阅读说明：本技术 一种单稳态旋钮换挡装置 (Monostable knob gearshift ) 是由 豆书强 袁建波 岑剑彬 罗水根 谢光 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种单稳态旋钮换挡装置,包括壳体、旋钮、主转动体、至少一组挡位组件、从转动体以及主控电路板；旋钮可转动地安装于壳体上；主转动体与旋钮连接,主转动体上配置有主动齿轮；挡位组件包括支座、齿条、第一弹性部件以及弹性定位部件,支座开设有一齿条槽、挡位槽以及一稳态槽,齿条能够滑动地安装于齿条槽内,齿条与主动齿轮啮合,第一弹性部件配置于支座和齿条的端部之间,弹性定位部件能够在与挡位槽配合或与稳态槽配合之间切换；从转动体可转动地安装于壳体内,从转动体配置有从动齿轮以及配置于所述从动齿轮上的信号发生单元,从动齿轮与主动齿轮啮合；主控电路板上配置有信号感应单元。其能够简化结构且提高操纵手感。(The invention discloses a monostable knob gear shifting device which comprises a shell, a knob, a main rotating body, at least one group of gear components, a slave rotating body and a master control circuit board, wherein the main rotating body is arranged on the shell; the knob is rotatably arranged on the shell; the main rotating body is connected with the knob, and a driving gear is arranged on the main rotating body; the gear assembly comprises a support, a rack, a first elastic component and an elastic positioning component, wherein the support is provided with a rack groove, a gear groove and a stable groove, the rack can be slidably arranged in the rack groove, the rack is meshed with the driving gear, the first elastic component is arranged between the support and the end part of the rack, and the elastic positioning component can be switched between being matched with the gear groove or being matched with the stable groove; the slave rotating body is rotatably arranged in the shell, the slave rotating body is provided with a driven gear and a signal generating unit arranged on the driven gear, and the driven gear is meshed with the driving gear; the main control circuit board is provided with a signal sensing unit. Which can simplify the structure and improve the handling feeling.)

1. A monostable knob gear shifting device is characterized by comprising a shell, a knob, a main rotating body, at least one group of gear components, a slave rotating body and a master control circuit board;

the knob is rotatably arranged on the shell;

the main rotating body is connected with the knob so as to be capable of rotating along with the knob, and a driving gear is arranged on the main rotating body;

the gear assembly comprises a support, a rack, a first elastic component and an elastic positioning component, the support is fixedly arranged, the support is provided with a rack groove, a plurality of blocking grooves and a stable groove which are communicated with the rack groove, the blocking grooves and the stable groove are sequentially arranged along the length direction of the support, the stable groove is positioned in the middle of the plurality of stop grooves, the rack can be slidably arranged in the rack groove, the rack is engaged with the driving gear, the first elastic component is arranged between the support and the end part of the rack, the first elastic component is used for providing reset elastic force for the rack, the elastic positioning component is configured on the rack, the elastic positioning component can be switched between being matched with the stop groove or the stable groove and can be reset to be matched with the stable groove under the reset action of the rack;

the driven rotating body is rotatably arranged in the shell, a driven gear and a signal generating unit arranged on the driven gear are arranged on the driven rotating body, and the driven gear is meshed with the driving gear;

the main control circuit board is provided with a signal sensing unit, and the signal sensing unit is matched with the signal generating unit and used for receiving the rotation angle information of the driven gear.

2. A monostable knob shifting device according to claim 1, wherein there are two sets of gear assemblies, the two sets of gear assemblies being located on opposite sides of the pinion gear, the racks in the two sets of gear assemblies engaging opposite sides of the pinion gear.

3. A monostable knob shifting device according to claim 1, wherein the top surface of the housing is provided with a plurality of first gear characters, at least the top surface of the housing being made of a light transmitting material; monostable knob gearshift still include with the vice accuse circuit board that the master control circuit board electricity is connected, vice accuse circuit board install in the casing, dispose on the vice accuse circuit board and be located the first fender position display module group under the first fender position character, first fender position display module group is used for showing and corresponds first fender position character will first fender position character on the casing is lighted.

4. A monostable knob shift device according to claim 1 further including a knob upper cover, the knob being provided with a through hole passing through its upper and lower ends, the knob upper cover being slidably mounted in the through hole, the top of the knob upper cover being provided with a second gear character, the knob upper cover being capable of activating a gear button located on the main control circuit board, the gear activated by the gear button matching the gear of the second gear character.

5. A monostable knob shifting device according to claim 4, wherein the second gear character is a P gear character.

6. A monostable knob shift device according to claim 4, in which the knob upper cover is made of a light transmitting material; the monostable knob gear shifting device further comprises a light guide column, the light guide column is slidably arranged in the shell and penetrates through the main rotating body, a first end of the light guide column is connected with the lower end of the knob upper cover, and a second end of the light guide column is connected with the gear key; and the main control circuit board is provided with a second gear display module at a position corresponding to the second end position of the light guide column, and the second gear display module is used for displaying a corresponding second gear character and lightening the second gear character on the knob upper cover.

7. The monostable knob shift device according to claim 1, wherein the holder has guide holes formed at both ends thereof and communicating with the rack groove, the guide holes having a smaller aperture than a width of the rack groove, guide posts are provided at both ends of the rack, the guide posts are slidably fitted with the guide holes, and the first elastic member is fitted over the guide posts.

8. A monostable knob shift device according to claim 7, the range assembly further comprising a carrier end cap, one end of the rack slot passing through the first end of the carrier, the carrier end cap being disposed at the first end of the carrier and one of the guide holes of the carrier being disposed in the carrier end cap.

9. The monostable knob shift device according to claim 1, wherein a stepped hole is formed in the middle of the rack through the upper and lower ends thereof, the stepped hole includes a small aperture end and a large aperture end which are sequentially arranged from top to bottom, the elastic positioning member includes a positioning column and a second elastic member, the positioning column includes a guide portion, a limit portion and a positioning portion which are sequentially connected, the guide portion is slidably fitted with the small aperture end, the second elastic member is sleeved on the guide portion and is located between the inner wall of the rack and the limit portion, the limit portion is slidably fitted with the large aperture end, and the positioning portion can be fitted with the stopper groove or fitted with the steady groove; and/or the driven gear, the signal generating unit and the signal sensing unit are coaxial; and/or the signal generating unit is a magnetic field generator, the signal sensing unit is an angle sensor, and the angle sensor is in contactless connection with the magnetic field generator.

10. A monostable knob shift device according to claim 1, wherein the housing includes a face plate, an upper bracket, a lower bracket and a base in that order; the panel is arranged at the top and is used for the knob to penetrate out; the upper support is buckled on the base, the lower support is positioned between the upper support and the base, and the driving gear, the gear assembly and the driven gear are positioned between the upper support and the lower support; the upper end of the main rotating body penetrates out of the upper bracket and is connected with the knob, the driving gear is rotatably arranged on the lower bracket, and the driving gear is limited by the upper bracket and the lower bracket; the driven gear is rotatably arranged on the lower bracket and limited by the upper bracket; the main control circuit board is located between the lower support and the base.

Technical Field

The invention relates to the technical field of gear shifting devices, in particular to a monostable knob gear shifting device.

Background

The knob gear shifting device is equipment which enables a knob to rotate to different gears by rotating the knob and realizes gear shifting by identifying the current position of the knob.

Currently, knob shifting devices are mainly divided into the following two structures:

the knob gear shifting device with the fixed gear position has four absolute positions of PRND, each absolute position corresponds to one gear, and the knob is rotated to a certain corresponding position to enter the corresponding gear. The fixed position knob gear shifting device has the advantages that in order to enable a consumer to clearly perceive the position of the gear, the hand feeling of each position needs to be designed elaborately, and secondly, the absolute corresponding relation between the gear and the position exists, so that the requirements of automatic parking and automatic driving cannot be met.

And secondly, the knob gear shifting device with the monostable structure is provided with only one fixed position O point, the knob can rotate 1 or 2 positions towards the left direction and the right direction (R, L direction) respectively, each position of the knob corresponds to a fixed gear, and after the knob is rotated to the fixed gear and the hand is loosened towards the left direction and the right direction, the knob automatically returns to the O point position. The knob gear shifting device has the advantages that the automatic parking requirement can be met, but the knob gear shifting device has the defects that the structure is complex, and the operation hand feeling of a knob is poor.

Disclosure of Invention

In order to overcome the disadvantages of the prior art, the present invention provides a monostable knob shift device which can simplify the structure and improve the handling feeling.

The purpose of the invention is realized by adopting the following technical scheme:

a monostable knob gear shifting device comprises a shell, a knob, a main rotating body, at least one group of gear components, a slave rotating body and a master control circuit board;

the knob is rotatably arranged on the shell;

the main rotating body is connected with the knob so as to be capable of rotating along with the knob, and a driving gear is arranged on the main rotating body;

the gear assembly comprises a support, a rack, a first elastic component and an elastic positioning component, the support is fixedly arranged, the support is provided with a rack groove, a plurality of blocking grooves and a stable groove which are communicated with the rack groove, the blocking grooves and the stable groove are sequentially arranged along the length direction of the support, the stable groove is positioned in the middle of the plurality of stop grooves, the rack can be slidably arranged in the rack groove, the rack is engaged with the driving gear, the first elastic component is arranged between the support and the end part of the rack, the first elastic component is used for providing reset elastic force for the rack, the elastic positioning component is configured on the rack, the elastic positioning component can be switched between being matched with the stop groove or the stable groove and can be matched with the stable groove under the reset action of the rack;

the driven rotating body is rotatably arranged in the shell, a driven gear and a signal generating unit arranged on the driven gear are arranged on the driven rotating body, and the driven gear is meshed with the driving gear;

the main control circuit board is provided with a signal sensing unit, and the signal sensing unit is matched with the signal generating unit and used for receiving the rotation angle information of the driven gear.

Furthermore, keep off the position subassembly and dispose two sets ofly, two sets of keep off the position subassembly and arrange in separately the relative both sides of driving gear, two sets of the rack that keeps off in the position subassembly respectively with the relative both sides meshing of driving gear.

Furthermore, a plurality of first gear characters are arranged on the top surface of the shell, and at least the top surface of the shell is made of a light-transmitting material; monostable knob gearshift still include with the vice accuse circuit board that the master control circuit board electricity is connected, vice accuse circuit board install in the casing, dispose on the vice accuse circuit board and be located the first fender position display module group under the first fender position character, first fender position display module group is used for showing and corresponds first fender position character will first fender position character on the casing is lighted.

The knob is provided with a through hole penetrating through the upper end and the lower end of the knob; the knob upper cover can be installed in the through hole in a sliding mode, a second gear character is configured at the top of the knob upper cover, the knob upper cover can trigger a gear key located on the main control circuit board, and a gear triggered by the gear key is matched with a gear of the second gear character.

Further, the second gear character is a P gear character.

Furthermore, the knob upper cover is made of a light-transmitting material; the monostable knob gear shifting device further comprises a light guide column, the light guide column is slidably arranged in the shell and penetrates through the main rotating body, a first end of the light guide column is connected with the lower end of the knob upper cover, and a second end of the light guide column is connected with the gear key; and the main control circuit board is provided with a second gear display module at a position corresponding to the second end position of the light guide column, and the second gear display module is used for displaying a corresponding second gear character and lightening the second gear character on the knob upper cover.

Furthermore, both ends of the support are provided with guide holes communicated with the rack grooves, both ends of the rack are provided with guide columns, the guide columns are in sliding fit with the guide holes, and the first elastic component is sleeved on the guide columns; and an avoiding groove communicated with the rack groove is formed in the side part of the support, and the avoiding groove is used for allowing the gear teeth of the driving gear to extend into and to be meshed with the gear teeth of the rack.

Further, the gear assembly further comprises a support end cover, one end of the rack slot penetrates through the first end of the support, the support end cover is arranged at the first end of the support, and one guide hole of the support is arranged on the support end cover.

Furthermore, a stepped hole penetrating through the upper end and the lower end of the rack is formed in the middle of the rack, the stepped hole comprises a small aperture end and a large aperture end which are sequentially arranged from top to bottom, the elastic positioning part comprises a positioning column and a second elastic part, the positioning column comprises a guide part, a limiting part and a positioning part which are sequentially connected, the guide part can be in sliding fit with the small aperture end, the second elastic part is sleeved on the guide part and positioned between the inner wall of the rack and the limiting part, the limiting part can be in sliding fit with the large aperture end, and the positioning part can be matched with the stop groove or the stable groove; and/or the driven gear, the signal generating unit and the signal sensing unit are coaxial; and/or the signal generating unit is a magnetic field generator, the signal sensing unit is an angle sensor, and the angle sensor is in contactless connection with the magnetic field generator.

Furthermore, the shell comprises a panel, an upper bracket, a lower bracket and a base which are arranged in sequence; the panel is arranged at the top and is used for the knob to penetrate out; the upper support is buckled on the base, the lower support is positioned between the upper support and the base, and the driving gear, the gear assembly and the driven gear are positioned between the upper support and the lower support; the upper end of the main rotating body penetrates out of the upper bracket and is connected with the knob, the driving gear is rotatably arranged on the lower bracket, and the driving gear is limited by the upper bracket and the lower bracket; the driven gear is rotatably arranged on the lower bracket and limited by the upper bracket; the main control circuit board is located between the lower support and the base.

Compared with the prior art, the invention has the beneficial effects that:

1. the self-return function after gear shifting is realized by a mode that the driving gear is meshed with the rack, so that the gear shifting control hand feeling can be improved;

2. the structural design of the gear component can facilitate the simplification of the structure, so that the integral structure of the monostable knob gear shifting device is simplified;

3. by adopting a structure with symmetrically arranged double racks, the gear shifting control hand feeling is clearer and more definite, and the gear shifting control hand feeling can be further improved;

4. the gear shifting device has the advantages that the integral structure of the gear component can be simplified and the integral volume of the gear component can be reduced by combining the rotating knob gear shifting structure and the pressing knob upper cover gear shifting structure, so that the monostable knob gear shifting device is more compact in integral structure, smaller in volume, lighter in weight, smaller in occupied space during installation and more convenient to install;

5. the driven gear, the magnet and the angle sensor are coaxially arranged, so that the monostable knob gear shifting device is better in detection precision, higher in gear shifting precision and better in controllability;

6. the adaptability is good, and the device is suitable for transmission fuel automobiles and new energy automobiles.

Drawings

FIG. 1 is a schematic structural view of a monostable knob shift of the invention;

FIG. 2 is an exploded view of the monostable knob shift of FIG. 1;

FIG. 3 is a top plan view of the monostable knob shift of FIG. 1;

FIG. 4 is a cross-sectional view in the direction A-A of the monostable knob shift of FIG. 3;

FIG. 5 is a cross-sectional view in the direction B-B of the monostable knob shift of FIG. 3;

FIG. 6 is a cross-sectional view of another perspective of the monostable knob shift device of FIG. 3;

FIG. 7 is an exploded view of a knob in the monostable knob shift of FIG. 2;

FIG. 8 is a cross-sectional view of a gear assembly in the monostable knob shift of FIG. 2;

FIG. 9 is a schematic illustration of the carrier in the gear assembly of FIG. 8;

FIG. 10 is a schematic view of the rack of the gear assembly of FIG. 8 from a first perspective;

FIG. 11 is a schematic view of the rack of the gear assembly of FIG. 8 from a second perspective;

FIG. 12 is a schematic view of the positioning post of the positioning assembly shown in FIG. 8;

fig. 13 is a schematic view of a driven gear in the monostable knob shift of fig. 2.

In the figure: 1. a housing; 11. a panel; 111. a main panel; 112. a subpanel; 1121. a first gear character; 12. an upper bracket; 13. a lower bracket; 14. a base; 2. a knob assembly; 21. a knob; 211. a through hole; 213. a flanging structure; 214. buckling; 22. a knob upper cover; 221. a second gear character; 222. an empty avoiding groove; 3. a main rotating body; 31. a driving gear; 32. a main connecting cylinder; 4. a light guide pillar; 5. a gear component; 51. a support; 511. a rack slot; 512. a stop groove; 513. a steady-state tank; 514. a guide hole; 52. a rack; 521. a guide post; 522. a stepped hole; 523. a spring plate structure; 524. a limiting block; 525. positioning a groove; 53. a first elastic member; 54. an elastic positioning member; 541. a positioning column; 5411. a guide portion; 5412. a limiting part; 5413. a positioning part; 55. a support end cap; 6. a slave rotating body; 61. a driven gear; 611. mounting grooves; 612. a positioning structure; 62. a magnetic field generator; 542. a second elastic member; 7. a main control circuit board; 71. an angle sensor; 72. a gear key; 8. a silica gel pad; 9. a wire harness; 10. and a secondary control circuit board.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Referring to fig. 1 to 5, a monostable knob shift device according to a preferred embodiment of the present invention is shown, and includes a housing 1, a knob assembly 2, a main rotor 3, a light guide 4, at least one set of gear assemblies 5, a sub-rotor 6, a main control circuit board 7, a silicone pad 8, a wire harness 9, and a sub-control circuit board 10.

In order to facilitate installation, referring to fig. 2 and 4, the housing 1 includes a panel 11, an upper bracket 12, a lower bracket 13, and a base 14, which are sequentially disposed; the panel 11 is used for fixing with the panel installation position on the automobile, the panel 11 is arranged on the top and is used for the knob component 2 to penetrate, the upper bracket 12 is preferably buckled on the base 14 in a buckling mode and can be fixedly connected with the base 14 through a screw, the lower bracket 13 is arranged between the upper bracket 12 and the base 14, and the lower bracket 13 is mainly used for supporting the main rotating body 3, the gear component 5 and the auxiliary rotating body 6.

Referring to fig. 2, in the present embodiment, the panel 11 preferably includes a main panel 111 having a through hole in the middle and a sub-panel 112 having a mounting hole in the middle, the main panel 111 is preferably mounted in the mounting hole of the sub-panel 112 by a snap-fit connection manner to achieve quick mounting between the main panel 111 and the sub-panel 112, the through hole of the main panel 111 is penetrated by the knob assembly 2, the top surface of the sub-panel 112 is configured with a first gear character 1121, such as the gear characters of R/N/D shown in fig. 3, wherein, to achieve gear display of the first gear character 1121, the sub-panel 112 is preferably made of a light-transmitting material, such as the sub-panel 112 can be made of a transparent plastic material or made by an IMD (i.e. in-mold coating process) process, so that light of the first gear display module on the sub-control circuit board 10 can be penetrated through the sub-panel 112, the gear visualization of the first gear character 1121 is realized, and a user can conveniently and visually see the current gear. Because the panel 11 is a separate structure (including the main panel 111 and the sub-panel 112), it is advantageous to reduce the manufacturing cost.

Referring to fig. 3 and 4, the knob assembly 2 is disposed on the panel 11 of the housing 1, and in the present embodiment, the knob assembly 2 includes a knob 21 and a knob upper cover 22 for easier operation and simplified structure.

As shown in fig. 7, the knob 21 is provided with a through hole 211 penetrating through the upper and lower ends thereof, the top of the knob 21 is provided with an annular flange 213, and the inner wall of the knob 21 is provided with a catch 214.

The top surface of knob upper cover 22 is configured with second gear position character 221, for example, the character of P gear shown in fig. 3, knob upper cover 22 is slidably mounted in through hole 211, so that it can slide up and down relative to knob 21, thereby the gear position key 72 on main control circuit board 7 can be triggered by pressing knob upper cover 22, so as to shift gears, so that when P gear (parking gear) can be switched more conveniently, the structure of gear component 5 can be simplified, the overall volume of gear component 5 is smaller, thereby the overall structure of the monostable knob gear shifting device is simplified and the structure is more compact, which is beneficial to miniaturization design, the occupied space is smaller, and the installation is more convenient.

With continued reference to fig. 7, as a preferred embodiment, in order to limit the upper knob cover 22 in the upward direction, the top of the knob 21 is provided with an inwardly extending annular flange structure 213, the upper knob cover 22 is located between the flange structure 213 and the upper end of the main rotating body 3, and the upper knob cover 22 is axially limited by the flange structure 213 and the main rotating body 3, so that the upper knob cover 22 can be reliably installed in the knob 21.

As a preferred embodiment, in order to enable the gear display of the second gear character 221, the knob upper cover 22 is made of a light-transmitting material, for example, a transparent plastic material or is formed by using an IMD (i.e., an in-mold coating process) process, so that light of the second gear display module on the main control circuit board 7 can be transmitted through the knob upper cover 22, thereby implementing the gear visualization of the second gear character 221, and facilitating the user to visually see the current gear.

With continued reference to fig. 7, as a preferred embodiment, the outer periphery of the knob upper cover 22 is formed with a clearance slot 222 penetrating the upper and lower ends thereof, and the clearance slot 222 can be passed by the catch 214 on the inner wall of the knob 21 to facilitate the mounting of the knob upper cover 22.

With continued reference to fig. 4 and 5, the main rotor 3 is connected to the knob 21 so as to be able to follow the rotation of the knob 21.

The main rotor 3 preferably includes a driving gear 31 and a main connecting cylinder 32 disposed on the driving gear 31, the driving gear 31 has an outer diameter larger than an outer diameter of the main connecting cylinder 32 so that the main rotor 3 can form a step surface, the driving gear 31 is rotatably mounted on a supporting cylinder of the lower bracket 13, the driving gear 31 is located between the upper bracket 12 and the lower bracket 13, specifically, the step surface of the main rotor 3 is attached to a boss of the upper bracket 12, a lower end surface of the driving gear 31 is attached to a boss of the lower bracket 13, the main rotor 3 is axially limited by the cooperation of the upper bracket 12 and the lower bracket 13, and the main connecting cylinder 32 penetrates the upper bracket 12 and is connected to the knob 21.

Specifically, the upper end of the main connecting cylinder 32 is provided with a plurality of snap grooves, which are engaged with the snap 214 on the inner wall of the knob 21, so as to achieve a quick and reliable connection between the main rotating body 3 and the knob 21.

Continuing to refer to fig. 4 and 5, light guide column 4 is slidably mounted in housing 1, specifically, light guide column 4 is located in main rotor 3, the first end of light guide column 4 is connected with the lower end of knob upper cover 22, the second end of light guide column 4 is connected with gear button 72 on main control circuit board 7, and the second gear display module is located right below the second end of light guide column 4, the configuration of light guide column 4 can conveniently realize the connection between knob upper cover 22 and gear button 72 on main control circuit board 7, and simultaneously, the gear display effect of second gear character 221 can be enhanced.

Referring to fig. 4, specifically, the first end of the light guide pillar 4 may be configured with an inverted buckle and a first positioning component, the lower end of the knob upper cover 22 is configured with an inverted buckle groove and a second positioning component, the inverted buckle is matched with the inverted buckle groove, and the first positioning component is matched with the second positioning component to realize circumferential limit therebetween; the support cylinder of the lower bracket 13 is provided with a slide hole, and the second end of the light guide pillar 4 passes through the slide hole and is slidably connected with the slide hole, so that the light guide pillar 4 can slide up and down relative to the lower bracket 13, and the gear key 72 on the main control circuit board 7 is triggered.

As a preferred embodiment, the peripheral wall of the light guide column 4 is provided with a guide groove extending along the vertical direction thereof, the inner wall of the support cylinder of the lower bracket 13 is provided with a guide convex strip, and the guide convex strip is matched with the guide groove, so that the light guide column 4 can be guided and the light guide column 4 can be circumferentially limited, thereby preventing the mutual rotation of the light guide column and the light guide column.

Referring to fig. 6 and 8, the gear assembly 5 is located between the upper bracket 12 and the lower bracket 13, the gear assembly 5 includes a support 51, a rack 52, a first elastic member 53 and an elastic positioning member 54, the support 51 is preferably a rectangular hollow structure, the support 51 is preferably fixedly disposed on the lower bracket 13 by a snap-fit connection, the support 51 is formed with a rack slot 511, a plurality of catch slots 512 communicated with the rack slot 511 and a stable slot 513, the plurality of catch slots 512 and the stable slot 513 are sequentially disposed along a length direction of the support 51, the stable slot 513 is located in the middle of the plurality of catch slots 512, the rack 52 is slidably mounted in the rack slot 511, the rack 52 is engaged with the pinion 31, the first elastic member 53 is disposed between the support 51 and an end of the rack 52, the first elastic member 53 is used for providing an elastic force for returning the rack 52, the elastic positioning member 54 is disposed on the rack 52, and the elastic positioning component 54 can be switched between being matched with the gear groove 512 or being matched with the stable groove 513, and can be matched with the stable groove 513 under the reset action of the rack 52, so that the automatic reset to the stable position can be realized after the knob 21 is shifted every time.

Thus, under the driving of the driving gear 31, the rack 52 slides in the rack slot 511, and simultaneously drives the elastic positioning component 54 to switch between being matched with the stable slot 513 or being matched with the corresponding stop slot 512, so as to generate an operation hand feeling, because the first elastic component 53 is compressed and the stable slot 513 is located in the middle of the stop slots 512, after the knob 21 is loosened, the rack 52 can be reset to an original position under the elastic force action of the first elastic component 53, so that the elastic positioning component 54 is reset to be matched with the stable slot 513, and simultaneously, the knob 21 is driven to reset.

It can be understood that the gears of the plurality of gear slots 512 correspond to the first gear characters 1121 one by one, for example, the plurality of gear slots 512 include two N gear slots adjacent to the stable slot 513, and a D gear slot and an R gear slot located at two ends of the two N gear slots.

In order to further improve the handling feeling, as a preferred embodiment, two sets of gear assemblies 5 are configured, the two sets of gear assemblies 5 are respectively disposed on two opposite sides of the driving gear 31, and the racks 52 in the two sets of gear assemblies 5 are respectively meshed with two opposite sides of the driving gear 31.

Specifically, guide holes 514 communicated with the rack grooves 511 are formed in both ends of the support 51, the hole diameter of each guide hole 514 is smaller than the groove width of the rack groove 511, guide posts 521 are arranged at both ends of the rack 52, the guide posts 521 are slidably matched with the guide holes 514, and the first elastic member 53 is sleeved on the guide posts 521, so that the rack 52 can be well supported, the guide effect of the rack 52 can be improved, and the rack 52 can slide more smoothly.

With continued reference to fig. 8 and 9, to facilitate the installation of the rack 52 and the first elastic member 53, as a preferred embodiment, the gear assembly 5 further includes a holder cover 55, one end of the rack slot 511 penetrates through a first end of the holder 51, the holder cover 55 is disposed at the first end of the holder 51 by a snap-fit manner, and one of the guide holes 514 of the holder 51 is disposed on the holder cover 55, i.e., the first end of the holder 51 is an open structure, and a second end of the holder 51 is a semi-closed structure disposed with the guide hole 514, so that when the rack 52 and the first elastic member 53 are installed, the rack 52 and the first elastic member 53 can be inserted from the first end of the holder 51, so that the rack 52 and the first elastic member 53 can be installed in the rack slot 511, and then the holder cover 55 is disposed at the second end of the holder 51 by a snap-fit manner or a screw-fit manner, the installation is convenient.

In a preferred embodiment, the side of the carrier 51 is opened with an escape groove communicating with the rack groove 511, and the escape groove is used for allowing the teeth of the driving gear 31 to protrude and engage with the teeth of the rack 52.

Referring to fig. 8, 10 and 11, as a preferred embodiment, a stepped hole 522 penetrating through the upper and lower ends of the rack 52 is formed in the middle of the rack 52, the stepped hole 522 includes a small aperture end and a large aperture end which are sequentially arranged from top to bottom, the elastic positioning component 54 includes a positioning post 541 and a second elastic component 542, specifically, as shown in fig. 12, the positioning post 541 includes a guide portion 5411, a limiting portion 5412 and a positioning portion 5413 which are sequentially connected, the guide portion 5411 is adapted to the small aperture end and slidably engaged with the small aperture end, the second elastic component 542 is sleeved on the guide portion 5411 and located between the positioning groove 525 and the limiting portion 5412 of the rack 52, the limiting portion 5412 is adapted to the large aperture end and slidably engaged with the large aperture end, and the positioning portion 5413 can be engaged with the blocking groove 512 or engaged with the stable groove 513, so that the positioning post 541 is limited in the upward direction by the engagement between the limiting portion 5412 and the stepped surface of the stepped hole 522, the positioning post 541 is limited in the downward direction by the matching between the limiting portion 5412 and the bottom wall of the rack slot 511, so that the positioning post 541 is reliably mounted, the positioning post 541 is elastically supported by the second elastic member 542, the positioning portion 5413 can be switched between being retracted into the stepped hole 522 or extending out of the stepped hole 522, and the positioning portion 5413 can be switched between being matched with the stable-state slot 513 or being matched with the blocking slot 512.

It is understood that the first elastic member 53 and the second elastic member 542 are preferably springs, but may be elastic sheets.

In a preferred embodiment, the rack 52 is further provided with a first oil groove and a second oil groove for storing lubricating oil; the first oil groove is configured on the hole wall of the stepped hole 522, so that a sliding friction pair between the elastic positioning component 54 and the stepped hole 522 can be improved, and the elastic positioning component 54 can slide more smoothly; the second oil groove is preferably disposed on a side surface of the rack 52 opposite to the teeth of the rack 52, so that a sliding friction pair between the rack 52 and the rack groove 511 can be improved and the rack 52 can slide more smoothly.

Referring to fig. 10, in order to prevent the elastic positioning member 54 from freely falling off the rack 52, as a preferred embodiment, a spring structure 523 is disposed on a side of the rack 52 away from the small end of the aperture, and a limit boss is disposed at an end of the spring structure 523 and can abut against a lower end of the limit portion 5412 to limit the downward limit displacement of the positioning post 541. The elastic sheet structure 523 has elasticity, so that when the elastic positioning part 54 is installed, the limiting boss can be driven to be away from the stepped hole 522, and after the installation is finished, the limiting boss is driven to be close to the stepped hole 522, so that the elastic positioning part 54 is conveniently installed.

With continued reference to fig. 11, as a preferred embodiment, a limit block 524 is disposed on a side of the rack 52 near the small end of the aperture, and the limit block 524 can abut against a sidewall of the escape groove of the support 51, so as to prevent the sliding displacement of the rack 52 from exceeding the range of gear detection in the D/R gear, and improve the gear shifting reliability.

Referring to fig. 4 to 6, the slave rotor 6 is rotatably mounted in the housing 1, specifically, the slave rotor 6 is rotatably mounted in a hole of the lower bracket 13, the slave rotor 6 is located between the upper bracket 12 and the lower bracket 13, the slave rotor 6 can abut against a cross positioning member on the upper bracket 12 to realize axial position limitation and avoid separation from the hole between the rotor 6 and the lower bracket 13, the slave rotor 6 is provided with a driven gear 61 and a signal generating unit arranged in a mounting groove 611 of the driven gear 61, the driven gear 61 is engaged with the driving gear 31, the signal generating unit is used for generating angle information, and the signal generating unit is matched with a signal sensing unit on the main control circuit board 7.

During gear shifting, the knob 21 is rotated to drive the driving gear 31, the driving gear 31 drives the rack 52 and the driven gear 61, the signal generating unit generates different angle information according to the knob 21, the signal sensing unit receives the angle information generated by the signal generating unit, the main control circuit board 7 judges the gear shifting requirement of a user according to the angle information, the gear shifting requirement is sent to the automobile gear shifting controller, and the automobile gear shifting controller controls the automobile gear shifting actuator to realize gear shifting.

In a preferred embodiment, the driven gear 61, the signal generating unit and the signal sensing unit are coaxial.

In a preferred embodiment, the signal generating unit is a magnetic field generator 62, such as a magnet made of a wet ferrite permanent magnetic material, the magnetization direction of the magnet is radial magnetization, the signal sensing unit is an angle sensor 71, such as a hall sensor, and the angle sensor 71 is in contactless connection with the magnetic field generator 62.

Referring to fig. 13, in order to accurately mount the magnets and ensure uniformity of the mounting direction of the magnets of each monostable knob shift device, the magnets are rectangular, the driven gear 61 is provided with a positioning structure 612, the positioning structure 612 faces a certain set direction of the monostable knob shift device, and the N pole of the magnets faces the positioning structure 612. Specifically, the positioning structure 612 may be a positioning notch or a positioning plane.

The main control circuit board 7 is provided with a gear button 72, a second gear display module (not shown), a signal sensing unit (also an angle sensor 71) and a plurality of wiring harness slots, a first end of a wiring harness 9 is connected with one wiring harness slot on the main control circuit board 7, a second end of the wiring harness 9 is connected with the wiring harness slot on the auxiliary control circuit board 10, and the other wiring harness slots on the main control circuit board 7 are used for being connected with an automobile wiring harness and used for performing gear signal interaction with an automobile.

The main control circuit board 7 is arranged in the base 14 and located between the lower support 13 and the base 14, the top of the main control circuit board 7 is coated with the silica gel pad 8, and the silica gel pad 8 is arranged on the main control circuit board 7, so that the pressing hand feeling of the knob upper cover 22 can be improved, and meanwhile, the dustproof and waterproof effects can be achieved.

The sub-control circuit board 10 is disposed below the sub-panel 112, and the sub-control circuit board 10 is disposed with a first gear display module, wherein the first gear display module and the second gear display module can be Mini-LED display modules.

The operating principle of the monostable knob gear shifting device is as follows:

D/N/R gear shifting:

the driver operates the knob 21 according to the gear-shifting intention, the knob 21 drives the main rotor 3 to rotate around the axis thereof, the driving gear 31 on the main rotor 3 drives the rack 52 to move to the designated gear groove 512, meanwhile, the driving gear 31 on the main rotor 3 drives the driven gear 61 on the auxiliary rotor 6 and the magnet to rotate together, the angle sensor 71 on the main control circuit board 7 detects the position of the magnet (namely the position of the knob 21) in real time and transmits a position signal to the automobile gear-shifting controller of the automobile, the automobile gear-shifting controller controls the automobile gear-shifting actuator to perform corresponding gear-shifting action according to the gear-shifting intention of the driver, in the process, the rack 52 compresses the first elastic component 53 while sliding, when the driver releases the knob 21, the rack 52 is reset to the steady-state position under the thrust of the first elastic component 53, in the process of the movement of the rack 52, the positioning post 541 can perform telescopic motion under the action of the second elastic component 542, and a gear shifting hand feeling is generated when the positioning portion 5413 of the positioning post 541 enters the gear shifting groove 512;

p-gear shifting:

the driver presses knob upper cover 22, knob upper cover 22 promotes leaded light post 4 downstream, leaded light post 4 oppresses silica gel pad 8 until triggering fender position button 72 on the main control circuit board 7, the wick that the second kept off the position display module assembly this moment is lighted, light passes through leaded light post 4 diffusion to knob upper cover 22, P keeps off the character and is lighted, and simultaneously, main control circuit board 7 keeps off signal transmission to car shift controller with P, car shift controller goes to control car shift actuator according to driver's the intention of shifting and makes corresponding action of shifting, realize that P keeps off and shift.

The monostable knob gear shifting device has the following advantages:

1. the self-return function after gear shifting is realized by the way that the driving gear 31 is meshed with the rack 52, so that the gear shifting control hand feeling can be improved;

2. the structural design of the gear component 5 can facilitate the simplification of the structure, so that the overall structure of the monostable knob gear shifting device is simplified;

3. by adopting the structure that the double racks 52 are symmetrically arranged, the gear shifting control hand feeling is clearer and more definite, and the gear shifting control hand feeling can be further improved;

4. by combining the gear shifting structure of the rotary knob 21 and the gear shifting structure of the upper cover 22 of the pressing knob, the overall structure of the gear component 5 can be simplified, and the overall volume of the gear component 5 can be reduced, so that the monostable knob gear shifting device is more compact in overall structure, smaller in volume, lighter in weight, smaller in occupied space during installation, and more convenient to install;

5. the driven gear 61, the magnet and the angle sensor 71 are coaxially arranged, so that the monostable knob gear shifting device is better in detection precision, higher in gear shifting precision and better in controllability;

6. the adaptability is good, and the device is suitable for transmission fuel automobiles and new energy automobiles.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.