Battery support and battery module

Abstract

This application discloses a battery bracket and a battery module, relating to the field of battery technology. The battery bracket includes a first thermally conductive enclosure, a second thermally conductive enclosure, a third thermally conductive enclosure, and a thermally conductive separator. The second thermally conductive enclosure is arranged parallel to the first thermally conductive enclosure along a first direction. The first, second, and third thermally conductive enclosures are connected to form an accommodating space with an opening on one side. The thermally conductive separator is disposed within the accommodating space, and the first, second, and third thermally conductive enclosures are respectively connected to the thermally conductive separator. The thermally conductive separator divides the accommodating space into a first battery storage position and a second battery storage position arranged along a second direction. The battery bracket provided by this application allows the back or front of each battery cell to contact the heat dissipation separator, and also allows the three outer peripheral surfaces of the battery cell to contact the first, second, and third thermally conductive enclosures respectively. Each battery cell has four heat dissipation surfaces, increasing the heat dissipation area of ​​each battery cell and improving the heat dissipation efficiency of the battery cell.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery bracket and a battery module. Background Technology

[0002] Pouch cells are widely used in lithium batteries due to their high space utilization and high energy density, resulting from their tight stacking during assembly. Multiple pouch cells are typically arranged in a tight stack to save space, leading to large contact areas between the cells. During heat dissipation, heat must first be conducted from the inside of the cell to the edges, and then through the edges to the outer casing. This small heat conduction path reduces overall heat dissipation efficiency. Utility Model Content

[0003] In view of this, this application provides a battery bracket and a battery module, with the aim of solving one of the technical problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, this application provides a battery holder, the battery holder comprising: First heat-conducting enclosure; The second heat-conducting enclosure is arranged parallel to the first heat-conducting enclosure along the first direction; The third heat-conducting enclosure, the first heat-conducting enclosure, the second heat-conducting enclosure and the third heat-conducting enclosure are connected to form an accommodating space with an opening on one side; A thermally conductive partition is disposed within the accommodating space. The first thermally conductive enclosure, the second thermally conductive enclosure, and the third thermally conductive enclosure are respectively connected to the thermally conductive partition. The thermally conductive partition divides the accommodating space into a first battery storage position and a second battery storage position disposed along a second direction, wherein the first direction is perpendicular to the second direction.

[0005] In an optional implementation, The battery bracket also includes multiple coupling components; The connecting member is disposed on the side of the first heat-conducting enclosure away from the receiving space. On the first heat-conducting enclosure, a plurality of the connecting members are spaced apart along the third direction, or... The connecting member is disposed on the side of the second heat-conducting enclosure away from the receiving space. On the second heat-conducting enclosure, a plurality of the connecting members are spaced apart along the third direction, wherein the first direction and the second direction are respectively perpendicular to the third direction.

[0006] In an optional embodiment, the coupling includes: Two first limiting posts, the first limiting posts extending along the second direction, and the two first limiting posts being spaced apart along the third direction; A buckle is provided on the side of the first limiting post near the first battery storage position, and in the second direction, the projection of the buckle is completely located between the two first limiting posts.

[0007] In an optional embodiment, in the second direction, one end of the buckle is connected to the first heat-conducting enclosure or the second heat-conducting enclosure, and the other end protrudes from the first heat-conducting enclosure or the second heat-conducting enclosure. The buckle has a buckle hole located on the part of the buckle that protrudes from the first heat-conducting enclosure or the second heat-conducting enclosure. The connector also includes a protrusion disposed between the two first limiting posts, wherein, in the second direction, the projection of the protrusion is completely located within the buckle hole.

[0008] In an optional embodiment, at least one of the first heat-conducting enclosure, the second heat-conducting enclosure, and the third heat-conducting enclosure is provided with a flow guide hole, which communicates with the accommodating space.

[0009] In an optional embodiment, the battery holder further includes a partition panel disposed at the opening of the receiving space and connected to the thermally conductive partition. A portion of the partition plate faces the first battery storage location, and a portion of the partition plate faces the second battery storage location. Both sides of the partition plate, which is arranged along the second direction, are provided with extensions that protrude in a direction away from the partition plate. The extensions, the partition plate, and the first heat-conducting plate are connected to form a first electrode storage location, and the extensions, the partition plate, and the second heat-conducting plate are connected to form a second electrode storage location.

