CN108061743A - A kind of polar plate of lead acid storage battery detector - Google Patents

A kind of polar plate of lead acid storage battery detector Download PDF

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Publication number
CN108061743A
CN108061743A CN201711326963.0A CN201711326963A CN108061743A CN 108061743 A CN108061743 A CN 108061743A CN 201711326963 A CN201711326963 A CN 201711326963A CN 108061743 A CN108061743 A CN 108061743A
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CN
China
Prior art keywords
probe
pole plate
column
impedance
storage battery
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CN201711326963.0A
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Chinese (zh)
Inventor
高军
陈学能
蔡跃宗
杨勇
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厦门大学
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Application filed by 厦门大学 filed Critical 厦门大学
Priority to CN201711326963.0A priority Critical patent/CN108061743A/en
Publication of CN108061743A publication Critical patent/CN108061743A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic means
    • G01B7/02Measuring arrangements characterised by the use of electric or magnetic means for measuring length, width or thickness
    • G01B7/06Measuring arrangements characterised by the use of electric or magnetic means for measuring length, width or thickness for measuring thickness
    • G01B7/063Measuring arrangements characterised by the use of electric or magnetic means for measuring length, width or thickness for measuring thickness using piezo-electric resonators
    • G01B7/066Measuring arrangements characterised by the use of electric or magnetic means for measuring length, width or thickness for measuring thickness using piezo-electric resonators for measuring thickness of coating
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/20Investigating the presence of flaws

Abstract

The invention discloses a kind of polar plate of lead acid storage battery detector, including pressure testing machine, impedance instrument, probe and data acquisition processing device;The pressure testing machine includes the column and support device that are arranged on operating platform;The column is equipped with pressure sensor and probe, and the pressure sensor is used for acquisition probe spacing and pressure value;The impedance instrument is connected by conducting wire with probe, for gathering DC resistance or AC impedance;The data acquisition processing device is connected with pressure testing machine, impedance instrument, for gathering the two data and handling.In the case where not destroying pole plate, different parts point resistance value under a certain pressure or impedance value, electrode thickness on measuring pad, it can quantify the result of judge data discrete with standard deviation, variance, mean difference, coefficient of variation etc. by data acquisition processing device, to judge the uniformity in pole plate between compatible dispersiveness, uniformity and the thickness of slab uniformity of the components such as active material and various additives and the not plates of similar polarity of same process production.

Description

A kind of polar plate of lead acid storage battery detector
Technical field
The present invention relates to a kind of polar plate of lead acid storage battery detectors.
Background technology
In the manufacturing process of lead-acid accumulator, the homogeneity of the uniformity of pole plate quality, i.e. pole plate directly affects finished product The comprehensive performance of battery.The dispersing uniformity of active material and various additives in mixing process is to influence pole plate uniformity Most basic reason, and be one of most critical process of production process with cream and coated plate.
There are two types of common and herbal paste formulas, and one kind is that additive is configured to suspension, again with dilute sulfuric acid, water etc. when with cream It adds in certain sequence in paste mixing machine;One kind be by additive directly with lead powder in paste mixing machine dry-mixing, then add dilute sulfuric acid, water Deng progress and cream.Since the density variation between various materials is larger, particularly carbon material is lighter, is easily suspended in upper strata, therefore institute Have it is more difficult in material mixed process stir evenly, lead plaster quality is checked with apparent gravity in industry.Coated plate technique is that lead plaster is equal For the full-filling of even ground on grid, being related to slab lattice making process has casting grid, the stretch grid, punched holes type grid, woven lead mesh plate Grid, tube-type slab lattice etc..In traditional handicraft, to improve production efficiency, coated plate quality is weighed and is measured thickness of slab to sample and weigh, this Method can conveniently, roughly play the purpose for checking green plate quality.
Either from the point of view of the apparent gravity of lead plaster or the weight of green plate and thickness of slab, in lead plaster each component mixing after whether Be uniformly dispersed, the same pole plate after full-filling in itself and same process production not plates of similar polarity between whether have uniformity, still It can not judge, and this is all the key factor for influencing performances of the lead-acid battery.
On the detection of pole plate homogeneity, have in the prior art using differential thermal analysis technology, in high temperature high pure air environment Under detection method;Also there is the subjective judgement method using electron microscope and the observation of power spectrum Elemental redistribution;Or utilize chemical method The above method is detected ... after extraction lead plaster or is had higher requirements to detection atmosphere and detection temperature or sample is grasped It is more numerous and diverse to make complicated or data analysis, thus entire lead-acid accumulator manufacturing at present, in this respect there are no accordingly compared with Perfect, easily surveillance and control measure and detection method.
How fast and effeciently to detect the uniformity of active material and various additives batch mixing in lead plaster, same pole plate and With the uniformity between the not plates of similar polarity under technique, play on-line monitoring pole plate quality and ensure pole plate quality, avoid unqualified pole Plate flows into next process, causes the wasting of resources, cost-effective, becomes the key for influencing industry development.
The content of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, provide a kind of polar plate of lead acid storage battery detection Instrument solves pole plate detection sampling, operation, data processing complex in above-mentioned background technology and pole plate quality cannot be monitored online And the problems such as not destroying pole plate quality.
The technical solution adopted by the present invention to solve the technical problems is:Provide a kind of polar plate of lead acid storage battery detection Instrument, including pressure testing machine, impedance instrument, probe and data acquisition processing device;
The pressure testing machine includes the column and support device that are arranged on operating platform, and the support device is used to put Put pole plate to be measured;The column is equipped with pressure sensor and probe, and the probe is directed toward pole plate direction to be measured, is visited for gathering Pin spacing and pressure value;
The impedance instrument is connected by conducting wire with probe, for gathering DC resistance or AC impedance;
The data acquisition processing device is connected with pressure testing machine, impedance instrument, for gathering the two data and locating Reason, so as to the homogeneity of Detection electrode.
In a preferred embodiment of the present invention, the data acquisition processing device data of acquisition are carried out standard deviation and/ Or variance, mean difference, coefficient of variation data processing.
In a preferred embodiment of the present invention, the probe includes at least one pressure test probe.The top of the probe End includes at least one needle point, and the top cross section of the probe is long and/or wide size is 1 μm~5mm.
In a preferred embodiment of the present invention, the support device includes the support that a horizontal or vertical direction is continuously driven Platform, for the pole plate to be measured to be placed horizontally at support platform;The column is arranged above support platform, and described Column includes the movable end of vertical direction movement, and the probe is arranged at the needle point of the lower face of movable end and probe vertically It is directed toward pole plate to be measured.The support platform is additionally provided with probe, and the needle point of the probe points vertically upwards pole plate to be measured.
In a preferred embodiment of the present invention, the support device includes a movable supporting block, in the supporting block Pole plate fixing groove is offered, for the pole plate to be measured to be erectly inserted into pole plate fixing groove and plays fixation;The column Including the first column, first column is arranged at the one side of supporting block on operating platform, and the probe is arranged at the first column, And the needle point of the probe points vertically upwards pole plate to be measured.The column is included positioned at supporting block both sides, spaced first Column and the second column, first column and the second column are parallel with the fluting direction of the pole plate fixing groove;The probe Side wall of the column close to supporting block is arranged at, and the needle point of the probe points vertically upwards pole plate to be measured.
In a preferred embodiment of the present invention, the impedance instrument includes instrument for measuring DC resistance, test voltage model 1~10000V is enclosed, tests current range 10fA~1000A, 1 μ Ω~10000T Ω of resistance value scope;
In a preferred embodiment of the present invention, the impedance instrument includes ac impedance measurement instrument, test voltage model 0~10000V is enclosed, tests 0~1000A of current range, 0~100MHz of frequency range, AC impedance 0~1000T of scope Ω.
The active material main component of green plate is PbO, 3PbOPbSO after lead-acid accumulator cures4·H2O、4PbO· PbSO4、PbSO4、PbO·PbSO4, the substances such as a small amount of pure lead and water.Common cathode additive agent has humic acid, lignin, sulfuric acid Barium, staple fiber, carbon material etc.;Common anode additive has carbon material, organic polymer, inorganic additive, staple fiber etc..By In green plate, actually pure lead content is rare, and except carbon material, other compositions tend to be non-conductive, and DC resistance or exchange resistance Anti- value is different, widely different.Therefore in terms of electric conductivity, carbon material plays a leading role in green plate each component.Therefore, The fluctuation size of different parts point DC resistance or AC impedance on green plate is measured, it is active on pole plate so as to judge The dispersiveness of the dispersiveness of substance and its additive, especially carbon material;Carbon material and active material can also be judged simultaneously Compatible dispersiveness because carbon material is different from the contact condition of active material, can cause or cause actual resistance or impedance different.
