TW202240138A - Tire pressure monitoring device - Google Patents

Abstract

A tire pressure monitoring device adapted to be fixed on a wheel frame is provided. The wheel frame has an inner annular wall, an outer annular wall and a connecting wall. The connecting wall is connected between the inner annular wall and the outer annular wall. The inner annular wall has a first annular end surface and a second annular end surface opposite to the first annular end surface. The tire pressure monitoring device includes a main body and a fixing element. The main body is adapted to be disposed on the connecting wall and adjacent to the first annular end surface. The fixing element is connected to the main body and extends from the first annular end surface to the second annular end surface to clamp the inner annular wall.

Description

tire pressure monitoring device

The invention relates to a detection device, especially a tire pressure detection device.

Since the status of tires is closely related to driving safety, many vehicles are now equipped with Tire Pressure Monitoring System (TPMS). The above tire pressure detection system includes multiple 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: in-tire type and outside-tire type. The tire pressure detection device outside the tire is directly installed on the air nozzle of the tire, but when the vehicle is driven for a long time, it may cause the risk of the air nozzle breaking. The tire pressure detection device in the tire is usually glued to the wheel frame by glue, but when the vehicle is driven for a long time, the glue may deteriorate and cause the tire pressure detection device to fall off.

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 ring wall has opposite first and second annular end surfaces. The tire pressure detection device includes a body and a fixing part. The body is adapted to be disposed on the connecting wall and adjacent to the first annular end surface. The fixing part is connected to the body, and extends from the first annular end surface to the second annular end surface, so as to be clamped to the inner ring wall.

In an embodiment of the present invention, the above-mentioned fixing element has a connecting portion, a first abutting portion, a second abutting portion, an extension portion and a hook portion. The connection part 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 contact part and the second contact part. The hook portion is connected to a side of the second contact portion away from the extension portion, and hooks against the inner ring wall.

In an embodiment of the present invention, the side wall of the above-mentioned body has at least one button hole. The connecting part protrudes into the inner side of the side wall and has at least one fastening part, and the at least one fastening part is fastened to at least one fastening 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 shell, a sensing module and an outer shell. The inner housing has a side wall, a bottom wall and an opening opposite to 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 shell includes ABS or PVC, and the material of the outer shell includes silicone.

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

In an embodiment of the present invention, the above-mentioned body further includes a sealant layer disposed on the inner casing and covering the sensing module. The sealing layer has a through hole exposing the sensing module.

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

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

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

Since the tire pressure detection device of the present invention is clamped on the inner ring wall of the wheel frame by the fixing member, wherein the fixing member extends from the first annular end surface of the inner ring wall to the second annular end surface, so as to be completely clamped on the inner ring wall. Therefore, the tire pressure detection device of the present invention can be firmly installed on the wheel frame, thereby improving driving safety.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying 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 . Please refer to FIG. 1 and FIG. 2 , the tire pressure detection device 100 is fixed on the wheel frame W. As shown in FIG. 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 ring wall IW has a first annular end surface AS1 and a second annular end surface AS2 opposite to each other. The tire pressure detection device 100 includes a body 110 and a fixing part 120 . The body 110 is adapted to be disposed on the connecting wall CW and adjacent to the first annular end surface AS1. The fixing part 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 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 in Fig. 2 . Referring to FIG. 2 and FIG. 3 , the fixing member 120 can have a connecting portion 121 , a first abutting portion 122 , a second abutting portion 123 , an extension portion 124 and a hook portion 125 . The connecting portion 121 is connected to the sidewall 111 of the main 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 extension portion 124 is connected between the first abutting portion 122 and the second abutting portion 123 and can abut against the inner 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 contact portion 123 away from the extension portion 124 and hooks against the inner ring wall IW. In detail, 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 size of the first abutting portion 122, the second abutting portion 123, the extension 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 partial elements of the body of FIG. 2 . 2, 3 and 4, the side wall 111 of the 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 I corresponding to the at least one button hole H. 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, it is taken that the side wall 111 has three button holes H and the connecting portion 121 has three button parts I as an example, but the number is not limited thereto. The buckle parts I are respectively buckled to the buckle 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 body 110 of this embodiment can abut against the inner ring wall IW. Specifically, one side of the main body 110 connected to the fixing part 120 can abut against the inner ring wall IW, and clamp the inner ring wall IW together with the first abutting part 122 and the extension part 124 of the fixing part 120, so as to further enhance The installation firmness of the tire pressure detection device 100 . On the other hand, the shape of the main body 110 can be adjusted according to the detail 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 main body 110 may abut between two adjacent ribs R. In detail, opposite ends of the main body 110 are 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 . Referring to FIG. 4 and FIG. 5 , the main body 110 may further include a sensing module 113 in addition to the above-mentioned inner shell 112 and outer shell 114 . In addition to the aforementioned sidewall 111 , the inner housing 112 may also have a bottom wall 1120 and an opening O opposite to the bottom wall 1120 , wherein the sidewall 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 for detecting the air pressure in the inner casing 112 . The outer shell 114 is combined with the inner shell 112 , and the outer shell 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 (shown in FIG. 4 ). In detail, 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. As shown in FIG. 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 inside 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 shell 112 and the through hole T1 of the outer shell 114 so that the air pressure sensing element 1130 can detect the tire pressure.

Incidentally, the outer casing 114 can have a sidewall 1141 connected to the top wall 1140 , and the sidewall 1141 of the outer casing 114 can overlap the sidewall 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 outer casing 114 are, for example, non-metallic materials. For example, the material of the inner shell 112 may include acrylonitrile/butadiene/styrene copolymer (Acrylonitrile Butadiene Styrene, ABS) or polybutadiene carbonate (Polybutadiene Carbonate, PBC), and the material of the outer shell 114 may be Including silicone (Silicone), but not limited thereto.

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

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

Compared with the conventional technology, since the tire pressure detection device 100 of this 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 deterioration of the glue in the conventional technology can be avoided. In addition, since 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 on the inner annular wall IW, the tire pressure detection device 100 of this embodiment can It is firmly installed on the wheel frame W, thereby improving the safety of driving.

6 is a schematic cross-sectional view of the main 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 shown in FIG. 5 , but uses a sealant layer 118a to protect the electronic components in the inner casing 112 . Specifically, the sealant 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 transceiver component 117 . In addition, the sealing layer 118 a has a through hole T3 exposing the sensing module 113 . Specifically, the sealant layer 118 a has, for example, two through holes T3 , respectively exposing the air pressure sensing element 1130 and the temperature sensing element 1131 , so as to detect the air pressure and temperature inside the tire. Incidentally, the tire pressure detection device 100a of this embodiment can be provided with the adhesive layer 130 shown in FIG. 5 , but is not limited thereto.

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

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field of the present invention can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the scope of the appended patent application.

100, 100a: tire pressure detection device 110, 110a: body 111, 1141: side wall 112: Inner shell 113:Sensing module 114: Outer shell 115: cover plate 116: Power supply components 117: Wireless signal transceiver components 118a: sealant layer 120:Fixer 121: connection part 122: The first contact part 123: the second abutment part 124: Extension 125: hook 130: Adhesive layer 1120: bottom wall 1130: air pressure sensing element 1131: temperature sensing element 1140: top wall AS1: First annular end face AS2: Second annular end face B: circuit board CW: connecting wall E: edge H: buttonhole I: buckle IS: medial side IW: inner ring wall O: open OW: outer ring wall R: Rib T1, T2, T3: through holes W: rim

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 in Fig. 2 . FIG. 4 is an exploded schematic view of partial elements 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 the main body of a tire pressure detection device according to another embodiment of the present invention.

100: Tire pressure detection device

110: Ontology

120:Fixer

AS1: First annular end face

AS2: Second annular end face

CW: connecting wall

E: edge

IS: medial side

IW: inner ring wall

OW: outer ring wall

R: Rib

W: rim

Claims (14)

A tire pressure detection device, suitable for fixing 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 The inner ring wall has a first annular end surface and a second annular end surface opposite, and the tire pressure detection device includes: a body adapted to be disposed on the connecting wall adjacent to the first annular end surface; and A fixing piece is connected to the body and extends from the first annular end surface to the second annular end surface to be clamped on the inner ring wall. The tire pressure detection device according to claim 1, wherein the fixing part has: a connecting portion connected to the side wall of the body; a first abutting portion, connected to the connecting portion and abutted against the first annular end surface; a second abutting portion abutting against the second annular end surface; an extension part connected between the first abutment part and the second abutment part; and A hook portion is connected to a side of the second abutting portion away from the extension portion, and is hooked against the inner ring wall. The tire pressure detecting device according to claim 2, wherein the side wall of the main body has at least one button hole, and the connecting portion protrudes into the inner side of the side wall and has at least one buckle portion, which is fastened to the at least one button hole. The tire pressure detection device according to claim 3, wherein the main body abuts against the inner ring wall. The tire pressure detection device according to claim 1, wherein the body includes: an inner housing having the side wall, a bottom wall and an opening opposite to the bottom wall, the side wall is connected to the bottom wall; A sensing module is arranged in the inner casing, the sensing module includes an air pressure sensing element; and An outer casing is combined with the inner casing. The outer casing has a top wall opposite to the bottom wall. The top wall covers the opening and has a through hole. The tire pressure detection device according to claim 5, wherein the material of the inner shell includes ABS or PVC, and the material of the outer shell includes silicone. The tire pressure detecting device according to 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. The tire pressure detection device according to claim 5, wherein the body further includes a sealing layer, which is arranged on the inner casing and covers the sensing module, and the sealing layer has a through hole exposing the sensing module. mod. The tire pressure detection device according to claim 5, wherein the main body further includes a power supply element disposed in the inner casing and electrically connected to the sensing module. The tire pressure detection device according to claim 9, wherein the power supply element includes a battery module, a piezoelectric module or a thermoelectric module. The tire pressure detection device according to claim 5, wherein the sensing module further includes a temperature sensing element. The tire pressure detection device according to claim 5, wherein the main body further includes a wireless signal transceiving element, which is arranged in the inner casing and electrically connected to the sensing module. The tire pressure detection device according to Claim 1 further includes an adhesive layer disposed on the body and suitable for bonding the body to the connecting wall. The tire pressure detecting device according to claim 1, wherein the connecting wall of the wheel frame has a plurality of ribs, and the main body abuts between two adjacent ribs.

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