CN103207044A - Pressure transmitter with waterproof and ventilating membrane - Google Patents
Pressure transmitter with waterproof and ventilating membrane Download PDFInfo
- Publication number
- CN103207044A CN103207044A CN2013101016712A CN201310101671A CN103207044A CN 103207044 A CN103207044 A CN 103207044A CN 2013101016712 A CN2013101016712 A CN 2013101016712A CN 201310101671 A CN201310101671 A CN 201310101671A CN 103207044 A CN103207044 A CN 103207044A
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- head assembly
- ventilated membrane
- waterproof ventilated
- groove
- housing
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Abstract
The invention discloses a pressure transmitter with a waterproof and ventilating membrane. A circuit board of the transmitter, a sensing core body and the like are arranged in a casing, the front end and the rear end of the casing are connected with a tail assembly and a head assembly, an eccentric cavity is arranged in the end face of the head assembly in the casing, a pipeline in the head assembly is communicated with the bottom of the cavity, the outer part of the head assembly is connected with an air hose connector, an L-shaped ventilating hole is arranged in the head assembly, one end of the ventilating hole is arranged on the lateral wall of the head assembly, the other end of the ventilating hole is arranged on the end face of the head assembly in the casing, a groove is arranged on the periphery of the opening of the ventilating hole, the opening is arranged at the bottom of the groove, a pressing sheet is fixed in the groove, the waterproof and ventilating membrane is fixed on a central hole portion of the pressing sheet, air inside and outside can pass through the L-shaped ventilating hole and the waterproof and ventilating membrane, and impurities of dust, water, oil and the like can be blocked.
Description
Technical field
The present invention relates to a kind of pressure unit.
Background technology
Pressure unit is the electric signal that physical pressure parameters such as gas that load cell is experienced, liquid are transformed into standard, the device that secondary instruments such as indicator alarm, registering instrument, regulator are measured to supply with, indication and process are regulated, general pressure unit mainly is made up of load cell, metering circuit and process web member three parts.
Gauge pressure formula pressure unit generally comprises the transmitter housing, circuit board is set in the housing, sensor etc., the housing two ends connect rail unit, head assembly, rail unit, head assembly connects miscellaneous equipment again, during work, air pressure in the transmitter housing should be consistent with the pressure of environment of living in, so should communicate inside and outside the housing, yet may contain dust in the gas outside the transmitter, water, the wet goods granule foreign, these impurity can damage the interior circuit board of housing after entering housing, sensor etc., present waterproof, dustproof, grease proofing measure mainly is to improve the residing environment of pressure unit, to environmental dust removal on every side, drying etc., this class measure can not prevent fundamentally that impurity from entering the pressure unit housing, therefore needs the novel pressure unit of design, can stop thoroughly that impurity enters.
Summary of the invention
Technical matters to be solved by this invention is to overcome the above-mentioned deficiency of prior art and pressure unit that a kind of waterproof and breathable is provided, improve the head assembly of pressure unit, gas communicates inside and outside making housing by head assembly, and can stop that outside water, dust etc. enter enclosure interior.
The present invention addresses the above problem the technical scheme that adopts: the pressure unit that has waterproof ventilated membrane, the circuit board of electric transmitter, the sensing core body places in the housing, the rear and front end of housing connects rail unit and head assembly, the head assembly end face that is positioned at housing arranges cavity, pipeline in the head assembly and cavity bottom are connected, the outside of head assembly connects blast connection, it is characterized in that: L shaped bleeder vent is set in the described head assembly, one end of bleeder 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 bleeder vent aperture of end face arranges waterproof ventilated membrane.
Cavity in the described head assembly is eccentric to be arranged, and the aperture of bleeder vent is positioned at the outer maximum vacant place of eccentric cavity.
Have groove around the aperture of described bleeder vent, the aperture is positioned at bottom portion of groove, and waterproof ventilated membrane places in the groove.
The interior fixedly compressing tablet of described groove has center pit in the middle of the compressing tablet, and center pit is corresponding with the aperture of bleeder vent, and waterproof ventilated membrane is fixed in the center pit of compressing tablet.
The described compressing tablet that has waterproof ventilated membrane sticks in the groove, and perhaps when the head assembly injection moulding, the compressing tablet that will have waterproof ventilated membrane places in the groove, and is one-body molded.
Compared with prior art, the invention has the advantages that: 1, L shaped bleeder vent is set in the head assembly, L shaped hole is as " breathing " passage of pressure unit, be communicated with inside and outside the housing, make inner and outer air pressure identical, and the aperture in housing place arranges waterproof ventilated membrane, and block water enters housing, but also impurity such as blocks dust certainly; 2, bleeder vent is L-shaped, can prevent that the sharp object of pressure unit outside from scratching waterproof ventilated membrane; 3, place eccentric setting of cavity of sensing core body in the head assembly, neither the sensing core body is held in influence, can be again L shaped bleeder vent is set abdicates the space; 4, waterproof ventilated membrane is fixed in the compressing tablet with holes, and compressing tablet places in the groove again, avoids occupying the space in the housing, also avoids inner device to scratch waterproof ventilated membrane; 5, the compressing tablet that has a waterproof ventilated membrane is pasted or is one-body molded with head assembly, and assembling, processing technology are simple.
Description of drawings
Fig. 1 is one-piece construction synoptic diagram of the present invention.
Fig. 2 is headset structure synoptic diagram of the present invention.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the synoptic diagram of compressing tablet of the present invention.
Among the figure: 1, head assembly, 2, the O RunddichtringO, 3, housing, 4, rail unit, 5, collar nut, 6, blast connection, 7, compressing tablet, 8, waterproof ventilated membrane, 10, cavity, 11, groove, 12, bleeder vent.
Embodiment
The present invention is further described below in conjunction with accompanying drawing, embodiment.
The pressure unit that has waterproof ventilated membrane as shown in Figure 1, by rail unit 4, housing 3, head assembly 1 assembling, circuit board, sensing core body etc. are set in the housing 3, head assembly 1 is threadedly connected to an end of housing 3, device is by 2 sealings of O RunddichtringO, 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 such as Fig. 2, shown in Figure 3, the head assembly end face that is positioned at housing 3 arranges cavity 10, pipeline in the head assembly is communicated with the bottom of cavity 10, after blast connection 6 is connected head assembly, components and parts such as sensing core body in the housing 3 also can be contained in the cavity 10, and the pipeline of head assembly 1 can penetrate circuit line etc.
For making the inside and outside air pressure of housing 3 identical, L shaped bleeder vent 12 is set in head assembly 1, a ventilation mouth of bleeder 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 waterproof ventilated membrane is installed, the end face around the ventilation mouth of bleeder vent 12 has circular groove 11.
As shown in Figure 4, waterproof ventilated membrane 8 is fixed in the center pit of central authorities of annular compressing tablet 7, after compressing tablet 7 is put into groove 11, the center pit of compressing tablet 7 is over against the ventilation mouth of L shaped bleeder vent 12, like this, the inside and outside gas of housing 3 can be by L shaped bleeder vent 12, pass waterproof ventilated membrane 8, but and waterproof ventilated membrane 8 blocks dust, water, wet goods enter housing 3, L shaped bleeder vent 12 and waterproof ventilated membrane 8 namely can be used as " breathing " passage of pressure unit, play the effect of " filtration " simultaneously.
For the space being provided for L shaped bleeder vent 12, compressing tablet 7, cavity 10 off-centre in the head assembly 1 arrange, and groove 11 is positioned at the maximum vacant position outside head assembly end face, the cavity 10.
The compressing tablet 7 that has waterproof ventilated membrane 8 can be pasted in the groove 11, finish installation.Certainly also can adopt other mounting means, for example when the moulding of head assembly cools off fully, not put into compressing tablet, can be one-body molded after treating to cool off fully.
Claims (6)
1. the pressure unit that has waterproof ventilated membrane, it is characterized in that: the circuit board of transmitter, sensing core body place in the housing, the rear and front end of housing connects rail unit and head assembly, the head assembly end face that is positioned at housing arranges cavity, pipeline in the head assembly and cavity bottom are connected, the outside of head assembly connects blast connection, L shaped bleeder vent is set in the described head assembly, one end of bleeder 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 bleeder vent aperture of end face arranges waterproof ventilated membrane.
2. the pressure unit that has waterproof ventilated membrane according to claim 1 is characterized in that: the cavity in the described head assembly is eccentric to be arranged, and the aperture of bleeder vent is positioned at the outer maximum vacant place of eccentric cavity.
3. the pressure unit that has waterproof ventilated membrane according to claim 1 and 2 is characterized in that: have groove around the aperture of described bleeder vent, the aperture is positioned at bottom portion of groove, and waterproof ventilated membrane places in the groove.
4. the pressure unit that has waterproof ventilated membrane according to claim 3 is characterized in that: fixing compressing tablet in the described groove, and the compressing tablet centre has center pit, and center pit is corresponding with the aperture of bleeder vent, and waterproof ventilated membrane is fixed in the center pit of compressing tablet.
5. the pressure unit that has waterproof ventilated membrane according to claim 4, it is characterized in that: the described compressing tablet that has waterproof ventilated membrane sticks in the groove.
6. the pressure unit that has waterproof ventilated membrane according to claim 4, it is characterized in that: during the head assembly injection moulding, the compressing tablet that will have waterproof ventilated membrane places in the groove, and is 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 true CN103207044A (en) | 2013-07-17 |
| CN103207044B CN103207044B (en) | 2016-09-14 |
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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) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389180A (en) * | 2013-08-20 | 2013-11-13 | 蚌埠日月电子科技有限责任公司 | Pressure transmitter |
| 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 |
| CN104984852A (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 |
| CN108398203A (en) * | 2018-05-14 | 2018-08-14 | 苏州名列膜材料有限公司 | A kind of blocking solution test device and blocking solution test system |
| CN108662228A (en) * | 2018-04-19 | 2018-10-16 | 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 |
| CN111664158A (en) * | 2020-06-08 | 2020-09-15 | 麦克传感器股份有限公司 | Thread fixing quick connector and method for connecting quick connector and transmitter |
| CN111707408A (en) * | 2020-07-08 | 2020-09-25 | 宁波中车时代传感技术有限公司 | Sputtering film pressure transmitter |
| CN114503793A (en) * | 2019-10-16 | 2022-05-13 | 三菱电机株式会社 | Electrical equipment device |
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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 |
| US20120243854A1 (en) * | 2011-03-23 | 2012-09-27 | Panasonic Corporation | 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 |
| CN202693195U (en) * | 2012-07-11 | 2013-01-23 | 浙江三花股份有限公司 | Pressure sensor |
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2013
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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 |
| US20120243854A1 (en) * | 2011-03-23 | 2012-09-27 | Panasonic Corporation | 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 |
| CN202693195U (en) * | 2012-07-11 | 2013-01-23 | 浙江三花股份有限公司 | Pressure sensor |
Cited By (18)
| 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 |
| CN103389180A (en) * | 2013-08-20 | 2013-11-13 | 蚌埠日月电子科技有限责任公司 | Pressure transmitter |
| 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 |
| CN104984852A (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 |
| CN108662228A (en) * | 2018-04-19 | 2018-10-16 | 深圳市华讯方舟微电子科技有限公司 | Semi-submersible type waterproof vent valve |
| CN108398203A (en) * | 2018-05-14 | 2018-08-14 | 苏州名列膜材料有限公司 | A kind of blocking solution test device and blocking solution test system |
| CN108398203B (en) * | 2018-05-14 | 2024-06-04 | 苏州名列膜材料有限公司 | Liquid resistance testing device and liquid resistance testing system |
| 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 |
| CN114503793A (en) * | 2019-10-16 | 2022-05-13 | 三菱电机株式会社 | Electrical equipment device |
| CN114503793B (en) * | 2019-10-16 | 2023-11-14 | 三菱电机株式会社 | Electrical equipment device |
| CN111664158A (en) * | 2020-06-08 | 2020-09-15 | 麦克传感器股份有限公司 | Thread fixing quick connector and method for connecting quick connector and transmitter |
| 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 |
| CN111707408A (en) * | 2020-07-08 | 2020-09-25 | 宁波中车时代传感技术有限公司 | Sputtering film pressure transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103207044B (en) | 2016-09-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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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| COR | Change of bibliographic data | ||
| GR01 | Patent grant |