Information acquisition assembly and battery pack

Abstract

The utility model relates to battery technical field discloses information collection subassembly and battery pack, information collection subassembly, include: wiring harness unit has a plurality of first branch wiring harness, insurance unit has first connecting portion, second connecting portion and main fuse, first connecting portion passes through main fuse and is electrically connected with second connecting portion, first connecting portion is used for with first branch wiring harness electric connection, and first locating structure is established on second connecting portion, busbar is used for with electric connection, and busbar has first cooperation structure, the utility model discloses sets up first locating structure on the second connecting portion of insurance unit, sets up first cooperation structure on busbar, when information collection subassembly assembly, through first locating structure and first cooperation structure positioning cooperation, can make insurance unit and busbar realize quick accurate positioning, can realize positioning through own structure, need not use tool fixture, can effectively save the step of clamping and dismounting, can speed up production rhythm and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to an information acquisition component and a battery pack. Background Technology The information acquisition component is a component in the battery pack used to collect the working information of the battery cells. Information acquisition components can be formed by combining rigid circuit boards and flexible circuit boards, or by combining main wiring harnesses and branch wiring harnesses. The information acquisition component mainly collects the basic data of the battery cells through its own sampling circuit. In actual operation, in order to improve the safety of the sampling circuit, a fuse structure is usually set on the sampling circuit of the information acquisition component. When a short circuit occurs in the sampling circuit, the circuit can be protected by blowing the fuse.

[0002] Currently, in information acquisition components that collect cell data through wiring harnesses, the fuse structure is usually located between the branch wiring harness and the busbar. The branch wiring harness is connected to the busbar through the fuse structure. When assembling the fuse structure and the busbar, operators usually need to use positioning fixtures to clamp and fix the fuse structure and the busbar before the connection work can be carried out. This assembly method has many steps and is time-consuming and labor-intensive, resulting in low production efficiency. Utility Model Content

[0003] This invention provides an information acquisition component and a battery pack to solve the problem that the assembly of existing information acquisition components is laborious and affects production efficiency.

[0004] In a first aspect, this utility model provides an information acquisition component, comprising: a wiring harness unit having a plurality of first branch wiring harnesses; a fuse unit having a first connecting part, a second connecting part and a main fuse, wherein the first connecting part is electrically connected to the second connecting part through the main fuse, the first connecting part is used for electrically connecting to the first branch wiring harnesses, and the second connecting part is provided with a first positioning structure; and a busbar for electrically connecting to a battery cell, wherein the busbar has a first mating structure for positioning and cooperating with the first positioning structure.

[0005] Beneficial effects: By setting a first positioning structure on the second connecting part of the safety unit and a first mating structure on the busbar, the safety unit and the busbar can be quickly and accurately positioned during the assembly of the information acquisition component through the positioning and mating of the first positioning structure and the first mating structure. Positioning can be achieved through its own structure without the need for tooling fixtures, which can effectively save the steps of clamping and disassembly, speed up the production cycle and improve production efficiency, and effectively solve the problem that the assembly of existing information acquisition components is laborious and affects production efficiency.

[0006] In one optional implementation, the first mating structure is a first positioning hole opened on the busbar, and the first positioning structure is inserted into the first positioning hole.

[0007] Beneficial effects: This type of first mating structure is simple, reliable and easy to manufacture. Positioning can be achieved by inserting the first positioning structure into the first positioning hole.

[0008] In one optional embodiment, the second connecting part is further provided with a limiting structure. The limiting structure is disposed on the outer wall of the first positioning structure. The limiting structure has a guide surface and a limiting surface. The guide surface is inclined relative to the through direction of the first positioning hole, and the limiting surface is used to lock and cooperate with the busbar.

[0009] Beneficial effects: After the first positioning structure is inserted into the first mating structure and the limiting surface of the limiting structure is locked with the busbar, the first positioning structure cannot be arbitrarily separated from the first mating structure, which can effectively improve the positioning reliability of the first positioning structure and the first mating structure.

[0010] In one alternative implementation, the information acquisition component has a first orientation; The fuse unit includes a fuse structure and a connecting piece. The fuse structure has a first connecting portion and a main fuse. The connecting piece has a second connecting portion and is electrically connected to the fuse structure. A portion of the connecting piece protrudes in a first direction to form a first positioning structure. The interior of the first positioning structure has a cavity.

