CN217381578U

CN217381578U - Vehicle electron parking mechanism and vehicle

Info

Publication number: CN217381578U
Application number: CN202221296842.2U
Authority: CN
Inventors: 袁军伟; 徐刚; 刘爽; 马霁旻; 肖月辉
Original assignee: Zhixin Technology Co Ltd
Current assignee: Zhixin Technology Co Ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-06
Anticipated expiration: 2032-05-26

Abstract

The utility model discloses a vehicle electron parking mechanism and vehicle relates to vehicle parking technical field. Vehicle electronic parking mechanism includes: a parking motor; the gear reduction mechanism comprises a driving gear and a driven gear which are meshed with each other, and the driving gear is connected with the parking motor; the parking gear is arranged on the power transmission shaft; and the locking mechanism comprises a guide rail groove, a sliding block, a pivot and a locking piece, the guide rail groove is formed in the end face of the driven gear, the sliding block is in sliding fit with the guide rail groove, the pivot is fixedly connected with an environmental structure, the pivot is in rotating fit with the locking piece, the locking piece is further connected with the sliding block, and a locking head is arranged on the locking piece. The gear reduction mechanism can reduce the rotating speed of the parking motor and improve the torque, and the transmission efficiency is high; through the integration of driven gear and guide rail groove, reduced spare part quantity, reduced parking mechanism's complexity, overall structure is simple reliable.

Description

Vehicle electron parking mechanism and vehicle

Technical Field

The utility model relates to a vehicle parking technical field specifically relates to a vehicle electron parking mechanism and vehicle.

Background

Present automatic gear car, including hybrid vehicle and pure electric vehicles, safe and reliable's requirement when in order to satisfy the vehicle and stop, parking system is indispensable partly, when the car stops to put into P and keeps off, and the completion locking action that parking mechanism can be smooth makes the stable and long-time parking of vehicle on appointed position, even if the parking also can not automatic gear-disengaging on the ramp, causes the parking function inefficacy. When the automobile is ready to start and exit the P gear, the parking mechanism can smoothly release the locking. Even on a slope, proper gear-releasing force can complete gear-releasing action, and the safety of the vehicle is ensured. The parking mechanism is integrated in the gearbox, the structure of the parking mechanism is designed into different structural forms according to different internal space arrangements of the gearbox, and the parking mechanism needs to meet certain strength and reliability requirements due to the fact that the parking mechanism relates to vehicle safety.

The existing motor-driven parking mechanism adopts a worm and gear speed reducing mechanism, is low in transmission efficiency and large in power loss, needs to select a parking motor with larger power in order to guarantee a reliable parking function, is large in energy consumption, influences the endurance mileage of a pure electric vehicle, is large in size and heavy in weight, and is not beneficial to arrangement and installation on the vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned background art not enough, provide a vehicle electron parking mechanism and vehicle.

In a first aspect, there is provided a vehicle electronic parking mechanism comprising:

a parking motor;

the gear reduction mechanism comprises a driving gear and a driven gear which are meshed with each other, and the driving gear is connected with the parking motor;

the parking gear is arranged on the power transmission shaft; and

the locking mechanism comprises a guide rail groove, a sliding block, a pivot and a locking piece, wherein the guide rail groove is formed in the end face of the driven gear, the guide rail groove comprises an unlocking section and a locking section which are continuous, the sliding block is arranged in the guide rail groove and is in sliding fit with the guide rail groove, the pivot is fixedly connected with an environment structure, the pivot is in rotating fit with the locking piece, the locking piece is also connected with the sliding block, and a locking head is arranged on the locking piece; the driven gear rotates to drive the sliding block to slide in the locking section or the unlocking section, and meanwhile, the locking piece rotates around the pivot, so that the locking head is meshed with or separated from the tooth groove of the parking gear.

Further, the unlocking section and the locking section are both arc-shaped grooves.

Further, the unlocking section comprises a first arc-shaped groove, the locking section comprises a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are concentric with the driven gear, the radius of the first arc-shaped groove is larger than that of the second arc-shaped groove, and a transition groove communicated with the second arc-shaped groove is further arranged between the first arc-shaped groove and the second arc-shaped groove.

The beneficial effects of the further scheme are as follows: the slide block slides more smoothly in the guide rail groove under the action of the transition groove.

Furthermore, the slider is including setting up cylindric traveller in the guide rail inslot, first arc wall, second arc wall and the groove width of passing the aqueduct is all the same, the cambered surface lateral wall of traveller with first arc wall, second arc wall and the cell wall of passing the aqueduct offsets.

Further, the locking piece comprises a pawl, the locking head is arranged at one end of the pawl, and the pivot and the sliding block are arranged at the other end of the pawl.

Further, the locking piece comprises a rack, a locking rod and a limiting piece; the pivot and the sliding block are arranged at one end of the rack, and the other end of the rack is rotatably connected with one end of the locking rod; the other end of the locking rod is provided with the locking head; the locating part is connected with the environment structure and surrounds the locking rod to limit the radial displacement of the locking rod.

Further, the locating part comprises a sliding bearing, and the sliding bearing is coaxially sleeved on the locking rod.

Further, the frame with the locking pole is through round pin axle swivelling joint.

Furthermore, the frame includes the set-square, pivot, slider and round pin axle respectively one-to-one setting are in the three angle end of set-square.

In a second aspect, a vehicle is further provided, and the vehicle comprises the vehicle electronic parking mechanism.

Compared with the prior art, the utility model has the advantages as follows:

the parking motor provides a power source, so that the complex structure of a manual pull-rope type parking mechanism is avoided, a driver does not need to provide driving force, the automatic control is convenient to realize, and the operating comfort of the driver is improved; the gear reduction mechanism can reduce the rotating speed of the parking motor and improve the torque, and the transmission efficiency is high; the guide rail groove is formed in the driven gear, so that the sliding block can slide in the guide rail groove conveniently, the driven gear and the guide rail groove are integrated, the number of parts is reduced, the complexity of the parking mechanism is reduced, and the whole structure is simple and reliable.

Drawings

Fig. 1 is a schematic perspective view of a locking member engaged with a tooth groove of a parking gear according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a front view schematic of the driven gear of FIG. 1;

fig. 4 is a perspective view illustrating a structure in which a locking member of fig. 1 is separated from a tooth groove of a parking gear.

Fig. 5 is a schematic perspective view of a locking member engaged with a tooth groove of a parking gear according to another embodiment of the electronic parking mechanism of the present invention;

FIG. 6 is a schematic cross-sectional view of FIG. 5;

fig. 7 is a perspective view illustrating a structure in which a locking member of fig. 5 is separated from a tooth groove of a parking gear.

In the figure: 1-a parking motor; 2-a drive gear; 3-a driven gear; 4-a parking bearing; 5-a gear shaft; 6-a slide block; 7-a pivot; 8-a lock; 9-a parking gear; 10-guide rail grooves; 11-a first arc-shaped slot; 12-a transition groove; 13-a second arc-shaped slot; 14-a frame; 15-a locking lever; 16-a limit piece; 17-axle pin.

Detailed Description

Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the specific embodiments, it will be understood that it is not intended to limit the invention to the described embodiments. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may be implemented by any functional block or functional arrangement, and that any functional block or functional arrangement may be implemented as a physical entity or a logical entity, or a combination of both.

In order to better understand the present invention for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Note that: the following examples are merely one specific example, and are not intended to limit the embodiments of the present invention to the particular steps, values, conditions, data, sequences, etc., described below. Those skilled in the art can, upon reading this specification, utilize the inventive concepts to construct additional embodiments not described in the specification.

The parking mechanism on the existing vehicle is provided with a manual pull cable type parking mechanism and a motor-driven parking mechanism, the manual pull cable type parking mechanism is driven by a gear shifting handle operated by a driver to provide driving force, a parking pawl is driven by a pull cable to move so as to execute the locking or unlocking function of the parking mechanism, a pull cable needs to be arranged to be connected to a front engine room from the control handle in a cab, the structure is complex, the occupied space is large, and meanwhile, the parking driving force is derived from the manual control force of the driver, so that the fatigue of the driver is easily caused, and the driving comfort of the vehicle is influenced; the motor-driven parking mechanism is provided with driving force by a parking motor, the locking or unlocking function of the parking mechanism is executed, and the speed reducing mechanism of the parking motor adopts a worm and gear type, so that the structure is high in power loss, low in transmission efficiency and not suitable for new energy automobiles.

The utility model discloses a motor-driven parking mechanism has avoided manual pull rope formula parking mechanism's complex construction, has improved driver's operation portability, and reduction gears adopts the external toothing cylindrical gear, simple structure, and transmission efficiency is high, and guide rail groove and gear integration are integrative, and whole mechanism is small, narrow and small space on can the make full use of vehicle, convenient nimble arranging the installation.

With reference to fig. 1-3, the electronic parking mechanism for vehicle of the present invention comprises: parking motor 1, gear reduction mechanism, parking gear 9 and locking mechanism.

The gear reduction mechanism comprises a driving gear 2 and a driven gear 3 which are meshed with each other, and the driving gear 2 is connected with the parking motor 1. The output shaft of parking motor 1 is connected with driving gear 2 for drive driving gear 2 rotates, and driving gear 2's rotation drives driven gear 3 and rotates, and driving gear 2's diameter is less than driven gear 3's diameter, thereby realizes slowing down and improves the moment of torsion.

In addition, a parking bearing 4 is coaxially arranged on the driven gear 3, and a gear shaft 5 is sleeved in the parking bearing 4.

The parking gear 9 is mounted on the power transmission shaft. In fact, the installation position of the parking mechanism of the present embodiment depends on the position of the existing power transmission shaft of the vehicle. Namely, after the parking gear 9 is installed on the power transmission shaft, the position of the gear reduction mechanism is determined according to the stroke of the locking mechanism, and finally the position of the parking motor 1 is determined.

The locking mechanism comprises a guide rail groove 10, a sliding block 6, a pivot 7 and a locking piece 8, the guide rail groove 10 is arranged on the end face of the driven gear 3, the guide rail groove 10 comprises an unlocking section and a locking section which are continuous, the sliding block 6 is arranged in the guide rail groove 10 and is in sliding fit with the guide rail groove 10, the pivot 7 is fixedly connected with an environmental structure, the pivot 7 is in rotating fit with the locking piece 8, the locking piece 8 is also connected with the sliding block 6, and a locking head is arranged on the locking piece 8; the driven gear 3 rotates to drive the sliding block 6 to slide in the locking section or the unlocking section, and meanwhile, the locking piece 8 rotates around the pivot 7, so that the locking head is meshed with or separated from the tooth grooves of the parking gear 9.

Referring to fig. 3, the unlocking section and the locking section are both arc-shaped grooves. The unlocking section comprises a first arc-shaped groove 11, the locking section comprises a second arc-shaped groove 13, the first arc-shaped groove 11 and the second arc-shaped groove 13 are concentric with the driven gear 3, the radius of the first arc-shaped groove 11 is larger than that of the second arc-shaped groove 13, and a transition groove 12 communicated with each other is further arranged between the first arc-shaped groove 11 and the second arc-shaped groove 13. The sliding block 6 comprises a cylindrical sliding column arranged in the guide rail groove 10, the widths of the first arc-shaped groove 11, the second arc-shaped groove 13 and the transition groove 12 are the same, and the arc-shaped side wall of the sliding column is abutted to the groove walls of the first arc-shaped groove 11, the second arc-shaped groove 13 and the transition groove 12.

The locking member 8 of this embodiment comprises a pawl, one end of which is provided with the locking head and the other end of which is provided with the pivot 7 and the slider 6.

As shown in fig. 1, the locking head of the pawl engages in the tooth groove of the parking gear 9, and the parking gear 9 cannot rotate. In this state, the slide 6 is in the locking section of the guide groove 10, i.e. the slide 6 is in the second arc-shaped groove 13. When the locking is required to be released, the parking motor 1 drives the driving gear 2 to rotate to drive the driven gear 3 to rotate, the sliding block 6 reaches the unlocking section after passing through the aqueduct 12, in the process, the pawl continuously rotates around the pivot 7, the locking head of the pawl is separated from the tooth groove of the parking gear 9, the locking mechanism is separated from the parking gear 9, the separated state is shown in fig. 4, in the state, the parking gear 9 is in the unlocking state, and the power transmission shaft can rotate.

As shown in fig. 5 and 6, the electronic parking mechanism of the present invention can also adopt another structure form, and also includes a parking motor 1, a gear reduction mechanism, a parking gear 9 and a locking mechanism. The locking mechanism also comprises a guide rail groove 10, a slide block 6, a pivot 7 and a locking piece 8, and is different from the above embodiment in that the specific structure of the locking piece 8 is different.

The lock member 8 in this embodiment includes a frame 14, a lock lever 15, and a stopper member 16; one end of the frame 14 is provided with the pivot 7 and the sliding block 6, and the other end of the frame 14 is rotatably connected with one end of the locking rod 15; the other end of the locking rod 15 is provided with the locking head; the limiting element 16 is connected to the environment and surrounds the locking rod 15 for limiting the radial displacement of the locking rod 15. The limiting member 16 includes a sliding bearing, and the sliding bearing is coaxially sleeved on the locking rod 15. Taking fig. 5 as an example, the sliding bearing can limit the lateral displacement of the locking rod 15, so that the locking rod 15 can only slide vertically, and the locking or unlocking of the parking gear 9 is realized.

The frame 14 is rotatably connected with the locking rod 15 through a pin shaft.

Specifically, the frame 14 includes a triangular plate, and the pivot 7, the slider 6 and the pin shaft are respectively arranged at three corner ends of the triangular plate in a one-to-one correspondence manner.

In the embodiment, the driven gear 3 rotates to drive the sliding block 6 to slide, and simultaneously, the frame 14 slides along with the sliding, and the frame 14 rotates around the pivot 7 due to the limitation of the pivot 7, so that the rotating motion of the frame 14 is converted into the linear reciprocating motion of the locking rod 15 under the action of the pivot 17 and the limiting piece 16.

The locking rod 15 in the embodiment shown in fig. 5 is vertically arranged, and of course, the vertical arrangement depends on the relative position of the parking gear 9 and the driven gear 3, in this embodiment, since the parking gear 9 is arranged below the driven gear 3, the locking rod 15 is arranged to be vertically arranged, the locking rod 15 is vertically moved, when the lower end of the locking rod 15 is inserted into the tooth socket of the parking gear 9, the locking of the parking gear 9 is realized, and when the lower end of the locking rod 15 is separated from the tooth socket of the parking gear 9, the unlocking of the parking gear 9 is realized. The lower end of the locking lever 15 may be provided with a claw structure to facilitate better locking with the tooth grooves of the parking gear 9.

As shown in fig. 7, the lower end of the locking rod 15 is separated from the tooth grooves of the parking gear 9 and is located above the parking gear 9, and the rotation of the parking gear 9 is not affected, and in this state, the parking gear 9 is in the unlocked state, and the power transmission shaft is rotatable.

Based on same utility model the design, the utility model discloses still provide a vehicle, vehicle electron parking mechanism including any one of the above-mentioned embodiments.

The utility model provides a power source through the parking motor 1, avoids the complex structure of a manual pull cable type parking mechanism, does not need a driver to provide driving force, is convenient for realizing automatic control, and improves the operation comfort of the driver; the rotating speed of the parking motor 1 can be reduced and the torque can be improved through the gear reduction mechanism, so that the transmission efficiency is high; the guide rail groove 10 is formed in the driven gear 3, so that the sliding block 6 can slide in the guide rail groove 10 conveniently, the driven gear 3 and the guide rail groove 10 are integrated, the number of parts is reduced, the complexity of the parking mechanism is reduced, and the whole structure is simple and reliable.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electronic parking mechanism for a vehicle, comprising:

a parking motor;

the parking gear is arranged on the power transmission shaft; and

2. The electric parking mechanism for vehicle according to claim 1, wherein said unlocking section and said locking section are both arc-shaped slots.

3. The electronic parking mechanism for vehicle according to claim 2, wherein the unlocking section comprises a first arc-shaped groove, the locking section comprises a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are concentric with the driven gear, the radius of the first arc-shaped groove is larger than that of the second arc-shaped groove, and a transition groove communicated with the first arc-shaped groove and the second arc-shaped groove is further arranged between the first arc-shaped groove and the second arc-shaped groove.

4. The electronic parking mechanism for vehicle according to claim 3, wherein the slider comprises a cylindrical sliding pillar disposed in the guide rail groove, the widths of the first arc-shaped groove, the second arc-shaped groove and the transition groove are the same, and the arc-shaped side wall of the sliding pillar abuts against the groove walls of the first arc-shaped groove, the second arc-shaped groove and the transition groove.

5. The electronic parking mechanism for a vehicle according to claim 1, wherein said lock member includes a pawl, one end of said pawl is provided with said lock head, and the other end of said pawl is provided with said pivot shaft and said slider.

6. The electronic parking mechanism for a vehicle according to claim 1, wherein the lock member includes a frame, a lock rod, and a stopper; the pivot and the sliding block are arranged at one end of the rack, and the other end of the rack is rotatably connected with one end of the locking rod; the other end of the locking rod is provided with the locking head; the locating part is connected with the environment structure and surrounds the locking rod to limit the radial displacement of the locking rod.

7. The vehicle electric parking mechanism according to claim 6, wherein the stopper includes a slide bearing coaxially fitted over the lock lever.

8. The electronic parking mechanism for vehicle according to claim 6, wherein the frame is rotatably connected to the lock lever by a pin.

9. The electronic parking mechanism for vehicle according to claim 8, wherein the frame comprises a triangular plate, and the pivot, the slider and the pin are respectively arranged at three corner ends of the triangular plate in a one-to-one correspondence manner.

10. A vehicle characterized by comprising the vehicular electronic parking mechanism according to any one of claims 1 to 9.