JP2023108534A - Temperature control device - Google Patents

Abstract

To provide a temperature control device which is excellent in airtightness.SOLUTION: A temperature control device 1A includes a metal first plate 11A, a second plate 12A, a flow channel wall part 13A sandwiched between the first plate and the second plate, and a resin fixing part 14 for fixing the second plate to the first plate. An internal flow channel R1 for circulating a heat exchange medium is formed of at least the one of the first plate and the second plate, and the flow channel wall part. The first plate has at least one step 110 in a part contacting the resin fixing part. The second resin plate has at least one step 120 in a part contacting the resin fixing part.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to temperature control devices.

A central processing unit (CPU) installed in a computer or a secondary battery installed in an electric vehicle generates heat during operation. Various cooling devices using a cooling medium have been proposed as means for cooling such heat generating bodies.

Patent Literature 1 discloses a cooling device for cooling a heating element. The cooling device disclosed in Patent Document 1 includes a resin member, a first metal member, and a second metal member. A coolant flow path is formed in the resin member. The first metal member has a first surface and a second surface. The first surface of the first metal member contacts the resin member. The second surface of the first metal member is in contact with the first heating element. The second metal member has a first surface and a second surface. The first surface of the second metal member contacts the resin member. A second surface of the second metal member contacts the second heating element. A first surface of each of the first metal member and the second metal member is planar.

JP 2016-9776 A

In the cooling device disclosed in Patent Document 1, a pressurized coolant is circulated in a coolant channel. A cooling device is subjected to internal pressure due to circulation of the refrigerant. A first surface of each of the first metal member and the second metal member is planar. As a result, due to the internal pressure caused by the circulation of the coolant, stress tends to concentrate on the joint portion (flat portion) between at least one of the first metal member and the second metal member and the resin member. As a result, there is a possibility that destruction (for example, a gap, etc.) may occur in the joint. Starting from this breakage, the cooling medium may leak out of the cooling device. Therefore, there is a demand for a cooling device in which the joints are less likely to be damaged (that is, a cooling device with excellent airtightness).

In view of the above circumstances, an object of the present disclosure is to provide a temperature control device with excellent airtightness.

Means for solving the above problems include the following embodiments.
<1> A metal first plate;
a second plate;
a channel wall sandwiched between the first plate and the second plate;
a resin fixing portion fixing the second plate to the first plate;
An internal channel for circulating a heat exchange medium is formed by at least one of the first plate and the second plate and the channel wall,
The temperature control device, wherein the first plate has at least one step at a portion that contacts the resin fixing portion.
<2> the first plate and the channel wall are separate bodies,
The temperature control device according to <1>, wherein the at least one step includes a step formed along an outer circumference of a contact portion between the first plate and the flow channel wall.
<3> The temperature control device according to <1> or <2>, wherein the first plate has a fine concavo-convex structure in a portion that contacts the resin fixing portion.
<4> The temperature control device according to any one of <1> to <3>, wherein the second plate and the flow path wall are integrally molded metal parts.
<5> The second plate is made of metal,
The temperature control device according to any one of <1> to <4>, wherein the flow path wall is made of resin.
<6> The temperature control device according to <5>, wherein the second plate has at least one step at a portion that contacts the resin fixing portion.
<7> The temperature control device according to any one of <4> to <6>, wherein the second plate has a fine concavo-convex structure in a portion that contacts the resin fixing portion.
<8> The temperature control device according to any one of <1> to <3>, wherein the second plate and the flow path wall are integrally molded resin products.
<9> The temperature control device according to any one of <1> to <8>, wherein the resin fixing portion is formed by insert molding.

According to the present disclosure, a temperature control device with excellent airtightness is provided.

1 is a perspective view showing the appearance of a temperature control device according to a first embodiment of the present disclosure; FIG. 1 is a perspective view showing the appearance of a temperature control device according to a first embodiment of the present disclosure; FIG. 2 is a cross-sectional view taken along line C3-C3 of FIG. 1; FIG. FIG. 5 is a cross-sectional view of a temperature control device according to a second embodiment of the present disclosure; FIG. 5 is a cross-sectional view of a temperature control device according to a third embodiment of the present disclosure; FIG. 11 is a cross-sectional view of a temperature control device according to a fourth embodiment of the present disclosure; FIG. 11 is a cross-sectional view of a temperature control device according to a fifth embodiment of the present disclosure; FIG. 11 is a cross-sectional view of a temperature control device according to a sixth embodiment of the present disclosure; FIG. 11 is a cross-sectional view of a temperature control device according to a seventh embodiment of the present disclosure;

In this specification, a numerical range represented by "to" means a range including the numerical values before and after "to" as lower and upper limits.
In this specification, the term "process" is not only an independent process, but also includes the term if the intended purpose of the process is achieved even if it cannot be clearly distinguished from other processes. be

Hereinafter, embodiments of a temperature control device according to the present disclosure will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

(1) Temperature Control Device The temperature control device of the present disclosure is used to control the temperature of at least one heat exchange object. Specifically, the temperature control device takes heat from the heat-exchanged body or gives heat to the heat-exchanged body by making thermal contact with the heat-exchanged body.
The body to be heat exchanged is not particularly limited, and may be a CPU, a memory module, a battery module, a power module, or the like. Examples of memory modules include DIMMs (Dual Inline Memory Modules). Examples of battery modules include lithium ion battery modules.

A temperature control device of the present disclosure includes a first plate (hereinafter sometimes referred to as a "first metal plate"), a second plate, a channel wall portion, and a resin fixing portion. The first metal plate is made of metal. A channel wall is sandwiched between the first metal plate and the second plate. A resin fixing portion fixes the second plate to the first metal plate. An internal channel for circulating a heat exchange medium is formed by at least one of the first metal plate and the second plate and the channel wall. The first metal plate has at least one step at a portion in contact with the resin fixing portion.

In the present disclosure, "internal channel" indicates a space for circulating the heat exchange medium.

Since the temperature control device of the present disclosure has the above configuration, it is excellent in airtightness.
This effect is presumed to be due to the following reasons, but is not limited thereto.
In the temperature control device of the present disclosure, the heat exchange medium is pressurized and circulated within the internal flow path to control the temperature of the heat exchange object. At this time, the temperature control device receives internal pressure due to the circulation of the heat exchange medium.
In the present disclosure, the first metal plate has at least one step at a portion that contacts the resin fixing portion. The step of the first metal plate has a first inclined surface. The first inclined surface is inclined with respect to an arbitrary direction within a plane orthogonal to the thickness direction of the first metal plate (hereinafter referred to as "the in-plane direction of the first metal plate").
The first inclined surface resists the internal pressure caused by the circulation of the heat exchange medium, especially the internal pressure in the in-plane direction of the first metal plate. Therefore, the stress applied to the joint between each of the first metal plate and the second plate and the resin fixing portion is reduced as compared with the conventional case where the portion of the first metal plate that contacts the resin fixing portion is only flat. be. More specifically, conventionally, the portion of the first metal plate that comes into contact with the resin-fixed portion is only a flat portion (hereinafter referred to as “first flat contact portion”). Therefore, the stress caused by the internal pressure is likely to be applied to the first contact plane portion. On the other hand, in the present disclosure, the portion of the first metal plate that comes into contact with the resin fixing portion is referred to as the first contact plane portion and the portion of the first inclined surface (hereinafter, “first contact inclined surface portion”). ) and Therefore, the stress caused by the internal pressure is likely to be applied not only to the first flat contact surface portion but also to the first inclined contact surface portion. That is, in the present disclosure, stress due to internal pressure is distributed to the first contact ramp portion. As a result, the stress caused by the internal pressure is less likely to concentrate on the first contact plane portion of the joint than in the conventional art, and the joint is less likely to break (for example, a gap). As a result, it is presumed that the temperature control device of the present disclosure has excellent airtightness.

