CN107611512A - Cell apparatus and its external force detection method - Google Patents
Cell apparatus and its external force detection method Download PDFInfo
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- CN107611512A CN107611512A CN201610542163.1A CN201610542163A CN107611512A CN 107611512 A CN107611512 A CN 107611512A CN 201610542163 A CN201610542163 A CN 201610542163A CN 107611512 A CN107611512 A CN 107611512A
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- pressure
- external force
- cell apparatus
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- 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
- Y02E60/10—Energy storage using batteries
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Abstract
The present invention provides a kind of cell apparatus and its external force detection method, and cell apparatus includes a battery and a housing.Housing is coating or cover battery.Cell apparatus also includes a pressure-sensing portion, is arranged between a battery and a housing.Wherein, when housing is collided by an external force, pressure-sensing portion receives external force, and external force is more than a pressure threshold, and the pressure-sensing portion in a first state translates into one second state that can be recorded, and the second state is different from first state.By pressure-sensing portion to sense the external force size suffered by cell apparatus.Wherein, when external force is more than pressure threshold, cell apparatus can protect cell apparatus and record course whereby by pressure-sensing portion to be parsed out causing product the factor such as to be collided, extrude or impact.Consequently, it is possible to which the present invention lifts the security of cell apparatus really, and record cell apparatus is collided by external force, hits or dropped from eminence and produce failure, damage or bad situation.
Description
Technical field
The present invention relates to a kind of cell apparatus and its external force detection method, and more particularly to a kind of detecting electricity
Cell apparatus and its external force detection method of the pond by external force situation.
Background technology
With such as portable electronic such as notebook computer, mobile phone, video cameras, digital camera
The use demand of equipment increasingly increases, and has high-energy-density and can be as the electricity of portable electric appts
Also when the river rises the boat goes up for the demand of the secondary cell in source.In addition, the secondary cell needed for electric car also increasingly carries
It is high.Wherein, the cell apparatus such as secondary cell is, for example, lithium ion battery.
However, in the verification process of conventional cell apparatus, cell apparatus suffers from abnormal
External force collision, extruding when, rear end maintenance personal can only according to the apparent vestige of cell apparatus,
To judge cell apparatus whether by abnormal external force；Or rear end maintenance personal often needs to fill on battery
Put etc. after product disassembled, and according to the invalidation functions of cell apparatus, to carry out privileged site, zero
Part or circuit etc. check.Especially, exception occurs instantly in cell apparatus, that is, is possible to cause
The threat of the life of user of service or maintenance personal, cause whereby using upper inconvenience and harm
Life security.
The content of the invention
The invention reside in providing a kind of cell apparatus and its external force detection method, by pressure-sensing portion with
Detect cell apparatus to be collided, extrude or drop by the external force of exception, protect battery whereby to realize
Device and the purpose for analyzing cell apparatus course.
The present invention proposes a kind of cell apparatus, including a battery and a housing.Housing coating or
Cover battery.Cell apparatus also includes a pressure-sensing portion, is arranged between battery and housing.
Wherein, when housing is collided by an external force, pressure-sensing portion receives external force, and external force is more than one
Pressure threshold, the pressure-sensing portion in a first state translate into one second state that can be recorded,
Second state is different from first state.
According to a preferred embodiment of the cell apparatus of the present invention, pressure-sensing portion is a feeling of stress
Film is surveyed, and there is a pressure-sensing resistance, pressure-sensing film is electrically connected to a battery management list
Member, battery management unit include a divider resistance, a voltage source, a processing unit, a switch element
And a protection location, pressure-sensing film concatenation voltage source and divider resistance, processing unit are electrically connected with
Switch element, protection location, pressure-sensing film and divider resistance.
According to a preferred embodiment of the cell apparatus of the present invention, voltage source, pressure-sensing film
Be formed as a bleeder circuit with divider resistance, bleeder circuit to provide a voltage division signal to processing unit,
Processing unit is according to voltage division signal to judge whether external force is more than pressure threshold.
According to a preferred embodiment of the cell apparatus of the present invention, protection location is electrically connected with battery
Core and a first end, switch element is electrically connected with battery and one second end, and judges in processing unit
When going out external force and being more than pressure threshold, processing unit controlling switch unit is in cut-off state, or control
Protection location is in guard mode.
According to a preferred embodiment of the cell apparatus of the present invention, battery management unit also includes one
Recording unit and a timing unit, are electrically connected processing unit, and timing unit is providing for the moment
Between parameter to processing unit, when processing unit ends switch element, recording unit records first state
Or second state time of origin or force-bearing situation.
According to a preferred embodiment of the cell apparatus of the present invention, pressure-sensing portion includes one first
Basalis, a colorforming layer, color colouring layer and one second basalis, colorforming layer connection
Chromatograph on first basalis and color, chromatograph connection colorforming layer and the second basalis on color, the
One basalis is adjacent with housing, and the second basalis is adjacent with battery.
According to a preferred embodiment of the cell apparatus of the present invention, colorforming layer includes multiple colors
Ball, multiple chromospheres are attached at the first basalis, and housing is acted in external force, cause to be attached at the first base
Multiple chromosphere some of them of bottom are damaged by external force extruding, cause to be wrapped in some of chromospheres
The dyestuff covered flow to chromatograph on color, and chromatograph is paper wood or cloth material on color.
