CN211791294U - A heat dissipation structure of an energy storage inverter - Google Patents

Abstract

This utility model discloses a heat dissipation structure for an energy storage inverter, including a main cavity, a heat sink, a heat dissipation chamber, and a cooling fan. The heat dissipation chamber, cooling fan, and heat sink are fixedly disposed on the back of the main cavity, and are arranged sequentially from bottom to top. The heat-generating element of the energy storage inverter is disposed within the heat dissipation chamber. This utility model, by arranging the cooling fan, heat dissipation chamber, and heat sink sequentially from bottom to top, conforms to the upward flow direction of hot air, resulting in better heat dissipation. By placing the heat-generating element of the energy storage inverter within the heat dissipation chamber, the cooling fan can effectively dissipate the heat from the heat-generating element.

Description

A heat dissipation structure of an energy storage inverter

technical field

The utility model relates to a heat dissipation technology of an energy storage inverter, in particular to a heat dissipation structure of an energy storage inverter.

Background technique

The energy storage inverter is a small power electronic device and the core device of the household energy storage system. In order to meet the requirements of home users, the volume of inverters with the same power tends to be miniaturized, which puts forward higher requirements on the thermal design of the radiator.

At present, the cooling methods of inverters mainly include natural cooling, forced air cooling, liquid cooling, etc., among which natural cooling and forced air cooling are the main application forms. The heat dissipation effect of natural cooling and forced air cooling is mainly related to the heat dissipation area of the radiator, the wind resistance of the air cooling air duct, the air flow rate, and the flow rate. In the prior art, the patent CN201220301810.7 discloses an inverter heat dissipation structure, which includes a plate body, the plate body includes a first surface for setting the power module and facing the inside of the inverter, The first surface is opposite to the second surface facing the outside of the transformer, and the inverter heat dissipation structure further includes a first cavity disposed in the middle of the front section of the second surface and used for accommodating the transformer and respectively disposed in the At least one second cavity for accommodating inductors on opposite sides of the middle section of the second surface. This heat dissipation structure includes both natural cooling and forced air cooling, but the problem is that the area of the heat sink for natural cooling is small, and the "S"-shaped air duct leads to a large wind resistance and a slow air flow rate, which makes the heat dissipation effect poor.

Utility model content

The purpose of the utility model is to provide a heat dissipation structure of an energy storage inverter with better heat dissipation effect.

A brief summary of one or more aspects is presented below to provide a basic understanding of the aspects. This summary is not an exhaustive overview of all contemplated aspects and is neither intended to identify key or critical elements of all aspects nor attempt to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

According to an aspect of the present invention, a heat dissipation structure of an energy storage inverter is provided, comprising a main cavity, a radiator, a heat dissipation cavity and a heat dissipation fan, wherein the heat dissipation cavity, the heat dissipation fan and the heat sink are fixedly arranged on the On the back of the main cavity, the cooling fan, the cooling cavity and the radiator are arranged sequentially from bottom to top, and the heating element of the energy storage inverter is arranged in the cooling cavity.

In one embodiment, the heat sink of the heat dissipation structure includes ribs and a bottom plate, the bottom plate is attached to the back of the main cavity, the ribs are perpendicular to the bottom plate and are equidistant along the vertical direction. Set evenly.

In one embodiment, the thickness of the root portion of the fins of the heat dissipation structure is greater than the thickness of the end portion.

In one embodiment, the thickness of the base of the fins of the heat dissipation structure is 3 mm, and the thickness of the ends of the fins is 1.5 mm.

In one embodiment, the bottom plate of the heat dissipation structure is connected to the main cavity through thermally conductive adhesive.

In one embodiment, the area of the heat sink of the heat dissipation structure is not less than 1/2 of the area of the back surface of the main cavity.

In one embodiment, the material of the shell of the heat dissipation cavity of the heat dissipation structure is steel, aluminum, copper, copper-aluminum alloy or steel-aluminum alloy.

In one embodiment, the height of the heat dissipation cavity of the heat dissipation structure does not exceed 2/3 of the height of the heat dissipation fan.

In one embodiment, the heat dissipation structure further includes a mounting plate, and connecting portions are provided on both sides of the back of the main cavity, the connecting portions extend toward the heat sink, and the mounting plate is connected to the connecting portion. Removably attached.

In one embodiment, the mounting plate of the heat dissipation structure is I-shaped, and the mounting plate shields the heat dissipation cavity and the heat dissipation fan and exposes part of the heat sink.

The beneficial effects of the embodiments of the present invention are: the cooling fan, the cooling cavity and the radiator arranged in sequence from bottom to top conform to the rising flow direction of the hot air flow, and the heat dissipation effect is better. The element is arranged in the heat dissipation cavity, so that the heat dissipation fan can blow away the heat of the heating element in time.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings that need to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

The above-described features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale and components with similar related characteristics or features may have the same or similar reference numbers.

Fig. 1 is the bottom view of the utility model embodiment;

Fig. 2 is the rear view of the embodiment of the present utility model;

3 is a rear view of another embodiment of the present invention;

Fig. 4 is the three-dimensional structure schematic diagram of the embodiment of the present invention;

Wherein: 110 - main cavity; 120 - radiator; 121 - bottom plate; 122 - fins; 130 - cooling cavity; 140 - cooling fan; 150 - connecting part; 160 - mounting plate.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary, and should not be construed as any limitation to the protection scope of the present invention.

