CN204249747U - Tire pressure monitoring sensor - Google Patents
Tire pressure monitoring sensor Download PDFInfo
- Publication number
- CN204249747U CN204249747U CN201420758430.5U CN201420758430U CN204249747U CN 204249747 U CN204249747 U CN 204249747U CN 201420758430 U CN201420758430 U CN 201420758430U CN 204249747 U CN204249747 U CN 204249747U
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- CN
- China
- Prior art keywords
- mouth
- tire pressure
- pressure monitoring
- monitoring sensor
- sensor housing
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- Legal status (The legal status 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 status listed.)
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Abstract
The utility model relates to a kind of tire pressure monitoring sensor (1), comprising: sensor housing (2), is wherein provided with tire pressure monitoring element, metal mouth bar (3), it comprises the mouth rod body part (31) and the mouth pole-footing portion (32) of one end that is positioned near sensor housing (2) that are positioned at away from one end of sensor housing, and the outside face of mouth rod body part has outside thread, with nut (6), it has the negative thread matched with the outside thread of mouth rod body part, by metal mouth bar (3) can be fixed in the through hole (93) in wheel rim against wheel rim (9) rotating nut, wherein, sensor housing comprises main housing part (21) and is connected to the metallic support (22) on this main housing part, recess (33) is formed between mouth rod body part and mouth pole-footing portion, metallic support is inserted in this recess, and form cambered surface with mouth pole-footing portion and contact, make the angle adjustable between sensor housing and metal mouth bar during installing tire pressure monitoring sensor.
Description
Technical field
The utility model relates to vehicle electric field, in particular to a kind of tire pressure monitoring sensor.
Background technology
In order to ensure vehicle safety travel, now comparatively current method on automobile, installs automobile tire pressure monitoring system (TPMS), the parameters such as the air pressure of Real-Time Monitoring tire and temperature.Automobile tire pressure monitoring system installs tire pressure monitoring sensor on the wheel rim of each tire, tire pressure monitoring sensor is installed in the valve hole of tyre rim usually, and comprise sensor housing, mouth bar, sealing member and fastener etc., in sensor housing, accommodate the parts such as tire pressure monitoring element and battery.Under the state of driving or stationary vehicle, the data such as the pressure and temperature of tire pressure monitoring sensor real-time automatic monitoring tire, and when tire pressure and temperature occur abnormal and alarm, thus avoid because tire fault causes traffic accident, with guarantee driving safety.
Mostly be fixed angle between tire pressure monitoring sensor in the market and mouth bar, the restricted application of such tire pressure monitoring sensor, can only be installed on specific wheel rim.And due in rim for automobile wheel design, valve hole angle is variable range (at least comprising 15 ° to 25 °), and the behavior of structure of wheel rim is complicated and various, therefore, for the tire pressure monitoring sensor that mouth bar angle is fixing relative to sensor housing, there is following limitation: in some cases, understand bottom sensor housing and rub at the bottom of rim gutter and interfere, thus making housing bear very large stress or even cause sensor to install; In some cases, sensor shell is known from experience and be there is comparatively wide arc gap at the bottom of rim gutter, cause lacking wheel rim to the support of housing and the space making sensor housing take is comparatively large, easily when high vehicle speeds or under other severe road conditions, make sensor housing be subject to excessive load and ftracture or come off from mouth bar.
Therefore, there is the demand making mouth bar angle adjustable relative to sensor housing, thus when installing tire pressure monitoring sensor, can for different rim design, sensor housing is contacted with at the bottom of rim gutter just, both obtained enough supports from rim to realize sensor housing, be unlikely to again have excessive amount of interference with wheel rim.
Utility model content
The utility model is for the above-mentioned defect existed in prior art, provide a kind of tire pressure monitoring sensor, angle adjustable between the sensor housing of this tire pressure monitoring sensor and mouth bar, and stable connection between sensor housing and mouth bar and there is good resistance to abrasion.
The utility model relates to a kind of tire pressure monitoring sensor, and described tire pressure monitoring sensor comprises:
-sensor housing, tire pressure monitoring element is arranged in described sensor housing;
-metal mouth bar, described metal mouth bar comprises the mouth rod body part and the mouth pole-footing portion of the one end be positioned near sensor housing that are positioned at away from one end of sensor housing, and the outside face of mouth rod body part has outside thread; With
-nut, described nut has the negative thread matched with the outside thread of mouth rod body part, by metal mouth bar can be fixed in the through hole in wheel rim against wheel rim rotating nut,
Wherein, described sensor housing comprises main housing part and is connected to the metallic support on this main housing part, recess is formed between mouth rod body part and mouth pole-footing portion, described metallic support is inserted in described recess, and form cambered surface with mouth pole-footing portion and contact, make during installation tire pressure monitoring sensor, the angle adjustable between sensor housing and metal mouth bar.
Angle adjustable between sensor housing from mouth bar makes it possible to carry out adaptive different rim design by adjusting this angle, such as different valve hole angles and other Diversity structure, thus the suitable laminating of sensor housing and wheel rim all can be realized for different rim design.
In addition, because the contact between metallic support and mouth pole-footing portion is that face contacts, and after tire pressure monitoring sensor installs, the screwing force of nut makes metallic support be held firmly clamped to put in described recess, and and then make the bottom of sensor housing obtain enough supports from rim, therefore, the stable connection between sensor housing and mouth bar and there is good resistance to abrasion.
Preferably, described tire pressure monitoring sensor also comprises sealing element, and described sealing element is enclosed within mouth rod body part.
One preferred embodiment in, described sealing element comprises seal ring and encapsulates at least in part and compress the tightening seal washer of sealing circle, and wherein, tightening seal washer is made up of metallic material, and seal ring is made by having compressible material.Described seal ring is preferably made up of silica gel or ethylene-propylene-diene monomer (EPDM) glue material.Described tightening seal washer is preferably made up of Steel material.
Adopt seal ring and the such combination sealing mode of tightening seal washer, the constant of sealing member amount of compression can be realized by " sandwich " formula fixed form, thus form reliable and stable sealing effectiveness.In addition, all-metal connects can realize sizable gripping power, thus can support the heavier caudal components of quality.
Preferably, seal ring also have for when mounted as centering guide structure inclined-plane.
Preferably, seal ring by tightening seal washer along mouth bar axially and mouth bar radial compression.
Alternatively, the variable range of the angle between sensor housing and metal mouth bar is between 10 ° and 37 °.
Preferably, after being fixed to by tire pressure monitoring sensor in the through hole in wheel rim, sensor housing does not exceed the wheel rim spine of tire.By this way, in normal tyre dismounting process, tube lifter all can not be interfered with sensor housing, thus can be adapted to that automatically makeup is viviparous produces line better, and can reduce to the full extent in dismounting tire process due to sensor degradation that maloperation causes.
Accompanying drawing explanation
Describe the utility model and many advantages thereof in detail below with reference to schematic figures, these schematic figures only show some nonrestrictive embodiments for illustrative purposes, wherein:
Fig. 1 shows the schematic diagram of the tire pressure monitoring sensor according to an exemplary embodiment of the present utility model;
Fig. 2 shows the decomposition view of the tire pressure monitoring sensor of Fig. 1;
Fig. 3 shows the schematic cross sectional views of a kind of exemplary connection mode of sensor housing and mouth bar;
Fig. 4 shows the schematic cross sectional view of the Hermetical connecting structure of metal mouth bar and wheel rim; With
Fig. 5 shows the enlarged view of the part of irising out with circle in Fig. 4.
Detailed description of the invention
Describe exemplary embodiment of the present utility model with reference to the accompanying drawings in detail.
The schematic diagram of the tire pressure monitoring sensor according to an exemplary embodiment of the present utility model is shown see Fig. 1-2, Fig. 1, and Fig. 2 illustrates the decomposition view of the tire pressure monitoring sensor of Fig. 1.Tire pressure monitoring sensor 1 comprises sensor housing 2, metal mouth bar 3 and nut 6, and tire pressure monitoring element etc. is arranged in described sensor housing 2.Sensor housing 2 is connected with metal mouth bar 3, and nut 6 is for being fixed to wheel rim by tire pressure monitoring sensor 1.Preferably, tire pressure monitoring sensor 1 also comprises sealing element 10, and described sealing element 10 is sleeved on mouth bar 3.The metal mouth bar 3 of tire pressure monitoring sensor 1 is connected with valve inside 7 and mouth pole cap 8.
Preferably, described sealing element 10 comprises seal ring 5 and encapsulates at least in part and compress the tightening seal washer 4 of sealing circle 5.The hermetically-sealed construction of tightening seal washer 4 and seal ring 5 will be discussed in more detail below.
Referring to Fig. 3, it illustrates the exemplary connection mode of one of sensor housing and mouth bar.As shown in the figure, sensor housing 2 comprises main housing part 21 and the metallic support 22 be connected on this main housing part 21.Metal mouth bar 3 comprise be positioned at away from one end of sensor housing 2 mouth rod body part 31 and be positioned at the mouth pole-footing portion 32 of the one end near sensor housing 2.Recess 33 is formed between mouth rod body part 31 and mouth pole-footing portion 32.The outside face of mouth rod body part 31 has outside thread, and this outside thread can match with the negative thread on nut 6.
During installation tire pressure monitoring sensor 1, metallic support 22 is inserted in recess 33, and form cambered surface with mouth pole-footing portion 32 and contact (situation that can be understood to also comprise sphere-contact), make before metal mouth bar 3 is fixed on wheel rim 9, angle adjustable between sensor housing 2 and metal mouth bar 3, its variable range is between 10 ° and 37 °.
Particularly, in the preferred embodiment shown in the drawings, the side contacted with mouth pole-footing portion 32 of metallic support 22 has arcuate shape, correspondingly, the side contacted with metallic support 22 in mouth pole-footing portion 32 also has the arcuate shape with the mating shapes of metallic support 22, make metallic support 22 and mouth pole-footing portion 32 can relative movement before fastening nut 6, thus change the angle α between metallic support 22 and mouth pole-footing portion 32.Although describe the concrete shape of the part contacted between metallic support 22 and mouth pole-footing portion 32 in the present embodiment, but it will be appreciated by persons skilled in the art that mouth pole-footing portion 32 and metallic support 22 also can have other and can form the shape matched that cambered surface contacts.
Tire pressure monitoring sensor 1 is being installed in the process on wheel rim 9, seal ring 5 and tightening seal washer 4 are sleeved in mouth rod body part 31 successively, the metallic support 22 of sensor housing 2 is inserted in the recess 33 between mouth rod body part 31 and mouth pole-footing portion 32, mouth rod body part 31 (region on the wheel rim namely Fig. 3) inside tire is inserted in the through hole 93 formed in wheel rim 9, until tightening seal washer 4 abuts the side of the flange 92 of wheel rim 9.Then, be threaded connection and nut 6 is screwed on the outside face of mouth rod body part 31, until nut 6 abuts the opposite side of the flange 92 of wheel rim 9.
By this way, on the one hand, can the cambered surface of movement relative to each other contact because metallic support 22 and mouth pole-footing portion 32 are formed, before nut 6 is tightened, angle [alpha] between sensor housing 2 and mouth bar 3 can change, therefore, can for different rim design, such as, angle [alpha] between the Diversity structure adjustment sensor housing 2 of different valve hole angles and wheel rim and mouth bar 3, the bottom surface 23 of sensor housing 2 all suitably can be supported by rim gutter bottom surface 91, namely, the bottom surface 23 of sensor housing both can not be interfered with rim gutter bottom surface 91, also comparatively wide arc gap can not be there is with rim gutter bottom surface 91.
On the other hand, after tightening nut 6, the power that screws lip-syncing bar 3 due to nut produces along the pulling force of mouth rod axis away from mouth pole-footing portion 32, and metallic support 22 is clamped between mouth rod body part 31 and mouth pole-footing portion 32, thus sensor housing 2 is fixed relative to mouth bar 3.After this is fixing, owing to fully fitting with rim gutter bottom surface 91 in the bottom surface 23 of sensor housing, and sensor housing 2 and mouth bar 3 form stable cambered surface and contact, prevent sensor housing in use to deflect, be subject to excessive load and ftracture or come off from mouth bar, thus enable this tire pressure monitoring sensor be applied to the higher speed of a motor vehicle, even and if also stable performance can be obtained under severe road conditions.
In addition, in the prior art, side seal between metal mouth bar and wheel rim is realized by the interference fit between the soft seal elastomeric material encapsulated around metal mouth bar and wheel rim hole usually, but in this case, because the magnitude of interference and gripping power affect larger by wheel rim clear size of opening (typically having a diameter from 11.5+/-0.2mm) and wheel rim wall thickness, therefore, this airtight quality is unstable.When particularly using this Seal Design on tire pressure monitoring sensor, because the parts such as the tire pressure monitoring element that holds in sensor housing and battery form eccentric mass, when wheel High Rotation Speed, the reduction of airtight quality can be accelerated, in extreme circumstances, the gas leakage of tire can even be caused.And the airtight quality between the mouth bar of tire pressure monitoring sensor and wheel rim can be improved according to " sandwich " of the present utility model formula hermetically-sealed construction.This " sandwich " formula hermetically-sealed construction is described in detail referring to Fig. 4-5.Fig. 4 illustrates the schematic diagram be tightly connected of metal mouth bar 3 and wheel rim 9, and Fig. 5 illustrates the enlarged view of the part of irising out with circle in Fig. 4.
As seen from Figure 4, mouth bar 3 adopts " sandwich " formula structure with the mode of being tightly connected of wheel rim 9, namely inside tire, use the combination of seal ring 5 and tightening seal washer 4, and outside tire, use nut 6, wheel rim 9 is sandwiched between the combination of seal ring 5 and tightening seal washer 4 and nut 6.As shown in the figure, seal ring 5 is encapsulated at least in part by tightening seal washer 4, and is compressed between tightening seal washer 4 and wheel rim 9 by predetermincd tension.
Mouth bar 3, wheel rim 9, tightening seal washer 4 and nut 6 are made by metallic material, and seal ring 5 is made by having compressible material.
Preferably, tightening seal washer 4 is made up of Steel material.
Preferably, seal ring 5 is made up of silica gel or ethylene propylene diene monomer (EPDM) material, and the advantage of described material is that ageing-resistant performance is excellent, and chemical inertness is fabulous, has excellent incompressible permanent deformation and incompressible stress relaxation ability.
Hermetically-sealed construction more specifically shown in Figure 5, as shown in the figure, tightening seal washer 4 is encapsulated seal ring 5 at least in part and is interposed between itself and wheel rim 9 by seal ring 5 together with nut 6, and the gripping power produced makes to have compressible seal ring 5 and produces certain amount of compression.
Particularly, a surface 51 of seal ring 5 contacts with mouth bar 3, and produces the amount of compression S1 along mouth bar radial direction, thus prevents, along the Leakage Gas of mouth bar axial direction, to form side seal thus.
Because metal packing washer directly contacts with metal mouth bar with alloy rim, namely, the connection of the connection of sensor self and sensor and wheel rim is metal and connects, this Joint strenght is high, higher nominal torque and screwing force can be born, thus the higher speed of a motor vehicle can be supported, avoid sensor to occur sensor housing departs from, sensor housing upset and mouth bar such as to tear at the inefficacy simultaneously, and larger afterbody housing quality can be carried, thus more chip space and battery space can be had.
In addition, by this way, interference part when seal ring is mounted is amount of compression, this amount of compression keeps constant, do not affect by external factor, as pavement loading change, ambient pressure and temperature traverse, External Force Acting etc., thus provide and better seal stability, and the seal ring damage that can prevent excessive torque (such as due to maloperation) from causing, and significantly can reduce pavement loading and be applied to fatigue load on seal ring.
More preferably, another surface 52 of seal ring 5 contacts with wheel rim 9, because the groove of tightening seal washer 4 has depth of groove S3, seal ring 5 has height S4 before being compressed, and height S4 is greater than depth of groove S3, therefore, when seal ring is installed on wheel rim 9, seal ring 5 produces the amount of compression S2 along mouth bar axial direction, thus prevents, along the Leakage Gas of mouth bar radial direction, therefore to form radial seal.In this case, have employed the compound seal mode that side seal and radial seal combine, thus compared with the sealing means of the only side seal (particularly when wheel rim wall thickness is less) of employing rubber mouth bar of the prior art, provide more failure-free sealing property.
In addition, alternatively, seal ring 5 also can have for when mounted as centering guide structure inclined-plane 53, to play centering guiding function when being installed on mouth bar 3 by seal ring 5.
Although described preferred embodiment of the present utility model, the utility model has been not limited to published embodiment.It will be appreciated by those skilled in the art that not departing from the various change and amendment done in spirit and scope of the present utility model, be all interpreted as falling into protection domain of the present utility model, real protection scope of the present utility model is defined by the claims.
Claims (10)
1. a tire pressure monitoring sensor (1), comprising:
-sensor housing (2), tire pressure monitoring element is arranged in described sensor housing (2);
-metal mouth bar (3), described metal mouth bar comprises the mouth rod body part (31) and the mouth pole-footing portion (32) of one end that is positioned near sensor housing (2) that are positioned at away from one end of sensor housing (2), and the outside face of mouth rod body part (31) has outside thread; With
-nut (6), described nut has the negative thread matched with the outside thread of mouth rod body part (31), by metal mouth bar (3) being fixed to against wheel rim (9) rotating nut (6) in the through hole (93) in wheel rim (9)
Wherein, described sensor housing comprises main housing part (21) and is connected to the metallic support (22) on this main housing part (21), recess (33) is formed between mouth rod body part (31) and mouth pole-footing portion (32), described metallic support (22) is inserted in described recess (33), and form cambered surface with mouth pole-footing portion (32) and contact, make during installation tire pressure monitoring sensor, the angle adjustable between sensor housing (2) and metal mouth bar (3).
2. tire pressure monitoring sensor according to claim 1 (1), is characterized in that, described tire pressure monitoring sensor (1) also comprises sealing element (10), and described sealing element is enclosed within mouth rod body part (31).
3. tire pressure monitoring sensor according to claim 2 (1), it is characterized in that, described sealing element (10) comprises seal ring (5) and encapsulates at least in part and compress the tightening seal washer (4) of sealing circle (5), wherein, tightening seal washer (4) is made up of metallic material, and seal ring (5) is made by having compressible material.
4. tire pressure monitoring sensor according to claim 3 (1), is characterized in that, described seal ring (5) is made up of silica gel or ethylene propylene diene monomer (EPDM) material.
5. tire pressure monitoring sensor according to claim 3 (1), is characterized in that, described tightening seal washer (4) is made up of Steel material.
6. tire pressure monitoring sensor according to claim 3 (1), is characterized in that, described seal ring (5) also have for when mounted as centering guide structure inclined-plane (53).
7. tire pressure monitoring sensor according to claim 3 (1), is characterized in that, described seal ring (5) by tightening seal washer (4) along mouth bar axially and mouth bar radial compression.
8. tire pressure monitoring sensor according to claim 1 (1), is characterized in that, the variable range of the angle between sensor housing (2) and metal mouth bar (3) is between 10 ° and 37 °.
9. tire pressure monitoring sensor according to claim 1 (1), it is characterized in that, after in the through hole (93) tire pressure monitoring sensor (1) being fixed to wheel rim (9), sensor housing (2) does not exceed the wheel rim spine of tire.
10. tire pressure monitoring sensor according to claim 1 (1), is characterized in that, the metal mouth bar (3) of tire pressure monitoring sensor (1) is connected with valve inside (7) and mouth pole cap (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758430.5U CN204249747U (en) | 2014-12-04 | 2014-12-04 | Tire pressure monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758430.5U CN204249747U (en) | 2014-12-04 | 2014-12-04 | Tire pressure monitoring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204249747U true CN204249747U (en) | 2015-04-08 |
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ID=52954088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420758430.5U Expired - Fee Related CN204249747U (en) | 2014-12-04 | 2014-12-04 | Tire pressure monitoring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204249747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774837A (en) * | 2018-07-31 | 2020-02-11 | 森萨塔科技公司 | Tire pressure monitor with variable angle mounting |
| CN112537176A (en) * | 2019-09-20 | 2021-03-23 | 大陆汽车有限公司 | Adapter, valve stem, tire parameter monitoring system and method for mounting a tire parameter monitoring system on a rim |
| CN113272159A (en) * | 2018-12-05 | 2021-08-17 | 大陆汽车有限公司 | Adapter, tire parameter monitoring system and method for mounting a tire parameter monitoring system on a wheel rim |
-
2014
- 2014-12-04 CN CN201420758430.5U patent/CN204249747U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774837A (en) * | 2018-07-31 | 2020-02-11 | 森萨塔科技公司 | Tire pressure monitor with variable angle mounting |
| CN113272159A (en) * | 2018-12-05 | 2021-08-17 | 大陆汽车有限公司 | Adapter, tire parameter monitoring system and method for mounting a tire parameter monitoring system on a wheel rim |
| CN112537176A (en) * | 2019-09-20 | 2021-03-23 | 大陆汽车有限公司 | Adapter, valve stem, tire parameter monitoring system and method for mounting a tire parameter monitoring system on a rim |
| CN112537176B (en) * | 2019-09-20 | 2022-12-20 | 大陆汽车有限公司 | Adapter, valve stem, tire parameter monitoring system and method for mounting a tire parameter monitoring system on a rim |
| US11602958B2 (en) | 2019-09-20 | 2023-03-14 | Continental Automotive Gmbh | Adapter, valve stem, tire parameter monitoring system, and method of mounting a tire parameter monitoring system onto a wheel rim |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20201204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |