CN101833071B - High-precision internal resistance and voltage tester for lithium ion battery - Google Patents
High-precision internal resistance and voltage tester for lithium ion battery Download PDFInfo
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- CN101833071B CN101833071B CN201010181896XA CN201010181896A CN101833071B CN 101833071 B CN101833071 B CN 101833071B CN 201010181896X A CN201010181896X A CN 201010181896XA CN 201010181896 A CN201010181896 A CN 201010181896A CN 101833071 B CN101833071 B CN 101833071B
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Abstract
The invention relates to a high-precision internal resistance and voltage tester for a lithium ion battery, which not only can eliminate measuring errors generated by manual operation, but also can greatly improve the production efficiency. The tester comprises a cabinet and a press module fixedly mounted on the cabinet, wherein the press module comprises a lower probe plate and a top plate which is arranged above the lower probe plate, a feeding rod is fixedly connected between the top plate and the lower probe plate and slides up and down to be connected with an upper probe plate and a tray plate, the upper probe plate is arranged above the tray plate, a probe-mounting plate is fixedly mounted below the upper probe plate, an upper probe is fixedly mounted below the probe-mounting plate, a probe-mounting plate is fixedly mounted on the lower probe plate, a lower probe is fixedly mounted on the probe-mounting plate and corresponds to the upper probe, an air cylinder is fixedly mounted between the top plate and the upper probe plate, a spring is fixedly mounted between the tray plate and the lower probe plate, and a retaining ring is fixedly connected with the feeding rod and arranged between the top plate and the upper probe plate.
Description
Technical field
The present invention relates to a kind of internal resistance of cell and voltage tester, relate in particular to internal resistance of a kind of high precision lithium ion battery and voltage tester.
Background technology
At present; Domestic a lot of lithium ion battery manufacturer is main with manually-operated mainly also to the test of column lithium ion battery internal resistance, and labor capacity is excessive for large-scale production, and production efficiency is lower; The measuring error that human factor produces is more, the internal resistance that can not accurately measure battery.
Summary of the invention
The purpose of this invention is to provide a kind of measuring error that manually-operated produces of both can having eliminated, can increase substantially the internal resistance of high precision lithium ion battery and the voltage tester of production efficiency again.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
Internal resistance of a kind of high precision lithium ion battery and voltage tester comprise rack, are installed with the press module on the rack; It is characterized in that: the press module includes top board and following probe card, and top board is positioned at probe card top down, is fixedly connected with feed rod between top board and the following probe card; Slide up and down on the feed rod and be connected with probe card and tray plate, last probe card is positioned at tray plate top, is installed with the probe installing plate below the last probe card; Be installed with probe below the probe installing plate; The following probe installing plate that is installed with above the probe card is installed with down probe above the probe installing plate, and following probe is corresponding with last probe; Be installed with cylinder between top board and the last probe card, be installed with spring between tray plate and the following probe card.
According to internal resistance of described a kind of high precision lithium ion battery and voltage tester, it is characterized in that: be fixedly connected with back-up ring on the said feed rod, back-up ring is between said top board and last probe card.
According to internal resistance of described a kind of high precision lithium ion battery and voltage tester; It is characterized in that: be installed with the cylinder stationary installation below the said upward probe card; The base of cylinder is fixedly mounted on below the top board, and the expansion link of cylinder is fixedly connected on above the cylinder stationary installation; The expansion link free end of cylinder is connected with the ejecting rod of cylinder head, is installed with adjustable limit for height piece cover above the tray plate, is placed with adjustable limit for height piece in the adjustable limit for height piece cover; The position of adjustable limit for height piece is corresponding up and down with the ejecting rod of cylinder head.
According to internal resistance of described a kind of high precision lithium ion battery and voltage tester, it is characterized in that: be installed with lower position block above the probe card under said; Be installed with spring spindle above the probe card under said, said spring housing is contained on the spring spindle.
According to internal resistance of described a kind of high precision lithium ion battery and voltage tester, it is characterized in that: said upward probe card and tray plate all are installed with linear bearing for four jiaos, and linear bearing is sleeved on the said feed rod, and linear bearing is connected for sliding up and down with feed rod.
According to internal resistance of described a kind of high precision lithium ion battery and voltage tester, it is characterized in that: be installed with the spacing card of pallet on the said tray plate, the xsect of the spacing card of pallet is " Z " or " T " word shape.
