CN208041118U - The speed changer of vehicle hydraulic pressure halting mechanism and with its vehicle - Google Patents
The speed changer of vehicle hydraulic pressure halting mechanism and with its vehicle Download PDFInfo
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- CN208041118U CN208041118U CN201721847538.1U CN201721847538U CN208041118U CN 208041118 U CN208041118 U CN 208041118U CN 201721847538 U CN201721847538 U CN 201721847538U CN 208041118 U CN208041118 U CN 208041118U
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- piston rod
- push rod
- hydraulic pressure
- speed changer
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Abstract
The utility model is related to speed changer field, a kind of speed changer of vehicle hydraulic pressure halting mechanism is provided and with its vehicle.The speed changer of vehicle described in the utility model optimizes the structure of lock cell with hydraulic pressure halting mechanism, so that its reliability is stronger, can piston rod be relatively reliable maintained at parking position or non-parking position by lock cell, so that speed changer is maintained at parked state and non-parked state, and the lock cell is simple in structure, processing and installation difficulty is relatively low, but also cost reduction of the speed changer of the vehicle of the utility model with hydraulic pressure halting mechanism.
Description
Technical field
The utility model is related to transmission technology field, more particularly to a kind of speed changer of vehicle hydraulic pressure halting mechanism and
With its vehicle.
Background technology
The speed changer of vehicle can be divided into manual transmission and automatic transmission according to the difference of shift mode.With automatic
The vehicle of speed changer is simple, easy to use due to driving, and has become the main flow direction of development, increasingly by the joyous of people
It meets.And halting mechanism is in automatic transmission for preventing the safety device of vehicle sliding, with when vehicle can reliably and without when
Between limitation ground be parked on certain position or even slope.
The type of automatic transmission is various at present, and the structure of halting mechanism is also not quite similar.Wherein hydraulic pressure halting mechanism is
A kind of principal mode of halting mechanism.In general, requirement of the people to halting mechanism is that safe and reliable, stability is good.At present
In common hydraulic pressure halting mechanism, usually it is both provided with for halting mechanism to be maintained at parking position or non-parking position
Locking structure, and the reliability of the locking structure then directly influences the safety of vehicle, is asked existing for current locking structure
Topic is that either reliability is insufficient or complicated, and causes processing installation difficulty big, and cost increases.
Utility model content
In view of this, the utility model is directed to the speed changer liquid of a kind of reliability higher and vehicle simple in structure
Press halting mechanism and the vehicle with it.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of speed changer of vehicle hydraulic pressure halting mechanism, the speed changer hydraulic pressure halting mechanism include：
Push rod assembly；
Hydraulic pressure executes assembly, and the hydraulic pressure executes assembly and connect with the push rod assembly, for driving the push rod total
At movement；
Parking arm assembly, the parking arm assembly can be when the push rod assembly be moved in the effect of the push rod assembly
Under selectively on the output shaft for being set in speed changer parking gear engagement or detach, to correspondingly realize parking behaviour
Make or release parking operation；
Wherein, the hydraulic pressure execution assembly includes：It cylinder body and is set in the inner chamber body of the cylinder body and can be described
The longitudinal middle part of the piston rod moved in inner chamber body, the piston rod is provided with piston, and the inner chamber body is divided into difference
Spring cavity and hydraulic cavities positioned at the piston both sides, being arranged on the part in the spring cavity for the piston rod are stayed
Car spring, it further includes for selectively injecting hydraulic oil into the hydraulic cavities or by the liquid that the hydraulic pressure, which executes assembly,
The hydraulic oil supply unit of the hydraulic oil discharge in chamber is pressed, the spring force and come from liquid that the piston applies in the parking spring
Pressing can be such that the piston rod is moved along the inner chamber body under the collective effect of the hydraulic coupling of chamber, the first end of the piston rod from
The spring cavity is stretched out away from one end of the piston, and the second end of the piston rod deviates from the work from the hydraulic cavities
One end of plug is stretched out, and the second end is connected to the push rod assembly, drives the push rod total to the movement of the piston rod
At movement, and it is provided at the first end for the piston rod to be maintained on parking position and non-parking position
Lock cell,
Wherein, the cylinder body is formed with locking piece installation cavity, the lock cell at position corresponding with the first end
Include the locking piece in the locking piece installation cavity, the main part of the locking piece is formed as cylindrical and along diameter
To through-hole is formed with, the first end of the piston rod passes through the through-hole, the internal diameter of the through-hole to be more than the piston rod
The first end outer diameter, the lock slots radially extended along the piston rod, the through-hole are formed in the first end
Inner surface on accordingly project radially inwards the convex block for being formed with and being inserted into the lock slots, the locking piece
It is respectively arranged with Lock spring and automatically controlled pusher along the both sides of the extending direction of the convex block, the vehicle includes electronic control
The signal input part of unit, the automatically controlled pusher is electrically connected to the signal output end of the electronic control unit, is being provided with
The side of the Lock spring, the locking piece installation cavity are enclosed so that the both ends of the Lock spring are pressed against the lock respectively
Determine the inner wall of part installation cavity and the locking piece, in the side for being provided with the automatically controlled pusher, the locking piece installation cavity is beaten
It opens so that the push rod of the automatically controlled pusher can contact and push the locking piece, when the piston rod is located at non-parking position
When setting, the convex block corresponds to each other with the lock slots, when the piston rod is located at parking position, the piston rod it is described
The end face of first end and one end of the direction piston of the locking piece offset.
Further, the locking piece further includes machining away one on the end surface in an axial direction of the main part
Point with the anti-rotation groove of formation, the lock cell further include along anti-rotation groove described in this side wall be inserted into it is anti-in the anti-rotation groove
It ships and resell on another market, the locking piece can be moved relative to the stop pin and radially be moved, and when the convex block is positioned at described
When except piston rod, the stop pin is in contact with the side wall of the anti-rotation groove, to prevent the locking piece relative to the work
Stopper rod rotates.
Further, the axial direction being formed on the outer surface of the piston rod along the piston rod machines away a part with shape
At another anti-rotation groove, it further includes being inserted into another anti-rotation along the radial direction of the piston rod that the hydraulic pressure, which executes assembly,
Another stop pin in slot, another stop pin can be along the axially opposing fortune of the piston rod with another anti-rotation groove
It is dynamic, and another stop pin is in contact with the cell wall of another anti-rotation groove, to prevent the piston rod to be rotated about axis.
Further, it is formed with the larger major diameter of outer diameter on the part of the piston rod being located in the spring cavity
Section, at the enlarged diameter section, the internal diameter of the parking spring is equal to the outer diameter of the piston rod, and in the piston rod
At the position in addition to the enlarged diameter section, the internal diameter of the parking spring is more than the work for part in the spring cavity
The outer diameter of stopper rod, the enlarged diameter section are arranged close to the piston.
Further, the hydraulic oil supply unit includes solenoid valve, and the solenoid valve includes main line and is set to institute
The oil inlet valve portion at main line both ends and fuel-displaced valve portion are stated, the main line is connected to the hydraulic fluid port of the hydraulic cavities, the inlet valve
The oil inlet in portion is connected to the lubricant reservoir of the speed changer by the first oil pipe, and the oil outlet of the fuel-displaced valve portion passes through second
Oil pipe is connected to the oil leab of the speed changer, and the signal input part of the solenoid valve is electrically connected to the electronic control unit
Signal output end.
Further, it further includes being installed on the cylinder body for detecting in the hydraulic cavities that the hydraulic pressure, which executes assembly,
Hydraulic oil pressure pressure sensor, the signal output end of the pressure sensor is electrically connected to the electronic control unit
Signal input part, and the signal output end of the electronic control unit is electrically connected to the signal input part of the solenoid valve.
Further, the hydraulic pressure executes the holder that assembly further includes the second end for being connected to the piston rod, the branch
Installation through-hole is formed on frame；The push rod assembly includes push rod and is connected to the parking cam of described push rod one end, described to push away
It is installed in the installation through-hole to the other end clearance fit of bar, the parking cam with the parking arm assembly for connecing
It touches.
Further, the push rod includes the first push rod section and the second push rod section extended perpendicular to each other, one end position
In in the first push rod section, the other end is located in the second push rod section, is provided in the axial direction on described one end
On be spaced and the first lug being staggered and the second lug, the first lug is compared to second lug further from institute
State the second push rod section, the installation through-hole includes round main through-hole and the secondary through-hole that is connected to the main through-hole of circle, the pair
Through-hole can allow for the first lug to pass through, and the internal diameter of the main through-hole of circle is outer slightly larger than the first push rod section
Diameter；Third lug and the 4th lug relative to each other are formed in the second push rod section, the push rod assembly further includes in pressure
The parking spring being set in contracting state in the second push rod section, one end of the parking spring and the third lug and the
Four lugs offset, and the other end offsets with the parking cam.
Further, the parking arm assembly includes relative to each other and spaced parking arm and locating piece, described to stay
Vehicle arm is configured to rotate around rotary pin shaft, the parking arm away from the side of the locating piece towards the park tooth
Wheel, the parking cam, which extend between the parking arm and locating piece and is formed as edge, extend into the parking arm and positioning
Direction outer diameter between block is gradually reduced, and is set as when the parking cam is located at non-parking position, the parking arm and institute
Parking gear separation is stated, and reaches and stays when the depth that the parking cam is extend between the parking arm and locating piece increases
When truck position, the parking cam pushes the parking arm to rotate around the rotary pin shaft and engaged with the parking gear；Institute
It further includes being set on the rotary pin shaft to be moved to parking arm application towards the locating piece to state parking arm assembly
The return spring of spring force.
Further, the hydraulic pressure executes the shift sensing that assembly further includes the real time position for detecting the piston rod
Device, the signal output end of the shift sensor are electrically connected to the signal input part of the electronic control unit；The gear passes
Sensor includes the detection detecting means being installed on the shell of the speed changer and the portion to be detected being installed on the holder, described
It detects detecting means and the portion to be detected is positioned opposite to each other.
The another aspect of the utility model provides a kind of vehicle, is provided with the speed changer hydraulic pressure parking of the vehicle
Mechanism.
The speed changer of the vehicle of the utility model is stronger with hydraulic pressure halting mechanism safety, can be compared with can by lock cell
It is maintained at parked state and non-parked state, also, wherein lock cell not only reliable working performance, but also structure letter by ground
List, processing and installation difficulty are relatively low, but also cost reduction of the speed changer of the vehicle of the utility model with hydraulic pressure halting mechanism.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The exemplary embodiment and its explanation of type are not constituted improper limits to the present invention for explaining the utility model.
In the accompanying drawings：
Fig. 1 is the dimensional structure diagram of the speed changer hydraulic pressure halting mechanism described in the utility model embodiment,
The piston rod in cylinder body and locking piece are removed divided by shown to the partial shell of middle cylinder body；
The sectional view of hydraulic actuating mechanism part in the speed changer hydraulic pressure halting mechanism that Fig. 2 is Fig. 1；
The schematic diagram that the first oil pipe is connect with solenoid valve in the speed changer hydraulic pressure halting mechanism that Fig. 3 is Fig. 1；
The schematic diagram of push rod assembly in the speed changer hydraulic pressure halting mechanism that Fig. 4 is Fig. 1；
The schematic diagram of installation through-hole in the speed changer hydraulic pressure halting mechanism that Fig. 5 is Fig. 1 on holder；
The signal of push rod assembly and the binding site of parking arm assembly in the speed changer hydraulic pressure halting mechanism that Fig. 6 is Fig. 1
Figure；
The schematic diagram that piston rod is connect with holder in the speed changer hydraulic pressure halting mechanism that Fig. 7 is Fig. 1.
Reference sign：
1 cylinder body, 2 parking gear
3 shift sensors 31 detect detecting means
4 pressure sensor, 5 automatically controlled pusher
6 parking spring, 7 solenoid valve
8 first oil pipe, 9 locking piece
91 convex block, 92 anti-rotation groove
10 piston rod, 101 lock slots
102 another anti-rotation groove, 103 enlarged diameter section
11 blanking cover, 12 push rod assembly
121 parking cam, 122 parking spring
123 push rod, 1,231 first push rod section
1232 second push rod section, 1234 first lug
1235 second lug, 1236 third lug
1237 the 4th lug, 13 locating piece
14 parking arm, 15 rotary pin shaft
16 return spring, 17 piston
18 spring cavity, 19 hydraulic cavities
20 Lock spring, 21 stop pin
22 holders
Specific implementation mode
It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the utility model
Sign can be combined with each other.
In the present invention, it is to be understood that term " center ", " circumferential direction ", " direction ", " axial direction ", " radial direction ",
The orientation or positional relationship of instructions such as " deviating from " be based on the orientation or positional relationship shown in the drawings, also with the orientation of actual use
Or position relationship is corresponding；The noun of locality used such as " upper and lower, left and right " typically refer to shown in refer to the attached drawing it is upper and lower, left,
It is right；" inside and outside " refers to the inside and outside of the profile relative to each component itself；It is merely for convenience of description the utility model and simplification
Description, rather than indicate that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore
It should not be understood as limiting the present invention.
The utility model is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
The first aspect of the utility model provides a kind of speed changer of vehicle hydraulic pressure halting mechanism, and the speed changer is used
Hydraulic pressure halting mechanism includes：
Push rod assembly 12；
Hydraulic pressure executes assembly, and the hydraulic pressure executes assembly and connect with the push rod assembly 12, for driving the push rod
Assembly 12 moves；
Parking arm assembly, the parking arm assembly can be when the push rod assembly 12 be moved in the push rod assembly 12
It selectively engages or detaches with the parking gear 2 on the output shaft for being set in speed changer under effect, to correspondingly realize
Parking operation releases parking operation；
Wherein, the hydraulic pressure execution assembly includes：It cylinder body 1 and is set in the inner chamber body of the cylinder body 1 and can be in institute
The piston rod 10 moved in inner chamber body is stated, the longitudinal middle part of the piston rod 10 is provided with piston 17, by the inner chamber body point
It is divided into the spring cavity 18 and hydraulic cavities 19 for being located at 17 both sides of the piston, the piston rod 10 is located at the spring cavity 18
In part on be arranged with parking spring 6, it further includes for selectively into the hydraulic cavities 19 that the hydraulic pressure, which executes assembly,
It injects hydraulic oil or by the hydraulic oil supply unit of the hydraulic oil discharge in the hydraulic cavities 19, the piston 17 is stayed described
The piston rod 10 can be made along described under the collective effect of the spring force that car spring 6 applies and the hydraulic coupling from hydraulic cavities 19
Inner chamber body moves, first end the stretching out away from one end of the piston 17 from the spring cavity 18 of the piston rod 10, described
The second end of piston rod 10 is stretched out from the hydraulic cavities 19 away from one end of the piston 17, and the second end is connected to institute
Push rod assembly 12 is stated, drives the push rod assembly 12 to move to the movement of the piston rod 10, and at the first end
It is provided with the lock cell for being maintained at the piston rod 10 on parking position and non-parking position,
Wherein, the cylinder body 1 is formed with locking piece installation cavity, the lock cell at position corresponding with the first end
Include the locking piece 9 in the locking piece installation cavity, the main part of the locking piece 9 is formed as cylindrical and edge
It is formed radially through-hole, the first end of the piston rod 10 passes through the through-hole, the internal diameter of the through-hole to be more than the work
The outer diameter of the first end of stopper rod 10 is formed with the lock slots radially extended along the piston rod 10 in the first end
101, accordingly project radially inwards on the inner surface of the through-hole be formed be inserted into it is convex in the lock slots 101
The both sides of block 91, the extending direction along the convex block 91 of the locking piece 9 are respectively arranged with Lock spring 20 and automatically controlled promotion
Device 5, the vehicle include electronic control unit, and the signal input part of the automatically controlled pusher 5 is electrically connected to the electronic control
The signal output end of unit, in the side for being provided with the Lock spring 20, the locking piece installation cavity is enclosed so that described
The both ends of Lock spring 20 are pressed against the inner wall and the locking piece 9 of the locking piece installation cavity respectively, described automatically controlled being provided with
The side of pusher 5, the locking piece installation cavity are opened so that the push rod of the automatically controlled pusher 5 can contact and push institute
Locking piece 9 is stated, when the piston rod 10 is located at non-parking position, the convex block 91 corresponds to each other with the lock slots 101, when
When the piston rod 10 is located at parking position, the direction of the end face and the locking piece 9 of the first end of the piston rod 10
One end of the piston 17 offsets.
For the speed changer hydraulic pressure halting mechanism of the vehicle of present embodiment, operation principle is substantially：When need into
When row parking operation, driver hangs parking gear, and the electronic control unit of vehicle receives parking signal and by the signal transmission
To automatically controlled pusher 5, the work of automatically controlled pusher 5 applies motive force so that locking piece 9 moves in locking piece installation cavity, convex block
91 detach lock slots 101, and (in the embodiment of Fig. 2, automatically controlled pusher 5 receives the release of parking signal rear push-rod, is pressed against
The left direction into Fig. 2 of locking piece 9 moves until convex block 91 detaches lock slots 101) so that lock cell is to piston rod 10
Locking ability is lost, piston rod 10 can be moved along inner chamber body, at this point, hydraulic pressure executes assembly does not inject hydraulic pressure into hydraulic cavities 19
Oil enables hydraulic oil in hydraulic cavities 19 be discharged instead, and piston rod 10 moves under the promotion of the parking spring 6 of compressive state
Its parking position, the second end of piston rod 10 then push push rod assembly 12 move and so that push rod assembly also reaches its parking position
It sets, push rod assembly 12 is engaged with the parking gear 2 on the output shaft for being set in speed changer from parking operation is realized, at this point, electronics
Control unit controls automatically controlled pusher 5 and does not continue to motive force, negative direction under the action of Lock spring 20 of locking piece 9 again
Move to locking piece 9 the end face towards piston 17 resist the piston rod 10 first end end face, to prevent piston rod
10 return, and piston rod 10 is maintained at its parking position, then make push rod assembly 12 be maintained at its parking position and be set in
Parking gear 2 on the output shaft of speed changer engages always keeps parked state；When needing to release parking, driver, which hangs, to be released
Parking gear, the electronic control unit of vehicle, which receives, to be released parking signal and transmits the signal to automatically controlled pusher 5, automatically controlled
The work of pusher 5 applies motive force so that locking piece 9 moves in locking piece installation cavity so that lock cell is to piston rod 10
Losing locking ability, (in the embodiment of Fig. 2, automatically controlled pusher 5, which receives, releases the release of parking signal rear push-rod, against lock
Determine the left direction into Fig. 2 of part 9 to move until lock cell loses locking ability to piston rod 10), piston rod 10 can be along interior
Cavity moves, at this point, hydraulic pressure executes assembly injects hydraulic oil into hydraulic cavities 19 so that the hydraulic fluid pressure in hydraulic cavities 19 reaches
To a certain extent so that the hydraulic thrust of the hydraulic cavities suffered by piston rod 10 is more than the spring of the parking spring 6 of compressive state
Thrust, piston rod 10 (upward direction along Fig. 2) move and return back to its non-parking position, and convex block 91 will be with lock slots at this time
101 opposite to each other, the second end of piston rod 10 then pull push rod assembly 12 move and so that push rod assembly 12 to also return to its non-
Parking position, push rod assembly 12 detach from realization with the parking gear 2 on the output shaft for being set in speed changer and release parking operation,
At this point, electronic control unit controls automatically controlled pusher 5 again does not continue to motive force, effect of the locking piece 9 in Lock spring 20
The convex block 91 that lower negative direction moves to locking piece 9 is inserted into lock slots 101, to which piston rod 10 is maintained at its non-parking
Position, then make push rod assembly 12 be maintained at its non-parking position and with the parking gear 2 that is set on the output shaft of speed changer
It is consistently separated and keeps non-parked state.
As can be seen that the speed changer hydraulic pressure parking machine of the vehicle of the utility model from the elaboration above to operation principle
Structure safety is stronger, can relatively reliable be maintained at parked state and non-parked state by lock cell, also, wherein lock
Unit not only reliable working performance, and it is simple in structure, processing and installation difficulty is relatively low, but also the vehicle of the utility model
The cost reduction of speed changer hydraulic pressure halting mechanism.
Preferably, the locking piece 9 further includes machining away one on the end surface in an axial direction of the main part
Point with the anti-rotation groove 92 of formation, the lock cell further includes being inserted into the anti-rotation groove 92 along the side wall of anti-rotation groove described in this 92
In stop pin 21, the locking piece 9 can move relative to the stop pin 21 and radially move, and when described convex
When block 91 is located at except the piston rod 10, the stop pin 21 is in contact with the side wall of the anti-rotation groove 92, described to prevent
Locking piece 9 is rotated relative to the piston rod 10, to further increase the functional reliability of lock cell.
Similarly, it is preferable that the axial direction being formed on the outer surface of the piston rod 10 along the piston rod 10 machines away one
Another anti-rotation groove 102 of the part to be formed, it further includes the radial direction insertion along the piston rod 10 that the hydraulic pressure, which executes assembly,
To another stop pin 21 in another anti-rotation groove 102, another stop pin 21 being capable of edge with another anti-rotation groove 102
The axial relative movement of the piston rod 10, and another stop pin 21 connects with the cell wall of another anti-rotation groove 102
It touches, to prevent the piston rod 10 to be rotated about axis, to further increase the functional reliability of lock cell.
It will be appreciated by persons skilled in the art that the speed changer hydraulic pressure halting mechanism of the vehicle of the utility model may be used also
With the structure for preventing piston rod 10 and locking piece 9 from relatively rotating including other forms, these anti-rotation structures or portion are set
The purpose of part is for preventing piston rod 10 and locking piece 9 from rotating and lock cell is caused to fail, and provide lock cell can
By property, ensure the safety of vehicle；And for anti-rotation structure and component shown in above-mentioned illustrated embodiment, there is structure letter
Singly, the advantages of being easily worked and install.
Also, it is specially electromagnet pusher for the automatically controlled pusher 5 in present embodiment, when the electromagnet pushes away
When dynamic device is powered, electromagnet has magnetism, under the magnetic force releases the push rod of the electromagnet pusher and is pressed against locking
Part 9 applies thrust to locking piece 9, and after the electromagnet pusher powers off, electromagnet will not have magnetism, and then push rod is to lock
The thrust for determining part 9 disappears, it is, of course, understood that it is also an option that any suitable other types of automatically controlled pusher 5.
Also, the elastic force of locking spring 20 is excessive and had an impact to the installation reliability of automatically controlled pusher 5, automatically controlled promotion in order to prevent
Device 5 is installed by the pressing plate that the outside and outer edge that are pressed in the automatically controlled pusher 5 are installed on by bolt on the cylinder body 1
Onto the cylinder body 1, to improve the installation fastness of automatically controlled pusher 5.
Cylinder body 1 can also include the blanking cover 11 for sealed hydraulic chamber 19, and cylinder body 1 can be installed to the shell of speed changer
On.
Referring to Fig. 2, it is preferable that in present embodiment, on the part of the piston rod 10 being located in the spring cavity 18
It is formed with the larger enlarged diameter section 103 of outer diameter, at the enlarged diameter section 103, the internal diameter of the parking spring 6 is equal to the work
The outer diameter of stopper rod 10, and in the part of the piston rod 10 being located in the spring cavity 18 except the enlarged diameter section 103
Position in addition, the internal diameter of the parking spring 6 are more than the outer diameter of the piston rod 10, and the enlarged diameter section 103 is close to described
Piston 17 is arranged, then in this case, the limit and guide part that the enlarged diameter section 103 can be as the parking spring 6,
Prevent parking spring 6 from glancing off and deforming, and at the position in addition to the enlarged diameter section 103, then parking spring 6 can be certainly
By stretching, the normal work of parking spring 6 is not interfered with, in present embodiment, the lower end of parking spring 6 is set in enlarged diameter section
On 103, upper end is then pressed against the upper wall of spring cavity 18.
Also, specifically, the hydraulic oil supply unit includes solenoid valve 7 combined with Figure 1 and Figure 2, and the solenoid valve 7 wraps
Main line and the oil inlet valve portion 71 and fuel-displaced valve portion 72 that are set to the main line both ends are included, the main line is connected to the liquid
The hydraulic fluid port of chamber 19, the oil inlet of the oil inlet valve portion 71 is pressed to be connected to the lubricant reservoir of the speed changer, institute by the first oil pipe 8
The oil outlet for stating fuel-displaced valve portion 72 is connected to the oil leab of the speed changer, the signal of the solenoid valve 7 by the second oil pipe
Input terminal is electrically connected to the signal output end of the electronic control unit.By the way that the first oil pipe 8 and the second oil pipe is arranged, be conducive to
Hydraulic pressure halting mechanism more flexible arrangement in the transmission；Also, in present embodiment, hydraulic oil enters and arranges in hydraulic cavities 19
Go out the hydraulic fluid port by hydraulic cavities 19, when electronic control unit receives parking signal, electronic control unit is sent out to solenoid valve 7
The oil inlet of electric signals, oil inlet valve portion 71 is closed and the oil outlet of fuel-displaced valve portion 72 is opened, the hydraulic oil warp in hydraulic cavities 19
It is discharged by the oil outlet of fuel-displaced valve portion 72, when electronic control unit receives contact parking signal, electronic control unit is to electricity
Magnet valve 7 sends electric signal, and the oil inlet of oil inlet valve portion 71 is opened and the oil outlet of fuel-displaced valve portion 72 is closed, extraneous hydraulic oil warp
Entered in hydraulic cavities 19 by the oil inlet of oil inlet valve portion 71.Also, solenoid valve 7 by be pressed in the solenoid valve 7 outside and
Outer edge is installed to by the pressing plate that bolt is installed on the cylinder body 1 on the cylinder body 1, to improve the installation jail of solenoid valve 7
Solidity.
Preferably, it further includes being installed on the cylinder body 1 for detecting the hydraulic cavities 19 that the hydraulic pressure, which executes assembly,
The signal output end of the pressure sensor 4 of the pressure of interior hydraulic oil, the pressure sensor 4 is electrically connected to the electronic control
The signal input part of unit, in this way, by the pressure of the hydraulic oil in pressure sensor 4 in real time detection hydraulic cavities 19, and will inspection
The pressure signal measured is transmitted to electronic control unit, then is sent signal to solenoid valve 7 from electronic control unit and accordingly controlled
The aperture of the solenoid valve 7, and then the rate for entering the hydraulic oil in hydraulic cavities 19 is controlled, prevent hydraulic oil pressure in hydraulic cavities 19
Power moment increase to more than regulation and may caused by piston rod 10 move upward rapidly, then cause piston rod 10 and matching
The damage of the parking spring 6 of conjunction, lock cell etc..
Also, emphasis is referring to Fig. 1, it is preferable that it further includes be connected to the piston rod 10 that the hydraulic pressure, which executes assembly,
The holder 22 (holder 22 with piston rod 10 can pass through rivet interlacement) at two ends is formed with installation through-hole on the holder 22；Institute
Push rod assembly 12 is stated to include push rod 123 and be connected to the parking cam 121 of 123 one end of the push rod, the push rod 123 it is another
Splaying is ordinatedly installed in the installation through-hole, and the parking cam 121 with the parking arm assembly for contacting.At this
In the case of kind, in the case that parking cam 121 is impacted because being contacted with the parking arm assembly, push rod can be passed through
123 described one end and the clearance fit of holder 22 and absorb or at least reduce the impact, reduce or avoid piston rod 10 with
And the component that relative other hydraulic pressure execute assembly is affected.
Further specifically, with continued reference to Fig. 1 and in conjunction with Fig. 4, the push rod 123 includes that first extended perpendicular to each other pushes away
Rod segment 1231 and the second push rod section 1232, described one end are located in the first push rod section 1231, and the other end is located at described
In second push rod section 1232,1234 He of first lug for being spaced and being staggered in the axial direction is provided on described one end
Second lug 1235, the first lug 1234 compared to second lug 1235 further from the second push rod section 1232,
The installation through-hole includes round main through-hole and the secondary through-hole that is connected to the main through-hole of circle, and the secondary through-hole can allow for institute
It states first lug 1234 to pass through, and the internal diameter of the main through-hole of circle is slightly larger than the outer diameter of the first push rod section 1231, in this way,
When installation, first so that described one end and first lug 1234 thereon pass through the installation through-hole, and due to the second lug
1235 hinder with holder 22, then push rod 123 will be unable to continue to move, and rotate the first push rod section 1231 at this time so that first
Lug 1234 is staggered with the secondary through-hole, then since first lug 1234 and holder 22 hinder, then push rod 123 also can not be again
It retracts, to realize the connection of push rod 123 and holder 22, after installing, holder 22 and the first push rod section 1231 are located at the
Part between one lug 1234 and the second lug 1235 contacts with holder 22 and is mounted in the main through-hole of circle, and due to
The internal diameter of the main through-hole of circle is slightly larger than the outer diameter of the first push rod section 1231, to realize holder 22 and the first push rod
The clearance fit of section 1231.
Also, third lug 1236 and the 4th lug 1237 relative to each other are formed in the second push rod section 1232,
The push rod assembly 12 further includes the parking spring 122 being set in compressive state in the second push rod section 1232, described
One end of parking spring 122 offsets with 1236 and the 4th lug 1237 of the third lug, the other end and the parking cam 121
It offsets.Fig. 1 is participated in, when piston rod 10 moves to activation point from non-driven position, the second end of piston rod 10 drives holder
22 move downward, and then the first push rod section 1231 also moves downward and parking cam 121 is pushed to move downward；And work as piston rod 10
When returning to non-driven position from activation point, the second end of piston rod 10 drives holder 22 to move upwards, in the pulling of holder 22
Under, the first push rod section 1231 also moves upwards and parking cam 121 is driven to move upwards.Inventor's discovery of the utility model,
For the impacting from parking arm assembly that parking cam 121 is subject to, generally include towards the radial and axial of parking cam 121
Two points of impacts, by point impact in an axial direction of the buffering of parking spring 122 and pass through the second push rod section 1232 and holder 22
Clearance fit buffering radially point impact, can greatly reduce and absorb the impact, then be finally transmitted to piston rod
10 and its associated structures radial impact be very little even it is negligible.
Further specifically, the parking arm assembly includes relative to each other and spaced parking arm 14 and locating piece
13, the parking arm 14 be configured to around rotary pin shaft 15 rotate, the parking arm 14 away from the one of the locating piece 13
Side extend between the parking arm 14 and locating piece 13 and is formed as towards the parking gear 2, the parking cam 121
It is gradually reduced along the direction outer diameter extending between the parking arm 14 and locating piece 13, is set as working as the parking cam 121
When positioned at non-parking position, the parking arm 14 is detached with the parking gear 2, and when the parking cam 121 extend into institute
When stating the increase of the depth between parking arm 14 and locating piece 13 and reaching parking position, the parking cam 121 pushes described stay
Vehicle arm 14 is rotated around the rotary pin shaft 15 and is engaged with the parking gear 2；The parking arm assembly further includes being set in institute
It states on rotary pin shaft 15 to apply the return spring 16 of the spring force moved towards the locating piece 13 to the parking arm 14.
In conjunction with Fig. 1 and Fig. 6, in present embodiment, parking cam 121 is inserted into always between the parking arm 14 and locating piece 13, by
This can be omitted the setting of additional guide frame so that and structure is more simple and reliable, but as parking cam 121 is from non-parking
Position reaches its parking position, and parking cam 121 will move downward, to which parking cam 121 is inserted into 14 He of parking arm
Depth between locating piece 13 will increase, and due to the special appearance profile of parking cam 121, as it is inserted into the parking
Depth between arm 14 and locating piece 13 increases, and will push 14 remotely located pieces 13 of parking arm, that is, will push parking arm
14 towards parking gear 2 move, be set as when parking cam 121 is located at its non-parking position, parking arm 14 not with parking
Gear 2 contacts, and the output shaft of clutch runs well, and when parking cam 121 reaches its parking position, parking arm 14 with stay
Skiving wheel 2 contacts so that the parking gear 2 combined with the output shaft of clutch shuts down, to realize parking operation；When
When needing to release parking, parking cam 121 moves upwards, and parking arm 14 is transported under the promotion of return spring 16 towards locating piece 13
It is dynamic.
Wherein, parking gear 2 can be fitted in by spline on the output shaft of speed changer and with the output shaft of speed changer one
And it rotates.
Wherein, locating piece 13 can be mounted on by way of interference press fitting on case of transmission, and shape can be substantially
For hemicycle tubular, and the position towards locating piece 13 of parking arm 14 can have matched shape, so as to block
Parking cam 121；And parking cam 121 have from top to bottom there are three segmentation, first segmentation and second segmentation tool for from up to
The conical section that lower outer diameter is gradually reduced, and seamlessly transitted between each segmentation.
Moreover it is preferred that the hydraulic pressure executes the gear that assembly further includes the real time position for detecting the piston rod 10
Level sensor 3, the signal output end of the shift sensor 3 are electrically connected to the signal input part of the electronic control unit；Institute
Shift sensor 3 is stated to include the detection detecting means 31 being installed on the shell of the speed changer and be installed on the holder 22
Portion to be detected, the detection detecting means 31 and the portion to be detected are positioned opposite to each other.The shift sensor 3 is for detecting
The real time position of piston rod 10 will be detected when detecting that the piston rod 10 reaches its parking position or its non-parking position
Signal transmission electron control unit from electronic control unit again to automatically controlled pusher 5 and the transmission instruction of solenoid valve 7, and controls
Automatically controlled pusher 5 works, and makes lock cell that piston rod 10 is locked in its parking position or non-parking position, and control solenoid valve
7 respective responses, to control the output and discharge of hydraulic oil in hydraulic cavities 19.Also, referring to Fig. 1 and Fig. 7, in present embodiment,
Portion to be detected includes the sense magnets being mounted on holder 22, and detection sensor 31 is then mounted on case of transmission, detection
Sensor 31 is relatively stationary, and portion to be detected can with holder 22 then with piston rod 10 move, then with sensing magnetic
Iron generates relative motion, and the magnetic field of the sense magnets detected by detection sensor 31 changes to judge the reality of piston rod 10
When position.
Wherein the hydraulic pressure halting mechanism of the utility model is due to suitable for automatic transmission.
Second aspect according to the present utility model, additionally provides a kind of vehicle, and the vehicle is provided with new according to this practicality
The speed changer of the vehicle of type hydraulic pressure halting mechanism.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail above in association with attached drawing
In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model.
It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model
Various combinations of possible ways are no longer separately illustrated.But these simple variants and combination equally should be considered as the utility model institute
Disclosure belongs to the scope of protection of the utility model.
Claims (11)
1. a kind of speed changer of vehicle hydraulic pressure halting mechanism, the speed changer hydraulic pressure halting mechanism include：
Push rod assembly (12)；
Hydraulic pressure executes assembly, and the hydraulic pressure executes assembly and connect with the push rod assembly (12), for driving the push rod total
It is moved at (12)；
Parking arm assembly, the parking arm assembly can be when the push rod assembly (12) be moved in the push rod assembly (12)
It selectively engages or detaches with the parking gear (2) on the output shaft for being set in speed changer under effect, to correspondingly real
Existing parking operation releases parking operation；
Wherein, the hydraulic pressure executes assembly and includes cylinder body (1) and be set in the inner chamber body of the cylinder body (1) and can be described
The longitudinal middle part of the piston rod (10) moved in inner chamber body, the piston rod (10) is provided with piston (17), by the inner cavity
Body is divided into the spring cavity (18) for being located at the piston (17) both sides and hydraulic cavities (19), piston rod (10) are located at
Parking spring (6) is arranged on part in the spring cavity (18), it further includes for selectively that the hydraulic pressure, which executes assembly,
It is conveyed to injection hydraulic oil in the hydraulic cavities (19) or the hydraulic oil that the hydraulic oil in the hydraulic cavities (19) is discharged single
Member, the common work of the spring force that the piston (17) applies in the parking spring (6) and the hydraulic coupling from hydraulic cavities (19)
Under the piston rod (10) can move along the inner chamber body, the first end of the piston rod (10) is from the spring cavity
(18) away from the piston (17) one end stretch out, second end the deviating from from the hydraulic cavities (19) of the piston rod (10)
One end of the piston (17) is stretched out, and the second end is connected to the push rod assembly (12), to the piston rod (10)
Movement drives push rod assembly (12) movement, and is provided at the first end for keeping the piston rod (10)
Lock cell on parking position and non-parking position,
It is characterized in that, the cylinder body (1) is formed with locking piece installation cavity, the locking at position corresponding with the first end
Unit includes the locking piece (9) being located in the locking piece installation cavity, and the main part of the locking piece (9) is formed as cylinder
Shape and it is radially formed through-hole, the first end of the piston rod (10) passes through the through-hole, the internal diameter of the through-hole
More than the outer diameter of the first end of the piston rod (10), the diameter along the piston rod (10) is formed in the first end
To the lock slots (101) of extension, accordingly projects radially inwards to be formed on the inner surface of the through-hole and be inserted into institute
The convex block (91) in lock slots (101) is stated, the both sides of the extending direction along the convex block (91) of the locking piece (9) are set respectively
It is equipped with Lock spring (20) and automatically controlled pusher (5), the vehicle includes electronic control unit, the automatically controlled pusher (5)
Signal input part is electrically connected to the signal output end of the electronic control unit, is being provided with the one of the Lock spring (20)
Side, the locking piece installation cavity are enclosed so that the both ends of the Lock spring (20) are pressed against the locking piece installation cavity respectively
Inner wall and the locking piece (9), in the side for being provided with the automatically controlled pusher (5), the locking piece installation cavity open so that
The locking piece (9) can be contacted and push by obtaining the push rod of the automatically controlled pusher (5), when the piston rod (10) is located at non-stay
When truck position, the convex block (91) corresponds to each other with the lock slots (101), when the piston rod (10) is located at parking position
When, one end phase of the end face of the first end of the piston rod (10) and the direction piston (17) of the locking piece (9)
It supports.
