Photo frame and module

Abstract

The utility model discloses a photo frame, which is used for installing a soft package battery cell and comprises two heat conduction pieces, and the two heat conduction pieces are used for respectively contacting two opposite sides of the soft package battery cell. According to the utility model, the problem of potential safety hazards caused by different temperatures due to non-uniform heat dissipation of the two sides of the soft package battery cell is solved, the heat dissipation uniformity and heat dissipation efficiency of the soft package battery cell are improved, and the safety and the charging efficiency are further improved. The utility model further discloses a module.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a photo frame and a module. Background Art

[0002] As the core component of new energy vehicles, power batteries are an important link in the new energy vehicle industry chain. The safety and charging efficiency of power batteries are important concerns.

[0003] The power battery module includes a soft-pack battery cell module and a square-shell battery cell module. In the existing technology, the soft-pack battery cell module conducts the heat of the soft-pack battery cell through the photo frame. However, the assembly relationship between the photo frame and the soft-pack battery cell makes it difficult to achieve uniform and efficient heat dissipation of the soft-pack battery cell, which affects the charging efficiency and poses certain safety hazards. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a photo frame and module to solve the problem of uneven heat dissipation on both sides of the soft-pack battery cell, resulting in different temperatures and potential safety hazards, and to improve the heat dissipation uniformity and efficiency of the soft-pack battery cell, thereby improving safety and charging efficiency.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A photo frame is used for installing a soft-pack battery core, comprising two heat-conducting members, wherein the two heat-conducting members are used to contact two opposite sides of the soft-pack battery core respectively.

[0007] In one embodiment, the photo frame has a first direction, and the two heat conductive members are used to respectively contact two opposite sides of the soft-pack battery cell along the first direction, and the first direction is parallel to the thickness direction of the soft-pack battery cell.

[0008] In one embodiment, the photo frame includes a splicing portion connected to the two heat conducting members, and the splicing portion is used to be detachably connected to the splicing portion of another photo frame.

[0009] In one embodiment, the photo frame has a first direction, and the splicing portion is provided with a first protrusion and a first groove; along the first direction, the first protrusion and the first groove are used to plug and connect the splicing portions on adjacent photo frames.

[0010] In one embodiment, the photo frame has a first direction, the two heat conductive members are arranged along the first direction, the soft-pack battery cell is installed between the two heat conductive members, the splicing portion includes a splicing body, the heat conductive member is connected to the splicing body, and the splicing body is provided with a tab outlet for the tab of the soft-pack battery cell to pass through.

[0011] In one embodiment, the splicing body includes a first splicing body and a second splicing body that are detachably connected, and the two heat-conducting parts are respectively connected to the corresponding first splicing body and the second splicing body; the photo frame includes a first single frame and a second single frame, the first single frame includes the first splicing body and the heat-conducting part connected thereto, and the second single frame includes the second splicing body and the heat-conducting part connected thereto.

[0012] In one embodiment, the heat conducting member includes a first heat conducting plate and a second heat conducting strip, the first heat conducting plate is used to contact the surface of the soft-pack battery cell that is perpendicular to the first direction, the splicing body is connected to the edge of the first heat conducting plate corresponding to the pole ear side, and the other edges of the first heat conducting plate are connected to the second heat conducting strip; along the first direction, the second heat conducting strip extends from the first heat conducting plate where it is located to the other first heat conducting plate of the photo frame.

[0013] In one embodiment, the splicing portion further includes a clamping body connected to the splicing body, and the clamping body is located between the second thermally conductive strip and the soft-pack battery cell.

[0014] The present invention also provides a module comprising a plurality of stacked battery cell units, wherein the battery cell units include the above-mentioned photo frame and a soft-pack battery cell installed in the photo frame.

[0015] In one embodiment, two adjacent battery cell units are detachably connected through their respective photo frames, and a clamping gap is reserved between the two adjacent photo frames after the detachable connection. A clamping component is provided in the clamping gap, and the clamping component is a heat insulating component and / or a deformable component.

[0016] The beneficial effects of the utility model are as follows: the photo frame includes two heat-conducting members, which are used to contact the two opposite sides of the soft-pack battery cell respectively to conduct the heat of the soft-pack battery cell outward, so that the two opposite sides of the soft-pack battery cell can contact the heat-conducting members and dissipate heat evenly, avoiding the problem of different heat dissipation on both sides of the soft-pack battery cell causing different temperatures and causing safety hazards, and improving the service life; and the heat of each soft-pack battery cell is conducted by the two heat-conducting members, which can improve the heat dissipation efficiency, and thus is conducive to improving the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of the module of an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of module 1 disassembly;

[0020] Figure 3 yes Figure 2 A schematic structural diagram of a battery cell unit in FIG.

[0021] Figure 4 yes Figure 3 Schematic diagram of disassembly of the battery cell unit;

[0022] Figure 5 yes Figure 4 A schematic structural diagram of the first single frame in FIG;

[0023] Figure 6 yes Figure 4 A schematic structural diagram of the second single frame in FIG.

[0024] Figure 7 yes Figure 5 Schematic diagram of the disassembly of the first single frame;

[0025] Figure 8 yes Figure 6 Schematic diagram of the disassembly of the second single frame;

[0026] Figure 9 yes Figure 1 Schematic diagram of another disassembly method of the module;

[0027] Figure 10 yes Figure 1 A schematic front view of the module.

[0028] In the figure: 1. Photo frame; 1A. First single frame; 1B. Second single frame; 11. Heat conducting member; 111. First heat conducting plate; 112. Second heat conducting strip; 12. Splicing portion; 12A. Splicing body; 12B. Clamping body; 121. First protrusion; 122. First groove; 123. Tab outlet; 124. First splicing body; 125. Second splicing body; 126. Second protrusion; 127. Second groove; 2. Soft-pack battery cell; 21. Tab; 3. Clamping member; 4. Module; 41. Fixed end plate; 42. Bus bar; 43. Fireproof board; 5. Battery cell unit. DETAILED DESCRIPTION

[0029] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0030] In the description of this utility model, unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0031] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0032] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature and do not indicate or imply relative importance or a particular order.

[0033] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0034] The utility model provides a photo frame 1, such as Figures 1 to 10As shown, the photo frame 1 is used to install the soft-pack battery cell 2, and the two heat-conducting members 11 are used to contact the opposite sides of the soft-pack battery cell 2 respectively. In this embodiment, the photo frame 1 includes two heat-conducting members 11 that contact the opposite sides of the soft-pack battery cell 2 respectively. The heat-conducting members 11 are used to conduct the heat of the soft-pack battery cell 2 outward, so that the two sides of the soft-pack battery cell 2 dissipate heat evenly, avoiding the safety hazard caused by uneven heat dissipation and temperature differences when only one side of the opposite sides of the soft-pack battery cell 2 contacts the heat-conducting member 11, thereby improving the service life; and the heat of each soft-pack battery cell 2 is conducted by two heat-conducting members 11, which can improve the heat dissipation efficiency and thus help improve the charging efficiency; at the same time, the two heat-conducting members 11 contact the opposite sides of the soft-pack battery cell 2 respectively, which is conducive to better protecting the soft-pack battery cell 2. During assembly, the soft-pack battery cell 2 can be installed in the photo frame 1 before stacking, avoiding damage to the soft-pack battery cell 2 during the stacking process, thereby ensuring the quality of the assembled module 4. The heat conducting member 11 can be made of metal aluminum, which has fast heat conduction and is lightweight, and can quickly conduct the heat of the soft-pack battery cell 2 without increasing the weight of the photo frame 1 too much.

