CN2103199U

CN2103199U - See-saw outer magnetic type waterproof explosion protection power switch

Info

Publication number: CN2103199U
Application number: CN 91228056
Authority: CN
Inventors: 姚士欣
Original assignee: HUALI HOUSEHOLD ELECTRICAL EQUIPMENT CO Ltd ZHEJIANG PROV
Current assignee: HUALI HOUSEHOLD ELECTRICAL EQUIPMENT CO Ltd ZHEJIANG PROV
Priority date: 1991-11-12
Filing date: 1991-11-12
Publication date: 1992-04-29

Abstract

The utility model relates to a power switch which comprises a sealed switch body and a divided magnetic draw piece. The intra-action contact of the switch body gangs with a set of U glyph magnetic substance and is controlled by other teetertotter-shaped group of U glyph magnetic substance out of the switch body, which structures integration with the stationary contact and the terminal out of the case and becomes a teetertotter-shaped outboard magnetic-type power switch of water and explosion proof. The switch has the advantages of minitype, safety, low cost, long usage time, which is suitable for the power switch of indoor lighting and the electrical control gear of industrial and mining establishment.

Description

See-saw outer magnetic type waterproof explosion protection power switch

The waterproof anti-explosion switch that it is seesaw type mechanism that the utility model relates to a kind of external magnetic type switch, particularly mode of operation.

At present, known mains switch generally is flexible type mechanical switch and electromagnetic switch, owing to there is configuration aspects, their control contact is exposed in the natural air of circulation to some extent, can't realize the waterproof anti-explosion function.The generation of external magnetic type mains switch has solved the waterproof anti-explosion feasibility on the principle, but in application owing to placed restrictions on by volume and economy etc., magnetic flux density is little, electrical performance indexes is not high, restricted application.

The purpose of this utility model provides a kind of see-saw type external magnetic type waterproof anti-explosion mains switch, and it has not only improved the magnetic flux density of controlled magnet, increased the operating pressure of control contact, electrical performance indexes is improved, and has dwindled volume, solved economy, practicality problem.

The purpose of this utility model is achieved in that in the insulation crust of switch main body two blocks of magnet are gripped connection by magnetic, forms U font magnetic.The magnetic polarity of their working faces is opposite, the magnetic lower end conductive contact film that links to each other, and riveting has silver contact below the contact chip two ends, and middle conducting rod links to each other with binding post.Assembly is that axis controlled another group U font magnet control (calling upper magnet in the following text) outside main body can swing up and down with the conducting rod; Last magnetic is also gripped by magnetic by two blocks of magnet and is formed the U font structure, their working face polarity is opposite, last magnetic is assemblied in the button shell, respectively there is a rotation axis center, top of button, button assembly is contained in main body cover top, magnetic is opposite with main body last magnetic polarity outward in the main body cover, in correspondence with each other.When the magnetic outside the main body is made seesaw movements owing to influenced by magneticaction, force the also action thereupon of magnetic in the main body, drive the movable contact on the contact chip, finish with the contact of fixed contact with separate two states; It is the function of " breaking " " leading to " in the electrical control.Because the main body insulation crust is that envelope is close, the spark that electric current of make-and-break causes effectively is isolated in the insulation crust, and the waterproof anti-explosion function of switch also is guaranteed.The magnet of two groups of magnetic two ends is made by permanent magnetic material alumal or Ferrite Material, and magnetic is gripped by the blunt iron formula of soft magnetic material ferrite and made.

Owing to adopt such scheme, improved the magnetic flux density of magnetic working face, increased the contact contact pressure, reduce contact resistance, made it to adapt to the control of big electric current, improved the electrical performance indexes of switch greatly, simultaneously also dwindle small product size, reduced product cost.

This switch is widely used in family expenses and similar applications lighting switch and industrial and mining enterprises' electrical control gear.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is an electrical schematic diagram.

Fig. 2 is a structural representation of the present utility model:

Among the figure:

1. control rotating shaft 2. button shells 3. magnet 4. magnet

5. magnetic is gripped 6. conducting strips, 7. contacts, 8. main body covers

9. conducting ring 10. fixed contacts 11. binding posts 12. binding posts

13. 16. contacts, binding post 14. link cover of FIG, 15. contacts

17. magnet 18. magnet 19. magnetic are gripped

In Fig. 2, magnet (17), magnet (4), be combined in magnetic and grip (5) two ends, polarity is different, and the face of magnetizing is close to magnetic and is gripped and be subjected on the magnetic surface, and magnetic is gripped by soft magnetic material and is made, lower magnet shape facility after the combination such as U word.Equally, magnet in upper magnet (3), magnet (4) are combined in the two ends that magnetic is gripped (19), and polarity is respectively known different, and the face of magnetizing is close to magnetic and is gripped and be subjected on the magnetic recording level face shape facility such as U word.Conducting ring (9) is the rotation axis of magnetic body, is again the electrical connection part in addition of binding post (12), and contact (7), contact (16) riveted be in conducting strip (6) bottom, two ends, and fuses with the lower magnet body, becomes controlled moving contact.

Link cover of FIG (14) coat all around gluing after, be glued in the main body cover (8), will go up magnetic shell (2), the rotating shaft on the both sides, inject (note corresponding) in main body cover two holes with N, the S polarity of lower magnet complete mains switch.

Claims

1, a kind of see-saw type external magnetic type waterproof anti-explosion mains switch in the close main body insulation crust of envelope, can be made the magnetic of seesaw activity for one and link to each other with moving contact on the conducting strip, and it is relative with fixed contact on the binding post, the rotation axis of outer another group upper magnet shell of main body is contained in main body cover top

It is characterized in that magnetic in the main body cover is gripped by magnetic by two blocks of magnet forms the U font structure, the polarity of their working faces is different, the upper magnet of main body cover is also gripped by magnetic by two blocks of magnet and is formed the U font, the polarity of working face also is different, the polarity N of two groups of magnetics, S are corresponding with SN, and the contact of described moving contact and fixed contact is to realize by the magneticaction between magnetic with separating.

2, mains switch according to claim 1 is characterized in that magnetic center in the main body cover is made up of a conducting rod and contact chip can be dynamically connected and be electrically connected with the binding post of main body cover.

3, according to claim 1, it is characterized in that the magnet of two groups of magnetic two ends, to make by permanent magnetic material alumal or Ferrite Material, magnetic is gripped by the blunt iron formula of soft magnetic material ferrite and is made.