CN107527755A - A kind of disconnecting switch and its contact assembly and its contact - Google Patents
A kind of disconnecting switch and its contact assembly and its contact Download PDFInfo
- Publication number
- CN107527755A CN107527755A CN201710624718.1A CN201710624718A CN107527755A CN 107527755 A CN107527755 A CN 107527755A CN 201710624718 A CN201710624718 A CN 201710624718A CN 107527755 A CN107527755 A CN 107527755A
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- CN
- China
- Prior art keywords
- contact
- gas
- matrix
- outer space
- disconnecting switch
- 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
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- 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
Landscapes
- Push-Button Switches (AREA)
- Contacts (AREA)
Abstract
The present invention relates to a kind of disconnecting switch and its contact assembly and its contact, disconnecting switch includes contact assembly, contact assembly includes contact and the contact base being connected with contact, the contact includes matrix, described matrix have be used for the contact surface for being adapted to contact and the joint face that be connected with contact base, be communicated with contact surface in described matrix with matrix outer space and when be adapted to contact combined floodgate for gas between the two be expelled to matrix outer space, when with being adapted to contact combined floodgate matrix outer space gas into gas-guiding structure between the two.Because contact is provided with gas-guiding structure, disconnecting switch is during separating brake or combined floodgate, the gas of gas and contact outer between contact is interconnected without having abrupt pressure change, thus making contact, gas is not influenceed between by contact during action, speed when enhancing disconnecting switch separating brake with closing a floodgate, heat caused by contact has also been taken away simultaneously, has made contact heat generation rate low.
Description
Technical field
The present invention relates to a kind of disconnecting switch and its contact assembly and its contact.
Background technology
Disconnecting switch is a kind of derailing switch for being mainly used for isolating power supply, grid switching operation, connection and cut-out low current circuit
Part, it can reliably isolate the part for needing to have a power failure in high voltage distribution installation with live part, to ensure service work
Safety.Contact is indispensable part in disconnecting switch, with the improvement of national grid, needed for the contact used in disconnecting switch
The current capacity to be transmitted is also increasing, and contact is needed with strong shock resistance, through-current capability is big, airflow field is evenly distributed
The characteristics of.
Existing disconnecting switch is during use, and in order to ensure to open a sluice gate the sensitivity with closing a floodgate, moving contact can be with pole
Fast speed is separated or contacted with static contact.For using the disconnecting switch docked with face of face between moving contact and static contact,
During combined floodgate, when the speed of moving contact is too fast, the air pressure between moving contact and static contact can increase suddenly, for
The direction of motion of moving contact produces resistance, and during separating brake, because the speed of moving contact is too fast, moving contact and static contact
Between region no-man's-land occurs and produces negative pressure, so as to produce pulling force backward, shadow in the direction of motion of moving contact
The motion of sound of movement contact, thus design it is a kind of can the contact of gases affect be between by contact in moving contact quick acting
It is very necessary.
The content of the invention
It is an object of the invention to provide a kind of moving contact in separating brake and making process not gases affect between by contact
Contact, present invention also offers a kind of contact assembly using the contact；Present invention also offers one kind to use the sets of contacts
The disconnecting switch of part.
In order to solve the above-mentioned technical problem, the first technical scheme of disconnecting switch of the invention is：A kind of disconnecting switch,
Including contact assembly, contact assembly includes contact and the contact base being connected with contact, and the contact includes matrix, described matrix tool
Have for the contact surface for being adapted to contact and the joint face that be connected with contact base, be communicated with described matrix contact surface and
Matrix outer space and be adapted to when contact closes a floodgate for gas between the two be expelled to matrix outer space, be adapted to it is tactile
The gas in matrix outer space enters gas-guiding structure between the two when head closes a floodgate.
The beneficial effect of the technical scheme is：Because matrix is provided with gas-guiding structure, process of the disconnecting switch in combined floodgate
In, the air between the contact of two contacts can be discharged to contact outer by gas-guiding structure, reduce the resistance of contact action,
Disconnecting switch between the gas of contact outer is filled up contact by gas-guiding structure, prevents going out for no-man's-land when separating brake
Existing, thus making contact, gas is not influenceed between by contact during action, accelerates disconnecting switch separating brake with closing a floodgate
When speed, while also taken away heat caused by contact, made contact heat generation rate low.
Second of technical scheme of disconnecting switch of the present invention be：In the first technical scheme of the disconnecting switch of the present invention
On the basis of, the gas-guiding structure includes setting air slot on the contact surface.
The beneficial effect of the technical scheme is：The structure of air slot is simple, convenient processing.
The third technical scheme of disconnecting switch of the present invention is：In the first technical scheme of the disconnecting switch of the present invention
On the basis of, the gas-guiding structure is that one end aperture is located at contact surface, other end aperture between contact surface and joint face
The gas port of matrix side.
The beneficial effect of the technical scheme is：Guide effect of the gas port to gas motion is more preferable.
The 4th kind of technical scheme of disconnecting switch of the present invention be：In second of technical scheme of the disconnecting switch of the present invention
On the basis of, the gas-guiding structure is also located at contact surface including one end aperture, other end aperture is located at contact surface and joint face it
Between matrix side gas port.
The beneficial effect of the technical scheme is：Air slot and gas port act on simultaneously, enhance the air guide of gas-guiding structure
Effect.
The 5th kind of technical scheme of disconnecting switch of the present invention be：In the 4th kind of technical scheme of the disconnecting switch of the present invention
On the basis of, the air slot is rice font air slot.
The beneficial effect of the technical scheme is：The air slot of rice font is consistent with the direction that gas flows, and can make gas
The flowing of stream is more smooth.
The 6th kind of technical scheme of disconnecting switch of the present invention be：In the 4th or the 5th kind of skill of the disconnecting switch of the present invention
On the basis of art scheme, the air slot is interconnected with gas port.
The beneficial effect of the technical scheme is：Air slot connects with gas port can be mutually reinforcing air slot and gas port
Air guide effect.
The 7th kind of technical scheme of disconnecting switch of the present invention be：In the 6th kind of technical scheme of the disconnecting switch of the present invention
On the basis of, the matrix of the contact is mushroom head structure, and the top of mushroom head is contact surface, and the root of mushroom head is connection
Face, the aperture that the gas port is located on matrix side are positioned close at root position.
The beneficial effect of the technical scheme is：The matrix of contact is mushroom head structure, can be reduced to air motion
When resistance, it is thus also avoided that there is point discharge phenomenon in contact end face, and the aperture that gas port is located on matrix side, which is arranged on, to be leaned on
At nearly root position, the direction of gas port is more preferable close to direction of motion during contact action, air guide effect.
The 8th kind of technical scheme of disconnecting switch of the present invention be：In the 7th kind of technical scheme of the disconnecting switch of the present invention
On the basis of, the contact of the contact assembly is connected with contact base using vacuum-sintering.
The beneficial effect of the technical scheme is：Vacuum-sintering can strengthen through-current capability between contact and contact base with
Mechanical strength.
The first technical scheme of contact assembly of the present invention is：A kind of contact assembly, including contact and be connected with contact
Contact base, the contact includes matrix, described matrix have be used for contact surface be adapted to contact and with contact base company
The joint face connect, be communicated with contact surface in described matrix with matrix outer space and with being adapted to when contact closes a floodgate for both it
Between gas be expelled to matrix outer space, enter between the two in the gas with being adapted to matrix outer space when contact closes a floodgate
Gas-guiding structure.
The beneficial effect of the technical scheme is：Because matrix is provided with gas-guiding structure, process of the disconnecting switch in combined floodgate
In, the air between the contact of two contacts can be discharged to contact outer by gas-guiding structure, reduce the resistance of contact action,
Disconnecting switch between the gas of contact outer is filled up contact by gas-guiding structure, prevents going out for no-man's-land when separating brake
Existing, thus making contact, gas is not influenceed between by contact during action, accelerates the speed of contact action, simultaneously
Also heat caused by contact has been taken away, has made contact heat generation rate low.
Second of technical scheme of contact assembly of the present invention be：In the first technical scheme of the contact assembly of the present invention
On the basis of, the gas-guiding structure includes setting air slot on the contact surface.
The beneficial effect of the technical scheme is：The structure of air slot is simple, convenient processing.
The third technical scheme of contact assembly of the present invention is：In the first technical side of the contact assembly of the present invention
On the basis of case, the gas-guiding structure is that one end aperture is located at contact surface, other end aperture between contact surface and joint face
Matrix side gas port.
The beneficial effect of the technical scheme is：Guide effect of the gas port to gas motion is more preferable.
The 4th kind of technical scheme of contact assembly of the present invention be：In second of technical scheme of the contact assembly of the present invention
On the basis of, the gas-guiding structure is also located at contact surface including one end aperture, other end aperture is located at contact surface and joint face it
Between matrix side gas port.
The beneficial effect of the technical scheme is：Air slot and gas port act on simultaneously, enhance the air guide of gas-guiding structure
Effect.
The 5th kind of technical scheme of contact assembly of the present invention be：In the 4th kind of technical scheme of the contact assembly of the present invention
On the basis of, the air slot is rice font air slot.
The beneficial effect of the technical scheme is：The air slot of rice font is consistent with the direction that gas flows, and can make gas
The flowing of stream is more smooth.
The 6th kind of technical scheme of contact assembly of the present invention be：In the 4th or the 5th kind of skill of the contact assembly of the present invention
On the basis of art scheme, the air slot is interconnected with gas port.
The beneficial effect of the technical scheme is：Air slot connects with gas port can be mutually reinforcing air slot and gas port
Air guide effect.
The 7th kind of technical scheme of contact assembly of the present invention be：In the 6th kind of technical scheme of the contact assembly of the present invention
On the basis of, the matrix of the contact is mushroom head structure, and the top of mushroom head is contact surface, and the root of mushroom head is connection
Face, the aperture that the gas port is located on matrix side are positioned close at root position.
The beneficial effect of the technical scheme is：The matrix of contact is mushroom head structure, can be reduced to air motion
When resistance, it is thus also avoided that there is point discharge phenomenon in contact end face, and the aperture that gas port is located on matrix side, which is arranged on, to be leaned on
At nearly root position, the direction of gas port is more preferable close to direction of motion during contact action, air guide effect.
The 8th kind of technical scheme of contact assembly of the present invention be：In the 7th kind of technical scheme of the contact assembly of the present invention
On the basis of, the contact of the contact assembly is connected with contact base using vacuum-sintering.
The beneficial effect of the technical scheme is：Vacuum-sintering can strengthen through-current capability between contact and contact base with
Mechanical strength.
The first technical scheme of contact of the present invention is：A kind of contact, including matrix, described matrix, which has, to be used for and phase
The joint face answered the contact surface of contact and be connected with contact base, described matrix have the contact being used for being adapted to contact
Face and the joint face being connected with contact base, contact surface is communicated with matrix outer space and with being adapted to contact in described matrix
During combined floodgate matrix outer space is expelled to for gas between the two, in the gas with being adapted to matrix outer space when contact closes a floodgate
Into gas-guiding structure between the two.
The beneficial effect of the technical scheme is：Because matrix is provided with gas-guiding structure, process of the disconnecting switch in combined floodgate
In, the air between the contact of two contacts can be discharged to contact outer by gas-guiding structure, reduce the resistance of contact action,
Disconnecting switch between the gas of contact outer is filled up contact by gas-guiding structure, prevents going out for no-man's-land when separating brake
Existing, thus making contact, gas is not influenceed between by contact during action, accelerates the speed of contact action, simultaneously
Also heat caused by contact has been taken away, has made contact heat generation rate low.
Second of technical scheme of contact of the present invention be：On the basis of the first technical scheme of the contact of the present invention
On, the gas-guiding structure includes setting air slot on the contact surface.
The beneficial effect of the technical scheme is：The structure of air slot is simple, convenient processing.
The third technical scheme of contact of the present invention is：On the basis of the first technical scheme of the contact of the present invention
On, the gas-guiding structure is that one end aperture is located at the matrix side of contact surface, other end aperture between contact surface and joint face
The gas port in face.
The beneficial effect of the technical scheme is：Guide effect of the gas port to gas motion is more preferable.
The 4th kind of technical scheme of contact of the present invention be：On the basis of second of technical scheme of the contact of the present invention
On, the gas-guiding structure is also located at the base of contact surface, other end aperture between contact surface and joint face including one end aperture
The gas port of body side surface.
The beneficial effect of the technical scheme is：Air slot and gas port act on simultaneously, enhance the air guide of gas-guiding structure
Effect.
The 5th kind of technical scheme of contact of the present invention be：On the basis of the 4th kind of technical scheme of the contact of the present invention
On, the air slot is rice font air slot.
The beneficial effect of the technical scheme is：The air slot of rice font is consistent with the direction that gas flows, and can make gas
The flowing of stream is more smooth.
The 6th kind of technical scheme of contact of the present invention be：In the 4th or the 5th kind of technical scheme of the contact of the present invention
On the basis of, the air slot is interconnected with gas port.
The beneficial effect of the technical scheme is：Air slot connects with gas port can be mutually reinforcing air slot and gas port
Air guide effect.
The 7th kind of technical scheme of contact of the present invention be：On the basis of the 6th kind of technical scheme of the contact of the present invention
On, the matrix of the contact is mushroom head structure, and the top of mushroom head is contact surface, and the root of mushroom head is joint face, institute
The aperture that gas port is located on matrix side is stated to be positioned close at root position.
The beneficial effect of the technical scheme is：The matrix of contact is mushroom head structure, can be reduced to air motion
When resistance, it is thus also avoided that there is point discharge phenomenon in contact end face, and the aperture that gas port is located on matrix side, which is arranged on, to be leaned on
At nearly root position, the direction of gas port is more preferable close to direction of motion during contact action, air guide effect.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment 1 of the contact assembly of the disconnecting switch of the present invention；
Fig. 2 is the top view of the contact of the embodiment 1 of the contact assembly of the disconnecting switch of the invention in Fig. 1；
Fig. 3 is the structural representation of the embodiment 2 of the disconnecting switch of the present invention；
Fig. 4 is the structural representation of the embodiment 3 of the disconnecting switch of the present invention；
Fig. 5 is the structural representation of the embodiment 4 of the disconnecting switch of the present invention.
Respectively marked in figure：1. contact；11. contact surface；12. joint face；13. matrix side；14. air slot；15. air guide
Hole；2. contact base；21. screwed hole.
Embodiment
As shown in Figure 1 and 2, including contact assembly, contact assembly include the He of contact 1 to the embodiment 1 of the disconnecting switch of the present invention
The contact base 2 for the cylindrical type being connected with contact 1, end of the contact base 2 away from contact 1 are provided with the spiral shell for being used for being connected with disconnecting switch
Pit 21；Contact 1 includes matrix, and matrix has and the contact surface 11 of other contacts and the joint face being connected with contact base 2
12, the contact surface of contact 1 is connected with contact base 2 by vacuum-sintering, to increase the intensity of contact site, also increases contact 1
With the through-current capability between contact base 2, certainly in other embodiments, contact 1 can also be bolted with contact base 2；
Matrix side 13 is connected between the contact surface 11 and joint face 12 of contact 1, in this embodiment contact surface 11, matrix side 13
With the generally mushroom head structure of joint face 12, resistance during air motion is reduced, it is thus also avoided that tip occurs in contact end face
Electric discharge phenomena, the gas-guiding structure of contact surface 11 and matrix outer space, in this embodiment air guide are communicated with contact surface 11
Structure is the air slot 14 for the rice font being arranged on contact surface 11 and one end aperture is located on contact surface 11, other end aperture position
The gas port 15 on matrix side 13 between contact surface 11 and joint face 12, air slot 14 and gas port 15 interconnect,
The efficiency of air guide can be strengthened, in other examples, air slot 14 can also be the shape that vortex type etc. is beneficial to air guide.
The disconnecting switch of the present invention when needing to close a floodgate, rapidly transport in opposite directions on the same line with static contact by moving contact
Dynamic, the gas between contact is discharged in contact outer space by air slot and gas port, is avoided between contact because of gas pressure
Abruptly increase and motion to contact produces resistance；When disconnecting switch is needing separating brake, moving contact and static contact are on the same line
Quickly backwards to move, now the gas in contact outer space between air slot and gas port enter contact, avoid because
Contact excessive velocities and occur vacuum belt between contact so as to produce negative pressure, have influence on the responsiveness of disconnecting switch separating brake；Gas
The importing of stream can also take away heat caused by contact simultaneously with export, reduce the heat generation rate of contact.
The embodiment 2 of the disconnecting switch of the present invention with embodiment 1 as shown in figure 3, differ only in：Air slot and air guide
Hole works respectively, does not connect therebetween.
The embodiment 3 of the disconnecting switch of the present invention with embodiment 1 as shown in figure 4, differ only in：Omit embodiment 1
In gas port, gas-guiding structure for connection contact surface and contact outer airflow field air slot.
The embodiment 4 of the disconnecting switch of the present invention with embodiment 1 as shown in figure 5, differ only in：Omit embodiment 1
In air slot, gas-guiding structure for connection contact surface and contact outer airflow field gas port.
Present invention also offers a kind of implementation of contact assembly for example shown in Fig. 1 ~ 5, its concrete structure is isolated with above-mentioned
The structure of the contact assembly of switch is identical, and here is omitted.
Present invention also offers a kind of implementation of contact for example shown in Fig. 1 ~ 5, its concrete structure and above-mentioned disconnecting switch
Contact structure it is identical, here is omitted.
Claims (10)
- A kind of 1. contact, it is characterised in that：Including matrix, described matrix have be used for be adapted to contact contact surface and with The joint face of contact base connection, contact surface is communicated with described matrix with matrix outer space and when with being adapted to contact combined floodgate Matrix outer space is expelled to for gas between the two, enters two in the gas with being adapted to matrix outer space when contact closes a floodgate Gas-guiding structure between person.
- 2. contact according to claim 1, it is characterised in that：The gas-guiding structure includes setting air guide on the contact surface Groove.
- 3. contact according to claim 1, it is characterised in that：The gas-guiding structure be one end aperture be located at contact surface, separately The gas port of matrix side of one end aperture between contact surface and joint face.
- 4. contact according to claim 2, it is characterised in that：The gas-guiding structure also includes one end aperture positioned at contact The gas port of the matrix side of face, other end aperture between contact surface and joint face.
- 5. contact according to claim 4, it is characterised in that：The air slot is rice font air slot.
- 6. the contact according to claim 4 or 5, it is characterised in that：The air slot is interconnected with gas port.
- 7. contact according to claim 6, it is characterised in that：The matrix of the contact is mushroom head structure, mushroom head Top be contact surface, the root of mushroom head is joint face, and the aperture that the gas port is located on matrix side is positioned close to At root position.
- 8. a kind of contact assembly, including contact and the contact base that is connected with contact, it is characterised by：The contact includes matrix, institute Stating matrix has the joint face being used for being adapted to the contact surface of contact and being connected with contact base, is communicated with described matrix Contact surface with matrix outer space and be adapted to contact close a floodgate when for gas between the two be expelled to matrix outer space, Gas with being adapted to matrix outer space when contact closes a floodgate enters gas-guiding structure between the two.
- 9. contact assembly according to claim 8, it is characterised in that：The gas-guiding structure includes setting on the contact surface Air slot.
- 10. a kind of disconnecting switch, including contact assembly, contact assembly includes contact and the contact base being connected with contact, its feature It is：The contact includes matrix, and described matrix, which has, is used for what is be connected with the contact surface of adaptation contact and with contact base Joint face, be communicated with contact surface in described matrix with matrix outer space and with being adapted to when contact closes a floodgate between the two Gas is expelled to matrix outer space, in the air guide of gas entrance between the two with being adapted to matrix outer space when contact closes a floodgate Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624718.1A CN107527755B (en) | 2017-07-27 | 2017-07-27 | A kind of disconnecting switch and its contact assembly and its contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624718.1A CN107527755B (en) | 2017-07-27 | 2017-07-27 | A kind of disconnecting switch and its contact assembly and its contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107527755A true CN107527755A (en) | 2017-12-29 |
| CN107527755B CN107527755B (en) | 2019-09-13 |
Family
ID=60680237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624718.1A Active CN107527755B (en) | 2017-07-27 | 2017-07-27 | A kind of disconnecting switch and its contact assembly and its contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107527755B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05298957A (en) * | 1992-04-23 | 1993-11-12 | Meidensha Corp | Manufacture of vacuum interrupter electrode |
| US5268237A (en) * | 1991-10-28 | 1993-12-07 | Chugai Denki Kogyo K.K. | Composite electrical contact |
| JPH06349388A (en) * | 1993-06-03 | 1994-12-22 | Ngk Insulators Ltd | Vacuum valve |
| CN1321994A (en) * | 2000-05-02 | 2001-11-14 | 施耐德电器工业公司 | Vacuum box specially adapted for electrical protection device of switch or circuit breaker |
| CN201374256Y (en) * | 2009-04-03 | 2009-12-30 | 浙江昌泰电力开关有限公司 | Primary static contact of circuit breaker |
| CN204480950U (en) * | 2015-04-06 | 2015-07-15 | 铁岭市世纪电力设备有限公司 | A kind of outdoor AC high-voltage isolating switch |
-
2017
- 2017-07-27 CN CN201710624718.1A patent/CN107527755B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5268237A (en) * | 1991-10-28 | 1993-12-07 | Chugai Denki Kogyo K.K. | Composite electrical contact |
| JPH05298957A (en) * | 1992-04-23 | 1993-11-12 | Meidensha Corp | Manufacture of vacuum interrupter electrode |
| JPH06349388A (en) * | 1993-06-03 | 1994-12-22 | Ngk Insulators Ltd | Vacuum valve |
| CN1321994A (en) * | 2000-05-02 | 2001-11-14 | 施耐德电器工业公司 | Vacuum box specially adapted for electrical protection device of switch or circuit breaker |
| CN201374256Y (en) * | 2009-04-03 | 2009-12-30 | 浙江昌泰电力开关有限公司 | Primary static contact of circuit breaker |
| CN204480950U (en) * | 2015-04-06 | 2015-07-15 | 铁岭市世纪电力设备有限公司 | A kind of outdoor AC high-voltage isolating switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107527755B (en) | 2019-09-13 |
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