In conjunction with computer remote control, the present invention can carry out internal resistance and voltage measurement to battery automatically, has practiced thrift Measuring Time, and production efficiency improves, and meets very much the requirement of factory's large-scale production.The present invention uses the mechanical automation pneumatic control, and the error of having avoided human factor to produce makes measurement result more accurate.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of the present invention;
Fig. 2 is a left TV structure synoptic diagram of the present invention;
Fig. 3 is the structural representation of press module among the present invention;
Fig. 4 is the perspective view after the battery tray of combination the present invention use is put into battery;
Fig. 5 is a schematic block circuit diagram of the present invention.
In the accompanying drawing:
1, back-up ring; 2, the spacing card of pallet; 3, solenoid valve; 4, ejecting rod of cylinder head; 5, lower position block; 6, rain glass; 7, cylinder; 8, go up probe; 9, tested battery; 10, following probe; 11, press module; 12, top board; 13, go up probe card; 14, linear bearing; 15, tray plate; 16, feed rod; 17, following probe card; 18, probe installing plate; 19, cylinder stationary installation; 20, adjustable limit for height piece; 21, spring; 22, spring spindle; 23, adjustable limit for height piece cover; 24, pallet; 25, CPU; 26, button is selected circuit; 27, abnormal alarm circuit; 28, relay gating circuit; 29, battery probe card; 30, internal resistance and voltage tester table; 31, COM1; 32, host computer communication port; 33, host computer communicator.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further described:
Internal resistance of a kind of high precision lithium ion battery and voltage tester like Fig. 1, Fig. 2, shown in Figure 3, comprise rack; Be installed with press module 11 on the rack, press module 11 includes top board 12 and following probe card 17, and top board 12 is positioned at probe card 17 tops down; Be fixedly connected with feed rod 16 between top board 12 and the following probe card 17; Slide up and down on the feed rod 16 and be connected with probe card 13 and tray plate 15, last probe card 13 is positioned at tray plate 15 tops, is installed with probe installing plate 18 below the last probe card 13; Be installed with probe 8 below the probe installing plate 18; Be installed with probe installing plate 18 above the following probe card 17, be installed with down probe 10 above the probe installing plate 18, following probe 10 is corresponding with last probe 8; Be installed with cylinder 7 between top board 12 and the last probe card 13, be installed with spring 21 between tray plate 15 and the following probe card 17.Be fixedly connected with back-up ring 1 on the said feed rod 16, back-up ring 1 is between said top board 12 and last probe card 13.Be installed with cylinder stationary installation 19 below the said upward probe card 13, the base of cylinder 7 is fixedly mounted on below the top board 12, and the expansion link of cylinder 7 is fixedly connected on above the cylinder stationary installation 19; The expansion link free end of cylinder 7 is connected with ejecting rod of cylinder head 4, is installed with adjustable limit for height piece cover 23 above the tray plate 15, is placed with adjustable limit for height piece 20 in the adjustable limit for height piece cover 23; The position of adjustable limit for height piece 20 is corresponding about in the of 4 with the ejecting rod of cylinder head.Be installed with lower position block 5 above the probe card 17 under said; Be installed with spring spindle 22 above the probe card 17 under said, said spring 21 is sleeved on the spring spindle 22.The said probe card 13 of going up all is installed with linear bearing 14 for 15 4 jiaos with tray plate, and linear bearing 14 is sleeved on the said feed rod 16, and linear bearing 14 is connected for sliding up and down with feed rod 16.Be installed with the spacing card 2 of pallet on the said tray plate 15, the xsect of the spacing card 2 of pallet is " Z " or " T " word shape.
The present invention includes mechanical part and electric part.
Mechanical part is made up of the press module, and the press module comprises parts such as four laminates (both top board, last probe card, tray plate and following probe card), feed rod, linear bearing, probe installing plate, cylinder, cylinder stationary installation, ejecting rod of cylinder head, spring, spring spindle, limit for height piece, adjustable limit for height piece, adjustable limit for height piece cover, back-up ring, limit for height switch block, lower position block, the spacing card of pallet.Being shaped as of pressing plate is square, and the superiors in four laminates are top board, and the second layer is last probe card, and the 3rd layer is tray plate, and orlop is following probe card.
Four jiaos of places of top board all have the feed rod fixed orifice; Be installed with four feed rods in four feed rod fixed orifices respectively; The top of feed rod fixed orifice and feed rod is fixedly linked; Also have the cylinder fixed orifice on the top board, cylinder fixed hole position relative position, both sides on top board, the cylinder body of this cylinder fixed orifice and cylinder is fixedly connected.
Last probe card is fixedly connected with the probe installing plate towards the one side of following probe card direction; Below the probe installing plate probe is installed; Four jiaos of places of last probe card all have the linear bearing fixed orifice; Be fixedly connected with linear bearing respectively in these four linear bearing fixed orifices, four linear bearings are set on above-mentioned four feed rods and also slide up and down connection with it, and the both sides part that last probe card is relative is equipped with the cylinder stationary installation; This cylinder stationary installation is fixedly connected through the ejecting rod of cylinder head with the cylinder rod of cylinder, on the feed rod between top board and the last probe card, is fixedly connected with back-up ring; Tray plate is fixedly connected with microswitch fixed block and adjustable limit for height piece cover on the face of last probe card.
Be fixed with two microswitches on the microswitch fixed block, one of them microswitch is corresponding with pallet counnter attack groove, and adjustable limit for height piece is placed in the adjustable limit for height piece cover, and the center of adjustable limit for height piece, adjustable limit for height piece cover is on the center line of cylinder rod.
Four jiaos of places of tray plate all have the linear bearing fixed orifice, and these four linear bearing fixed orifice internal fixation are connected with four linear bearings, and four linear bearings are enclosed within respectively and also slide up and down connection on above-mentioned four feed rods with it.
Following probe card is fixedly connected with the probe installing plate on the face of last probe card; On the probe installing plate probe is installed down, the Si Jiaochu of following probe card has the feed rod fixed orifice, and four feed rod fixed orifices are fixedly connected with the lower end of above-mentioned four feed rods respectively; Be fixedly connected with N spring spindle on the following probe card; Be set with spring on the spring spindle, the logical elastic force of spring holds up tray plate, is fixedly connected with lower position block in the center line and the place that following probe card has a common boundary of cylinder rod.
Electric part of the present invention includes CPU, host computer communicator, internal resistance and voltage tester table, button is selected circuit, abnormal alarm circuit and relay gating circuit.Internal resistance selects circuit, abnormal alarm circuit and relay gating circuit to link to each other with CPU respectively with voltage tester table, button; The relay gating circuit links to each other with the battery probe card; CPU links to each other with host computer through host computer communicator and COM1, and internal resistance links to each other with host computer through COM1 with the voltage tester table.
Above-mentioned host computer communicator is 485 commentaries on classics, 232 serial communication converters, is 485 communication modes between CPU and host computer communicator, is 232 communication modes between host computer communicator and host computer.
Above-mentioned button selects circuit to comprise emergency stop switch, power switch, power light, press control button, manual conversion keys, position limited inching switch and working station indicator.When danger or emergency condition occurring, pressing the emergency stop switch that can cut off circuit, the protection person or device security links to each other with the 220V/50Hz alternating current; The power switch of control tester on/off links to each other with emergency stop switch; The power light whether indicating equipment switches on links to each other with power switch; Can realize high-low level in the circuit conversion, make CPU judge that through detecting the button current potential press control button of executing state, manual conversion keys link to each other with CPU; Can produce the high-low level signal, make CPU judge that through detecting current potential the press limit for height microswitch whether closure puts in place links to each other with CPU, whether normal working station indicator links to each other with CPU the indicating equipment state.
Above-mentioned abnormal alarm circuit comprises whether rain glass and 4 that whether normally produce high-low level according to air pressure put in place according to battery tray and produces the microswitch of high-low level; Rain glass links to each other with CPU, and 4 microswitches link to each other with CPU.
Above-mentioned relay gating circuit is made up of dpdt relay; Each battery testing point all has 2 relay controls; Whether the break-make control battery testing point of relay inserts internal resistance and voltage tester table; The break-make of relay is by central processing unit controls, and CPU can be accomplished all battery testing points in order and insert internal resistance and voltage tester table successively through the break-make of 2 relays of each battery testing point of programmed control.The relay gating circuit is made up of the relay circuit plate; Every wiring board is made up of relay array and the bus relay whether control battery testing point inserts CPU; The every corresponding battery testing of battery probe card is put a shared bus relay; Bus relay can effectively be eliminated interference, improves measuring accuracy.The relay gating circuit links to each other with CPU.
Above-mentioned internal resistance and voltage tester table adopt HOKI3560 type internal resistance and voltage table, adopt the internal resistance and the voltage that exchange four-wire system method test battery, and this table communicates through COM1 and host computer, and the data after will testing are transferred to host computer through COM1.
