CN215773978U

CN215773978U - Power cabinet

Info

Publication number: CN215773978U
Application number: CN202121251851.5U
Authority: CN
Inventors: 兰祥金; 洪培在; 闫佳伟; 倪泽联
Original assignee: Zhangzhou Kehua Technology Co Ltd; Kehua Data Co Ltd
Current assignee: Xiamen Kehua Digital Energy Tech Co Ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-02-08
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a power cabinet with better heat dissipation capacity and suitable for cabinet combination, which comprises a cabinet body, and an inductance module, a power module, a first fan module and a second fan module which are arranged in the cabinet body; the surface of the cabinet body is provided with a first air port, a second air port, a third air port and three fourth air ports, and a first air channel and a second air channel which are mutually spaced are defined in the cabinet body; the inductance module and the power module are respectively arranged in the first air duct and the second air duct, and the power module is positioned above the third air opening and is suitable for being drawn out from the rear part of the cabinet body along the front-back direction; the first fan module is positioned in the first air channel and is arranged corresponding to the first air port; the second fan module is located in the second air duct and is arranged corresponding to the fourth air ports.

Description

Power cabinet

Technical Field

The utility model relates to the technical field of power equipment, in particular to a power cabinet.

Background

Power cabinets such as photovoltaic inverters, energy storage converters and the like generally include inductors and IGBT power modules, both of which have high heat dissipation requirements. The conventional power cabinet is usually provided with the inductor and the power module in the same vertical air duct, the inductor is usually arranged below the power cabinet due to weight, and the power module is usually arranged above the power cabinet due to wiring, so that hot air flows passing through the power module and the inductor are influenced mutually, and the whole cabinet cannot achieve a good heat dissipation level. In addition, for power expansion, the power cabinets also have a cabinet combination requirement, and thus, the power cabinets suitable for cabinet combination need to be provided on the basis of ensuring heat dissipation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a power cabinet which has better heat dissipation capacity and is suitable for cabinet combination.

In order to achieve the purpose, the technical scheme of the utility model is as follows: a power cabinet comprises a cabinet body, and an inductance module, a power module, a first fan module and a second fan module which are arranged in the cabinet body; the surface of the cabinet body is provided with a first air opening, a second air opening, a third air opening and three fourth air openings, the first air opening and the third air opening are positioned at the bottom of the cabinet body, the second air opening is positioned in the lateral middle of the cabinet body, the three fourth air openings are respectively positioned at the front top, the left top and the rear top of the cabinet body, and one of the fourth air openings and the second air opening are positioned on the same side surface of the cabinet body; a first air channel and a second air channel which are mutually spaced are further defined in the cabinet body, the first air channel is communicated with the first air opening and the second air opening, and the second air channel is communicated with the third air opening and the fourth air openings; the inductance module and the power module are electrically coupled with each other and are respectively arranged in the first air duct and the second air duct; the inductance module is arranged at the lower part of the cabinet body, and the power module is positioned above the third air opening and is suitable for being drawn out from the rear part of the cabinet body along the front-back direction; the first fan module is positioned in the first air channel and is arranged corresponding to the first air port, and drives airflow in the first air channel to flow; the second fan module is located in the second air duct and arranged corresponding to the fourth air ports, and drives airflow in the second air duct to flow.

Further, the cabinet body comprises a frame with a cubic structure, and a top plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate which are all fixedly connected to the frame; the first air port is arranged on the bottom plate; the third air port is arranged on the bottom plate or on the bottom of the front plate or the bottom of the rear plate; the three fourth air ports are respectively arranged at the tops of the front plate, the rear plate and the left side plate, and the second air port is arranged in the middle of the left side plate; or the three fourth air ports are respectively arranged at the tops of the front plate, the rear plate and the right side plate, and the second air port is arranged in the middle of the right side plate.

Further, the first air port and the second air port are respectively configured as an air inlet and an air outlet of the first air duct; the third air opening and each fourth air opening are respectively configured as an air inlet and an air outlet of the second air duct.

Further, the first fan module is an air supply fan, and the second fan module is an air exhaust fan.

Furthermore, a cover body covering the outside of the inductance module is fixedly arranged in the cabinet body; the first air channel is defined in the cover body, and the second air channel is defined between the cabinet body and the cover body.

Further, the first fan module is arranged in the cover body.

Furthermore, the power module comprises three power units arranged at intervals along the left-right direction, and each power unit comprises a radiator and a power device; the radiator is provided with a base body and a plurality of radiating teeth formed by extending the base body, and overflowing gaps are formed among the radiating teeth; the power device is arranged on the base body and establishes a heat conduction relation with the base body.

Further, the second fan module comprises a box body and a plurality of single fans; three air cavities are defined in the box body, each air cavity is provided with a corresponding air suction opening and an air exhaust opening, and each air cavity is internally provided with at least one single fan; the three air suction openings are respectively opposite to the overflowing gaps of the radiators; the three air outlets are respectively arranged at the front part, the left side part and the rear part of the box body and are respectively opposite to the three fourth air ports.

Furthermore, the three power units are three-phase inversion units respectively, and the power device is an IGBT tube.

Further, the power cabinet is a photovoltaic inverter cabinet.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the first air channel and the second air channel which are mutually spaced are formed in the power cabinet, the inductance module and the power module are respectively arranged in the first air channel and the second air channel, the heat dissipation air channels of the inductance module and the power module are mutually independent and do not influence each other, the second air channel is provided with three fourth air ports located at the top of the cabinet body, the top space of the cabinet body is fully utilized, the air volume is large, and the cabinet achieves a good heat dissipation level.

Moreover, because the second wind gap is located the same side surface of the cabinet body with the fourth wind gap that is located the cabinet body lateral part, other fourth wind gaps also all are located the front portion and the rear portion of the cabinet body, power module also takes out from cabinet body rear portion, therefore another side of the cabinet body has been left, another side relative with second wind gap place side promptly, this side both need not business turn over wind, also need not as the maintenance face, thereby can utilize this side to and other cabinets carry out the cabinet-combining, can not influence the work, the heat dissipation and the maintenance of power cabinet itself.

And the air inlet and outlet directions of the first air duct and the second air duct can be changed, so that the compatibility between the installation environment and the requirements of customers is good. Furthermore, because the second wind gap in first wind channel is located the side middle part of the cabinet body, can configure this second wind gap into the air outlet in first wind channel, compare in the air outlet in first wind channel and be located the scheme in middle part before the cabinet body, the condition that hot-blast from the dead ahead of rack blew out can not appear, accords with the industry design standard. And even if the second air inlet is configured to be the air inlet of the first air duct, the air inlet of the first air duct cannot be influenced because the second air inlet is positioned on the side opposite to the side face of the cabinet combination.

(2) The second air port and the fourth air port can be arranged on the left side plate of the cabinet body and can also be arranged on the right side plate of the cabinet body, compatibility is good, two power cabinets in mirror image with each other can be formed, and therefore cabinet combination is achieved by means of the right side face of one power cabinet and the left side face of the other cabinet.

(3) The first fan module and the second fan module are respectively configured as an air supply fan and an air exhaust fan, and an air path corresponding to the air channel can be constructed.

(4) The inductance module is covered by the cover body to form a first air channel, and a second air channel is formed between the cover body and the cabinet body, so that the first air channel and the second air channel can be effectively ensured to be mutually spaced and not mutually influenced.

(5) The first fan module is arranged in the cover body, the first fan module, the inductance module and the cover body can be integrally formed, modular production, manufacturing and assembly are achieved, and efficiency is high.

(6) The power module comprises the radiator and the power device, and can effectively radiate the heat of the power device.

(7) The box body of second fan module has three wind chamber, and every wind chamber all has the monomer fan, and the suction opening in three wind chamber corresponds the clearance that overflows of each radiator, and the air exit corresponds each fourth wind gap for each power unit all has the heat dissipation channel that corresponds separately, each other does not influence, and the temperature uniformity is good, and the radiating effect promotes greatly.

(8) The power unit is a three-phase inversion unit, and the power cabinet is a photovoltaic inversion cabinet, and is suitable for photovoltaic scenes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a perspective view of a power cabinet according to an embodiment of the present invention, wherein the top plate is hidden;

fig. 2 is another perspective view of a power cabinet according to an embodiment of the present invention, wherein the top panel and the right side panel are hidden;

fig. 3 is another perspective view of a power cabinet according to an embodiment of the present invention, wherein each cabinet panel is hidden;

FIG. 4 is a front view of a power cabinet with each panel hidden according to an embodiment of the present invention;

FIG. 5 is a perspective view of an inductor module, a shroud, and a first fan module of an embodiment of the utility model assembled with the inductor module shielded by the shroud;

FIG. 6 is a perspective view of an inductor module and a first fan module of an embodiment of the utility model after assembly;

FIG. 7 is a perspective view of a power cell in accordance with an embodiment of the present invention;

fig. 8 is a perspective view of a second fan module according to an embodiment of the present invention.

The main reference numbers: a cabinet body 10; a first tuyere 10A; a second tuyere 10B; a third tuyere 10C; a fourth tuyere 10D; a first air duct 10E; a second air duct 10F; a frame 11; a front plate 12; a rear plate 13; a left side panel 14; a cover body 15; an inductance module 20; a power module 30; a power unit 31; a heat sink 311; a base 3111; heat dissipation teeth 3112; an overcurrent gap 311A; a power device 312; a first fan module 40; a second fan module 50; a case 51; the wind chamber 51A; an air suction port 51B; an air outlet 51C; the monomer fan 52.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are presently preferred embodiments of the utility model and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the specification and the drawings of the present invention, unless otherwise specifically limited, the terms "fixedly connected" or "fixedly connected" should be understood in a broad sense, i.e., any connection mode without displacement relationship or relative rotation relationship between the two, i.e., including non-detachably fixed connection, and fixedly connected through other devices or elements.

Referring to fig. 1-4 in conjunction with the directional indicators shown therein, an embodiment of the present invention provides a power cabinet, which includes a cabinet 10, and an inductance module 20, a power module 30, a first fan module 40, and a second fan module 50 disposed in the cabinet 10. In this embodiment, the power cabinet is a photovoltaic inverter cabinet, and the power cabinet is connected to the dc power output by the photovoltaic substrate, and outputs ac power after conversion such as boosting and inversion, and is used for grid connection or directly supplying power to an ac load.

The surface of the cabinet body 10 is provided with a first air opening 10A, a second air opening 10B, a third air opening 10C and three fourth air openings 10D. The first air opening 10A and the third air opening 10C are located at the bottom of the cabinet 10, the second air opening 10B is located in the middle of the side of the cabinet 10, the three fourth air openings 10D are located at the front top, the side top and the rear top of the cabinet 10 respectively, and one of the fourth air openings 10D and the second air opening 10B are located on the same side surface of the cabinet 10. In other words, one fourth air opening 10D and the second air opening 10B are located on the same left side surface of the cabinet 10 or the same right side surface of the cabinet 10, and in this embodiment, the second air opening 10B and the corresponding fourth air opening 10D are located on the left side surface of the cabinet 10. It should be noted that "side" and "lateral" in the present invention refer to the left and right sides only, and the front-back direction is not included therein. In addition, a first air duct 10E and a second air duct 10F which are spaced from each other are defined in the cabinet 10, two ends of the first air duct 10E are respectively communicated with the first air opening 10A and the second air opening 10B, and the second air duct 10F is communicated with the third air opening 10C and the fourth air openings 10D.

The inductance module 20 and the power module 30 are electrically coupled to each other and respectively disposed in the first air duct 10E and the second air duct 10F. The inductance module 20 is disposed at the lower portion of the cabinet 10, and the power module 30 is disposed above the inductance module 20 and the third air inlet 10C and adapted to be slidably connected to the cabinet 10 in the front-rear direction after being unlocked and be drawn out from the rear portion of the cabinet 10, so as to facilitate maintenance thereof.

The first fan module 40 is located in the first air duct 10E and disposed corresponding to the first air opening 10A, and drives the airflow in the first air duct 10E to flow so as to dissipate heat of the inductor module 20. The second fan module 50 is located in the second air duct 10F and is disposed corresponding to each of the fourth air ports 10D, and drives the airflow in the second air duct 10F to flow so as to dissipate heat of the power module 30.

Therefore, a first air duct 10E and a second air duct 10F which are mutually spaced are formed in the power cabinet, the inductance module 20 and the power module 30 are respectively arranged in the first air duct 10E and the second air duct 10F, the heat dissipation air ducts of the inductance module and the power module are mutually independent and do not influence each other, the second air duct 10F is provided with three fourth air ports 10D which are positioned at the top of the cabinet body 10, the top space of the cabinet body 10 is fully utilized, the air volume is large, and the cabinet achieves a good heat dissipation level.

Moreover, because the second air opening 10B and the fourth air opening 10D located at the side of the cabinet body 10 are located at the same side surface of the cabinet body 10, the other fourth air openings 10D are also located at the front and the rear of the cabinet body 10, and the power module 30 is also drawn out from the rear of the cabinet body 10, the other side surface of the cabinet body 10 is reserved, namely the other side surface opposite to the side surface where the second air opening 10B is located, the side surface does not need to enter or exit air, and does not need to be used as a maintenance surface, so that the side surface and other cabinets can be combined, and the work, heat dissipation and maintenance of the power cabinet can not be influenced.

In addition, the air inlet and outlet directions of the first air duct 10E and the second air duct 10F can be changed, and the compatibility of the installation environment and the requirements of customers is good. Further, because the second air opening 10B of the first air duct 10E is located in the middle of the side of the cabinet body 10, the second air opening 10B can be configured as the air outlet of the first air duct 10E, and compared with the scheme that the air outlet of the first air duct 10E is located in the middle of the front of the cabinet body 10, the situation that hot air is blown out from the front of the cabinet does not occur, and the industrial design specification is met. Moreover, even if the second air inlet 10B is configured as an air inlet of the first air duct 10E, the second air inlet 10B is located at a side opposite to the cabinet combination side, so that the air inlet of the first air duct 10E is not affected.

In a specific structure, the cabinet 10 includes a frame 11 having a cubic structure and a plurality of cabinet panels all fixedly connected to the frame 11, and the plurality of cabinet panels include a top panel (not shown in the figure), a bottom panel, a front panel 12, a rear panel 13, a left side panel 14, and a right side panel (not shown in the figure). The first air opening 10A is formed in the bottom plate, the third air opening 10C is formed in the bottom of the front plate 12, the three fourth air openings 10D are formed in the tops of the front plate 12, the rear plate 13 and the left side plate 14 respectively, and the second air opening 10B is formed in the middle of the left side plate 14. In other embodiments, the third tuyere 10C can be further disposed at the bottom of the bottom plate or the rear plate 13, and the three fourth tuyeres 10D can be also disposed at the top of the front plate 12, the rear plate 13 and the right side plate, respectively, and the second tuyere 10B is disposed at the middle of the right side plate. Therefore, the second air opening 10B and the fourth air opening 10D can be disposed on the left side plate 14 of the cabinet 10, and can also be disposed on the right side plate of the cabinet 10, so that the compatibility is good, and two power cabinets which are mirror images of each other can be formed, thereby realizing cabinet combination by using the right side surface of one power cabinet and the left side surface of the other cabinet.

In this embodiment, the first air opening 10A and the second air opening 10B are respectively configured as an air inlet and an air outlet of the first air duct 10E, and the third air opening 10C and each of the fourth air openings 10D are respectively configured as an air inlet and an air outlet of the second air duct 10F. Specifically, the first fan module 40 is an air supply fan, and the second fan module 50 is an air exhaust fan, so as to construct an air path corresponding to the air duct.

Referring to fig. 5 to 6, a cover body 15 covering the inductor module 20 is further fixedly disposed in the cabinet body 10, the first air duct 10E is defined in the cover body 15, and the second air duct 10F is defined between the cabinet body 10 and the cover body 15, so that the first air duct 10E and the second air duct 10F are effectively ensured to be spaced and not mutually influenced. In addition, the first fan module 40 is arranged in the cover body 15, so that the first fan module 40, the inductance module 20 and the cover body 15 can form a whole as shown in fig. 5, the modular production and assembly are realized, and the efficiency is high. The cover body 15 further has two air passing ports which are arranged opposite to the first air port 10A and the second air port 10B.

Referring to fig. 7 to 8, the power module 30 includes three power units 31 spaced apart in the left-right direction, and each power unit 31 includes a heat sink 311 and a power device 312. The heat sink 311 includes a base 3111 and a plurality of heat dissipation teeth 3112 formed by extending the base 3111, and a flow passage gap 311A is formed between the heat dissipation teeth 3112. The power device 312 is disposed on the base 3111 and is in heat-conducting relationship with the base 3111 to be dissipated by the heat sink 311. In this embodiment, the three power units 31 are three-phase inverter units, and the power device 312 is an IGBT.

Preferably, the second fan module 50 includes a box 51 and a plurality of single fans 52. Three air cavities 51A are defined in the box body 51, each air cavity 51A is provided with a corresponding air suction opening 51B and an air exhaust opening 51C, and at least one single fan 52 is arranged in each air cavity 51A. The three air suction ports 51B are respectively disposed opposite to the flow passing gap 311A of the heat sink 311, and the three air exhaust ports 51C are respectively disposed at the front, left, and rear portions of the box body 51, and are respectively disposed opposite to the three fourth air ports 10D. In other words, the box body 51 of the second fan module 50 has three air cavities 51A, each air cavity 51A has a single fan 52, the suction openings 51B of the three air cavities 51A correspond to the respective flow passing gaps 311A of the respective heat sinks 311, and the exhaust openings 51C correspond to the respective fourth air openings 10D, so that each power unit 31 has respective corresponding heat dissipation channels, which are not mutually affected, the temperature uniformity is good, and the heat dissipation effect is greatly improved.

The description of the above specification and examples is intended to be illustrative of the scope of the present invention and is not intended to be limiting. Modifications, equivalents and other improvements which may occur to those skilled in the art and which may be made to the embodiments of the utility model or portions thereof through a reasonable analysis, inference or limited experimentation, in light of the common general knowledge, the common general knowledge in the art and/or the prior art, are intended to be within the scope of the utility model.

Claims

1. A power cabinet, characterized by: the intelligent cabinet comprises a cabinet body, and an inductance module, a power module, a first fan module and a second fan module which are arranged in the cabinet body;

the surface of the cabinet body is provided with a first air opening, a second air opening, a third air opening and three fourth air openings, the first air opening and the third air opening are positioned at the bottom of the cabinet body, the second air opening is positioned in the lateral middle of the cabinet body, the three fourth air openings are respectively positioned at the front top, the lateral top and the rear top of the cabinet body, and one of the fourth air openings and the second air opening are positioned on the same side surface of the cabinet body; a first air channel and a second air channel which are mutually spaced are further defined in the cabinet body, the first air channel is communicated with the first air opening and the second air opening, and the second air channel is communicated with the third air opening and the fourth air openings;

the inductance module and the power module are electrically coupled with each other and are respectively arranged in the first air duct and the second air duct; the inductance module is arranged at the lower part of the cabinet body, and the power module is positioned above the third air opening and is suitable for being drawn out from the rear part of the cabinet body along the front-back direction;

the first fan module is positioned in the first air channel and is arranged corresponding to the first air port, and drives airflow in the first air channel to flow; the second fan module is located in the second air duct and arranged corresponding to the fourth air ports, and drives airflow in the second air duct to flow.

2. A power cabinet in accordance with claim 1, wherein: the cabinet body comprises a frame with a cubic structure, and a top plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate which are all fixedly connected to the frame;

the first air port is arranged on the bottom plate; the third air port is arranged on the bottom plate or on the bottom of the front plate or the bottom of the rear plate;

the three fourth air ports are respectively arranged at the tops of the front plate, the rear plate and the left side plate, and the second air port is arranged in the middle of the left side plate; or

The three fourth air ports are respectively arranged at the tops of the front plate, the rear plate and the right side plate, and the second air port is arranged in the middle of the right side plate.

3. A power cabinet as claimed in claim 2, wherein: the first air opening and the second air opening are respectively configured as an air inlet and an air outlet of a first air duct; the third air opening and each fourth air opening are respectively configured as an air inlet and an air outlet of the second air duct.

4. A power cabinet as claimed in claim 3, wherein: the first fan module is an air supply fan, and the second fan module is an air exhaust fan.

5. The power cabinet of any one of claims 1-4, wherein: a cover body covering the outside of the inductance module is fixedly arranged in the cabinet body; the first air channel is defined in the cover body, and the second air channel is defined between the cabinet body and the cover body.

6. The power cabinet of claim 5, wherein: the first fan module is arranged in the cover body.

7. The power cabinet of any one of claims 1-4, wherein: the power module comprises three power units arranged at intervals along the left-right direction, and each power unit comprises a radiator and a power device; the radiator is provided with a base body and a plurality of radiating teeth formed by extending the base body, and overflowing gaps are formed among the radiating teeth; the power device is arranged on the base body and establishes a heat conduction relation with the base body.

8. A power cabinet as claimed in claim 7, wherein: the second fan module comprises a box body and a plurality of single fans;

three air cavities are defined in the box body, each air cavity is provided with a corresponding air suction opening and an air exhaust opening, and each air cavity is internally provided with at least one single fan;

the three air suction openings are respectively opposite to the overflowing gaps of the radiators; the three air outlets are respectively arranged at the front part, the left side part and the rear part of the box body and are respectively opposite to the three fourth air ports.

9. A power cabinet as claimed in claim 7, wherein: the three power units are three-phase inversion units respectively, and the power device is an IGBT tube.

10. A power cabinet in accordance with claim 1, wherein: the power cabinet is a photovoltaic inverter cabinet.