CN216436162U - Grounding structure of sensor detection unit - Google Patents
Grounding structure of sensor detection unit Download PDFInfo
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- CN216436162U CN216436162U CN202123243420.7U CN202123243420U CN216436162U CN 216436162 U CN216436162 U CN 216436162U CN 202123243420 U CN202123243420 U CN 202123243420U CN 216436162 U CN216436162 U CN 216436162U
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- grounding
- sensor detecting
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- detecting unit
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Abstract
The utility model relates to a sensor structure in the car especially relates to the detecting element's of sensor ground structure. The utility model provides a ground structure of sensor detecting element, includes metal casing and plastic connector, is equipped with the sensor detecting element in metal casing, and the sensor detecting element is connected with the PCBA board, is equipped with electric connector on the PCBA board, the one end of electric connector and the circuit connection of PCBA board, electric connector's the other end is connected with the grounding piece, the grounding piece be connected with metal casing, the grounding piece is located metal casing's turn-ups's below. The utility model provides a grounding structure of a sensor detection unit, which can not scratch the shell, has simple assembly structure and high reliability; the technical problems that in the prior art, a conducting strip in a grounding structure of a sensor detection unit is easy to scratch a shell, the installation is inconvenient, and the reliability is low are solved.
Description
Technical Field
The utility model relates to a sensor structure in the car especially relates to the detecting element's of sensor ground structure.
Background
At present, automobiles are applied more and more widely. The number of parts in the automobile gearbox is very large, and the use of sensors for detecting various index conditions of the automobile is also very large. Such as speed sensors, temperature sensors, etc.
An integrated sensor for real-time monitoring of temperature and pressure in an automobile, comprising: the connector, the grounding piece, the external sealing ring, the shell, the internal sealing ring and the ceramic module are used as detection units, sealant, pins and the like. In order to ensure the safety of the circuit, the sensor is generally provided with a metal shell for grounding, and the circuit needs to be electrically connected with the metal shell to realize the grounding of the internal circuit.
In the existing grounding structure, a detection unit circuit is connected with a metal shell through a Z-shaped conducting strip, so that grounding is realized. However, the conductive sheet of this structure easily scratches the housing and is troublesome to assemble.
Disclosure of Invention
The utility model provides a grounding structure of a sensor detection unit, which can not scratch the shell, has simple assembly structure and high reliability; the technical problems that in the prior art, a conducting strip in a grounding structure of a sensor detection unit is easy to scratch a shell, the installation is inconvenient, and the reliability is low are solved.
The above technical problem of the present invention is solved by the following technical solutions: the utility model provides a ground structure of sensor detecting element, includes metal casing and plastic connector, is equipped with the sensor detecting element in metal casing, and the sensor detecting element is connected with the PCBA board, is equipped with electric connector on the PCBA board, the one end of electric connector and the circuit connection of PCBA board, electric connector's the other end is connected with the grounding piece, the grounding piece be connected with metal casing, the grounding piece is located metal casing's turn-ups's below. When the metal shell is installed, when the metal shell is connected with the connector and the flanging edge pressing is carried out, the metal shell is directly contacted with the grounding piece, so that the electric connection is realized. The current of the circuit is led up through the arrangement of the electric connector, so that the grounding sheet can be directly contacted with the flanging of the metal shell. The grounding piece is in surface contact with the metal shell through the flanging, the flanging is directly pressed on the grounding piece, and the metal shell cannot be scratched by the grounding piece. Meanwhile, due to the flanging edge pressing process for wrapping the connector inwards, the metal shell and the grounding sheet are connected more tightly, so that the practical service life of the sensor is prolonged, and the product has good EMC (electro magnetic compatibility) endurance in the whole service life cycle.
Preferably, the electrical connector is a resilient electrical connector. Elastic electric connector can also give an upward pressure to the grounding piece when realizing electric connection, thereby ensuring that the grounding piece is better contacted with the metal shell and improving the connection reliability.
Preferably, the elastic electric connector is a spring, one end of the spring abuts against the PCBA, the other end of the spring abuts against the grounding sheet, and the grounding sheet and the PCBA are parallel to each other. The spring has good elasticity and simple structure.
Preferably, the connecting head is provided with a clamping groove, one end of the clamping groove extends to the flanging of the metal shell, and the grounding sheet is installed in the clamping groove. The grounding piece is clamped in the connector, the installation is convenient, the clamping groove is an open groove with one closed end, the open end faces the metal shell, and the grounding piece is convenient to connect with the metal shell.
Preferably, the grounding sheet is a metal sheet, and the grounding sheet is riveted in the clamping groove. The connection reliability is good.
Preferably, the grounding plate comprises a fixing part and a guide part, the fixing part abuts against the inner wall of the metal shell, and the guide part is inserted into the connecting head. The fixing part is used for fixing the grounding sheet on the annular surface connected with the connector and the metal shell, the fixing part is positioned below the flanging of the metal shell, and the guide part facilitates the insertion of the grounding sheet into the clamping groove in the connector.
Preferably, one side of the fixing part is arc-shaped, and the arc-shaped surface has the same radian with the inner wall of the metal shell. The matching effect is good, surface contact is realized, and the connection reliability is improved.
Preferably, the guide portion is trapezoidal, and a chamfered surface is formed at an end of the guide portion. Convenient insertion and good guidance quality.
Preferably, the sensor detection unit and the PCBA are connected through hole welding.
Therefore, the utility model discloses a sensor detecting element's ground structure possesses following advantage: the spare part installation is simple, only need with in the ground lug riveting to the connector after, when installation metal casing, just can directly realize being connected of circuit board and metal casing through turn-ups blank pressing, realizes ground connection, installation simple process. Meanwhile, the grounding piece is abutted to the turned-over edge of the metal shell through the elasticity of the spring, so that the connection reliability is improved, and the stability is good. The grounding piece and the spring can be automatically assembled with the connector, so that the assembly is rapid and efficient, and the quality is high.
Drawings
Fig. 1 is a sectional view of a ground structure of a sensor detecting unit.
Fig. 2 is an exploded view of the interconnect and ground plate of fig. 1.
Fig. 3 is a perspective view of the inner contact patch of fig. 1.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
as shown in fig. 1, 2 and 3, a grounding structure of a sensor detection unit comprises a metal shell 5 and a plastic connector 1, wherein the lower end of the plastic connector 1 is installed in an installation cavity 14 of the metal shell 5, the lower end of the plastic connector 1 is provided with an installation cavity for installing a detection unit 7, and a sealing element 8 is arranged between the detection unit 7 and a first installation cavity inner plane at the lower end of the plastic connector 1. PCBA board 6 is installed to the detection element 7 top, and sensor detection element 7 passes through the through-hole welding with PCBA board 6 and is connected. A circuit is installed on the PCBA 6, an accommodating cavity 13 is formed above an electric connection point of the circuit, and a spring 4 is installed in the accommodating cavity 13. The plastic connector 1 is provided with a clamping groove 9, the clamping groove 9 is an open groove with one closed end, and the open end of the clamping groove 9 extends to the flanging 3 of the metal shell. And a metal grounding sheet 2 is riveted in the clamping groove 9. One end of the spring 4 is connected with the circuit of the PCBA board 6, and the other end of the spring 4 is connected with the grounding piece 2. The grounding piece 2 comprises a fixing portion 10 and a guide portion 11, one side of the fixing portion 10 is arc-shaped, the arc-shaped surface is the same as the radian of the inner wall of the metal shell 5, and the fixing portion 10 abuts against the inner wall of the metal shell 5. The guide part 11 is trapezoidal, a chamfer surface 12 is processed at the end part of the guide part 11, and the guide part 11 is inserted into the clamping groove 9 of the plastic connector.
Claims (9)
1. The utility model provides a sensor detecting element's ground structure, includes metal casing and plastic connector, is equipped with sensor detecting element, its characterized in that in metal casing: the sensor detection unit is connected with the PCBA board, is equipped with electric connector on the PCBA board, the one end of electric connector and the circuit connection of PCBA board, electric connector's the other end is connected with the grounding lug, the grounding lug be connected with metal casing, the grounding lug is located the turn-ups's of metal casing below.
2. The grounding structure of the sensor detecting unit according to claim 1, wherein: the electric connecting piece is an elastic electric connecting piece.
3. The grounding structure of the sensor detecting unit according to claim 2, wherein: the elastic electric connecting piece is a spring, one end of the spring is abutted to the PCBA, the other end of the spring is abutted to the grounding piece, and the grounding piece is parallel to the PCBA.
4. The grounding structure of the sensor detecting unit according to claim 1, 2 or 3, wherein: the connecting head is provided with a clamping groove, one end of the clamping groove extends to the flanging position of the metal shell, and a grounding piece is arranged in the clamping groove.
5. The grounding structure of the sensor detecting unit according to claim 4, wherein: the grounding piece is a metal sheet and is riveted in the clamping groove.
6. The grounding structure of the sensor detecting unit according to any one of claims 1 to 3, wherein: the grounding piece comprises a fixing part and a guide part, the fixing part is abutted to the inner wall of the metal shell, and the guide part is inserted into the connector.
7. The grounding structure of the sensor detecting unit according to claim 6, wherein: one side of the fixing part is arc-shaped, and the arc-shaped surface has the same radian with the inner wall of the metal shell.
8. The grounding structure of the sensor detecting unit according to claim 6, wherein: the guide part is trapezoidal, and the end of the guide part is processed with a chamfer surface.
9. The grounding structure of the sensor detecting unit according to claim 1, 2 or 3, wherein: the sensor detection unit is connected with the PCBA through hole welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123243420.7U CN216436162U (en) | 2021-12-22 | 2021-12-22 | Grounding structure of sensor detection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123243420.7U CN216436162U (en) | 2021-12-22 | 2021-12-22 | Grounding structure of sensor detection unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216436162U true CN216436162U (en) | 2022-05-03 |
Family
ID=81320090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123243420.7U Active CN216436162U (en) | 2021-12-22 | 2021-12-22 | Grounding structure of sensor detection unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216436162U (en) |
-
2021
- 2021-12-22 CN CN202123243420.7U patent/CN216436162U/en active Active
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