CN213846259U - Photovoltaic charging controller and charging equipment - Google Patents
Photovoltaic charging controller and charging equipment Download PDFInfo
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- CN213846259U CN213846259U CN202022161636.8U CN202022161636U CN213846259U CN 213846259 U CN213846259 U CN 213846259U CN 202022161636 U CN202022161636 U CN 202022161636U CN 213846259 U CN213846259 U CN 213846259U
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- heat dissipation
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model discloses a photovoltaic charging controller and charging equipment, wherein the photovoltaic charging controller comprises a shell component, a partition plate, a plurality of heating units and a heat dissipation component; the shell component is provided with a mounting cavity; the partition plate is arranged in the mounting cavity and divides the mounting cavity into a first heat dissipation cavity and a second heat dissipation cavity, a communication port is formed in the partition plate, and an air inlet and an air outlet are formed in the shell assembly; the plurality of heating units are respectively arranged in the first heat dissipation cavity and the second heat dissipation cavity; the heat dissipation assembly comprises a fan, and the fan is arranged on the partition plate; the fan is used for driving cold air flowing in from the air inlet to sequentially pass through the first heat dissipation cavity and the second heat dissipation cavity and be mixed with heat generated by the plurality of heating units to form hot air, and then the hot air flows to the air outlet to be dissipated. The utility model discloses improved photovoltaic charge controller's structure, promoted product heat dispersion, also promoted the packaging efficiency simultaneously, made things convenient for the dismouting maintenance, reduced the cost of manufacturing, still reduced the product volume, promoted product property ability.
Description
Technical Field
The utility model relates to a photovoltaic battery charging outfit technical field especially relates to a photovoltaic charge controller and battery charging outfit.
Background
With the continuous consumption of non-renewable energy sources such as petroleum, people gradually pay attention to renewable energy sources such as solar energy, and various photovoltaic Power generation devices are in use, wherein a photovoltaic MPPT (Maximum Power Point Tracking) charging controller is an important device for realizing photovoltaic charging.
The radiator of the existing photovoltaic charging controller is arranged outside the back plate of the case, so that the overall size is large, the radiating effect is poor, and the performance of the photovoltaic charging controller is influenced.
In view of this, how to improve the heat dissipation performance of the photovoltaic charge controller becomes an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a photovoltaic charge controller, which is capable of improving heat dissipation performance of the photovoltaic charge controller.
In order to achieve the above object, the utility model provides a photovoltaic charge controller, photovoltaic charge controller includes:
a housing assembly formed with a mounting cavity;
the partition plate is arranged in the mounting cavity and divides the mounting cavity into a first heat dissipation cavity and a second heat dissipation cavity, a communication port for communicating the first heat dissipation cavity with the second heat dissipation cavity is formed in the partition plate, and an air inlet communicated with the first heat dissipation cavity and an air outlet communicated with the second heat dissipation cavity are formed in the shell;
the heating units are respectively arranged in the first heat dissipation cavity and the second heat dissipation cavity; and
the heat dissipation assembly comprises a fan, and the fan is arranged on the partition plate;
the fan is used for driving cold air flowing in from the air inlet to sequentially pass through the first heat dissipation cavity and the second heat dissipation cavity and be mixed with heat generated by the heating units to form hot air and then flow to the air outlet to be dissipated.
In an embodiment, the heat dissipation assembly further includes a heat sink, and the heat sink is disposed in the second heat dissipation cavity and is configured to dissipate heat of the heat generating unit located in the second heat dissipation cavity.
In an embodiment, the heat sink includes heat dissipation fins, and the heat dissipation fins are installed in the second heat dissipation air duct and are disposed corresponding to the blowing side of the fan.
In an embodiment, the heat dissipation assembly further includes an air duct sheet, and the air duct sheet covers the fan and the heat dissipation fins and forms a heat dissipation air duct.
In one embodiment, the plurality of heat generating units comprise a driving assembly, the driving assembly comprises a driving plate, and the driving plate is installed in the second heat dissipation cavity;
the heat radiator is attached to the driving plate.
In an embodiment, an MOS tube is disposed on the driving board, and a heating surface of the MOS tube is attached to the heat sink.
In an embodiment, the housing assembly includes a box body having an opening at one end thereof and a back plate covering the opening, a routing opening for a signal input cable or a signal output cable connected to an external device to pass through is formed in a position of the back plate corresponding to the driving assembly, and a wiring cover plate is detachably covered on the routing opening.
In an embodiment, the plurality of heating units further include a display screen assembly and an inductor assembly, a display window is arranged on the box body, the display screen assembly is installed in the first heat dissipation cavity and exposed through the display window, and the inductor assembly is installed in the first heat dissipation cavity;
the driving assembly is connected with the display screen assembly through a first connecting wire, the driving assembly is connected with the inductance assembly through a second connecting wire, and a wiring hole for the first connecting wire and/or the second connecting wire to pass through is formed in the partition plate.
In one embodiment, an accommodating opening for accommodating the keys of the display screen assembly is formed in the box body at a position close to the display window;
the box body is provided with a protective film in an attached mode, the position, corresponding to the display window, of the protective film is made of transparent materials, and a convex hull for accommodating the pressing portion of the display screen assembly key is convexly arranged at the position, corresponding to the accommodating port, of the protective film.
In order to achieve the above object, the utility model also provides a charging device, charging device includes as above photovoltaic charge controller, photovoltaic charge controller includes:
a housing assembly formed with a mounting cavity;
the partition plate is arranged in the mounting cavity and divides the mounting cavity into a first heat dissipation cavity and a second heat dissipation cavity, a communication opening for communicating the first heat dissipation cavity with the second heat dissipation cavity is formed in the partition plate, and an air inlet communicated with the first heat dissipation cavity and an air outlet communicated with the second heat dissipation cavity are formed in the shell;
the heating units are respectively arranged in the first heat dissipation cavity and the second heat dissipation cavity; and
the heat dissipation assembly comprises a fan, and the fan is arranged on the partition plate;
the fan is used for driving cold air flowing in from the air inlet to sequentially pass through the first heat dissipation cavity and the second heat dissipation cavity and be mixed with heat generated by the heating units to form hot air and then flow to the air outlet to be dissipated.
The technical scheme of the utility model, because this photovoltaic charge controller includes housing assembly, the division board, a plurality of units and the radiator unit generate heat, the division board is located the installation intracavity and is separated the installation cavity for first heat dissipation chamber and second heat dissipation chamber, be equipped with the intercommunication mouth in first heat dissipation chamber of intercommunication and second heat dissipation chamber on the division board, housing assembly is last be equipped with the air intake of first heat dissipation chamber intercommunication and with the air outlet of second heat dissipation chamber intercommunication, a plurality of units of generating heat are installed respectively in first heat dissipation chamber and second heat dissipation intracavity, radiator unit includes the fan, the fan is installed on the division board, the fan is used for driving the cold air that flows in from the air intake to flow to the air outlet and spill out after forming the hot-air through first heat dissipation chamber and second heat dissipation chamber in proper order and with the heat mixture that a plurality of units of generating heat produced, thereby the heat dispersion of this photovoltaic charge controller has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the photovoltaic charge controller of the present invention;
fig. 2 is an exploded view of an embodiment of the photovoltaic charge controller of the present invention;
fig. 3 is an internal structure diagram of an embodiment of the photovoltaic charging controller of the present invention;
fig. 4 is a structural diagram of a driving assembly and a heat sink in an embodiment of the photovoltaic charging controller of the present invention;
fig. 5 is a schematic structural diagram of the housing assembly in an embodiment of the photovoltaic charging controller of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | ||
| 100 | |
410 | Fan with |
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| 200 | |
100a | |
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| 300 | |
| Air outlet | ||
| 400 | |
420 | |
||
| 430 | |
310 | |
||
| 311 | |
110 | |
||
| 120 | |
130 | |
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| 320 | |
330 | |
||
| | Display window | | Communication port | ||
| 111 | |
1111 | Convex |
||
| | Wiring port | 110b | Mounting hole |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
With the continuous consumption of non-renewable energy sources such as petroleum, people gradually pay attention to renewable energy sources such as solar energy, and various photovoltaic Power generation devices are in use, wherein a photovoltaic MPPT (Maximum Power Point Tracking) charging controller is an important device for realizing photovoltaic charging.
In an embodiment technology, the radiator of the photovoltaic charge controller is installed outside the back plate of the chassis, so that the overall size is large, the radiating effect is poor, and the performance of the photovoltaic charge controller is affected.
In order to promote photovoltaic charge controller's heat dispersion, the utility model provides a photovoltaic charge controller, especially photovoltaic MPPT charge controller, here is not limited.
Referring to fig. 1 to 3, in an embodiment of the present invention, the photovoltaic charging controller includes a housing assembly 100, a partition plate 200, a plurality of heat generating units 300, and a heat dissipating assembly 400, the partition plate 200 is disposed in the installation cavity and divides the installation cavity into a first heat dissipating cavity and a second heat dissipating cavity, the partition plate 200 is provided with a communication port 200a communicating the first heat dissipating cavity with the second heat dissipating cavity, the housing assembly 100 is provided with an air inlet 100a communicating with the first heat dissipating cavity and an air outlet 100b communicating with the second heat dissipating cavity, the plurality of heat generating units 300 are respectively installed in the first heat dissipating cavity and the second heat dissipating cavity, the heat dissipating assembly 400 includes a fan 410, the fan 410 is installed on the partition plate 200, the fan 410 is configured to drive cold air flowing in from the air inlet 100a to sequentially pass through the first heat dissipation chamber, the communication port 200a, and the second heat dissipation chamber, mix with heat generated by the plurality of heat generating units 300 to form hot air, and then flow to the air outlet 100b to be dissipated.
The housing assembly 100 may be made of plastic or metal, and the main body thereof may be an integrally formed chassis structure, or a box 110 structure formed by combining a plurality of components, which is not limited herein.
The material of the partition plate 200 may also be plastic or metal, and the like, but is not limited thereto. The partition plate 200 may be transversely installed inside the housing assembly 100 by means of screw connection or snap connection, etc., the fan 410 on the partition plate 200 may be disposed in the middle, one side of the partition plate may be provided with a communication port 200a communicating the first heat dissipation chamber and the second heat dissipation chamber, or the outer wall of the fan 410 is connected to the inner wall of the communication port 200a, the communication port 200a may be used as a passage communicating the first heat dissipation chamber and the second heat dissipation chamber, and simultaneously, the communication port may also provide an installation space for installing the fan 410, so that the fan 410 forms uniform air flow in the first heat dissipation chamber and the second heat dissipation chamber of the housing assembly 100, and the photovoltaic charging controller obtains more effective heat dissipation performance.
In this embodiment, the heating unit 300 may be an electrical component of the photovoltaic charging controller, and may be a driving board, an LCD screen, an inductor, a MOS transistor 311, and the like, which is not limited herein.
During production and assembly, the fan 410 can be installed on the partition plate 200 in a threaded connection mode or the like, then the partition plate 200 is installed and fixed in the installation cavity of the shell assembly 100 in a threaded connection mode, a clamping mode or a bonding mode or the like, then the plurality of heating units 300 can be sequentially installed on the corresponding positions of the heat dissipation substrates in the first heat dissipation cavity and the second heat dissipation cavity or directly installed on the corresponding positions of the shell assembly 100 in a threaded connection mode, a clamping mode or a bonding mode or the like, then the fan 410 and cables of the heating units 300 are connected, and finally the cover plate of the shell assembly 100 is covered through glue, screws or the like so as to complete the assembly of the whole photovoltaic charging controller.
It can be understood that, the utility model discloses a locating the division board 200 of this photovoltaic charge controller in the installation cavity and separating the installation cavity for first heat dissipation chamber and second heat dissipation chamber, be equipped with the intercommunication mouth 200a that communicates first heat dissipation chamber and second heat dissipation chamber on the division board 200, be equipped with on the casing with the air intake 100a of first heat dissipation chamber intercommunication and with the air outlet 100b of second heat dissipation chamber intercommunication, a plurality of units 300 that generate heat are installed respectively in first heat dissipation chamber and second heat dissipation chamber, radiator unit 400 includes fan 410, fan 410 installs on division board 200, fan 410 is used for driving the cold air that flows in from air intake 100a to flow to air outlet 100b and give out after forming the hot air through first heat dissipation chamber in proper order, intercommunication mouth 200a and second heat dissipation chamber and the heat mixture that produces with a plurality of units 300 that generate heat, thereby the heat dispersion of this photovoltaic charge controller has been promoted.
Referring to fig. 3 and 4, in order to further improve the heat dissipation performance of the photovoltaic charge controller, in an embodiment, the heat dissipation assembly 400 may further include a heat sink 420, and the heat sink 420 is disposed in the second heat dissipation cavity and is used for dissipating heat of the heat generating unit 300 located in the second heat dissipation cavity.
In the present embodiment, referring mainly to fig. 4, the heat sink 420 has heat dissipation fins, and the heat dissipation fins are installed in the second heat dissipation air duct and are disposed corresponding to the blowing side of the fan 410. With the arrangement, under the cooperation of the fan 410 and the radiator 420, the heat dissipation performance of the whole photovoltaic charge controller is greatly improved.
In order to make the wind blown by the fan 410 timely take away the heat absorbed by the heat sink 420 to further improve the heat dissipation performance of the photovoltaic charge controller, in an embodiment, referring mainly to fig. 3, the heat dissipation assembly 400 may further include an air duct piece 430, and the air duct piece 430 is covered on the fan 410 and the heat dissipation fins and forms a heat dissipation air duct.
Based on the above embodiments, in an embodiment, referring to fig. 3 and 4, the plurality of heat generating units 300 includes a driving assembly 310, the driving assembly 310 includes a driving board, and the driving board is installed in the second heat dissipation cavity; the heat sink 420 is mounted against the driver board. In this embodiment, referring mainly to fig. 4, the driving board is provided with an MOS tube 311, and a heating surface of the MOS tube 311 is attached to the heat sink 420, so that heat generated by the driving component 310 can be taken away through the heat sink 420, and the driving component 310 is cooled in time, thereby reducing the performance influence of the temperature on the driving component 310 and improving the product performance.
Referring to fig. 5, in order to facilitate assembling the components, in an embodiment, the housing assembly 100 of the photovoltaic charging controller may include a box body 110 having an opening at one end thereof and a back plate 120 covering the opening, a routing opening 120a for a signal input cable or a signal output cable connected to an external device to pass through is disposed on the back plate 120 at a position corresponding to the driving assembly 310, and a wiring cover 130 is detachably covered on the routing opening 120 a. So set up, when needs carry out electrical connection to photovoltaic charging controller, the accessible is opened wiring apron 130 and can be operated the wiring to input or output cable, need not to dismantle whole backplate 120, has promoted the operation convenience. Moreover, due to the installation of the left and right components in the box body 110, all the screws are hidden on the back plate 120, so that no screws are exposed out of the outer surface of the photovoltaic charging controller, and the industrial aesthetic feeling of the product is improved.
In addition, in order to facilitate inputting or outputting more signals to realize the corresponding function of the photovoltaic charging controller, in some embodiments, a plurality of mounting holes 110b for mounting signal interfaces may be disposed on a side plate of the box body 110, so that the photovoltaic charging controller is in signal connection with other devices, and thus, wiring is facilitated.
Further, in order to improve the convenience of assembly and reasonably utilize the internal space of the housing assembly 100, so as to reduce the volume of the product, in an embodiment, referring mainly to fig. 1 and 3, the plurality of heating units 300 may further include a display screen assembly 320 and an inductor assembly 330, a display window 110a is disposed on the box body 110, the display screen assembly 320 is installed in the first heat dissipation cavity and exposed through the display window 110a, and the inductor assembly 330 is installed in the first heat dissipation cavity; the driving assembly 310 is connected with the display screen assembly 320 through a first connecting line, the driving assembly 310 is connected with the inductance assembly 330 through a second connecting line, and the partition plate 200 is provided with a wire hole for the first connecting line and/or the second connecting line to pass through. By the arrangement, the driving assembly 310, the display screen assembly 320 and the inductance assembly 330 are convenient to connect, various connecting cables are prevented from being mixed together, and wiring is convenient.
It should be noted that the display screen of the present embodiment may be an LCD display screen, and the present invention is not limited thereto.
Based on the above embodiments, in an embodiment, referring mainly to fig. 2, an accommodating opening for accommodating the keys of the display screen assembly 320 may be formed at a position on the box body 110 close to the display window 110 a; the box body 110 may be attached with a protective film 111, the position of the protective film 111 corresponding to the display window 110a may be made of a transparent material, or the whole protective film 111 may be made of a transparent material so as to facilitate production, and a convex hull 1111 for accommodating a pressing portion of a key of the display screen assembly 320 is convexly disposed at a position of the protective film 111 corresponding to the accommodating opening. Therefore, the display screen assembly 320 and the keys thereof are protected to a certain extent while the key pressing operation is not influenced, and the attractiveness of the product is improved.
In this embodiment, the protection film 111 may be made of PET, the convex hull 1111 of the protection film 111 corresponding to the key position may be made by a stamping process, the convex hull 1111 may be a circle with a height of 0.3mm, and the material of the protection film 111 and the specification of the convex hull 1111 thereon are not limited.
The utility model discloses still provide a battery charging outfit, especially photovoltaic battery charging outfit, here is not limited. This battery charging outfit includes photovoltaic charge controller, and this photovoltaic charge controller's concrete structure refers to above-mentioned embodiment, because the utility model provides a battery charging outfit includes all schemes of above-mentioned photovoltaic charge controller's all embodiments, consequently, has at least with the same technological effect of photovoltaic charge controller, the explanation differs here.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. A photovoltaic charge controller, comprising:
a housing assembly formed with a mounting cavity;
the partition plate is arranged in the mounting cavity and divides the mounting cavity into a first heat dissipation cavity and a second heat dissipation cavity, a communication opening for communicating the first heat dissipation cavity with the second heat dissipation cavity is formed in the partition plate, and an air inlet communicated with the first heat dissipation cavity and an air outlet communicated with the second heat dissipation cavity are formed in the shell assembly;
the heating units are respectively arranged in the first heat dissipation cavity and the second heat dissipation cavity; and
and the heat dissipation assembly comprises a fan, and the fan is arranged on the partition plate.
2. The photovoltaic charge controller of claim 1, wherein the heat dissipation assembly further comprises a heat sink disposed in the second heat dissipation chamber and configured to dissipate heat from the heat generating unit located in the second heat dissipation chamber.
3. The photovoltaic charge controller of claim 2, wherein the heat sink comprises heat fins mounted in the second heat dissipation duct and disposed corresponding to the blowing side of the fan.
4. The photovoltaic charge controller of claim 3, wherein the heat dissipation assembly further comprises an air duct sheet covering the fan and the heat dissipation fins and forming a heat dissipation air duct.
5. The photovoltaic charge controller of claim 2, wherein a plurality of said heat generating units comprise a drive assembly, said drive assembly comprising a drive board, said drive board being mounted within said second heat dissipation cavity;
the heat radiator is attached to the driving plate.
6. The photovoltaic charge controller of claim 5, wherein the driving board is provided with an MOS (metal oxide semiconductor) tube, and a heating surface of the MOS tube is attached to the heat sink.
7. The photovoltaic charge controller of claim 5, wherein the housing assembly comprises a box body with an opening at one end and a back plate covering the opening, a routing opening for a signal input cable or a signal output cable connected with an external device to pass through is formed in the back plate corresponding to the driving assembly, and a wiring cover plate is detachably covered on the routing opening.
8. The photovoltaic charge controller of claim 7, wherein the plurality of heat generating units further comprises a display screen assembly and an inductor assembly, a display window is disposed on the box body, the display screen assembly is mounted in the first heat dissipation cavity and exposed through the display window, and the inductor assembly is mounted in the first heat dissipation cavity;
the driving assembly is connected with the display screen assembly through a first connecting wire, the driving assembly is connected with the inductance assembly through a second connecting wire, and a wiring hole for the first connecting wire and/or the second connecting wire to pass through is formed in the partition plate.
9. The photovoltaic charge controller of claim 8, wherein a receiving opening for receiving a key of the display screen assembly is formed in the box body at a position close to the display window;
the box body is provided with a protective film in an attached mode, the position, corresponding to the display window, of the protective film is made of transparent materials, and a convex hull for accommodating the pressing portion of the display screen assembly key is convexly arranged at the position, corresponding to the accommodating port, of the protective film.
10. A charging device, characterized in that the charging device comprises a photovoltaic charge controller according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161636.8U CN213846259U (en) | 2020-09-27 | 2020-09-27 | Photovoltaic charging controller and charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161636.8U CN213846259U (en) | 2020-09-27 | 2020-09-27 | Photovoltaic charging controller and charging equipment |
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| Publication Number | Publication Date |
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| CN213846259U true CN213846259U (en) | 2021-07-30 |
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| CN202022161636.8U Active CN213846259U (en) | 2020-09-27 | 2020-09-27 | Photovoltaic charging controller and charging equipment |
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| CN (1) | CN213846259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023092553A1 (en) * | 2021-11-29 | 2023-06-01 | 华为数字能源技术有限公司 | Power supply system, power conversion apparatus, and power system |
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2020
- 2020-09-27 CN CN202022161636.8U patent/CN213846259U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023092553A1 (en) * | 2021-11-29 | 2023-06-01 | 华为数字能源技术有限公司 | Power supply system, power conversion apparatus, and power system |
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