CN117803639A - Preparation method of flexible support of low-voltage sensing device - Google Patents
Preparation method of flexible support of low-voltage sensing device Download PDFInfo
- Publication number
- CN117803639A CN117803639A CN202311700811.8A CN202311700811A CN117803639A CN 117803639 A CN117803639 A CN 117803639A CN 202311700811 A CN202311700811 A CN 202311700811A CN 117803639 A CN117803639 A CN 117803639A
- Authority
- CN
- China
- Prior art keywords
- adhesive
- layer
- flexible
- sensing device
- pressure sensing
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 169
- 230000001070 adhesive effect Effects 0.000 claims abstract description 169
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 112
- 238000000034 method Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000007650 screen-printing Methods 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000004822 Hot adhesive Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a preparation method of a flexible support of a low-voltage sensing device, and belongs to the field of low-voltage sensing devices. Providing a flexible adhesive; spraying a first layer of adhesive onto a plurality of positions on the bottom surface of a target to be mounted; curing the first layer of adhesive; spraying a second layer of adhesive onto the cured first layer of adhesive, wherein the spraying position and shape of the second layer of adhesive are consistent with those of the cured first layer of adhesive; inserting a low pressure sensing device into the second layer of adhesive, curing the second layer of adhesive; the cured first layer of adhesive and the second layer of adhesive serve as flexible supports for the low-pressure sensing device, and the low-pressure sensing device is mounted at the bottom surface of the target through the flexible supports and keeps a mounting distance from the bottom surface of the target. The invention can ensure that the fixed distance between the sensor and the target bottom surface is kept after the low-pressure sensing device is attached to the target bottom surface, and can bear the small-amplitude stress deformation of the bottom surface.
Description
Technical Field
The invention relates to the field of low-pressure sensing devices, in particular to a preparation method of a flexible support of a low-pressure sensing device.
Background
A low pressure sensor, such as a tank pressure sensor, is typically mounted on the attached bottom surface in a manner that allows for slight relative movement between the sensor and the bottom surface. This is because such sensors are very sensitive to stresses and strains that can affect the accuracy of the sensor and even cause damage to the sensor. In addition, in order for the sensor to function properly, the sensor must be maintained at a certain mounting distance from the bottom surface.
Conventional methods of mounting such sensors to a bottom surface include mounting the sensor using adhesives, holding the sensor at a distance using more complex devices during curing, or using other less efficient pressure buffering devices. One particular conventional approach is to place glass beads in the hot adhesive to maintain the spacing between the sensor and the bottom surface during curing of the adhesive.
Since the conventional method requires the introduction of an additional device, the installation process is complicated, and there is a need in the industry for an improved method of attaching a sensing device such as a tank pressure sensor to a bottom surface such as an interior of an automobile tank while maintaining a certain buffer distance from the bottom surface.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a preparation method of a flexible support of a low-pressure sensing device, which can ensure that a fixed distance is kept between a sensor and a target bottom surface after the low-pressure sensing device is attached to the target bottom surface and can bear small-amplitude stress deformation of the bottom surface.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a method of manufacturing a flexible stent for a low pressure sensing device, comprising:
providing a flexible adhesive;
spraying a first layer of adhesive onto a plurality of positions on the bottom surface of a target to be mounted;
curing the first layer of adhesive;
spraying a second layer of adhesive onto the cured first layer of adhesive, wherein the spraying position and shape of the second layer of adhesive are consistent with those of the cured first layer of adhesive; the spraying shape is preferably a plurality of evenly distributed ellipses, the ellipses have a specific height, and channels for fluid to circulate are reserved between the adjacent ellipses;
inserting a low pressure sensing device into the second layer of adhesive, curing the second layer of adhesive; the cured first layer of adhesive and the second layer of adhesive serve as flexible supports for the low-pressure sensing device, and the low-pressure sensing device is mounted at the bottom surface of the target through the flexible supports and keeps a mounting distance from the bottom surface of the target.
Preferably, when the first layer of adhesive is sprayed, the thickness of the first layer of adhesive is controlled to be not lower than the minimum mounting distance.
Preferably, the low pressure sensing device is controlled to contact the top layer of the cured first layer of adhesive while the low pressure sensing device is inserted into the second layer of adhesive.
Preferably, the first layer of adhesive and the second layer of adhesive are sprayed by a screen printing process.
Preferably, a channel is provided in the flexible support for fluid communication between the low pressure sensing device and the bottom surface.
Preferably, the thickness of the second layer of adhesive is less than the thickness of the first layer of adhesive.
Preferably, the low pressure sensor is a tank pressure sensor mountable to an inside of a vehicle gasoline tank for detecting a vapor pressure in the tank.
Preferably, the flexible adhesive is a gasoline resistant silicone-based adhesive. The invention has the beneficial effects that: the invention can keep a fixed distance between the low-voltage sensor and the bottom surface of the target to be installed and can bear small-amplitude stress deformation of the substrate, so that the installation of the sensor becomes simpler and more accurate, and the sensor is ensured to avoid the damage of the sensor caused by stress deformation while the measurement precision is kept.
Drawings
FIG. 1 is a schematic view of an overall apparatus after a low pressure sensing device is mounted on a target floor by a flexible mount by the method of the present invention;
FIG. 2 is a side view of the device of FIG. 1;
fig. 3 is a partial method diagram at a shown in fig. 2.
In the figure: 1-a low pressure sensing device comprising a flexible support; 2-a sensor; 3-designating a distance; 4-bottom surface; 5-a flexible adhesive; 6-a first layer of adhesive; 7-a top surface of the first layer of adhesive; 8-a second layer of adhesive; 9-a second adhesive ultrathin portion between the first adhesive layer and the sensor; 10-steam port.
Detailed Description
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The invention discloses a preparation method of a flexible support of a low-voltage sensing device, which mainly comprises the following steps:
s1, providing a flexible adhesive;
s2, spraying a first layer of adhesive on a plurality of positions of a target bottom surface to be installed;
s3, curing the first layer of adhesive;
s4, spraying a second layer of adhesive onto the cured first layer of adhesive, wherein the spraying position and shape of the second layer of adhesive are consistent with those of the cured first layer of adhesive;
s5, inserting a low-pressure sensing device into the second layer of adhesive, and curing the second layer of adhesive; the cured first layer of adhesive and the second layer of adhesive serve as flexible supports for the low-pressure sensing device, and the low-pressure sensing device is mounted at the bottom surface of the target through the flexible supports and keeps a mounting distance from the bottom surface of the target.
To better illustrate the implementation of the above-described manufacturing method, fig. 1 presents a schematic view of the whole device after mounting the low-pressure sensing device on the target bottom surface by means of the method proposed by the present invention, comprising a low-pressure sensing device 1 comprising a flexible support, and a sensor 2 attached at a specified distance 3 from the bottom surface 4 using a specified flexible adhesive 5, wherein a first layer of adhesive 6 of the flexible adhesive 5 is attached to the bottom surface 4.
As shown in fig. 2, the thickness of the first layer of adhesive 6 of the flexible adhesive 5 is approximately equal to the specified distance 3 and the sensor 2 is attached to the top surface 7 of the first layer of adhesive of the flexible adhesive 5 by the second layer of adhesive 8 of the flexible adhesive 5.
As shown in fig. 3, the second layer of adhesive 8 of the flexible adhesive 5 has a thickness that is less than the thickness of the first layer of adhesive 6 of the flexible adhesive 5 and is positioned between the sensor 2 and the first layer of adhesive 6 of the flexible adhesive 5 to secure the sensor 2 to the top surface 7 of the first layer of adhesive of the flexible adhesive 5.
The flexible adhesive 5 may be any conventional adhesive that cures to a solid, but the present invention employs a flexible adhesive in view of the sensitivity of the sensor 2 mounted on the bottom surface 4; the pressure sensor and the strain sensor are very sensitive to stresses and must be able to bend relative to the bottom surface 4, otherwise there is a risk of damaging the sensor 2.
In the embodiment of the invention, the sensor 2 is a tank pressure sensor, and is installed in an automobile tank. The tank pressure sensor is directly mounted on the vapor port 10 to measure the pressure of the gasoline vapor in the tank. For environmental reasons, the preferred flexible adhesive 5 is a silicon-based, gasoline-resistant adhesive. This type of flexible adhesive 5 is common in the industry and any suitable adhesive based on the environment and the type of sensor 2 used is suitable.
Before mounting the sensor 2 to the bottom surface 4, a suitable flexible adhesive 5 needs to be selected. As mentioned above, flexible adhesive 5 is common in the industry and a suitable adhesive must be selected depending on the environment in which sensor 2 is installed and the type of sensor 2. A first layer of adhesive 6 of flexible adhesive 5 is sprayed onto the bottom surface 4 and cured in place. In an embodiment of the invention, the first layer of adhesive 6 of the flexible adhesive 5 is sprayed onto the bottom surface 4 by a screen printing process. Since the screen printing process can deposit the flexible adhesive 5 onto the bottom surface 4 in a controlled manner, and the screen printing process can also control the thickness of the first layer of adhesive 6 of the flexible adhesive 5, the first layer of adhesive 6 of the flexible adhesive 5 can also be deposited onto the bottom surface 4 in a specific shape that is suitable for the particular sensor 2 application. It will be appreciated that any method of spraying the flexible adhesive 5 is suitable as long as the thickness of the sprayed layer is controlled and the flexible adhesive 5 is sprayed in the desired shape.
In the embodiment of the present invention, the first layer of adhesive 6 shown in fig. 1 is placed on the bottom surface 4 in a pattern of eight oval arcuate segments. As shown in fig. 2, each of the eight elliptical segments has a specific height that is approximately equal to the predetermined distance 3 that the sensor 2 must be spaced from the bottom surface 4.
The flexible adhesive 5 is preferably applied in a viscous state. The first layer of adhesive 6 is sprayed onto the bottom surface 4 and then cured to a solid, but the flexible adhesive 5 remains flexible, ensuring that it accommodates slight relative movement between the sensor 2 and the bottom surface 4 to prevent stresses from being transferred from the bottom surface 4 to the sensor 2 and causing damage to the sensor 2. It will also be appreciated that the first layer of adhesive 6 of the flexible adhesive 5 need not be fully cured prior to placing the sensor 2 on the first layer of adhesive 6, but only to an extent sufficient to support the pressure exerted on the sensor 2 while it is attached to the first layer of adhesive 6 so as not to change its shape and maintain the predetermined distance 3.
After the first layer of adhesive 6 of the flexible adhesive 5 is substantially cured, a second layer of adhesive 8 of the flexible adhesive 5 is sprayed onto the top surface 7 of the cured first layer of adhesive 6 of the flexible adhesive 5. The thickness of the second layer of adhesive 8 is thinner than the first layer of adhesive 6, since the purpose of the second layer of adhesive 8 is to provide only one attachment layer between the sensor 2 and the first layer of adhesive 6. The second layer of adhesive 8 is preferably sprayed onto the top surface 7 of the first layer of adhesive 6 by the same screen printing process as the first layer of adhesive 6. Also, the screen printing process can control the thickness of the second layer of adhesive 8 and make the spray pattern of the second layer of adhesive 8 identical to the shape of the first layer of adhesive 6. In the embodiment of the present invention, the second layer of adhesive 8 is sprayed by the same screen printing process as the first layer of adhesive 6, so that the number of different equipment required for manufacturing the apparatus 1 can be reduced, and the sprayed shape of the second layer of adhesive 8 can be ensured to match the sprayed shape of the first layer of adhesive 6. Also, as with the first layer of adhesive 6, any method that can control the thickness of the second layer of adhesive 8 and cause the flexible adhesive 5 to spray in the desired shape is suitable.
As shown in fig. 3, after the second layer of adhesive 8 is sprayed onto the top surface 7 of the first layer of adhesive 6, the sensor 2 is pressed into the second layer of adhesive 8 of the flexible adhesive 5 until the sensor 2 substantially rests on the top surface 7 of the first layer of adhesive 6, immediately before the second layer of adhesive 8 cures. As mentioned above, the first layer of adhesive 6 is sprayed at a thickness approximately equal to the predetermined distance 3 that the sensor 2 must maintain from the bottom surface 4.
When the sensor 2 is pressed into the second layer of adhesive 8 of the flexible adhesive 5, only an extremely thin portion 9 of the second layer of adhesive 8 remains between the sensor 2 and the top surface 7 of the first layer of adhesive 6 of the flexible adhesive 5. An extremely thin portion 9 of the second layer of adhesive 8 left between the first layer of adhesive 6 and the sensor 2 connects the sensor 2 to the first layer of adhesive 6. Although the sensor 2 does not rest directly on the top surface 7 of the first layer of adhesive 6, the thickness of the very thin portion 9 of the second layer of adhesive 8 is negligible compared to the predetermined distance 3 that the sensor 2 must maintain with the bottom surface 4. Alternatively, the thickness of the second layer 8 of flexible adhesive 5 does not affect the performance of the sensor 2. When the sensor 2 is attached to the top surface 7 of the first layer of adhesive 6 of the flexible adhesive 5, the sensor 2 will automatically maintain the proper spacing 3 from the bottom surface 4. This allows the sensor 2 to be mounted directly on the bottom surface 4 and ensures that a suitable distance is maintained between the bottom surface 4 and the sensor 2 without the use of any other measuring means to ensure its accuracy. The screen printing process ensures that the thickness of the first layer of adhesive 6 of the flexible adhesive 5 is accurate and that once the curing of the first layer of adhesive 6 is completed, the distance 3 between the top surface 7 and the bottom surface 4 of the first layer of adhesive 6 is determined, thereby making the mounting of the sensor 2 simpler and more accurate.
After the sensor 2 is inserted into the second layer of adhesive 8 of the flexible adhesive 5 and rests on the top surface 7 of the first layer of adhesive 6, the second layer of adhesive 8 is cured. After curing is completed, the sensor 2 will be brought into close proximity with the top surface 7 of the first layer of adhesive 6 and maintained at the appropriate distance 3. Both the first layer of adhesive 6 and the second layer of adhesive 8 allow for slight relative movement between the sensor 2 and the bottom surface 4 to prevent any stress from being transferred from the bottom surface 4 to the sensor 2.
In the embodiments of the present invention, it will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, but although the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical details of the foregoing embodiments or equivalents of some of the technical features thereof. Modifications, equivalents, and the like, which are within the spirit and scope of the present invention, are intended to be included in the present invention.
Claims (8)
1. A method for preparing a flexible stent of a low pressure sensing device, comprising:
providing a flexible adhesive;
spraying a first layer of adhesive onto a plurality of positions on the bottom surface of a target to be mounted;
curing the first layer of adhesive;
spraying a second layer of adhesive onto the cured first layer of adhesive, wherein the spraying position and shape of the second layer of adhesive are consistent with those of the cured first layer of adhesive;
inserting a low pressure sensing device into the second layer of adhesive, curing the second layer of adhesive; the cured first layer of adhesive and the second layer of adhesive serve as flexible supports for the low-pressure sensing device, and the low-pressure sensing device is mounted at the bottom surface of the target through the flexible supports and keeps a mounting distance from the bottom surface of the target.
2. The method of manufacturing a flexible stent for a low pressure transducer according to claim 1, wherein the thickness of the first adhesive layer is controlled to be not less than a minimum mounting distance when the first adhesive layer is sprayed.
3. A method of manufacturing a flexible stent for a low pressure sensing device as defined in claim 1, wherein the low pressure sensing device is controlled to contact a top layer of the cured first layer of adhesive when the low pressure sensing device is inserted into the second layer of adhesive.
4. The method of manufacturing a flexible stent for a low pressure transducer of claim 1 wherein the first layer of adhesive and the second layer of adhesive are applied by a screen printing process.
5. A method of manufacturing a flexible carrier for a low pressure sensing device according to claim 1, wherein the flexible carrier is provided with a channel for fluid communication between the low pressure sensing device and the bottom surface.
6. The method of manufacturing a flexible stent for a low pressure sensing device of claim 1, wherein the thickness of the second layer of adhesive is less than the thickness of the first layer of adhesive.
7. A method of manufacturing a flexible support for a low pressure sensor device according to claim 1, wherein the low pressure sensor is a tank pressure sensor mountable to the interior of a vehicle petrol tank for detecting the vapour pressure in the tank.
8. The method of claim 7, wherein the flexible adhesive is a gasoline resistant silicone-based adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311700811.8A CN117803639A (en) | 2023-12-12 | 2023-12-12 | Preparation method of flexible support of low-voltage sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311700811.8A CN117803639A (en) | 2023-12-12 | 2023-12-12 | Preparation method of flexible support of low-voltage sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117803639A true CN117803639A (en) | 2024-04-02 |
Family
ID=90424304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311700811.8A Pending CN117803639A (en) | 2023-12-12 | 2023-12-12 | Preparation method of flexible support of low-voltage sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117803639A (en) |
-
2023
- 2023-12-12 CN CN202311700811.8A patent/CN117803639A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100220206B1 (en) | Jig for transporting substrate and production of liquid crystal display element by using the same | |
| JP5335156B2 (en) | Substrate holding device | |
| US8133640B2 (en) | Apparatus and method for mounting pellicle | |
| CN108784670B (en) | Flexible adsorbent equipment and its manufacturing method | |
| US20160361736A1 (en) | Coating Method and Coating Device | |
| CN117803639A (en) | Preparation method of flexible support of low-voltage sensing device | |
| US6752022B2 (en) | Compliant standoff for low pressure sensing device | |
| CN112174542A (en) | Glass cover plate and preparation method thereof, display panel and display device | |
| WO2014180132A1 (en) | Film thickness testing method and device | |
| CN113380852A (en) | Display panel manufacturing method, display panel and display device | |
| CN108262941B (en) | Soft-to-hard film pasting process and film pasting product | |
| CN206666631U (en) | A kind of linear evaporation source system and evaporation coating device | |
| WO2021103702A9 (en) | Test method for bending stiffness, testing device, and test method for display panel | |
| WO2010057091A2 (en) | Flexible transducer structures | |
| CN101524679B (en) | Film coating method | |
| US11613069B2 (en) | Method of forming a curved, rigid display article | |
| KR102208888B1 (en) | Packaging method, packaging device, and terminal | |
| CN111649867A (en) | Pressure sensor die attach | |
| CN110727148A (en) | Liquid crystal chip packaging structure, method, projection display and projection display system | |
| CN112857631B (en) | Core structure and pressure sensor | |
| US20080214083A1 (en) | Alignment layer printing apparatus and method of printing using the same | |
| WO2009028896A1 (en) | Apparatus measuring stress of coating | |
| CN109073494A (en) | test device and calibration method | |
| CN218887155U (en) | Object stage for placing epitaxial wafer | |
| CN218171060U (en) | Rubber membrane preparation mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |