CN202421313U - Portable current and voltage detector for storage battery - Google Patents
Portable current and voltage detector for storage battery Download PDFInfo
- Publication number
- CN202421313U CN202421313U CN2011205526176U CN201120552617U CN202421313U CN 202421313 U CN202421313 U CN 202421313U CN 2011205526176 U CN2011205526176 U CN 2011205526176U CN 201120552617 U CN201120552617 U CN 201120552617U CN 202421313 U CN202421313 U CN 202421313U
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- China
- Prior art keywords
- current
- digital display
- storage battery
- voltage detector
- voltage
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Abstract
A portable current and voltage detector for a storage battery belongs to detection devices for the storage battery. A current limiting resistor, a starting relay and a current diverter are first connected serially and then connected to two ends of an anode and a cathode to form a main circuit. A time relay and a starting relay coil are firstly connected serially and then connected to two ends of the anode and the cathode. Signals of a digital display voltage meter are taken from two ends of the anode and the cathode, and signals of a digital display current meter are taken from two ends of the current diverter. Power supplying ends of the digital display current meter and the digital display voltage meter are firstly connected parallelly and then connected to a power supply circuit end of a digital display meter. A diode, a digital display power supply circuit, a time relay coil and a button switch are firstly connected serially and then connected to two ends of the anode and the cathode. The portable current and voltage detector for the storage battery can simultaneously detect parameter values and changes of the parameter values of current and voltage, and can accurately judge failure problems such as corrosion deformation of a storage battery grid, active substance shedding of an anode plate, irreversible sulfation, thermal runaway and capacity premature loss.
Description
Technical field
The utility model belongs to the accumulator pick-up unit, is mainly used in the trouble shooting and the test of launching various accumulators.Especially under the situation of high-multiplying power discharge, show electric current and voltage and attenuation change thereof simultaneously, add the automatic control of discharge time, thereby, make more right judgement the test and the trouble shooting of accumulator.
Background technology
Be used to measure the detector of accumulator at present; Mostly be that a pushbutton switch and a dropping resistor are in series and are connected to positive and negative measuring junction; Be parallel to a needle dc voltmeter at the positive and negative electrode two ends of the accumulator of surveying; Draw positive and negative two slotted lines respectively by the positive and negative terminals of voltage table, connect the clip that discharge test uses respectively and form.
During measurement, with measuring clip by on the positive and negative positive and negative electrode that clips to tested accumulator respectively.Press the button switch, circuit turn-on.The step-down of current-limiting resistance accumulators, back read-out voltage reading.Because discharge current is little, have only about 50 peaces, so this detector exists defective following: 1, because discharge current is little, the discharge required time is long, and voltage attenuation is slow, so can't the many faults of tested accumulator be made accurately and being judged.All can't measure as reach problems such as term of life (start battery discharging capacity be lower than 70% need scrap replacing), positive plate active substance begin to come off for accumulator.2, voltage can only be surveyed, electric current can not be surveyed.Lack good, a bad parameter of the tested accumulator of evidence.3, can not control automatically discharge time in the test, and the test duration is long slightly, and current-limiting resistance will generate heat and redden.Owing to there is not a cooling measure, at first compares and to change under current-limiting resistance resistance and the normal temperature.Next high temperature that generates heat will influence accuracy of instrument.Detect with regard to accumulators like this and caused certain erroneous judgement.
Summary of the invention
In order to solve the deficiency of above-mentioned accumulator detector (table) in accumulator testing; The utility model provides a kind of portable storage battery electric current, Voltage detector; This detector; Can be relatively easy to measure the parameter of battery current, voltage, when high-multiplying power discharge, electric current, the voltage of out of order accumulator descend rapidly.Thereby, strong evidence and reference is provided for judging the fault of accumulator.
The scheme that the utility model technical solution problem is taked is: comprise betal can, digital display voltage table (V), digital display reometer (A), current diverter (FL), starter relay (QJ), the time relay (SJ), current-limiting resistance (R), pushbutton switch (K), feed circuit (7805), diode (D), cooling fan (FD) and cooling device (SL) are installed respectively in betal can.
Be connected to the positive and negative electrode two ends after current-limiting resistance (R), starter relay (QJ), current diverter (FL) series connection and form major loop; The time relay (SJ) be connected to positive and negative two ends after starter relay coil (QJX) is connected; Digital display voltage table (V) signal is taken at the positive and negative electrode two ends; Digital display reometer (A) signal is taken at current diverter (FL) two ends; Be connected to digital display meter feed circuit (7805)+5V end after digital display reometer (A), the parallel connection of digital display voltage table (V) feeder ear; With being connected to the positive and negative electrode two ends after diode (D), digital display meter feed circuit (7805), time relay coil (SJX), pushbutton switch (K) series connection, slotted line is drawn at positive and negative two ends respectively, connects the test clip.
