Support beam for battery pack, battery pack and electric device

Abstract

This utility model discloses a support beam for a battery pack, a battery pack, and an electrical device. The support beam and the battery assembly of the battery pack are arranged opposite each other in a first direction. The support beam includes a support body and a sealing element. The support body has a heat-conducting area on at least one side in the first direction. The support body has a first channel inside and a first inlet communicating with the first channel. The sealing element surrounds at least a portion of the outer periphery of the heat-conducting area. The sealing element has a first state and a second state. In the second state, the thickness of the sealing element in the first direction is greater than the thickness of the sealing element in the first state. The first channel communicates with the sealing element and is used to deliver a filling medium towards the interior of the sealing element, so that the sealing element switches to the second state. The support beam for the battery pack of this utility model not only enables the support beam itself to have heat dissipation performance, but also reduces the difficulty of filling the filling medium inside the sealing element, so that the sealing element and the battery assembly can effectively seal the heat-conducting area, effectively ensuring the sealing effect of the sealing element.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a support beam for a battery pack, a battery pack, and an electrical device. Background Technology

[0002] In a battery pack, when a single battery cell experiences thermal runaway, the chemical substances inside the cell react rapidly and release a large amount of heat, which may cause thermal runaway in adjacent battery cells, ultimately leading to a fire or even an explosion of the entire battery pack.

[0003] To address these issues, insulating components or cooling systems are typically installed within the battery pack. However, existing insulating components and cooling systems suffer from complex structures, resulting in low battery pack assembly efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the first objective of this invention is to provide a support beam for a battery pack, which can absorb the heat from runaway battery cells, simplify the battery pack structure, improve battery pack assembly efficiency, and solve the technical problem of low battery pack assembly efficiency caused by the complex structure of insulating components or cooling systems in the prior art.

[0005] The second objective of this invention is to provide a battery pack having the aforementioned support beam.

[0006] The third objective of this utility model is to provide an electrical device having the aforementioned battery pack.

[0007] According to an embodiment of the present invention, a support beam for a battery pack is adapted to be disposed opposite to the battery assembly of the battery pack in a first direction. The support beam includes: a support body having a heat-conducting area on at least one side in the first direction, a first channel inside the support body, and a first inlet communicating with the first channel; and a seal surrounding at least a portion of the outer periphery of the heat-conducting area, the seal having a first state and a second state, wherein in the second state the thickness of the seal in the first direction is greater than in the first state the thickness of the seal in the first direction, the first channel communicating with the seal, and the first channel being used to deliver a filling medium toward the interior of the seal to switch the seal to the second state.

[0008] According to an embodiment of the present invention, a support beam for a battery pack has a heat-conducting area on at least one side of the support body in a first direction, and a sealing member is used to surround at least a portion of the outer periphery of the heat-conducting area. In a second state, the thickness of the sealing member in the first direction is greater than that in the first state. This facilitates the sealing of the heat-conducting area by the sealing member and the battery assembly in the second state, thereby enabling heat transfer between the battery assembly and the support beam. This allows the support beam itself to have heat dissipation performance, preventing the heat generated by the runaway battery assembly from spreading to adjacent normal battery assemblies. It also simplifies the structure of the battery pack and improves the assembly efficiency. At the same time, by using a first channel to fill the sealing member with a filling medium, the sealing performance of the sealing member can be improved. The first channel also reduces the difficulty of filling the filling medium inside the sealing member, enabling the sealing member and the battery assembly to seal the heat-conducting area and ensuring the sealing effect of the sealing member.

[0009] In some embodiments, at least one side of the support body is further provided with a mounting groove, the mounting groove surrounding at least a portion of the outer periphery of the heat-conducting area, and at least a portion of the seal is disposed within the mounting groove.

[0010] In some embodiments, the seal is hollow to form a receiving cavity, the seal is provided with a filling port communicating with the receiving cavity, and the support body is provided with a first outlet communicating with the first channel, the first outlet communicating with the filling port.

[0011] In some embodiments, the first outlet is located within the mounting slot and directly opposite the filling port.

[0012] In some embodiments, the mounting groove includes a first mounting groove and two second mounting grooves. The first mounting groove is located at the bottom of the heat-conducting area, and the two second mounting grooves are spaced apart at opposite ends of the first mounting groove. The first mounting groove and the second mounting grooves extend in different directions.

[0013] In some embodiments, the first outlet is located within the first mounting slot, and the first inlet is located at the top of the support body.

[0014] In some embodiments, the thermally conductive area is filled with thermally conductive adhesive.

[0015] In some embodiments, the support body has a second channel inside, and the support body has a second inlet and a second outlet that communicate with the second channel, with the second outlet communicating with the heat-conducting area.

[0016] In some embodiments, the second outlet is located near the bottom of the heat-conducting area, and the second inlet is located at the top of the support body.

[0017] In some embodiments, the support body is provided with weight-reducing holes.

[0018] A battery pack according to an embodiment of the present invention includes: a battery assembly; a support beam, wherein the support beam is the aforementioned support beam, and the heat-conducting area and the sealing element of the support beam are directly opposite the battery assembly.

[0019] According to the battery pack of this utility model embodiment, by adopting the aforementioned support beam, the runaway battery component can be directly cooled by the support beam. On the one hand, this simplifies the structure of the battery pack and improves the assembly efficiency of the battery pack. On the other hand, it can also prevent the heat generated by the runaway battery component from spreading to adjacent normal battery components to a certain extent, thereby reducing the temperature of the battery pack and improving the safety of the battery pack.

[0020] In some embodiments, the battery assembly is anti-aggregated with the seal.

[0021] In some embodiments, the battery assembly includes a plurality of battery cells arranged along a second direction, and the support beam is disposed at at least one end of the battery assembly in a first direction and directly opposite the plurality of battery cells, wherein the second direction intersects the first direction.

[0022] In some embodiments, the battery assembly is provided with the support beams at both opposite ends in the first direction.

[0023] In some embodiments, the battery assembly has multiple battery assemblies arranged along the first direction, and the support beam is disposed between two adjacent battery assemblies. The support beam has the heat-conducting area and the sealing element on opposite sides of the first direction.

[0024] The electrical equipment according to the embodiments of the present invention includes the aforementioned battery pack.

[0025] The electrical equipment according to the embodiments of this utility model can improve the safety of the electrical equipment to a certain extent by using the aforementioned battery pack.

[0026] Additional aspects and advantages of this invention will become apparent from the description which follows, or may be learned by practice of this invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic diagram of a battery pack according to some embodiments of the present invention.

[0029] Figure 2 for Figure 1 A magnified view of region I in the middle.

[0030] Figure 3 This is a schematic diagram of the support body of some embodiments of the present invention.

[0031] Figure 4 This is a schematic diagram of a support beam according to some embodiments of the present invention, wherein the seal does not contain a filling medium.

[0032] Figure 5 for Figure 4 Enlarged view of region II.

[0033] Figure 6 This is a schematic diagram of a support beam according to some embodiments of the present invention, wherein the sealing element contains a filling medium.

[0034] Figure label:

[0035] 2000, battery pack;

[0036] 1000, Support beam;

[0037] 100. Support the main body;

[0038] 110. Heat-conducting area;

[0039] 120. Mounting slot; 121. First mounting slot; 122. Second mounting slot;

[0040] 130. First passageway; 140. First entrance; 150. First exit;

[0041] 160. Second passageway; 170. Second entrance; 180. Second exit;

[0042] 190. Weight reduction hole;

[0043] 200. Seal; 210. Filler port;

[0044] 300. Filling medium;

[0045] 400. Thermal conductive adhesive;

[0046] 1100, Battery assembly; 1110, Battery cell. Detailed Implementation

[0047] The embodiments of this utility model are described in detail below. Examples of these 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 utility model, and should not be construed as limiting this utility model.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "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 are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0049] The following description, with reference to the accompanying drawings, describes a support beam 1000 for a battery pack 2000 according to an embodiment of the present invention.

[0050] Combination Figure 1 and Figure 2 As shown, the support beam 1000 is adapted to be disposed opposite to the battery assembly 1100 of the battery pack 2000 in a first direction. It should be noted that the first direction referred to here can be understood as... Figure 2 As shown in the X direction, the above-mentioned arrangement allows the support beam 1000 to support the battery assembly 1100, preventing the battery assembly 1100 from shaking or shifting when subjected to external impacts or vibrations, thereby ensuring the positional stability of the battery assembly 1100 to a certain extent and ensuring the working performance of the battery assembly 1100.

[0051] Combination Figures 1-6 As shown, the support beam 1000 according to an embodiment of the present utility model includes: a support body 100 and a sealing member 200.

[0052] Among them, combined Figure 3 and Figure 4 As shown, the support body 100 has a heat-conducting area 110 on at least one side in the first direction, a first channel 130 inside the support body 100, and a first inlet 140 communicating with the first channel 130 on the support body 100. Since the support beam 1000 is adapted to be positioned opposite to the battery assembly 1100 of the battery pack 2000, the heat-conducting area 110 ensures that the heat generated by the runaway battery assembly 1100 can be preferentially transferred to the support body 100 through the heat-conducting area 110, thereby preventing the heat generated by the runaway battery assembly 1100 from spreading to adjacent normal battery assemblies 1100 and ensuring the safety of the battery pack 2000.

[0053] Meanwhile, by providing a first inlet 140 on the support body 100 that connects to the first channel 130, the first inlet 140 can reduce the difficulty of filling the filling medium 300 into the first channel 130, so that the filling medium 300 can be filled from the first inlet 140 into the first channel 130.

[0054] It should be noted that the provision of a heat-conducting area 110 on at least one side of the support body 100 in the first direction means that the support body 100 is provided with a heat-conducting area 110 on one side of the first direction, or that the support body 100 is provided with heat-conducting areas 110 on both opposite sides of the first direction. This ensures that the heat generated by the runaway battery assembly 1100 can be preferentially transferred to the support body 100 through the heat-conducting area 110, thereby preventing the heat generated by the runaway battery assembly 1100 from spreading to the adjacent normal battery assembly 1100 and ensuring the safety of the battery pack 2000.

[0055] Combination Figure 3 and Figure 4 As shown, a seal 200 surrounds at least a portion of the outer periphery of the heat-conducting region 110. The seal 200 has a first state and a second state. In the second state, the thickness of the seal 200 in the first direction is greater than the thickness of the seal 200 in the first direction in the first state. A first channel 130 communicates with the seal 200 and is used to deliver a filling medium 300 toward the interior of the seal 200, so that the seal 200 switches to the second state. By surrounding at least a portion of the outer periphery of the heat-conducting region 110, the seal 200 and the battery assembly 1100 cooperate to seal the heat-conducting region 110, thereby facilitating heat transfer between the battery assembly 1100 and the support beam 1000 through the heat-conducting region 110. This allows the support beam 1000 to have heat dissipation properties, preventing the heat generated by the runaway battery assembly 1100 from spreading to adjacent normal battery assemblies and simplifying the structure of the battery pack 2000, thus improving the assembly efficiency of the battery pack 2000.

[0056] Meanwhile, by setting the first channel 130 to connect the seal 200, it is also convenient to use the first channel 130 to deliver the filling medium 300 into the seal 200. The first channel 130 can reduce the difficulty of filling the filling medium 300 inside the seal 200, so that the seal 200 and the battery assembly 1100 can cooperate to seal the heat-conducting area 110 and ensure the sealing effect of the seal 200.

[0057] It should be noted that because the thickness of the seal 200 in the first direction is greater in the second state than in the first state, the seal 200 can be in a flat state in the first state and a bulging state in the second state. This allows the seal 200 to switch to a flat state when the support beam 1000 is installed, avoiding interference between the seal 200 and the battery assembly 1100, thus reducing the installation difficulty of the support beam 1000. When the seal 200 needs to seal the heat-conducting area 110, the filling medium 300 can be delivered into the seal 200 through the first channel 130, switching the seal 200 from a flat state to a bulging state. This allows the bulging seal 200 and the battery assembly 1100 to cooperate in sealing the heat-conducting area 110, ensuring the working performance of the seal 200.

[0058] In summary, the support beam 1000 of this application not only has the function of supporting the battery assembly 1100, but also has the function of heat dissipation. By adopting the support beam 1000 of this application, it is beneficial to simplify the structure of the battery pack 2000 and improve the assembly efficiency of the battery pack 2000.

[0059] In a specific example, the high thermal conductivity and high specific heat capacity of the support body 100 can be used to quickly absorb and disperse the heat released by the thermal runaway battery assembly 1100, thereby preventing the heat generated by the runaway battery assembly 1100 from spreading to the adjacent normal battery assembly 1100 and thus ensuring the safety of the battery pack 2000.

[0060] As can be seen from the above structure, the support beam 1000 for the battery pack 2000 in this embodiment of the present invention has heat dissipation performance by setting the heat conduction area 110, so as to ensure that the heat generated by the runaway battery assembly 1100 is preferentially transferred to the support body 100, thereby preventing the heat generated by the runaway battery assembly 1100 from spreading to the adjacent normal battery assembly 1100 and causing it to spread, thereby ensuring the safety of the battery pack 2000.

[0061] Meanwhile, a first channel 130 is provided to deliver filling medium 300 into the seal 200. The first channel 130 can reduce the difficulty of arranging the filling medium 300 in the seal 200, thereby ensuring the sealing effect of the seal 200, so that the seal 200 and the battery assembly 1100 can cooperate to seal the heat-conducting area 110.

[0062] It is understandable that, compared with the prior art, the support beam 1000 of this application not only has supporting performance, but also heat dissipation effect, and can use the first channel 130 to deliver the filling medium 300 into the seal 200. The first channel 130 can reduce the difficulty of filling the sealing medium 300 into the seal 200, so that the seal 200 and the battery assembly 1100 can cooperate to seal the heat-conducting area 110, effectively ensuring the sealing effect of the seal 200.

[0063] In the description of this utility model, features defined as "first" and "second" may explicitly or implicitly include one or more of the features, used to distinguish and describe features, without any order or importance.

[0064] In some embodiments, combined with Figure 3 and Figure 4 As shown, at least one side of the support body 100 is also provided with a mounting groove 120, which surrounds at least a portion of the outer periphery of the heat-conducting area 110, and at least a portion of the seal 200 is disposed within the mounting groove 120. This achieves the goal of surrounding at least a portion of the outer periphery of the heat-conducting area 110 with the seal 200, ensuring the performance of the seal 200, and reducing the installation difficulty of the seal 200.

[0065] Meanwhile, the mounting groove 120 not only provides installation space for the seal 200 to fix the seal 200 and improve the connection strength between the seal 200 and the support body 100, thereby improving the stability of the seal 200 and ensuring the working performance of the seal 200, but also accommodates part of the seal 200 to avoid the seal 200 occupying too much space outside the support beam 1000, thereby avoiding interference between the seal 200 and the battery assembly 1100 during the assembly of the battery pack 2000, thus reducing the assembly difficulty of the battery pack 2000.

[0066] It should be noted that the fact that the support body 100 has a mounting groove 120 on at least one side means that the support body 100 has a mounting groove 120 on one side, or that the support body 100 has mounting grooves 120 on opposite sides.

[0067] With the above settings, in a specific example, when it is necessary to use the seal 200 and the battery assembly 1100 to seal at least a portion of the heat-conducting area 110, the seal 200 can first be placed in the mounting groove 120. At this time, the seal 200 can be formed in a flat state to prevent the seal 200 from protruding from the support body 100 (in conjunction with...). Figure 4 and Figure 5As shown), this avoids interference between the seal 200 and the battery assembly 1100 during assembly. After the battery assembly 1100 and the support beam 1000 are assembled, the first channel 130 pre-set inside the support body 100 is used to deliver the filling medium 300 into the seal 200, causing the seal 200 to bulge (as shown). Figure 6 As shown), the seal 200 is formed in a bulging state, which allows the seal 200 to fit tightly against the side of the battery assembly 1100 and the mounting groove 120, so as to achieve the purpose of sealing the heat-conducting area 110 by using the seal 200 and the battery assembly 1100 together.

[0068] In some embodiments, the seal 200 is a silicone sleeve or a sealing bag, etc. This facilitates the delivery of the filling medium 300 into the seal 200 and enables the seal 200 to have a certain structural strength, thereby improving the sealing performance of the seal 200.

[0069] In some embodiments, the seal 200 is bonded to the mounting groove 120. This achieves a fixed connection between the seal 200 and the support body 100, facilitating the support body 100 to support the seal 200, improving the positional stability of the seal 200, and thus ensuring the sealing effect of the seal 200.

[0070] In some embodiments, the first channel 130 includes multiple channels. The cooperation of multiple first channels 130 can, to a certain extent, increase the filling speed of the filling medium 300 in the seal 200, so that the seal 200 can be filled with the filling medium 300 more quickly.

[0071] In some embodiments, a plurality of first channels 130 are arranged at intervals along the length direction of the support body 100. Here, the length direction can be understood as... Figure 3 As shown in the Y direction, the above-mentioned settings facilitate the delivery of the filling medium 300 to different positions along the length of the seal 200, improving the filling effect and ensuring that the filling medium 300 is evenly distributed within the seal 200, which helps to guarantee the sealing performance of the seal 200.

[0072] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0073] In some embodiments, the support body 100 can be formed by CNC (Computer Numerical Control) or aluminum extrusion, which can improve the structural strength of the support body 100 to a certain extent and reduce the forming difficulty of the first channel 130 and the mounting groove 120.

[0074] In some embodiments, the filling medium 300 is a common adhesive or a thermally conductive adhesive, etc. By filling the seal 200 with the filling medium 300, the seal 200 can be switched to a second state, thereby ensuring the sealing performance of the seal 200.

[0075] It should be noted that when the filling medium 300 is a thermally conductive adhesive, filling the sealant 200 with the thermally conductive adhesive not only ensures the sealing performance of the sealant 200, but also makes the sealant 200 thermally conductive, so as to increase the thermally conductive area between the battery assembly 1100 and the support beam 1000, thereby improving the heat transfer efficiency, improving the heat dissipation effect of the support beam 1000, and ensuring the safety of the battery pack 2000.

[0076] With the above configuration, the seal 200 can absorb the heat of the runaway battery assembly 1100 through the thermally conductive adhesive and transfer it to the support body 100, so as to ensure that the heat generated by the runaway battery assembly 1100 is preferentially transferred to the support body 100, thereby preventing the heat generated by the runaway battery assembly 1100 from spreading to the adjacent normal battery assembly 1100 and causing it to spread, thus ensuring the safety of the battery pack 2000.

[0077] It should be noted that, compared to using foam to fill the seal 200, this application uses thermally conductive adhesive to fill the seal 200. Since the thermally conductive adhesive is a fluid, when filling the seal 200, the filling medium 300 can flow smoothly into the seal 200 and fill the tiny bumps, scratches or pores (even at the nanometer level) inside the seal 200, so that the seal 200 can effectively fit tightly with the mounting groove 120 and the battery assembly 1100, thereby ensuring the sealing effect of the seal 200.

[0078] Optionally, the thermally conductive adhesive may be a silicone-based thermally conductive adhesive, an epoxy-based thermally conductive adhesive, or a polyurethane thermally conductive adhesive, etc., to ensure that the filling medium 300 has a certain thermal conductivity, which is beneficial for transferring heat to the support body 100.

[0079] Of course, in some other embodiments, the filling medium 300 can also be formed as a gas, that is, by filling the seal 200 with gas, the seal 200, the battery assembly 1100 and the mounting groove 120 can be tightly fitted together, thereby ensuring the sealing effect of the seal 200.

[0080] In some embodiments, combined with Figure 1 , Figure 2 and Figure 3 As shown, the first inlet 140 is located on the top of the support body 100, which facilitates the delivery of the filling medium 300 to the seal 200 through the first inlet 140, thereby reducing the difficulty of delivering the filling medium 300.

[0081] In some embodiments, combined with Figure 3 , Figure 4 and Figure 5 As shown, the seal 200 has a hollow interior forming a receiving cavity (not shown in the figure). The seal 200 has a filling port 210 communicating with the receiving cavity, and the support body 100 has a first outlet 150 communicating with the first channel 130. The first outlet 150 communicates with the filling port 210. This achieves a connection between the first channel 130 and the receiving cavity, allowing the filling medium 300 to flow from the first channel 130 into the receiving cavity, thus ensuring that the filling medium 300 can completely fill the receiving cavity of the seal 200 and guarantee the sealing effect of the seal 200.

[0082] In some embodiments, combined with Figure 3 , Figure 4 and Figure 5 As shown, the first outlet 150 is located within the mounting groove 120 and directly opposite the filling port 210. This facilitates the connection and communication between the first outlet 150 and the filling port 210, allowing the filling medium 300 to be delivered into the seal 200 via the first outlet 150. This ensures the filling medium 300 flows smoothly from the first outlet 150 of the first channel 130 into the filling port 210, thus filling the receiving cavity of the seal 200 completely and guaranteeing the sealing effect of the seal 200.

[0083] In some embodiments, such as Figure 3 As shown, the mounting groove 120 includes a first mounting groove 121 and two second mounting grooves 122. The first mounting groove 121 is located at the bottom of the heat-conducting region 110, and the two second mounting grooves 122 are spaced apart at opposite ends of the first mounting groove 121. The first mounting groove 121 and the second mounting groove 122 extend in different directions. This arrangement allows the mounting groove 120 to surround at least a portion of the outer periphery of the heat-conducting region 110, thereby enabling the sealing element 200 to be positioned on at least a portion of the outer periphery of the heat-conducting region 110, achieving the purpose of sealing the heat-conducting region 110 by cooperating with the sealing element 200 and the battery assembly 1100.

[0084] It should be noted that, through the arrangement of the first mounting groove 121 and the two second mounting grooves 122, the mounting groove 120 is U-shaped, and the structure of the sealing element 200 is also U-shaped. In this way, when the sealing element 200 is arranged around at least part of the outer periphery of the heat-conducting area 110, the sealing element 200 can be arranged around the bottom of the heat-conducting area 110 and the opposite ends of the bottom, thereby improving the sealing effect of the sealing element 200 on the heat-conducting area 110.

[0085] In some embodiments, such as Figure 3As shown, the first outlet 150 is located within the first mounting groove 121. Since the first mounting groove 121 is located at the bottom of the heat-conducting area 110, the above arrangement allows the first outlet 150 to be positioned close to the bottom of the seal 200. The filling medium 300 is filled from the top first inlet 140 and flows out from the first outlet 150, which facilitates the filling of the filling medium 300 from bottom to top, avoiding local air entrapment that could cause poor filling of the filling medium 300, thereby improving the sealing performance of the seal 200.

[0086] In some embodiments, combined with Figure 3 and Figure 6 As shown, the thermally conductive area 110 is filled with thermally conductive adhesive 400. The thermally conductive adhesive 400 enhances the thermal conductivity between the battery assembly 1100 and the support body 100, ensuring that the heat generated by the runaway battery assembly 1100 is absorbed and dissipated through the thermally conductive adhesive 400. This allows the heat generated by the battery assembly 1100 to preferentially transfer to the support body 100 rather than diffuse to adjacent normal battery assemblies 1100, thereby preventing the heat generated by the runaway battery assembly 1100 from spreading to adjacent normal battery assemblies 1100 and ensuring the safety of the battery pack 2000.

[0087] At the same time, the adhesive force of the thermally conductive adhesive 400 can be used to enhance the connection strength between the battery assembly 1100 and the support body 100, thereby increasing the mechanical strength of the battery pack 2000, improving the vibration and impact resistance of the battery pack 2000, and thus enhancing the mechanical reliability of the battery pack 2000 to a certain extent.

[0088] In addition, the thermally conductive adhesive 400 is a fluid. When filling the thermally conductive region 110, the thermally conductive adhesive 400 flows and can fill the tiny bumps, scratches or pores (even nanoscale) in the thermally conductive region 110, so that the battery assembly 1100 and the support body 100 can be tightly connected together. This makes it easier to use the thermally conductive adhesive 400 to better conduct heat from the battery assembly 1100 and transfer it to the support body 100.

[0089] In some embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, the support body 100 has a second channel 160 inside, and a second inlet 170 and a second outlet 180 connected to the second channel 160 are provided on the support body 100. The second outlet 180 is connected to the heat-conducting area 110. This facilitates the filling of the heat-conducting adhesive 400 towards the heat-conducting area 110 and reduces the difficulty of filling the heat-conducting adhesive 400.

[0090] With the above settings, in a specific example, after the seal 200 bulges with the filling medium 300 and fits tightly against the side of the battery assembly 1100 and the mounting groove 120, the thermally conductive adhesive 400 is filled from the second inlet 170 to the second channel 160, and the thermally conductive adhesive 400 flows out from the second outlet 180 and fills the thermally conductive area 110 until the thermally conductive adhesive 400 fills the entire thermally conductive area 110, so as to enhance the contact between the support body 100 and the side of the battery assembly 1100 and the effect of heat conduction.

[0091] In some embodiments, the second channel 160 includes a plurality of channels. The combination of multiple second channels 160 can, to some extent, increase the speed at which the thermally conductive region 110 is filled with thermally conductive adhesive 400.

[0092] In some embodiments, a plurality of second channels 160 are arranged at intervals along the length direction of the support body 100. Here, the length direction can be understood as... Figure 3 As shown in the Y direction, the above settings facilitate the delivery of thermally conductive adhesive 400 to different positions along the length of the thermally conductive area 110, improving the filling effect and ensuring that the thermally conductive adhesive 400 is evenly distributed within the thermally conductive area 110, which helps to guarantee the thermal conductivity of the thermally conductive area 110.

[0093] In some embodiments, combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the second outlet 180 is located near the bottom of the heat-conducting area 110. This allows the thermally conductive adhesive 400 to be filled from the bottom of the heat-conducting area 110 upwards, avoiding poor filling of the thermally conductive adhesive 400 due to local air entrapment in the heat-conducting area 110. This improves the filling effect of the thermally conductive adhesive 400, ensuring that when the runaway battery assembly 1100 generates heat, the heat generated by the runaway battery assembly 1100 can be transferred to the support body 100 to the maximum extent. This, in turn, ensures the heat dissipation effect of the support body 100, thereby preventing adjacent normal battery assemblies 1100 from being affected by the runaway battery assembly 1100, and to a certain extent ensuring the safety of the battery pack 2000.

[0094] In some embodiments, combined with Figure 1 , Figure 2 and Figure 3 As shown, the second inlet 170 is located on the top of the support body 100, which facilitates the delivery of the second thermally conductive adhesive 400 to the thermally conductive area 110 through the second inlet 170, thereby reducing the difficulty of delivering the second thermally conductive adhesive 400.

[0095] In summary, the support beam 1000 of this application has a simple structure and low cost, and can realize automatic gluing of the first channel 130 and the second channel 160, reducing the production difficulty of the battery pack 2000 production line, and also making the assembly efficiency of the battery pack 2000 higher.

[0096] In some embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, the support body 100 is provided with weight reduction holes 190. By opening weight reduction holes 190 on the support body 100, the stress on the support body 100 can be distributed, and the amount of material used in the support body 100 can be reduced without significantly weakening the structural strength of the support body 100, thereby reducing the overall weight of the battery pack 2000, which meets the lightweight design requirements of the battery pack 2000.

[0097] In some embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, there are multiple weight-reduction holes 190, which are spaced apart on the support body 100. The multiple weight-reduction holes 190 work together to reduce the amount of material used in the support body 100, thereby reducing the overall weight of the battery pack 2000 and meeting the lightweight design requirements of the battery pack 2000.

[0098] It should be noted that, compared to opening a single large-sized weight-reducing hole 190 on the support body 100, this application can disperse stress and avoid stress concentration by setting multiple weight-reducing holes 190 at intervals on the support body 100, thereby ensuring the structural reliability of the support body 100 and preventing the support body 100 from cracking under conditions such as vibration and impact loads, and to a certain extent ensuring the performance of the support body 100.

[0099] The battery pack 2000 of this utility model is described below with reference to the accompanying drawings.

[0100] like Figure 1 As shown, a battery pack 2000 according to an embodiment of the present utility model includes: a battery assembly 1100 and a support beam 1000.

[0101] Among them, the support beam 1000 is the aforementioned support beam 1000, and the specific structure of the support beam 1000 will not be described in detail here.

[0102] Combination Figures 1-6As shown, the heat-conducting area 110 and the seal 200 of the support beam 1000 are directly opposite the battery pack 1100. This is to facilitate the transfer of heat from the runaway battery pack 1100 to the support body 100 via the heat-conducting area 110, and to facilitate heat dissipation via the support body 100, thereby preventing the battery pack 2000 from catching fire or exploding to a certain extent.

[0103] According to the embodiment of the present utility model, the battery pack 2000, by adopting the aforementioned support beam 1000, can directly dissipate heat from the runaway battery assembly 1100. On the one hand, this simplifies the structure of the battery pack 2000 and improves the assembly efficiency of the battery pack 2000. On the other hand, it can also dissipate heat from the runaway battery assembly 1100, and to a certain extent prevent the heat generated by the runaway battery assembly 1100 from spreading to the adjacent normal battery assembly 1100, thereby reducing the temperature of the battery pack 2000 and improving the safety of the battery pack 2000.

[0104] In some embodiments, combined with Figure 1 and Figure 2 As shown, the battery assembly 1100 and the seal 200 are in a stop-fitting arrangement. At this time, the gap between the battery assembly 1100 and the support body 100 can be filled by the seal 200, achieving the purpose of sealing the heat-conducting area 110.

[0105] It should be noted that when thermally conductive adhesive 400 is provided in the thermally conductive area 110, by engaging the battery assembly 1100 with the seal 200, the thermally conductive adhesive 400 can be prevented from flowing out from the gap between the battery assembly 1100 and the seal 200. This avoids poor filling between the battery assembly 1100 and the support body 100 or excessive use of thermally conductive adhesive 400, which would lead to a significant increase in the weight of the battery pack 2000, thus ensuring the working performance of the battery pack 2000.

[0106] In some embodiments, combined with Figure 1 and Figure 2 As shown, the battery assembly 1100 includes a plurality of battery cells 1110, which are arranged along a second direction. A support beam 1000 is disposed at at least one end of the battery assembly 1100 in the first direction and directly opposite the plurality of battery cells 1110. The second direction intersects the first direction. It should be noted that the second direction referred to here can be understood as... Figure 2 As shown in the Y direction, multiple battery cells 1110 can increase the capacity of battery assembly 1100 to a certain extent, thereby increasing the capacity of battery pack 2000.

[0107] Meanwhile, by placing the support beam 1000 at at least one end of the battery assembly 1100 in the first direction and facing the multiple battery cells 1110, the support beam 1000 can stably support the multiple battery cells 1110, preventing the multiple battery cells 1110 from shaking or shifting and ensuring the working performance of the multiple battery cells 1110. On the other hand, the support beam 1000 can simultaneously dissipate heat from the multiple battery cells 1110, ensuring the working performance of the battery cells 1110 and preventing safety accidents such as fire or even explosion of the battery pack 2000.

[0108] In some embodiments, such as Figure 1 As shown, the battery assembly 1100 has support beams 1000 at both ends of opposite sides in the first direction. This allows the two support beams 1000 to simultaneously support and dissipate heat from the same battery assembly 1100, thereby improving the performance of the battery pack 2000.

[0109] In some embodiments, combined with Figure 1 , Figure 2 and Figure 3 As shown, there are multiple battery modules 1100 arranged along a first direction. A support beam 1000 is disposed between two adjacent battery modules 1100. The support beam 1000 has heat-conducting areas 110 and sealing elements 200 on both sides of opposite sides in the first direction. This arrangement allows one support beam 1000 to simultaneously support and dissipate heat from multiple battery modules 1100, reducing the number of support beams required. This simplifies the structure of the battery pack 2000, improves its heat dissipation capacity and structural stability, and ultimately increases its mechanical reliability.

[0110] The following describes the electrical equipment according to an embodiment of the present invention.

[0111] The electrical equipment according to an embodiment of the present invention includes a battery pack 2000.

[0112] Among them, battery pack 2000 is the aforementioned battery pack 2000, and the specific structure of battery pack 2000 will not be described in detail here.

[0113] According to the embodiments of the present invention, by adopting the aforementioned battery pack 2000, the working performance of the electrical equipment can be guaranteed.

[0114] It should be noted that the electrical equipment mentioned here can include, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc.

[0115] Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys; spacecraft can include airplanes, rockets, space shuttles, and spacecraft; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0116] In some embodiments, the electrical equipment is a vehicle, which may be a pure electric vehicle or a hybrid vehicle.

[0117] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0118] Figure 3 The above illustration shows six weight-reducing holes 190 for illustrative purposes. However, after reading the above technical solution, those skilled in the art will obviously understand that applying this solution to one, two, three, or other weight-reducing holes 190 would also fall within the protection scope of this utility model.

[0119] The specific structures of the support beam 1000 for the battery pack 2000, the battery pack 2000, and other components of the electrical equipment such as the battery cell 1110 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0120] In this specification, the terms "embodiment," "example," 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 the present invention. 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.

[0121] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A support beam for a battery pack, characterized by, The support beam is adapted to be disposed opposite to the battery assembly (1100) of the battery pack in a first direction, and the support beam includes: A support body (100) is provided with a heat-conducting area (110) on at least one side in the first direction, and a first channel (130) is provided inside the support body (100), and a first inlet (140) is provided on the support body (100) to communicate with the first channel (130); A seal (200) surrounds at least a portion of the outer periphery of the heat-conducting region (110), the seal (200) having a first state and a second state, wherein in the second state the thickness of the seal (200) in the first direction is greater than the thickness of the seal (200) in the first direction in the first state, and a first channel (130) communicating with the seal (200) for conveying a filling medium (300) toward the interior of the seal (200) to switch the seal (200) to the second state.

2. The support beam for a battery pack of claim 1, wherein, The support body (100) is provided with a mounting groove (120) on at least one side, the mounting groove (120) surrounding at least a portion of the outer periphery of the heat-conducting area (110), and at least a portion of the seal (200) is provided within the mounting groove (120).

3. The support beam for a battery pack of claim 2, wherein, The sealing element (200) has a hollow interior forming a receiving cavity. The sealing element (200) is provided with a filling port (210) that communicates with the receiving cavity. The support body (100) is provided with a first outlet (150) that communicates with the first channel (130). The first outlet (150) communicates with the filling port (210).

4. The support beam for a battery pack of claim 3, wherein, The first outlet (150) is located in the mounting groove (120) and directly opposite the filling port (210).

5. The support beam for a battery pack of claim 4, wherein, The mounting groove (120) includes a first mounting groove (121) and two second mounting grooves (122). The first mounting groove (121) is located at the bottom of the heat-conducting area (110). The two second mounting grooves (122) are spaced apart at opposite ends of the first mounting groove (121). The first mounting groove (121) and the second mounting grooves (122) have different extending directions.

6. The support beam for a battery pack of claim 5, wherein, The first outlet (150) is located in the first mounting groove (121), and the first inlet (140) is located on the top of the support body (100).

7. The support beam for a battery pack of any one of claims 1-6, wherein, The thermally conductive area (110) is filled with thermally conductive adhesive (400).

8. The support beam for a battery pack of claim 7, wherein, The support body (100) has a second channel (160) inside, and the support body (100) has a second inlet (170) and a second outlet (180) that connect to the second channel (160). The second outlet (180) connects to the heat-conducting area (110).

9. The support beam for a battery pack of claim 8, wherein, The second outlet (180) is located near the bottom of the heat-conducting area (110), and the second inlet (170) is located at the top of the support body (100).

10. The support beam for a battery pack of claim 1, wherein, The support body (100) is provided with weight reduction holes (190).

11. A battery pack, characterized by include: Battery assembly (1100); A support beam, wherein the support beam is the support beam according to any one of claims 1-10, and the heat-conducting area (110) and the seal (200) of the support beam are opposite to the battery assembly (1100).

12. The battery pack of claim 11, wherein, The battery assembly (1100) and the seal (200) are in a stop-and-go engagement.

13. The battery pack of claim 11, wherein, The battery assembly (1100) includes a plurality of battery cells (1110) arranged along a second direction. The support beam is located at at least one end of the battery assembly (1100) in the first direction and is directly opposite the plurality of battery cells (1110). The second direction intersects the first direction.

14. The battery pack of claim 13, wherein, The battery assembly (1100) has the support beams at both ends of opposite sides in the first direction.

15. The battery pack of claim 13, wherein, The battery assembly (1100) has multiple components, which are arranged along the first direction. The support beam is disposed between two adjacent battery assemblies (1100). The support beam is provided with the heat-conducting area (110) and the sealing element (200) on opposite sides of the first direction.

16. An electrical device, characterized by Includes the battery pack according to any one of claims 11-15.

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