CN105674920A - Battery inspection apparatus - Google Patents
Battery inspection apparatus Download PDFInfo
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- CN105674920A CN105674920A CN201510810131.0A CN201510810131A CN105674920A CN 105674920 A CN105674920 A CN 105674920A CN 201510810131 A CN201510810131 A CN 201510810131A CN 105674920 A CN105674920 A CN 105674920A
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- battery
- transmission
- lead plate
- ray
- battery lead
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a battery inspection apparatus capable of inspecting position offset of an electrode plate even for high-capacity stacked battery. The battery inspection apparatus comprises an X-ray tube (a radioactive ray source), a positioning unit, a moving unit enabling the battery to move toward a laminated direction of the electrode plate, an X-ray detector detecting X-ray beams transilluminating the battery and enabling the X-ray beams to work as transmission image output, a camera control part controlling the moving unit and the radioactive ray detector for the battery positioned by the positioning unit and enabling the battery to move along a laminated direction, and an image compound part. In a plurality of moving directions, radioactive rays after transmission on an electrode plate direction are detected to acquire a plurality of transmission images; the same regulated areas are extracted for the plurality of acquired transmission images to acquire transmission image offset and offset amount of the moving position; then the offset are added, so compound is conducted and a compound image is achieved.
Description
Technical field
The present invention relates to container inner lamination the positive plate of the battery of stack that positive plate (battery lead plate of positive pole) alternately has been configured with negative plate (battery lead plate of negative pole) and the position of negative plate offset the battery check device checked.
Background technology
In recent years, because the prosperity of the equipment of portable phone etc. and electromobile is practical, the needing of the secondary cell such as lithium ion battery, nickel metal hydride battery expands.
Especially, make electrolytic solution become the lithium ion polymer battery not easy-to-leak liquid of gel, in addition because energy density height, can be slim etc. reason and start to popularize. Lithium ion polymer battery is the structure (following stack) with negative plate, the positive plate of plane shape having been piled up some layers and become across dividing plate.
In this lithium ion polymer battery, when positive plate protrudes than negative plate, during use, the positive plate sometimes protruded has lithium precipitate out and short circuit and catch fire. For this reason, ensure the position of positive plate and negative plate and avoid producing skew being important for safety. This skew carries out radioactive rays perspective after sealing and can be checked through.
As the conventional battery check device of such radioactive rays perspective carrying out laminated battery, there is the device that patent documentation 1 is recorded.
Fig. 9 is the schematic diagram that the inspection method that the radioactive rays to conventional laminated battery are had an X-rayed represents. As shown in Figure 9, first, radioactive rays are radiated in the AA direction along the long limit of the positive plate 11 of battery 1, detects transmission picture at X-ray detector 5. By this radioactive rays transmission picture is carried out image procossing, judge that whether the positive plate 11 in the direction along short limit is suitable with the position of negative plate 12 by every layer. Next, radioactive rays are radiated in the BB direction along the short limit of the positive plate 11 of battery 1, equally, judge that whether the positive plate 11 in the direction along long limit is suitable with the position of negative plate 12 by every layer.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2004-22206 publication
In recent years, the lithium ion polymer battery of stack has the trend of high capacity. Pass through high capacity, the size of battery lead plate is large-scale to be turned to such as while be 10cm to 30cm, the slim such as 0.15mm that turns to of the thickness of the layer formed by positive plate and this group of negative plate, and it (was 5cm that the number of plies is also increased to such as 50 in the past, 0.3mm, about 10 layers).
For this reason, carried out as in the past along battery lead plate the perspective in direction time, due to elongated on one side, the transmission picture that therefore there is battery lead plate overlaps and becomes not know thus cannot carry out the problem that checks.
Summary of the invention
The present invention makes in view of above-mentioned problem, its object is to, it is provided that even the battery of the stack of heavy body also can check the battery check device of the position skew of battery lead plate.
In order to solve the above problems, the purport of the invention that technical scheme 1 is recorded is, it it is a kind of battery check device, the position skew of the described battery lead plate of the battery of the battery lead plate of multiple tetragons with form layers is checked, described battery check device is characterised in that to have: radiation source; Positioning unit, so that described battery lead plate determines the position of described battery along the mode of the optical axis of the radiation beams radiated from described radiation source; Mobile unit, makes described battery move along the stacked direction of described battery lead plate; Radiation detector, detects the described radiation beams after battery described in transmission and exports as transmission picture; Photography control portion, for by the described battery behind described positioning unit location, control described mobile unit and described radiation detector, described battery is moved in the stacking direction, and obtains multiple transmission pictures that the radiation beams after transmission on the direction of described battery lead plate along described optical axis detects and obtain respectively in the position of multiple movement; And Images uniting portion, the extraction transmission picture making to extract the region of mutually identical regulation respectively for acquired described multiple transmission pictures and obtain is added after offsetting from each other the skew amount corresponding with the position of described movement, thus carries out synthesis process and obtain composograph.
In order to solve the above problems, the purport of the invention that technical scheme 2 is recorded is, in described Images uniting portion, is added after the described skew amount that the mobile amount of the described battery that skew causes with described movement on transmission picture is equal.
In order to solve the above problems, the purport of invention that technical scheme 3 is recorded is to have check processing portion, and this check processing portion offsets according to the mutual position that the composograph obtained by described Images uniting portion detects described battery lead plate and judges good no.
In order to solve the above problems, the purport of the invention that technical scheme 4 is recorded is, having condition configuration part, this condition configuration part is specified for the position on the transmission picture photographed by the battery behind described positioning unit location by being received in, and sets the region of described regulation.
Invention effect
According to the present invention, even the battery of the stack of heavy body also can check the position skew of battery lead plate.
Accompanying drawing explanation
Fig. 1 is the pie graph of the battery check device of the first enforcement mode of the present invention.
Fig. 2 is the schematic diagram that the structure to battery 1 represents.
Fig. 3 is the schema of the synthesis condition setting before the synthesis involved by the first enforcement mode processes.
Fig. 4 is the schematic diagram transmission picture involved by the first enforcement mode and ROI represented.
Fig. 5 is the schematic diagram position relation of the ROI on the transmission picture involved by the first enforcement mode and battery represented.
Fig. 6 is the schematic diagram camera positions relation involved by the first enforcement mode represented.
Fig. 7 is the photography involved by the first enforcement mode and the schema of synthesis process.
Fig. 8 is the schematic diagram composograph involved by the first enforcement mode and extraction transmission picture represented.
Fig. 9 is the schematic diagram that the inspection method that the radioactive rays to conventional laminated battery are had an X-rayed represents.
Figure 10 is the schematic diagram that the inspection method to winding (jellyroll) the formula battery involved by variation 8 represents.
Nomenclature
1 battery
2 X-ray tubes
3 X-ray beams
4 locating mechanisms, 4a keeps frame, 4b posture changing mechanism, and 4c xyz moves mechanism
5 X-ray detectors, 5a detector input side
6 data processing portions, 6a display portion, 6b input portion, 6c condition configuration part, 6d photographs control portion, 6e Images uniting portion, 6f check processing portion
7 mechanism controls portions
F x-ray focus, L optical axis
11 positive plates, 11a positive plate first rim portion, 11b positive plate the 2nd rim portion
12 negative plates, 12a negative plate first rim portion, 12b negative plate the 2nd rim portion
13 housings
14 gel electrolytic solution
15 positive wires
16 negative wires
Embodiment
Hereinafter, with reference to accompanying drawing, embodiments of the present invention are described.
(formation of the first enforcement mode)
Fig. 1 is the pie graph of the battery check device of the first enforcement mode of the present invention.
Battery check device is the device of the position skew of the battery lead plate checking battery 1, comprising: X-ray tube (radiation source) 2; Locating mechanism (positioning unit and mobile unit) 4, locates battery 1 among the X-ray beam (radiation beams) 3 being detected after radiating from X-ray tube 2; X-ray detector (radiation detector) 5, detects the X-ray beam 3 after transmission battery 1 and exports as transmission picture (transmission data); Data processing portion (Images uniting portion, check processing portion and condition configuration part) 6, after to the acquirement synthesis process of transmission picture, the position of detecting electrode plate offsets and judges good no; And mechanism controls portion (photography control portion) 7, with the instruction control locating mechanism from data processing portion.
