CN205228684U - Pressure sensor - Google Patents
Pressure sensor Download PDFInfo
- Publication number
- CN205228684U CN205228684U CN201520932026.XU CN201520932026U CN205228684U CN 205228684 U CN205228684 U CN 205228684U CN 201520932026 U CN201520932026 U CN 201520932026U CN 205228684 U CN205228684 U CN 205228684U
- Authority
- CN
- China
- Prior art keywords
- bleeder vent
- pressure transducer
- substrate
- height
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a pressure sensor, including the shell that has accommodating space, install pressure sensor chip and integrated circuit chip in the accommodating space, the intercommunication has been seted up on the shell accommodating space and outside bleeder vent, at least two has the difference in height between the bleeder vent. The utility model discloses a trompil on the shell balances inside and outside atmospheric pressure, promotes the reliability of sensor.
Description
[technical field]
The utility model relates to a kind of sensor technical field, particularly relates to a kind of pressure transducer.
[background technology]
Along with the develop rapidly that science and technology is maked rapid progress, intelligentized portable electric appts comes into vogue gradually, such as smart mobile phone, Intelligent bracelet, intelligence on hand, panel computer etc.User is constantly pursuit portable electric appts is intelligentized while, and what more focus on is need portable electric appts to have the impression of colourful Consumer's Experience.Pressure transducer is placed in portable electric appts by increasing manufacturer at present, and the sensor of test pressure is strain transducer usually, but the measuring accuracy of strain gauge is low.
The MEMS pressure sensor provided in prior art, to improve measuring accuracy, generally all comprises MEMS pressure sensor chip and asic chip.But the heat dispersion of existing MEMS pressure sensor is not good, real-time internal-external portion cannot be realized and breathe freely, affect the performance of sensor.
Therefore, be necessary to provide a kind of new pressure transducer to solve the problems referred to above.
[utility model content]
The purpose of this utility model is to provide a kind of pressure transducer that can promote sensor performance.
The technical solution of the utility model is as follows: provide a kind of pressure transducer, comprise the shell with receiving space, pressure sensor chip and integrated circuit (IC) chip are installed in described receiving space, described shell offers and is communicated with described receiving space and outside bleeder vent, between at least two described bleeder vents, there is difference in height.
Further, described difference in height is at least 1:4 ~ 1:3 with the ratio of the height of described pressure transducer.
Further, described shell comprises substrate and is located to surround the lid of described receiving space on this substrate, and described lid comprises roof and bends the sidewall extended to form along described roof, and described sidewall is fixedly connected with described substrate.
Further, described bleeder vent at least comprises the first bleeder vent be arranged on roof and the second bleeder vent be opened on described sidewall.
Further, described bleeder vent at least comprises setting the 3rd bleeder vent on the substrate, and the first bleeder vent be opened on described roof and/or the second bleeder vent be opened on described sidewall.
The beneficial effects of the utility model are: the utility model, by offering multiple bleeder vents with difference in height on the shell of pressure transducer, effectively realizes the timely circulation of pressure transducer inside and outside air-flow, promote the performance of sensor.
[accompanying drawing explanation]
The structural representation of the pressure transducer of the first embodiment that Fig. 1 provides for the utility model;
The structural representation that the pressure sensing of the second embodiment that Fig. 2 provides for the utility model rises;
The structural representation that the pressure sensing of the third embodiment that Fig. 3 provides for the utility model rises.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
With reference to figure 1, the pressure transducer of the first embodiment that the utility model provides comprises the shell 10 with receiving space 100 and the pressure sensor chip 20 be contained in receiving space 100 and integrated circuit (IC) chip 30.Shell 10 offers the bleeder vent being communicated with outside and receiving space 100, comprise the first bleeder vent 110 and the second bleeder vent 130.Between first bleeder vent 110 and the second bleeder vent 130, there is difference in height.Especially, in the present embodiment, shell 10 comprises substrate 12 and is located on this substrate 12 to surround the lid 11 of described receiving space 100, the roughly rectangular box body shape of lid 11, described lid 11 comprises roof 111 and bends the sidewall 112 extended to form along described roof 111, and described sidewall 112 is fixedly connected with described substrate 12.First bleeder vent 110 is opened on roof 111, second bleeder vent 130 is opened on sidewall 112, especially between the first bleeder vent 110 and the second bleeder vent 130, there is difference in height, and the ratio of the height of the pressure transducer entirety shown in this difference in height with Fig. 1 is at least 1:4 ~ 1:3, is preferably 1:3.Adopt this structure can make to complete fast the real-time exchange of inside and outside air-flow, improve the performance of pressure transducer.
