CN219478396U

CN219478396U - High-efficient heat dissipation dc-to-ac converter

Info

Publication number: CN219478396U
Application number: CN202223449677.2U
Authority: CN
Inventors: 胡振亮; 何华燕; 戴婧
Original assignee: Shenzhen Taidewei Electronic Technology Co ltd
Current assignee: Shenzhen Taidewei Electronic Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-08-04
Anticipated expiration: 2032-12-22

Abstract

The application discloses high-efficient heat dissipation dc-to-ac converter, its characterized in that includes inverter circuit subassembly, is used for installing inverter circuit subassembly's casing subassembly, and casing subassembly includes interconnect's last casing and lower casing, and upper casing and lower casing set up to rectangular structure respectively, and inverter circuit subassembly installs in last casing; a heat dissipation component for dissipating heat is arranged in the lower shell; the heat dissipation assembly comprises a plurality of first fans arranged on one side surface of the lower shell, and a plurality of heat dissipation holes are uniformly formed in the other side surface of the lower shell, which is symmetrical to the fans; a plurality of radiating fins are uniformly distributed in the lower shell, a radiating air channel is formed between two adjacent radiating fins, and the radiating air channel is distributed along the blowing direction of the fan; the heat-conducting plate is attached to the bottom of the upper shell; the bottom of the upper shell is also provided with a plurality of vent holes communicated with the lower shell, and a second fan is arranged in any vent hole. The technical scheme of the application solves the problem of low efficiency of the existing inverter.

Description

High-efficient heat dissipation dc-to-ac converter

Technical Field

The application relates to the technical field of inverters, in particular to a high-efficiency heat dissipation inverter.

Background

The inverter is a converter for converting direct-current electric energy (a battery and an accumulator jar) into constant-frequency constant-voltage or frequency-modulated voltage-modulated alternating current (generally 220V,50Hz sine wave). The inverter comprises an inverter bridge, control logic and a filter circuit. The device is widely applicable to air conditioners, home theatres, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, smoke exhaust hoods, refrigerators, video recorders, massagers, fans, illumination and the like. The inverter can be used for connecting the storage battery to drive electric appliances and various tools to work when the automobile is out or traveling at home and abroad due to higher popularization rate of the automobile. Along with the popularization of the inverter, the power of the inverter is also larger and larger, a large amount of heat can be generated when the inverter works for a long time, the existing inverter generally adopts a cooling fan to cool the interior of the inverter by blowing air, however, the air blowing process of the fan can blow external dust into the interior of the inverter, the dust falls on internal electronic components, the electronic components are easy to damage, the use of the inverter is affected, and the cooling efficiency of the inverter is also affected by the butt joint of a large amount of dust.

Disclosure of Invention

The application provides a high-efficient heat dissipation dc-to-ac converter, solves the problem that current dc-to-ac converter inefficiency.

The embodiment of the application provides a high-efficiency heat dissipation inverter, which comprises an inverter circuit assembly and a shell assembly for installing the inverter circuit assembly, wherein the shell assembly comprises an upper shell and a lower shell which are mutually connected, the upper shell and the lower shell are respectively arranged into a rectangular structure, and the inverter circuit assembly is installed in the upper shell; a heat dissipation assembly for dissipating heat is arranged in the lower shell;

the heat dissipation assembly comprises a plurality of first fans arranged on one side surface of the lower shell, a plurality of heat dissipation holes are uniformly formed in the other side surface of the lower shell, which is symmetrical to the fans, and the blowing direction of the first fans is set to blow from the outer part of the lower shell to the inner part of the lower shell; a plurality of radiating fins are uniformly distributed in the lower shell, a radiating air channel is formed between two adjacent radiating fins, and the radiating air channel is distributed along the blowing direction of the fan; the heat dissipation fins are fixed on a heat conduction plate, and the heat conduction plate is attached to the bottom of the upper shell; the bottom of the upper shell is also provided with a plurality of vent holes communicated with the lower shell, a second fan is arranged in any vent hole, and the blowing direction of the second fan is set to blow into the lower shell from the inside of the upper shell.

In some embodiments, the first fan and the second fan are respectively provided in two.

In some embodiments, the heat dissipating holes are provided as bar-shaped holes.

In some embodiments, the heat conducting plate is locked to the lower housing by screws.

In some embodiments, the lower housing is provided as an aluminum alloy integrally formed structure.

