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`JP,10-288447,A
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`E PAJ . Detail
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`CLAIMS DETAILED OESCRIPTION
`LE§§BLE®£§E9RAW!fillies, .QREEMDLQS
`
`* NOTICES *
`JPO and INPIT are not responsible for any
`damages caused by the use of this translation.
`1.This document has been translated by computer. So the translation may not
`reflect the original precisely.
`2.**** shows the word which can not be translated.
`3.1n the drawings, any words are not translated.
`
`CLAIMS
`[Claim(5)]
`[Claim 11A stair—like part which retreated the lower part to the adiabatic box inside is formed in
`a one side part of an adiabatic box which constitutes a refrigerator of an approximately
`rectangular solid, Inside of an upper part adiabatic box of the stair-like part is made into cooling
`unit storage space of a refrigeration unit, Outside of a lower adiabatic box of said stair-like part
`is made into condensing unit storage space, An opening is provided to a front face of storage
`space of the aforementioned cooling unit, and an adiabatic wall surface on the back, A cooling
`unit is attached to the inner surface side of two lids which close the two openings at a
`cantilever type, respectively, Insert in the individual aforementioned cooling unit storage space
`a cooling unit attached to the lid from an opening of a front face of the above, and a rear face,
`respectively, and the aforementioned lid closes each aforementioned opening, A condensing
`unit individually connected to the aforementioned condensing TSUNlTl'O storage space on the
`other hand at each aforementioned cooling unit is stored, A passthrough type refrigerator the
`aforementioned cooling unit and the aforementioned condensing unit having constituted two
`refrigeration units, and enabling operation of the two refrigeration units independently.
`[Claim 2]The aforementioned condensing unit is a condenser on a substrate so that a heat
`exchange surface of a condenser may turn into a front face. By attaching each apparatus, such
`as a compressor, and carrying out set-up fixing of the aforementioned lid in the upper part of a
`condenser, really assemble a condensing unit and a cooling unit and it forms as elegance, The
`passthrough type refrigerator according to claim 1 which carries out insertion or having
`attached withdrawal for two refrigeration units constituted in this way to a sliding type with the
`characteristics from each front face and rear face of the aforementioned one side part of the
`aforementioned adiabatic box.
`[Claim am the aforementioned adiabatic box, set an interval inside [ warehouse ] the
`aforementioned cooling unit, and it provides a partition plate ranging from a bottom surface to
`a ceiling surface in an adiabatic box, Provide a cold admission port in the lower part of the
`partition plate, provide a cold air outlet in the upper part, and it inhales air in a warehouse
`inhaled from the aforementioned cold admission port to the aforementioned cooling unit via the
`aforementioned interval, The passthrough type refrigerator according to claim 1 constituting so
`that air cooled by the cooling unit may be blown out in a warehouse from the aforementioned
`cold diffuser.
`[Claim 4]The two aforementioned sets of refrigeration units inserted from a front face and a
`rear face. The passthrough type refrigerator according to claim 2 which a motor for a
`condenser, a condenser cooling fan, and condenser cooling fans and a compressor are same
`parts, and is made into collocating, and a motor for an evaporator, an evaporator fan, and
`evaporator fans is a same part, and is further characterized by being bilateral symmetry
`attachment.
`[Claim SIThe passthrough type refrigerator according to claim 2 attaching a control panel of the
`aforementioned refrigeration unit to the outer surface side of a lid of the aforementioned
`opening.
`[Claim 6]The passthrough type refrigerator according to claim 5 providing each, front panel
`which has a cooling air intake and an exhaust port of a condenser on a front face and a rear
`face of a one side part of the aforementioned adiabatic box to a door type so that opening and
`closing are possible.
