JPH08175167A - Regenerating type air conditioner - Google Patents

Abstract

PURPOSE: To prevent a film shaped regenerating pack made of resin from being deformed due to the weight of regenerating material such as water with no special spacer used. CONSTITUTION: A regenerating pack 23 is formed lengthwise in the vertical direction, concurrently the regenerating pack 23 is provided with two side surfaces 230 linearly extended in the vertical direction, and these two side surfaces 230 are connected with each other with a space held by a recessed and projection surface 23 extended in the vertical direction. Each recessed section 231a of the recessed and projection surface 231 and each center area 230a of the side surfaces 230 are formed to be thicker than the other portions, and its recessed and projection shape is reinforced by these thickened sections so as to be retained, so that a column structure is thereby formed.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as a cool storage type cooling device for cooling a nap room of a vehicle, a device disclosed in Japanese Patent Laid-Open No. 62-149509 has been known. , A nap chamber is formed, a cooling unit is provided on the rear wall surface of the nap chamber, an inlet is provided at the lower part of the cooling unit, and an outlet is provided at the upper part.
Furthermore, a regenerator and a blower are installed inside it.

The cold storage cooler comprises a refrigerant evaporator provided in a vehicle air-conditioning refrigeration cycle and a cold storage material that is cold stored in the evaporator. The cold evaporator is used by the refrigerant evaporator when the truck is running. And cool the regenerator material,
Then, when the driver takes a nap in the nap room when the truck is stopped, the blower is operated to blow air to the air flow path of the regenerator material, and heat is exchanged between the regenerator material and the blast air to blow air. The air is cooled and the cooled air is blown out from the air outlet into the nap room.

By the way, as shown in FIG. 15, the regenerator is composed of an evaporator 1 formed of a multi-hole flat tube bent in a meandering shape, and a bag-shaped regenerator pack 2. The cold storage pack 2 is attached to the flat surface of the tube of the evaporator 1, and air is blown to the air passage 3 between the cold storage packs 2 to cool the blown air by the cold storage pack 2. I am trying.

[0005]

The cold storage pack 2 is
It consists of a thin film pack to improve heat transfer and to absorb the expansion of the regenerator material stored in it when it freezes.The regenerator material in the bottom of the pack depends on the weight of the regenerator material inside. As a result, the cold storage packs 2 are gathered and deformed into a shape that bulges downward as shown in FIG. 16, and as a result, it takes time to freeze to the inside of the bulging portion on the lower side of the cold storage packs 2 during cold storage. There are cases where it cannot be frozen.

On the other hand, even when the inside of the lower bulging portion of the cold storage pack 2 can be frozen, conversely during cooling (during cooling), the lower bulging portion of the cold storage pack 2 is frozen inside. There is a problem that it takes time to melt and the cold storage capacity cannot be used effectively. In addition, there is a problem that the bulging portion on the lower side of the cold storage pack 2 blocks the lower portion of the air passage 3 to remarkably reduce the air volume during cooling.

Therefore, as shown in FIG. 17, conventionally, in order to prevent the deformation of the regenerator pack 2, resin honeycomb spacers 4 are arranged between the regenerator packs 2, and the spacers 4 are used for air passages. Although it has been proposed to secure the number 3, in this configuration, since the resin-made honeycomb-shaped spacer 4 must be specially manufactured,
There is a problem in that the cost is increased due to an increase in the number of parts, and the assembly workability is deteriorated due to the addition of the spacer 4.

The present invention has been made in view of the above points,
The purpose is to prevent deformation of the cold storage pack without adding a spacer.

[0009]

The present invention employs the following technical means in order to achieve the above object. According to the first aspect of the present invention, a cool storage means for storing the cool storage material inside the resin-made pack-like member (23) formed vertically in the vertical direction, a cooling means (10) for cooling the cool storage means, and An air flow path (24) formed to be capable of exchanging heat with the cool storage means (10), and a blower means (21) for sending air to the air flow path (24) and blowing out the cool air cooled by the cool storage means to a cooling target site. ), The pack-like member (23) extends in a straight line in the vertical direction, and two side faces (230) that extend in a vertical direction in a concavo-convex shape to connect the two side faces (230). And two concave and convex surfaces (231) of the pack-shaped member (23).
31), and the recess (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 portion (231b) of 31) is in close contact with the cooling means (10), and the concave portion (231a) of the two concave and convex surfaces (231) of the pack-shaped member (23) and the cooling means (10).
It is characterized by a cold storage type cooling device in which the air flow path (24) is formed between and.

