Assembly structure of pole and sealing ring and battery cover plate

Abstract

The utility model provides an assembling structure of a pole column and a sealing ring, a battery cover plate and a main body part, the main body part comprises a pole column base and a second connecting part arranged above the pole column base, and the pole column base and the second connecting part are connected through an annular concave table; and the sealing ring is annular and is arranged at the concave platform between the second connecting part and the pole base, and the sealing ring protrudes towards the direction of the concave platform to form a convex part. According to the assembling structure of the pole and the sealing ring and the battery cover plate provided by the utility model, when the sealing ring is assembled on the pole, the convex part of the sealing ring is propped against the concave part below the second connecting part, and the sealing ring is effectively fixed on the pole under the elastic retraction action of the sealing ring and the blocking action of the second connecting part and the pole base, so that the sealing ring is prevented from being damaged. And the edge warping phenomenon of the sealing ring in the pole grabbing process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pole, concretely relates to a pole and seal ring's assembly structure and battery cover plate. BACKGROUND

[0002] The pole can be made of copper, aluminum or other materials with good conductivity, and is usually arranged at the electrode end of a battery assembly to connect the positive and negative electrodes of the battery to an external circuit to ensure smooth transmission of current.

[0003] The battery assembly includes a battery cover plate, a pole and a seal ring. During assembly of the pole, the seal ring is usually sleeved on the pole, and then the pole and the seal ring are assembled on the battery cover plate for injection molding. However, during the process of grabbing and assembling the pole, the seal ring is easily squeezed and touched, which may cause the seal ring to be easily warped. Since the position of the seal ring cannot be determined after injection molding, a large number of defective products are produced. SUMMARY

[0004] The utility model aims at solving the above problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model can be realized through the following technical scheme: a pole and seal ring assembly structure, comprising:

[0006] A main body portion includes a pole base and a second connecting portion arranged above the pole base. The pole base and the second connecting portion are connected by an annular recess.

[0007] A seal ring is annular and arranged in the recess between the second connecting portion and the pole base. The seal ring protrudes in the direction of the recess to form a protruding portion.

[0008] In the utility model embodiment, the recess as a whole forms a concave portion shape inwardly and is engaged with the protruding portion of the seal ring.

[0009] In the utility model embodiment, the cross-sectional shape of the protruding portion is circular arc, trapezoidal, triangular or elliptical.

[0010] In the utility model embodiment, a first connecting portion is arranged on the main body portion. An injection groove is arranged between the first connecting portion and the second connecting portion. The first connecting portion includes a support table and a tooth-shaped area. The diameter of the support table is consistent with that of the second connecting portion.

[0011] In the utility model embodiment, the tooth-shaped area is arranged in the injection groove.

[0012] The utility model discloses an embodiment, the tooth shape area includes trapezoidal convex part, trapezoidal convex part surrounds and is evenly arranged in glue injection groove, and form triangular groove between two trapezoidal convex parts.

[0013] An embodiment of the utility model, the main part is integrally formed.

[0014] An embodiment of the utility model, the main part is integrally formed.

[0015] An embodiment of the utility model, the main part is integrally formed.

[0016] A battery cover plate, including the polar post and sealing ring assembly structure of any one of the above.

[0017] Compared with the prior art, the advantages of the application are that when the sealing ring is assembled to the polar post, the convex part of the sealing ring abuts on the concave part under the second connecting part, and due to the elastic retraction of the sealing ring and the blocking of the second connecting part and the polar post base, the sealing ring is effectively fixed to the polar post, and the phenomenon of edge lifting of the sealing ring in the polar post grabbing process is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the connecting structure schematic diagram of polar post and sealing ring assembly;

[0019] Figure 2 It is the internal part structure schematic diagram after splitting of polar post and sealing ring;

[0020] Figure 3 It is the internal structure enlarged schematic diagram of single polar post partial section;

[0021] Figure 4 It is the first connecting part specific feature structure schematic diagram after cutting along glue injection groove;

[0022] Figure 5 It is the plane schematic diagram of polar post and sealing ring overall half section;

[0023] Figure 6 It is the half section plane schematic diagram after splitting of polar post and sealing ring;

[0024] Figure 7 It is the structure schematic diagram of sealing ring upper convex part.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1. Main body; 11. First connecting part; 111. Support platform; 112. Toothed area; 1121. Triangular groove; 1122. Trapezoidal protrusion; 12. Pole post base; 121. Marking corner; 13. Second connecting part; 131. Recessed platform; 14. Frustum; 15. Glue injection groove; 2. Sealing ring; 21. Protrusion; 211. Arc-shaped; 212. Trapezoidal shape; 213. Triangular shape; 214. Elliptical shape. Detailed Implementation

[0027] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0028] like Figures 1-7 As shown, an assembly structure for an electrode post and a sealing ring includes:

[0029] The main body 1 includes a pole base 12 and a second connecting part 13 disposed above the pole base 12. The pole base 12 and the second connecting part 13 are connected by an annular recess 131.

[0030] The sealing ring 2 is annular and is disposed at the recess 131 between the second connecting part 13 and the pole base 12, and the sealing ring 2 protrudes in the direction of the recess 131 to form a protrusion 21.

[0031] Specifically, the main body 1 is the main body of the pole post. During the assembly process of the pole post and the sealing ring 2, the sealing ring 2 will wrap around the second connecting part 13 so that the protrusion 21 and the concave platform 131 will engage under elastic retraction. At the same time, under the restriction of the second connecting part 13 and the pole post base 12, the shaking of the sealing ring 2 during the removal and placement process is reduced, thereby avoiding the phenomenon of the sealing ring 2 warping and improving the assembly effect of the pole post and the sealing ring 2.

[0032] Furthermore, when a finger or device touches the sealing ring 2, the sealing ring 2 is subjected to force and is squeezed into the second connecting part 13. When it is removed, the sealing ring 2 comes into contact with the finger, generating an upward force. If there is no second connecting part 13, the friction between the electrode and the sealing ring 2 is small, thus causing the phenomenon of lifting. If the injection molding process continues, it cannot be observed from the outside. Therefore, it is necessary to perform helium testing and resistance testing under high and low temperature environments or under different thrusts on the electrode. If the sealing ring 2 lifts, the test data and the qualified range will have a large difference, resulting in more defective products.

[0033] When the pole with the second connecting part 13, due to the existence of the second connecting part 13, the displacement of the sealing ring 2 is limited, and at the same time the sealing ring 2 is extruded into the recess 131 due to the pressure, further ensuring that the displacement does not occur, when the force is removed, the sealing ring 2 returns to the original position, thereby avoiding the phenomenon of lifting, thereby improving the connection and support effect of the sealing ring 2 and the pole, and reducing the generation of defective products.

[0034] As further provided in the embodiments of the utility model, the recess 131 is formed as a recess shape as a whole and is clamped with the convex part 21 of the sealing ring 2, the cross section of the convex part 21 of the sealing ring 2 is a plan view as shown in the drawing, and the recess 131 is designed to correspond to the convex part 21, for example, the convex part 21 is a circular arc, and the recess 131 is a circular arc groove. Figure 6

[0035] As further provided in the embodiments of the utility model, the cross section shape of the convex part 21 is a circular arc shape 211, a trapezoidal shape 212, a triangular shape 213 or an elliptical shape 214, the cross section shape of the convex part 21 is a closed geometric shape, and the closed geometric shape refers to a figure in a closed state in the cross section, and the conventional figure is a circular arc shape 211, a trapezoidal shape 212, a triangular shape 213 or an elliptical shape 214 (as shown in the drawing). Figure 7

[0036] As further provided in the embodiments of the utility model, the main body part 1 is provided with the first connecting part 11, the first connecting part 11 and the second connecting part 13 are provided with the glue injection groove 15, the first connecting part 11 comprises a support table 111 and a tooth-shaped area 112, the diameter of the support table 111 is consistent with that of the second connecting part 13, and the support table 111 and the second connecting part 13 are provided with a recessed glue injection groove 15, and the design of the glue injection groove 15 and the tooth-shaped area 112 improves the connection and sealing effect of the injection molding part and the pole, and also has a certain positioning effect.

[0037] As further provided in the embodiments of the utility model, the tooth-shaped area 112 is arranged in the glue injection groove 15, the glue injection groove 15 is circular after injection molding, and the tooth-shaped area 112 is distributed in a tooth-shaped ring shape on the circular shape after injection molding, thereby further improving the connection effect of the injection molding part and the pole.

[0038] ​​As the utility model further provides, the tooth-shaped area 112 includes trapezoidal protruding portions 1122, which are evenly arranged around the glue injection groove 15, and a triangular groove 1121 is formed between the two trapezoidal protruding portions 1122, the trapezoidal angle of the trapezoidal protruding portion 1122 can be 50°, and the corresponding angle of the triangular groove 1121 is 70°, when the pole is assembled on the battery cover plate for injection molding, the injection liquid will flow into the glue injection groove 15 through the extrusion of the mold, and fill into the triangular groove 1121, and after complete cooling, the injection molding part is located at the connection of the glue injection groove 15, which is annularly distributed triangularly, thereby improving the connection and support effect of the injection molding part and the pole.

[0039] As the utility model further provides, the main body part 1 is an integrally formed part, which avoids the process step of welding the pole, and reduces the risk of short circuit caused by welding slag.

[0040] As the utility model further provides, the main body part 1 is provided with a circular table 14, which improves the connection effect with the injection molding part, and further improves the connection and sealing performance of the pole and the battery cover plate.

[0041] As the utility model further provides, the pole base 12 is provided with a mark angle 121, which has a positioning effect, so as to install the pole to the position on the battery cover plate, and then perform the injection molding process, so that the installation direction of the positive and negative poles is consistent.

[0042] A battery cover plate is the shell part of a battery assembly, mainly used for protecting the internal parts of the battery assembly, and after the pole and the sealing ring 2 are assembled, they are installed on the battery cover plate, so that the pole base 12 is attached to the battery cover plate, and after the position is adjusted, injection molding is performed, so as to improve the connection and sealing performance of the pole and the battery cover plate, prevent the leakage of electrolyte, and avoid safety accidents.

[0043] The above technical scheme of the utility model provides a solution significantly different from the prior art, and the parts not involved in the technical scheme of the application are the same as or can be realized by the prior art, which will not be described here.

[0044] The technical scheme in the above embodiments has clearly and completely described the content of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

Claims

1. An assembly structure for an electrode post and a sealing ring, characterized in that, The application relates to a sealing ring and an assembly structure of a pole and the sealing ring. The main body part comprises a pole base and a second connecting part arranged above the pole base, and the pole base and the second connecting part are connected through an annular recess; The sealing ring is annular and arranged at the recess between the second connecting part and the pole base, and the sealing ring is protruded to form a convex part in the direction of the recess.

2. The pole and seal assembly of claim 1, wherein: The recess is wholly formed in a concave shape and is engaged with the convex part of the sealing ring.

3. The pole and seal assembly of claim 2, wherein: The cross section of the convex part is in the shape of a circular arc, a trapezoid, a triangle or an ellipse.

4. The pole and seal assembly of claim 1, wherein: A first connecting part is arranged on the main body part, an injection groove is arranged between the first connecting part and the second connecting part, the first connecting part comprises a supporting table and a tooth-shaped area, and the supporting table is consistent with the diameter of the second connecting part.

5. The pole and seal assembly of claim 4, wherein: The tooth-shaped area is arranged in the injection groove.

6. The pole and seal assembly of claim 5, wherein: The tooth-shaped area comprises trapezoidal convex parts which are evenly arranged in the injection groove, and a triangular groove is formed between two trapezoidal convex parts.

7. The pole and seal assembly of claim 1, wherein: The main body part is an integral forming part.

8. The pole and seal assembly of claim 1, wherein: A circular table is arranged on the main body part.

9. The pole and seal assembly of claim 1, wherein: An identification angle is arranged on the pole base.

10. A battery cover plate characterized by: The application relates to a sealing ring and an assembly structure of a pole and the sealing ring. The application relates to a sealing ring and an assembly structure of a pole and the sealing ring.

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