Frequency converter case convenient for disassembly and assembly of cooling fan

Abstract

The utility model belongs to the technical field of frequency converter cases, and discloses a frequency converter case facilitating disassembly and assembly of a cooling fan, which comprises a case body, a plurality of mounting racks are arranged in the case body, an opening is formed in one side of the case body, mounting plates are vertically arranged on two sides of the opening in the case body, and a plurality of rotating shafts are rotatably arranged between the two mounting plates. A baffle with the length direction consistent with the length direction of the rotating shaft is arranged on the rotating shaft, a driving assembly is arranged in the machine box body, fixing plates are vertically arranged at the positions, located on the two sides of the opening, outside the machine box body, sliding grooves are formed in the plate faces of one sides of the fixing plates, and a sliding frame is vertically arranged between the two sliding grooves in a sliding mode; two cooling fans are arranged on the sliding frame at intervals, a mounting frame is hinged to the outer sides of the two fixing plates, a filter screen is detachably arranged in the mounting frame, and a plurality of air outlets are formed in one side of the case body. And the driving assembly drives the rotating shaft to rotate to drive the baffle to rotate, so that the baffle rotates to a vertical state to block the opening.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converter chassis, in particular to a frequency converter chassis which is convenient for disassembly and assembly of a heat dissipation fan. Background Art

[0002] The inverter primarily consists of a rectifier, filter, inverter, brake unit, drive unit, detection unit, and microprocessor. The inverter adjusts the output power voltage and frequency by switching its internal IGBTs, providing the required power voltage based on the motor's actual needs, thereby achieving energy savings and speed regulation. In addition, the inverter also has numerous protection features, such as overcurrent, overvoltage, and overload protection.

[0003] At present, inverters are generally installed in chassis, and heat dissipation vents and openings are set on the side walls of the chassis, and filters and cooling fans are installed at the openings. When the cooling fan or filter needs to be repaired, replaced or cleaned, the dust attached to the cooling fan and filter will be lifted up and fly into the chassis through the opening during the removal of the cooling fan or filter, affecting the stable operation of electrical components such as the inverter in the chassis, and at the same time, causing inconvenience to the subsequent circuit maintenance in the chassis. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an inverter chassis which is convenient for disassembly and assembly of a heat dissipation fan.

[0005] The above-mentioned technical objectives of the utility model are achieved through the following technical solutions: an inverter chassis for facilitating the disassembly and assembly of heat dissipation fans, comprising a chassis body, wherein a plurality of mounting frames are provided in the chassis body, an opening is opened on one side of the chassis body, a mounting plate is vertically provided on both sides of the opening in the chassis body, a plurality of vertically spaced rotating shafts are rotatably provided between the two mounting plates, a baffle is provided on the rotating shaft with a length direction consistent with the length direction of the rotating shaft, and a distance between two adjacent rotating shafts is consistent with the width of the baffle, and a driving assembly for driving the rotating shaft is provided in the chassis body, wherein fixed plates are vertically provided on both sides of the opening outside the chassis body, a slide groove is opened on the plate surface of the fixed plate adjacent to the opening side, a sliding frame is vertically slidably provided between the two slide grooves, two cooling fans are spaced apart on the sliding frame, a mounting frame is hingedly provided on the outer sides of the two fixed plates, a filter is detachably provided in the mounting frame, and a plurality of air outlets are provided on one side of the chassis body.

[0006] By adopting the above technical solution, a chassis body, a rotating shaft, a baffle, a driving assembly, a fixed plate, a sliding frame, and an installation frame are provided, and electrical components such as the inverter are installed on the installation frame. When the cooling fan needs to be disassembled, the rotating shaft is first driven to rotate by the driving assembly, which drives the baffle to rotate, so that the baffle rotates to a vertical state, so that the upper and lower sides of two adjacent baffles contact, blocking the opening, and preventing dust attached to the cooling fan and the filter from being lifted up and floating into the chassis body through the opening when the cooling fan and the filter are disassembled and assembled, thereby ensuring the stability of the inverter and other electrical components in the chassis body; the cooling fan is arranged on the sliding frame, and the sliding frame can slide out of the two sliding grooves, making the disassembly and assembly of the cooling fan simple and convenient.

[0007] Furthermore, the drive assembly includes a sliding groove vertically arranged in the chassis body, a rack is slidably arranged in the sliding groove, the rotating shaft passes through the mounting plate near one end of the rack and is provided with a gear, several of the gears are engaged with the rack, and an adjustment unit for adjusting the position of the rack is provided on the chassis body.

[0008] By adopting the above technical solution, a slide groove, a rack, a gear, and an adjustment unit are set, and the position of the rack is adjusted by the adjustment unit, thereby driving several gears and a rotating shaft to rotate, and then driving the baffle to rotate.

[0009] Furthermore, the adjustment unit includes an adjustment plate vertically arranged on the rack, the chassis body is provided with vertically arranged strip holes, and a toggle plate is provided on the adjustment plate, and the toggle plate extends through the strip holes to the outside of the chassis body.

[0010] By adopting the above technical solution, an adjustment plate, a strip hole, and a toggle plate are set. The toggle plate drives the adjustment plate to move, thereby driving the rack to move. The toggle plate extends through the strip hole to the outside of the chassis body, which is convenient for staff to operate.

[0011] The top end of the adjusting board is connected with the bottom end of the adjusting board, and the bottom end of the adjusting board is connected with the bottom end of the adjusting board.

[0012] By adopting the above technical solution, a guide rod, a pressure plate, a first compression spring, an extension plate, a mounting block, a connecting plate, a second compression spring, a clamping column, and an adjusting column are set. The adjusting plate moves downward to drive the rack to slide downward, and the second compression spring is in a compressed state, so that the clamping column contacts the surface of the adjusting plate. When the baffle is fully closed, the clamping hole and the clamping column are concentric, and the second compression spring pushes the clamping column to clamp into the clamping hole to fix the adjusting plate, thereby fixing the rack, and thus keeping the baffle in a closed state; during the downward sliding of the rack, the pressure plate is driven to descend, so that the first compression spring is compressed. When the baffle needs to be opened, the end of the adjusting column is pressed to extend out of the chassis body, so that the connecting plate and the clamping column move, and the clamping column is separated from the clamping hole. The second compression spring loses its restriction and releases the elastic force to push the rack to reset, thereby opening the baffle.

[0013] Furthermore, a connecting block is provided extending outward from the lower side of the plate surface where the two fixed plates are away from each other, a hinge shaft is provided between the two connecting blocks, the lower side of the installation frame is rotatably connected to the hinge shaft, and the installation frame is provided with a receiving groove on the side near the chassis body, and magnet columns are provided at the bottom of the receiving groove near the corners, and magnet sheets are provided on the fixed plates corresponding to the magnet columns, and mounting holes are provided at the four corners of the filter screen, and the mounting holes cooperate with the magnet columns.

[0014] By adopting the above technical solution, a mounting block, a hinge shaft, a receiving groove, a magnet column, a magnet sheet, and a mounting hole are set. The mounting frame is fixed by the magnet column and the magnet sheet. When the filter needs to be replaced, the mounting frame is rotated to separate the magnet column from the magnet sheet, and then the old filter is removed. Then, the mounting hole of the new filter is aligned with the magnet column, and the new filter is installed in the mounting frame.

[0015] Furthermore, a sealing strip is provided on the side of the baffle away from the rotating shaft.

[0016] By adopting the above technical solution, a sealing strip is provided on the side of the baffle away from the rotating shaft, so that when the upper and lower sides of the baffle are in contact, the sealing effect between the baffles is better.

[0017] Furthermore, a sealing plate is horizontally arranged on the upper side of the opening and between the two mounting plates.

[0018] By adopting the above technical solution, a sealing plate is horizontally arranged between the two mounting plates on the upper side of the opening. When the baffle is closed, the uppermost baffle contacts the side of the sealing plate away from the hinge axis, thereby achieving a better sealing effect on the opening.

