CN201838539U - Fuse cylinder - Google Patents
Fuse cylinder Download PDFInfo
- Publication number
- CN201838539U CN201838539U CN2010205508830U CN201020550883U CN201838539U CN 201838539 U CN201838539 U CN 201838539U CN 2010205508830 U CN2010205508830 U CN 2010205508830U CN 201020550883 U CN201020550883 U CN 201020550883U CN 201838539 U CN201838539 U CN 201838539U
- Authority
- CN
- China
- Prior art keywords
- plum blossom
- blossom seat
- shell
- seat
- following
- 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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Abstract
A fuse cylinder comprises a shell, a tripping rack assembly, a plug, a fuse tube disposed in the shell, a lower contact seat, an upper plum-blossom-shaped socket and a lower plum-blossom-shaped socket, wherein the inner wall of the lower contact seat is provided with a step face, the lower end face of the shell is abutted to the step face, swing pieces of the lower plum-blossom-shaped socket are clamped between the step face of the lower contact seat and the lower end face of the shell, a copper washer is disposed below the lower plum-blossom-shaped socket, and the inner bottom face of the lower plum-blossom-shaped socket contacts with the lower end face of the fuse tube tightly.
Description
Technical field
The utility model relates to high-voltage switch gear accessory field, the fuse unit that particularly a kind of high-pressure aerated cabinet is used.
Background technology
Fuse unit is an indispensable vitals in the inflation cabinet, break-make for switch plays an important role, existing fuse unit comprises shell, dropout frame assembly, chock plug, be arranged at the cartridge fuse in the shell, following contact base, parts such as last plum blossom seat and following plum blossom seat, the upper end of cartridge fuse contacts with the inner bottom surface of last plum blossom seat, the lower end of cartridge fuse contacts with the inner bottom surface of following plum blossom seat, in actual production, because there is certain error in the length of cartridge fuse, therefore, cartridge fuse is not fine with last plum blossom seat inner bottom surface or following contacting of plum blossom seat inner bottom surface, influences the operate as normal of circuit.
Summary of the invention
The purpose of this utility model is at the cartridge fuse of the existing fuse unit described in the background technology and last plum blossom seat or descends the plum blossom seated connection to touch bad problem, a kind of fuse unit is provided.
The realization the technical solution of the utility model is as follows:
A kind of fuse unit, it comprises shell, dropout frame assembly, chock plug, is arranged at the interior cartridge fuse of shell, descends contact base, goes up plum blossom seat and following plum blossom seat, described contact base internal face down is provided with step surface, the lower surface of shell withstands on this step surface, the fin of following plum blossom seat is stuck in down between the lower surface of the step surface of contact base and shell, following plum blossom seat below is provided with copper backing, and the inner bottom surface of following plum blossom seat closely contacts with the lower surface of cartridge fuse.
For the inner bottom surface that makes down the plum blossom seat closely contacts with the lower surface of cartridge fuse, the axial angle of the fin of described plum blossom seat down and fuse unit is 45 °～70 °.
In order further to improve being connected of cartridge fuse and last plum blossom seat and following plum blossom seat, the thickness of described pad is 0.5 centimetre～2 centimetres.
The beneficial effects of the utility model for because in the fuse unit of the present utility model down the fin of plum blossom seat be stuck between the step surface of the lower surface of shell and following contact base, below following plum blossom seat, be provided with copper backing, therefore the inner bottom surface of plum blossom seat and the lower surface of cartridge fuse can be held out against, the error in length of compensation cartridge fuse, improve being connected between cartridge fuse and last plum blossom seat and the following plum blossom seat, improve the quality of connection of circuit.Because the axial angle of the fin of following plum blossom seat and fuse unit is 45 °～70 °, therefore cartridge fuse is closely contacted with the inner bottom surface of last plum blossom seat and following plum blossom seat, because below following plum blossom seat, be provided with 0.5 centimetre～2 centimetres copper backing, therefore can further strengthen being connected between the inner bottom surface of cartridge fuse and last plum blossom seat and following plum blossom seat.By above setting, the electric conductivity between cartridge fuse and last plum blossom seat and the following plum blossom seat is protected.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model;
Among the figure, 1 is shell, and 2 for dropout frame assembly, and 3 be chock plug, and 4 be cartridge fuse, and 5 are contact base down, and 6 is last plum blossom seat, 7 be under the plum blossom seat, 8 is step surface, 9 is copper backing, 10 is fin.
Embodiment
With reference to a kind of fuse unit shown in Figure 1, it comprises shell 1, dropout frame assembly 2, chock plug 3, is arranged at cartridge fuse 4, time contact base 5, last plum blossom seat 6 and following plum blossom seat 7 in the shell 1, described contact base 5 internal faces down are provided with step surface 8, the lower surface of shell 1 withstands on this step surface 8, the fin 10 of following plum blossom seat 7 is stuck in down between the lower surface of the step surface 8 of contact base 5 and shell 1, following plum blossom seat 7 belows are provided with copper backing 9, and the inner bottom surface of following plum blossom seat 7 closely contacts with the lower surface of cartridge fuse 4.For the inner bottom surface that makes down plum blossom seat 7 closely contacts with the lower surface of cartridge fuse 4, the axial angle of the fin 10 of described plum blossom seat 7 down and fuse unit is 45 °～70 °.In order further to improve being connected of cartridge fuse 4 and last plum blossom seat 6 and following plum blossom seat 7, the thickness of described pad is 0.5 centimetre～2 centimetres.
In actual design, also can improve being connected of cartridge fuse 4 and last plum blossom seat 6 and following plum blossom seat 7 in that pad or the fin 10 by plum blossom seat 6 on changing and the mode of the axial angle of fuse unit are set above the last plum blossom seat 6.
Because in the fuse unit of the present utility model down the fin 10 of plum blossom seat 7 be stuck between the step surface 8 of the lower surface of shell 1 and following contact base 5, below following plum blossom seat 7, be provided with copper backing 9, therefore the inner bottom surface of plum blossom seat and the lower surface of cartridge fuse 4 can be held out against, the error in length of compensation cartridge fuse 4, improve being connected between cartridge fuse 4 and last plum blossom seat 6 and the following plum blossom seat 7, improve the quality of connection of circuit.Because the axial angle of fin of following plum blossom seat 7 10 and fuse unit is 45 °～70 °, therefore cartridge fuse 4 is closely contacted with the inner bottom surface of last plum blossom seat 6 and following plum blossom seat 7, because below following plum blossom seat 7, be provided with 0.5 centimetre～2 centimetres copper backing 9, therefore can further strengthen being connected between the inner bottom surface of cartridge fuse 4 and last plum blossom seat 6 and following plum blossom seat 7.By above setting, the electric conductivity between cartridge fuse 4 and last plum blossom seat 6 and the following plum blossom seat 7 is protected.
Claims (3)
1. fuse unit, it comprises shell, dropout frame assembly, chock plug, is arranged at the interior cartridge fuse of shell, descends contact base, goes up plum blossom seat and following plum blossom seat, it is characterized in that: described contact base internal face down is provided with step surface, the lower surface of shell withstands on this step surface, the fin of following plum blossom seat is stuck in down between the lower surface of the step surface of contact base and shell, following plum blossom seat below is provided with pad, and the inner bottom surface of following plum blossom seat closely contacts with the lower surface of cartridge fuse.
2. fuse unit according to claim 1 is characterized in that: the axial angle of the fin of described plum blossom seat down and fuse unit is 45 °～70 °.
3. fuse unit according to claim 1 is characterized in that: the thickness of described pad is 0.5 centimetre～2 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205508830U CN201838539U (en) | 2010-09-29 | 2010-09-29 | Fuse cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205508830U CN201838539U (en) | 2010-09-29 | 2010-09-29 | Fuse cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201838539U true CN201838539U (en) | 2011-05-18 |
Family
ID=44008642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205508830U Expired - Fee Related CN201838539U (en) | 2010-09-29 | 2010-09-29 | Fuse cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201838539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091739A (en) * | 2014-07-10 | 2014-10-08 | 朱桂盛 | Plug-in type fuse protector |
-
2010
- 2010-09-29 CN CN2010205508830U patent/CN201838539U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091739A (en) * | 2014-07-10 | 2014-10-08 | 朱桂盛 | Plug-in type fuse protector |
| CN104091739B (en) * | 2014-07-10 | 2016-03-23 | 朱桂盛 | A kind of plug-in type fuse |
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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: 20110518 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |