CN110428975A - A kind of overload-resistant impact sensing capacitor based on elastomer - Google Patents
A kind of overload-resistant impact sensing capacitor based on elastomer Download PDFInfo
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- CN110428975A CN110428975A CN201910599758.4A CN201910599758A CN110428975A CN 110428975 A CN110428975 A CN 110428975A CN 201910599758 A CN201910599758 A CN 201910599758A CN 110428975 A CN110428975 A CN 110428975A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 42
- 239000000806 elastomer Substances 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 94
- 229910052751 metal Inorganic materials 0.000 claims abstract description 94
- 238000004146 energy storage Methods 0.000 claims abstract description 39
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/12—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance
- G01P15/123—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance by piezo-resistive elements, e.g. semiconductor strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/13—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by measuring the force required to restore a proofmass subjected to inertial forces to a null position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/08—Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/66—Current collectors
- H01G11/68—Current collectors characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/66—Current collectors
- H01G11/70—Current collectors characterised by their structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a kind of overload-resistant impact sensing capacitor based on elastomer, including capacitor core and shell, in the shell by high-intensity resin encapsulating, the material of shell is hard metal material to capacitor core；Capacitor core includes: that the first inactive metal collector, the first elastic support, vacuum liquid-absorbing module, the second elastic support and the second inactive metal collector pass sequentially through stacked in layers and connect to obtain laminated structure；Elastic support includes elastomer and energy-storage module, and energy-storage module is filled in inside elastomer, and energy-storage module includes that the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic piezoresistive electrodes pass sequentially through stacked in layers and obtain laminated structure；Vacuum liquid-absorbing module includes that the inactive metal collector of third, the 4th inactive metal collector pass sequentially through stacked in layers with the 5th inactive metal collector and connect to obtain laminated structure.
Description
Technical field
The present invention relates to new material and field of new energy technologies more particularly to a kind of overload-resistant impacts based on elastomer
Sensing capacitor.
Background technique
The double electric layers supercapacitor of one of current most popular supercapacitor: when to electrode charge, positive negative electricity
Pole surface charge will attract the counter ions in surrounding electrolyte solution, keep these ionic adsorptions double electric in being formed on electrode surface
Lotus layer, constitutes electric double layer super capacitor, to realize energy storage；
Above-mentioned capacitor only there is energy-storage function to need to be provided simultaneously with energy storage and sensing without having sensing function
In the case where function, generallys use traditional sensors part and energize the shared mode of device, this method will lead to system bulk
It is larger, it is unfavorable for whole miniaturization, and be easy to occur because each section impact resistance is poor under high overload impact condition
Energy storage failure.
Therefore, need at present it is a kind of with energy storage and power capability can sensing capacitor, realize energy storage and sensing function
In the case where improve response sensitivity, and improve impact resistance.
Summary of the invention
The present invention provides a kind of overload-resistant impact sensing capacitor based on elastomer, to solve existing capacitor
Do not have sensing capability, and the technical issues of energy storage is failed occurs for high overload, so that storage can be achieved at the same time by constructing one kind
Can and sensing function without external sensor part can sensing capacitor, and using elastomer as compression supporter,
And use hard metal shell and high-intensity resin encapsulating, realize can sensing capacitor enhance in the case where being under pressure
Impact resistance.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of, and the overload-resistant impact based on elastomer passes
Inductance capacitor, including capacitor core and shell, the capacitor core pass through high-intensity resin encapsulating in the housing, described outer
The material of shell is hard metal material；
The capacitor core includes: the first inactive metal collector, the first elastic support, vacuum liquid-absorbing module,
Two elastic supports and the second inactive metal collector；The first inactive metal collector, first resilient support
Body, the vacuum liquid-absorbing module, second elastic support and the second inactive metal collector pass sequentially through stratiform
It stacks connection and obtains laminated structure；The elastic support includes elastomer and energy-storage module, the energy-storage module filling
Inside the elastomer, the energy-storage module includes the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic pressure drag electricity
Pole, the described first elastic piezoresistive electrodes, the PTFE diaphragm and the second elastic piezoresistive electrodes pass sequentially through stacked in layers and obtain
To laminated structure；The vacuum liquid-absorbing module include the inactive metal collector of third, the 4th inactive metal collector and
5th inactive metal collector, the inactive metal collector of the third, the 4th inactive metal collector and described
5th inactive metal collector passes sequentially through stacked in layers and connects to obtain laminated structure.
Preferably, between the described first inactive metal collector and first elastic support, described
Between one elastic support and the vacuum liquid-absorbing module, between the vacuum liquid-absorbing module and second elastic support,
And between second elastic support and the second inactive metal collector, bonding formation is carried out by adhesive
Point glue-line.
Preferably, between the inactive metal collector of the third and the 4th inactive metal collector,
Between the 4th inactive metal collector and the 5th inactive metal collector, bonding shape is carried out by adhesive
At a glue-line.
Preferably, between the inactive metal collector of the third and the 4th inactive metal collector
The second dispensing between first glue-line and the 4th inactive metal collector and the 5th inactive metal collector
Layer, all has notch.
Preferably, the notch on first glue-line and the direction of the gap position on the second point glue-line one
It causes.
Preferably, the inactive metal collector of the third and the 5th inactive metal collector are ring
Shape structure；The 4th inactive metal collector is laminated structure.
Preferably, the elastomer is ring structure.
Preferably, the shape of the supercapacitor includes round, rectangular, triangle or various obform bodies.
Preferably, the elastic support and the vacuum liquid-absorbing module by the increase of internal series-connection quantity and
It reduces, the operating voltage and capacitance of control device, sensing scope and sensitivity can also be changed by changing internal series-connection quantity, be fitted
For more application scenarios.
Compared with the prior art, the embodiment of the present invention has the following beneficial effects:
By constructing a kind of energy storage and sensing function passing without external sensor part can be achieved at the same time in the present invention
Inductance capacitor, and using elastomer as compression supporter, and hard metal shell and high-intensity resin encapsulating are used, solution
Certainly existing capacitor does not have sensing capability, and the skill that energy storage is failed is occurred by pressure decline and high overload for response sensitivity
Art problem, thus realize can sensing capacitor kept in the case where being under pressure energy storage response sensitivity and enhancing shock resistance
Ability.
Detailed description of the invention
Fig. 1: for the overload-resistant impact sensing capacitor overall structure diagram in the embodiment of the present invention；
Fig. 2: for the structural schematic diagram of the vacuum liquid-absorbing module in the embodiment of the present invention；
Fig. 3: for the schematic illustration of the realization sensing effect in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, the preferred embodiment of the present invention provides a kind of overload-resistant impact sensing capacitance based on elastomer
Device, including capacitor core and shell, the capacitor core pass through high-intensity resin encapsulating in the housing, the material of the shell
Matter is hard metal material；
The capacitor core includes: the first inactive metal collector, the first elastic support, vacuum liquid-absorbing module,
Two elastic supports and the second inactive metal collector；The first inactive metal collector, first resilient support
Body, the vacuum liquid-absorbing module, second elastic support and the second inactive metal collector pass sequentially through stratiform
It stacks connection and obtains laminated structure；The elastic support includes elastomer and energy-storage module, the energy-storage module filling
Inside the elastomer, the energy-storage module includes the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic pressure drag electricity
Pole, the described first elastic piezoresistive electrodes, the PTFE diaphragm and the second elastic piezoresistive electrodes pass sequentially through stacked in layers and obtain
To laminated structure；The vacuum liquid-absorbing module include the inactive metal collector of third, the 4th inactive metal collector and
5th inactive metal collector, the inactive metal collector of the third, the 4th inactive metal collector and described
5th inactive metal collector passes sequentially through stacked in layers and connects to obtain laminated structure.
In the present embodiment, between the described first inactive metal collector and first elastic support, described
Between one elastic support and the vacuum liquid-absorbing module, between the vacuum liquid-absorbing module and second elastic support,
And between second elastic support and the second inactive metal collector, bonding formation is carried out by adhesive
Point glue-line.
Device using laminated structure design, by inactive metal collector, elastic support and vacuum liquid-absorbing module into
Row stacked in layers, interlayer are bonded using adhesive, the specific structure such as following figure, and top layer is that surface is sintered inactive metal afflux
Body, as a pole of device, next layer is annular elastomer, is piezoresistive electrodes and PTFE diaphragm inside ring-shaped rubber, then under
Layer is vacuum liquid-absorbing module, then lower layer is annular elastomer, and lowest level is inactive metal collector as the another of device
Pole is all made of adhesive bonding between each layer.
In the present embodiment, the elastomer is ring structure.
