Hot riveting fixing structure for low-thickness CCS assembly cover plate

Abstract

The invention provides a hot riveting fixing structure for a low-thickness CCS assembly cover plate. The hot riveting fixing structure for the low-thickness CCS assembly cover plate comprises a support, the cover plate, a plurality of busbars and a plurality of wire harnesses, the support is provided with a wire outlet end, the multiple busbars are sequentially arranged in the length direction of the support, each busbar is connected with at least one wire harness, the first end of each wire harness is connected with the corresponding busbar, and the second end of each wire harness is connected with the corresponding busbar in the length direction of the support. The second ends of the wire harnesses at least extend to the wire outlet end, the cover plate at least covers the wire outlet end, and the cover plate abuts against the wire harnesses so that the multiple wire harnesses can be flatly laid at the wire outlet end. According to the hot riveting fixing structure for the low-thickness CCS assembly cover plate, the wire harnesses are kept in a tiled state, the multiple wire harnesses are prevented from being stacked together, the thickness or height of the wire harnesses at the wire outlet end can be effectively reduced, the thickness of the wire outlet end of the support is further reduced, the overall thickness of the CCS assembly can also be reduced along with the reduction, and the production efficiency of the CCS assembly is improved. And the lightweight design of the CCS assembly is facilitated.

Description

Technical Field

[0001] This application relates to the field of battery component technology, specifically to a hot riveting fixing structure for a cover plate of a low-thickness CCS module. Background Technology

[0002] In the field of lithium-ion battery module manufacturing, the CCS (Cell Contacting System) is a core component, undertaking key functions such as electrical connection of individual battery cells, acquisition of temperature and voltage signals, and current transmission at the module level. Its structure typically consists of an insulating support, busbars (aluminum or copper), and acquisition harnesses (FPC or FFC cables).

[0003] There are usually multiple busbars, and each busbar needs to be connected to at least one wire harness. The wire harnesses connected to different busbars are eventually led out from the outlet of the bracket and connected to other components.

[0004] In related technologies, at the cable outlet of the bracket, all wire harnesses are bundled together with components such as cable ties or tape. The total diameter or total height of all wire harnesses bundled together is large, resulting in a thicker cable outlet of the bracket, which in turn leads to a thicker CCS assembly. Summary of the Invention

[0005] Embodiments of this application provide a heat-riveting structure for a cover plate of a low-thickness CCS assembly.

[0006] In a first aspect, embodiments of this application provide a heat-riveting fixing structure for a cover plate of a low-thickness CCS module, comprising:

[0007] The bracket has a cable outlet. Multiple busbars are arranged sequentially along the length of the bracket; Multiple wire harnesses, each of the busbars is connected to at least one wire harness, the first end of the wire harness is connected to the busbar, wherein, along the length of the bracket, the second end of the wire harness extends at least to the outlet end; A cover plate is provided at least over the outlet end, and the cover plate abuts against the wire harness so that the plurality of wire harnesses are laid flat on the outlet end.

[0008] In one embodiment, the heat-riveting fixing structure for the cover plate of the low-thickness CCS component further includes an adhesive portion, at least a portion of which is located at the wire outlet end. The adhesive portion connects the wire harness and the bracket to fix the wire harness.

[0009] In one embodiment, the adhesive portion is connected to the cover plate; and / or, The adhesive portion includes an adhesive portion, which is applied to the lead-out end by dispensing adhesive; and / or... A sol space is formed between the cover plate and the wire harness, and the adhesive part includes an adhesive part that fills the sol space.

[0010] In one embodiment, the bracket has a wire passage, the wire harness is at least partially disposed in the wire passage, and the cover plate extends along the length of the bracket and covers the wire passage.

[0011] In one embodiment, along the length of the bracket, the adhesive portion extends away from the outlet end, and the adhesive portion is simultaneously connected to the wall of the cable passage, the cable harness, and the cover plate.

[0012] In one embodiment, the distance between the cover plate and the wire harness along the radial direction of the wire harness is less than the diameter of the wire harness; and / or, Along the radial direction of the wire harness, the distance between the cover plate and the outlet end is L, and the diameter of the wire harness is R, where R≤L<2R.

[0013] In one embodiment, the cover plate includes a cover plate body and a bent portion, the cover plate body is disposed on the outlet end and abuts against the wire harness, and the bent portion is connected to the cover plate body; The bent portion extends along the width direction of the busbar and is fixedly connected to the bracket.

[0014] Secondly, embodiments of this application provide a battery module including the aforementioned hot riveting fixing structure for a low-thickness CCS module cover plate.

[0015] Thirdly, embodiments of this application provide a battery pack including the battery module described above.

[0016] Fourthly, embodiments of this application provide an electrical device including the battery pack described above.

[0017] The beneficial effects of the embodiments of this application are as follows: In the embodiments of this application, multiple wire harnesses are laid flat at the outlet end, and the cover plate abuts against the wire harnesses. The cover plate can press and fix the wire harnesses, ensuring the installation stability of the wire harnesses and keeping them in a flat state, preventing multiple wire harnesses from being stacked together. This can effectively reduce the thickness or height of the wire harnesses at the outlet end, thereby reducing the thickness of the bracket at the outlet end. The overall thickness of the CCS assembly can also be reduced, which is beneficial to the lightweight design of the CCS assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall structural diagram of a heat-riveting fixing structure for a low-thickness CCS component cover plate provided in an exemplary embodiment of this disclosure.

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Top view of the hot riveting fixing structure used for the cover plate of low-thickness CCS components; Figure 4 yes Figure 3 Enlarged view of point B in the middle; Figure 5 yes Figure 1 A schematic diagram of the structure of the middle cover plate, wherein the viewpoint is the viewpoint from the first end to the second end; Figure 6 This is an overall structural schematic diagram of a heat-riveting fixing structure for a low-thickness CCS component cover plate provided in another exemplary embodiment of this disclosure. Figure 7 yes Figure 6 Enlarged view of point C in the middle; Figure 8 This is an overall structural diagram of a heat-riveting fixing structure for a low-thickness CCS component cover provided in an exemplary embodiment of this disclosure, wherein multiple wire harnesses are in a flat state. Figure 9 yes Figure 8 Enlarged view at point D; Figure 10 This is an overall structural diagram of a heat-riveting fixing structure for a low-thickness CCS component cover provided in another exemplary embodiment of this disclosure, wherein multiple wire harnesses are laid flat. Figure 11 yes Figure 10 Enlarged view of point E in the middle. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0022] The following is combined Figure 1 and Figure 11 This application describes a heat-riveting structure for a cover plate of a low-thickness CCS assembly.

[0023] According to the embodiments of the first aspect of this application, such as Figure 8 and Figure 9 As shown, the heat-riveting fixing structure for the cover plate of a low-thickness CCS module includes a bracket 200, a cover plate 600, multiple busbars 500, and multiple wire harnesses 310. The bracket 200 has a wire outlet end 270. The multiple busbars 500 are arranged sequentially along the length direction of the bracket 200. Each busbar 500 is connected to at least one wire harness 310. The first end of the wire harness 310 is connected to the busbar 500. Along the length direction of the bracket 200, the second end of the wire harness 310 extends at least to the wire outlet end 270. The cover plate 600 covers at least the wire outlet end 270 and abuts against the wire harnesses 310 so that the multiple wire harnesses 310 are laid flat on the wire outlet end 270.

[0024] According to the hot riveting fixing structure for the cover plate of the low-thickness CCS module according to the embodiment of this application, multiple wire harnesses 310 are laid flat at the outlet end 270, and the cover plate 600 and the wire harnesses 310 abut against each other. The cover plate 600 can play a pressing and fixing role for the wire harnesses 310, ensuring the installation stability of the wire harnesses 310, and keeping the wire harnesses 310 in a flat state, preventing multiple wire harnesses 310 from being stacked together. This can effectively reduce the thickness or height of the wire harnesses 310 at the outlet end 270, thereby reducing the thickness at the outlet end 270 of the bracket 200. The overall thickness of the CCS module can also be reduced accordingly, which is beneficial to the lightweight design of the CCS module.

[0025] It should be noted that the cover plate 600 can directly abut against the wire harness 310. The cover plate 600 and the wire harness 310 can also indirectly abut against each other, that is, other structures can be set between the cover plate 600 and the wire harness 310.

[0026] In some examples, the cover plate 600 is fixedly connected to the bracket 200. For example, the cover plate 600 may be connected to the bracket 200 by means of adhesive, snap-fit, or welding.

[0027] Understandably, in actual operation, the second end of the wire harness 310 can be extended to the outlet end 270 first, and then the cover plate 600 can be placed on the outlet end 270. The cover plate 600 can be used to press down on the wire harness 310, so that the wire harness 310 is in a flat state. That is to say, the wire harness 310 can be laid flat first, and then the cover plate 600 can be used to limit and fix it, or the cover plate 600 can be used directly to press down on the wire harness 310 to make it in a flat state.

[0028] In some embodiments, such as Figure 8 and Figure 9 As shown, the heat-riveting fixing structure for the cover plate of the low-thickness CCS component also includes an adhesive part 700, at least part of which is provided at the wire outlet 270. The adhesive part 700 connects the wire harness 310 and the bracket 200 to fix the wire harness 310.

[0029] Understandably, the adhesive part 700 is provided at the outlet end 270. Using the adhesive part 700 to connect the wire harness 310 and the bracket 200 improves the installation stability of the wire harness 310, allowing multiple wire harnesses 310 to remain flat. In other words, both the adhesive part 700 and the cover plate 600 can limit the movement of the wire harness 310, effectively ensuring that multiple wire harnesses 310 remain flat at the outlet end 270. This reduces the thickness of the bracket 200 at the outlet end 270, and consequently, the overall thickness of the CCS assembly.

[0030] In some embodiments, such as Figure 8 and Figure 9 As shown, the adhesive part 700 is connected to the cover plate 600.

[0031] It is understandable that the adhesive part 700 is connected to the wire harness 310, the bracket 200 and the cover plate 600 at the same time. That is, the adhesive part 700 can ensure the connection stability between the cover plate 600 and the bracket 200, and can ensure the connection stability between the cover plate 600 and the wire harness 310. In this way, the cover plate 600 can play a stable crimping role on the wire harness 310, ensuring that the multiple wire harnesses 310 at the wire outlet 270 can remain in a flat state.

[0032] In some embodiments, such as Figure 8 and Figure 9 As shown, the adhesive part 700 includes an adhesive part 710, which is disposed at the wire outlet 270 by dispensing adhesive.

[0033] It is understandable that by applying glue, an adhesive portion 710 is formed at the wire outlet 270. When applying glue, the glue will penetrate between two adjacent wire bundles 310. That is, the bonding portion 700 can bond different wire bundles 310 together, which is beneficial for keeping multiple wire bundles 310 in a flat state.

[0034] In some embodiments, a sol space is formed between the cover plate 600 and the wire harness 310, and the adhesive portion 700 includes an adhesive portion 710, which fills the sol space.

[0035] Understandably, this ensures sufficient contact area between the adhesive portion 710 and the cover plate 600, as well as between the adhesive portion 710 and the wire harness 310, thereby allowing the cover plate 600 and the wire harness 310 to be stably connected together. Furthermore, after the adhesive portion 710 solidifies, the cover plate 600 can be pressed against the wire harness 310 through the adhesive portion 710, keeping the multiple wire harnesses 310 in a flat, laid-out state.

[0036] In some embodiments, such as Figure 4 and Figure 7 As shown, the bracket 200 is provided with a wire passage 240, the wire harness 310 is at least partially disposed in the wire passage 240, and the cover plate 600 extends along the length of the bracket 200 and covers the wire passage 240.

[0037] Understandably, in addition to covering the cable outlet 270 of the bracket 200, the cover plate 600 also covers the cable passage 240 of the bracket 200. As a result, the cable harness 310 located at both the cable outlet 270 and the cable passage 240 will be subject to the contact limit of the cover plate 600, which increases the length of the contact limit of the cover plate 600 on the cable harness 310, thereby ensuring the installation stability of the cable harness 310.

[0038] In some embodiments, along the length of the bracket 200, the adhesive portion 700 extends away from the cable outlet 270, and the adhesive portion 700 is simultaneously connected to the wall of the cable passage 240, the cable harness 310, and the cover plate 600.

[0039] It is understandable that the adhesive part 700 is not only provided at the wire outlet 270 of the bracket 200, but also extends in a direction away from the wire outlet 270. That is, the adhesive part 700 can also play a role in bonding and fixing the wire harness 310 at other positions of the bracket 200, effectively increasing the installation stability of the wire harness 310.

[0040] In some embodiments, the distance between the cover plate 600 and the wire harness 310 along the radial direction of the wire harness 310 is less than the diameter of the wire harness 310.

[0041] Understandably, the distance between the cover plate 600 and the wire harness 310 is set to be less than the diameter of one wire harness 310, so that two or more wire harnesses 310 will not be stacked together between the cover plate 600 and the bracket 200, ensuring that multiple wire harnesses 310 are laid flat.

[0042] In some embodiments, the distance between the cover plate 600 and the outlet end 270 along the radial direction of the wire harness 310 is L, and the diameter of the wire harness 310 is R, wherein R≤L<2R.

[0043] In some embodiments, the cover plate 600 includes a cover plate body and a bending portion. The cover plate body covers the cable outlet 270 and abuts against the wire harness 310, and the bending portion is connected to the cover plate body. The bent portion extends along the width direction of the busbar 500 and is fixedly connected to the bracket 200.

[0044] It is understandable that the cover plate body is arranged along the length direction of the bracket 200, and the bent part extends along the width direction of the bracket 200, so that the bent part can be fixedly connected to different positions of the bracket 200, which is beneficial to improving the connection stability between the cover plate 600 and the bracket 200.

[0045] In some examples, the bend is connected to the bracket 200 by heat riveting.

[0046] According to an embodiment of the second aspect of this application, such as Figure 10 and Figure 11 As shown, the heat-riveting fixing structure for the cover plate of a low-thickness CCS component includes a bracket 200, multiple busbars 500, multiple wire harnesses 310, a crimping member 800, and an adhesive member 900.

[0047] The bracket 200 has a cable outlet 270, and a cable groove 241 is formed at the cable outlet 270 of the bracket 200. Multiple busbars 500 are arranged sequentially along the length direction of the bracket 200. Each busbar 500 is connected to at least one wire harness 310. The first end of the wire harness 310 is connected to the busbar 500. Along the length direction of the bracket 200, the second end of the wire harness 310 extends at least to the cable outlet 270. A crimping member 800 is located in the cable groove 241 and abuts against the wire harness 310 so that the multiple wire harnesses 310 are laid flat in the cable groove 241. An adhesive member 900 is provided in the cable groove 241 and is connected to the wire harness 310 to fix the wire harness 310.

[0048] According to the heat-riveting fixing structure for low-thickness CCS module cover plates in this application embodiment, multiple wire harnesses 310 are laid flat on the outlet end 270. A crimping member 800 is disposed in the wire channel 241 and abuts against the wire harnesses 310. At this time, the wire channel 241 can limit the crimping member 800, keeping the crimping member 800 stable. The crimping member 800 can also limit the crimping of the wire harnesses 310, ensuring the stable installation of the wire harnesses 310 and keeping the multiple wire harnesses 310 in a flat state. At the same time, an adhesive member 900 is disposed in the wire channel 241, which is used to bond the wire harnesses 310 and the bracket 200, ensuring the stable installation of the wire harnesses 310 and keeping the wire harnesses 310 in a flat state. In other words, by using the crimping member 800 and the adhesive member 900, this application can make the multiple wire bundles 310 at the wire end 270 lie flat, effectively reducing the thickness or height of the wire bundles 310 at the wire end 270, thereby reducing the thickness at the wire end 270 of the bracket 200. The overall thickness of the CCS assembly can also be reduced, which is beneficial to the lightweight design of the CCS assembly.

[0049] In some examples, the crimping member 800 is interference-fitted with the wire channel 241, thereby ensuring the installation stability of the crimping member 800. This allows the crimping member 800 to provide a stable limiting effect on the wire harness 310, ensuring that the wire harness 310 can be stably laid flat.

[0050] Understandably, in actual operation, the second end of the wire harness 310 can be extended along the wire groove 241 to the outlet end 270. Then, the crimping member 800 is placed in the wire groove 241, and the crimping member 800 is used to press down the wire harness 310, so that multiple wire harnesses 310 are in a flat state. That is to say, the wire harnesses 310 can be laid flat first, and then the crimping member 800 can be used to limit and fix them, or the crimping member 800 can be used directly to press down so that multiple wire harnesses 310 are in a flat state.

[0051] In some examples, the crimping element 800 is, for example, a foam block or an elastic block.

[0052] In some embodiments, such as Figure 10 and Figure 11 As shown, there are at least two crimping parts 800, and at least two crimping parts 800 are arranged sequentially along the length of the bracket 200. An adhesive part 900 is located between two adjacent crimping parts 800, and the adhesive part 900 is connected to both the wire harness 310 and the crimping parts 800.

[0053] Understandably, different crimping components 800 can all serve to crimp and limit the wire harness 310, thereby ensuring that multiple wire harnesses 310 are stably laid flat. At the same time, the adhesive component 900 can bond the wire harness 310 and the crimping component 800, which can further improve the connection stability between the crimping component 800 and the wire harness 310, effectively ensuring that multiple wire harnesses 310 can remain in a laid flat state.

[0054] Understandably, after the crimping member 800 presses down on the wire harness 310, causing multiple wire harnesses 310 to be laid flat, an adhesive member 900 is placed between the two crimping members 800. Since multiple wire harnesses 310 are laid flat at this time, the adhesive member 900 can connect the multiple wire harnesses 310 in the laid flat state to the crimping member 800 together, ensuring that the multiple wire harnesses 310 can be stably laid flat, thus ensuring the installation stability of the wire harnesses 310.

[0055] In some embodiments, such as Figure 10 and Figure 11 As shown, the adhesive component 900 includes an adhesive component 910, which is disposed between two adjacent pressing components 800 by dispensing adhesive.

[0056] It is understandable that by applying glue, an adhesive component 910 is formed between the two crimping components 800. When applying glue, the glue will penetrate between the two adjacent wire harnesses 310, that is, the adhesive component 900 can bond different wire harnesses 310 together, which is beneficial for keeping multiple wire harnesses 310 in a flat state.

[0057] Meanwhile, the crimping part 800 can block the glue, which is beneficial to the formation of the glue part 910.

[0058] Specifically, the crimping component 800 is sealed to the side wall of the wire groove 241.

[0059] This prevents glue from flowing out between the sidewalls of the crimping part 800 and the wire groove 241 when the glue part 910 is installed, ensuring that the glue part 910 can be successfully formed.

[0060] In some embodiments, the crimping member 800 is embedded in the wire groove 241.

[0061] It is understandable that by embedding the crimping component 800 in the wire channel 241, the installation stability of the crimping component 800 can be improved, so that the crimping component 800 can play a stable crimping and limiting role on the wire harness 310, and so that multiple wire harnesses 310 can be kept in a flat state.

[0062] In some embodiments, the crimping member 800 is interference-fitted with the wall of the wire groove 241.

[0063] It is understandable that by using an interference fit to place the crimping component 800 in the wire channel 241, the installation stability of the crimping component 800 can be improved, so that the crimping component 800 can play a stable crimping and limiting role on the wire harness 310, and so that multiple wire harnesses 310 can be kept in a flat state.

[0064] In some embodiments, the heat-riveting fixing structure for the cover plate of the low-thickness CCS component further includes a cover plate 600, which covers at least the wire groove 241 and abuts against the crimping member 800.

[0065] Understandably, the cover plate 600 and the bracket 200 are connected and cover the wire channel 241, allowing the cover plate 600 to abut against the crimping member 800. That is, the cover plate 600 abuts against the side of the crimping member 800 opposite to the wire harness 310, enabling the cover plate 600 to crimp and fix the crimping member 800, ensuring the stable installation of the crimping member 800. This, in turn, allows the crimping member 800 to effectively limit and fix the wire harness 310, ensuring the installation stability of the wire harness 310 and ensuring that multiple wire harnesses 310 can be stably laid flat.

[0066] In some embodiments, the heat-riveting fixing structure for the cover plate of a low-thickness CCS component includes at least two opposing pressing members 800, and the adhesive member 900 includes an adhesive member 910. The cover plate 600, the groove wall of the wire groove 241 and the two opposing pressing members 800 surround and form a receiving space, and the adhesive member 910 fills the receiving space.

[0067] Understandably, the adhesive component 910 can fill the accommodating space, meaning that the adhesive component 910 can simultaneously connect to the cover plate 600, the channel wall of the wire passage 241, the crimping component 800, and the wire harness 310. In other words, the adhesive component 910 can connect the wire harness 310, the wire passage 241, the crimping component 800, and the cover plate 600 into a whole, ensuring the structural stability of the heat-riveting fixing structure used for the cover plate of low-thickness CCS modules, allowing the wire harness 310 to remain in a flat state.

[0068] In some embodiments, such as Figure 4 and Figure 7 As shown, the bracket 200 includes a bracket body 210, a partition group 220 disposed on the bracket body 210, and a limiting protrusion 230 disposed on the bracket 200. The partition group 220 includes a plurality of partitions 221. The plurality of partitions 221 are spaced apart along the length direction of the bracket 200. A busbar 500 is provided between two adjacent partitions 221. The limiting protrusion 230 and the partition group 220 are spaced apart to form a wire groove 241. The limiting protrusion 230 extends along the length direction of the bracket 200 to the wire outlet end 270 to form a wire groove 241 at the wire outlet end 270.

[0069] Thus, by extending the limiting protrusion 230, the limiting protrusion 230 can cooperate with the partition 221 to form a wire groove 241 at the wire outlet 270, so as to provide the crimping member 800 and the adhesive member 900 at the wire outlet 270.

[0070] In some embodiments, the adhesive portion 700 and the adhesive element 900 may be integrally formed.

[0071] In some embodiments, the adhesive portion and the adhesive component can be formed simultaneously by dispensing.

[0072] In some embodiments, refer to Figures 1 to 4 The heat-riveting fixing structure for the cover plate of a low-thickness CCS component includes a bracket 200, a wire harness 310, and a filler 400. The bracket 200 has a wire passage 240. The wire harness 310 is disposed in the wire passage 240. The filler 400 is housed in the wire passage 240, and the filler 400 presses the wire harness 310 against the wall of the wire passage 240.

[0073] By providing a wire passageway 240 in the bracket 200 and using filler 400 to press the wire harness 310 against the channel wall, there is no need to create through holes in the bracket 200. This maintains the overall structural integrity of the bracket 200 and avoids the structural strength reduction caused by creating through holes for cable ties, thereby improving the load-bearing capacity and deformation resistance of the bracket 200.

[0074] In some embodiments, a plurality of fillers 400 are provided, and the plurality of fillers 400 are spaced apart in the extending direction of the wire passage 240.

[0075] By arranging multiple fillers 400 at intervals along the extension direction of the wire passage 240, the fixing force of the wire harness 310 can be distributed to multiple locations. Each filler 400 can apply pressure to the wire harness 310 in a local area, thereby ensuring that the wire harness 310 can be more securely installed in the wire passage 240 and improving the reliability of the wire harness 310 fixing.

[0076] After multiple fillers are spaced 400 apart, the wire harness 310 is fixed at multiple locations, forming multiple support points. These support points can effectively limit the vibration and sway of the wire harness 310 within the wire passage 240, especially under dynamic conditions, which can significantly improve the stability of the wire harness 310 and reduce the risk of wear and damage caused by vibration.

[0077] With multiple fillers 400 spaced apart, even if one filler 400 malfunctions, the others can still function to ensure the secure fixing of the wire harness 310. This redundancy design significantly improves system reliability and reduces the risk of system failure due to the failure of a single component.

[0078] However, this design is not limited to this. In some other implementations, the filler 400 extends from one end of the wire passage 240 to the other end of the wire passage 240.

[0079] In some embodiments, the heat-riveting fixing structure for the cover plate of a low-thickness CCS component further includes a busbar 500. The bracket 200 includes a bracket body 210, a partition group 220 disposed on the bracket body 210, and a limiting protrusion 230 disposed on the bracket 200. The partition group 220 includes a plurality of partition portions 221, which are spaced apart along the length of the bracket 200. A busbar 500 is provided between two adjacent partition portions 221. In this way, adjacent busbars 500 will not short-circuit.

[0080] In addition, the limiting protrusion 230 extends along the length of the bracket 200, and the limiting protrusion 230 and the partition group 220 are spaced apart to form a wire passage 240. A filler 400 is provided between the limiting protrusion 230 and the partition portion 221 of at least one partition group 220.

[0081] Thus, the partition 221 not only serves as a component for separating adjacent busbars 500, but also functions as a component for restricting the outgoing cable channel 240, which makes the partition 221 more versatile.

[0082] In the width direction of the bracket 200, the opposite sides of the filler 400 are restricted by the limiting protrusion 230 and the partition 221, which helps the filler 400 to be set more stably in the wire passage 240, thereby improving the reliability of the wire harness 310 fixation.

[0083] It is worth mentioning that the length direction of the bracket 200 is as follows Figure 4 As shown in the C direction.

[0084] In some embodiments, the bracket 200 further includes a plurality of first reinforcing posts 250, with one first reinforcing post 250 correspondingly disposed on a partition portion 221.

[0085] The first reinforcing post 250 is directly positioned corresponding to the partition 221, providing additional reinforcement to the partition 221. This localized reinforcement design effectively improves the bending and compressive strength of the partition 221, making it less prone to deformation or damage when subjected to external forces. This also ensures greater stability of the partition 221's shape, allowing for more stable relative positioning between the filler 400 and the partition 221 when the bracket 200 vibrates, reducing the likelihood of the filler 400 detaching from the partition 221, thereby improving the reliability of the wire harness 310's fixation.

[0086] Furthermore, multiple first reinforcing columns 250 are distributed along the length of the bracket 200, forming a stable support structure that enhances the overall structural strength and rigidity of the bracket 200. This allows the bracket 200 to better withstand various loads from the wiring harness 310, busbar 500, and the external environment, improving the overall stability of the system.

[0087] By enhancing the strength and stability of the partition 221, the risk of busbar 500 displacement, short circuit, and other failures caused by damage to the partition 221 is reduced, thereby improving the operational reliability of the entire hot riveting fixing structure used for the cover plate of low-thickness CCS components.

[0088] In some embodiments, the size of the filler 400 in the longitudinal direction of the wire passage 240 ranges from 2 to 5 times the size of the first reinforcing post 250. This ensures that the size of the filler 400 is not too small in the longitudinal direction of the wire passage 240, resulting in a larger contact area between the filler 400 and the wire harness 310, which improves the reliability of securing the wire harness 310. Furthermore, the size of the filler 400 in the longitudinal direction of the wire passage 240 is not too large, which helps save materials and costs.

[0089] In one example, the size of the filler 400 in the length direction of the wire channel 240 ranges from 2 times, 2.5 times, 3 times, 3.5 times, 4 times, 4.5 times, or 5 times the size of the first reinforcing post 250.

[0090] In some embodiments, a first reinforcing post 250 is disposed between the opposite ends of the corresponding filler 400 in the longitudinal direction of the bracket 200. Thus, the position of the two ends of the filler 400 relative to the separator 221 is more stable in the longitudinal direction of the bracket 200, which helps to improve the reliability of the fixed wire harness 310.

[0091] However, this design is not limited to this. In some other embodiments, in the width direction of the bracket 200, one end of the filler 400 is disposed opposite to the first reinforcing post 250, and the other end is disposed offset from the first reinforcing post 250.

[0092] It is worth mentioning that the width direction of bracket 200 is as follows: Figure 4 As shown in direction D in the diagram.

[0093] In some embodiments, the size of the filler 400 ranges from 10 mm to 30 mm along the length of the wire passage 240. This ensures that the filler 400 is not too small along the length of the wire passage 240, allowing for a larger contact area between the filler 400 and the wire harness 310, which improves the reliability of securing the wire harness 310. Furthermore, the size of the filler 400 is not too large along the length of the wire passage 240, which helps save materials and costs.

[0094] In one example, the size of the filler 400 may be, but is not limited to, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, or 30mm.

[0095] In some embodiments, the bracket 200 further includes a plurality of second reinforcing posts 260, which are disposed on the limiting protrusion 230. In the width direction of the bracket 200, a first reinforcing post 250 and a second reinforcing post 260 are disposed opposite to each other.

[0096] The first reinforcing column 250 and the second reinforcing column 260 are respectively located at different positions on the bracket 200 and are arranged opposite each other in the width direction, forming a multi-dimensional reinforcement structure. This design not only enhances the strength of the bracket 200 in the length direction, but also significantly improves the bending and torsional resistance of the bracket 200 in the width direction.

[0097] With the first reinforcing post 250 and the second reinforcing post 260 arranged opposite each other in the width direction, the overall structure of the bracket 200 is more stable and can better withstand loads from different directions, including the weight of the wiring harness 310, the busbar 500 and the impact force of the external environment.

[0098] Furthermore, a second reinforcing post 260 is provided on the limiting protrusion 230 to reinforce it. This localized reinforcement design effectively improves the bending and compressive strength of the limiting protrusion 230, making it less prone to deformation or damage when subjected to external forces. This also ensures greater stability of the limiting protrusion 230's shape. When the bracket 200 vibrates, the relative position of the filler 400 and the limiting protrusion 230 remains relatively stable, reducing the likelihood of the filler 400 detaching from the limiting protrusion 230 and thus improving the reliability of the wiring harness 310's fixation.

[0099] Refer to together Figure 5In some embodiments, the wire passage 240 is configured as a wire groove, which has a bottom and an opening opposite to the bottom. The hot riveting fixing structure for the cover plate of the low-thickness CCS module also includes a cover plate 600, which covers the opening. The cover plate 600 is riveted to the first reinforcing post 250 and to the second reinforcing post 260. The filler 400 and the wire harness 310 are disposed between the bottom of the groove and the cover plate 600.

[0100] Thus, the first reinforcing post 250 and the second reinforcing post 260 are also reused as components for connecting the cover plate 600, which makes the functions of the first reinforcing post 250 and the second reinforcing post 260 more diverse. In addition, in one example, the cover plate 600 is hot-riveted to the first reinforcing post 250 and also hot-riveted to the second reinforcing post 260. It can be understood that in this case, the first reinforcing post 250 is configured as the first hot-riveted post, and the second reinforcing post 260 is configured as the second hot-riveted post.

[0101] After the cover plate 600 closes the slot, the filler 400 and the wire harness 310 are tightly fixed between the bottom of the slot and the cover plate 600, ensuring that the wire harness 310 remains stable throughout the wire trough and reducing the occurrence of displacement or loosening due to external forces.

[0102] In addition, the riveting design of the cover plate 600 and the reinforcing post significantly improves the fixing effect of the wire harness 310 and the filler 400.

[0103] In some embodiments, the wire passage 240 is configured as a wire groove, which has a groove bottom and a slot opening opposite to the groove bottom. The heat-riveting fixing structure for the cover plate of the low-thickness CCS component also includes a cover plate 600, which covers the slot opening. The filler 400 and the wire harness 310 are disposed between the groove bottom and the cover plate 600.

[0104] After the cover plate 600 closes the slot, the filler 400 and the wire harness 310 are tightly fixed between the bottom of the slot and the cover plate 600, ensuring that the wire harness 310 remains stable throughout the wire trough and reducing the occurrence of displacement or loosening due to external forces.

[0105] In addition, the riveting design of the cover plate 600 and the reinforcing post significantly improves the fixing effect of the wire harness 310 and the filler 400.

[0106] However, this design is not limited to this. In some other embodiments, the cover plate 600 and the bracket 200 are integrally formed.

[0107] In some embodiments, the heat-riveting fixing structure for the cover plate of a low-thickness CCS component includes a wire harness group 300, which includes multiple wire harnesses 310. The wire harness group 300 is disposed in a wire passage channel 240, which has a first end and a second end opposite to each other. The wire harness group 300 is gradually tapered in the direction from the first end to the second end, and the distance between the cover plate 600 and the bottom of the groove gradually decreases in the direction from the first end to the second end.

[0108] The distance between the cover plate 600 and the bottom of the groove gradually decreases, matching the tapered shape of the wire harness assembly 300, thus better conforming to the shape of the wire harness assembly 300. This self-adaptive fixing method can further improve the stability of the wire harness 310 and reduce the risk of wear or damage caused by the wire harness 310 shaking or shifting.

[0109] It is worth mentioning that, since the multiple wire harnesses 310 of the wire harness group 300 are connected to multiple busbars 500 respectively, the wire harness group 300 is set in a gradually narrowing direction from the first end to the second end.

[0110] In some embodiments, the cover plate 600 includes a plate body 610 and a limiting portion 620 disposed on the side of the plate body 610 near the bottom of the groove. The plate body 610 is disposed on the top side of the partition portion 221 and the limiting protrusion 230, and the limiting portion 620 is disposed in the wire passage 240. The limiting portion 620 is gradually widened in the direction from the first end to the second end, so that the distance between the cover plate 600 and the bottom of the groove gradually decreases in the direction from the first end to the second end.

[0111] The distance between the cover plate 600 and the bottom of the groove gradually decreases, matching the tapered shape of the wire harness assembly 300, thus better conforming to the shape of the wire harness assembly 300. This self-adaptive fixing method can further improve the stability of the wire harness 310 and reduce the risk of wear or damage caused by the wire harness 310 shaking or shifting.

[0112] However, this design is not limited to this. In some embodiments, the bottom of the groove of the wire passage 240 gradually approaches the groove opening from the first end to the second end, so as to reduce the distance between the bottom of the groove and the cover plate 600, thereby making the distance between the cover plate 600 and the bottom of the groove gradually decrease from the first end to the second end.

[0113] In some embodiments, the partition group 220 is provided in two groups. In the width direction of the bracket 200, the limiting protrusion 230 is provided between the two partition groups 220. The limiting protrusion 230 and the two adjacent partition groups 220 respectively restrict a wire passage 240. The wire passage 240 is provided with a wire harness 310. The cover plate 600 covers the two slots.

[0114] In this way, a single cover plate 600 can complete the closing of two slots, which helps to improve the assembly efficiency of the hot riveting fixing structure used for cover plates of low-thickness CCS components.

[0115] In some embodiments, the cover plate 600 is disposed on the top side of the limiting protrusion 230, the limiting protrusion 230 is provided with a first clearance hole 231, the first clearance hole 231 is used to be disposed opposite to the explosion-proof valve of the battery cell, and in the height direction of the bracket 200, the cover plate 600 is provided with a second clearance hole 611 opposite to the first clearance hole 231.

[0116] In this way, when the explosion-proof valve is depressurized, the gas released by the explosion-proof valve can pass through the first clearance hole 231 and the second clearance hole 611 in sequence, which helps to improve the safety of the battery cell and reduce the occurrence of battery cell explosion.

[0117] In one example, the plate body 610 is provided with a second clearance hole 611.

[0118] Reference Figure 6 and 7 There are many ways to cover the two slots. Two cover plates 600 can be used instead of cover plate 600. Specifically, in some other embodiments, there are two sets of partition groups 220. In the width direction of the bracket 200, the limiting protrusion 230 is provided between the two partition groups 220. The limiting protrusion 230 and the two adjacent partition groups 220 respectively restrict a wire passage channel 240. The wire passage channel 240 is provided with a wire harness 310. There are two cover plates 600, and one cover plate 600 covers one slot.

[0119] In some other embodiments, a first clearance hole 231 is provided on the top side of the limiting protrusion 230. In the width direction of the bracket 200, the first clearance hole 231 is located between the two cover plates 600. Thus, in the height direction of the bracket 200, the cover plate 600 will not cover the first clearance hole 231. When the explosion-proof valve is depressurized, the gas released by the explosion-proof valve can pass sequentially through the first clearance hole 231 and the second clearance hole 611, thereby improving the safety of the battery cell and reducing the occurrence of battery cell explosions.

[0120] In some embodiments, the filler 400 is elastic.

[0121] The elastic filler 400 can adaptively adjust to the shape and size of the wire harness 310, closely conforming to the surface of the wire harness 310, thereby providing a more uniform and reliable fixation effect. This close fit can effectively prevent the wire harness 310 from loosening or shifting within the wire passage 240.

[0122] The elastic filler 400 can absorb and buffer external impact to a certain extent, reduce wear or damage to the wire harness 310 caused by vibration or external force, and further improve the fixing stability of the wire harness 310.

[0123] In some embodiments, the filler 400 is configured as foam. The availability and low cost of foam help reduce manufacturing costs for the heat-riveting fastening structure used in the cover plate of low-thickness CCS components. However, the design is not limited thereto; in some other embodiments, the filler 400 is configured as rubber.

[0124] In some embodiments, the filler 400 is adhered to the wall of the wire passage 240.

[0125] By bonding the filler 400 to the wall of the wire passage 240, the filler 400 can remain stable throughout use, reducing the possibility of displacement due to external forces. This strong bonding method significantly improves the fixation effect of the wire harness 310.

[0126] However, this design is not limited to this. In some other embodiments, the filler 400 is welded to the wall of the wire passage 240.

[0127] According to an embodiment of the third aspect of this application, the battery module includes the above-described hot riveting structure for a low-thickness CCS module cover plate.

[0128] According to the battery module of this application embodiment, multiple wire harnesses 310 are laid flat at the output end 270, and the cover plate 600 and the wire harnesses 310 abut against each other. The cover plate 600 can press and fix the wire harnesses 310, ensuring the installation stability of the wire harnesses 310, and keeping the wire harnesses 310 in a flat state to prevent multiple wire harnesses 310 from being stacked together. This can effectively reduce the thickness or height of the wire harnesses 310 at the output end 270, thereby reducing the thickness of the bracket 200 at the output end 270. The overall thickness of the CCS module can also be reduced accordingly, which is beneficial to the lightweight design of the CCS module.

[0129] Multiple wire harnesses 310 are laid flat on the outlet end 270. A crimping member 800 is placed within the wire channel 241 and abuts against the wire harnesses 310. The wire channel 241 then limits the crimping member 800, ensuring its stability. The crimping member 800, in turn, limits the crimping of the wire harnesses 310, guaranteeing stable installation and keeping the multiple wire harnesses 310 in a flat position. Simultaneously, an adhesive member 900 is placed within the wire channel 241 to bond the wire harnesses 310 to the bracket 200, further ensuring stable installation and maintaining the flat position of the wire harnesses 310. In other words, by using the crimping member 800 and the adhesive member 900, this application can make the multiple wire bundles 310 at the wire end 270 lie flat, effectively reducing the thickness or height of the wire bundles 310 at the wire end 270, thereby reducing the thickness at the wire end 270 of the bracket 200. The overall thickness of the CCS assembly can also be reduced, which is beneficial to the lightweight design of the CCS assembly.

[0130] According to an embodiment of the fourth aspect of this application, the battery pack includes the battery module described above.

[0131] According to the battery pack of this application embodiment, multiple wire harnesses 310 are laid flat at the outlet end 270, and the cover plate 600 and the wire harnesses 310 abut against each other. The cover plate 600 can press and fix the wire harnesses 310, ensuring the installation stability of the wire harnesses 310, and keeping the wire harnesses 310 in a flat state to prevent multiple wire harnesses 310 from being stacked together. This can effectively reduce the thickness or height of the wire harnesses 310 at the outlet end 270, thereby reducing the thickness of the bracket 200 at the outlet end 270. The overall thickness of the CCS assembly can also be reduced accordingly, which is beneficial to the lightweight design of the CCS assembly.

[0132] Multiple wire harnesses 310 are laid flat on the outlet end 270. A crimping member 800 is placed within the wire channel 241 and abuts against the wire harnesses 310. The wire channel 241 then limits the crimping member 800, ensuring its stability. The crimping member 800, in turn, limits the crimping of the wire harnesses 310, guaranteeing stable installation and keeping the multiple wire harnesses 310 in a flat position. Simultaneously, an adhesive member 900 is placed within the wire channel 241 to bond the wire harnesses 310 to the bracket 200, further ensuring stable installation and maintaining the flat position of the wire harnesses 310. In other words, by using the crimping member 800 and the adhesive member 900, this application can make the multiple wire bundles 310 at the wire end 270 lie flat, effectively reducing the thickness or height of the wire bundles 310 at the wire end 270, thereby reducing the thickness at the wire end 270 of the bracket 200. The overall thickness of the CCS assembly can also be reduced, which is beneficial to the lightweight design of the CCS assembly.

[0133] According to an embodiment of the fifth aspect of this application, the electrical device includes the battery pack described above.

[0134] According to the embodiment of this application, multiple wire harnesses 310 are laid flat at the outlet end 270, and the cover plate 600 abuts against the wire harnesses 310. The cover plate 600 can press and fix the wire harnesses 310, ensuring the installation stability of the wire harnesses 310 and keeping them flat. This prevents multiple wire harnesses 310 from being stacked together, effectively reducing the thickness or height of the wire harnesses 310 at the outlet end 270, thereby reducing the thickness of the bracket 200 at the outlet end 270. The overall thickness of the CCS assembly can also be reduced, which is beneficial to the lightweight design of the CCS assembly.

[0135] Multiple wire harnesses 310 are laid flat on the outlet end 270. A crimping member 800 is placed within the wire channel 241 and abuts against the wire harnesses 310. The wire channel 241 then limits the crimping member 800, ensuring its stability. The crimping member 800, in turn, limits the crimping of the wire harnesses 310, guaranteeing stable installation and keeping the multiple wire harnesses 310 in a flat position. Simultaneously, an adhesive member 900 is placed within the wire channel 241 to bond the wire harnesses 310 to the bracket 200, further ensuring stable installation and maintaining the flat position of the wire harnesses 310. In other words, by using the crimping member 800 and the adhesive member 900, this application can make the multiple wire bundles 310 at the wire end 270 lie flat, effectively reducing the thickness or height of the wire bundles 310 at the wire end 270, thereby reducing the thickness at the wire end 270 of the bracket 200. The overall thickness of the CCS assembly can also be reduced, which is beneficial to the lightweight design of the CCS assembly.

[0136] Electrical equipment can include vehicles, such as cars, ships, and airplanes. It can also include weighing scales, body fat scales, nutrition scales, body composition analyzers, charging devices, mobile terminals, and smart home devices, but this application does not limit the scope of such devices.

[0137] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A heat-riveting fixing structure for a cover plate of a low-thickness CCS module, characterized in that, include: The bracket has a cable outlet. Multiple busbars are arranged sequentially along the length of the bracket; Multiple wire harnesses, each of the busbars is connected to at least one wire harness, the first end of the wire harness is connected to the busbar, wherein, along the length of the bracket, the second end of the wire harness extends at least to the outlet end; A cover plate is provided at least over the outlet end, and the cover plate abuts against the wire harness so that the plurality of wire harnesses are laid flat on the outlet end.

2. The hot riveting fixing structure for low-thickness CCS module cover plates according to claim 1, characterized in that, The heat-riveting fixing structure for the cover plate of the low-thickness CCS component further includes an adhesive part, at least a portion of which is located at the wire outlet end. The adhesive part connects the wire harness and the bracket to fix the wire harness.

3. The hot riveting fixing structure for low-thickness CCS module cover plates according to claim 2, characterized in that, The adhesive portion is connected to the cover plate; and / or The adhesive portion includes an adhesive portion, which is applied to the lead-out end by dispensing adhesive; and / or... A sol space is formed between the cover plate and the wire harness, and the adhesive part includes an adhesive part that fills the sol space.

4. The hot riveting fixing structure for low-thickness CCS module cover plates according to claim 2, characterized in that, The bracket is provided with a wire passage, and the wire harness is at least partially disposed in the wire passage. The cover plate extends along the length of the bracket and covers the wire passage.

5. The hot riveting fixing structure for a low-thickness CCS module cover plate according to claim 4, characterized in that, Along the length of the bracket, the adhesive portion extends away from the outlet end, and the adhesive portion is simultaneously connected to the wall of the cable passage, the cable harness, and the cover plate.

6. The hot riveting structure for a cover plate of a low-thickness CCS module according to any one of claims 1 to 5, characterized in that, Along the radial direction of the wire harness, the distance between the cover plate and the wire harness is less than the diameter of the wire harness; and / or, Along the radial direction of the wire harness, the distance between the cover plate and the outlet end is L, and the diameter of the wire harness is R, where R≤L<2R.

7. The hot riveting structure for a cover plate of a low-thickness CCS module according to any one of claims 1 to 5, characterized in that, The cover plate includes a cover plate body and a bent portion. The cover plate body covers the outlet end and abuts against the wire harness. The bent portion is connected to the cover plate body. The bent portion extends along the width direction of the busbar and is fixedly connected to the bracket.

8. A battery module, characterized in that, Includes the heat-riveting fixing structure for the cover plate of a low-thickness CCS component as described in any one of claims 1 to 7.

9. A battery pack, characterized in that, Includes the battery module as described in claim 8.

10. An electrical appliance, characterized in that, Includes the battery pack as described in claim 9.

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