Further, substrate 12 is PCB, and pressure sensor chip 20 and integrated circuit (IC) chip 30 are disposed on substrate 12 side by side, and realizes the electrical connection between three by binding gold thread 40.In other embodiments, this pressure sensor chip 20 and the stacking setting of integrated circuit (IC) chip 30 are on the substrate 12.In other examples, this bleeder vent also can be arranged on the substrate 12, and pressure sensor chip 20 and integrated circuit (IC) chip 30 is arranged on lid 11.Or pressure sensor chip and integrated circuit (IC) chip one are arranged on substrate, and another is arranged on and covers.In the present embodiment, pressure sensor chip 20 can be MEMS pressure sensor chip.
With reference to figure 2, in the pressure transducer of the second embodiment that the utility model provides, the position of offering of bleeder vent is compared the first embodiment and is had certain difference.In the present embodiment, bleeder vent comprises the first bleeder vent 110 be opened on roof 110, the second bleeder vent 130 be opened on sidewall 112, and offers the 3rd bleeder vent 120 on the substrate 12.Among the first above-mentioned bleeder vent 110, second bleeder vent 130 and the 3rd bleeder vent 120, the difference in height between any two bleeder vents and the ratio between the height of pressure transducer entirety are all at least 1:4.
As shown in Figure 3, compare first and second embodiment above-mentioned, in the 3rd embodiment of the present utility model, bleeder vent comprises the first bleeder vent 110 being opened in roof 110 and the 3rd bleeder vent 120 offered on the substrate 12, obviously, the difference in height between the first bleeder vent 110 and the 3rd bleeder vent 120 equals the height of pressure transducer entirety.Be to be understood that, in other embodiments of the invention, bleeder vent also can be made up of the second bleeder vent 130 be opened on sidewall 112 and the 3rd bleeder vent 120 offered on the substrate 12, and the difference in height between the second bleeder vent 130 and the 3rd bleeder vent 120 is at least 1/4th of pressure transducer whole height.
Above-described is only embodiment of the present utility model; it should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite not departing from the utility model creation design; improvement can also be made, but these all belong to protection domain of the present utility model.
Claims (5)
1. a pressure transducer, comprise the shell with receiving space, it is characterized in that, pressure sensor chip and integrated circuit (IC) chip are installed in described receiving space, described shell offers and is communicated with described receiving space and outside bleeder vent, between at least two described bleeder vents, there is difference in height.
2. pressure transducer according to claim 1, is characterized in that, described difference in height is at least 1:4 with the ratio of the height of described pressure transducer.
3. pressure transducer according to claim 2, it is characterized in that, described shell comprises substrate and is located to surround the lid of described receiving space on this substrate, and described lid comprises roof and bends the sidewall extended to form along described roof, and described sidewall is fixedly connected with described substrate.
4. pressure transducer according to claim 3, is characterized in that, described bleeder vent at least comprises the first bleeder vent be arranged on roof and the second bleeder vent be opened on described sidewall.
5. pressure transducer according to claim 3, is characterized in that, described bleeder vent at least comprises setting the 3rd bleeder vent on the substrate, and the first bleeder vent be opened on described roof and/or the second bleeder vent be opened on described sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932026.XU CN205228684U (en) | 2015-11-20 | 2015-11-20 | Pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932026.XU CN205228684U (en) | 2015-11-20 | 2015-11-20 | Pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205228684U true CN205228684U (en) | 2016-05-11 |
Family
ID=55903741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520932026.XU Expired - Fee Related CN205228684U (en) | 2015-11-20 | 2015-11-20 | Pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205228684U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696271A (en) * | 2017-10-23 | 2019-04-30 | 南京开天眼无人机科技有限公司 | A kind of pressure sensor equipped with memorial alloy |
| CN109696264A (en) * | 2017-10-23 | 2019-04-30 | 南京开天眼无人机科技有限公司 | A kind of pressure sensor |
-
2015
- 2015-11-20 CN CN201520932026.XU patent/CN205228684U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696271A (en) * | 2017-10-23 | 2019-04-30 | 南京开天眼无人机科技有限公司 | A kind of pressure sensor equipped with memorial alloy |
| CN109696264A (en) * | 2017-10-23 | 2019-04-30 | 南京开天眼无人机科技有限公司 | A kind of pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20211120 |