Electromechanical integrated pump

Abstract

The utility model relates to a mechanical and electrical integrated pump, which belongs to the technical field of general equipment and comprises a motor and a pump. The pump comprises a pump body, a pump shaft and a front end cover. A shared front end cover is arranged between the pump 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 the pump shaft penetrates through the pump front end cover and is connected with the pump body, and the other end of the pump 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 pump is small, the pump and the motor are efficiently and stably combined together, and the product is more compact; the motor directly drives the pump to operate through the pump shaft penetrating through the interior, the overall operation efficiency of the pump is improved, the energy conversion efficiency between the motor and the pump 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 pump. Background Art

[0002] When the pump is working, it needs to be connected to the drive motor to ensure sufficient driving power. Conventional pumps and drive motors need to be connected horizontally to the pump. The connection structure includes the required couplings, coupling protection covers, bases and other components. Therefore, the installation space of the pump is increased to a certain extent, which wastes resources and makes assembly more difficult, especially in a small space. This connection method makes the operation complicated, uneconomical and environmentally unfriendly, and the energy conversion efficiency between the motor and the pump is low.

[0003] A Chinese patent with publication number CN209671221U reports on a "mechatronic clean water pump", in which the motor is fixedly connected to the clean water pump using a coupling. Although this simplifies the installation structure and ensures the stability of the connection, the rotor pump relies on a coupling to connect to the motor, and the coaxiality requirements of the two are high. The pump occupies a large space and has low operating efficiency, which makes the energy conversion efficiency between the motor and the pump not high enough. Utility Model Content

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

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

[0006] A common front end cover is provided between the pump 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 pump shaft passes through the front end cover of the pump and is connected to the pump body, and the other end of the pump shaft passes through the cavity of the motor and is fixedly connected to the rotor.

[0007] The utility model uses a pump and a motor to share a front end cover, and the pump shaft penetrates the cavity of the motor, so that the pump and the motor penetrate each other in the internal space, and the pump and the motor are directly integrated, which can have good coaxiality and simplify the structural device of the equipment, ensuring that the space occupied by the pump is small, so that the pump 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 pump shaft to rotate in the direction of the rotating magnetic field, ensuring that the pump 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 pump through the pump shaft penetrating the interior, thereby improving the overall operation efficiency of the pump, improving the energy conversion efficiency between the motor and the pump, and making the driving mechanism more scientific and reasonable.

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

[0011] Furthermore, the pump shaft is an extended shaft structure, one end of which passes through the front cover of the pump and continues to extend into the pump to be connected to the pump; 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 pump and causing dust accumulation.

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

[0017] The motor drives the pump to rotate through the pump shaft, and drives the fan to operate through the pump shaft at the same time, 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 pump has a flange with stoppers at both ends, one end of the flange is fixedly mounted on the pump, and the other end is fixedly mounted on the motor.

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

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

[0024] 1. The utility model uses a common front end cover for the pump and the motor, and the pump shaft penetrates the cavity of the motor, so that the pump and the motor penetrate each other in the internal space, and the pump and the motor are directly integrated, which can have good coaxiality and simplify the structure of the equipment, ensuring that the pump occupies a small space, so that the pump 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 bearingless structure, which directly drives the pump through the pump shaft running through the inside, thereby improving the overall operating efficiency of the pump, improving the energy conversion efficiency between the motor and the pump, 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 pump and causing dust accumulation.

[0027] 4. The motor drives the pump to operate and the fan to rotate at the same time through the extended shaft of the pump, so that the motor can output high power in a small base under overload or high load conditions without being restricted 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 on the front cover of the pump makes the connection between the motor and the pump tight and firm. This fixation can achieve secondary stability of the motor-pump integrated mechanism, and further ensure the stability of the connection between the motor and the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a mechatronic pump of the utility model.

[0031] In the figure: 1. pump body; 2. pump 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 pump includes a motor and a pump, wherein the motor includes a housing 4, a winding stator core 5, and a rotor 6; the pump includes a pump body 1, a pump shaft 2, and a front end cover 3, a common front end cover 3 is provided between the pump and the motor, the front end cover 3 is fixedly connected to the housing 4 of the motor, 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 pump shaft 2 passes through the pump front end cover 3 to connect with the pump body 1, and the other end of the pump shaft 2 passes through the cavity of the motor and is fixedly connected with the rotor 6.

[0034] The pump shaft 2 described here is an extended shaft structure, one end of which passes through the front cover 3 of the pump and continues to extend into the interior of the pump to be connected to the pump 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 end cover 3 of the pump 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 end cover 3 and the flange end face of the housing 4 are positioned by a stop. If a boss is machined on the front end 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 pump is as follows: the pump shaft 2 of the mechatronic pump 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 pump 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 pump 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 pump shaft 2 is an extended shaft structure, one end of which passes through the front cover 3 of the pump and continues to extend into the pump to be connected to the pump 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 and be fixedly connected to the fan 8 along the axis of the air outlet of the fan 8. The motor drives the rotation of the pump through the pump shaft, and at the same time drives the operation of the fan through the pump 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 guide the wind direction efficiently, 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 pump, causing dust accumulation.

[0043] Example 3

[0044] like Figure 1 As 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 pump of the utility model can be designed according to the application requirements. If it involves an application scenario with water, 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 pump, comprising a motor and a pump, characterized in that: The electric motor comprises a housing (4), a stator core (5) with a winding, and a rotor (6); A pump comprises a pump body (1), a pump shaft (2) and a front end cover (3); A common front end cover (3) is provided between the pump and the motor and is fixedly connected to the casing (4). The casing (4) contains a cavity formed by the winding stator core (5) and the rotor (6). One end of the pump shaft (2) passes through the front end cover (3) of the pump and is connected to the pump body (1), and the other end of the pump shaft (2) passes through the cavity of the motor and is fixedly connected to the rotor (6).

2. The mechatronic pump 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 pump according to claim 1, characterized in that: The pump shaft (2) is an extended shaft structure, one end of which passes through the front end cover (3) of the pump and continues to extend into the interior of the pump to be connected to the pump; 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 pump 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 pump according to claim 4, characterized in that: The shape of the fan (8) matches the shape of the wind cover (9).

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

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

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