CN115195360A - Tire pressure detection device - Google Patents

Abstract

The invention discloses a tire pressure detection device, which is suitable for being fixed on a wheel frame. The wheel frame has an inner ring wall, an outer ring wall and a connecting wall. The connecting wall is connected between the inner ring wall and the outer ring wall. The inner annular wall has opposite first annular end surfaces and second annular end surfaces. The tire pressure detection device includes a body and a fixing member. The body is adapted to be disposed on the connecting wall adjacent to the first annular end face. The fixing piece is connected to the body and extends from the first annular end surface to the second annular end surface to be clamped to the inner annular wall.

Description

Tire pressure detection device

technical field

The invention relates to a detection device, in particular to a tire pressure detection device.

Background technique

Since the condition of tires is closely related to driving safety, many vehicles are currently equipped with a Tire Pressure Monitoring System (TPMS). The above-mentioned tire pressure detection system includes a plurality of tire pressure detection devices to detect the tire pressure of each tire in real time.

Generally speaking, tire pressure detection devices can be roughly divided into two types: inner tire type and outer tire type. The tire pressure detection device outside the tire is directly installed on the valve of the tire, but when the vehicle is driven for a long time, the valve may be at risk of breaking. The tire pressure detection device of the tire type is usually adhered to the wheel frame by means of a glue, but when the vehicle is driven for a long time, the glue may deteriorate, causing the tire pressure detection device to fall off.

SUMMARY OF THE INVENTION

The invention provides a tire pressure detection device to improve the firmness of installation.

The tire pressure detection device provided by the present invention is suitable for being fixed on a wheel frame, and the wheel frame has an inner ring wall, an outer ring wall and a connecting wall. The connecting wall is connected between the inner ring wall and the outer ring wall. The inner annular wall has opposite first annular end surfaces and second annular end surfaces. The tire pressure detection device includes a body and a fixing member. The body is adapted to be disposed on the connecting wall adjacent to the first annular end face. The fixing piece is connected to the body and extends from the first annular end surface to the second annular end surface to be clamped to the inner annular wall.

In an embodiment of the present invention, the above-mentioned fixing member has a connecting portion, a first abutting portion, a second abutting portion, an extending portion and a hook portion. The connecting portion is connected to the side wall of the body. The first abutting portion is connected to the connecting portion and abuts against the first annular end surface. The second abutting portion abuts against the second annular end surface. The extension part is connected between the first abutting part and the second abutting part. The hook portion is connected to the side of the second abutting portion away from the extension portion, and is hooked against the inner ring wall.

In an embodiment of the present invention, the side wall of the main body has at least one button hole. The connecting portion extends into the inner side of the side wall and has at least one buckle portion, and the at least one buckle portion is buckled with at least one button hole.

In an embodiment of the present invention, the above-mentioned body abuts against the inner ring wall.

In an embodiment of the present invention, the above-mentioned body includes an inner casing, a sensing module and an outer casing. The inner housing has a side wall, a bottom wall, and an opening opposite the bottom wall, wherein the side wall is connected to the bottom wall. The sensing module is arranged in the inner casing. The sensing module includes an air pressure sensing element. The outer casing and the inner casing are combined with each other. The outer casing has a top wall opposite to the bottom wall, the top wall covers the opening and has a through hole.

In an embodiment of the present invention, the material of the inner casing includes acrylonitrile-butadiene-styrene copolymer (ABS) or polyvinyl chloride (PVC), and the material of the outer casing includes silica gel.

In an embodiment of the present invention, the above-mentioned body further includes a cover plate covering the opening. The cover plate has through holes, and the outer casing covers the cover plate.

In an embodiment of the present invention, the above-mentioned body further includes a sealing layer, which is disposed on the inner casing and covers the sensing module. The encapsulation layer has through holes exposing the sensing modules.

In an embodiment of the present invention, the above-mentioned body further includes a power supply element, which is disposed in the inner casing and is electrically connected to the sensing module.

In an embodiment of the present invention, the above-mentioned power supply element includes a battery module, a piezoelectric module or a thermoelectric module.

In an embodiment of the present invention, the above-mentioned sensing module further includes a temperature sensing element.

In an embodiment of the present invention, the above-mentioned body further includes a wireless signal transceiving element, which is disposed in the inner casing and is electrically connected to the sensing module.

In an embodiment of the present invention, the above-mentioned tire pressure detection device further includes a rubber layer disposed on the main body. The adhesive layer is suitable for adhering the body to the connecting wall.

In an embodiment of the present invention, the connecting wall of the wheel frame has a plurality of ribs, and the body abuts between two adjacent ribs.

Because the tire pressure detection device of the present invention is clamped to the inner ring wall of the wheel frame by the fixing member, wherein the fixing member extends from the first annular end face to the second annular end face of the inner ring wall, so as to be completely clamped in the inner ring wall. ring wall. Therefore, the tire pressure detection device of the present invention can be firmly installed on the wheel frame, thereby improving the safety of driving. The above description is only an overview of the technical solutions of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand , the following specific preferred embodiments, and in conjunction with the accompanying drawings, are described in detail as follows.

Description of drawings

FIG. 1 is a schematic diagram of a tire pressure detection device fixed on a wheel frame according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of the tire pressure detection device of FIG. 1 .

FIG. 3 is a schematic diagram of the relative positional relationship between the fixing member and the inner ring wall of FIG. 2 .

FIG. 4 is an exploded schematic view of a partial element of the body of FIG. 2 .

FIG. 5 is a schematic cross-sectional view of the body of FIG. 2 .

6 is a schematic cross-sectional view of a body of a tire pressure detection device according to another embodiment of the present invention.

Detailed ways

FIG. 1 is a schematic diagram of a tire pressure detection device fixed on a wheel frame according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the tire pressure detection device of FIG. 1 . Please refer to FIG. 1 and FIG. 2 , the tire pressure detection device 100 is fixed on the wheel frame W. The wheel frame W has an inner ring wall IW, an outer ring wall OW, and a connecting wall CW. The connecting wall CW is connected between the inner ring wall IW and the outer ring wall OW. The inner annular wall IW has opposite first annular end surfaces AS1 and second annular end surfaces AS2. The tire pressure detection device 100 includes a main body 110 and a fixing member 120 . The body 110 is adapted to be disposed on the connecting wall CW, adjacent to the first annular end face AS1. The fixing member 120 is connected to the body 110 and extends from the first annular end surface AS1 to the second annular end surface AS2 to be clamped to the inner annular wall IW. In this embodiment, the tire pressure detection device 100 is, for example, an in-tire tire pressure detection device 100 , but the present invention is not limited thereto.

FIG. 3 is a schematic diagram of the relative positional relationship between the fixing member and the inner ring wall of FIG. 2 . Referring to FIGS. 2 and 3 , the fixing member 120 may have a connecting portion 121 , a first abutting portion 122 , a second abutting portion 123 , an extending portion 124 and a hook portion 125 . The connecting portion 121 is connected to the side wall 111 of the body 110 . The first abutting portion 122 is connected to the connecting portion 121 and abuts against the first annular end surface AS1. The second abutting portion 123 abuts against the second annular end surface AS2. The extending portion 124 is connected between the first abutting portion 122 and the second abutting portion 123 and can abut against the inner side surface IS of the inner ring wall IW (also shown in FIG. 1 ). The hook portion 125 is connected to a side of the second abutting portion 123 away from the extending portion 124 and is hooked against the inner ring wall IW. To be more specific, the hook portion 125 of this embodiment is, for example, hooked against the edge E of the second annular end surface AS2 (also shown in FIG. 1 ), but the invention is not limited thereto. In addition, the sizes of the first abutting portion 122 , the second abutting portion 123 , the extending portion 124 and the hook portion 125 can be adjusted according to the size of the inner ring wall IW of the wheel frame W, so that the fixing member 120 can be firmly clamped on the inner ring wall IW of the wheel frame W. In this embodiment, the material of the fixing member 120 may include metal, but is not limited thereto.

FIG. 4 is an exploded schematic view of a partial element of the body of FIG. 2 . 2 , 3 and 4 , the side wall 111 of the main body 110 may have at least one button hole H, and the connecting portion 121 extends into the inner side of the side wall 111 and may have at least one button portion corresponding to the aforementioned at least one button hole H I. Specifically, the body 110 includes, for example, an inner casing 112 and an outer casing 114 , and the aforementioned side wall 111 is, for example, a side wall of the inner casing 112 . In this embodiment, the side wall 111 has three button holes H and the connecting portion 121 has three button portions I as an example, but the number is not limited thereto. The buckle portions I are respectively buckled in the button holes H, so that the fixing member 120 can be fixed on the side wall 111 of the main body 110 .

Please refer to FIG. 1 and FIG. 2 again, the main body 110 of this embodiment can abut against the inner ring wall IW. Specifically, the side of the main body 110 connected to the fixing member 120 can abut against the inner ring wall IW, and clamp the inner ring wall IW together with the first abutting portion 122 and the extending portion 124 of the fixing member 120 for further lifting The installation firmness of the tire pressure detection device 100 . On the other hand, the shape of the body 110 can be adjusted according to the detailed structure of the wheel frame W. For example, in this embodiment, the connecting wall CW of the wheel frame W may have a plurality of ribs R, and the body 110 may abut between two adjacent ribs R. Specifically, opposite ends of the main body 110 abut against two adjacent ribs R of the wheel frame W to fix the position of the tire pressure detection device 100 on the connecting wall CW. In this way, the tire pressure detection device 100 can be prevented from being displaced on the connecting wall CW when the wheel frame W rotates at a high speed.

FIG. 5 is a schematic cross-sectional view of the body of FIG. 2 . Please refer to FIG. 4 and FIG. 5 , in addition to the above-mentioned inner casing 112 and outer casing 114 , the main body 110 may further include a sensing module 113 . In addition to the aforementioned side wall 111 , the inner casing 112 may further have a bottom wall 1120 and an opening O opposite to the bottom wall 1120 , wherein the side wall 111 is connected to the bottom wall 1120 . The sensing module 113 is disposed in the inner casing 112 and includes an air pressure sensing element 1130 to detect the air pressure in the inner casing 112 . The outer casing 114 and the inner casing 112 are combined with each other, and the outer casing 114 has a top wall 1140 opposite to the bottom wall 1120 . The top wall 1140 covers the opening O and has a through hole T1 (drawn in FIG. 4 ). Specifically, the through hole T1 communicates with the inner space of the inner casing 112 so that the air pressure sensing element 1130 can detect the tire pressure.

In this embodiment, the body 110 may further include a cover plate 115 covering the opening O. The cover plate 115 has a through hole T2 , and the outer casing 114 covers the cover plate 115 . Specifically, the cover plate 115 can further seal the interior of the inner casing 112 , thereby protecting the electronic components located in the inner casing 112 , such as the sensing module 113 . Similarly, the through hole T2 of the cover plate 115 communicates with the inner space of the inner casing 112 and the through hole T1 of the outer casing 114, so that the air pressure sensing element 1130 can detect the tire pressure.

Incidentally, the outer casing 114 may have a side wall 1141 connected to the top wall 1140 , and the side wall 1141 of the outer casing 114 may overlap the side wall 111 of the inner casing 112 to enhance the structural strength of the main body 110 . In this embodiment, the material of the inner casing 112 and the material of the outer casing 114 are, for example, non-metallic materials. For example, the material of the inner casing 112 may include Acrylonitrile Butadiene Styrene (ABS) or Polyvinyl Chloride (PVC), and the material of the outer casing 114 may include silicone (Silicone) , but not limited to this.

In addition to the air pressure sensing element 1130 , the sensing module 113 of this embodiment may further include a temperature sensing element 1131 . The temperature sensing element 1131 can detect the temperature of the gas in the tire to provide more information about the tire. The body 110 further includes a circuit board B, for example, and the air pressure sensing element 1130 and the temperature sensing element 1131 are disposed on the circuit board B, for example. It can be understood that, in order to supply power to the sensing module 113 , the body 110 may further include a power supply element 116 . The power supply element 116 is disposed in the inner casing 112 and is electrically connected to the sensing module 113 , for example, electrically connected to the sensing module 113 via an internal circuit of the circuit board B. The power supply element 116 of this embodiment includes, for example, a battery module, a piezoelectric (piezoelectricity) module or a thermoelectric (thermoelectric) module, but is not limited thereto. Specifically, the piezoelectric module can convert the pressure in the tire into electrical energy, and the thermoelectric module can convert the thermal energy in the tire into electrical energy. In addition, the body 110 may further include a wireless signal transceiving element 117 disposed in the inner casing 112 and electrically connected to the sensing module 113 to transmit and receive data of the air pressure sensing element 1130 and data of the temperature sensing element 1131 . For example, the wireless signal transceiver element 117 is electrically connected to the sensing module 113 and the power supply element 116 through a circuit inside the circuit board B. As shown in FIG. In addition, the wireless signal transceiving element 117 may be a Bluetooth (Bluetooth) transceiving element or a wireless communication (Wi-Fi) transceiving element, but is not limited thereto.

Incidentally, the tire pressure detection device 100 may further include a rubber layer 130 (shown in FIG. 5 ) disposed on the main body 110 . The adhesive layer 130 is used to bond the main body 110 to the connecting wall CW of the wheel frame W (as shown in FIG. 1 ), so as to further enhance the installation firmness of the tire pressure detection device 100 . The adhesive layer 130 may be disposed on the bottom wall 1120 of the inner casing 112, but is not limited thereto. The adhesive layer 130 is, for example, an adhesive material suitable for adhering to a metal surface, and may have the characteristics of waterproof and high temperature resistance. For example, 3M Company's 944 double-sided tape, but not limited thereto.

Compared with the prior art, since the tire pressure detection device 100 of the present embodiment is clamped to the wheel frame W by the fixing member 120 , the problem of the tire pressure detection device falling off due to the deterioration of the colloid in the prior art can be avoided. In addition, because the fixing member 120 extends from the first annular end surface AS1 to the second annular end surface AS2 of the inner annular wall IW to be completely clamped to the inner annular wall IW, the tire pressure detection device 100 of this embodiment can be firmly It is securely mounted on the wheel frame W, thereby improving the safety of driving.

6 is a schematic cross-sectional view of a body of a tire pressure detection device according to another embodiment of the present invention. The structure and advantages of the tire pressure detection device 100a of this embodiment are similar to those of the previous embodiments, and only the differences will be described below. The body 110a of this embodiment omits the cover plate 115 in FIG. 5 , and instead uses the sealing layer 118a to protect the electronic components in the inner casing 112 . Specifically, the encapsulant layer 118 a is disposed in the inner casing 112 and covers the sensing module 113 and other electronic components, such as the power supply component 116 and the wireless signal transceiver component 117 . In addition, the encapsulant layer 118a has a through hole T3 exposing the sensing module 113 . Specifically, the sealant layer 118a has, for example, two through holes T3 exposing the air pressure sensing element 1130 and the temperature sensing element 1131 respectively, so as to detect the air pressure and temperature in the tire. Incidentally, the tire pressure detection device 100a of this embodiment may be provided with the rubber layer 130 shown in FIG. 5, but is not limited thereto.

To sum up, because the present invention adopts the tire pressure detection device clamped on the inner ring wall of the wheel frame with the fixing member, wherein the fixing member extends from the first annular end face of the inner annular wall to the second annular end face, so as to Completely clamped to the inner ring wall. Therefore, the tire pressure detection device of the present invention can be firmly installed on the wheel frame, thereby improving the safety of driving.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. The technical personnel, without departing from the scope of the technical solution of the present invention, can make some changes or modifications by using the methods and technical contents disclosed above to be equivalent embodiments of equivalent changes, provided that they do not depart from the content of the technical solutions of the present invention, Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (14)

1. A tire pressure detecting device is suitable for being fixed on a wheel frame, the wheel frame is provided with an inner ring wall, an outer ring wall and a connecting wall, the connecting wall is connected between the inner ring wall and the outer ring wall, the inner ring wall is provided with a first annular end face and a second annular end face which are opposite, the tire pressure detecting device is characterized by comprising:

a body adapted to be disposed on the connecting wall and adjacent to the first annular end surface; and

and the fixing piece is connected to the body and extends from the first annular end face to the second annular end face so as to be clamped on the inner annular wall.

2. The tire pressure detecting device as claimed in claim 1, wherein the fixing member has:

a connecting part connected to one side wall of the body;

a first abutting part connected to the connecting part and abutting against the first annular end face;

a second abutting part abutting against the second annular end face;

an extension part connected between the first abutting part and the second abutting part; and

a hook part connected to one side of the second contact part far away from the extension part and hooked against the inner ring wall.

3. The tire pressure detecting device of claim 2, wherein the sidewall of the body has at least one fastening hole, and the connecting portion extends into the sidewall and has at least one fastening portion fastened to the at least one fastening hole.

4. The tire pressure detecting device of claim 3, wherein the body abuts against the inner annular wall.

5. The tire pressure detecting device as claimed in claim 1, wherein the body comprises:

an inner shell having a side wall, a bottom wall and an opening opposite to the bottom wall, wherein the side wall is connected to the bottom wall;

a sensing module arranged in the inner shell, wherein the sensing module comprises an air pressure sensing element; and

an outer shell combined with the inner shell, wherein the outer shell is provided with a top wall opposite to the bottom wall, and the top wall covers the opening and is provided with a through hole.

6. The tire pressure detecting device as claimed in claim 5, wherein the material of the inner housing comprises acrylonitrile butadiene styrene or polyvinyl chloride, and the material of the outer housing comprises silicone.

7. The tire pressure detecting device as claimed in claim 5, wherein the body further includes a cover plate covering the opening, the cover plate has a through hole, and the outer casing covers the cover plate.

8. The tire pressure detecting device of claim 5, wherein the body further includes a sealant layer disposed in the inner housing and covering the sensing module, the sealant layer having a through hole exposing the sensing module.

9. The tire pressure detecting device of claim 5, wherein the body further includes a power supply element disposed in the inner housing and electrically connected to the sensing module.

10. The tire pressure detecting device of claim 9, wherein the power supply element comprises a battery module, a piezoelectric module or a thermoelectric module.

11. The tire pressure detecting device of claim 5, wherein the sensing module further comprises a temperature sensing element.

12. The tire pressure detecting device according to claim 5, wherein the body further includes a wireless signal transceiver disposed in the inner housing and electrically connected to the sensing module.

13. The tire pressure detecting device of claim 1, further comprising a glue layer disposed on the body and adapted to adhere the body to the connecting wall.

14. The tire pressure detecting device as claimed in claim 1, wherein the connecting wall of the rim has a plurality of ribs, and the body abuts between two adjacent ribs.

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