Gear shifting rocker arm assembly and electronic gear shifter

Abstract

The utility model discloses a gear shifting rocker arm assembly which is used for assisting a gear shifting mechanism in gear shifting operation and comprises a body, a warhead mechanism, a noise reduction part, a connecting mechanism and a transmission mechanism. The body comprises a sleeve part, the sleeve part is used for containing the bullet mechanism, and the noise reduction part is arranged between the sleeve part and the bullet mechanism and used for reducing collision between the bullet mechanism and the sleeve part; the connecting mechanism and the transmission mechanism are both arranged on the body, the connecting mechanism is used for connecting and fixing the body, and the transmission mechanism is used for transmitting gear shifting information in the gear shifting operation. According to the gear shifting rocker arm assembly, the noise reduction part is arranged on the noise reduction warhead, so that the noise generated by collision between the noise reduction warhead and the sleeve part can be reduced, the noise generated by the gear shifting rocker arm assembly in the gear shifting process is reduced, and the use experience of an operator is provided. The utility model further discloses an electronic gear shifter. The electronic gear shifter comprises a shell and the gear shifting rocker arm assembly arranged in the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a gear shift rocker arm assembly and an electronic gear shifter. Background Art

[0002] With the continuous improvement of people's living standards, the use of automobiles has become increasingly popular, and users have higher and higher requirements for automobile performance. Among them, the shift mechanism, as an important component of the automobile transmission system, has been continuously improved and developed, from the initial hand lever shift to the rotary shift. At the same time, the shift rocker arm has also been continuously improved with the improvement of the shift mechanism. However, the existing rotary shift mechanism makes a lot of noise during the shifting process, which affects the user experience. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that the gear shift rocker arm generates noise during the gear shifting process.

[0004] In order to achieve the above object, the utility model provides a shift rocker arm assembly for assisting a shift mechanism in performing a shift operation, comprising:

[0005] The body, the warhead mechanism, the noise reduction part, the connection mechanism and the transmission mechanism;

[0006] The body comprises: a sleeve portion, the sleeve portion is used to accommodate the bullet mechanism, and the noise reduction portion is between the sleeve portion and the bullet mechanism, and is used to reduce the collision between the bullet mechanism and the sleeve portion;

[0007] The connecting mechanism and the transmitting mechanism are both arranged on the main body, the connecting mechanism is used to connect and fix the main body, and the transmitting mechanism is used to transmit the shifting information in the shifting operation.

[0008] According to another specific embodiment of the present invention, the bullet mechanism includes: a noise reduction bullet;

[0009] The noise reduction bullet is slidably arranged in the sleeve part, a noise reduction part is arranged on the surface of the noise reduction bullet, and one end of the noise reduction bullet protrudes from the sleeve part.

[0010] According to another specific embodiment of the present invention, the noise reduction portion includes: at least one buffer rib;

[0011] The at least one buffer rib is circumferentially arranged on the surface of the noise reduction bullet, and the buffer rib is used to buffer the impact force of the noise reduction bullet colliding with the sleeve part.

[0012] According to another specific embodiment of the present invention, the buffer rib includes: a first buffer rib and a second buffer rib;

[0013] The first buffer rib is arranged on the surface of the noise reduction bullet subjected to the impact force, the first surface of the first buffer rib is inclined, the first surface of the first buffer rib is the side surface close to the impact force, and the second buffer rib is arranged on the surface of the noise reduction bullet perpendicular to the impact force.

[0014] According to another specific embodiment of the present invention, the bullet mechanism includes: a reset portion;

[0015] The reset portion comprises: a reset spring, wherein the reset spring is arranged in the sleeve portion;

[0016] The noise reduction bullet is a hollow structure, and the reset spring is at least partially located in the noise reduction bullet, and is used to reset the shift mechanism after shifting.

[0017] According to another specific embodiment of the present invention, a baffle is provided at the outer end of the sleeve portion.

[0018] According to another specific embodiment of the present invention, the body further comprises: a central axis portion;

[0019] The cross section of the middle shaft portion is circular, the connecting mechanism and the transmission mechanism are both arranged in the middle shaft portion, and at least two sleeve portions arranged opposite to each other are arranged on the middle shaft portion.

[0020] According to another specific embodiment of the present invention, the connecting mechanism includes: a connecting hole and a connecting portion;

[0021] The connecting hole is arranged at the center of the middle axis of the main body, and the connecting part is arranged circumferentially with the connecting hole as the center.

[0022] According to another specific embodiment of the present invention, the transmission mechanism includes: a mounting portion;

[0023] The mounting portion is arranged on the main body, and a magnetic mechanism is provided on the mounting portion.

[0024] An electronic shifter comprises a shell and a shift rocker arm assembly arranged in the shell, wherein the shell is provided with a knob, the knob is connected to the shift rocker arm assembly through the connecting mechanism, a sawtooth bar is provided in the shell corresponding to the bullet mechanism, and the sawtooth bar cooperates with the bullet mechanism.

[0025] The utility model provides a shift rocker arm assembly, which has the following beneficial effects:

[0026] 1. In order to maintain the mechanical feel of gear rotation during the gear shifting process, the shift rocker arm in the existing shift mechanism has a noise reduction bullet in the shift rocker arm rubbing against the serrated contact surface, resulting in a large noise generated by the collision and friction between the noise reduction bullet and the sleeve part during the gear shifting process. The utility model can reduce the sound generated by the collision between the noise reduction bullet and the sleeve part by providing a noise reduction part on the noise reduction bullet, thereby reducing the noise generated by the shift rocker arm assembly during the gear shifting process and providing an operator with a better use experience.

[0027] 2. The utility model resets the shift mechanism after the shift through the reset part, and the reset part pushes the noise reduction bullet to extend through the elastic force of the spring to reset the shift mechanism. The structure is simple and the design is ingenious, which ensures the stability of the reset of the shift mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0029] Figure 1 A three-dimensional diagram of a shift rocker arm assembly of the utility model is schematically shown;

[0030] Figure 2 A schematic front view of a shift rocker arm assembly of the utility model is shown;

[0031] Figure 3 A cross-sectional view of a shift rocker arm assembly of the utility model is schematically shown;

[0032] Figure 4 The structure diagram of a noise reduction bullet of a shift rocker arm assembly of the utility model is schematically shown;

[0033] Figure 5 The structure diagram of the noise reduction bullet of another shift rocker arm assembly of the utility model is schematically shown;

[0034] Figure 6 The structure diagram of the noise reduction bullet of the shift rocker arm assembly of the utility model is schematically shown;

[0035] Figure 7 The structure diagram of the noise reduction bullet of another shift rocker arm assembly of the utility model is schematically shown.

[0036] The reference numerals in the figure are: 1 is the main body, 11 is the central axis part, 12 is the sleeve part, 2 is the bullet mechanism, 21 is the noise reduction bullet, 22 is the reset part, 23 is the first buffer rib, 24 is the baffle, 25 is the second buffer rib, 3 is the connecting mechanism, 31 is the connecting hole, 32 is the connecting part, and 4 is the transmission mechanism. DETAILED DESCRIPTION

[0037] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0038] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0040] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0041] like Figures 1 to 4 As shown, in this embodiment, a shift rocker arm assembly is used to assist a shift mechanism in performing a shift operation, comprising: a main body 1, a bullet mechanism 2, a noise reduction portion, a connecting mechanism 3 and a transmission mechanism 4; the main body 1 comprises: a sleeve portion 12, the sleeve portion 12 is used to accommodate the bullet mechanism 2, the noise reduction portion is between the sleeve portion 12 and the bullet mechanism 2, and is used to reduce the collision between the bullet mechanism 2 and the sleeve portion 12; the connecting mechanism 3 and the transmission mechanism 4 are both arranged on the main body 1, the connecting mechanism 3 is used to connect and fix the main body 1, and the transmission mechanism 4 is used to transmit the shift information in the shift operation.

[0042] In order to maintain the mechanical feel of gear rotation during the gear shifting process, the shift rocker arm in the existing shift mechanism has a noise reduction bullet 21 in the shift rocker arm rubbing against the serrated contact surface, resulting in a large noise generated by the collision and friction between the noise reduction bullet 21 and the sleeve portion 12 during the gear shifting process. Providing a noise reduction portion on the noise reduction bullet 21 can reduce the sound generated by the collision between the noise reduction bullet 21 and the sleeve portion 12, thereby reducing the noise emitted by the shift rocker arm assembly during the gear shifting process.

[0043] That is to say, the shift rocker arm assembly consists of a main body 1, a bullet mechanism 2, a noise reduction part, a connecting mechanism 3 and a transmission mechanism 4. The bullet mechanism 2, the noise reduction part, the connecting mechanism 3 and the transmission mechanism 4 are all arranged on the main body 1. The shift rocker arm assembly is connected to the knob of the shift mechanism through the connecting mechanism 3, so that the shift rocker arm assembly and the knob rotate synchronously. The end of the bullet mechanism 2 is pressed against the serrated contact surface of the shift mechanism, so that the shift rocker arm assembly produces a mechanical feel of gear rotation when it rotates. The transmission mechanism 4 can send different signals according to the rotation direction and angle of the shift rocker arm assembly, so that the car can shift to different gears according to the received signal.

[0044] It should be noted that the present application does not limit the specific structure of the bullet mechanism 2, and a reasonable selection can be made according to the specific situation, as long as it can achieve reset after shifting and generate the mechanical feel of gear rotation during the shifting process.

[0045] Specifically, Figures 3 to 7 As shown, in this embodiment, the bullet mechanism 2 includes: a noise reduction bullet 21; the noise reduction bullet 21 is slidably arranged in the sleeve portion 12, a noise reduction portion is provided on the surface of the noise reduction bullet 21, and one end of the noise reduction bullet 21 is arranged outward.

[0046] In other words, the noise reduction bullet 21 is slidably arranged in the sleeve portion 12, the main body of the noise reduction bullet 21 is cylindrical, one end of the noise reduction bullet 21 extends out of the sleeve portion 12, and the end is in a conical bullet shape, and a noise reduction portion is provided on the main body surface of the noise reduction bullet 21. The noise reduction portion plays a buffering role and can effectively reduce the collision force between the noise reduction bullet 21 and the inner wall of the sleeve portion 12, thereby reducing the noise emitted by the shift rocker arm assembly during the gear shifting process.

[0047] It should be noted that the present application does not limit the specific structure of the noise reduction part, and it can be reasonably selected according to the specific situation. Specifically, the noise reduction part can be sound insulation noise reduction, sound absorption noise reduction or sound attenuation noise reduction, as long as it can reduce the sound generated by the collision between the noise reduction bullet 21 and the inner wall of the sleeve part 12.

[0048] Furthermore, if Figures 3 to 7As shown, in this embodiment, the noise reduction portion includes: at least one buffer rib; the at least one buffer rib is circumferentially arranged on the surface of the noise reduction bullet 21, and the buffer rib is used to buffer the impact force of the noise reduction bullet 21 colliding with the sleeve portion 12.

[0049] That is to say, the noise reduction part is mainly composed of buffer ribs arranged circumferentially around the noise reduction bullet 21, and the buffer ribs are radially arranged on the cylindrical surface of the noise reduction bullet 21. In this embodiment, the noise reduction bullet 21 and the buffer ribs are both made of TPC-ET material. TPC-ET is also called polyester rubber (or TPEE), which is a type of linear block copolymer containing PBT (polybutylene terephthalate) polyester hard segment and aliphatic polyester or polyether soft segment. It has both the excellent elasticity of rubber and the easy processability of thermoplastic plastics, with adjustable hardness and free design, and can effectively alleviate the collision force and reduce the noise generated by the collision.

[0050] Specifically, Figures 3 to 7 As shown, in this embodiment, the buffer ribs include: a first buffer rib 23 and a second buffer rib 25;

[0051] The first buffer rib 23 is arranged on the surface of the noise reduction bullet 21 subjected to the impact force, the first surface of the first buffer rib 23 is inclined, the first surface of the first buffer rib 23 is the side surface close to the impact force, and the second buffer rib 25 is arranged on the surface of the noise reduction bullet 21 perpendicular to the impact force.

[0052] That is to say, in this embodiment, the first buffer rib 23 is arranged on the impacted surface of the noise reduction bullet 21, and two first buffer ribs 23 are arranged on each impacted surface. The top of the first buffer rib 23 is against the inner wall of the sleeve portion 12, and the second buffer rib 25 is arranged on the surface perpendicular to the impact force of the noise reduction bullet 21. The second buffer rib 25 cooperates with the first buffer rib 23 to fix the noise reduction bullet 21. By tilting the first buffer rib 23 close to the impact force, the impact force is dispersed to the upper and lower sides of the noise reduction bullet 21, thereby buffering the impact force received by the noise reduction bullet 21, thereby reducing the noise emitted by the shift rocker arm assembly during the shifting process.

[0053] like Figures 4 to 6As shown, in other embodiments, the noise reduction bullet 21 is rectangular as a whole, and the end is bullet-shaped. The first buffer rib 23 is arranged on the impacted surfaces on the left and right sides of the noise reduction bullet 21, and two first buffer ribs 23 are arranged on each impacted surface. The top of the first buffer rib 23 is against the inner wall of the sleeve portion 12, and the second buffer rib 25 is arranged on the upper and lower surfaces of the noise reduction bullet 21, and two second buffer ribs 25 are arranged on each surface. The second buffer rib 25 cooperates with the first buffer rib 23 to fix the noise reduction bullet 21. By tilting the first buffer rib 23 close to the impact force, the impact force is dispersed to the upper and lower sides of the noise reduction bullet 21, thereby buffering the impact force received by the noise reduction bullet 21, thereby reducing the noise emitted by the shift rocker arm assembly during the shifting process.

[0054] It should be noted that the present application does not limit the specific structure of the reset part 22, and a reasonable selection can be made according to the specific situation. Specifically, the reset part 22 can be a forced reset by external force or a spring reset by spring return force, as long as the shift mechanism can be reset after the gear shift.

[0055] Furthermore, if Figures 1 to 3 As shown, in this embodiment, the bullet mechanism 2 includes: a reset portion 22; the reset portion 22 includes: a reset spring, which is arranged in the sleeve portion 12; the noise reduction bullet 21 is a hollow structure, and the reset spring is at least partially located in the noise reduction bullet 21, which is used to reset the shift mechanism after shifting.

[0056] In other words, the reset portion 22 includes a reset spring arranged at the rear end of the noise reduction bullet 21, one end of the reset spring is partially arranged in the noise reduction bullet 21, and the other end is pressed against the inner wall of the sleeve portion 12. During the gear shifting process of the gear shifting mechanism, the noise reduction bullet 21 contacts the serrated contact surface, causing the noise reduction bullet 21 to shrink into the sleeve portion 12, thereby compressing the reset spring. After the user completes the gear shifting, the elastic force of the reset spring will push the noise reduction bullet 21 to extend out of the sleeve portion 12, so that the gear shifting mechanism is reset, which is convenient for the user to perform the gear shifting operation next time.

[0057] Furthermore, if Figures 1 to 3 As shown, in this embodiment, a baffle 24 is provided at the outer end of the sleeve portion 12 .

[0058] In other words, a baffle 24 is provided at the end of the sleeve portion 12, and the baffle 24 is located below the noise reduction bullet 21. When the shift rocker arm is in use, grease will be applied to the surface of the noise reduction bullet 21 for lubrication. The baffle 24 can prevent the grease from falling and prevent the grease from contaminating other components of the shift mechanism. At the same time, it can also prevent foreign matter at the bottom of the shift mechanism from entering the sleeve portion 12 due to vibration, thereby preventing foreign matter from damaging the noise reduction bullet 21 and causing damage to the shift rocker arm assembly.

