Light and thin injection molding battery cover plate assembly

Abstract

The utility model discloses a light and thin injection molding battery cover plate assembly, and relates to the technical field of battery cover plates. The light and thin injection molding battery cover plate assembly comprises a cover plate body, a reinforcing mechanism, a pole and a sealing colloid, a first assembly hole, a second assembly hole and a liquid injection hole are formed in the cover plate body, a first clamping groove and a first sealing groove are formed in the first assembly hole, and a positioning block is fixedly connected to the inner surface of the cover plate body; the outer surface of the pole is fixedly connected with a clamping block, the reinforcing mechanism comprises a reinforcing frame, a first base and a second base, the upper surface of the reinforcing frame is provided with a positioning hole, the outer surface of the first base and the outer surface of the second base are fixedly connected with a connecting longitudinal rod and a connecting transverse rod, and the safety of the battery can be improved through a sealing colloid; and the cover plate body is not easy to damage through the reinforcing mechanism, so that the service life of the battery cover plate is prolonged, and the reliability of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cover plates, in particular to a light and thin injection-molded battery cover plate component. Background Art

[0002] With the development of science and technology, the application of lithium batteries has penetrated into all aspects of our lives. Lithium batteries are batteries that use lithium metal or lithium alloy as negative electrode materials and non-aqueous electrolyte solutions. They have the advantages of light weight, high energy density, and long cycle life. They are the main direction of current battery technology development. The structural parts of lithium batteries include battery cell covers and shells. The lithium battery cover is an important part of the battery package. Its main function is to protect the battery cell, prevent the leakage of chemicals inside the battery, and avoid the impact of the external environment on the battery. In the prior art, the battery cover and the battery pole are usually connected by welding, but since 100% effective welding cannot be achieved, there is a risk of fracture between the battery cover and the battery pole. The battery cover is easily damaged, which may cause the pole and the battery cover to loosen, affecting the long-term use of the battery. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a light and thin injection-molded battery cover assembly to solve the existing problems raised in the above background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a thin and light injection-molded battery cover assembly, including a cover body, a reinforcement mechanism, a pole and a sealing colloid, the cover body is provided with a first assembly hole, a second assembly hole and a liquid injection hole, the first assembly hole is provided with a first card slot and a first sealing groove, the inner surface of the cover body is fixedly connected with a positioning block, the outer surface of the pole is fixedly connected with a card block, the reinforcement mechanism includes a reinforcement frame, a first base and a second base, the upper surface of the reinforcement frame is provided with a positioning hole, the outer surfaces of the first base and the second base are fixedly connected with a connecting longitudinal rod and a connecting cross rod, the inner surface of the first base is provided with a second sealing groove and a second card slot, the sealing colloid includes a sealing sleeve, the top of the sealing sleeve is fixedly connected with a sealing strip, and the outer surface of the sealing sleeve is fixedly connected with a sealing protrusion.

[0005] Preferably, the pole is arranged in the inner cavity of the first assembly hole, the second assembly hole and the second base are provided with an explosion-proof valve assembly, and the clamping blocks are symmetrically arranged on both sides of the pole.

[0006] Preferably, the outer surface of the reinforced frame is fixedly connected to the inner surface of the cover body, and the outer surface of the positioning block is extruded and fitted with the inner surface of the positioning hole.

[0007] Preferably, the first base is connected to the second base via a connecting cross bar, the first base is connected to the reinforced frame via a connecting cross bar and a connecting longitudinal bar, and the second base is connected to the reinforced frame via a connecting longitudinal bar.

[0008] Preferably, the sealing sleeve, the sealing protrusion and the sealing strip are symmetrically arranged on both sides of the pole, and a third groove is arranged at the interval of the sealing sleeve.

[0009] Preferably, the sealing sleeve is arranged at the interval between the pole, the first assembly hole and the first base, the sealing strip is arranged inside the first sealing groove, and the sealing protrusion is arranged inside the second sealing groove.

[0010] Preferably, the first base is arranged directly below the first assembly hole, and the second base is arranged directly below the second assembly hole.

[0011] Preferably, the second card slot is arranged directly below the first card slot, and the outer surface of the card block is extruded and adapted to the inner surfaces of the first card slot, the second card slot and the third card slot.

[0012] Beneficial Effects

[0013] The utility model provides a light and thin injection molded battery cover assembly. It has the following beneficial effects:

[0014] (1) The thin and light injection-molded battery cover assembly can be tightly connected between the pole and the cover body through the cooperation of the sealing colloid, the first sealing groove, the gap between the pole and the first base and the first assembly hole, and the sealing strip, sealing sleeve and sealing protrusion formed in the second sealing groove. Moreover, with the support of the sealing protrusion and the sealing strip, the pole and the cover body are not easy to loosen, thereby improving the safety of the battery and facilitating the long-term use of the battery.

[0015] (2) The thin and light injection-molded battery cover assembly has a reinforcing mechanism. With the support of the reinforcing frame, connecting longitudinal rods and connecting transverse rods, the rigidity of the cover body is increased, making the cover body less susceptible to damage, thereby extending the service life of the battery cover and improving the reliability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model as a whole;

[0018] Figure 3 This is a structural schematic diagram of the cover body of the utility model;

[0019] Figure 4This is a second perspective structural diagram of the cover body of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the strengthening mechanism of the utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the sealing colloid of the utility model.

[0022] In the figure: 1. cover body; 2. reinforcement mechanism; 21. reinforcement frame; 22. positioning hole; 23. first base; 24. second base; 25. connecting longitudinal rod; 26. connecting cross rod; 27. second sealing groove; 28. second clamping groove; 3. pole; 4. sealing colloid; 41. sealing sleeve; 42. sealing protrusion; 43. sealing strip; 44. third clamping groove; 5. first assembly hole; 6. second assembly hole; 7. injection hole; 8. first clamping groove; 9. first sealing groove; 10. clamping block; 11. explosion-proof valve assembly; 12. positioning block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figure 1-6 As shown, the utility model provides a light and thin injection molded battery cover assembly, including a cover body 1, a reinforcement mechanism 2, a pole 3 and a sealing colloid 4, the cover body 1 is provided with a first assembly hole 5, a second assembly hole 6 and a liquid injection hole 7, the first assembly hole 5 is provided with a first card slot 8 and a first sealing slot 9, the inner surface of the cover body 1 is fixedly connected with a positioning block 12, the outer surface of the pole 3 is fixedly connected with a card block 10, the reinforcement mechanism 2 includes a reinforcement frame 21, a first base 23 and a second base 24, the upper surface of the reinforcement frame 21 is provided with a positioning hole 22, the outer surfaces of the first base 23 and the second base 24 are fixedly connected with a connecting longitudinal rod 25 and a connecting cross rod 26, the inner surface of the first base 23 is provided with a second sealing groove 27 and a second card slot 28, the sealing colloid 4 includes a sealing sleeve 41, the top of the sealing sleeve 41 is fixedly connected with a sealing strip 43, and the outer surface of the sealing sleeve 41 is fixedly connected with a sealing protrusion 42.

[0026] Specifically, the pole 3 is arranged in the inner cavity of the first assembly hole 5 , the second assembly hole 6 and the second base 24 are provided with an explosion-proof valve assembly 11 , and the clamping blocks 10 are symmetrically arranged on both sides of the pole 3 .

[0027] Specifically, the outer surface of the reinforcement frame 21 is fixedly connected to the inner surface of the cover body 1 , and the outer surface of the positioning block 12 is pressed and fitted with the inner surface of the positioning hole 22 .

[0028] Specifically, the first base 23 is connected to the second base 24 via the connecting cross bar 26 , the first base 23 is connected to the reinforced frame 21 via the connecting cross bar 26 and the connecting longitudinal bar 25 , and the second base 24 is connected to the reinforced frame 21 via the connecting longitudinal bar 25 .

[0029] Specifically, the sealing sleeve 41 , the sealing protrusion 42 and the sealing strip 43 are symmetrically arranged on both sides of the pole 3 , and a third slot 44 is arranged at the interval of the sealing sleeve 41 .

[0030] Specifically, the sealing sleeve 41 is disposed at the interval between the pole 3 and the first assembly hole 5 and the first base 23 , the sealing strip 43 is disposed inside the first sealing groove 9 , and the sealing protrusion 42 is disposed inside the second sealing groove 27 .

[0031] Specifically, the first base 23 is disposed directly below the first assembly hole 5 , and the second base 24 is disposed directly below the second assembly hole 6 .

[0032] Specifically, the second card slot 28 is disposed directly below the first card slot 8 , and the outer surface of the card block 10 is pressed and fitted with the inner surfaces of the first card slot 8 , the second card slot 28 and the third card slot 44 .

[0033] The working principles and beneficial effects of the above embodiments.

[0034] When in use, align the positioning block 12 in the cover body 1 with the positioning hole 22 on the reinforcement frame 21, install the reinforcement frame 21 into the inside of the cover body 1, and then use the welding process to install the two together. With the support of the reinforcement frame 21, the connecting longitudinal rod 25 and the connecting cross rod 26, the rigidity of the cover body 1 is increased, making the cover body 1 less susceptible to damage. Align the clamping block 10 on the pole 3 with the second clamping groove 28 in the first base 23 and the first clamping groove 8 in the first assembly hole 5, and assemble the pole 3 from bottom to top. The sealing colloid 4 is then poured into the first sealing groove 9, the gap between the pole 3 and the first base 23 and the first assembly hole 5, and the second sealing groove 27 by using a glue pouring process to form a sealing strip 43, a sealing sleeve 41 and a sealing protrusion 42. The sealing strip 43 and the sealing protrusion 42 can prevent the pole 3 from loosening in the first assembly hole 5. The sealing sleeve 41 can improve the sealing performance of the cover body 1 while increasing the connection effect between the pole 3 and the first assembly hole 5.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thin and light injection molded battery cover assembly, comprising a cover body, a reinforcing mechanism, a pole and a sealing colloid, characterized in that: The cover body is provided with a first assembly hole, a second assembly hole and a liquid injection hole inside, the first assembly hole is provided with a first clamping groove and a first sealing groove inside, the inner surface of the cover body is fixedly connected with a positioning block, the outer surface of the pole is fixedly connected with a clamping block, the reinforcement mechanism comprises a reinforcement frame, a first base and a second base, the upper surface of the reinforcement frame is provided with a positioning hole, the outer surfaces of the first base and the second base are fixedly connected with a connecting longitudinal rod and a connecting cross rod, the inner surface of the first base is provided with a second sealing groove and a second clamping groove, the sealing colloid comprises a sealing sleeve, the top of the sealing sleeve is fixedly connected with a sealing strip, and the outer surface of the sealing sleeve is fixedly connected with a sealing protrusion.

2. A thin and light injection molded battery cover assembly according to claim 1, characterized in that: The pole is arranged in the inner cavity of the first assembly hole, the second assembly hole and the second base are provided with an explosion-proof valve assembly, and the clamping blocks are symmetrically arranged on both sides of the pole.

3. A thin and light injection molded battery cover assembly according to claim 1, characterized in that: The outer surface of the reinforcement frame is fixedly connected to the inner surface of the cover body, and the outer surface of the positioning block is extruded and adapted to the inner surface of the positioning hole.

4. A thin and light injection molded battery cover assembly according to claim 1, characterized in that: The first base is connected to the second base through a connecting crossbar, the first base is connected to the reinforced frame through a connecting crossbar and a connecting longitudinal bar, and the second base is connected to the reinforced frame through a connecting longitudinal bar.

5. The thin and light injection-molded battery cover assembly according to claim 1, characterized in that: The sealing sleeve, the sealing protrusion and the sealing strip are symmetrically arranged on both sides of the pole, and a third clamping groove is arranged at the interval of the sealing sleeve.

6. A thin and light injection molded battery cover assembly according to claim 1, characterized in that: The sealing sleeve is arranged at the interval between the pole, the first assembly hole and the first base, the sealing strip is arranged inside the first sealing groove, and the sealing protrusion is arranged inside the second sealing groove.

7. A thin and light injection molded battery cover assembly according to claim 1, characterized in that: The first base is arranged directly below the first assembly hole, and the second base is arranged directly below the second assembly hole.

8. The thin and light injection-molded battery cover assembly according to claim 1, characterized in that: The second card slot is arranged directly below the first card slot, and the outer surface of the card block is pressed and adapted to the inner surfaces of the first card slot, the second card slot and the third card slot.

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