An integrated motor

Abstract

The utility model relates to motor technical field, concretely relates to an integrated motor, including frequency conversion motor main part, electric control ware and speed reducer, wherein, frequency conversion motor main body includes stator and rotor, electric control ware can drive and speed regulation to frequency conversion motor main body, make the rotation axis of rotor work with first rotational speed, the speed reducer includes gear set, the input of gear set is connected in the rotation axis, the output of gear set is connected in the output shaft, and the rotational speed of output shaft is second rotational speed, and second rotational speed is the gear ratio of first rotational speed division gear set, second rotational speed is 1450±100r / min or 2850±200r / min. The integrated motor provided by the utility model drives and speed regulation to frequency conversion motor main body through electric control ware, and through setting the gear ratio of speed reducer, make the rotational speed of output shaft final output and the induction motor used in the prior art match, thereby can replace the existing induction motor flexibly, and be applied in the required working scene flexibly.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to an integrated motor. Background Technology

[0002] An induction motor is a type of motor based on the principle of electromagnetic induction. It generates torque through the interaction between the rotating magnetic field produced by the stator windings and the induced current in the rotor, thus converting electrical energy into mechanical energy. Induction motors are widely used in power tools, home appliances, vehicles, and industrial equipment. Compared to traditional brushed motors, induction motors have advantages such as eliminating the need for brushes and commutation devices, requiring less maintenance, and offering higher operational reliability.

[0003] However, ordinary induction motors still have certain shortcomings in practical applications: 1. The speed of an induction motor is fixed, for example, around 3000 r / min or 1500 r / min. When the required speed changes in the working environment, the motor needs to be replaced, which is quite troublesome; 2. The starting current of an induction motor is large, resulting in a large impact, and there is no overcurrent or overvoltage protection function; 3. The power density of an induction motor is usually low, resulting in a large size and weight, which is not conducive to miniaturization and lightweight design; 4. The efficiency of an induction motor is relatively low, and the energy consumption is relatively high; 5. An induction motor is an asynchronous motor, and its dynamic response speed is relatively slow. Utility Model Content

[0004] This invention addresses the technical problems of induction motors in practical applications, such as poor flexibility, large starting impact, and lack of protection functions. It proposes an integrated motor that uses an electronic controller to drive and speed-regulate the main body of the variable frequency motor. By setting an appropriate gear ratio in the reducer, the final output speed of the output shaft matches that of existing induction motors. The height of the output shaft and the mounting hole positions are also appropriately set to meet the flexible needs of different working scenarios. This results in more stable operation, miniaturized and lightweight design, faster dynamic response, higher efficiency, and lower energy consumption.

[0005] The technical solution of this utility model:

[0006] An integrated motor, comprising:

[0007] The variable frequency motor body includes a stator and a rotor;

[0008] An electronic controller is provided, which can drive and adjust the speed of the variable frequency motor body, so that the rotor shaft operates at a first speed.

[0009] The reducer includes a gear set, the input end of which is connected to the rotating shaft, and the output end of which is connected to the output shaft. The rotational speed of the output shaft is a second rotational speed, which is the first rotational speed divided by the gear ratio of the gear set. The second rotational speed is 1450±100 r / min or 2850±200 r / min.

[0010] Furthermore, the main body of the variable frequency motor is a brushless motor body, and the integrated motor also includes a housing, in which the variable frequency motor body and the electronic controller are disposed; the reducer also includes a gearbox, in which the gear set is disposed; the integrated motor also includes an intermediate cover, one side of which is sealed to the opening of the gearbox, and the other side of which is connected to the housing; the gearbox and the intermediate cover are made of metal, and the housing is made of plastic.

[0011] Furthermore, the housing includes an outer shell and a rear cover, the middle cover is located on the front side of the housing, and the rear cover is located on the rear side of the housing; an electrical control cavity and a motor cavity are formed inside the housing, arranged vertically; the electrical control cavity has a first mounting port for installing an electrical controller on its rear side, and the motor cavity has a second mounting port for installing a variable frequency motor body on its front side.

[0012] Furthermore, the electronic controller includes an electronic control box, an electronic control board, and a heat sink. The heat sink is mounted on the electronic control board, and a portion of the electronic control board is mounted inside the opening of the electronic control box. The electronic control cavity is provided with a left limiting part, a right limiting part, an upper limiting part, a lower limiting part, and a front limiting part for limiting the electronic control box. A pressure plate is provided on the rear cover for pressing the electronic control box tightly from the rear.

[0013] Furthermore, the intermediate cover covers the second mounting port, and first bearings are respectively provided on the intermediate cover and inside the motor cavity corresponding to the rotating shaft. A metal bushing is also provided on the outside of the first bearing located inside the motor cavity. The front end of the rotating shaft passes through the intermediate cover and extends into the gearbox. The front end of the rotating shaft is connected to the input gear in the gear set, and the output gear in the gear set is connected to the output shaft. Second bearings are respectively provided on the intermediate cover and inside the gearbox corresponding to the output shaft.

[0014] Furthermore, the front side of the electrical control cavity is provided with an air inlet, and the second mounting port of the motor cavity is formed as an air outlet; the rear side of the electrical control cavity and the rear side of the motor cavity form a communicating space; the motor cavity is also provided with a fan blade, which is mounted on the rotor shaft as it rotates; when the fan blade rotates with the shaft, air enters the electrical control cavity from the air inlet, passes through the electrical controller, enters the motor cavity from the communicating space, passes through the stator and rotor, and is blown out from the air outlet; the motor cavity is also provided with a wind baffle ring, which is located behind the fan blade, and the wind baffle ring and the fan blade are located in front of the stator. The rear end of the wind baffle ring is blocked on the outer ring, forcing the airflow to pass through the flow port in the middle. The fan blade is a centrifugal fan blade, and the outer ring at the front end of the wind baffle ring forms an arc-shaped guide section.

[0015] Furthermore, the air inlet includes a first air inlet and a second air inlet. The first air inlet is provided on the front surface of the housing facing the electronic controller, and the second air inlet is provided on the housing corresponding to the periphery of the electronic controller. Inside the housing, a guide plate is also provided on the periphery of the electronic controller. The guide plate is provided corresponding to the second air inlet and is used to block air on the periphery of the electronic controller and guide it to the electronic controller.

[0016] Furthermore, the air guide plates are disposed on the left and right sides of the electronic controller. Each air guide plate includes a first air guide plate and a second air guide plate. The first air guide plate is used to block at the rear, and the second air guide plate is used to block at the bottom, so that air is directed to the portion of the electronic controller board and heat sink protruding from the electronic controller box. The bottom of the second air guide plate is provided with the upper limit portion, and the left and right sides of the electronic controller box are respectively formed with pressure edges.

[0017] Furthermore, the middle cover has a blocking edge in the middle, which separates an air inlet space corresponding to the electronic control cavity and an air outlet space corresponding to the motor cavity; lateral air inlet slots are formed on the left and right sides of the air inlet space, and lateral air outlet slots are formed on the left and right sides of the air outlet space; the middle cover also has a forward air outlet slot that allows air to be blown to the outside of the gearbox.

[0018] Furthermore, a mounting flange is connected to the front side of the gearbox, and a mounting base plate is connected to the bottom of the gearbox and the housing; the output shaft is configured at a set height.

[0019] After adopting the above technical solution, the integrated motor provided by this utility model has the following beneficial effects compared with the prior art: The integrated motor of this utility model drives and adjusts the speed of the variable frequency motor body through an electronic controller, and by setting the reducer to a suitable gear ratio, the final output speed of the output shaft is 1350~1550 r / min or 2650~3050 r / min, thereby flexibly replacing the existing induction motor and flexibly applying it to the required working scenarios; in addition, the variable frequency motor body is preferably a brushless motor body, which is conducive to the design requirements of miniaturization, lightweight and high efficiency. Attached Figure Description

[0020] Figure 1 This is an exploded view of the integrated motor of this utility model from a first-person perspective.

[0021] Figure 2 This is an exploded view of the integrated motor of this utility model from a second perspective.

[0022] Figure 3 This is a perspective view of the integrated motor of this utility model from one angle;

[0023] Figure 4 This is a perspective view of the integrated motor of this utility model from another angle;

[0024] Figure 5 This is a cross-sectional view of the integrated motor of this utility model;

[0025] Figure 6 This is a schematic diagram of the reducer of this utility model;

[0026] Figure 7 This is a structural schematic diagram of one side of the middle cover of this utility model.

[0027] Figure 8 This is a structural schematic diagram of the other side of the middle cover of this utility model;

[0028] Figure 9 This is a schematic diagram of the structure of the housing and electronic controller of this utility model;

[0029] Figure 10 This is a schematic diagram of the structure of the first mounting port on the casing of this utility model;

[0030] Figure 11 This is a schematic diagram of the structure of the electronic controller of this utility model;

[0031] Figure 12 This is a schematic diagram of the structure of the housing and the main body of the variable frequency motor of this utility model;

[0032] Figure 13This is a schematic diagram of the structure of the second mounting port on the casing of this utility model;

[0033] Figure 14 This is a schematic diagram of the structure of the variable frequency motor body of this utility model;

[0034] Figure 15 This is a schematic diagram of the windshield ring and rotor of this utility model;

[0035] Figure 16 This is a schematic diagram of the structure of the back cover of this utility model.

[0036] in,

[0037] The variable frequency motor consists of: a main body 1, a stator 11, a rotor 12, a shaft 13, a fan blade 14, a wind deflector 15, a flow port 151, and an arc-shaped guide section 152; an electronic controller 2, an electronic control box 21, a pressing edge 211, a mounting hole 212, an electronic control board 22, a PCB board 221, components 222, and a heat sink 23; a reducer 3, a gearbox 31, a gear set 32, an input gear 321, an output gear 322, an output shaft 323, and a locking component 33; and a housing 4, a casing 41, an electronic control cavity 411, a first mounting port 4111, a left limit part 4112, a right limit part 4113, an upper limit part 4114, a lower limit part 4115, a front limit part 4116, an air inlet 4117, and a first air inlet 41171. Second air inlet 41172, air guide plate 4118, first air guide plate 41181, second air guide plate 41182, extension section 41183, motor cavity 412, second mounting port 4121, metal bushing 4122, rectangular rubber ring 4123, connecting space 413, rear cover 42, pressure plate 421, multi-functional cover plate 422, cable inlet hole 423; middle cover 5, first positioning block 51, second positioning block 52, blocking edge 53, air inlet space 54, air outlet space 55, side air inlet slot 56, side air outlet slot 57, front air outlet slot 58; mounting flange 61, mounting base plate 62; first connecting hole 71, second connecting hole 72; first bearing 81, pressure cover 811, second bearing 82. Detailed Implementation

[0038] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0043] like Figure 1-16As shown, this embodiment provides an integrated industrial variable frequency motor, including a variable frequency motor body 1, an electronic controller 2, and a reducer 3. The variable frequency motor body 1 includes a stator 11 and a rotor 12. The electronic controller 2 is a variable frequency motor controller, electrically connected to the variable frequency motor body 1, specifically electrically connected to the windings of the stator 11. It can drive the variable frequency motor body 1 and has a speed regulation function, so that the rotating shaft 13 of the rotor 12 operates at a first speed v1. The reducer 3 includes a gear set 32. The input end of the gear set 32 ​​is connected to the rotating shaft 13, and the output end is connected to the output shaft 323. The speed of the output shaft 323 is a second speed v2, which is the first speed v1 divided by the gear ratio i of the gear set 32, i.e., v2 = v1 / i. In this embodiment, the second speed v2 is set to 1450 ± 100 r / min or 2850 ± 200 r / min.

[0044] In existing technologies, induction motors, based on factors such as grid frequency and the number of pole pairs, typically operate at speeds of around 1500 r / min and 3000 r / min. In this embodiment, the variable frequency motor body 1 is driven and speed-regulated by an electronic controller 2. By setting an appropriate gear ratio in the reducer 3, the final output speed of the output shaft 323 is 1350–1550 r / min or 2650–3050 r / min, thus flexibly replacing existing induction motors and adapting to various working scenarios. Furthermore, the electronic controller 2 enables soft start and overcurrent / overvoltage protection functions. The variable frequency motor body 1 is preferably a high-speed, small-volume motor, such as a brushless motor. Its small size and light weight facilitate miniaturization and weight reduction design requirements. Moreover, brushless motors are synchronous motors with fast dynamic response, high efficiency, and low energy consumption.

