CN205263279U - Battery short circuit testing device - Google Patents
Battery short circuit testing device Download PDFInfo
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- CN205263279U CN205263279U CN201620008210.XU CN201620008210U CN205263279U CN 205263279 U CN205263279 U CN 205263279U CN 201620008210 U CN201620008210 U CN 201620008210U CN 205263279 U CN205263279 U CN 205263279U
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- wire
- resistance
- short circuit
- testing device
- test
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Abstract
The utility model provides a battery short circuit testing device, including knife switch, resistance, first wire, second wire, knife switch includes first contact and second contact, first contact with a wiring end of resistance is established ties, another wiring end of resistance with the one end of first wire is connected, second contact with the one end of second wire is connected, the other end of first wire with the other end of second wire respectively with the positive negative electricity of battery is connected. The utility model discloses a battery short circuit testing device is through setting up resistance, subtract the length of having lacked the wire, and then has practiced thrift the material and reduced calorific capacity of wire in the experimentation, has improved the accuracy of test. Just the utility model discloses simple structure, convenient to use, and the test box is effectual has improved the factor of safety in the short -circuit test, has ensured tester's safety.
Description
Technical field
The utility model relates to a kind of battery short circuit testing device.
Background technology
Along with the extensive use of lithium ion battery, the security performance of lithium ion battery is subject to increasing passNote. Lithium ion battery needs, according to IEC62133 standard, battery is carried out to safety test before using, evenThe both positive and negative polarity short circuit of battery, and Standard resistance range between anode and cathode terminals is in 80 ± 20m Ω, according to it isNo on fire, blast, judges the security of battery.
At present, directly use wire by the both positive and negative polarity short circuit of battery, but because the resistance of wire is very little, forMeet Standard resistance range between anode and cathode terminals in 80 ± 20m Ω, cause wire between both positive and negative polarity veryLong. And because battery short circuit test belongs to discharge process, can distribute a large amount of heats, so can not letterSingle mode such as wire is tied up is located arrangement, therefore very side of the battery short circuit of prior art testJust.
Utility model content
The technical problems to be solved in the utility model is that the battery short circuit in order to overcome prior art is tested notDefect easily, provides a kind of battery short circuit testing device.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of battery short circuit testing device, its feature is, described battery short circuit testing device comprises plug-in stripSwitch, resistance, the first wire, the second wire;
Described knife switch comprises the first contact and the second contact, one of described the first contact and described resistanceIndividual terminals series connection, another terminals of described resistance are connected with one end of described the first wire, described inThe second contact is connected with one end of described the second wire, and the other end of described the first wire and described second is ledThe other end of line is electrically connected with the both positive and negative polarity of described battery respectively.
In this programme, battery short circuit testing device, by resistance is set, has shortened the length of wire, and thenSave material and reduced the caloric value of wire in experimentation, improved the accuracy of test. WeThe defect that case has avoided the short-circuit test wire of prior art to grow, makes the short-circuit test of battery simply, justJust.
Preferably, described testing arrangement also comprises test box, and described test box comprises casing and case lid;
Described knife switch and described resistance are arranged in described casing, and the sidewall of described casing is provided with logicalLine hole, the other end of the other end of described the first wire and described the second wire is drawn by described threading holeTo described casing;
The plug-in strip of described knife switch stretches out described test by the perforate on described casing or described case lidOutside case.
In experimentation, resistance may generate heat and even explode, and test box can effectively be avoided in test processDue to the resistance heating injury that tester is caused of even exploding.
Preferably, described knife switch comprises 5 passages, and each passage comprises described the first contact and instituteState the second contact;
In described casing, be provided with 5 resistance, each passage is corresponding with a resistance respectively;
A terminals series connection of each first contact and corresponding resistance, each second contact and one secondWire connects;
Another terminals of each resistance are connected with one end of one first wire;
The other end of the second wire of the other end of each the first wire and correspondence is all by described threading holeDraw outside described casing and be electrically connected with the both positive and negative polarity of a battery respectively.
In this programme, can carry out short-circuit test to 5 batteries simultaneously, improve testing efficiency.
Preferably, the sidewall of described casing is provided with 5 groups of threading holes, the other end of each the first wire andThe other end of the second corresponding wire leads to outside described casing by one group of threading hole.
Preferably, total resistance of described the first wire, described the second wire and described resistance is75mΩ-85mΩ。
Preferably, the resistance of described resistance is 71m Ω-72m Ω.
Preferably, described the first wire and described the second wire are 4mm copper core.
Preferably, the other end of the other end of described the first wire and described the second wire connects by banana headConnect device and be connected with described test clip, described test clip is used for connecting described battery, and the resistance of described test clipValue is less than 9m Ω. Banana head connector is convenient to the replacing of test clip, and test clip is convenient to the connection of battery.
Preferably, described test box is provided with safety lock, for locking described casing and described case lid. SurveyIn examination process, resistance can generate heat and even explode, and casing is separated with case lid, has the danger of pounding tester,Therefore safety lock has further ensured tester's safety.
Preferably, described test box is provided with handle. Handle is convenient to the carrying of test box.
Positive progressive effect of the present utility model is: battery short circuit testing device of the present utility model passes throughResistance is set, has shortened the length of wire, and then saved material and reduced wire in experimentationCaloric value, has improved the accuracy of test. And the utility model is simple in structure, easy to use, and testCase effectively raises the safety coefficient in short-circuit test, has ensured tester's safety.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the battery short circuit testing device of the utility model one preferred embodiment.
Fig. 2 is the application schematic diagram of the battery short circuit testing device of the utility model one preferred embodiment.
Detailed description of the invention
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Fig. 1-2 shows a kind of battery short circuit testing device, and battery short circuit testing device comprises knife switch1, resistance 2, the first wire 7, the second wire 8 and test box. Test box comprises casing 3 and case lid 4,Knife switch 1 and resistance 2 are all arranged in casing 3. The materials'use cold-rolled steel of the outer surface of test boxPlate is made, and the inner surface of casing 3 adopts insulated electro plank to carry out liner, and test box can effectively be avoided testIn process due to resistance 2 injury of even exploding tester being caused of generating heat. In the present embodiment, testThe length of case be respectively 50cm, 34cm, 14cm and, the sidewall of casing 3 is provided with threading holeOne end of 31, the first wires 7 and the second wire 8 can pass to casing 3 by threading hole 31.
Knife switch 1 and the quantity of resistance 2 and establishing in casing 3 in test box need to be describedPut mode, can arrange voluntarily according to the actual requirements. 1 and 1 resistance of 1 knife switch can be set2, form a road test circuit, now can only carry out short-circuit test to 1 battery. Concrete, plug-in stripSwitch 1 comprises terminals of the first contact 11 and 12, the first contacts 11, the second contact and resistance 221 series connection, another terminals 21 of resistance 2 are connected with one end of the first wire 7, the second contact 12Be connected with one end of the second wire 8. Knife switch 1, resistance 2, the first wire 7, the second wire 8The test circuit that series connection Hou mono-road circuit forms, its two ends are electrically connected with the both positive and negative polarity of battery 9, this electricityPond is test battery (hereinafter to be referred as battery), is also the other end and second wire 8 of the first wire 7The other end lead to outside casing 3 by threading hole 31, and be electrically connected with the both positive and negative polarity of battery 9 respectively.Certainly, in casing, multiple knife switches also can be set or a knife switch comprises multiple passages, and withThe resistance that knife switch quantity or number of channels are equal, forms multi-channel test circuit, and battery short circuit is surveyed like thisElectricity testing device can carry out short-circuit test to multiple batteries simultaneously.
In the present embodiment, as shown in Figure 1, knife switch 1 is positioned at the left side of casing 3 inside, and plug-in stripSwitch 1 comprises 5 passages, and each passage comprises the first contact 11 and the second contact 12. Knife switch1 right side is aligned in sequence with 5 resistance 2. In use, first with wire by resistance 2 and knife switch 1Respective channel connect, from left to right, the corresponding resistance 2 of the passage of each knife switch 1.Concrete, each passage comprises the first contact 11 and the second contact 12, each first contact 11 is with correspondingTerminals 21 of resistance 2 connect, each second contact 12 is connected with the second wire 8; EachAnother terminals 21 of resistance 2 are connected with one end of the first wire 7; Each the first wire 7 anotherThe other end of one end and corresponding the second wire 8 all by threading hole 31 draw casing 3 outer and respectively withThe both positive and negative polarity of battery 9 connects. It should be noted that, No. 5 test circuits are separate, and plug-in strip canTo cut off respectively or to connect corresponding test circuit.
In the present embodiment, the plug-in strip of knife switch 1 can stretch out by the perforate on casing 3 or case lid 4Outside test box, as shown in Figure 2, the plug-in strip of the present embodiment stretches out outside test box by the perforate on case lid 4,In order to prevent the generation of false touch at ordinary times, can transparent plastic box buckle closure 41 be set at tapping.
Before test experiments starts, connect knife switch 1, resistance 2, first according to above-mentioned connected modeWire 7, the second wire 8, and one end that the first wire 7 is not connected with the second wire 8 is by logical lineHole 31 leads to outside casing 3, now case lid 4 can be closed, and shuts the safety lock 5 on test box simultaneously,Fastened housing 3 and case lid 4. The space that in addition, battery 9 need be positioned over to independent safety is as in explosion-proof tank.Due to, the first wire 7 and the second wire 8 that now stretch out the threading hole 31 of test box have certainLength, therefore battery circuit testing arrangement can be placed on to distance test battery has certain safe distanceSuitable or need place. The test box of the battery circuit testing arrangement in the present embodiment is provided with handle 6,Make to carry test box more convenient. When meeting after test condition, can be by plug-in strip closure, start test.Test finishes, and plug-in strip is disconnected, and wire separates with battery, short circuit case can be removed.
The first wire 7 of No. 5 test circuits and the second wire 8 can be drawn by a threading hole 31,But wire can distribute heat in consideration test process, therefore in the present embodiment, first of every road test circuitThe other end of the second wire 8 of the other end of wire 7 and correspondence is drawn by 5 groups of threading holes 31 respectivelyTo casing 3, wherein every group of threading hole 31 can comprise 2 circular holes, and so each circular hole draws oneRoot the first wire 7 or the second wire 8.
In the present embodiment, the first wire 7, the second wire 8 are 75m Ω-85m Ω with total resistance of resistance 2.The wherein equal 71m Ω-72m of the resistance of resistance 2 Ω, that the first wire 7 and the second wire 8 use is 4mmCopper core, the resistance of its 1m is 1.5 ± 0.5m Ω. According to the demand of testing arrangement reality, the first wire7 and the outer partial-length of the second wire 8 outlet boxs be generally 1m-3m. The other end of the first wire 7 andThe other end of two wires 8 also can be connected with test clip by banana head connector, and test clip is for connectingBattery, wherein the resistance of test clip should be less than 9m Ω. Banana head connector is convenient to the replacing of test clip,Test clip is convenient to the connection of battery.
Although more than described detailed description of the invention of the present utility model, those skilled in the art shouldWork as understanding, these only illustrate, and protection domain of the present utility model is to be limit by appended claimsFixed. Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, canThese embodiments are made to various changes or modifications, but these changes and amendment all fall into the utility modelProtection domain.
Claims (10)
1. a battery short circuit testing device, is characterized in that, described battery short circuit testing device comprisesKnife switch, resistance, the first wire, the second wire;
Described knife switch comprises the first contact and the second contact, one of described the first contact and described resistanceIndividual terminals series connection, another terminals of described resistance are connected with one end of described the first wire, described inThe second contact is connected with one end of described the second wire, and the other end of described the first wire and described second is ledThe other end of line is electrically connected with the both positive and negative polarity of battery respectively.
2. battery short circuit testing device as claimed in claim 1, is characterized in that, described test dressPut and also comprise test box, described test box comprises casing and case lid;
Described knife switch and described resistance are arranged in described casing, and the sidewall of described casing is provided with logicalLine hole, the other end of the other end of described the first wire and described the second wire is drawn by described threading holeTo described casing;
The plug-in strip of described knife switch stretches out described test by the perforate on described casing or described case lidOutside case.
3. battery short circuit testing device as claimed in claim 2, is characterized in that, described plug-in strip is openedPass comprises 5 passages, and each passage comprises described the first contact and described the second contact;
In described casing, be provided with 5 resistance, each passage is corresponding with a resistance respectively;
A terminals series connection of each first contact and corresponding resistance, each second contact and one secondWire connects;
Another terminals of each resistance are connected with one end of one first wire;
The other end of the second wire of the other end of each the first wire and correspondence is all by described threading holeDraw outside described casing and be electrically connected with the both positive and negative polarity of a battery respectively.
4. battery short circuit testing device as claimed in claim 3, is characterized in that, described casingSidewall is provided with 5 groups of threading holes, the other end of the second wire of the other end of each the first wire and correspondenceLead to outside described casing by one group of threading hole.
5. battery short circuit testing device as claimed in claim 1, is characterized in that, described first leadsTotal resistance of line, described the second wire and described resistance is 75m Ω-85m Ω.
6. the battery short circuit testing device as described in claim 1 or 3, is characterized in that, described electricityThe resistance of resistance is 71m Ω-72m Ω.
7. battery short circuit testing device as claimed in claim 1, is characterized in that, described first leadsLine and described the second wire are 4mm copper core.
8. battery short circuit testing device as claimed in claim 1, is characterized in that, described first leadsThe other end of the other end of line and described the second wire is connected with test clip by banana head connector, described inTest clip is used for connecting described battery, and the resistance of described test clip is less than 9m Ω.
9. battery short circuit testing device as claimed in claim 2, is characterized in that, described test boxBe provided with safety lock, for locking described casing and described case lid.
10. battery short circuit testing device as claimed in claim 2, is characterized in that, described test boxBe provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008210.XU CN205263279U (en) | 2016-01-05 | 2016-01-05 | Battery short circuit testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008210.XU CN205263279U (en) | 2016-01-05 | 2016-01-05 | Battery short circuit testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205263279U true CN205263279U (en) | 2016-05-25 |
Family
ID=56004801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620008210.XU Active CN205263279U (en) | 2016-01-05 | 2016-01-05 | Battery short circuit testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205263279U (en) |
-
2016
- 2016-01-05 CN CN201620008210.XU patent/CN205263279U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |