CN107068426A - Clamping plate type power switch cabinet contact - Google Patents
Clamping plate type power switch cabinet contact Download PDFInfo
- Publication number
- CN107068426A CN107068426A CN201710470129.2A CN201710470129A CN107068426A CN 107068426 A CN107068426 A CN 107068426A CN 201710470129 A CN201710470129 A CN 201710470129A CN 107068426 A CN107068426 A CN 107068426A
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- CN
- China
- Prior art keywords
- contact
- moving contact
- intermediate plate
- flexible joint
- moving
- 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
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/38—Plug-and-socket contacts
- H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
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- Clamps And Clips (AREA)
Abstract
The invention discloses a kind of clamping plate type power switch cabinet contact, including arm connecting seat and multi-disc moving contact, in addition to flexible joint, each moving contact is connected by flexible joint with arm connecting seat, flat segments are provided with each moving contact, the flat segments of each moving contact surround the clamping zone of static contact jointly；Also include the banding part being arranged on moving contact, the banding part is used to apply the power for clamping static contact on moving contact.This contact can effectively increase the contact area of moving contact and static contact, and to cause the contact, quantity of heat production is less in the on-state, it is to avoid the accidents such as on fire, blast occur in the case of overheat for switch cubicle.
Description
Technical field
The present invention relates to power contacts technical field, more particularly to a kind of clamping plate type power switch cabinet contact.
Background technology
High voltage electric switch cabinet is the common device of power system, and it controls the switching of power system, is power station, change
The critical elements of the power hubs such as power station, power distribution room.
Switch cubicle is made up of breaker and bus cabinet.Breaker is movable, can promote, pull out, and is set on bus cabinet
There is static contact, in the active procedure of breaker, the moving contact on breaker is contacted or disengaged with above-mentioned static contact, reaches adjustment
The purpose of power system switching state.Moving contact is the important component on breaker, and moving contact used in current switch cubicle is equal
For cage contact.A plurality of conductive connection piece is bundled into a cage type by cage contact by bundle spring, two ends can be respectively fitted over breaker and
On the conducting rod of switch cubicle, carrying electric current passes through.However, the contact arm of cage contact and static contact and breaker is connect by contact
Touch, and be possible to very big by the electric current of switch cubicle, this allows for existing switch cubicle in the closed state, it is easy to because cage
The heating of formula contact causes high temperature in cabinet, causes the material aging such as insulating sleeve adjacent with cage contact speed fast, in cabinet
The accidents such as generation high-voltage breakdown, short circuit, then the burning of proximity switch cabinet, blast, lead to major accident.
The content of the invention
For existing moving contact of breaker set forth above use cage contact, due to cage contact exist with contact arm,
Static contact is only a contact, easily causes the problem of switch cubicle in-cabinet temperature is too high, is opened the invention provides a kind of clamping plate type electric power
Cabinet contact is closed, this contact can effectively increase the contact area of moving contact and static contact, to cause the contact in the on-state
Quantity of heat production is less, it is to avoid the accidents such as on fire, blast occur in the case of overheat for switch cubicle.
The clamping plate type power switch cabinet contact that the present invention is provided solves problem by following technical essential：Clamping plate type electric power
Switch cabinet contact, including arm connecting seat and multi-disc moving contact, in addition to flexible joint, each moving contact pass through flexible joint and arm
Connecting seat is connected, and flat segments is provided with each moving contact, the flat segments of each moving contact surround the clamping zone of static contact jointly；
Also include the banding part being arranged on moving contact, the banding part, which is used to apply on moving contact, clamps static contact
Power.
Specifically, above flexible joint can use fexible conductor, as using strand copper wire, as being laminated multiple layer of copper piece
Conductor, copper braided wire etc..Using upper contact head as the connector between switch cabinet static contact and the contact arm of breaker, using
When, arm connecting seat is fixedly connected with contact arm, during breaker is promoted and is pulled out, by switching moving contact and static contact
Connection status, changes the switching state of corresponding circuits.
In the prior art, the electric current that switch cubicle passes through is all very big, at least hundreds of peaces, the even upper Wan An of at most several kilo-amperes.
And cage contact it is general by tens pieces of conductive sheet sets into.Every piece of conductive connecting piece is all that point is contacted with static contact, and contact area is about
One square millimeter, and the electric current passed through on above contact surface is general all more than 10 peaces, far beyond body current carrying density (about
10 peaces), the structure of above cage contact is caloric value at contact very big basic reason.
In this programme, by setting flexible joint between arm connecting seat and multiple moving contacts, above flexible joint is quiet
During contact insertion clamping zone, plastic deformation can be passed through, it is ensured that the wall of flat segments can be in existing on moving contact
The contact of stationary contact head or linear contact lay, i.e. above plastic deformation of direct rod shape are used for the relative position conversion for realizing moving contact.More than
Banding part be moving contact apply clamping static contact power, to ensure be contacted over or linear contact lay reliability.
Further technical scheme is：
The arm connecting seat includes multi-disc intermediate plate, and each intermediate plate is connected with moving contact by flexible joint, in addition to even
Connecting bolt, the connecting bolt is used to realize the bolt connection between intermediate plate and contact arm.Specifically, in this structure, equivalent to
Arm connecting seat is set to split-type structural, above multi-disc intermediate plate is convenient to realize with touching also using the flexibility of flexible joint
The face contact of head arm.After being installed due to this contact, arm connecting seat keeps connection status with contact arm all the time, therefore is connected more than using
Bolt realizes the connection of intermediate plate and contact arm, compared to the connected mode of traditional use cage contact, not only connection reliability
It is higher, while having bigger contact area.
Intermediate plate, moving contact, flexible joint three quantity it is equal, each intermediate plate by one of flexible joint with wherein
One moving contact is connected.In this programme, if above quantity is N, N number of intermediate plate, N number of moving contact, N number of flexible joint can constitute N
Group connector, each connector includes being mutually solely between an intermediate plate, a moving contact and a flexible joint, connector
Vertical, so, it may be such that between connector that there is good interchangeability；Meanwhile, connector is relatively independent, may be such that arm connecting seat
It can adapt to the contact arm of different model.
As a kind of implementation being easy to implement, the quantity of the intermediate plate and moving contact is two, in addition to cushion block,
When contact arm is held between two panels intermediate plate, the cushion block is held between two panels intermediate plate.In this programme, due to intermediate plate
It is connected by screw bolts between contact arm, to avoid because contact arm is too short, particularly connecting bolt, will to wearing two panels intermediate plate
When contact arm is clamped between two panels intermediate plate by the connecting bolt, the reliability for causing intermediate plate to be connected with contact arm is not high,
Above-mentioned cushion block is set, and above cushion block provides support by corresponding opposite end for intermediate plate, the relative position between constraint intermediate plate is reached
The purpose put.
Can be by elastic recoil as one kind, the automatic banding part implementation that clamping static contact power is provided for moving contact,
The banding part is the helical spring of annular, and the quantity at least two of banding part, and banding part, which is bound round, is located at the flat of moving contact
On straight section.The helical spring of above annular is a ring as by the straight helical spring winding of tradition, and moving contact is located in described
The inner side of ring, the ring is located in the circumferential direction of static contact clamping zone, and the ring is contacted with each moving contact.It is right above
The restriction of banding part position on moving contact, can avoid single moving contact from being tilted relative to static contact and influence both face patches
Close.
As the specific implementation of moving contact, one end of each moving contact is connected by flexible joint with arm connecting seat, respectively
The flat segments being additionally provided with the free end of moving contact on the bending wing, each moving contact are respectively positioned between the bending wing and flexible joint,
The bending wing on each moving contact surrounds the static contact introducing port of a bell mouth shape jointly.In this programme, due to this contact and stationary contact
Head operationally has relative motion, flexibility, rigging error in flexible joint, under the effect such as thermal deformation, it is easy to cause by putting down
The clamping zone that straight section is surrounded deviates with static contact, and the introducing port of above bell mouth shape is convenient to imported into static contact by described flat
In the clamping zone that straight section is surrounded.
The invention has the advantages that：
In this programme, by setting flexible joint between arm connecting seat and multiple moving contacts, above flexible joint is quiet
During contact insertion clamping zone, plastic deformation can be passed through, it is ensured that the wall of flat segments can be in existing on moving contact
The contact of stationary contact head or linear contact lay, i.e. above plastic deformation of direct rod shape are used for the relative position conversion for realizing moving contact.More than
Banding part be moving contact apply clamping static contact power, to ensure be contacted over or linear contact lay reliability.
Brief description of the drawings
Fig. 1 is the structural representation that clamping plate type power switch cabinet of the present invention touches first specific embodiment.
Reference in figure is followed successively by：1st, static contact, 2, banding part, 3, moving contact, 31, flat segments, 4, flexible joint,
5th, cushion block, 6, contact arm, 7, arm connecting seat, 71, intermediate plate, 8, connecting bolt.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the present invention structure be not limited only to it is following
Embodiment.
Embodiment 1：
As shown in figure 1, clamping plate type power switch cabinet contact, including arm connecting seat 7 and multi-disc moving contact 3, in addition to flexibility
Joint 4, each moving contact 3 is connected by flexible joint 4 with arm connecting seat 7, is provided with flat segments 31 on each moving contact 3, respectively
The flat segments 31 of moving contact 3 surround the clamping zone of static contact 1 jointly；
Also include the banding part 2 being arranged on moving contact 3, the banding part 2, which is used to apply on moving contact 3, clamps stationary contact
First 1 power.
In the present embodiment, it is circular static contact 1 that the moving contact 3 of the contact, which is used to clamp existing section, so, to avoid
Single moving contact 3 and the only Line Contacts of static contact 1, therefore the clamping face for being set to each flat segments 31 is radian and the table of static contact 1
The consistent arcwall face in face, so, it is ensured that each moving contact 3 is contacted with the face of static contact 1.
Embodiment 2：
As shown in figure 1, clamping plate type power switch cabinet contact, including arm connecting seat 7 and multi-disc moving contact 3, in addition to flexibility
Joint 4, each moving contact 3 is connected by flexible joint 4 with arm connecting seat 7, is provided with flat segments 31 on each moving contact 3, respectively
The flat segments 31 of moving contact 3 surround the clamping zone of static contact 1 jointly；
Also include the banding part 2 being arranged on moving contact 3, the banding part 2, which is used to apply on moving contact 3, clamps stationary contact
First 1 power.
In the present embodiment, for ease of the manufacture of moving contact 3, it is a plane to be set to the clamping face of moving contact 3, so feelings
The structure of static contact 1 matched under condition with moving contact 3 is also needed to make certain improvements, and the side of static contact 1 is set to by many
Individual plane composition, and the angle of each moving contact 3 of guarantee and position apply tightening force under the constraint of flexible joint 4 in banding part 2
When, it can be fitted with the corresponding surface on static contact 1.
Embodiment 3：
As shown in figure 1, the present embodiment is further qualified on the basis of embodiment 1：The arm connecting seat 7 includes multi-disc
Intermediate plate 71, and each intermediate plate 71 is connected with moving contact 3, in addition to connecting bolt 8 by flexible joint 4, the connecting bolt 8 is used
In realizing the bolt connection between intermediate plate 71 and contact arm 6.In the present embodiment, each intermediate plate 71 can by connecting bolt 8 directly with
The bolt connection of contact arm 6, i.e., set the through hole coordinated with the gap of connecting bolt 8 on each intermediate plate 71, sets interior in contact arm 6
Screwed hole；Each intermediate plate 71 also can be by realize the connection of intermediate plate 71 and contact arm 6 to the connecting bolt 8 for wearing bolt, such as touching
The through hole coordinated with the gap of connecting bolt 8 is set in head arm 6, and intermediate plate 71 is just right two-by-two in the circumferential direction of contact arm 6, and folder
On piece 71 also set with the gap of connecting bolt 8 coordinate through hole, above connecting bolt 8 by clamp just to two panels intermediate plate 71,
Reach the purpose for realizing that correspondence intermediate plate 71 is fixed with contact arm 6；As those skilled in the art, the above two-by-two just to two panels press from both sides
In piece 71, may be alternatively provided as setting internal thread hole on wherein a piece of intermediate plate 71, contact arm 6 and set in addition on a piece of intermediate plate 71 with
The mode for the through hole that the gap of connecting bolt 8 coordinates realizes the outside that correspondence intermediate plate 71 is fixed on to contact arm 6, connection in the case of this
Bolt 8 is also to wearing contact arm 6.
Intermediate plate 71, moving contact 3, the three of flexible joint 4 quantity it is equal, each intermediate plate 71 passes through one of flexible joint
4 are connected with one of moving contact 3.
As a kind of implementation being easy to implement, the quantity of the intermediate plate 71 and moving contact 3 is two, in addition to pad
Block 5, when contact arm 6 is held between two panels intermediate plate 71, the cushion block 5 is held between two panels intermediate plate 71.It is used as this
Art personnel, existing contact arm 6 is also more use section to be circular shaft-like, therefore is to enable arm connecting seat 7 and contact arm 6
Arm connecting seat 7 in enough face laminatings, the present embodiment is when for existing cylindrical contact arm 6, and the clamping face of each intermediate plate 71 is
The arcwall face consistent with the surface radian of contact arm 6；The clamping face of each intermediate plate 71 in the present embodiment also may be configured as plane, this
Sample, corresponding plane is improved to by the side of contact arm 6.
Embodiment 4：
The present embodiment provides a kind of concrete implementation scheme on the basis of the technical scheme that embodiment 1 is provided, such as Fig. 1 institutes
Show, can be by elastic recoil as one kind, the automatic implementation of banding part 2 that the power of clamping static contact 1 is provided for moving contact 3, institute
Helical spring of the banding part 2 for annular, and the quantity at least two of banding part 2 are stated, banding part 2 binds round and is located at moving contact 3
In flat segments 31.In the present embodiment, banding part 2 is two, and two banding parts 2 are separately positioned on the different ends of flat segments 31.
One end of each moving contact 3 is connected by flexible joint 4 with arm connecting seat 7, is also set up on the free end of each moving contact 3
There are the flat segments 31 on the bending wing, each moving contact 3 to be respectively positioned between the bending wing and flexible joint 4, the bending wing on each moving contact 3
The introducing port of static contact 1 of a bell mouth shape is surrounded jointly.
In the present embodiment, for ease of processing, the side of supporting static contact 1 is set to be enclosed by multiple planes with this contact
Into so, the moving contact 3 is formed using the straight-bar bending of rectangular cross-section, and the purpose of above bending is in each moving contact 3
It is upper to form the bending wing to facilitate any one plane on the importing of static contact 1, moving contact 3 as the clamping face of flat segments 31.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert this
The embodiment of invention is confined to these explanations.For general technical staff of the technical field of the invention,
The other embodiment drawn in the case where not departing from technical scheme, should be included within the scope of the present invention.
Claims (6)
1. clamping plate type power switch cabinet contact, including arm connecting seat (7) and multi-disc moving contact (3), it is characterised in that also including soft
Property joint (4), each moving contact (3) is connected with arm connecting seat (7) by flexible joint (4), is provided with each moving contact (3)
Flat segments (31), the flat segments (31) of each moving contact (3) surround the clamping zone of static contact (1) jointly；
Also include the banding part (2) being arranged on moving contact (3), the banding part (2), which is used to apply on moving contact (3), to be clamped
The power of static contact (1).
2. clamping plate type power switch cabinet contact according to claim 1, it is characterised in that the arm connecting seat (7) includes
Multi-disc intermediate plate (71), and each intermediate plate (71) is connected with moving contact (3), in addition to connecting bolt (8) by flexible joint (4),
The connecting bolt (8) is used to realize the bolt connection between intermediate plate (71) and contact arm (6).
3. clamping plate type power switch cabinet contact according to claim 2, it is characterised in that intermediate plate (71), moving contact (3),
The quantity of flexible joint (4) three is equal, and each intermediate plate (71) passes through one of flexible joint (4) and one of moving contact
(3) it is connected.
4. clamping plate type power switch cabinet contact according to claim 2, it is characterised in that the intermediate plate (71) and moving contact
(3) quantity is two, in addition to cushion block (5), when contact arm (6) is held between two panels intermediate plate (71), the pad
Block (5) is held between two panels intermediate plate (71).
5. clamping plate type power switch cabinet contact according to claim 1, it is characterised in that the banding part (2) is annular
Helical spring, and the quantity at least two of banding part (2), banding part (2) binds round the flat segments (31) for being located at moving contact (3)
On.
6. clamping plate type power switch cabinet contact according to claim 1, it is characterised in that one end of each moving contact (3) leads to
Cross flexible joint (4) with arm connecting seat (7) to be connected, the bending wing, each moving contact are additionally provided with the free end of each moving contact (3)
(3) flat segments (31) on are respectively positioned between the bending wing and flexible joint (4), and the bending wing on each moving contact (3) is surrounded jointly
Static contact (1) introducing port of one bell mouth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470129.2A CN107068426B (en) | 2017-06-20 | 2017-06-20 | Clamp plate type power switch cabinet contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470129.2A CN107068426B (en) | 2017-06-20 | 2017-06-20 | Clamp plate type power switch cabinet contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107068426A true CN107068426A (en) | 2017-08-18 |
| CN107068426B CN107068426B (en) | 2020-07-07 |
Family
ID=59594099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710470129.2A Active CN107068426B (en) | 2017-06-20 | 2017-06-20 | Clamp plate type power switch cabinet contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068426B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002352650A (en) * | 2001-05-28 | 2002-12-06 | Toko Electric Corp | Switch contact and switch device |
| CN2796065Y (en) * | 2005-04-08 | 2006-07-12 | 仪征市电瓷电器有限责任公司 | Finger touching type isolation switch |
| CN105895393A (en) * | 2015-07-20 | 2016-08-24 | 王静 | Isolation switch accessory capable of tensioning relative to contact finger and preventing electrical conduction |
| CN206789439U (en) * | 2017-06-20 | 2017-12-22 | 王丽萍 | Clamping plate type power switch cabinet contact |
-
2017
- 2017-06-20 CN CN201710470129.2A patent/CN107068426B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002352650A (en) * | 2001-05-28 | 2002-12-06 | Toko Electric Corp | Switch contact and switch device |
| CN2796065Y (en) * | 2005-04-08 | 2006-07-12 | 仪征市电瓷电器有限责任公司 | Finger touching type isolation switch |
| CN105895393A (en) * | 2015-07-20 | 2016-08-24 | 王静 | Isolation switch accessory capable of tensioning relative to contact finger and preventing electrical conduction |
| CN206789439U (en) * | 2017-06-20 | 2017-12-22 | 王丽萍 | Clamping plate type power switch cabinet contact |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107068426B (en) | 2020-07-07 |
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