Insulating protective cover and battery pack
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-18
- Publication Date
- 2026-08-11
AI Technical Summary
[0025] The beneficial effects of the technical solution provided in this application include at least the following:
Smart Images
Figure CN224625856U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery pack technology, and in particular to an insulating protective cover and a battery pack. Background Technology
[0002] A battery pack is a battery system that combines multiple individual battery cells in a specific configuration and connection method. This combination can provide higher voltage, capacity, or power output to meet the needs of specific applications. They are widely used in various electronic devices and electric vehicles to ensure the stable and safe operation of the equipment.
[0003] A battery pack typically includes individual battery cells, a battery management system (BMS), a high negative electrode circuit, and other components. Among these, insulation protection is crucial for the installation and fixation of the positive and negative electrode components. Utility Model Content
[0004] This application provides an insulating protective cover and a battery pack, which can achieve insulating protection for the positive and negative components inside the battery pack.
[0005] The technical solution is as follows:
[0006] On the one hand, an insulating protective cover is provided, which is suitable for the insulating installation of the positive and negative circuit components in a battery pack;
[0007] The insulating protective cover includes a protective cover body, the protective cover body includes a positive electrode receiving cavity and a negative electrode receiving cavity, and an insulating partition is provided between the positive electrode receiving cavity and the negative electrode receiving cavity;
[0008] The positive electrode cavity is used to accommodate the positive electrode circuit assembly, and the negative electrode cavity is used to accommodate the negative electrode circuit assembly.
[0009] In some embodiments, the positive electrode receiving cavity, the insulating partition, and the negative electrode receiving cavity are arranged in parallel in sequence.
[0010] In some embodiments, the protective cover body includes a rectangular bottom wall and four side walls, the four side walls being located at the four edges of the rectangular bottom wall respectively, and the four side walls being connected end to end in sequence;
[0011] The insulating partition is located within a rectangular cavity formed by the four side walls, and is connected to the bottom wall of the rectangle, and two of the side walls are arranged opposite to each other, so as to divide the rectangular cavity into the positive electrode receiving cavity and the negative electrode receiving cavity.
[0012] In some embodiments, the positive electrode receiving cavity includes a positive electrode conductive bar inlet and a positive electrode conductive bar outlet, wherein the positive electrode conductive bar inlet and the positive electrode conductive bar outlet are respectively connected to the outside of the protective cover body.
[0013] The negative electrode receiving cavity includes a negative electrode conductive input port and a negative electrode conductive output port, which are respectively connected to the outside of the protective cover body.
[0014] In some embodiments, the positive electrode conductive busbar input port and the negative electrode conductive busbar input port are respectively located at the first end of the protective cover body, and the positive electrode conductive busbar output port and the negative electrode conductive busbar output port are respectively located at the second end of the protective cover body.
[0015] In some embodiments, one of the positive electrode conductive bar input port and the negative electrode conductive bar input port is located at the first end of the protective cover body, and the other is located on the side wall between the first end and the second end of the protective cover body;
[0016] The positive conductive outlet and the negative conductive outlet are respectively located at the second end of the protective cover body.
[0017] In some embodiments, at least one of the positive electrode conductive busbar input port, the positive electrode conductive busbar output port, the negative electrode conductive busbar input port, and the negative electrode conductive busbar output port is provided with a conductive busbar support groove, which is located below the corresponding conductive busbar and is used to support the conductive busbar.
[0018] In some embodiments, the conductive strip support groove and the protective cover body are integrally formed, the shape of the conductive strip support groove corresponds to the cross-sectional shape of the conductive strip, and extends to at least one side of the inner or outer side of the protective cover body.
[0019] In some embodiments, the protective cover body further includes at least one insulating post, the at least one insulating post being located within at least one of the positive electrode receiving cavity and the negative electrode receiving cavity, the at least one insulating post being used to support and fix the positive electrode circuit assembly or the negative electrode circuit assembly;
[0020] And / or,
[0021] The insulating protective cover also includes a support frame, the support frame having a protrusion, and the protective cover body being located on the protrusion; the protrusion has at least one connection hole.
[0022] On the other hand, a battery pack is provided, the battery pack including the insulating protective cover described in this application, as well as a positive electrode circuit assembly and a negative electrode circuit assembly; the positive electrode circuit assembly is located in the positive electrode receiving cavity, and the negative electrode circuit assembly is located in the negative electrode receiving cavity.
