Novel frequency converter and permanent magnet synchronous motor integrated equipment

Abstract

The utility model relates to the technical field of frequency converters, and discloses novel frequency converter and permanent magnet synchronous motor integrated equipment, which comprises a motor and a frequency converter, the frequency converter is welded on the upper surface of the motor, the motor comprises a shell, the left side and the right side of the shell are respectively provided with a shell cover I and a shell cover II, and the outer wall of the shell cover II is provided with a plurality of heat dissipation holes. Connecting rods penetrate through the inner walls of the peripheries of the first shell cover and the second shell cover, and the outer walls, close to the first shell cover and the second shell cover, of the connecting rods are in threaded connection with nuts correspondingly. According to the utility model, through the arrangement of the shell cover and the connecting rod, in the use process of the equipment, internal components of the motor are protected through the shell cover I, the shell and the shell cover II, when the shell cover I needs to be disassembled for maintenance, the nut on the shell cover I is unscrewed, and then the shell cover I is taken out from the connecting rod, and when the motor needs to be disassembled for maintenance, the nut on the shell cover I is taken out from the connecting rod. And the nut on the shell cover II is detached, and then the shell cover II is taken out from the connecting rod, so that the flexibility of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converter equipment, in particular to novel frequency converter permanent magnet synchronous motor integrated equipment. Background Art

[0002] At present, in the field of oil drilling rigs, most of the solutions for AC variable frequency drive systems adopt a combination of motors, inverters, and variable frequency cables. Each part is an independent unit. The inverter is installed in the control room, and the motor is placed on-site to drive the actuator. The variable frequency cable is used to transmit electrical energy. When in use, it is connected through cables and cooperates with control systems such as switch cabinets and control cabinets.

[0003] The application number is CN202120681089.8, which discloses an integrated device of a frequency converter and a motor, wherein the integrated device of the frequency converter and the motor comprises: a first heat dissipation device (1), a second heat dissipation device (2), a third heat dissipation device (3), a motor (4), and a frequency converter (5). The frequency converter (5) and the motor (4) are organically combined together through the coordination of the above components, and the coordinated work of each system ensures the normal operation of the frequency converter. The utility model breaks the traditional design method and reduces the transportation unit. After the frequency converter and the motor are integrated into one, surge voltage can be effectively eliminated, overvoltage shock to the motor and various accessory losses can be reduced, the influence of the frequency converter on the insulation of the motor can be reduced, and the intermediate connecting cables and copper busbars or connectors can be removed, so that the device cost is lower and installation, maintenance and transportation are more convenient.

[0004] The above document discloses an integrated inverter and motor device with the following defects: when the internal components of the motor are damaged, the motor needs to be disassembled externally to repair or replace the internal components. The device does not provide a corresponding detachable structure for the motor. When the motor is damaged, it cannot be disassembled for repair, which shortens the service life of the device.

[0005] It can be seen from this that the existing inverter and motor integrated equipment does not have the function of disassembling the outside of the motor for repair and replacement. It is necessary to improve the existing deficiencies and provide a function that can disassemble the outside of the motor for repair and replacement. Utility Model Content

[0006] The purpose of the utility model is to provide a novel frequency converter permanent magnet synchronous motor integrated equipment to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a new type of inverter permanent magnet synchronous motor integrated equipment, including a motor and a frequency converter, the frequency converter is welded on the upper surface of the motor, the motor includes a shell, the left and right sides of the shell are respectively provided with a shell cover 1 and a shell cover 2, the outer wall of the shell cover 2 is provided with a plurality of heat dissipation holes, the inner walls around the shell cover 1 and the shell cover 2 are penetrated by connecting rods, and the connecting rods are respectively threadedly connected with nuts on the outer walls close to the shell cover 1 and the shell cover 2. The purpose of such a setting is that during the use of the equipment, the motor is protected by the shell cover 1, the shell and the shell cover 2 for internal components. When it is necessary to remove the shell cover for maintenance, the nut on the shell cover 1 is screwed off, and the shell cover 1 is taken out from the connecting rod. When it is necessary to remove the motor for maintenance, the nut on the shell cover 2 is removed, and the shell cover 2 is taken out from the connecting rod, thereby improving the flexibility of the equipment.

[0009] Furthermore, a clamping groove is provided on the outer wall of the shell cover 1, and a clamping ring is rotatably connected to the inner wall of the clamping groove. The purpose of such arrangement is that during the use of the equipment, the clamping groove limits the clamping ring, and the motor drives the clamping ring to rotate.

[0010] Furthermore, a rotating shaft is welded on one side outer wall of the clamp ring, and a limiting groove is provided on one side outer wall of the rotating shaft. The purpose of such a setting is that during the use of the equipment, the clamp ring drives the rotating shaft to rotate, and the limiting groove limits the connecting piece in the rotating shaft so that it is not easy to fall off.

[0011] Furthermore, a machine is welded on the upper surface of the shell, a port is welded on one side of the outer wall of the machine, and a shell cover 3 is provided on the upper surface of the machine. The purpose of such a setting is that during the use of the equipment, the port is used to connect the power supply to operate the machine, and the shell cover 3 provides dust protection for the internal components of the machine.

[0012] Furthermore, bolts are threadedly connected on the inner walls of the shell cover 3, and the bolts penetrate the shell cover 3 and extend to the inner wall of the machine. The purpose of this arrangement is that when the frequency converter needs to be disassembled for maintenance during the use of the equipment, all the bolts can be removed and the shell cover 3 can be removed from the machine.

[0013] Furthermore, bases are welded on the outer walls on both sides of the bottom of the shell, mounting holes are opened on the outer walls on both sides of the base, and reinforcement blocks are welded on the base and the outer wall of the shell. The purpose of this arrangement is that during the use of the equipment, the two bases support the bottom of the shell, and the reinforcement blocks reinforce the connection between the base and the shell. When the equipment needs to be fixed on the ground, screws can be connected to the ground through the mounting holes.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model provides a shell cover and a connecting rod. During the use of the equipment, the motor is protected by the shell cover 1, the housing and the shell cover 2 for internal components. When it is necessary to remove the shell cover for maintenance, the nut on the shell cover 1 is unscrewed and the shell cover 1 is taken out from the connecting rod. When it is necessary to remove the motor for maintenance, the nut on the shell cover 2 is removed and the shell cover 2 is taken out from the connecting rod, thereby improving the flexibility of the equipment.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the motor split structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the motor part of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. motor; 100. mounting hole; 101. shell; 102. base; 103. reinforcement block; 104. shell cover one; 105. slot; 106. clamping ring; 107. shaft; 108. limit slot; 109. nut; 110. connecting rod; 111. shell cover two; 112. heat dissipation hole; 2. inverter; 200. bolt; 201. machine; 202. port; 203. shell cover three. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 - Figure 4 As shown, the utility model is a novel inverter permanent magnet synchronous motor integrated equipment, including a motor 1 and an inverter 2, the inverter 2 is welded on the upper surface of the motor 1, the motor 1 includes a shell 101, and the left and right sides of the shell 101 are respectively provided with a shell cover 104 and a shell cover 2 111, and the outer wall of the shell cover 2 111 is provided with a plurality of heat dissipation holes 112, and the inner walls around the shell cover 104 and the shell cover 2 111 are penetrated by a connecting rod 110, and the connecting rod 110 is threadedly connected with nuts 109 on the outer walls close to the shell cover 104 and the shell cover 2 111. The purpose of such arrangement is that during the use of the equipment, the motor 1 is protected by the shell cover 104, the housing 101 and the shell cover 2 111 for internal components. When the shell cover 104 needs to be removed for maintenance, the nut 109 on the shell cover 104 is screwed off and the shell cover 104 is then taken out from the connecting rod 110. When the motor 1 needs to be removed for maintenance, the nut 109 on the shell cover 2 111 is removed and the shell cover 2 111 is then taken out from the connecting rod 110. This improves the flexibility of the equipment. When the frequency converter 2 needs to be disassembled for maintenance, the bolts 200 are removed. Remove all of them, just take the shell cover 203 off the machine 201, the port 202 is used to connect the power supply to make the machine 201 operate, the two bases 102 support the bottom of the shell 101, and the reinforcement block 103 reinforces the connection between the base 102 and the shell 101. When the equipment needs to be fixed on the ground, connect the screws to the ground through the mounting holes 100. The slot 105 limits the clamping ring 106, the motor 1 drives the clamping ring 106 to rotate, and the clamping ring 106 drives the rotating shaft 107 to rotate. The limiting slot 108 limits the connecting part in the rotating shaft 107 so that it is not easy to fall off.

[0026] A slot 105 is provided on the outer wall of the shell cover 104, and a collar 106 is rotatably connected to the inner wall of the slot 105. The purpose of this arrangement is that during the use of the equipment, the slot 105 limits the collar 106, and the motor 1 drives the collar 106 to rotate.

[0027] A rotating shaft 107 is welded on one side outer wall of the collar 106, and a limiting groove 108 is provided on one side outer wall of the rotating shaft 107. The purpose of this arrangement is that during the use of the equipment, the collar 106 drives the rotating shaft 107 to rotate, and the limiting groove 108 limits the connector in the rotating shaft 107 so that it is not easy to fall off.

[0028] The upper surface of the housing 101 is welded with a machine 201, a port 202 is welded on one side of the outer wall of the machine 201, and a shell cover 3 203 is provided on the upper surface of the machine 201. The purpose of such a setting is that during the use of the equipment, the port 202 is used to connect the power supply to operate the machine 201, and the shell cover 3 203 protects the internal components of the machine 201 from dust.

[0029] Bolts 200 are threadedly connected on the inner walls of the shell cover 3 203, and the bolts 200 penetrate the shell cover 3 203 and extend to the inner wall of the machine 201. The purpose of this arrangement is that when the frequency converter 2 needs to be disassembled for maintenance during the use of the equipment, all the bolts 200 are removed and the shell cover 3 203 is removed from the machine 201.

[0030] Bases 102 are welded to the outer walls on both sides of the bottom of the shell 101, mounting holes 100 are opened on the outer walls on both sides of the base 102, and reinforcement blocks 103 are welded to the outer walls of the base 102 and the shell 101. The purpose of this arrangement is that during the use of the equipment, the two bases 102 support the bottom of the shell 101, and the reinforcement blocks 103 reinforce the connection between the base 102 and the shell 101. When the equipment needs to be fixed on the ground, screws can be connected to the ground through the mounting holes 100.

[0031] When the equipment is in use, the motor 1 is protected by the shell cover 104, the housing 101 and the shell cover 2 111 for internal components. When the shell cover 104 needs to be removed for maintenance, the nut 109 on the shell cover 104 is screwed off, and the shell cover 104 is then taken out from the connecting rod 110. When the motor 1 needs to be removed for maintenance, the nut 109 on the shell cover 2 111 is removed, and the shell cover 2 111 is then taken out from the connecting rod 110. This improves the flexibility of the equipment. When the frequency converter 2 needs to be disassembled for maintenance, all the bolts 200 are removed. To remove, just remove the shell cover 203 from the machine 201. The port 202 is used to connect the power supply to make the machine 201 operate. The two bases 102 support the bottom of the shell 101. The reinforcement block 103 reinforces the connection between the base 102 and the shell 101. When the equipment needs to be fixed on the ground, the screws can be connected to the ground through the mounting holes 100. The slot 105 limits the clamping ring 106. The motor 1 drives the clamping ring 106 to rotate, and the clamping ring 106 drives the rotating shaft 107 to rotate. The limiting slot 108 limits the connecting part in the rotating shaft 107 so that it is not easy to fall off.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel inverter permanent magnet synchronous motor integrated equipment, comprising a motor (1) and an inverter (2), characterized in that: The frequency converter (2) is welded to the upper surface of the motor (1), and the motor (1) comprises a housing (101). The housing (101) is provided with a housing cover 1 (104) and a housing cover 2 (111) on the left and right sides respectively. The outer wall of the housing cover 2 (111) is provided with a plurality of heat dissipation holes (112). Connecting rods (110) are passed through the inner walls around the housing cover 1 (104) and the housing cover 2 (111). The connecting rods (110) are respectively threadedly connected with nuts (109) on the outer walls close to the housing cover 1 (104) and the housing cover 2 (111).

2. The novel inverter permanent magnet synchronous motor integrated equipment according to claim 1 is characterized in that: A clamping groove (105) is provided on the outer wall of the shell cover (104), and a clamping ring (106) is rotatably connected to the inner wall of the clamping groove (105).

3. The novel inverter permanent magnet synchronous motor integrated equipment according to claim 2 is characterized in that: A rotating shaft (107) is welded on one side outer wall of the clamping ring (106), and a limiting groove (108) is provided on one side outer wall of the rotating shaft (107).

4. The novel inverter permanent magnet synchronous motor integrated equipment according to claim 1 is characterized in that: A machine (201) is welded to the upper surface of the shell (101), a port (202) is welded to an outer wall on one side of the machine (201), and a shell cover three (203) is provided on the upper surface of the machine (201).

5. The novel inverter permanent magnet synchronous motor integrated equipment according to claim 4 is characterized in that: Bolts (200) are threadedly connected to the inner walls of the shell cover three (203), and the bolts (200) penetrate the shell cover three (203) and extend to the inner wall of the machine (201).

6. The novel inverter permanent magnet synchronous motor integrated equipment according to claim 1 is characterized in that: A base (102) is welded to the outer walls on both sides of the bottom of the shell (101), mounting holes (100) are provided on the outer walls on both sides of the base (102), and reinforcement blocks (103) are welded to the outer walls of the base (102) and the shell (101).

Images