Integrated brushless motor

Abstract

The utility model relates to the technical field of motors, in particular to an integrated brushless motor, which comprises a motor body, an electric controller and a transmission device, a motor cavity and an electric control cavity which are arranged up and down are arranged in a motor casing of the motor body, the electric controller is arranged in the electric control cavity, and the transmission device is arranged in the electric control cavity. And the transmission device is detachably connected with a motor shell of the motor body. The motor cavity and the electric control cavity which are arranged up and down are formed in the motor shell and are respectively used for accommodating the rotor, the stator and the electric controller, the transmission device is integrated at the front end of the motor body, the structure is compact, the layout is reasonable, the size and volume of the whole motor are reduced, and the motor is applied to the electric tool industry. And the convenience of space, installation and transportation is considered.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, especially relates to an integrated brushless motor. BACKGROUND

[0002] The conventional asynchronous motor body volume is generally larger, and the driving and control device is mostly set on the side of the motor in a "backpack" mode, which needs to additionally increase the installation device during installation and also affects the overall appearance of the motor, in the woodworking tool, garden tool and stone tool industry, the motor and transmission and electric control device need to be designed into an integrated whole to meet the requirement of small and simple overall appearance under the same technical requirement. SUMMARY

[0003] The utility model solves the problem in prior art, and provides an integrated brushless motor, a motor cavity and an electric control cavity arranged in the upper and lower directions are formed in the motor shell of the motor body, and are used for accommodating a rotor stator and an electric controller respectively, the transmission device is integrated at the front end of the motor body, the structure is compact, the layout is reasonable, the size and volume of the whole motor are reduced, and the motor is applied to the electric tool industry, and the space, installation and transportation convenience are considered.

[0004] In order to solve the above technical problems, the utility model is realized through the following technical scheme: an integrated brushless motor, comprising a motor body, an electric controller and a transmission device, a motor cavity and an electric control cavity arranged in the upper and lower directions are arranged in the motor shell of the motor body, the electric controller is installed in the electric control cavity, and the transmission device is integrated at the front end of the motor body.

[0005] As a preferred scheme, the motor body and the transmission device can be detachably installed on the base.

[0006] As a preferred scheme, the rear end of the motor shell is detachably installed with a rear cover, and the front end of the motor shell is connected with the transmission device through an intermediate cover.

[0007] As a preferred scheme, an air inlet is formed on the electric control cavity, a first air duct is formed in the electric control cavity, a second air duct and a third air duct are formed in the motor cavity, an air outlet I and an air outlet II are arranged on the intermediate cover, the air outlet I faces the transmission device, and the air outlet II faces the outside to discharge heat.

[0008] As a preferred scheme, a rotor and a stator are installed in the motor cavity, one end of the rotor is installed on the intermediate cover, and a fan blade is installed on the rotor.

[0009] As a preferred scheme, the fan blade is a combined fan blade of axial flow and centrifugal flow.

[0010] As a preferred solution, the transmission device comprises a gear box in which a gear set is installed, and an output shaft connected with the gear set, the gear box is connected with the base through a support and a flange plate is formed at the front end of the gear box.

[0011] Compared with the prior art, the motor shell of the utility model forms the motor cavity and the electric control cavity arranged in upper and lower, is used for containing rotor stator and electric controller respectively, the transmission device is integrated in the front end of the motor body, the structure is compact, the layout is reasonable, the size and the volume of the whole motor are reduced, is applied in electric tool industry, the space and the installation and the convenience of transportation are considered; The front side of the motor body is provided with an air inlet and an air duct is arranged in the inside, so that the internal heat is discharged through the air outlet on the middle cover; The rotor is provided with a fan blade, the rotor drives the fan blade to run at high speed when rotating, a negative pressure is formed around, the external air enters into the inside of the motor body through the air inlet in front of the electric control cavity, and then is discharged through the air outlet on the middle cover, air circulation is formed, the heat on the electric controller, the rotor and the stator is discharged to the outside in this process, cooling effect is achieved, and the working life is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0013] Fig. 2 It is the internal structure schematic diagram of the utility model.

[0014] In the drawing:

[0015] 1, installation base, 2, motor body, 2-1, rotor, 2-1-1, fan blade, 2-2, stator, 2-3, motor cavity, 2-4, rear cover, 2-5, electric control cavity, 2-6, heat dissipation port, 3, electric controller, 4, transmission device, 4-1, middle cover, 4-2, gear set, 4-3, gear box, 4-4, flange plate, 4-5, output shaft, F-1, air inlet, F-2, air duct I, F-3, air duct II, F-4, air duct III, F-5, air outlet I, F-6, air outlet II. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The description of at least one exemplary embodiment is only illustrative in nature, and is by no means as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0017] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0018] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale of the various parts shown in the drawings. Techniques, methods, and apparatus known to those of ordinary skill are not discussed in detail because they would be considered as too general. In all examples shown and discussed herein, any specific value is to be interpreted as merely an example and not a limitation. Thus, other examples of the example embodiments can have different values. It is noted that like numbers and letters on the figures identify like parts throughout the several views, and thus, once an item is defined in one figure, it is not necessary to discuss it further in connection with other figures where it is understood to be the same.

[0019] In the description of the present application, it is to be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0020] 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.

[0021] 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.

[0022] like Figs. 1-2 As shown, an integrated brushless motor includes a motor body 2, an electric controller 3, and a transmission device 4. The motor body 2 has a motor cavity 2-3 and an electric control cavity 2-5 arranged vertically inside the motor housing. The electric controller 3 is installed in the electric control cavity 2-5, and the transmission device 4 is integrated at the front end of the motor body 2. In this embodiment, the integrated brushless motor integrates the electric controller 3 and the transmission device 4 into one unit. Compared with traditional asynchronous motors under the same technical requirements, it is extremely compact in size, has a compact structure, and a reasonable layout, reducing the overall size and volume of the motor. When applied in the power tool industry, it takes into account the convenience of space, installation, and transportation.

[0023] In one embodiment, both the motor body 2 and the transmission device 4 are detachably mounted on the base 1 by bolts, making installation and disassembly convenient. The base 1 can also be fixed to an external tool by screws.

[0024] In one embodiment, the transmission device 4 includes a gearbox 4-3 and an output shaft 4-5. A gear set 4-2 is installed inside the gearbox 4-3. The gear set 4-2 is connected to the output shaft 4-5 and the rotating shaft of the motor body 2 respectively. The gearbox 4-3 is connected to the base 1 through a support and screws, and a flange 4-4 is formed at the front end of the gearbox 4-3. The output shaft 4-5 is connected to the transmission shaft on various tools through a flat key to transmit power. The flange 4-4 can be connected to various power tools through screws, etc., thus becoming a power device for various tools.

[0025] In one embodiment, the rear end of the motor shell is detachably mounted with the rear cover 2-4 by bolts, which can realize the isolation of the components in the motor body 1 from the outside, in addition, the external power supply wire realizes the power input through the through hole on the rear cover 2-4, and the front end of the motor shell is connected with the transmission device 4 through the intermediate cover 4-1 and the bolts.

[0026] In one embodiment, the front end of the electric control cavity 2-5 is provided with an air inlet F-1, the electric control cavity 2-5 is formed with an air duct I F-2, the air duct I F-2 is arranged along the upper end and the rear end of the electric control cavity 2-5, the motor cavity 2-3 is formed with an air duct II F-3 and an air duct III F-4, the air duct II F-3 and the air duct III F-4 have multiple and extend from the end close to the rear cover 2-4 (here, the air duct II F-3) of the motor cavity 2-3 to the front end (here, the air duct III F-4) of the motor cavity 2-3, then the external cold air enters the electric control cavity 2-5 through the air inlet F-1, flows to the motor cavity 2-3 through the air duct I F-2, and reaches the intermediate cover 4-1 from the rear to the front through the air duct II F-3 and the air duct III F-4 in the motor cavity 2-3, the intermediate cover 4-1 is provided with an air outlet I F-5 and an air outlet II F-6, the air outlet I F-5 faces the transmission device 4, then the external cold air can cool the transmission device 4, and the air outlet II F-6 faces the outside, which can discharge the heat in the electric control cavity 2-5 and the motor cavity 2-3.

[0027] In addition, the air inlet F-1 at the electric control cavity 2-5 can be provided with a structure of a dark air window, a hat brim type, a steel wire mesh type and the like, which is used for dustproof and waterproof, so that it can be used in special environments, in addition, an auxiliary air inlet 2-6 is also provided at the top of the electric control cavity 2-5, which is used for supplementing the air when the air inlet area of the front air inlet F-1 is insufficient, and the auxiliary air inlet 2-6 can also be provided with a structure of a dark air window, a hat brim type, a steel wire mesh type and the like according to needs, which is used for dustproof and waterproof.

[0028] In one embodiment, the rotor 2-1 and the stator 2-2 are installed in the motor cavity 2-3, one end of the rotor 2-1 is installed on the intermediate cover 4-1, and the rotor 2-1 is installed with a fan blade 2-1-1, when the integrated motor works, the rotor 2-1 rotates at high speed to drive the transmission device 4 to rotate, and provides power to the peripheral tool through the output shaft 4-5, at the same time, the fan blade 2-1-1 also rotates at high speed, and the surrounding negative pressure is formed, which promotes the external air to enter the inside of the motor body 1 through the air inlet F-1 at the front of the electric control cavity 2-5, and then is discharged through the air outlet II F-6 on the intermediate cover 4-1, to form air circulation and flow, in this process, the heat on the electric controller 3, the rotor 2-1 and the stator 2-2 is discharged to the outside, which plays a cooling role and improves the working life.

[0029] In one embodiment, the fan blade 2-1-1 is a combined axial and centrifugal fan blade, so as to discharge the heat in the motor body 1 to the outside, and meanwhile, a part of the air is discharged to the front through the air outlet window on the middle cover 4-1, and is blown to the gear box 4-3, so as to quickly discharge and cool the heat transferred from the gear set 4-2 during operation.

[0030] In addition, the electric controller 3 can be selected in different models according to the required functions of the customers, for example, the electric controller can be provided with intelligent functions, such as overcurrent protection function, power-on protection function (the switch is opened, and then the power is started to harm the user, and the switch needs to be pressed again to use), timing function, reverse twist function (the tool is in a closed state at a specific angle position), Bluetooth DFC function and the like, and is suitable for various tool requirements.

[0031] The above is the preferred embodiment of the present application, and the person skilled in the art of the present application can also change and modify the above embodiment, therefore, the present application is not limited to the above specific embodiments, and any obvious improvement, replacement or modification made by the person skilled in the art on the basis of the present application belongs to the protection scope of the present application.

Claims

1. An integrated brushless electric machine comprising a machine body (2), an electric controller (3) and a transmission (4), characterized in that: The motor shell of the motor body (2) is provided with motor cavities (2-3) and electric control cavities (2-5) arranged in up and down directions, the electric controller (3) is installed in the electric control cavities (2-5), and the transmission device (4) is integrated in the front end of the motor body (2).

2. The integrated brushless motor of claim 1, wherein: The motor body (2) and the transmission device (4) can be detachably installed on the base (1).

3. The integrated brushless motor of claim 1, wherein: The rear end of the motor shell is detachably provided with a rear cover (2-4), and the front end of the motor shell is connected with the transmission device (4) through an intermediate cover (4-1).

4. The integrated brushless motor of claim 3, wherein: An air inlet (F-1) is formed on the electric control cavities (2-5), and air duct I (F-2) is formed in the electric control cavities (2-5), air duct II (F-3) and air duct III (F-4) are formed in the motor cavities (2-3), the intermediate cover (4-1) is provided with air outlet I (F-5) and air outlet II (F-6), the air outlet I (F-5) faces the transmission device (4), and the air outlet II (F-6) faces the outside to discharge heat.

5. The integrated brushless motor of claim 1, wherein: The motor cavities (2-3) are provided with rotors (2-1) and stators (2-2), one end of the rotor (2-1) is installed on the intermediate cover (4-1), and the rotor (2-1) is provided with a fan blade (2-1-1).

6. The integrated brushless motor of claim 5, wherein: The fan blade (2-1-1) is a combined fan blade of axial flow and centrifugal flow.

7. The integrated brushless motor of claim 1, wherein: The transmission device (4) comprises a gear box (4-3) and an output shaft (4-5), the gear box (4-3) is provided with a gear set (4-2), the output shaft (4-5) is connected with the gear set (4-2), the gear box (4-3) is connected with the base (1) through a support, and the front end of the gear box (4-3) is provided with a flange (4-4).

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