It fixes and seals by annular resilient supporter outside energy-storage module, inside uses laminated construction, is always divided into
Three layers, upper layer is elastic piezoresistive electrodes, and middle layer is PTFE diaphragm, and lower layer is also elastic piezoresistive electrodes, by energy-storage module with this
Structure filling is having inside elastic support made from elastomer, provides the energy storage capacity and pressure of double electric layers supercapacitor
The sensing capability of electric-type sensor and piezoresistive transducer.
In the present embodiment, between the inactive metal collector of the third and the 4th inactive metal collector,
Between the 4th inactive metal collector and the 5th inactive metal collector, bonding shape is carried out by adhesive
At a glue-line.
In the present embodiment, between the inactive metal collector of the third and the 4th inactive metal collector
The second dispensing between first glue-line and the 4th inactive metal collector and the 5th inactive metal collector
Layer, all has notch.
In the present embodiment, the notch on first glue-line and the direction of the gap position on the second point glue-line one
It causes.
In the present embodiment, the inactive metal collector of the third and the 5th inactive metal collector are ring
Shape structure；The 4th inactive metal collector is laminated structure.
Referring to figure 2., vacuum liquid-absorbing inside modules structure: top layer is sintered inactive metal afflux using annular surface
Body, middle layer use sheet collector, and upper layer and middle layer are bonded using hot melt adhesive dispensing mode, and when dispensing designs one
For section notch as vacuum liquid-absorbing mouth, lowest level also uses annular surface to be sintered inactive metal collector, and interlayer is also scarce using having
The point glue-line of mouth is bonded, and notch direction is consistent with upper layer dispensing break mouth direction.
In the present embodiment, the shape of the supercapacitor includes round, rectangular, triangle or various obform bodies.Device
Part can be made by using titanium alloy collector of different shapes, elastomer elastic support, round, rectangular, triangle
Equal various shapes realize the shape customization of device.
In the present embodiment, the elastic support and the vacuum liquid-absorbing module by the increase of internal series-connection quantity and
It reduces, the operating voltage and capacitance of control device, sensing scope and sensitivity can also be changed by changing internal series-connection quantity, be fitted
For more application scenarios.
To adapt to different application scenarios, need to produce the device that can be used under the conditions of different voltages, the present invention
Can by way of controlling internal series-connection module number control device operating voltage and capacitance, and increase can be passed through
Or reduce control of the concatenated module realization to sensing measurement range
As described in Figure 3, using device when being impacted, the voltage jump of generation reaches sensing effect.In discharge process
In, device is impacted, after device is impacted, whole deformation occurs, causes piezoelectricity, pressure drag, capacitor, electric chemical formula sensing principle
Response forms voltage jump, reaches sensing effect.
Supercapacitor of the present invention realize energy storage device from sensing function, by using pressure drag in supercapacitor
Formula active carbon elasticity piezoresistive electrodes and PTFE diaphragm realize pressure drag function, and shape when being impacted using elastic support
Variation and the internal flow of electrolyte realize condenser type and electric chemical formula sensing function；
Supercapacitor of the present invention also achieves the self-powered function of senser element, by inside using activated carbon electrodes
Laminated structure realizes the energy storage of double electric layers supercapacitor, by using the inactive metal system in surface and internal string certainly
The laminated construction of connection realizes the energy storage of electric double layer capacitance supercapacitor.
Supercapacitor of the present invention also achieves the continuous sensitive response to the impact of high frequency high overload；It realizes and passes through pole piece
The different selections of diaphragm, using different energy storage or sensing principle；The shape for realizing device special-shaped can customize, using not similar shape
Device can be made into different shape by the inactive metal collector and rubber washer of shape, be applicable in different application scenarios and environment；
Freely adjusting for the voltage of device is realized, the requirement under multiple power sources environment is met, by being gone here and there certainly inside control device
The flexible modulation for using device voltage and capacitance may be implemented in the amount of monomer of connection；Realize oneself of sensing measurement range
By adjusting, meeting plurality of application scenes, being surveyed by, from concatenated amount of monomer, may be implemented to sense device inside control device
Measure the flexible modulation of range；Using modularization assembling technology and continuous productive process, the small lot production of device is realized, batch is made
Make resilient support body portion, vacuum liquid-absorbing module, energy-storage module, then is successively assembled the producing efficiency, it can be achieved that high, and
And it can guarantee preferable stability and consistency.
Traditional sensors usually require external power supply, to maintain the energy supply of sensor and to the record of heat transfer agent and anti-
Feedback, and sensor can not preferably cope with the impact signal of high frequency, may result in signal can not accurately record, " energy storage-biography
The integrated supercapacitor of sense " combines the advantage of a variety of sensor mechanisms, and precision is high, and induction range is wide, and the response time is extremely short, institute
There is accurate, sensitive counting response ability under the conditions of high-frequency percussion with device.
Common supercapacitor or sensor are easy to send out because each section impact resistance is poor under high overload impact condition
Raw failure, " energy storage-sensing " integration supercapacitor using high duty metal as support, using hard metal shell and
Situations such as high-intensity resin dosing technology, leakage caused by having prevented because of impact, deformation, impacts during also achieving in high overload
Under the conditions of normal, stable operation.
Flexible package technology: the flexible package method being sealed using annular elastomer circle is made using ring-shaped rubber
For sealing ring, body rubber will be supported to bond and seal with collector metal using binder, so that device is in impact condition lower edge
There is certain compressible ability, after removing external force, rubber rebound, device can restore to the original state, and realize device on thickness direction
The capacitive sensing function of part；
Vacuum liquid-absorbing technology: using perforated metal pole piece and metal pole piece, vacuum liquid-absorbing mould is made in lamination in the way of dispensing
Block, design dispensing notch realize monomer cavity intercommunication as vacuum liquid-absorbing mouth, and pole piece is fixed shares collector etc. between mould group
Multiple functions；
Overload-resistant impact encapsulation technology: metal shell, in the shell with high-intensity resin encapsulating by device, Ke Yi great are used
The impact resistance of width promotion device entirety；
Modularization assembling technology: device is divided into energy-storage module using the different function and usage in device part, vacuum is inhaled
Liquid module and sensing module assemble by each functional module of batch making, then by each functional module, realize device
Small lot is hand-made.
Metal pole piece in the present invention uses inactive species metal pole piece, and inactive species metal pole piece is inactive, no
React, using inactive species metal pole piece, application be double electric layers supercapacitor energy storage principle；In the present invention
Elastic electrode uses piezoresistive electrodes, is sensed using piezoresistive electrodes by being pressurized using the sensing principle that pressure drag senses.
The present invention produces a kind of novel micro- energy device, firstly, the device is integrated with the energy-storage function of supercapacitor
With the sensing function of piezoresistive transducer, capacitance type sensor and electrochemical transducer[sensor, the energy storage of supercapacitor is combined
The sensing principle of principle and sensor, by using active carbon/H2SO4Double electric layers supercapacitor system, to meet device
The application demand of energy storage and power supply；The elastic piezoresistive electrodes produced using rubber and activated carbon electrodes are as piezoresistive transducer
Funtion part, when being impacted, piezoresistive electrodes can generate deformation, and the resistance value that deformation will lead to piezoresistive electrodes changes,
Voltage fluctuation is generated in charge and discharge process, realizes pressure drag sensing function, while the activated carbon electrodes also can be used as electric double layer and surpass
The pole piece of grade capacitor carries out energy storage, and activated carbon electrodes can adsorb the zwitterion in electrolyte, be formed in the two sides of diaphragm
Potential difference, to realize energy storage；Device uses H2SO4As electrolyte, electrolyte can be moved when being impacted along impact direction
Dynamic, to form certain concentration difference in device inside, the concentration difference variation of device inside partial electrolysis liquid be will lead in device
The distribution of charges of portion's each section is uneven, forms potential difference in device inside, leads to voltage change, to realize the electrification of device
Learn sensing function；Using titanium alloy as the collector of device, inactive metal collector interlayer is using rubber as resilient support
Body, when being impacted, resilient support, which is known from experience, to be compressed, and is reduced the spacing between two collectors, is caused the capacitance of capacitor
Variation, causes device voltage to change, realizes the capacitive sensing of device.
The invention enables the dual functions that single device realizes energy storage and sensing, reduce sensing system to a certain extent
The volume of system；Second, the present invention using inside the laminated type based on titanium alloy and elastomer from concatenated design method, this
Kind structure farthest reduces the redundant space of device inside, and not extra gap structure avoids in impact process
The mechanical failures such as solder joint failure, structural break caused by local stress is excessive, and also avoid high impact loads lower outer portion and lead
Line and the possibility of circuit element failure；Third, laminated type expandable structure make device can with flexibly adjustment sensing scope and
Voltage has expanded the use scope and application scenarios of device；4th, using metal shell, and high-intensity resin encapsulating is used, resisted
Impact capacity is extremely strong, and the reliability of device greatly improved.
The present invention develops a novel micro- energy device, changes traditional sensors and needs by external energy supply and overload-resistant
The disadvantage of impact capacity difference realizes device itself energy storage and energy supply, and improve traditional sensors not rushing in high frequency high overload
Sensitive response and accurate metering problem under the conditions of hitting realize sensitive response under the conditions of the impact of high frequency high overload and accurate
It counts.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of overload-resistant impact sensing capacitor based on elastomer, which is characterized in that including capacitor core and shell, institute
It states capacitor core and passes through high-intensity resin encapsulating in the housing, the material of the shell is hard metal material；
The capacitor core includes: the first inactive metal collector, the first elastic support, vacuum liquid-absorbing module, the second bullet
Property supporter and the second inactive metal collector；The first inactive metal collector, first elastic support, institute
It states vacuum liquid-absorbing module, second elastic support and the second inactive metal collector and passes sequentially through stacked in layers company
It connects to obtain laminated structure；The elastic support includes elastomer and energy-storage module, and the energy-storage module is filled in described
Inside elastomer, the energy-storage module includes the first elastic piezoresistive electrodes, PTFE diaphragm and the second elastic piezoresistive electrodes, described
First elastic piezoresistive electrodes, the PTFE diaphragm and the second elastic piezoresistive electrodes pass sequentially through stacked in layers and obtain laminated type
Structure；The vacuum liquid-absorbing module includes the inactive metal collector of third, the 4th inactive metal collector and the 5th without work
Property metal collector, the inactive metal collector of the third, the 4th inactive metal collector and the described 5th are without work
Property metal collector passes sequentially through stacked in layers and connects to obtain laminated structure.
2. the overload-resistant impact sensing capacitor based on elastomer as described in claim 1, which is characterized in that described first
Between inactive metal collector and first elastic support, first elastic support and the vacuum liquid-absorbing module
Between, between the vacuum liquid-absorbing module and second elastic support and second elastic support and described the
Between two inactive metal collectors, bonding is carried out by adhesive and forms point glue-line.
3. the overload-resistant impact sensing capacitor based on elastomer as described in claim 1, which is characterized in that the third
Between inactive metal collector and the 4th inactive metal collector, the 4th inactive metal collector with it is described
Between 5th inactive metal collector, bonding is carried out by adhesive and forms point glue-line.
4. the overload-resistant impact sensing capacitor based on elastomer as claimed in claim 3, which is characterized in that the third
First glue-line and the 4th inactive gold between inactive metal collector and the 4th inactive metal collector
Belong to the second point glue-line between collector and the 5th inactive metal collector, all has notch.
5. the overload-resistant impact sensing capacitor based on elastomer as claimed in claim 4, which is characterized in that described first
The gap position on notch and the second point glue-line on point glue-line is towards unanimously.
6. the overload-resistant impact sensing capacitor based on elastomer as described in claim 1, which is characterized in that the third
Inactive metal collector and the 5th inactive metal collector are ring structure；The 4th inactive metal afflux
Body is laminated structure.
7. the overload-resistant impact sensing capacitor based on elastomer as described in claim 1, which is characterized in that described high-elastic
Rubber is ring structure.
8. the overload-resistant impact sensing capacitor based on elastomer as described in claim 1, which is characterized in that described super
The shape of capacitor includes round, rectangular, triangle or various obform bodies.
9. the overload-resistant impact sensing capacitor based on elastomer as described in claim 1, which is characterized in that the elasticity
Supporter and the vacuum liquid-absorbing module increasing and decreasing by internal series-connection quantity, the operating voltage and capacitor of control device
Amount, sensing scope and sensitivity can also be changed by changing internal series-connection quantity, be suitable for more application scenarios.
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| CN201910599758.4A CN110428975A (en) | 2019-07-04 | 2019-07-04 | A kind of overload-resistant impact sensing capacitor based on elastomer |
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| CN201910599758.4A CN110428975A (en) | 2019-07-04 | 2019-07-04 | A kind of overload-resistant impact sensing capacitor based on elastomer |
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| CN1963966A (en) * | 2006-11-29 | 2007-05-16 | 大连理工大学 | A mixed super capacitor |
| CN106872727A (en) * | 2017-01-18 | 2017-06-20 | 清华大学 | A kind of self-powered acceleration transducer and its manufacture method based on piezoresistive effect |
| CN109346336A (en) * | 2018-11-13 | 2019-02-15 | 清华大学 | A kind of flexible package method of laminated construction supercapacitor |
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