CN202994999U - Cell voltage measuring instrument - Google Patents
Cell voltage measuring instrument Download PDFInfo
- Publication number
- CN202994999U CN202994999U CN 201220571145 CN201220571145U CN202994999U CN 202994999 U CN202994999 U CN 202994999U CN 201220571145 CN201220571145 CN 201220571145 CN 201220571145 U CN201220571145 U CN 201220571145U CN 202994999 U CN202994999 U CN 202994999U
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- voltage
- reference voltage
- measurement
- battery
- meter
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Abstract
The utility model discloses a cell voltage measuring instrument comprising a voltage measurement meter and a measurement box for holding cells, wherein a current conducting plate is laid on the inner bottom part of the measurement box, a negative electrode of the voltage measurement meter is connected with the current conducting plate, and a positive electrode of the voltage measurement meter is connected with a positive electrode of a cell. In measurement processes, cells to be measured are arranged in the measurement box in a tidy manner, positive electrodes of all cells are faces upward, negative electrodes contact with the current conducting plate in the measurement box, a negative meter pen of the voltage measurement meter is connected onto the current conducting plate, a positive meter pen of the voltage measurement meter contacts positive electrodes of the cells in a one-by-one manner, voltage of each cell is detected, and cells with qualified voltage are picked out. Voltage of all cells in the measurement box can be measured by just connecting negative meter pen of the voltage measurement meter to the current conducting plate for once, the negative electrodes of all cells do not need to be connected, work efficiency is remarkably improved, measurement errors can be reduced, and measurement precision can be improved.
Description
Technical field
The utility model relates to the battery voltage measurement Instrument technology field, is specifically related to a kind of battery voltage measurement instrument.
Background technology
Lithium battery is that a class is negative material, the battery that uses non-aqueous electrolytic solution by lithium metal or lithium alloy.Be widely used in portable electronics with its distinctive performance advantage, such as: laptop computer, video camera, mobile device etc.Because the chemical characteristic of lithium metal is very active, make processing, preservation, the use of lithium metal, very high to environmental requirement.Therefore in the lithium battery batch production is produced, need to the properties of battery be detected, comprising the detection to the rate of qualified voltage of the battery produced.
In traditional detection method, general voltage tester such as the voltage tester table of adopting, positive test pencil with the voltage test chart docks with the positive pole of battery, negative test pencil docks with the negative pole of battery, each battery is carried out voltage tester one by one, and the voltage of being measured by the voltage tester table is compared with normal voltage and is determined whether qualifiedly, and electromagnetism of the every side of this traditional method of testing all needs to connect the both positive and negative polarity of battery, waste time and energy, inefficiency and easily cause test error.
Application number is that 201110357780.1 Chinese invention patent application discloses a kind of pick-up unit tester for lithium battery, connect explosion-proof tank by cable, the bottom position of explosion-proof tank one side is provided with an entrance hole, the explosion-proof tank leading flank is an explosion door of splitting, on the explosion door of splitting, view window is set, on the end face of explosion-proof tank, blowdown valve is set; The box house of explosion-proof tank is provided with testing stand, places lithium battery on testing stand, and cable connects lithium battery.
This device is mainly used in device that over-charge of lithium battery electricity, overdischarge and excess current are detected, the unexpected injury of blasting and causing in the time of can preventing from detecting, but the test for the voltage under normal circumstances of each battery, this device is too loaded down with trivial details, and cost is too high, is unfavorable for that medium-sized and small enterprises are to the control of cost.
The utility model content
The utility model provides a kind of battery voltage measurement instrument, and is simple in structure, convenient applicable, greatly improved detection efficiency and the accuracy of detection of cell voltage.
A kind of battery voltage measurement instrument, comprise the voltage tester table, the testing cassete that also comprises the splendid attire mesuring battary, described testing cassete inner bottom part is equipped with current-carrying plate, the having be used to the negative test pencil that connects described current-carrying plate and the positive test pencil that be used for to connect the mesuring battary positive pole of described voltage tester table.
During test, mesuring battary fitly is arranged in testing cassete, the positive pole of all batteries up, current-carrying plate in negative pole and testing cassete contacts, the negative test pencil of voltage tester table is connected on current-carrying plate, with the positive test pencil of the voltage test chart positive pole of contact measured battery one by one, the voltage of each mesuring battary is detected, the underproof battery of voltage is chosen.The voltage of all mesuring battaries of test in testing cassete only need connect the primary conductive plate, does not need to connect the negative pole of each mesuring battary, and work efficiency significantly improves, and can Reduce measurement error, improves measuring accuracy.
With regard to described voltage tester table, can be existing conventional voltage tester table, in the utility model, as a kind of preferred technical scheme, described voltage tester table comprises: the sampling unit that gathers the voltage signal of mesuring battary; Produce the reference voltage generating circuit of reference voltage; Be used for optionally showing the display unit of described voltage signal or reference voltage; The comparing unit that is used for acceptance and more described voltage signal and reference voltage; Be used for receiving the alarm unit of described comparing unit output signal.
The positive test pencil of voltage tester table all is connected with sampling unit with negative test pencil, and during test, negative test pencil is connected with current-carrying plate, the positive pole of mesuring battary in positive test pencil connection test box, and the voltage signal of collection mesuring battary sends to comparing unit; Meanwhile, the reference voltage that reference voltage generating circuit produces also sends to comparing unit, the reference voltage that the voltage signal that comparing unit reception sampling sampling unit sends and reference voltage generating circuit produce also compares voltage signal and reference voltage, voltage as mesuring battary is undesirable, rub-out signal is sent to alarm unit, by the alarm unit alert.
With regard to described alarm unit, can adopt existing routine techniques, in the utility model, described alarm unit is loudspeaker and/or pilot lamp.Send abnormal sound or light prompt operating personnel when alarm unit is received the rub-out signal of comparing unit transmission, underproof battery is chosen.
In the voltage tester process, described display unit shows the voltage that sampling unit gathers, when needs are adjusted reference voltage, the reference voltage that the display unit display reference voltage generating circuit occurs, in order to facilitate the switching of display unit between both, the present invention has taked a kind of preferred technical scheme, that is: described display unit optionally shows described voltage signal or reference voltage by a switching switch.
When test battery voltage makes, by this change-over switch, display unit is connected with sampling unit; Adjusting reference voltage when needs is by this change-over switch, display unit to be connected with reference voltage generating circuit.
As a kind of preferred, described display unit is digital display screen, conveniently, directly shows information of voltage.
When testing the mesuring battary of different size, need to adjust reference voltage, therefore, in order to adjust more easily reference voltage, described reference voltage generating circuit is provided with the knob of regulating reference voltage.
The beneficial effects of the utility model:
The utility model battery voltage measurement instrument is simple in structure, convenient applicable, can carry out batch detection to cell voltage to be measured, the voltage of all mesuring battaries in testing cassete only need connect the primary conductive plate, and do not need to connect the negative pole of each mesuring battary, work efficiency significantly improves, and can Reduce measurement error, improve measuring accuracy.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Shown in figure, Reference numeral is as follows:
1-testing cassete 2-current-carrying plate 3-mesuring battary
4-sampling unit 5-comparing unit 6-alarm unit
7-display unit 8-change-over switch 9-reference voltage generating circuit
The 10-knob.
Embodiment
As shown in Figure 1, a kind of battery voltage measurement instrument comprises testing cassete 1, is laid on current-carrying plate 2 and voltage tester table in testing cassete 1, and the voltage tester table has the negative test pencil that is connected with current-carrying plate and the positive test pencil that is connected with mesuring battary 3 positive poles.
Testing cassete 1 is the open box of a rectangle, and current-carrying plate 2 is laid on the bottom in testing cassete 1, and during test, mesuring battary 3 fitly is arranged in testing cassete 1, the positive pole of all mesuring battaries 3 up, negative pole contacts with current-carrying plate 2.
The voltage tester table comprises sampling unit 4, comparing unit 5, alarm unit 6, display unit 7, change-over switch 8, reference voltage generating circuit 9 and knob 10.
An output terminal of sampling unit 4 is connected with one of them input end of comparing unit 5, and an output terminal of reference circuit circuit for generating 9 is connected with another input end of comparator circuit 5, and the output terminal of comparing unit 5 is connected with the input end of warning circuit 6; Another output terminal of sampling unit 4 all is connected with the input end of display unit 7 with another output terminal of reference voltage generating circuit 9, be provided with change-over switch 8 between display unit 7, sampling unit 4 and reference voltage generating circuit 9, change-over switch 8 is connected with the three respectively, switch between display unit 7 and sampling unit 4 or display unit 7 and reference voltage generating circuit 9, make display unit 7 optionally show the voltage signal of sampling unit 4 collections or the reference voltage that reference voltage generating circuit produces; Reference voltage generating circuit 9 is provided with the knob 10 of regulating reference voltage; Positive test pencil and negative test pencil all are connected on sampling unit 4.
Test philosophy of the present utility model and method of testing are as follows:
Negative test pencil is connected with current-carrying plate 2, the positive pole of the mesuring battary 3 that positive test pencil and testing cassete 1 are interior is connected, gather the battery signal of mesuring battary 3 by sampling unit 4, sampling unit 4 sends to comparing unit 5 with the voltage signal that gathers, change-over switch 8 connects display unit 7 and sampling units 4 at this moment, disconnect between display unit 7 and reference voltage generating circuit 9, display unit 7 shows the voltage signal that sampling unit 4 gathers; When sampling unit 4 gathers the voltage signal of mesuring battary 3, reference voltage generating circuit 9 produces reference voltage and sends to comparator circuit 5, comparator circuit 5 is accepted and comparative voltage signal and reference voltage, when the voltage of mesuring battary 3 is undesirable, comparator circuit 5 sends to alarm unit 6 with rub-out signal, sends the abnormal sound alert after alarm unit 6 receives this abnormal signal.
When needs are tested the battery of different size, need to adjust the reference voltage of voltage tester table, at this moment, change-over switch 8 switches to reference voltage generating circuit 9, display unit 7 and sampling unit 4 are disconnected, and display unit 7 display reference voltages are adjusted to described reference voltage by knob 10.
Battery voltage measurement instrument of the present utility model in use, the battery of tape test fitly is emitted in testing cassete 1, positive pole up, negative pole contacts with current-carrying plate 2, negative test pencil and the current-carrying plate 2 of voltage tester table connect the jail, with the positive test pencil of the voltage test chart positive pole of contact measured battery 3 one by one, successively to the voltage of individual mesuring battary 3 is tested, the complete next group of changing again of all battery testings.
The above is only better implementation example of the present utility model, is not limited to the utility model, and is all within the utility model spirit and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. battery voltage measurement instrument, comprise the voltage tester table, it is characterized in that, the testing cassete that also comprises the splendid attire mesuring battary, described testing cassete inner bottom part is equipped with current-carrying plate, and described voltage tester table has be used to the negative test pencil that connects described current-carrying plate and for the positive test pencil that connects the mesuring battary positive pole.
2. battery voltage measurement instrument according to claim 1, is characterized in that, described voltage tester table comprises:
Gather the sampling unit of the voltage signal of mesuring battary;
Produce the reference voltage generating circuit of reference voltage;
Be used for optionally showing the display unit of described voltage signal or reference voltage;
The comparing unit that is used for acceptance and more described voltage signal and reference voltage;
Be used for receiving the alarm unit of described comparing unit output signal.
3. battery voltage measurement instrument according to claim 2, is characterized in that, described alarm unit is loudspeaker and/or pilot lamp.
4. battery voltage measurement instrument according to claim 3, is characterized in that, described display unit switches switch by one and optionally shows described voltage signal or reference voltage.
5. battery voltage measurement instrument according to claim 4, is characterized in that, described display unit is digital display screen.
6. battery voltage measurement instrument according to claim 5, is characterized in that, described reference voltage generating circuit is provided with the knob of regulating reference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571145 CN202994999U (en) | 2012-11-01 | 2012-11-01 | Cell voltage measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571145 CN202994999U (en) | 2012-11-01 | 2012-11-01 | Cell voltage measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994999U true CN202994999U (en) | 2013-06-12 |
Family
ID=48566168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220571145 Expired - Fee Related CN202994999U (en) | 2012-11-01 | 2012-11-01 | Cell voltage measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594118A (en) * | 2017-12-22 | 2018-09-28 | 深圳瑞隆新能源科技有限公司 | Cell voltage full inspection equipment after a kind of chemical conversion |
-
2012
- 2012-11-01 CN CN 201220571145 patent/CN202994999U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594118A (en) * | 2017-12-22 | 2018-09-28 | 深圳瑞隆新能源科技有限公司 | Cell voltage full inspection equipment after a kind of chemical conversion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |