Distributed photovoltaic inverter

Abstract

The utility model relates to the technical field of photovoltaic inverters, in particular to a distributed photovoltaic inverter. The inverter comprises an inverter body, the surface of the inverter body is provided with heat dissipation holes, the inner surface of the inverter body is provided with a heat dissipation device, the heat dissipation device comprises a heat dissipation frame, the heat dissipation frame is fixedly connected with the inner surface of the inverter body, the inner surface of the heat dissipation frame is provided with two sliding grooves, and the two sliding grooves are fixedly connected with the heat dissipation frame. The inner surfaces of the two heat dissipation frame sliding grooves are slidably connected with heat dissipation fans, the surface of the heat dissipation frame is fixedly connected with two rotating blocks, the sides, close to each other, of the two rotating blocks are rotatably connected with rotating rods, baffles are fixed to the arc surfaces of the rotating rods, and the surface of the heat dissipation frame is fixedly connected with two fixing rods. The problems that the temperature in the inverter body is too high, the service life of electronic elements in the inverter body is shortened, and the electronic elements are prone to faults are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic inverters, in particular to a distributed photovoltaic inverter. Background Art

[0002] Inversion refers to the process of converting direct current into alternating current, an inverter circuit refers to a circuit that can perform the inversion function, and an inverter refers to a device that can perform the inversion function. Photovoltaic inverter (also known as power regulator) is a type of inverter. This type of inverter is often used in photovoltaic power generation systems, so it is called a photovoltaic inverter.

[0003] A Chinese patent application CN202220713369.7 discloses a photovoltaic inverter, the key points of its technical solution are: the device is provided with a fixed component, and the fixed block is driven to reciprocate by the power component, and a groove is provided on the fixed block, so that the support rod can drive the fixed plate to rotate through the groove during the forward and backward movement of the fixed block, and a fixed rod is fixedly installed on the lower surface of the fixed plate, so that the fixed plate drives the movable block to move through the fixed rod during the movement, and the fixed column is installed on the surface of the movable block, thereby driving the installation block to adjust the angle, so that the body is fixed in the fixed box, so that it will not move under the influence of external force.

[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when the inverter body is in use, the electronic components inside the inverter body will generate a large amount of heat. The heat accumulates in the inverter body for a long time, which will cause the temperature inside the inverter body to be too high, thereby causing the service life of the electronic components in the inverter body to be reduced; therefore, a distributed photovoltaic inverter is proposed to address the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that the temperature inside the inverter body is too high, which leads to a reduction in the service life of electronic components in the inverter body and causes the electronic components to easily fail, and to propose a distributed photovoltaic inverter.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a distributed photovoltaic inverter, including an inverter body, a surface of the inverter body is provided with heat dissipation holes, the inner surface of the inverter body is provided with a heat dissipation device, the heat dissipation device includes a heat dissipation frame, the heat dissipation frame is fixedly connected to the inner surface of the inverter body, the inner surface of the heat dissipation frame is provided with two slide grooves, the inner surfaces of the two heat dissipation frame slide grooves are slidably connected with a heat dissipation fan, the surface of the heat dissipation frame is fixedly connected with two rotating blocks, the two rotating blocks are rotatably connected with a rotating rod on one side close to each other, and a baffle is fixed on the arc surface of the rotating rod.

[0007] The effect achieved by the above components is: by setting up the heat dissipation device, the heat dissipation of the inverter body is facilitated, the temperature inside the inverter body is avoided to be too high, which leads to a reduction in the service life of the electronic components in the inverter body and makes the electronic components prone to failure, thereby improving the practicality of the equipment.

[0008] Preferably, two fixing rods are fixedly connected to the surface of the heat dissipation rack, an operating panel is slidably connected to the arc surface of the fixing rods, an insertion rod is fixedly connected to the side of the operating panel close to the heat dissipation rack, a slot is provided on the surface of the baffle, and the size of the insertion rod is matched with the size of the slot.

[0009] The effect achieved by the above components is: the baffle can be fixed, which makes it convenient for the staff to quickly open the baffle and take out the cooling fan for maintenance.

[0010] Preferably, the arc surface of the rotating rod is sleeved with two torsion springs, and two ends of the torsion springs are fixedly connected to the rotating block and the baffle respectively.