[0010] Secondly, this application provides a battery module, comprising: Multiple battery cells; In any of the preceding embodiments, a battery holder is provided, wherein a battery cell is placed in the first battery storage position and the second battery storage position of each battery holder, and the plurality of battery holders are stacked along the second direction and are detachably connected to each other.

[0011] In an optional embodiment, the battery module further includes a plurality of buffer pads located between the battery cell in the second storage position of the previous battery bracket and the battery cell in the first storage position of the next battery bracket.

[0012] In an optional embodiment, the battery module further includes a plurality of insulating pads located between the cell tabs of the second storage position of the previous battery holder and the cell tabs of the first storage position of the next battery holder.

[0013] In an optional embodiment, the battery module further includes a first end cover, a second end cover, and a fastening member, wherein the first end cover and the second end cover are disposed opposite to each other along the second direction, and the plurality of battery cells and the plurality of battery brackets are stacked between the first end cover and the second end cover; The fastening element is fitted onto the outside of the first end cap and the second end cap.

[0014] Compared to existing technologies, the advantages of this application are as follows: This application proposes a battery holder, including a first thermally conductive enclosure, a second thermally conductive enclosure, a third thermally conductive enclosure, and a thermally conductive separator; the second thermally conductive enclosure is arranged parallel to the first thermally conductive enclosure along a first direction; the first, second, and third thermally conductive enclosures are connected to form an accommodating space with an opening on one side; the thermally conductive separator is disposed within the accommodating space, and the first, second, and third thermally conductive enclosures are respectively connected to the thermally conductive separator, which divides the accommodating space into a first battery storage position and a second battery storage position arranged along a second direction. In this way, two battery cells are placed in different battery storage positions, so that the back or front of the battery cell contacts the heat dissipation separator, and the three outer peripheral surfaces of the battery cell respectively contact the first, second, and third thermally conductive enclosures. Each battery cell has four heat dissipation surfaces, increasing the heat dissipation area of ​​each battery cell and improving the heat dissipation efficiency of the battery cell. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 The following are schematic diagrams of the battery holder structure in some embodiments of this application; Figure 2 A schematic diagram of the assembly structure of the battery holder and two battery cells in some embodiments of this application is shown; Figure 3 The following are schematic diagrams of the battery module structure in some embodiments of this application; Figure 4 The following are exploded structural diagrams of battery modules in some embodiments of this application; Figure 5 This application shows a schematic diagram of a structure in which multiple battery holders are stacked in some embodiments; Figure 6 It shows Figure 3 A schematic diagram of the cross-sectional structure along the AA direction; Figure 7 It shows Figure 6 A magnified structural diagram of point I in the middle.

[0017] Key component symbols: 200-cell; 210-tab; 100-battery bracket; 110-first heat-conducting enclosure; 120-second heat-conducting enclosure; 130-third heat-conducting enclosure; 140-heat-conducting separator; 151-opening; 150-accommodating space; 152-first battery storage position; 153-second battery storage position; 160-jointing component; 161-first limiting post; 162-buckle; 1621-buckle hole; 163-protrusion; 154-flow guide hole; 170-partition enclosure. 171-Extension; 172-First tab storage position; 173-Second tab storage position; 174-Acquisition board mounting hole; 1000-Battery module; 300-Buffer pad; 400-Insulating pad; 500-PCB acquisition board; 600-First end cap; 700-Second end cap; 800-Fastening member; 180-Second limiting post; 181-Alignment area; 610-Alignment protrusion; 910-Housing shell; 920-Cover; D1-First direction; D2-Second direction; D3-Third direction. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] Due to its advantages such as high energy density, light weight, and flexible design, pouch cells have become one of the mainstream packaging forms for power batteries and energy storage batteries. During battery pack assembly, multiple pouch cells are usually arranged closely in a stacked manner to save space. This compact layout results in a large area of ​​the front and back surfaces of the cells being in direct contact during stacking, making heat dissipation difficult.

[0024] In related technologies, thermally conductive adhesive is used to cover the outside of the soft-pack battery cell. The contact area of ​​the thermally conductive adhesive is limited to the extremely narrow side edges around the battery cell. The thermally conductive adhesive is difficult to penetrate into the front and back of the battery cell stack. As a result, the heat generated by the battery cell can only be transferred to the battery module's outer shell through the contact of the thermally conductive adhesive on the four sides of the battery cell. This small heat conduction path reduces the overall heat dissipation efficiency of the battery module.

[0025] In response to the above problems, such as Figure 1 and Figure 2As shown, an embodiment of this application provides a battery bracket 100, mainly used to improve the heat dissipation efficiency of the pouch cell 200. The battery bracket 100 includes a first heat-conducting enclosure 110, a second heat-conducting enclosure 120, a third heat-conducting enclosure 130, and a heat-conducting separator 140.

[0026] The second heat-conducting enclosure 120 is arranged parallel to the first heat-conducting enclosure 110 along the first direction D1, and the first heat-conducting enclosure 110, the second heat-conducting enclosure 120 and the third heat-conducting enclosure 130 are connected to form an accommodating space 150 with an opening 151 on one side.

[0027] It is understood that the pouch cell 200 is usually rectangular, and the shape of the accommodating space 150 is the same as that of the pouch cell 200. The first thermally conductive plate 110, the second thermally conductive plate 120 and the third thermally conductive plate 130 surround and fit the outer periphery of the pouch cell 200. The first thermally conductive plate 110, the second thermally conductive plate 120 and the third thermally conductive plate 130 are all strip-shaped.

[0028] The pouch cell 200 includes two tabs 210, one of which is a positive tab and the other is a negative tab. The positive and negative tabs are located on one side end face of the pouch cell 200, and the opening 151 of the receiving space 150 is used to place the positive and negative tabs.

[0029] In one embodiment, the first thermally conductive enclosure 110, the second thermally conductive enclosure 120, the third thermally conductive enclosure 130, and the thermally conductive separator 140 are all made of a metallic material, such as aluminum. The aluminum first thermally conductive enclosure 110, second thermally conductive enclosure 120, third thermally conductive enclosure 130, and thermally conductive separator 140 provide good mechanical support, improving the overall structural strength of the battery bracket 100; they also reduce the overall weight of the battery bracket 100, and the good thermal conductivity of aluminum accelerates the heat dissipation of the battery cell 200.

[0030] In one embodiment, the heat dissipation area is increased by providing grooves or microchannel structures on the surfaces of the thermally conductive partition 140, the first thermally conductive enclosure 110, the second thermally conductive enclosure 120, or the third thermally conductive enclosure 130 facing the accommodating space 150. Furthermore, thermally conductive material can be added to the grooves or microchannel structures to improve thermal conductivity.

[0031] In one embodiment, the thermally conductive partition 140 may be a solid structure or a hollow structure. When the thermally conductive partition 140 is a hollow structure, liquid cooling pipes or air cooling pipes may be installed inside the thermally conductive partition 140.

[0032] See also Figure 2A thermally conductive partition 140 is disposed within the accommodating space 150. A first thermally conductive enclosure 110, a second thermally conductive enclosure 120, and a third thermally conductive enclosure 130 are respectively connected to the thermally conductive partition 140. The thermally conductive partition 140 divides the accommodating space 150 into a first battery storage position 152 and a second battery storage position 153 disposed along the second direction D2. In this way, the two battery cells 200 are placed in different battery storage positions, allowing... Figure 2 The back of the upper middle cell 200 is in contact with the heat dissipation plate. Figure 2 The front of the lower middle cell 200 contacts the heat dissipation partition, and the three outer peripheral surfaces of the cell 200 also contact the first heat-conducting enclosure 110, the second heat-conducting enclosure 120 and the third heat-conducting enclosure 130 respectively. Each cell 200 has four heat dissipation surfaces, which increases the heat dissipation area of ​​each cell 200 and improves the heat dissipation efficiency.

[0033] In some embodiments, in the second direction D2, the thickness of the first thermally conductive enclosure 110, the second thermally conductive enclosure 120, and the third thermally conductive enclosure 130 is not less than the total thickness of the two battery cells 200 + the thermally conductive separator 140, so as to increase the contact area between the battery bracket 100 and the battery cell 200 and enhance the heat dissipation effect.

[0034] It should be noted that the battery holder 100 includes a first direction D1, a second direction D2, and a third direction D3, which are perpendicular to each other. Specifically, the first direction D1 is the width direction of the pouch cell 200, the second direction D2 is the thickness direction of the pouch cell 200, and the third direction D3 is the length direction of the pouch cell 200.

[0035] In some embodiments, the battery holder 100 further includes a plurality of coupling members 160 for stacking and fixing two battery holders 100 along a second direction D2.

[0036] In one embodiment, such as Figure 2 As shown, the connector 160 is disposed on the side of the first heat-conducting enclosure 110 away from the receiving space 150, and the connector 160 is also disposed on the side of the second heat-conducting enclosure 120 away from the receiving space 150.

[0037] On the first heat-conducting enclosure 110, a plurality of connectors 160 are spaced apart along a third direction D3, and the number of connectors 160 can be set as needed. Figure 2 In this process, there are two joints 160, which are distributed on both sides of the first heat-conducting enclosure 110 along the third direction D3.

[0038] On the second heat-conducting enclosure 120, multiple connectors 160 are spaced apart along a third direction D3, and the number of connectors 160 can be set as needed. Figure 2In this process, there are two joints 160, which are distributed on both sides of the second heat-conducting enclosure 120 along the third direction D3.

[0039] In one embodiment, the connector 160 is disposed on the side of the first heat-conducting enclosure 110 away from the receiving space 150, connected to the side of the second heat-conducting enclosure 120 away from the receiving space 150, and also disposed on the side of the third heat-conducting enclosure 130 away from the receiving space 150.

[0040] The arrangement of the connectors 160 on the first heat-conducting enclosure 110 and the second heat-conducting enclosure 120 is as described above and will not be repeated here. On the third heat-conducting enclosure 130, there are multiple connectors 160, and the multiple connectors 160 are distributed at intervals along the first direction D1 of the third heat-conducting enclosure 130.

[0041] In one embodiment, the coupling 160 is disposed on the side of the first heat-conducting enclosure 110 opposite to the receiving space 150.

[0042] In one embodiment, the coupling 160 is disposed on the side of the second heat-conducting enclosure 120 opposite to the receiving space 150.

[0043] It is understandable that increasing the number of connectors 160 can enhance the bonding force between the two battery brackets 100. By simultaneously placing the connectors 160 on the first heat-conducting enclosure 110 and the second heat-conducting enclosure 120, the two stacked battery brackets 100 are subjected to uniform force, making them less likely to separate during movement and improving stability.

[0044] In some embodiments, such as Figure 2 As shown, the coupling 160 includes two first limiting posts 161 and a snap fastener 162.

[0045] The first limiting post 161 is strip-shaped and extends along the second direction D2. In the second direction D2, the end of the first limiting post 161 does not exceed the edge of the second heat-conducting enclosure 120 or the first heat-conducting enclosure 110.

[0046] Two first limiting posts 161 are spaced apart along a third direction D3, and a latch 162 is located on the side of the first limiting post 161 near the first battery storage position 152. In one embodiment, the end of the first limiting post 161 away from the latch 162 is chamfered to guide the inserted latch 162 when assembling multiple battery holders 100, thereby improving assembly efficiency.

[0047] In the second direction D2, the projection of the latch 162 is completely located between the two first limiting posts 161. For example... Figure 3 and Figure 5 As shown, when assembling multiple battery brackets 100, the buckle 162 of the lower battery bracket 100 can be inserted between the two first limiting posts 161 of the upper battery bracket 100.

[0048] In some embodiments, in the second direction D2, one end of the buckle 162 is connected to the first heat-conducting enclosure 110 or the second heat-conducting enclosure 120, and the other end protrudes from the first heat-conducting enclosure 110 or the second heat-conducting enclosure 120. The buckle 162 is provided with a buckle hole 1621, which is located on the part of the buckle 162 that protrudes from the first heat-conducting enclosure 110 or the second heat-conducting enclosure 120.

[0049] The coupling 160 also includes a protrusion 163, which is disposed between the two first limiting posts 161. In the second direction D2, the projection of the protrusion 163 is completely located within the snap hole 1621. Figure 3 and Figure 5 As shown, when assembling multiple battery brackets 100, the buckle 162 of the lower battery bracket 100 can be inserted between the two first limiting posts 161 of the upper battery bracket 100, and the buckle hole 1621 and the protrusion 163 of the buckle 162 are engaged and fixed.

[0050] The snap hole 1621 is a through hole, and its shape can be customized as needed. For example, in... Figure 5 In the design, the buckle hole 1621 is roughly rectangular in shape, and correspondingly, the protrusion 163 is also rectangular in shape. The cross-section of the buckle hole 1621 can also be set as triangular, D-shaped, circular, etc.

[0051] In some embodiments, the clip 162 is made of high-temperature resistant plastic or aluminum and is fixed by adhesive or welding.

[0052] In some embodiments, at least one of the first heat-conducting enclosure 110, the second heat-conducting enclosure 120 and the third heat-conducting enclosure 130 is provided with a flow guide hole 154, which communicates with the receiving space 150.

[0053] Thermally conductive adhesive is used to expel gas from the containment space 150, or to allow thermally conductive adhesive to penetrate into the containment space 150 and come into contact with the battery cell 200, thereby improving thermal conductivity.

[0054] The number of flow guide holes 154 can be set as needed. For example, the flow guide holes 154 can be multiple densely distributed small holes, such as elongated oval holes arranged along the length of the first heat-conducting enclosure 110, the second heat-conducting enclosure 120, or the third heat-conducting enclosure 130.

[0055] like Figure 1 and Figure 2 As shown, the first heat-conducting enclosure 110, the second heat-conducting enclosure 120 and the third heat-conducting enclosure 130 are all provided with flow guide holes 154 to improve heat conduction efficiency.

[0056] In some embodiments, such as Figure 1 and Figure 2 The battery holder 100 also includes a partition plate 170, which is disposed at the opening 151 of the receiving space 150 and connected to the thermally conductive partition plate 140. The partition plate 170 is used to insulate and separate the two tabs 210 in the same battery cell 200, and also to separate the tabs 210 of the battery cell 200 in the first battery storage position 152 and the tabs 210 of the battery cell 200 in the second battery storage position 153.

[0057] like Figure 2 As shown, a portion of the partition panel 170 faces the first battery storage location 152, and a portion of the partition panel 170 faces the second battery storage location 153. Both sides of the partition panel 170, arranged along the second direction D2, have extensions 171 protruding in a direction away from the partition panel 170. The partition panel 170 is elongated, and the extensions 171 are located in the middle of the partition panel 170, making the partition panel 170 cross-shaped.

[0058] like Figure 2 As shown, the extension 171, the partition plate 170, and the first heat-conducting plate 110 are connected to form a first tab storage position 172, and the extension 171, the partition plate 170, and the second heat-conducting plate 120 are connected to form a second tab storage position 173. The first tab storage position 172 and the second tab storage position 173 are used to place two tabs 210 of the same battery cell 200.

[0059] In the battery holder 100, there are two first tab storage positions 172, which are spaced apart along the second direction D2; there are two second tab storage positions 173, which are spaced apart along the second direction D2. The two first tab storage positions 172 are used to place tabs 210 of different cells 200. Similarly, the second tab storage positions 173 are used to place tabs 210 of different cells 200.

[0060] Continue reading Figure 2 The end of the partition plate 170 near the first heat-conducting partition plate 110 and the end of the partition plate 170 near the second heat-conducting partition plate 120 are reserved with a collection plate mounting hole 174, and positive and negative polarity markings of the battery cell 200 are provided around the collection plate mounting hole 174.

[0061] like Figure 3 and Figure 4 As shown, this application provides a battery module 1000, which includes a plurality of battery cells 200 and a plurality of battery brackets 100 according to any of the foregoing embodiments.

[0062] See also Figure 2 and Figure 5Each battery holder 100 has a first battery storage position 152 and a second battery storage position 153 respectively for placing a battery cell 200. Multiple battery holders 100 are stacked along the second direction D2, and adjacent batteries 100 are detachably connected.

[0063] like Figure 5 Between two adjacent battery brackets 100, the buckle 162 of the next battery bracket 100 passes between the two first limiting posts 161 of the previous battery bracket 100, and the buckle hole 1621 of the buckle 162 of the next battery bracket 100 engages with the protrusion 163 of the previous battery bracket 100, realizing a detachable connection between the two adjacent battery brackets 100. Based on this, multiple battery cells 200 are stacked and placed in corresponding battery storage positions, and multiple battery brackets 100 are stacked and connected into a stable whole. The front or back of each battery cell 200 is in contact with the heat-conducting partition 140 of the battery bracket 100, and the three outer peripheral surfaces of the battery cell 200 are in contact with the first heat-conducting enclosure 110, the second heat-conducting enclosure 120 and the third heat-conducting enclosure 130, respectively. Each battery cell 200 has four heat dissipation surfaces, which increases the heat dissipation area of ​​each battery cell 200 and improves the overall heat dissipation efficiency of the battery module 1000.

[0064] In some embodiments, the battery module 1000 also includes a plurality of cushioning pads 300.

[0065] like Figure 6 and Figure 7 As shown, the buffer pad 300 is located between the battery cell 200 in the second storage position of the previous battery holder 100 and the battery cell 200 in the first storage position of the next battery holder 100. The buffer pad 300 is made of cushioning foam made of polyethylene (PE), polyurethane (PU), or ethylene-vinyl acetate copolymer (EVA). The buffer pad 300 has good shock absorption performance, effectively absorbing and dispersing impact forces, thereby protecting the internal items from damage and effectively buffering the deformation caused by the heat expansion of the battery cell 200.

[0066] In some embodiments, an aluminum plate may be used, with thermally conductive adhesive coated on both sides of the aluminum plate instead of the buffer pad 300. The thermally conductive adhesive provides a buffering effect and also transfers heat to the aluminum plate, further increasing the heat dissipation area of ​​the cell 200 and improving the overall heat dissipation efficiency of the battery module 1000.

[0067] In some embodiments, the battery module 1000 also includes a plurality of insulating pads 400.

[0068] like Figure 6 and Figure 7As shown, the insulating pad 400 is located between the tab 210 of the cell 200 in the second storage position of the previous battery holder 100 and the tab 210 of the cell 200 in the first storage position of the next battery holder 100, to prevent short circuits from occurring when the tabs 210 of adjacent cells 200 come into contact.

[0069] In some embodiments, such as Figure 4 As shown, the battery module 1000 also includes a PCB acquisition board 500. The PCB acquisition board 500 is connected to the side of the partition plate 170 away from the receiving space 150 through the acquisition board mounting hole 174. The PCB acquisition board 500 is connected to the tab 210 of the battery cell 200.

[0070] In some embodiments, the battery module 1000 further includes a first end cover 600, a second end cover 700, and a fastening member 800. The first end cover 600 and the second end cover 700 are disposed opposite each other along a second direction D2, and a plurality of battery cells 200 and a plurality of battery brackets 100 are stacked between the first end cover 600 and the second end cover 700.

[0071] like Figure 4 The first end cover 600 and the second end cover 700 are also provided with a number of intersecting elongated protrusions to increase the heat dissipation area of ​​the first end cover 600 and the second end cover 700.

[0072] like Figure 2 The battery holder 100 is also provided with a second limiting post 180, and the first limiting post 161 is located on the side of the connector 160 along the third direction D3. When multiple battery holders 100 are stacked, the multiple second limiting posts 180 are spliced ​​to form a strip-shaped post extending along the second direction D2. Figure 5 As shown, on the outer side of the first heat-conducting enclosure 110, there are two strip pillars, which are spaced apart to form an alignment area 181. The edge of the first end cover 600 is provided with an alignment protrusion 610 formed by bending from the edge of the first end cover 600 in the second direction D2 at the position corresponding to the alignment area 181. When the first end cover 600 is installed above the multiple battery brackets 100, the alignment protrusion 610 is located in the alignment area 181 and limits the first end cover 600.

[0073] Similarly, a positioning protrusion 610 is also provided on the second end cover 700 at the position corresponding to the positioning area 181. When the second end cover 700 is installed under the multiple battery brackets 100, the positioning protrusion 610 is located in the positioning area 181 and limits the second end cover 700.

[0074] The fastening member 800 is fitted onto the outside of the first end cap 600 and the second end cap 700, and the fastening member 800 abuts against the first limiting post 161. For example... Figure 3 and Figure 4As shown, the battery module 1000 also includes a housing 910 and a cover 920. After the fastening member 800 binds and fixes the stacked structure of the first end cover 600, multiple battery cells 200, multiple battery brackets 100 and the second end cover 700, it is installed into the housing 910. Thermally conductive adhesive is injected into the housing 910. The heat generated by the battery cells 200 is transferred to the housing 910 through the battery brackets 100 and the thermally conductive adhesive.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A battery holder, characterized in that, The battery holder (100) includes: First heat-conducting enclosure (110); The second heat-conducting enclosure (120) is arranged parallel to the first heat-conducting enclosure (110) along the first direction (D1); The third heat-conducting enclosure (130) is connected to form an accommodating space (150) with an opening (151) on one side. The first heat-conducting enclosure (110), the second heat-conducting enclosure (120) and the third heat-conducting enclosure (130) are connected to form an accommodating space (150) with an opening (151) on one side. A heat-conducting partition (140) is disposed within the accommodating space (150). The first heat-conducting enclosure (110), the second heat-conducting enclosure (120), and the third heat-conducting enclosure (130) are respectively connected to the heat-conducting partition (140). The heat-conducting partition (140) divides the accommodating space (150) into a first battery storage position (152) and a second battery storage position (153) disposed along a second direction (D2), wherein the first direction (D1) is perpendicular to the second direction (D2).

2. The battery holder according to claim 1, characterized in that, The battery holder (100) also includes a plurality of couplings (160). The connecting member (160) is disposed on the side of the first heat-conducting enclosure (110) opposite to the receiving space (150). On the first heat-conducting enclosure (110), a plurality of the connecting members (160) are spaced apart along a third direction (D3), or... The connecting member (160) is located on the side of the second heat-conducting enclosure (120) opposite to the receiving space (150). On the second heat-conducting enclosure (120), a plurality of the joints (160) are spaced apart along the third direction (D3), wherein the first direction (D1) and the second direction (D2) are perpendicular to the third direction (D3).

3. The battery holder according to claim 2, characterized in that, The coupling (160) includes: Two first limiting posts (161) extend along the second direction (D2) and are spaced apart along the third direction (D3); The buckle (162) is located on the side of the first limiting post (161) near the first battery storage position (152). In the second direction (D2), the projection of the buckle (162) is completely located between the two first limiting posts (161).

4. The battery holder according to claim 3, characterized in that, In the second direction (D2), one end of the buckle (162) is connected to the first heat-conducting enclosure (110) or the second heat-conducting enclosure (120), and the other end protrudes from the first heat-conducting enclosure (110) or the second heat-conducting enclosure (120). The buckle (162) has a buckle hole (1621), which is located on the part of the buckle (162) that protrudes from the first heat-conducting enclosure (110) or the second heat-conducting enclosure (120). The connector (160) further includes a protrusion (163) disposed between the two first limiting posts (161), and in the second direction (D2), the projection of the protrusion (163) is completely located within the buckle hole (1621).

5. The battery holder according to claim 1, characterized in that, At least one of the first heat-conducting enclosure (110), the second heat-conducting enclosure (120) and the third heat-conducting enclosure (130) is provided with a flow guide hole (154), which is connected to the accommodating space (150).

6. The battery holder according to claim 1, characterized in that, The battery holder (100) also includes a partition plate (170), which is disposed at the opening (151) of the receiving space (150) and connected to the heat-conducting partition plate (140). A portion of the partition plate (170) faces the first battery storage position (152), and a portion of the partition plate (170) faces the second battery storage position (153). Both sides of the partition plate (170) along the second direction (D2) are provided with extensions (171) that protrude in a direction away from the partition plate (170). The extensions (171), the partition plate (170), and the first heat-conducting plate (110) are connected to form the first tab storage position (172). The extensions (171), the partition plate (170), and the second heat-conducting plate (120) are connected to form the second tab storage position (173).

7. A battery module, characterized in that, include: Multiple battery cells (200); The battery holders (100) according to any one of claims 1 to 6, wherein each battery holder (100) has a first battery storage position (152) and a second battery storage position (153) respectively holding one of the battery cells (200), the plurality of battery holders (100) are stacked along the second direction (D2), and the next battery holder (100) is detachably connected between two adjacent battery holders (100).

8. The battery module according to claim 7, characterized in that, The battery module (1000) also includes a plurality of buffer pads (300), which are located between the battery cell (200) in the second storage position of the previous battery bracket (100) and the battery cell (200) in the first storage position of the next battery bracket (100).

9. The battery module according to claim 7, characterized in that, The battery module (1000) also includes a plurality of insulating pads (400), which are located between the battery cell (200) tab (210) of the second storage position of the previous battery bracket (100) and the battery cell (200) tab (210) of the first storage position of the next battery bracket (100).

10. The battery module according to claim 7, characterized in that, The battery module (1000) further includes a first end cap (600), a second end cap (700), and a fastening member (800). The first end cap (600) and the second end cap (700) are arranged opposite to each other along the second direction (D2). The plurality of battery cells (200) and the plurality of battery brackets (100) are stacked between the first end cap (600) and the second end cap (700). The fastening element (800) is fitted onto the outside of the first end cap (600) and the second end cap (700).

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