Aluminum alloy heat dissipation structure for photovoltaic power generation inverter

Abstract

The utility model discloses a kind of aluminium alloy heat dissipation structures for photovoltaic power generation inverter, this structure aims at solving the problem that the heat dissipation performance of existing photovoltaic inverter shell is poor, internal heat is difficult to transfer to outside, reduces inverter conversion efficiency. The structure includes shell, shell is U-shaped structure and left and right sides are equipped with aluminium alloy radiator, the back of shell is detachably installed with backplate, aluminium alloy radiator includes aluminium alloy main body, and aluminium alloy main body is equipped with multiple heat dissipation holes. The utility model is installed aluminium alloy radiator in the left and right sides of shell, and multiple heat dissipation holes and heat dissipation fins are set on the aluminium alloy main body of aluminium alloy radiator, can increase the contact area with air, when air flows through the gap between heat dissipation hole and heat dissipation fin, thereby faster make internal components to outside heat dissipation, increase the heat dissipation area of inverter shell, reduce the energy loss of photovoltaic power generation inverter.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic inverter technology, specifically relating to an aluminum alloy heat dissipation structure for photovoltaic power generation inverters. Background Technology

[0002] In recent years, the photovoltaic (PV) power generation industry has developed rapidly, with its installed capacity continuously increasing. As a sustainable energy solution, PV power generation occupies an increasingly important position in the energy sector. In a PV power generation system, the inverter is one of the key components, its function being to convert the direct current (DC) generated by the solar panels into alternating current (AC) for use by the power grid or end users. During operation, the inverter generates a significant amount of heat due to the switching actions of its power electronic devices and energy conversion, thus requiring heat dissipation measures.

[0003] Existing photovoltaic inverters have a planar casing with poor heat dissipation performance. As the inverter continues to operate, the internal heat is difficult to transfer to the outside, and its temperature will increase. Especially under continuous sunlight, the temperature will gradually rise. If the ventilation measures are not good, it will increase energy loss and reduce the conversion efficiency of the inverter. Therefore, an aluminum alloy heat dissipation structure for photovoltaic power generation inverters is proposed. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an aluminum alloy heat dissipation structure for photovoltaic power generation inverters. This structure aims to solve the problem that the existing photovoltaic inverter shell has poor heat dissipation performance due to its planar structure, making it difficult to transfer internal heat to the outside and reducing the inverter conversion efficiency.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides an aluminum alloy heat dissipation structure for a photovoltaic power generation inverter. The structure includes an outer shell, which is U-shaped and has aluminum alloy heat sinks installed on both the left and right sides. A back plate is detachably installed on the back of the outer shell. The aluminum alloy heat sink includes an aluminum alloy body with multiple heat dissipation holes. The heat dissipation holes penetrate the front and rear sides of the aluminum alloy body and have multiple first heat dissipation protrusions fixedly connected to the inner wall. Multiple heat dissipation fins are fixedly connected to the side of the aluminum alloy body away from the outer shell. Multiple second heat dissipation protrusions are fixedly connected to the upper and lower sides of the heat dissipation fins. Heat dissipation holes are provided on both the left and right sides of the upper surface of the outer shell.

[0008] Preferably, the outer casing includes a bottom plate, a mounting plate, and a top plate connected in sequence, and the bottom plate, mounting plate, and top plate are integrally bent.

[0009] Furthermore, slots are provided on both the upper and lower sides of the aluminum alloy body, and extensions are bent on the back of the bottom plate and the top plate. The back plate extends to the aluminum alloy body and is provided with first screws on both the upper and lower sides. The first screws are threadedly connected to the extensions. Bending portions are bent on both the left and right sides of the bottom plate and the top plate, and the bending portions are located inside the slots.

[0010] Furthermore, the aluminum alloy body has front mounting holes and rear mounting holes on both the front and rear sides. The mounting plate has second screws on both the left and right sides, which are threaded to the front mounting holes. The back plate has third screws on both the left and right sides, which are threaded to the rear mounting holes.

[0011] Furthermore, both the first and second heat dissipation protrusions are arc-shaped structures, with multiple first heat dissipation protrusions evenly distributed along the inner wall of the heat dissipation holes, and multiple second heat dissipation protrusions evenly distributed along the heat dissipation fins.

[0012] Furthermore, an inverter socket is located on the left side of the front of the casing, and an inverter switch is located on the right side of the front of the casing.

[0013] Furthermore, a wire hole is provided at the bottom right side of the back panel, and a protective sleeve is installed on the inner wall of the wire hole.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features aluminum alloy heat sinks installed on the left and right sides of the casing, with multiple heat dissipation holes and fins on the aluminum alloy body of the heat sinks. The heat dissipation holes not only reduce the overall weight but also maintain the structural strength of the aluminum alloy heat sink, making it less prone to deformation under pressure. At the same time, the first and second heat dissipation protrusions on the heat dissipation holes and fins form a corrugated heat dissipation surface, which increases the contact area with air. When air flows through the gaps between the heat dissipation holes and fins, the internal components dissipate heat to the outside more quickly, increasing the heat dissipation area of ​​the inverter casing and reducing the energy loss of the photovoltaic power generation inverter.

[0017] This invention inserts two aluminum alloy heat sinks from the left and right sides of the casing, respectively. At this time, the bent parts on the left and right sides of the bottom plate and top plate are inserted into the slots on the aluminum alloy body, preventing the aluminum alloy heat sinks from moving left and right. Then, the heat sinks are fixedly connected to the extensions on the bottom plate and top plate by the first screw, which makes the assembly of the inverter casing more convenient. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2This is a rear-view three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a front view structural diagram of this utility model.

[0021] Figure 4 This is an exploded structural diagram of the present invention.

[0022] Figure 5 This is a rear view structural diagram of the aluminum alloy heat sink of this utility model.

[0023] Figure 6 This is a structural schematic diagram of the outer shell of this utility model.

[0024] The labels in the attached diagram are as follows: 1. Outer casing; 2. Aluminum alloy heat sink; 3. Back plate; 4. Aluminum alloy body; 5. Heat dissipation hole; 6. First heat dissipation protrusion; 7. Heat dissipation fins; 8. Second heat dissipation protrusion; 9. Heat dissipation hole; 10. Inverter socket; 11. Inverter switch; 12. Wiring hole; 101. Base plate; 102. Mounting plate; 103. Top plate; 104. Extension; 105. First screw; 106. Bending part; 107. Second screw; 108. Third screw; 201. Slot; 202. Front mounting hole; 203. Rear mounting hole. Detailed Implementation

[0025] This specific embodiment is an aluminum alloy heat dissipation structure for a photovoltaic power generation inverter, and its structural schematic diagram is shown below. Figures 1-6 As shown, the structure includes an outer shell 1, which is U-shaped and has aluminum alloy heat sinks 2 installed on both the left and right sides. A back plate 3 is detachably installed on the back of the outer shell 1. The aluminum alloy heat sink 2 includes an aluminum alloy body 4, which is made of 6063 aluminum alloy. Multiple heat dissipation holes 5 are provided on the aluminum alloy body 4. The heat dissipation holes 5 not only reduce the overall weight but also maintain the structural strength of the aluminum alloy heat sink 2, making it less prone to deformation under pressure. The heat dissipation holes 5 penetrate through the front and rear sides of the aluminum alloy body 4, and multiple first heat dissipation protrusions 6 are fixedly connected to the inner wall. The aluminum alloy body 4 is located away from the outer shell 1. Multiple heat dissipation fins 7 are fixedly connected to one side of the inverter housing. Multiple second heat dissipation protrusions 8 are fixedly connected to the upper and lower sides of the heat dissipation fins 7. The heat dissipation holes 5 and the first heat dissipation protrusions 6 and second heat dissipation protrusions 8 on the heat dissipation fins 7 form a corrugated heat dissipation surface, which can increase the contact area with air. When air flows through the gap between the heat dissipation holes 5 and the heat dissipation fins 7, the internal components can dissipate heat to the outside more quickly, increasing the heat dissipation area of ​​the inverter housing. Heat dissipation holes 9 are provided on the left and right sides of the upper surface of the housing 1. The heat dissipation holes 9 can exchange air with the outside for better heat dissipation.

[0026] like Figure 1 and Figure 6As shown: In this embodiment, the outer shell 1 includes a bottom plate 101, a mounting plate 102 and a top plate 103 connected in sequence. The bottom plate 101, the mounting plate 102 and the top plate 103 are integrally bent, which makes the processing of the outer shell 1 more convenient.

[0027] like Figure 2 , Figure 4 and Figure 5 As shown: In this embodiment, slots 201 are provided on both the upper and lower sides of the aluminum alloy body 4. The back of the bottom plate 101 and the top plate 103 are bent with extensions 104. The back plate 3 extends to the aluminum alloy body 4 and is provided with first screws 105 on both the upper and lower sides. The first screws 105 are threadedly connected to the extensions 104. The left and right sides of the bottom plate 101 and the top plate 103 are bent with bending portions 106, which are located inside the slots 201.

[0028] By inserting two aluminum alloy heat sinks 2 from the rear side into the left and right sides of the outer casing 1 respectively, the bent portions 106 on the left and right sides of the bottom plate 101 and top plate 103 will be inserted into the slots 201 on the aluminum alloy body 4, preventing the aluminum alloy heat sinks 2 from moving left and right. Then, they are fixedly connected to the extension portions 104 on the bottom plate 101 and top plate 103 by the first screw 105, which makes the assembly of the inverter casing more convenient, and the aluminum alloy heat sinks 2 can be removed and reused.

[0029] like Figure 4 and Figure 5 As shown: In this embodiment, the front mounting hole 202 and the rear mounting hole 203 are provided on the front and rear sides of the aluminum alloy body 4. The second screw 107 is provided on both the left and right sides of the mounting plate 102. The second screw 107 is threaded to the front mounting hole 202. The third screw 108 is provided on both the left and right sides of the back plate 3. The third screw 108 is threaded to the rear mounting hole 203. This makes the mounting plate 102 and the back plate 3 of the outer shell 1 more firmly fixed to the aluminum alloy body 4, and prevents the aluminum alloy body 4 from shifting.

[0030] like Figure 1 and Figure 5 As shown: In this embodiment, both the first heat dissipation protrusion 6 and the second heat dissipation protrusion 8 are arc-shaped structures. Multiple first heat dissipation protrusions 6 are evenly distributed along the inner wall of the heat dissipation hole 5, and multiple second heat dissipation protrusions 8 are evenly distributed along the heat dissipation fins 7. The arc-shaped structure can reduce stress and avoid breakage, while increasing the contact area with air. When air flows through the gap between the heat dissipation hole 5 and the heat dissipation fins 7, the internal components can dissipate heat to the outside more quickly.

[0031] like Figure 1 and Figure 2As shown: In this embodiment, an inverter socket 10 is provided on the left side of the front of the housing 1, and an inverter switch 11 is provided on the right side of the front of the housing 1; a wire hole 12 is provided at the bottom right side of the back plate 3, and a protective sleeve is installed on the inner wall of the wire hole 12. The protective sleeve is made of hollow rubber material; the inverter socket 10 can be connected to electrical appliances, and the inverter switch 11 controls the on and off of the circuit, making it more convenient to use. The wire hole 12 facilitates the wiring of internal components.

[0032] Working principle: During use, two aluminum alloy heat sinks 2 are inserted from the rear side from the left and right sides of the outer casing 1, respectively. At this time, the bent portions 106 on the left and right sides of the bottom plate 101 and top plate 103 will insert into the slots 201 on the aluminum alloy body 4, preventing the aluminum alloy heat sinks 2 from moving left and right. Then, they are fixedly connected to the extensions 104 on the bottom plate 101 and top plate 103 by the first screw 105, forming the outer casing of the inverter. Because the aluminum alloy heat sinks 2 are installed on the left and right sides of the outer casing 1, and the aluminum alloy body 4 of the aluminum alloy heat sink 2 is fixedly connected to the bottom plate 101 and top plate 103, the inverter outer casing is formed. Multiple heat dissipation holes 5 and heat dissipation fins 7 are provided on the surface. The heat dissipation holes 5 not only reduce the overall weight, but also maintain the structural strength of the aluminum alloy heat sink 2, making it less prone to deformation under pressure. At the same time, the first heat dissipation protrusion 6 and the second heat dissipation protrusion 8 on the heat dissipation holes 5 and heat dissipation fins 7 form a corrugated heat dissipation surface, which can increase the contact area with air. When air flows through the gap between the heat dissipation holes 5 and heat dissipation fins 7, the internal components can dissipate heat to the outside more quickly, increasing the heat dissipation area of ​​the inverter housing and reducing the energy loss of the photovoltaic power generation inverter.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An aluminum alloy heat dissipation structure for a photovoltaic power generation inverter, the structure comprising a shell (1), characterized in that: The outer shell (1) has a U-shaped structure and aluminum alloy heat sinks (2) are installed on both the left and right sides. A back plate (3) is detachably installed on the back of the outer shell (1). The aluminum alloy heat sink (2) includes an aluminum alloy body (4). Multiple heat dissipation holes (5) are opened on the aluminum alloy body (4). The heat dissipation holes (5) penetrate the front and rear sides of the aluminum alloy body (4) and multiple first heat dissipation protrusions (6) are fixedly connected to the inner wall. Multiple heat dissipation fins (7) are fixedly connected to the side of the aluminum alloy body (4) away from the outer shell (1). Multiple second heat dissipation protrusions (8) are fixedly connected to the upper and lower sides of the heat dissipation fins (7). Heat dissipation holes (9) are opened on both the left and right sides of the upper surface of the outer shell (1).

2. The aluminum alloy heat dissipation structure for photovoltaic inverters according to claim 1, characterized in that, The outer shell (1) includes a bottom plate (101), a mounting plate (102) and a top plate (103) connected in sequence, and the bottom plate (101), the mounting plate (102) and the top plate (103) are integrally bent.

3. The aluminum alloy heat dissipation structure for photovoltaic inverters according to claim 2, characterized in that, The aluminum alloy body (4) has slots (201) on both the upper and lower sides. The back of the bottom plate (101) and the top plate (103) are bent with extensions (104). The back plate (3) extends to the aluminum alloy body (4) and has first screws (105) on both the upper and lower sides. The first screws (105) are threaded to the extensions (104). The left and right sides of the bottom plate (101) and the top plate (103) are bent with bending parts (106). The bending parts (106) are located inside the slots (201).

4. The aluminum alloy heat dissipation structure for photovoltaic inverters according to claim 3, characterized in that, The aluminum alloy body (4) has a front mounting hole (202) and a rear mounting hole (203) on its front and rear sides. The mounting plate (102) has a second screw (107) on both its left and right sides. The second screw (107) is threaded to the front mounting hole (202). The back plate (3) has a third screw (108) on both its left and right sides. The third screw (108) is threaded to the rear mounting hole (203).

5. The aluminum alloy heat dissipation structure for photovoltaic inverters according to claim 4, characterized in that, The first heat dissipation protrusion (6) and the second heat dissipation protrusion (8) are both arc-shaped structures. Multiple first heat dissipation protrusions (6) are evenly distributed along the inner wall of the heat dissipation hole (5), and multiple second heat dissipation protrusions (8) are evenly distributed along the heat dissipation fins (7).

6. The aluminum alloy heat dissipation structure for photovoltaic inverters according to claim 5, characterized in that, An inverter socket (10) is provided on the left side of the front of the housing (1), and an inverter switch (11) is provided on the right side of the front of the housing (1).

7. The aluminum alloy heat dissipation structure for photovoltaic inverters according to claim 6, characterized in that, A threading hole (12) is provided at the bottom right side of the back plate (3), and a protective sleeve is installed on the inner wall of the threading hole (12).

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