CN211820709U

CN211820709U - Angle sensor

Info

Publication number: CN211820709U
Application number: CN202020350544.1U
Authority: CN
Inventors: 凡剑兵; 李业生; 刘文辉
Original assignee: Alifu Electronics Shenzhen Co ltd
Current assignee: Alifu Electronics Shenzhen Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-10-30
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to the technical field of sensors, in particular to an angle sensor, which comprises a shell, wherein one side of the shell is provided with a first mounting groove, and the bottom wall of the first mounting groove is provided with a second mounting groove communicated with the first mounting groove; the Hall integrated circuit board comprises a circuit board and a Hall chip arranged on the circuit board, and the circuit board is fixedly connected with the shell and is arranged in the second mounting groove; the rotating body is in rotating fit with the shell and is arranged in the first mounting groove; the magnetic part is fixedly arranged on the rotating body and is opposite to the position of the Hall chip on the Hall integrated circuit board, and the magnetic part can be driven to rotate by a transmission shaft of the gearbox. When the gear lever rotates to different gears, the transmission shaft drives the rotating body to rotate at different angles with the magnetic part, the magnetic field changes, the signals output by the Hall chip are different, the gear where the gear lever is located can be identified, and the magnetic part and the Hall chip are arranged in a non-contact manner, so that the magnetic part and the Hall chip cannot be abraded, and the detection result can be ensured to be accurate and stable.

Description

Angle sensor

Technical Field

The utility model relates to a sensor technical field especially relates to an angle sensor.

Background

The gear switch used by the existing automatic gearbox is a device which transmits a gear signal selected by a driver to an electronic control system and mainly comprises a shell, a rotor and pins, wherein a plurality of groups of stationary contacts are arranged on the shell, a group of elastic movable contacts are arranged on the rotor, the movable contacts can be respectively contacted and conducted with the groups of stationary contacts along with the rotation of the rotor, and the pin transmits the gear signal to the control system. After long-time use, easily produce wearing and tearing between movable contact and the stationary contact to lead to the contact between movable contact and the stationary contact to switch on badly, keep off the unable normal transmission of position signal, life is low. Meanwhile, due to the vibration of the automobile and the engine, the movable contact and the fixed contact may be separated instantaneously, so that abnormal signal interruption is caused, and the stability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides an angle sensor to adopt the fender position switch control fender position of contact among the solution correlation technique, lead to contact wearing and tearing easily, and then lead to the problem of inefficacy.

The utility model provides an angle sensor, this angle sensor includes:

the device comprises a shell, a first mounting groove and a second mounting groove, wherein one side of the shell is provided with the first mounting groove, and the bottom wall of the first mounting groove is provided with the second mounting groove communicated with the first mounting groove;

the Hall integrated circuit board comprises a circuit board and a Hall chip arranged on the circuit board, and the circuit board is fixedly connected with the shell and is arranged in the second mounting groove;

the rotating body is in rotating fit with the shell and is arranged in the first mounting groove;

the magnetic part is fixedly arranged on the rotating body and opposite to the Hall chip on the Hall integrated circuit board, and the magnetic part can be driven to rotate by a transmission shaft of the gearbox.

As angle sensor's preferred technical scheme, the rotor includes discoid body and connector subassembly, the body has first terminal surface and second terminal surface, connector subassembly set up in first terminal surface just be used for with the transmission shaft of gearbox is connected, magnetic part set up in the second terminal surface.

As angle sensor's preferred technical scheme, the connector subassembly includes the clamp and follows a plurality of arc pieces that the circumferencial direction interval set up, and is a plurality of the slot is enclosed into to the arc piece, the slot be used for with the transmission shaft is pegged graft, the clamp can with each the arc piece compress tightly in the transmission shaft.

As an optimal technical scheme of the angle sensor, the body is provided with a limiting hole, the shell is provided with a through hole, the angle sensor further comprises a bolt, and the bolt can be sequentially spliced with the through hole and the limiting hole along the axis direction of the rotation of the body.

As a preferred technical solution of the angle sensor, a plurality of hooks are disposed on a wall of the first mounting groove, and the hooks can abut against the first end surface of the body to limit the body from being separated from the first mounting groove.

As angle sensor's preferred technical scheme, the rotor is made by the plastic material, the magnetic part is made by the metal material, the rotor with the magnetic part is through injection molding technology integrated into one piece.

As an optimal technical scheme of the angle sensor, a plurality of mounting lugs are arranged on the shell, mounting holes are formed in the mounting lugs, and mounting sleeves made of metal materials are fixed in the mounting holes.

As an optimal technical scheme of the angle sensor, the hall integrated circuit board further comprises a plurality of terminals connected with the circuit board, the terminals are made of metal, the shell is made of plastic, and the terminals and the shell are integrally formed through an injection molding process.

As a preferred technical scheme of the angle sensor, an insertion groove is formed in the housing, one end of the terminal is connected with the circuit board, and the other end of the terminal is located in the insertion groove and used for being inserted into a butting connector.

As a preferable technical solution of the angle sensor, the angle sensor further includes a cover plate that closes the notch of the second mounting groove.

The utility model has the advantages that:

the utility model provides an angle sensor, which comprises a shell, wherein one side of the shell is provided with a first mounting groove, and the bottom wall of the first mounting groove is provided with a second mounting groove communicated with the first mounting groove; the Hall integrated circuit board comprises a circuit board and a Hall chip arranged on the circuit board, and the circuit board is fixedly connected with the shell and is arranged in the second mounting groove; the rotating body is in rotating fit with the shell and is arranged in the first mounting groove; the magnetic part is fixedly arranged on the rotating body and is opposite to the position of the Hall chip on the Hall integrated circuit board, and the magnetic part can be driven to rotate by a transmission shaft of the gearbox. When the gear lever rotates to different gears, the transmission shaft drives the rotating body to rotate at different angles with the magnetic part, the magnetic field changes, the signals output by the Hall chip are different, the gear where the gear lever is located can be identified, and the magnetic part and the Hall chip are arranged in a non-contact manner, so that the magnetic part and the Hall chip cannot be abraded, and the detection result can be ensured to be accurate and stable.

Drawings

Fig. 1 is a schematic structural diagram of an angle sensor according to an embodiment of the present invention;

fig. 2 is an exploded view of an angle sensor according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an angle sensor according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a hidden casing of an angle sensor in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the housing in the embodiment of the present invention.

In the figure:

1. a housing; 11. a first mounting groove; 12. a second mounting groove; 13. a hook; 14. a through hole; 15. mounting lugs; 151. mounting holes; 16. inserting grooves;

2. a Hall integrated circuit board; 21. a circuit board; 22. a Hall chip; 23. a terminal;

3. a rotating body; 31. a body; 311. a limiting hole; 32. a connector assembly; 321. an arc-shaped sheet; 322. clamping a hoop;

4. a magnetic member;

5. a bolt;

6. installing a sleeve;

7. and (7) a cover plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, the present embodiment provides an angle sensor including a housing 1, a hall ic 2, a rotor 3, and a magnetic member 4.

Wherein, one side of casing 1 is equipped with first mounting groove 11, is equipped with the second mounting groove 12 with first mounting groove 11 intercommunication on the diapire of first mounting groove 11. Specifically, the first mounting groove 11 and the second mounting groove 12 are stepped, the first mounting groove 11 is a circular groove, the second mounting groove 12 is a square groove, and the diameter of the first mounting groove 11 is greater than the width and length of the second mounting groove 12.

The hall ic 2 includes a circuit board 21 and a hall chip 22 disposed on the circuit board 21, and the circuit board 21 is fixedly connected to the housing 1 and disposed in the second mounting groove 12. In this embodiment, the casing 1 is made of a plastic material, the bottom wall of the second mounting groove 12 is convexly provided with a plurality of positioning columns, the circuit board 21 is sleeved on the plurality of positioning columns, the positioning columns are hot-pressed by a hot riveting technology to form a rivet structure, so that the circuit board 21 is fixed on the casing 1, and in order to further ensure that the circuit board 21 is stably connected with the casing 1, the side wall of the circuit board 21 is welded with the casing 1 by a soldering tin technology. Preferably, the angle sensor includes a cover plate 7, and the cover plate 7 closes the notch of the second mounting groove 12. Specifically, apron 7 is made by the plastic material, and apron 7 passes through the laser welding technology welding with casing 1 and is in the same place, can guarantee that apron 7 is connected stably with casing 1, can play waterproof dirt-proof effect simultaneously. In this embodiment, the hall ic 2 further includes a plurality of terminals 23 connected to the circuit board 21, the terminals 23 are made of metal, each terminal 23 is integrally formed with the housing 1 through an injection molding process, so as to ensure the position stability of the terminal 23, preferably, the housing 1 is provided with an insertion groove 16, one end of the terminal 23 is connected to the circuit board 21, and the other end is located in the insertion groove 16 and is used for being inserted into the mating connector.

Rotor

3 and 1 normal running fit of casing, and set up in first mounting groove 11, magnetic part 4 is fixed to be set up in rotor 3 and relative with hall integrated circuit board 2 on hall chip 22 position, and magnetic part 4 can be driven by the transmission shaft (not shown in the drawing) of gearbox and rotate. In this embodiment, the rotor 3 can rotate 360 °.

The angle sensor that this embodiment provided, when the transmission shaft that the gear lever drove the gearbox is rotatory when keeping off the position with the switching, will drive rotor 3 relative casing 1 and rotate, and then rotor 3 drives magnetic part 4 and rotates, make hall chip 22's magnetic field change, hall chip 22 senses the magnetic field of change and output signal to the controller, when the gear lever rotates the different fender position of keeping off, transmission shaft pivoted angle is different, the signal of hall chip 22 output is different, can discern keeping off the position that the gear lever was located. Through making magnetic part 4 and hall chip 22 non-contact setting, there is not wearing and tearing problem between the two, guarantees that the testing result is accurate stable, and is favorable to improving angle sensor's life.

In this embodiment, keep off the position and keep off the position including parking fender (P fender), reverse gear (R fender), neutral gear (N fender), go forward fender (D fender) and low-speed fender (L fender), each keeps off the position and corresponds different angles respectively, and it should be noted that in this embodiment, because rotor 3 can 360 rotations, does not do the restriction to each specific angle that keeps off the position correspondence, can set up as required, has wider application scope.

Alternatively, the rotor 3 comprises a connector assembly 32 and a disc-shaped body 31, the body 31 having a first end face and a second end face, the connector assembly 32 being arranged on the first end face and being used for connecting with a transmission shaft of a gearbox, and the magnetic member 4 being arranged on the second end face. In this embodiment, the magnetic member 4 is made of a metal material, and the body 31 of the rotating body 3 and the magnetic member 4 are integrally formed by an injection molding process, so that the magnetic member 4 and the rotating body 3 can be stably connected. Preferably, the connector assembly 32 includes a clamp 322 and a plurality of arc-shaped pieces 321 arranged at intervals along the circumferential direction, the plurality of arc-shaped pieces 321 are enclosed to form a slot, the slot is used for being inserted into the transmission shaft, and the clamp 322 can press each arc-shaped piece 321 against the transmission shaft. Preferably, clip 322 is a C-ring. Further preferably, a plurality of hooks 13 are disposed on a wall of the first mounting groove 11, and the hooks 13 can abut against the first end surface of the body 31 to limit the body 31 from separating from the first mounting groove 11.

Optionally, the body 31 is provided with a limiting hole 311, the housing 1 is provided with a through hole 14, the angle sensor further includes a plug pin 5, and the plug pin 5 can be sequentially inserted into the through hole 14 and the limiting hole 311 along the axis direction of the rotation of the body 31. Through setting up bolt 5, can guarantee in the transportation, rotor 3 can not rotate with magnetic part 4 relatively.

Optionally, the housing 1 is provided with a plurality of mounting lugs 15, each mounting lug 15 is provided with a mounting hole 151, and a mounting sleeve 6 made of a metal material is fixed in each mounting hole 151. In this embodiment, the mounting sleeve 6 is made of a copper material, and the mounting sleeve 6 and the housing 1 may be integrally formed through an injection molding process, so as to ensure that the mounting sleeve 6 and the housing 1 are stably connected.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An angle sensor, comprising

The device comprises a shell (1), a first mounting groove (11) is formed in one side of the shell, and a second mounting groove (12) communicated with the first mounting groove (11) is formed in the bottom wall of the first mounting groove (11);

the Hall integrated circuit board (2) comprises a circuit board (21) and a Hall chip (22) arranged on the circuit board (21), and the circuit board (21) is fixedly connected with the shell (1) and is arranged in the second mounting groove (12);

the rotating body (3) is in rotating fit with the shell (1) and is arranged in the first mounting groove (11);

magnetic part (4), fixed set up in rotor (3) and with hall chip (22) on hall integrated circuit board (2) position is relative, magnetic part (4) can be driven by the transmission shaft of gearbox and rotate.

2. Angle sensor according to claim 1, characterized in that the rotor (3) comprises a disc-shaped body (31) and a coupling assembly (32), the body (31) having a first end face and a second end face, the coupling assembly (32) being arranged at the first end face and being intended for connection with a transmission shaft of the gearbox, the magnetic element (4) being arranged at the second end face.

3. The angle sensor according to claim 2, wherein the connector assembly (32) comprises a clamp (322) and a plurality of arc-shaped pieces (321) arranged at intervals along the circumferential direction, the plurality of arc-shaped pieces (321) are enclosed to form a slot, the slot is used for being connected with the transmission shaft in an inserting mode, and the clamp (322) can press each arc-shaped piece (321) to the transmission shaft.

4. The angle sensor according to claim 2, wherein the body (31) is provided with a limiting hole (311), the housing (1) is provided with a through hole (14), the angle sensor further comprises a plug pin (5), and the plug pin (5) can be sequentially inserted into the through hole (14) and the limiting hole (311) along the axis direction of the rotation of the body (31).

5. The angle sensor according to claim 2, wherein a plurality of hooks (13) are provided on a wall of the first mounting groove (11), the hooks (13) being capable of abutting against the first end surface of the body (31) to restrict the body (31) from being detached from the first mounting groove (11).

6. The angle sensor according to claim 2, wherein the rotor (3) is made of a plastic material, the magnetic member (4) is made of a metal material, and the rotor (3) and the magnetic member (4) are integrally formed by an injection molding process.

7. The angle sensor according to any one of claims 1 to 6, wherein a plurality of mounting lugs (15) are provided on the housing (1), each mounting lug (15) is provided with a mounting hole (151), and a mounting sleeve (6) made of a metal material is fixed in each mounting hole (151).

8. The angle sensor according to any one of claims 1 to 6, wherein the Hall integrated circuit board (2) further comprises a plurality of terminals (23) connected with the circuit board (21), the terminals (23) are made of metal, the housing (1) is made of plastic, and each terminal (23) and the housing (1) are integrally formed through an injection molding process.

9. The angle sensor according to claim 8, wherein the housing (1) is provided with a plug groove (16), one end of the terminal (23) is connected to the circuit board (21), and the other end is located in the plug groove (16) and is used for being plugged with a butting connector.

10. The angle sensor according to any one of claims 1 to 6, characterized in that the angle sensor further comprises a cover plate (7), the cover plate (7) closing the slot of the second mounting groove (12).