CN217011583U

CN217011583U - Low-noise pure sine wave inverter

Info

Publication number: CN217011583U
Application number: CN202220477941.4U
Authority: CN
Inventors: 吴凤明; 闫丛丛
Original assignee: Jiangxi Baiying High Tech Co ltd
Current assignee: Jiangxi Baiying High Tech Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-07-19
Anticipated expiration: 2032-03-07

Abstract

The utility model provides a low-noise pure sine wave inverter which comprises a bottom plate, a PCBA (printed circuit board assembly) core, a fan panel and a connecting panel, wherein the fan panel and the connecting panel are oppositely arranged at two ends of the bottom plate, an air outlet part is arranged on the fan panel, the connecting panel is provided with a plurality of connecting interfaces, one end of the PCBA core is arranged at the inner side of the connecting panel and is electrically connected with the connecting interfaces, a fan heater is arranged at the other end of the PCBA core, the fan heater is positioned at the top of the bottom plate, a fan is arranged between the fan panel and the fan heater, the fan is aligned with the air outlet part, a boss is arranged at the inner side of the fan panel, and the fan and the boss are abutted to be arranged on the fan panel. The utility model has the function of solving the problem of high noise of the noise fan of the existing sine wave inverter.

Description

Low-noise pure sine wave inverter

Technical Field

The utility model relates to the technical field of sine wave inverters, in particular to a low-noise pure sine wave inverter.

Background

A sine wave inverter is a kind of inverter, and is a power electronic device that converts direct current electric energy (power battery, storage battery) into alternating current (generally 220V, 50Hz sine wave). The inverter is the reverse process of the ACDC converter. The ACDC converter or power adapter is named because the ACDC converter or power adapter rectifies 220V alternating current into direct current for use, and the inverter plays a reverse role.

A conventional 400W sine wave inverter is equipped with a 4010 fan. 4010 the fan hugs closely the fan panel operation and rotates, and the fan needs the rotational speed of 8000 times per minute operation fan heat, guarantees sine wave inverter's normal operating. A fan operating at high speed can result in: firstly, the noise is bigger, secondly, the fan rotational speed is too high, reduces fan life to influence the life-span of dc-to-ac converter product. We therefore propose a low noise pure sine wave inverter to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide a low-noise pure sine wave inverter which has the function of solving the problem that a noise fan of the existing sine wave inverter has high noise. In order to achieve the purpose, the utility model adopts the following technical scheme:

(II) technical scheme

The utility model provides a pure sinusoidal wave dc-to-ac converter of low noise, includes bottom plate, PCBA core, fan panel and connection panel install relatively in the bottom plate both ends, it has air-out portion to open on the fan panel, connection panel is equipped with a plurality of connection interface, PCBA core one end install in connection panel inboard, and with connection interface electric connection, the other end is installed and is fanned out the heater, fan heater is located the bottom plate top, the fan panel with be equipped with the fan between the fan heater, the fan with air-out portion aligns fan panel inboard is equipped with the boss, the fan with the boss offset install in the fan panel.

Adopt above-mentioned technical scheme, the radiator carries out the heat cooling to PCBA core, and the fan is discharged the heat from air-out portion, and the boss is with fan jack-up and air-out portion interval certain distance, avoids fan and air-out portion to paste tightly to air exhaust, produces great noise.

Further, the height of the boss is 3 mm.

By adopting the technical scheme, the distance between the fan and the air outlet part is ensured, and meanwhile, a larger space cannot be generated.

Further set up as, air-out portion has a plurality of air outlets, the air outlet wind air-out portion center is circular distribution.

Adopt above-mentioned technical scheme, carry out exhaust fan heat to inside, and have the protection guard action to the fan.

Further, the air inlet end of the air outlet is provided with a chamfer.

By adopting the technical scheme, the chamfer is favorable for discharging hot air from the air outlet.

Further, the fan is 5020 hot fan.

By adopting the technical scheme, the larger fan size has better heat-discharging effect.

Further set up as, boss quantity is four, distributes in on four angles of fan.

By adopting the technical scheme, the four bosses are distributed on the four corners of the fan, so that the fan is better in connection stability on the fan panel.

Further, the boss is right-angled.

By adopting the technical scheme, the right-angle boss has better supporting effect.

Further, the rotating speed of the fan is 5000 revolutions.

By adopting the technical scheme, the service life of the fan cannot be influenced by the work at the rotating speed of 5000 rpm, and the noise is low during operation.

In conclusion, the utility model has the advantages of low noise and good heat dissipation effect.

Drawings

The utility model will be further described with reference to the following examples with reference to the accompanying drawings.

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

FIG. 2 is a schematic view of a fan panel;

fig. 3 is a partially enlarged view a.

The reference numbers illustrate: 1. a base plate; 2. PCBA core; 3. a fan panel; 4. a connection panel; 5. an air outlet part; 6. a fan heater; 7. a fan; 8. a boss; 9. an air outlet; 10. and (6) chamfering.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The utility model is further described with reference to the following detailed description and accompanying drawings.

Referring to fig. 1 to 3, a low noise pure sine wave inverter includes a SW400 iron base plate 1, and a fan panel 3 and a connection panel 4 are fixed to two ends of the base plate 1 by screws. The fan panel 3 and the connection panel 4 are disposed opposite to each other. The middle of the fan panel 3 is provided with an air outlet part 5, the air outlet part 5 is surrounded by a circle of air outlets 9 around the center of the air outlet part 5, and the air outlets 9 are in irregular shapes from the center of the air outlet part 5 to the outside and are changed from small to large. The air inlet side of the air outlet 9 is provided with a chamfer 10 so as to better discharge hot air. Four screw connection parts are arranged on the periphery of the air outlet part 5 on the inner side of the fan panel 3, and right-angle bosses 8 are respectively arranged on the periphery of the screw connection parts. The height of the boss 8 is 3-10 mm, and 3mm is preferably adopted. The outer side of the connecting panel 4 is provided with a plurality of connecting interfaces, and the inner layer is provided with the PCBA movement 2. PCBA core 2 and connection interface electric connection, PCBA core 2 still installs the radiator, and the top at bottom plate 1 is fixed simultaneously to the radiator. The radiator plays the role of carrying out heat dissipation on components of the PCBA machine core 2. A fan 7 is arranged between the fan heater 6 and the fan panel 3, and the fan 7 is a 5020 hot fan. 5020 the hot air fan has 50 long, 50 wide and 20 high sizes. 5020 the fan hot fan is installed on the fan panel 3 through screws and is jacked up by four right-angle bosses 8. The fan 7 is spaced from the fan panel 3 by the height of the boss 8. Therefore, the problem that the fan 7 clings to the fan panel 3 to exhaust the fan heat and generate large noise is effectively solved. Wherein 5020 the rotating speed of the hot air fan is 5000 r/min. The lower rotation speed does not cause larger noise and ensures the service life of the fan 7.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. The utility model provides a pure sine wave inverter of low noise, includes bottom plate (1), PCBA core (2), fan panel (3) and connection panel (4) install relatively in bottom plate (1) both ends, it has air-out portion (5) to open on fan panel (3), connection panel (4) are equipped with a plurality of connection interfaces, PCBA core (2) one end install in connection panel (4) are inboard, and with connection interface electric connection, fan heater (6) are installed to the other end, fan heater (6) are located bottom plate (1) top, its characterized in that: fan panel (3) with be equipped with fan (7) between fan heater (6), fan (7) with go out wind portion (5) and align fan panel (3) inboard is equipped with boss (8), fan (7) with boss (8) offset install in fan panel (3).

2. A low noise pure sine wave inverter as claimed in claim 1 wherein: the height of the boss (8) is 3 mm.

3. A low noise pure sine wave inverter as claimed in claim 1 wherein: the air outlet part (5) is provided with a plurality of air outlets (9), and the air outlets (9) wind the center of the air outlet part (5) in a circular distribution.

4. A low noise pure sine wave inverter as claimed in claim 3, wherein: and a chamfer (10) is formed at the wind inlet end of the wind outlet (9).

5. A low noise pure sine wave inverter according to claim 1 or 2, wherein: the fan (7) is a 5020 hot fan.

6. The low noise pure sine wave inverter of claim 5, wherein: the number of the bosses (8) is four, and the bosses are distributed on four corners of the fan (7).

7. The low noise pure sine wave inverter of claim 6, wherein: the boss (8) is right-angled.

8. The low noise pure sine wave inverter of claim 5, wherein: the rotating speed of the fan (7) is 5000 revolutions per minute.