CN114375141A - Heat dissipation air duct and energy storage device - Google Patents
Heat dissipation air duct and energy storage device Download PDFInfo
- Publication number
- CN114375141A CN114375141A CN202210059792.4A CN202210059792A CN114375141A CN 114375141 A CN114375141 A CN 114375141A CN 202210059792 A CN202210059792 A CN 202210059792A CN 114375141 A CN114375141 A CN 114375141A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 79
- 238000004146 energy storage Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of energy storage devices, in particular to a heat dissipation air channel and an energy storage device. The invention has the beneficial effects that: the cavity of the air duct body can be provided with a boosting module, an inversion module and an MPPT module, so that the boosting module, the inversion module and the MPPT module can have intervals between every two of the boosting module, the inversion module and the MPPT module, and the existence of the intervals can reduce the condition that the modules conduct heat mutually during working, thereby reducing the accumulation of heat; the fan is communicated with the space, and can conduct heat on the surfaces of the modules out to improve heat dissipation efficiency.
Description
Technical Field
The invention relates to the technical field of energy storage devices, in particular to a heat dissipation air duct and an energy storage device.
Background
In the related art, the energy storage device mainly refers to a device for storing electric energy, which can store hundreds of watt-hours of electric energy after being charged, and release the electric energy for the user to use when the user needs the electric energy.
During storage and release, the energy storage device may dissipate a significant amount of heat. The internal space of the energy storage device is narrow and small, and the heat dissipation efficiency is not high. This heat accumulates throughout the energy storage device over time, causing damage to the components of the energy storage device.
Disclosure of Invention
One of the objectives of the present invention is to provide a heat dissipation air duct to reduce the heat accumulation and improve the heat dissipation efficiency.
One aspect of the invention provides a heat dissipation air duct, which comprises an air duct body, a boosting module, an inversion module, an MPPT module and a heat dissipation assembly, wherein the air duct body is provided with a cavity for accommodating the boosting module, the inversion module and the MPPT module, the boosting module, the inversion module and the MPPT module are arranged at intervals, the heat dissipation assembly comprises a fan, and the fan is communicated with the intervals.
In the above technical solution, the air duct body includes a bottom plate and an upper frame, two sides of the bottom plate are respectively connected with two sides of the upper frame to form the cavity, a front end of the bottom plate and a front end of the upper frame define an air inlet, a rear end of the bottom plate and a rear end of the upper frame define an air outlet, the air inlet and the air outlet are both communicated with the space, and the fan is communicated with the space through the air inlet or the air outlet.
In the above technical scheme, the contravariant module set up in the bottom plate, the MPPT module with the module of stepping up all set up in the upper ledge, the MPPT module with the contravariant module forms first interval, the module of stepping up with the contravariant module forms the second interval, the MPPT module with the module of stepping up is followed form the third interval in the extending direction of upper ledge, first interval the second interval with the third interval intercommunication.
In the above technical solution, the heat dissipation assembly includes a first heat dissipation fin disposed on the inverter module, and the first heat dissipation fin extends along a direction in which the bottom plate extends.
In the above technical solution, the boost module is closer to the air inlet than the MPPT module.
In the above technical solution, the heat dissipation assembly includes a second heat dissipation fin disposed on the upper frame, and the second heat dissipation fin is disposed in the third space and extends in a direction perpendicular to the extension direction of the upper frame.
In the above technical solution, the heat dissipation assembly includes a third heat dissipation fin disposed on the upper frame, and the third heat dissipation fin is disposed near the MPPT module and extends along a direction in which the upper frame extends.
In the above technical solution, the fan includes a first fan and a second fan, the first fan is communicated with the air inlet, and the second fan is communicated with the air outlet.
In the above technical solution, the upper frame includes a top plate and connecting plates disposed at two sides of the top plate, and the connecting plates at two sides are respectively connected with two sides of the top plate to form the cavity.
Another aspect of the present invention provides an energy storage device, including a housing and the heat dissipation air duct according to the above technical solution, wherein a first heat dissipation hole is disposed at a front end of the housing, a second heat dissipation hole is disposed at a rear end of the housing, the air duct body is disposed in the housing, and the gap is communicated with the first heat dissipation hole and the second heat dissipation hole.
Compared with the prior art, the heat dissipation air duct has the beneficial effects that: the cavity of the air duct body can be provided with a boosting module, an inversion module and an MPPT module, so that the boosting module, the inversion module and the MPPT module can have intervals between every two of the boosting module, the inversion module and the MPPT module, and the existence of the intervals can reduce the condition that the modules conduct heat mutually during working, thereby reducing the accumulation of heat; the fan is communicated with the space, and can conduct heat on the surfaces of the modules out to improve heat dissipation efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation air duct according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the heat dissipation air duct of the embodiment shown in FIG. 1;
FIG. 3 is a schematic front view of a heat dissipation air duct according to an embodiment of the present invention;
FIG. 4 is a schematic rear view of a heat dissipation air duct according to an embodiment of the present invention;
in the figure, 1, an air duct body; 11. an air inlet; 12. an air outlet; 111. a top plate; 112. a base plate;
2. a boost module;
3. an inversion module;
4. an MPPT module;
51. a first fan; 52. a second fan; 531. a first heat sink; 532. a second heat sink; 533. and a third heat sink.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, directional descriptions such as directions or positional relationships indicated above, below, front, rear, left, right, etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be understood that the term "MPPT module" is used in the present invention, and the term "MPPT module" is called a "Maximum Power Point Tracking" (Maximum Power Point Tracking) module, and is capable of detecting the generated voltage of the solar panel in real time and Tracking the Maximum voltage current value, so that the system charges the storage battery with the Maximum Power output.
As shown in fig. 1 and 2, a heat dissipation air duct according to a preferred embodiment of the present invention includes an air duct body 1, a boost module 2, an inverter module 3, an MPPT module 4, and a heat dissipation assembly, where the air duct body 1 has a cavity for accommodating the boost module 2, the inverter module 3, and the MPPT module 4, the boost module 2, the inverter module 3, and the MPPT module 4 have a gap therebetween, the heat dissipation assembly includes a fan, and the fan is communicated with the gap.
The cavity of the air duct body 1 can be provided with a boosting module 2, an inversion module 3 and an MPPT module 4, so that the three modules can have intervals between each other, and the existence of the intervals can reduce the condition that the modules conduct heat mutually during working, thereby reducing the accumulation of heat; the fan is communicated with the space, and can conduct heat on the surfaces of the modules out to improve heat dissipation efficiency.
Further, the air duct body 1 includes a bottom plate 112 and an upper frame, two sides of the bottom plate 112 and two sides of the upper frame are respectively connected to form a cavity, the front end of the bottom plate 112 and the front end of the upper frame enclose an air inlet 11, the rear end of the bottom plate 112 and the rear end of the upper frame enclose an air outlet 12, the air inlet 11 and the air outlet 12 are both communicated with a space, and the fan is communicated with the space through the air inlet 11 or the air outlet 12.
It can be understood that, the both sides of bottom plate 112 and the both sides of upper ledge meet respectively, can form the cavity, make on the one hand boost module 2, contravariant module 3 and MPPT module 4 can be through setting up on bottom plate 112 or upper ledge for the interval has between above-mentioned three two liang, with the condition of the mutual conduction heat of during the reduction these modules work, thereby reduces thermal heap. The air outlet 12 defined by the rear end of the bottom plate 112 and the rear end of the upper frame can be used for guiding air after heat exchange with the modules out of the air outlet 12, and meanwhile, new air can be supplemented through the air inlet 11, so that the heat dissipation efficiency of the invention is improved. The fan is communicated with the space through the air inlet 11 or the air outlet 12, so that the fan can be prevented from being arranged in the air channel, the volume of the cavity is not occupied by the fan, and the heat dissipation efficiency in the cavity is improved.
Further, as shown in fig. 2, the inverter module 3 is disposed on the bottom plate 112, the MPPT module 4 and the boost module 2 are disposed on the upper frame, the MPPT module 4 and the inverter module 3 form a first space, the boost module 2 and the inverter module 3 form a second space, the MPPT module 4 and the boost module 2 form a third space along the extending direction of the upper frame, and the first space, the second space and the third space are communicated.