[0045] Furthermore, the output shaft 323 can be configured at a set height, which is the same as the height of the original induction motor's output shaft 323. Other mounting positions and dimensions, such as the screw holes for installation connections, can also be set to the same as before, as needed. Besides using a brushless DC motor, the variable frequency motor body 1 can also use other small-volume, high-speed motors such as permanent magnet synchronous motors.

[0046] like Figure 1-8As shown, the integrated motor also includes a housing 4, within which the variable frequency motor body 1 and the electronic controller 2 are disposed; the reducer 3 also includes a gearbox 31, within which the gear set 32 ​​is disposed; the integrated motor also includes an intermediate cover 5, one side of which is sealed to the opening of the gearbox 31 with a sealing ring, and the other side of which is connected to the housing 4. The housing 4 is made of plastic, which improves the pressure resistance rating; the gearbox 31 and the intermediate cover 5 are made of metal, connected by the intermediate cover 5, which facilitates installation and ensures mechanical strength.

[0047] Furthermore, the housing 4 includes a casing 41 and a rear cover 42, with the intermediate cover 5 located on the front side of the casing 41 and the rear cover 42 located on the rear side of the casing 41. The casing 41 contains an electrical control cavity 411 and a motor cavity 412 arranged vertically, with a compact structure. The rear side of the electrical control cavity 411 has a first mounting port 4111 for installing the electrical controller 2, after which the rear cover 42 is connected. The front side of the motor cavity 412 has a second mounting port 4121 for installing the variable frequency motor body 1, after which the intermediate cover 5 is connected.

[0048] like Figure 9-11 As shown, the electronic controller 2 includes an electronic control box 21, an electronic control board 22, and a heat sink 23. The heat sink 23 is mounted on the electronic control board 22, and a portion of the electronic control board 22 is installed inside the opening of the electronic control box 21. Specifically, the electronic control board 22 includes a PCB board 221 and its components 222. The PCB board 221 can be assembled into the opening of the electronic control box 21 by means of snap-fit ​​or other methods, and then fixed with glue. The heat sink 23 can be installed on power devices with high heat generation, such as IGBTs, to improve heat dissipation. The electronic control board 22 and the heat sink 23 are only partially placed inside the opening of the electronic control box 21, with the other part protruding from the opening of the electronic control box 21 to facilitate contact with air for heat dissipation.

[0049] Furthermore, the electrical control cavity 411 is provided with a left limiting part 4112 and a right limiting part 4113 to limit the left and right directions of the electrical control box 21. The electrical control cavity 411 is also provided with an upper limiting part 4114 and a lower limiting part 4115 to limit the up and down directions of the electrical control box 21. The electrical control cavity 411 is also provided with a front limiting part 4116 to limit the front side of the electrical control box 21. The left limiting part 4112, the right limiting part 4113, the upper limiting part 4114, the lower limiting part 4115, and the front limiting part 4116 may be, but are not limited to, limiting ribs formed inside the housing 41. The rear cover 42 is provided with a pressure plate 421. When the rear cover 42 is connected to the housing 41, the pressure plate 421 presses against the rear side of the electrical control box 21, thereby fixing the electrical controller 2 inside the electrical control cavity 411. This installation method eliminates the need for screws or other fasteners, making installation convenient.

[0050] like Figure 5 and Figure 7-9 As shown, one side of the intermediate cover 5 is also provided with multiple first positioning blocks 51, which are positioned by cooperating with the edge of the opening on the gearbox 31 during installation. The gearbox 31 is filled with oil. The intermediate cover 5 covers the second mounting port 4121 of the motor cavity 412. The other side of the intermediate cover 5 is provided with multiple second positioning blocks 52, which are positioned by cooperating with the edge of the second mounting port 4121 of the housing 41 during installation. The intermediate cover 5 and the motor cavity 412 are respectively provided with first bearings 81 corresponding to the rotating shaft 13. The bearings 81 located in the motor cavity 412 are... Figure 5 A metal bushing 4122 is provided on the outer side of the first bearing 81 on the right side to ensure stability; rectangular rubber rings 4123 are also provided on the outer sides of the two first bearings 81 to eliminate the fit clearance. The front end of the rotating shaft 13 extends into the gearbox 31 through the intermediate cover 5. The gear set 32 ​​includes an input gear 321, several intermediate gears and an output gear 322. The front end of the rotating shaft 13 is connected to the input gear 321 in the gear set 32, and the output gear 322 in the gear set 32 ​​is connected to the output shaft 323. When the rotating shaft 13 rotates, it drives the output shaft 323 to rotate through the gear set 32. A second bearing 82 is provided on one side of the intermediate cover 5 and inside the gearbox 31 corresponding to the output shaft 323.

[0051] like Figure 3-4 As shown, in this embodiment, a mounting flange 61 is connected to the front end of the gearbox 31, and a mounting base plate 62 is connected to the bottom of the intermediate cover 5 and the housing 41. This integrated motor can be installed via the mounting flange 61 or the mounting base plate 62, providing a flexible installation method. Furthermore, the hole positions can be set according to existing induction motor designs. Additionally, as... Figure 16In this embodiment, the rear cover 42 is provided with a plurality of cable inlet holes 423, which can be sealed as needed; the bottom of the rear cover 42 is also provided with a multi-functional cover plate 422, which can integrate interactive functions such as display and speed adjustment as needed, making it more intelligent.

[0052] like Figure 5 , Figure 9-13 As shown, the front side of the electrical control cavity 411 is provided with an air inlet 4117, and the second mounting port 4121 of the motor cavity 412 is formed as an air outlet; the rear side of the electrical control cavity 411 and the rear side of the motor cavity 412 form a communicating space 413. The motor cavity 412 is also provided with a fan blade 14, which is mounted on the rotating shaft 13 of the rotor 12 as it rotates; when the motor is working, the rotating shaft 13 rotates, and the fan blade 14 also rotates with the rotating shaft 13. Air enters the electrical control cavity 411 from the air inlet 4117, passes through the electrical controller 2, and then enters the motor cavity 412 from the communicating space 413. After passing through the gap between the stator 11 and the housing 41 and the gap between the rotor 12 and the stator 11, it is blown forward from the air outlet, i.e., the second mounting port 4121.

[0053] Preferably, such as Figure 14-15 As shown, a wind baffle ring 15 is also provided in the motor cavity 412. The wind baffle ring 15 is located on the rear side of the fan blade 14 and can be fixed together with the stator 11 in the motor cavity 412. The wind baffle ring 15 and the fan blade 14 are located on the front side of the stator 11, closer to the air outlet. The rear end of the wind baffle ring 15 is blocked on the outer ring to facilitate the formation of negative pressure, forcing the airflow to pass through the flow port 151 in the middle. The fan blade 14 is preferably a centrifugal fan blade 14, which blows the air from the middle to the radially outward. An arc-shaped guide portion 152 is formed on the outer ring at the front end of the wind baffle ring 15, thereby making the airflow flow forward.

[0054] This configuration allows the airflow to form a meandering trajectory within the housing 41, passing through the electronic controller 2 and the variable frequency motor body 1, thus effectively dissipating heat from the electronic controller 2 and the variable frequency motor body 1. Furthermore, the cold air first contacts the electronic controller 2 to ensure reliable heat dissipation of the electronic controller 2.

[0055] like Figure 9-13As shown, the air inlet 4117 includes a first air inlet 41171 and a second air inlet 41172. The first air inlet 41171 is disposed on the front surface of the housing 41 opposite to the front end of the electronic controller 2. The second air inlet 41172 is disposed on the housing 41 around the periphery corresponding to the air intake section of the electronic controller 2, excluding the front and rear sides. The second air inlets 41172 can be disposed on the front end and / or side surface of the housing 41. In this embodiment, the second air inlets 41172 are configured in two sets, respectively disposed on the left and right sides of the electronic controller 2. The set of two second air inlets 41172 on the left side is disposed on the left and left sides of the front end of the housing 4, respectively; the set of two second air inlets 41172 on the right side is disposed on the right and right sides of the front end of the housing 4, respectively. Thus, by simultaneously providing the first air inlet 41171 and multiple second air inlets 41172, the air intake area is increased. Preferably, the top of the left and right sides of the housing 41 is arc-shaped, that is, the two second air inlets 41172 located on the side are arc-shaped, so that they are closer to the electronic controller 2.