The first metal plate has at least one step at a portion that contacts the resin fixing portion.
The step of the first metal plate is formed by the first surface, the second surface, and the first inclined surface of the main surface of the first metal plate on which the resin fixing portion is arranged. The position of the second surface is different from the position of the first surface in the thickness direction of the first metal plate. The first inclined surface connects the first surface and the second surface. Each of the first surface and the second surface is substantially perpendicular to the thickness direction of the first metal plate. "Substantially orthogonal" means that when the angle between two line segments is expressed in the range of 0° or more and 90° or less, the angle between two line segments is 70° or more and 90° or less and is 90°. may The first inclined surface is inclined with respect to the in-plane direction of the first metal plate. When the concave portion is formed in the portion of the first metal plate that contacts the resin fixing portion, the concave portion includes a step of the first metal plate.
The inclination angle of the first inclined surface is more than 0° and 90° or less with respect to the first surface or the second surface, and is appropriately selected according to the size of the temperature control device, and is, for example, 90°.
The inclination length along the direction of the inclination angle of the first inclined surface is not particularly limited, and is appropriately selected according to the size of the temperature control device and the like. When the heat exchange object is a CPU, the inclination length along the direction of the inclination angle of the first inclined surface is preferably 0.5 mm to 10 mm, more preferably 1 mm to 5 mm. The height difference of the step of the first metal plate (that is, the length between the first surface and the second surface in the thickness direction of the first metal plate) is preferably 0.5 mm to 20 mm, more preferably 1 mm to 10 mm. is. When the inclination angle of the first inclined surface is 90°, the inclination length of the first inclined surface and the height difference of the step of the first metal plate are the same.
The number of steps on the first metal plate may be at least one, and is appropriately selected according to the size of the temperature control device and the like. When the first metal plate has a plurality of steps, the inclination angles and the inclination lengths of the first inclined surfaces of the plurality of steps may be the same or different.
It is preferable that the step of the first metal plate is formed along the entire circumference of the main surface on the side where the resin fixing portion is arranged, so as to surround the portion that comes into contact with the channel wall.

The first metal plate and the channel wall are separate bodies, and at least one step of the first metal plate is a step ( hereinafter referred to as a "first step"). In other words, the first inclined surface of the first step of the first metal plate is preferably formed continuously with the outer peripheral surface of the channel wall. As a result, the stress caused by the internal pressure can be easily dispersed by the first inclined contact surface portion. Therefore, the stress caused by the internal pressure is less likely to be concentrated on the first contact plane portion of the joint, and breakage (for example, gaps) of the joint is less likely to occur. As a result, the airtightness of the temperature control device is further improved.
In particular, from the viewpoint of further improving the airtightness of the temperature control device, when the inclination angle of the first inclined surface is 90°, the first step is preferably formed along the outer peripheral surface of the flow channel wall. .
The at least one step of the first metal plate may further include a step different from the first step.

In the present disclosure, "the first metal plate and the flow channel wall are separate bodies" indicates that the first metal plate and the flow channel wall are not integrally molded metal products.

It is preferable that the first metal plate has a fine concave-convex structure in a portion that contacts the resin fixing portion. As a result, part of the resin fixing portion enters the concave portion of the fine concave-convex structure of the first metal plate. As a result, the first metal plate is more strongly bonded to the resin fixing portion. Therefore, the tightness of the temperature control device can be maintained for a longer period of time.

The state of the fine concave-convex structure is not particularly limited as long as a sufficient bonding strength (hereinafter referred to as "bonding strength") between the first metal plate and the resin fixing portion can be obtained.
The average pore diameter of the recesses in the uneven structure is preferably 5 nm to 500 μm, more preferably 10 nm to 150 μm, and even more preferably 15 nm to 100 μm.
The average pore depth of the recesses in the uneven structure is preferably 5 nm to 500 μm, more preferably 10 nm to 150 μm, still more preferably 15 nm to 100 μm.
When at least one of the average pore diameter and the average pore depth of the recesses in the uneven structure is within the above numerical range, stronger bonding tends to be obtained.
The method for measuring the average pore diameter and average pore depth of the recesses is a method based on JIS B0601-2001.

The fine uneven structure is formed by roughening the surface of the first metal plate. The method of roughening the surface of the metal member is not particularly limited, and various known methods may be used.
The surface of the first metal plate may be treated to add functional groups from the viewpoint of improving the bonding strength. Various known methods may be used for the treatment of adding functional groups.

The shape and size of the temperature control device are not particularly limited, and are appropriately selected according to the type of the heat-exchanged body, and are, for example, rectangular parallelepipeds.

Hereinafter, the metal second plate may be referred to as a "second metal plate". The resin-made second plate may be referred to as a "second resin plate". A metallic channel wall may be referred to as a “metal channel wall”. The flow path wall made of resin may be referred to as a "resin flow path wall".

The configuration of the temperature control device is not particularly limited, and may be a first configuration, a second configuration, a third configuration, or a fourth configuration depending on the materials of each of the second plate and the channel wall.
In the first configuration, the temperature control device includes a first metal plate, a second metal plate, a resin channel wall portion, and a resin fixing portion.
In a second configuration, the temperature control device includes a first metal plate, a second metal plate, a metal channel wall, and a resin fixing portion.
In the third configuration, the temperature control device includes a first metal plate, a second resin plate, a resin channel wall portion, and a resin fixing portion.
In a fourth configuration, the temperature control device includes a first metal plate, a second resin plate, a metal channel wall portion, and a resin fixing portion.
The first configuration, second configuration, third configuration, and fourth configuration will be described below in this order.

(1.1) First Configuration In the first configuration, the temperature control device includes a first metal plate, a second metal plate, a resin channel wall portion, and a resin fixing portion. In the first configuration, the second plate is made of metal and the channel wall is made of resin.

(1.1.1) First Metal Plate The first metal plate is a metallic plate-like object.
The shape of the first metal plate may be, for example, a flat plate shape. The size of the first metal plate is appropriately selected according to the object to be heat exchanged.

Metals constituting the first metal plate are not particularly limited, and examples thereof include iron, copper, nickel, gold, silver, platinum, cobalt, zinc, lead, tin, titanium, chromium, aluminum, magnesium, manganese, and alloys thereof. (stainless steel, brass, phosphor bronze, etc.) and the like. Above all, from the viewpoint of thermal conductivity, the metal forming the first metal plate is preferably aluminum, an aluminum alloy, copper, or a copper alloy, more preferably copper or a copper alloy. From the viewpoint of weight reduction and ensuring strength, it is preferable that the metal forming the first metal plate is aluminum or an aluminum alloy.

At least one of the first metal plates is preferably in thermal contact with the heat exchange object. Thereby, the temperature control device can efficiently control the temperature of the heat exchange medium.
The first metal plate may be in thermal contact with the heat-exchanged body, for example, via a heat-conducting layer. The heat-conducting layer is not particularly limited, and may be a heat-conducting sheet or a heat-conducting material (TIM: Thermal Interface Material) layer. A thermally conductive material layer indicates a layer formed by applying a thermally conductive material. Thermally conductive materials include thermally conductive greases, thermally conductive gels, thermally conductive adhesives, Phase Change Materials, and the like.

(1.1.2) Second Metal Plate The second metal plate is a metallic plate-like object.
The shape of the second metal plate may be, for example, a flat plate shape. The size of the second metal plate is appropriately selected according to the object to be heat exchanged.

The second metal plate is superior in mechanical strength to the second resin plate. Therefore, the second metal plate can improve the resistance of the temperature control device to the internal pressure caused by the circulation of the heat exchange medium, compared to the case where the second resin plate is used.
The second metal plate can more efficiently control the temperature of the heat-exchanged medium by being in thermal contact with the heat-exchanged medium.
The second metal plate may be in thermal contact with the heat-exchanged body, for example, via a heat-conducting layer. The thermally conductive layer is the same as the thermally conductive layer of the first metal plate.

It is preferable that the second metal plate has at least one step at a portion that contacts the resin fixing portion. The step of the second metal plate is formed by the third surface, the fourth surface, and the second inclined surface of the main surface of the second metal plate on which the resin fixing portion is arranged. The position of the fourth surface is different from the position of the third surface in the thickness direction of the second metal plate. The second inclined surface connects the third surface and the fourth surface. Each of the third surface and the fourth surface is substantially orthogonal to the thickness direction of the second metal plate. The second inclined surface is inclined with respect to an arbitrary direction within a plane orthogonal to the thickness direction of the second metal plate (hereinafter referred to as "the in-plane direction of the second metal plate"). When the concave portion is formed in the portion of the second metal plate that contacts the resin fixing portion, the concave portion includes a step of the second metal plate.
The second inclined surface opposes the internal pressure caused by the circulation of the heat exchange medium, especially the internal pressure in the in-plane direction of the second metal plate. That is, the stress applied to the joint between each of the first metal plate and the second plate and the resin fixing portion is alleviated as compared with the conventional case where the portion of the second metal plate that contacts the resin fixing portion is only flat. be. More specifically, conventionally, the portion of the second metal plate that comes into contact with the resin fixing portion is only the plane portion (hereinafter referred to as the “second contact plane portion”). Therefore, the stress caused by the internal pressure is likely to be applied to the second contact plane portion. On the other hand, in the present disclosure, the portions of the second metal plate that come into contact with the resin fixing portion are referred to as a second flat contact surface portion and a second inclined surface portion (hereinafter, “second contact inclined surface portion”). ) and Therefore, the stress caused by the internal pressure is likely to be applied not only to the second contact plane portion but also to the second contact inclined surface portion. In other words, the stress caused by the internal pressure is distributed to the second contact slope portion. As a result, the stress caused by the internal pressure is less likely to be concentrated on the second contact plane portion of the joint, and breakage (for example, gaps) of the joint is less likely to occur. As a result, the temperature control device of the present disclosure is more airtight.

The inclination angle of the second inclined surface is more than 0° and 90° or less with respect to the third surface or the fourth surface, and is appropriately selected according to the size of the temperature control device, and is, for example, 90°.
The inclination length along the direction of the inclination angle of the second inclined surface is not particularly limited, and is appropriately selected according to the size of the temperature control device and the like. When the body to be heat-exchanged is a CPU, the inclination length along the direction of the inclination angle of the second inclined surface is preferably 0.5 mm to 10 mm, more preferably 1 mm to 5 mm. The height difference of the step of the second metal plate (that is, the length between the third surface and the fourth surface in the thickness direction of the second metal plate) is preferably 0.5 mm to 20 mm, more preferably 0.5 mm. ~10 mm. When the inclination angle of the second inclined surface is 90°, the inclined length of the second inclined surface and the height difference of the step of the second metal plate are the same.
The number of steps of the second metal plate should be at least one, and is appropriately selected according to the size of the temperature control device and the like. When the number of steps of the second metal plate is plural, the inclination angle and the inclination length of the second inclined surface of each of the plural steps may be the same or different.
It is preferable that the step of the second metal plate is formed along the entire circumference of the main surface on the side where the resin fixing portion is arranged so as to surround the portion that comes into contact with the resin flow path wall portion.

The second metal plate and the resin flow channel wall are separate bodies, and at least one step of the second metal plate is formed along the outer periphery of the contact portion between the second metal plate and the resin flow channel wall. It is preferable to include a step (hereinafter referred to as a "second step"). In other words, the second inclined surface of the second step of the second metal plate is preferably formed continuously with the outer peripheral surface of the resin flow path wall. Thereby, the stress caused by the internal pressure is easily dispersed by the second inclined contact surface portion. Therefore, the stress caused by the internal pressure is less likely to be concentrated on the second contact plane portion of the joint, and breakage (for example, gaps) of the joint is less likely to occur. As a result, the airtightness of the temperature control device is further improved.
In particular, from the viewpoint of further improving the airtightness of the temperature control device, when the inclination angle of the second inclined surface is 90°, the second step is preferably formed along the outer peripheral surface of the resin flow path wall. preferable.
The at least one step of the second metal plate may further include a step different from the second step.
The configuration of the at least one step of the second metal plate may be the same as or different from the configuration of the at least one step of the first metal plate.

The metal forming the second metal plate is not particularly limited, and is the same as the metal exemplified as the metal forming the first metal plate. Above all, from the viewpoint of thermal conductivity, the metal forming the second metal plate is preferably aluminum, an aluminum alloy, copper, or a copper alloy, more preferably copper or a copper alloy. From the viewpoint of weight reduction and ensuring strength, the metal forming the second metal plate is preferably aluminum or an aluminum alloy.

It is preferable that the second metal plate has a fine concave-convex structure in a portion that contacts the resin fixing portion. As a result, part of the resin fixing portion enters the concave portion of the fine concave-convex structure of the second metal plate. As a result, the second metal plate is more strongly bonded to the resin fixing portion. Therefore, the tightness of the temperature control device can be maintained for a longer period of time.
The state of the fine ruggedness structure is not particularly limited as long as a sufficient bonding strength (hereinafter referred to as "bonding strength") between the second metal plate and the resin fixing portion can be obtained, and the fine ruggedness structure of the first metal plate is not particularly limited. It is the same as that exemplified as

(1.1.3) Resin channel wall portion The resin channel wall portion can reduce the weight of the temperature control device compared to the case of using the metal channel wall portion, and the degree of freedom in designing the internal channel. can be improved.

The resin channel wall constitutes a part of the wall forming the internal channel. The resin flow path wall is, for example, a cylinder or plate made of resin.
The shape and size of the resin flow path wall are appropriately selected according to the type of the heat-exchanged body.

The resin channel wall portion is a molded body of the first resin composition. The resin channel wall includes an injection molded product or a press molded product.
The resin component of the first resin composition is not particularly limited, and can be selected according to the application of the temperature control device. Examples of resin components of the first resin composition include thermoplastic resins (including elastomers) and thermosetting resins. Thermoplastic resins (including elastomers) include polyolefin resins, polyvinyl chloride, polyvinylidene chloride, polystyrene resins, acrylonitrile-styrene copolymer (AS) resins, acrylonitrile-butadiene-styrene copolymer (ABS) resins, and polyester resins. , poly(meth)acrylic resin, polyvinyl alcohol, polycarbonate resin, polyamide resin, polyimide resin, polyether resin, polyacetal resin, fluorine resin, polysulfone resin, polyphenylene sulfide resin, polyketone resin, etc. mentioned. Thermosetting resins include phenol resins, melamine resins, urea resins, polyurethane resins, epoxy resins, unsaturated polyester resins, and the like. These resins may be used alone or in combination of two or more. From the viewpoint of moldability, the resin component of the first resin composition preferably contains a thermoplastic resin. The first resin composition may optionally contain at least one of a filler and a compounding agent. good. Examples of fillers include various fibers such as glass fiber, carbon fiber, and cellulose fiber, carbon nanotube (CNT), graphene, carbon particles, clay, talc, silica, and minerals. You may use these fillers individually by 1 type or in combination of 2 or more types. Compounding agents include heat stabilizers, antioxidants, pigments, weathering agents, flame retardants, plasticizers, dispersants, lubricants, release agents, antistatic agents, and the like. You may use these compounding agents individually by 1 type or in combination of 2 or more types.

(1.1.4) Resin fixing portion The resin fixing portion fixes the second metal plate to the first metal plate. The resin fixing portion is a fixing portion made of resin.
The shape and size of the resin fixing portion are not particularly limited, and are appropriately selected according to the first metal plate, the second metal plate, the channel wall portion, and the like.

The resin fixing portion may be formed by insert molding or may be formed by welding.
In the insert molding of the first configuration, the superimposed body of the first metal plate, the second metal plate, and the flow path wall is inserted into a mold, and the molten material of the resin fixing portion is superimposed on the outer surface of the superimposed body. It is injected into the site to form a resin fixing part.
Welding includes heat welding, vibration welding, laser welding, ultrasonic welding, or hot plate welding.
The resin fixing portion is preferably formed by insert molding. Thus, in the first configuration, the resin fixing portion more reliably enters the gaps between the uneven portions of the surfaces in contact with each of the first metal plate and the second metal plate than when formed by welding. Therefore, the resin fixing portion is more strongly fixed to the first metal plate and the second metal plate. As a result, the airtightness of the temperature control device can be maintained for a longer period of time.

The resin fixing portion is a molded body of the second resin composition.
The resin component of the second resin composition is not particularly limited, and is the same as the resin exemplified as the resin component of the first resin composition, and may contain a resin compatible with the resin component of the first resin composition. preferable. As a result, the resin fixing portion and the resin channel wall portion are fused together. As a result, the airtightness of the temperature control device can be maintained for a longer period of time.

The term "having compatibility" means that the resin components forming the resin fixing portion and the resin flow channel wall are compatible with each other under an atmosphere in which the resin components forming the resin fixing portion and the resin flow channel wall are melted. It shows that they mix without separating.
"The resin fixed portion and the resin flow path wall are fused together" means that the resin flow path wall and the resin fixed portion are not bonded to each other at room temperature (for example, 23°C) without an adhesive, screws, or the like. is stuck.

The second resin composition may contain at least one of a filler and a compounding agent, if necessary. Examples of fillers and compounding agents include those exemplified as fillers and compounding agents that can be contained in the resin composition.

(1.1.5) Internal Channel The temperature control device has an internal channel for circulating the heat exchange medium. The heat exchange medium exchanges heat with the object to be heat exchanged.
The shape of the internal flow path is not particularly limited, and is appropriately selected according to the object to be heat-exchanged.
The heat exchange medium is a medium for cooling or a medium for heating, and is appropriately selected according to the type of heat-exchanged body.
A cooling medium indicates a medium for removing heat from a heat-exchanged body. Cooling media include cooling liquids, cooling gases, and the like. The cooling liquid is not particularly limited as long as it is a liquid generally used for cooling, and examples thereof include water, oil, glycol-based aqueous solution, refrigerant for air conditioners, non-conductive liquid, phase change liquid, and the like. Examples of the cooling gas include air and nitrogen gas. The temperature of the cooling medium is appropriately adjusted according to the type of the heat exchange medium.
A heating medium indicates a medium for applying heat to a heat-exchanged body. Examples of the heating medium include a heating liquid and a heating gas. The heating liquid is not particularly limited as long as it is a liquid that is generally used as a heating liquid, and examples thereof include water, oil, glycol-based aqueous solutions, refrigerants for air conditioners, non-conductive liquids, phase-change liquids, and the like. Examples of the heating gas include air, water vapor, and the like. The temperature of the heating medium is appropriately adjusted according to the type of heat-exchanged body.

The fact that the temperature control device has an internal channel means that the temperature control device has a supply port and a recovery port. The supply port and the recovery port are in communication via an internal channel.
A supply port is a part connected with an external supply part. The supply port guides the heat exchange medium supplied from the supply part into the internal flow path. The supply unit supplies the heat exchange medium to the temperature control device.
The recovery port is a portion connected to the recovery section. The recovery port guides the heat exchange medium in the internal flow path to the external recovery section. The recovery unit recovers the heat exchange medium from the temperature control device.
Each of the supply port and the recovery port (hereinafter referred to as "supply port, etc.") may have a connecting part. A male connector (nipple) or the like can be used as the connecting part. If each of the supply ports and the like does not have connecting parts, the temperature control device may be processed to connect each of the supply section and the collection section. Examples of processing methods include threading processing and the like.
When the temperature control device is a cuboid having two main surfaces, each of the supply port and recovery port may be arranged on either of the two main surfaces and the four side surfaces. For example, each of the supply port and the recovery port may be arranged on the same main surface, may be arranged on different main surfaces, or may be arranged only on the side surface of the temperature control device.
The supply port or the like may be configured by the channel wall portion, or may be configured by at least one of the first metal plate and the second metal plate.

(1.1.6) Partition member The temperature control device may further have a partition member. The partition member partitions the internal flow path and controls the flow direction of the heat exchange medium flowing through the internal flow path. This allows the internal flow path to be designed more freely.

In a first configuration, the partition member is positioned between the first metal plate and the second metal plate within the internal channel. The partition member is, for example, fixed to at least one of the first metal plate and the second metal plate.
When the partition member is fixed to one of the first metal plate and the second metal plate, the partition member may or may not be in contact with the other. When the partition member is in contact with the other of the first metal plate and the second metal plate and the material of the partition member is resin, the partition member may be joined to the other. The material of the partition member is resin. It may be, or it may be metal. When the material of the partition member is metal, the partition member also functions as fins and can improve the efficiency of heat exchange. Examples of the resin forming the partition member include resins similar to the resins exemplified as the resin forming the resin flow path portion. Examples of the metal forming the partition member include metals similar to the metals exemplified as the metal forming the first plate.
A fixing method for fixing the partition member to at least one of the first metal plate and the second metal plate is appropriately selected according to the material of the partition member, and includes a welding method, a method using a known adhesive, and a method using a fastening part. (hereinafter referred to as "mechanical fastening"), welding, and the like. These fixing methods may be used alone or in combination of two or more. Fastening parts include bolts, nuts, screws, rivets, or pins. Welding includes metal welding or brazing. When the material of the partition member is metal, the partition member and at least one of the first metal plate and the second metal plate may be integrally molded. When the material of the partition member is resin, the partition member and the channel wall may be integrally molded.

(1.1.7) Example of First Configuration An example of the temperature control device of the first configuration will be described with reference to FIGS. 1 to 5. FIG. 4 and 5 are cross-sections of the temperature control devices according to the second and third embodiments taken along the same cutting line C3-C3 shown in FIG.

(1.1.7.1) First Embodiment As shown in FIG. 1, a temperature control device 1A according to the first embodiment includes a first metal plate 11A, a second metal plate 12A, and a resin channel wall. A portion 13A and a resin fixing portion 14 are provided.
The second metal plate 12A, the resin channel wall portion 13A, and the first metal plate 11A are arranged in this order. The resin fixing portion 14 contacts the peripheral edge portions of the first metal plate 11A and the second metal plate 12A to fix the second metal plate 12A to the first metal plate 11A.
The resin flow path wall portion 13A has a pair of connection portions 131 (corresponding to a supply port and a recovery port).

The side on which one connection portion 131 of the temperature control device 1A is arranged is defined as the rear side of the temperature control device 1A, and the opposite side is defined as the front side of the temperature control device 1A. The right side when the temperature control device 1A is viewed from the front side is defined as the right side of the temperature control device 1A, and the opposite side is defined as the left side of the temperature control device 1A. The side on which the first metal plate 11A is arranged is defined as the upper side of the temperature control device 1A, and the opposite side is defined as the lower side of the temperature control device 1A in the direction perpendicular to the front-back direction and the left-right direction of the temperature control device 1A. It should be noted that these directions do not limit the directions during use of the temperature control device of the present disclosure.
1 to 5, the front side is in the positive direction of the X-axis, the rear side is in the negative direction of the X-axis, the right side is in the positive direction of the Y-axis, the left side is in the negative direction of the Y-axis, and the upper side is in the positive direction of the Z-axis. The lower side corresponds to the Z-axis negative direction.

The temperature control device 1A is a cuboid. A pair of connection portions 131 of the resin flow path wall portion 13A are arranged on the upper main surface TS1 side of the temperature control device 1A. As shown in FIG. 2, the lower main surface BS1 of the temperature control device 1A is planar.
The dimensions of the temperature control device 1A are not particularly limited, and can be selected according to the application of the temperature control device 1A. For example, the area of the lower main surface BS1 of the temperature control device 1A may be in the range of 50 cm ² or more and 5,000 cm ^{2 or} less. For example, the vertical thickness of the temperature control device 1A may be in the range of 1 mm or more and 50 mm or less.

(1.1.7.1.1) First Metal Plate The first metal plate 11A is a flat plate. The shape of the first metal plate 11A viewed from above (positive direction of the Z-axis) to below (negative direction of the Z-axis) is substantially rectangular with long sides extending in the front-rear direction (X-axis direction).

As shown in FIG. 3, the first metal plate 11A has one step 110 at a portion that contacts the resin fixing portion 14. As shown in FIG. The step 110 is formed by the first surface D2, the second surface D3, and the first inclined surface D1 of the lower main surface BS11 of the first metal plate 11A. The inclination angle of the first inclined surface D1 is 90°. The length of the first inclined surface D1 along the direction of the inclination angle (the length in the Z-axis direction) is, for example, 5 mm. The first inclined surface D1 is formed along the outer peripheral surface S13 of the resin flow path wall portion 13A. In other words, the first inclined surface D1 and the outer peripheral surface S13 of the resin flow path wall portion 13A constitute the same continuous plane. The step 110 is formed along the entire circumference of the lower main surface BS11 of the first metal plate 11A so as to surround the portion in contact with the resin flow path wall portion 13A (that is, along the periphery of the first metal plate 11A). formed.

The first metal plate 11A has a pair of through holes HA as shown in FIG. The through hole HA penetrates the first metal plate 11A along the vertical direction (Z-axis direction). The through hole HA communicates with the internal flow path R1 (see FIG. 2) in the temperature control device 1A.
The material of the first metal plate 11A is the same as the metals exemplified as the material of the first metal plate.

(1.1.7.1.2) Second Metal Plate The second metal plate 12A is a flat plate. The shape of the second metal plate 12A viewed from above (positive direction of the Z-axis) to below (downward direction of the Z-axis) is a substantially rectangular shape with long sides extending in the front-rear direction (X-axis direction).

As shown in FIG. 3, the second metal plate 12A has one step 120 at a portion that contacts the resin fixing portion 14. As shown in FIG. The step 120 is formed by the third surface D5, the fourth surface D6, and the second inclined surface D4 of the upper main surface TS12 of the second metal plate 12A. The inclination angle of the second inclined surface D4 is 90°. The length of the second inclined surface D4 along the direction of the inclination angle (the length in the Z-axis direction) is, for example, 5 mm. The second inclined surface D4 is formed along the outer peripheral surface S13 of the resin flow path wall portion 13A. In other words, the second inclined surface D4 and the outer peripheral surface S13 of the resin flow path wall portion 13A constitute the same continuous plane. The step 120 is formed along the entire circumference of the upper main surface TS12 of the second metal plate 12A so as to surround the portion in contact with the resin flow path wall portion 13A (that is, along the periphery of the first metal plate 11A). formed.

The material of the second metal plate 12A is the same as the metals exemplified as the material of the second metal plate. The material of the second metal plate 12A may be the same as or different from that of the first metal plate 11A.

(1.1.7.1.3) Resin Flow Path Wall The resin flow path wall 13A is a resin tubular body. The resin channel wall portion 13A constitutes a part of the wall portion forming the internal channel R1. A pair of connecting portions 131 of the resin flow path wall portion 13A are exposed from the through holes HA as shown in FIG.
The material of the resin flow path wall portion 13A is the same as that exemplified as the first thermoplastic resin composition.

(1.1.7.1.4) Resin fixing portion The resin fixing portion 14 fixes the second metal plate 12A to the first metal plate 11A. That is, the resin fixing portion 14 integrates the first metal plate 11A, the second metal plate 12A, and the resin flow path wall portion 13A.
The material of the resin fixing portion 14 is the same as that exemplified as the second thermoplastic resin composition. The resin component of the second resin composition has compatibility with the resin component of the first resin composition. That is, the resin fixing portion 14 and the resin flow path wall portion 13A are fused together.

A gap R10 is formed between the first metal plate 11A and the second metal plate 12A, as shown in FIG. A gap R10 indicates a space between the first metal plate 11A and the second metal plate 12A in which the resin channel wall portion 13A is not in contact with the peripheral edge portions of the first metal plate 11A and the second metal plate 12A. . The gap R10 is formed along the entire periphery of the first metal plate 11A and the second metal plate 12A.
The resin fixing portion 14 is filled in the gap R10. That is, the resin fixing portion 14 is in physical contact with the peripheral portion of the lower main surface BS11 of the first metal plate 11A, the peripheral portion of the upper main surface TS12 of the second metal plate 12A, and the side surface of the resin flow path wall portion 13A. are doing.

The surface of the first metal plate 11A in contact with the resin fixing portion 14 and the surface of the second metal plate 12A in contact with the resin fixing portion 14 have a fine uneven structure.
The resin fixing portion 14 is formed by insert molding. The resin fixing portion 14 contains a resin compatible with the resin contained in the resin flow path wall portion 13A.

(1.1.7.1.5) Internal flow path The interior of the temperature control device 1A has an internal flow path R1. The internal channel R1 is formed by the first metal plate 11A, the second metal plate 12A, and the resin channel wall portion 13A. A cooling medium (an example of a heat exchange medium) flows through the internal flow path R1.

(1.1.7.1.6) Flow of Cooling Medium The temperature control device 1A is installed, for example, so that the lower main surface BS1 of the temperature control device 1A is in contact with a heating element (an example of an object to be heat-exchanged). used and used. At this time, one connection portion 131 is connected to an external supply portion. An external recovery unit is connected to the other connection unit 131 . The heat of the heating element is conducted to the cooling medium filled in the internal flow path R1 via at least one of the first metal plate 11A and the second metal plate 12A.

A cooling medium is supplied to the internal flow path R1 from one connection portion 131 by a supply portion. Most of the cooling medium moves toward the other connection portion 131 in the internal flow path R1. At this time, the cooling medium exchanges heat with the second metal plate 12A.
The cooling medium is then discharged to the external recovery section via the other connection section 131 .
In this manner, the cooling medium absorbs heat from the heating element inside the temperature control device 1A and is discharged outside the temperature control device 1A. Thereby, the temperature control device 1A promotes heat dissipation of the heating element. That is, the temperature control device 1A controls the temperature of the heating element.

(1.1.7.1.7) Effects As described with reference to FIGS. 1 to 3, the temperature control device 1A includes the first metal plate 11A, the second metal plate 12A, A wall portion 13A and a resin fixing portion 14 are provided. The first metal plate 11A has one step 110 at a portion that contacts the resin fixing portion 14 .
The first inclined surface D1 of the step 110 is orthogonal to the in-plane direction (eg, Y-axis direction) of the first metal plate 11A. Among the internal pressures caused by the circulation of the cooling medium, the first inclined surface D1 particularly opposes the internal pressure in the in-plane direction (for example, the Y-axis direction) of the first metal plate 11A. Therefore, it hangs on the joints (for example, the first surface D2, the second surface D3, the third surface D5, the fourth surface D6, etc.) between each of the first metal plate 11A and the second metal plate 12A and the resin fixing portion 14. The stress is lessened than in the conventional case where the portion of the first metal plate 11A that contacts the resin fixing portion 14 is planar. Specifically, conventionally, the pressure caused by the internal pressure tends to be applied to the first contact plane portion. On the other hand, in the temperature control device 1A, the portions of the first metal plate 11A that come into contact with the resin fixing portion 14 are the first plane D2 (hereinafter referred to as "first contact plane portion D2") and the first inclined plane D1. portion (hereinafter referred to as “first contact inclined surface D1”). Therefore, the stress caused by the internal pressure is likely to be applied not only to the first flat contact portion D2 but also to the first inclined contact surface D1. That is, in the temperature control device 1A, the stress caused by the internal pressure is distributed to the first contact slope portion D1. As a result, the stress caused by the internal pressure is less likely to concentrate on the first contact plane portion D2 of the joint than in the conventional art, and the joint is less likely to break (for example, a gap). As a result, the temperature control device 1A is more airtight. As a result, the stress caused by the internal pressure is less likely to concentrate on the first contact plane portion D2 of the joint than in the conventional art, and the joint is less likely to break (for example, a gap). As a result, the airtightness of the temperature control device 1A is excellent.

As described with reference to FIGS. 1 to 3, the first metal plate 11A and the resin channel wall portion 13A are separate bodies, and one step 110 is formed between the first metal plate 11A and the resin channel wall portion. It is formed along the outer periphery of the contact portion with 13A. In other words, the first inclined surface D1 of the first step 110 is formed continuously with the outer peripheral surface of the resin flow path wall portion 13A. Thereby, the stress caused by the internal pressure is easily dispersed by the first inclined contact surface portion D1. Therefore, the stress caused by the internal pressure is less likely to be concentrated on the first contact plane portion D1 of the joint, and breakage of the joint (for example, gaps) is less likely to occur. As a result, the temperature control device 1A is more airtight.

As described with reference to FIGS. 1 to 3, each of the first metal plate 11A and the second metal plate 12A has a fine concavo-convex structure at the portion that contacts the resin fixing portion . As a result, a part of the resin fixing portion 14 enters into the concave portion of the fine concave-convex structure in each of the first metal plate 11A and the second metal plate 12A. As a result, each of the first metal plate 11A and the second metal plate 12A is joined to the resin fixing portion 14 more firmly. Therefore, the airtightness of the temperature control device 1A can be maintained for a longer period of time.

As described with reference to FIGS. 1 to 3, the second metal plate 12A has one step 120 at the portion that contacts the resin fixing portion 14. As shown in FIG.
The second inclined surface D4 of the step 120 is orthogonal to the in-plane direction (eg, Y-axis direction) of the second metal plate 12A. Of the internal pressures caused by the circulation of the cooling medium, the second inclined surface D4 particularly opposes the internal pressure in the in-plane direction (eg, Y-axis direction) of the second metal plate 12A. Therefore, the stress applied to the joint between each of the second metal plate 11A and the second metal plate 12A and the resin fixing portion 14 is reduced in the conventional case where the portion of the second metal plate 12A that contacts the resin fixing portion 14 is only planar. is more relaxed than in the case of Specifically, conventionally, the pressure caused by the internal pressure tends to be applied to the first contact plane portion. On the other hand, in the temperature control device 1A, the portion of the second metal plate 12A that contacts the resin fixing portion 14 is the third plane D5 (hereinafter referred to as the "second contact plane portion D5") and the second inclined plane D4. portion (hereinafter referred to as “second contact inclined surface D4”). Therefore, the stress caused by the internal pressure is likely to be applied not only to the second flat contact portion D5 but also to the second inclined contact surface D4. That is, in the temperature control device 1A, the stress caused by the internal pressure is dispersed on the second inclined contact surface D4. As a result, the stress caused by the internal pressure is less likely to concentrate on the second contact plane portion D5 of the joint than in the conventional art, and the joint is less likely to break (for example, a gap). As a result, the temperature control device 1A is more airtight.

As described with reference to FIGS. 1 to 3, the resin fixing portion 14 is formed by insert molding. As a result, the resin fixing portion 14 enters into the gaps between the uneven portions of the surfaces contacting each of the first metal plate 11A and the second metal plate 12A more reliably than when formed by welding. Therefore, the resin fixing portion 14 is more strongly fixed to the first metal plate 11A and the second metal plate 12A. As a result, the airtightness of the temperature control device 1A can be maintained for a longer period of time.

(1.1.7.2) Second Embodiment A temperature control device 1B according to a second embodiment is different from that of the first embodiment except that the shapes of the second metal plate and the resin flow path wall are mainly different. is the same as the temperature control device 1A according to
The temperature control device 1B includes a first metal plate 11A, a second metal plate 12B, a resin channel wall portion 13B, and a resin fixing portion 14, as shown in FIG.

The second metal plate 12B is the same as the second metal plate 12A except that the step 120 is not provided.

The resin flow channel wall portion 13B is similar to the resin flow channel wall portion 13A except that the shape is different.
The resin flow path wall portion 13B is a plate-shaped object made of resin. As shown in FIG. 4, the resin flow path wall portion 13B has a recess R13. The recessed portion R13 is located at the central portion in the front-rear direction (X-axis direction) and the left-right direction (Y-axis direction) on the lower surface side of the resin flow path wall portion 13B. The recess R13 is formed to form an internal flow path R through which the cooling medium flows between the second metal plate 12B.
At least a portion of the upper surface of the resin flow path wall portion 13B that surrounds the recess R13 is in physical contact with the lower main surface BS11 of the first metal plate 11A. Therefore, an internal flow path R1 is formed between the recess R13 and the lower main surface BS11 of the first metal plate 11A.
The material of the resin flow path wall portion 13B is the same as that exemplified as the first thermoplastic resin composition.

(1.1.7.3) Third Embodiment A temperature control device 1C according to a third embodiment mainly differs in the shapes of the first metal plate, the second metal plate, and the resin flow path wall. are the same as those of the temperature control device 1A according to the first embodiment.
The temperature control device 1C includes a first metal plate 11C, a second metal plate 12C, a resin channel wall portion 13C, and a resin fixing portion 14, as shown in FIG.

The first metal plate 11C is the same as the first metal plate 11A except that it has an annular recess 111 at a portion that contacts the resin fixing portion 14 . The annular concave portion 111 is formed over the entire circumference so as to surround a portion that contacts the resin flow path wall portion 13C. The cross-sectional shape of the annular recess 111 is rectangular. The annular recess 111 forms a pair of steps 110 .

The second metal plate 12C is the same as the second metal plate 12A except that it has an annular recess 121 at a portion that contacts the resin fixing portion 14 . The annular concave portion 121 is formed over the entire circumference so as to surround a portion that contacts the resin flow path wall portion 13C. The cross-sectional shape of the annular recess 121 is rectangular. The annular recess 121 forms a pair of steps 120 .

The resin flow channel wall portion 13C is similar to the resin flow channel wall portion 13A except that the shape is different.
13 C of resin flow-path wall parts are resin-made cylinders. The resin flow path wall portion 13C is in contact with the entire side surface of each of the first metal plate 11C and the second metal plate 12C. The resin flow path wall portion 13C forms a side surface of the temperature control device 1C.

The resin fixing portion 14 is filled in each of the annular recess 111 of the first metal plate 11C and the annular recess 121 of the second metal plate 12C. In the third embodiment, the resin fixing portion 14 is formed by welding. The resin fixing portion 14 and the resin flow path wall portion 13C are fused together.

(1.2) Second Configuration In the second configuration, the temperature control device includes a first metal plate, a second metal plate, a metal channel wall portion, and a resin fixing portion. In a second configuration, the second plate is made of metal and the channel walls are made of metal.
The temperature control device of the second configuration is the same as the temperature control device of the first configuration, except that the metal channel walls are used instead of the resin channel walls.
Each of the first metal plate, the second metal plate, the resin fixing portion, and the internal flow channel is the same as those exemplified as the first metal plate, the second metal plate, the resin fixing portion, and the internal flow channel of the first configuration. .

(1.2.1) Metal Channel Wall A metal channel wall is superior in mechanical strength to a resin channel wall. Therefore, the metal flow path wall can improve the resistance of the temperature control device to the internal pressure caused by the circulation of the heat exchange medium, compared to the case where the resin flow path wall is used.

The metal channel wall forms part of the wall forming the internal channel. The channel wall portion is, for example, a tubular or plate-like object made of metal.
The shape and size of the metal channel wall are appropriately selected according to the type of the heat-exchanged body.

The metal forming the metal channel wall is not particularly limited, and is the same as the metal exemplified as the metal forming the first metal plate. The metal forming the metal channel wall may be the same as or different from the metal forming each of the first metal plate and the second metal plate.

The metal channel wall may be separate from each of the first metal plate and the second metal plate. In this case, the fixing method for fixing the metal channel wall to at least one of the first metal plate and the second metal plate is not particularly limited, and includes insert molding, a method using a known adhesive, and the like.

The metal channel wall may be an integrally molded product with at least one of the first metal plate and the second metal plate. Specifically, the first metal plate and the metal channel wall may be integrally molded metal parts. The second metal plate and the metal channel wall may be integrally molded metal parts. Each of the first metal plate and a portion of the metal channel wall and the second metal plate and the remainder of the metal channel wall may be a single piece of metal. Integral molded products of metal include roll molded products, die cast molded products, machined products, rolled products, press molded products, or extruded products.

When the metal forming the metal flow path wall and the metal forming at least one of the first metal plate and the second metal plate are different, the temperature control device preferably has an electrical insulation layer. The electrically insulating layer is interposed between the metal channel wall and at least one of the first metal plate and the second metal plate. As a result, dissimilar metals are less likely to come into physical contact with each other. Therefore, the occurrence of electrolytic corrosion between dissimilar metals can be suppressed. As a result, the first metal plate and the second metal plate are less likely to corrode.
The electrical insulating layer is not particularly limited as long as it is a film having electrical insulating properties, and examples thereof include an adhesive layer, an insert joining layer, an elastomer packing, and the like.

(1.2.2) Partition member The temperature control device of the second configuration may further have a partition member. The partition member partitions the internal flow path and controls the flow direction of the heat exchange medium flowing through the internal flow path. This allows the internal flow path to be designed more freely.
In the second configuration, the partition member is arranged between the first metal plate and the second resin plate within the internal flow path. The partition member is, for example, fixed to at least one of the first metal plate and the second resin plate.
The partition member and fixing method are the same as those exemplified as the partition member and fixing method of the first configuration.

(1.2.3) Example of Second Configuration An example of the temperature control device of the second configuration will be described with reference to FIGS. 1, 6, and 7. FIG.
Note that FIG. 6 is a cross section of the temperature control device 1D according to the fourth embodiment taken along a cutting line similar to the cutting line C3-C3 shown in FIG. FIG. 7 is a cross section of the temperature control device 1E according to the fifth embodiment taken along a cutting line similar to the cutting line C3-C3 shown in FIG.

(1.2.3.1) Fourth Embodiment A temperature control device 1D according to a fourth embodiment is similar to that of the temperature control device according to the first embodiment, except that the channel wall portion is mainly made of metal. Same as 1A.
The temperature control device 1D includes a first metal plate 11A, a second metal plate 12A, a metal channel wall portion 13D, a resin fixing portion 14, and an electrical insulation layer 15, as shown in FIG. The first metal plate 11A and the metal channel wall portion 13D are an integrally molded metal product 101. As shown in FIG. The metal integrally molded product 101 is, for example, a roll-molded product, a die-cast molded product, a machined product, a rolled material, a press-molded product, or an extruded material.

The metal channel wall portion 13D is the same as the resin channel wall portion 13A except that it is made of metal. The metal forming the metal channel wall portion 13D is the same as the metal forming the first metal plate 11A. In the fourth embodiment, the metal forming the metal channel wall portion 13D and the metal forming the second metal plate 12B are different.

The electrical insulating layer 15 is interposed between the metal channel wall portion 13D and the second metal plate 12B. This can suppress the occurrence of electrolytic corrosion between the metal flow path wall portion 13D and the second metal plate 12B. As a result, the metal channel wall portion 13D and the second metal plate 12B are less likely to corrode. The electrical insulating layer 15 is the same as the electrical insulating layer exemplified.

(1.2.3.1) Fifth Embodiment A temperature control device 1E according to a fifth embodiment is mainly characterized by the fact that the channel wall is made of metal and the shape of the second metal plate is different. Others are the same as the temperature control device 1A according to the first embodiment.
The temperature control device 1E includes a first metal plate 11A, a second metal plate 12B, a metal channel wall portion 13D, and a resin fixing portion 14, as shown in FIG. The second metal plate 12B and the metal channel wall portion 13D are an integrally molded metal product 102 . The metal integrally molded product 102 is, for example, a roll-molded product, a die-cast molded product, a machined product, a rolled material, a press-molded product, or an extruded material.

The metal channel wall portion 13D is the same as the resin channel wall portion 13A except that it is made of metal. The metal forming the metal channel wall portion 13D is the same as the metal forming the second metal plate 12B.

In the fifth embodiment, the metal forming the metal flow path wall portion 13D and the metal forming the second metal plate 12B are of the same kind. Therefore, in the temperature control device 1E, unlike the temperature control device 1D according to the fourth embodiment, the electrical insulating layer 15 is not interposed between the metal flow path wall portion 13D and the first metal plate 11A. Electrolytic corrosion is less likely to occur between the flow path wall portion 13D and the first metal plate 11A.

(1.3) Third Configuration In the third configuration, the temperature control device includes a first metal plate, a second resin plate, a resin channel wall portion, and a resin fixing portion. In the third configuration, the second plate is made of resin, and the channel wall is made of resin.
The temperature control device of the third configuration is the same as the temperature control device of the first configuration except that the second resin plate is used instead of the second metal plate.
Each of the first metal plate, the resin fixing portion, and the internal flow channel is the same as those exemplified as the first metal plate, the resin fixing portion, and the internal flow channel of the first configuration.

(1.3.1) Second resin plate The second resin plate can make the temperature control device lighter than when the second metal plate is used.

The second resin plate is a plate-like object made of resin.
The shape of the second resin plate may be, for example, a flat plate shape. The size of the second metal plate is appropriately selected according to the object to be heat exchanged.

The second resin plate and the resin flow channel wall are separate bodies, and at least one step of the second resin plate is formed along the outer circumference of the contact portion between the second resin plate and the resin flow channel wall. It is preferable to include a step (hereinafter referred to as "third step"). In other words, it is preferable that the second inclined surface of the third step of the second resin plate is formed continuously with the outer peripheral surface of the resin flow path wall. Thereby, the stress caused by the internal pressure is easily dispersed by the second inclined contact surface portion. Therefore, the stress caused by the internal pressure is less likely to be concentrated on the second contact plane portion of the joint, and breakage (for example, gaps) of the joint is less likely to occur. As a result, the airtightness of the temperature control device is further improved.
In particular, from the viewpoint of further improving the airtightness of the temperature control device, when the inclination angle of the second inclined surface is 90°, the third step is preferably formed along the outer peripheral surface of the resin flow path wall. preferable.
At least one step of the second resin plate may further include a step different from the third step.

The second resin plate is a molded body of the third resin composition. The second resin plate includes an injection molded product or a press molded product.
The resin component of the third resin composition is not particularly limited, and is the same as the resin exemplified as the resin component of the first resin composition.
The third resin composition may contain at least one of a filler and a compounding agent, if necessary. Examples of fillers and compounding agents include those exemplified as fillers and compounding agents that can be contained in the resin composition.

(1.3.2) Resin Channel Wall Portion The resin channel wall portion may be the same as those exemplified as the resin channel wall portion of the first configuration.

The resin channel wall may be separate from the second resin plate. In this case, the method for fixing the resin channel wall portion to the second resin plate is not particularly limited, and examples thereof include welding, a method using a known adhesive, and the like.

The resin channel wall and the second resin plate may be integrally molded resin. Integrally-molded articles of resin include injection-molded articles and press-molded articles.

(1.3.3) Partition member The temperature control device of the third configuration may further have a partition member. The partition member partitions the internal flow path and controls the flow direction of the heat exchange medium flowing through the internal flow path. This allows the internal flow path to be designed more freely.
In a third configuration, the partition member is positioned between the first metal plate and the second metal plate within the internal channel. The partition member is, for example, fixed to at least one of the first metal plate and the second metal plate.
The partition member and fixing method are the same as those exemplified as the partition member and fixing method of the first configuration.

(1.3.4) Example of Third Configuration An example of the temperature control device of the third configuration will be described with reference to FIGS. 1 and 8. FIG.
Note that FIG. 8 is a cross section of the temperature control device 1F according to the sixth embodiment taken along a cutting line similar to the cutting line C3-C3 shown in FIG.

(1.3.4.1) Sixth Embodiment A temperature control device 1F according to a sixth embodiment is mainly different from the second plate except that the second plate is made of resin and the shape of the second plate is different. , are the same as the temperature control device 1A according to the first embodiment.
The temperature control device 1F includes a first metal plate 11A, a second resin plate 12F, a resin channel wall portion 13A, and a resin fixing portion 14, as shown in FIG. The second resin plate 12F and the resin flow path wall portion 13A are an integrally molded product 103 of resin. The resin integrally molded product 103 is, for example, an injection molded product or a press molded product.

The second resin plate 12F is the same as the second metal plate 12B except that it is made of resin. The resin forming the second resin plate 12F is the same as the resin forming the resin channel wall portion 13A.

(1.4) Fourth Configuration In the fourth configuration, the temperature control device includes a first metal plate, a second resin plate, a metal channel wall portion, and a resin fixing portion. In the fourth configuration, the second plate is made of resin and the channel wall is made of metal.
The temperature control device of the fourth configuration is the same as the temperature control device of the second configuration except that the second resin plate is used instead of the second metal plate.
Each of the first metal plate, the metal channel wall portion, the resin fixing portion, and the internal channel is the same as those exemplified as the first metal plate, the resin fixing portion, and the internal channel of the second configuration.
The second resin plate is the same as that exemplified as the second resin plate of the third configuration.

(1.4.1) Example of Fourth Configuration An example of the temperature control device of the fourth configuration will be described with reference to FIGS. 1 and 9. FIG.
Note that FIG. 9 is a cross section of the temperature control device 1G according to the seventh embodiment taken along a cutting line similar to the cutting line C3-C3 shown in FIG.

(1.4.1.1) Seventh Embodiment A temperature control device 1G according to the seventh embodiment is mainly characterized by the fact that the channel wall is made of metal and the second plate is made of resin. Others are the same as the temperature control device 1A according to the first embodiment.
The temperature control device 1G includes a first metal plate 11A, a second resin plate 12G, a metal channel wall portion 13D, and a resin fixing portion 14, as shown in FIG. The first metal plate 11A and the metal channel wall portion 13D are an integrally molded metal product 101. As shown in FIG.

The second resin plate 12G is the same as the second resin plate 12A except that it is made of resin. The material constituting the second resin plate 12G is the same as those exemplified as the material of the second resin plate.

1A to 1G temperature control device 11A, 11C first plate 110 step 12A to 12C, 12F, 12G second plate 120 step 13A to 13D channel wall portion 131 connecting portion 14 resin fixing portion 15 electrical insulating layer R1 internal channel

Claims (9)

a metal first plate;
a second plate;
a channel wall sandwiched between the first plate and the second plate;
a resin fixing portion fixing the second plate to the first plate;
An internal channel for circulating a heat exchange medium is formed by at least one of the first plate and the second plate and the channel wall,
The temperature control device, wherein the first plate has at least one step at a portion that contacts the resin fixing portion. The first plate and the flow channel wall are separate bodies,
2. The temperature control device according to claim 1, wherein said at least one step includes a step formed along an outer circumference of a contact portion between said first plate and said channel wall. 3. The temperature control device according to claim 1, wherein said first plate has a fine concavo-convex structure in a portion that contacts said resin fixing portion. The temperature control device according to any one of claims 1 to 3, wherein the second plate and the channel wall are integrally molded metal parts. The second plate is made of metal,
The temperature control device according to any one of claims 1 to 4, wherein the channel wall is made of resin. 6. The temperature control device according to claim 5, wherein said second plate has at least one step at a portion that contacts said resin fixing portion. The temperature control device according to any one of claims 4 to 6, wherein the second plate has a fine concavo-convex structure in a portion that contacts the resin fixing portion. The temperature control device according to any one of claims 1 to 3, wherein the second plate and the flow path wall are integrally molded products of resin. The temperature control device according to any one of claims 1 to 8, wherein the resin fixing portion is formed by insert molding.