CN203085451U - Contactor with normally-closed contact assembly - Google Patents
Contactor with normally-closed contact assembly Download PDFInfo
- Publication number
- CN203085451U CN203085451U CN 201220656231 CN201220656231U CN203085451U CN 203085451 U CN203085451 U CN 203085451U CN 201220656231 CN201220656231 CN 201220656231 CN 201220656231 U CN201220656231 U CN 201220656231U CN 203085451 U CN203085451 U CN 203085451U
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- CN
- China
- Prior art keywords
- assembly
- contactor
- contact assembly
- loam cake
- moving contact
- 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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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a contactor with a normally-closed contact assembly. The contactor comprises a shell, an upper cover covered on the shell, the contact assembly, a return spring, and an electromagnetic assembly, wherein the contact assembly is normally-closed and comprises a static contact assembly and a moving contact assembly; the static contact assembly is mounted on the upper cover in a sealed and fixed manner through a sealing ring; the moving contact assembly is connected with the electromagnetic assembly in a manner that the moving contact assembly can move up and down; the two ends of the return spring are respectively abutted against the upper cover and the moving contact assembly; a clamping groove is arranged at a position wherein the shell contacts with the upper cover; and the clamping groove is internally equipped with the waterproof sealing ring. The contactor is advantaged by being compact in structure, good in waterproof and dustproof effect, and the like.
Description
Technical field
The utility model relates to a kind of electromagnetic switch, is specially a kind of contactor with normally closed interlock assembly.
Background technology
Contactor is a kind of automation switch that is used for being switched on or switched off load-carrying alternating current-direct current main circuit or big volume controlled circuit; major control is to liking motor; and as electric heater; electric welding machine; other electrical loads such as lighting apparatus; it can not only connect and cut off circuit, but also has the effect of low-voltage release guard.But the environment that contactor often uses is relatively poor, makes moist wet and effect of dust and cause its inside contact loose contact or life-span to reduce through regular meeting, and existing in addition contactor is because unreasonable structure, causes space itself that occupy bigger.
Summary of the invention
At the deficiencies in the prior art, the contactor that be necessary to provide a kind of compact conformation, prevent dust, moisture effect is good.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of contactor with normally closed interlock assembly, the loam cake, contact assembly, return spring, the electromagnetic assembly that comprise housing, cover with housing, wherein, described contact assembly is the normally closed interlock assembly, described contact assembly comprises fixed contact assembly, moving contact component; Described fixed contact assembly is installed on by the sealing ring sealing and fixing and covers; What described moving contact component moved up and down links to each other with electromagnetic assembly; Described return spring two ends are respectively against loam cake and moving contact component; The contact site of described housing and loam cake is provided with draw-in groove, in the described draw-in groove waterproof grommet is installed.
Above-mentioned contactor is installed by modular construction, make simple in structure, installation is convenient and self is more compact, reduces contactor and takes up room, and improves its electric property simultaneously.As everyone knows, the object of band point adsorbs subtitle substance easily, as water droplet and dust.By in fixed contact assembly and cover assembly, sealing ring being set, and at housing and the loam cake installation contact position waterstop ring of setting up defences, contactor inside contact assembly and electromagnetic assembly are under the environment that seals relatively, make it possess better dustproof, water resistance, can make this contactor be applicable to more complex environment, perhaps under the constant prerequisite of environment for use, can improve contactor useful life.In addition, also can improve the safety in utilization of itself.
Be improved to the basis with first kind, to be fixed contact assemblies by nut compress to be installed in its second kind of improved characteristic covers on described.So can make the fixed contact assembly more tight, have better sealing property with contacting of loam cake.
Be improved to the basis with second kind, its third improvement characteristics are that moving contact component comprises a positioning convex that is used to make the return spring location.So can make return spring be unlikely in constantly flexible process, to depart from predeterminated position, is provided useful life.
Be improved to the basis with the third, the 4th kind of improved characteristics are also to comprise the metal stator, its by screw in described hull outside.Contactor is installed on the extraneous parts more easily.
Be improved to the basis with the above-mentioned four kinds, the 5th kind of improved characteristics are to be provided with insulating trip between loam cake and the housing.So can make contact not influence electromagnetic assembly, play the arc effect at the electric arc that contact produces when separating.
Be improved to the basis with the 5th kind, the 6th kind of improved characteristics cover on being and are provided with two Binding post/studs, and described electromagnetic assembly links to each other with described Binding post/stud by lead-in wire.Electromagnetic assembly is connected with extraneous power supply, can makes that also contactor construction is more compact simultaneously.
Be improved to the basis with the 6th kind, the 7th kind of improved characteristics are that described lead-in wire and Binding post/stud are weldingly connected.So can reduce immobilization material, also improve the fixed performance of lead-in wire and binding post.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the front view of contactor;
Fig. 2 is the left view of contactor;
Fig. 3 is the vertical view of contactor;
Fig. 4 is the internal structure explosive view of contactor.
Housing-100; Loam cake-200; Contact assembly-300; Return spring-400; Electromagnetic assembly-500; Metal stator-600; Insulating trip-700; Draw-in groove-110; Waterproof grommet-120; Binding post/stud-210; Fixed contact assembly-310; Moving contact component-320; Sealing ring-330.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, further the utility model is described in detail below in conjunction with embodiment and accompanying drawing:
Referring to Fig. 1～Fig. 3, shown in the figure is a kind of embodiment of contactor described in the utility model, and it can be used for Control current and surpasses above relay of 10A and the alternating current motor that some are common.Above-mentioned application only is nonrestrictive exemplifying, and should know that it also can be used to be switched on or switched off the automation switch of load-carrying alternating current-direct current main circuit or the big volume controlled circuit of conduct.
Referring to Fig. 1～Fig. 4, loam cake 200, contact assembly 300, return spring 400, electromagnetic assembly 500 that the contactor shown in the figure comprises housing 100, covers with housing, described contact assembly 300 comprises fixed contact assembly 310, moving contact component 320; Described fixed contact assembly 310 is installed on the loam cake 200 by sealing ring 330 sealing and fixing; Described moving contact component 320 is that move up and down to link to each other with electromagnetic assembly 500; Described return spring 400 two ends are respectively against loam cake 200 and moving contact component 320; , described housing 100 is provided with draw-in groove 110 with the contact site of loam cake 200, in the described draw-in groove 110 waterproof grommet 120 is installed.
As a kind of optimal way, fixed contact assembly 310 compresses by nut and is installed on the described loam cake 200.So can make fixed contact assembly 310 more tight, have better sealing property with contacting of loam cake 200.
As a kind of optimal way, this moving contact component 320 comprises a positioning convex 311 that is used to make return spring location 400.So can make return spring 400 be unlikely in constantly flexible process, to depart from predeterminated position, is provided useful life.
As a kind of optimal way, this contactor also comprises metal stator 600, its by screw in described housing 100 outsides.Contactor is installed on the extraneous parts more easily.
As a kind of optimal way, be provided with insulating trip 700 between this loam cake 200 and the housing 100.So can make contact not influence electromagnetic assembly, play the arc effect at the electric arc that contact produces when separating.
As a kind of optimal way, this loam cake 200 is provided with two Binding post/studs 210, and described electromagnetic assembly 500 links to each other with described Binding post/stud 210 by lead-in wire.Electromagnetic assembly 500 is connected with extraneous power supply, can makes that also contactor construction is more compact simultaneously.As a kind of optimal way, this lead-in wire and Binding post/stud 210 are weldingly connected.So can reduce immobilization material, also improve the fixed performance of lead-in wire and Binding post/stud 210.
When above-mentioned contactor is not worked, the fixed contact assembly 310 and moving contact component 320 closures of contactor, when Binding post/stud 210 energized, electromagnetic assembly 500 energisings produce magnetic force, the yoke of this electromagnetic assembly 500 produces electromagnetic attraction to the armature on the moving contact component 320, thereby the active force that makes moving contact component 320 overcome return spring 400 moves downward, fixed contact assembly 310 disconnects with moving contact component 320, promptly changed the on-state between the contact assembly 300, thereby reach the working power purpose of other outside electrical equipment of control, promptly can realize controlling high pressure with safe voltage.
By the description of the foregoing description, we can know clearly that above-mentioned contactor installs by modular construction, make simple in structure, installation is convenient and self is more compact, reduces contactor and takes up room, and improves its electric property simultaneously.As everyone knows, the object of band point adsorbs subtitle substance easily, as water droplet and dust, by in fixed contact assembly 310 and loam cake 200, sealing ring being set, and at the housing 100 and the installation contact position of loam cake 200 waterstop ring 120 of setting up defences, contactor inside contact assembly 300 and electromagnetic assembly 500 are under the environment that seals relatively, make it possess better dustproof, water resistance, can make this contactor be applicable to more complex environment, perhaps under the constant prerequisite of environment for use, can improve contactor useful life.In addition, also can improve the safety in utilization of itself.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. contactor with normally closed interlock assembly, comprise housing, with loam cake, contact assembly, return spring, electromagnetic assembly that housing covers, it is characterized in that: described contact assembly is the normally closed interlock assembly, comprises fixed contact assembly, moving contact component; Described fixed contact assembly is installed on by the sealing ring sealing and fixing and covers; What described moving contact component moved up and down links to each other with electromagnetic assembly; Described return spring two ends are respectively against loam cake and moving contact component; The contact site of described housing and loam cake is provided with draw-in groove, in the described draw-in groove waterproof grommet is installed.
2. contactor according to claim 1 is characterized in that: described fixed contact assembly compresses to be installed in by nut and covers on described.
3. contactor according to claim 1 is characterized in that: described moving contact component comprises a positioning convex that is used to make the return spring location.
4. according to any described contactor of claim 1～3, it is characterized in that: also comprise the metal stator, its by screw in described hull outside.
5. contactor according to claim 4 is characterized in that: be provided with insulating trip between described loam cake and the housing.
6. contactor according to claim 5 is characterized in that: cover on described and be provided with two Binding post/studs, described electromagnetic assembly links to each other with described Binding post/stud by lead-in wire.
7. contactor according to claim 6 is characterized in that: described lead-in wire and Binding post/stud are weldingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656231 CN203085451U (en) | 2012-11-28 | 2012-11-28 | Contactor with normally-closed contact assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656231 CN203085451U (en) | 2012-11-28 | 2012-11-28 | Contactor with normally-closed contact assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203085451U true CN203085451U (en) | 2013-07-24 |
Family
ID=48831267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656231 Expired - Fee Related CN203085451U (en) | 2012-11-28 | 2012-11-28 | Contactor with normally-closed contact assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203085451U (en) |
-
2012
- 2012-11-28 CN CN 201220656231 patent/CN203085451U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20131128 |