Electric conductor for pressure sensor

Abstract

The utility model relates to the technical field of pressure sensors, in particular to an electric conductor for a pressure sensor, which comprises a first electric connecting part, an elastic supporting part, a non-elastic supporting part and a second electric connecting part which are connected in sequence, the first electric connecting part, the elastic supporting part and the non-elastic supporting part are connected with one another to form a spiral spring shape; the first electric connection part is used for being electrically connected with the outside; the elastic support part is used for elastically supporting the first electric connection part; the non-elastic supporting part is used for rigidly supporting the elastic supporting part; and the second electric connection part is used for electrically connecting a conditioning signal circuit board in the sensor. The electric conductor is simple in structure, and can ensure that the first electric connection part electrically connected with the outside has the characteristic of elastic connection for a long time, so that the problem of poor contact is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, in particular to a conductor used for a pressure sensor. Background Art

[0002] Brake pressure sensors are used in ESC systems (electronic stability control systems) and are mainly installed on hydraulic control modules to monitor the pressure of brake fluid. Traditional pressure sensors involve several circuit boards with functional modules, and as the core signal conditioning circuit board, it is mainly used to realize the collection, processing and external output of pressure signals. Therefore, not only multiple functional components are connected to its body, but it is also necessary to electrically connect the circuit board to the external system through conductive parts in order to collect or process the signals collected or processed by each functional unit on the circuit board.

[0003] Currently, the common conductors used to conduct electricity inside and outside the sensor are mostly in the form of spring terminals, but after long-term use, it is very easy for the springs to deform and cause poor contact; another way is to use cable plus spot welding, which not only relies heavily on manpower and has low assembly efficiency; but also in the later use of the pressure sensor, it is very easy for the welding points to fall off due to transportation or external vibration, which invisibly reduces the service life of the pressure sensor, and maintenance requires comprehensive disassembly.

[0004] Therefore, a technology is urgently needed to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and provide a conductor for a pressure sensor, so as to solve the technical problems that the prior art uses spring clips for conductive connection inside and outside the sensor, which is prone to poor contact, and the use of cable spot welding has high labor dependence, low assembly efficiency, and welding points are prone to disconnection at a later stage, thereby reducing the service life of the product.

[0006] The above objectives are achieved through the following technical solutions:

[0007] An electrical conductor for a pressure sensor, comprising a first electrical connection portion, an elastic support portion, a non-elastic support portion, and a second electrical connection portion connected in sequence, wherein the first electrical connection portion, the elastic support portion, and the non-elastic support portion are connected to each other to form a spiral spring shape;

[0008] The first electrical connection portion is used for electrical connection with the outside;

[0009] The elastic support portion is used to elastically support the first electrical connection portion;

[0010] The non-elastic support portion is used to rigidly support the elastic support portion;

[0011] The second electrical connection portion is used to electrically connect the conditioning signal circuit board inside the sensor.

[0012] Furthermore, the axes of the first electrical connection portion, the elastic support portion and the non-elastic support portion are located on the same axis.

[0013] Furthermore, the spring wires constituting the first electrical connection portion, the elastic support portion, and the non-elastic support portion have the same diameter.

[0014] Furthermore, the second electrical connection portion is a conductive pin, and the connection portion between the top of the conductive pin and the non-elastic support portion is located at the axial center of the non-elastic support portion.

[0015] Furthermore, the conductive pins are right-angle pins.

[0016] Further, the length of the elastic support portion is greater than the length of the first electrical connection portion, and the length of the first electrical connection portion is greater than the length of the non-elastic support portion.

[0017] Further, the pitch of the elastic support portion is greater than the pitch of the first electrical connection portion, and the pitch of the first electrical connection portion is greater than the pitch of the non-elastic support portion.

[0018] Further, the outer diameter of the elastic support portion is greater than the outer diameter of the first electrical connection portion, and the outer diameter of the first electrical connection portion is equal to the outer diameter of the non-elastic support portion.

[0019] Furthermore, a limit buffer portion is provided between the first electrical connection portion and the elastic support portion. The limit buffer portion is in the shape of a coil spring, and the outer diameter of the limit buffer portion gradually decreases from the elastic support portion to the first electrical connection portion.

[0020] Furthermore, the pitch of the position-limiting buffer portion is smaller than the pitch of the first electrical connecting portion.

[0021] Beneficial Effects

[0022] The conductor for the pressure sensor provided by the utility model adopts a cylindrical helical spring shape to replace the traditional spring sheet form, and sets the corresponding first electrical connection part, elastic support part, non-elastic support part and second electrical connection part from top to bottom according to the function, which not only solves the problem of connection with the conditioning signal circuit board inside the sensor and elastic connection with the outside, but also is easy to install and can effectively improve the assembly efficiency of the conductor. The conductor is not only simple in structure, but also can ensure that the first electrical connection part electrically connected to the outside has the characteristics of elastic connection for a long time, so the problem of poor contact will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a conductor used for a pressure sensor according to the utility model from a first viewing angle;

[0024] Figure 2 This is a schematic diagram of a conductor for a pressure sensor according to the utility model from a second viewing angle;

[0025] Figure 3 This is a second viewing angle schematic diagram of the conductor used for the pressure sensor of the utility model;

[0026] Figure 4 This is a schematic diagram of the application of the conductor used for the pressure sensor of the utility model.

[0027] Graphic marking:

[0028] 1-first electrical connection part, 2-elastic support part, 3-non-elastic support part, 4-second electrical connection part, 5-limiting buffer part, 6-conductor support, 7-conductor limiting cover, 8-conductor plug hole, 9-conical hole, 10-conditioning signal circuit board. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 4 As shown, the present solution provides a conductor for a pressure sensor, comprising a first electrical connection portion 1, an elastic support portion 2, a non-elastic support portion 3, and a second electrical connection portion 4 connected in sequence, wherein the first electrical connection portion 1, the elastic support portion 2, and the non-elastic support portion 3 are connected to each other to form a spiral spring shape;

[0031] The first electrical connection portion 1 is used for electrical connection with the outside;

[0032] The elastic support portion 2 is used to elastically support the first electrical connection portion;

[0033] The non-elastic support portion 3 is used to rigidly support the elastic support portion;

[0034] The second electrical connection portion 4 is used to electrically connect the conditioning signal circuit board 10 inside the sensor;

[0035] The conductor for the pressure sensor provided in this solution is mainly used to realize the internal and external electrical connection of the pressure sensor, which is connected through the conductor support 6 with the conductor plug hole 8, and the specific form is as follows:

[0036] like Figure 4 As shown, the elastic support portion 2 and the non-elastic support portion 3 are placed in the conductor plug-in hole 8, the first electrical connection portion 1 passes through the conductor plug-in hole 8 and extends to the upper outer side of the conductor plug-in hole 8 for electrical connection with the outside; the second electrical connection portion 4 passes through the conductor plug-in hole 8 and extends to the lower outer side of the conductor plug-in hole 8 for electrical connection to the sensor internal conditioning signal circuit board 10.

[0037] This solution also optimizes each part as follows:

[0038] The axes of the first electrical connection portion 1 , the elastic support portion 2 and the non-elastic support portion 3 are located on the same axis.

[0039] The spring wires constituting the first electrical connection part 1, the elastic support part 2, and the non-elastic support part 3 have the same diameter; this structure can ensure that the resistance of each part of the conductor is the same, and the transmission of current or signal is more stable after electrical connection.

[0040] The length of the elastic support portion 2 is greater than that of the first electrical connection portion 1 , and the length of the first electrical connection portion 1 is greater than that of the non-elastic support portion 3 .

[0041] The pitch of the elastic support portion 2 is greater than the pitch of the first electrical connection portion 1 , and the pitch of the first electrical connection portion 1 is greater than the pitch of the non-elastic support portion 3 .

[0042] The outer diameter of the elastic support portion 2 is greater than the outer diameter of the first electrical connection portion 1 , and the outer diameter of the first electrical connection portion 1 is equal to the outer diameter of the non-elastic support portion 3 .

[0043] like Figures 1 to 4 As shown, in this embodiment, the second electrical connection part 4 is a conductive pin, and the connection part between the top of the conductive pin and the non-elastic support part 3 is located at the axial position of the non-elastic support part 3; correspondingly, the conditioning signal circuit board 10 inside the sensor is in the form of a pin to achieve precise contact with the pad on the conditioning signal circuit board 10. In addition, in order to improve the firmness, it is also convenient to carry out spot welding.

[0044] As an optimization of the conductive pin described in this embodiment, the conductive pin is a right-angle pin. The use of the right-angle pin can realize lateral electrical connection of the vertically placed conditioning signal circuit board 10. This structure can facilitate electrical connection and spot welding.

[0045] As a further optimization of this solution, a limit buffer portion 5 is further provided between the first electrical connection portion 1 and the elastic support portion 2. The limit buffer portion 5 is in the shape of a coil spring, and the outer diameter gradually decreases from the elastic support portion 2 to the first electrical connection portion 1.

[0046] Specifically, the conical limiting buffer portion 5 in this embodiment can better cooperate with the conical hole 9 provided on the conductor limiting cover 7 arranged on the top of the conductor support 6 to achieve flexible contact when the first electrical connection portion 1 is electrically connected to the outside.

[0047] It should be noted that, in this embodiment, the pitch of the position limiting buffer portion 5 is smaller than the pitch of the first electrical connecting portion 1 .

[0048] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrical conductor for a pressure sensor, characterized in that: The invention comprises a first electrical connection part (1), an elastic support part (2), a non-elastic support part (3) and a second electrical connection part (4) which are connected in sequence, wherein the first electrical connection part (1), the elastic support part (2) and the non-elastic support part (3) are connected to each other to form a spiral spring shape; The first electrical connection portion (1) is used for electrical connection with the outside; The elastic support portion (2) is used to elastically support the first electrical connection portion; The non-elastic support part (3) is used to rigidly support the elastic support part; The second electrical connection portion (4) is used to electrically connect a conditioning signal circuit board (10) inside the sensor.

2. The conductor for a pressure sensor according to claim 1, characterized in that: The axes of the first electrical connection portion (1), the elastic support portion (2) and the non-elastic support portion (3) are located on the same axis.

3. The conductor for a pressure sensor according to claim 1 or 2, characterized in that: The spring wires constituting the first electrical connection portion (1), the elastic support portion (2), and the non-elastic support portion (3) have the same diameter.

4. The conductor for a pressure sensor according to claim 3, characterized in that: The second electrical connection portion (4) is a conductive pin, and the connection portion between the top of the conductive pin and the non-elastic support portion (3) is located at the axial center of the non-elastic support portion (3).

5. The conductor for a pressure sensor according to claim 4, characterized in that: The conductive pins are right-angle pins.

6. The conductor for a pressure sensor according to claim 1 or 2, characterized in that: The length of the elastic support portion (2) is greater than the length of the first electrical connection portion (1), and the length of the first electrical connection portion (1) is greater than the length of the non-elastic support portion (3).

7. The conductor for a pressure sensor according to claim 6, characterized in that: The pitch of the elastic support portion (2) is greater than the pitch of the first electrical connection portion (1), and the pitch of the first electrical connection portion (1) is greater than the pitch of the non-elastic support portion (3).

8. The electrical conductor for a pressure sensor according to claim 6, characterized in that: The outer diameter of the elastic support part (2) is greater than the outer diameter of the first electrical connection part (1), and the outer diameter of the first electrical connection part (1) is equal to the outer diameter of the non-elastic support part (3).

9. The conductor for a pressure sensor according to claim 1, characterized in that: A limit buffer portion (5) is also provided between the first electrical connection portion (1) and the elastic support portion (2); the limit buffer portion (5) is in the shape of a spiral spring, and the outer diameter gradually decreases from the elastic support portion (2) to the first electrical connection portion (1).

10. The electrical conductor for a pressure sensor according to claim 9, characterized in that: The pitch of the position limiting buffer portion (5) is smaller than the pitch of the first electrical connecting portion (1).

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