CN208548316U - A kind of novel contact component - Google Patents
A kind of novel contact component Download PDFInfo
- Publication number
- CN208548316U CN208548316U CN201821396733.1U CN201821396733U CN208548316U CN 208548316 U CN208548316 U CN 208548316U CN 201821396733 U CN201821396733 U CN 201821396733U CN 208548316 U CN208548316 U CN 208548316U
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- China
- Prior art keywords
- contact
- static
- moving
- piece
- contact piece
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- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a kind of novel contact components, and including the moving contact and static contact being oppositely arranged, moving contact includes moving contact piece and movable contact block, and one end of movable contact block connects moving contact piece, and other end is integrally formed with moving conductive rod；Static contact includes static contact piece and fixed contact pedestal, and one end of fixed contact pedestal connects static contact piece, and other end is integrally formed with static conductive rod；Static contact further includes buffering contact, and buffering contact is slidably mounted in static contact piece, and there are also springs below buffering contact, and when moving contact piece, the contact of static contact piece, spring and buffering contact absorb the kinetic energy for eliminating moving contact piece.A kind of novel contact component disclosed by the utility model, is additionally arranged a buffer structure, carries out absorption elimination to the kinetic energy of moving contact piece, eliminates spring when moving contact piece and static contact piece contact when closing a floodgate, and improves conductive stability.
Description
Technical field
The utility model relates to vacuum extinction technical field, specifically a kind of novel contact component.
Background technique
Vacuum interrupter also known as vacuum switch tube are the core components of mesohigh power switch.Vacuum interrupter passes through pipe
The excellent insulating properties of interior vacuum makes after mesohigh circuitry cuts power supply blow-out and to inhibit electric current rapidly, avoids accident and unexpected
Occur, be mainly used in the transmission & distribution electric control system of electric power, is also applied to metallurgy, mine, petroleum, chemical industry, railway, broadcast, leads to
The power distribution control systems such as news, industrial high-frequency heating.
The design structure of vacuum interrupter determines that closing rebound is a kind of its intrinsic phenomenon, when generation bounce
When, the contact resistance between dynamic and static contact periodically increases, contact separate caused by electric arc will lead to serious contact hair
Heat, Welding Phenomena, it is also possible to lead to Restriking overvoltage, seriously affect vacuum circuit breaker closes the comprehensive of performance and switchgear
Energy.
In the vacuum interrupter of existing structure, when closing a floodgate, when moving contact piece is towards static contact piece moving contact, it can generate
Bounce, to influence conductive stability.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of novel contact components, are additionally arranged a buffering knot
Structure carries out absorption elimination to the kinetic energy of moving contact piece, eliminates spring when moving contact piece and static contact piece contact when closing a floodgate,
Improve conductive stability.
Technical solution adopted in the utility model is: a kind of novel contact component, including moving contact and static contact are provided,
The moving contact includes moving contact piece and movable contact block, and the moving contact piece is connected on one end end face of movable contact block, moves touching
The other end of headstock is integrally formed with moving conductive rod；The static contact includes static contact piece and fixed contact pedestal, the static contact
Piece is connected to one end end face of fixed contact pedestal, and the other end of fixed contact pedestal is integrally formed with static conductive rod, the moving contact piece
One end end face far from moving conductive rod is oppositely arranged with static contact piece far from one end end face of static conductive rod,
The static contact further includes buffering contact, and the static contact on piece is equipped with mounting hole, the buffering contact sliding
It is fitted in mounting hole, the fixed contact pedestal is equipped with contact-support, and the contact-support is equipped with limited step, the limit
Spring is equipped between the bottom of the steps and buffering contact bottom surface；
The moving contact piece one end end face opposite with static contact piece is equipped with guiding projection, moving contact and static contact and lock
When, the guiding projection and buffering contact and down movement stretch in mounting hole until moving contact piece end face and static contact
Piece end face is bonded completely.
Compared with the prior art, the utility model has the following advantages:
In the utility model, it is provided with buffering contact and spring in static contact structure, buffers contact in static contact piece
It can slide up and down, in moving contact and static contact combined floodgate contact process, moving contact piece is first and buffers contact, in spring
Under buffer function, the kinetic energy of moving contact piece is absorbed by buffering contact and spring, to eliminate the spring of moving contact piece, is improved conductive
Stability.
In addition, moving contact on piece is also provided with guiding projection, in this way when moving contact piece move when, guiding projection at first with
Contact is buffered, then guiding projection moves down together with buffering contact, until guiding projection moves in mounting hole,
Moving contact piece end face is bonded completely with static contact piece end face, realizes that conduction is through-flow to the greatest extent, guiding projection herein is gentle
It rushes contact mechanism also and can increase the contact area of moving contact piece Yu static contact piece, increase the arc extinguishing ability of longitudinal magnetic field, improve
The breaking current ability of vacuum interrupter, reduces arc voltage, improves the high-voltage resistance capability of vacuum interrupter, can be suitably used for
High voltage circuit.
