CN213479155U

CN213479155U - Parking drive arrangement and vehicle

Info

Publication number: CN213479155U
Application number: CN202021537498.2U
Authority: CN
Inventors: 胡如现; 刘剑; 方传传; 王东剑; 刘德超
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-06-18
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a vehicle arresting gear technical field, concretely relates to parking drive arrangement and vehicle. The parking driving device comprises a shell, a rotating shaft arranged on the shell, a magnetic ring arranged on the rotating shaft in a sleeved mode and a sensor arranged corresponding to the magnetic ring, wherein the shell is used for supporting and fixing the rotating shaft, the magnetic ring rotates along with the rotating shaft, the magnetic field intensity of the magnetic ring in the rotating process can change, the sensor can sense the magnetic field intensity change signal of the magnetic ring, the rotating shaft can be measured to rotate by 1% of angle precision through analog-to-digital conversion, and the requirement for the rotating angle precision of the parking driving device when a parking mechanism is executed is met. The parking drive device is suitable for being installed in a vehicle, so that the vehicle has a parking function and a manual release function of the parking drive device, and the complexity of a vehicle system can be reduced, and the cost of the vehicle can be reduced.

Description

Parking drive arrangement and vehicle

Technical Field

The utility model relates to a vehicle arresting gear technical field, concretely relates to parking drive arrangement and vehicle.

Background

The parking brake has the function of providing resistance for the automobile when the automobile is parked, so that the automobile does not slide. In parking braking, the transmission shaft of the motor is usually locked. The parking motor has a short rotation stroke, and needs to accurately control the circumferential position of the motor rotor in order to better realize the parking braking function, but the accuracy of obtaining the circumferential position of the motor rotor in the prior art is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a parking drive arrangement and vehicle to solve the lower problem of the precision that obtains electric motor rotor circumferential position among the prior art.

In order to solve the problem, the utility model provides a parking drive device, including the casing, with locate pivot on the casing, the cover is established pivot epaxial magnetic ring, and correspond the sensor that the magnetic ring set up.

Further, the sensor is a linear hall element.

Furthermore, the magnetic ring and the sensor are arranged close to the tail end of the rotating shaft.

Furthermore, the parking driving device further comprises a circuit board connected with the sensor, the magnetic ring, the sensor and the circuit board are installed in the shell, a through hole is formed in the circuit board, and the rotating shaft penetrates through the through hole.

Further, the head end and the tail end of the rotating shaft respectively extend out of the shell, and the part of the tail end extending out of the shell is provided with an inner hexagonal hole or an outer hexagonal head or the inner hexagonal hole and the outer hexagonal head.

Further, the casing includes procapsid and backshell, be equipped with preceding shell mounting hole on the procapsid, be provided with the backshell mounting hole on the backshell, the pivot is worn to locate preceding shell mounting hole with in the backshell mounting hole, the pivot with the procapsid with backshell sliding connection.

Further, the parking driving device further comprises a magnetic shoe, and the magnetic shoe is attached to the circumferential surface of the rotating shaft.

Further, parking drive arrangement still includes around the stator core of the axial setting of pivot, stator core adopts concentrated winding.

The utility model also provides a vehicle has foretell parking drive arrangement.

The utility model provides a parking drive arrangement, including the casing, locate pivot on the casing, the cover is established pivot on the magnetic ring, and correspond the sensor that the magnetic ring set up, the casing is used for supporting and fixing pivot, the magnetic ring is followed the pivot is rotated, and the magnetic field intensity that the magnetic ring rotated the in-process can change, and the sensor can respond to the magnetic field intensity change signal of magnetic ring, through analog-to-digital conversion, just can record the pivot and rotate 1% angle precision, satisfies parking mechanism and carries out to parking drive arrangement rotation angle required precision when carrying out.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a sectional view of a parking driving device according to the present invention;

fig. 2 is a schematic structural view of a perspective view of the parking drive apparatus of the present invention;

description of reference numerals:

1-a rotating shaft; 2-a magnetic ring; 3-a sensor; 4-a circuit board; 5-head end; 6-tail end; 7-hexagon socket; 8-outer hexagon head; 9-a front housing; 10-a rear housing; 11-magnetic shoe; 12-a stator core; 13-installation cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 and 2, the parking drive device in this embodiment includes a housing, a rotating shaft 1, a magnetic ring 2, a sensor 3, a circuit board 4, a magnetic shoe 11, and a stator core 12.

The casing comprises a front casing 9 and a rear casing 10, an opening of the front casing 9 and an opening of the rear casing 10 are in butt joint to form the whole casing, a mounting cavity 13 is defined between the front casing 9 and the rear casing 10, the casing is used for protecting components in the mounting cavity 13, and the outer contour shape of the casing is matched with the mounting position of the parking driving device.

In this embodiment, the rotating shaft 1 penetrates through the housing. The front shell 9 is provided with a front cylindrical structure extending outwards, the inner side of the front cylindrical structure is a front shell mounting hole, the rear shell 10 is provided with a rear cylindrical structure extending outwards, the inner side of the rear cylindrical structure is a rear shell mounting hole, and the axes of the front shell mounting hole and the rear shell mounting hole coincide. The pivot 1 is located in the installation cavity 13, the head end 5 of pivot 1 passes the front shell mounting hole stretches out the outside of procapsid 9, the head end 5 of pivot 1 is used for being connected with outside kinetic energy input structure, and outside kinetic energy input structure drives the rotation of pivot 1. As shown in fig. 1, the head end 5 of the rotating shaft 1 has a stepped structure, and the front cylindrical structure also has a stepped structure adapted to the head end 5. The tail end 6 of the rotating shaft 1 penetrates through the rear shell mounting hole and extends out of the outer side of the rear shell 10, the part, extending out of the rear shell 10, of the tail end 6 is provided with the inner hexagonal hole 7 and the outer hexagonal head 8, and tools suitable for being used by matching the inner hexagonal hole 7 with the outer hexagonal head 8 are more, so that the rotating shaft 1 can be moved by multiple tools to rotate, and the manual release parking function is realized under the condition that the parking driving device is powered off or fails. More tools are suitable than the hexagon socket 7 or the hexagon socket head 8, and of course, only the hexagon socket 7 or the hexagon socket head 8 can be arranged according to the use requirement.

In this embodiment, in order to simplify the internal structure of the parking drive apparatus and reduce the number of assembly processes, a method of increasing the diameter of the rotating shaft 1, which is slidably connected to the front housing and the rear housing, is adopted. Specifically, the head end 5 is slidably connected with the hole wall of the front shell mounting hole, that is, the head end 5 is slidably connected with the inner wall of the front cylindrical structure; the tail end 6 is connected with the hole wall of the rear shell mounting hole in a sliding mode, namely the tail end 6 is connected with the inner wall of the rear cylindrical structure in a sliding mode. And the rotor punching sheet is eliminated, and the magnetic shoe 11 is directly attached to the circumferential surface of the rotating shaft 1. The connecting mode of the rotating shaft 1, the magnetic shoe 11, the front shell 9 and the rear shell 10 simplifies the internal structure of the parking driving device, reduces the types of motor parts, reduces the production cost, reduces the assembling procedures and effectively improves the assembling production efficiency.

In this embodiment, fixed mounting has circuit board 4 in the casing, circuit board 4 perpendicular to the axis setting of pivot 1, be equipped with the through-hole on the circuit board 4, pivot 1 wears to locate in the through-hole, not with circuit board 4 contact to prevent that pivot 1 from rotating the damage that causes circuit board 4. The circuit board is arranged at the position close to the tail end 6.

In order to obtain accurate data of the rotation angle of the rotating shaft 1, a magnetic ring 2 is sleeved on the rotating shaft 1, a sensor 3 is arranged at a position corresponding to the magnetic ring 2, and the sensor 3 is connected with the circuit board 4. Referring to fig. 1, the sensor 3 is horizontally disposed and close to the magnetic ring 2, and the sensor 3 is connected to the circuit board 4 at a position close to the through hole. The sensor 3 is a magnetic sensor capable of sensing the magnetic field of the magnetic ring 2, and in this embodiment, the sensor 3 is a linear hall element. In the parking driving device of the embodiment, the linear hall element can sense the magnetic field intensity signal of the magnetic ring 2, the accuracy of the rotation angle of the rotating shaft 1 by 1% can be measured through analog-to-digital conversion, and the requirement of the parking mechanism on the accuracy of the rotation angle of the parking driving device during execution is met.

As shown in fig. 1, the magnetic ring 2, the sensor 3 and the circuit board 4 are installed in the installation cavity 13, and the magnetic ring 2 is located on one side of the sensor 3 close to the head end 5. The magnetic ring 2 is a ring-shaped magnetizer. A linear hall element is a semiconductor magneto-electric device that operates using the hall effect. The linear hall element can detect a magnetic field and its change, and can be used in various fields related to the magnetic field. The linear Hall element has many advantages, and the linear Hall element has firm structure, small volume, light weight, long service life, convenient installation, small power consumption, high frequency (up to 1MHZ), vibration resistance, and resistance to pollution or corrosion of dust, oil stain, water vapor, salt mist and the like.

In this embodiment, the parking driving device is further provided with a stator core 12, the stator core 12 is disposed outside the rotating shaft 1 around the axial direction of the rotating shaft 1, the stator core 12 is specifically disposed outside the magnetic shoe 11, and the stator core 12 and the magnetic shoe 11 are disposed near the head end 5 relative to the magnetic ring 2; and the stator core 12 adopts a concentrated winding manner. The centralized winding is applied to a salient pole type stator, is usually wound into a rectangular coil, is wrapped and shaped by a warp yarn tape, is embedded on an iron core of a convex magnetic pole after being subjected to dip coating and drying treatment, and usually has one coil per pole, but a consequent pole (heteropole) form is also adopted.

The parking driving device in the embodiment can solve the problems that in the prior art, a parking motor of a ratchet pawl type parking mechanism of a vehicle uses a direct-current brushless or direct-current brush motor, a motor body does not have a structure for manually releasing a P-gear parking actuating mechanism, parking releasing action can be realized only by adding a new mechanism, and the system complexity degree is high and the cost is high.

In the use process of the parking driving device in the embodiment, the external kinetic energy input structure drives the rotating shaft 1 to rotate, and under the condition that the parking driving device is powered off or fails, various tools can be used for moving the rotating shaft 1 to rotate, so that the manual parking release function is realized.

The parking drive apparatus in the present embodiment is adapted to be mounted in a vehicle. When the parking drive device is installed in a vehicle, the vehicle has a parking function and a manual release function of the parking drive device, and the complexity of a vehicle system can be reduced and the vehicle cost can be reduced.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The parking driving device comprises a shell and a rotating shaft (1) arranged on the shell, and is characterized by further comprising a magnetic ring (2) sleeved on the rotating shaft (1) and a sensor (3) arranged corresponding to the magnetic ring (2).

2. Parking drive according to claim 1, characterized in that the sensor (3) is a linear hall element.

3. Parking drive according to claim 1, characterized in that the magnetic ring (2) and the sensor (3) are arranged close to the trailing end (6) of the shaft (1).

4. The parking driving device according to any one of claims 1-3, further comprising a circuit board (4) connected to the sensor (3), wherein the magnetic ring (2), the sensor (3) and the circuit board (4) are mounted in the housing, a through hole is formed in the circuit board (4), and the rotating shaft (1) is disposed through the through hole.

5. Parking drive according to claim 1, characterized in that the head end (5) and the tail end (6) of the spindle (1) each extend out of the housing, the part of the tail end (6) extending out of the housing having a socket hex (7), or an outer hex head (8), or a socket hex (7) and an outer hex head (8).

6. The parking drive device according to claim 1, wherein the housing includes a front housing (9) and a rear housing (10), a front housing mounting hole is provided on the front housing (9), a rear housing mounting hole is provided on the rear housing (10), the rotating shaft (1) is inserted into the front housing mounting hole and the rear housing mounting hole, and the rotating shaft (1) is slidably connected with the front housing (9) and the rear housing (10).

7. Parking drive according to claim 6, further comprising a magnetic shoe (11), said magnetic shoe (11) being affixed to a circumferential surface of said spindle (1).

8. Parking drive according to claim 1, further comprising a stator core (12) arranged around the axial direction of the rotating shaft (1), the stator core (12) employing concentrated windings.

9. A vehicle characterized by comprising the parking drive apparatus according to any one of claims 1 to 8.