CN218121243U

CN218121243U - Pressure transmitter structure

Info

Publication number: CN218121243U
Application number: CN202222067600.2U
Authority: CN
Inventors: 王舟兴; 葛忠; 李丽祥; 金玲珑
Original assignee: Zhejiang Lifu Sensing Technology Co ltd
Current assignee: Zhejiang Lifu Sensing Technology Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-23
Anticipated expiration: 2032-08-04

Abstract

The utility model relates to a changer technical field discloses a pressure transmitter structure, including a pressure transmitter structure, include electrical connection, base, establish the core in the base, characterized by, electrical connection's the inner is fixed with a plurality of electrically conductive bullet needles, and every electrically conductive one end of bullet needle corresponds with participating in the electrical connection and is connected, the surface of chip is equipped with a plurality of electrically conductive diaphragms with electrically conductive bullet needle elastic electrical contact. The utility model discloses have that the installation is more convenient, the installation effectiveness is high, the yields is higher beneficial effect.

Description

Pressure transmitter structure

Technical Field

The utility model relates to a changer technical field especially relates to a pressure transmitter structure.

Background

The pressure transmitter is used for measuring the pressure of fluid media in testing systems such as fire fighting, water treatment, water supply systems, pneumatic devices, industrial braking, refrigeration and air conditioning and the like. The core body and the electrical connector (pick head) in the existing small-volume pressure transmitter are connected through a flexible Printed Circuit Board (PCB), the flexible PCB is firstly welded on the surface of the core body during installation, the flexible PCB is integrally assembled in a base, the electrical connector and the flexible PCB are welded together, and finally the electrical connector is connected with the base. This kind of mounting means is more loaded down with trivial details, the installation effectiveness is low, and the high temperature that produces when soft PCB board and core welding moreover can lead to the core precision to reduce, and soft PCB board tears apart easily in the installation, also leads to soft PCB board to be torn apart easily when opening the connector when detecting the core to lead to the finished product defective rate high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an above-mentioned problem that the pressure transmitter among the solution prior art exists provides a pressure transmitter structure that the installation is more convenient, the installation effectiveness is high, the yields is higher.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pressure transmitter structure comprises an electrical connector, a base and a core body arranged in the base, wherein a plurality of conductive elastic needles are fixed at the inner end of the electrical connector, one end of each conductive elastic needle is correspondingly connected with a pin in the electrical connector, and a plurality of conductive diaphragms in elastic electrical contact with the conductive elastic needles are arranged on the surface of a chip. Set up electrically conductive diaphragm on the core surface, participate in the electrical connector and be connected through electrically conductive bullet needle and electrically conductive diaphragm between the electrical contact to saved the welding process of PCB board, it is all very convenient to connect and dismantle between electrical connector, core, the base, and whole installation effectiveness improves, and the chip detects also more conveniently, and then improves whole yields.

Preferably, a PCB film is arranged on the surface of the core body, and the conductive membrane is printed on the PCB film. A conductive film (similar to a pad) is printed directly on the PCB film, which is then glued to the surface of the core.

Preferably, the conductive elastic needle comprises an elastic needle body and an elastic arm formed by extending the rear end of the elastic needle body, the front end of the elastic needle body is connected with the pin into a whole, and the rear end of the elastic arm is provided with a conductive boss in elastic electrical contact with the conductive membrane. The conductive elastic needle and the pin are of an integrated structure and are connected with the electrical connector into a whole; the elastic arm has elasticity, ensures the stable electricity of electrically conductive boss and the electrically conductive diaphragm on the PCB membrane and is connected, and the circular telegram can reduce the installation accuracy requirement of core.

Preferably, the inner of electrical joint is equipped with the core holding ring, the core is connected with core holding ring joint, be equipped with a plurality of connecting holes on the core holding ring, the inner of electrical joint be equipped with connecting hole complex spliced pole.

Preferably, an end face seal ring is arranged between the core body and the base. The end face seal ring plays a role in end face sealing and prevents external water vapor from entering the core body.

Preferably, the inner end of the base extends to form a connecting sleeve sleeved outside the electrical connector, and a side sealing ring is arranged between the side surface of the electrical connector and the connecting sleeve. The side sealing ring enhances the connection sealing performance between the connecting sleeve and the electric joint.

Therefore, the utility model discloses it is more convenient, the installation effectiveness is high, the yields is higher beneficial effect to have the installation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure: the electric connector comprises an electric connector 1, a connecting column 10, a base 2, a connecting sleeve 20, a core body 3, a conductive membrane 31, a PCB film 30, a conductive elastic needle 4, an elastic needle body 40, an elastic arm 41, a conductive boss 42, a pin 5, a core body positioning ring 6, a connecting hole 60, an end face sealing ring 7 and a side face sealing ring 8.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1-3, the pressure transmitter structure includes an electrical connector 1, a base 2, and a core 3 disposed in the base, wherein a plurality of conductive elastic pins 4 are fixed at an inner end of the electrical connector 1, one end of each conductive elastic pin 4 is correspondingly connected to a pin 5 in the electrical connector, a PCB film 30 is disposed on a surface of the core 3, and a plurality of conductive diaphragms 31 are disposed on the PCB film and are in elastic electrical contact with the other end of the conductive elastic pin. A conductive membrane 31 is printed directly on the PCB film, similar to a pad of a circuit board on the PCB film.

As shown in fig. 2 and 4, the conductive pogo pin 4 includes a pogo pin body 40, and an elastic arm 41 formed by extending the rear end of the pogo pin body, the front end of the pogo pin body 40 is integrally connected with the pin 5, and the rear end of the elastic arm 41 is provided with a conductive boss 42 in elastic electrical contact with the conductive film.

The inner end of the electrical connector 1 is provided with a core positioning ring 6, the core 3 is connected with the core positioning ring 6 in a clamping manner, the core positioning ring 6 is provided with a plurality of connecting holes 60, and the inner end of the electrical connector 1 is provided with a connecting column 10 matched with the connecting holes; an end face sealing ring 7 is arranged between the core body 3 and the base 2, the inner end of the base 2 extends to form a connecting sleeve 20 which is sleeved outside the electric connector, and a side face sealing ring 8 is arranged between the side face of the electric connector and the connecting sleeve.

With the attached drawings, the principle of the utility model is as follows: integrating a PCB film on the surface of a core body, connecting the core body with a core body positioning ring and then with an electrical connector, electrically connecting a pin in the electrical connector with a conductive contact piece on the PCB film on the surface of the core body through a conductive elastic needle in a contact manner, and finally connecting the electrical connector with a base; the welding process of the PCB is omitted in the whole process, the elastic electric contact of the conductive elastic needle is realized, the connection and the disassembly among the electric connector, the core body and the base are very convenient, the integral installation efficiency is improved, the chip detection is more convenient, and the integral yield is improved.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the upper, lower, left, right, inner end, outer end, one end, the other end, etc. are directions or positional relationships based on the drawings, and are only for the sake of clarity and convenience of description of the technical solution of the present invention, but do not indicate or suggest that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as a limitation of the present invention.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A pressure transmitter structure comprises an electrical connector, a base and a core body arranged in the base, and is characterized in that a plurality of conductive elastic needles are fixed at the inner end of the electrical connector, one end of each conductive elastic needle is correspondingly connected with a pin in the electrical connector, and a plurality of conductive diaphragms which are in elastic electrical contact with the conductive elastic needles are arranged on the surface of the core body.

2. The pressure transmitter architecture of claim 1 wherein the surface of the core is provided with a PCB film and the conductive diaphragm is printed on the PCB film.

3. The pressure transmitter structure of claim 1, wherein the conductive pogo pin comprises a pogo pin body, and a resilient arm extending from a rear end of the pogo pin body, wherein a front end of the pogo pin body is integrally connected to the pin, and a conductive protrusion is provided at a rear end of the resilient arm for resiliently contacting the conductive contact piece.

4. A pressure transmitter structure according to claim 1, 2 or 3, characterized in that a core body positioning ring is provided at the inner end of the electrical connector, the core body is connected with the core body positioning ring in a clamping manner, a plurality of connecting holes are provided on the core body positioning ring, and a connecting post matched with the connecting hole is provided at the inner end of the electrical connector.

5. The pressure transmitter architecture of claim 4 wherein an end seal is provided between the core and the base.

6. The pressure transmitter structure of claim 1, wherein the inner end of the base extends to form a connection sleeve that is sleeved outside the electrical connector, and a side sealing ring is disposed between the side surface of the electrical connector and the connection sleeve.