A three-proof fully enclosed frequency converter

Abstract

The present invention discloses a three-proof fully enclosed frequency converter, which relates to the technical field of frequency converters and solves the problems that when the three-proof fully enclosed frequency converter is in use, the heat dissipation efficiency of the frequency converter is often reduced due to the accumulation of dust entering through the heat dissipation holes, and the sealed housing is difficult to open, resulting in difficulty in maintaining or replacing the frequency converter. A three-proof fully enclosed frequency converter includes a sealed outer cover, and a sealed housing is movably installed at the rear side of the sealed outer cover. A frequency converter body is movably installed between the sealed outer cover and the sealed housing. Through the cooperation of the sealed outer cover and the sealed housing, the frequency converter body can be installed on the front surface of the sealed housing through an assembly plate, so that the frequency converter body can be installed inside the sealed outer cover and the sealed housing. Furthermore, the device can protect the frequency converter body through the sealed outer cover and the sealed housing, forming a sealed space to protect the frequency converter body.

Description

Technical Field

[0001] The present invention relates to the technical field of frequency converters, and particularly to a three-proof fully enclosed frequency converter. Background Technique

[0002] A frequency converter is a power control device that applies frequency conversion technology and microelectronics technology to control an AC motor by changing the frequency of the motor's working power supply. A fully enclosed frequency converter is one type of frequency converter;

[0003] A fully enclosed frequency converter is one of many types of frequency converters, that is, it adopts a fully sealed structure. The exterior is based on an iron shell, with a sealing process encapsulation and a three-proof paint for protecting the circuit board components.

[0004] However, when the existing three-proof fully enclosed frequency converter is in use, the heat dissipation efficiency of the frequency converter often decreases due to dust accumulation entering through the heat dissipation holes, and the sealed outer shell is difficult to open, resulting in difficulties in maintaining or replacing the frequency converter; Therefore, it does not meet the existing requirements, and for this reason, we propose a three-proof fully enclosed frequency converter. Summary of the Invention

[0005] The purpose of the present invention is to provide a three-proof fully enclosed frequency converter to solve the problems mentioned in the above background technique, that is, when the three-proof fully enclosed frequency converter is in use, the heat dissipation efficiency of the frequency converter often decreases due to dust accumulation entering through the heat dissipation holes, and the sealed outer shell is difficult to open, resulting in difficulties in maintaining or replacing the frequency converter.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A three-proof fully enclosed frequency converter, including a sealed outer cover, a sealed outer shell is movably installed at the rear of the sealed outer cover, a frequency converter body is movably installed between the sealed outer cover and the sealed outer shell, a control console is provided on the outer surface of the frequency converter body, a plurality of mounting grooves are provided on both side surfaces of the control console, and the control console movably penetrates the surface of the sealed outer cover and extends to the outside.

[0007] Preferably, three arc-shaped grooves are provided on both the top and bottom surfaces of the sealed outer shell, spring grooves are provided inside the arc-shaped grooves, compression springs are movably installed inside the spring grooves, spring buckles are movably installed inside the spring grooves, three movable inclined grooves are provided at the positions near the top and bottom of the rear surface of the sealed outer cover, the spring buckles are movably snapped into the inside of the movable inclined grooves, and fixed plugs are fixedly installed on the rear surfaces of the spring buckles.

[0008] Preferably, L-shaped movable rods are movably installed inside the arc-shaped grooves. Fixed blocks are fixedly installed near both sides at the top and bottom of the sealed outer shell. Rotating shafts are movably installed inside the L-shaped movable rods. Both ends of the rotating shafts are movably clamped inside the fixed blocks. Waist-shaped holes are provided on the surfaces of the L-shaped movable rods. Connecting rods are movably installed on the surfaces of the fixed plugs, and the connecting rods are movably clamped inside the waist-shaped holes.

[0009] Preferably, limiting arc grooves are provided on the rear side surfaces of the fixed blocks. Fixed block inner grooves are provided inside the limiting arc grooves. Tensile springs are movably installed inside the fixed block inner grooves. Limiting blocks are movably installed inside the fixed block inner grooves. The limiting blocks are movably clamped inside the limiting arc grooves. Pulling rods are fixedly installed at the bottom ends of the limiting blocks. Pulling grooves are provided on the inner sides of the fixed block inner grooves. The pulling rods are movably clamped inside the pulling grooves. Limiting connecting rods are movably installed on the outer side surfaces of the L-shaped movable rods, and the limiting connecting rods are movably clamped inside the limiting arc grooves.

[0010] Preferably, a heat dissipation frame is movably installed on the rear side surface of the frequency converter body. Assembly plates are fixedly installed on both side surfaces of the heat dissipation frame. Two assembly holes are provided on the surfaces of the assembly plates. The assembly plates are threadedly connected to the sealed outer shell through bolts.

[0011] Preferably, a dust filtering plate is movably installed at a position near the upper part inside the sealed outer cover and the sealed outer shell. The dust filtering plate is in a triangular pyramid shape. An installation plate is fixedly installed on the inner side surface of the sealed outer shell. The rear side of the dust filtering plate is movably clamped on the top surface of the installation plate.

[0012] Preferably, a plurality of installation rods are provided on the front side surface of the sealed outer cover, and the installation rods are movably clamped inside the installation grooves.

[0013] Preferably, a plurality of ventilation holes are provided on the top surface of the sealed outer shell and the top surface of the console.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Through the cooperation of the airtight outer cover and the airtight housing, the inverter body can be installed on the front surface of the airtight housing through the mounting plate, so that the inverter body can be installed inside the airtight outer cover and the airtight housing. Furthermore, the device can protect the inverter body through the airtight outer cover and the airtight housing, forming an airtight space to protect the inverter body. Through the setting of the ash filter plate, the device can block the dust entering the inside of the airtight outer cover and the airtight housing through the ventilation holes with the ash filter plate, so that the dust can be concentrated at both ends of the ash filter plate through the inclined surface on the surface of the ash filter plate. While facilitating cleaning, it prevents the dust from falling onto the surface of the console or the inverter body and affecting the heat dissipation efficiency of the device. Through the cooperation of the mounting plate and the ash filter plate, when the device is in use, the ash filter plate can be installed on the surface of the mounting plate, which facilitates the disassembly and cleaning of the ash filter plate;

[0016] 2. Through the cooperation of the spring buckle and the movable inclined groove, when the device is in use and it is necessary to remove the airtight outer cover from the surface of the airtight housing, the L-shaped movable rod can be rotated first, making it rotate ninety degrees towards the airtight outer cover, thereby driving the connecting rod to rotate. At this time, the connecting rod is stuck inside the waist-shaped hole, and the connecting rod will move towards the inner side of the waist-shaped hole to reduce its own rotation angle, thereby driving the fixed plug to be pulled out into the arc-shaped groove, and then pulling the spring buckle out of the movable inclined groove, so that the airtight outer cover can be directly pulled outwards, which facilitates the disassembly and assembly of the airtight outer cover and the airtight housing. Through the cooperation of the fixed block and the limiting arc groove, when rotating the L-shaped movable rod, first press the lever downwards, making it drive the limiting block to be pressed down from the inner groove of the fixed block, so that the limiting connecting rod on the surface of the L-shaped movable rod can be rotated into the limiting arc groove. Release the lever, and the limiting block pops up upwards under the elastic potential energy of the tension spring and is stuck into the limiting arc groove, thereby limiting the limiting connecting rod and further limiting the L-shaped movable rod, enabling personnel to conveniently remove the airtight outer cover and preventing the L-shaped movable rod from rotating back to its original position due to the elastic potential energy of the compression spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the whole of the present invention;

[0018] Figure 2 is the partial structural schematic diagram of the inverter body of the present invention;

[0019] Figure 3 is the front sectional view of the whole of the present invention;

[0020] Figure 4 is the side sectional view of the whole of the present invention;

[0021] Figure 5 is the partial structural schematic diagram of part A of the present invention;

[0022] Figure 6Schematic diagram of the partial structure of Part B of the present invention.

[0023] In the figure: 1, airtight outer cover; 2, control console; 3, inverter body; 4, heat dissipation rack; 5, installation groove; 6, assembly plate; 7, ventilation hole; 8, assembly hole; 9, mounting plate; 10, dust filter plate; 11, airtight housing; 12, arc groove; 13, L-shaped movable rod; 14, waist-shaped hole; 15, limit connecting rod; 16, rotating shaft; 17, connecting rod; 18, fixed plug; 19, spring groove; 20, compression spring; 21, spring buckle; 22, movable inclined groove; 23, fixed block; 24, limit arc groove; 25, inner groove of the fixed block; 26, tension spring; 27, limit block; 28, lever; 29, lever groove. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1 to 6 , an embodiment provided by the present invention: a three-proof fully enclosed inverter, including an airtight outer cover 1, an airtight housing 11 is movably installed on the rear side of the airtight outer cover 1, an inverter body 3 is movably installed between the airtight outer cover 1 and the airtight housing 11, a control console 2 is provided on the outer surface of the inverter body 3, a plurality of installation grooves 5 are provided on both side surfaces of the control console 2, and the control console 2 movably penetrates the surface of the airtight outer cover 1 and extends to the outside.

[0026] By adopting the above technical solution, through the cooperation of the airtight outer cover 1 and the airtight housing 11, the inverter body 3 can be installed on the front side surface of the airtight housing 11 through the assembly plate 6, so that the inverter body 3 can be installed inside the airtight outer cover 1 and the airtight housing 11, and further the device can protect the inverter body 3 through the airtight outer cover 1 and the airtight housing 11, forming an airtight space, thereby protecting the inverter body 3.

[0027] Further, three arc grooves 12 are provided on both the top and bottom surfaces of the airtight housing 11, spring grooves 19 are provided inside the arc grooves 12, compression springs 20 are movably installed inside the spring grooves 19, spring buckles 21 are movably installed inside the spring grooves 19, and three movable inclined grooves 22 are provided at positions near the top and bottom of the rear side surface of the airtight outer cover 1, the spring buckles 21 are movably clamped into the inside of the movable inclined grooves 22, and fixed plugs 18 are fixedly installed on the rear side surfaces of the spring buckles 21.

[0028] By adopting the above technical solution, through the cooperation of the spring buckle 21 and the movable chute 22, when the device is in use, when it is necessary to remove the sealed outer cover 1 from the surface of the sealed outer shell 11, the L-shaped movable rod 13 can be rotated first, making it rotate ninety degrees towards the sealed outer cover 1, thereby driving the connecting rod 17 to rotate. At this time, the connecting rod 17 is stuck inside the waist-shaped hole 14, and the connecting rod 17 will move towards the inner side of the waist-shaped hole 14 to reduce its own rotation angle, thereby driving the fixed plug 18 to be pulled out into the arc-shaped groove 12, and then pulling the spring buckle 21 out of the movable chute 22, so that the sealed outer cover 1 can be directly pulled outwards, facilitating the disassembly and assembly of the sealed outer cover 1 and the sealed outer shell 11.

[0029] Furthermore, L-shaped movable rods 13 are movably installed inside the arc-shaped grooves 12. Fixed blocks 23 are fixedly installed at positions near both sides of the top and bottom ends of the sealed outer shell 11. Rotating shafts 16 are movably installed inside the L-shaped movable rods 13. Both ends of the rotating shafts 16 are movably clamped into the fixed blocks 23. Waist-shaped holes 14 are provided on the surfaces of the L-shaped movable rods 13. Connecting rods 17 are movably installed on the surface of the fixed plug 18, and the connecting rods 17 are movably clamped into the waist-shaped holes 14.

[0030] Furthermore, limiting arc grooves 24 are provided on the rear side surfaces of the fixed blocks 23. Fixed block inner grooves 25 are provided inside the limiting arc grooves 24. Tensile springs 26 are movably installed inside the fixed block inner grooves 25. Limiting blocks 27 are movably installed inside the fixed block inner grooves 25. The limiting blocks 27 are movably clamped into the limiting arc grooves 24. Pulling rods 28 are fixedly installed at the bottom ends of the limiting blocks 27. Pulling grooves 29 are provided inside the inner sides of the fixed block inner grooves 25. The pulling rods 28 are movably clamped into the pulling grooves 29. Limiting connecting rods 15 are movably installed on the outer side surfaces of the L-shaped movable rods 13, and the limiting connecting rods 15 are movably clamped into the limiting arc grooves 24.

[0031] By adopting the above technical solution, through the cooperation of the fixed block 23 and the limiting arc groove 24, when the L-shaped movable rod 13 is rotated, the pulling rod 28 is first pressed downwards, making it drive the limiting block 27 to be pressed down from the inside of the fixed block inner groove 25, so that the limiting connecting rod 15 on the surface of the L-shaped movable rod 13 can be rotated into the limiting arc groove 24. When the pulling rod 28 is released, the limiting block 27 pops upwards under the elastic potential energy of the tensile spring 26 and is clamped into the limiting arc groove 24, thereby limiting the limiting connecting rod 15, and further limiting the L-shaped movable rod 13, enabling personnel to conveniently remove the sealed outer cover 1 and preventing the L-shaped movable rod 13 from rotating back to its original position due to the elastic potential energy of the compression spring 20.

[0032] Furthermore, a heat dissipation rack 4 is movably installed on the rear side surface of the frequency converter body 3. Assembly plates 6 are fixedly installed on both side surfaces of the heat dissipation rack 4. Two assembly holes 8 are provided on the surfaces of the assembly plates 6. The assembly plates 6 are threadedly connected to the sealed housing 11 through bolts.

[0033] Furthermore, a dust filter plate 10 is movably installed at a position near the upper part inside the sealed outer cover 1 and the sealed housing 11. The dust filter plate 10 is in the shape of a triangular pyramid. An installation plate 9 is fixedly installed on the inner side surface of the sealed housing 11. The rear side of the dust filter plate 10 is movably stuck on the top surface of the installation plate 9.

[0034] By adopting the above technical solution, through the setting of the dust filter plate 10, the device can block the dust entering the inside of the sealed outer cover 1 and the sealed housing 11 through the ventilation holes 7 by the dust filter plate 10, so that the dust can be concentrated at both ends of the dust filter plate 10 through the inclined surface on the surface of the dust filter plate 10. While facilitating cleaning, it prevents the dust from falling onto the surface of the control console 2 or the frequency converter body 3 and affecting the heat dissipation efficiency of the device. Through the cooperation of the installation plate 9 and the dust filter plate 10, when the device is in use, the dust filter plate 10 can be installed on the surface of the installation plate 9, thereby facilitating the disassembly and cleaning of the dust filter plate 10.

[0035] Furthermore, a plurality of installation rods are provided on the front side surface of the sealed outer cover 1, and the installation rods are all movably inserted into the inside of the installation grooves 5.

[0036] Furthermore, a plurality of ventilation holes 7 are provided on the top surface of the sealed housing 11 and the top surface of the control console 2.

[0037] Working principle: When in use, through the cooperation of the sealed outer cover 1 and the sealed housing 11, the frequency converter body 3 can be installed on the front side surface of the sealed housing 1 through the assembly plate 6, so that the frequency converter body 3 can be installed inside the sealed outer cover 1 and the sealed housing 11. Furthermore, the device can protect the frequency converter body 3 through the sealed outer cover 1 and the sealed housing 11 to form a sealed space, thereby protecting the frequency converter body 3. Through the setting of the dust filter plate 10, the device can block the dust entering the inside of the sealed outer cover 1 and the sealed housing 11 through the ventilation holes 7 by the dust filter plate 10, so that the dust can be concentrated at both ends of the dust filter plate 10 through the inclined surface on the surface of the dust filter plate 10. While facilitating cleaning, it prevents the dust from falling onto the surface of the control console 2 or the frequency converter body 3 and affecting the heat dissipation efficiency of the device. Through the cooperation of the installation plate 9 and the dust filter plate 10, when the device is in use, the dust filter plate 10 can be installed on the surface of the installation plate 9, thereby facilitating the disassembly and cleaning of the dust filter plate 10.

[0038] Through the cooperation of the spring buckle 21 and the movable chute 22, when the device is in use, when it is necessary to remove the sealed outer cover 1 from the surface of the sealed housing 11, the L-shaped movable rod 13 can be rotated first, making it rotate ninety degrees towards the sealed outer cover 1, thereby driving the connecting rod 17 to rotate. At this time, the connecting rod 17 is stuck inside the waist-shaped hole 14, and the connecting rod 17 will move towards the inner side of the waist-shaped hole 14 to reduce its own rotation angle, thereby driving the fixed plug 18 to be pulled out into the arc-shaped groove 12, and then pulling the spring buckle 21 out of the movable chute 22, so that the sealed outer cover 1 can be directly pulled outwards, facilitating the disassembly and assembly of the sealed outer cover 1 and the sealed housing 11. Through the cooperation of the fixed block 23 and the limit arc-shaped groove 24, when the L-shaped movable rod 13 is rotated, the lever 28 is first pressed downwards, driving the limit block 27 to be pressed down from the inner groove 25 of the fixed block, so that the limit connecting rod 15 on the surface of the L-shaped movable rod 13 can be rotated into the limit arc-shaped groove 24. After releasing the lever 28, the limit block 27 pops up upwards due to the elastic potential energy of the tension spring 26 and is stuck into the limit arc-shaped groove 24, thereby limiting the limit connecting rod 15, and further limiting the L-shaped movable rod 13, enabling personnel to conveniently remove the sealed outer cover 1 and preventing the L-shaped movable rod 13 from rotating back to its original position due to the elastic potential energy of the compression spring 20.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A three-proof fully enclosed frequency converter, comprising a sealed outer cover (1), characterized in that: A sealed outer cover (1) is movably installed at the rear side, a sealed housing (11) is movably installed between the sealed outer cover (1) and the sealed housing (11), a frequency converter body (3) is provided on the outer surface of the frequency converter body (3), a control console (2) is provided on both side surfaces of the control console (2), and a plurality of mounting grooves (5) are provided on both side surfaces of the control console (2). The control console (2) movably penetrates through the surface of the sealed outer cover (1) and extends to the outside; Three arc-shaped grooves (12) are provided on both the top and bottom surfaces of the sealed housing (11). Spring grooves (19) are provided inside the arc-shaped grooves (12). Compression springs (20) are movably installed inside the spring grooves (19). Spring buckles (21) are movably installed inside the spring grooves (19). Three movable inclined grooves (22) are provided at positions near the top and bottom of the rear side surface of the sealed outer cover (1). The spring buckles (21) are movably clamped into the inside of the movable inclined grooves (22). Fixed plugs (18) are fixedly installed on the rear side surfaces of the spring buckles (21); L-shaped movable rods (13) are movably installed inside the arc-shaped grooves (12). Fixed blocks (23) are fixedly installed at positions near both sides of the top and bottom of the sealed housing (11). Rotating shafts (16) are movably installed inside the L-shaped movable rods (13). Both ends of the rotating shafts (16) are movably clamped into the inside of the fixed blocks (23). Waist holes (14) are provided on the surfaces of the L-shaped movable rods (13). Connecting rods (17) are movably installed on the surfaces of the fixed plugs (18). The connecting rods (17) are movably clamped into the inside of the waist holes (14); Limiting arc grooves (24) are provided on the rear side surfaces of the fixed blocks (23). Fixed block inner grooves (25) are provided inside the limiting arc grooves (24). Tensile springs (26) are movably installed inside the fixed block inner grooves (25). Limiting blocks (27) are movably installed inside the fixed block inner grooves (25). The limiting blocks (27) are movably clamped into the inside of the limiting arc grooves (24). Pulling rods (28) are fixedly installed at the bottom ends of the limiting blocks (27). Pulling grooves (29) are provided on the inner sides of the fixed block inner grooves (25). The pulling rods (28) are movably clamped into the inside of the pulling grooves (29). Limiting connecting rods (15) are movably installed on the outer side surfaces of the L-shaped movable rods (13). The limiting connecting rods (15) are movably clamped into the inside of the limiting arc grooves (24); A dust filtering plate (10) is movably installed at a position near the upper part inside the sealed outer cover (1) and the sealed housing (11). The dust filtering plate (10) is in a triangular pyramid shape. A mounting plate (9) is fixedly installed on the inner side surface of the sealed housing (11). The rear side of the dust filtering plate (10) is movably clamped on the top surface of the mounting plate (9).

2. A three-proof fully enclosed inverter according to claim 1, characterized in that: A heat dissipation frame (4) is movably installed on the rear surface of the frequency converter body (3). Assembly plates (6) are fixedly installed on both side surfaces of the heat dissipation frame (4). Two assembly holes (8) are provided on the surfaces of the assembly plates (6). The assembly plates (6) are threadedly connected to the sealed housing (11) through bolts.

3. The three-proof fully enclosed inverter according to claim 1 is characterized in that: A plurality of mounting rods are provided on the front surface of the sealed outer cover (1), and the mounting rods are all movably snapped into the interior of the mounting grooves (5).

4. The triple-proof fully enclosed frequency converter according to claim 1, wherein: A plurality of ventilation holes (7) are provided on the top surface of the sealed housing (11) and the top surface of the console (2).

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