WO2016008091A1

WO2016008091A1 - Tyre pressure sensor assembly and wheel comprising same

Info

Publication number: WO2016008091A1
Application number: PCT/CN2014/082217
Authority: WO
Inventors: 李红京; 魏立顺
Original assignee: 深圳市道通科技股份有限公司
Priority date: 2014-07-15
Filing date: 2014-07-15
Publication date: 2016-01-21
Also published as: CN106660415A; CN106660415B

Abstract

Disclosed are a tyre pressure sensor assembly (100) and a wheel comprising such a tyre pressure sensor assembly (100). The tyre pressure sensor assembly (100) has a split structure, and comprises a tyre valve (3), a tyre pressure sensor (1) and a fastener (2), wherein a protruding end (31) of the tyre valve (3) and a recessed part (11) of the tyre pressure sensor (1) are complementarily matched together in shape, and the curvature radius of a first curved bottom surface (317) is less than that of a second curved side surface (319) of the protruding end (31), so that the tyre pressure sensor assembly (100) can adjust an angle, for example, between 0° and 30° within a longitudinal plane, to be able to adapt to various different types of wheel hubs, but cannot adjust the angle within a horizontal plane, so that the assembling is simple, and the requirements of stability and reliability are satisfied.

Description

Tire pressure sensor assembly and wheel including the same

The present invention relates to a tire pressure sensor assembly, and a wheel including the tire pressure sensor assembly. Background technique

It is known that the magnitude of the tire pressure directly affects the driving safety of a motor vehicle (e.g., a car or a motorcycle), and therefore the tire pressure sensor assembly is generally installed in the tire of the motor vehicle. The tire pressure sensor assembly mainly includes a tire pressure sensor and a valve, and the mounting manner thereof is generally classified into a built-in installation or an external installation. When the vehicle is running, the tire pressure sensor assembly automatically monitors the tire pressure in real time, and sends monitoring data (generally including temperature and tire pressure) to the receiver inside the vehicle. The driver can observe the display platform data or receiver. The alarm sound is issued to judge the safety condition of the running vehicle tires.

Figure 1 shows a built-in tire pressure sensor assembly of the prior art. In the tire pressure sensor assembly, 100", the tire pressure sensor 1" and the valve 3" are integrally formed by pre-fusion of the mold, and the integral piece is fixed to the wheel hub 20" through the valve nut 5", a fixed angle α (this angle is created to accommodate the curved surface of the wheel hub, which enables a tight fit between the valve and the hub after installation, typically 20 or 40 degrees), where the tire pressure sensor assembly passes The intake port 11" communicates with the internal pressure of the tire 21", thereby realizing real-time monitoring of the tire pressure.

However, such a tire pressure sensor assembly has the following problems:

1. Since the tire pressure sensor and the valve are integrated, that is, they have been fused together by the mold before being mounted to the tire, once the exposed valve is damaged during use, the entire integrated part needs to be completely replaced, which leads to an increase in cost. ; as well as

2. Since the tire pressure sensor and the valve have been fused together by the mold before being mounted to the tire, they have a fixed angle; as shown in Fig. 1, the tire pressure sensor and the valve are fixed at a fixed angle α. Therefore, for fixed wheel hubs, this fixed angle tire pressure sensor is not adaptable and cannot be compatible with many types of wheels.

Therefore, a new type of tire pressure sensor assembly is needed to solve the above problems. Summary of the invention The present invention provides a tire pressure sensor assembly having a split configuration, and the projecting end of the valve is complementarily mated with the shape of the recess of the tire pressure sensor such that the tire pressure sensor assembly is in a longitudinal plane (see below for details). The angle can be adjusted, for example, between 0-30 degrees to be able to accommodate a variety of different types of hubs, but at the same time the angle cannot be adjusted in the transverse plane (as defined below) to make the assembly simple and stable. And reliability requirements.

Specifically, the present invention provides a tire pressure sensor assembly having a split structure including:

a valve having a protruding end, the protruding end comprising:

a first curved bottom surface with an opening; and

a second curved side surface disposed on opposite sides of the first curved bottom surface and continuously adjacent to the first curved bottom surface;

a tire pressure sensor having a recessed portion, the recessed portion being complementarily complementary to the shape of the protruding end, the recessed portion comprising:

a first bottom concave surface having an opening, engaging the first curved bottom surface; a second side concave surface disposed on opposite sides of the first bottom concave surface to be engaged with the second curved side surface;

a fastener passing through the opening and the opening to fasten the valve and the tire pressure sensor together;

Wherein the radius of curvature of the first curved bottom surface is smaller than the radius of curvature of the second curved side surface.

In a preferred embodiment of the tire pressure sensor assembly according to the present invention, the protruding end further includes a step surface continuously adjacent to the second curved side surface and an outer side surface continuously adjacent to the step surface; the concave portion Also included is a boss projecting from the second side concave surface, the boss being engaged with the step surface. Further preferably, the radius of curvature of the stepped surface is substantially equal to the radius of curvature of the first curved bottom surface. Still more preferably, the bottom edge of the outer side forms a continuous, generally circular outer periphery with the bottom edge of the first curved bottom surface.

In a preferred embodiment of the tire pressure sensor assembly according to the invention, the valve is angularly adjustable in a longitudinal plane between the second curved sides that is longitudinal to the first curved bottom surface. Further preferably, the adjustable angle of the valve in the longitudinal plane ranges between 0-30 degrees. In a preferred embodiment of the tire pressure sensor assembly according to the present invention, the valve is not adjustable in a transverse plane transverse to the first curved bottom surface and the second curved side, the longitudinal direction The plane is perpendicular to the transverse plane.

In a preferred embodiment of the tire pressure sensor assembly according to the present invention, the fastener is a fastening bolt. Further preferably, the fastening bolt has an end designed as an inner hexagonal plum.

In a preferred embodiment of the tire pressure sensor assembly according to the present invention, the valve has a plurality of through holes provided inside the protruding end.

In a preferred embodiment of the tire pressure sensor assembly according to the present invention, the valve mouth further includes a tightening bolt disposed at an end opposite the protruding end.

The present invention also provides a wheel comprising the tire pressure sensor assembly described above.

In a preferred embodiment of the wheel according to the invention, a substantially circular sealing ring is also provided, which is arranged to be attached to the outer periphery formed in the tire pressure sensor assembly for the valve and the wheel hub seal. DRAWINGS

The invention can be better understood by reference to the following drawings, in conjunction with the following non-limiting exemplary embodiments. It is understood that the drawings are not to be considered as limiting, In the drawing:

1 is a schematic view of an integrated tire pressure sensor assembly of the prior art; FIG. 2 is a perspective exploded view of a tire pressure sensor assembly having a split structure in accordance with a preferred embodiment of the present invention;

Figure 3 is a schematic cross-sectional view of the tire pressure sensor assembly of Figure 2 in a longitudinal plane (i.e., P1-YZ plane) after assembly;

Figure 4 is a schematic cross-sectional view of the tire pressure sensor assembly of Figure 2 in a transverse plane (i.e., P2-XY plane) after assembly;

Figure 5 is another perspective view of the valve of the tire pressure sensor assembly of Figure 2; Figure 6 is a preferred embodiment of the fastener in the tire pressure sensor assembly of the present invention; Figure 7 is a tire pressure sensor of the present invention a partial cross-sectional view of the valve in the assembly;

Figure 8 is a schematic illustration of the tire pressure sensor assembly of Figure 2 assembled to a wheel. detailed description

It is to be understood that the following embodiments are merely illustrative and are not limiting of the invention. The scope of protection of the invention is defined by the claims. It should also be understood that in practicing the present invention, it is not necessary to include all of the technical features in the embodiments described below, which may be in various combinations.

In this context, referring to Figure 2, for the sake of clarity of description, mutually defined X, Y and Z axes are defined, wherein the X axis is parallel to the body of the tire pressure sensor in the lateral direction and the Y axis is parallel to the valve in the longitudinal direction. The main body, the Z axis is perpendicular to the plane defined by the X and Y axes; in addition, the plane formed by the Y and Z axes is referred to as a longitudinal plane (ie, between the second curved sides of the valve, longitudinally to the first curved bottom surface) The plane formed by the planes P1-YZ), X, and Υ is called the transverse plane (ie, transverse to the plane Ρ2-ΧΥ passing through the first curved bottom surface and the second curved side of the valve), wherein the longitudinal plane It is perpendicular to the lateral plane.

Moreover, those skilled in the art will appreciate that, for the sake of brevity, not all of the components in the tire pressure sensor assembly are not necessarily described herein.

Referring next to Figures 2-5, a tire pressure sensor assembly 100 in accordance with a preferred embodiment of the present invention is illustrated. The tire pressure sensor assembly 100 has a split structure including:

A valve 3 has a protruding end 31, and the protruding end 31 comprises:

a first curved bottom surface 317 with an opening 4; and

Second curved sides 319 disposed on opposite sides of the first curved bottom surface 317 and continuously adjacent to the first curved bottom surface 317;

A tire pressure sensor 1 has a recessed portion 11 which is complementaryly fitted to the projecting end 31, the recessed portion 11 comprising:

a first bottom concave surface 117 having an opening 5 for engaging the first curved bottom surface 317;

a second side concave surface 119 disposed on opposite sides of the first bottom concave surface 117 to be engaged with the second curved side surface 319;

a fastener 2 passing through the opening 4 and the opening 5 to fasten the valve 3 and the tire pressure sensor 1 together;

The radius of curvature of the first curved bottom surface 317 is smaller than the radius of curvature of the second curved side surface 319.

In addition, referring to FIGS. 2 and 5, the protruding end 31 of the tire pressure sensor assembly 100 preferably further includes a stepped surface 316 continuously adjacent to the second curved side 319 and connected to the stepped surface 316. The adjoining outer side surface 318; the recessed portion 11 preferably further includes a boss 116 projecting from the second side concave surface 119, the boss 116 engaging the stepped surface 316. Further preferably, the radius of curvature of the stepped surface 316 is substantially equal to the radius of curvature of the first curved bottom surface 317, such that the bottom edge of the outer side surface 318 that continuously abuts the stepped surface 316 and the bottom of the first curved bottom surface 317 The edge can preferably form a continuous, generally circular outer periphery 6. Such an arrangement enables the introduction of a universal sealing ring (e.g., a rubber sealing ring, standard circular) attached to the formed outer periphery in the actual assembly with the wheel hub, thereby providing more reliable assembly and improved durability. Stability. Further, for ease of assembly, the first curved bottom surface of the valve protruding end and the side of the step surface are generally chamfered.

In the tire pressure sensor assembly of the present invention, the valve and the tire pressure sensor are disposed to be complementarily matched in shape, and since the radius of curvature of the first curved bottom surface of the valve protruding end is smaller than the radius of curvature of the second curved side Here, it is preferably a radius of curvature that is much smaller than the second curved side surface, so that the valve can be adjusted in an angle of, for example, 0-30 degrees in the longitudinal plane, thereby being suitable for assembly requirements of a plurality of different types of hub surfaces, and the valve mouth The non-adjustable angle definition in the transverse plane makes assembly simple and meets the requirements for stability and reliability.

Specifically, referring to FIG. 3, a schematic cross-sectional view showing the tire pressure sensor assembly 100 in a longitudinal plane (ie, a plane P1-YZ, a plane between the second curved sides and longitudinally cut along the first curved bottom surface) is assembled. In the longitudinal plane, the adjustable angle P of the valve is preferably 0-30 degrees; in the mating engagement of the projecting end of the valve with the recess of the tire pressure sensor, it can be seen that the first curved bottom surface of the valve 3 317 is engaged with the first bottom concave surface 117 of the tire pressure sensor 1.

Referring to FIG. 4, a cross-sectional view of the tire pressure sensor assembly 100 in a transverse plane (ie, a P2-XY plane, transverse to a plane passing through the first curved bottom surface and the second curved side) is illustrated, In the transverse plane, the angle of the valve is not adjustable; in the mating engagement of the protruding end of the valve with the recess of the tire pressure sensor, it can be seen that the first curved bottom surface 317 of the valve 3 and the tire pressure sensor 1 The first bottom concave surface 117 is joined, the second curved side surface 319 is engaged with the second side concave surface 119, the step surface 316 is engaged with the boss 116, and the outer side surface 318 is also joined to the second side concave surface of the recess.

Referring to Fig. 6, the fastener 2 of the tire pressure sensor assembly 100 of the present invention is preferably a fastening bolt having an end 22 designed as an inner hexagonal plum to increase the choice of tool diversification.

Referring to Figures 2-5, the valve 3 of the tire pressure sensor assembly 100 of the present invention further includes a valve A tightening bolt 7 is provided at the end opposite the protruding end 31.

In addition, referring to FIG. 7 and FIG. 8, the valve 3 of the tire pressure sensor assembly 100 of the present invention further has a plurality of (for example, four shown) through holes 32 provided inside the protruding end 31 to satisfy The requirement of rapid inflation further allows gas to enter the wheel tire 21 through the through hole 32, and the tire pressure vent 15 communicates with the tire pressure sensor to realize tire pressure monitoring.

It is to be understood that the modifications, variations and modifications of the invention are intended to be included within the scope of the appended claims.

List of reference tags:

1, 1": tire pressure sensor;

2: fasteners;

3, 3": valve;

4: opening;

5: opening;

5": valve nut;

6: outer circumference;

7: tighten the screw;

8: sealed 圏;

15: tire pressure vent;

31: protruding end;

32: through hole;

316: step surface;

317: a first curved bottom surface;

318: outer side;

319: a second curved side;

11: recessed portion;

116: boss;

117: a first bottom concave surface;

119: the second side concave surface;

20, 20": wheel hub;

21, 21": tires;

22: tighten the end of the bolt;

11": vent;

100, 100": Tire pressure sensor assembly.

Claims

Claim

A tire pressure sensor assembly, characterized in that the tire pressure sensor has a split structure, comprising:

a valve having a protruding end, the protruding end comprising:

a first curved bottom surface with an opening; and

a tire pressure sensor having a recessed portion, the recessed portion being complementarily complementary to the protruding end shape, the recessed portion comprising:

a first bottom concave surface having an opening, engaging the first curved bottom surface; a second side concave surface disposed on opposite sides of the first bottom concave surface, engaging the second curved side surface;

The tire pressure sensor assembly according to claim 1, wherein the protruding end further includes a step surface continuously adjacent to the second curved side surface and an outer side surface continuously adjacent to the step surface; The recessed portion further includes a boss protruding from the second side concave surface, the boss being engaged with the stepped surface.

The tire pressure sensor assembly according to claim 2, wherein a radius of curvature of the step surface is substantially equal to a radius of curvature of the first curved bottom surface.

4. The tire pressure sensor assembly of claim 3, wherein a bottom edge of the outer side and a bottom edge of the first curved bottom surface form a continuous, generally circular outer periphery.

The tire pressure sensor assembly according to any one of claims 1 to 4, wherein the valve is longitudinally cut along the first curved bottom surface between the second curved sides The angle in the longitudinal plane is adjustable.

6. The tire pressure sensor assembly of claim 5, wherein the adjustable angle of the valve in the longitudinal plane ranges between 0-30 degrees.

The tire pressure sensor assembly according to claim 5, wherein the valve is not adjustable in a transverse plane transverse to the first curved bottom surface and the second curved side surface, The longitudinal plane is perpendicular to the transverse plane.

The tire pressure sensor assembly according to any one of claims 1 to 4, wherein the fastener is a fastening bolt.

The tire pressure sensor assembly according to claim 8, wherein the fastening bolt has an end portion designed as an inner hexagonal plum.

The tire pressure sensor assembly according to any one of claims 1 to 4, wherein the valve has a plurality of through holes provided inside the protruding end.

The tire pressure sensor assembly according to any one of claims 1 to 4, wherein the valve further comprises a tightening bolt disposed at an end opposite to the protruding end.

12. A wheel comprising a tire pressure sensor assembly according to any of claims 4-11.

13. The wheel of claim 12, further comprising a generally circular seal ring disposed to attach to an outer periphery formed in the tire pressure sensor assembly for use of the valve and wheel Wheel seal.