[0023] In some embodiments, the battery pack further includes a housing, the housing containing an electrical compartment, the electrical compartment being rectangular in shape and located at one end of the housing;
[0024] The insulating protective cover is located inside the electrical compartment, and the positive electrode receiving cavity and the negative electrode receiving cavity extend along the length direction of the electrical compartment, respectively.
[0025] The beneficial effects of the technical solution provided in this application include at least the following:
[0026] The insulating protective cover of this application is suitable for the insulating installation of the positive and negative circuit components in a battery pack. The positive and negative receiving cavities are separated in the body of the protective cover by an insulating partition. The positive and negative receiving cavities have better insulation performance. After the positive and negative circuit components are installed in the positive and negative receiving cavities respectively, a better insulation effect can be obtained. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the connection structure between the insulating protective cover and the positive electrode circuit assembly and the negative voltage circuit assembly provided in the embodiments of this application;
[0029] Figure 2 This is a schematic diagram of the structure of the insulating protective cover body provided in the embodiment of this application;
[0030] Figure 3 This is a schematic diagram of the structure of an insulating protective cover body provided in another embodiment of this application;
[0031] Figure 4 This is a schematic diagram of the battery pack provided in the embodiments of this application.
[0032] The reference numerals in the figure are respectively:
[0033] 100. Insulating protective cover;
[0034] 200. Positive circuit assembly; 2001. Positive input busbar; 2002. Positive output busbar;
[0035] 300. Negative electrode circuit assembly; 3001. Negative electrode input busbar; 3002. Negative electrode output busbar;
[0036] 400. Enclosure; 4001. Electrical compartment;
[0037] 1. Protective cover body;
[0038] 1001, First end; 1002, Second end;
[0039] 101. Rectangular base wall; 102. Side wall;
[0040] 11. Positive electrode receiving cavity; 1101. Positive electrode conductive bus input port; 1102. Positive electrode conductive bus output port; 12. Negative electrode receiving cavity; 1201. Negative electrode conductive bus input port; 1202. Negative electrode conductive bus output port; 13. Insulating partition; 14. Conductor bus support groove; 15. Insulating column;
[0041] 2. Support frame;
[0042] 21. Protrusion; 211. Connecting hole. Detailed Implementation
[0043] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0044] In the description of this application, 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," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, 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 application.
[0045] It should be understood that in this application, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Communication connection" can refer to the transmission of electrical signals, including wireless communication connections and wired communication connections. Wireless communication connections do not require a physical medium and are not a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical or physical connection relationship, that is, A and B being connected or connected can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or that A and B are in contact with each other and are difficult to separate.
[0046] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.
[0047] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0048] On the one hand, combined with Figure 1 and Figure 2 As shown, this embodiment provides an insulating protective cover 100, which is suitable for the insulating installation of the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300 in a battery pack.
[0049] The insulating protective cover 100 includes a protective cover body 1, which includes a positive electrode receiving cavity 11 and a negative electrode receiving cavity 12. An insulating partition 13 is provided between the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12. The positive electrode receiving cavity 11 is used to receive the positive electrode circuit assembly 200, and the negative electrode receiving cavity 12 is used to receive the negative electrode circuit assembly 300.
[0050] The insulating protective cover 100 of this embodiment is suitable for the insulating installation of the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300 in the battery pack. The positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 are separated in the protective cover body 1 by the insulating partition 13. The positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 have better insulation performance. After the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300 are installed in the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 respectively, a better insulation effect can be obtained.
[0051] In battery packs (especially high-voltage battery packs in electric vehicles or energy storage systems), the positive circuit assembly 200 and the negative circuit assembly 300 are core components of the electrical system, together forming the current path. The positive circuit assembly 200 outputs current from the battery pack to the load, while the negative circuit assembly 300 returns current from the load to the battery pack. Both the positive circuit assembly 200 and the negative circuit assembly 300 must be insulated from the battery pack casing, and the BMS monitors the insulation resistance to prevent leakage risks.
[0052] In some possible implementations, the positive circuit component 200 has the following functions, including but not limited to:
[0053] High-voltage current output: The positive terminal of the battery pack's high-voltage output is directly connected to the load (such as a motor, inverter, etc.), providing a positive path for high-voltage DC power.
[0054] Main contactor control: The positive circuit assembly 200 typically connects a main positive contactor (or relay) in series, whose on / off state is controlled by the Battery Management System (BMS). The contactor closes when the load starts or when high voltage is required; in the event of a fault or power outage, the contactor opens first to disconnect the high voltage.
[0055] Pre-charge protection: The positive circuit assembly 200 may include a pre-charge circuit (pre-charge contactor + pre-charge resistor) to limit the current when the system is powered on, prevent high voltage instantaneous impact on the load capacitor (such as inverter capacitor), and prevent sparks or damage to the device.
[0056] Fuse protection: The positive circuit assembly 200 can be configured with a high-voltage fuse, which will blow in case of overcurrent or short circuit to protect the battery and system safety.
[0057] For example, the positive circuit assembly 200 includes, but is not limited to, a positive busbar, a positive contactor, a pre-charge contactor, a pre-charge resistor, a high-voltage fuse, and a current sensor, etc.
[0058] In some possible implementations, the negative circuit component 300 has the following functions, including but not limited to:
[0059] High-voltage current return: The negative electrode circuit component 300 is the path for current to return to the battery pack, forming a closed circuit together with the positive electrode circuit.
[0060] Main contactor control: The negative circuit assembly 300 also has a main negative contactor connected in series, but its disconnection sequence is usually later than that of the positive contactor (the positive contactor is disconnected first in case of a fault) to ensure safety.
[0061] Current detection: The negative electrode circuit component 300 often integrates a Hall current sensor or shunt resistor to monitor the charging and discharging current of the battery pack in real time and provide data to the BMS.
[0062] System reference ground: The negative circuit component 300 is usually used as the reference ground for the vehicle's high voltage system (but attention should be paid to the issue of sharing a ground with the low voltage 12V system), which affects EMC design and insulation monitoring.
[0063] For example, the negative circuit assembly 300 includes, but is not limited to, a negative busbar, a negative contactor, a current sensor, a high-voltage interlock circuit, and a grounding protection device, etc.
[0064] Combination Figure 2 As shown, in some embodiments, the positive electrode receiving cavity 11, the insulating partition 13, and the negative electrode receiving cavity 12 are arranged in parallel in sequence.
[0065] In this embodiment, the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 are arranged in parallel within the insulating protective cover 100, and the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300 are routed in parallel, which has good integration and is conducive to improving installation efficiency.
[0066] Combination Figure 2 As shown, in some embodiments, the protective cover body 1 includes a rectangular bottom wall 101 and four side walls 102. The four side walls 102 are located at the four edges of the rectangular bottom wall 101, and are connected end-to-end in sequence. An insulating partition 13 is located in the rectangular cavity formed by the four side walls 102, and is connected to the rectangular bottom wall 101 and two oppositely arranged side walls 102, so as to divide the rectangular cavity into a positive electrode receiving cavity 11 and a negative electrode receiving cavity 12.
[0067] With the above arrangement, the bottom wall 101 and four side walls 102 of the protective cover body 1 can be used to provide insulation protection for the bottom and sides of the insulating protective cover 100, thereby creating an insulation gap between the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300 and the external structure, and improving the insulation performance between the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300 and other electrical components of the battery pack.
[0068] In addition, the bottom surface of the protective cover body 1 adopts a rectangular bottom wall 101, which has a relatively regular shape, which is conducive to improving the integrated layout of the insulating protective cover 100 in the battery pack and improving the stacking efficiency of the battery pack.
[0069] For example, the four sidewalls 102 are respectively perpendicularly connected to the rectangular bottom wall 101, and the insulating partition 13 is perpendicularly connected to the rectangular bottom wall 101, thereby increasing the isolation gap between the positive and negative electrode circuit assemblies 300 and between the positive and negative electrode circuit assemblies 300 and the external structure.
[0070] For example, the protective cover body 1 is injection molded from an insulating material. The insulating material includes, but is not limited to, nylon composite materials, glass fiber materials, carbon fiber materials, etc.
[0071] Combination Figure 2 As shown, in some embodiments, the positive electrode receiving cavity 11 includes a positive electrode conductive busbar input port 1101 and a positive electrode conductive busbar output port 1102, which are respectively connected to the outside of the protective cover body 1.
[0072] The negative electrode receiving cavity 12 includes a negative electrode conductive busbar inlet 1201 and a negative electrode conductive busbar outlet 1202, which are respectively connected to the outside of the protective cover body 1.
[0073] In this embodiment, the positive electrode circuit assembly 200 includes a positive electrode input busbar 2001 and a positive electrode output busbar 2002, and the negative electrode circuit assembly 300 includes a negative electrode input busbar 3001 and a negative electrode output busbar 3002. The positive electrode input busbar 2001 can enter the positive electrode receiving cavity 11 through the positive electrode input port 1101, and the positive electrode output busbar 2002 can extend outward through the positive electrode output port 1102. The negative electrode input busbar 3001 can enter the negative electrode receiving cavity 12 through the negative electrode input port 1201, and the negative electrode output busbar 3002 can extend outward through the negative electrode output port 1202.
[0074] It should be noted that in this embodiment, the inputs at the positive electrode input port 1101 and the negative electrode input port 1201, as well as the outputs at the positive electrode output port 1102 and the negative electrode output port 1202, are all based on the insulating protective cover 100 as a reference. Any input is considered to be entering the insulating protective cover 100 from the outside, and any output is considered to be moving outward from the insulating protective cover 100. The directions of input and output are not absolute; they are used here only for clarity in illustrating the technical solution and should not be considered as limitations on the technical solution.
[0075] Combination Figure 2 As shown, in some embodiments, the positive electrode input port 1101 and the negative electrode input port 1201 are respectively located at the first end 1001 of the protective cover body 1, and the positive electrode output port 1102 and the negative electrode output port 1202 are respectively located at the second end 1002 of the protective cover body 1.
[0076] With the above arrangement, the input ports of the positive and negative conductive busbars are simultaneously arranged at the first end 1001 of the protective cover body 1, and the output ports of the positive and negative conductive busbars are simultaneously arranged at the second end 1002 of the protective cover body 1. The positive and negative conductive busbars are parallel and more orderly, which is conducive to improving the insulation performance and wiring efficiency of the positive and negative circuit components.
[0077] Combination Figure 2 As shown, in some embodiments, one of the positive electrode input port 1101 and the negative electrode input port 1201 is located at the first end 1001 of the protective cover body 1, and the other is located on the side wall 102 between the first end 1001 and the second end 1002 of the protective cover body 1; the positive electrode output port 1102 and the negative electrode output port 1202 are respectively located at the second end 1002 of the protective cover body 1.
[0078] With the above arrangement, the position of the positive and negative conductive busbar input port can be arranged on the side wall 102 of the protective cover body 1 according to the space requirements of the positive and negative conductive busbars. This allows the protective cover body 1 to flexibly adapt to conductive busbars with different orientations, thereby improving the application range of the insulating protective cover 100.
[0079] Combination Figure 2 As shown, in some embodiments, at least one of the positive electrode input port 1101, the positive electrode output port 1102, the negative electrode input port 1201, and the negative electrode output port 1202 is provided with a conductive busbar support groove 14, which is located below the corresponding conductive busbar and is used to support the conductive busbar.
[0080] Considering that some conductive busbars are quite wide, in order to prevent the weight of the conductive busbars from being concentrated at the connection points, conductive busbar support slots 14 can be arranged on the positive conductive busbar input port 1101, positive conductive busbar output port 1102, negative conductive busbar input port 1201, and negative conductive busbar output port 1202 of the protective cover body 1, respectively. The conductive busbar support slots 14 support the corresponding conductive busbars below, bear the weight of the conductive busbars, and ensure the reliability of the conductive busbar connection.
[0081] In this embodiment, the conductive bus can be any one of the positive input conductive bus 2001, the positive output conductive bus 2002, the negative input conductive bus 3001, and the negative output conductive bus 3002.
[0082] In some possible implementations, conductive busbar slots 14 are provided on the negative conductive busbar input port 1201 and the negative conductive busbar output port 1202, respectively.
[0083] For example, the conductive bar tray 14 is located inside the negative conductive bar inlet 1201 and the negative conductive bar outlet 1202, so that the conductive bar tray 14 does not increase the external size of the insulating protective cover 100, which helps to prevent the insulating protective cover 100 from interfering with other structures of the battery pack.
[0084] Combination Figure 2As shown, in some embodiments, the conductive busbar support groove 14 and the protective cover body 1 are integrally formed. The shape of the conductive busbar support groove 14 corresponds to the cross-sectional shape of the conductive busbar and extends to at least one side of the inner or outer side of the protective cover body 1.
[0085] With the above arrangement, the conductive busbar support groove 14 is machined together with the protective cover body 1, resulting in a simpler structure. Furthermore, the shape of the conductive busbar support groove 14 corresponds to the cross-sectional shape of the conductive busbar, providing better positioning and support after the conductive busbar is installed within the support groove 14, preventing wobbling. In addition, by extending the conductive busbar support groove 14, its positioning and support effect on the conductive busbar can be further improved.
[0086] Combination Figure 2 As shown, in some embodiments, the protective cover body 1 is rectangular, and the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 are arranged along the length direction of the protective cover body 1.
[0087] In this embodiment, the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300 are arranged in series. The positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 are arranged along the length direction in the cuboid protective cover body 1, which matches the series shape of the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300, and can realize the parallel and insulated arrangement of the positive electrode circuit assembly 200 and the negative electrode circuit assembly 300.
[0088] Combination Figure 3 As shown, in some embodiments, the protective cover body 1 further includes at least one insulating post 15, which is located in at least one of the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12, and the at least one insulating post 15 is used to support and fix the positive electrode circuit assembly 200 or the negative electrode circuit assembly 300.
[0089] With the above arrangement, the positive electrode circuit assembly 200 or the negative electrode circuit assembly 300 can be supported and installed in the positive electrode receiving cavity 11 or the negative electrode receiving cavity 12 by using the insulating column 15.
[0090] For example, the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 each have two spaced-apart insulating posts 15. The insulating posts 15 can be connected to the rectangular bottom wall 101 of the corresponding positive electrode receiving cavity 11 or negative electrode receiving cavity 12 by screws.
[0091] In some possible implementations, the bottom of the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12 is also provided with multiple mounting holes, which can be used to install the insulating post 15, or to directly install components in the positive electrode circuit assembly 200 or the negative electrode circuit assembly 300.
[0092] Combination Figure 1 and Figure 3As shown, in some embodiments, the insulating protective cover 100 further includes a support frame 2, the support frame 2 has a protrusion 21, the protective cover body 1 is located on the protrusion 21, and the protrusion 21 has at least one connection hole 211.
[0093] In this embodiment, the protective cover body 1 can be installed inside the battery pack via the support frame 2. The protrusion 21 is used to elevate the protective cover body 1, reserving space for the connecting screws. The connecting holes 211 include, but are not limited to, riveting holes, threaded holes, etc. The connecting holes 211 can be used to fix the components in the insulating post 15, positive circuit assembly 200, or negative circuit assembly 300 inside the protective cover body 1, and can also be used to fix the protective cover body 1 to the support frame 2.
[0094] For example, the support frame 2 is a sheet metal structural component.
[0095] In this embodiment, the insulating protective cover 100 adopts a split structure. The protective cover body 1 is installed on the support frame 2, and the insulating column 15 is installed on the protective cover body 1. This makes installation and maintenance convenient and helps to improve the electrical connection efficiency of the battery pack.
[0096] On the other hand, combining Figure 4 As shown, this embodiment provides a battery pack, which includes the insulating protective cover 100 of this application, as well as a positive electrode circuit assembly 200 and a negative electrode circuit assembly 300; the positive electrode circuit assembly 200 is located in the positive electrode receiving cavity 11, and the negative electrode circuit assembly 300 is located in the negative electrode receiving cavity 12.
[0097] The battery pack of this embodiment uses the insulating protective cover 100 provided in this application, which has all the beneficial technical effects of this application. The positive and negative electrode circuit components 300 are arranged in isolation in the positive electrode receiving cavity 11 and the negative electrode receiving cavity 12, which has better insulation characteristics.
[0098] Combination Figure 4 As shown, in some embodiments, the battery pack also includes a housing 400, which contains an electrical compartment 4001. The electrical compartment 4001 is rectangular and located at one end of the housing 400.
[0099] An insulating protective cover 100 is located inside an electrical compartment 4001, and a positive electrode receiving cavity 11 and a negative electrode receiving cavity 12 extend along the length of the electrical compartment 4001, respectively.
[0100] With the above arrangement, the insulating protective cover 100 is arranged in the electrical compartment 4001 of the battery pack, which can provide insulation for the positive circuit assembly 200 and the negative circuit assembly 300.
[0101] In this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0102] 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, features 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.
[0103] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0104] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.
[0105] The above description is merely an embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.
Claims
1. An insulating protective cover, characterized in that, Suitable for insulating mounting of the positive circuit assembly (200) and negative circuit assembly (300) within a battery pack; The insulating protective cover (100) includes a protective cover body (1), the protective cover body (1) includes a positive electrode receiving cavity (11) and a negative electrode receiving cavity (12), and an insulating partition (13) is provided between the positive electrode receiving cavity (11) and the negative electrode receiving cavity (12); The positive electrode receiving cavity (11) is used to receive the positive electrode circuit assembly (200), and the negative electrode receiving cavity (12) is used to receive the negative electrode circuit assembly (300).
2. The insulating protective cover according to claim 1, characterized in that, The positive electrode receiving cavity (11), the insulating partition (13), and the negative electrode receiving cavity (12) are arranged in parallel in sequence.
3. The insulating protective cover according to claim 1, characterized in that, The protective cover body (1) includes a rectangular bottom wall (101) and four side walls (102). The four side walls (102) are located at the four edges of the rectangular bottom wall (101) respectively, and the four side walls (102) are connected end to end in sequence. The insulating partition (13) is located in the rectangular cavity formed by the four side walls (102) and is connected to the rectangular bottom wall (101) and the two side walls (102) arranged opposite to each other, so as to divide the rectangular cavity into the positive electrode receiving cavity (11) and the negative electrode receiving cavity (12).
4. The insulating protective cover according to claim 1, characterized in that, The positive electrode receiving cavity (11) includes a positive electrode conductive busbar inlet (1101) and a positive electrode conductive busbar outlet (1102), and the positive electrode conductive busbar inlet (1101) and the positive electrode conductive busbar outlet (1102) are respectively connected to the outside of the protective cover body (1); The negative electrode receiving cavity (12) includes a negative electrode conductive busbar input port (1201) and a negative electrode conductive busbar output port (1202), and the negative electrode conductive busbar input port (1201) and the negative electrode conductive busbar output port (1202) are respectively connected to the outside of the protective cover body (1).
5. The insulating protective cover according to claim 4, characterized in that, The positive electrode conductive busbar input port (1101) and the negative electrode conductive busbar input port (1201) are respectively located at the first end (1001) of the protective cover body (1), and the positive electrode conductive busbar output port (1102) and the negative electrode conductive busbar output port (1202) are respectively located at the second end (1002) of the protective cover body (1).
6. The insulating protective cover according to claim 4, characterized in that, One of the positive electrode conductive busbar input port (1101) and the negative electrode conductive busbar input port (1201) is located at the first end (1001) of the protective cover body (1), and the other is located on the side wall (102) between the first end (1001) and the second end (1002) of the protective cover body (1). The positive conductive outlet (1102) and the negative conductive outlet (1202) are respectively located at the second end (1002) of the protective cover body (1).
7. The insulating protective cover according to claim 4, characterized in that, At least one of the positive electrode conductive busbar input port (1101), the positive electrode conductive busbar output port (1102), the negative electrode conductive busbar input port (1201), and the negative electrode conductive busbar output port (1202) is provided with a conductive busbar support groove (14), which is located below the corresponding conductive busbar and is used to support the conductive busbar.
8. The insulating protective cover according to claim 7, characterized in that, The conductive strip support groove (14) and the protective cover body (1) are integrally formed. The shape of the conductive strip support groove (14) corresponds to the cross-sectional shape of the conductive strip and extends to at least one side of the inner or outer side of the protective cover body (1).
9. The insulating protective cover according to any one of claims 1 to 8, characterized in that, The protective cover body (1) further includes at least one insulating post (15), which is located in at least one of the positive electrode receiving cavity (11) and the negative electrode receiving cavity (12), and the at least one insulating post (15) is used to support and fix the positive electrode circuit assembly (200) or the negative electrode circuit assembly (300); And / or, The insulating protective cover (100) also includes a support frame (2), the support frame (2) is provided with a protrusion (21), and the protective cover body (1) is located on the protrusion (21); the protrusion (21) is provided with at least one connection hole (211).
10. A battery pack, characterized in that, The battery pack includes: an insulating protective cover (100) according to any one of claims 1 to 9, and a positive electrode circuit assembly (200) and a negative electrode circuit assembly (300); The positive electrode circuit assembly (200) is located in the positive electrode receiving cavity (11), and the negative electrode circuit assembly (300) is located in the negative electrode receiving cavity (12).
11. The battery pack according to claim 10, characterized in that, The battery pack also includes a housing (400), which contains an electrical compartment (4001). The electrical compartment (4001) is rectangular and located at one end of the housing (400). The insulating protective cover (100) is located inside the electrical compartment (4001), and the positive electrode receiving cavity (11) and the negative electrode receiving cavity (12) extend along the length direction of the electrical compartment (4001).