TWI529075B - Replaceable battery tire pressure sensor - Google Patents

Description

Replaceable battery tire pressure sensor

The invention relates to a tire pressure sensor, in particular to a tire pressure sensor with a replaceable battery structure.

The driving safety of the driver when driving on the road is the primary consideration, and the tire pressure on the tire has a very serious impact on the vehicle condition, which has a crucial influence on driving safety. Tires need to have normal tire pressure to make the vehicle run smoothly. Tire pressures that are too high or too low may cause puncture or broken tires, which seriously affect the stability of the vehicle and threaten the safety of life and property of passers-by. The importance of driving safety is self-evident. However, the conventional method of measuring the tire pressure needs to stop the vehicle before it can be carried out, and it is impossible to know the instantaneous change of the tire pressure of the vehicle during traveling. If the tire is abnormal during driving, the driver cannot immediately know and strain.

In order to overcome this deficiency, the relevant manufacturers have developed various tire pressure detecting devices mounted on the tires, so that the driver can know the change of the tire pressure at any time. For example, the "wireless tire pressure detector" of the Republic of China new patent No. M335410, the tire pressure detector is a tire-type tire pressure sensor having a sensor unit and a combination with the sensor unit a gas sensor unit, the sensor unit includes a casing, a circuit board disposed in the casing, and a gasket inserted in the casing, wherein the casing has an air inlet and a a groove communicating with the air inlet, the gasket being located adjacent to the air inlet and having a connection portion electrically connected to the circuit board. The air nozzle unit includes a tube member that can serve as an antenna, at least one set of washers disposed on the tube member, a cap that is screwed to one end of the tube member, and at least one nut that is screwed to the other end of the tube member. Since the nut locking method is more difficult to loosen than the conventional screw locking method, the stability of the sensor unit and the air nozzle unit is improved.

Another example is the Republic of China new patent No. M405977 "Tire pressure sensor and nozzle assembly", which consists of a nozzle, a tire pressure sensor and a bolt that locks the nozzle and the tire pressure sensor. The nozzle Having a connecting portion, the connecting portion has an outer adjusting surface, the tire pressure sensor has a casing, the casing has a connecting groove connecting the connecting portion of the air nozzle, and the connecting groove has an inside and a outside Adjusting the inner adjustment surface with complementary surface shapes, by the arrangement of the outer adjustment surface and the inner adjustment surface, the connection portion of the air nozzle can roll in a specific direction with respect to the connection groove, so that the tire pressure sensor and the gas The mouth cannot be arbitrarily rotated when the bolt is locked, and the difficulty of installing the tire pressure detector on the wheel frame is reduced.

The above-mentioned No. M335410 and M405977 are all tire-type tire pressure sensors, which are directly installed in a tire to detect the type of tire pressure. Since the tire and the ground friction generate high temperature when the vehicle is running, the tire pressure sensor needs high airtightness in the harsh environment of high temperature and high pressure in the tire to prevent dust or moisture from entering the interior of the casing. The operation of the unit. Therefore, the tire-type tire pressure sensor assembles the housing with the sensing unit and the battery and then seals the housing to ensure its airtightness. This means that the above-mentioned tire pressure sensors of No. M335410 and M405977 cannot be used continuously because the battery power is exhausted, and it is necessary to re-purchase the new tire pressure feeling even if the sensing unit itself is not malfunctioning or damaged. The detector is undoubtedly an expense for the driver, and it also creates unnecessary waste.

The object of the present invention is to solve the problem that the conventional tire-type tire pressure sensor cannot be replaced when the power is exhausted, and must be discarded.

In order to achieve the above object, the present invention provides a tire pressure sensor of a replaceable battery, which can be mounted on a wheel frame having an assembled through hole, the tire pressure sensor of the replaceable battery includes a sensor body, and a An air inlet nozzle connected to the sensor body and a set of air nozzle fixing members connected to the sensor body and the air inlet nozzle. The sensor body includes a tire pressure sensing module disposed in the body of the sensor for detecting a tire pressure to generate a corresponding tire pressure information and outputting an information transmission signal, and a supply of power to the tire pressure is provided. a battery receiving portion of the battery of the sensing module, a cover screwed to the battery receiving portion to restrict the battery from being detached from the battery receiving portion, and a nozzle assembly hole through which the nozzle fixing member is disposed The tire pressure sensing module is disposed apart from the battery placement portion to prevent gas from entering the tire pressure sensing module through the battery placement portion. The air inlet nozzle includes a connecting portion that is inserted into the air nozzle assembly hole, and an air inlet that connects the connecting portion and penetrates the assembled through hole to extend in an out-of-frame direction for the user to connect the input gas. segment.

In one embodiment, the tire pressure sensing module includes a sensory sensing module having a sensing area, and the sensor body further has a pair of air inlet portions that should be opened by the sensing area and a a gasket between the inlet portion and the sensing region.

In one embodiment, the tire pressure sensing module has at least one pair of firmware update terminals disposed in a battery placement portion.

In an embodiment, the connecting portion further has an assembly hole that is formed to be assembled with the air nozzle fixing hole toward the air nozzle assembly hole, and the assembly through hole that engages the wheel frame to receive the air inlet. The mouth is fixed to the positioning groove on the wheel frame.

In one embodiment, the sensor body further has an electromagnetic wave transmitting component electrically connected to the tire pressure sensing module to output the information transmission signal.

In one embodiment, the electromagnetic wave transmitting element has a pair of perforations that are open to the nozzle assembly opening for the nozzle holder to pass through.

In one embodiment, the sensor body includes a sealing ring disposed between the battery receiving portion and the cover.

In one embodiment, the sensor body has a first housing having a receiving slot for inserting the tire pressure sensing module, and a first housing is tightly closed to close the receiving slot. The second housing.

In one embodiment, the sensor body has a plurality of support blocks disposed on a surface facing the wheel frame and abutting the connecting portion of the wheel frame.

The battery body of the present invention is provided with a battery receiving portion for accommodating at least one battery, and a detachable cover body screwed to the battery receiving portion, so that the sensor body is exhausted It is only necessary to replace the new battery to continue to use, without the need to replace the new tire pressure sensor, in addition to significantly reducing the driver's desire to continue using the tire pressure sensor, can also reduce waste. On the other hand, the outer side of the battery receiving portion is further provided with a sealing ring that is clamped between the cover body and the first housing when the cover body is screwed with the battery receiving portion, and the sealing ring can be Filling the gap between the cover and the battery placement portion improves the airtightness of the battery placement portion to prevent dust or moisture from entering the sensor body.

1‧‧‧ wheel frame

11‧‧‧Assemble through hole

12‧‧‧Fracture

13‧‧‧ Connection section

2‧‧‧Sensor body

21‧‧‧ first housing

211‧‧‧ accommodating slots

212‧‧‧Transmission holes

213‧‧‧Transmission holes

214‧‧‧Support block

215‧‧ ‧Intake Department

216‧‧‧Air nozzle assembly hole

22‧‧‧ second housing

23‧‧‧ tire pressure sensing module

231‧‧‧ circuit board

232‧‧‧Sense Module

233‧‧‧Sensing area

234‧‧‧ Firmware update terminal

24‧‧‧Battery Placement Department

241‧‧‧External threaded wall

242‧‧‧ battery slot

243‧‧‧First conductor

244‧‧‧second conductor

245‧‧‧Piece conductor

246‧‧‧Connected end

247‧‧‧First lead pin

248‧‧‧Second guide pin

249‧‧‧ fixed end

25‧‧‧Battery

26‧‧‧ Cover

27‧‧‧Seal ring

28‧‧‧Washers

29‧‧‧Electromagnetic wave transmission element

291‧‧‧Perforation

292‧‧‧Transfer pins

3‧‧‧Intake nozzle

31‧‧‧ Connection section

311‧‧‧Assembled holes

312‧‧‧ positioning slot

313‧‧‧Exhaust through hole

32‧‧‧Air intake section

4‧‧‧ nozzle assembly

FIG. 1 is a schematic view showing the appearance of a tire pressure sensor of a replaceable battery according to the present invention.

2 is a structural exploded view of a tire pressure sensor of the replaceable battery of the present invention.

3 is a cross-sectional view of an intake nozzle of a tire pressure sensor of the replaceable battery of the present invention.

4 is a cross-sectional view of the sensor body of the tire pressure sensor of the replaceable battery of the present invention.

FIG. 5 is a schematic view showing the use state of the battery pressure sensor of the present invention.

The detailed description and technical contents of the present invention will now be described as follows: Please refer to FIG. 1 , FIG. 2 and FIG. 5 , which are respectively a schematic view of the appearance, an exploded view of the structure and a schematic view of the use state. The present invention is a tire pressure sensor of a replaceable battery, which can be installed on On a wheel frame 1 of a tire (not shown), each side of the wheel frame 1 has a crease section 12 that is fitted to a bead of the tire (not shown), and each of the folds is connected. The connecting portion 13 of the segment 12 and an assembled through hole 11 disposed between the crease portion 12 and the connecting portion 13. The tire pressure sensor of the replaceable battery comprises: a sensor body 2, an air inlet nozzle 3 connected to the sensor body 2, and a connecting the sensor body 2 and the air inlet gas The nozzle holder 4 of the mouth 3. The sensor body 2 includes a tire pressure sensing module 23 disposed inside the sensor body 2, and a battery receiving portion 24 and a nozzle assembly hole respectively disposed on the outer surface of the sensor body 2 216, the tire pressure sensing module 23 is spaced apart from the battery placement portion 24 to prevent gas from entering the tire pressure sensing module 23 via the battery placement portion 24. The tire pressure sensing module 23 includes a circuit board 231 and a sensing module 232 disposed on the circuit board 231 and having a firmware to control the operation of the tire pressure sensing module 23. In addition, the sensing module 232 has a sensing area 233. The sensor body 2 also has a pair of air inlets 215 that should be opened by the sensing area 233, and a pair of air intake parts 215 and the sensing area. A washer 28 is disposed at a position of 233, and the washer 28 is held by the sensor body 2 and the tire pressure sensing module 23. When the gas in the tire enters the interior of the sensor body 2 through the air inlet portion 215, it is restricted by the gasket 28 and directly leads to the sensing region 233, so that the sensing module 232 can detect the tire. The tire temperature information is generated by data such as the tire temperature and the tire pressure, and the tire state information is transmitted to a monitoring device (not shown) by wireless transmission. The monitoring device can be installed in the vicinity of the driver's seat to facilitate the driver to view the place, and can be integrated with the vehicle factory to integrate the driving power. The brain is directly displayed on the dashboard of the vehicle, so that the driver can know the change of the tire pressure at any time.

The sensor body 2 is a single housing. In the preferred embodiment of the present invention, the sensor body 2 includes a first housing 21 and a card with the first housing 21. The second housing 22 is closed. The first housing 21 has an opening 211 facing the connecting section 13 to accommodate the tire pressure sensing module 23 (as shown in FIG. 3 and FIG. 4 ). The first housing 21 is engaged with the first housing 21 such that the receiving groove 211 in the first housing 21 forms a sealed space, so that the tire pressure sensing module 23 is restrained therein. In order to ensure that the accommodating groove 211 is completely sealed when the second housing 22 is engaged with the first housing 21, an adhesive (not shown) may be applied to the second housing 22 and the The gap between the first casings 21 to ensure that the dust or moisture generated by the tire during the rotational friction cannot enter the accommodating groove 211 affects the stability and service life of the tire pressure sensing module 23 . In the preferred embodiment of the present invention, the battery receiving portion 24 and the air nozzle assembly hole 216 are disposed on a surface of the first housing 21 opposite to the opening direction of the receiving groove 211.

Referring to FIG. 2 , the battery receiving portion 24 has an annular externally threaded wall 241 and a battery slot 242 surrounded by the externally threaded wall 241 and can accommodate at least one battery 25 , and the first housing At a position at the bottom of the battery slot 242, at least one hollow region (not shown) that communicates with the battery slot 242 and the receiving slot 211 is provided. In the embodiment, the battery 25 is a button type lithium battery, but it should not be limited thereto. The battery may also be a mercury battery, an alkaline battery, a zinc air battery or the like. At least one first conductor 243, a second conductor 244 and a tablet conductor 245 are disposed in the battery slot 242. The positive electrode and the negative electrode of the battery 25 respectively contact the tablet conductor 245 and the second conductor 244, and the tablet conductor 245 has at least one fixed end 249, and the fixed end 249 and the first conductor 243 The connection terminal 246 is connected. In the embodiment, the fixing end 249 is a hook groove, and the connecting end 246 is a hook that can engage with the groove. In addition, with reference to FIG. 4 , the first housing 21 further has a plurality of conductive holes 212 formed in the bottom of the battery slot 242 . The first conductor 243 and the second conductor 244 respectively have the same through the battery slot 242 . The conductive hole 212 is electrically connected to the first guiding pin 247 and the second guiding pin 248 of the tire pressure sensing module 23 . When installed, the negative electrode of the battery 25 faces the battery slot 242 and is placed therein, so that the negative electrode of the battery 25 contacts the second conductor 244 disposed at the bottom of the battery slot 242, and the tablet conductor 245 is disposed on the battery. On the positive pole of 25, with the fixed end 249 and the first guide The connection end 246 of the body 243 is connected to enable the battery 25 to be electrically connected to the first conductive pin 247 of the first conductor 243 and the second conductive pin 248 of the second conductor 244 to the tire pressure sensing. Module 23 (shown in Figure 4) is used to supply the power required to operate the tire pressure sensing module 23. Moreover, the sensor body 2 further has a pair of cover bodies 26 disposed on the battery receiving portion 24, the cover body 26 having a thread (not shown) inside and screwed to the external thread wall 241 to close the battery. The battery slot 242 of the placement portion 24 allows the battery 25 to be confined therein. In addition, in order to enhance the airtightness between the battery receiving portion 24 and the cover body 26, a sealing ring 27 may be additionally disposed outside the external thread wall 241, and the cover body 26 and the external thread wall 241 are screwed. In time, the sealing ring 27 is sandwiched between the cover body 26 and the first housing 21, and further prevents moisture from entering the battery slot 242 along the gap between the threaded wall 241 and the internal thread 261 for better sealing. effect.

In addition, the circuit board 231 of the tire pressure sensing module 23 further has at least one pair of firmware update terminals 234 which are disposed in the hollow area and are exposed at the bottom of the battery slot 242. The firmware update terminal 234 can be connected to an external part. An electronic device (not shown) is coupled to receive an updated firmware file. In more detail, the firmware stored in the sensing module 232 has been set with a preset condition, which is the most suitable tire temperature under normal conditions known as the model of the sensor body 2 installed. Information such as tire pressure (hereinafter referred to as safety range) may have different safety ranges between different models, so different models may have different preset conditions. When the user wants to use the invention from the old model to the new model, the tire pressure sensor is first disassembled from the old model, and the cover 26 and the battery 25 are removed, so that the user The firmware update terminal 234 is exposed through the hollow area at the bottom of the battery slot 242, and the external electronic device is inserted into the battery slot 242 to connect with the firmware update terminal 234 to establish a connection with the sensing module 232. After the firmware information is transmitted, the firmware of the corresponding old model stored in the sensing module 232 is updated to the firmware corresponding to the new model; then only the battery 25 and the cover 26 need to be assembled back to the firmware. The sensor body 2 is used and the invention can be installed on a new model. In addition, the external electronic device can be connected to the firmware update terminal 234 in a plurality of manners. In an embodiment, the external electronic device can directly contact the firmware update terminal 234 by using at least one probe (not shown). Alternatively, the manufacturer can design a jig (not shown) corresponding to the appearance of the battery receiving portion 24, and the jig is engaged with the battery receiving portion 24 to achieve a stable connection with the firmware updating terminal 234. purpose. However, the above two embodiments are for illustrative purposes only and are not intended to limit the manner in which the firmware update terminal 224 is connected to the external electronic device.

Referring to FIG. 1 and FIG. 3, the air inlet nozzle 3 is made of a metal material, has a connecting portion 31 corresponding to the nozzle assembly hole 216, and an air inlet portion connected to the connecting portion 31. 32. The connecting portion 31 has an assembly hole 311 opened toward the air nozzle assembly hole 216 , and surrounds the connecting portion 31 and is engaged with the assembly through hole 11 to fix the air inlet nozzle 3 to the wheel frame 1 . The upper positioning groove 312 and an air outlet hole 313 are disposed between the assembly hole 311 and the positioning groove 312. Moreover, the nozzle assembly hole 216 is provided on a surface of the first housing 21 opposite to the opening direction of the accommodating groove 211. When the assembly is assembled, the connecting portion 31 is inserted into the nozzle assembly hole 216 to make the two contact each other, and a nozzle holder 4 is inserted into the nozzle assembly hole 216 in the direction of the connecting portion 31, and is connected thereto. The assembly holes 311 of the segment 31 are assembled to allow the air inlet nozzle 3 to be firmly connected to the sensor body 2. In this embodiment, the air nozzle fixing member 4 is a metal-made screw, and the assembly hole 311 is provided with a thread corresponding to the screw, so that the air nozzle fixing member 4 and the assembly hole 311 are screwed. The manner of connection of the nozzle holder 4 and the assembly hole 311 is not limited to this embodiment. The air inlet section 32 extends through the assembly through hole 11 of the wheel frame 1 and protrudes outside the wheel frame 1 to receive an external gas output from an air pump (not shown) for passing gas through the gas The nozzle 3 flows out from the air outlet through hole 313 located inside the wheel frame 1 to perform an inflation operation.

As shown in FIG. 1 , the sensor body 2 further has an electromagnetic wave transmission component 29 made of a metal material, and the electromagnetic wave transmission component 29 is disposed outside the first housing 21 and connected to the air nozzle assembly hole 216 . A through hole 291 corresponding to the nozzle assembly hole 216 and a transmission pin 292 are provided. Referring to FIG. 4, the first housing 21 defines a transmission hole 213 (shown in FIG. 3) at a position corresponding to the bottom of the receiving slot 211 corresponding to the transmission pin 292, so that the transmission pin 292 can pass through the transmission pin 292. The transmission hole 213 extends into the receiving groove 211 and is connected to the circuit board 231 to electrically connect the electromagnetic wave transmitting component 29 to the tire pressure sensing module 23. In the preferred embodiment of the present invention, the electromagnetic wave transmitting member 29 is connected to the air nozzle assembling hole 216, and the air nozzle fixing member 4 penetrates the through hole 291 of the electromagnetic wave transmitting member 29 and the air nozzle assembling hole 216. The assembly hole 311 is screwed so that the electromagnetic wave transmitting member 29 is sandwiched between the nozzle holder 4 and the nozzle assembly hole 216 (as shown in FIG. 3). Since the air nozzle fixing member 4 and the air inlet nozzle 3 are both made of metal, the tire pressure sensing module 23 can be connected to the air inlet nozzle 3 by the electromagnetic wave transmitting member 29 and the air nozzle fixing member 4. An electrical connection is formed to transmit the tire state information output by the sensing module 232 to the monitoring device by using the air inlet nozzle 3 as a wireless transmission antenna. Due to the intake The intake section 32 of the gas nozzle 3 is exposed to the wheel frame 1, and there is less shielding on the wireless transmission path, so that a better transmission effect can be obtained. Moreover, a gap between the port of the transmission hole 213 and the transmission pin 292 can also be applied with an adhesive (not shown) to achieve a better sealing effect.

Please refer to FIG. 5 , which is a schematic diagram of the use state of the tire pressure sensor of the replaceable battery of the present invention. As shown in the figure, the present invention can be disposed on the wheel frame 1. The air inlet section 32 of the air inlet nozzle 3 passes through the assembly through hole 11 and the positioning groove 312 of the connecting section 31 is engaged with the positioning slot 312. In the wheel frame 1, the air inlet nozzle 31 is fixed to the wheel frame 1 without falling, and then the sensor body 2 is connected to the air inlet nozzle 3, and the air nozzle fixing member is attached. 4 The nozzle assembly hole 216 is bored to assemble the sensor body 2 and the air inlet nozzle 3. In addition, the surface of the first housing 21 facing the connecting portion 13 is further provided with at least one supporting block 214 extending toward the connecting portion 13 , and the sensor body 2 is abutted by the supporting block 214 The connecting section 13 has a buffering effect, so that the sensor body 2 is directly attached to the connecting section 13 to receive the strong vibration of the wheel frame 1 to accelerate the damage of the component.

In summary, the present invention is provided with a battery receiving portion for accommodating at least one battery on the body of the sensor, and a screwing portion with the battery receiving portion to limit the battery to the battery receiving portion. The cover body enables the sensor body to be replaced with a new battery when the power is exhausted, without having to purchase a new tire pressure detector, in addition to reducing the money spent by the driver using the tire pressure detector to avoid generation Unnecessary waste and reduce waste of resources. On the other hand, the outer side of the battery receiving portion is further provided with a sealing ring that is clamped between the cover body and the first housing when the cover body is screwed with the battery receiving portion, and the sealing ring can be Filling the gap between the cover and the battery placement portion improves the airtightness of the battery placement portion, and prevents dust or water from damaging the electronic components in the sensor body.

21‧‧‧ first housing

214‧‧‧Support block

215‧‧ ‧Intake Department

22‧‧‧ second housing

23‧‧‧ tire pressure sensing module

231‧‧‧ circuit board

232‧‧‧Sense Module

233‧‧‧Sensing area

234‧‧‧ Firmware update terminal

24‧‧‧Battery Placement Department

241‧‧‧External threaded wall

242‧‧‧ battery slot

243‧‧‧First conductor

244‧‧‧second conductor

245‧‧‧Piece conductor

246‧‧‧Connected end

247‧‧‧First lead pin

248‧‧‧Second guide pin

249‧‧‧ fixed end

25‧‧‧Battery

26‧‧‧ Cover

27‧‧‧Seal ring

28‧‧‧Washers

3‧‧‧Intake nozzle

32‧‧‧Air intake section

4‧‧‧ nozzle assembly

Claims (9)

A tire pressure sensor for a replaceable battery is mounted on a wheel frame, the wheel frame includes an assembled through hole, the tire pressure sensor of the replaceable battery includes: a sensor body, including a A tire pressure sensing module for detecting a tire pressure in the body of the sensor and outputting a corresponding tire state information, and a battery mounting portion for supplying power to the battery of the tire pressure sensing module, a screw Connected to the battery placement portion to limit the battery from the cover portion of the battery placement portion, and a nozzle assembly hole, the tire pressure sensing module is spaced apart from the battery placement portion to prevent gas from passing through the battery The inlet portion enters the tire pressure sensing module; an air inlet nozzle includes a connecting portion that is inserted into the air nozzle assembly hole, and a connecting the connecting portion and inserts the assembled through hole toward a frame The outer direction extends to the user to connect the intake section of the input gas; and a nozzle fixing member is disposed through the nozzle assembly hole to assemble the inlet nozzle and the nozzle assembly hole. The tire pressure sensor of the replaceable battery according to Item 1, wherein the tire pressure sensing module comprises a sensing module having a sensing area, and the sensor body has a pair of An intake portion opened in the sensing region and a gasket disposed between the inlet portion and the sensing region. The tire pressure sensor of the replaceable battery according to Item 1, wherein the tire pressure sensing module has at least one pair of firmware update terminals disposed in a battery placement portion. The tire pressure sensor of the replaceable battery according to Item 1, wherein the connecting section further has an assembly hole that is connected to the air nozzle fixing hole and assembled with the air nozzle fixing member, and a clamping The assembled through hole of the wheel frame is to fix the intake air nozzle to a positioning groove on the wheel frame. The tire pressure sensor of the replaceable battery according to Item 1, wherein the sensor body further has an electromagnetic wave transmitting element electrically connected to the tire pressure sensing module to output the tire state information. The tire pressure sensor of the replaceable battery according to claim 5, wherein the electromagnetic wave transmitting member has a pair of through holes that are opened by the nozzle assembly hole for the nozzle holder to pass through. The tire pressure sensor of the replaceable battery according to Item 1, wherein the sensor body comprises a sealing ring disposed between the battery receiving portion and the cover. The tire pressure sensor of the replaceable battery of claim 1, wherein the sensor body has a first housing having a receiving groove for inserting the tire pressure sensing module, and a first housing The first casing is in close contact with the first casing to close the second casing of the accommodating groove. The tire pressure sensor of the replaceable battery according to Item 1, wherein the sensor body has at least one support disposed on a surface facing the wheel frame and abutting the connecting portion of the wheel frame. Piece.