CN204537874U - Fixed contact - Google Patents
Fixed contact Download PDFInfo
- Publication number
- CN204537874U CN204537874U CN201520123612.XU CN201520123612U CN204537874U CN 204537874 U CN204537874 U CN 204537874U CN 201520123612 U CN201520123612 U CN 201520123612U CN 204537874 U CN204537874 U CN 204537874U
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- CN
- China
- Prior art keywords
- face
- fixed contact
- matrix
- feeler lever
- boss
- 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
The utility model discloses a kind of fixed contact, its drip irrigation device is a kind of fixed contact, comprise the matrix of rectangular setting and the feeler lever of cylindrical setting, described matrix comprises front end face, rear end face, upper surface, lower surface, left side and right side, described feeler lever is arranged on described front end face, described rear end face is provided with boss, and described front end face is that the circular arc fitted with bucket inwall is arranged.The utility model solves fixed contact and is connected to a barrel inwall instability, makes the problem that shunting switch breaks down.
Description
Technical field
The utility model relates to a kind of oil immersed type on load tap changer, and in particular, it relates to a kind of fixed contact.
Background technology
At present, the on load tap changer major part run in China 6 ~ 35kV electric power system is oil blast on load tap changer.According to relevant data analysis, 1/2 of operation of power networks transformer total failare is on load tap changer fault, has badly influenced the normal operation of electrical network.So, effectively reduce shunting switch fault and just become China's power department urgent problem.
Wherein, the general moving contact of shunting switch and fixed contact, fixed contact is located on immersion oil bucket bucket wall, fixed contact generally comprises the matrix of rectangle and columniform feeler lever, matrix is positioned at bucket, and feeler lever is then positioned at outside bucket, and feeler lever one end is by being welded to connect on an end face of matrix.Present definition, end face matrix being connected with feeler lever is front end face, is rear end face relative to the side of front end face, and what be positioned at front/rear end both sides is upper surface, lower surface and left side, right side.Rear end face is provided with boss, the switch that general moving contact can carry out to establishing realizing circuit with boss.When determining contact and being fixed on barrel wall, front end face and bucket inwall to establishing, because immersion oil bucket is generally cylindrical, and front end face arranges in planar shaped, so at front end face in being located at barrel inwall, both are linear contact lay, and namely two limits of front end face are respectively to being located at a barrel inwall.So this just causes fixed contact be connected to a barrel inwall instability, shunting switch is broken down.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model be to provide a kind of can with the fixed contact of bucket inwall stable connection.
For achieving the above object, the utility model provides following technical scheme: a kind of fixed contact, comprise the matrix of rectangular setting and the feeler lever of cylindrical setting, described matrix comprises front end face, rear end face, upper surface, lower surface, left side and right side, described feeler lever is arranged on described front end face, described rear end face is provided with boss, and described front end face is that the circular arc fitted with bucket inwall is arranged.
Preferably, described front end face is provided with anti-skidding lines.
Preferably, the diameter of described feeler lever is greater than the distance between upper surface and lower surface, and is less than the distance between left side and right side.
Preferably, the junction of described rear end face and described boss is provided with rounding.
Preferably, described left side and right side are all in trapezoidal setting, and trapezoidal upper bottom surface is positioned at the outside of bottom surface.
Preferably, described left side and right side are all inclined to set with trapezoidal upper bottom surface or bottom surface near one end of front end face.
Preferably, described matrix, boss and described feeler lever are all one-body molded.
The utility model has following advantage: arranged by the circular arc arranging front end face in fitting with bucket inwall, forming surface between fixed contact with bucket inwall is contacted, so make to fit between fixed contact and bucket inwall more stable.Secondly, front end face is also provided with anti-skidding lines, so make the frictional force between front end face and bucket inwall increase, and then make to fit between fixed contact and bucket inwall more stable.In addition, the junction of matrix and described boss is provided with rounding, and what make between boss and matrix is excessively rounder and more smooth, avoids the place that matrix is connected with boss and cracks.The left and right end face of matrix is arranged in trapezoidal, can adapt to the connection of other structures in bucket, make the connection of fixed contact in bucket more stable.Moreover matrix, boss and described feeler lever are all one-body molded, are welded to connect compared to original, this structure be wholely set not only manufactures simply, reduces production cost, and substantially increases the conductance of this fixed contact.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model fixed contact;
Fig. 2 is the end view of the utility model fixed contact;
Fig. 3 is the axonometric drawing one of the utility model fixed contact;
Fig. 4 is the axonometric drawing two of the utility model fixed contact.
In figure: 1. matrix; 11. front end faces; 111. anti-skidding lines; 12. rear end faces; 121. rounding; 13. left sides; 14. right sides; 15. upper surfaces; 16. lower surfaces; 2. feeler lever; 3. boss.
Embodiment
With reference to shown in accompanying drawing, the utility model is further illustrated.
Embodiment: a kind of fixed contact, comprise the matrix 1 of rectangular setting and the feeler lever 2 of cylindrical setting, feeler lever 2 is provided with screw thread, matrix 1 comprises front end face 11, rear end face 12, upper surface 15, lower surface 16, left side 13 and right side 14, feeler lever 2 is arranged on front end face 11, rear end face 12 is provided with boss 3, and front end face 11 is that the circular arc fitted with bucket inwall is arranged.Wherein, front end face 11 is provided with anti-skidding lines 111.Arranged by circular arc front end face 11 arranged in fitting with bucket inwall, forming surface between fixed contact with bucket inwall contacted, so make to fit between fixed contact and bucket inwall more stable.In addition, the rear end face 12 of matrix 1 also can curvedly be arranged, and makes the structural strength of matrix 1 better.Secondly, front end face 11 is also provided with anti-skidding lines 111, so make the frictional force between front end face 11 and bucket inwall increase, and then make to fit between fixed contact and bucket inwall more stable.This anti-skidding lines can be the lines of bar shaped or the lines etc. of netted lines or button type.
Secondly, the diameter of feeler lever 2 is greater than the distance between upper surface 15 and lower surface 16, and is less than the distance between left side 13 and right side 14.Make feeler lever 2 stretch out outside upper and lower end face 16, effectively can increase the bonding strength of feeler lever 2 and matrix 1.
In addition, rear end face 12 is provided with rounding 121 with the junction of boss 3, and what make between boss 3 and matrix 1 is excessively rounder and more smooth, avoids the place that matrix 1 is connected with boss 3 and cracks.
Moreover the left and right end face 14 of matrix 1 arranges in trapezoidal, trapezoidally comprise upper bottom surface and bottom surface, the surface area of upper bottom surface is greater than the surface area of bottom surface, and in the present embodiment, trapezoidal upper bottom surface is positioned at the outside of bottom surface; In addition, centroclinal near one end of front end face 11 all to matrix 1 of left side 13 and right side 14, is inclined to set with trapezoidal upper bottom surface or bottom surface.The connection that can adapt to other structures in bucket is more than set, makes the connection of fixed contact in bucket more stable.
In fixed contact of the present utility model, matrix 1, boss 3 are all one-body molded with feeler lever 2, and be welded to connect compared to original, this structure be wholely set not only manufactures simply, reduces production cost, and substantially increases the conductance of this fixed contact.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged 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, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. a fixed contact, comprise the matrix of rectangular setting and the feeler lever of cylindrical setting, described matrix comprises front end face, rear end face, upper surface, lower surface, left side and right side, described feeler lever is arranged on described front end face, described rear end face is provided with boss, it is characterized in that: described front end face is that the circular arc fitted with bucket inwall is arranged.
2. fixed contact according to claim 1, is characterized in that: described front end face is provided with anti-skidding lines.
3. fixed contact according to claim 1, is characterized in that: the diameter of described feeler lever is greater than the distance between upper surface and lower surface, and is less than the distance between left side and right side.
4. fixed contact according to claim 1, is characterized in that: the junction of described rear end face and described boss is provided with rounding.
5. fixed contact according to claim 1, is characterized in that: described left side and right side are all in trapezoidal setting, and trapezoidal upper bottom surface is positioned at the outside of bottom surface.
6. fixed contact according to claim 5, is characterized in that: described left side and right side are all inclined to set with trapezoidal upper bottom surface or bottom surface near one end of front end face.
7. fixed contact as claimed in any of claims 1 to 6, is characterized in that: described matrix, boss and described feeler lever are all one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520123612.XU CN204537874U (en) | 2015-03-03 | 2015-03-03 | Fixed contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520123612.XU CN204537874U (en) | 2015-03-03 | 2015-03-03 | Fixed contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204537874U true CN204537874U (en) | 2015-08-05 |
Family
ID=53751846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520123612.XU Expired - Fee Related CN204537874U (en) | 2015-03-03 | 2015-03-03 | Fixed contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204537874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128805A (en) * | 2016-08-22 | 2016-11-16 | 武汉泰普变压器开关有限公司 | A kind of overtravel static contact of shunting switch |
-
2015
- 2015-03-03 CN CN201520123612.XU patent/CN204537874U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128805A (en) * | 2016-08-22 | 2016-11-16 | 武汉泰普变压器开关有限公司 | A kind of overtravel static contact of shunting switch |
| CN106128805B (en) * | 2016-08-22 | 2018-11-23 | 武汉泰普变压器开关有限公司 | A kind of overtravel static contact of tap switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160303 |