CN106965634B - Tire pressure sensing device and automobile - Google Patents

Abstract

The invention provides a tire pressure sensing device, which comprises a tire pressure sensing assembly and an inflating valve assembly, wherein the inflating valve assembly is pivoted with the tire pressure sensing assembly, and the tire pressure sensing assembly comprises a shell; the valve assembly is characterized in that a connecting piece and/or at least one limiting piece are fixedly arranged on the shell in sequence along one side of the force application direction when the valve assembly is installed and screwed, the connecting piece is fixedly connected with the front panel, and the limiting pieces are arranged on the side panel of the shell, at the joint of the side panel and the front panel and/or connected with the connecting piece. According to the tire pressure sensing device, the limiting piece is arranged, so that a connecting piece connected with the limiting piece can bear larger acting force, and the tire pressure sensing device is prevented from being damaged due to overlarge stress. Correspondingly, the invention further provides an automobile using the tire pressure sensing device.

Description

Tire pressure sensing device and automobile

technical field

The present invention relates to the field of auto parts, and in particular, the present invention relates to a tire pressure sensing device and an automobile using the tire pressure sensing device.

Background technique

With the improvement of people's living standards, the number of private cars, passenger cars or trucks has greatly increased. In order to ensure the safe driving of cars, car owners or car manufacturers have adopted the installation of tire pressure monitoring systems inside car tires. Real-time monitoring of parameters such as air pressure and temperature of car tires. Generally speaking, it is realized by installing a tire pressure sensor in each tire, and the tire pressure sensor includes a pressure sensing element and a battery. Regardless of whether the car is running or stationary, the tire pressure sensor can automatically detect data such as pressure and temperature in the tire where it is located in real time, and give an alarm in time when the tire pressure and temperature are abnormal, so as to avoid tire failure. And cause traffic accidents to ensure driving safety.

In the prior art, the tire pressure sensor is usually used in conjunction with the valve, that is, the tire pressure sensor and the valve are respectively provided with corresponding connecting holes, and then screws are passed through the connecting holes in sequence to connect and fix the two. On this basis, there are hidden dangers when using the tire pressure sensor with the valve, that is, the relative position of the valve and the tire needs to be adjusted during the installation process, and when the valve is rotated, it may cause the tire pressure sensor and the valve The connecting part of the nozzle is damaged due to excessive force, which makes the tire pressure sensor separate from the valve, which is not conducive to the installation of the tire pressure sensor.

Therefore, it is necessary to provide a tire pressure sensing device to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a tire pressure sensing device, the limiting member on the tire pressure sensing device can fit with the wheel hub in the tire of the automobile, so that the tire pressure sensing component of the tire pressure sensing device can be Withstands the high forces exerted on it by the valve assembly.

In order to achieve the above object, the present invention provides the following technical solutions:

The invention provides a tire pressure sensing device, which comprises a tire pressure sensing assembly and a valve assembly, the valve assembly is pivotally connected with the tire pressure sensing assembly, and the tire pressure sensing assembly includes a housing; The casing is provided with a connecting piece for pivoting with the valve assembly and at least one limiting piece that can abut against the wheel hub to limit the lateral deflection of the tire pressure sensing assembly; the connecting piece is fixed On the front panel of the casing, the limiting member is fixed on the side panel of the casing on one side along the direction of force application when the valve assembly is installed and tightened, and is arranged on the casing On the front panel of the connector and on the side of the connecting piece along the direction of force application when the valve assembly is installed and tightened or/and on the side of the force application direction when the valve assembly is installed and tightened The junction of the front and side panels.

Preferably, the bottom surface of the limiting member is an arc surface.

Preferably, a connecting piece is also provided on the front panel on the side opposite to the direction of force applied when the valve assembly is installed and tightened, and a pivot slot is formed between the two connecting pieces.

Further, each connecting piece is provided with a connecting hole, and one end of the valve assembly close to the casing is provided with a shaft hole matching the connecting hole.

Further, the limiter extends along the connecting piece to an end away from the front panel, and the distance between the end point on the limiter that is farthest from the front panel and the plane where the front panel is located Greater than or equal to the distance between the central axis of the connecting hole and the front panel.

Preferably, a limiter is also provided on the connecting piece on the front panel along the opposite side of the force application direction when the valve assembly is installed and tightened, and the limiter is arranged in the pivot slot. opposite side.

Further, a fixing ring is provided around the connecting hole on the outer side of the connecting piece away from the limiting piece.

Further, at least one of the two connectors is a metal connector.

Optionally, one end of the valve assembly close to the casing is provided with a connecting groove matching the connecting piece.

Specifically, the tire pressure sensing assembly further includes a PCB assembly disposed in the housing and a battery for supplying power to the PCB assembly, the PCB assembly including a circuit board and a sensor, and the sensor is disposed on the circuit board On the side close to the air inlet hole, a sealing gasket is arranged between the sensor and the air inlet hole, and the sealing gasket is provided with a channel communicating with the air inlet hole.

Correspondingly, the present invention also provides an automobile, which adopts the tire pressure sensing device according to any one of the above solutions, and the tire pressure sensing components in the tire pressure sensing device are arranged on each part of the automobile. Inside the tire.

Compared with the prior art, the scheme of the present invention has the following advantages:

In the tire pressure sensing device of the present invention, the limiting member can fit with the wheel hub, so as to support the tire pressure sensing assembly, and decompose the effect exerted on the connecting member when the valve assembly is tightened Therefore, the connector can be prevented from being damaged due to the large force applied to the valve assembly when it is tightened, thereby enhancing the tire pressure sensing device. stability and prolong its service life.

The bottom surface of the limiting member is designed as an arc surface, so that the limiting member can be closely fitted with the hub, so that the hub can bear the action of the valve assembly on the connecting piece connected with the limiting member force, which further prevents the connecting portion from being damaged due to excessive force.

By using bolts to pass through one connecting hole, the shaft hole and the other connecting hole in sequence, the tire pressure sensing assembly and the valve assembly can be pivotally connected, and the tire pressure sensing assembly can rotate around the valve assembly. , the angle between the tire pressure sensing assembly and the valve assembly can be adjusted, and the pivoting method is used to facilitate the assembly or disassembly of the tire pressure sensing assembly and the valve assembly, and the Maintenance and repair of tire pressure sensing devices.

The limiting member extends along the connecting member to one end away from the front panel, and the distance between the end point on the limiting member that is farthest from the front panel and the front panel is greater than or equal to the connecting hole The distance between the central axis and the front panel can ensure that when the tire pressure sensing assembly rotates around the valve assembly at a large angle, the limiting member can still fit with the wheel hub to support the The connecting piece of the limiter connection.

At least one of the two connecting pieces is a metal connecting piece, so that the tire pressure sensing assembly and the valve assembly can be connected more firmly and have better wear resistance.

By arranging a limiter on one side of each connecting piece opposite to the pivot slot, it can prevent the connecting piece in the direction of applying force from being damaged due to excessive force when the valve assembly is tightened during the installation process In the process of disassembling the tire pressure sensing assembly, when the valve assembly is loosened, the connecting piece in the direction of applying force can be prevented from being damaged due to excessive force.

The automobile of the present invention uses the tire pressure sensing device, and the tire pressure sensing assembly is arranged inside the tire of the automobile. Therefore, the automobile has all the above-mentioned advantages of the tire pressure sensing assembly, so it is not repeated here. .

Additional aspects and advantages of the present invention will be set forth in part in the following description, which will be apparent from the following description, or may be learned by practice of the present invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is an exploded schematic view of a typical embodiment of the tire pressure sensing device of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of the housing in Fig. 1;

FIG. 3 is a schematic three-dimensional structural diagram of the metal connector in FIG. 1 observed from another angle;

4 is a top view of a typical embodiment of a tire pressure sensing assembly in the tire pressure sensing device of the present invention;

FIG. 5 is a bottom view of the tire pressure sensing assembly in FIG. 4;

FIG. 6 is a front view of the tire pressure sensing assembly in FIG. 4;

FIG. 7 is a schematic three-dimensional structural diagram of the PCB assembly in FIG. 1 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention. Also, if a detailed description of known art is not necessary to illustrate the features of the present invention, it will be omitted.

FIG. 1 to FIG. 7 together show a typical embodiment of the tire pressure sensing device of the present invention.

The tire pressure sensing device 100 of the present invention includes a valve assembly 1 and a tire pressure sensing assembly 2 pivotally connected to the valve assembly 1 .

The valve assembly 1 includes a valve core 12, a valve cap 11 connected to one end of the valve core 12, and a connecting portion 13 provided at the other end of the valve core 12, and the connecting portion 13 is used to communicate with the tire pressure. The sensing assembly 2 is pivotally connected.

Referring to FIG. 1 and FIG. 6 , the tire pressure sensing assembly 2 includes a housing 21 .

Specifically, the housing 21 includes a front panel 211 and a side panel (not numbered, the same below). When the tire pressure sensing device 100 is installed in a car tire or the tire pressure sensing device 100 needs to be adjusted to correct its position, the valve assembly 1 needs to be tightened, so it is necessary to rotate or move all The valve assembly 1 is described. During this process, the valve assembly 1 will exert a force approximately parallel to the plane where the front panel 211 is located to the tire pressure sensing assembly 2. A first connecting piece 212 and at least one limiting piece 213 are arranged on the side in turn, and the limiting piece 213 can abut against the wheel hub in the automobile tire to limit the lateral deflection of the tire pressure sensing assembly 2 , wherein the first connecting piece 213 A connecting member 212 is fixed on the front panel 211, and the positioning member 213 can be arranged in various ways. One side of the first connecting piece 212 along the direction of force application when the valve assembly 1 is installed and tightened, and the first connecting piece 212 and the limiting piece 213 are integrally designed; in addition, the limiting piece 213 can also be fixed on the side panel of the casing 21 along the direction of force application when the valve assembly 1 is installed and tightened, or located along the direction of force application when the valve assembly 1 is installed and tightened. The junction of the front panel 211 on one side and the side panel. The limiting member 213 may be provided in one or more than one.

When the valve assembly 1 is tightened, in other words, during the process of rotating or moving the valve assembly 1, the first connecting member 212 will be subjected to the force exerted by the valve assembly 1, due to the limitation The stopper 213 can abut against the wheel hub, thereby restricting the lateral movement of the tire pressure sensing assembly 2, and the stopper 213 can support the first connecting piece 212 and disassemble the valve assembly 1. The force applied to the limiting member 213 prevents the first connecting member 212 from being damaged by a large force, thereby enhancing the stability of the tire pressure sensing device 100 and prolonging its service life .

It should be noted that, to tighten the valve assembly 1, either by rotating the valve cap 11 and/or the valve core 12 clockwise, or by rotating the valve cap 11 and/or the valve core 12 counterclockwise Implementation, the specific implementation is determined according to the thread configuration on the valve assembly 1 .

Preferably, considering that the automobile wheel hub is circular, the bottom surface of the limiting member 213 is designed to be an arc-shaped surface, so that the limiting member 213 can closely fit with the wheel hub.

Please refer to FIG. 4 and FIG. 5 , a second connector 221 is provided on the front panel 211 along the side opposite to the direction of force applied when the valve assembly 1 is installed and tightened. At this time, the second connector A pivot slot (not numbered, the same below) is formed between 221 and the first connecting member 212 .

Please continue to refer to FIG. 1 . Specifically, the first connecting member 212 is provided with a first connecting hole 214 , and the second connecting member 221 is correspondingly provided with a second connecting hole 222 . The connecting part 13 of the assembly 1 is provided with a shaft hole 131 that matches the first connecting hole 214 and the second connecting hole 222. During installation, the connecting part 13 is embedded in the pivot groove and passed through By using the bolts 14 to pass through the first connecting hole 214 , the shaft hole 131 and the second connecting hole 222 in sequence, the tire pressure sensor assembly 2 and the valve assembly 1 can be pivotally connected. On this basis, the tire pressure sensing assembly 2 can rotate around the valve assembly 1 with the bolt 14 as the rotation axis, so as to realize the connection between the tire pressure sensing assembly 2 and the valve assembly 1 . The angle is adjustable, and at the same time, in order to prevent the first connecting portion 212 from being worn due to being squeezed by the bolts 14 , a protection plug 27 is also provided at the first connecting hole 214 .

In another embodiment, when only the first connecting member 212 is provided without the second connecting member 221, a connecting groove (not shown, the connecting portion 13 of the valve assembly 1 is provided) The same below), and installation holes (not shown, the same below) are opened on both sides of the connecting groove on the connecting portion 13, and the first connecting piece 212 can be embedded in the connecting groove. At this time, by using bolts The valve assembly 1 and the tire pressure sensing assembly 2 can be pivotally connected by passing through the installation hole and the first connecting hole 214 on the first connecting member 212 in sequence.

Please refer to FIG. 4 , when the limiting member 213 and the first connecting member 212 are integrally designed, and the tire pressure sensing assembly 2 and the valve assembly 1 are pivotally connected, the bolt 14 needs to be removed from the The side where the limiting member 213 is located passes through the first connecting hole 214 . Therefore, in order to avoid obstruction to the bolts 14 , the limiting member 213 is provided with an escape groove 2131 . The escape groove 2131 Corresponding to the first connecting hole 214 , and its width is slightly larger than the diameter of the first connecting hole 214 .

Please refer to FIG. 3 and FIG. 4 , further, a fixing ring 223 is provided on the side of the second connecting member 221 away from the first connecting member 212 . Preferably, the inner wall of the fixing ring 223 is provided with threads, and correspondingly, the bolts 14 are also provided with threads. Therefore, after the bolts 14 pass through the first connection hole 214 , the shaft hole 131 and the second connection hole 222 in sequence, the threads on the bolts 14 are engaged with the threads in the fixing ring 223 , thereby The bolts 14 are fixed to prevent them from falling off the housing 21 .

Of course, the fixing ring 223 may not be provided, but the bolt 14 may be fastened and fixed by using a nut.

Preferably, the limiting member 213 extends along the first connecting member 212 to an end away from the front panel 211 , and the end point of the limiting member 213 that is farthest from the front panel 211 and the The distance between the front panels 211 is greater than or equal to the distance between the central axes of the first connection holes 214 and the second connection holes 22 and the front panel 211 . This design can ensure that when the tire pressure sensing assembly 2 is rotated around the valve assembly 1 by a large angle, the limiting member 213 can still fit with the wheel hub, thereby preventing the first connecting portion 212 from being blocked. Support to prevent it from being damaged by large force.

Considering that in the process of disassembling the tire pressure sensing device 100, when the valve assembly 1 is loosened, the second connecting member 221 will be subjected to the force exerted by the valve assembly 1, Therefore, in the same way as the positioning member 213 is provided, in order to prevent the second connecting member 221 from being damaged due to excessive force, preferably, the second connecting member 221 is opposite to the pivot groove. There is also a limiting member (not shown, the same below) on one side, and the limiting member and the second connecting member 221 are integrally designed. Of course, the limiting member may also be disposed on another side panel (not numbered, the same below) opposite to the side panel, or on the joint between the side panel and the front panel 211 . Similarly, the limiter can be set with one or more than one.

Preferably, at least one of the first connector 212 and the second connector 221 is a metal connector, and the use of the metal connector can make the connection between the tire pressure sensor assembly 2 and the valve assembly 1 more stable and have a relatively stable connection. Good abrasion resistance.

Please refer to FIG. 1 , FIG. 3 , FIG. 4 and FIG. 5 , preferably, the second connecting piece 221 is a metal connecting piece, and the metal connecting piece is a part of the metal connecting piece 22 , and the metal connecting piece 22 is part of the Embedded in the casing 21 .

Please continue to refer to FIG. 3 . Specifically, the metal connecting component 22 further includes a folding arm 224 formed by bending an end of the second connecting member 221 that is closer to the front panel 211 . One end of the second connecting piece 221 is provided with a fixing member 225 along the direction opposite to the second connecting piece 221 , and one end of the folding arm 224 away from the second connecting piece 221 is along the opposite direction to the second connecting piece 221 . A spacer 226 is provided on the opposite direction of the second connecting piece 221 , that is, with the plane where the front panel 211 is located as a boundary, the fixing part 225 and the spacer 226 are located on the other side opposite to the second connecting piece 221 . The folding arm 224 , the fixing part 225 and the gasket 226 are all embedded in the casing 21 , wherein the folding arm 224 is embedded in the front panel 211 , and the fixing part 225 is embedded in the front panel 211 . It is arranged in the upper panel 215 of the casing 21 .

Please further refer to FIG. 4 and FIG. 5 , the upper panel 215 of the housing 21 is provided with an air intake hole 216 , and the fixing member 2125 is also provided with a first communication hole 227 , and the first communication hole 227 is connected to the The air intake holes 216 are matched to avoid clogging of the air intake holes 216 .

Please refer to FIG. 1 and FIG. 7 . Specifically, in order to enable the tire pressure sensing device 100 to work normally (ie, to measure the air pressure in the tires of the automobile), the tire pressure sensing device 100 further includes a The PCB assembly 23 in 21 and the battery 24 for supplying power to the PCB assembly 23, and the tire pressure sensing device 100 further includes a housing cover 26, which can be connected with the housing 21 to form a hollow container space, so that the PCB assembly 23 and the battery 24 can be arranged in the accommodating space.

The PCB assembly 23 includes a circuit board 231 and a sensor 232. The sensor 232 is a pressure sensor and is used to measure the air pressure in the tire. Of course, for various purposes, the sensor 232 can also include a pressure sensor and a temperature sensor. Measure the air pressure inside the tire, and can also measure the temperature inside the tire. The sensor 232 is disposed on the side of the circuit board 231 close to the upper panel 215 , and a sealing gasket 25 is provided between the sensor 232 and the air inlet 216 , and the sealing gasket 25 is formed with the inlet and outlet. The air hole 216 communicates with the channel 251, so that the gas in the tire can enter the housing 21 through the air intake hole 216 and the channel 251, and be sensed by the sensor 232 in the PCB assembly 23, and also prevent The gas in the tire enters the non-sensing area of the tire pressure sensing device 100 from the gap between the air intake hole 216 and the sensor 232, so that the measurement result is more accurate.

The battery 24 is used for supplying power to the PCB assembly 23 . In addition, a positive battery sheet 241 and a negative battery sheet 242 are provided to cooperate with the battery 24 , and the positive battery sheet 241 is provided with a first battery. A fixing hole 2411, a second fixing hole 2421 is formed on the negative battery sheet 242, and a third fixing hole 2311, a third fixing hole 2311, a third fixing hole 2311, a third fixing hole 2311, a third fixing hole 2411, a third fixing hole 2411, a third fixing hole 2411, a third fixing hole 2411, a third fixing hole 2411, a third fixing hole 2411, and a third fixing hole 2411 are respectively formed on the circuit board 231 corresponding to the first fixing hole 2411 and the second fixing hole 2421. Four fixing holes 2312. Correspondingly, in order to fix the PCB assembly 23 and the battery 24, a first stud 217 and a second stud 218 are respectively provided inside the casing 21 at both ends of the housing 21 close to the front panel 211, and the gasket 226 Fitted with the top of the first stud 217, the gasket 226 is provided with a second communication hole 228 to cooperate with the third communication hole (not numbered, the same below) on the first stud 217 , and a fourth communication hole (not numbered, the same below) is opened on the second stud 218 . When the PCB assembly 23 and the battery 24 are installed into the housing 21, a screw 28 is used to pass through the first fixing hole 2411, the third fixing hole 2311, the second communication hole 228 and the third communication hole in sequence and connect to each other. At the same time, use another screw 28 to pass through the second fixing hole 2421 , the fourth fixing hole 2312 and the fourth communication hole in turn and screw it tightly, so that the PCB assembly 23 and the battery 24 can be fixed on the housing 21 On this basis, the metal connector 22 is electrically connected to the PCB assembly 23, so the metal connector 22 can function as an antenna to a certain extent.

The above are only some embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (7)

1. A tire pressure sensing device, characterized in that it comprises a tire pressure sensing assembly and a valve assembly, wherein the valve assembly is pivotally connected to the tire pressure sensing assembly, and the tire pressure sensing assembly comprises a casing body; The casing is provided with a connecting piece for pivoting with the valve assembly and at least one limiting piece that can abut against the wheel hub to limit the lateral deflection of the tire pressure sensing component, and the limiting piece is connected to the wheel hub. The connecting piece is connected as a whole; the connecting piece is fixed on the front panel of the housing, and the limiting piece is fixed on the housing along the direction of force applied when the valve assembly is installed and tightened On the side panel of one side, on the front panel of the housing and on the side of the connector along the direction of force application when the valve assembly is installed and tightened, or/and on the side along the Describe the junction of the front panel and the side panel on one side of the force application direction when the valve assembly is installed and tightened; A connecting piece is also provided on the front panel along the opposite side of the force application direction when the valve assembly is installed and tightened, a pivot slot is formed between the two connecting pieces, and each connecting piece is provided with a connecting hole , the limiter extends along the connecting piece to the end away from the front panel, and the distance between the end point farthest from the front panel on the limiter and the plane where the front panel is located is greater than or equal to the distance between the central axis of the connecting hole and the front panel. 2 . The tire pressure sensing device according to claim 1 , wherein the bottom surface of the limiting member is an arc surface. 3 . 3 . The tire pressure sensing device according to claim 1 , wherein a shaft hole matching with the connecting hole is provided at one end of the valve assembly close to the housing. 4 . 4 . The tire pressure sensing device according to claim 1 , wherein a limiter is also provided on the connecting piece on the side of the front panel opposite to the direction of force applied when the valve assembly is installed and tightened. 5 . The position piece is arranged on the side opposite to the pivot slot. 5 . The tire pressure sensing device according to claim 1 , wherein at least one of the two connectors is a metal connector. 6 . 6 . The tire pressure sensing device according to claim 1 , wherein a connecting groove matching with the connecting piece is formed on one end of the valve assembly close to the casing. 7 . 7. An automobile, characterized in that, the automobile adopts the tire pressure sensing device according to any one of claims 1-6, and the tire pressure sensing assembly in the tire pressure sensing device is provided in the tire pressure sensing device. Inside each tire of a car.