CN215342331U

CN215342331U - Explosion-proof radar inductive switch

Info

Publication number: CN215342331U
Application number: CN202121011845.2U
Authority: CN
Inventors: 冯纪栓
Original assignee: Shenzhen Cary Technology Co ltd
Current assignee: Shenzhen Cary Technology Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-12-28
Anticipated expiration: 2031-05-12

Abstract

The utility model discloses an explosion-proof radar inductive switch, which comprises a microswitch, a radar sensor and a micro motor, wherein the microswitch comprises an upper shell and a lower shell, the upper shell is sleeved on the lower shell so as to form an accommodating cavity structure, and a wiring assembly is arranged in the accommodating cavity; the upper part of the lower shell is provided with a microswitch assembly, the microswitch assembly comprises a press switch and a press elastic sheet, the press switch is arranged on the upper side of the lower shell, the lower end of the press switch is deeply inserted into the accommodating cavity and is abutted against the wiring assembly, one end of the press shifting sheet is connected with the micro motor, and the other end of the press shifting sheet is contacted with the press switch; the radar sensor is arranged on one side of the micro motor and is fixedly connected with the lower shell, and whether a person approaches the micro motor or not can be effectively monitored by arranging the radar sensor, so that full-automatic control is realized, a manual operation mode is not required, and the micro motor is simpler and more convenient; meanwhile, the heat dissipation device is arranged, so that the heat inside the heat dissipation device can be effectively dissipated, and an explosion-proof effect is achieved.

Description

Explosion-proof radar inductive switch

Technical Field

The utility model relates to the field of electronic components, in particular to an explosion-proof radar inductive switch.

Background

The microswitch is a switch with a micro contact interval and a quick-acting mechanism, a contact mechanism for switching action by a specified stroke and a specified force is covered by a shell, and a driving rod is arranged outside the microswitch, so the microswitch is named as the microswitch, the traditional microswitch is provided with a plastic shell, when in operation, an external force pushes a metal contact of the microswitch inside through a nylon push rod, so that the microswitch is switched on and off, electric sparks are generated at the moment of switching on and off the contact, and the sparks are generated for a plurality of times along with long-time use, so the sparks are always accompanied with temperature, the temperature can be accumulated, the inside of the microswitch is in a relatively sealed state, and the microswitch is an ignition source because the temperature cannot be timely eliminated and changes along with time, so the microswitch can be slowly corroded due to the plastic shell, in complex circuit elements and interleaving of wires, using microswitches with plastic housings is prone to fire or explosion and reduces the lifetime of the microswitch.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the technology, the utility model provides an explosion-proof radar inductive switch; firstly, the radar sensor is arranged, so that whether a person approaches the radar sensor can be effectively monitored, full-automatic control is realized, a manual operation mode is not needed, and the radar monitoring system is simpler and more convenient; meanwhile, the heat dissipation device is arranged, so that the heat inside the heat dissipation device can be effectively dissipated, and an explosion-proof effect is achieved.

In order to achieve the purpose, the utility model provides an explosion-proof radar inductive switch which comprises a microswitch, a radar sensor and a micro motor, wherein the microswitch comprises an upper shell and a lower shell, the upper shell is sleeved on the lower shell so as to form an accommodating cavity structure, and a wiring assembly is arranged in the accommodating cavity; a micro switch assembly is arranged at the upper part of the lower shell and comprises a press switch and a press elastic sheet, the press switch is arranged at the upper side of the lower shell, the lower end of the press switch is deeply inserted into the accommodating cavity and is abutted to the wiring assembly, one end of the press shifting sheet is connected with the micro motor, and the other end of the press shifting sheet extends towards one side of the press switch and is contacted with the press switch; the radar sensor is arranged on one side of the micro motor and fixedly connected with the lower shell.

Preferably, the push switch protrudes out of the lower shell, the lower end of the push shifting piece is in contact with the upper end of the push switch, the push shifting piece is made of a metal material with good rigidity, and the surface of the push shifting piece is coated with an insulating material.

Preferably, the wiring assembly includes an external terminal and a movable piece, the external terminal is provided with three, including a main terminal and two auxiliary terminals, the main terminal is located at the lower end of the lower housing, and the main terminal abuts against the movable piece, the auxiliary terminal is provided at the other side of the lower housing, the auxiliary terminal is fixed on the lower housing, and an external projection is provided at one side of the auxiliary terminal facing the movable piece.

Preferably, the main terminal and the auxiliary terminal are both made of metal materials with good electric conductivity, and the main terminal and the auxiliary terminal are both provided with connecting through holes.

Preferably, the movable plate comprises a connecting plate, a contact plate and a spring, the connecting plate is installed at the upper end of the contact plate, one end of the connecting plate is abutted to the main terminal, and the other end of the connecting plate is provided with a connecting raised head which is in contact with the outer convex block.

Preferably, one end of the contact piece is fixed in the lower shell, the other end of the contact piece is in contact with the push switch, and the contact piece is connected with the connecting piece through the spring.

Preferably, the microswitch is further provided with two mounting holes, and the two mounting holes are symmetrically arranged at the diagonal positions of the microswitch.

Preferably, a heat dissipation device is further arranged on the side face of the microswitch and comprises a temperature sensor and a heat dissipation fan, and the heat dissipation device is arranged on the side face of the microswitch and electrically connected with the temperature sensor; the air outlet of the heat radiation fan is provided with a heat radiation hole with the clearance aperture not more than 1 mm;

the utility model has the beneficial effects that: compared with the prior art, the explosion-proof radar inductive switch provided by the utility model is firstly provided with the radar sensor, whether a person approaches the switch or not is judged by using the radar sensor, when the person approaches the switch, the micro motor is controlled to rotate, so that the pressing elastic sheet is driven to move, the pressing switch is further driven to move downwards, the contact piece moves downwards, at the moment, the connecting sheet is connected with the raised head to be abutted against the auxiliary terminal at the upper end under the action of the spring, a switch circuit is switched on, subsequent corresponding actions are realized, and when no person approaches the switch, the main terminal is always communicated with the auxiliary terminal at the lower end; meanwhile, the heat dissipation device is arranged, so that internal heat dissipation can be effectively realized, and the use safety is ensured.

Drawings

FIG. 1 is a main body structure view of the present invention;

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is an internal structural view of the present invention;

fig. 4 is an exploded view of a portion of the structure of the present invention.

The main element symbols are as follows:

1. lower shell 2, upper shell 3, micro switch assembly 4, radar sensor 5, micro motor

6. Mounting hole 7, main terminal 8, auxiliary terminal 9, connecting through hole 11, connecting sheet 12, spring 13 and contact sheet

14. Heat radiation fan 15, temperature sensor 21, heat radiation hole 31, press dial 32, press switch

81. First secondary terminal 82, second secondary terminal.

Detailed Description

In order to make the present invention clearer, the present invention is further described below with reference to the accompanying drawings and examples.

Referring to fig. 1 to 4, the utility model discloses an explosion-proof radar inductive switch, which comprises a microswitch, a radar sensor 4 and a micro motor 5, wherein the microswitch comprises an upper shell 2 and a lower shell 1, the upper shell 2 is sleeved on the lower shell 1 to form an accommodating cavity structure, and a wiring assembly is arranged in the accommodating cavity; the upper part of the lower shell 1 is provided with a microswitch component 3, the microswitch component 3 comprises a press switch 32 and a press elastic sheet 31, the press switch 32 is arranged on the upper side of the lower shell 1, the lower end of the press switch is deeply inserted into the accommodating cavity and is abutted with the wiring component, one end of the press shifting sheet 31 is connected with the micro motor 4, and the other end of the press shifting sheet extends towards one side of the press switch 32 and is contacted with the press switch 32; the radar sensor 4 is arranged on one side of the micro motor 5 and is fixedly connected with the lower shell 1. In particular embodiment, this application can be used and induction door region, thereby realize the auto-induction, more specifically, utilize radar sensor can catch user's walking speed and with the distance between the user, thereby it arrives the time of induction door and realizes opening and closing the induction door to calculate, be connected the inductive switch installation that this application provided with the control circuit of induction door, when radar sensor detects that the user is close to like this, micro motor takes place the rotation, it extrudees to pressing the switch to drive the shell fragment, thereby drive the switch-on of inside wiring subassembly realization circuit, the control circuit of switch-on induction door, make the induction door open, thereby satisfy the user demand.

In order to achieve the above purpose, the push switch 32 protrudes from the lower housing 1, the lower end of the push switch plate 31 contacts with the upper end of the push switch 32, the push switch plate 31 is made of a metal material with good rigidity, and the surface of the push switch plate 31 is coated with an insulating material. In this embodiment, if the micro motor can not move, the pressing toggle piece is particularly arranged, the pressing toggle piece can be manually driven to move towards, so that the pressing switch can be extruded, and the switch can be ensured to stably work.

The wiring assembly comprises an external terminal and a movable piece, the external terminal is three in number and comprises a main terminal 7, a first auxiliary terminal 81 and a second auxiliary terminal 82, the main terminal 7 is located at the lower end of the lower shell 1, the main terminal 7 is abutted to the movable piece, the auxiliary terminal is arranged on the other side of the lower shell and fixed on the lower shell, and an outer convex block is arranged on one side, facing the movable piece, of the auxiliary terminal. The main terminal 7 and the auxiliary terminal 8 are both made of metal materials with good electric conductivity, and the main terminal and the auxiliary terminal are both provided with connecting through holes 9. In this embodiment, the first auxiliary terminal and the second auxiliary terminal are connected with different external circuits, under normal conditions, the main terminal is a live wire, the first auxiliary terminal 81 is a zero line, the second auxiliary terminal 82 is a ground wire, when the working is not performed, the main terminal is communicated with the second auxiliary terminal, the live wire is grounded, the use safety is ensured, when the electric switch is used, the main terminal is communicated with the first auxiliary terminal, and the live wire is communicated with the zero line to realize the circuit communication of the load.