[0011] Beneficial effects: This type of first positioning structure meets the positioning requirements while being relatively lightweight, which can reduce the weight of the connecting piece and the amount of material used in its manufacturing.

[0012] In one optional implementation, the information acquisition component also has a second direction and a third direction, the first direction, the second direction and the third direction are perpendicular to each other, and the second connecting part is also provided with a through groove, the through groove is located on the side of the first positioning structure away from its own protruding direction, and the through groove penetrates the first positioning structure along the third direction. The first positioning structure forms mating surfaces on the outer walls of both sides along the second direction, and at least one mating surface is provided with a limiting structure.

[0013] Beneficial effects: The through groove not only facilitates processing and manufacturing, but also makes it easier for the parts of the first positioning structure located on the two side walls of the through groove to swing in opposite directions, which can effectively improve the ease of disassembly of the connecting piece.

[0014] In one optional embodiment, along the second direction, the width of the first positioning structure is smaller than the width of the first positioning hole, and the sum of the widths of the first positioning structure and the limiting structure is greater than the width of the first positioning hole. Along the first direction, the height of the first positioning structure protruding from the connecting piece is less than or equal to the depth of the first positioning hole.

[0015] Beneficial effects: The first positioning structure is compact yet can achieve reliable positioning results.

[0016] In one optional embodiment, the fuse unit further includes a first spare fuse and a second spare fuse. The first spare fuse is connected to the first connecting portion and has a first spare solder joint. The second spare fuse is connected to the second connecting portion and has a second spare solder joint. The first spare solder joint and the second spare solder joint are spaced apart.

[0017] Beneficial effect: When the main fuse blows and cannot be used, the first spare solder joint can be connected to the second spare solder joint to make the spare fuse work, so that the fuse unit can continue to be used, which can effectively save maintenance costs.

[0018] In one alternative embodiment, the information acquisition component further includes a temperature detection structure, and the wiring harness unit also has a plurality of second branch wiring harnesses electrically connected to the temperature detection structure. The temperature detection structure has a second positioning structure, and the busbar has a second mating structure for positioning and cooperating with the second positioning structure.

[0019] Beneficial effects: By positioning and cooperating with the second positioning structure and the second mating structure, the temperature detection structure and the busbar can be quickly positioned and installed.

[0020] In one optional embodiment, the information acquisition component further includes an isolation plate with a connecting hole, through which the busbar is electrically connected to the corresponding battery cell. The isolation plate is provided with a third positioning structure, and the busbar has a third mating structure for positioning and cooperating with the third positioning structure.

[0021] Beneficial effects: Through the positioning and cooperation of the third positioning structure and the third mating structure, the busbar can be quickly and accurately installed at the designated position of the isolation plate.

[0022] Secondly, this utility model also provides a battery pack, which includes: a shell having an internal cavity; a battery cell assembly disposed in the cavity; and the aforementioned information acquisition component disposed in the cavity and electrically connected to the battery cell assembly. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a partial schematic diagram of an information acquisition component according to an embodiment of the present utility model; Figure 2 for Figure 1A partial schematic diagram of the wiring harness unit and the safety unit of the information acquisition component shown; Figure 3 for Figure 2 An enlarged schematic diagram of point A of the wiring harness unit and the fuse unit shown; Figure 4 for Figure 3 The diagram shows an explosion of the fuse unit, temperature detection structure, and busbar. Figure 5 for Figure 4 A three-dimensional schematic diagram of the busbar shown; Figure 6 for Figure 5 The front view of the bus shown; Figure 7 for Figure 6 An enlarged schematic diagram of point B on the busbar shown; Figure 8 for Figure 5 The exploded view of the busbar and the isolation plate shown. Figure 9 This is an exploded view of the information acquisition component and cell component of a battery pack according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures: 1. Wire harness unit; 101. First branch wire harness; 102. Second branch wire harness; 2. Insurance unit; 201. Fuse structure; 2011. First connecting part; 2012. Main fuse; 2013. First spare fuse; 20131. First spare solder joint; 2014. Second spare fuse; 20141. Second spare solder joint; 202. Connecting piece; 2021. Second connecting part; 2022. First positioning structure; 20221. Mating surface; 2023. Limiting structure; 20231. Guide surface; 20232. Limiting surface; 2024. Through groove; 3. Busbar; 301. First mating structure; 302. Second mating structure; 303. Third mating structure; 4. Temperature detection structure; 401. Second positioning structure; 5. Isolation plate; 501. Connecting hole; 502. Third positioning structure; 6. Battery cell assembly; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The following is combined Figures 1 to 9 The following describes embodiments of the present invention.

[0028] According to an embodiment of the present invention, an information acquisition component is provided, comprising: a wiring harness unit 1, a safety unit 2, and a busbar 3.

[0029] The wire harness unit 1 has a plurality of first branch wire harnesses 101; The insurance unit 2 has a first connecting part 2011, a second connecting part 2021 and a main fuse 2012. The first connecting part 2011 is electrically connected to the second connecting part 2021 through the main fuse 2012. The first connecting part 2011 is used to be electrically connected to the first branch wire harness 101. The second connecting part 2021 is provided with a first positioning structure 2022. Busbar 3 is used for electrical connection with battery cells. Busbar 3 has a first mating structure 301 for positioning and engaging with the first positioning structure 2022.

[0030] The information acquisition component of this embodiment has a first positioning structure 2022 on the second connecting part 2021 of the safety unit 2 and a first mating structure 301 on the busbar 3. When the information acquisition component is assembled, the safety unit 2 and the busbar 3 can be positioned and mated by the first positioning structure 2022 and the first mating structure 301, which can achieve fast and accurate positioning. Positioning can be achieved by its own structure without the need for tooling fixtures, which can effectively save the steps of clamping and disassembly, speed up the production cycle and improve production efficiency, and effectively solve the problem that the assembly of existing information acquisition components is laborious and affects production efficiency.

[0031] Specifically, there is no limitation on the specific structural form of the first positioning structure 2022 and the first mating structure 301. They can be a positioning form in which the positioning post and the positioning hole are inserted, or a positioning form in which two snap-fit ​​pieces are snapped together and fixed, as long as they can fix the relative position of the safety unit 2 and the busbar 3.

[0032] In related technologies, battery packs typically employ both active and passive balancing methods through sampling circuits to effectively control voltage and capacity differences between cells. In sampling methods combining rigid and flexible circuit boards, the fuses are formed by etching lines. These fuses have high internal resistance and poor current carrying capacity, only meeting the requirements of passive balancing and not active balancing. In sampling methods combining main and branch wiring harnesses, while the lower internal resistance of the harnesses allows for active balancing, it's difficult to add fuses with high rated current that can blow normally in the event of a short circuit, thus failing to provide effective protection.

[0033] The information acquisition component of this embodiment uses an independent fuse unit 2 between the branch harness and the busbar. The fuse of the fuse unit 2 has a large rated current and can also blow normally in the event of a short circuit. This allows the internal resistance of the sampling circuit in the information acquisition component to meet the internal resistance requirements of the equalization circuit, and also allows the sampling circuit to have short circuit protection.

[0034] In one embodiment, such as Figure 4 As shown, the first mating structure 301 is the first positioning hole opened on the busbar 3, and the first positioning structure 2022 is inserted into the first positioning hole. This type of first mating structure 301 is simple, reliable and easy to process and manufacture. Positioning can be achieved by inserting the first positioning structure 2022 into the first positioning hole.

[0035] It is understood that, as an alternative implementation, the first mating structure 301 is a slot-shaped structure opened on the busbar 3, as long as it can be inserted into the first positioning structure 2022.

[0036] It should be noted that after the first positioning structure 2022 is inserted and engaged with the first positioning hole, the first positioning structure 2022 can only move along the extension direction of the first positioning hole, but cannot move along the plane where the first positioning hole is located, thus realizing the basic positioning function. At this time, the subsequent assembly and connection steps can be carried out.

[0037] In one embodiment, such as Figure 4 and Figure 5As shown, the second connecting part 2021 is also provided with a limiting structure 2023. The limiting structure 2023 is disposed on the outer wall of the first positioning structure 2022. The limiting structure 2023 has a guide surface 20231 and a limiting surface 20232. The guide surface is inclined relative to the through direction of the first positioning hole. The limiting surface 20232 is used to lock and cooperate with the busbar 3. After the first positioning structure 2022 is inserted into the first mating structure 301, and the limiting surface 20232 of the limiting structure 2023 locks and cooperates with the busbar 3, the first positioning structure 2022 cannot be arbitrarily disengaged from the first mating structure 301, which can effectively improve the positioning reliability of the first positioning structure 2022 and the first mating structure 301.

