CN217362883U - High-efficient heat dissipation converter - Google Patents

Abstract

The utility model discloses a high-efficient heat dissipation converter, including heating element, PCB board and converter casing, heating element installs on the PCB board, still includes profile of tooth radiator, aluminium base board radiator and heat conduction gasket, converter casing fixedly connected with profile of tooth radiator it has square mounting hole to open on the converter casing, and aluminium base board radiator is installed in square mounting hole, and the outside at the converter casing is installed to the PCB board, is equipped with heat conduction gasket between heating element and aluminium base board radiator, and heat conduction gasket and aluminium base board radiator are all spacing all around through the converter casing. The utility model discloses small, power density is big, the cost of manufacture is low, and the radiating efficiency is good simultaneously, has solved the problem that the converter operation generates heat, has improved the stability of complete machine operation process.

Description

A high-efficiency heat-dissipating inverter

technical field

The utility model belongs to the technical field of frequency converters, in particular to an efficient heat dissipation frequency converter.

Background technique

The capacitors and radiators inside the existing inverter occupy a large space inside the plastic casing, and the power units inside the inverter, such as rectifier bridges, IGBTs, relays, etc., will generate a lot of heat when working, resulting in The temperature inside the case is high. At the same time, the capacitor will also generate heat during operation, but the life of the capacitor is greatly affected by the temperature. In such a working environment, the life of the capacitor will be greatly shortened, causing the whole machine to fail.

SMD installation has the deficiency of poor heat dissipation effect, so that the heat generated by the SMD parts cannot be effectively dissipated, so that the service life of the SMD parts will be shortened when they are used on the inverter.

Therefore, the inverter is relatively large in size and high in cost. Under the premise of ensuring performance, how to make the inverter as small as possible, power density as large as possible, and cost as low as possible is a difficult problem that the industry needs to overcome.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a high-efficiency heat-dissipating frequency converter to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a high-efficiency heat dissipation frequency converter, comprising a heating element, a PCB board and a frequency converter housing, the heating element is mounted on the PCB board, and also includes a toothed radiator, an aluminum A base plate heat sink and a heat-conducting gasket, the inverter housing is fixedly connected with a toothed heat sink, a square mounting hole is opened on the inverter housing, and the aluminum base plate heat sink is installed in the square mounting hole, so The PCB board is installed on the outside of the inverter housing, and a thermally conductive gasket is arranged between the heating element and the aluminum substrate radiator, and both the thermally conductive gasket and the aluminum substrate radiator are limited by the inverter housing. The heat generated by the heating elements on the surface of the PCB board is transferred to the aluminum substrate radiator through the thermal pad, and then the heat is transferred to the toothed radiator through the aluminum substrate radiator, thereby improving the heat dissipation speed.

Preferably, the thermally conductive pad is a thermally conductive silicone pad, which is filled between the heating element and the heat sink of the aluminum substrate. In addition to the role of interface heat transfer, it can also play the role of insulation, shock absorption and tolerance, and tolerance absorption.

Preferably, a fan is provided at the air outlet of the toothed radiator.

Preferably, the inverter housing and the toothed heat sink are fastened by screws.

Technical effects and advantages of the present utility model:

1. The device separates the PCB board and the radiator through the inverter housing to form an independent air duct.

2. The surface area of the thermal pad is larger than that of the aluminum substrate heat sink, which solves the problem of small heat dissipation area and slow heat dissipation speed of the PCB board, and improves the heat dissipation efficiency.

3. The heat generated by the heating element on the surface of the PCB board is transferred to the aluminum substrate radiator and the toothed radiator through the thermally conductive silicone pad, which greatly improves the heat dissipation capacity. It can also play the role of insulation, shock absorption, and tolerance absorption.

4. By setting a fan at the air outlet of the toothed radiator, the heat dissipation efficiency can be effectively improved, thereby completely solving the problem of heating of the inverter and improving the stability of the whole machine.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the picture: 1 screw, 2PCB board, 3 heating element, 4 thermal pad, 5 aluminum base plate radiator, 6 inverter housing, 8 tooth radiator.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Figure 1 shows a specific implementation of a high-efficiency heat-dissipating frequency converter of the present invention: it includes a heating element 3, a PCB board 2 and an inverter housing 6, the heating element 3 is welded on the PCB board 2, and the heating element 3 is welded on the PCB board 2. Including a toothed radiator 8, an aluminum substrate heatsink 5 and a thermally conductive silicone pad, the inverter housing 6 is fixedly connected with a toothed heatsink 8 through screws 1, and a fan is provided at the air outlet of the toothed heatsink 8 , to effectively improve the heat dissipation efficiency, a square mounting hole is opened on the inverter housing 6, the aluminum substrate heat sink 5 is installed in the square mounting hole, and the PCB board 2 is installed on the outside of the inverter housing 6, A thermally conductive silicone pad is arranged between the heating element 3 and the aluminum substrate radiator 5. Both the thermally conductive silicone pad and the aluminum substrate radiator 5 are limited around the inverter housing 6, and the PCB board 2 is separated by the thermally conductive silicone pad. The heat generated by the heating element 3 on the surface is transmitted to the aluminum substrate radiator 5, and then passes through the aluminum substrate radiator 5, and then transfers the heat to the toothed radiator 8 through the aluminum substrate radiator 5, thereby improving its heat dissipation speed. ; Among them, the thermal conductive silicone pad is filled between the heating element 3 and the aluminum substrate radiator 5. In addition to the role of interface heat transfer, it can also play the role of insulation, shock absorption, and tolerance absorption.

The inverter is small in size, high in power density, low in production cost, and has good heat dissipation efficiency, which solves the problem of heating during operation of the inverter and improves the stability of the whole machine operation process.

The applicant also declares that the present utility model will illustrate the implementation method and device structure of the present utility model through the above-mentioned embodiments, but the present utility model is not limited to the above-mentioned embodiments, that is, it does not mean that the present utility model must rely on the above-mentioned method and structure. to be implemented. Those skilled in the art should understand that any improvement to the present invention, the equivalent replacement of the implementation method selected by the present invention, the addition of steps, the selection of specific methods, etc., all fall within the scope of protection and disclosure of the present invention. within.

The present invention is not limited to the above-mentioned embodiments, and all ways of realizing the purpose of the present invention by adopting structures and methods similar to those of the present invention are within the protection scope of the present invention.

Claims (4)

1. a high-efficiency heat-dissipating frequency converter, comprising a heating element (3), a PCB board (2) and a frequency converter housing (6), and the heating element (3) is mounted on the PCB board (2), characterized in that: It also includes a toothed radiator (8), an aluminum substrate heatsink (5) and a heat-conducting gasket (4), the inverter housing (6) is fixedly connected with the toothed radiator (8), The housing (6) is provided with a square mounting hole, the aluminum substrate heat sink (5) is mounted in the square mounting hole, the PCB board (2) is mounted on the outside of the inverter housing (6), and the A heat-conducting gasket (4) is arranged between the heating element (3) and the aluminum substrate heat sink (5). 2. The high-efficiency heat-dissipating frequency converter according to claim 1, characterized in that: the thermally conductive gasket (4) is a thermally conductive silicone pad, which is filled between the heating element (3) and the aluminum substrate radiator (5). 3. The high-efficiency heat dissipation frequency converter according to claim 1, wherein a fan is provided at the air outlet of the toothed radiator (8). 4. The high-efficiency heat-dissipating inverter according to claim 1, characterized in that: the inverter housing (6) and the toothed radiator (8) are fastened by screws (1).

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