CN109211294A - The jamproof sensor protection lid of high temperature resistant - Google Patents
The jamproof sensor protection lid of high temperature resistant Download PDFInfo
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- CN109211294A CN109211294A CN201811214840.2A CN201811214840A CN109211294A CN 109211294 A CN109211294 A CN 109211294A CN 201811214840 A CN201811214840 A CN 201811214840A CN 109211294 A CN109211294 A CN 109211294A
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- lid
- carbon fiber
- silver
- layer
- jamproof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/26—Windows; Cover glasses; Sealings therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
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- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
This application involves a kind of jamproof sensor protection lid of high temperature resistant, including lid, the inner wall of lid is equipped with the protrusion of annular；Rubber seal is also fixedly installed on the inner wall of the lid, wherein rubber seal is located at the inner side of protrusion；The inner top of the lid is equipped with foamed damping pad, is also fitted with electromagnetic shielding unit on the outer wall of the lid；The electromagnetic shielding unit is double-layer structure setting, including the suction wave layer being arranged on lid outer wall and the ducting layer inhaled on wave layer is set, the ducting layer uses red copper latten, the suction wave layer is using silicon rubber as matrix, and fill silver-plated carbon fiber, carbon fiber is corynebacterium, and random distribution is wherein.
Description
Technical field
This application involves sensor technical field more particularly to a kind of jamproof sensor protection lids of high temperature resistant.
Background technique
Sensor is a kind of detection device, can experience measured information, and the information that can will be experienced, by a set pattern
Rule is for conversion into electric signal or the information output of other required forms, to meet transmission, processing, storage, the display, record of information
With control etc. require.
The characteristics of sensor includes: micromation, digitlization, intelligence, multifunction, systematization, networking.It is to realize
The automatic primary link detected and automatically control.For existing sensor, structure tends to minimize, so that passing
Sensor does not influence the normal operation for being measured equipment, while multiple sensors may be implemented in the case where saving installation space
Installation, since sensor belongs to precision instruments, needs to be subject to when not in use effective protection, at present protection cap on the market
Simple plastic lid form is mostly used, can not effectively realize the isolation to external electromagnetic interference and steam, therefore hold
Operative sensor circuit is easily caused to damage.
Summary of the invention
The present invention is intended to provide a kind of jamproof sensor protection lid of high temperature resistant, set forth above to solve the problems, such as.
A kind of jamproof sensor protection lid of high temperature resistant, including lid are provided in the embodiment of the present invention, lid
Inner wall is equipped with the protrusion of annular；Rubber seal is also fixedly installed on the inner wall of the lid, wherein rubber seal position
In the inner side of protrusion；The inner top of the lid is equipped with foamed damping pad, is also fitted with electricity on the outer wall of the lid
Magnetic shield unit；The electromagnetic shielding unit is double-layer structure setting, including the suction wave layer being arranged on lid outer wall and setting
The ducting layer on wave layer is being inhaled, the ducting layer uses red copper latten, and the suction wave layer is filled out using silicon rubber as matrix
Silver-plated carbon fiber is filled, carbon fiber is corynebacterium, and random distribution is wherein.
The technical solution that the embodiment of the present invention provides can include the following benefits:
Advantages of simple of the present invention, it is easy to use, rubber seal is also fixedly installed on the inner wall of lid, wherein rubber is close
Seal be located at protrusion inner side, in this way lid button on a sensor when, rubber seal may be implemented to sensor head
The case where end is sealed, and may be implemented in this way to sensor head end effective protection, prevents infiltration, on the outer wall of lid also
It is fitted with electromagnetic shielding unit, the inside of lid can be made to realize effectiveness using electromagnetic shielding unit, it is outer in this way
Wall high-intensity magnetic field will not impact sensor, so that sensor accuracy not will receive variation, so as to prolonged use.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.It should be understood that above general description and following detailed description are only
Be it is exemplary and explanatory, the application can not be limited.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of sensor protection lid of the present invention；
Wherein, 1- electromagnetic shielding film, 2- foamed damping pad, 3- protrusion, 4- lid, 5- rubber seal.
