Motor integrated with frequency converter

Abstract

The utility model provides a motor integrated with a frequency converter, which belongs to the technical field of integrated motors and comprises a motor body, a frequency converter bottom frame is mounted at the input end of the motor body through bolts, and a control board and a driving board assembly are mounted in the frequency converter bottom frame. The inner side face of the frequency converter bottom frame is connected with the IGBT in an attached mode through heat conduction silicone grease, the IGBT is fixedly connected with the interior of the frequency converter bottom frame through bolts, the pluggable shaft barrel is installed in the frequency converter bottom frame, and the frequency converter bottom frame is installed in the middle of the shaft barrel. The motor all-in-one machine has the advantages that the size is reduced under the condition that the performance is not changed, the scene adaptability is high, the motor all-in-one machine is assembled and arranged, the maintenance is more convenient and faster, the cost during connection of the motor all-in-one machine is also greatly reduced, and the energy is further saved.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated motors, in particular to a motor integrated with a frequency converter. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. The motor is usually represented by the letter M (D in the old standard) in the circuit. Its main function is to generate driving torque as a power source for electrical appliances or various machines. As a type of motor, the electric motor mainly consists of an electromagnet winding or a distributed stator winding for generating a magnetic field, a rotating armature or rotor and other accessories. Under the action of the rotating magnetic field of the stator winding, the current in the armature will be affected by the magnetic field and rotate, realizing the mutual conversion of electrical energy and mechanical energy.

[0003] However, using the inverter separately from the motor may cause some inconveniences, mainly including the following aspects: Wiring complexity: When the inverter is installed separately from the motor, a long cable needs to be laid to connect the two, which not only increases the complexity of wiring, but also may introduce electromagnetic interference and signal attenuation problems, affecting the stability and performance of the system. Difficult maintenance: Separate installation means that the inverter and motor need to be handled separately during maintenance or overhaul, which increases the difficulty and workload of maintenance. In addition, if the inverter or motor fails, it may take more time and resources to locate and solve the problem. Increased costs: Due to the need for additional cables and connecting equipment, as well as possible increased maintenance costs, the installation of the inverter separately from the motor usually leads to an increase in overall costs. Reduced efficiency: Long-distance cable connections may cause energy loss, thereby reducing the overall efficiency of the system. In addition, due to the impedance and capacitance effects of the cable, phase differences and voltage drops may be introduced, further affecting the operating performance of the motor. Limited control flexibility: In some applications, the speed and power of the motor need to be adjusted in real time to match the changes in the load. If the inverter is installed separately from the motor, this real-time adjustment capability may be limited, affecting the control accuracy and response speed of the system.

[0004] Therefore, it is necessary to provide a motor with an integrated frequency converter to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a motor integrated with a frequency converter.

[0006] The utility model provides a motor integrated with a frequency converter, comprising: a motor, an input end of the motor is mounted with a frequency converter bottom frame via bolts, and a control board and a drive board assembly are mounted inside the frequency converter bottom frame.

[0007] Preferably, an IGBT tube is bonded to the inner side surface of the inverter bottom frame via thermal conductive silicone grease, and the IGBT tube is fixedly connected to the inside of the inverter bottom frame via bolts.

[0008] Preferably, a pluggable shaft cylinder is installed inside the inverter bottom frame, and the inverter bottom frame is installed in the middle of the shaft cylinder.

[0009] Preferably, the inverter bottom frame is electrically connected with a side wiring port, and the side wiring port is fixedly connected to the inverter bottom frame by threads.

[0010] Preferably, a shaft keyway is provided at the front end of the central shaft of the motor, a through hole for use with a shaft cylinder is provided in the middle of the inverter bottom frame, a key pin is fixedly connected to the middle of the shaft keyway, and a sealing ring is fixedly connected inside the shaft cylinder.

[0011] Preferably, one end of the inverter bottom frame is fixedly connected to a fan cover, a fan sleeve is installed inside the fan cover, a fan blade is installed in the middle of the fan sleeve, and the fan blade is rotatably connected to the inside of the fan cover through a limit spring.

[0012] Compared with the related art, the motor with integrated frequency converter provided by the utility model has the following advantages:

[0013] Beneficial effects:

[0014] 1. A motor with integrated frequency converter can greatly compress the volume by taking advantage of the compactness of modular integrated structure, so that the volume can be reduced without changing the performance, and it has strong adaptability to different scenarios.

[0015] 2. A motor with integrated frequency converter is more convenient and quick to assemble, set up and maintain through the motor all-in-one machine. The cost of connecting the motor all-in-one machine is also greatly reduced, further saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall split structure of the utility model.

[0017] Numbers in the figure: 1. Fan cover; 2. Limiting spring; 3. Fan blade; 4. Spring; 5. Fan sleeve; 6. Shaft tube; 7. Inverter bottom frame; 8. IGBT tube; 9. Control board and drive board assembly; 10. Key pin; 11. Motor; 12. Side wiring port; 13. Sealing ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 , an embodiment of the utility model provides a motor integrated with a frequency converter, comprising: a motor, an input end of the motor is mounted with a frequency converter bottom frame by bolts, and a control board and a drive board assembly are mounted inside the frequency converter bottom frame;

[0020] Apply thermal grease to the metal surface of the IGBT tube 8, and fit the metal surface to the smooth surface inside the inverter bottom frame 7. Pre-tighten the screws, install the inverter drive board and control board 9 into the inverter bottom frame 7, and pay attention to the IGBT pin holes on the drive board and the IGBT pins. After tightening the screws, insert the shaft tube 6 into the inverter base, tighten the screws in sequence, connect the wires through the wiring port 12 on the side of the inverter bottom frame 7, and then move the assembled whole close to the motor 11, and connect the motor wires to the terminal block inside the inverter. Then push the inverter base frame 7 to be coaxial with the motor 11 and overlap the step mating surface, tighten the screws in sequence, put the sealing ring 13 on, put the key pin 10 into the keyway of the transmission shaft, insert the fan sleeve 5 into the fan blade 3, then clamp the fan blade retaining spring 4 and install it into the shaft sleeve on the motor shaft, finally clamp the fan assembly limit retaining spring 2, install the fan cover 1, and tighten the screws in sequence. The modular integrated structure is compact, can greatly compress the volume, has strong adaptability to scenarios, is more convenient to assemble and maintain the all-in-one motor, and reduces the connection cost of the all-in-one motor.

[0021] The inner side surface of the inverter bottom frame is connected with an IGBT tube through thermal conductive silicone grease, and the IGBT tube is fixedly connected to the inside of the inverter bottom frame through bolts.

[0022] A pluggable shaft cylinder is installed inside the inverter bottom frame, and the inverter bottom frame is installed in the middle of the shaft cylinder.

[0023] The electrical connection of the inverter bottom frame is provided with a side wiring port, and the side wiring port is fixedly connected to the inverter bottom frame through threads.

[0024] A shaft keyway is provided at the front end of the central shaft of the motor, a through hole for matching with the shaft cylinder is provided in the middle of the bottom frame of the frequency converter, a key pin is fixedly connected in the middle of the shaft keyway, and a sealing ring is fixedly connected in the shaft cylinder.

[0025] A fan cover is fixedly connected to one end of the inverter bottom frame, a fan shaft sleeve is installed inside the fan cover, a fan blade is installed in the middle of the fan shaft sleeve, and the fan blade is rotatably connected to the inside of the fan cover through a limit clamp spring.

[0026] During operation, apply thermal grease to the metal surface of the IGBT tube 8, and fit the metal surface to the smooth surface inside the inverter bottom frame 7. Pre-tighten the screws, install the inverter drive board and control board 9 into the inverter bottom frame 7, and pay attention to the IGBT pin holes on the drive board and the IGBT pins, then tighten the screws and solder. Tighten the screws in sequence, insert the shaft tube 6 into the inverter base, tighten the screws in sequence, connect the wires through the wiring port 12 on the side of the inverter bottom frame 7, and then move the assembled whole close to the motor 11, and connect the motor wires to the terminal block inside the inverter. Then push the inverter base frame 7 to be coaxial with the motor 11 and overlap the step mating surface, tighten the screws in sequence, put the sealing ring 13 on, put the key pin 10 into the keyway of the transmission shaft, insert the fan sleeve 5 into the fan blade 3, then clamp the fan blade retaining spring 4 and install it into the shaft sleeve on the motor shaft, finally clamp the fan assembly limit retaining spring 2, install the fan cover 1, and tighten the screws in sequence. The modular integrated structure is compact, can greatly compress the volume, has strong adaptability to scenarios, is more convenient to assemble and maintain the all-in-one motor, and reduces the connection cost of the all-in-one motor.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor integrated with a frequency converter, characterized in that: include: A motor (11), wherein the input end of the motor (11) is mounted with a frequency converter bottom frame (7) via bolts, and a control board and a drive board assembly (9) are mounted inside the frequency converter bottom frame (7).

2. The motor integrated with a frequency converter according to claim 1, characterized in that: The inner side surface of the frequency converter bottom frame (7) is bonded and connected to an IGBT tube (8) via heat-conducting silicone grease, and the IGBT tube (8) is fixedly connected to the inside of the frequency converter bottom frame (7) via bolts.

3. The motor integrated with a frequency converter according to claim 1, characterized in that: A pluggable shaft cylinder (6) is installed inside the frequency converter bottom frame (7), and the frequency converter bottom frame (7) is installed in the middle of the shaft cylinder (6).

4. The motor integrated with a frequency converter according to claim 1, characterized in that: The inverter bottom frame (7) is electrically connected to a side wiring port (12), and the side wiring port (12) is fixedly connected to the inverter bottom frame (7) by means of threads.

5. The motor integrated with a frequency converter according to claim 1, characterized in that: A shaft keyway is provided at the front end of the central axis of the motor (11), a through hole for matching with the shaft cylinder (6) is provided in the middle of the inverter bottom frame (7), a key pin (10) is fixedly connected in the middle of the shaft keyway, and a sealing ring (13) is fixedly connected inside the shaft cylinder (6).

6. The motor integrated with a frequency converter according to claim 1, characterized in that: One end of the inverter bottom frame (7) is fixedly connected to a fan cover (1), a fan shaft sleeve (5) is installed inside the fan cover (1), a fan blade (3) is installed in the middle of the fan shaft sleeve (5), and the fan blade (3) is rotatably connected to the inside of the fan cover (1) through a limit clamp (2).

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