TW200426048A - Tire pressure monitoring device and method - Google Patents

Abstract

A low tire pressure monitoring device that is affixed to a tire valve stem (22) and methods of using the same. The monitoring device comprises a housing (26) having a counter-pressure chamber (21), a main pressure chamber (94), and a flexible membrane (36) that separates the two chambers. The monitoring device is calibrated by trapping the tire initial air pressure in the counter pressure chamber (21). The air pressure within the main pressure chamber (94) is equivalent to he air pressure within the tire. Over the course of time., the air pressure within the tire and concomitantly the air pressure within the main pressure chamber decreases. When the pressure in the counter pressure chamber is greater than the pressure within the main pressure chamber (94), the flexible membrane (36) touches and completes an electrical circuit (27) and a warning signal is emitted.

Description

200426048

1. Technical Field to which the Invention belongs The present invention particularly relates to the tire pressure of a tire connected to a tire stern 2. The most common problem with prior art tires is to inflate the tire when it is loaded, and there are precautions in the vehicle user manual to check the tire. When the tire pressure is too low, it has an adverse effect, and it is also a factor that promotes separation. Recently, the direct cause is the tire tread delamination. Unless the tire pressure is appropriate, under-inflated tires cannot pass is a problem of under-inflated tires. It is not checked after Dang'an. Although ^, in fact, few people regularly inspect and drive will not only maneuver the tire tread layering of the vehicle (tread more than 1,000 people die in the United States due to rollovers. Therefore, 'appropriate air pressure is extremely heavy or the maximum cannot be obtained. Inspection of fuel efficiency guaranteed mileage.

Due to the emergence of various vehicle tires, the recommended air pressures used today are also very different. For example, there are many vehicles that require different inflation pressures on the front and rear tires. In addition, many public vehicles require higher or lower tire pressures than ordinary automobile tires. Therefore, once the owner has inflated the tires to the appropriate tire pressure ', the user must know the combined pressure of each tire. After driving the tire for a certain period of time, the user must be able to determine when the pressure in the tire has changed enough to inflate. 3. Summary of the Invention The present invention relates to a tire pressure monitoring skirt fixed to a tire valve stem.

Page 6 200426048 V. Description of the invention (2) Predetermined quantity ί, ί The tire pressure has decreased relative to the initial tire pressure. The tire and tire pressure monitoring device issues a warning to the driver. In the consistent implementation example, An I is in wheel monitoring. The device responds to the lower tire pressure of the tire tire pressure: f: D tire tire pressure on the flash cup. Rg, > a jg, lower P cow. For example, the dream department 7, g through vision, audio frequency, electromagnetic or 1 忒 sad can pass f + Yu 畀, i / v eight ways of narrating the heart number, indicating that the tire pressure = two; At least a predetermined amount. Best of all, except for mobile weighing: unfavorable? ring. In one embodiment, the moving machine is not used or according to the present invention. In the preferred embodiment of the present invention, the delisting, debris, or other road dangerous objects will not adversely affect the operation or accuracy of the device . 1 ΐ Ϊ 3 The tire tire pressure monitoring device according to the embodiment of the present invention includes a solid factory ::; the housing includes two π $ Ρ separated by an elastic diaphragm, the first pressure chamber when the second device is connected to the tire valve The first chamber is sealed by wheel m: r and the tire pressure monitoring is calibrated. 1 also pressurizes the second chamber, but the second chamber has a drop with the wheel. The air pressure in the second room is lower than that in the second room]: a signal device sends a tire pressure to the driver. It also involves the use of a tire pressure monitoring device. The device was connected between the tires according to the dream data method 'followed by calibration. The 200426048 signal can be a light signal such as a continuous or flashing light, a beep sound signal, such as an analog or digital signal broadcast or sent on the device or to display any other information on tire pressure changes;!: Or any other type of low-voltage alarm information. x shows four. Embodiments The present invention relates to the installation and use of the device down to a predetermined differential pressure frequency, audio frequency, electricity, electricity. Referring to FIG. 1, the figure shows an alternative embodiment, 2-4 tire parts 26 and the lower body As shown in Part 2, grease, polycarbonate, and the like, in the embodiment of the lens 24, the lens can have an amount of air with a lens closing device of VI and a pressure of P1 (and the accompanying lens 24 also includes a threaded groove 34. The lens 2, Threaded upper flange 3 〇Edge 3 2 and annular groove type tire tire pressure monitoring installation method fixed on the tire valve stem. The tire tire pressure monitoring device responds to the tire tire pressure, for example, the tire tire pressure See & signal or other signals. Another tire pressure monitoring device 2 is shown on the tire valve stem 22. As shown in the figure, the monthly mouth pressure monitoring device 20 includes a lens 2 and a main body 8 ° The lens 24 is usually made of a plastic material such as acrylic, but it is not limited to these materials. As shown in Figure 2, the top = cylindrical shape. In other alternatives, the main hemispherical shape or a generally cylindrical shape. 2 〇 And form the back pressure chamber 2 i, whose air two VI air is important because of the need enough, enough air pressure) to move the elastic diaphragm 36. The transparent flange 30, the washer stop flange 32, and the ring are connected to the main body 26 with a nut 25, and the surface of the nut 25 is coupled. The washer stop is located on the lower edge of the lens. Flange 3 2 and page 8 200426048, description of the invention (4) The groove 34 is suitable for positioning around the circumference of the device 20 and receiving the seal 塾 3 8〇 Where? In the embodiment, the seal 塾 38 can guide f. 2 port to make the positive charge move to the backup circuit above the pc circuit board:. That is, it can be moved from the positive terminal of the battery to the positive LED terminal through the channel 90 on the main casing, or the board is moved to the positive LED terminal. 』I ύ» Move body. = Main body portion 26 of the pressure monitoring device 20. The main is a general cylindrical structure, suitable for accommodating printing ί) 2 9 and at least one battery 2 7. As shown in Figure 4, the main: Valley two batteries. It is used in this case that the main double body is suitable for the length and the monitoring device 20: electricity. It can be understood that the embodiment shown in the main casing 26 +, == size and number are compatible. In his alternative embodiment, the invention is completed. Those skilled in the art can understand that in other embodiments made of metal or plastic, in order to form a circuit, the main body is made of plastic, and a lead wire is provided. On the inner surface of the main body part, it is necessary to form a boat part on the outside of the main housing 26 and is suitable for matching with the screw bit 1 of the nut 25. It is located on the housing 26 and can be obtained from Locitite Amei ^ ea , ^ F adhesive to lock the thread. Suitable gum dry agent, sealant back. Hl; = damage to dirt and debris 1 and prevent the internal parts of the device from being exposed to 2 Θ upper part, for accommodating the ridge, the mounting ridge piece 4 2 is located at the main body part, and the P brush circuit (PC) board 4 4. The main body also includes 200426048-_ V. Description of the invention (5) Includes a non-conductive gasket suitable for accommodating a non-conductive gasket, the gasket 5 0 has an opening 5 -shaped groove 4 8. Center of circle 5 0. As shown in Figs. 4 and 5, the opening 52 is actually placed on the pad and the elastic membrane washer in the extended position. The shape of one surface 54 is the same as that of the elastic membrane. By using the gasket to prevent the excessive expansion of the elastic diaphragm 36 from the same contour, the surface of the collar may be damaged or deformed. The gasket = so the elastic membrane 3 6 hardly = stops the battery 2 7 continuously contacting the elastic membrane = the two surfaces 56 are actually flat, ensuring that the elastic membrane 36 and the electrical: seal 36 are. In addition, the washer 50. In order to compensate for the difference between the batteries; a uniform gap is formed between the extremes or a gasket is placed on the second battery surface. A biasing member (not shown) such as a spring 5 can be joined to the second surface 5 6. Washer washer. The one-piece and one-piece biasing member is not limited to a spring or a main housing and also includes a groove 58 provided in the housing 5 8 for receiving a non-inner cavity of a parking lot. Groove these materials. The material of the concave two is plastic or nylon, but is not limited to the body 2: the position of m corresponds to the first battery-inserted into the main case-electricity, also? 7 if. J 骖 material insulates the main case part, and prevents Optional implementation of the main: a short circuit is formed. In the present invention, one < alternative thus does not need to be wrapped around: :: = 7 with insulating material, 1-~ two t is provided with a groove 5 8. In In another example of the present invention, a single battery pack can be used with a single 3, _ battery set. As a result, the first main case 2 β also has at least two passages 6 provided around the main case 26. As shown in FIGS. 3 and 4, the main housing 26 has two channels 46. Page 10 200426048 V. Description of the invention (6) When the nut 2 5 flows into the back pressure chamber 2 2 6 and pulls the lens main housing 2 side, And with 60, the main casing 2 can be arbitrarily proved that the air from the main casing lower casing 2 8 outer shell 7 4 and the gasket lower casing 28 of the tire valve stem from the α lower casing 2 cylindrical body portion. The screws on the wall 6 6 are matched. The round stomach of the lower corpus callosum 2 β & B b inner cavity including the rod opening and the rod rod 4, 日 付, rod open). In addition, one in Carcass 2 8 to prevent air from looping. There is no tightening 1. But 2 4 and dense 6 are placed on the lower shell with pressure 6 and the lower shell leaks on the surface or other dense space to form the dense main shell 2 8 includes The solid cylindrical body pattern is suitable for the upper part of the upper part 6 and the lower case 70. When the mouthpiece 7 is attached in the dense inner cavity and in the lower case, the channel 46 allows air to pass from the main, and when the nut 2 5 is tightened At this time, the sealing gasket 3 8 seals the thread matching force and / or the heat-active adhesive provided on the outer surface of the main housing 2 body 2 8 through the thread 60. The body 28 is tightly connected together. The lower case 2 includes a groove 72. The groove 72 is suitable for sealing. The gasket 74 is sealed in the main shell, thereby preventing air leakage from the device 2 06. The round upper portion 6 4 has The inner cavity of the part has a threaded inner wall 6 'standard 5/1 6 "thread-every number of tires on the valve stem used such 5 includes at least one channel 6 8 2 8 inner cavity communication. Round upper tire tire pressure monitoring device 2 0 0 is suitable for engaging and pressing the tire needle seal 7 6 such as a gasket or gasket to leak when the device 2 0 is connected to the wheel, but is not limited to the above-mentioned dense shell 2 6 which is facing the main shell Internal appearance of body tract 4 6 0 6. Thread. Adhesive protection thereby prevents the inclusion of the housing 6 and the connection of the wheel with the usual 6. The inner inch 3 2 standard thread ’which enables the main 6 5 to also be attached to the tire valve (not shown can be sealed or 塾 when the tire valve stem is placed) 200426048

In addition, as shown in FIGS. 2 and 4, there are 9 β L pits 7 8 in the lower bismuth. The hole 7 is formed by a wall of at least one upper and lower casing 28 which is perpendicular to the lower hump, and is actually perpendicular to the inner cavity of the lower body. Screw 7 9 *: Remove the glenoid between the tires. In the implementation shown two = assembled = made, ... damage to the threads on the tire bar. ;: 了 2 high-strength ceramics or: belong to νπ materials such as plastic, catfish, but is not limited to these materials. 3…, FIG. 4 ′ lever opening fork 7 〇 is provided in the lower case 2

The dry opening 70 also includes at least one channel 8 2 in a cylindrical circle. Fig. 4 The cup opening of the fixed body 8 2 is another piece. Channel 8 2 is not shaped around the fork 7. By providing the annular duct 8 4, the manufacturing of the passage 6 is simplified; The pressure chamber located in the upper circular part of the lower case 28 is passed through the lower two carvings. In an alternative embodiment, the lower case communicates with the main, upper hole of the lower circular part. 2 discloses an embodiment of the present invention with plate 29. Take the circuit of the board ^ 8 ^ ", the duration and frequency of ED flash pond. Plate 2 9

The main and two main housings 2 6 are connected to the positive terminal of the battery. The lower U. Positive; 1, s moves the positive charge from the battery to the old negative 2 9 to move through the hole 9 located around the% board 2 9 to perform the middle setting of 9;: = LED positive pole located on the upper part of the PC board 3 3. Holes, with #values, H ^ electrical materials, or conductive materials in holes 90, moved to the upper part of the PC board. 、 Choose electricity through conductive gasket

Page 12 200426048

[The plate 29 also includes a channel 92 that uses a lightning guide 9 2 to form a negative charge from the electric material to form a line. Conduct to LED negative terminal 3 5. Pass / conduct to the upper part of the plate, and hold it in the chamber and act as a catheter in the lower part of the 9 to make the back repeatedly. This space constitutes the composition of the back pressure chamber;:? The space formed between 6 is communicated as shown in Figs. 6A and 6B. The pc handle becomes seven. The wafer 2 is located in the contact area 31. The 9 retreat includes the flash-canned photo 2 installed on the PC board (not shown). C Chip Control ™ In the range of 0.5 Hz, the frequency of the flash can be between 18 and 2 seconds. Those who are accustomed to this technical field can reasonably say that, Lei: Bei Yinjian is a frequency outside the frequency range shown by 1. The b-chip frequency is suitable for LED light of 0.125 seconds. However,;: = is set to emit LEDs for a longer or shorter duration. 22: I understand that those in the art can understand that T is the same as the circuit and electronic equipment: Set 5 = signals with different technologies, such as sound signals, radio, wide-band (IR) signals, or a combination of these signals. Ding Yang &#; Infrared In these embodiments where RF or IR signals are transmitted, $,: 'are some of these signals. A remote receiver is set on the chain to notify the driver that the car or key is low. The tire pressure drop of Uzbek specific tires is the annular ridges of the housing 26. The elastic diaphragm 3 6 is welded to the elastic diaphragm 36. The beryllium steel is understandable. The elastic diaphragm 3 6 is made of, but it is not limited to these metals. Referring to FIG. 4, the PC board 2 9 sets the tire tire pressure monitoring along the main 4 2. Device 2 0 on PC board 29. In the embodiment shown, it is made of gold. However, those skilled in the art can be made of a variety of metals such as brass or other metals.

