Battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, and discloses a battery pack and electric equipment, the battery pack has a first direction and a second direction which are intersected, and the battery pack comprises a box body; an accommodating cavity is defined by the cover plate and the box body; the multiple battery packs are arranged in the containing cavity and arranged in the first direction, each battery pack comprises multiple batteries, the multiple batteries are arranged in the second direction, and each battery comprises a top cover and two pole columns arranged in the first direction at intervals; the isolation plate is connected with the battery pack and comprises a first mounting part and a second mounting part which are connected, the first mounting part is connected with the poles, the second mounting part is positioned between the two poles of the battery, and the second mounting part protrudes towards the battery pack relative to the first mounting part; and the information acquisition assembly comprises a main body part and an electric signal acquisition part which are connected and is arranged between the isolation plate and the battery pack, and the electric signal acquisition part is arranged between the isolation plate and the pole. The information acquisition assembly is clamped through the isolation plate and the battery pack, the position of the information acquisition assembly is fixed, and the accuracy of signal data acquisition is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to battery packs and electrical equipment. Background Technology

[0002] In related technologies, battery packs typically include a battery and an information acquisition component. The information acquisition component is used to collect data from the battery, and it needs to be effectively fixed to ensure the stability and accuracy of the data collection. However, because the information acquisition component is not easy to fix, it is prone to vibration relative to the battery, which affects the accuracy of the collected data. Adding additional fixing parts would increase the number of components and the amount of operation. How to better achieve effective fixation of the information acquisition component has been a concern in the industry. Utility Model Content

[0003] In view of this, the present invention provides a battery pack to solve the problems of poor fixation and easy vibration of the information acquisition component.

[0004] In a first aspect, this utility model provides a battery pack having three intersecting directions: a first direction, a second direction, and a third direction. The pack includes: a housing with an opening; a cover plate connected to the housing and sealing the opening, the cover plate and the housing forming a receiving cavity; multiple battery packs disposed within the receiving cavity, the battery packs arranged along the first direction, each battery pack including multiple batteries, the batteries arranged along the second direction, each battery including a top cover and two terminals disposed along the first direction, the two terminals being disposed on the top cover; and a separator plate connected to the side of the battery where the terminals are disposed, the separator plate covering... The battery pack includes a plurality of first mounting portions and a plurality of second mounting portions arranged alternately along the first direction, with adjacent first mounting portions and second mounting portions connected. The first mounting portions are connected to the terminals, and the second mounting portions are located between two terminals of the same battery along the first direction. The second mounting portions protrude from the first mounting portions along the third direction toward the battery pack. The information acquisition component includes a main body and an electrical signal acquisition portion connected to the main body. The main body is located between the second mounting portions and the battery pack, and the electrical signal acquisition portion is located between the first mounting portions and the top cover.

[0005] Beneficial effects: By clamping the information acquisition component between the first mounting part of the isolation plate and the top cover, the information acquisition component is closer to the top cover, facilitating contact between the electrical signal acquisition part and the top cover. This makes it easier for the information acquisition component to acquire parameters such as voltage and current of the battery pack. Furthermore, the isolation plate applies pressure to the information acquisition component, fixing its position and reducing the probability of vibration, thus improving the relative positional stability between the information acquisition component and the top cover. Additionally, the first mounting part positions the electrical signal acquisition part and the terminal post. By setting the second mounting part to protrude towards the battery pack relative to the first mounting part, the height difference between the terminal post and the top cover of the battery can be compensated, reducing the distance between the top cover and the second mounting part. This ensures that the second mounting part can press the information acquisition component firmly against the top cover, improving the fixing effect of the isolation plate on the information acquisition component.

[0006] In one alternative embodiment, the main body extends along the first direction and is located between the terminals of two adjacent batteries along the second direction.

[0007] Beneficial effects: It can avoid contact between the main body and the terminal post, prevent interference between the main body and the terminal post, and this arrangement makes it easier for the main body to simultaneously acquire electrical signals from the battery terminals on both sides of the main body.

[0008] In one optional embodiment, the second mounting portion includes: a plurality of bridging sub-portions extending along the first direction, one end of each bridging sub-portion being connected to one of the first mounting portions adjacent to the second mounting portion, and the other end of each bridging sub-portion being connected to another of the first mounting portions adjacent to the second mounting portion, the main body being disposed between the bridging sub-portions and the battery pack.

[0009] Beneficial effects: The bridging sub-section can press the main body onto the battery pack, reducing the probability of the main body shaking, and can also separate the main body and the cover plate, ensuring that there is no electrical connection between the information acquisition component and the cover plate.

[0010] In an optional embodiment, the second mounting portion further includes: two boundary sub-parts extending along the first direction, one end of each boundary sub-part being connected to one of the first mounting portions adjacent to the second mounting portion, and the other end of each boundary sub-part being connected to another first mounting portion adjacent to the second mounting portion, wherein the two boundary sub-parts are respectively disposed on both sides of the second mounting portion in the second direction, and the bridging sub-part is disposed between the two boundary sub-parts in the second direction; a fixing sub-part, one end of which is connected to one of the boundary sub-parts, and in the second direction, the fixing sub-part extends toward the other boundary sub-part and connects to a plurality of the bridging sub-parts, and the other end of which is connected to the other boundary sub-part; the fixing sub-part is provided with a positioning post on the side facing the battery pack, and the main body is provided with a positioning hole corresponding to the position of the positioning post, wherein the positioning post is inserted into the positioning hole.

[0011] Beneficial effects: It can achieve positioning between the information acquisition component and the isolation plate, and the information acquisition component and the isolation plate are not prone to relative shaking. The positioning accuracy between the information acquisition component, the isolation plate and the battery pack is high.

[0012] In one optional embodiment, the second mounting portion has a through hole extending in the third direction, and the information acquisition component further includes a temperature acquisition portion connected to the main body; the isolation plate includes a pressure plate, one end of which is connected to the second mounting portion, and the temperature acquisition portion passes through the through hole and is located between the top cover and the other end of the pressure plate.

[0013] Beneficial effects: It can fix the relative position between the temperature acquisition unit and the top cover, prevent the temperature acquisition unit from separating from the top cover, and improve the reliability of temperature acquisition by the temperature acquisition unit.

[0014] In one optional embodiment, the battery pack further includes: a slave control module disposed within the receiving cavity and located on one side of the battery pack along the first direction; the information acquisition component extends along the first direction and is connected to the slave control module.

[0015] Beneficial effects: The slave control module can transmit the electrical signals collected by the information acquisition component to the battery management system, thereby realizing the control of the battery pack.

[0016] In one optional embodiment, the battery pack further includes: a busbar extending along the first direction, wherein the first mounting portion has a positioning groove on the side opposite to the battery pack, and the busbar is disposed in the positioning groove; a through hole is provided on the bottom surface of the positioning groove, one end of the busbar is connected to the terminal of the battery through the through hole, and the other end of the busbar is connected to the terminal of the adjacent battery along the first direction through the through hole, and the polarity is opposite to that of the terminal connected to both ends of the busbar.

[0017] Beneficial effects: The positioning groove can fix the busbar, ensure the reliability of the connection between the busbar and the pole, and reduce the size of the busbar protruding from the isolation plate, which can reduce the probability of contact between the busbar and the cover plate.

[0018] In one optional embodiment, the bottom surface of the positioning groove is provided with a notch, the notch is disposed close to the side wall of the positioning groove near the second mounting part, the electrical signal acquisition part passes through the notch and is connected to the main body, and the electrical signal acquisition part is disposed between the top cover and the busbar, and the electrical signal acquisition part is electrically connected to the busbar.

[0019] Beneficial effects: The electrical signal acquisition unit does not need to avoid the groove wall of the positioning slot, reducing the number of bends of the electrical signal acquisition unit. The electrical signal acquisition unit and the notch can play a positioning role, improving positioning accuracy.

[0020] In one optional embodiment, the information acquisition component includes a plurality of electrical signal acquisition units, which are alternately arranged on opposite sides of the main body in the second direction.

[0021] Beneficial effect: It can collect electrical signals from two adjacent battery columns using a single information acquisition component, reducing the number of parts.

[0022] Secondly, this utility model provides an electrical device, including the battery pack described in any one of the first aspects.

[0023] Beneficial effects: The electrical equipment of this utility model, through the battery pack described in the first aspect, can realize the positioning between the information acquisition component and the battery, thereby improving the reliability of electrical signal detection. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the battery pack structure according to an embodiment of the present invention;

[0026] Figure 2 This is an exploded view of the battery pack according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram showing the connection of the battery pack, information acquisition component, and isolation plate according to an embodiment of the present invention;

[0028] Figure 4 for Figure 3 Enlarged view of a portion of region A in the middle;

[0029] Figure 5 This is an exploded view of the battery pack, information acquisition component, and isolation plate according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram showing the connection between the battery pack and the information acquisition component in an embodiment of the present invention;

[0031] Figure 7 for Figure 6 Enlarged view of a portion of region B in the middle;

[0032] Figure 8 This is a schematic diagram illustrating the cooperation between the isolation plate and the information acquisition component in an embodiment of this utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the information acquisition component according to an embodiment of the present utility model;

[0034] Figure 10 This is a schematic diagram of the battery structure according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Battery pack;

[0037] 100. Box body; 101. Receiving cavity; 102. Cover plate;

[0038] 200. Battery pack; 210. Battery; 211. Terminal post; 212. Top cover; 213. Insulating layer; 214. Window area;

[0039] 300. Isolation plate; 310. First mounting part; 320. Second mounting part; 321. Hole; 324. Boundary sub-part; 325. Bridging sub-part; 326. Fixing sub-part; 330. Positioning groove; 334. Notch; 335. Through hole; 340. Pressure plate; 350. Elastic element;

[0040] 400. Information acquisition component; 402. Temperature acquisition unit; 403. Electrical signal acquisition unit; 404. Main body;

[0041] 600, Slave control module; 700, Busbar; 800, Pressure strip; 900, Insulating strip;

[0042] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0043] 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.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In the description of this utility model, "a plurality of" means two or more. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] The following is combined with Figures 1-10 The embodiments of the present invention are described as shown.

[0048] According to an embodiment of the present invention, in a first aspect, a battery pack 1 is provided. To facilitate the description of the solutions provided in the various embodiments of this application, it can be agreed that the battery pack 1 has a first direction X, a second direction Y, and a third direction Z that intersect each other in pairs. It should be understood that the introduction of the first direction X, the second direction Y, and the third direction Z intersecting each other in pairs is to more clearly describe and illustrate the three-dimensional structure of the battery pack 1 and the electrical equipment in the specific solutions provided in the various embodiments of this application, as well as the positions and connections between the components, and should not be considered as constituting any substantial limitation on the technical solutions protected by this application. For those skilled in the art, the intersecting directions can be understood as the first direction X, the second direction Y, and the third direction Z being perpendicular to each other, or nearly perpendicular to each other, or having an angle greater than 85° between them. Those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations all fall within the scope defined by the appended claims, even if the first direction X, the second direction Y, and the third direction Z are not strictly intersecting each other in these modifications and variations. The battery pack 1 includes a housing 100, a cover plate 102, multiple battery packs 200, an isolation plate 300, and an information acquisition component 400.

[0049] The housing 100 has an opening 103. A cover 102 is connected to the housing 100 and covers the opening 103. The cover 102 and the housing 100 enclose a receiving cavity 101. Multiple battery packs 200 are located in the receiving cavity 101. The multiple battery packs 200 are arranged along a first direction X. Each battery pack 200 includes multiple batteries 210. The multiple batteries 210 are arranged along a second direction Y. Each battery 210 includes two terminals 211 spaced apart along the first direction X. Each battery 210 also includes a top cover 212, on which the two terminals 211 are disposed.

[0050] The separator 300 is connected to the side of the battery 210 where the terminal post 211 is provided. That is, the separator 300 is located between the battery 210 and the cover plate 102. The separator 300 includes a plurality of first mounting portions 310 and a plurality of second mounting portions 320 arranged alternately along the first direction X. Adjacent first mounting portions 310 and second mounting portions 320 are connected. The first mounting portion 310 is connected to the terminal post 211. The second mounting portion 320 is located between the two terminal posts 211 of the same battery 210 along the first direction X. The second mounting portion 320 protrudes relative to the first mounting portion 310 in the direction of the third direction Z toward the battery pack 200.

[0051] The information acquisition component 400 includes a main body 404 and an electrical signal acquisition unit 403 connected to the main body 404. The main body 404 is located between the second mounting part 320 and the battery pack 200, and the electrical signal acquisition unit 403 is located between the first mounting part 310 and the top cover 212. The electrical signal acquisition unit 403 is electrically connected to the terminal post 211 and is used to acquire information such as the voltage and current of the battery pack 200. Furthermore, the information acquisition component 400 can be a flexible printed circuit (FPC), and the electrical signal acquisition unit 403 can include acquisition elements such as a voltage sensor or a current sensor. A voltage sensor can be used to acquire the voltage (potential) information of the battery pack 200, and a current sensor can be used to acquire the current information of the battery pack 200.

[0052] For example, the separator 300 can be made of an insulating material, such as insulating plastic. The separator 300 can separate the battery pack 200 from the cover plate 102, preventing electrical connection between the battery pack 200 and the cover plate 102, preventing the housing 100 from becoming energized, and improving the safety of the battery pack 1. Furthermore, the cavity 101 can be filled with adhesive to improve the structural strength of the battery pack 1.

[0053] The main body 404 of the information acquisition component 400 is clamped between the first mounting part 310 of the isolation plate 300 and the top cover 212 of the battery 210. On the one hand, the information acquisition component 400 is closer to the top cover 212, which facilitates the contact between the electrical signal acquisition part 403 and the top cover 212, thereby facilitating the information acquisition component 400 to acquire parameter information such as voltage and current of the battery pack 200. On the other hand, the isolation plate 300 can apply pressure to the information acquisition component 400, fix the position of the information acquisition component 400, reduce the vibration probability of the information acquisition component 400, and improve the relative positional stability between the information acquisition component 400 and the top cover 212, thereby improving the reliability of data acquisition.

[0054] Since the terminal post 211 protrudes from the top cover 212 of the battery 210 along the third direction Z, by setting the second mounting part 320 to protrude relative to the first mounting part 310 along the third direction Z toward the battery pack 200, there is a space between the first mounting part 310 and the top cover 212 to accommodate the terminal post 211. The separator plate 300 can be located between the terminal post 211 and the cover plate 102, thereby preventing the terminal post 211 from contacting the cover plate 102. Furthermore, the second mounting part 320 is closer to the top cover 212, which can press the main body 404 tightly against the battery 210, more effectively fixing the position of the main body 404 and the battery 210, and preventing the information acquisition component 400 from vibrating.

[0055] Specifically, the second mounting portion 320 protrudes at a dimension H relative to the first mounting portion 310 toward the battery pack 200, which is not less than 2 mm and not more than 4 mm. H can be 2 mm, 2.5 mm, 3 mm, 3.5 mm, or 4 mm.

[0056] When H is less than 2mm, the protrusion of the second mounting part 320 relative to the first mounting part 310 in the direction towards the battery pack 200 may be smaller than the height of the terminal post 211, resulting in a large gap between the second mounting part 320 and the top cover 212, making it impossible to press the information acquisition component 400 tightly against the battery pack 200; when H is greater than 4mm, the protrusion of the second mounting part 320 relative to the first mounting part 310 in the direction towards the battery pack 200 is too large, resulting in a small gap between the second mounting part 320 and the top cover 212, which may cause the first mounting part 310 to separate from the terminal post 211.

[0057] By setting H to be no less than 2mm and no more than 4mm, the distance between the second mounting part 320 and the top cover 212 can be moderate, roughly equivalent to the height of the pole post 211. This ensures that the information acquisition component 400 is pressed tightly against the battery pack 200 without causing the first mounting part 310 to separate from the pole post 211.

[0058] Please see Figure 7 The main body 404 extends along the first direction X and is located between the pole posts 211 of two adjacent batteries 210 along the second direction Y.

[0059] In this case, the main body 404 and the pole post 211 can be arranged at intervals along the second direction Y. That is, the size of the main body 404 along the second direction Y can be smaller than the distance between two adjacent pole posts 211.

[0060] This effectively avoids contact between the main body 404 and the terminal 211, preventing interference between them. On the one hand, it facilitates the layout of the electrical signal acquisition unit 403, and on the other hand, it makes full use of the gap between two adjacent terminals 211, improving the space utilization of the accommodating cavity 101. Moreover, this arrangement allows the information acquisition component 400 to more conveniently acquire the electrical signals of the terminals 211 of the batteries 210 on both sides of the main body 404 simultaneously.

[0061] Please see Figure 7 and Figure 8The second mounting portion 320 includes a plurality of bridging sub-portions 325 extending along a first direction X. One end of each bridging sub-portion 325 is connected to one of the first mounting portions 310 adjacent to the second mounting portion 320, and the other end of each bridging sub-portion 325 is connected to another first mounting portion 310 adjacent to the second mounting portion 320. The main body portion 404 is disposed between the bridging sub-portions 325 and the battery pack 200.

[0062] By providing the bridging sub-parts 325, the connection points between the second mounting part 320 and the first mounting part 310 can be increased, thereby improving the connection strength between the first mounting part 310 and the second mounting part 320. Furthermore, adjacent bridging sub-parts 325 can be spaced apart along the second direction Y, and there can be gaps between adjacent bridging sub-parts 325, which can reduce the weight of the second mounting part 320.

[0063] In addition, the bridging sub-part 325 can press the main body 404 onto the battery pack 200, reducing the gap between the bridging sub-part 325, the battery pack 200, and the main body 404, thus decreasing the probability of the main body 404 shaking and avoiding occupying more space in the receiving cavity 101, thereby improving the space utilization of the receiving cavity 101. Furthermore, the bridging sub-part 325 can separate the main body 404 from the cover plate 102, reducing the probability of contact between the main body 404 and the cover plate 102, ensuring that the information acquisition component 400 does not electrically connect to the cover plate 102, and improving the safety of the battery pack 1.

[0064] Please see Figure 8 The second mounting portion 320 further includes a fixing sub-portion 326 and two boundary sub-portions 324. The boundary sub-portions 324 extend along a first direction X. One end of each boundary sub-portion 324 connects to one of the first mounting portions 310 adjacent to the second mounting portion 320, and the other end of each boundary sub-portion 324 connects to the other first mounting portion 310 adjacent to the second mounting portion 320. The two boundary sub-portions 324 are respectively disposed on both sides of the second mounting portion 320 in a second direction Y. A bridging sub-portion 325 is disposed between the two boundary sub-portions 324 in the second direction Y. The fixing sub-portion 326 connects to one of the boundary sub-portions 324 at one end, and extends in the second direction Y towards the other boundary sub-portion 324, connecting to multiple bridging sub-portions 325. The other end of the fixing sub-portion 326 connects to the other boundary sub-portion 324. The fixing sub-part 326 has a positioning post (not shown in the figure) on the side facing the battery pack 200, and the main body 404 has a positioning hole (not shown in the figure) corresponding to the position of the positioning post, and the positioning post is inserted into the positioning hole.

[0065] By setting the fixed sub-part 326 and the two boundary sub-parts 324, the structural strength of the second mounting part 320 can be improved, and the connection strength between the second mounting part 320 and the first mounting part 310 is higher, which is beneficial to improving the overall structural strength of the isolation plate 300.

[0066] By setting positioning holes and positioning posts, the positioning between the information acquisition component 400 and the isolation plate 300 can be achieved, and the information acquisition component 400 and the isolation plate 300 are not prone to relative shaking. The positioning accuracy between the information acquisition component 400, the isolation plate 300 and the battery pack 200 is high.

[0067] The positioning hole can penetrate the main body 404 in the third direction Z. The positioning post is inserted through the positioning hole. The end of the positioning post away from the fixing sub-part 326 can be provided with a stop ring (not shown in the figure). The stop ring abuts against the side of the main body 404 facing away from the isolation plate 300, so as to improve the positioning stability between the isolation plate 300 and the information acquisition component 400.

[0068] Please see Figure 4 , Figure 7 and Figure 8 The battery 210 also includes a top cover 212, with two terminals 211 disposed on the top cover 212. The second mounting portion 320 has a through-hole 321 extending along the third direction Z, wherein the through-hole 321 is located between two connected bridging sub-portions 325, or between the boundary sub-portion 324 and the bridging sub-portion 325. The information acquisition assembly 400 also includes a temperature acquisition portion 402, which is connected to the main body portion 404. The separator 300 includes a pressure plate 340, one end of which is connected to the second mounting portion 320. The temperature acquisition portion 402 passes through the through-hole 321 and is disposed between the top cover 212 and the other end of the pressure plate 340; that is, the pressure plate 340 and the temperature acquisition portion 402 are connected along the third direction Z on the side opposite to the battery 210.

[0069] The temperature acquisition unit 402 may include a temperature sensor for acquiring the temperature of the battery 210.

[0070] For example, the top cover 212 has an insulating layer 213 on the side facing the isolation plate 300. The insulating layer 213 has a window area 214. The portion of the top cover 212 exposed through the window area 214 contacts the temperature sensing unit 402, which is sandwiched between the pressure plate 340 and the portion of the top cover 212 exposed through the window area 214. By providing the insulating layer 213, the probability of contact between the top cover 212 and the cover plate 102 can be reduced, improving the safety of the battery pack 1. By providing the window area 214, direct contact between the top cover 212 and the temperature sensing unit 402 can be achieved, thereby improving the heat exchange efficiency between the top cover 212 and the temperature sensing unit 402 and increasing the accuracy of temperature sensing.

[0071] By setting the pressure plate 340, the relative position between the temperature sensing part 402 and the top cover 212 can be fixed, preventing the temperature sensing part 402 from separating from the top cover 212 and ensuring that the temperature sensing part 402 is tightly attached to the top cover 212, thereby improving the reliability of temperature sensing by the temperature sensing part 402. Furthermore, an elastic element 350 can be provided between the pressure plate 340 and the temperature sensing part 402. The elastic element 350 can be foam, silicone, or rubber to fill the gap between the pressure plate 340 and the temperature sensing part 402, improving the pressing effect of the pressure plate 340 on the temperature sensing part 402.

[0072] Please see Figure 4 and Figure 8 The battery pack 1 also includes a busbar 700, which extends along the first direction X. The first mounting part 310 has a positioning groove 330 on the side opposite to the battery pack 200. The busbar 700 is located in the positioning groove 330. The bottom surface of the positioning groove 330 has a through hole 335. One end of the busbar 700 is connected to the terminal post 211 of the battery 210 through the through hole 335. The other end of the busbar 700 is connected to the terminal post 211 of the adjacent battery 210 along the first direction X through the through hole 335, and the polarity is opposite to that of the terminal post 211 connected to both ends of the busbar 700.

[0073] In other words, the positive terminal 211 of one battery 210 is connected to the busbar 700, and the negative terminal 211 of the other battery 210 is connected to the busbar 700. The busbar 700 connects the two adjacent batteries 210 in series.

[0074] The busbar 700 can be fixed by the positioning groove 330, which can ensure the reliability of the connection between the busbar 700 and the terminal 211. Furthermore, the busbar 700 protrudes less from the separator 300, which can reduce the probability of contact between the busbar 700 and the cover plate 102, thus ensuring the high safety of the battery pack 1.

[0075] In some embodiments of this application, the bottom surface of the positioning groove 330 is provided with two through holes 335. One end of the busbar 700 is connected to the terminal post 211 of the battery 210 through one of the through holes 335, and the other end of the busbar 700 is connected to the terminal post 211 of the battery 210 in the adjacent battery pack 200 corresponding to the position of the battery 210 through the other through hole 335. The polarities of the terminals 211 at both ends of the busbar 700 are opposite.

