Automobile gear position signal structure and electronic gear shifter
The vehicle gear position signal structure addresses structural instability and noise in electronic shifters by using a stabilized gear shifting mechanism with elastic cantilevers and a cross universal joint, ensuring reliable and comfortable gear shifting.
Patent Information
- Application Number
- CN202010988766.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-09-18
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2040-09-18
AI Technical Summary
Existing electronic shifters in automobiles suffer from structural instability, gear shift sticking, and noise during operation, leading to potential safety issues and reduced driving comfort due to inaccurate gear signal transmission and large free clearance.
A vehicle gear position signal structure comprising a circuit board, rotating bracket, slider, sliding magnet, and rotating magnet, with elastic cantilevers and a herringbone-shaped rotating bracket, along with a cross universal joint structure and ball cage bushing, to stabilize gear shifting and reduce noise.
The solution ensures high reliability and stability in gear shifting operations, reducing noise and assembly gaps, thereby enhancing driving comfort and safety by maintaining consistent gear signal transmission.
Smart Images

Figure CN112096850B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic automobiles, and in particular to an automobile gear position signal structural component and an electronic gear shifter. Background Art
[0002] With the development of electrification, networking, intelligence and sharing in the automotive industry, electronic shifters have become the main force in the market. The realization and conversion of each gear of the electronic shifter mainly depends on the structure and function of the gear signal structural components.
[0003] When the driver operates the shift lever to shift gears, the shift lever drives the gear signal structure to trigger and convert each gear signal. The gear signal structure drives the change of the Hall magnet according to different positions to trigger the corresponding gear, and outputs the position signal corresponding to each gear through CAN communication changes. The realization of each gear signal of the electronic shifter mainly comes from the gear signal structure. To ensure the accuracy of the signal, the gear signal structure is not allowed to be unstable, the gear shift is stuck, and the structural reliability fails during the shift process. If the above phenomenon occurs, the whole vehicle will be unable to drive.
[0004] When using the existing gear shifter, when the vehicle is not started, the driver can clearly feel the shaking and friction sound inside the gear shifter by gently shaking the gear shifter with his hand; when starting the vehicle, because the free clearance is too large, the gear shift signal may be triggered by mistake without fully executing the gear shift operation, thereby causing a safety accident of the entire vehicle shifting; and during the gear shifting process, the driver can clearly feel the gear position jumping and sticking, affecting the driving comfort of the entire vehicle. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides an automobile gear position signal structure and an electronic gear shifter.
[0006] The technical solution adopted by the present invention is:
[0007] A vehicle gear position signal structural component comprises a circuit board, a rotating bracket, a slider, a sliding magnet, a fixed bracket and a rotating magnet; the fixed bracket is fixed to the circuit board by screws, the rotating magnet is rotatably arranged at the lower end of the fixed bracket, and the slider is slidably arranged on the fixed bracket up and down; the sliding magnet is fixed to the slider and slides up and down along the fixed bracket together with the slider; one end of the rotating bracket is connected to the rotating magnet for driving the rotating magnet to rotate, and the other end is slidably connected to a limiting slide groove at the upper end of the slider, and the third end of the rotating bracket is rotatably connected to a shift lever; a rotating Hall sensor and a switch Hall sensor are arranged on the circuit board, the rotating Hall sensor cooperates with the rotating magnet to sense magnetic field deflection and output a gear position signal, and the switch Hall sensor is used to detect the position of the sliding magnet, so as to control the circuit board to remain on the automatic gear circuit.
[0008] Furthermore, two vertical slide rails are provided on the upper end of the outer surface of the fixed bracket; elastic cantilevers are provided on both sides of the slider; the upper end of the elastic cantilever is connected to the slider body, and the lower end thereof is a free end; a sliding support foot is provided below the elastic cantilever; the slider can be slidably inserted on the two vertical slide rails of the fixed bracket through the elastic cantilever and the sliding support foot, and the elastic cantilever is in pre-pressed contact with the vertical slide rails.
[0009] Furthermore, the elastic cantilever and the slider body are integrally injection molded.
[0010] Furthermore, the rotating bracket is in a herringbone shape, and the head of the herringbone shape is provided with a ball head structure. One side of the herringbone shape is provided with a clamping arm, and the clamping arm is provided with a clamping groove with an opening facing downward; the other side is provided with a clamping arm, and the inner side surfaces of the bottom ends of the two clamping arms are provided with cylindrical protrusions, and the two cylindrical protrusions are opposite to each other; the rotating bracket can be rotatably clamped on the cylindrical protrusion at the upper end of the rotating magnet through its clamping groove, and the two cylindrical protrusions of the clamping arm can be rotatably inserted into the two circular holes of the boss at the lower end of the shift lever, and the ball head structure of the rotating bracket can be slidably inserted in the limited sliding groove of the slider.
[0011] An electronic shifter, comprising a housing, a shift lever assembly, a toothed slot, and any one of the above-mentioned automotive gear position signal structural components;
[0012] The housing comprises an upper housing and a lower housing, wherein the upper housing and the lower housing enclose a space for accommodating the shift lever assembly, the toothed groove and the shift signal structure assembly;
[0013] The tooth-shaped groove is installed at the bottom of the lower housing, and the gear shifting teeth are arranged in the tooth-shaped groove;
[0014] The shift lever assembly comprises a shift lever, the upper end of which extends from the upper housing for connecting with the handle, and the lower end of which extends from the lower housing for sliding contact with the shift teeth in the tooth groove;
[0015] The gear shift signal structure assembly is installed on the side walls of the upper shell and the lower shell, and is used to output gear position signals to enable the gear shift lever to switch between different gear positions.
[0016] Furthermore, an upper opening is provided at the top of the upper shell body, and positioning grooves are provided on both sides of the upper opening; the shift lever assembly includes a shift lever, a ball cage bushing, a gear pin and a gear spring; a spherical protrusion is provided at the middle part of the shift lever, and positioning columns are radially provided at both ends of the spherical protrusion, and the two positioning columns and the spherical protrusion form a cross universal joint structure; a stepped blind hole is axially provided at the lower end of the shift lever; the gear pin and the gear spring are arranged in the stepped blind hole, the upper end of the gear spring abuts against the bottom surface of the small hole of the stepped blind hole, and the lower end abuts against the gear pin; the ball cage bushing is sleeved on the spherical protrusion, the spherical protrusion and the ball cage bushing are arranged in the upper opening of the upper shell body, and the two positioning columns of the spherical protrusion extend from the opening of the ball cage bushing and are inserted into the positioning groove of the upper shell body; the ball cage bushing is elastically deformable to connect the shift lever and the upper shell body, so as to eliminate the free gap between the shift lever and the upper shell body.
[0017] Furthermore, the ball cage bushing is provided with a spherical inner wall adapted to the spherical protrusion of the shift lever, a circular outer wall is provided on the outer side of the spherical inner wall, and the top and middle part of the spherical inner wall are connected to the circular outer wall through a plurality of connecting ribs; a plurality of lower openings are evenly provided below the center part of the spherical inner wall, and the lower openings are used to make the spherical inner wall produce elastic deformation; two groups of elastic buckle assemblies are symmetrically provided on both sides of the ball cage bushing, and the elastic buckle assemblies include a lower elastic buckle arranged at the lower end of the outer surface of the spherical inner wall and a lower elastic buckle arranged at the circular Two upper elastic buckles at the upper end of the outer surface of the outer wall, and a lower elastic buckle extending from the lower opening of the circular outer wall and pre-pressed and connected with the inner wall of the upper opening of the upper shell body. The two upper elastic buckles are respectively located on the left and right sides of the lower elastic buckle, and the upper elastic buckle is pre-pressed and connected with the inner wall of the upper opening of the upper shell body; the upper elastic buckle and the lower elastic buckle both include a clamping arm and a clamping portion connected to the lower end of the clamping arm, the upper end of the clamping arm is connected to the spherical inner wall or the circular outer wall, and the lower end is a free end, and the clamping portion is arranged on the free end.
[0018] Furthermore, the shift pin is in the shape of a stepped cylinder which is larger in the middle and smaller at both ends. A plurality of elastic sheets are provided on the surface of the middle large-diameter cylindrical portion, and an extrusion protrusion is provided on the outer side of the elastic sheet. The end of the small-diameter cylindrical portion at the tail of the shift pin is provided with a deformable claw portion, and the elastic sheet and the deformable claw portion are used to elastically connect the shift pin and the shift lever.
[0019] Furthermore, the elastic sheet and the claw portion are integrally formed with the shift pin body.
[0020] Furthermore, the end of the small diameter cylindrical portion of the shift pin head is configured as a spherical structure, so the spherical structure is slidably connected to the shift teeth of the toothed groove.
[0021] The beneficial effects of the present invention are as follows: the automobile gear signal structural component of the present invention has a simple structure, a high degree of reliability, a small number of matching sub-components, low requirements for assembly of each component, a small cumulative error caused by assembly, and a high degree of stability and consistency in gear shifting operation. The cross universal joint structure design of the gear shift lever cooperates with the ball cage bushing, and the ball cage bushing is tightened after press-fitting to eliminate the assembly gap. The design has high transmission efficiency, simple and reliable design, and a large transmission angle, which effectively avoids the instability and abnormal noise of the gear signal structure due to the large matching gap during the gear shifting process, resulting in functional failure. In addition, the slider structure in the gear signal component adopts an elastic structure, which maintains stability during sliding and effectively suppresses sliding sound, thereby improving the noise generated during the movement of the mechanism, thereby ensuring the comfort of the whole vehicle gear shifting and the stability and reliability of the signal. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of the gear position signal structural component of the present invention.
[0023] Figure 2 It is a schematic diagram of the installation structure of the gear position signal structural component of the present invention.
[0024] Figure 3 It is a three-dimensional structural schematic diagram of a fixing bracket of a gear position signal structural component of the present invention.
[0025] Figure 4 It is a three-dimensional structural schematic diagram of a slider of a gear position signal structural component of the present invention.
[0026] Figure 5 It is a three-dimensional structural schematic diagram of a rotating magnet of a gear position signal structural component of the present invention.
[0027] Figure 6 It is a three-dimensional structural schematic diagram of a rotating bracket of a gear position signal structural member of the present invention.
[0028] Figure 7 It is a schematic diagram of the exploded structure of the electronic shifter of the present invention.
[0029] Figure 8 It is a schematic diagram of the installation structure of the electronic shifter of the present invention.
[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the ball cage bushing of the present invention.
[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the shift pin of the present invention. DETAILED DESCRIPTION
[0032] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with the embodiments, but the content of the present invention is not limited to the following embodiments. Implementation
[0033] See also Figure 1 The present embodiment provides a vehicle gear position signal structure, which includes a circuit board 8, a rotating bracket 9, a slider 10, a sliding magnet, a fixed bracket 11 and a rotating magnet 12.
[0034] A rotating Hall sensor and a switch Hall sensor are provided on the circuit board 8. The rotating Hall sensor cooperates with the rotating magnet 12. When the rotating magnet 12 rotates, the rotating Hall sensor can sense the magnetic field deflection, thereby outputting a gear position signal. The switch Hall sensor is used to detect the position of the sliding magnet, thereby controlling the circuit board 8 to remain in the automatic gear circuit.
[0035] See also Figure 3 and Figure 1 , ears 113 are provided on both sides of the fixing bracket 11, and threaded holes are provided on the ears 113. The fixing bracket 11 is installed on the outer side of the circuit board 8 by self-tapping screws passing through the threaded holes of the ears. Two vertical slide rails 111 are provided at the upper end of the outer side surface of the fixing bracket 11, and a magnet mounting hole 112 is provided at the lower end of the outer side surface.
[0036] See also Figure 4 and Figure 1 The upper side of the slider 10 is provided with a limited slide groove 101, which is a through groove with a circular cross section and a width of the through groove opening smaller than the radius of the circle. A square through hole 104 is provided at the center of the slider 10, and the square through hole 104 is used to embed the sliding magnet. Elastic cantilevers 102 are provided on both sides of the slider 10, and the upper end of the elastic cantilever 102 is connected to the slider body, and the lower end is a free end. The elastic cantilever 102 is integrally injection molded with the slider body. Sliding legs 103 are provided below the elastic cantilever 102, and the sliding legs 103 are formed by protruding outwards from both sides of the slider. The slider 10 can be slidably inserted on the two vertical slide rails 111 of the fixed bracket 11 through the elastic cantilever 102 and the sliding legs 103. The elastic cantilever 102 is in pre-pressed contact with the vertical slide rails 111, so as to maintain the stability of the slider 10 during the sliding process and effectively suppress the noise generated by the sliding.
[0037] See also Figure 5 and Figure 1 The left side of the lower end of the rotating magnet 12 is provided with a first cylindrical protrusion 122, and the right side of the upper end of the rotating magnet 12 is provided with a second cylindrical protrusion 122. The rotating magnet 12 is rotatably arranged in the magnet mounting hole 112 of the fixed bracket 11 through the first cylindrical protrusion 122.
[0038] See also Figure 6 and Figure 2The rotating bracket 9 is in a herringbone shape, and a ball head structure 93 is provided at the head of the herringbone shape. A clamping arm 91 is provided on one side of the herringbone shape, and a clamping arm 91 is provided with a clamping groove 911; the other side is provided with a clamping arm 92, and a cylindrical protrusion 921 is provided at the bottom end of the two clamping arms 92. The two cylindrical protrusions 921 are opposite to each other and are formed by the inner side surfaces of the two clamping arms 92 protruding outward. The rotating bracket 9 can be rotatably clamped on the second cylindrical protrusion 121 of the rotating magnet 12 through its clamping groove 911, and the two cylindrical protrusions 921 of the clamping arm 92 can be rotatably inserted into the two round holes of the boss at the lower end of the shift lever 1, and the ball head structure 93 of the rotating bracket 9 can be slidably inserted into the limited sliding groove 101 of the slider 10.
[0039] When the driver shifts gears in the forward and backward directions, he shakes the shift lever 1 forward and backward, and the shift lever 1 drives the ball head 93 of the rotating bracket 9 to slide left and right in the limiting slide groove of the slider 10. At the same time, the slider 10 slides up and down in the two slide rails 111 of the fixed bracket 11, so that the clamping arm 91 of the rotating bracket 9 moves the rotating magnet 12, and the rotating magnet 12 rotates around the axis of the magnet mounting hole 1121. The shift lever switches between the +, M, and - manual gears, and the rotating Hall sensor senses the magnetic field deflection and outputs a gear position signal.
[0040] When the driver switches to the automatic gear, he shakes the shift lever back and forth, and the shift lever drives the rotating bracket 9 to swing back and forth. A rotating Hall sensor is provided on the circuit board 8, and the rotating Hall sensor can sense the deflection of the magnetic field, thereby outputting a gear signal to switch the shift lever among the R, N, P, and D gears; when the driver switches to the manual mode to the right perpendicular to the front and rear directions, the rotating bracket 9 drives the slider 10 to slide up and down in the two slide rails 111 of the fixed bracket 11, and the switch Hall sensor senses the sliding magnet, thereby keeping the control circuit board 8 on the manual gear circuit, so that the shift lever switches among the -, M, and + gears.
[0041] The present invention only needs to operate the shift lever, and the shift lever and the rotating bracket 9 can realize the rotation of the rotating magnet 12 and the sliding of the slider 10, thereby realizing the free switching of the manual gear and the automatic gear. The elastic cantilever buckle design on both sides of the slider of the present invention can effectively reduce the noise generated by the vibration impact caused by the rapid shifting. Compared with the tolerance clearance matching in the traditional assembly structure, it reduces the manufacturing difficulty and avoids sliding jamming, thereby ensuring the normal function of the product. Example
[0042] See also Figure 7 and Figure 8 This embodiment provides an automotive electronic shifter, including a housing assembly, a shift lever assembly, a toothed groove and a shift signal structure. The structure of the shift signal structure is the same as that of embodiment 1, and its structure is not repeated.
[0043] The housing assembly includes an upper housing 3 and a lower housing 6. An upper opening is provided at the top of the upper housing 3, and the inner side wall of the upper opening protrudes axially from the top surface of the housing to form a circular protrusion, and two bayonet holes are provided on the circular protrusion, and a positioning groove is provided on the side wall of the housing. A screw hole is provided at the bottom of the upper housing 3. A positioning column is provided at the bottom of the lower housing 6, and a positioning hole is provided on the left inner side wall of the lower housing 6, and a limit groove is provided on the front and rear inner sides. The upper housing 3 and the lower housing 6 are connected to form a housing by self-tapping screws, and the upper housing 3 and the lower housing 6 surround a space for accommodating the shift lever assembly, the toothed groove 7, the circuit board 8 and the shift signal structure assembly.
[0044] The outer surfaces of the two opposite sides of the tooth-shaped groove 7 are provided with deformable buckles, the bottom is provided with a positioning hole 72, and the bottom surface of the groove is provided with a shifting tooth. The tooth-shaped groove 7 is installed in the lower shell 6, the bottom positioning hole of the tooth-shaped groove 7 is matched and connected with the shaft hole of the bottom positioning column 61 of the lower shell 6, and the deformable buckles on both sides of the tooth-shaped groove 7 are clamped with the two limit grooves of the lower shell 6.
[0045] The shift lever assembly includes a shift lever 1, a ball cage bushing 2, a shift pin 4 and a shift spring 5. A spherical protrusion is provided in the middle of the shift lever 1, and the upper and lower ends of the spherical protrusion are cylindrical parts. Positioning cylinders are provided at the left and right ends of the spherical protrusion, and the spherical protrusion and the positioning cylinders at both ends form a cross-axis universal joint structure. A stepped blind hole is axially opened in the lower cylindrical part, and the stepped blind hole is composed of a small diameter circular hole, a medium diameter circular hole and a large diameter circular hole connected in sequence. The lower end of the large diameter circular hole passes through the bottom of the lower cylindrical part, and a shoulder is provided between adjacent variable diameter circular holes. The lower end of the large diameter circular hole passes through the bottom of the lower cylindrical part. A groove is provided at the lower end of the outer wall of the lower cylindrical part, and a rubber ring 13 is installed in the groove.
[0046] See also Fig. 9The cage bushing 2 is provided with a spherical inner wall 21 adapted to the spherical protrusion of the shift lever 1, and a circular outer wall is provided outside the spherical inner wall. The top and middle part of the spherical inner wall 21 are connected to the circular outer wall 22 through a connecting rib 23. There are a number of lower openings evenly arranged below the center of the spherical inner wall 21, and the lower openings can cause the spherical inner wall 21 to deform. The top of the circular outer wall 22 is connected through a circular ring portion, and the outer circumference of the circular ring portion protrudes radially outward to form a blocking portion 222. Two sets of elastic buckle assemblies are symmetrically arranged on both sides of the cage bushing 2. The elastic buckle assemblies include a lower elastic buckle 24 arranged at the lower end of the outer surface of the spherical inner wall 21 and two upper elastic buckles 26 arranged at the upper end of the outer surface of the circular outer wall 22. The lower elastic buckle 24 extends from the lower opening of the circular outer wall 22 and is pre-pressed and connected with the inner wall of the upper opening of the upper shell 3. The lower elastic buckle 24 is used to squeeze the spherical inner wall 21 so that the lower opening of the spherical inner wall is closed and tightly embraces the spherical protrusion of the shift lever. The two upper elastic buckles 26 are respectively located on the left and right sides of the lower elastic buckle 24. The upper elastic buckle 26 is pre-pressed and connected with the inner wall of the upper opening of the upper shell 3. The upper elastic buckle 26 is used for extrusion deformation when the shift lever 4 is shaken. The upper elastic buckle 26 and the lower elastic buckle 24 both include a clamping arm and a clamping portion connected to the lower end of the clamping arm. The upper end of the clamping arm is connected to the spherical inner wall 21 or the circular outer wall 22, and the lower end is a free end, which is connected to the clamping portion. In order to facilitate installation, the clamping portions of the upper elastic buckle 26 and the lower elastic buckle 24 are set as inclined surfaces that are inclined upward and outward. The upper end outer surface of the spherical inner wall 21 of the ball cage bushing 2 is provided with two positioning buckles 25 that are adapted to the bayonet of the upper opening of the upper shell 3, and the positioning buckles 25 protrude from the lower opening of the circular outer wall 22. The positioning buckles 25 and the two sets of elastic buckle components are cross-arranged.
[0047] See also Fig.10 The shift pin 4 is in the shape of a stepped cylinder with a large center and small ends. The outer diameter of the middle large diameter cylindrical portion 41 is adapted to the large diameter circular hole of the stepped blind hole of the shift lever 1. The surface of the large diameter cylindrical portion 41 is provided with a plurality of elastic sheets 411. The outer side of the elastic sheet 411 is provided with an extrusion protrusion. The elastic sheet can be integrally formed with the body of the shift pin 4, that is, the elastic sheet 411 is cut and formed by the outer wall of the shift pin. The outer diameters of the small diameter cylindrical portions at both ends of the shift pin 4 are adapted to the small diameter circular hole of the stepped blind hole of the shift lever 1. The end of the small diameter cylindrical portion at the head of the shift pin 4 is provided with a spherical structure 42. The end of the small diameter cylindrical portion at the tail of the shift pin 4 is provided with a deformable claw portion 43. The deformable claw portion 43 is formed by cutting the small diameter cylindrical portion, for example, a circular blind hole is opened in the axial center of the small diameter cylindrical portion, and side openings are evenly opened on the side walls of the circular blind hole. The deformable claw portion 43 is formed between the two side openings.
[0048] The shift spring 5 is a cylindrical helical spring.
[0049] See also Figure 8The ball cage bushing 2 is sleeved on the spherical protrusion of the shift lever 1 by opening the lower opening of the lower end of its spherical inner wall 21, and the lower opening of the outer wall of the ball cage bushing 2 is tightened to hold the spherical protrusion of the shift lever 1. The blocking portion 222 of the ball cage bushing 2 is stopped at the top of the upper shell 3, and the two positioning buckles 25 of the ball cage bushing 2 are engaged in the two bayonet holes of the upper shell 3 to limit the axial position of the ball cage bushing. The upper elastic buckle 26 and the lower elastic buckle 24 of the ball cage bushing 2 are tightly abutted against the inner side wall of the upper opening of the upper shell; the positioning columns at both ends of the spherical protrusion of the shift lever 1 pass through the ball cage bushing 2 and are inserted into the positioning groove of the upper shell 3; the spherical structure 42 of the head of the shift pin 4 slides with the shift tooth shape on the bottom surface of the tooth groove 7. The shift spring 5 is sleeved on the small diameter cylindrical part at the tail of the shift pin 4. The shift pin 4 and the shift spring 5 are installed in the shift lever 1. The three deformable claws 43 at the tail of the shift pin 4 extend into the small diameter circular hole of the stepped blind hole of the shift lever 1. The elastic sheet 411 on the outer wall of the shift pin tightly abuts against the inner wall of the large diameter circular hole of the stepped blind hole of the shift lever 1; the upper end of the shift spring 5 abuts against the shoulder of the medium diameter circular hole of the shift lever 1, and the lower end thereof abuts against the shift pin 4.
[0050] When the driver shifts gears, he shakes the shift lever 1, and the upper shell 3 squeezes the upper elastic buckle 26 of the ball cage bushing 2, which deforms and squeezes the lower elastic buckle 24 of the ball cage bushing 2. The lower elastic buckle 24 transmits the squeezing force to the spherical inner wall 21 through the connecting rib 23, so that the lower opening at the lower end of the spherical inner wall 21 tightens and hugs the spherical protrusion of the shift lever 1. The design of the deformable ball cage bushing can effectively reduce the free gap between the upper shell 3 and the shift lever 1, effectively avoiding the signal triggering anomaly caused by the gap and the noise caused by the movement of the mechanism, improving the smoothness of the shift, and thus obtaining good operating comfort. The core rotating mechanism of the shift lever 1 adopts a cross-axis universal joint structure, so that the shift lever 1 cannot produce self-rotation during the shaking process, ensuring the stability of the mechanism and improving the comfort of the shift operation.
[0051] The deformable elastic sheet design of the shift pin can effectively reduce the assembly gap and friction between the shift pin and the shift lever, thereby improving the safety of the vehicle's gear shifting; the spherical structure design of the shift pin head allows the shift pin to contact the spherical surface of the toothed groove, effectively reducing the jumpiness of the gear shifting process, reducing the noise generated during the gear shifting process, and ensuring gear shifting comfort.
[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A vehicle gear position signal structure, It is characterized in that It comprises a circuit board, a rotating bracket, a slider, a sliding magnet, a fixed bracket and a rotating magnet; the fixed bracket is fixed to the circuit board by screws, the rotating magnet is rotatably arranged at the lower end of the fixed bracket, and the slider is slidably arranged on the fixed bracket; the sliding magnet is fixed to the slider and slides up and down along the fixed bracket together with the slider; one end of the rotating bracket is connected to the rotating magnet for driving the rotating magnet to rotate, and the other end is slidably connected to the limiting sliding groove at the upper end of the slider, and the third end of the rotating bracket is rotatably connected to the shift lever; a rotating Hall sensor and a switch Hall sensor are arranged on the circuit board, the rotating Hall sensor cooperates with the rotating magnet to sense the deflection of the magnetic field and output a gear position signal, and the switch Hall sensor is used to detect the position of the sliding magnet, so as to control the circuit board to remain on the automatic gear circuit; Two vertical slide rails are provided at the upper end of the outer surface of the fixed bracket; elastic cantilevers are provided on both sides of the slider; the upper end of the elastic cantilever is connected to the slider body, and the lower end thereof is a free end; a sliding foot is provided below the elastic cantilever; the slider can be slidably inserted on the two vertical slide rails of the fixed bracket through the elastic cantilever and the sliding foot, and the elastic cantilever is in pre-pressed contact with the vertical slide rails; The rotating bracket is in a herringbone shape, and the head of the herringbone shape is provided with a ball head structure. One side of the herringbone shape is provided with a clamping arm, and the clamping arm is provided with a clamping groove with an opening facing downward; the other side is provided with a clamping arm, and the inner side surfaces of the bottom ends of the two clamping arms are provided with cylindrical protrusions, and the two cylindrical protrusions are opposite to each other; the rotating bracket can be rotatably clamped on the cylindrical protrusion at the upper end of the rotating magnet through its clamping groove, and the two cylindrical protrusions of the clamping arm can be rotatably inserted into the two circular holes of the boss at the lower end of the shift lever, and the ball head structure of the rotating bracket can be slidably inserted in the limited sliding groove of the slider.
2. The automobile gear position signal structural component according to claim 1, It is characterized in that The elastic cantilever and the slider body are integrally injection-molded.
3. An electronic gear shifter, It is characterized in that It comprises a housing, a shift lever assembly, a toothed groove, and the automotive gear position signal structural member as claimed in claim 1 or 2; The housing comprises an upper housing and a lower housing, and the upper housing and the lower housing enclose a space for accommodating a shift lever assembly, a toothed groove and a vehicle gear position signal structural component; The tooth-shaped groove is installed at the bottom of the lower housing, and the gear shifting teeth are arranged in the tooth-shaped groove; The shift lever assembly comprises a shift lever, the upper end of which extends from the upper housing for connecting with the handle, and the lower end of which extends from the lower housing for sliding contact with the shift teeth in the tooth groove; The automobile gear position signal structure is installed on the side walls of the upper shell and the lower shell, and is used to output gear position signals to switch the gear lever between different gear positions.
4. The electronic shifter according to claim 3, It is characterized in that An upper opening is provided on the top of the upper shell body, and positioning grooves are provided on both sides of the upper opening; the shift lever assembly includes a shift lever, a ball cage bushing, a gear pin and a gear spring; a spherical protrusion is provided in the middle part of the shift lever, and positioning columns are radially provided at both ends of the spherical protrusion, and the two positioning columns and the spherical protrusion form a cross universal joint structure; a stepped blind hole is axially provided at the lower end of the shift lever; the gear pin and the gear spring are arranged in the stepped blind hole, the upper end of the gear spring abuts against the bottom surface of the small hole of the stepped blind hole, and the lower end abuts against the gear pin; the ball cage bushing is sleeved on the spherical protrusion, the spherical protrusion and the ball cage bushing are arranged in the upper opening of the upper shell body, and the two positioning columns of the spherical protrusion extend from the opening of the ball cage bushing and are inserted into the positioning groove of the upper shell body; the ball cage bushing is elastically deformable to connect the shift lever and the upper shell body, and is used to eliminate the free gap between the shift lever and the upper shell body.
5. The electronic shifter according to claim 4, It is characterized in that The ball cage bushing is provided with a spherical inner wall adapted to the spherical protrusion of the shift lever, and a circular outer wall is provided on the outer side of the spherical inner wall, and the top and middle part of the spherical inner wall are connected to the circular outer wall by a plurality of connecting ribs; a plurality of lower openings are evenly provided below the central part of the spherical inner wall, and the lower openings are used to make the spherical inner wall produce elastic deformation; two groups of elastic buckle assemblies are symmetrically provided on both sides of the ball cage bushing, and the elastic buckle assemblies include a lower elastic buckle arranged at the lower end of the outer surface of the spherical inner wall and two upper elastic buckles arranged at the upper end of the outer surface of the circular outer wall, the lower elastic buckle extends from the lower opening of the circular outer wall and is pre-pressed and connected with the inner wall of the upper opening of the upper shell body, and the two upper elastic buckles are respectively located on the left and right sides of the lower elastic buckle, and the upper elastic buckle is pre-pressed and connected with the inner wall of the upper opening of the upper shell body; the upper elastic buckle and the lower elastic buckle both include a clamping arm and a clamping part connected to the lower end of the clamping arm, the upper end of the clamping arm is connected to the spherical inner wall or the circular outer wall, and its lower end is a free end, and the clamping part is arranged on the free end.
6. The electronic shifter according to claim 4, It is characterized in that The gear pin is in the shape of a stepped cylinder which is larger in the middle and smaller at both ends. A number of elastic sheets are provided on the surface of the middle large-diameter cylindrical portion, and an extrusion protrusion is provided on the outer side of the elastic sheet. The end of the small-diameter cylindrical portion at the tail of the gear pin is provided with a deformable claw portion. The elastic sheet and the deformable claw portion are used to elastically connect the gear pin and the shift lever.
7. The electronic shifter according to claim 6, It is characterized in that The elastic sheet and the claw portion are integrally formed with the shift pin body.
8. The electronic shifter according to claim 6, It is characterized in that The end of the small diameter cylindrical portion of the shift pin head is arranged as a spherical structure, so the spherical structure is slidably connected with the shifting teeth of the toothed groove.
Citation Information
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