JP7110693B2 - Cooling system - Google Patents

Description

The present invention relates to cooling devices.

2. Description of the Related Art Conventionally, a cooling device having a cooling unit and an evaporating unit is known. The cooling unit is configured with an evaporator, a compressor, and a condenser. The evaporator evaporates the supplied refrigerant to cool the air passing around itself. The compressor sucks and compresses the refrigerant evaporated by the evaporator. The condenser condenses the refrigerant compressed by the compressor. An expansion mechanism is provided between the condenser and the evaporator. The expansion mechanism adiabatically expands the refrigerant condensed in the condenser and supplies it to the evaporator.

The evaporating unit comprises an evaporating dish and an evaporating sheet. The evaporating dish stores condensed water generated in the cooling unit. The evaporating sheet is set upright on the evaporating dish and sucks the condensed water by capillary action.

In such a cooling device, the condenser is installed above the evaporating unit in a sideways position so that the refrigerant compressed by the compressor flows in the front-rear direction while meandering in the left-right direction. By driving the blower fan, the air that has passed through the evaporation unit is sent out so as to pass through the condenser (see, for example, Patent Document 1).

JP 2017-142045 A

In the cooling device proposed in the above-mentioned Patent Document 1, since the condenser is installed in the upper region of the evaporation unit in a sideways position, the space for installing the condenser is sufficient in the front-rear direction. It was necessary to ensure that As a result, the dimension in the front-rear direction is increased, resulting in an increase in the size of the entire device.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cooling device capable of reducing the overall size of the device.

In order to achieve the above object, a cooling device according to the present invention comprises an evaporator for evaporating a supplied refrigerant to cool a fluid passing therearound, and a compressor for sucking and compressing the refrigerant evaporated by the evaporator. a condenser for condensing the refrigerant compressed by the compressor; an evaporating dish for storing condensed water generated in the cooling unit; and an evaporating unit that sucks the vapor by capillary action, wherein the condenser is installed in an upright posture in which the length in the front-rear direction is shorter than that in a sideways posture, and the evaporative suction The body is provided upright on the rear side of the condenser, and is horizontally provided in such a manner as to block an upper opening of a wind tunnel provided on the rear side of the evaporative suction body, and the air that has passed through the condenser is A blower fan is provided for blowing the air so that it passes through the evaporative suction body, passes through the inside of the wind tunnel, and is sent upward from the upper opening.

Further, in the cooling device according to the present invention, the evaporative suction body is formed by sandwiching a corrugated sheet member between flat sheet members separated in parallel to each other when viewed from the front. It is characterized by being configured by

Further, according to the present invention, in the cooling device described above, a plurality of the blower fans are arranged in a horizontal direction, and the wind tunnels are separated from each other in the leftward and rightward direction according to the blower fans. and a wall member.

According to the present invention, the condenser is installed in an upright posture in which the length in the front-rear direction is shorter than that in the sideways posture, and the evaporative suction body is provided on the rear side of the evaporative suction body standing on the rear side of the condenser. A blower fan, which is installed horizontally in such a manner as to close the upper opening of the wind tunnel, sends the air that has passed through the condenser upward through the upper opening after passing through the evaporation suction body and then passing through the inside of the wind tunnel. Since this air is blown, compared with the conventional arrangement of the condenser in a sideways position, the dimension in the front-rear direction can be reduced, and the overall size of the apparatus can be reduced. Play. Moreover, since the air that has passed through the condenser from the front to the rear is sent upward from the upper opening of the wind tunnel by the blower fan, the air sent from the upper opening passes through the condenser due to the action of the blower fan. There is an effect that it can be suppressed.

FIG. 1 is a cross-sectional side view schematically showing the internal structure of a showcase to which a cooling device according to an embodiment of the invention is applied. 2 is a perspective view showing the cooling device shown in FIG. 1. FIG. 3 is a perspective view showing a main part of the cooling device shown in FIG. 2. FIG. FIG. 4 is a perspective view showing a longitudinal section of a main part of the cooling device shown in FIG. 3. FIG. FIG. 5 is an enlarged view of the evaporative suction body shown in FIGS. 3 and 4 as viewed from the front. 6 is a perspective view showing the internal structure of the wind tunnel shown in FIGS. 3 and 4. FIG. FIG. 7 is an enlarged view of an evaporative suction body constituting a modified example of the cooling device shown in FIG. 1 as viewed from the front.

Preferred embodiments of a cooling device according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional side view schematically showing the internal structure of a showcase to which a cooling device according to an embodiment of the invention is applied. The showcase illustrated here includes a case body 10 .

The case main body 10 is a heat insulating housing having an opening (hereinafter also referred to as a front opening) 10a on the front surface. The case main body 10 has a storage chamber 11 defined therein, and an air circulation means 20 and a cooling device 30 are provided.

The storage room 11 is a room defined in a manner facing the front opening 10a, and has a plurality (five in the illustrated example) of product placement shelves 12 arranged in a vertical direction. The product placement shelf 12 is for placing each product.

A deck pan 13 is provided at the bottom of the storage room 11 . The deck pan 13 is for placing products in the same manner as the product placing shelf 12 described above.

A suction port 14 is formed in the front lower portion of the storage chamber 11, and an air outlet 15 is formed in the front upper portion of the storage chamber 11. As shown in FIG.

The suction port 14 is an opening for sucking the air inside the storage chamber 11 and extends along the lateral direction of the storage chamber 11 . The blowout port 15 is an opening for blowing air into the interior of the storage chamber 11 . The air outlet 15 extends in the lateral direction of the storage chamber 11 . Although not shown in the drawings, a straightening member having a honeycomb structure is appropriately attached to the outlet 15 .

The air circulation means 20 comprises an air passage 20a and a circulation fan 20b. The air passage 20 a is an air passage from the inlet 14 to the outlet 15 .

Such an air passage 20a communicates with the suction port 14 and includes a lower side air passage 21 outside the storage chamber 11 and below it, and a rear air passage 21 outside the storage chamber 11 and on the rear side thereof. An air passage 22, a storage box 23 outside and above the storage chamber 11, and an upper side air passage 24 outside and above the storage chamber 11 and communicating with the outlet 15. They are configured in a manner in which they communicate with each other.

The circulation fan 20 b is driven to circulate the air and is provided at a predetermined portion of the lower air passage 21 . In this embodiment, the circulation fan 20b is provided at a predetermined portion of the lower air passage 21, but in the present invention, the arrangement position of the circulation fan 20b is not particularly limited. It may be provided anywhere as long as it can exhibit the function of 20b.

In such an air circulation means 20, the air inside the storage chamber 11 is sucked through the suction port 14 by driving the circulation fan 20b, and the sucked air passes through the air passage 20a. 15, and the air is blown out into the storage chamber 11 through the outlet 15, thereby circulating the air between the inside and the outside of the storage chamber 11. FIG.

FIG. 2 is a perspective view showing cooling device 30 shown in FIG. As also shown in FIG. 2, the cooling device 30 includes a cooling unit 30a and an evaporation unit 30b.

The cooling unit 30 a is constructed by sequentially connecting an evaporator 31 , a compressor 32 , a condenser 33 , and an expansion mechanism 34 through refrigerant pipes 35 . The evaporator 31 is installed inside the storage box 23 and cools the air passing through the inside of the storage box 23 by evaporating the supplied refrigerant. The compressor 32 sucks and compresses the refrigerant evaporated in the evaporator 31 by being driven.

The condenser 33 is installed in an upright position in front of the top wall of the main cabinet. In the condenser 33, as shown in FIG. 3, a flat refrigerant passage tube 33a in which a plurality of refrigerant passages are arranged side by side extends along the vertical direction while meandering in the left-right direction. An inlet side header 33b is connected to the inlet side of the pipe 33a, and an outlet side header 33c is connected to the outlet side of the refrigerant passage pipe 33a. A corrugated fin member 33d is thermally connected between the horizontally extending portions of the refrigerant passage pipe 33a. A refrigerant line 35 connected to the outlet side of the compressor 32 is connected to the inlet side header 33b, and a refrigerant line 35 connected to the expansion mechanism 34 is connected to the outlet side header 33c. . Such a condenser 33 exchanges heat between the refrigerant compressed by the compressor 32 and passing through the refrigerant flow path and the air passing around, thereby condensing the refrigerant.

That is, the condenser 33 is provided in an upright posture in which the refrigerant compressed by the compressor 32 flows vertically while meandering in the horizontal direction. It is installed in such a manner that the length in the front-rear direction is shorter than the sideways posture that flows in the front-rear direction.

The expansion mechanism 34 adiabatically expands the refrigerant condensed in the condenser 33 to a low temperature and low pressure state, and supplies the refrigerant to the evaporator 31 .

As shown in FIG. 4, the evaporation unit 30b is installed on the rear side of the condenser 33 and on the front side of the storage box 23, and comprises an evaporation dish 36 and an evaporation sucker 37. As shown in FIG.

The evaporating dish 36 is for storing condensed water generated in the cooling unit 30a (evaporator 31) through a gutter (not shown).

A plurality of evaporative suction bodies 37 (two in the illustrated example) are provided, each of which has a rectangular parallelepiped shape. These evaporating suction bodies 37 are erected on the evaporating dish 36 behind the condenser 33 so as to be aligned side by side. The evaporative suction body 37 is formed by processing filter paper. More specifically, when viewed from the front as shown in FIG. A corrugated sheet member 372 is sandwiched between pattern sheet members 371 . The evaporative suction body 37 sucks the condensed water stored in the evaporating dish 36 with the flat sheet member 371 and disperses it on the corrugated sheet member 372, thereby sucking the condensed water by capillarity.

A wind tunnel 40 is provided above the evaporating dish 36 and behind the evaporating suction body 37 . As shown in FIG. 6, the wind tunnel 40 includes a pair of left and right side walls 41, a rear wall 42 connecting the rear ends of the side walls 41, and connecting the upper ends of the side walls 41 to each other. It is composed of an upper wall 43 that is continuous with the upper wall 43 and a pedestal wall 44 provided in a manner facing the upper wall 43 . That is, the wind tunnel 40 has a rectangular parallelepiped shape with an open front surface. The side wall 41 has a front end portion extending forward from the upper wall 43 and the base wall 44 and covers both side regions of the evaporative suction body 37 .

A rectangular upper opening 43a is formed in the upper wall 43 of the wind tunnel 40 over substantially the entire area. They are arranged horizontally side by side. These blower fans 45 send the air that has passed through the wind tunnel 40 upward from the upper opening 43a when driven. In this embodiment, adjustment is made so that the blowing volume of the two blower fans 45 on the center side is larger than that of the blower fans 45 on both the left and right sides.

A pedestal wall 44 of the wind tunnel 40 is provided with a plurality of (three in the illustrated example) wall members 46 . These wall members 46 are provided on the base wall 44 while being spaced apart from each other in the left-right direction so as to extend upward from locations facing the portions between the adjacent blower fans 45 . That is, the wall members 46 are spaced apart from each other along the left-right direction according to the blower fan 45 .

In the showcase configured as described above, the air inside the storage chamber 11 is sucked through the suction port 14 by driving the circulation fan 20b, and passes through the lower air passage 21 and the rear air passage 22. and enter the storage box 23 . The air entering the storage box 23 passes through the upper air passage 24 and reaches the outlet 15 and is blown out from the outlet 15 . The air blown out from the blowout port 15 forms an air curtain by flowing toward the suction port 14 while passing through the tip of each product shelf 12 .

In the cooling device 30 , the refrigerant compressed by the compressor 32 is condensed by the condenser 33 and reaches the expansion mechanism 34 by driving the compressor 32 . The refrigerant sent to the expansion mechanism 34 is adiabatically expanded and then sent to the evaporator 31, where it exchanges heat with the air passing through the storage box 23 while passing through the refrigerant passage of the evaporator 31 and evaporates. The evaporated refrigerant is sucked into the compressor 32 and circulated.

By driving the compressor 32 in this manner, the air passing through the storage box 23 is cooled, and the cooled air is blown out from the outlet 15. As a result, the air inside the storage chamber 11 is discharged. The product placed on the product placement shelf 12 is cooled.

Further, by driving the compressor 32 , condensed water is generated in the evaporator 31 , and the generated condensed water is supplied to the evaporating dish 36 through a gutter and stored in the evaporating dish 36 .

In the cooling device 30 , the air outside the case body 10 passes through the condenser 33 from the front to the rear by driving the blower fan 45 , and then passes through the evaporative suction member 37 . The air passing through the evaporative suction body 37 in this way reaches the inside of the wind tunnel 40, passes between the side wall 41 and the wall member 46 or between the wall members 46, and is sent upward from the upper opening 43a. be.

As described above, according to the cooling device 30 according to the embodiment of the present invention, the condenser 33 is installed in an upright posture in which the length in the front-rear direction is shorter than in the sideways posture. A blower fan 45 provided horizontally in a manner to block an upper opening 43a of a wind tunnel 40 provided on the rear side of an evaporation suction body 37 erected on an evaporating dish 36 on the rear side of 33 passes through the condenser 33. After passing through the evaporative suction body 37, the air is blown through the inside of the wind tunnel 40 and sent upward from the upper opening 43a. In comparison, the dimension in the front-rear direction can be reduced, and the size of the entire device can be reduced. Moreover, since the air that has passed through the condenser 33 from the front to the rear is sent upward from the upper opening 43a of the wind tunnel 40 by the blower fan 45, the air sent from the upper opening 43a acts as the blower fan 45. can be suppressed from passing through the condenser 33 .