material. In addition, the elastic shuttle is made of, but is not limited to, the conductive shuttle i6, which can be produced from other conductive materials such as the thick rubber film I of the conductive rubber diaphragm 36. An ordinary 形 -shaped piece with an upper folding edge made of 1/2 hard beryllium copper alloy ': 0.00 0 1 ″. The elastic diaphragm 36 is included from the surface of the elastic diaphragm 2 as shown in FIG. 4. Diaphragm 3 6 also includes a height that is actually equal to the non-concave nipple-shaped portion 90. The nipple 90 is at the-position, the depth of the elastic opening 5 2 is shown. In the second position, the dorsal cervix 36 is in the entire position. Concave shape, as shown in Fig. 4. The nipple-shaped part 9 〇 contact 7 milk pressure acts on the elastic diaphragm 36, so that the elastic diaphragm 36 from the first -J, as shown in Figure 5. Straight on the elastic diaphragm 36 (2) The pressure difference when moving to the second position depends on the comparison. Compared with a larger diaphragm, or a thinner diaphragm, the more flexible diaphragm is more difficult to move. The diaphragm is more difficult to move than the 3/4 @ 、 入 s + „sex diaphragm. 1/2 of the hard can be easily moved through the diaphragm of the tempered material. 2. The materials are subjected to heat treatment. According to the embodiment of the present invention, ^ $ again. , The elastic diaphragm can contact the battery. Two = to "magic pressure difference of the vehicle's tire tire pressure. When the car or other moderate membrane pressure is used to form a pressure difference of about 10ps, the bomb has a higher wheel II! Wide), so that the device can detect very small religious differences. .Yu film advance order, so 200426048 Five invention descriptions (10) Figure 4 also shows the elastic film piece 9 3. The hard piece 9 3 is a free floating piece with optional hard changes arranged on the 2 surface When the main pressure i and the sheet 36 are pressed in the entire shape, the hard sheet # 93: stop; The elastic diaphragm 'is thus destroyed = the medium pressure will be provided with a hard piece 9 3 towards the PC board, so when the main pressure is 22: Yes, due to the pressure in the proper position, the elastic diaphragm can be maintained. The pressure is greater than the back pressure chamber. The present invention also relates to the use of tires]: =. Normally ΐ ΐ 2 0 screwed on the valve stem and calibrated II KI: When the value is below the threshold, * an alarm letter: drop down; drop to calibration And inflates the tire. Then remove the user from the device and continue to monitor the wheel Tire pressure .., again connected to the tire valve stem. The present invention is superior to the prior art tire pressure measuring device. It is small and independent; J = equipment =; Wheel: Tire balance brings adverse effects. In addition to the embodiments of the present invention: There are no other moving parts outside the moving part. Since there are almost no moving parts, the centrifugal force generated by tire rotation or similar movements will not affect the work of one case. In addition, the existing inexact method is Tire, see if the tire pressure " seems to decrease ", on the contrary ^ the device of the present invention is more accurate, its accuracy is that the device works when the tire pressure changes a predetermined pressure difference. The device then indicates in some ways, for example, by a flashing light or sound or signal, that the tire pressure has decreased.

200426048 V. Description of the invention (11) 2: Envy :: f can be suitable for various tire applications. That is, existing tire pressures (such as 3 2 psi or 100 ps) are used to measure deviations from these pre-calibrated tire pressure. The device is based on the inside of the tire at the start time. wheel team trample soiled cat >. with, Shang wheel month population on port anti changed a deviation from the initial tire = deviation amount, the apparatus acts by ... to be used in a variety of tire applications "early a Yu opposed apparatus 2 〇 For example, when the recommended tire pressure of the front tires is different, a set of devices can be used on all tires. It is necessary to pre-^^. It is calibrated when it is connected to the tires at the beginning of the year, so it is not necessary to =: Therefore, when on the tire valve stem, 'need ^ ^ to enter the device ^ ^ early and too much when the rolling mill flows into the back pressure chamber, and the channel 46 is closed due to the sealing of the gasket, because =: can flow in or out Back pressure chamber 2 1. However, when the device 20 is the most: * 疋 # Tire valve rod 2 2, because the seal 塾 is not fixed to the main casing 2, the air in the tire flows into the main pressure chamber 9 4 through the passage 4 6 Two J let the air flow into the back pressure chamber 21, which has the same : Therefore, the device 20 is now calibrated, and the nut 2 5 can be tightened and the back pressure chamber 2 1 can be sealed. Shibei Er ^ Just OK 'The device continuously monitors the pressure drop in the tire. This: [t 、 主The tire pressure in the pressure chamber and the tire is the same. Therefore, the tire pressure in the tire is the same on the surface. However, the passage of time ㈣ is low. Therefore, the air pressure in the main pressure chamber decreases accordingly.

200426048 V. Description of Invention (12). In this case, the air pressure in the name K η 21 is higher than the main pressure. Therefore, the air pressure in the back pressure chamber is affected by T, the diaphragm = 94 frequency, infrared light, or a combination thereof. q 万 法 In addition, once the device 20 has been calibrated, it can be determined so as to ensure that the accompanying mine and ice #dry 々 + 月 remove the device 2 η to keep the battery and circuit in working condition. Also ^ 2 0 When the device is ready, the air pressure in the back pressure chamber will be equal to the tire :, the calibration valve is removed from the tire valve stem, A: σ ;; I. Once the follower wheel, the pressure in the back pressure chamber and the main pressure chamber is equal to atmospheric pressure. The pancreas will contact the battery due to the alarm and make sure that the battery and device are working properly. The 'relief device 20' can be divided into two chambers, the main pressure chamber 94 and the back pressure: the elastic diaphragm 36 is separated. Calibrate the device H-men: Two air pressures are equal. After a period of time [round :: i == hole i drops. When the pressure in the back pressure chamber is greater than the main signal circuit. It doesn't matter if the alarm is turned on. Fig. 7 is a cross-sectional view of another embodiment of the present invention. Made of transparent material such as plastic. The shiny LED is mounted on a miniature m〇1 by)! 〇 2 ,,, PCB ^ ^ 2 〇 8 ^ ^ shout body on the contacts. These contacts will connect the circuit fish on the PCB to the metal on the sin. " The positive electrode of the battery PCB has contacts for connecting the negative electrode of the battery 108 and a conductive gasket

Page 17 200426048 V. Description of the invention (13) ---- 1 0 5 Contact the PCB here. The upper metal shell 103 is precisely fitted with the transparent top 101, and is fixed by gluing so as to form an air-tight fit. The lens also holds the PCB. The role of the plastic insulating sleeve 1 〇9 is " as the insulator of the positive electrode of the upper battery 108, and once the upper metal 7ξ case and the lower 1 1 10 are screwed together, the plastic insulating sleeve 1 〇9 will also have 2 stops. The plate 107, the non-conductive sealing pad 106, the diaphragm 104, and the conductive sealing pad 105 are placed at their corresponding positions. The insulation sleeve is also used to transmit the necessary pressure to the package. The diaphragm i 04 is made of an elastic conductive material, and by changing the elasticity of the diaphragm 104, the sensitivity required to trigger a low-voltage alarm flash can be obtained. The conductive gasket 丄 05 is a standard conductive gasket available from stock. The stopper 1 07 is a straight metal plate with a slight groove in the middle. It & strengthens the contact with the diaphragm 1 04, and it also has two small holes through it to allow the tire pressure to act on the diaphragm.丄 〇4. The battery 丄 〇8 is in stock: the standard alkaline electricity should also be. The lower part 丄 丄 〇 is screwed on the upper metal _ 103 and the tire valve stem opening 1 1 2 is placed in the valley. The lower part ^ 10, the thread pattern is tightened on the inner side of the lower part to match the tire valve stem, and = 10 has a rubber washer 111 to form a suitable seal with the tire valve stem. The lower part 110 is made of metal and is made into different colors for front and rear tires by anodizing. Since some (very small) vehicles use metal poles that are not insulated from the ground, the lower part 1 1 0 can be made of non-conductive materials such as plastic, but then additional wires need to be inserted from the bottom of the lower battery 108 to connect with The upper metal case 10 3 is connected. The upper metal case and the lower part have a horseshoe shape mounted therebetween for transmission

200426048 V. Description of the invention (14) Separator (not shown) 〇 Mingtian, ^ First use the spacer in the original position: In the initial installation, you should tighten the cap, the first door, and force the tire into the valve The lever opener " 2 opens the valve and should be removed from the spacer, and the back chamber 1 1 3 calendar. Then, after the nut has arrived on the metal shell on the field tight t 1 1 〇 Permanent connection one, put on the adhesive with the nut and the lower tire tyre, and use the pressure to form a suitable screw J into the back chamber. However, it is accustomed to this. The detailed description of the four embodiments describes various aspects of the scope and spirit of the present invention. However, it can be used to explain the present invention, modifications and changes without departing from the description of the present invention. Therefore, it is' above. x, only examples and not for limiting the present invention