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 embodiments consistented with the present invention.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 of the invention are consistent.
Embodiments herein is related to a kind of jamproof sensor protection lid of high temperature resistant, including lid 4, lid 4 it is interior
Wall is equipped with the protrusion 3 of annular, cooperates the groove on sensor outer housing to realize the button between lid 4 and sensor using protrusion 3
Close connection；It is also fixedly installed with rubber seal 5 on the inner wall of the lid 4, wherein rubber seal 5 is located at the interior of protrusion 3
Side position, in this way when lid 4 is detained on a sensor, rubber seal 5 may be implemented to be sealed sensor head end, in this way
The case where may be implemented to sensor head end effective protection, preventing infiltration；It is slow that the inner top of the lid 4 is equipped with foaming
Pad 2 is rushed, foamed damping pad 2 plays the role of buffering；It is additionally provided with electromagnetic shielding unit 1 on the outer wall of the lid 4, utilizes electromagnetism
Screen unit 1 can make the inside of lid 4 realize that effectiveness, such outer wall high-intensity magnetic field will not cause shadow to sensor
It rings, so that sensor accuracy not will receive variation, so as to prolonged use.
The lid 4 is made of engineering plastics material, and integral strength is higher.
The rubber seal 5 is fixed on the inner wall of lid 4 in the form of gluing.
The foamed damping pad 2 is fixed on the inner wall of lid 4 in the form of gluing.
The electromagnetic shielding unit 1 is double-layer structure setting, is existed including the suction wave layer being arranged on 4 outer wall of lid and setting
The ducting layer on wave layer is inhaled, the ducting layer uses red copper latten, and the suction wave layer is filled using silicon rubber as matrix
Silver-plated carbon fiber, carbon fiber are corynebacterium, and random distribution is wherein.It is double in the electromagnetic shielding unit of configuration aspects, the application
Layer structure is divided into ducting layer and suction wave layer, and the transmission to electromagnetic wave, guidance are layered with absorption and are carried out, and leads in structure design
Wave layer uses red copper latten, with good conductive and magnetic property, after can making Electromagnetic Wave Propagation to its surface
By feedback and conductive process, it can uniformly be transmitted to and inhale wave layer, maximize and improve wave absorbing efficiency；On the other hand, ducting layer
Red copper latten has compared with strong hardness, can be used as protection shell, inhales wave layer to inside and provides protection.In addition, prior
It is in the electromagnetic shielding unit of the application, to inhale wave layer using silicon rubber as matrix, and fill silver-plated carbon fiber, carbon fiber is short
Rodlike, random distribution wherein, forms irregular conductive magneto-conductive network, substantially increases effectiveness.The electricity of the application
Design of the magnetic shield unit in terms of structure and material plays unexpected effect in terms of effectiveness, and makes
It is standby simple, strong operability.
A kind of preferred embodiment is, in the red copper latten, copper content 76%, iron-content 13% contains zinc
Amount is 11%；By limiting above-mentioned copper, iron and Zn content, electromagnetic shielding unit is enabled to play more excellent electromagnetic shielding effect
Fruit.The ducting layer is with a thickness of 1mm.
A kind of preferred embodiment is that the suction wave layer is with a thickness of 3mm；
In inhaling wave layer, the silver-plated carbon fiber density is 80~120/cm2, it is respectively 3 that there are two types of length for tool
~5mm and 7~9mm；
It is arranged by two kinds of length, is easy to the formation of conductive net, works well for electromagnetic wave absorption, is had and expect not
The wave-absorbing effect arrived；
Preferably, also contain isopropanol as antifreezing agent in the suction wave layer；It can effectively enhance silicone rubber substrate and exist
Flexibility under low temperature prevents from being broken；
Preferably, the mass ratio of the 3~5mm and the silver-plated carbon fiber of 7~9mm length is 4:1；
Preferably, which is preferably dimensioned to be density 1.75g/cm3, 5 μm of diameter, wherein silver coating with a thickness of
200nm。
Disclosed herein as well is the preparation process of above-mentioned electromagnetic shielding unit:
S1 prepares ducting layer
S2 handles carbon fiber thermal, removes surface impurity；Then electroplating solution is configured, using silver plate as anode, at heat
Carbon fiber after reason is immersed in electroplating solution as cathode, anode and cathode, obtains silver-plated carbon fiber by plating；
Silver-plated carbon fiber is put into the silane coupling agent through diluting and impregnates 1min by S3, by silver-plated carbon fiber after drying
It is cut into 3~5mm and 7~9mm length；Then using open double rod refining glue machinings, use silicon rubber for matrix, silver-plated carbon
Fiber is filler, and isopropanol is antifreezing agent, and wave layer is inhaled in preparation；
S4 will inhale on the inside of wave layer insertion ducting layer, obtain the electromagnetic shielding unit.
Wherein, in S1, the preparation ducting layer specifically: ducting layer uses red copper latten material, and copper contains in material
Amount is 76%, and iron-content 13%, zinc content 11%, ducting layer is with a thickness of 1mm；
Wherein, in S2, the density of the carbon fiber is 1.75g/cm3, diameter is 5 μm；
It is described to handle carbon fiber thermal specifically: carbon fiber is placed in batch-type furnace at 400 DEG C and handles 30min,
The electroplating solution process for preparation are as follows: take silver sulfate, ammonium chloride, boric acid, dodecyl sodium sulfate preparation plating molten
Liquid, wherein content is followed successively by 120g/L, 16g/L, 15g/L, 2g/L, then uses ammonia water titration electroplating solution, makes its pH value
4.5；
It is described that silver-plated carbon fiber is obtained by plating specifically: in electroplating process, using mechanical stirring, and temperature is kept
At 30 DEG C, electroplating current density 3.0A/cm2, silver coating is with a thickness of 200nm；
Wherein, in S3, the silane coupling agent preparation process through diluting are as follows: vinyltriethoxysilane is dilute
It releases, solvent is the solution that water and ethyl alcohol are prepared, and each section mass ratio is silane -20%, ethyl alcohol -72%, water -8%；
Further explanation is made to the present invention combined with specific embodiments below:
Embodiment 1
A kind of electromagnetic shielding unit, the electromagnetic shielding unit are double-layer structure setting, and outer layer is ducting layer, and internal layer is to inhale wave
Layer, the ducting layer use red copper latten, and the suction wave layer fills silver-plated carbon fiber, carbon using silicon rubber as matrix
Fiber is corynebacterium, and random distribution is wherein.
The preparation process of the electromagnetic shielding unit are as follows:
S1, ducting layer use red copper latten material, and copper content is 76% in material, iron-content 13%, zinc content
It is 11%, ducting layer is with a thickness of 1mm；
S2, firstly, selecting carbon fiber, density 1.75g/cm, diameter is 5 μm, and carbon fiber is placed on 400 in batch-type furnace
30min is handled at DEG C, removes surface colloidal impurity；Then silver sulfate, ammonium chloride, boric acid, dodecyl sodium sulfate is taken to prepare electricity
Plating liquor, wherein content is followed successively by 120g/L, 16g/L, 15g/L, 2g/L, then uses ammonia water titration electroplating solution, makes its pH value
It is 4.5；Electroplating solution is placed in electroplanting device, using silver plate as anode in electroplanting device, carbon fiber is as cathode, anode
It is immersed in electroplating solution with cathode, in electroplating process, using mechanical stirring, and temperature is maintained at 30 DEG C, electroplating current
Density is 3.0A/cm2, silver coating obtains silver-plated carbon fiber with a thickness of 200nm；
S3, firstly, vinyltriethoxysilane is diluted, solvent is the solution that water and ethyl alcohol are prepared, each section ratio
For silane -20%, ethyl alcohol -72%, then silver-plated carbon fiber is put into the silane coupling agent through diluting and impregnates by water -8%
Silver-plated carbon fiber is cut into 3~5mm and 7~9mm length after drying by 1min；Then machined using open double rod refining glues,
Use silicon rubber for matrix, silver-plated carbon fiber is filler, and isopropanol is antifreezing agent, the silver-plated carbon fiber/silicon rubber of preparation flake
Material, wherein material thickness is 3mm, and silver-plated carbon fiber is uniformly distributed in material, and density is 80/cm2；Finally embed it in
On the inside of above-mentioned ducting layer, double-layer structure electromagnetic shielding unit is made.
