CN201425882Y - On-load tap switch main contact structure with intermittent movement - Google Patents
On-load tap switch main contact structure with intermittent movement Download PDFInfo
- Publication number
- CN201425882Y CN201425882Y CN2009200761825U CN200920076182U CN201425882Y CN 201425882 Y CN201425882 Y CN 201425882Y CN 2009200761825 U CN2009200761825 U CN 2009200761825U CN 200920076182 U CN200920076182 U CN 200920076182U CN 201425882 Y CN201425882 Y CN 201425882Y
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- contact
- moving contact
- shift fork
- dial
- moving
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Abstract
An on-load tap switch main contact structure comprises a mounting flange, and a three-phase static contact group and a three-phase moving contact group which are uniformly arranged on the mounting flange, wherein each moving contact rotating shaft key is connected with a shift fork, and a switch main shaft drives a drive plate to rotate, during one changing process of driving the moving contact, under the drive and control of the drive plate and two rollers, the movement of the moving contact is an intermittent movement, i.e. separating from the static contact-being static-connecting with thestatic contact on the other side. The utility model has the advantages of reliable intermittent movement and zero error, the moving contact and the neutral point contact are in sliding contact, so theswitch is more reliable.
Description
Technical field:
The utility model relates to a kind of diverter switch part of on-load tap changers of transformers, the on load tap changer main contact structure of a kind of intermittent movement of program control that is used to switch.
Background technology;
The transition copper tungsten contact that substitutes in the former on load tap changer with vacuum bubbles is the new trend of on load tap changer technical development in recent years, can avoid of the pollution of the electric arc of copper tungsten contact generation to the switch grease chamber, reduce the maintenance of switch, prolong the service life of switch.
In the vacuum on-load operation switch that only switches with 2 vacuum bubbles transition, the moving contact part that plays main through-flow effect need realize separating---static---intermittent movement of connecting with the opposite side fixed contact with the fixed contact of former connection, to finish change action.In the vacuum on-load operation switch that only switches with 2 vacuum bubbles transition, the moving contact that plays main through-flow effect exists complex structure, the problem that the intermittent movement reliability is not high at present.Be exactly in the conventional art in addition, often adopt Copper Foil or braiding copper cash between moving contact and the neutral point contact, often cause getting loose of fractureing of being flexible coupling or bolt, cause switch failure by being flexible coupling that bolts at two ends compresses.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of on load tap changer main contact structure of intermittent movement, to solve the existing in prior technology problem.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of on load tap changer main contact structure of intermittent movement comprises:
Mounting flange;
The uniform three-phase fixed contact group that is installed on the mounting flange, each group fixed contact group comprises that the stationary contact headstock that is installed on the mounting flange and 2 fixed contacts that are installed on the stationary contact headstock, described 2 fixed contacts are respectively in the both sides and the mutually insulated isolation of described stationary contact headstock;
The uniform three-phase moving contact group that is installed on the mounting flange, each phase moving contact group is corresponding with a phase fixed contact group, each phase moving contact group comprises the moving contact rotating shaft that is installed on the mounting flange and is installed in moving contact in the moving contact rotating shaft that this moving contact comes back rotation with the back rotation of coming of moving contact rotating shaft; Described moving contact is the cast copper electric conductor, lower end and the sliding contact of described neutral point contact, and the upper end is provided with to the extended wing moving contact in both sides, and the wing moving contact of each side can be according to the fixed contact of program and homonymy deciliter;
Be connected and drive the shift fork of described moving contact rotating shaft rotation with each moving contact rotating shaft key, described shift fork branch both sides are provided with 2 allocating slots;
Be positioned at described mounting flange center and driven and come the dial of back rotation, described dial to be provided with three groups of roller set by switch spindle, each group roller set has 2 rollers, and 2 rollers form certain interval on same circumference;
In driving a handoff procedure of moving contact, under the drive of dial and two rollers and control, the action of moving contact is rendered as: separate with fixed contact and---staticly---connect so a kind of intermittent movement with the opposite side fixed contact.
The lower end of described moving contact is cylindric, and described neutral point contact is a fork configuration, and 2 yokes of fork configuration have certain elasticity, with the cylindric sliding contact of described moving contact lower end.
Be evenly equipped with three sections dial lock arcs on described dial, be provided with shift fork lock arc in the end of each shift fork, each section dial lock arc can be corresponding with the shift fork lock arc on the shift fork; When a period of time that shift fork mediates, described dial lock arc is locked arc with the shift fork on the described shift fork and is locked mutually;
Between adjacent two sections dials lock arc, leave and hold the dial lock arc breach that described shift fork swings in, be provided with 2 rollers in the position of each dial lock arc breach.
Described stationary contact headstock is an insulating material molding, and described fixed contact and neutral point contact branch are installed in up and down on this insulating material molding.
The utility model is provided with bistable spring mechanism in described moving contact inside, can guarantee that moving contact and fixed contact have the reliable of certain pressure and contact.
The utility model is so a kind of intermittent movement according to program to the requirement of main contact, and static is to get ready for the action of other switch; A wing moving contact on the moving contact is former to be contacted with a side fixed contact, the switch spindle (not shown) drives dial by spline and rotates counterclockwise, at this moment roller promotion shift fork clockwise rotates, driving moving contact by the moving contact rotating shaft rotates, a wing moving contact on the moving contact is separated with a side fixed contact, and dial lock arc and shift fork lock arc coincide, and shift fork stops operating, at this moment moving contact does not all contact with the both sides fixed contact, is in order to wait for finishing of other program during this period of time.Along with dial continues to rotate counterclockwise, shift fork lock arc progresses into dial lock arc breach, and roller enters fork slot, promotes shift fork and continues to clockwise rotate, and drives another wing moving contact of moving contact and contacts with the opposite side fixed contact.Stop operating under the control of other mechanism to this switch spindle, switch is finished a change action.When new switching signal arrival, the switch spindle counter-rotation, operating principle is same as described above, and direction is opposite.
It is reliable to the utlity model has intermittent movement, free from error advantage.Moving contact and the sliding contact of neutral point contact make switch more reliable.
Description of drawings:
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing.
Fig. 1 is that first wing moving contact of movable contact of the present utility model contacts diagrammatic top view with a fixed contact.
Fig. 2 is the moving contact of the present utility model halted state schematic diagram that mediates.
Fig. 3 is that another wing moving contact of moving contact of the present utility model contacts diagrammatic top view with another fixed contact.
Fig. 4 moving contact of the present utility model and fixed contact mounting structure schematic diagram.
Fig. 5 moving contact structure schematic diagram of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 and Fig. 4, a kind of on load tap changer main contact structure of intermittent movement comprises upper and lower mounting flange 100 (it is not shown to go up mounting flange), has the hole at following mounting flange 100 centers, in order to dial 200 to be installed.Between three-phase fixed contact group and installation of three-phase moving contact group circumference uniform distribution ground and the upper and lower flange 100, each group fixed contact group comprises by stationary contact headstock 310 and 2 fixed contacts 320,330, stationary contact headstock 310 is an insulating material molding, 2 fixed contacts 320,330 and neutral point contact were installed in up and down on this insulating material molding in 400 minutes, and 2 fixed contacts 320,330 are installed the both sides and the mutually insulated that are respectively in stationary contact headstock 310 and isolated simultaneously.
Each phase moving contact group is corresponding with a phase fixed contact group, each phase moving contact group comprises moving contact rotating shaft 510 that is installed on the mounting flange 100 and the moving contact 520 that is installed in the moving contact rotating shaft 510, and this moving contact 520 comes back rotation with the back rotation of coming of moving contact rotating shaft 510.
Referring to Fig. 5, moving contact 520 is the cast copper electric conductor, the lower end is cylindric 521, neutral point contact 400 is a fork configuration, 2 yokes of fork configuration have certain elasticity, with cylindric 521 sliding contacts of moving contact 520 lower ends, have solved and have often adopted Copper Foil or braiding copper cash by being flexible coupling that bolts at two ends compresses in the conventional art between the moving contact and neutral point contact, often cause getting loose of fractureing of being flexible coupling or bolt, cause the problem of switch failure.
Moving contact 520 upper ends are provided with to the extended wing moving contact 522,523 in both sides, and the wing moving contact 522,523 of each side can be according to the fixed contact of program and homonymy 320,330 deciliters.
Be provided with bistable spring mechanism (not shown) in moving contact 520 inside, can guarantee that like this wing moving contact 522,523 on the moving contact 510 has the reliable of certain pressure with 2 fixed contacts 320,330 and contacts.
Be connected with a shift fork 600 at the bottom of moving contact rotating shaft 510 key, shift fork 600 drives moving contact rotating shaft 510 and rotates.Be provided with 2 allocating slots 610,620 in 600 fens both sides of shift fork, the end is provided with shift fork lock arc 630.
Wing moving contact 522 on the moving contact 520 is former to be contacted with fixed contact 320, switch spindle drives dial 200 by spline and rotates counterclockwise, roller 230 promotes shift fork 600 and clockwise rotates, driving wing moving contact 522 separates with fixed contact 320, dial lock arc 210 and shift fork lock arc 610 identical (see figure 2)s, shift fork 600 stops operating in the centre position, at this moment the wing moving contact 522,523 of moving contact 520 does not all contact with both sides fixed contact 320,330, is in order to wait for finishing of other program during this period of time.Along with dial 200 continues to rotate counterclockwise, shift fork lock arc 610 progresses into dial lock arc breach 220, and roller 240 enters allocating slot 610, promotes shift fork 600 and continues to clockwise rotate, and another wing moving contact 523 that drives on the moving contact 520 contacts with fixed contact 330.Moving contact 520 inside are provided with bistable spring mechanism, can guarantee that moving contact and fixed contact have the reliable of certain pressure and contact as shown in Figure 3.Stop operating under the control of other mechanism to this switch spindle, switch is finished a change action.When new switching signal arrival, the switch spindle counter-rotation, operating principle is same as described above, and direction is opposite, and moving contact switches to fixed contact 12 by fixed contact 13 again.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. the on load tap changer main contact structure of an intermittent movement is characterized in that, comprising:
Mounting flange;
The uniform three-phase fixed contact group that is installed on the mounting flange, each group fixed contact group comprises that the stationary contact headstock that is installed on the mounting flange and 2 fixed contacts that are installed on the stationary contact headstock, described 2 fixed contacts are respectively in the both sides and the mutually insulated isolation of described stationary contact headstock;
The uniform three-phase moving contact group that is installed on the mounting flange, each phase moving contact group is corresponding with a phase fixed contact group, each phase moving contact group comprises the moving contact rotating shaft that is installed on the mounting flange and is installed in moving contact in the moving contact rotating shaft that this moving contact comes back rotation with the back rotation of coming of moving contact rotating shaft; Described moving contact is the cast copper electric conductor, lower end and the sliding contact of described neutral point contact, and the upper end is provided with to the extended wing moving contact in both sides, and the wing moving contact of each side can be according to the fixed contact of program and homonymy deciliter;
Be connected and drive the shift fork of described moving contact rotating shaft rotation with each moving contact rotating shaft key, described shift fork branch both sides are provided with 2 allocating slots;
Be positioned at described mounting flange center and driven and come the dial of back rotation, described dial to be provided with three groups of roller set by switch spindle, each group roller set has 2 rollers, and 2 rollers form certain interval on same circumference;
In driving a handoff procedure of moving contact, under the drive of dial and two rollers and control, the action of moving contact is rendered as: separate with fixed contact and---staticly---connect so a kind of intermittent movement with the opposite side fixed contact.
2. on load tap changer main contact structure as claimed in claim 1, it is characterized in that the lower end of described moving contact is cylindric, described neutral point contact is a fork configuration, 2 yokes of fork configuration have certain elasticity, with the cylindric sliding contact of described moving contact lower end.
3. on load tap changer main contact structure as claimed in claim 1 is characterized in that, is evenly equipped with three sections dial lock arcs on described dial, is provided with shift fork lock arc in the end of each shift fork, and each section dial lock arc can be corresponding with the shift fork lock arc on the shift fork; When a period of time that shift fork mediates, described dial lock arc is locked arc with the shift fork on the described shift fork and is locked mutually;
4. on load tap changer main contact structure as claimed in claim 3 is characterized in that, leaves between adjacent two sections dials lock arc and holds the dial lock arc breach that described shift fork swings in, and is provided with 2 rollers in the position of each dial lock arc breach.
5. on load tap changer main contact structure as claimed in claim 1 is characterized in that, described stationary contact headstock is an insulating material molding, and described fixed contact and neutral point contact branch are installed in up and down on this insulating material molding.
6. on load tap changer main contact structure as claimed in claim 1 is characterized in that, is provided with bistable spring mechanism in described moving contact inside, can guarantee that moving contact and fixed contact have the reliable of certain pressure and contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200761825U CN201425882Y (en) | 2009-06-12 | 2009-06-12 | On-load tap switch main contact structure with intermittent movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200761825U CN201425882Y (en) | 2009-06-12 | 2009-06-12 | On-load tap switch main contact structure with intermittent movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425882Y true CN201425882Y (en) | 2010-03-17 |
Family
ID=42025337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200761825U Expired - Lifetime CN201425882Y (en) | 2009-06-12 | 2009-06-12 | On-load tap switch main contact structure with intermittent movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425882Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192771A (en) * | 2019-12-31 | 2020-05-22 | 武汉泰普变压器开关有限公司 | Non-excitation tapping switch with wedge-shaped contact structure |
| CN112201532A (en) * | 2020-08-26 | 2021-01-08 | 广东中鹏电气有限公司 | On-load tap-changer control device |
| CN113745014A (en) * | 2021-07-27 | 2021-12-03 | 中国电力科学研究院有限公司 | Reciprocating switching mechanism of on-load tap-changer |
-
2009
- 2009-06-12 CN CN2009200761825U patent/CN201425882Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192771A (en) * | 2019-12-31 | 2020-05-22 | 武汉泰普变压器开关有限公司 | Non-excitation tapping switch with wedge-shaped contact structure |
| CN111192771B (en) * | 2019-12-31 | 2022-03-01 | 武汉泰普变压器开关有限公司 | Non-excitation tapping switch with wedge-shaped contact structure |
| CN112201532A (en) * | 2020-08-26 | 2021-01-08 | 广东中鹏电气有限公司 | On-load tap-changer control device |
| CN112201532B (en) * | 2020-08-26 | 2023-01-24 | 广东电网有限责任公司佛山供电局 | On-load tap-changer control device |
| CN113745014A (en) * | 2021-07-27 | 2021-12-03 | 中国电力科学研究院有限公司 | Reciprocating switching mechanism of on-load tap-changer |
| CN113745014B (en) * | 2021-07-27 | 2022-10-04 | 中国电力科学研究院有限公司 | On-load tap-changer's reciprocating type switching mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HUAMING HIGH-VOLTAGE SWITCHGEAR CO., LTD. Free format text: FORMER OWNER: SHANGHAI HUAMING HIGH-VOLTAGE SWITCHGEAR CO., LTD. SHANGHAI HUAMING POWER EQUIPMENT GROUP CO., LTD. Effective date: 20150115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200333 Shanghai city Putuo District No. 977 in the same way Patentee after: SHANGHAI HUAMING POWER EQUIPMENT Co.,Ltd. Patentee after: SHANGHAI HUAMING HIGH-VOLTAGE SWITCHGEAR Co.,Ltd. Patentee after: SHANGHAI HUAMING POWER EQUIPMENT GROUP Co.,Ltd. Address before: 200333 Shanghai city Putuo District No. 977 in the same way Patentee before: SHANGHAI HUAMING POWER EQUIPMENT Co.,Ltd. Patentee before: SHANGHAI HUAMING HIGH-VOLTAGE SWITCHGEAR Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150115 Address after: 200333 Shanghai city Putuo District No. 977 in the same way Patentee after: SHANGHAI HUAMING POWER EQUIPMENT Co.,Ltd. Patentee after: SHANGHAI HUAMING HIGH-VOLTAGE SWITCHGEAR Co.,Ltd. Address before: 200333 Shanghai city Putuo District No. 977 in the same way Patentee before: SHANGHAI HUAMING POWER EQUIPMENT Co.,Ltd. Patentee before: SHANGHAI HUAMING HIGH-VOLTAGE SWITCHGEAR Co.,Ltd. Patentee before: SHANGHAI HUAMING POWER EQUIPMENT GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100317 |