CN211376473U

CN211376473U - High and low temperature resistant microswitch

Info

Publication number: CN211376473U
Application number: CN201921812214.3U
Authority: CN
Inventors: 赵百谦; 周明幸
Original assignee: Xuancheng Longhua Electron Co ltd; WENZHOU LONGHUA DAILY ELECTRONICS CO Ltd
Current assignee: Xuancheng Longhua Electron Co ltd; WENZHOU LONGHUA DAILY ELECTRONICS CO Ltd
Priority date: 2019-10-26
Filing date: 2019-10-26
Publication date: 2020-08-28
Anticipated expiration: 2029-10-26

Abstract

The utility model discloses a high and low temperature resistant micro-gap switch, including support, contact, spring, plug, cushion block, packing ring, nut, first wiring foot and second wiring foot, the middle part of plug is equipped with annular flange, and one end of plug is fastened by the nut after passing cushion block, second wiring foot, packing ring, support in proper order, and first wiring foot is fixed in the cushion block opposite side for second wiring foot, contact and spring housing are in the plug outside, and the contact is fixed and the electrically conductive connection of first wiring foot through the spring, and the contact keeps even clearance under the spring force effect with between the plug; the utility model discloses a resistant high, low temperature micro-gap switch has utilized the deformation characteristic of spring, produces the perception to the slight effort that comes from arbitrary direction, has accomplished to have 360 no dead angle oligodynamic trigger functions.

Description

High and low temperature resistant microswitch

Technical Field

The utility model belongs to the switch field especially relates to a resistant high, low temperature micro-gap switch.

Background

At present, micro switches are various in types, but only achieve force of more than 1N, have no response to force of less than 0.1N, have certain requirements on the direction of the force, and cannot be triggered at 360 degrees without dead angles.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to overcome the defects of the prior art that the switch has small temperature-resistant range, is insensitive to external force reaction, has limitations to the stress direction and the like, and provides a switch which can be used in the environment of-70-500 ℃ and has a 360-degree dead-angle-free micro-power triggering function.

The utility model discloses a high, low temperature resistant micro-gap switch, including support, contact, spring, plug, cushion, packing ring, nut, first wiring foot and second wiring foot, the middle part of plug is equipped with annular flange, and one end of plug is fastened by the nut after passing cushion, second wiring foot, packing ring, support in proper order, and second wiring foot is connected with the plug electrically conductively; the cushion block and the gasket are made of insulating materials, the first wiring pin is fixed on the other side of the cushion block relative to the second wiring pin, the contact and the spring are sleeved on the outer side of the core rod, the contact is fixed and in conductive connection with the first wiring pin through the spring, the spring and the core rod are coaxially arranged and separated from each other, and a uniform gap is kept between the contact and the core rod under the action of the elastic force of the spring; the contact, the spring and the first wiring pin are connected into a circuit, the core rod and the second wiring pin are connected into another circuit, when the contact is acted by external force in any direction, the spring deforms, and the core rod is contacted with the inner hole wall of the contact, so that the first wiring pin and the second wiring pin are communicated.

Further, the cushion block is made of ceramics; the first wiring pin, the second wiring pin, the spring, the contact and the core rod are made of copper or iron; has good high and low temperature resistance, and can be normally used in the environment of-70 ℃ to 500 ℃.

Furthermore, first wiring foot is fixed with the cushion through four claws that collude, and four claws joint that collude are fixed at the lateral wall of cushion, and the lateral wall of cushion corresponds colludes the claw and sets up the draw-in groove, makes collude the claw joint in the draw-in groove, colludes claw and first wiring foot integrated into one piece, realizes the fixed positioning of first wiring foot.

Further, be equipped with axial boss on the cushion, this boss supports the terminal surface that leans on at the annular flange at plug middle part, is equipped with the epitaxial cover that encircles in the boss outside on the first wiring foot, the spring stretches into in the annular gap between epitaxial cover and the boss and fixes the inner wall at epitaxial cover, boss and cushion integrated into one piece, epitaxial cover and first wiring foot integrated into one piece, the excircle diameter of boss is greater than the external diameter of annular flange, consequently the spring mounting can form the clearance naturally between and the plug when in the clearance between boss and the epitaxial cover, avoids the unusual contact under the non-exogenic action.

Furthermore, the outer end of the core rod is of a ball head structure, the inner hole of the contact is correspondingly of an inner spherical surface, and the outer surface of the contact is also of a ball head structure.

The utility model has the advantages that: the utility model discloses a resistant high, low temperature micro-gap switch has utilized the deformation characteristic of spring, produces the perception to the slight effort that comes from arbitrary direction, has accomplished to have 360 no dead angle oligodynamic trigger functions.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a perspective view of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1 and 2: the high and low temperature resistant microswitch comprises a support 7, a contact 1, a spring 2, a core rod 3, a cushion block 4, a gasket 5, a nut 6, a first wiring pin 8 and a second wiring pin 9, wherein an annular flange is arranged in the middle of the core rod 3, one end of the core rod 3 penetrates through the cushion block 4, the second wiring pin 9, the gasket 5 and the support 7 in sequence and then is fastened by the nut 6, and the second wiring pin 9 is in conductive connection with the core rod 3; the cushion block 4 and the gasket 5 are made of insulating materials, the first wiring pin 8 is fixed on the other side of the cushion block 4 relative to the second wiring pin 9, the contact 1 and the spring 2 are sleeved on the outer side of the core rod 3, the contact 1 is fixed and in conductive connection with the first wiring pin 8 through the spring 2, the spring 2 and the core rod 3 are coaxially arranged and separated from each other, and the contact 1 and the core rod 3 keep a uniform gap under the elastic force action of the spring 2; the contact 1, the spring 2 and the first wiring pin 8 are connected into a circuit, the core rod 3 and the second wiring pin 9 are connected into another circuit, when the contact 1 is acted by external force in any direction, the spring 2 deforms, the core rod 3 is contacted with the inner hole wall of the contact 1, and the first wiring pin 8 is communicated with the second wiring pin 9.

In this embodiment, the cushion block 4 is made of ceramic; the first wiring pin 8, the second wiring pin 9, the spring 2, the contact 1 and the core rod 3 are made of copper or iron; has good high and low temperature resistance, and can be normally used in the environment of-70 ℃ to 500 ℃.

In this embodiment, first wiring foot 8 colludes the claw through four and is fixed with cushion 4, and four collude the claw joint and fix at the lateral wall of cushion 4, and the lateral wall of cushion 4 corresponds colludes the claw and sets up the draw-in groove, makes collude the claw joint in the draw-in groove, colludes claw and 8 integrated into one piece of first wiring foot, realizes the fixed positioning of first wiring foot 8.

In this embodiment, an axial boss 11 is arranged on the cushion block 4, the boss 11 abuts against the end face of the annular flange at the middle part of the core rod 3, an extension sleeve 10 surrounding the boss 11 is arranged on the first wiring pin 8, the spring 2 extends into the annular gap between the extension sleeve 10 and the boss 11 and is fixed on the inner wall of the extension sleeve 10, the boss 11 and the cushion block 4 are integrally formed, the extension sleeve 10 and the first wiring pin 8 are integrally formed, and the outer circle diameter of the boss 11 is larger than the outer diameter of the annular flange, so that a gap can be naturally formed between the spring 2 and the core rod 3 when the spring 2 is arranged in the gap between the boss 11 and the extension sleeve 10, and abnormal contact under the action of non-external force is.

In this embodiment, the outer end of the core rod 3 is of a ball head structure, the inner hole of the contact 1 is correspondingly an inner spherical surface, and the outer surface of the contact 1 is also of a ball head structure.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A high and low temperature resistant microswitch is characterized in that: the connector comprises a support, a contact, a spring, a core rod, a cushion block, a gasket, a nut, a first wiring pin and a second wiring pin, wherein an annular flange is arranged in the middle of the core rod, one end of the core rod sequentially penetrates through the cushion block, the second wiring pin, the gasket and the support and then is fastened by the nut, and the second wiring pin is in conductive connection with the core rod; the cushion block and the gasket are made of insulating materials, the first wiring pin is fixed on the other side of the cushion block relative to the second wiring pin, the contact and the spring are sleeved on the outer side of the core rod, the contact is fixed and in conductive connection with the first wiring pin through the spring, the spring and the core rod are coaxially arranged and separated from each other, and the contact and the core rod keep a uniform gap under the action of the elastic force of the spring.

2. The high and low temperature resistant microswitch of claim 1, wherein: the cushion block is made of ceramics; the first wiring pin, the second wiring pin, the spring, the contact and the core rod are made of copper or iron.

3. The high and low temperature resistant microswitch of claim 2, wherein: the first wiring foot is fixed with the cushion block through four hook claws, and the four hook claws are clamped and fixed on the side wall of the cushion block.

4. A high and low temperature resistant microswitch according to claim 3, wherein: the plug is characterized in that an axial boss is arranged on the cushion block, the boss abuts against the end face of an annular flange in the middle of the core rod, an extension sleeve surrounding the outer side of the boss is arranged on the first wiring pin, and the spring extends into an annular gap between the extension sleeve and the boss and is fixed on the inner wall of the extension sleeve.

5. The high and low temperature resistant microswitch of claim 4, wherein: the outer end of the core rod is of a ball head structure, the inner hole of the contact is correspondingly of an inner spherical surface, and the outer surface of the contact is also of a ball head structure.