The main component of the ripe pole plate of cathode is lead after lead-acid accumulator chemical conversion, and the main component of the ripe pole plate of anode is titanium dioxide Lead.Lead is good conductor, and there is brown lead oxide characteristics, the two such as the low, good conductivity of resistivity to be risen in ripe pole plate each component Main conductive acts on, so when using accurate instrument for measuring DC resistance or ac impedance measurement instrument and switch to conductor and (partly lead Body) resistance or impedance measurement program end measure different position point resistance value or the fluctuation size of impedance value on ripe pole plate, equally may be used To judge the dispersiveness of active material and its additive on pole plate, the especially dispersiveness of carbon material and carbon material and active matter The compatible dispersiveness of matter.
In the case where not destroying polar plate of lead acid storage battery, Detection electrode different parts point under a certain pressure, live by pole plate Property substance at DC resistance between (away from grid rib position) upper and lower surface or AC impedance (obtain active material not With the DC resistance or AC impedance of location point) and thickness of slab distance, it is straight to different position by data acquisition processing device The comparison of galvanic electricity resistance value or AC impedance size and electrode thickness, using variance, standard deviation (or mean difference, coefficient of variation) etc. Measurement data is handled, so as to judge resistance value or impedance value, the fluctuation size of thickness of slab, and then can quantify to judge activity The dispersiveness of each component, the homogeneity of uniformity and pole plate and thickness of slab uniformity in substance and various additives play online Continuously examine and monitor the purpose of pole plate quality.Because the resistance value and thickness of slab value of high-quality pole plate have homogeneity, the two from Dissipating property size can be as the Appreciation gist of homogeneity, therefore variance, standard deviation (or mean difference, coefficient of variation) the greater are quality Poor pole plate, variance, standard deviation (or mean difference, coefficient of variation) smaller are the preferable pole plate of quality, so as to fulfill quantization Judge pole plate quality good or not.
Compared with background technology, it has the following advantages that the technical program:
1. apparatus of the present invention are simple, polar plate of lead acid storage battery production line is can be directly used for, realizes that on-line continuous is examined and supervised The purpose of pole plate quality is controlled, unqualified pole plate is avoided to flow into next process, following resource is caused to waste, it is cost-effective, have Great economic benefit and practicability etc..
2. the setting of a variety of probes of the present invention, can quickly and efficiently realize that continuous single-point detects one by one or multiple spot is examined simultaneously It surveys.
3. present invention sampling, operation, data processing are simple, detection range is wide, and data are true and reliable, and detection process is not broken Bad pole plate can ensure the quality of pole plate.
Description of the drawings
Fig. 1 is 1 apparatus structure schematic diagram of embodiment.
Fig. 2 is 2 apparatus structure schematic diagram of embodiment.
Fig. 3 is probe shape schematic diagram.Wherein, the top cross-section shape signal of probe A-F shown in a-f correspondences.
Specific embodiment
Present disclosure is illustrated with reference to the accompanying drawings and examples:
Embodiment 1
It refer to Fig. 1 and 3, a kind of polar plate of lead acid storage battery detector of the present embodiment, including pressure testing machine 1, impedance Tester 2, probe 3 and data acquisition processing device;
The pressure testing machine 1 includes the column and support device 4 that are arranged on operating platform, and the support device 4 is used In placement pole plate 5 to be measured;The column is equipped with pressure sensor and probe 3, and the probe 3 is directed toward 5 direction of pole plate to be measured, uses In 3 spacing of acquisition probe and pressure value;
The impedance instrument 2 is connected by conducting wire with probe 3, for gathering DC resistance or AC impedance;
The data acquisition processing device is connected with pressure testing machine 1, impedance instrument 2, for gathering the two data, and It carries out carrying out variance and/or standard deviation data processing, so as to the homogeneity of Detection electrode 5.
The present embodiment uses the pressure testing machine 1 of queen post, and high-stroke test space selects adjusting speed accuracy height, performance steady Fixed servo-drive system can complete the Mechanics Performance Testings such as the compression of sample.The queen post pressure testing machine 1 of the present embodiment, Pressure limit is 0~200N (or can replace different range pressure sensors according to actual demand), 0~500mm of stroke, displacement speed Rate 0.0001~200mm/min of adjustable extent, efficiency test width 350mm.
In the present embodiment, the support device 4 includes a movable supporting block, and pole plate is offered in the supporting block Fixing groove, for the pole plate 5 to be measured to be erectly inserted into pole plate fixing groove and plays fixation;The column includes being located at branch Bracer both sides, spaced first column and the second column, first column and the second column and the pole plate fixing groove Fluting direction it is parallel;The probe 3 is arranged at side wall of the column close to supporting block, and the needle point of the probe 3 vertically refers to To pole plate 5 to be measured.
The impedance instrument 2 that the present embodiment uses for Insulation Resistance Tester, i.e., one collection insulation resistance instrument, picoammeter, Digital potentiometer, digital high voltage source table 4 close 1 professional instrument.It is controlled by high-performance microprocessor, test voltage scope 1~ 1000V tests current range 2nA~2mA, 500 Ω of test resistance value scope~1000T Ω.
The probe 3 includes at least one pressure test probe.The pressure test probe and 1 host of pressure testing machine Between contact be insulation.The top of the probe 3 include at least one needle point, and the probe 3 top cross section length and/ Or wide size is 1 μm~5mm.The pressure test probe of the present embodiment, material are wolfram steel, outside shaped like Fig. 3 (C-b), probe tip The a diameter of 1mm in circular section.Single probe 3 detects point by point above and below detection process.
The data acquisition processing device can realize online immediately synchronous single-point or multipoint acquisition record 1 He of pressure testing machine Data of the Insulation Resistance Tester in detection process, including distance, DC resistance between pressure, probe 3.It is automatic simultaneously Spacing, DC resistance to acquisition and recording carry out the processing such as standard deviation and/or variance, mean difference, the coefficient of variation.Meanwhile " specific resistance " (resistance value of same measurement point acquisition and the ratio of spacing) may be employed to carry out standard deviation and/or variance, put down The processing such as inequality, the coefficient of variation, as judging basis.
It is as follows that polar plate of lead acid storage battery detection process is carried out using the present embodiment device:
(1) according to the size of 5 size of pole plate, dispersedly different position chooses measurement point in plate face, and every block of plate, which is chosen, to be surveyed Amount point is at least 10.Measurement point is 3 drop point position of probe, should be at the center of grid grid, away from rib, therefore can basis Grid size chooses the probe 3 of suitable dimension.
(2) pole plate 5 to be measured is lain in a horizontal plane on pressurization platform, adjustment pressure test probe 3 connects with 5 measurement point of pole plate It touches (can automatic identification or adjust manually), program pressure process is initially entered, by data acquisition processing device, in actual pressure When reaching preset value, immediate record actual pressure value, 3 spacing of probe and resistance value instantly, so that it is guaranteed that the data are synchronous Exact value under state.
(3) by discharge degree, after equipment is restored to measurement original state, the movement of support device is passed through, you can under replacement The measurement of one measurement point or next piece of pole plate 5, is operated continuously.
(4) processing such as specific resistance, variance, standard deviation (or mean difference, coefficient of variation) are carried out to data measured, draws test As a result.
Using above device and the internal different parts point of the measurable same pole plate of method (cathode life plate) in certain pressure Under resistance value, electrode thickness, the homogeneity of more same pole plate;Also the not plates of similar polarity of two pieces of measurable same process production (raw plate) internal different parts point resistance value under a certain pressure, electrode thickness, compare the homogeneity between not plates of similar polarity:
(1) homogeneity of more same pole plate:
It is monitored by taking two pieces of pole plates as an example, the internal different parts o'clock of measurement same pole plate (cathode life plate) are in a level pressure Resistance value, electrode thickness under power.The measurement pressure used is 5N, test voltage 100V.
In the original lead plaster of tested pole plate 1. in addition to containing lead powder, additive includes barium sulfate (0.85%), humic Sour (0.8%), carbon black (0.15%), graphite (0.1%), staple fiber (0.05%) etc., through with cream, coated plate, cure the works such as dry Cathode life plate is made for testing in sequence.
