CN216052003U - Energy feedback battery simulation device for vehicle-mounted charger test - Google Patents
Energy feedback battery simulation device for vehicle-mounted charger test Download PDFInfo
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- CN216052003U CN216052003U CN202122639356.8U CN202122639356U CN216052003U CN 216052003 U CN216052003 U CN 216052003U CN 202122639356 U CN202122639356 U CN 202122639356U CN 216052003 U CN216052003 U CN 216052003U
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Abstract
The utility model relates to an energy feedback battery simulation device for a vehicle-mounted charger test, which comprises a power supply, a metering ammeter, an upper computer control unit, a plurality of ACDC conversion units and a plurality of battery simulators, wherein the power supply is respectively and electrically connected with one ACDC conversion unit through the metering ammeter and then correspondingly electrically connected with one battery simulator, each battery simulator is electrically connected with a plurality of groups of vehicle-mounted chargers to simulate aging work, the input end of the upper computer control unit is connected with the metering ammeter, and the output end of the upper computer control unit is respectively connected with each charger and the battery simulator, wherein the battery simulator adopts a bidirectional direct current power supply with energy feedback. This application overall structure is compact simple, and greatly reduced vehicle-mounted machine's aging testing cost reaches energy-conserving effect simultaneously.
Description
Technical Field
The utility model relates to an energy feedback battery simulation device for a vehicle-mounted charger test.
Background
The vehicle-mounted charger is an accessory for conveniently charging digital products by a vehicle-mounted power supply at any time and any place, is conventionally used for a vehicle-mounted charger for supplying power to automobile storage batteries (12V for cars and 24V for trucks), is widely used in the field of lithium battery charging of various portable and handheld devices, and a power management IC selected by the vehicle charging scheme must meet the requirements at the same time: high voltage resistance, high efficiency, high reliability and low frequency. Above-mentioned on-vehicle machine that charges can have various different problems in the use, especially use the later stage performance to have unstability in the long term, the life-span descends, the security weakens the scheduling problem, consequently need carry out suitable ageing simulation test to it, but the test system of current on-vehicle machine that charges can not really simulate car operating mode enough, the reality operating mode can not be pressed close to the test effect, in addition, the test cost of on-vehicle machine that charges is owing to the constitution of analog power supply is not good, one drags many the ability relatively poor, make whole test cost input also great.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an energy feedback battery simulation device for a vehicle-mounted charger test, which is compact and simple in overall structure, greatly reduces the aging test cost of the vehicle-mounted charger, and achieves the energy-saving effect.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides an energy feedback battery simulation device for a vehicle-mounted charger test, which comprises a power supply, a metering ammeter, an upper computer control unit, a plurality of ACDC conversion units and a plurality of battery simulators, wherein the power supply is respectively and electrically connected with one ACDC conversion unit through the metering ammeter and then correspondingly electrically connected with one battery simulator, each battery simulator is electrically connected with a plurality of groups of vehicle-mounted chargers to simulate aging work, the input end of the upper computer control unit is connected with the metering ammeter, and the output end of the upper computer control unit is respectively connected with each charger and the battery simulator, wherein the battery simulator adopts a bidirectional direct current power supply with energy feedback.
Optionally, the battery simulator includes a PWM rectification circuit and an interleaved parallel DCDC conversion two-stage circuit, and the interleaved parallel DCDC conversion two-stage circuit adjusts an output voltage of the battery simulator according to a PWM signal output by the PWM rectification circuit.
Optionally, the two-stage interleaved parallel DCDC conversion circuit includes a three-phase full-bridge inverter unit, a bidirectional DCDC conversion unit, and a power frequency transformer, wherein the ACDC conversion unit outputs a dc voltage that is converted and boosted by the bidirectional DCDC conversion unit and then supplied to the three-phase full-bridge inverter unit, and the power frequency transformer controls a control signal sent to the bidirectional DCDC conversion unit according to the PWM signal, so as to control a voltage output amplitude of the bidirectional DCDC conversion unit.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the energy feedback battery simulator with the energy feedback function is adopted, so that the whole working output voltage is adjustable, the precision is high, different testing and detecting requirements can be met, the energy can be effectively saved, and the aging testing cost of a product is greatly reduced.
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Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural diagram of an energy feedback battery simulation apparatus for a vehicle-mounted charger test according to an embodiment of the utility model.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment provides an energy feedback battery simulation device for a vehicle-mounted charger test, which comprises a power supply (a three-phase power grid), a metering ammeter, an upper computer control unit, a plurality of ACDC conversion units and a plurality of battery simulators, wherein the power supply is electrically connected with an ACDC unit through the metering ammeter respectively and then correspondingly electrically connected with one battery simulator, each battery simulator is electrically connected with a plurality of groups of vehicle-mounted chargers to simulate aging work, the input end of the upper computer control unit is connected with the metering ammeter, the output end of the upper computer control unit is respectively connected with each charger and the battery simulator, and the battery simulator adopts a bidirectional direct current power supply with energy feedback.
The battery simulator comprises a PWM (pulse-width modulation) rectifying circuit and a staggered parallel DCDC conversion two-stage circuit, wherein the staggered parallel DCDC conversion two-stage circuit adjusts the output voltage of the battery simulator according to a PWM signal output by the PWM rectifying circuit.
The alternating parallel connection DCDC conversion two-stage circuit comprises a three-phase full-bridge inversion unit, a bidirectional DCDC conversion unit and a power frequency transformer, wherein direct current voltage output by the ACDC conversion unit is supplied to the three-phase full-bridge inversion unit after being converted and boosted by the bidirectional DCDC conversion unit, and the power frequency transformer controls a control signal sent out by the bidirectional DCDC conversion unit according to the PWM signal and is used for controlling a voltage output amplitude of the bidirectional DCDC conversion unit.
In this embodiment, the total number of the vehicle-mounted chargers for the aging test is 96, and the output parameter of a single vehicle-mounted charger is a direct-current voltage: 330V, output current: 20A, charging power: 6.6kW, the total power of the simulation apparatus of this embodiment is therefore at least 633 kW. Because the number of the vehicle-mounted chargers is large and the total power is large, a plurality of battery simulators are needed, and each battery simulator is connected with the respective vehicle-mounted charger to work independently, so that mutual influence cannot be caused; meanwhile, if each vehicle-mounted charger corresponds to one battery simulator, 96 batteries are needed, the number of power supplies is too large, and the manufacturing cost of the system is quite high, so that the factors are comprehensively considered, the 40kW battery simulator is designed to simultaneously carry 6 6.6kW vehicle-mounted chargers to operate in an aging mode, and the system needs 16 40kW battery simulators in total.
In summary, the energy feedback battery simulation device for the vehicle-mounted charger test adopts the battery simulator with the energy feedback function, has adjustable integral working output voltage and high precision, can meet different test and detection requirements, can effectively save energy, and greatly reduces the product aging test cost.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (3)
1. The energy feedback battery simulation device for the vehicle-mounted charger test is characterized by comprising a power supply, a metering ammeter, an upper computer control unit, a plurality of ACDC conversion units and a plurality of battery simulators, wherein the power supply is electrically connected with one ACDC conversion unit through the metering ammeter respectively and then is correspondingly and electrically connected with one battery simulator, each battery simulator is electrically connected with a plurality of groups of vehicle-mounted chargers to simulate aging work, the input end of the upper computer control unit is connected with the metering ammeter, the output end of the upper computer control unit is connected into each charger and each battery simulator respectively, and the battery simulators adopt bidirectional direct-current power supplies with energy feedback.
2. The energy feedback battery simulator for the vehicle-mounted charger test according to claim 1, wherein the battery simulator comprises a PWM rectification circuit and a cross-parallel DCDC conversion two-stage circuit, and the cross-parallel DCDC conversion two-stage circuit adjusts an output voltage of the battery simulator according to a PWM signal outputted from the PWM rectification circuit.
3. The energy feedback battery simulation device for the vehicle-mounted charger test according to claim 2, wherein the interleaved parallel DCDC conversion two-stage circuit comprises a three-phase full-bridge inverter unit, a bidirectional DCDC conversion unit, and a power frequency transformer, wherein the direct current voltage output by the ACDC conversion unit is converted and boosted by the bidirectional DCDC conversion unit and then supplied to the three-phase full-bridge inverter unit, and the power frequency transformer controls a control signal sent to the bidirectional DCDC conversion unit according to the PWM signal, so as to control a voltage output amplitude of the bidirectional DCDC conversion unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122639356.8U CN216052003U (en) | 2021-10-31 | 2021-10-31 | Energy feedback battery simulation device for vehicle-mounted charger test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122639356.8U CN216052003U (en) | 2021-10-31 | 2021-10-31 | Energy feedback battery simulation device for vehicle-mounted charger test |
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| Publication Number | Publication Date |
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| CN216052003U true CN216052003U (en) | 2022-03-15 |
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| CN202122639356.8U Active CN216052003U (en) | 2021-10-31 | 2021-10-31 | Energy feedback battery simulation device for vehicle-mounted charger test |
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2021
- 2021-10-31 CN CN202122639356.8U patent/CN216052003U/en active Active
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