CN105043658A - Pressure sensor used in air conditioner - Google Patents
Pressure sensor used in air conditioner Download PDFInfo
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- CN105043658A CN105043658A CN201510342862.7A CN201510342862A CN105043658A CN 105043658 A CN105043658 A CN 105043658A CN 201510342862 A CN201510342862 A CN 201510342862A CN 105043658 A CN105043658 A CN 105043658A
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- connector
- insulation sleeve
- shell
- shielding case
- plane
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Abstract
A pressure sensor used in an air conditioner comprises a connector, a connector sealing ring, a circuit board assembly, a shielding case, a separation plate, a pressure core body, an insulation sleeve and a shell. The shell is divided into upper and lower portions. The upper portion is a cavity and the lower portion is connected to a joint of a using place. The upper portion and the lower portion are separated by an insulation sleeve placing plane. A through hole connected to an external using place is arranged on the insulation sleeve placing plane. The shielding case is provided with an inner cavity. A step is arranged in the inner cavity. The separation plate is placed below the step of the inner cavity of the shielding case and is limited by the step. The pressure core body is placed in the inner cavity of the shielding case below the separation plate. A bottom of the insulation sleeve is provided with a plane used for placing the shielding case. The plane is provided with the through hole. The through hole is connected to an internal channel of the joint of the shell. The insulation sleeve sleeves the shielding case. An upper portion of the insulation sleeve is connected to a lower portion of the connector and then the whole insulation sleeve is put into the cavity of the upper portion of the shell. An outer edge of the upper portion of the shell fastens a lower portion of the connector. The circuit board assembly is fixed to a bottom plane of the connector and enters into the inner cavity of the shielding case.
Description
Technical field
The present invention relates to a kind of pressure transducer, particularly a kind of pressure transducer being applicable to air-conditioning.
Background technology
Existing idle call pressure sensor structure as shown in Figure 1, comprises connector 11, flexible circuitry board component 12, ceramic capacitive pressure core body 13, stainless steel case 14, insulating paper 15, sealing 1 pad 6, backup ring 17, O RunddichtringO 18, shell 19.Pressure medium enters sensor internal by aperture on shell 19, act on ceramic capacitive pressure core body 13 through aperture on stainless steel case 14, pressure is converted into electric signal transmission to flexible circuitry board component 12 by ceramic capacitive pressure core body 13, after flexible circuitry board component 12 signal transacting, pressure signal is externally exported by connector 11.
Above-mentioned pressure transducer has the following disadvantages:
1) anti-electromagnetic interference capability is weak, does not form the individually shielded space to signal processing circuit.
2) withstand voltage design is weak, and intermediate insulating layer is paper material, and reliability is obviously not enough.
3) sealed interface reliability is low, and sealed interface tapering and pipeline top connection taper fit easily occur deviation, and dismounting is once difficult to ensure again to seal afterwards.
4) pressure core needs two seals, affects medium-tight reliability.
5) outside gluing sealing, easily there is seal failure in complex procedures and unreliable in the presence of a harsh environment.
Summary of the invention
Technical matters to be solved by this invention be overcome prior art above-mentioned deficiency and a kind of idle call pressure transducer is provided, its assembling is convenient, anti-electromagnetic interference capability is stronger.
The present invention solves the problems of the technologies described above adopted technical scheme:
Idle call pressure transducer, comprises connector, connector sealing ring, circuit board module, shielding case, dividing plate, pressure core, insulation sleeve, shell; Shell divides upper and lower two parts, top is divided into the cavity of housing insulation cover and connector, lower part arranges the connector connecting field of employment, and upper part and lower part are separated by insulation sleeve holding plane, insulation sleeve holding plane is also arranged the through hole communicated with outside field of employment; Described shielding case establishes inner chamber, arranges step in inner chamber, and dividing plate is put into below the step of shielding case inner chamber, and spacing by step, and pressure core is placed in the inner chamber of the shielding case under dividing plate; Establish the plane of placing shielding case bottom described insulation sleeve, plane also arranges passage, and passage communicates with the inner passage of the connector of shell; Described insulation sleeve is enclosed within outside shielding case, and after insulation sleeve top is connected with connector bottom, entirety puts into the upper part cavity of shell, and fastens connector bottom by shell upper outer rim; Described circuit board module is fixed on the baseplane of connector, and enters in shielding case inner chamber.
Better, above-mentioned insulation sleeve is placed on the insulation sleeve holding plane of shell, and by plug washer to sealing.
Better, above-mentioned connector lower, outer perimeter also arranges groove, and connector sealing ring is placed wherein, thus hermetically sealed connector bottom and shell better.
Better, above-mentioned outer casing underpart interface sealing contact surface is cambered surface, if the sealing cone machining angle of pipe joint has deviation also can adapt to very well, and actual sealing contact surface is larger.
Compared with prior art, the invention has the advantages that:
Anti-electromagnetic interference capability is strong: due to outside the dual shield effect of shell and shielding case, and produce radome effect together with dividing plate, define good electromagnetic protection to circuit board module.And the effect that dividing plate has stress relief ring and wire dividing plate concurrently can prevent core body wire from encountering core body sensing surface simultaneously.
Voltage endurance capability is high: insulation sleeve separates shielding case and shell, forms reliable insulation course and insulating space.
Collapse resistance pressure capability is strong: concerning structural failure pressure, power pipeline is pressure core, dividing plate, shielding case, connector, shell, this series parts has taken into account high strength and light-weighted requirement in structure, with last to shell rolling, and common guarantee overall construction intensity.
Compact conformation: connector, as while electric interfaces, is also stress members and seal structural part; Dividing plate is a part for radome, has the effect of stress relief ring and dividing plate concurrently simultaneously; Shielding case, while generation shielding action, is also power conducting structure part; Insulation sleeve has the effect of Sealing shield ring concurrently.Therefore, in narrow and small structure, achieve high withstand voltage, stronger anti-electromagnetic interference capability and sound construction is reliable, assembling is simple simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing sensor.
Fig. 2 is the front view of embodiment of the present invention idle call pressure transducer.
Fig. 3 is the explosive view of embodiment of the present invention idle call pressure transducer.
Fig. 4 is the structural representation of embodiment of the present invention idle call pressure transducer.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described.
As shown in Figure 2,3, 4, idle call pressure transducer, comprises three core packard connectors 1, connector sealing ring 2, circuit board module 3, shielding case 4, dividing plate 5, pressure core 6, insulation sleeve 7, plug washer 8, shell 9.
Shell about 9 points two parts, top is divided into the cavity 91 of housing insulation cover 7 and three core packard connectors 1, lower part arranges the connector 92 connecting field of employment, upper part and lower part are separated by insulation sleeve holding plane 93, insulation sleeve holding plane 93 are also arranged the through hole 94 communicated with outside field of employment.
The interface sealing contact surface of above-mentioned connector 92 is cambered surface 96, if the sealing cone machining angle of the pipe joint of field of employment has deviation also can adapt to very well like this, and actual sealing contact surface is larger.
Above-mentioned shielding case 4 establishes inner chamber 45, arranges step 41 in inner chamber, and dividing plate 5 is put into below the step 41 of shielding case 4 inner chamber 45, and spacing by step 41, and pressure core 6 is placed in the inner chamber 45 of the shielding case 4 under dividing plate 5.
Above-mentioned insulation sleeve 7 is also cylindrical, and the plane 71 of placing shielding case 4 is established in bottom, and plane also arranges passage 72, and passage 72 communicates with the inner passage 94 of the connector 92 of shell 9.
Above-mentioned insulation sleeve 7 is enclosed within outside shielding case 4, and after insulation sleeve 7 top is connected with three core packard connector 1 bottoms, entirety puts into the upper part cavity 91 of shell 9, and fastens connector 1 bottom by shell 9 top outer rim 95.
Above-mentioned insulation sleeve 7 is placed on the insulation sleeve holding plane 93 of shell 9, and seals by between plug washer 8 pairs of pressure core 6 and shell 9.
Above-mentioned circuit board module 3 is fixed on the baseplane 15 of three core packard connectors 1, and enters in shielding case 4 inner chamber 45, by shell 1, shielding case 4 dual shield, can be insulated again by insulation sleeve 7 like this.
Above-mentioned insulation sleeve 7 upper end is enclosed within three core packard connector 1 lower, outer perimeter, and this spline structure is tightr, and insulation effect is better.
Above-mentioned connector 1 lower, outer perimeter also arranges groove 13, and connector sealing ring 2 is placed wherein, thus hermetically sealed connector 1 bottom and shell 9 better.
As shown in Figure 3, the installation process of idle call pressure transducer is as follows: connector sealing ring 2 loads in the groove 13 on three core packard connectors 1, wire in pressure core 6 is through after dividing plate 5, overall loading shielding case 4, wire welds with circuit board module 3 again, then circuit board module 3 is welded on three core packard connectors 1, insulation sleeve 7 is enclosed within outside shielding case 4, and with three core packard connectors 1 assemble formed one, then place plug washer 8 in core body face, load shell 9, carry out rolling process to shell 9 actinal surface 95, assembling product completes.
Claims (5)
1. idle call pressure transducer, is characterized in that: comprise connector, connector sealing ring, circuit board module, shielding case, dividing plate, pressure core, insulation sleeve, shell; Shell divides upper and lower two parts, top is divided into the cavity of housing insulation cover and connector, lower part arranges the connector connecting field of employment, and upper part and lower part are separated by insulation sleeve holding plane, insulation sleeve holding plane is also arranged the through hole communicated with outside field of employment; Described shielding case establishes inner chamber, arranges step in inner chamber, and dividing plate is put into below the step of shielding case inner chamber, and spacing by step, and pressure core is placed in the inner chamber of the shielding case under dividing plate; Establish the plane of placing shielding case bottom described insulation sleeve, plane also arranges through hole, and through hole communicates with the inner passage of the connector of shell; Described insulation sleeve is enclosed within outside shielding case, and after insulation sleeve top is connected with connector bottom, entirety puts into the upper part cavity of shell, and fastens connector bottom by shell upper outer rim; Described circuit board module is fixed on the baseplane of connector, and enters in shielding case inner chamber.
2. idle call pressure transducer as claimed in claim 1, is characterized in that: described insulation sleeve is placed on the insulation sleeve holding plane of shell, and by plug washer to sealing.
3. idle call pressure transducer as claimed in claim 1 or 2, is characterized in that: described connector lower, outer perimeter also arranges groove, and connector sealing ring is placed wherein, hermetically sealed connector bottom and shell.
4. idle call pressure transducer as claimed in claim 1 or 2, is characterized in that: described outer casing underpart interface sealing contact surface is cambered surface.
5. idle call pressure transducer as claimed in claim 1 or 2, is characterized in that: described insulation sleeve top is enclosed within lower, outer perimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342862.7A CN105043658A (en) | 2015-06-19 | 2015-06-19 | Pressure sensor used in air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342862.7A CN105043658A (en) | 2015-06-19 | 2015-06-19 | Pressure sensor used in air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105043658A true CN105043658A (en) | 2015-11-11 |
Family
ID=54450377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510342862.7A Pending CN105043658A (en) | 2015-06-19 | 2015-06-19 | Pressure sensor used in air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105043658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072480A (en) * | 2016-11-11 | 2018-05-25 | 浙江三花制冷集团有限公司 | Pressure sensor |
| GB2563734A (en) * | 2017-05-30 | 2018-12-26 | Sensata Technologies Inc | Washer fixation method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614375A (en) * | 2003-11-03 | 2005-05-11 | 得州仪器公司 | Capacitive pressure transducer |
| CN1667388A (en) * | 2004-03-11 | 2005-09-14 | 株式会社电装 | Gas pressure sensor |
| JP2006078417A (en) * | 2004-09-13 | 2006-03-23 | Toyoda Mach Works Ltd | Pressure sensor |
| CN102840871A (en) * | 2011-06-23 | 2012-12-26 | 横河电机株式会社 | Sensor unit |
| CN103411726A (en) * | 2013-07-26 | 2013-11-27 | 上海俊乐制冷自控元件有限公司 | Pressure transmitter |
| CN203595567U (en) * | 2013-12-04 | 2014-05-14 | 丁立新 | Pressure transmitter resistant to electromagnetic interference |
| CN203811316U (en) * | 2014-01-23 | 2014-09-03 | 森萨塔科技（常州）有限公司 | Pressure sensor |
-
2015
- 2015-06-19 CN CN201510342862.7A patent/CN105043658A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614375A (en) * | 2003-11-03 | 2005-05-11 | 得州仪器公司 | Capacitive pressure transducer |
| CN1667388A (en) * | 2004-03-11 | 2005-09-14 | 株式会社电装 | Gas pressure sensor |
| JP2006078417A (en) * | 2004-09-13 | 2006-03-23 | Toyoda Mach Works Ltd | Pressure sensor |
| CN102840871A (en) * | 2011-06-23 | 2012-12-26 | 横河电机株式会社 | Sensor unit |
| CN103411726A (en) * | 2013-07-26 | 2013-11-27 | 上海俊乐制冷自控元件有限公司 | Pressure transmitter |
| CN203595567U (en) * | 2013-12-04 | 2014-05-14 | 丁立新 | Pressure transmitter resistant to electromagnetic interference |
| CN203811316U (en) * | 2014-01-23 | 2014-09-03 | 森萨塔科技（常州）有限公司 | Pressure sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072480A (en) * | 2016-11-11 | 2018-05-25 | 浙江三花制冷集团有限公司 | Pressure sensor |
| GB2563734A (en) * | 2017-05-30 | 2018-12-26 | Sensata Technologies Inc | Washer fixation method and system |
| GB2563734B (en) * | 2017-05-30 | 2020-01-01 | Sensata Technologies Inc | Washer fixation method and system |
| US10605297B2 (en) | 2017-05-30 | 2020-03-31 | Sensata Technologies , Inc. | Washer fixation method and system |
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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 | ||
| CB02 | Change of applicant information |
Address after: 315021 Zhejiang Province, Ningbo Jiangbei District Yongjiang Industrial Park No. 138 vibration Yonglu Applicant after: NINGBO CRRC TIMES SENSING TECHNOLOGY CO., LTD. Address before: 315021 Zhejiang Province, Ningbo Jiangbei District Yongjiang Industrial Park No. 138 vibration Yonglu Applicant before: Ningbo CSR Times Transducer Technique Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
|
| RJ01 | Rejection of invention patent application after publication |