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

According to a fourth aspect of the invention, in the regenerative cooling apparatus according to any one of the first to third aspects, a regenerator material injection nozzle is inserted into the concave portion (231a) of the uneven surface (231). It is characterized in that a projecting portion (231e) that enables it is formed. According to the invention of claim 5,
The regenerative cooling device according to any one of claims 1 to 4, wherein the recess (231a) is provided with the recess (23).
It is characterized in that a protrusion (231d) for facilitating the bulge of 1a) is formed.

According to the sixth aspect of the present invention, the resin-made pack-like member (23) is formed vertically and accommodates the regenerator material therein, and the pack-like member (23) is
Two side surfaces (23
0) and two concavo-convex surfaces (231) extending in the longitudinal direction in a concavo-convex shape and connecting the two side surfaces (230), and further, of the pack-shaped member (23), The concave portion (231a) of the two concave and convex surfaces (231), and the two side surfaces (23) to which the concave portion (231a) is connected.
The cold storage pack is characterized in that the central portion (230a) of 0) is thicker than other portions.

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

[0014]

According to the inventions of claims 1 to 6,
The pack-shaped member for accommodating the cold storage material is provided with two side surfaces that extend substantially linearly in the vertical direction and two concave and convex surfaces that extend in the vertical direction in a concave-convex shape and connect between the two side surfaces. Since the concave portions of the one concave-convex surface and the central portions of the two side surfaces to which the concave portions are connected are made thicker than other portions, the thick-walled portion can effectively reinforce the concave-convex shape. Therefore, even if the cool storage material is stored, the lower part of the pack-shaped member does not swell due to the weight of the cool storage material.

Therefore, it is possible to prevent the pack-shaped member (cold storage pack) from being deformed without using a conventional spacer, and it is possible to achieve a good cooling function by allowing the cold storage material to cool. Moreover, the cost can be reduced by eliminating the conventional spacers, and the workability of assembling the pack-shaped member can be improved. Furthermore, since the cold storage material can be cooled by closely disposing the convex portion, which is the thin portion, on the cooling means, it is possible to improve heat transfer between the cold storage material and the cooling means. It is possible to efficiently store the cold in the cold storage material.

In addition to the above function and effect, in the invention according to claim 2, since the uneven surface is formed to be inclined with respect to the horizontal direction, the drain water generated by cooling the regenerator material during cooling is uneven. Drains smoothly along the slope of the surface.
In the invention according to claim 3, an inclined surface portion is formed between the convex portion and the concave portion of the uneven surface, and a thickness of the inclined surface portion is set to an intermediate value between the convex portion and the concave portion. Therefore, the sloped portion and the convex portion can swell relatively easily when the volume of the regenerator material expands, and damage to the pack-shaped member due to the volume expansion of the regenerator material can be prevented.

Further, in the invention of claim 5, since the protrusion is formed in the recess to facilitate the expansion of the recess, damage to the pack-shaped member due to volume expansion of the regenerator material is caused by the expansion of the recess. It can be prevented. In the invention according to claim 4, a protrusion is formed in the recess 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 by using the protruding portion, the air inside the pack-shaped member can be easily floated, and the speed of injection of the cool storage material into the pack-shaped member can be increased. Therefore, the productivity of the cold storage material injection work can be improved.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 shows a refrigeration cycle in the case where the present invention is applied to a cold storage type cooling device for a nap room for a truck. Reference numeral 1 denotes a compressor, which is provided by a running engine (not shown) of the truck. It is adapted to be driven via the electromagnetic clutch 1a. Reference numeral 2 is a condenser for cooling and condensing the high-temperature, high-pressure gas refrigerant discharged from the compressor 1, and 3 is a liquid receiver for accumulating the liquid refrigerant condensed in the condenser 2 and for discharging only the liquid refrigerant.

Reference numeral 4 is a normally open solenoid valve for intermittently flowing the refrigerant flow,
Reference numeral 5 is a temperature-operated expansion valve as a pressure reducing means for decompressing and expanding the liquid refrigerant, and 5a is a temperature-sensitive cylinder thereof. Reference numeral 6 denotes a refrigerant evaporator for air conditioning of a driver's cab of a truck, which is installed in an air conditioning unit (not shown) arranged below the instrument panel in front of the driver's cab of the truck. Air is blown into the air conditioning unit by a blower (not shown), and the blown air is cooled by the evaporator 6 and then blown out into the passenger compartment through a heater unit (not shown) and an outlet mechanism.

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

Reference numeral 10 denotes a cold storage refrigerant evaporator (cooling means, cooling heat exchanger) for storing cold in a nap room installed at the rear of the cab of the truck. The evaporator 10 is installed in the case of the cooling unit installed in this nap room. 1
Reference numeral 1 is a check valve, from the side of the air conditioning evaporator 6 to the cool storage evaporator 10
The high temperature refrigerant is prevented from flowing backward to the cool storage evaporator 10
The refrigerant flows only in one direction from the upstream side to the downstream side.

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

As shown in FIGS. 3 and 4, the cooling unit 16 has a resin case 17 which is vertically long and is formed in a thin rectangular parallelepiped shape. A suction port 18 for sucking air is provided. As shown in FIG. 3, the suction port 18 is composed of a large number of small holes, and the holes are formed over substantially the entire area of the cooling unit 16 in the front width direction.

A lattice-shaped outlet 19 is provided in the upper part of the case 17 to blow cold air toward a side wall (not shown) on the other end side in the vehicle width direction. An air flow path 20 communicating with the air 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 passage 20
Is arranged. A chamber 22 for installing a cooler is sectioned and formed in a lower portion of the air flow path 20, and the cool storage refrigerant evaporator 10 and the cool storage pack 23 cooled by the evaporator 10 are provided in the chamber 22. Is installed.

Here, the evaporator 10 is constructed by using a multi-hole flat tube 10a (see FIG. 5) made of aluminum in this example. This multi-hole flat tube 10a is formed in a flat cross section having a width dimension equivalent to the width dimension L (see FIGS. 4 and 6) of the regenerator pack 23, and as is well known, many refrigerant passage holes are formed in parallel. 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 the vertical (up and down) direction. 10b and 10c are refrigerant inlet and outlet pipes.

A cold storage pack 23 is arranged so as to be in close contact with the flat surfaces on both the left and right sides of the flat tube 10a of the refrigerant evaporator 10. As shown in the figure, the cold storage pack 23 is formed in a vertically long uneven shape in the vertical direction,
A thin pack-shaped (bag-shaped) member formed of resin is filled with water or a soft gel-like cold storage material.

Further, as the material of the pack 23, a material that is easily thinned, such as polyethylene or nylon, is preferable in order to improve the heat exchange property with the blown air. In FIGS. 3 and 5, reference numeral 24 denotes an air flow path formed between the concave portion of the uneven cool storage pack 23 and the flat tube 10 a of the refrigerant evaporator 10. Arrow A in FIG. 4 shows the flow of air passing through the air flow path 24.

The present invention is characterized by the form of the cold storage pack 23, and the specific form of the pack 23 will be described in detail below 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, 230 have a shape in which two uneven surfaces 231 and 231 extending in a vertical direction in an uneven shape are connected to each other. Here, the width L of the two concavo-convex surfaces 231, 231 is sufficiently larger than the width of the side surfaces 230, 230, and the cold storage pack 23 has a thin concavo-convex shape.

Further, in the cold storage pack 23, the concave portions 231a, 231a of the two concave-convex surfaces 231, 231 and the central portion 230a of the two side surfaces 230, 230 to which the concave portions 231a, 231a are connected are in other portions. In comparison, it is thicker. Specifically, the recess 231a
And the thickness of the side surface central 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, which is an intermediate value. It is set.

Therefore, the thickness of the cold storage pack 23 is equal to that of the recess 2
31a> the slope 231c> the convex 231b. Then, the thinnest convex portion 231b is brought into close contact with the tube flat surface of the evaporator 10 as shown in FIG. 5, so that the heat transfer between the evaporator 10 and the cold storage pack 23 is improved. Further, in the cold storage pack 23 as described above, the concave portions 231a and 231a of the concave and convex surfaces 231, 231 and the side surface 23 to which the concave portions 231a and 231a are connected.
Since the central portion 230a of 0, 230 is formed thicker than other portions, the column structure can be formed in the vertical direction in the cold storage pack 23 by the thick portion. The mesh portion in FIG. 7 shows a column structure portion having the thick portion.

As described above, by forming the column structure of 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. Cold storage pack 2 even if stored
The lower part of 3 does not bulge due to the weight of the regenerator material. The cold storage pack 23 is molded by a resin blow molding method, and as shown in FIG.
00 and 101 form an uneven molding space 102 corresponding to the uneven shape of the cold storage pack 2. 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 arranged.
Here, the thickness of the base material 104 is 1.0 to 1.5 mm. After that, by applying an air pressure pressurized to a predetermined pressure from the opening at the upper end of the base material 104, the base material 104 is expanded along the concave-convex molding space 102, whereby the cold storage pack 23 having the uneven shape is formed. Mold.

At the time of this blow molding, since the recess 231a of the uneven surface 231 hardly swells from the tubular resin base material 104, the wall thickness (1.0 to 1.5 mm) of the base material 104 is maintained as it is. On the other hand, the convex-concave portion 231b bulges until it contacts the inner surfaces of the blow molding dies 100 and 101, so that it becomes thinner than the base material 104. In this way, it is possible to form the cold storage pack 23 having an uneven shape having the above-mentioned relational wall thickness.

Next, the assembling structure of the cool storage evaporator 10 and the cool storage pack 23 in the case 17 will be described. As shown in FIG. 9, resin side plates 10d are provided on both left and right sides of the evaporator 10. 10e are arranged. The side plates 10d and 10e are provided with recesses 10f that form an air layer to enhance the heat insulating effect. Further, on the upper side of the evaporator 10, a resin holding plate 10g for fitting and holding the U-shaped bent portion of the flat tube 10a is arranged. The flat tube 1 is provided below the evaporator 10.
A resin-made support plate 10h for fitting and holding the U-shaped bent portion of 0a is arranged. The support plate 10h also serves as a drain pan for receiving drain water generated in the evaporator 10, and a drain water discharge hole (not shown) is opened.

On the other hand, a large number of ribs 17a (FIG. 4, FIG.
(See FIG. 10) is integrally formed in a zigzag shape, and the rib 17a plays a role of pressing the front surface side and the rear surface side of the cold storage pack 23 to fix the cold storage pack 23. Further, the rib 17a is provided with a concave portion 231a of the cold storage pack 23 for blowing air.
Also plays a role of uniformly guiding the air flow path 24 formed by.

In FIG. 4, reference numeral 25 denotes an upper portion of the chamber 22, which is a communication port provided at a rear wall surface side of the case 17, and which connects the upper portion of the chamber 22 to the suction side of the blower 21. . Evaporator 10 and cool storage pack 2 which constitute a cooler
3 is installed in substantially the entire width direction of the case 17 (left-right direction in FIG. 3), the suction port 18 is also the case 1 as described above.
Since the intake air is evenly flowed into the air flow path 24 and is heat-exchanged with the cold storage material pack 23 in substantially the entire width direction of the case 17, the heat exchange is performed. The area can be increased.

A control panel 2 for cooling the nap room is provided on the upper part of the front surface of the case 17 so as to be adjacent to the side of the air outlet 19.
6 is installed, and the blower 2 is installed on the control panel 26.
An operation lever of the speed control switch No. 1 is provided. Next, the operation of this embodiment with the above configuration will be described. When an air conditioner switch (not shown) is turned on while the truck is running (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.

By the operation of the compressor 1, the refrigerant circulates in the refrigeration cycle of FIG. That is, since the solenoid valve 4 is of the normally open type, the refrigerant circulates through the solenoid valve 4 to the air conditioning refrigerant circuit 7, and the blower air of the air 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, in the case of the refrigerant R134a, 1.0 Kg / cm ² , evaporation temperature: −10 ° C.).

When the cold storage switch (not shown) is turned on while the truck is running, the solenoid valve control circuit is started, and an energization signal is input from the control circuit to the solenoid valve 4 at a predetermined time interval, so that the solenoid valve 4 is set to the predetermined state. It closes for a short time at each time interval. Then, the refrigerant to the air-conditioning refrigerant circuit 7 is cut off, so that the refrigerant storage operation of the compressor 1 causes the refrigerant storage circuit 8 to cool.
The pressure decreases rapidly to the predetermined pressure or less, and the constant pressure expansion valve 9 opens. Since the constant pressure expansion valve 9 is opened intermittently only for a short time, the influence on the cooling action of the air conditioning evaporator 6 is extremely small.

The cool storage evaporator 10 serves to cool the cold storage pack 23 by supplying the refrigerant by intermittently opening the constant pressure expansion valve 9 to freeze the cold storage material (water or the like) in the cold storage pack 23 to store the cold. Keep it. At this time, since the convex portion 231b, which is the thinnest portion of the cold storage pack 23, contacts the tube flat surface of the evaporator 10, the cold storage pack 23 can be efficiently cooled by the evaporator 10.

Further, during the above cold storage, the cold storage material (water) freezes and expands in volume, but the wall thickness of the slope portion 231c is reduced to the concave portion 231.
Since the slope portion 231c and the convex portion 231b are formed to be thinner than the a and the side surface central portion 230a, the cold storage material (water) is expanded relatively easily when the cold storage material (water) is expanded in volume. 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 while the truck is parked, the control panel 2 for cooling the nap room is provided.
6 operates the speed control lever of the blower 21 to operate the blower 21 using the vehicle-mounted battery as a power source. Then, the blast air flows in the case 17 of the cooling unit 16 along the path shown by the arrow in FIG. 4, and when the blast air passes through the air flow path 24 between the cold storage pack 23 and the evaporator 10, The heat is exchanged, the air is cooled and becomes cold air, and the air blows out from the air outlet 19 into the nap chamber 14 through the communication port 25 and the air flow path 20 to cool the nap chamber 14.

Until the cold storage material in the cold storage pack 23 is completely melted and the temperature rises, the nap room can be cooled during parking. By the way, according to the present invention, the cold storage pack 23 is formed into a concavo-convex shape to form the air flow path 24, and the column structure having the thick portion described above is formed over the entire length in the up-and-down direction of the cold storage pack 23, thereby providing the concavo-convex shape. Can be reinforced as a result, and as a result, the cold storage pack 23
Since the lower part of the cold storage material does not swell 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 exhibited well. (Second Embodiment) In the first embodiment, the uneven surface 231 of the cold storage pack 23 is formed horizontally, but in the second embodiment, as shown in FIG. 11, the uneven surface 231 is formed at a predetermined angle θ with respect to the horizontal plane. By forming the slant, drain water generated on the surface of the cold storage pack 23 during cooling of the nap room (during cooling) can be smoothly drained in the inclination direction of the uneven surface 231, and drainage performance of the drain water can be improved. (Third Embodiment) As a measure for absorbing the volume expansion of the cold storage material due to freezing during cold storage, as shown in FIG. 12, the volume of the cold storage pack 23 is 90 to 95 in the normal state when the cold storage material is injected.
The size may be reduced to a size of about%, and the regenerator material may be injected into the pack 23 in this reduced state. The volume reduction of the cold storage pack 23 is performed by, for example, the cold storage pack 2
A case formed in a volume of 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 is a regenerator material inlet provided in the upper part of the regenerator pack 23, and 233 is 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 cold storage pack 23, and the projection 231d allows the recess 231a to easily inflate as shown by the broken line, and freezes during cold storage. The volume expansion of the regenerator material can be absorbed. (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 so that a space portion always remains at the uppermost portion inside the cold storage pack 23 when the cold storage material is injected. In this way, the volume expansion of the cold storage material due to freezing during cold storage may be absorbed.

Further, in this example, a substantially semi-cylindrical protrusion 231 is formed in the recess 231a located immediately below the inlet 232.
e is formed, and the projection 231e increases the cross-sectional area of the recess 231a so that the nozzle for injecting the cold storage material can be inserted up to 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 cold storage material can be improved, and the productivity of the cold storage material injection work can be increased.

