Spring terminal structure for sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a spring terminal structure for a sensor, which comprises an external electric connecting part, a terminal reversing part and an internal electric connecting part which are mutually connected, one side of the terminal reversing part is connected with the external electric connecting part, and the other side of the terminal reversing part is connected with the internal electric connecting part; the outer electric connection part and the inner electric connection part are respectively perpendicular to the terminal reversing part, and the axis of the outer electric connection part and the axis of the inner electric connection part are not collinear. The spring terminal structure is not only simple in structure, but also easy to process, does not affect the transmission of current, voltage or data, and can effectively improve the application scene of the sensor.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a spring terminal structure for a sensor. Background Technology

[0002] The brake pressure sensor is a crucial component of a vehicle's braking system, performing several key functions. For example, it controls the hydraulic pressure in braking systems with hydraulic boosters, ensuring efficient operation. It also detects the pressure in the accumulator, issuing an immediate alarm to alert the driver of any abnormal pressure. Furthermore, the brake pressure sensor senses the opening and closing signals of the hydraulic pump, ensuring it operates at the appropriate time and monitoring real-time changes in hydraulic pressure within the braking system, thus contributing to vehicle braking safety.

[0003] Spring terminals, due to their elasticity, are commonly used as conductive terminals for electrical connections in sensors. They enable flexible connection with external devices, preventing damage to external devices and internal circuit boards. Existing spring terminals are typically single-line type. In use, three spring terminals are usually combined to form a ring-shaped end face that matches the insertion hole. In this configuration, the electrical connection ends of the spring terminals remain horizontal.

[0004] However, when the distance between the three electrical connection terminals inside the socket is greater than or less than the distance between the three spring terminals, the only option is to open a new mold and reconfigure a sensor to match it, which will result in high development costs.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the problems of the prior art and provide a spring terminal structure for a sensor. This solves the technical problem that if the distance between the three electrical connection terminals inside the plug hole of the device to be connected is greater than or less than the distance between the three spring terminals on the sensor, then a new sensor that matches it can only be redesigned by opening a mold. This situation leads to high development costs.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A spring terminal structure for a sensor includes an external electrical connection portion, a terminal switching portion, and an internal electrical connection portion connected to each other. One side of the terminal switching portion is connected to the external electrical connection portion, and the other side of the terminal switching portion is connected to the internal electrical connection portion. The external electrical connection portion and the internal electrical connection portion are perpendicular to the terminal switching portion, and the axes of the external electrical connection portion and the internal electrical connection portion are not collinear.

[0009] Furthermore, the external electrical connection part, the terminal switching part, and the internal electrical connection part are all made of the same steel wire.

[0010] Furthermore, the external electrical connection part has the same specifications as the internal electrical connection part.

[0011] Furthermore, the external power connection part includes an external power plug and an external power elastic support part that are connected to each other, and the external power elastic support part is connected to one side of the terminal switching part; the internal power connection part includes an internal power plug and an internal power elastic support part that are connected to each other, and the internal power elastic support part is connected to the other side of the terminal switching part.

[0012] Furthermore, the pitch of the external electrical connector and the internal electrical connector is 0; the pitch of the external electrical elastic support and the internal electrical elastic support is greater than 0.

[0013] Furthermore, the outer diameter of the external electrical connector is smaller than the outer diameter of the external electrical elastic support, and the outer diameter of the internal electrical connector is smaller than the outer diameter of the internal electrical elastic support.

[0014] Furthermore, the length of the external electrical connector is less than the length of the external electrical elastic support, and the length of the internal electrical connector is less than the length of the internal electrical elastic support.

[0015] Furthermore, an external power limiting buffer is provided between the external power plug and the external power elastic support. The external power limiting buffer is in the shape of a helical spring, and its outer diameter gradually decreases from the external power elastic support to the external power plug.

[0016] Furthermore, an internal electrical limiting buffer is provided between the internal electrical plug-in part and the internal electrical elastic support part. The internal electrical limiting buffer part is in the shape of a helical spring, and its outer diameter gradually decreases from the internal electrical elastic support part to the internal electrical plug-in part.

[0017] Furthermore, the pitch of the external electric limiting buffer is smaller than the pitch of the external electric elastic support, and the pitch of the internal electric limiting buffer is smaller than the pitch of the internal electric elastic support. Beneficial effects

[0018] This utility model provides a spring terminal structure for sensors. It facilitates connection to external devices through an external electrical connection part and facilitates electrical connection to the sensor's internal circuit board through an internal electrical connection part. Furthermore, a terminal switching part is provided between the external and internal electrical connection parts, and the distance between the two parts is adjusted by controlling the length of the switching part. Ultimately, this allows for the satisfaction of external device connection requirements simply by replacing different spring terminals. This spring terminal structure is not only simple in structure but also easy to manufacture, does not affect the transmission of current, voltage, or data, and effectively expands the application scenarios of sensors. Attached Figure Description

[0019] Figure 1 This is a perspective view of a spring terminal structure for a sensor according to the present invention;

[0020] Figure 2 This is a side view of a spring terminal structure for a sensor according to the present invention;

[0021] Figure 3 This is a top view of a spring terminal structure for a sensor according to the present invention;

[0022] Figure 4 This is a schematic diagram of the application of the spring terminal structure for a sensor described in this utility model to the electrical connection end face of the sensor.

[0023] Illustration markings:

[0024] 1-External power connection part, 101-External power plug-in part, 102-External power elastic support part, 103-External power limiting buffer part;

[0025] 2-Terminal switching section;

[0026] 3-Internal power connection part, 301-Internal power plug-in part, 302-Internal power elastic support part, 303-Internal power limiting buffer part;

[0027] 4-Virtual circle of internal electricity;

[0028] 5- External power virtual circle. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] like Figures 1-3As shown, a spring terminal structure for a sensor includes an external power connection part 1, a terminal switching part 2, and an internal power connection part 3 that are connected to each other. One side of the terminal switching part 2 is connected to the external power connection part 1, and the other side of the terminal switching part 2 is connected to the internal power connection part 3.

[0031] The external electrical connection part 1 and the internal electrical connection part 3 are perpendicular to the terminal switching part 2, and the axes of the external electrical connection part 1 and the internal electrical connection part 3 are not collinear.

[0032] In this embodiment, the external electrical connection part 1 is used to connect with an external device to be plugged in, while the internal electrical connection part 3 is used to connect with the solder pads on the circuit board inside the sensor. This achieves the purpose of connecting the sensor with an external device through the spring terminal, making it convenient for the external device to obtain the data sensed or collected by the sensor.

[0033] like Figure 4 As shown, three spring terminals are typically used in sensor applications. The polarity of these three spring terminals is usually determined based on the sensor type and wiring standard. Generally, in a three-wire sensor, the spring terminals may represent the positive terminal VCC, the negative terminal GND, and the signal output terminal OUT, respectively. By employing the spring terminal structure provided in this embodiment, the outer diameter of the virtual circle 4 formed by the ends of the three internal electrical connection parts 3 can be made unequal to the outer diameter of the virtual circle 5 formed by the ends of the three external electrical connection parts 1. Specifically:

[0034] Let the outer diameter of the inner electric virtual circle be R1 and the outer diameter of the outer electric virtual circle be R2, then R1≠R2.

[0035] To minimize changes to the sensor, the position of the internal electrical connection, which connects to the pads on the sensor's internal circuit board, is usually fixed. However, to accommodate the varying spacing of the internal electrical connection terminals in the sockets of external devices, the length of the commutation section can be adjusted to change the outer diameter of the virtual electrical circle. This minimizes changes to the sensor body and allows for adaptation to different application scenarios.

[0036] The external electrical connection part 1, the terminal switching part 2, and the internal electrical connection part 3 are all made of the same steel wire, that is, the external electrical connection part 1, the terminal switching part 2, and the internal electrical connection part 3 are all made of steel wire of 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.

[0037] The external electrical connection part 1 and the internal electrical connection part 3 have the same specifications.

[0038] like Figure 2As shown, as an optimization of this solution, the external power connection part 1 includes an external power plug-in part 101 and an external power elastic support part 102 that are connected to each other, and the external power elastic support part 102 is connected to one side of the terminal switching part 2.

[0039] The internal electrical connection part 3 includes an internal electrical plug-in part 301 and an internal electrical elastic support part 302 that are connected to each other. The internal electrical elastic support part 302 is connected to the other side of the terminal switching part 2.

[0040] In this embodiment, the external electrical plug-in part 101 is mainly used to plug into the socket of an external device to achieve electrical connection by contacting the electrical connectors inside the socket, such as springs; the external electrical elastic support part 102 is used to provide flexible contact during the plug-in process, so as not to cause hard damage to the springs inside the external socket.

[0041] The internal electrical connector 301 is mainly used for electrical connection with the solder pads on the circuit board inside the sensor, and the internal electrical elastic support 302 is used to provide flexible contact during the connection process, so as not to cause hard damage to the circuit board.

[0042] The pitch of the external electrical connector 101 and the internal electrical connector 301 is 0, that is, the external electrical connector 101 and the internal electrical connector 301 are not elastic, thereby ensuring the stability of the contact during electrical connection.

[0043] The pitch of the external electric elastic support 102 and the internal electric elastic support 302 is greater than 0, that is, the external electric elastic support 102 and the internal electric elastic support 302 are elastic, thereby providing elastic support for the contact when the external electric plug 101 and the internal electric plug 301 are electrically connected, and avoiding hard damage.

