CN218783420U

CN218783420U - Inversion all-in-one machine

Info

Publication number: CN218783420U
Application number: CN202222484816.9U
Authority: CN
Inventors: 许高齐
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-03-31
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses an contravariant all-in-one, contravariant all-in-one includes: the high-voltage air cabinet comprises a bottom plate, a box body, an inverter, a transformer and a high-voltage air cabinet, wherein the box body is arranged on the bottom plate; the inverter is arranged on one side of the box body, the transformer is arranged in the box body, the low-voltage side of the transformer is electrically connected with the inverter, the high-pressure air cabinet is suitable for outdoor use, is positioned on two opposite sides of the box body together with the inverter and is arranged on the bottom plate, and the high-pressure air cabinet is electrically connected with the high-voltage side of the transformer. From this, through setting up the setting of integrating of bottom plate in order to realize transformer, dc-to-ac converter and highly-compressed air cabinet to set up the transformer in the box, can use under outdoor environment, satisfy under the prerequisite of protection requirement, need not to adopt the container to realize integrating the setting, can reduce the space and occupy, reduction in production cost, and the dismouting convenience is higher, can effectively reduce the maintenance cost in later stage.

Description

Inversion all-in-one machine

Technical Field

The utility model belongs to the technical field of distribution equipment and specifically relates to an contravariant all-in-one is related to.

Background

In recent years, in the construction of photovoltaic power stations, container type inversion all-in-one machines have been successfully developed from unknown to the photovoltaic inversion all-in-one machine solution which is currently the mainstream. The container is characterized in that all equipment is integrated in the container in a factory stage, and only the civil foundation is needed to fix the container on the spot, so that the equipment has the advantages of short manufacturing period and low cost.

However, the inverter, the transformer, the switch cabinet, the power distribution cabinet and the like are integrated in one container, the container is high in cost, installation and maintenance difficulty is high, and later maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses an aim at provides contravariant all-in-one, the degree of difficulty is maintained in the installation of contravariant all-in-one is little, and is with low costs, and the space occupies more rationally.

According to the utility model discloses contravariant all-in-one, include: the high-voltage air cabinet comprises a bottom plate, a box body, an inverter, a transformer and a high-voltage air cabinet, wherein the box body is arranged on the bottom plate; the inverter is arranged on one side of the box body, the transformer is arranged in the box body, the low-voltage side of the transformer is electrically connected with the inverter, the high-pressure air cabinet is suitable for outdoor use, is positioned on two opposite sides of the box body together with the inverter and is arranged on the bottom plate, and the high-pressure air cabinet is electrically connected with the high-voltage side of the transformer.

According to the utility model discloses contravariant all-in-one through setting up the setting of integrating of bottom plate in order to realize transformer, dc-to-ac converter and highly-compressed air cabinet, and then through setting up the box to set up the transformer in the box, can use under outdoor environment, satisfy under the prerequisite of protection requirement, need not to adopt the container to realize integrating the setting, can reduce space and occupy, reduction in production cost, and the dismouting convenience is higher, can effectively reduce the maintenance cost in later stage.

According to some embodiments of the utility model, the contravariant all-in-one still includes: and the low-voltage side electric connector of the inverter is arranged in the protective box and is electrically connected with the low-voltage side of the transformer.

Further, the base plate includes: the protective box comprises a cross beam and a longitudinal beam which are connected end to end, wherein a supporting beam is further arranged between the cross beam and the longitudinal beam, a gap is formed between every two adjacent supporting beams, and the protective box is arranged in the gap.

Further, a first guard member is disposed between the protection box and the case.

Further, a second protection piece is arranged between the high-pressure air cabinet and the box body.

Optionally, the inverter all-in-one machine further includes: and the low-voltage power distribution cabinet is arranged on the bottom plate, is arranged at the same side as the high-pressure air cabinet and is electrically connected with the high-pressure air cabinet.

According to the utility model discloses a some embodiments, the box have a plurality of curb plates and detachably set up in the top cap of curb plate top, at least one be provided with open closed guard gate on the curb plate.

Further, the case has an air inlet and an air outlet communicating with each other for cooling the transformer.

Further, the air inlet, the air outlet and the inverter are located on different sides of the box body.

Further, a grille is arranged on the air inlet area, a fan is arranged close to the air outlet, and a third protection piece is arranged outside the air outlet.

In some embodiments, the inverters are multiple and arranged in sequence.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of an inversion all-in-one machine according to an embodiment of the present invention;

fig. 2 is a schematic top view of an inversion integrator in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of a third guard according to an embodiment of the invention;

fig. 4 is a schematic view of an angle of a case according to an embodiment of the present invention;

fig. 5 is a schematic view of another angle of the case according to an embodiment of the present invention.

Reference numerals are as follows:

the inverter-integrated machine 100 is driven by a motor,

floor 10, cross beams 11, longitudinal beams 12, gaps 13,

a box body 20, an air inlet 21, an air outlet 22, a fan 23, a low-pressure side interface 24 and a high-pressure side interface 25,

the high-voltage air conditioner comprises an inverter 30, a transformer 40, a high-voltage air cabinet 50, a first protection piece 60, a second protection piece 70, a low-voltage distribution cabinet 80 and a third protection piece 90.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The inversion all-in-one machine 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 and fig. 2, the inverter all-in-one machine 100 according to the embodiment of the present invention includes: a base plate 10, a tank 20, an inverter 30, a transformer 40, and a high pressure air tank 50.

Wherein, the box body 20 is arranged on the bottom plate 10; the inverter 30 is disposed at one side of the case 20, the transformer 40 is disposed in the case 20, a low voltage side of the transformer 40 is electrically connected to the inverter 30, and a high voltage side of the transformer 40 is electrically connected to the high pressure air tank 50.

Specifically, the inverter all-in-one machine 100 may include: at least one transformer 40 and at least one inverter 30, and the high-pressure air cabinet 50, the transformer 40 and the inverter 30, etc. are all arranged on the bottom plate 10, and the transformer 40 is electrically connected with the inverter 30 and the high-pressure air cabinet 50 to form an integrated power distribution device, so as to meet the requirement of inversion grid connection.

It should be pointed out that, in order to improve distribution equipment's operational reliability and security, contravariant all-in-one 100 that uses under outdoor environment need satisfy certain IP protection level (be close to dangerous part promptly to the people, place the protection degree that fixed foreign matter got into or water got into provided), though set up and can satisfy the protection demand in the collection box, nevertheless area is great, and the cost is higher, and the dismouting degree of difficulty is great, the installation is maintained the degree of difficulty greatly, the maintenance cost in later stage is high, and the utility model discloses set up box 20 on bottom plate 10, and box 20 is used for holding transformer 40, under the prerequisite that satisfies the protection demand, the container scheme of comparing, area is littleer, and the cost is lower, and the dismouting degree of difficulty is little, can reduce the maintenance cost in later stage.

And the utility model discloses the high-pressure air cabinet 50 is suitable for outdoor use, and high-pressure air cabinet 50 is located the relative both sides of box 20 with dc-to-ac converter 30 to set up on bottom plate 10, high-pressure air cabinet 50 is connected with the high-pressure side electricity of transformer 40.

Specifically, the high-voltage side of the transformer 40 is electrically connected to the high-voltage air cabinet 50, the box 20 is correspondingly provided with an interface through which a high-voltage side electrical connector (such as a cable) extends, the high-voltage side electrical connector extends out of the interface and then is electrically connected to the high-voltage air cabinet 50, and the high-voltage air cabinet 50 and the inverter 30 are located on two sides of the box 20, so that the low-voltage side and the high-voltage side of the transformer 40 can be ensured to be located on two sides of the box 20, high-voltage and low-voltage isolation is realized, the reliability and the safety of the inversion all-in-one machine 100 are improved, meanwhile, wiring of the low-voltage side and the high-voltage side is facilitated, and space occupation is improved.

It should be noted that the high-pressure air cabinet 50 suitable for outdoor use means that the high-pressure control cabinet 50 has high sealing performance and can meet the outdoor use requirement.

According to the utility model discloses contravariant all-in-one 100 through setting up the setting of integrating of bottom plate 10 in order to realize transformer 40, dc-to-ac converter 30 and highly-compressed air cabinet 50, and then through setting up box 20 to set up transformer 40 in box 20, can use under outdoor environment, satisfy under the prerequisite of protection requirement, need not to adopt the container to realize integrating the setting, can reduce the space and occupy, reduction in production cost, and the dismouting convenience is higher, can effectively reduce the maintenance cost in later stage.

It should be noted that, in the embodiment of the present invention, when the low voltage side and the low voltage side between the adjacent electrical components, the high voltage side and the high voltage side are electrically connected, the electrical connection can be realized through the copper bar, the woven cable, the wire harness, etc., and the present invention is not limited in particular.

Further, the base plate 10 includes: the protective box comprises a transverse beam 11 and a longitudinal beam 12 which are connected end to end, supporting beams are further arranged between the transverse beam 11 and the longitudinal beam 12, a gap 13 is formed between every two adjacent supporting beams, and the protective box is arranged in the gap 13.

Specifically, the bottom plate 10 may include two longitudinal beams 12 disposed opposite to each other in the transverse direction, and two transverse beams 11 disposed opposite to each other in the longitudinal direction, the transverse beams 11 being connected end to end with the longitudinal beams 12 to form a general frame of the bottom plate 10, and support beams filled inside the frame, which may be a plurality of support beams spaced apart in the longitudinal direction; the supporting beams can also be arranged in a plurality at intervals in the transverse direction; or the support beams include a plurality of beams spaced apart in the lateral direction and a plurality of beams spaced apart in the longitudinal direction to form a lattice-shaped support vein, ensuring the structural strength and stability of the floor panel 10.

Furthermore, mounting holes or projection welding nuts can be arranged on the supporting beams, the cross beams 11 and the longitudinal beams 12, electrical equipment such as an inverter 30 and a transformer 40 can be fixed on the supporting beams, the cross beams 11 or the longitudinal beams 12, the low-voltage side of the inverter 30 is connected with the low-voltage side of the transformer 40, the low-voltage side electrical connector is arranged in a protective box, and the protective box is positioned in a gap 13 between adjacent supporting beams, so that on one hand, the space occupation can be improved; on the other hand, the wiring position is located below the inverter 30, wiring is convenient, the shell part of the inverter 30 can be shielded and protected above the electric connector on the low-voltage side, and the use safety of the inverter all-in-one machine 100 can be effectively improved.

As shown in fig. 2, according to some embodiments of the present invention, the case 20 has an air inlet 21 and an air outlet 22 communicating with each other for cooling the transformer 40.

Specifically, an air inlet 21 is disposed on one side of the box 20, an air outlet 22 is disposed on the opposite side for cooling the transformer 40, and the air inlet 21 and the air outlet 22 are disposed on different sides of the box 20.

Therefore, air flow can be introduced from the air inlet 21 and exhausted from the air outlet 22, so that forced air cooling heat exchange on the transformer 40 is realized, the cooling effect on the transformer 40 is improved, and the working stability and safety of the inverter all-in-one machine 100 are improved.

Illustratively, the high-pressure air cabinet 50 and the inverter 30 are located at the left and right sides or the front and back sides of the box 20, and the corresponding air inlet 21 and the corresponding air outlet 22 are located at the front and back sides or the left and right sides of the box 20, so that the air inlet 21 and the air outlet 22 are spaced apart from the high-pressure air cabinet 50 and the inverter 30, which can prevent the heat dissipation airflow from acting on the inverter 30 or the high-pressure air cabinet 50, and can also prevent the air with higher temperature in the area of the inverter 30 or the high-pressure air cabinet 50 from entering the box 20, thereby improving the heat dissipation effect, and simultaneously avoiding the influence on the electrical components at the peripheral side of the box 20 in the heat dissipation process, so as to take into account the working stability of the inverter all-in-one machine 100 and the heat dissipation performance of the transformer 40.

As shown in fig. 3, a third protection member 90 is provided outside the outlet 21.