The present invention can be implemented in various modes other than the illustrated embodiment. For example, in addition to a truck, in a vehicle such as a one-box car, the engine is stopped when the space behind the passenger compartment is parked. The device of the present invention may be used for applications such as cooling. In addition to the type in which the flat tubes 10a are bent in a meandering shape as the evaporator 10, a large 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 having an outlet tank (generally called a multi-flow type) may be used.

Further, since moisture or the like remaining on the surface of the cold storage pack 23 may cause an offensive odor, mold, etc., as a measure for preventing the occurrence of the offensive odor, mold, etc., the cold storage pack 23
May be molded with a resin containing a "mold inhibitor".

[Brief description of 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 an embodiment of the present invention.

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

4 is a cross-sectional view of the cooling unit of FIG.

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

FIG. 6 shows a cold storage pack of the device of the present invention, (a)
Is a sectional view taken along the line YY of (b), (b) is a partial perspective view, and (c).
FIG. 7B is a sectional view taken along the line A-A in FIG.

FIG. 7 is an explanatory view for explaining the reinforcing structure of the cold storage pack of the device of the present invention.

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

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

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

FIG. 11 is a partial perspective view of a cold storage pack showing a second embodiment of the device of the present invention.

FIG. 12 is a partial side view of a cold storage pack showing a third embodiment of the device of the present invention.

FIG. 13 is a partial side view of a cold storage pack showing a fourth embodiment of the device of the present invention.

FIG. 14 is a partial perspective view of a cold storage pack showing a fifth embodiment of the device of the present invention.

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

FIG. 16 is an explanatory diagram illustrating a problem with a conventional cold storage pack.

FIG. 17 is a front view showing another example of the assembly relation between the conventional cold storage evaporator and the cold storage pack.

[Explanation of symbols]

10 ... Evaporator for cold storage, 14 ... Nap room, 16 ... Cooling unit, 23 ... Cold storage pack, 24 ... Air flow path, 2
30: side surface, 230a: central portion, 231: uneven surface, 231a: concave portion, 231b: convex portion, 231c ...
... Slope surface portion, 231d ... Protrusion, 231e ... Projection portion.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yuichi Shirota, 1-1, Showa-cho, Kariya city, Aichi Prefecture, Nihon Denso Co., Ltd. (72) Inventor, Nao, Tanaka, 1-1, Showa-cho, Aichi prefecture, Nippon Denso Co., Ltd. Incorporated (72) Inventor Sugimitsu 1-1, Showa-cho, Kariya city, Aichi Prefecture

Claims (6)

[Claims] 1. A cool storage means for storing a cool storage material inside a resin-made pack-shaped member that is vertically long in the vertical direction, a cooling means for cooling the cool storage means, and a heat exchange means for exchanging heat with the cool storage means. An air flow path, and an air blowing means that blows air to the air flow path and blows the cool air cooled by the cool storage means to a cooling target portion. The pack-shaped member has two linearly extending in the vertical direction. It has a side surface and two concavo-convex surfaces that extend in a concavo-convex shape in the vertical direction and connect between the two side surfaces. Further, in the pack-shaped member, the concavities of the two concavo-convex surfaces and the concavity are connected The central portion of the two side surfaces to be formed is formed thicker than other portions, the convex portions of the two uneven surfaces of the pack-shaped member are in close contact with the cooling means, and the pack-shaped member 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 regenerator-type cooling device according to claim 1, wherein the uneven surface is formed to be inclined with respect to the horizontal direction. 3. The uneven surface is formed with a slope portion between the convex portion and the concave portion, and the thickness of the slope portion is set to an intermediate value between the thicknesses of the convex portion and the concave portion. The regenerator type cooling device according to claim 1 or 2, characterized in that. 4. The regenerator type cooling apparatus according to claim 1, wherein a projecting portion into which a cool storage material injecting nozzle can be inserted is formed in the recessed portion of the uneven surface. apparatus. 5. The regenerative cooling apparatus according to claim 1, wherein the recess has a protrusion for facilitating the expansion of the recess. 6. A resin-made pack-shaped member that is vertically long and accommodates a regenerator therein, and the pack-shaped member has two side surfaces that extend substantially linearly in the vertically-long direction and the vertically-long side. Of the pack-shaped member, the recesses of the two concave and convex surfaces, and the concave portions to which the concave portions are connected. A regenerator pack characterized in that the central portions of the two side surfaces are formed thicker than the other portions.