CN103207044B - Pressure transmitter with waterproof ventilated membrane - Google Patents
Pressure transmitter with waterproof ventilated membrane Download PDFInfo
- Publication number
- CN103207044B CN103207044B CN201310101671.2A CN201310101671A CN103207044B CN 103207044 B CN103207044 B CN 103207044B CN 201310101671 A CN201310101671 A CN 201310101671A CN 103207044 B CN103207044 B CN 103207044B
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- head assembly
- ventilated membrane
- waterproof ventilated
- vent
- housing
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Abstract
The invention discloses a kind of pressure transmitter with waterproof ventilated membrane, the circuit board of transmitter, sensing core body etc. is placed in housing, before and after housing, two ends connect rail unit and head assembly, the head assembly end face being positioned at housing arranges the cavity of bias, pipeline in head assembly is connected with cavity bottom, the external connection blast connection of head assembly, L-shaped air-vent is set in head assembly, one end of air-vent is positioned at the sidewall of head assembly, the other end is positioned at the end face of the head assembly of housing, air-vent has groove around aperture, aperture is positioned at bottom portion of groove, tabletting is fixed in groove, the central hole of tabletting fixes waterproof ventilated membrane, L-shaped air-vent, waterproof ventilated membrane can make the gas inside and outside housing pass through, and prevent dust, water, the impurity such as oil enter.
Description
Technical field
The present invention relates to a kind of pressure transmitter.
Background technology
Pressure transmitter is the signal of telecommunication that the physical pressure parameters such as gas, the liquid load cell experienced are transformed into standard, measuring with secondary meters such as supply indicator alarm, monitor, actuators, indicate and the device of procedure regulation, general pressure transmitter is mainly made up of load cell, measuring circuit and process connector three part.
Gauge pressure formula pressure transmitter generally comprises shell of transducer, circuit board is set in housing, sensor etc., housing two ends connect rail unit, head assembly, rail unit, head assembly reconnects miscellaneous equipment, during work, air pressure in transmitter enclosure body should keep consistent with the pressure of local environment, so should communicate inside and outside housing, but dust in the gas outside transmitter, may be contained, water, the granule foreigns such as oil, these impurity can damage the circuit board in housing after entering housing, sensor etc., the most waterproof, dust-proof, grease proofing measure mainly improves the environment residing for pressure transmitter, environmental dust removal to surrounding, it is dried, this kind of measure can not fundamentally prevent impurity from entering pressure transmitter housing, it is thus desirable to design novel pressure transmitter, can thoroughly stop that impurity enters.
Summary of the invention
The technical problem to be solved is to overcome the above-mentioned deficiency of prior art to provide the pressure transmitter of a kind of waterproof and breathable, improve the head assembly of pressure transmitter, make gas inside and outside housing communicate by head assembly, and water outside stopping, dust etc. enter enclosure interior.
The present invention solves the technical scheme that the problems referred to above are used: with the pressure transmitter of waterproof ventilated membrane, the circuit board of electric transmitter, sensing core body is placed in housing, before and after housing, two ends connect rail unit and head assembly, the head assembly end face being positioned at housing arranges cavity, pipeline in head assembly is connected with cavity bottom, the external connection blast connection of head assembly, it is characterized in that: L-shaped air-vent is set in described head assembly, one end of air-vent is positioned at the sidewall of head assembly, the other end is positioned at the end face of the head assembly of housing, the air-vent aperture of end face arranges waterproof ventilated membrane.
Cavity eccentric setting in described head assembly, the aperture of air-vent is positioned at the vacant place of maximum outside eccentric cavity.
Having groove around the aperture of described air-vent, aperture is positioned at bottom portion of groove, and waterproof ventilated membrane is placed in groove.
Fixing tabletting in described groove, have centre bore in the middle of tabletting, centre bore is corresponding with the aperture of air-vent, and waterproof ventilated membrane is fixed in the centre bore of tabletting.
The described tabletting with waterproof ventilated membrane is pasted onto in groove, or when head assembly is molded, is placed in groove by the tabletting with waterproof ventilated membrane, one-body molded.
Compared with prior art, it is an advantage of the current invention that: 1, L-shaped air-vent is set in head assembly, L-shaped hole is as " breathing " passage of pressure transmitter, inside and outside connection housing, make inner and outer air pressure identical, and waterproof ventilated membrane is set at the aperture in housing, and stop that water enters housing, the most also can the impurity such as blocks dust；2, air-vent is L-shaped, can prevent the sharp object outside pressure transmitter from scratching waterproof ventilated membrane；3, placing the cavity eccentric setting of sensing core body in head assembly, neither impact accommodates sensing core body, can be again to arrange L-shaped air-vent to concede space；4, in waterproof ventilated membrane is fixed on tabletting with holes, tabletting is placed in groove again, it is to avoid occupy the space in housing, also avoids the device of inside to scratch waterproof ventilated membrane；5, with waterproof ventilated membrane tabletting paste or one-body molded with head assembly, assemble, processing technique simple.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the headset structure schematic diagram of the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the schematic diagram of the tabletting of the present invention.
In figure: 1, head assembly, 2, O RunddichtringO, 3, housing, 4, rail unit, 5, collar nut, 6, blast connection, 7, tabletting, 8, waterproof ventilated membrane, 10, cavity, 11, groove, 12, air-vent.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is further described for embodiment.
The pressure transmitter with waterproof ventilated membrane as shown in Figure 1, assembled by rail unit 4, housing 3, head assembly 1, circuit board, sensing core body etc. are set in housing 3, head assembly 1 is threadedly connected to one end of housing 3, device is sealed by O RunddichtringO 2, and the other end of head assembly relies on collar nut 5 to be connected with blast connection 6.
The structure of head assembly 1 is as shown in Figure 2 and Figure 3, the head assembly end face being positioned at housing 3 arranges cavity 10, pipeline in head assembly connects with the bottom of cavity 10, after blast connection 6 is connected to head assembly, the components and parts such as the sensing core body in housing 3 also can be contained in cavity 10, and the pipeline of head assembly 1 can penetrate circuit line etc..
For making the air pressure inside and outside housing 3 identical, L-shaped air-vent 12 is set in head assembly 1, one ventilation mouth of air-vent 12 is positioned at the lateral wall of head assembly 1, another ventilation mouth is positioned on the head assembly end face of housing, for ease of installing waterproof ventilated membrane, the end face around the ventilation mouth of air-vent 12 has circular groove 11.
As shown in Figure 4, waterproof ventilated membrane 8 is fixed in the centre bore of central authorities of annular tabletting 7, after groove 11 put into by tabletting 7, the centre bore of tabletting 7 just ventilation mouth to L-shaped air-vent 12, so, the gas inside and outside housing 3 can pass through L-shaped air-vent 12, through waterproof ventilated membrane 8, and waterproof ventilated membrane 8 blocks dust, water, oil etc. can enter housing 3, L-shaped air-vent 12 and waterproof ventilated membrane 8 can be used as " breathing " passage of pressure transmitter, simultaneously work as the effect of " filtration ".
In order to provide space to L-shaped air-vent 12, tabletting 7, cavity 10 eccentric setting in head assembly 1, the position that maximum that groove 11 is positioned at outside head assembly end face, cavity 10 is vacant.
Tabletting 7 with waterproof ventilated membrane 8 can be pasted in groove 11, complete to install.Certainly may be used without other mounting means, such as, put into tabletting when the moulding of head assembly cools down the most completely, can be one-body molded after cooling down completely.
Claims (5)
1. with the pressure transmitter of waterproof ventilated membrane, it is characterized in that: the circuit board of transmitter, sensing core body are placed in housing, before and after housing, two ends connect rail unit and head assembly, the head assembly end face being positioned at housing arranges cavity, pipeline in head assembly is connected with cavity bottom, the external connection blast connection of head assembly, L-shaped air-vent is set in described head assembly, one end of air-vent is positioned at the sidewall of head assembly, the other end is positioned at the end face of the head assembly of housing, and the air-vent aperture of end face arranges waterproof ventilated membrane;Cavity eccentric setting in described head assembly, the aperture of air-vent is positioned at the vacant place of maximum outside eccentric cavity.
Pressure transmitter with waterproof ventilated membrane the most according to claim 1, it is characterised in that: having groove around the aperture of described air-vent, aperture is positioned at bottom portion of groove, and waterproof ventilated membrane is placed in groove.
Pressure transmitter with waterproof ventilated membrane the most according to claim 2, it is characterised in that: fixing tabletting in described groove, have centre bore in the middle of tabletting, centre bore is corresponding with the aperture of air-vent, and waterproof ventilated membrane is fixed in the centre bore of tabletting.
Pressure transmitter with waterproof ventilated membrane the most according to claim 3, it is characterised in that: the tabletting with waterproof ventilated membrane is pasted onto in groove.
