CN203910563U - Pressure spring-type flat contactor - Google Patents
Pressure spring-type flat contactor Download PDFInfo
- Publication number
- CN203910563U CN203910563U CN201420341245.6U CN201420341245U CN203910563U CN 203910563 U CN203910563 U CN 203910563U CN 201420341245 U CN201420341245 U CN 201420341245U CN 203910563 U CN203910563 U CN 203910563U
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- CN
- China
- Prior art keywords
- contact
- holding piece
- leg
- shaped groove
- spring
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- 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
The utility model discloses a pressure spring-type flat contactor, which comprises a flat contactor body. The flat contactor body comprises a first contact board and a second contact board; a first U-shaped groove is formed on the first contact board; a first supporting pin and a second supporting pin are respectively formed at two sides of the first U-shaped groove; a second U-shaped groove is formed on the second contact board; a third supporting pin and a fourth supporting pin are respectively formed at two sides of the second U-shaped groove; two first guide columns are connected between the first supporting pin and the third supporting pin; two second guide columns are connected between the second supporting pin and the fourth supporting pin; the first guide column is sleeved with a plurality of clamping pieces; the second guide column is sleeved with second clamping pieces; any first clamping piece on the first guide column is corresponding to one second clamping piece on the second guide column on the horizontal plane; and a spring is connected between the first clamping piece and the second clamping piece corresponding to the first clamping piece.
Description
Technical field
The utility model relates to electrical contact, particularly relates to the flat contact of a kind of compressed spring type.
Background technology
The contact that can break is indispensable part in device for switching, by its structure difference, can be divided into again following several: (1) knife contact: it is simple in structure, and be divided into face contact and contact with line, be widely used in low tension switch and high voltage isolator.(2) dock contact: have feature simple in structure, quick action, but contact-making surface is unstable, changes greatly with pressure, easily bounce when action, without self-cleaning action, contact is easily by electric arc burn.In the distributor breaker that this contact is usually used in rated current below 1000A with lower than 500A.(3) wedging shape (fingertip) contact: formed by the paired contact and the wedge shape contact block that are fitted in stud sleeve spring on conductive seat, general wedge shape contact block is as moving contact, but also have conversely, wedge shape contact block is made to fixed contact, be clipped in contact on conductive seat and make moving contact.This contact, in the contact of dynamic and static contact, rubs mutually, and contact-making surface is able to automatic cleaning.Its electrodynamical stability is higher, has self-cleaning action, and the group number that increases contact and voussoir may increase rated current, but lateral dimension also increased, and makes assembling that difficulty occur.Operating current is generally limited in below 5000A, reaches as high as 12000A.The working surface of contact, easily by electric arc burn, is generally only made main contact and is not made arcing contact.(4) plug-in type (quincunx) contact: fixed contact is made up of the trapezoidal fingertip of multi-disc.Be divided into and have flexible conductive sheet and without two kinds of flexible conductive sheets.Have the socket of flexible conductive sheet, have a groove on fingertip, groove is embedded in insulating case, put screwed pipe spring into, to ensure the pressure of fingertip to conducting rod, the spring other end supported by annulus, can be along the surrounding of conducting rod (moving contact) adjusting contact finger position a little.Fingertip is connected with contact base by flexible conductive sheet.Without the socket of flexible conductive sheet, cancel the conducting strip of complex structure and unstable properties, utilize spring directly fingertip to be pressed on conductive seat.Moving contact is circular copper conducting rod, in order to increase the anti-arc ability of contact, usually installs copper-tungsten guard ring additional in contact base overcoat end, installs the are-tight head of copper-tungsten in conducting rod end additional.When connection, conducting rod is inserted in socket, and trapezoidal fingertip is pressed on conducting rod by spring, utilizes socket internal diameter to coordinate with the suitable of conducting rod, makes every fingertip and conducting rod form two lines and contacts, and contact is reliable.Meanwhile, the pressure direction between dynamic/static contact is vertical with the direction of motion, and spring when contact is connected is little.When dynamic and static contact relative motion, produce friction, have self-cleaning action.Short circuit current by time, because the sense of current between fingertip and between fingertip and conducting rod is consistent, fingertip is pressed to conducting rod by electric power trend, dynamic stability is good, but this structure of contact terminal more complicated allow the electric current passing through to be also restricted, and switch off time is longer.Also be applied in the distrbution network below 35KV more.Sliding contact is can relative motion unseparated connection again between the dynamic and static contact of maintenance.Be divided into Z-shaped finger-contact type sliding contact and rolling type sliding contact.(1) Z-shaped finger-contact type sliding contact: structure is similar to socket contacts.It is that Z-shaped fingertip is contained in conductive seat, keeps fingertip position with spring, and the both sides of fingertip is pressed to respectively to conducting rod and conductive seat and form.Its advantage is: highly little, assembling is simple, there is no conducting strip, and contact stabilization, has self-cleaning action, so application is very wide.(2) rolling type sliding contact: moving contact is circular conducting rod, determining contact is made up of two round bar conductive seats and the red copper roller that is contained in pairs between conducting rod and conductive seat, spring is equipped with in roller both sides, by the pressure of spring, keep contacting between roller and conducting rod, roller and conductive seat.Electric current just conducts between conducting rod, roller, conductive seat.Because moving contact moves, rolling friction resistance is little, and the self-cleaning action of contact is poor.Multiplexly make the high middle contact that breaks moving device.
