CN204088474U - A kind of dry cell - Google Patents
A kind of dry cell Download PDFInfo
- Publication number
- CN204088474U CN204088474U CN201420538873.3U CN201420538873U CN204088474U CN 204088474 U CN204088474 U CN 204088474U CN 201420538873 U CN201420538873 U CN 201420538873U CN 204088474 U CN204088474 U CN 204088474U
- Authority
- CN
- China
- Prior art keywords
- zinc cylinder
- carbon
- point
- active material
- positive active
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Battery Electrode And Active Subsutance (AREA)
Abstract
A kind of dry cell, comprise zinc cylinder and be positioned at carbon-point in the middle part of zinc cylinder, be filled in the positive active material of zinc cylinder, insulate between zinc cylinder inwall and positive active material, be provided with upper cover at zinc cylinder opening part, carbon-point top is provided with the metal cap higher than upper cover.Zinc cylinder outer bottom is directly carried out polishing by the utility model, both ensure that the attractive in appearance of battery, decrease parts, reduce production cost and operation, decrease the internal resistance of cell, and carbon-point and positive active material and contact area and metal cap and carbon-point contact area larger, improve the electric conductivity of battery.
Description
Technical field
The utility model belongs to cell art, is specifically related to a kind of dry cell improvement opportunity.
Background technology
In existing dry cell, in order to increase its aesthetic, generally fix the steel disc of a light at bottom cathode end.In this class formation, owing to adding parts, both added cost of manufacture and operation, too increased the internal resistance of cell.
Summary of the invention
In view of this, the technical problems to be solved in the utility model is a kind of good conductivity, dry cell attractive in appearance.
In order to solve the problems of the technologies described above, the utility model adopts following scheme to realize:
A kind of dry cell, comprise zinc cylinder and be positioned at carbon-point in the middle part of zinc cylinder, be filled in the positive active material of zinc cylinder, insulate between zinc cylinder inwall and positive active material, at zinc cylinder opening part, upper cover is installed, carbon-point top is provided with the metal cap higher than upper cover, described zinc cylinder outer bottom is smooth surface, and this smooth surface is battery cathode output.
Wherein, described carbon-point surface is provided with conduit, and this conduit is cannelure or cannelure or helicla flute.
Wherein, metal cap arranges groove, this groove is stuck in carbon-point.
Zinc cylinder outer bottom is directly carried out polishing by the utility model, both ensure that the attractive in appearance of battery, decrease parts, reduce production cost and operation, decrease the internal resistance of cell, and carbon-point and positive active material and contact area and metal cap and carbon-point contact area larger, improve the electric conductivity of battery.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
In order to allow those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1.The dry cell that the utility model discloses comprises zinc cylinder 1 and is positioned at carbon-point 2 in the middle part of zinc cylinder 1, is filled in the positive active material 3 of zinc cylinder 1, insulate between zinc cylinder 1 inwall and positive active material 3, at zinc cylinder 1 opening part, upper cover 4 is installed, carbon-point 2 top is provided with the metal cap 5 higher than upper cover, be smooth surface to increase its this zinc cylinder 1 outer bottom 11 attractive in appearance, this smooth surface is battery cathode output.Adopt this smooth surface as cathode output end, can ensure to contact better with external conductor when connecting external power source, effectively reduce contact resistance, improve the conductivity of battery.
Meanwhile, carbon-point 2 surface is provided with conduit 21, this conduit 21 is cannelure.Carbon-point 2 and the contact-making surface of positive active material can be increased by cannelure, further increase the conductivity of battery.
Certainly, this conduit also can be cannelure or helicla flute.
In addition, metal cap 5 is also provided with groove 51, this groove 51 is stuck in carbon-point 2.This structure can increase metal cap 5 and the contact area of carbon-point, also can increase the stable of metal cap position.
Above-described embodiment is only wherein specific implementation of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.
Claims (3)
1. a dry cell, comprise zinc cylinder (1) and be positioned at carbon-point (2) in the middle part of zinc cylinder, be filled in the positive active material (3) of zinc cylinder, insulate between zinc cylinder inwall and positive active material, at zinc cylinder opening part, upper cover (4) is installed, carbon-point top is provided with the metal cap (5) higher than upper cover, it is characterized in that, described zinc cylinder outer bottom (11) is smooth surface, and this smooth surface is battery cathode output.
2. dry cell according to claim 1, is characterized in that, described carbon-point surface is provided with conduit (21), and this conduit is cannelure or cannelure or helicla flute.
3. dry cell according to claim 2, is characterized in that, metal cap arranges groove (51), and this groove is stuck in carbon-point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538873.3U CN204088474U (en) | 2014-09-19 | 2014-09-19 | A kind of dry cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538873.3U CN204088474U (en) | 2014-09-19 | 2014-09-19 | A kind of dry cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204088474U true CN204088474U (en) | 2015-01-07 |
Family
ID=52181150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420538873.3U Expired - Fee Related CN204088474U (en) | 2014-09-19 | 2014-09-19 | A kind of dry cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204088474U (en) |
-
2014
- 2014-09-19 CN CN201420538873.3U patent/CN204088474U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20180919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |