CN209072084U - The two-way off-grid type photovoltaic energy inversion energy storage device of high frequency - Google Patents
The two-way off-grid type photovoltaic energy inversion energy storage device of high frequency Download PDFInfo
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- CN209072084U CN209072084U CN201821907582.1U CN201821907582U CN209072084U CN 209072084 U CN209072084 U CN 209072084U CN 201821907582 U CN201821907582 U CN 201821907582U CN 209072084 U CN209072084 U CN 209072084U
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- high frequency
- storage device
- energy storage
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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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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses a kind of two-way off-grid type photovoltaic energy inversion energy storage device of high frequency, includes a main casing, a upper cover body, an operation panel, a liner plate and a removable cover;The main casing outer front end is equipped with multiple air inlet holes, and is equipped with multiple connecting terminals and multiple connecting terminals, and main casing both sides external side is equipped with symmetrical heat sink, and main casing interior forward end is equipped with multiple fans in place of corresponding to multiple air inlet hole.Wherein the liner plate is arranged between the main casing and the upper cover body, the rear end of the liner plate is to bend downward and formed an accommodating plane for accommodating the operation panel, the liner plate simultaneously can cover the periphery of multiple fan and be dissipated away with guiding wind direction for internal heat by the heat sink, not only reduce assembling cost, production yield is promoted, and heat dissipation effect is splendid.
Description
Technical field
The utility model relates to a kind of two-way off-grid type photovoltaic energy inversion energy storage devices of high frequency, especially a kind of to have conveniently
Assembling and the two-way off-grid type photovoltaic energy inversion energy storage device of the good high frequency of heat dissipation effect.
Background technique
In assembling production, the black box assembling of producing line is not easy the photovoltaic energy inversion energy storage device that existing tradition is commonly used,
Yield is low, assembling is at high cost and heat dissipation effect is poor, needs and necessity is improved.
Utility model content
The utility model discloses a kind of two-way off-grid type photovoltaic energy inversion energy storage device of high frequency, includes a main casing, institute
Main casing outer front end is stated equipped with multiple air inlet holes, and is equipped with multiple connecting terminals and multiple connecting terminals, outside the main casing
Portion two sides are equipped with symmetrical heat sink, and the main casing interior forward end is equipped with multiple wind in place of corresponding to the multiple air inlet hole
Fan;Multiple circuit boards are equipped in the main casing;One upper cover body is set to above the main casing, and the rear end of the upper cover body is hung down
The main casing is directly extended downward into, the two sides of the upper cover body, which are respectively perpendicular, has extended downwardly side plate;One operation panel,
Within the upper cover body, the operation panel is equipped with a screen, multiple indicator lights and multiple buttons, and the upper cover body
Upper surface corresponds to the screen, the indicator light and the button equipped with corresponding perforation;One liner plate is arranged between described
Between main casing and the upper cover body, the liner plate rear end is to bend downward and formed an accommodating plane for accommodating the operation
Panel;And a removable cover, it fastens set on the top of the main casing front end, and in the front end of the upper cover body, and described
Removable cover is to cover after the main casing is combined with the upper cover body to be formed by preceding end spaces.
In one embodiment, the plate that the liner plate is one of the forming includes: the rear end of a upper plate, the upper plate is
Form the accommodating space;Upper plate before one, the preceding upper plate is the extension of the upper front edge of board, and the preceding upper plate is to prolong upwards
It stretches to form an inclined-plane;One right side plate, the right side plate are that the part in the upper plate right side extends downward into the main casing;One
Left plate, the left plate are that the part in the upper plate left side extends downward into the main casing;And a left inclined plate, by described
The front end of left plate tilts outward extends to form an inclined-plane, and the front end of the left inclined plate is formed with a folding face.
In one embodiment, the side of the protrusive board is extended with a flange;And the front end of the upper cover body is recessed equipped with one
The inside of plate, the notch board is equipped with a shrinkage pool;The overlapped protrusive board is used for above the notch board, the shrinkage pool to be for accommodating institute
It states flange to penetrate in the shrinkage pool, the removable cover is made to be incorporated into the upper cover body front end.
In one embodiment, the inside of the main casing is multiple scattered relative to being provided on the corresponding position of the fan
Hot fin device, the radiating fin device are strip, and the air inlet side in the strip direction of the radiating fin device and the fan
To parallel.
In one embodiment, the rear end inside the main casing is equipped with an at least radiating block, and the radiating block has multiple
Heat radiating fin slip, and each heat radiating fin slip in the radiating fin is parallel to each other.
In one embodiment, the front end of the preceding upper plate is just the top for covering the fan;And the front end of the folding face,
The front end of the right side plate and the front end of the preceding upper plate just cover the periphery of the multiple fan.
In one embodiment, the two sides of the removable cover, which extend downwardly respectively, a side cover plate, and the side cover plate is to cover
The upper two sides in the main casing front end are covered, combine the removable cover with the main casing.
In one embodiment, the extending direction of multiple fins in the radiating fin device and the strip direction are flat
Row;And the radiating fin device and engaged with multiple changeover modules in the circuit board, for by the changeover module
Heat is shed outside the two-way off-grid type photovoltaic energy inversion energy storage device of the high frequency.
In one embodiment, the air inlet side of the extending direction of the heat radiating fin slip in the radiating block and the fan
To vertical.
In one embodiment, it the radiating block and engages, is used for the multiple changeover modules in part in the circuit board
The heat of the changeover module is shed the two-way off-grid type photovoltaic energy inversion energy storage device of the high frequency via the heat sink
Outside.
The two-way off-grid type photovoltaic energy inversion energy storage device of the high frequency of the utility model can effectively achieve reduction and be assembled into
The considerations of this, promotes production yield, and heat dissipation effect is splendid, complies fully with the cost of green energy economic benefit, and can be extensive
And it easily applies and uses.
Detailed description of the invention
Fig. 1 is the perspective diagram of the utility model embodiment;
Fig. 2 is the decomposition diagram of the utility model embodiment;
Fig. 3 is first decomposition diagram of the utility model embodiment;
Fig. 4 is second decomposition diagram of the utility model embodiment;
Fig. 5 is the third decomposition diagram of the utility model embodiment;
Fig. 6 is the liner plate implementation diagram of the utility model embodiment;
Fig. 7 is implementation diagram inside the main casing of the utility model embodiment.
Specific embodiment
It hereinafter will be refering to alterations, so as to various exemplary embodiments are more fully described, and in alterations
It is middle to show some exemplary embodiments.However, the concept of the utility model may be embodied in many different forms, and not
It should be interpreted that and be only limitted to exemplary embodiments set forth herein.Specifically, these exemplary embodiments are provided and make this
Utility model will be scope that is detailed and complete, and the utility model concept will sufficiently being conveyed to those who familiarize themselves with the technology.All
In schema, the size and opposite size of each construction package can be lavished praise on oneself in order to clear.Similar number indicates always
Similar assembly.
Although should be understood that may use term herein, front, rear, top, and bottom, left or right side etc. describe various groups
The position of part, but these components should not be limited by these terms.These terms are for clearly distinguishing a component and another group
The setting position of part and its difference.Therefore, left (or right) component, which is discussed herein below, can be described as left side (or right side) component without inclined
Teaching from the utility model concept;Same its " front end, rear end " used herein is only to illustrate that the relative position of component is closed
System, not necessarily for after each component, preceding corresponding relationship.The terms such as " first " or " second " as used herein are being only
For clearly distinguishing a component and another component, not necessarily there are certain ordinal relations between the two.Such as institute herein
It uses, term " and/or " it include the associated all combinations for listing any one and one or more in project.Also, herein can
Term "at least one", " multiple " or " multiple " can be used to describe with single multiple components above, but these multiple groups
Part, which is not limited in being implemented with one, two, three or more than four component counts, indicates implemented technology.These terms
Explanation, conjunction first state clearly.
It is as shown in Figs.1 and 2 the implementation of the two-way off-grid type photovoltaic energy inversion energy storage device of the utility model high frequency
Example perspective diagram and decomposition diagram includes in the two-way off-grid type photovoltaic energy inversion energy storage device of the utility model high frequency
One main casing 10, a upper cover body 30, an operation panel 40, a liner plate 50 and a removable cover 60.Before 10 outside of main casing
End is equipped with multiple air inlet holes 12, and is equipped with multiple connecting terminals 14 and multiple connecting terminals 15, and 10 both sides external side of main casing is set
Multiple fans 16 are equipped in place of having symmetrical heat sink 13, main casing interior forward end to correspond to the multiple air inlet hole.In practical fortune
With mainly there are two regions for multiple air inlet holes 12, can respectively correspond fan set by 10 inside of main casing
16, it is the air inlet hole as fan 16;The composition or composition of air inlet hole 12 about each region are by multiple circular holes, multiple
Polygon hole either multiple strip hole institutes constitutor, the content of the present invention is not intended to limit, when adjusting according to the demand of user
It is whole.
The multiple connecting terminal 14 is in practice, however it is not limited to be connect which kind of electric power assembly, power source or
It is the associated connections of power supply output, multiple connecting terminals 14 of the utility model are to provide the two-way off-grid type photovoltaic energy inversion of high frequency
The connecting interface of energy storage device and the demand of external cabling.Likewise, multiple connecting terminals 15 do not limit yet and are for connection to control
The transmission terminal of the online signal of signal processed, multiple connecting terminals 15 can also be used as other electric signals transmission purposes
Connecting interface.The heat sink 13 is symmetrically arranged in the two sides of main casing 10, for will be inside single unit system
Hot gas sheds.
The upper cover body 30 is set to the top of main casing 10, and the rear end of 30 modular construction of upper cover body is to extend vertically downward
To the bottom of 10 rear end of main casing, for the rear end for covering main casing 10, as shown in Figure 2;The two sides difference of upper cover body 30 simultaneously
Extending both sides vertically downward respectively has side plate 32, and the side plate 32 of left and right sides is used to cover the upper limb of 10 two sides of main casing.Operation
Panel 40 is set within upper cover body 30, and operation panel 40 itself is equipped with a screen 41, multiple indicator lights 42 and multiple buttons 43, and
The upper surface of upper cover body 30 corresponds to screen 41, multiple indicator lights 42 and multiple buttons 43 etc. and is equipped with corresponding perforation 38,
The perforation 38 is for allowing screen 41, indicator light 42 and button 43 that can be immediately seen screen by the top of upper cover body 30
Curtain 41, the corresponding display of indicator light 42, and can touch and press the button 43.
The liner plate 50 is arranged between main casing 10 and upper cover body 30 in Fig. 2, and wherein 50 rear end of liner plate is
It bends downward and forms an accommodating plane 52 for accommodating operation panel 40.Further explanation in relation to liner plate 50, please be refering to
Fig. 2 and liner plate shown in fig. 6 50, wherein the liner plate 50 of the utility model is one block of plate being one of the forming, liner plate 50
Overall structure structure be include upper plate 53 before a upper plate 51, one, a right side plate 54, a left plate 55, a left inclined plate 56 and
One back side panel 58.The rear end part of upper plate 51 is one height of decline in liner plate 50, as forms accommodating space 52 above-mentioned;It is described
Preceding upper plate 53 is then the extension of 51 front end of upper plate, and preceding upper plate 53 is to upwardly extend to form an inclined-plane a little, this is tiltedly
It is to separate that the two sides in face, which are with the two sides of the liner plate 50,;Right side plate 54 is that the part in 51 right side of upper plate extends downwardly, can
Extend to the interior bottom portion of main casing 10.The part extends downwardly, and implies that the entire right side of not upper plate 51 is all downward
Extend, only the right-hand component edge just like upper plate 51 described in Fig. 2, Fig. 6 is extended with right side plate 54;Likewise, left plate 55 is upper
Part in 51 left side of plate extends downward into the interior bottom portion of main casing 10.The left inclined plate 56 is by aforementioned left plate 55
Front end tilts outward extends to form an inclined-plane, and the front end of left inclined plate 56 is formed with a folding face 57.In 51 rear end of upper plate
The edge for accommodating plane 52, extends downwardly the interior bottom portion that the main casing 10 is extended to equipped with a back side panel 58, after described
Side plate 58 is the structure of unilateral setting.
The wherein front edge of the preceding upper plate 53, just the top edge to cover the fan 16;And the front end of folding face 57,
Three structure divisions such as the front end of right side plate 54 and the front end of preceding upper plate 53 are just the periphery for covering the multiple fan 16;Make
After obtaining the air inlet of fan 16, guiding wind-force can be concentrated, the wind that will be introduced is directed at the group that 10 inside of main casing mainly generates heat
On part, then the hot gas mainly to generate heat shed hot gas except device by the heat sink 13 of the left and right sides.
Removable cover 60 described in Fig. 1, Fig. 2 is the top for being set to 10 front end of main casing, and in the front end of upper cover body 30
It fastens, and removable cover 60 is end spaces 62 before being formed by one after covering combined by main casing 10 and upper cover body 30.It is described
Preceding end spaces 62 as shown in figure 3, Fig. 3 be disassemble the utility model embodiment the first decomposition diagram.Palpus expositor, herein
Described first decomposition does not mean that inevitable the first of dismantling the utility model embodiment acts, and only describes this for convenience in this
The different decomposition aspect of each component of utility model is not intended to limit dismantling the utility model has to since Fig. 3 the step of, makes
User can dismantle upper cover body 30 first directly also to facilitate wiring operation or execute maintenance.Wherein 60 top of removable cover
Rear side extend be equipped with a protrusive board 63, the side of the protrusive board 63 is extended with a flange 65;And the front end of upper cover body 30 is equipped with
The inside of one notch board 34, the notch board 34 is equipped with a shrinkage pool 36;The overlapped protrusive board 63 is used for above the notch board 34, it is described
Shrinkage pool 36 penetrates in the shrinkage pool 36 for accommodating the flange 65, and removable cover 60 is made to be incorporated into the front end of upper cover body 30.Its
The two sides of middle removable cover 60, which extend downwardly respectively, a side cover plate 61, and the side cover plate 61 is for being covered on 10 front end of main casing
Upper two sides, so that removable cover 60 is combined with main casing 10.
Fig. 4 is second exploded pictorial for disassembling the two-way off-grid type photovoltaic energy inversion energy storage device of the utility model high frequency
Figure, be at this time the upper cover body 30 and operation panel 40 are decomposited from the main casing 10 come, in order to be conducive to learn this reality
Structural representation with novel Moveable lid body 60, upper cover body 30 and operation panel 40 from the main casing 10 after separated
Figure.Fig. 5 is the third decomposition diagram for disassembling the two-way off-grid type photovoltaic energy inversion energy storage device of the utility model high frequency, at this time
It is to decomposite operation panel 40 from the upper cover body 30 to come, in order to conducive to Moveable lid body 60, the upper cover for learning the utility model
Body 30, the operation panel 40 respectively difference structural schematic diagram from the main casing 10 after separated.It is decomposed to row again, then
It is 10 to be separated liner plate 50 from main casing, the as decomposition diagram as disclosed in Fig. 2.It is practical new that Fig. 6 show this
50 structural schematic diagram of liner plate of type.
