CN214851184U

CN214851184U - Electronic pressure switch

Info

Publication number: CN214851184U
Application number: CN202121603549.1U
Authority: CN
Inventors: 林瑞毅
Original assignee: Zhejiang Chuangtuo Auto Parts Co ltd
Current assignee: Zhejiang Chuangtuo Auto Parts Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-11-23
Anticipated expiration: 2031-07-14

Abstract

An electronic pressure switch, the upper end of the body has open cavities, the lower end surface is equipped with the base assembly in the open cavity, the opening of the upper end of open cavity embeds and closes the plug assembly, there is a circuit board assembly between upper end of the base assembly and the lower end of the plug assembly, there is a push rod assembly to pass the lower end of the body in the middle of the base assembly, there are reset springs between shell and the push rod assembly, there are hall switches on the circuit board assembly; the upper end of the push rod component is provided with a magnet. The advantages are that: no mechanical contact, no electric spark, stable switching signal, no instant shake, high reliability and high anti-interference performance.

Description

Electronic pressure switch

Technical Field

The invention relates to an electronic pressure switch.

Background

At present, pressure switches used for mainstream heavy truck commercial vehicles are all mechanical contact switches, and the contact of the switches is switched on or off through the reciprocating motion of an external trigger switch push rod. In the gear shifting process of the gearbox, a switch contact passes through a large current, and an instant electric arc is generated when the contact is closed or disconnected, so that the contact is easy to ablate or blacken, the service life of the switch on the whole vehicle is influenced, and particularly, a neutral switch often causes that the whole vehicle cannot be started and stopped between roads and is very dangerous. The current switch mainly has the following difficulties in after-sale failure: the contact is blackened and ablated, the rubber is abraded to cause water and oil to enter, and the triggering response is delayed.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an electronic pressure switch.

In order to achieve the purpose, the invention adopts the following technical scheme: an electronic pressure switch comprises a shell, a plug assembly, a base assembly, a circuit board assembly, a push rod assembly and a return spring; an opening cavity is formed in the upper end of the shell, a base assembly is arranged on the lower end face in the opening cavity, a plug assembly is embedded in the opening in the upper end of the opening cavity, a circuit board assembly is arranged between the lower end of the plug assembly and the upper end of the base assembly, a push rod assembly penetrating through the lower end of the shell is arranged in the center of the base assembly, a reset spring is arranged among the push rod assembly, the base assembly and the shell, and a Hall switch is arranged on the circuit board assembly; the upper end of the push rod component is provided with a magnet.

Furthermore, a normally open circuit or a normally closed circuit is arranged on the circuit board assembly.

Furthermore, a first channel is arranged in the center of the shell, a second channel is arranged in the center of the base assembly, a magnet at the upper end of the push rod assembly penetrates through the first channel and is located on the second channel to move up and down, and the lower end of the push rod assembly is located on the outer side of the first channel.

Furthermore, the base assembly is clamped on the lower end face in the opening cavity.

Further, the lower extreme of base subassembly is equipped with the extension section of second passageway, and the extension section inserts in the first passageway, and the upper end of first passageway is equipped with first spacing collar, and the laminating of first spacing collar is on the extension section lateral wall.

Furthermore, the push rod assembly is located the first passageway inner segment and is equipped with the second spacing collar, is equipped with reset spring on the push rod assembly between second spacing collar and the first spacing collar, and reset spring one end supports on the second spacing collar, and the other end supports on the first spacing collar.

Furthermore, a sealing gasket which does not cover the first channel and the second channel is arranged between the base assembly and the inner lower end surface of the opening cavity.

The invention has the beneficial effects that: no mechanical contact, no electric spark, stable switching signal, no instant shake, high reliability and high anti-interference performance.

Drawings

FIG. 1 is a schematic diagram of the inventive structure.

Fig. 2 is a plan view.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Embodiment 1 referring to fig. 1-2, an electronic pressure switch includes a housing 1, a plug assembly 2, a base assembly 3, a circuit board assembly 4, a push rod assembly 5, and a return spring 6; an opening cavity is formed in the upper end of the shell, a base assembly 3 is arranged on the lower end face in the opening cavity, a plug assembly 2 is embedded in the opening in the upper end of the opening cavity, a circuit board assembly 4 is arranged between the lower end of the plug assembly 2 and the upper end of the base assembly 3, a push rod assembly 5 penetrating through the lower end of the shell 1 is arranged in the center of the base assembly 3, a reset spring 6 is arranged among the push rod assembly 5, the base assembly 3 and the shell 1, and a Hall switch is arranged on the circuit board assembly; the upper end of the push rod component is provided with a magnet 7.

A circuit board component 3 is provided with a normally open circuit or a normally closed circuit.

The utility model provides an electronic type pressure switch, casing central authorities are equipped with first passageway 8, and base subassembly central authorities are equipped with second passageway 9, and the magnet of push rod subassembly upper end passes first passageway and is located the second passageway and reciprocates, and the push rod subassembly lower extreme is located the first passageway outside.

A base assembly of an electronic pressure switch is clamped on the lower end face in an opening cavity.

The utility model provides an electronic type pressure switch, the lower extreme of base subassembly is equipped with the extension section 10 of second passageway, and the extension section inserts in the first passageway, and the upper end of first passageway is equipped with first spacing collar 11, and the laminating of first spacing collar is on the extension section lateral wall.

The utility model provides an electronic type pressure switch, push rod assembly are located first passageway inner segment and are equipped with second spacing collar 12, are equipped with reset spring on the push rod assembly between second spacing collar and the first spacing collar, and reset spring one end supports on the second spacing collar, and the other end supports on the first spacing collar.

A sealing gasket 13 which does not cover a first channel and a second channel is arranged between a base component and the inner lower end surface of an opening cavity.

The electronic pressure switch adopts Hall effect principle, when the magnet moves close to the Hall switch, the Hall element on the Hall switch detection surface can produce Hall effect to make the internal circuit state of the switch change, so that it can identify that nearby magnetic body is existed, and can control on-off of the pressure switch.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. An electronic pressure switch comprises a shell, a plug assembly, a base assembly, a circuit board assembly, a push rod assembly and a return spring; the method is characterized in that: an opening cavity is formed in the upper end of the shell, a base assembly is arranged on the lower end face in the opening cavity, a plug assembly is embedded in the opening in the upper end of the opening cavity, a circuit board assembly is arranged between the lower end of the plug assembly and the upper end of the base assembly, a push rod assembly penetrating through the lower end of the shell is arranged in the center of the base assembly, a reset spring is arranged among the push rod assembly, the base assembly and the shell, and a Hall switch is arranged on the circuit board assembly; the upper end of the push rod component is provided with a magnet.

2. The electronic pressure switch of claim 1, wherein: the circuit board assembly is provided with a normally open circuit or a normally closed circuit.

3. An electronic pressure switch according to claim 2, characterized in that: the casing central authorities are equipped with first passageway, and base subassembly central authorities are equipped with the second passageway, and the magnet of push rod subassembly upper end passes first passageway and is located the second passageway and reciprocates, and the push rod subassembly lower extreme is located the first passageway outside.

4. An electronic pressure switch according to claim 3, characterized in that: the base component is clamped on the lower end face in the opening cavity.

5. The electronic pressure switch of claim 4, wherein: the lower extreme of base subassembly is equipped with the extension section of second passageway, and the extension section inserts in the first passageway, and the upper end of first passageway is equipped with first spacing collar, and the laminating of first spacing collar is on the extension section lateral wall.

6. The electronic pressure switch of claim 5, wherein: the push rod assembly is located the first passageway inner segment and is equipped with the second spacing collar, is equipped with reset spring on the push rod assembly between second spacing collar and the first spacing collar, and reset spring one end supports on the second spacing collar, and the other end supports on the first spacing collar.

7. The electronic pressure switch of claim 6, wherein: and a sealing gasket which does not cover the first channel and the second channel is arranged between the base assembly and the lower end surface in the open cavity.