[0019] In summary, the present invention has the following beneficial effects:

[0020] 1. In the present application, a chassis body, a rotating shaft, a baffle, a driving assembly, a fixing plate, a sliding frame, and a mounting frame are provided, and electrical components such as a frequency converter are installed on the mounting frame. When the cooling fan needs to be disassembled, the rotating shaft is first driven to rotate by the driving assembly, thereby driving the baffle to rotate, so that the baffle rotates to a vertical state, so that the upper and lower sides of two adjacent baffles contact, thereby blocking the opening, and preventing dust attached to the cooling fan and the filter from being lifted up and drifting into the chassis body through the opening when the cooling fan and the filter are disassembled and assembled, thereby ensuring the stability of the frequency converter and other electrical components in the chassis body; the cooling fan is provided on the sliding frame, and the sliding frame can slide out from the two sliding grooves, so that the cooling fan is easy and convenient to disassemble and assemble;

[0021] 2. In this application, a guide rod, a pressure plate, a first compression spring, an extension plate, a mounting block, a connecting plate, a second compression spring, a clamping column, and an adjusting column are provided. The adjusting plate moves downward to drive the rack to slide downward, and the second compression spring is in a compressed state, so that the clamping column contacts the surface of the adjusting plate. When the baffle is fully closed, the clamping hole and the clamping column are concentric, and the second compression spring pushes the clamping column to be clamped into the clamping hole to fix the adjusting plate, thereby fixing the rack, and thus keeping the baffle in a closed state; during the downward sliding of the rack, the pressure plate is driven to descend, so that the first compression spring is compressed. When the baffle needs to be opened, the end of the adjusting column is pressed to extend out of the chassis body, so that the connecting plate and the clamping column move, and the clamping column is separated from the clamping hole. The second compression spring loses its restriction and releases the elastic force to push the rack to reset, thereby causing the baffle to be opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the embodiment of the utility model from another angle;

[0024] Figure 3 yes Figure 2A magnified view of part A;

[0025] Figure 4 This is a structural diagram of the mounting plate, drive assembly, and baffle portion of an embodiment of the utility model;

[0026] Figure 5 yes Figure 4 A magnified view of part B;

[0027] Figure 6 yes Figure 4 Magnified view of part C;

[0028] Figure 7 This is a structural diagram of the fixed plate, sliding frame, and cooling fan portion of an embodiment of the utility model;

[0029] Figure 8 It is a structural diagram of the installation frame and filter screen part of the embodiment of the utility model.

[0030] Figure: 10, chassis body; 11, mounting frame; 12, opening; 13, air outlet; 14, sealing plate; 20, mounting plate; 21, rotating shaft; 22, baffle; 23, sealing strip; 30, fixing plate; 31, slide groove; 32, sliding frame; 33, cooling fan; 34, magnet; 40, drive assembly; 41, slide groove; 42, rack; 43, gear; 50, mounting frame; 51, filter; 52 , accommodating groove; 53, magnet column; 54, mounting hole; 60, adjusting unit; 61, adjusting plate; 611, clamping hole; 62, bar hole; 63, toggle plate; 70, guide rod; 71, pressure plate; 72, first compression spring; 73, extension plate; 74, mounting block; 75, square rod; 76, connecting plate; 77, second compression spring; 78, clamping column; 79, adjusting column; 80, connecting block; 81, hinge shaft. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] like Figure 1-8As shown, the embodiment of the present application discloses an inverter chassis that facilitates the disassembly and assembly of a cooling fan, comprising a chassis body 10, a mounting bracket 11, a mounting plate 20, a drive assembly 40, and a mounting frame 50. Several mounting brackets 11 are disposed within the chassis body 10 for mounting an inverter and other electrical components. An opening 12 is provided on one side of the chassis body 10. Two mounting plates 20 are disposed within the chassis body 10 on either side of the opening 12. A plurality of vertically spaced rotating shafts 21 are rotatably disposed between the two mounting plates 20. A baffle 22 is disposed on the rotating shaft 21, the length of which is consistent with the length of the rotating shaft 21, so that rotation of the rotating shaft 21 drives the baffle 22 to rotate. The distance between two adjacent rotating shafts 21 is consistent with the width of the baffle 22, so that rotation of the rotating shaft 21 rotates the baffle 22 vertically. When the baffle 22 is vertical, it is in a closed state, with the upper and lower sides of the two adjacent baffles 22 in contact. The drive assembly 40 is disposed within the chassis body 10 and is used to drive the rotating shaft 21 to rotate. On the outside of the chassis body 10, fixed plates 30 are vertically arranged on both sides of the opening 12. A slide groove 31 is provided on the surface of the fixed plate 30 on the side adjacent to the opening 12. A sliding frame 32 is vertically slidably arranged between the two slide grooves 31. Two cooling fans 33 are spaced apart on the sliding frame 32. When the cooling fans 33 need to be removed, they only need to slide the sliding frame 32 out, which is simple and convenient. A mounting frame 50 is hingedly arranged on the outside of the two fixed plates 30. A filter 51 is removably arranged inside the mounting frame 50. Several air outlets 13 are provided on one side of the chassis body 10. The cooling fans 33 blow outside air into the interior of the chassis body 10, so that the air inside the chassis body 10 is blown out through the air outlet 13. During the air flow, the heat inside the chassis body 10 is removed.

[0033] Specifically, the drive assembly 40 includes a sliding groove 41 vertically arranged in the chassis body 10, and a rack 42 is slidingly arranged in the sliding groove 41. The rotating shaft 21 passes through the mounting plate 20 near the end of the rack 42 and is provided with a gear 43. Several gears 43 are engaged with the rack 42, so that when the rack 42 moves, it drives the several gears 43 and the rotating shaft 21 to rotate, and then drives the baffle 22 to rotate. The chassis body 10 is provided with an adjustment unit 60 for adjusting the position of the rack 42. The adjustment unit 60 includes an adjustment plate 61 vertically arranged on the rack 42, so that the adjustment plate 61 and the rack 42 move synchronously. The chassis body 10 is provided with a vertically arranged strip hole 62, and the adjustment plate 61 is provided with a toggle plate 63. The toggle plate 63 extends through the strip hole 62 to the outside of the chassis body 10, which is convenient for staff to operate.

[0034] During installation, a guide rod 70 is vertically disposed on the inner bottom of the chassis body 10 below the rack 42. A pressure plate 71 is vertically slidably disposed on the guide rod 70. The pressure plate 71 is connected to the bottom of the rack 42, so that when the rack 42 moves, the pressure plate 71 is driven to slide on the guide rod 70. A first compression spring 72 is sleeved on the guide rod 70, located between the pressure plate 71 and the inner bottom of the chassis body 10. The upper end of the first compression spring 72 is connected to the pressure plate 71, and the lower end is connected to the inner bottom of the chassis body 10. When the rack 42 moves downward, the second compression spring 77 is compressed. An extension plate 73 is horizontally disposed within the chassis body 10, adjacent to the adjustment plate 61. A mounting block 74 is disposed at the end of the extension plate 73. A square hole is horizontally formed in the mounting block 74, and a square rod 75 is slidably disposed within the square hole. A connecting plate 76 is disposed on the end of the square rod 75 adjacent to the adjustment plate 61, so that the sliding of the square rod 75 drives the sliding of the connecting plate 76.

[0035] A second compression spring 77 is sleeved around the square rod 75, located between the connecting plate 76 and the mounting block 74. One end of the second compression spring 77 is connected to the connecting plate 76, and the other end is connected to the mounting block 74. A locking post 78 and an adjustment post 79 are spaced apart on the connecting plate 76. Initially, the second compression spring 77 is compressed, causing the locking post 78 to contact the surface of the adjustment plate 61. The adjustment plate 61 has a locking hole 611 above the locking post 78. When the baffle 22 is in the closed position, the locking post 78 is located within the locking hole 611. The downward movement of the adjustment plate 61 drives the rack 42 downward. When the baffle 22 is fully closed, the locking hole 611 and the locking post 78 become concentric. The second compression spring 77 pushes the locking post 78 into the locking hole 611, securing the adjustment plate 61 and the rack 42, thereby maintaining the baffle 22 in the closed position. The end of the adjusting column 79 away from the connecting plate 76 passes through the chassis body 10 and is placed outside the chassis body 10. During the downward sliding of the rack 42, the pressure plate 71 is driven to descend, so that the first compression spring 72 is compressed. When the baffle 22 needs to be opened, the adjusting column 79 is pressed to extend out of the end of the chassis body 10, so that the connecting plate 76 and the clamping column 78 move, and the clamping column 78 is separated from the clamping hole 611. The second compression spring 77 loses its restriction and releases the elastic force to push the rack 42 to reset, thereby allowing the baffle 22 to be opened.

[0036] In specific configuration, a connecting block 80 extends outward from the lower sides of the two fixed plates 30, away from each other. A hinge shaft 81 is provided between the two connecting blocks 80. The lower side of the mounting frame 50 is rotatably connected to the hinge shaft 81, ensuring the stability of the mounting frame 50's rotation. The mounting frame 50 has a receiving slot 52 on the side adjacent to the chassis body 10. Magnet posts 53 are located at the bottom of the slot 52, near the corners. Magnet pieces 34 are provided on the fixed plates 30, corresponding to the magnet posts 53. The magnet pieces 34 and the magnet posts 53 attract each other, securing the mounting frame 50. Mounting holes 54 are provided at each of the four corners of the filter 51, which mate with the magnet posts 53. To replace the filter 51, rotate the mounting frame 50 to separate the magnet posts 53 from the magnet pieces 34, remove the old filter 51, and then align the mounting holes 54 of the new filter 51 with the magnet posts 53. The new filter 51 is then installed within the mounting frame 50, making it simple and convenient. A sealing strip 23 is provided on the side of the baffle 22 away from the rotation axis 21, which ensures a better seal between the baffles 22 when the upper and lower sides of the baffles 22 contact each other. A sealing plate 14 is horizontally provided above the opening 12, between the two mounting plates 20. When the baffles 22 are closed, the side of the uppermost baffle 22 away from the hinge axis 81 contacts the side of the sealing plate 14, ensuring a better sealing effect at the opening 12.

[0037] The principle of use of an inverter chassis that is convenient for disassembling and assembling the cooling fan 33 in this embodiment is as follows: the inverter and other electrical components are installed on the mounting frame 11. When the cooling fan 33 needs to be disassembled, the toggle plate 63 is first toggled downward to drive the adjustment plate 61 and the rack 42 to move downward, so that the gear 43 and the rotating shaft 21 rotate, driving the baffle 22 to rotate, so that the baffle 22 rotates to a vertical state, so that the upper and lower sides of the two adjacent baffles 22 contact each other, and the side of the uppermost baffle 22 away from the hinge shaft 81 contacts the side of the sealing plate 14, blocking the opening 12, and then the sliding frame 32 slides upward and slides out of the two slide grooves 31, which is simple and convenient; when the filter 51 needs to be replaced, the mounting frame 50 is first rotated to separate the magnet column 53 from the magnet sheet 34, and then the old filter 51 is removed, and then the mounting hole 54 of the new filter 51 is aligned with the magnet column 53, and the new filter 51 is installed in the mounting frame 50.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A frequency converter chassis that facilitates the disassembly and assembly of a cooling fan, comprising a chassis body (10), characterized in that: A plurality of mounting frames (11) are provided in the chassis body (10), an opening (12) is provided on one side of the chassis body (10), mounting plates (20) are vertically provided on both sides of the opening (12) in the chassis body (10), a plurality of vertically spaced rotating shafts (21) are rotatably provided between two of the mounting plates (20), a baffle (22) whose length direction is consistent with the length direction of the rotating shaft (21) is provided on the rotating shaft (21), and the distance between two adjacent rotating shafts (21) is consistent with the width of the baffle (22), and a driving mechanism (21) is provided in the chassis body (10) to rotate the rotating shaft (21). The invention relates to a driving component (40), wherein fixed plates (30) are vertically arranged on both sides of the opening (12) outside the chassis body (10), a sliding groove (31) is provided on the plate surface of the fixed plate (30) adjacent to the opening (12), a sliding frame (32) is vertically slidably arranged between the two sliding grooves (31), two cooling fans (33) are spaced apart on the sliding frame (32), an installation frame (50) is hingedly arranged on the outside of the two fixed plates (30), a filter (51) is detachably arranged in the installation frame (50), and a plurality of air outlets (13) are arranged on one side of the chassis body (10).

2. The inverter chassis that facilitates the disassembly and assembly of the cooling fan according to claim 1 is characterized in that: The driving assembly (40) includes a sliding groove (41) vertically arranged in the chassis body (10), a rack (42) is slidably arranged in the sliding groove (41), the rotating shaft (21) passes through the mounting plate (20) at one end adjacent to the rack (42) and is provided with a gear (43), a plurality of the gears (43) are engaged with the rack (42), and an adjusting unit (60) for adjusting the position of the rack (42) is provided on the chassis body (10).

3. The inverter chassis that facilitates the disassembly and assembly of the cooling fan according to claim 2, characterized in that: The adjustment unit (60) comprises an adjustment plate (61) vertically arranged on the rack (42); a vertically arranged strip hole (62) is provided on the chassis body (10); a toggle plate (63) is provided on the adjustment plate (61); and the toggle plate (63) passes through the strip hole (62) and extends to the outside of the chassis body (10).

4. The inverter chassis that facilitates the disassembly and assembly of the cooling fan according to claim 3 is characterized in that: The chassis body (10) is provided with a guide rod (70) vertically at the inner bottom below the rack (42), and a pressure plate (71) is provided on the guide rod (70) for vertical sliding. The pressure plate (71) is connected to the bottom of the rack (42), and the guide rod (70) is provided with a first compression spring (72) on the rod body between the pressure plate (71) and the inner bottom of the chassis body (10). The upper end of the first compression spring (72) is connected to the pressure plate (71) and the lower end is connected to the inner bottom of the chassis body (10). An extension plate (73) is provided horizontally beside the adjustment plate (61) in the chassis body (10), and a mounting block (74) is provided at the end of the extension plate (73). A square hole is horizontally opened on the mounting block (74), and a sliding spring (74) is provided in the square hole. A square rod (75) is provided, and a connecting plate (76) is provided at one end of the square rod (75) adjacent to the adjustment plate (61). The square rod (75) is located between the connecting plate (76) and the mounting block (74) and is sleeved with a second compression spring (77). One end of the second compression spring (77) is connected to the connecting plate (76) and the other end is connected to the mounting block (74). A clamping column (78) and an adjustment column (79) are provided on the connecting plate (76) at intervals. A clamping hole (611) is provided above the clamping column (78) on the adjustment plate (61). When the baffle (22) is in a closed state, the clamping column (78) is located in the clamping hole (611). The adjustment column (79) is located outside the chassis body (10) at one end away from the connecting plate (76).

5. The inverter chassis that facilitates the disassembly and assembly of the cooling fan according to claim 1, characterized in that: A connecting block (80) is provided on the lower side of the plate surface of the two fixed plates (30) which are away from each other, and a hinge shaft (81) is provided between the two connecting blocks (80). The lower side of the installation frame (50) is rotatably connected to the hinge shaft (81). A receiving groove (52) is provided on the side of the installation frame (50) adjacent to the chassis body (10), and magnet columns (53) are provided at the bottom of the receiving groove (52) adjacent to the corners. Magnet sheets (34) are provided on the fixed plates (30) corresponding to the magnet columns (53). Mounting holes (54) are provided at the four corners of the filter screen (51), and the mounting holes (54) cooperate with the magnet columns (53).

6. The inverter chassis that facilitates the disassembly and assembly of the cooling fan according to claim 1, characterized in that: A sealing strip (23) is provided on the side of the baffle (22) away from the rotating shaft (21).

7. The inverter chassis that facilitates the disassembly and assembly of the cooling fan according to claim 1, characterized in that: A sealing plate (14) is horizontally arranged between two mounting plates (20) on the upper side of the opening (12).

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