CN108279339A - A kind of AC charging box test device - Google Patents
A kind of AC charging box test device Download PDFInfo
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- CN108279339A CN108279339A CN201710015300.0A CN201710015300A CN108279339A CN 108279339 A CN108279339 A CN 108279339A CN 201710015300 A CN201710015300 A CN 201710015300A CN 108279339 A CN108279339 A CN 108279339A
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000005611 electricity Effects 0.000 claims abstract description 153
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000013480 data collection Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 description 7
- 238000011990 functional testing Methods 0.000 description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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Abstract
The embodiment of the present invention provides a kind of AC charging box test device, is related to electronic technology field.The device includes voltage conversion unit, the first electricity accumulating unit, the second electricity accumulating unit, first switch unit, second switch unit and inverter unit；Wherein, the input terminal of voltage conversion unit is connect with the output end of AC charging box, output end is connect with the input terminal of first switch unit, the first output end and second output terminal of first switch unit are connected to the first input end and the second input terminal of second switch unit by the first electricity accumulating unit and the second electricity accumulating unit respectively, and the output end of second switch unit is connected to the input terminal of alternating current box by inverter unit.The embodiment of the present invention to AC charging box by the way of energy feedback due to carrying out burn-in test, so as to save energy consumption during carrying out burn-in test to AC charging box, the utilization rate for improving the energy greatly reduces test and the production cost of product.
Description
Technical field
The invention belongs to electronic technology field more particularly to a kind of AC charging box test devices.
Background technology
With popularizing for domestic electric vehicle, large quantities of charging equipment of electric automobile manufacturers are produced therewith.In order to true
Reliability of charging equipment of electric automobile during follow-up use is protected, charging equipment of electric automobile must be carried out before manufacture
Aging functional test, therefore, almost the manufacturer of each charging equipment of electric automobile is faced with charging equipment of electric automobile and exists
Aging functional test problem in production process.
However, currently, the aging work(for the charging equipment of electric automobile that the manufacturer of most charging equipment of electric automobile uses
Energy measuring technology is usually directly to use resistance or battery as load, to charging equipment of electric automobile progress aging function survey
Examination, test philosophy is shown referring to Fig. 1 and Fig. 2, and the capacity usage ratio of this test mode is low, and cost is higher.
Invention content
The embodiment of the present invention is designed to provide a kind of AC charging box test device, it is intended to solve above-mentioned existing electricity
The capacity usage ratio of the aging functional test technology of electrical automobile charging equipment is low, and the higher problem of cost.
The embodiment of the present invention is achieved in that a kind of AC charging box test device, including voltage conversion unit, first
Electricity accumulating unit, the second electricity accumulating unit, first switch unit, second switch unit and inverter unit；
Wherein, the input terminal of the voltage conversion unit is connect with the output end of the AC charging box, output end and institute
The input terminal connection of first switch unit is stated, the first output end and second output terminal of the first switch unit pass through institute respectively
It states the first electricity accumulating unit and the second electricity accumulating unit is connected to the first input end and the second input terminal of the second switch unit, institute
The output end for stating second switch unit is connected to the input terminal of the alternating current box by the inverter unit；
Wherein, when the voltage conversion unit is connected by the first switch unit with first electricity accumulating unit, with
Second electricity accumulating unit disconnects；The inverter unit is led by the second switch unit and second electricity accumulating unit
It is logical, when being disconnected with first electricity accumulating unit, turned by the alternating current that the voltage conversion unit exports the AC charging box
It is changed to direct current to charge for first electricity accumulating unit, be exported second electricity accumulating unit by the inverter unit straight
Galvanic electricity is converted to alternating current and provides operating voltage for the AC charging box；Alternatively,
When the voltage conversion unit is connected by the first switch unit with the second electricity accumulating unit, with the first electric power storage list
Member disconnects；The inverter unit is connected by the second switch unit with first electricity accumulating unit, with described second
When electricity accumulating unit disconnects, the alternating current that the AC charging box exports is converted into direct current as institute by the voltage conversion unit
The charging of the second electricity accumulating unit is stated, the direct current that first electricity accumulating unit exports is converted into exchange by the inverter unit
Electricity provides operating voltage for the AC charging box.
Based on the above technical solution, further include monitoring unit, the data collection terminal of the monitoring unit respectively with
The data output end of the AC charging box, the first electricity accumulating unit and the second electricity accumulating unit connects；
The monitoring unit, for monitoring the AC charging box, first electricity accumulating unit and the second electric power storage list in real time
The information about power of member.
Based on the above technical solution, further include third switch unit and mains supply unit, the third switch
The output end of unit is connect with the input terminal of the AC charging box, the first input end of the third switch unit and second defeated
Enter end to connect with the output end of the output end of the inverter unit and the mains supply respectively；
If the cycle electricity of the AC charging box, first electricity accumulating unit and second electricity accumulating unit consumes
It is complete, then the AC charging box is controlled by the third switch unit and be connected with the mains supply unit, with the inversion
Power supply unit disconnects, and the mains supply unit is made to provide operating voltage for the AC charging box.
Based on the above technical solution, if the AC charging box, first electricity accumulating unit and described second
The total electricity of electricity accumulating unit reaches preset power threshold, then by the third switch unit control the AC charging box with
The mains supply unit disconnects, and is connected with the inverter unit, and it is the AC charging to make the inverter unit
Box provides operating voltage.
Based on the above technical solution, the first switch unit include the first single-pole double-throw switch (SPDT), described first
The moved end of single-pole double-throw switch (SPDT) is the input terminal of the first switch unit, two non-moving ends of first single-pole double-throw switch (SPDT)
The first output end and second output terminal of the respectively described first switch unit.
Based on the above technical solution, the first switch unit includes the first switch and of two electrical interlocks
Two switches, the input terminal of wherein first switch and the second switch constitutes the input terminal of the first switch unit after connecing altogether, described
The output end of first switch and the second switch is respectively the first output end and second output terminal of the first switch unit.
Based on the above technical solution, the second switch unit include the second single-pole double-throw switch (SPDT), described second
The moved end of single-pole double-throw switch (SPDT) is the output end of the second switch unit, two non-moving ends of second single-pole double-throw switch (SPDT)
The first input end and the second input terminal of the respectively described second switch unit.
Based on the above technical solution, the second switch unit includes the third switch and the of two electrical interlocks
Four switches, the wherein output end of third switch and the 4th switch constitute the output end of the second switch unit after connecing altogether, described
Third switchs and the input terminal of the 4th switch is respectively the first input end and the second input terminal of the second switch unit.
Based on the above technical solution, the third switch unit includes third single-pole double-throw switch (SPDT), the third
The moved end of single-pole double-throw switch (SPDT) is the output end of the third switch unit, two non-moving ends of the third single-pole double-throw switch (SPDT)
The first input end and the second input terminal of the respectively described third switch unit.
Based on the above technical solution, the third switch unit includes the 5th switch and the of two electrical interlocks
Six switches, wherein the output end of the 5th switch and the 6th switch constitutes the output end of the third switch unit after connecing altogether, it is described
The input terminal of 5th switch and the 6th switch is respectively the first input end and the second input terminal of the third switch unit.
A kind of AC charging box test device provided in an embodiment of the present invention due to by the way of energy feedback to exchange
Charging box carries out burn-in test, so as to save energy consumption during carrying out burn-in test to AC charging box, carries
The high utilization rate of the energy, greatly reduces test and the production cost of product.
