Electronic pressure switch

Abstract

The utility model discloses an electronic pressure switch, which is applied to the technical field of pressure switches, and comprises a switch main body and a joint, a support frame is arranged in the switch main body, a circuit board is bolted in the support frame, one end of the support frame far away from the joint is in interference fit with a silica gel pad, and the silica gel pad is connected with the circuit board. Two keys used in cooperation with the circuit board are symmetrically inserted in the side, away from the connector, of the switch body, and an induction core electrically connected with the circuit board is clamped in the connector. Pressure is sensed and measured through the sensing core body, and the pressure sensed by the sensing core body is finely measured through the circuit board, so that the pressure is fed back to the plug-in unit and is converted into an electric signal to be fed back to the plug-in unit, and the plug-in unit can transmit the electric signal outwards to drive the switch to be switched on and off. The sensing precision of the pressure switch is improved, and transmission errors are reduced. And the action is triggered directly through an electric signal without a mechanical moving part, so that quick response can be realized, and the practicability is improved.

Description

Electronic pressure switch Technical Field

[0001] This utility model belongs to the field of pressure switch technology, and particularly relates to electronic pressure switches. Background Technology

[0002] An electronic pressure switch is an industrial device that uses electronic sensing technology to monitor and control pressure. It converts physical pressure signals into electrical signals through sensors and triggers the switch action based on a preset threshold.

[0003] Currently, Chinese utility model patent CN214851184U discloses an electronic pressure switch. Existing electronic pressure switches, when the measured pressure reaches a set value, cause deformation or a change in the electrical characteristics of the sensor element. The signal processing unit compares this to a preset threshold and then drives the switch to open or close. For example, a normally open (NO) type closes when the pressure reaches the set value, while a normally closed (NC) type opens. However, due to the poor accuracy of the sensor element, transmission errors exist; furthermore, the signal processing unit needs to control the on / off switching of mechanical moving parts during triggering, making a rapid response impossible, thus limiting its practicality. Summary of the Invention

[0004] The purpose of this invention is to provide an electronic pressure switch, which has the advantages of improving the sensing accuracy of the pressure switch, providing fast response, and reducing transmission errors.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an electronic pressure switch, including a switch body and a connector, wherein a support frame is installed inside the switch body, a circuit board is bolted inside the support frame, a silicone pad is interference-fitted at the end of the support frame away from the connector, two buttons for use with the circuit board are symmetrically inserted into the side of the switch body away from the connector, a sensing core electrically connected to the circuit board is snapped into the inside of the connector, and a plug electrically connected to the circuit board is threaded to one side of the switch body.

[0006] The above technical solution uses a sensing core to detect and measure pressure. The circuit board then precisely measures the pressure sensed by the sensing core, feeding it back to the plug-in module. This pressure signal is converted into an electrical signal and fed back to the plug-in module, allowing it to transmit an electrical signal to drive the switch on and off. This improves the sensing accuracy of the pressure switch and reduces transmission errors. Furthermore, since the action is triggered directly by an electrical signal without any moving mechanical parts, it also enables rapid response and improves practicality.

[0007] The present invention is further configured such that: a screw is provided on the side of the switch body near the plug-in, and the support frame is bolted to the inside of the switch body by the screw.

[0008] The above technical solution uses an M12 international standard aviation plug, which is convenient, practical and easy to maintain, and the connection cable length can be configured according to different working conditions.

[0009] The present invention is further configured such that: a pressure ring is provided between the connector and the switch body, and the connector is threadedly connected to one end of the switch body through the pressure ring.

[0010] By adopting the above technical solution, the stability of the connection is improved, making the pressure switch more robust and durable.

[0011] The present invention is further configured such that two O-rings are sequentially fixedly sleeved on the surface of the connector near the end of the switch body.

[0012] By adopting the above technical solution, the sealing performance is improved, preventing moisture from seeping into the interior and affecting operation.

[0013] The present invention is further configured such that the outer surface of the switch body is coated with a flame-retardant layer with a flame-retardant rating of UL-94V-0.

[0014] By adopting the above technical solution, a protective layer can be formed, improving the flame-retardant performance of the pressure switch.

[0015] The present invention is further configured such that: an insulating sleeve is fitted onto the surface of the support frame, and the circuit board is a 24-bit microprocessor.

[0016] By adopting the above technical solution, the damage to the internal circuit board caused by equipment leakage is reduced, while ensuring rapid and accurate data measurement, meeting the harsh working conditions of 8kV static electricity.

[0017] In summary, this utility model has the following beneficial effects:

[0018] The pressure switch uses a sensing core to measure pressure, which is then precisely measured by a circuit board. This measured pressure is fed back to the connector, where it is converted into an electrical signal. The connector then transmits this electrical signal to drive the switch on and off. This improves the pressure switch's sensing accuracy and reduces transmission errors. Furthermore, since the action is triggered directly by an electrical signal without any moving mechanical parts, it allows for rapid response and enhances practicality. Attached Figure Description

[0019] Figure 1 is an exploded view of the structure of this utility model.

[0020] Reference numerals in the attached diagram: 1. Switch body; 2. Button; 3. Silicone pad; 4. Support frame; 5. O-ring; 6. Pressure ring; 7. Sensor core; 8. Connector; 9. Circuit board; 10. Insert; 11. Screw. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Example 1:

[0023] Referring to Figure 1, the electronic pressure switch includes a switch body 1 and a connector 8. A support frame 4 is installed inside the switch body 1, and a circuit board 9 is bolted inside the support frame 4. A silicone pad 3 is interference-fitted to the end of the support frame 4 away from the connector 8. Two buttons 2, which cooperate with the circuit board 9, are symmetrically inserted into the side of the switch body 1 away from the connector 8. A sensing core 7, electrically connected to the circuit board 9, is snapped into the inside of the connector 8. A plug 10, electrically connected to the circuit board 9, is threaded onto one side of the switch body 1. The sensing core 7 senses and measures the pressure, and the circuit board 9 precisely measures the pressure sensed by the sensing core 7, feeding it back to the plug 10. This pressure is then converted into an electrical signal and fed back to the plug 10, allowing the plug 10 to send an electrical signal to drive the switch on and off. This improves the sensing accuracy of the pressure switch, reduces transmission errors, and, because the action is triggered directly by an electrical signal without mechanical moving parts, it also allows for rapid response and improves practicality.

[0024] Referring to Figure 1, a screw 11 is provided on the side of the switch body 1 near the plug 10, and the support frame 4 is fastened to the inside of the switch body 1 by the screw 11. The plug 10 adopts an M12 international universal aviation plug, which is convenient, practical and easy to maintain, and the connection cable length can be configured according to different working conditions.

[0025] Referring to Figure 1, a pressure ring 6 is provided between the connector 8 and the switch body 1, and the connector 8 is threadedly connected to one end of the switch body 1 through the pressure ring 6. This improves the stability of the connection and makes the pressure switch more robust and durable.

[0026] Referring to Figure 1, two O-rings 5 ​​are sequentially fixedly fitted onto the surface of the connector 8 near the end of the switch body 1. This improves the sealing performance and prevents moisture from seeping into the interior and affecting operation.

[0027] Referring to Figure 1, the outer surface of the switch body 1 is coated with a flame-retardant layer with a flame-retardant rating of UL-94V-0. This forms a protective layer and improves the flame-retardant performance of the pressure switch.

[0028] Referring to Figure 1, the surface of the support frame 4 is fitted with an insulating sleeve, and the circuit board 9 is a 24-bit microprocessor. This reduces the impact of equipment leakage current on the internal circuit board 9, while ensuring rapid and accurate data measurement, meeting the harsh operating conditions of 8kV electrostatic discharge.

[0029] Brief description of the usage process: First, install the two buttons 2 onto the silicone pad 3 to mate with the circuit board 9. Then, connect the silicone pad 3 to the support frame 4 with an interference fit, and install the support frame 4 inside the switch body 1. Next, electrically connect the silicone pad 3 to the plug-in 10 inside the switch body 1 and the sensing core 7 inside the connector 8, and then use the pressure ring 6 to thread and fix the switch body 1 and connector 8. Finally, the sensing core 7 senses and measures the pressure, and the circuit board 9 precisely measures the pressure sensed by the sensing core 7, which is then fed back to the plug-in 10 and converted into an electrical signal. This allows the plug-in 10 to send an electrical signal to drive the switch on and off.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An electronic pressure switch, comprising a switch body (1) and a connector (8), characterized in that: The switch body (1) is equipped with a support frame (4) inside, and a circuit board (9) is bolted inside the support frame (4). A silicone pad (3) is interference-fitted at the end of the support frame (4) away from the connector (8). Two buttons (2) that work with the circuit board (9) are symmetrically inserted into the side of the switch body (1) away from the connector (8). A sensing core (7) that is electrically connected to the circuit board (9) is snapped into the inside of the connector (8). A plug (10) that is electrically connected to the circuit board (9) is threaded onto one side of the switch body (1).

2. The electronic pressure switch according to claim 1, characterized in that: The switch body (1) is provided with a screw (11) on the side near the plug (10), and the support frame (4) is bolted to the inside of the switch body (1) by the screw (11).

3. The electronic pressure switch according to claim 1, characterized in that: A pressure ring (6) is provided between the connector (8) and the switch body (1), and the connector (8) is threaded to one end of the switch body (1) through the pressure ring (6).

4. The electronic pressure switch according to claim 1, characterized in that: Two O-rings (5) are sequentially fixedly fitted onto the surface of the connector (8) near the end of the switch body (1).

5. The electronic pressure switch according to claim 1, characterized in that: The outer surface of the switch body (1) is coated with a flame-retardant layer with a flame-retardant rating of UL-94V-0.

6. The electronic pressure switch according to claim 1, characterized in that: The surface of the support frame (4) is fitted with an insulating sleeve, and the circuit board (9) is a 24-bit microprocessor.

Images