CN206163598U

CN206163598U - Positive electrode cap for external plug structure PVC battery

Info

Publication number: CN206163598U
Application number: CN201621276070.0U
Authority: CN
Inventors: 王东兴
Original assignee: Ningbo Fengyin Battery Co ltd
Current assignee: Ningbo Fengyin Battery Co ltd
Priority date: 2016-11-25
Filing date: 2016-11-25
Publication date: 2017-05-10
Anticipated expiration: 2026-11-25

Abstract

The utility model discloses an outer stopper structure PVC positive pole cap for battery, including the metal cap lid, be provided with the annular insulating block of taking the annular to press from both sides the groove on the metal cap lid, the annular insulating block passes through the annular presss from both sides the groove centre gripping and wraps up the edge part of metal cap lid, the annular insulating block with the one side of the caping homonymy of metal cap lid is provided with annular step, the width less than or equal to of annular step the top of annular insulating block with height between the top of metal cap lid. Through set up annular insulating block on the metal cap lid of battery commonly used, and this annular insulating block is through the periphery that the annular presss from both sides the groove centre gripping parcel metal cap lid for metal cap lid has possessed insulating properties its lower extreme outer edge portion when keeping the electric conductivity ability of middle part lid. The fastening strip of the outer plug structure PVC battery can be well sleeved on the annular step, and the step separates the fastening strip made of metal materials from the positive electrode cap to enable the battery not to be short-circuited.

Description

Positive electrode cap for external plug structure PVC battery

Technical Field

The utility model relates to the technical field of batteries, concretely relates to outer stopper structure positive pole cap for PVC battery.

Background

At present, the general zinc-manganese batteries can be classified into two types according to the materials of the trademarks used outside the batteries. One type of battery is a PVC battery, and the other type of battery is an iron-clad battery. The iron-clad battery is generally a battery with an external plug structure, wherein the sealing ring is arranged outside relative to the zinc cylinder. The design makes full use of the effective space of the battery; meanwhile, the explosion-proof effect of the battery can be achieved. However, the sealing ring of the PVC battery is generally placed in the zinc can, and the sealing ring of the battery not only occupies the effective space in the zinc can, but also is more complicated to manufacture in order to achieve the explosion-proof index.

In the related art, the design of the PVC battery with the outer plug structure is assumed, and the sealing ring is arranged externally but an iron shell structure is not used. The iron shell structure of the original iron shell battery is omitted, and other structures such as a fastening strip are used for connecting the positive electrode cap and the negative electrode bottom, so that the stability and the explosion-proof performance of the battery structure are guaranteed. However, in order to ensure the structural strength of the fastening strip, it is necessary to use a metal strip to prepare the fastening strip, and if the metal strip is used to directly connect the positive electrode cap and the negative electrode base, short circuit of the battery may occur, which is not allowed. Therefore, for the PVC battery with the external plug structure, a new positive electrode cap needs to be designed to avoid the above problems.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the technical scheme of the utility model is that, a fill in structure PVC positive pole cap for battery outward is provided, including the metal cap lid, be provided with the annular insulating block of taking the annular clamp groove on the metal cap lid, the annular insulating block passes through the annular clamp groove centre gripping is lived the edge part of metal cap lid, the annular insulating block with the one side of the caping homonymy of metal cap lid is provided with annular step.

Further, the width of the annular step is smaller than or equal to the height between the top end of the annular insulating block and the top end of the metal cap.

Furthermore, at least one annular convex rib is arranged on the annular step, and the annular convex rib and the annular step are coaxial.

Furthermore, an annular clamping groove is formed in the outer side wall of the annular insulating block, and the annular clamping groove are coaxial.

Further, the annular insulating block is a plastic part formed by injection molding.

Further, the edge part of the bottom end of the annular insulating block is provided with a fillet.

The utility model discloses technical scheme's beneficial effect does: through set up annular insulating block on the metal cap lid of battery commonly used, and this annular insulating block is through the periphery that the annular presss from both sides the groove centre gripping parcel metal cap lid for metal cap lid has possessed insulating properties its lower extreme outer edge portion when keeping the electric conductivity ability of middle part lid. And an annular step is arranged on the upper end face of the annular insulating block, so that the fastening strip of the PVC battery with the outer plug structure can be well sleeved on the step, and the step separates the fastening strip made of the metal material from the positive electrode cap to prevent the battery from short circuit.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a positive electrode cap for a PVC battery with an external plug structure;

fig. 2 is a schematic structural view of another external plug structure positive electrode cap for PVC batteries.

Wherein the reference numbers are:

1. metal cap, 2, annular insulating block, 2a, annular clamp groove, 2b, annular step, 2c, annular clamping groove, 2d, fillet, 3, annular convex rib.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 and 2, the utility model provides an outer stopper structure positive pole cap for PVC battery, including metal cap cover 1, be provided with an annular insulating block 2 of taking annular clamp groove 2a on the metal cap cover 1, annular insulating block 2 is through the edge part of annular clamp groove 2a centre gripping and parcel metal cap cover 1, the one side of annular insulating block 2 with the caping homonymy of metal cap cover 1 is provided with annular step 2b.

Specifically, the annular insulating block 2 is arranged on the metal cap 1 commonly used for the battery, and the annular insulating block 2 clamps and wraps the periphery of the metal cap 1 through the annular clamping groove 2a, so that the outer edge part of the lower end of the metal cap 1 has insulating property while the electrical conductivity of the middle cover body is kept. And then an annular step 2b is arranged on the upper end face of the annular insulating block 2, so that the fastening strip of the PVC battery with the outer plug structure can be well sleeved on the step, and the step separates the fastening strip made of metal materials from the positive electrode cap to prevent the battery from short circuit.

Wherein, the width dimension of the annular step 2b influences the length of the fastening strip hooped on the step, and further influences the overall structural stability of the battery. Therefore, in the present embodiment, preferably, the width H of the annular step 2b is less than or equal to the height H between the top end of the annular insulating block 2 and the top end of the metal cap 1.

As a modification, at least one annular rib 3 is arranged on the annular step 2b, and the annular rib 3 is coaxial with the annular step 2b.

Specifically, annular protruding muscle 3 can be the annular of the small range of round arch, and many annular protruding muscle 3 can be from inside to outside equidistant range in proper order, and aim at makes the fastening strip fasten more for strengthening the subsequent fastening strip of placing and the surperficial frictional strength of annular step 2b.

As another improvement, an annular clamping groove 2c is arranged on the outer side wall of the annular insulating block 2, and the annular clamping groove 2c is coaxial with the annular clamping groove 2 a.

Specifically, can set up on the fastening strip of outer stopper structure PVC battery with ring groove 2c assorted annular fixture block, ring groove 2 c's setting can strengthen the stability of being connected between fastening strip and the annular insulating block 2.

Preferably, the annular insulating block 2 is an injection molded plastic part. In the preparation process, the annular insulating block 2 can be formed by injection molding and attached to the metal cap 1. Preferably, the edge of the bottom end of the annular insulating block 2 is provided with a fillet 2d.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an outer stopper structure PVC positive pole cap for battery, includes the metal cap lid, its characterized in that: the metal cap is provided with an annular insulating block with an annular clamping groove, the annular insulating block clamps and wraps the edge part of the metal cap through the annular clamping groove, and an annular step is arranged on one surface of the annular insulating block, which is on the same side as the top of the metal cap.

2. The positive electrode cap for the external plug structure PVC battery according to claim 1, characterized in that: the width of the annular step is less than or equal to the height between the top end of the annular insulating block and the top end of the metal cap.

3. The positive electrode cap for the external plug structure PVC battery according to claim 1, characterized in that: the annular step is provided with at least one annular convex rib, and the annular convex rib and the annular step are coaxial.

4. The positive electrode cap for the external plug structure PVC battery according to claim 1, characterized in that: and the outer side wall of the annular insulating block is provided with an annular clamping groove, and the annular clamping groove are coaxial.

5. The positive electrode cap for the external plug structure PVC battery according to claim 1, characterized in that: the annular insulating block is a plastic piece formed by injection molding.

6. The positive electrode cap for the external plug structure PVC battery according to claim 1, characterized in that: and the edge part of the bottom end of the annular insulating block is provided with a fillet.