A frequency converter integrated with a motor

Abstract

The utility model discloses a kind of frequency converter integrated with motor, including motor, the upper shell and lower shell of fixed connection, and control panel and drive board, motor includes main shell and the rear shell fixedly connected in the tail end of main shell, hollow mounting seat is integrally connected on main shell, lower shell is installed on mounting seat, control panel is installed in the inside of lower shell, drive board is installed in the inside of rear shell.The utility model is on the basis of being able to realize integrated with motor, control panel and drive board are installed separately, i.e., control panel is installed in the shell of frequency converter, while drive board is installed in the rear shell of motor, and the heat dissipation rib on rear shell and the fan of motor itself are used to realize the heat dissipation of drive board (main heating component), the radiator of original large space occupation is saved, so as to effectively reduce the overall size of frequency converter, reduce the space occupied, can well adapt to limited installation space.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, specifically a frequency converter that is integrated with a motor. Background Technology

[0002] A frequency converter is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of the motor's power supply. With the continuous improvement of industrial automation, frequency converters have been widely used.

[0003] Currently, to save installation space and facilitate wiring to the controlled motor, some frequency converters are typically mounted directly onto the motor housing. The internal components of existing frequency converters mainly include a control board, drive board, fan, and heat sink, which are usually housed within the converter's housing. This requires the housing to have sufficient space to accommodate these components. When the frequency converter is directly mounted onto the motor housing, it often occupies a significant amount of space. Given the motor's shape (cylindrical) and the limited space available, maintaining sufficient internal space while adapting to the limited installation space becomes a contradictory problem. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects and deficiencies of the existing technology and provide a frequency converter that is integrated with the motor. While achieving integrated installation with the motor, it simplifies the structure and size, reduces the space occupied, and adapts to limited installation space.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A frequency converter integrated with a motor includes a motor, an upper shell and a lower shell fixedly connected to each other, a control board and a drive board. The motor includes a main shell and a rear shell fixedly connected to the tail end of the main shell. The main shell is integrally connected to a hollow mounting base, the lower shell is mounted on the mounting base, the control board is mounted inside the lower shell, and the drive board is mounted inside the rear shell.

[0007] Furthermore, the bottom of the lower shell is provided with a window, and the main shell is provided with a channel connecting the window and the rear shell for the wiring connecting the control board and the drive board to pass through.

[0008] Furthermore, a waterproof connector is fixedly connected to the side wall of the lower shell for leading out the wiring of the control board.

[0009] Furthermore, the four corners of the mounting base are respectively provided with first threaded blind holes, and the four corners of the window are respectively provided with first through holes. First screws pass through the first through holes from top to bottom and are screwed into the corresponding first threaded blind holes to install the lower shell onto the mounting base.

[0010] Furthermore, on the bottom surface of the lower shell, a first support column is integrally connected to each of the opposite sides. The top surface of the first support column is provided with a second threaded blind hole extending downward. A second screw passes through the through holes on both sides of the control board from top to bottom and is screwed into the corresponding second threaded blind hole to install the control board on the first support column.

[0011] Furthermore, a plurality of second support columns are integrally connected to the inner surface of the rear side of the rear shell. The front end face of the second support column is provided with a third threaded blind hole extending rearward. A third screw passes through the through hole on the drive plate from front to back and is screwed into the corresponding third threaded blind hole to install the drive plate in the rear shell.

[0012] Furthermore, several heat dissipation fins are integrally connected around the rear shell in a circumferential direction.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, while enabling integrated installation with the motor, separates the control board and drive board. The control board is installed in the inverter housing, while the drive board is installed in the rear housing of the motor. The heat dissipation fins on the rear housing and the motor's built-in fan are used to dissipate heat from the drive board (the main heat-generating component), eliminating the need for the original space-consuming heat sink. This effectively reduces the overall size of the inverter, minimizes space usage, and makes it well-suited for installations in limited spaces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0016] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0017] Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0018] Figure 4 This is an exploded view of the structure of the motor in this utility model.

[0019] Figure 5 This is an exploded view of the frequency converter structure in this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figure 1-5 A frequency converter integrated with a motor includes a motor 3, an upper shell 1 and a lower shell 2 fixedly connected to each other, a control board 4 and a drive board 5. The motor 3 includes a main shell 31 and a rear shell 32 fixedly connected to the tail end of the main shell 31. A hollow mounting base 6 is integrally connected to the main shell 31. The lower shell 2 is mounted on the mounting base 6. The control board 4 is mounted inside the lower shell 2. The drive board 5 is mounted inside the rear shell 32.

[0022] It should be noted that the motor 3 also includes a cover 33 fixedly connected to the tail end of the main housing 31 and a fan 34 located on the rear side of the rear housing 32. The cover 33 encloses the rear housing 32 and the fan 34 inside it, and the fan 34 is driven to rotate by the rotor of the motor.

[0023] In addition, the drive board 5 should have a through hole through which the rotor of the motor can pass (not shown in the figure).

[0024] In this utility model, the bottom of the lower shell 2 is provided with a window 7, and the main shell 31 is provided with a channel 8 that connects the window 7 and the rear shell, so that the wiring connecting the control board 4 and the drive board 5 can pass through.

[0025] In this utility model, a waterproof connector 9 is fixedly connected to the side wall of the lower shell 2 to lead out the wiring of the control board 4, thereby achieving a good dustproof and waterproof effect.

[0026] In this utility model, the four corners of the mounting base 6 are respectively provided with first threaded blind holes 10, and the four corners of the window 7 are respectively provided with first through holes 11. A first screw (not shown in the figure) passes through the first through hole 11 from top to bottom and is screwed into the corresponding first threaded blind hole 10, so as to realize the installation of the lower shell 2 on the mounting base 6.

[0027] In this utility model, a first support column 12 is integrally connected to the bottom surface of the lower shell 2 on both opposite sides. The top surface of the first support column 12 is provided with a second threaded blind hole 13 extending downward. A second screw (not shown in the figure) passes through the through holes (not shown in the figure) on both sides of the control plate 4 from top to bottom and is screwed into the corresponding second threaded blind hole 13, so as to realize the installation of the control plate 4 on the first support column 12, that is, the installation inside the lower shell 2.

[0028] In this utility model, a plurality of second support columns (not shown in the figure) are integrally connected to the inner surface of the rear side of the rear shell 32. The front end face of the second support column is provided with a third threaded blind hole (not shown in the figure) extending rearward. A third screw (not shown in the figure) passes through the through hole on the drive plate 5 from front to back and is screwed into the corresponding third threaded blind hole, thereby realizing the installation of the drive plate 5 inside the rear shell 32.

[0029] In this invention, a plurality of heat dissipation fins 14 are integrally connected around the rear shell 32 in a circumferential direction to provide heat dissipation for the drive board 5.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] When in use, the fan 34 is driven to rotate by the rotor of the motor.

[0032] The heat generated by the drive board 5 (the main heat-generating component) during operation is dissipated into the interior of the housing 33 by several heat dissipation fins 14, and then discharged through the ventilation holes on the housing 33 by the airflow generated by the fan 34.

[0033] In addition, the heat generated when the control board 4 is working can also be dissipated to the interior of the rear shell 32 through the window 7 and the hole 8, and then dissipated to the interior of the cover 33 by several heat dissipation fins 14. Finally, it is driven by the airflow generated by the fan 34 and discharged through the ventilation holes on the cover 33.

[0034] Because this utility model separates the control board 4 and the drive board 5, that is, the control board 4 is installed in the lower shell 2, while the drive board 5 is installed in the rear shell 32 of the motor, and the heat dissipation fins 14 on the rear shell 32 and the fan 34 built into the motor are used to dissipate heat from the drive board 5 (the main heat-generating component), the original heat sink that occupies a large space is eliminated, thereby effectively reducing the overall size of the frequency converter, reducing the space occupied, and making it well adaptable to limited installation space.

[0035] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0036] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A frequency converter integrated with a motor, comprising a motor, an upper housing and a lower housing fixedly connected thereto, a control board and a drive board, wherein the motor comprises a main housing and a rear housing fixedly connected to the tail end of the main housing, characterized in that: The main shell is integrally connected to a hollow mounting base, the lower shell is mounted on the mounting base, the control board is mounted inside the lower shell, and the drive board is mounted inside the rear shell.

2. The frequency converter integrated with the motor according to claim 1, characterized in that: The bottom of the lower shell is provided with a window, and the main shell is provided with a channel connecting the window and the rear shell for the wiring connecting the control board and the drive board to pass through.

3. The frequency converter integrated with the motor according to claim 1, characterized in that: A waterproof connector is fixedly connected to the side wall of the lower shell for leading out the wiring of the control board.

4. The frequency converter integrated with the motor according to claim 2, characterized in that: The mounting base has first threaded blind holes at its four corners, and the window has first through holes at its four corners. First screws pass through the first through holes from top to bottom and are screwed into the corresponding first threaded blind holes to install the lower shell onto the mounting base.

5. The frequency converter integrated with the motor according to claim 1, characterized in that: On the bottom surface of the lower shell, a first support column is integrally connected to each of the opposite sides. The top surface of the first support column is provided with a second threaded blind hole extending downward. A second screw passes through the through holes on both sides of the control board from top to bottom and is screwed into the corresponding second threaded blind hole to install the control board on the first support column.

6. The frequency converter integrated with the motor according to claim 1, characterized in that: A plurality of second support columns are integrally connected to the inner surface of the rear side of the rear shell. The front end face of the second support column is provided with a third threaded blind hole extending rearward. A third screw passes through the through hole on the drive plate from front to back and is screwed into the corresponding third threaded blind hole to install the drive plate in the rear shell.

7. A frequency converter integrated with a motor according to claim 1, characterized in that: Several heat dissipation fins are integrally connected around the rear shell in a circumferential direction.

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