JP3334386B2 - Cool storage type cooling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerative cooling system for cooling a room by utilizing the latent heat of melting of a regenerative material, which is suitable as a cooling device for cooling a nap room of a vehicle (for example, a truck). It is.

[0002]

2. Description of the Related Art Conventionally, as a regenerative cooling device for cooling a nap room of a vehicle, a device described in Japanese Patent Application Laid-Open No. 62-149509 is known. In addition, a nap room is formed, a cooling unit is provided on a wall surface behind the nap room, a suction port is provided below the cooling unit, and an air outlet is provided above the cooling unit,
Further, a regenerative cooler and a blower are provided inside.

The regenerative cooler is composed of a refrigerant evaporator provided in a refrigeration cycle for air conditioning of a vehicle and a regenerator material stored in the evaporator. To cool the cold storage material,
Then, when the driver naps in the nap room when the truck stops, the blower is operated to blow air into the air flow path of the cold storage material portion, and heat exchange is performed between the cold storage material and the blown air, and the air is blown. The air is cooled, and the cooled air is blown out from the outlet into the nap room.

As shown in FIG. 15, the regenerative cooler comprises an evaporator 1 comprising a multi-hole flat tube bent in a meandering shape, and a bag-like regenerative pack 2. The cold storage pack 2 has a structure in which the cold storage pack 2 is adhered to the tube flat surface of the evaporator 1. Air is blown into the air passage 3 between the cold storage packs 2, and the blown air is cooled by the cold storage pack 2. Like that.

[0005]

The above regenerative storage pack 2 comprises:
It is composed of a thin film pack for improving heat transfer and absorbing the expansion of the cold storage material stored inside it when frozen, but the cold storage material is located at the bottom of the pack due to the weight of the cold storage material inside. As a result, the cold storage pack 2 is deformed into a shape that swells downward as shown in FIG. 16, and as a result, it takes time for the lower swelling part of the cold storage pack 2 to freeze to the inside during cold storage, In some cases, it cannot be frozen.

On the other hand, even when the inside of the lower swelling portion of the cold storage pack 2 can be frozen, the inside of the swelling portion on the lower side of the cold storage pack 2 is conversely cooled during cooling (during cooling). Takes a long time to melt, and a problem arises in that the cold storage capacity cannot be used effectively. In addition, there is a problem that the lower swelling portion of the regenerative storage pack 2 blocks the lower part of the air passage 3 and significantly reduces the air volume during cooling.

Therefore, as shown in FIG. 17, in order to prevent deformation of the cold storage packs 2, a honeycomb-shaped spacer 4 made of resin is provided between the cold storage packs 2, and the air passages are formed by the spacers 4. 3 has been proposed, but in this configuration, a honeycomb-shaped spacer 4 made of resin must be specially manufactured.
There is a problem that the cost is increased due to an increase in the number of parts, and the addition of the spacers 4 also deteriorates the assembling workability.

[0008] The present invention has been made in view of the above points,
An object of the present invention is to prevent deformation of a regenerative storage pack without adding a spacer.

[0009]

The present invention employs the following technical means to achieve the above object. According to the first aspect of the present invention, a cold storage means containing a cold storage material inside a resin pack-shaped member (23) formed vertically long in the vertical direction, a cooling means (10) for cooling the cold storage means, An air flow path (24) formed so as to be capable of exchanging heat with the cold storage means (10); and a blowing means (21) for blowing air to the air flow path (24) and blowing the cool air cooled by the cold storage means to a cooling target portion. ), And the pack-shaped member (23) extends in two directions (230) extending substantially linearly in the vertical direction and unevenly in the vertical direction, and couples the two side surfaces (230). And two concavo-convex surfaces (231). Further, of the pack-shaped member (23), the two concavo-convex surfaces (2
31) and the concave portion (231a)
The central portion (230a) of the two side surfaces (230) to which a) is connected is formed thicker than other portions, and the two uneven surfaces (2) of the pack-shaped member (23) are formed.
The convex part (231b) of 31) closely adheres to the cooling means (10), the concave part (231a) of the two concave and convex surfaces (231) of the pack-shaped member (23) and the cooling means (10).
And a regenerative cooling device in which the air flow path (24) is formed.

According to a second aspect of the present invention, in the cold storage type cooling device according to the first aspect, the uneven surface (231) is formed to be inclined with respect to a horizontal direction. According to a third aspect of the present invention, in the regenerative cooling device according to the first or second aspect, the uneven surface (231) has a slope portion (231c) between the convex portion (231b) and the concave portion (231a). ) Is formed, and this slope portion (2) is formed.
31c) is such that the thickness of the convex portion (231b) and the concave portion (2
31a) is set to an intermediate value of the wall thickness.

According to a fourth aspect of the present invention, in the cold storage type cooling device according to any one of the first to third aspects, a cold storage material injection nozzle is inserted into the concave portion (231a) of the uneven surface (231). A protruding portion (231e) that can be formed is formed. In the invention according to claim 5,
5. The regenerative cooling device according to claim 1, wherein the recess (231 a) is provided with the recess (23).
A projection (231d) for facilitating the bulging of 1a) is formed.

[0012] In the invention according to the sixth aspect, a resin pack-like member (23) which is formed in a vertically long shape and stores a cold storage material therein is provided.
Two side surfaces (23) extending substantially linearly in the longitudinal direction
0), and two uneven surfaces (231) extending unevenly in the longitudinal direction and connecting between the two side surfaces (230), and further comprising the pack-shaped member (23). The concave portions (231a) of the two concave and convex surfaces (231) and the two side surfaces (23) to which the concave portions (231a) are connected.
The cold storage pack is characterized in that the central portion (230a) of 0) is formed thicker than other portions.

The reference numerals in the parentheses of the above means indicate the correspondence with the concrete means described in the embodiments described later.

[0014]

According to the first to sixth aspects of the present invention,
The pack-shaped member for storing the cold storage material is provided with two side surfaces extending substantially linearly in the vertical direction and two concave and convex surfaces extending in an uneven shape in the vertical direction and connecting between the two side surfaces. Since the concave portions of the three concave and convex portions and the central portion of the two side surfaces to which the concave portions are connected are formed thicker than other portions, the concave and convex shapes can be effectively reinforced by the thick portions. Therefore, even if the cold storage material is stored, the lower portion of the pack-shaped member does not expand due to the weight of the cold storage material.

Accordingly, the deformation of the pack-shaped member (cool storage pack) can be prevented without using the conventional spacer, and the cooling function by allowing the cool storage material to cool can be exhibited well. In addition, the cost can be reduced by eliminating the conventional spacer, and the workability of assembling the pack-shaped member can be improved. Further, since the convex portion, which is a thin portion, can be disposed in close contact with the cooling means to cool the cold storage material, the heat transfer between the cold storage material and the cooling means can be improved, Cold storage in the cold storage material can be performed efficiently.

In addition to the above effects, in the invention according to the second aspect, the uneven surface is formed to be inclined with respect to the horizontal direction, so that drain water generated by cooling of the cold storage material during cooling is used. Water can be drained smoothly along the slope of the surface.
In the invention according to claim 3, a slope is formed between the projection and the recess of the uneven surface, and the thickness of the slope is set to an intermediate value between the projection and the recess. Therefore, the slope portion and the convex portion can relatively easily expand when the cold storage material expands in volume, and the pack-shaped member can be prevented from being damaged due to the volume expansion of the cold storage material.

In the invention described in claim 5, since the projections are formed in the recesses to facilitate the expansion of the recesses, the damage of the pack-shaped member due to the volume expansion of the cold storage material is prevented by the expansion of the recesses. Can be prevented. Further, in the invention according to claim 4, a protrusion is formed in a concave portion of the uneven surface,
Since the cool storage material injection nozzle can be inserted to the vicinity of the bottom of the pack-shaped member using the protruding portion, the air in the pack-shaped member can easily float, and the speed of the cool storage material injection into the pack-shaped member can be increased. Thus, the productivity of the cold storage material injection work can be improved.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. (First Embodiment) FIG. 1 shows a refrigeration cycle in which the present invention is applied to a regenerative cooling device for a nap room for a truck. Reference numeral 1 denotes a compressor, which is driven by a truck engine (not shown). It is designed to be driven via an electromagnetic clutch 1a. Reference numeral 2 denotes a condenser for cooling and condensing the high-temperature, high-pressure gas refrigerant discharged from the compressor 1, and reference numeral 3 denotes a liquid receiver for storing the liquid refrigerant condensed by the condenser 2 and drawing out only the liquid refrigerant.