Electromagnetic shielding aspect:
Electromagnetic shielding performance test is carried out to the electromagnetic shielding unit of the present embodiment, using E5071C type Network Analyzer method
Blue coaxial hair test, temperature is 30 DEG C, and humidity is 50% (RH).
Upper figure is that silver-plated carbon fiber density is 80/cm in the present embodiment electromagnetic shielding unit2When, test obtains compound electric
Magnetic shielding material electromagnet shield effect curve within the scope of 200~1200MHz, material electromagnetic shielding curve is more gentle, electromagnetism
Shield effectiveness is higher, between 65~86db.
Mechanical properties:
Tensile property test is carried out to silver-plated carbon fiber/silicon rubber electromagnetic shielding material of the application, due to carbon fiber
It is added, the tensile strength of material is larger, reaches 2.6Mpa, has preferable mechanical performance, not easy to break.
Embodiment 2
A kind of electromagnetic shielding unit, the electromagnetic shielding unit are double-layer structure setting, and outer layer is ducting layer, and internal layer is to inhale wave
Layer, the ducting layer use red copper latten, and the suction wave layer fills silver-plated carbon fiber, carbon using silicon rubber as matrix
Fiber is corynebacterium, and random distribution is wherein.
The preparation process of the electromagnetic shielding unit are as follows:
S1, ducting layer use red copper latten material, and copper content is 76% in material, iron-content 13%, zinc content
It is 11%, ducting layer is with a thickness of 1mm；
S2, firstly, selecting carbon fiber, density 1.75g/cm, diameter is 5 μm, and carbon fiber is placed on 400 in batch-type furnace
30min is handled at DEG C, removes surface colloidal impurity；Then silver sulfate, ammonium chloride, boric acid, dodecyl sodium sulfate is taken to prepare electricity
Plating liquor, wherein content is followed successively by 120g/L, 16g/L, 15g/L, 2g/L, then uses ammonia water titration electroplating solution, makes its pH value
It is 4.5；Electroplating solution is placed in electroplanting device, using silver plate as anode in electroplanting device, carbon fiber is as cathode, anode
It is immersed in electroplating solution with cathode, in electroplating process, using mechanical stirring, and temperature is maintained at 30 DEG C, electroplating current
Density is 3.0A/cm2, silver coating obtains silver-plated carbon fiber with a thickness of 200nm；
S3, firstly, vinyltriethoxysilane is diluted, solvent is the solution that water and ethyl alcohol are prepared, each section ratio
For silane -20%, ethyl alcohol -72%, then silver-plated carbon fiber is put into the silane coupling agent through diluting and impregnates by water -8%
Silver-plated carbon fiber is cut into 3~5mm and 7~9mm length after drying by 1min；Then machined using open double rod refining glues,
Use silicon rubber for matrix, silver-plated carbon fiber is filler, and isopropanol is antifreezing agent, the silver-plated carbon fiber/silicon rubber of preparation flake
Material, wherein material thickness is 3mm, and silver-plated carbon fiber is uniformly distributed in material, and density is 90/cm2；Finally embed it in
On the inside of above-mentioned ducting layer, double-layer structure electromagnetic shielding unit is made.
Electromagnetic shielding aspect:
Electromagnetic shielding performance test is carried out to the electromagnetic shielding unit of the present embodiment, using E5071C type Network Analyzer method
Blue coaxial hair test, temperature is 30 DEG C, and humidity is 50% (RH).
Upper figure is that silver-plated carbon fiber density is 90/cm in the present embodiment electromagnetic shielding unit2When, test obtains compound electric
Magnetic shielding material electromagnet shield effect curve within the scope of 200~1200MHz, material electromagnetic shielding curve is more gentle, electromagnetism
Shield effectiveness is higher, between 67~87db.
Mechanical properties:
Tensile property test is carried out to silver-plated carbon fiber/silicon rubber electromagnetic shielding material of the application, due to carbon fiber
It is added, the tensile strength of material is larger, reaches 2.5Mpa, has preferable mechanical performance, not easy to break.
Embodiment 3
A kind of electromagnetic shielding unit, the electromagnetic shielding unit are double-layer structure setting, and outer layer is ducting layer, and internal layer is to inhale wave
Layer, the ducting layer use red copper latten, and the suction wave layer fills silver-plated carbon fiber, carbon using silicon rubber as matrix
Fiber is corynebacterium, and random distribution is wherein.
The preparation process of the electromagnetic shielding unit are as follows:
S1, ducting layer use red copper latten material, and copper content is 76% in material, iron-content 13%, zinc content
It is 11%, ducting layer is with a thickness of 1mm；
S2, firstly, selecting carbon fiber, density 1.75g/cm, diameter is 5 μm, and carbon fiber is placed on 400 in batch-type furnace
30min is handled at DEG C, removes surface colloidal impurity；Then silver sulfate, ammonium chloride, boric acid, dodecyl sodium sulfate is taken to prepare electricity
Plating liquor, wherein content is followed successively by 120g/L, 16g/L, 15g/L, 2g/L, then uses ammonia water titration electroplating solution, makes its pH value
It is 4.5；Electroplating solution is placed in electroplanting device, using silver plate as anode in electroplanting device, carbon fiber is as cathode, anode
It is immersed in electroplating solution with cathode, in electroplating process, using mechanical stirring, and temperature is maintained at 30 DEG C, electroplating current
Density is 3.0A/cm2, silver coating obtains silver-plated carbon fiber with a thickness of 200nm；
S3, firstly, vinyltriethoxysilane is diluted, solvent is the solution that water and ethyl alcohol are prepared, each section ratio
For silane -20%, ethyl alcohol -72%, then silver-plated carbon fiber is put into the silane coupling agent through diluting and impregnates by water -8%
Silver-plated carbon fiber is cut into 3~5mm and 7~9mm length after drying by 1min；Then machined using open double rod refining glues,
Use silicon rubber for matrix, silver-plated carbon fiber is filler, and isopropanol is antifreezing agent, the silver-plated carbon fiber/silicon rubber of preparation flake
Material, wherein material thickness is 3mm, and silver-plated carbon fiber is uniformly distributed in material, and density is 100/cm2；Finally it is embedded into
To on the inside of above-mentioned ducting layer, double-layer structure electromagnetic shielding unit is made.
Electromagnetic shielding aspect:
Electromagnetic shielding performance test is carried out to the electromagnetic shielding unit of the present embodiment, using E5071C type Network Analyzer method
Blue coaxial hair test, temperature is 30 DEG C, and humidity is 50% (RH).
Upper figure is that silver-plated carbon fiber density is 100/cm in the present embodiment electromagnetic shielding unit2When, test obtains compound
Electromagnetic shielding material electromagnet shield effect curve within the scope of 200~1200MHz, material electromagnetic shielding curve is more gentle, electricity
Magnetic screen efficiency is higher, between 62~81db.
Mechanical properties:
Tensile property test is carried out to silver-plated carbon fiber/silicon rubber electromagnetic shielding material of the application, due to carbon fiber
It is added, the tensile strength of material is larger, reaches 2.3Mpa, has preferable mechanical performance, not easy to break.
Embodiment 4
A kind of electromagnetic shielding unit, the electromagnetic shielding unit are double-layer structure setting, and outer layer is ducting layer, and internal layer is to inhale wave
Layer, the ducting layer use red copper latten, and the suction wave layer fills silver-plated carbon fiber, carbon using silicon rubber as matrix
Fiber is corynebacterium, and random distribution is wherein.
The preparation process of the electromagnetic shielding unit are as follows:
S1, ducting layer use red copper latten material, and copper content is 76% in material, iron-content 13%, zinc content
It is 11%, ducting layer is with a thickness of 1mm；
S2, firstly, selecting carbon fiber, density 1.75g/cm, diameter is 5 μm, and carbon fiber is placed on 400 in batch-type furnace
30min is handled at DEG C, removes surface colloidal impurity；Then silver sulfate, ammonium chloride, boric acid, dodecyl sodium sulfate is taken to prepare electricity
Plating liquor, wherein content is followed successively by 120g/L, 16g/L, 15g/L, 2g/L, then uses ammonia water titration electroplating solution, makes its pH value
It is 4.5；Electroplating solution is placed in electroplanting device, using silver plate as anode in electroplanting device, carbon fiber is as cathode, anode
It is immersed in electroplating solution with cathode, in electroplating process, using mechanical stirring, and temperature is maintained at 30 DEG C, electroplating current
Density is 3.0A/cm2, silver coating obtains silver-plated carbon fiber with a thickness of 200nm；
S3, firstly, vinyltriethoxysilane is diluted, solvent is the solution that water and ethyl alcohol are prepared, each section ratio
For silane -20%, ethyl alcohol -72%, then silver-plated carbon fiber is put into the silane coupling agent through diluting and impregnates by water -8%
Silver-plated carbon fiber is cut into 3~5mm and 7~9mm length after drying by 1min；Then machined using open double rod refining glues,
Use silicon rubber for matrix, silver-plated carbon fiber is filler, and isopropanol is antifreezing agent, the silver-plated carbon fiber/silicon rubber of preparation flake
Material, wherein material thickness is 3mm, and silver-plated carbon fiber is uniformly distributed in material, and density is 120/cm2；Finally it is embedded into
To on the inside of above-mentioned ducting layer, double-layer structure electromagnetic shielding unit is made.
Electromagnetic shielding aspect:
Electromagnetic shielding performance test is carried out to the electromagnetic shielding unit of the present embodiment, using E5071C type Network Analyzer method
Blue coaxial hair test, temperature is 30 DEG C, and humidity is 50% (RH).
Upper figure is that silver-plated carbon fiber density is 120/cm in the present embodiment electromagnetic shielding unit2When, test obtains compound
Electromagnetic shielding material electromagnet shield effect curve within the scope of 200~1200MHz, material electromagnetic shielding curve is more gentle, electricity
Magnetic screen efficiency is higher, between 64~83db.
Mechanical properties:
Tensile property test is carried out to silver-plated carbon fiber/silicon rubber electromagnetic shielding material of the application, due to carbon fiber
It is added, the tensile strength of material is larger, reaches 2.7Mpa, has preferable mechanical performance, not easy to break.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of jamproof sensor protection lid of high temperature resistant, which is characterized in that including lid, the inner wall of lid is equipped with annular
Protrusion；Rubber seal is also fixedly installed on the inner wall of the lid, wherein rubber seal is located at the inside position of protrusion
It sets；The inner top of the lid is equipped with foamed damping pad, is also fitted with electromagnetic shielding unit on the outer wall of the lid；It is described
Unit is electromagnetically shielded as double-layer structure setting, including the suction wave layer being arranged on lid outer wall and the guided wave inhaled on wave layer is set
Layer, the ducting layer use red copper latten, and the suction wave layer fills silver-plated carbon fiber, carbon using silicon rubber as matrix
Fiber is corynebacterium, and random distribution is wherein.
2. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 1, which is characterized in that the lid is adopted
It is made of engineering plastics material.
3. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 1, which is characterized in that state rubber seal
Circle is fixed on the inner wall of lid in the form of gluing.
4. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 1, which is characterized in that the foaming is slow
Punching pad is fixed on the inner wall of lid in the form of gluing.
5. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 1, which is characterized in that the red copper is closed
In golden thin plate, copper content 76%, iron-content 13%, zinc content 11%.
6. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 5, which is characterized in that the ducting layer
With a thickness of 1mm.
7. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 1, which is characterized in that inhaling wave layer
In, the silver-plated carbon fiber density is 80~120/cm2, it is respectively 3~5mm and 7~9mm that there are two types of length for tool.
8. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 7, which is characterized in that the suction wave layer
With a thickness of 3mm.
9. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 7, which is characterized in that the 3~5mm
Mass ratio with the silver-plated carbon fiber of 7~9mm length is 4:1；The carbon fiber is preferably dimensioned to be density 1.75g/cm3, 5 μ of diameter
M, wherein silver coating is with a thickness of 200nm.
10. the jamproof sensor protection lid of a kind of high temperature resistant according to claim 7, which is characterized in that the electromagnetism
The preparation process of screen unit:
S1 prepares ducting layer
S2 handles carbon fiber thermal, removes surface impurity；Then electroplating solution is configured, using silver plate as anode, after heat treatment
Carbon fiber as cathode, anode and cathode are immersed in electroplating solution, obtain silver-plated carbon fiber by plating；
Silver-plated carbon fiber is put into the silane coupling agent through diluting and impregnates 1min by S3, cuts silver-plated carbon fiber after dry
At 3~5mm and 7~9mm length；Then using open double rod refining glue machinings, use silicon rubber for matrix, silver-plated carbon fiber
For filler, isopropanol is antifreezing agent, and wave layer is inhaled in preparation；
S4 will inhale on the inside of wave layer insertion ducting layer, obtain the electromagnetic shielding unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811214840.2A CN109211294A (en) | 2018-10-18 | 2018-10-18 | The jamproof sensor protection lid of high temperature resistant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811214840.2A CN109211294A (en) | 2018-10-18 | 2018-10-18 | The jamproof sensor protection lid of high temperature resistant |
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| CN109211294A true CN109211294A (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168314A (en) * | 2018-10-22 | 2019-01-08 | 泉州兴哲商贸有限公司 | A kind of electromagnetic shielding unit |
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| CN204392771U (en) * | 2015-03-12 | 2015-06-10 | 陕西理工学院 | A kind of for communication terminal casing electromagnetic armouring structure |
| CN206223197U (en) * | 2016-12-05 | 2017-06-06 | 深圳市新宇轩模具有限公司 | A kind of miniature transducer protection cap |
| CN107356279A (en) * | 2017-07-28 | 2017-11-17 | 梧州井儿铺贸易有限公司 | The jamproof sensor protection lid of high temperature resistant |
| CN207560650U (en) * | 2017-12-14 | 2018-06-29 | 东莞市亚马电子有限公司 | A kind of EMI electromagnetic shielding films |
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2018
- 2018-10-18 CN CN201811214840.2A patent/CN109211294A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204392771U (en) * | 2015-03-12 | 2015-06-10 | 陕西理工学院 | A kind of for communication terminal casing electromagnetic armouring structure |
| CN206223197U (en) * | 2016-12-05 | 2017-06-06 | 深圳市新宇轩模具有限公司 | A kind of miniature transducer protection cap |
| CN107356279A (en) * | 2017-07-28 | 2017-11-17 | 梧州井儿铺贸易有限公司 | The jamproof sensor protection lid of high temperature resistant |
| CN207560650U (en) * | 2017-12-14 | 2018-06-29 | 东莞市亚马电子有限公司 | A kind of EMI electromagnetic shielding films |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168314A (en) * | 2018-10-22 | 2019-01-08 | 泉州兴哲商贸有限公司 | A kind of electromagnetic shielding unit |
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