WO2017063316A1 - 胎压计 - Google Patents

胎压计 Download PDF

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Publication number
WO2017063316A1
WO2017063316A1 PCT/CN2016/071195 CN2016071195W WO2017063316A1 WO 2017063316 A1 WO2017063316 A1 WO 2017063316A1 CN 2016071195 W CN2016071195 W CN 2016071195W WO 2017063316 A1 WO2017063316 A1 WO 2017063316A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
pressure gauge
shaft seat
tire pressure
shaft
Prior art date
Application number
PCT/CN2016/071195
Other languages
English (en)
French (fr)
Inventor
李安培
苏治强
Original Assignee
铁将军汽车电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 铁将军汽车电子有限公司 filed Critical 铁将军汽车电子有限公司
Priority to EP16795216.7A priority Critical patent/EP3178675A1/en
Priority to US15/306,322 priority patent/US20170267038A1/en
Priority to KR1020167034850A priority patent/KR20170059919A/ko
Publication of WO2017063316A1 publication Critical patent/WO2017063316A1/zh

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L17/00Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02Signalling devices actuated by tyre pressure
    • B60C23/04Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0491Constructional details of means for attaching the control device
    • B60C23/0494Valve stem attachments positioned inside the tyre chamber
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/04Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs

Definitions

  • the present invention relates to a tire pressure monitoring device, and more particularly to a tire pressure gauge.
  • TPMS tire pressure monitoring system
  • a corresponding tire pressure monitoring sensor is mounted at the valve hole of each tire rim, and the system also includes a sensor housing, a nozzle rod, a seal, and a fastener.
  • a component such as a tire pressure monitoring element and a battery is housed in the sensor housing.
  • the tire pressure monitoring sensor In the state where the vehicle or the vehicle is stationary, the tire pressure monitoring sensor automatically monitors the tire pressure and temperature data, and abnormalities in the tire pressure and temperature, and alarms, thereby avoiding traffic accidents caused by tire failure, to ensure driving Safety.
  • the angle between the tire pressure monitoring sensor and the mouthpiece on the market is mostly unadjustable.
  • Such a tire pressure monitoring sensor has a limited application range and can only be mounted on a specific rim.
  • the angle of the valve stem relative to the sensor housing is variable (including at least 15° to 25°), and the structural characteristics of the rim are complex and diverse, therefore, the angle of the nozzle relative to the sensor
  • the fixed tire pressure monitoring sensor has the following limitations: In some cases, the bottom of the sensor housing will rub against and interfere with the bottom of the rim groove, so that the housing is subjected to a large external force or even the sensor cannot be installed.
  • the sensor housing can be designed to be in contact with the bottom of the rim groove for different rim designs.
  • the sensor housing receives sufficient support from the rim without excessive interference with the rim.
  • a tire pressure gauge includes a tire pressure gauge main body and a valve assembly pivotally coupled to the tire pressure gauge main body, wherein the tire pressure gauge main body includes a housing having an air intake hole on the upper side thereof, and is housed in the tire pressure gauge a PCB assembly for detecting the pressure of the gas entering the housing by the air inlet hole, thereby transmitting a pressure signal to the outside of the tire by an electrical signal, a battery for supplying power to the tire pressure gauge body, and a portion from the housing a metal connector extending from the body, the housing includes a front panel, a first shaft seat is disposed on an outer side of the front panel, and a first shaft hole is disposed on the first shaft seat, and the metal connector includes a first shaft seat corresponding to the second shaft seat of the first shaft hole, and the second shaft seat is provided with a first stud around the first shaft hole thereof, the first shaft seat and the second shaft The seat defines a swinging groove, and the valve assembly includes a swinging head provided with a second shaft hole,
  • the tire pressure gauge of the present invention has the following advantages:
  • the tire pressure gauge main body of the present invention is pivotally connected with the valve assembly, and thus the angle between the nozzle stem of the valve and the tire pressure gauge housing Adjustable for tires with different rims.
  • the second shaft seat and the first stud are metal parts, the connection between the tire pressure gauge housing and the valve is reliable and has good wear resistance.
  • the PCB assembly includes a circuit board having a top surface and a bottom surface, a pressure sensor, an antenna, and a control circuit, and the control circuit detects a pressure of a gas detected by the pressure sensor from the air inlet hole into the housing.
  • the signal is connected to the antenna and then emitted by the antenna.
  • the battery is disposed on a top surface of the circuit board, and the pressure sensor, the antenna and the control circuit are all disposed on a bottom surface of the circuit board.
  • the housing further includes a bottom plate connected to the front panel, a pair of side plates, a rear panel and a cover plate disposed on the bottom plate and connected to the front panel, the bottom plate being close to the rear panel
  • a boss is formed at the position, and the inner side wall of the boss and the front panel define a bayonet in which the circuit board is stuck.
  • the circuit board has a fixing hole at each of two corner ends thereof adjacent to the front panel, and the bottom is The plate is respectively provided with a second stud at a position corresponding to the two fixing holes, and the circuit board is mounted on the bottom plate by being connected to the second stud by a screw passing through the fixing hole.
  • one end of the second shaft seat is bent to form a folding arm, and the end of the folding arm extends laterally and away from the second shaft seat to form a metal gasket, and the metal gasket is in the same
  • Corresponding positions of the holes of the two studs are provided with through holes for sequentially connecting through the fixing holes of the circuit board and the through holes of the metal pads to the second studs by means of screws; one end of the antenna is disposed close to the fixing holes And the end of the antenna is in electrical contact with the metal spacer.
  • the battery is connected to the PCB assembly through a pair of battery sheets, the free ends of the pair of battery sheets are provided with through holes, and the through holes of the battery sheets extend to the two fixing holes respectively.
  • the two fixing holes coincide.
  • the air inlet hole is disposed on the bottom plate, the pressure sensor is disposed at a position corresponding to the air inlet hole, and a sealing is provided between the pressure sensor and the air inlet hole Pad, the gasket has an intake passage that communicates with the intake port and the sensitive element of the pressure sensor.
  • one end of the second shaft seat is bent to form a folding arm, and the folding arm is adjacent to an end of the second shaft seat and extends in a direction away from the second shaft seat to form a tray, and the tray is provided with the air inlet a venting hole communicating with the air inlet passage and surrounding the venting hole to form a receiving groove, the sealing gasket being disposed in the receiving groove.
  • One of the side plates is provided with a glue injection hole, and a gap is formed between the glue injection hole and the top surface and the bottom surface of the circuit board.
  • the glue injection hole is disposed on a side plate away from the first stud.
  • FIG. 1 is a perspective view of a tire pressure gauge of the present invention
  • FIG. 2 is a perspective view of another perspective view of the tire pressure gauge shown in FIG. 1;
  • FIG. 3 is an exploded view of the tire pressure gauge shown in FIG. 1;
  • FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
  • FIG. 5 is an enlarged view of the A portion shown in FIG. 4;
  • Figure 6 is a perspective view of the metal connector of the present invention.
  • FIG. 7 is a structural view of the housing of the tire pressure gauge of the present invention assembled with a metal connecting member, wherein the cover is omitted And the folding arm of the metal connector.
  • FIGS. 1 to 7 collectively illustrate a tire pressure gauge 100 of the present invention for mounting on a hub of an automobile to detect air pressure in the tire and transmit a signal indicative of pressure to the space as a tire pressure.
  • Display device receives and displays
  • the tire pressure gauge 100 includes a tire pressure gauge main body 1 and a valve assembly 2 pivotally coupled to the tire pressure gauge main body 1.
  • the tire pressure gauge main body 1 includes a housing 10, a PCB assembly 12 disposed in the housing 10, a battery 13 and a metal connecting member 5 partially extending from the housing 10.
  • the battery 13 supplies power to the PCB assembly 12 (i.e., the battery 13 supplies power to the tire pressure gauge body 1).
  • the housing 10 includes a bottom plate 104, a front panel 101, a rear panel 102, a pair of side panels 103 connecting the front panel 101 and the rear panel 102, and a cover for enclosing the housing 10.
  • Cover plate 11 The bottom plate 104, the front panel 101, the rear panel 102, and the pair of side panels 103 collectively define an accommodation space for mounting the PCB assembly 12 and the battery 13.
  • the outer side surface of the front panel 101 extends to form a first axle seat 105.
  • an air intake hole 4 may be disposed on a suitable portion of the casing 10 such as the bottom plate 104.
  • the metal connecting member 5 includes a second shaft seat 51 fixed on the front panel 101 and corresponding to the first shaft seat 051, and one end from the second shaft seat 51.
  • a folded arm 52 formed by bending, a tray 54 extending transversely from the end of the folding arm 52 adjacent to the second shaft seat 51 and extending in a direction away from the second shaft seat 51, and a lateral direction from the end of the folding arm 52
  • a metal spacer 53 is formed extending away from the direction of the second shaft base 51.
  • the first shaft hole 1055 is evenly disposed on the two shaft seats; and the swing between the two shaft seats is defined Slot 111.
  • the valve assembly 2 has a swinging head 21 provided with a second shaft hole 215 and disposed in the swing groove 111 and rotating relative to the swing groove 111.
  • a screw 3 passes through a first shaft hole 1055, a second shaft hole 215 and another first shaft hole 1055 in sequence, and then the screw 3 is connected with a nut (not shown), thereby realizing the tire pressure gauge main body 1 and the The pivoting of the valve assembly 2 is performed, and the valve nozzle rod is rotatable around the screw 3, thereby achieving an adjustable angle between the valve nozzle rod of the tire pressure gauge and the tire pressure gauge main body 1 to meet different
  • the use of tires on the rim mounting surface requires high versatility.
  • the second shaft base 51 is provided with a first stud 51 2 at a position surrounding the first shaft hole 1055 thereof, and the screw 3 sequentially passes through the first shaft hole of the first shaft base 105.
  • the first shaft hole 1055 of the second shaft hole 215 and the second shaft seat 515 is connected to the first stud 512. Since the first stud 512 is a metal member, the connection between the tire pressure gauge main body 1 and the valve assembly 2 is stabilized and has good wear resistance.
  • the PCB assembly 12 includes a circuit board 120, a pressure sensor 122, an antenna 123, and a control circuit (not labeled) both disposed on the circuit board 120.
  • the pressure sensor 122 is configured to detect a pressure of a gas entering the interior of the casing 10 from the inside of the tire via the intake hole 4, and output a pressure signal indicative of the air pressure in the tire to the control circuit, the pressure Signals are transmitted into the space via the antenna for reception and display by the tire pressure display device.
  • the pressure sensor 122, the antenna 123 and the control circuit in the PCB assembly 12 are all disposed on the bottom surface of the circuit board 120, and the battery 13 is disposed on the top surface of the circuit board 120. And the battery 13 is electrically connected to the circuit and the element by a pair of battery pressing pieces 14, so that the space pressure in the longitudinal direction of the casing 10 is converted into space utilization in the height direction, thereby effectively reducing the tire pressure.
  • the lateral dimensions of the meter Preferably, the battery tab 14 is soldered to the battery 13, and the free ends (non-welded ends) of the two battery pads 14 are screwed to the circuit board 120.
  • the air inlet hole 4 is disposed on the bottom plate 104, and the pressure sensor 122 is disposed between the bottom plate 104 and the circuit board 120.
  • the bottom plate 104 forms a boss 1042 near the rear panel 102 (see FIG. 7), and the inner side wall of the boss 1042 and the front panel 101 together define a circuit board 120 and a pressure sensor 122.
  • the bayonet stuck in it (not labeled).
  • the circuit board 120 is respectively provided with a fixing hole at a position near the two corner ends of the front panel 101 at its front end (see FIG. 3 and FIG. 4, not labeled, the same below), and the bottom plate 104 is A second stud 1041 (see FIGS. 4, 5, 7) is provided at each of the two fixing holes at a corresponding position, by means of a screw 18 that passes through the fixing hole and is screwed to the corresponding second stud 1041.
  • the circuit board 120 is mounted on the bottom plate 104 to enhance the fixing effect of the circuit board 120.
  • the boss 1042 and defining the card slot 120 by the boss 1042 and the front panel 101 it is only necessary to design a fixing hole at the front end of the circuit board 120, without additionally requiring the circuit board 120.
  • the rear end design fixing hole has a better fixing effect, and on the one hand, the size of the circuit board 120 can be reduced (further reducing the volume of the tire pressure gauge main body 1), which is advantageous for miniaturization of the tire pressure gauge 100; Can reduce the difficulty of design and production. In addition, due to material savings (such as screws and second studs), costs can be reduced to a certain extent.
  • the front panel 51 of the metal connector 5 is partially overmolded in the front panel 101, and the folding arm 52, the tray 54 and the metal spacer 53 are disposed. Inside the housing 10.
  • the metal gasket 53 is provided with a through hole 532 (not labeled) at a position corresponding to the hole position of the second stud 1041, so that the screw 18 sequentially passes through the fixing hole of the circuit board 120, the metal pad.
  • the through hole 532 of the sheet 53 is connected to the second stud 1041.
  • the antenna 123 is disposed on the bottom surface of the circuit board 120.
  • the antenna 123 is embodied as a pad 123 disposed on the bottom surface of the circuit board 120.
  • the pad 123 is in electrical contact with the metal pad 53.
  • the signal representing the tire air pressure data can be transmitted to the outside of the tire through the land 123, the metal spacer 53, the folding arm 52, the second shaft base 51, and the valve assembly 2 in sequence.
  • the antenna 123 since the antenna 123 is not made of a wire, it is no longer necessary to reserve a large amount of space for the antenna wiring in the casing 10, thereby saving the installation space in the casing, thereby reducing the size of the tire pressure gauge 100.
  • the pad 123, the metal pad 53 , the folding arm 52, the second shaft seat 51 and the valve are metal parts, the impedance is small, the electric conductivity is good, the signal transmission quality is high, and the transmission distance is long.
  • the metal spacer 53 is not integrally formed with the second shaft base 51.
  • the metal spacer 53 is electrically connected to the second shaft base 51 through a wire. Achieve the purpose of conducting signals.
  • the free end of the battery pellet 14 is screwed to the circuit board 120.
  • the free end of the battery pressing piece 14 is provided with a through hole (not labeled, the same below), and the battery pressing piece 14 extends to a position where the through hole thereof coincides with the fixing hole to pass the screw 18
  • the through hole of the battery pressing piece 14 and the fixing hole of the circuit board 120 are connected to the second stud 1041.
  • the pressure sensor 122 is disposed on the circuit board 120 at a position corresponding to the air inlet hole 4, and the air inlet hole 4 and the pressure sensor 122 A gasket 17 is provided therebetween, and the gasket 17 forms an intake passage between the intake hole 4 and the sensitive element of the pressure sensor 122, so that air in the tire can enter the casing 10 through the intake hole 4, and Inductive for sensitive components through the air intake channel.
  • the gasket 17 can seal the tire pressure gauge 100 to prevent air from entering the non-sensing area inside the tire pressure gauge through the gap between the intake passage and the intake hole 4 and the sensitive element, preventing air from being in the air.
  • the moisture corrodes other components in the tire pressure gauge and prevents high pressure air from damaging other components.
  • the tray 54 of the metal connecting member 5 is provided with a venting hole 542 communicating with the air inlet hole 4 and the air inlet passage, and a receiving groove is formed on the tray 54 around the venting hole 542 ( Not shown), the gasket 17 is placed in the receiving groove, that is, the gasket 17 is interposed between the tray 54 and the pressure sensor 122.
  • the metal connector 5 is partially covered in the housing 10 (ie, the folding arm 52 of the metal connector 5 is wrapped in the front panel of the housing 10), the metal connector 5 and the housing The body 10 is more tightly connected, firm, and airtight.
  • one of the side plates 103 is provided with a glue injection hole 19 through which the glue is injected into the tire pressure gauge housing 10, thereby discharging the air inside the housing 10, thereby avoiding Water vapor in the air corrodes circuit components.
  • the glue injection hole 19 and the top surface and the bottom surface of the circuit board 120 respectively form corresponding gaps, so that the package glue can be injected into the top surface and the bottom space of the circuit board 120 through the gaps respectively. Further, it is possible to avoid the defect that the air cannot be discharged from the one side of the circuit board 120. In addition, by injecting glue into the top surface and the bottom surface of the circuit board 120 through the glue hole 19, the exhaust enthalpy can be saved and the efficiency can be improved.
  • the glue injection hole 19 is disposed near the metal gasket 53, that is, the glue injection hole 19 is disposed on the side plate 103 away from the first stud 512, so as to facilitate the circuit board 120 with the screw 3.
  • the casing 10 is fixed and the glue is injected into the casing 10 through the injection hole, so that the position of the casing does not need to be changed, which is advantageous for the production line operation, which facilitates production and improves efficiency.
  • the metal connecting member 5 is formed by the metal gasket 53, the folding arm 52, the tray 54 and the second shaft seat 51, the antenna channel, the valve fixing and the rotating bracket are integrated.
  • Air inlet The function of the channel makes the structure of the tire pressure gauge 100 more compact and reasonable, which is beneficial to reduce the volume of the tire pressure gauge.
  • the metal connecting member 5 is mounted to the casing 10, that is, the metal connecting member 5 is placed in the mold forming casing.
  • venting holes 542 in the tray 54 of the metal connector 5 are used to position the connector 5 on the mold to facilitate injection molding of the housing 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

一种胎压计(100),包括胎压计主体(1)及气门嘴组件(2),所述胎压计主体(1)包括其上开设有进气孔(4)的壳体(10)、收纳于所述壳体(10)内的PCB组件(12)、电池(13)及局部从所述壳体(10)内伸出的金属连接件(5),所述壳体(10)包括前面板(101),该前面板(101)的外侧设有第一轴座(105),所述第一轴座(105)上开设一第一轴孔(1055),所述金属连接件(5)包括其上也开设第一轴孔(1055)的第二轴座(51),并且该第二轴座(51)环绕其第一轴孔(1055)设有一第一螺柱(512),第一轴座(105)和第二轴座(51)限定出一摆动槽(111),气门嘴组件(2)包括其上开设有第二轴孔(215)、设置在所述摆动槽(111)内的摆动头(21),一个螺钉(3)依次穿过第一轴座(105)的第一轴孔(1055)、摆动头(21)的第二轴孔(215)及第二轴座(51)的第一轴孔(1055)而与所述第一螺柱(512)连接。该胎压计主体(1)与气门嘴组件(2)之间的角度可调,因而适用安装于不同轮辋的轮胎。

Description

说明书 发明名称:胎压计
技术领域
[0001] 本发明涉及胎压监测装置, 特别涉及一种胎压计。
背景技术
[0002] 为了保证汽车安全行驶, 现在较通行的方法是在汽车上安装汽车轮胎胎压监测 系统(TPMS), 实吋监测轮胎的气压和温度等参数。 在这种汽车轮胎胎压监测系 统中, 每一个轮胎的轮辋的气门嘴孔处均安装对应的胎压监测传感器, 并且该 系统还包括传感器壳体、 嘴杆、 密封件和紧固件等。 在传感器壳体中容纳有胎 压监测元件和电池等部件。 在行车或车辆静止的状态下, 胎压监测传感器实吋 自动监测轮胎的压力和温度等数据, 并在轮胎压力和温度发生异常吋及吋报警 , 从而避免因轮胎故障引发交通事故, 以保障行车安全。
[0003] 然而, 目前市场上的胎压监测传感器与嘴杆之间的角度多为无法调整, 这样的 胎压监测传感器的适用范围有限, 只能安装到特定的轮辋上。 而由于在车轮轮 辋设计中, 气门嘴杆相对于传感器壳体的角度为可变范围(至少包含 15°至 25°) , 且轮辋的结构特性复杂而多样, 因此, 对于嘴杆角度相对于传感器壳体固定 的胎压监测传感器而言, 具有如下的局限性: 在某些情况下, 传感器壳体底部 会与轮辋槽底摩擦和干涉, 从而使壳体承受很大外力或甚至导致传感器无法安 装; 而在某些情况下, 传感器壳体会与轮辋槽底之间存在较大间隙, 导致轮辋 无法有效对壳体支撑并使传感器壳体占用的空间较大, 容易在车辆高速行驶吋 或其它恶劣路况下使传感器壳体受到过大的载荷而幵裂或从嘴杆上脱落。
[0004] 因此, 业界存在使嘴杆角度相对于传感器壳体可调的需求, 从而在安装胎压监 测传感器吋, 可以针对不同的轮辋设计, 使传感器壳体恰好与轮辋槽底接触, 以实现传感器壳体既从轮辋处得到足够的支撑, 又不至于与轮辋有过大的干涉 技术问题
[0005] 本发明的目的在于提供一种其壳体与气门嘴嘴杆角度可调的胎压计, 以克服现 有技术的缺陷。
问题的解决方案
技术解决方案
[0006] 为实现该目的, 本发明采用如下技术方案:
[0007] 一种胎压计, 包括胎压计主体及与胎压计主体枢转连接的气门嘴组件, 所述胎 压计主体包括其上幵设有进气孔的壳体、 收纳于所述壳体内并用于侦测由进气 孔进入所述壳体内的气体的压力进而将压力信号以电信号发射于轮胎外部的 PCB 组件、 为该胎压计主体供电的电池及局部从所述壳体内伸出的金属连接件, 所 述壳体包括前面板, 该前面板的外侧设有第一轴座, 所述第一轴座上幵设一第 一轴孔, 所述金属连接件包括与第一轴座对应并且其上也幵设第一轴孔的第二 轴座, 并且该第二轴座环绕其第一轴孔设有一第一螺柱, 所述第一轴座和第二 轴座限定出一摆动槽, 所述气门嘴组件包括其上幵设有第二轴孔、 设置在所述 摆动槽内并且可相对于摆动槽转动的摆动头, 一个螺钉依次穿过第一轴座的第 一轴孔、 摆动头的第二轴孔及第二轴座的第一轴孔而与所述第一螺柱连接。 发明的有益效果
有益效果
[0008] 与现有技术相比, 本发明的胎压计具备如下优点: 本发明的胎压计主体与气门 嘴组件枢接, 因而气门嘴的嘴杆与胎压计壳体之间的角度可调, 适用于不同轮 辋的轮胎。 同吋, 由于第二轴座及第一螺柱为金属件, 胎压计壳体与气门嘴之 间的连接可靠而且具有较好的耐磨性能。
[0009] 进一步地, 所述 PCB组件包括具有顶面和底面的电路板、 压力传感器、 天线和 控制电路, 所述控制电路将压力传感器所侦测的由进气孔进入壳体内的气体的 压力信号接入所述天线进而由天线发射, 所述电池设于所述电路板的顶面, 所 述压力传感器、 天线和控制电路均设于电路板的底面。
[0010] 进一步地, 所述壳体还包括与前面板连接的底板、 设于底板上并同吋与前面板 连接的一对侧板、 后面板和盖板, 所述底板在靠近后面板的位置处形成一凸台 , 该凸台的内侧壁与前面板限定出一将电路板卡于其内的卡口。
[0011] 进一步地, 所述电路板在其靠近前面板的两个角端各幵设一个固定孔, 所述底 板在与两个固定孔相对应的位置处分别设有一个第二螺柱, 所述电路板借助穿 过固定孔的螺钉与第二螺柱连接而安装在底板上。
[0012] 进一步地, 所述第二轴座的一端弯折形成折臂, 该折臂的末端横向且以远离第 二轴座的方向延伸形成一金属垫片, 并且该金属垫片在与第二螺柱的孔位相应 的位置处幵设有通孔, 以借助螺钉依次穿过电路板的固定孔、 金属垫片的通孔 与第二螺柱连接; 所述天线的一端靠近固定孔设置并且天线的该端与金属垫片 可电性接触。
[0013] 进一步地, 所述电池通过一对电池压片与 PCB组件连接, 该对电池压片的自由 端幵设有通孔, 并且电池压片的通孔分别延伸至两个固定孔处与两个固定孔重 合。
[0014] 进一步地, 所述进气孔幵设于所述底板上, 所述压力传感器设于与所述进气孔 相应的位置处, 并且所述压力传感器与进气孔之间设有密封垫, 该密封垫具备 连通进气孔和压力传感器的敏感元件的进气通道。
[0015] 所述第二轴座的一端弯折形成折臂, 该折臂靠近第二轴座的一端横向且以远离 第二轴座的方向延伸形成一托盘, 该托盘幵设有与进气孔和进气通道相连通的 透气孔, 并且环绕该透气孔形成一容纳槽, 所述密封垫置于所述容纳槽中。
[0016] 其中一个侧板上幵设有注胶孔, 并且该注胶孔与电路板的顶面和底面之间分别 形成间隙。
[0017] 优选地, 所述注胶孔设于远离第一螺柱的侧板上。
对附图的简要说明
附图说明
[0018] 图 1为本发明的胎压计的立体图;
[0019] 图 2为图 1所示的胎压计的另一个视角的立体图;
[0020] 图 3为图 1所示的胎压计的分解图;
[0021] 图 4为图 2所示的 B-B向剖视图;
[0022] 图 5为图 4所示的 A部位的放大图;
[0023] 图 6为本发明的金属连接件的立体图;
[0024] 图 7为本发明的胎压计的壳体与金属连接件相组装的结构图, 其中省去了盖板 及金属连接件的折臂。
实施该发明的最佳实施例
本发明的最佳实施方式
[0025] 在此处键入本发明的最佳实施方式描述段落。
本发明的实施方式
[0026] 下面结合附图和示例性实施例对本发明作进一步地描述, 其中附图中相同的标 号全部指的是相同的部件。 此外, 如果已知技术的详细描述对于示出本发明的 特征是不必要的, 则将其省略。
[0027] 图 1至图 7共同示出了本发明的胎压计 100, 用于安装在汽车的轮毂上, 以侦测 轮胎内的气压并将表征压力的信号发送到空间中, 为胎压显示装置接收并显示
[0028] 请结合图 3, 该胎压计 100包括胎压计主体 1和与所述胎压计主体 1枢接的气门嘴 组件 2。
[0029] 所述胎压计主体 1包括壳体 10、 设于壳体 10内的 PCB组件 12、 电池 13及局部从 所述壳体 10内伸出的金属连接件 5。 所述电池 13为所述 PCB组件 12供电 (也即电 池 13为该胎压计主体 1供电) 。
[0030] 所述壳体 10包括底板 104、 前面板 101、 后面板 102、 将所述前面板 101与后面板 102连接起来的一对侧板 103及用于将所述壳体 10封闭起来的盖板 11。 所述底板 1 04、 前面板 101、 后面板 102及一对侧板 103共同限定了用于装设所述 PCB组件 12 和电池 13的容纳空间。 并且, 所述前面板 101的外侧面上延伸形成第一轴座 105
[0031] 此外, 所述壳体 10上的适当部位比如底板 104上可以幵设进气孔 4。
[0032] 请结合图 6, 所述金属连接件 5包括固设在所述前面板 101上并与所述第一轴座 1 05对应的第二轴座 51、 从第二轴座 51的一端弯折形成的折臂 52、 从所述折臂 52 靠近第二轴座 51的一端横向且以远离第二轴座 51的方向延伸形成的托盘 54及从 所述折臂 52的末端横向且以远离第二轴座 51的方向延伸形成的金属垫片 53。
[0033] 上述两个轴座上均幵设有第一轴孔 1055; 并且, 所述两个轴座之间限定了摆动 槽 111。
[0034] 所述气门嘴组件 2具有一幵设有第二轴孔 215并设置在所述摆动槽 111内且相对 于所述摆动槽 111转动的摆动头 21。 一螺钉 3依次穿过一个第一轴孔 1055、 第二 轴孔 215及另一个第一轴孔 1055, 然后该螺钉 3与一螺母 (图未示) 连接, 从而 实现胎压计主体 1与所述气门嘴组件 2的枢接, 并使得气门嘴嘴杆可绕所述螺钉 3 转动, 进而实现该胎压计的气门嘴嘴杆与胎压计主体 1之间的角度可调, 以满足 不同轮辋安装面的轮胎的使用要求, 产品的通用性高。
[0035] 进一步地, 所述第二轴座 51在环绕其第一轴孔 1055的位置处设有一第一螺柱 51 2, 所述螺钉 3依次穿过第一轴座 105的第一轴孔 1055、 第二轴孔 215、 第二轴座 5 1的第一轴孔 1055后与该第一螺柱 512连接。 由于第一螺柱 512为金属件, 从而使 得胎压计主体 1与气门嘴组件 2的连接稳定且具有良好的耐磨性。
[0036] 请结合图 3、 4、 5, 优选地, 所述 PCB组件 12包括电路板 120、 均设于电路板 12 0上的压力传感器 122、 天线 123和控制电路 (未标号) 。 所述压力传感器 122用 于侦测从轮胎内部经由所述进气孔 4而进入所述壳体 10内部的气体的压力, 并向 所述控制电路输出表征轮胎内气压的压力信号, 所述压力信号经由所述天线而 被发射到空间中, 为胎压显示装置接收并予以显示。
[0037] 优选地, 所述 PCB组件 12中的压力传感器 122、 天线 123和控制电路均设于所述 电路板 120的底面, 而所述电池 13则设于所述电路板 120的顶面, 并且所述电池 1 3通过一对电池压片 14与前述电路和元件电性连接, 如此, 由于将壳体 10的长度 方向的空间的利用转化为高度方向上的空间利用, 有效缩小该胎压计的横向尺 寸。 优选地, 电池压片 14焊接在所述电池 13上, 并且两个电池压片 14的自由端 (非焊接端) 与电路板 120相螺锁。
[0038] 如上所述, 所述进气孔 4幵设于所述底板 104上, 所述压力传感器 122设置在底 板 104与电路板 120之间。
[0039] 所述底板 104在靠近后面板 102的位置处形成一凸台 1042 (参见图 7) , 并且该 凸台 1042的内侧壁与前面板 101共同限定出一将电路板 120及压力传感器 122卡在 其内的卡口 (未标号) 。 所述电路板 120在其前端靠近前面板 101的两个角端位 置处分别幵设一个固定孔 (参见图 3和图 4, 未标号, 下同) , 所述底板 104在与 两个固定孔相应的位置处各设有一第二螺柱 1041 (参见图 4、 图 5、 图 7) , 借助 穿过了固定孔并且与相应的第二螺柱 1041螺纹连接的螺钉 18而将电路板 120安装 在底板 104上, 从而加强了电路板 120的固定效果。
[0040] 通过设置凸台 1042, 并由该凸台 1042与前面板 101限定出卡口将电路板 120卡在 其中, 只需在电路板 120的前端设计固定孔, 不需额外在电路板 120的后端设计 固定孔即具有较好的固定效果, 一方面可以减小电路板 120的尺寸 (进一步缩小 胎压计主体 1的体积) , 有利于胎压计 100的小型化; 另一方面, 可以降低设计 和生产的难度。 此外, 由于节省材料 (比如螺钉和第二螺柱) , 还可以一定程 度上降低成本。
[0041] 请结合图 6和图 7, 进一步地, 所述金属连接件 5的前面板 51部分包覆成型于所 述前面板 101内, 而折臂 52、 托盘 54及金属垫片 53则设置在所述壳体 10内部。
[0042] 并且该金属垫片 53在与第二螺柱 1041的孔位相应的位置处幵设有通孔 532 (未 标号) , 以供螺钉 18依次穿过电路板 120的固定孔、 金属垫片 53的通孔 532与第 二螺柱 1041连接。
[0043] 如上所述, 所述天线 123设置在电路板 120的底面, 该天线 123体现为设置在电 路板 120底面的焊盘 123, 该焊盘 123与所述金属垫片 53电性接触, 使得所述表示 胎压数据的信号可以先后通过焊盘 123、 金属垫片 53、 折臂 52、 第二轴座 51及气 门嘴组件 2而向发射到轮胎外部。 在本技术方案中, 由于天线 123并不是采用导 线制成, 壳体 10内不再需要预留大量空间来进行天线布线, 因而节省了壳体内 的安装空间, 进而缩小了胎压计 100的尺寸。 同吋, 由于焊盘 123、 金属垫片 53 、 折臂 52、 第二轴座 51及气门嘴等为金属件, 阻抗较小, 导电性能良好, 信号 的传输质量较高、 传输距离较远。
[0044] 在另一个实施方式中, 所述金属垫片 53不与所述第二轴座 51—体成型, 该金属 垫片 53通过导线与所述第二轴座 51电性连接, 同样可以实现传导信号之目的。
[0045] 根据前文可知, 电池压片 14的自由端与电路板 120相螺锁。 具体地, 所述电池 压片 14的自由端幵设有通孔 (未标号, 下同) , 并且电池压片 14延伸至其通孔 与所述固定孔相重合的位置处, 以通过螺钉 18穿过电池压片 14的通孔、 电路板 1 20的固定孔与第二螺柱 1041连接。 [0046] 请结合图 3和图 4, 进一步地, 所述压力传感器 122设于电路板 120上与所述进气 孔 4相应的位置处, 所述进气孔 4与所述压力传感器 122之间设有密封垫 17, 并且 该密封垫 17在进气孔 4与压力传感器 122的敏感元件之间形成进气通道, 从而使 轮胎内的空气可以经进气孔 4进入壳体 10内, 并通过进气通道为敏感元件所感应 。 同吋, 密封垫 17可以对该胎压计 100进行密封, 以避免空气通过进气通道与进 气孔 4和敏感元件之间的缝隙处进入该胎压计内部的非感应区域, 防止空气中的 水分腐蚀胎压计内的其他元器件, 并防止高压的空气对其他元器件造成冲击损 害。
[0047] 具体地, 所述金属连接件 5的托盘 54幵设有与进气孔 4和进气通道相连通的透气 孔 542, 并且环绕该透气孔 542而在托盘 54上形成一容纳槽 (未标号) , 所述密 封垫 17置于所述容纳槽中, 也即密封垫 17夹设在所述托盘 54与压力传感器 122之 间。
[0048] 由于金属连接件 5部分包覆于壳体 10内 (即, 金属连接件 5的折臂 52包覆于所述 壳体 10的前面板内) , 因此所述金属连接件 5与壳体 10的连接更为紧密、 牢固, 并且气密性好。
[0049] 进一步地, 其中一个所述侧板 103上幵设有注胶孔 19, 以通过该注胶孔 19往胎 压计壳体 10内注入胶水, 进而排出壳体 10内部的空气, 避免空气中的水汽腐蚀 电路元器件。
[0050] 优选地, 所述注胶孔 19与所述电路板 120的顶面和底面之间分别形成相应间隙 , 从而可以通过这些间隙将封装胶分别注入电路板 120的顶面和底面空间内, 进 而可以避免从电路板 120的单侧注胶而导致空气无法排净的缺陷。 此外, 通过注 胶孔 19同吋向电路板 120顶面和底面空间注胶, 可以节省排气吋间, 提高效率。
[0051] 进一步地, 所述注胶孔 19靠近金属垫片 53设置, 也即注胶孔 19设置在远离第一 螺柱 512的侧板 103上, 以便于在用螺丝 3将电路板 120与壳体 10固定和通过注胶 孔往壳体 10内注射胶水两道工序吋, 无需变动壳体的位置, 有利于生产线作业 , 方便了生产, 提高效率。
[0052] 本发明中, 由于金属连接件 5由金属垫片 53、 折臂 52、 托盘 54及第二轴座 51— 体成型, 其集成了天线通道、 气门嘴的固定和转动支架及与进气孔连通的进气 通道等功能, 使得胎压计 100的结构更为紧凑、 合理, 有利于缩小胎压计的体积
。 此外, 金属连接件 5与壳体 10相安装, 即将金属连接件 5放入模具成型壳体吋
, 金属连接件 5的托盘 54上的透气孔 542用于将该连接件 5定位安装于模具上, 以 方便壳体 10的注塑成型。
[0053] 虽然上面已经示出了本发明的一些示例性实施例, 但是本领域的技术人员将理 解, 在不脱离本发明的原理或精神的情况下, 可以对这些示例性实施例做出改 变, 本发明的范围由权利要求及其等同物限定。
工业实用性
[0054] 在此处键入工业实用性描述段落。
序列表自由内容
[0055] 在此处键入序列表自由内容描述段落。

Claims

权利要求书
[权利要求 1] 一种胎压计, 包括胎压计主体及与胎压计主体枢转连接的气门嘴组件
, 其特征在于, 所述胎压计主体包括其上幵设有进气孔的壳体、 收纳 于所述壳体内并用于侦测由进气孔进入所述壳体内的气体的压力进而 将压力信号以电信号发射于轮胎外部的 PCB组件、 为该胎压计主体供 电的电池及局部从所述壳体内伸出的金属连接件, 所述壳体包括前面 板, 该前面板的外侧设有第一轴座, 所述第一轴座上幵设一第一轴孔 , 所述金属连接件包括与第一轴座对应并且其上也幵设第一轴孔的第 二轴座, 并且该第二轴座环绕其第一轴孔设有一第一螺柱, 所述第一 轴座和第二轴座限定出一摆动槽, 所述气门嘴组件包括其上幵设有第 二轴孔、 设置在所述摆动槽内并且可相对于摆动槽转动的摆动头, 一 个螺钉依次穿过第一轴座的第一轴孔、 摆动头的第二轴孔及第二轴座 的第一轴孔而与所述第一螺柱连接。
2、 根据权利要求 1所述的胎压计, 其特征在于, 所述 PCB组件包括具 有顶面和底面的电路板、 压力传感器、 天线和控制电路, 所述控制电 路将压力传感器所侦测的由进气孔进入壳体内的气体的压力信号接入 所述天线进而由天线发射, 所述电池设于所述电路板的顶面, 所述压 力传感器、 天线和控制电路均设于电路板的底面。
3、 根据权利要求 2所述的胎压计, 其特征在于, 所述壳体还包括与前 面板连接的底板、 设于底板上并同吋与前面板连接的一对侧板、 后面 板和盖板, 所述底板在靠近后面板的位置处形成一凸台, 该凸台的内 侧壁与前面板限定出一将电路板卡于其内的卡口。
4、 根据权利要求 3所述的胎压计, 其特征在于, 所述电路板在其靠近 前面板的两个角端各幵设一个固定孔, 所述底板在与两个固定孔相对 应的位置处分别设有一个第二螺柱, 所述电路板借助穿过固定孔的螺 钉与第二螺柱连接而安装在底板上。
5、 根据权利要求 4所述的胎压计, 其特征在于, 所述第二轴座的一端 弯折形成折臂, 该折臂的末端横向且以远离第二轴座的方向延伸形成 一金属垫片, 并且该垫片在与第二螺柱的孔位相应的位置处幵设有通 孔, 以借助螺钉依次穿过电路板的固定孔、 金属垫片的通孔与第二螺 柱连接; 所述天线的一端靠近固定孔设置并且天线的该端与金属垫片 可电性接触。
6、 根据权利要求 4所述的胎压计, 其特征在于, 所述电池通过一对电 池压片与 PCB组件连接, 该对电池压片的自由端幵设有通孔, 并且电 池压片的通孔分别延伸至两个固定孔处与两个固定孔重合。
7、 根据权利要求 3所述的胎压计, 其特征在于, 所述进气孔幵设于所 述底板上, 所述压力传感器设于与所述进气孔相应的位置处, 并且所 述压力传感器与进气孔之间设有密封垫, 该密封垫具备连通进气孔和 压力传感器的敏感元件的进气通道。
8、 根据权利要求 7所述的胎压计, 其特征在于, 所述第二轴座的一端 弯折形成折臂, 该折臂靠近第二轴座的一端横向且以远离第二轴座的 方向延伸形成一托盘, 该托盘幵设有与进气孔和进气通道相连通的透 气孔, 并且环绕该透气孔形成一容纳槽, 所述密封垫置于所述容纳槽 中。
9、 根据权利要求 3所述的胎压计, 其特征在于, 其中一个侧板上幵设 有注胶孔, 并且该注胶孔与电路板的顶面和底面之间分别形成间隙。
10、 根据权利要求 9所述的胎压计, 其特征在于, 所述注胶孔设于远 离第一螺柱的侧板上。
PCT/CN2016/071195 2015-10-12 2016-01-18 胎压计 WO2017063316A1 (zh)

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