Compared with the prior art, the beneficial effects of this application are: the structural layout of the existing inverter is improved, the shell assembly is divided into an upper shell and a lower shell which are mutually spliced, the inverter circuit assembly is arranged in the upper shell, the heat dissipation assembly is arranged in the lower shell to dissipate heat of the inverter circuit assembly in the upper shell, external dust is prevented from falling into the inverter circuit assembly, heat dissipation efficiency is improved, and the service life of the inverter is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from the structures shown in these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 is a schematic diagram of the overall structure of an inverter according to the present application;

FIG. 2 is a schematic view of the mounting structure of the upper and lower housings of the present application;

fig. 3 is a schematic view of a mounting structure between a lower housing and a heat sink fin in the present application;

the realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1, the housing assembly includes an upper housing 1 and a lower housing 2 that are connected to each other, the upper housing 1 and the lower housing 2 are respectively configured as rectangular structures, and the inverter circuit assembly is installed in the upper housing 1; a heat radiation component for radiating heat is arranged in the lower shell 2;

referring to fig. 2 and 3, the heat dissipation assembly includes a plurality of first fans 3 mounted on one side of the lower housing 2, and a plurality of heat dissipation holes 4 are uniformly formed on the other side of the lower housing 2 symmetrical to the fans, and the blowing direction of the first fans 3 is set to blow from the outside of the lower housing 2 to the inside of the lower housing 2; a plurality of heat radiation fins 5 are uniformly distributed in the lower shell 2, a heat radiation air duct 6 is formed between two adjacent heat radiation fins 5, and the heat radiation air duct 6 is distributed along the blowing direction of the fan; the heat dissipation fins 5 are fixed on a heat conduction plate 7, and the heat conduction plate 7 is attached to the bottom of the upper shell 1; the bottom of the upper shell 1 is also provided with a plurality of vent holes 8 communicated with the lower shell 2, a second fan 9 is arranged in any vent hole 8, and the blowing direction of the second fan 9 is set to blow into the lower shell 2 from the upper shell 1.

It should be noted that, this embodiment has improved the structural layout of current dc-to-ac converter, divide into the casing subassembly and splice each other upper casing 1 and lower casing 2, and inverter circuit subassembly is installed in upper casing 1, and installs the heat dissipation subassembly in the lower casing 2 and dispel the heat to the inverter circuit subassembly in the upper casing 1, prevents that outside dust from falling into in the inverter circuit subassembly, promotes radiating efficiency, guarantees the life of dc-to-ac converter.

Specifically, in the embodiment, heat generated by the operation of the inverter circuit assembly in the upper housing 1 is firstly transferred to the heat dissipation fins 5 in the lower housing 2 through the heat conducting plate 7, and the first fan 3 passes external cold air into and out of the lower housing 2, cools the heat dissipation fins 5 through the heat dissipation air duct 6, and then blows air in the lower housing 2 out of the heat dissipation holes 4 to accelerate air flow and heat dissipation; secondly, vent hole 8 has been seted up to last casing 1 bottom, and second fan 9 can also blow in lower casing 2 with the heat in the last casing 1, takes away by the air that the below flows, realizes dual heat dissipation, has further accelerated radiating efficiency. Meanwhile, when the first fan 3 blows external cool air into the lower housing 2, external dust may be carried in, but because the inverter circuit components are all installed in the upper housing 1, and under the combined action of the second fan 9, the dust can be taken away by the air flow in the lower housing 2 or falls in the lower housing 2, and cannot enter the upper housing 1 to affect the normal use of the inverter circuit components. It should be noted that, in this embodiment, the structural layout of the inverter is improved, and the working principle and the start control principle of the fan are the conventional inverter common technologies, which are not described herein.

Further, the number of the first fans 3 and the second fans 9 is two, so that uniform flow of air flow is ensured, and heat dissipation is accelerated.

Further, the heat dissipation holes 4 are bar-shaped holes, so that air can flow quickly, and heat dissipation is quickened.

Further, the heat conducting plate 7 is locked on the lower shell 2 through screws, so that the heat conducting plate 7 is convenient to detach, dust can be abutted in the heat radiating air duct 6 between the heat radiating fins 5 after the heat conducting plate is used for a period of time, heat radiation is affected, and the heat conducting plate 7 can be conveniently taken down through screw installation to clean at regular time, and meanwhile, the heat conducting plate is convenient to install.

Further, the lower shell 2 is of an aluminum alloy integrated structure, and the aluminum alloy has a good heat conduction effect, so that the heat dissipation efficiency can be further improved.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims

1. The high-efficiency heat dissipation inverter is characterized by comprising an inverter circuit assembly and a shell assembly for installing the inverter circuit assembly, wherein the shell assembly comprises an upper shell and a lower shell which are mutually connected, the upper shell and the lower shell are respectively arranged into a rectangular structure, and the inverter circuit assembly is installed in the upper shell; a heat dissipation assembly for dissipating heat is arranged in the lower shell;

2. The high efficiency heat dissipating inverter of claim 1, wherein the first fan and the second fan are provided in two, respectively.

3. The high efficiency heat dissipating inverter of claim 1, wherein the heat dissipating holes are provided as bar shaped holes.

4. The high efficiency heat dissipating inverter of claim 1, wherein the thermally conductive plate is screwed to the lower housing.

5. The high efficiency heat dissipating inverter of claim 1, wherein the lower housing is provided as an aluminum alloy integrally molded structure.