CN218498158U

CN218498158U - Heat management component, heat management system, battery box, battery and power utilization device

Info

Publication number: CN218498158U
Application number: CN202221798859.8U
Authority: CN
Inventors: 黄乐
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-02-17
Anticipated expiration: 2032-07-13
Also published as: WO2024011882A1

Abstract

The application relates to the technical field of batteries, in particular to a heat management component, a heat management system, a battery box body, a battery and an electric device. In the technical scheme of this application embodiment, at least one in first plate body and the second plate body is provided with the region of thinning in the region that corresponds the bending section. The design reduces the thickness of the plate body corresponding to the bending section, can reduce the rigidity of the plate body corresponding to the bending section, and further enables the accommodating space with a preset size to be obtained when the accommodating space is formed, so that the heat dissipation effect of the heat management part is effectively improved, and the heat dissipation requirement can be met.

Description

Heat management component, heat management system, battery box, battery and power utilization device

Technical Field

The application relates to the technical field of batteries, in particular to a heat management component, a heat management system, a battery box body, a battery and an electric device.

Background

In the related art, heat management components are disposed on multiple sides of the battery cell to improve the heat dissipation effect of the battery. In this process, it is difficult for the thermal management component to meet the heat dissipation requirements.

SUMMERY OF THE UTILITY MODEL

Based on this, the embodiment of the application provides a heat management component, a heat management system, a battery box, a battery and an electric device, so that the heat dissipation effect of the heat management component can be improved to meet the heat dissipation requirement.

In a first aspect, the application provides a heat management component, which comprises a body, wherein the body comprises a first plate body and a second plate body which are stacked, an accommodating space is formed between the first plate body and the second plate body, and the accommodating space is used for accommodating a heat exchange medium. The body is provided with straight section and bending segment, and the bending segment sets up between two straight sections that extend along the equidirectional not respectively, and at least one in first plate body and the second plate body is provided with in the region that corresponds the bending segment and cuts thin the district.

In the technical scheme of this application embodiment, at least one in first plate body and the second plate body is provided with the region of tapering at the corresponding bending section. The thickness of the plate body corresponding to the bending section is reduced through the design, the rigidity of the plate body corresponding to the bending section can be reduced, and therefore the accommodating space with the preset size can be obtained when the accommodating space is formed, the heat dissipation effect of the heat management part is effectively improved, and the heat dissipation requirement can be met.

In some embodiments, the second plate body is provided with a thinning area in an area corresponding to the bending section, and the thinning area is in a groove structure, and the thickness of the bottom wall of the groove structure is smaller than that of the plate body corresponding to the straight section of the second plate body. The thinning area of the groove structure is arranged in the area corresponding to the bending section on the second plate body, the thickness of the bottom wall of the groove structure is smaller than that of the plate body corresponding to the straight section on the second plate body, and the thickness of the plate body corresponding to the bending section on the second plate body can be reduced. Therefore, the rigidity of the plate body of the second plate body corresponding to the bending section is reduced, so that the accommodating space with the preset size can be obtained.

In some embodiments, the first plate is configured to exchange heat with a target member, and the body is bent in a direction toward the first plate along the second plate. Through forming straight section and the bending segment with the body along the direction bending of second plate body orientation first plate body, the bending segment sets up between two straight sections that extend along the equidirectional not respectively for the body can enclose to close the region that forms and to place the target piece. The first plate body is closer to the target piece than the second plate body, and heat exchange can be carried out between the first plate body and the target piece. In this manner, thermal management of the target part may be achieved.

In some implementations, the groove structure is disposed on a surface of the second plate body facing away from the accommodating space, and the groove structure extends along a bending direction of the bending section. That is, the groove structure is formed on a side surface of the second plate body facing away from the first plate body. So, can be through the arrangement mode that sets up groove structure, the region that corresponds the bending segment to the second plate body thins, as long as satisfy the second plate body and correspond the region of bending segment can the attenuate.

In some embodiments, the second plate body is provided with a thinned region in the region corresponding to the bend. The ratio Q1 of the thickness of the plate body in the thinning area to the thickness of the plate body of the second plate body in the straight section meets the condition that Q1 is more than or equal to 0.7 and less than or equal to 0.8. Therefore, through the design of the thickness of the plate body in the thinning area, the accommodating space with the required size can be conveniently manufactured under the condition of meeting certain rigidity requirement.

In some embodiments, the second plate body is provided with a thinned region in a region corresponding to the bend, the plate body in the thinned region having a yield strength of 100 mpa or less. In this way, through the design of the yield strength of the plate body in the thinning area, the required size of the accommodating space is conveniently manufactured, and simultaneously, the brittle fracture caused by the excessively low brittle fracture resistance strength of the plate body in the thinning area is avoided.

In some embodiments, the body is further provided with an extension section, and the extension section is connected between the bending section and the corresponding straight section. The thickness of the plate body of the extension section of the plate body provided with the thinning area in the first plate body and the second plate body is smaller than that of the plate body of the corresponding straight section of the plate body. The extending direction of the extending section is the same as the extending direction of the connected corresponding straight section. Therefore, the extension section is arranged, the thinning area can be further matched, and the accommodating space with the required size is obtained.

In some embodiments, the second plate body is provided with a thinned region in the region corresponding to the bend. The ratio Q2 of the thickness of the plate body of the second plate body in the extension section to the thickness of the plate body of the second plate body in the straight section meets the requirement that Q2 is more than or equal to 0.7 and less than or equal to 0.8. So, through the design to the plate body thickness of extension for can be under certain rigidity demand satisfying, still be convenient for make the accommodation space who obtains required size.

