CN212434503U

CN212434503U - Contact switch

Info

Publication number: CN212434503U
Application number: CN202020598280.1U
Authority: CN
Inventors: 曹俊; 戴俊杰
Original assignee: Shanghai Haojue Elevator Accessories Co ltd
Current assignee: Shanghai Haojue Elevator Accessories Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-01-29
Anticipated expiration: 2030-04-20

Abstract

The utility model provides a contact switch, its characterized in that: including contact structure and switch structure, the contact structure includes the protection casing, is equipped with contact, conducting strip, strong separation device, terminal and shell fragment in the protection casing, terminal and shell fragment have two respectively, and the terminal is connected to shell fragment one end, and the contact is connected to the other end, is equipped with the socket that is used for the switch structure to insert on the protection casing, is equipped with the conducting strip between socket and the contact, presses the conducting strip when the switch structure inserts the contact structure, and the contact on two shell fragments passes through the switch-on, and the conducting strip is connected with strong separation device, and strong separation device drives the conducting strip when the switch structure separates with the contact structure and. The utility model discloses a contact structure passes through the protection of protection casing, has improved the switch security, and the protection level reaches IP54, prevents effectively that dust and air humidity from using the influence to the switch, has improved the dustproof and waterproof grade of switch, improves about switch life 48%.

Description

Contact switch

Technical Field

The utility model relates to a contact switch, especially a door lock switch belong to the switch technology field.

Background

At present, the door lock switch has the disadvantages of severe service environment, high humidity and serious dust, which causes the failure of most switches. And analyzing the failure reason, wherein dust falls to the contact part of the switch to increase the resistance of a contact loop of the switch, and the arc of the switch is burnt violently to form open circuit failure. Therefore, the invention of the contact switch is very necessary.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the problem that the protection level can not meet the requirement in the use process of the existing door lock switch is solved.

In order to solve the above problem, the technical scheme of the utility model is to provide a contact switch, its characterized in that: including contact structure and switch structure, the contact structure includes the protection casing, is equipped with contact, conducting strip, strong separation device, terminal and shell fragment in the protection casing, terminal and shell fragment have two respectively, and the terminal is connected to shell fragment one end, and the contact is connected to the other end, is equipped with the socket that is used for the switch structure to insert on the protection casing, is equipped with the conducting strip between socket and the contact, presses the conducting strip when the switch structure inserts the contact structure, and the contact on two shell fragments passes through the switch-on, and the conducting strip is connected with strong separation device, and strong separation device drives the conducting strip when the switch structure separates with the contact structure and.

Preferably, the number of the contacts is four, and each spring plate is provided with two contacts.

Preferably, the protective cover is provided with a mounting hole for fixing the contact switch.

Preferably, the part of the switch structure, which is connected with the contact structure, is a U-shaped contact.

Preferably, the conductive sheet is a silver or silver alloy composite sheet.

Preferably, the protective cover is provided with a clamping groove for installing a strong separation device, the strong separation device is a bending piece, the bending direction of the bending piece faces the direction of the U-shaped contact piece accessing the contact structure, and the bending piece is connected with the conducting strip through a rotating shaft.

Preferably, the protective cover is made of plastic.

Preferably, the contacts are riveted to the spring plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the contact structure of the utility model is protected by the protective cover, the finger at the wiring position is prevented from touching the switch loop, the switch safety is improved, the protection grade reaches IP54, the influence of dust and air humidity on the use of the switch is effectively prevented, the dustproof and waterproof grade of the switch is improved, and the service life of the switch is prolonged by about 48%; each group of the elastic sheets comprises two contacts, the two contacts work independently, and after one contact fails, the rest contacts can still ensure the stable work of the switch, so that the use safety of the switch is improved.

Drawings

Fig. 1 is a schematic diagram of a contact switch according to the present invention.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a contact switch, including contact structure 1 and switch structure 2, contact structure 1 includes contact 11, conducting strip 12, strong disengaging gear 13, terminal 15 and protection casing 17, conducting strip 12 is silver or silver alloy composite sheet, the protection casing is PC or other plastics, protective casing 17 is last to run through and process two mounting holes 14 that fixed contact switch used, contact 11, conducting strip 12, strong disengaging gear 13 and terminal 15 are installed in protection casing 17, terminal 15 and shell fragment 16 have two respectively, contact 11 has four, shell fragment 16 one end connects terminal 15, the other end rivets two contacts 11, protective casing 17 is last to be processed and is used for the socket that switch structure 2 inserts, switch structure 2 sets up the upper portion position at contact structure 1, switch structure 2 adopts bakelite bearing structure, the head contains U type contact, be equipped with 12 between socket and contact 11, conducting strip 12 establishes the top at contact 11 on two shell fragments 16, conducting strip 12 is pressed to U type contact when switch structure 2 inserts contact structure 1's socket, contact 11 on two shell fragments 16 passes through conducting strip 12 switch-on, conducting strip 12 is connected with strong disengaging gear 13, strong disengaging gear 13 is installed in the top of conducting strip 12, be equipped with the draw-in groove that is used for installing strong disengaging gear 13 on the protection casing 17, strong disengaging gear 13 is the piece of bending, the direction of bending of the piece of bending inserts contact structure 1 towards the U type contact, connect through the pivot between piece of bending and the conducting strip 12, strong disengaging gear 13 drives conducting strip 12 when switch structure 2 separates with contact structure 1 and makes conducting strip 12 and contact 11 break off.

The utility model discloses when using, at first, two terminals 15 of contact structure 1 in the contact switch are connected with external circuit, and two terminals 15 are through two shell fragments 16, two contacts 11 contact conducting strips 12 above every shell fragment 16 of rethread, make through the connection of conducting strip 12 and form the return circuit between two terminals 15, and the switch switches on circuit current direction: terminal-spring-contact-conducting strip-contact-spring-terminal; secondly, when the switch structure 2 is pressed down to the contact structure 1, the conducting strip 12 is contacted with the contact 11 to form a conducting loop, and the bending piece of the strong separation device is driven to rotate clockwise along the rotating shaft and is buckled in the U-shaped contact piece of the switch structure 2 in the process that the conducting strip 12 moves down; when the switch structure 2 leaves the contact structure 1, the conducting strip 12 and the contact 11 are disconnected to form an open circuit, the U-shaped contact piece drives the bending piece to rotate anticlockwise along the rotating shaft, the strong separation device generates upward force in the rotating process, the conducting strip 12 is pulled away from the surface of the contact 11, and the conducting strip 12 and the contact 11 are separated forcibly.

Claims

1. A contact switch, characterized by: including contact structure (1) and switch structure (2), contact structure (1) is equipped with contact (11), conducting strip (12), strong separator (13), terminal (15) and shell fragment (16) including protection casing (17) in protection casing (17), terminal (15) and shell fragment (16) have two respectively, terminal (15) are connected to shell fragment (16) one end, contact (11) are connected to the other end, be equipped with the socket that is used for switch structure (2) to insert on protection casing (17), be equipped with conducting strip (12) between socket and contact (11), press conducting strip (12) when switch structure (2) inserts contact structure (1), contact (11) on two shell fragments (16) are put through conducting strip (12), conducting strip (12) are connected with strong separator (13), strong separator (13) drive conducting strip (12) when switch structure (2) and contact structure (1) separate make conducting strip (12) and contact (11) break off .

2. A contact switch as claimed in claim 1, wherein: the number of the contacts (11) is four, and two contacts (11) are arranged on each elastic sheet (16).

3. A contact switch as claimed in claim 1, wherein: and the protective cover (17) is provided with a mounting hole (14) for fixing the contact switch in a penetrating way.

4. A contact switch as claimed in claim 1, wherein: the part of the switch structure (2) communicated with the contact structure (1) is a U-shaped contact element.

5. A contact switch as claimed in claim 1, wherein: the conductive sheet (12) is a silver or silver alloy composite sheet.

6. A contact switch as claimed in claim 1, wherein: the protective cover (17) is provided with a clamping groove for installing the strong separation device (13), the strong separation device (13) is a bending piece, the bending direction of the bending piece faces the direction of the U-shaped contact piece accessing into the contact structure (1), and the bending piece is connected with the conducting strip (12) through a rotating shaft.

7. A contact switch as claimed in claim 1, wherein: the protective cover (17) is made of plastic.

8. A contact switch as claimed in claim 1, wherein: the contact (11) is riveted on the elastic sheet (16).