According to a preferred embodiment of the cell apparatus of the present invention, pressure-sensing portion includes a color
Forming layer, a color colouring layer and basalis, chromatograph connection colorforming layer and basalis on color,
Colorforming layer is adjacent with housing, and basalis is adjacent with battery.
According to a preferred embodiment of the cell apparatus of the present invention, colorforming layer includes multiple colors
Ball, multiple chromospheres are attached at chromatograph on color, and housing is acted in external force, cause to be attached on color
Multiple chromosphere some of them of chromatograph are damaged by external force extruding, cause to be wrapped in some of chromospheres
The dyestuff covered flow to chromatograph on color, and chromatograph is paper wood or cloth material on color.
According to a preferred embodiment of the cell apparatus of the present invention, first state is one first chemistry
Existing, the second state is one second chemical phenomenon, and the first chemical phenomenon is that finger pressure detecting part is a mistake
Saturated solution film, the second chemical phenomenon connect for the supersaturated solution film referred to partially or fully with crystal seed
Touch, becoming solidification by liquefaction condenses the phenomenon being fully crystallized.
According to a preferred embodiment of the cell apparatus of the present invention, pressure-sensing portion has one first
Face and second face relative with the first face, the first face include one first basalis, a colorforming layer,
One color colouring layer and one second basalis, colorforming layer connect chromatograph on the first basalis and color,
Chromatograph connection colorforming layer and the second basalis on color, the first basalis is adjacent with housing, and second
Basalis is adjacent with battery, and the second face is a pressure-sensing film, and with pressure-sensing electricity
Resistance, pressure-sensing film are electrically connected to a battery management unit.
According to a preferred embodiment of the cell apparatus of the present invention, pressure-sensing portion has one first
In the second relative face of the first face, the first face includes a colorforming layer, color colouring layer in face and one
And a basalis, chromatograph connection colorforming layer and basalis, colorforming layer and housing phase on color
Neighbour, basalis is adjacent with battery, and the second face is a pressure-sensing film, and has a feeling of stress
Measuring resistance, pressure-sensing film are electrically connected to a battery management unit.
The present invention proposes a kind of external force detection method of cell apparatus, suitable for a cell apparatus, battery
Device includes a battery and a housing, and housing is coating or cover battery, external force detection method
Including：One pressure-sensing portion is set between battery and housing；When housing is collided by an external force,
Pressure-sensing portion receives external force, and external force is more than a pressure threshold, the pressure in a first state
Detecting part translates into one second state that can be recorded, and the second state is different from first state.
According to a preferred embodiment of the external force detection method of the cell apparatus of the present invention, the first shape
State is one first chemical phenomenon, and the second state is one second chemical phenomenon, and the first chemical phenomenon is finger
Pressure-sensing portion is a supersaturated solution film, and satiety of second chemical phenomenon for finger partially or fully
Contacted with solution film with crystal seed, becoming solidification by liquefaction condenses the phenomenon being fully crystallized.
According to a preferred embodiment of the external force detection method of the cell apparatus of the present invention, the first shape
State is one first physical phenomenon, and the second state is one second physical phenomenon, and the first physical phenomenon is finger
Pressure-sensing portion has one first color, and the second physical phenomenon is feeling of stress of the finger with the first color
Survey portion also includes one second color.
According to a preferred embodiment of the external force detection method of the cell apparatus of the present invention, the first shape
State is that finger pressure detecting part exports the voltage division signal less than pressure threshold to a battery management unit, and
Second state is that finger pressure detecting part exports the voltage division signal more than pressure threshold to battery management unit.
The cell apparatus of the present invention is big to sense external force suffered by cell apparatus by pressure-sensing portion
It is small.Wherein, when external force is more than pressure threshold, cell apparatus can be analyzed by pressure-sensing portion
Go out to cause product to be collided, extrude or the factor such as impact, protect cell apparatus and record course whereby.
Consequently, it is possible to the present invention lifts the security of cell apparatus, and record cell apparatus by outer really
Power collision, hit or dropped from eminence and produce failure, damage or bad situation.
General introduction above and ensuing embodiment, all it is to further illustrate the technology of the present invention
Means and function, the embodiment so described and accompanying drawing only provide reference explanation use, are not used for pair
The present invention person of being any limitation as.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the cell apparatus of one embodiment of the invention.
Fig. 2 is the diagrammatic cross-section in the pressure-sensing portion of another embodiment of the present invention.
Fig. 2A is the diagrammatic cross-section in the pressure-sensing portion of another embodiment of the present invention.
Fig. 3 is the schematic perspective view of the cell apparatus of another embodiment of the present invention.
Fig. 3 A are the diagrammatic cross-section of the cell apparatus of another embodiment of the present invention.
Fig. 4 is the work(of the battery of another embodiment of the present invention, pressure-sensing portion and battery management unit
Can block schematic diagram.
Fig. 5 is the ripple of the external force-pressure-sensing resistance in a variety of pressure-sensing portions of another embodiment of the present invention
Shape schematic diagram.
Fig. 6 is the external force-partial pressure of the pressure-sensing portion to a variety of divider resistances of another embodiment of the present invention
Waveform diagram.
Fig. 7 is the pressure-sensing portion and the schematic diagram of battery management unit of another embodiment of the present invention.
Fig. 8 is the flow chart of the external force detection method of the cell apparatus of another embodiment of the present invention.
Embodiment
Fig. 1 is the schematic perspective view of the cell apparatus of one embodiment of the invention.Refer to Fig. 1.A kind of electricity
Pool device 1, including a battery 10, a pressure-sensing portion 12 and a housing 14.Wherein, feeling of stress
Survey portion 12 is between battery 10 and housing 14.Pressure-sensing portion 12 is coating or cover electricity
Pond core 10.Housing 14 is coating or overburden pressure detecting part 12.In practice, battery 10
Such as it is lithium battery, Polymide (pi) battery, rechargeable battery or other batteries.Battery 10
For a powered tank body, in order to avoid powered tank body contacts with other conductive bodies and causes battery 10
Short circuit, it will usually in the powered dielectric film of tank body outer cladding one or the housing 14 of insulating barrier.
The pressure-sensing portion 12 of the present invention is arranged between battery 10 and housing 14, in cell apparatus
1 is collided by external force and causes housing 14 to deform or damage, and causes pressure-sensing portion 12 to sense external force big
In a pressure threshold, pressure-sensing portion 12 will be converted to one second state from a first state.Namely
Say, whether user can be collided picking out cell apparatus 1 by pressure-sensing portion 12 by external force,
Impact is damaged.
For convenience of explanation, the cell apparatus 1 of the present embodiment is illustrated with No. 3 batteries or AA batteries.
In other embodiments, cell apparatus 1 also can be other number battery, portable power source, PDA, intelligence
Type mobile phone, guidance machine or other devices.Pressure-sensing portion 12 is, for example, pressure-sensing film, pressure
Sensing film or pressure-sensing layer.And housing 14 is for example, transparent, can have an X-rayed or the housing of other materials.
Therefore, collided in cell apparatus 1 by external force, and cause pressure-sensing portion 12 to sense external force and be more than
One pressure threshold, pressure-sensing portion 12 will be converted to one second state from a first state.
In addition, pressure-sensing portion 12 is for example by physical structure, chemically structure, pressure resistance type strain
Sensor or circuit are come the pressure-sensing film realized.Wherein, in pressure-sensing portion 12 by external force,
And external force is when being more than pressure threshold, such as pressure-sensing portion 12 has physical structure, then first state
For the first physical phenomenon, the second state is the second physical phenomenon.Therefore, user can distinguish first
Difference between physical phenomenon and the second physical phenomenon.For example, first state is that all batteries surface is equal
White is presented.And blush is presented for the battery surface of force area in the second state, remaining surface region is still
For white.
In another example pressure-sensing portion 12 has chemically, structure, first state are one first chemical phenomenon,
Second state is one second chemical phenomenon.Therefore, user can distinguish the first chemical phenomenon and the second change
Learn the difference between phenomenon.For example, first state, which is all batteries surface, is rendered as liquid, and the
It is still liquid that crystallization or solid-state, remaining region, which is presented, for the battery surface of force area in two-state.Namely
Say, the first chemical phenomenon is that finger pressure detecting part 12 is a supersaturated solution film.And the second chemistry is existing
As being contacted for the supersaturated solution film referred to partially or fully with crystal seed, condensed by liquefaction change solidification complete
The phenomenon of crystallization.
In another example pressure-sensing film of the pressure-sensing portion 12 with pressure resistance type strain transducer, first
State and the second state are respectively that pressure-sensing portion 12 produces one first voltage division signal and one second partial pressure letter
Number.Therefore, the battery management unit (not illustrating) in cell apparatus 1 can distinguish first and second partial pressure
Signal.For example, the second voltage division signal is more than the first voltage division signal, whereby cell apparatus 1 distinguish by
To external force collision and starting protection mechanism.The unlimited pressing pressure detecting part 12 of the present embodiment, first state and
The embodiment or function mode of second state etc..
Next, further illustrate detail structure and the running of pressure-sensing portion 12 or the grade of cell apparatus 1.
Fig. 2 is the diagrammatic cross-section in the pressure-sensing portion of another embodiment of the present invention.Refer to Fig. 1.Pressure
Power detecting part 12 includes one first basalis B1, a colorforming layer 120, color colouring layer 122
And one second basalis B2.In practice, colorforming layer 120 connects the first basalis B1 and color
Chromatograph 122 on coloured silk.Chromatograph 122 connects the basalis B2 of colorforming layer 120 and second on color.The
One and second basalis B1, B2 for example be respectively polyester substrate (polyester base).
For colorforming layer 120 for example including multiple chromospheres, these chromospheres are attached at the first basalis B1.
These chromospheres are, for example, red, blue, green, yellow or the chromosphere of other colors.When external force F makees
For the first basalis B1 intermediate region, then relative to intermediate region force area FA these colors
Ball is damaged by external force F extruding, causes the dyestuff outflow coated in chromosphere.
Chromatograph 122 is, for example, the material of blank sheet of paper, calico, the material that can inhale dyestuff or other colors on color
Material.When the dyestuff outflow of the chromosphere of breakage, dyestuff will flow into chromatograph 122 on color.Therefore, color
Upper chromatograph 122 will be polluted by the dyestuff of the chromosphere of breakage.So user can be from cell apparatus 1
Surface, to pick out the position that cell apparatus 1 is collided by external force F.
Fig. 2A is the diagrammatic cross-section in the pressure-sensing portion of another embodiment of the present invention.Refer to Fig. 1.
Wherein Fig. 2A is similar to pressure-sensing portion 12a, 12 both structures in Fig. 2, and below will be to both
Included same components are represented with identical label.Pressure-sensing portion 12a, 12 both differences are：
Pressure-sensing portion 12a includes a colorforming layer 120, color colouring layer 122 and one basalis BL.
In practice, chromatograph 122 connects colorforming layer 120 and basalis BL on color.Wherein,
If an object Ob collides colorforming layer 120, for example, colorforming layer 120 intermediate region by
To external force F effect.Therefore, force area FA these chromospheres are damaged, and make to be wrapped in these chromospheres
The dyestuff outflow covered.Dyestuff will flow into chromatograph 122 on color, and chromatograph on color 122 is dyed
Operation.So user can clearly recognize the position that cell apparatus 1 is acted on by external force F.Wherein,
User can be according to use demand, to design these chromospheres by the damaged pressure threshold of external force.Remaining is equal
It is identical, it will not be described here.
Fig. 3 is the schematic perspective view of the cell apparatus of another embodiment of the present invention.Fig. 3 A are another for the present invention
The diagrammatic cross-section of the cell apparatus of one embodiment.Refer to Fig. 3 and Fig. 3 A.The battery of the present embodiment
Device 1a is illustrated with Mobile electric power.Cell apparatus 1a include one first housing S1 (or upper shell),
One second housing S2 (or lower house), a battery 10, a pressure-sensing portion 12b and a cell tube
Manage unit 16.Wherein, pressure-sensing portion 12b is passed with a piezoelectric film sensor, pressure resistance type strain
Sensor or a pressure-sensing film illustrate.Therefore, piezoelectric film sensor, pressure resistance type strain sensing
The external force size of device or pressure-sensing film according to suffered by housing 14, to export different voltage swings
Voltage division signal is to battery management unit 16.
In practice, the first housing S1 and the second housing S2 have the housing of accommodation space by forming one
14.Battery 10, pressure-sensing portion 12b and battery management unit 16 be arranged at the first housing S1 and
In the accommodation space that second housing S2 is formed.Therefore, when housing 14 is collided by external force, outside
Power will be transmitted to pressure-sensing portion 12b, and pressure-sensing portion 12b will produce a voltage division signal to cell tube
Manage unit 16.Wherein, pressure-sensing portion 12b also can record pressure-sensing position (and force area), also
That is the voltage division signal information such as including forced position.
Then, battery management unit 16 is managing the discharge and recharge operation of battery 10.Battery management
Unit 16 for example passes through printed circuit board (PCB) (PCB) or PCBA (Printed Circuit Board+Assembly)
To realize.Battery management unit 16 is according to voltage division signal to judge whether external force is more than pressure threshold.When
When external force is more than pressure threshold, battery management unit 16 connects the loop of battery 10 by cutting off, and causes
The battery 10 of cell apparatus 1 is set to stop power supply to external equipment；Or stop civil power or external equipment
Only supply electricity to the battery 10 of cell apparatus 1.The present embodiment does not limit the implementation of battery management unit 16
Mode.
Fig. 4 is the work(of the battery of another embodiment of the present invention, pressure-sensing portion and battery management unit
Can block schematic diagram.Refer to Fig. 4.Pressure-sensing portion 12b is, for example, pressure-sensing film, and is had
One pressure-sensing resistance R1.Pressure-sensing film is electrically connected with battery management unit 16.Wherein, pressure
Sensing resistance R1 values have different impedance values according to the size of external force.
In addition, battery management unit 16 includes a divider resistance R2, a voltage source PS, a processing list
First 160, one switch element 164 and a protection location 162.In practice, pressure-sensing resistance R1
Voltage source PS and divider resistance R2 is concatenated, to form a bleeder circuit.Processing unit 160 electrically connects
Meet switch element 164, protection location 162, pressure-sensing resistance R1 and divider resistance R2.
Wherein, switch element 164 includes an a discharge switch SW1 and charge switch SW2.Electric discharge is opened
It is for example brilliant by switching switch, field-effect transistor, bipolarity respectively to close SW1 and charge switch SW2
Body pipe or other semiconductor switching components are realized.In addition, protection location 162 be, for example, fuse,
Overcharge protection circuit or circuit overcurrent protection.The present embodiment does not limit switch element 164 and protection is single
The embodiment of member 162.
In addition, a first end FS is electrically connected with protection location 162.One second end SS is electrically connected with and opened
Close unit 164.Wherein, first end FS and the second end SS is respectively positive terminal and negative pole end.In reality
In business, first end FS and the second end SS are for example being coupled to the port of external equipment or civil power or electricity
Property interface.
For example, when cell apparatus 1 is collided by external force, pressure-sensing film is according to external force
Size and corresponding produce a pressure-sensing resistance R1.Pressure-sensing resistance R1 and divider resistance R2 whereby
A voltage division signal is produced by corresponding, and is transferred to processing unit 160.Wherein, sentence in processing unit 160
Break when external force and being more than pressure threshold, processing unit 160 can end discharge switch SW1 and charge switch
One of SW2 or combination, such as discharge switch SW1 or charge switch SW2 is in cut-off shape
State；Or processing unit 160 also can starting protection unit 162, such as blowout.Therefore, it is electric
Property connection battery 10 charging and discharging circuit will be in open loop (open circuit), protect battery whereby
Core 10 and external equipment.
It is noted that in other embodiments, battery management unit 16 also includes a recording unit
(not illustrating a) and timing unit (not illustrating), is electrically connected processing unit 160.Timing unit is used
To provide a time parameter to processing unit 160.When processing unit 160 ends switch element 164,
The time of origin or force-bearing situation of recording unit records first state or the second state.In practice, note
Record unit is for example realized by flash memory, storage internal memory or other internal memories.Timing unit is for example by fixed
When device or oscillator realize.The present embodiment does not limit recording unit and the embodiment of timing unit.
Fig. 5 is the ripple of the external force-pressure-sensing resistance in a variety of pressure-sensing portions of another embodiment of the present invention
Shape schematic diagram.Fig. 6 be another embodiment of the present invention pressure-sensing portion to the external force of a variety of divider resistances-
The waveform diagram of partial pressure.Refer to Fig. 5 and Fig. 6.Fig. 5 is external force-pressure of pressure-sensing film
Sense the waveform of resistance.Wherein, X axis is expressed as external force, and Y-axis is expressed as pressure-sensing resistance
Value.As seen from the figure, external force is bigger, then the pressure-sensing resistance value of pressure-sensing film is smaller.Conversely,
External force is smaller, then the pressure-sensing resistance value of pressure-sensing film is bigger.
It is worth noting that, pressure-sensing resistance R1 and battery such as the pressure-sensing portion 12 in Fig. 4
The divider resistance R2 of administrative unit 16 matching relationship will influence the curve ripple of such as Fig. 6 external force-partial pressure
Shape.For example, the curve waveform of external force-partial pressure more level off to flat horizontal line when, user must use
Precision higher processing unit or MCU, to recognize voltage division signal.Conversely, the curve ripple of external force-partial pressure
When the slope of shape is bigger, in general processing unit or MCU can be used in user, to recognize voltage division signal.
In simple terms, the curve waveform of external force-partial pressure will be had influence on such as the processing unit 160 or MCU in Fig. 4
Selection.
When user selectes pressure-sensing film, then the pressure-sensing resistance of pressure-sensing film is with outer
Power size and the characteristic that changes also just are fixed.Therefore, how to select and pressure-sensing resistance
The divider resistance matched somebody with somebody, " can accurately it be judged using in general processing unit or MCU outer with reaching
Power size " and above-mentioned record cell apparatus 1 collide or time or the protection grade work(of cell apparatus 1
Energy.
Then, Fig. 6 includes the curve of 5 external force-partial pressures.Wherein, X axis is expressed as external force,
Y-axis is expressed as partial pressure (i.e. voltage division signal DS in Fig. 4).Wherein, pressure-sensing portion 12 is fixation
The pressure-sensing film of kenel.And the curve such as a, b, c, d and e represent respectively 100K, 47K, 30K,
The divider resistance of 10K and 3K ohms.That is, the present embodiment with fixed partial pressure resistance at parameter,
Pressure-sensing resistance value is caused to produce the change of different curves according to external force size.
Such as divider resistance, when being 100K ohms, pressure-sensing resistance value is caused according to external force size
Curvilinear motion such as a curves.And for example, when divider resistance is 47K ohms, pressure-sensing resistance value according to
External force size and caused curvilinear motion such as c curves.Similarly understand, the curve such as b, c, d and e.When
So, each of this five curves can judge the foundation of external force size as processing unit.Wherein,
The present embodiment selects divider resistance in the following manner, to reach " using low cost, the processing of low level
The defencive function of unit, and reach and be same as high cost, a high position and high-precision processing unit ".
Wherein, three curves such as a, b and c are respectively that " partial pressure curves below 200 grams of external force are steep
It is high and steep, and the partial pressure curves of more than 200 grams of external force are gentle " curve.Therefore, it is single that processing need to be improved
The precision of member, to judge the partial pressure of more than 200 grams of external force.In addition, two curves such as d and e are respectively
The curve of " partial pressure curves of 0 to 1000 gram of external force are presented slope and risen ".Therefore, general place can be used
Unit is managed, to judge the partial pressure of more than 0 to 1000 gram of external force.
Specifically, the selection principle of processing unit and divider resistance is as follows：
First, from the principle of processing unit.In practice, external force-pressure of pressure-sensing film is obtained
Power senses resistance curve table, to calculate the maximum section with minimum of external force.For example, with Fig. 4
Divider resistance R2 when selecting 100K ohms, voltage source PS is, for example, 2.5V.And processing unit 160
For example, 10bit processor, there are at 1024 points, whereby the detecting electricity of the every bit of processing unit 160
Press as 2.441mV.For example, pressure-sensing resistance R1 when 20 grams of external force is 30K ohms.In
Pressure-sensing resistance R1 during 1000 grams of external force is about 1K ohms.Therefore, the maximum of partial pressure is calculated
Value and minimum value, respectively 24.75mV and 576.92mV.So detecting voltage with every bit
For 2.441mV processing unit 160, its degree of discrimination is obviously.
Then, from the principle of divider resistance, for example, slope (m)=Δ Y/ Δs X.For example, such as
Table one, first by pressure-sensing film with external force section classify, such as section one, section two, section three,
Section four and section five are respectively 0 to 200 gram, 200 to 400 grams, 400 to 600 grams, 600 to
800 grams and 800 to 1000 grams.Wherein, these sections are respectively with 3K, 10K, 100k ohm
Slope is relatively large, such as table one.
Step 1, first pressure-sensing film is classified with external force section, and the slope in more each section,
To obtain the divider resistance of relatively large slope, in detail such as table one.
Table one
Step 2, after the divider resistance for obtaining relatively large slope, then the slope of flat region is calculated,
The curve of the divider resistance of greatest gradient is obtained whereby.For example, 200 to 1000 grams, obtain whereby most
The divider resistance of big slope, 10k ohms, in detail such as table two.
Table two
Step 3, the option of step 1 and step 2 is occured simultaneously, find out optimal divider resistance.
Therefore, the present embodiment obtain using 10K ohms as divider resistance when, its use in general processing unit or
MCU, you can reach good judgement voltage division signal and the relation of pressure threshold, and it is single to reduce processing
The cost of member or MCU.In addition, in other embodiments, these external force sections also can be selected in user
The divider resistance of the more 10K ohms of the middle frequency of occurrences.Certainly, skilled artisan can
According to the technical spirit of the present embodiment with from processing unit, pressure-sensing film and divider resistance.
Fig. 7 is the pressure-sensing portion and the schematic diagram of battery management unit of another embodiment of the present invention.Please
Refering to Fig. 7.Wherein, Fig. 7 is similar to the pressure-sensing portion 12c in Fig. 2,12 both structures.Pressure
Power detecting part 12c, 12 both differences are：Pressure-sensing portion 12c is relative with one first face and one
Second face in the first face.First face includes an one first basalis B1, colorforming layer 120, of the same colour
The basalis B2 of chromatograph 122 and 1 second on coloured silk.And the second face is a pressure-sensing film R1.
In practice, colorforming layer 120 connects chromatograph 122 on the first basalis B1 and color.Color
Chromatograph 122 connects the basalis B2 of colorforming layer 120 and second on coloured silk.First basalis B1 and shell
Body 14 is adjacent.Second basalis B2 is adjacent with pressure-sensing film R1.Pressure-sensing film R1 has
There are a pressure-sensing resistance R1, pressure-sensing film R1 to be electrically connected to a battery management unit 16.
That is, feeling of stress is presented by two kinds of different modes in the pressure-sensing portion 12c of the present embodiment
The embodiment of survey.One of them mode is the dyestuff flowed out with damaged chromosphere, to flow into color
Upper chromatograph 122 simultaneously carries out dyeing operation to chromatograph on color 122.Another way therein is with pressure
Sensing film R1 produces voltage division signal to battery management unit 16, whereby manages battery management unit 16
Battery 10 processed stops discharge and recharge, or the charging and discharging circuit of cut-out connection battery 10.It is simple next
Say, user can be from the outward appearance of cell apparatus 1；Or function is used from the discharge and recharge of cell apparatus 1,
With judge cell apparatus 1 whether by external force collision.Wherein, external force is more than pressure threshold.
It is noted that in other embodiments, pressure-sensing portion has one first face and one and the
Simultaneously the second relative face.First face includes a colorforming layer 120, color colouring layer 122 and one
Basalis BL, as depicted in Fig. 2A.And the second face is a pressure-sensing film R1.Wherein, color
Upper chromatograph 122 connects colorforming layer 120 and basalis BL.Colorforming layer 120 and housing 14
It is adjacent.Basalis BL is adjacent with pressure-sensing film R1.And pressure-sensing film R1 has a pressure
Power senses resistance R1, and pressure-sensing film R1 is electrically connected to a battery management unit 16.Remaining is equal
It is identical, it will not be described here.
Fig. 8 is the flow chart of the external force detection method of the cell apparatus of another embodiment of the present invention.It please join
Read Fig. 8.The external force detection method of a kind of cell apparatus, suitable for a cell apparatus.Cell apparatus includes
One battery and a housing.Housing is coating or cover battery.External force detection method includes following
Step：
In step S801, a pressure-sensing portion is set between a battery and a housing.The person of connecing,
In step S803, when housing is collided by an external force, housing transmission external force to pressure-sensing portion,
And pressure-sensing portion is set to receive external force.
In step S805, judge whether external force is more than a pressure threshold.If step S805 judgement
As a result it is yes, then into step S807, the pressure-sensing portion in a first state translates into can
One second state being recorded, the second state are different from first state.Conversely, if step S805's sentences
Disconnected result is no, then into step S809, still maintains first state.
In practice, first state is one first chemical phenomenon, and the second state is one second chemical phenomenon,
And first chemical phenomenon be that finger pressure detecting part is a supersaturated solution film, and the second chemical phenomenon is
The supersaturated solution film referred to partially or fully contacts with crystal seed, and becoming solidification condensation by liquefaction is fully crystallized
Phenomenon；Or first state and the second state are respectively that one first physical phenomenon and one second physics show
As, and the first physical phenomenon is that finger pressure detecting part has one first color, and the second physical phenomenon is
Referring to the pressure-sensing portion with the first color also includes one second color；Or first state is finger pressure
Detecting part exports the voltage division signal less than pressure threshold to a battery management unit, and the second state is
Finger pressure detecting part exports the voltage division signal more than pressure threshold to battery management unit.
That is, external force detection method can pass through physical outward appearance, chemically outward appearance or electronic signal
Deng to show position, time of origin or the other information that cell apparatus is damaged by external force.This
Outside, if cell apparatus by secondary or multiple impacts, drop or thump, cell apparatus is still recordable
Secondary or multiple impacts, the second state dropped or thumped etc..For example, more electricity of recording unit records
Position, time of origin, external force size or the other information that pool device is collided, drops or thumped etc..
The present embodiment does not limit the step flow of external force detection method.
It follows that problem solved by the invention, in effective life cycle in cell apparatus,
Position, scope and degree, the course of damage or the collision of cell apparatus can effectively be presented.Battery fills
Put once being hit, if hurting the circuit layout or its correlated parts (IC, electric capacity in cell apparatus
Deng), or hurt battery in itself, it would be possible to cause cell apparatus to fail, or even produce dangerous.Cause
This, if can be by pressure-sensing portion actively to detect above-mentioned anomaly, and start active anti-
Protection mechanism, it can effectively give analysis personnel and analyze foundation in more detail.
In summary, cell apparatus of the invention by pressure-sensing portion to sense suffered by cell apparatus
External force size.Wherein, pressure-sensing portion is to include the i.e. damaged chromosphere of multiple arrival pressure thresholds；
Or it is to become solidification by liquefaction to condense the supersaturated solution film being fully crystallized to reach pressure threshold；Or
The pressure-sensing film of change pressure sensing resistance value according to external force size.Therefore, it is more than in external force
During pressure threshold, cell apparatus is by pressure-sensing portion so that apparent difference or damaged location is presented；
Or cell apparatus by pressure-sensing portion to export voltage division signal to processing unit, cause processing unit
Cut-off or the charging and discharging circuit of cut-out connection battery.Consequently, it is possible to the cell apparatus present invention carries really
The security of cell apparatus is risen, and record cell apparatus is collided by external force, hits or fallen from eminence
Fall and produce failure, damage or bad situation.
Embodiments of the invention are the foregoing is only, it is simultaneously not used to the scope of the claims of the limitation present invention.
Claims (16)
1. a kind of cell apparatus, including a battery and a housing, the housing is coating or cover the electricity
Chi Xin, it is characterised in that the cell apparatus also includes：
One pressure-sensing portion, is arranged between the battery and the housing；
Wherein, when the housing is collided by an external force, the pressure-sensing portion receives the external force, and
The external force is more than a pressure threshold, and the pressure-sensing portion in a first state translates into one second
State, second state are different from the first state.
2. cell apparatus according to claim 1, it is characterised in that wherein the pressure-sensing portion is
One pressure-sensing film, and there is a pressure-sensing resistance, the pressure-sensing film is electrically connected to one
Battery management unit, the battery management unit include a divider resistance, a voltage source, a processing unit,
One switch element and a protection location, the pressure-sensing film concatenate the voltage source and the divider resistance,
The processing unit is electrically connected with the switch element, the protection location, the pressure-sensing film and the partial pressure
Resistance.
3. cell apparatus according to claim 2, it is characterised in that the wherein voltage source, the pressure
Force sensing membrane and the divider resistance are formed as a bleeder circuit, and the bleeder circuit is providing a partial pressure
Signal gives the processing unit, and the processing unit is somebody's turn to do according to the voltage division signal with judging whether the external force is more than
Pressure threshold.
4. cell apparatus according to claim 3, it is characterised in that wherein the protection location is electrical
The battery and a first end are connected, the switch element is electrically connected with the battery and one second end, and
When the processing unit judges that the external force is more than the pressure threshold, the processing unit controls the switch list
Member is in cut-off state, or controls the protection location to be in guard mode.
5. cell apparatus according to claim 3, it is characterised in that the wherein battery management unit
Also include a recording unit and a timing unit, the processing unit is electrically connected, the timing unit
The processing unit is given to provide a time parameter, should when the processing unit ends the switch element
The time of origin or force-bearing situation of the recording unit records first state or second state.
6. cell apparatus according to claim 1, it is characterised in that wherein the pressure-sensing portion is wrapped
Include one first basalis, a colorforming layer, color colouring layer and one second basalis, the color
Forming layer connects chromatograph on first basalis and the color, and chromatograph connects the color and formed on the color
Layer and second basalis, first basalis is adjacent with the housing, second basalis and the battery
Core is adjacent.
7. cell apparatus according to claim 6, it is characterised in that the wherein colorforming layer bag
Multiple chromospheres are included, the multiple chromosphere is attached at first basalis, and the housing is acted in the external force,
Cause the multiple chromosphere some of them for being attached at first basalis damaged by external force extruding,
The dyestuff for causing to be coated in some of chromospheres flow to chromatograph on the color, and chromatograph is paper on the color
Material or cloth material.
8. cell apparatus according to claim 1, it is characterised in that wherein the pressure-sensing portion is wrapped
A colorforming layer, color colouring layer and a basalis are included, chromatograph connects the color shape on the color
Stratification and the basalis, the colorforming layer is adjacent with the housing, and the basalis is adjacent with the battery.
9. cell apparatus according to claim 8, it is characterised in that the wherein colorforming layer bag
Multiple chromospheres are included, the multiple chromosphere is attached at chromatograph on the color, and the housing is acted in the external force,
It is damaged by external force extruding to cause to be attached at the multiple chromosphere some of them of chromatograph on the color,
The dyestuff for causing to be coated in some of chromospheres flow to chromatograph on the color, and chromatograph is paper on the color
Material or cloth material.
10. cell apparatus according to claim 1, it is characterised in that wherein the first state is
One first chemical phenomenon, second state is one second chemical phenomenon, and first chemical phenomenon is finger
The pressure-sensing portion is a supersaturated solution film, second chemical phenomenon for refer to partially or fully should
Supersaturated solution film contacts with crystal seed, and becoming solidification by liquefaction condenses the phenomenon being fully crystallized.
11. cell apparatus according to claim 1, it is characterised in that the wherein pressure-sensing portion
With one first face and second face relative with first face, first face include one first basalis,
One colorforming layer, color colouring layer and one second basalis, the colorforming layer connect this first
Chromatograph on basalis and the color, chromatograph connects the colorforming layer and second basalis on the color,
First basalis is adjacent with the housing, and second basalis is adjacent with the battery, and second face
For a pressure-sensing film, and there is a pressure-sensing resistance, the pressure-sensing film is electrically connected to
One battery management unit.
12. cell apparatus according to claim 1, it is characterised in that the wherein pressure-sensing portion
With one first face and second face relative with first face, first face include a colorforming layer,
One color is painted layer and a basalis, and chromatograph connects the colorforming layer and the basalis on the color,
The colorforming layer is adjacent with the housing, and the basalis is adjacent with the battery, and second face is one
Pressure-sensing film, and there is a pressure-sensing resistance, the pressure-sensing film is electrically connected to an electricity
Pond administrative unit.
A kind of 13. external force detection method of cell apparatus, suitable for a cell apparatus, the cell apparatus bag
A battery and a housing are included, the housing is coating or cover the battery, it is characterised in that should
External force detection method includes：
The one pressure-sensing portion according to claim 1 to 12 any of which item is set in the battery
Between the housing；
When the housing is collided by an external force, the pressure-sensing portion receives the external force, and the external force
More than a pressure threshold, the pressure-sensing portion in a first state translates into one second state,
Second state is different from the first state.
14. the external force detection method of cell apparatus according to claim 13, it is characterised in that its
In the first state be one first chemical phenomenon, second state is one second chemical phenomenon, and this
One chemical phenomenon is that the finger pressure-sensing portion is a supersaturated solution film, and second chemical phenomenon is
The supersaturated solution film referred to partially or fully contacts with crystal seed, and becoming solidification by liquefaction condenses knot completely
Brilliant phenomenon.
15. the external force detection method of cell apparatus according to claim 13, it is characterised in that its
In the first state be one first physical phenomenon, second state is one second physical phenomenon, and this
One physical phenomenon has one first color to refer to the pressure-sensing portion, and second physical phenomenon has to refer to
The pressure-sensing portion for having first color also includes one second color.
16. the external force detection method of cell apparatus according to claim 13, it is characterised in that its
In the first state it is electric to one to refer to the voltage division signal that the pressure-sensing portion export less than the pressure threshold
Pond administrative unit, and second state is this point of finger pressure-sensing portion output more than the pressure threshold
Pressure signal gives the battery management unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542163.1A CN107611512A (en) | 2016-07-12 | 2016-07-12 | Cell apparatus and its external force detection method |
| TW105122049A TWI605629B (en) | 2016-07-12 | 2016-07-13 | Battery device and method for detecting external force thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542163.1A CN107611512A (en) | 2016-07-12 | 2016-07-12 | Cell apparatus and its external force detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107611512A true CN107611512A (en) | 2018-01-19 |
Family
ID=61023179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610542163.1A Pending CN107611512A (en) | 2016-07-12 | 2016-07-12 | Cell apparatus and its external force detection method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107611512A (en) |
| TW (1) | TWI605629B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10948544B2 (en) | 2018-03-08 | 2021-03-16 | Industrial Technology Research Institute | Battery safety identifying method and method for setting hazard levels of battery internal short circuit and warning system using the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383198A (en) * | 2001-04-24 | 2002-12-04 | 华邦电子股份有限公司 | Pressure distribution measuring and feedback method for pressure part acting on surface of chip |
| CN102288336A (en) * | 2011-07-21 | 2011-12-21 | 中国科学院自动化研究所 | Dual-threshold detecting system and method for ground contact force of polypod robot |
| CN103474710A (en) * | 2012-06-07 | 2013-12-25 | 深圳市海盈科技有限公司 | Lithium ion battery pack and performance monitoring method thereof |
| CN205355120U (en) * | 2016-02-29 | 2016-06-29 | 宁德时代新能源科技股份有限公司 | Battery pack |
-
2016
- 2016-07-12 CN CN201610542163.1A patent/CN107611512A/en active Pending
- 2016-07-13 TW TW105122049A patent/TWI605629B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383198A (en) * | 2001-04-24 | 2002-12-04 | 华邦电子股份有限公司 | Pressure distribution measuring and feedback method for pressure part acting on surface of chip |
| CN102288336A (en) * | 2011-07-21 | 2011-12-21 | 中国科学院自动化研究所 | Dual-threshold detecting system and method for ground contact force of polypod robot |
| CN103474710A (en) * | 2012-06-07 | 2013-12-25 | 深圳市海盈科技有限公司 | Lithium ion battery pack and performance monitoring method thereof |
| CN205355120U (en) * | 2016-02-29 | 2016-06-29 | 宁德时代新能源科技股份有限公司 | Battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI605629B (en) | 2017-11-11 |
| TW201803194A (en) | 2018-01-16 |
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Address after: 215500 Southeast Avenue 868, Changshu High-tech Industrial Development Zone, Jiangsu Province Applicant after: Taipu Power New Energy (Changshu) Co., Ltd. Address before: 215500 No. 2 Southeast Avenue, Changshu City, Jiangsu Province Applicant before: Veccom Electronics (Changshu) Co. Ltd. |
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Application publication date: 20180119 |