CN207068759U - A kind of contact of A.C. contactor supports device - Google Patents
A kind of contact of A.C. contactor supports device Download PDFInfo
- Publication number
- CN207068759U CN207068759U CN201720837642.6U CN201720837642U CN207068759U CN 207068759 U CN207068759 U CN 207068759U CN 201720837642 U CN201720837642 U CN 201720837642U CN 207068759 U CN207068759 U CN 207068759U
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- contact
- horizontal groove
- bridge
- contact bridge
- plastic sheet
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Abstract
The contact that the utility model is related to a kind of A.C. contactor supports device, including contact supporting and grid-spaced contact bridge, the both ends of the grid-spaced contact bridge are respectively arranged with contact, horizontal groove is offered on the contact supporting, the centre position of the grid-spaced contact bridge is overlapped on the bottom of the horizontal groove, and it is provided with crimp spring in the horizontal groove, wherein one end of the crimp spring is connected to the apical position of the horizontal groove, the other end is then connected on the board-type contact bridge, on the contact supporting, there is the flexible plastic sheet extended obliquely respectively on the both lateral sides side of horizontal groove, the top of the flexible plastic sheet forms curved transition sections, the curved transition sections are formed with the lower surface of the contact bridge and abutted.Flexible plastic sheet in the utility model plays a part of pallet to contact bridge, i.e. flexible plastic sheet support contact bridge, can ensure that the moving contact of contact bridge more smoothly contacts in motion process with static contact, reliable and stable.
Description
Technical field
The utility model supports device more particularly to a kind of contact of A.C. contactor.
Background technology
A.C. contactor applies a kind of low-voltage controling appliance the most universal in power construction and automatic control system.Make
For executive component, for connecting, disjunction circuit or the operation of the equipment such as motor is frequently controlled.Mainly by dynamic and static main contact, touch
Head bracket, arc-extinguish chamber, armature, magnet coil, iron core, auxiliary contact and rack shell etc. form, and will often have in this area
The contact bridge and contact supporting of moving contact are referred to as contact and support device.Its operation principle is：When magnet coil is powered, make armature
The adhesive under electromagnetic action, moving contact is contacted with static contact directly or by lever drive, connect circuit；Magnet coil powers off
Afterwards, armature auto-returned under action of reset spring, is commonly called as discharging, and contact is separated, circuit disjunction.
Those skilled in the art is it is to be understood that when magnet coil is powered and supports what device moved down with moving contact by armature
During, often due to the contact bridge being arranged on contact supporting is to abruptly start to move by inactive state, and cause contact bridge
Swung up and down in motion process, it is impossible to the moving contact of contact bridge both sides is closed in same time and static contact, pole
Big have impact on the reliability and stability of contact connection, and reduce the service life of A.C. contactor.
The content of the invention
A kind of the defects of the purpose of this utility model is to overcome prior art, there is provided friendship simple in construction, reliable and stable
The contact for flowing contactor supports device.
To achieve the above object, the utility model supports device, including contact branch using a kind of contact of A.C. contactor
Frame and board-type contact bridge, the both ends of the board-type contact bridge are respectively arranged with moving contact, offered on the contact supporting
Horizontal groove, the centre position of the board-type contact bridge is overlapped on the bottom face of the horizontal groove, and the transverse direction
Crimp spring is provided with groove, wherein one end of the crimp spring is connected to the apical position of the horizontal groove, another
End is then connected on the board-type contact bridge, is distinguished on the contact supporting, on the both lateral sides side of horizontal groove
With the flexible plastic sheet extended obliquely, the cross section of the flexible plastic sheet is in inverted " V " font structure, and elastoplast
The top of piece forms curved transition sections, and the curved transition sections are formed with the lower surface of the board-type contact bridge and abutted.In this reality
In new, buffer capacity when being touched for lifting moving contact with static contact, by the peak position on the curved transition sections
It is arranged to the bottom face of slightly above described horizontal groove.
Further set as of the present utility model, the left and right sides in the horizontal groove has being used for for protrusion setting
The limited wall for preventing contact bridge or so from offseting or circumferentially rotating.
By the above-mentioned improvement to prior art, those skilled in the art is it is to be understood that in the prior art, when armature band
When moving contact supports that device moves down, contact bridge thereon is due to being that centre position is overlapped on the bottom face of horizontal groove, so
Abutted above contact bridge and led by crimp spring afterwards, the contact of this structure support device in folding process easily on the bottom
It is dynamic, especially in the moment contacted with static contact, such as if not being closed at, then extremely easy damage contact, or even influence exchange and connect
The service behaviour of tentaculum, shorten its service life；And pass through the both sides side of the horizontal direction in horizontal groove in the utility model
Face sets flexible plastic sheet, and is allowed to abut with the lower surface of contact bridge so that flexible plastic sheet forms essence to contact bridge
Pallet effect in meaning, that is, hold in the palm contact bridge, and then make it that contact bridge is more steady reliable in motion process, moving contact with
The same ageing accuracy rate of static contact contact is higher, reduces the probability of contact damage, improves A.C. contactor accordingly
Service life.
Brief description of the drawings
Fig. 1 is the front view that contact supports device in embodiment 1.
Fig. 2 is the front view of contact supporting in Fig. 1.
Fig. 3 is along the schematic cross-sectional view in B-B directions in figure Fig. 1.
Embodiment
As Figure 1-3, the present embodiment supports device using a kind of contact of A.C. contactor, and Fig. 1 combinations Fig. 3 substantially may be used
Know, in the present embodiment, described contact supports that device includes contact supporting 1 and four board-type contact bridges 2, the board-type connect
The both ends for touching bridge 2 are respectively arranged with moving contact 20, are understood further combined with Fig. 2, four transverse directions are offered on the contact supporting 1
Groove 10, the centre position of the board-type contact bridge 2 is overlapped on the bottom face of the horizontal groove 10, and the transverse direction
Crimp spring 11 is provided with groove 10, wherein one end of the crimp spring 11 is connected to the top position of the horizontal groove 10
Put, the other end is then connected on the board-type contact bridge 2, on the contact supporting 1, positioned at the both lateral sides of horizontal groove 10
There is the flexible plastic sheet 12 extended obliquely, in the present embodiment, the cross section of the flexible plastic sheet 12 respectively on side
In inverted " V " font structure, and the top of flexible plastic sheet 12 forms curved transition sections 120, the curved transition sections 120 with it is described
The lower surface of board-type contact bridge 2, which is formed, to abut.In the present embodiment, (do not given in accompanying drawing with static contact for lifting moving contact 20
Display) touching when buffer capacity, the peak position on the curved transition sections 120 is arranged to slightly above described transverse direction and led to
The bottom face of groove 10.
In the present embodiment, to avoid board-type contact bridge 2 or so certain or axial rotation, in the horizontal groove 10
Interior left and right sides protrusion is provided with limited wall 13.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.This
The technical staff of industry is retouched in above-described embodiment and specification it should be appreciated that the utility model is not restricted to the described embodiments
That states simply illustrates principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model
Various changes and modifications are also had, these changes and improvements are both fallen within claimed the scope of the utility model.This practicality is new
The protection domain of type requirement is according to appended claim and its equivalent thereof.
Claims (5)
1. a kind of contact of A.C. contactor supports device, including contact supporting and board-type contact bridge, the board-type contact
The both ends of bridge are respectively arranged with moving contact, and horizontal groove, the centre of the board-type contact bridge are offered on the contact supporting
Position is overlapped on the bottom face of the horizontal groove, and crimp spring is provided with the horizontal groove, the crimping bullet
Wherein one end of spring is connected to the apical position of the horizontal groove, and the other end is then connected on the board-type contact bridge, its
It is characterised by：On the contact supporting, there is the elasticity extended obliquely respectively on the both lateral sides side of horizontal groove
Plastic sheet, the top of the flexible plastic sheet form curved transition sections, the curved transition sections with the board-type contact bridge
End face, which is formed, to abut.
2. a kind of contact of A.C. contactor according to claim 1 supports device, it is characterised in that：The arc-shaped transition
Peak position in portion is slightly above the bottom face of the horizontal groove.
3. a kind of contact of A.C. contactor according to claim 1 or 2 supports device, it is characterised in that：The elasticity
The cross section of plastic sheet is in inverted " V " font structure.
4. a kind of contact of A.C. contactor according to claim 1 or 2 supports device, it is characterised in that：The transverse direction
The left and right sides in groove has the limited wall for preventing that contact bridge or so from offseting or circumferentially rotating that is used for of protrusion setting.
5. a kind of contact of A.C. contactor according to claim 3 supports device, it is characterised in that：The horizontal groove
The interior left and right sides has the limited wall for preventing that contact bridge or so from offseting or circumferentially rotating that is used for of protrusion setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837642.6U CN207068759U (en) | 2017-07-06 | 2017-07-06 | A kind of contact of A.C. contactor supports device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837642.6U CN207068759U (en) | 2017-07-06 | 2017-07-06 | A kind of contact of A.C. contactor supports device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207068759U true CN207068759U (en) | 2018-03-02 |
Family
ID=61511559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720837642.6U Active CN207068759U (en) | 2017-07-06 | 2017-07-06 | A kind of contact of A.C. contactor supports device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207068759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121522A (en) * | 2021-11-30 | 2022-03-01 | 浙江新控电气科技有限公司 | Contact support for control and protection switching device |
-
2017
- 2017-07-06 CN CN201720837642.6U patent/CN207068759U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121522A (en) * | 2021-11-30 | 2022-03-01 | 浙江新控电气科技有限公司 | Contact support for control and protection switching device |
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