Lithium battery cover plate made of PPS (polyphenylene sulfite) through rubber coating and injection molding

Abstract

The utility model relates to the technical field of lithium battery cover plates, and discloses a PPS (polyphenylene sulfite) rubber coating injection molding lithium battery cover plate, which comprises a cover plate body, a plurality of elastically telescopic poles are connected to the middle of the cover plate body relative to a lithium battery mounting cavity on a base body, one end of the cover plate body is connected with a connecting plate, and the other end of the cover plate body is connected with a fixing plate. The two sides of the free end of the connecting plate are respectively connected with a side plate, a limiting shaft capable of detachably mounting the battery cover plate body and the base body is connected between the opposite side plates, and the other end of the cover plate body is connected with a locking assembly capable of limiting and locking the cover plate body and the base body. Compared with the prior art, the cover plate has the advantages that the cover plate body is convenient to disassemble and assemble, and the cover plate is convenient to quickly limit and lock.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cover technology, specifically to a lithium battery cover made by PPS overmolding injection molding. Background Technology

[0002] A lithium battery cover facilitates the sealing of the lithium battery casing, protecting the internal cell circuitry and electrolyte from damage.

[0003] Existing lithium battery covers made of PPS overmolded by injection molding mostly use locking screws to limit the installation of the cover to the housing on both sides, which is relatively troublesome. In addition, since the cover separates from the housing after being opened, it is easy to lose the cover. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem this utility model aims to solve is that the installation of the locking screws is relatively troublesome, and the cover plate and the housing are set independently, making it easy for the cover plate to be lost after opening.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a lithium battery cover plate made of PPS overmolded by injection molding, comprising a cover plate body, wherein a plurality of elastically retractable pole posts are connected to the middle part of the cover plate body relative to the lithium battery mounting cavity on the base, a connecting plate is connected to one end of the cover plate body, side plates are respectively connected to both sides of the free end of the connecting plate, a limiting shaft is connected between the side plates to allow for detachable installation and removal of the battery cover plate body from the base, and a locking component is connected to the other end of the cover plate body for limiting and locking the cover plate body from the base.

[0008] Furthermore, the locking assembly includes a limiting groove connected to the base, a through groove connected to the cover plate body, a limiting block that slidably connects to the through groove and cooperates with the limiting groove, a spring connected to the limiting block and the side of the through groove away from the limiting groove, a slider connected to the top of the limiting block, the slider sliding through the cover plate body and a push plate connected to the end.

[0009] Furthermore, the cover plate is provided with a sliding groove, which communicates with the through groove and slides with the slider.

[0010] Furthermore, the base is provided with an installation cavity, the width of which matches the width of the connecting plate. A limiting hook is connected to the base within the installation cavity. The width of the limiting hook matches the width of the limiting shaft, and the length of the limiting hook is less than the distance between the side plates. The limiting hook has a U-shaped structure. One end of the limiting hook near the base has a cylindrical hole that matches the limiting shaft, and the other end has a gap with the base.

[0011] Furthermore, the limiting shaft is a semi-cylindrical structure, and the radius of the limiting shaft is not greater than the distance of the gap.

[0012] Furthermore, the side plate is provided with guide posts on its outer side, and the mounting cavity is provided with guide grooves that cooperate with the guide posts, with one end of the guide groove penetrating the base.

[0013] Furthermore, a flexible sealing ring is connected to the bottom end of the cover plate body on the outside of the pole post. The sealing ring is sealed with the base when the locking assembly drives the cover plate body to limit and lock the base.

[0014] III. Beneficial Effects

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] The detachable installation between the limiting shaft and the base facilitates the disassembly and replacement of the cover plate; the locking assembly facilitates the positioning and locking between the cover plate body and the base, thereby positioning the lithium battery with the electrode post, ensuring good contact of the lithium battery for stable power supply. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a lithium battery cover plate made of PPS overmolding and injection molding according to this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of a lithium battery cover plate made of PPS overmolding and injection molding according to this utility model.

[0019] Figure 3 This is a schematic diagram of the main cross-sectional structure of a lithium battery cover plate made of PPS overmolding and injection molding according to this utility model.

[0020] Figure 4 This is a schematic diagram of the main cross-sectional structure of a lithium battery cover plate made of PPS overmolded and injection molded in accordance with this utility model, when it is fitted with a substrate.

[0021] Figure 5 yes Figure 4 A magnified structural diagram of A in the diagram.

[0022] Figure 6 This is a schematic diagram of the guide groove on the substrate of a lithium battery cover plate made of PPS through injection molding according to this utility model.

[0023] As shown in the figure: 1. Cover plate body, 2. Pole post, 3. Connecting plate, 4. Side plate, 5. Limiting shaft, 6. Limiting groove, 7. Through groove, 8. Limiting block, 9. Spring, 10. Push plate, 11. Slider, 12. Slide groove, 13. Mounting cavity, 14. Limiting hook, 15. Cylindrical hole, 16. Guide post, 17. Guide groove, 18. Sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] In order to achieve the installation of the cover plate body 1, combined with the attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A lithium battery cover plate injection molded with PPS overmolding includes a cover plate body 1. Several elastically retractable terminal posts 2 are connected to the middle of the cover plate body 1 relative to a lithium battery mounting cavity 13 on a substrate. A connecting plate 3 is connected to one end of the cover plate body 1. Side plates 4 are respectively connected to both sides of the free end of the connecting plate 3. A limiting shaft 5, which allows for detachable installation and removal of the battery cover plate body 1 from the substrate, is connected between the side plates 4. The limiting shaft 5 has a semi-cylindrical structure. The substrate has a mounting cavity 13, the width of which matches the width of the connecting plate 3. A limiting hook 14 is connected inside the mounting cavity 13. The width of the limiting hook 14 matches the width of the limiting shaft 5, and the length of the limiting hook 14 is less than the distance between the side plates 4. The limiting hook 14 has a U-shaped structure. One end of the limiting hook 14 near the base has a cylindrical hole 15 that matches the limiting shaft 5. The other end has a gap with the base, and the radius of the limiting shaft 5 is not greater than the distance of the gap. A guide post 16 is connected to the outer side of the side plate 4. A guide groove 17 that matches the guide post 16 is connected to the mounting cavity 13. One end of the guide groove 17 passes through the base.

[0027] In order to ensure that the cover plate can be locked and positioned against the base, combined with the attached Figure 3The other end of the cover plate body 1 is connected to a locking assembly for limiting and locking the cover plate body 1 and the base. The locking assembly includes a limiting groove 6 connected to the base. A through groove 7 is connected to the cover plate body 1. A limiting block 8 that cooperates with the limiting groove 6 is slidably connected in the through groove 7. A spring 9 is connected to the limiting block 8 and the side of the through groove 7 away from the limiting groove 6. A slider 11 is connected to the top of the limiting block 8. The slider 11 slides through the cover plate body 1 and is connected to a push plate 10 at its end. A sliding groove 12 is connected to the cover plate body 1. The sliding groove 12 communicates with the through groove 7 and slides with the slider 11.

[0028] Example 2

[0029] Based on Example 1, combined with Appendix Figure 1 , Figure 2 , Figure 3 and Figure 4 The bottom end of the cover plate body 1 is connected to the outside of the electrode post 2 with a flexible sealing ring 18. When the locking assembly drives the cover plate body 1 to limit and lock the base, the sealing ring 18 seals with the base, thereby facilitating the introduction of external moisture and affecting the operation of the lithium battery.

[0030] The specific usage method is as follows:

[0031] First, the connecting plate 3 slides inward through the guide post 16 and the through end of the guide groove 17 until it reaches the leftmost end of the guide groove 17. At this time, the gap between the limiting shaft 5 and the limiting hook 14 and the base is engaged. Then, the connecting plate 3 is driven to slide upward along the direction of the guide groove 17 until the top of the limiting shaft 5 abuts against the base. At this time, the limiting shaft 5 is aligned with the gap. Then, the connecting plate 3 is pulled to the right, and the connecting plate 3 drives the limiting shaft 5 to enter the cylindrical hole 15. At this time, the connecting plate 3 drives the cover plate body 1 to rotate with the limiting shaft 5 as the axis, thus completing the installation of the limiting shaft 5. Since the limiting shaft 5 is a semi-cylindrical structure, as the limiting shaft 5 rotates in the cylindrical hole 15, the limiting shaft 5 cannot pass through the gap, thereby realizing the installation of the cover plate body 1.

[0032] Until the locking assembly is locked, pull the push plate 10 to the right. The push plate 10 drives the limit block 8 to slide into the through groove 7 through the slider 11. At this time, the spring 9 is compressed and stored until the connecting plate 3 abuts the base. Release the push plate 10. Under the reset action of the spring 9, the limit block 8 is driven to cooperate with the limit groove 6 to achieve locking.

[0033] Meanwhile, the sealing ring 18 seals with the base when the locking assembly drives the cover plate body 1 to limit and lock the base, thereby preventing external moisture from entering the lithium battery mounting cavity 13 and affecting its use.

[0034] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A lithium battery cover plate injection molded with PPS overmolding, comprising a cover plate body (1), wherein a plurality of elastically extendable terminal posts (2) are connected to the middle of the cover plate body (1) relative to the lithium battery mounting cavity (13) on the substrate, characterized in that: One end of the cover plate body (1) is connected to a connecting plate (3), and the two sides of the free end of the connecting plate (3) are respectively connected to side plates (4). A limiting shaft (5) is connected between the side plates (4) to allow for detachable installation and removal of the battery cover plate body (1) from the base. The other end of the cover plate body (1) is connected to a locking component that can be used to limit and lock the cover plate body (1) to the base.

2. A lithium battery cover plate injection molded with PPS overmolding according to claim 1, characterized in that: The locking assembly includes a limiting groove (6) connected to the base, and a through groove (7) connected to the cover plate body (1). A limiting block (8) that cooperates with the limiting groove (6) is slidably connected in the through groove (7). A spring (9) is connected to the limiting block (8) and the side of the through groove (7) away from the limiting groove (6). A slider (11) is connected to the top of the limiting block (8). The slider (11) slides through the cover plate body (1) and is connected to a push plate (10) at its end.

3. A lithium battery cover plate injection molded with PPS overmolding according to claim 2, characterized in that: The cover plate body (1) is provided with a sliding groove (12), which is connected to the through groove (7) and slides with the slider (11).

4. A lithium battery cover plate injection molded with PPS overmolding according to claim 1, characterized in that: The base is provided with an installation cavity (13), the width of which matches the width of the connecting plate (3), and a limiting hook (14) is connected to the base in the installation cavity (13). The width of the limiting hook (14) matches the width of the limiting shaft (5) and the length of the limiting hook (14) is less than the distance between the side plates (4). The limiting hook (14) has a U-shaped structure. One end of the limiting hook (14) near the base is provided with a cylindrical hole (15) that matches the limiting shaft (5), and the other end has a gap with the base.

5. A lithium battery cover plate injection molded with PPS overmolding according to claim 4, characterized in that: The limiting shaft (5) is a semi-cylindrical structure, and the radius of the limiting shaft (5) is not greater than the distance of the gap.

6. A lithium battery cover plate injection molded with PPS overmolding according to claim 5, characterized in that: The side plate (4) is provided with a guide post (16) connected to the outside of the side plate (4), and the mounting cavity (13) is provided with a guide groove (17) that cooperates with the guide post (16). One end of the guide groove (17) penetrates the base.

7. A lithium battery cover plate injection molded with PPS overmolding according to claim 1, characterized in that: The bottom end of the cover plate body (1) is connected to the outside of the pole post (2) with a flexible sealing ring (18). The sealing ring (18) is sealed with the base when the locking assembly drives the cover plate body (1) to limit and lock the base.

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