Electronic shifter

Abstract

The invention provides an electronic shifter, comprising a shift bracket, a shift lever assembly, a shift spring, a PCB board assembly, a shift block and a buffer pad, wherein the PCB board assembly is arranged on the shift bracket; the shift lever assembly comprises a shift lever, a sliding rod and a roller; the shift lever is rotatably connected to the shift bracket, and the shift block and the buffer pad are fixedly connected to the shift bracket; the sliding rod is slidably arranged on the shift lever, and the shift spring is arranged between the shift lever and the sliding rod, and causes the lower end of the sliding rod to press against the buffer pad; the roller is rotatably connected to the sliding rod and rolls on the shift block. When the shift lever assembly rotates, the sliding rod slides on the buffer pad to generate a shift action sound, and the roller rolls on the shift block to generate a shift feeling, thereby realizing separate control matching of the shift feeling and the shift action sound, facilitating the reduction of the shift action sound to a suitable size, having reliable performance, reducing production costs, and avoiding the problem of difficulty in matching the shift feeling and the shift action sound when the shift feeling and the shift action sound are simultaneously achieved by simply sliding the sliding rod on the shift block.

Description

Technical Field

[0001] The invention belongs to the field of gear shifting, and in particular relates to an electronic gear shifter. Background Art

[0002] At present, the inherent shift feel and shift sound of most electronic shifters are matched through the sliding motion matching relationship of two components (usually when the shift feel is good, the shift sound is unacceptable, or when the shift sound is good, the shift feel is poor). Often after the product comes out, it is necessary to make multiple and repeated adjustments to the matching dimensions and material properties of the corresponding components to meet the performance requirements of the development. Not only is the cost high, but the final matching result can only reach a compromise acceptance state.

[0003] At present, most electronic shifters meet the shifting requirements through sliding friction movement, and the shift tooth plate assembly and the bracket are rigidly connected. The shifting action noise generated at this time, especially the shifting rebound noise, is very loud, which has a great impact on the development performance requirements for reducing shifting noise.

[0004] At present, most electronic shifters used in the automotive field have a PCB board assembly arranged on one side of the shift lever assembly (either the left or the right side), which greatly reduces the theoretical possibility of reducing the lateral size of the shifter.

[0005] At present, most of the internal components of electronic shifters are connected by threaded connection, which is not conducive to improving mass production efficiency. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an electronic gear shifter to solve the problems of the difficulty in matching the gear shift action sound and the gear shift feeling and the high cost of the existing solution.

[0007] To solve the above technical problems, an embodiment of the present invention provides an electronic shifter, comprising a shift bracket, a shift lever assembly, a shift spring, a PCB assembly, a shift block and a buffer pad, wherein the PCB assembly is arranged on the shift bracket and is used to send a shift signal to a controller according to the position of the shift lever assembly;

[0008] The shift lever assembly comprises a shift lever, a slide bar and a roller;

[0009] The shift lever is rotatably connected to the shift bracket, and the shift block and the buffer pad are fixedly connected to the shift bracket;

[0010] The slide bar is slidably mounted on the shift rod, and the shift spring is disposed between the shift rod and the slide bar, and forces the lower end of the slide bar to press against the buffer pad;

[0011] The roller is rotatably connected to the slide bar and rolls on the stop block.

[0012] Optionally, a receiving cavity is provided in the shift bracket, and the PCB board assembly, the slide rod, the roller, the shift spring, the shift block and the buffer pad are located in the receiving cavity;

[0013] A shift avoidance groove is provided on the top of the shift bracket, the lower end of the shift rod is located in the accommodating cavity, and the upper end passes through the shift avoidance groove and extends out of the shift bracket;

[0014] The shift lever is provided with a PCB board component avoidance groove, the PCB board component avoidance groove longitudinally passes through the shift lever, the PCB board component is inserted into the PCB board component avoidance groove and is fixed to the shift bracket.

[0015] Optionally, the shift lever assembly further includes a magnet disposed on the shift lever, and the PCB board assembly includes a PCB board and a sensor disposed on the PCB board and used to detect the position of the magnet.

[0016] Optionally, a limit avoidance position is provided on the shift bracket, and the PCB board assembly further includes a connector; the connector is provided on the lateral side of the PCB board, embedded in the limit avoidance position, and is used to connect to a controller.

[0017] Optionally, the shift bracket comprises an upper bracket and a lower bracket, the upper bracket is clamped with the lower bracket, and the upper bracket and the lower bracket are enclosed to form the accommodating cavity;

[0018] The shift lever is rotatably connected to the upper bracket, the PCB board assembly is fixedly connected to the upper bracket, and the shift block and the buffer pad are fixedly connected to the lower bracket.

[0019] Optionally, it further includes two connecting shafts, and the upper bracket is provided with first connecting shaft holes on opposite sides in the horizontal direction. The connecting shafts are embedded in the corresponding first connecting shaft holes one by one and connected to the shift lever; the PCB board assembly is located between the two connecting shafts.

[0020] Optionally, it also includes an anti-drop buckle, which includes two clamping parts, an elastic part and two hand-holding parts; one end of the elastic part is connected to one end of one of the clamping parts, and the other end is connected to one end of the other clamping part, and the two hand-holding parts are respectively arranged at one end of the two clamping parts close to the elastic part; the two clamping parts are clamped in the anti-drop buckle slot and hold the connecting shaft.

[0021] Optionally, an upper guide and limit structure is provided on the upper bracket, and the upper guide and limit structure is used to perform vertical installation guidance and horizontal limit on the PCB board assembly;

[0022] The lower bracket is provided with a vertical limiting structure, and the vertical limiting structure abuts against the bottom of the PCB board assembly.

[0023] Optionally, the buffer pad is integrally covered on the stop block, and a lower guide and limit structure is provided on the lower bracket, and the lower guide and limit structure is used for vertical installation guidance and horizontal limit of the buffer pad.

[0024] Optionally, the number of the lower guide limit structures is two, and the two lower guide limit structures are respectively arranged on the two longitudinal inner sides of the lower bracket, the buffer pad is vertically plugged into the lower guide limit structures, and the bottom is supported by the lower bracket.

[0025] Optionally, the shift lever is provided with a slide rod guide hole and a mounting guide column, the slide rod is provided with a stop portion, the slide rod is slidably arranged in the slide rod guide hole, the upper end of the gear spring is sleeved on the mounting guide column, and the lower end is sleeved on the upper end of the slide rod, and the stop portion is used to abut the lower end of the gear spring.

[0026] Optionally, it also includes a top cover, the shift lever is provided with an annular groove, the top side of the upper bracket is provided with a protrusion, the shift avoidance groove is provided on the protrusion, the upper end of the top cover is clamped in the annular groove, and the lower end extends beyond the peripheral side of the protrusion.

[0027] In the electronic shifter provided by the embodiment of the present invention, when the shift lever assembly rotates, the slide bar slides on the buffer pad to produce a shift action sound, and the roller rolls on the shift block to produce a shift feeling, thereby realizing separate control and matching of the shift feeling and the shift action sound, and facilitating the reduction of the shift action sound to an appropriate level. The performance is reliable, and the production cost is reduced, and the problem of difficulty in matching the shift feeling and the shift action sound when the shift feeling and the shift action sound are simultaneously achieved by simply sliding the slide bar on the shift block is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure of an electronic shifter provided in an embodiment of the present invention;

[0029] Figure 2 A cross-sectional view of an electronic shifter provided by an embodiment of the present invention;

[0030] Figure 3 The electronic shifter provided in the embodiment of the present invention is Figure 2 Cross-sectional view in the AA direction;

[0031] Figure 4 for Figure 1 A schematic diagram of the structure of the middle and upper bracket;

[0032] Figure 5 for Figure 1A schematic diagram of the structure of the middle upper bracket from another viewing angle;

[0033] Figure 6 for Figure 1 Structural schematic diagram of the middle and lower bracket;

[0034] Figure 7 for Figure 1 A schematic diagram of the structure of the middle shift lever;

[0035] Figure 8 for Figure 1 Schematic diagram of the structure of the middle connecting shaft and the anti-drop buckle;

[0036] Fig. 9 for Figure 8 Schematic diagram of the structure of the middle anti-drop buckle;

[0037] Fig.10 for Figure 3 A schematic diagram of the structure of the middle slide bar, roller shaft and roller;

[0038] Fig.11 A schematic structural diagram of the assembly state of the shift block and the buffer pad of the electronic shifter provided by an embodiment of the present invention;

[0039] Fig.12 A schematic structural diagram of a shift block and a buffer pad of an electronic shifter in a disassembled state provided by an embodiment of the present invention;

[0040] Fig.13 A schematic diagram of the assembly of an electronic shifter provided by an embodiment of the present invention;

[0041] Fig.14 An operating principle diagram of an electronic shifter provided by an embodiment of the present invention;

[0042] Fig.15 for Fig.14 Cross-sectional view in CC direction;

[0043] Fig.16 for Fig.14 Cross-sectional view in DD direction;

[0044] Fig.17 The electronic shifter provided in the embodiment of the present invention is Fig.16 Cross-sectional view in the EE direction;

[0045] Fig.18 A schematic structural diagram of a shift lever assembly, a PCB board assembly, a shift block and a buffer pad of an electronic shifter provided in an embodiment of the present invention;

[0046] Fig.19 for Fig.18 Schematic diagram of the structure from another perspective;

[0047] Fig. 20 A waterproof principle diagram of an electronic shifter provided by an embodiment of the present invention;

[0048] The reference numerals in the specification are as follows:

[0049] 1. gear shift bracket; 101. accommodating cavity; 102. gear shift avoidance groove;

[0050] 103, upper bracket; 1031, first connecting shaft hole; 1032, upper guide limiting structure; 1033, raised portion;

[0051] 104, lower bracket; 1041, vertical limiting structure; 1042, lower guide limiting structure; 1043, connecting part;

[0052] 105, clamping convex; 106, clamping hole; 107, guide groove; 108, limit avoidance position;

[0053] 2. Shift lever assembly;

[0054] 201, shift lever; 2011, PCB board assembly avoidance groove; 2012, annular slot; 2013, second connecting shaft hole; 2014, slide rod guide hole; 2015, installation guide column;

[0055] 202, slide bar; 2021, stopper; 203, roller; 204, roller shaft; 205, magnet;

[0056] 3. Shift spring;

[0057] 4. PCB board assembly; 401. PCB board; 402. non-contact angle sensor; 403. connector;

[0058] 5. Shift block; 501, steady-state trigger position; 502, N gear trigger position; 503, R gear trigger position; 504, D gear trigger position;

[0059] 6. Buffer pad; 601. Rebound limit buffer point; 602. Front limit buffer point; 603. Rear limit buffer point;

[0060] 7. Connecting shaft; 701. Anti-drop slot;

[0061] 8. Anti-drop buckle; 801. Clamping part; 802. Elastic part; 803. Hand-holding part;

[0062] 9. Top cover. DETAILED DESCRIPTION

[0063] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0064] like Figures 1 to 3 As shown, an electronic shifter provided by an embodiment of the present invention includes a shift bracket 1, a shift lever assembly 2, a shift spring 3, a PCB board assembly 4, a shift block 5 and a buffer pad 6, wherein the shift lever assembly 2 includes a shift lever 201, a slide bar 202 and a roller 203; wherein:

[0065] The PCB board assembly 4 is arranged on the shift bracket 1 and is used to send a gear position signal to the controller according to the position of the shift lever assembly 2;

[0066] The shift lever 201 is rotatably connected to the shift bracket 1, and the shift block 5 and the buffer pad 6 are fixedly connected to the shift bracket 1;

[0067] The slide bar 202 is slidably disposed on the shift rod 201, and the shift spring 3 is disposed between the shift rod 201 and the slide bar 202, and causes the lower end of the slide bar 202 to press against the buffer pad 6;

[0068] The roller 203 is rotatably connected to the slide bar 202 and rolls on the shift block 5 .

[0069] When in use, the PCB board assembly 4 is connected to the controller, and the controller is connected to the gearbox.

[0070] In the electronic shifter provided by the embodiment of the present invention, when the shift lever assembly 2 rotates, the slide bar 202 slides on the buffer pad 6 to produce a shifting action sound, and the roller 203 rolls on the shift block 5 to produce a shifting feeling, thereby realizing separate control and matching of the shifting feeling and the shifting action sound, and facilitating the reduction of the shifting action sound to an appropriate level. The performance is reliable, and the production cost is reduced, and the problem of difficulty in matching the shifting feeling and the shifting action sound when the shifting feeling and the shifting action sound are simultaneously achieved by simply sliding the slide bar 202 on the shift block 5 is avoided.

[0071] Specifically, Fig.11 , Fig.14 and Fig.15As shown, the roller 203 rolls on the guide curved surface of the shift block 5 to produce a shifting feeling. Preferably, the shift block 5 is sequentially provided with an R gear trigger position 503, an N gear trigger position 502, a steady-state trigger position 501, an N gear trigger position 502, and a D gear trigger position 504 along the longitudinal direction. When the roller 203 rolls along the shift block 5 to the R gear trigger position 503, the PCB board assembly 4 sends an R gear signal to the controller. When the roller 203 rolls along the shift block 5 to the N gear trigger position 502, the PCB board assembly 4 sends an N gear signal to the controller. When the roller 203 rolls along the shift block 5 to the D gear trigger position 504, the PCB board assembly 4 sends a D gear signal to the controller.

[0072] Specifically, Fig.11 , Fig.14 and Fig.16 As shown, the buffer pad 6 is provided with a plurality of limit buffer points, and the shifting sound is generated when the slide bar 202 hits the limit buffer point. Preferably, the limit buffer points are set to three, namely, the front limit limit buffer point 602, the rebound limit buffer point 601 and the rear limit limit buffer point 603, which are sequentially distributed in the longitudinal direction. Fig.16 In the middle, a represents the protruding height of the rebound limit buffer point 601. When the shift lever assembly 2 slides to the steady-state position, the slide bar 202 hits the rebound limit buffer point 601. When the shift lever assembly 2 slides to the R gear position, the slide bar 202 hits the front limit buffer point 602. When the shift lever assembly 2 slides to the D gear position, the slide bar 202 hits the rear limit buffer point 603, generating a louder shift action sound.

[0073] In one embodiment, if Figure 3 and Fig.10 As shown, two rollers 203 are provided, and the two rollers 203 are connected to the slide bar 202 via a roller shaft 204, which is beneficial to increase the shifting stability of the shift lever assembly 2 and prevent the shift lever assembly 2 from tilting left and right.

[0074] In one embodiment, if Figure 3 , Figure 7 and Fig.10 As shown, the shift lever 201 is provided with a slide bar guide hole 2014 and a mounting guide column 2015, the slide bar 202 is provided with a stopper 2021, the slide bar 202 is slidably mounted in the slide bar guide hole 2014, the upper end of the shift spring 3 is sleeved on the mounting guide column 2015, and the lower end is sleeved on the upper end of the slide bar 202, and the stopper 2021 is used to abut against the lower end of the shift spring 3. By limiting the shift spring 3 in this way, the shifting accuracy can be ensured.

[0075] In one embodiment, if Figures 1 to 4 , Figure 7 and Fig.13As shown, the shift bracket 1 is provided with a receiving cavity 101, and the PCB board assembly 4, the slide bar 202, the roller 203, the shift spring 3, the shift block 5 and the buffer pad 6 are located in the receiving cavity 101;

[0076] A shift avoidance groove 102 is provided on the top of the shift bracket 1, the lower end of the shift lever 201 is located in the accommodating cavity 101, and the upper end passes through the shift avoidance groove 102 and extends out of the shift bracket 1;

[0077] The shift lever 201 is provided with a PCB board component avoidance groove 2011, the PCB board component avoidance groove 2011 vertically penetrates the shift lever 201, and the PCB board component 4 is inserted into the PCB board component avoidance groove 2011 and fixed to the shift bracket 1. The PCB board component 4 is arranged in the shift bracket 1 and inserted into the PCB board component avoidance groove 2011 of the shift lever 201, which is conducive to the miniaturization of the horizontal size of the shifter; the PCB board component 4, the slide bar 202, the roller 203, the shift spring 3, the shift block 5 and the buffer pad 6 are located in the accommodating cavity 101, which can prevent impurities such as dust and water from entering and affecting the shifting function.

[0078] In one embodiment, if Fig.18 and Fig.19 As shown, the shift lever assembly 2 also includes a magnet 205 disposed on the shift lever 201, and the PCB board assembly 4 includes a PCB board 401 and a sensor disposed on the PCB board 401 and used to detect the position of the magnet 205. Since the PCB board assembly 4 is fixed to the shift bracket 1, the position of the sensor remains unchanged, and the magnet 205 moves with the movement of the shift lever 201. When shifting, the sensor identifies the position of the shift lever assembly 2 according to the magnetic field data of the magnet 205, and sends a gear position signal to the controller, and the controller controls the gearbox to switch gears according to the gear position signal. Preferably, the sensor is a non-contact angle sensor 402, which is conducive to simplifying the structure.

[0079] Specifically, the magnet 205 can be embedded in the shift lever 201 , and the non-contact angle sensor 402 can be a 3D angle Hall sensor back-welded on the PCB board 401 . The position detection of the magnet 205 can be realized by welding only one sensor on the PCB.

[0080] Preferably, if Fig.18 and Fig.19 As shown, the PCB board 401 is centrally arranged inside the shift lever 201, which better solves the limitation of the miniaturized design of the lateral size of the electronic shifter.

[0081] In one embodiment, if Figure 1 , Figure 4 and Fig.13As shown, the shift bracket 1 is provided with a limit avoidance position 108, and the PCB board assembly 4 also includes a connector 403, which is arranged on the lateral side of the PCB board 401, embedded in the limit avoidance position 108, and used to connect the controller. The limit avoidance position 108 not only avoids the connector 403, so that the connector 403 can extend out of the shift bracket 1, but also realizes the PCB board assembly 4 being clamped on the shift bracket 1 through the limit connector 403, which is convenient for disassembly and assembly, and improves production efficiency.

[0082] In one embodiment, if Figure 1 and Figure 4-6 As shown, the shift bracket 1 includes an upper bracket 103 and a lower bracket 104, the upper bracket 103 is clamped with the lower bracket 104, and the upper bracket 103 and the lower bracket 104 are enclosed to form the accommodating cavity 101;

[0083] The shift lever 201 is rotatably connected to the upper bracket 103 , the PCB board assembly 4 is fixedly connected to the upper bracket 103 , and the shift block 5 and the buffer pad 6 are fixedly connected to the lower bracket 104 .

[0084] When using, Fig.13 As shown, the PCB board assembly 4 can be assembled on the shift lever 201 to form assembly A; the shift block 5 and the buffer pad 6 can be assembled on the lower bracket 104 to form assembly C; the assembly A consisting of the PCB board assembly 4 and the shift lever 201 can be assembled as a whole on the upper bracket 103, and the other parts in the accommodating cavity 101 can be assembled on the assembly A and the upper bracket 103 to form assembly B; the upper bracket 103 and the lower bracket 104 can be snap-fitted and fixed to realize the assembly of assembly B and assembly C, thereby obtaining an electronic shifter with a simple structure and easy assembly.

[0085] In one embodiment, if Figure 1 , Figure 4 , Figure 6 and Fig.13 As shown, the upper bracket 103 is snap-fitted with the lower bracket 104 to facilitate installation and disassembly, thereby improving production efficiency.

[0086] Specifically, a clamping hole 106 is provided on the upper bracket 103, and a clamping protrusion 105 is provided on the lower bracket 104. When the upper bracket 103 is downwardly mounted on the lower bracket 104, the clamping protrusion 105 extends into the clamping hole 106 to achieve clamping and fixing of the upper bracket 103 and the lower bracket 104.

[0087] Preferably, the lower end of the upper bracket 103 is provided with a plurality of spaced connection parts 1043 along the circumferential direction, and the clamping hole 106 is provided on the connection part 1043. When the connection part 1043 is squeezed by the clamping protrusion 105, it can deform outward, so as to facilitate the clamping, fixing and disassembly of the upper bracket 103 and the lower bracket 104.

[0088] In one embodiment, if Figure 3 , Figure 4 and Fig.13 As shown, the upper bracket 103 further comprises two connecting shafts 7, and the upper bracket 103 is provided with first connecting shaft holes 1031 on opposite sides in the transverse direction. The connecting shafts 7 are respectively inserted into the corresponding first connecting shaft holes 1031 and connected to the shift lever 201; the PCB board assembly 4 is located between the two connecting shafts 7. In this way, the rotation connection structure between the shift lever 201 and the upper bracket 103 is prevented from affecting the arrangement of the PCB board assembly 4, and the PCB board assembly 4 is also prevented from interfering with the rotation of the shift lever 201.

[0089] Preferably, if Figure 3 , Figure 4 and Figure 7 As shown, the shift lever 201 is provided with second connecting shaft holes 2013 on both lateral sides corresponding to the first connecting shaft holes 1031 , and the connecting shaft 7 is embedded in both the first connecting shaft hole 1031 and the second connecting shaft hole 2013 .

[0090] In one embodiment, if Figure 1 , Figure 3 , Figure 8-9 and Fig.13 As shown, it also includes an anti-dropout buckle 8, and an anti-dropout slot 701 is provided on the connecting shaft 7. The anti-dropout buckle 8 is embedded in the upper bracket 103 and is clamped in the anti-dropout slot 701. In this way, the connecting shaft 7 is clamped by the anti-dropout buckle 8 to prevent the connecting shaft 7 from being removed from the first connecting shaft hole 1031 in the lateral direction.

[0091] In one embodiment, if Figure 8-9 As shown, the anti-drop buckle 8 includes two clamping parts 801, an elastic part 802 and two hand-holding parts 803; one end of the elastic part 802 is connected to one end of one of the clamping parts 801, and the other end is connected to one end of the other clamping part 801, and the two hand-holding parts 803 are respectively arranged at one end of the two clamping parts 801 close to the elastic part 802, and the two clamping parts 801 are clamped in the anti-clamping groove and hold the connecting shaft 7 tightly.

[0092] During assembly and disassembly, applying external force to squeeze the two hand-held parts 803 can drive the ends of the two clamping parts 801 away from the elastic part 802 to move away from each other, and at the same time, the elastic part 802 is deformed, and at this time, the connecting shaft 7 can enter and exit the space between the two clamping parts 801; after assembly, when the external force is removed, the elastic part 802 recovers its deformation, and the two clamping parts 801 automatically hold the connecting shaft 7. Thereby, the connection reliability between the connecting shaft 7 and the upper bracket 103 is increased, and assembly and disassembly are convenient.

[0093] In one embodiment, if Figure 5 and Figure 6 As shown, the upper bracket 103 is provided with an upper guide and limit structure 1032, and the upper guide and limit structure 1032 is used to perform vertical installation guidance and horizontal limit on the PCB board assembly 4;

[0094] The lower bracket 104 is provided with a vertical limiting structure 1041, and the vertical limiting structure 1041 abuts against the bottom of the PCB board assembly 4. The upper guide limiting structure 1032 guides the PCB board assembly 4 to facilitate positioning during installation, and the upper guide limiting structure 1032 and the vertical limiting structure 1041 can realize the fixing of the PCB board 401 relative to the shift bracket 1, and the structure is simple.

[0095] In one embodiment, if Figure 6 , Figure 12-13 and Fig.17 As shown, the stop block 5 is connected to the buffer pad 6 as a whole, and a lower guide and limit structure 1042 is provided on the lower bracket 104. The lower guide and limit structure 1042 is used to guide the vertical installation and horizontal limit the buffer pad 6, so as to realize the soft connection between the overall structure formed by the stop block 5 and the buffer pad 6 and the lower bracket 104. The stop block 5 is connected to the buffer pad 6 as a whole, and becomes a separate part, which is convenient for assembly in the lower bracket 104 or removal from the lower bracket 104. Preferably, the buffer pad 6 is integrally coated on the stop block 5, so that the buffer pad 6 and the stop block 5 form an integral plastic package.

[0096] Specifically, there are two lower guide limiting structures 1042, which are respectively arranged on the two longitudinal inner sides of the lower bracket 104. The buffer pad 6 is vertically inserted into the lower guide limiting structure 1042, so that the lower guide limiting structure 1042 can limit the buffer pad 6 in the horizontal and vertical directions. The bottom of the buffer pad 6 is supported on the lower bracket 104, so that the shift block 5 is softly connected with the lower bracket 104 in the horizontal, longitudinal and vertical directions through the buffer pad 6, thereby reducing the gear shifting action noise.

[0097] In one embodiment, if Figure 1-4 , Figure 7 and Fig. 20 As shown, it also includes a top cover 9, the shift lever 201 is provided with an annular groove 2012, the top side of the upper bracket 103 is provided with a protrusion 1033, the shift avoidance groove 102 is provided on the protrusion 1033, the upper end of the top cover 9 is clamped in the annular groove 2012, and the lower end extends to the outside of the peripheral side of the protrusion 1033. The top cover 9 is arranged in this way, dust and water can be prevented from entering the inside of the shift bracket 1 from the shift avoidance groove 102 during the movement of the shift lever 201, waterproof and dustproof are achieved, and the problem of failure of the shift function caused by water and dust entering the inside of the shifter is avoided.

[0098] Preferably, if Figure 1 and Fig. 20 As shown ( Fig. 20 The arrow in the figure indicates the direction of water flow), and a guide groove 107 is also provided on the side of the shift bracket 1. When liquid flows down from the top cover 9, the liquid flows to the side of the shift bracket 1 under the downward diversion effect of the top cover 9, and flows downward along the guide groove 107 to improve the waterproof effect.

[0099] The following, combined Fig.13 Describe the assembly process of the preferred embodiment:

[0100] 1) First, insert the PCB board assembly 4 into the shift lever 201 along the rotation direction and the movement direction to form assembly A;

[0101] 2) Then move the component A to the upper bracket 103 along the direction of the arrow, then pass the two connecting shafts 7 through the upper bracket 103 along the left and right arrows respectively, and snap them into the shift lever 201, then snap the anti-drop buckle 8 into the connecting shaft 7 to prevent the connecting shaft 7 from falling out, then snap the top cover 9 onto the shift lever 201 along the direction of the arrow, finally assemble the shift spring 3, the slide bar 202, the roller shaft 204 and the roller 203 along the direction of the arrow, and assemble the shift spring 3 and the slide bar 202 into the shift lever 201 to form component B;

[0102] 3) Insert the overmolded component consisting of the stop block 5 and the buffer pad 6 into the lower bracket 104 along the direction of the arrow to form a component C;

[0103] 4) Finally, snap component B into component C along the direction of the arrow to complete the assembly of the electronic shifter.

[0104] In this way, all the components of the electronic shifter are connected by snap-fitting, which improves product production efficiency.

[0105] The following, combined Figure 14-19 The working process of the preferred embodiment is described as follows:

[0106] The electronic shifter of the present invention can realize monostable operation, such as Fig.15 As shown ( Fig.15 O is the steady-state position of the shift lever 201, i.e., the physical position where the shift lever 201 can stop naturally. F1, F2, B1, and B2 are the transient positions where the shift lever 201 can send N / D / N / R gear signals. The specific design is the following five-point monostable operation:

[0107] 1) Push the shift lever assembly 2 to the B1 / F1 position, and the shifter sends out the N gear signal;

[0108] 2) Push the shift lever assembly 2 to the B2 position, and the shifter sends out an R gear signal;

[0109] 3) Push the shift lever assembly 2 to the F2 position, and the shifter sends a D gear signal;

[0110] 4) The self-returning function of the shift lever 201 in the B1 / B2 / F1 / F2 position is realized by the shift spring 3, the slide rod 202, the roller shaft 204, the roller 203 and the shift block 5.

[0111] like Fig.18 and Fig.19 The triggering function of the gear position signal is realized by the magnet 205 embedded in the gear lever assembly 2 and the non-contact angle sensor 402 welded on the PCB board 401. When the gear lever assembly 2 rotates, the non-contact angle sensor 402 can identify the position signal and further convert it into a gear position signal to be sent out.

[0112] like Fig.11 , Fig.13 and Figure 16-17 As shown, the present invention, on the one hand, positions the shift block 5 by flexible connection with the lower bracket 104 in the horizontal, longitudinal and vertical directions, and on the other hand, replaces the sliding mode of the slide bar 202 on the shift block 5 by the rolling of the roller 203 on the shift block 5, thereby replacing the sliding friction with the rolling friction, thereby greatly reducing the shifting action noise.

[0113] The present invention performs separate control and matching of the shifting feel and the shifting action sound. Fig.16 It shows that the shifting action sound is achieved by the buffer design of individually controlling the front and rear extreme position limits and the rebound position limit. Fig.15 It is shown that the gear shifting feeling and gear triggering are independently controlled by sliding the slide bar 202 on the curved surface of the gear block 5 .

[0114] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic shifter, comprising a shift bracket, a shift lever assembly, a shift spring and a PCB assembly, wherein the PCB assembly is arranged on the shift bracket and is used to send a shift signal to a controller according to the position of the shift lever assembly, characterized in that: Also includes stops and cushions; The shift lever assembly comprises a shift lever, a slide bar and a roller; The shift lever is rotatably connected to the shift bracket, and the shift block and the buffer pad are fixedly connected to the shift bracket; The slide bar is slidably mounted on the shift rod, and the shift spring is disposed between the shift rod and the slide bar, and forces the lower end of the slide bar to press against the buffer pad; The roller is rotatably connected to the slide bar and rolls on the stop block; The shift lever is provided with a PCB board component avoidance groove, the PCB board component avoidance groove longitudinally passes through the shift lever, the PCB board component is inserted into the PCB board component avoidance groove and is fixed to the shift bracket; A plurality of limit buffer points are convexly arranged on the buffer pad.

2. The electronic shifter according to claim 1, characterized in that: The shift bracket is provided with a receiving cavity, and the PCB board assembly, the slide bar, the roller, the shift spring, the shift block and the buffer pad are located in the receiving cavity; A shift avoidance groove is provided on the top of the shift bracket, the lower end of the shift rod is located in the accommodating cavity, and the upper end passes through the shift avoidance groove and extends out of the shift bracket.

3. The electronic shifter according to claim 2, characterized in that: The shift lever assembly further includes a magnet disposed on the shift lever, and the PCB board assembly includes a PCB board and a sensor disposed on the PCB board and used for detecting the position of the magnet.

4. The electronic shifter according to claim 2, characterized in that: The shift bracket is provided with a limit avoidance position, and the PCB board assembly also includes a connector; the connector is arranged on the lateral side of the PCB board, embedded in the limit avoidance position, and is used to connect to the controller.

5. The electronic shifter according to claim 2, characterized in that: The shift bracket comprises an upper bracket and a lower bracket, the upper bracket is clamped with the lower bracket, and the upper bracket and the lower bracket are enclosed to form the accommodating cavity; The shift lever is rotatably connected to the upper bracket, the PCB board assembly is fixedly connected to the upper bracket, and the shift block and the buffer pad are fixedly connected to the lower bracket.

6. The electronic shifter according to claim 5, characterized in that: It also includes two connecting shafts. The upper bracket is provided with first connecting shaft holes on opposite sides in the horizontal direction. The connecting shafts are embedded in the corresponding first connecting shaft holes one by one and connected to the shift lever. The PCB board assembly is located between the two connecting shafts.

7. The electronic shifter according to claim 6, characterized in that: It also includes an anti-dropping buckle, an anti-dropping slot is provided on the connecting shaft, and the anti-dropping buckle includes two clamping parts, an elastic part and two hand-holding parts; one end of the elastic part is connected to one end of one of the clamping parts, and the other end is connected to one end of the other clamping part, and the two hand-holding parts are respectively arranged at one end of the two clamping parts close to the elastic part; the two clamping parts are clamped in the anti-dropping slot and hold the connecting shaft tightly.

8. The electronic shifter according to claim 5, characterized in that: An upper guide and limit structure is provided on the upper bracket, and the upper guide and limit structure is used to perform vertical installation guidance and horizontal limit on the PCB board assembly; The lower bracket is provided with a vertical limiting structure, and the vertical limiting structure abuts against the bottom of the PCB board assembly.

9. The electronic shifter according to claim 5, characterized in that: The buffer pad is integrally covered on the stop block, and a lower guide and limit structure is provided on the lower bracket, and the lower guide and limit structure is used for vertical installation guidance and horizontal limit of the buffer pad.

10. The electronic shifter according to claim 9, characterized in that: The number of the lower guide limit structures is two, and the two lower guide limit structures are respectively arranged at two longitudinal inner sides of the lower bracket, the buffer pad is vertically plugged into the lower guide limit structures, and the bottom is supported by the lower bracket.

11. The electronic shifter according to claim 1, characterized in that: The shift lever is provided with a slide rod guide hole and a mounting guide column, the slide rod is provided with a stop portion, the slide rod is slidably arranged in the slide rod guide hole, the upper end of the shift spring is sleeved on the mounting guide column, and the lower end is sleeved on the upper end of the slide rod, and the stop portion is used to abut the lower end of the shift spring.

12. The electronic shifter according to claim 5, characterized in that: It also includes a top cover, the shift lever is provided with an annular groove, the top side of the upper bracket is provided with a protrusion, the shift avoidance groove is provided on the protrusion, the upper end of the top cover is clamped in the annular groove, and the lower end extends to the outside of the peripheral side of the protrusion.

Images