CN208766239U - A kind of device for verifying charger durability test - Google Patents
A kind of device for verifying charger durability test Download PDFInfo
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- CN208766239U CN208766239U CN201820816816.5U CN201820816816U CN208766239U CN 208766239 U CN208766239 U CN 208766239U CN 201820816816 U CN201820816816 U CN 201820816816U CN 208766239 U CN208766239 U CN 208766239U
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- charger
- verifying
- control device
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Abstract
The utility model discloses a kind of devices for verifying charger durability test, including being connected to charger 3 on three-phase alternating-current supply, and it is connected to the circuit control device 2 between charger 3 and three-phase alternating-current supply for control circuit switch, circuit control device 2 is connected with pulse voltage 1.The utility model connects pulse voltage by the circuit control device of design to realize the control of voltage signal, and realize the energization power-off two states of charger, reach the test result of verifying charger durability, this kind of device circuit structure is simpler simultaneously, component usage amount is less, use cost is reduced, and high reliablity, energy consumption are less, can greatly improve the test efficiency of verifying charger.
Description
Technical field
The utility model charger technical field, specially a kind of device for verifying charger durability test.
Background technique
Charger is using power electronics semiconductor device, it to be made to be transformed to low-voltage direct electricity output High Level AC Voltage
A kind of equipment, in addition in view of other than its safety, it is contemplated that reliability.The method of verifying charger reliability is removed at present
Outside salt spray test, vibration test, thermocycling and electrical performance test, it is also necessary to verify the durability of charger, to examine
The service life of core charger.The durability of so-called charger is exactly that charger is allowed frequently to start before the deadline,
And it is able to satisfy certain number of starts, and existing charger durability test apparatus can use a large amount of component mostly, simultaneously
Energy consumption is big, and stability is poor, how to solve existing technical problem and designs a kind of novel durability test device
At relevant design personnel's problem to be solved.
Utility model content
The purpose of this utility model is to provide a kind of devices for verifying charger durability test, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of verifying charger durability test
Device, including it is connected to charger on three-phase alternating-current supply, and be connected between charger and three-phase alternating-current supply for controlling
The circuit control device of circuit switch processed, the circuit control device are connected with pulse voltage.
The circuit control device includes relay KA1, three-phase ac contactor KM1 and air switch QF1, it is described after
The contact output end of electric appliance KA1 is connect with the coil of three-phase ac contactor KM1, and the contact input terminal of the relay KA1 connects
The output end in air switch QF1 is connect, the input terminal of the air switch QF1 is connected to the output end of three-phase alternating-current supply, institute
The contact output end for stating three-phase ac contactor KM1 is connected to the input terminal of charger, the touching of the three-phase ac contactor KM1
Point input terminal is connected to the output end of air switch QF1.
Overvoltage protector is connected between the contact input terminal of the relay KA1 and the output end of air switch QF1
FU1。
The coils from parallel connection of coils of the relay KA1 has the diode D1 for reverse protection circuit.
As shown from the above technical solution, the utility model connects pulse voltage by the circuit control device of design to realize
The control of voltage signal may make relay KA1 to obtain electric and allow the contact closure of relay KA1 when pulse voltage high level
Forming circuit, while three-phase ac contactor KM1 obtains the electric contact closure for making three-phase ac contactor KM1, is connected to charging
Three-phase alternating-current supply access on machine, when pulse voltage low level, relay KA1 must not be electric, so that will not in entire circuit
There is three-phase alternating-current supply output, can realize the energization power-off two states of charger repeatedly, it is resistance to reach verifying charger
The test result of long property；Circuit structure can be made simpler by above verification mode, component usage amount is less, drop
Low use cost, and high reliablity, energy consumption are less, can greatly improve the test efficiency of verifying charger.
Detailed description of the invention
Fig. 1 is the utility model circuit diagram.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
A kind of device of verifying charger durability test as shown in Figure 1, including be connected on three-phase alternating-current supply and fill
Motor 3, and it is connected to the circuit control device 2 between charger 3 and three-phase alternating-current supply for control circuit switch, circuit
Control device 2 is connected with pulse voltage 1.
Further, the circuit control device 2 includes relay KA1, three-phase ac contactor KM1 and air switch
The contact output end of QF1, the relay KA1 are connect with the coil of three-phase ac contactor KM1, the touching of the relay KA1
Point input terminal is connected to the output end of air switch QF1, and the input terminal of the air switch QF1 is connected to three-phase alternating-current supply
The contact output end of output end, the three-phase ac contactor KM1 is connected to the input terminal of charger 3, and the three-phase alternating current connects
The contact input terminal of tentaculum KM1 is connected to the output end of air switch QF1, can be effective by the design of circuit control device 2
The original durability test device of reduction component usage quantity, while reducing component cost and more energy-efficient.
Further, over-voltage is connected between the contact input terminal of the relay KA1 and the output end of air switch QF1
Protector FU1 plays the role of the safety that device is improved to circuit overvoltage protection.
Further, the coils from parallel connection of coils of the relay KA1 has the diode D1 for reverse protection circuit, plays electricity
The reverse protection on road acts on, so that device obtains duplicate protection, practicability is higher.
The working principle of the utility model is as follows:
The device of this kind of verifying charger durability test is played by providing pulse voltage 1 for circuit control device 2 and is tested
Effect is demonstrate,proved, since voltage is impulse form, when there is voltage signal offer, the component in circuit control device will be connected,
So that three-phase alternating-current supply provides voltage to charger 3, charger 3 being capable of normal work after obtaining three-phase alternating current for meeting after connection
Make；Conversely, just being provided without voltage signal, circuit control device 2 when circuit control device 2 is not received by pulse voltage
In switching component just will disconnect, prevent three-phase alternating-current supply is from mentioning voltage to charger 3, charger 3 exists for meeting after disconnection
When not obtaining three-phase alternating current, will stop working, repeatedly after, charger 3 just will appear two kinds of energization and power-off
State realizes frequent starting, reaches the test objective of verifying 3 durability of charger.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (4)
1. a kind of device for verifying charger durability test, it is characterised in that: charge including being connected on three-phase alternating-current supply
Machine (3), and it is connected to the circuit control device (2) between charger (3) and three-phase alternating-current supply for control circuit switch,
The circuit control device (2) is connected with pulse voltage (1).
2. a kind of device for verifying charger durability test according to claim 1, it is characterised in that: the circuit control
Device (2) processed includes relay KA1, three-phase ac contactor KM1 and air switch QF1, and the contact of the relay KA1 is defeated
Outlet is connect with the coil of three-phase ac contactor KM1, and the contact input terminal of the relay KA1 is connected to air switch QF1
Output end, the input terminal of the air switch QF1 is connected to the output end of three-phase alternating-current supply, the three-phase ac contactor
The contact output end of KM1 is connected to the input terminal of charger (3), the contact input terminal connection of the three-phase ac contactor KM1
In the output end of air switch QF1.
3. a kind of device for verifying charger durability test according to claim 2, it is characterised in that: the relay
Overvoltage protector FU1 is connected between the contact input terminal of KA1 and the output end of air switch QF1.
4. a kind of device for verifying charger durability test according to claim 2, it is characterised in that: the relay
The coils from parallel connection of coils of KA1 has the diode D1 for reverse protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816816.5U CN208766239U (en) | 2018-05-25 | 2018-05-25 | A kind of device for verifying charger durability test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816816.5U CN208766239U (en) | 2018-05-25 | 2018-05-25 | A kind of device for verifying charger durability test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208766239U true CN208766239U (en) | 2019-04-19 |
Family
ID=66127389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820816816.5U Active CN208766239U (en) | 2018-05-25 | 2018-05-25 | A kind of device for verifying charger durability test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208766239U (en) |
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2018
- 2018-05-25 CN CN201820816816.5U patent/CN208766239U/en active Active
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