Gear shifting induction device

Abstract

The utility model discloses a gear shifting induction device which comprises a surface cover, a light blocking piece, a PCBA (Printed Circuit Board Assembly) board and a fixing piece, and a light transmitting piece is arranged on the surface cover; the light blocking piece is detachably connected to the lower end of the surface cover; the PCBA board is arranged below the light blocking piece, a sensing piece is arranged at the lower end of the PCBA board, the sensing piece comprises a first Hall sensor, a second Hall sensor and a third Hall sensor, and the first Hall sensor, the second Hall sensor and the third Hall sensor are distributed below the PCBA board at an angle of 30 degrees; and a magnet piece is arranged between the fixing piece and the PCBA board. The gear shifter has the advantages that the technical problems that in the prior art, most of existing gear shifters adopt grating sensors, the sensors easily affect the detection precision of the gear shifters in a severe environment, errors of detection results of the gear shifters are caused, and the overall use performance and safety of the gear shifters are affected subsequently are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile equipment, concretely relates to a gear shifting sensing device. BACKGROUND

[0002] The gear shifter is a common mechanical device, which is used for realizing gear shifting operation in vehicles such as automobiles and motorcycles, and its working principle is to connect and separate the clutch and gear on the wheel shaft, so that the rotation speed of the engine can be transmitted to the wheels through the transmission system, thereby realizing driving at different speeds.

[0003] The conventional gear shifter has many deficiencies in function realization and reliability. The conventional gear shifter often needs multiple circuit boards or complex circuit structures to process light character display and gear shifting signal processing functions, which not only increases the size and cost of the device, but also increases the system complexity and the failure rate. In the gear position detection aspect, the conventional gear shifter with unlimited rotation often uses a grating sensor. This sensor has relatively harsh requirements for the environment, for example, in environments with dust, high humidity, or large temperature changes, its detection accuracy is easily affected, leading to inaccurate or even invalid gear shifting signals. Moreover, the service life of the grating sensor itself is relatively limited, and it needs to be maintained and replaced frequently, affecting the overall performance and safety of the gear shifter. SUMMARY

[0004] The utility model aims at overcoming the above technical deficiencies, providing a gear shifting sensing device to solve the technical problem that the existing gear shifter in the prior art mostly uses a grating sensor, which is easily affected in harsh environments, resulting in errors in the detection results and subsequent effects on the overall performance and safety of the gear shifter.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] In a first aspect, the utility model provides a gear shifting sensing device, comprising:

[0007] A face cover is provided with a light transmission part;

[0008] A light blocking part is detachably connected to the lower end of the face cover;

[0009] A PCBA board is arranged below the light blocking part, and an induction part is arranged at the lower end of the PCBA board, the induction part comprising a first Hall inductor, a second Hall inductor and a third Hall inductor, the first Hall inductor, the second Hall inductor and the third Hall inductor being distributed below the PCBA board at an angle of 30°;

[0010] A fixing member is mounted at the lower end of the PCBA board, and a magnet member is arranged between the fixing member and the PCBA board, the magnet member comprising a first magnet, a second magnet, a third magnet and a fourth magnet, wherein the first magnet, the second magnet, the third magnet and the fourth magnet are distributed at 90° on the fixing member.

[0011] In some embodiments, the light-transmitting member comprises a first light-transmitting mark, a second light-transmitting mark and a third light-transmitting mark, which are arranged in a triangular shape at the upper end of the face cover.

[0012] In some embodiments, a plurality of mounting notches are arranged circumferentially at the lower end of the face cover, and a plurality of protrusions corresponding to the mounting notches are arranged on the light-blocking member.

[0013] In some embodiments, a plurality of clamping blocks are arranged circumferentially at the outer periphery of the face cover, and a through hole is arranged on each clamping block, and a plurality of assembly blocks corresponding to the clamping blocks are arranged circumferentially at the outer periphery of the light-blocking member, and the assembly blocks are clamped in the through holes.

[0014] In some embodiments, the clamping blocks are plastic blocks.

[0015] In some embodiments, a plurality of light-transmitting holes corresponding to the first light-transmitting mark, the second light-transmitting mark and the third light-transmitting mark are arranged on the light-blocking member.

[0016] In some embodiments, a light character display module and a gear shifting signal processing module are arranged on the PCBA board.

[0017] Compared with the prior art, the gear shifting sensing device provided by the utility model, wherein the mounting structure of three hall sensors and four magnets, four magnets are distributed in 90 degrees in the upper end circumference of the fixing part, three hall elements are distributed in 30 degrees in the lower end of the PCBA board, four magnets are reasonably arranged on the gear shifting lever or the structure linked with the gear shifting lever, ensure that the three hall sensors of the magnet relative to the fixed position produce regular relative motion in the gear shifting process, the hall sensor is based on the hall effect, wherein the hall effect is an important transport phenomenon, applicable to conductor and semiconductor material, widely used for detecting the concentration of charge carriers around or the size of magnetic field or current; when the solid material carrying current is introduced into the magnetic field perpendicular to the current direction, the transverse electric field is generated, thereby generating voltage, so that the change of magnetic field intensity and direction can be sensitively perceived and converted into electric signal and transmitted to the PCBA board, through different combination and analysis of the electric signal generated by the three hall sensors, the accurate switching identification of up to 12 gears can be realized, compared with the traditional grating sensor, the dependence on the environment is reduced, and the stability and reliability are higher, the hall sensor itself has no mechanical contact part, and there is no wear problem, thereby effectively prolonging the service life of the gear shifting device, and the gear shifting operation safety is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall schematic view of the gear shifting sensing device provided by the utility model embodiment;

[0019] Figure 2 It is the inside schematic view of the light shielding piece of the gear shifting sensing device provided by the utility model embodiment;

[0020] Figure 3 It is the PCBA board structure schematic view of the gear shifting sensing device provided by the utility model embodiment;

[0021] Figure 4 It is the fixed part bottom view of the gear shifting sensing device provided by the utility model embodiment;

[0022] Figure 5 It is the side surface schematic view of the gear shifting sensing device provided by the utility model embodiment;

[0023] Figure 6 It is the explosion schematic view of the gear shifting sensing device provided by the utility model embodiment;

[0024] Figure 7 It is the magnet part installation schematic view of the gear shifting sensing device provided by the utility model embodiment;

[0025] Figure 8 It is the sensing part installation schematic view of the gear shifting sensing device provided by the utility model embodiment.

[0026] Explanation of reference signs: 1, face cover; 11, light-transmitting piece; 111, first light-transmitting mark; 112, second light-transmitting mark; 113, third light-transmitting mark; 12, mounting notch; 13, clamping block; 131, through hole; 2, light-blocking piece; 21, protrusion; 22, assembly block; 23, light-transmitting hole; 3, PCBA board; 31, sensing piece; 311, first Hall sensor; 312, second Hall sensor; 313, third Hall sensor; 4, fixing piece; 41, magnet piece; 411, first magnet; 412, second magnet; 413, third magnet; 414, fourth magnet. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0028] In order to solve the technical problems that the existing gear shifters in the prior art mostly adopt grating sensors, such sensors are easily affected in detection accuracy in harsh environments, thereby leading to errors in detection results, and subsequently affecting the overall use performance and safety of the gear shifter, the utility model provides a gear shift sensing device, which can prolong the service life of the gear shift device, and still maintain good working performance in complex environments, greatly improving the safety of gear shift operation.

[0029] It should be noted that the gear shift sensing device of the utility model is used in but not limited to the field of automobiles and the like. In order to facilitate the description, in the utility model, only the gear shift sensing device applied in the field of automobiles is taken as an example for description, and the principle of the gear shift sensing device applied in other types of equipment is substantially the same as that applied in the field of automobiles, which will not be described here.

[0030] Please refer to Figure 1 , Figure 1The utility model discloses a structural diagram of gear shifting sensing device in one embodiment of the utility model, a gear shifting sensing device, including face cover 1, light blocking piece 2, PCBA board 3 and fixing piece 4, be equipped with the light transmission piece 11 on face cover 1, light blocking piece 2 can be detached and connected in face cover 1 lower extreme, PCBA board 3 sets up below light blocking piece 2, and PCBA board 3 lower extreme is provided with sensing piece 31, and sensing piece 31 includes first hall sensor 311, second hall sensor 312 and third hall sensor 313, and first hall sensor 311, second hall sensor 312 and third hall sensor 313 are distributed below PCBA board 3 30, and fixing piece 4 is installed in PCBA board 3 lower extreme, and there is magnet piece 41 between fixing piece 4 and PCBA board 3, and magnet piece 41 includes first magnet 411, second magnet 412, third magnet 413 and fourth magnet 414, wherein first magnet 411, second magnet 412, third magnet 413 and fourth magnet 414 are distributed on fixing piece 4 90 degrees periphery.

[0031] In the embodiment, the installation structure of three hall sensors and four magnets is used, the four magnets are distributed 90 degrees periphery on the upper end of the fixing piece 4, and the three hall devices are distributed 30 degrees on the lower end of the PCBA board 3. The four magnets are reasonably arranged on the gear shifting lever or the structure linked with the gear shifting lever, so that the regular relative movement of the magnets relative to the three hall sensors in the fixed position is ensured during the gear shifting process. The hall sensor is based on the Hall effect, which is an important transport phenomenon suitable for conductors and semiconductor materials and is widely used for detecting the concentration of charge carriers around the magnetic field or the current size. When the solid material carrying current is introduced into the magnetic field perpendicular to the current direction, a transverse electric field is generated, thereby generating a voltage. This can sensitively perceive the change of the magnetic field strength and direction and convert it into an electrical signal transmitted to the PCBA board 3. Through different combinations and analysis of the electrical signals generated by the three hall sensors, the precise switching identification of up to 12 gears can be realized. Compared with the traditional grating sensor, this design reduces the dependence on the environment and has higher stability and reliability. The hall sensor itself has no mechanical contact component and has no wear problem, thereby effectively prolonging the service life of the gear shifting device and maintaining good working performance in complex environments, greatly improving the safety of the gear shifting operation.

[0032] In one embodiment, please refer to Figures 1-5 To improve the display effect of the light transmission piece 11, the light transmission piece 11 includes first light transmission mark 111, second light transmission mark 112 and third light transmission mark 113. The first light transmission mark 111, the second light transmission mark 112 and the third light transmission mark 113 are arranged in a triangular shape on the upper end of the face cover 1. The light blocking piece 2 is provided with a plurality of light transmission holes 23 matched with the first light transmission mark 111, the second light transmission mark 112 and the third light transmission mark 113.

[0033] In the embodiment, the first light-transmitting mark 111 is in the shape of R, the second light-transmitting mark 112 is in the shape of N, and the third light-transmitting mark 113 is in the shape of D, wherein the light-transmitting piece 11 is provided with light-transmitting holes 23 matched with the first light-transmitting mark 111, the second light-transmitting mark 112 and the third light-transmitting mark 113, so as to facilitate the light to penetrate the light-blocking piece 2 and irradiate on the first light-transmitting mark 111, the second light-transmitting mark 112 and the third light-transmitting mark 113.

[0034] In one of the embodiments, referring to Figures 1-8 In order to improve the installation and dismount efficiency between the face cover 1 and the light-blocking piece 2, the lower end of the face cover 1 is provided with a plurality of installation notches 12 in the circumferential direction, the light-blocking piece 2 is provided with a plurality of protrusions 21 matched with the installation notches 12 one by one, and the outer periphery of the face cover 1 is further provided with a plurality of clamping blocks 13, each of which is provided with a through hole 131, and the outer periphery of the light-blocking piece 2 is provided with assembly blocks 22 matched with the clamping blocks 13, the assembly blocks 22 are clamped in the through holes 131, and the clamping blocks 13 are plastic blocks.

