CN104078228B - A kind of fixture of Current Transformer Secondary overvoltage protection device - Google Patents
A kind of fixture of Current Transformer Secondary overvoltage protection device Download PDFInfo
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- CN104078228B CN104078228B CN201410261472.2A CN201410261472A CN104078228B CN 104078228 B CN104078228 B CN 104078228B CN 201410261472 A CN201410261472 A CN 201410261472A CN 104078228 B CN104078228 B CN 104078228B
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Abstract
The present invention relates to a kind of fixture of Current Transformer Secondary overvoltage protection device, comprise display panel (2) and mainboard (1), it is characterized in that: be symmetrical arranged two upper hems (2a) on the display panel, mainboard is symmetrical arranged the lower hem (1a) of two, corresponding lower hem and upper hem corresponding matching, the U-shaped clamp of equal snap-fit engagement (3) on corresponding lower hem and upper hem, the upper-lower position of each described U-shaped clamp (3) sidewall is symmetrical arranged one group of rectangular through-hole, be connected a shell fragment (4) in each rectangular through-hole, described shell fragment respectively with described upper hem and lower hem resilient engagement.Advantage of the present invention: this device not only can not be damaged to protector internal structure, and achieve dismountable being fixedly connected with, facilitate the maintenance of subsequent conditioning circuit plate, its structure is simple, and practical effect is good.
Description
Technical field
The present invention relates to a kind of fixture, particularly a kind of fixture of Current Transformer Secondary overvoltage protection device.
Background technology
Existing current transformer is widely used in electric power system.In normal work, Current Transformer Secondary side is near short circuit state, and output voltage is very low.When actual motion, if when one time winding flows through abnormal current, as produced thunder-strike current, resonance current, capacitance charging current, inductance starting current etc. in circuit, also the overvoltage of thousands of volt volt even up to ten thousand all can be produced at secondary side, this not only works the mischief to secondary side insulation, current transformer also can be caused time serious too drastic and burn, even jeopardizing the life security of staff.
Secondary over-voltage protector for current transformer internal structure more complicated, it is that screw is fixed that common protector is connected and fixed mode.When screw is fixed and twisted too loose, protector environmental suitability is poor, and slightly during impact shock, screw easily comes off; During overtorquing, easy injury protection device internal circuit board, is also unfavorable for follow-up installation and maintenance again.
Summary of the invention
The object of the invention is to solve the shortcoming existed in prior art, and the fixture of a kind of Current Transformer Secondary overvoltage protection device proposed.
To achieve these goals, present invention employs following technical scheme:
A kind of fixture of Current Transformer Secondary overvoltage protection device, comprise display panel and mainboard, it is characterized in that: the upper hem being symmetrical arranged two L-types on described display panel respectively, described mainboard is also symmetrical arranged the lower hem of two L-types respectively, corresponding lower hem and upper hem corresponding matching, equal snap-fit engagement U-shaped clamp on corresponding lower hem and upper hem, the upper-lower position of each described U-shaped clamp sidewall is symmetrical arranged one group of rectangular through-hole, be connected a shell fragment in each rectangular through-hole, be arranged on the shell fragment on the upside of U-shaped clamp and described upper hem resilient engagement, be arranged on the shell fragment on the upside of U-shaped clamp and described lower hem resilient engagement.
On the basis of technique scheme, following further technical scheme can be had:
The bending part of the lower hem of each described L-type is equipped with an elongated lower bayonet slot, and the bending part of the upper hem of each described L-type is also provided with an elongated upper draw-in groove.
Two sidewalls of the U-shaped opening of described U-shaped clamp are all inwardly symmetrical arranged a clamp, described clamp respectively with corresponding lower bayonet slot and upper draw-in groove snap-fit engagement.
The invention has the advantages that: this device not only can not be damaged to protector internal structure, and achieve dismountable being fixedly connected with, facilitate the maintenance of subsequent conditioning circuit plate, its structure is simple, and practical effect is good.
Accompanying drawing explanation
Fig. 1 is basic structure schematic diagram of the present invention.
Embodiment
As shown in Figure 1, the fixture of a kind of Current Transformer Secondary overvoltage protection device provided by the invention, comprise display panel 2 and mainboard 1, it is characterized in that: the upper hem 2a being symmetrical arranged two L-types on described display panel 2 respectively, described mainboard 1 is also symmetrical arranged the lower hem 1a of two L-types respectively, corresponding lower hem 1a and upper hem 2a corresponding matching, the U-shaped clamp 3 of equal snap-fit engagement one on corresponding lower hem 1a and upper hem 2a, the upper-lower position of each described U-shaped clamp 3 sidewall is symmetrical arranged one group of rectangular through-hole 3a, be connected a shell fragment 4 in each rectangular through-hole 3a, be arranged on the shell fragment 4 on the upside of U-shaped clamp 3 and described upper hem 2a resilient engagement, be arranged on the shell fragment 4 on the upside of U-shaped clamp 3 and described lower hem 1a resilient engagement.
The bending part of the lower hem 1a of each described L-type is equipped with an elongated lower bayonet slot 1b, and the bending part of the upper hem 2a of each described L-type is also provided with an elongated upper draw-in groove 2b.Two sidewalls of the U-shaped opening of described U-shaped clamp 3 are all inwardly symmetrical arranged a clamp 3b, described clamp 3b respectively with corresponding lower bayonet slot 1b and upper draw-in groove 2b snap-fit engagement.
Existing mounting means utilizes screw to be screwed on mainboard 1 by display panel 2, and this installation fixed form is easy to damage display panel 2 and mainboard 1, causes secondary over-voltage protector for current transformer operational failure.In order to eliminate this hidden danger, this device is on mainboard 1 and display panel 2, be provided with mutually corresponding lower hem 1a and upper hem 2a, mainboard 1 and display panel 2 is connected and fixed by U-shaped clamp 3, makes together with display panel 1 also plugs together with mainboard 2.The shell fragment 4 arranged can make display panel 1 and mainboard 2 combine more closely.
Claims (2)
1. the fixture of a Current Transformer Secondary overvoltage protection device, comprise display panel (2) and mainboard (1), it is characterized in that: the upper hem (2a) being symmetrical arranged two L-types on described display panel (2) respectively, described mainboard (1) is also symmetrical arranged the lower hem (1a) of two L-types respectively, corresponding lower hem (1a) and upper hem (2a) corresponding matching, corresponding lower hem (1a) and the upper same U-shaped clamp (3) of snap-fit engagement of upper hem (2a), the upper-lower position of each described U-shaped clamp (3) sidewall is symmetrical arranged one group of rectangular through-hole (3a), be connected a shell fragment (4) in each rectangular through-hole (3a), be arranged on shell fragment (4) and described upper hem (2a) resilient engagement of U-shaped clamp (3) upside, be arranged on shell fragment (4) and described lower hem (1a) resilient engagement of U-shaped clamp (3) upside,
The bending part of the lower hem (1a) of each described L-type is equipped with an elongated lower bayonet slot (1b), and the bending part of the upper hem (2a) of each described L-type is also provided with an elongated upper draw-in groove (2b).
2. the fixture of a kind of Current Transformer Secondary overvoltage protection device according to claim 1; it is characterized in that: two sidewalls of the U-shaped opening of described U-shaped clamp (3) are all inwardly symmetrical arranged a clamp (3b), described clamp (3b) respectively with corresponding lower bayonet slot (1b) and upper draw-in groove (2b) snap-fit engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261472.2A CN104078228B (en) | 2014-06-11 | 2014-06-11 | A kind of fixture of Current Transformer Secondary overvoltage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261472.2A CN104078228B (en) | 2014-06-11 | 2014-06-11 | A kind of fixture of Current Transformer Secondary overvoltage protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104078228A CN104078228A (en) | 2014-10-01 |
| CN104078228B true CN104078228B (en) | 2016-03-23 |
Family
ID=51599428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410261472.2A Active CN104078228B (en) | 2014-06-11 | 2014-06-11 | A kind of fixture of Current Transformer Secondary overvoltage protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104078228B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3316976A1 (en) * | 1983-05-09 | 1984-11-15 | Siemens AG, 1000 Berlin und 8000 München | ELECTRONIC INSTALLATION SWITCH |
| JP2001041211A (en) * | 1999-07-30 | 2001-02-13 | Olympus Optical Co Ltd | Box structure |
| JP2006316911A (en) * | 2005-05-13 | 2006-11-24 | Riken Light Metal Ind Co Ltd | Joint structure for strip material |
| CN202258768U (en) * | 2011-09-30 | 2012-05-30 | 安徽金力电气技术有限公司 | Fixing device for secondary side over-voltage protector of current transformer |
| DE102011116357A1 (en) * | 2011-10-19 | 2013-04-25 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Clamping element and mounting arrangement with clamping element, as well as method of use of the clamping element |
| CN202513758U (en) * | 2012-03-15 | 2012-10-31 | 厦门士林电机有限公司 | Novel connection structure of motor protector |
-
2014
- 2014-06-11 CN CN201410261472.2A patent/CN104078228B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104078228A (en) | 2014-10-01 |
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Effective date of registration: 20190424 Address after: 201604 333 Minta Road, Shihudang Town, Songjiang District, Shanghai Patentee after: Shanghai Beichang Technology Co., Ltd. Address before: 231100 No. 39 Jinrong Road, Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui Province Patentee before: ANHUI SANHE ELECTRIC POWER TECHNOLOGY CO., LTD. |
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