In some embodiments, the second plate body has a yield strength of 100 mpa or less in the plate body of the extension section. Thus, through the design of the yield strength of the plate body of the extension section, the accommodating space with the required size is conveniently manufactured, and simultaneously, the brittle fracture caused by the excessively low brittle fracture resistance strength of the plate body of the extension section is avoided.

In some embodiments, the width dimension of the extension is no less than 10 millimeters. The width dimension of the extension section is the dimension of the extension section in the direction of the straight section connected with the extension section and the bending section connected with the extension section. By designing the width dimension of the extension section, the thinning area can be further matched, and the manufacturing is convenient to obtain a containing space with a required size.

In some embodiments, the bent section is smoothly connected between the two straight sections. Through making the smooth connection between bending section and two straight sections, can avoid the plate body of bending section department to appear stress concentration, be convenient for handle the plate body of bending section department, obtain the accommodation space of required size.

In some embodiments, the body has an inner bend diameter at the bend section of greater than or equal to 8 millimeters. So, be convenient for handle the plate body of bending section department, obtain the accommodation space of required size.

In some embodiments, the body is provided with two bent sections and three straight sections. Two of the three straight sections are positioned at two sides of the other straight section along the preset direction, and the two straight sections are respectively connected to the corresponding sides of the other straight section by the corresponding bending sections. Thus, the structure capable of performing water cooling on three sides of the target object can be formed, and the heat dissipation efficiency of the target object is further improved.

In some embodiments, the body has the same bending angle in two portions of two of the straight sections compared to the body in the remaining one of the straight sections. Therefore, the required heat management component can be obtained through the arrangement mode of the straight sections, and the heat management component can perform heat exchange on the target object.

In some embodiments, in the two straight sections where the bending sections are connected, the extending directions of the two straight sections are perpendicular to each other. In the heat management component in the embodiment of the application, the extending directions of the two straight sections connected by the bent section can be flexibly set as long as the heat management component can exchange heat with a target object.

In some embodiments, the body is integrally formed to form the straight section and the bent section. Through the mode of integrated into one piece, can improve manufacturing efficiency.

In some embodiments, at least one of the first plate and the second plate forms the receiving space by a blow-molding process. So, form accommodation space through the fashioned mode of inflation, be convenient for obtain the accommodation space of required shape.

In a second aspect, the present application provides a thermal management system comprising the thermal management component of the above embodiments. Due to the use of the thermal management components in the above embodiments, the thermal management efficiency of the thermal management system may be improved.

In a third aspect, the present application provides a battery box for accommodating a battery cell, including the thermal management component in the above embodiments, where the thermal management component is used for exchanging heat with the battery cell. Due to the adoption of the thermal management component in the embodiment, the thermal management requirement of the battery cell can be met.

In a fourth aspect, the present application provides a battery, which includes a single battery and the battery case in the above embodiments, where the battery case is used to accommodate the single battery. Due to the adoption of the heat management component in the embodiment, the heat management requirement of the battery cell can be met, and the reliability of the battery is further improved.

In a fifth aspect, the present application provides a battery including a plurality of battery cells and the thermal management system in the above embodiments. The thermal management system is used for exchanging heat with the battery cells. Due to the adoption of the thermal management component in the embodiment, the thermal management requirement of the battery cell can be met, and the reliability of the battery is further improved.

In a sixth aspect, the present application provides an electric device, comprising the battery in the above embodiments, wherein the battery is used for supplying electric energy to the electric device. Due to the adoption of the thermal management component in the embodiment, the thermal management requirement of the battery cell can be met, and the reliability of the electric device is further improved.

This application embodiment is through setting up the district of thinning on the plate body that the bending segment of body corresponds for the plate body thickness that corresponds the bending segment obtains reducing, can reduce the rigidity of the plate body that corresponds the bending segment, is convenient for obtain the accommodation space of required size when making in the interior accommodation space that forms of thermal management part. Therefore, the heat dissipation effect of the heat management component is effectively improved, and the heat dissipation requirement can be met.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

FIG. 1 is a schematic structural diagram of a vehicle according to some embodiments of the present application;

fig. 2 is an exploded view of a battery according to some embodiments of the present application;

FIG. 3 is a schematic structural view of a thermal management component according to some embodiments of the present application;

FIG. 4 is an exploded view of the thermal management member of FIG. 3;

FIG. 5 is a schematic view of a portion of the enlarged structure at M in FIG. 3;

FIG. 6 is a schematic cross-sectional view of the heat management component of FIG. 3;

FIG. 7 is a schematic view of a portion of the enlarged structure at N in FIG. 6;

FIG. 8 is a schematic structural view of a thermal management component according to other embodiments of the present application;

FIG. 9 is a schematic view of a portion of the enlarged structure at O in FIG. 8;

FIG. 10 is a cross-sectional structural view of the heat management component of FIG. 8;

FIG. 11 is an enlarged partial view of the structure at P in FIG. 10;

fig. 12 is an exploded view of the first plate and the second plate according to some embodiments of the present disclosure.

The reference numbers in the detailed description are as follows:

a vehicle 1000;

battery 100, controller 200, motor 300;

a battery case 10, a first portion 11, a second portion 12;

a battery cell 20;

a thermal management component 30;

a body 31;

the first plate body 311, the first surface 3111, the second surface 3112, the second plate body 312, the first section p1, the second section p2, the third section p3, the fourth section p4, the fifth section p5, the third surface 3121, the fourth surface 3122, the accommodating space s, the straight section a, the bent section b, the bent inner diameter R, the thinning region x, the bottom wall g1, the side wall g2, the extending section c, the liquid inlet k1, the liquid outlet k2, the first joint J1, and the second joint J2;

a first dimension t1, a second dimension t2, a third dimension t3, a fourth dimension h;

a first direction F1 and a second direction F2.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof in the description and claims of this application and the description of the figures above, are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing the association object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

At present, the application of power batteries is more and more extensive from the development of market conditions. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment and aerospace. With the continuous expansion of the application field of the power battery, the market demand is also continuously expanding.

In the related art, in order to improve the heat dissipation effect of the battery, a plurality of heat management pieces are arranged on multiple sides of a battery monomer, and an accommodating space for accommodating a heat exchange medium is arranged in each heat management piece. The heat management pieces on two adjacent sides are connected to form a bending section, the accommodating spaces on the heat management pieces on the two adjacent sides are communicated, and the plurality of heat management pieces form a heat management part. The inventors have noted that in this process, the rigidity of the portion of the heat exchange member located at the bend section becomes higher due to the bending, and it is difficult to achieve a desired size when the bend section forms the accommodation space by, for example, blowing, and the accommodation space in the other portion of the heat management member except the bend section is not affected. Therefore, when the heat exchange medium flows through the bent section, the flow speed of the heat exchange medium is reduced, and the heat management component is difficult to meet the heat dissipation requirement.

In order to improve the heat dissipation efficiency of the heat management component, the inventor of the application finds that the part of the heat exchange component, which is located at the bending section, can be thinned, the rigidity of the part of the heat exchange component, which is located at the bending section, is reduced, an accommodating space capable of meeting the use requirement can be formed at the bending section, and then the flow speed reduction when a heat exchange medium flows through the accommodating space of the bending section is avoided, so that the heat dissipation efficiency of the heat management component can be improved, and the heat dissipation requirement is met.

Based on the consideration, in order to improve the heat dissipation efficiency of the heat management component, the inventor of the application designs the heat management component through intensive research, and the bending section of the heat management component is thinned, so that the flow speed requirement of the heat exchange medium can be met when the bending section of the heat management component forms an accommodating space.

In the heat management part, the flow speed of the heat exchange medium in the accommodating space of the bent section of the heat management part can be prevented from being influenced by bending, and the flow speed of the heat exchange medium in the accommodating space of the bent section is equivalently improved, so that the overall heat dissipation efficiency of the heat management part is improved, and the heat dissipation requirement is met.

The thermal management component disclosed by the embodiment of the application can be used in electric devices such as an energy storage cabinet, a vehicle, a ship or an aircraft, but not limited to the electric devices. The heat management component disclosed by the application can be used for carrying out heat exchange on the battery monomer, and can be applied to the power system of the battery monomer, the battery and the like which form the electric device, so that the problem that the heat dissipation efficiency of the heat management component is limited is favorably alleviated, the heat dissipation efficiency of the battery monomer can be improved, and the heat dissipation requirement of the power system is met.

The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be but is not limited to a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

For convenience of description, the following embodiments take an example in which a power consuming apparatus according to an embodiment of the present application is a vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present disclosure. The vehicle 1000 may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or a range-extended automobile, etc. The battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may serve as an operation power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to supply power to the motor 300, for example, for starting, navigation, and operational power requirements while the vehicle 1000 is traveling.

In some embodiments of the present application, the battery 100 may be used not only as an operating power source of the vehicle 1000, but also as a driving power source of the vehicle 1000, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 1000.

Referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present disclosure. The battery 100 includes a case 10 and a battery cell 20, and the battery cell 20 is accommodated in the case 10. The case 10 is used to provide a receiving space for the battery cells 20, and the case 10 may have various structures. In some embodiments, the case 10 may include a first portion 11 and a second portion 12, the first portion 11 and the second portion 12 cover each other, and the first portion 11 and the second portion 12 together define a receiving space for receiving the battery cell 20. The second part 12 may be a hollow structure with one open end, the first part 11 may be a plate-shaped structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a containing space; the first portion 11 and the second portion 12 may be both hollow structures with one side open, and the open side of the first portion 11 may cover the open side of the second portion 12. Of course, the case 10 formed by the first and

second portions

11 and 12 may have various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

In the battery 100, there may be a plurality of battery cells 20, and the plurality of battery cells 20 may be connected in series or in parallel or in series-parallel, where in series-parallel refers to both series connection and parallel connection among the plurality of battery cells 20. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and the whole formed by the plurality of battery cells 20 is accommodated in the box body 10; of course, the battery 100 may also be formed by connecting a plurality of battery cells 20 in series, in parallel, or in series-parallel to form a battery module, and then connecting a plurality of battery modules in series, in parallel, or in series-parallel to form a whole, and the whole is accommodated in the box 10. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for achieving electrical connection between the plurality of battery cells 20.

Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular parallelepiped, or other shape.

According to some embodiments of the present application, referring to fig. 3 to 7, fig. 3 is a schematic structural view of a thermal management component 30 according to some embodiments of the present application, fig. 4 is an exploded structural view of the thermal management component 30 in fig. 3, fig. 5 is a partial enlarged structural view at M in fig. 3, fig. 6 is a schematic sectional structural view of the thermal management component 30 in fig. 3, and fig. 7 is a partial enlarged structural view at N in fig. 6. The present application provides a thermal management component 30. The thermal management component 30 includes a body 31. The body 31 includes a first plate 311 and a second plate 312 which are stacked, and an accommodation space s is formed between the first plate 311 and the second plate 312 and is used for accommodating a heat exchange medium. The body 31 is provided with a straight section a and a bent section b, the bent section b is disposed between two straight sections a extending along different directions, and at least one of the first plate 311 and the second plate 312 is provided with a thinning area x in an area corresponding to the bent section b.

As shown in the drawing, the first direction F1 is a longitudinal direction of the thermal management member 30, and the second direction F2 is a height direction of the thermal management member 30.

It is understood that the first plate 311 and the second plate 312 are laminated to form the body 31. In the second direction F2, the first plate 311 may be located above the second plate 312, and the first plate 311 may also be located below the second plate 312. Fig. 3 to fig. 7 illustrate a situation where the first plate 311 is located above the second plate 312, which may be set according to a use situation, and this is not limited in this embodiment of the present invention. A side of the first plate body 311 and the second plate body 312 facing each other forms an accommodation space s so that the heat exchange medium can be accommodated in the accommodation space s. The heat exchange medium may be water or another fluid capable of exchanging heat.

Since the body 31 is formed by laminating the first plate 311 and the second plate 312, the "bent section b" and the "straight section a" each include a portion of the first plate 311 and a portion of the second plate 312. The "bending section b" refers to a structure in which the portion of the body 31 located at the bending section b is curved, and the "straight section a" refers to a structure in which the portion of the body 31 located at the straight section a is flat and substantially free of undulations. The body 31 has at least two straight sections a extending in different directions and a bent section b disposed between the two straight sections a. The number of the straight sections a and the number of the bent sections b are not particularly limited in the embodiments of the present application as long as it is satisfied that the bent sections b are provided between the straight sections a extending in different directions. It is understood that the straight sections a extending in different directions may correspond to adjacent sides of the battery cells 20 in some embodiments.

"at least one of the first plate body 311 and the second plate body 312 is provided with the thinned region x in the region corresponding to the bent section b" means that the thinned region x may be provided in the region corresponding to the bent section b of the first plate body 311, the thinned region x may be provided in the region corresponding to the bent section b of the second plate body 312, and the thinned regions x may be provided in the regions corresponding to the bent sections b of the first plate body 311 and the second plate body 312. The setting can be performed according to the use requirement, and the embodiment of the application does not specifically limit this. Fig. 3 to 7 illustrate a situation that the thinned area x is disposed in an area of the second plate 312 corresponding to the bending section b, which may be set according to a use situation, and this embodiment of the present application does not specifically limit this.

It is understood that "skived zone x" means that at least one of the first plate body 311 and the second plate body 312 undergoes a skiving process to be thinned in the region corresponding to the bent section b. The thinning process may include removing portions of the region to reduce the thickness of the region, or may include thinning the region by a non-uniform thickness process such as rolling. The thinning process is not particularly limited in the embodiment of the present application as long as it can be satisfied that at least one of the first plate body 311 and the second plate body 312 is provided with the thinning region x in the region corresponding to the bent section b.

The thinning area x is arranged in the area corresponding to the bending section b in at least one of the first plate body 311 and the second plate body 312, so that the thickness of the plate body corresponding to the bending section b can be reduced, the rigidity of the plate body corresponding to the bending section b can be reduced, the accommodating space s with a preset size can be obtained when the accommodating space s is formed, the influence on the flow speed of a heat exchange medium flowing through the accommodating space s at the bending section b is avoided, the heat dissipation effect of the heat management component 30 is effectively improved, and the heat dissipation requirement can be met.

According to some embodiments of the present application, optionally, with continued reference to fig. 3 to 7, the second plate 312 is provided with a thinning area x in a region corresponding to the bending section b, and the thinning area x is a groove structure. The thickness of the bottom wall g1 of the groove structure is a first dimension t1 shown in the figure, the thickness of the plate body of the second plate body 312 corresponding to the straight section a is a second dimension t2 shown in the figure, and the first dimension t1 is smaller than the second dimension t2.

In the present application, as illustrated in fig. 3 to 7, the first plate 311 has a first surface 3111 and a second surface 3112 disposed opposite to each other, the second plate 312 has a third surface 3121 and a fourth surface 3122 disposed opposite to each other, the second surface 3112 of the first plate 311 and the third surface 3121 of the second plate 312 are disposed opposite to each other, and the receiving space s is defined by the third surface 3121 and the fourth surface 3122. When the second plate 312 is provided with the thinned region x in the region corresponding to the bent section b, and the thinned region x is a groove structure, the groove structure may be formed by the third surface 3121 of the second plate 312 being recessed toward the fourth surface 3122 of the second plate 312, or may be formed by the fourth surface 3122 of the second plate 312 being recessed toward the third surface 3121 of the second plate 312. The embodiment of the present application does not specifically limit the thinned region x as long as it can be formed by providing the groove structure.

It will be appreciated that, as shown in fig. 5 and 7, the groove structure further includes, with respect to the bottom wall g1 of the groove structure, two side walls g2 connected to opposite sides of the bottom wall g 1.

So, set up the district x that thins of groove structure in the region that corresponds bending section b through at second plate body 312 to make the diapire g1 thickness of groove structure be less than the plate body thickness that second plate body 312 corresponds straight section a, can make the plate body thickness that second plate body 312 corresponds bending section b reduce.

According to some embodiments of the present application, optionally, with continued reference to fig. 3 to 7, the first plate 311 is used for heat exchange with a target, and the body 31 is bent along the second plate 312 toward the first plate 311.

It is understood that, taking the situation illustrated in fig. 3 and 4 as an example, in the second direction F2, the first plate 311 is located above the second plate 312, and the body 31 is bent towards the second direction F2, so as to form the straight section a and the bent section b in this application.

By bending the body 31 along the direction of the second plate 312 toward the first plate 311 to form a straight section a and a bent section b, the bent section b is disposed between two straight sections a respectively extending along different directions, so that the body 31 can enclose an area where a target piece (such as the battery cell 20 mentioned in some of the aforementioned embodiments) can be placed. The first plate 311 is closer to the target object than the second plate 312, and the first plate 311 can exchange heat with the target object. In this manner, thermal management for the target part may be achieved.

According to some embodiments of the present application, optionally, please refer to fig. 5 and fig. 7 with reference to fig. 3 and fig. 6, a groove structure is disposed on a surface of the second plate 312 facing away from the receiving space s, and the groove structure extends along the bending direction of the bending section b. That is, the groove structure is formed on a side surface of the second plate body 312 facing away from the first plate body 311 (i.e., the fourth surface 3122 of the second plate body 312).

It is understood that "the groove structure extends along the bending direction of the bending section b" means that the shape of the groove structure is matched with the shape of the bending section b, and the extending direction of the groove structure is the same as the bending direction of the bending section b. The specific extending shape of the groove structure can be set according to the use requirement, and the embodiment of the application does not specifically limit this.

So, can be through the arrangement that sets up groove structure, the regional attenuate that corresponds bending segment b to second plate body 312, as long as satisfy the second plate body 312 and correspond the regional attenuate can of bending segment b.

According to some embodiments of the present application, optionally, with continued reference to fig. 5 and 7 in conjunction with fig. 3 and 6, the second plate body 312 is provided with a thinned area x in the area corresponding to the bend b. The ratio Q1 of the plate thickness of the thinned region x (i.e., the first dimension t1 in the drawing) to the plate thickness of the second plate 312 at the straight section a (i.e., the second dimension t2 in the drawing) satisfies 0.7 ≤ Q1 ≤ 0.8.

Thus, through the design of the thickness of the plate body of the thinning area x, the accommodating space s with the required size can be conveniently manufactured under the condition of meeting certain rigidity requirement.

According to some embodiments of the present application, optionally, with continuing reference to fig. 5 and 7 in conjunction with fig. 3 and 6, the second plate body 312 is provided with a thinned area x in an area corresponding to the bent section b, and the yield strength of the plate body in the thinned area x is equal to or less than 100 mpa.

In this way, by designing the yield strength of the plate body in the thinning region x, the accommodating space s with a required size can be conveniently manufactured, and simultaneously, the brittle fracture caused by too low brittle fracture resistance of the plate body in the thinning region x is avoided.

According to some embodiments of the present application, optionally, referring to fig. 8 to 11, fig. 8 is a schematic structural diagram of a thermal management component 30 according to other embodiments of the present application, fig. 9 is a schematic partial enlarged structural diagram at O in fig. 8, fig. 10 is a schematic cross-sectional structural diagram of the thermal management component 30 in fig. 8, and fig. 11 is a schematic partial enlarged structural diagram at P in fig. 10. The body 31 is further provided with an extending section c, and the extending section c is connected between the bending section b and the corresponding straight section a. The plate thickness of the plate body provided with the thinned region x in the first plate body 311 and the second plate body 312 at the extending section c (i.e., the third dimension t3 illustrated in the figure) is smaller than the plate thickness of the plate body at the corresponding straight section a (i.e., the second dimension t2 illustrated in the figure). The extending direction of the extending section c is the same as the extending direction of the connected corresponding straight section a.

It should be noted that fig. 8 to fig. 11 illustrate a case where the second plate 312 is provided with a thinned area x and an extending section c, and the bent section b is connected with the two corresponding straight sections a through the extending section c. "extension c" refers to a structure in which the portion of the body 31 located at the extension c is extended or extended. The bent section b and the corresponding straight section a can be connected through the extending section c, or can not be connected through the extending section c. The bending section b is not particularly limited as long as it is connected with at least one connected straight section a through the extending section c.

It is understood that the first dimension t1 and the third dimension t3 illustrated in the figures may be the same or different. The bent section b is connected with the two corresponding straight sections a through the extending section c, and the first dimension t1 and the third dimension t3 are the same, so that the groove structure as shown in some embodiments can be formed. Unlike the groove structure in some of the aforementioned embodiments, the bottom wall g1 of the groove structure here is formed by the fourth surface 3122 of the second plate body 312 at the portion corresponding to the bent section b and the portion corresponding to the extending section c. Of course, the method can be set according to the implementation situation, and the embodiment of the present application does not specifically limit this.

Thus, by providing the extension section c, the thin area x can be further matched, and the accommodating space s with the required size can be obtained.

According to some embodiments of the present application, optionally, with continued reference to fig. 9 and 11, the second plate body 312 is provided with a thinned area x in the area corresponding to the bend b. The ratio Q2 between the plate thickness of the second plate 312 at the extending section c (i.e. the third illustrated dimension t 3) and the plate thickness of the second plate 312 at the straight section a (i.e. the second illustrated dimension t 2) satisfies 0.7-0.8.

Thus, through the design of the thickness of the plate body of the extension section c, the accommodating space s with the required size can be conveniently manufactured under the condition that certain rigidity requirement is met.

According to some embodiments of the present application, optionally, with continued reference to fig. 9 and 11, the yield strength of the plate body of the second plate body 312 at the extension section c is equal to or less than 100 mpa.

In this way, through the design of the yield strength of the plate body of the extension section c, the accommodating space s with the required size is conveniently manufactured, and simultaneously, the brittle fracture caused by the excessively low brittle fracture resistance strength of the plate body of the extension section c is avoided.

According to some embodiments of the present application, optionally, with continued reference to fig. 9 and 11, the width dimension of the extension c (i.e., the illustrated fourth dimension h) is not less than 10 mm. The width dimension of the extension section c is the dimension of the extension section c in the direction of the straight section a connected with the extension section c and the bending section b connected with the extension section c.

By designing the width dimension of the extension c, the thinning area x can be further matched, and the manufacturing is convenient to obtain the accommodating space s with the required size.

According to some embodiments of the present application, optionally, with continued reference to fig. 5, 7, 9, and 11, the bent section b is smoothly connected between the two straight sections a.

Taking fig. 5 and fig. 7 as an example, the case of smoothly connecting the bent section b directly with the straight section a is illustrated. Taking fig. 9 and fig. 11 as an example, the case where the bending section b is smoothly connected with the straight section a by the extending section c is illustrated. The setting can be performed according to the use requirement, and the embodiment of the application does not specifically limit this.

Through making the smooth connection between kink b and two straight section a, can avoid the plate body of kink b department to appear stress concentration, be convenient for handle the plate body of kink b department, obtain the accommodation space s of required size.

According to some embodiments of the present application, optionally, with continued reference to fig. 5, 7, 9, and 11, the bending inner diameter R of the body 31 at the bending section b is greater than or equal to 8 mm.

So, can reduce the rigidity of bending section b department plate body, be convenient for handle the plate body of bending section b department, obtain the accommodation space s of required size.

According to some embodiments of the present application, optionally, with continued reference to fig. 3 and 8, the body 31 is provided with two bent sections b and three straight sections a. Two of the three straight sections a are located at two sides of the other straight section a along a preset direction, and the two straight sections a are respectively connected to the corresponding sides of the other straight section a through the corresponding bent sections b.

It is to be understood that the case where the preset direction is the first direction F1 is illustrated in the present application. The preset direction may be set according to a use situation, and the embodiment of the present application does not specifically limit this.

Thus, the structure capable of performing water cooling on three sides of the target object can be formed, and the heat dissipation efficiency of the target object is further improved.

According to some embodiments of the present application, optionally, with continued reference to fig. 3 and 8, the body 31 has the same bending angle in two portions of two of the flat sections a as compared to the body 31 in the other portion of the flat section a.

In particular to some embodiments, in the two straight sections a connected with the bent section b, the extending directions of the two straight sections a are perpendicular to each other. In the thermal management component 30 of the embodiment of the present application, the extending directions of the two straight sections a connected by the bent section b can be flexibly set as long as the thermal management component 30 can perform heat exchange on a target object.

In this way, the required heat management component 30 can be obtained by the arrangement of the straight sections a, as long as the heat management component 30 can perform heat exchange on the target object.

According to some embodiments of the present application, optionally, with continued reference to fig. 3 and 8, the body 31 is integrally formed to form a straight section a and a bent section b. For example, the straight section a and the bent section b are formed using a press-forming process. The corresponding integral forming process can be selected according to the use requirement, and the embodiment of the application does not specifically limit the process. Thus, the manufacturing efficiency can be improved through the integrated molding mode.

According to some embodiments of the present application, optionally, with continued reference to fig. 7 and 11, at least one of the first plate body 311 and the second plate body 312 forms the receiving space s by a blow-molding process.

That is, the medium channel may be described on the first board 311, the medium channel may be described on the second board 312, and the medium channels may be described on both the first board 311 and the second board 312. The delineated media channels may be blown in a blow-molding process such that a receiving space s is formed between the first plate body 311 and the second plate body 312. The medium channel is specifically described on the first plate 311 or the second plate 312, and may be set according to actual situations, which is not specifically limited in the embodiment of the present application.

So, form accommodation space s through the mode of inflation shaping, be convenient for obtain the accommodation space s of required shape.

The present application also provides, according to some embodiments of the present application, a thermal management system comprising the thermal management component 30 of any of the above aspects. By using the thermal management component 30 of any of the above aspects, the thermal management efficiency of the thermal management system can be improved.

According to some embodiments of the present application, the present application also provides a battery case 10 for accommodating a battery cell 20, including the thermal management component 30 in any of the above aspects, wherein the thermal management component 30 is used for exchanging heat with the battery cell 20. Due to the use of the thermal management component 30 in any of the above solutions, the thermal management requirements of the battery cell 20 can be met.

According to some embodiments of the present application, the present application also provides a battery 100, which includes a battery cell 20 and the battery case 10 in any of the above aspects, wherein the battery case 10 is used for accommodating the battery cell 20. Due to the use of the thermal management component 30 in any of the above solutions, the thermal management requirements of the battery cells 20 can be met, thereby improving the reliability of the battery 100.

According to some embodiments of the present application, there is also provided a battery 100 including a plurality of battery cells 20 and the thermal management system of any of the above aspects. The thermal management system is used to exchange heat with the battery cell 20. Due to the use of the thermal management component 30 in any of the above solutions, the thermal management requirements of the battery cells 20 can be met, thereby improving the reliability of the battery 100.

According to some embodiments of the present application, the present application further provides an electric device, which includes the battery 100 in any of the above aspects, and the battery 100 is used for providing electric energy for the electric device. Due to the use of the thermal management component 30 in any of the above schemes, the thermal management requirements of the battery cells 20 can be met, and the reliability of the electric device is further improved.

The powered device may be any of the aforementioned devices or systems that employ battery 100.

According to some embodiments of the present application, referring to fig. 8 to 11, the present application provides a thermal management component 30, where the thermal management component 30 includes a body 31, the body 31 includes a first plate 311 and a second plate 312 which are stacked, and a receiving space s is formed between the first plate 311 and the second plate 312, and is used for receiving cooling water. The first plate 311 is used to exchange heat with the battery cell 20. The body 31 is bent in a direction toward the first plate 311 along the second plate 312. The body 31 is provided with two bent sections b, three straight sections a, and four extended sections c. The bending section b is arranged between two straight sections a which respectively extend along different directions, and the extending section c is connected between the bending section b and the corresponding straight section a. Two of the three straight sections a are located at two sides of the other straight section a along the first direction F1, and the two straight sections a are respectively connected to corresponding sides of the other straight section a by corresponding bending sections b and extending sections c. In the two straight sections a where the bent sections b are connected, the extending directions of the two straight sections a are perpendicular to each other. The second plate 312 is provided with a thinning region x in a region corresponding to the bending section b, and a ratio Q1 between a plate thickness (i.e., a first dimension t 1) of the second plate 312 at the bending section b and a plate thickness (i.e., a second dimension t 2) of the second plate 312 at the straight section a satisfies 0.7-0.8. The ratio Q2 of the plate thickness (i.e., the third dimension t 3) of the second plate 312 at the extending section c to the plate thickness (i.e., the second dimension t 2) of the second plate 312 at the straight section a satisfies 0.7-0.8 of Q2. The yield strength of the second plate body 312 at the plate body corresponding to the bent section b and the extended section c is 100 mpa or less. The second plate 312 forms a groove structure in the area corresponding to the bending section b and the extending section c. The groove structure is disposed on a surface of the second plate 312 facing away from the receiving space s (i.e., the fourth surface 3122 of the second plate 312), and the groove structure extends along the bending direction of the bending section b and the extending direction of the extending section c. The width dimension of the extension section c is not less than 10 mm. The width dimension of the extension segment c is the dimension of the extension segment c in the direction from the straight segment a connected with the extension segment c to the bending segment b connected with the extension segment c.

Referring to fig. 8-11 in combination with fig. 12, fig. 12 is an exploded view of a first plate 311 and a second plate 312 according to some embodiments of the present disclosure. The heat exchange medium may be provided as cooling water, and a superplastic metal material (e.g., an aluminum alloy, etc.) may be used for the first plate body 311 and the second plate body 312. The following briefly describes the fabrication steps of the thermal management component 30 provided in some embodiments of the present application:

s1, after the second plate body 312 is pretreated by polishing to remove oil and the like, a separant (such as graphite) is coated according to an actual pipeline pattern, a water channel is carved on the second plate body 312 (as shown by a dotted line in figure 12), and air blowing holes (which can be used as a liquid inlet k1 and a liquid outlet k2 in subsequent use) are arranged on the first plate body 311;

s2, laminating and fixing the first plate body 311 and the second plate body 312 to form the body 31 through a hot rolling process, pre-blowing through the air blowing holes, and checking whether the water channel is complete or not to obtain an actual pipeline pattern;

s3, bending the body 31 through a punch forming process to form a U-shaped structure with a bending section b, an extending section c and a flat section a;

and S4, carrying out inflation through an inflation process, carrying out inflation molding on the water channel on the second plate body 312, and forming an accommodating space S between the first plate body 311 and the second plate body 312.

As shown in fig. 12, the second plate 312 has a first section p1, a second section p2, a third section p3, a fourth section p4, and a fifth section p5 connected in sequence along the first direction F1. The second section p2 and the fourth section p4 on the second plate body 312 may be thinned before step S2, or the second section p2 and the fourth section p4 on the second plate body 312 may be thinned when step S2 is performed, which may be performed according to actual use requirements, and this embodiment of the present application does not specifically limit this. The first section p1, the third section p3 and the fifth section p5 correspond to the straight section a, and the second section p2 and the fourth section p4 correspond to the bent section b and the extending section c.

After the heat management member 30 is manufactured by the above method, a first joint J1 may be provided at the liquid inlet k1, and a second joint J2 may be provided at the liquid outlet k 2. The cooling water flows into the accommodating space s from the liquid inlet k1 via the first joint J1, flows out from the liquid outlet k2, and flows into the target position via the second joint J2. The receiving spaces s in two adjacent straight sections a on the body 31 are communicated with each other by the receiving spaces s in the bent section b and the extended section c. Thus, three-side water cooling can be realized. In the process, the hot rolling process, the punch forming process and the blowing process are adopted, the manufacturing efficiency is high, the whole weight of the heat management component 30 can be reduced due to the fact that superplastic metal materials such as aluminum alloy can be used, and the problems of low efficiency and heavy whole weight caused by machining can be solved.

To sum up, thermal management part 30 in this application is provided with thin district x through the region that corresponds bending section b in at least one of first plate body 311 and second plate body 312, make the plate body thickness that corresponds bending section b reduce, can reduce the rigidity of the plate body that corresponds bending section b, and then make and can obtain the accommodation space s of predetermineeing the size when forming accommodation space s, avoid producing the influence to the velocity of flow of the heat transfer medium of accommodation space s through bending section b department, thereby effectively improved thermal management part 30's radiating effect, can satisfy the heat dissipation demand.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. A thermal management component (30), comprising:

the heat exchanger comprises a body (31), wherein the body (31) comprises a first plate body (311) and a second plate body (312) which are stacked, an accommodating space(s) is formed between the first plate body (311) and the second plate body (312), and the accommodating space(s) is used for accommodating a heat exchange medium;

the body (31) is provided with a straight section (a) and a bent section (b), the bent section (b) is arranged between the two straight sections (a) extending along different directions, and at least one of the first plate body (311) and the second plate body (312) is provided with a thinning area (x) in an area corresponding to the bent section (b).

2. The heat management member (30) according to claim 1, wherein the second plate body (312) is provided with the thinned region (x) in a region corresponding to the bent section (b), and wherein the thinned region (x) is a groove structure having a bottom wall with a thickness smaller than a plate body thickness of the second plate body (312) corresponding to the straight section (a).

3. A heat management member (30) according to claim 2, wherein the first plate body (311) is adapted to exchange heat with a target member, and the body (31) is bent in a direction towards the first plate body (311) along the second plate body (312).

4. A heat management member (30) according to claim 3, wherein the groove structure is provided on a surface of the second plate body (312) facing away from the receiving space(s), the groove structure extending in a bending direction of the bending section (b).

5. A heat management member (30) according to claim 1, characterized in that the second plate body (312) is provided with the thinned zone (x) in a region corresponding to the bending section (b);

the ratio Q1 of the plate thickness of the thinning area (x) to the plate thickness of the second plate (312) in the straight section (a) meets the condition that Q1 is more than or equal to 0.7 and less than or equal to 0.8.

6. A heat management member (30) according to claim 1, wherein the second plate body (312) is provided with the thinned region (x) in a region corresponding to the bent section (b), and the yield strength of the plate body in the thinned region (x) is 100 mpa or less.

7. A heat management member (30) according to claim 1, wherein the body (31) is further provided with an extension section (c) which is engaged between the bent section (b) and the corresponding straight section (a);

the thickness of the plate body of the first plate body (311) and the second plate body (312) provided with the thinning area (x) at the extending section (c) is smaller than that of the plate body corresponding to the straight section (a);

wherein, the extending direction of the extending section (c) is the same as the extending direction of the connected corresponding straight section (a).

8. The heat management member (30) according to claim 7, wherein the second plate body (312) is provided with a thinned area (x) in a region corresponding to the bend (b);

the ratio Q2 of the plate thickness of the second plate body (312) in the extension section (c) to the plate thickness of the second plate body (312) in the straight section (a) meets the requirement that Q2 is more than or equal to 0.7 and less than or equal to 0.8.

9. The heat management component (30) according to claim 7, wherein the yield strength of the second plate body (312) in the plate body of the extension section (c) is 100 mpa or less.

10. The thermal management member (30) of claim 7, wherein the extension (c) has a width dimension of no less than 10 millimeters;

wherein the width dimension of the extension section (c) is the dimension of the extension section (c) in the direction of the straight section (a) connected with the extension section (c) and the bending section (b) connected with the extension section (c).

11. A heat managing member (30) according to anyone of claims 1-10 characterized in that said bent section (b) is smoothly connected between two of said straight sections (a).

12. A heat management member (30) according to claim 11, wherein the body (31) has a bend inner diameter at the bend section (b) of 8 mm or more.

13. A heat managing member (30) according to anyone of claims 1-10 characterized in that said body (31) is provided with two said bent sections (b) and three said straight sections (a);

two of the three straight sections (a) are positioned at two sides of the other straight section (a) along a preset direction, and the two straight sections (a) are respectively connected with the corresponding sides of the other straight section (a) by means of the corresponding bent sections (b).

14. A heat management member (30) according to claim 13, characterized in that the body (31) has the same bending angle in both parts of the two of said flat sections (a) compared to the body (31) in the remaining one of said flat sections (a).

15. A heat managing member (30) according to any of the claims 1-10 characterized in that in the two straight sections (a) where said bent sections (b) meet, the directions of extension of the two straight sections (b) are perpendicular to each other.

16. A heat management member (30) according to any of claims 1-10, wherein the body (31) is integrally formed with the straight section (a) and the bent section (b).

17. A heat management member (30) according to any of claims 1-10, characterized in that at least one of the first plate (31) and the second plate (32) is formed with the receiving space(s) by means of an inflation moulding process.

18. A thermal management system, characterized in that it comprises a thermal management component (30) according to any of claims 1-17.

19. A battery case (10) for housing a battery cell (20), characterized in that it comprises a thermal management member (30) according to any one of claims 1 to 17, said thermal management member (30) being adapted to exchange heat with said battery cell (20).

20. A battery (100), comprising:

a battery cell (20);

the battery case (10) according to claim 19, the battery case (10) accommodating the battery cells (20).

21. A battery (100) comprising a plurality of battery cells (20) and the thermal management system of claim 19;

the thermal management system is used for exchanging heat with the battery cell (20).

22. An electric consumer, characterized in that it comprises a battery (100) according to claim 20 or 21, said battery (100) being adapted to provide electric energy to said consumer.