CN214661953U - Electronic gear shifter - Google Patents

Abstract

The utility model discloses an electronic gear shifter, which comprises an upper shell, a lower shell, a magnet, a gear lever, a spherical bushing, a pressing plate, a reset spring, a gear pin and a circuit board; the gear shifting rod is fixed in the upper shell through a spherical bushing and a pressure plate, the upper half spherical surface of the gear shifting rod is in sliding friction connection with the upper shell, and the lower half spherical surface of the gear shifting rod is in sliding friction connection with the spherical bushing; the upper end of the gear shift lever extends out of the upper shell to be connected with a handle, the lower end of the gear shift lever is connected with a gear pin, and the head of the gear pin is in sliding connection with an automatic gear shifting tooth-shaped groove and a manual gear shifting tooth-shaped groove of the lower shell; magnet and gear level pass through the rubber coating layer and are connected as an organic wholely, and magnet is connected with the 3D hall sensor response of circuit board. The utility model discloses reduced the quantity that the part was constituteed to the electron selector, reduced the free gap of selector, alleviateed the weight and the noise of selector, optimized the conversion precision of signal, promoted smooth-going sense and comfort level and the fail safe nature of the operation of shifting.

Description

Electronic gear shifter

Technical Field

The utility model relates to an automobile gear shifter technical field, concretely relates to electron selector.

Background

Along with the rapid development of network technology, the intelligent driving technology is more and more mature, the conventional gear shifter has large volume, heavy weight and few safe integrated modules, so that the requirements of light weight and intelligent development of the whole vehicle cannot be met, and the electronic gear shifter becomes the first choice of various current domestic and foreign automobile manufacturers.

Chinese patent CN112096850A discloses an automobile gear signal structural member and an electronic gear shifter, wherein the electronic gear shifter comprises a housing, a gear shift lever assembly, a tooth-shaped groove and a gear shift signal structural member; the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell enclose a space for accommodating the gear shift rod assembly, the tooth-shaped groove and the gear shift signal structure assembly; the tooth-shaped groove is arranged at the bottom of the lower shell, and a gear shifting tooth shape is arranged in the tooth-shaped groove; the gear shifting rod assembly comprises a gear shifting rod, a spherical bushing, a gear shifting pin and a gear shifting spring, the gear shifting pin is arranged in a cavity at the lower end of the gear shifting rod through the gear shifting spring, the spherical bushing surrounds a spherical bulge of the gear shifting rod, the gear shifting rod is rotatably fixed in an upper opening of an upper shell through the spherical bushing, the upper end of the gear shifting rod extends out of the upper shell and is used for connecting a handle, and the lower end of the gear shifting rod extends out of the lower shell and is in sliding contact with a gear shifting tooth shape in a tooth-shaped groove; the gear shifting signal structure component is arranged on the side walls of the upper shell and the lower shell and used for outputting gear signals to enable the gear shifting rod to be switched at different gears.

The prior electronic gear shifter has the following technical problems:

1. the gear shifter has the advantages that the number of components is large, and the accumulated assembly error is large, so that the free clearance of the gear shifter is large;

2. the structural design of parts is unreasonable, so that the free clearance of the gear shifter is large;

3. the gear signal part has a complex structure.

The large free gap of the gear shifter easily causes the false triggering of a gear shifting signal, thereby causing the safety accident of the gear shifting of the whole vehicle; and the driver can obviously feel the jumping and clamping feeling of gears in the gear shifting process, so that the comfortable feeling of the whole vehicle driving is influenced. The gear shifter has the advantages that the gear shifter is multiple in component parts, a gear signal part is complex in structure, accumulated errors of assembly of parts are large, signal accuracy is low, manufacturing cost of the electronic gear shifter is increased, weight of the electronic gear shifter is increased, and gear shifting comfort of an operator is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an electron selector.

The utility model adopts the technical proposal that:

an electronic gear shifter comprises an upper shell, a lower shell, a magnet, a gear shifting rod, a spherical bushing, a pressing plate, a reset spring, a gear pin and a circuit board, wherein the magnet, the gear shifting rod, the spherical bushing, the pressing plate, the reset spring, the gear pin and the circuit board are arranged in a cavity surrounded by the upper shell and the lower shell; the upper shell is detachably connected with the lower shell, an upper opening is formed in the top of the upper shell, a hemispherical cavity communicated with the upper opening is formed in the upper shell, U-shaped clamping grooves are formed in two ends of the hemispherical cavity, and an automatic gear shifting tooth-shaped groove and a manual gear shifting tooth-shaped groove are formed in the bottom of the inner wall of the lower shell; the middle part of the gear shift lever is provided with a spherical bulge, two ends of the spherical bulge are provided with positioning columns, the lower end of the gear shift lever is provided with a gear pin installation cavity, and the surface of the gear shift lever is integrally coated with a soft rubber layer; the gear shifting rod is movably fixed in the hemispherical cavity of the upper shell through the spherical bushing and the pressing plate, the two positioning columns are rotatably supported in the two U-shaped grooves of the upper shell, the upper half spherical surface of the spherical bulge of the gear shifting rod is in sliding friction connection with the inner side wall of the hemispherical cavity of the upper shell, and the lower half spherical surface of the spherical bulge of the gear shifting rod is in sliding friction connection with the inner side wall of the spherical bushing; the spherical bushing is an elastic deformable body and is clamped on the upper shell through an opening of the spherical bushing, the lower end of the spherical bushing abuts against the upper end of the pressing plate, and the pressing plate is in threaded connection with the upper shell; the tail part of the gear pin is sleeved with a return spring, the gear pin is slidably arranged in a gear pin mounting cavity of the gear lever through the return spring, the upper end of the gear lever extends out of an upper opening of the upper shell to be connected with a handle, and the head part of the gear pin extends out of the bottom of the gear lever to be in sliding connection with an automatic gear shifting tooth-shaped groove and a manual gear shifting tooth-shaped groove of the lower shell; the magnet and the gear shifting rod are connected into a whole through an adhesive coating layer, and a 3D Hall sensor is arranged on the circuit board; the 3D Hall sensor detects the position of the magnet and induces the deflection of the magnetic field, so that a gear signal is output, and the control circuit board is kept on the automatic gear circuit.

Furthermore, one end of the gear shifting rod extending out of the upper shell is sleeved with a dust cover, the dust cover is in a ball bowl shape, and an opening of the dust cover is downwards covered on the outer wall of the upper end of the upper shell.

Further, the spherical bush is made by flexible plastic, is equipped with inside wall and lateral wall, the inside wall be equipped with the spherical face of the protruding adaptation of sphere of gear level, the lateral wall be equipped with the outer periphery of last casing adaptation, the lower extreme and the lateral wall of inside wall do not connect with, the side of spherical bush is equipped with the opening, the opening runs through inside wall and lateral wall.

Further, the pressure plate comprises a pressure plate body made of metal material, and the central part of the pressure plate body protrudes outwards to form a cylindrical supporting part; the central part of the cylindrical supporting part is provided with a central through hole matched with the gear shift lever, the surface of the pressure plate body and the inner wall of the central through hole are coated with soft rubber layers, the soft rubber layers on the end surfaces of the cylindrical supporting part are wavy, and the wavy soft rubber layers are connected with the lower end surface of the spherical bushing; a plurality of rectangular bulges are uniformly distributed on the soft rubber layer of the central through hole and are connected with the outer circumferential surface of the gear shift lever.

Furthermore, the upper shell is made of nylon materials, a plurality of arc bulges are uniformly distributed on the surface of the inner sphere of the hemispherical cavity of the upper shell, and the arc bulges extend along the inner sphere bus of the hemispherical cavity.

Furthermore, the circuit board is of a concave structure, and the upper end, the middle end and the lower end of the circuit board are respectively connected with the upper shell, the pressing plate and the lower shell in a clamping manner.

Furthermore, a first clamping piece is arranged on the outer side of the automatic gear shifting tooth-shaped groove of the lower shell and used for limiting the gear shifting rod in the automatic gear shifting tooth-shaped groove; the outside in the manual fender tooth-shaped groove of shifting of casing is equipped with the second card and holds the piece down, and the second card is held the piece and is used for keeping off the gear level restriction in manual fender tooth-shaped groove of shifting.

Furthermore, the bottom wall of the lower shell is provided with a stop block, the stop block is positioned on the front side and the rear side of the automatic gear shifting tooth-shaped groove, two ox horn-shaped protrusions are symmetrically arranged on the gear shift lever, and the ox horn-shaped protrusions are matched with the stop block to limit the gear shift lever to slide back and forth in the manual gear shifting tooth-shaped groove.

Furthermore, a soft rubber layer is arranged on the inner side wall of a gear pin installation cavity of the gear shift lever; the intermediate part of fender position round pin radially outwards extrudes and forms coniform arch, and the block is fixed with the opening grommet on the coniform arch, and the up end of opening grommet supports and leans on reset spring's lower terminal surface, and the lateral wall of opening grommet is connected with the soft rubber layer of the inside wall of the fender position round pin installation cavity of gear level.

Furthermore, the lower shell is made of POM plastic, the head of the gear pin is spherical, and the spherical head is in sliding connection with the automatic gear shifting tooth-shaped groove and the manual gear shifting tooth-shaped groove.

The utility model has the advantages that:

1. compared with the existing electronic gear shifter, the electronic gear shifter of the utility model simplifies the structural design of the gear signal part, and replaces the existing rotary Hall sensor and the existing switch Hall sensor with a 3D Hall sensor, thereby reducing the number of magnets, the rotary magnet seat part for mounting the magnets and the fixed bracket matched with the rotary magnet seat part; the structural design of the lower shell is simplified, the gear shifting tooth-shaped groove is directly machined on the lower shell, and mounting parts are reduced. The utility model discloses reduced the quantity that the part was constituteed to the electron selector, reduced part assembly error for the free gap of selector can reduce, and weight can alleviate, effectively avoids the noise problem that the signal trigger that brings because of the clearance unusual and the mechanism motion produces, promotes smooth-going sense of shifting, thereby obtains good manipulation travelling comfort.

2. The utility model discloses a gear level of rubber coating structure, the spherical arch of gear level is connected with last casing through elastic deformable's spherical bush and clamp plate, and the rubber coating layer of gear level can extrude pressure deformation, cooperates with spherical bush, and the smooth operation when having guaranteed promptly to shift has reduced the free clearance between gear level and the last casing again, the guarantee safety of shifting.

3. The design of dust cover can prevent effectively that the dust from getting into inside the selector casing.

4. The spherical bush and the pressing plate are matched to replace the existing spherical bush, and the hemispherical opening bush is fixedly installed through the pressing plate, so that the installation and the disassembly are convenient; the gear level passes through hemisphere opening bush and the clamp plate is fixed in last casing, and its opening opens and produces elastic deformation after hemisphere opening bush pressurized for the free clearance between compensation gear level and the last casing, hemisphere opening bush produces elastic deformation through its side opening, and resistant intensity is high, long service life, and hemisphere bush is higher with the self-adaptation degree of fit of gear level. Elastic deformation can be realized to spherical bush itself, improves the smoothness of the operation of shifting with the rubber coating layer cooperation of gear level and reduces the free clearance between gear level and the last casing simultaneously, the guarantee safety of shifting.

5. Due to the structural design of the pressing plate, on one hand, the mounting strength of the spherical bushing and the gear shift lever is improved, on the other hand, the assembling precision of the gear shift lever, the upper shell and the spherical bushing is further improved through the pressing force of the pressing plate and the deformability of the end face of the pressing plate, and the free gap is reduced.

6. The bottom of the lower shell is provided with a clamping piece and a stop block, and the clamping piece and the stop block limit the gear lever in the automatic gear shifting tooth-shaped groove during gear shifting operation, so that safety accidents caused by the fact that the gear lever jumps out of the automatic gear shifting tooth-shaped groove due to misoperation or too violent gear shifting force are prevented.

7. Due to the design of the split bushing ring of the gear pin, on one hand, the gear pin can generate elastic deformation so as to reduce the free gap between the gear pin and the gear shifting lever, on the other hand, the service life of the gear pin can be prolonged by replacing the split bushing ring, and the maintenance frequency of the electronic gear shifter is reduced. The design of keeping off position round pin bulb structure makes the contact of keeping off position round pin and tooth form groove sphere, effectively reduces the jumping nature that the process of shifting appears, reduces the noise that the in-process of shifting produced, guarantees the travelling comfort of shifting.

8. The structural design of the circuit board and the improvement of the installation mode reduce installation parts, so that the circuit board is more convenient to disassemble and install, the working efficiency is improved, the weight of the whole electronic gear shifter is reduced, and the light weight of the electronic gear shifter is realized.

Drawings

Fig. 1 is an exploded schematic view of the electronic shifter of the present invention.

Fig. 2 is an assembly structure diagram of the electronic shifter of the present invention.

Fig. 3 is a schematic structural diagram of the upper housing of the electronic shifter of the present invention.

Fig. 4 is a schematic structural diagram of a lower housing of the electronic shifter of the present invention.

Fig. 5 is a schematic structural view of a shift lever of the electronic shifter of the present invention.

Fig. 6 is a schematic structural view of a shift pin assembly of the electronic shifter of the present invention.

Fig. 7 is a schematic structural view of a spherical bushing of the electronic shifter of the present invention.

Fig. 8 is a schematic structural diagram of a pressing plate of the electronic shifter of the present invention.

Detailed Description

For a better understanding of the present invention, the following examples are provided to further illustrate the present invention, but the present invention is not limited to the following examples.

Referring to fig. 1 to 8, the present embodiment provides an electronic shifter, which includes a shift lever 1, a wire harness 2, a magnet 3, a dust cover 4, an upper housing 5, a spherical bushing 6, a metal bushing ring 7, a pressing plate 8, a return spring 9, an opening bushing ring 10, a shift pin 11, a circuit board 12, and a lower housing 13.

The upper shell 5 is detachably connected with the lower shell 13, the top of the upper shell is provided with an upper opening 52, the upper shell is internally provided with a hemispherical cavity 513 communicated with the upper opening, two ends of the hemispherical cavity are provided with U-shaped clamping grooves 516, and the bottom of the inner wall of the lower shell is provided with an automatic gear shifting tooth-shaped groove 134 and a manual gear shifting tooth-shaped groove 135;

the middle part of the gear shift lever 1 is provided with a spherical bulge 101, two ends of the spherical bulge are provided with positioning columns 102, the lower end of the gear shift lever is provided with a gear pin installation cavity 103, and the surface of the gear shift lever is integrally coated with a soft rubber layer; the gear shifting rod 1 is movably fixed in the hemispherical cavity 513 of the upper shell through a spherical bushing 6 and a pressure plate 8, the two positioning columns 102 are rotatably supported in the two U-shaped grooves of the upper shell, the upper half spherical surface of the spherical bulge of the gear shifting rod is in sliding friction connection with the inner side wall of the hemispherical cavity of the upper shell, and the lower half spherical surface of the spherical bulge of the gear shifting rod is in sliding friction connection with the inner side wall of the spherical bushing; the spherical bushing 6 is an elastic deformable body and is clamped on the upper shell 5 through an opening of the spherical bushing, the lower end of the spherical bushing 6 abuts against the upper end of the pressing plate 7, and the pressing plate 7 is in threaded connection with the upper shell;

the tail part 113 of the gear pin 11 is sleeved with a return spring 9, the gear pin 11 is slidably arranged in a gear pin mounting cavity 103 of the gear lever through the return spring 9, the upper end of the gear lever 1 extends out of an upper opening 52 of the upper shell to be connected with a handle, and the head part 114 of the gear pin 11 extends out of the bottom of the gear lever 1 to be slidably connected with an automatic gear shifting tooth-shaped groove 134 and a manual gear shifting tooth-shaped groove 135 of the lower shell;

one end of the gear shifting lever extending out of the upper shell is sleeved with a spherical bowl-shaped dust cover 4, and the opening of the dust cover is covered on the outer wall of the upper end of the upper shell downwards;

the magnet 3 and the gear level 1 are connected into a whole through the rubber coating, the upper end, the middle end and the lower end of the circuit board 12 are respectively clamped on the upper shell, the pressing plate and the lower shell, and the circuit board 12 is provided with a 3D Hall sensor; the 3D Hall sensor detects the position of the magnet and induces the deflection of the magnetic field, so that a gear signal is output, and the control circuit board is kept on the automatic gear circuit.

The structure and connection of the components are described in detail below.

Referring to fig. 3, the upper housing 5 is rectangular and has a top wall, four side walls, an upper side wall, a lower side wall, a left side wall, a right side wall, and an open bottom. Go up the casing roof and be equipped with upper shed 52, it is equipped with fusiform installation department 51 to go up casing roof medial surface, the center of fusiform installation department is equipped with hemisphere cavity 513, the tip of hemisphere cavity 513 communicates with each other with upper shed 52, the upper and lower both sides of the main aspects terminal surface of hemisphere cavity 513 are equipped with U-shaped draw-in groove 516, the main aspects terminal surface that the left and right sides wall of upper end U-shaped draw-in groove upwards salient hemisphere cavity 513 forms the clamping part, be favorable to improving the centre gripping dynamics to the gear-changing pole, make it not produce when rotating in U-shaped draw-in groove 516 and move. The clamping piece 517 is arranged on the outer side of the left side wall and the outer side of the right side wall of the U-shaped clamping groove, a distance is formed between the clamping piece 517 and the side wall of the U-shaped clamping groove, the clamping piece 517 is used for clamping the spherical lining, and the distance can enable the clamping piece 57 to deform under stress without blocking the deformation of the spherical lining. Three arc protrusions 5131 extending along the inner ball generatrix of the hemispherical cavity are uniformly distributed on the inner side wall of the hemispherical cavity 513.

The periphery of the big end of the hemispherical cavity 513 is provided with a cylindrical cavity 512, the upper side and the lower side of the end surface 511 of the free end of the cylindrical cavity 512 are symmetrically provided with two support lugs, a threaded hole 514 is arranged in each support lug, and a cylindrical positioning pin 515 is arranged beside the threaded hole. The spindle-shaped mounting portion 51 is configured for mounting a shift lever. An annular mounting plane 518 is arranged between the cylindrical cavity 512 and the hemispherical cavity 513, and the mounting plane 518 is matched with the upper end face of the spherical lining 6.

The periphery of fusiform installation department 51 is equipped with four cylindrical erection columns, is equipped with screw hole 53 in the cylindrical erection column, and four cylindrical erection columns are equipped with the installation muscle that is used for connecting the lower casing all around, and the installation muscle of the left and right sides leads to long and its middle part is equipped with bayonet 59. The end faces of the mounting ribs are coplanar and lower than the four side walls of the upper shell. The middle part of the upper side wall of the upper shell protrudes outwards to form an arc bulge 57, and the middle part of the lower side wall of the upper shell is provided with a rectangular groove 56.

A circuit board installation cavity is arranged on one side of the periphery of the spindle-shaped installation part 51 close to the rectangular groove 56, and two circuit board clamping parts 581 and two circuit board positioning parts 582 are symmetrically arranged in the circuit board installation cavity. The circuit board fastener 581 is a U-shaped fastener, and the opening width of the U-shaped fastener is matched with the thickness of the circuit board; the circuit board positioning element 582 is a rectangular positioning column, which is located between the two circuit board fasteners 581 and close to the circuit board fasteners 581, the head of the rectangular positioning column is provided with an inclined surface, the connection surface of the two positioning columns is located between the openings of the circuit board fasteners 581, the circuit board is fastened and clamped in the two circuit board fasteners 581 by the deformation of the positioning columns, and the inclined surface of the head of the positioning columns is used for guiding. The upper end of the circuit board 12 is engaged with the circuit board engaging member 581.

Four corners of the upper shell 5 are provided with circular mounting holes 54, four positioning ribs 541 extending along the axial direction are uniformly distributed on the hollow inner wall of the circular mounting holes 54, and a cross-shaped bulge 55 is arranged between two adjacent circular mounting holes 54; the round mounting hole 54 and the cross-shaped protrusion 55 are designed for mounting the electronic gear shifter, the electronic gear shifter is fixed on the whole vehicle by penetrating a screw into the round mounting hole 54, in order to strengthen the structure of the mounting hole, a metal lining ring 7 is embedded in the round mounting hole 54, and the connection strength of the metal lining ring 7 and the round mounting hole 54 is enhanced by the deformation of the positioning ribs 541; the cross-shaped projection 55 is used for positioning and guiding during installation.

In this embodiment, the upper housing is made of nylon, and the respective clamping members and positioning members in the upper housing are integrally formed with the upper housing.

Referring to fig. 4, the lower housing 13 has a bottom wall, a stepped surface is provided on the inner side of the bottom wall, the small stepped surface 1312 is engaged with the end surface of the upper housing mounting rib, and the large stepped surface 1311 is engaged with the end surfaces of the four side walls of the upper housing. The small step surface 1312 is provided with counter bores 133 which are matched with the cylindrical mounting columns of the upper shell one by one, and the bottom surfaces of the counter bores 133 are provided with through holes. A rectangular protrusion 132 matched with the rectangular groove 56 of the upper shell is arranged between two adjacent counter bores on the upper side of the lower shell 13, and an arc-shaped groove 131 matched with the arc protrusion 57 of the upper shell is arranged on the side wall of the shell between two adjacent counter bores on the lower side of the lower shell 13. The middle parts of the left and right side surfaces of the large step surface 1311 are provided with protrusions which are matched with the upper shell bayonet 59. The upper shell 5 and the lower shell 13 are fastened together by screws inserted into the threaded holes 53.

One side of the lower shell small step surface 1312 close to the arc-shaped groove 131 is provided with a rectangular groove 1313, the groove is internally provided with an automatic gear shifting tooth-shaped groove 134 and a manual gear shifting tooth-shaped groove 135, two L-shaped columnar first clamping parts 137 are arranged on the outer side of the automatic gear shifting tooth-shaped groove 134, the two first clamping parts 137 are symmetrically arranged, one ends of the two first clamping parts are fixed on the side wall of the rectangular groove 1313, two free ends of the two first clamping parts are opposite and provided with intervals, bayonets are formed at the intervals, and the bayonets are matched with the lower end columns of the gear levers. Two L-shaped cylindrical second clamping pieces 136 are arranged on the outer side of the manual gear shifting tooth-shaped groove 135, the two second clamping pieces 136 are symmetrically arranged, and the second clamping pieces 136 are the same as the first clamping pieces in structure. The other side of automatic gearshift tooth 134 is provided with a stopper 138 formed by the inner side wall of the rectangular groove 1313 protruding radially outward.

One side that the inboard rectangle arch 132 that is close to of lower casing diapire is equipped with the circuit board installation cavity, is equipped with three fastener 1310 in the circuit board installation cavity, be equipped with on the fastener 1310 with the bayonet socket of circuit board thickness adaptation, the circuit board lower extreme card is established in the bayonet socket.

In this embodiment, the lower housing is made of POM plastic, and the locking members and the positioning members are integrally formed with the lower housing.

Referring to fig. 5, the shift lever 1 includes a shift lever body made of a metal material, a spherical protrusion 101 is disposed at a middle portion of the shift lever body, central portions of left and right ends of the spherical protrusion respectively protrude radially outward to form positioning pillars 102, and the spherical protrusion 101 and the positioning pillars 102 at two ends thereof form a cross-pin universal joint structure. The upper end of the gear shifting rod body is in a rod shape, the lower end of the gear shifting rod body is in a cylindrical shape, a stepped blind hole is axially formed in the cylinder at the lower end of the gear shifting rod, the lower end of a large round hole of the stepped blind hole penetrates through the bottom surface of the gear shifting rod, the upper end of a small round hole extends upwards to the inside of the spherical bulge 101, and a retaining shoulder is arranged between every two adjacent round holes; the stepped blind hole forms a gear pin mounting cavity 103 for mounting the gear pin 11. The cylindrical peripheral surface of the lower end of the gear shift lever is provided with two symmetrical oxhorn-shaped protrusions 104, two clamping blocks 105 are arranged below the oxhorn-shaped protrusions 104, the two clamping blocks and the two oxhorn-shaped protrusions are arranged in a cross mode, the clamping blocks 105 are respectively matched with bayonets of a first clamping piece 137 and a second clamping piece 136 of the lower shell, and the two oxhorn-shaped protrusions 104 are matched with a clamping block 138 of the lower shell. The outer surface of the gear shift lever body is integrally coated with a soft rubber layer, and the inner side wall of the large-diameter round hole is lined with a soft rubber layer 106, which is made of a silica gel material in the embodiment.

Magnet 3 inlays in the cylindrical outer circumferencial face of gear level 1 lower extreme, is connected as an organic whole through the rubber coating layer with gear level 1.

Referring to fig. 6 and 2, the return spring 9, the split bushing ring 10 and the shift pin 11 form a shift pin assembly, the shift pin 11 is in a stepped cylinder shape with a large middle and small ends, the outer diameter of the middle large-diameter cylindrical portion 111 is matched with the inner diameter of the soft rubber layer 106 of the shift lever 1, and the middle large-diameter cylindrical portion 111 and the upper small-diameter cylindrical portion are in transition through a conical portion 112. The small-diameter cylinder at the upper end is the tail part 113 of the gear pin, and the outer diameter of the small-diameter cylinder is matched with the inner diameter of a small-diameter round hole of the gear shift lever; the lower small-diameter cylinder is the head 114 of the gear pin, the bottom of the head is spherical, and the head is matched with the tooth shapes of the automatic gear shifting tooth-shaped groove 134 and the manual gear shifting tooth-shaped groove 135. The tail end of the small-diameter cylinder at the tail of the gear pin is provided with a deformable claw part, the deformable claw part is formed by cutting the small-diameter cylinder, for example, a round blind hole is formed in the axial center of the small-diameter cylinder, side openings are uniformly formed in the side wall of the round blind hole, a deformable claw part is formed between the openings in two sides, and the deformable claw part can effectively reduce the assembly clearance and friction between the gear pin and a gear lever and improve the gear shifting safety of the whole vehicle.

The side surface of the split liner ring 10 is open, the inner surface of which is fitted with the outer surface of the conical portion 112, and the diameter of the outer circumferential surface of the split liner ring 10 is equal to the outer diameter of the large-diameter cylindrical portion 111. The split bush ring 10 is fixed to the shift pin 11 by the split engagement, and elastically deforms when pressed, thereby reducing the free gap between the shift pin and the shift lever.

After the gear pin 11 and the opening bushing ring 10 are assembled, the gear pin is inserted into the stepped blind hole of the gear shift lever, the upper end of the reset spring 9 abuts against a retaining shoulder of the stepped blind hole, and the lower end of the reset spring abuts against the opening bushing ring 10. The return spring 9 is preferably a cylindrical helical compression spring.

Referring to fig. 7, the ball bushing 6 is made of POM plastic, is a substantially circular ring with a certain thickness and width and is opened at the side, and comprises an inner side wall 61 and an outer side wall 62 with a certain thickness, the inner side wall is provided with an inner ball surface 611 matched with the outer ball surface of the spherical protrusion 101 of the gear shift lever, and the bottom of the inner ball surface 611 is provided with a through hole matched with the lower end cylinder of the gear shift lever. The outer side wall is provided with an outer circumferential surface 621 which is matched with the inner circumferential surface of the cylindrical cavity 512 of the upper shell, and the upper end of the inner side wall 61 is connected with the outer side wall 62, so that one side wall can be shared; the lower end of the inner side wall 61 is not connected with the outer side wall, so that the lower end of the inner side wall can be elastically deformed when being extruded. The side of the spherical bushing is provided with an opening 66, and the opening 66 penetrates the inner side wall 61 and the outer side wall 62. The design of the opening 66 allows the ball bushing to elastically deform when subjected to a force, hugging the shift lever, and reducing the free clearance between the shift lever and the upper housing. The lower end surface 622 of the outer side wall 62 is a flat surface which is fitted with the upper end surface of the center portion of the pressing plate. The side of the spherical bush 6 is provided with a mushroom-head-shaped projection 65, and the mushroom-head-shaped projection 65 can be used for mounting the wire harness 2 connected to the circuit board 12. The spherical bushing 6 is engaged with the outer sides of the two retainers 517 of the upper housing through its opening 66, and its upper end surface is connected with the mounting plane 518 of the upper housing, and its lower end surface 622 is connected with the upper end surface of the pressure plate 8.

Referring to fig. 8, the pressing plate 8 includes a pressing plate body made of a metal material, and is integrally formed as a spindle-shaped flat plate having two sharp ends and a large middle portion, and the shape thereof is adapted to the spindle-shaped mounting portion 51 of the upper case. A cylindrical support part 81 is formed by projecting the central part of one side surface of the pressure plate body outwards; the central part of cylindrical support portion is equipped with the central through-hole 811 with the gear level adaptation, and the surface of clamp plate body and its central through-hole inner wall all the cladding have soft rubber layer, and the soft rubber layer of the terminal surface of cylindrical support portion is the wave, and wave soft rubber layer 812 is connected with the lower terminal surface 622 of spherical bush 6. A plurality of rectangular protrusions 813 are uniformly distributed on the soft rubber layer of the central through hole 811, the rectangular protrusions 813 are connected with the outer circumferential surface of a lower end cylinder of the gear shift lever 1, and the rectangular protrusions 813 are matched with the gear shift lever to reduce noise. Mounting holes 82 and positioning holes 83 are formed in the two ends of the pressing plate, the mounting holes 82 are arranged corresponding to the threaded holes 514 of the upper shell, and the diameter of the mounting holes is equal to the major diameter of the threaded holes; the positioning hole 83 is arranged corresponding to the cylindrical positioning pin 515, and the diameter of the positioning hole is matched with the outer diameter of the cylindrical positioning pin 515. One end of the pressing plate 8 is symmetrically provided with a clamping groove 84, and the clamping groove 84 is used for clamping and connecting the middle part of the circuit board 12.

When the automatic gear is shifted, an operator shakes the gear shifting rod 1 forwards and backwards by hands, the 3D Hall sensor in the circuit board 12 detects the position of the magnet 3 and the deflection of the induction magnetic field, so that a gear signal is output, and the control circuit board 12 is kept on an automatic gear circuit; the gear shift lever swings back and forth around the positioning column 102 to drive the spherical head of the gear shift pin 11 to slide back and forth in the automatic gear shift tooth-shaped groove 134, and the gear shift is carried out from one gear to the other gear; the fixture block 105 on the gear shift lever 1 is clamped in the bayonet of the first clamping piece 137 of the lower shell, and the two horn-shaped protrusions 104 on the gear shift lever 1 abut against the side wall of the fixture block 138 of the lower shell, so that the safety accident of shifting the whole vehicle caused by the fact that the head of the gear pin jumps out of the automatic gear shifting tooth-shaped groove 134 due to the fact that an operator applies too much force or applies force to shift in the direction is prevented;

simultaneously, rock gear level 1 and make upper housing 5 extrusion spherical bush 6 and circular arc arch 5131, the extrusion deformation takes place for spherical bush 6's lower part and circular arc arch 5131, makes spherical bush 6 hug closely the spherical arch of gear level 1, effectively avoids triggering the noise problem of unusual and mechanism motion production because of the signal that the free gap brought greatly, promotes the smooth-going sense of shifting to obtain good manipulation travelling comfort. The core rotating mechanism of the gear shifting rod 1 adopts a cross universal joint structure, so that the gear shifting rod 1 cannot rotate in the shaking process, the stability of the mechanism is ensured, and the comfort of gear shifting operation is improved.

When the shift lever is located at the neutral position in the manual shift and automatic shift operation, the operator swings the shift lever left and right, that is, the manual shift is changed to the automatic shift, or the automatic shift is changed to the manual shift.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An electronic shifter is characterized by comprising an upper shell, a lower shell, a magnet, a shift lever, a spherical bushing, a pressure plate, a return spring, a shift pin and a circuit board, wherein the magnet, the shift lever, the spherical bushing, the pressure plate, the return spring, the shift pin and the circuit board are arranged in a cavity surrounded by the upper shell and the lower shell;

the upper shell is detachably connected with the lower shell, an upper opening is formed in the top of the upper shell, a hemispherical cavity communicated with the upper opening is formed in the upper shell, U-shaped clamping grooves are formed in two ends of the hemispherical cavity, and an automatic gear shifting tooth-shaped groove and a manual gear shifting tooth-shaped groove are formed in the bottom of the inner wall of the lower shell;

the middle part of the gear shift lever is provided with a spherical bulge, two ends of the spherical bulge are provided with positioning columns, the lower end of the gear shift lever is provided with a gear pin installation cavity, and the surface of the gear shift lever is integrally coated with a soft rubber layer; the gear shifting rod is movably fixed in the hemispherical cavity of the upper shell through the spherical bushing and the pressing plate, the two positioning columns are rotatably supported in the two U-shaped grooves of the upper shell, the upper half spherical surface of the spherical bulge of the gear shifting rod is in sliding friction connection with the inner side wall of the hemispherical cavity of the upper shell, and the lower half spherical surface of the spherical bulge of the gear shifting rod is in sliding friction connection with the inner side wall of the spherical bushing; the spherical bushing is an elastic deformable body and is clamped on the upper shell through an opening of the spherical bushing, the lower end of the spherical bushing abuts against the upper end of the pressing plate, and the pressing plate is in threaded connection with the upper shell;

the tail part of the gear pin is sleeved with a return spring, the gear pin is slidably arranged in a gear pin mounting cavity of the gear lever through the return spring, the upper end of the gear lever extends out of an upper opening of the upper shell to be connected with a handle, and the head part of the gear pin extends out of the bottom of the gear lever to be in sliding connection with an automatic gear shifting tooth-shaped groove and a manual gear shifting tooth-shaped groove of the lower shell;

the magnet and the gear shifting rod are connected into a whole through an adhesive coating layer, and a 3D Hall sensor is arranged on the circuit board; the 3D Hall sensor detects the position of the magnet and induces the deflection of the magnetic field, so that a gear signal is output, and the control circuit board is kept on the automatic gear circuit.

2. The electronic shifter of claim 1 wherein the end of the shift lever extending out of the upper housing is fitted with a dust cover in the form of a bowl with an opening facing downward over the outer wall of the upper end of the upper housing.

3. The electronic shifter of claim 1 or 2, wherein the spherical bushing is made of flexible plastic and has an inner sidewall and an outer sidewall, the inner sidewall has a spherical surface adapted to the spherical protrusion of the shift lever, the outer sidewall has an outer circumferential surface adapted to the upper housing, a lower end of the inner sidewall is not connected to the outer sidewall, and an opening is formed in a side surface of the spherical bushing and penetrates the inner sidewall and the outer sidewall.

4. The electronic shifter of claim 3 wherein the pressure plate includes a pressure plate body made of a metal material, a central portion of the pressure plate body bulging outward to form a cylindrical support portion; the central part of the cylindrical supporting part is provided with a central through hole matched with the gear shift lever, the surface of the pressure plate body and the inner wall of the central through hole are coated with soft rubber layers, the soft rubber layers on the end surfaces of the cylindrical supporting part are wavy, and the wavy soft rubber layers are connected with the lower end surface of the spherical bushing; a plurality of rectangular bulges are uniformly distributed on the soft rubber layer of the central through hole and are connected with the outer circumferential surface of the gear shift lever.

5. The electronic shifter of claim 1 or 2, wherein the upper housing is made of nylon material, and a plurality of circular arc protrusions are uniformly distributed on the inner spherical surface of the hemispherical cavity of the upper housing, and extend along the inner spherical generatrix of the hemispherical cavity.

6. The electronic shifter according to claim 1 or 2, wherein the circuit board has a concave structure, and upper, middle and lower ends of the circuit board are respectively engaged with the upper housing, the pressing plate and the lower housing.

7. The electronic shifter of claim 1 or 2 wherein the outer side of the automatic gearshift tooth groove of the lower housing is provided with a first catch for restraining the shift lever within the automatic gearshift tooth groove; the outside in the manual fender tooth-shaped groove of shifting of casing is equipped with the second card and holds the piece down, and the second card is held the piece and is used for keeping off the gear level restriction in manual fender tooth-shaped groove of shifting.

8. The electronic shifter of claim 7, wherein the bottom wall of the lower housing is provided with a stop block, the stop block is located at the front side and the rear side of the automatic shift tooth groove, the shift lever is symmetrically provided with two horn-shaped protrusions, and the horn-shaped protrusions cooperate with the stop block to limit the shift lever to slide back and forth in the manual shift tooth groove.

9. The electronic shifter of claim 1 or 2, wherein an inner side wall of the shift pin mounting cavity of the shift lever is provided with a soft rubber layer; the intermediate part of fender position round pin radially outwards extrudes and forms coniform arch, and the block is fixed with the opening grommet on the coniform arch, and the up end of opening grommet supports and leans on reset spring's lower terminal surface, and the lateral wall of opening grommet is connected with the soft rubber layer of the inside wall of the fender position round pin installation cavity of gear level.

10. The electronic shifter of claim 1 or 2, wherein the lower housing is made of POM plastic, and the head of the shift pin is spherical, and the spherical head is slidably connected to the automatic shift gate and the manual shift gate.

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