CN216491416U - Silencing device for frequency converter - Google Patents

Abstract

The utility model discloses a silencing device for a frequency converter, which comprises a frequency converter body, wherein a radiating assembly penetrates through the top of the frequency converter body, radiating holes penetrate through the outer wall of the frequency converter body, a temperature sensor is fixedly installed inside the frequency converter body, and installation assemblies are fixedly connected to two sides of the frequency converter body. According to the utility model, the mounting assemblies are fixedly connected to the two sides of the frequency converter body, the screw rod can be rotated to drive the screw sleeve to move by utilizing the rotating screw rod, the screw sleeve moves to drive the transmission plate to move, the sliding column at the top of the transmission plate is driven to move in the sliding groove by matching with the movable shaft, the sliding column moves to match with the sliding groove and the sliding block to drive the movable plate to move, the movable plate moves to drive the connecting plate to move, and the connecting plate moves to drive the limiting plate to limit the silencer, so that the aim of facilitating the installation of workers is achieved, and the silencer can be replaced by a new silencer when damaged.

Description

Silencing device for frequency converter

Technical Field

The utility model relates to the technical field of frequency converter equipment, in particular to a silencing device for a frequency converter.

Background

The frequency converter is an electric control device which applies frequency conversion technology and microelectronic technology and controls an alternating current motor by changing the working power supply frequency mode of the motor, and mainly comprises a rectifier (alternating current to direct current), a filter, an inverter (direct current to alternating current), a brake unit, a drive unit, a detection unit microprocessing unit and the like, the frequency converter adjusts the voltage and the frequency of an output power supply by switching on and off an internal IGBT (insulated gate bipolar translator), and provides the required power supply voltage according to the actual requirement of the motor, thereby achieving the purposes of energy conservation and speed regulation, in addition, the frequency converter has a plurality of protection functions, such as overcurrent, overvoltage, overload protection and the like, along with the continuous improvement of the industrial automation degree, the frequency converter is also widely applied, and in the using process, the existing silencing device for the frequency converter has a plurality of problems or defects:

traditional silencing device for converter all can install the muffler in the in-service use for the noise reduction, but present muffler is not convenient for the staff and installs, and later stage muffler damages when needing to change, and is also more troublesome, and the converter generally dispels the heat through the louvre simultaneously, and when in summer, when ambient temperature is higher, the radiating effect of louvre is relatively poor, can't satisfy people's daily user demand.

Disclosure of Invention

The present invention aims to provide a silencing device for frequency converters to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a silencing device for converter, includes the converter body, the top of converter body is run through and is provided with radiator unit, the outer wall of converter body runs through and is provided with the louvre, the inside fixed mounting of converter body has temperature sensor, the both sides of converter body all fixedly connected with installation component, the bottom movable mounting of installation component has the muffler, the bottom fixed mounting of muffler has the backup pad, the bottom of converter body is fixed and is provided with the recess, the inside equidistance of recess is provided with buffering subassembly.

As a further scheme of the utility model: the mounting assembly comprises a transmission case, the inside of the transmission case is movably connected with a lead screw, the top of the lead screw is movably connected with a movable shaft, the surface of the lead screw is in threaded connection with a screw sleeve, the outer wall of the screw sleeve is fixedly connected with a transmission plate, and the surface of the transmission plate is fixedly connected with a mounting block.

As a further scheme of the utility model: the bottom swing joint of driving plate has the movable plate, the fixed surface of movable plate is provided with the sliding tray, the inside sliding connection of sliding tray has the slip post, the both sides of movable plate are all fixed and are provided with the spout, the inside sliding connection of spout has the slider, the bottom fixedly connected with connecting plate of movable plate, the bottom fixedly connected with limiting plate of connecting plate.

As a further scheme of the utility model: the heat dissipation assembly comprises a heat dissipation groove, an annular plate is fixedly connected to the outer wall of the heat dissipation groove, a dust screen is fixedly arranged at the top of the heat dissipation groove, and a fan is fixedly arranged inside the heat dissipation groove.

As a further scheme of the utility model: the fixed guide way that is provided with in bottom of radiating groove, the inside fixedly connected with refrigeration piece of guide way, the fixed filter screen that is provided with in bottom of refrigeration piece.

As a further scheme of the utility model: the buffer component comprises a buffer slot, the inside of the buffer slot is fixedly connected with a slide bar, the surface of the slide bar is movably connected with a first spring, the top of the first spring is movably connected with a buffer plate, the top of the buffer plate is fixedly connected with a buffer column, and the surface of the buffer column is connected with a second spring in a sleeved mode.

Compared with the prior art, the utility model has the beneficial effects that: this a silencing device for converter has following advantage:

(1) the installation assemblies are fixedly connected to the two sides of the frequency converter body, a rotary screw rod can be utilized, the screw rod rotates to drive the screw sleeve to move, the screw sleeve moves to drive the transmission plate to move, the movable shaft is matched to drive the sliding column at the top of the transmission plate to move in the sliding groove, the sliding column moves to match the sliding groove and the sliding block to drive the movable plate to move, the movable plate moves to drive the connecting plate to move, and the connecting plate moves to drive the limiting plate to limit the silencer, so that the installation of workers is facilitated, the silencer can be replaced when the silencer is damaged conveniently, the problem that the traditional silencer can be installed for reducing noise is solved, the existing silencer is inconvenient for the workers to install, and the problem that the silencer is troublesome when the silencer needs to be replaced when the silencer is damaged in later period;

(2) the heat dissipation assembly is arranged at the top of the frequency converter body in a penetrating mode, the temperature sensor can be used for detecting the temperature inside the frequency converter, when the temperature is too high, signals are transmitted to the external controller, the external controller controls the fan to start working, and the cold air dissipated by the refrigerating sheet is blown into the frequency converter by the wind power generated by the rotation of the fan to be cooled;

(3) be provided with the buffering subassembly through the inside equidistance at the recess, can utilize the effort and the reaction force of second spring to carry out buffering for the first time, the buffering post moves down simultaneously and drives the buffer board and move down, and the cooperation slide bar extrudees first spring, utilizes the resilience of first spring, can further improve the effect of buffering to reach the purpose of the live time of extension converter.

Drawings

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

FIG. 2 is an enlarged view of the utility model at A;

FIG. 3 is an enlarged view of the utility model at B;

FIG. 4 is a partial structural view of a cushion assembly according to the present invention.

In the figure: 1. a frequency converter body; 2. a muffler; 3. a buffer assembly; 301. a buffer column; 302. a slide bar; 303. a first spring; 304. a second spring; 305. a buffer tank; 306. a buffer plate; 4. a support plate; 5. a groove; 6. a heat dissipating component; 601. an annular plate; 602. a heat sink; 603. a guide groove; 604. a filter screen; 605. a dust screen; 606. a fan; 607. a refrigeration plate; 7. mounting the component; 701. a transmission case; 702. sleeving the silk; 703. a drive plate; 704. a chute; 705. a slider; 706. moving the plate; 707. a movable shaft; 708. mounting blocks; 709. a screw rod; 710. a sliding post; 711. a sliding groove; 712. a connecting plate; 713. a limiting plate; 8. heat dissipation holes; 9. a temperature sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a silencer for a frequency converter comprises a frequency converter body 1, wherein a heat dissipation assembly 6 is arranged at the top of the frequency converter body 1 in a penetrating mode, the heat dissipation assembly 6 comprises a heat dissipation groove 602, an annular plate 601 is fixedly connected to the outer wall of the heat dissipation groove 602, a dust screen 605 is fixedly arranged at the top of the heat dissipation groove 602, a fan 606 is fixedly arranged inside the heat dissipation groove 602, a guide groove 603 is fixedly arranged at the bottom of the heat dissipation groove 602, a refrigeration sheet 607 is fixedly connected inside the guide groove 603, a filter screen 604 is fixedly arranged at the bottom of the refrigeration sheet 607, a heat dissipation hole 8 is arranged at the outer wall of the frequency converter body 1 in a penetrating mode, and a temperature sensor 9 is fixedly arranged inside the frequency converter body 1;

specifically, as shown in fig. 1 and 2, when the frequency converter is used, the heat dissipation assembly 6 is arranged at the top of the frequency converter body 1 in a penetrating manner, the temperature sensor 9 can be used for detecting the temperature inside the frequency converter, when the temperature is too high, a signal is transmitted to the external controller, the external controller controls the fan 606 to start working, the wind power generated by the rotation of the fan 606 is used for blowing the cold air dissipated by the refrigeration piece 607 into the frequency converter for cooling, meanwhile, the filter screen 604 is arranged for dehumidifying the cold air generated by the refrigeration piece 607, so that the safety of the frequency converter during use is improved, and the problems that the traditional frequency converter generally dissipates heat through the heat dissipation holes 8, when the ambient temperature is high in summer, the heat dissipation effect of the heat dissipation holes 8 is poor, and the daily use requirements of people cannot be met are solved;

the two sides of the frequency converter body 1 are fixedly connected with mounting assemblies 7, each mounting assembly 7 comprises a transmission case 701, the interior of each transmission case 701 is movably connected with a screw 709, the top of each screw 709 is movably connected with a movable shaft 707, the surface of each screw 709 is in threaded connection with a screw sleeve 702, the outer wall of each screw sleeve 702 is fixedly connected with a transmission plate 703, the surface of each transmission plate 703 is fixedly connected with a mounting block 708, the bottom of each transmission plate 703 is movably connected with a movable plate 706, the surface of each movable plate 706 is fixedly provided with a sliding groove 711, the interior of each sliding groove 711 is slidably connected with a sliding column 710, the two sides of each movable plate 706 are fixedly provided with sliding grooves 704, the interior of each sliding groove 704 is slidably connected with a sliding block 705, the bottom of each movable plate 706 is fixedly connected with a connecting plate 712, the bottom of each connecting plate 712 is fixedly connected with a limiting plate 713, the bottom of each mounting assembly 7 is movably mounted with a silencer 2, and the bottom of each silencer 2 is fixedly mounted with a supporting plate 4, a groove 5 is fixedly arranged at the bottom of the frequency converter body 1;

specifically, as shown in fig. 1 and fig. 3, when in use, the mounting assemblies 7 are fixedly connected to both sides of the frequency converter body 1, and the screw 709 is rotated to drive the screw bushing 702 to move, the screw bushing 702 moves to drive the transmission plate 703 to move, the movable shaft 707 is matched to drive the sliding column 710 at the top of the transmission plate 703 to move in the sliding groove 711, the sliding column 710 moves to match the sliding groove 704 and the sliding block 705 to drive the moving plate 706 to move, the moving plate 706 moves to drive the connecting plate 712 to move, the connecting plate 712 moves to drive the limiting plate 713 to limit the position of the silencer 2, so as to facilitate installation by a worker, facilitate replacement of a new silencer 2 when the silencer 2 is damaged, and solve the problem that the silencer 2 is installed conventionally to reduce noise, but the existing silencer 2 is inconvenient for installation by a worker, and when the silencer 2 needs to be replaced when damaged, also troublesome;

the buffer components 3 are equidistantly arranged in the groove 5, each buffer component 3 comprises a buffer groove 305, a sliding rod 302 is fixedly connected in each buffer groove 305, a first spring 303 is movably connected to the surface of each sliding rod 302, the top of each first spring 303 is movably connected with a buffer plate 306, a buffer column 301 is fixedly connected to the top of each buffer plate 306, and a second spring 304 is connected to the surface of each buffer column 301 in a sleeved mode;

specifically, as shown in fig. 1 and 4, during the use, through being provided with buffering subassembly 3 at the inside equidistance of recess 5, can utilize the effort and the reaction force of second spring 304 to carry out buffering for the first time, simultaneously cushion column 301 moves down and drives buffer board 306 and move down, cooperates slide bar 302, extrudees first spring 303, utilizes the resilience of first spring 303, can further improve the effect of buffering to reach the purpose of extension converter's live time.

The working principle is as follows: when the frequency converter is used, firstly, the mounting assemblies 7 are fixedly connected to two sides of the frequency converter body 1, the screw rod 709 can be rotated to drive the screw sleeve 702 to move, the screw sleeve 702 moves to drive the transmission plate 703 to move, the sliding column 710 at the top of the transmission plate 703 is driven to move in the sliding groove 711 by matching with the movable shaft 707, the sliding column 710 moves to match with the sliding groove 704 and the sliding block 705 to drive the moving plate 706 to move, the moving plate 706 moves to drive the connecting plate 712 to move, and the connecting plate 712 moves to drive the limiting plate 713 to limit the silencer 2, so that the installation by workers is facilitated, and the silencer 2 can be replaced by a new silencer 2 when damaged;

secondly, the heat dissipation assembly 6 is arranged at the top of the frequency converter body 1 in a penetrating mode, the temperature sensor 9 can be used for detecting the temperature inside the frequency converter, when the temperature is too high, signals are transmitted to the external controller, the external controller controls the fan 606 to start working, cold air emitted by the refrigerating sheet 607 is blown into the frequency converter by wind power generated by rotation of the fan 606 to be cooled, meanwhile, the filter screen 604 is arranged and used for dehumidifying the cold air generated by the refrigerating sheet 607, and the safety of the frequency converter during use is improved;

finally, the buffer assemblies 3 are arranged in the grooves 5 at equal intervals, the first buffer can be carried out by utilizing the acting force and the reacting force of the second springs 304, meanwhile, the buffer columns 301 move downwards to drive the buffer plate 306 to move downwards, the buffer plates are matched with the slide bars 302 to extrude the first springs 303, the buffer effect can be further improved by utilizing the resilience of the first springs 303, and therefore the purpose of prolonging the service time of the frequency converter is achieved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims (6)

1. A silencing device for a frequency converter comprises a frequency converter body (1), and is characterized in that: the top of converter body (1) is run through and is provided with radiator unit (6), the outer wall of converter body (1) runs through and is provided with louvre (8), the inside fixed mounting of converter body (1) has temperature sensor (9), the both sides of converter body (1) are all fixedly connected with installation component (7), the bottom movable mounting of installation component (7) has muffler (2), the bottom fixed mounting of muffler (2) has backup pad (4), the bottom fixed of converter body (1) is provided with recess (5), the inside equidistance of recess (5) is provided with buffering subassembly (3).

2. The silencer assembly of claim 1, wherein: the mounting assembly (7) comprises a transmission case (701), the inside swing joint of the transmission case (701) is provided with a screw rod (709), the top swing joint of the screw rod (709) is provided with a movable shaft (707), the surface thread of the screw rod (709) is provided with a screw sleeve (702), the outer wall of the screw sleeve (702) is fixedly connected with a transmission plate (703), and the surface of the transmission plate (703) is fixedly connected with a mounting block (708).

3. The silencer assembly of claim 2, wherein: the bottom swing joint of driving plate (703) has movable plate (706), the fixed surface of movable plate (706) is provided with sliding tray (711), the inside sliding connection of sliding tray (711) has sliding column (710), the both sides of movable plate (706) are all fixed and are provided with spout (704), the inside sliding connection of spout (704) has slider (705), the bottom fixedly connected with connecting plate (712) of movable plate (706), the bottom fixedly connected with limiting plate (713) of connecting plate (712).

4. The silencer assembly of claim 1, wherein: the heat dissipation assembly (6) comprises a heat dissipation groove (602), the outer wall of the heat dissipation groove (602) is fixedly connected with an annular plate (601), a dust screen (605) is fixedly arranged at the top of the heat dissipation groove (602), and a fan (606) is fixedly arranged inside the heat dissipation groove (602).

5. The silencer assembly of claim 4, wherein: the fixed guide way (603) that is provided with in bottom of radiating groove (602), the inside fixedly connected with refrigeration piece (607) of guide way (603), the fixed filter screen (604) that is provided with in bottom of refrigeration piece (607).

6. The silencer assembly of claim 1, wherein: buffer unit (3) include dashpot (305), the inside fixedly connected with slide bar (302) of dashpot (305), the surperficial swing joint of slide bar (302) has first spring (303), the top swing joint of first spring (303) has buffer board (306), the top fixedly connected with buffering post (301) of buffer board (306), the surface cup joint of buffering post (301) is connected with second spring (304).

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