Hall rocker switch

Abstract

The utility model discloses a Hall rocker switch, which comprises a mounting base, an upper cover, a rocker, a swing shaft, a torsion spring and a magnetic induction assembly, and is characterized in that the mounting base and the upper cover form an accommodating cavity, the swing shaft is rotatably mounted in the accommodating cavity, and the rocker is linked with the swing shaft; the torsion spring comprises a first spiral torsion part and a second spiral torsion part which are symmetrically arranged and connected through a connecting section, the connecting section makes contact with the supporting structure of the mounting base and the linkage structure of the swing shaft, and the extending section of the first spiral torsion part and the extending section of the second spiral torsion part abut against the other side of the supporting structure and the other side of the linkage structure correspondingly. A bidirectional reset torque is provided; the magnetic induction assembly comprises a magnetic ring arranged on the swing shaft and a Hall sensor arranged on the installation base, the Hall sensor is used for detecting displacement of the swing shaft, and the double-spiral torsion spring reset mechanism achieves balance of left-right swing two-way reset torque and guarantees control precision.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic control devices, in particular to a Hall rocker switch. Background Art

[0002] The reset mechanism of a rocker switch is a core component that affects its operation accuracy and service life. Conventional rocker switches generally use a single torsion spring or a spring piece as a reset element, and there are the following key defects in its technical solution; the single torsion spring or the spring piece provides a reset force by abutting against the swing shaft unidirectionally, resulting in a significant deviation in the reset torque when the rocker swings left and right. After long-term use, spring fatigue will further exacerbate the torque imbalance, causing the rocker to deviate from the center position (i.e., the "drift" phenomenon), seriously affecting the control accuracy. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art, and to provide a Hall rocker switch.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a Hall rocker switch, comprising a mounting base, an upper cover, a rocker, a swing shaft, a torsion spring and a magnetic induction component. The mounting base and the upper cover form a receiving cavity, the swing shaft is rotatably mounted in the receiving cavity, and the rocker is linked with the swing shaft; the torsion spring includes symmetrically arranged first spiral torsion parts and second spiral torsion parts, which are connected by a connecting section. The connecting section contacts the support structure of the mounting base and the linkage structure of the swing shaft, and the extension sections of the first spiral torsion part and the second spiral torsion part respectively abut against the other sides of the support structure and the linkage structure to provide a bidirectional reset torque; the magnetic induction component includes a magnetic ring arranged on the swing shaft and a Hall sensor arranged on the mounting base, and the Hall sensor is used to detect the displacement of the swing shaft.

[0005] As a preferred technical solution of the utility model, the support structure is a support seat fixed to the mounting base, the linkage structure is a swing seat fixed to the swing shaft, and the connecting section is a U-shaped structure, and the bending radius thereof is adapted to the curvature of the contact surfaces of the support seat and the swing seat.

[0006] As a preferred technical solution of the utility model, the mounting base is provided with a positioning structure, and the Hall sensor of the magnetic induction component is fixed to the positioning structure through a circuit board, and the Hall sensor is vertically corresponding to the magnetic ring.

[0007] As a preferred technical solution of the utility model, the magnetic ring is fixed to the central position of the swing shaft, and the first spiral torsion part and the second spiral torsion part are respectively located on both sides of the magnetic ring.

[0008] As a preferred technical solution of the present utility model, the number of turns of the first spiral torsion part and the second spiral torsion part is equal.

[0009] As a preferred technical solution of the present utility model, the positioning structure includes an annular mounting part and at least two positioning columns arranged at intervals within the annular mounting part, and the circuit board is inserted and fixed to the positioning columns through positioning holes.

[0010] As a preferred technical solution of the present utility model, clamping plates are provided on both sides of the mounting base, hooks are provided at the upper ends of the clamping plates, clamping grooves adapted to the hooks are correspondingly provided on both sides of the upper cover, mounting holes are provided at the bottom of the mounting base, and connecting columns are provided inside the upper cover, and screws pass through the mounting holes and are locked to the threaded holes of the connecting columns.

[0011] As a preferred technical solution of the present utility model, the support structure and the mounting base are integrally formed, and the linkage structure and the swing shaft are integrally formed.

[0012] As a preferred technical solution of the present utility model, both ends of the swing shaft extend to the outside of the mounting base to form linkage parts, and the rocker is fitted with the linkage parts through linkage grooves.

[0013] As a preferred technical solution of the present utility model, support bosses are provided on both sides of the mounting base, first grooves are formed in the upper parts of the support bosses, second grooves are correspondingly provided on both sides of the upper cover, and the first grooves and the second grooves cooperate to form a circular hole for the swing shaft to rotate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the collaborative innovation of the double-spiral torsion spring reset mechanism and the precise positioning design of the magnetic ring, the present utility model significantly improves the accuracy, service life and reliability of the rocker switch. The first spiral torsion part and the second spiral torsion part are symmetrically distributed. Through the contact of the U-shaped connecting section with the support seat and the swing seat, and the two-way abutment of the extension section, the deviation of the left and right swing reset torque is reduced, and the problem of "center return drift" of the rocker is completely solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the present utility model without the rocker;

[0017] Figure 3 is a schematic structural diagram of the mounting base of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the cooperation between the swing shaft and the torsion spring of the present utility model;

[0019] Figure 5It is a structural schematic diagram of the torsion spring in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the rocker in the utility model;

[0021] Figure 7 It is a structural schematic diagram of the bottom of the installation base in the utility model.

[0022] Figure numerals: 1. mounting base; 11. support seat; 12. annular mounting portion; 121. positioning column; 13. snap-in plate; 131. hook; 14. supporting boss; 141. first groove; 15. mounting hole; 2. upper cover; 21. slot; 22. second groove; 23. connecting column; 3. rocker; 31. linkage slot; 4. swing shaft; 41. swing seat; 42. linkage portion; 5. torsion spring; 51. first spiral torsion portion; 52. second spiral torsion portion; 53. connecting section; 54. extension section; 6. circuit board; 61. positioning hole; 7. Hall sensor; 8. magnetic ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0024] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 7 A Hall rocker switch shown in the figure comprises a mounting base 1, an upper cover 2, a rocker 3, a swing shaft 4, a torsion spring 5 and a magnetic induction component, wherein the mounting base 1 and the upper cover 2 form a containing cavity, the swing shaft 4 is rotatably mounted in the containing cavity, and the rocker 3 is linked with the swing shaft 4; the torsion spring 5 comprises a first spiral torsion portion 51 and a second spiral torsion portion 52 which are symmetrically arranged, and the two are connected by a connecting section 53, the connecting section 53 is in contact with the supporting structure of the mounting base 1 and the linkage structure of the swing shaft 4, and the extending sections 54 of the first spiral torsion portion 51 and the second spiral torsion portion 52 are respectively in contact with the other side of the supporting structure and the linkage structure to provide a bidirectional reset torque; the magnetic induction component comprises a magnetic ring 8 arranged on the swing shaft 4 and a Hall sensor 7 arranged on the mounting base 1, the Hall sensor 7 is used to detect the displacement of the swing shaft 4, in this embodiment, the Hall sensor 7 works based on the Hall effect, and the process of outputting an electrical signal by sensing the magnetic field change of the magnetic ring 8 is a well-known technology in the art, so it is not repeated here.

[0026] Through the collaborative innovation of the reset mechanism of the double - helix torsion spring 5 and the precise positioning design of the magnetic ring 8, the accuracy, service life and reliability of the rocker 3 switch are significantly improved. The first helical torsion part 51 and the second helical torsion part 52 are symmetrically distributed. Through the contact of a part of the U - shaped connecting section 53 with the support base 11 and another part with the swing seat 41, and the cooperation of the bidirectional abutment of the extension section 54, the deviation of the left - right swing reset torque is reduced, and the problem of "center - return drift" of the rocker 3 is completely solved.

[0027] The support structure is the support base 11 fixed to the mounting base 1, the linkage structure is the swing seat 41 fixed to the swing shaft 4, and the connecting section 53 is a U - shaped structure, and its bending radius is adapted to the curvature of the contact surfaces of the support base 11 and the swing seat 41.

[0028] The mounting base 1 is provided with a positioning structure. The Hall sensor 7 of the magnetic induction component is fixed to the positioning structure through the circuit board 6, and the Hall sensor 7 is vertically corresponding to the magnetic ring 8. The Hall sensor 7 is vertically aligned with the annular mounting part 12 to the magnetic ring 8 to detect the angle error.

[0029] The magnetic ring 8 is fixed at the central position of the swing shaft 4, and the first helical torsion part 51 and the second helical torsion part 52 are respectively located on both sides of the magnetic ring 8. In this embodiment, the magnetic ring 8 is fixed at the center of the swing shaft 4, and the first / second helical torsion part 52 is distributed on both sides of it, avoiding the stress of the torsion spring 5 interfering with the position of the magnetic ring 8. The number of turns of the first helical torsion part 51 and the second helical torsion part 52 is equal.

[0030] The positioning structure includes an annular mounting part 12 and at least two positioning columns 121 spaced apart within the annular mounting part 12. The circuit board 6 is inserted and fixed to the positioning columns 121 through the positioning holes 61.

