CN211401534U - SMD pressure sensor protective sheath - Google Patents
SMD pressure sensor protective sheath Download PDFInfo
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- CN211401534U CN211401534U CN201922343107.7U CN201922343107U CN211401534U CN 211401534 U CN211401534 U CN 211401534U CN 201922343107 U CN201922343107 U CN 201922343107U CN 211401534 U CN211401534 U CN 211401534U
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- pressure sensor
- protective sheath
- cylindrical shell
- smd
- smd pressure
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- 230000001681 protective effect Effects 0.000 title claims abstract description 56
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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Abstract
The utility model relates to a SMD pressure sensor protective sheath, include: the cylindrical shell, the top of cylindrical shell is sealed, and cylindrical shell is inside to be formed with hollow chamber to link up the bottom of cylindrical shell, the side of cylindrical shell sets up porosely, and the hole is linked together with hollow chamber, and the side of cylindrical shell can cover SMD pressure sensor's side, has protected SMD pressure sensor's diaphragm not to receive the damage. The utility model discloses a SMD pressure sensor protective sheath can cover SMD pressure sensor, and the position in hole is higher than SMD pressure sensor, and the air can get into the circulation, breathes freely SMD pressure sensor.
Description
Technical Field
The utility model belongs to the technical field of flexible line way board production and specifically relates to a SMD pressure sensor protective sheath is related to.
Background
At present, with the coming of the 5G era, the internet of things era of all things interconnection is opened, the 5G commercial products break through the traditional mobile phones, computers and intelligent wearable equipment, and more artificial intelligent products enter the public visual field and become life standard. In the future, the 5G and the Internet of things collide, wearable equipment is rapidly popularized and becomes an important entrance and an application terminal of the Internet of things. Wearable devices, i.e. portable devices worn directly on the body or integrated into the clothing or accessories of the user. Wearable equipment is not only a hardware equipment, realizes powerful function through software support and data interaction, high in the clouds interaction more, and wearable equipment will bring important transition to our life, perception, and to realize this function, must install the sensor of multiple pattern on the product, and SMD pressure sensor is the most common one, and its common mode is through surface assembly technique laminating in the circuit board surface, links to each other with the circuit of circuit board in order to realize various functions.
The patch type pressure sensor has the working principle that pressure directly acts on a diaphragm of the sensor to enable the diaphragm to generate micro displacement in direct proportion to the pressure of a medium, so that the resistance of the sensor changes, the change is detected by an electronic circuit, and a digital standard signal corresponding to the pressure is converted and output. Therefore, the diaphragm of the sensor plays an important role and directly influences the precision of the sensor, the diaphragm of the sensor is usually exposed on the outer surface, a large amount of dust particles and impurities are deposited on the diaphragm in the surface assembly technology, function test, auxiliary material attaching and packaging transportation links, the sensor loses the function, meanwhile, the diaphragm is damaged badly easily due to the assembly operation problems of various personnel, a large amount of products are scrapped, and the yield is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a SMD pressure sensor protective sheath can cover SMD pressure sensor, protects the sensor.
An embodiment of the utility model provides a SMD pressure sensor protective sheath is provided, include: the cylindrical shell is sealed at the top end, a hollow cavity is formed inside the cylindrical shell and penetrates through the bottom end of the cylindrical shell, a hole is formed in the side face of the cylindrical shell and communicated with the hollow cavity, the side face of the cylindrical shell can cover the side face of the patch type pressure sensor, and the hole is formed in the upper portion of the patch type pressure sensor.
The utility model discloses SMD pressure sensor protective sheath has following beneficial effect at least:
the utility model discloses SMD pressure sensor protective sheath can cover SMD pressure sensor, and when SMD pressure sensor protective sheath covered the sensor, the position in hole was higher than the sensor, and the air can get into the circulation, breathes freely to the sensor.
According to other embodiments of the present invention, the protective cover for a surface mount type pressure sensor has an outer diameter of 4.5-5.0mm and an inner diameter of 3.0-3.2 mm.
According to the utility model discloses a SMD pressure sensor protective sheath of other embodiments, cylindrical housing's external diameter is 4.6mm, and the internal diameter is 3.1 mm.
According to other embodiments of the present invention, the inner diameter of the cylindrical casing is smaller than the diameter of the patch type pressure sensor by 0.4-0.6 mm.
According to the utility model discloses a SMD pressure sensor protective sheath of other embodiments, the interior diameter ratio of cylindrical shell SMD pressure sensor's diameter is little by 0.5 mm.
According to the utility model discloses a SMD pressure sensor protective sheath of other embodiments, the hole is the circular port, the diameter of circular port is 0.7-0.8 mm.
According to the utility model discloses a SMD pressure sensor protective sheath of other embodiments, the diameter of circular port is 0.79 mm.
According to the utility model discloses a SMD pressure sensor protective sheath of other embodiments, cylindrical shell is the rubber preparation. The protective sleeve made of rubber has certain strength and elasticity.
Drawings
Fig. 1 is a schematic view of a protective cover of a patch type pressure sensor according to an embodiment of the present invention;
fig. 2 is a schematic view of a patch type pressure sensor according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating the combination of a protective sleeve of a patch type pressure sensor and the patch type pressure sensor according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a single flexible circuit board according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a plurality of flexible circuit boards according to an embodiment of the present invention;
fig. 6 is an assembly schematic diagram of the patch type pressure sensor protective sleeve, the patch type pressure sensor and the single flexible circuit board according to the embodiment of the present invention.
Reference numerals: cylindrical shell 1, hole 11, SMD pressure sensor 2, diaphragm 22, flexible circuit board 3.
Detailed Description
The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
Example one
The embodiment of the utility model provides a SMD pressure sensor protective sheath is provided, include: cylindrical housing 1, cylindrical housing 1's top is sealed, and cylindrical housing 1 is inside to be formed with hollow chamber to link up cylindrical housing 1's bottom, cylindrical housing 1's side is provided with hole 11, and hole 11 is linked together with hollow chamber, and cylindrical housing 1's side can cover SMD pressure sensor 2's side, and hole 11 sets up in SMD pressure sensor 2 top. It is worth to say that, in order to make the protection effect to SMD pressure sensor 2 better, set up the side of cylindrical shell 1 to the side that can cover SMD pressure sensor 2 completely, also belong to the protection scope of the utility model.
The embodiment of the utility model provides a SMD pressure sensor protective sheath has following beneficial effect at least:
the utility model provides a SMD pressure sensor protective sheath can cover SMD pressure sensor 2, and when SMD pressure sensor protective sheath 1 covered SMD pressure sensor 2, the position in hole 11 was higher than SMD pressure sensor 2, and the air can get into the circulation, breathes freely SMD pressure sensor 2.
Example two
An embodiment of the utility model provides a SMD pressure sensor protective sheath is provided, include: cylindrical housing 1, cylindrical housing 1's top is sealed, cylindrical housing 1 is inside to be formed with hollow chamber, and link up cylindrical housing 1's bottom, cylindrical housing 1's side is provided with hole 11, hole 11 is linked together with hollow chamber, cylindrical housing 1's side can cover SMD pressure sensor 2's side, when cylindrical housing 1's side covers SMD pressure sensor 2's side, hole 11 sets up in SMD pressure sensor 2 top, hole 11's high whole is higher than SMD pressure sensor 0.3mm, be convenient for outside air flows into SMD pressure sensor 2 through hole 11. An opening is reserved at one end of the protective sleeve, and the other end of the protective sleeve is closed. The protective sleeve is made of rubber and has certain strength and elasticity, wherein the outer diameter is 4.5-5.0mm, and the inner diameter is 3.0-3.2 mm. The inner diameter of the protective sleeve is 0.4-0.6mm smaller than the diameter of the sensor. Wherein, preferred scheme is that the external diameter is 4.6mm, and the internal diameter is 3.1mm, and the internal diameter of protective sheath is less than 0.5mm than the diameter of sensor, utilizes the elasticity that the protective sheath has to tightly wrap up the sensor, prevents to drop.
EXAMPLE III
The following description is provided as a specific example of how a protective sleeve for a patch pressure sensor protects a patch pressure sensor. The embodiment relates to a method for protecting a patch type pressure sensor, which comprises the following specific steps:
referring to fig. 4 and 5, the first step: firstly, a single flexible circuit board 3 drawing is prefabricated, a whole makeup is made, a to-be-assembled state is made through the working procedures of cutting, drilling, copper plating, line forming, coating film attaching, gold melting, high-pressure testing and the like, then the whole flexible circuit board is inspected, an unqualified product is marked, and finally the flexible circuit board 3 is subjected to surface assembly technology processing, and a surface mount type pressure sensor 2 and other devices are mounted.
The second step is that: and (5) manufacturing a protective sleeve. The material of protective sheath is rubber products, has certain intensity and elasticity, and the colour is yellow, the discernment of being convenient for, and the shape is cylindrical, and thickness is 0.75mm, and wherein the external diameter is 4.6mm, and the internal diameter is 3.1mm, and the protective sheath is less than SMD pressure sensor diameter by 0.5 mm. An opening is reserved at one end of the protective sleeve, and the other end of the protective sleeve is closed. The circular hole 11 with the diameter of 0.79mm is preset on the cylindrical hole wall, the height of the hole 11 is 0.3mm higher than that of the sensor, and therefore the external air can conveniently flow into the patch type pressure sensor 2 through the hole 11.
Referring to fig. 6, the third step: a protective sleeve is used to protect the patch pressure sensor diaphragm 22. And (4) inspecting the whole flexible circuit board after surface assembly, and inspecting whether the device is missed or damaged. The protective sleeve covers the patch type pressure sensor 2, so that the side surface and the top of the patch type pressure sensor 2 are completely covered by the protective sleeve, no gap is left at the bottom, and the protective sleeve does not touch the diaphragm 22 of the pressure sensor so as to avoid damaging the diaphragm 22.
The fourth step: and (5) processing a finished product. The whole flexible circuit board 3 with the protective sleeve is processed, auxiliary materials are attached, and the appearance and function test is conducted in a punching mode, and due to the fact that the protective sleeve is provided with the holes 11, external air pressure can act on the diaphragm 22 of the pressure sensor, the surface-mounted pressure sensor 2 can conduct functional test under the condition that the protective sleeve is taken, the functions of the sensor and the welding function of the flexible circuit board are normal, and finally the single flexible circuit board 3 is inspected, packaged and shipped. The protective sleeve is prevented from falling off in the whole operation process.
The fifth step: the equipment is gone on the line, and after the stick flexible circuit board 3 reachd the customer end, the equipment is gone on the line, gets the protective sheath of SMD pressure sensor 2 this moment, assembles flexible circuit board 3 to the relevant position of intelligent wrist-watch, retrieves the protective sheath simultaneously, carries out cleaning to the protective sheath, but treats to examine under the condition of damage and cleanness repeatedly usable.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (8)
1. The utility model provides a SMD pressure sensor protective sheath which characterized in that includes: the cylindrical shell is sealed at the top end, a hollow cavity is formed inside the cylindrical shell and penetrates through the bottom end of the cylindrical shell, a hole is formed in the side face of the cylindrical shell and communicated with the hollow cavity, the side face of the cylindrical shell can cover the side face of the patch type pressure sensor, and the hole is formed in the upper portion of the patch type pressure sensor.
2. The patch type pressure sensor protective sheath according to claim 1, wherein the cylindrical shell has an outer diameter of 4.5-5.0mm and an inner diameter of 3.0-3.2 mm.
3. The patch pressure sensor protective sheath of claim 2, wherein the cylindrical housing has an outer diameter of 4.6mm and an inner diameter of 3.1 mm.
4. The patch pressure sensor protective sheath of claim 1, wherein the inner diameter of the cylindrical housing is 0.4-0.6mm smaller than the diameter of the patch pressure sensor.
5. The patch pressure sensor protective sheath of claim 4, wherein the inner diameter of the cylindrical housing is 0.5mm smaller than the diameter of the patch pressure sensor.
6. The patch type pressure sensor protective sleeve according to claim 1, wherein the hole is a circular hole, and the diameter of the circular hole is 0.7-0.8 mm.
7. The patch pressure sensor protective sheath of claim 6, wherein the circular hole has a diameter of 0.79 mm.
8. The patch type pressure sensor protective sheath of claim 1, wherein the cylindrical housing is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343107.7U CN211401534U (en) | 2019-12-23 | 2019-12-23 | SMD pressure sensor protective sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922343107.7U CN211401534U (en) | 2019-12-23 | 2019-12-23 | SMD pressure sensor protective sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211401534U true CN211401534U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922343107.7U Active CN211401534U (en) | 2019-12-23 | 2019-12-23 | SMD pressure sensor protective sheath |
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| Country | Link |
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| CN (1) | CN211401534U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112286244A (en) * | 2020-11-04 | 2021-01-29 | 四川大学 | Intelligent drum capable of monitoring temperature and PH value in real time and use method thereof |
| CN113907747A (en) * | 2021-09-26 | 2022-01-11 | 绍兴文理学院元培学院 | Intelligent spine curvature monitoring system and method |
-
2019
- 2019-12-23 CN CN201922343107.7U patent/CN211401534U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112286244A (en) * | 2020-11-04 | 2021-01-29 | 四川大学 | Intelligent drum capable of monitoring temperature and PH value in real time and use method thereof |
| CN113907747A (en) * | 2021-09-26 | 2022-01-11 | 绍兴文理学院元培学院 | Intelligent spine curvature monitoring system and method |
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