CN204720327U - Large Copacity Mume flower contact and the electrical contact system for switching device - Google Patents
Large Copacity Mume flower contact and the electrical contact system for switching device Download PDFInfo
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- CN204720327U CN204720327U CN201520364445.8U CN201520364445U CN204720327U CN 204720327 U CN204720327 U CN 204720327U CN 201520364445 U CN201520364445 U CN 201520364445U CN 204720327 U CN204720327 U CN 204720327U
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Abstract
The utility model provides a kind of Large Copacity Mume flower contact and the electrical contact system for switching device, comprise multiple conductive contact finger (132) and support (134), described multiple conductive contact finger (132) is mounted on support (134), it is applicable to after Large Copacity Mume flower contact is connected with fixed contact (14), and described multiple conductive contact finger (132) forms stable electrical with fixed contact (14) and is connected; Also comprise conductive contact finger spring (133); The inner surface of described multiple conductive contact finger (132) has conductive contact finger spring groove (1322), for being fixed by conductive contact finger spring (133); Described conductive contact finger spring (133) is applicable to, after Large Copacity Mume flower contact is connected with fixed contact (14), forms stable electrical be connected with fixed contact (14).
Description
Technical field
The utility model belongs to power product technical field, be specifically related to a kind of Mume flower contact being applied to medium voltage switchgear equipment, achieve the performance requirement meeting large parameter high power capacity under less size prerequisite, be mainly used in transformation business and the following miniaturized development trend of switchgear of switchgear under special occasions.
Background technology
In the design of existing switchgear, Mume flower contact is the design of a kind of insulating contact preferably, but we need very large-sized Mume flower contact and fixed contact to carry out the performance requirement of satisfied large parameter high power capacity usually, for rated current 3150A and short time withstand current 50kA/4s, Mume flower contact size is often at more than 150mm, conductive contact finger quantity is also at about 64, and simultaneously corresponding fixed contact is generally at 109mm.
Figure 1A-1B is depicted as a kind of typically existing Mume flower contact structural representation for switching device, and wherein, Figure 1A is that Mume flower contact is installed on schematic diagram in switching device, and Fig. 2 B is Mume flower contact stereogram.As seen in figs. 1 a-1b, it is inner that fixed contact 34 and conducting copper 35 are fixed on insulation contact box 31 successively, Mume flower contact 33 is fixed on conductive contact arm 32 front end, operationally conductive contact arm 32 travels forward together with Mume flower contact 33, Mume flower contact 33 and fixed contact 34 realize reliable contacts, thus realize the function of primary conductive loop connection.Mume flower contact 33 forms primarily of stainless steel stent 333 and the conductive contact finger 332 be distributed on stainless steel stent 333, and fixing spring 331 provides suitable contact to ensure the reliability connected simultaneously.
But existing this design, when being applicable to Large Copacity electric current, Mume flower contact needs the volume that does larger.Or when not increasing volume, for some big current, then can not be suitable for.In addition in existing switchgear transformation business we also often because switch cubicle limits the size of fixed contact, thus in the urgent need to a kind of Mume flower contact scheme of compact high-capacity.
Utility model content
An aspect of the present utility model, a kind of Large Copacity Mume flower contact for switching device is provided, comprise multiple conductive contact finger and support, described multiple conductive contact finger is mounted on support, it is applicable to after Large Copacity Mume flower contact is connected with fixed contact, and described multiple conductive contact finger and fixed contact form stable electrical and be connected; Also comprise conductive contact finger spring; The inner surface of described multiple conductive contact finger has conductive contact finger spring groove, for being fixed by conductive contact finger spring; Described conductive contact finger spring is applicable to after Large Copacity Mume flower contact is connected with fixed contact, forms stable electrical be connected with fixed contact.
According to a most preferred embodiment of the present utility model, the outer surface of described multiple conductive contact finger has fixing spring groove, and described multiple conductive contact finger is fixed on support by the fixing spring be arranged in fixing spring groove.
According to another most preferred embodiment of the present utility model, the outer surface of described multiple conductive contact finger has fixation spring tab groove, and described multiple conductive contact finger is fixed on support by the fixation spring tab be arranged in fixation spring tab groove.
According to most preferred embodiment of the present utility model, described fixing spring groove comprises two.Described fixing spring comprises two.
According to most preferred embodiment of the present utility model, conductive contact finger spring groove comprises two.Conductive contact finger spring comprises two.
According to most preferred embodiment of the present utility model, described multiple conductive contact finger has contact, and described contact is silver-plated.
Another aspect of the present utility model, provides a kind of electrical contact system for switching device, comprises fixed contact, also comprises as the Large Copacity Mume flower contact above as described in any one.
Compact high-capacity Mume flower contact of the present utility model, introduces conductive contact finger spring as auxiliary conductive element while significantly reducing intrinsic dimension volume, thus achieves the jumbo performance requirement of high parameter.It is simple that the utility model has structure, and cost is reasonable, installs the features such as simple and easy.
Accompanying drawing explanation
Figure 1A-1B is depicted as the existing Mume flower contact structural representation for switching device, and wherein, Figure 1A is that Mume flower contact is installed on schematic diagram in switching device, and Fig. 2 B is Mume flower contact stereogram;
Fig. 2 A-2B is depicted as the Large Copacity Mume flower contact one most preferred embodiment structural representation for switching device of the present utility model, and wherein, Fig. 2 A is profile, and Fig. 2 B is stereogram;
Fig. 3 is the conductive contact finger structural representation of the Large Copacity Mume flower contact for switching device of the present utility model;
Fig. 4 A-4B is Large Copacity Mume flower contact most preferred embodiment for switching device of the present utility model, is installed on schematic diagram in switching device; Wherein, Fig. 4 A is stereogram, and Fig. 4 B is profile;
Fig. 5 is another most preferred embodiment structural representation of the Large Copacity Mume flower contact for switching device of the present utility model.
Embodiment
Below with reference to accompanying drawing, give the specific descriptions of Alternate embodiments of the present utility model.
Be a most preferred embodiment structural representation of the Large Copacity Mume flower contact for switching device of the present utility model as seen in figs. 2a-2b, wherein, Fig. 2 A is profile, and Fig. 2 B is stereogram.
According to most preferred embodiment of the present utility model, Large Copacity Mume flower contact comprises multiple conductive contact finger 132 and support 134, described multiple conductive contact finger 132 is mounted on support 134, it is applicable to after Large Copacity Mume flower contact is connected with fixed contact 14, and described multiple conductive contact finger 132 and fixed contact 14 form stable connection.Large Copacity Mume flower contact also comprises conductive contact finger spring 133; The inner surface of described multiple conductive contact finger 132 has conductive contact finger spring groove 1322, for being fixed by conductive contact finger spring 133; Described conductive contact finger spring 133 is applicable to after Large Copacity Mume flower contact is connected with fixed contact 14, forms stable connection with fixed contact 14.
Be the Mume flower contact installation diagram of a most preferred embodiment of the present utility model as shown in Figure 2 B, the outer surface of multiple conductive contact finger 132 has fixing spring groove 1321, and described multiple conductive contact finger 132 is fixed on stainless steel stent 134 by the fixing spring 131 be arranged in fixing spring groove 1321.Fixing spring 131 is assemblied in conductive contact finger 132 two ends, rational contact after ensureing Mume flower contact assembling.Multiple conductive contact fingers 132 assemble the internal diameter of rear formation, are just slightly less than the outer through 14D of fixed contact 14, under the active force of fixing spring 131, can ensure multiple conductive contact finger 132 be connected with fixed contact 14 after reliable point cantact.
Be as shown in Figure 2 A, conductive contact finger 132 is the silver-plated copper conductive contact finger of specific customization, conductive contact finger spring groove 1322 inside conductive contact finger 132, design by the dimensions of conductive contact finger spring 133, after conductive contact finger 132 is evenly distributed on support 134, inner formation annular mounting groove, makes conductive contact finger spring 133 can be assemblied in wherein.
As shown in Figure 3, conductive contact finger 132 there is contact 1323,1324.Near fixed contact side is connecting terminal 1323, and near conductive contact arm side is contact, contact arm side 1324.
Fig. 4 A-4B is Large Copacity Mume flower contact most preferred embodiment for switching device of the present utility model, is installed on schematic diagram in switching device; Wherein, Fig. 4 A is stereogram, and Fig. 4 B is section.It is inner that conducting copper 15 and fixed contact 14 are fixed on insulation contact box 11 successively, compact Mume flower contact 13 is fixed on the conductive contact arm 12 of switchgear, operationally conductive contact arm 12 travels forward certain stroke together with Mume flower contact 13, Mume flower contact 13 and fixed contact 14 realize reliable contacts, thus realize the function of primary conductive loop connection.
As shown in Figure 4 B, be fixed on the occlusion amount that the Mume flower contact 13 of conductive contact arm 12 front end and fixed contact 14 achieve 30 ~ 40mm, and conductive contact arm 12 and Mume flower contact 13 are in relatively-stationary connection in most preferred embodiment of the present utility model, ensure that two, junction contacts circle reliably, the conductive contact finger spring 133 be respectively on the right side of Fig. 4 B contacts the contact circle formed with conductive contact arm 12, contact with the contact, contact arm side 1324 of Mume flower contact 13 the contact circle formed with conductive contact arm 12.
In like manner also achieve two in Mume flower contact 13 and the junction of fixed contact 14 and contact circle reliably, the conductive contact finger spring 133 be respectively on the left of Fig. 4 B contacts the contact circle formed with fixed contact 14, contact with the connecting terminal 1323 of Mume flower contact 13 the contact circle formed with fixed contact 14.
Fig. 5 is another most preferred embodiment structural representation of the Large Copacity Mume flower contact for switching device of the present utility model, the outer surface of multiple conductive contact finger 132 has fixing spring groove 1321 ', and it is interior and be fixed on uniformly on support 134 by conductive contact finger 132 that fixing spring 131 ' is arranged on fixing spring groove 1321 '.The structure of other parts, especially the structure of conductive contact finger spring 133 and assembling, consistent with aforementioned most preferred embodiment, no longer repeats at this.
To sum up analyze, contrast Mume flower contact of the prior art, Large Copacity Mume flower contact of the present utility model, all achieve two in the junction of key and contact circle reliably, thus be different from a contact circle of existing design, significantly improve the capacity parameter of Mume flower contact.
According to this most preferred embodiment of the present utility model, rated current 3150A and specified short time withstand current 50kA/4s can be realized.
Although disclose preferred embodiment of the present utility model and accompanying drawing for the purpose of illustration, person skilled in the art, in the spirit and scope not departing from the utility model and appended claim, various replacement, change and retouching can be done.Therefore, the utility model should not be limited to the content disclosed in preferred embodiment and accompanying drawing, and the scope that protection range of the present utility model defines with appending claims is as the criterion.
Claims (9)
1. a Large Copacity Mume flower contact, comprise multiple conductive contact finger (132) and support (134), described multiple conductive contact finger (132) is mounted on support (134), it is applicable to after Large Copacity Mume flower contact is connected with fixed contact (14), and described multiple conductive contact finger (132) forms stable electrical with fixed contact (14) and is connected; It is characterized in that:
Also comprise conductive contact finger spring (133); The inner surface of described multiple conductive contact finger (132) has conductive contact finger spring groove (1322), for being fixed by conductive contact finger spring (133); Described conductive contact finger spring (133) is applicable to, after Large Copacity Mume flower contact is connected with fixed contact (14), forms stable electrical be connected with fixed contact (14).
2. Large Copacity Mume flower contact according to claim 1, it is characterized in that: the outer surface of described multiple conductive contact finger (132) has fixing spring groove (1321), described multiple conductive contact finger (132) is fixed on support (134) by the fixing spring (131) be arranged in fixing spring groove (1321).
3. Large Copacity Mume flower contact according to claim 1, it is characterized in that: the outer surface of described multiple conductive contact finger (132) has fixation spring tab groove (1321 '), described multiple conductive contact finger (132) is fixed on support (134) by the fixation spring tab (131 ') be arranged in fixation spring tab groove (1321 ').
4. the Large Copacity Mume flower contact according to claim 1-3 any one, is characterized in that: described fixing spring groove (1321) comprises two.
5. the Large Copacity Mume flower contact according to claim 1-3 any one, is characterized in that: described fixing spring comprises two.
6. the Large Copacity Mume flower contact according to claim 1-3 any one, is characterized in that: conductive contact finger spring groove (1322) comprises two.
7. the Large Copacity Mume flower contact according to claim 1-3 any one, is characterized in that: conductive contact finger spring (133) comprises two.
8. the Large Copacity Mume flower contact according to claim 1-3 any one, is characterized in that: described multiple conductive contact finger (132) has contact (1323,1324), described contact (1323.1324) are silver-plated.
9., for an electrical contact system for switching device, comprise fixed contact (14) conducting copper (15); It is characterized in that: also comprise the Large Copacity Mume flower contact (13) as described in claim 1-7 any one, for realizing reliable contacts with fixed contact (14), thus realizing the connection of primary conductive loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364445.8U CN204720327U (en) | 2015-05-29 | 2015-05-29 | Large Copacity Mume flower contact and the electrical contact system for switching device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364445.8U CN204720327U (en) | 2015-05-29 | 2015-05-29 | Large Copacity Mume flower contact and the electrical contact system for switching device |
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| CN204720327U true CN204720327U (en) | 2015-10-21 |
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| CN201520364445.8U Active CN204720327U (en) | 2015-05-29 | 2015-05-29 | Large Copacity Mume flower contact and the electrical contact system for switching device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293438A (en) * | 2016-04-12 | 2017-10-24 | 闫淼江 | The contact assembly and its negative contact of a kind of high voltage isolator |
| CN107680869A (en) * | 2017-09-13 | 2018-02-09 | 陕西杉瑞电气有限公司 | Novel contact and its high-tension apparatus for gas-insulated high-voltage system |
| CN109870093A (en) * | 2017-12-01 | 2019-06-11 | Abb瑞士股份有限公司 | For measuring the device of the occlusion depth of dynamic/static contact |
| CN111799122A (en) * | 2019-04-08 | 2020-10-20 | 河南平芝高压开关有限公司 | Isolating switch and static contact component thereof |
-
2015
- 2015-05-29 CN CN201520364445.8U patent/CN204720327U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293438A (en) * | 2016-04-12 | 2017-10-24 | 闫淼江 | The contact assembly and its negative contact of a kind of high voltage isolator |
| CN107293438B (en) * | 2016-04-12 | 2019-09-06 | 闫淼江 | A kind of contact assembly and its negative contact of high voltage isolator |
| CN107680869A (en) * | 2017-09-13 | 2018-02-09 | 陕西杉瑞电气有限公司 | Novel contact and its high-tension apparatus for gas-insulated high-voltage system |
| CN109870093A (en) * | 2017-12-01 | 2019-06-11 | Abb瑞士股份有限公司 | For measuring the device of the occlusion depth of dynamic/static contact |
| CN111799122A (en) * | 2019-04-08 | 2020-10-20 | 河南平芝高压开关有限公司 | Isolating switch and static contact component thereof |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20180530 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Zurich Patentee before: ABB T & D Technology Ltd. |