CN212807439U

CN212807439U - Differential pressure sensor joint

Info

Publication number: CN212807439U
Application number: CN202020832687.6U
Authority: CN
Inventors: 杜玉仙
Original assignee: Ningbo Nengsu Auto Parts Co ltd
Current assignee: Ningbo Nengsu Auto Parts Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-03-26
Anticipated expiration: 2030-05-18

Abstract

The application discloses a differential pressure sensor joint, wherein the differential pressure sensor joint comprises a joint body and a differential pressure sensor assembly, wherein the joint body comprises a first joint main body, a second joint main body and a main body part, the first joint main body and the second joint main body respectively integrally extend from the main body part, the first joint main body forms a first channel, and the second joint main body forms a second channel; a mounting chamber is formed at one side of the body part, the body part forms a first communicating hole and a second communicating hole in the receiving chamber, the first communicating hole is arranged to communicate with the first channel, the second communicating hole is arranged to communicate with the second channel, wherein the differential pressure sensor assembly is mounted to the receiving chamber to detect a pressure difference of the liquid in the first channel and the second channel.

Description

Differential pressure sensor joint

Technical Field

The utility model relates to a pipe fitting connects, especially relates to a differential pressure sensor connects.

Background

With the improvement of living standard of people, a plurality of electric appliances and mechanical equipment are widely applied to the life of people. In particular, domestic vehicles, air conditioners, refrigerators, and the like have become indispensable devices in human life.

In many electrical appliances, a fluid is required. For example, the refrigerant in the air conditioner needs to be conducted to and from the condenser, the evaporator, and the compressor. In vehicles, for example, fuel in an internal combustion engine needs to be conducted between various components.

Furthermore, during the fluid conduction process, the pressure difference of the fluid needs to be detected, so that the machine can automatically control other components to work in coordination according to the detected pressure difference of the fluid in time. However, differential pressure sensors typically include electrical conductors so that the differential pressure sensor cannot be directly contacted by a fluid, particularly a conductive liquid. Thus, the differential pressure sensor cannot directly detect the pressure difference of the fluid by contacting the fluid. This results in hysteresis of the differential pressure sensor.

Pipe joints are widely used for butt-jointing pipe bodies, and the pipe joints need to have good sealing performance when the pipe bodies are butted, so that if a differential pressure sensor is installed on the pipe joints, the sealing performance of the pipe is inevitably influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a differential pressure sensor connects, wherein the fluid body connects includes a pressure difference determine module, wherein the pressure difference determine module is installed sealedly in fluid pipeline connects, is used for detecting the fluid pressure difference through the fluid pipe fitting connects.

Another object of the present invention is to provide a differential pressure sensor joint, wherein the fluid pipe fitting joint is provided with a pressure difference detecting assembly capable of detecting the pressure difference of the fluid through direct contact with the fluid.

Another object of the present invention is to provide a differential pressure sensor joint, wherein the pressure difference sensing assembly is capable of indirectly sensing the pressure difference of the fluid through the fluid conduit joint.

For realizing the utility model discloses above at least one purpose, the utility model provides a differential pressure sensor connects, wherein differential pressure sensor connects includes:

a connector body, wherein the connector body comprises a first connector body, a second connector body and a main body portion, the first connector body and the second connector body integrally extend from the main body portion respectively, the first connector body forms a first channel, and the second connector body forms a second channel; a receiving chamber is formed at one side of the main body, a first communicating hole and a second communicating hole are formed in the receiving chamber by the main body, the first communicating hole is communicated with the first channel, and the second communicating hole is communicated with the second channel; and

a differential pressure sensor assembly, wherein the differential pressure sensor assembly is mounted to the receiving chamber for sensing a pressure differential of the fluid in the first and second passages.

According to the utility model discloses an embodiment, the opposite side of main part forms a first cushion chamber, first cushion chamber passes through first through-hole by with hold the chamber intercommunication, first joint main part be communicate in first cushion chamber, the cross-sectional width in first cushion chamber is greater than first joint main part forms the cross-sectional diameter of first passageway.

According to the utility model discloses an embodiment, the main part forms a second cushion chamber, the second cushion chamber passes through the second intercommunicating pore by with hold the chamber intercommunication, the second connects the main part the second passageway is communicated in the second cushion chamber, the cross-sectional width in second cushion chamber is less than hold the width in chamber and be greater than the cross-sectional diameter in second passageway.

According to the utility model discloses an embodiment, the differential pressure sensor subassembly includes a pressure sensor, a circuit board and at least a pair of electrically conductive piece, pressure sensor set up in hold the chamber, be used for detecting the first passageway with the pressure of liquid in the second passageway, the circuit board is connected electrically pressure sensor with electrically conductive piece, the circuit board can calculate what pressure sensor detected is located the pressure difference of first passageway with the liquid in the second passageway.

According to an embodiment of the present invention, the main body portion integrally extends to form a butt joint portion, wherein the butt joint portion forms a butt joint cavity, and the conductive member is electrically connected to the circuit board and then extends to the butt joint cavity.

According to the utility model discloses an embodiment, the circuit board by with connect the body an organic whole to mould plastics to the gomphosis in connect the body.

According to the utility model discloses an embodiment, differential pressure sensor connects includes an apron, wherein the apron is covered with sealing the main part to can cover with sealing simultaneously first cushion chamber with the second cushion chamber.

According to an embodiment of the present invention, the outer side of the cover plate integrally extends to form an installation passage.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, which proceeds with reference to the accompanying drawings.

Drawings

Fig. 1 shows a perspective view of a differential pressure sensor joint according to the present invention.

Fig. 2 shows an exploded view of a differential pressure sensor joint according to the present invention.

Fig. 3 shows a schematic diagram of a partial structure of a differential pressure sensor joint according to the present invention.

Fig. 4 shows a schematic view of a partial structure of another state of the differential pressure sensor joint according to the present invention.

Detailed Description

The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

A differential pressure sensor connector 100 according to a preferred embodiment of the present invention will be described in detail below with reference to fig. 1 to 4 of the drawings, wherein the differential pressure sensor connector 100 includes a connector body 10 and a differential pressure sensor assembly 20. The connector body 10 includes a first connector main body 11, a second connector main body 12 and a main body 13. The first and second joint

main bodies

11 and 12 integrally extend from the main body 13, respectively. The first connector body 11 defines a first passageway 1101. The second joint body 12 forms a second passage 1201.

One side of the main body 13 forms a receiving cavity 101. The differential pressure sensor assembly 20 is mounted to the receiving chamber 101. The main body portion 13 of the joint body 10 forms a first communication hole 102 and a second communication hole 103 in the housing chamber 101. The first communication hole 102 is provided in communication with the first passage 1101. The second communication hole 103 is provided to communicate with the second passage 1201. The first communication hole 102 is communicated with the second communication hole 103 through the accommodation chamber 101. In this way, the liquid in the first passage 1101 can flow into the second passage 1201 sequentially through the first communication hole 102, the housing chamber 101, and the second communication hole 103.

The differential pressure sensor assembly 20, which is provided in the housing chamber 101, can detect the pressure of the liquid flowing in from the first communication hole 102 and the pressure of the liquid flowing out from the second communication hole 103. And the differential pressure sensor assembly 20 is capable of calculating a corresponding pressure differential. The differential pressure sensor assembly 20 is then capable of outputting an electrical signal related to the pressure differential.

The other side of the main body 13 forms a first buffer chamber 104 and a second buffer chamber 105. The first buffer chamber 104 is communicated with the accommodating chamber 101 through the first communication hole 102. The second buffer chamber 105 is communicated with the housing chamber 101 through the second communication hole 103. The first passage 1101 of the first joint body 11 is communicated with the first buffer chamber 104, wherein the second passage 1201 of the second joint body 12 is communicated with the second buffer chamber 105.

The cross-sectional width of the first buffer chamber 104 is larger than the cross-sectional diameter of the first passage 1101 formed by the first joint body 11. The cross-sectional width of the second buffer chamber 104 is smaller than the width of the accommodating chamber 101 and larger than the cross-sectional diameter of the second passage 1201. In this way, after the fluid flows from the first channel 1101 to the first buffer cavity 104, the first buffer cavity 104 can perform a certain pressure relief function. Likewise, since the cross-sectional width of the second buffer chamber 104 is between the width of the accommodating chamber 101 and the cross-sectional diameter of the second passage 1201, the second buffer chamber 105 can perform a certain buffering function when the fluid flows from the accommodating chamber 101 to the second passage 1201.

While the differential pressure sensor assembly 20 is capable of detecting the pressure of the passing liquid during the fluid flowing from the first channel 1101 to the second channel 1201, so as to detect the change of the pressure of the liquid flowing from the first channel 1101 to the second channel 1201.

The differential pressure sensor assembly 20 includes a pressure sensor 21, a circuit board 22, and at least one pair of conductive members 23. The pressure sensor 21 is disposed in the accommodating chamber 101 to detect the pressure of the liquid in the first channel 1101 and the second channel 1201. The circuit board 22 is electrically connected to the pressure sensor 21 and the conductive member 23. The circuit board 22 is capable of calculating the pressure difference of the liquid in the first channel 1101 and the second channel 1201 detected by the pressure sensor 21.

The conductive member 23 is provided so as to be able to derive a calculation result formed by the circuit board 22.

It is worth integrating that the main body portion 13 integrally extends to form a docking portion 14, wherein the docking portion 14 forms a docking cavity 1401. The conductive member 23 is electrically connected to the circuit board 22 and extends to the docking cavity 1401, so that after an external conductive member is plugged into the docking cavity 1401, the conductive member 23 can be electrically connected to derive the electrical signal related to the pressure difference formed by the circuit board 22.

Preferably, in the present invention, the circuit board 22 is integrally injection-molded with the connector body 10 so as to be fitted to the connector body 10.

More preferably, the differential pressure sensor joint 100 further comprises a cover plate 30, wherein the cover plate 30 is hermetically covered on the main body 13, so as to be capable of hermetically covering the first buffer chamber 104 and the second buffer chamber 105 at the same time.

The outer side of the cover plate 30 is integrally extended to form a mounting passage 301 for a rivet or a screw to pass through to fix the differential pressure sensor joint 100.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A differential pressure sensor junction, wherein said differential pressure sensor junction comprises:

2. The differential pressure sensor joint of claim 1, wherein the other side of the body portion forms a first buffer chamber, the first buffer chamber is communicated with the accommodating chamber through the first communication hole, the first joint body is communicated with the first buffer chamber, and the cross-sectional width of the first buffer chamber is larger than the cross-sectional diameter of the first passage formed by the first joint body.

3. The differential pressure sensor joint according to claim 2, wherein the main body portion forms a second buffer chamber that is communicated with the accommodating chamber through the second communication hole, the second passage of the second joint main body is communicated with the second buffer chamber, and a cross-sectional width of the second buffer chamber is smaller than a width of the accommodating chamber and larger than a cross-sectional diameter of the second passage.

4. The differential pressure sensor joint of claim 3, wherein said differential pressure sensor assembly comprises a pressure sensor disposed in said receiving cavity for sensing the pressure of the fluid in said first and second channels, a circuit board electrically connected to said pressure sensor and said electrically conductive member, and at least a pair of electrically conductive members, said circuit board being capable of calculating the pressure difference of the fluid in said first and second channels sensed by said pressure sensor.

5. The differential pressure sensor connector as claimed in claim 4, wherein the main body portion integrally extends to form a mating portion, wherein the mating portion forms a mating cavity, and the conductive member is electrically connected to the circuit board and extends to the mating cavity.

6. The differential pressure sensor joint as recited in claim 5, wherein said wiring board is integrally injection-molded with said joint body so as to be fitted to said joint body.

7. The differential pressure sensor coupling of claim 6, wherein said differential pressure sensor coupling comprises a cover plate, wherein said cover plate is sealingly closed to said body portion to simultaneously sealingly close said first buffer chamber and said second buffer chamber.

8. The differential pressure sensor adapter of claim 7, wherein an outer side of said cover plate integrally extends to form a mounting channel.