In the original lead plaster of tested pole plate 2. in addition to containing lead powder, additive includes barium sulfate (0.6%), humic acid (0.6%), carbon black (0.2%), staple fiber (0.06%) etc. are used through cathode life plate is made with processes such as cream, coated plate, curing dryings In test.
As a result it is as follows:
1 same pole plate difference of table position resistance value and thickness of slab value statistical form
It can be drawn by table 1,1. the resistance of middle each point test, thickness of slab value and specific resistance discreteness are small for pole plate, resistance value, thickness of slab Standard deviation, the mean difference of value and specific resistance are smaller, and illustrating pole plate, 1. internal active material and various additives are uniformly dispersed, should Pole plate quality is good.
2 same pole plate difference of table position resistance value and thickness of slab value statistical form
It can be drawn by table 2, the pole plate resistance discreteness that 2. middle each point is tested is big, and the standard deviation of resistance value and specific resistance is put down Inequality is larger, and illustrating pole plate, 2. internal active material (or additive) is scattered uneven, and the pole plate is of poor quality.
Meanwhile from table 1,2, the resistance value of the pole plate 1. test with pole plate 2. can be drawn, under the conditions of various processes It is different not obtain the order of magnitude of pole plate resistance value, illustrates that detector of the present invention can detect that various processes condition bottom crown Otherness.
(2) homogeneity between not plates of similar polarity is compared:
Measure two blocks of the same process production not resistance of the internal different parts point of plates of similar polarity (raw plate) under a certain pressure Value, electrode thickness.The measurement pressure used is 5N, test voltage 110V.
In the original lead plaster of tested pole plate in addition to containing lead powder, additive includes barium sulfate (0.6%), humic acid (0.6%), carbon black (1.2%), staple fiber (0.06%) etc. are used through cathode life plate is made with processes such as cream, coated plate, curing dryings In test.Measurement result is as follows:
Resistance value and thickness of slab value statistical form between 3 same process pole plate of table
As seen from Table 3, pole plate is 3. small with the test result discreteness of pole plate 4. electrode thickness, and standard deviation, mean difference are equal It is smaller.But for pole plate 4. in the testing result of resistance value (or specific resistance), standard deviation and mean difference are much larger than the test value of pole plate 3., Illustrating pole plate, 3. internal active material is uniformly dispersed (containing additive), 4. which is better than pole plate.Show identical work simultaneously The pole plate homogeneity of skill production is poor.
Embodiment 2
Refer to Fig. 2, embodiment 2 and embodiment 1 difference lies in:
The present embodiment uses open side type pressure testing machine 1 and Insulation Resistance Tester 2.
The pressure testing machine 1 rotates the movable end driven on column by motor, by movable end give tested test block into Row loading, has enough test stroke spaces, and the servo-drive system that adjusting speed accuracy height, performance is selected to stablize can complete sample The Mechanics Performance Testings such as compression.The pedestal of the pressure testing machine 1 of the present embodiment is operating platform, static with pedestal, unilateral Mobile vertical lift pressuring method, to realize single or continuous pressure.Its pressure limit (or can be according to actual need for 0~500N Ask and replace different range pressure sensors), 0~900mm of stroke, rate of displacement 0.0001~500mm/min of adjustable extent, test The width of part is unrestricted, can meet the needs of most of plate dimensions.
The support device 4 is arranged at operating platform, and the support platform being continuously driven including a horizontal or vertical direction, For the pole plate 5 to be measured to be placed horizontally at support platform;The column is arranged above support platform, and the column Include the movable end of vertical direction movement, the probe 3 is arranged at the lower face of movable end and the needle point of probe 3 vertically refers to To pole plate 5 to be measured.The support platform is additionally provided with probe 3, and the needle point of the probe 3 points vertically upwards pole plate 5 to be measured.
The impedance instrument 2 of the present embodiment includes Insulation Resistance Tester, i.e., a kind of quickly to measure object (pole plate 5) absolutely The measuring instrument of edge performance possesses high-precision feature, can accurately export resistance (resistivity) value or defeated of testee Go out conductance (rate) value.Test voltage 10~1000V of scope, test current range 1pA~2mA, resistance value scope 10k Ω~ 1000TΩ。
The pressure test probe 3 of the present embodiment, beryllium copper, outside shaped like Fig. 3 (B-b), the 3 a diameter of 1mm in top circular section of probe.
The present embodiment for two pieces of measurement same process production not the internal different parts o'clock of plates of similar polarity (raw plate) in a level pressure Resistance value, electrode thickness under power, compare the uniformity between not plates of similar polarity.Test pressure is 7N, test voltage 120V.
In the original lead plaster of tested pole plate in addition to containing lead powder, additive includes barium sulfate (0.85%), humic acid (0.8%), carbon black (0.15%), graphite (0.1%), staple fiber (0.05%) etc., through with cream, coated plate, cure the processes such as dry Cathode life plate is made for testing.Measurement result is as follows:
Resistance value and thickness of slab value statistical form between 4 same process pole plate of table
Can be drawn by table 4,5., 6. the resistance of middle each point test and thickness of slab value, specific resistance discreteness are small for pole plate, resistance value and Pole plate thickness, the standard deviation of specific resistance, mean difference are smaller, and illustrating pole plate, 5., 6. internal active material is scattered equal (containing additive) Even, pole plate quality is good.Show that the pole plate homogeneity of same process production is good simultaneously.
Skilled person will appreciate that when the technical parameter of the present invention changes in following scope, it is contemplated that obtain Same as the previously described embodiments or similar technique effect:
Detection process can be that detection can also be that 3 multiple spot of multiprobe detects simultaneously to single probe 3 point by point, and probe 3 is how many It can be increased and decreased according to actually detected requirement.Test point is away from grid rib position.
Single probe 3 detects point by point, can be that each single probe 3 contacts pressurization or the single probe in one side up and down 3rd, another side plane pressurization (material of the plane for electric conductivity is good and the metal or alloy of high rigidity).If support device 4 is Static, pressure test probe 3 can axially realize horizontal or vertical direction displacement according to the pressurization in pressure testing machine 1 to identify Tested point;If pressure test probe 3 is horizontally or vertically fixes, support device 4 can realize that horizontal or vertical direction displacement comes Mobile tested point.
3 multiple spot of multiprobe detects simultaneously, can be that multiprobe 3 contacts pressurization or one side multiprobe 3 separately simultaneously up and down One side planar movement pressurization.Support device 4 can be that the continuous delivery platform of horizontal or vertical direction or multi-directionally move Movable supporting block, to realize that 5 continuous conveying of multi-electrode detects.
Shown impedance instrument 2 includes instrument for measuring DC resistance, built-in insulation resistance test program end and conductor resistance Test program end can switch over according to actual measurement demand, can both measure insulation bulk resistor, can also measure conductor electricity Resistance, semiconductor resistor.The resistance meter test voltage 1~10000V of scope tests current range 10fA~1000A, 1 μ Ω~10000T Ω of resistance value scope;Further include ac impedance measurement instrument 2, built-in insulation testing impedance program end and conductor Testing impedance program end can switch over according to actual measurement demand, can both measure insulator impedance, can also measure conductor Impedance, semiconductor impedance.The ac impedance measurement instrument 2 tests 0~10000V of AC voltage range, alternating current scope 0 ~1000A, 0~100MHz of frequency range, AC impedance 0~10000T of scope Ω.
3 shape of pressure test probe includes cylinder, triangular prism, cuboid, other prisms or cone.Probe 3 top can be a needle point point, multiple needle points point, a concave surface, a spherical surface or a plane.The top of probe 3 The shape of cross section can be a point, circle, ellipse, triangle, square, rectangle or other polygons;Probe 3 is horizontal Section maximum vertical, horizontal size can be set and be replaced according to actual test requirement at 1 μm to 5mm.The pressure test The material of probe 3 is electric conductivity is good and the metal or alloy of high rigidity, including the metals such as copper, beryllium, iron, tungsten, aluminium or conjunction Gold, high conductivity carbon-based material (such as graphite, graphene, carbon-point) and above-mentioned metal, alloy, carbon-based material electroplate, The metallic element of at least one high conductivity such as gold, platinum, nickel.The material of pressure test probe 3 can also be electroplate, gold, The high intensity high molecular material of at least one high-conductive metal element such as platinum, nickel;Such high intensity high molecular material can be IXEF, PA, PPA, PBT, PET, PEEK, PEI, PES, POM, PPS, PPO, PPSU, PSU etc. and its material by fiberglass reinforced Material.
The above is only present pre-ferred embodiments, therefore cannot limit the scope implemented of the present invention according to this, i.e., according to The equivalent changes and modifications that the scope of the claims of the present invention and description are made all should still belong in the range of the present invention covers.

Claims (10)

1. a kind of polar plate of lead acid storage battery detector, it is characterised in that:Including pressure testing machine, impedance instrument, probe sum number According to acquisition processing device;
The pressure testing machine includes the column and support device that are arranged on operating platform, and the support device is treated for placing Survey pole plate;The column is equipped with pressure sensor and probe, and the probe is directed toward pole plate direction to be measured, between acquisition probe Away from and pressure value;
The impedance instrument is connected by conducting wire with probe, for gathering DC resistance or AC impedance;
The data acquisition processing device is connected with pressure testing machine, impedance instrument, for gathering the two data and handling, from And the homogeneity of Detection electrode.
2. a kind of polar plate of lead acid storage battery detector according to claim 1, it is characterised in that:The data acquisition process Device carries out standard deviation and/or variance, mean difference, coefficient of variation data processing to the data of acquisition.
3. a kind of polar plate of lead acid storage battery detector according to claim 1, it is characterised in that:The probe is included at least One pressure test probe.
4. a kind of polar plate of lead acid storage battery detector according to claim 1, it is characterised in that:The top bag of the probe Include at least one needle point, and the top cross section of the probe is long and/or wide size is 1 μm~5mm.
5. a kind of polar plate of lead acid storage battery detector according to claim 1, it is characterised in that:The support device includes The support platform that one horizontal or vertical direction is continuously driven, for the pole plate to be measured to be placed horizontally at support platform;Institute Column is stated to be arranged above support platform, and the column includes the movable end of vertical direction movement, the probe is arranged at The lower face of the movable end and needle point of probe points vertically upwards pole plate to be measured.
6. a kind of polar plate of lead acid storage battery detector according to claim 5, it is characterised in that:The support platform is also set There is probe, the needle point of the probe points vertically upwards pole plate to be measured.
7. a kind of polar plate of lead acid storage battery detector according to claim 1, it is characterised in that:The support device includes One movable supporting block offers pole plate fixing groove in the supporting block, for the pole plate to be measured to be erectly inserted into pole Plate fixing groove simultaneously plays fixation;The column includes the first column, and first column is arranged at supporting block on operating platform One side, the probe is arranged at the first column, and the needle point of the probe points vertically upwards pole plate to be measured.
8. a kind of polar plate of lead acid storage battery detector according to claim 7, it is characterised in that:The column includes being located at Supporting block both sides, spaced first column and the second column, first column and the second column are fixed with the pole plate The fluting direction of slot is parallel;The probe is arranged at side wall of the column close to supporting block, and the needle point of the probe vertically refers to To pole plate to be measured.
9. a kind of polar plate of lead acid storage battery detector according to claim 1, it is characterised in that:The impedance instrument bag Instrument for measuring DC resistance is included, test voltage 1~10000V of scope tests current range 10fA~1000A, 1 μ of resistance value scope Ω~10000T Ω.
10. a kind of polar plate of lead acid storage battery detector according to claim 1, it is characterised in that:The impedance instrument Including ac impedance measurement instrument, test voltage 0~10000V of scope tests 0~1000A of current range, and frequency range 0~ 100MHz, AC impedance 0~1000T of scope Ω.
CN201711326963.0A 2017-12-13 2017-12-13 A kind of polar plate of lead acid storage battery detector CN108061743A (en)

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CN109270350A (en) * 2018-10-26 2019-01-25 元能科技(厦门)有限公司 A kind of pole piece resistance measuring instrument, system and method
CN109358234A (en) * 2018-09-29 2019-02-19 元能科技(厦门)有限公司 A kind of pole piece resistance conductivity test method
CN109855825A (en) * 2018-12-28 2019-06-07 广东天劲新能源科技股份有限公司 A kind of device and method of vibration-testing battery core hardness

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