An insert guard and battery pack

Abstract

The utility model relates to the technical field of electric energy storage, and specifically discloses a plug-in protective cover and a battery pack, which comprise: at least two insulating cover caps for shielding electrical connection plugs, and a plurality of intermediate connecting parts connecting two adjacent insulating cover caps. The plug-in protective cover and the battery pack provided by the utility model can effectively solve the problem that the existing protective cover is easily misassembled.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a plug-in protective cover and battery pack. Background Technology

[0002] In battery pack structural design, electrical connection plugs (such as charging interfaces, discharging interfaces, and communication interfaces) are key components that ensure battery energy transmission and signal interaction. To prevent foreign object intrusion, avoid accidental operation, and improve insulation safety, a customized plug-in protective cover is usually installed on top of each individual plug-in to form a physical isolation barrier.

[0003] In the current technical solution, corresponding protective covers are required for plug-in components of different specifications (such as charging plug-in and discharging plug-in). However, since the macroscopic shape and overall size of each plug-in protective cover are relatively small (for example, there are only slight differences in the local buckle position or the shape of the opening), and all plug-in protective covers are independent and separate individual components, it is very easy to cause incorrect installation problems due to insufficient visual recognition or operational negligence during the assembly process.

[0004] Therefore, existing protective covers need to be improved to address the problem of them being easily installed in the wrong position.

[0005] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] One objective of this invention is to provide a plug-in protective cover and battery pack that can effectively solve the problem of existing protective covers being easily installed in the wrong position.

[0007] To achieve the above objectives, this utility model provides a plug-in protective cover, comprising:

[0008] It includes at least two insulating covers for shielding electrical connection plugs, and a number of intermediate connecting portions connecting two adjacent insulating covers.

[0009] Optionally, the insulating cover encloses a plug-in receiving cavity for accommodating the electrical connection plug-in;

[0010] The back side and bottom surface of the plug-in receiving cavity are both open structures.

[0011] Optionally, the front of the plug-in receiving cavity is provided with a clearance window for the passage of conductive connectors.

[0012] Optionally, some of the clearance windows are provided with a number of vertical reinforcing parts, each of the vertical reinforcing parts being used to separate two adjacent conductive connectors.

[0013] Optionally, at least one of the intermediate connecting portions is provided with a mounting hole through which a fastener passes.

[0014] Optionally, the intermediate connecting portion includes a vertical mounting portion having the mounting hole and a horizontal reinforcing portion connecting two adjacent insulating covers.

[0015] Optionally, the inner wall of the plug-in receiving cavity is coated with a shielding coating.

[0016] Optionally, at least one of the insulating covers is provided with a notch for the wire harness to pass through and / or a wire securing hole for the wire securing component to be inserted; when both the notch for the wire harness and the wire securing hole are provided, the notch for the wire harness is provided on the side of the insulating cover, and the wire securing hole is provided on the front of the insulating cover.

[0017] Optionally, each of the insulating covers and each of the intermediate connecting parts are integrally injection molded structures.

[0018] On the other hand, a battery pack is provided, comprising:

[0019] A battery housing, wherein the battery housing is provided with a crossbeam that divides the internal space of the battery housing into a battery compartment and an electronic control compartment;

[0020] At least two electrical connection plugs, each of which is installed and fixed on the box beam;

[0021] The plug-in protective cover described in any one of the claims is attached to the side of the box beam to simultaneously cover each of the electrical connection plugs in coordination with the box beam.

[0022] The beneficial effects of this utility model are as follows: It provides a plug-in protective cover and battery pack, which adopts a modular structure of "at least two insulating covers + intermediate connecting part", so that a single plug-in protective cover can cover multiple electrical connection plugs at the same time, eliminating the complexity of independent matching of multiple covers. Workers only need to install one integrated cover instead of multiple independent covers, which significantly reduces the probability of incorrect installation.

[0023] Therefore, the plug-in protective cover and battery pack provided by this utility model can effectively solve the problem that existing protective covers are easily installed in the wrong position. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the battery pack provided in the embodiment;

[0026] Figure 2 A cross-sectional schematic diagram of the battery pack provided for an embodiment;

[0027] Figure 3 A front view of the plug-in protective cover provided for an embodiment;

[0028] Figure 4 A schematic diagram of the back of the plug-in protective cover provided for an embodiment.

[0029] In the picture:

[0030] 1. Box frame crossbeams;

[0031] 2. Conductive connectors;

[0032] 3. Plug-in protective cover;

[0033] 301. Insulating cover; 3011. Insertion cavity; 3012. Clearance window; 3013. Wire fixing hole; 3014. Vertical reinforcement; 3015. Notch for wire passing through;

[0034] 302. Intermediate connecting part; 3021. Vertical mounting part; 3021a. Mounting hole; 3022. Horizontal reinforcing part;

[0035] 4. Electrical connection plugs. Detailed Implementation

[0036] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0037] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0038] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0039] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0040] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0041] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0042] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0044] This utility model provides a plug-in protective cover and battery pack, which can effectively solve the problem that existing protective covers are easily installed in the wrong position.

[0045] See Figure 1 and Figure 2 The battery pack provided in this embodiment includes:

[0046] A battery housing, wherein the battery housing is provided with a housing beam 1 that divides the internal space of the battery housing into a battery compartment and an electronic control compartment;

[0047] At least two electrical connection plugs 4 are installed and fixed on the box beam 1;

[0048] The plug-in protective cover 3 is attached to the side of the box beam 1 to cover each of the electrical connection plugs 4 in a synchronous manner with the box beam 1.

[0049] Specifically, see Figure 3 and Figure 4 The plug-in protective cover 3 includes at least two insulating covers 301 for shielding the electrical connection plug-in 4, and a plurality of intermediate connecting portions 302 connecting two adjacent insulating covers 301.

[0050] Traditional plug-in protective covers 3 require individual customization for each electrical connection plug 4, resulting in unique and non-interchangeable cover shapes. Workers must match each cover individually during assembly, easily leading to incorrect or missing installations. The plug-in protective cover 3 provided by this invention adopts a modular structure of "at least two insulating covers 301 + intermediate connecting part 302," allowing a single protective cover to simultaneously cover multiple electrical connection plugs 4. This eliminates the complexity of independently matching multiple covers, and workers only need to install one integrated cover instead of multiple individual covers, significantly reducing the probability of incorrect installation. Therefore, the plug-in protective cover 3 and battery pack provided by this invention effectively solve the problem of easily incorrect installation of existing protective covers 3.

[0051] In this embodiment, the insulating cover 301 encloses a plug-in receiving cavity 3011 for accommodating the electrical connection plug-in 4; wherein, the back surface and the bottom surface of the plug-in receiving cavity 3011 are both open structures. Generally, the electrical connection plug-in 4 is mounted and fixed on the crossbeam 1 of the battery box. When installing the plug-in protective cover, the back surface of the plug-in protective cover is fitted against the battery box (i.e., the back opening of the plug-in receiving cavity 3011 is covered by the crossbeam 1 of the box).

[0052] By using the aforementioned plug-in protective cover 3, multiple electrical connection plugs 4 fixed on the side of the box beam 1 can be centrally covered, reducing the risk of high voltage exposure.

[0053] In this embodiment, at least one of the plug-in receiving cavities 3011 has a clearance window 3012 on its front side for the conductive connector 2 to pass through. Optionally, the conductive connector 2 can be a cable or a copper busbar, which is not limited in this embodiment. This allows for protection on the top surface of the conductive connector 2 and on the side away from the box beam, improving the protective effect.

[0054] In this embodiment, generally, each clearance window 3012 allows one conductive connector 2 to pass through, avoiding the window 3012 from being too large and reducing the protective effect. When there are many conductive connectors 2 or they are arranged more closely, the size of most of the clearance windows 3012 can be appropriately increased so that the corresponding clearance window 3012 is large enough to allow two or more conductive connectors 2 to pass through.

[0055] At this point, several vertical reinforcing parts 3014 can be added at the clearance window 3012 where two or more conductive connectors 2 need to pass through. Each of the vertical reinforcing parts 3014 is used to separate two adjacent conductive connectors 2. It should be noted that the vertical reinforcing parts 3014 not only play a structural reinforcement role at the weak points of the window structure, but also separate two adjacent conductive connectors 2 to prevent short circuits or arc discharges, thereby improving electrical safety while saving space.

[0056] In this embodiment, the intermediate connecting portion 302 includes a vertical mounting portion 3021 and a horizontal reinforcing portion 3022 connecting two adjacent insulating covers 301. At least one of the intermediate connecting portions 302 is provided with a mounting hole 3021a for fasteners to pass through.

[0057] The vertical mounting part 3021 and the horizontal reinforcing part 3022 of the intermediate connecting part 302 are combined to ensure the installation strength and improve the bending resistance, avoiding the connection part from breaking due to external force. At the same time, the split design reduces the difficulty of injection molding and reduces the deformation problem caused by uneven shrinkage.

[0058] By using bolts or other fasteners to pass through the mounting holes 3021a and secure them to the crossbeam inside the battery box, the relative fixation between the plug-in protective cover 3 and the battery box can be achieved. The mounting holes 3021a are spaced apart between two adjacent insulating covers 301, and each insulating cover 301 has mounting holes 3021a on both sides to ensure the reliability of the connection of the insulating cover 301.

[0059] In this embodiment, at least one of the insulating cover 301 is provided with a notch for the wire harness to pass through and / or a wire securing hole 3013 for securing components (such as cable ties or clips) to be inserted. The notch for the wire harness to pass through is designed to facilitate the wire harness to pass into the insulating cover 301, while the wire securing hole 3013 is designed to facilitate the direct fixing of the wire harness to the plug-in protective cover 3 by the wire securing components.

[0060] Optionally, the notch-shaped wire-passing hole 3015 can be provided on the side of the insulating cover 301 and / or the front of the insulating cover 301, so that the wire harness can pass out from different directions. The wire-fixing hole 3013 can also be provided on the side of the insulating cover 301 and / or the front of the insulating cover 301, so that the wire-fixing component can be placed in a reasonable position. In one embodiment, when both the notch-shaped wire-passing hole 3015 and the wire-fixing hole 3013 are provided, the notch-shaped wire-passing hole 3015 can be provided on the side of the insulating cover 301, and the wire-fixing hole 3013 can be provided on the front of the insulating cover 301. The two are provided on different surfaces of the insulating cover 301 to avoid mutual interference, and at the same time, to avoid the wire-fixing component occupying space in the height direction, thereby improving space utilization. The front of the insulating cover 301 is the surface that is parallel to the side plane of the box beam, and the side of the insulating cover 301 is the surface that is perpendicular to the side of the box beam. Figure 3 As shown, the side of the insulating cover 301 is located at the top, and the front of the insulating cover 301 is perpendicular to its side.

[0061] In this embodiment, each insulating cover 301 and each intermediate connecting part 302 are integrally injection molded structures. The integral injection molding process eliminates connection gaps, improves overall insulation performance and waterproof / dustproof rating, while reducing the number of parts, lowering production and warehousing management costs, and making it suitable for large-scale standardized production.

[0062] Optionally, the inner wall of the plug-in receiving cavity 3011 is coated with a shielding coating. Coating the inner wall of the plug-in receiving cavity 3011 with a shielding coating can effectively suppress electromagnetic interference from the conductive connector 2, ensure the transmission stability of surrounding weak electrical signals (such as BMS communication lines), and the built-in design of the coating avoids external wear that could reduce shielding performance, thus improving long-term reliability.

[0063] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A plug-in protective cover, characterized in that, It includes at least two insulating covers (301) for shielding electrical connection plugs (4), and a plurality of intermediate connecting portions (302) connecting two adjacent insulating covers (301). At least one of the intermediate connecting parts (302) is provided with a mounting hole (3021a) through which a fastener passes.

2. The plug-in protective cover according to claim 1, characterized in that, The insulating cover (301) encloses and forms a plug-in receiving cavity (3011) for accommodating the electrical connection plug (4). The back side and bottom surface of the plug-in receiving cavity (3011) are both open structures.

3. The plug-in protective cover according to claim 2, characterized in that, The front of the plug-in receiving cavity (3011) is provided with a clearance window (3012) for the conductive connector (2) to pass through.

4. The plug-in protective cover according to claim 3, characterized in that, The avoidance window (3012) is provided with a plurality of vertical reinforcing parts (3014), each of the vertical reinforcing parts (3014) being used to separate two adjacent conductive connectors (2).

5. The plug-in protective cover according to claim 1, characterized in that, The intermediate connecting part (302) includes a vertical mounting part (3021) with the mounting hole (3021a) and a horizontal reinforcing part (3022) connecting two adjacent insulating covers (301).

6. The plug-in protective cover according to claim 2, characterized in that, The inner wall of the plug-in receiving cavity (3011) is coated with a shielding coating.

7. The plug-in protective cover according to claim 1, characterized in that, At least one of the insulating covers (301) is provided with a notch for wire harness to pass through (3015) and / or a wire securing hole (3013) for wire securing components to be inserted; when the notch for wire harness to pass through (3015) and the wire securing hole (3013) are provided at the same time, the notch for wire harness to pass through (3015) is provided on the side of the insulating cover (301), and the wire securing hole (3013) is provided on the front of the insulating cover (301).

8. The plug-in protective cover according to claim 1, characterized in that, Each of the insulating covers (301) and each of the intermediate connecting parts (302) are integral injection molded structures.

9. A battery pack, characterized in that, include: A battery box, wherein the battery box is provided with a box beam (1) that divides the internal space of the battery box into a battery compartment and an electronic control compartment. At least two electrical connection plugs (4), each of the electrical connection plugs (4) is installed and fixed on the box beam (1); The plug-in protective cover (3) according to any one of claims 1-8 is attached to the side of the box beam (1) to cooperate with the box beam (1) to simultaneously cover each of the electrical connection plugs (4).

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