CN212180170U

CN212180170U - Novel pressure sensor

Info

Publication number: CN212180170U
Application number: CN202021096391.9U
Authority: CN
Inventors: 张生洲; 陈楚波
Original assignee: Koscn Industrial Manufacturing Shenzhen Co ltd
Current assignee: Koscn Industrial Manufacturing Shenzhen Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2020-12-18
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses a novel pressure sensor, including integrated into one piece's sensor housing, the sensor housing both ends are the electrical connection end respectively and connect the liquid end, and the electrical connection end passes through the screw thread to be connected with electrical component, connects the liquid end to pass through the screw thread and connect the liquid subassembly to be connected, sets up the sensor in the sensor housing from bottom to top respectively, installation guide pillar and circuit board, and the upper portion of installation guide pillar sets up guide pillar card needle, guide pillar card needle and jump ring joint, in the jump ring embedding sensor housing inner wall's jump ring groove, the circuit card needle and the guide pillar card needle fixed connection of circuit board. To connect liquid end and sensor housing integrated into one piece to make sensor housing, change traditional two-period form packaging structure, prevent to produce because of the harm that the misoperation leads to inefficacy, harm or leakage, improve pressure and pretightning force through the fixed mode that reaches jump ring embedding sensor housing inner wall of inside setting up installation guide pillar, strengthen the encapsulation dynamics of sensor, make the sensor steadily fix in sensor housing's sensor installation position.

Description

Novel pressure sensor

Technical Field

The utility model relates to a novel pressure sensor.

Background

The packaging structure of the existing pressure sensor is generally a two-section type connection, that is, the metal sensor shell is connected with the plastic liquid receiving end through threads. In the process of pipeline installation or dismantlement, the unnormal dismantlement that probably appears, if the position of snatching the casing is unreasonable, makes two-stage type connection structure not hard up easily, leads to the sensor inefficacy, perhaps influences the sealing performance of sensor, makes liquid get into the sensor inner chamber, leads to the circuit board to burn out.

The above disadvantages need to be improved.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a novel pressure sensor.

The utility model discloses technical scheme as follows:

a novel pressure sensor comprises an integrally formed sensor shell, wherein two ends of the sensor shell are respectively an electric connection end and a liquid connection end, the electric connection end is connected with an electric assembly through a thread, the liquid connection end is connected with a liquid connection assembly through a thread,

the inner wall of the sensor shell is step-shaped, the sensor, the installation guide pillar and the circuit board are respectively arranged from bottom to top, the upper part of the installation guide pillar is provided with a guide pillar clamping needle, the guide pillar clamping needle is clamped with a clamp spring, the clamp spring is embedded into a clamp spring groove in the inner wall of the sensor shell, and the circuit clamping needle of the circuit board is fixedly connected with the guide pillar clamping needle.

Foretell novel pressure sensor, electric subassembly includes electric plug and electric plug nut, electric plug with electric plug nut passes through threaded connection, electric plug nut with the end of connecting with electricity passes through threaded connection.

The novel pressure sensor comprises a liquid receiving assembly, wherein the liquid receiving assembly comprises a locking nut and a connector, the connector is inserted into the bottom of the sensor shell and is fixed through a connector sealing groove, and the locking nut is sleeved outside the connector and in threaded connection with the liquid receiving end.

Furthermore, a driven joint sealing ring is arranged between the driven joint sealing groove and the driven joint.

The novel pressure sensor is characterized in that the thread of the electric connection end is an external thread.

In the novel pressure sensor, the thread of the liquid receiving end is an external thread.

The novel pressure sensor is characterized in that a sealing groove is formed in the bottom of the sensor shell, and a sensor packaging sealing ring is arranged between the sensor and the sealing groove.

In the novel pressure sensor, the circuit board is welded with the terminal of the electrical plug.

The novel pressure sensor is characterized in that the sensor shell is directly connected with an external pipeline through the liquid receiving assembly.

In the novel pressure sensor, the sensor shell is made of UPVC, CPVC, PPH, PVDF or PTFE.

In the novel pressure sensor, the liquid receiving mounting hole at the center of the bottom of the sensor shell is protruded, and a sealing groove is formed on the inner wall of the sensor shell.

The utility model according to the proposal has the advantages that,

1. to connect liquid end and sensor housing integrated into one piece to make sensor housing, change traditional two-period form packaging structure, prevent to produce because of the harm that the misoperation leads to inefficacy, harm or leakage, improve pressure and pretightning force through the fixed mode that reaches jump ring embedding sensor housing inner wall of inside setting up installation guide pillar, strengthen the encapsulation dynamics of sensor, make the sensor steadily fix in sensor housing's sensor installation position.

2. The sensor shell is an integrally formed structure made of all-plastic materials, one of UPVC, CPVC, PPH, PVDF and PTFE is selected, compared with the existing sensor shell made of metal materials such as stainless steel, the sensor shell is high in acid and alkali resistance, the safety and reliability of the sensor shell in chemical medium measurement application or other corrosive liquid measurement application are improved, the sensor shell can normally work in various severe environments, and the application range and the use environment of the sensor are enlarged.

3. The utility model discloses adopt the ball valve class between sensor housing's the end of connecing liquid pipeline by the order connect, make the sensor can through by the order connect with the pipeline directly plug into, the installation, dismantle conveniently to realize locking and swing joint through lock nut, manual can the installation dismantle, need not the instrument and assist, simple and convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a structural sectional view of a sensor housing.

Wherein, in the figures, the respective reference numerals:

1. a sensor housing; 11. connecting the electric terminal; 12. a liquid receiving end; 13. a sealing groove; 14. a sensor mounting location; 15. mounting a guide pillar mounting position; 16. a clamp spring groove; 17. a circuit board mounting position; 18. the sealing groove is sealed by the joint;

2. an electrical component; 21. an electrical plug nut; 22. an electrical plug; 23. a plug fixing bolt;

3. a liquid receiving assembly; 31. a sealing ring of the connector; 32. locking the nut; 33. the order connector;

4. a sensor packaging sealing ring; 5. a sensor; 6. mounting a guide pillar; 61. the guide post is clamped with the needle; 7. a clamp spring; 8. a circuit board.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "fixed" or "disposed" or "connected" to another element, it can be directly or indirectly located on the other element. The terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and should not be construed as limiting the technical solution.

The utility model provides a novel pressure sensor, as shown in figure 1, including integrated into one piece's sensor housing 1, the sensor housing 1 both ends arch is respectively for connecting electrical terminal 11 and connect liquid end 12, connects electrical terminal 11 to be connected with electric component 2 through the screw thread, connects liquid end 12 to be connected with connect liquid component 3 through the screw thread.

The sensor 5 and the circuit board 8 are arranged in the sensor shell 1 and are the main body of the packaging structure. The inner wall of the sensor shell 1 is distributed in a step shape, and is respectively provided with a sealing groove 13, a sensor mounting position 14, a mounting guide pillar mounting position 15, a clamp spring groove 16 and a circuit board mounting position 17 from bottom to top, and a sensor packaging sealing ring 4, a sensor 5, a mounting guide pillar 6, a clamp spring 7 and a circuit board 8 are correspondingly arranged. The liquid receiving mounting hole in the center of the bottom of the sensor shell 1 protrudes inwards to form an annular sealing groove 13, so that the sealing property and the water resistance of the packaging structure are further improved, and the sensor 5 is protected. The clamp spring groove 16 is deeper into the inner wall of the sensor shell 1 relative to the circuit board mounting position 17 and the mounting guide post mounting position 15, so that the pressure and the pretightening force of the clamp spring 7 on the mounting guide post 6 and the sensor 5 are improved, the packaging strength of the sensor 5 is enhanced, and the sensor 5 is stably fixed in the sensor mounting position 14 of the sensor shell 1.

The upper portion of the installation guide pillar 6 protrudes to form a guide pillar clamping needle 61, and when the clamp spring 7 is installed, the clamp spring 7 is clamped with the guide pillar clamping needle 61 through a tool and is embedded into a clamp spring groove 16 in the inner wall of the sensor shell 1, so that clamping force of the clamp spring 7 is guaranteed. The guide post clamping pin 61 of the mounting guide post 6 penetrates upwards through the circuit board 8 and is fixedly connected with the circuit clamping pin of the circuit board 8, so that the circuit board 8 is fixed on the circuit board mounting position 17.

The utility model discloses to connect liquid end 12 and sensor housing integrated into one piece to make sensor housing 1, change traditional two-period form packaging structure, prevent to lead to inefficacy, harm or the harm of leaking to produce because of the misoperation, the mode that installs the fixed and jump ring 7 embedding sensor housing 1 inner wall of guide pillar 6 through inside setting up improves pressure and pretightning force, reinforcing sensor 5's encapsulation dynamics improves packaging structure's leakproofness simultaneously, makes sensor 5 steadily fix in sensor housing 1's sensor installation position 14.

In one embodiment, the electrical assembly 2 comprises an electrical plug 22 and an electrical plug nut 21, the electrical plug 22 and the electrical plug nut 21 are in threaded connection through a plug fixing bolt 23, the electrical plug nut 21 and the electrical connection end 11 are in threaded connection, the outgoing line of the circuit board 8 is welded with the terminal of the electrical plug 22, the sensor 5, the circuit board 8 and the electrical plug 22 are connected in a circuit mode, and the sensing function of the sensor 5 is achieved.

In one embodiment, the threads of the electric connection end 11 are external threads, which are more advantageous in terms of water resistance and sealing than internal threads.

In one embodiment, the liquid receiving assembly 3 comprises a locking nut 32 and a driven joint 33, the driven joint 33 is inserted into the bottom of the sensor housing 1 and is fixed by the driven joint sealing groove 18, a driven joint sealing ring 31 is arranged between the driven joint 33 and the driven joint sealing groove 18, and the locking nut 32 is sleeved outside the driven joint 33 and is in threaded connection with the liquid receiving end 12. Wherein the liquid receiving end 12 is bored upwardly to form a union seal groove 18, the union seal groove 18 being provided between the liquid receiving mounting hole and the thread of the liquid receiving end 12. The sensor housing 1 is conveniently disassembled and assembled by directly connecting the connector 33 with an external pipeline. And realize locking and swing joint through lock nut 32, manual can install and dismantle, need not instrument assistance, simple and convenient.

In one embodiment, the threads of the receiving end 12 are external threads, which may be advantageous in providing a water-tight seal as compared to internal threads.

In one embodiment, the material of the sensor housing 1 is UPVC, CPVC, PPH, PVDF, or PTFE. Because sensor housing 1 is the integrated into one piece structure that plastic material made, compares the sensor casing of metal material such as current stainless steel, and acid and alkali resistance is high, improves security and the reliability in chemical medium measurement application or other corrosive liquids measurement application, makes it normally work in various adverse circumstances, enlarges sensor's application range and service environment.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A novel pressure sensor is characterized by comprising an integrally formed sensor shell, wherein two ends of the sensor shell are respectively an electric connection end and a liquid connection end, the electric connection end is connected with an electric assembly through a thread, the liquid connection end is connected with a liquid connection assembly through a thread,

the sensor, the installation guide pillar and the circuit board are respectively arranged in the sensor shell from bottom to top, the guide pillar clamping needle is arranged on the upper portion of the installation guide pillar and clamped with the clamp spring, the clamp spring is embedded into the clamp spring groove in the inner wall of the sensor shell, and the circuit clamping needle of the circuit board is fixedly connected with the guide pillar clamping needle.

2. The novel pressure sensor of claim 1, wherein the electrical assembly comprises an electrical plug and an electrical plug nut, the electrical plug and the electrical plug nut are in threaded connection, and the electrical plug nut and the electrical connection end are in threaded connection.

3. The novel pressure sensor of claim 1, wherein the liquid receiving assembly comprises a locking nut and a union joint, the union joint is inserted into a union joint sealing groove at the bottom of the sensor shell and fixed, and the locking nut is sleeved outside the union joint and is in threaded connection with the liquid receiving end.

4. The new pressure sensor of claim 3 wherein a coupler seal ring is disposed between the coupler seal groove and the coupler.

5. A novel pressure sensor as claimed in claim 2 or 3 wherein the threads of the sensor housing are external threads.

6. The novel pressure sensor of claim 1 wherein the circuit board is soldered to the terminals of the electrical plug.

7. The novel pressure sensor of claim 1, wherein a sealing groove is formed at the bottom of the sensor housing, and a sensor package sealing ring is arranged between the sensor and the sealing groove.

8. The novel pressure sensor of claim 1, wherein said sensor housing is directly interfaced with an external conduit via said fluid interface assembly.

9. The novel pressure sensor of claim 1, wherein the liquid receiving hole at the center of the bottom of the sensor housing is protruded to form a sealing groove with the inner wall of the sensor housing.

10. The novel pressure sensor of claim 1 wherein the sensor housing is made of a material selected from the group consisting of UPVC, CPVC, PPH, PVDF and PTFE.