In prior art, general flat contact is all a kind of contact of U-shaped, U-lag both sides are respectively arranged with a guide pillar that is used for being socketed metal holding piece, holding piece on two guide pillars by clamp connection together, but left and right holding piece can open after this clip is heated, thereby cause clamping dynamics inadequate.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of for the above-mentioned state of the art can improve the flat contact of the compressed spring type of clamping force between holding piece.
For achieving the above object, key is to make the clip between original holding piece into other mechanism, in order to adapt to the environment of high pressure vacuum, high temperature, and can ensure the clamping force between holding piece.For this reason, the utility model provides following technical scheme:
The flat contact of a kind of compressed spring type, include flat contact body, described flat contact body comprises two the first contact plate and the second contact plates that 10mm is thick, described the first contact plate is identical with the second contact plate shape, on described the first contact plate, be formed with the first U-shaped groove, described the first contact plate has been formed separately the first leg and the second leg in the both sides of described the first U-shaped groove, on described the second contact plate, be formed with the second U-shaped groove, described the first U-shaped groove and described the second U-shaped groove are just right, described the second contact plate has been formed separately the 3rd leg and the 4th leg in the both sides of described the second U-shaped groove, described the first leg and described the 3rd leg are just right in perpendicular, described the second leg and described the 4th leg are just right in perpendicular, between described the first leg and the 3rd leg, be connected with two the first guide pillars, between described the second leg and the 4th leg, be connected with two the second guide pillars, on described the first guide pillar, be socketed with polylith the first holding piece, each the first holding piece is parallel to each other, on described the second guide pillar, be socketed with the second holding piece with described the first holding piece equal number, each the second holding piece is parallel to each other, and any first holding piece on described the first guide pillar in horizontal plane all to second holding piece that should have to be socketed on the second guide pillar, wherein, described the first holding piece and and corresponding the second holding piece of this first holding piece between be connected with spring.
Adopt the flat contact of compressed spring type of this structure, to replace clip of the prior art as the medium that clamps holding piece with spring, the in the situation that of high pressure vacuum, even if be heated, spring still can ensure good elasticity, and can rotate, thereby improve the clamping force between two holding pieces.
As the flat contact of compressed spring type in the utility model preferably, on described the first holding piece, be formed with protruding block, on second holding piece corresponding with this first holding piece, be also formed with protruding block, described spring is fixed between two protruding blocks.
Adopt the flat contact of compressed spring type of this structure, on the first holding piece and the second holding piece, be formed separately the columned protruding block in place, can facilitate spring to fix.
As improvement of the present utility model, described both ends of the spring is all formed with hook-shaped connecting portion, and two described hook-shaped connecting portions are hooked in respectively on two described protruding blocks.
Adopt the flat contact of compressed spring type of this structure, at the both ends of the spring hook-shaped connecting portion that is shaped, this hook-shaped connecting portion be shaped as crescent, shape adaptation with above-mentioned two protruding blocks, can be by this hook-shaped connecting portion hook joint on columned protruding block, thus spring is firmly fixed between two clamping parts.
In sum, compared with prior art, the utility model has the advantage of: be to replace clip of the prior art as the medium that clamps holding piece with spring, the in the situation that of high pressure vacuum, even if be heated, spring still can ensure good elasticity, and can rotate, thereby has improved the clamping force between two holding pieces.
Brief description of the drawings
Fig. 1 is the front view of oil-immersed current transformer in the utility model embodiment;
Fig. 2 is the installation site cutaway view of oil-immersed current transformer inner core in the utility model embodiment;
Fig. 3 is the end view of oil-immersed current transformer in the utility model embodiment.
Reference numeral:
1, the first contact plate; 2, the second contact plate; 3, the first U-shaped groove; 3.1, the first leg; 3.2, the second leg; 4, the second U-shaped groove; 4.1, the 3rd leg; 4.2, the 4th leg; 5, the first guide pillar; 5.1, the first holding piece; 5.1.1, the first protruding block; 6, the second guide pillar; 6.1, the second holding piece; 6.1.1, the second protruding block; 7, spring; 7.1, hook-shaped connecting portion.
Embodiment
In this manual, easy in order to narrate, be with the flat contact normal operating conditions of compressed spring type as a reference, the top of the flat contact of compressed spring type under this state is called to top, and with this like.
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1-Figure 3, the present embodiment is the flat contact of a kind of compressed spring type, include flat contact body, described flat contact body comprises two the first contact plate 1 and the second contact plates 2 that 10mm is thick, described the first contact plate 1 is identical with the second contact plate 2 shapes, on described the first contact plate, be formed with the first U-shaped groove 3, described the first contact plate 1 has been formed separately the first leg 3.1 and the second leg 3.2 in the both sides of described the first U-shaped groove 3, on described the second contact plate 2, be formed with the second U-shaped groove 4, described the first U-shaped groove 3 is just right with described the second U-shaped groove 4, described the second contact plate 2 has been formed separately the 3rd leg 4.1 and the 4th leg 4.2 in the both sides of described the second U-shaped groove 4, described the first leg 3.1 is just right in perpendicular with described the 3rd leg 4.1, described the second leg 3.2 is just right in perpendicular with described the 4th leg 4.2, between described the first leg and the 3rd leg, be connected with two the first guide pillars 5, between described the second leg and the 4th leg, be connected with two the second guide pillars 6, on described the first guide pillar, be socketed with polylith the first holding piece 5.1, each the first holding piece is parallel to each other, on described the second guide pillar, be socketed with the second holding piece 6.1 with described the first holding piece equal number, each the second holding piece is parallel to each other, and any first holding piece on described the first guide pillar in horizontal plane all to second holding piece that should have to be socketed on the second guide pillar, described the first holding piece and and corresponding the second holding piece of this first holding piece between be connected with spring 7.
On described the first holding piece, be formed with the first protruding block 5.1.1, be also formed with the second protruding block 6.1.1 on the second holding piece corresponding with this first holding piece, described spring is fixed between the first protruding block and the second protruding block.Concrete, being all formed with hook-shaped connecting portion 7.1 at described both ends of the spring, two described hook-shaped connecting portions are hooked in respectively on two described protruding blocks.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. the flat contact of compressed spring type, include flat contact body, described flat contact body comprises two the first contact plate and the second contact plates that 10mm is thick, described the first contact plate is identical with the second contact plate shape, on described the first contact plate, be formed with the first U-shaped groove, described the first contact plate has been formed separately the first leg and the second leg in the both sides of described the first U-shaped groove, on described the second contact plate, be formed with the second U-shaped groove, described the first U-shaped groove and described the second U-shaped groove are just right, described the second contact plate has been formed separately the 3rd leg and the 4th leg in the both sides of described the second U-shaped groove, described the first leg and described the 3rd leg are just right in perpendicular, described the second leg and described the 4th leg are just right in perpendicular, between described the first leg and the 3rd leg, be connected with two the first guide pillars, between described the second leg and the 4th leg, be connected with two the second guide pillars, on described the first guide pillar, be socketed with polylith the first holding piece, each the first holding piece is parallel to each other, on described the second guide pillar, be socketed with the second holding piece with described the first holding piece equal number, each the second holding piece is parallel to each other, and any first holding piece on described the first guide pillar in horizontal plane all to second holding piece that should have to be socketed on the second guide pillar, it is characterized in that:
Described the first holding piece and and corresponding the second holding piece of this first holding piece between be connected with spring.
2. the flat contact of compressed spring type according to claim 1, is characterized in that: on described the first holding piece, be formed with protruding block, on second holding piece corresponding with this first holding piece, be also formed with protruding block, described spring is fixed between two protruding blocks.
3. the flat contact of compressed spring type according to claim 2, is characterized in that: described both ends of the spring is all formed with hook-shaped connecting portion, and two described hook-shaped connecting portions are hooked in respectively on two described protruding blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341245.6U CN203910563U (en) | 2014-06-24 | 2014-06-24 | Pressure spring-type flat contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341245.6U CN203910563U (en) | 2014-06-24 | 2014-06-24 | Pressure spring-type flat contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910563U true CN203910563U (en) | 2014-10-29 |
Family
ID=51784819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420341245.6U Expired - Fee Related CN203910563U (en) | 2014-06-24 | 2014-06-24 | Pressure spring-type flat contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887832A (en) * | 2017-03-27 | 2018-04-06 | 江苏明及电气股份有限公司 | A kind of direct-push metal closed switch cabinet and elastic card joint |
| CN108133868A (en) * | 2017-12-29 | 2018-06-08 | 武汉长海电气科技开发有限公司 | A kind of D.C. contactor contact system |
| CN108133868B (en) * | 2017-12-29 | 2024-04-30 | 武汉长海电气科技开发有限公司 | Direct current contactor contact system |
-
2014
- 2014-06-24 CN CN201420341245.6U patent/CN203910563U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887832A (en) * | 2017-03-27 | 2018-04-06 | 江苏明及电气股份有限公司 | A kind of direct-push metal closed switch cabinet and elastic card joint |
| CN108133868A (en) * | 2017-12-29 | 2018-06-08 | 武汉长海电气科技开发有限公司 | A kind of D.C. contactor contact system |
| CN108133868B (en) * | 2017-12-29 | 2024-04-30 | 武汉长海电气科技开发有限公司 | Direct current contactor contact system |
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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: 20141029 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |