CN221239058U - Battery leakage detection circuit and battery leakage detection jig - Google Patents
Battery leakage detection circuit and battery leakage detection jig Download PDFInfo
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- CN221239058U CN221239058U CN202322646090.9U CN202322646090U CN221239058U CN 221239058 U CN221239058 U CN 221239058U CN 202322646090 U CN202322646090 U CN 202322646090U CN 221239058 U CN221239058 U CN 221239058U
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- 238000001514 detection method Methods 0.000 title claims abstract description 61
- 239000004744 fabric Substances 0.000 claims description 37
- 229910052744 lithium Inorganic materials 0.000 abstract description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 15
- 239000004020 conductor Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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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Abstract
The utility model relates to a battery leakage detection circuit and a battery leakage detection jig, wherein the battery leakage detection circuit comprises a first power supply battery BT1, a second power supply battery BT2, a third power supply battery BT3, a first buzzer, a second buzzer, a first resistor, a second resistor, a third resistor, a fourth resistor, a first conductive contact unit, a second conductive contact unit, a first LED lamp, a second LED lamp, an anode connecting end and a cathode connecting end; the battery leakage detection jig comprises a jig body and a detection circuit arranged on the jig body, wherein the detection circuit is the battery leakage detection circuit. The method avoids missing or false detection caused by the fact that the battery to be detected is not in good contact when detecting whether the conductive material on the surface of the packaged lithium battery to be detected is in short circuit with the anode and the cathode in the packaged lithium battery to be detected, ensures the reliability of detection and improves the detection efficiency; the whole jig has a simple structure.
Description
Technical Field
The utility model relates to the technical field of battery leakage, in particular to a battery leakage detection circuit and a battery leakage detection jig.
Background
Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. The chemical characteristics of lithium metal are very active, so that the processing, storage and use of lithium metal have very high requirements on environment.
However, with the development of science and technology, lithium batteries have become the mainstream. Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable.
The existing lithium battery is provided with an internal circuit of the battery core, signal interference can be generated to equipment when the lithium battery is used, and in order to shield the signal interference, most manufacturers adopt conductive cloth to package the battery core. However, most of the packaged batteries do not detect short circuits between the conductive cloth and the positive electrode and the negative electrode of the battery cell, and once the conductive cloth and the battery cell are short-circuited, the battery cell can cause a shell corrosion problem, and the service life of the battery cell is influenced.
Accordingly, in the present patent application, the applicant has studied a battery leakage detecting circuit and a battery leakage detecting jig to solve the above-mentioned problems.
Disclosure of utility model
The utility model aims at overcoming the defects of the prior art, and mainly aims to provide a battery leakage detection circuit and a battery leakage detection jig, which can avoid missing or misdetection caused by the fact that a battery to be detected is not in good contact when detecting whether a conductive material on the surface of the packaged lithium battery to be detected is in short circuit with the anode and the cathode in the packaged lithium battery, ensure the reliability of detection, improve the detection efficiency and simplify the whole jig structure.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The battery leakage detection circuit comprises a first power supply battery BT1, a second power supply battery BT2, a third power supply battery BT3, a first resistor, a second resistor, a third resistor, a fourth resistor, a first conductive contact unit used for being connected with conductive cloth on the surface of a battery to be detected, a second conductive contact unit used for being connected with the conductive cloth on the surface of the battery to be detected, a first LED lamp used for displaying positive and negative electrodes of a battery cell of the battery to be detected to be correctly connected, a second LED lamp used for displaying positive electrode connection end of a battery cell in the battery to be detected, a negative electrode connection end of the battery cell in the battery to be detected, and a first alarm unit and a second alarm unit used for alarming when the battery cell in the battery to be detected and the conductive cloth on the surface of the battery to be detected are in short circuit;
The positive electrode of the first power supply battery BT1 is connected with one end of the second resistor, the positive electrode of the first LED lamp is connected with the other end of the second resistor through the first resistor, the positive electrode connecting end is connected with the other end of the second resistor, the positive electrode of the second power supply battery BT2 is connected with the negative electrode connecting end through the third resistor, and the negative electrode connecting end is connected with the negative electrode of the first LED lamp;
the negative electrode of the second power supply battery BT2 is connected with one end of the second alarm unit, and the other end of the second alarm unit and the negative electrode of the second LED lamp are jointly connected with the second conductive contact unit;
The positive pole of the second LED lamp is connected with the positive pole of the third power supply battery BT3 through a fourth resistor, the negative pole of the third power supply battery BT3 and one end of the first alarm unit are connected with the first conductive contact unit together, and the other end of the first alarm unit is connected with the negative pole of the first power supply battery BT 1.
As a preferable scheme, the first alarm unit comprises a third LED lamp, and the second alarm unit comprises a fourth LED lamp;
The cathode of the second power supply battery BT2 is connected with the cathode of the third LED lamp, and the anode of the third LED lamp and the cathode of the second LED lamp are jointly connected with the second conductive contact unit;
The negative electrode of the third power supply battery BT3 and the positive electrode of the fourth LED lamp are connected with the first conductive contact unit together, and the negative electrode of the fourth LED lamp is connected with the negative electrode of the first power supply battery BT 1.
The first alarm unit further comprises a first buzzer, and the second alarm unit further comprises a second buzzer;
The negative electrode of the second power supply battery BT2 is connected with the negative electrode of the third LED lamp through the second buzzer, and the negative electrode of the fourth LED lamp is connected with the negative electrode of the first power supply battery BT1 through the first buzzer.
The utility model provides a battery electric leakage detection tool, includes the tool body and sets up the detection circuitry on the tool body, detection circuitry is battery electric leakage detection circuitry.
As a preferable scheme, the first alarm unit further comprises a third LED lamp and a first buzzer, and the second alarm unit further comprises a fourth LED lamp and a second buzzer;
the first buzzer and the second buzzer are arranged on the jig body at a left-right side-by-side interval.
As a preferable scheme, the first LED lamp and the second LED lamp are arranged at a left-right side-by-side interval and are commonly located below any buzzer, and the first conductive contact unit, the second conductive contact unit, the positive electrode connecting end and the negative electrode connecting end are all located below any LED lamp.
As a preferable scheme, the third LED lamp and the fourth LED lamp are arranged at a left-right side-by-side interval and are commonly positioned below any buzzer.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular: the method mainly comprises the steps that a contact confirmation circuit is formed by a third power supply battery BT3, a fourth resistor, a second LED lamp, a second conductive contact unit and a first conductive contact unit, and a positive electrode connecting end, a first resistor, a first LED lamp and a negative electrode connecting end are assisted to form another contact confirmation circuit, so that missing detection or false detection caused by the fact that a to-be-detected battery is not contacted well when a conductive material on the surface of the packaged to-be-detected lithium battery is short-circuited with the internal positive electrode and negative electrode of the packaged to-be-detected lithium battery is avoided, the reliability of detection is ensured, and the detection efficiency is improved; the whole jig has simple structure;
Secondly, through first bee calling organ, second bee calling organ, third LED lamp and fourth LED lamp, can realize when the electric leakage condition appears, carry out audible and visual dual alarm, ensure the conveying of alarm.
Moreover, the positive electrode connecting end and/or the negative electrode connecting end adopt buckling ends, the second conductive contact unit and the first conductive contact unit adopt aluminum foils, conductive cloth on the surface of the battery to be detected can be directly placed on the aluminum foils, and then the positive electrode and the negative electrode of the battery core of the battery to be detected can be buckled to realize detection, so that the detection efficiency is further improved.
Drawings
FIG. 1 is a first schematic circuit diagram of an embodiment of the present utility model (third and fourth LED lamps not shown);
FIG. 2 is a second schematic circuit diagram of an embodiment of the present utility model (showing a third LED lamp and a fourth LED lamp);
Fig. 3 is a schematic view of the first connection state of fig. 2 (mainly showing that the conductive cloth on the surface of the battery to be tested contacts the first conductive contact unit and the second conductive contact unit);
FIG. 4 is a schematic diagram of the second connection state of FIG. 2 (mainly showing that after the conductive cloth on the surface of the battery to be tested contacts the first conductive contact unit and the second conductive contact unit correctly, the positive and negative electrodes of the battery cell in the battery to be tested are connected with the corresponding connection ends respectively);
FIG. 5 is a schematic diagram of the third connection state of FIG. 2 (mainly showing the situation that the positive electrode of the cell in the battery to be tested is shorted with the conductive cloth after the battery to be tested is properly installed);
FIG. 6 is a schematic diagram of the third connection state of FIG. 2 (mainly showing the situation that the negative electrode of the cell in the battery to be tested is shorted with the conductive cloth after the battery to be tested is properly installed);
FIG. 7 is a first top view of a fixture body according to an embodiment of the present utility model;
FIG. 8 is a second top view of the fixture body (showing the battery under test) according to an embodiment of the present utility model;
FIG. 9 is a flow chart of the leakage detection according to an embodiment of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description.
As shown in fig. 1 to 9, a battery leakage detection circuit includes a first power supply battery BT1, a second power supply battery BT2, a third power supply battery BT3, a first resistor (e.g., R1 in fig. 2), a second resistor (e.g., R2 in fig. 2), a third resistor (e.g., R3 in fig. 2), a fourth resistor (e.g., R4 in fig. 2), a first conductive contact unit 11 for connecting to a conductive cloth 21 on a surface of a battery 20 to be detected, a second conductive contact unit 12 for connecting to a conductive cloth 21 on a surface of the battery 20 to be detected, a first LED lamp (e.g., LED1 in fig. 2) for displaying positive and negative poles of a battery cell 21 on a surface of the battery 20 to be detected, a second LED lamp (e.g., LED2 in fig. 2) for displaying positive poles of a battery cell 22 in the battery 20 to be detected, a negative pole connection terminal (e.g., p+ in fig. 2) for connecting to a negative pole 23 of a battery cell in the battery 20 to be detected, and a light alarm unit 20 to be detected for performing an alarm with the second conductive cloth 21 in the battery 20 to be detected.
The positive pole of the first power supply battery BT1 is connected with one end of the second resistor, the positive pole of the first LED lamp is connected with the other end of the second resistor through the first resistor, the positive pole connecting end is connected with the other end of the second resistor, the positive pole of the second power supply battery BT2 is connected with the negative pole connecting end through the third resistor, and the negative pole connecting end is connected with the negative pole of the first LED lamp. In this embodiment, the positive electrode connection end and/or the negative electrode connection end are/is a buckling end. Through the form of lock end, be convenient for with the positive and negative pole connection of the electric core of battery 20 that awaits measuring, improve detection efficiency.
The negative electrode of the second power supply battery BT2 is connected with one end of the second alarm unit, and the other end of the second alarm unit and the negative electrode of the second LED lamp are jointly connected with the second conductive contact unit;
The positive pole of the second LED lamp is connected with the positive pole of the third power supply battery BT3 through a fourth resistor, the negative pole of the third power supply battery BT3 and one end of the first alarm unit are connected with the first conductive contact unit together, and the other end of the first alarm unit is connected with the negative pole of the first power supply battery BT 1.
In this embodiment, the first alarm unit includes a third LED lamp (e.g., LED3 in fig. 2), and the first alarm unit includes a fourth LED lamp (e.g., LED4 in fig. 2).
The negative electrode of the second power supply battery BT2 is connected with the negative electrode of the third LED lamp, and the positive electrode of the third LED lamp and the negative electrode of the second LED lamp are jointly connected with the second conductive contact unit 12.
The positive pole of second LED lamp passes through the positive pole of fourth resistance connection third power supply battery BT3, and the negative pole of third power supply battery BT3 and the positive pole of fourth LED lamp connect first conductive contact unit 11 jointly, and the negative pole of fourth LED lamp is connected the negative pole of first power supply battery BT 1.
In this embodiment, the first conductive contact unit 11 and the second conductive contact unit 12 may be made of aluminum foil, but other metal sheets may be used, which is not limited herein.
The first alarm unit further comprises a first buzzer (shown as B1 in fig. 2), and the second alarm unit further comprises a second buzzer (shown as B2 in fig. 2).
The negative electrode of the second power supply battery BT2 is connected with the negative electrode of the third LED lamp through the second buzzer, and the negative electrode of the fourth LED lamp is connected with the negative electrode of the first power supply battery BT1 through the first buzzer.
In this embodiment, the first LED lamp and the second LED lamp are green lamps, and the third LED lamp and the fourth LED lamp are red lamps.
After the conductive cloth 21 on the surface of the battery 20 to be tested contacts the first conductive contact unit 11 and the second conductive contact unit 12, if the conductive cloth 21 on the surface of the battery 20 to be tested contacts the first conductive contact unit 11 and the second conductive contact unit 12 in place, a loop is formed among the third power supply battery BT3, the fourth resistor, the second LED lamp, the first conductive contact unit 11, the conductive cloth 21 on the surface of the battery 20 to be tested and the second conductive contact unit 12, and the second LED lamp is lighted; otherwise, the second LED lamp is not turned on, i.e. the contact between the conductive cloth 21 on the surface of the battery 20 to be tested and the first conductive contact unit 11 and the second conductive contact unit 12 is poor, and the contact needs to be re-performed.
After the positive electrode and the negative electrode of the battery cell in the battery 20 to be tested are respectively connected with the corresponding connecting ends, if the positive electrode and the negative electrode of the battery cell in the battery 20 to be tested are respectively connected with the corresponding connecting ends in place, a loop is formed among the positive electrode 22 of the battery cell in the battery 20 to be tested, the first resistor, the first LED lamp and the negative electrode 23 of the battery cell in the battery 20 to be tested, and the first LED lamp is lighted; otherwise, the first LED lamp is not turned on, i.e. the positive and negative electrodes of the battery cells in the battery 20 to be tested are in poor contact with the corresponding connection ends respectively, and need to be contacted again.
After ensuring that the conductive cloth 21 on the surface of the battery 20 to be tested is completely and correctly contacted with the first conductive contact unit 11 and the second conductive contact unit 12 and ensuring that the positive electrode and the negative electrode of the battery core in the battery 20 to be tested are completely and correctly connected with the corresponding connection ends;
A. if the positive electrode 22 of the cell in the battery 20 to be measured is short-circuited with the conductive cloth 21, two cases are:
a1, in the case of no third LED lamp and no fourth LED lamp:
A loop is formed among the first power supply battery BT1, the first buzzer, the first conductive contact unit 11, the conductive cloth 21 on the surface of the battery 20 to be tested, the positive electrode connecting end and the second resistor, and the first buzzer is electrified to send out alarm sound;
Meanwhile, a loop is formed between the positive electrode 22 of the battery core in the battery 20 to be tested, the conductive cloth 21 on the surface of the battery 20 to be tested, the second conductive contact unit 12, the second buzzer, the second power supply battery BT2, the third resistor and the negative electrode 23 of the battery core in the battery 20 to be tested, and the second buzzer is also electrified to send out an alarm sound.
A2, under the condition that a third LED lamp and a fourth LED lamp are arranged:
A loop is formed among the first power supply battery BT1, the first buzzer, the first conductive contact unit 11, the conductive cloth 21 on the surface of the battery 20 to be tested, the positive electrode connecting end, the fourth LED lamp and the second resistor, the fourth LED lamp is lightened, and the first buzzer is electrified to send out alarm sound;
Meanwhile, a loop is formed among the positive electrode 22 of the battery core in the battery 20 to be tested, the conductive cloth 21 on the surface of the battery 20 to be tested, the second conductive contact unit 12, the second buzzer, the second power supply battery BT2, the third resistor, the third LED lamp and the negative electrode 23 of the battery core in the battery 20 to be tested, the third LED lamp is lightened, and the second buzzer is also electrified to send out alarm sound.
B. if the negative electrode 23 of the cell in the battery 20 to be measured is short-circuited with the conductive cloth 21, two cases are divided:
b1, in the absence of the third LED lamp and the fourth LED lamp:
a loop is formed among a negative electrode 23 of a battery core in the battery 20 to be tested, a conductive cloth 21 on the surface of the battery 20 to be tested, a second conductive contact unit 12, a second buzzer, a second power supply battery BT2 and a third resistor, and the second buzzer is electrified to send out an alarm sound;
b2, under the condition that a third LED lamp and a fourth LED lamp are arranged:
A loop is formed among a negative electrode 23 of a battery core in the battery 20 to be tested, a conductive cloth 21 on the surface of the battery 20 to be tested, the second conductive contact unit 12, the second buzzer, a third resistor of the second power supply battery BT2 and a third LED lamp, the third LED lamp is lightened, and the second buzzer is also electrified to send out an alarm sound.
A battery leakage detection jig, as shown in figure 7, comprises a jig body 30 and a detection circuit arranged on the jig body 30, wherein the detection circuit is the battery leakage detection circuit.
The first buzzer 31 and the second buzzer 32 are arranged on the jig body 30 at a left-right side-by-side distance, the first LED lamp 33 and the second LED lamp 34 are arranged at a left-right side-by-side distance and are commonly located below any buzzer, and the third LED lamp 35 and the fourth LED lamp 36 are arranged at a left-right side-by-side distance and are commonly located below any buzzer.
The first conductive contact unit 11, the second conductive contact unit 12, the positive electrode connection terminal 13 and the negative electrode connection terminal 14 are all located below any LED lamp.
In this embodiment, as shown in fig. 7, the first buzzer 31, the second buzzer 32, the first LED lamp 33, the second LED lamp 34, the third LED lamp 35 and the fourth LED lamp 36 are all exposed at the upper half section of the front end surface of the jig body 30, and the first LED lamp 33 and the second LED lamp 34 are arranged at a side-by-side spacing from the left side to the right side of the third LED lamp 35 and the fourth LED lamp 36.
The first conductive contact unit 11, the second conductive contact unit 12, the positive electrode connection end 13 and the negative electrode connection end 14 are all arranged on the lower half section of the front end face of the jig body 30, the first conductive contact unit 11 and the second conductive contact unit 12 are arranged at a left-right side-by-side interval, and the positive electrode connection end 13 and the negative electrode connection end 14 are both positioned on the left side of the second conductive contact unit 12.
A leakage detection method based on the battery leakage detection jig comprises the following steps of
Connecting the conductive cloth 21 on the surface of the battery 20 to be tested with the first conductive contact unit 11 and the second conductive contact unit 12 of the jig body, judging whether the second LED lamp is lighted, and if yes, connecting the anode and the cathode of the battery core of the battery 20 to be tested with the anode connecting end and the cathode connecting end respectively; if not, the conductive cloth 21 on the surface of the battery 20 to be tested is connected with the first conductive contact unit 11 and the second conductive contact unit 12 of the jig body again until the second LED lamp is lighted;
When the second LED lamp is lighted, connecting the anode and the cathode of the battery core of the battery 20 to be tested with the anode connecting end and the cathode connecting end respectively; judging whether the first LED lamp is lightened or not and judging whether the first buzzer and the second buzzer sound an alarm or not;
If the first LED lamp is not lighted, connecting the anode and the cathode of the battery core of the battery 20 to be tested with the anode connecting end and the cathode connecting end respectively until the first LED lamp is lighted;
If only the first LED lamp is lighted, the contact is good when the battery 20 to be detected is detected, and the battery 20 to be detected has no leakage;
If the first LED lamp is lighted, and the third LED lamp and the fourth LED lamp are lighted at the same time, the positive electrode 22 of the battery core in the battery 20 to be tested and the conductive cloth 21 thereof are short-circuited;
If both the first LED lamp and the third LED lamp are turned on, it is indicated that the negative electrode 23 of the cell in the battery 20 to be tested and the conductive cloth 21 thereof are short-circuited.
In this embodiment, when the positive electrode 22 of the battery core in the battery 20 to be tested and the conductive cloth 21 thereof are short-circuited, both the first LED lamp, the third LED lamp and the fourth LED lamp are lighted, and the first buzzer and the second buzzer simultaneously emit an alarm sound;
When the negative electrode 23 of the battery core in the battery 20 to be tested is short-circuited with the conductive cloth 21 thereof, both the first LED lamp and the third LED lamp are lighted, and the second buzzer sounds an alarm.
In summary, during testing, as long as the battery 20 to be tested is correctly contacted with the battery leakage detection jig, the first LED lamp and the second LED lamp are both in a normally-on state, otherwise, the battery 20 to be tested is in poor contact with the battery leakage detection jig, and the battery is re-contacted and then tested, so that false detection can be avoided. The utility model is characterized in that a contact confirmation circuit is mainly formed by a third power supply battery BT3, a fourth resistor, a second LED lamp, a second conductive contact unit and a first conductive contact unit, and a positive electrode connecting end, a first resistor, a first LED lamp and a negative electrode connecting end are assisted to form another contact confirmation circuit, so that missing detection or false detection caused by the fact that a conductive material on the surface of a packaged lithium battery to be detected is not contacted with the battery to be detected when the surface of the packaged lithium battery to be detected is in short circuit with the positive electrode and the negative electrode in the packaged lithium battery to be detected is avoided, the reliability of detection is ensured, and the detection efficiency is improved; the whole jig is simple in structure, and the whole detection method is simple and reliable;
Secondly, through first bee calling organ, second bee calling organ, third LED lamp and fourth LED lamp, can realize when the electric leakage condition appears, carry out audible and visual dual alarm, ensure the conveying of alarm.
Moreover, the positive electrode connecting end and/or the negative electrode connecting end adopt buckling ends, the second conductive contact unit and the first conductive contact unit adopt aluminum foils, conductive cloth on the surface of the battery to be detected can be directly placed on the aluminum foils, and then the positive electrode and the negative electrode of the battery core of the battery to be detected can be buckled to realize detection, so that the detection efficiency is further improved.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the technical scope of the present utility model, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.
Claims (7)
1. A battery leakage detection circuit is characterized in that: the device comprises a first power supply battery BT1, a second power supply battery BT2, a third power supply battery BT3, a first resistor, a second resistor, a third resistor, a fourth resistor, a first conductive contact unit used for being connected with conductive cloth on the surface of a battery to be tested, a second conductive contact unit used for being connected with the conductive cloth on the surface of the battery to be tested, a first LED lamp used for displaying positive and negative poles of a battery cell of the battery to be tested to be correctly connected, a second LED lamp used for displaying positive pole connection end of a battery cell in the battery to be tested, a negative pole connection end of the battery cell in the battery to be tested, a first alarm unit used for alarming when the battery cell in the battery to be tested and the conductive cloth on the surface of the battery to be tested are in short circuit;
The positive electrode of the first power supply battery BT1 is connected with one end of the second resistor, the positive electrode of the first LED lamp is connected with the other end of the second resistor through the first resistor, the positive electrode connecting end is connected with the other end of the second resistor, the positive electrode of the second power supply battery BT2 is connected with the negative electrode connecting end through the third resistor, and the negative electrode connecting end is connected with the negative electrode of the first LED lamp;
the negative electrode of the second power supply battery BT2 is connected with one end of the second alarm unit, and the other end of the second alarm unit and the negative electrode of the second LED lamp are jointly connected with the second conductive contact unit;
The positive pole of the second LED lamp is connected with the positive pole of the third power supply battery BT3 through a fourth resistor, the negative pole of the third power supply battery BT3 and one end of the first alarm unit are connected with the first conductive contact unit together, and the other end of the first alarm unit is connected with the negative pole of the first power supply battery BT 1.
2. The battery leakage detection circuit according to claim 1, wherein: the first alarm unit comprises a third LED lamp, and the second alarm unit comprises a fourth LED lamp;
The cathode of the second power supply battery BT2 is connected with the cathode of the third LED lamp, and the anode of the third LED lamp and the cathode of the second LED lamp are jointly connected with the second conductive contact unit;
The negative electrode of the third power supply battery BT3 and the positive electrode of the fourth LED lamp are connected with the first conductive contact unit together, and the negative electrode of the fourth LED lamp is connected with the negative electrode of the first power supply battery BT 1.
3. The battery leakage detection circuit according to claim 1, wherein:
The first alarm unit further comprises a first buzzer, and the second alarm unit further comprises a second buzzer;
The negative electrode of the second power supply battery BT2 is connected with the negative electrode of the third LED lamp through the second buzzer, and the negative electrode of the fourth LED lamp is connected with the negative electrode of the first power supply battery BT1 through the first buzzer.
4. A battery leakage detection jig is characterized in that: the battery leakage detection circuit comprises a jig body and a detection circuit arranged on the jig body, wherein the detection circuit is the battery leakage detection circuit according to claim 1.
5. The battery leakage detection jig according to claim 4, wherein: the first alarm unit further comprises a third LED lamp and a first buzzer, and the second alarm unit further comprises a fourth LED lamp and a second buzzer;
the first buzzer and the second buzzer are arranged on the jig body at a left-right side-by-side interval.
6. The battery leakage detection jig according to claim 5, wherein: the first LED lamp and the second LED lamp are arranged at a left-right side-by-side interval and are commonly located below any buzzer, and the first conductive contact unit, the second conductive contact unit, the positive electrode connecting end and the negative electrode connecting end are all located below any LED lamp.
7. The battery leakage detection jig according to claim 5, wherein: the third LED lamp and the fourth LED lamp are arranged at a left-right side-by-side interval and are commonly located below any buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646090.9U CN221239058U (en) | 2023-09-27 | 2023-09-27 | Battery leakage detection circuit and battery leakage detection jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646090.9U CN221239058U (en) | 2023-09-27 | 2023-09-27 | Battery leakage detection circuit and battery leakage detection jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221239058U true CN221239058U (en) | 2024-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322646090.9U Active CN221239058U (en) | 2023-09-27 | 2023-09-27 | Battery leakage detection circuit and battery leakage detection jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221239058U (en) |
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2023
- 2023-09-27 CN CN202322646090.9U patent/CN221239058U/en active Active
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