Large connecting cover and lead-acid battery shell

Abstract

A large connecting cover and a lead-acid battery shell are provided, the large connecting cover comprises a cover body, a pair of grooves are formed on the cover body, the grooves are distributed at two ends of the cover body, a boss is arranged at the front end of the groove bottom of each groove, an assembly groove is arranged on each boss, an end seat is inserted in each assembly groove, a terminal is sleeved on each end seat, and glue is filled in each groove. According to the technical scheme of the utility model, the end seat and the lower end of the terminal are fixed in the groove, and through the glue filling mode, the appearance attractiveness of the large cover is improved, and the firmness of the fixed end seat is improved through the glue fixing mode. Moreover, the mode of separated injection molding of the end seat and the large cover reduces the injection molding difficulty of the large cover, improves the yield during injection molding, and facilitates the connection and fixation operation of the terminal and the end seat in the later period.

Description

Technical Field

[0001] The utility model relates to the field of lead-acid batteries, in particular to a connection between a large cover and a lead-acid battery shell. Background Art

[0002] At present, the square ends of lead-acid batteries generally use square copper ends and square lead ends, that is, when one of the terminals is connected with a wire, the axial direction of the connecting screw on it is horizontal, while the axial direction of the connecting screw connected to the other terminal is vertical. The existing structure for installing the square copper end is to provide a structure on the large cover that can both position the square copper end and improve the stability of the square copper end. The structure is as follows Figure 5 As shown, the two ends of the large cover 5 structure are respectively formed with a pair of terminal seats 50 by injection molding. The front end of the terminal seat is provided with a card slot. When the terminal is connected to it, one end of the terminal is clamped in the card slot, so that the terminal is connected by clamping. However, this structure has certain disadvantages. First, due to the complex structure during injection molding, the mold cost of the large cover is increased, and the yield rate is also reduced. Second, the square copper end needs to be fastened on the large cover during installation. If it is not fastened, it will directly cause the terminal to be skewed, affecting the stability of the terminal. In long-term use, the square copper end is easy to fall off. The square lead end is also a commonly used terminal type in lead-acid batteries. The addition of the square lead end increases the terminal types of the battery, which will increase the terminal cost invisibly. Utility Model Content

[0003] The utility model provides a connection between a large cover and a lead-acid battery shell to solve the above-mentioned deficiencies of the prior art, can provide positioning elements for the installation of terminals and prevent skew, can save battery production costs and improve the stability of terminals during use.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A large connecting cover includes a cover body, a pair of grooves are formed on the cover body, the grooves are distributed at both ends of the cover body, a boss is provided at the front end of the bottom of the groove, an assembly groove is provided on the boss, an end seat is inserted in the assembly groove, a terminal is sleeved on the end seat, and the groove is filled with glue to fix the lower end of the end seat and the terminal in the groove. The filling of glue improves the appearance of the large cover, and the fixation of the end seat by glue improves the firmness of the end seat after fixation. In addition, this method of separate injection molding of the end seat and the large cover reduces the difficulty of injection molding of the large cover and improves the yield rate during injection molding, and facilitates the connection and fixation operation of the terminal and the end seat in the later stage.

[0006] Furthermore, the assembly groove is in a T-shaped structure, and this structural arrangement improves the stability when the end seat is fixed.

[0007] Furthermore, one end of the assembly groove is open, which facilitates the glue to flow into the assembly groove through the opening, thereby ensuring the fixing stability of the end seat.

[0008] Furthermore, the inner end of one of the assembly grooves is open, and the outer end of the other assembly groove is open. Through the anti-foolproof setting, it is convenient for the operator to connect the connecting screw horizontally or vertically. Moreover, this setting method can increase the connection stability of the main force-bearing parts by adjusting the assembly groove posture under different connecting screw postures.

[0009] Furthermore, a T-shaped plug-in block is formed at the lower end of the end seat, and the T-shaped plug-in block is inserted into the assembly groove to adapt to the structure of the assembly groove.

[0010] Furthermore, a middle block is formed at the upper end of the T-shaped plug. The setting of the middle block facilitates the glue to enter the gap between the T-shaped plug and the assembly groove. At the same time, the glue injected into the groove can wrap the middle block, thereby further improving the fixing effect of the lower end of the end seat.

[0011] Furthermore, a seat body is formed at the upper end of the middle block, and a circular groove is provided on the seat body. The length and width of the seat body are larger than the length and width of the middle block, and the strength of the seat body is improved by this arrangement. The circular groove plays a role of avoiding the lower end of the vertically fixed connecting screw, thereby facilitating the fixing operation of the connecting screw.

[0012] Furthermore, a pair of convex parts are provided at one end of the upper end surface of the seat body, and a convex strip is formed at the other end of the upper end surface of the seat body. A vertical hole is provided on the terminal, and a pair of transverse holes are provided on the vertical hole. The arrangement of the convex strip and the vertical hole can limit the nut placed on the upper end of the seat body and placed inside the terminal and arranged transversely in the axial direction, which can prevent the connection nut from moving out of the terminal and improve the stability of the connection screw after connection.

[0013] A lead-acid battery shell comprises the connecting large cover and a battery tank arranged at the lower end of the connecting large cover. The shell has low cost and strong adaptability.

[0014] The advantages of the above technical solution are:

[0015] The utility model can effectively solve the problems of the terminal having no positioning element, the terminal being skewed, the large cover having high injection molding cost, the terminal having low stability during use, and the terminal having many types. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 A three-dimensional structural diagram of a lead-acid battery housing is shown.

[0018] Figure 2 A three-dimensional structural diagram of the connected large cover is shown.

[0019] Figure 3 Shows the three-dimensional structure of the end seat Figure 1 .

[0020] Figure 4 Shows the three-dimensional structure of the end seat Figure 2 .

[0021] Figure 5 A three-dimensional structural diagram of an existing large cover connection is shown. DETAILED DESCRIPTION

[0022] like Figure 1~Figure 4 As shown, a large connecting cover includes a cover body 2, a pair of grooves 20 are formed on the cover body 2, and the grooves 20 are distributed at both ends of the cover body 2. A boss 21 is provided at the front end of the bottom of the groove 20, and an assembly groove 22 is provided on the boss 21. An end seat 3 is inserted in the assembly groove 22, and a terminal 4 is sleeved on the end seat 3. The groove 20 is filled with glue to fix the lower ends of the end seat 3 and the terminal 4 in the groove 20.

[0023] In some embodiments, the assembly groove 22 is in a T-shaped structure, and one end of the assembly groove 22 is open, wherein the inner end of one assembly groove 22 is open, and the outer end of the other assembly groove 22 is open.

[0024] In some embodiments, a T-shaped plug 30 is formed at the lower end of the end seat 3, and the T-shaped plug 30 is inserted into the assembly groove 22. A middle block 31 is formed at the upper end of the T-shaped plug 30, and a seat body 32 is formed at the upper end of the middle block 31. A circular groove 35 is opened on the seat body 32.

[0025] In some embodiments, a pair of protrusions 33 are formed at one end of the upper end surface of the seat body 32 , and a convex strip 34 is formed at the other end of the upper end surface of the seat body 32 .

[0026] In some embodiments, a vertical hole 40 is formed on the terminal 4 , and a pair of transverse holes 41 are formed on the vertical hole 40 .

[0027] In this embodiment, when processing the connecting cover, the existing outer shape of the connecting cover is formed by injection molding, and the end seat 3 is formed by injection molding.

[0028] Then, the end seat 3 is inserted into the assembly groove 22, and the terminal 4 is sleeved on the end seat 3, and then glue is injected into the groove 20. When injecting glue, the glue will enter the gap between the assembly groove and the T-shaped plug 30, thereby fixing the end seat 3, and then fixing the terminal through the glue until the glue fills the groove 20.

[0029] Finally, according to the established requirements, the connection operation of the connecting screw is performed. When connecting, the connecting nut is first placed on the terminal seat 3 and in the terminal 4, and then the fixing operation of the connecting screw is performed.

[0030] In some embodiments, a lead-acid battery casing includes the aforementioned connecting large cover and a battery tank 1 disposed at the lower end of the connecting large cover.

[0031] This battery casing has strong applicability and low production cost.

[0032] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. A connecting cover, characterized in that: The cover body (2) comprises a cover body (2), a pair of grooves (20) are formed on the cover body (2), the grooves (20) are distributed at both ends of the cover body (2), a boss (21) is provided at the front end of the bottom of the groove (20), an assembly groove (22) is provided on the boss (21), an end seat (3) is inserted into the assembly groove (22), a terminal (4) is sleeved on the end seat (3), and the groove (20) is filled with glue so that the lower ends of the end seat (3) and the terminal (4) are fixed in the groove (20).

2. The connecting cover according to claim 1, characterized in that: The assembly groove (22) is in a T-shaped structure.

3. The connecting cover according to claim 1, characterized in that: One end of the assembly groove (22) is open.

4. The connecting cover according to claim 3, characterized in that: The inner end of one of the assembly grooves (22) is open, and the outer end of the other assembly groove (22) is open.

5. The connecting cover according to claim 1, characterized in that: A T-shaped plug-in block (30) is formed at the lower end of the end seat (3), and the T-shaped plug-in block (30) is inserted into the assembly groove (22).

6. The connecting cover according to claim 5, characterized in that: A middle block (31) is formed at the upper end of the T-shaped plug block (30).

7. The connecting cover according to claim 6, characterized in that: A seat body (32) is formed at the upper end of the middle block (31), and a circular groove (35) is formed on the seat body (32).

8. The connecting cover according to claim 1, characterized in that: A pair of convex portions (33) are provided at one end of the upper end surface of the seat body (32), and a convex strip (34) is formed at the other end of the upper end surface of the seat body (32).

9. The connecting cover according to claim 1, characterized in that: The terminal (4) is provided with a vertical hole (40), and the vertical hole (40) is provided with a pair of transverse holes (41).

10. A lead-acid battery casing, characterized in that: It comprises a connecting cover as claimed in any one of claims 1 to 9, and an electric trough (1) arranged at the lower end of the connecting cover.

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