Mechanical and electrical integrated fan

Abstract

The utility model relates to a mechanical and electrical integrated fan, which belongs to the technical field of universal equipment and comprises a motor and a fan, and the motor comprises a casing, a stator core with a winding and a rotor. The fan comprises a fan body, a fan shaft and a front end cover. A shared front end cover is arranged between the fan and the motor and fixedly connected with the machine shell, a cavity formed by a winding stator iron core and a rotor is arranged in the machine shell, one end of a fan shaft penetrates through the fan front end cover and is connected with a fan body, and the other end of the fan shaft penetrates through the cavity of the motor and is fixedly connected with the rotor. According to the utility model, the structural device of the equipment is simplified, the occupied space of the fan is small, the fan and the motor are efficiently and stably combined together, and the product is more compact; the motor directly drives the fan to operate through the fan shaft penetrating through the interior, the overall operation efficiency of the fan is improved, the energy conversion efficiency between the motor and the fan is improved, and the driving mechanism is more scientific and reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of general equipment, in particular to a mechatronic fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. There are many types of fans, such as ventilators, blowers, wind turbines, etc. When the fan is working, it needs to be connected to the drive motor to ensure sufficient driving power. Conventional fans and drive motors need to be connected horizontally with the fan. The connection structure includes the required couplings, coupling protection covers, bases and other components. Therefore, the installation space of the fan is increased to a certain extent, which wastes resources and is difficult to assemble. Especially in a small space, this connection method makes the operation complicated and uneconomical and environmentally unfriendly.

[0003] The Chinese patent with publication number CN202798278U reports "an explosion-proof motor for an axial flow fan", which directly integrates the bearing seat with the housing, solving the problem of the existing explosion-proof axial flow fan having a bearing seat in the motor, but failing to efficiently combine the motor and the fan together. The fan occupies a large space, and at the same time, the driving force obtained by the fan is small, and the energy conversion efficiency between electrical energy and mechanical energy is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the installation space of the fan in the prior art is large, the assembly of the fan integrated with the motor is difficult, and the energy conversion efficiency between the motor and the fan is low.

[0005] The utility model solves the above technical problems through the following technical means: a mechatronic fan, comprising a motor and a fan, wherein the motor comprises a housing, a stator core with a winding, and a rotor; the fan comprises a fan body, a fan shaft, and a front cover;

[0006] A common front end cover is provided between the fan and the motor, which is fixedly connected to the casing. The casing contains a cavity formed by the winding stator core and the rotor. One end of the fan shaft passes through the fan front end cover and is connected to the fan body, and the other end of the fan shaft passes through the cavity of the motor and is fixedly connected to the rotor.

[0007] The utility model uses a common front end cover for the fan and the motor, and the fan shaft penetrates the cavity of the motor, so that the fan and the motor penetrate each other in the internal space, and the fan and the motor are directly integrated into one, which can have good coaxiality and simplifies the structural device of the equipment, ensuring that the fan occupies a small space, so that the fan and the motor are efficiently and stably combined together, and the product is more compact.

[0008] When the motor is energized, the winding stator core inside the casing will generate a rotating magnetic field. The rotor in the rotating magnetic field will cut the magnetic lines of force, and an induced current will be generated inside the rotor. The magnetic field generated by the induced current interacts with the rotating magnetic field to generate electromagnetic thrust, pushing the fan shaft to rotate in the direction of the rotating magnetic field, ensuring that the fan obtains sufficient driving force.

[0009] The motor of the utility model is configured as a hollow shaft or a bearingless structure, and directly drives the operation of the fan through the fan shaft running through the inside, thereby improving the overall operation efficiency of the fan, improving the energy conversion efficiency between the motor and the fan, and making the driving mechanism more scientific and reasonable.

[0010] Furthermore, the casing structure of the motor is closed or open.

[0011] Furthermore, the fan shaft is an extended shaft structure, one end of which passes through the front cover of the fan and continues to extend into the inside of the fan to be connected to the fan; the other end passes through the inner cavity of the motor, is connected to the rotor inside the motor, and continues to extend out of the inner cavity of the motor.

[0012] Furthermore, the rear end of the motor cavity also includes a fan and a wind shield, and the fan is located in the wind shield.

[0013] Furthermore, the shape of the fan is adapted to the shape of the wind cover.

[0014] Furthermore, one end of the fan is in a conical trumpet shape, and the wind cover is a cylindrical structure.

[0015] The structural features of the above-mentioned wind hood and fan can efficiently guide the wind direction, effectively dissipate the heat generated by the motor, and prevent the motor from being damaged due to overheating after long-term operation; the setting of the wind hood prevents dust in the air from entering the interior of the mechatronic fan and causing dust accumulation.

[0016] Furthermore, along the axis of the fan outlet, the fan shaft is fixedly connected to the fan.

[0017] The motor drives the rotation of the fan through the fan shaft, and at the same time drives the operation of the fan through the fan shaft, so that the motor can output high power in a small base under overload or high load conditions, and is not limited by the physical or chemical properties of the medium.

[0018] Furthermore, the motor also includes a rear end cover, which is parallel to the front end cover, has one end fixedly connected to the casing, and the other end fixedly connected to the wind cover.

[0019] The rear end cover can isolate the motor and the fan, reducing the friction loss between the motor and the fan.

[0020] Furthermore, the stator iron core with windings and the rotor are provided with stator punching sheets and rotor punching sheets respectively.

[0021] Furthermore, the front end cover of the fan has a flange with stoppers at both ends, one end of the flange is fixedly mounted on the fan, and the other end is fixedly mounted on the motor.

[0022] The front cover flange of the fan makes the connection between the motor and the fan tight and firm. This fixation can achieve secondary stability of the motor-fan integrated mechanism, and further ensure the stability of the connection between the motor and the fan.

[0023] The beneficial effects of the utility model are:

[0024] 1. The utility model uses a common front end cover for the fan and the motor, and the fan shaft passes through the cavity of the motor, so that the fan and the motor penetrate each other in the internal space, and the fan and the motor are directly integrated, which can have good coaxiality. At the same time, the structural device of the equipment is simplified, ensuring that the fan occupies a small space, so that the fan and the motor are efficiently and stably combined, and the product is more compact.

[0025] 2. The motor is set to a hollow shaft or a bearingless structure, which directly drives the operation of the fan through the fan shaft running through the inside, thereby improving the overall operating efficiency of the fan, improving the energy conversion efficiency between the motor and the fan, and making the driving mechanism more scientific and reasonable.

[0026] 3. Design a wind hood that matches the shape of the fan. Preferably, the wind hood is a cylindrical structure and the fan is a conical trumpet-shaped structure, which can efficiently guide the wind direction and effectively dissipate the heat generated by the motor to prevent the motor from being damaged due to overheating after long-term operation. The setting of the wind hood also prevents dust in the air from entering the interior of the mechatronic fan and causing dust accumulation.

[0027] 4. The motor drives the fan to rotate through the extended shaft of the fan, which can meet the motor's high power output in a small base under overload or high load conditions and is not limited by the physical or chemical properties of the medium.

[0028] 5. Setting the rear end cover can isolate the motor and the fan and reduce the friction loss between the motor and the fan.

[0029] 6. The flange stop of the front cover of the fan makes the connection between the motor and the fan tight and firm. This fixation can achieve secondary stability of the motor-fan integrated mechanism, and further ensure the stability of the connection between the motor and the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The utility model is a structural schematic diagram of a mechatronic fan.

[0031] In the figure: 1. fan body; 2. fan shaft; 3. front cover; 4. casing; 5. stator core with winding; 6. rotor; 7. rear cover; 8. fan; 9. wind hood. DETAILED DESCRIPTION

[0032] Example 1

[0033] like Figure 1 As shown, a mechatronic fan includes a motor and a fan, wherein the motor includes a housing 4, a winding stator core 5, and a rotor 6; the fan includes a fan body 1, a fan shaft 2, and a front end cover 3, a common front end cover 3 is provided between the fan and the motor, the front end cover 3 is fixedly connected to the motor housing 4, and a cavity formed by the winding stator core 5 and the rotor 6 is provided in the housing 4. The motor is set as a hollow shaft or a bearingless structure, one end of the fan shaft 2 passes through the fan front end cover 3 to be connected to the fan body 1, and the other end of the fan shaft 2 passes through the motor cavity and is fixedly connected to the rotor 6.

[0034] The fan shaft 2 described here is an extended shaft structure, one end of which passes through the fan front cover 3 and continues to extend into the fan to be connected to the fan body 1; the other end passes through the inner cavity of the motor and is connected to the rotor 6 inside the motor, and can further extend out of the inner cavity of the motor.

[0035] The motor housing 4 is made of cast iron material, has a heat dissipation rib shape, and a closed structure. The stator core 5 and the rotor 6 are provided with stator punchings and rotor punchings respectively. The power generation principle of the motor can refer to the existing motors.

[0036] The casing material, shape and structure of the motor described here are not limited. The casing material can be cast iron, aluminum or steel plate, etc. The casing shape can be a heat dissipation rib shape or a square shape or other structure. The casing structure can be closed or open, as long as it meets the motor design requirements.

[0037] The front cover 3 of the fan has a flange, and the bottom end of the motor housing 4 is also provided with a flange. The flange end face of the front cover 3 and the flange end face of the housing 4 are positioned by a stop. If a boss is machined on the front cover 3 and a pit is machined on the flange end face of the housing 4, the boss and the pit are called a stop. The stop is convenient for meeting the coaxiality requirements, and can also improve the end face sealing, and can also achieve axial limit.

[0038] The working principle of the mechatronic fan is as follows: the fan shaft 2 of the mechatronic fan passes through the cavity of the motor. When the motor is energized, the winding stator core 5 in the casing will generate a rotating magnetic field. The rotor 6 in the rotating magnetic field will cut the magnetic lines of force, and an induced current will be generated inside the rotor 6. The magnetic field generated by the induced current interacts with the rotating magnetic field to generate electromagnetic thrust, which pushes the fan shaft 2 to rotate in the direction of rotation of the rotating magnetic field, completing the conversion of electrical energy and mechanical energy, and ensuring that the fan obtains sufficient driving force.

[0039] Example 2

[0040] like Figure 1 As shown, on the basis of embodiment 1, this embodiment further includes a fan 8 and a wind shield 9, the motor is a small-base high-power motor, the ventilation method is a blowing type or an exhaust type, and the motor achieves heat dissipation through the fan 8. The motor housing 4 is replaced with an aluminum material, a square shape, and an open structure, and the rear end of the motor cavity further includes a fan 8 and a wind shield 9, and the fan 8 is located in the wind shield 9. It is further explained that the small-base high-power motor described has a small volume, a high output power, and a large output torque.

[0041] The fan shaft 2 is an extended shaft structure, one end of which passes through the fan front cover 3 and continues to extend into the fan to connect with the fan body 1; the other end passes through the inner cavity of the motor to connect with the rotor 6 inside the motor, and can further extend out of the inner cavity of the motor to be fixedly connected with the fan 8 along the axis of the air outlet of the fan 8. The motor drives the rotation of the fan through the fan shaft, and at the same time drives the operation of the fan through the fan shaft, so that the motor can output high power with a small base under overload or high load conditions, and is not limited by the physical or chemical properties of the medium.

[0042] According to the shape of the fan 8, a wind shield 9 matching its shape is designed. Preferably, the wind shield 9 is a cylindrical structure, and the fan 8 is a conical trumpet shape. Here, the shapes of the fan 8 and the wind shield 9 are not limited to the preferred design, and can also be other shapes and structures. The fan can extract or blow air, can efficiently guide the wind direction, effectively dissipate the heat generated by the motor, and prevent the motor from being damaged due to excessive temperature after long-term operation; the setting of the wind shield 9 also prevents dust in the air from entering the interior of the mechatronic fan, causing dust accumulation.

[0043] Example 3

[0044] like Figure 1As shown, on the basis of Example 2, the ventilation mode of the motor is changed to an exhaust type, the casing 4 of the motor is replaced with a steel plate material, a square shape, and an open structure, and the rear end of the motor cavity also includes a rear end cover 7, which is made of non-magnetic aluminum alloy. The rear end cover 7 is parallel to the front end cover 3, one end is fixedly connected to the casing 4, and the other end is fixedly connected to the wind cover 9. The rear end cover can isolate the motor and the fan to reduce the friction loss between the motor and the fan; at the same time, a number of ventilation holes are opened on the rear end cover 7, so that the wind force of the electric fan passes through the ventilation holes, and good ventilation is achieved on the basis of reducing the friction loss between the equipment, thereby achieving the effect of heat dissipation and cooling of the motor.

[0045] It is further explained that the ventilation hole structure on the rear end cover 7 of the mechatronic fan of the utility model can be designed according to the application requirements. If it involves water application scenarios, the rear end cover 7 adopts a sealing plate or a windshield plate structure, and ventilation holes may not be provided to improve the protection level of the motor. The motor can be a hollow shaft or a bearingless or front flange-free end cover structure, and the motor ventilation method is a blowing type or an exhaust type. The structure of the casing 4 is closed or open, and the shape of the casing 4 is not limited, not limited to a heat dissipation rib type or a square type. The material of the casing 4 can be cast iron, aluminum or steel plate, etc., all of which meet the design requirements of the motor.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A mechatronic fan, comprising a motor and a fan, characterized in that: The electric motor comprises a housing (4), a stator core (5) with a winding, and a rotor (6); A fan comprises a fan body (1), a fan shaft (2) and a front cover (3); A common front end cover (3) is provided between the fan and the motor and is fixedly connected to the housing (4). The housing (4) contains a cavity formed by the winding stator core (5) and the rotor (6). One end of the fan shaft (2) passes through the fan front end cover (3) and is connected to the fan body (1), and the other end of the fan shaft (2) passes through the cavity of the motor and is fixedly connected to the rotor (6).

2. The mechatronic fan according to claim 1, characterized in that: The casing (4) structure of the motor is a closed type or an open type.

3. The mechatronic fan according to claim 1, characterized in that: The fan shaft (2) is an extended shaft structure, one end of which passes through the front end cover (3) of the fan and continues to extend into the interior of the fan to be connected to the fan; the other end passes through the inner cavity of the motor, is connected to the rotor (6) inside the motor, and continues to extend out of the inner cavity of the motor.

4. The mechatronic fan according to claim 1, characterized in that: The rear end of the motor cavity further comprises a fan (8) and a wind shield (9), and the fan (8) is located inside the wind shield (9).

5. The mechatronic fan according to claim 4, characterized in that: The shape of the fan (8) matches the shape of the wind cover (9).

6. The mechatronic fan according to claim 5, characterized in that: One end of the fan (8) is in the shape of a conical trumpet, and the wind cover (9) is in the shape of a cylinder.

7. The mechatronic fan according to claim 4, characterized in that: The fan shaft (2) is fixedly connected to the fan (8) along the axis of the air outlet of the fan (8).

8. The mechatronic fan according to claim 4, characterized in that: The motor further comprises a rear end cover (7), wherein the rear end cover (7) is parallel to the front end cover (3), one end of the rear end cover (7) is fixedly connected to the housing (4), and the other end of the rear end cover (7) is fixedly connected to the wind cover (9).

9. The mechatronic fan according to claim 1, characterized in that: The winding stator iron core (5) and the rotor (6) are respectively provided with stator punching sheets and rotor punching sheets.

10. The mechatronic fan according to claim 1, characterized in that: The front end cover (3) of the fan has a flange and stoppers at both ends; one end of the flange is fixedly mounted on the fan, and the other end is fixedly mounted on the motor.

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