Frequency converter with high dismounting efficiency

Abstract

The utility model discloses a frequency converter with high dismounting efficiency, which relates to the field of frequency converters and comprises an equipment rear cover, the outer wall of the equipment rear cover is provided with two groups of sliding grooves, the two groups of sliding grooves are symmetrically distributed at the upper and lower ends of the outer wall of the equipment rear cover, and the inner walls of the sliding grooves are provided with two groups of reset springs. Clamping blocks are arranged on the sides, close to the reset springs, of the inner walls of the sliding grooves, two limiting blocks are arranged on the inner walls of the clamping blocks, the two limiting blocks are symmetrically distributed on the inner walls of the clamping blocks, an equipment top cover is arranged on the outer wall of the top of the equipment rear cover, and two clamping holes are formed in the outer wall of the equipment top cover; a movable hinge is arranged at the bottom, close to the clamping hole, of the outer wall of the equipment top cover, a dust shielding cover is arranged on one side of the movable hinge, and an elastic buckle is arranged on the outer wall of the top of the dust shielding cover. The dismounting efficiency of the device can be improved, and the practicability of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of frequency converters, and in particular to a frequency converter with high disassembly efficiency. Background Technology

[0002] A frequency converter (VFD) is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of its power supply. A VFD mainly consists of a rectification unit (AC to DC), a filter, an inverter (DC to AC), a braking unit, a drive unit, a detection unit, and a microprocessor unit. The VFD adjusts the voltage and frequency of the output power supply by switching its internal IGBTs, providing the required power voltage according to the actual needs of the motor, thereby achieving energy saving and speed regulation. In addition, VFDs have many protection functions, such as overcurrent, overvoltage, and overload protection. With the continuous improvement of industrial automation, VFDs have been widely used.

[0003] While existing frequency converters can be easily disassembled and have their housings replaced using flanges and bolts, the need for tools to remove these bolts during daily use reduces disassembly efficiency. Therefore, it is essential to invent a frequency converter with high disassembly efficiency to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide a frequency converter with high disassembly efficiency to solve the problem of low disassembly efficiency mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a frequency converter with high disassembly efficiency, comprising a rear cover, wherein the outer wall of the rear cover is provided with two sets of sliding grooves, the two sets of sliding grooves being symmetrically distributed at the upper and lower ends of the outer wall of the rear cover; the inner wall of the sliding groove is provided with two sets of return springs; a locking block is provided on the side of the inner wall of the sliding groove near the return spring; the inner wall of the locking block is provided with two sets of limiting blocks, the two sets of limiting blocks being symmetrically distributed on the inner wall of the locking block; a top cover is provided on the top outer wall of the rear cover; the outer wall of the top cover is provided with two sets of locking holes; a movable flap is provided on the bottom of the outer wall of the top cover near the locking holes; a dust cover is provided on one side of the movable flap; and an elastic buckle is provided on the top outer wall of the dust cover.

[0006] Preferably, two sets of connecting magnets are provided on the outer wall of the device top cover near the top of the locating hole.

[0007] Preferably, the top inner wall of the device rear cover is provided with multiple sets of guide pillars, and the multiple sets of guide pillars are evenly distributed on the top inner wall of the device rear cover.

[0008] Preferably, a snap-fit ​​groove is provided on the top outer wall of the device rear cover on the side away from the guide post, and a circuit board is provided on the inner wall of the snap-fit ​​groove.

[0009] Preferably, the top outer wall of the circuit board has multiple sets of guide holes, which are evenly distributed on the top outer wall of the circuit board, and the side outer wall of the circuit board has multiple sets of connecting pipes.

[0010] Preferably, the outer wall of the device's rear cover has multiple sets of heat dissipation holes, which are evenly distributed on the outer wall of the device's rear cover.

[0011] Preferably, the outer wall of the device top cover has multiple sets of connection holes.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, the user can pull the elastic buckles on the dust cover connected to the movable leaf at the upper and lower ends of the outer wall of the equipment top cover, and pull the elastic buckles from the connecting magnet on the inner wall of the equipment top cover, thereby opening and closing the two sets of dust covers. Press the two sets of inserting blocks inserted into the two sets of inserting holes on the outer wall of the equipment top cover with both hands. The two sets of return springs connected to the limiting block on one side of the inserting block can retract into the sliding groove with their elasticity, thereby making it easier for the staff to remove the equipment top cover from the equipment rear cover and improving the disassembly efficiency of the device.

[0014] 2. In this utility model, the user can use multiple sets of guide through holes on the outer wall of the circuit board to fit into multiple sets of guide pillars on the inner wall of the top of the device's rear cover, and connect with the snap-fit ​​groove on one side, thereby stably installing the circuit board. Multiple sets of heat dissipation holes on the outer wall of the device's top cover can dissipate the heat generated by the electronic components inside the device, and multiple sets of connection holes on the outer wall of the device's top cover can connect the electrical circuits to the connecting pipes on the circuit board, making the device easy for the user to operate and improving the device's practicality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a frequency converter with high disassembly efficiency according to this utility model.

[0017] Figure 2 This is a top view of a frequency converter with high disassembly efficiency according to the present invention.

[0018] Figure 3 This is a bottom view of the structure of a frequency converter with high disassembly efficiency according to the present invention.

[0019] Figure 4 This is an exploded structural diagram of a frequency converter with high disassembly efficiency according to the present invention.

[0020] In the diagram: 1. Rear cover of the equipment; 2. Sliding groove; 3. Return spring; 4. Inserting block; 5. Limiting block; 6. Top cover of the equipment; 7. Inserting hole; 8. Movable flap; 9. Dust cover; 10. Elastic buckle; 11. Connecting magnet; 12. Guide support; 13. Snap-fit ​​groove; 14. Circuit board; 15. Guide through hole; 16. Connecting pipe; 17. Heat dissipation hole; 18. Connecting hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] This utility model provides, for example Figure 1-4The inverter shown includes a rear cover 1. Two sets of sliding grooves 2 are symmetrically distributed at the upper and lower ends of the outer wall of the rear cover 1. Two sets of return springs 3 are installed on the inner wall of each sliding groove 2. A locking block 4 is located on the inner wall of each sliding groove 2 near the return spring 3. Two sets of limiting blocks 5 are symmetrically distributed on the inner wall of the locking block 4. The user can fix one end of each set of return springs 3 into the sliding groove 2 on the outer wall of the rear cover 1. The locking block 4 is movably inserted into the sliding groove 2, and the limiting blocks 5 on its inner wall are engaged with the inner wall of the return spring 3. This allows the return spring 3 to move directionally within the sliding groove 2 due to its elasticity, and the locking block 4 can retract upon pressure from the operator. In the sliding groove 2, after the locking block 4 is released, it is reset by the elasticity of the reset spring 3. The top outer wall of the equipment rear cover 1 is provided with an equipment top cover 6. The outer wall of the equipment top cover 6 is provided with two sets of locking holes 7. The user can lock the equipment top cover 6 into the top of the equipment rear cover 1 and fix it on the equipment rear cover 1 by the reset of the locking block 4. The bottom of the outer wall of the equipment top cover 6 near the locking hole 7 is provided with a movable flap 8. A dust cover 9 is provided on one side of the movable flap 8. The top outer wall of the dust cover 9 is provided with an elastic buckle 10. The user can connect the dust cover 9 to the movable flap 8 on the equipment top cover 6 so that the dust cover 9 can open and close with the rotation of the movable flap 8. The elastic buckle 10 is located in the middle of the top outer wall of the dust cover 9 so that the connection between the elastic buckle 10 and the dust cover 9 is firm.

[0023] Two sets of connecting magnets 11 are provided on the outer wall of the equipment top cover 6 near the top of the insertion hole 7. Users can fix the two sets of connecting magnets 11 symmetrically to the upper and lower ends of the outer wall of the equipment top cover 6, so that the dust cover 9 and the elastic buckle 10 of its outer wall are attracted and fixed when they are close to the connecting magnets 11. This allows the dust cover 9 to cover the insertion block 4, thereby preventing the equipment top cover 6 from falling off due to accidental contact by the staff.

[0024] The top inner wall of the equipment rear cover 1 is provided with multiple sets of guide pillars 12, which are evenly distributed on the top inner wall of the equipment rear cover 1. The outer diameter of the guide pillar 12 is the same as the inner diameter of the guide through hole 15.

[0025] A snap-fit ​​groove 13 is provided on the top outer wall of the device rear cover 1 away from the guide pillar 12. A circuit board 14 is provided on the inner wall of the snap-fit ​​groove 13. The user can fit the circuit board 14 into the inner wall of the snap-fit ​​groove 13, so that the circuit board 14 can be easily installed in the device rear cover 1.

[0026] The top outer wall of the circuit board 14 has multiple sets of guide holes 15, which are evenly distributed on the top outer wall of the circuit board 14. The side outer wall of the circuit board 14 is provided with multiple sets of connecting tubes 16. The user can insert the guide holes 15 on the outer wall of the circuit board 14 into the guide support 12, and the connecting tubes 16 on the side outer wall are connected to the circuit in the device through wires, so that the circuit board 14 can be stably installed inside the back cover 1 of the device.

[0027] Multiple sets of heat dissipation holes 17 are opened on the outer wall of the device rear cover 1. The multiple sets of heat dissipation holes 17 are evenly distributed on the outer wall of the device rear cover 1. The heat generated by the operation of the electronic components inside the device can be discharged through the multiple sets of heat dissipation holes 17 on the outer wall of the device rear cover 1, so that the device can operate for a long time.

[0028] The outer wall of the device top cover 6 has multiple sets of connection holes 18, through which the user can insert the wire harness into the connection holes 18 on the outer wall of the device top cover 6 to connect to the connection tube 16 on the outer wall of the circuit board 14. The snap-fit ​​of the connection tube 16 can support the wire harness, so that the device can change the power frequency in the circuit, making the device easy for the user to connect.

[0029] Working principle: Users can pull the elastic buckles 10 on the dust covers 9 connected to the movable flap 8 at the upper and lower ends of the outer wall of the top cover 6, thereby pulling the elastic buckles 10 from the connecting magnets 11 on the inner wall of the top cover 6, thus opening and closing the two sets of dust covers 9. Users can then press the locking blocks 4 inserted into the two sets of locking holes 7 on the outer wall of the top cover 6. The two sets of return springs 3 connected to the limiting block 5 on one side of the locking block 4 will retract into the sliding groove 2 due to their elasticity, facilitating the removal of the top cover 6 from the rear cover 1 and improving the disassembly efficiency of the device. Users can also access the circuit... Multiple sets of guide through holes 15 on the outer wall of the board 14 are fitted onto multiple sets of guide pillars 12 on the inner top wall of the equipment rear cover 1, and connected to the snap-fit ​​groove 13 on one side, thereby stably installing the circuit board 14. Multiple sets of heat dissipation holes 17 on the outer wall of the equipment top cover 6 can dissipate the heat generated by the electronic components inside the device, and can connect the electrical circuits to the connecting pipes 16 on the circuit board 14 through multiple sets of connection holes 18 on the outer wall of the equipment top cover 6, making the device easy for users to operate and improving the practicality of the device. This realizes the function of improving the disassembly efficiency and practicality of a frequency converter with high disassembly efficiency.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A frequency converter with high disassembly efficiency, comprising a rear cover (1), characterized in that: The outer wall of the device rear cover (1) is provided with two sets of sliding grooves (2), which are symmetrically distributed at the upper and lower ends of the outer wall of the device rear cover (1). The inner wall of the sliding groove (2) is provided with two sets of return springs (3). The inner wall of the sliding groove (2) is provided with a locking block (4) on the side of the inner wall of the sliding groove (2) close to the return spring (3). The inner wall of the locking block (4) is provided with two sets of limiting blocks (5), which are symmetrically distributed on the inner wall of the locking block (4). The top outer wall of the device rear cover (1) is provided with a device top cover (6). The outer wall of the device top cover (6) is provided with two sets of locking holes (7). The bottom of the outer wall of the device top cover (6) close to the locking hole (7) is provided with a movable flap (8). A dust cover (9) is provided on one side of the movable flap (8). The top outer wall of the dust cover (9) is provided with an elastic buckle (10).

2. The frequency converter with high disassembly efficiency according to claim 1, characterized in that: Two sets of connecting magnets (11) are provided on the outer wall of the device top cover (6) near the top of the locating hole (7).

3. The frequency converter with high disassembly efficiency according to claim 1, characterized in that: The top inner wall of the device rear cover (1) is provided with multiple sets of guide pillars (12), and the multiple sets of guide pillars (12) are evenly distributed on the top inner wall of the device rear cover (1).

4. A frequency converter with high disassembly efficiency according to claim 3, characterized in that: The top outer wall of the device back cover (1) is provided with a snap-fit ​​groove (13) on the side away from the guide pillar (12), and a circuit board (14) is provided on the inner wall of the snap-fit ​​groove (13).

5. A frequency converter with high disassembly efficiency according to claim 4, characterized in that: The top outer wall of the circuit board (14) has multiple sets of guide holes (15), which are evenly distributed on the top outer wall of the circuit board (14). The side outer wall of the circuit board (14) is provided with multiple sets of connecting pipes (16).

6. A frequency converter with high disassembly efficiency according to claim 1, characterized in that: The outer wall of the device rear cover (1) has multiple sets of heat dissipation holes (17), which are evenly distributed on the outer wall of the device rear cover (1).

7. A frequency converter with high disassembly efficiency according to claim 1, characterized in that: The outer wall of the equipment top cover (6) has multiple sets of connection holes (18).

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