CN201868348U - Direct-current contactor - Google Patents
Direct-current contactor Download PDFInfo
- Publication number
- CN201868348U CN201868348U CN2010206246500U CN201020624650U CN201868348U CN 201868348 U CN201868348 U CN 201868348U CN 2010206246500 U CN2010206246500 U CN 2010206246500U CN 201020624650 U CN201020624650 U CN 201020624650U CN 201868348 U CN201868348 U CN 201868348U
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- CN
- China
- Prior art keywords
- binding post
- push rod
- contactor
- armature
- cavity
- 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.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Electromagnets (AREA)
Abstract
The utility model discloses a direct-current contactor. The direct-current contactor is characterized by comprising a shell, a base, a wiring terminal, a binding post, a moving contact, a static contact, a coil, an armature, a push rod, a spring, a permanent magnet and a magnet yoke, wherein the permanent magnet is fixedly connected with the base; and the magnet yoke is arranged in a cavity body and is close to the contact position of the moving contact and the static contact. In the direct-current contactor, the built-in permanent magnet is positioned below a static contact component; and the magnetic force is enhanced directionally by action of the magnetic yoke and a magnetic-permeable piece, therefore, the effect of an arc-extinguishing system formed by two-way pull arcs of the permanent magnet and an electromagnet is good, so that the electric arc generated when the contacts are disconnected is lengthened and extinguished, the wear generated by the contacts for the electric arc is reduced, and therefore, the service life of the contactor is prolonged.
Description
Technical field
The utility model relates to field of electric control, relates in particular to a kind of D.C. contactor.
Background technology
D.C. contactor is a kind of electromagnetic switch of controlling big current switching by little current switching, its operation principle is: after energising under the effect of coil at little electric current of contactor, coil produces magnetic field, thereby the effect conducting of the electromagnetic force that produces by coil magnetic field or disconnect major loop, be that moving contact contacts the realization conducting with fixed contact, moving contact does not contact with fixed contact and realizes outage, reaches the purpose of the big electric current of little Current Control.
D.C. contactor electric arc when conducting and disconnection major loop is bigger, and the long-term existence of big electric arc is understood the life-span of influencing contactor, thereby influences the life-span of D.C. contactor.Existing D.C. contactor arc quenching effect is not good and sealing property is bad, and the life-span is shorter.
The utility model content
The technical problem that the utility model mainly solves provides the D.C. contactor of the good and good seal performance of a kind of arc quenching effect.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of D.C. contactor is provided, comprise shell, base, binding post, binding post, moving contact, fixed contact, coil, armature, push rod, spring and permanent magnet, described shell and described base engagement connection are enclosed first cavity; Described binding post and binding post place on the described base; Described first cavity is the colloid seal chamber; Described moving contact, fixed contact, coil, armature, push rod, spring and permanent magnet place in first cavity; Described binding post is electrically connected with described coil, and described armature places in the space that described coil surrounds, described push rod and described armature concentric upper and lower settings; Described spring one end is fixedlyed connected with described base, and the other end of described spring is fixedlyed connected with push rod, and described push rod is fixedlyed connected with moving contact; Described binding post is electrically connected with described fixed contact; Described permanent magnet is fixedlyed connected with described base; Described D.C. contactor also comprises the yoke that is used to strengthen electromagnetism magnetic field, described yoke be arranged in the described cavity and with contact position near moving contact and fixed contact.
Wherein, described D.C. contactor comprises the magnetic conduction sheet that is used for directed magnetic conduction, and described magnetic conduction sheet is enclosed second cavity, and described coil, armature and yoke are positioned at second cavity.
Wherein, described D.C. contactor comprises the nut that is used for fixing external wire, and described nut is arranged on the binding post.
Wherein, described D.C. contactor comprises the liner that is used to make moving contact and push rod insulation, and described moving contact is by the fixedly connected described push rod of liner.
Wherein, described D.C. contactor comprises pin, and described pin is fixedlyed connected with described armature.
The beneficial effects of the utility model are: the D.C. contactor arc extinction performance difference and the waterproof effect defect of bad that are different from prior art, the built-in permanent magnet of the utility model is positioned at quiet contact head assembly below, and by the directed magnetic force that strengthens of the effect of yoke and magnetic conduction sheet, the arc quenching system of the two-way arcing formation of permanent magnet and electromagnet is effective like this, the electric arc that produces when the contact is disconnected elongates and extinguishes, reduce the wearing and tearing that the contact answers arcing to produce, thereby improve the useful life of contactor.
Description of drawings
Fig. 1 is the structure chart of the utility model D.C. contactor embodiment;
Fig. 2 is that the A-A of the utility model D.C. contactor example structure figure is to cutaway view.
Reference numeral is: 1: shell; 2: base; 3: binding post; 4: binding post; 5: moving contact; 6: fixed contact; 7: coil; 8: armature; 9: push rod; 10: spring; 11: permanent magnet; 12: yoke; 13: magnetic conduction sheet; 14: nut; 15: liner; 16: pin.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 1 and Fig. 2, D.C. contactor of the present utility model, comprise shell 1, base 2, binding post 3, binding post 4, moving contact 5, fixed contact 6, coil 7, armature 8, push rod 9, spring 10 and permanent magnet 11, described shell 1 is enclosed first cavity with described base 2 engagement connections, described binding post 3 and binding post 4 place on the described base 2, and a described binding post 3 and binding post 4 parts expose first cavity and another part places in first cavity; Described first cavity is the colloid seal chamber; Described moving contact 5, fixed contact 6, coil 7, armature 8, push rod 9, spring 10 and permanent magnet 11 place in first cavity; Described binding post 3 is electrically connected with described coil 7, and described armature 8 places in the space that described coil 7 surrounds, described push rod 9 and described armature 8 concentric upper and lower settings; Described spring 10 1 ends are fixedlyed connected with described base 2, and the other end of described spring 10 is fixedlyed connected with push rod 9, and described push rod 9 is fixedlyed connected with moving contact 5; Described binding post 4 is electrically connected with described fixed contact 6; Described permanent magnet 11 is fixedlyed connected with described fixed contact 6; Described D.C. contactor also comprises the yoke 12 that is used to strengthen electromagnetism magnetic field, described yoke 12 be arranged in the described cavity and with contact position near moving contact and fixed contact.
Be different from the D.C. contactor arc extinction performance difference and the waterproof effect defect of bad of prior art, the built-in permanent magnet 11 of the utility model is positioned at quiet contact head assembly below, and by the directed magnetic force that strengthens of the effect of yoke 12 and magnetic conduction sheet 13, the arc quenching system of the two-way arcing formation of permanent magnet 11 and electromagnet is effective like this, the electric arc that produces when the contact is disconnected elongates and extinguishes, reduce the wearing and tearing that the contact answers arcing to produce, thereby improve the useful life of contactor.
Operation principle of the present utility model is: coil 7 produces magnetic field after switching on by binding post 3, armature 8 produces magnetic force under the effect of induced field, drives push rod 9 motions, 5 actions of push rod 9 motion drive contacts, contact closure.After coil 7 was by binding post 3 outages, magnetic field disappeared, and push rod 9 moves under the effect of spring 10, and contact disconnects.
The utility model is because of adopting dot encapsulation glue to groove around the frame groove of contactor base 2 and binding post 4, coil 7 inserting terminals, and base 2 is connected with shell 1 employing buckle simultaneously, has so just guaranteed the sealing effectiveness of contactor.
In one embodiment, described D.C. contactor comprises the magnetic conduction sheet 13 that is used for directed magnetic conduction, and described magnetic conduction sheet is enclosed second cavity, and described coil 7, armature 8 and yoke 12 are positioned at second cavity.
In one embodiment, described D.C. contactor comprises the nut 14 that is used for fixing external wire, and described nut 14 is arranged on the binding post 4.
In one embodiment, described D.C. contactor comprises the liner 15 that is used to make moving contact 5 and push rod 9 insulation, and described moving contact 5 is by liner 15 fixedly connected described push rods 9.
In one embodiment, described D.C. contactor comprises pin 16, and described pin 16 is fixedlyed connected with described armature 8.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. D.C. contactor is characterized in that: comprise shell, base, binding post, binding post, moving contact, fixed contact, coil, armature, push rod, spring and permanent magnet,
Described shell and described base engagement connection are enclosed first cavity; Described binding post and binding post place on the described base; Described first cavity is the colloid seal chamber;
Described moving contact, fixed contact, coil, armature, push rod, spring and permanent magnet place in first cavity;
Described binding post is electrically connected with described coil, and described armature places in the space that described coil surrounds, described push rod and described armature concentric upper and lower settings; Described spring one end contacts with described base, and the other end of described spring contacts with push rod, and described push rod is fixedlyed connected with moving contact; Described binding post is electrically connected with described fixed contact; Described permanent magnet is fixedlyed connected with described base;
Described D.C. contactor also comprises the yoke that is used to strengthen electromagnetism magnetic field, described yoke be arranged in the described cavity and with contact position near moving contact and fixed contact.
2. D.C. contactor according to claim 1 is characterized in that: comprise the magnetic conduction sheet that is used for directed magnetic conduction, described magnetic conduction sheet is enclosed second cavity, and described coil, armature and yoke are positioned at second cavity.
3. D.C. contactor according to claim 2 is characterized in that: comprise the nut that is used for fixing external wire, described nut is arranged on the binding post.
4. D.C. contactor according to claim 3 is characterized in that: comprise the liner that is used to make moving contact and push rod insulation, described moving contact is by the fixedly connected described push rod of liner.
5. D.C. contactor according to claim 4 is characterized in that: comprise pin, described pin is fixedlyed connected with described armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206246500U CN201868348U (en) | 2010-11-25 | 2010-11-25 | Direct-current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206246500U CN201868348U (en) | 2010-11-25 | 2010-11-25 | Direct-current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868348U true CN201868348U (en) | 2011-06-15 |
Family
ID=44139496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206246500U Expired - Fee Related CN201868348U (en) | 2010-11-25 | 2010-11-25 | Direct-current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326177A (en) * | 2013-06-03 | 2013-09-25 | 四川永贵科技有限公司 | Magnetic quenching type high voltage electric connector |
| CN105551898A (en) * | 2016-02-18 | 2016-05-04 | 常州市吉士电器有限公司 | Single-pole double-throw DC contactor |
-
2010
- 2010-11-25 CN CN2010206246500U patent/CN201868348U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326177A (en) * | 2013-06-03 | 2013-09-25 | 四川永贵科技有限公司 | Magnetic quenching type high voltage electric connector |
| CN103326177B (en) * | 2013-06-03 | 2016-06-29 | 四川永贵科技有限公司 | A kind of magnetic quenching formula high-voltage electric connector |
| CN105551898A (en) * | 2016-02-18 | 2016-05-04 | 常州市吉士电器有限公司 | Single-pole double-throw DC contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20151125 |