Leak-proof storage battery pole insert structure
By designing a conical pole and a sealing joint structure in the lithium-ion starting power supply pole, combined with injection molding technology, the problems of poor sealing and cumbersome processes are solved, and higher airtightness and reliability are achieved, and the disadvantages are reduced. Rate.
Patent Information
- Application Number
- CN202420314564.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-02-20
AI Technical Summary
There is a problem of poor sealing during the production process of existing lithium-ion starting power supply pole, resulting in failure of airtightness, cumbersome processes and high defect rate.
Design a leak-proof battery pole insert structure, adopts a conical pole design, with stepped holes inside, and a sealed and engaging structure at the bottom, equipped with a engaging groove, a sealed and engaging groove and a ladder groove. It is molded by injection molding. Fix the sealing ring to create higher airtightness and reliability.
The subsequent glue coating and tape wrapping operations are reduced, the airtightness and reliability of the pole column are improved, the defect rate is reduced, and the production process is simplified.
Smart Images
Figure CN222355257U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pole used in the production process of a lithium-ion starting power supply, in particular to a leakage-proof battery pole insert structure. Background Art
[0002] The production methods of the terminals currently used in battery casings can be divided into the following three types:
[0003] 1. Insert injection molding: This method can easily cause gaps between the metal and plastic joints due to shrinkage and inconsistent thermal conductivity between the metal and plastic parts when the environment changes, resulting in sealing failure. Currently, epoxy resin is usually used to seal the joints for secondary sealing. Adding more control points will result in defects.
[0004] 2. Split assembly (non-insert molding). In this case, the outer ring and inner ring of the shell need to be sealed by metal parts through a locking seal ring. The production cycle is long and manual operation is required.
[0005] 3. Add wrapping tape around the metal parts before insert molding. This method ensures the airtightness of the shell by melting part of the wrapping tape during injection molding. However, when the wrapping tape is completely melted, it may cause airtightness failure.
[0006] To this end, it is necessary to develop a new pole injection molding structure to reduce the required steps, eliminate subsequent operations such as glue coating or tape wrapping, which can easily lead to product airtightness failure, and improve the product yield. Utility Model Content
[0007] In order to solve the above problems, the present invention adopts the following technical solutions:
[0008] A leak-proof battery pole insert structure includes a pole, a sealing ring and an injection molded part, characterized in that the upper part of the pole is designed with a conical structure, a stepped hole is opened inside and extends to the lower part of the pole, the lower part of the pole is designed with a sealed snap-fit structure, the outer edge of which is designed with a downward-extending edge, and a snap-fit groove, a sealed snap-fit groove and a ladder groove are formed on the inside; the sealing ring is tightly arranged in the sealed snap-fit groove; the injection molded part is molded and fixed to the lower part of the pole by injection molding to fill the snap-fit groove, the ladder groove and the sealed snap-fit groove provided with the sealing ring.
[0009] Preferably, the engaging groove and the sealing engaging groove are both designed to be perfect circles and formed at the lower part of the pole.
[0010] Preferably, the sealing ring can be made of EPDM or fluororubber.
[0011] Preferably, the pole is equipped with a corresponding mold so that the injection molded part can be formed and fixed at its lower part.
[0012] Preferably, the depth of the sealing engagement groove should be greater than the depth of the ladder groove.
[0013] Preferably, the sealing engaging groove is located between the engaging groove and the ladder groove on the plane.
[0014] Preferably, the sealing ring needs to be a circular sealing ring.
[0015] Compared with the prior art, the advantages of the present invention are that: while meeting the basic structural requirements for the use of the pole, the present invention also makes certain structural improvements, that is, compared with the previous poles such as the glue protection operation and tape winding operation described in the background technology, the problems of complicated processes and high defective rates have been significantly improved. Specifically, the lower part of the pole is designed and formed with a snap-fit groove, a sealing snap-fit groove and a ladder groove, wherein the sealing snap-fit groove is provided with a sealing ring in advance, and the sealing ring on the pole is fixed in place by an injection molded part. It is worth noting that the injection molded part is directly injection molded on the lower part of the pole. This method allows the plastic to be well integrated and filled into each groove, and to wrap the sealing ring, and the molded injection molded part is also a part of the auxiliary pole installation. Such a design can make the pole more reliable and airtight, and reduce the tediousness and uncertainty of manual glue coating or tape winding. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall assembly of the utility model;
[0017] Figure 2 This is a schematic diagram of the front cross-section structure of the pole of the utility model;
[0018] Figure 3 and Figure 4 All of them are schematic diagrams of the structure of the pole of the present utility model. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiment described is only one embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] like Figures 1 to 4As shown, the utility model is a leak-proof battery pole insert structure, which includes a pole (1), a sealing ring (2) and an injection molded part (3). The upper part (10) of the pole (1) is designed in a conical structure, and a stepped hole (100) is provided inside the pole (1) to extend and connect to the lower part (11) of the pole (1). The lower part (11) of the pole (1) is designed in a sealed clamping structure, and its outer edge (110) is designed to extend downward, and a clamping groove (111), a sealing clamping groove (112) and a ladder groove (113) are formed on the inner side; the sealing ring (2) is tightly arranged in the sealing clamping groove (112); the injection molded part (3) is fixed on the lower part (11) of the pole (1) by injection molding to fill the clamping groove (111), the ladder groove (113) and the sealing clamping groove (112) provided with the sealing ring (2).
[0021] The said engaging groove (111) and the sealing engaging groove (112) are both designed to be perfectly circular and formed at the lower part of the pole (1), and the depth of the sealing engaging groove (112) should be greater than the depth of the ladder groove (113). Such a design can improve the efficiency of sealing and blocking by deepening the depth. The said engaging groove (111) can be engaged and positioned with the injection molded part after injection molding. The outer edge (110) is designed to extend downward to allow the pole (1) and the molded injection molded part (3) to achieve the effect of reinforcement and limiting, thereby increasing the stability of the utility model. It can be further explained that the said pole (1) is equipped with a corresponding mold to allow the injection molded part (3) to be molded and fixed at the lower part (11) of the pole (1). Only by using a compliant mold can the liquefied plastic be injection molded on the pole (1), and the strength of the integrally molded injection molded part (3) is also sufficient.
[0022] The sealing ring (2) is made of EPDM or fluororubber. Since these materials have excellent aging resistance such as ozone resistance, heat resistance, weather resistance, etc., they are very suitable for the field of automobile seals, etc. Therefore, the sealing ring (2) made of this material can greatly improve the service life of the utility model and avoid premature aging that affects the air tightness.
[0023] It is noteworthy that the injection molded part (3) of the present invention is directly injection molded on the lower part of the pole (1). This method allows the liquid plastic to be well integrated and filled into each groove, and to wrap the sealing ring (2). However, it should be noted that the sealing ring (2) needs to be a circular sealing ring. Such a structure enables the injection molded part (3) after molding to also be a part of the auxiliary pole (1) installation, making the pole (1) more reliable and airtight, and reducing the tediousness and uncertainty of manual gluing or wrapping.
[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0025] Furthermore, 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.
[0026] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0027] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.
Claims
1. A leak-proof battery pole insert structure, comprising a pole (1), a sealing ring (2) and an injection molded part (3), characterized in that: The upper part (10) of the pole (1) is designed in a conical structure, and a stepped hole (100) is provided inside the pole (1) and extends to connect to the lower part (11) of the pole (1); the lower part (11) of the pole (1) is designed in a sealed snap-fit structure, and its outer edge (110) is designed to be a trimmed edge extending downward, and a snap-fit groove (111), a sealed snap-fit groove (112) and a ladder groove (113) are formed inside; the sealing ring (2) is tightly arranged in the sealed snap-fit groove (112); the injection molded part (3) is molded and fixed on the lower part (11) of the pole (1) by injection molding to fill the snap-fit groove (111), the ladder groove (113) and the sealed snap-fit groove (112) provided with the sealing ring (2).
2. The leak-proof battery pole insert structure according to claim 1, characterized in that: The snap-fit groove (111) and the sealing snap-fit groove (112) are both designed to be perfectly circular and are formed at the lower part of the pole (1).
3. The leak-proof battery pole insert structure according to claim 1, characterized in that: The sealing ring (2) is made of EPDM or fluororubber.
4. The leak-proof battery pole insert structure according to claim 1, characterized in that: The pole (1) is equipped with a corresponding mold to allow the injection molded part (3) to be molded and fixed at its lower part (11).
5. The leak-proof battery pole insert structure according to claim 1, characterized in that: The depth of the sealing engaging groove (112) should be greater than the depth of the ladder groove (113).
6. The leak-proof battery pole insert structure according to claim 1, characterized in that: The sealing engaging groove (112) is located on a plane between the engaging groove (111) and the ladder groove (113).
7. The leak-proof battery pole insert structure according to claim 1 or claim 3, characterized in that: The sealing ring (2) needs to be a circular sealing ring.