It can be understood that the inverter module 3, which is the largest and heaviest module among the three modules, is disposed on the bottom plate 112, so that the center of gravity of the whole module is lowered, and the stability of the module is improved. MPPT module 4 is lighter with the quality of boost module 2, and the volume is less, sets up and can not produce too big downward pulling force to the upper ledge in the upper ledge. The first interval and the second interval are arranged to facilitate the fan to guide heat generated by the boosting module 2, the inversion module 3 and the MPPT module 4 to the air outlet 12, so that the heat dissipation efficiency is improved. MPPT module 4 forms the third interval with boost module 2 along the extending direction of upper ledge, and the existence of third interval can avoid the fan directly to lead boost module 2 completely with the heat that MPPT module 4 produced, perhaps avoids the fan directly to lead MPPT module 4 completely with the heat that boost module 2 produced to reduce thermal pile up. The first space, the second space and the third space are communicated, so that when the spaces are communicated with the air inlet 11 and the air outlet 12, heat generated by the spaces and the air inlet 11 can be led out from the air outlet 12.
Further, as shown in fig. 3, the heat dissipation assembly includes a first heat dissipation fin 531 disposed on the inverter module 3, and the first heat dissipation fin 531 extends along a direction in which the bottom plate 112 extends.
It can be understood that the first heat sink 531 may absorb heat generated from the inverter module 3, thereby reducing heat accumulation on the inverter module 3. The first heat sink 531 extends along the extending direction of the bottom plate 112, which is beneficial for the fan to guide the heat on the first heat sink 531 to the air outlet 12, thereby improving the heat dissipation efficiency.
Further, as shown in fig. 2, the boost module 2 is closer to the air inlet 11 than the MPPT module 4.
It will be appreciated that boost module 2 is smaller in size than MPPT module 4 and, accordingly, generates less heat during operation. The boost module 2 is closer to the air inlet 11 than the MPPT module 4, and the heat generated by the boost module will have less influence even if the heat is guided to the MPPT module 4 by the fan. Set up boost module 2 and be close to air intake 11 than MPPT module 4, be favorable to the part overall arrangement rationalization in the cavity, can reduce thermal pile up to radiating efficiency is improved.
As shown in fig. 2, further, to reduce the influence of the heat generated by the boost module 2 on the MPPT module 4, the heat dissipation assembly includes a second heat dissipation fin 532 disposed in the upper frame, and the second heat dissipation fin is disposed in the third space and extends in a direction perpendicular to the extension direction of the upper frame.
It can be understood that the second heat sink 532 is disposed in the third space, so that the fan can direct the heat generated by the boost module 2 to the second heat sink 532, the heat absorption efficiency of the second heat sink 532 can be improved, and the heat accumulation at the boost module 2 can be avoided. Meanwhile, the second cooling fins 532 extend in the direction perpendicular to the extension direction of the upper frame, so that heat from the booster module 2 is absorbed and shielded by the second cooling fins 532, and the heat cannot directly act on the MPPT module 4 arranged on the upper frame, thereby reducing the condition of heat accumulation on the MPPT module 4.
Further, as shown in fig. 4, the heat dissipation assembly includes a third heat dissipation fin 533 disposed on the upper frame, where the third heat dissipation fin 533 is disposed near the MPPT module 4 and extends along the extending direction of the upper frame.
Specifically, the third cooling fin 533 may absorb heat generated by the MPPT module 4, so as to reduce the heat accumulation on the MPPT module 4. The first heat sink 531 extends along the extending direction of the bottom plate 112, which is beneficial for the fan to guide the heat on the first heat sink 531 to the air outlet 12, thereby improving the heat dissipation efficiency.
Further, in order to improve the heat dissipation efficiency, as shown in fig. 1 to 4, a first fan 51 and a second fan 52 may be provided, the first fan 51 is communicated with the air inlet 11, and the second fan 52 is communicated with the air outlet 12.
In one embodiment, the first fan 51 and the second fan 52 are rotated in the same direction, so that the second fan 52 can guide the heat generated by the boost module 2, the inverter module 3 and the MPPT module 4 out of the cavity, and the first fan 51 replenishes new air into the cavity. The heat is discharged and new air is introduced in time, so that the heat dissipation efficiency of the invention can be improved.
In one embodiment, the upper frame includes a top plate 111 and connecting plates disposed at two sides of the top plate 111, and the connecting plates at two sides are respectively connected to two sides of the top plate 111 to form a cavity.
It can be understood that the connecting plates can increase the space between the top plate 111 and the bottom plate 112, so as to increase the height of the cavity, and meanwhile, the top plate 111, the connecting plates on two sides of the top plate 111, and the bottom plate 112 can enclose a relatively closed cavity, so that heat can only be guided to the air outlet 12 by the air coming from the air inlet 11, and the heat dissipation efficiency is improved.
Another aspect of the present invention provides an energy storage device, which includes a housing and the heat dissipation air duct as described in the above embodiments, wherein the front end of the housing is provided with a first heat dissipation hole, the rear end of the housing is provided with a second heat dissipation hole, and the air duct body 1 is disposed in the housing and is communicated with the first heat dissipation hole and the second heat dissipation hole at intervals.
It can be understood that, by adopting the heat dissipation air duct of the above embodiment, the energy storage device has the beneficial effects of the heat dissipation air duct of the above embodiment, and the details are not repeated herein. In addition, the cavity of wind channel body 1 can supply new air through first louvre to the heat that produces the during operation of module 2, contravariant module 3 and MPPT module 4 with stepping up is derived from air outlet 12 through the second louvre, in order to realize the radiating effect to above-mentioned three.
In one embodiment, the working process of the invention is as follows: the boosting module 2, the inverter module 3 and the MPPT module 4 work to generate heat, the second fan 52 at the air outlet 12 rotates to lead out the heat generated by the three, and the first fan 51 at the air inlet 11 rotates to supplement new air into the cavity.
To sum up, the embodiment of the present invention provides a heat dissipation air duct, wherein a cavity of an air duct body 1 may be provided with a boost module 2, an inverter module 3 and an MPPT module 4, so that the three modules may have a gap therebetween, and the existence of the gap can reduce the condition of heat conduction between the modules during operation, thereby reducing the accumulation of heat; the fan is communicated with the space, and can conduct heat on the surfaces of the modules out to improve heat dissipation efficiency.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a heat dissipation wind channel, its characterized in that, includes wind channel body, boost module, contravariant module, MPPT module and radiator unit, the wind channel body has and holds boost module contravariant module with the cavity of MPPT module, boost module contravariant module with the MPPT module has the interval between two liang, radiator unit includes the fan, the fan with the interval intercommunication.
2. The heat dissipation air duct according to claim 1, wherein the air duct body includes a bottom plate and an upper frame, two sides of the bottom plate and two sides of the upper frame are respectively connected to form the cavity, a front end of the bottom plate and a front end of the upper frame define an air inlet, a rear end of the bottom plate and a rear end of the upper frame define an air outlet, the air inlet and the air outlet are both communicated with the space, and the fan is communicated with the space through the air inlet or the air outlet.
3. The heat dissipation air duct of claim 2, wherein the inverter module is disposed on the bottom plate, the MPPT module and the boost module are both disposed on the upper frame, the MPPT module and the inverter module form a first space, the boost module and the inverter module form a second space, the MPPT module and the boost module form a third space along an extending direction of the upper frame, and the first space, the second space and the third space are communicated with each other.
4. The heat dissipation air duct according to claim 3, wherein the heat dissipation assembly includes a first heat dissipation fin disposed on the inverter module, the first heat dissipation fin extending along a direction in which the bottom plate extends.
5. The cooling air duct of claim 3, wherein the boost module is closer to the air inlet than the MPPT module.
6. The heat dissipation air duct of claim 5, wherein the heat dissipation assembly comprises a second heat sink disposed in the upper frame, the second heat sink disposed in the third space and extending in a direction perpendicular to the extension of the upper frame.
7. The cooling air duct according to claim 3, wherein the heat dissipation assembly includes a third heat dissipation fin disposed on the top frame, the third heat dissipation fin being disposed adjacent to the MPPT module and extending along a direction in which the top frame extends.
8. The stack of any of claims 2 to 7, wherein the fan comprises a first fan and a second fan, the first fan being in communication with the air inlet and the second fan being in communication with the air outlet.
9. The heat dissipation air duct according to any one of claims 2 to 7, wherein the upper frame comprises a top plate and connecting plates disposed on two sides of the top plate, and the connecting plates on two sides are respectively connected with two sides of the top plate to form the cavity.
10. An energy storage device, comprising a housing and the heat dissipation air duct according to any one of claims 1 to 9, wherein the front end of the housing is provided with a first heat dissipation hole, the rear end of the housing is provided with a second heat dissipation hole, the air duct body is disposed in the housing, and the space is communicated with the first heat dissipation hole and the second heat dissipation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210059792.4A CN114375141A (en) | 2022-01-19 | 2022-01-19 | Heat dissipation air duct and energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210059792.4A CN114375141A (en) | 2022-01-19 | 2022-01-19 | Heat dissipation air duct and energy storage device |
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| Publication Number | Publication Date |
|---|---|
| CN114375141A true CN114375141A (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210059792.4A Pending CN114375141A (en) | 2022-01-19 | 2022-01-19 | Heat dissipation air duct and energy storage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012108398A1 (en) * | 2011-02-08 | 2012-08-16 | 三洋電機株式会社 | Power conditioner |
| JP2013078216A (en) * | 2011-09-30 | 2013-04-25 | Sanyo Electric Co Ltd | Electric power conversion device |
| CN103259421A (en) * | 2013-05-15 | 2013-08-21 | 清源科技（厦门）股份有限公司 | Photovoltaic inverter |
| CN110364330A (en) * | 2018-04-11 | 2019-10-22 | 江苏中天伯乐达变压器有限公司 | Inverter and transformer all-in-one machine |
| CN111245359A (en) * | 2020-01-20 | 2020-06-05 | 上海发电设备成套设计研究院有限责任公司 | Cascaded photovoltaic inverter unit module device and control method |
| CN112019068A (en) * | 2020-08-27 | 2020-12-01 | 上海沪工焊接集团股份有限公司 | Rectifier board power device layout method and system suitable for inverter welding machine |
| CN212588254U (en) * | 2020-04-28 | 2021-02-23 | 广东明阳电气股份有限公司 | Inversion and boosting integrated machine |
| CN112701933A (en) * | 2020-12-22 | 2021-04-23 | 科华恒盛股份有限公司 | Inverter device |
-
2022
- 2022-01-19 CN CN202210059792.4A patent/CN114375141A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012108398A1 (en) * | 2011-02-08 | 2012-08-16 | 三洋電機株式会社 | Power conditioner |
| JP2013078216A (en) * | 2011-09-30 | 2013-04-25 | Sanyo Electric Co Ltd | Electric power conversion device |
| CN103259421A (en) * | 2013-05-15 | 2013-08-21 | 清源科技（厦门）股份有限公司 | Photovoltaic inverter |
| CN110364330A (en) * | 2018-04-11 | 2019-10-22 | 江苏中天伯乐达变压器有限公司 | Inverter and transformer all-in-one machine |
| CN111245359A (en) * | 2020-01-20 | 2020-06-05 | 上海发电设备成套设计研究院有限责任公司 | Cascaded photovoltaic inverter unit module device and control method |
| CN212588254U (en) * | 2020-04-28 | 2021-02-23 | 广东明阳电气股份有限公司 | Inversion and boosting integrated machine |
| CN112019068A (en) * | 2020-08-27 | 2020-12-01 | 上海沪工焊接集团股份有限公司 | Rectifier board power device layout method and system suitable for inverter welding machine |
| CN112701933A (en) * | 2020-12-22 | 2021-04-23 | 科华恒盛股份有限公司 | Inverter device |
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