Described time relay control starter relay regularly breaks off after making the starter relay closure.
Current-limiting resistance (R) is installed in the sealing porcelain tube, and porcelain tube one end is connected with an elastic ball and liquid reserve tank by pipeline, and the liquid reserve tank other end is connected to form the liquid circulation loop by the other end of pipeline and porcelain tube.Elastic ball is in recessed flat-shaped attitude when not working.
The principle of work of the utility model is: after pressing the positive and negative electrode access to the accumulator of needs measurement; Cooling fan (FD) starting begins to be current-limiting resistance (R) cooling; Digital display reometer (A) and digital display voltage table (V) provide the 5V power voltage supply to start working by feed circuit (7805), and digital display voltage table (V) is measured no-load voltage simultaneously.
When pressing the button switch (K), electric current passes through time relay coil (SJX), the time relay (SJ) closing of contact, and the time relay (SJ) timing begins, and gives starter relay coil (QJX) power supply simultaneously, the adhesive of starter relay (QJ) main switch, major loop conducting.Electric current begins to measure to accumulator through current-limiting resistance (R), current diverter (FL).
When measurement reaches official hour, the time relay (SJ) breaks off, starter relay coil (QJX) outage simultaneously, and starter relay (QJ) main switch breaks off, the major loop outage, a test period accomplishes.According to the reading and the attenuation change situation of the electric current and the voltage of measured accumulator, judge the quality of this accumulator.
In the test, when big electric current when the current-limiting resistance (R), current-limiting resistance (R) begins heating, liquid coolant absorbs heat after top pipeline flow-direction resilient bladder, liquid that liquid storage the temperature inside the box is lower get into porcelain bushing shell through pipeline and form cool cycles in the porcelain bushing shell.Fan is lowered the temperature to porcelain bushing shell and liquid reserve tank outside simultaneously.Expanding with heat and contract with cold of liquid coolant regulated by resilient bladder.
Resilient bladder is in recessed flat-shaped attitude when not working.
If when test, mistake connects the positive and negative electrode of tester positive and negative electrode lead-in wire with accumulator instead.Because the diode (D) that is in series with digital display voltage table (V), digital display reometer (A) feed circuit (7805) stops electric current to pass through, the test gauge outfit does not have demonstration.So can protect instrument effectively.
The utility model adopts the digital display meter clear reading; Can measure electric current, two parameter values of voltage and variation thereof simultaneously, can come off to battery grid corrosion-deformation, positive plate active substance, Problem of Failure such as irreversible sulfation, thermal runaway, capacity premature loss accurately judges.
The utility model utilizes starter relay can bear big characteristics of current the short time, solved in the accumulator testing short time during (being advisable in 10 seconds) high-multiplying power discharge heating of contact burn a red difficult problem.Utilize the time relay to solve the automatic control of discharge time.Utilize fan and cooling device to solve current-limiting resistance heating, rubescent, influence the problem of resistance, accuracy of instrument.
High magnification described in the utility model is meant 0.25 hour rate---the discharge current of 0.5 hour rate.
Description of drawings
Fig. 1 is the structural drawing of cooling device among the utility model embodiment.
Fig. 2 is the circuit of the utility model embodiment.
Among the figure, 1, the cooling liquid reserve tank, 2, pipeline, 3, resilient bladder, 4, drain pipe, 5, go up binding post, 6, end cap, 7, current-limiting resistance, 8, porcelain bushing shell, 9, end cap, 10, binding post down, 11, pipeline, 12, feed tube, 13 sealing fasteners.
V---digital display voltage table, A---digital display reometer, FL---current diverter, QJ---starter relay; SJ---the time relay, R---current-limiting resistance, K---pushbutton switch, 7805---feed circuit; D---diode, FD---fan, SL---cooling device.
Embodiment
Embodiment: present embodiment comprises betal can; On betal can, cover the digital display window that is provided with button switch K, reometer numeral display window and voltage table, be separately installed with digital display voltage table V, digital display reometer A, current diverter FL, starter relay QJ, time relay sj, current-limiting resistance R, feed circuit 7805, diode D, cooling fan FD and cooling device SL in the betal can.
Shown in Figure 2, form major loop with being connected to the positive and negative electrode two ends after current-limiting resistance (R), starter relay (QJ), current diverter (FL) series connection; The time relay (SJ) be connected to positive and negative two ends after starter relay coil (QJX) is connected; Digital display voltage table (V) signal is taken at the positive and negative electrode two ends; Digital display reometer (A) signal is taken at current diverter (FL) two ends; Be connected to digital display meter feed circuit (7805)+5V end after digital display reometer (A), the parallel connection of digital display voltage table (V) feeder ear; With being connected to the positive and negative electrode two ends after diode (D), digital display meter feed circuit (7805), time relay coil (SJX), pushbutton switch (K) series connection, slotted line is drawn at positive and negative two ends respectively, connects the test clip.
Shown in Figure 1; Described cooling device comprises liquid coolant storage tank 1; Liquid coolant storage tank 1 is connected with resilient bladder 3 through pipeline 2; Resilient bladder 3 is connected through the end of pipeline 2 with the sealing porcelain bushing shell, is provided with current-limiting resistance 7 in the sealing porcelain bushing shell, and the other end of sealing porcelain bushing shell is connected with liquid coolant storage tank 1 through pipeline 11.
The sealing porcelain bushing shell is made up of the end cap 6,9 at porcelain bushing shell 8 and two ends, and last binding post 5 passes upper end cover 6 and is connected with current-limiting resistance 7, and following binding post 10 passes bottom end cover 9 and is connected with current-limiting resistance 7.
Claims (5)
1. portable storage battery electric current, Voltage detector; It is characterized in that forming, be connected to the positive and negative electrode two ends after current-limiting resistance (R), starter relay (QJ), current diverter (FL) series connection and form major loop by digital display voltage table (V), digital display reometer (A), current diverter (FL), starter relay (QJ), the time relay (SJ), current-limiting resistance (R), pushbutton switch (K), feed circuit (7805), diode (D), cooling fan (FD) and cooling device (SL); The time relay (SJ) be connected to positive and negative two ends after starter relay coil (QJX) is connected; Digital display voltage table (V) signal is taken at the positive and negative electrode two ends; Digital display reometer (A) signal is taken at current diverter (FL) two ends; Be connected to digital display meter feed circuit (7805)+5V end after digital display reometer (A), the parallel connection of digital display voltage table (V) feeder ear; With being connected to the positive and negative electrode two ends after diode (D), digital display meter feed circuit (7805), time relay coil (SJX), pushbutton switch (K) series connection.
2. portable storage battery electric current according to claim 1, Voltage detector; It is characterized in that described cooling device comprises the liquid coolant storage tank; The liquid coolant storage tank is connected with resilient bladder through pipeline; Resilient bladder is connected through the end of pipeline with the sealing porcelain bushing shell, and the other end of sealing porcelain bushing shell is connected with the liquid coolant storage tank through pipeline.
3. portable storage battery electric current according to claim 1, Voltage detector; It is characterized in that described sealing porcelain bushing shell is made up of the end cap at porcelain bushing shell and two ends; Last binding post passes upper end cover and is connected with current-limiting resistance, and following binding post passes bottom end cover and is connected with current-limiting resistance.
4. portable storage battery electric current according to claim 1, Voltage detector is characterized in that described current-limiting resistance is arranged in the sealing porcelain bushing shell.
5. portable storage battery electric current according to claim 1, Voltage detector is characterized in that described time relay control starter relay, regularly break off after making the starter relay closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205526176U CN202421313U (en) | 2011-12-27 | 2011-12-27 | Portable current and voltage detector for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205526176U CN202421313U (en) | 2011-12-27 | 2011-12-27 | Portable current and voltage detector for storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421313U true CN202421313U (en) | 2012-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205526176U Withdrawn - After Issue CN202421313U (en) | 2011-12-27 | 2011-12-27 | Portable current and voltage detector for storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421313U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435831A (en) * | 2011-12-27 | 2012-05-02 | 太原万信蓄电池有限公司 | Portable detector for current and voltage of storage battery |
| CN104931890A (en) * | 2015-05-21 | 2015-09-23 | 渤海船舶重工有限责任公司 | Device and method for testing capacity of storage battery |
| TWI690801B (en) * | 2018-12-28 | 2020-04-11 | 新唐科技股份有限公司 | Detection circuit and method thereof |
-
2011
- 2011-12-27 CN CN2011205526176U patent/CN202421313U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435831A (en) * | 2011-12-27 | 2012-05-02 | 太原万信蓄电池有限公司 | Portable detector for current and voltage of storage battery |
| CN102435831B (en) * | 2011-12-27 | 2014-05-07 | 太原万信蓄电池有限公司 | Portable detector for current and voltage of storage battery |
| CN104931890A (en) * | 2015-05-21 | 2015-09-23 | 渤海船舶重工有限责任公司 | Device and method for testing capacity of storage battery |
| TWI690801B (en) * | 2018-12-28 | 2020-04-11 | 新唐科技股份有限公司 | Detection circuit and method thereof |
| CN111381193A (en) * | 2018-12-28 | 2020-07-07 | 新唐科技股份有限公司 | Detection circuit and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |