JP6978305B2 - Heat transfer device - Google Patents

Description

The present invention relates to a heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.

In the specification and claims, the term "aluminum" shall include aluminum alloys in addition to pure aluminum.

In addition, the top and bottom of each drawing are referred to as top and bottom.

For example, as a battery device for driving an electric vehicle of a hybrid vehicle, an electric vehicle, etc., a plurality of small cell cells made of various secondary batteries such as a lithium ion secondary battery are connected in series or in parallel to form an assembled battery. Things are used. In particular, in electric vehicles, since the need for extending the cruising range requires a large capacity of assembled batteries, a plurality of assembled batteries are combined so as to be connected in series or in parallel.

By the way, since the performance and life of a secondary battery change depending on the operating temperature, it is necessary to use the secondary battery at an appropriate temperature in order to use it efficiently for a long period of time.

Therefore, for the purpose of reducing the temperature difference of all the cells in the assembled battery as described above, the outer surface of the top wall is a flat heat transfer surface, and the metal has a refrigerant passage through which the refrigerant flows. A cooling device including a cooling member manufactured by the manufacturer has been proposed (see Patent Document 1).

In the cooling device described in Patent Document 1, when cooling a large number of cells, it is necessary to increase the number of cooling members, the number of parts increases, and the man-hours for connecting pipes for supplying the refrigerant to all the cooling members increases. It will increase and the cost will increase.

Japanese Patent No. 6020942

An object of the present invention is to solve the above-mentioned problems and to provide a heat transfer device capable of reducing the cost even when the number of heat receiving bodies that receive the cold or hot heat of the heat transfer medium increases.

The present invention comprises the following aspects in order to achieve the above object.

1) A heat transfer device that transfers the cold or hot heat of the heat transfer medium to the heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow passage through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. A heat transfer device in which a member is formed of a plate-shaped composite including a composite material in which aluminum and carbon particles are composited.

2) The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the lower surface of the heat transfer medium flower serves as the heat transfer surface, and a horizontal first contact portion is provided at the end of the heat transfer member. Both contact portions are integrally provided so that the two contact portions are located in the same horizontal plane as the first contact portion, and the upper surface of the first contact portion is in thermal contact with the heat transfer surface of the heat transfer medium flower. The heat transfer device described in 1) above.

3) The outer shape of the cross-sectional shape of the heat transfer medium flower is square, and one of the two vertical faces of the heat transfer medium flower is the heat transfer surface, which is located at the end of the heat transfer member. A vertical first contact portion is provided, and both contact portions are integrally provided so that the second contact portion is located in a horizontal plane formed at right angles to the first contact portion, and the second contact portion side in the first contact portion is provided. The heat transfer device according to 1) above, wherein the side surface opposite to the side surface facing the surface is in thermal contact with the heat transfer surface of the heat transfer medium flower.

4) The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the lower surface of the heat transfer medium flower becomes the first part of the heat transfer surface, and of the two vertical planes of the heat transfer medium flower. One of the vertical surfaces becomes the second portion of the heat transfer surface, an angle-shaped first contact portion consisting of a horizontal portion and a vertical portion is provided at the end of the heat transfer member, and the second contact portion is the first contact portion. Both contact portions are integrally provided so as to be located in the same horizontal plane as the horizontal portion of the heat transfer medium, and the upper surface of the horizontal portion of the first contact portion thermally contacts the first portion of the heat transfer surface of the heat transfer medium flower. The heat transfer device according to 1) above, wherein the side surface of the vertical portion facing the second contact portion is in thermal contact with the second portion of the heat transfer surface of the heat transfer medium flower.

5) The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the upper surface of the heat transfer medium flower becomes the first part of the heat transfer surface, and of the two vertical planes of the heat transfer medium flower. One of the vertical surfaces becomes the second part of the heat transfer surface, and the lower surface of the heat transfer medium flower becomes the third part of the heat transfer surface, which are arranged at the ends of the heat transfer members at intervals in the vertical direction. A channel-shaped first contact portion consisting of two horizontal portions and a vertical portion connecting the side edges of both horizontal portions is provided, and the second contact portion is in the same horizontal plane as the lower horizontal portion of the first contact portion. Both contact portions are integrally provided so as to be located, and the lower surface of the upper horizontal portion of the first contact portion is in thermal contact with the first portion of the heat transfer surface of the heat transfer medium flower, and the lower horizontal portion is in contact with the first portion. The upper surface of the heat transfer medium is in thermal contact with the third portion of the heat transfer surface of the heat transfer medium flower, and the side surface of the vertical portion of the first contact portion facing the second contact portion is the heat transfer of the heat transfer medium flower. The heat transfer device according to 1) above, which is in thermal contact with the second portion of the hot surface.

6) The outer shape of the cross-sectional shape of the heat transfer medium flower is circular, and the superior arc-shaped portion of the outer peripheral surface of the heat transfer medium flower from the lower end to beyond the upper end serves as the heat transfer surface and one side of the heat transfer surface. The edge is located at the lower end of the outer shape of the heat transfer medium flower, and one of the two side edges that are laterally open and sandwich the opening is transferred to the end of the heat transfer member. A superior arc-shaped first contact portion located at the lower end of the heat transfer medium flower is provided, and the second contact portion is the heat transfer medium flower of the two side edges sandwiching the opening in the first contact portion. Both contact portions are integrally provided so as to be located in a horizontal plane connected to the side edge portion located at the lower end portion, and the surface of the first contact portion facing the center of curvature is the heat transfer surface of the heat transfer medium flower. The heat transfer device according to 1) above, which is in thermal contact.

7) The two heat transfer medium flow bodies are arranged so as to be parallel to each other so that the longitudinal directions face the same direction, first contact portions are provided at both ends of the heat transfer member, and the second contact of the heat transfer member is provided. The heat transfer device according to any one of 2) to 6) above, wherein the unit is arranged between both heat transfer medium distributors.

8) The heat transfer device according to any one of 2) to 6) above, which comprises one heat transfer medium flower and a plurality of heat transfer members arranged on one side of the heat transfer medium flower.

9) The heat transfer device according to 3) above, comprising one heat transfer medium flower and at least one heat transfer member arranged on both sides of the heat transfer medium flower.

10) An accommodating compartment for accommodating the heat receiving body is provided on the upper surface of the second contact portion of the heat conductive member, and the accommodating compartment is provided in a rising shape so as to be in thermal contact with the second contact portion of the heat conductive member. It is provided with a partition wall that partitions between adjacent storage compartments and is in thermal contact with at least a part of the side surface of the heat receiving body, and the partition wall includes a composite material in which aluminum and carbon particles are composited. The heat transfer device according to any one of 1) to 9) above, which is formed of a plate-shaped composite.

11) Of the above 1) to 10), the carbon particles in the composite material of the composite forming the heat transfer member consist of at least one selected from the group consisting of carbon nanotubes, graphene, graphite particles and carbon fibers. The heat transfer device according to any one.

12) The heat transfer device according to any one of 1) to 11) above, wherein the composite material of the composite material forming the heat conductive member is an aluminum matrix and carbon particles dispersed in the aluminum matrix.

13) The composite material of the composite forming the heat transfer member is a plurality of carbon particle dispersion layers in which the carbon particles are dispersed in the surface direction in the aluminum material constituting the aluminum matrix, and the aluminum material constituting the aluminum matrix. The heat transfer device according to 12) above, which has a plurality of aluminum layers formed by the above 12), wherein the carbon particle dispersion layer and the aluminum layer are alternately arranged in a laminated manner in the thickness direction of the composite. ..

14) It consists of a plurality of assembled batteries and the heat transfer device described in any one of 1) to 13) above, and each assembled battery is composed of a plurality of cells, and the cells are distributed as a heat transfer medium. Heat transfer medium of the body An assembled battery device that is a heat receiver that receives the cold or hot heat of the heat transfer medium flowing in the flow passage.

According to the heat transfer devices 1) to 13) above, when the number of heat receiving bodies increases, it can be dealt with by increasing the number of heat conductive members, so that the number of heat transfer medium flow bodies increases. Can be suppressed. Therefore, as compared with the cooling device described in Patent Document 1, it is possible to suppress an increase in the number of parts and an increase in man-hours for connecting pipes for supplying the heat transfer medium to the heat transfer medium passage of all the cooling medium flow bodies. It will be possible and the cost will be low.

Further, since the heat conductive member is formed of a plate-shaped composite containing a composite material in which aluminum and carbon particles are composited, the heat conductivity becomes extremely high, and the heat transfer medium flower and the heat receiver The thermal conductivity between them will be excellent. Therefore, a relatively large number of heat receiving bodies can be efficiently cooled or heated.

According to the heat transfer device of 9) above, it becomes possible to cool or heat a large number of heat receiving bodies by the heat transfer medium flowing in one heat transfer medium flow body, and the number of parts is reduced.

According to the heat transfer device of 10) above, a plurality of heat receiving bodies can be efficiently cooled or heated, and the temperatures of the plurality of heat receiving bodies can be made uniform.

According to the heat transfer device of 11) above, the thermal conductivity of the complex can be improved. In addition, it is possible to reliably perform the composite of aluminum and carbon particles in the composite material of the composite.

According to the heat transfer device of 12) above, the bias of the carbon particles in the aluminum matrix in the composite material of the composite is reduced, and the thermal conductivity of the composite becomes uniform as a whole.

According to the heat transfer device of 13) above, the carbon particle dispersion layer of the composite material and the aluminum layer are alternately arranged in a laminated manner over the entire thickness direction of the plate-like composite, so that the carbon particle dispersion is performed. It is possible to increase the number of carbon particle dispersion layers while reducing the thickness of the layers as much as possible, and it is possible to effectively increase the thermal conductivity of the composite.

It is a perspective view which shows the heat transfer apparatus by this invention. FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG. FIG. 3 is an enlarged cross-sectional view showing a part of a heat conductive member used in the heat transfer device of FIG. 1. It is a perspective view which shows the use example of the heat transfer apparatus of FIG. It is a perspective view which shows the modification of the heat conduction member used for the heat transfer apparatus of FIG. It is a figure corresponding to FIG. 2 which shows the 2nd Embodiment of the heat transfer apparatus by this invention. It is a figure corresponding to FIG. 2 which shows the 3rd Embodiment of the heat transfer apparatus by this invention. It is a figure corresponding to FIG. 2 which shows the 4th Embodiment of the heat transfer apparatus by this invention. It is a figure corresponding to FIG. 2 which shows the 5th Embodiment of the heat transfer apparatus by this invention. It is a perspective view which shows the 6th Embodiment of the heat transfer apparatus by this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In addition, the same objects and the same parts are designated by the same reference numerals throughout the drawings.

1 and 2 show the heat transfer device according to the present invention, and FIG. 3 shows the configuration of the heat transfer member used in the heat transfer device of FIGS. 1 and 2.

In FIG. 1, the heat transfer device (1) transfers the cold heat or heat of the heat transfer medium to a plurality of heat receivers, for example, a single cell, so as to be parallel to each other with the longitudinal directions facing the same direction. Two heat transfer medium distributors (2) arranged in the heat transfer medium distributor (2) and a plurality of heat transfer medium distributors (2) arranged side by side in the longitudinal direction between the two heat transfer medium distributors (2), in this case, 2 It is equipped with two heat transfer members (3).

As shown in FIGS. 1 and 2, the heat transfer medium flow medium (2) is formed of a metal, for example, aluminum, in a square tube shape so that the outer shape of the cross section is square, and heat is transferred inside. A heat transfer medium flow passage (4) extending in the longitudinal direction of the medium flower (2) is provided. The lower surface (2a) of the heat transfer medium distributor (2) is the heat transfer surface (5). A heat transfer medium that applies cold heat or heat to the heat receiving body flows through the heat transfer medium flow passage (4).

The heat transfer member (3) has two first contact portions (6) that are in thermal contact with the heat transfer surface (5) of each heat transfer medium flower (2) and receive the cold heat or heat of the heat transfer medium. , And a plate containing a composite material that has a second contact portion (7) that is in thermal contact with a plurality of heat receivers and transfers cold or hot heat to the heat receivers, and is a composite of aluminum and carbon particles. It is formed by a complex (20).

The first contact portion (6) and the second contact portion (7) of the heat conductive member (3) are each horizontal, and the composite is such that both the contact portions (6) and (7) are located in the same horizontal plane. It is provided integrally using (20). The upper surface of the first contact portion (6) is in thermal contact with the heat transfer surface (5) of the heat transfer medium flower (2). The upper surface of the first contact portion (6) of the heat conductive member (3) is bonded to the heat transfer medium flow body (2) by a method such as brazing, soldering, diffusion bonding, ultrasonic bonding, laser bonding or the like. Is preferable.

As shown in FIG. 3, the composite (20) forming the heat conductive member (3) is a plate-shaped composite containing an aluminum matrix (22) and carbon particles (23) dispersed in the aluminum matrix (22). It consists of a main surface skin layer (24) made of aluminum covering a material (21) and two main surfaces (21a) facing opposite sides of the composite material (21). The composite material (21) is formed by combining aluminum and carbon particles (23).

The composite material (21) is composed of a plurality of carbon particle dispersion layers (25) in which carbon particles (23) are dispersed in a plane direction in an aluminum material constituting the aluminum matrix (22), and aluminum constituting the aluminum matrix (22). A plurality of aluminum layers (26) formed of the material are provided in a laminated manner.

The carbon particle dispersion layer (25) and the aluminum layer (26) are arranged in a state of being alternately laminated over the entire thickness direction of the composite material (21), and the aluminum layer is arranged at the lower end of the upper and lower ends. (26) is present, and the carbon particle dispersion layer (25) is arranged so as to be present at the upper end thereof. In each carbon particle dispersion layer (25), the carbon particles (23) are dispersed in the aluminum matrix (22) in the plane direction of the composite material (21), and are almost dispersed in the thickness direction of the composite material (21). I haven't. Carbon particles (23) are substantially absent in each aluminum layer (26). Then, the plurality of carbon particle dispersion layers (25) and the plurality of aluminum layers (26) are joined and integrated by, for example, sintering composite. The thickness of the carbon particle dispersion layer (25) is not limited, but is preferably 1 to 100 μm. The thickness of the aluminum layer (26) is not limited, but is preferably 5 to 200 μm.

The main surface epidermis layer (24) of the composite (20) consists of an aluminum plate (27) that is formed separately from the composite (21) and is joined and integrated into the composite (21), for example by sintering. .. That is, the upper main surface skin layer (24) in FIG. 3 is joined and integrated with the carbon particle dispersion layer (25) at the upper end of the figure, and the lower main surface skin layer (24) in the figure is at the lower end of the figure. It is joined and integrated with the aluminum layer (26). The lower main surface epidermis layer (24) is not always required.

The type of carbon particles used in the composite material (21) is not limited, but it is desirable to use one having as high a thermal conductivity as possible, that is, one having a high thermal conductivity. In particular, as the carbon particles, it is preferable to use natural graphite particles and artificial graphite particles. As the natural graphite particles, scaly graphite particles and the like are used. As the artificial graphite particles, isotropic graphite particles, anisotropic graphite particles, pyrolyzed graphite particles and the like are used. When the carbon particles are natural graphite particles and artificial graphite particles, natural graphite particles and artificial graphite particles having an average particle diameter of 10 μm or more and 3 mm or less are preferably used.

Further, as the carbon particles of the composite material (21), at least one selected from the group consisting of carbon fibers, carbon nanotubes and graphene may be used. As the carbon fiber, pitch-based carbon fiber, PAN-based carbon fiber and the like are used. As the carbon nanotubes, single-walled carbon nanotubes, multi-walled carbon nanotubes, vapor-grown carbon fibers (VGCF (registered trademark)) and the like are used. When the carbon particles are carbon fibers, short carbon fibers having an average fiber length of 10 μm or more and 2 mm or less are particularly preferably used. When the carbon particles are carbon nanotubes, carbon nanotubes having an average length of 1 μm or more and 10 μm or less are particularly preferably used.

Although not shown, the method for producing the composite (20) is to apply a coating liquid to one side of an aluminum foil made of a material constituting the aluminum matrix (22) to form a coating foil on which a carbon particle layer is formed. The step of obtaining, the step of forming a laminated body in which a plurality of coated foils are laminated so that the carbon particle layers face in the same direction, and the carbon particle layer in the aluminum foil located at one end of the laminated body in the stacking direction. The aluminum plate (27), which is one of the main surface skin layers (24), is laminated on the carbon particle layer of the coated foil facing outward, and is located at the other end of the laminated body in the lamination direction. The step of laminating the aluminum plate (27) to be the other main surface skin layer (24) on the surface of the aluminum foil on the side where the carbon particle layer is not provided, and the laminated body and the main surface skin layer (24). The aluminum plate (27) is sintered by heating it in a predetermined sintering atmosphere (eg, non-oxidizing atmosphere) with a pressure heating sintering device or the like, thereby baking a plurality of coated foils at once. It includes a step of forming and integrating both aluminum plates (27) and a coating foil by sintering and integrating them.

The coating liquid contains carbon particles (23), a binder and a solvent for a binder in a mixed state. For example, carbon particles (23), a binder and a solvent are put in a mixing container and stirred by a stirring mixer. Obtained by mixing. If necessary, a dispersant, a surface conditioner, or the like is added to the coating liquid.

The binder is for imparting an adhesive force to one side of the aluminum foil to the carbon particles (23) and suppressing the carbon particles (23) from falling off from the aluminum foil. The binder is usually made of a resin such as an organic resin. Specifically, polyethylene oxide, polyvinyl alcohol, an acrylic resin, or the like can be used as the binder.

The solvent dissolves the binder. Specifically, as the solvent, a hydrophilic solvent (eg, isopropyl alcohol, water), an organic solvent and the like can be used.

As the stirring mixer, a disper, a planetary mixer, a bead mill or the like can be used.

The sintering method of the laminate and both aluminum plates (27) can be obtained from a vacuum hot press method, a discharge plasma sintering method (SPS method), a hot hydrostatic pressure sintering method (HIP method), an extrusion method, a rolling method, or the like. Be selected. The discharge plasma sintering method is also called a pulse energization sintering method.

The binder present in the laminate is removed from the laminate by sublimation or dispersion while heating the laminate so that the temperature of the laminate rises from approximately room temperature to the sintering temperature of the laminate in this step. Will be done.

In the step of sintering the laminate and both aluminum plates (27), a part of the metal material of the aluminum foil permeates into the carbon particle layer by heating the laminate as described above, and the inside of the carbon particle layer. It is filled with fine voids (eg, gaps between carbon particles (23) in the carbon particle layer) existing in the voids, and the voids are substantially extinguished. As a result, the density of the composite material (21) is increased and the strength of the composite material (21) is improved.

Further, when a part of the material constituting the aluminum foil permeates into the carbon particle layer, the carbon particles (23) in the carbon particle layer become the aluminum of the composite material (21) of the obtained composite (20). It becomes dispersed in the plane direction in the matrix (22), the carbon particle layer becomes the carbon particle dispersion layer (25) of the composite material (21), and the aluminum foil becomes the aluminum layer (26) of the composite material (21). Become. Further, the aluminum plate (27) becomes the main surface epidermis layer (24).

Therefore, in the composite material (21), the carbon particle dispersion layer (25) and the aluminum layer (26) are alternately laminated over the entire thickness direction of the composite material (21) as described above. Arrange. In this way, the complex (20) is created.

Hereinafter, an example of using the heat transfer device (1) described above will be described with reference to FIG.

In this usage example, the heat transfer medium flow path of the heat transfer medium flower (2) is connected to the cell (11) constituting the same number of assembled batteries (10) as the heat transfer member (3) of the heat transfer device (1). (4) It transfers the cold heat or heat of the heat transfer medium flowing inside. The cell (11) is composed of a plurality of flat square cells such as a square lithium ion secondary battery, and all the cells (11) are connected in series by using the terminal (12) provided at the upper end. The assembled battery (10) is configured by being connected in parallel, and the lower surface of the assembled battery (10), that is, the lower surface of each cell (11) is a heat receiving surface.

When cooling all the cell cells (11) constituting the above-mentioned assembled battery (10), the heat receiving surface on the lower surface of each assembled battery (10) is the second contact portion (7) of each heat transfer member (3). It is arranged so as to be in thermal contact with the upper surface of the heat transfer medium, and supplies a cooling liquid which is a heat transfer medium capable of supplying cold heat to the heat transfer medium flow passage (4) of the heat transfer medium flower (2). Then, while the coolant is flowing through the heat transfer medium flow passage (4) of the heat transfer medium flower (2), the cold heat of the coolant is transferred to the first contact portion (6) of each heat conductive member (3). ) And the second contact portion (7) to all the cell cells (11) of each set battery (10), and all the cell cells (11) of each set battery (10) are cooled.

In cold regions, if it is necessary to heat the cell (11) to an appropriate temperature before starting use, heat can be supplied to the heat transfer medium flow path (4) of the heat transfer medium flower (2). A high-temperature heating liquid that is a heat medium is supplied. Then, while the heating liquid is flowing through the heat transfer medium flow passage (4) of the heat transfer medium flower (2), the heat of the heating liquid of each set battery (10) is the same as in the case of cooling. It is transmitted to all the cells (11), and all the cells (11) of the assembled battery (10) are heated to an appropriate temperature.

In the heat transfer device (1) shown in FIG. 1, only one heat transfer medium flower (2) is used, and the first contact portion (6) is applied only to one end of the heat transfer member (3). May be provided.

FIG. 5 shows a modified example of the heat conductive member used in the heat transfer device of FIG.

In the case of the heat conductive member (30) shown in FIG. 5, a storage section (31) for accommodating each cell (11) of the assembled battery (10) is provided on the upper surface of the second contact portion (7). There is. Adjacent storage compartments (31) are provided in a rising shape so as to be in thermal contact with the second contact portion (7) of the heat conductive member (30), and are provided on at least a part of the side surface of the cell (11). It is partitioned by a partition wall (32) that is in thermal contact. The partition wall (32) is formed of a plate-like composite (20) containing a composite material in which aluminum and carbon particles are composited, similar to the heat conductive member (30).

In the example shown in FIG. 5, the heat transfer medium flower (2) in the storage compartment (31) located at at least one end of both ends in the arrangement direction of the cells (11) in the assembled battery (10). The side openings and the lateral openings of the containment compartment (31) containing the cell (11) of at least one of the assembled batteries (10) were formed by the complex (20) described above, respectively. It is closed by a closed wall (33).

Other configurations are the same as those of the heat conductive member (3) of the above-described embodiment.

6 to 10 show other embodiments of the heat transfer device according to the present invention.

In FIG. 6, one of the two vertical planes of the heat transfer medium flower (2), in which the vertical plane (2b) facing the second contact portion (7) side is the heat transfer plane (40). It has become. Further, vertical first contact portions (41) are provided at both ends of the heat transfer member (3), and one side surface of the first contact portion (41), here, the second contact portion (7) side. The side facing the opposite side is in thermal contact with the heat transfer surface (40) of the heat transfer medium flower (2). The second contact portion (7) is located in a horizontal plane forming a right angle to the first contact portion (41), and both contact portions (41) and (7) are integrally provided by using the complex (20). There is. The first contact portion (41) of the heat conductive member (3) must be bonded to the heat transfer medium flower (2) by a method such as brazing, soldering, diffusion bonding, ultrasonic bonding, laser bonding, or the like. preferable.

In FIG. 7, the lower surface (2a) of the heat transfer medium flower (2) becomes the first portion (45a) of the heat transfer surface (45), and one of the two vertical surfaces, here, the second. The vertical surface (2c) facing the side opposite to the contact portion (7) side is the second part (45b) of the heat transfer surface (45). Further, an angled first contact portion (46) composed of a horizontal portion (46a) and a vertical portion (46b) is provided at both ends of the heat transfer member (3), and the horizontal portion of the first contact portion (46) is provided. The upper surface of (46a) is in thermal contact with the first portion (45a) of the heat transfer surface (45) of the heat transfer medium flower (2), and the second contact portion (7) of the vertical portion (46b). ) Side facing surface is in thermal contact with the second portion (45b) of the heat transfer surface (45). The second contact portion (7) is located in the same horizontal plane as the horizontal portion (46a) of the first contact portion (46), and both contact portions (45) and (7) are integrated using the complex (20). It is provided in. The horizontal portion (46a) and vertical portion (46b) of the first contact portion (46) of the heat conductive member (3) are heat transfer media by methods such as brazing, soldering, diffusion bonding, ultrasonic bonding, and laser bonding. It is preferably bonded to the distribution body (2).

In FIG. 8, the upper surface (2d) of the heat transfer medium flower (2) becomes the first portion (50a) of the heat transfer surface (50), and of the two vertical planes of the heat transfer medium flower (2). On the other hand, here, the vertical surface (2c) facing the side opposite to the second contact portion (7) side becomes the second part (50b) of the heat transfer surface (50), and the lower surface (2a) also transfers heat. It is the third part (50c) of the thermal surface (50). At both ends of the heat conductive member (3), two horizontal portions (51a) (51b) and both horizontal portions (51a) (51b) arranged at intervals in the vertical direction are connected to each other. A channel-shaped first contact portion (51) composed of a vertical portion (51c) is provided. The lower surface of the upper horizontal portion (51a) of the first contact portion (51) thermally contacts the first portion (50a) of the heat transfer surface (50) of the heat transfer medium flower (2), and the lower horizontal portion thereof. The upper surface of (51b) is in thermal contact with the third portion (50c) of the heat transfer surface (50), and the surface of the vertical portion (51c) facing the second contact portion (7) is the heat transfer surface ( It is in thermal contact with the second part (50b) of 50). The second contact portion (7) is located in the same horizontal plane as the lower horizontal portion (51b) of the first contact portion (51), and both contact portions (51) (7) use the complex (20). It is provided integrally. The upper and lower horizontal portions (51a) (51b) and vertical portions (51c) of the first contact portion (51) of the heat conductive member (3) are brazed, soldered, diffuse bonded, ultrasonic bonded, laser bonded, etc. It is preferably bonded to the heat transfer medium flower (2) by the method.

In FIG. 9, the cross-sectional shape of the outer shape of the heat transfer medium flower (56) of the heat transfer device (55) is circular, and the heat transfer medium flow passage (4) is formed inside the circular shape. The superior arc-shaped portion extending from the lower end to the second contact portion (7) side of the heat conductive member (3) from the lower end to the upper end of the outer peripheral surface of the heat transfer medium flow body (56) is the heat transfer surface (57). That is, one side edge of the heat transfer surface (57) is located at the lower end of the outer shape of the cross-sectional shape of the heat transfer medium flower (56), and the other side edge is the second contact portion with respect to the upper end. It is located on the (7) side. At both ends of the heat conductive member (3), one of the two side edges that are open to the second contact portion (7) and sandwich the opening is the lower end of the heat transfer medium flower (56). A superior arc-shaped first contact portion (58) located at is provided. The second contact portion (7) is located in a horizontal plane connected to the lower edge portion of the first contact portion (58), and both contact portions (58) (7) use the complex (20). It is provided integrally. The first contact portion (58) of the heat conductive member (3) must be bonded to the heat transfer medium flower (56) by a method such as brazing, soldering, diffusion bonding, ultrasonic bonding, laser bonding, or the like. preferable.

Other configurations are the same as those of the above-described embodiment.

In FIG. 10, the heat transfer device (60) includes one heat transfer medium flower (61) and a plurality of heat transfer members (62) arranged on both sides of the heat transfer medium flower (61). There is.

The heat transfer medium flow medium (61) is made of metal, for example, aluminum, and is formed in a square tube shape so that the outer shape of the cross section is long in the vertical direction. ), A plurality of heat transfer medium flow passages (63) extending in the longitudinal direction are provided side by side in the vertical direction, and both side surfaces are heat transfer surfaces (64). A heat transfer medium that applies cold heat or heat to the heat receiving body flows through each heat transfer medium flow passage (63).

The heat conductive member (62) is a vertical first contact portion (65) that thermally contacts the heat transfer surface (64) of the heat transfer medium flower (61) and receives the cold heat or heat of the heat transfer medium. , And a horizontal second contact portion (66) that is in thermal contact with a plurality of heat receivers and transfers cold or hot heat to the heat receiver, the second contact portion (66) being the first contact portion ( Both contact portions are integrally formed by the above-mentioned composite (20) so as to be located in a horizontal plane formed at right angles to 65).

One side surface of the first contact portion (65) of the heat transfer member (62), here, the side surface facing the side opposite to the second contact portion (7) side is the heat transfer surface of the heat transfer medium flower (61). It is in thermal contact with (64). The first contact portion (65) of the heat conductive member (62) must be bonded to the heat transfer medium flower (61) by a method such as brazing, soldering, diffusion bonding, ultrasonic bonding, laser bonding, or the like. preferable.

The heat transfer medium flowing in the heat transfer medium flow path (63) of the heat transfer medium flower (61) to the cell (11) constituting the assembled battery (10) using the heat transfer device (60) described above. An example of use for transferring cold heat or hot heat is as follows.

When cooling all the cell cells (11) constituting the above-mentioned assembled battery (10), the heat receiving surface of each assembled battery (10) is the second contact portion (66) of each heat transfer member (62). It is arranged so as to be in thermal contact with the upper surface of the heat transfer medium, and supplies a cooling liquid which is a heat transfer medium capable of supplying cold heat to all the heat transfer medium flow passages (63) of the heat transfer medium flower (61). Then, while the coolant is flowing through the heat transfer medium flow passage (63) of the heat transfer medium flower (61), the cold heat of the coolant is transferred to the first contact portion (65) of each heat conductive member (62). ) And all the cell cells (11) of each group battery (10) via the second contact portion (66), and all the cell cells (11) of each group battery (10) are cooled.

In cold regions, if it is necessary to heat the cell (11) to an appropriate temperature before starting use, heat can be supplied to the entire heat transfer medium flow path (63) of the heat transfer medium flower (61). A high-temperature heating liquid that is a heat transfer medium is supplied. Then, while the heating liquid is flowing through the heat transfer medium flow passage (63) of the heat transfer medium flower (61), the heat of the heating liquid of each set battery (10) is the same as in the case of cooling. It is transmitted to all the cells (11), and all the cells (11) of the assembled battery (10) are heated to an appropriate temperature.

In the heat transfer device (60) shown in FIG. 10, a plurality of heat transfer members (62) may be arranged only on one side of the heat transfer medium flower (61).

The heat transfer device according to the present invention is suitably used for transferring cold heat or heat to a cell consisting of a lithium secondary battery in an assembled battery, for example.

(1) (55) (60): Heat transfer device
(2) (56) (61): Heat transfer medium distributor
(3) (30) (62): Heat conductive member
(4) (63): Heat transfer medium flow path
(5) (40) (45) (50) (57) (64): Heat transfer surface
(6) (41) (46) (51) (58) (65): First contact part
(7) (66): Second contact part
(10): Batteries (heat receiver)
(11): Cellular battery
(20): Complex
(21): Composite material
(22): Aluminum matrix
(23): Carbon particles
(25): Carbon particle dispersion layer
(26): Aluminum layer

Claims (16)

A heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow passage through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. The member is formed by a plate-like composite containing a composite material in which aluminum and carbon particles are composited .
The outer shape of the cross-sectional shape of the heat transfer medium flower is square, and the vertical surface of one of the two vertical planes of the heat transfer medium flower is the heat transfer plane, which is perpendicular to the end of the heat transfer member. The first contact portion is provided, and both contact portions are integrally provided so that the second contact portion is located in a horizontal plane formed at right angles to the first contact portion, and faces the second contact portion side of the first contact portion. A heat transfer device in which the side surface opposite to the side surface is in thermal contact with the heat transfer surface of the heat transfer medium flower. A heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow path through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. The member is formed by a plate-like composite containing a composite material in which aluminum and carbon particles are composited.
The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the lower surface of the heat transfer medium flower becomes the first part of the heat transfer surface, and one of the two vertical planes of the heat transfer medium flower. One vertical surface becomes the second part of the heat transfer surface, an angle-shaped first contact part consisting of a horizontal part and a vertical part is provided at the end of the heat transfer member, and the second contact part is the horizontal part of the first contact part. Both contact portions are integrally provided so as to be located in the same horizontal plane as the portion, and the upper surface of the horizontal portion of the first contact portion is in thermal contact with the first portion of the heat transfer surface of the heat transfer medium flower. A heat transfer device in which the side surface of the vertical portion facing the second contact portion is in thermal contact with the second portion of the heat transfer surface of the heat transfer medium flower. A heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow passage through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. The member is formed by a plate-like composite containing a composite material in which aluminum and carbon particles are composited.
The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the upper surface of the heat transfer medium flower becomes the first part of the heat transfer surface, and one of the two vertical planes of the heat transfer medium flower. One vertical surface becomes the second part of the heat transfer surface, and the lower surface of the heat transfer medium flower becomes the third part of the heat transfer surface, which are arranged at the ends of the heat transfer members at intervals in the vertical direction. A channel-shaped first contact portion consisting of one horizontal portion and a vertical portion connecting the side edges of both horizontal portions is provided, and the second contact portion is located in the same horizontal plane as the lower horizontal portion of the first contact portion. As described above, both contact portions are integrally provided, and the lower surface of the upper horizontal portion of the first contact portion is in thermal contact with the first portion of the heat transfer surface of the heat transfer medium flower, and the upper surface of the lower horizontal portion is in thermal contact with the first portion. Is in thermal contact with the third portion of the heat transfer surface of the heat transfer medium flower, and the side surface of the vertical portion of the first contact portion facing the second contact portion is the heat transfer surface of the heat transfer medium flower. A heat transfer device that is in thermal contact with the second part of the. A heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow passage through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. The member is formed by a plate-like composite containing a composite material in which aluminum and carbon particles are composited.
The outer shape of the cross-sectional shape of the heat transfer medium flower is circular, and the superior arc-shaped portion of the outer peripheral surface of the heat transfer medium flower from the lower end to beyond the upper end serves as the heat transfer surface and one side edge of the heat transfer surface. Is located at the lower end of the outer shape of the heat transfer medium flower, and one of the two side edges that are laterally open and sandwich the opening at the end of the heat transfer member is the heat transfer medium. A superior arc-shaped first contact portion located at the lower end portion of the flow body is provided, and the second contact portion is the lower end portion of the heat transfer medium flow body among the two side edge portions sandwiching the opening in the first contact portion. Both contact portions are integrally provided so as to be located in a horizontal plane connected to the side edge portion located at, and the surface of the first contact portion facing the center of curvature is thermally heated to the heat transfer surface of the heat transfer medium flower. Heat transfer device in contact with. A heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow passage through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. The member is formed by a plate-like composite containing a composite material in which aluminum and carbon particles are composited.
The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the lower surface of the heat transfer medium flower serves as the heat transfer surface, and a horizontal first contact portion is provided at the end of the heat transfer member to provide a second contact. Both contact portions are integrally provided so that the portions are located in the same horizontal plane as the first contact portion, and the upper surface of the first contact portion is in thermal contact with the heat transfer surface of the heat transfer medium flower.
The two heat transfer medium flow bodies are arranged so as to be parallel to each other so that the longitudinal directions face the same direction, first contact portions are provided at both ends of the heat transfer member, and the second contact portion of the heat transfer member is provided. A heat transfer device arranged between both heat transfer medium distributors. A heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow passage through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. The member is formed by a plate-like composite containing a composite material in which aluminum and carbon particles are composited.
The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the lower surface of the heat transfer medium flower serves as the heat transfer surface, and a horizontal first contact portion is provided at the end of the heat transfer member to provide a second contact. Both contact portions are integrally provided so that the portions are located in the same horizontal plane as the first contact portion, and the upper surface of the first contact portion is in thermal contact with the heat transfer surface of the heat transfer medium flower.
One heat transfer medium and the flow body, a plurality of heat conducting members and more Na Ru heat transfer device disposed on one side of the heat transfer medium circulating body. A heat transfer device that transfers the cold or hot heat of a heat transfer medium to a heat receiving body.
A heat transfer medium flow body having a heat transfer medium flow passage through which the heat transfer medium flows and having a heat transfer surface on the outer surface and a heat transfer medium having a heat transfer medium in thermal contact with the heat transfer surface of the heat transfer medium flow body. It comprises a plurality of heat conductive members having a first contact portion that receives cold heat or heat, and a flat second contact portion that is in thermal contact with the heat receiver and transfers the cold heat or heat to the heat receiver. The member is formed by a plate-like composite containing a composite material in which aluminum and carbon particles are composited.
An accommodation section for accommodating the heat receiving body is provided on the upper surface of the second contact portion of the heat conductive member, and the accommodating section is provided in a rising shape so as to be in thermal contact with the second contact portion of the heat conductive member. It is provided with a partition wall that partitions adjacent storage compartments and thermally contacts at least a part of the side surface of the heat receiving body, and the partition wall is a plate shape containing a composite material in which aluminum and carbon particles are composited. A heat transfer device formed by a complex of. The two heat transfer medium flow bodies are arranged so as to be parallel to each other so that the longitudinal directions face the same direction, first contact portions are provided at both ends of the heat transfer member, and the second contact portion of the heat transfer member is provided. The heat transfer device according to any one of claims 1 to 4, which is arranged between both heat transfer medium distributors. The heat transfer device according to any one of claims 1 to 4, comprising one heat transfer medium flower and a plurality of heat transfer members arranged on one side of the heat transfer medium flower. The outer shape of the cross-sectional shape of the heat transfer medium flower is square, the lower surface of the heat transfer medium flower serves as the heat transfer surface, and a horizontal first contact portion is provided at the end of the heat transfer member to provide a second contact. A claim that both contact portions are integrally provided so that the portions are located in the same horizontal plane as the first contact portion, and the upper surface of the first contact portion is in thermal contact with the heat transfer surface of the heat transfer medium flower. 7. The heat transfer device according to 7. The heat transfer device according to claim 1, further comprising one heat transfer medium flower and at least one heat transfer member arranged on both sides of the heat transfer medium flower. An accommodation section for accommodating the heat receiving body is provided on the upper surface of the second contact portion of the heat conductive member, and the accommodating section is provided in a rising shape so as to be in thermal contact with the second contact portion of the heat conductive member. It is provided with a partition wall that partitions adjacent storage compartments and thermally contacts at least a part of the side surface of the heat receiving body, and the partition wall is a plate shape containing a composite material in which aluminum and carbon particles are composited. The heat transfer device according to any one of claims 1 to 6, 8, 9, and 11 formed by the complex of the above. One of claims 1 to 12, wherein the carbon particles in the composite material of the composite forming the heat transfer member are at least one selected from the group consisting of carbon nanotubes, graphene, graphite particles and carbon fibers. The heat transfer device described. The heat transfer device according to any one of claims 1 to 13, wherein the composite material of the composite forming the heat conductive member is an aluminum matrix and carbon particles dispersed in the aluminum matrix. The composite material of the composite forming the heat transfer member is formed of a plurality of carbon particle dispersion layers in which the carbon particles are dispersed in the plane direction in the aluminum material constituting the aluminum matrix, and the aluminum material constituting the aluminum matrix. The heat transfer device according to claim 14, further comprising the plurality of aluminum layers formed therein, in which the carbon particle dispersion layer and the aluminum layer are alternately arranged in a laminated manner in the thickness direction of the composite. It comprises a plurality of assembled batteries and the heat transfer device according to any one of claims 1 to 15 , each assembled battery is composed of a plurality of cell cells, and the cell cell is a heat transfer member of the heat transfer device. A combined battery device that is arranged so as to be in thermal contact with the second contact portion of the above and is a heat receiving body that receives the cold heat or heat of the heat transfer medium flowing in the heat transfer medium flow passage of the heat transfer medium flower.

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