Gear identification structure based on moving magnet

Abstract

The utility model relates to an automobile gear state monitoring structure, in particular to a gear identification structure based on a moving magnet, which is characterized in that a handle shifting block with a hole extends out of the tail end of a handle, a Hall sensor is arranged on a PCB (printed circuit board) in a handle base, a guide rail bracket is fixed at the top of the handle base, and a magnet bracket is arranged in the guide rail bracket in a sliding manner; a connecting column is fixed on the magnet support, the connecting column is inserted into a hole in the handle shifting block, a magnet groove is further formed in the magnet support, and a magnet is fixed in the magnet groove. According to the utility model, the magnet can be conveniently moved through the magnet bracket and the guide rail bracket of the magnet, so that the current shifting displacement of the handle is confirmed, the gear state of the handle is judged, and the device is good in structure and strong in universality; and a double-path redundancy design is also adopted, so that the security level is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile gear state monitoring structure, concretely is a kind of gear recognition structure based on moving magnet. BACKGROUND

[0002] The combination switch on the car is for the convenience of the driver, and the handle switch is installed under the steering wheel. At present, the gear operating rod is also integrated into the combination switch, which is convenient for the driver to operate. Therefore, it is very important to accurately identify the gear state of the combination switch. The gear state of the existing combination switch is mostly confirmed by mechanical structure. However, the existing gear state monitoring structure is simple in structure, poor in gear state monitoring effect, and has no redundancy strategy, low in safety level. SUMMARY

[0003] The utility model discloses a kind of magnet and Hall sensor cooperation monitoring gear state structure to solve the problem of the existing gear state monitoring structure monitoring effect and low safety level, specifically a kind of gear recognition structure based on moving magnet, magnet fixed support and magnet moving guide rail are set to facilitate magnet movement, to confirm the displacement of current handle knob, to determine the gear state of combination switch.

[0004] The utility model discloses a kind of gear recognition structure based on moving magnet, the end of handle extends the handle knob with hole, Hall sensor is provided on the PCB board in the handle base, the top of handle base is fixed with guide rail support, magnet support is slidably arranged in guide rail support, connecting column is fixed on magnet support, connecting column is inserted into the hole in handle knob, magnet support is also provided with magnet slot, and magnet is fixed in magnet slot.

[0005] When operating handle, handle knob is moved together, handle knob moves and drives magnet support to move in guide rail support;When magnet support moves forward or backward in guide rail support, the position of magnet in magnet support and Hall sensor changes, and the signal output by Hall sensor changes;Magnet support moves to different positions, and the signal output by Hall sensor is different, so as to determine different gear states;The signal output by Hall sensor is transmitted to MCU on PCB board or to the MCU outside handle base, and the gear state is identified by MCU.

[0006] The aforementioned gear position recognition structure based on a movable magnet includes a guide rail bracket comprising a frame, a magnet bracket slot in the middle of the frame, guide rails on the left and right sides of the magnet bracket slot, a connecting post moving channel above the magnet bracket slot on the frame, and connecting ears around the frame for fixing to the handle base. The magnet bracket includes a frame, guide rails that mate with the guide rails on its left and right sides, and a connecting post in the middle of the frame. The magnet bracket is inserted into the magnet bracket slot in the guide rail bracket, the guide rails on the magnet bracket mate with the guide rails on the guide rail bracket, and the connecting post on the magnet bracket extends from the connecting post moving channel on the guide rail bracket; the magnet bracket can move within the guide rail bracket.

[0007] The aforementioned gear position recognition structure based on a movable magnet has magnet slots on the left and right sides of the connecting column on the frame. Two magnets can be fixed on the magnet bracket, and two Hall sensors are set on the corresponding PCB board. The signals output by the Hall sensors are transmitted to the MCU, which increases redundancy and improves the safety level.

[0008] In the aforementioned gear position recognition structure based on a movable magnet, the guide rail bracket is located directly above the Hall sensor.

[0009] This utility model's gear position recognition structure can meet the gear position recognition requirements of combination switches for different vehicle models. To better detect the gear position, the magnet can be easily moved via the magnet bracket and guide rail bracket, thereby confirming the displacement of the current handle and determining the gear position of the handle. This utility model has a good structure and strong versatility; it also features a dual-circuit redundancy design, resulting in a high level of safety. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the guide rail bracket.

[0012] Figure 3 This is a schematic diagram of the magnet support structure.

[0013] Figure 4 This is a schematic diagram of the assembly of the magnet bracket and the guide rail bracket.

[0014] In the diagram: 1-Handle dial, 2-Connecting post, 3-Guide rail bracket, 4-Handle, 5-Handle base, 6-Guide rail, 7-Connecting ear, 8-Magnet bracket, 9-Guide rail strip, 10-Magnet slot. Detailed Implementation

[0015] A gear recognition structure based on a moving magnet, a magnet fixing support and a guide rail for facilitating the movement of the magnet are arranged, the relative position relationship between the magnet and the Hall sensor is fixed, so as to confirm the displacement of the current handle knob, and the gear state of the handle is determined.

[0016] As shown in Figure 1 , a gear recognition structure based on a moving magnet, including a handle 4 and a handle base 5, the handle 4 is hinged to the handle base 5 through a connecting shaft, the end of the handle 4 extends out of the handle knob 1 with a hole, when operating the handle 4, the handle knob 1 will move together, the handle base 5 is internally provided with a PCB board, the PCB board is provided with a Hall sensor, the top of the handle base 5 is fixed with a guide rail support 3, the guide rail support 3 is internally provided with a magnet support 8, the middle position of the magnet support 8 is fixed with a connecting column 2, the connecting column is inserted into the hole on the handle knob 1, when the handle knob 1 moves, the magnet support moves in the guide rail support 3.

[0017] As shown in Figure 2 , the guide rail support 3 includes a frame body, the middle part of the frame body is provided with a magnet support groove, the left and right sides of the magnet support groove are guide rails 6, the frame body is provided with a connecting column moving channel above the magnet support groove, and the frame body is provided with connecting ears 7 fixed with the handle base 5 around.

[0018] As shown in Figure 3 , the magnet support 8 includes a frame body, the left and right sides of the frame body are respectively provided with guide rail strips 9 matched with the guide rails 6, the middle part of the frame body is provided with the connecting column 2, the frame body is respectively provided with magnet grooves 10 on the left and right sides of the connecting column 2, and magnets are fixed in the magnet grooves 10.

[0019] As shown in 4, the magnet support 8 is inserted into the magnet support groove in the guide rail support 3, the guide rail strips 9 on the magnet support 8 are matched with the guide rails 6 on the guide rail support 3, and the connecting column 2 on the magnet support 8 extends out of the connecting column moving channel on the guide rail support 3.

[0020] When operating the handle 4, the handle knob 1 will move together, and when the handle knob 1 moves, the magnet support 8 moves in the guide rail support 3; when the magnet support 8 moves forward or backward in the guide rail support 3, the position of the magnet in the magnet support 8 changes, and the signal output by the Hall sensor changes; when the magnet support 8 moves to different positions, the signals output by the Hall sensor are different, thereby determining different gear states; the signals output by the Hall sensor are transmitted to the MCU on the PCB board or to the MCU outside the handle base 5, and the gear state is recognized by the MCU; two magnets are fixed on the magnet support 8, and two Hall sensors are arranged on the corresponding PCB board, the signals output by the Hall sensors are transmitted to the MCU, redundancy is increased, and the safety level is improved.

Claims

1. A shift position recognition structure based on a mobile magnet, characterized by: The end of the handle (4) extends out of the handle knob (1) with a hole, the PCB board inside the handle base (5) is provided with a Hall sensor, the top of the handle base (5) is fixedly provided with a guide rail support (3), the guide rail support (3) is slidably provided with a magnet support (8) inside, the magnet support (8) is fixedly provided with a connecting column (2), the connecting column (2) is inserted into the hole on the handle knob (1), and the magnet support (8) is further provided with a magnet slot (10), and the magnet slot (10) is fixedly provided with a magnet.

2. The shift position recognition structure based on a mobile magnet according to claim 1, characterized in that: The guide rail support (3) comprises a frame body, a magnet support slot is arranged in the middle of the frame body, guide rails (6) are arranged on the left and right sides of the magnet support slot, a connecting column moving channel is arranged above the magnet support slot on the frame body, and connecting ears (7) fixedly connected with the handle base (5) are arranged around the frame body; the magnet support (8) comprises a frame body, guide rail strips (9) matched with the guide rails (6) are arranged on the left and right sides of the frame body, and the connecting column (2) is arranged in the middle of the frame body.

3. A mobile magnet based gear recognition structure as claimed in claim 2, wherein: The frame body is provided with the magnet slot (10) on the left and right sides of the connecting column (2).

4. The mobile magnet-based gear recognition structure according to claim 1 or 2, characterized in that: The guide rail support (3) is directly above the Hall sensor.

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