CN209446211U - A kind of pressure sensor with high-insulativity - Google Patents
A kind of pressure sensor with high-insulativity Download PDFInfo
- Publication number
- CN209446211U CN209446211U CN201920160125.9U CN201920160125U CN209446211U CN 209446211 U CN209446211 U CN 209446211U CN 201920160125 U CN201920160125 U CN 201920160125U CN 209446211 U CN209446211 U CN 209446211U
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- chip
- lower case
- upper housing
- pressure element
- pressure sensor
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Abstract
The utility model discloses a kind of pressure sensors with high-insulativity, it is related to a kind of pressure sensor, it includes upper housing, lower case, pressure element, IC chip and connection end, the upper housing and lower case are threadably secured connection, including pressure element and ic chip package, connection end is installed on upper housing, connection end and IC chip are electrically connected, the position through-hole I opposite with pressure element is offered in the lower case, the ic core on piece is equipped with casting glue, the beneficial effects of the utility model are: the element device of IC chip is packaged by casting glue, even if the phenomenon that medium life leakage, medium will not the element device to IC chip damage, short circuit will not occur, phenomena such as electric leakage, very safety, in addition, it passes through positioning seat With the design of positioning sleeve, it is able to achieve the good fixation to pressure element etc..
Description
Technical field
The utility model relates to a kind of pressure sensor, specifically a kind of pressure sensor with high-insulativity.
Background technique
Pressure sensor is to experience pressure signal, and can be converted into pressure signal according to certain rule available defeated
The device or device of electric signal out are a kind of sensors the most commonly used in industrial practice, are widely used in various industry
Automatic control environment is related to water conservancy and hydropower, railway traffic, intelligent building, production automatic control, aerospace, military project, petrochemical industry, oil well, electricity
Numerous industries such as power, ship, lathe, pipeline.
In some special industries, such as when the medium to conductive energy carries out pressure detecting, if medium
The insulation performance for occurring to leak sensor in other words is bad, it is most likely that conduction, short circuit accident etc. occurs, there are certain safety
Hidden danger.
Utility model content
The purpose of this utility model is to provide a kind of pressure sensors with high-insulativity, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of pressure sensor with high-insulativity, including upper housing, lower case, pressure element, IC chip
And connection end, the upper housing and lower case are threadably secured connection, pressure element and ic chip package are existed
It is interior, connection end is installed, connection end and IC chip are electrically connected, and offer position in the lower case on upper housing
The through-hole I opposite with pressure element is set, the ic core on piece is equipped with casting glue, and the element device of IC chip is sealed
Mounted in interior, insulation sleeve is also equipped between the connection end and upper housing.
The junction of the upper housing and lower case is equipped with sealing ring as a further solution of the present invention,
II。
Positioning seat, the side of positioning seat are also equipped in the lower case as a further solution of the present invention,
Sealing ring I is installed between the side wall of lower case, and the outside of positioning seat is equipped with the step surface matched with pressure element, it is fixed
Sealing ring III is installed, positioning seat is equipped with through-hole II corresponding with through-hole I between the outside and pressure element of position seat.
The opposite end of the through-hole I and through-hole II is respectively equipped with bellmouth I as a further solution of the present invention,
With bellmouth II, bellmouth I and bellmouth II to be relatively large in diameter end position opposite.
It has also been connected through a screw thread on the inner wall of the lower case as a further solution of the present invention, same with it
The positioning sleeve of axis, the endface position of positioning sleeve are equipped with a circle flange, and flange is opposite with the marginal position of pressure element, integrated circuit
Chip is mounted in positioning sleeve by support frame.
The inner wall of the upper housing is equipped with opposite with positioning sleeve end face as a further solution of the present invention,
Squeeze step.
Compared with prior art, the utility model has the beneficial effects that passing through casting glue for the element of IC chip
Device is packaged, though the phenomenon that medium raw leakage, medium will not the element device to IC chip damage, also not
Phenomena such as short circuit, electric leakage can occur, very safety, in addition, its design for passing through positioning seat and positioning sleeve, is able to achieve to pressure-sensitive
The good fixation of element etc., even if the shaking of wide-angle occurs, the normal work of internal component is still unaffected.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of pressure sensor with high-insulativity.
Fig. 2 is a kind of structural schematic diagram of positioning seat in pressure sensor with high-insulativity.
Fig. 3 is a kind of structural schematic diagram of positioning sleeve in pressure sensor with high-insulativity.
In figure: 1- upper housing, 2- lower case, 3- pressure element, 4- positioning seat, 5- through-hole I, 6- sealing ring I, 7- bellmouth
I, it is close to squeeze step, 12- IC chip, 13- positioning sleeve, 14- by 8- bellmouth II, 9- through-hole II, 10- sealing ring II, 11-
Seal III, 15- connection end, 16- insulation sleeve, 17- flange, 18- casting glue.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects disclosed in the present embodiment are consistent.
Embodiment 1
Referring to Fig. 1, in the utility model embodiment, a kind of pressure sensor with high-insulativity, including upper housing
1, lower case 2, pressure element 3, IC chip 12 and connection end 15, the upper housing 1 and lower case 2 are solid by screw thread
Fixed connection, pressure element 3 and IC chip 12 are encapsulated in, connection end 15, connection end are installed on upper housing 1
15 are electrically connected with IC chip 12, offer the position through-hole I5 opposite with pressure element 3 in the lower case 2, to
The medium of measurement can be acted on pressure element 3 by through-hole I5, it is preferred that pressure element 3 here can be ceramics
Sensing element, herein without extra restriction, the IC chip 12 is equipped with casting glue 18, by IC chip 12
Element device be encapsulated in, even if pressure sensor, there is a phenomenon where leaking, medium will not be to the member of IC chip 12
Phenomena such as part device damages, and short circuit, electric leakage will not occur, very safety, casting glue 18 can be used resin etc. and be made,
Also the composite material etc. containing resin can be used, herein without for limit, between the connection end 15 and upper housing 1
It is also equipped with insulation sleeve 16.
Preferably, the junction of upper housing 1 and lower case 2 is equipped with sealing ring II10.
Embodiment 2
Please refer to Fig. 2~3, in the utility model embodiment, a kind of pressure sensor with high-insulativity, in above-mentioned reality
On the basis of applying example: in order to carry out good positioning to pressure element 3, positioning seat 4 is also equipped in the lower case 3, is positioned
Sealing ring I is installed, and the outside of positioning seat 4 is equipped with and matches with pressure element 3 between the side of seat 4 and the side wall of lower case 3
The step surface of conjunction is equipped with sealing ring III14 between the outside and pressure element 3 of positioning seat 4, reveals for preventing medium from coming out
The case where, certainly, positioning seat 4 is equipped with through-hole II9 corresponding with through-hole I5.
Preferably, the suddenly change of pressure medium is impacted to caused by pressure element 3 in order to prevent, the through-hole I5 and
The opposite end of through-hole II9 is respectively equipped with bellmouth I7 and bellmouth II8, and bellmouth I7 and being relatively large in diameter for bellmouth II8 hold position
It sets relatively, enables medium to undergo certain buffering when by herein, reduce the direct impact to pressure element 3, here
Bellmouth I7 and bellmouth II8 is actually frustum of a cone hole.
Moreover, also passing through screw thread on the inner wall of the lower case 3 to further promote the positioning to pressure element 3
It is connected with coaxial positioning sleeve 13, the endface position of positioning sleeve 13 is equipped with a circle flange 17, flange 17 and pressure element 3
Marginal position is opposite, one fixes the extruding of pressure element 3 to be able to achieve, and two are equipped with resigning among it, will not be to pressure-sensitive member
The intermediate pressure-sensitive part of part 3 impacts, and IC chip 12 is mounted in positioning sleeve 13 by support frame.
But in actual use, if the installation of positioning sleeve 13 is not in place, will lead to subsequent assembling process be difficult to after
It is continuous, or the normal work of pressure element 3 is impacted, therefore, in the present embodiment, the inner wall of the upper housing 1 is equipped with
The extruding step 11 opposite with 13 end face of positioning sleeve, when 13 normal mounting of positioning sleeve, squeeze step 11 just with positioning sleeve 13
End face contact.
It should be strongly noted that in the technical program, by casting glue 18 by the element device of IC chip 12 into
Row encapsulation, though the phenomenon that medium raw leakage, medium will not the element device to IC chip 12 damage, will not
Phenomena such as short circuit, electric leakage occurs, very safety, in addition, its design for passing through positioning seat 4 and positioning sleeve 13, is able to achieve to sense
The good fixation of element 3 etc. is pressed, even if the shaking of wide-angle occurs, the normal work of internal component is still unaffected.
Those skilled in the art will readily occur to other realities of the disclosure after considering the disclosure at specification and embodiment
Apply scheme.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or suitable
The variation of answering property follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure or used
Use technological means.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are referred to by claim
Out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (6)
1. a kind of pressure sensor with high-insulativity, including upper housing (1), lower case (2), pressure element (3), integrated electricity
Road chip (12) and connection end (15), the upper housing (1) and lower case (2) are threadably secured connection, by pressure element
(3) and in IC chip (12) is encapsulated in it, is equipped on upper housing (1) connection end (15), connection end (15) and collection
It is electrically connected at circuit chip (12), offers position and pressure element (3) opposite through-hole I (5) on the lower case (2),
It is characterized in that, the IC chip (12) is equipped with casting glue (18), the element device of IC chip (12) is sealed
Mounted in interior, insulation sleeve (16) are also equipped between the connection end (15) and upper housing (1).
2. a kind of pressure sensor with high-insulativity according to claim 1, which is characterized in that the upper housing
(1) and the junction of lower case (2) is equipped with sealing ring II (10).
3. a kind of pressure sensor with high-insulativity according to claim 1 or 2, which is characterized in that the lower casing
It is also equipped with positioning seat (4) in body (2), sealing ring I is installed between the side of positioning seat (4) and the side wall of lower case (2), and
The outside of positioning seat (4) is equipped with the step surface that matches with pressure element (3), the outside and pressure element (3) of positioning seat (4) it
Between be equipped with sealing ring III (14), positioning seat (4) be equipped with through-hole II (9) corresponding with through-hole I (5).
4. a kind of pressure sensor with high-insulativity according to claim 3, which is characterized in that the through-hole I (5)
Bellmouth I (7) and bellmouth II (8) are respectively equipped with the opposite end of through-hole II (9), bellmouth I (7) and bellmouth II's (8)
It is opposite to be relatively large in diameter end position.
5. a kind of pressure sensor with high-insulativity according to claim 3, which is characterized in that the lower case
(2) it is also connected through a screw thread on inner wall coaxial positioning sleeve (13), the endface position of positioning sleeve (13) is equipped with a circle
Flange (17), flange (17) is opposite with the marginal position of pressure element (3), and IC chip (12) is mounted on by support frame
In positioning sleeve (13).
6. a kind of pressure sensor with high-insulativity according to claim 5, which is characterized in that the upper housing
(1) inner wall is equipped with the extruding step (11) opposite with positioning sleeve (13) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920160125.9U CN209446211U (en) | 2019-01-30 | 2019-01-30 | A kind of pressure sensor with high-insulativity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920160125.9U CN209446211U (en) | 2019-01-30 | 2019-01-30 | A kind of pressure sensor with high-insulativity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446211U true CN209446211U (en) | 2019-09-27 |
Family
ID=68019165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920160125.9U Active CN209446211U (en) | 2019-01-30 | 2019-01-30 | A kind of pressure sensor with high-insulativity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209446211U (en) |
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2019
- 2019-01-30 CN CN201920160125.9U patent/CN209446211U/en active Active
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