CN216117661U - Wheel speed sensor and mounting structure - Google Patents
Wheel speed sensor and mounting structure Download PDFInfo
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- CN216117661U CN216117661U CN202122588002.5U CN202122588002U CN216117661U CN 216117661 U CN216117661 U CN 216117661U CN 202122588002 U CN202122588002 U CN 202122588002U CN 216117661 U CN216117661 U CN 216117661U
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Abstract
The utility model belongs to the technical field of wheel speed detection, and discloses a wheel speed sensor and a mounting structure. The wheel speed sensor includes: a body; the framework is arranged in the body; the chip is arranged in the body and connected to the framework; the contact pin is arranged in the body and connected to one end of the framework, which is far away from the chip; the protective cover is sleeved outside one end of the body close to the chip; and the sealing ring is sleeved outside the body and is positioned between the body and the protective cover. This wheel speed sensor is through locating the body with the safety cover and being close to the outside of chip one end, and the safety cover has played the guard action, has improved the reliability of the fast sensor of wheel under high temperature, the sand stone road conditions of sand, and guaranteed waterproof, dirt-proof performance requirement, prolonged the life of the fast sensor of wheel. Through locating the outside of body with the sealing washer cover and being located between body and the safety cover, the sealing washer sets up in the inside of body, realizes sealed between body and the safety cover, and is sealed effectual, avoids impurity corrosions such as dust and steam.
Description
Technical Field
The utility model relates to the technical field of wheel speed detection, in particular to a wheel speed sensor and a mounting structure.
Background
The conventional commercial vehicle utilizes a wheel speed sensor to detect the wheel speed so as to achieve the purpose of detecting various parameter performances. The prior wheel speed sensor has the following defects:
firstly, the wheel speed sensor is generally a pure line structure, and the fixed position and the length of a sensor wire harness need to be fully considered, so that the risk of interference between the wheel speed sensor and peripheral parts in the movement stroke of the wheel is avoided. In the arrangement process, corresponding fixed points must be reserved on peripheral parts, so that a plurality of brackets need to be additionally arranged independently to provide necessary support for a wire harness of the wheel speed sensor, the structure is complex, parts are multiple, and the production cost is high. Because the types, the movement strokes and the arrangement spaces of the front wheels of different finished vehicles are different, the wheel speed sensor with a pure line type structure cannot meet the design requirements at the same time, and the universality is poor.
Secondly, the wheel speed sensor is generally passive and based on the electromagnetic induction principle, the sensitivity is low, when the vehicle speed is lower than 5km/h, the induction voltage is very low, stable and accurate wheel speed signals cannot be provided, and the rotation direction of wheels cannot be identified, so as to meet the requirement of increasing wheel speed signals of commercial vehicles.
Thirdly, because the wheel limit system of commercial car generally is in the operational environment such as braking high temperature, the sand and stone of abundance splash, the head of wheel speed sensor lacks effective protection structure, has the problem that the head of wheel speed sensor is ablated by high temperature, stone to damage to lead to the condition that the wheel speed sensor became invalid easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wheel speed sensor and a mounting structure thereof, which are used for protecting the wheel speed sensor, and have good reliability and strong universality.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a wheel speed sensor comprising:
a body;
a skeleton disposed within the body;
the chip is arranged in the body and connected to the framework;
the contact pin is arranged in the body and connected to one end, far away from the chip, of the framework;
the protective cover is sleeved outside one end of the body close to the chip;
and the sealing ring is sleeved outside the body and is positioned between the body and the protective cover.
Preferably, the body comprises:
the chip protection device comprises a first body, a second body and a protection cover, wherein a framework and a chip are arranged in the first body, and the protection cover is sleeved outside the first body;
the second body is positioned above the first body and connected with the first body, and the contact pins are respectively arranged on the first body and the second body in a penetrating way.
Preferably, the first body is an integrally formed structure.
Preferably, the protective cover is made of stainless steel.
Preferably, a fixing groove is formed in the frame, and the chip is arranged in the fixing groove.
Preferably, the contact pin and the framework are connected through a plug connector.
To achieve the above object, the present invention also provides a mounting structure, comprising: knuckle, wheel hub bearing and foretell wheel speed sensor, the ring gear of wheel hub bearing connects in the wheel, wheel speed sensor install in on the knuckle for detect the rotational speed of ring gear.
Preferably, a fixing hole is formed in the wheel speed sensor, a mounting hole is formed in the knuckle corresponding to the fixing hole, and a connecting member is respectively inserted into the fixing hole and the mounting hole.
Preferably, a bushing is disposed in the fixing hole, and the connecting member is inserted into the bushing.
Preferably, a plurality of tooth structures are provided on a side surface of the ring gear in a circumferential direction thereof, and the wheel speed sensor is capable of recognizing the tooth structures.
The utility model has the beneficial effects that:
according to the wheel speed sensor provided by the utility model, the skeleton, the chip and the contact pin are respectively arranged in the body, and the body plays a role in integral support. The skeleton is connected in the chip, and the skeleton is used for bearing the chip, realizes the fixed to the chip, and the one end that the body is close to the chip is the sense terminal for fast detection of wheel. Set up in this internal and connect in the skeleton one end of keeping away from the chip through the contact pin, this wheel speed sensor adopts and cut straightly the formula structure, need not additionally to set up bearing structure for the pencil, simple structure, part is small in quantity, and manufacturing cost is lower, and can be adapted to different installation environment, arranges the convenience, and the commonality is strong. Simultaneously, adopt and cut straightly the formula structure, can provide stable, accurate wheel speed signal to satisfy commercial car to the senior functional requirement of wheel speed signal.
Through locating the outside that the body is close to chip one end with the safety cover, the safety cover has played the guard action, has improved the reliability of fast sensor of wheel under high temperature, the sand stone road conditions of sand, and guaranteed waterproof, dirt-proof performance requirement, prolonged the life of fast sensor of wheel. Through locating the outside of body with the sealing washer cover and being located between body and the safety cover, the sealing washer sets up in the inside of body, realizes sealed between body and the safety cover, and is sealed effectual, avoids impurity corrosions such as dust and steam.
According to the mounting structure provided by the utility model, the wheel speed sensor is mounted on the steering knuckle, and the steering knuckle provides a mounting position for the wheel speed sensor so as to ensure the position stability of the wheel speed sensor. The gear ring through setting up the wheel hub bearing is connected in the wheel for the gear ring can rotate along with the rotation of wheel, utilizes the rotational speed that detects the gear ring, in order to reach the fast purpose of detection wheel.
Drawings
FIG. 1 is a schematic structural view of the mounting structure of the present invention;
FIG. 2 is a schematic view of the mounting structure of the present invention showing a tooth structure;
FIG. 3 is a schematic structural view of a wheel speed sensor of the present invention;
fig. 4 is a sectional view of a wheel speed sensor of the present invention.
In the figure:
1. a body; 2. a framework; 3. a chip; 4. inserting a pin; 5. a protective cover; 6. a seal ring; 7. a connecting member;
11. a first body; 12. a second body; 121. a fixing hole; 122. a bushing;
100. a knuckle; 200. a hub bearing; 201. a tooth-shaped structure.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
The present embodiment provides a mounting structure, as shown in fig. 1, the mounting structure includes a knuckle 100, a hub bearing 200, and a wheel speed sensor, a ring gear of the hub bearing 200 is specifically an ABS ring gear, and the ring gear is connected to a wheel so that the ring gear can rotate along with the rotation of the wheel. A wheel speed sensor is mounted on the knuckle 100 for detecting the rotational speed of the ring gear.
The mounting structure that this embodiment provided, install on knuckle 100 through the wheel speed sensor, knuckle 100 provides the mounted position for the wheel speed sensor to guarantee the positional stability of wheel speed sensor. The ring gear through setting up hub bearing 200 is connected in the wheel for the ring gear can rotate along with the rotation of wheel, and the rotational speed of utilization detection ring gear is in order to reach the fast purpose of detection wheel.
In order to mount the wheel speed sensor, a fixing hole 121 (as shown in fig. 4) is formed in the wheel speed sensor, a mounting hole is formed in the knuckle 100 corresponding to the fixing hole 121, and the connecting member 7 is inserted through the fixing hole 121 and the mounting hole, respectively. Preferably, one of the fixing hole 121 and the mounting hole is a through hole, the other is a threaded hole, the connecting piece 7 is specifically an M6 bolt, the M6 bolt is respectively inserted into the fixing hole 121 and the mounting hole, then the M6 bolt is tightened, the tightening torque is 8N · M to 10N · M, so as to fix the wheel speed sensor on the knuckle 100, and the fixing effect is good. The wheel speed sensor is connected with the steering knuckle 100 through the bolt, so that the structure is simple, the use is convenient, the installation and the disassembly are convenient, and the maintenance cost is low.