[0031] The two sides of the mounting base 1 are provided with clamping plates 13. The upper ends of the clamping plates 13 are provided with hooks 131. The two sides of the upper cover 2 are correspondingly provided with slots 21 that cooperate with the hooks 131. And the bottom of the mounting base 1 is provided with mounting holes 15, and the inside of the upper cover 2 is provided with connecting columns 23. Screws pass through the mounting holes 15 and are locked with the threaded holes of the connecting columns 23. The support structure is integrally formed with the mounting base 1, and the linkage structure is integrally formed with the swing shaft 4.

[0032] Both ends of the swing shaft 4 extend to the outside of the mounting base 1 to form a linkage part 42. The rocker 3 is fitted with the linkage part 42 through the linkage groove 31. The rocker 3 is quickly fitted with the linkage part 42 of the swing shaft 4 through the linkage groove 31, which supports manual disassembly and assembly, and improves the maintenance efficiency.

[0033] On both sides of the installation base 1, there are support bosses 14. A first groove 141 is formed in the upper part of the support boss 14. On both sides of the upper cover 2, there are corresponding second grooves 22. The first groove 141 and the second groove 22 cooperate to form a circular hole for the swing shaft 4 to rotate. The hook 131 and the card slot 21 are pre-positioned and locked with a combination screw.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Hall rocker switch, comprising a mounting base (1), an upper cover (2), a rocker (3), a swing shaft (4), a torsion spring (5) and a magnetic induction component, characterized in that: The mounting base (1) and the upper cover (2) form a housing cavity, the swing shaft (4) is rotatably mounted on the housing cavity, and the rocker (3) is linked to the swing shaft (4); the torsion spring (5) comprises a first spiral torsion portion (51) and a second spiral torsion portion (52) which are symmetrically arranged, and the two are connected by a connecting section (53), and the connecting section (53) is in contact with the supporting structure of the mounting base (1) and the linkage structure of the swing shaft (4), and the extension sections (54) of the first spiral torsion portion (51) and the second spiral torsion portion (52) are respectively in contact with the other side of the supporting structure and the linkage structure to provide a bidirectional reset torque; the magnetic induction component comprises a magnetic ring (8) arranged on the swing shaft (4) and a Hall sensor (7) arranged on the mounting base (1), and the Hall sensor (7) is used to detect the displacement of the swing shaft (4).

2. The Hall rocker switch according to claim 1, characterized in that: The supporting structure is a supporting seat (11) fixed to the mounting base (1), the linkage structure is a swinging seat (41) fixed to the swinging shaft (4), and the connecting section (53) is a U-shaped structure, the bending radius of which is adapted to the curvature of the contact surface of the supporting seat (11) and the swinging seat (41).

3. The Hall rocker switch according to claim 1, characterized in that: The mounting base (1) is provided with a positioning structure, the Hall sensor (7) of the magnetic induction component is fixed to the positioning structure via a circuit board (6), and the Hall sensor (7) corresponds vertically to the magnetic ring (8).

4. The Hall rocker switch according to any one of claims 1 to 3, characterized in that: The magnetic ring (8) is fixed at the center position of the swing shaft (4), and the first spiral twisted portion (51) and the second spiral twisted portion (52) are respectively located on both sides of the magnetic ring (8).

5. The Hall rocker switch according to claim 4, characterized in that: The first helical twisting portion (51) and the second helical twisting portion (52) have the same number of helical turns.

6. The Hall rocker switch according to claim 3, characterized in that: The positioning structure comprises an annular mounting portion (12) and at least two positioning posts (121) arranged at intervals in the annular mounting portion (12); the circuit board (6) is plugged and fixed to the positioning posts (121) via positioning holes (61).

7. The Hall rocker switch according to claim 1, characterized in that: The mounting base (1) is provided with a clamping plate (13) on both sides, and a clamping hook (131) is provided on the upper end of the clamping plate (13). The upper cover (2) is provided with a clamping groove (21) corresponding to the clamping hook (131) on both sides, and a mounting hole (15) is provided at the bottom of the mounting base (1). A connecting column (23) is provided inside the upper cover (2), and a screw passes through the mounting hole (15) and is locked with the threaded hole of the connecting column (23).

8. The Hall rocker switch according to claim 1 or 2, characterized in that: The support structure and the mounting base (1) are integrally formed, and the linkage structure and the swing shaft (4) are integrally formed.

9. The Hall rocker switch according to claim 1, characterized in that: Both ends of the swing shaft (4) extend to the outside of the mounting base (1) to form a linkage portion (42), and the rocker (3) is engaged with the linkage portion (42) through a linkage groove (31).

10. The Hall rocker switch according to claim 1, characterized in that: Support bosses (14) are provided on both sides of the mounting base (1), a first groove (141) is provided on the upper part of the support boss (14), and second grooves (22) are correspondingly provided on both sides of the upper cover (2), the first groove (141) cooperates with the second groove (22) to form a circular hole for the swing shaft (4) to rotate.

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