CN214898804U

CN214898804U - Battery top cap

Info

Publication number: CN214898804U
Application number: CN202121465434.0U
Authority: CN
Inventors: 王君
Original assignee: Ningbo Wanheng Battery Accessories Co ltd
Current assignee: Ningbo Wanheng Battery Accessories Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-11-26
Anticipated expiration: 2031-06-29

Abstract

The application discloses a battery top cover, which comprises a cover body and a cover plate, wherein the upper end of the cover body is provided with a positive terminal, a negative terminal and a groove; a plurality of liquid filling ports penetrate through the inner bottom surface of the groove downwards, and a first conical surface is formed between the inner side wall of each liquid filling port and the inner bottom surface of the groove; the cover plate is detachably arranged at the upper end of the groove, a sealing plug is arranged on the cover plate corresponding to the liquid feeding port and protrudes downwards, a second conical surface is formed between the lower end surface and the outer side surface of the sealing plug, and sealing is formed between the second conical surface and the first conical surface. Only need pour liquid into the recess during the liquid feeding in, add liquid and can enter into the inside of battery body through each filling opening respectively, assemble the apron to the recess upper end after the liquid feeding, each filling opening can be stopped up respectively to a plurality of sealing plugs, easy operation, convenience, efficient, the leakproofness is good, need not with the help of the funnel.

Description

Battery top cap

Technical Field

The application relates to the technical field of storage batteries, in particular to a battery top cover.

Background

A battery is a device that converts chemical energy directly into electrical energy, and is a battery designed to be rechargeable, usually a lead-acid battery, by a reversible chemical reaction. The working principle of the device is that when charging, external electric energy is utilized to regenerate internal active substances, the electric energy is stored into chemical energy, and when discharging is needed, the chemical energy is converted into electric energy again to be output.

The existing storage battery generally comprises a battery body and a battery top cover which is sealed and combined on the battery body, wherein the battery top cover generally comprises a cover body, a sealing cap and a cover plate, a long-strip-shaped groove is formed in the cover body, and a liquid filling opening leading to an inner cavity of the battery body is formed in the groove; the sealing cap is arranged on the liquid filling opening, and the cover plate cover is arranged on the groove.

However, the existing battery top cover mainly has the following defects: because the quantity of filling opening is more, and the bore of filling opening is little, and the upper end of filling opening is higher than the interior bottom surface of recess, consequently, need carry out the liquid feeding to each filling opening respectively with the help of special funnel during the liquid feeding, need cover respectively with a plurality of sealed caps after the liquid feeding and close the filling opening on, the operation is extremely loaded down with trivial details, and is inefficient.

Therefore, how to improve the existing battery top cover to overcome the above-mentioned deficiencies is a problem to be solved in the art.

SUMMERY OF THE UTILITY MODEL

An aim at of this application provides a simple structure, and the overall arrangement is ingenious, and liquid feeding easy operation, convenience, and the battery top cap that operating efficiency is high.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: a battery top cover comprises a cover body and a cover plate, wherein a positive terminal, a negative terminal and a groove are arranged at the upper end of the cover body; a plurality of liquid filling ports penetrate through the inner bottom surface of the groove downwards, and a first conical surface is formed between the inner side wall of each liquid filling port and the inner bottom surface of the groove; the cover plate is detachably arranged at the upper end of the groove, a sealing plug is arranged on the cover plate corresponding to the liquid feeding port in a downward protruding mode, a second conical surface is formed between the lower end face and the outer side face of the sealing plug, and sealing is formed between the second conical surface and the first conical surface.

Preferably, a third conical surface is formed between the inner side surface and the inner bottom surface of the groove. The advantages are that: under the action of the third conical surface, the liquid in the groove can be guided into the liquid filling port, so that the liquid is prevented from remaining in the groove.

Preferably, a sealing ring is embedded on the second conical surface. The advantages are that: under the action of the sealing ring, the sealing performance between the second conical surface and the first conical surface is further improved.

Preferably, the left end and the right end of the cover plate extend outwards horizontally to form mounting parts, the lower end faces of the mounting parts are provided with positioning holes upwards, the upper end faces of the mounting parts are provided with mounting holes in a downward penetrating mode, and the hole diameters of the mounting holes are smaller than those of the positioning holes; the cover body is provided with positioning grooves corresponding to the mounting parts, the positioning grooves are used for accommodating the mounting parts, the inner bottom surfaces of the positioning grooves are upwards protruded with connecting columns, the connecting columns are connected in the positioning holes in an up-and-down sliding mode, and the upper ends of the positioning grooves are provided with threaded holes downwards; the battery top cover further comprises a screw, and the threaded end of the screw penetrates through the mounting hole and then is in threaded connection with the threaded hole. The advantages are that: the positioning precision between each sealing plug and each filling opening is improved through the positioning fit between the mounting part and the positioning groove and the sliding fit between the connecting column and the positioning hole; meanwhile, the cover plate can be assembled and fixed by locking the screws.

Preferably, when the first conical surface and the second conical surface form sealing, intervals are reserved between the lower end of the mounting portion and the inner bottom surface of the positioning groove and between the upper end of the connecting column and the inner top surface of the positioning hole. The advantages are that: under the effect of the interval, in the process of screwing the screw, the second conical surface gradually presses the first conical surface, so that the sealing performance between the second conical surface and the first conical surface is improved. Without the function of the gap, when the screw is tightened, a gap is easily generated between the second tapered surface and the first tapered surface due to machining errors or abrasion, and thus the sealing property between the second tapered surface and the first tapered surface is reduced.

Preferably, the mounting part is of a semicircular structure, and the outer annular surface of the mounting part and the side surface of the cover plate are in fillet transition. The advantages are that: simple structure and beautiful appearance.

Compared with the prior art, the beneficial effect of this application lies in:

(1) because it is a plurality of the filling opening by the interior bottom surface downward penetration of recess forms, each promptly the upper end of filling opening all with the interior bottom surface parallel and level of recess, consequently, only need pour liquid into during the liquid feeding in the recess, added liquid can pass through respectively the filling opening enters into battery body's inside, easy operation, convenience, and the liquid feeding is efficient, and need not with the help of the funnel.

(2) After liquid is added, the cover plate is assembled at the upper end of the groove, the sealing plugs integrally arranged on the cover plate can respectively plug the liquid adding openings, the operation is simple and convenient, the assembly efficiency is high, the second conical surface on the sealing plug and the first conical surface form sealing, and the sealing performance between the sealing plug and the liquid adding openings can be enhanced.

Drawings

Fig. 1 is a perspective view of a battery top cap provided by the present application.

Fig. 2 is an exploded view of the top cap of the battery of fig. 1 provided herein.

Fig. 3 is a partial enlarged view of fig. 2 at I provided herein.

Fig. 4 is another perspective view of the cover plate of fig. 2 provided herein.

Fig. 5 is a partial enlarged view of fig. 4 at II provided herein.

Fig. 6 is a top view of the battery top cap of fig. 1 as provided herein.

FIG. 7 is a cross-sectional view taken along A-A of FIG. 6 as provided herein.

Fig. 8 is a partial enlarged view at III in fig. 7 provided herein.

FIG. 9 is a cross-sectional view taken along B-B of FIG. 6 as provided herein.

Fig. 10 is an enlarged view of a portion of fig. 9 at IV as provided herein.

In the figure: 1. a cover body; 11. a positive terminal; 12. a negative terminal; 13. a groove; 131. a liquid filling port; 132. a first conical surface; 133. a third conical surface; 14. positioning a groove; 141. connecting columns; 142. a threaded hole; 2. a cover plate; 21. a sealing plug; 211. a second tapered surface; 22. an installation part; 221. positioning holes; 222. mounting holes; 3. a seal ring; 4. and (4) screws.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1 to 10, an embodiment of the present application provides a battery top cap, including a cap body 1 and a cover plate 2, wherein a positive terminal 11, a negative terminal 12 and a groove 13 are disposed at an upper end of the cap body 1; a plurality of liquid filling ports 131 are arranged on the inner bottom surface of the groove 13 in a downward penetrating manner, and a first conical surface 132 is formed between the inner side wall of each liquid filling port 131 and the inner bottom surface of the groove 13; the cover plate 2 is detachably disposed at the upper end of the groove 13, a sealing plug 21 is integrally and downwardly protruded at a position corresponding to the filling opening 131 on the cover plate 2, a second tapered surface 211 is formed between the lower end surface and the outer side surface of the sealing plug 21, and a seal is formed between the second tapered surface 211 and the first tapered surface 132.

Wherein, because a plurality of filling openings 131 are run through downwards by the interior bottom surface of recess 13 and are formed, the upper end of each filling opening 131 all is parallel and level with the interior bottom surface of recess 13 promptly, consequently, only need pour liquid into recess 13 during the liquid feeding in, added liquid can enter into the inside of battery body through each filling opening 131 respectively, easy operation, convenience, and the liquid feeding is efficient, and need not with the help of the funnel. After liquid adding, the cover plate 2 is assembled to the upper end of the groove 13, the liquid adding openings 131 can be respectively blocked by the sealing plugs 21 integrally arranged on the cover plate 2, the operation is simple and convenient, the assembly efficiency is high, and the sealing is formed between the second conical surface 211 and the first conical surface 132 on the sealing plug 21, so that the sealing performance between the sealing plug 21 and the liquid adding openings 131 is enhanced.

Referring to fig. 3, in some embodiments of the present application, a third taper 133 is formed between the inner side surface and the inner bottom surface of the groove 13. The liquid in the groove 13 can be guided into the filling opening 131 by the third tapered surface 133, so that the liquid is prevented from remaining in the groove 13.

Referring to fig. 5, in some embodiments of the present application, a seal ring 3 is engaged on the second tapered surface 211. The sealing performance between the second tapered surface 211 and the first tapered surface 132 is further improved by the seal ring 3.

Referring to fig. 3, 5 and 8, in some embodiments of the present application, the mounting portion 22 extends horizontally and outwardly from both left and right ends of the cover plate 2, the lower end surface of the mounting portion 22 faces upwards to form a positioning hole 221, the upper end surface of the mounting portion 22 penetrates downwards to form a mounting hole 222, and the diameter of the mounting hole 222 is smaller than that of the positioning hole 221; the positions of the cover body 1 corresponding to the mounting parts 22 are all provided with positioning grooves 14 for accommodating the mounting parts 22, the inner bottom surfaces of the positioning grooves 14 are upwards protruded with connecting columns 141, the connecting columns 141 are connected in the positioning holes 221 in an up-and-down sliding manner, and the upper ends of the positioning grooves 14 are downwards provided with threaded holes 142; the battery top cover also comprises a screw 4, and the threaded end of the screw 4 penetrates through the mounting hole 222 and then is screwed into the threaded hole 142. As shown in fig. 8, the positioning accuracy between each sealing plug 21 and each filling opening 131 is improved by the positioning fit between the mounting portion 22 and the positioning groove 14 and the sliding fit between the connecting column 141 and the positioning hole 221; and simultaneously, the cover plate 2 can be assembled and fixed by locking the screws 4.

Referring to fig. 8, in some embodiments of the present application, when the seal is formed between the first tapered surface 132 and the second tapered surface 211, a space is left between the lower end of the mounting portion 22 and the inner bottom surface of the positioning groove 14 and between the upper end of the connecting post 141 and the inner top surface of the positioning hole 221. Under the action of the gap, the second tapered surface 211 gradually presses the first tapered surface 132 during the process of tightening the screw 4, so that the sealing performance between the second tapered surface 211 and the first tapered surface 132 is improved. Otherwise, if there is no gap, after the screw 4 is tightened, a gap is easily formed between the second tapered surface 211 and the first tapered surface 132 due to machining errors or abrasion, and the sealing property between the second tapered surface 211 and the first tapered surface 132 is reduced.

Referring to fig. 5, in some embodiments of the present application, the mounting portion 22 has a semicircular configuration, and the outer annular surface of the mounting portion 22 is rounded to the side surface of the cover plate 2. Simple structure and beautiful appearance.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. A battery top cover comprises a cover body and a cover plate, wherein a positive terminal, a negative terminal and a groove are arranged at the upper end of the cover body; the liquid filling device is characterized in that a plurality of liquid filling ports penetrate through the inner bottom surface of the groove downwards, and a first conical surface is formed between the inner side wall of each liquid filling port and the inner bottom surface of the groove; the cover plate is detachably arranged at the upper end of the groove, a sealing plug is arranged on the cover plate corresponding to the liquid feeding port in a downward protruding mode, a second conical surface is formed between the lower end face and the outer side face of the sealing plug, and sealing is formed between the second conical surface and the first conical surface.

2. The battery top cap of claim 1, wherein a third tapered surface is formed between the inner side surface and the inner bottom surface of the groove.

3. A battery top cap in accordance with claim 1, wherein said second tapered surface has a gasket engaged thereon.

4. The battery top cover according to claim 1, wherein the left and right ends of the cover plate are horizontally extended outwards to form mounting portions, the lower end surfaces of the mounting portions are provided with positioning holes upwards, the upper end surfaces of the mounting portions are provided with mounting holes downwards in a penetrating manner, and the diameter of each mounting hole is smaller than that of each positioning hole; the cover body is provided with positioning grooves corresponding to the mounting parts, the positioning grooves are used for accommodating the mounting parts, the inner bottom surfaces of the positioning grooves are upwards protruded with connecting columns, the connecting columns are connected in the positioning holes in an up-and-down sliding mode, and the upper ends of the positioning grooves are provided with threaded holes downwards; the battery top cover further comprises a screw, and the threaded end of the screw penetrates through the mounting hole and then is in threaded connection with the threaded hole.

5. The battery top cap according to claim 4, wherein when a seal is formed between the first tapered surface and the second tapered surface, a space is left between the lower end of the mounting portion and the inner bottom surface of the positioning groove and between the upper end of the connecting post and the inner top surface of the positioning hole.

6. The battery top cap of claim 4, wherein the mounting portion has a semicircular configuration, and the outer circumferential surface of the mounting portion and the side surface of the cap plate have rounded transitions therebetween.