CN-224204392-U - Sensor connecting assembly with golden finger structure and pressure sensor

Abstract

The utility model relates to a sensor connecting component with a golden finger structure and a pressure sensor, wherein the sensor connecting component is limited in a mounting cavity defined by a sensing element and a mounting shell, the bottom of a PCB is specifically supported on an axial bearing part of a supporting ring, the top of the PCB is contacted with the inner wall of the top of the mounting shell, so that the movement of the PCB and the sensor connecting component in the mounting cavity is limited, the connection stability of the pressure sensor is ensured, the connecting section of the PCB is provided with a conductive contact piece with the golden finger structure, the conductive contact piece is connected with an MCU, the connection stability of the pressure sensor is ensured, and the problems that the conventional spring connecting mode is easy to generate poor contact and easy to bend and break are avoided.

Inventors

• ZHAO XIAODONG
• LI HONGLI

Assignees

• 敏之捷传感科技(常州)有限公司

Dates

Publication Date

20260505

Application Date

20250410

Claims (10)

1. 1. A sensor connection assembly having a golden finger structure is characterized by being at least partially axially retained within a mounting cavity defined by a sensing element and a mounting housing, the sensor connection assembly comprising: One end of the supporting ring is connected with the sensing element, the other end of the supporting ring is connected with the mounting shell, and the middle part of the supporting ring is provided with an axial bearing part along the circumferential extension of the supporting ring; the bottom of the PCB is arranged on the axial bearing part, the plug-in section at the top of the PCB passes through the through hole formed in the mounting shell, the shoulder of the PCB is contacted with the inner wall of the top of the mounting shell, and the part of the PCB positioned in the mounting cavity is electrically connected with the strain gauge on the sensing element; and the conductive contact piece is arranged at the plugging section of the PCB.
2. 2. The sensor connection assembly with a golden finger structure of claim 1, wherein the conductive contacts are disposed on two opposite sides of the plugging section.
3. 3. The sensor connecting assembly with the golden finger structure of claim 1, wherein the PCB is distributed into a first surface and a second surface which are oppositely arranged, and when the PCB is arranged on the axial bearing part, at least a limiting part which is in surface contact with the first surface or/and the second surface is arranged on the supporting ring.
4. 4. The sensor connection assembly with the golden finger structure of claim 1, wherein the support ring is provided with a plurality of lightening holes.
5. 5. The sensor connection assembly with the golden finger structure according to claim 1, wherein the two sides of the bottom of the PCB board are provided with notch parts matched with the axial bearing parts.
6. 6. A pressure sensor comprising the sensor connection assembly with golden finger structure of any one of claims 1-5, further comprising a sensor element and a mounting housing connected to each other.
7. 7. The pressure sensor of claim 6, wherein the mounting housing comprises: A main housing having an inner cavity penetrating along an axial direction thereof; And the installation framework is installed in the inner cavity of the main shell and positioned at the top of the inner cavity, and the middle part of the installation framework is provided with the through hole in a penetrating way.
8. 8. The pressure sensor of claim 7, wherein a sealing groove for glue filling is formed in the upper surface of the mounting framework, and the through hole is formed in the sealing groove in a penetrating manner.
9. 9. The pressure sensor of claim 7, wherein the lower surface of the mounting frame is provided with a radially penetrating limit groove, the shoulder is disposed in the limit groove, and the top of the shoulder contacts the bottom of the limit groove.
10. 10. A pressure sensor according to claim 7, wherein the sensor element peripheral wall is formed with a first limit step for abutment with the main housing and a second limit step for abutment with the support ring.

Description

Sensor connecting assembly with golden finger structure and pressure sensor Technical Field The utility model relates to the field of pressure sensors, in particular to a sensor connecting assembly with a golden finger structure and a pressure sensor. Background The electrical connection mode of the pressure sensor adopting the connector is common (such as a connector, a cable and the like), but the electrical connection mode adopting the common piece is inapplicable to small-size sensors in the requirement of small space of customer arrangement, if the spring contact mode is adopted, the problem of space arrangement can be solved, but the spring is easy to generate poor contact, the spring moves to generate bending fracture, the failure rate is high, and if the cable connection mode is adopted, the cost is higher, the time investment is larger, and the pressure sensor is inapplicable to mass production. In a word, how to arrange the pressure sensor in a narrow space, and the problems that the spring is easy to generate poor contact and easy to bend and break are solved, and the problems are urgently needed to be solved by researchers in the field. Disclosure of utility model The utility model aims to solve the technical problem of how to arrange a pressure sensor in a narrow space; in order to solve the technical problems, the utility model adopts the following technical scheme: The utility model relates to a sensor connecting assembly with a golden finger structure, which is at least partially axially limited in a mounting cavity defined by a sensing element and a mounting shell, wherein the sensor connecting assembly comprises a supporting ring, a PCB (printed circuit board) and a conductive contact piece, one end of the supporting ring is connected with the sensing element, the other end of the supporting ring is connected with the mounting shell, an axial bearing part is arranged at the middle of the supporting ring in a circumferential extension mode, the bottom of the PCB is arranged on the axial bearing part, a plug section at the top of the PCB passes through a through hole formed in the mounting shell, the shoulder of the PCB is in contact with the inner wall at the top of the mounting shell, the part of the PCB positioned in the mounting cavity is electrically connected with a strain gauge on the sensing element, and the conductive contact piece is arranged at the plug section of the PCB. Further, the conductive contact pieces are arranged on two side surfaces of the plug-in section, which are oppositely arranged. When the PCB is placed on the axial bearing part, at least a limiting part in surface contact with the first surface or/and the second surface is arranged on the supporting ring. Further, a plurality of lightening holes are formed in the supporting ring. Further, notch parts matched with the axial bearing parts are formed on two sides of the bottom of the PCB. The scheme also discloses a pressure sensor, including sensor coupling assembling, interconnect's sensing element, installation shell. The mounting shell comprises a main shell body and a mounting framework, wherein the main shell body is provided with an inner cavity penetrating along the axial direction of the main shell body, the mounting framework is mounted in the inner cavity of the main shell body and is positioned at the top of the inner cavity, and the middle of the mounting framework is provided with the through hole in a penetrating mode. Further, a sealing groove for glue filling is formed in the upper surface of the mounting framework, and the through hole is formed in the sealing groove in a penetrating mode. Further, a radial through limit groove is formed in the lower surface of the installation framework, the shoulder is arranged in the limit groove, and the top of the shoulder is in contact with the bottom of the limit groove. Further, the outer peripheral wall of the sensor element is formed with a first limit step for abutting against the main casing and a second limit step for abutting against the support ring. The utility model relates to a sensor connecting component with a golden finger structure and a pressure sensor, wherein the sensor connecting component is limited in a mounting cavity defined by a sensing element and a mounting shell, the bottom of a PCB is specifically supported on an axial bearing part of a supporting ring, the top of the PCB is contacted with the inner wall of the top of the mounting shell, so that the movement of the PCB and the sensor connecting component in the mounting cavity is limited, the connection stability of the pressure sensor is ensured, and a PCB plug section is provided with a conductive contact piece with a golden finger structure, so that the connection stability of the pressure sensor is ensured, and the problems of poor contact and easy bending and fracture are avoided. Drawings The utility model will be further described with reference to the drawings and example