According to the cooling device 30, when viewed from the front, the evaporative suction bodies 37 are arranged between flat plate-like flat sheet members 371 separated left and right in parallel to each other. is sandwiched between them, the contact area with the air blown by the blower fan 45 can be increased, and the air can pass through the gap between the flat sheet member 371 and the corrugated sheet member 372. , a sufficient amount of the air can be ensured. Therefore, the condensed water can be evaporated satisfactorily. Moreover, since the air passing through the evaporative suction member 37 is the air that has passed through the condenser 33, the air whose temperature has risen in the condenser 33 and whose relative humidity has decreased passes through the evaporative suction member 37, resulting in condensation. Water can be evaporated well.

According to the cooling device 30, since the wall members 46 are provided on the pedestal wall 44 constituting the wind tunnel 40 so as to be spaced apart from each other along the horizontal direction in accordance with the blower fan 45, the wind tunnel 40 is driven by the blower fan 45. When the internal air passes between the side wall 41 and the wall member 46 or between the wall members 46, the wall member 46 acts as a rectifying member that guides the air. It is possible to suppress the occurrence of turbulence caused by the mutual interference of passing air.

According to the cooling device 30, since the two central blowing fans 45 are adjusted to have a larger air blowing amount than the left and right blowing fans 45, the air inside the wind tunnel 40 passes through the evaporation suction body 37. It is possible to favorably blow the air that has reached the

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made.

In the above-described embodiment, the evaporative suction body 37 is configured by sandwiching the corrugated sheet member 372 between the plate-like flat sheet members 371 separated left and right in a manner parallel to each other. However, in the present invention, as shown in FIG. 7, the evaporative suction body 37' is wave-shaped between flat sheet members 371' separated vertically in parallel to each other when viewed from the front. A shaped corrugated sheet member 372' may be sandwiched. As a result, the evaporating suction body 37' can also suck the condensed water by capillary action, and the air passing through the gap between the flat sheet member 371' and the corrugated sheet member 372' Sufficient air flow can be secured.

Although the cooling device 30 applied to the showcase has been described in the above-described embodiment, the present invention is not limited to the showcase and may be applied to a vending machine or the like.

In the above-described embodiment, the evaporative suction body 37 has a corrugated corrugated sheet member 372 between flat plate-like flat sheet members 371 separated vertically in a manner parallel to each other when viewed from the front. Although it is sandwiched, in the present invention, it may have a honeycomb structure when viewed from the front.

30 Cooling Device 30a Cooling Unit 30b Evaporation Unit 31 Evaporator 32 Compressor 33 Condenser 34 Expansion Mechanism 36 Evaporation Plate 37 Evaporation Suction Body 40 Wind Tunnel 43a Upper Opening 45 Blower Fan 46 Wall Member

Claims (3)

An evaporator that evaporates the supplied refrigerant to cool the fluid passing around, a compressor that sucks and compresses the refrigerant evaporated by the evaporator, and a condenser that condenses the refrigerant compressed by the compressor. a cooling unit having
A cooling device comprising: an evaporating dish for storing condensed water generated in the cooling unit;
The condenser is installed in an upright posture in which the length in the front-rear direction is shorter than in the sideways posture, and the evaporative suction body is erected on the rear side of the condenser,
It is provided horizontally in such a manner as to block an upper opening of a wind tunnel provided on the rear side of the evaporative attractor, and the air that has passed through the condenser passes through the evaporative attractor and then passes through the inside of the wind tunnel to the A blower fan that blows the air so that it is sent upward from the upper opening ,
A plurality of the blower fans are provided in a horizontally aligned manner along the left-right direction,
The cooling device is characterized in that the blowing volume of the central blowing fan is adjusted to be larger than that of the blowing fans on the left and right sides . The evaporative suction body is characterized in that, when viewed from the front, a corrugated sheet member is sandwiched between flat plate-like flat sheet members separated in parallel to each other. The cooling device according to claim 1. 3. The cooling device according to claim 1, wherein the wind tunnel includes wall members spaced apart from each other in the horizontal direction according to the blower fan.

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