CN217335109U - Power supply conversion device - Google Patents
Power supply conversion device Download PDFInfo
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- CN217335109U CN217335109U CN202123172725.3U CN202123172725U CN217335109U CN 217335109 U CN217335109 U CN 217335109U CN 202123172725 U CN202123172725 U CN 202123172725U CN 217335109 U CN217335109 U CN 217335109U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model relates to a this power conversion device, its converter incoming end and electric motor car battery socket adaptation can be connected the switch-on with electric motor car battery, and conversion device is equipped with modules such as DC module, contravariant module, control module, DC socket, AC socket, can trun into the output electricity of electric motor car battery into adaptation voltage output to AC socket and each DC socket, for other electronic equipment power supplies, converts electric motor car battery into outdoor power supply promptly and uses. Compared with a common outdoor power supply, the power conversion device is small and portable in size, can be carried about, and is particularly suitable for being used when the electric vehicle is driven to go out.
Description
Technical Field
The utility model relates to a power conversion device, it is specific is the device that converts electric motor car battery into outdoor power.
Background
Outdoor power supply is portable energy storage equipment of great capacity, and its inside has electric core, but the storage electric energy, and the power supply surface is equipped with multiple direct current delivery outlets such as USB, car cigar lighter usually, and some outdoor power supply still are equipped with 220 and press the alternating current delivery outlet, can supply power for small-size electrical apparatus such as cell-phone, computer.
The outdoor power supply is large in size and weight, can be conveniently carried above a vehicle when the vehicle is driven to travel, but is difficult to carry the outdoor power supply when the vehicle is driven to travel in some short-distance light-load traveling scenes, such as driving an electric bicycle or an electric motorcycle.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a power conversion device is provided, which can convert the battery of the electric vehicle into an outdoor power supply for use.
The utility model provides a technical scheme that its technical problem adopted is:
the power conversion device comprises a shell, wherein a DC module is arranged in the shell; the converter further comprises a converter access end and a DC jack, both of which are exposed from the housing;
the access end of the converter is matched with a power socket of the electric vehicle battery and is used for being connected and conducted with the power socket of the electric vehicle battery;
the DC module is respectively communicated with the converter access end and the DC jack and is used for converting the output direct current of the battery of the electric vehicle into adaptive direct current voltage and outputting the adaptive direct current voltage to the DC jack.
Further, a control module is arranged in the shell; the control module is connected with the DC module and used for acquiring and monitoring the input and/or output current of the DC module and controlling the input and/or output switch of the DC module according to the monitoring value.
Further, the control module is further connected with an input part, the input part is exposed out of the shell and used for receiving an input signal of the input part and controlling the switch of the input and/or output of the DC module according to the input signal.
Furthermore, the DC module is respectively communicated with the converter access end and the DC jack and is also used for connecting the DC jack with a charger, and the DC module converts the output electricity of the charger into adaptive voltage to be output to the converter access end so as to charge the battery of the electric vehicle.
Further, a charging module is arranged in the shell; one end of the charging module is connected with the converter access end, the other end of the charging module is used for connecting the commercial power through the AC cable, the commercial power is converted into adaptive voltage by the charging module, the adaptive voltage is output to the converter access end, and then the battery of the electric vehicle is charged.
The inverter module is positioned in the shell, and the AC socket is exposed out of the shell;
the inverter module is respectively communicated with the converter access end and the AC socket and is used for converting the output power of the electric vehicle battery into adaptive alternating current voltage and outputting the adaptive alternating current voltage to the AC socket;
the control module is communicated with the inversion module and is used for acquiring and monitoring the input and/or output current of the inversion module and controlling the input and/or output switch of the inversion module according to the monitoring value;
the control module is connected with the input part and is also used for receiving the input signal of the input part and controlling the switch of the input and/or output of the inversion module according to the input signal.
Furthermore, the electric quantity display module is also included and is exposed out of the shell; the control module is respectively connected with the converter access end and the electric quantity display module and used for acquiring the current voltage of the electric vehicle battery from the converter access end, calculating the residual electric quantity according to a preset algorithm and controlling the electric quantity display module to display the residual electric quantity.
Further, the DC socket includes a USB socket, a type-c socket, and/or an in-vehicle cigarette lighter socket.
Further, the voltage of the output direct current of the electromobile battery is 24-72V.
Furthermore, the power socket of the battery of the electric vehicle is a pin-shaped socket.
The utility model has the advantages that: the power conversion device is provided with modules such as a DC module, an inversion module, a control module, a DC socket, an AC socket and the like, can convert output electricity of the electric vehicle battery into adaptive voltage to be output to the AC socket and each DC socket, supplies power for other electronic equipment, and converts the electric vehicle battery into an outdoor power supply for use. Compared with a common outdoor power supply, the power conversion device is small and portable in size, can be carried about, and is particularly suitable for being used when the electric vehicle is driven to go out.
Drawings
Fig. 1 is a functional block diagram of an embodiment of the power conversion apparatus of the present invention;
fig. 2 is a schematic diagram of functional modules of another embodiment of the power conversion apparatus of the present invention;
reference numerals: an electric vehicle battery 1 and a power conversion device 2.
Detailed Description
The present invention is further described below with reference to the following drawings and examples, which may be typical:
the power conversion device comprises a shell, wherein a DC module is arranged in the shell; the converter further comprises a converter access end and a DC jack, both of which are exposed from the housing;
the switch-in end of the converter is matched with a power socket of the battery of the electric vehicle and is used for being connected and conducted with the power socket of the battery of the electric vehicle;
the DC module is respectively communicated with the converter access end and the DC jack and is used for converting the output direct current of the battery of the electric vehicle into adaptive direct current voltage and outputting the adaptive direct current voltage to the DC jack.
The utility model discloses a power conversion device can install electric motor car battery on, truns into electric motor car battery to the outdoor power source and uses.
Specifically, as shown in fig. 1 and 2, an electric vehicle battery 1 is provided in the left dashed line box, and a power conversion device 2 is provided in the right dashed line box.
The existing electric vehicle battery generally has an internal structure including a battery core, a battery management module and a power socket connected in sequence. The battery core is used for storing electric energy, and the battery management module (or BMS battery management system) is used for controlling the charging and discharging of the battery core, so that the overcharge and the overdischarge of the battery core are avoided, and the functions of automatic power-off protection when the output power exceeds a threshold value, automatic power-off protection when the temperature of the battery exceeds the threshold value and the like are also realized.
The power conversion device 2 has a housing for protecting each functional module inside.
The converter is provided with a converter access end, and the converter access end is matched with a power socket of the electric vehicle battery, so that the converter access end can be conveniently communicated with the electric vehicle battery. For example, the common electric vehicle batteries in the market at present include lead-acid batteries, lithium batteries, and the like, and the sockets of the batteries are generally delta-shaped sockets, and then the access end of the converter can be a cable with a delta-shaped plug. The converter access end can also be other adaptive access forms according to different types of electric vehicle battery sockets.
The plug of the power conversion device is inserted into the socket of the battery of the electric bicycle to connect the battery of the electric bicycle, and each functional module in the power conversion device is connected with the access end of the converter and further connected with the battery of the electric bicycle.
The standard voltage of the battery of the electric vehicle is different according to the specification of the electric vehicle, and the specifications of 24 volts, 36 volts, 48 volts, 60 volts, 64 volts, 72 volts and the like are common.
The power conversion device is provided with a DC module; the DC voltage step-down circuit is used for stepping down the output direct current of an electric vehicle battery into adaptive voltage and outputting the adaptive voltage to a DC socket, and typical DC sockets comprise a USB socket, a type-c socket, a vehicle-mounted cigarette lighter socket and the like.
The DC voltage reduction of the DC module may be implemented by a linear voltage reduction circuit, for example, a linear voltage regulator, a resistor, or the like. Preferably, the Buck voltage reducing circuit can be implemented by using a Buck voltage reducing circuit, for example, a Buck voltage reducing circuit of chip schemes such as an Intel core IP6536, a smart switch SW3516/SW3526, a south core SC8721A and the like can be used.
Above scheme, conversion equipment's converter incoming end is connected the back with the power socket of electric motor car battery, can regard as outdoor power source to use, and for example conversion equipment can change into 5 volts of direct current with electric motor car battery output electricity, exports to the USB interface, and then charges for the cell-phone, perhaps drives some LED table lamps work of 5 volt power supplies. The battery management module in the battery of the electric vehicle can realize the output power protection and the over-discharge protection of the battery. The conversion device is internally provided with no battery cell, the size of the conversion device can be very small and handy, and a user can carry the conversion device with him or her. According to the needs, can be at any time convenient convert electric bicycle battery into outdoor power and use.
At present, a DC transformation integrated circuit on the market, such as the chip schemes of the aforementioned english integrated core IP6536, south core SC8721A, etc., is generally integrated with a Buck circuit and a Boost circuit, i.e., both having DC Boost and DC Buck functions.
Therefore, preferably, the DC module is respectively connected to the converter access terminal and the DC jack, and is further used for connecting the charger to the DC jack, and the DC module converts the output power of the charger into an adaptive voltage, and outputs the adaptive voltage to the converter access terminal, so as to charge the battery of the electric vehicle.
After the battery of the electric vehicle is connected with the power supply conversion device, the battery of the electric vehicle can be connected to the DC socket by using the mobile phone charger, and the battery of the electric vehicle is charged by using the mobile phone charger. And the DC module is used for boosting the output power of the mobile phone charger to the adaptive charging voltage of the electric vehicle battery.
In addition, a charging module may be built in the power conversion device, for example, a charging module may be further provided in the housing; the utility model discloses a battery charger, including converter incoming end, charging module, AC cable, adapter, converter incoming end, the module one end that charges connects the converter incoming end, and the other end is used for switching on the commercial power through the AC cable, and the module that charges truns into the commercial power into adaptation voltage, exports to the converter incoming end, and then charges for the electric motor car battery.
As shown in fig. 2, the charging module steps down and rectifies the commercial power into adaptive direct current for charging the battery of the electric vehicle, and when the power conversion device is connected to the battery of the electric vehicle, the charging module is connected to the commercial power through an AC cable, so as to charge the battery of the electric vehicle. Typical implementations may be charger implementations that directly follow existing electric vehicle batteries, or employ existing other switching power supply schemes.
In order to further ensure the safety of electricity utilization, it is preferable that a control module is further arranged in the housing; the control module is connected with the DC module and used for acquiring and monitoring the input and/or output current of the DC module and controlling the input and/or output switch of the DC module according to the monitoring value.
Generally, the control module may be implemented by a single chip, for example, obtaining and monitoring an input and/or output current of the DC module, and may be implemented by setting a high-precision resistor on an input and/or output path of the DC module, detecting a voltage drop of the high-precision resistor, converting the voltage drop and the resistance into a current of the path after analog-to-digital conversion, comparing the current with a threshold, and if the current exceeds the threshold, sending a control signal to shut down the input and/or output path, thereby ensuring power consumption safety. According to the interface voltage and the input/output current, the input/output power can be further converted, and the control module can also monitor the power and carry out shutdown for protection.
Preferably, the control module may further be connected with an input part exposed from the housing, and the input part is used for receiving an input signal of the input part and controlling the switch of the input and/or output of the DC module according to the input signal.
The input part connected with the control module can be an operation button, a switch, a touch screen and the like, for example, when the control module receives a control signal of the input part to close the output of the USB socket, the control module sends out the control signal to cut off the power supply of the DC module to the USB socket.
The specific implementation mode of the control signal can be to control the on-off of the circuit in the modes of a switch tube, a relay and the like.
Those skilled in the art will appreciate that the control module may also be in the form of a Programmable Logic Controller (PLC), a Field Programmable Gate Array (FPGA), or the like to implement its functions.
More preferably, the inverter module is positioned in the shell, and the AC socket is exposed out of the shell;
the inverter module is respectively communicated with the converter access end and the AC socket and is used for converting the output power of the battery of the electric vehicle into adaptive alternating voltage and outputting the adaptive alternating voltage to the AC socket;
the control module is communicated with the inversion module and is used for acquiring and monitoring the input and/or output current of the inversion module by the control module and controlling the input and/or output switch of the inversion module according to the monitoring value;
the control module is connected with the input part and is also used for receiving the input signal of the input part and controlling the switch of the input and/or output of the inversion module according to the input signal.
The inverter module is used for converting the output direct current of the battery of the electric vehicle into alternating current for use, for example, 220V alternating current, and the small-sized electric appliance can be connected to an AC socket to obtain power supply. Similar to the DC module described above, the control module may also monitor and switch control the same.
In order to identify the residual capacity of the battery, a capacity display module is further included, and the capacity display module is exposed from the shell; the control module is respectively connected with the converter access end and the electric quantity display module and used for acquiring the current voltage of the electric vehicle battery from the converter access end, calculating the residual electric quantity according to a preset algorithm and controlling the electric quantity display module to display the residual electric quantity.
As shown in fig. 1, the control module obtains a current voltage of the electric vehicle battery from the converter access terminal, and further estimates a remaining capacity according to a preset formula, for example, for a nominal 48 v electric vehicle battery, a full charge voltage is usually 55 v, and a voltage when the electric energy is exhausted is usually 38 v, so that the voltage 38 to 55 v may be mapped and converted to 0 to 100% of the remaining capacity. The electric quantity display module can adopt various forms such as an indicator light and a nixie tube.
Claims (10)
1. The power conversion device comprises a shell, and is characterized in that a DC module is arranged in the shell; the converter further comprises a converter access end and a DC jack, both of which are exposed from the housing;
the access end of the converter is matched with a power socket of the electric vehicle battery and is used for being connected and conducted with the power socket of the electric vehicle battery;
the DC module is respectively communicated with the converter access end and the DC jack and is used for converting the output direct current of the battery of the electric vehicle into adaptive direct current voltage and outputting the adaptive direct current voltage to the DC jack.
2. The power conversion device of claim 1, wherein a control module is further disposed within the housing; the control module is connected with the DC module and used for acquiring and monitoring the input and/or output current of the DC module and controlling the input and/or output switch of the DC module according to the monitoring value.
3. The power conversion device of claim 2, wherein an input part is further connected to the control module, and the input part is exposed from the housing, and is used for receiving an input signal of the input part and controlling the switch of the input and/or output of the DC module according to the input signal.
4. The power conversion device of claim 2, wherein the DC module is connected to the converter input terminal and the DC jack, and is further configured for connecting a charger to the DC jack, and the DC module converts the output voltage of the charger into an adaptive voltage, and outputs the adaptive voltage to the converter input terminal, so as to charge the battery of the electric vehicle.
5. The power conversion device of claim 1, wherein a charging module is further disposed within the housing; the utility model discloses a battery charger, including converter incoming end, charging module, AC cable, adapter, converter incoming end, the module one end that charges connects the converter incoming end, and the other end is used for switching on the commercial power through the AC cable, and the module that charges truns into the commercial power into adaptation voltage, exports to the converter incoming end, and then charges for the electric motor car battery.
6. The power conversion device of claim 3, further comprising an inverter module located within the housing and an AC outlet exposed from the housing;
the inverter module is respectively communicated with the converter access end and the AC socket and is used for converting the output power of the electric vehicle battery into adaptive alternating current voltage and outputting the adaptive alternating current voltage to the AC socket;
the control module is communicated with the inversion module and is used for acquiring and monitoring the input and/or output current of the inversion module by the control module and controlling the input and/or output switch of the inversion module according to the monitoring value;
the control module is connected with the input part and is also used for receiving the input signal of the input part and controlling the switch of the input and/or output of the inversion module according to the input signal.
7. The power conversion device of claim 2, further comprising a power display module, wherein the power display module is exposed from the housing; the control module is respectively connected with the converter access end and the electric quantity display module and used for acquiring the current voltage of the electric vehicle battery from the converter access end, calculating the residual electric quantity according to a preset algorithm and controlling the electric quantity display module to display the residual electric quantity.
8. The power conversion device of claim 1, wherein the DC socket comprises a USB socket, a type-c socket, and/or a vehicle cigarette lighter socket.
9. The power conversion device according to claim 1, wherein the voltage of the output direct current of the battery of the electric vehicle is 24 to 72 volts.
10. The power conversion device of claim 1, wherein the power outlet of the battery of the electric vehicle is a delta outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123172725.3U CN217335109U (en) | 2021-12-16 | 2021-12-16 | Power supply conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123172725.3U CN217335109U (en) | 2021-12-16 | 2021-12-16 | Power supply conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217335109U true CN217335109U (en) | 2022-08-30 |
Family
ID=82990134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123172725.3U Active CN217335109U (en) | 2021-12-16 | 2021-12-16 | Power supply conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217335109U (en) |
-
2021
- 2021-12-16 CN CN202123172725.3U patent/CN217335109U/en active Active
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