[0035] In the embodiment, three installation notches 12 are arranged on the outer periphery of the face cover 1, so as to facilitate the cooperation with the three protrusions 21 on the outer periphery of the light-blocking piece 2, so that the protrusions 21 extend into the installation notches 12 after the assembly of the face cover 1 and the light-blocking piece 2, and a plurality of clamping blocks 13 are further arranged on the outer periphery of the face cover 1, the clamping blocks 13 are plastic blocks, have a certain deformation effect, and the staff can make the assembly blocks 22 on the outer periphery of the light-blocking piece 2 extend into the through holes 131 of the clamping blocks 13 by moving the clamping blocks 13, so as to facilitate the rapid installation between the face cover 1 and the light-blocking piece 2.

[0036] In order to better understand the present application, the following will be combined Figures 1 to 8The technical scheme of the utility model is explained in detail as follows: the PCBA board 3 in the application is provided with a light character display module and a gear shifting signal processing module, adopts an integrated mounting structure, can simplify the device structure, reduce the number of parts, thus can reduce the production cost and failure rate, improve the integration and reliability of the whole device, and the first Hall inductor 311, the second Hall inductor 312 and the third Hall inductor 313 are arranged at intervals of 30° below the PCBA board 3, and the first magnet 411, the second magnet 412, the third magnet 413 and the fourth magnet 414 are arranged at intervals of 90° in the circumferential direction on the fixing member 4, can be combined to realize 12 gear shifting, have higher gear resolution and switching accuracy, can meet the needs of gear subdivision of various vehicle transmission systems, improve the adaptability and universality of the gear shifting device; compared with the grating sensor used by the conventional unlimited rotation gear shifter, the Hall sensor of the application is not significantly affected by environmental factors such as dust, humidity and temperature change, has stronger stability and durability, effectively prolongs the service life of the gear shifting device, at the same time improves the safety of gear shifting operation, reduces the safety hidden danger caused by sensor failure, provides the driver with more reliable driving experience, uses the Hall sensor to replace the conventional grating sensor, has the characteristics of stable work in different environments such as dust, humidity and temperature change, and has the design characteristics of no mechanical contact part to prolong the service life of the gear shifting device.

[0037] The specific embodiment of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A shift feel device characterized by comprising: The utility model relates to a kind of light curtain, including: Face cover, which is provided with a light-transmitting part; A light-blocking part is detachably connected to the lower end of the face cover; A PCBA board is arranged below the light-blocking part, and an inductive part is arranged at the lower end of the PCBA board, which includes a first Hall inductor, a second Hall inductor and a third Hall inductor, and the first Hall inductor, the second Hall inductor and the third Hall inductor are distributed at 30° below the PCBA board; A fixing part is installed at the lower end of the PCBA board, and a magnet part is arranged between the fixing part and the PCBA board, which includes a first magnet, a second magnet, a third magnet and a fourth magnet, wherein the first magnet, the second magnet, the third magnet and the fourth magnet are distributed at 90° on the fixing part.

2. A shift sensing device according to claim 1, characterized in that: The light-transmitting part includes a first light-transmitting mark, a second light-transmitting mark and a third light-transmitting mark, which are arranged in a triangular shape at the upper end of the face cover.

3. A shift sensing device according to claim 1, wherein: A plurality of mounting notches are circumferentially formed at the lower end of the face cover, and a plurality of protrusions corresponding to the mounting notches are arranged on the light-blocking part.

4. A shift sensing device according to claim 1, wherein: A plurality of clamping blocks are circumferentially arranged on the outer periphery of the face cover, and a through hole is formed in each clamping block.

5. A shift sensing device according to claim 4, wherein: The clamping blocks are plastic blocks.

6. The gear shift sensing device according to claim 2, characterized in that: A plurality of light-transmitting holes corresponding to the first light-transmitting mark, the second light-transmitting mark and the third light-transmitting mark are arranged on the light-blocking part.

7. A shift sensing device according to claim 1, wherein: A light character display module and a gear shifting signal processing module are arranged on the PCBA board.

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