CN209513941U - High-voltage system offline detection device of electric automobile - Google Patents
High-voltage system offline detection device of electric automobile Download PDFInfo
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- CN209513941U CN209513941U CN201822178013.4U CN201822178013U CN209513941U CN 209513941 U CN209513941 U CN 209513941U CN 201822178013 U CN201822178013 U CN 201822178013U CN 209513941 U CN209513941 U CN 209513941U
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a detection device rolls off production line of electric automobile's high-voltage system relates to automobile testing technical field, and electric automobile includes power battery, high-voltage distribution part and a plurality of high-voltage part, and high-voltage distribution part is connected with power battery to for the power supply of a plurality of high-voltage power supply circuit, it has concatenated a high-voltage part in every high-voltage power supply circuit, detection device rolls off production line of high-voltage system includes: the system comprises a plurality of gating switches and a plurality of current detection circuits, wherein one gating switch and one current detection circuit are connected in series in a high-voltage power supply loop; the voltage detection circuits are connected between the anode and the cathode of one high-voltage power supply loop; the controller comprises a display signal output end and a plurality of detection signal input ends, and each detection signal input end is connected with a current detection circuit or a voltage detection circuit; and the input end of the display is connected with the display signal output end. The scheme improves the service life of the high-voltage part.
Description
Technical field
The utility model belongs to detection device technical field, more particularly, to a kind of offline inspection of high-pressure system of electric car
Survey device.
Background technique
Electric automobile high-voltage is one of the problem of concern the most in current electric car industry, along with integrated safely
Development, high-pressure system integrated level is higher and higher, vehicle lightweight, system integration, miniaturization while improve high-pressure system
Detection and malfunction elimination difficulty.High voltage parts will cause the fluctuation of busbar voltage, electric current in starting, shutdown, throw load,
Fluctuation may cause the damage of high voltage parts internal electronic component beyond scope of design or influence the normal work of components.
Utility model content
A kind of high-pressure system off-line test device for being designed to provide electric car of the utility model embodiment, thus
It solves to cause damage or the shadow of high voltage parts internal electronic component due to the fluctuation of the voltage or electric current of high-pressure system bus
The problem of ringing the normal use of components.
To achieve the goals above, the utility model provides a kind of high-pressure system off-line test device of electric car,
Wherein, the electric car includes power battery, high voltage power distribution component and multiple high pressure parts, the high voltage power distribution component with
The power battery connection, and be multiple high voltage supply loop power supplies, the height is serially connected in each high voltage supply circuit
Part is pressed, the high-pressure system off-line test device includes:
Multiple gating switches and multiple current detection circuits, a gating switch and a current detection circuit
It is series in a high voltage supply circuit；
Multiple voltage detecting circuits, each voltage detecting circuit be connected to a high voltage supply circuit anode with it is negative
Between pole；
Controller, including a display signal output end and multiple detection signal input parts, each detection signal are defeated
Enter end to connect with a current detection circuit or a voltage detecting circuit；
Display, the input terminal of the display are connect with the display signal output end.
Wherein, the display includes multiple display areas, each corresponding high voltage supply in the display area
Current detection circuit and voltage detection circuit in circuit.
Wherein, each current detection circuit includes an ammeter.
Wherein, each voltage detecting circuit includes a voltmeter.
Wherein, the controller is a single-chip microcontroller.
Wherein, the gating switch is relay；
Wherein, each relay includes control terminal, moved end and non-moving end, the control terminal and the controller
The connection of gate control signal output end, the moved end are connect with the current detection circuit, and the non-moving end is matched with the high pressure
Electrical components connection；
The controller exports gate control signal to corresponding gating switch by the gate control signal output end.
Wherein, the high-pressure system off-line test device by plug connector respectively with the high voltage power distribution component (9) and more
A high pressure part connection.
The above-mentioned technical proposal of the utility model at least has the following beneficial effects:
The utility model is by being connected to high voltage supply for high-pressure system off-line test device and returning when electric car is offline
Lu Zhong can accurately detect the bus of high-pressure system to realize the electrical characteristic detection for being automatically performed each high pressure branch road
Voltage and current, it is ensured that the fluctuation of voltage and current without departing from scope of design, avoids voltage or current fluctuation from causing high pressure
The damage of components internal electronic component, to find unqualified vehicle in advance, it is ensured that offline vehicle high-pressure system it is reliable
Property.
Detailed description of the invention
Fig. 1 is the first schematic diagram of the high-pressure system off-line test device of the electric car of the utility model embodiment；
Fig. 2 is the second schematic diagram of the high-pressure system off-line test device of the electric car of the utility model embodiment.
Description of symbols:
The first relay of K1-, the second relay of K2-, K3- third relay, the 4th relay of K4-, 1A- current detecting electricity
Road, 1B- current detection circuit, 1C- current detection circuit, 1D- current detection circuit, 2A- voltage detecting circuit, the inspection of 2B- voltage
Slowdown monitoring circuit, 2C- voltage detecting circuit, 2D- voltage detecting circuit, 3- controller, 4- display, 5- electric machine controller, 6- direct current/
Direct current transducer, 7- water-warming heater, 8- charger, 9- high voltage power distribution component, 10- power battery.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model embodiment will cause mother in starting, shutdown, throw load for high voltage parts in the prior art
Line voltage current fluctuation, causes electronic component to damage, and the problem of the normal work of rigid components, provides a kind of electronic vapour
The high-pressure system off-line test device of vehicle, realize to when electric car is offline to the voltage and current of high-pressure system bus
Surge detection, it is ensured that the reliability of offline vehicle high-pressure system.
As shown in Figure 1, an embodiment of the utility model provides a kind of high-pressure system off-line test dress of electric car
It sets, wherein illustrate that the electric car includes power battery 10, high voltage power distribution component 9 and multiple high pressure parts first, it is described
High voltage power distribution component 9 is connect with the power battery 10, and is multiple high voltage supply loop power supplies, in each high voltage supply circuit
It is serially connected with the high pressure part；The high-pressure system off-line test device includes:
Multiple gating switches and multiple current detection circuits, a gating switch and a current detection circuit
It is series in a high voltage supply circuit；
Multiple voltage detecting circuits, each voltage detecting circuit be connected to a high voltage supply circuit anode with it is negative
Between pole；
Controller 3, including a display signal output end and multiple detection signal input parts, each detection signal are defeated
Enter end to connect with a current detection circuit or a voltage detecting circuit；
Display 4, the input terminal of the display 4 are connect with the display signal output end.
In the utility model embodiment, the high pressure part includes: electric machine controller 5, DC-DC converter 6, hot-water heating
Heater 7 and charger 8；Wherein, high voltage supply circuit between the electric machine controller 5 and the high voltage power distribution component 9
Current detection circuit 1A and gating switch K1, and the anode wiring harness and negative line in the high voltage supply circuit are serially connected on anode wiring harness
Voltage detecting circuit 2A is serially connected between beam；High pressure between the DC-DC converter 6 and the high voltage power distribution component 9
Current detection circuit 1B and gating switch K2, and the electrode line in the high voltage supply circuit are serially connected on the anode wiring harness of current supply circuit
Voltage detecting circuit 2B is serially connected between beam and cathode harness；Between the water-warming heater 7 and the high voltage power distribution component 9
Current detection circuit 1C and gating switch K3 are serially connected on the anode wiring harness in high voltage supply circuit, and the high voltage supply circuit is just
Voltage detecting circuit 2C is serially connected between polar curve beam and cathode harness；Between the charger 8 and the high voltage power distribution component 9
Current detection circuit 1D and gating switch K4 are serially connected on the anode wiring harness in high voltage supply circuit, and the high voltage supply circuit is just
Voltage detecting circuit 2D is serially connected between polar curve beam and cathode harness.
The high-pressure system off-line test device of the utility model embodiment, by when the electric car is offline, by institute
It states high-pressure system off-line test device to be connected between the high voltage power distribution component 9 and each high pressure part, to the high pressure
System detects the fluctuation of the voltage and current of the bus of the high-pressure system in starting, shutdown, throw load, will examine
It surveys result to be compared with the fluctuation range being pre-designed, and comparison result is intuitively shown in the display, thus in determination
It, will be described when the fluctuation of the electric current and voltage of high-pressure system causes to damage or influence the normal work of high pressure part on high pressure part
Electric car moves to malfunction elimination area, guarantees the stability of high-pressure system when vehicle is offline.
Specifically, the display 4 is made of multiple LED light, and the display 4 includes multiple display areas, each
Current detection circuit and voltage detecting circuit in the corresponding high voltage supply circuit in the display area.That is: if a certain
Voltage fluctuation or current fluctuation in high voltage supply circuit exceed default fluctuation range, then failure is lighted in corresponding display area
Lamp.
Specifically, in the detection process, when the offline system detecting device of the high pressure is connected to the high voltage power distribution component 9
After between multiple high pressure parts, each gating switch closure can be successively controlled by operator, described in one
After gating switch closure, the controller 3 receives the electric current inspection in the high voltage supply circuit where the gating switch
The voltage detection signal that the current detection signal and the voltage detecting circuit that slowdown monitoring circuit is sent are sent, and by the current detecting
Signal is compared with predetermined current fluctuation range, by the voltage detection signal compared with predeterminated voltage fluctuation range, when the electricity
Stream detection signal is greater than the predetermined current fluctuation range or the voltage detection signal is greater than the predeterminated voltage fluctuation range
When, the display that the LED light red that Xiang Suoshu display 4 sends the display area LED corresponding with the high voltage supply circuit is lighted is believed
Number, so that the voltage fluctuation or current fluctuation of the current supply circuit for reminding operator currently to gate exceed scope of design, it need to be into one
Step investigation failure；When the current detection signal is less than the predetermined current fluctuation range or the voltage detection signal less than institute
When stating predeterminated voltage fluctuation range, Xiang Suoshu display 4 sends the LED of the display area LED corresponding with the high voltage supply circuit
The display signal that lamp green is lighted.
Specifically, in order to reduce the production cost of the high-pressure system off-line test device, in the utility model embodiment,
Preferably, each detection circuit includes an ammeter, and each detection circuit includes a voltage, and the control
Device 3 is a single-chip microcontroller.
In order to reduce the cost of labor in detection process, optimizing detection process, as shown in Fig. 2, the utility model embodiment
In, it is preferred that the gating switch is relay, wherein each relay includes control terminal, moved end and non-moving end,
The control terminal is connect with the gate control signal output end of the controller 3, and the moved end and the current detection circuit connect
It connects, the non-moving end is connect with the high voltage power distribution component 9；The controller 3 is defeated by the gate control signal output end
Gate control signal is to corresponding gating switch out.
When manufacturing the high-pressure system off-line test device, write-in control program, described first in the controller 3
Controlling program includes the current detecting letter controlled in each gating switch gating or disconnection, and each high voltage supply circuit of acquisition
Number and voltage detection signal.When detecting, the controller 3 executes the control program, and interval preset duration successively controls respectively
The gating switch closure, and after a gating switch closure, acquire the high pressure where the gating switch
Current detection signal and voltage detection signal in current supply circuit, when the gating switch gating currently gated is described default
After length, its disconnection is controlled, then, then controls next gating switch, until the current detecting in all high voltage supply circuits
After signal and voltage detection signal are collected, and output displays signal to the display 4 accordingly, the detection process knot
Beam.
Specifically, in order to improve the versatility of the high-pressure system off-line test device, in the utility model embodiment, institute
It states high-pressure system off-line test device and is connected respectively with the high voltage power distribution component 9 and multiple high pressure parts by plug connector
It connects.To make the high-pressure system off-line test device be suitable for different types of electric car by replacing the plug connector.
The utility model embodiment is by the way that when the electric car is offline, the high-pressure system off-line test device is connect
Enter the high-pressure system of the electric car, to be automatically performed the electrical characteristic detection of each high pressure branch road, realizes in high pressure zero
Part failure early period carries out diagnostic analysis, finds unqualified vehicle in advance, it is ensured that the reliability of offline vehicle high-pressure system.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with retouching.
Claims (7)
1. a kind of high-pressure system off-line test device of electric car, which is characterized in that the electric car includes power electric
Pond (10), high voltage power distribution component (9) and multiple high pressure parts, the high voltage power distribution component (9) and the power battery (10) are even
It connects, and is multiple high voltage supply loop power supplies, be serially connected with the high pressure part, the high pressure in each high voltage supply circuit
System off-line test device includes:
Multiple gating switches and multiple current detection circuits, a gating switch are connected with a current detection circuit
In a high voltage supply circuit；
Multiple voltage detecting circuits, each voltage detecting circuit be connected to a high voltage supply circuit positive electrode and negative electrode it
Between；
Controller (3), including a display signal output end and multiple detection signal input parts, each detection signal input
End is connect with a current detection circuit or a voltage detecting circuit；
Display (4), the input terminal of the display (4) are connect with the display signal output end.
2. the high-pressure system off-line test device of electric car according to claim 1, which is characterized in that the display
It (4) include multiple display areas, the current detection circuit in each corresponding high voltage supply circuit in the display area
And voltage detection circuit.
3. the high-pressure system off-line test device of electric car according to claim 1, which is characterized in that each electricity
Current detection circuit includes an ammeter.
4. the high-pressure system off-line test device of electric car according to claim 1, which is characterized in that each electricity
Pressing detection circuit includes a voltmeter.
5. the high-pressure system off-line test device of electric car according to claim 1, which is characterized in that the controller
It (3) is a single-chip microcontroller.
6. the high-pressure system off-line test device of electric car according to claim 1, which is characterized in that the gating is opened
Closing is relay；
Wherein, each relay includes control terminal, moved end and non-moving end, the control terminal and the controller (3)
The connection of gate control signal output end, the moved end are connect with the current detection circuit, and the non-moving end is matched with the high pressure
Electrical components (9) connection；
The controller (3) exports gate control signal to corresponding gating switch by the gate control signal output end.
7. the high-pressure system off-line test device of electric car according to claim 1, which is characterized in that the high pressure system
System off-line test device is connect with the high voltage power distribution component (9) and multiple high pressure parts respectively by plug connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822178013.4U CN209513941U (en) | 2018-12-24 | 2018-12-24 | High-voltage system offline detection device of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822178013.4U CN209513941U (en) | 2018-12-24 | 2018-12-24 | High-voltage system offline detection device of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209513941U true CN209513941U (en) | 2019-10-18 |
Family
ID=68196716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822178013.4U Active CN209513941U (en) | 2018-12-24 | 2018-12-24 | High-voltage system offline detection device of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209513941U (en) |
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2018
- 2018-12-24 CN CN201822178013.4U patent/CN209513941U/en active Active
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