In addition, have as other formation X-ray tube 2 is supplied high-voltage high-pressure generator, the X-ray controller of control tube voltage tube current, conveyance battery 1 and join (corresponding Japanese: The Ru of giving and accepting) to the battery conveyance mechanism of locating mechanism 4, will be judged to that eliminating mechanism that bad cell row is removed, X-ray collimation instrument, X-ray are cut off case etc., but omitted in FIG.
Locating mechanism 4 comprises: the xyz keep maintenance frame (positioning unit) 4a of battery 1, posture changing mechanism (positioning unit) 4b changing the posture keeping frame 4a, moving when making the posture of maintenance frame 4a remain unchanged along the mobile axle in orthogonal 3 directions moves mechanism's (mobile unit) 4c. Gesture distortion mechanism 4b is the mechanism that maintenance frame 4a is rotated relative to Z-axis (z-axis).
The z that xyz moves mechanism 4c moves axle (lifting axle) and intersects vertically with X-ray beam 3. Precisely, z moves axle is vertical direction, the direction (x-axis) of the central authorities with the X-ray beam 3 being detected in the wire harness radiated and X-ray optical axis L.
As X-ray tube 2, the such as divergence point of use X-ray beam 3 and the size of x-ray focus F are the Watt microfocus x-ray tube of about 1 μm.
X-ray detector 5 is with the resolving power detection X-ray of two dimension, and this X-ray detector 5 such as comprises: X-ray picture is converted to the X-ray II (image enhaucament pipe) of visible ray picture, this visible ray picture of photographing also exports the shooting pick up camera of the transmission picture as numerical data and the detector control portion etc. of control X-ray II and shooting pick up camera.
The instruction control locating mechanism 4 of mechanism controls portion 7 from data processing portion 6, and not shown battery is transported mechanism, for by being judged to that the eliminating mechanism that bad cell row is removed controls, in addition the state of these mechanisms being sent to data processing portion 6.
Data processing portion 6 is such as common computer, comprises the input portion 6b etc. such as CPU, storer, interface, display portion 6a, keyboard, mouse.
Data processing portion 6 sends instruction to mechanism controls portion 7, control locating mechanism 4.
In addition, X-ray detector 5 is sent photography signal and X-ray detector 5 is detected by data processing portion 6, collects and stores the transmission data from X-ray detector 5, and transmission data is shown in display portion 6a.
Further, data processing portion 6 sends X-ray, x-ray bombardment signal to not shown X-ray control unit.
Data processing portion 6 possesses condition configuration part 6c (receiving unit) of the setting accepting ROI (RegionofInterest) (region of regulation) on transmission picture, for the photography control portion 6d of serial photograph, the ROI section of the transmission data obtained by serial photograph synthesizes and obtains the Images uniting portion 6e of image, and check processing portion 6f etc., play the functional block of function by CPU after being used as reading in software, this check processing portion 6f performs position offset detection and the judgement of battery lead plate, good no judgement is carried out by each battery 1, at the eliminating signal for sending defective products when defective products to mechanism controls portion 7 as result of determination.
Fig. 2 is the schematic diagram that the structure to battery 1 represents. Fig. 2 (a) is vertical view, and Fig. 2 (b) is sectional view, and Fig. 2 (c) is the partial enlargement figure of Fig. 2 (b).
The battery 1 of stack is such as lithium ion polymer battery, as battery lead plate alternately overlapping angle be right angle tetragon and for about 100 × 200mm each other for same shape positive plate 11 and than this positive plate 11 greatly count mm each other be same shape negative plate 12, the thickness of the layer that positive plate 11 and this group of negative plate 12 are formed is about 0.2mm, overlap about 30 layers, entirety is the thickness of about 6mm.
The dividing plate having thinner resin-made between positive plate 11 and negative plate 12, but omitted in the drawings.
The entirety of the battery lead plate general name of negative plate 12 (positive plate 11 with) 11,12, is incorporated in the housing 13 formed with the laminated film of aluminium and polypropylene multi-layer, is filled with gel electrolytic solution 14 in the gap of battery lead plate. Being connected with positive wire 15 on each positive plate 11, positive wire 15 is bundled into 1 and is fetched to outside, each negative plate 12 is connected with negative wire 16 equally, and is fetched to outside equally.
In the first embodiment, for the part comprising respective the first limit (long limit) this two side of 11a, 12a of the battery lead plate 11,12 forming battery 1, photograph out at the multiple transmission pictures on the direction on this limit, the radiation beams after transmission detected and obtain, make composograph. Further, for the part comprising respective the 2nd limit (short limit) this two side of 11b, 12b of battery lead plate 11,12, photograph out at the multiple transmission pictures on the direction on this limit, the radiation beams after transmission detected and obtain, make composograph. Then, according to composograph, check the position skew in the direction along each limit between the battery lead plate 11,12 of each layer.
(effect of the first enforcement mode)
With reference to Fig. 3 to Fig. 8, effect is described.
First enforcement mode be
{ battery lead plate size separately is accurate, it is possible to ignore error },
{ skew is only parallel offset }
Prerequisite under detect between multiple battery lead plate 11,12 relative position skew.
The synthesis condition setting > of < first rim portion
At first, as described below, setting, the photographs synthesis of Images uniting condition carried out for the part of two sides comprising first limit 11a, 12a, judge.
First, before Images uniting processes, carry out the setting of Images uniting condition. Fig. 3 is the schema of Images uniting condition setting.
In step S1, battery 1 is placed in and keeps frame 4a by operator.
With reference to Fig. 1, locating mechanism keeps frame 4a to keep flat battery 1 along horizontal plane (x/y plane), position in the way of X-ray beam 3 (X-ray optical axis L) by the face of battery lead plate 11,12, and maintenance frame 4a is rotated in horizontal plane, positions in the way of X-ray beam 3 (X-ray optical axis L) by first limit 11a, 12a of battery lead plate 11,12.
Operator carries out the operation input of xyz mechanism 4c, makes the part of two sides comprising first limit 11a, 12a of battery 1 take in the central authorities of transmission as the visual field. Further, when inputting photography instruction from input portion 6b, data processing portion 6 obtains the output of X-ray detector 5, the transmission picture of storage battery 1, and is shown in display portion 6a.
In step S2, on transmission picture, carry out the setting in ROI (RegionofInterest) (region of regulation) as described below. Fig. 4 is the schematic diagram transmission picture involved by the first enforcement mode and ROI represented.
Corresponding to the input from input portion 6b undertaken by operator, condition configuration part 6c makes the ROI of rectangle and transmission picture show overlappingly. Operator sets size and the position of ROI, only to be taken in ROI at position few for the overlap of battery lead plate on transmission picture.
Namely, the layer of the battery lead plate of battery 1 is almost parallel, but X-ray beam 3 is expanded in the way of dispersing from x-ray focus F, therefore the nonoverlapping region of battery lead plate is defined, and this nonoverlapping region (being namely considered as the region that X-ray beam 3 is parallel with the face of battery lead plate 11,12) is set as ROI.
Condition configuration part 6c accepts this input and stores the top-left coordinates (m of ROIR, nR) and size (longitudinal pixel count M0, horizontal pixel count N0)。
In step S3, position is terminated in the starting position of setting photography. Fig. 5 is the schematic diagram position relation of the ROI on transmission picture and battery represented. Fig. 6 is schematic diagram camera positions relation represented. Operator is when input portion 6b inputs the display instruction of dynamic image, and data processing portion 6 obtains the transmission picture exported by X-ray detector 5 and carries out dynamic image display at display portion 6a. The ROI that overlapping display has set on this dynamic image. Operator while input at input portion 6b by observing this dynamic image, thus makes battery 1 and keeps rising or declining together with frame 4a. Now, on the picture of the transmission picture shown at dynamic image, ROI position is constant, but battery 1 moves up and down. Operator carries out specifying input at input portion 6c, thus the z location that the upper end of battery 1 compared with the lower end of ROI becomes lower section on transmission picture is set as starting position ZS, the z location that the lower end of battery 1 compared with the upper end of ROI becomes top is set as terminating position ZE(with reference to Fig. 5 (a)). Condition configuration part 6c accepts this input, and stores starting position ZS, terminate position ZE。
Fig. 5 (a) is to making battery 1 from starting position ZSMove to and terminate position ZETime transmission picture on battery 1 represent relative to the movement of ROI. ROI on transmission picture on the contrary is represented by Fig. 5 (b) relative to the relative movement of battery.
In step S4, it is ensured that the memory area of composograph. For the size N of ROI0×M0It is N that the size of the memory area protected is set to horizontal pixel count0, longitudinal pixel count is MC,
MC=M0+MR···(1)。
At this, MRIt is by from the starting position Z of battery 1STo terminating position ZEMobile amount be projected on detection faces 5a and obtain as the pixel count on transmission picture, be use formula
MR=Int{ (| ZE―ZS|·FDD)÷(dpm·FOD)}+1(2)
Calculate. At this, Int calculates removing below radix point as integer, and dpm is z direction 1 Pixel Dimensions on detection faces 5a, is constant. FOD (FocustoObjectDistance) is the distance from x-ray focus F to battery, and FDD (FocustoDetectorDistance) is the distance from x-ray focus F to detection faces 5a (with reference to Fig. 6).
The photography of < first rim portion and synthesis >
Next, with reference to Fig. 7, the effect of photography and synthesis process is described. Fig. 7 is the photography of the first enforcement mode and the schema of synthesis process.
In step S5, after operator inputs photography instruction from input portion 6b, the movement in z direction is controlled by photography control portion 6d when keeping the posture of (when setting from synthesis condition) battery 1 constant, makes battery 1 from starting position ZSTo terminating position ZEMove in the z-direction, and repeatedly carry out the acquirement of transmission picture in multiple mobile position. Usually, waiting the mobile position photography transmission picture at interval, but the interval such as may not be. Now, if the sum of the transmission picture obtained is K. In addition, obtain transmission as time, data processing portion 6 receives from mechanism controls portion 7 and camera positions Z (k) of kth (k=0～K-1) transmission as the respective z direction of P, kth transmission is stored in the lump as P and camera positions Z (k).
Next, for each k, implementation step S6 carries out synthesis process to step S8.
In step S6, for whole n, m (n=0～N0-1, m=0～M0-1) in ROI, pass through formula
PR(n, m)=P (n+nR, m+mR)···(3)
Extract transmission picture (the extracting transmission picture) P in ROI portion as P from kth transmissionR. That is, for acquired multiple transmission pictures, extract the region (ROI) of regulation identical mutually unrelatedly with k.
At this, each layer of the battery lead plate 11,12 of multilayer is parallel, even if moving in the stacking direction, parallel state also with mobile before not change, whole k), it is possible to (extract the few region of the overlap of battery lead plate as ROI for whole transmission picture.
In step S7, transmission is extracted as P for kthR, use formula
Δ m (k)=(Z (k)-ZS)·FDD÷dpm·FOD(4)
According to camera positions Z (k), calculate the offset Δ m (k) (pixel unit) on composograph storer. That is, the offset Δ m (k) calculated by formula (4), with by with starting position ZSFor battery the moving on transmission picture of the mobile generation of starting point is measured equal.
In step S8, make extraction transmission as PRRelative to composograph Q shifted by delta m (k) that ensure that storer in step s 4 which and be added. Fig. 8 is schematic diagram composograph and extraction transmission picture represented. Relatively Fig. 5 (a) and Fig. 8 is known, ROI on transmission picture is consistent with the skew amount (Fig. 8) on composograph relative to the mobile amount (Fig. 5 (a)) of battery, so composograph becomes the static transmission picture of battery 1.
At this, Δ m (k) is not integer, and institute uses an interpolation to carry out with additive as described below. First, integer portion a, the fractional part b of Δ m (k) are set to formula
A=Int (Δ m (k))
B=Δ m (k)-a (5)
Calculate.Use this, b, for extracting transmission whole (n, m) (n=0～N as PR0-1, m=0～M0-1), formula is passed through
Q (n, m+a)=Q (n, m+a)+(1-b) PR(n, m)
Q (n, m+a+1)=Q (n, m+a+1)+b PR(n, m) (6)
, it is added with composograph Q.
Now, formula is used
R (n, m+a)=R (n, m+a)+(1-b)
R (n, m+a+1)=R (n, m+a+1)+b (7)
Calculate the weight R of each pixel.
For the total K of the transmission picture obtained, repeatedly carry out step S6 to S8.
In step S9, use formula
Q ' (n, m)=Q ' (n, m) ÷ R (n, m) (8)
According to the data of composograph with storer Q, calculate the average image Q '.
By the flow process of above synthesis process, the z direction entirety for the first rim portion can obtain the composograph Q ' that there is not battery lead plate overlap.
The judgement > of < first rim portion
Next, composograph Q ' is shown in display portion 6a. Operator confirms composograph Q ' shown on display portion 6a, and inputs the good no judgement information relevant with the first rim portion at input portion 6b. Check processing portion 6f stores the good no judgement information relevant with the first rim portion inputted.
The synthesis condition setting > of < the 2nd rim portion
The photography of < the 2nd rim portion and synthesis >
The judgement > of < the 2nd rim portion
Next, orientate two rim portion orthogonal with the first limit of battery lead plate as X-ray beam 3 (X-ray optical axis L) along transmission on the direction on this limit, about the 2nd rim portion, carry out and condition same above setting, photography, synthesis and judgement.
< synthetic determination >
Next, check processing portion 6f confirms the good no judgement information relevant with the first rim portion stored by " judgement of the first rim portion " and the good no judgement information relevant with the 2nd rim portion stored by " judgement of the 2nd rim portion ", when being judged to that wherein any one is bad, the eliminating signal that mechanism controls portion 7 sends defective products is as result of determination. Further, battery 1 is got rid of by mechanism controls portion 7 by eliminating mechanism.
(effect of the first enforcement mode)
According to the first enforcement mode, battery 1 is made to move along the stacked direction of battery lead plate and the edge of battery lead plate carries out in the direction along edge transmission picture photography, only use region (ROI) composograph of the regulation that electrode does not overlap for the multiple transmission pictures photographed and obtain the transmission picture of the entirety of stacked direction, it is possible to relative to the rim portion of battery lead plate whole layer obtain battery lead plate do not overlap clearly along the transmission picture on limit, thus, even if battery lead plate greatly and is thin layer in the battery of the stack of heavy body, also the position that can detect the battery lead plate of every layer offsets and carries out good no judgement.
(distortion of the first enforcement mode)
In addition, the present invention is not limited to above-mentioned enforcement mode, implements after can carrying out various distortion in the scope not departing from its purport.
(variation 1)
In the first embodiment, at the first rim portion and the 2nd rim portion, carry out synthesis condition setting respectively, but can also omit " the synthesis condition setting of the 2nd rim portion ", and use the condition obtained by " the synthesis condition setting of the first rim portion ".
The enough little situation of the inclination in the battery lead plate face when the length on such as long limit and short limit less changes and make maintenance frame 4a have rotated is inferior can adopt which.
In addition, in the first embodiment, whenever inspection, all carry out synthesis condition setting, it may also be, for a kind of battery, initial 1 is carried out " the synthesis condition setting of the first rim portion " and " the synthesis condition setting of the 2nd rim portion ", later battery is then omitted, it may also be useful to what store in advance only carries out photographing and synthesizing for each condition of initial 1.In a kind of battery, battery lead plate 11,12, the inequality of the shape of housing 13 etc. less and the situation being placed in the inequality of the heeling condition in battery lead plate face when keeping frame 4a enough little inferior, it is possible to adopt which.
(variation 2)
In the first embodiment, make battery rise and photograph, but may not be ascent direction.
Such as, the z location lower end of the battery compared with the upper end of ROI 1 on transmission picture becoming top is set as starting position ZS, the z location that the upper end of battery 1 compared with the lower end of ROI on transmission picture becomes lower section is set as terminating position ZE. That is, xyz control portion 4c photographs along the continuous print transmission picture of descending direction movement in z-axis.
Offset Δ m (k) now, uses formula
Δ m (k)=MC-M0-1+ (Z (k)-ZS)·FDD÷dpm·FOD(9)
Calculate.
In addition, it is also possible to according to starting position ZSWith end position ZEMagnitude relationship, judge the z-axis travel direction of xyz control portion 4c, and adopt suitable offset Δ m (k).
(variation 3)
In the first embodiment, size by the storer Q of composograph is set to (MC×N0), but the M of the upper side and lower side0Row amount is the region do not photographed by battery 1, it is possible to save this part, the size of storer Q is set to ((MC-2 M0)×N0)。
(variation 4)
In the first embodiment, starting position ZSWith end position ZECan also set such as under type. Can also by transmission picture compared with the upper end of ROI the upper end of battery 1 become lower section (or the upper end of battery 1 enters in ROI) z location be set as ZS, the z location that the lower end of battery 1 compared with the lower end of ROI becomes top (or the upper end of battery 1 enters in ROI) is set as ZE. On the basis of setting like this, in bottom, have a little noise and increase, but from the upper end (upper strata) of battery to lower end (lower floor), it is possible to obtain having taken in the composograph of whole layer.
(variation 5)
In the first embodiment, carry out interpolation calculating when transmission being added with composograph Q as P, but Δ m (k) can also be rounded up and obtain skew amount, and do not carry out interpolation calculating.
(variation 6)
In the first embodiment, it is also possible to interval photography Δ Z is set to
Δ Z=dpm × FOD ÷ FDD I (10),
In the z-direction from starting position ZSStart to terminate position Z up to exceedingETill, by each interval photography Δ Z photography transmission picture. At this, I is natural integer. In the case, as synthesis process, add up as long as offseting I amount of pixels. In the case, that is, offset Δ m (k) is
Δ m (k)=k I=(11),
Δ m (k) is integer, so not needing interpolation to calculate.
And then, as I, it is also possible to adopt the line number M of ROI0. In the case, the offset Δ m (k) of synthesis process is M0Integral multiple, that is,
Δ m (k)=k M0(12)。
Synthesis process in the case, is the process (tiling (tiling)) arranging in the way of being paved with and extracting transmission picture, is simple process.
(variation 7)
In the first embodiment, photograph in the direction on the one side along battery lead plate, but also can be applied to the inclination perspective (in the direction along battery lead plate face, the perspective in the direction that any one face in 2 faces intersected in corner all tilts) in battery corner.
For the inspection method employing perspective, there is Japanese Unexamined Patent Publication 2011-39014 publication.
(variation 8)
In the first embodiment, using there is the battery lead plate of multiple tetragons of form layers battery as photography target, but in the battery (spirally wound) of the structure having carried out reeling together with dividing plate by positive/negative plate and become flat pattern, it is conceived to the subject area of rectangle as shown in Figure 10, thus it is considered as the battery lead plate of multiple tetragons of form layers, thus also can be applied to coiled battery.
Claims (4)
1. a battery check device, checks the position skew of the described battery lead plate of the battery of the battery lead plate of multiple tetragons with form layers, and described battery check device is characterised in that to have:
Radiation source;
Positioning unit, so that described battery lead plate determines the position of described battery along the mode of the optical axis of the radiation beams radiated from described radiation source;
Mobile unit, makes described battery move along the stacked direction of described battery lead plate;
Radiation detector, detects the described radiation beams after battery described in transmission and exports as transmission picture;
Photography control portion, for by the described battery behind described positioning unit location, control described mobile unit and described radiation detector, described battery is moved in the stacking direction, and obtains multiple transmission pictures that the radiation beams after transmission on the direction of described battery lead plate along described optical axis detects and obtain respectively in the position of multiple movement; And
Images uniting portion, the extraction transmission picture making to extract the region of mutually identical regulation respectively for acquired described multiple transmission pictures and obtain is added after offsetting from each other the skew amount corresponding with the position of described movement, thus carries out synthesis process and obtain composograph.
2. battery check device as claimed in claim 1,
It is added after the described skew amount that the mobile amount of the described battery that the skew of described Images uniting portion causes with described movement on transmission picture is equal.
3. battery check device as claimed in claim 1 or 2,
Having check processing portion, this check processing portion offsets according to the mutual position that the composograph obtained by described Images uniting portion detects described battery lead plate and judges good no.
4. battery check device as described in arbitrary item of claims 1 to 3,
Having condition configuration part, this condition configuration part is specified for the position on the transmission picture photographed by the battery behind described positioning unit location by being received in, and sets the region of described regulation.
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| JP2014257989A JP6473924B2 (en) | 2014-12-03 | 2014-12-03 | Battery inspection device |
| JP2014-257989 | 2014-12-03 |
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Also Published As
| Publication number | Publication date |
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| KR20160067024A (en) | 2016-06-13 |
| KR101699809B1 (en) | 2017-01-25 |
| JP6473924B2 (en) | 2019-02-27 |
| JP2016109654A (en) | 2016-06-20 |
| CN105674920B (en) | 2018-12-25 |
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