CN203385509U - Antifreezing packaging for ceramic pressure sensor - Google Patents
Antifreezing packaging for ceramic pressure sensor Download PDFInfo
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- CN203385509U CN203385509U CN201320338329.XU CN201320338329U CN203385509U CN 203385509 U CN203385509 U CN 203385509U CN 201320338329 U CN201320338329 U CN 201320338329U CN 203385509 U CN203385509 U CN 203385509U
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- pressure sensor
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Abstract
The utility model discloses an antifreezing packaging for a ceramic pressure sensor. The antifreezing packaging comprises a hydraulic interface, a packaging housing, rubber rings, a circuit chip, a packaging cover, a ceramic core body and sealing rings, wherein the hydraulic interface is connected with the packaging housing, the inner side of the hydraulic interface is connected with the rubber rings, and the hydraulic interface is connected with the ceramic core body through the sealing rings; and the rubber rings are connected between the ceramic core body and the packaging cover, the ceramic core body are in fixed mechanical connection with the circuit chip, and the packaging housing is connected with the packaging cover. With the antifreezing packaging for the ceramic pressure sensor, through optimization combination in the structure aspect, certain degree anti-freezing and solidification volume expansion capabilities of the sensor are achieved, the disadvantage that volume expansion resistant capability of the ceramic pressure sensor is weak is overcome, and viability of the ceramic pressure sensor in an extremely bad condition is effectively increased.
Description
Technical field
The utility model relates to sensor technical field, particularly relates to a kind of freeze proof ceramic pressure sensor encapsulation.
Background technology
Ceramic pressure sensor is to adopt special ceramic material, through the refining pressure drag type pressure sensor formed of special process.Stupalith has anti-strong corrosion, and to the temperature rapid heat dissipation, elasticity is very good, and insulativity is very good, and the ceramic pressure sensor therefore processed has special high-performance.The ceramic sensor element of high-performance, low price will be the developing direction of pressure transducer.Increasing user uses ceramic pressure sensor to substitute other type pressure sensor and traditional mechanical elasticity body pressure original papers such as diffuse si.Ceramic pressure sensor is widely used in: equipment control, servo-valve and transmission, chemicals and the various fields such as chemical industry and medical instrument such as water pump, diesel engine, air compressor machine, refrigeration machine, ink jet numbering machine, water heater and wall-hung boiler.
Ceramic pressure sensor is be widely used in each field a kind of for measuring a kind of sensing element of fluid media (medium), but due to working environment and the impact of other factor, in some cases, metamorphosis can occur in measuring media, as frozen or solidifying etc., and cause integral body or local volume expansion, exceed the sensor tolerance range and produce infringement and lost efficacy.
The utility model content
Technical problem to be solved in the utility model is that a kind of anti-freezing or ceramic pressure sensor that the medium coagulated volume expands proposed for above-mentioned prior art defect encapsulates.
The utility model requires the technical matters solved to be achieved through the following technical solutions:
A kind of freeze proof ceramic pressure sensor encapsulation, comprise fluid power interface, encapsulating shell, rubber ring, circuit chip, cap, ceramic core body and O-ring seal, described fluid power interface is connected with encapsulating shell, the inboard of fluid power interface is connected with rubber ring, the fluid power interface is connected by O-ring seal with ceramic core body, be connected with rubber ring between described ceramic core body and cap, ceramic core body is connected with the circuit chip solid mechanical, and described encapsulating shell is connected with cap.
Described fluid power interface and encapsulating shell are metal material or plastic material, and the fluid power interface is connected for rigidly fixing with encapsulating shell.
Described encapsulating shell and cap are for being rigidly connected or floating connection.
The cylindrical rubber circle is equipped with in described fluid power interface inboard, and fluid power interface and rubber ring are connected.
Between described ceramic core body and cap, annular rubber ring is housed, circuit chip and ceramic core body are fixed mechanical connection, pottery core body, circuit chip and rubber ring form a space, in the Ci space, solid mechanical coupling part of circuit chip and ceramic core body, described ceramic core body, cap are connected with the rubber ring fitted seal.
Described ceramic core body is that fitted seal is connected with O-ring seal.
The utility model beneficial effect is: a kind of freeze proof ceramic pressure sensor encapsulation, optimal combination by configuration aspects, the freezing that sensor is acquired a certain degree, coagulated volume swelling capacity, overcome the shortcoming of the long-pending swelling capacity fragility of ceramic pressure sensor antibody, effectively improved the viability of ceramic pressure sensor under this special type mal-condition.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described further:
Fig. 1 is the utility model ceramic pressure sensor encapsulation sectional view.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Describe the utility model in detail below with reference to Fig. 1, the utility model mainly includes: fluid power interface 1, encapsulating shell 2, rubber ring 3, circuit chip 4, cap 5, ceramic core body 6, O-ring seal 7, rubber ring 8, space 9,11He space, 10, space, space 12.Described fluid power interface 1 is all metal material with encapsulating shell 2, and both are for rigidly fixing connection, and cylindrical rubber circle 8 is equipped with in the inboard of fluid power interface, and fluid power interface 1 and rubber ring 8 are for being connected.Be connected with annular rubber ring 3 between described ceramic core body 6 and cap 5, pottery core body and circuit chip 4 are fixed mechanical connection, the inner space 12 that forms of pottery core body 6, rubber ring 3 and circuit chip 4, the solid mechanical coupling part of pottery core body and circuit chip is in space 12, and ceramic core body, cap are connected with the rubber ring fitted seal.Encapsulating shell 2 and cap 5 are for being rigidly connected or floating connection.Pottery core body 6 and 1, fluid power interface are equipped with a grommet type seals 7, and ceramic core body 6, fluid power interface 1 and O-ring seal 7 are connected for fitted seal.
Ceramic pressure sensor inside comprises 4 spaces: rubber ring 8 inner spaces 9, the space 10 that fluid power interface 1 and ceramic core body form, the space 11 that cap 2 and ceramic core body 6 form, and the space 12 of ceramic core body 6, rubber ring 3 and circuit chip 4 formation.
During concrete operations, if space 10 prior to or in space, 9 solidify simultaneously, due to volumetric expansion, excess fluid can reflux by space 9, thus not there will be the too high situation of ceramic core body upward pressure that acts in this kind of situation, without doing more protectiveness designs; If space 10 is later than space 9, solidify, because backflow is rushed down pressure passageway and is blocked, space 10 can the volumetric expansions with fluid solidifies, pressure rise, thereby produce, promote ceramic core body 6 mobile acting force dorsad; Due to the characteristic rubber ring 3 that existence has elastic deformation, compressed by the power transmission of ceramic core body, thereby deformation and carry out the expanding volume compensation stop the further rising of space 10 internal pressures, and it is controlled in safe range.Due to reasons such as medium or environment, tend to be created in the sealing function inefficacy at O-ring seal 7 positions, cause the leakage of fluid media (medium) and enter space 11, existence due to structure 3 rubber rings, now it can bring into play the effect of O-ring seal, can stop fluid media (medium) infiltration of 12 to space, thereby guarantees the safety of ceramic induction part and amplifying circuit in space 12, guarantee sensor in the situation that leakage is arranged, also can guarantee correct signal transmission.The sealing circle is a kind of self-locking design in addition, and pressure is larger, and the seal preload acted on structure 3 rubber rings is larger, and sealing property is stronger.
Above demonstration and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. a freeze proof ceramic pressure sensor encapsulation, it is characterized in that: comprise fluid power interface, encapsulating shell, rubber ring, circuit chip, cap, ceramic core body and O-ring seal, described fluid power interface is connected with encapsulating shell, the inboard of fluid power interface is connected with rubber ring, the fluid power interface is connected by O-ring seal with ceramic core body, be connected with rubber ring between described ceramic core body and cap, ceramic core body is connected with the circuit chip solid mechanical, and described encapsulating shell is connected with cap.
2. according to a kind of freeze proof ceramic pressure sensor encapsulation claimed in claim 1, it is characterized in that: described fluid power interface and encapsulating shell are metal material or plastic material, and the fluid power interface is connected for rigidly fixing with encapsulating shell.
3. according to a kind of freeze proof ceramic pressure sensor encapsulation claimed in claim 1, it is characterized in that: described encapsulating shell and cap are for being rigidly connected or floating connection.
4. according to a kind of freeze proof ceramic pressure sensor encapsulation claimed in claim 1, it is characterized in that: the cylindrical rubber circle is equipped with in described fluid power interface inboard, and fluid power interface and rubber ring are connected.
5. according to a kind of freeze proof ceramic pressure sensor encapsulation claimed in claim 1, it is characterized in that: between described ceramic core body and cap, annular rubber ring is housed, circuit chip and ceramic core body are fixed mechanical connection, pottery core body, circuit chip and rubber ring form a space, in the Ci space, solid mechanical coupling part of circuit chip and ceramic core body, described ceramic core body, cap are connected with the rubber ring fitted seal.
6. according to a kind of freeze proof ceramic pressure sensor encapsulation claimed in claim 1, it is characterized in that: described ceramic core body is that fitted seal is connected with O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338329.XU CN203385509U (en) | 2013-06-13 | 2013-06-13 | Antifreezing packaging for ceramic pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338329.XU CN203385509U (en) | 2013-06-13 | 2013-06-13 | Antifreezing packaging for ceramic pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385509U true CN203385509U (en) | 2014-01-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320338329.XU Expired - Lifetime CN203385509U (en) | 2013-06-13 | 2013-06-13 | Antifreezing packaging for ceramic pressure sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203385509U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344380A (en) * | 2013-06-13 | 2013-10-09 | 安徽艾可蓝节能环保科技有限公司 | Anti-freezing ceramic pressure sensor packaging piece |
| CN107655597A (en) * | 2016-07-25 | 2018-02-02 | 张家港市木野机械有限公司 | A kind of ink jet numbering machine pressure sensor |
| CN108562392A (en) * | 2018-04-04 | 2018-09-21 | 合肥皖科智能技术有限公司 | A kind of encapsulating structure of capacitive pressure transducer |
| CN108593195A (en) * | 2018-05-04 | 2018-09-28 | 中北大学 | High temperature hydraulic pressure sensor-packaging structure |
-
2013
- 2013-06-13 CN CN201320338329.XU patent/CN203385509U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344380A (en) * | 2013-06-13 | 2013-10-09 | 安徽艾可蓝节能环保科技有限公司 | Anti-freezing ceramic pressure sensor packaging piece |
| CN107655597A (en) * | 2016-07-25 | 2018-02-02 | 张家港市木野机械有限公司 | A kind of ink jet numbering machine pressure sensor |
| CN108562392A (en) * | 2018-04-04 | 2018-09-21 | 合肥皖科智能技术有限公司 | A kind of encapsulating structure of capacitive pressure transducer |
| CN108593195A (en) * | 2018-05-04 | 2018-09-28 | 中北大学 | High temperature hydraulic pressure sensor-packaging structure |
| CN108593195B (en) * | 2018-05-04 | 2020-03-17 | 中北大学 | High-temperature hydraulic pressure sensor packaging structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 247000 Guichi Industrial Park, Anhui, Chizhou Patentee after: ANHUI ACT-BLUE ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: 247000 Guichi Industrial Park, Anhui, Chizhou Patentee before: Anhui Aikelan environmental protection Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anti-freezing ceramic pressure sensor packaging piece Effective date of registration: 20170106 Granted publication date: 20140108 Pledgee: China Co. truction Bank Corp Chizhou branch Pledgor: ANHUI ACT-BLUE ENVIRONMENTAL PROTECTION Co.,Ltd. Registration number: 2017340000001 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200916 Granted publication date: 20140108 Pledgee: China Co. truction Bank Corp Chizhou branch Pledgor: ANHUI ACT-BLUE ENVIRONMENTAL PROTECTION Co.,Ltd. Registration number: 2017340000001 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |
|
| CX01 | Expiry of patent term |