Fig. 7 is the implementation diagram illustrated inside the main casing 10 of the utility model embodiment, herein must declarant, Fig. 7
Internal structure be only embodiment explanation, reference by way of example only of the placement position of each construction package is used, and practical
New device when actual implementation, when not with the position of the component each in Fig. 7 be limitation.It is wherein equipped in main casing 10 multiple
Circuit board 26, the combination of each circuit unit of the circuit board 26 as are used to reach the two-way off-network of high frequency of the utility model
Circuit effect required for formula photovoltaic energy inversion energy storage device, and be not required to battery and can start the behaviour of related electric network source running
Make.The inside of main casing 10 is described relative to being provided with multiple radiating fin devices 20,22 on the corresponding position of the fan 16
Radiating fin device 20,22 is strip, and the air inlet side of the radiating fin device 20, strip direction and the fan 16
To parallel.For example, the wind that fan 16 is introduced is directly to then the strip of the radiating fin device 20,22 is straight strip
Shape, the position as disclosed by Fig. 7.The wherein extending direction of multiple fins in the radiating fin device 20,22 and the strip
Direction be it is parallel, and the radiating fin device 20,22 and with multiple changeover modules in the circuit board 26 (without mark in figure
Number) engage, thermal energy when for operating the changeover module is shed the two-way off-grid type photovoltaic of the high frequency can be inverse
Become outside energy storage device, and can be the structure designed by the tail end of the liner plate 50, by hot gas by the heat sink 13 of two sides
Dissipation is gone out.
In addition, the rear end inside main casing 10 is equipped with an at least radiating block 24, the radiating block 24 is that have multiple heat dissipations
Fin item, and each heat radiating fin slip in the radiating fin is parallel to each other, as shown in Figure 7.The wherein institute in radiating block 24
The strip extending direction for stating heat radiating fin slip is vertical with the air inlet direction of the fan, so that being installed on the radiating block 24
The heat of multiple changeover modules (unlabelled in figure), can dissipate away to the heat sink 13 of two sides.
In conclusion the utility model discloses a kind of two-way off-grid type photovoltaic energy inversion energy storage device of high frequency, via above-mentioned
The explanation of structure assembling, by different between main casing 10, upper cover body 30, operation panel 40, liner plate 50 and removable cover 60
The relationship of structure setting and its assembling engagement, enables the device of the utility model effectively to promote assembling yield, life is significantly increased
The efficiency of production, and heat dissipation when circuit unit running is splendid.The technology contents of obvious the utility model have extremely strong strength
Patent application important document.
The utility model illustrates the content, only preferred embodiment for example, when this reality cannot be limited with it
With novel protected range, any correlation local variation, small modification amendment or increased technology, or for numerically or position
Variation set etc., the range protected without departing from the utility model.
Claims (10)
1. a kind of two-way off-grid type photovoltaic energy inversion energy storage device of high frequency characterized by comprising
One main casing, the main casing outer front end is equipped with multiple air inlet holes, and is equipped with multiple connecting terminals and multiple online ends
Son, main casing both sides external side are equipped with symmetrical heat sink, and the main casing interior forward end corresponds to the multiple air inlet hole
Place is equipped with multiple fans;Multiple circuit boards are equipped in the main casing;
One upper cover body is set to above the main casing, and the rear end of the upper cover body extends to the main casing vertically downward, described
The two sides of upper cover body, which are respectively perpendicular, has extended downwardly side plate;
One operation panel is set within the upper cover body, and the operation panel is equipped with a screen, multiple indicator lights and multiple presses
Button, and the upper surface of the upper cover body corresponds to the screen, the indicator light and the button equipped with corresponding perforation;
One liner plate is arranged between the main casing and the upper cover body, and the rear end of the liner plate is to bend downward and formed
One accommodating plane is for accommodating the operation panel;And
One removable cover fastens set on the top of the front end of the main casing, and in the front end of the upper cover body, and the work
Dynamic cover board is to cover after the main casing is combined with the upper cover body to be formed by preceding end spaces.
2. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as described in claim 1, which is characterized in that the wherein liner plate
The plate being one of the forming includes:
The rear end of one upper plate, the upper plate forms accommodating space;
Upper plate before one, the preceding upper plate is the extension of the front end of the upper plate, and the preceding upper plate is to upwardly extend to form one tiltedly
Face;
One right side plate, the right side plate are that the part in the upper plate right side extends downward into the main casing;
One left plate, the left plate are that the part in the upper plate left side extends downward into the main casing;And
One left inclined plate is tilted outward by the front end of the left plate and extends to form an inclined-plane, and the front end of the left inclined plate is formed
There is a folding face.
3. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as described in claim 1, which is characterized in that the wherein activity
The rear side of cover board top, which extends, is equipped with a protrusive board, and the side of the protrusive board is extended with a flange;And the front end of the upper cover body
Equipped with a notch board, the inside of the notch board is equipped with a shrinkage pool;The overlapped protrusive board is used for above the notch board, the shrinkage pool to be used
It is penetrated in the shrinkage pool in accommodating the flange, the removable cover is made to be incorporated into the front end of the upper cover body.
4. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as described in claim 1, which is characterized in that the wherein main casing
The inside of body is strip relative to multiple radiating fin devices, the radiating fin device is provided on the corresponding position of the fan
Shape, and the strip direction of the radiating fin device is parallel with the air inlet direction of the fan.
5. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as described in claim 1, which is characterized in that the wherein main casing
The rear end in internal portion is equipped with an at least radiating block, and the radiating block has multiple heat radiating fin slips, and in the radiating fin
Each heat radiating fin slip is parallel to each other.
6. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as claimed in claim 2, which is characterized in that on before wherein described
The front end of plate is just the top for covering the fan;And the front end of the folding face, the front end of the right side plate and the preceding upper plate
Front end just cover the periphery of the multiple fan.
7. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as claimed in claim 3, which is characterized in that the wherein activity
The two sides of cover board, which extend downwardly respectively, a side cover plate, and the side cover plate is the upper two sides for being covered on the main casing front end, makes
The removable cover is combined with the main casing.
8. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as claimed in claim 4, which is characterized in that the wherein heat dissipation
The extending direction of multiple fins in fin device is parallel with the strip direction;And the radiating fin device and with the circuit
Multiple changeover modules in plate engage, for the heat of the changeover module to be shed the two-way off-grid type photovoltaic of the high frequency
It can inversion energy storage device outside.
9. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as claimed in claim 5, which is characterized in that the wherein heat dissipation
The extending direction of the heat radiating fin slip in block is vertical with the air inlet direction of the fan.
10. the two-way off-grid type photovoltaic energy inversion energy storage device of high frequency as claimed in claim 9, which is characterized in that wherein described to dissipate
Heat block is simultaneously engaged with the multiple changeover modules in part in the circuit board, for dissipating the heat of the changeover module via described
Hot plate is shed outside the two-way off-grid type photovoltaic energy inversion energy storage device of the high frequency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201821907582.1U CN209072084U (en) | 2018-11-19 | 2018-11-19 | The two-way off-grid type photovoltaic energy inversion energy storage device of high frequency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201821907582.1U CN209072084U (en) | 2018-11-19 | 2018-11-19 | The two-way off-grid type photovoltaic energy inversion energy storage device of high frequency |
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Publication Number | Publication Date |
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CN209072084U true CN209072084U (en) | 2019-07-05 |
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ID=67099603
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CN201821907582.1U Active CN209072084U (en) | 2018-11-19 | 2018-11-19 | The two-way off-grid type photovoltaic energy inversion energy storage device of high frequency |
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CN (1) | CN209072084U (en) |
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2018
- 2018-11-19 CN CN201821907582.1U patent/CN209072084U/en active Active
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