JP2012065915A - Food service cart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a control unit by preventing a temperature rise inside a machine chamber.SOLUTION: The machine chamber 40 includes a refrigerating unit 50 for cooling the inside of a refrigerated chamber, the control unit 90 for controlling operations of the refrigerating unit 50, an operating unit 80, and the like. Various components forming the control unit 90 are collectively stored inside a storing box B facing an air circulation space L of the operating unit 80. The air circulation space L is formed inside the machine chamber 40 so as to extend from a condenser 54 forming the refrigerating unit 50 along a back face of the operating unit 80. Air taken from the outside passes through the condenser 54 and discharged outside after moving along the operating unit 80 while moving through the air circulation space L. A part of the air moving through the air circulation space L goes in and out the storing box B so as to prevent a temperature rise of the various components of the control unit 90.

Description

  The present invention includes a refrigerating room and a machine room defined above the refrigerating room, and the machine room includes a refrigerating apparatus that cools the refrigerating room, a control unit that controls the operation of the refrigerating apparatus, and an operation unit. It relates to the arranged car.

  In hospitals, hotels, etc., for example, a layout car disclosed in Patent Document 1 is implemented. This distribution vehicle defines a storage section inside a movable main body, partitions the storage section into a warm room and a cold room with a partition wall, and places a food tray so as to face both the warm room and the cold room. It can be inserted horizontally. Therefore, the food placed on the placing portion facing the storage room of the food tray inserted and held in the partition wall is kept warm, and the food placed on the placing portion facing the cold storage room side of the food tray is It is designed to be kept cool. A machine room is defined in the upper part of the main body, a refrigeration unit (compressor, condenser, cooling unit (evaporator)) for cooling each refrigerator compartment, and a blower unit that circulates air to each refrigerator compartment In addition, a cooler chamber that covers the cooling unit from above, an operation unit that performs temperature setting, an electrical box that houses a control unit that controls the operation of the refrigeration unit, the blower unit, and the like are disposed.

JP 2008-11955 A

  By the way, in the distribution vehicle disclosed in Patent Document 1, since the electrical box is disposed in the machine room, the flow of air in the machine room is hindered and the temperature in the machine room is likely to increase. For this reason, the temperature of the electrical box installed in the machine room is always maintained at a high temperature, and a failure of an electrical control component that is vulnerable to heat, such as a control board or a relay in the control unit housed in the electrical box. There is a difficulty that is easy to induce. In addition, it is necessary to install a rectifying plate, a guide plate, etc. for smooth air flow in the machine room at an appropriate place in the machine room, and the installation of the rectifying plate and the guide plate makes the machine room more complicated. Further, there is a problem that the manufacturing cost increases as the number of parts increases. Furthermore, since the operation unit and the control unit are individually arranged in the machine room, the number of man-hours for assembling the arrangement vehicle is increased, and an electrical box for storing the control unit is required, which increases the number of parts and increases the manufacturing cost. There are also challenges.

  The present invention has been proposed in view of the above-mentioned problems inherent in a conventional layout vehicle, and is proposed to suitably solve this problem. A layout vehicle that protects a control unit by suppressing a temperature rise in a machine room is provided. The purpose is to provide.

In order to overcome the above problems and achieve the intended purpose, the invention according to claim 1 of the present application is
A refrigerating room and a machine room defined above the refrigerating room, a refrigerating apparatus for cooling the refrigerating room, a control unit for controlling the operation of the refrigerating apparatus, and an operating unit arranged in the machine room In the car,
Various parts constituting the control unit are collectively arranged in the operation unit,
In the machine room, an air circulation space extending from the condenser constituting the refrigeration device along the back surface of the operation unit is defined,
The air that has been taken in from the outside and passed through the condenser is configured to be discharged to the outside after moving through the air circulation space.

  Therefore, according to the first aspect of the present invention, since the control unit is centrally arranged in the operation unit and the air circulation space is defined in the machine room, the air after passing through the condenser of the refrigeration apparatus is air circulation. It becomes possible to smoothly circulate along the space, and the temperature rise in the machine room can be suppressed. As a result, it is possible to prevent the various components constituting the control unit from being maintained at a high temperature and to prevent a failure due to a temperature rise of the components. Further, since the current plate and the guide plate are unnecessary, the machine room is simplified and the number of parts is not increased, so that the manufacturing cost can be reduced. Furthermore, since the operation unit and the control unit are integrated, the operation unit and the control unit can be installed in the machine room at the same time, and the assembly work of the trolley can be rationalized and simplified.

The invention described in claim 2
Various parts constituting the control unit are stored in a storage box facing the air circulation space of the operation unit,
The gist of the invention is that the storage box is provided with a vent that allows a part of the air moving through the air circulation space to enter and exit.
Therefore, according to the invention according to claim 2, since the control unit is housed in the storage box that allows air to enter and exit from the operation unit, the components constituting the control unit are appropriately protected, Due to the contact with the air entering and exiting the storage box, the temperature rise of the components constituting the control unit is appropriately suppressed.

The invention according to claim 3
In the machine room, a heat insulating member that separates the evaporator constituting the refrigeration apparatus from the machine room side and is positioned on the cold room side is disposed in a state of facing the air circulation space. And
Therefore, according to the third aspect of the invention, the heat insulating member that isolates the evaporator from the machine room and is positioned on the refrigerator compartment side faces the air circulation space defined on the machine room side. The temperature of the air flowing through the space and the temperature of the outer surface of the heat insulating member on the machine room side are substantially the same, and condensation of the outer surface of the heat insulating member on the machine room side can be prevented.

  Since the distribution vehicle according to the present invention can smoothly distribute the air in the machine room, the temperature rise in the machine room can be suppressed and the components constituting the control unit can be protected.

It is explanatory drawing which showed the apparatus installation aspect in the machine room in the allocation vehicle which concerns on the Example of this invention. It is a side view which shows the arrangement vehicle of an Example partially broken and shows the opening-and-closing door arrange | positioned on the both sides of the main body. It is explanatory sectional drawing which shows the distribution | circulation aspect of the cooling air and heating air of the layout vehicle of an Example. It is a plane sectional view of the allocation vehicle of an example. (a) is a front view of the operation part which accommodated the control part, (b) is a plane sectional view of the operation part which accommodated the control part, (c) is the operation part which accommodated the control part. It is a rear view. It is a sectional side view which shows the heat insulation member which covers the evaporator of a freezing apparatus. It is a front sectional view which shows the heat insulation member which covers the evaporator of a freezing apparatus.

  Next, a preferred embodiment of the allocation vehicle according to the present invention will be described below with reference to the accompanying drawings. In the embodiment, the moving direction of the arrangement vehicle is the front-rear direction, the direction perpendicular to the moving direction is the left-right direction, and the direction perpendicular to the moving direction is the up-down direction.

  As shown in FIGS. 2 to 4, the layout vehicle W according to the embodiment has a double structure of an outer box 11 </ b> A and an inner box 11 </ b> B, and a heat insulating material is disposed inside, similarly to the layout vehicle disclosed in Patent Document 1. And a main body 10 having a heat insulating structure in the form of a rectangular box as a whole with both left and right sides open. The arrangement vehicle W is configured such that a machine room 40 is defined above the main body 10 and a plurality of casters 14 are disposed at the bottom of the main body 10 so as to be movable.

  The main body 10 is vertically provided with a central wall 16 having the same width as the left and right width of the main body 10 at the center in the front-rear direction inside the inner box 11B. It is defined by. Further, in each storage chamber 12, a partition wall 20 that is divided into a plurality of pieces (up to six in the embodiment) and has a heat insulating structure is provided vertically at a substantially central portion in the front-rear direction. A warm room 22 is defined on the side of the wall 20 away from the central wall 16, and a cold room 24 is defined on the side of the partition wall 20 adjacent to the central wall 16. In the left and right openings of the main body 10, four doors 18 are disposed so as to be openable and closable corresponding to the warming chambers 22 and 22 and the refrigeration chambers 24 and 24, respectively.

  As shown in FIGS. 3, 4, and 7, the central wall 16 has a cold air flow passage 26 in which air cooled by a refrigeration apparatus 50 disposed in the machine room 40 flows. In addition, air vents 27 are formed which are formed of a plurality of slits that spatially communicate each of the refrigerating chambers 24 and the cold air flow path 26 (FIG. 7). Thereby, the cooling air sent out into the cold air flow path 26 is supplied into each refrigerator compartment 24 and 24 via each ventilation port 27, and the inside of this refrigerator compartment 24 and 24 is cooled. In addition, on the front wall 10A and the rear wall 10B of the main body 10, hot air ducts 28 and 28 through which air heated by heating devices 70 and 70 disposed in the machine room 40 circulate are adjacent to the inner box 11B. The warm air ducts 28 are formed with a plurality of vent holes 29 that spatially communicate with the warm chambers 22 and the warm air ducts 28. Thereby, the heated air sent out into the warm air duct 28 is supplied into the warm room 22 through each vent 29, and the warm room 22 is warmed.

  As shown in FIG. 3, the inner plate 11 </ b> B of the main body 10 has a first plate 30 formed in substantially the same size as the bottom area of each of the warming chambers 22 on each surface on the heat insulating material side of the inner box 11 </ b> B. It is disposed in close contact with a position corresponding to the bottom of the warm room 22. By arranging the first plate 30 at the bottom of the warming chamber 22 in this way, the temperature decreasing rate at the bottom of the warming chamber 22 is reduced when the heating device 70 is stopped, and the heat retaining property of the warming chamber 22 is maintained. Has been improved. In addition, in the inner box 11B of the main body 10, a second plate 32 formed to be approximately the same size as the upper area of each refrigerating chamber 24 is provided above each refrigerating chamber 24 on the surface of the inner box 11B on the heat insulating material side. It is arranged in close contact with the corresponding position. By arranging the second plate 32 in the upper part of the refrigerating chamber 24 in this way, the temperature rise rate in the upper part of the refrigerating chamber 24 is reduced when the refrigeration apparatus 50 is stopped, and the cold insulation property of the refrigerating chamber 24 is improved. It is. It is desirable that the first plate 30 and the second plate 32 are closely attached to the inner box 11B and fixed to the wall portion with an adhesive or a double-sided tape having a high thermal conductivity.

  Each partition wall 20 is configured by connecting up and down six partition members 34, and the remaining five partition members 34 excluding the partition member 34 positioned at the upper end of the partition wall 20 are provided with tray support members 36, 36. As a result, the food tray T is placed between the tray support members 36 and 36 by being inserted between the vertically adjacent partition members 34 and 34, and the first placement portion T1 of the food tray T is placed on the warming chamber 22 side. And the second placement portion T2 is located on the refrigerator compartment 24 side. Therefore, the food placed on the first placement unit T1 is warmed and kept warm, and the food placed on the second placement unit T2 is cooled and kept cold.

  As shown in FIGS. 1 to 3, the machine room 40 is formed in a rectangular frame shape that matches the upper shape of the main body 10 and has a cover member 42 that is fixed at the lower end along the upper outer edge of the outer box 11 </ b> A. The lid member 44 is formed in a shape that can cover the rectangular upper opening 42A formed on the upper portion of the cover member 42, and is detachably attached to the cover member 42. On the left wall 42B of the cover member 42, a laterally long side opening 42C that exposes the operation portion 80 to the outside is formed (see FIG. 2). In addition, an air intake port 46 formed of a large number of slits for taking external air into the machine chamber 40 is formed in the right wall 42D of the cover member 42 at a position facing the condenser 54 of the refrigeration apparatus 50. Has been. On the other hand, the lid member 44 is formed with air discharge ports 48 and 48 formed of a large number of slits for discharging the air in the machine room 40 to the outside. In addition, the slit which comprises the air exhaust port 48 is not provided immediately above the heat insulation member 62 and the operation part 80, in order to form the air circulation space L mentioned later.

  As shown in FIG. 1, the refrigeration apparatus 50 for cooling the refrigerator compartments 24, 24 compresses and vaporizes the refrigerant, and condenses and liquefies the refrigerant compressed and vaporized by the compressor 52. The condenser 54, an expansion valve (not shown) that decompresses the refrigerant condensed and liquefied by the condenser 54, and an evaporator 56 that expands and evaporates the liquefied refrigerant are connected by a refrigerant flow pipe. The compressor 52 is disposed on the left side of the front part of the machine room 40, the condenser 54 is disposed adjacent to the right side of the compressor 52, and the evaporator 56 is long in the left-right direction at the approximate center of the machine room 40. They are arranged in a direction that matches the vertical direction. The condenser 54 is disposed in such a posture that the intake side faces the air intake port 46 and the exhaust side of the blower fan 58 faces the compressor 52 side, and the air after heat exchange that has passed through the condenser 54. Is blown out toward the compressor 52. Further, as shown in FIGS. 6 and 7, the evaporator 56 includes two circulation fans 60 and 60 adjacent to each other on the left and right.

  As shown in FIGS. 1 and 3, in the upper center of the main body 10, a first opening 13 </ b> A that communicates the inside of the refrigerator compartment 24 on the rear side and the machine room 40 side, and a cold air flow path 26 on the central wall 16. A second opening 13 </ b> B that communicates with the machine room 40 side is formed side by side along the evaporator 56. That is, the first opening 13 </ b> A is formed on the rear side of the evaporator 56, and the second opening 13 </ b> B is formed on the front side of the evaporator 56.

  In the center of the machine room 40, as shown in FIGS. 3, 6 and 7, a partition member 66 having a substantially rectangular reverse bucket shape is provided with the evaporator 56, the first opening 13A and the second opening. It arrange | positions in the state which covered the opening part 13B from upper direction. The partition member 66 is a synthetic resin molded member formed by injection molding or the like, and is integrally formed around the outer periphery of the lower end portion with a hook-shaped attachment piece 67 extending horizontally. ing. The partition member 66 is attached to the main body 10 in a state where the attachment piece 67 is in close contact with the upper surface of the main body 10, and the refrigerating chamber 24 and the cold air flow path 26 are connected via the first opening 13 </ b> A and the second opening 13 </ b> B. A cooling space 64 that communicates spatially is defined in the machine room 40, and the evaporator 56 is isolated from the machine room 40 and disposed in the cooling space 64 (on the refrigerator room 24 side).

  Further, as shown in FIGS. 1, 3, 6, and 7, the outer surface of the partition member 66 excluding a part of the mounting piece 67 is entirely covered on the machine room 40 side of the partition member 66. A heat insulating member 62 is disposed. The heat insulating member 62 is foam-molded into a reverse bucket shape from a material having excellent heat insulating properties such as foamed styrene, and the inner surface 62A of the heat insulating member 62 is formed in a concave shape that matches the outer surface shape of the partition member 66. Similarly to the partition member 66, the evaporator 56 is isolated from the machine room 40. The heat insulating member 62 is attached to the partition member 66 with an adhesive or the like with the inner surface 62A in close contact with the outer surface of the partition member 66 without a gap. That is, since the inner surface 62A of the heat insulating member 62 is in close contact with the outer surface of the partition member 66 without a gap, the air in the machine chamber 40 is prevented from entering between the heat insulating member 62 and the partition member 66, Condensation between the heat insulating member 62 and the partition member 66 is prevented. Further, as shown in FIGS. 1 and 3, the outer surface 62 </ b> B of the heat insulating member 62 is fully exposed to the machine room 40 side, and an air flow space L described later defined in the machine room 40. The air that convects the machine room 40 and the air that flows through the air circulation space L can come into contact with the entire outer surface of the heat insulating member 62.

  In the allocation vehicle W of the embodiment, as shown in FIGS. 1 and 7, the evaporator 56 is disposed at the center of the left and right sides of the main body 10, and the cold air flow path 26 formed in the center wall 16 has the center. It is disposed at the center of the left and right of the wall 16 and is located directly below the second opening 13B. Accordingly, when the circulation fans 60 and 60 disposed in the evaporator 56 are rotationally driven by the operation of the refrigeration apparatus 50, the air in the rear refrigerator compartment 24 enters the cooling space 64 via the first opening 13A. The air that has been introduced and cooled by passing through the evaporator 56 is discharged substantially vertically downward into the cold air flow channel 26 through the second opening 13B. Thereby, since it is not necessary to deflect and adjust the flow direction of the cooling air sent into the cold air flow path 26, in order to guide the cooling air toward each of the air outlets 27, each of the air outlets 27 correspondingly. Each of the provided guide plates 72 has the same shape and is formed in a simple flat plate shape having mounting pieces 72A. That is, since the cooling air is not discharged in an oblique direction with respect to the cooling air flow path 26, each guide plate 72 has a complicated shape so that the cooling air can be rectified, or each guide plate 72 There is no need for different shapes. Therefore, the kind of the guide plate 72 is unified, and the manufacturing cost is suppressed.

  The heating device 70 includes heating means such as an electric heater inside, and is disposed at a front portion and a rear portion in the machine room 40 as shown in FIGS. 1 and 3. On the upper front side of the main body 10, a third opening 13 </ b> C communicating with the warm air duct 28 disposed on the front wall 10 </ b> A of the main body 10 and a fourth opening 13 </ b> D communicating with the front warming chamber 22 are formed. The heating device 70 circulates and supplies heated air to the warm air duct 28 and the warming chamber 22 on the front side through the third opening 13C and the fourth opening 13D. Further, on the upper rear side of the main body 10, a fifth opening 13 </ b> E communicating with the hot air duct 28 disposed on the rear wall 10 </ b> B of the main body 10 and a sixth opening 13 </ b> F communicating with the rear warming chamber 22 are provided. The rear heating device 70 thus formed circulates and supplies heated air to the rear hot air duct 28 and the warming chamber 22 through the fifth opening 13E and the sixth opening 13F.

  As shown in FIGS. 5 (a) and 5 (b), the operation unit 80 includes a horizontally long storage box B, and a power plug 84 and various kinds of devices disposed on a panel unit 82 provided on the front surface of the storage box B. The switch 86 is configured. The power plug 84 is a terminal to which a terminal of a power cord from an external power source is detachably connected. By connecting the power cord to the power plug 84, electric power is supplied to the distribution vehicle W, and the refrigeration apparatus 50 and The heating device 70 and the like can be operated. The switch 86 is an indoor temperature adjustment switch for the refrigerator compartment 24, an indoor temperature adjustment switch for the warm compartment 22, or the like. Such an operation unit 80 is fixed to the upper part of the main body 10 by attaching the mounting pieces 88 and 88 provided at the front and rear of the storage box B to the side opening 42C formed on the left wall 42B of the cover member 42. 82 is attached to the main body 10 in alignment (FIGS. 1 and 2).

  And in the allocation vehicle W of an Example, as shown in FIG.5 (b) and FIG.5 (c), various electrical control components which comprise the control part 90 in the storage box B of the said operation part 80 are shown. Are disposed in a stored state. Here, the electrical control components constituting the control unit 90 are a relay 92, a control board 94, and the like. Each relay 92 is disposed in a front side portion in the storage box B, and each control board 94 is connected to the storage box. It is arranged in the rear part in B. That is, in the layout vehicle W of the embodiment, the operation unit 80 and the control unit 90 are unitized in advance in a state where they are stored in the single storage box B, and are arranged at predetermined positions in the machine room 40. Attach to the same time.

  The storage box B storing the operation unit 80 and the control unit 90 is stored in the machine room 40 (on the air circulation space L side) as shown in FIGS. 5 (b) and 5 (c). The wall portion of the box B is provided with a first vent 89A and a second vent 89B that allow air to enter and exit. Thereby, a part of the air flowing through the air circulation space L flows into the storage box B through the first vent 89A, and the air flowing into the storage box B passes through the second vent 89B. The storage box B can be ventilated while the refrigeration apparatus 50 is in operation. Note that a mesh 87 for preventing dust from entering the storage box B is attached to the first vent 89A and the second vent 89B (FIGS. 5B and 5C).

  Therefore, in the machine room 40 of the allocation vehicle W of the embodiment, as shown in FIG. 1, the control unit 90 is stored in the storage box B of the operation unit 80, so that the electrical box that stores the control unit 90 is A space extending left and right is defined between the heat insulating member 62 and the rear heating device 70. Further, by arranging the evaporator 56 of the refrigeration apparatus 50 at the left and right center and the front and rear center of the machine room 40, the partition member 66 and the heat insulating member 62 are also arranged at the center of the machine room 40. A space extending in the front-rear direction is defined between the portion 80. As a result, as shown in FIG. 1, the machine room 40 extends from the condenser 54 toward the compressor 52 toward the left and right on the front side of the heat insulating member 62, and moves back and forth along the operation unit 80 on the left side of the heat insulating member 62. And an air circulation space L having a “U” shape in a plan view is defined on the rear side of the heat insulating member 62 along the heating device 70.

  That is, in the arrangement wheel W of the embodiment, when the refrigeration apparatus 50 is operated, external air is taken into the machine chamber 40 through the air intake 46 by driving the blower fan 58 of the condenser 54, and the condenser 54. Pass through. The air sent out from the condenser 54 moves to the left in front of and behind the compressor 52 along the air circulation space L, and a part of the air passes through the air discharge port 48 provided on the front side of the lid member 44. It is discharged outside. In addition, the air that is not discharged to the outside from the front air discharge port 48 moves rearward along the storage box B and the heat insulating member 62 of the operation unit 80 and then turns to the right, and then turns to the right. It moves to the right between 62 and the heating device 70 on the rear side, and is finally discharged to the outside through the air discharge port 48 on the rear side. A part of the air sent out from the condenser 54 is a space defined between the upper portion of the heat insulating member 62 and the lid member 44, or between the heat insulating member 62 and the right wall 42D of the cover member 42. It will also move to the space defined.

Therefore, according to the allocation vehicle W of an Example, there exist the following effects.
(1) Since the air sent out from the condenser 54 circulates smoothly in the machine room 40 by the air circulation space L defined in the machine room 40, the temperature rise in the machine room 40 can be suppressed. it can.
(2) Since the control components such as the relay 92 and the control board 94 constituting the control unit 90 are stored in the storage box B where the air can enter and exit from the operation unit 80, it is like a layout car of Patent Document 1. The same protection as when stored in the electrical box is achieved. In addition, various control components such as the relay 92 and the control board 94 constituting the control unit 90 are prevented from being maintained at a high temperature by coming into contact with the air entering and exiting the storage box B, and the temperature rises. The occurrence of failure of the control component can be suppressed.
(3) Since various control parts such as the relay 92 and the control board 94 of the control unit 90 are stored in the storage box B of the operation unit 80, the operation unit 80 and the control unit 90 are formed as a single unit member. Thus, the operation unit 80 and the control unit 90 can be mounted in the machine room 40 at the same time, so that the assembly work of the distribution vehicle W can be rationalized and simplified. In addition, since an electrical box that houses the control unit 90 is not necessary, the number of parts can be reduced, and the manufacturing cost of the layout vehicle W can be reduced.
(4) There is no need to provide a separate rectifying plate or guide plate in the machine room 40, the inside of the machine room 40 is simplified, and there is no production cost of the rectifying plate or guide plate, so the manufacturing cost of the distribution car W is reduced. It can be reduced.
(5) Since the heat insulation member 62 is disposed at a position where the entire outer surface 62B is exposed to the machine room 40 and faces the air circulation space L, the air sent from the condenser 54 contacts the entire outer surface 42B. And since the temperature of the outer surface 62B of this heat insulation member 62 is maintained substantially the same as the temperature in the machine room 40, the outer surface 62B of this heat insulation member 62 does not condense. Therefore, even if the heat insulating member 62 has a configuration in which the outer surface 62B is exposed in the machine room 40, the heat insulating performance does not deteriorate due to moisture permeating into the heat insulating member 62 and the outer surface of the heat insulating member 62 is Since the resin member to coat | cover can be made unnecessary, the manufacturing cost of the layout vehicle W can be reduced.

(Example of change)
(1) When the control unit 90 is stored in the storage box B of the operation unit 80, the arrangement of control components such as the relay 92 and the control board 94 constituting the control unit 90 is in the form illustrated in the embodiment. Without being limited thereto, the control board 94 may be disposed in the front portion of the storage box B, and the relay 92 may be disposed in the rear portion of the storage box B. Of course, the relay 92 and the control board 94 may be arranged in a mixed state in the storage box B.
(2) The first plate 30 may be mounted on the surface of the inner box 11B on the warming chamber 22 side, and the second plate 32 may be mounted on the surface of the inner box 11B on the refrigerator compartment 24 side. Further, the first plate 30 may not be mounted when the warming chamber 22 is not required to be kept warm, and the second plate 32 is not required to be mounted when the cold store 24 is not required to be kept cool.
(3) The air discharge port 48 may be provided on the left wall 42B, the right wall 42D, or the rear wall of the cover member 42.
(4) The operation unit 80 may be provided on the right wall 42 </ b> D of the cover member 42. In this case, the arrangement relationship between the evaporator 56 and the compressor 52 is reversed left and right, and the air circulation space L is formed in an inverted U shape extending to the right side of the heat insulating member 62, so that the operation equivalent to the embodiment is achieved. An effect is obtained.

24 refrigeration room, 40 machine room, 50 refrigeration system, 90 control unit, 80 operation unit 92 relay (parts), 94 control board (parts), 89A 1st vent (vent)
89B 2nd vent (vent), 56 Evaporator, 62 Heat insulation member, B Storage box L Air circulation space

Claims (3)

A refrigeration room (24) and a machine room (40) defined above the refrigeration room (24) are provided, and the machine room (40) includes a refrigeration apparatus (50) for cooling the inside of the refrigeration room (24). In the arrangement vehicle in which the control unit (90) and the operation unit (80) for controlling the operation of the refrigeration apparatus (50) are arranged,
Various parts (92, 94) constituting the control unit (90) are collectively arranged in the operation unit (80),
In the machine room (40), an air circulation space (L) extending along the back surface of the operation unit (80) from the condenser (54) constituting the refrigeration apparatus (50) is defined,
An arrangement vehicle characterized in that air taken from outside and passed through the condenser (54) is discharged to the outside after moving through the air circulation space (L). Various parts (92, 94) constituting the control unit (90) are stored in a storage box (B) facing the air circulation space (L) of the operation unit (80),
The distribution vehicle according to claim 1, wherein the storage box (B) is provided with vent holes (89A, 89B) that allow part of the air moving through the air circulation space (L) to enter and exit.   In the machine room (40), a heat insulating member (62) for separating the evaporator (56) constituting the refrigeration apparatus (50) from the machine room (40) side and positioning the evaporator (56) side. 3 is arranged in a state of facing the air circulation space (L).

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