Description of the drawings
Fig. 1 is the test schematic of the aging functional test technology of the charging equipment of electric automobile used in the prior art；
Fig. 2 is that the test of the aging functional test technology of another charging equipment of electric automobile used in the prior art is former
Reason figure；
Fig. 3 is a kind of schematic block diagram of AC charging box test device provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic block diagram for AC charging test device that another embodiment of the present invention provides.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is a kind of schematic block diagram of AC charging box test device provided in an embodiment of the present invention, for the ease of saying
It is bright to illustrate only part related to the present embodiment.
It is shown in Figure 1, a kind of AC charging box test device provided in this embodiment, including voltage conversion unit 2,
One electricity accumulating unit 4, the second electricity accumulating unit 5, first switch unit 3, second switch unit 6 and inverter unit 7；
The input terminal of the voltage conversion unit 2 is connect with the output end of the AC charging box 1, output end and described the
The input terminal of one switch unit 3 connects, and the first output end and second output terminal of the first switch unit 3 are respectively by described
First electricity accumulating unit and the second electricity accumulating unit 5 are connected to the first input end and the second input terminal of the second switch unit 6, institute
The output end for stating second switch unit 6 is connected to the input terminal of the alternating current box by the inverter unit 7；
When the voltage conversion unit 2 is connected by the first switch unit 3 and first electricity accumulating unit 4, with institute
State the disconnection of the second electricity accumulating unit 5；The inverter unit 7 passes through the second switch unit 6 and second electricity accumulating unit 5
Conducting, when being disconnected with first electricity accumulating unit 4, the exchange that is exported the AC charging box 1 by the voltage conversion unit 2
Electricity is converted to direct current and charges for first electricity accumulating unit 4, by the inverter unit 7 by second electricity accumulating unit 5
It is that the AC charging box 1 provides operating voltage that the direct current of output, which is converted to alternating current,；Alternatively,
When the voltage conversion unit 2 by 3 and second electricity accumulating unit 5 of the first switch unit be connected, with first store
Electric unit 4 disconnects；The inverter unit 7 is connected by the second switch unit 6 and first electricity accumulating unit 4, with
When second electricity accumulating unit 5 disconnects, converted by the alternating current that the voltage conversion unit 2 exports the AC charging box 1
It is that second electricity accumulating unit 5 charges for direct current, is exported first electricity accumulating unit 4 by the inverter unit 7
It is that the AC charging box 1 provides operating voltage that direct current, which is converted to alternating current,.
Further, in the present embodiment, the voltage conversion unit 2 includes but not limited to AC-DC conversion chips.
Further, in the present embodiment, first electricity accumulating unit 4 and second electricity accumulating unit 5 include but unlimited
In lithium battery, accumulator etc..
Further, in the present embodiment, the inverter unit 7 includes but not limited to DC-AC conversion chips.
Further, in the present embodiment, 1 test device of AC charging box further includes third switch unit 8 and city
Electric power supply unit 9, the output end of the third switch unit 8 are connect with the input terminal of the AC charging box 1, and the third is opened
Close unit 8 first input end and the second input terminal respectively with the output end of the inverter unit 7 and the mains supply
Output end connection；
If the cycle electricity of the AC charging box 1, first electricity accumulating unit 4 and second electricity accumulating unit 5 is equal
It has been consumed that, then control the AC charging box 1 by the third switch unit 8 is connected with the mains supply unit 9, with institute
The disconnection of inverter unit 7 is stated, it is that the AC charging box 1 provides operating voltage to make the mains supply unit 9.
Further, in the present embodiment, if the AC charging box 1, first electricity accumulating unit 4 and described second
The total electricity of electricity accumulating unit 5 reaches preset power threshold, then controls the AC charging box by the third switch unit 8
1 disconnects with the mains supply unit 9, is connected with the inverter unit 7, and it is the friendship to make the inverter unit 7
Current charge box 1 provides operating voltage.
In the present embodiment, the preset power threshold is first electricity accumulating unit 4 or second electricity accumulating unit 5
Corresponding charge value when fully charged, by tester according to first electricity accumulating unit 4 or the storage of second electricity accumulating unit 5
Electricity is arranged.
In the present embodiment, the first switch unit 3 includes the first single-pole double-throw switch (SPDT) S1, first single-pole double throw
The moved end of switch S1 is the input terminal of the first switch unit 3, two non-moving ends point of the first single-pole double-throw switch (SPDT) S1
Not Wei the first switch unit 3 the first output end and second output terminal.
In the present embodiment, the second switch unit 6 includes the second single-pole double-throw switch (SPDT) S2, second single-pole double throw
The moved end of switch S2 is the output end of the second switch unit 6, two non-moving ends point of the second single-pole double-throw switch (SPDT) S2
Not Wei the second switch unit 6 first input end and the second input terminal.
In the present embodiment, the third switch unit 8 includes third single-pole double-throw switch (SPDT) S3, the third single-pole double throw
The moved end of switch S3 is the output end of the third switch unit 8, two non-moving ends point of the third single-pole double-throw switch (SPDT) S3
Not Wei the third switch unit 8 first input end and the second input terminal.
In the present embodiment, the first single-pole double-throw switch (SPDT) S1 is for controlling the first electricity accumulating unit 4 and the second electric power storage
The break-make of unit 5 and voltage conversion unit 2, the second single-pole double-throw switch (SPDT) S2 are stored for controlling the first electricity accumulating unit 4 and second
The break-make of electric unit 5 and inverter unit 7, third single-pole double-throw switch (SPDT) S3 is for controlling AC charging box 1 and alternating current and inverse
Break-make between variable power source.
In the present embodiment, since electricity accumulating unit cannot be carried out at the same time charge and discharge, in first electricity accumulating unit 4
In second electricity accumulating unit 5, if one of electricity accumulating unit charges as load, another electricity accumulating unit conduct
Power supply provides power supply to AC charging electricity box, and first electricity accumulating unit 4 and second electricity accumulating unit 5 can be alternately as negative
Load and power supply；Mains supply unit 9 is only used as the supplement of the energy after energy loss, if first electricity accumulating unit 4 and described the
After electricity accumulating unit is fully charged there are one in two electricity accumulating units 5, then the electricity in the electricity accumulating unit can recycle in whole system
It uses, until the electricity runs out of by being damaged in system, then the energy is supplemented by the mains supply unit 9.
Above as can be seen that a kind of AC charging box test device provided in this embodiment is due to the side using energy feedback
Formula carries out burn-in test to AC charging box, so as to save the energy during carrying out burn-in test to AC charging box
Consumption, improves the utilization rate of the energy, greatly reduces test and the production cost of product.
Fig. 4 is a kind of schematic block diagram for AC charging box test device that another embodiment of the present invention provides.In order to just
Part related to the present embodiment is illustrate only in explanation.
Shown in Figure 4, a kind of AC charging box test device provided in this embodiment includes voltage conversion unit 2,
One electricity accumulating unit 4, the second electricity accumulating unit 5, first switch unit 3, second switch unit 6 and inverter unit 7；
The input terminal of the voltage conversion unit 2 is connect with the output end of the AC charging box 1, output end and described the
The input terminal of one switch unit 3 connects, and the first output end and second output terminal of the first switch unit 3 are respectively by described
First electricity accumulating unit and the second electricity accumulating unit 5 are connected to the first input end and the second input terminal of the second switch unit 6, institute
The output end for stating second switch unit 6 is connected to the input terminal of the alternating current box by the inverter unit 7；
When the voltage conversion unit 2 is connected by the first switch unit 3 and first electricity accumulating unit 4, with institute
State the disconnection of the second electricity accumulating unit 5；The inverter unit 7 passes through the second switch unit 6 and second electricity accumulating unit 5
Conducting, when being disconnected with first electricity accumulating unit 4, the exchange that is exported the AC charging box 1 by the voltage conversion unit 2
Electricity is converted to direct current and charges for first electricity accumulating unit 4, by the inverter unit 7 by second electricity accumulating unit 5
It is that the AC charging box 1 provides operating voltage that the direct current of output, which is converted to alternating current,；Alternatively,
When the voltage conversion unit 2 by 3 and second electricity accumulating unit 5 of the first switch unit be connected, with first store
Electric unit 4 disconnects；The inverter unit 7 is connected by the second switch unit 6 and first electricity accumulating unit 4, with
When second electricity accumulating unit 5 disconnects, converted by the alternating current that the voltage conversion unit 2 exports the AC charging box 1
It is that second electricity accumulating unit 5 charges for direct current, is exported first electricity accumulating unit 4 by the inverter unit 7
It is that the AC charging box 1 provides operating voltage that direct current, which is converted to alternating current,.
Further, in the present embodiment, the voltage conversion unit 2 includes but not limited to AC-DC conversion chips.
Further, in the present embodiment, first electricity accumulating unit 4 and second electricity accumulating unit 5 include but unlimited
In lithium battery, accumulator etc..
Further, in the present embodiment, the inverter unit 7 includes but not limited to DC-AC conversion chips.
Further, in the present embodiment, 1 test device of AC charging box further includes monitoring unit, the monitoring
The data collection terminal of unit is exported with the data of the AC charging box 1, the first electricity accumulating unit 4 and the second electricity accumulating unit 5 respectively
End connection；
The monitoring unit, for monitoring the AC charging box 1, first electricity accumulating unit, 4 and second electric power storage in real time
The information about power of unit 5.
In the present embodiment, the charging process of electric vehicle can be constantly reproduced by the monitoring unit so that monitoring
Tester at unit can obtain the electricity data in charging process AC charging box 1 and electricity accumulating unit in real time, ensure
The true and accuracy of test data.
Further, in the present embodiment, 1 test device of AC charging box further includes third switch unit 8 and city
Electric power supply unit 9, the output end of the third switch unit 8 are connect with the input terminal of the AC charging box 1, and the third is opened
Close unit 8 first input end and the second input terminal respectively with the output end of the inverter unit 7 and the mains supply
Output end connection；
If the cycle electricity of the AC charging box 1, first electricity accumulating unit 4 and second electricity accumulating unit 5 is equal
It has been consumed that, then control the AC charging box 1 by the third switch unit 8 is connected with the mains supply unit 9, with institute
The disconnection of inverter unit 7 is stated, it is that the AC charging box 1 provides operating voltage to make the mains supply unit 9.
Further, in the present embodiment, if the AC charging box 1, first electricity accumulating unit 4 and described second
The total electricity of electricity accumulating unit 5 reaches preset power threshold, then controls the AC charging box by the third switch unit 8
1 disconnects with the mains supply unit 9, is connected with the inverter unit 7, and it is the friendship to make the inverter unit 7
Current charge box 1 provides operating voltage.
In the present embodiment, the preset power threshold is first electricity accumulating unit 4 or second electricity accumulating unit 5
Corresponding charge value when fully charged, by tester according to first electricity accumulating unit 4 or the storage of second electricity accumulating unit 5
Electricity is arranged.
In the present embodiment, the first switch unit 3 includes the first switch K1 and second switch of two electrical interlocks,
The wherein input terminal of first switch K1 and second switch K2 constitutes the input terminal of the first switch unit 3 after connecing altogether, and described
The output end of one switch K1 and the second switch K2 are respectively the first output end and the second output of the first switch unit 3
End.
In the present embodiment, the second switch unit 6 includes the switches of third switch K3 and the 4th of two electrical interlocks
K4, the wherein output end of third switch K3 and the 4th switch K4 constitute the output end of the second switch unit 6 after connecing altogether, described
The input terminal of third switch K3 and the 4th switch K4 are respectively the first input end of the second switch unit 6 and second defeated
Enter end.
In the present embodiment, the third switch unit 8 includes the switches of the 5th switch K5 and the 6th of two electrical interlocks
K6, wherein the output end of the 5th switch K5 and the 6th switch K6 constitutes the output end of the third switch unit 8 after connecing altogether, it is described
The input terminal of 5th switch K5 and the 6th switch K6 are respectively the first input end of the third switch unit 8 and second defeated
Enter end.
In the present embodiment, the first switch K1 and second switch K2 is respectively used to the first electricity accumulating unit 4 of control
With the break-make of the second electricity accumulating unit 5 and voltage conversion unit 2, the third switch K3 and the 4th switch K4 are respectively used to control
Make the break-make of the first electricity accumulating unit 4 and the second electricity accumulating unit 5 and inverter unit 7, the 5th switch K5 and the described 6th
Switch K6 is respectively used to control AC charging box 1 and the break-make between alternating current and inverter, wherein first switch K1 and second
Switch K2 cannot be closed at, first switch K1 and third switch K3 cannot be closed at, second switch K2 and the 4th switch K4
Cannot be closed at, the 5th switch K5 and the 6th switch K6 cannot be closed at, between these switches that cannot be closed at
It can be realized by electrical interlocks.
It should be noted that each switch unit realized above by electrical interlocks is only one that the present invention enumerates
Preferable implementation example, is not intended to restrict the invention, and can also be realized in other embodiments by the switch of other forms.
In the present embodiment, since electricity accumulating unit cannot be carried out at the same time charge and discharge, in first electricity accumulating unit 4
In second electricity accumulating unit 5, if one of electricity accumulating unit charges as load, another electricity accumulating unit conduct
Power supply provides power supply to AC charging electricity box, and first electricity accumulating unit 4 and second electricity accumulating unit 5 can be alternately as negative
Load and power supply；Mains supply unit 9 is only used as the supplement of the energy after energy loss, if first electricity accumulating unit 4 and described the
After electricity accumulating unit is fully charged there are one in two electricity accumulating units 5, then the electricity in the electricity accumulating unit can recycle in whole system
It uses, until the electricity runs out of by being damaged in system, then the energy is supplemented by the mains supply unit 9.
Thus, it will be seen that a kind of AC charging box test device provided in this embodiment using energy also due to returned
The mode of feedback carries out burn-in test to AC charging box, so as to during carrying out burn-in test to AC charging box
Energy consumption is saved, the utilization rate of the energy is improved, greatly reduces test and the production cost of product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of AC charging box test device, which is characterized in that stored including voltage conversion unit, the first electricity accumulating unit, second
Electric unit, first switch unit, second switch unit and inverter unit；
The input terminal of the voltage conversion unit is connect with the output end of the AC charging box, output end and the first switch
The input terminal of unit connects, and the first output end and second output terminal of the first switch unit pass through first electric power storage respectively
Unit and the second electricity accumulating unit are connected to the first input end and the second input terminal of the second switch unit, the second switch
The output end of unit is connected to the input terminal of the alternating current box by the inverter unit；
When the voltage conversion unit is connected by the first switch unit with first electricity accumulating unit, stored with described second
Electric unit disconnects；The inverter unit is connected by the second switch unit with second electricity accumulating unit, and described
When first electricity accumulating unit disconnects, the alternating current that the AC charging box exports is converted into direct current by the voltage conversion unit
It charges for first electricity accumulating unit, is converted to the direct current that second electricity accumulating unit exports by the inverter unit
Alternating current provides operating voltage for the AC charging box；Alternatively,
It is disconnected with the first electricity accumulating unit when the voltage conversion unit is connected by the first switch unit with the second electricity accumulating unit
It opens；The inverter unit is connected by the second switch unit with first electricity accumulating unit, with second electric power storage
When unit disconnects, the alternating current that the AC charging box export is converted into direct current as described the by the voltage conversion unit
Two electricity accumulating units charge, and the direct current that first electricity accumulating unit exports, which is converted to alternating current, by the inverter unit is
The AC charging box provides operating voltage.
2. AC charging box test device as described in claim 1, which is characterized in that further include monitoring unit, the monitoring
The data collection terminal of unit connects with the data output end of the AC charging box, the first electricity accumulating unit and the second electricity accumulating unit respectively
It connects；
The monitoring unit, for monitoring the AC charging box, first electricity accumulating unit and the second electricity accumulating unit in real time
Information about power.
3. AC charging box test device as described in claim 1, which is characterized in that further include third switch unit and alternating current
Power supply unit, the output end of the third switch unit are connect with the input terminal of the AC charging box, and the third switch is single
The first input end of member and the output with the output end and the mains supply of the inverter unit respectively of the second input terminal
End connection；
If the cycle electricity of the AC charging box, first electricity accumulating unit and second electricity accumulating unit has consumed,
It then controls the AC charging box by the third switch unit to be connected with the mains supply unit, with the inverter
Unit disconnects, and the mains supply unit is made to provide operating voltage for the AC charging box.
4. AC charging box test device as claimed in claim 3, which is characterized in that if the AC charging box, described
The total electricity of one electricity accumulating unit and second electricity accumulating unit reaches preset power threshold, then is switched by the third single
Member controls the AC charging box and is disconnected with the mains supply unit, is connected with the inverter unit, makes the inversion
Power supply unit provides operating voltage for the AC charging box.
5. AC charging box test device as described in claim 1, which is characterized in that the first switch unit includes first
Single-pole double-throw switch (SPDT), the moved end of first single-pole double-throw switch (SPDT) are the input terminal of the first switch unit, and described first is single
Two non-moving ends of double-pole double throw switch are respectively the first output end and second output terminal of the first switch unit.
6. AC charging electricity box test device as described in claim 1, which is characterized in that the first switch unit includes two
The first switch and the second switch of a electrical interlocks, the input terminal of wherein first switch and the second switch constitute described after connecing altogether
The output end of the input terminal of one switch unit, the first switch and the second switch is respectively the first switch unit
First output end and second output terminal.
7. AC charging box test device as described in claim 1, which is characterized in that the second switch unit includes second
Single-pole double-throw switch (SPDT), the moved end of second single-pole double-throw switch (SPDT) are the output end of the second switch unit, and described second is single
Two non-moving ends of double-pole double throw switch are respectively the first input end and the second input terminal of the second switch unit.
8. AC charging electricity box test device as described in claim 1, which is characterized in that the second switch unit includes two
The third switch and the 4th switch of a electrical interlocks, the wherein output end of third switch and the 4th switch constitute described the after connecing altogether
The input terminal of the output end of two switch units, the third switch and the 4th switch is respectively the second switch unit
First input end and the second input terminal.
9. AC charging box test device as claimed in claim 3, which is characterized in that the third switch unit includes third
Single-pole double-throw switch (SPDT), the moved end of the third single-pole double-throw switch (SPDT) are the output end of the third switch unit, the third list
Two non-moving ends of double-pole double throw switch are respectively the first input end and the second input terminal of the third switch unit.
10. AC charging electricity box test device as claimed in claim 3, which is characterized in that the third switch unit includes
The 5th of two electrical interlocks switchs to be switched with the 6th, wherein the 5th switchs after the output end switched with the 6th connects altogether described in composition
The input terminal of the output end of third switch unit, the 5th switch and the 6th switch is respectively the third switch unit
First input end and the second input terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710015300.0A CN108279339B (en) | 2017-01-06 | 2017-01-06 | Alternating-current charging box testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015300.0A CN108279339B (en) | 2017-01-06 | 2017-01-06 | Alternating-current charging box testing device |
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| CN108279339A true CN108279339A (en) | 2018-07-13 |
| CN108279339B CN108279339B (en) | 2024-04-26 |
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Citations (11)
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