Busbar assembly, CCS assembly, battery pack and electric equipment

Abstract

The invention discloses a busbar assembly, a CCS assembly, a battery pack and electric equipment, and belongs to the technical field of batteries, the busbar assembly comprises a busbar, the busbar comprises a main body part and a wiring part which are connected, the main body part is used for being electrically connected with a battery cell, and the wiring part is used for fixing a wire harness and is used for being electrically connected with the wire harness, so that the wire harness is electrically connected with the battery cell. The process is simple, the production efficiency is improved, and the material cost is reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a bus assembly, a CCS assembly, a battery pack, and an electrical device. Background Technology

[0002] CCS (Cells Contact System), also known as "integrated busbar" or "battery connection assembly," includes a busbar used to electrically connect multiple battery cells. BMS (Battery Management System) is the "brain" of new energy vehicles, energy storage systems, and other scenarios, monitoring, protecting, and optimizing the battery pack's operating status. Its core functions work closely with the CCS wiring harness to jointly ensure battery safety, efficiency, and lifespan. In the CCS, the cell electrodes are connected via wiring harnesses, collecting the voltage signal of each individual cell and transmitting it to the BMS system. The BMS uses the voltage data to determine the battery's charge / discharge level, preventing overcharging or over-discharging that could lead to lifespan degradation or safety risks.

[0003] In related technologies, wire harnesses are fixed using nickel-plated terminals. During CCS assembly, the nickel-plated terminals need to be crimped to the wire harness first, and then the nickel-plated terminals are soldered to the busbar to connect the wire harness to the busbar. However, this structural design has the following drawbacks: during assembly, the wire harness needs to be crimped to the nickel-plated terminals first, and then multiple nickel-plated terminals need to be soldered to the busbar one by one, which is a complex process with low production efficiency and high cost. Summary of the Invention

[0004] This application provides a bus assembly, a CCS assembly, a battery pack, and an electrical device to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a bus assembly is provided, comprising:

[0006] The busbar includes a main body and a terminal part connected to each other. The main body is used to electrically connect with the battery cell, and the terminal part is used to fix the wire harness and to electrically connect with the wire harness so that the wire harness can be electrically connected to the battery cell.

[0007] In these embodiments, the wire harness is fixed to the wiring terminal of the bus. Compared with the related technology (which uses nickel-plated terminals to fix the wire harness, requiring the nickel-plated terminals to be crimped to the wire harness and then soldered to the bus during CCS assembly), the embodiments of this application are simpler in process and improve production efficiency. Furthermore, it saves nickel sheets, reducing material costs.

[0008] Optionally, the main body and the wiring part are integrally formed.

[0009] Optionally, the wiring section is provided with a wiring groove for the wire harness to pass through, and at least part of the sidewall of the wiring groove is used to connect with the wire core of the wire harness.

[0010] Optionally, the wiring slot includes a first sub-slot and a second sub-slot, the wire harness includes an outer sheath and a wire core, the outer sheath covers the outer periphery of the wire core, the first sub-slot is used for the wire harness to pass through, and at least a portion of the sidewall of the second sub-slot is used to connect with the wire core of the wire harness.

[0011] Optionally, the width of the second sub-slot is smaller than the width of the first sub-slot.

[0012] In these embodiments, because the outer sheath covers the outer periphery of the wire core, the overall diameter of the wire harness is larger than the diameter of the wire core. The width of the second sub-slot is smaller than the width of the first sub-slot, so that the first sub-slot can better match the wire harness, thereby more firmly fixing the wire harness, and the second sub-slot can better match the wire core, thereby more firmly fixing the wire core.

[0013] Optionally, the diameter of the wire core is in the range of 0.7mm to 1.2mm.

[0014] Optionally, the thickness of the outer skin can range from 0.20 mm to 0.24 mm.

[0015] Optionally, the width of the first sub-slot can be in the range of 1.0 to 1.9 mm.

[0016] Optionally, the width of the second sub-slot ranges from 0.7mm to 1.2mm.

[0017] Optionally, the extension direction of the second sub-slot is the same as the extension direction of the first sub-slot.

[0018] Optionally, the wiring portion includes a first sub-portion and a second sub-portion, the first sub-portion being connected between the main body portion and the second sub-portion, wherein one of the first sub-portion and the second sub-portion is provided with the first sub-slot and the other is provided with the second sub-slot.

[0019] Optionally, the first sub-part includes a first sidewall, a second sidewall, and a third sidewall connected in sequence. The first sidewall and the third sidewall are respectively connected to opposite ends of the second sidewall to form the first sub-groove and a first opening opposite to the second sidewall. The second sidewall is connected to the main body.

[0020] When assembling the wire harness, the wire harness can be installed into the first sub-slot from the first opening, and then the first sidewall and the third sidewall are bent inward respectively, so that the first sidewall and the third sidewall can close the first opening and hold the wire harness tightly.

[0021] Optionally, the angle M1 between the third sidewall and the second sidewall can be in the range of 80° to 90°.

[0022] Optionally, the first sub-part further includes a first limiting member, and at least one of the first sidewall and the third sidewall is equipped with the first limiting member. When the wiring part fixes the wire harness, at least a portion of the wire harness is located between the first limiting member and the second sidewall.

[0023] Optionally, the second sub-part includes a fourth sidewall, a fifth sidewall, and a sixth sidewall connected in sequence. The fourth sidewall and the sixth sidewall are respectively connected to opposite ends of the fifth sidewall to form the second sub-groove and a second opening opposite to the fifth sidewall. The fifth sidewall is connected to the first sub-part.

[0024] When assembling the wire harness, the wire harness can be installed into the second sub-slot from the second opening. Then, the fourth and sixth side walls are bent inwards respectively, so that the fourth and sixth side walls can close the second opening, hold the wire core tightly, and rivet it together with the wire core to realize the electrical connection between the wire core and the bus.

[0025] Optionally, the angle M2 between the sixth sidewall and the fifth sidewall can be in the range of 70° to 90°.

[0026] Optionally, the second sub-part further includes a second limiting member, at least one of the fourth sidewall and the sixth sidewall is equipped with the second limiting member, and when the wiring part fixes the wire harness, at least a portion of the wire harness is located between the second limiting member and the fifth sidewall.

[0027] Optionally, the main body includes a connecting sub-part and a recessed sub-part connected to each other. The connecting sub-part and the wiring part are arranged and connected along a first direction. The bottom wall of the recessed sub-part is arranged along a second direction with the connecting sub-part, the second direction forming an angle with the first direction. The bottom wall of the recessed sub-part is used for connection with the battery cell. This enhances the overall structural strength of the busbar, preventing deformation due to excessive thinness.

[0028] Optionally, the busbar assembly further includes a strip extending in a third direction, and there are multiple busbars, each of which is connected to the strip.

[0029] During assembly, a transmission mechanism, such as a belt, can be used to transport the busbar assembly. During transport, the wire harness can be pressed into the first and second sub-slots, and then the first and third sidewalls are bent inwards, as are the fourth and sixth sidewalls. The material strip is then cut to separate it from the wiring portion. Automated equipment can be used to complete the crimping of the busbar and wire harness, improving automation levels and enabling automated production to increase efficiency.

[0030] Optionally, in one of the busbars, the main body and the wiring portion are arranged along a first direction, and a plurality of busbars are arranged along a third direction, the third direction forming an angle with the first direction, and the wiring portion connecting the main body and the conveyor belt. This facilitates conveying and processing.

[0031] According to a second aspect of this application, a CCS assembly is provided, including a wire harness and a bus assembly as described above, wherein the wire harness is fixed to the wiring portion.

[0032] According to a third aspect of this application, a battery pack is also provided, comprising:

[0033] Battery cells; and,

[0034] The bus component or the CCS component mentioned above.

[0035] According to a fourth aspect of this application, an electrical device is also provided, including the bus assembly described above, the CCS assembly described above, or the battery pack described above.

[0036] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0037] 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 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.

[0038] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0039] Figure 1 This is a schematic diagram of the structure of a CCS component provided in an exemplary embodiment of this disclosure;

[0040] Figure 2 This is a schematic diagram of the structure of a bus component provided in an exemplary embodiment of this disclosure;

[0041] Figure 3 This is a schematic diagram of the structure of a CCS component provided in another exemplary embodiment of this disclosure;

[0042] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0043] Figure 5 yes Figure 4 Further demonstration;

[0044] Figure 6 yes Figure 3 A schematic diagram of the structure for removing the wire harness;

[0045] Figure 7 yes Figure 6 Enlarged schematic diagram of part B;

[0046] Figure 8 This is a schematic diagram of the structure of the first limiting member provided in an exemplary embodiment of this disclosure;

[0047] Figure 9 This is a schematic diagram of the structure of the second limiting member provided in an exemplary embodiment of this disclosure;

[0048] Figure 10 This is a block diagram of an electrical device provided in an exemplary embodiment.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Busbar assembly; 10. Busbar; 11. Main body; 111. Connecting sub-section; 113. Recessed platform sub-section; 1131. Bottom wall of the recessed platform sub-section;

[0051] 13. Wiring section; 130. Wiring groove; 131. First sub-groove; 133. Second sub-groove; 134. First sub-section; 1341. First side wall; 1343. Second side wall; 1345. Third side wall; 1346. First opening; 1347. First limiting member; 135. Second sub-section; 1351. Fourth side wall; 1353. Fifth side wall; 1355. Sixth side wall; 1356. Second opening; 1357. Second limiting member;

[0052] 30. Material strip; 301. Positioning hole;

[0053] 2. Wire harness; 21. Outer sheath; 23. Wire core;

[0054] 3. CCS component;

[0055] 4. Battery pack; 401. Battery cell;

[0056] 5. Electrical equipment. Detailed Implementation

[0057] 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 them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0058] CCS (Cells Contact System), also known as "integrated busbar" or "battery connection assembly," includes a busbar. The busbar enables electrical connections between multiple cells and integrates necessary signal acquisition and transmission functions. The BMS (Battery Management System) is the "brain" of battery packs in new energy vehicles, energy storage systems, and other scenarios, monitoring, protecting, and optimizing battery pack operation. Its core functions work closely with the CCS wiring harness to jointly ensure battery safety, efficiency, and lifespan. In the CCS, the cell electrodes are connected via wiring harnesses, and the voltage signal of each individual cell is collected and transmitted to the BMS system. The BMS uses the voltage data to determine the battery's charge / discharge level, preventing lifespan degradation or safety risks caused by overcharging or over-discharging. In related technologies, the wiring harness is fixed using nickel-plated terminals. During CCS assembly, the nickel-plated terminals are first crimped to the wiring harness, and then the terminals are soldered to the busbar to achieve the connection between the wiring harness and the busbar. However, this structural design has the following drawbacks: during assembly, the wire harness needs to be crimped to the nickel sheet first, and then multiple nickel sheets need to be welded to the busbar one by one. The process is complicated, the production efficiency is low, and the cost is high.

[0059] Please combine Figure 1 This application provides a bus assembly 1. The bus assembly 1 includes a bus 10, which includes a wiring portion 13 and a main body portion 11 connected to each other. The main body portion 11 is used for electrical connection with a battery cell 401, and the wiring portion 13 is used for fixing a wire harness 2 and for electrical connection with the wire harness 2, so that the wire harness 2 can be electrically connected to the battery cell 401.

[0060] The wiring harness 2 can be used to connect the electrodes of the battery cell 401 and the BMS. The wiring harness 2 can collect the electrical signals of the battery cell 401 and transmit them to the BMS system. The wiring portion 13 is used to fix the wiring harness 2 and is electrically connected to the wiring harness 2 to facilitate the electrical connection between the wiring harness 2 and the battery cell 401. In these embodiments, the wiring harness 2 is fixed to the wiring portion 13 of the busbar 10. Compared with the related technology (fixing the wiring harness through nickel-plated terminals, which requires crimping the nickel-plated terminals to the wiring harness and then welding the nickel-plated terminals to the busbar during CCS assembly), the embodiments of this application have a simpler process and improved production efficiency. Furthermore, it saves nickel-plated terminals, reducing material costs.

[0061] In some embodiments, the main body 11 and the wiring portion 13 can be integrally formed. The main body 11 and the wiring portion 13 can be stamped out from a single sheet of metal.

[0062] In one example, bus 10 can be directly crimped to harness 2.

[0063] Please combine Figure 1 In some embodiments, the wiring portion 13 is provided with a wiring groove 130, which can be used for the wire harness 2 to pass through, and at least part of the sidewall of the wiring groove 130 is used to connect with the wire core 23 of the wire harness 2.

[0064] The wire harness 2 can be installed in the wiring groove 130 of the wiring section 13. At least part of the side wall of the wiring groove 130 is used to connect with the wire core 23 of the wire harness 2, thereby realizing the electrical connection between the wire core 23 and the side wall of the wiring groove 130. That is, by connecting the wire core 23 of the wire harness 2 to the side wall of the wiring groove 130, the wire core 23 of the wire harness 2 is electrically connected to the wiring section 13.

[0065] Please combine Figure 3 , Figure 4 In some embodiments, the wiring slot 130 includes a first sub-slot 131 and a second sub-slot 133. The wire harness 2 includes an outer sheath 21 and a wire core 23. The outer sheath 21 covers the outer periphery of the wire core 23. The first sub-slot 131 is used for the wire harness 2 to pass through, and at least a portion of the sidewall of the second sub-slot 133 is used to connect with the wire core 23 of the wire harness 2. It should be noted that the wire harness with the outer sheath 21 and the wire core 23 passes through the first sub-slot 131, with the outer sheath 21 covering the outer periphery of the wire core 23. The wire harness with the outer sheath stripped, i.e., the wire core 23, passes through the second sub-slot 133. The outer sheath 2 has an insulating effect, and the wire harness with the outer sheath stripped, i.e., the wire core 23, can transmit electrical signals between itself and the sidewall of the second sub-slot 133.

[0066] The width of the second sub-slot 133 is smaller than the width of the first sub-slot 131.

[0067] Because the outer sheath 21 covers the outer periphery of the wire core 23, the overall diameter of the wire harness 2 is larger than the diameter of the wire core 23. The width of the second sub-slot 133 is smaller than the width of the first sub-slot 131, so that the first sub-slot 131 can better match the wire harness 2 with the outer sheath 21 and the wire core 23, thereby more firmly fixing the wire harness 2 with the outer sheath 21 and the wire core 23, and the second sub-slot 133 can better match the wire core 23, thereby more firmly fixing the wire core 23.

[0068] In some embodiments, the diameter of the wire core 23 ranges from 0.7 mm to 1.2 mm. For example, the diameter of the wire core 23 can be 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, or 1.2 mm.

[0069] In some embodiments, the thickness of the outer skin 21 ranges from 0.20 mm to 0.24 mm. For example, the thickness of the outer skin 21 can be 0.20 mm, 0.21 mm, 0.22 mm, 0.23 mm, or 0.24 mm.

[0070] Please combine Figure 6 and Figure 7 In some embodiments, the width L1 of the first sub-slot 131 ranges from 1.0mm to 1.9mm. The width of the first sub-slot 131 can be 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, or 1.9mm.

[0071] In some embodiments, the width L2 of the second sub-slot 133 ranges from 0.7mm to 1.2mm. The width of the second sub-slot 133 can be 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, or 1.2mm. This configuration ensures that the wire core 23 is securely fixed in the second sub-slot 133, and the wire harness 2 with its sheath 21 and wire core 23 is securely fixed in the first sub-slot 131.

[0072] The second sub-slot 133 extends in the same direction as the first sub-slot 131, thus securing the wire harness 2 more firmly. In some examples, the extension direction of the second sub-slot 133 and the extension direction of the first sub-slot 131 can both be the first direction.

[0073] The wiring section 13 includes a first sub-section 134 and a second sub-section 135. The first sub-section 134 is connected between the main body section 11 and the second sub-section 135. One of the first sub-section 134 and the second sub-section 135 is provided with a first sub-slot 131, and the other is provided with a second sub-slot 133.

[0074] In some embodiments, the first sub-part 134 includes a first sidewall 1341, a second sidewall 1343, and a third sidewall 1345 connected in sequence. The first sidewall 1341 and the third sidewall 1345 are respectively connected to opposite ends of the second sidewall 1343 to form a first sub-groove 131 and a first opening 1346 opposite to the second sidewall 1343. The second sidewall 1343 is connected to the main body 11.

[0075] Please combine Figure 5The angle M1 between the third sidewall 1345 and the second sidewall 1343 ranges from 80° to 90°. Specifically, the angle M1 can be 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, or 90°. This arrangement facilitates the placement of the wire core 23 into the first sub-slot 131 from the first opening 1346. In some examples, the angle M1 between the third sidewall 1345 and the second sidewall 1343 is 82°.

[0076] Please combine Figure 8 The first sub-part 134 also includes a first limiting member 1347. At least one of the first sidewall 1341 and the third sidewall 1345 is equipped with the first limiting member 1347. When the wiring part 13 fixes the wire harness 2, at least a portion of the wire harness 2 is located between the first limiting member 1347 and the second sidewall 1343.

[0077] Please combine Figure 8 In one example, the first limiting member 1347 can be a spring clip, and there are two spring clips. One spring clip has one end connected to the first sidewall 1341, and the other end is inclined towards the direction close to the second sidewall 1343 and towards the direction close to the third sidewall 1345. The other spring clip has one end connected to the third sidewall 1345, and the other end is inclined towards the direction close to the second sidewall 1343 and towards the direction close to the first sidewall 1341. With this configuration, on the one hand, the wire harness 2 can pass through the first limiting member 1347 from the first opening 1346 and be installed between the first limiting member 1347 and the second sidewall 1343. On the other hand, when the wire harness 2 is located between the first limiting member 1347 and the second sidewall 1343, the first limiting member 1347 can cooperate with the second sidewall 1343 to limit the wire harness 2, preventing the wire harness from coming out of the first opening 1346.

[0078] The second sub-part 135 includes a fourth sidewall 1351, a fifth sidewall 1353, and a sixth sidewall 1355. The fourth sidewall 1351 and the sixth sidewall 1355 are respectively connected to opposite ends of the fifth sidewall 1353 to form a second sub-groove 133 and a second opening 1356 opposite to the fifth sidewall 1353. The fifth sidewall 1353 is connected to the first sub-part 134. The fifth sidewall 1353 can be connected to the second sidewall 1343 of the first sub-part 134.

[0079] Please combine Figure 5The included angle M2 between the sixth sidewall 1355 and the fifth sidewall 1353 ranges from 70° to 90°. Specifically, the included angle M2 can be 70°, 72°, 73°, 75°, 76°, 78°, 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, or 90°. This arrangement facilitates the placement of the wire harness 2 into the second sub-slot 133 from the second opening 1356. In some examples, the included angle M2 between the sixth sidewall 1355 and the fifth sidewall 1353 is 80°.

[0080] The second sub-part 135 also includes a second limiting member 1357. At least one of the fourth side wall 1351 and the sixth side wall 1355 is equipped with the second limiting member 1357. When the wiring part 13 fixes the wire harness 2, at least a portion of the wire harness 2 is located between the second limiting member 1357 and the fifth side wall 1353.

[0081] Please combine Figure 9 In one example, the second limiting member 1357 can be a spring clip, and there are two spring clips. One spring clip has one end connected to the fourth side wall 1351, and the other end is inclined towards the direction close to the fifth side wall 1353 and towards the direction close to the sixth side wall 1355. The other spring clip has one end connected to the sixth side wall 1355, and the other end is inclined towards the direction close to the fifth side wall 1353 and towards the direction close to the fourth side wall 1351. With this configuration, on the one hand, the wire harness 2 can pass through the second limiting member 1357 from the second opening 1356 and be installed between the second limiting member 1357 and the fifth side wall 1353. On the other hand, when the wire harness 2 is located between the second limiting member 1357 and the fifth side wall 1353, the second limiting member 1357 can cooperate with the fifth side wall 1353 to limit the wire harness 2, preventing the wire harness from coming out of the second opening 1356.

[0082] In some embodiments, the first sidewall 1341, the second sidewall 1343 and the third sidewall 1345 form a first sub-groove 131 and a first opening 1346 communicating with the first sub-groove 131, the second sidewall 1343 being connected to the main body 11 and exposed in the first opening 1346.

[0083] In some examples, the first sidewall 1341 may be disposed opposite to the third sidewall 1345, and the first opening 1346 may be disposed opposite to the second sidewall 1343. When assembling the wire harness 2, the wire harness 2 can be installed into the first sub-slot 131 through the first opening 1346, and then the first sidewall 1341 and the third sidewall 1345 are bent inward respectively, so that the first sidewall 1341 and the third sidewall 1345 can close the first opening 1346 and can hold the wire harness 2 tightly.

[0084] In some embodiments, the second sub-part 135 includes a fourth sidewall 1351, a fifth sidewall 1353, and a sixth sidewall 1355 connected in sequence. The fourth sidewall 1351, the fifth sidewall 1353, and the sixth sidewall 1355 form a second sub-groove 133 and a second opening 1356 communicating with the first sub-groove 131. The fifth sidewall 1353 is connected to the first sub-part 134 and is exposed in the second opening 1356.

[0085] In some examples, the fourth sidewall 1351 may be positioned opposite the sixth sidewall 1355, and the second opening 1356 may be positioned opposite the fifth sidewall 1353. When assembling the wire harness 2, the wire harness 2 can be installed into the second sub-slot 133 through the second opening 1356. Then, the fourth sidewall 1351 and the sixth sidewall 1355 are bent inwards respectively, so that the fourth sidewall 1351 and the sixth sidewall 1355 can close the second opening 1356, and can hold the wire core 23 tightly and rivet it together with the wire core 23, thus achieving electrical connection between the wire core 23 and the busbar 10.

[0086] In one example, the first sub-part 134 and the second sub-part 135 can be two claw structures connected to the busbar 10. The second sub-part 135 is smaller than the first sub-part 134 because the second sub-part 135 houses the wire core 23, while the first sub-part 134 houses the wire harness 2 (including the outer sheath 21 and the wire core 23). The second sub-part 135 can be riveted to the wire core 23, and the first sub-part 134 can be riveted to the outer sheath 21 of the wire harness 2, thereby securing the wire harness 2. When the busbar 10 is crimped with the wire harness 2, the vertical walls on both sides of the second sub-part 135 (e.g., the fourth side wall 1351 and the sixth side wall 1355) bend inward to hug the wire core 23 and are riveted together with it. The upright walls on both sides of the first sub-part 134 (e.g., the first side wall 1341 and the third side wall 1345) are bent inward to hug the outer sheath 21 of the wire harness 2 and riveted together with the outer sheath 21, thereby realizing the crimping of the wire harness 2 with the busbar 10.

[0087] In one embodiment of this application, the width of the first sub-part 134 is greater than the width of the second sub-part 135, thereby facilitating the formation of a wider first sub-groove 131 within the first sub-part 134. The first sub-part 134 and the second sub-part 135 can be connected to the main body 11 in two ways: the second sub-part 135 is connected between the main body 11 and the first sub-part 134; or the first sub-part 134 is connected between the main body 11 and the second sub-part 135. In one example, the first sub-part 134 is connected between the main body 11 and the second sub-part 135. This allows for a larger connection area between the main body 11 and the wiring portion 13, enabling the busbar 10 to better resist bending forces. Furthermore, after the wire harness 2 is crimped onto the busbar 10, the wire harness 2 can cooperate with the busbar 10 and the wiring portion 13 to jointly resist bending forces, resulting in greater connection strength.

[0088] Please combine Figure 2 In some embodiments, the main body 11 includes a connecting sub-part 111 and a recessed sub-part 113 connected to each other. The connecting sub-part 111 and the wiring part 13 are arranged and connected along a first direction, and the bottom wall 1131 of the recessed sub-part is arranged along a second direction with the connecting sub-part 111. The second direction and the first direction have an angle, for example, an angle of 90 degrees or 60 degrees. In some examples, the angle between the second direction and the first direction is 90 degrees. The bottom wall 1131 of the recessed sub-part is used to connect with the battery cell 401. The bottom wall 1131 of the recessed sub-part and the battery cell 401 can be welded together, thereby electrically connecting the busbar 10 and the battery cell 401, and thus realizing the electrical connection between the wire harness 2 and the battery cell 401. This can enhance the overall structural strength of the busbar 10 and prevent the busbar 10 from being too thin and deformed.

[0089] In some embodiments, the bottom wall 1131 of the recessed portion (the welding position between the busbar 10 and the battery cell 401) can be recessed downwards in the form of an arc or other shape, such as a square. Please refer to Figure 2 , Figure 2 The bottom wall 11311 of the recessed platform portion is recessed downward relative to the connecting portion 111 to form an arc shape, so that the bottom wall 1131 of the recessed platform portion and the connecting portion 111 are arranged along the second direction.

[0090] In some embodiments, please combine Figure 3 The busbar 10 can be connected to a terminal block 401 via a connector 111, and the connector 111 can be connected to a wiring terminal. In other embodiments, six busbars 113 can be connected to a connector 111, but this application does not limit the specific embodiment. One busbar 113 can be soldered to a battery cell, thereby electrically connecting the busbar 10 to the battery cell 401, and thus realizing the electrical connection between the wire harness 2 and the battery cell 401.

[0091] In some embodiments, the connecting sub-part 111 and the wiring part 13 may be arranged and connected along a first direction, and the bottom wall 1131 of the recessed sub-part and the connecting sub-part 111 may be arranged along a second direction, which is perpendicular to the first direction. The bottom wall 1131 of the recessed sub-part may be located on the side of the connecting sub-part 111 that is away from the first side wall 1341.

[0092] In one example, the distance between the connecting sub-part 111 and the bottom wall 1131 of the recessed sub-part can be in the range of 0.1mm-0.8mm, specifically 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, and 0.8mm.

[0093] The busbar assembly 1 also includes a material belt 30, which extends in a third direction. There are multiple busbars 10, and the multiple busbars 10 are respectively connected to the material belt 30.

[0094] The strip 30 can be strip-shaped and extends in a third direction. The strip 30 and the busbar 10 can be integrally formed, meaning that the strip 30 and the busbar 10 are simultaneously processed on a single sheet material using an integral forming process. During assembly, a transmission mechanism, such as a belt, can be used to transport the busbar assembly 1. During transport, the wire harness 2 can be pressed into the first sub-groove 131 and the second sub-groove 133, and then the first sidewall 1341 and the third sidewall 1345 are bent inwards, and the fourth sidewall 1351 and the sixth sidewall 1355 are bent inwards, respectively. The strip 30 is then cut, separating it from the connector 13. In these embodiments, automated equipment can be used to complete the crimping of the busbar 10 and the wire harness 2, as well as the separation from the strip, improving the level of automation and achieving automated production to increase production efficiency.

[0095] Please combine Figure 2 In a busbar 10, the connecting sub-part 111 and the wiring part 13 are arranged along a first direction, and multiple busbars 10 are arranged along a third direction. The third direction has an angle with the first direction, which can be 90 degrees, 60 degrees, etc. In some examples, the angle between the third direction and the first direction can be 90 degrees. The wiring part 13 connects the main body 11 and the material belt 30. This facilitates conveying and processing. In some examples, the material belt 30 can be provided with positioning holes 301 along its extension direction. There can be multiple positioning holes, which are arranged along the extension direction of the material belt 30. This allows sensors to locate whether the material belt 30 has moved into position. When it is in position, the wiring harness 2 can be pressed onto the busbar 10.

[0096] According to a second aspect of this disclosure, a CCS component 3 is provided, which includes the bus component 1 described above. The CCS component 3 possesses all the beneficial effects of the bus component 1 described above, which will not be elaborated further herein.

[0097] Please combine Figure 10 According to a third aspect of this disclosure, a battery pack 4 is provided, which includes the bus assembly 1 or the CCS assembly 3 described above. The battery pack 4 has all the beneficial effects of the bus assembly 1 or the CCS assembly 3 described above, which will not be repeated here.

[0098] According to a fourth aspect of this disclosure, an electrical device 5 is provided, which includes the bus assembly 1, the CCS assembly 3, or the battery pack 4 described above. The electrical device 5 has all the beneficial effects of the bus assembly 1, the CCS assembly 3, or the battery pack 4 described above, which will not be repeated here.

[0099] Electrical equipment 5 may be a vehicle, which may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc. This disclosure does not make any specific limitations in this regard.

[0100] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0101] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0102] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0103] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A busbar assembly (1) characterized in that, The application relates to a busbar (10) comprising a main body (11) and a wiring portion (13), the main body (11) being used for electrically connecting with an electric core (401), and the wiring portion (13) being used for fixing a wiring harness (2) and electrically connecting with the wiring harness (2) so as to electrically connect the wiring harness (2) with the electric core (401). The main body (11) and the wiring portion (13) are integrally formed.

2. The busbar assembly (1) according to claim 1, characterized in that The wiring portion (13) is provided with a wiring slot (130) for the wiring harness (2) to pass through, and at least part of the side wall of the wiring slot (130) is used for connecting with the wire core (23) of the wiring harness (2).

3. The busbar assembly (1) according to claim 1, characterized in that The wiring slot (130) comprises a first sub-slot (131) and a second sub-slot (133), the wiring harness (2) comprises an outer sheath (21) and a wire core (23), the outer sheath (21) covers the outer circumferential side of the wire core (23), the first sub-slot (131) is used for the wiring harness (2) to pass through, and at least part of the side wall of the second sub-slot (133) is used for connecting with the wire core (23) of the wiring harness (2).

4. The busbar assembly (1) according to claim 3, characterized in that The width of the second sub-slot (133) is smaller than the width of the first sub-slot (131); and / or 5. The busbar assembly (1) according to claim 4, characterized in that The diameter of the wire core (23) ranges from 0.7 mm to 1.2 mm; and / or The thickness of the outer sheath (21) ranges from 0.20 mm to 0.24 mm; and / or The width of the first sub-slot (131) ranges from 1.0 mm to 1.9 mm; and / or The width of the second sub-slot (133) ranges from 0.7 mm to 1.2 mm. The extension direction of the second sub-slot (133) is the same as that of the first sub-slot (131).

6. The busbar assembly (1) according to claim 4, characterized in that The wiring portion (13) comprises a first sub-portion (134) and a second sub-portion (135), the first sub-portion (134) is connected between the main body (11) and the second sub-portion (135), wherein one of the first sub-portion (134) and the second sub-portion (135) is provided with the first sub-slot (131), and the other is provided with the second sub-slot (133).

7. The busbar assembly (1) according to claim 4, characterized in that The first sub-portion (134) comprises a first side wall (1341), a second side wall (1343) and a third side wall (1345), the first side wall (1341) and the third side wall (1345) are respectively connected to the opposite two ends of the second side wall (1343) to form the first sub-slot (131) and a first opening (1346) opposite to the second side wall (1343), and the second side wall (1343) is connected with the main body (11).

8. The busbar assembly (1) according to claim 7, characterized in that The included angle M1 between the third side wall (1345) and the second side wall (1343) ranges from 80 degrees to 90 degrees.

9. The busbar assembly (1) according to claim 8, characterized in that ​ 10. The busbar assembly (1) according to claim 8, characterized in that The first sub-part (134) further comprises a first limiting piece, at least one of the first side wall (1341) and the third side wall (1345) is provided with the first limiting piece, and at least part of the wire harness (2) is located between the first limiting piece and the second side wall (1343) when the wiring part (13) fixes the wire harness (2).

11. The busbar assembly (1) according to claim 7, characterized in that The second sub-part (135) comprises a fourth side wall (1351), a fifth side wall (1353) and a sixth side wall (1355), the fourth side wall (1351) and the sixth side wall (1355) are connected to opposite ends of the fifth side wall (1353) respectively to form the second sub-slot (133) and a second opening (1356) opposite to the fifth side wall (1353), and the fifth side wall (1353) is connected with the first sub-part (134).

12. The busbar assembly (1) according to claim 11, characterized in that The included angle M2 between the sixth side wall (1355) and the fifth side wall (1353) ranges from 70° to 90°.

13. The busbar assembly (1) according to claim 11, characterized in that The second sub-part (135) further comprises a second limiting piece, at least one of the fourth side wall (1351) and the sixth side wall (1355) is provided with the second limiting piece, and at least part of the wire harness (2) is located between the second limiting piece and the fifth side wall (1353) when the wiring part (13) fixes the wire harness (2).

14. The busbar assembly (1) according to any of claims 1 to 13, characterized in that The main body part (11) comprises a connecting sub-part (111) and a sunken sub-part (113) connected with each other, the connecting sub-part (111) is arranged and connected with the wiring part (13) along a first direction, the bottom wall (1131) of the sunken sub-part is arranged along a second direction with the connecting sub-part (111), the second direction has an included angle with the first direction, and the bottom wall (1131) of the sunken sub-part is used for connecting with the battery cell.

15. The busbar assembly (1) according to any of claims 1 to 13, characterized in that The busbar assembly (1) further comprises a material belt (30), the busbar (10) is a plurality of, and the plurality of busbars (10) are connected to the material belt (30) respectively.

16. The busbar assembly (1) according to claim 15, characterized in that In one of the busbars (10), the main body part (11) and the wiring part (13) are arranged along a first direction, a plurality of busbars (10) are arranged along a third direction, the third direction has an included angle with the first direction, and the wiring part (13) is connected between the main body part (11) and the material belt (30).

17. A CCS assembly (3) characterized in that, The CCS assembly (3) comprises a wire harness (2) and the busbar assembly (1) as claimed in any one of claims 1-16, and the wire harness (2) is fixed to the wiring part (13).

18. A battery pack (4) characterized by The CCS assembly (3) comprises: a battery cell (401); and the busbar assembly (1) as claimed in any one of claims 1-16 or the CCS assembly (3) as claimed in claim 17.

19. An electrical consumer (5), characterized in that The CCS assembly (3) comprises the busbar assembly (1) as claimed in any one of claims 1-16 or the CCS assembly (3) as claimed in claim 17 or the battery pack (4) as claimed in claim 18.

Images