2. the speed changer of vehicle according to claim 1 hydraulic pressure halting mechanism, which is characterized in that the locking piece (9)
Further include the anti-rotation groove (92) that a part is machined away on the end surface in an axial direction of the main part to be formed, the lock
Order member further includes being inserted into stop pin (21) in the anti-rotation groove (92), the lock along the side wall of anti-rotation groove described in this (92)
Determining part (9) can radially move relative to the stop pin (21) movement, and when the convex block (91) is positioned at described
When except piston rod (10), the stop pin (21) is in contact with the side wall of the anti-rotation groove (92), to prevent the locking piece
(9) it is rotated relative to the piston rod (10).
3. the speed changer of vehicle according to claim 1 hydraulic pressure halting mechanism, which is characterized in that the piston rod (10)
Outer surface on be formed with the axial direction along the piston rod (10) and machine away another anti-rotation groove (102) of the part to be formed, institute
It further includes being inserted into another anti-rotation groove (102) along the radial direction of the piston rod (10) to state hydraulic pressure and execute assembly
Another stop pin (21), another stop pin (21) can be along the piston rods (10) with another anti-rotation groove (102)
Axial relative movement, and another stop pin (21) is in contact with the cell wall of another anti-rotation groove (102), to prevent
Piston rod (10) is stated to be rotated about axis.
4. the speed changer of vehicle according to claim 1 hydraulic pressure halting mechanism, which is characterized in that the piston rod (10)
Be located at the spring cavity (18) in part on be formed with the larger enlarged diameter section of outer diameter (103), in the enlarged diameter section
(103) at, the internal diameter of the parking spring (6) is equal to the outer diameter of the piston rod (10), and in the piston rod (10)
Part in the spring cavity (18) at the position in addition to the enlarged diameter section (103), the parking spring (6) it is interior
Diameter is more than the outer diameter of the piston rod (10), and the enlarged diameter section (103) is arranged close to the piston (17).
5. the speed changer of vehicle according to claim 1 hydraulic pressure halting mechanism, which is characterized in that the hydraulic oil conveying
Unit includes solenoid valve (7), and the solenoid valve (7) includes main line and is set to the oil inlet valve portion (71) at the main line both ends
With fuel-displaced valve portion (72), the main line is connected to the hydraulic fluid port of the hydraulic cavities (19), the oil inlet of the oil inlet valve portion (71)
The lubricant reservoir of the speed changer is connected to by the first oil pipe (8), the oil outlet of the fuel-displaced valve portion (72) passes through the second oil
Pipe is connected to the oil leab of the speed changer, and the signal input part of the solenoid valve (7) is electrically connected to the electronic control list
The signal output end of member.
6. the speed changer of vehicle according to claim 5 hydraulic pressure halting mechanism, which is characterized in that the hydraulic pressure executes total
At further include be installed on the cylinder body (1) for detect the hydraulic oil in the hydraulic cavities (19) pressure pressure sensing
The signal output end of device (4), the pressure sensor (4) is electrically connected to the signal input part of the electronic control unit, and
The signal output end of the electronic control unit is electrically connected to the signal input part of the solenoid valve (7).
7. the speed changer of vehicle according to claim 1 hydraulic pressure halting mechanism, which is characterized in that the hydraulic pressure executes total
At the holder (22) for further including the second end for being connected to the piston rod (10), installation through-hole is formed on the holder (22)；
The push rod assembly (12) includes push rod (123) and the parking cam (121) for being connected to the push rod (123) one end, described to push away
It is installed in the installation through-hole to the other end clearance fit of bar (123), the parking cam (121) is used for and the parking
Arm assembly contacts.
8. the speed changer of vehicle according to claim 7 hydraulic pressure halting mechanism, which is characterized in that the push rod (123)
Including the first push rod section (1231) and the second push rod section (1232) extended perpendicular to each other, described one end is located at first push rod
In section (1231), the other end is located on the second push rod section (1232), is provided in the axial direction on described one end
The first lug (1234) and the second lug (1235) for being spaced and being staggered, the first lug (1234) is compared to described
Second lug (1235) further from the second push rod section (1232), the installation through-hole include round main through-hole and with the circle
The secondary through-hole of the main through-hole connection of shape, the pair through-hole can allow for the first lug (1234) to pass through, and described round main logical
The internal diameter in hole is slightly larger than the outer diameter of the first push rod section (1231)；It is formed on the second push rod section (1232) opposite to each other
Third lug (1236) and the 4th lug (1237), the push rod assembly (12) further include be set in compressive state it is described
Parking spring (122) in second push rod section (1232), one end of the parking spring (122) and the third lug (1236)
It offsets with the 4th lug (1237), the other end offsets with the parking cam (121).
9. the speed changer of vehicle according to claim 7 hydraulic pressure halting mechanism, which is characterized in that the parking arm assembly
Including relative to each other and spaced parking arm (14) and locating piece (13), the parking arm (14) is configured to around rotation
Axis pin (15) rotate, the parking arm (14) away from the side of the locating piece (13) towards the parking gear (2), it is described
Parking cam (121), which extend between the parking arm (14) and locating piece (13) and is formed as edge, extend into the parking arm
(14) the direction outer diameter between locating piece (13) is gradually reduced, and is set as being located at non-parking position when the parking cam (121)
When setting, the parking arm (14) detaches with the parking gear (2), and when the parking cam (121) extend into the parking
When depth between arm (14) and locating piece (13) increases and reaches parking position, stayed described in parking cam (121) promotion
Vehicle arm (14) is rotated around the rotary pin shaft (15) and is engaged with the parking gear (2)；The parking arm assembly further includes set
It is located on the rotary pin shaft (15) to apply the spring force moved towards the locating piece (13) to the parking arm (14)
Return spring.
10. the speed changer of vehicle according to claim 7 hydraulic pressure halting mechanism, which is characterized in that the hydraulic pressure executes
Assembly further includes the shift sensor (3) of the real time position for detecting the piston rod (10), the shift sensor (3)
Signal output end is electrically connected to the signal input part of the electronic control unit；The shift sensor (3) includes being installed on institute
The portion to be detected for stating the detection detecting means (31) on the shell of speed changer and being installed on the holder (22), the detection sensing
Portion (31) and the portion to be detected are positioned opposite to each other.
11. a kind of vehicle, which is characterized in that be provided with the speed changer liquid of the vehicle described in any one of claim 1-10
Press halting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721847538.1U CN208041118U (en) | 2017-12-26 | 2017-12-26 | The speed changer of vehicle hydraulic pressure halting mechanism and with its vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721847538.1U CN208041118U (en) | 2017-12-26 | 2017-12-26 | The speed changer of vehicle hydraulic pressure halting mechanism and with its vehicle |
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| CN208041118U true CN208041118U (en) | 2018-11-02 |
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|---|---|---|---|
| CN201721847538.1U Active CN208041118U (en) | 2017-12-26 | 2017-12-26 | The speed changer of vehicle hydraulic pressure halting mechanism and with its vehicle |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219982A (en) * | 2019-06-06 | 2019-09-10 | 苏州东风精冲工程有限公司 | Gear identification switch for automobile hydraulic control device |
| CN111075925A (en) * | 2019-12-30 | 2020-04-28 | 宁波吉利汽车研究开发有限公司 | Hydraulic control parking mechanism, control method and vehicle |
| CN112212004A (en) * | 2019-07-10 | 2021-01-12 | 广州汽车集团股份有限公司 | Parking device for vehicle |
| CN112576746A (en) * | 2019-09-30 | 2021-03-30 | 日本电产株式会社 | Parking lock device and motor unit having the same |
| CN112576747A (en) * | 2019-09-30 | 2021-03-30 | 日本电产株式会社 | Parking lock device and motor unit having the same |
| CN113167381A (en) * | 2018-12-17 | 2021-07-23 | 宁波吉利汽车研究开发有限公司 | Transmission for vehicle |
| CN114321358A (en) * | 2021-12-31 | 2022-04-12 | 中国第一汽车股份有限公司 | Hydraulic push rod parking assembly and transmission |
| WO2022126606A1 (en) * | 2020-12-18 | 2022-06-23 | Fte Automotive (Taicang) Co., Ltd. | A parking lock system and a motor vehicle and/or an electric vehicle including such parking lock system |
| WO2023008229A1 (en) * | 2021-07-29 | 2023-02-02 | 株式会社アツミテック | Parking lock unit and manufacturing method thereof |
| WO2024032841A1 (en) * | 2022-08-08 | 2024-02-15 | Schaeffler Technologies AG & Co. KG | Parking lock for a vehicle gearbox |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113167381A (en) * | 2018-12-17 | 2021-07-23 | 宁波吉利汽车研究开发有限公司 | Transmission for vehicle |
| CN110219982A (en) * | 2019-06-06 | 2019-09-10 | 苏州东风精冲工程有限公司 | Gear identification switch for automobile hydraulic control device |
| CN112212004B (en) * | 2019-07-10 | 2022-04-01 | 广州汽车集团股份有限公司 | Parking device for vehicle |
| CN112212004A (en) * | 2019-07-10 | 2021-01-12 | 广州汽车集团股份有限公司 | Parking device for vehicle |
| CN112576746B (en) * | 2019-09-30 | 2023-02-28 | 日本电产株式会社 | Parking lock device and motor unit having the same |
| CN112576746A (en) * | 2019-09-30 | 2021-03-30 | 日本电产株式会社 | Parking lock device and motor unit having the same |
| CN112576747A (en) * | 2019-09-30 | 2021-03-30 | 日本电产株式会社 | Parking lock device and motor unit having the same |
| CN111075925B (en) * | 2019-12-30 | 2021-10-26 | 宁波吉利汽车研究开发有限公司 | Hydraulic control parking mechanism, control method and vehicle |
| CN111075925A (en) * | 2019-12-30 | 2020-04-28 | 宁波吉利汽车研究开发有限公司 | Hydraulic control parking mechanism, control method and vehicle |
| WO2022126606A1 (en) * | 2020-12-18 | 2022-06-23 | Fte Automotive (Taicang) Co., Ltd. | A parking lock system and a motor vehicle and/or an electric vehicle including such parking lock system |
| WO2023008229A1 (en) * | 2021-07-29 | 2023-02-02 | 株式会社アツミテック | Parking lock unit and manufacturing method thereof |
| CN114321358A (en) * | 2021-12-31 | 2022-04-12 | 中国第一汽车股份有限公司 | Hydraulic push rod parking assembly and transmission |
| WO2024032841A1 (en) * | 2022-08-08 | 2024-02-15 | Schaeffler Technologies AG & Co. KG | Parking lock for a vehicle gearbox |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191125 Address after: 071000 No.75, Dongsheng Road, Lianchi District, Baoding City, Hebei Province Patentee after: Beehive transmission technology Hebei Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |
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| TR01 | Transfer of patent right |