Specifically, the fan can set up on air outlet 21, or be located outside air outlet 21, and the fan outside sets up third prevention and protection piece 90, and third prevention and protection piece 30 is fixed on box 20, can ensure that box 20 reaches IP54 protection grade at least, and third prevention and protection piece 90 can be constructed for the panel beating material, is attached with waterproof rubber strip on it, the bottom sets up dustproof cotton, satisfies outdoor service conditions, guarantees that rainwater, foreign matter can not enter into inside the box 20, improves the reliable protection to transformer 40.

Further, a grille is arranged on the area of the air inlet 21, and a fan 23 is arranged adjacent to the air outlet 22. Therefore, foreign matters can be prevented from entering the box body 20 through the arrangement of the grating, and the fan 23 can realize forced air cooling heat dissipation, so that the heat dissipation effect on the transformer 40 is improved.

According to some embodiments of the present invention, the inverter all-in-one machine 100 further comprises: and a shield case in which a low-voltage side electric connection member of the inverter 30 is disposed and electrically connected to a low-voltage side of the transformer 40.

That is, in order to further improve the safety of the inverter integrated machine 100, a protection box may be provided in which the low-voltage side electrical connector (i.e., the branch copper bar for connecting the inverter 30 to the transformer 40) is provided.

It can be understood that the inverter 30 of the embodiment of the present invention is suitable for outdoor use, the inverter 30 meeting the use requirement corresponding to the IP protection level may be selected, and the number of the inverters 30 may be multiple, one of the inverters 30 is used as a master, and the other ones are used as slaves, and the master controls the slaves, for example: the number of the inverters 30 is four, one is used as a master, the number of the inverters is three is used as a slave, and the electric connecting piece between the master and the slave and the electric connecting piece between the low-voltage side of the inverter 30 and the transformer 40 are arranged in the protective box, so that the stability and the safety of the electric connection among the inverters 30 can be improved.

It should be pointed out that the low pressure side electric connector that is located the protection box needs at least part to stretch out the protection box to be connected with transformer 40 low pressure side electricity, and set up first protection piece 60 between the low pressure side interface 24 of protection box and box 20, can realize the protection between inverter 30 and the box 20, ensure that box 20 satisfies the protection demand, so that the utility model discloses contravariant all-in-one 100 is applicable to the outdoor environment, can avoid getting into the foreign matter in the protection box simultaneously, intake even, improves inverter 30's safety in utilization.

Further, a second shielding member 70 is disposed between the high pressure air tank 50 and the cabinet 20.

Wherein, one side of the second protection member 70 is connected to the box 20 to block the high pressure side interface 25 at the box 20, and the other side of the second protection member 70 is connected to the body of the high pressure air tank 50 to achieve the sealing protection of the high pressure side.

It should be noted that, in some embodiments, the first protection part 60 and the second protection part 70 may be configured as sheet metal parts and used for blocking the corresponding interfaces, and the sheet metal parts are sealed with the protection box, the box body 20 and the cabinet body at the connected areas to improve the protection effect; in other embodiments, the first guard 60 and the second guard 70 may also be configured as flexible seals, such as: the rubber material piece with a wiring channel is arranged in a hollow way, and two ends of the rubber material piece are respectively connected with the protective box and the box body 20; or the box body 20 and the cabinet body are in interference fit to realize sealing.

Illustratively, as shown in fig. 4 and 5, the box 20 has a plurality of side plates and a top cover detachably disposed on the side plates, at least one side plate is provided with an openable and closable protection door, for example, at least two protection doors can be provided on the front and back sides; a low-pressure side plate is arranged on one side of the box body 20 close to the inverter 30, the low-pressure side plate is provided with a low-pressure side interface 24, the low-pressure side interface 24 is used for connecting the low-pressure side of the transformer 40 with a low-pressure electric connecting piece of the inverter 30, a sealing plate can be arranged on the low-pressure side interface 24, a first protection piece 60 is arranged between the low-pressure side interface 24 and the protection box, a high-pressure side plate is arranged on one side close to the high-pressure air cabinet 50, the high-pressure side plate is provided with a high-pressure side interface 25, the high-pressure side interface 25 is used for connecting the high-pressure side of the transformer 40 with a high-pressure side electric connecting piece of the high-pressure air cabinet 50, a sealing plate can be arranged on the high-pressure side interface 25, and a second protection piece 70 is arranged between the high-pressure side interface 25 and the high-pressure air cabinet 50; the side plate of the box body can also be provided with a secondary wire passing hole for communication connection among all electric parts; the box top is equipped with the top cap, is equipped with in the top cap and prevents that the condensation is cotton, and the top cap can be dismantled for transformer 40's installation is used. In the embodiment shown in fig. 1 and 2, the inverter all-in-one machine 100 further includes: the low-voltage power distribution cabinet 80 is arranged on the bottom plate 10, arranged on the same side as the high-pressure air cabinet 50 and electrically connected with the high-pressure air cabinet 50.

Specifically, the high-pressure air cabinet 50 and the low-voltage power distribution cabinet 80 need to be electrically connected, and therefore both are disposed on the same side, for example, the high-pressure air cabinet 50 and the low-voltage power distribution cabinet 80 are located on one longitudinal side of the bottom plate 10, and the inverter 30 is located on the other longitudinal side of the bottom plate 10, so as to facilitate the electrical connection between the high-pressure air cabinet 50 and the low-voltage power distribution cabinet 80, reduce the length of the electrical connection member, reduce the occupied space, and effectively reduce the cost.

Of course, the structure of the inversion all-in-one machine 100 of the embodiment of the present invention is not limited thereto, and in other embodiments, the low voltage distribution cabinet 80 may also be disposed on other suitable positions of the bottom plate 10, so that the arrangement of the inversion all-in-one machine 100 is more compact, and the space occupation is more reasonable.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An inversion all-in-one machine, comprising:

a base plate (10);

a box body (20), wherein the box body (20) is arranged on the bottom plate (10);

an inverter (30) and a transformer (40), the inverter (30) being disposed at one side of the case (20), the transformer (40) being disposed within the case (20), and a low voltage side of the transformer (40) being electrically connected to the inverter (30);

a high-pressure air cabinet (50), wherein the high-pressure air cabinet (50) is suitable for outdoor use, is positioned at two opposite sides of the box body (20) with the inverter (30) and is arranged on the bottom plate (10), and the high-pressure air cabinet (50) is electrically connected with the high-pressure side of the transformer (40).

2. The inversion all-in-one machine of claim 1, further comprising: and the low-voltage side electric connector of the inverter (30) is arranged in the protective box and is electrically connected with the low-voltage side of the transformer (40).

3. The inversion ensemble machine according to claim 2, characterized in that said base plate (10) comprises: the protective box comprises a cross beam (11) and a longitudinal beam (12) which are connected end to end, supporting beams are further arranged between the cross beam (11) and the longitudinal beam (12), a gap (13) is reserved between the adjacent supporting beams, and the protective box is arranged in the gap (13).

4. The all-in-one inverter according to claim 3, characterized in that a first guard (60) is arranged between the guard box and the box (20).

5. The inverting integrator of claim 1, wherein a second guard (70) is disposed between the high pressure air cabinet (50) and the cabinet (20).

6. The inversion all-in-one machine of claim 1, further comprising: the low-voltage distribution cabinet (80) is arranged on the bottom plate (10), arranged on the same side as the high-pressure air cabinet (50) and electrically connected with the high-pressure air cabinet (50).

7. The all-in-one inverter machine according to claim 1, wherein the box body (20) is provided with a plurality of side plates and a top cover which is detachably arranged above the side plates, and at least one side plate is provided with an openable and closable protective door.

8. The inverter-integrated machine according to claim 7, wherein the tank (20) has an air inlet (21) and an air outlet (22) communicating with each other for cooling the transformer (40).

9. The all-in-one inverter machine according to claim 8, wherein the air inlet (21) and the air outlet (22) are located on different sides of the box body (20).

10. The all-in-one inverter machine according to claim 8, wherein a grille is arranged in the area of the air inlet (21), a fan (23) is arranged adjacent to the air outlet (22), and a third protection piece (90) is arranged outside the air outlet (22).

11. The all-in-one inverter according to any one of claims 1 to 10, wherein the inverters (30) are arranged in sequence.