Integrally-formed photovoltaic inverter assembly

Abstract

The utility model discloses an integrally formed photovoltaic inverter assembly, and belongs to the technical field of inverters. An integrally formed photovoltaic inverter assembly comprises an inverter, a main heat dissipation assembly and a secondary heat dissipation assembly. The inverter comprises an inverter body and a main box body, and the inverter body is fixedly arranged in the main box body; a heat dissipation plate is arranged on the back of the main box body; the main heat dissipation assembly is arranged on the lower side of the inverter, and the secondary heat dissipation assembly is arranged on the side face of the inverter. The main heat dissipation assembly is communicated with the interior of the main box body; the secondary heat dissipation assembly is communicated with the interior of the main box body and the outside; according to the inverter heat dissipation device, rapid heat dissipation of the inverter can be achieved, the heat dissipation effect is improved, and the inverter is protected when the inverter is not used.

Description

Technical Field

[0001] The utility model belongs to the technical field of inverters, and more specifically relates to an integrally formed photovoltaic inverter component. Background Art

[0002] Photovoltaic inverter is one of the important balance of systems (BOS) in photovoltaic array systems. It refers to an inverter that can convert the variable DC voltage generated by photovoltaic (PV) solar panels into alternating current (AC) at the mains frequency.

[0003] The photovoltaic inverter is the core equipment of the photovoltaic power generation system. It converts the direct current generated by the photovoltaic power generation system into alternating current, tracks the maximum output power of the photovoltaic module array, and uses its energy for electrical equipment applications or feeds it into the power grid with minimal conversion loss and the best power quality.

[0004] The heat dissipation structure of existing photovoltaic inverters generally adopts a heat sink to dissipate heat naturally, or a heat dissipation fan is arranged on the outside of the heat sink to dissipate heat. Since the inverter is located inside the energy conversion device and the internal space is small, the heat dissipation effect is not good only by heat sinks and heat fans. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an integrated photovoltaic inverter assembly, which can achieve rapid heat dissipation of the inverter, improve the heat dissipation effect, and protect the inverter when the inverter is not in use.

[0006] The utility model discloses an integrated photovoltaic inverter assembly, which includes an inverter, a main heat dissipation assembly and a secondary heat dissipation assembly. The inverter includes an inverter body and a main box, and the inverter body is fixedly arranged inside the main box. A heat dissipation plate is arranged on the back of the main box. The main heat dissipation assembly is arranged on the lower side of the inverter, and the secondary heat dissipation assembly is arranged on the side of the inverter. The main heat dissipation assembly is connected to the inside of the main box. The secondary heat dissipation assembly is connected to the inside of the main box and the outside.

[0007] As a further improvement of the utility model, the main heat dissipation assembly includes a plurality of heat sinks, a fin box and a heat conducting plate. The upper side of the fin box is connected to the lower side of the main box, and the interior of the fin box is connected to the interior of the main box. The upper side of the heat conducting plate is fixedly connected to the lower side of the inverter body. A plurality of heat sinks are evenly arranged on the lower side of the heat conducting plate.

[0008] As a further improvement of the utility model, the secondary heat dissipation assembly includes a heat dissipation fan and a fan box. The fan box is fixedly connected to one side of the main box. A vent is provided on one side where the main box is connected to the fan box, so that the main box and the fan box are connected. The heat dissipation fan is fixedly arranged on the rear side of the fan box, and the air outlet direction of the heat dissipation fan is the same as the air outlet direction of the heat dissipation plate.

[0009] As a further improvement of the utility model, it further comprises a shell cover which is fixedly arranged on the upper side of the main box body to close the inner space of the main box body.

[0010] As a further improvement of the present invention, the shell cover and the main box body are fixedly connected at their edges by sealing strips.

[0011] As a further improvement of the utility model, it further comprises a first support leg which is symmetrically arranged on both sides of the heat sink, the upper part of the first support leg is fixedly connected to the heat sink, and the lower side of the first support leg is flush with the lower side of the main heat sink assembly.

[0012] As a further improvement of the utility model, it also includes a second support leg which is symmetrically arranged opposite to the heat dissipation plate, the upper end of the second support leg is fixedly connected to the lower side of the main box body, and the lower side of the second support leg is flush with the lower side of the main heat dissipation assembly.

[0013] As a further improvement of the utility model, a protection component is also included. The protection component includes a dustproof component and a screen component. The dustproof component is arranged on the back of the heat sink and covers the surface of the heat sink when unfolded. The screen component is arranged on the upper side of the shell cover and covers the surface of the shell cover when unfolded.

[0014] As a further improvement of the utility model, the dustproof assembly includes a dustproof roller, a dustproof net and a first fixed hook. The dustproof roller and the first fixed hook are respectively arranged at two ends of the back side of the heat sink facing each other. The dustproof net is arranged around the dustproof roller and one end of the dustproof net is fixedly connected to the surface of the dustproof roller. A fixed ring is provided at the free end of the dustproof net, and when the dustproof net is unfolded, the fixed ring is hooked to the first fixed hook. The length of the dustproof net matches the length of the heat sink.

[0015] As a further improvement of the utility model, the screen assembly includes a screen roller, a screen and a second fixing hook. The screen roller and the second fixing hook are respectively arranged at the two ends of the upper side of the shell cover facing each other. The screen is arranged around the screen roller and one end of the screen is fixedly connected to the surface of the screen roller. A fixing ring is provided at the free end of the screen, and when the screen is unfolded, the fixing ring is hooked to the second fixing hook. The length of the screen matches the length of the shell cover. The screen is made of sunshade and rainproof material.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By setting up a main heat dissipation component and a secondary heat dissipation component, the main heat dissipation component forms a heat dissipation airflow inside the inverter through the heat dissipation plate from the back of the inverter, the heat sink dissipates heat on the lower side of the inverter, and the secondary heat dissipation component forms another heat dissipation channel on the side of the inverter through the fan, thereby taking away the heat inside the inverter from multiple directions, achieving rapid heat dissipation of the inverter and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the back side of the utility model;

[0020] Figure 3 It is a front view of the utility model;

[0021] Figure 4 It is a back view of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the heat sink and the heat conducting plate of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the protection component of the utility model.

[0024] Description of the numbers in the figure:

[0025] Inverter 1, main box 11, heat sink 12, main heat dissipation assembly 2, heat sink 21, fin box 22, heat conduction plate 23, secondary heat dissipation assembly 3, cooling fan 31, fan box 32, shell cover 4, first support foot 5, second support foot 6, protection assembly 7, dustproof roller 71, dustproof net 72, first fixed hook 73, net blocking roller 74, net blocking 75, second fixed hook 76. DETAILED DESCRIPTION

[0026] Specific embodiment 1: Please refer to Figure 1-Figure 5 An integrated photovoltaic inverter assembly includes an inverter 1, a main heat dissipation assembly 2 and a secondary heat dissipation assembly 3. The inverter 1 includes an inverter body and a main box 11, and the inverter body is fixedly arranged inside the main box 11. A heat dissipation plate 12 is arranged on the back of the main box 11. The main heat dissipation assembly 2 is arranged on the lower side of the inverter 1, and the secondary heat dissipation assembly 3 is arranged on the side of the inverter 1. The main heat dissipation assembly 2 is connected to the inside of the main box 11. The secondary heat dissipation assembly 3 is connected to the inside of the main box 11 and the outside.

[0027] In this embodiment, the main box 11 is formed as a whole by die-casting to improve the sealing effect of the inverter.

[0028] The main heat dissipation assembly 2 includes a plurality of heat sinks 21, a fin box 22 and a heat conducting plate 23. The upper side of the fin box 22 is connected to the lower side of the main box 11, and the interior of the fin box 22 is connected to the interior of the main box 11. The upper side of the heat conducting plate 23 is fixedly connected to the lower side of the inverter body. A plurality of heat sinks 21 are evenly arranged on the lower side of the heat conducting plate 23.

[0029] The secondary heat dissipation assembly 3 includes a heat dissipation fan 31 and a fan box 32. The fan box 32 is fixedly connected to one side of the main box 11. A vent is provided on one side where the main box 11 is connected to the fan box 32, so that the main box 11 and the fan box 32 are connected. The heat dissipation fan 31 is fixedly arranged on the rear side of the fan box 32, and the air outlet direction of the heat dissipation fan 31 is the same as the air outlet direction of the heat dissipation plate 12.

[0030] The main box body 11 also includes a shell cover 4. The shell cover 4 is fixedly arranged on the upper side of the main box body 11 to close the internal space of the main box body 11. The shell cover 4 and the main box body 11 are fixedly connected at the edges thereof by a sealing strip.

[0031] The first support leg 5 is also included. The first support leg 5 is symmetrically arranged on both sides of the heat dissipation plate 12, the upper part of the first support leg 5 is fixedly connected to the heat dissipation plate 12, and the lower side of the first support leg 5 is flush with the lower side of the main heat dissipation component 2.

[0032] The second support leg 6 is also included. The second support leg 6 is symmetrically arranged opposite to the heat dissipation plate 12, the upper end of the second support leg 6 is fixedly connected to the lower side of the main box body 11, and the lower side of the second support leg 6 is flush with the lower side of the main heat dissipation component 2.

[0033] At the same time, the photovoltaic inverter components are modularly installed with multiple components, which has high installation efficiency.

[0034] Specific embodiment 2: Please refer to Figure 6 , the same points as the first embodiment are not repeated here, and the difference is that: it also includes a protection component 7. The protection component 7 includes a dustproof component and a screen component. The dustproof component is arranged on the back of the heat sink 12, and covers the surface of the heat sink 12 when unfolded. The screen component is arranged on the upper side of the shell cover 4, and covers the surface of the shell cover 4 when unfolded.

[0035] The dustproof assembly includes a dustproof roller 71, a dustproof net 72 and a first fixing hook 73. The dustproof roller 71 and the first fixing hook 73 are respectively arranged at the two ends of the back of the heat sink 12 facing each other. The dustproof net 72 is arranged around the dustproof roller 71 and one end of the dustproof net 72 is fixedly connected to the surface of the dustproof roller 71. A fixing ring is provided at the free end of the dustproof net 72. When the dustproof net 72 is unfolded, the fixing ring is hooked on the first fixing hook 73. The length of the dustproof net 72 matches the length of the heat sink 12.

[0036] The screen assembly includes a screen roller 74, a screen 75 and a second fixing hook 76. The screen roller 74 and the second fixing hook 76 are respectively arranged at the two ends of the upper side of the shell cover 4 facing each other. The screen 75 is arranged around the screen roller 74 and one end of the screen 75 is fixedly connected to the surface of the screen roller 74. A fixing ring is provided at the free end of the screen 75. When the screen 75 is unfolded, the fixing ring is hooked to the second fixing hook 76. The length of the screen 75 matches the length of the shell cover 4. The screen 75 is made of sunshade and rainproof material.

Claims

1. An integrated photovoltaic inverter assembly, characterized in that: The invention comprises an inverter (1), a main heat dissipation component (2) and a secondary heat dissipation component (3); the inverter (1) comprises an inverter body and a main box (11), the inverter body being fixedly arranged inside the main box (11); a heat dissipation plate (12) being arranged on the back of the main box (11); the main heat dissipation component (2) being arranged on the lower side of the inverter (1), and the secondary heat dissipation component (3) being arranged on the side of the inverter (1); the main heat dissipation component (2) being connected to the inside of the main box (11); and the secondary heat dissipation component (3) being connected to the inside of the main box (11) and the outside.

2. The one-piece photovoltaic inverter assembly according to claim 1, characterized in that: The main heat dissipation assembly (2) comprises a plurality of heat sinks (21), a fin box (22) and a heat conducting plate (23); the upper side of the fin box (22) is connected to the lower side of the main box (11), and the interior of the fin box (22) is connected to the interior of the main box (11); the upper side of the heat conducting plate (23) is fixedly connected to the lower side of the inverter body; and the plurality of heat sinks (21) are evenly arranged on the lower side of the heat conducting plate (23).

3. The one-piece photovoltaic inverter assembly according to claim 1, characterized in that: The secondary heat dissipation assembly (3) comprises a heat dissipation fan (31) and a fan box (32); the fan box (32) is fixedly connected to one side of the main box (11); a ventilation hole is provided on one side where the main box (11) and the fan box (32) are connected, so that the main box (11) and the fan box (32) are connected; the heat dissipation fan (31) is fixedly arranged on the rear side of the fan box (32), and the air outlet direction of the heat dissipation fan (31) is the same as the air outlet direction of the heat dissipation plate (12).

4. The one-piece photovoltaic inverter assembly according to claim 1, characterized in that: It also includes a shell cover (4); the shell cover (4) is fixedly arranged on the upper side of the main box body (11) to close the internal space of the main box body (11).

5. The one-piece photovoltaic inverter assembly according to claim 4, characterized in that: The shell cover (4) and the main box body (11) are fixedly connected at the edges thereof by means of sealing strips.

6. The one-piece photovoltaic inverter assembly according to claim 1, characterized in that: It also includes a first supporting foot (5); the first supporting foot (5) is symmetrically arranged on both sides of the heat dissipation plate (12), the upper part of the first supporting foot (5) is fixedly connected to the heat dissipation plate (12), and the lower side surface of the first supporting foot (5) is flush with the lower side surface of the main heat dissipation component (2).

7. The one-piece photovoltaic inverter assembly according to claim 1, characterized in that: It also includes a second supporting foot (6); the second supporting foot (6) is symmetrically arranged opposite to the heat dissipation plate (12); the upper end of the second supporting foot (6) is fixedly connected to the lower side of the main box body (11); and the lower side of the second supporting foot (6) is flush with the lower side of the main heat dissipation component (2).

8. The one-piece photovoltaic inverter assembly according to claim 4, characterized in that: It also includes a protection component (7); the protection component (7) includes a dustproof component and a screen component; the dustproof component is arranged on the back of the heat sink (12) and covers the surface of the heat sink (12) when unfolded; the screen component is arranged on the upper side of the shell cover (4) and covers the surface of the shell cover (4) when unfolded.

9. The one-piece photovoltaic inverter assembly according to claim 8, characterized in that: The dustproof assembly comprises a dustproof roller (71), a dustproof net (72) and a first fixing hook (73); the dustproof roller (71) and the first fixing hook (73) are respectively arranged at two ends of the back side of the heat dissipation plate (12) facing each other in the upper and lower directions; the dustproof net (72) is arranged around the dustproof roller (71) and one end of the dustproof net (72) is fixedly connected to the surface of the dustproof roller (71); a fixing ring is provided at the free end of the dustproof net (72), and when the dustproof net (72) is unfolded, the fixing ring is hooked to the first fixing hook (73); the length of the dustproof net (72) matches the length of the heat dissipation plate (12).

10. The one-piece photovoltaic inverter assembly according to claim 8, characterized in that: The screen assembly comprises a screen roller (74), a screen (75) and a second fixing hook (76); the screen roller (74) and the second fixing hook (76) are respectively arranged at two ends of an upper side surface of a shell cover (4) facing each other; the screen (75) is arranged around the screen roller (74) and one end of the screen (75) is fixedly connected to the surface of the screen roller (74); a fixing ring is provided at the free end of the screen (75), and when the screen (75) is unfolded, the fixing ring is hooked to the second fixing hook (76); the length of the screen (75) matches the length of the shell cover (4); and the screen (75) is made of a sunshade and rainproof material.

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