High-temperature-resistant motor for centrifugal fan

Abstract

The utility model discloses a high-temperature-resistant motor for a centrifugal fan. The high-temperature-resistant motor comprises an end cover; the end cover is detachably connected to the shell, and a stator is arranged in the shell; the rotating shaft is connected to the end cover and the shell through bearings, and a rotor is arranged on the rotating shaft; the motor further comprises an air cooling mechanism and a water cooling mechanism, the air cooling mechanism is connected to the rotating shaft, and the water cooling mechanism is connected to the stator and penetrates through the shell through a connector to be connected with external water supply equipment. According to the utility model, the temperature in the motor can be reduced, the aging, deformation or dry crack of insulating materials in the motor can be delayed, the risk of short circuit or open circuit of the motor can be greatly reduced, the service life of lubricating oil can be ensured, and the mechanical property of the motor can be prolonged.

Description

Technical Field

[0001] This utility model relates to a high-temperature resistant motor for centrifugal fans. Background Technology

[0002] Electric motors have a wide range of applications. Depending on the application, the structure of the motor also varies. When the motor is running in a high-temperature environment, the insulation layer of the motor is prone to melting due to excessive temperature, which can lead to short circuit and burnout of the motor. In addition, the lubricating oil is prone to deterioration, which can reduce mechanical performance and affect the service life of the motor. Utility Model Content

[0003] The purpose of this utility model is to provide a technical solution for high-temperature resistant motors for centrifugal fans that addresses the shortcomings of existing technologies. This solution can not only reduce the internal temperature of the motor and delay the aging, deformation, or cracking of the internal insulation materials, but also greatly reduce the risk of short circuits or open circuits in the motor. At the same time, it helps to ensure the service life of the lubricating oil and extend the mechanical performance of the motor.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] High-temperature resistant motors for centrifugal fans include:

[0006] One end cap;

[0007] A housing with end caps detachably connected to it, and a stator located inside the housing;

[0008] A rotating shaft is connected to the end cover and the housing via bearings, and a rotor is mounted on the rotating shaft;

[0009] Its features are:

[0010] It also includes an air-cooling mechanism and a water-cooling mechanism. The air-cooling mechanism is connected to the rotating shaft, and the water-cooling mechanism is connected to the stator. They are connected to an external water supply device through a connector passing through the housing. Through the design of the above structure, not only can the internal temperature of the motor be reduced, delaying the aging, deformation or cracking of the insulation material inside the motor, but also the risk of short circuit or open circuit in the motor can be greatly reduced. At the same time, it is beneficial to ensure the service life of the lubricating oil and extend the mechanical performance of the motor.

[0011] Furthermore, the air-cooling mechanism includes a first fan and a second fan. The first fan is located on the rotating shaft near the end cover, and the second fan is located on the rotating shaft away from the end cover. The first fan and the second fan are located on both sides of the rotor. Through the design of the first fan and the second fan, the airflow speed inside the housing can be increased, which greatly improves the air-cooling effect of the motor.

[0012] Furthermore, the first fan includes a first turntable, first blades, and first reinforcing ribs. The outer circumferential side of the first turntable extends outward to form several first connecting parts. The first blades are inclinedly disposed on one side of each first connecting part, and all the first blades are arranged in the same direction. The first reinforcing ribs are disposed on the first turntable and the first connecting parts. The first turntable is driven to rotate through the rotating shaft, and the first blades can be driven to rotate through the first connecting parts to increase the air flow speed. The first reinforcing ribs improve the overall stability and reliability of the first fan.

[0013] Furthermore, the second fan includes a second turntable, second blades, and a second reinforcing rib. The outer circumferential side of the second turntable extends outward to form several second connecting parts. The second blades are inclinedly disposed on one side of each second connecting part, and all the second blades are arranged in the same direction. The second reinforcing rib is disposed on the second turntable and the second connecting parts. The second turntable is driven to rotate through the rotating shaft, and the second blades can be driven to rotate through the second connecting parts to increase the air flow speed. The second reinforcing rib improves the overall stability and reliability of the second fan.

[0014] Furthermore, the water-cooling mechanism includes heat exchange tubes and heat exchange fins. The stator has annularly distributed arc-shaped grooves, and the heat exchange fins are evenly distributed within the arc-shaped grooves. Adjacent heat exchange fins are connected by heat exchange tubes, which are arranged in an S-shape along the length of the stator. The heat exchange tubes are connected to a connector through an inlet pipe and an outlet pipe. An external water supply device inputs cooling water into the inlet pipe through the connector. The cooling water flows along the heat exchange tubes. The heat inside the motor exchanges heat with the cooling water in the heat exchange tubes through the heat exchange fins, and then is output through the outlet pipe, realizing the recycling of cooling water and improving the water-cooling heat dissipation effect.

[0015] Furthermore, the housing and end cover are respectively provided with air inlet and air outlet, and both the air inlet and air outlet are equipped with filter screens. The air inlet and air outlet facilitate the flow of air inside and outside the motor, and the filter screen can reduce the entry of particulate impurities into the motor, thus protecting the motor.

[0016] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0017] This invention can not only reduce the internal temperature of the motor and delay the aging, deformation or cracking of the internal insulation material, but also greatly reduce the risk of short circuit or open circuit in the motor. At the same time, it helps to ensure the service life of the lubricating oil and extend the mechanical performance of the motor. Attached image description:

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the high-temperature resistant motor for the centrifugal fan of this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the water-cooling mechanism and the stator in this utility model;

[0021] Figure 3 This is a schematic diagram of the water cooling mechanism in this utility model;

[0022] Figure 4 This is a schematic diagram of the connection of the air-cooling mechanism in this utility model.

[0023] Figure 5 for Figure 4 A schematic diagram of the structure in direction A.

[0024] In the diagram: 1-Shell; 2-End cover; 3-Shaft; 4-Stator; 5-Rotor; 6-First fan; 7-Second fan; 8-Bearing; 9-Air inlet; 10-Air outlet; 11-Arc-shaped groove; 12-Water cooling mechanism; 13-Heat exchange fins; 14-Heat exchange tube; 15-Water inlet pipe; 16-Water outlet pipe; 17-First turntable; 18-First blade; 19-First reinforcing rib; 20-Second turntable; 21-Second blade; 22-Second reinforcing rib; 23-Joint; 24-First connecting part; 25-Second connecting part. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0028] like Figures 1 to 5 As shown, the present invention relates to a high-temperature resistant motor for centrifugal fans, comprising: an end cover 2, a housing 1, and a rotating shaft 3.

[0029] The end cover 2 is detachably connected to the housing 1. The housing 1 contains a stator 4, and the stator 4 has a hollow channel for mounting the rotor 5. The housing 1 and the end cover 2 are respectively provided with an air inlet 9 and an air outlet 10. Both the air inlet 9 and the air outlet 10 are equipped with filters. The air inlet 9 and the air outlet 10 facilitate the flow of air inside and outside the motor, and the filters can reduce the entry of particulate impurities into the motor, thus protecting the motor.

[0030] The rotating shaft 3 is connected to the end cover 2 and the housing 1 via the bearing 8, and the rotating shaft 3 is equipped with a rotor 5.

[0031] The high-temperature resistant motor also includes an air-cooling mechanism and a water-cooling mechanism 12. The air-cooling mechanism is connected to the rotating shaft 3. The air-cooling mechanism includes a first fan 6 and a second fan 7. The first fan 6 is located on the rotating shaft 3 near the end cover 2, and the second fan 7 is located on the rotating shaft 3 away from the end cover 2. The first fan 6 and the second fan 7 are located on both sides of the rotor 5. Through the design of the first fan 6 and the second fan 7, the airflow speed inside the housing 1 can be increased, which greatly improves the air-cooling effect of the motor.

[0032] The first fan 6 includes a first turntable 17, first blades 18, and first reinforcing ribs 19. The outer circumferential side of the first turntable 17 extends outward to form several first connecting parts 24. The first blades 18 are inclinedly disposed on one side of each first connecting part 24, and all the first blades 18 are arranged in the same direction. The first reinforcing ribs 19 are disposed on the first turntable 17 and the first connecting parts 24. The first turntable 17 is driven to rotate by the rotating shaft 3, and then the first blades 18 can be driven to rotate through the first connecting parts 24, thereby increasing the air flow speed. The first reinforcing ribs 19 improve the overall stability and reliability of the first fan 6.

[0033] The second fan 7 includes a second turntable 20, second blades 21, and second reinforcing ribs 22. The outer circumferential side of the second turntable 20 extends outward to form several second connecting parts 25. The second blades 21 are inclinedly disposed on one side of each second connecting part 25, and all the second blades 21 are arranged in the same direction. The second reinforcing ribs 22 are disposed on the second turntable 20 and the second connecting parts 25. The second turntable 20 is driven to rotate by the rotating shaft 3, and the second blades 21 can be driven to rotate through the second connecting parts 25, thereby increasing the air flow speed. The second reinforcing ribs 22 improve the overall stability and reliability of the second fan 7.

[0034] The water-cooling mechanism 12 is connected to the stator 4 and passes through the housing 1 via a connector 23 to connect to an external water supply device. The water-cooling mechanism 12 includes heat exchange tubes 14 and heat exchange fins 13. The stator 4 has annularly distributed arc-shaped grooves 11, and the heat exchange fins 13 are evenly distributed within the arc-shaped grooves 11. Adjacent heat exchange fins 13 are connected by heat exchange tubes 14. The heat exchange tubes 14 are arranged in an S-shape along the length of the stator 4. The heat exchange tubes 14 are connected to the connector 23 via an inlet pipe 15 and an outlet pipe 16. The external water supply device inputs cooling water into the inlet pipe 15 through the connector 23. The cooling water flows along the heat exchange tubes 14. The heat inside the motor exchanges heat with the cooling water in the heat exchange tubes 14 through the heat exchange fins 13 and is then output through the outlet pipe 16, realizing the recycling of cooling water and improving the water cooling effect.

[0035] The above structural design not only reduces the internal temperature of the motor and slows down the aging, deformation, or cracking of the internal insulation materials, but also greatly reduces the risk of short circuits or open circuits in the motor. At the same time, it helps to ensure the service life of the lubricating oil and extend the mechanical performance of the motor.

[0036] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to achieve essentially the same technical effect are all covered within the protection scope of this utility model.

Claims

1. High-temperature resistant motors for centrifugal fans, including: One end cap; A housing, wherein the end cap is detachably connected to the housing, and a stator is provided inside the housing; A rotating shaft is provided, wherein the rotating shaft is connected to the end cover and the housing via a bearing, and a rotor is provided on the rotating shaft; Its features are: It also includes an air-cooling mechanism and a water-cooling mechanism. The air-cooling mechanism is connected to the rotating shaft, and the water-cooling mechanism is connected to the stator and passes through the housing to connect to an external water supply device via a connector. The water-cooling mechanism includes heat exchange tubes and heat exchange fins. The stator has annularly distributed arc-shaped grooves, and the heat exchange fins are evenly distributed in the arc-shaped grooves. Adjacent heat exchange fins are connected by heat exchange tubes. The heat exchange tubes are arranged in an S-shape along the length of the stator and are connected to the connector via inlet and outlet water pipes.

2. The high-temperature resistant motor for centrifugal fans according to claim 1, characterized in that: The air-cooling mechanism includes a first fan and a second fan. The first fan is located on the rotating shaft near the end cover, and the second fan is located on the rotating shaft away from the end cover. The first fan and the second fan are located on opposite sides of the rotor.

3. The high-temperature resistant motor for centrifugal fans according to claim 2, characterized in that: The first fan includes a first turntable, a first blade, and a first reinforcing rib. The outer circumferential side of the first turntable extends outward to form a plurality of first connecting portions. The first blade is inclinedly disposed on one side of each first connecting portion. All the first blades are arranged in the same direction. The first reinforcing rib is disposed on the first turntable and the first connecting portion.

4. The high-temperature resistant motor for centrifugal fans according to claim 2, characterized in that: The second fan includes a second turntable, a second blade, and a second reinforcing rib. The outer circumferential side of the second turntable extends outward to form several second connecting parts. The second blade is inclinedly disposed on one side of each second connecting part. The second blades are all arranged in the same direction. The second reinforcing rib is disposed on the second turntable and the second connecting parts.

5. The high-temperature resistant motor for centrifugal fans according to claim 1, characterized in that: The housing and the end cap are respectively provided with an air inlet and an air outlet, and both the air inlet and the air outlet are provided with filters.

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