`[Claim 7]A cooling air intake of the aforementioned condenser is provided in the lower part of
`the front panel used as a front face of the aforementioned condenser, An exhaust port of
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`cooling air of the aforementioned condenser is provided in the upper part of the
`aforementioned intake of the aforementioned front panel, The passthrough type refrigerator
`according to claim 6 having provided space which becomes a portion which serves as a side
`outer side of said stair-like part in the upper part of a condensing unit with an ejection passage
`of cooling air which cools a condenser, and making the space communlcate the aforementioned
`exhaust port.
`[Claim 8]The passthrough type refrigerator according to claim 7 providing an auxiliary exhaust
`port of cooling air of the aforementioned condenser to a refrigerator shell of the regions-of—back
`side of a condenser of the aforementioned condensing unit.
`[Claim 91A passthrough type refrigerator of a description to any one of the Claims 6-8, wherein
`appearance is formed in order plane symmetry.
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`JP, 10-288447,A
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`{PAJ : Detaiiwiiaage i
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`a:
`{MS DETAILED DESCRIPTION
`REPTEON OF DRAWINS “
`
`
`
`
`
`* NOTICES *
`JPO and INPIT are not responsible for any
`damages caused by the use of this translation.
`1.This document has been translated by computer. So the translation may not
`reflect the original precisely.
`2.**** shows the word which can not be translated.
`3.In the drawings, any words are not translated.
`
`'
`
`DETAILED DESCRIPTION
`[Detailed Description of the Invention]
`[0001]
`[Field of the Invention]The present invention relates to the fitting structure of the refrigeration
`unit of a passthrough type refrigeraton
`[0002]
`[Description of the Prior ArtJA passthrough type refrigerator has a warehouse inner door on a
`front face and a rear face, and can take foods in and out of order both sides, for example as
`known for the JP H8 - 210765A. The dish piled in the platter from the kitchen side of a
`restaurant is put into a refrigerator, Waiters or a waitress chooses timing at their own
`discretion from the customer side of a restaurant, and this refrigerator has a good use kitchen,
`such as providing for a customer, and is mostly used as business use in the restaurant etc.
`[0003]However, moreover the intrusion amount of the open air accompanying opening and
`closing of a warehouse inner door becomes [ many ] and change of temperature inside
`becomes intense, the capability of a refrigeration unit serves as insufficient feeling, and this
`refrigerator has the problem that reaching preset temperature takes time for a long time, when
`the switching frequency of a warehouse inner door is intense like an operating peak period. In
`order to have solved this problem, the refrigeration unit with large capacity might be mounted,
`but the outside dimension of the compressor enlarged and there was a problem that
`reservation of space was difficult. When one set of a refrigeration unit with large capacity was
`mounted, and refrigeration load was small, there was a problem that it was forced inefficient
`refrigerating operation.
`[0004]
`[Problem to be solved by the inventionJThe present invention was made paying attention to the
`problem which exists in such a Prior art, the purpose enables storage of a refrigeration unit
`with large capacity space-saving, and it is in moreover providing the refrigerator which can
`operate a refrigeration unit efficiently.
`[0005]
`[Means for solving problem]ln order to achieve the above-mentioned object, in the present
`invention according to claim 1, The stair—like part which retreated the lower part to the
`adiabatic box inside is formed in the one side part of the adiabatic box which constitutes the
`refrigerator of an approximately rectangular solid, The inside of the upper part adiabatic box of
`the stainlike part is made into the cooling unit storage space of a refrigeration unit, Outside of
`the lower adiabatic box of the above~mentioned stair-like part is made into condensing unit
`storage space, An opening is provided to the front face of the storage space of the
`aforementioned cooling unit, and an adiabatic wall surface on the back, A cooling unit is
`attached to the inner surface side of two lids which close the two openings at a cantilever type,
`respectively, Insert in the individual aforementioned cooling unit storage space the cooling unit
`attached to the lid from the opening of the front face of the above, and a rear face,
`respectively, and the aforementioned lid closes each aforementioned opening, The condensing
`unit individually connected to the aforementioned condensing TSUNITTO storage space on the
`other hand at each aforementioned cooling unit is stored, The aforementioned cooling unit and
`the aforementioned condensing unit constitute two refrigeration units, and it enables operation
`of the two refrigeration units independently.
`[0006]ln the present invention according to claim 2, the aforementioned condensing unit, Each
`apparatus, such as a condenser and a compressor, is attached on a substrate so that the heat
`exchange surface of a condenser may turn into a front face, And by carrying out set-up fixing of
`
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`the aforementioned lid, really assemble a condensing unit and a cooling unit in the upper part
`of a condenser, and it forms in it as elegance, it is insertion about two refrigeration units
`constituted in this way from each front face and rear face of the aforementioned one side part
`of the aforementioned adiabatic box to a sliding type -- or it attaches withdrawal.
`[ODD7]In the present invention according to claim 3, in the aforementioned adiabatic box, set
`an interval inside [ warehouse ] the aforementioned cooling unit, and it provides the partition
`plate ranging from the bottom surface to a ceiling surface in an adiabatic box, A cold admission
`port is provided in the lower part of the partition plate, a cold air outlet is provided in the upper
`part, and the air in a warehouse inhaled from the aforementioned cold admission port is inhaled
`to the aforementioned cooling unit via the aforementioned interval, and it constitutes so that
`the air cooled by the cooling unit may be blown out in a warehouse from the aforementioned
`cold diffuser.
`[0008]In the present invention according to claim 4, the two aforementioned sets of the
`refrigeration units inserted from a front face and a rear face. The motor for a condenser, a
`condenser cooling fan, and condenser cooling fans, a compressor, and an evaporator are same
`parts for collocating to be made, and further, the motor for an evaporator fan and evaporator
`fans is a same part, and serves as bilateral symmetry attachment.
`[0009]The control panel of the aforementioned refrigeration unit is attached to the outer
`surface side of the lid of the aforementioned opening in the present invention according to
`claim 5.
`[0010]In the present invention according to claim 6, to a door type, each, front panel which
`has the cooling air intake and exhaust port of a condenser on the front face and rear face of a
`one side part of the aforementioned adiabatic box is provided so that opening and closing are
`possible.
`[0011]In the present invention according to claim 7, the cooling air intake of the
`aforementioned condenser is provided in the lower part of the front panel used as the front face
`of the aforementioned condenser, The exhaust port of the cooling air of the aforementioned
`condenser is provided in the upper part of the aforementioned intake of the aforementioned
`front panel, the space which becomes a portion which serves as a side outer side of the above-
`mentioned stair-like part In the upper part of a condensing unit with the ejection passage of the
`cooling air which cools a condenser is provided, and the space is made to communicate the
`aforementioned exhaust port.
`[0012]In the present Invention according to claim 8, the auxiliary exhaust port of the cooling
`air of the aforementioned condenser is provided to the refrigerator shell of the regions-of—back
`side of the condenser of the aforementioned condensing unit.
`[0013]In the present invention according to claim 9, appearance is formed in order plane
`symmetry.
`[0014]If it is in the passthrough type refrigerator according to claim 1 constituted as mentioned
`above, Since it has the structure where width of storage space is made narrowly, and a
`condensing unit is provided downward, and a cooling unit is arranged in the upper part since a
`refrigeration unit is divided into two sets and it is stored by the one side part of a refrigerator,
`space is utilizabie in three dimensions. Therefore, the capacity of a refrigeration unit can be
`enlarged, without enlarging the width dimension of the storage space of a refrigeration unit.
`Since two sets of refrigeration units are mounted, even if one set breaks down, operation of a
`stopover measure becomes possible by other one set. Since one set or the two numbers of
`driver‘s seats can be properly used according to cooling load, the operating efficiency of a
`refrigeration unit improves. Defrosting operation can be performed for every set and can lessen
`the temperature change in a warehouse.