[0056] Furthermore, in this embodiment, an air guide plate 4118 is also provided on the periphery of the electronic controller 2 inside the housing 41. The air guide plate 4118 is arranged corresponding to the second air inlet 41172, for example, two sets are also arranged corresponding to two sets of second air inlets 41172. These air guide plates 4118 are used to block the airflow on the periphery of the electronic controller 2, thereby guiding the airflow entering from the air inlet 4117, especially the second air inlet 41172, towards the electronic controller 2.

[0057] like Figure 9-13 As shown, in this embodiment, the air guide plates 4118 are disposed on the left and right sides of the electronic control box 21. Each air guide plate 4118 includes a first air guide plate 41181 and a second air guide plate 41182. The first air guide plate 41181 is used to block the airflow at the rear of the second air inlet 41172, and the second air guide plate 41182 is used to block the airflow at the bottom of the second air inlet 41172, thereby guiding the airflow from the side to the portion of the electronic control plate 22 and the heat sink 23 that protrudes from the electronic control box 21. Preferably, the air guide plate 4118 further includes an extension section 41183 extending rearward from the first air guide plate 41181 and downward from the second air guide plate 41182, further guiding the airflow to the electronic controller 2; the bottom of the extension section 41183 is formed as the upper limit portion 4114.

[0058] In some applications, the installation space within the housing 41 for the electronic controller 2 is designed to be relatively large, causing some airflow to flow directly from the periphery of the electronic controller 2 to the rear. To address this, this embodiment provides an air guide plate 4118 around the electronic controller 2. The cold air entering from the air inlet 4117, especially the second air inlet 41172, is all blown towards the electronic controller 2 by the obstruction and guidance of the air guide plate 4118, thereby greatly improving the heat dissipation effect of the electronic controller 2.

[0059] Furthermore, the left and right sides of the control box 21 are formed with pressing edges 211, and the pressing edges 211 are provided with mounting holes 212. In the prior art, the controller 2 is generally installed through these mounting holes 212. In this embodiment, the pressing edges 211 are used, and a protrusion is provided at the bottom of the second air guide plate 41182 to form the aforementioned upper limit part 4114, thereby limiting the pressing edges 211 of the control box 21. In this embodiment, the lower part of the first air inlet 41171 is separated from the controller 2 by a certain distance through the aforementioned front limiting part 4116, thereby facilitating air circulation.

[0060] like Figure 1 , 2 As shown in Figure 8, the middle cover 5 of this embodiment has a horizontally arranged blocking edge 53 in the middle, which divides the space into an air inlet space 54 and an air outlet space 55. The air inlet space 54 is located at the upper part and corresponds to the electronic control cavity 411; the air outlet space 55 is located at the lower part and corresponds to the motor cavity 412. The blocking edge 53 prevents the relatively hot airflow blown out from the motor cavity 412 from directly entering the electronic control cavity 411, thereby ensuring reliable heat dissipation of the electronic controller 2.

[0061] Furthermore, the top of the air intake space 54 is close to the housing 41, and lateral air intake slots 56 are formed only on the left and right sides. Airflow enters the air intake space 54 from the lateral air intake slots 56 and then enters the electrical control cavity 411. The bottom of the air outlet space 55 is close to the housing 41, and lateral air outlet slots 57 are formed only on the left and right sides. Airflow blown out by the motor cavity 412 passes through the air outlet space 55 and is blown out from the lateral air outlet slots 57.

[0062] Furthermore, the bottom of the intermediate cover 5 is also provided with a forward air outlet slot 58 that allows airflow to blow forward toward the outer side of the bottom of the gearbox 31. The fan blade 14 can be configured as a combination of centrifugal and axial fan blades. In this way, in addition to passing through the electronic controller 2 and the variable frequency motor body 1, the airflow also passes through the gearbox 31 for heat dissipation.

[0063] The integrated motor in this embodiment, such as Figure 5As shown, during installation, the fan blade 14, the first bearing 81 on the right side, etc. are first assembled onto the rotating shaft 13 of the rotor 12. The front end of the rotating shaft 13 is passed through the intermediate cover 5, and the first bearing 81 is fixed on the other side of the intermediate cover 5 by the pressure cover 811. The input gear 321 is fitted into the front end of the rotating shaft 13 and locked by the locking member 33. The locking member 33 is preferably a hard lock nut, which can ensure reliable locking when the motor is rotating in both directions.

[0064] The stator 11 and the wind baffle ring 15 are fixedly installed inside the motor cavity 412 of the housing 41. The housing 41 and the stator 11 are then fitted onto the rotor 12, which is already installed on the intermediate cover 5. The intermediate cover 5 is then fixed to the housing 41 through the first connecting hole 71 on the intermediate cover 5 and the housing 41. The first connecting hole 71 on the housing 41 can be fitted with a nut insert as needed for easy installation. Next, the output shaft 323, the second bearing 82, and other gears are installed inside the gearbox 31. The intermediate cover 5 and the gearbox 31 are then connected through the second connecting hole 72 on the intermediate cover 5 and sealed with a sealing ring. The second connecting hole 72 on the intermediate cover 5 can be a threaded hole. Finally, the electronic controller 2 and the rear cover 42, as well as the mounting flange 61 and the mounting base plate 62, can be installed from the rear.

[0065] As can be seen from the above, the integrated motor provided in this embodiment drives and speeds the main body of the variable frequency motor through an electronic controller, and by setting an appropriate gear ratio of the reducer, the final output speed of the output shaft matches that of the induction motor used in the prior art. The height of the output shaft, the mounting hole position, etc. are all set accordingly, so that it can flexibly replace the existing induction motor and be flexibly applied to the required working scenarios. In addition, it can also achieve miniaturization and lightweight design, and has faster dynamic response speed, higher efficiency, and lower energy consumption.

[0066] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated motor, characterized in that, include: The variable frequency motor body (1) includes a stator (11) and a rotor (12). The electronic controller (2) is capable of driving and speed regulating the main body (1) of the variable frequency motor, so that the rotating shaft (13) of the rotor (12) operates at a first speed. The reducer (3) includes a gear set (32), the input end of the gear set (32) is connected to the rotating shaft (13), and the output end of the gear set (32) is connected to the output shaft (323). The rotational speed of the output shaft (323) is a second rotational speed, which is the first rotational speed divided by the gear ratio of the gear set (32). The second rotational speed is 1450±100r / min or 2850±200r / min.

2. The integrated motor according to claim 1, characterized in that, The variable frequency motor body (1) is a brushless motor body. The integrated motor also includes a housing (4), in which the variable frequency motor body (1) and the electronic controller (2) are disposed. The reducer (3) also includes a gearbox (31), in which the gear set (32) is disposed. The integrated motor also includes an intermediate cover (5), one side of which is sealed to the opening of the gearbox (31), and the other side of which is connected to the housing (4). The gearbox (31) and the intermediate cover (5) are made of metal, and the housing (4) is made of plastic.

3. The integrated motor according to claim 2, characterized in that, The housing (4) includes a housing (41) and a rear cover (42). The middle cover (5) is located on the front side of the housing (41), and the rear cover (42) is located on the rear side of the housing (41). An electrical control cavity (411) and a motor cavity (412) are formed inside the housing (41). The electrical control cavity (411) has a first mounting port (4111) for installing an electrical controller (2) on its rear side, and the motor cavity (412) has a second mounting port (4121) for installing a variable frequency motor body (1) on its front side.

4. The integrated motor according to claim 3, characterized in that, The electronic controller (2) includes an electronic control box (21), an electronic control board (22), and a heat sink (23). The heat sink (23) is installed on the electronic control board (22), and a part of the electronic control board (22) is installed in the opening of the electronic control box (21). The electronic control cavity (411) is provided with a left limiting part (4112), a right limiting part (4113), an upper limiting part (4114), a lower limiting part (4115), and a front limiting part (4116) for limiting the electronic control box (21). A pressure plate (421) is provided on the rear cover (42), and the pressure plate (421) is used to press the electronic control box (21) on the rear side.

5. The integrated motor according to claim 4, characterized in that, The intermediate cover (5) covers the second mounting port (4121). The intermediate cover (5) and the motor cavity (412) are respectively provided with first bearings (81) corresponding to the rotating shaft (13). The outer side of the first bearing (81) located in the motor cavity (412) is also provided with a metal bushing (4122). The front end of the rotating shaft (13) passes through the intermediate cover (5) and extends into the gearbox (31). The front end of the rotating shaft (13) is connected to the input gear (321) in the gear set (32). The output gear (322) in the gear set (32) is connected to the output shaft (323). The intermediate cover (5) and the gearbox (31) are respectively provided with second bearings (82) corresponding to the output shaft (323).

6. The integrated motor according to claim 5, characterized in that, The front side of the electrical control cavity (411) is provided with an air inlet (4117), and the second mounting port (4121) of the motor cavity (412) is formed as an air outlet; the rear side of the electrical control cavity (411) and the rear side of the motor cavity (412) form a communicating space (413); the motor cavity (412) is also provided with a fan blade (14), which is mounted on the rotating shaft (13) of the rotor (12) as it rotates; when the fan blade (14) rotates with the rotating shaft (13), air enters the electrical control cavity (411) from the air inlet (4117), passes through the electrical controller (2), and then exits from the connecting... The airflow enters the motor cavity (412) through the passage space (413), passes through the stator (11) and rotor (12), and is blown out from the air outlet. The motor cavity (412) is also provided with a wind baffle (15). The wind baffle (15) is located on the rear side of the fan blade (14). The wind baffle (15) and the fan blade (14) are located on the front side of the stator (11). The rear end of the wind baffle (15) is blocked on the outer ring, forcing the airflow to pass through the flow port (151) in the middle. The fan blade (14) is a centrifugal fan blade (14). The outer ring of the front end of the wind baffle (15) forms an arc-shaped guide part (152).

7. The integrated motor according to claim 6, characterized in that, The air inlet (4117) includes a first air inlet (41171) and a second air inlet (41172). The first air inlet (41171) is provided on the front surface of the housing (41) opposite to the front end of the electronic controller (2). The second air inlet (41172) is provided on the housing (41) corresponding to the periphery of the electronic controller (2). A guide plate (4118) is also provided inside the housing (41) on the periphery of the electronic controller (2). The guide plate (4118) is provided corresponding to the second air inlet (41172). The guide plate (4118) is used to block the air on the periphery of the electronic controller (2) and guide the air to the electronic controller (2).

8. The integrated motor according to claim 7, characterized in that, The air guide plate (4118) is disposed on the left and right sides of the electronic controller (2). Each air guide plate (4118) includes a first air guide plate (41181) and a second air guide plate (41182). The first air guide plate (41181) is used to block at the rear, and the second air guide plate (41182) is used to block at the bottom, so that air is directed to the part of the electronic control plate (22) and the heat sink (23) that protrudes from the electronic control box (21). The upper limit part (4114) is disposed at the bottom of the second air guide plate (41182), and the left and right sides of the electronic control box (21) are respectively formed with pressing edges (211).

9. The integrated motor according to claim 8, characterized in that, The middle cover (5) is provided with a blocking edge (53) in the middle, and the blocking edge (53) separates the air inlet space (54) corresponding to the electronic control cavity (411) and the air outlet space (55) corresponding to the motor cavity (412); the left and right sides of the air inlet space (54) are provided with lateral air inlet grooves (56), and the left and right sides of the air outlet space (55) are provided with lateral air outlet grooves (57); the middle cover (5) is also provided with a forward air outlet groove (58) that allows air to be blown to the outside of the gearbox (31).

10. The integrated motor according to claim 3, characterized in that, The gearbox (31) is connected to a mounting flange (61) on the front side, and the gearbox (31) and the housing (4) are connected to a mounting base plate (62); the output shaft (323) is configured at a set height.

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