Inverter heat dissipation device

Abstract

The present invention provides an inverter heat dissipation device, which relates to the technical field of inverter heat dissipation. The auxiliary heat dissipation device is installed around the fan suction port of the inverter radiator, and includes a body, a refrigeration unit, a heat dissipation unit and a power supply unit; the refrigeration unit is arranged on one side inside the body and connected to the outside, and is used to reduce the air temperature around the fan suction port of the inverter radiator; the heat dissipation unit is arranged on the other side inside the body and connected to the outside, and is used to dissipate heat and cool the auxiliary heat dissipation device itself; the power supply unit is arranged outside the body, and is used to supply power to the refrigeration unit and the heat dissipation unit in the auxiliary heat dissipation device. The inverter heat dissipation device of the present invention improves the cooling efficiency of the original inverter heat dissipation device under high external temperature conditions by reducing the air temperature at the fan suction port of the inverter radiator, thereby reducing the inverter temperature, improving the efficiency, and operating independently without affecting the original inverter.

Description

Technical Field

[0001] The present invention relates to the technical field of inverter heat dissipation, and in particular to an inverter heat dissipation device. Background Art

[0002] At present, the main way of heat dissipation for most photovoltaic inverters is air cooling, which mainly relies on fans and other devices to force air flow around the device to take away the heat emitted by the device, thereby achieving temperature control. Air cooling mainly relies on air convection to take away heat. When heat is generated inside the inverter, the fan starts to work and generates airflow. When the airflow passes through the heating device inside the inverter, it will take away the heat on the surface of the device and discharge it into the surrounding environment. In this way, the temperature inside the inverter will be controlled to prevent equipment failure or performance degradation caused by excessive temperature. Air cooling is widely used in photovoltaic inverters of various power levels because of its advantages in good heat dissipation effect, easy maintenance and low cost.

[0003] Simply put, the current heat dissipation device of the photovoltaic inverter is to cool the photovoltaic inverter by sucking in external air through an external fan and blowing it into an external heat sink. This heat dissipation method has a better heat dissipation effect when the external temperature is low, and the heat dissipation efficiency gradually decreases as the external temperature rises. Because it mainly relies on air convection to carry away heat to achieve heat dissipation, in the summer when the air temperature is high and the ambient temperature is high, the heat dissipation efficiency of the air cooling method is poor, causing the inverter temperature to rise quickly, resulting in a decrease in efficiency due to high temperature.

[0004] Based on this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an inverter heat dissipation device for auxiliary heat dissipation of the inverter. By reducing the air temperature at the fan suction port of the inverter radiator, the cooling efficiency of the original inverter heat dissipation device under high external temperature conditions is improved, thereby reducing the inverter temperature and improving the efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An inverter heat sink is installed around the fan suction port of the inverter radiator; the auxiliary heat sink comprises a body, a refrigeration unit, a heat dissipation unit and a power supply unit; wherein the refrigeration unit is arranged on one side inside the body and communicated with the outside, and is at least used to reduce the air temperature around the fan suction port of the inverter radiator; the heat dissipation unit is arranged on the other side inside the body and communicated with the outside, and is at least used to dissipate heat and cool the auxiliary heat sink itself; the power supply unit is arranged outside the body, and is at least used to supply power to the refrigeration unit and the heat dissipation unit in the auxiliary heat sink.

[0008] In order to further quickly reduce the air temperature at the fan suction port of the inverter radiator, the present invention provides a preferred solution, wherein the refrigeration unit includes a refrigeration fin and a refrigeration fan; the refrigeration fan is located between the refrigeration fin and the fan suction port of the inverter radiator; the refrigeration fin reduces the air temperature around it, and the refrigeration fan delivers the air with the reduced temperature around the refrigeration fin into the fan suction port of the inverter radiator.

[0009] In order to reduce the temperature of the auxiliary heat dissipation device itself and ensure its normal operation, the present invention provides a preferred solution, wherein the heat dissipation unit includes a first heat dissipation unit; the first heat dissipation unit includes a metal heat sink, which is located on the rear side of the refrigeration unit and is used to transfer and disperse the heat generated by the refrigeration unit.

[0010] In order to further speed up the reduction of the temperature of the auxiliary heat dissipation device itself, the present invention provides a preferred solution, wherein the heat dissipation unit includes a second heat dissipation unit; the second heat dissipation unit includes a heat dissipation fan located on the rear side of the metal heat sink for taking away the heat from the metal heat sink.

[0011] In order to achieve rapid cooling of the air at the fan suction port of the inverter radiator, the heat dissipation unit includes a third heat dissipation unit; the third heat dissipation unit includes a blower fan, which is arranged beside the refrigeration unit, the first heat dissipation unit and the second heat dissipation unit, and is used to accelerate the flow of air around the refrigeration unit, the first heat dissipation unit and the second heat dissipation unit.

[0012] In view of the fact that inverters are often set up in the open air, for energy-saving considerations, the present invention provides a preferred solution, wherein the power supply unit includes solar panels, which are distributed outside the body and are used to convert light energy into electrical energy to provide a DC voltage for the auxiliary heat dissipation device; a voltage stabilizer, which is used to stabilize the unstable DC voltage generated by the solar panels and output a stable voltage.

[0013] Compared with the prior art, the above technical solution has the following advantages:

[0014] (1) The inverter heat sink (also called inverter auxiliary heat sink) of the present invention improves the cooling efficiency of the original inverter heat sink under high external temperature conditions by lowering the air temperature at the inverter heat sink fan inlet, thereby reducing the inverter temperature, improving the efficiency, and operating independently without affecting the original inverter.

[0015] (2) The inverter heat dissipation device of the present invention does not damage the original inverter heat dissipation device. Even if the device fails, it does not affect the heat dissipation efficiency of the original inverter, thereby reducing the risk of equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 The distribution and principle diagram of each unit of the inverter heat dissipation device in Embodiment 1 of the present invention;

[0018] Figure 2 This is a distribution diagram of components of the inverter heat dissipation device in the body of the embodiment 1 of the present invention;

[0019] Figure 3 The distribution and principle diagram of each unit of the inverter heat dissipation device of embodiment 2 of the present invention;

[0020] Figure 4 This is a distribution diagram of components in the inverter heat dissipation device of Embodiment 2 of the present invention;

[0021] Figure 5 The distribution and principle diagram of each unit of the inverter heat dissipation device in embodiment 3 of the present invention;

[0022] Figure 6 This is a distribution diagram of components of the inverter heat dissipation device in the body of Example 3 of the present invention.

[0023] The figure numbers are as follows: inverter radiator fan suction port 000, power supply unit 100, solar panel 110, voltage stabilizer 120, switch 130, refrigeration unit 200, refrigeration plate 210, first ceramic refrigeration plate 211, second ceramic refrigeration plate 212, third ceramic refrigeration plate 213, cooling fan 220, first cooling fan 221, second cooling fan 222, third cooling fan 223, heat dissipation unit 300, first heat dissipation unit 310, metal heat dissipation plate 311, second heat dissipation unit 320, first cooling fan 321, second cooling fan 322, third cooling fan 323, third heat dissipation unit 330, first blowing fan 331, second blowing fan 332, thermal insulation layer 400, body 500. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please refer to Figure 1 and Figure 2 The present embodiment provides an inverter heat dissipation device, which is an independent heat dissipation device installed around the inverter radiator fan suction port 000, that is, at the radiator fan suction port. The auxiliary heat dissipation device of the present embodiment is mainly composed of a body 500, a refrigeration unit 200, a heat dissipation unit 300 and a power supply unit 100. Among them, the refrigeration unit 200 can use a refrigeration plate 210, which is arranged on one side of the body 500 and connected to the outside, and reduces the air temperature around the inverter radiator fan suction port 000 through refrigeration. The heat dissipation unit 300 can use a fan, which is arranged on the other side of the body 500 and connected to the outside, and can dissipate heat and cool down the auxiliary heat dissipation device itself, because the refrigeration unit 200 will generate heat during the refrigeration process. On the one hand, it is to prevent the heat generated by the auxiliary heat dissipation device itself from affecting the heat dissipation of the inverter, and on the other hand, it is also to ensure that the auxiliary heat dissipation device can operate normally. The power supply unit 100 is arranged outside the body 500, and mainly supplies power to the refrigeration unit 200 and the heat dissipation unit 300 in the auxiliary heat dissipation device. The power supply unit 100 of this embodiment can be connected to an external power supply, or an energy storage battery can be added. The power supply unit 100 is an independent power supply and does not interfere with the inverter. Even if the auxiliary heat dissipation device fails, it will not affect the operation of the original inverter. The inverter heat dissipation device of this embodiment can achieve the following beneficial technical effects: The inverter heat dissipation device of this embodiment improves the cooling efficiency of the original inverter heat dissipation device under high external temperature conditions by reducing the air temperature at the inverter radiator fan inlet 000, thereby reducing the inverter temperature and improving the efficiency. The inverter heat dissipation device of this embodiment does not damage the original inverter heat dissipation device. Even if the device fails, it does not affect the heat dissipation efficiency of the original inverter, thereby reducing the risk of equipment damage.

[0027] Example 2

[0028] Please refer to Figure 3 and Figure 4 Based on Example 1, this embodiment provides a preferred implementation and gives specific solutions of the refrigeration unit 200 and the heat dissipation unit 300:

[0029] The refrigeration unit 200 of this embodiment mainly adopts two combinations of refrigeration fins 210 and refrigeration fans 220. The refrigeration fan 220 is located between the refrigeration fins 210 and the inverter radiator fan inlet 000; the refrigeration fins 210 reduce the air temperature around them, and the refrigeration fan 220 sends the air around the refrigeration fins 210 with reduced temperature into the inverter radiator fan inlet 000, so that the air temperature at the inverter radiator fan inlet 000 can be quickly reduced.

[0030] The heat dissipation unit 300 of this embodiment is mainly composed of three heat dissipation units 300, namely, a first heat dissipation unit 310, a second heat dissipation unit 320 and a third heat dissipation unit 330. The first heat dissipation unit 310 adopts a metal heat sink 311, which is located at the rear side of the refrigeration unit 200, and can transfer and disperse the heat generated by the operation of the refrigeration unit 200. Considering the cost, processing and lightweight, the metal heat sink 311 is preferably made of aluminum or aluminum alloy, and of course other forms such as steel, copper, etc. can also be used. The second heat dissipation unit 320 adopts a heat dissipation fan, which is located at the rear side of the metal heat sink 311. The fan can make the air around the metal heat sink 311 flow quickly, thereby quickly taking away the heat on the metal heat sink 311. The third heat dissipation unit 330 uses a blower fan, which can be symmetrically arranged with two, namely, a first blower fan 331 and a second blower fan 332, which are respectively arranged on both sides of the cooling fins 210, the metal heat sink 311 and the heat dissipation fan. By utilizing the large air volume of the blower fan itself, it can not only accelerate the flow of air around the cooling fins 210, the metal heat sink 311 and the heat dissipation fan, but also accelerate the flow of air around the inverter, further improving the heat dissipation effect of the auxiliary heat dissipation device itself and the inverter heat sink fan suction port 000. In addition, the power supply unit 100 supplies power to the cooling fan 220, the cooling fins 210, the metal heat sink 311, the heat dissipation fan and the blower fan.

[0031] This embodiment dissipates heat through a combination of a metal heat sink 311, a heat dissipation fan, and a blower fan, and utilizes a variety of heat dissipation forms, multi-dimensional, and layered heat dissipation to allow air to circulate quickly around the inverter radiator fan inlet 000 and in the auxiliary heat dissipation device, thereby improving the heat dissipation effect of the auxiliary heat dissipation device itself and further improving the auxiliary heat dissipation effect on the inverter.

[0032] Example 3

[0033] Please refer to Figure 5 and Figure 6 Based on Example 2, a more specific implementation is given, which provides the specific number and distribution of the cooling fins 210, the cooling fans 220, and the heat dissipation fans.

[0034] In this embodiment, three cooling fins 210 are provided, and ceramic cooling fins are used, namely, the first ceramic cooling fin 211, the second ceramic cooling fin 212 and the third ceramic cooling fin 213. Three cooling fans 220 are provided correspondingly, namely, the first cooling fan 221, the second cooling fan 222 and the third cooling fan 223, which are respectively located behind each cooling fin 210. Three heat dissipation fans are provided, namely, the first heat dissipation fan 321, the second heat dissipation fan 322 and the third heat dissipation fan 323, which are arranged in parallel on the rear side of the metal heat dissipation fin 311. The distribution of the above-mentioned cooling fins 210, cooling fans 220 and heat dissipation fans can be understood as that one cooling fin 210 corresponds to one cooling fan 220 and one heat dissipation fan, so that each cooling fin 210 can achieve a relatively good cooling effect. At the same time, it can also achieve a better heat dissipation effect of the auxiliary heat dissipation device itself.

[0035] In this embodiment, the power supply unit 100 adopts a solar power supply system, which is mainly composed of a solar panel 110, a voltage stabilizer 120 and a switch 130. The solar panel 110 is distributed outside the body 500 and is used to convert light energy into electrical energy to provide a DC voltage for the auxiliary heat dissipation device; the voltage stabilizer 120 is used to stabilize the unstable DC voltage generated by the solar panel 110 and output a stable voltage. The auxiliary heat dissipation device is also provided with a heat insulation layer 400, which is laid between the solar panel 110 and the body 500, and is used for heat insulation between the solar panel 110 and the body 500 to prevent the overheating of the body 500 from affecting the operation of various devices in the body 500. The inverter is often set in the open air, and in the high temperature environment in summer, it is often scorching sun. This embodiment adopts a solar power supply system to power the auxiliary heat dissipation device, which can make full use of solar energy and be environmentally friendly and energy-saving.

[0036] In addition, it should be noted that the innovation of the present invention lies in providing an auxiliary heat dissipation device for an inverter, and giving the relative position distribution of the main components / units inside the auxiliary heat dissipation device and between each component / unit, rather than the structure of each component itself or the structure of the auxiliary heat dissipation device itself.

[0037] In summary, through the above embodiments, the present invention can mainly achieve the following technical effects:

[0038] (1) The inverter heat sink of the present invention is installed outside the original heat sink and works independently, so it does not affect the normal operation of the original heat sink.

[0039] (2) The inverter heat sink of the present invention reduces the temperature of the air sucked in by the inverter heat sink fan, thereby helping to improve the cooling efficiency of the original heat sink;

[0040] (3) The inverter heat dissipation device of the present invention works independently of the original heat dissipation device. Even if a fault occurs and the device stops working, the heat dissipation efficiency of the original heat dissipation device is not affected.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An inverter heat dissipation device, characterized in that: Installed around the fan suction port of the inverter radiator; the auxiliary heat dissipation device includes a body, a refrigeration unit, a heat dissipation unit and a power supply unit; wherein, A refrigeration unit, which is arranged at one side of the interior of the machine body and communicated with the exterior, is used at least to reduce the air temperature around the fan suction port of the inverter radiator; A heat dissipation unit is arranged at the other side of the body and communicated with the outside, and is used at least to dissipate heat and cool the auxiliary heat dissipation device itself; The power supply unit is arranged outside the machine body and is used to supply power to the refrigeration unit and the heat dissipation unit in the auxiliary heat dissipation device at least.

2. The inverter heat dissipation device according to claim 1, characterized in that: The refrigeration unit includes a refrigeration fin and a refrigeration fan; the refrigeration fan is located between the refrigeration fin and the inverter radiator fan suction port; the refrigeration fin reduces the temperature of the air around it, and the refrigeration fan sends the air around the refrigeration fin with the reduced temperature into the inverter radiator fan suction port.

3. The inverter heat dissipation device according to claim 2, characterized in that: The cooling plate is a ceramic cooling plate, and a plurality of the cooling plates are provided, and a plurality of the cooling fans are provided correspondingly.

4. The inverter heat dissipation device according to claim 1, characterized in that: The heat dissipation unit comprises a first heat dissipation unit; the first heat dissipation unit comprises a metal heat sink, which is located at the rear side of the refrigeration unit and is used for transferring and dispersing the heat generated by the operation of the refrigeration unit.

5. The inverter heat dissipation device according to claim 4, characterized in that: The heat dissipation unit includes a second heat dissipation unit; the second heat dissipation unit includes a heat dissipation fan, which is located at the rear side of the metal heat dissipation fin and is used to take away the heat on the metal heat dissipation fin.

6. The inverter heat sink according to claim 5, characterized in that: The heat dissipation fans are provided in plurality and are distributed in parallel on the rear side of the metal heat sink.

7. The inverter heat sink according to claim 5, characterized in that: The heat dissipation unit includes a third heat dissipation unit; the third heat dissipation unit includes a blower fan, which is arranged beside the refrigeration unit, the first heat dissipation unit and the second heat dissipation unit to accelerate the flow of air around the refrigeration unit, the first heat dissipation unit and the second heat dissipation unit.

8. The inverter heat dissipation device according to claim 7, characterized in that: The blower fans are provided with two and are respectively located at two sides of the refrigeration unit and the heat dissipation unit.

9. The inverter heat sink according to claim 1, characterized in that: The power supply unit includes a solar cell panel, which is distributed outside the body and is used to convert light energy into electrical energy to provide a DC voltage for the auxiliary heat dissipation device; and a voltage stabilizer, which is used to stabilize the unstable DC voltage generated by the solar cell panel and output a stable voltage.

10. The inverter heat sink according to claim 9, characterized in that: The auxiliary heat dissipation device also includes: a heat insulation layer, which is located between the solar cell panel and the machine body and is used for heat insulation between the solar cell panel and the machine body.

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