Pressure transmitter with waterproof ventilated membrane the most according to claim 3, it is characterised in that: during head assembly injection, the tabletting with waterproof ventilated membrane is placed in groove, one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101671.2A CN103207044B (en) | 2013-03-27 | 2013-03-27 | Pressure transmitter with waterproof ventilated membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101671.2A CN103207044B (en) | 2013-03-27 | 2013-03-27 | Pressure transmitter with waterproof ventilated membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103207044A CN103207044A (en) | 2013-07-17 |
| CN103207044B true CN103207044B (en) | 2016-09-14 |
Family
ID=48754338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310101671.2A Active CN103207044B (en) | 2013-03-27 | 2013-03-27 | Pressure transmitter with waterproof ventilated membrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN103207044B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389180B (en) * | 2013-08-20 | 2015-08-12 | 蚌埠日月电子科技有限责任公司 | Pressure unit |
| CN104984852A (en) * | 2015-07-17 | 2015-10-21 | 苏州金威特工具有限公司 | Electric sprayer nozzle |
| CN104984853A (en) * | 2015-07-17 | 2015-10-21 | 苏州金威特工具有限公司 | Electric sprayer nozzle |
| CN104984851A (en) * | 2015-07-17 | 2015-10-21 | 苏州金威特工具有限公司 | Electric sprayer nozzle |
| CN105319002A (en) * | 2015-11-27 | 2016-02-10 | 上海立格仪表有限公司 | Natural ventilation pressure measuring instrument |
| CN105547567A (en) * | 2015-12-09 | 2016-05-04 | 中国电子科技集团公司第四十八研究所 | Gauge age pressure sensor |
| CN106568318A (en) * | 2016-11-14 | 2017-04-19 | 国网天津市电力公司 | Rapid water removing device for pressure transmitter |
| CN108662228B (en) * | 2018-04-19 | 2019-11-29 | 深圳市华讯方舟微电子科技有限公司 | Semi-submersible type waterproof vent valve |
| CN110658302A (en) * | 2018-06-28 | 2020-01-07 | 大陆汽车电子(长春)有限公司 | Nitrogen oxygen sensor and shell with waterproof and breathable structure |
| CN110672256A (en) * | 2019-09-12 | 2020-01-10 | 西安中星测控有限公司 | Connector assembly for pressure transmitter |
| DE112019007824T5 (en) * | 2019-10-16 | 2022-06-30 | Mitsubishi Electric Corporation | Electrical equipment device |
| CN111664158B (en) * | 2020-06-08 | 2021-07-13 | 麦克传感器股份有限公司 | Thread fixing quick connector and method for connecting quick connector and transmitter |
| CN111707408B (en) * | 2020-07-08 | 2021-10-29 | 宁波中车时代传感技术有限公司 | Sputtering film pressure transmitter |
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| CN2921803Y (en) * | 2006-07-12 | 2007-07-11 | 宁波南车时代传感技术有限公司 | Pressure transmitter |
| CN201340320Y (en) * | 2008-11-07 | 2009-11-04 | 株洲南车时代电气股份有限公司 | Vehicle pressure sensor |
| CN201348551Y (en) * | 2009-01-09 | 2009-11-18 | 哈尔滨东安汽车发动机制造有限公司 | Waterproof structure of engine oil pressure sensor |
| CN201548369U (en) * | 2009-10-29 | 2010-08-11 | 株洲南车时代电气股份有限公司 | Pressure transmitter of waterproof locomotive |
| CN201672953U (en) * | 2010-04-29 | 2010-12-15 | 麦克传感器有限公司 | Novel special terminal box for liquid-level pressure transmitter |
| CN202693195U (en) * | 2012-07-11 | 2013-01-23 | 浙江三花股份有限公司 | Pressure sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012212093A (en) * | 2011-03-23 | 2012-11-01 | Panasonic Corp | Electronic device and imaging device |
| CN202696103U (en) * | 2012-04-13 | 2013-01-23 | 广州市双浚电气设备有限公司 | Waterproof cable joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2921803Y (en) * | 2006-07-12 | 2007-07-11 | 宁波南车时代传感技术有限公司 | Pressure transmitter |
| CN201340320Y (en) * | 2008-11-07 | 2009-11-04 | 株洲南车时代电气股份有限公司 | Vehicle pressure sensor |
| CN201348551Y (en) * | 2009-01-09 | 2009-11-18 | 哈尔滨东安汽车发动机制造有限公司 | Waterproof structure of engine oil pressure sensor |
| CN201548369U (en) * | 2009-10-29 | 2010-08-11 | 株洲南车时代电气股份有限公司 | Pressure transmitter of waterproof locomotive |
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| CN202693195U (en) * | 2012-07-11 | 2013-01-23 | 浙江三花股份有限公司 | Pressure sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103207044A (en) | 2013-07-17 |
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| C14 | Grant of patent or utility model | ||
| CB02 | Change of applicant information |
Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road Applicant after: ZHUZHOU CRRC TIMES ELECTRIC CO., LTD. Applicant after: NINGBO CRRC TIMES SENSING TECHNOLOGY CO., LTD. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road Applicant before: Zhuzhou CSR Times Electric Co., Ltd. Applicant before: Ningbo CSR Times Transducer Technique Co., Ltd. |
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