CN210323183U - High-voltage residue detection and discharge device for electric vehicle - Google Patents
High-voltage residue detection and discharge device for electric vehicle Download PDFInfo
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- CN210323183U CN210323183U CN201822249270.2U CN201822249270U CN210323183U CN 210323183 U CN210323183 U CN 210323183U CN 201822249270 U CN201822249270 U CN 201822249270U CN 210323183 U CN210323183 U CN 210323183U
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- 238000001514 detection method Methods 0.000 title abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 13
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- 238000012423 maintenance Methods 0.000 abstract description 5
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- 238000010586 diagram Methods 0.000 description 3
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Abstract
The utility model discloses a detection and discharge device are remained to electric motor car high pressure, its characterized in that: the discharge device comprises a discharge internal resistance, wherein a discharge positive electrode is connected with the discharge internal resistance, and the discharge internal resistance is connected with a discharge negative electrode through a discharge indicator lamp. The utility model has the advantages that: discharging is carried out through the discharging internal resistance, so that the damage of residual voltage in a vehicle-mounted electrical system to maintenance personnel is avoided; an indicator lamp is arranged in the loop and used for indicating whether a discharging process exists or not so as to judge whether high-voltage residue exists or not; the display is arranged to display voltage and current data during discharge.
Description
Technical Field
The utility model relates to an electric motor car maintenance detection area, in particular to electric motor car high pressure remains and detects and discharge device.
Background
In the process of repairing the electric vehicle, the power-off switch needs to be pulled out, but partial current still remains in the vehicle, and safety accidents easily occur during personnel maintenance. Under the condition that the electric motor car is in normal work, make its outage in the twinkling of an eye through pulling out power-off switch, at this moment, the high-power electrical apparatus of electric motor car can be outwards discharged, need carry out the detection and the operation of discharging of residual voltage before carrying out safe detection maintenance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-voltage residue detection and discharge device for an electric vehicle.
In order to achieve the purpose, the invention adopts the technical scheme that: the high-voltage residue detection and discharge device for the electric vehicle comprises a discharge internal resistance, wherein a discharge positive electrode is connected with the discharge internal resistance through a discharge indicator lamp, and the discharge internal resistance is connected with a discharge negative electrode.
The device still includes voltage acquisition module, current acquisition module, voltage acquisition module is used for detecting the voltage data of discharging between the positive pole, the negative pole that discharges electric circuit, current acquisition module is used for detecting the current data of discharging between the positive pole, the negative pole that discharges electric circuit, voltage acquisition module, current acquisition module are connected with main control unit's input respectively, main control unit's output is connected with the display.
The discharge indicator lamp is a light emitting diode.
The device also comprises a power supply module, wherein the power supply module outputs power to the voltage acquisition module, the current acquisition module and the main controller respectively, the power supply module comprises a power supply switch, a transformer, a rectifier bridge circuit and a voltage stabilizing circuit, and the external alternating current outputs power supply voltage after passing through the power supply switch, the transformer, the rectifier bridge circuit and the voltage stabilizing circuit.
The utility model has the advantages that: discharging is carried out through the discharging internal resistance, so that the damage of residual voltage in a vehicle-mounted electrical system to maintenance personnel is avoided; an indicator lamp is arranged in the loop and used for indicating whether a discharging process exists or not so as to judge whether high-voltage residue exists or not; the display is arranged to display voltage and current data during discharge.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a circuit diagram of an implementation manner of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
As shown in fig. 1, the high voltage residual detection and discharge device for the electric vehicle comprises a discharge internal resistance, wherein a discharge anode is connected with the discharge internal resistance, the discharge internal resistance is connected with an anode of a light emitting diode, and a cathode of the light emitting diode is connected with a discharge cathode. The device comprises a shell, wherein the discharge internal resistance and the light-emitting diode are integrally arranged in the shell, and a vehicle-mounted electric appliance outside the shell is connected through a discharge anode and a discharge cathode. The discharge anode and the discharge cathode are wiring terminals and are used for being connected with the outside, and can be arranged into jack terminals, the anode and the cathode of an external electric appliance to be tested are inserted into the jack terminals through probes, so that the electric appliance is connected with the device, the discharge anode and the discharge cathode are connected, and the discharge resistor discharges.
Still be provided with the voltage acquisition module in the casing, the current acquisition module, the voltage acquisition module is used for detecting the positive pole that discharges, the voltage data of electric circuit between the negative pole that discharges, can concatenate between the positive pole that discharges and the negative pole that discharges, the current acquisition module is used for detecting the positive pole that discharges, the electric current data of electric circuit between the negative pole that discharges, can concatenate in the positive pole that discharges, in the return circuit that forms between the negative pole that discharges, the voltage acquisition module, the current acquisition module is connected with main control unit's input respectively, main control unit's output is connected with the display, be used for controlling the display to show the voltage current data that detect, the display sets up on the surface of casing. The main control chip can adopt a singlechip with data processing, and the singlechip drives the LED display screen to display voltage and current values.
A power supply module is arranged in a shell of the device, and the power supply module outputs power to a voltage acquisition module, a current acquisition module and a main controller respectively and is used for supplying power to the voltage acquisition module, the current acquisition module and the main controller. The power supply module comprises a power supply switch, a transformer, a rectifier bridge circuit and a voltage stabilizing circuit, and external alternating current outputs power supply voltage after passing through the power supply switch, the transformer, the rectifier bridge circuit and the voltage stabilizing circuit.
The interface that positive, the negative pole that discharges that sets up on the casing corresponds chooses the circular telegram line in electricity field for use according to the circumstances of the on-vehicle electrical apparatus of reality to pass through the electric wire with the positive pole that discharges with on-vehicle electrical apparatus and is connected, and the negative pole of on-vehicle electrical apparatus passes through the electric wire and is connected with the negative pole that discharges to conveniently form the return circuit and discharge.
As shown in fig. 2, a specific circuit diagram of a discharge device is shown, voltage and current are collected by a voltmeter and an ammeter, alternating current is used for supplying power to the voltmeter and the ammeter through a transformer, a rectifier bridge, a voltage stabilizing circuit and the like, then a display LED of the voltmeter and ammeter is arranged on a shell, a discharge anode is connected with a discharge cathode after passing through a discharge resistor, and an LED light emitting D3 is used for displaying discharge work and is connected with a temperature switch in series in a loop to prevent temperature abnormality. The main controller is a voltmeter, a control panel corresponding to the inside of the ammeter, and the display screen is an LED screen corresponding to the ammeter of the voltmeter.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (1)
1. The utility model provides an electric motor car high pressure remains and detects and discharge device which characterized in that: the discharge device comprises a discharge internal resistance, wherein a discharge positive electrode is connected with the discharge internal resistance, and the discharge internal resistance is connected with a discharge negative electrode through a discharge indicator lamp; the device also comprises a voltage acquisition module and a current acquisition module, wherein the voltage acquisition module is used for detecting voltage data of an electric loop between the discharging anode and the discharging cathode, the current acquisition module is used for detecting current data of the electric loop between the discharging anode and the discharging cathode, the voltage acquisition module and the current acquisition module are respectively connected with the input end of the main controller, and the output end of the main controller is connected with the display;
the discharge indicator lamp is a light emitting diode;
the device also comprises a power supply module, wherein the power supply module outputs power to the voltage acquisition module, the current acquisition module and the main controller respectively, the power supply module comprises a power supply switch, a transformer, a rectifier bridge circuit and a voltage stabilizing circuit, and external alternating current outputs power supply voltage after passing through the power supply switch, the transformer, the rectifier bridge circuit and the voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249270.2U CN210323183U (en) | 2018-12-29 | 2018-12-29 | High-voltage residue detection and discharge device for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822249270.2U CN210323183U (en) | 2018-12-29 | 2018-12-29 | High-voltage residue detection and discharge device for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323183U true CN210323183U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822249270.2U Active CN210323183U (en) | 2018-12-29 | 2018-12-29 | High-voltage residue detection and discharge device for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210323183U (en) |
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2018
- 2018-12-29 CN CN201822249270.2U patent/CN210323183U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: 213200 168 Huacheng Road, Jintan District, Changzhou, Jiangsu Patentee after: Dacheng Automobile Group Co.,Ltd. Patentee after: Jiangsu Jintan Dacheng Automobile Engineering Research Institute Co.,Ltd. Address before: 213200 168 Huacheng Road, Jintan District, Changzhou, Jiangsu Patentee before: DORCEN AUTOMOBILE Co.,Ltd. Patentee before: JIANGSU JINTAN DAMAI AUTOMOTIVE ENGINEERING RESEARCH INSTITUTE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |