CN105938765A - Fixed contact structure of bar-type off-circuit tap-changer - Google Patents
Fixed contact structure of bar-type off-circuit tap-changer Download PDFInfo
- Publication number
- CN105938765A CN105938765A CN201610459855.XA CN201610459855A CN105938765A CN 105938765 A CN105938765 A CN 105938765A CN 201610459855 A CN201610459855 A CN 201610459855A CN 105938765 A CN105938765 A CN 105938765A
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- CN
- China
- Prior art keywords
- moving contact
- static contact
- contact
- strip
- static
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0016—Contact arrangements for tap changers
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a fixed contact structure of a bar-type off-circuit tap-changer. The fixed contact structure comprises an insulating rod and a support rack, wherein the support rack is provided with an operation positioning device; the insulating rod is provided with fixed contacts along the length direction at intervals; each phase of fixed contact is provided with a moving contact assembly; a moving contact in each moving contact assembly is bridged between each phase of adjacent fixed contacts; each fixed contact comprises a columnar fixed contact body and a columnar wiring terminal; each fixed contact body and the corresponding moving contact arranged in a matching manner; the outer end of each fixed contact body is bent downwards to form the wiring terminal; and each moving contact assembly comprises a moving contact bracket and a moving contact arranged in the moving contact bracket. After each wiring terminal is bent downwards, connection with a lead which is from the lower part of the tap-changer is facilitated; and the lead is bent into a curved form, is connected with the fixed contact, and is not arranged in a manner of bending at 90 degrees, so that the bending radius of the lead is reduced; the space in a transformer occupied by the tap-changer is reduced; and the lead is more beautiful in wire arrangement and is not easy to break.
Description
Technical field
The present invention relates to the static contact structure of a kind of strip-like non-excitation tapping switch.
Background technology
Disclosing a kind of strip-like non-excitation tapping switch in Chinese patent CN201130595Y, its contact part is by moving contact
Composition first-class with stationary contact, wherein moving contact is intermediate plate shape, and static contact is bar shaped column, and upper and lower two panels moving contact passes through spring compression
Being connected across on static contact, during switch gear shift, upper and lower two panels moving contact slides on static contact.Owing to static contact is bar shaped column knot
Structure, going between from transformer coil, out rear connection with the static contact of shunting switch must bending 90 degree, the most not only wiring not side
Just, easily making fracture, and wire length is long, the space making inside transformer shared by shunting switch is bigger, thus
Increasing transformer manufacturing cost, lead-in wire arrangement simultaneously is the most attractive in appearance.
Summary of the invention
The technical problem to be solved is that the not enough offer one existed for above-mentioned prior art can reduce lead-in wire bending
Radius, saves the static contact structure of the strip-like non-excitation tapping switch of installing space.
The technical solution adopted in the present invention is: the static contact structure of a kind of strip-like non-excitation tapping switch, including insulating bar and support
Frame, described support is installed operation positioner, and on insulating bar, interval is installed on static contact, every phase stationary contact along its length
Head is configured with a moving contact component, and the moving contact in moving contact component is connected across between mutually the most adjacent static contact, and its feature exists
In: described static contact includes column static contact body and column binding post, described static contact body and moving contact phase configuration, institute
The outer end stating static contact body is bent to form downwards binding post, and described moving contact component includes moving contact rack and is installed in dynamic touching
Moving contact in head bracket.
By technique scheme, in binding post, it is provided with cold weld string holes.
By technique scheme, described static contact be hollow barred body or solid barred body offer wiring hole after bend and form.
By technique scheme, static contact is provided with position-limit mechanism and insulating bar phase configuration, for realize the anti-rotation of static contact with
Axially location.
By technique scheme, described position-limit mechanism is included in the spacing preiection of the periphery setting of static contact body and the curved of static contact
Trisection, the bending segment of described spacing preiection and static contact is respectively provided at the both sides of insulating bar.
By technique scheme, described moving contact is roller moving contact or clip type moving contact.
By technique scheme, described clip type moving contact includes upper and lower two panels moving contact, described moving contact by spring compression across
Being connected between mutually the most adjacent static contact, described spring housing is contained in outside spring guide piece, and described spring guide piece is fixed on moving contact
In support, described spring guide piece is plastic material.
By technique scheme, described moving contact is U-shaped, installs two springs and two springs in each U-shaped moving contact
Guide, described spring guide piece is positioning boss or location dimples.
By technique scheme, on moving contact rack, two floating ends of corresponding U-shaped moving contact are equipped with limited block, for right
U-shaped moving contact spacing.
By technique scheme, described static contact body is flat column.
Having the beneficial effect that acquired by the present invention
1, in the present invention, the binding post of static contact is more beneficial for after bending downwards being connected with the lead-in wire come below shunting switch,
Make lead-in wire bending curvilinear be connected with static contact, rather than bend setting in 90 degree, not only make lead-in wire bending radius reduce, contract
Little shunting switch takies the space of inside transformer, and the winding displacement that goes between is more attractive and not easy fracture；
2, the present invention replaces existing metal spring bearing pin by spring guide piece, be conducive to improving electric field, in making transformator
Electric field environment more preferable, further increase the reliability of shunting switch, the most beneficially volume of transformer and reduce；
3, the present invention is by arranging limited block, prevents moving contact from rotating in moving contact rack, can only be with the shifting of moving contact rack
Moving and move, the structure making the present invention is compacter, stable；
Accompanying drawing explanation
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the B-B sectional view in the present invention in Fig. 1 of a kind of embodiment.
Fig. 3 is the B-B sectional view in the present invention in Fig. 1 of another embodiment.
Fig. 4 is the C-C sectional view of Fig. 3.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1-2, a kind of strip-like non-excitation tapping switch is present embodiments provided, including insulating bar 5 and support 2, institute
Stating and install operation positioner 1 on support 2, operation positioner lower end arranges driving gear 3, sets above described insulating bar 5
Being equipped with tooth bar movable stand, the tooth bar 4 of tooth bar movable stand is meshed with the gear of operation positioner 1, makes tooth bar movable stand energy edge
Insulating bar length direction moves back and forth；On insulating bar 5, interval is installed on static contact 7, every phase static contact 7 along its length
Being configured with a moving contact component, moving contact component is connected with tooth bar movable stand 10, and described moving contact component includes that moving contact props up
Frame 6 and the moving contact 8 being installed in moving contact rack 6, described static contact 7 includes that column static contact body 12 and column connect
Line terminals 10, described static contact body 12 and moving contact 8 phase configuration, the outer end of described static contact body 12 bends downwards
(to lead-in wire direction bending certain angle) formed binding post 10, in binding post, be provided with cold weld string holes 10, for
Lead-in wire crimps mutually.Static contact 7 matches with the hole of insulating bar 5, in case spline is moved.
In the present embodiment, static contact is provided with position-limit mechanism and insulating bar phase configuration, for realizing the location of static contact, described
Position-limit mechanism is included in spacing preiection 13 and the bending segment of static contact of the periphery setting of static contact body, is installing static contact
Time, first hollow barred body or the solid barred body of bar shaped are installed on insulating bar so that it is outer end is stretched out outside insulating bar, by limit convex
Play and 13 abut against with the inner side of insulating bar (during general riveting direct forming spacing and tight fit), the most again by curved for the outer end of barred body
Folding forms binding post, thus realizes the preferably location of static contact with spacing.
In the present embodiment, described moving contact can be roller moving contact, it is also possible to for clip type moving contact.Wherein, roller
Moving contact can use existing roller moving contact.When using existing clip type moving contact, moving contact passes through spring metal pin
Shaft compression is connected across static contact, owing to metal bearing pin easily affects the electric field of shunting switch, therefore, is also directed in the present embodiment
The structure of existing clip type moving contact is improved the most accordingly, and as described in Fig. 3-4, described clip type moving contact includes up and down
The U-shaped moving contact of two panels, described moving contact is connected across between mutually the most adjacent static contact by spring compression, and described spring is set with
Outside spring guide piece, described spring guide piece 14 is fixed in moving contact rack, and it is plastic material, with moving contact rack
One-body molded, it is protruding column shape, it is also possible to for location dimples, depending on actual demand.Each U-shaped dynamic
Install two springs and two spring guide pieces in contact, make contact surface evenly, contact performance more preferable.Wherein, at moving contact
On support, two floating ends of corresponding U-shaped moving contact are equipped with limited block 15, make contact cavities 16 in matrix shape, are used for U-shaped
Moving contact spacing, makes moving contact can not rotate inside contact cavities, can only move with moving contact rack, make the structure of the present invention
Compacter, stable.Static contact body in the present embodiment can also be flat column, and such structure is more beneficial for reducing and moves
The overtravel of contact, thus reduce switching manipulation moment.
The present invention is more suitable for the strip-shape tap switch of electric current≤63A.
Claims (10)
1. a static contact structure for strip-like non-excitation tapping switch, including insulating bar and support, operation is installed by described support
Positioner, on insulating bar, interval is installed on static contact along its length, and every phase static contact is configured with a moving contact group
Part, the moving contact in moving contact component is connected across between mutually the most adjacent static contact, it is characterised in that: described static contact includes post
Shape static contact body and cylindric binding post, described static contact body and moving contact phase configuration, the outer end of described static contact body
It is bent to form downwards binding post.
The static contact structure of a kind of strip-like non-excitation tapping switch the most according to claim 1, it is characterised in that: connecing
Cold weld string holes it is provided with in line terminals.
The static contact structure of a kind of strip-like non-excitation tapping switch the most according to claim 1 and 2, it is characterised in that:
Described static contact be hollow barred body or solid barred body offer wiring hole after bend and form.
The static contact structure of a kind of strip-like non-excitation tapping switch the most according to claim 1 and 2, it is characterised in that:
Static contact is provided with position-limit mechanism and insulating bar phase configuration, for realizing anti-rotation and the axially location of static contact.
The static contact structure of a kind of strip-like non-excitation tapping switch the most according to claim 1 and 2, it is characterised in that:
Described position-limit mechanism be included in static contact body periphery arrange spacing preiection and the bending segment of static contact, described spacing preiection and
The bending segment of static contact is folded in the both sides of insulating bar respectively.
The static contact structure of a kind of strip-like non-excitation tapping switch the most according to claim 1 and 2, it is characterised in that:
Described moving contact component includes moving contact rack and the moving contact being installed in moving contact rack, and described moving contact is that roller is dynamic to be touched
Head or clip type moving contact.
The static contact structure of a kind of strip-like non-excitation tapping switch the most according to claim 6, it is characterised in that:, described
Clip type moving contact includes upper and lower two panels moving contact, described moving contact by spring compression be connected across often mutually the most adjacent static contact it
Between, described spring housing is contained in outside the spring guide piece of plastic material, and described spring guide piece is fixed in moving contact rack.
A kind of strip-like non-excitation tapping switch the most according to claim 7, it is characterised in that: described moving contact is U
Type, installs two springs and two spring guide pieces in each U-shaped moving contact, described spring guide piece be positioning boss or
Location dimples.
A kind of strip-like non-excitation tapping switch the most according to claim 7, it is characterised in that: right on moving contact rack
Two floating ends of U-shaped moving contact should be equipped with limited block, spacing for U-shaped moving contact.
A kind of strip-like non-excitation tapping switch the most according to claim 7, it is characterised in that: described static contact body is
Flat column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459855.XA CN105938765A (en) | 2016-06-22 | 2016-06-22 | Fixed contact structure of bar-type off-circuit tap-changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459855.XA CN105938765A (en) | 2016-06-22 | 2016-06-22 | Fixed contact structure of bar-type off-circuit tap-changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105938765A true CN105938765A (en) | 2016-09-14 |
Family
ID=56872828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610459855.XA Pending CN105938765A (en) | 2016-06-22 | 2016-06-22 | Fixed contact structure of bar-type off-circuit tap-changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105938765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706011A (en) * | 2017-12-06 | 2018-02-16 | 宁波诗宏千禧贸易有限公司 | Shunting switch |
| CN109192564A (en) * | 2018-11-14 | 2019-01-11 | 山东电工电气集团智能电气有限公司 | Strip-like non-excitation tapping switch and transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000150263A (en) * | 1998-10-15 | 2000-05-30 | Maschinenfabrik Reinhausen Gmbh | Contact for load tap selector |
| CN2465289Y (en) * | 2001-02-19 | 2001-12-12 | 刘刚 | Excitation free disk shape tapping switch |
| CN102789911A (en) * | 2012-08-20 | 2012-11-21 | 武汉泰普变压器开关有限公司 | Excitation-free strip-type tapping switch |
| CN202650815U (en) * | 2012-06-08 | 2013-01-02 | 刘歆 | Non-excitation disc-shaped neutral point pressure-regulating tapping switch |
| KR101400038B1 (en) * | 2014-03-31 | 2014-05-30 | 박정준 | A tap changer for transformer |
-
2016
- 2016-06-22 CN CN201610459855.XA patent/CN105938765A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000150263A (en) * | 1998-10-15 | 2000-05-30 | Maschinenfabrik Reinhausen Gmbh | Contact for load tap selector |
| CN2465289Y (en) * | 2001-02-19 | 2001-12-12 | 刘刚 | Excitation free disk shape tapping switch |
| CN202650815U (en) * | 2012-06-08 | 2013-01-02 | 刘歆 | Non-excitation disc-shaped neutral point pressure-regulating tapping switch |
| CN102789911A (en) * | 2012-08-20 | 2012-11-21 | 武汉泰普变压器开关有限公司 | Excitation-free strip-type tapping switch |
| KR101400038B1 (en) * | 2014-03-31 | 2014-05-30 | 박정준 | A tap changer for transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706011A (en) * | 2017-12-06 | 2018-02-16 | 宁波诗宏千禧贸易有限公司 | Shunting switch |
| CN109192564A (en) * | 2018-11-14 | 2019-01-11 | 山东电工电气集团智能电气有限公司 | Strip-like non-excitation tapping switch and transformer |
| CN109192564B (en) * | 2018-11-14 | 2024-04-30 | 山东电工电气集团智能电气有限公司 | Strip-shaped non-excitation tapping switch and transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160914 |
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| RJ01 | Rejection of invention patent application after publication |