阅读说明：本技术 一种带防电磁干扰的变频器 (Frequency converter with electromagnetic interference resistance ) 是由 吴云 于 2019-10-23 设计创作，主要内容包括：本发明公开了一种带防电磁干扰的变频器，包括防干扰箱体,防干扰箱体的一端安装有安装面板，安装面板可以进行安装操作，安装面板可以控制防干扰箱体内部的部件进行作业控制，安装面板内安装有控制面板，安装面板与防干扰箱体靠近的一侧安装有固定扣，固定扣可以进行固定安装，且可以进行快速的拆卸与安装，固定扣的一侧开设有固定口，固定口内贯穿安装有固定螺栓，防干扰箱体一端与固定扣通过固定螺栓连接，防干扰箱体与安装面板之间的固定扣在连接的时候，将防干扰箱体镶嵌安装在固定口内，通过固定螺栓贯穿固定，将防干扰箱体与安装面板进行固定安装，且在拆卸的时候可以拆去固定螺栓可以快速的进行拆卸。(The invention discloses a frequency converter with electromagnetic interference resistance, which comprises an anti-interference box body, wherein one end of the anti-interference box body is provided with an installation panel, the installation panel can carry out installation operation, the installation panel can control components in the anti-interference box body to carry out operation control, a control panel is arranged in the installation panel, one side of the installation panel, which is close to the anti-interference box body, is provided with a fixing buckle, the fixing buckle can carry out fixed installation and can carry out rapid disassembly and installation, one side of the fixing buckle is provided with a fixing port, a fixing bolt penetrates through the fixing port, one end of the anti-interference box body is connected with the fixing buckle through the fixing bolt, when the fixing buckle between the anti-interference box body and the installation panel is connected, the anti-interference box body is embedded in the fixing port, the anti-interference box body and the installation panel are fixedly, and the fixing bolt can be detached when the device is detached, so that the device can be rapidly detached.)

1. The utility model provides a take electromagnetic interference resistance's converter, includes jam-proof box (1), its characterized in that: an installation panel (2) is installed at one end of the anti-interference box body (1), a control panel (3) is installed in the installation panel (2), a fixing buckle (11) is installed at one side, close to the anti-interference box body (1), of the installation panel (2), a fixing opening (13) is formed in one side of the fixing buckle (11), a fixing bolt (12) penetrates through the fixing opening (13), and one end of the anti-interference box body (1) is connected with the fixing buckle (11) through the fixing bolt (12);

a frequency converter main body (4) is installed in the anti-interference box body (1), an anti-interference machine box (6) is installed in the frequency converter main body (4), and an electric control box (5) is installed at the top of the anti-interference machine box (6);

keep away from jam-proof box (1) sealed apron (7) are installed to one side of installation panel (2), the through hole has been seted up in sealed apron (7), sealing mechanism is installed to the both sides of through hole, fixed slot (8) have been seted up to sealing mechanism's both sides, install movable sealing plate (10) in fixed slot (8), the haulage plate is installed at movable sealing plate (10) top, traction spring pole (9) are installed to the both sides of haulage plate, the bottom of traction spring pole (9) with fixed slot (8) outer wall connection.

2. The frequency converter with electromagnetic interference resistance of claim 1, characterized in that: the movable sealing plate (10) is arranged oppositely, the number of the movable sealing plates (10) is two, a U-shaped groove is formed in one side, opposite to the movable sealing plates (10), of each movable sealing plate, and one side, opposite to the movable sealing plates (10), of each movable sealing plate is connected to form a connecting hole.

3. The frequency converter with electromagnetic interference resistance of claim 1, characterized in that: the installation panel (2) is made of anti-interference materials.

4. The frequency converter with electromagnetic interference resistance of claim 1, characterized in that: a plurality of groups of connectors are installed at one end, far away from the installation panel (2), of the anti-interference box body (1).

5. The frequency converter with electromagnetic interference resistance of claim 1, characterized in that: a plurality of groups of control keys are installed in the control panel (3), a rotary control button is installed below the control keys, and the rotary control button is connected with the interference rejection machine box (6).

6. The frequency converter with electromagnetic interference resistance of claim 1, characterized in that: the anti-interference box is characterized in that one end of the anti-interference box body (1) is provided with a sliding groove, the sliding groove is in sliding connection with the sealing cover plate (7), and the sealing cover plate (7) is made of anti-interference materials.

Technical Field

The invention relates to the technical field of frequency converters, in particular to a frequency converter with electromagnetic interference resistance.

Background

The frequency converter, also called a variable frequency drive or drive controller, may be interpreted as an Inverter (as in english for inverters). The frequency converter is one of speed-adjustable driving systems, and is an ac/ac converter that applies a frequency conversion driving technique to change the frequency and amplitude of the operating voltage of an ac motor to smoothly control the speed and torque of the ac motor, and most commonly, the input and output of the ac/ac converter are ac.

Before the frequency converter appears, the application of adjusting the rotating speed of the motor can be finished through a direct current motor, otherwise, through a VS motor utilizing a built-in coupling machine, the coupling machine is used for reducing the actual rotating speed of the motor in operation, and the frequency converter simplifies the work, reduces the equipment volume and greatly reduces the maintenance rate. However, the power line of the inverter and the motor line have high frequency switching signals, which may cause electromagnetic interference, and the power factor at the input side of the inverter is generally not good, which may generate harmonic waves at the power end.

The frequency converter has a wide application range from small household appliances to large-scale mine grinders and compressors. Energy around 1/3 is globally consumed by the motors driving the fixed speed centrifugal pumps, fans, and compressors, and the market penetration of frequency converters is still not high. The significant improvement of energy efficiency is one of the main reasons for using frequency converters, and the frequency converter technology has close relationship with power electronics, including semiconductor switching elements, topology of frequency converters, control and simulation technology, and improvement of control hardware and firmware.

The frequency converter receives the current influence in-process of using and leads to the inside part of frequency converter to receive the influence, receives the electromagnetic influence, and the effect that leads to the frequency conversion when using is not good.

Disclosure of Invention

The invention aims to provide a frequency converter with electromagnetic interference resistance, which aims to solve the problems that in the prior art, when the frequency converter is used, the current influences the frequency converter to influence the internal components of the frequency converter, the frequency converter is influenced by the electromagnetism, and the frequency conversion effect is poor when the frequency converter is used.

In order to achieve the purpose, the invention provides the following technical scheme: a frequency converter with electromagnetic interference resistance comprises an anti-interference box body, wherein one end of the anti-interference box body is provided with an installation panel, the installation panel can carry out installation operation, the installation panel can control components in the anti-interference box body to carry out operation control, a control panel is installed in the installation panel, one side of the installation panel, which is close to the anti-interference box body, is provided with a fixing buckle, the fixing buckle can carry out fixed installation and can carry out rapid disassembly and installation, one side of the fixing buckle is provided with a fixing port, a fixing bolt is installed in the fixing port in a penetrating way, one end of the anti-interference box body is connected with the fixing buckle through the fixing bolt, when the fixing buckle between the anti-interference box body and the installation panel is connected, the anti-interference box body is embedded and installed in the fixing port, and is fixedly installed with the installation panel through the fixing bolt, the fixing bolt can be detached during detachment, so that the rapid detachment can be realized;

a frequency converter main body is installed in the anti-interference box body, an anti-interference machine box is installed inside the frequency converter main body and is used for carrying out electromagnetic interference, an electric control box is installed at the top of the anti-interference machine box and is used for controlling internal voltage control;

the anti-interference box body is provided with a sealing cover plate at one side far away from the installation panel, the sealing cover plate is installed in a sealing mode at one end, a through hole is formed in the sealing cover plate and can be used for installing a connecting wire, the connecting wire penetrates into the through hole to be connected with the frequency converter main body, sealing mechanisms are installed at two sides of the through hole, fixing grooves are formed in two sides of each sealing mechanism, a movable sealing plate is installed in each fixing groove, a traction plate is installed at the top of each movable sealing plate, traction spring rods are installed at two sides of each traction plate and supported under the supporting condition and can be used for traction, the bottoms of the traction spring rods are connected with the outer wall of the fixing grooves, the traction spring rods are used for drawing the movable sealing plates, sealing is convenient to carry out, and the anti-interference box body can be opened when, the movable sealing plate is opened to install the connecting wire.

Preferably, the movable sealing plate is arranged oppositely, the number of the movable sealing plates is two, the U-shaped groove is formed in one side, opposite to the movable sealing plate, of the movable sealing plate, the connecting hole is formed in one side, opposite to the movable sealing plate, of the movable sealing plate, the connecting line is convenient to install, the movable sealing plate is fixed after the connecting line is installed, and the connection stability is improved.

Preferably, the installation panel is made of anti-interference materials and has a strong anti-interference effect.

Preferably, one end of the anti-interference box body, which is far away from the installation panel, is provided with a plurality of groups of connectors; and connecting and fixing the connecting line and the connector.

Preferably, a plurality of groups of control keys are installed in the control panel, a rotary control button is installed below the control keys, and the rotary control button is connected with the interference rejection machine box.

Preferably, the sliding tray has been seted up to the one end of jam-proof box, the sliding tray with sealed apron sliding connection, sealed apron adopts the jam-proof material, is convenient for carry out the pull installation, and the efficiency of installation is higher.

The invention provides a frequency converter with electromagnetic interference resistance, which has the following beneficial effects:

(1) the invention installs the installation panel through one end of the anti-interference box body, the installation panel can carry out installation operation, the installation panel can control the components in the anti-interference box body to carry out operation control, the control panel is installed in the installation panel, the fixing buckle is installed at one side of the installation panel close to the anti-interference box body, the fixing buckle can carry out fixed installation, and can be rapidly disassembled and assembled, one side of the fixing buckle is provided with a fixing port, a fixing bolt is arranged in the fixing port in a penetrating way, one end of the anti-interference box body is connected with the fixing buckle through the fixing bolt, the anti-interference box body is embedded and assembled in the fixing port when the fixing buckle between the anti-interference box body and the installation panel is connected, through fixing bolt through fixed, carry out fixed mounting with jam-proof box and installation panel, and can dismantle fixing bolt dismantlement that can be quick when dismantling.

(2) The anti-interference box body is provided with a sealing cover plate at one side far away from an installation panel, the sealing cover plate is installed with one end sealed, a through hole is arranged in the sealing cover plate and can be used for installing a connecting wire, the connecting wire penetrates into the through hole to be connected with a frequency converter main body, sealing mechanisms are arranged at two sides of the through hole, fixing grooves are arranged at two sides of the sealing mechanisms, a movable sealing plate is arranged in the fixing grooves, a traction plate is arranged at the top of the movable sealing plate, traction spring rods are arranged at two sides of the traction plate and are supported under the supporting condition, the traction plate can be pulled to exert force, the bottom of the traction spring rod is connected with the outer wall of the fixed groove, the traction spring rod is used for pulling the movable sealing plate, sealing is convenient, and can open when installing the connecting wire, open movable sealing plate and install the connecting wire into.

(3) The anti-interference device can be quickly installed and detached, can perform anti-interference on an internal anti-interference machine box, performs external anti-interference control through the anti-interference box body, improves the anti-interference effect, and protects the internal frequency converter main body, thereby improving the protection effect.

Drawings

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

FIG. 2 is a schematic view of a mounting panel of the present invention;

FIG. 3 is a schematic view of the interior of the tamper-proof enclosure of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3 according to the present invention;

fig. 5 is an enlarged view of the invention at B in fig. 3.

In the figure: 1. an anti-interference box body; 2. installing a panel; 3. an anti-interference machine box; 4. a frequency converter main body; 5. an electronic control box; 6. an anti-interference machine box; 7. sealing the cover plate; 8. fixing grooves; 9. a traction spring rod; 10. a movable sealing plate; 11. a fixing buckle; 12. fixing the bolt; 13. and (4) fixing the port.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 5, the present invention provides a technical solution: a frequency converter with electromagnetic interference resistance comprises an anti-interference box body 1, wherein an installation panel 2 is installed at one end of the anti-interference box body 1, a control panel 3 is installed in the installation panel 2, a fixing buckle 11 is installed at one side, close to the anti-interference box body 1, of the installation panel 2, a fixing opening 13 is formed in one side of the fixing buckle 11, a fixing bolt 12 penetrates through the fixing opening 13, and one end of the anti-interference box body 1 is connected with the fixing buckle 11 through the fixing bolt 12;

a frequency converter main body 4 is installed in the anti-interference box body 1, an anti-interference machine box 6 is installed in the frequency converter main body 4, and an electric control box 5 is installed at the top of the anti-interference machine box 6;

jam-proof box 1 is kept away from sealed apron 7 is installed to one side of installation panel 2, the through hole has been seted up in sealed apron 7, sealing mechanism is installed to the both sides of through hole, fixed slot 8 has been seted up to sealing mechanism's both sides, install movable sealing plate 10 in the fixed slot 8, the traction plate is installed at movable sealing plate 10 top, traction spring pole 9 is installed to the both sides of traction plate, traction spring pole 9 the bottom with 8 outer wall connections of fixed slot.

Preferably, the movable sealing plates 10 are arranged oppositely, the number of the movable sealing plates 10 is two, a U-shaped groove is formed in one side, opposite to the movable sealing plates 10, of each movable sealing plate, and one side, opposite to the movable sealing plates 10, of each movable sealing plate is connected to form a connecting hole.

Preferably, the installation panel 2 is made of an anti-interference material.

Preferably, a plurality of groups of connectors are installed at one end, far away from the installation panel 2, of the anti-interference box body 1.

Preferably, a plurality of groups of control keys are installed in the control panel 3, a rotary control button is installed below the control keys, and the rotary control button is connected with the interference rejection machine box 6.

Preferably, one end of the anti-interference box body 1 is provided with a sliding groove, the sliding groove is in sliding connection with the sealing cover plate 7, and the sealing cover plate 7 is made of anti-interference materials.

In the using process, an installation panel 2 is installed at one end of the anti-interference box body 1, the installation panel 2 can be installed for operation, the installation panel 2 can control the components inside the anti-interference box body 1 to perform operation control, a control panel 3 is installed in the installation panel 2, a fixing buckle 11 is installed at one side of the installation panel 2 close to the anti-interference box body 1, the fixing buckle 11 can be fixedly installed and can be rapidly disassembled and installed, a fixing opening 13 is formed at one side of the fixing buckle 11, a fixing bolt 12 is installed in the fixing opening 13 in a penetrating manner, one end of the anti-interference box body 1 is connected with the fixing buckle 11 through the fixing bolt 12, when the fixing buckle 11 between the anti-interference box body 1 and the installation panel 2 is connected, the anti-interference box body 1 is embedded and installed in the fixing opening 13 and is fixed through the fixing bolt 12, the anti-interference box body 1 and the installation panel 2 are fixedly installed, and the fixing bolts 12 can be removed during disassembly to quickly disassemble;

a frequency converter main body 4 is installed in the anti-interference box body 1, an anti-interference machine box 6 is installed in the frequency converter main body 4, the anti-interference machine box 6 carries out electromagnetic interference, an electric control box 5 is installed at the top of the anti-interference machine box 6, and the electric control box 5 controls internal voltage control;

a sealing cover plate 7 is installed on one side, far away from the installation panel 2, of the anti-interference box body 1, one end of the sealing cover plate 7 is hermetically installed, a through hole is formed in the sealing cover plate 7, a connecting wire can be installed through the through hole, the connecting wire penetrates into the through hole to be connected with the frequency converter main body 4, sealing mechanisms are installed on two sides of the through hole, fixing grooves 8 are formed in two sides of each sealing mechanism, a movable sealing plate 10 is installed in each fixing groove 8, a traction plate is installed on the top of each movable sealing plate 10, traction spring rods 9 are installed on two sides of each traction plate, each traction spring rod 9 is supported under the supporting condition and can exert traction force on the traction plates, the bottoms of the traction spring rods 9 are connected with the outer walls of the fixing grooves 8, and the traction spring rods 9 are used for drawing the, and can be opened when the connecting wire is installed, and the movable sealing plate 10 is opened to install the connecting wire.

The movable sealing plate 10 is arranged oppositely, the number of the movable sealing plates 10 is two, the U-shaped groove is formed in one side, opposite to the movable sealing plate 10, of the movable sealing plate, the connecting hole is formed in one side, opposite to the movable sealing plate 10, of the movable sealing plate, the connecting line is convenient to install, the movable sealing plate is fixed after the connecting line is installed, and the connection stability is improved. The installation panel 2 is made of anti-interference materials and has a strong anti-interference effect. A plurality of groups of connectors are arranged at one end of the anti-interference box body 1 far away from the installation panel 2; and connecting and fixing the connecting line and the connector. A plurality of groups of control keys are installed in the control panel 3, a rotary control button is installed below the control keys, and the rotary control button is connected with the anti-interference machine box 6. The sliding tray has been seted up to the one end of jam-proof box 1, the sliding tray with sealed apron 7 sliding connection, sealed apron 7 adopts the jam-proof material, is convenient for carry out the pull installation, and the efficiency of installation is higher.

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.