CN203931954U - A kind of contactor - Google Patents
A kind of contactor Download PDFInfo
- Publication number
- CN203931954U CN203931954U CN201420229580.7U CN201420229580U CN203931954U CN 203931954 U CN203931954 U CN 203931954U CN 201420229580 U CN201420229580 U CN 201420229580U CN 203931954 U CN203931954 U CN 203931954U
- Authority
- CN
- China
- Prior art keywords
- contact
- joint cover
- moving
- moving joint
- contactor
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 230000003068 static effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model relates to a kind of contactor.Comprise electromagnetic system, contact system and terminals, described contact system comprises moving contact and fixed contact, described moving contact comprises moving joint cover and a pair of moving contact that is arranged on moving joint cover two ends, described moving joint cover and moving iron core are connected, and the edge of described moving joint cover is provided with and to the back side, extends heat radiation shirt rim.Due to the contact of the utility model contactor, to be embedded in moving joint cover positive, so the contact resistance between contact and moving joint cover greatly reduces; Another aspect, owing to being provided with the elastic component of moving joint cover being pushed to the first side of stationary contact, when moving contact contacts with fixed contact, pressure increases, further reduced contact resistance, edge due to described moving joint cover is provided with to extension heat radiation shirt rim, the back side simultaneously, conduct electricity very well, perfect heat-dissipating, thermal capacity be large, effectively controlled temperature rise, and rated current capacity can greatly be improved.
Description
Technical field
The utility model relates to a kind of low voltage component, specifically a kind of contactor.
Background technology
Contactor is the common low voltage component of a class, of many uses, is often applied at a distance, connects continually and the electrical equipment of disjunction AC and DC main circuit and large volume controlled circuit.Its main control object is motor, also can be used as controlling the electrical loads such as electroheat equipment, electric lighting, electric welding machine and capacitor group.Contactor mainly contains four parts and forms: (1) electromagnetic system, comprises solenoid, moving iron core and static iron core; (2) contact system, comprises that three groups of main contacts and one to two group are often opened, normally closed auxiliary contact, the interlock mutually that connects together of it and moving iron core, and described contact comprises metal compounds plate and a pair of contact that is arranged on joint cover two ends; (3) arc-control device, the general larger A.C. contactor of capacity is all provided with arc-control device, so that rapid breaking arc avoids burning out main contact; (4) insulation crust and annex, various springs, transmission mechanism, short-circuited conducting sleeve, terminals etc., outside electrical equipment is connected on terminals by connecting wire.The rated operational current of probe of contactor is a very important index, directly represent performance and an energy occasion of using of contactor, therefore the rated operational current that promotes probe of contactor is very significant, but the metal compounds plate of existing probe of contactor is generally a copper sheet, riveting contacts is at joint cover two ends, between contact and joint cover, contact resistance is larger, when passing through, electric current easily produces heat, joint cover area of dissipation is less, be difficult for heat radiation, cause rated current capacity to be difficult to increase.
Summary of the invention
The purpose of this utility model be for overcome the deficiencies in the prior art provide a kind of rated operational current larger contactor.
In order to achieve the above object, the utility model provides a kind of contactor, comprise electromagnetic system, contact system and terminals, described contact system comprises moving contact and fixed contact, described moving contact comprises moving joint cover and a pair of moving contact that is arranged on moving joint cover two ends, fixed contact comprises static connection plate and fixed contact, described moving joint cover and moving iron core are connected, it is characterized in that: described moving contact is embedded in moving joint cover front, the edge of described moving joint cover is provided with and to the back side, extends heat radiation shirt rim, and form overleaf cavity, described cavity bottom is provided with a pair of perforation, described moving joint cover support is provided with corresponding a pair of leg, described leg matched in clearance is put in cavity through described perforation, described leg is provided with elastic component and pushes described moving joint cover to stationary contact first side.
As further setting of the present utility model, described terminals are provided with an above set bolt and bolt hole, and three set bolts and bolt hole are preferably set.
Compared with prior art, because the contact of the utility model contactor is embedded in moving joint cover front, so the contact resistance between contact and moving joint cover greatly reduces; Another aspect, due to the elastic component of moving joint cover being pushed to the first side of stationary contact being set in cavity, when moving contact contacts with fixed contact, pressure increases, further reduced contact resistance, edge due to described moving joint cover is provided with to extension heat radiation shirt rim, the back side simultaneously, conduct electricity very well, perfect heat-dissipating, thermal capacity be large, effectively controlled temperature rise, and rated current capacity can greatly be improved.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model specific embodiment internal structure cutaway view;
Accompanying drawing 2 is the utility model specific embodiment vertical view;
Accompanying drawing 3 is the utility model specific embodiment removal shell vertical view;
Accompanying drawing 4 is one of the utility model moving contact specific embodiment perspective view;
Accompanying drawing 5 is two of the utility model moving contact specific embodiment perspective view.
Embodiment
As Fig. 1, shown in 2, contactor comprises shell 1, electromagnetic system, contact system and terminals 2, described contact system comprises moving contact 3 and fixed contact 4, described moving contact 3 comprises moving joint cover 301 and a pair of moving contact 302 that is arranged on moving joint cover 301 two ends, fixed contact 4 comprises static connection plate 401 and fixed contact 402, described moving joint cover 301 is connected with moving iron core, described moving contact 302 is embedded in moving joint cover 301 fronts, as Fig. 4, shown in 5, the edge of described moving joint cover 301 is provided with and to the back side, extends heat radiation shirt rim 303, and form overleaf cavity, described cavity bottom is provided with a pair of perforation 304, preferably be arranged on the centre position of moving joint cover 301, moving joint cover support 5 is provided with corresponding a pair of leg 501, described leg 501 matched in clearance are passed described perforation 304 to cavity, joint cover 301 and moving joint cover support 5 can be relatively moved, described leg 501 is provided with elastic component 6 and pushes described moving joint cover 301 to fixed contact 4 one sides.In this specific embodiment, described moving joint cover support 5 is made by ambroin, be arranged between a pair of fixed contact 4, described a pair of leg 501 is vertically set on the top of moving joint cover support 5, the a pair of perforation 304 of described cavity bottom, mutual spacing and leg 501 spacing match, described moving joint cover 301 matches with leg 501 by cavity bottom perforated 304 and is arranged on moving joint cover support 5 tops, between described a pair of leg 501, be provided with connecting pin 502, as shown in Figure 3, described elastic component 6 consists of metallic spring, described spring leaf shape and cavity are suitable, be arranged on the below in cavity and in connecting pin 502, in the middle of spring leaf, be arch and be against on connecting pin 502, spring leaf two ends are flexibly pressed in cavity bottom and push described moving joint cover 301 to fixed contact 4 one sides (described elastic component 6 also can be located on connecting pin 502 and be formed by torsion spring set).In order further to reduce the contact resistance of wiring part, on described terminals 2, be preferably provided with an above set bolt 7 and bolt hole, in this specific embodiment, be provided with three set bolts 7 and bolt hole, distribution triangular in shape, this set can be so that during wiring, the contact area of wire and terminals 2 is larger, has reduced contact resistance, has reduced temperature rise.
Claims (3)
1. a contactor, comprise electromagnetic system, contact system and terminals, described contact system comprises moving contact and fixed contact, described moving contact comprises moving joint cover and a pair of moving contact that is arranged on moving joint cover two ends, fixed contact comprises static connection plate and fixed contact, described moving joint cover and moving iron core are connected, it is characterized in that: described moving contact is embedded on moving joint cover front, the edge of described moving joint cover is provided with and to the back side, extends heat radiation shirt rim, and form overleaf cavity, described cavity bottom is provided with a pair of perforation, described moving joint cover support is provided with corresponding a pair of leg, described leg matched in clearance is put in cavity through described perforation, described leg is provided with elastic component and pushes described moving joint cover to stationary contact first side.
2. contactor according to claim 1, is characterized in that: described terminals are provided with an above set bolt and bolt hole.
3. contactor according to claim 2, is characterized in that: described terminals are provided with three set bolts and bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229580.7U CN203931954U (en) | 2014-05-06 | 2014-05-06 | A kind of contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229580.7U CN203931954U (en) | 2014-05-06 | 2014-05-06 | A kind of contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931954U true CN203931954U (en) | 2014-11-05 |
Family
ID=51827725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229580.7U Expired - Lifetime CN203931954U (en) | 2014-05-06 | 2014-05-06 | A kind of contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465154A (en) * | 2014-12-12 | 2015-03-25 | 贵州长征开关制造有限公司 | Contact module of double-breakpoint air circuit breaker |
-
2014
- 2014-05-06 CN CN201420229580.7U patent/CN203931954U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465154A (en) * | 2014-12-12 | 2015-03-25 | 贵州长征开关制造有限公司 | Contact module of double-breakpoint air circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term |