The movable piece comprises a connecting piece 11, a contact piece 13 and a spring 12, wherein the connecting piece 12 is arranged at the upper end position of the contact piece 13, one end of the connecting piece 11 is abutted with the main terminal 7, and the other end of the connecting piece is provided with a connecting raised head which is contacted with the outer convex block. One end of the contact piece 13 is fixed in the lower shell, the other end of the contact piece is contacted with the push switch, and the contact piece 13 is connected with the connecting piece 11 by a spring 12. In the embodiment, the connecting raised head of the connecting sheet is connected with different auxiliary terminals, so that the on-off of the switch circuit is realized, more specifically, one end of the connecting sheet is clamped on the main terminal, and a part of the connecting sheet extends outwards to form an extending part; when no force is applied to the extension part, the spring restores to deform, and the connecting sheet is contacted with the second auxiliary terminal.

The microswitch is also provided with two mounting holes 6, and the two mounting holes 6 are symmetrically arranged at the diagonal positions of the microswitch. A heat dissipation device is further arranged on the side face of the microswitch and comprises a temperature sensor 15 and a heat dissipation fan 14, and the heat dissipation fan 14 is arranged on the side face of the microswitch and electrically connected with the temperature sensor 15; the air outlet of the heat radiation fan is provided with a heat radiation hole 21 with the clearance aperture not more than 1 mm. In this embodiment, utilize temperature sensor to detect the temperature of holding intracavity, when the high temperature, control radiator fan carries out work for the heat gives off the external world and goes, and the aperture of louvre is less, can prevent effectively that the foreign matter from entering into the holding intracavity, ensures safe in utilizationly.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. An explosion-proof radar inductive switch is characterized by comprising a microswitch, a radar sensor and a micro motor, wherein the microswitch comprises an upper shell and a lower shell, the upper shell is sleeved on the lower shell to form an accommodating cavity structure, and a wiring assembly is arranged in the accommodating cavity; a micro switch assembly is arranged at the upper part of the lower shell and comprises a press switch and a press shifting sheet, the press switch is arranged at the upper side of the lower shell, the lower end of the press switch is deeply inserted into the accommodating cavity and is abutted to the wiring assembly, one end of the press shifting sheet is connected with the micro motor, and the other end of the press shifting sheet extends towards one side of the press switch and is contacted with the press switch; the radar sensor is arranged on one side of the micro motor and fixedly connected with the lower shell.

2. The explosion-proof type radar sensing switch of claim 1, wherein the push switch protrudes from the lower housing, a lower end of the push paddle contacts an upper end of the push switch, and a surface of the push paddle is coated with an insulating material.

3. The explosion-proof type radar inductive switch of claim 1, wherein the wiring assembly includes three external terminals and a movable piece, the three external terminals include a main terminal and two auxiliary terminals, the main terminal is located at a lower end of the lower housing, the main terminal is abutted against the movable piece, the auxiliary terminals are disposed at the other side of the lower housing, the auxiliary terminals are fixed on the lower housing, and an external protrusion is disposed at one side of the auxiliary terminals facing the movable piece.

4. The explosion proof type radar sensing switch of claim 3, wherein said main terminal and said auxiliary terminal are made of metal material, and said main terminal and said auxiliary terminal are provided with connecting through holes.

5. The explosion-proof type radar sensing switch according to claim 3, wherein the movable plate includes a connection plate, a contact plate and a spring, the connection plate is mounted at an upper end position of the contact plate, one end of the connection plate abuts against the main terminal, and the other end of the connection plate is provided with a connection projection contacting with the outer projection.

6. The explosion proof type radar sensing switch of claim 5, wherein one end of the contact piece is fixed in the lower case, the other end is contacted with the push switch, and the contact piece and the connection piece are connected by the spring.

7. The explosion-proof radar inductive switch of claim 1, wherein said micro switch further comprises two mounting holes, and said two mounting holes are symmetrically disposed at opposite corners of said micro switch.

8. The explosion-proof radar inductive switch of claim 1, wherein a heat sink is further disposed on a side surface of the micro switch, the heat sink includes a temperature sensor and a heat dissipation fan, and the heat dissipation is disposed on the side surface of the micro switch and electrically connected to the temperature sensor; and the air outlet of the heat radiation fan is provided with a heat radiation hole with the clearance aperture not more than 1 mm.