[0035] As an implementation method, Figures 1 to 4 As shown, the photo frame 1 has a first direction X, and two thermally conductive members 11 are used to contact two opposing sides of the soft-pack battery cell 2 along the first direction X, respectively. The first direction X is parallel to the thickness of the soft-pack battery cell 2. The dimension of the soft-pack battery cell 2 in the thickness direction is less than or equal to its dimension in the length or width direction. The first direction X is parallel to the thickness direction of the soft-pack battery cell 2, which helps reduce the maximum external dimensions of the final stacked module 4. In addition, the soft-pack battery cell 2 generally does not have tabs 21 along the thickness direction, preventing the tabs 21 from interfering with the stacking of the soft-pack battery cells 2 or the removable connection of adjacent photo frames 1. The two opposing side surfaces of the soft-pack battery cell 2 along the thickness direction have a large area. In this embodiment, the thermally conductive members 11 contact the large surface area of ​​the soft-pack battery cell 2, which helps improve heat conduction efficiency and thus improve heat dissipation performance.

[0036] As an implementation method, Figures 1 to 3 As shown, the photo frame 1 includes a splicing portion 12, which is connected to two heat-conducting members 11. The splicing portion 12 is used to removably connect to the splicing portion 12 of another photo frame 1. Specifically, the soft-pack battery cell 2 is first installed in the corresponding photo frame 1 to form a battery unit 5. Then, multiple battery units 5 are stacked along the first direction X to form a module 4. Two adjacent photo frames 1 are connected to each other via the splicing portion 12, making stacking more convenient. The splicing portion 12 is an insulating member and can be made of plastic. The splicing portion 12 has a thermal melting point, and the heat-conducting members 11 and the splicing portion 12 are thermally melted together.

[0037] As an implementation method, Figures 1 to 3As shown, the photo frame 1 has a first direction X, and the splicing portion 12 is provided with a first protrusion 121 and a first groove 122; along the first direction X, the first protrusion 121 and the first groove 122 are used to plug and connect the splicing portions 12 of adjacent photo frames 1. Specifically, the photo frames 1 of the module 4 are stacked along the first direction X, and the surface of the splicing portion 12 perpendicular to the first direction X is provided with the first protrusion 121 and / or the first groove 122; along the first direction X, the first protrusion 121 and the first groove 122 are used to plug and connect the splicing portions 12 of adjacent photo frames 1.

[0038] As an implementation method, Figure 3 and Figure 4 As shown, the photo frame 1 has a first direction X, and two heat-conducting members 11 are arranged along the first direction X. The soft-pack battery cell 2 is installed between the two heat-conducting members 11. The splicing portion 12 includes a splicing body 12A. The heat-conducting member 11 is connected to the splicing body 12A. The splicing body 12A is provided with a tab outlet 123 for the tab 21 of the soft-pack battery cell 2 to pass through. Among them, the soft-pack battery cell 2 has a tab outlet direction S, which is perpendicular to the thickness direction of the soft-pack battery cell 2. The splicing body 12A is located on the tab outlet 21 side of the soft-pack battery cell 2. The splicing body 12A is provided with a tab outlet 123, so that the tab 21 of the soft-pack battery cell 2 can pass through the tab outlet 123.

[0039] As an implementation method, Figures 1 to 10 As shown, the splicing body 12A includes a first splicing body 124 and a second splicing body 125 that are detachably connected. Two heat-conducting members 11 are respectively connected (one-to-one) to the corresponding first splicing body 124 and the second splicing body 125. The photo frame 1 includes a first single frame 1A and a second single frame 1B. The first single frame 1A includes the first splicing body 124 and the heat-conducting member 11 connected thereto, and the second single frame 1B includes the second splicing body 125 and the heat-conducting member 11 connected thereto. After the soft-pack battery cell 2 is loaded into the first single frame 1A, the second single frame 1B is snapped onto the first single frame 1A, so that the first splicing body 124 and the second splicing body 125 are connected to each other, completing the assembly of the soft-pack battery cell 2 and the photo frame 1, forming a battery cell unit 5. The battery cell units 5 are then stacked to form a module 4, making assembly convenient and quick.

[0040] As an implementation method, Figures 3 to 6As shown, the thermally conductive member 11 includes a first thermally conductive plate 111 and a second thermally conductive strip 112. The first thermally conductive plate 111 is used to contact the surface of the soft-pack battery cell 2 perpendicular to the first direction X. The splicing body 12A is connected to the edge of the first thermally conductive plate 111 corresponding to (close to) the tab 21. The other edges of the first thermally conductive plate 111 are connected to the second thermally conductive strip 112. Along the first direction X, the second thermally conductive strip 112 extends from the first thermally conductive plate 111 to the other first thermally conductive plate 111 of the photo frame 1. That is, the edge of the first thermally conductive plate 111 not connected to the splicing body 12A is connected to the second thermally conductive strip 112 on the side close to the other first thermally conductive plate 111 of the photo frame 1 in the first direction X. As a result, the splicing portion 12 of the photo frame 1 and the two thermally conductive members 11 can surround the corresponding soft-pack battery cell 2 to better protect the soft-pack battery cell 2. The second thermally conductive strip 112 is used to contact the liquid cooling plate (not shown) to transfer heat from the first thermally conductive plate 111. Specifically, when the soft-pack battery cell 2 has a tab 21 on one side, three of the four edges of the first heat conducting plate 111 are connected to the second heat conducting bar 112; when the soft-pack battery cell 2 has two tabs 21 on opposite sides (this situation is not shown in the figure), two of the four edges of the first heat conducting plate 111 are connected to the second heat conducting bar 112.

[0041] As an implementation method, Figures 1 to 4 As shown, along the first direction X, in the photo frame 1, the first splicing body 124 is provided with a first protrusion 121 and / or a first groove 122 on a side away from the second splicing body 125, and the second splicing body 125 is provided with a first groove 122 and / or a first protrusion 121 on a side away from the first splicing body 124. The specific connection between the photo frames 1 includes:

[0042] 1. A first groove 122 is provided on a side of the first splicing body 124 away from the second splicing body 125, and a first protrusion 121 is provided on a side of the second splicing body 125 away from the first splicing body 124. The first splicing body 124 is connected to the first protrusion 121 of the second splicing body 125 closest to the photo frame 1 via the first groove 122, and the second splicing body 125 is connected to the first groove 122 of the first splicing body 124 closest to the photo frame 1 via the first protrusion 121.

[0043] 2. A first protrusion 121 is provided on a side of the first splicing body 124 away from the second splicing body 125, and a first groove 122 is provided on a side of the second splicing body 125 away from the first splicing body 124. The first splicing body 124 is connected to the first groove 122 of the second splicing body 125 closest to the photo frame 1 via the first protrusion 121, and the second splicing body 125 is connected to the first protrusion 121 of the first splicing body 124 closest to the photo frame 1 via the first groove 122.

[0044] 3. A first protrusion 121 and a first groove 122 are provided on the side of the first splicing body 124 away from the second splicing body 125, and a first groove 122 and a first protrusion 121 are provided on the side of the second splicing body 125 away from the first splicing body 124. The first splicing body 124 and the second splicing body 125 of the photo frame 1 closest to it are correspondingly connected through their respective first grooves 122 and first protrusions 121, and the second splicing body 125 and the first splicing body 124 of the photo frame 1 closest to it are correspondingly connected through their respective first grooves 122 and first protrusions 121.

[0045] As an implementation method, Figures 4 to 10 As shown, along the first direction X, in the photo frame 1, the first splicing body 124 of the first single frame 1A is provided with a second protrusion 126 and / or a second groove 127 on a side close to the second splicing body 125 of the second single frame 1B, and the second splicing body 125 of the second single frame 1B is provided with a corresponding second groove 127 and / or a second protrusion 126 on a side close to the first splicing body 124 of the first single frame 1A. The situation in which the first single frame 1A and the second single frame 1B are connected to form the photo frame 1 specifically includes:

[0046] 1. A second protrusion 126 is provided on one side of the first splicing body 124 close to the second splicing body 125, and a corresponding second groove 127 is provided on one side of the second splicing body 125 close to the first splicing body 124. The first splicing body 124 is connected to the second groove 127 of the second splicing body 125 via the second protrusion 126;

[0047] 2. A second groove 127 is provided on the side of the first splicing body 124 close to the second splicing body 125, and a corresponding second protrusion 126 is provided on the side of the second splicing body 125 close to the first splicing body 124. The first splicing body 124 is connected to the second protrusion 126 of the second splicing body 125 through the second groove 127;

[0048] 3. A second protrusion 126 and a second groove 127 are provided on the side of the first splicing body 124 close to the second splicing body 125, and a corresponding second groove 127 and second protrusion 126 are provided on the side of the second splicing body 125 close to the first splicing body 124. The first splicing body 124 is connected to the corresponding second groove 127 and second protrusion 126 of the second splicing body 125 through the second protrusion 126 and the second groove 127.

[0049] As an implementation method, Figures 1 to 10 As shown, in order to improve the structural strength of the first splicing body 124 and the second splicing body 125 in the photo frame 1 and make the thickness of the first splicing body 124 or the second splicing body 125 more balanced, the following three situations can be set:

[0050] 1. When the first splicing body 124 is provided with a first groove 122 on a side away from the second splicing body 125, a second protrusion 126 is provided at a corresponding position on the side of the first splicing body 124 close to the second splicing body 125, a second groove 127 is provided at a corresponding position on the side of the second splicing body 125 close to the first splicing body 124, and a first protrusion 121 is provided on a side of the second splicing body 125 away from the first splicing body 124;

[0051] 2. When the first splicing body 124 is provided with a first protrusion 121 on a side away from the second splicing body 125, a second groove 127 is provided at a corresponding position on a side of the first splicing body 124 close to the second splicing body 125, a second protrusion 126 is provided at a corresponding position on a side of the second splicing body 125 close to the first splicing body 124, and a first groove 122 is provided on a side of the second splicing body 125 away from the first splicing body 124;

[0052] 3. When the first splicing body 124 is provided with a first protrusion 121 and a first groove 122 on a side away from the second splicing body 125, then: on the side of the first splicing body 124 close to the second splicing body 125, a second groove 127 is provided corresponding to the first protrusion 121 of the first splicing body 124, and a second protrusion 126 is provided corresponding to the first groove 122 of the first splicing body 124; on the side of the second splicing body 125 close to the first splicing body 124, a second protrusion 126 is provided corresponding to the second groove 127 of the first splicing body 124, and a second groove 127 is provided corresponding to the second protrusion 126 of the first splicing body 124; on the side of the second splicing body 125 away from the first splicing body 124, a first groove 122 is provided corresponding to the second protrusion 126 of the second splicing body 125, and a first protrusion 121 is provided corresponding to the second groove 127 of the second splicing body 125.

[0053] As an implementation method, Figures 3 to 8As shown, the splicing portion 12 further includes a clamping body 12B connected to the splicing body 12A. The clamping body 12B is located between the second thermally conductive strip 112 and the soft-pack battery cell 2. Specifically, the first splicing body 124 and the second splicing body 125 are both connected to the clamping body 12B. The clamping body 12B is used to support the side of the soft-pack battery cell 2 that is not provided with the tab 21 and is parallel to the first direction X. The clamping body 12B is located between the soft-pack battery cell 2 and the second thermally conductive strip 112, so that the clamping body 12B can support and protect the soft-pack battery cell 2. The first single frame 1A includes a first splicing body 124 and a heat-conducting member 11 and a clamping body 12B connected to the first splicing body 124. The second single frame 1B includes a second splicing body 125 and a heat-conducting member 11 and a clamping body 12B connected to the second splicing body 125. The clamping body 12B of the first single frame 1A and the clamping body 12B of the second single frame 1B are spliced ​​along the first direction X to jointly support and protect the soft-pack battery cell 2.

[0054] As an implementation method, Figures 3 to 8 As shown, when the soft-pack battery cell 2 has a tab 21 on only one side, with the tab 21 facing upward, the clamping body 12B of the first single frame 1A is continuously arranged in a U shape, and the clamping body 12B of the second single frame 1B is opened on the side away from the second splicing body 125, and the clamping body 12B of the first single frame 1A extends into the opening at a part away from the side of the first splicing body 124. During assembly, the soft-pack battery cell 2 can be assembled with the first single frame 1A first and then the second single frame 1B can be installed, which is beneficial to avoid squeezing and damaging the bottom of the soft-pack battery cell 2 when the first single frame 1A and the second single frame 1B are spliced.

[0055] The present invention also provides a module 4, such as Figures 1 to 3 As shown, the photo frame 1 includes multiple stacked battery cells 5, each of which includes the aforementioned photo frame 1 and a soft-pack battery cell 2 mounted within the photo frame 1. Each photo frame 1 is mounted with one soft-pack battery cell 2, which better protects the soft-pack battery cell 2 and facilitates contact between the thermally conductive elements 11 on both sides of the soft-pack battery cell 2. Specifically, the soft-pack battery cell 2 is sandwiched between two thermally conductive elements 11 of the photo frame 1, and the multiple battery cells 5 are arranged along a first direction X.

[0056] As an implementation method, Figure 1 and Figure 2 As shown, two adjacent battery core units 5 are detachably connected via their respective photo frames 1 .

[0057] As an implementation method, Figures 2 to 4 、 Figure 9As shown, a clamping gap (not shown) is reserved between two adjacent photo frames 1 after detachable connection, and a clamping component 3 is provided in the clamping gap, which is a thermal insulation component and / or a deformable component. In this way, a thermal insulation component can be provided in the clamping gap to hinder heat conduction between adjacent soft-pack batteries 2 and delay the spread of thermal runaway. The provision of the thermal insulation component does not affect the contact between the thermal conductive component 11 on both opposite sides of the soft-pack batteries 2 along the first direction X. A deformable component can also be provided in the clamping gap to absorb the expansion of the soft-pack batteries 2. Specifically, along the first direction X, the first protrusion 121 is longer and the first groove 122 is deeper. The degree of detachable connection of the two photo frames 1 (the degree of plug-in tightness along the first direction X) can be adjusted according to the plug-in tightness of their respective first protrusions 121 and first grooves 122. That is, the size of the clamping gap in the first direction X is adjustable, so as to flexibly clamp the required thermal insulation component and / or deformable component and other clamping components 3. The clamping component 3 can be made of a single material or a composite material according to the needs. The clamping component 3 can be made of foam to meet the requirements of deformation and heat insulation at the same time.

[0058] The present invention further provides a battery pack (not shown) comprising a liquid cooling plate (not shown) and the module 4 described above, wherein each heat conducting member 11 contacts the liquid cooling plate via a corresponding second heat conducting strip 112. Specifically, the first heat conducting plate 111 contacts the side surface of the heat exchange soft-pack battery cell 2 along the thickness direction and transfers heat to the second heat conducting strip 112, which in turn transfers heat to the liquid cooling plate.

[0059] As an implementation method, Figures 1 to 4 As shown, along the first direction X, fixed end plates 41 are provided on both sides of the module 4, and the module 4 is provided with a bus 42 and a fireproof plate 43 on the side of the output ear 21 of the soft-pack battery cell 2. The fireproof plate 43 plays a role in resisting flame impact.

[0060] As an embodiment, the fixed end plate 41 is composed of a die-cast part, a deformable heat-insulating part, and an insulating film, and is used for assembling and fixing the module 4 itself, as well as installing the module 4 in the battery pack.

[0061] As an embodiment, the photo frame 1 and the fixed end plate 41 are provided with a tie limiting groove (not shown), the tie limiting groove has a guiding inclined surface, and the fixed end plate 41 and the photo frame 1 equipped with the soft-pack battery cell 2 are constrained by the tie after being stacked.

[0062] The photo frame 1 of the present invention includes two heat-conducting members 11 respectively arranged on opposite sides of the soft-pack battery cell 2. The heat-conducting members 11 are used to conduct the heat of the soft-pack battery cell 2 outward, so that the two sides of the soft-pack battery cell 2 dissipate heat evenly, avoiding the safety hazard caused by different temperatures due to different heat dissipation on the two sides when only one of the two opposite sides of the soft-pack battery cell 2 contacts the heat-conducting member 11, thereby improving the service life; and the heat of each soft-pack battery cell 2 is correspondingly conducted by two heat-conducting members 11, which can improve the heat dissipation efficiency and thus help improve the charging efficiency; at the same time, the two heat-conducting members 11 respectively contact the opposite sides of the soft-pack battery cell 2, which is conducive to better protection of the soft-pack battery cell 2. During assembly, the soft-pack battery cell 2 can be installed in the photo frame 1 before being stacked, so as to avoid damage to the soft-pack battery cell 2 during the stacking process, thereby ensuring the quality of the assembled module 4.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the technical content disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A photo frame for mounting a soft-pack battery cell (2), characterized in that: It comprises two heat conducting members (11), and the two heat conducting members (11) are used to respectively contact two opposite sides of the soft-pack battery core (2).

2. The photo frame according to claim 1, wherein: The photo frame (1) has a first direction (X), and the two heat-conducting members (11) are used to respectively contact two opposite sides of the soft-pack battery core (2) along the first direction (X), and the first direction (X) is parallel to the thickness direction of the soft-pack battery core (2).

3. The photo frame according to claim 1, wherein: The photo frame (1) comprises a splicing portion (12), the splicing portion (12) is connected to the two heat-conducting members (11), and the splicing portion (12) is used for detachably connecting to the splicing portion (12) of another photo frame (1).

4. The photo frame according to claim 3, wherein: The photo frame (1) has a first direction (X), and the splicing portion (12) is provided with a first protrusion (121) and a first groove (122); along the first direction (X), the first protrusion (121) and the first groove (122) are used for plugging and connecting the splicing portion (12) on the adjacent photo frame (1).

5. The photo frame according to claim 3, wherein: The photo frame (1) has a first direction (X), the two heat-conducting members (11) are arranged along the first direction (X), the soft-pack battery core (2) is installed between the two heat-conducting members (11), the splicing portion (12) includes a splicing body (12A), the heat-conducting member (11) is connected to the splicing body (12A), and the splicing body (12A) is provided with a tab outlet (123) for the tab (21) of the soft-pack battery core (2) to pass through.

6. The photo frame according to claim 5, wherein: The splicing body (12A) comprises a first splicing body (124) and a second splicing body (125) that are detachably connected, and the two heat-conducting parts (11) are respectively connected to the corresponding first splicing body (124) and the second splicing body (125); the photo frame (1) comprises a first single frame (1A) and a second single frame (1B), the first single frame (1A) comprises the first splicing body (124) and the heat-conducting part (11) connected thereto, and the second single frame (1B) comprises the second splicing body (125) and the heat-conducting part (11) connected thereto.

7. The photo frame according to claim 5, wherein: The heat conducting member (11) comprises a first heat conducting plate (111) and a second heat conducting strip (112), wherein the first heat conducting plate (111) is used to contact a surface of the soft-pack battery cell (2) perpendicular to the first direction (X), the splicing body (12A) is connected to an edge of the first heat conducting plate (111) corresponding to the side of the pole ear (21), and the other edge of the first heat conducting plate (111) is connected to the second heat conducting strip (112); along the first direction (X), the second heat conducting strip (112) extends from the first heat conducting plate (111) where it is located to another first heat conducting plate (111) of the photo frame (1).

8. The photo frame according to claim 7, wherein: The splicing portion (12) further includes a clamping body (12B) connected to the splicing body (12A), and the clamping body (12B) is located between the second heat-conducting strip (112) and the soft-pack battery core (2).

9. A module, characterized in that: The invention comprises a plurality of stacked battery cell units (5), wherein the battery cell units (5) include a photo frame (1) according to any one of claims 1 to 8 and a soft-pack battery cell (2) installed in the photo frame (1).

10. The module according to claim 9, wherein: Two adjacent battery core units (5) are detachably connected via their respective photo frames (1); a clamping gap is reserved between the two adjacent photo frames (1) after the detachable connection; a clamping component (3) is provided in the clamping gap; and the clamping component (3) is a heat insulating component and / or a deformable component.

Images