JP7199900B2 - Heat exchanger using laminated material and its entrance/exit structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger using a laminated material having a laminated material in which a resin coating layer is laminated on a metal heat transfer layer as an outer packaging bag, and an entrance/exit structure thereof.

2. Description of the Related Art Hybrid electric vehicles (HEV), electric vehicles (EV), etc. are equipped with a battery device that supplies electric power for driving an electric motor. As such a battery device, a plurality of small single cells made up of various secondary batteries such as lithium secondary batteries are generally connected in series or in parallel to form an assembled battery. Especially in recent years, in order to extend the cruising distance of electric vehicles, a plurality of assembled batteries are combined in series or parallel to further increase the capacity of battery devices.

On the other hand, the performance and life of lithium secondary batteries, which are often used as battery devices, vary greatly depending on the operating temperature. Therefore, it is preferable to control the temperature at an appropriate temperature for efficient use over a long period of time. However, when used in the form of a plurality of assembled batteries as described above, since the plurality of assembled batteries are closely arranged, it is difficult to effectively dissipate the heat generated from each assembled battery or each unit cell. is difficult, and the temperature of each assembled battery rises, and there is a risk that the performance and life of the assembled battery will decrease.

Therefore, a technique has been developed in which a thin heat exchanger as shown in Patent Document 1 below is used to cool a plurality of assembled batteries. In this heat exchanger, two metal dish-shaped plates are opposed to each other to form a heat exchanger (flat tube). The heat generated from each unit cell is released to the outside through a coolant (cooling water) flowing through the flat tube.

Under such a technical background, heat exchangers for cooling a plurality of assembled batteries as an automobile battery device are required to be as thin, small and light as possible, and to be reduced in cost, as is the case with other automobile parts. As part of this, the adoption of heat exchangers using highly flexible laminated materials is being considered.

A heat exchanger using a laminated material is equipped with an outer bag in which two laminated materials, in which a resin coating layer is laminated on both sides of a heat transfer layer made of aluminum foil or an aluminum thin plate, are superimposed and joined in a bag shape. , the refrigerant can be circulated inside the outer envelope. An outer package bag is arranged between each of the plurality of assembled batteries, and the heat generated from each unit cell of the assembled battery is released to the outside through a coolant that flows inside each outer package bag.

In a heat exchanger using such a laminated material, an inlet/outlet member is attached to the inlet/outlet of the outer bag so that an outer pipe such as a refrigerant pipe can be reliably connected to the outer bag in order to allow the refrigerant to flow in and out from the inside of the outer bag. ing. For example, a pipe joint made of resin is often used as the inlet/outlet member, and a method of fixing the end of the pipe joint to the resin coating layer of the outer bag by thermocompression bonding or bonding is considered to be a normal fixing method.

JP 2012-199149 A

However, in the heat exchanger using the above-mentioned conventional laminated material, the outer bag is made of a laminated material having a lower strength than a metal plate or the like, and stress is concentrated around the joints of the pipe joints in the outer bag. Therefore, there is a risk that the joints of the pipe joints in the outer bag may break early, or the pipe joints may partially peel off from the outer bag, causing problems such as liquid leakage. It is difficult to maintain a stable mounting state for a long period of time, and it is difficult to obtain sufficient durability, resulting in a decrease in product value.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and enables a doorway member to be attached in a stable state for a long period of time, to obtain sufficient durability, and to improve product value. An object of the present invention is to provide a heat exchanger using a laminated material and its entrance/exit structure.

In order to solve the above problems, the present invention has the following means.

[1] Equipped with an outer wrapping bag formed by forming a bag-like outer wrapping laminate material in which a resin coating layer is provided on at least one side of a metal heat transfer layer, and through a doorway penetrating the outer wrapping laminate material, In a heat exchanger using a laminated material that allows a heat medium to flow in and out of the outer bag,
The entrance/exit is provided in the planar portion of the outer packet,
a first entrance/exit member having a flange portion having a higher strength than the outer wrapping laminated material provided at one end of a cylindrical penetrating cylinder portion;
a second doorway member having a ring-shaped flange portion having a higher strength than the outer wrapping laminated material,
The flange portion of the second doorway member is arranged at the entrance peripheral edge portion on one side of the outer wrapping laminate material, while the flange portion of the first doorway member is arranged at the entrance peripheral edge portion on the other side of the outer wrapping laminate material. The through cylinder portion is arranged to penetrate through the central holes of the entrance and the second entrance member, and the first and second entrance members are coupled, so that both flange portions of both the entrance and exit members are connected to the outer casing. A heat exchanger using a laminated material, characterized in that both entrance/exit members are fixed to the outer packaging bag in a state in which the entrance/exit peripheral edge of the laminate material is sandwiched.

[2] The heat exchanger using the laminated material according to the above item 1, wherein at least one of the first and second inlet/outlet members is made of metal.

[3] The heat exchanger using the laminated material according to [1] above, wherein at least one of the first and second inlet/outlet members is made of resin.

[4] The second inlet/outlet member is provided with a cylindrical coupling cylinder portion on one surface side of the flange portion thereof,
The laminate material according to any one of 1 to 3 above is used, wherein the through cylinder portion of the first doorway member is fitted into the coupling cylinder portion of the second doorway member, and both cylinder portions are joined. Heat exchanger.

[5] A heat exchanger using the laminate material according to any one of the preceding items 1 to 4, wherein the first and second inlet/outlet members are bonded to each other with an adhesive.

[6] Any one of the preceding items 1 to 5, wherein an adhesive is filled and sealed between the flange portion of at least one of the first and second doorway members and the peripheral edge of the doorway of the outer wrap laminate material. A heat exchanger using the laminate material according to item 1.

[7] The outer wrap laminate material is provided with the coating layers on both sides of the heat transfer layer,
Either one of the first and second inlet/outlet members is made of resin, and the flange portion of one of the inlet/outlet members and the inlet/outlet peripheral edge of the outer wrap laminate material are bonded by thermocompression bonding. A heat exchanger using the laminate material according to any one of the preceding items 1 to 5, which is sealed.

[8] A heat exchanger using the laminate material according to any one of the preceding items 1 to 7, wherein the heat transfer layer of the outer wrap laminate material is made of aluminum.

[9] A heat exchanger using the laminate material according to any one of the above items 1 to 8, which is used for cooling a heating element for a vehicle.

[10] Equipped with an outer wrapping bag formed by forming a bag-shaped outer wrapping laminate material in which a resin coating layer is provided on at least one side of a metal heat transfer layer, and through a doorway passing through the outer wrapping laminate material, In the entrance/exit structure of the heat exchanger using a laminated material that allows the heat medium to flow into and out of the outer bag,
The entrance/exit is provided in the planar portion of the outer packet,
a first entrance/exit member having a flange portion having a higher strength than the outer wrapping laminated material provided at one end of a cylindrical penetrating cylinder portion;
a second doorway member having a ring-shaped flange portion having a higher strength than the outer wrapping laminated material,
The flange portion of the second doorway member is arranged at the entrance peripheral edge portion on one side of the outer wrapping laminate material, while the flange portion of the first doorway member is arranged at the entrance peripheral edge portion on the other side of the outer wrapping laminate material. The through cylinder portion is arranged to penetrate through the central holes of the entrance and the second entrance member, and the first and second entrance members are coupled, so that both flange portions of both the entrance and exit members are connected to the outer casing. An inlet/outlet structure for a heat exchanger using a laminated material, characterized in that both inlet/outlet members are fixed to the outer bag while sandwiching the inlet/outlet peripheral edge of the laminated material.

According to the heat exchanger using the laminate material of the invention [1], both the entrance/exit members are sandwiched between the high-strength flange portions of the first and second entrance/exit members in a state in which the entrance/exit periphery of the outer wrapping laminate material is sandwiched from both the inner and outer sides. Since both flanges are joined together, the entrance/exit member can be stably attached to the entrance/exit periphery of the outer bag by supporting each other. As a result, it is possible to reliably prevent problems such as premature breakage of the outer wrapping laminate material and peeling of the entrance/exit member. Therefore, the doorway member can be attached in a stable state for a long period of time, sufficient durability can be obtained, and the product value can be improved.

According to the heat exchanger using the laminate material of the invention [2], since the entrance/exit member is made of metal with high thermal conductivity, heat is transferred through the metal entrance/exit member when thermocompression bonding or the like is performed. Heat can be efficiently transferred to the portion to be crimped (portion to be welded), and the thermocompression bonding can be performed smoothly.

According to the heat exchanger using the laminate material of the invention [3], since the inlet/outlet member is made of resin, the flange portion of the resin inlet/outlet member and the resin layer of the outer wrap laminate material are reliably heat-fused. can wear.

According to the heat exchanger using the laminate material of the invention [4], both the inlet/outlet members can be securely connected, and can be attached in a more stable state.

According to the heat exchanger using the laminate material of the invention [5], the two inlet/outlet members can be connected more reliably, and can be attached in a more stable state.

According to the heat exchanger using the laminated material of the inventions [6] and [7], it is possible to improve the sealing performance between the flange portion of the inlet/outlet member and the inlet/outlet peripheral edge portion of the outer wrapping laminated material.

According to the heat exchanger using the laminate material of the invention [8], the heat transfer layer is made of aluminum having high heat transfer properties, so that the cooling performance can be further improved.

According to the heat exchanger using the laminate material of the invention [9], it is possible to reliably cool the heating element for the vehicle.

According to the inlet/outlet structure of the heat exchanger using the laminate material of the invention [10], similar effects can be obtained as in the invention of the heat exchanger using the laminate material.

1A and 1B are diagrams schematically showing a heat exchanger using a laminated material according to a first embodiment of the present invention, FIG. 1A being a plan view and FIG. FIG. 2 is an exploded perspective view showing the vicinity of the entrance and exit of the heat exchanger using the laminate material of the first embodiment. FIG. 3 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of the heat exchanger using the laminate material of the first embodiment. FIG. 4 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material according to a second embodiment of the present invention. FIG. 5 is a cross-sectional view enlarging the vicinity of the entrance and exit of a heat exchanger using material according to the third embodiment of the present invention. FIG. 6 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material according to a fourth embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material according to a fifth embodiment of the present invention. FIG. 8 is an exploded perspective view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material, which is a modification of the present invention.

<First embodiment>
FIG. 1 is a diagram schematically showing a heat exchanger using the laminated material according to the first embodiment of the present invention, and FIG. FIG. 3 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of the heat exchanger using the laminate material of the first embodiment.

As shown in these figures, the heat exchanger using this laminated material is used for cooling a battery device that supplies electric power to drive an electric motor of an electric vehicle, etc. ing. The outer packaging bag 3 is formed by joining two outer packaging laminated materials 30, 30 together by thermocompression bonding (heat sealing) at their outer peripheral edges.

The outer wrapping laminate material 30 is a three-layer laminate material comprising a heat transfer layer 31 made of a metal foil or a thin metal plate, and thermoplastic resin covering layers 32, 32 laminated and integrated on both sides of the heat transfer layer 31. It is composed by

In this embodiment, the metal forming the heat transfer layer 31 is aluminum. In the present specification and claims, the term aluminum is used to mean not only pure aluminum but also aluminum alloys.

In the present embodiment, the thickness of the metal foil (aluminum foil) to the metal thin plate (aluminum thin plate) constituting the heat transfer layer 31 is preferably set to 8 μm to 500 μm, more preferably 20 μm to 200 μm. is good.

The resin forming the coating layer 32 is, for example, a polyolefin resin film such as polyethylene or polypropylene. In this embodiment, the coating layer 32 laminated on one side of the heat transfer layer 31 and the coating layer 32 laminated on the other side may be made of the same type of resin, or may be made of different types of resin. You can

Entrances and exits 35 , 35 are formed at both ends of the planar portion of the outer wrapping bag 3 so as to pass through the outer wrapping laminated material 30 . In this embodiment, a refrigerant as a heat medium flows into the outer bag 1 from one of the inlets 35, flows through the outer bag 3, and flows out from the other inlet 35. ing.

In this embodiment, fins 36 are accommodated in the coolant flow path inside the outer envelope 3 to improve heat exchange efficiency (see FIGS. 1(a) and 1(b)).

The entrance/exit 35 of the outer bag 3 is provided with first and second entrance/exit members (rim members) 1 and 2 . In the first embodiment, the first and second inlet/outlet members 1 and 2 are each made of a material having a higher strength than the outer package laminated material 30 that constitutes the outer package 3, such as high-density polyethylene or polypropylene. Each is composed of an integrally molded product of hard synthetic resin.

The first inlet/outlet member 1 includes a cylindrical penetrating cylinder portion 11 and a ring-shaped flange portion 12 integrally formed on the outer circumference of one end of the penetrating cylinder portion 11 so as to protrude in the outer diameter direction.

The second inlet/outlet member 2 includes a cylindrical connecting tube portion 21 and a ring-shaped flange portion 22 integrally formed on the outer periphery of one end of the connecting tube portion 21 so as to protrude in the outer diameter direction.

The inner diameter of the connecting cylindrical portion 21 of the second doorway member 2 is formed slightly larger than the outer diameter of the penetrating cylindrical portion 11 of the first doorway member 1, so that the penetrating cylindrical portion 11 of the first doorway member 1 is connected to the second doorway. It is constructed so that it can be fitted into the coupling tube portion 21 of the member 2 in a fitted state.

On the outer surface side of the outer wrapper 3, the flange portion 12 of the second inlet/outlet member 2 is arranged to face the peripheral edge portion of the inlet/outlet 35 in the outer wrap laminate material 30, and the connecting tubular portion 21 is arranged to protrude outward. be. In addition, from the inner surface side of the outer bag 3, the penetrating tubular portion 11 of the first inlet/outlet member 1 penetrates the inlet/outlet 35 of the outer wrap laminate material 30, and furthermore, the coupling tubular portion 21 of the second inlet/outlet member 2 (the central hole of the second inlet/outlet member 2). equivalent to). In this way, the peripheral edge portion of the entrance 35 of the outer wrap laminate material 30 is sandwiched between the flanges 12 and 22 of the first and second entrance/exit members 1 and 2, and both cylindrical portions 21 and 21 of the entrance/exit members 1 and 2 Both entrance/exit members 1 and 2 are adhesively bonded by an adhesive 51 applied between them. Further, an adhesive 52 applied between the flange portion 12 of the first doorway member 1 and the peripheral edge of the doorway of the outer wrap laminate material 30 seals the two, and the flange portion of the second doorway member 2 is sealed. 22 and the entrance/exit peripheral edge of the outer wrap laminate material 30 is sealed by an adhesive 52 applied therebetween.

In the heat exchanger using this laminated material, since the tubular portions 11 and 21 of the inlet/outlet members 1 and 2 are arranged in a state of protruding outward, the tubular portions 11 and 21 are used to Outer pipes such as refrigerant pipes are connected to the portions 11 and 21 . That is, the refrigerant pipes are connected by using the cylindrical portions 11 and 21 as pipe joints.

Refrigerant flows into the heat exchanger (outer bag 3) from one inlet/outlet 35 through the refrigerant pipe, flows through the inside of the outer bag 3, passes through the other inlet/outlet 35, and enters the refrigerant pipe. is flowed out through Heat is exchanged between the coolant circulated inside the outer bag 3 and a heating element such as an assembled battery placed in contact with the surface of the outer bag 3, and the heat generated from the heating element is released via the coolant. be done. As a result, a heat-generating body such as a vehicle battery device is cooled.

According to the heat exchanger using the laminate material of the present first embodiment having the above configuration, the peripheral edge portion of the inlet/outlet 35 of the outer wrap laminate material 30 constituting the outer wrap bag 3 is formed with a higher strength than the outer wrap laminate material 30 . 1 and the second doorway members 1 and 2 are sandwiched between the flanges 12 and 22 from both the inside and the outside. , the entrance/exit members 1 and 2 can be attached to the entrance/exit periphery of the outer bag 3 in a stable state. As a result, the load applied to the periphery of the entrance/exit members 1 and 2 in the outer wrap laminate material 30 is reduced, and the outer wrap laminate material 30 is broken or the entrance/exit members 1 and 2 are partially separated from the outer wrapper bag 3. Problems such as this can be reliably prevented. Therefore, the entrance/exit members 1 and 2 can be stably attached for a long period of time, sufficient durability can be obtained, quality can be reliably improved, and the product value can be significantly improved.

Further, in the heat exchanger using the laminate material of this embodiment, the adhesive 52 seals between the flanges 12 and 22 of the inlet/outlet members 1 and 2 and the peripheral edge of the inlet/outlet 35 in the outer package laminate material 30. As a result, the entrance/exit members 1 and 2 can be attached in a more stable state, and furthermore, the sealability (sealing property) between the flange portions 12 and 22 of the entrance/exit members 1 and 2 and the outer wrapping laminate material 30 is improved. can be sufficiently ensured, troubles such as liquid leakage can be prevented more reliably, and the product value can be further improved.

<Second embodiment>
FIG. 4 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material, which is a second embodiment of the present invention. As shown in the figure, in the heat exchanger using the laminated material of the second embodiment, the sealing means between the flanges 12, 22 of the inlet/outlet members 1, 2 and the outer wrapping laminated material 30 is the first It is different from the heat exchanger using the laminate material of the embodiment.

That is, in the heat exchanger using the laminated material of the second embodiment, the flanges 12 and 22 of the inlet/outlet members 1 and 2 and the resin coating layer 32 at the inlet/outlet periphery of the outer wrapping laminated material 30 are thermocompression bonded. The flanges 12 and 22 and the outer wrapping laminate material 30 are sealed by the jointed and integrated portion (welded portion 53) (heat-sealed).

In the heat exchanger using the laminate material of the second embodiment, the rest of the configuration is substantially the same as that of the first embodiment. Therefore, the same or corresponding parts are denoted by the same reference numerals, and redundant explanations are omitted. .

In the heat exchanger using the laminate material of the second embodiment, similarly to the above, the entrance/exit members 1 and 2 can be stably attached to the outer bag 3 for a long period of time, and the flanges of the entrance/exit members 1 and 2 can be attached. Since the sealability between the parts 12 and 22 and the outer wrap laminate material 30 can be ensured, sufficient durability can be obtained, and the product value can be improved.

In the second embodiment, the flanges 12, 22 and the It is preferable that the coating layer 32 of the outer laminate material 30 is made of the same kind of resin.

<Third Embodiment>
FIG. 5 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material according to a third embodiment of the present invention.

As shown in the figure, in the heat exchanger using the laminate material of the third embodiment, the first inlet/outlet member 1 is made of hard synthetic resin, and the second inlet/outlet member 2 is made of metal. . The flange portion 12 of the first doorway member 1 and the peripheral edge of the doorway of the outer wrap laminate material 30 are sealed by a thermally welded portion 53 by thermocompression bonding in the same manner as in the second embodiment. The gap between the flange portion 22 and the outer wrap laminate material 30 is sealed with an adhesive 52 as in the first embodiment.

Other configurations of the heat exchanger using the laminate material of the third embodiment are substantially the same as those of the above-described embodiment.

A heat exchanger using the laminate material of the third embodiment can also obtain the same effect as described above. Furthermore, in the heat exchanger using the laminate material of the third embodiment, since the second inlet/outlet member 2 is made of metal with high thermal conductivity, the second inlet/outlet member 2 allows the 1 Heat can be efficiently transmitted to the portion to be heat-sealed between the flange portion 12 of the inlet/outlet member 1 and the outer wrap laminate material 30 . Therefore, the portions to be heat-sealed can be smoothly fused, and the installation work of the entrance/exit members 1 and 2 can be performed easily and smoothly.

<Fourth Embodiment>
FIG. 6 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material according to a fourth embodiment of the present invention.

As shown in the figure, in the heat exchanger using the laminate material of the fourth embodiment, the first and second inlet/outlet members 1 and 2 are both made of metal. Further, a male thread 54a is formed on the outer peripheral surface of the penetrating cylindrical portion 11 of the first entrance/exit member 1, and a female thread 54b is formed on the inner peripheral surface of the coupling cylinder portion 21 of the second entrance/exit member 2.

In the heat exchanger using the laminate material of the fourth embodiment, the flange portion 22 of the second inlet/outlet member 2 is arranged to face the peripheral edge of the inlet/outlet of the outer wrap laminate material 30, while the through cylinder of the first inlet/outlet member 1 The portion 11 passes through the port 35 and is screwed into the connecting tubular portion 21 of the second port member 2 . In this way, the tubular portions 11 and 21 of the doorway members 1 and 2 are fixed by screws while the peripheral edge of the doorway of the outer wrap laminate material 30 is sandwiched between the flange portions 12 and 22 . Further, an O-ring 55 is interposed between the flange portion 12 of the first doorway member 1 and the peripheral edge of the doorway of the outer wrap laminate material 30 to seal the space therebetween. In the fourth embodiment, the flange portion 22 of the second doorway member 2 and the outer wrap laminate material 30 are not particularly sealed. You can make it work.

In the heat exchanger using the laminate material of the fourth embodiment, the rest of the configuration is substantially the same as that of the above-described embodiment.

A heat exchanger using the laminate material of the fourth embodiment can also obtain the same effect as described above.

<Fifth Embodiment>
FIG. 7 is an enlarged cross-sectional view showing the vicinity of the entrance and exit of a heat exchanger using a laminated material according to a fifth embodiment of the present invention.

As shown in the figure, in the heat exchanger using the laminate material of the fourth embodiment, the first and second inlet/outlet members 1 and 2 are both made of metal.

While the flange portion 22 of the second doorway member 2 is arranged to face the peripheral edge of the doorway of the outer package laminate material 30 , the penetrating tubular portion 11 of the first doorway member 1 penetrates the doorway 35 to the second doorway member 2 . It is fitted into the coupling tube portion 21 . In this state, a part of the coupling cylinder part 21 and a part of the penetrating cylinder part 11 corresponding to the part are crimped so as to be recessed inward, and the first and the first through the crimped part 55 are crimped. Two doorway members 1, 2 are joined. An adhesive 52 is filled and sealed between the flange portion 12 of the first entrance member 1 and the outer wrapping laminate material 30, and the flange portion 22 of the second entrance member 2 and the outer wrapping laminate material 30 are adhered. Agent 52 is filled and sealed.

In the heat exchanger using the laminate material of the fifth embodiment, the rest of the configuration is substantially the same as that of the above-described embodiment.

A heat exchanger using the laminate material of the fifth embodiment can also obtain the same effects as described above.

<Modification>
In each of the above embodiments, the first inlet/outlet member 1 is arranged on the inner surface side of the outer bag 3, and the second inlet/outlet member 2 is arranged on the outer surface side of the outer bag 3. However, the present invention is not limited to this. , the first inlet/outlet member 1 may be arranged on the outer surface side of the outer bag 3 and the second inlet/outlet member 2 may be arranged on the inner surface side of the outer bag 3 .

For example, as shown in the modification of FIG. The pipe joint portion 15 of is constructed by a flanged cylindrical member integrally formed. Further, the second inlet/outlet member 2 is composed of a relatively thick ring-shaped flange member 22 .

On the inner surface side of the outer bag 3 , the second inlet/outlet member 2 is arranged to face the inlet/outlet 35 in the central hole thereof, while the tubular penetrating portion 11 of the first inlet/outlet member 1 has the inlet/outlet 35 from the outer surface side of the outer bag 3 . The penetrating cylindrical portion 11 is inserted into the central hole of the second doorway member 2, and the penetrating cylindrical portion 11 is joined to the central hole of the second doorway member 2 by an appropriate joining means such as an adhesive. . Further, the space between the flange portion 12 of the first entrance member 1 and the outer wrapping laminate material 30 is sealed by an appropriate sealing means such as an adhesive, and the flange member 22 as the second entrance member 2 and the outer wrapping laminate material 30 are sealed. The gap is sealed by suitable sealing means such as adhesive.

8, the upper side of the outer wrapping laminate material 30 is the inside of the outer wrapping bag 3, and the lower side of the outer wrapping laminate material 30 is the outer side of the outer wrapping bag 3. In FIG. The lower side of 30 is the inside of the outer wrapping bag 3, and the upper side of the outer wrapping laminated material 30 is the outer side of the outer wrapping bag 3. Since the joint portion 15 is arranged to protrude outward, the pipe joint portion 15 may be used to connect an outer pipe such as a refrigerant pipe.

In the above-described embodiments and the like, the first and second doorway members 1 and 2 are connected by adhesive, screwing, caulking, etc., but in the present invention, the first and second doorway members The coupling means between 1 and 2 is not limited, and any coupling method may be used. A snap-fit method can be considered as an example of a coupling method other than the above. That is, when an elastic hook is formed in the penetrating cylinder portion 11 of the first entrance/exit member 1 and a hook receiver is formed in the coupling cylinder portion 21 of the second entrance/exit member 2, the penetration cylinder portion 11 is fitted into the coupling cylinder portion 21. First, the elastic hook is automatically engaged with the hook receptacle so that both doorway members 1, 2 are connected. As a result, the first and second doorway members 1 and 2 can be connected with one touch, and the work of assembling the doorway members 1 and 2 can be performed more easily and smoothly.

In the above-described embodiment, a three-layer structure is adopted as the outer wrap laminate material 30, but the present invention is not limited to this. A laminate material having a laminated two-layer structure may be used, or a laminate material having a structure of four or more layers may be used.

Further, in the above embodiment, the case where the heat exchanger using the laminated material of the present invention is used as a cooler has been described as an example, but the present invention is not limited thereto, and the heat exchanger using the laminated material of the present invention is , can also be used as a heater.

A heat exchanger using the laminate material of the present invention can be suitably used as a cooling device for cooling a heating element such as a battery device for driving an electric motor employed in, for example, a hybrid vehicle or an electric vehicle.

1: First Rim Member 11: Penetrating Cylinder Portion 12: Flange Portion, Flange Member 2: Second Rim Member 21: Combining Cylindrical Portion 22: Flange Portion 3: Outer Bag 30: Outer Laminate Material 31: Heat Transfer Layer 32 : Coating layer 35: Doorway 51: Adhesive 52: Adhesive 53: Welded portion

Claims (10)

An outer wrapper bag is provided in which an outer wrapper laminate material having a resin coating layer provided on at least one side of a metal heat transfer layer is formed in a bag shape, and the outer wrappertube is provided through a doorway penetrating through the outer wrapper laminate material. In a heat exchanger using a laminated material that allows the heat medium to flow in and out of the inside of the
The entrance/exit is provided in the planar portion of the outer packet,
a first entrance/exit member having a flange portion having a higher strength than the outer wrapping laminated material provided at one end of a cylindrical penetrating cylinder portion;
a second doorway member having a ring-shaped flange portion having a higher strength than the outer wrapping laminated material,
The flange portion of the second doorway member is arranged at the entrance peripheral edge portion on one side of the outer wrapping laminate material, while the flange portion of the first doorway member is arranged at the entrance peripheral edge portion on the other side of the outer wrapping laminate material. The through cylinder portion is arranged to penetrate through the central holes of the entrance and the second entrance member, and the first and second entrance members are coupled, so that both flange portions of both the entrance and exit members are connected to the outer casing. A heat exchanger using a laminated material, characterized in that both entrance/exit members are fixed to the outer packaging bag in a state in which the entrance/exit peripheral edge of the laminate material is sandwiched. 2. A heat exchanger using a laminated material according to claim 1, wherein at least one of said first and second inlet/outlet members is made of metal. 2. A heat exchanger using a laminated material according to claim 1, wherein at least one of said first and second inlet/outlet members is made of resin. The second inlet/outlet member is provided with a tubular coupling cylinder portion on one surface side of the flange portion thereof,
The laminate material according to any one of claims 1 to 3, wherein the through cylinder portion of the first doorway member is fitted into the coupling cylinder portion of the second doorway member, and both cylinder portions are joined. heat exchanger. A heat exchanger using a laminated material according to any one of claims 1 to 4, wherein said first and second inlet/outlet members are bonded to each other with an adhesive. 6. The space between the flange portion of at least one of the first and second inlet/outlet members and the peripheral edge of the inlet/outlet of the outer wrap laminate material is sealed by filling an adhesive. A heat exchanger using the laminate material described in . The outer wrap laminate material is provided with the coating layers on both sides of the heat transfer layer,
Either one of the first and second inlet/outlet members is made of resin, and the flange portion of one of the inlet/outlet members and the inlet/outlet peripheral edge of the outer wrap laminate material are bonded by thermocompression bonding. A heat exchanger using the laminated material according to any one of claims 1 to 5, which is hermetically sealed. A heat exchanger using the laminated material according to any one of claims 1 to 7, wherein the heat transfer layer of the outer wrapping laminated material is made of aluminum. A heat exchanger using the laminate material according to any one of claims 1 to 8, which is used for cooling a heating element for a vehicle. An outer wrapper bag is provided in which an outer wrapper laminate material having a resin coating layer provided on at least one side of a metal heat transfer layer is formed in a bag shape, and the outer wrappertube is provided through a doorway penetrating through the outer wrapper laminate material. In the entrance/exit structure of a heat exchanger using a laminated material that allows the heat medium to flow in and out of the inside of the
The entrance/exit is provided in the planar portion of the outer packet,
a first entrance/exit member having a flange portion having a higher strength than the outer wrapping laminated material provided at one end of a cylindrical penetrating cylinder portion;
a second doorway member having a ring-shaped flange portion having a higher strength than the outer wrapping laminated material,
The flange portion of the second doorway member is arranged at the entrance peripheral edge portion on one side of the outer wrapping laminate material, while the flange portion of the first doorway member is arranged at the entrance peripheral edge portion on the other side of the outer wrapping laminate material. The through cylinder portion is arranged to penetrate through the central holes of the entrance and the second entrance member, and the first and second entrance members are coupled, so that both flange portions of both the entrance and exit members are connected to the outer casing. An inlet/outlet structure for a heat exchanger using a laminated material, characterized in that both inlet/outlet members are fixed to the outer bag while sandwiching the inlet/outlet peripheral edge of the laminated material.

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