CN201331571Y - Intelligent test instrument and test clamp for internal resistance of storage battery - Google Patents
Intelligent test instrument and test clamp for internal resistance of storage battery Download PDFInfo
- Publication number
- CN201331571Y CN201331571Y CNU2008201468019U CN200820146801U CN201331571Y CN 201331571 Y CN201331571 Y CN 201331571Y CN U2008201468019 U CNU2008201468019 U CN U2008201468019U CN 200820146801 U CN200820146801 U CN 200820146801U CN 201331571 Y CN201331571 Y CN 201331571Y
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- test
- internal resistance
- intelligent
- storage battery
- discharge loop
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Abstract
The utility model relates to an intelligent test instrument and a test clamp for the internal resistance of a storage battery. The intelligent test instrument and the test clamp are connected with at least one storage battery so as to measure the characteristics of the storage battery. The test instrument and the test clamp comprise a test instrument casing, a power supply, a display screen, and a circuit board provided with a functional circuit; the functional circuit comprises a discharge loop and a voltage detection circuit, and the voltage detection circuit is provided with a relay loop; and the input ends of the intelligent test instrument and a test clamp for the internal resistance of a storage battery are in reverse connection with a diode used for discharge loop protection. The intelligent test instrument for a storage battery can provide multiple protection, such as input pole reverse connection protection and the like, in the test process, and adopts a plurality of MOSes connected in parallel in the discharge loop, thereby reducing power consumption and improving reliability; and clamping pieces of the test clamp of a battery state intelligent analyzer are provided with a clamping tooth part with jagged clamping teeth and a clamping head part with a smooth surface, so as to be conveniently clamped to electrodes and reduce resistance, thereby reducing the resistance and increasing measuring accuracy.
Description
Technical field
The utility model relates to portable battery state verification equipment, relates in particular to the accumulator internal resistance intelligent tester and the testing clamp that are used to measure battery condition.
Background technology
Present many electronic equipments have become indispensable life aid in people's life, some of them equipment is because working particularity, needed work incessantly in one day 24 hours, so that reliable support service to be provided, for guaranteeing the continuity of this work, often need to dispose the reserve power supply, these back-up sources typically use chargeable battery, these chargeable batteries are when grid cut-off, devote oneself to work immediately, come to provide for electronic system the support of reserve, because the battery of reserve only just can come into operation when outage, the quality of its state often is difficult for detecting at ordinary times.If but realize just that when system cut-off the reserve battery performance is stable inadequately, and will certainly influence the stability of system works at once, cause the loss that is difficult to remedy, consequence is fearful completely.Banking system for example; financial sector; civil aviaton's command system or the like; the systemic breakdown that system cut-off caused of burst; loss of vital data etc.; it all is the consequence that the user is difficult to bear; in time employed backup power system state is understood; the current state of grasp system just seems extremely important; the state of accumulator and its internal resistance have much relations; in order to grasp the state of accumulator exactly; need measure exactly the internal resistance of accumulator; at present common battery condition tester is because defencive function is not enough; in measurement, burn measuring instrument easily; be not easy to test accurately and easily; in addition, the angle of the folder tooth of present internal resistance test device is often bigger, often is difficult to holding electrode exactly.
The utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of can have the maltilevel security safeguard procedures, the accumulator internal resistance intelligent tester and the testing clamp that are difficult for damaging in measurement.
Accumulator internal resistance intelligent tester of the present utility model and testing clamp; be used for being connected the characteristic of measuring this accumulator with at least one accumulator; this accumulator internal resistance intelligent tester comprises meter case, power supply, display screen, is provided with the circuit board of functional circuit; functional circuit comprises discharge loop, voltage detecting circuit; voltage detecting circuit has relay circuit, and this accumulator internal resistance intelligent tester input end reversal connection is useful on the diode of discharge loop protection.
The input end of this battery status intelligent analytical instrument is provided with voltage detecting circuit, this voltage detecting circuit includes voltage comparator, resistance, devices such as triode are formed, input voltage is divided into two-way, compare with reference voltage through behind the voltage attenuation, whether can obtain input voltage surpasses the upper limit or is lower than lower limit, when surpassing the upper limit or be lower than down, voltage prescribes a time limit, the two-way comparer is exported high level respectively, carry out the logic NOT computing by triode then, and then directly carry out and computing, like this, as long as voltage surpasses the upper limit or is lower than lower limit, circuit output is low level, does not promptly open relay, thereby guarantee to have only when input voltage is between the bound just adhesive of relay.
For preventing that use test folder from carrying out the battery touching or contact that relay daps under the situation such as unreliable, shake, thereby might cause damage to this tester.When relay being carried out adhesive control, use electric capacity to delay time, simultaneously the charging and discharging circuit of electric capacity is used resistance and diode parallel connection, thereby reach the time-delay adhesive, the effect of instantaneous disconnection.
