CN106981379A - A kind of switching device with playback function - Google Patents
A kind of switching device with playback function Download PDFInfo
- Publication number
- CN106981379A CN106981379A CN201710349496.7A CN201710349496A CN106981379A CN 106981379 A CN106981379 A CN 106981379A CN 201710349496 A CN201710349496 A CN 201710349496A CN 106981379 A CN106981379 A CN 106981379A
- Authority
- CN
- China
- Prior art keywords
- clamping plate
- conduction clamping
- switching device
- static contact
- guide sleeve
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H2001/508—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position with mechanical means to prevent return/reverse movement of movable contact once opening or closing cycle has started
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
A kind of switching device with playback function of the present invention, including the static contact being fixed on static contact fixed block and the moving contact being used in combination with static contact, the static contact includes conduction clamping plate and is arranged on the root of conduction clamping plate and the homing system being slidably matched with conduction clamping plate, and the playback part, spring, the restriction playback part that is used in conduction clamping plate that the homing system includes being set in conduction clamping plate move horizontally the positive stop lug boss of extreme position and the guide sleeve being fixedly installed on outside conduction clamping plate；A kind of switching device with playback function of the present invention, efficient, performance unique, simple in construction novel in design is good, low cost, more importantly there is playback function, it ensure that spacing and after using the automatic homing of action when the switching device is used, avoid the deformation caused because of the change of electric current and electromagnetic force and excessive damage, it is easy to be used for a long time, and convenient maintenance, there is application prospect well.
Description
Technical field
The invention belongs to switching technique field, it is related to a kind of switch of circuit, and in particular to a kind of that there is the function that playbacks
Switching device.
Background technology
At present, switching device plays the role of vital in life.And exist in existing switching device many
Defect：
First, the contact surface area of moving contact and static contact is small, easily produce after larger resistance, especially longtime running, by
In the influence of spark discharge, oxide-film and carbonized film are produced in contact surface, causes local electrical resistance to increase, it is easier to cause spark to put
Electricity, is consequently formed vicious circle；
Second, longtime running causes moving contact and static contact unavoidably to produce certain deformation, build-up of pressure is uneven, then can not
Ensure the reliable contacts of moving contact and static contact；
Third, and using the electromagnetic force produced by ring current and Ampere's law and then causing the electromagnetic plate of static contact to step up dynamic touch
This class switching device of head, it is fragile, be not suitable for being used for a long time；When the electromagnetic plate that electric current flows through bending each produces magnetic field,
Repulsion in single electromagnetic plate can cause electromagnetic plate to deform, if things go on like this, it is impossible to playback, and then can not use；Two electromagnetic plates
Between attraction moving contact therebetween is clamped, when excessive by the electric current of electromagnetic plate, cause electromagnetic plate to the folder of moving contact
Tight action is excessive, the phenomenon that the moving contact of centre can be caused can not pull out Chu Lai and deform, and then can all cause the damage of switching device,
Not enough, the life-span is extremely short, not easy-maintaining for protection；
Fourth, from structure, existing switching device structure is complicated, coordinated using more mechanical organ, thus it is expensive,
And it is fragile；And switching device is typically exposed in air, the static contact and moving contact unprotect device of original device, so that
So that its weatherability is poor, service life is short.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of switch with playback function
Device, efficient, performance unique, simple in construction novel in design is good, low cost, it is often more important that, can be automatic with playback function
Repair, it is to avoid deformation and excessive damage, be easy to be used for a long time, and convenient maintenance, there is application prospect well.
To achieve the above object, the technical solution adopted in the present invention is：A kind of switching device with playback function, bag
The static contact being fixed on static contact fixed block and the moving contact being used in combination with static contact are included, the static contact includes conduction
Clamping plate and the root of conduction clamping plate and the homing system being slidably matched with conduction clamping plate are arranged on, the homing system includes being arranged
Playback part, spring in conduction clamping plate, being used in conduction clamping plate limit the limit that playback part moves horizontally extreme position
Position boss and the guide sleeve being fixedly installed on outside conduction clamping plate, the root extension of the guide sleeve are connected to static contact fixed block
Interior, the playback part is provided with the jack inserted for conduction clamping plate, and jack is extended to have to two ends respectively to be come for conduction clamping plate
The track slot slided is returned, the width of the track slot is not less than the width of jack, between the playback part and conduction clamping plate
Spring is connected with, the end of playback part is arranged in the chute inside static contact fixed block；
The root of the conduction clamping plate is fixedly connected on static contact fixed block, and conduction clamping plate is by two pieces of electromagnetic plate groups bent
Into the electromagnetic plate is included on the interior touch panel contacted with moving contact and the outer touch panel contacted with guide sleeve, interior touch panel and outer touch panel
It is fixedly installed on the inside of telescopic platform, the guide sleeve and is fixedly installed the boss I corresponding with telescopic platform；
The moving contact is oppositely arranged in the middle of two pieces of electromagnetic plates, and the side of moving contact is the contact surface contacted with interior touch panel, institute
State and the boss II corresponding with telescopic platform is fixedly installed on contact surface, set between the moving contact and guide sleeve for noncontact
Put, the root of moving contact is fixedly connected on moving contact fixed block.
Further, the conduction clamping plate is oppositely arranged by the electromagnetic plate of two block-shaped identical bendings and formed.
Further, the width of the track slot is more than the width of jack.
Further, the guide sleeve is fixedly installed outside outer touch panel, and the root of guide sleeve is extended by bolt to be connected
In static contact fixed block.
Further, the guide sleeve is the plate-like structure that insulating materials is made.
Further, in the chute that the end of the playback part passes through guide sleeve and is arranged on inside static contact fixed block.
Further, the electromagnetic plate is internally provided with extensional electromagnetism support.
The beneficial effects of the invention are as follows：
A kind of switching device with playback function of the present invention, efficient, performance unique, simple in construction novel in design is good, low cost,
More importantly there is playback function, it is ensured that spacing and after using the automatic homing of the action when switching device is used, it is to avoid
Because deformation and excessive damage that the change of electric current and electromagnetic force is caused, it is easy to be used for a long time, and convenient maintenance, have fine
Ground application prospect.It is embodied in the following aspects：
1st, the homing system of static contact, it is ensured that spacing and after using the automatic homing of the action when switching device is used, enters
And avoid the deformation caused because of the change of electric current and electromagnetic force and excessive damage；Wherein：
（1）Playback part：Playback part is set in conduction clamping plate, and playback part is provided with the jack inserted for conduction clamping plate, jack point
Not being extended to two ends has the track slot slidably reciprocated for conduction clamping plate, and the width of the track slot is not less than jack
Spring is connected between width, and playback part and conduction clamping plate；The effect for being provided for limiting conduction clamping plate of playback part
Action, it is ensured that spacing and after using the automatic homing of the action when static contact of the switching device is used, so avoid because
The deformation caused for the change of electric current and electromagnetic force and excessive damage；
（2）Spring, positive stop lug boss and chute：Spring is connected between playback part and conduction clamping plate, positive stop lug boss, which is located at, leads
It is used for restriction playback part on electric clamping plate and moves horizontally extreme position；And the end for the part that playbacks is set on static contact through guiding
In chute inside fixed block；So control playback part vertically and horizontally, be more convenient playback part to conduction clamping plate
Playback control；
（3）Guide sleeve：The root extension of guide sleeve is connected in static contact fixed block, has consolidated stability；It is solid on the inside of guide sleeve
Surely it is provided with the boss I corresponding with telescopic platform, it is to avoid the electromagnetism reprimand between the interior touch panel and outer touch panel of single electromagnetic plate
The excessive phenomenon for causing electromagnetic plate to deform of power effect；
2nd, the electromagnetic plate that the conduction clamping plate of static contact is bent using shape identical, which is oppositely arranged, forms, and utilizes ring current and peace
Rule is trained, moving contact can be clamped by electric current, electric current is bigger, and clamping force is bigger；
3rd, static contact and moving contact are used in combination.The present invention is simple in construction efficiently, using complete between moving contact and static contact
Contact, contact area is big, safe and reliable, it is ensured that the smooth flow of electric current, it is therefore prevented that the phenomenon of spark discharge；On static contact
It is fixedly installed on interior touch panel on telescopic platform, the contact surface of moving contact and is fixedly installed the boss corresponding with telescopic platform
II so that during moving contact insertion static contact, telescopic platform and boss II are engaged, and contact is reliable；
4th, electromagnetic plate is internally provided with extensional electromagnetism support, and the shape of electromagnetic plate itself is limited to a certain extent, is allowed to more difficult
Deformation；
5th, a kind of switching device with playback function of the present invention, is easy to be used for a long time, and convenient maintenance, and performance is good, low cost,
There is application prospect well.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural representation of playback part；
Fig. 3 is the partial schematic diagram between static contact and moving contact, guide sleeve；
Marked in figure：1st, static contact, 2, moving contact, 3, static contact fixed block, 4, conduction clamping plate, 5, playback part, 6, spring, 7, limit
Position boss, 8, guide sleeve, 9, jack, 10, track slot, 11, chute, 12, electromagnetic plate, 13, interior touch panel, 14, outer touch panel,
15th, telescopic platform, 16, boss I, 17, contact surface, 18, boss II, 19, moving contact fixed block, 20, extensional electromagnetism support.
Embodiment
Specific embodiment is provided below in conjunction with the accompanying drawings, and technical scheme is described in further detail.This implementation
Example is the most preferred embodiment premised on technical solution of the present invention, but protection scope of the present invention is not limited to following embodiments.
As Figure 1-3, it is a kind of that there is the switching device of playback function, including be fixed on quiet on static contact fixed block 3
Contact 1 and the moving contact 2 being used in combination with static contact, the static contact 1 include conduction clamping plate 4 and are arranged on conduction clamping plate 4
Root and the homing system that is slidably matched with conduction clamping plate 4, the homing system includes the playback being set in conduction clamping plate 4
Part 5, spring 6, moving horizontally the positive stop lug boss 7 of extreme position for restriction playback part 5 and fixing in conduction clamping plate 4 set
The guide sleeve 8 outside conduction clamping plate 4 is put, the root extension of the guide sleeve 8 is connected in static contact fixed block 3, consolidated
Stability, as shown in Fig. 2 the playback part 5 is provided with the jack 9 inserted for conduction clamping plate 4, jack 9 extends to two ends respectively
The track slot 10 slidably reciprocated for conduction clamping plate 4 is provided with, the width of the track slot 10 is not less than the width of jack 9,
Spring 6 is connected between the playback part 5 and conduction clamping plate, the effect for being provided for limiting conduction clamping plate of playback part is moved
Make, it is ensured that spacing and after using the automatic homing of the action when static contact of the switching device is used, so avoid because
Deformation and excessive damage that the change of electric current and electromagnetic force is caused；The end of playback part 5 is arranged on inside static contact fixed block 3
In chute 11；The setting of positive stop lug boss and chute, controls the horizontally and vertically motion of playback part, is more convenient playback part to conduction
The playback control of clamping plate；
The root of the conduction clamping plate 4 is fixedly connected on static contact fixed block 3, and conduction clamping plate 4 is by two pieces of electromagnetic plates bent
12 compositions, as shown in figure 3, the electromagnetic plate 12 include the interior touch panel 13 contact with moving contact and contacted with guide sleeve 8 it is outer tactile
Telescopic platform 15 is fixedly installed on plate 14, interior touch panel 13 and outer touch panel 14, the inner side of guide sleeve 8 is fixedly installed and stretched
Contracting set platform 15 corresponding boss I 16, it is to avoid the electromagnetic repulsion force between the interior touch panel and outer touch panel of single electromagnetic plate makees used
The big phenomenon for causing electromagnetic plate to deform；
The moving contact 2 is oppositely arranged in the middle of two pieces of electromagnetic plates 12, as shown in figure 3, the side of moving contact 2 is and interior touch panel 13
The boss II 18 corresponding with telescopic platform 15 is fixedly installed on the contact surface 17 of contact, the contact surface 17 so that stationary contact
Contact area is big when being used in combination between head and moving contact, safe and reliable, it is ensured that the smooth flow of electric current, it is therefore prevented that spark
The phenomenon of electric discharge；Set between the moving contact 2 and guide sleeve 8 for noncontact, the root of moving contact 2 is fixedly connected on moving contact
On fixed block 19.
Further, the conduction clamping plate 4 is oppositely arranged by the electromagnetic plate 12 of two block-shaped identical bendings and formed, and is helped
Enter wherein and be clamped in moving contact.
Further, the width of the track slot 10 be more than jack 9 width, facilitate conduction clamping plate insert and due to by
Slidably reciprocate, moreover it is possible to further limit its sliding position, conduction clamping plate progress is acted spacing to electromagnetic force.
Further, the guide sleeve 8 is fixedly installed outside outer touch panel 14, and the root of guide sleeve 8 is extended by bolt
It is connected in static contact fixed block 3, safe and reliable, stability is good.
Further, the guide sleeve 8 is the plate-like structure that insulating materials is made.
Further, the end of the playback part 5 passes through guide sleeve 8 and the chute being arranged on inside static contact fixed block 3
In 11, chute 11 limits playback part horizontally and vertically shift position, and playback of the convenient playback part to conduction clamping plate is controlled.
Further, the electromagnetic plate 12 is internally provided with extensional electromagnetism support 20, and electromagnetic plate is limited to a certain extent
The shape of itself, is allowed to more difficult deformation.
The present invention it is a kind of have playback function switching device, when moving contact 2 reach static contact 1 two pieces of electromagnetic plates 12 it
Between when, electric current sequentially passes through the interior touch panel 13 and outer touch panel 14 of moving contact 2, electromagnetic plate 12, the interior touch panel 13 of each electromagnetic plate 12
With the sense of current in outer touch panel 14 on the contrary, according to Ampere's law, the magnetic direction that it is formed is identical, then interior touch panel 13 and outer touch
Repulsion is formed between plate 14；The sense of current simultaneously in the interior touch panel 13 of two electromagnetic plates 12 is identical, then its magnetic field side produced
To on the contrary, then form attraction between two interior touch panels 13, the now reprimand between the interior touch panel and outer touch panel of same electromagnetic plate
Attraction between power, and the interior touch panel of two electromagnetic plates is clamped to moving contact simultaneously, and electric current is bigger, and clamping force is bigger, a side
Moving contact is caused by the excessively difficult extraction of clamping force, flimsy phenomenon, on the other hand, the interior touch panel of same electromagnetic plate in face
Repulsion between outer touch panel, can cause electromagnetic plate to deform and damage；And the homing system of the present invention, then to the effect of electromagnetic plate
Action is defined, it is ensured that spacing and after using the automatic homing of the action when static contact of the switching device is used, and then
Avoid the deformation caused because of the change of electric current and electromagnetic force and excessive damage；And fixation is set respectively for static contact and moving contact
The telescope tab being used in combination and boss II are equipped with, using Full connected, while contact area is big, is also further defined
Electromagnetic force；Therefore, the present invention it is a kind of have be classified as the switching device of function, be easy to be used for a long time, and convenient maintenance, performance is good,
Low cost, there is application prospect well.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any Spirit Essences without departing from the present invention
With the change made under principle, modification, replacement, combine, simplify, should be equivalent substitute mode, be included in the present invention
In protection domain.
Claims (7)
1. there is the switching device of playback function a kind of, including be fixed on static contact fixed block（3）On static contact（1）With with it is quiet
The moving contact that contact is used in combination（2）, it is characterised in that：The static contact（1）Including conduction clamping plate（4）Be arranged on conduction
Clamping plate（4）Root and and conduction clamping plate（4）The homing system being slidably matched, the homing system includes being set in conduction clamping plate
（4）On playback part（5）, spring（6）, positioned at conduction clamping plate（4）On be used for limit playback part（5）Move horizontally extreme position
Positive stop lug boss（7）Be fixedly installed on conduction clamping plate（4）Outside guide sleeve（8）, the guide sleeve（8）Root extension connect
It is connected on static contact fixed block（3）It is interior, the playback part（5）It is provided with and supplies conduction clamping plate（4）The jack of insertion（9）, jack（9）Point
It is not extended to two ends and supplies conduction clamping plate（4）The track slot slidably reciprocated（10）, the track slot（10）Width
Not less than jack（9）Width, the playback part（5）And conduction clamping plate（4）Between be connected with spring（6）, playback part（5）
End be arranged on static contact fixed block（3）Internal chute（11）It is interior；
The conduction clamping plate（4）Root be fixedly connected on static contact fixed block（3）On, conduction clamping plate（4）Bent by two pieces
Electromagnetic plate（12）Composition, the electromagnetic plate（12）Including the interior touch panel contacted with moving contact（13）With with guide sleeve（8）Contact
Outer touch panel（14）, interior touch panel（13）With outer touch panel（14）On be fixedly installed telescopic platform（15）, the guide sleeve（8）Inner side
It is fixedly installed and telescopic platform（15）Corresponding boss I（16）；
The moving contact（2）It is oppositely arranged on two pieces of electromagnetic plates（12）Centre, moving contact（2）Side be and interior touch panel（13）Connect
Tactile contact surface（17）, the contact surface（17）On be fixedly installed and telescopic platform（15）Corresponding boss II（18）, institute
State moving contact（2）With guide sleeve（8）Between for noncontact set, moving contact（2）Root be fixedly connected on moving contact fixed block
（19）On.
2. a kind of switching device with playback function according to claim 1, it is characterised in that：The conduction clamping plate
（4）By the electromagnetic plate of two block-shaped identical bendings（12）It is oppositely arranged and forms.
3. a kind of switching device with playback function according to claim 1, it is characterised in that：The track slot
（10）Width be more than jack（9）Width.
4. a kind of switching device with playback function according to claim 1, it is characterised in that：The guide sleeve（8）
It is fixedly installed in outer touch panel（14）Outside, guide sleeve（8）Root by bolt extension be connected to static contact fixed block（3）It is interior.
5. a kind of switching device with playback function according to claim 1, it is characterised in that：The guide sleeve（8）
The plate-like structure being made for insulating materials.
6. a kind of switching device with playback function according to claim 1, it is characterised in that：The playback part（5）
End pass through guide sleeve（8）And it is arranged on static contact fixed block（3）Internal chute（11）It is interior.
7. a kind of switching device with playback function according to claim 1, it is characterised in that：The electromagnetic plate（12）
It is internally provided with extensional electromagnetism support（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349496.7A CN106981379A (en) | 2017-05-17 | 2017-05-17 | A kind of switching device with playback function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349496.7A CN106981379A (en) | 2017-05-17 | 2017-05-17 | A kind of switching device with playback function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106981379A true CN106981379A (en) | 2017-07-25 |
Family
ID=59343897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710349496.7A Pending CN106981379A (en) | 2017-05-17 | 2017-05-17 | A kind of switching device with playback function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106981379A (en) |
-
2017
- 2017-05-17 CN CN201710349496.7A patent/CN106981379A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170725 |