CN203629742U - Pressure measuring device - Google Patents
Pressure measuring device Download PDFInfo
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- CN203629742U CN203629742U CN201320863280.XU CN201320863280U CN203629742U CN 203629742 U CN203629742 U CN 203629742U CN 201320863280 U CN201320863280 U CN 201320863280U CN 203629742 U CN203629742 U CN 203629742U
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- circuit board
- control circuit
- pressure
- pressure measurement
- protecting sheathing
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- 238000009530 blood pressure measurement Methods 0.000 claims description 47
- 239000002184 metal Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000006698 induction Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Abstract
The utility model discloses a pressure measuring device. The pressure measuring device comprises a control circuit board, a pressure sensor which is arranged on a surface of the control circuit board, and an application specific integrated circuit which is arranged on the surface of the control circuit board and matches with the pressure sensor; the an application specific integrated circuit and the pressure sensor are arranged on the same side of the control circuit board; and a surface, which has the smallest surface area, of the pressure sensor is fixedly connected with the control circuit board. According to the pressure measuring device of the application, the pressure sensor is configured to be contacted with and fixed to the control circuit board through the smallest side face having the smaller surface area, a contact stress between the pressure sensor and the control circuit board is reduced, and influences of the contact stress on a pressure induction face are thus reduced, so accuracy of a pressure test is better.
Description
Technical field
The utility model relates to pressure measurement technology field, more particularly, relates to a kind of device for pressure measurement.
Background technology
The embodiment of the present utility model that be intended to for stating in claims this part provides background or context.Description herein can comprise the concept that can probe into, but the concept of having expected or having probed into not necessarily.Therefore, unless point out at this, the content of describing in this part is not prior art for the application's instructions and claims, and not because be included in just admit it is prior art in this part.
The existing device for pressure measurement for gas pressure measurement comprises: control circuit board, the special IC that is arranged on the pressure transducer on surface, described control circuit board the same side and matches with described pressure transducer.In order to improve the induction sensitivity of pressure transducer, pressure transducer pressure sensitive face and the surperficial area relative with described pressure sensitive face be greater than side, in the time carrying out sensor package, the surface relative with described pressure sensitive face is fixed on described control circuit board.
Inventor's discovery, the existing device for pressure measurement for gas pressure measurement is due to larger with the contact area of control circuit board, and the contact stress that pressure transducer is subject to is larger, affects the degree of accuracy of pressure test.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of device for pressure measurement, and described device for pressure measurement has reduced the contact stress with control circuit board, and the degree of accuracy of pressure test is better.
For achieving the above object, the utility model provides following technical scheme:
A kind of device for pressure measurement, for gas pressure measurement, described device for pressure measurement comprises:
Control circuit board;
Be arranged on the pressure transducer on described control circuit board surface;
The special IC that is arranged on described control circuit board surface, matches with described pressure transducer, described special IC and described pressure transducer are arranged on the same side of described control circuit board;
Wherein, the surface of described pressure transducer surface area minimum is fixedly connected with described control circuit board.
Preferably, in above-mentioned device for pressure measurement, also comprise:
Be arranged on described control circuit board one side, surround the protecting sheathing of described special IC and described pressure transducer;
Wherein, the surface of described protecting sheathing be provided with for the air hole of ambient pressure conducting.
Preferably, in above-mentioned device for pressure measurement, described protecting sheathing is metal shell.
Preferably, in above-mentioned device for pressure measurement, the dismountable side that is fixed on described control circuit board of described protecting sheathing.
Preferably, in above-mentioned device for pressure measurement, described protecting sheathing and described control circuit board are by buckle or fixed screw or fixing glue is fixed.
Preferably; in above-mentioned device for pressure measurement; described pressure sensitive face is oppositely arranged with described special IC, and described air hole is arranged on the upper surface of described protecting sheathing, and described air hole is arranged on the top of described pressure sensitive face and described special IC relative gap.
Preferably, in above-mentioned device for pressure measurement, described pressure sensitive face deviates from setting mutually with described special IC, and described air hole is arranged on the side that described protecting sheathing is relative with described pressure sensitive face.
Preferably, in above-mentioned device for pressure measurement, described pressure transducer and described control circuit board weld by pad.
Preferably, in above-mentioned device for pressure measurement, the surface of described pressure transducer surface area minimum is fixedly connected with described control circuit board
Can find out from technique scheme, device for pressure measurement provided by the utility model comprises: control circuit board; Be arranged on the pressure transducer on described control circuit board surface; The special IC that is arranged on described control circuit board surface, matches with described pressure transducer, described special IC and described pressure transducer are arranged on the same side of described control circuit board; Wherein, the surface of described pressure transducer surface area minimum is fixedly connected with described control circuit board.Described in the application, device for pressure measurement arranges pressure transducer and contacts fixing by the side of the less minimum of surface area with described control circuit board, reduce the contact stress of pressure transducer and control circuit board, and then reduced the impact of described contact stress on pressure sensitive face, so the degree of accuracy of pressure test is better.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of device for pressure measurement that Fig. 1 provides for the utility model embodiment;
The structural representation of the another kind of device for pressure measurement that Fig. 2 provides for the utility model embodiment.
Embodiment
The existing device for pressure measurement for gas pressure measurement is due to larger with the contact area of control circuit board, and the contact stress that pressure transducer is subject to is larger, affects the degree of accuracy of pressure test.
Inventor studies discovery, and the area of the side of sensor is less, contacts fix by side with control circuit board, can effectively reduce contact area, and then reduce the contact stress between control circuit board and sensor, guarantees the accuracy of pressure test.
Based on above-mentioned research, the utility model provides a kind of device for pressure measurement, and for gas pressure measurement, this device for pressure measurement comprises:
Control circuit board;
Be arranged on the pressure transducer on described control circuit board surface;
The special IC that is arranged on described control circuit board surface, matches with described pressure transducer, described special IC and described pressure transducer are arranged on the same side of described control circuit board;
Wherein, the surface of described pressure transducer surface area minimum is fixedly connected with described control circuit board.
Described in the technical program, device for pressure measurement arranges pressure transducer and contacts fixing by the side of the less minimum of surface area with described control circuit board, reduce the contact stress of pressure transducer and control circuit board, and then reduced the impact of described contact stress on pressure sensitive face, so the degree of accuracy of pressure test is better.
It is more than the application's core concept, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
A lot of details are set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to the utility model intension in the situation that, and therefore the utility model is not subject to the restriction of following public specific embodiment.
Secondly, the utility model is described in detail in conjunction with schematic diagram, in the time that the utility model embodiment is described in detail in detail; for ease of explanation; the schematic diagram of indication device structure can be disobeyed general ratio and be done local amplification, and described schematic diagram is example, and it should not limit the scope of the utility model protection at this.In addition in actual fabrication, should comprise, the three-dimensional space of length, width and height.
With reference to figure 1, based on above-mentioned thought, Fig. 2 shows a kind of device for pressure measurement for measurement gas pressure that the embodiment of the present application provides, comprise: control circuit board 1, pressure transducer 2 and the special IC 3(Application Specific Integrated Circuit matching with described pressure transducer, be called for short ASIC).
Wherein, described pressure transducer 2 and described special IC 3 are arranged on the same side of described control circuit board 1.
In the present embodiment, described pressure transducer 2 is rectangular structure, and in order to increase its sensitivity, the pressure sensitive face of described pressure transducer 2 is the surface of described rectangular parallelepiped surface area maximum.
In order to reduce the contact stress of sensor 2 and control circuit board 1, the surface that the surface area minimum of described rectangular parallelepiped is set is connected with described control circuit board 1, to guarantee that the test result of device for pressure measurement has good degree of accuracy.In addition, pressure sensitive face described in present embodiment is vertical with described control circuit board 1 place plane, in the time carrying out pressure survey, described device for pressure measurement horizontal positioned, described pressure sensitive face is vertical, can avoid because the accumulation of dust on described pressure sensitive face causes harmful effect to test result.
Collided and damage with described special IC 3 for fear of described pressure transducer 2, described device for pressure measurement also comprises: be arranged on a side of described control circuit board 1, surround the protecting sheathing 4 of described special IC 3 and described pressure transducer 2.Wherein, the surface of described protecting sheathing 4 be provided with for the air hole of ambient pressure conducting.
Described protecting sheathing is plastic casing or metal shell in addition.The present embodiment preferably adopts metal shell as described protecting sheathing 4, by the electrostatic screening effect of metal shell, places the impact of external electromagnetic signal on sensor electrical signal, has further guaranteed the degree of accuracy of test result.
External force is convenient to installation, dismounting and the maintenance of parts, and the dismountable side that is fixed on described control circuit board 1 of described protecting sheathing 4 is surrounded described special IC 3 and described pressure transducer 2.Described protecting sheathing 4 is with described control circuit board 1 can by buckle or fixed screw or fixing glue be fixed.
In Fig. 1 illustrated embodiment; described pressure sensitive face is set to be oppositely arranged with described special IC 3; the air hole of described protecting sheathing 4 is arranged on the upper surface of described protecting sheathing 4, and described air hole is arranged on to the top of described pressure sensitive face and described special IC 3 relative gaps.Like this, make described pressure sensitive surface minimum distance contact ambient pressure, in the time that air pressure changes, can respond the very first time, test out corresponding force value.
With reference to figure 2; the another kind that Fig. 2 provides for the utility model embodiment is for the device for pressure measurement of measurement gas pressure; in Fig. 2 illustrated embodiment; described pressure sensitive face is set and deviates from mutually with described special IC 3, the through hole of described protecting sheathing 4 is arranged on to described protecting sheathing 4 side relative with described pressure sensitive face.
In above-mentioned two kinds of pressure test devices, its through hole is all oppositely arranged with the central area of described pressure sensitive face, to guarantee tonometric accuracy.
Described special IC 3, for being integrated with the integrated circuit of wheatstone bridge circuits, is communicated with described sensor 2 by described control circuit board 1.The pressure sensitive surface of described sensor 2 is to presser sensor semiconductor financial resources film.Can there is deformation in film under gas pressure, and then cause the resistance of semiconductor material to change, and then make the curtage of described wheatstone bridge circuits that corresponding variation occur, and the logical curtage value of measuring can calculate gas pressure value.
Device for pressure measurement described in the embodiment of the present application, welds described pressure transducer and described control circuit board by pad by pad.With respect to adopting routing technique that sensor is fixed on to the mode on control circuit board, cost is lower.
Known by foregoing description, for the device for pressure measurement of gaseous tension test, reduce the contact stress of pressure transducer and control circuit board described in the embodiment of the present application, there is good testing precision.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a device for pressure measurement, for gas pressure measurement, is characterized in that, comprising:
Control circuit board;
Be arranged on the pressure transducer on described control circuit board surface;
The special IC that is arranged on described control circuit board surface, matches with described pressure transducer, described special IC and described pressure transducer are arranged on the same side of described control circuit board;
Wherein, the surface of described pressure transducer surface area minimum is fixedly connected with described control circuit board.
2. device for pressure measurement according to claim 1, is characterized in that, also comprises:
Be arranged on described control circuit board one side, surround the protecting sheathing of described special IC and described pressure transducer;
Wherein, the surface of described protecting sheathing be provided with for the air hole of ambient pressure conducting.
3. device for pressure measurement according to claim 2, is characterized in that, described protecting sheathing is metal shell.
4. device for pressure measurement according to claim 2, is characterized in that, the dismountable side that is fixed on described control circuit board of described protecting sheathing.
5. device for pressure measurement according to claim 2, is characterized in that, described protecting sheathing and described control circuit board are by buckle or fixed screw or fixing glue is fixed.
6. device for pressure measurement according to claim 2; it is characterized in that; described pressure sensitive face is oppositely arranged with described special IC; described air hole is arranged on the upper surface of described protecting sheathing, and described air hole is arranged on the top of described pressure sensitive face and described special IC relative gap.
7. device for pressure measurement according to claim 2, is characterized in that, described pressure sensitive face deviates from setting mutually with described special IC, and described air hole is arranged on the side that described protecting sheathing is relative with described pressure sensitive face.
8. device for pressure measurement according to claim 1, is characterized in that, described pressure transducer and described control circuit board weld by pad.
9. device for pressure measurement according to claim 1, is characterized in that, the pressure sensitive face of described pressure transducer is vertical with described control circuit board place plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863280.XU CN203629742U (en) | 2013-12-25 | 2013-12-25 | Pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863280.XU CN203629742U (en) | 2013-12-25 | 2013-12-25 | Pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629742U true CN203629742U (en) | 2014-06-04 |
Family
ID=50816208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320863280.XU Expired - Lifetime CN203629742U (en) | 2013-12-25 | 2013-12-25 | Pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629742U (en) |
-
2013
- 2013-12-25 CN CN201320863280.XU patent/CN203629742U/en not_active Expired - Lifetime
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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: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200615 Address after: 266104 room 103, 396 Songling Road, Laoshan District, Qingdao, Shandong Province Patentee after: Goer Microelectronics Co.,Ltd. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: GOERTEK Inc. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
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| CX01 | Expiry of patent term |