[0059] Specifically, Figures 1 to 3 As shown, in this embodiment, the main body 1 also includes: a central axis portion 11; the cross-section of the central axis portion 11 is circular, the connecting mechanism 3 and the transmission mechanism 4 are both arranged in the central axis portion 11, and at least two relatively arranged sleeve portions 12 are provided on the central axis portion 11.

[0060] That is to say, the main body 1 is composed of a central axis portion 11 and a sleeve portion 12. The cross-section of the central axis portion 11 is circular, and two sleeve portions 12 are mirrored on the central axis portion 11 to make the shift rocker arm assembly more stable during the rotation process. A connecting mechanism 3 and a transmission mechanism 4 are provided in the central axis portion 11. The connecting mechanism 3 can be connected to the shift mechanism so that the main body 1 can rotate synchronously during the shifting process.

[0061] It should be noted that the present application does not limit the specific structure of the connection mechanism 3, and a reasonable selection can be made according to the specific situation. Specifically, the connection mechanism 3 can be a snap connection, a riveted connection or a bolt connection, as long as it can achieve connection with the shift mechanism.

[0062] Specifically, Figures 1 to 3 As shown, in this embodiment, the connection mechanism 3 includes: a connection hole 31 and a connection portion 32; the connection hole 31 is arranged at the center of the middle axis portion 11 of the body 1, and the connection portion 32 is circumferentially arranged with the connection hole 31 as the center.

[0063] In other words, the connecting mechanism 3 is composed of a connecting hole 31 and a connecting portion 32. The connecting hole 31 is arranged at the center of the middle axis portion 11, and is used to be coaxially connected to the shift mechanism so that the shift rocker arm assembly and the shift mechanism can move coaxially. The connecting portion 32 is arranged on the middle axis portion 11 and is circumferentially arranged with the connecting hole 31 as the center. The shift rocker arm assembly can be fixedly connected to the shift mechanism through the connecting portion 32, so that the shift rocker arm assembly and the shift mechanism can rotate synchronously.

[0064] It should be noted that the present application does not limit the specific structure of the transmission mechanism 4, and a reasonable selection can be made according to the specific situation. Specifically, the transmission mechanism 4 can be electrical signal transmission, sound wave transmission or electromagnetic transmission, as long as it can achieve signal transmission for the gear position of the gear shift.

[0065] Specifically, Figures 1 to 3 As shown, in this embodiment, the transmission mechanism 4 includes: a mounting portion; the mounting portion is arranged on the main body 1, and a magnetic mechanism is provided on the mounting portion.

[0066] That is to say, the transmission mechanism 4 includes an installation part, the installation part is arranged on the main body 1, and a magnetic mechanism is fixed on the installation part. In this embodiment, signal transmission is carried out through the principle of sensor cutting magnetic field, which is used to transmit the gear shifting signal to the car, thereby achieving the purpose of wireless signal transmission.

[0067] It should be noted that the present application does not limit the specific structure of the mounting portion, and a reasonable selection can be made according to the specific situation. Specifically, the mounting portion can be snap-connected, riveted or bolted, as long as the magnetic mechanism can be fixed.

[0068] An electronic shifter comprises a shell and a shift rocker arm assembly arranged in the shell, wherein the shell is provided with a knob, the knob is connected to the shift rocker arm assembly through the connecting mechanism 3, a sawtooth bar is provided in the shell corresponding to the bullet mechanism 2, and the sawtooth bar cooperates with the bullet mechanism 2.

[0069] In other words, the electronic shifter consists of a housing, a shift rocker arm assembly, a knob and a serrated bar. The shift rocker arm assembly and the serrated bar are both arranged in the housing, and the knob is arranged above the housing. The knob is connected to the shift rocker arm assembly through a connecting portion 32. The rotating shaft connected to the knob passes through a connecting hole 31 of the shift rocker arm assembly. The serrated bar is arranged corresponding to two noise reduction bullets 21, so that the operator has a mechanical feel of gear transmission when shifting gears.

[0070] In general, the present application provides a shift rocker arm assembly, which can be fixedly connected to the shift mechanism through a connecting portion 32, so that the shift rocker arm assembly and the shift mechanism rotate synchronously, and the end of the noise reduction bullet 21 is pressed against the serrated bar of the shift mechanism, so that the shift rocker arm assembly produces a mechanical feel of gear rotation when rotating, and the impact force of the noise reduction bullet 21 colliding with the inner wall of the sleeve portion 12 is buffered to both sides by the buffer ribs, thereby reducing the noise generated by the collision, and the transmission mechanism 4 can send different signals according to the rotation direction and angle of the shift rocker arm assembly, so that the car can shift to different gears according to the received signal. After the gear shift is completed, the elastic force of the reset spring will push the noise reduction bullet 21 to extend out of the sleeve portion 12, so that the shift mechanism is reset.

[0071] In summary, the above embodiments provided by the present invention are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A shift rocker arm assembly, used to assist a shift mechanism in shifting operations, characterized in that: include: The body, the warhead mechanism, the noise reduction part, the connection mechanism and the transmission mechanism; The body comprises: a sleeve portion, the sleeve portion is used to accommodate the bullet mechanism, and the noise reduction portion is between the sleeve portion and the bullet mechanism, and is used to reduce the collision between the bullet mechanism and the sleeve portion; The connecting mechanism and the transmitting mechanism are both arranged on the main body, the connecting mechanism is used to connect and fix the main body, and the transmitting mechanism is used to transmit the shifting information in the shifting operation; The bullet mechanism comprises: a noise reduction bullet, the noise reduction bullet is slidably arranged in the sleeve part, a noise reduction part is arranged on the surface of the noise reduction bullet, and one end of the noise reduction bullet protrudes from the sleeve part.

2. The shift rocker arm assembly according to claim 1, characterized in that: The noise reduction portion includes: at least one buffer rib; The at least one buffer rib is circumferentially arranged on the surface of the noise reduction bullet, and the buffer rib is used to buffer the impact force of the noise reduction bullet colliding with the sleeve part.

3. The shift rocker arm assembly according to claim 2, characterized in that: The buffer ribs include: a first buffer rib and a second buffer rib; The first buffer rib is arranged on the surface of the noise reduction bullet subjected to the impact force, the first surface of the first buffer rib is inclined, the first surface of the first buffer rib is the side surface close to the impact force, and the second buffer rib is arranged on the surface of the noise reduction bullet perpendicular to the impact force.

4. The shift rocker arm assembly according to claim 1, characterized in that: The bullet mechanism comprises: a reset portion; The reset portion comprises: a reset spring, wherein the reset spring is arranged in the sleeve portion; The noise reduction bullet is a hollow structure, and the reset spring is at least partially located in the noise reduction bullet, and is used to reset the shift mechanism after shifting.

5. The shift rocker arm assembly according to claim 1, characterized in that: A baffle is provided at the outer end of the sleeve portion.

6. The shift rocker arm assembly according to claim 1, characterized in that: The body further comprises: a central axis portion; The cross section of the middle shaft portion is circular, the connecting mechanism and the transmission mechanism are both arranged in the middle shaft portion, and at least two sleeve portions arranged opposite to each other are arranged on the middle shaft portion.

7. The shift rocker arm assembly according to claim 6, characterized in that: The connecting mechanism comprises: a connecting hole and a connecting portion; The connecting hole is arranged at the center of the middle axis of the main body, and the connecting part is arranged circumferentially with the connecting hole as the center.

8. The shift rocker arm assembly according to claim 1, characterized in that: The transmission mechanism comprises: a mounting portion; The mounting portion is arranged on the main body, and a magnetic mechanism is provided on the mounting portion.

9. An electronic shifter, characterized in that: It comprises a shell and a shift rocker arm assembly as described in any one of claims 1 to 8 arranged in the shell, the shell is provided with a knob, the knob is connected to the shift rocker arm assembly through the connecting mechanism, a serrated bar is provided in the shell corresponding to the bullet mechanism, and the serrated bar cooperates with the bullet mechanism.

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