4 is a normally open solenoid valve for interrupting the flow of the refrigerant,
Reference numeral 5 denotes a temperature-operated expansion valve as a decompression means for decompressing and expanding the liquid refrigerant, and 5a denotes a temperature-sensitive cylinder thereof. Reference numeral 6 denotes a refrigerant evaporator for air-conditioning the cab of the truck, which is installed in an air-conditioning unit (not shown) disposed below the instrument panel in front of the cab of the truck. Air is blown into the air conditioning unit by a blower (not shown). After the blown air is cooled by the evaporator 6, the air is blown into the vehicle interior via a heater unit (not shown) and an air outlet mechanism.

Reference numeral 7 denotes an air conditioning refrigerant circuit having the above-mentioned cab air conditioning devices (5, 6). The solenoid valve 4 interrupts the flow of refrigerant to the air conditioning refrigerant circuit 7. Reference numeral 8 denotes a cold storage refrigerant circuit provided in parallel with the air conditioning refrigerant circuit 7. Reference numeral 9 denotes a constant-pressure expansion valve serving as a pressure reducing means for reducing and expanding the liquid refrigerant flowing into the cold storage refrigerant circuit 8. When the pressure drops below the pressure, the valve opens.

Numeral 10 is a cold storage refrigerant evaporator (cooling means, cooling heat exchanger) for storing cold in a nap room installed behind the cab of the truck. The evaporator 10 is installed in the case of the cooling unit installed in the nap room. 1
Reference numeral 1 denotes a check valve, which is provided from the air conditioning evaporator 6 side to the cold storage evaporator 10.
To prevent the high-temperature refrigerant from flowing back to the cold storage evaporator 10.
The refrigerant flows only in one direction from the upstream side to the downstream side.

FIG. 2 shows a specific embodiment in which the device of the present invention is installed in a truck nap room.
A nap room 14 in which a bed 13 is provided is formed behind the nap. The nap room 14 and the cab 12 can be separated by a curtain or the like (not shown). In the nap room 14, a cooling unit 16 is provided on a side wall 15 on one end side in the vehicle width direction.

The cooling unit 16 has a vertically long, thin, rectangular parallelepiped resin case 17 as shown in FIGS. A suction port 18 for sucking air is provided. As shown in FIG. 3, the suction port 18 is formed of a number of small holes, and the holes are formed over substantially the entire front surface width direction of the cooling unit 16.

A lattice-shaped outlet 19 for blowing cold air toward a side wall (not shown) at the other end in the vehicle width direction is provided above the case 17. An air flow path 20 communicating with the outlet 19 is formed in an upper portion inside the case 16. A centrifugal blower 21 driven by a motor (not shown) so as to be located in the air flow path 20
Is arranged. A cooler installation chamber 22 is defined below the air flow path 20. The cool storage refrigerant evaporator 10 and the cool storage pack 23 cooled by the evaporator 10 are formed in the chamber 22. Is installed.

In this embodiment, the evaporator 10 is constituted by using a multi-hole flat tube 10a made of aluminum (see FIG. 5). The multi-hole flat tube 10a is formed in a flat cross section having a width dimension equal to the width dimension L of the regenerative pack 23 (see FIGS. 4 and 6), and a number of refrigerant passage holes are formed in parallel as is well known. ing. The flat tube 10a has bent portions at upper and lower ends, as shown in FIG. 5, and is formed so as to meander in a vertical (vertical) direction. 10b and 10c are refrigerant inlet / outlet pipes.

The cold storage pack 23 is disposed so as to be in close contact with the left and right flat surfaces of the flat tube 10a of the refrigerant evaporator 10. The cold storage pack 23 is formed in a vertically long uneven shape in the vertical direction as shown in the figure.
Water or a soft gel-like cold storage material is sealed in a thin pack-like (bag-like) member formed of resin.

The material of the pack 23 is preferably a material which is easily thinned, for example, polyethylene, nylon, etc., in order to improve the heat exchange property with the blown air. 3 and 5, reference numeral 24 denotes an air flow path formed between the concave portion of the cold storage pack 23 having the uneven shape and the flat tube 10a of the refrigerant evaporator 10. 4 indicates the flow of the air passing through the air flow path 24.

The present invention is characterized by the form of the cool storage pack 23. The specific form of the pack 23 will be described below in detail with reference to FIG. The cold storage pack 23 has two side surfaces 230, 230 extending substantially linearly in the vertical direction,
The two side surfaces 230 are connected by two concave and convex surfaces 231 and 231 extending in the vertical direction. Here, the width L of the two uneven surfaces 231 and 231 is sufficiently larger than the width of the side surfaces 230 and 230, and the cold storage pack 23 has a thin uneven shape.

Further, in the cold storage pack 23, the concave portions 231a and 231a of the two concave and convex surfaces 231 and 231 and the central portion 230a of the two side surfaces 230 and 230 to which the concave portions 231a and 231a are connected are located at other portions. It is formed thicker than that. Specifically, the recess 231a
And the thickness of the side center portion 230a is 1.0 to 1.5 m.
m, the thickness of the convex portion 231b is 0.4 to 0.7 mm, and the thickness of the slope portion 231c connecting the concave portion 231a and the convex portion 231b is 0.5 to 1.0 mm of an intermediate value. You have set.

Therefore, the thickness of the cold storage pack 23 is
31a> slope portion 231c> projection portion 231b. Then, as shown in FIG. 5, the thinnest convex portion 231 b is in close contact with the tube uneven surface of the evaporator 10, thereby improving the heat transfer between the evaporator 10 and the cold storage pack 23. Further, as described above, of the cold storage pack 23, the concave portions 231a and 231a of the concave and convex surfaces 231 and 231 and the side surface 23 to which the concave portions 231a and 231a are connected.
Since the central portion 230a of each of the 0 and 230 is formed thicker than the other portions, the column structure can be formed in the cold storage pack 23 in the vertical direction by the thick portions. The mesh part in FIG. 7 shows a column structure part by the thick part.

As described above, by forming the column structure with the thick portion over the entire length of the cold storage pack 23 in the vertical direction, the uneven shape is effectively reinforced, so that the cold storage material such as water is stored in the cold storage pack 23. Cool storage pack 2 even if stored
The lower part of 3 does not swell due to the weight of the cold storage material. The cold storage pack 23 is formed by a resin blow molding method, and as shown in FIG.
By using 00 and 101, a concave / convex forming space 102 corresponding to the concave / convex shape of the cold storage pack 2 is formed. Blow mold 10
0 and 101 are provided with air vent holes 103 for sucking air by applying a negative pressure.

In the molding space 102, a tubular resin base material (polyethylene) 104 having only an upper end opened is disposed.
Here, the thickness of the base material 104 is 1.0 to 1.5 mm. Thereafter, an air pressure pressurized to a predetermined pressure is applied from the opening at the upper end of the base material 104 to inflate the base material 104 along the above-described uneven forming space 102, so that the cold storage pack 23 having the uneven shape is formed. Molding.

At the time of this blow molding, since the concave portion 231a of the uneven surface 231 hardly expands from the tubular resin base material 104, the thickness (1.0 to 1.5 mm) of the base material 104 is maintained as it is. On the other hand, the convex portion 231b of the uneven shape expands until it comes into contact with the inner surfaces of the blow molds 100 and 101, and thus becomes thinner than the thickness of the base material 104. In this manner, the cold storage pack 23 having the uneven shape set to the above-described thickness can be formed.

Next, the structure for assembling the cool storage evaporator 10 and the cool storage pack 23 in the case 17 will be described. As shown in FIG. , 10e. The side plates 10d and 10e are formed with a concave portion 10f for forming an air layer to enhance the heat insulating effect. A resin holding plate 10g that fits and holds the U-shaped bent portion of the flat tube 10a is disposed above the evaporator 10. A flat tube 1 is provided below the evaporator 10.
A support plate 10h made of resin for fitting and holding the U-shaped bent portion 0a is arranged. The support plate 10h also serves as a drain pan for receiving drain water generated in the evaporator 10, and has a drain water discharge hole (not shown).

On the other hand, a large number of ribs 17a (FIG. 4,
10) are integrally formed in a staggered manner, and the ribs 17a serve to hold the front and rear sides of the cool storage pack 23 to fix the cool storage pack 23. Further, the ribs 17a serve to supply the blowing air to the concave portions 231a of the cold storage pack 23.
Also plays a role of uniformly guiding the air flow path 24 formed by the air flow.

In FIG. 4, reference numeral 25 denotes an upper portion of the chamber 22, which is a communication port provided on the rear wall side of the case 17, and communicates the upper portion of the chamber 22 with the suction side of the blower 21. . Evaporator 10 and cool storage pack 2 constituting a cooler
3 is installed in substantially the entire area in the width direction of the case 17 (the left-right direction in FIG. 3).
7, the intake air uniformly flows into the air flow path 24 and exchanges heat with the cold storage material pack 23 in substantially the entire width of the case 17, so that heat exchange is performed. The area can be increased.

At the upper part of the front of the case 17, the control panel 2 for cooling the nap room is arranged adjacent to the side of the air outlet 19.
The control panel 26 is provided with the blower 2.
An operation lever and the like of the first speed control switch are provided. Next, the operation of the present embodiment in the above configuration will be described. When an air conditioner switch (not shown) is turned on while the truck is running (when the engine is operating), the electromagnetic clutch 1a is energized,
The compressor 1 is connected to a vehicle engine via an electromagnetic clutch 1a, and the compressor 1 is driven and operated by the engine.

The operation of the compressor 1 causes the refrigerant to circulate in the refrigeration cycle shown in FIG. That is, since the solenoid valve 4 is a normally open type, the refrigerant circulates through the solenoid valve 4 to the air conditioning refrigerant circuit 7, and the air blown by the blower of the air conditioning unit is cooled and dehumidified by the air conditioning evaporator 6. The air conditioning of the truck cab 12 is performed. At this time, the constant pressure expansion valve 9 of the cold storage refrigerant circuit 8
Keeps the valve closed because its downstream pressure does not drop below a predetermined pressure (for example, 1.0 kg / cm ² , evaporation temperature: −10 ° C. for refrigerant R134a).

When a regenerative switch (not shown) is turned on while the truck is running, an electromagnetic valve control circuit is started, and an energization signal is input from the control circuit to the electromagnetic valve 4 at predetermined time intervals. Close the valve for a short time at each time interval. Then, the refrigerant to the air-conditioning refrigerant circuit 7 is cut off, and the refrigerant storage operation of the cold storage refrigerant circuit 8
Is suddenly reduced to be equal to or lower than the predetermined pressure, and the constant pressure expansion valve 9 is opened. Since the opening of the constant pressure expansion valve 9 is intermittently performed only for a short period of time, the influence on the cooling operation of the air conditioning evaporator 6 is extremely small.

By the refrigerant supply by intermittent opening of the constant-pressure expansion valve 9, the cool storage evaporator 10 performs the cooling operation of the cool storage pack 23, freezes the cool storage material (water, etc.) in the cool storage pack 23 and cools. Keep it. At this time, since the convex portion 231b, which is the thinnest portion of the cool storage pack 23, is in contact with the uneven tube surface of the evaporator 10, the cool storage pack 23 can be efficiently cooled by the evaporator 10.

Further, during the cold storage, the cold storage material (water) freezes and expands in volume, but the thickness of the slope portion 231c is reduced by the concave portion 231.
a and the center of the side surface 230a, the slope portion 231c and the convex portion 231b expand relatively easily when the volume of the cold storage material (water) expands. 23 can be prevented from being damaged.

On the other hand, when the driver or the like takes a nap in the nap room 14 during the parking of the truck, the nap room cooling control panel 2
By operating the speed control lever of the blower 21 provided in 6, the blower 21 is operated using the vehicle-mounted battery as a power supply. Then, the blast air flows through the case 17 of the cooling unit 16 along the path indicated by the arrow shown in FIG. It exchanges heat and is cooled to become cool air, and blows out from the air outlet 19 into the napping room 14 through the communication port 25 and the air flow path 20 to cool the napping room 14.

The nap room can be cooled during parking until the cold storage material in the cold storage pack 23 is completely melted and the temperature rises. By the way, in the present invention, the air channel 24 is formed by making the regenerative pack 23 uneven, and the column structure formed by the thick part is formed over the entire length of the regenerative pack 23 in the vertical direction, so that the uneven shape is effectively reduced. The cold storage pack 23
Since the lower part of the storage unit does not expand due to the weight of the cold storage material, the air flow path 24 can be reliably secured for a long period of time, and the cooling performance of the cold storage type cooling unit 16 can be sufficiently exhibited. (Second Embodiment) In the first embodiment, the uneven surface 231 of the cold storage pack 23 is formed horizontally, but in the second embodiment, the uneven surface 231 is formed at a predetermined angle θ with respect to the horizontal plane as shown in FIG. By forming it inclining, drain water generated on the surface of the cold storage pack 23 during cooling in the nap room (during cooling) can be drained smoothly in the inclination direction of the uneven surface 231, and drainage of drain water can be improved. (Third Embodiment) As a countermeasure to absorb the volume expansion of the cold storage material due to freezing during cold storage, as shown in FIG.
%, And the cold storage material may be injected into the pack 23 in this reduced state. The volume reduction of the cool storage pack 23 is performed by, for example, the cold storage pack 2.
The case formed beforehand in a volume of about 90 to 95% of the normal state of No. 3 is prepared in advance, and the cold storage pack 2 is placed in this case.
3 may be stored.

In FIG. 12, reference numeral 232 denotes a cool storage material inlet provided on the upper part of the cool storage pack 23, and 233 denotes a lid for sealing the inlet 232. (Fourth Embodiment) As shown in FIG. 13, a projection 231d is provided in each recess 231a of the cool storage pack 23, and the recess 231a can be easily expanded as shown by a broken line by the projection 231d. Can absorb the volume expansion of the cold storage material. (Fifth Embodiment) As shown in FIG. 14, an inlet 232 is provided at a position slightly lower than the uppermost portion of the cold storage pack 23, and a space always remains at the uppermost portion inside the cold storage pack 23 when the cold storage material is injected. Thus, the volume expansion of the cold storage material due to the freezing during the cold storage may be absorbed.

In the present embodiment, a substantially semi-cylindrical projection 231 is formed at the recess 231 a located immediately below the injection port 232.
e, the cross-sectional area of the concave portion 231a is increased by the protruding portion 231e, so that a cold storage material injection nozzle can be inserted near the bottom of the cold storage pack 23, and the cold storage material can be injected near the bottom of the cold storage pack 23. Therefore, the air in the cold storage pack 23 easily floats. Therefore, the cold storage pack 23
The speed of injecting the cold storage material into the storage material can be improved, and the productivity of the cold storage material injection operation can be increased.

The present invention can be implemented in various modes other than the illustrated embodiment described above. For example, in a vehicle such as a one-box car other than a truck, the engine is stopped when the space in the rear of the vehicle compartment is parked. The apparatus of the present invention may be used for cooling and cooling. In addition, as the evaporator 10, in addition to the type in which the flat tube 10a is bent in a meandering shape, a number of linear flat tubes 10a are arranged in parallel, and refrigerant inlets are provided at both ends of the parallel arranged flat tubes 10a. A type provided with an outlet tank (generally called a multi-flow type) may be used.

Further, since unpleasant odors and molds may be generated due to moisture and the like remaining on the surface of the cool storage packs 23, as a countermeasure for preventing the generation of such unpleasant odors and molds, the cool storage packs 23 are used.
May be molded with a resin containing a "mold preventive agent".

[Brief description of the drawings]

FIG. 1 is a cycle diagram showing a refrigeration cycle in a first embodiment of the present invention.

FIG. 2 is a schematic explanatory view showing an installation form of a cooling unit according to one embodiment of the present invention.

FIG. 3 is a partially cutaway front view of the cooling unit of FIG. 2;

FIG. 4 is a sectional view of the cooling unit of FIG. 3;

FIG. 5 is a front view showing an assembling relationship between a cool storage evaporator and a cool storage pack in the cooling unit.

FIG. 6 shows a cold storage pack of the device of the present invention, wherein (a)
Is a sectional view taken along the line II of FIG. 2B, FIG. 2B is a partial perspective view, and FIG.
FIG. 3B is a cross-sectional view of FIG.

FIG. 7 is an explanatory view illustrating a reinforcement structure of a cold storage pack of the device of the present invention.

FIG. 8 is a schematic explanatory view showing a blow molding method of a cold storage pack of the apparatus of the present invention.

FIG. 9 is an exploded perspective view showing a method of assembling the cool storage evaporator of the apparatus of the present invention. You.

FIG. 10 is a perspective view of a cold storage evaporator showing a fixing method of the cold storage pack of the device of the present invention.

FIG. 11 is a partial perspective view of a cool storage pack according to a second embodiment of the present invention.

FIG. 12 is a partial side view of a cool storage pack according to a third embodiment of the present invention.

FIG. 13 is a partial side view of a cool storage pack according to a fourth embodiment of the present invention.

FIG. 14 is a partial perspective view of a cool storage pack according to a fifth embodiment of the present invention.

FIG. 15 is a front view showing an assembling relationship between a conventional cool storage evaporator and a cool storage pack.

FIG. 16 is an explanatory diagram for explaining a problem caused by a conventional cold storage pack.

FIG. 17 is a front view showing another example of an assembling relationship between a conventional cool storage evaporator and a cool storage pack.

[Explanation of symbols]

10 evaporator for cold storage, 14 nap room, 16 cooling unit, 23 cool pack, 24 air flow path, 2
30 side surface, 230a central part, 231 uneven surface, 231a concave part, 231b convex part, 231c
... Slope part, 231d ... Projection, 231e ... Projection part.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takashi Tanaka 1-1-1, Showa-cho, Kariya-shi, Aichi Japan Inside Denso Co., Ltd. (72) Inventor Sugi Hikari 1-1-1, Showa-cho, Kariya-shi, Aichi Japan Nihon Denso Co., Ltd. Examiner: Sano Shun (56) References JP-A-62-149509 (JP, A) JP-A-2-68214 (JP, A) JP-A-62-20909 (JP, U) JP-A-4-101707 ( JP, U) JP-A 56-161466 (JP, U) JP-A 1-121397 (JP, U) JP-A 2-13966 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B60H 1/32 613 F25D 3/00 B60H 1/00 F24F 5/00 102 F28D 20/00 B60H 1/32 614 B60H 1/32 621 B60H 1/00 102

Claims (6)

(57) [Claims] 1. A cold storage means in which a cold storage material is accommodated inside a resin-made pack-shaped member vertically elongated in the vertical direction, a cooling means for cooling the cold storage means, and a heat exchange means formed to be heat-exchangeable with the cold storage means. An air flow path, and air blowing means for blowing air into the air flow path and blowing cold air cooled by the cold storage means to a portion to be cooled, wherein the pack-shaped member extends substantially linearly in the vertical direction. A side surface and two concave and convex surfaces extending in an uneven shape in the vertical direction and connecting between the two side surfaces, further comprising a concave portion of the two concave and convex surfaces in the pack-shaped member, and a concave portion connected to the concave portion; The central portion of the two side surfaces to be formed is formed thicker than other portions, and the convex portions of the two concave and convex surfaces of the pack-shaped member are in close contact with the cooling means, The concave portion of the two concave and convex surfaces and the cooling hand Cold storage type cooling unit, characterized in that said air flow passage is formed between the. 2. The regenerative cooling device according to claim 1, wherein the uneven surface is formed to be inclined with respect to a horizontal direction. 3. An uneven surface is formed on the uneven surface between the convex portion and the concave portion, and the thickness of the inclined portion is set to an intermediate value between the thicknesses of the convex portion and the concave portion. The regenerative cooling device according to claim 1 or 2, wherein: 4. The regenerative cooling system according to claim 1, wherein a projection is formed in the concave portion of the concave-convex surface so that a cold storage material injection nozzle can be inserted. apparatus. 5. The regenerative cooling device according to claim 1, wherein a protrusion is formed in the recess to facilitate bulging of the recess. 6. A resin-made pack-shaped member which is formed vertically and stores a cold storage material therein, wherein the pack-shaped member has two side surfaces extending substantially linearly in the longitudinal direction, and And two concave and convex surfaces extending between the two side surfaces and extending in the concave and convex direction, and the concave portion of the two concave and convex surfaces of the pack-shaped member, and the concave portion being connected to the concave portion. A cold storage pack characterized in that a central portion of two side surfaces is formed thicker than other portions.