Power equipment

Abstract

The utility model discloses power equipment, which comprises a box body, a component arranged in an inner cavity of the box body and a radiator used for radiating the component, the box body is provided with a top plate, a bottom plate opposite to the top plate and a side plate connected with the bottom plate and the top plate, an air inlet communicated with the inner cavity is formed in the bottom plate, an air outlet communicated with the inner cavity is formed in the side plate, and the radiator is located between the air inlet and the air outlet. According to the power equipment, sundries can be prevented from entering the equipment, and the heat dissipation effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic power, and particularly relates to a power device. Background Art

[0002] When a power device is working, the internal components are prone to generate heat. The temperature rise inside the device directly determines the performance of these components. Relying on the natural heat dissipation of the device, the heat dissipation efficiency is relatively low, it is difficult to effectively cool the inside of the device, and the overall heat exchange capacity is greatly limited.

[0003] In order to meet the heat dissipation requirement, currently, an air inlet is provided on the bottom plate of the device, and an air outlet is provided on the top plate opposite to the bottom plate to achieve ventilation. When the power device is used hanging on the wall, since the air outlet faces upward, it is easy for sundries such as dust and leaves to enter the inside of the device. Moreover, such a setting method also limits the direction of the air outlet, and the heat dissipation effect is poor. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a power device, which can avoid sundries from entering the inside of the device and has a good heat dissipation effect.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A power device includes a box body, components arranged in the inner cavity of the box body, and a radiator for dissipating heat from the components. The box body has a top plate, a bottom plate opposite to the top plate, and side plates connecting the bottom plate and the top plate. An air inlet communicating with the inner cavity is provided on the bottom plate, an air outlet communicating with the inner cavity is provided on the side plate, and the radiator is located between the air inlet and the air outlet.

[0007] Preferably, the power device further includes a heat exchanger, the heat exchanger includes a first fixing seat, a second fixing seat, and heat exchange rods connecting the first fixing seat and the second fixing seat. The radiator includes a plurality of heat dissipation fins, and the heat dissipation fins are located on both sides of the heat exchange rods.

[0008] More preferably, the inner cavity includes a first inner cavity and a second inner cavity, and the heat exchanger and the radiator are disposed in the second inner cavity; the first inner cavity and the second inner cavity are separated by a partition, and an opening is provided on the partition, and the opening includes a first opening and a second opening. The first fixing seat and the second fixing seat have a hollow structure, and the number of the heat exchange rods is multiple and each heat exchange rod has a heat exchange channel; the first opening is communicated with the first fixing seat, and the second opening is communicated with the second fixing seat; the heat dissipation fins include a first heat dissipation fin and a second heat dissipation fin, the first heat dissipation fin is fixedly connected to the heat exchange rod, and at least a part of the projection of the heat exchange rod and the second heat dissipation fin in the first direction coincides.

[0009] Preferably, the power device further includes a first fan, the first fan is located in the first inner cavity, the air inlet side of the first fan faces the second fixing seat, and the air outlet side of the first fan faces the component.

[0010] More preferably, the power device further includes a second fan, the second fan is located in the second inner cavity, the air inlet side of the second fan faces the air inlet, and the air outlet side of the second fan faces the radiator; the heat dissipation fins include a first heat dissipation fin and a second heat dissipation fin, the first heat dissipation fin is fixedly connected to the heat exchange rod, the first heat dissipation fin is fixedly connected to the heat exchange rod, and there is a distance between the second heat dissipation fin and the heat exchange rod.

[0011] Preferably, the second heat dissipation fin is fixedly connected to the heat exchange rod.

[0012] Even more preferably, the first fixing seat and / or the second fixing seat have a plurality of interfaces communicated with the opening, and the plurality of interfaces are inserted into the first inner cavity, and the insertion depths are the same or different.

[0013] Preferably, the component includes a first component and a second component, and the bottom of the first component is higher than the top of the second component.

[0014] More preferably, a plurality of first fans are provided in the first inner cavity, and the first fans are arranged in a staggered manner along the first direction; the air inlet side of the first fan is close to the second fixing seat, and the air outlet side of the first fan faces the component.

[0015] Preferably, the radiator includes a substrate, the heat dissipation fins are located on the substrate, and at least a part of the component is close to or abuts against the substrate.

[0016] The present utility model adopts the above solutions and has the following advantages compared with the prior art:

[0017] For the power equipment of the present utility model, air enters from the air inlet on the bottom plate, flows through the radiator, and exits from the air outlet on the side plate to take away the heat on the radiator. Since the air outlet is located on the side plate, the probability of leaves or dust falling into the interior of the box is greatly reduced. Compared with the top plate, there are more side plates, so the air outlet can be flexibly selected, which is beneficial to the air duct planning. On the other hand, air outlets can be arranged on multiple side plates to improve the heat dissipation efficiency. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Schematic diagram of the power equipment according to Embodiment 1 of the present utility model;

[0020] Figure 2 Another schematic diagram of the power equipment according to Embodiment 1 of the present utility model;

[0021] Figure 3 Still another schematic diagram of the power equipment according to Embodiment 1 of the present utility model;

[0022] Figure 4 Schematic diagram of the radiator and heat exchanger according to Embodiment 1 of the present utility model;

[0023] Figure 5 Schematic diagram of the heat exchanger and radiator according to Embodiment 2 of the present utility model;

[0024] Figure 6 Schematic diagram of the power equipment according to Embodiment 3 of the present utility model;

[0025] Figure 7 Still another schematic diagram of the power equipment according to Embodiment 3 of the present utility model;

[0026] Figure 8 Schematic diagram of the heat exchanger according to Embodiment 3 of the present utility model.

[0027] Wherein,

[0028] 100, box body; 101, first inner cavity; 102, second inner cavity; 103, components; 1031, first component; 1032, second component; 104, top plate; 105, side plate; 106, bottom plate; 107, partition; 1071, first opening; 1072, second opening;

[0029] 1. Heat sink; 11. First heat dissipation fin; 12. Second heat dissipation fin; 13. Substrate; 2. Air inlet; 3. Air outlet; 4. Heat exchanger; 41. First fixing seat; 42. Second fixing seat; 43. Heat exchange rod; 44. Interface; 5. First fan; 6. Second fan. Detailed implementation mode

[0030] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art. It should be noted here that the description of these implementation modes is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various implementation modes of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Embodiment 1

[0032] Refer to Figures 1 to 4 As shown, this embodiment provides a power device, which can be a photovoltaic inverter, a photovoltaic energy storage integrated machine, a busbar box, etc. The power device includes a box body 100, components 103 arranged in the inner cavity of the box body 100, and a heat sink 1 for dissipating heat from the components 103.

[0033] Furthermore, the box body 100 has a top plate 104, a bottom plate 106 opposite to the top plate 104, and side plates 105 connecting the bottom plate 106 and the top plate 104. An air inlet 2 communicating with the inner cavity is opened on the bottom plate 106, and an air outlet 3 communicating with the inner cavity is opened on the side plate 105. The heat sink 1 is located between the air inlet 2 and the air outlet 3, and the air is discharged from the air outlet 3 after heat exchange and temperature rise. The air outlet 3 is located on the side plate 105, which avoids sundries such as leaves from entering the interior of the box body 100. Moreover, there are a total of four side plates 105, and multiple air outlets can be set on the four side plates 105 at the same time to improve the heat dissipation efficiency and is also beneficial to the air duct planning. For example, multiple air outlets can be set on two opposite side plates, and the cold air entering from the air inlet will be divided into two streams for heat dissipation respectively, improving the heat dissipation efficiency. Further, the included angle between the plane where the air outlet 3 is located and the plane where the air inlet 2 is located is 90 degrees.

[0034] The inner cavity is divided into a first inner cavity 101 and a second inner cavity 102. Components 103 can be provided in both the first inner cavity 101 and the second inner cavity 102. Specifically, in this embodiment, most of the components are arranged in the first inner cavity 101. Further, the first inner cavity 101 and the second inner cavity 102 are separated by a partition plate 107. The partition plate 107 is provided with a first opening 1071 and a second opening 1072. The power device further includes a heat exchanger 4, and the heat exchanger 4 and a radiator 1 are arranged in the second inner cavity 102. The heat exchanger 4 includes a first fixing seat 41, a second fixing seat 42, and heat exchange rods 43 connecting the first fixing seat 41 and the second fixing seat 42. The first fixing seat 41 and the second fixing seat 42 have a hollow structure, and there is a heat exchange channel in the heat exchange rods 43. The first opening 1071 is communicated with the first fixing seat 41, and the second opening 1072 is communicated with the second fixing seat 42. When the high-temperature gas in the first inner cavity 101 flows into the second inner cavity 101 through the first opening 1071 and the first fixing seat 41 and then enters the heat exchange channel, the air enters the first inner cavity 101 again through the second fixing seat 42 and the second opening 1072 after heat exchange and cooling, realizing heat dissipation inside the first inner cavity 101.

[0035] Furthermore, the radiator 1 includes a substrate 13 and heat dissipation fins arranged on the substrate 13. At least part of the components 103 are close to or in contact with the substrate 13. The components 103 directly transfer heat to the substrate 13, and then the transferred heat further enters the second inner cavity 102 through the substrate 13 and the heat dissipation fins and is taken away, which can effectively reduce the heat of the components 103 in the first inner cavity 101, lower the temperature of the first inner cavity 101, and at the same time enhance the heat dissipation effect of the components 103.

[0036] The heat dissipation fins include a first heat dissipation fin 11 and a second heat dissipation fin 12, which play a role in increasing the heat exchange effect of the heat exchanger. The first heat dissipation fin 11 is fixedly connected to the heat exchange rods 43. There is no fixed connection between the heat exchange rods 43 and the second heat dissipation fin 12 or there is a spacing between the heat exchange rods 43 and the second connecting fin 12. The projections of the heat exchange rods 43 and the second heat dissipation fin 12 in the first direction at least partially overlap. Two adjacent second heat dissipation fins 12 form a heat dissipation air duct extending in the first direction. Here, the "first direction" refers to the width direction of the power device. The height of the second heat dissipation fin 12 can be set differently. More specifically, the height of the second heat dissipation fin 12 can partially or completely exceed the height where the heat exchange rods 43 are located. Here, the "height" refers to the height direction of the power device.

[0037] The power device further includes a first fan 5 and a second fan 6. The first fan 5 is disposed in the first inner cavity 101. The first fan 5 enhances the internal air flow, blows the cold fluid flowing out from the heat exchanger 4 towards each component 103, so that the gas in the first inner cavity 101 and the second inner cavity 102 flows along a preset flow path. The second fan 6 is disposed at the air inlet 2 in the second inner cavity 102, and the air inlet side of the second fan 6 faces the air inlet 2, promoting the cold air outside to blow into the power device.

[0038] Embodiment 2

[0039] Referring to Figure 5 As shown, this embodiment is basically the same as Embodiment 1. The difference is that the second heat dissipation fin 12 and the heat exchange rod 43 are fixedly connected. More specifically, the second heat dissipation fin 12 and the heat exchange rod 43 are fixedly connected by welding, the structure is more compact, the heat transfer between the heat exchanger 4 and the radiator 1 is better, further increasing the heat exchange effect, and at the same time, the structures of the heat exchanger 4 and the radiator 1 are more stable.

[0040] Embodiment 3

[0041] Referring to Figures 6 to 8 As shown, the first fixing seat 41 and / or the second fixing seat 42 have a plurality of interfaces 44 communicating with the opening. The plurality of interfaces 44 are inserted into the first inner cavity 101, and the inserted depths are the same or different, so that the flowing air in the first inner cavity 101 can cover a larger height range, promoting the heat exchange effect in the first inner cavity 101. Specifically in this embodiment, the second fixing seat 42 has a plurality of interfaces 44 communicating with the second opening 1072, and the inserted depths of the plurality of interfaces 44 are different. The first fixing seat 42 has one interface communicating with the first opening 1071. The component 103 includes a first component 1031 and a second component 1032. The bottom of the first component 1031 is higher than the top of the second component 1032. The interfaces 44 of the second fixing seat 42 are arranged in a scattered manner, which is beneficial to dissipate heat from components 103 at different heights and improve the heat dissipation effect. A plurality of first fans 5 are provided in the first inner cavity 101. The first fans 5 are arranged in a staggered manner along the second direction, corresponding to the positions of the components, so that the flowing air in the first inner cavity 101 can cover a larger range and improve the heat dissipation effect. The "second direction" here refers to Figure 7 the second direction shown in

[0042] As shown in this specification and the claims, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The term "and / or" used herein includes any combination of one or more of the related listed items.

[0043] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the descriptions such as "upper", "lower", "left", and "right" used in the present utility model are only relative to the mutual positional relationship of the various components of the present utility model in the drawings.

[0044] The above embodiments are only for illustrating the technical concept and features of the present utility model, and are a preferred embodiment. The purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and it should not be used to limit the protection scope of the present utility model. Any equivalent transformation or modification made according to the principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An electric power device, characterized in that: The invention comprises a box body, components arranged in an inner cavity of the box body and a radiator for dissipating heat for the components. The box body comprises a top plate, a bottom plate opposite to the top plate and a side plate connecting the bottom plate and the top plate. The bottom plate is provided with an air inlet connected to the inner cavity, the side plate is provided with an air outlet connected to the inner cavity, and the radiator is located between the air inlet and the air outlet.

2. The electric power equipment according to claim 1, characterized in that: The electric power equipment further comprises a heat exchanger, which comprises a first fixing seat, a second fixing seat and a heat exchange rod connecting the first fixing seat and the second fixing seat, and the radiator comprises a plurality of heat dissipation fins, which are located on both sides of the heat exchange rod.

3. The electric power equipment according to claim 2, characterized in that: The inner cavity includes a first inner cavity and a second inner cavity, and the heat exchanger and the radiator are arranged in the second inner cavity; the first inner cavity and the second inner cavity are separated by a partition, and an opening is provided on the partition, and the opening includes a first opening and a second opening, the first fixing seat and the second fixing seat have a hollow structure, the number of the heat exchange rods is multiple and each of the heat exchange rods has a heat exchange channel; the first opening is connected to the first fixing seat, and the second opening is connected to the second fixing seat; the heat dissipation fins include a first heat dissipation fin and a second heat dissipation fin, the first heat dissipation fin is fixedly connected to the heat exchange rod, and the projections of the heat exchange rod and the second heat dissipation fin in the first direction at least partially overlap.

4. The electric power equipment according to claim 3, characterized in that: The electric power equipment further includes a first fan, which is located in the first inner cavity, with an air inlet side of the first fan facing the second fixing seat, and an air outlet side of the first fan facing the component.

5. The electric power equipment according to claim 3, characterized in that: The power equipment also includes a second fan, which is located in the second inner cavity, with the air inlet side of the second fan facing the air inlet, and the air outlet side of the second fan facing the radiator; the heat dissipation fins include first heat dissipation fins and second heat dissipation fins, the first heat dissipation fins are fixedly connected to the heat exchange rod, and there is a distance between the second heat dissipation fins and the heat exchange rod.

6. The electric power equipment according to claim 3, characterized in that: The second heat dissipation fins are fixedly connected to the heat exchange rod.

7. The electric power equipment according to claim 3, characterized in that: The first fixing seat and / or the second fixing seat has a plurality of interfaces connected to the opening, and the plurality of interfaces are inserted into the first inner cavity with the same or different insertion depths.

8. The electric power equipment according to claim 7, characterized in that: The components include a first component and a second component, wherein the bottom of the first component is higher than the top of the second component.

9. The electric power equipment according to claim 8, characterized in that: A plurality of first fans are disposed in the first inner cavity, and the first fans are staggered along the first direction; an air inlet side of the first fan faces the second fixing seat, and an air outlet side of the first fan faces the first component or the second component.

10. The electric power equipment according to claim 2, characterized in that: The heat sink comprises a substrate, the heat dissipation fins are located on the substrate, and at least a part of the components is close to or attached to the substrate.

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