Variable frequency driver convenient to disassemble

Abstract

The utility model discloses a frequency conversion driver convenient to disassemble, relates to the frequency conversion driver technology field, and comprises two hanging racks and a machine body, the inner walls of the two hanging racks are fixedly provided with connection plates, the two hanging racks are respectively provided with two installation holes in an aligned manner, the two hanging racks are respectively connected with movable racks in a clamping manner, and the movable racks are connected with the machine body in a clamping manner. Internal threaded holes are formed in the two movable frames respectively, a plurality of fixed seats are symmetrically arranged on the side wall of the machine body, and the fixed seats are connected with the internal threaded holes in the movable frames through bolts respectively. According to the utility model, through the arrangement of the hanging frame and the movable frame, in the installation process, the hanging frame is connected with the installation hole formed in the cabinet body, the installation position of the variable frequency driver body can be adjusted by moving the movable frame, obstruction of installed equipment is avoided, and meanwhile, the distance between the variable frequency driver body and other electrical equipment can be adjusted; and electromagnetic interference or thermal radiation influence between the device and other electrical equipment is avoided, and subsequent disassembly and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of variable frequency drivers, in particular to a variable frequency driver which is easy to disassemble. Background Art

[0002] A frequency converter drive is a device that can control the number of times and speed of motor operation. Its principle is to adjust the speed of the motor by changing the frequency and voltage of alternating current. In industrial production, frequency converter drives are often used to control the operation of various motors, such as fans, water pumps, air conditioners, etc. Since frequency converter drives have the characteristic of being able to adjust the speed of the motor, they can effectively reduce the energy consumption of the motor, thereby saving electricity bills.

[0003] In order to facilitate centralized management and maintenance, the variable frequency drive is usually installed in the control cabinet and works with other control equipment. In actual use, the base of the variable frequency drive is connected to the mounting hole opened at a fixed position in the cabinet by bolts. However, due to the limitation of the internal space of the control cabinet, the internal electrical equipment and the variable frequency drive are close to each other, which will cause electromagnetic interference. When replacing variable frequency drives of different specifications and sizes, it is easy to be blocked by other installed equipment and cannot be installed. Holes can only be opened in other positions for installation, which is more cumbersome and will have a certain impact on the overall structure and layout of the control cabinet, causing problems such as reduced sealing performance and reduced protection level of the control cabinet. In view of this, the present application proposes a variable frequency drive that is easy to disassemble. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a variable frequency drive which is easy to disassemble.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A variable frequency drive that is easy to disassemble comprises two hangers and a body, the inner walls of the two hangers are fixedly installed with a connecting plate, the two hangers are respectively provided with two mounting holes in opposite positions, the two hangers are respectively clamped with a movable frame, the two movable frames are respectively provided with an internal threaded hole, a plurality of fixing seats are symmetrically arranged on the side walls of the body, the plurality of fixing seats are respectively connected to the internal threaded holes on the movable frame by bolts, two positioning blocks are respectively fixedly connected to the corresponding side walls of the two hangers, a vertical plate is commonly connected between the two vertically aligned positioning blocks, a plurality of heat dissipation holes for heat dissipation are provided on the side walls of the body, a wiring port is installed at the lower end of the body, a wiring harness device is provided at the bottom of the body, and the wiring harness device is fixedly connected to the body with bolts.

[0007] Preferably, one of the hangers is maintained at the same horizontal line with the bottom of the machine body, and the other hanger is maintained at the same horizontal line with the top of the machine body.

[0008] Preferably, the distance between two mounting holes provided on the bracket is equal to the distance between two corresponding fixing seats.

[0009] Preferably, the thickness L of the two vertical plates is 1 The distance between the side wall of the fuselage and the bracket is L 2 Equal, that is, L 1 =L 2 .

[0010] Preferably, the wiring harness device includes two limit seats, the two limit seats are respectively fixedly connected to connecting rods, and the two connecting rods are both inclined, an assembly plate is commonly connected between the two connecting rods, a plurality of wire clamps are arranged on the side wall of the assembly plate, and the plurality of wire clamps are arranged equidistantly.

[0011] Preferably, the two limiting seats are respectively provided with internal threaded holes, and the distance between the two limiting seats is equal to the distance between the corresponding two fixing seats.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model provides a hanging bracket and a movable bracket. During the installation process, the hanging bracket is connected to the mounting hole of the cabinet. The movable bracket can be moved to adjust the installation position of the frequency converter body to avoid being blocked by the installed equipment. At the same time, the spacing with other electrical equipment can be adjusted to avoid electromagnetic interference or heat radiation with other electrical equipment, which is convenient for subsequent disassembly and maintenance.

[0014] 2. The utility model provides a limit seat, a connecting rod and an assembly plate. During the installation of the variable frequency drive, multiple wire clamps can be finally installed on the bottom of the machine body through bolts, and the wire clamps are respectively made to correspond to the wire holes on the wiring ports, so as to arrange the connecting wires of the variable frequency drive, arrange the lines neatly, avoid entanglement between them, improve the overall cleanliness of the control cabinet, reduce mutual interference between lines, improve the stability and reliability of signal transmission, and facilitate subsequent maintenance and repair work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a bottom view structural diagram of a variable frequency drive that is easy to disassemble proposed by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0017] Figure 3 This is a rear structural schematic diagram of a variable frequency drive that is easy to disassemble proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rack in the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the wire harness device in the utility model.

[0020] In the figure: 1. bracket; 2. connecting plate; 3. mounting hole; 4. movable frame; 5. fixing seat; 6. bolt; 7. machine body; 8. heat dissipation hole; 9. positioning block; 10. vertical plate; 11. limit seat; 12. connecting rod; 13. assembly plate; 14. wire clamp; 15. wiring port. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 , a variable frequency drive that is easy to disassemble, includes two brackets 1 and a body 7, one of the brackets 1 is maintained at the same horizontal line with the bottom of the body 7, and the other bracket 1 is maintained at the same horizontal line with the top of the body 7, and a connecting plate 2 is fixedly installed on the inner walls of the two brackets 1, and two mounting holes 3 are respectively opened on the two brackets 1, and the spacing between the two mounting holes 3 opened on the brackets 1 is equal to the spacing between the corresponding two fixing seats 5. It should be noted that the mounting holes 3 opened on the two brackets 1 correspond to the positions of multiple fixing seats 5 on the body 7, so that during the installation process, the bracket 1 can be accurately installed in the installation port reserved in the control cabinet, and due to the small size of the bracket 1, it can avoid being obstructed by other equipment.

[0023] The two hangers 1 are respectively clamped with movable frames 4, and the two movable frames 4 are respectively provided with internal threaded holes. A plurality of fixing seats 5 are symmetrically arranged on the side walls of the body 7, and the plurality of fixing seats 5 are respectively connected to the internal threaded holes on the movable frames 4 through bolts 6. It should be noted that the two movable frames 4 can be connected to the body 7 together through the connection of a plurality of bolts 6, so that by adjusting the length of the movable frame 4 extending out of the hanger 1, the installation position of the body 7 is adjusted, and the distance between the body 7 and other electrical equipment is adjusted. Furthermore, the bolts 6 are continuously turned, and finally the bolts 6 are abutted against the connecting plate 2 provided on the inner wall of the hanger 1. The limiting effect provided can fix the movable frame 4 and the body 7 to prevent movement during operation.

[0024] Two positioning blocks 9 are fixedly connected to the corresponding side walls of the two hangers 1, and a vertical plate 10 is connected between the two vertically aligned positioning blocks 9. The thickness of the two vertical plates 10 is L 1 The distance L between the side wall of the machine body 7 and the rack 1 2 Equal, that is, L 1 =L 2 It should be noted that, by setting the positioning block 9 and the vertical plate 10, the stability between the two brackets 1 can be improved, and the mechanical vibration generated during the operation of the body 7 can be reduced. At the same time, the vertical plate 10 made of metal is in contact with the side wall of the body 7, and cooperates with the bracket 1 to form a passage between the side wall of the body 7 and the control cabinet body, so as to do a good job of grounding and reduce electromagnetic interference.

[0025] A plurality of heat dissipation holes 8 for heat dissipation are provided on the side wall of the body 7. The body 7 uses a heat dissipation fan installed inside to blow air out from the heat dissipation holes 8 to cool down the inside of the body 7. Furthermore, by controlling the tightness of the bolts 6, the body 7 can be moved on the hanger 1 with the movable frame 4, so that the vertical plate 10 contacts the side wall of the body 7, and dust attached to the heat dissipation holes 8 can be cleaned. At the same time, with the obstruction of the vertical plate 10, the aperture of the heat dissipation holes 8 changes, which changes the flow rate of the gas passing through, thereby blowing the dust out of the inside of the body 7 and improving the cleaning effect.

[0026] A wiring port 15 is installed at the lower end of the body 7, and a wiring harness device is provided at the bottom of the body 7, and the wiring harness device is fixedly connected to the body 7 in coordination with the bolts 6. The wiring harness device includes two limit seats 11, and the two limit seats 11 are respectively fixedly connected with connecting rods 12, and the two connecting rods 12 are both inclined. An assembly plate 13 is commonly connected between the two connecting rods 12, and a plurality of wire clamps 14 are provided on the side walls of the assembly plate 13, and the plurality of wire clamps 14 are arranged equidistantly. Internal threaded holes are respectively provided on the two limit seats 11, and the spacing between the two limit seats 11 is equal to the spacing between the corresponding two fixed seats 5. It should be noted that when the fixed seat 5 is connected to the movable frame 4, the limit seat 11 is simultaneously installed at the connection position, so that the assembly plate 13 at the bottom can be fixed, and the connecting wires of the body 7 can be arranged by the plurality of wire clamps 14 provided on the assembly plate 13 to ensure regular wiring, avoid cross winding, and reduce signal interference between lines.

[0027] When the utility model is in use, the bracket 1 is installed in the control cabinet through the mounting hole 3 according to the mounting position reserved in the control cabinet, and the extended length of the movable frame 4 is adjusted according to the specifications of the frequency conversion drive, so as to adjust the installation position of the frequency conversion drive to avoid being affected by other equipment during the installation process, so that the multiple fixing seats 5 fixedly connected on the side wall of the frequency conversion drive are respectively aligned with the internal threaded holes opened on the movable frame 4, and the bolts 6 are used to tighten the body 7 and the movable frame 4 to complete the connection, and the bolts 6 are continuously turned until one end of the bolt 6 extending to the bracket 1 is finally against the connecting plate 2, which can limit the movable frame 4, thereby completing the fixation of the body 7 and the installation of the frequency conversion drive body 7, and the body 7 is easy to disassemble during subsequent maintenance and replacement.

[0028] During the process of connecting the fixed seats 5 on both sides of the bottom of the body 7 with the movable frame 4, the limit seat 11 is moved to the connection point and fixed by the bolts 6. At this time, the assembly plate 13 connected by the connecting rods 12 on both sides is located under the body 7, and the multiple wire clamps 14 arranged on the assembly plate 13 correspond to the wiring ports 15. The connection wires of the frequency converter can be sorted to avoid entanglement between the lines, which is convenient for subsequent maintenance and inspection.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A variable frequency drive that is easy to disassemble, comprising two brackets (1) and a body (7), characterized in that: A connecting plate (2) is fixedly mounted on the inner walls of the two hangers (1), two mounting holes (3) are respectively arranged on the two hangers (1), a movable frame (4) is respectively clamped on the two hangers (1), and the two movable frames (4) are respectively provided with internal threaded holes, a plurality of fixing seats (5) are symmetrically arranged on the side walls of the body (7), and the plurality of fixing seats (5) are respectively connected to the internal threaded holes on the movable frame (4) through bolts (6), two positioning blocks (9) are respectively fixedly connected on the corresponding side walls of the two hangers (1), and a vertical plate (10) is commonly connected between the two vertically aligned positioning blocks (9), a plurality of heat dissipation holes (8) for heat dissipation are arranged on the side walls of the body (7), a wiring port (15) is installed at the lower end of the body (7), a wiring device is arranged at the bottom of the body (7), and the wiring device cooperates with the bolts (6) to be fixedly connected to the body (7).

2. The variable frequency drive that is easy to disassemble according to claim 1, characterized in that: One of the hangers (1) is maintained at the same horizontal line with the bottom of the machine body (7), and the other hanger (1) is maintained at the same horizontal line with the top of the machine body (7).

3. The variable frequency drive that is easy to disassemble according to claim 1, characterized in that: The distance between the two mounting holes (3) provided on the hanger (1) is equal to the distance between the corresponding two fixing seats (5).

4. The variable frequency drive that is easy to disassemble according to claim 1, characterized in that: The thickness L1 of the two vertical plates (10) is equal to the distance L2 between the side wall of the machine body (7) and the hanger (1), that is, L1 = L2.

5. The variable frequency drive that is easy to disassemble according to claim 1, characterized in that: The wire harness device comprises two limit seats (11), the two limit seats (11) are respectively fixedly connected with connecting rods (12), and the two connecting rods (12) are both inclinedly arranged, and an assembly plate (13) is commonly connected between the two connecting rods (12), and a plurality of wire clamps (14) are arranged on the side wall of the assembly plate (13), and the plurality of wire clamps (14) are arranged at equal distances.

6. The variable frequency drive that is easy to disassemble according to claim 5, characterized in that: The two limiting seats (11) are respectively provided with internal threaded holes, and the distance between the two limiting seats (11) is equal to the distance between the corresponding two fixing seats (5).

Images