CN210898608U - Outdoor portable power source that electric welding is high-power suitable for - Google Patents
Outdoor portable power source that electric welding is high-power suitable for Download PDFInfo
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- CN210898608U CN210898608U CN201922472927.6U CN201922472927U CN210898608U CN 210898608 U CN210898608 U CN 210898608U CN 201922472927 U CN201922472927 U CN 201922472927U CN 210898608 U CN210898608 U CN 210898608U
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Abstract
The utility model discloses an outdoor mobile power supply with high power for an electric welding machine, which comprises a battery pack unit, a battery management system unit, a rectification unit and an output unit; the battery pack unit is formed by connecting a plurality of batteries in series, and the voltage range of the batteries after being connected in series is 240V-380V; the battery management system unit is used for controlling the charging and discharging of the battery within a moderate range; the rectification unit comprises an inverter bridge circuit, a power frequency LC filter circuit and a control circuit; the battery pack unit is connected with the battery management system unit, the battery management system unit is connected with the rectifying unit, and the electric energy is rectified and then is output to a high-power electricity load through the output unit; and the control circuit of the rectifying unit is provided with an overcurrent protection module and a voltage-stabilizing regulating module, and the voltage-stabilizing regulating module controls the voltage of the inverter bridge circuit. The utility model discloses need not to carry out the secondary transform, reduced the rectification risk and consequently the equipment trouble problem that brings, improved the reliability of power.
Description
Technical Field
The utility model relates to a power supply unit especially relates to an outdoor portable power source that can satisfy electric welding high power user demand's electric welding high power is suitable for.
Background
The traditional alternating-current outdoor mobile power supply generally adopts a low-voltage energy storage battery unit, and outputs alternating current required by a load through rectification of an inverter. The main principle is as follows
The battery voltage is generally designed to be 12V, 24V or 48V, and is subjected to typical two-stage conversion, namely DC/DC conversion and DC/AC inversion. Firstly, inverting the low voltage of a battery into a high-frequency square wave by DC/DC conversion, boosting the voltage by a high-frequency boosting transformer, and then rectifying and filtering to obtain a stable V1 direct-current voltage; then, converting the DC/AC into a square wave inversion mode, and inverting the stable direct current voltage into square wave voltage with an effective value slightly larger than 220V; and then an alternating voltage with an effective value of 220V is obtained through LC power frequency filtering so as to drive a load.
The outdoor energy storage type alternating current and direct current mobile power supply generally uses low power within 100-5000 watts. For electric welding machine loads, the power is generally 5-20 kw, the load power is very high, and the energy storage type alternating current and direct current mobile power supply cannot be used.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide an electric welding is high-power outdoor portable power source who is suitable for, improved the reliability that high-power used.
The technical solution of the utility model is that:
an outdoor mobile power supply applicable to a high power of an electric welding machine comprises a battery pack unit, a battery management system unit, a rectifying unit and an output unit;
the battery pack unit is formed by connecting a plurality of batteries in series, and the voltage range of the batteries after being connected in series is 240V-380V;
the battery management system unit is used for controlling the charging and discharging of the battery within a moderate range;
the rectification unit comprises an inverter bridge circuit, a power frequency LC filter circuit and a control circuit;
the battery pack unit is connected with the battery management system unit, the battery management system unit is connected with the rectifying unit, and the electric energy is rectified and then is output to a high-power electricity load through the output unit; and the control circuit of the rectifying unit is provided with an overcurrent protection module and a voltage-stabilizing regulating module, and the voltage-stabilizing regulating module controls the voltage of the inverter bridge circuit.
The high-power outdoor mobile power supply for the electric welding machine is characterized in that the battery pack unit is formed by connecting eighty eight lithium battery energy storage units in series, the discharge voltage range of each lithium battery energy storage unit is 2.8-4.2V, and the output voltage of the battery pack unit is direct current 246-369.6V.
The high-power outdoor mobile power supply for the electric welding machine is characterized in that the discharge voltage range of each lithium battery energy storage unit is 3V-4.2V, and the output voltage of the battery pack unit is 264V-369.6V of direct current.
The outdoor mobile power supply with high power and applicability for the electric welding machine is characterized in that the output unit is a three-phase power supply socket device.
From the above description, the present invention can achieve the following effects in comparison with the prior art:
the utility model discloses an outdoor portable power source that electric welding high power was suitable for combines the performance characteristics of battery energy storage unit and high power equipment's power consumption requirement, through establishing ties a plurality of low voltage battery energy storage units and provides the high voltage direct current that corresponds, and rethread inverter bridge rectification processing obtains the required high voltage alternating current power supply of high power load to drive high power consumption load. The utility model discloses an ingenious design directly adopts the battery unit to establish ties and provides the high pressure, has reduced the high frequency contravariant processing that steps up among the prior art, need not to carry out the secondary transform to reduced the rectification risk and the equipment trouble problem that consequently brings, improved the reliability of power.
Drawings
Fig. 1 is the structure schematic diagram of the outdoor mobile power supply with high power suitable for the electric welding machine of the utility model.
Main element number description:
the utility model discloses:
1: the battery pack unit 11: a battery 2: battery management system unit
3: the rectifying unit 31: inverter bridge circuit 32: power frequency LC filter circuit
33: the control circuit 331: the voltage stabilization regulation module 332: overcurrent protection module
4: output unit
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
In a preferred embodiment of the outdoor mobile power supply suitable for the electric welding machine with high power of the present invention, please refer to fig. 1, which includes a battery unit 1, a battery management system unit 2, a rectification unit 3 and an output unit 4; the battery pack unit 1 is formed by connecting a plurality of batteries 11 in series, and the voltage range of the batteries 11 after being connected in series is 240V-380V; the battery management system unit 2 is used to control the charging and discharging of the battery 11 within a moderate range; the rectifying unit 3 comprises an inverter bridge circuit 31, a power frequency LC filter circuit 32 and a control circuit 33; the battery pack unit 1 is connected with the battery management system unit 2, the battery management system unit 2 is connected with the rectifying unit 3, and the electric energy is rectified and then output to a high-power electricity load through the output unit 4; the control circuit 33 of the rectifying unit 3 is provided with an overcurrent protection module 332 and a voltage stabilization regulating module 331, and the voltage stabilization regulating module 331 controls the voltage of the inverter bridge circuit 31. The utility model discloses an outdoor portable power source that electric welding high power was suitable for has formed the high voltage direct current power supply who satisfies the power consumption load voltage demand by a plurality of batteries 11 series connection, has obtained high-voltage alternating current through rectifier circuit's processing, thereby exports to load drive high power load operation through output unit 4. The battery management system is a BMS for improving the utilization rate of the battery 11 and preventing the overcharge and overdischarge of the battery 11.
As described above the utility model discloses an outdoor portable power source that electric welding machine high power was suitable for, in its preferred embodiment, battery pack unit 1 is established ties by eighty eight lithium cell energy storage units and is constituteed, and each lithium cell energy storage unit's discharge voltage range is 2.8V ~ 4.2V, battery pack unit 1's output voltage is direct current 246V ~ 369.6V.
The working voltage range of the common alternating current load is AC 180-260V, the rectifier voltage range is 255-368V, the high-low voltage difference ratio is 1.44, and the high-low voltage difference ratio is 1.5 and is very close to that under the condition that the lithium battery energy storage unit is only 2.8-4.2V. The direct current voltage of the lithium battery can be directly used for inverter bridge rectification without primary conversion. After the energy storage units of the lithium batteries are connected in series by 88 sections, the voltage range is DC 246V-369.6V, the required square wave 220V voltage can be directly output through the inverter bridge circuit 31, the work of an electric welding machine can be directly achieved, the power of the energy storage units can be higher, and the power output parameters of the energy storage units are mainly limited by a battery pack BMS.
As described above, in the preferred embodiment of the outdoor mobile power supply for the electric welding machine with high power, the discharge voltage range of each lithium battery energy storage unit is 3V-4.2V, and the output voltage of the battery unit 1 is 264V-369.6V.
Furthermore, the utility model discloses with the discharge voltage range control of lithium cell at 3V ~ 4.2V, then its high-low differential ratio is 1.4, is less than the high-low differential ratio 1.44 of demand end, can accord with the requirement of the high-low differential ratio of voltage of high power consumption load better.
As described above, in the preferred embodiment of the outdoor mobile power supply for the electric welding machine with high power, the output unit 4 is a three-phase power socket device. The utility model discloses a three phase current interface device is as output unit 4, can also adopt the interface device of other forms certainly, specifically can be according to the input end structure of consumer and decide.
The utility model discloses an outdoor portable power source that electric welding high power was suitable for combines the performance characteristics of battery energy storage unit and high power equipment's power consumption requirement, through establishing ties a plurality of low voltage battery energy storage units and provides the high voltage direct current that corresponds, and rethread inverter bridge rectification processing obtains the required high voltage alternating current power supply of high power load to drive high power consumption load. The utility model discloses an ingenious design directly adopts the battery unit to establish ties and provides the high pressure, has reduced the high frequency contravariant processing that steps up among the prior art, need not to carry out the secondary transform to reduced the rectification risk and the equipment trouble problem that consequently brings, improved the reliability of power.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (4)
1. An outdoor mobile power supply applicable to high power of an electric welding machine is characterized by comprising a battery pack unit, a battery management system unit, a rectification unit and an output unit;
the battery pack unit is formed by connecting a plurality of batteries in series, and the voltage range of the batteries after being connected in series is 240V-380V;
the battery management system unit is used for controlling the charging and discharging of the battery within a moderate range;
the rectification unit comprises an inverter bridge circuit, a power frequency LC filter circuit and a control circuit;
the battery pack unit is connected with the battery management system unit, the battery management system unit is connected with the rectifying unit, and the electric energy is rectified and then is output to a high-power electricity load through the output unit; and the control circuit of the rectifying unit is provided with an overcurrent protection module and a voltage-stabilizing regulating module, and the voltage-stabilizing regulating module controls the voltage of the inverter bridge circuit.
2. The high-power outdoor mobile power supply for the electric welding machine as claimed in claim 1, wherein the battery pack unit is composed of eighty eight lithium battery energy storage units connected in series, the discharge voltage range of each lithium battery energy storage unit is 2.8V-4.2V, and the output voltage of the battery pack unit is direct current 246V-369.6V.
3. The high-power outdoor mobile power supply for the electric welding machine as claimed in claim 2, wherein the discharge voltage range of each lithium battery energy storage unit is 3V-4.2V, and the output voltage of the battery pack unit is 264V-369.6V.
4. The high power outdoor mobile power supply of the electric welding machine as claimed in claim 3, wherein the output unit is a three-phase power supply socket device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922472927.6U CN210898608U (en) | 2019-12-31 | 2019-12-31 | Outdoor portable power source that electric welding is high-power suitable for |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922472927.6U CN210898608U (en) | 2019-12-31 | 2019-12-31 | Outdoor portable power source that electric welding is high-power suitable for |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210898608U true CN210898608U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922472927.6U Active CN210898608U (en) | 2019-12-31 | 2019-12-31 | Outdoor portable power source that electric welding is high-power suitable for |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210898608U (en) |
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2019
- 2019-12-31 CN CN201922472927.6U patent/CN210898608U/en active Active
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