High-voltage frequency converter with dustproof function and convenient disassembly

Abstract

The utility model discloses a kind of high voltage frequency converter with dustproof function convenient to disassemble, belong to frequency converter technical field, including transformer body, the transformer body both sides are fixedly nested air inlet window, air inlet window inner cavity outer wall is detachably connected with temperature control type sealed louvre, air inlet window inner cavity and located temperature control type sealed louvre inside is equipped with assembly slot, the dustproof assembly of quick-replaceable filter dust structure is slidably connected in the assembly slot inner cavity, the air inlet window top end of air inlet window upper portion of assembly slot opening is equipped with the limiting component that realizes the quick disassembly of dustproof assembly;The utility model can realize the quick assembly of dust screen, dust screen can be disassembled and replaced or cleaned without tool, reduce downtime and material waste, while dustproof assembly and air inlet window can be quickly disassembled, reduce maintenance cleaning difficulty, effectively improve the convenience and practicality of use.

Description

Technical Field

[0001] This utility model belongs to the field of frequency converter technology, specifically relating to a high-voltage frequency converter with dustproof function that is easy to disassemble. Background Technology

[0002] A high-voltage frequency converter is a power electronic device that can convert high-voltage AC power of fixed frequency into high-voltage AC power with adjustable frequency and voltage to achieve precise adjustment of the speed of high-voltage AC motors, thereby achieving energy saving and production process optimization. It also has high-voltage adaptability, multiple protection and control functions, and is widely used in power electronic equipment for high-voltage high-power motor drive equipment in the industrial field.

[0003] Existing high-voltage frequency converters require heat dissipation windows and cooling fans on the main body for efficient heat dissipation. To prevent dust from entering the machine, dust filters are usually installed at the ventilation openings of the heat dissipation windows to intercept dust. For ease of installation, the dust filters are usually equipped with mounting frames around the main body of the filter, which facilitates the installation of the dust filters and the mounting structure on the air intake window of the high-voltage frequency converter. However, the dust filters and mounting frames on the market are usually rigidly fixed together. When the filter is damaged later, it cannot be replaced separately. Instead, the dust filters and mounting frames must be replaced as a whole, which not only increases maintenance costs but also wastes materials.

[0004] This phenomenon has become a problem that urgently needs to be solved by those in the field. To address this issue, we propose a high-voltage frequency converter with dustproof function that is easy to disassemble. Utility Model Content

[0005] The purpose of this invention is to provide a high-voltage frequency converter with dustproof function that is easy to disassemble, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-voltage frequency converter with dustproof function that is easy to disassemble, including a transformer body, with air inlet windows fixedly nested on both sides of the transformer body, and a temperature-controlled sealed louver detachably connected to the outer wall of the inner cavity of the air inlet window, and an assembly groove is provided in the inner cavity of the air inlet window and inside the temperature-controlled sealed louver, and a dustproof component with a quick-replaceable dust filter structure is slidably engaged in the inner cavity of the assembly groove, and a limiting component is provided at the top of the air inlet window above the opening of the assembly groove to realize the quick disassembly and assembly of the dustproof component.

[0007] This utility model further describes that the dustproof component includes a first dustproof frame, a second dustproof frame, elastic buckles, a nesting groove, a nesting rod, a dustproof net, and buckle holes. The first dustproof frame and the second dustproof frame are connected on one side by a hinge, and the first dustproof frame and the second dustproof frame are snapped together and slidably disposed in the inner cavity of the assembly groove. A nesting groove is provided on the inner side of the second dustproof frame, and a nesting rod is fixedly connected to each of the four corners of the inner cavity of the nesting groove. A dustproof net is provided in the inner cavity of the nesting groove, and a nesting rod is fitted at each of the four corners of the dustproof net. An elastic buckle is detachably connected to one side of the first dustproof frame, and there are multiple elastic buckles. Buckle holes are provided on the second dustproof frame at positions corresponding to the elastic buckles.

[0008] The present invention further explains that a sealing gasket adapted to the nesting groove is fixedly connected to the inner side wall of the first dustproof frame, and a sleeve hole adapted to the nesting rod is opened at each of the four corners of the sealing gasket.

[0009] The present invention further describes that the limiting component includes an assembly hole, a connecting rod, a pull end, a spring, and a snap-fit ​​connector. The assembly hole is vertically provided at the top of the air intake window above the assembly slot opening. The connecting rod is vertically slidably provided in the inner cavity of the assembly hole, and the connecting rod passes through the assembly hole and extends to the top of the air intake window. The pull end is fixedly connected to the top of the connecting rod, and the snap-fit ​​connector is fixedly connected to the bottom of the connecting rod. A spring is fixedly connected to the surface of the connecting rod in the inner cavity of the assembly hole, and the two ends of the spring abut against the top of the inner cavity of the assembly hole and the back of the snap-fit ​​connector, respectively.

[0010] The present invention further explains that the top of the first dustproof frame and the second dustproof frame and the corresponding position of the card connector are provided with limiting holes adapted to the card connector.

[0011] The present invention further illustrates that a handle is fixedly connected to the center position of the outer side wall of the first dustproof frame and the second dustproof frame.

[0012] The present invention further describes that the transformer body has an exhaust hole at the top, a dustproof top cover is detachably connected above the exhaust hole, an axial flow fan is installed at the center of the inner cavity of the exhaust hole, and a dustproof plate is detachably connected to the top of the inner cavity of the exhaust hole.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,

[0014] (1) By setting up a first dustproof frame, a second dustproof frame, a sealing gasket, a sleeve hole, an elastic buckle, a nesting groove, a nesting rod, a dustproof net, and a buckle hole that work together, during installation, the dustproof net is fitted around the nesting rod with the nesting groove, and then the first dustproof frame and the second dustproof frame are rotated and locked together by a hinge connection. The two are then fixed together by the snapping of the elastic buckle and the buckle hole. During fixing, the sealing gasket and the nesting groove are used to squeeze the edge of the dustproof net, which can not only further tighten the edge of the dustproof net and prevent it from loosening and shifting, but also block dust from seeping in from the edge gaps of the net body by tightly fitting together, thus improving the overall dustproof effect. When disassembling and replacing, simply loosen the elastic buckle, flip open the dustproof frame, and you can take out the old net and put on the new net. No tools are needed, making the operation convenient. It does not require replacing the entire dustproof structure, which not only effectively shortens the replacement time and reduces the equipment downtime caused by maintenance, but also avoids material waste, reduces maintenance costs, and effectively improves the convenience and practicality of use.

[0015] (2) By setting up the assembly hole, connecting rod, hand pull end, spring, snap connector and limiting snap hole opened on the upper side of the dustproof component, when the dustproof component is installed into the air intake window through the assembly groove, the snap connector is pushed by the spring and snapped into the limiting snap hole above the dustproof component to limit it, so that the dustproof component can be stably fixed in the air intake window, and thus can effectively prevent dust when the high voltage frequency converter is used. When disassembling, simply pull the connecting rod upward by the hand pull end to drive the snap connector out of the limiting snap hole of the dustproof component and retract into the assembly hole. At this time, the dustproof component can be quickly removed from the air intake window by pulling the handle outward, which facilitates its inspection and replacement, further reduces the difficulty of later maintenance and cleaning, and further improves the convenience of use. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partially unfolded structural schematic diagram of the present invention;

[0019] Figure 3 This is a structural schematic diagram of the cross-sectional view of the air intake window of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the present invention, shown in enlarged view A.

[0021] Figure 5This is a schematic diagram of the unfolded structure of the filter assembly of this utility model.

[0022] In the diagram: 1. Transformer body; 2. Dustproof top cover; 3. Air inlet window; 4. Temperature-controlled sealed louver; 5. Assembly slot; 6. Dustproof component; 7. Exhaust port; 8. Axial flow fan; 9. Dustproof plate; 10. Limiting hole; 11. Connecting rod; 12. Hand pull end; 13. Spring; 14. Clip connector; 15. Assembly hole; 601. First dustproof frame; 602. Second dustproof frame; 603. Sealing gasket; 604. Sleeve hole; 605. Elastic buckle; 606. Nesting slot; 607. Nesting rod; 608. Dustproof net; 609. Buckle hole. Detailed Implementation

[0023] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a high-voltage frequency converter with dustproof function that is easy to disassemble, including a transformer body 1, with air inlets 3 fixedly nested on both sides of the transformer body 1. A temperature-controlled sealed louver 4 is detachably connected to the outer wall of the inner cavity of the air inlet 3. An assembly groove 5 is provided inside the air inlet 3 and inside the temperature-controlled sealed louver 4. A dustproof component 6 with a quickly replaceable dust filter structure is slidably engaged inside the assembly groove 5. A limiting component is provided at the top of the air inlet 3 above the opening of the assembly groove 5 to enable quick disassembly and assembly of the dustproof component 6; (temperature-controlled sealed louver 4...) The louver 4 detects the temperature of the transformer body 1 through an internal temperature sensor, triggering the drive mechanism to open the louvers when the temperature reaches a preset threshold to facilitate heat dissipation. When the temperature drops to the lower limit or the equipment stops running, the louvers close and block impurities from entering through a sealing structure, achieving intelligent control of "opening and closing on demand" (this technology is existing technology and will not be described in detail here). The temperature-controlled sealed louver 4 can close the air intake window 3 when the internal temperature of the frequency converter is low, thereby avoiding the exchange of air between the inside and outside. This can not only prevent dust accumulation on the surface of the dustproof structure, but also improve the dustproof effect.

[0025] The dust removal and dustproof component 6 includes a first dustproof frame 601, a second dustproof frame 602, elastic buckles 605, a nesting groove 606, a nesting rod 607, a dustproof net 608, and buckle holes 609. The first dustproof frame 601 and the second dustproof frame 602 are connected by a hinge on one side. The first dustproof frame 601 and the second dustproof frame 602 are snapped together and slidably disposed within the assembly groove 5. A nesting groove 606 is provided inside the second dustproof frame 602. Nesting rods 607 are fixedly connected to the corners of the nesting groove 606. A dustproof net 608 is provided inside the nesting groove 606, and the corners of the dustproof net 608 are fitted onto the nesting rods 607. Elastic buckles 605 are detachably connected to one side of the first dustproof frame 601, and there are multiple elastic buckles 605. The second dustproof frame 602 and the elastic buckle 605 are connected together. 05. Each corresponding position is provided with a snap-fit ​​hole 609. The inner side wall of the first dustproof frame 601 is fixedly connected with a sealing gasket 603 that matches the nesting groove 606. The corners of the sealing gasket 603 are provided with sleeve holes 604 that match the nesting rod 607. Through the hinge connection between the first dustproof frame 601 and the second dustproof frame 602, the snap-fit ​​of the elastic buckle 605 and the snap-fit ​​hole 609, and the precise positioning of the dustproof net 608 by the nesting rod 607, the dustproof net 608 can be installed and fixed quickly. At the same time, the sealing gasket 603 and the nesting groove 606 can be squeezed to achieve a tight seal, effectively preventing dust from seeping in from the edge gaps. At the same time, it can be easily disassembled by reverse operation, making it easy to replace the dustproof net 608 separately without replacing the whole thing, effectively reducing maintenance costs and operation difficulty.

[0026] The limiting assembly includes a mounting hole 15, a connecting rod 11, a pull end 12, a spring 13, and a snap-fit ​​connector 14. A mounting hole 15 is vertically provided at the top of the air intake window 3 above the opening of the mounting groove 5. A connecting rod 11 is vertically slidably mounted inside the mounting hole 15, extending through the mounting hole 15 and reaching the top of the air intake window 3. A pull end 12 is fixedly connected to the top of the connecting rod 11, and a snap-fit ​​connector 14 is fixedly connected to the bottom of the connecting rod 11. A spring 13 is fixedly connected to the surface of the connecting rod 11 inside the mounting hole 15, with both ends of the spring 13 abutting against the top of the inner cavity of the mounting hole 15 and the back of the snap-fit ​​connector 14, respectively. The first dustproof frame 601 and the second... A limiting hole 10 adapted to the clamp connector 14 is provided at the top of the dustproof frame 602 and at the position corresponding to the clamp connector 14. A handle is fixedly connected to the center of the outer side wall of the first dustproof frame 601 and the second dustproof frame 602. The clamp connector 14 is automatically engaged with the limiting hole 10 at the top of the dustproof component 6 by the spring 13, which can quickly and firmly fix the dustproof component 6 and prevent it from shifting due to vibration during equipment operation. The limiting can be easily released by pulling the connecting rod 11 with the hand pull end 12. With the handle, the dustproof component 6 can be quickly pulled out, which effectively improves the convenience of disassembly and assembly of the dustproof component 6, reduces the labor intensity of maintenance operations, and ensures the efficiency of later maintenance.

[0027] The transformer body 1 has an exhaust port 7 at its top. A dustproof top cover 2 is detachably connected above the exhaust port 7. An axial flow fan 8 is installed at the center of the inner cavity of the exhaust port 7. A dustproof plate 9 is detachably connected to the top of the inner cavity of the exhaust port 7. During heat dissipation, the axial flow fan 8 can enhance the airflow circulation efficiency, and the dustproof top cover 2 can prevent dust from easily falling onto the surface of the dustproof plate 9 above the exhaust port 7. This prevents external dust from entering through the exhaust port 7, effectively ensuring the ventilation effect of the exhaust port 7, and thus ensuring the heat dissipation effect.

[0028] Working principle: The corners of the dustproof net 608 are fitted onto the nesting rods 607 in the nesting grooves 606 of the second dustproof frame 602. The hinges are rotated to engage the first dustproof frame 601 and the second dustproof frame 602. The elastic buckles 605 are engaged with the corresponding buckle holes 609 to achieve fixation. At this time, the sealing gaskets 603 on the inner side of the first dustproof frame 601 will cooperate with the nesting grooves 606 to press the edges of the dustproof net 608, ensuring that the dustproof net 608 is stable and sealed. Then, the assembled dustproof component 6 is slid into the assembly groove 5 of the air intake window 3. The snap connector 14 at the bottom of the connecting rod 11 in the limiting component automatically snaps into the limiting snap hole 10 at the top of the dustproof component 6 under the push of the spring 13, completing the fixation of the dustproof component 6 and the air intake window 3. At the same time, the temperature-controlled sealed louver 4 is installed on the outer wall of the inner cavity of the air intake window 3. When the high-voltage frequency converter During the heat dissipation process, the axial flow fan 8 drives the airflow. Outside air enters through the temperature-controlled sealed louvers 4 of the air inlet window 3, and after being filtered by the dustproof component 6, it enters the transformer body 1 and is then discharged through the exhaust port 7, achieving efficient heat dissipation. The temperature-controlled sealed louvers 4 can be adjusted in opening and closing according to the working conditions. When maintenance is required, to remove the dustproof component 6, simply pull the handle end 12 to move the connecting rod 11 upward, causing the snap connector 14 to disengage from the limit snap hole 10 and retract into the inner cavity of the limit snap hole 10. Then, the dustproof component 6 can be pulled out from the assembly slot 5 using the handle. When replacing the dustproof net 608, loosen the elastic buckle 605 to open the first dustproof frame 601, remove the old dustproof net 608, and then install the new dustproof net 608 in the same way. The reverse operation can be used to complete the installation. The operation is convenient and effectively improves the convenience and practicality of use.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-voltage frequency converter with dustproof function that is easy to disassemble, comprising a transformer body (1), characterized in that: Both sides of the transformer body (1) are fixedly nested with air inlets (3). The outer wall of the inner cavity of the air inlet (3) is detachably connected with a temperature-controlled sealed louver (4). An assembly groove (5) is opened in the inner cavity of the air inlet (3) and inside the temperature-controlled sealed louver (4). A dustproof component (6) with a quick-replaceable dust filter structure is slidably engaged in the inner cavity of the assembly groove (5). The top of the air inlet (3) above the opening of the assembly groove (5) is provided with a limiting component to enable quick disassembly and assembly of the dustproof component (6).

2. A high-voltage frequency converter with dustproof function that is easy to disassemble according to claim 1, characterized in that: The dustproof component (6) includes a first dustproof frame (601), a second dustproof frame (602), an elastic buckle (605), a nesting groove (606), a nesting rod (607), a dustproof net (608), and a buckle hole (609). The first dustproof frame (601) and the second dustproof frame (602) are connected by a hinge on one side, and the first dustproof frame (601) and the second dustproof frame (602) are snapped together and slidably disposed in the inner cavity of the assembly groove (5). The second dustproof frame (602) has a nesting hole on its inner side. The nested groove (606) has a nested rod (607) fixedly connected to each of the four corners of the inner cavity. The nested groove (606) is provided with a dustproof net (608), and the corners of the dustproof net (608) are all fitted with nested rods (607). The first dustproof frame (601) is detachably connected to one side with an elastic buckle (605), and there are multiple elastic buckles (605). The second dustproof frame (602) is provided with buckle holes (609) at the corresponding positions of the elastic buckles (605).

3. A high-voltage frequency converter with dustproof function that is easy to disassemble according to claim 2, characterized in that: The inner wall of the first dustproof frame (601) is fixedly connected with a sealing gasket (603) that is compatible with the nesting groove (606), and the corners of the sealing gasket (603) are provided with sleeve holes (604) that are compatible with the nesting rod (607).

4. A high-voltage frequency converter with dustproof function that is easy to disassemble according to claim 1, characterized in that: The limiting component includes an assembly hole (15), a connecting rod (11), a pull end (12), a spring (13), and a snap-fit ​​connector (14). The top of the air intake window (3) above the opening of the assembly slot (5) has an assembly hole (15) vertically opened. The connecting rod (11) is vertically slidably arranged in the inner cavity of the assembly hole (15), and the connecting rod (11) passes through the assembly hole (15) and extends to the top of the air intake window (3). The top of the connecting rod (11) is fixedly connected to the pull end (12), and the bottom of the connecting rod (11) is fixedly connected to the snap-fit ​​connector (14). The surface of the connecting rod (11) in the inner cavity of the assembly hole (15) is fixedly connected to the spring (13), and the two ends of the spring (13) abut against the top of the inner cavity of the assembly hole (15) and the back of the snap-fit ​​connector (14), respectively.

5. A high-voltage frequency converter with dustproof function that is easy to disassemble according to claim 2, characterized in that: The first dustproof frame (601) and the second dustproof frame (602) have limiting holes (10) adapted to the card connector (14) at their top ends and at positions corresponding to the card connector (14).

6. A high-voltage frequency converter with dustproof function that is easy to disassemble according to claim 2, characterized in that: A handle is fixedly connected to the center of the outer side wall of the first dustproof frame (601) and the second dustproof frame (602).

7. A high-voltage frequency converter with dustproof function that is easy to disassemble according to claim 1, characterized in that: The transformer body (1) has an exhaust hole (7) at the top. A dustproof top cover (2) is detachably connected above the exhaust hole (7). An axial flow fan (8) is installed at the center of the inner cavity of the exhaust hole (7). A dustproof plate (9) is detachably connected to the top of the inner cavity of the exhaust hole (7).

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