As shown in FIGS. 1 to 4 , the present invention discloses a heat dissipation structure of an energy storage inverter, including a main cavity 110 , a radiator 120 , a heat dissipation cavity 130 and a heat dissipation fan 140 , the heat dissipation cavity 130 , the heat dissipation fan 140 and the The radiator 120 is fixedly arranged on the back of the main cavity 110 , the cooling fan 140 , the cooling cavity 130 and the radiator 120 are arranged sequentially from bottom to top, and the heating elements of the energy storage inverter, such as inductors, are arranged in the cooling cavity within 130. The heat dissipation fan 140 , the heat dissipation cavity 130 and the radiator 120 are arranged in sequence from bottom to top, in line with the rising flow direction of the hot air, and the heat dissipation effect is better. By arranging the heating element of the energy storage inverter in the heat dissipation cavity 120 , so that the heat dissipation fan 140 can blow off the heat of the heating element in time.

Specifically, the radiator 120 includes ribs 122 and a bottom plate 121 , the bottom plate 121 is attached to the back of the main cavity 110 , and the ribs 122 are perpendicular to the bottom plate 121 and are evenly arranged at equal distances in the vertical direction. The fins 122 not only serve as heat dissipation surfaces, but also function as air ducts. Compared with the "S"-shaped air ducts in the prior art, the straight-line air ducts have smaller wind resistance.

Preferably, the thickness of the root portion of the fins 122 is greater than the thickness of the end portions, so as to increase the contact area between the fins 122 and the air. In this embodiment, the thickness of the root of the rib 122 is 3 mm, and the thickness of the end of the rib 122 is 1.5 mm.

In order to ensure a good heat dissipation effect, the bottom plate 121 of the heat sink 120 is connected to the main cavity 110 through thermal conductive glue. The area of the heat sink 120 is not less than 1/2 of the area of the back surface of the main cavity 110 .

The heat dissipation cavity 130 and the main cavity 110 may be fixedly connected by welding or the like, or may be integrally formed. The shell material of the heat dissipation cavity 130 is steel, aluminum, copper, copper-aluminum alloy or steel-aluminum alloy, so as to ensure that the heat in the heat dissipation cavity 130 can be better dissipated. Through this split-cavity arrangement, the components most susceptible to temperature effects in the inverter, such as sensors and electrolytic capacitors, are separated from the heating components, and the heating components are air-cooled to achieve better heat dissipation.

It should be noted that the height of the heat dissipation cavity 130 should not exceed 2/3 of the height of the heat dissipation fan 140 , so that part of the wind force of the heat dissipation fan 140 can flow into the radiator 120 through the heat dissipation cavity 130 .

In addition, in order to protect components such as the radiator 120 and the cooling fan 140 , the heat dissipation structure further includes a mounting plate 160 , and connecting portions 150 are provided on both sides of the back of the main cavity 110 , and the connecting portions 150 extend toward the direction of the heat sink 120 . It is detachably connected to the connecting portion 150. For example, in this embodiment, the mounting plate 160 is connected to the main cavity 110 through the hanging hole. During installation, the mounting plate 160 is firstly fixed on the wall, and the mounting plate 160 is nailed with a pin. Then hang the main cavity 110 on the mounting plate.

Preferably, the mounting plate 160 may be an I-shaped, which shields the heat dissipation cavity 130 and the heat dissipation fan 140 and exposes part of the radiator 120 , so that the radiator 120 can be in maximum contact with the air while protecting the components.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The previous description of the present disclosure is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above descriptions are only preferred examples of this application, and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection of this application. within the range.

Claims (10)

1. A heat dissipation structure of an energy storage inverter, characterized in that: it comprises a main cavity, a radiator, a heat dissipation cavity and a heat dissipation fan, and the heat dissipation cavity, the heat dissipation fan and the heat sink are fixedly arranged on the side of the main cavity. On the back, the cooling fan, the cooling cavity and the radiator are arranged sequentially from bottom to top, and the heating element of the energy storage inverter is arranged in the cooling cavity. 2 . The heat dissipation structure of an energy storage inverter according to claim 1 , wherein the heat sink comprises fins and a bottom plate, the bottom plate is attached to the back of the main cavity, and the fins They are evenly arranged at equal distances along the vertical direction perpendicular to the bottom plate. 3 . The heat dissipation structure of the energy storage inverter according to claim 2 , wherein the thickness of the root portion of the rib is greater than the thickness of the end portion. 4 . 4 . The heat dissipation structure of the energy storage inverter according to claim 3 , wherein the thickness of the root of the fin is 3 mm, and the thickness of the end of the fin is 1.5 mm. 5 . 5 . The heat dissipation structure of an energy storage inverter according to claim 2 , wherein the bottom plate is connected to the main cavity through a thermally conductive adhesive. 6 . 6 . The heat dissipation structure of the energy storage inverter according to claim 2 , wherein the area of the heat sink is not less than 1/2 of the area of the back surface of the main cavity. 7 . 7 . The heat dissipation structure of the energy storage inverter according to claim 1 , wherein the shell material of the heat dissipation cavity is steel, aluminum, copper, copper-aluminum alloy or steel-aluminum alloy. 8 . 8 . The heat dissipation structure of the energy storage inverter according to claim 1 , wherein the height of the heat dissipation cavity does not exceed 2/3 of the height of the heat dissipation fan. 9 . 9 . The heat dissipation structure of the energy storage inverter according to claim 1 , further comprising a mounting plate, connecting parts are provided on both sides of the back of the main cavity, and the connecting parts are directed to the heat sink. 10 . extending in the direction, the mounting plate is detachably connected with the connecting portion. 10 . The heat dissipation structure of the energy storage inverter according to claim 9 , wherein the mounting plate is I-shaped, and the mounting plate covers the heat dissipation cavity and the heat dissipation fan and exposes part of the heat sink. 11 .

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