Automobile combination switch structure

Abstract

The utility model provides an automobile combination switch structure which comprises a base, a gear handle assembly is connected to the base, a handle rod is arranged at one end of the gear handle assembly, a first magnet is fixedly arranged on the handle rod, a circuit board assembly is arranged at the position, located above the handle rod, in the base, and a second magnet is fixedly arranged on the circuit board assembly. And a group of first Hall sensors are arranged on the circuit board assembly corresponding to the position above the first magnet. The utility model aims to provide an automobile combination switch structure, and solves the problems that an existing automobile combination switch assembly with a Hall sensor is complex in structure and large in occupied internal space size of a product, and the number of parts is large.

Description

Technical Field

[0001] The invention relates to the technical field of automobile combination switches, and in particular to an automobile combination switch structure. Background Art

[0002] With the rapid development of the new energy vehicle industry, the degree of intelligence of automobiles is getting higher and higher. The combination switch assembly on the steering column is an important part of the car's intelligent cockpit. It is installed under the steering wheel. Through the components on the operating handle, it controls the switches of the car's lights, signals, and electrical appliances. The multi-function steering wheel switch is connected to the vehicle wiring harness through the clock spring in the combination switch assembly to transmit and connect electronic signals. Its core technology will be reflected in functional modularization, miniaturization, and reliable performance.

[0003] At present, the traditional combination switch assembly on the market is generally composed of three parts: combination switch handle, steering angle sensor, and clock spring. However, due to the increasing number of functions of the combination switch handle, many parts need to be set to realize its functions, but too many parts have brought new problems to the circuit design, mechanical structure layout, BOM management, and cost of the whole vehicle. For example, a multi-handle integrated automobile combination switch with announcement number CN213583612U uses six Hall sensors on the circuit board under the handle rod of its hand-held electronic shift handle assembly, and the matching magnet is large in size and has a large movement space, which requires a relatively large internal space size of the product; the matching of the magnet poles with the six Halls requires high precision, the calculation of the arrangement and combination of redundant signals is complex, and the cost of a large number of Hall sensors is relatively high. Therefore, how to design a combination switch assembly with simple and practical structure, stable performance, and low cost is an urgent problem that engineers and technicians in this field need to solve. Summary of the invention

[0004] The purpose of the present invention is to provide an automobile combination switch structure to solve the problems that the existing automobile combination switch assembly with Hall sensor has a complex structure, many parts and occupies a large internal space of the product.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A vehicle combination switch structure comprises a base, to which a handgrip handle assembly is connected, a handle rod is arranged at one end of the handgrip handle assembly, a first magnet is fixedly arranged on the handle rod, a circuit board assembly is arranged at a position above the handle rod in the base, and a group of first Hall sensors are arranged at a position corresponding to the position above the first magnet on the circuit board assembly.

[0007] Furthermore, the first magnet is a rectangular structure, and its two ends in the length direction are an S pole and an N pole respectively.

[0008] Furthermore, a magnet fixing seat is fixedly connected to the handle rod, and the first magnet is fixedly connected to the magnet fixing seat.

[0009] Furthermore, the magnet fixing seat is arranged across the handle bar, and two sides of the magnet fixing seat are clamped with two sides of the handle bar.

[0010] Furthermore, a fixing boss is provided on one side of the magnet fixing seat, and the fixing boss is fixedly connected to the handle rod by screwing.

[0011] Furthermore, a toggle groove for inserting a handle rod is provided on one side of the base, a rotating shaft is passed through the toggle groove, and a rotating shaft hole for rotationally connecting with the rotating shaft is provided on the handle rod.

[0012] Furthermore, a shift block is provided in the base, a shift groove of a V-shaped structure is provided in the shift block, and a shift track surface is provided on the shift groove; a spring and a shift top column are provided in the handle rod, and the shift top column abuts against the shift track surface.

[0013] Furthermore, the base is connected to a middle shell, the circuit board assembly is arranged on the middle shell, an upper cover is arranged above the circuit board assembly, a clock spring is connected to the upper cover, and the connector on the outer ring of the clock spring is electrically connected to the circuit board assembly.

[0014] Furthermore, a main gear is rotatably connected to the top of the circuit board assembly, and the main gear is fixedly connected to the inner ring of the clock spring, and the main gear is respectively engaged with the large gear and the small gear; a second magnet and a third magnet are respectively fixedly arranged at the center of the large gear and the small gear; a group of second Hall sensors are arranged at the position corresponding to the second magnet on the circuit board assembly, and a third Hall sensor is arranged at the position corresponding to the third magnet on the circuit board assembly.

[0015] Furthermore, the second magnet and the third magnet are both pancake-shaped structures, and the two semicircles of the second magnet and the third magnet are respectively the S pole and the N pole.

[0016] The beneficial effects of the present invention are as follows: the present invention reduces the number of Hall sensors in the vehicle combination switch assembly, simplifies the number of parts, realizes the function of the combination switch assembly through reasonable part structure design, saves product internal space, reduces product design difficulty, and saves production costs.

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1The present invention is a structural diagram of an automobile combination switch.

[0019] Figure 2 The invention discloses an exploded view of the connection structure of a middle housing, a base and a shift handle assembly of an automobile combination switch structure.

[0020] Figure 3 The present invention is an exploded view of a hand-gear handle combination switch.

[0021] Figure 4 It is a structural diagram of the hand-shift handle assembly of the present invention.

[0022] Figure 5 It is an exploded view of the hand-shift handle assembly of the present invention.

[0023] Figure 6 It is a structural diagram of the circuit board assembly in the present invention.

[0024] Figure 7 This is a diagram showing the matching structure of the clock spring and the main gear in the present invention.

[0025] Figure 8 It is a structural diagram of the base in the present invention.

[0026] Fig. 9 It is a structural diagram of the upper cover in the present invention.

[0027] Fig.10 It is a structural diagram of the shift block in the present invention.

[0028] Fig.11 This is a diagram of the connection structure of the first magnet and the magnet fixing seat in the present invention.

[0029] Fig.12 It is an exploded view of the first magnet and the magnet fixing seat in the present invention. DETAILED DESCRIPTION

[0030] like Figures 1 to 5 The illustrated automobile combination switch structure comprises a base 1, to which a handgrip handle assembly 6 is connected, one end of which is provided with a handle bar 601, on which a first magnet 602 is fixedly provided, a circuit board assembly 3 is provided at a position above the handle bar 601 in the base 1, and a group of first Hall sensors 301 are provided at a position corresponding to the position above the first magnet 602 on the circuit board assembly 3. When the handle bar 601 drives the first magnet 602 to move below the first Hall sensor 301, the first Hall sensor 301 outputs different SPI signals to the MCU for processing through changes in the magnetic pole position and the magnitude of the magnetic field, thereby realizing the RND electronic shifting function.

[0031] Preferably, in combination with the above scheme, Fig.12As shown, in order to simplify the transmission design of the Hall induction signal, the first magnet 7 is a rectangular structure, and its two ends in the length direction are an S pole and an N pole respectively.

[0032] Preferably, in combination with the above scheme, Figure 4 As shown, in order to facilitate the fixed assembly of the first magnet 602 , a magnet fixing seat 603 is fixedly connected to the handle bar 601 , and the first magnet 602 is fixedly connected to the magnet fixing seat 603 .

[0033] Preferably, in combination with the above scheme, Figure 4 As shown, in order to facilitate the installation and fixation of the magnet fixing seat 603 , the magnet fixing seat 603 is arranged across the handle bar 601 , and the two sides of the magnet fixing seat 603 are clamped with the two sides of the handle bar 601 .

[0034] Preferably, in combination with the above scheme, Fig.11 and Fig.12 As shown, in order to make the connection more secure, a fixing boss 6031 is provided on one side of the magnet fixing seat 603, and the fixing boss 6031 is fixedly connected to the handle rod 601 by screwing.

[0035] Preferably, in combination with the above scheme, Figure 8 As shown, in order to facilitate the rotation and toggling of the shift handle assembly 6 around the axis, a toggling groove 101 for inserting the handle rod 601 is provided on one side of the base 1, and a rotating shaft 102 is passed through the toggling groove 101, and as shown in FIG. Figure 4 and Figure 5 As shown, the handle bar 601 is provided with a rotating shaft hole 6011 for rotationally connecting with the rotating shaft 102 .

[0036] Preferably, in combination with the above scheme, Figure 2 and Fig.10 As shown, in order to achieve the gear feel when the hand-shift handle assembly 6 is moved, a gear block 7 is provided in the base 1, a V-shaped gear groove 701 is provided in the gear block 7, and a gear track surface is provided on the gear groove 701; a spring 604 and a gear top column 605 are provided in the handle rod 601, and the gear top column 605 abuts against the gear track surface.

[0037] Preferably, in combination with the above scheme, Figure 3 As shown, in order to facilitate the assembly of various parts and to drive the inner ring of the clock spring 5 to rotate when the steering wheel is turned to realize the transmission of the turn signal, the base 1 is connected to the middle shell 2, the circuit board assembly 3 is arranged on the middle shell 2, and an upper cover 4 is arranged above the circuit board assembly 3. The upper cover 4 is connected to the clock spring 5, and the connector 501 on the outer ring of the clock spring 5 is electrically connected to the circuit board assembly 3.

[0038] Preferably, in combination with the above solution, in order to integrate the angle sensor function on the combination switch, the main gear 8 is rotatably connected to the top of the circuit board assembly 3, such as Figure 3 and Figure 7 As shown, the main gear 8 is fixedly connected with the inner ring of the clock spring 5 by clamping, and the main gear 8 is meshed with the large gear 9 and the small gear 10 respectively; Fig. 9 As shown, the lower end surface of the upper cover 4 is provided with a circular groove adapted to the main gear 8, the large gear 9, and the small gear 10; the second magnet 901 and the third magnet 1001 are fixedly provided at the center of the large gear 9 and the small gear 10 respectively; Figure 6 As shown, a group of second Hall sensors 302 are arranged at the position corresponding to the second magnet 901 on the circuit board assembly 3, and a third Hall sensor 303 is arranged at the position corresponding to the third magnet 1001 on the circuit board assembly 3. When the clock spring 5 rotates, it drives the main gear 8 to rotate coaxially, and synchronously drives the large gear 9 and the small gear 10 of different sizes to rotate. The large gear 9 and the small gear 10 are respectively embedded with permanent magnets, the second magnet 901 and the third magnet 1001. When rotating, the magnetic poles of the magnets change synchronously, and the second Hall sensor 302 and the third Hall sensor 303 on the circuit board assembly 3 generate Hall effect output. A fast-rotating gear and a relatively slow-rotating gear, due to the existence of the speed difference, the two gears drive the rotating magnets, which will produce two different values, obtain a two-dimensional coordinate system, and finally form a linear angle output to determine the rotation angle of the steering wheel.

[0039] Preferably, in combination with the above scheme, Figure 3 As shown, in order to simplify the transmission design of the Hall sensing signal, the second magnet 901 and the third magnet 1001 are both pancake-shaped structures, and the two semicircles of the second magnet 901 and the third magnet 1001 are respectively the S pole and the N pole.

[0040] The utility model effectively integrates the functions of the combination switch handle, the angle sensor and the clock spring, reduces the design difficulty of the vehicle circuit and mechanical layout, reduces the number of parts BOM, improves the stability of the electronic shifting function and reduces the cost of parts.

[0041] In the description of the present invention, it is necessary to understand that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they all fall within the protection scope of the present invention.

Claims

1. A vehicle combination switch structure, comprising a base (1), a handgrip handle assembly (6) connected to the base (1), a handle rod (601) disposed at one end of the handgrip handle assembly (6), wherein: A first magnet (602) is fixedly arranged on the handle bar (601), a circuit board assembly (3) is arranged at a position above the handle bar (601) in the base (1), and a group of first Hall sensors (301) are arranged at a position corresponding to the position above the first magnet (602) on the circuit board assembly (3).

2. The automobile combination switch structure according to claim 1, characterized in that: The first magnet (602) is a rectangular structure, and its two ends in the length direction are an S pole and an N pole respectively.

3. The automobile combination switch structure according to claim 1, characterized in that: The handle bar (601) is fixedly connected to a magnet fixing seat (603), and the first magnet (602) is fixedly connected to the magnet fixing seat (603).

4. The automobile combination switch structure according to claim 3, characterized in that: The magnet fixing seat (603) is arranged across the handle bar (601), and two sides of the magnet fixing seat (603) are clamped with two sides of the handle bar (601).

5. The automobile combination switch structure according to claim 3, characterized in that: A fixing boss (6031) is provided on one side of the magnet fixing seat (603), and the fixing boss (6031) is fixedly connected to the handle bar (601) by screw connection.

6. The automobile combination switch structure according to claim 1, characterized in that: A toggle groove (101) for inserting a handle bar (601) is provided on one side of the base (1), a rotating shaft (102) is passed through the toggle groove (101), and a rotating shaft hole (6011) for rotationally connecting with the rotating shaft (102) is provided on the handle bar (601).

7. The automobile combination switch structure according to claim 1, characterized in that: The base (1) is provided with a shift block (7), the shift block (7) is provided with a shift groove (701) of a V-shaped structure, and the shift groove (701) is provided with a shift track surface; the handle bar (601) is provided with a spring (604) and a shift top column (605), and the shift top column (605) abuts against the shift track surface.

8. The automobile combination switch structure according to claim 1, characterized in that: The base (1) is connected to a middle shell (2), the circuit board assembly (3) is arranged on the middle shell (2), an upper cover (4) is arranged above the circuit board assembly (3), a clock spring (5) is connected to the upper cover (4), and a connector (501) on the outer ring of the clock spring (5) is electrically connected to the circuit board assembly (3).

9. The automobile combination switch structure according to claim 8, characterized in that: A main gear (8) is rotatably connected to the top of the circuit board assembly (3), and the main gear (8) is fixedly connected to the inner ring of the clock spring (5) by clamping, and the main gear (8) is respectively meshed with a large gear (9) and a small gear (10); a second magnet (901) and a third magnet (1001) are respectively fixedly arranged at the center of the large gear (9) and the small gear (10); a group of second Hall sensors (302) are arranged at the position corresponding to the second magnet (901) on the circuit board assembly (3), and a third Hall sensor (303) is arranged at the position corresponding to the third magnet (1001) on the circuit board assembly (3).

10. The automobile combination switch structure according to claim 9, characterized in that: The second magnet (901) and the third magnet (1001) are both pancake-shaped structures, and the two semicircles of the second magnet (901) and the third magnet (1001) are respectively the S pole and the N pole.

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