Preferably, be provided with bush 122 (as shown in fig. 4) in fixed orifices 121, the axis of bush 122 and the axis collineation of mounting hole, wear to locate the mounting hole behind the bush 122 for connecting piece 7, bush 122 can keep apart connecting piece 7 and the inner wall of fixed orifices 121, and bush 122 has played the effect of protection fixed orifices 121, avoids appearing connecting piece 7 and leads to the condition that fixed orifices 121 opened easily when installing and dismantling many times.
Further, in order to ensure the accuracy of detection of the wheel speed sensor, as shown in fig. 2, a plurality of tooth structures 201 are provided on the side surface of the ring gear along the circumferential direction thereof, and the wheel speed sensor can recognize the tooth structures 201. Because the ring gear can rotate along with the rotation of the wheel, a plurality of tooth-shaped structures 201 are distributed on the ring gear in a circumferential mode, the wheel speed sensor can periodically sense pulse current signals related to the rotation frequency, namely the wheel speed sensor generates high-level signals when detecting the tooth-shaped structures 201, the wheel speed sensor sends out low-level signals when detecting two adjacent tooth-shaped structures 201, the pulse current signals are transmitted to a wire harness and finally transmitted to the electronic vehicle body stabilizing system, and the electronic vehicle body stabilizing system analyzes the wheel speed and the rotation direction of the wheel through an AK protocol.
The problem that the wire harness is supported and fixed needs to be considered in the conventional wheel speed sensor, so that the universality is poor, the wheel speed sensor is based on an electromagnetic induction principle, the sensitivity is low, and the detection precision is low. In order to solve the problem, as shown in fig. 3-4, this embodiment provides a wheel speed sensor, including body 1, skeleton 2, chip 3 and contact pin 4, skeleton 2 sets up in body 1, chip 3 sets up in body 1 and is connected in skeleton 2, the one end that body 1 is close to chip 3 is the detection end, the one end that body 1 kept away from chip 3 is the stiff end, contact pin 4 sets up in body 1 and is connected in the one end that skeleton 2 kept away from chip 3, the one end of contact pin 4 is connected in chip 3, the other end electricity is connected in the automobile body to the plug-in components (not shown in the figure).
The wheel speed sensor that this embodiment provided is provided with skeleton 2, chip 3 and contact pin 4 respectively in body 1 is inside, and body 1 has played the effect of whole support. Skeleton 2 is connected in chip 3, and skeleton 2 is used for bearing chip 3, realizes the fixed to chip 3, and the one end that body 1 is close to chip 3 is the sense terminal for fast detection of wheel. Set up in body 1 through contact pin 4 and be connected in skeleton 2 and keep away from the one end of chip 3, this wheel speed sensor adopts and cut straightly formula structure, need not additionally to set up bearing structure for the pencil, simple structure, and part quantity is little, and manufacturing cost is lower, and can be adapted to different installation environment, arranges the convenience, and the commonality is strong. Simultaneously, adopt and cut straightly the formula structure, can provide stable, accurate wheel speed signal to satisfy commercial car to the senior functional requirement of wheel speed signal.
The existing commercial vehicle can work under working conditions of high temperature, sand and stone and the like, and the problem that the head of the wheel speed sensor is ablated by high temperature and damaged by stone impact exists. In order to solve the problem, as shown in fig. 3-4, the wheel speed sensor further comprises a protection cover 5, the protection cover 5 is sleeved outside one end of the body 1 close to the chip 3, and the protection cover 5 plays a role in protection, so that the reliability of the wheel speed sensor under high-temperature and sandy-stone road conditions is improved, the waterproof and dustproof performance requirements are ensured, and the service life of the wheel speed sensor is prolonged. Preferably, the protective cover 5 is made of stainless steel material to ensure better structural strength.
Because the open environment of the O shape sealing washer of the current fast sensor head surface setting of wheel mainly used front steering wheel, waterproof dustproof and not having the actual effect to the sensor, for this, this fast sensor of wheel still includes sealing washer 6, the outside of body 1 is located and is located between body 1 and safety cover 5 to 6 covers of sealing washer, sealing washer 6 sets up in the inside of body 1, realize the sealed between body 1 and the safety cover 5, it is sealed effectual, avoid impurity corrosions such as dust and steam.
Further, the body 1 includes a first body 11 and a second body 12, the framework 2 and the chip 3 are arranged in the first body 11, the protective cover 5 is sleeved outside the first body 11, and the bottom of the first body 11 is the induction end. The second body 12 is located above and connected to the first body 11, and a fixing hole 121 is formed on the second body 12 for fixing the wheel speed sensor, so that the second body 12 may also be referred to as a fixing disc. The pins 4 are respectively arranged through the first body 11 and the second body 12. First body 11 and second body 12 are split type structure, and this kind of formula intelligence wheel speed sensor cut straightly, simple structure is favorable to the platform design, is applied to the abominable road conditions of traveling of commercial car simultaneously, has high reliability, and the practicality is stronger.
Preferably, the first body 11 is an integrally formed structure. Compare in current riveting mode, first body 11 is preferred to adopt integrative injection moulding, has avoided the condition of 3 stress concentration of the inside chip of fast sensor of wheel, has guaranteed waterproof dirt-proof performance requirement simultaneously.
Further, a fixing groove is provided in the frame 2, and the chip 3 is provided in the fixing groove. Through setting up the fixed slot, provide the mounted position for chip 3 to guarantee chip 3's fixed effect.
In order to ensure the stability of the insertion of the contact pin 4, the contact pin 4 is connected with the framework 2 through a connector which plays a role in intermediate connection. Preferably, an error-proof rib is arranged on the outer side of the plug connector and used for limiting the specific position of the plug connector and avoiding the situation that the mounting direction of the plug connector is wrong.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings and are used for convenience in description and simplicity in operation, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A wheel speed sensor, comprising:
a body (1);
the framework (2) is arranged in the body (1);
a chip (3) arranged in the body (1) and connected to the skeleton (2);
the contact pin (4) is arranged in the body (1) and connected to one end, far away from the chip (3), of the framework (2);
the protective cover (5) is sleeved outside one end, close to the chip (3), of the body (1);
and the sealing ring (6) is sleeved outside the body (1) and is positioned between the body (1) and the protective cover (5).
2. The wheel speed sensor according to claim 1, wherein the body (1) includes:
the chip packaging structure comprises a first body (11), wherein the framework (2) and the chip (3) are arranged in the first body (11), and a protective cover (5) is sleeved outside the first body (11);
the second body (12) is positioned above the first body (11) and connected with the first body, and the pins (4) are respectively arranged on the first body (11) and the second body (12) in a penetrating way.
3. The wheel speed sensor according to claim 2, wherein the first body (11) is of an integrally molded structure.
4. The wheel speed sensor according to claim 1, wherein the protective cover (5) is made of a stainless steel material.
5. The wheel speed sensor according to claim 1, characterized in that a fixing groove is provided in the skeleton (2), the chip (3) being provided in the fixing groove.
6. The wheel speed sensor according to claim 1, wherein the contact pin (4) and the frame (2) are connected by a plug.
7. A mounting structure, characterized by comprising: a knuckle (100), a hub bearing (200) and a wheel speed sensor according to any one of claims 1-6, a ring gear of the hub bearing (200) being connected to a wheel, the wheel speed sensor being mounted on the knuckle (100) for detecting a rotational speed of the ring gear.
8. The mounting structure according to claim 7, wherein a fixing hole (121) is provided on the wheel speed sensor, a mounting hole is provided on the knuckle (100) corresponding to the fixing hole (121), and a connecting member (7) is respectively inserted through the fixing hole (121) and the mounting hole.
9. The arrangement, as set forth in claim 8, characterized in that a bushing (122) is provided in the fixing hole (121), the connecting piece (7) being pierced in the bushing (122).
10. The mounting structure according to claim 7, wherein a plurality of tooth structures (201) are provided on a side surface of the ring gear in each circumferential direction thereof, the wheel speed sensor being capable of recognizing the tooth structures (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122588002.5U CN216117661U (en) | 2021-10-25 | 2021-10-25 | Wheel speed sensor and mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122588002.5U CN216117661U (en) | 2021-10-25 | 2021-10-25 | Wheel speed sensor and mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216117661U true CN216117661U (en) | 2022-03-22 |
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ID=80709874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122588002.5U Active CN216117661U (en) | 2021-10-25 | 2021-10-25 | Wheel speed sensor and mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216117661U (en) |
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2021
- 2021-10-25 CN CN202122588002.5U patent/CN216117661U/en active Active
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