High-efficiency heat dissipation water cooling structure of outer rotor permanent magnet motor

Abstract

The utility model relates to the technical field of permanent magnet motor, especially to an outer rotor permanent magnet motor water cooling structure of high -efficient heat dissipation, including mounting panel, install motor body in one side of mounting panel and install output shaft in one side of motor body and the water cooling structure of high -efficient heat dissipation of outer rotor permanent magnet motor of high -efficient heat dissipation of the outer rotor permanent magnet motor, the utility model discloses a horizontal ventilation slot of passing through the mounting panel is seted up in the inside of mounting panel, in the utility model, through the ventilation slot, the groove, the water cooling ring, the cooling pipe and the air -cooled component of setting, start cooling circulating pump when using device, and the bearing heat of connecting output shaft is introduced into the water cooling ring, and is taken away along with the cold water in the cooling pipe and water cooling ring, thereby realizes the efficient heat dissipation of bearing, and at the same time, the fan blade of fixed ring outside rotates along with output shaft, and the fan blade sweeps in the inside of motor body through the ventilation slot to the cold air that produces on the water cooling ring, and the heat of the inner stator in motor body is taken away by cold air, thereby realizes the efficient heat dissipation of motor body.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet motor technology, specifically to a water-cooled structure for an external rotor permanent magnet motor with high-efficiency heat dissipation. Background Technology

[0002] Permanent magnet motors use permanent magnets for excitation, which simplifies the motor structure, reduces processing and assembly costs, and eliminates the need for slip rings and brushes that are prone to problems, thus improving the reliability of motor operation. Furthermore, since no excitation current is required, there is no excitation loss, thereby improving the efficiency and power density of the motor. Permanent magnet motors can be divided into internal rotor and external rotor types. External rotor permanent magnet motors, with their high power density, high efficiency, compact design, and lightweight characteristics, have broad application prospects in many fields.

[0003] Existing external rotor permanent magnet motors are widely used. Due to their external rotor, their rotor has high heat dissipation efficiency, but their internal stator and internal bearings have low heat dissipation efficiency. Therefore, to address the above issues, a water-cooled structure for an external rotor permanent magnet motor with high heat dissipation is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a water-cooled structure for an external rotor permanent magnet motor with high heat dissipation, so as to solve the problem of low heat dissipation efficiency of internal components in existing devices mentioned in the background art.

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

[0006] A high-efficiency heat dissipation water-cooled structure for an external rotor permanent magnet motor includes a mounting plate, a motor body mounted on one side of the mounting plate, and an output shaft mounted on one side of the motor body and penetrating the mounting plate. The mounting plate has a horizontal ventilation slot penetrating the mounting plate. A slot communicating with the ventilation slot is formed on the side of the mounting plate away from the motor body. A water-cooling ring is engaged with the inside of the slot. Cooling pipes communicating with the water-cooling ring are symmetrically installed on one side of the water-cooling ring. An air-cooling assembly is installed on the outside of the output shaft, and a fixing assembly is installed on the outside of the water-cooling ring.

[0007] Preferably, there are multiple ventilation slots, which are distributed along a polar axis inside the mounting plate, and the water-cooling ring is fixed to the inside of the slot on the mounting plate by a fixing component.

[0008] Preferably, the air-cooled assembly includes a plurality of first threaded grooves formed on the outer side of the output shaft, a fixing ring is provided on the outer side of the first threaded grooves, a plurality of fan blades are fixedly connected to the outer side of the fixing ring, a plurality of mounting holes are formed inside the fixing ring, and mounting bolts are provided on the inner side of the mounting holes.

[0009] Preferably, the retaining ring is located outside the output shaft and fits tightly against the outside of the output shaft, and the mounting bolt is located inside the first threaded groove and is threadedly connected to the first threaded groove.

[0010] Preferably, the fixing component includes a fixing frame disposed on the outside of the water cooling ring, a fixing hole penetrating the fixing frame is opened at one end of the fixing frame, and a second threaded groove penetrating the fixing frame is opened at the other end of the fixing frame, and a fixing bolt located inside the fixing hole is threadedly connected to the inner side of the second threaded groove.

[0011] Preferably, there are multiple fixing components, the fixing components are disposed on the outside of a portion of the ventilation slots, and the fixing bolts are inserted into the inside of a portion of the ventilation slots.

[0012] Preferably, the mounting plate is fixedly connected to the upper and lower ends with a retaining frame, and the cooling pipe is located inside the retaining frame and is engaged with the retaining frame.

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

[0014] 1. In this utility model, by setting ventilation slots, card slots, water-cooling rings, cooling pipes and air-cooling components, when the device is in use, the cooling circulation pump is started, the heat of the bearing connected to the output shaft is introduced into the water-cooling ring, and is carried away with the cold water in the cooling pipes and water-cooling ring, thereby achieving efficient heat dissipation of the bearing. At the same time, the fan blades on the outside of the fixed ring rotate with the output shaft, and the fan blades blow the cold air generated on the water-cooling ring into the inside of the motor body through the ventilation slots. The cold air carries away the heat of the inner stator in the motor body, thereby achieving efficient heat dissipation of the motor body.

[0015] 2. In this utility model, by setting up the air-cooling component, fixing component and clip frame, when the motor body is working at low power, the mounting bolts and fixing bolts can be unscrewed, thereby removing the air-cooling component and water-cooling ring, avoiding increasing the power consumption of the motor body. This design makes the installation and disassembly of the fan blade and water-cooling ring more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the air-cooled component of this utility model;

[0019] Figure 4 This is a schematic diagram of the water-cooling ring installation structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0021] In the diagram: 1. Mounting plate; 2. Motor body; 3. Output shaft; 4. Ventilation slot; 5. Slot; 6. Water-cooled ring; 7. Cooling pipe; 8. Air-cooled assembly; 81. First threaded groove; 82. Fixing ring; 83. Fan blade; 84. Mounting hole; 85. Mounting bolt; 9. Fixing assembly; 91. Fixing frame; 92. Fixing hole; 93. Second threaded groove; 94. Fixing bolt; 10. Slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] 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.

[0024] 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.

[0025] Please see Figure 1-5 This utility model provides a technical solution:

[0026] A high-efficiency heat dissipation water-cooling structure for an external rotor permanent magnet motor includes a mounting plate 1, a motor body 2 mounted on one side of the mounting plate 1, and an output shaft 3 mounted on one side of the motor body 2 and penetrating the mounting plate 1. The mounting plate 1 has a horizontally penetrating ventilation slot 4 inside. A slot 5, communicating with the ventilation slot 4, is formed on the side of the mounting plate 1 away from the motor body 2. A water-cooling ring 6 is engaged with the inside of the slot 5. Cooling pipes 7, communicating with the water-cooling ring 6, are symmetrically installed on one side of the water-cooling ring 6. An air-cooling assembly 8 is mounted on the outside of the output shaft 3, and a fixing assembly 9 is mounted on the outside of the water-cooling ring 6. There are multiple ventilation slots 4, distributed along a polar axis inside the mounting plate 1. The water-cooling ring 6 is fixed to the inside of the slot 5 on the mounting plate 1 by the fixing assembly 9. The air-cooling assembly 8 includes multiple first threaded slots 81 formed on the outside of the output shaft 3. A fixing ring 82 is provided on the outside of the first threaded slots 81, and the fixing ring 82 is fixedly connected to the outside of the fixing ring 3. The device has multiple fan blades 83. Multiple mounting holes 84 are provided inside the fixing ring 82, and mounting bolts 85 are provided inside the mounting holes 84. The fixing ring 82 is located outside the output shaft 3 and fits tightly against it. The mounting bolts 85 are located inside the first threaded groove 81 and are threadedly connected to it. Through the ventilation groove 4, slot 5, water-cooled ring 6, cooling pipe 7, and air-cooling assembly 8, the cooling circulation pump is activated when the device is in use. The heat from the bearing connected to the output shaft 3 is transferred to the water-cooled ring 6 and carried away by the cold water in the cooling pipe 7 and water-cooled ring 6, thus achieving efficient heat dissipation of the bearing. Simultaneously, the fan blades 83 outside the fixing ring 82 rotate with the output shaft 3. The fan blades 83 blow the cold air generated on the water-cooled ring 6 into the inside of the motor body 2 through the ventilation groove 4. The cold air carries away the heat from the inner stator of the motor body 2, thus achieving efficient heat dissipation of the motor body 2.

[0027] The fixing component 9 includes a fixing frame 91 disposed on the outside of the water-cooling ring 6. A fixing hole 92 is opened inside one end of the fixing frame 91, and a second threaded groove 93 is opened on the other end of the fixing frame 91, which is threaded to the inside of the fixing hole 92. Multiple fixing components 9 are provided. The fixing components 9 are disposed on the outside of some ventilation slots 4, and the fixing bolts 94 are inserted into the inside of some ventilation slots 4. The upper and lower ends of the mounting plate 1 are fixedly connected to the clip frames 10. The cooling pipe 7 is located inside the clip frames 10 and is engaged with the clip frames 10. With the provided air-cooling component 8, fixing component 9 and clip frames 10, when the motor body 2 is working at low power, the mounting bolts 85 and fixing bolts 94 can be unscrewed, thereby removing the air-cooling component 8 and the water-cooling ring 6, avoiding increasing the power consumption of the motor body 2. This design makes the installation and removal of the fan blade 83 and the water-cooling ring 6 more convenient.

[0028] Workflow: Before use, power on the device and connect it to an external controller. First, install the various components of the device. Place the water-cooling ring 6 on the outside of the output shaft 3 and insert it into the slot 5, engaging with it. Place the fixing frame 91 on the outside of the mounting plate 1 and align it horizontally with part of the ventilation slot 4. Then, insert the fixing bolt 94 into the fixing hole 92 and the ventilation slot 4 and screw it into the second threaded groove 93 to fix the water-cooling ring 6. After that, connect the cooling pipe 7 to the external cooling circulation pump and place the cooling pipe 7 into the slot 10, engaging with it to prevent the cooling pipe 7 from bending and interfering with the air-cooling component 8 during use. Next, install the air-cooling component 8. Place the fixing ring 82 on the outside of the output shaft 3 and adjust the fixing ring 82 so that the mounting hole 84 on the fixing ring 82 is aligned with the first threaded groove 81. Then, insert the mounting bolt 85 into the mounting hole 84 and screw it into the first threaded groove 81 to complete the installation of the various components of the device. When needed... When the device is installed, the motor body 2 is started, and the outer rotor and output shaft 3 on the motor body 2 rotate. The inner stator in the motor body 2 and the bearing connected to the output shaft 3 on the mounting plate 1 begin to heat up. At this time, the cooling circulation pump can be started, and the heat of the bearing connected to the output shaft 3 is introduced into the water-cooling ring 6 and carried away by the cold water in the cooling pipe 7 and the water-cooling ring 6, thereby achieving efficient heat dissipation of the bearing. At the same time, the fan blade 83 on the outside of the fixing ring 82 rotates with the output shaft 3. The fan blade 83 blows the cold air generated on the water-cooling ring 6 into the inside of the motor body 2 through the ventilation slot 4. The cold air carries away the heat of the inner stator in the motor body 2, thereby achieving efficient heat dissipation of the motor body 2. When the motor body 2 is working at low power, the mounting bolt 85 and fixing bolt 94 can be unscrewed to remove the air-cooling component 8 and the water-cooling ring 6, so as to avoid increasing the power consumption of the motor body 2. The design of the air-cooling component 8 and the fixing component 9 makes the installation and removal of the fan blade 83 and the water-cooling ring 6 more convenient.

[0029] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-cooled structure for an external rotor permanent magnet motor with high heat dissipation, comprising a mounting plate (1), a motor body (2) mounted on one side of the mounting plate (1), and an output shaft (3) mounted on one side of the motor body (2) and penetrating the mounting plate (1), characterized in that: The mounting plate (1) has a ventilation slot (4) that runs horizontally through the mounting plate (1). The mounting plate (1) has a slot (5) that runs through the ventilation slot (4) on the side away from the motor body (2). A water-cooling ring (6) is engaged and connected inside the slot (5). Cooling pipes (7) that run through the water-cooling ring (6) are symmetrically installed on one side of the water-cooling ring (6). An air-cooling assembly (8) is installed on the outside of the output shaft (3). A fixing assembly (9) is installed on the outside of the water-cooling ring (6).

2. The water-cooled structure for a high-efficiency heat dissipation external rotor permanent magnet motor according to claim 1, characterized in that: The number of ventilation slots (4) is multiple, and the ventilation slots (4) are distributed in a polar axis inside the mounting plate (1). The water cooling ring (6) is fixed to the inside of the slot (5) on the mounting plate (1) by the fixing component (9).

3. The water-cooled structure for a high-efficiency heat dissipation external rotor permanent magnet motor according to claim 2, characterized in that: The air-cooled assembly (8) includes a plurality of first threaded grooves (81) opened on the outside of the output shaft (3). A retaining ring (82) is provided on the outside of the first threaded groove (81). A plurality of fan blades (83) are fixedly connected to the outside of the retaining ring (82). A plurality of mounting holes (84) penetrating the retaining ring (82) are opened inside the retaining ring (82). Mounting bolts (85) are provided on the inside of the mounting holes (84).

4. The water-cooled structure for a high-efficiency heat dissipation external rotor permanent magnet motor according to claim 3, characterized in that: The fixing ring (82) is located outside the output shaft (3) and fits tightly against the outside of the output shaft (3). The mounting bolt (85) is located inside the first thread groove (81) and is threadedly connected to the first thread groove (81).

5. The water-cooled structure for a high-efficiency heat dissipation external rotor permanent magnet motor according to claim 4, characterized in that: The fixing component (9) includes a fixing frame (91) disposed on the outside of the water cooling ring (6). A fixing hole (92) penetrating the fixing frame (91) is provided inside one end of the fixing frame (91), and a second threaded groove (93) penetrating the fixing frame (91) is provided at the other end of the fixing frame (91). A fixing bolt (94) located inside the fixing hole (92) is threadedly connected to the inside of the second threaded groove (93).

6. The water-cooled structure for a high-efficiency heat dissipation external rotor permanent magnet motor according to claim 5, characterized in that: The fixing component (9) is provided in multiple ways. The fixing component (9) is located on the outside of a portion of the ventilation slot (4), and the fixing bolt (94) is inserted into the inside of a portion of the ventilation slot (4).

7. The water-cooled structure for a high-efficiency heat dissipation external rotor permanent magnet motor according to claim 1, characterized in that: The mounting plate (1) is fixedly connected to the upper and lower ends of the mounting frame (10), and the cooling pipe (7) is located inside the mounting frame (10) and is engaged with the mounting frame (10).

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