CN220776324U

CN220776324U - Electrical equipment and heat radiation structure thereof

Info

Publication number: CN220776324U
Application number: CN202321787809.4U
Authority: CN
Inventors: 潘江陵; 陈林
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-04-12
Anticipated expiration: 2033-07-07

Abstract

The utility model discloses an electrical equipment and a heat radiation structure thereof, the heat radiation structure of the electrical equipment comprises: the radiator is used for contacting with the heating device to radiate heat to the heating device; the heat exchanger is used for cooling the cavity where the heating device is located; the radiator is located in the first air channel, the heat exchanger is located in the second air channel, and the first air channel and the second air channel are relatively independent. Therefore, the heat dissipation of the heat exchanger and the heat radiator are not affected, and the heat dissipation efficiency of the whole heat dissipation structure is improved; the smaller fan can be adopted to independently drive the airflow in the first air duct to flow, and the smaller fan can be adopted to independently drive the airflow in the second air duct to flow, so that the noise of the fan is effectively reduced; and when the temperature of the cavity where the heating device is located is lower, the heat exchanger does not need to work, and the fan which independently drives the airflow in the second air duct to flow can stop running, so that the waste of electric energy is reduced, and the use cost of the whole heat dissipation structure is reduced.

Description

Electrical equipment and heat radiation structure thereof

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to electrical equipment and a heat dissipation structure thereof.

Background

In an electrical apparatus, heat dissipation from a heat generating device is required. At present, the radiator is mainly contacted with the heating device to directly radiate heat to the heating device, and the heat exchanger is used for cooling air in a cavity where the heating device is located to indirectly radiate heat to the heating device.

Among the above-mentioned heat dissipation mode, heat exchanger and radiator set up in electrical apparatus's electrical box, and heat exchanger and radiator set up in same wind channel for heat dissipation of heat exchanger and radiator influences each other, and it is easier to reduce radiating efficiency.

Because the heat exchanger and the radiator are arranged in the same air duct, the radiator and the heat exchanger are required to be simultaneously radiated by a larger fan, so that the noise is larger; moreover, when the temperature of the cavity where the heating device is located is lower, the heat exchanger does not need to work, and the fan still blows air to the heat exchanger for heat dissipation, so that electric energy is wasted, and the use cost is higher.

In addition, the heat exchanger and the radiator are arranged in the electric box body, so that the internal space of the electric box body is occupied, and the volume of the electric box body is larger; foreign matters such as dust outside the electric box body can enter the heat exchange tube of the heat exchanger, the heat exchange tube is difficult to clean, and the heat exchange efficiency of the heat exchanger can be influenced by the foreign matters such as dust.

In summary, how to radiate heat from a heat generating device in an electrical apparatus to reduce and improve the heat radiation efficiency is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model provides an electrical device and a heat dissipation structure thereof to improve heat dissipation efficiency.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a heat dissipation structure of an electrical device, comprising:

the radiator is used for contacting with the heating device to radiate heat of the heating device;

the heat exchanger is used for cooling the cavity where the heating device is located;

the radiator is located in the first air channel, the heat exchanger is located in the second air channel, and the first air channel and the second air channel are relatively independent.

Optionally, the heat dissipation structure of the electrical device further includes:

the first fan is used for driving air of the external environment to flow through the first air duct;

the second fan is used for driving air of the external environment to flow through the second air duct;

wherein, the operation of first fan and the operation of second fan are relatively independent.

and the third fan is used for driving air in the external environment to flow through the first air channel and the second air channel.

Optionally, the direction of the air flow flowing through the radiator in the first air channel is different from the direction of the air flow flowing through the heat exchanger in the second air channel.

Optionally, the direction of the air flow flowing through the radiator in the first air channel is perpendicular to the direction of the air flow flowing through the heat exchanger in the second air channel.

Optionally, the radiator includes a plurality of radiating fins, and radiating gaps are arranged between the radiating fins, and the radiating gaps are located in the first air duct.

Optionally, the air inlet axis of the first air channel and the air outlet axis of the first air channel are perpendicular to the length direction of the heat dissipation gap; and one of the air inlet axis of the first air channel and the air outlet axis of the first air channel is parallel to the depth direction of the heat dissipation gap, and the other is parallel to the width direction of the heat dissipation gap.

Optionally, the heat exchanger includes first heat transfer passageway and the second heat transfer passageway that can carry out the heat exchange, first heat transfer passageway be used for with the cavity intercommunication that the device is located generates heat, the second heat transfer passageway is located in the second wind channel.

Optionally, one of the air inlet axis of the second air duct and the air outlet axis of the second air duct is parallel to the length direction of the second heat exchange channel, and the other is perpendicular to the length direction of the second heat exchange channel.

Optionally, the axis of the air inlet of the second air channel is perpendicular to the length direction of the second heat exchange channel; the axis of the air outlet of the second air channel is parallel to the length direction of the second heat exchange channel;

the length direction of the second heat exchange channel is parallel to the mounting surface where the heat exchanger is located, the second air channel comprises an auxiliary air channel perpendicular to the mounting surface, and the auxiliary air channel is communicated with the second heat exchange channel and an air inlet of the second air channel; or, the length direction of the second heat exchange channel is perpendicular to the mounting surface, the second air channel comprises an auxiliary air channel positioned between the heat exchanger and the mounting surface, and the auxiliary air channel is communicated with the second heat exchange channel and an air outlet of the second air channel.

Optionally, the heat dissipation structure of the electrical device further includes a heat dissipation cover, and the heat radiator and the heat exchanger are both located in the heat dissipation cover;

the heat dissipation cover is provided with a first heat dissipation air inlet, a second heat dissipation air inlet, a first heat dissipation air outlet and a second heat dissipation air outlet;

The first heat dissipation air inlet is communicated with the air inlet of the first air duct;

the second heat dissipation air inlet is communicated with the air inlet of the second air duct, or the second heat dissipation air inlet is communicated with the air inlet of the first air duct and the air inlet of the second air duct;

the first heat dissipation air outlet is communicated with the air outlet of the first air duct, and the second heat dissipation air outlet is communicated with the air outlet of the second air duct.

Optionally, the first heat dissipation air inlet and the second heat dissipation air inlet are both located on the top surface of the heat dissipation cover, and the first heat dissipation air outlet and the second heat dissipation air outlet are both located on the same side surface of the heat dissipation cover; wherein the top surface of the heat dissipation cover is opposite to the opening of the heat dissipation cover.

Optionally, the first heat dissipation air outlet and the second heat dissipation air outlet are both located at one side of the heat exchanger away from the radiator.

Optionally, the heat exchanger and the radiator are disposed on the same mounting surface, and the heat exchanger and the radiator are distributed side by side along a direction parallel to the mounting surface.

Optionally, the heat dissipation structure of the electrical device further includes an electrical box of the electrical device, and the heat radiator and the heat exchanger are both located outside the electrical box, or the heat radiator is located outside the electrical box and the heat exchanger is located inside the electrical box.

Based on the heat dissipation structure of the electrical device, the utility model further provides the electrical device, which comprises the heat dissipation structure of the electrical device.

In the heat radiation structure of the electrical equipment, the radiator is positioned in the first air channel, the heat exchanger is positioned in the second air channel, and the first air channel and the second air channel are relatively independent, so that the heat radiation of the heat exchanger and the heat radiator is not affected, and the heat radiation efficiency of the whole heat radiation structure is improved; meanwhile, as the first air duct and the second air duct are relatively independent, the smaller fan can be adopted to independently drive the airflow in the first air duct to flow, and the smaller fan can be adopted to independently drive the airflow in the second air duct to flow, so that the noise of the fan is effectively reduced; and when the temperature of the cavity where the heating device is located is lower, the heat exchanger does not need to work, and the fan which independently drives the airflow in the second air duct to flow can stop running, so that the waste of electric energy is reduced, and the use cost of the whole heat dissipation structure is reduced.

Drawings

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

Fig. 1 is a schematic layout diagram of a heat exchanger and a radiator in a heat dissipation structure of an electrical device according to a first embodiment of the present utility model;

FIG. 2 is a left side view of the structure shown in FIG. 1;

FIG. 3 is a right side view of the structure shown in FIG. 1;

FIG. 4 is a schematic view of the heat exchanger of FIG. 1;

fig. 5 is a schematic layout diagram of a heat exchanger and a radiator in a heat dissipation structure of an electrical device according to a second embodiment of the present utility model;

FIG. 6 is a left side view of the structure shown in FIG. 5;

FIG. 7 is a right side view of the structure shown in FIG. 5;

FIG. 8 is a schematic view of the heat exchanger of FIG. 5;

fig. 9 is a schematic structural diagram of a heat dissipation structure of an electrical device according to an embodiment of the present utility model;

fig. 10 is a left side view of the structure shown in fig. 9.

In fig. 1-10:

1 is an electric box body, 2 is a mounting surface, 3 is a radiator, 4 is a heat exchanger, 5 is a first fan, 6 is a second fan, 7 is an auxiliary air duct, and 8 is a radiating cover;

41 is a manifold, 42 is a flat tube, 43 is a heat exchange fin, 44 is a second heat exchange channel, and 45 is a first heat exchange channel;

81 is a first heat radiation air inlet, 82 is a second heat radiation air inlet, 83 is a first heat radiation air outlet, and 84 is a second heat radiation air outlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include, for example, "one or more" such forms of expression, unless the context clearly indicates to the contrary. It should also be understood that in embodiments of the present application, "one or more" means one, two, or more than two; "and/or", describes an association relationship of the association object, indicating that three relationships may exist; for example, a and/or B may represent: a alone, a and B together, and B alone, wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

The plurality of the embodiments of the present application refers to greater than or equal to two. It should be noted that, in the description of the embodiments of the present application, the terms "first," "second," and the like are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance, or alternatively, for indicating or implying a sequential order.

"parallel" and "perpendicular" as referred to in this application are "substantially parallel" and "substantially perpendicular" in actual operation. "substantially parallel" may be understood as parallel with some error and similarly "substantially perpendicular" may be understood as perpendicular with some error.

Reference to a "plane" in this application is to a "plane substantially parallel to the horizontal plane" in actual operation.

As shown in fig. 1 and 5, a heat dissipation structure of an electrical device according to an embodiment of the present utility model includes: a radiator 3 and a heat exchanger 4.

The heat sink 3 is used for contacting with the heat generating device to dissipate heat from the heat generating device. The specific structure of the radiator 3 is selected according to the actual situation. In one aspect, the alternative heat sink 3 includes a plurality of heat dissipating fins with heat dissipating gaps between two adjacent heat dissipating fins. In this way, the heat radiating fins and the heat generating device are in direct contact. On the other hand, the alternative radiator 3 includes a heat dissipation substrate and a plurality of heat dissipation fins provided on the heat dissipation substrate, and a heat dissipation gap is provided between two adjacent heat dissipation fins. Thus, the heat dissipation substrate and the heat generating device are in direct contact. Of course, the heat sink 3 may alternatively be of other structures, and is not limited to the above embodiment.

The heat exchanger 4 is used for cooling the cavity where the heating device is located. In order to facilitate cooling of the cavity in which the heat generating device is located, the heat exchanger 4 may be selected to cool air in the cavity in which the heat generating device is located, and indirectly cool the cavity by cooling the air, thereby indirectly radiating heat from the heat generating device. Of course, the heat exchanger 4 may be used to cool the cavity in which the heat generating device is located by other ways to achieve the purpose of indirectly cooling the heat generating device, which is not limited in this embodiment.

The specific structure of the heat exchanger 4 is selected according to the actual situation. In some embodiments, as shown in fig. 4 and 8, the heat exchanger 4 includes a first heat exchanging channel 45 and a second heat exchanging channel 44, where the first heat exchanging channel 45 is used to communicate with a cavity where the heat generating device is located, and the second heat exchanging channel 44 is used to cool the first heat exchanging channel 45. To facilitate the formation of the above-described first heat exchange channel 45 and second heat exchange channel 44, the heat exchanger 4 may be selected to be a parallel flow heat exchanger.

In one aspect, the alternative heat exchanger 4 comprises: at least two flat tubes 42, and two manifolds 41; one manifold 41 is located at one end of the flat tube 42, and the other manifold 41 is located at the other end of the flat tube 42.

In the case of a heat exchanger 4 located outside the electrical cabinet 1, the manifold 41 and the flat tubes 42 may optionally be in communication to form a first heat exchange channel 45, with a second heat exchange channel 44 being formed between two adjacent flat tubes 42. As shown in fig. 4, the direction of the air flow in the manifold 41 is perpendicular to the direction of the air flow in the second heat exchange passage 44; as shown in fig. 8, the direction of the air flow in the manifold 41 is parallel to the direction of the air flow in the second heat exchange passage 44.

In order to improve the heat exchange efficiency, the heat exchanger 4 further comprises heat exchange fins 43, wherein the heat exchange fins 43 are arranged between two adjacent flat tubes 42, i.e. the heat exchange fins 43 are arranged in the second heat exchange channel 44.

In the above embodiment, the inner cavities of the flat tubes 42 may be selected to form the second heat exchange channel 44, and the adjacent two flat tubes 42 have a heat exchange gap therebetween, so that the manifold 41 and the heat exchange gap are communicated to form the first heat exchange channel 45, which is not limited to the structure shown in fig. 4 and 8.

In the case where the heat exchanger 4 is located inside the electric cabinet 1, the manifold 41 and the flat tubes 42 may be selectively communicated to form a second heat exchanging channel 44, and a first heat exchanging channel 45 is formed between two adjacent flat tubes 42. In this case, the length direction of the flat tube 42 may be referred to as the length direction of the second heat exchange passage 44. Of course, the inner cavity of the flat tube 42 may be selected to form the first heat exchange channel 45, a heat exchange gap is formed between two adjacent flat tubes 42, and the manifold 41 is communicated with the heat exchange gap to form the second heat exchange channel 44, in this case, the length direction of the heat exchange gap may be denoted as the length direction of the second heat exchange channel 44, and the length direction of the heat exchange gap is the length direction of the flat tube 42.

Alternatively, the alternative heat exchanger 4 may comprise at least one flat tube, at least two heat exchange fins, and two manifolds; wherein, be provided with a flat pipe between two adjacent heat transfer fins, heat transfer fin and flat pipe distribute side by side, and one manifold is located the one end of flat pipe, and another manifold is located the other end of flat pipe. It will be appreciated that one manifold is located at one end of the heat exchange fins and the other manifold is located at the other end of the heat exchange fins. In the case that the heat exchanger 4 is located outside the electric box body 1, optionally, heat exchange gaps are formed between adjacent heat exchange fins and flat tubes, and optionally, a manifold is communicated with the flat tubes to form a first heat exchange channel, and the heat exchange gaps form a second heat exchange channel; the manifold is communicated with the heat exchange gap to form a first heat exchange channel, and the inner cavity of the flat tube forms a second heat exchange channel. In the case that the heat exchanger 4 is located in the electric box 1, the manifold and the flat tube can be selected to be communicated to form a second heat exchange channel, and the heat exchange gap forms a first heat exchange channel; the manifold is communicated with the heat exchange gap to form a second heat exchange channel, and the inner cavity of the flat tube forms a first heat exchange channel.

In the case of a heat exchanger 4 comprising a manifold 41, the cavity of the manifold 41 forms part of a first heat exchange channel 45, or the cavity of the manifold 41 forms part of a second heat exchange channel 44.

In practical applications, the heat exchanger 4 may be alternatively configured, which is not limited in this embodiment.

In order to improve the heat exchange efficiency of the heat exchanger 4, the heat exchanger 4 may optionally include a first heat exchange channel 45 and a second heat exchange channel 44, where the first heat exchange channel 45 is used for communicating with a cavity where the heat generating device is located, and the second heat exchange channel 44 is used for communicating with an external environment.

It is understood that the external environment refers to an external environment with respect to the electrical apparatus or with respect to the cavity in which the heat generating device is located; the first heat exchange channel 45 and the second heat exchange channel 44 are isolated from each other, i.e. the first heat exchange channel 45 and the second heat exchange channel 44 are not in communication with each other.

The radiator 3 is located in a first air channel, the heat exchanger 4 is located in a second air channel, and the first air channel and the second air channel are relatively independent. It will be appreciated that the positions of the first air duct and the second air duct other than the air inlet and the air outlet are not communicated, and of course, the air inlet of the first air duct and the air inlet of the second air duct are not communicated, and/or the air outlet of the first air duct and the air outlet of the second air duct are not communicated.

In the case that the heat exchanger 4 comprises a first heat exchanging channel 45 and a second heat exchanging channel 44, the heat exchanger 4 is located in the second air duct, i.e. the second heat exchanging channel 44 is located in the second air duct.

In the heat dissipation structure of the electrical equipment provided by the embodiment, the radiator 3 is positioned in the first air channel, the heat exchanger 4 is positioned in the second air channel, and the first air channel and the second air channel are relatively independent, so that the heat dissipation of the heat exchanger 4 and the heat dissipation of the radiator 3 are not affected, and the heat dissipation efficiency of the whole heat dissipation structure is improved; meanwhile, as the first air duct and the second air duct are relatively independent, the smaller fan can be adopted to independently drive the airflow in the first air duct to flow, and the smaller fan can be adopted to independently drive the airflow in the second air duct to flow, so that the noise of the fan is effectively reduced; moreover, when the temperature of the cavity where the heating device is located is lower, the heat exchanger 4 does not need to work, and the fan which independently drives the airflow in the second air duct to flow can stop running, so that the waste of electric energy is reduced, and the use cost of the whole heat dissipation structure is reduced.

In the heat dissipation structure of the electrical device provided in the foregoing embodiment, the first air duct and the second air duct are relatively independent, so that the air volume and the air speed in the first air duct and the second air duct can be independently controlled. For the convenience of heat dissipation, the air inlet and the air outlet of the first air channel can be selected to be communicated with the external environment of the electrical equipment, and the air inlet and the air outlet of the second air channel are both used to be communicated with the external environment of the electrical equipment.

In order to facilitate the air quantity and the air speed in the first air channel and the air quantity and the air speed in the second air channel, the components such as a flow regulating valve or a fan and the like are arranged in the first air channel, and the components such as the flow regulating valve or the fan and the like are arranged in the second air channel. In general, in order to facilitate the air flow through the duct, a fan is required. Based on the above, in order to facilitate the adjustment of the air volume and the air speed of the air duct, the air volume and the air speed of the air duct can be adjusted by a fan.

In some embodiments, as shown in fig. 1-3 and 5-7, the heat dissipation structure of the electrical device further includes a first fan 5 and a second fan 6; the first fan 5 is used for driving air of the external environment to flow through the first air channel, and the first fan 5 can be selected to be opposite to the radiator 3; the second fan 6 is used for driving air of the external environment to flow through the second air duct.

The operation of the first fan 5 and the operation of the second fan 6 are relatively independent. In this way, the first fan 5 can be controlled individually, and the second fan 6 can be controlled individually, i.e. the first fan 5 can be operated independently, and the second fan 6 can also be operated independently. It will be appreciated that the first fan 5 and the second fan 6 may or may not be operated simultaneously.

In the above embodiment, the operation state of the first fan 5 may be adjusted according to the heat exchange requirement of the radiator 3, for example, the rotation speed of the first fan 5 is adjusted; the operation state of the second fan 6 can be adjusted according to the heat exchange requirement of the cavity where the heating device is located, for example, the rotation speed of the second fan 6 is adjusted. When the cavity where the heating device is located does not need to radiate heat, the heat exchanger 4 does not need to work, and the second air channel does not need to flow through air of the external environment, under the condition, the operation of the second fan 6 can be stopped, namely the second fan 6 is stopped, the waste of electric energy is avoided, and the use cost of the radiating structure of the electrical equipment is reduced. In addition, the first fan 5 is used for driving air in the external environment to flow through the first air channel, the second fan 6 is used for driving air in the external environment to flow through the second air channel, and compared with the prior art, the size of the first fan 5 and the size of the second fan 6 are reduced, and noise of the first fan 5 and the second fan 6 is also reduced when the fan is used for simultaneously radiating heat for the radiator and the heat exchanger.

During operation of the electrical apparatus, the radiator 3 is usually required to operate at all times, while the heat exchanger 4 may operate in stages. Based on this, a third fan (not shown) may be used instead of the second fan 6 or the third fan and the second fan 6 may be provided at the same time. The third fan is used for driving the air outside to flow through the first air channel and the second air channel.

On the one hand, the operation of the first fan 5 and the operation of the third fan can be selected to be relatively independent, namely, the first fan 5 can be independently operated, and the third fan can also be independently operated. It will be appreciated that the first fan 5 and the third fan may or may not be operated simultaneously. Alternatively, operation of the first fan 5 may be selected to be associated with operation of the third fan, e.g., operation of the first fan 5 and the third fan simultaneously and operation of the third fan simultaneously cease.

In the case where the third fan is provided, the size of the first fan 5 is also reduced, thereby reducing the noise of the first fan 5.

In the case where the second fan 6 and the third fan are provided at the same time, the operations of the third fan and the second fan 6 may be relatively independent or may be related, which is not limited in this embodiment.

The first fan 5 may be located at the inlet or outlet of the first air duct, the second fan 6 may be located at the inlet or outlet of the second air duct, and the third fan may be located at the inlet or outlet of the air ducts (the first air duct and the second air duct).

The number and types of the first fan 5, the second fan 6 and the third fan are selected according to actual conditions, and the present embodiment is not limited thereto.

In the heat dissipation structure of the electrical equipment, the air flow directions in the first air duct and the second air duct can be the same or different.

In some embodiments, the direction of airflow in the first air duct is different from the direction of airflow in the second air duct.

In the above embodiment, on the one hand, in order to facilitate the air flow through the radiator 3 and the heat exchanger 4, the direction of the air flow through the radiator 3 in the first air duct and the direction of the air flow through the heat exchanger 4 in the second air duct may be selected to be different. And in the other direction, the air inlet direction of the first air channel and the air inlet direction of the second air channel can be selected to be different, and/or the air outlet direction of the first air channel and the air outlet direction of the second air channel are different.

Under the condition that the air flow direction flowing through the radiator 3 in the first air channel and the air flow direction flowing through the heat exchanger 4 in the second air channel are different, in order to facilitate setting of the air inlet and the air outlet of the first air channel and the air inlet and the air outlet of the second air channel, the air inlet direction and the air outlet direction of the first air channel and the second air channel can be selected to be the same.

In the case that the direction of the air flow flowing through the radiator 3 in the first air duct and the direction of the air flow flowing through the heat exchanger 4 in the second air duct are different, the direction of the air flow flowing through the radiator 3 in the first air duct may be selected to be perpendicular to the direction of the air flow flowing through the heat exchanger 4 in the second air duct. Of course, the airflow direction in the first air duct and the airflow direction in the second air duct may also be set according to the specific structures of the radiator 3 and the heat exchanger 4, which is not limited in this embodiment.

In some embodiments, the radiator 3 includes a plurality of radiating fins with radiating gaps therebetween, and the radiating gaps are located in the first air duct. In this case, the air inlet axis of the first air duct and the air outlet axis of the first air duct may be selected to be perpendicular to the length direction of the heat dissipation gap; and one of the air inlet axis of the first air channel and the air outlet axis of the first air channel is parallel to the depth direction of the heat dissipation gap, and the other is parallel to the width direction of the heat dissipation gap.

The width direction of the heat dissipation gap is the distribution direction of any two heat dissipation fins, and is also the thickness direction of the heat dissipation fins. The depth direction of the heat dissipation gap, the width direction of the heat dissipation gap and the length direction of the heat dissipation gap are perpendicular to each other.

In the foregoing embodiment, in order to facilitate air intake, the air inlet axis of the first air duct may be selected to be parallel to the depth direction of the heat dissipation gap, and the air outlet axis of the first air duct may be selected to be parallel to the width direction of the heat dissipation gap.

In other embodiments, the air inlet and the air outlet of the first air duct may be alternatively arranged, which is not limited to the above embodiments.

In some embodiments, the heat exchanger 4 includes a first heat exchange channel 45 and a second heat exchange channel 44, where the first heat exchange channel 45 is used to communicate with the cavity where the heat generating device is located, and the second heat exchange channel 44 is located in the second air duct. In this case, one of the air inlet axis of the second air duct and the air outlet axis of the second air duct may be selected to be parallel to the length direction of the second heat exchange passage 44, and the other may be perpendicular to the length direction of the second heat exchange passage 44. This arrangement is particularly suitable in the case where the heat exchanger 4 is provided outside the electrical cabinet 1.

It should be noted that, the length direction of the second heat exchange channel 44 is a direction from the inlet of the second heat exchange channel 44 to the outlet of the second heat exchange channel 44.

In the above embodiment, in order to facilitate air inlet and outlet, the air inlet axis of the second air duct may be selected to be perpendicular to the length direction of the second heat exchange channel 44, and the air outlet axis of the second air duct may be parallel to the length direction of the second heat exchange channel 44.

As shown in fig. 1 and 2, the length direction of the second heat exchange channel 44 is parallel to the mounting surface 2 where the heat exchanger 4 is located, and the second air channel includes an auxiliary air channel 7 perpendicular to the mounting surface 2, and the auxiliary air channel 7 communicates with the second heat exchange channel 44 and an air inlet of the second air channel.

If the positions of the air inlet and the air outlet are exchanged in the above structure, the auxiliary air duct 7 is communicated with the second heat exchange channel 44 and the air outlet of the second air duct.

As shown in fig. 5 and 6, the length direction of the second heat exchange channel 44 is perpendicular to the mounting surface 2, and the second air channel includes an auxiliary air channel 7 located between the heat exchanger 4 and the mounting surface 2, and the auxiliary air channel 7 communicates with the second heat exchange channel 44 and an air outlet of the second air channel.

If the positions of the air inlet and the air outlet are exchanged in the above structure, the auxiliary air duct 7 is communicated with the second heat exchange channel 44 and the air inlet of the second air duct.

In order to facilitate the formation of the first air duct and the second air duct, as shown in fig. 9 and 10, the heat dissipation structure of the above-mentioned electrical apparatus further includes a heat dissipation cover 8, and the heat sink 3 and the heat exchanger 4 are both located in the heat dissipation cover 8.

The heat dissipation cover 8 has a first heat dissipation air inlet 81, a second heat dissipation air inlet 82, a first heat dissipation air outlet 83, and a second heat dissipation air outlet 84. It will be appreciated that the cavity of the heat sink 8 and the cavity in which the heat generating device is located may or may not be in communication.

The specific structure of the heat dissipation cover 8 is selected according to the actual situation. Optionally, the heat dissipation cover 8 includes a fan cover, and the first heat dissipation air inlet 81, the second heat dissipation air inlet 82, the first heat dissipation air outlet 83, and the second heat dissipation air outlet 84 are all disposed in the fan cover.

The first heat dissipation air inlet 81 is communicated with the air inlet of the first air duct, and then the first heat dissipation air inlet 81 can be opposite to the radiator 3.

The second heat dissipation air inlet 82 is communicated with the air inlet of the second air duct, and the second heat dissipation air inlet 82 can be opposite to the heat exchanger 4; or the second heat dissipation air inlet 82 is communicated with the air inlet of the first air duct and the air inlet of the second air duct, and then the second heat dissipation air inlet 82 can be opposite to the heat exchanger 4 and the heat radiator 3.

The first heat dissipation air outlet 83 is communicated with the air outlet of the first air channel, and the second heat dissipation air outlet 84 is communicated with the air outlet of the second air channel.

In practical situations, the first air duct and the second air duct may also be selected to share the air outlet, that is, the first heat dissipation air outlet 83 and the second heat dissipation air outlet 84 are the same air outlet.

In the above embodiment, the axis of the first heat dissipation air inlet 81 and the air inlet axis of the first air duct are collinear, the axis of the second heat dissipation air inlet 82 and the air inlet axis of the second air duct are collinear, the axis of the first heat dissipation air outlet 83 and the air outlet axis of the first air duct are collinear, and the axis of the second heat dissipation air outlet 84 and the air outlet axis of the second air duct are collinear.

In the above embodiment, the first fan 5 may be disposed at the first heat dissipation air inlet 81, and the second fan 6 or the third fan may be disposed at the second heat dissipation air inlet 82.

The specific positions of the first heat dissipation air inlet 81, the second heat dissipation air inlet 82, the first heat dissipation air outlet 83 and the second heat dissipation air outlet 84 on the heat dissipation cover 8 are selected according to practical situations.

In some embodiments, as shown in fig. 9 and 10, the first heat dissipation air inlet 81 and the second heat dissipation air inlet 82 are located on the top surface of the heat dissipation cover 8, and the first heat dissipation air outlet 83 and the second heat dissipation air outlet 84 are located on the same side surface of the heat dissipation cover 8; wherein the top surface of the heat sink cap 8 is opposite to the opening of the heat sink cap 8.

To facilitate the air outlet, the first heat dissipation air outlet 83 and the second heat dissipation air outlet 84 may be selected to be located on a side of the heat exchanger 4 away from the heat sink 3.

In the above embodiment, the first heat dissipation air outlet 83 and the second heat dissipation air outlet 84 may be alternatively located on different sides of the heat dissipation cover 8, which is not limited to the above embodiment.

In some embodiments, the heat dissipation structure of an electrical device further includes an electrical box 1 of the electrical device.

In one aspect, the optional radiator 3 and the heat exchanger 4 are both located outside the electrical cabinet 1. In this case, the heat dissipation cover 8 is provided outside the electric box 1, and the heat dissipation cover 8 and the electric box 1 are hermetically connected. Thus, the occupation of the radiator 3 and the heat exchanger 4 to the internal space of the electric box body 1 is avoided, the volume of the electric box body 1 can be reduced, and the cost of the electric box body 1 can be reduced; moreover, since the heat exchanger 4 is provided outside the electric cabinet 1, the heat exchanger 4 is easily detached, thereby facilitating cleaning of the heat exchanger 4, particularly, the first heat exchanging channel 45 and the second heat exchanging channel 44 of the heat exchanger 4.

Alternatively, both the radiator 3 and the heat exchanger 4 are located inside the electrical cabinet 1. In this case, the heat dissipation cover 8 is provided inside the electric box 1, and the heat dissipation cover 8 and the electric box 1 are hermetically connected.

Alternatively, the heat sink 3 is located outside the electrical cabinet 1 and the heat exchanger 4 is located inside the electrical cabinet 1. In this case, the heat radiation cover 8 is provided outside the electric box 1, the heat radiation cover 8 and the electric box 1 are hermetically connected, the heat exchanger 4 is not provided in the heat radiation cover 8, and the heat radiator 3 is provided in the heat radiation cover 8.

In the heat radiation structure of the above-described electrical apparatus, the mounting positions of the radiator 3 and the heat exchanger 4 are selected according to actual conditions.

In some embodiments, the heat sink 3 and the heat exchanger 4 are disposed on the same mounting surface 2. The space required for the electrical device in the direction perpendicular to the mounting surface 2 cannot be excessively large, and the space required for the electrical device in the direction perpendicular to the mounting surface 2 is required to be as small as possible in order to satisfy the demand for reduction in volume of the electrical device. In the electrical equipment, the mounting surface 2 is large, and has an unused extra space. Based on this, in order to reduce the volume of the electrical apparatus, the heat sink 3 and the heat exchanger 4 are distributed side by side in a direction parallel to the mounting surface 2.

In the case where the heat exchanger 4 includes the manifold 41, since the heat exchanger 4 is disposed on the mounting surface 2, the manifold 41 is disposed on the mounting surface 2.

Since the radiator 3 and the heat exchanger 4 are provided on the same mounting surface 2, the surface radiator 3 and the heat exchanger 4 are both provided inside or outside the electric box 1.

The mounting surface 2 may be planar or approximately planar. The specific direction in which the heat radiator 3 and the heat exchanger 4 are arranged side by side is selected according to the actual situation. For example, the installation surface 2 is a horizontal surface, that is, the installation surface 2 is perpendicular to the height direction of the electrical equipment, the radiator 3 and the heat exchanger 4 can be distributed side by side along the length direction or the width direction of the electrical equipment, or the side by side distribution direction of the radiator 3 and the heat exchanger 4 and the length direction of the electrical equipment are inclined relatively; or the installation surface 2 is a vertical surface, namely the installation surface 2 is parallel to the height direction of the electrical equipment, and the installation surface 2 is perpendicular to the length direction of the electrical equipment, and the radiator 3 and the heat exchanger 4 can be distributed side by side along the height direction or the width direction of the electrical equipment; alternatively, the installation surface 2 is a vertical surface, that is, the installation surface 2 is parallel to the height direction of the electrical equipment, and the installation surface 2 is perpendicular to the width direction of the electrical equipment, and the radiator 3 and the heat exchanger 4 can be distributed side by side along the height direction or the length direction of the electrical equipment.

The specific direction in which the radiator 3 and the heat exchanger 4 are arranged side by side may be other, and is not limited to the above-listed direction.

In the heat radiation structure of the electrical apparatus provided in the above embodiment, the heat radiator 3 and the heat exchanger 4 are disposed on the same mounting surface 2, and the heat radiator 3 and the heat exchanger 4 are distributed side by side in the direction parallel to the mounting surface 2, so that compared with the partial structure of the heat exchanger of the prior art and the heat radiator being disposed in a stacked manner in the direction perpendicular to the mounting surface, the space required in the direction perpendicular to the mounting surface 2 is reduced, thereby reducing the volume of the electrical apparatus; meanwhile, the radiator 3 and the heat exchanger 4 are distributed side by side along the direction parallel to the mounting surface 2, so that the heat exchanger 4 is prevented from influencing the heat dissipation efficiency of the radiator 3, and the heat dissipation efficiency of the radiator 3 is improved.

The heat dissipation structure of the electrical device is specifically described below according to two embodiments.

Example 1

As shown in fig. 1 to 3, a heat dissipation structure of an electrical device according to a first embodiment includes: the heat exchanger comprises an electric box body 1, a radiator 3, a heat exchanger 4, a first fan 5, a second fan 6 and an auxiliary air duct 7.

The top surface of the electric box body 1 is a mounting surface 2, the mounting surface 2 is perpendicular to the height direction of the electric box body 1, the radiator 3 and the heat exchanger 4 are sequentially distributed on the mounting surface 2 along the length direction of the electric box body 1, and the radiator 3 is positioned on the left side of the heat exchanger 4. It will be appreciated that the radiator 3 and the heat exchanger 4 are both located outside the electrical cabinet 1.

The radiator 3 includes a plurality of radiating fins with radiating gaps between two adjacent radiating fins. Any two radiating fins are distributed in sequence along the length direction of the electric box body 1, and the length direction of a radiating gap is parallel to the width direction of the electric box body 1. It will be appreciated that the length direction of the heat dissipation gap is parallel to the mounting surface 2.

As shown in fig. 4, the heat exchanger 4 includes: at least two flat tubes 42, and two manifolds 41; one manifold 41 is located at one end of the flat tube 42, and the other manifold 41 is located at the other end of the flat tube 42. The manifold 41 is communicated with the flat tubes 42 to form a first heat exchange channel 45, a second heat exchange channel 44 is formed between two adjacent flat tubes 42, heat exchange fins 43 are arranged in the second heat exchange channel 44, the air flow direction in the manifold 41 is vertical to the air flow direction in the second heat exchange channel 44, and the length direction of the second heat exchange channel 44 is vertical to the length direction of the heat exchange gap. It will be appreciated that the length direction of the second heat exchange channel 44 is perpendicular to the heat radiating fins of the heat sink 3.

The manifold 41 is provided on the mounting surface 2, and the direction of air flow in the manifold 41 is perpendicular to the mounting surface 2.

As shown in fig. 1-3, the length direction of the second heat exchange channel 44 is parallel to the mounting surface 2. An auxiliary air duct 7 is arranged between the heat exchanger 4 and the radiator 3, the auxiliary air duct 7 is arranged between the second heat exchange channel 44 and the radiating fins, and the auxiliary air duct 7 is communicated with the second heat exchange channel 44.

The second heat exchanging channel 44 of the heat exchanger 4 is located in the second air channel, the radiator 3 is located in the first air channel, and the first air channel and the second air channel are relatively independent.

The air inlets of the first air channel and the second air channel are positioned at the tops of the heat exchanger 4 and the radiator 3, namely, the air inlets of the first air channel and the second air channel are positioned at one side of the heat exchanger 4 and the radiator 3 far away from the mounting surface 2; the air outlets of the first air channel and the second air channel are both positioned on one side, far away from the radiator 3, of the heat exchanger 4, the first fan 5 is arranged at the air inlet of the first air channel, and the second fan 6 is arranged at the air inlet of the second air channel.

The second air duct further includes an auxiliary air duct 7, and the auxiliary air duct 7 is located between the radiator 3 and the heat exchanger 4 so as to communicate the first heat dissipation air inlet 81 and the second heat exchange channel 44.

As shown in fig. 9 and 10, the heat dissipation structure of the electrical device provided in the first embodiment further includes a heat dissipation cover 8, the heat dissipation cover 8 is covered on the heat radiator 3 and the heat exchanger 4, a first heat dissipation inlet and outlet 81 on the heat dissipation cover 8 is communicated with an air inlet of the first air duct, a second heat dissipation air inlet 82 on the heat dissipation cover 8 is communicated with an air inlet of the second air duct, a first heat dissipation air outlet 83 on the heat dissipation cover 8 is communicated with an air outlet of the first air duct, and a second heat dissipation air outlet 84 on the heat dissipation cover 8 is communicated with an air outlet of the second air duct.

It should be noted that, the axes of the first heat dissipation inlet and outlet 81 and the second heat dissipation air inlet 82 are perpendicular to the mounting surface 2, and the axes of the first heat dissipation air outlet 83 and the second heat dissipation air outlet 84 are parallel to the mounting surface 2.

In fig. 1, arrow lines indicate the flow direction of the air in the second heat exchange passage 44; in fig. 2 and 3, arrow lines indicate the flow direction of the air into the first and second heat dissipation air inlets 81 and 82; in fig. 4, the arrow lines in the manifold 41 indicate the direction of flow of air into and out of the manifold 41, and the arrow lines on the second heat exchange channels 44 indicate the direction of flow of air in the second heat exchange channels 44.

The first fan 5 is opposite to the radiator 3, so that the first fan 5 is used for driving air of the external environment to flow through a first air channel where the radiator 3 is located. In the operation process of the first fan 5, air in the external environment enters the first air channel through the first heat dissipation air inlet 81, then enters the heat dissipation gap of the radiator 3, then flows from the heat dissipation gap to the first heat dissipation air outlet 83, and finally is discharged through the first heat dissipation air outlet 83. In this way, heat dissipation to the heat sink 3 is achieved.

The second fan 6 is opposite to the auxiliary air duct 7, so that the second fan 6 is used for driving air of the external environment to flow through the second air duct. In the operation process of the second fan 6, air in the external environment enters through the second heat dissipation air inlet 82, fins of the radiator 3 form a barrier, the air in the external environment turns into the second heat exchange channel 44 of the heat exchanger 4 through the auxiliary channel 7 by wind pressure, flows to the second heat dissipation air outlet 84 through the second heat exchange channel 44, and finally is discharged through the second heat dissipation air outlet 84. In this way, the cooling of the first heat exchange channel 45 and the air therein is realized, thereby realizing the heat dissipation of the cavity in which the heating device is located. When the temperature of the cavity where the heating device is located is low, the heat exchanger 4 does not need to work, and the second fan 6 is controlled to stop.

In practical situations, whether the second fan 6 operates or not and the rotating speed of the second fan 6 can be adjusted according to the temperature of the cavity where the heating device is located.

In the working process of the electrical equipment, only the first fan 5 can be selected to run, namely only the radiator 3 is blown, namely only the radiator 3 is cooled; it is also possible to choose the first fan 5 and the second fan 6 to operate simultaneously while blowing air to the radiator 3 and the second heat exchanging channel 44, while cooling the radiator 3 and the first heat exchanging channel 45.

In fig. 1, the number of first fans 5 is four, and the number of second fans 6 is one. Of course, the number of the first fans 5 and the second fans 6 may be selected to be other, which is not limited in this embodiment.

In the first embodiment, the second fan 6 may be replaced by a third fan, or the first embodiment further includes a third fan. For a specific description of the third fan, reference may be made to the foregoing, and a detailed description thereof will be omitted herein.

In practical situations, the heat exchanger 4 may be optionally located on the right side of the radiator 3, and the first heat dissipation air outlet 83 and the second heat dissipation air outlet 84 are correspondingly located on the right side of the heat exchanger 4, and other structures are correspondingly adjusted.

In practical situations, any two heat dissipation fins may be selected to be sequentially distributed along the width direction of the electrical box 1, the length direction of the heat dissipation gap is parallel to the length direction of the electrical box 1, and the length direction of the second heat exchange channel 44 is parallel to the length direction of the heat dissipation gap. In this case, the first heat radiation air outlets 83 may be provided at both sides of the heat radiation gap.

Example two

As shown in fig. 5 to 7, 9 and 10, the second embodiment differs from the first embodiment mainly in the structure of the heat exchanger 4.

In the second embodiment, the length direction of the second heat exchanging channel 44 is perpendicular to the mounting surface 2, and the length direction of the second heat exchanging channel 44 is perpendicular to the length direction of the heat dissipating gap. As shown in fig. 8, the direction of air flow in the second heat exchange passage 44 is parallel to the direction of air flow in the manifold 41.

The position of the auxiliary air duct 7 in the second embodiment is also different from that in the first embodiment based on the length direction of the second heat exchanging channel 44 being perpendicular to the mounting surface 2.

In the second embodiment, the second air duct further includes an auxiliary air duct 7 located between the heat exchanger 4 and the mounting surface 2, and the auxiliary air duct 7 communicates with the second heat exchange channel 44 and the second heat dissipation air outlet 84. Correspondingly, the position of the second fan 6 in the second embodiment is different from that in the first embodiment. In the second embodiment, the second fan 6 is opposite to the second heat exchange channel 44, so that the second fan 6 is used for driving the air of the external environment to flow through the second air duct.

In fig. 5, arrow lines indicate the flow direction of air in the auxiliary air duct 7; in fig. 6 and 7, arrow lines indicate the flow direction of the air into the first and second heat dissipation air inlets 81 and 82 and the flow direction of the air in the second heat exchange passage 44; in fig. 4, the arrow lines in the manifold 41 indicate the direction of flow of air into and out of the manifold 41, and the arrow lines on the second heat exchange channels 44 indicate the direction of flow of air in the second heat exchange channels 44.

In the operation process of the first fan 5, air in the external environment enters the first air channel through the first heat dissipation air inlet 81, so that the air enters the heat dissipation gap of the heat radiator 3, then flows from the heat dissipation gap to the first heat dissipation air outlet 83, and finally is discharged through the first heat dissipation air outlet 83. In this way, heat dissipation to the heat sink 3 is achieved.

During the operation of the second fan 6, air in the external environment enters the second air duct through the second heat dissipation air inlet 82, so as to enter the second heat exchange channel 44, the fins of the radiator 3 form a barrier, and the air in the external environment enters the auxiliary channel 7 from the second heat exchange channel 44 and is then discharged through the second heat dissipation air outlet 84. In this way, the cooling of the first heat exchange channel 45 and the air therein is realized, thereby realizing the heat dissipation of the cavity in which the heating device is located. When the temperature of the cavity where the heating device is located is low, the heat exchanger 4 does not need to work, and the second fan 6 is controlled to stop.

In fig. 5, the number of first fans 5 is four, and the number of second fans 6 is one. Of course, the number of the first fans 5 and the second fans 6 may be selected to be other, which is not limited in this embodiment.

In the second embodiment, the second fan 6 may be replaced by a third fan, or the first embodiment further includes a third fan. For a specific description of the third fan, reference may be made to the foregoing, and a detailed description thereof will be omitted herein.

In practical situations, any two heat dissipation fins may be selected to be sequentially distributed along the width direction of the electrical box 1, the length direction of the heat dissipation gap is parallel to the length direction of the electrical box 1, and the length direction of the second heat exchange channel 44 is perpendicular to the length direction of the heat dissipation gap.

In practical situations, structures other than those of the first embodiment and the second embodiment may be adopted to realize that the radiator 3 and the second heat exchange channel 44 can be located in different air channels, which is not limited in this embodiment.

Based on the heat dissipation structure of the electrical device provided in the foregoing embodiment, the present embodiment further provides an electrical device including the heat dissipation structure of the electrical device described in the foregoing embodiment.

As for the specific type of the above-described electric device, the electric device is selected according to the actual situation, for example, an inverter, a converter, or the like, which is not limited in this embodiment.

Because the heat dissipation structure of the electrical device provided in the foregoing embodiment has the foregoing technical effects, the electrical device includes the heat dissipation structure of the electrical device, and the electrical device also has corresponding technical effects, which are not described herein again.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat dissipation structure of an electrical device, comprising:

2. The heat dissipation structure of an electrical device according to claim 1, further comprising:

3. The heat dissipation structure of an electrical device according to claim 1, further comprising:

4. The heat radiation structure of the electric device according to claim 1, wherein a direction of an air flow flowing through the radiator in the first air duct and a direction of an air flow flowing through the heat exchanger in the second air duct are different.

5. The heat dissipating structure of an electrical device of claim 4, wherein the direction of air flow through said heat sink in said first air path is perpendicular to the direction of air flow through said heat exchanger in said second air path.

6. The heat dissipating structure of an electrical device of claim 1, wherein the heat sink comprises a plurality of heat dissipating fins with heat dissipating gaps therebetween, the heat dissipating gaps being located in the first air channel.

7. The heat dissipation structure of an electrical device according to claim 6, wherein an air inlet axis of the first air duct and an air outlet axis of the first air duct are both perpendicular to a length direction of the heat dissipation gap; and one of the air inlet axis of the first air channel and the air outlet axis of the first air channel is parallel to the depth direction of the heat dissipation gap, and the other is parallel to the width direction of the heat dissipation gap.

8. The heat dissipating structure of an electrical device of claim 1, wherein the heat exchanger comprises a first heat exchanging channel and a second heat exchanging channel capable of exchanging heat, the first heat exchanging channel being configured to communicate with a cavity in which the heat generating element is located, and the second heat exchanging channel being located in the second air duct.

9. The heat radiation structure of the electrical device according to claim 8, wherein one of the air inlet axis of the second air duct and the air outlet axis of the second air duct is parallel to the length direction of the second heat exchange channel, and the other is perpendicular to the length direction of the second heat exchange channel.

10. The heat dissipating structure of an electrical device of claim 9,

the axis of the air inlet of the second air channel is perpendicular to the length direction of the second heat exchange channel; the axis of the air outlet of the second air channel is parallel to the length direction of the second heat exchange channel;

11. The heat radiation structure of an electric device according to any one of claims 1 to 10, further comprising a heat radiation cover, wherein the heat radiator and the heat exchanger are both located inside the heat radiation cover;

12. The heat dissipating structure of electrical equipment of claim 11, wherein the first heat dissipating air inlet and the second heat dissipating air inlet are both located on a top surface of the heat dissipating cover, and the first heat dissipating air outlet and the second heat dissipating air outlet are both located on a same side surface of the heat dissipating cover; wherein the top surface of the heat dissipation cover is opposite to the opening of the heat dissipation cover.

13. The heat dissipating structure of an electrical device of claim 12, wherein the first heat dissipating air outlet and the second heat dissipating air outlet are both located on a side of the heat exchanger remote from the heat sink.

14. The heat radiation structure of an electric device according to claim 1, wherein the heat exchanger and the heat radiator are provided on the same mounting surface, and the heat radiator and the heat exchanger are arranged side by side in a direction parallel to the mounting surface.

15. The heat dissipating structure of an electrical device of claim 1,

the heat dissipation structure of the electrical equipment further comprises an electrical box body of the electrical equipment, wherein the radiator and the heat exchanger are both positioned outside the electrical box body, or the radiator is positioned outside the electrical box body and the heat exchanger is positioned inside the electrical box body.

16. An electrical device comprising the heat dissipation structure of an electrical device as recited in any one of claims 1-15.