Photovoltaic inverter and heat dissipation device thereof

Abstract

The utility model relates to the field of inverters, and discloses a photovoltaic inverter and a heat dissipation device thereof, and the photovoltaic inverter is characterized in that a cavity is formed in a device main body, and a heat dissipation device is arranged in the cavity; the fan box is detachably installed on the device body, and a fan opposite to the radiator is arranged in the fan box. According to the heat dissipation device of the photovoltaic inverter, the fan box is installed in the heat dissipation device of the photovoltaic inverter, when a fan needs to be replaced or maintained, the whole photovoltaic inverter box body does not need to be taken down and disassembled, only the fan box needs to be disassembled independently, and a good convenience effect is provided for maintenance personnel.

Description

Technical Field

[0001] The utility model relates to the field of inverters, in particular to a photovoltaic inverter and a heat dissipation device thereof. Background Art

[0002] There are many ways to dissipate heat for photovoltaic inverters, including air cooling. The main components of a heat dissipation device that works in this way include a radiator and a fan. When the photovoltaic inverter is working, the heat-generating components inside it will generate heat, which will be conducted through the radiator and then taken away from the ventilation holes of the device by forced convection through the fan, thereby achieving a better heat dissipation effect.

[0003] For example, in the patent application with application number 202010439880.8, the radiator and fan are located on the heat dissipation compartment housing of the photovoltaic inverter, and the two can cooperate with each other to achieve air-cooled heat dissipation. Regarding the maintenance of the heat dissipation device of the photovoltaic inverter, because the heat dissipation fan is a wearing part, it often needs to be replaced and cleaned of dust. The fans of photovoltaic inverters in the prior art are mostly installed inside the photovoltaic inverter box by directly fixing with screws. When maintaining the fan, the maintenance personnel need to remove and disassemble the entire box, and then remove the fan in the heat dissipation device, which makes replacement and maintenance inconvenient. Utility Model Content

[0004] The utility model provides a photovoltaic inverter and a heat dissipation device thereof, which can overcome certain defects of the prior art.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions, which include:

[0006] A heat dissipation device comprises a device body and a fan box;

[0007] A cavity is formed inside the device body, and a heat sink is arranged in the cavity;

[0008] The fan box is detachably mounted on the device body, and a fan arranged opposite to the radiator is arranged in the fan box.

[0009] In the utility model, a fan box is installed in the heat dissipation device of the photovoltaic inverter. When the fan needs to be replaced or maintained, there is no need to remove and disassemble the entire photovoltaic inverter box. Only the fan box needs to be disassembled separately, which provides better convenience for maintenance personnel.

[0010] Preferably, the fan box includes a chassis and a mounting plate; the fan is mounted on the chassis, the mounting plate is mounted on the chassis, the side of the device body has a first opening for passing through the cavity, and the chassis is inserted into the cavity of the device body through the first opening.

[0011] Preferably, the fan box also includes a connecting plate and a limit plate; the mounting plate and the limit plate are connected in parallel through the connecting plate; the mounting plate has a first limit hole, the limit plate has a second limit hole, and the outer side surface of the device body is installed with a support rod for passing through the first limit hole and the second limit hole.

[0012] Through the cooperation of the support rod, the first limiting hole and the second limiting hole in the utility model, maintenance personnel can lift out the entire fan box along the support rod when removing the fan box.

[0013] Preferably, a second opening is provided on the chassis for penetrating the chassis, an air outlet is provided at the bottom of the device body, and an air inlet is provided at the top of the device body.

[0014] Preferably, the second opening and the air outlet are coaxially arranged.

[0015] Preferably, the mounting plate is fixed to the outer side surface of the device body by a first screw, and the fan is fixed to the chassis by a second screw.

[0016] A photovoltaic inverter comprises a photovoltaic inverter body; the heat dissipation device is installed on the photovoltaic inverter.

[0017] Preferably, the photovoltaic inverter further comprises a bracket for mounting the photovoltaic inverter body on a wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1-2 is a schematic structural diagram of the heat dissipation device in Example 1;

[0019] Figure 3 Schematic diagram of the structure of the photovoltaic inverter in Example 1. DETAILED DESCRIPTION

[0020] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0021] Example 1

[0022] like Figure 1-2 As shown, a heat dissipation device includes a device body 101 and a fan box; a cavity 113 is formed inside the device body 101, and a heat sink 102 is arranged in the cavity 113;

[0023] The fan box is detachably mounted on the device body 101 , and a fan 202 is disposed in the fan box and is opposite to the radiator 102 .

[0024] By installing a fan box in the heat dissipation device of the photovoltaic inverter in this embodiment, when the fan needs to be replaced or maintained, there is no need to remove and disassemble the entire photovoltaic inverter box, only the fan box needs to be removed separately, which provides better convenience for maintenance personnel.

[0025] In this embodiment, the fan box includes a chassis 103 and a mounting plate 104;

[0026] The fan 202 is mounted on the chassis 103 , the mounting plate 104 is mounted on the chassis 103 , the side of the device body 101 has a first opening 201 for penetrating the cavity 113 , and the chassis 103 is inserted into the cavity 113 of the device body 101 through the first opening 201 .

[0027] In this embodiment, the fan box also includes a connecting plate 105 and a limiting plate 106; the mounting plate 104 and the limiting plate 106 are connected in parallel through the connecting plate 105; the mounting plate 104 has a first limiting hole 104A, the limiting plate 106 has a second limiting hole 106A, and the outer side surface of the device body 101 is installed with a support rod 107 for passing through the first limiting hole 104A and the second limiting hole 106A.

[0028] Through the cooperation of the support rod 107, the first limiting hole 104A and the second limiting hole 106A in the present embodiment, when the heat dissipation device is working normally, that is, when the fan 202 rotates to blow air to the radiator 102, the fan 202 and the chassis 103 are in the device body 101, the mounting plate is tightly attached to and fixed to the outer side of the device body 101, and the support rod 107 passes through the first limiting hole 104A and the second limiting hole 106A to support the fan box; and when the fan 202 needs maintenance, the maintenance personnel first remove the mounting plate of the fan box from the first opening 201 of the device body 101, and then pinch the connecting plate with one hand to remove the fan box. The connecting plate 105 or the limiting plate 106 is used to lift the entire fan box out along the support rod 107; at this time, the lower end of the first opening 201 supports the chassis 103, and the support rod 107 also plays an auxiliary supporting role. The maintenance personnel do not need to use their hands to assist in supporting the chassis to pull out the fan box; after the fan box is pulled out, the fan 202 can be removed from the chassis for maintenance; when the maintenance is completed, the maintenance personnel install the fan 202 on the chassis 103, and then insert the chassis 103 into the cavity of the device body 101 through the cooperation of the two limiting holes and the support rod 107, and finally fix the fan box and the device body 101.

[0029] In this embodiment, a second opening 203 is provided on the chassis for penetrating the chassis 103 , an air outlet 110 is provided at the bottom of the device body 101 , and an air inlet 111 is provided at the top of the device body 101 .

[0030] In this embodiment, the second opening 203 and the air outlet 110 are coaxially arranged.

[0031] In this embodiment, the mounting plate 104 is fixed to the outer side of the device body 101 by means of first screws 108 , and the fan 202 is fixed to the chassis 103 by means of second screws 109 .

[0032] like Figure 3 As shown, a photovoltaic inverter includes a photovoltaic inverter body 301;

[0033] It also includes a heat dissipation device, which is installed on the photovoltaic inverter body 301;

[0034] In this embodiment, a bracket 302 for mounting the photovoltaic inverter body 301 on a wall is also included.

[0035] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0036] The above is a schematic description of the present invention and its implementation methods, which is not restrictive. The embodiments shown are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A heat dissipation device, characterized in that: It includes a device body and a fan box; A cavity (113) is formed inside the device body (101), and a heat sink (102) is arranged inside the cavity (113); The fan box is detachably mounted on the device body (101), and a fan (202) is arranged in the fan box and is arranged opposite to the radiator (102).

2. A heat dissipation device according to claim 1, characterized in that: The fan box comprises a chassis (103) and a mounting plate (104); The fan (202) is mounted on the chassis (103), the mounting plate (104) is mounted on the chassis (103), the side surface of the device body (101) has a first opening (201) for penetrating the cavity (113), and the chassis (103) is inserted into the cavity (113) of the device body (101) through the first opening (201).

3. A heat dissipation device according to claim 2, characterized in that: The fan box also includes a connecting plate (105) and a limiting plate (106); the mounting plate (104) and the limiting plate (106) are connected in parallel via the connecting plate (105); the mounting plate (104) has a first limiting hole (104A), the limiting plate (106) has a second limiting hole (106A), and a support rod (107) for penetrating the first limiting hole (104A) and the second limiting hole (106A) is installed on the outer side surface of the device body (101).

4. A heat dissipation device according to claim 2, characterized in that: The chassis is provided with a second opening (203) for penetrating the chassis (103), the bottom of the device body (101) is provided with an air outlet (110), and the top of the device body (101) is provided with an air inlet (111).

5. A heat dissipation device according to claim 4, characterized in that: The second opening (203) and the air outlet (110) are coaxially arranged.

6. A heat dissipation device according to claim 2, characterized in that: The mounting plate (104) is fixed to the outer side surface of the device body (101) by means of a first screw (108), and the fan (202) is fixed to the chassis (103) by means of a second screw (109).

7. A photovoltaic inverter, comprising a photovoltaic inverter body (301), characterized in that: It also comprises a heat dissipation device as described in any one of claims 1 to 5, wherein the heat dissipation device is installed on the photovoltaic inverter body (301).

8. A photovoltaic inverter according to claim 7, characterized in that: Also included is a bracket (302) for mounting the photovoltaic inverter body (301) on a wall.

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