As an improvement, being equipped with elastic conductor in the mounting hole, the elastic conductor and buffering contact lateral wall are always
It is in close contact.The setting of the elastic conductor is to buffer contact energy in sliding process in vacuum interrupter on state
It enough remains and is conductively connected with static contact piece.
It improves again, the top of the mounting hole is equipped with limiting slot, and the outside of the buffering contact is equipped with limited step, moves touching
When head is with static contact separating brake, the buffering contact is limited in limiting slot by limited step, and the upper surface for buffering contact is convex
For the upper surface of static contact piece.After this structure setting, when moving contact is separated with static contact, under the elastic force effect of spring,
Buffering contact up can have positioning action after resetting movement, will not detach from mounting hole, to guarantee jumping electricity
After close a floodgate, moving contact can be contacted accurately with static contact.
Preferably, the guiding projection is an integral molding structure with moving contact piece.Integrated formed structure reduces processing work
Sequence, save the cost.
As an improvement, the side wall of the movable contact block and fixed contact pedestal is uniformly provided with spiralling rotation arc slot, arc slot is revolved
The rotation angle of projection in the horizontal plane is 105 ° -120 °.The setting of rotation arc slot is mainly used for increasing current path, to increase
Magnetic field when cut-offfing by force between contact plays the role of improving vacuum interrupter arc extinguishing ability.
Improve again, be additionally provided with magnetism gathering rings in the fixed contact pedestal or movable contact block, magnetism gathering rings one end be located at fixed contact pedestal or
The bottom of movable contact block inner cavity, the other end are abutted against with static contact piece or moving contact piece end face；Contact branch also is provided on movable contact block
Support, magnetism gathering rings are located at the radial outside of contact-support.Magnetism gathering rings can be played convergence, be increased by being made of electrical pure iron material
The effect of the strong magnetic line of force, substantially increases the uniformity of vacuum arc-extinguishing chamber contact magnetic field strength and Distribution of Magnetic Field, to increase
Effective area of the contact in drop-out current.
Detailed description of the invention
Fig. 1 is a kind of switching-off device structural schematic diagram of novel contact component of the utility model.
Fig. 2 is a kind of closing device structural schematic diagram of novel contact component of the utility model.
Fig. 3 is the structural schematic diagram of the movable contact block (fixed contact pedestal) in the utility model.
Wherein, 101- moving contact, 102- static contact, 1- moving contact piece, 1.1- guiding projection, 2- movable contact block, 3- is dynamic to be led
Electric pole, 4- static contact piece, 4.1- mounting hole, 4.2- limiting slot, 5- fixed contact pedestal, 6- static conductive rod, 7- buffer contact, 7.1- limit
Position step, 8- contact-support, 9- spring, 10- elastic conductor, 11- revolve arc slot, 12- magnetism gathering rings
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
In the description of the present invention, it should be noted that term " bottom ", " bottom surface ", " top ", " outside ",
The orientation or positional relationship of the instructions such as " upper surface ", " middle part ", " upper end " is to be based on the orientation or positional relationship shown in the drawings, only
It is the utility model and simplified description for ease of description, rather than the device or element of indication or suggestion meaning must have spy
Fixed orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term is " even
Connect ", " equipped " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
As shown in Figures 1 to 3, the utility model provides a kind of novel contact component, including moving contact 101 and static contact
102, moving contact 101 includes moving contact piece 1 and movable contact block 2, and moving contact piece 1 is connected on one end end face of movable contact block 2, is moved
The other end of contact base 2 is integrally formed with moving conductive rod 3.Specifically, moving contact piece 1 and movable contact block 2 use welding manner
It is connected and fixed.Certainly, moving conductive rod 3 and movable contact block 2 are also possible to separate structure, then connect into one by welding manner
Body.
Static contact 102 includes static contact piece 4 and fixed contact pedestal 5, and static contact piece 4 is connected to one end end face of fixed contact pedestal 5,
The other end of fixed contact pedestal 5 is integrally formed with static conductive rod 6, and moving contact piece 1 is far from one end end face of moving conductive rod 3 and stationary contact
Head piece 4 is oppositely arranged far from one end end face of static conductive rod 6.Likewise, static contact 4 and movable contact block 5 are connected using welding manner
Connect fixation.Static conductive rod 6 and fixed contact pedestal 5 are equally also possible to separate structure, are then linked into an integrated entity by welding manner.
Static contact 102 further includes buffering contact 7, and the middle part of static contact piece 4 is equipped with mounting hole 4.1, buffers contact 7 along axial direction
It is slidably fitted in mounting hole 4.1, fixed contact pedestal 5 is equipped with contact-support 8, and 8 upper end of contact-support is equipped with limited step
8.1, spring 9 is equipped between 8.1 bottom of limited step and buffering 7 bottom surface of contact.In this embodiment, buffering contact 7 is energy
Enough conductive conductors, therefore buffering contact 7 can not only buffer moving contact piece 1, can also carry out conduction, so as to
Improve the conductive through-current capability of vacuum interrupter.After moving contact piece 1 and buffering contact 7 contact, buffering contact 7 is servo-actuated contact blade
1 moves down, and under the elastic force effect of spring 9, the kinetic energy of moving contact piece 1 is absorbed by buffering contact 7 and spring 9, to eliminate
The spring of moving contact piece 1 improves conductive stability.
In the present embodiment, guiding projection 1.1, moving contact are equipped in one end end face opposite with static contact piece 4 of moving contact piece 1
When with static contact and lock, guiding projection 1.1 is contacted at the top of buffering contact 7 at first, is transported down together then as buffering contact 7
Dynamic to stretch in mounting hole 4.1 until 1 end face of moving contact piece is bonded completely with 4 end face of static contact piece, realization is led to the greatest extent
Electric connection effect.
In order to easy to process, save the cost, it is preferred that guiding projection 1.1 is an integral molding structure with moving contact piece 1.When
So, guiding projection 1.1 can also be linked together with moving contact piece 1 by welding manner.
Elastic conductor 10 is equipped in mounting hole 4.1, elastic conductor 10 is in close contact always with buffering 7 lateral wall of contact.It should
Elastic conductor 10 is torus, and the setting of elastic conductor 10 is in vacuum interrupter on state, buffer contact 7 in cunning
It can remain during dynamic and be conductively connected with static contact piece 4, to ensure moving contact piece 1 during the motion by buffering touching
First 7 with the conduction of static contact piece 4, to guarantee the stability of vacuum switch.
The top of mounting hole 4.1 be equipped with limiting slot 4.2, buffering contact 7 outside be equipped with limited step 7.1, moving contact with
When static contact separating brake, buffering contact 7 is limited in mounting hole 4.1 by limited step 7.1, and in gate-dividing state, buffering touching
First 7 upper surface protrudes from the upper surface of static contact piece 4.When moving contact is separated with static contact, acted in the elastic force of spring 9
Under, buffering contact 7 up can have positioning action after resetting movement, will not detach from mounting hole 4.1, to guarantee
When closing a floodgate after jumping electricity, moving contact piece 1 can be contacted accurately with static contact piece 4.
The side wall of movable contact block 2 and fixed contact pedestal 5 is uniformly provided with spiralling rotation arc slot 11, and rotation arc slot 11 is projected in water
Rotation angle in plane is 105 ° -120 °.The setting of rotation arc slot 11 is mainly used for increasing current path, so that enhancing is cut-off
When contact between magnetic field, play the role of improve vacuum interrupter arc extinguishing ability.
More specifically, magnetism gathering rings 12 are additionally provided in fixed contact pedestal 5 or movable contact block 2,12 one end of magnetism gathering rings is located at stationary contact
The bottom of 2 inner cavity of headstock 5 or movable contact block, the other end are abutted against with static contact piece 4 or 1 end face of moving contact piece；On movable contact block 2
Equipped with contact-support 8, magnetism gathering rings 12 are located at the radial outside of contact-support 8.
The utility model preferred embodiment is described above, but is not to be construed as limiting the scope of the invention.
The utility model is not only limited to above embodiments, and specific structure is allowed to vary, all in the utility model demand for independence
Made various change is within the protection scope of the present utility model in protection scope.
Claims (6)
1. a kind of novel contact component, including moving contact (101) and static contact (102), the moving contact (101) includes moving contact
Piece (1) and movable contact block (2), the moving contact piece (1) are connected on one end end face of movable contact block (2), movable contact block (2)
Other end is integrally formed with moving conductive rod (3)；The static contact (102) includes static contact piece (4) and fixed contact pedestal (5), institute
One end end face that static contact piece (4) is connected to fixed contact pedestal (5) is stated, the other end of fixed contact pedestal (5) is led integrally formed with quiet
Electric pole (6), one end end face and static contact piece (4) of the moving contact piece (1) far from moving conductive rod (3) are far from static conductive rod (6)
One end end face be oppositely arranged, it is characterised in that:
The static contact (102) further includes buffering contact (7), and the static contact piece (4) is equipped with mounting hole (4.1), described
Buffering contact (7) sliding is fitted in mounting hole (4.1), and the fixed contact pedestal (5) is equipped with contact-support (8), the contact
It supports (8) to be equipped with limited step (8.1), is equipped with bullet between limited step (8.1) bottom and buffering contact (7) bottom surface
Spring (9)；
The moving contact piece (1) and static contact piece (4) opposite one end end face are equipped with guiding projection (1.1), moving contact and stationary contact
Head and when lock, the guiding projection (1.1) contact with buffering contact (7) and down movement stretch to mounting hole (4.1) it is interior up to
Moving contact piece (1) end face is bonded completely with static contact piece (4) end face.
2. a kind of novel contact component according to claim 1, it is characterised in that: be equipped in the mounting hole (4.1)
Elastic conductor (10), the elastic conductor (10) are in close contact always with buffering contact (7) lateral wall.
3. a kind of novel contact component according to claim 1 or 2, it is characterised in that: the top of the mounting hole (4.1)
Equipped with limiting slot (4.2), the outside of buffering contact (7) is equipped with limited step (7.1), when moving contact is with static contact separating brake,
The buffering contact (7) is limited in limiting slot (4.2) by limited step (7.1), and buffers the upper surface protrusion of contact (7)
In the upper surface of static contact piece (4).
4. a kind of novel contact component according to claim 1, it is characterised in that: the guiding projection (1.1) and dynamic
Contact blade (1) is an integral molding structure.
5. a kind of novel contact component according to claim 1, it is characterised in that: the movable contact block (2) and static contact
The side wall of seat (5) is uniformly provided with spiralling rotation arc slot (11), and the rotation angle of rotation arc slot (11) projection in the horizontal plane is
105°-120°。
6. a kind of novel contact component according to claim 1, it is characterised in that: the fixed contact pedestal (5) or moving contact
It being additionally provided with magnetism gathering rings (12) in seat (2), magnetism gathering rings (12) one end is located at the bottom of fixed contact pedestal (5) or movable contact block (2) inner cavity,
The other end is abutted against with static contact piece (4) or moving contact piece (1) end face；Contact-support (8), poly- magnetic also are provided on movable contact block (2)
Ring (12) is located at the radial outside of contact-support (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821396733.1U CN208548316U (en) | 2018-08-28 | 2018-08-28 | A kind of novel contact component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821396733.1U CN208548316U (en) | 2018-08-28 | 2018-08-28 | A kind of novel contact component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208548316U true CN208548316U (en) | 2019-02-26 |
Family
ID=65426528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821396733.1U Expired - Fee Related CN208548316U (en) | 2018-08-28 | 2018-08-28 | A kind of novel contact component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208548316U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863507A (en) * | 2020-06-18 | 2020-10-30 | 平高集团有限公司 | Contact and fracture structure for high-speed mechanical switch |
| CN112133606A (en) * | 2020-09-29 | 2020-12-25 | 哈尔滨工业大学 | Static contact for reducing closing rebound of direct-acting electromagnetic contactor |
| CN112164621A (en) * | 2020-09-29 | 2021-01-01 | 山东晨鸿电气有限公司 | Composite electric contact |
| CN112216533A (en) * | 2020-10-29 | 2021-01-12 | 阜阳中骄智能科技有限公司 | Contact protection mechanism based on arc shielding structure |
| CN113745044A (en) * | 2021-08-06 | 2021-12-03 | 四川大学 | Vacuum arc-extinguishing chamber contact |
-
2018
- 2018-08-28 CN CN201821396733.1U patent/CN208548316U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863507A (en) * | 2020-06-18 | 2020-10-30 | 平高集团有限公司 | Contact and fracture structure for high-speed mechanical switch |
| CN112133606A (en) * | 2020-09-29 | 2020-12-25 | 哈尔滨工业大学 | Static contact for reducing closing rebound of direct-acting electromagnetic contactor |
| CN112164621A (en) * | 2020-09-29 | 2021-01-01 | 山东晨鸿电气有限公司 | Composite electric contact |
| CN112216533A (en) * | 2020-10-29 | 2021-01-12 | 阜阳中骄智能科技有限公司 | Contact protection mechanism based on arc shielding structure |
| CN112216533B (en) * | 2020-10-29 | 2022-06-14 | 阜阳中骄智能科技有限公司 | Contact protection mechanism based on arc shielding structure |
| CN113745044A (en) * | 2021-08-06 | 2021-12-03 | 四川大学 | Vacuum arc-extinguishing chamber contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190226 |