[0011] The effect achieved by the above components is that the torsion force of the torsion spring achieves the effect of automatically opening the baffle, while keeping the baffle in an open state, thereby making it convenient for workers to disassemble and install the cooling fan.

[0012] Preferably, a groove is formed at one end of the fixing rod away from the heat dissipation frame, and a blocking block is fixedly connected to the inner surface of the fixing rod groove.

[0013] The effect achieved by the above-mentioned components is: achieving the effect of limiting the operating panel, avoiding the situation in which the operating panel falls off from the arc surface of the fixing rod due to excessive force applied by the staff when moving the operating panel.

[0014] Preferably, a sunshade device is provided on the surface of the inverter body, and the sunshade device includes a fixing plate, the fixing plate is fixedly connected to the surface of the inverter body, a round rod is rotatably connected to the surface of the fixing plate, and a sunshade is fixedly connected to the arc surface of the round rod.

[0015] The effect achieved by the above components is: by setting up the sunshade device, the inverter body is shaded, which prevents sunlight from directly hitting the surface of the inverter body, causing the temperature inside the inverter body to be too high, resulting in a reduction in the service life of electronic components in the inverter body, thereby improving the practicality of the equipment.

[0016] Preferably, two connecting rods are fixedly connected to the surface of the fixed plate, one end of the connecting rod away from the fixed plate is fixedly connected to the connecting plate, a limit rod is slidably inserted in the connecting plate, and two limit grooves are provided on the surface of the sun visor, the size of the limit rod is adapted to the size of the limit groove of the sun visor, and one end of the limit rod is fixedly connected to a handle.

[0017] The effect achieved by the above components is: the sun visor can be fixed, which prevents the sun visor from being rotated by excessive wind, causing the sun visor to be passively opened, resulting in a reduction in the sun shading effect of the sun visor.

[0018] Preferably, the arc surface of the limiting rod is sleeved with a spring, and two ends of the spring are fixedly connected to the connecting plate and the handle respectively.

[0019] The effect achieved by the above components is that the resilience of the spring achieves the effect of automatically bringing the limit rod back, while limiting the handle from driving the limit rod to move, thereby improving the stability of the limit rod when limiting.

[0020] In summary, the beneficial effects of the utility model are:

[0021] 1. In the utility model, by providing a heat dissipation device, the inverter body is facilitated to dissipate heat, thereby avoiding excessive temperature inside the inverter body, which would reduce the service life of the electronic components inside the inverter body and make the electronic components prone to failure, thereby improving the practicality of the equipment.

[0022] 2. In the utility model, by setting a sunshade device, the inverter body is shaded, which prevents sunlight from directly hitting the surface of the inverter body, causing the temperature inside the inverter body to be too high, resulting in a reduction in the service life of electronic components in the inverter body, thereby improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the heat dissipation device in the utility model;

[0025] Figure 3 It is an isolated diagram of the heat dissipation device in the utility model;

[0026] Figure 4 For the utility model Figure 3 A magnified image of point A;

[0027] Figure 5 It is a structural schematic diagram of the sunshade device in the utility model;

[0028] Figure 6 For the utility model Figure 5 Enlarged view of point B.

[0029] Legend: 1. Inverter body; 2. Heat dissipation device; 3. Sunshade device; 201. Heat dissipation rack; 202. Cooling fan; 203. Rotating block; 204. Rotating rod; 205. Baffle; 206. Fixed rod; 207. Operating panel; 208. Insert rod; 209. Stop block; 210. Torsion spring; 31. Fixed plate; 32. Round rod; 33. Sunshade; 34. Connecting rod; 35. Connecting plate; 36. Limiting rod; 37. Handle; 38. Spring. DETAILED DESCRIPTION

[0030] Reference Figure 1 As shown, the utility model provides a technical solution: a distributed photovoltaic inverter, including an inverter body 1, a surface of the inverter body 1 is provided with heat dissipation holes, and the inner surface of the inverter body 1 is provided with a heat dissipation device 2. By setting the heat dissipation device 2, the effect of facilitating the heat dissipation of the inverter body 1 is achieved, and the temperature inside the inverter body 1 is avoided to be too high, resulting in a reduction in the service life of electronic components in the inverter body 1, causing the electronic components to be prone to failure, thereby improving the practicality of the equipment. The surface of the inverter body 1 is provided with a sunshade device 3. By setting the sunshade device 3, the effect of shading the inverter body 1 is achieved, and the direct sunlight to the surface of the inverter body 1 is avoided, resulting in an excessively high temperature inside the inverter body 1, resulting in a reduction in the service life of electronic components in the inverter body 1, thereby improving the practicality of the equipment.

[0031] The specific configuration and functions of the heat dissipation device 2 and the sunshade device 3 are described in detail below.

[0032] Reference Figure 2 , Figure 3 and Figure 4As shown, in this embodiment: the heat dissipation device 2 includes a heat dissipation frame 201, the heat dissipation frame 201 is fixedly connected to the inner surface of the inverter body 1, the inner surface of the heat dissipation frame 201 is provided with two slide grooves, the inner surfaces of the two heat dissipation frame 201 slide grooves are slidably connected with a heat dissipation fan 202, the surface of the heat dissipation frame 201 is fixedly connected with two rotating blocks 203, the side of the two rotating blocks 203 close to each other is rotatably connected with a rotating rod 204, the arc surface of the rotating rod 204 is fixed with a baffle 205, the surface of the heat dissipation frame 201 is fixedly connected with two fixed rods 206, the arc surface of the fixed rod 206 is slidably connected with an operating panel 207, the side of the operating panel 207 close to the heat dissipation frame 201 is fixedly connected with an insertion rod 208, and the surface of the baffle 205 is provided with a slot, The size of the plug rod 208 is matched with the size of the slot. When the inverter body 1 starts to work, the cooling fan 202 starts, thereby accelerating the air flow rate inside and outside the inverter body 1 and reducing the temperature inside the inverter body 1. When the cooling fan 202 fails, it needs to be repaired in time to avoid causing the temperature inside the inverter body 1 to be too high. Pull the operating panel 207, and the operating panel 207 slides on the arc surface of the fixed rod 206. The operating panel 207 drives the plug rod 208 to move. When the plug rod 208 is completely detached from the inner surface of the baffle 205 slot, the plug rod 208 releases the limit on the baffle 205, rotate the baffle 205, and after the baffle 205 is fully opened, move the cooling fan 202. The cooling fan 202 is in the slide groove of the heat sink 201. The inner surface slides until the heat dissipation fan 202 is completely separated from the inner surface of the slide groove of the heat dissipation frame 201. At this time, the staff can repair and replace the heat dissipation fan 202. After the repair is completed, the heat dissipation fan 202 is put back in place and the baffle 205 is closed. When the baffle 205 is completely closed, the operation plate 207 is pushed, and the operation plate 207 drives the plug 208 to move until the plug 208 is inserted into the inner surface of the baffle 205 slot, thereby achieving the effect of fixing the baffle 205, which is convenient for the staff to quickly open the baffle 205 and take out the heat dissipation fan 202 for maintenance. The arc surface of the rotating rod 204 is covered with two torsion springs 210. The two ends of the torsion spring 210 are fixedly connected to the rotating block 203 and the baffle 205 respectively. When the operating plate 207 is moved, the operating plate 207 drives the plug 208 to move. When the plug 208 is completely disengaged from the inner surface of the baffle 205 slot, the plug 208 releases the limit on the baffle 205, and the torsion force of the torsion spring 210 drives the baffle 205 to rotate, and the baffle 205 drives the rotating rod 204 to rotate on the surface of the rotating block 203 until the baffle 205 is fully opened. At this time, the staff can take out the cooling fan 202. The torsion force of the torsion spring 210 achieves the effect of automatically opening the baffle 205, and keeps the baffle 205 in an open state, so as to facilitate the staff to disassemble and install the cooling fan 202. A groove is provided at one end of the fixing rod 206 away from the heat sink 201, and a blocking block 209 is fixedly connected to the inner surface of the groove of the fixing rod 206.When the staff needs to open the baffle 205, they move the operating plate 207, which drives the plug 208 to move. When the surface of the operating plate 207 contacts the blocking block 209, the plug 208 completely disengages from the inner surface of the slot of the baffle 205. At this time, the staff can open the baffle 205, which achieves the effect of restricting the operating plate 207 and avoids the situation where the staff uses too much force when moving the operating plate 207, causing the operating plate 207 to fall off the arc surface of the fixing rod 206.

[0033] Reference Figure 5 and Figure 6 As shown, specifically, the sunshade device 3 includes a fixing plate 31, the fixing plate 31 is fixedly connected to the surface of the inverter body 1, the surface of the fixing plate 31 is rotatably connected with a round rod 32, the arc surface of the round rod 32 is fixedly connected with a sunshade 33, the surface of the fixing plate 31 is fixedly connected with two connecting rods 34, one end of the connecting rod 34 away from the fixing plate 31 is fixedly connected with a connecting plate 35, a limiting rod 36 is slidably inserted in the connecting plate 35, and two limiting grooves are provided on the surface of the sunshade 33, and the size of the limiting rod 36 is adapted to the size of the limiting groove of the sunshade 33. One end of the limit rod 36 is fixedly connected to a handle 37. When the staff needs to cover the sun visor 33 to the surface of the inverter body 1, the handle 37 is pulled, and the handle 37 drives the limit rod 36 to slide in the connecting plate 35. When the handle 37 moves to a suitable position, the sun visor 33 is rotated, and the sun visor 33 drives the round rod 32 to rotate on the surface of the fixed plate 31. When the sun visor 33 is rotated to the top of the inverter body 1, the limit rod 36 is located in front of the limit groove of the sun visor 33. The handle 37 is moved, and the handle 37 drives the limit rod 36 to move. When the limit rod 36 is inserted into the inner surface of the limit groove of the sun visor 33, the limit rod 36 fixes the sun visor 33, thereby achieving the effect of fixing the sun visor 33, avoiding excessive wind force from blowing the sun visor 33 to rotate, causing the sun visor 33 to passively open, resulting in a decrease in the sunshade effect of the sun visor 33. The arc surface of the limit rod 36 is covered with a spring 38, and the two ends of the spring 38 are fixedly connected to the connecting plate 35 and the handle 37 respectively. When the staff pulls the handle 37, the spring 38 is stretched, and the handle 37 drives the limit rod 36 to move. When the handle When 37 moves to the appropriate position, rotate the sun visor 33. When the sun visor 33 is rotated to the top of the inverter body 1, the limit rod 36 is located in front of the limit groove of the sun visor 33. Release the handle 37, and the rebound force of the spring 38 drives the handle 37 to move, and the handle 37 drives the limit rod 36 to move until the limit rod 36 is inserted into the inner surface of the limit groove of the sun visor 33. The rebound force of the spring 38 achieves the effect of automatically bringing the limit rod 36 back, and at the same time limits the movement of the limit rod 36 driven by the handle 37, thereby improving the stability of the limit rod 36 when limiting.

[0034] Working principle: when the inverter body 1 starts to work, the cooling fan 202 starts, thereby accelerating the air flow rate inside and outside the inverter body 1 and reducing the temperature inside the inverter body 1. When the cooling fan 202 fails, it needs to be repaired in time to avoid causing the temperature inside the inverter body 1 to be too high. Pull the operating panel 207, and the operating panel 207 slides on the arc surface of the fixed rod 206. The operating panel 207 drives the plug rod 208 to move. When the surface of the operating panel 207 contacts the blocking block 209, the plug rod 208 is completely disengaged from the inner surface of the slot of the baffle 205. The plug rod 208 releases the limit on the baffle 205, and the torsion of the torsion spring 210 drives the baffle 205 to rotate. The baffle 205 drives the rotating rod 204 to rotate on the surface of the rotating block 203 until the baffle 205 When the baffle 205 is fully opened, the staff can take out the cooling fan 202, and the torque of the torsion spring 210 achieves the effect of automatically opening the baffle 205, while keeping the baffle 205 in an open state, so as to facilitate the staff to disassemble and install the cooling fan 202, move the cooling fan 202, and the cooling fan 202 slides on the inner surface of the slide groove of the cooling rack 201 until the cooling fan 202 is completely separated from the inner surface of the slide groove of the cooling rack 201. At this time, the staff can repair and replace the cooling fan 202. After the repair is completed, the cooling fan 202 is put back in place and the baffle 205 is closed. When the baffle 205 is fully closed, the operating panel 207 is pushed, and the operating panel 207 drives the plug 208 to move. When the plug 208 is inserted into the inner surface of the slot of the baffle 205, the plug 208 limits the baffle 205.

[0035] When the staff needs to cover the sun visor 33 to the surface of the inverter body 1, the handle 37 is pulled, the spring 38 is stretched, and the handle 37 drives the limit rod 36 to slide in the connecting plate 35. When the handle 37 moves to a suitable position, the sun visor 33 is rotated, and the sun visor 33 drives the round rod 32 to rotate on the surface of the fixed plate 31. When the sun visor 33 is rotated to the top of the inverter body 1, the limit rod 36 is located in front of the limit groove of the sun visor 33, and the handle 37 is released. The handle 37 and the rebound force of the spring 38 drive the handle 37 to move, and the handle 37 drives the limit rod 36 to move until the limit rod 36 is inserted into the inner surface of the limit groove of the sun visor 33. The rebound force of the spring 38 achieves the effect of automatically bringing the limit rod 36 back, and at the same time limits the movement of the limit rod 36 driven by the handle 37, thereby improving the stability of the limit rod 36 when limiting. When the limit rod 36 is inserted into the inner surface of the limit groove of the sun visor 33, the limit rod 36 fixes the sun visor 33.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A distributed photovoltaic inverter, comprising an inverter body (1), characterized in that: The surface of the inverter body (1) is provided with heat dissipation holes, the inner surface of the inverter body (1) is provided with a heat dissipation device (2), the heat dissipation device (2) comprises a heat dissipation frame (201), the heat dissipation frame (201) is fixedly connected to the inner surface of the inverter body (1), the inner surface of the heat dissipation frame (201) is provided with two sliding grooves, the inner surfaces of the two sliding grooves of the heat dissipation frame (201) are slidably connected with a heat dissipation fan (202), the surface of the heat dissipation frame (201) is fixedly connected with two rotating blocks (203), the two rotating blocks (203) are rotatably connected with a rotating rod (204) on one side close to each other, and a baffle (205) is fixed on the arc surface of the rotating rod (204).

2. A distributed photovoltaic inverter according to claim 1, characterized in that: Two fixing rods (206) are fixedly connected to the surface of the heat dissipation rack (201); an operating panel (207) is slidably connected to the arc surface of the fixing rod (206); an insertion rod (208) is fixedly connected to a side of the operating panel (207) close to the heat dissipation rack (201); a slot is provided on the surface of the baffle (205); and the size of the insertion rod (208) matches the size of the slot.

3. A distributed photovoltaic inverter according to claim 1, characterized in that: The arc surface of the rotating rod (204) is sleeved with two torsion springs (210), and the two ends of the torsion spring (210) are respectively fixedly connected to the rotating block (203) and the baffle (205).

4. A distributed photovoltaic inverter according to claim 2, characterized in that: A groove is formed at one end of the fixing rod (206) away from the heat dissipation frame (201), and a blocking block (209) is fixedly connected to the inner surface of the groove of the fixing rod (206).

5. A distributed photovoltaic inverter according to claim 1, characterized in that: The surface of the inverter body (1) is provided with a sunshade device (3), and the sunshade device (3) comprises a fixing plate (31), the fixing plate (31) is fixedly connected to the surface of the inverter body (1), the surface of the fixing plate (31) is rotatably connected to a round rod (32), and the circular arc surface of the round rod (32) is fixedly connected to a sunshade plate (33).

6. A distributed photovoltaic inverter according to claim 5, characterized in that: Two connecting rods (34) are fixedly connected to the surface of the fixing plate (31), one end of the connecting rod (34) away from the fixing plate (31) is fixedly connected to a connecting plate (35), a limiting rod (36) is slidably inserted in the connecting plate (35), two limiting grooves are provided on the surface of the sun visor (33), the size of the limiting rod (36) is adapted to the size of the limiting groove of the sun visor (33), and one end of the limiting rod (36) is fixedly connected to a handle (37).

7. A distributed photovoltaic inverter according to claim 6, characterized in that: The arc surface of the limiting rod (36) is sleeved with a spring (38), and the two ends of the spring (38) are respectively fixedly connected to the connecting plate (35) and the handle (37).

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