Three-in-one sensor

Abstract

The utility model discloses a three-in-one sensor which comprises a sensor shell, and a position monitoring assembly is fixedly installed in the sensor shell through an installation interface. The position monitoring assembly comprises a rotor embedded and fixed in the mounting interface, an electric brush is fixed at the top of the rotor, a resistor substrate is arranged at the top of the mounting interface, and the electric brush is elastically attached to the resistor substrate; an upper cover is fixed to a top opening of the mounting interface, and an elastic compensation mechanism is mounted in the upper cover and connected with the resistor substrate. According to the utility model, when the electric brush has elasticity loss and cannot be stably attached to the resistor substrate, the resistor substrate can be moved down and adjusted through the elasticity compensation mechanism, so that the electric brush and the resistor substrate are stably connected, the elastic loss compensation of the electric brush is realized, and the service life of the sensor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of position sensors, in particular to a three-in-one sensor. Background Art

[0002] The throttle position sensor is a sensor installed on the throttle shaft to detect the throttle opening. It has two types: one is an analog throttle position sensor and the other is a switch throttle position sensor. The analog throttle position sensor throttle position sensor is a three-wire sensor, one of which is a 5V voltage from the computer's sensor power supply to power the sensor resistor material, and the other is a grounding wire connected to the other end of the resistor material. The third wire is connected to the movable contact of the sensor to provide a signal output to the computer. The voltage at each point on the resistor material is detected by the movable contact and is proportional to the throttle angle.

[0003] For example, the patent with authorization announcement number CN201945321U and name "Throttle Position Sensor" has a specific structure including a plastic shell, a cover, a reset spring, a brush body, a brush, a PCB substrate, a column, a first hanging foot, and a second hanging foot. The cover and the plastic shell are sealed by gluing, the brush body is inserted into the hole of the plastic shell and fits with the gap of the plastic shell, the brush is interference connected with the column, one torsion arm of the reset spring is hung on the first hanging foot, and the other torsion arm of the reset spring is hung on the second hanging foot. The PCB substrate is installed on one side of the plastic shell and placed above the brush body.

[0004] Similar to the above application, the current throttle position sensor is driven by a throttle shaft to rotate a rotor, a brush is arranged on the rotor, the brush is in contact with a resistor substrate, the resistor substrate is electrically connected to a circuit board, and the circuit board is connected with input and output voltages and a ground wire by a connector. As the throttle shaft rotates, the rotor rotates, and then the brush moves on the resistor substrate, outputting different voltage values ​​to indicate different positions of the throttle shaft. Since the brush is elastically abutted against the resistor substrate, the brush elasticity loss will occur after long-term use, affecting the stability of the contact between the brush and the resistor substrate, thereby causing the sensor to malfunction. Utility Model Content

[0005] The utility model aims to overcome the problem in the prior art that the brush is elastically abutted against the resistor substrate, which may cause the brush to lose its elasticity during long-term use, affecting the stability of the contact between the brush and the resistor substrate, thereby causing sensor failure. A three-in-one sensor is provided, which adjusts the resistor substrate downward through an elastic compensation mechanism, so that the brush and the resistor substrate maintain a stable connection, thereby achieving compensation for the elastic loss of the brush.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model discloses a three-in-one sensor, comprising a sensor housing, in which a position monitoring component is fixedly installed through a mounting interface; a mounting ear is integrally formed on the sensor housing, and a mounting hole is provided on the mounting ear;

[0008] The position monitoring component includes a rotor embedded and fixed in a mounting interface, a brush fixed on the top of the rotor, a resistor substrate provided on the top of the mounting interface, and the brush elastically fits the resistor substrate; when the position monitoring component monitors the throttle position, the throttle shaft is connected to the rotor, and when the throttle shaft rotates, the rotor is synchronously driven to rotate, and the rotor drives the brush mounted on it to rotate, and the brush moves on the resistor substrate to output different voltage values ​​to be transmitted to the circuit board, and finally different voltage values ​​are transmitted through the connector on the circuit board to indicate the different positions of the throttle shaft.

[0009] The top opening of the mounting interface is fixed with an upper cover, and an elastic compensation mechanism is installed in the upper cover. The elastic compensation mechanism is connected to the resistor substrate. When the brush loses elasticity, the elastic compensation mechanism is used to drive the resistor substrate to adjust to compensate for the elastic loss of the brush. The contact between the brush and the resistor substrate is elastic contact. When used for a long time, the brush will lose elasticity, so that it cannot ensure a stable fit with the resistor substrate, which leads to sensor failure. The present application connects the resistor substrate by setting an elastic compensation mechanism on the upper cover. When the brush loses elasticity and cannot be stably fitted with the resistor substrate, the resistor substrate can be adjusted downward by the elastic compensation mechanism, so that the brush and the resistor substrate maintain a stable connection, and the brush 42 is compensated for elastic loss, thereby extending the practical life of the sensor.

