CN211429233U

CN211429233U - Frequency converter

Info

Publication number: CN211429233U
Application number: CN202020315018.1U
Authority: CN
Inventors: 郭超; 陈学云
Original assignee: Shenzhen Hewei Electrical Technology Co ltd
Current assignee: Shenzhen Hewei Electrical Technology Co ltd
Priority date: 2020-03-14
Filing date: 2020-03-14
Publication date: 2020-09-04
Anticipated expiration: 2030-03-14

Abstract

The utility model provides a frequency converter, which comprises a plastic shell, wherein a PCB terminal board is arranged at the inner side of the plastic shell, the PCB terminal board can be detachably connected with a PCB drive board, and the PCB drive board can be detachably connected with the inner side of the plastic shell; be equipped with the aluminium alloy radiator on the PCB drive plate, the connection ground connection sheet metal component can be dismantled to the aluminium alloy radiator, the ground connection sheet metal component extends to the plastic casing outside.

Description

Frequency converter

Technical Field

The utility model relates to a converter technical field mainly relates to the converter.

Background

A Variable-frequency Drive (VFD) is a power control device that applies frequency conversion technology and microelectronic technology to control an ac motor by changing the frequency of a working power supply of the motor.

The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of an output power supply by switching on and off an internal IGBT, provides the required power supply voltage according to the actual requirement of the motor, and further achieves the purposes of energy saving and speed regulation. With the continuous improvement of the industrial automation degree, the frequency converter is also widely applied.

The existing frequency converter is internally provided with a radiator through a plastic shell, and the radiator is independently arranged, so that the technical problem of poor radiating effect of the radiator is solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a converter is used for solving proposing in the background art because current converter passes through to be equipped with the radiator in the plastic casing, because the independent setting of radiator to the not good technical problem of radiating effect of radiator.

In order to achieve the above object, the utility model provides a following technical scheme: the frequency converter comprises a plastic shell, wherein a PCB terminal board is arranged on the inner side of the plastic shell, the PCB terminal board is detachably connected with a PCB driving board, and the PCB driving board is detachably connected to the inner side of the plastic shell;

be equipped with the aluminium alloy radiator on the PCB drive plate, the connection ground connection sheet metal component can be dismantled to the aluminium alloy radiator, the ground connection sheet metal component extends to the plastic casing outside.

Furthermore, a plurality of heat dissipation air duct openings are arranged above the plastic shell, and the upper part of the plastic shell is arranged in a concave manner.

Furthermore, the plastic casing openly is equipped with the panel, the panel top is equipped with control module, the control module below the panel below is equipped with a plurality of input/output terminal interfaces.

Further, the panel is arranged in an L-like shape.

Furthermore, a nameplate sticking block is correspondingly arranged on the side surface of the plastic shell.

Furthermore, a heat dissipation fan is arranged below the plastic shell.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses 1, the structure has done fine dustproof construction, has greatly increased the reliability 2 of this kind of converter, the top is designed into recessed form, makes the machine become shorter, saves installation space; 3. the PCB terminal board is directly welded on the PCB driving board, and the driving board is vertically installed, so that the case becomes long and beautiful; 4. because the PCB terminal board is welded on the PCB drive board, the terminal board is clamped up and down, so that the terminal board is firmly vertical to the PCB drive board, the PCB is not stressed during wiring, components are not stressed, and the stability and reliability of the machine are ensured.

Drawings

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

FIG. 2 is an exploded view of the frequency converter of the present invention;

FIG. 3 is a schematic view of the assembly and disassembly of the frequency converter of the present invention;

fig. 4 is a schematic diagram of the structure of the PCB driving board of the present invention.

In the figure: the heat dissipation system comprises a plastic shell, 11-a heat dissipation air duct opening, 12-a panel, 13-a control module, 14-an input and output terminal interface, 2-a PCB terminal board, 3-a PCB driving board, 4-an aluminum profile heat radiator, 5-a grounding sheet metal part, 6-a nameplate sticking block and 7-a heat dissipation fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In an embodiment, referring to fig. 1 to 4, a frequency converter includes a plastic housing 1, a PCB terminal board 2 is disposed inside the plastic housing 1, the PCB terminal board 2 is detachably connected to a PCB driving board 3, and the PCB driving board 3 is detachably connected to the inside of the plastic housing 1;

be equipped with aluminium alloy radiator 4 on the PCB drive plate 3, aluminium alloy radiator 4 can dismantle connection ground connection sheet metal component 5, ground connection sheet metal component 5 extends to the 1 outside of plastic casing.

In an embodiment, referring to fig. 1-4, a plurality of heat dissipation air duct openings 11 are disposed above the plastic housing 1, and the plastic housing 1 is disposed in a downward-concave manner.

In an embodiment, referring to fig. 1 to 4, a front surface of the plastic housing 1 is provided with a panel 12, a control module 13 is disposed above the panel 12, and a plurality of input/output terminal interfaces 14 are disposed below the control module 13 and below the panel 12.

Referring to fig. 1-4, the panel 12 is configured in an "L" -like configuration.

In an embodiment, referring to fig. 1-4, a nameplate sticker 6 is correspondingly disposed on a side surface of the plastic housing 1.

In an embodiment, referring to fig. 1 to 4, a heat dissipation fan 7 is disposed below the plastic housing 1.

The operation principle is as follows: the utility model discloses 1, the structure is done fine dustproof construction at first, has greatly increased the reliability 2 of this kind of converter, the top is designed into recessed form, makes the machine become shorter, saves installation space; 3. the PCB terminal board is directly welded on the PCB driving board, and the driving board is vertically installed, so that the case becomes long and beautiful; 4. because the PCB terminal board is welded on the PCB drive board, the terminal board is clamped up and down, so that the terminal board is firmly vertical to the PCB drive board, the PCB is not stressed during wiring, components are not stressed, and the stability and reliability of the machine are ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The frequency converter comprises a plastic shell (1), and is characterized in that: a PCB terminal board (2) is arranged on the inner side of the plastic shell (1), the PCB terminal board (2) is detachably connected with a PCB driving board (3), and the PCB driving board (3) is detachably connected to the inner side of the plastic shell (1);

be equipped with aluminium alloy radiator (4) on PCB drive plate (3), aluminium alloy radiator (4) can be dismantled and connect ground connection sheet metal component (5), ground connection sheet metal component (5) extend to plastic casing (1) outside.

2. The frequency converter of claim 1, wherein: a plurality of heat dissipation air duct openings (11) are formed in the upper portion of the plastic shell (1), and the upper portion of the plastic shell (1) is arranged in a downward concave mode.

3. The frequency converter of claim 1, wherein: plastic casing (1) openly is equipped with panel (12), panel (12) top is equipped with control module (13), control module (13) below panel (12) below is equipped with a plurality of input/output terminal interfaces (14).

4. The frequency converter of claim 3, wherein: the panel (12) is arranged in an L-like shape.

5. The frequency converter of claim 1, wherein: and a nameplate sticking block (6) is correspondingly arranged on the side surface of the plastic shell (1).

6. The frequency converter of claim 1, wherein: and a heat radiation fan (7) is arranged below the plastic shell (1).