CN214898791U

CN214898791U - Utmost point post, battery top cap and power battery

Info

Publication number: CN214898791U
Application number: CN202120944249.3U
Authority: CN
Inventors: 励建炬; 张中涛
Original assignee: Shenzhen Kedali Industry Co ltd
Current assignee: Shenzhen Kedali Industry Co ltd; Shenzhen Kedali Ind Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-26
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a utmost point post, battery top cap and power battery, this utmost point post are including continuous first body and second body, and in the utmost point post perforation of top cap piece can be worn to establish by first body, the second body can only be supported on the diapire of top cap piece. The periphery wall on the first body is provided with a plurality of matching grooves distributed at intervals, and a guide surface is arranged between every two adjacent matching grooves. The matching grooves on the outer peripheral wall of the first body of the pole are distributed at intervals along the circumferential direction of the pole, so that the phenomenon that the sealing ring cannot be abutted against the second body when the sealing ring is installed is avoided, and the sealing property of the pole is ensured; the guide surface that adds can make the sealing washer embolia utmost point post comparatively smoothly to the cup joint operation of sealing washer has been simplified, utmost point post packaging efficiency has been promoted.

Description

Utmost point post, battery top cap and power battery

Technical Field

The utility model relates to a battery technology field especially relates to a utmost point post, battery top cap and power battery.

Background

For a battery cover plate of an injection molding structure, a matching groove is formed in the circumferential surface of a pole matched with the cover plate, a sealing ring needs to be sleeved into the pole in the installation process, but the sealing ring is easy to clamp in the groove when being sleeved into the pole and cannot fall onto the bottom plate surface of the pole, and therefore the phenomenon of air leakage at the pole is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first aim at provides a utmost point post, and the simple structure of this utmost point post cup joints the sealing member comparatively easily, has promoted utmost point post packaging efficiency.

A second object of the utility model is to provide a battery top cap, this battery top cap is better at the sealing performance of utmost point post department, and the packaging efficiency is higher.

A third object of the present invention is to provide a power battery, which has better sealing performance and higher assembling efficiency.

For realizing the above technical effect, the technical scheme of the utility model as follows:

the utility model discloses a pole, which comprises a first body and a second body which are connected, wherein the first body can be arranged in the pole through hole of a top cover plate in a penetrating way, and the second body can be supported on the bottom wall of the top cover plate; wherein: the outer peripheral wall on the first body is provided with a plurality of matching grooves distributed at intervals, and a guide surface is arranged between every two adjacent matching grooves.

In some embodiments, the guide surface is an arcuate surface.

In some embodiments, the mating grooves are strip grooves.

In some embodiments, the first body has a length of L1, the mating slot has a length of L2, and L1 and L2 satisfy the relationship: L2/L1 is more than or equal to 0.7 and less than or equal to 0.8.

In some embodiments, the second body is square in cross-section, and the second body has rounded corners at three corners, and a chamfer at one corner.

In some embodiments, the mating grooves have a depth of 1mm to 2 mm.

In some embodiments, a protrusion is provided on a side wall of the first body away from the second body.

In some embodiments, the first body has a square cross section, the four side walls of the first body are provided with the fitting grooves, and the guide surface is formed as a rounded corner provided at the first body.

The utility model also discloses a battery top cap, including top cap piece and the foreland utmost point post.

The utility model also discloses a power battery, including the aforesaid battery top cap.

The utility model discloses a beneficial effect of utmost point post: the matching grooves on the outer peripheral wall of the first body are distributed at intervals along the circumferential direction of the first body, so that the phenomenon that the sealing ring cannot be abutted against the second body when the sealing ring is installed can be avoided, and the sealing property of the pole is ensured; the guide surface that adds can make the sealing washer embolia utmost point post comparatively smoothly to the cup joint operation of sealing washer has been simplified, utmost point post packaging efficiency has been promoted.

The utility model discloses a beneficial effect of battery top cap: owing to have foretell utmost point post, avoided the cooperation inslot of sealing washer card on utmost point post, promoted the leakproofness of battery top cap in utmost point post department to the packaging efficiency of battery top cap has been promoted.

The utility model discloses a power battery's beneficial effect: due to the battery top cover, the power battery has good sealing performance and high assembly efficiency.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a pole according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a battery top cover according to an embodiment of the present invention.

Reference numerals:

1. a first body; 11. a mating groove; 12. a guide surface; 13. a protrusion;

2. a second body; 3. a seal ring; 4. a top cover sheet; 5. and (5) applying a plastic part.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific structure of the pole according to the embodiment of the present invention is described below with reference to fig. 1.

The utility model discloses a pole, as shown in figure 1, the pole comprises a first body 1 and a second body 2 which are connected, the first body 1 can be arranged in the pole through hole of a top cover plate 4 in a penetrating way, and the second body 2 can be stopped against the bottom wall of the top cover plate 4; wherein: a plurality of matching grooves 11 distributed at intervals are arranged on the peripheral wall of the first body 1, and a guide surface 12 is arranged between every two adjacent matching grooves 11.

It can be understood that, when the sealing ring 3 is installed, since the matching grooves 11 on the outer peripheral wall of the first body 1 are distributed at intervals along the circumferential direction of the first body, the phenomenon that the sealing ring 3 cannot be stopped against the second body 2 when the sealing ring 3 is installed can be avoided, and the sealing performance of the pole is ensured. Meanwhile, the additionally arranged guide surface 12 can enable the sealing ring 3 to be sleeved into the pole smoothly, so that the sleeving operation of the sealing ring 3 is simplified, and the pole assembling efficiency is improved.

It should be added that the number of the first body 1 and the second body 2 may be one or more, and the number of the first body 1 and the second body 2 may be selected according to actual needs.

In some embodiments, as shown in FIG. 1, the guide surface 12 is an arcuate surface. It can be understood that the guide surface 12 is an arc surface, so that the sealing ring 3 can be smoothly sleeved into the pole, the sleeving operation of the sealing ring 3 is simplified, and the assembly efficiency of the pole is improved. Of course, it should be additionally noted that in other embodiments of the present invention, the guiding surface 12 may have other shapes, and is not limited to the arc-shaped surface of the present application.

In some embodiments, as shown in FIG. 1, the mating grooves 11 are strip-shaped grooves. It can be understood that cooperation groove 11 needs to cooperate with last plastic part 5 that the formation of moulding plastics, and cooperation groove 11 can increase utmost point post and the area of contact of last plastic part 5 for the bar groove to ensure to go up the sealing effect of plastic part 5 to utmost point post. Of course, in other embodiments of the present invention, the mating groove 11 may have other shapes.

In some embodiments, the length of the first body 1 is L1, the length of the mating groove 11 is L2, and L1 and L2 satisfy the relationship: L2/L1 is more than or equal to 0.7 and less than or equal to 0.8. It can be understood that too long a length of the fitting groove 11 will affect smooth sleeve connection of the sealing ring 3, and too short a length of the fitting groove 11 will affect a contact area between the plastic part 5 and the pole. In this embodiment, the length of cooperation groove 11 is 0.7-0.8 with the length ratio of first body 1, can enough ensure that sealing washer 3 cup joints smoothly on utmost point post, can guarantee again to go up the area of contact of plastic part 5 and utmost point post to guarantee to go up the connection stability and the connection leakproofness of plastic part 5 and utmost point post.

Of course, in other embodiments of the present invention, the length of the fitting groove 11 can be selected according to actual needs.

In some embodiments, as shown in fig. 1, the second body 2 has a square cross-section, and the second body 2 has rounded corners at three corners, and a chamfer at one corner. It can be understood that the existence of the fillet can avoid utmost point post fish tail operating personnel to the security of utmost point post equipment has been promoted. The existence of the chamfer has the fool-proof function, and the phenomenon that the pole is installed in the wrong direction is avoided.

In some embodiments, the mating grooves 11 have a depth of 1mm to 2 mm. It can be understood that, the shallow area of contact who goes up plastic part 5 and utmost point post can be influenced to the degree of depth of cooperation groove 11 to the connection stability and the connection leakproofness of plastic part 5 and utmost point post are gone up in the reduction, the intensity of utmost point post can be influenced again to the deep degree of depth of cooperation groove 11, in this embodiment, the degree of depth of cooperation groove 11 sets up to 1mm-2mm, can ensure the connection stability and the connection leakproofness of plastic part 5 and utmost point post, can ensure the intensity of utmost point post again, extension utmost point post life. Of course, in other embodiments of the present invention, the depth of the fitting groove 11 can also be selected according to actual needs, and is not limited to 1mm-2mm in this embodiment.

In some embodiments, as shown in fig. 1, the side wall of the first body 1 away from the second body 2 is provided with a protrusion 13. Therefore, the connection of the pole and an external lead is facilitated. The shape and size of the protrusion 13 can be selected according to actual needs.

In some embodiments, the first body 1 has a square cross section, the four side walls of the body are provided with matching grooves 11, and the guide surfaces 12 are formed as rounded corners provided at the corners of the first body 1. Of course, in other embodiments of the present invention, the cross section of the first body 1 may also be circular, that is, the utility model discloses a pole is not square pole but circular pole.

Example (b):

a pole of an embodiment of the present invention is described below with reference to fig. 1.

As shown in fig. 1, the pole comprises a first body 1 and a second body 2 which are connected, the first body 1 can be arranged in the pole through hole of the top cover plate 4 in a penetrating way, and the second body 2 can be stopped against the bottom wall of the top cover plate 4. The cross section of the first body 1 is square, the four side walls of the first body 1 are provided with matching grooves 11, and the round corners of the first body 1 form guide surfaces 12 for guiding the sealing ring 3. The side wall of the first body 1 far away from the second body 2 is provided with a protruding part 13. The cross section of the second body 2 is square, the three corners of the second body 2 are provided with round corners, and one corner is provided with a chamfer.

The utility model also discloses a battery top cap, as shown in figure 2, this battery top cap includes top cap piece 4, in the foreland utmost point post, sealing washer 3 and go up plastic part 5.

The utility model discloses a battery top cap owing to have foretell utmost point post, avoided 3 cards of sealing washer in the cooperation groove 11 on utmost point post, promoted the leakproofness of battery top cap in utmost point post department to the packaging efficiency of battery top cap has been promoted.

The utility model also discloses a power battery, including the battery top cap in the foregoing.

The utility model discloses a power battery, owing to have the foregoing battery top cap, this power battery's sealing performance is better, and the packaging efficiency is higher.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A pole is characterized by comprising a first body (1) and a second body (2) which are connected, wherein the first body (1) can be arranged in a pole through hole of a top cover plate (4) in a penetrating way, and the second body (2) can be abutted against the bottom wall of the top cover plate (4); wherein: the outer peripheral wall of the first body (1) is provided with a plurality of matching grooves (11) distributed at intervals, and a guide surface (12) is arranged between every two adjacent matching grooves (11).

2. A pole according to claim 1, characterised in that the guide surface (12) is an arc-shaped surface.

3. A pole according to claim 1, characterised in that the fitting groove (11) is a strip-shaped groove.

4. A pole according to claim 1, characterized in that the first body (1) has a length L1, the mating groove (11) has a length L2, L1 and L2 satisfy the relation: L2/L1 is more than or equal to 0.7 and less than or equal to 0.8.

5. A pole according to claim 1, characterised in that the second body (2) is square in cross-section, with rounded corners at three corners and a chamfer at one corner of the second body (2).

6. A pole according to claim 1, characterized in that the depth of the fitting groove (11) is 1-2 mm.

7. A pole according to claim 1, characterised in that a projection (13) is provided on the side wall of the first body (1) remote from the second body (2).

8. A pole according to claim 1, characterised in that the cross-section of the first body (1) is square, that the fitting grooves (11) are provided on all four side walls of the first body (1), and that the guide surfaces (12) are formed as rounded corners provided at the corners of the first body (1).

9. A battery top cap, characterized in that it comprises a top cover sheet (4) and a pole according to any one of claims 1 to 8.

10. A power cell comprising the cell cap of claim 9.