Plastic surface cover and battery pack

Abstract

The utility model particularly discloses a plastic surface cover and a battery pack, and relates to the technical field of battery packs, the plastic surface cover comprises a cover body, a power terminal, a wiring screw and a wiring flange nut, and the cover body is provided with a through hole; the power terminal is arranged in the through hole and is integrally injection-molded with the cover body, the upper end of the power terminal is provided with an internal thread hole, and the lower end of the power terminal is provided with an external thread; the wiring screw is in threaded connection with the internal thread hole, so that the power terminal is connected with a power line; the wiring flange nut is in threaded connection with the external thread, so that the power terminal is connected with the internal copper bar, the plastic surface cover according to the embodiment of the utility model is simple in process, few in parts, not easy to loosen in use or transportation, and strong in product competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a plastic cover and battery pack. Background Technology

[0002] As a core component of energy storage devices, battery packs play a crucial role in modern technology. Their design, manufacturing, and application involve multiple fields, and with continuous technological advancements, through optimized structure, improved performance, and enhanced safety, battery packs will play an even greater role in the future energy and transportation sectors.

[0003] The power terminals of the battery pack are fixed on the plastic cover. Currently, the common fixing method is to use four corner press-fit studs and then screws, or the power terminals themselves have threads and are fixed with nuts. The former fixing method is complicated and has many parts, while the latter fixing method is easy to loosen during use or transportation, resulting in weak product competitiveness. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a plastic face cover that is simple to manufacture, has few parts, and is not easily loosened during use or transportation, thus possessing strong product competitiveness.

[0005] This utility model also proposes a battery pack including the above-mentioned plastic cover.

[0006] According to an embodiment of the present invention, a plastic cover includes a cover body, a power terminal, a wiring screw, and a wiring flange nut. The cover body has a through hole. The power terminal is disposed in the through hole and is integrally injection molded with the cover body. The upper end of the power terminal has an internal threaded hole, and the lower end has an external threaded hole. The wiring screw is threadedly connected to the internal threaded hole to connect the power terminal to a power line. The wiring flange nut is threadedly connected to the external threaded hole to connect the power terminal to an internal copper busbar.

[0007] The plastic cover according to the embodiment of this utility model has at least the following beneficial effects: since the power terminal is located in the through hole and is integrally injection molded with the cover body, the fastening strength of the power terminal is guaranteed, the appearance is neat, the cover does not need to be riveted with studs, reducing the number of parts, avoiding the risk of nut loosening, simplifying the production process, reducing costs, beautifying the appearance, and improving the competitiveness of the product.

[0008] According to one embodiment of the present invention, the outer peripheral wall of the power terminal is knurled.

[0009] According to one embodiment of the present invention, the power terminal is made of H62 brass.

[0010] According to one embodiment of the present invention, the surface of the power terminal is nickel-plated.

[0011] According to one embodiment of the present invention, the wiring screw is made of SWRCH22A.

[0012] According to one embodiment of the present invention, the surface of the wiring screw is plated with environmentally friendly colored zinc.

[0013] According to one embodiment of the present invention, the wiring flange nut is made of SWRCH22A.

[0014] According to one embodiment of the present invention, the surface of the wiring flange nut is plated with environmentally friendly colored zinc.

[0015] According to one embodiment of the present invention, the cover is made of PC-540.

[0016] The battery pack according to an embodiment of the present invention includes a plastic cover according to an embodiment of the present invention.

[0017] The battery pack according to the embodiments of this utility model has at least the following beneficial effects: due to the strong competitiveness of the plastic cover, the overall competitiveness of the battery pack is improved.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of a plastic face cover according to an embodiment of the present invention;

[0021] Figure 2 This is an exploded view of a plastic face cover according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of a plastic face cover according to an embodiment of the present invention;

[0023] Figure 4 This is an exploded view of a plastic face cover according to an embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional view of a plastic cover according to an embodiment of the present invention.

[0025] Figure label:

[0026] Plastic faceplate 1000;

[0027] Cover body 100; through hole 110;

[0028] Power terminal 200; internal thread 210; external thread 220;

[0029] 300mm wiring screw;

[0030] 400 flange nut. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, inside, outside, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] As a core component of energy storage devices, battery packs play a crucial role in modern technology. Their design, manufacturing, and application involve multiple fields, and with continuous technological advancements, through optimized structure, improved performance, and enhanced safety, battery packs will play an even greater role in the future energy and transportation sectors.

[0036] The power terminals of the battery pack are fixed on the plastic cover. Currently, the common fixing method is to use four corner press-fit studs and then screws, or the power terminals themselves have threads and are fixed with nuts. The former fixing method is complicated and has many parts, while the latter fixing method is easy to loosen during use or transportation, resulting in weak product competitiveness.

[0037] Therefore, this utility model proposes a plastic faceplate 1000, as detailed in the attached drawings of the specification. Figures 1 to 5 As shown.

[0038] Reference Figure 1 and Figure 2 As shown, a plastic cover 1000 according to one embodiment of the present invention includes a cover body 100, a power terminal 200, a wiring screw 300, and a wiring flange nut 400. The cover body 100 has a through hole 110. In one embodiment, the through hole 110 is a circular hole. It should be noted that the size of the through hole 110 is not specifically limited here and can be set as needed.

[0039] Continue to refer to Figure 1 and Figure 2 As shown, the power terminal 200 is disposed in the through hole 110 and is integrally injection molded with the cover 100. That is, the power terminal 200 is directly embedded into the cover 100 during the injection molding process. During injection molding, the power terminal 200 is fixed on the pin and placed inside the mold. As plastic is injected, the power terminal 200 is completely covered and tightly bonded to the plastic. It can be understood that the portion of the cover 100 in which the power terminal 200 is embedded forms the through hole 110.

[0040] Reference Figure 2 As shown, the upper end of the power terminal 200 is provided with an internal threaded hole 210, and the lower end of the power terminal 200 is provided with an external thread 220. It should be noted that the diameter and depth of the internal threaded hole 210 are not specifically limited here. In one embodiment, the internal threaded hole 210 of the power terminal 200 is an M8 threaded hole, and the external thread 220 of the power terminal 200 is an M8 external thread. (Refer to...) Figure 1 , Figure 2 and Figure 5 As shown, the wiring screw 300 is threaded into the internal threaded hole 210 to connect the power terminal 200 to the power line. (Refer to...) Figure 3 , Figure 4 and Figure 5 As shown, the wiring flange nut 400 is threaded with the external thread 220 to connect the power terminal 200 to the internal copper busbar.

[0041] Understandably, since the power terminal 200 is located in the through hole 110 and is integrally injection molded with the cover 100, the fastening strength of the power terminal 200 is guaranteed, the appearance is clean, the cover does not require rivet studs, reducing the number of parts, avoiding the risk of nut loosening, simplifying the production process, reducing costs, beautifying the appearance, and improving the competitiveness of the product.

[0042] Reference Figure 2 and Figure 5As shown, in one embodiment of this utility model, the outer peripheral wall of the plastic cover 1000 and the power terminal 200 are knurled. It should be noted that knurling is a metal surface processing technique that enhances anti-slip properties by pressing specific patterns or raised designs onto the surface of a metal workpiece. It should also be noted that after knurling, the outer peripheral wall of the power terminal 200 forms a mesh-like texture. It is understood that after knurling, the power terminal 200 can bond more tightly to the plastic during injection molding, improving the precision and strength of the connection.

[0043] In one embodiment of this utility model, the plastic cover 1000 has a power terminal 200 made of H62 brass. It should be noted that H62 brass is a common brass alloy, its main components being copper and zinc, with a copper content of 60.5% to 63.5% and the remainder being zinc. The impurity content does not exceed 0.5%, and it possesses good electrical conductivity. Therefore, the power terminal 200 made of H62 brass exhibits good conductivity. In one embodiment, the surface of the power terminal 200 is nickel-plated. This further improves the conductivity of the power terminal 200 and prevents oxidation.

[0044] In one embodiment of this utility model, the plastic faceplate 1000 and the wiring screws 300 and 400 are both made of SWRCH22A. It should be noted that SWRCH22A is a high-quality carbon structural steel with good cold working properties and high mechanical properties, making it an excellent material for manufacturing screws and nuts.

[0045] In one embodiment, the surface of the terminal screw 300 and the surface of the terminal flange nut 400 are plated with environmentally friendly colored zinc. It should be noted that the main purpose of plating the surfaces of the terminal screw 300 and the terminal flange nut 400 with environmentally friendly colored zinc is to improve corrosion resistance, extend service life, enhance aesthetics, meet environmental protection requirements, and improve surface finish.

[0046] One embodiment of this utility model includes a plastic cover 1000, the cover body 100 of which is made of PC-540. It should be noted that PC-540 is a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer, a thermoplastic plastic formed by combining polycarbonate and acrylonitrile-butadiene-styrene copolymer (ABS). It combines the moldability of ABS with the mechanical properties, impact strength, temperature resistance, and UV resistance of PC, and can be widely used in automotive interior parts, business machines, communication equipment, home appliances, and lighting equipment. It is understood that the cover body 100 made of PC-540 is low in cost and has good insulation properties.

[0047] This utility model also proposes a battery pack, which includes the plastic cover 1000 of the present utility model embodiment.

[0048] In one embodiment of the present invention, the overall competitiveness of the battery pack is improved because the plastic cover 1000 has strong product competitiveness.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A plastic faceplate, characterized in that, include: The cover has a through hole; A power terminal is provided in the through hole and is integrally injection molded with the cover. The upper end of the power terminal is provided with an internal thread hole and the lower end is provided with an external thread. A wiring screw is threaded into the internal threaded hole to connect the power terminal to the power line; A wiring flange nut is connected to the external thread to connect the power terminal to the internal copper busbar.

2. The plastic cover according to claim 1, characterized in that, The outer peripheral wall of the power terminal is knurled.

3. The plastic cover according to claim 1, characterized in that, The power terminals are made of H62 brass.

4. The plastic cover according to claim 3, characterized in that, The surface of the power terminal is nickel-plated.

5. The plastic cover according to claim 1, characterized in that, The wiring screw is made of SWRCH22A.

6. The plastic cover according to claim 5, characterized in that, The surface of the wiring screw is plated with environmentally friendly colored zinc.

7. The plastic cover according to claim 1, characterized in that, The wiring flange nut is made of SWRCH22A.

8. The plastic cover according to claim 7, characterized in that, The surface of the wiring flange nut is plated with environmentally friendly colored zinc.

9. The plastic cover according to claim 1, characterized in that, The cover is made of PC-540.

10. A battery pack, characterized in that, Includes the plastic cover as described in any one of claims 1 to 9.

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