CN107359058A - Disconnecting switch dynamic/static contact structure in a kind of transformer - Google Patents
Disconnecting switch dynamic/static contact structure in a kind of transformer Download PDFInfo
- Publication number
- CN107359058A CN107359058A CN201710332717.XA CN201710332717A CN107359058A CN 107359058 A CN107359058 A CN 107359058A CN 201710332717 A CN201710332717 A CN 201710332717A CN 107359058 A CN107359058 A CN 107359058A
- Authority
- CN
- China
- Prior art keywords
- contact
- static contact
- shrinkage pool
- hole
- pedestal
- 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
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
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- Contacts (AREA)
Abstract
The invention discloses disconnecting switch dynamic/static contact structure in a kind of transformer, including disc fixed contact pedestal, fixed contact pedestal top surface is provided with the shrinkage pool of flattened conical shape, concentrically axis connection has insulating ceramics cylinder for fixed contact pedestal bottom, insulating ceramics cylinder upper surface is provided with multiple ventholes, each venthole connects with shrinkage pool inner bottom part respectively, insulating ceramics cylinder upper surface, which is located at center and forms to stretch into shrinkage pool, is down flat tip circle cone, discoidal static contact is provided with the top of fixed contact pedestal, static contact center is provided with the through hole of frustro-pyramidal, movable contact block bottom is provided with moving contact, moving contact shape matches with shape of through holes in static contact, moving contact is caught in the through hole of static contact, moving contact bottom surface is down flat the support of tip circle cone by insulating ceramics cylinder upper surface center.The present invention is not in the problem of caused electric arc is run helter-skelter, and has good arc-suppression function.
Description
Technical field
The present invention relates to field transformer, disconnecting switch dynamic/static contact structure in specifically a kind of transformer.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is armature winding, secondary
Level winding and iron core, wherein armature winding, the line end of secondary windings need to connect binding post, be connected by binding post and other equipment
Connect.The break-make of circuit between transformer and load is realized in transformer using disconnecting switch, and dynamic and static contact exists in disconnecting switch
Contact position is an exposure to outer during contact, electric arc when dynamic and static contact is mutually disengaged be present, and caused electric arc is easily altered
Enter in the conductor around dynamic and static contact position, cause inside transformer structural failure.
The content of the invention
It is an object of the invention to provide disconnecting switch dynamic/static contact structure in a kind of transformer, to solve prior art change
Dynamic and static contact position is exposed to outer the problem of existing in depressor.
In order to achieve the above object, the technical solution adopted in the present invention is：
Disconnecting switch dynamic/static contact structure in a kind of transformer, it is characterised in that：Including discoidal insulating materials system
Into fixed contact pedestal, fixed contact pedestal end face center position is down flat the shrinkage pool of tip circle taper to having, fixed contact pedestal bottom altogether in
Mandrel is connected with insulating ceramics cylinder, and insulating ceramics cylinder upper surface is stretched into fixed contact pedestal and extends to shrinkage pool bottom, insulating ceramics
Cylinder upper surface is distributed in the pericentral venthole in insulating ceramics cylinder upper surface, each venthole difference provided with multiple in spoke-like
Connected with shrinkage pool inner bottom part, insulating ceramics cylinder upper surface, which is located at center and also concentrically formed on axial direction, to be stretched into shrinkage pool
It is down flat tip circle cone, highly consistent, the concentrically axle at the top of the fixed contact pedestal of the height for being down flat tip circle cone and shrinkage pool
Provided with discoidal static contact, static contact center is provided with the through hole of frustro-pyramidal, its taper of the through hole at static contact center
It is consistent with shrinkage pool taper in fixed contact pedestal, and the through hole lower end diameter in static contact and shrinkage pool upper end diameter one in fixed contact pedestal
Cause；Also include movable contact block made of discoidal insulating materials, movable contact block bottom is provided with moving contact, the moving contact shape
Matched with shape of through holes in static contact, the moving contact is caught in the through hole of static contact, moving contact cone wall and static contact through hole
Hole wall is in close contact, and moving contact bottom surface is supported by the tip circle cone that is down flat of insulating ceramics cylinder upper surface center.
Disconnecting switch dynamic/static contact structure in a kind of described transformer, it is characterised in that：Insulating ceramics cylinder upper surface
The taper for being down flat tip circle cone of center is consistent with the taper of shrinkage pool.
Disconnecting switch dynamic/static contact structure in a kind of described transformer, it is characterised in that：The movable contact block it is straight
Footpath is more than the diameter of through hole upper end in static contact.
In the present invention, when dynamic and static contact, moving contact entire card enters in the through hole of static contact, and moving contact utilizes four
Week cone wall contact with static contact through hole hole wall realize turn on, the contact position of dynamic and static contact inside static contact through hole,
It is not to be exposed to outside, therefore when electric arc caused by the disconnection of dynamic and static contact is located at static contact through hole hole wall and moving contact cone
Between wall.
When dynamic and static contact is mutually disengaged, electric arc be present between moving contact cone wall and static contact through hole hole wall, now pass through
External air source is ventilated by insulating ceramics cylinder upper end venthole into static contact through hole, and the air-flow that each venthole sprays is due to exhausted
The guide functions for being down flat tip circle cone of edge ceramic cylinder upper surface center, in static contact through hole interior edge parallel to through hole hole wall
Direction outflow, electric arc can be blown, and increase with departing between moving contact and static contact, electric arc constantly attenuates, and makes air-flow
Phone can be effectively blown, plays good arc extinguishing effect.
The present invention will not be when dynamic and static contact be mutually disengaged, the problem of electric arc caused by appearance is run helter-skelter, and with good
Arc-suppression function.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is caught in structural representation when in static contact through hole for moving contact in the present invention.
Fig. 3 is venthole distribution schematic diagram of the present invention.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, disconnecting switch dynamic/static contact structure in a kind of transformer, including discoidal insulation
Fixed contact pedestal 1 made of material, the end face center position of fixed contact pedestal 1 is to having the shrinkage pool 2 that is down flat tip circle taper, fixed contact pedestal
Concentrically axis connection has insulating ceramics cylinder 3 for 1 bottom, and the upper surface of insulating ceramics cylinder 3 is stretched into fixed contact pedestal and extends to the bottom of shrinkage pool 2
Portion, the upper surface of insulating ceramics cylinder 3 are distributed in the pericentral venthole 4 in the upper surface of insulating ceramics cylinder 3 provided with multiple in spoke-like,
Each venthole 4 connects with the inner bottom part of shrinkage pool 2 respectively, and the upper surface of insulating ceramics cylinder 3 is located at center also concentrically on axial direction
Form to stretch into shrinkage pool 2 and be down flat tip circle cone 5, be down flat the height of tip circle cone 5 and highly consistent, the static contact of shrinkage pool 2
Concentrically axle is provided with discoidal static contact 6 to the top of seat 1, the center of static contact 6 to having the through hole 7 that is down flat addendum cone shape,
Its taper of the through hole 7 at the center of static contact 6 is consistent with the taper of shrinkage pool 2 in fixed contact pedestal 1, and the lower end diameter of through hole 7 in static contact 6
It is consistent with the upper end diameter of shrinkage pool 2 in fixed contact pedestal 1；Also include movable contact block 8, movable contact block made of discoidal insulating materials
8 bottoms are provided with moving contact 9, and the shape of moving contact 9 is caught in the through hole of static contact 6 with the form fit of through hole 7 in static contact 6, moving contact 9
In 7, the hole wall that moving contact 9 bores wall and the through hole 7 of static contact 6 is in close contact, and the bottom surface of moving contact 9 is by the upper surface of insulating ceramics cylinder 3
The tip circle cone 5 that is down flat of heart position supports.
The taper for being down flat tip circle cone 5 of the upper surface center of insulating ceramics cylinder 3 is consistent with the taper of shrinkage pool 2.
The diameter of movable contact block 8 is more than the diameter of the upper end of through hole 7 in static contact 6.
Claims (3)
- A kind of 1. disconnecting switch dynamic/static contact structure in transformer, it is characterised in that：It is made including discoidal insulating materials Fixed contact pedestal, fixed contact pedestal end face center position is down flat the shrinkage pool of tip circle taper to having, and fixed contact pedestal bottom is concentrically Axis connection has insulating ceramics cylinder, and insulating ceramics cylinder upper surface is stretched into fixed contact pedestal and extends to shrinkage pool bottom, insulating ceramics cylinder Upper surface be provided with it is multiple be distributed in the pericentral venthole in insulating ceramics cylinder upper surface in spoke-like, each venthole respectively with Shrinkage pool inner bottom part connect, insulating ceramics cylinder upper surface be located at center also concentrically formed on axial direction stretch into shrinkage pool Flattened conical body, the height for being down flat tip circle cone and shrinkage pool it is highly consistent, concentrically axle is set at the top of the fixed contact pedestal Have a discoidal static contact, static contact center is provided with the through hole of frustro-pyramidal, its taper of the through hole at static contact center with Shrinkage pool taper is consistent in fixed contact pedestal, and the through hole lower end diameter in static contact is consistent with shrinkage pool upper end diameter in fixed contact pedestal； Also include movable contact block made of discoidal insulating materials, movable contact block bottom is provided with moving contact, the moving contact shape with Shape of through holes is matched in static contact, and the moving contact is caught in the through hole of static contact, the hole of moving contact cone wall and static contact through hole Wall is in close contact, and moving contact bottom surface is supported by the tip circle cone that is down flat of insulating ceramics cylinder upper surface center.
- 2. disconnecting switch dynamic/static contact structure in a kind of transformer according to claim 1, it is characterised in that：Insulation pottery The taper for being down flat tip circle cone of porcelain cylinder upper surface center is consistent with the taper of shrinkage pool.
- 3. disconnecting switch dynamic/static contact structure in a kind of transformer according to claim 1, it is characterised in that：It is described dynamic The diameter of contact base is more than the diameter of through hole upper end in static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332717.XA CN107359058B (en) | 2017-05-12 | 2017-05-12 | Disconnecting switch dynamic/static contact structure in a kind of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332717.XA CN107359058B (en) | 2017-05-12 | 2017-05-12 | Disconnecting switch dynamic/static contact structure in a kind of transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107359058A true CN107359058A (en) | 2017-11-17 |
| CN107359058B CN107359058B (en) | 2019-04-16 |
Family
ID=60272071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710332717.XA Active CN107359058B (en) | 2017-05-12 | 2017-05-12 | Disconnecting switch dynamic/static contact structure in a kind of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107359058B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680867A (en) * | 2017-11-21 | 2018-02-09 | 北京合纵科技股份有限公司 | A kind of auxiliary earth switch |
| CN108493017A (en) * | 2018-05-21 | 2018-09-04 | 江苏泓光轨道设备有限公司 | Railway switch machine change-over switch group |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563556A (en) * | 1984-03-28 | 1986-01-07 | Michel Goldstein | Internal combustion circuit breaker |
| CN2059268U (en) * | 1989-12-08 | 1990-07-11 | 张立增 | Conical electric contact point with arc extinguishing equipment |
| CN1298548A (en) * | 1998-12-28 | 2001-06-06 | 三菱电机株式会社 | Current limiter and circuit breaker with current-limiting function |
| CN204242825U (en) * | 2014-12-12 | 2015-04-01 | 重庆长安汽车股份有限公司 | A kind of contact switch |
-
2017
- 2017-05-12 CN CN201710332717.XA patent/CN107359058B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563556A (en) * | 1984-03-28 | 1986-01-07 | Michel Goldstein | Internal combustion circuit breaker |
| CN2059268U (en) * | 1989-12-08 | 1990-07-11 | 张立增 | Conical electric contact point with arc extinguishing equipment |
| CN1298548A (en) * | 1998-12-28 | 2001-06-06 | 三菱电机株式会社 | Current limiter and circuit breaker with current-limiting function |
| CN204242825U (en) * | 2014-12-12 | 2015-04-01 | 重庆长安汽车股份有限公司 | A kind of contact switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680867A (en) * | 2017-11-21 | 2018-02-09 | 北京合纵科技股份有限公司 | A kind of auxiliary earth switch |
| CN108493017A (en) * | 2018-05-21 | 2018-09-04 | 江苏泓光轨道设备有限公司 | Railway switch machine change-over switch group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107359058B (en) | 2019-04-16 |
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Effective date of registration: 20230613 Granted publication date: 20190416 |
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