[0076] Furthermore, a notch 334 is provided on the bottom surface of the positioning groove 330. The notch 334 is disposed close to the side wall of the positioning groove 330 near the second mounting part 320. The electrical signal acquisition part 403 passes through the notch 334 and is connected to the main body part 404. The electrical signal acquisition part 403 is located between the top cover 212 and the busbar 700 and is electrically connected to the busbar 700. The notch 334 and the through hole 335 are connected.

[0077] In this way, the electrical signal acquisition unit 403 does not need to avoid the groove wall of the positioning groove 330, reducing the number of bends of the electrical signal acquisition unit 403. The electrical signal acquisition unit 403 and the notch 334 can play a positioning role, improving the positioning accuracy among the information acquisition component 400, bus 700 and isolation plate 300, thereby ensuring the reliability of the electrical connection among the bus 700, top cover 212 and electrical signal acquisition unit 403.

[0078] In some preferred embodiments of this application, such as Figures 3-4 As shown, an insulating strip 900 can be provided between the busbar 700 and the cover plate 102. The insulating strip 900 can be made of materials such as rubber or silicone. The insulating strip 900 is elastic, which can separate the busbar 700 and the cover plate 102, and can also adapt to the size between the busbar 700 and the cover plate 102 through elastic deformation, making the assembly of the battery pack 1 convenient.

[0079] Please see Figure 7 and Figure 9 The information acquisition component 400 includes multiple electrical signal acquisition units 403, which are alternately arranged on opposite sides of the main body 404 in the second direction Y.

[0080] Specifically, along the second direction Y, the terminal 211 of the battery 210 is electrically connected to the electrical signal acquisition unit 403 located on the same side of the main body 404. This not only allows the electrical signals of the two adjacent battery columns to be acquired with a single information acquisition component 400, reducing the number of parts, but also facilitates the connection between the electrical signal acquisition unit 403 and the terminal 211 by connecting the terminal 211 to the terminal 211.

[0081] Please see Figure 5 The battery pack 1 also includes a slave control module 600, which is located in the receiving cavity 101 and is located on one side of the battery pack 200 along the first direction X. The information acquisition component 400 extends along the first direction X and is connected to the slave control module 600.

[0082] In this way, the slave control module 600 can transmit the electrical and temperature signals collected by the information acquisition component 400 to the battery management system, thereby realizing the control of the battery pack 1.

[0083] In addition, the battery pack 1 may also be provided with a pressure strip 800, which is located between the second mounting part 320 and the cover plate 102. The pressure strip 800 is connected to the part of the battery 210 exposed from the hollow hole 321 to fix the relative position between the multiple batteries 210 in the battery pack 200.

[0084] Secondly, this utility model provides an electrical device, which includes the aforementioned battery pack 1. The electrical device can be a vehicle or an energy storage device, etc.

[0085] The electrical equipment of this invention, through the aforementioned battery pack 1, can achieve positioning between the information acquisition component 400 and the battery 210, thereby improving the reliability of electrical signal detection.

[0086] 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. A battery pack having intersecting first directions (X), second directions (Y), and a third direction (Z), characterized in that, include: The box (100) has an opening (103); A cover plate (102) is connected to the box body (100) and covers the opening (103). The cover plate (102) and the box body (100) together form a receiving cavity (101). Multiple battery packs (200) are disposed within the receiving cavity (101). The multiple battery packs (200) are arranged along the first direction (X). Each battery pack (200) includes multiple batteries (210). The multiple batteries (210) are arranged along the second direction (Y). Each battery (210) includes a top cover (212) and two terminals (211) spaced apart along the first direction (X). The two terminals (211) are disposed on the top cover (212). An isolation plate (300) is connected to the side of the battery (210) where the terminal post (211) is provided. The isolation plate (300) includes a plurality of first mounting portions (310) and a plurality of second mounting portions (320) arranged alternately along the first direction (X). Adjacent first mounting portions (310) and second mounting portions (320) are connected. The first mounting portion (310) is connected to the terminal post (211). The second mounting portion (320) is located between two terminals (211) of the same battery (210) along the first direction (X). The second mounting portion (320) protrudes relative to the first mounting portion (310) in the direction of the third direction (Z) toward the battery pack (200). The information acquisition component (400) includes a main body (404) and an electrical signal acquisition unit (403) connected to the main body (404). The main body (404) is located between the second mounting part (320) and the battery pack (200), and the electrical signal acquisition unit (403) is located between the first mounting part (310) and the top cover (212).

2. The battery pack according to claim 1, characterized in that, The main body (404) extends along the first direction (X) and is located between the terminals (211) of two adjacent batteries (210) along the second direction (Y).

3. The battery pack according to claim 2, characterized in that, The second mounting part (320) includes: A plurality of bridging sub-parts (325) extending along the first direction (X), one end of each bridging sub-part (325) being connected to one of the first mounting parts (310) adjacent to the second mounting part (320), and the other end of each bridging sub-part (325) being connected to another of the first mounting parts (310) adjacent to the second mounting part (320), and the main body (404) being disposed between the bridging sub-parts (325) and the battery pack (200).

4. The battery pack according to claim 3, characterized in that, The second mounting part (320) also includes: Two boundary sub-parts (324) extending along the first direction (X), one end of each boundary sub-part (324) being connected to one of the first mounting parts (310) adjacent to the second mounting part (320), and the other end of each boundary sub-part (324) being connected to the other first mounting part (310) adjacent to the second mounting part (320), and the two boundary sub-parts (324) being respectively disposed on both sides of the second mounting part (320) in the second direction (Y), and the bridging sub-part (325) being disposed between the two boundary sub-parts (324) in the second direction (Y); A fixing sub-part (326) is provided, one end of which is connected to one of the boundary sub-parts (324), and in the second direction (Y), the fixing sub-part (326) extends toward another boundary sub-part (324) and connects to a plurality of the bridging sub-parts (325), and the other end of the fixing sub-part (326) is connected to another boundary sub-part (324); The fixing sub-part (326) has a positioning post on the side facing the battery pack (200), and the main body (404) has a positioning hole corresponding to the position of the positioning post, and the positioning post is inserted into the positioning hole.

5. The battery pack according to claim 1, Its characteristics are: The second mounting part (320) is formed with a hollow hole (321) that extends through the third direction (Z), and the information acquisition component (400) also includes a temperature acquisition part (402) connected to the main body part (404); The isolation plate (300) includes a pressure plate (340), one end of which is connected to the second mounting part (320), and the temperature acquisition part (402) passes through the hollow hole (321) and is located between the top cover (212) and the other end of the pressure plate (340).

6. The battery pack (1) according to claim 1, characterized in that, Also includes: The slave control module (600) is located inside the receiving cavity (101) and is located on one side of the battery pack (200) along the first direction (X). The information acquisition component (400) extends along the first direction (X) and is connected to the slave control module (600).

7. The battery pack according to any one of claims 1-6, characterized in that, Also includes: A busbar (700) extending along the first direction (X) has a positioning groove (330) on the side of the first mounting part (310) facing away from the battery pack (200). The busbar (700) is located in the positioning groove (330). A through hole (335) is provided on the bottom surface of the positioning groove (330). One end of the busbar (700) is connected to the terminal (211) of the battery (210) through the through hole (335). The other end of the busbar (700) is connected to the terminal (211) of the adjacent battery (210) along the first direction (X) through the through hole (335), and the polarity is opposite to that of the terminal (211) connected to both ends of the busbar (700).

8. The battery pack according to claim 7, characterized in that, The bottom surface of the positioning groove (330) is provided with a notch (334). The notch (334) fits the side wall of the positioning groove (330) near the second mounting part (320). The electrical signal acquisition part (403) passes through the notch (334) and is connected to the main body part (404). The electrical signal acquisition part (403) is located between the top cover (212) and the busbar (700). The electrical signal acquisition part (403) is electrically connected to the busbar (700).

9. The battery pack according to any one of claims 1-6, characterized in that, The information acquisition component (400) includes a plurality of electrical signal acquisition units (403), which are alternately arranged on opposite sides of the main body (404) in the second direction (Y).

10. An electrical appliance, characterized in that, Includes the battery pack (1) according to any one of claims 1-9.

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