Use a plurality of metal-oxide-semiconductor parallel connections in the discharge loop of this battery status intelligent analytical instrument.
This battery status intelligent analytical instrument also includes the testing clamp that is used to test, this testing clamp includes intermediate plate, lock-screw, rotating shaft, insulation caliper and elastic body, this intermediate plate has folder tooth portion and chuck portion, this folder tooth portion is provided with jagged folder tooth, and this chuck portion clip surface is smooth and with folder tooth portion surface the angle of one one-tenth obtuse angle angle is arranged.
Beneficial effect: accumulator internal resistance intelligent tester of the present utility model and testing clamp; because be provided with multiple safeguard measure; therefore input utmost point reverse connecting protection can be provided; the input of test specification voltage; high voltage protection; shutdown protection etc.; discharge loop adopts a plurality of MOS parallel connections; can reduce power consumption greatly; improve reliability simultaneously; and be used for the testing clamp of this accumulator internal resistance intelligent tester; then owing to have the chuck portion that intermediate plate being provided with has the folder tooth portion of broached-tooth design and have shiny surface; therefore fashionable with the electrode holder of accumulator; can use the broached-tooth design of folder tooth portion to go out the more very much not oxide of easy conductive of resistance that electrode adheres to outward earlier; use then and have the chuck portion clamping electrode of shiny surface to avoid producing electric spark; improve the effect of collet segment clamping, improve the accuracy of test.
Description of drawings
Fig. 1, be accumulator internal resistance intelligent tester schematic perspective view;
Fig. 2, be the discharge major loop of accumulator internal resistance intelligent tester;
Fig. 3, be that input voltage detects and control relay circuit figure;
Fig. 4, be discharge current output circuit figure;
Fig. 5, be the synoptic diagram of the utility model accumulator internal resistance intelligent tester used test pincers;
Fig. 6, be the synoptic diagram of the utility model accumulator internal resistance intelligent tester testing clamp intermediate plate.
Embodiment
Accumulator internal resistance intelligent tester of the present utility model and testing clamp; many defencive functions such as input utmost point reverse connecting protection, the input of test specification voltage, high voltage protection, shutdown protection are provided; in discharge loop, adopt the method for a plurality of MOS parallel connections; power consumption not only can be reduced greatly, also reliability can be improved simultaneously.
Now in conjunction with the accompanying drawings the course of work of accumulator internal resistance intelligent tester of the present utility model and testing clamp is set forth; please refer to shown in Figure 1; schematic perspective view for the accumulator internal resistance intelligent tester of present embodiment; accumulator internal resistance intelligent tester of the present utility model adopts the alternating current discharge method to survey voltage and resistance; be used for being connected the characteristic of measuring this accumulator with at least one accumulator; this accumulator internal resistance intelligent tester comprises meter case 100; power supply; display screen 2; be provided with the circuit board of functional circuit; functional circuit comprises discharge loop; voltage detecting circuit; voltage detecting circuit has relay circuit; for discharge loop is protected; this accumulator internal resistance intelligent tester input end reversal connection is useful on the diode of discharge loop protection; please refer to shown in Figure 2; in the present embodiment; be to adopt two C25P40F; when test clamping connection inverse time, the diode pair discharge loop is blocked, and discharge can not be carried out.
Please refer to Fig. 2 and shown in Figure 3, the input end of this battery status intelligent analytical instrument is provided with voltage detecting circuit, this voltage detecting circuit includes devices such as voltage comparator, resistance, triode and forms, input voltage is divided into two-way, compare with reference voltage through behind the voltage attenuation, can obtain input voltage and whether surpass the upper limit or be lower than lower limit.Prescribe a time limit when voltage surpasses the upper limit or is lower than down, the two-way comparer is exported high level respectively, carries out the logic NOT computing by triode then, and output is carried out and computing to two-way again.Like this, as long as voltage surpasses the upper limit or is lower than lower limit, circuit output is low level.Like this, just can not open relay.So just guarantee to have only when input voltage is between the bound, relay could adhesive.
For preventing that use test folder from carrying out the battery touching or contact that relay daps under the situation such as unreliable, shake, thereby might cause damage to this tester.When relay being carried out adhesive control, use electric capacity to delay time, simultaneously the charging and discharging circuit of electric capacity is used resistance and diode parallel connection, thereby reach the time-delay adhesive, the effect of instantaneous disconnection.
Adopt relay to isolate at present embodiment, specialized designs a voltage detecting circuit.When having only in voltage is in this Meter Test scope, relay is just closed.Otherwise relay is opened, and external voltage does not enter discharge loop.
Please refer to shown in Figure 3 again, the input end of this battery status intelligent analytical instrument is provided with voltage detecting circuit, use resistance and diode parallel connection that electric capacity is carried out charge or discharge in the relay circuit of this voltage detecting circuit, in order to prevent because test clip contact shake or touching make the relay status instability, specialized designs relay drive circuit.In this design, use resistance and diode parallel connection that electric capacity is carried out charge or discharge, utilize the one-way of diode, the duration of charging that makes electric capacity reaches relay time-delay adhesive greater than discharge time, opens immediately.Prevent from when test clip contact high voltage, to do, thereby damage is caused in the loop owing to mixing of test clip makes relay misoperation.，
Please refer to shown in Figure 4; use resistance and diode parallel connection that electric capacity is carried out charge or discharge in the discharge loop of this battery status intellectual analysis; in the present embodiment; discharge current is controlled by single-chip microcomputer; because single-chip microcomputer can't be exported negative voltage; so when battery not being discharged; by electronic switch the input of negative level as discharge current; make the driving voltage of metal-oxide-semiconductor be changed to negative voltage like this; the assurance metal-oxide-semiconductor is in off state reliably, is not implemented in when discharging also can effectively protect discharge loop.
Please refer to shown in Figure 2ly again, use a plurality of metal-oxide-semiconductor parallel connections in the discharge loop of this battery status intelligent analytical instrument, thereby reduce the power consumption of single metal-oxide-semiconductor effectively, increased the reliability of system.
Please refer to Fig. 5 and shown in Figure 6, this battery status intelligent analytical instrument also includes the testing clamp that is used to test, this testing clamp includes intermediate plate 1, lock-screw, rotating shaft, insulation caliper 4 and elastic body, this intermediate plate 1 has folder tooth portion 10 and chuck portion 11, this folder tooth portion 10 is provided with jagged folder tooth, and these chuck portion 11 clip surface are smooth and with folder tooth portion surface the angle of one one-tenth obtuse angle angle is arranged.
The shell of the internal resistance of cell tester of present embodiment adopts overall plastic plastic structure, adopt lithium battery power supply, and use 128*64 super large LCDs, in addition, for ease of and the communication apparatus of periphery between realize data transmission, also be provided with and realize data storage and transmission between USB (USB (universal serial bus)) interface 3 of standard and the external unit, can be transferred in the computing machine by USB detecting data easily, host computer and software by special use are handled the data of test, so that generate test report and printing, so that data are done further to analyze.
Claims (3)
1, a kind of accumulator internal resistance intelligent tester; be used for being connected the characteristic of measuring this accumulator with at least one accumulator; comprise meter case, power supply, display screen, be provided with the circuit board of functional circuit; functional circuit comprises discharge loop, voltage detecting circuit; voltage detecting circuit has relay circuit, it is characterized in that this accumulator internal resistance intelligent tester input end reversal connection is useful on the diode of discharge loop protection.
2, accumulator internal resistance intelligent tester as claimed in claim 1 is characterized in that, uses a plurality of metal-oxide-semiconductor parallel connections in the discharge loop of this battery status intelligent analytical instrument.
3, a kind of testing clamp that is used for the described accumulator internal resistance intelligent tester of claim 1, it is characterized in that, this testing clamp includes intermediate plate, lock-screw, rotating shaft, insulation caliper and elastic body, this intermediate plate has folder tooth portion and chuck portion, this folder tooth portion is provided with jagged folder tooth, and this chuck portion clip surface is smooth and with folder tooth portion surface the angle of one one-tenth obtuse angle angle is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201468019U CN201331571Y (en) | 2008-08-22 | 2008-08-22 | Intelligent test instrument and test clamp for internal resistance of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201468019U CN201331571Y (en) | 2008-08-22 | 2008-08-22 | Intelligent test instrument and test clamp for internal resistance of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331571Y true CN201331571Y (en) | 2009-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201468019U Expired - Fee Related CN201331571Y (en) | 2008-08-22 | 2008-08-22 | Intelligent test instrument and test clamp for internal resistance of storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201331571Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569140A (en) * | 2016-11-03 | 2017-04-19 | 东莞市哈维电子科技有限公司 | Battery detection device |
| CN106707186A (en) * | 2016-12-16 | 2017-05-24 | 国网福建省电力有限公司 | Battery panel internal resistance testing device for storage battery |
| CN108398653A (en) * | 2018-05-14 | 2018-08-14 | 浙江杭可科技股份有限公司 | Heavy DC inner walkway device |
-
2008
- 2008-08-22 CN CNU2008201468019U patent/CN201331571Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569140A (en) * | 2016-11-03 | 2017-04-19 | 东莞市哈维电子科技有限公司 | Battery detection device |
| CN106707186A (en) * | 2016-12-16 | 2017-05-24 | 国网福建省电力有限公司 | Battery panel internal resistance testing device for storage battery |
| CN108398653A (en) * | 2018-05-14 | 2018-08-14 | 浙江杭可科技股份有限公司 | Heavy DC inner walkway device |
| CN108398653B (en) * | 2018-05-14 | 2024-03-05 | 浙江杭可科技股份有限公司 | Heavy current DC internal resistance testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: PITE Tech. Inc. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |