Elevator outer rotor traction machine motor with ventilation structure

Abstract

The utility model belongs to the technical field of motor heat dissipation, and particularly relates to an elevator outer rotor traction machine motor with a ventilation structure. The device comprises a horizontally arranged rotating shaft, a rotor fixed on the outer side of the rotating shaft, a stator installed on the outer side of the rotor, a shell installed on the outer side of the stator, a base installed at the bottom of the shell, an extension block fixed on the left end of the stator, a heat conduction sleeve sleeved on the extension block, and a cooling assembly arranged on the heat conduction sleeve and used for reducing the temperature of the stator. The left end of the rotating shaft is provided with a heat dissipation assembly for accelerating air flow in the shell. According to the utility model, heat on the stator is transmitted to the heat conduction sleeve after passing through the extension block, and the temperature on the heat conduction sleeve is reduced under the action of the cooling assembly, so that the temperature of the stator is reduced, air flow in the shell is accelerated under the action of the heat dissipation assembly, and the cooling effect of the cooling assembly can be enhanced while hot air in the shell is discharged; the two parts cooperate with each other to accelerate the temperature loss speed and protect the parts in the housing.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor heat dissipation, and in particular relates to an elevator outer rotor traction machine motor with a ventilation structure. Background Art

[0002] Elevators mostly use traction machines as the main drive unit, which are composed of an electric motor, brake, coupling, reduction gearbox, traction wheel, frame and guide wheel, and an auxiliary handwheel. Its function is to transport and transmit power to make the elevator run. The installation space of the traction machine is small and the structure is compact. Compared with conventional motors, the speed of the traction machine motor is high, the friction between the rotor and the air gap is aggravated, the heat exchange efficiency of the internal stator and rotor is low, and the heat generated by the traction machine motor increases.

[0003] At present, traditional elevator traction machines are generally cooled by natural cooling. The traction machine motor with high heat generation and low heat exchange efficiency will use natural cooling, which will cause heat to accumulate inside the motor and be difficult to dissipate to the outside in time, causing the temperature of internal components to rise, affecting the working efficiency of the motor. Utility Model Content

[0004] The purpose of the utility model is to provide an elevator outer rotor traction machine motor with a ventilation structure, which has a simple structure, accelerates the heat dissipation in the shell, and protects the components inside the shell.

[0005] The elevator outer rotor traction machine motor with a ventilation structure includes a horizontally arranged rotating shaft, a rotor is fixed on the outside of the rotating shaft, a stator is installed on the outside of the rotor, a shell is installed on the outside of the stator, a base is installed on the bottom of the shell, an extension block is fixed to the left end of the stator, a heat conductive sleeve is mounted on the extension block, a cooling component for reducing the temperature of the stator is arranged on the heat conductive sleeve, and a heat dissipation component for accelerating the air flow inside the shell is arranged at the left end of the rotating shaft.

[0006] Furthermore, the cooling component includes a heat sink, which is arranged on the inner side of the extension block. The heat sink and the heat conductive sleeve are both provided with mounting holes, and a heat conductive pipe is installed in the mounting hole; one end of the heat conductive pipe is installed in the heat conductive sleeve, and the other end is installed in the heat sink.

[0007] Furthermore, the heat sink is an arc-shaped plate structure with its opening facing the rotating shaft.

[0008] Furthermore, there are at least three heat sinks, which are arranged up and down, and the lower end of the heat pipe passes through each heat sink in turn.

[0009] Furthermore, there are at least three heat-conducting pipes; the upper end of each heat-conducting pipe is inserted into the heat-conducting sleeve, and the lower end passes through the heat sink.

[0010] Furthermore, the heat dissipation component includes a mounting sleeve, which is mounted on the left end of the rotating shaft, and a plurality of fan blades are mounted on the mounting sleeve.

[0011] Furthermore, a cover plate is detachably mounted on the left end of the shell, and a plurality of ventilation holes communicating with each other on the left and right are opened on the cover plate.

[0012] Furthermore, filter plates are installed in the ventilation holes.

[0013] Furthermore, a blind hole is opened on the left side wall of the cover plate, and the left end of the rotating shaft is installed in the blind hole through a bearing.

[0014] Furthermore, the top and bottom of the shell are provided with threaded holes, the top and bottom of the cover plate are provided with through holes communicating with the threaded holes, bolts are passed through the through holes, and the bolts are tightened in the threaded holes after passing through the through holes.

[0015] Furthermore, the extension block is in a circular ring structure.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, the heat on the stator is transmitted to the heat-conducting sleeve through the extension block. Under the action of the cooling component, the temperature on the heat-conducting sleeve is reduced, thereby reducing the temperature of the stator. Under the action of the heat dissipation component, the air flow inside the shell is accelerated, and the hot air in the shell can be discharged while enhancing the cooling effect of the cooling component. The two cooperate with each other to accelerate the temperature dissipation rate and protect the components in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure at AA in the middle;

[0020] The names of the components in the figure are: 1, cover plate 2, bolt 3, heat conduction sleeve 4, extension block 5, heat conduction pipe 6, heat sink 7, housing 8, stator 9, shaft 10, rotor 11, base 12, filter plate 13, ventilation hole 14, fan blade 15, mounting sleeve 16, bearing. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0022] Example 1

[0023] The elevator outer rotor traction machine motor with a ventilation structure described in this embodiment is as follows: Figure 1 and Figure 2 As shown, it includes a horizontally arranged rotating shaft 9, a rotor 10 is fixed on the outer side of the rotating shaft 9, a stator 8 is installed on the outer side of the rotor 10, and a housing 7 is installed on the outer side of the stator 8. When the rotating shaft 9 rotates, the rotor 10 rotates along with the rotating shaft 9, and the friction between the rotor 10 and the air gap of the stator 8 generates heat, so that the temperature of the stator 8 increases;

[0024] A base 11 is installed at the bottom of the housing 7, and the base 11 is convenient for installing the housing 7;

[0025] An extension block 4 is fixed to the left end of the stator 8. The extension block 4 is made of a heat-conducting material, generally copper. When the temperature of the stator 8 increases, the temperature of the extension block 4 also increases.

[0026] The extension block 4 is sleeved with a heat-conducting sleeve 3, and the heat-conducting sleeve 3 is wrapped around the extension block 4;

[0027] The extension block 4 is provided with a heat sink 6 on the inner side. The heat sink 6 is supported by a material with high heat transfer efficiency. The heat loss of the heat-conducting sleeve 3 and the extension block 4 is accelerated by the heat sink 6. The heat sink 6 and the heat-conducting sleeve 3 are provided with mounting holes. The bottom of the heat-conducting sleeve 3 is provided with a mounting hole vertically upward. The heat sink 6 is provided with mounting holes that communicate with each other from top to bottom. A heat-conducting pipe 5 is installed in the mounting hole. The heat-conducting pipe 5 is a prior art. It has good heat transfer performance. The heat from one end can be quickly transferred to the other end. One end of the heat-conducting pipe 5 is installed in the heat-conducting sleeve 3, and the other end is installed in the heat sink 6. Figure 1 As shown, the upper end of the heat pipe 5 is installed on the mounting hole of the heat sleeve 3, and the lower end of the heat pipe 5 is installed in the mounting hole of the heat sink 6. The temperature on the heat sleeve 3 passes through the heat pipe 5 and is transmitted to the heat sink 6. The heat sink 6 is located in the shell 7, has a large contact area with the air, and the heat is lost quickly. This paragraph of text as a whole constitutes a cooling component for reducing the temperature of the stator 8. When the cooling component is used, the two ends of the heat pipe 5 are passed through the mounting holes on the heat sleeve 3 and the heat sink 6 in turn, and the heat of the heat sleeve 3 is transmitted to the heat sink 6 through the heat pipe 5. The heat sink 6 has a large contact area with the air and a high heat dissipation efficiency. Of course, the cooling component can also be four groups, such as Figure 2 As shown, four groups of cooling components are distributed in a rectangular shape inside the heat-conducting sleeve 3, and multiple groups of cooling components accelerate the cooling speed of the stator 8;

[0028] The left end of the rotating shaft 9 is provided with a mounting sleeve 15, on which a plurality of fan blades 14 are mounted. The fan blades 14 are arranged on the left side of the cooling component. When the rotating shaft 9 rotates, the mounting sleeve 15 is driven to rotate, thereby driving the fan blades 14 to rotate, thereby accelerating the air flow in the outer shell 7. The air flow takes away the heat from the stator 8 and the rotor 10, and can also accelerate the heat loss from the cooling component, thereby enhancing the effect of the cooling component. This paragraph of text as a whole constitutes a heat dissipation component that accelerates the air flow inside the outer shell 7. Of course, the heat dissipation component can also use a fan, which is installed at the left end of the inner wall of the outer shell 7. The fan accelerates the air flow in the outer shell 7 and accelerates the heat loss in the outer shell 7.

[0029] When this embodiment is used, the heat generated when the rotor 10 rotates increases the temperature of the stator 8, and the temperature is transmitted to the heat-conducting sleeve 3 along the extension block 4. The temperature of the heat-conducting sleeve 3 is reduced by the cooling component, thereby reducing the temperature of the stator 8. When the shaft 9 rotates, the heat dissipation component is driven to work, and the air flow in the shell 7 is accelerated by the heat dissipation component. While the hot air in the shell 7 is discharged, the cooling effect of the cooling component can also be enhanced. The two cooperate with each other to accelerate the temperature loss of the stator 8 and protect the internal components.

[0030] Example 2

[0031] This embodiment further illustrates the technology. Figure 2 As shown, the heat sink 6 is an arc-shaped plate structure with its opening facing the rotating shaft 9. The space inside the housing 7 is limited, and the heat sink 6 with the arc-shaped plate structure is convenient to be installed inside the housing 7. In the limited space, the contact area between the heat sink 6 of the arc-shaped plate and the air is larger, and the heat dissipation effect is better.

[0032] There are at least three heat sinks 6, which are arranged up and down. The lower end of the heat pipe 5 passes through each heat sink 6 in turn. More heat sinks 6 can increase the area in contact with the air, dissipate more temperature in the same time, and have a better heat dissipation effect.

[0033] There are at least three heat-conducting pipes 5; the upper end of each heat-conducting pipe 5 is inserted into the heat-conducting sleeve 3, and the lower end passes through the heat sink 6. Multiple heat-conducting pipes 5 can speed up the transmission speed of the temperature on the heat-conducting sleeve 3, so that the temperature on the heat-conducting sleeve 3 can be transferred to the heat sink 6 faster, and the heat dissipation effect is better.

[0034] Example 3

[0035] This embodiment further illustrates the technology. Figure 1As shown, a cover plate 1 is detachably installed at the left end of the shell 7, and a plurality of ventilation holes 13 communicating with each other on the left and right are opened on the cover plate 1. The left side of the shell 7 is blocked by the cover plate 1 to protect the components inside the shell 7 and prevent foreign matter from entering the shell 7 to ensure the normal operation of the components inside the shell 7. The air inside the shell 7 is exchanged with the outside air through the ventilation holes 13, and the hot air in the shell 7 is discharged from the shell 7 through the ventilation holes 13.

[0036] The ventilation holes 13 are each provided with a filter plate 12 , which blocks foreign matter from entering the housing 7 , thereby ensuring the normal operation of the components inside the housing 7 .

[0037] A blind hole is provided on the left side wall of the cover plate 1, and the left end of the rotating shaft 9 is installed in the blind hole through a bearing 16. The outer ring of the bearing 16 is fixed on the hole wall of the blind hole, and the left end of the rotating shaft 9 is inserted into the inner ring of the bearing. Neither the left end of the rotating shaft 9 nor the inner ring of the bearing contacts the bottom of the blind hole. The rotating shaft 9 is installed in the blind hole through the bearing 16, so that the rotating shaft 9 can rotate stably in the housing 7.

[0038] Example 4

[0039] This embodiment further illustrates the technology. Figure 1 As shown, the top and bottom of the shell 7 are provided with threaded holes, the top and bottom of the cover plate 1 are provided with through holes connected with the threaded holes, and bolts 2 are passed through the through holes. The bolts 2 pass through the through holes and are tightened in the threaded holes. When in use, the bolts 2 are inserted into the through holes, rotated, and tightened in the threaded holes, and the cover plate 1 is installed at the left end of the shell 7. The detachable connection facilitates the inspection of the internal parts of the shell 7.

[0040] In this embodiment, a snap buckle can also be used. A snap buckle is installed on the right end of the cover plate 1, and a slot matching the snap buckle is opened on the left end of the shell 7. After the cover plate 1 is installed on the left end of the shell 7, the snap buckle is inserted into the slot to fix the cover plate 1 on the left end of the shell 7.

[0041] Example 5

[0042] This embodiment further illustrates the technology. Figure 2 As shown, the extension block 4 is in a circular ring structure. The contact area between the extension block 4 and the stator 8 is the largest, which speeds up the transfer of heat from the stator 8 to the extension block 4 and improves the heat dissipation efficiency.

Claims

1. An elevator outer rotor traction machine motor with a ventilation structure, comprising a horizontally arranged rotating shaft (9), a rotor (10) fixed outside the rotating shaft (9), a stator (8) mounted outside the rotor (10), a housing (7) mounted outside the stator (8), a base (11) mounted at the bottom of the housing (7), characterized in that: An extension block (4) is fixed to the left end of the stator (8), a heat-conducting sleeve (3) is sleeved on the extension block (4), a cooling component for reducing the temperature of the stator (8) is arranged on the heat-conducting sleeve (3), and a heat-dissipating component for accelerating the flow of air inside the housing (7) is arranged at the left end of the rotating shaft (9).

2. The elevator outer rotor traction machine motor with ventilation structure according to claim 1, characterized in that: The cooling component comprises a heat sink (6), the heat sink (6) being arranged on the inner side of the extension block (4), the heat sink (6) and the heat-conducting sleeve (3) both being provided with mounting holes, the heat-conducting pipe (5) being inserted into the mounting hole; one end of the heat-conducting pipe (5) is inserted into the heat-conducting sleeve (3), and the other end is inserted into the heat sink (6).

3. The elevator outer rotor traction machine motor with ventilation structure according to claim 2, characterized in that: The heat sink (6) is in the form of an arc-shaped plate structure with its opening facing the rotating shaft (9).

4. The elevator outer rotor traction machine motor with ventilation structure according to claim 3, characterized in that: There are at least three heat sinks (6), which are arranged in an up-and-down manner, and the lower end of the heat pipe (5) passes through each heat sink (6) in sequence.

5. The elevator outer rotor traction machine motor with ventilation structure according to claim 3, characterized in that: There are at least three heat-conducting pipes (5); the upper end of each heat-conducting pipe (5) is inserted into the heat-conducting sleeve (3), and the lower end passes through the heat sink (6).

6. The elevator outer rotor traction machine motor with ventilation structure according to claim 1 or 2, characterized in that: The heat dissipation component comprises a mounting sleeve (15), which is mounted on the left end of the rotating shaft (9), and a plurality of fan blades (14) are mounted on the mounting sleeve (15).

7. The elevator outer rotor traction machine motor with ventilation structure according to claim 1, characterized in that: A cover plate (1) is detachably mounted on the left end of the housing (7), and a plurality of ventilation holes (13) communicating with each other on the left and right are formed on the cover plate (1).

8. The elevator outer rotor traction machine motor with ventilation structure according to claim 7, characterized in that: Filter plates (12) are installed in the ventilation holes (13).

9. The elevator outer rotor traction machine motor with ventilation structure according to claim 7, characterized in that: A blind hole is provided on the left side wall of the cover plate (1), and the left end of the rotating shaft (9) is installed in the blind hole via a bearing (16).

10. The elevator outer rotor traction machine motor with ventilation structure according to claim 7, characterized in that: The top and bottom of the housing (7) are provided with threaded holes, the top and bottom of the cover plate (1) are provided with through holes communicating with the threaded holes, bolts (2) are inserted into the through holes, and the bolts (2) are tightened in the threaded holes after passing through the through holes.

11. The elevator outer rotor traction machine motor with ventilation structure according to claim 1, characterized in that: The extension block (4) is in a circular ring structure.

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