Gear rotation Hall sensing gear combination switch

Abstract

The invention relates to the technical field of gear switches, in particular to a gear rotation Hall sensing gear combination switch which comprises a body, a left steering windscreen wiper switch and a right gear switch are arranged on the two sides of the body respectively, and a second self-tapping screw is arranged on one side of the right gear switch and one side of the body in a penetrating mode. The right gear switch and the left steering windscreen wiper switch are detachably connected with the body through second self-tapping screws. The gear shifting induction device has the advantages of accurate gear shifting induction and reliable P gear function, in the actual using process, a gear transmission mode is designed, the main gear is driven to move by pulling the gear handle, and the Hall sensor is activated within the circumferential range; firstly, through transmission of the two gears, gear R-N-D signals are accurately output, the gear shifting reliability is completely ensured, due to the good meshing design of the plastic gears, the overall noise of the switch is reduced by about 3dB, and due to the circular motion of gear rotation, the interior of the switch can be made into a very small structure.

Description

Technical Field

[0001] The invention relates to the technical field of hand-gear switches, in particular to a hand-gear combination switch with gear rotation Hall induction. Background Art

[0002] Generally, the layout of the car combination switch is the light and turn switch on the left, and the wiper switch on the left. Due to the rapid development of electric vehicles, in order to make operation more convenient, the shift switch is arranged on the right side of the combination switch, replacing the wiper switch, and the wiper and turn switches are all concentrated on the left side. Since the shift lever is closer to the chest, it is renamed the arm shift switch.

[0003] Since the hand-gear switch is an important safety part of the vehicle, the existing contact type and mobile Hall type have technical defects and shortcomings: 1. Contact type: As the name implies, the contact type is the active contact between the spring sheet and the PCB board. After connection, it sends a signal to the car ECU to change the gear RDN and P gear. The contact is subject to the elasticity of the reed. After the durability test, it is severely worn, resulting in increased contact resistance and unreliable contact, which leads to failure of vehicle gear switching and serious safety accidents. The durability requirement of the armrest switch is 300,000 times, and the reed type contact can reach up to 200,000 times, which cannot meet the durability requirements; P gear is the parking gear, and the existing armrest switches all use silicone nickel contact pressing method, with a maximum of 2-way output, and cannot realize the electronic parking EPB function. The mesh on the surface of the nickel particle contact is easy to accumulate dust, resulting in poor contact.

[0004] 2. Mobile Hall type: When the hand-shift handle is turned, the linear motion drives the magnet to move, thereby sensing multiple different Hall chips. Since the linear motion is subject to the randomness of the driver's operation, the position accuracy error of the hand-shift gear is about 3°, which may cause the recognition speed and accuracy of the gear shift. The operating angle tolerance of the hand-shift switch is within 2°, so there is a risk of misoperation. Mobile Hall sensing must design a larger magnet structure and multiple Hall sensors, resulting in high cost and increased switch appearance. The larger magnet structure has higher requirements for the polarity control of the magnet, and the protection requirements for the switch must be increased by one level.

[0005] Therefore, there is an urgent need for a gear rotation Hall-sensing hand-gear combination switch to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a gear rotation Hall sensing hand-shift combination switch, which has the advantages of accurate gear shift sensing and reliable P gear function, and solves the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gear rotation Hall-sensing hand-gear combination switch, comprising: a main body, a left turn wiper switch and a right hand-gear switch are respectively arranged on both sides of the main body, two self-tapping screws are arranged through the right hand-gear switch and one side of the main body, the right hand-gear switch and the left turn wiper switch are both detachably connected to the main body by the two self-tapping screws, and a clock spring is arranged on the front side of the main body, and the clock spring is detachably connected to the main body by the two self-tapping screws.

[0008] The right arm shift switch includes an arm shift shell, the inner cavity of the arm shift shell is provided with a gear pair, the inner cavity of the gear pair is provided with a magnet, the inner cavity of the arm shift shell is provided with a main gear, the arm shift shell and the main gear are used in combination, the inner cavity of the main gear is engaged with a handle shaft, the inner cavity of the arm shift shell is provided with an arm shift block, the arm shift shell and the arm shift block form a snap connection, the inner cavity of the arm shift block is provided with a movable pin, the surface of the movable pin is sleeved with an arm shift spring, the arm shift spring is sleeved on the surface of the handle shaft, a arm shift handle is provided on one side of the main gear, a arm shift upper cover is provided on one side of the arm shift shell, the arm shift upper cover is inserted into the inner cavity of the arm shift shell and fixedly connected by a built-in buckle, the inner cavity of the arm shift shell is provided with a Hall sensor and an arm shift PCB board, and the Hall sensor is adapted to the clock spring.

[0009] A wiring harness is provided on one side of the main body, and the wiring harness is used in conjunction with a left turn wiper switch and a right hand-shift switch respectively. Connectors are provided at both ends of the wiring harness to be electrically connected to the hand-shift PCB board.

[0010] Furthermore, as a preferred embodiment of the present invention, a slot is provided in the inner cavity of the gear pair, an elastic buckle is provided in the inner cavity of the slot, the slot and the elastic buckle are used together, and one side of the magnet is fixedly connected to the elastic buckle.

[0011] Furthermore, as a preferred embodiment of the present invention, a positioning column is fixedly connected to the inner cavity of the armrest housing, and a positioning hole matched with the positioning column is opened on one side of the armrest PCB board.

[0012] Furthermore, as a preferred embodiment of the present invention, a hand-grip bottom cover is provided on the other side of the hand-grip shell, a self-tapping screw 1 is provided through one side of the hand-grip bottom cover, and the hand-grip bottom cover is detachably connected to the hand-grip shell by the self-tapping screw 1.

[0013] Furthermore, as a preferred embodiment of the present invention, a positioning cavity is opened on one side of the inner cavity of the hand-shift housing, and the gear pair and the main gear are both located in the inner cavity of the positioning cavity.

[0014] Furthermore, as a preferred embodiment of the present invention, a square hole is opened on one side of the main gear, and the handle shaft is located in the inner cavity of the square hole and is used in conjunction with the square hole.

[0015] Furthermore, as a preferred embodiment of the present invention, a clamping block is fixedly connected to one side of the armrest spring, and the clamping block is clamped into the inner cavity of the armrest shift block.

[0016] Furthermore, as a preferred embodiment of the present invention, the surface of the left turn wiper switch is provided with anti-slip grooves.

[0017] Beneficial effects: The technical solution of the present application has the following technical effects: the present invention has the advantages of precise gear shift sensing and reliable P gear function. In actual use, a gear transmission method is designed. By pulling the gear handle, the main gear is driven to move, and the Hall sensor is activated within a circular range; first, through two gear transmissions, the gear RND signal is accurately output, and the reliability of the gear shift is 100% ensured. Due to the good meshing design of the plastic gears, the overall noise of the switch is reduced by about 3dB. The circular motion of the gear rotation allows the switch to have a very small structure inside. The rotation of a single magnet saves two Hall chips, greatly reducing costs and improving reliability. Secondly, the P gear two-way on and two-way off structure of the present invention adopts a redundant design, so that during the use of the switch, it is ensured that one signal is normally connected after being pressed. The P gear function is integrated with the electronic parking EPB function, and a single EPB switch can be reduced on the car, saving costs.

[0018] And the advantages of gear transmission described above are: 1. High transmission efficiency: The efficiency of gear transmission is usually above 90%, which is the highest efficiency among all mechanical transmissions.

[0019] 2. Compact structure: The space required for gear transmission is small, which is suitable for use in environments with limited space.

[0020] 3. Reliable operation: The gear transmission is designed and manufactured with high precision, so it works reliably and has a long service life.

[0021] ‌‌4. Can ensure a constant transmission ratio: Gear transmission can ensure a constant transmission ratio between the two shafts and accurate transmission. ‌ The P gear function is designed with a dual-path reed contact structure. When pressed, the two paths are connected, and after rebounding, the two paths are disconnected, realizing the electronic parking function of the car. The reed and contacts are gold-plated, and the durability can reach 500,000 times.

[0022] In order to ensure reliable positioning of the gear, the center cylinder adopts a high-precision polishing process with an accuracy of within 0.01. A center positioning structure is also added to the upper cover of the armrest so that the gear always remains in the center position after being installed in the switch, ensuring the accurate positioning of the armrest function. The gear material is POM material with self-lubricating properties. It is produced on an electric injection molding machine with a temperature of 180°C, a holding time of 10 seconds, and a pressure of 90MPa. The accuracy of the gear reaches within 0.01mm. Since the entire combination switch is output through the bus, it is not suitable to use two ports for output. The present invention concentrates the two ports on one port on the armrest side for output, and the left and right switches are connected with a wiring harness and a connector sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a partial side view of the present invention; Figure 3 The local structure of the right hand-gear switch of the present invention is schematically shown. Figure 1 ; Figure 4 The local structure of the right hand-gear switch of the present invention is schematically shown. Figure 2 ; Figure 5 It is a diagram for the local structure decomposition and use of the present invention; Figure 6 This is the operating curve diagram of the hand-held switch of the present invention.

[0024] In the figure, the meaning of each reference numeral is as follows: 1. left turn wiper switch; 2. main body; 3. clock spring; 4. right arm shift switch; 41. arm shift housing; 42. gear pair; 43. magnet; 44. main gear; 45. handle shaft; 46. arm shift handle; 47. arm shift block; 48. movable pin; 49. arm shift spring; 410. arm shift upper cover; 411. Hall sensor; 412. arm shift PCB board; 413. arm shift bottom cover; 414. self-tapping screw one; 5. self-tapping screw two; 6. wiring harness; 7. slot; 8. elastic buckle; 9. positioning column; 10. positioning cavity; 11. square hole; 12. block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In order to better understand the technical content of the present invention, specific embodiments are cited and explained in conjunction with the drawings as follows. Various aspects of the present invention are described in this disclosure with reference to the drawings, in which many illustrative embodiments are shown. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] As attached Figure 1 To Attachment Figure 6 As shown: This embodiment provides a gear rotation Hall-sensing arm shift combination switch, comprising: a main body 2, a left turn wiper switch 1 and a right arm shift switch 4 are respectively provided on both sides of the main body 2, a self-tapping screw 2 5 is penetrated through the right arm shift switch 4 and one side of the main body 2, the right arm shift switch 4 and the left turn wiper switch 1 are both detachably connected to the main body 2 by the self-tapping screw 2 5, a clock spring 3 is provided on the front side of the main body 2, and the clock spring 3 is detachably connected to the main body 2 by the self-tapping screw 2 5.

[0027] The right arm shift switch 4 includes an arm shift housing 41, a arm shift bottom cover 413 is provided on the other side of the arm shift housing 41, a self-tapping screw 414 is provided through one side of the arm shift bottom cover 413, the arm shift bottom cover 413 is detachably connected to the arm shift housing 41 through the self-tapping screw 414, the inner cavity of the arm shift housing 41 is provided with a gear pair 42, the inner cavity of the gear pair 42 is provided with a magnet 43, the inner cavity of the arm shift housing 41 is provided with a main gear 44, the arm shift housing 41 and the main gear 44 are used together, the inner cavity of the main gear 44 is engaged with a handle shaft 45, and the inner cavity of the arm shift housing 41 is provided with an arm shift block 4 7. A snap-fit ​​connection is formed between the arm shift housing 41 and the arm shift block 47. A movable pin 48 is provided in the inner cavity of the arm shift block 47. A arm shift spring 49 is sleeved on the surface of the movable pin 48. The arm shift spring 49 is sleeved on the surface of the handle shaft 45. An arm shift handle 46 is provided on one side of the main gear 44. An arm shift upper cover 410 is provided on one side of the arm shift housing 41. The arm shift upper cover 410 is inserted into the inner cavity of the arm shift housing 41 and fixedly connected by a built-in buckle. A Hall sensor 411 and an arm shift PCB board 412 are provided in the inner cavity of the arm shift housing 41. The Hall sensor 411 is adapted to the clock spring 3.

[0028] A wiring harness 6 is provided on one side of the body 2 , and the wiring harness 6 is used in conjunction with the left turn wiper switch 1 and the right hand-shift switch 4 , respectively. Connectors are provided at both ends of the wiring harness 6 to be electrically connected to the hand-shift PCB board 412 .

[0029] Specifically, a slot 7 is provided in the inner cavity of the gear pair 42 , and an elastic buckle 8 is provided in the inner cavity of the slot 7 . The slot 7 and the elastic buckle 8 are used together, and one side of the magnet 43 is fixedly connected to the elastic buckle 8 .

[0030] In this embodiment, the positioning of the magnet 43 and the gear pair 42 is achieved by using the slot 7 and the elastic buckle 8 in coordination, thereby facilitating the gear pair 42 to drive the magnet 43 to rotate.

[0031] Specifically, a positioning column 9 is fixedly connected to the inner cavity of the armrest housing 41 , and a positioning hole matched with the positioning column 9 is opened on one side of the armrest PCB board 412 .

[0032] In this embodiment: by setting the positioning column 9, the hand-held barrier PCB board 412 is positioned, thereby improving the stability of the hand-held barrier PCB board 412.

[0033] Specifically, a positioning cavity 10 is opened on one side of the inner cavity of the armrest housing 41 , and the gear pair 42 and the main gear 44 are both located in the inner cavity of the positioning cavity 10 .

[0034] In this embodiment, the positioning cavity 10 is provided to place the gear pair 42 and the main gear 44 , and to provide space for the movement of the gear pair 42 and the main gear 44 .

[0035] Specifically, a square hole 11 is opened on one side of the main gear 44 , and the handle shaft 45 is located in the inner cavity of the square hole 11 and cooperates with the square hole 11 for use.

[0036] In this embodiment, the square hole 11 is provided to adapt the handle shaft 45, thereby improving the rationality of the structural layout.

[0037] Specifically, a clamping block 12 is fixedly connected to one side of the armrest spring 49 , and the clamping block 12 is clamped into the inner cavity of the armrest shifting block 47 .

[0038] In this embodiment: through the provision of the clamping block 12, it is convenient to clamp the armrest spring 49 and the armrest shifting block 47 together, thereby providing stability to the armrest spring 49 during operation.

[0039] Specifically, the surface of the left turn wiper switch 1 is provided with anti-slip grooves.

[0040] In this embodiment, by providing the anti-slip pattern, when the user operates the left-turn wiper switch 1 , the friction between the user's hand and the left-turn wiper switch 1 is increased, thereby achieving the purpose of saving time and effort.

[0041] The working principle and use process of the present invention: Assembly structure: the left turn wiper switch 1 and the right arm shift switch 4 are installed in the main body 2 and fastened with self-tapping screws 25; the clock spring 3 is also installed in the main body of the main body 2 and fastened with self-tapping screws 25. This clock spring 3 is usually used to connect electrical connections such as airbags; the magnet 43 is inserted into the gear pair 42 and fastened with it through the slot 7 and the elastic buckle 8. The gear pair 42 is installed in the positioning cavity 10 of the arm shift housing 41, and the main gear 44 and the arm shift housing 41 are precisely matched with 0 clearance, and the handle shaft 45 is inserted into the square hole 11 of the main gear 44. The arm shift block 47 is inserted into the arm shift housing 41 and fastened by the block 12. The movable pin 48 and the arm shift spring 49 are put together and then installed in the arm shift handle 46, the arm shift handle 46 is inserted into the groove of the arm shift block 47, and the movable pin 48 moves in the groove of the arm shift block 47 to realize the operation gear and provide a hand feel; after the arm shift upper cover 410 covers one side of the left turn wiper switch 1, and is fastened with the arm shift shell 41 through the built-in buckle, the arm shift upper cover 410 and the arm shift bottom cover 413 are turned over, and the Hall sensor 411 and the arm shift PCB board 412 are installed in the arm shift shell 41, wherein the arm shift PCB board 412 is positioned with the arm shift shell 41 through the positioning column 9, the Hall sensor 411 is automatically aligned with the magnet 43, installed in the arm shift bottom cover 413, and fastened by a self-tapping screw 414.

[0042] Functionality: When the hand-shift handle 46 is operated, the movable pin 48 moves the main gear 44, thereby driving the gear pair 42 to rotate, and the magnet 43 rotates with the gear pair 42, resulting in a change in the polarity of the magnet. The Hall sensor 411 senses the change in the polarity of the magnet and outputs signals at different angles. The gear position is mainly achieved through the curve and surface structure of the hand-shift block 47. This structure obtains a curve through calculation, and then 3D modeling is performed to design an operating force curve that meets the requirements. The wiring harness 6 is connected to the left turn wiper switch 1 and the right hand-shift switch 4. There are connectors at both ends of the wiring harness 6 that are fastened to the hand-shift PCB board 412, and then the hand-shift upper cover 410 is covered.

[0043] Extended functionality: On one side of the clock spring 3, a mounting position for the angle sensor SAS is reserved to expand the function of the gear shift switch.

[0044] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0045] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A gear rotation Hall induction hand-gear combination switch, comprising: A body (2), characterized in that: a left turn wiper switch (1) and a right armrest switch (4) are respectively arranged on both sides of the body (2); a second self-tapping screw (5) is provided through the right armrest switch (4) and one side of the body (2); the right armrest switch (4) and the left turn wiper switch (1) are both detachably connected to the body (2) via the second self-tapping screw (5); a clock spring (3) is arranged on the front side of the body (2); the clock spring (3) is detachably connected to the body (2) via the second self-tapping screw (5); The right arm shift switch (4) comprises an arm shift housing (41), the inner cavity of the arm shift housing (41) is provided with a gear pair (42), the inner cavity of the gear pair (42) is provided with a magnet (43), the inner cavity of the arm shift housing (41) is provided with a main gear (44), the arm shift housing (41) and the main gear (44) are used in conjunction with each other, the inner cavity of the main gear (44) is engaged with a handle shaft (45), the inner cavity of the arm shift housing (41) is provided with an arm shift block (47), the arm shift housing (41) and the arm shift block (47) are engaged with each other, and the inner cavity of the arm shift block (47) is provided with a main gear (44). A movable pin (48) is provided, a hand-held spring (49) is sleeved on the surface of the movable pin (48), and the hand-held spring (49) is sleeved on the surface of the handle shaft (45); a hand-held handle (46) is provided on one side of the main gear (44); a hand-held upper cover (410) is provided on one side of the hand-held housing (41); the hand-held upper cover (410) is inserted into the inner cavity of the hand-held housing (41) and is fixedly connected by a built-in buckle; a Hall sensor (411) and a hand-held PCB board (412) are provided in the inner cavity of the hand-held housing (41); and the Hall sensor (411) is adapted to the clock spring (3); A wiring harness (6) is provided on one side of the body (2), and the wiring harness (6) is used in conjunction with a left windshield wiper switch (1) and a right hand-shift switch (4), respectively; connectors are provided at both ends of the wiring harness (6) and are electrically connected to a hand-shift PCB board (412).

2. The gear rotation Hall induction hand-gear combination switch according to claim 1, characterized in that: The inner cavity of the gear pair (42) is provided with a slot (7), the inner cavity of the slot (7) is provided with an elastic buckle (8), the slot (7) and the elastic buckle (8) are used in conjunction with each other, and one side of the magnet (43) is fixedly connected to the elastic buckle (8).

3. The gear rotation Hall induction hand-gear combination switch according to claim 1, characterized in that: A positioning column (9) is fixedly connected to the inner cavity of the hand-held gear housing (41), and a positioning hole matching the positioning column (9) is provided on one side of the hand-held gear PCB board (412).

4. The gear rotation Hall induction hand-gear combination switch according to claim 1, characterized in that: A hand-grip bottom cover (413) is provided on the other side of the hand-grip housing (41), and a self-tapping screw (414) is provided through one side of the hand-grip bottom cover (413). The hand-grip bottom cover (413) is detachably connected to the hand-grip housing (41) via the self-tapping screw (414).

5. The gear rotation Hall induction hand-gear combination switch according to claim 1, characterized in that: A positioning cavity (10) is provided on one side of the inner cavity of the handbrake housing (41), and the gear pair (42) and the main gear (44) are both located in the inner cavity of the positioning cavity (10).

6. The gear rotation Hall induction hand-gear combination switch according to claim 1, characterized in that: A square hole (11) is provided on one side of the main gear (44), and the handle shaft (45) is located in the inner cavity of the square hole (11) and cooperates with the square hole (11).

7. The gear rotation Hall induction hand-gear combination switch according to claim 1, characterized in that: A clamping block (12) is fixedly connected to one side of the armrest spring (49), and the clamping block (12) is clamped into the inner cavity of the armrest shifting block (47).

8. The gear rotation Hall induction hand-gear combination switch according to claim 1, characterized in that: The surface of the left-turn wiper switch (1) is provided with anti-slip patterns.

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