[0044] The outer diameter of the external electrical connector 101 is smaller than the outer diameter of the external electrical elastic support 102, and the outer diameter of the internal electrical connector 301 is smaller than the outer diameter of the internal electrical elastic support 302.

[0045] The length of the external power connector 101 is less than the length of the external power elastic support 102, and the length of the internal power connector 301 is less than the length of the internal power elastic support 302.

[0046] like Figure 2 As shown, as a further optimization of this solution, an external power limiting buffer 103 is also provided between the external power connector 101 and the external power elastic support 102. The external power limiting buffer 103 is in the shape of a helical spring, and its outer diameter gradually decreases from the external power elastic support 102 to the external power connector 101. The external power limiting buffer 103 facilitates better connection of the spring terminal to the spring limiting support during sensor assembly.

[0047] An internal electrical limiting buffer 303 is also provided between the internal electrical plug-in part 301 and the internal electrical elastic support part 302. The internal electrical limiting buffer 303 is in the shape of a helical spring, and its outer diameter gradually decreases from the internal electrical elastic support part 302 to the internal electrical plug-in part 301. By providing the internal electrical limiting buffer 303, it is convenient that the spring terminal does not need to be aligned internally or externally during assembly. That is, since the external electrical connection part 1 and the internal electrical connection part 3 have the same specifications, it is also convenient to install in both directions, thereby improving the assembly efficiency of the sensor. Secondly, it can also be better connected by the spring limiting support.

[0048] It should be noted that, in this embodiment, the pitch of the external electric limiting buffer 103 is smaller than the pitch of the external electric elastic support 102, and the pitch of the internal electric limiting buffer 303 is smaller than the pitch of the internal electric elastic support 302.

[0049] The above description is only for illustrating the embodiments of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spring terminal structure for a sensor, characterized by The utility model relates to an electric terminal, including mutually connected outer electric connection part (1), terminal reversing part (2) and inner electric connection part (3), one side of terminal reversing part (2) is connected with outer electric connection part (1), the other side of terminal reversing part (2) is connected with inner electric connection part (3); The outer electric connection part (1) and the inner electric connection part (3) are perpendicular to the terminal reversing part (2) respectively, and the axis of the outer electric connection part (1) and the inner electric connection part (3) is not collinear.

2. A spring terminal structure for a sensor according to claim 1, characterized in that The outer electric connection part (1), the terminal reversing part (2) and the inner electric connection part (3) are made of the same steel wire.

3. A spring terminal structure for a sensor according to claim 2, characterized in that The outer electric connection part (1) and the inner electric connection part (3) have the same specification.

4. A spring terminal structure for a sensor according to claim 1 or 2, characterized in that, The outer electric connection part (1) includes outer electric plug-in part (101) and outer electric elastic support part (102) connected with each other, and the outer electric elastic support part (102) is connected with one side of the terminal reversing part (2). The inner electric connection part (3) includes inner electric plug-in part (301) and inner electric elastic support part (302) connected with each other, and the inner electric elastic support part (302) is connected with the other side of the terminal reversing part (2).

5. A spring terminal structure for a sensor according to claim 4, wherein The pitch of the outer electric plug-in part (101) and the inner electric plug-in part (301) is 0. The pitch of the outer electric elastic support part (102) and the inner electric elastic support part (302) is greater than 0.

6. A spring terminal structure for a sensor according to claim 4 or 5, characterized in that The outer diameter of the outer electric plug-in part (101) is smaller than that of the outer electric elastic support part (102), and the outer diameter of the inner electric plug-in part (301) is smaller than that of the inner electric elastic support part (302).

7. A spring terminal structure for a sensor according to claim 4 or 5, characterized in that The length of the outer electric plug-in part (101) is smaller than that of the outer electric elastic support part (102), and the length of the inner electric plug-in part (301) is smaller than that of the inner electric elastic support part (302).

8. A spring terminal structure for a sensor according to claim 6, characterized by An outer electric limiting buffer part (103) is arranged between the outer electric plug-in part (101) and the outer electric elastic support part (102), the outer electric limiting buffer part (103) is in the shape of a spiral spring, and the outer diameter gradually decreases from the outer electric elastic support part (102) to the outer electric plug-in part (101).

9. A spring terminal structure for a sensor according to claim 8, characterized in that An inner electric limiting buffer part (303) is arranged between the inner electric plug-in part (301) and the inner electric elastic support part (302), the inner electric limiting buffer part (303) is in the shape of a spiral spring, and the outer diameter gradually decreases from the inner electric elastic support part (302) to the inner electric plug-in part (301).

10. A spring terminal structure for a sensor according to claim 9, characterized by The pitch of the outer electric limiting buffer part (103) is smaller than that of the outer electric elastic support part (102), and the pitch of the inner electric limiting buffer part (303) is smaller than that of the inner electric elastic support part (302).

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