CN220586677U

CN220586677U - Low-power inverter

Info

Publication number: CN220586677U
Application number: CN202321453165.5U
Authority: CN
Inventors: 田明选; 何丹; 马元晖; 胡丽霞
Original assignee: Zhengzhou Datou Hardware Products Co ltd
Current assignee: Zhengzhou Datou Hardware Products Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-03-12
Anticipated expiration: 2033-06-08

Abstract

The utility model relates to the technical field of inverters, in particular to a low-power inverter. The cooling fan comprises a shell, wherein a first radiating hole is formed in one end side wall of the shell, a cooling fan and cooling fins are fixedly arranged at one end, close to the first radiating hole, of the shell, a PCB (printed circuit board) is fixedly arranged in the shell, an electric element and a main control MCU (micro control unit) are arranged on the PCB, the cooling fins are in contact with the PCB, a temperature sensor and an electric control switch are further arranged on the PCB, the temperature sensor and the electric control switch are electrically connected with the main control MCU, and the electric control switch is electrically connected with the cooling fan. According to the utility model, the temperature sensor is arranged to detect the temperature in the inverter, and the cooling fan is turned on when the temperature reaches the specified range, so that the energy consumption of the inverter is reduced.

Description

Low-power inverter

Technical Field

The utility model relates to the technical field of inverters, in particular to a low-power 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-modulation voltage-regulation alternating current. 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. The on-board inverter output by the cigar lighter is 20W, 40W, 80W, 120W to 150W power specification. And the larger power inverter power supply is connected to the storage battery through a connecting wire. The household appliances can be connected to the output end of the power converter to use various appliances in the automobile.

The inverter can generate a large amount of heat in the working process, so that the inverter needs to be radiated, the existing inverter generally adopts a mode of combining radiating fins with a radiating fan, but the heat is not large in a period of time when the inverter just begins to work, and the radiating effect can be achieved only by the radiating fins, and the existing inverter adopts a mode of combining the radiating fins from the beginning, so that the energy consumption is high.

Disclosure of Invention

The utility model aims to provide a low-power inverter, which is used for detecting the temperature inside the inverter by arranging a temperature sensor, and when the temperature reaches a specified range, a cooling fan is turned on, so that the energy consumption of the inverter is reduced.

The above object of the present utility model is achieved by the following technical solutions:

the utility model provides a low-power consumption dc-to-ac converter, includes the casing, first louvre has been seted up on the one end lateral wall of casing, the inside one end that is close to first louvre of casing is fixed to be provided with radiator fan and radiator fin, radiator fan is closer to first louvre, the inside fixed PCB circuit board that is provided with of casing, install electrical components and master control MCU on the PCB circuit board, radiator fin and PCB circuit board contact, still be provided with temperature sensor and electric control switch on the PCB circuit board, temperature sensor and electric control switch all with master control MCU electric connection, electric control switch and radiator fan electric connection.

Preferably, the shell and the first radiating holes are symmetrically provided with second radiating holes on four adjacent side walls, and the second radiating holes are positioned close to the radiating fins.

Preferably, the inside fixed filter screen that is provided with of casing, the filter screen is whole to be U type frame structure, each lateral wall of filter screen is attached on the inside wall that the shell offered louvre one and louvre two.

Preferably, the side wall of the shell provided with the first heat dissipation hole is provided with a detachable rear cover, and the filter screen is fixedly connected to the rear cover through a screw.

Preferably, the rear cover edge is integrally provided with a mounting plate, and the rear cover is fixed on the shell through the combination of the mounting plate and the screw.

In summary, the beneficial technical effects of the utility model are as follows:

1. through setting up temperature sensor and automatically controlled switch, can select whether to open radiator fan according to the inside temperature of the dc-to-ac converter of temperature sensor feedback to reach the purpose that reduces the energy consumption.

2. Through setting up the filter screen of U type frame structure, can filter every louvre, set up detachable back lid and filter screen simultaneously, conveniently change the filter screen.

Drawings

In order to more clearly illustrate the embodiments of the utility model 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, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present utility model;

fig. 2 is a schematic view of the internal structure of the housing.

In the figure, 1, a shell; 2. a PCB circuit board; 21. a master control MCU; 22. a temperature sensor; 23. an electric control switch; 3. a heat radiation fin; 4. a heat radiation fan; 5. a first heat dissipation hole; 6. a second heat dissipation hole; 7. a rear cover; 8. and (5) a filter screen.

Description of the embodiments

The present utility model will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the low power inverter disclosed by the utility model comprises a housing 1, wherein a PCB circuit board 2 is fixedly arranged in the housing 1, a heat radiation fin 3 is arranged in contact with the PCB circuit board 2, a heat radiation fan 4 is arranged at one end of the heat radiation fin 3 far away from the PCB circuit board 2, the heat radiation fan 4 is fixed on the inner side wall of the housing 1, and the heat radiation fin 3 is fixedly connected on the heat radiation fan 4. A first radiating hole 5 is formed in the side wall of the shell 1, which is close to the air outlet of the radiating fan 4, and a rear cover 7 is arranged on the side wall of the shell 1, which is provided with the first radiating hole 5. The heat generated by the inverter operation can be discharged from the shell 1 through the first heat radiating holes 5 through the heat radiating fan 4 and the heat radiating fins 3, so as to achieve the effect of reducing the internal temperature of the shell 1.

An electrical element and a main control MCU21 are mounted on the PCB 2. The PCB 2 is also provided with a temperature sensor 22 and an electric control switch 23, the temperature sensor 22 and the electric control switch 23 are electrically connected with the main control MCU21, and the temperature sensor 22 is used for detecting the temperature inside the shell 1. The electric control switch 23 is electrically connected with the cooling fan 4, and the on-off of the cooling fan 4 can be controlled through the electric control switch 23. When the inverter works, the temperature inside the shell 1 is relatively low at the beginning, and the heat inside the shell 1 can be discharged through the first heat radiating holes 5 by the heat radiating fins 3; when the temperature sensor 22 detects that the temperature inside the shell 1 rises to a specified range, the main control MCU21 controls the electric control switch 23 to be closed, and the cooling fan 4 starts to work, at the moment, the cooling efficiency is improved together through the cooling fan 4 and the cooling fins 3, when the temperature sensor 22 detects that the temperature inside the shell 1 falls to a proper range, the main control MCU21 controls the electric control switch 23 to be opened, the cooling fan 4 stops working, and only the cooling fins 3 are relied on to perform heat dissipation, so that the effect of reducing energy consumption is achieved compared with the effect of always working of the cooling fan 4. In addition, the four side walls of the shell 1 adjacent to the first radiating holes 5 are symmetrically provided with second radiating holes 6, and the second radiating holes 6 are positioned close to the radiating fins 3. By arranging the second radiating holes 6, the radiating effect of the radiating fins 3 is better when the radiating fan 4 does not work.

The inside of the shell 1 is fixedly provided with a filter screen 8, and the whole filter screen 8 is of a U-shaped frame structure. Each side wall of the filter screen 8 is attached to the inner side wall of the shell 1 provided with the first radiating hole 5 and the second radiating hole 6, and the filter screen 8 is fixedly connected to the rear cover 7 through screws. By providing the filter screen 8, particulate matters such as dust in the air can be filtered out.

The side wall of the shell 1 provided with the first radiating hole 5 is provided with a detachable rear cover 7. The edge of the rear cover 7 is integrally provided with a mounting plate, and the rear cover 7 is fixed on the shell 1 through the combination of the mounting plate and a screw. When the filter screen 8 is used for a long time, dust can be accumulated on the rear surface, heat dissipation is affected, and the filter screen 8 is conveniently replaced by opening the rear cover 7.

It is apparent that the above examples are merely illustrative of the present utility model and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While remaining within the scope of the utility model, obvious variations or modifications are incorporated by reference herein.

Claims

1. The utility model provides a low-power consumption dc-to-ac converter, includes casing (1), louvre one (5) have been seted up on the one end lateral wall of casing (1), the inside one end that is close to louvre one (5) of casing (1) is fixed to be provided with radiator fan (4) and radiator fin (3), radiator fan (4) are closer to louvre one (5), its characterized in that: the utility model discloses a heat radiation device, including casing (1), main control MCU (21), heat radiation fin (3), main control MCU (4), electric control MCU (21) are fixed in casing (1), install electrical components and main control MCU (21) on PCB circuit board (2), heat radiation fin (3) are contacted with PCB circuit board (2), still be provided with temperature sensor (22) and electric control switch (23) on PCB circuit board (2), temperature sensor (22) and electric control switch (23) all with main control MCU (21) electric connection, electric control switch (23) and heat radiation fan (4) electric connection, casing (1) inside is fixed and is provided with filter screen (8), filter screen (8) wholly are U type frame construction, each lateral wall subsides of filter screen (8) are offered on the inside wall of louvre one (5) and louvre two (6) in casing (1).

2. The low power inverter of claim 1, wherein: and the four side walls of the shell (1) adjacent to the first radiating holes (5) are symmetrically provided with second radiating holes (6), and the second radiating holes (6) are positioned close to the radiating fins (3).

3. A low power inverter as claimed in claim 2, wherein: the side wall of the shell (1) provided with the first heat dissipation hole (5) is provided with a detachable rear cover (7), and the filter screen (8) is fixedly connected to the rear cover (7) through screws.

4. A low power inverter as claimed in claim 3, wherein: the rear cover (7) is integrally provided with a mounting plate along the edge, and the rear cover (7) is fixed on the shell (1) through the combination of the mounting plate and the screw.