`[OOISJIf it is in the passthrough type refrigerator according to claim 2, The cooling unit and the
`condensing unit can be preliminarily assembled integrally as a refrigeration unit, moreover -- it
`is insertion from a front face and a rear face to a sliding type about the refrigeration unit which
`was being assembled -— or since it is attached withdrawal, the attachment work of a
`refrigeration unit and after-sale service work become easy. Since the refrigeration unit is
`similarly inserted in the sliding type from the longitudinal dimension, as fitting structure of a
`refrigeration unit, any surface can be dealt with as a transverse plane approximately.
`[0016]If it is in the passthrough type refrigerator according to claim 3, the air in a warehouse
`will be inhaled from the cold admission port provided by the lower part of the partition plate,
`the cold cooled with the evaporator from the cold air outlet of the partition plate upper part will
`be blown out, and the cooling temperature distribution in a warehouse becomes good.
`[0017]If it is in the passthrough type refrigerator according to claim 4, Since the principal part
`of the motor for the motor for a condenser, a condenser cooling fan, and condenser cooling
`fans, a compressor, an evaporator, an evaporator fan, and evaporator fans is commonalized,
`and in common or they are considered as symmetrical attachment, a refrigeration unit is
`abbreviated—standardized and a manufacturing cost is reduced. [ these parts ]
`[0018]If it is in the passthrough type refrigerator according to claim 5, a control panel will be
`arranged in the front upper part, and becomes easy [ the start-and-stop work of a refrigeration
`unit, the operation at the time of after-sale service, and inspection work ].
`[0019]Since the front panel of the refrigeration unit is provided by the front face and the rear
`face so that the opening and closing to a door type are possible if it is in the passthrough type
`refrigerator according to claim 6, the opening-and-closing space of this front panel is always
`secured. Since the intake and discharge port of cooling air of the condensing unit are provided
`by this front panel, it can respond also to mounting situations which make a refrigerator side
`surface be along a wall surface.
`[OOZOJSince space is provided as an exhaust passage of cooling air above the condensing unit if
`it is in the passthrough type refrigerator according to claim 7, circulation of cooling air is
`performed smoothly.
`[0021]$ince the auxiliary exhaust port of cooling air is provided by the refrigerator shell of the
`regions‘of-back side of a condenser if it is in the passthrough type refrigerator according to
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`claim 8, the distribution resistance of cooling air is reduced and the power requirement of a fan
`is reduced.
`[0022]Since a longitudinal dimension is symmetrically formed in appearance if it is in the
`passthrough type refrigerator according to claim 9, even if it changes direction of a refrigerator
`180 degree, inconvenience does not arise at all by the work kitchen or installation conditions.
`[0023]
`[Mode for carrying out the inventionJAbout an embodiment of the invention, it describes in
`detail with reference to an accompanying drawing. In the description of these following
`embodiments, especially, as long as there is no notice, order carries out a direction vertical to
`the paper side in Fig.1 order, a near side is used as a front face, and right and left are taken as
`right and left as it is, also in [describing the right and left in Fig.1 ].
`[0024]Fig.1 is drawing of longitudinal section of the passthrough type refrigerator concerning
`this embodiment, and the left side part of the adiabatic box 1 besides an approximately
`rectangular solid, The lower part is formed in the stair-like part 2 which retreated to the inner
`side direction of the adiabatic box 1, and let the upper part of this stair-like part 2, i.e., the
`inside of the adiabatic box 1, be the cooling unit storage space 5 of the refrigeratlon unlt
`mentioned below. Let the lower part of the stair~|il<e part 2, i.e., the outside of the adiabatic
`box 1, be the condensing unit storage space 6 of a refrigeration unit. As shown in Fig.2, the
`opening 3 is provided by the adiabatic wall surface of the upper front of this stair-like part 2,
`and it is not illustrated, but the opening 3 is provided also like the adiabatic wall surface of the
`rear face of the stair-like part 2. And the lid 4 is prepared for this opening 3, and the cooling
`unit 10 is attached to this lid 4 so that it may mention below.since this lid 4 closes the opening
`3 and forms the adiabatic box 1 after cooling unit 10 insertion, it is constituted as what has a
`thermal insulation function.
`[0025]Next, it describes about a refrigeration unit. In Fig.3, the handle 213 for plane shape to
`be a rectangular base and for 21 pull the base 21 to a near side is formed. This handle 21a
`starts the bottom plate of the base 21 up. On this base 21, the condenser 22 is attached so
`that that heat exchange surface may form a front face. And the fan guide 23, the propeller type
`condenser cooling fan 24, and the motor 25 for condenser cooling fans are attached to the back
`side of this condenser 22. 25a is a mount of the motor 25 for fans. Behind the motor 25 for
`condenser cooling fans, the compressor 26 is attached via the rubber cushion 27 at the base
`21. The condensing unit 20 of the refrigeration unit is formed by the above.
`[00261The stationary plate 28 of L shape is attached to the top surface of the upper board 22a
`of the above-mentioned condenser 22, and support fixing of the lid 4 of the opening 3 of the
`cooling unit storage chamber 5 is vertically carried out to this stationary plate 28. And the
`evaporator 11 of the cooling unit 10 is supported by the cantilever type by fixing the side board
`of the evaporator 11 to the rear face of the aforementioned lid 4 via the fixing member 15.
`Therefore, the evaporator 11 is attached so that a heat exchange surface may make the lid 4
`and a perpendicular. The fan guide 12 is formed so that the evaporator 11 order may be
`covered, and the evaporator fan 13 and the motor 14 for evaporator fans are attached to the
`front side portion of the evaporator 11 in the Fig.3 of this fan guide 12. In Fig.3, 16 is a glass
`tube heater for defrost of the evaporator 11, and is attached to the front face of a lower part of
`the evaporator 11. 17 is a thermistor for temperature-inside detection. The control panel 30 of
`the refrigeration unit is attached to the front face of the aforementioned lid 4. The cooling unit
`10 and the condensing unit 20 assemble a refrigeration unit integrally, and it is formed by the
`above composition.
`[0027]The side surface shell 37 on the left-hand side of [ side part ] the cooling unit storage
`chamber 5, In the aforementioned adiabatic box 1, space is separated and it provides, and
`while extending the condensing unit storage space 6 of stair‘like part 2 above-mentioned lower
`part for a while and enlarging it, the space as the exhaust passage 7 of the cooling air of a
`condensing unit is formed in the upper lateral portion of the stair-like part 2.
`[ODZBJThe refrigerator of this embodiment so that clearly from the perspective view seen from
`the front face of Fig.5 and Fig.6. Also In [ the front panel 35 whose opening and closing were
`enabled is formed in the piece difference type in front so that the double warehouse inner doors
`31 and 32 opening outward and a refrigeration unit may be made withdrawal, and ] a rear
`face, The same front panel 36 as the double warehouse inner doors 33 and 34 opening
`outward and the above is formed in the front face and the symmetrical position. As for the
`front panels 35 and 36, the exhaust port 42 where the intake 41 of the cooling air of a
`condensing unit communicates the upper part in the aforementioned exhaust passage 7 again
`is provided downward. The inspection hole 43 of the control panel is formed in the right
`direction of the exhaust port 42. As shown in the left lateral shell 37 of the condensing unit
`storage space 6 Fig.5 and 6, the auxiliary exhaust port 44 of cooling air is provided
`symmetrically approximately. The appearance of this refrigerator is formed as mentioned
`above, is made symmetrical in appearance approximately, and it comprises the user‘s eye so
`that which cannot specify with a front face. Fig.1 and the code 9 in 5 and 7 are the legs of this
`refrigerator.
`[0029]Flg.2 is a perspective view of the side part which stored the aforementioned refrigeration
`unit -- and the shell 37 of the left lateral of a refrigerator —— taking -- sushi -- The front panels
`35 and 36 formed in the front face and rear face of a refrigerator are opened wide, the handle
`21 is pulled from this ****, and the state where the refrigeration unit was dragged out is
`shown. The condensing unit storage space 6 has an'anged the two section horseshoe<shaped
`unit bases 51 slightly broader than the aforementioned base 21 on the bottom part forward and
`backward. The screw stop of this unit base 51 is carried out to the adiabatic box 1 using that
`lateral portion. Set—up fixing of the two frames 52 is carried out by a screw stop at the near-
`side lateral portion of each unit base 51, respectively, and the upper part is fixed to the lateral
`portion of the upper adiabatic box 1 of the above-mentioned stair-like part 2 by the screw stop.
`It is divided by the rear panel 53 of two sheets, and the exhaust passage 7 of the cooling air of
`the upper part of the condensing unit storage space 6 is also divided forward and backward by
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`the shield 54, and the condensing unit storage space 6 is bisected, respectively.
`[00301The base 21 is inserted in and carried on the unit base 51 from both **** of the front
`panels 35 and 36 of order, and the refrigeration unit constituted as mentioned above is slid to
`the white arrow direction of Fig.2 on the unit base 51, and is stuffed into the inside. Thus, the
`condensing unit 20 is stored, the lower part, i.e., condensing unit storage space 6, of the
`above-mentioned stair-like part 2, and the cooling unit 10 is stored by the inside of the above-
`mentioned adiabatic box of the stair-like part 2 upper part, i.e., the cooling unit storage space
`5. Where a refrigeration unit is stuffed into a predetermined position, the securing bolt 38
`which the aforementioned opening 3 was abutted and the aforementioned lid 4 projected
`outside from the upper and lower parts of the opening 3 is inserted in the boithole 41 provided
`by the lid 4. And the lid 4 is fixed to the opening 3 by binding a nut tight to this securing bolt.
`[0031]A refrigeration unit is constituted as mentioned above, and since it is stored, the
`refrigeration unit on the front-face side, and the refrigeration unit on the rear-face side,
`Principal parts, such as the condenser 22, the condenser cooling fan 24, the fan guide 23, the
`motor 25 for condenser cooling fans, the evaporator 11, the fan guide 12, the evaporator fan
`13, the motor 14 for evaporator fans, and the unit base 51, are made into an identical
`configuration, Partial parts, such as the evaporator 11, the fan guide 12, and the unit base 51,
`are considered as symmetn’cai attachment approximately. In order to attach a same part
`symmetrically, the fixing means for the object sides for the front-face sides and the rear-face
`sides is provided preliminarily. For example, although the screw stop of the fan guide 12 is
`carried out to the side board of the evaporator 11, attachment of it is symmetrically attained
`approximately by forming this fan guide 12 in symmetrical first, and providing the screwhole
`provided to the evaporator 11 to all of the right and left of the aforementioned side board,
`About the unit base 51, attachment becomes possible symmetrically approximately by
`providing the screwhole for fixing to the adiabatic box 1 to the right and left side board.
`[0032]Ne)<t, as shown in Fig.1 and Fig.7, in the adiabatic box 1, ahead [ of the right direction of
`the above-mentioned stair-like part 2, i.e., the heat exchange surface of the evaporator 11, ] a
`predetermined interval is set, and the partition plate 61 is provided. And let space of this
`partition plate 61 and the wall surface of the adiabatic box 1 of the lower part of the stair-like
`part 2 be the suction passage 62 of the air in a warehouse. The opening 63 ls provided by the
`portion of the partition plate 61 of this suction passage 62 which is placed in front, and to this
`opening 63 The grili~like cold admission port 64, The grill plate 66 which has the hit component
`65 for securing predetermined space is attached between stores, such as foods, and the cold
`admission port 64. Three sides except the lower side are bent by L shape, this grill plate 66 is
`formed in a core box thin as the whole, and a screw stop is carried out to the partition plate 61
`in the three aforementioned sides, and let the lower side he an opening which takes in the air
`in a warehouse to the suction passage 62. The cold air outlet 67 is provided by the upper part
`of the partition plate 61, and the plate-like cold direction board 68 is aslant arranged between
`this cold air outlet 67 and the heat exchange surface of the evaporator 11.
`[0033]When it is constituted as mentioned above and two sets of the stored refrigeration units
`are operated, in the condensing unit 20, cooling air is sucked from the cooling air intake 41 of
`the front panel 35 like the solid line arrow of Fig.4. And this cooling air is led to the condenser
`22, the condenser 22 is cooled, and oneself, it is heated, and is sent to regions of back, a part
`is exhausted from the auxiliary exhaust port 44 provided by the side surface shell 37 of the
`refrigerator, and the remainder lets the exhaust passage 7 of cooling air pass, and is exhausted
`from the exhaust port 42 of the upper part of the front panel 35. In the cooling unit 10 in a
`warehouse on the other hand, After the cold sucked from the cold admission port 64 of the grill
`plate 66 attached to the partition plate 61 flows into the evaporator 11 via the suction passage
`62 and is cooled by the evaporator 11, it shows around at the cold direction board 68, and
`blows out in a warehouse from the cold air outlet 67, and the foods in a warehouse are cooled.
`[003410peration control of the two above-mentioned sets of refrigeration units is performed as
`follows. In the state of an operation standup, two refrigeration units perform cooling down
`simultaneously, and it makes the inside of a warehouse cool. And if prescribed temperature is
`reached, the inner 1 set of two sets of refrigeration units will be stopped, and cooling down in a
`warehouse is performed by remaining one set. And in the operating middle class, opening and
`closing of the warehouse inner doors 31—34 become frequent, and when cooling load enlarges
`and temperature inside has risen, it controls to operate with two refrigeration units.
`[003511n order to carry out operation control in this way, the degrees of warehouse inside
`installation constant temperature of each refrigeration unit are made to differ. For example, in
`the degree of warehouse inside installation constant temperature of one refrigeration unit, if 3
`degrees C and the degree of warehouse inside installation constant temperature of the
`refrigeration unit of another side shall be 5 degrees C, two sea of refrigeration units will be
`operated in the state of [ both ] a standup with high temperature inside. If temperature inside
`will be 5 degrees C, shutdown of the refrigeration unit will be carried out and while the degree
`of warehouse inside installation constant temperature was set to 5 degrees C will be operated
`only with the refrigeration unit of another side. And if temperature inside will further be
`deteriorated and will be 3 degrees C, shutdown of two sets of both the refrigeration units will
`be carried out. When temperature inside exceeds 3 degrees C again, the refrigeration unit in
`which the degree of warehouse inside installation constant temperature was set as 3 degrees C
`resumes operation. Opening and closing of the warehouse inner doors 31-34 become frequent,
`cooling load increases, and if temperature inside comes to exceed 5 degrees C, two sets of both
`refrigeration units will come to be operated. Thus, if operation control of two sets of the
`refrigeration units is carried out, according to cooling load, the control of number of units will
`become possible. When one set of a refrigeration unit breaks down, operation of a refrigerator
`can be temporarily continued by one set of other refrigeration unit.
`[0036]Next, if it is operating for a long time, it will act as Frost of the evaporator 11. in this
`case, the thermistor for defrost (not shown) arranged by the suction surface portion of the
`evaporator 11 -- frothed one -- the bottom detects temperature deterioration of the evaporator
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`Patent & Utility Model Number Search(Detai1) l J-PlatPat
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`11, operation of that refrigeration unit is suspended, the glass tube heater 16 for defrost is
`operated, and defrosting operation is performed. However, since operation control of two sets
`of the refrigeration units is carried out like the above like the above in the case of this
`embodiment, it will be rare to carry out defrost of two sets of the refrigeration units
`simultaneously probable, and defro