CN111371291A

CN111371291A - Modular automatic frequency conversion cabinet of high leakproofness

Info

Publication number: CN111371291A
Application number: CN202010355136.XA
Authority: CN
Inventors: 季明丽; 范肖肖; 高得龙
Original assignee: Jiangsu Maritime Institute
Current assignee: Jiangsu Maritime Institute
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-07-03

Abstract

The invention discloses a combined type high-sealing-performance automatic frequency conversion cabinet which comprises a frequency conversion cabinet body, wherein the frequency conversion cabinet body is hinged with a cabinet door through a hidden hinge, a first sealing strip is bonded on the surface of one side, close to the cabinet door, of the frequency conversion cabinet body, a magnetic suction lock is fixed on the inner wall of one end, close to the cabinet door, of the frequency conversion cabinet body, two electromagnets are embedded into the magnetic suction lock, a paint-coated coil is arranged on the outer peripheral surface of each electromagnet in a surrounding mode, a first convex plate is arranged on the surface of one side, close to the frequency conversion cabinet body, of the cabinet door, a second convex plate is arranged on the surface of one side, far away from the cabinet door, of the first convex plate, a second sealing ring is arranged on the outer peripheral surface of the second convex plate in a surrounding mode. According to the invention, through the matching of the cabinet door and the frequency conversion cabinet body, good sealing performance is provided between the cabinet body and the cabinet door of the frequency conversion cabinet, so that dust entering the frequency conversion cabinet is reduced to corrode electrical components in the frequency conversion cabinet.

Description

Modular automatic frequency conversion cabinet of high leakproofness

Technical Field

The invention relates to the technical field of frequency conversion cabinets, in particular to a combined automatic frequency conversion cabinet with high sealing performance.

Background

The frequency conversion cabinet is a control cabinet which uses a frequency converter to drive a power device. The power dragging mode popularized at present is formed due to good starting performance, speed regulation performance and energy saving effect.

According to an outdoor frequency conversion cabinet provided by patent document with application number CN201410699714.6, the outdoor frequency conversion cabinet comprises a cabinet body and a cabinet door, wherein the cabinet body is used for placing a frequency converter, the cabinet door is covered on an opening on the side wall of the cabinet body, an air inlet and an air outlet are oppositely arranged on the side wall of the cabinet body, an air inlet protective cover is arranged on the outer side of the air inlet, and an air outlet protective cover is arranged on the outer side of the air outlet; the lower part of air intake protection casing and the lower part of air outlet protection casing set up the vent respectively, and the baffle is respectively installed to vent department, and this technical scheme can make outdoor frequency conversion cabinet rain-proof snow and effectively dispel the heat.

But the defect exists at any time in current automatic frequency conversion cabinet, for example current frequency conversion cabinet generally adopts and sets up single sealing strip on one side of cabinet door or the cabinet body, reaches frequency conversion cabinet's sealed, and sealing performance is poor, leads to the dust to enter into easily and erode components and parts in the frequency conversion cabinet.

Disclosure of Invention

The invention provides a combined automatic frequency conversion cabinet with high sealing performance, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a combined type high-sealing automatic frequency conversion cabinet, which comprises a frequency conversion cabinet body, wherein the frequency conversion cabinet body is mutually hinged with a cabinet door through a hidden hinge, a first sealing strip is bonded on the surface of one side, close to the cabinet door, of the frequency conversion cabinet body, a magnetic suction lock is fixed on the inner wall of one end, close to the cabinet door, of the frequency conversion cabinet body, two electromagnets are embedded in the magnetic suction lock, a lacquer coated coil is wound on the outer peripheral surface of each electromagnet, a first convex plate is arranged on the surface of one side, close to the frequency conversion cabinet body, of the cabinet door, the first convex plate is matched with an inner cavity for mounting a power supply element on the cabinet door, a second convex plate is arranged on the surface of one side, far away from the cabinet door, of the first convex plate, a second sealing ring is wound on the outer peripheral surface of the second convex plate, and the second sealing ring is bonded with the surface of one side, and a magnetic suction plate is embedded in the cabinet door and is magnetically connected with the electromagnet.

Further, hidden hinge is including first fixed box, first fixed box is fixed in on the lateral wall of the frequency conversion cabinet body, the inside of first fixed box is rotated through the pivot and is connected with first hinge piece, first hinge piece is kept away from the one end of first fixed box runs through the casing of second hinge piece and extends to the inside of the fixed box of second and the inner wall sliding connection of the fixed box of second, the one end of second hinge piece through the pivot with the inner wall of the fixed box of second is connected, the second hinge piece is kept away from the one end of the fixed box of second with the inner wall sliding connection of first fixed box, the fixed box of second is connected with the cell body of mounting groove, the mounting groove is seted up in on the one end casing of cabinet door.

Further, the first fixed box and the second fixed box are connected through an organ type protective cover.

Furthermore, a cooling chamber is fixed on the inner wall of the frequency conversion cabinet body, a fan is fixed inside the cooling chamber, a condenser is arranged on one side of the fan and fixed inside the cooling chamber, the input end of the condenser sequentially penetrates through the cooling chamber and the shell of the frequency conversion cabinet body to be connected with an outdoor unit, and the outdoor unit is fixed on the side wall of the frequency conversion cabinet body.

Furthermore, an induced draft frame is embedded into one end, far away from the fan, of the cooling chamber, and a plurality of induced draft pieces are rotatably connected to the inside of the induced draft frame through a rotating shaft.

Furthermore, one end, far away from the induced draft frame, of each induced draft piece is connected with the guide piece through a rotating shaft, the bottom end of each guide piece is abutted to the cam, the cam is fixed at one end of the rotating shaft, and the two ends of the rotating shaft are connected with the inner wall of the bottom end of the cooling chamber through bearing seats.

Furthermore, the bottom end of the drainage piece is rotatably connected with a rotating wheel through a rotating shaft, and the rotating wheel is abutted against the peripheral surface of the cam.

Furthermore, a first bevel gear is coaxially arranged on one side of the cam and meshed with a second bevel gear, the second bevel gear is fixed on the outer peripheral surface of an output shaft of a motor, and the motor is fixed on the inner wall of the bottom end of the cooling chamber.

Furthermore, both ends of the cam are rotatably connected with pulleys through rotating shafts.

Furthermore, a glass window is embedded in the top end of the cabinet door.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the invention can provide good sealing performance between the cabinet body and the cabinet door of the frequency conversion cabinet, thereby reducing dust entering the frequency conversion cabinet to corrode electrical components in the frequency conversion cabinet, thereby prolonging the service life of the electrical components, when the magnetic suction plate on the cabinet door is abutted against the magnetic suction lock inside the frequency conversion cabinet body through the matching of the cabinet door and the frequency conversion cabinet body, the electromagnet generates magnetism under the action of electromagnetic reaction and tightly sucks the magnetic suction plate on the cabinet door, thereby preventing the cabinet door from damaging the sealing performance thereof due to the influence of external factors, at the moment, the frequency conversion cabinet body is abutted against the shell of the cabinet door through the first sealing strip on the frequency conversion cabinet body, thereby preliminarily reducing the gap between the cabinet door and the frequency conversion cabinet body by utilizing the elasticity of the first sealing strip, and meanwhile, the cabinet door is embedded into the inner cavity for installing the electrical components on the frequency conversion cabinet body through the first convex plate on the frequency conversion cabinet body, the cabinet door is made of elastic materials of the second sealing ring, so that gaps between the cabinet door and the frequency conversion cabinet body are further reduced, and the frequency conversion cabinet body is sealed.

Secondly, the heat dissipation purpose can be achieved while the frequency conversion cabinet body is prevented from being provided with the heat dissipation holes, the refrigerant flows in the condenser and absorbs a large amount of heat through the heat exchange copper pipe, the condenser with the lowered temperature can be directly blown by the fan, and the electrical components with the heat dissipation amount in the frequency conversion cabinet body are cooled by blown cold air, so that the problem that the traditional frequency conversion cabinet body is cooled by adopting the heat dissipation fan, workers need to open the heat dissipation holes in the frequency conversion cabinet body, and the sealing performance of the frequency conversion cabinet body is reduced.

Thirdly, the cold air blown out by the fan can be uniformly distributed inside the frequency conversion cabinet body, the guide piece is driven to ascend and descend by abutting the cam with the guide piece, the guide piece is driven to angularly displace by being connected with the plurality of drainage pieces through the rotating shaft, and the cold air is uniformly distributed inside the frequency conversion cabinet body by guiding the drainage pieces by utilizing the angular displacement of the drainage pieces.

Drawings

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

FIG. 2 is a schematic structural diagram of a cabinet body and a cabinet door of the variable frequency cabinet of the invention;

FIG. 3 is a schematic view of the structure of the cabinet door of the present invention;

FIG. 4 is an enlarged view of the structure of area A of the present invention;

FIG. 5 is a schematic view of a hidden hinge according to the present invention;

FIG. 6 is a schematic structural view of a second fixing case and a first fixing case according to the present invention;

FIG. 7 is a schematic structural view of the temperature reduction chamber of the present invention;

fig. 8 is a schematic structural view of the wind-guiding frame of the present invention.

In the figure: 1. a frequency conversion cabinet body; 11. a first seal strip; 12. magnetically attracting the lock; 13. an electromagnet; 14. a cooling chamber; 141. a fan; 142. a condenser; 143. a wind-guiding frame; 144. a drainage sheet; 145. a guide piece; 146. a rotating wheel; 147. a cam; 1471. a rotating shaft; 1472. a first bevel gear; 1473. a pulley; 148. a motor; 1481. a second bevel gear; 15. an outdoor unit; 2. a cabinet door; 21. a first convex plate; 22. a second convex plate; 23. a second seal ring; 24. a magnetic attraction plate; 25. mounting grooves; 3. a hidden hinge; 31. a second stationary box; 32. a first hinge piece; 33. a second hinge piece; 34. a first stationary box; 35. organ type protective cover.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-3, the combined type high-sealing automatic frequency conversion cabinet of the invention comprises a frequency conversion cabinet body 1, wherein the frequency conversion cabinet body 1 is hinged with a cabinet door 2 through a hidden hinge 3, a first sealing strip 11 is bonded on one side surface of the frequency conversion cabinet body 1 close to the cabinet door 2, a magnetic lock 12 is fixed on the inner wall of one end of the frequency conversion cabinet body 1 close to the cabinet door 2, two electromagnets 13 are embedded inside the magnetic lock 12, a lacquer coil is wound around the outer peripheral surface of each electromagnet 13, a first convex plate 21 is arranged on one side surface of the cabinet door 2 close to the frequency conversion cabinet body 1, the first convex plate 21 is matched with an inner cavity for installing power supply elements on the cabinet door 2, a second convex plate 22 is arranged on one side surface of the first convex plate 21 far from the cabinet door 2, and a second sealing ring 23 is wound around the outer peripheral surface of the second convex plate 22, the second sealing ring 23 is adhered to the surface of one side, away from the cabinet door 2, of the first convex plate 21, a magnetic attraction plate 24 is embedded into the cabinet door 2, and the magnetic attraction plate 24 is magnetically connected with the electromagnet 13.

In the embodiment, as shown in fig. 1, a glass window 16 is embedded in the top end of the cabinet door 2, so that a worker can penetrate through the working condition inside the frequency conversion cabinet body 1 through the glass window 16 embedded in the cabinet door 2.

As shown in fig. 5 and 6, the hidden hinge 3 includes a first fixed box 34, the first fixed box 34 is fixed on the sidewall of the inverter cabinet body 1, the inside of the first fixed box 34 is rotatably connected with a first hinge plate 32 through a rotating shaft, one end of the first hinge plate 32, which is far away from the first fixed box 34, penetrates through the casing of a second hinge plate 33 and extends to the inside of the second fixed box 31 to be slidably connected with the inner wall of the second fixed box 31, one end of the second hinge plate 33, which is far away from the second fixed box 31, is slidably connected with the inner wall of the first fixed box 34, the second fixed box 31 is connected with the groove body of the mounting groove 25, the mounting groove 25 is opened on the casing at one end of the cabinet door 2, so that when the cabinet door 2 and the inverter cabinet body 1 rotate relatively, when cabinet door 2 drives the fixed box 31 of second of fixing on it and uses first fixed box 34 to rotate as the rotation axis, the one end of first hinge piece 32 on the fixed box 31 of second is when its inside is slided, the other end of first hinge piece 32 rotates in first fixed box 34 through the pivot, with this reason, at this moment, the one end of second hinge piece 33 rotates inside fixed box 31 of second through the pivot, the other end of second hinge piece 33 slides in the inside of first fixed box 34, make when rotating relatively between the frequency conversion cabinet body 1 and the cabinet door 2, prevent to cause the gap that leads to the fact between the frequency conversion cabinet body 1 and the cabinet door because of the pivot of traditional hinge when the closed frequency conversion cabinet body 1 of cabinet door 2, thereby further improve the leakproofness between the frequency conversion cabinet body 1 and the cabinet door 2.

As shown in fig. 4, the first fixed box 34 and the second fixed box 31 are connected by the bellows-type protective cover 35, and when the first fixed box 34 and the second fixed box 31 abut against each other through the cooperation of the bellows-type protective cover 35, the first fixed box 34 and the second fixed box 31, the second hinge piece 33 and the first hinge piece 32 in the first fixed box 34 and the second fixed box 31 are kept blocked by folding the bellows-type protective cover 35, so that the body damage caused by the accidental touch of fingers on the second hinge piece 33 and the first hinge piece 32 by workers is prevented.

As shown in fig. 7 and 8, a cooling chamber 14 is fixed on an inner wall of the inverter cabinet body 1, a fan 141 is fixed inside the cooling chamber 14, a condenser 142 is arranged on one side of the fan 141, the condenser 142 is fixed inside the cooling chamber 14, an input end of the condenser 142 sequentially penetrates through the cooling chamber 14 and a casing of the inverter cabinet body 1 to be connected with an outdoor unit 15, the outdoor unit 15 is fixed on a side wall of the inverter cabinet body 1, a refrigerant flows inside the condenser 142 and absorbs a large amount of heat through a heat exchange copper pipe, the condenser 142 with a lowered temperature is directly blown by the fan 141, electrical components dissipating heat in the inverter cabinet body 1 are cooled by blown cold air, and the conventional inverter cabinet body 1 is prevented from being cooled by a heat dissipation fan and a worker needs to open heat dissipation holes on the inverter cabinet body 1, so that the sealing performance of the cabinet body 1 of the frequency conversion cabinet is reduced, an induced draft frame 143 is embedded in one end of the temperature reduction chamber 14 far away from the fan 141, a plurality of guide pieces 144 are rotatably connected to the inside of the air guide frame 143 by a rotation shaft, one end of each guide piece 144 away from the air guide frame 143 is connected to a guide piece 145 by a rotation shaft, the bottom end of the guide piece 145 abuts against the cam 147, the cam 147 is fixed to one end of the rotary shaft 1471, both ends of the rotating shaft 1471 are connected to the inner wall of the bottom end of the temperature reduction chamber 14 through bearing seats, so that when the cam 147 rotates, the cam 147 is abutted against the guide piece 145, so as to drive the guide piece 145 to move up and down, since the guide piece 145 is connected to the plurality of drainage pieces 144 through the rotation shaft, the drainage pieces 144 are driven to perform angular displacement, and then the angular displacement of the drainage pieces 144 is utilized, so that the cool air is uniformly distributed inside the cabinet body 1 of the frequency conversion cabinet by the guidance of the diversion sheet 144.

As shown in fig. 8, the bottom end of the drainage sheet 144 is rotatably connected with a rotating wheel 146 through a rotating shaft, the rotating wheel 146 is abutted against the outer peripheral surface of the cam 147, and both ends of the cam 147 are rotatably connected with pulleys 1473 through rotating shafts, so that when the drainage sheet 144 is driven by the rotating cam 147 to move up and down, the drainage sheet 144 is abutted against the pulleys 1473 on the cam 147 through the rotating wheel 146 on the drainage sheet 144, and thus, the rotation of the rotating wheel 146 and the pulleys 1473 is utilized, so that dry friction between the cam 147 and the drainage sheet 144 is prevented, and further, the wear of the cam 147 and the drainage sheet 144 is reduced.

As shown in fig. 8, a first bevel gear 1472 is coaxially disposed on one side of the cam 147, the first bevel gear 1472 is engaged with a second bevel gear 1481, the second bevel gear 1481 is fixed to the outer circumferential surface of the output shaft of the motor 148, the motor 148 is fixed to the inner wall of the bottom end of the cooling chamber 14, and when the second bevel gear 1481 on the output shaft of the motor 148 rotates due to the engagement of the first bevel gear 1472 and the second bevel gear 1481, the second bevel gear 1481 is engaged with the first bevel gear 1472 on the rotating shaft 1471, so that the torque is transmitted to the rotating shaft 1471 and the cam 147 on the rotating shaft 1471 is driven to rotate.

The specific operation mode of the invention is as follows:

when the frequency conversion cabinet is used, a worker firstly utilizes the hidden hinge 3 to drive the cabinet door 2, so that the cabinet door 2 and the frequency conversion cabinet body 1 rotate relatively until the magnetic suction plate 24 on the cabinet door 2 is abutted with the magnetic suction lock 12 inside the frequency conversion cabinet body 1, at the moment, the electromagnet 13 in the magnetic suction lock 12 is electrified through the enameled wire ring on the peripheral surface of the electromagnet, so that the electromagnet 13 generates magnetism under the action of electromagnetic reaction, and tightly sucks the magnetic suction plate 24 on the cabinet door 2 to complete the closing of the frequency conversion cabinet body 1, at the moment, the frequency conversion cabinet body 1 is abutted with the shell of the cabinet door 2 through the first sealing strip 11 on the frequency conversion cabinet body, so that the gap between the cabinet door 2 and the frequency conversion cabinet body 1 is preliminarily reduced by utilizing the elasticity of the first sealing strip 11, meanwhile, the cabinet door 2 is embedded into the inner cavity for installing power supply elements on the frequency conversion cabinet body 1 through the first, make second flange 22 on the first flange 21 through the inner wall looks butt of second sealing washer 23 on it and the frequency conversion cabinet body 1 for cabinet door 2 further reduces the gap between its and the frequency conversion cabinet body 1 through the elasticity material of second sealing washer 23, reaches the sealed of the frequency conversion cabinet body 1.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. The combined high-sealing-performance automatic frequency conversion cabinet comprises a frequency conversion cabinet body (1), and is characterized in that the frequency conversion cabinet body (1) is hinged with a cabinet door (2) through a hidden hinge (3), a first sealing strip (11) is bonded on the surface of one side, close to the cabinet door (2), of the frequency conversion cabinet body (1), a magnetic attraction lock (12) is fixed on the inner wall of one end, close to the cabinet door (2), of the frequency conversion cabinet body (1), two electromagnets (13) are embedded into the magnetic attraction lock (12), and an enameled coil is arranged around the outer peripheral surface of each electromagnet (13);

cabinet door (2) are close to one side surface of the frequency conversion cabinet body (1) is equipped with first flange (21), first flange (21) with the inner chamber of the installation of power supply ware component agrees with on cabinet door (2) mutually, keep away from first flange (21) one side surface of cabinet door (2) is equipped with second flange (22), the outer peripheral face of second flange (22) encircles and is equipped with second sealing washer (23), second sealing washer (23) with first flange (21) are kept away from one side surface of cabinet door (2) bonds mutually, just it is equipped with magnetism suction disc (24) to embed in cabinet door (2), magnetism suction disc (24) with electro-magnet (13) magnetism is connected.

2. The combined high-tightness automatic frequency conversion cabinet according to claim 1, the hidden hinge (3) comprises a first fixed box (34), the first fixed box (34) is fixed on the side wall of the frequency conversion cabinet body (1), a first hinge plate (32) is rotatably connected inside the first fixed box (34) through a rotating shaft, one end of the first hinge piece (32) far away from the first fixed box (34) penetrates through the shell of the second hinge piece (33) and extends into the second fixed box (31) to be connected with the inner wall of the second fixed box (31) in a sliding way, one end of the second hinge piece (33) is connected with the inner wall of the second fixed box (31) through a rotating shaft, one end of the second hinge piece (33) far away from the second fixed box (31) is connected with the inner wall of the first fixed box (34) in a sliding way;

the second fixing box (31) is connected with a groove body of the mounting groove (25), and the mounting groove (25) is arranged on the shell body at one end of the cabinet door (2).

3. The combined high-sealing automatic frequency conversion cabinet according to claim 2, characterized in that the first fixed box (34) and the second fixed box (31) are connected through an organ type protective cover (35).

4. The combined type high-sealing automatic frequency conversion cabinet according to claim 1, wherein a temperature reduction chamber (14) is fixed on an inner wall of the frequency conversion cabinet body (1), a fan (141) is fixed inside the temperature reduction chamber (14), a condenser (142) is arranged on one side of the fan (141), the condenser (142) is fixed inside the temperature reduction chamber (14), an input end of the condenser (142) sequentially penetrates through the temperature reduction chamber (14) and a shell of the frequency conversion cabinet body (1) to be connected with an outdoor unit (15), and the outdoor unit (15) is fixed on a side wall of the frequency conversion cabinet body (1).

5. The combined type automatic frequency conversion cabinet with high sealing performance according to claim 4, wherein an induced draft frame (143) is embedded in one end of the cooling chamber (14) far away from the fan (141), and a plurality of induced draft pieces (144) are rotatably connected to the interior of the induced draft frame (143) through a rotating shaft.

6. The combined type automatic frequency conversion cabinet with high sealing performance according to claim 5, wherein one end of each of the guiding sheets (144) far away from the air guiding frame (143) is connected with a guiding sheet (145) through a rotating shaft, the bottom ends of the guiding sheets (145) are abutted against a cam (147), the cam (147) is fixed at one end of a rotating shaft (1471), and both ends of the rotating shaft (1471) are connected with the inner wall of the bottom end of the cooling chamber (14) through bearing seats.

7. The combined type automatic frequency conversion cabinet with high sealing performance according to claim 6, wherein a rotating wheel (146) is rotatably connected to the bottom end of the diversion sheet (144) through a rotating shaft, and the rotating wheel (146) abuts against the outer peripheral surface of the cam (147).

8. The combined type automatic frequency conversion cabinet with high sealing performance according to claim 7, wherein a first bevel gear (1472) is coaxially arranged on one side of the cam (147), the first bevel gear (1472) is meshed with a second bevel gear (1481), the second bevel gear (1481) is fixed on the outer peripheral surface of an output shaft of a motor (148), and the motor (148) is fixed on the inner wall of the bottom end of the cooling chamber (14).

9. The combined type automatic frequency conversion cabinet with high sealing performance according to claim 1, wherein two ends of the cam (147) are rotatably connected with pulleys (1473) through rotating shafts.

10. The combined high-tightness automated frequency conversion cabinet according to claim 1, characterized in that a glass window (16) is embedded in the top end of the cabinet door (2).