[0010] Preferably, a circuit board is installed in the sensor housing, the resistor substrate is connected to the circuit board, and a connector is also connected to one side of the circuit board.

[0011] Preferably, the elastic compensation mechanism includes an upper adjusting column rotatably connected to the upper cover, the upper adjusting column is coaxially fixed with a connecting shaft, and a lower adjusting column is rotatably sleeved on the connecting shaft, the bottom end of the lower adjusting column is connected to the resistor substrate through a connecting seat, and the end faces of the bottom end of the upper adjusting column and the top end of the lower adjusting column are both wedge-shaped surfaces.

[0012] Preferably, a support spring is connected between the connecting shaft and the lower adjusting column, and the elastic force of the support spring is used to drive the lower adjusting column to move upward, and an adjusting button is connected to the top end of the upper adjusting column.

[0013] Preferably, the sensor housing is further provided with a detection hole, and a pressure chip is mounted on the detection hole.

[0014] Preferably, an O-ring is provided between the detection hole and the pressure chip, and the pressure chip is connected to the circuit board. By opening a detection hole on the sensor housing and installing the pressure chip, the pressure chip can measure pressure information through the detection hole and transmit it to the circuit board, and finally transmit the signal through the connector on the circuit board, so that the sensor also has the function of synchronously measuring pressure information, which is more convenient to use.

[0015] Compared with the prior art, the utility model has the following beneficial effects: by arranging an elastic compensation mechanism on the upper cover to connect with the resistor substrate, when the brush loses its elasticity and cannot be stably fitted with the resistor substrate, the resistor substrate can be adjusted downward by the elastic compensation mechanism, so that the brush and the resistor substrate maintain a stable connection, thereby achieving elastic loss compensation for the brush and extending the practical life of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a three-in-one sensor proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of a three-in-one sensor split structure proposed by the utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the sensor housing in the utility model;

[0019] Figure 4 It is a schematic diagram of the overall structure of the elastic compensation mechanism in the utility model.

[0020] Figure numerals: 1. sensor housing; 11. mounting ear; 12. detection hole; 13. O-ring; 2. mounting interface; 21. upper cover; 3. circuit board; 31. pressure chip; 4. position monitoring component; 41. rotor; 42. brush; 43. resistor substrate; 5. elastic compensation mechanism; 51. upper adjustment column; 511. adjustment button; 52. lower adjustment column; 521. connecting seat; 53. connecting shaft; 531. support spring. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4, further illustrating a specific implementation of a three-in-one sensor of the utility model, overcoming the problem that the brush in the prior art is elastically abutting against the resistor substrate, the brush will lose its elasticity after long-term use, affecting the stability of the contact between the brush and the resistor substrate, thereby causing sensor failure, and providing a three-in-one sensor, which adjusts the resistor substrate downward through an elastic compensation mechanism, so that the brush and the resistor substrate maintain a stable connection, and realizes compensation for the elastic loss of the brush. The utility model of a three-in-one sensor is not limited to the description of the following embodiments.

[0022] Embodiment 1:

[0023] This embodiment provides a three-in-one sensor, including a sensor housing 1, in which a position monitoring component 4 is fixedly installed through a mounting interface 2; a mounting ear 11 is also integrally formed on the sensor housing 1, and a mounting hole is opened on the mounting ear 11;

[0024] The position monitoring component 4 includes a rotor 41 embedded and fixed in the mounting interface 2, a brush 42 is fixed on the top of the rotor 41, a resistor substrate 43 is arranged on the top of the mounting interface 2, the brush 42 is elastically fitted with the resistor substrate 43, a circuit board 3 is installed in the sensor housing 1, the resistor substrate 43 is connected to the circuit board 3, and a connector is also connected to one side of the circuit board 3. When the position monitoring component 4 monitors the throttle position, the throttle shaft is connected to the rotor 41, and when the throttle shaft rotates, the rotor 41 is synchronously driven to rotate, and the rotor 41 drives the brush 42 mounted thereon to rotate, and the brush 42 moves on the resistor substrate 43 to output different voltage values ​​to be transmitted to the circuit board 3, and finally transmits different voltage values ​​through the connector on the circuit board 3 to indicate the different positions of the throttle shaft.

[0025] An upper cover 21 is fixed to the top opening of the mounting interface 2, and an elastic compensation mechanism 5 is installed in the upper cover 21. The elastic compensation mechanism 5 is connected to the resistor substrate 43. When the brush 42 loses its elasticity, the elastic compensation mechanism 5 is used to drive the resistor substrate 43 to adjust so as to compensate for the elasticity loss of the brush 42.

[0026] It should be noted that the brush 42 and the resistor substrate 43 are in contact with each other in an elastic manner. When used for a long time, the brush 42 will lose its elasticity, and thus cannot ensure a stable fit and connection with the resistor substrate 43, thereby causing the sensor to malfunction. The present application connects the brush 42 to the resistor substrate 43 by providing an elastic compensation mechanism 5 on the upper cover 21. When the brush 42 loses its elasticity and cannot be stably fitted with the resistor substrate 43, the resistor substrate 43 can be adjusted downward by the elastic compensation mechanism 5, so that the brush 42 and the resistor substrate 43 maintain a stable connection, thereby compensating for the elastic loss of the brush 42 and extending the practical life of the sensor.

[0027] The elastic compensation mechanism 5 includes an upper adjustment column 51 rotatably connected to the upper cover 21, a connecting shaft 53 is coaxially fixed to the upper adjustment column 51, and a lower adjustment column 52 is rotatably sleeved on the connecting shaft 53, the bottom end of the lower adjustment column 52 is connected to the resistor substrate 43 through a connecting seat 521, and the end faces of the bottom end of the upper adjustment column 51 and the top end of the lower adjustment column 52 are both wedge-shaped surfaces. A support spring 531 is connected between the connecting shaft 53 and the lower adjustment column 52, and the elastic force of the support spring 531 is used to drive the lower adjustment column 52 to move upward, and an adjustment button 511 is connected to the top end of the upper adjustment column 51.

[0028] The elastic compensation mechanism 5 adjusts the resistor substrate 43 downward so that the brush 42 and the resistor substrate 43 maintain a stable connection. Specifically, initially, the wedge surface at the bottom end of the upper adjustment column 51 and the top wedge surface of the lower adjustment column 52 are in contact with each other and supported by the support spring 531. When the brush 42 loses its elasticity and cannot be stably fitted with the resistor substrate 43, the staff drives the upper adjustment column 51 to rotate through the adjustment button 511. At this time, the wedge surface at the bottom end of the upper adjustment column 51 and the top wedge surface of the lower adjustment column 52 are misaligned with each other, thereby driving the lower adjustment column 52 to move downward. The lower adjustment column 52 drives the resistor substrate 43 downward through the connecting seat 521, so that the resistor substrate 43 and the brush 42 maintain a stable fit and contact, thereby finally realizing elastic loss compensation for the brush 42.

[0029] Embodiment 2:

[0030] The sensor housing 1 is also provided with a detection hole 12, on which a pressure chip 31 is installed, and an O-ring 13 is provided between the detection hole 12 and the pressure chip 31, and the pressure chip 31 is connected to the circuit board 3. Furthermore, by providing the detection hole 12 on the sensor housing 1 and installing the pressure chip 31, the pressure chip 31 can measure the pressure information through the detection hole 12 and transmit it to the circuit board 3, and finally transmit the signal through the connector on the circuit board 3, so that the sensor also has the function of synchronously measuring the pressure information, and is more convenient to use.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A three-in-one sensor, characterized in that: It comprises a sensor housing (1), in which a position monitoring component (4) is fixedly mounted via a mounting interface (2); The position monitoring component (4) comprises a rotor (41) embedded and fixed in the mounting interface (2), a brush (42) being fixed on the top of the rotor (41), a resistor substrate (43) being arranged on the top of the mounting interface (2), and the brush (42) being elastically fitted to the resistor substrate (43); An upper cover (21) is fixed to the top opening of the mounting interface (2), and an elastic compensation mechanism (5) is installed in the upper cover (21); the elastic compensation mechanism (5) is connected to the resistor substrate (43); when the brush (42) suffers from elasticity loss, the elastic compensation mechanism (5) is used to drive the resistor substrate (43) to adjust so as to compensate for the elasticity loss of the brush (42).

2. A three-in-one sensor according to claim 1, characterized in that: A circuit board (3) is installed in the sensor housing (1), the resistor substrate (43) is connected to the circuit board (3), and a connector is also connected to one side of the circuit board (3).

3. The three-in-one sensor according to claim 1, characterized in that: The elastic compensation mechanism (5) comprises an upper adjustment column (51) rotatably connected to the upper cover (21); a connecting shaft (53) is coaxially fixed to the upper adjustment column (51); a lower adjustment column (52) is rotatably sleeved on the connecting shaft (53); the bottom end of the lower adjustment column (52) is connected to the resistor substrate (43) via a connecting seat (521); and the end faces of the bottom end of the upper adjustment column (51) and the top end of the lower adjustment column (52) are both wedge-shaped faces.

4. A three-in-one sensor according to claim 3, characterized in that: A support spring (531) is connected between the connecting shaft (53) and the lower adjustment column (52), and the elastic force of the support spring (531) is used to drive the lower adjustment column (52) to move upward, and the top end of the upper adjustment column (51) is connected to an adjustment button (511).

5. The three-in-one sensor according to claim 2, characterized in that: The sensor housing (1) is also provided with a detection hole (12), and a pressure chip (31) is installed on the detection hole (12).

6. A three-in-one sensor according to claim 5, characterized in that: An O-type sealing ring (13) is provided between the detection hole (12) and the pressure chip (31), and the pressure chip (31) is connected to the circuit board (3).

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