CN223730052U - Energy storage inverter cabinet - Google Patents

Abstract

The utility model provides an energy storage inverter cabinet, which belongs to the technical field of electrical equipment and comprises a cabinet body, a plurality of groups of inverter modules, a heat exchanger and an air guide assembly. The cabinet body is provided with a closed cavity, the length direction of the cabinet body is defined as a first direction, the width direction of the cabinet body is defined as a second direction, the multiphase inversion modules are distributed in the closed cavity at intervals along the second direction, a flow passage is formed between every two adjacent inversion modules, the flow passage extends along the first direction, the heat exchanger is arranged on a side plate of the cabinet body perpendicular to the first direction, the heat exchanger is provided with an inner circulation air outlet and an inner circulation air return opening, the inner circulation air outlet and the inner circulation air return opening face each flow passage, and the air guide component is arranged in the closed cavity. The air guide assembly is used for guiding air flow to form circulating flow in each flow passage, increasing the air flow path to completely flow through the surface of each inversion module, improving the heat dissipation efficiency of the inversion module and ensuring uniform heat dissipation of each phase of inversion module.

Description

Energy storage inverter cabinet

Technical Field

The utility model belongs to the technical field of electrical equipment, and particularly relates to an energy storage inverter cabinet.

Background

The energy storage inverter is equipment for converting a direct-current power supply into an alternating-current power supply and is mainly applied to energy storage equipment of a photovoltaic, wind energy and nuclear energy power generation system. Because some energy storage inverters are generally applied to severe environments such as high temperature, high humidity, high dust and the like, in order to protect power devices inside the energy storage inverters, the energy storage inverters are required to have high sealing performance and high protection level, and therefore, only closed heat dissipation can be adopted inside the energy storage inverters.

For high-power energy storage inverter cabinets, power devices such as a multiphase inversion module, a reactance module, a capacitor busbar module and the like are generally included. The closed cavity of the cabinet can form airflow circulation flow so as to take away heat of the power device and dissipate heat of the power device. Because the multiphase inversion module occupies a part of the inner cavity of the cabinet, all the electric components cannot be guaranteed to be positioned on the path of the airflow circulation flow, so that the heat dissipation effect is poor and the heat dissipation is uneven.

Disclosure of utility model

The utility model aims to provide an energy storage inverter cabinet, which aims to solve the technical problems of poor radiating effect and uneven radiating of an inversion module of a high-power energy storage inverter cabinet in the prior art.

In order to achieve the above purpose, the utility model adopts the technical scheme that an energy storage inverter cabinet is provided, which comprises:

The cabinet body is provided with a closed cavity, and the length direction of the cabinet body is defined as a first direction, and the width direction is defined as a second direction;

the multi-phase inversion modules are arranged in the closed cavity at intervals along the second direction, and a current passage is formed between every two adjacent groups of inversion modules and extends along the first direction;

The heat exchanger is arranged on a side plate of the cabinet body, which is perpendicular to the first direction, and is provided with an internal circulation air outlet and an internal circulation air return opening, the internal circulation air outlet and the internal circulation air return opening face each flow passage, and

The air guide assembly is arranged in the closed cavity and used for guiding airflow to form circulating flow in each flow passage.

In one possible implementation manner, a heat dissipation space exists between the heat exchanger and the multi-phase inversion module, and the air guide assembly is transversely arranged in each overcurrent channel, and one end of the air guide assembly extends into the heat dissipation space and is transversely arranged between the inner circulation air outlet and the inner circulation air return opening.

In some embodiments, the air guide assembly includes:

A partition board transversely arranged in the heat dissipation space for partitioning the inner circulation air outlet and the inner circulation air return opening, and

The air deflectors are respectively connected with the partition plate, and are transversely arranged in the plurality of the flow passage channels in one-to-one correspondence.

In one possible implementation, the energy storage inverter cabinet further includes:

The wind shielding assembly is arranged on one side of the multi-phase inversion module far away from the heat exchanger, two ends of the wind shielding assembly respectively extend to the periphery of the multi-phase inversion module in the second direction, and the wind shielding assembly is used for redirecting and refluxing air flow output from the internal circulation air outlet to the internal circulation air return opening.

In some embodiments, the inverter module, the heat exchanger and the wind shielding assembly are all disposed along a height direction of the cabinet body, and the internal circulation air outlet is located below the internal circulation air return opening.

In some embodiments, the heat exchanger further has an external circulation air inlet and an external circulation air outlet facing the outside, respectively, the external circulation air inlet being located below the external circulation air outlet;

the inner circulation air outlet is provided with a first fan, and the outer circulation air outlet is provided with a second fan.

In some embodiments, the inverter module includes:

primordial qi piece group, and

The radiator is arranged by being attached to the element assembly;

The sealed cavity is internally provided with a plurality of groups of heat dissipation air channels which are in one-to-one correspondence with the radiators, the radiators are positioned in the corresponding heat dissipation air channels, and the flow passage is formed between every two adjacent groups of heat dissipation air channels.

In some embodiments, the upper end of the wind shielding component protrudes upwards from the primordial qi component group, and the protruding part of the wind shielding component is provided with a wind through hole, and the wind through hole is communicated with each of the flow through channels.

In some embodiments, the air element group includes an upper air element and a lower air element, where the upper air element is located above the air guide assembly and corresponds to the air passing hole in the first direction, and the heat productivity of the upper air element is greater than that of the lower air element.

In some embodiments, the air inlet end of the heat dissipation air duct extends downwards to the lower part of the element group, and a total air inlet duct is further arranged in the closed cavity and connected with the air inlet end of each heat dissipation air duct and positioned right below the radiator.

Compared with the prior art, the energy storage inverter cabinet has the advantages that the multiphase inverter modules are arranged in the closed cavity, the use requirements of high sealing performance and high protection level of the cabinet can be met, a plurality of through-flow channels are formed between the multiphase inverter modules at intervals, the inner circulation air outlet and the inner circulation air return outlet of the heat exchanger face each through-flow channel, and the air guide assembly is arranged and used for guiding air flow to form circulation flow in each through-flow channel, so that the air flow path is increased, the air flow completely flows through the surfaces of each inverter module, the heat dissipation efficiency of the inverter modules is improved, and the uniform heat dissipation of each phase of inverter modules is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an energy storage inverter cabinet (a left side plate of a cabinet body is not shown in the drawing) according to an embodiment of the present utility model;

Fig. 2 is a schematic structural diagram of a second energy storage inverter cabinet (a left side plate of a cabinet body is not shown in the drawing) according to an embodiment of the present utility model;

FIG. 3 is a front view of FIG. 1;

fig. 4 is a schematic structural diagram of a multiphase inverter module of an energy storage inverter cabinet according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an air guiding assembly of an energy storage inverter cabinet according to an embodiment of the present utility model.

In the figure:

1. A cabinet body; 11, a closed cavity, 12, a through-flow channel, 13, a heat dissipation space, 14, a heat dissipation air channel, 15, a total air inlet channel, 16 and a total air outlet channel;

2. an inversion module; 21, a primordial qi piece group, 211, an upper primordial qi piece, 212, a lower primordial qi piece;

3. a heat exchanger; 31, an inner circulation air outlet, 32, an inner circulation air return inlet, 33, an outer circulation air inlet, 34, an outer circulation air outlet, 35, a first fan;

4. The air guide assembly comprises 41, a partition plate, 42 and an air guide plate;

5. and 51, a wind shielding assembly and a wind passing hole.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, an energy storage inverter cabinet provided by the present utility model will now be described. The energy storage inverter cabinet comprises a cabinet body 1, a plurality of groups of inverter modules 2, a heat exchanger 3 and an air guide assembly 4. The cabinet body 1 is provided with a closed cavity 11, the length direction of the cabinet body 1 is defined as a first direction, the width direction of the cabinet body 1 is defined as a second direction, the multiphase inversion modules 2 are distributed in the closed cavity 11 at intervals along the second direction, the two adjacent groups of inversion modules 2 form a through-flow channel 12, the through-flow channel 12 extends along the first direction, the heat exchanger 3 is arranged on a side plate of the cabinet body 1 perpendicular to the first direction, the heat exchanger 3 is provided with an inner circulation air outlet 31 and an inner circulation air return 32, the inner circulation air outlet 31 and the inner circulation air return 32 face each through-flow channel 12, and the air guide assembly 4 is arranged in the closed cavity 11 and used for guiding air flow to form circulation flow in each through-flow channel 12.

The cabinet body 1 is of a cuboid structure and consists of a front side plate, a rear side plate, a left side plate, a rear side plate, a top plate, a bottom plate and a supporting frame for connecting and supporting the plates. The cabinet body 1 has a closed cavity 11, which can be understood that the six plates of the cabinet body 1 can enclose the closed cavity 11, or the six plates of the cabinet body 1 are matched with other plates in the cabinet body 1 to enclose the closed cavity 11. The closed cavity 11 is not communicated with the outside, so that the closed cavity 11 has high sealing performance and high protection level, can be applied to severe environments such as high temperature, high humidity, high dust and the like, and meets the use requirements of the electric element group.

The heat exchanger 3 is preferably an air-air heat exchanger 3, and is provided with a heat exchange core body, the heat exchanger 3 can introduce external cold air and also can recycle hot air of the closed cavity 11, and the external cold air takes away heat of the hot air in the closed cavity 11 passing through the heat exchange core body after passing through the heat exchange core body, so that the temperature of the hot air is reduced. It should be noted that, the external cold air and the hot air circulating in the air flow of the closed cavity 11 are separated, and the two air flows do not cross each other.

The heat exchanger 3 only has an inner circulation air outlet 31 and an inner circulation air return opening 32, and air flow in the closed cavity 11 enters the heat exchanger 3 through the inner circulation air return opening 32, and enters the closed cavity 11 from the inner circulation air outlet 31 after heat exchange and temperature reduction of the heat exchange core.

Since the air flow is to form an air flow circulation flow in the closed cavity 11, and the air flow is to exchange heat through the heat exchanger 3, in order to increase the path of the air flow circulation flow, the sequential flow generally flows through the length direction and the up-down direction of the closed cavity 11. Then, in order to adapt to the structure of the closed cavity 11 and the path of the circulating airflow, the inverter modules 2 of each phase are arranged along the length direction of the cabinet body 1 (which can be regarded as that the main heat-generating outer surfaces of the inverter modules 2 of each phase are parallel to the front-back direction of the cabinet body 1), and are spaced along the width direction.

Because the multiphase inversion modules 2 are distributed at intervals, the circulation channels 12 can be formed between every two adjacent heat dissipation air channels 14, in addition, ventilation spaces are also formed between the leftmost inversion module 2 and the left side plate of the cabinet body 1, each circulation channel 12 is respectively communicated with the internal circulation air outlet 31 and the internal circulation air return 32, part of cold air output by the internal circulation air outlet 31 blows the heating outer surface of each phase inversion module 2 through each circulation channel 12 and the ventilation spaces, heat is taken away, and uniform heat dissipation of each phase inversion module 2 is ensured.

The air guide assembly 4 is used for guiding airflow to form circulating flow around the surface of each phase of inverter module 2. The wind guiding component 4 may be in a form of a fan combination, a form of a partition board combination to isolate the wind guiding channel, or a form of a fan combination plus a partition board combination, and the specific form of the wind guiding component 4 is not limited in this embodiment, so long as it enables the airflow to pass through each of the flow channels 12 and form a circulating flow.

Compared with the prior art, the energy storage inverter cabinet provided by the utility model has the advantages that the multiphase inverter modules 2 are arranged in the closed cavity 11, the use requirements of high sealing performance and high protection level of the cabinet can be met, the multiphase inverter modules 2 are spaced and a plurality of through-flow channels 12 are formed, the inner circulation air outlet 31 and the inner circulation air return 32 of the heat exchanger 3 face each through-flow channel 12, the air guide assembly 4 is arranged and used for guiding air flow to form circulation flow in each through-flow channel 12, the air flow path is increased, the air flow completely flows through the surfaces of each inverter module 2, the heat dissipation efficiency of the inverter modules 2 is improved, and the uniform heat dissipation of each phase inverter module 2 is ensured.

In some embodiments, the air guiding assembly 4 may have a structure as shown in fig. 1 to 4, referring to fig. 1 and 4, a heat dissipation space 13 is between the heat exchanger 3 and the multiphase inverter module 2, and the air guiding assembly 4 is transversely disposed in each of the through-flow channels 12, and one end of the air guiding assembly extends into the heat dissipation space 13 and is transversely disposed between the inner circulation air outlet 31 and the inner circulation air return 32.

The air guide assembly 4 is transversely arranged between the inner circulation air outlet 31 and the inner circulation air return opening 32 and is used for blocking the inner circulation air outlet 31 and the inner circulation air return opening 32, and air flow directly flows back to the inner circulation air return opening 32 and is broken, and only flows out from the inner circulation air outlet 31 and then flows to the flow passage 12. The air guide assemblies 4 are also disposed transversely within each of the flow passages 12 for directing air flow thereabout to circulate.

Compared with the mode of using a fan for drainage, the air guide assembly 4 is transversely arranged in each flow passage 12, is convenient to assemble, does not occupy the space of the closed cavity 11 additionally, has definite flow guide path of the air guide assembly 4, and can ensure that air flow forms circulating flow in each flow passage 12 and completely passes through the heating surface of each phase of inversion module 2.

In some embodiments, the air guiding assembly 4 may have a structure as shown in fig. 4 and 5, referring to fig. 4 and 5, where the air guiding assembly 4 includes a partition plate 41 and a plurality of air guiding plates 42, the partition plate 41 is transversely disposed in the heat dissipation space 13 and is used for partitioning the inner circulation air outlet 31 and the inner circulation air return 32, the plurality of air guiding plates 42 are respectively connected with the partition plate 41, and the plurality of air guiding plates 42 are transversely disposed in the plurality of air passing channels 12 in a one-to-one correspondence manner.

The partition plate 41 and the air deflectors 42 are integrally formed, and the surfaces of the partition plate 41 and the air deflectors 42 are perpendicular to the flow direction of the air flow output by the internal circulation air outlet 31. The partition board 41 is transversely arranged in the heat dissipation space 13 and is used for blocking the inner circulation air outlet 31 and the inner circulation air return 32, so that the air flow can be ensured to directly flow back and open, and can only flow to each inverter module 2 after passing through the inner circulation air outlet 31. The air deflector 42 is transversely arranged on the air passage 12 and is used for blocking the air passage 12 so that air flow can flow in the air passage to form circulation, thereby increasing the air flow path and improving the heat dissipation efficiency of the inverter module 2.

Preferably, the air deflector 42 is provided at a central portion in the up-down direction of the inverter module 2, and the lateral direction of the air deflector 42 and the partition plate 41 is substantially parallel to the air outlet direction of the inner circulation air outlet 31. If the air outlet direction is inclined downward, the air deflector 42 and the partition plate 41 are inclined downward from the rear to the front.

The air guide component 4 adopts a plate-shaped structure, is simple in structure and convenient to assemble, does not occupy the space of the closed cavity 11 additionally, does not interfere with the inversion module 2, has a definite flow guide path, and can ensure that air flows form circulating flow in each flow passage 12 and completely pass through the heating surface of each phase of inversion module 2.

In some embodiments, the energy storage inverter cabinet may further adopt a structure as shown in fig. 1 to 4, and referring to fig. 1 to 4, the energy storage inverter cabinet further includes a wind shielding assembly 5. The wind shielding component 5 is arranged on one side of the multiphase inversion module 2 away from the heat exchanger 3, and in the second direction, two ends of the wind shielding component 5 respectively extend to the periphery of the multiphase inversion module 2, and the wind shielding component 5 is used for redirecting and refluxing the air flow output from the inner circulation air outlet 31 to the inner circulation air return opening 32.

Specifically, in the air outlet direction of the inner circulation air outlet 31, the wind shielding assembly 5 is disposed downstream of the inverter module 2, and the wind guiding assembly 4 is disposed vertically to the wind shielding assembly 5 or is disposed slightly inclined with respect to the vertical. A gap exists between one end of the wind guide assembly 4 and the panel surface of the wind shielding assembly 5 for allowing air flow to pass through.

Specifically, the cold air output from the internal circulation air outlet 31 passes through the half part of each flow passage 12 along the air guide assembly 4, flows through the surface of the inverter module 2, takes away the heat of the inverter module 2, and dissipates the heat. After encountering the wind shielding component 5, the airflow is redirected, and under the action of the heat exchanger 3, the airflow passes through the rest half parts of the flow channels 12 along the air guiding component 4, flows through the surface of the inversion module 2 again, takes away the heat of the inversion module 2, dissipates the heat of the inversion module, finally enters the internal circulation return air inlet 32, enters the heat exchange core for heat exchange, and completes one circulation.

The wind shielding component 5 is not only used for changing the airflow direction, but also can separate the closed cavity 11, so that the multiphase inverter module 2 is integrated in the space surrounded by the wind shielding component 5 and the side plate of the cabinet body 1, and in addition, other components can be arranged on the leeward side of the wind shielding component 5 so as to improve the space utilization rate of the closed cavity 11 and meet the design requirement of a high-power mechanism.

Preferably, the heat exchanger 3, the multiphase inversion module 2 and the wind shielding assembly 5 are positively corresponding in the first direction and are sequentially distributed, and are arranged in a staggered manner relative to the heat exchanger 3 and the multiphase inversion module 2, and cold air output by the internal circulation air outlet 31 is directly blown to each flow passage 12 along the first direction, so that the space utilization rate of the closed cavity 11 can be improved, and the cold air can be concentrated to radiate heat of the inversion module 2 with large heating value.

In some embodiments, the energy storage inverter cabinet further adopts a structure as shown in fig. 1 to 3, referring to fig. 1 to 3, where the inverter module 2, the heat exchanger 3 and the wind shielding assembly 5 are all disposed along the height direction of the cabinet body 1, and the inner circulation air outlet 31 is located below the inner circulation air return 32. Specifically, the inverter module 2 is disposed at the upper half portion of the closed cavity 11, and the heat exchanger 3 is disposed back to the upper half portion of the side plate of the cabinet 1.

The heat exchanger 3 and the inversion modules 2 are arranged along the height direction of the cabinet body 1, the inner circulation air return opening 32 is positioned above the inner circulation air outlet 31, the flow trend of hot air rising naturally and cold air sinking naturally is met, other fans are not required to be arranged in the closed cavity 11 corresponding to each phase of inversion modules 2, and the structures of the air guide assembly 4 and the wind shielding assembly 5 for guiding air flow to flow circularly are further simplified.

Referring to fig. 1 and 2, based on the above embodiment, the heat exchanger 3 further has an external circulation air inlet 33 and an external circulation air outlet 34 facing the outside, the external circulation air inlet 33 is located below the external circulation air outlet 34, the internal circulation air outlet 31 is provided with a first fan 35, and the external circulation air outlet 34 is provided with a second fan.

Specifically, the heat exchanger 3 is arranged on the back of the upper half part of the rear side plate of the cabinet body 1, and the inner circulation air outlet 31 and the inner circulation air return 32 face the front side plate of the cabinet body 1.

The above-mentioned limitation is to use the front door panel of the cabinet body 1 as a reference standard after the cabinet body 1 is installed, and generally, the cabinet body 1 is provided with a front door panel (i.e., a front side panel), and the front door panel can be opened to maintain the electrical components. An operation panel is also arranged on the front door plate.

Since the heat exchanger 3 is preferably disposed on the side plate perpendicular to the first direction, it can be understood that the plate surface of the rear side plate is perpendicular to the longitudinal direction of the cabinet 1, and the plate surfaces of the left side plate and the right side plate are perpendicular to the width direction of the cabinet 1.

The heat exchanger 3 of this embodiment is provided on the rear side plate, can be shielded by the cabinet body 1, and the external circulation air inlet 33 and the external circulation air outlet 34 are both directed toward the rear of the cabinet body 1, without affecting the operation of the front control panel.

Specifically, the air flow in the closed cavity 11 enters the heat exchanger 3 through the inner circulation air return port 32, and enters the closed cavity 11 from the inner circulation air outlet port 31 after the heat exchange and the temperature reduction of the core body. The external air flow enters the heat exchanger 3 from the external circulation air inlet 33, passes through the core body to take away heat, so as to reduce the temperature of the core body, and then flows out of the heat exchanger 3 from the external circulation air outlet 34.

The inner circulation air return opening 32 is positioned above the inner circulation air outlet 31, and accords with the flowing trend of the natural sinking of the cold air. The external circulation air inlet 33 is positioned below the external circulation air outlet 34, and accords with the natural rising flow trend of the hot air.

The first fan 35 is arranged at the internal circulation air outlet 31 to increase the air outlet speed to the closed cavity 11. The outer circulation air outlet 34 is provided with a second fan to increase the flow rate and flow rate of the external air flow through the heat exchange core.

In some embodiments, the inverter module 2 may have a structure as shown in fig. 1 to 4, and referring to fig. 1 to 4, the inverter module 2 includes a meta-air group 21 and a radiator, and the radiator is disposed to fit the meta-air group 21. The closed cavity 11 is also provided with a plurality of groups of heat dissipation air channels 14 which are in one-to-one correspondence with the radiators, the radiators are positioned in the corresponding heat dissipation air channels 14, and a through-flow channel 12 is formed between every two adjacent groups of heat dissipation air channels 14.

Because the inverter module 2 is the main power device of this energy storage inverter rack, its calorific capacity is big, in order to further promote its radiating efficiency, and inverter module 2 is equipped with solitary radiator, and the radiator sets up with inverter module 2 laminating, and the radiator can take away the heat that inverter module 2 sent.

Specifically, the radiator includes a plurality of radiating fins arranged at intervals, the radiator is generally a low protection level device, and is not required to be arranged in the closed cavity 11, and the radiator is required to be continuously introduced with cold air to absorb heat, so that the radiator is arranged in the radiating air duct 14, the radiating air duct 14 is also arranged in the closed cavity 11, but is communicated with the outside (the air inlet and the air outlet of the radiating air duct 14 are respectively communicated with the outside), and the outside cold air is introduced into the radiating air duct 14 to directly blow the radiator so as to take away the heat of the inverter module 2.

Note that, since the radiator is surrounded by the heat radiation air duct 14, the specific structure of the radiator is not shown in the drawing.

In some embodiments, the structure shown in fig. 1 and 2 may be adopted between the wind shielding component 5 and the element assembly 21, referring to fig. 1 and 2, the upper end of the wind shielding component 5 protrudes upward from the element assembly 21, and the protruding portion of the wind shielding component 5 is provided with a wind passing hole 51, and the wind passing hole 51 is communicated with each of the flow passing channels 12.

Preferably, the wind shielding assembly 5 has a plate structure, and the plate surface thereof is perpendicular to the first direction, so as to reduce the occupied space.

Since the leeward side of the wind shielding assembly 5 may be provided with other elements, the wind shielding assembly 5 may also serve as a mounting substrate for the other elements. In order to ensure the heat dissipation of other elements, the other elements also need to have airflow passing through, and another circulation flow is formed by taking the heat exchanger 3 as a reference.

The upper end of the wind shielding assembly 5 protrudes, and the wind passing holes 51 are provided, so that the other circulating airflow can also enter the upper parts of the circulating channels 12 (namely the parts above the wind shielding assembly 5) in a concentrated manner, and blow through the inverter module 2 to further dissipate heat of the inverter module 2.

In some embodiments, the air element group 21 may have a structure as shown in fig. 3 and 4, referring to fig. 3 and 4, where the air element group 21 includes an upper air element 211 and a lower air element 212, the upper air element 211 is located above the air guiding assembly 4 and corresponds to the air passing hole 51 in the first direction, and the heat generation amount of the upper air element 211 is greater than that of the lower air element 212.

For the inverter module 2, the air flow passing through the air passage 12 circularly flows over the whole heating outer surface, and the other air flow circularly flows over the upper surface through the air passage 51, so that the air volume received by the upper half of the inverter module 2 is larger than the air volume received by the lower half, and in order to reasonably utilize the air volumes in different spaces, the inverter module 2 is divided into the upper element 211 and the lower element 212, and the upper element 211 with large heat productivity corresponds to the front and rear of the air passage 51, so that the upper element 211 can receive the air flow with the two air flows circularly, and the heat productivity of the upper element 211 is large, but the received air volume is also large, thereby ensuring the whole even heat dissipation of the inverter module 2.

In some embodiments, the heat dissipation air channels 14 may also adopt a structure as shown in fig. 1 to 4, referring to fig. 1 to 4, the air inlet ends of the heat dissipation air channels 14 extend downward below the element group 21, and a total air inlet channel 15 is further disposed in the closed cavity 11, and the total air inlet channel 15 is connected to the air inlet ends of the heat dissipation air channels 14 and is located directly below the heat sink.

Although each heat dissipation air duct 14 is independently arranged and distributed in parallel, each heat dissipation air duct 14 is connected with a total air inlet duct 15, and an air inlet of the total air inlet duct 15 is formed in a side plate of the cabinet body 1. Therefore, only one total air inlet is formed in the side plate of the cabinet body 1, so that the number of openings is reduced, and the interference of other external electrical equipment on the air inlet of the heat dissipation air duct 14 is reduced.

The total air inlet duct 15 is located below the radiator and the heat exchanger 3, so that the heat dissipation duct 14 adopts a gas flow mode of lower air inlet and upper air outlet, and impurities such as rainwater dust can be prevented from entering the heat dissipation duct 14 by utilizing the height difference, so that external impurities are prevented from polluting the tooth sheets of the radiator.

In addition, a total air outlet duct 16 is further disposed in the closed cavity 11, and the total air outlet duct 16 is connected to an air outlet end of each heat dissipation duct 14. The total outlet duct 16 is disposed at the top of the cabinet 1 extending in the first direction. An exhaust fan is arranged in the total air outlet duct 16, and is aligned with the air outlets of the heat dissipation air ducts 14, so as to increase the air speed and the air quantity and enable cold air to quickly pass through the heat radiator. The air outlet of the total air outlet channel 16 is arranged on the side plate of the cabinet body 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. An energy storage inverter cabinet, comprising:

the cabinet body (1) is provided with a closed cavity (11), and the length direction of the cabinet body (1) is defined as a first direction, and the width direction is defined as a second direction;

The multiphase inversion modules (2) are arranged in the closed cavity (11) at intervals along the second direction, a flow passage (12) is formed between every two adjacent groups of inversion modules (2), and the flow passage (12) extends along the first direction;

The heat exchanger (3) is arranged on a side plate of the cabinet body (1) perpendicular to the first direction, the heat exchanger (3) is provided with an inner circulation air outlet (31) and an inner circulation air return opening (32), the inner circulation air outlet (31) and the inner circulation air return opening (32) face each flow passage (12), and

And the air guide assembly (4) is arranged in the closed cavity (11) and used for guiding airflow to form circulating flow in each flow passage (12).

2. The energy storage inverter cabinet according to claim 1, wherein a heat dissipation space (13) is formed between the heat exchanger (3) and the multi-phase inverter module (2), the air guide assembly (4) is transversely arranged in each of the through-flow channels (12), and one end of the air guide assembly extends into the heat dissipation space (13) and is transversely arranged between the inner circulation air outlet (31) and the inner circulation air return (32).

3. The energy storage inverter cabinet of claim 2, wherein the air guiding assembly (4) comprises:

A partition plate (41) transversely arranged in the heat dissipation space (13) for partitioning the inner circulation air outlet (31) and the inner circulation air return (32), and

The air deflectors (42) are respectively connected with the partition plates (41), and the air deflectors (42) are transversely arranged in the plurality of the through-flow channels (12) in a one-to-one correspondence mode.

4. The energy storage inverter cabinet of claim 1, the energy storage inverter cabinet is characterized by further comprising:

The wind shielding assembly (5) is arranged on one side, far away from the heat exchanger (3), of the multi-phase inversion module (2), and in the second direction, two ends of the wind shielding assembly (5) respectively extend to the periphery of the multi-phase inversion module (2), and the wind shielding assembly (5) is used for redirecting and refluxing air flow output from the internal circulation air outlet (31) to the internal circulation air return opening (32).

5. The energy storage inverter cabinet according to claim 4, wherein the inverter module (2), the heat exchanger (3) and the wind shielding assembly (5) are all placed along the height direction of the cabinet body (1), and the inner circulation air outlet (31) is located below the inner circulation air return opening (32).

6. The energy storage inverter cabinet according to claim 5, wherein the heat exchanger (3) further has an external circulation air inlet (33) and an external circulation air outlet (34) facing the outside, respectively, the external circulation air inlet (33) being located below the external circulation air outlet (34);

The inner circulation air outlet (31) is provided with a first fan (35), and the outer circulation air outlet (34) is provided with a second fan.

7. The energy storage inverter cabinet according to claim 5, wherein the inverter module (2) comprises:

A primordial qi piece group (21)

A radiator which is arranged to be attached to the element group (21);

The heat radiator is characterized in that a plurality of groups of heat radiation air channels (14) which are in one-to-one correspondence with the heat radiators are further arranged in the closed cavity (11), the heat radiators are positioned in the corresponding heat radiation air channels (14), and the through-flow channels (12) are formed between every two adjacent groups of heat radiation air channels (14).

8. The energy storage inverter cabinet according to claim 7, wherein the upper end of the wind shielding component (5) protrudes upwards from the element group (21), and the protruding part of the wind shielding component (5) is provided with a wind passing hole (51), and the wind passing hole (51) is communicated with each of the current passing channels (12).

9. The energy storage inverter cabinet of claim 8, wherein the element group (21) includes an upper element (211) and a lower element (212), the upper element (211) is located above the air guide assembly (4) and corresponds to the air passing hole (51) in the first direction, and a heating value of the upper element (211) is greater than a heating value of the lower element (212).

10. The energy storage inverter cabinet of claim 7, wherein an air inlet end of the heat dissipation air duct (14) extends downwards to a position below the element group (21), a total air inlet duct (15) is further arranged in the closed cavity (11), and the total air inlet duct (15) is connected to the air inlet end of each heat dissipation air duct (14) and is positioned below the radiator.