Page 19 200426048 Brief Description of Drawings Figure 1 is a perspective view of a tire pressure monitoring device of the present invention mounted on a tire; Figures 2A and 2B are perspective views of a tire pressure monitoring device; Figure 3 is a tire tire shown in Figures 2A and 2B An exploded view of the pressure monitoring device; FIG. 4 is a cross-sectional view of the tire tire pressure monitoring device shown in FIG. 3; FIG. 5 is a cross-sectional view of the tire tire pressure monitoring device with the elastic diaphragm in contact with the battery; A plan view of a printed circuit board in a tire pressure monitoring device of the invention, FIG. 6B is a bottom view of the printed circuit board shown in FIG. 6A; FIG. 7 is a cross-sectional view of another embodiment of the tire pressure monitoring device of the invention. Comparison of the number of components and names in the picture 2 0, tire pressure monitoring device 2 1, back pressure chamber 2 2, tire valve stem 2 4, lens 2 5, nut 2 6, main body 2 7, battery 2 8, lower body 2 9. Printed circuit board (PC board) V 1, air volume P 1, pressure

Page 20 200426048 Brief description of the drawing 3 0, threaded upper flange 3 1, PC board is located in the contact area 3 2, washer stop flange 3 3, LED positive terminal on the PC board 3 4, ring groove 3 6 Elastic diaphragm 3 8, Seal 4 0, Thread 4 2, Ring-shaped ridge piece 4 4, Printed circuit board (PC board) 4 6, Channel 4 8, Ring groove 5 0, Non-conductive gasket 5 2, Washer Opening 5 4, washer surface 56, second washer surface 5 8, groove 60, thread 6 4, circular upper part 65 of the upper case, circular upper part 6 of the lower case 6, threaded inner wall 6 8, Channel 7 0, rod opening fork 7 2, groove

Page 21 200426048 Brief description of the drawings 7 4. Seals 7 6. Seals 7 8. Threaded holes 7. 9. Screws 8. 0. Cylindrical section 8. 2. Passage 8. 4. Ring duct 8. 8. Lower part of the PC board 9. 0, holes around PC board 9 0, channel 9 on PC circuit board, nipple-shaped portion 9 2, channel 9 3, hard piece 9 4, main pressure chamber 1 0 1, top 1 0 2, micro printed circuit board (PCB) 103, upper metal case 104, diaphragm 1 0 5, conductive gasket 106, non-conductive gasket 1 0 7, stopper 1 0 8, battery 109, plastic insulation sleeve 1 1 0 , Metal case and lower part

Page 22 200426048

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Claims (1)

200426048 VI. Application scope of patent '-1. A tire tire pressure monitoring device for monitoring tire tire testing device includes: 4 a casing connected to a tire valve; the casing has a first pressure chamber, a second pressure chamber and an elastic membrane Wherein the first and second pressure chambers are separated by an elastic diaphragm, and another signal transmitting device is located in the housing, wherein when the pressure in the first f chamber is higher than the pressure in the second pressure chamber , The K issuing device sends out an alarm signal. Qi 2. The tire pressure monitoring device according to item 1 of the patent scope, the casing further comprises: 〃 τ lens, a main casing and a lower casing, wherein the lens is connected to the first end of the body, The lower case is connected to two ends of the main case.罘 —3. The tire pressure monitoring device according to item 2 of the patent scope, further comprising: a nut for connecting the lens to the main casing. 4. The tire tire pressure monitoring device according to item 3 of the patent scope, further including the electric potential between the lens and the main casing, and the degree of soil j 5. The tire pressure monitoring device according to the item, wherein the device further includes at least one battery. 6 The tire pressure monitoring device according to item 1 of the patent scope, wherein the elastic diaphragm is a conductive substance. / The tire pressure monitoring device according to item 6 of the patent scope also includes that the conductive substance is a conductive metal or a conductive rubber. ,dagger 200426048, patent application range 8 The tire pressure monitoring device according to item 1 of the patent, the "number issuing device is connected to a printed circuit board." The tire pressure monitoring device according to item 1 of the patent, The signal transmitting device is one of the following devices: light shoots, LEDs, speakers, radio frequency (IR) transmitters, and infrared (IR) transmitters. A tire tire pressure monitoring device measuring device includes: a lens , The main casing and the lower casing are used for measuring the tire pressure of the tire, wherein 2 of the lens is connected to the first main casing of the main casing; f the downwind body and the lens at least partially form a back pressure chamber, · The main casing forms the main pressure chamber 'interior installation device and elastic diaphragm; L will issue the elastic diaphragm to fit the back pressure chamber and the casing under the main pressure to the tire valve. $, And the: patent scope The tire tire pressure monitoring device according to item 10 is a nut that connects the lens to the main casing. Also includes: The tire tire according to item 10 of the patent scope is provided between the lens and the main casing 3 electricity between bodies = as patent scope 10 of the tire pressure, the electrical power is at least a ', also. J set clothing, such as item 10 wherein the scope of the patent show a tire counter' wherein 200426048 VI. The signal transmitting device described in the scope of the patent application is one of the following devices: light emission> polar body (LED), speaker, radio frequency (transmitter and infrared (IR) transmitter.% Work 5, such as patent scope The tire tire pressure monitoring device according to item 10, wherein the elastic diaphragm is a conductive substance. 16. The tire tire pressure monitoring device according to item 15 of the patent scope, wherein the conductive substance is a conductive metal. Or conductive rubber. 1 7. A tire pressure monitoring device for monitoring tire pressure, the monitoring device comprising: a housing adapted to engage a tire valve; and the housing includes a device for detecting a differential pressure and a Device for said differential pressure signal. 8. A method for monitoring tire pressure of a tire, said method comprising: providing a tire pressure monitoring device according to item 1 of the patent scope; connecting said tire pressure monitoring device to a tire On the valve; calibrating the tire pressure monitoring device; monitoring a pressure difference between the tire pressure monitoring device and the tire pressure; and when the pressure difference exceeds a predetermined An alarm signal is issued when there is a pressure difference: 19. The method as described in item 18 of the patent scope, wherein the calibration step further comprises flowing air from the tire into the back pressure cavity of the tire pressure monitoring device, and The method of sealing the back pressure is as described in item 19 of the patent scope, wherein η $ f is the pressure of the back pressure chamber and the differential pressure of the air pressure of the tire. 200426048 VI. Scope of patent application-21-The method described in item 20 of the patent scope, wherein the alarm is rampant. It can be one of the following signals: light, sound, radio frequency (R F) wave, and infrared (I R) light. The method according to item 18 of the patent scope further comprises: periodically disassembling the tire pressure monitoring device to ensure normal operation. The method according to item 18 of the patent scope, further comprising: removing the tire monitoring device from the tire valve; increasing the tire pressure; and monitoring the tire pressure again The device is connected to the tire valve 2 4. A valve cap of a tire tire pressure monitoring device, which has an internal air pressure supplied through a common tire valve, the valve cap includes: a transparent upper portion; a light emitting diode (LED), connected On the printed circuit board; the upper case, which contains the LED and the printed circuit board; an elastic diaphragm; a back pressure chamber, wherein the back pressure chamber is a space between the transparent upper part and the diaphragm; at least one battery is located in the upper case; And the lower casing is suitable for fitting the tire valve assembly through internal thread tightening. The valve cap according to item 24 of the patent scope, wherein the circuit board further comprises a flash circuit. Page 27