CN217451143U - Cleaning device for wheel speed sensor, wheel speed sensor assembly and vehicle - Google Patents

Abstract

The utility model relates to a cleaning device, fast sensor assembly of wheel and vehicle for fast sensor of wheel, the fast sensor of wheel includes magnetic encoder and sensor body, cleaning device includes installed part and cleans the piece, the installed part is used for installing on the sensor body, cleans the piece and connects on the installed part and set up to extend towards the magnetic drum of magnetic encoder, cleans the piece and is used for cleaning the impurity on the magnetic drum when magnetic encoder rotates. Through above-mentioned technical scheme, install the installed part on the sensor body, and install on the installed part and clean the piece, clean the magnetic drum extension of piece orientation magnetic encoder to can clean the impurity on the magnetic drum when magnetic encoder rotates, that is to say, clean the piece and can sweep the impurity that adsorbs on the magnetic drum, thereby can avoid rotating the in-process at magnetic encoder, the impurity that adsorbs on the magnetic drum causes the interference to the sensitivity of sensor body, thereby promote the measuring accuracy of the fast sensor of wheel.

Description

Cleaning device for wheel speed sensor, wheel speed sensor assembly and vehicle

Technical Field

The present disclosure relates to the field of vehicle technology, and in particular, to a cleaning device for a wheel speed sensor, a wheel speed sensor assembly and a vehicle.

Background

The wheel speed sensor generally comprises two parts, one part is a magnetic encoder, the other part is a sensor body, the magnetic encoder is installed on a hub bearing and can rotate along with the hub bearing, the sensor body is provided with a detection part which is arranged opposite to a magnetic drum of the magnetic encoder, and in the process that the magnetic encoder rotates along with the hub bearing, the detection part can detect the speed of the rotating speed of the wheel according to the change of the heating magnetic resistance of the magnetic drum. However, since the vehicle using environment of the user is very complicated, in the actual vehicle using process, external impurities often invade the magnetic encoder, and when the external impurities rotate along with the magnetic encoder, the sensitivity of the sensor body is affected, so that the signal fault of the sensor body is caused.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a sweeping device for a wheel speed sensor, a wheel speed sensor assembly and a vehicle to solve technical problems in the related art.

In order to achieve the above object, according to a first aspect of the present disclosure, there is provided a cleaning device for a wheel speed sensor including a magnetic encoder and a sensor body, the cleaning device including a mounting member for mounting on the sensor body and a cleaning member connected to the mounting member and disposed to extend toward a drum of the magnetic encoder, the cleaning member being for cleaning foreign substances on the drum when the magnetic encoder rotates.

Alternatively, the cleaning member may be provided to protrude from the mounting member toward a direction close to the drum, and one end of the cleaning member may be in contact with the drum.

Optionally, the mounting member includes a first side plate and two second side plates respectively located at two ends of the first side plate, the first side plate and the two second side plates jointly form a U shape, the mounting member is used for being connected to the sensor body in a clamping manner, the first side plate is located on one side of the sensor body away from the magnetic drum, and the cleaning member is connected to one side of the second side plate away from the sensor body.

Optionally, the number of the cleaning pieces is two, and the two cleaning pieces are respectively connected to the two second side plates.

Optionally, the cleaning member is removably attached to the mounting member.

Optionally, the sweeping part is provided with a first fastening hole, the mounting part is provided with a second fastening hole, and the first fastening hole and the second fastening hole are used for allowing a fastening part to pass through.

Optionally, the sweeper is made of rubber; or the cleaning piece is a cleaning brush.

According to a second aspect of the present disclosure, there is provided a wheel speed sensor assembly, including a wheel speed sensor and a cleaning device for the wheel speed sensor as described above, the wheel speed sensor assembly includes a sensor body and a magnetic encoder, the magnetic encoder is configured to be mounted on a hub bearing and capable of rotating with the hub bearing, a detection portion of the sensor body is disposed opposite to a magnetic drum of the magnetic encoder, and a mounting member of the cleaning device is mounted on the sensor body.

Optionally, the mounting member is removably connected to the sensor body.

Optionally, the mount is snap-fit to the sensor body.

According to a third aspect of the present disclosure, there is provided a vehicle comprising a wheel bearing and a wheel speed sensor assembly as described above, the magnetic encoder of the wheel speed sensor assembly being mounted on the wheel bearing.

Through above-mentioned technical scheme, install the installed part on the sensor body, and install on the installed part and clean the piece, clean the magnetic drum extension of piece orientation magnetic encoder to can clean the impurity on the magnetic drum when magnetic encoder rotates, that is to say, clean the piece and can sweep the impurity that adsorbs on the magnetic drum, thereby can avoid rotating the in-process at magnetic encoder, the impurity that adsorbs on the magnetic drum causes the interference to the sensitivity of sensor body, thereby promote the measuring accuracy of the fast sensor of wheel.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a perspective view of a sweeping device for a wheel speed sensor provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of a wheel speed sensor assembly coupled to a wheel hub bearing according to an exemplary embodiment of the present disclosure;

fig. 3 is an enlarged view of a portion a of fig. 2.

Description of the reference numerals

1-wheel speed sensor; 10-a magnetic encoder; 11-a magnetic drum; 20-a sensor body; 30-a cleaning device; 31-a mounting member; 310-a first side panel; 311-a second side panel; 32-a sweeping member; 40-hub bearing.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, "inside and outside" means inside and outside of the outline of the corresponding structure, and "far and near" means far and near from the corresponding structure. The above directional terms are merely for convenience in describing the present disclosure, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the present disclosure. In addition, it is to be understood that the terms "first," "second," and the like are used for distinguishing one element from another, and are not necessarily order nor importance.

Referring to fig. 1 to 3, in order to achieve the above object, according to a first aspect of the present disclosure, there is provided a cleaning device 30 for a wheel speed sensor, the wheel speed sensor 1 includes a magnetic encoder 10 and a sensor body 20, the cleaning device 30 includes a mounting member 31 and a cleaning member 32, the mounting member 31 is configured to be mounted on the sensor body 20, the cleaning member 32 is connected to the mounting member 31 and is disposed to extend toward a drum 11 of the magnetic encoder 10, and the cleaning member 32 is configured to clean foreign substances on the drum 11 when the magnetic encoder 10 rotates.

Through above-mentioned technical scheme, install installed part 31 on sensor body 20, and install on installed part 31 and clean piece 32, clean piece 32 and extend towards magnetic encoder 10's magnetic drum 11, and can clean the impurity on the magnetic drum 11 when magnetic encoder 10 rotates, that is to say, clean piece 32 and can sweep the impurity that adsorbs on magnetic drum 11, thereby can avoid in magnetic encoder 10 rotation process, the impurity that adsorbs on the magnetic drum 11 causes the interference to sensor body 20's sensitivity, thereby promote the measurement accuracy of wheel speed sensor 1.

In order to enhance the cleaning effect of the foreign substances adsorbed on the drum 11, in the present disclosure, alternatively, as shown in fig. 1 to 3, the cleaning member 32 may be provided to protrude from the mounting member 31 toward the direction close to the drum 11, and one end of the cleaning member 32 may be in contact with the drum 11. That is, the cleaning element 32 is in direct contact with the drum 11, so that when the drum 11 rotates, the cleaning element 32 and the drum 11 move relatively, the cleaning element 32 can automatically clean the impurities adsorbed on the drum 11, and the cleaning element 32 in contact with the drum 11 can achieve a better cleaning effect on the drum 11, thereby preventing the impurities from interfering with the sensitivity of the sensor body 20.

Of course, in other embodiments provided by the present disclosure, the cleaning element 32 may be as close to the drum 11 as possible without directly contacting the drum 11, that is, there is a certain gap between the cleaning element 32 and the drum 11, so that on one hand, the cleaning element 32 can be ensured to clean the impurities adsorbed on the drum 11 and having a particle size exceeding a certain value, on the other hand, friction between the cleaning element 32 and the drum 11 can be avoided, the influence of the cleaning element 32 on the drum 11 can be reduced, and the service life of the cleaning element 32 can be prolonged.

Alternatively, in an embodiment provided by the present disclosure, as shown in fig. 1, the mounting member 31 may include a first side plate 310 and two second side plates 311 respectively located at two ends of the first side plate 310, the first side plate 310 and the two second side plates 311 together form a U shape, the mounting member 31 is configured to be clamped on the sensor body 20, the first side plate 310 is located on a side of the sensor body 20 away from the magnetic drum 11, and the cleaning member 32 is connected on a side of the second side plate 311 away from the sensor body 20. The installed part 31 forms the U-shaped, is convenient for more with this installed part 31 joint on sensor body 20 to, installed part 31 and sensor body 20 need not to fix installed part 31 through auxiliary parts such as bolt, nut on the one hand through the mode of above-mentioned joint, can retrench this cleaning device 30's structure, and on the other hand need not to reform transform the structure of sensor body 20, has the simple, convenient advantage of dismantlement of installation.

Here, it should be noted that, since the detection portion of the sensor body 20 is disposed opposite to the drum 11, in order to avoid the mount 31 blocking the detection portion, in the present disclosure, the first side plate 310 is located on a side of the sensor body 20 away from the drum 11; similarly, the cleaning element 32 is connected to the side of the second side plate 311 away from the sensor body 20, so that the second side plate 311 can be prevented from shielding the drum 11, the second side plate 311 is prevented from affecting the detection of the sensor body 20 on the drum 11, and the cleaning element 32 is connected to the side of the second side plate 311 away from the sensor, so that the cleaning element 32 can be more conveniently detached and maintained.

Moreover, in order to further improve the stability of the clamping connection between the mounting member 31 and the sensor body 20, in an embodiment provided by the present disclosure, a circle of inwardly recessed grooves may be formed on the sensor body 20, the mounting member 31 is clamped on the sensor, and the first side plate 310 and the two second side plates 311 are at least partially embedded in the grooves, and the groove wall of the annular groove may limit the movement of the mounting member 31, so as to improve the connection stability between the mounting member 31 and the sensor body 20.

Of course, the mounting member 31 may be formed in any structure that meets the requirement, for example, the mounting member 31 may also include only a mounting plate, a slot is formed on each side wall of the sensor body 20, the mounting plate is clamped in the slot on the side wall of the sensor body 20, wherein the cleaning member 32 is mounted at one end of the mounting plate close to the drum 11, in short, as long as the clamping with the sensor body 20 and the mounting and fixing of the cleaning member 32 can be achieved, and the specific shape and structure of the mounting member 31 are not limited in this disclosure.

In order to enhance the cleaning effect of the cleaning member 32 on the impurities on the drum 11, in an embodiment provided by the present disclosure, there may be two cleaning members 32, and the two cleaning members 32 are respectively connected to the two second side plates 311. That is to say, all be connected with one on every second curb plate 311 and clean a 32, like this, in the in-process that hub bearing 40 drove drum 11 and rotate, two cleaning 32 of connection on second curb plate 311 can clean drum 11 simultaneously, and, because all be connected with one cleaning 32 on every second curb plate 311, two cleaning 32 can clean from the front and back both sides of sensor body 20 simultaneously, that is to say, no matter hub bearing 40 is corotation or upset, the region that the detection portion of sensor body 20 detected all has cleaned a 32, further avoid adsorbing the impurity on drum 11 to cause the interference to the sensitivity of sensor body 20, promote the precision of sensor body 20.

Of course, the number of the cleaning elements 32 is not limited in the present disclosure, for example, in another embodiment provided in the present disclosure, the number of the cleaning elements 32 may be only one, the cleaning element 32 may be connected to any one of the second side plates 311, and the cleaning element 32 may also clean the impurities adsorbed on the drum 11 during the rotation of the drum 11 driven by the hub bearing 40.

The cleaning member 32 is attached detachably to the attachment member 31 in the present disclosure, because the cleaning member 32 is worn and corroded to some extent during cleaning of foreign matters over a long period of time, which affects the cleaning effect of the head drum 11. Cleaning piece 32 and installed part 31 between can dismantle the connection, like this, when cleaning piece 32 takes place to damage, the operating personnel can directly dismantle this cleaning piece 32 from installed part 31 and maintain, change, and need not to wholly change installed part 31, and is more simple and convenient to the maintenance of cleaning piece 32 to can reduce the maintenance cost to cleaning piece 32.

In order to further improve the cleaning effect of the cleaning element 32 on the drum 11, the width of the cleaning element 32 should be larger than the width of the drum 11 along its own radial direction, so that when the cleaning element 32 cleans the drum 11, the drum 11 can be completely covered, and the situation that the cleaning element 32 fails to clean the impurities on the drum 11 is avoided.

In one embodiment provided by the present disclosure, the cleaning element 32 may optionally have a first fastening hole thereon, and the mounting element 31 may have a second fastening hole thereon, and the first fastening hole and the second fastening hole are used for fastening elements to pass through. When the cleaning piece 32 needs to be replaced or maintained, the fastening pieces are taken out from the first fastening holes and the second fastening holes.

It should be noted that, in order to avoid interference between the fastening bolt and the sensor body 20 when the mounting member 31 and the cleaning member 32 are fastened, in an embodiment provided by the present disclosure, the second fastening hole formed in the mounting member 31 may be a blind hole, and the second fastening hole is simultaneously a threaded hole, and the fastening member is a bolt, so that the fastening member does not press or interfere with the sensor body 20 located inside the mounting member 31 when the cleaning member 32 is fastened.

Of course, the cleaning element 32 may be connected to the mounting element 31 by other detachable connection methods, for example, in another embodiment provided by the present disclosure, a latch may be formed on one of the mounting element 31 and the cleaning element 32, and a slot adapted to the latch may be formed on the other of the mounting element 31 and the cleaning element 32, and the latch is engaged with the slot of the cleaning element 32. In short, the present disclosure is not limited to the manner in which the cleaning element 32 can be detached from the mounting element 31, and the cleaning element 32 and the mounting element 31 can be connected by any structure or manner that satisfies the connection requirement.

Alternatively, in one embodiment provided by the present disclosure, the sweeper 32 may be made of rubber; that is, the cleaning member 32 may be a rubber strip, which has advantages of high strength and wear resistance, and is soft, so that the loss and damage of the cleaning member 32 can be reduced in the process of cleaning the impurities adsorbed on the drum 11, thereby reducing the cleaning cost.

In the second embodiment provided by the present disclosure, the cleaning element 32 may also be made of plastic, graphite, or the like, or in another embodiment provided by the present disclosure, the cleaning element 32 may be a cleaning brush, and the present disclosure does not limit the specific material and type of the cleaning element 32 as long as the cleaning of the impurities adsorbed on the magnetic drum 11 can be achieved.

As shown in fig. 2 to 3, according to a second aspect of the present disclosure, there is provided a wheel speed sensor assembly including a wheel speed sensor 1 and a sweeping device 30 for the wheel speed sensor as above, the wheel speed sensor assembly including a sensor body 20 and a magnetic encoder 10, the magnetic encoder 10 being configured to be mounted on a hub bearing 40 and to be rotatable with the hub bearing 40, a detecting portion of the sensor body 20 being disposed opposite to a magnetic drum 11 of the magnetic encoder 10, and a mounting member 31 of the sweeping device 30 being mounted on the sensor body 20. The cleaning member 32 can sweep away impurities adsorbed on the drum 11, so that the impurities adsorbed on the drum 11 can be prevented from interfering with the sensitivity of the sensor body 20 during the rotation of the magnetic encoder 10, and the measurement accuracy of the wheel speed sensor 1 can be improved.

Alternatively, in order to facilitate maintenance and replacement of the cleaning structure, in the present disclosure, the mounting member 31 is detachably connected to the sensor body 20. When the installed part 31 is damaged or loosens with the cooperation between the sensor body 20, the whole structure of the wheel speed sensor assembly is not required to be disassembled, and the installed part 31 is only required to be disassembled from the sensor body 20 to be repaired or replaced, so that the maintenance difficulty and the maintenance cost of the wheel speed sensor assembly are reduced.

Optionally, in one embodiment provided by the present disclosure, the mounting member 31 is snap-fitted to the sensor body 20. On the one hand, the mounting part 31 does not need to be fixed to the mounting part 31 through auxiliary parts such as bolts and nuts when the mounting part 31 is clamped with the sensor body 20, the structure of the cleaning device 30 can be simplified, the weight of the wheel speed sensor assembly is reduced, on the other hand, the structure of the sensor body 20 does not need to be modified (for example, holes are formed in the sensor body 20, grooves are formed in the sensor body 20, and the mounting device has the advantages of being simple to mount and convenient to dismount) in order to adapt to the mounting of the mounting part 31.

In another embodiment provided by the present disclosure, the mounting member 31 may be in threaded connection with the sensor body 20, specifically, a first threaded hole is formed on the mounting member 31, a second threaded hole is formed on the sensor body 20, and a bolt passes through the first threaded hole and the second threaded hole, respectively, so as to fasten the mounting member 31 and the sensor body 20; in short, the connection manner between the mounting member 31 and the sensor body 20 is not limited in the present disclosure, and the mounting member 31 and the sensor body 20 can be connected in any manner that meets the requirement, which is not described in detail herein.

Of course, the mounting member 31 and the sensor body 20 may be connected by non-detachable means such as welding or bonding, and the mounting member 31 and the sensor body 20 may be connected by a bonding connection means such as welding, which has higher connection strength and can further improve the stability between the mounting member 31 and the sensor body 20.

As shown in fig. 2 to 3, according to a third aspect of the present disclosure, there is provided a vehicle including a hub bearing 40 and a wheel speed sensor assembly as above, a magnetic encoder 10 of the wheel speed sensor assembly being mounted on the hub bearing 40. The vehicle has all the advantages of the wheel speed sensor assembly, and the details of the disclosure are omitted.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (11)

1. The utility model provides a cleaning device for wheel speed sensor, wheel speed sensor includes magnetic encoder and sensor body, its characterized in that, cleaning device includes installed part and cleaning piece, the installed part is used for installing on the sensor body, cleaning piece is connected on the installed part and set up to the orientation magnetic encoder's drum extension, cleaning piece is used for when magnetic encoder rotates to impurity on the drum cleans.

2. The cleaning device for a wheel speed sensor as claimed in claim 1, wherein the cleaning member is provided to protrude from the mounting member toward a direction close to the drum, and one end of the cleaning member is in contact with the drum.

3. The cleaning device for a wheel speed sensor as claimed in claim 1, wherein the mounting member includes a first side plate and two second side plates respectively located at both ends of the first side plate, the first side plate and the two second side plates together form a U-shape, the mounting member is adapted to be engaged with the sensor body, the first side plate is located on a side of the sensor body away from the drum, and the cleaning member is connected to a side of the second side plate away from the sensor body.

4. The sweeping device for a wheel speed sensor of claim 3, wherein there are two sweeping pieces, and the two sweeping pieces are connected to the two second side plates, respectively.

5. The sweeping device for a wheel speed sensor of any one of claims 1 to 4, wherein the sweeping member is detachably attached to the mounting member.

6. The cleaning device for a wheel speed sensor as claimed in claim 5, wherein the cleaning member has a first fastening hole therein, and the mounting member has a second fastening hole therein, the first and second fastening holes each being for a fastening member to pass through.

7. The sweeping device for a wheel speed sensor according to any one of claims 1 to 4, wherein the sweeping member is made of rubber; or the cleaning piece is a cleaning brush.

8. A wheel speed sensor assembly comprising a wheel speed sensor and a cleaning device for a wheel speed sensor according to any one of claims 1 to 7, the wheel speed sensor assembly comprising a sensor body and a magnetic encoder for mounting on and rotatable with a hub bearing, a detection portion of the sensor body being disposed opposite to a drum of the magnetic encoder, and a mounting member of the cleaning device being mounted on the sensor body.

9. The wheel speed sensor assembly of claim 8, wherein the mounting member is removably coupled to the sensor body.

10. The wheel speed sensor assembly of claim 9, wherein the mounting member is snap-fit to the sensor body.

11. A vehicle comprising a wheel hub bearing and a wheel speed sensor assembly of any of claims 8-10, the magnetic encoder of the wheel speed sensor assembly being mounted on the wheel hub bearing.

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