Above-mentioned CPU is a single-chip microcomputer, and in order to make circuit not only simply but also effective, said single-chip microcomputer uses 8 single-chip microcomputers of ATMEGA128L type.
The present invention is the equipment of a kind of lithium ion battery internal resistance and voltage synchronism detection, has the precision height, the characteristics fast, simple to operate, that automaticity is high test the speed.
Automaticity of the present invention is high, measures accurately, and measurement data can access at any time and check, for the subsequent production operation brings convenience; Adopt bus relay, can effectively eliminate interference, improved measuring accuracy; The host computer communicator is 485 communication serial ports, long transmission distance.
CPU of the present invention selects circuit, abnormal alarm circuit and relay gating circuit to link to each other with internal resistance with voltage tester table, button respectively; The relay gating circuit links to each other with the battery probe card; CPU links to each other with the host computer communicator; And link to each other with host computer by host computer communication port, internal resistance links to each other with host computer by COM1 with the voltage tester table.
Open button and select the power switch in the circuit to connect tester, open testing software and make tester and host computer (computer) keep communicating by letter normal.The abnormal alarm circuit comprises atmospheric pressure state testing circuit and the battery tray testing circuit that puts in place; The atmospheric pressure state testing circuit comprises a rain glass that can produce high-low level; Rain glass links to each other with CPU; When air pressure just often produces low level signal, when pressure abnormity, produce high level signal, CPU is judged the high-low level signal; If CPU will produce alerting signal during pressure abnormity, make button select the working station indicator in the circuit to be in blink states.
The battery tray that tested battery will be housed after definite air pressure is normal is put into the pallet stop means of press module; The pallet stop means is located the tray motion terminal point; Battery tray in the abnormal alarm circuit testing circuit that puts in place comprises 4 microswitches; 4 microswitches are fixed on the microswitch fixed block; The normally opened contact of 4 microswitches inserts high level, and the battery tray testing circuit that puts in place links to each other with CPU, and CPU judges through the current potential that detects 4 microswitches whether battery tray puts in place and whether adorn instead.When battery tray puts in place; The normally opened contact of 4 microswitches is closed; High level signal inserts CPU, representes that battery tray puts in place when CPU is judged 4 microswitches entirely for high level, otherwise the expression battery tray is not in place; CPU will produce alerting signal this moment, make button select the working station indicator in the circuit to be in blink states.
Manual conversion keys in definite battery tray puts back selection key selection circuit in place, when selecting manual mode, operation push-button selects the press in the circuit to control the button control electromagnetic valve; The valve of solenoid control cylinder interior makes the press module pressing or opens, when selecting automatic mode; Send instruction by testing software to CPU; The central processing unit controls solenoid valve, the valve of solenoid control cylinder interior makes the press module pressing or opens.
When cylinder rod travels forward; To go up probe card through the cylinder stationary installation and promote downwards, the probe on the last probe card through with pallet in battery contact and will go up probe card and promote downwards, and compression spring; Contact with adjustable limit for height piece on the tray plate up to the ejecting rod of cylinder head; The bottom surface of tray plate contacts with limit for height piece on being fixed on down probe card, and the positive and negative electrode of tested battery links to each other in making the probe installed on the upper and lower probe card and being placed on battery tray, and microswitch fixing on the limit for height switch block is closed; Produce high level; CPU judges that the press closure puts in place after receiving high level signal, and button is selected the working station indicator Chang Liang in the circuit, can begin test.
Utilize testing software to send the beginning test instruction to CPU; CPU drives the relay adhesive in the relay gating circuit according to internal processes; The contact that the electric current of tested battery and magnitude of voltage are connected after through the adhesive of relay gating circuit repeat circuit is sent to internal resistance and voltage tester table; Internal resistance and voltage tester table are transferred to the testing software in the host computer with correct internal resistance and magnitude of voltage through COM1 after treatment, and testing software handles preservation after receiving data; Accomplish continued and send test instruction, begin to test next tested battery to CPU.
After all tested battery testings finish; If what select is manual mode, can select the press control button in the circuit by operation push-button, CPU can be controlled the press module according to the current potential that press is controlled button and open; The probe of installing on the battery probe card this moment breaks away from the tested battery that is placed in the battery tray; Take out battery tray, put into the new battery tray that tested battery is housed, begin new test.If what select is automatic mode; After test finishes; CPU directly control press module is opened, and the probe of installing on the battery probe card this moment breaks away from the tested battery that is placed in the battery tray, takes out battery tray; Put into the new battery tray that tested battery is housed, begin new test.
Claims (6)
1. high precision lithium ion battery internal resistance and voltage tester comprise rack, are installed with press module (11) on the rack; It is characterized in that: press module (11) includes top board (12) and following probe card (17); Top board (12) is positioned at probe card (17) top down, is fixedly connected with feed rod (16) between top board (12) and the following probe card (17), slides up and down on the feed rod (16) and is connected with probe card (13) and tray plate (15); Last probe card (13) is positioned at tray plate (15) top; Be installed with probe installing plate a (18) below the last probe card (13), be installed with probe (8) below the probe installing plate a (18), be installed with probe installing plate b (18) above the following probe card (17); Be installed with down probe (10) above the probe installing plate b (18), following probe (10) is corresponding with last probe (8); Be installed with cylinder (7) between top board (12) and the last probe card (13), be installed with spring (21) between tray plate (15) and the following probe card (17).
2. a kind of high precision lithium ion battery according to claim 1 internal resistance and voltage tester is characterized in that: be fixedly connected with back-up ring (1) on the said feed rod (16), back-up ring (1) is positioned between said top board (12) and the last probe card (13).
3. a kind of high precision lithium ion battery according to claim 1 and 2 internal resistance and voltage tester; It is characterized in that: be installed with cylinder stationary installation (19) below the said upward probe card (13); The base of cylinder (7) is fixedly mounted on below the top board (12), and the expansion link of cylinder (7) is fixedly connected on above the cylinder stationary installation (19); The expansion link free end of cylinder (7) is connected with ejecting rod of cylinder head (4), is installed with adjustable limit for height piece cover (23) above the tray plate (15), is placed with adjustable limit for height piece (20) in the adjustable limit for height piece cover (23); The position of adjustable limit for height piece (20) is corresponding up and down with ejecting rod of cylinder head (4).
4. a kind of high precision lithium ion battery according to claim 3 internal resistance and voltage tester is characterized in that: be installed with lower position block (5) above the probe card (17) under said; Be installed with spring spindle (22) above the probe card (17) under said, said spring (21) is sleeved on the spring spindle (22).
5. a kind of high precision lithium ion battery according to claim 4 internal resistance and voltage tester; It is characterized in that: said upward probe card (13) and tray plate all are installed with linear bearing (14) for (15) four jiaos; Linear bearing (14) is sleeved on the said feed rod (16), and linear bearing (14) is connected for sliding up and down with feed rod (16).
6. a kind of high precision lithium ion battery according to claim 5 internal resistance and voltage tester is characterized in that: be installed with the spacing card of pallet (2) on the said tray plate (15), the xsect of the spacing card of pallet (2) is " Z " or " T " word shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010181896XA CN101833071B (en) | 2010-05-14 | 2010-05-14 | High-precision internal resistance and voltage tester for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010181896XA CN101833071B (en) | 2010-05-14 | 2010-05-14 | High-precision internal resistance and voltage tester for lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101833071A CN101833071A (en) | 2010-09-15 |
| CN101833071B true CN101833071B (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010181896XA Expired - Fee Related CN101833071B (en) | 2010-05-14 | 2010-05-14 | High-precision internal resistance and voltage tester for lithium ion battery |
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| CN (1) | CN101833071B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405426A (en) * | 2016-08-30 | 2017-02-15 | 王春阳 | Lithium cell detection two-board-structure press machine |
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| CN102353903B (en) * | 2011-06-16 | 2013-11-06 | 山东驰翔新能源科技有限公司 | Battery performance test device |
| CN102901860A (en) * | 2012-09-17 | 2013-01-30 | 江苏天鹏电源有限公司 | Automatic voltage detection device |
| CN103852675A (en) * | 2012-11-30 | 2014-06-11 | 达丰(上海)电脑有限公司 | On-line test fixture with pneumatic probes |
| CN103675406B (en) * | 2013-11-13 | 2016-04-20 | 河南超威电源有限公司 | Cell voltage detects screening plant and method automatically |
| CN104407299A (en) * | 2014-11-20 | 2015-03-11 | 合肥国轩高科动力能源股份公司 | Internal resistance voltage testing machine for battery |
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| CN105527578A (en) * | 2016-01-14 | 2016-04-27 | 广州蓝奇电子实业有限公司 | Battery detection control system |
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| JP2004101327A (en) * | 2002-09-09 | 2004-04-02 | Kataoka Seisakusho:Kk | Contact probe |
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| CN101833071A (en) | 2010-09-15 |
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