[0038] Specifically, such as Figure 7 As shown, the limiting structure 2023 is a protrusion structure set on the outer wall of the first positioning structure 2022. During the process of the first positioning structure 2022 being inserted into the first positioning hole, the first positioning hole will move along the guide surface 20231. When the limiting structure 2023 completely passes through the first positioning hole, and the first positioning structure 2022 comes out of the first positioning hole in the opposite direction, the wall surface of the periphery of the first positioning hole will abut against the limiting surface 20232. At this time, the limiting structure 2023 will prevent the first positioning structure 2022 from coming out of the first positioning hole.

[0039] In one embodiment, such as Figure 5 and Figure 6 As shown, the information acquisition component has a first direction X; The safety unit 2 includes a safety structure 201 and a connecting piece 202. The safety structure 201 has a first connecting portion 2011 and a main fuse 2012. The connecting piece 202 has a second connecting portion 2021 and is electrically connected to the safety structure 201. A portion of the connecting piece 202 protrudes toward the first direction X to form a first positioning structure 2022. The first positioning structure 2022 has a cavity inside. This type of first positioning structure 2022 meets the positioning requirements while being lightweight. It can reduce the weight of the connecting piece 202 and also reduce the amount of material used in the manufacturing of the connecting piece 202.

[0040] The shape of the cavity is not limited; it can be an open cavity or a closed cavity, as long as it can reduce the weight of the connecting piece 202.

[0041] It is understandable that, as an alternative implementation, if the strength requirement of the first positioning structure 2022 is high, the first positioning structure 2022 can also be a solid structure.

[0042] In one embodiment, such as Figures 5 to 7As shown, the information acquisition component also has a second direction Y and a third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other. The second connecting part 2021 is also provided with a through groove 2024. The through groove 2024 is located on the side of the first positioning structure 2022 away from its own protruding direction. The through groove 2024 penetrates the first positioning structure 2022 along the third direction Z. The first positioning structure 2022 forms mating surfaces 20221 on the outer walls of both sides along the second direction Y, and at least one mating surface 20221 is provided with a limiting structure 2023.

[0043] This type of through-slot 2024 is not only easy to process and manufacture, but also allows the two side walls of the through-slot 2024 to swing towards each other. When the first positioning structure 2022 is inserted into the first mating structure 301, the limiting structure 2023 prevents the first positioning structure 2022 from detaching at will. When it is necessary to remove the first positioning structure 2022, the first positioning structure 2022 can be clamped along the second direction Y, so that the two side walls of the through-slot 2024 move towards each other and produce slight deformation. At this time, the limiting structure 2023 can pass smoothly through the first mating structure 301, so that the first positioning structure 2022 can be pulled out from the first mating structure 301, which can effectively improve the disassembly convenience of the connecting piece 202.

[0044] The first direction refers to Figure 2 The direction of the "X" pointed to by the middle arrow, the second direction refers to Figure 2 The direction of the "Y" indicated by the middle arrow, the third direction refers to... Figure 2 The direction of "Z" indicated by the middle arrow is perpendicular to each other in the first direction X, the second direction Y, and the third direction Z. It should be understood that the introduction of the concepts of the first direction X, the second direction Y, and the third direction Z, as well as symmetrical axes, is merely for the convenience of describing spatial relationships and should not be construed as limiting the scope of the embodiments of this application. Therefore, the perpendicular relationship between the first direction X, the second direction Y, and the third direction Z can be interpreted, depending on the actual technical scenario, as the first direction X, the second direction Y, and the third direction Z representing three mutually perpendicular directions in three-dimensional space, or reasonably interpreted as a nearly perpendicular relationship between the first direction X, the second direction Y, and the third direction Z, for example, the included angles between the first direction X, the second direction Y, and the third direction Z are all within the range of 85°-95°… Any technical solution that conforms to the spirit of this utility model or achieves the technical effects described in this utility model can be considered to fall within the scope defined by the appended claims.

[0045] Specifically, the space inside the through groove 2024 is the cavity inside the first positioning structure 2022. There is no limitation on the forming method of the first positioning structure 2022. It can be formed by machining or by bending the sheet metal. The choice can be flexible according to the requirements.

[0046] Furthermore, when clamping the first positioning structure 2022 along the second direction Y, only a slight deformation of the first positioning structure 2022 is needed to pull it out. At this time, the deformation of the first positioning structure 2022 is an elastic deformation, and it can return to its original state when the first positioning structure 2022 is released.

[0047] In one embodiment, such as Figures 5 to 7 As shown, along the second direction Y, the width of the first positioning structure 2022 is smaller than the width of the first positioning hole, and the sum of the widths of the first positioning structure 2022 and the limiting structure 2023 is greater than the width of the first positioning hole; along the first direction X, the height of the first positioning structure 2022 protruding from the connecting piece 202 is less than or equal to the depth of the first positioning hole. This type of first positioning structure 2022 is compact while achieving a reliable positioning effect.

[0048] In one alternative embodiment, such as Figures 5 to 7 As shown, along the second direction Y, the width D1 of the first positioning structure 2022 can range from 1mm to 10mm, and the value of D1 can be any value among 1mm, 2mm, 3mm, 5mm, 8mm, and 10mm or a value between any two values; along the first direction X, the height D2 of the first positioning structure 2022 protruding from the connecting piece 202 can range from 1mm to 10mm, and the value of D2 can be any value among 1mm, 2mm, 3mm, 5mm, 8mm, and 10mm or a value between any two values.

[0049] It should be noted that the above dimensions are only for illustrative purposes of one embodiment. If needed, dimensions beyond the above range can be selected according to the actual application scenario, as long as the positioning effect can be achieved.

[0050] Specifically, such as Figure 3 and Figure 4 As shown, the first positioning structure 2022 has a rectangular cross-sectional shape along the direction perpendicular to the insertion, and the first positioning hole is a rectangular elongated hole. This type of first positioning structure 2022 and first positioning hole can prevent relative rotation between them after insertion.

[0051] Preferably, in order to ensure the limiting reliability of the limiting structure 2023, the limiting structure 2023 is provided on both mating surfaces 20221 of the first positioning structure 2022.

[0052] In one embodiment, such as Figure 5 As shown, the fuse unit 2 also has a first spare fuse 2013 and a second spare fuse 2014. The first spare fuse 2013 is connected to the first connecting part 2011 and has a first spare solder joint 20131. The second spare fuse 2014 is connected to the second connecting part 2021 and has a second spare solder joint 20141. The first spare solder joint 20131 and the second spare solder joint 20141 are spaced apart.

[0053] When the main fuse 2012 blows and cannot be used, the first spare solder joint 20131 and the second spare solder joint 20141 can be connected to turn on the spare fuse, so that the fuse unit 2 can continue to be used, which can effectively save maintenance costs.

[0054] Preferably, the safety structure 201 is a flexible circuit board etching safety device, and the safety structure 201 is a double-sided or single-sided double-contact board; the connecting piece 202 is a metal connecting piece, preferably a nickel sheet.

[0055] The specific dimensions of the main fuse 2012 are not limited, as long as it can meet the overcurrent requirements of the corresponding current value and provide fuse protection.

[0056] In one embodiment, such as Figure 2 and Figure 4 As shown, the information acquisition component also includes a temperature detection structure 4, and the wiring harness unit 1 also has several second branch wiring harnesses 102. The second branch wiring harnesses 102 are electrically connected to the temperature detection structure 4. The temperature detection structure 4 has a second positioning structure 401, and the busbar 3 has a second mating structure 302 for positioning and cooperating with the second positioning structure 401. Through the positioning and cooperation of the second positioning structure 401 and the second mating structure 302, the temperature detection structure 4 and the busbar 3 can be quickly positioned and installed.

[0057] The specific structural forms of the second positioning structure 401 and the second mating structure 302 can be referred to the first positioning structure 2022 and the first mating structure 301, which will not be elaborated on here.

[0058] In one embodiment, such as Figure 8 As shown, the information acquisition component also includes an isolation plate 5. The isolation plate 5 has a connecting hole 501. The busbar 3 is electrically connected to the corresponding battery cell through the connecting hole 501. The isolation plate 5 has a third positioning structure 502. The busbar 3 has a third mating structure 303 for positioning and cooperating with the third positioning structure 502. Through the positioning and cooperation of the third positioning structure 502 and the third mating structure 303, the busbar can be quickly and accurately installed at the designated position of the isolation plate 5.

[0059] Specifically, such as Figure 4As shown, the second mating structure 302 is the second positioning hole on the busbar 3, and the third mating structure 303 is the third positioning hole on the busbar 3.

[0060] Preferably, the third positioning structure 502 is a riveting post. After the third positioning structure 502 passes through the third positioning hole, it can be connected to the busbar 3 through a riveting step.

[0061] According to an embodiment of the present invention, another aspect provides a battery pack, which includes: a housing, a cell assembly 6, and the aforementioned information acquisition component, wherein the housing has an internal cavity; the cell assembly 6 is disposed in the cavity; and the information acquisition component is disposed in the cavity and electrically connected to the cell assembly 6.

[0062] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An information acquisition component, characterized in that, include: The wire harness unit (1) has a plurality of first branch wire harnesses (101); The fuse unit (2) has a first connecting part (2011), a second connecting part (2021) and a main fuse (2012). The first connecting part (2011) is electrically connected to the second connecting part (2021) through the main fuse (2012). The first connecting part (2011) is used to be electrically connected to the first branch harness (101). The second connecting part (2021) is provided with a first positioning structure (2022). Bus (3) for electrical connection with battery cell, said bus (3) having a first mating structure (301) for positioning and engaging with the first positioning structure (2022).

2. The information acquisition component according to claim 1, characterized in that, The first mating structure (301) is the first positioning hole opened on the busbar (3), and the first positioning structure (2022) is inserted into the first positioning hole.

3. The information acquisition component according to claim 2, characterized in that, The second connecting part (2021) is also provided with a limiting structure (2023). The limiting structure (2023) is disposed on the outer wall of the first positioning structure (2022). The limiting structure (2023) has a guide surface (20231) and a limiting surface (20232). The guide surface is inclined relative to the through direction of the first positioning hole. The limiting surface (20232) is used to lock and cooperate with the busbar (3).

4. The information acquisition component according to claim 3, characterized in that, The information acquisition component has a first direction (X); The safety unit (2) includes a safety structure (201) and a connecting piece (202). The safety structure (201) has a first connecting portion (2011) and a main fuse (2012). The connecting piece (202) has a second connecting portion (2021) and is electrically connected to the safety structure (201). A portion of the connecting piece (202) protrudes toward the first direction (X) to form the first positioning structure (2022). The first positioning structure (2022) has a cavity inside.

5. The information acquisition component according to claim 4, characterized in that, The information acquisition component also has a second direction (Y) and a third direction (Z), the first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other, and the second connecting part (2021) is also provided with a through groove (2024), the through groove (2024) is located on the side of the first positioning structure (2022) away from its own protrusion direction, and the through groove (2024) passes through the first positioning structure (2022) along the third direction (Z); The first positioning structure (2022) forms mating surfaces (20221) on the outer walls of both sides along the second direction (Y), and at least one of the mating surfaces (20221) is provided with the limiting structure (2023).

6. The information acquisition component according to claim 5, characterized in that, Along the second direction (Y), the width of the first positioning structure (2022) is smaller than the width of the first positioning hole, and the sum of the widths of the first positioning structure (2022) and the limiting structure (2023) is greater than the width of the first positioning hole; Along the first direction (X), the height dimension of the first positioning structure (2022) protruding from the connecting piece (202) is less than or equal to the depth of the first positioning hole.

7. The information acquisition component according to any one of claims 1 to 6, characterized in that, The fuse unit (2) also has a first spare fuse (2013) and a second spare fuse (2014). The first spare fuse (2013) is connected to the first connecting part (2011) and has a first spare solder joint (20131). The second spare fuse (2014) is connected to the second connecting part (2021) and has a second spare solder joint (20141). The first spare solder joint (20131) and the second spare solder joint (20141) are spaced apart.

8. The information acquisition component according to any one of claims 1 to 6, characterized in that, The information acquisition component also includes a temperature detection structure (4), and the wiring harness unit (1) also has several second branch wiring harnesses (102). The second branch wiring harnesses (102) are electrically connected to the temperature detection structure (4). The temperature detection structure (4) has a second positioning structure (401), and the busbar (3) has a second mating structure (302) for positioning and mating with the second positioning structure (401).

9. The information acquisition component according to any one of claims 1 to 6, characterized in that, The information acquisition component also includes an isolation plate (5), the isolation plate (5) is provided with a connecting hole (501), the busbar (3) is electrically connected to the corresponding battery cell through the connecting hole (501), the isolation plate (5) is provided with a third positioning structure (502), and the busbar (3) has a third mating structure (303) for positioning and mating with the third positioning structure (502).

10. A battery pack, characterized in that, include: The shell has an internal cavity; The battery cell assembly (6) is disposed in the receiving cavity; The information acquisition component according to any one of claims 1 to 9 is disposed in the receiving cavity and electrically connected to the battery cell assembly (6).

Images