A centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor

Abstract

This utility model relates to the field of heat dissipation technology for anti-demagnetizing rotors, and discloses a centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor, including a base, a control compartment on one side of the base, a controller installed inside the control compartment, and a first positioning groove on the top of the base, with a motor housing fixedly installed at the bottom of the inner cavity of the first positioning groove. This utility model uses a drive motor to rotate an impeller, generating negative pressure near the inlet. External air enters the air intake channel and is divided into two paths, which dissipate heat to the inside and outside of the motor housing respectively. This simultaneous heat dissipation from both the inside and outside of the motor housing removes the working heat of the anti-demagnetizing rotor. A cooling component further cools the external air, resulting in better heat dissipation efficiency and effect, effectively preventing the accumulation of working heat inside the motor housing and ensuring the stable operation of the anti-demagnetizing rotor.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for anti-demagnetizing rotors, specifically a centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor. Background Technology

[0002] Anti-demagnetizing rotors are motor rotor devices that reduce the risk of magnet demagnetization through specific structural design or material selection. They reduce the risk of magnet demagnetization in high-temperature environments through a heat dissipation protection mechanism of copper jacket. They are suitable for applications with high temperature resistance requirements, such as permanent magnet motors. During the operation of anti-demagnetizing rotors, in order to avoid irreversible changes in the magnetic domain structure of anti-demagnetizing rotors caused by high-temperature environments, heat dissipation structures are needed to keep the temperature of anti-demagnetizing rotors in a normal and stable state.

[0003] Existing anti-demagnetizing rotors typically achieve heat exchange and cooling through heat dissipation fins on the outside of the motor housing. However, this method of relying solely on forced convection between the heat dissipation fins and the surrounding air for heat exchange and cooling is relatively inefficient and ineffective. Due to the lack of a mechanism that can directly exhaust the air inside the motor housing for cooling, the working heat around the anti-demagnetizing rotor is difficult to dissipate effectively through the heat dissipation fins, which is detrimental to the normal operation of the anti-demagnetizing rotor. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor, comprising:

[0006] The base has a control compartment on one side, a controller is installed inside the control compartment, and a first positioning groove is provided on the top of the base. A motor housing is fixedly installed at the bottom of the inner cavity of the first positioning groove.

[0007] The second positioning groove is set on the top of the base. The inside of the second positioning groove is a fan housing. The fan housing has an inlet on one side and an outlet on the top.

[0008] A enclosure cover is positioned above the first positioning groove. The end of the enclosure cover away from the fan casing is equipped with a cooling component that can simultaneously dissipate heat from the inside and outside of the motor casing to improve the overall heat dissipation efficiency.

[0009] Preferably, a first end cover is provided at one end of the motor housing opening, and a second end cover is provided at the other end of the motor housing opening. An anti-demagnetizing rotor is provided between the first end cover and the second end cover. A stator core is provided around the anti-demagnetizing rotor, and a stator winding is provided inside the stator core.

[0010] Preferably, multiple heat dissipation grooves are symmetrically formed inside the first end cover and the second end cover, and a dust filter screen is fixedly connected inside each heat dissipation groove.

[0011] Preferably, the fan casing has an impeller inside, the axis of the impeller and the suction port are in the same plane, a drive motor is fixedly installed on one side of the fan casing, the output end of the drive motor passes through the fan casing and is connected to the impeller, and the drive motor is connected to the controller terminal through a data cable.

[0012] Preferably, a sealing ring is provided on the outer side of the suction port, and sealing grooves corresponding to the sealing ring are provided on the outer wall of the suction port, the inner wall of the enclosure cover plate, and the inner wall of the first positioning groove, and the sealing ring is located inside the sealing groove.

[0013] Preferably, the cooling component includes a first support cylinder disposed at one end of the enclosure cover, a second support cylinder coaxially disposed inside the first support cylinder, and limiting grooves formed inside both the first and second support cylinders. A heat-conducting cylinder is fixedly connected inside the limiting groove, and multiple circulating ribs are symmetrically installed on the outer side of the heat-conducting cylinder. An inlet pipe is disposed below the first support cylinder, and an outlet pipe is disposed on one side of the inlet pipe. The circulating ribs are connected to the inlet pipe and the outlet pipe respectively through pipes. The first support cylinder is connected to the enclosure cover and the base respectively by bolts.

[0014] Preferably, multiple heat-conducting plates are symmetrically installed on the inner wall of the heat-conducting cylinder, and the heat-conducting cylinder and heat-conducting plates are made of copper, aluminum or steel.

[0015] Preferably, a gas temperature sensor is fixedly installed on the inner wall of the outlet, and the gas temperature sensor is connected to the controller terminal via a data cable.

[0016] Preferably, the enclosure cover is connected to the base by bolts, and docking seats are fixedly installed at the bottom of one side of the fan casing and at the edge of one side of the second positioning groove, and the docking seats are connected to each other by bolts.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention uses a drive motor to rotate an impeller, generating negative pressure near the inlet. This causes external air to enter the air intake channel and split into two paths. These two paths dissipate heat from both the inside and outside of the motor housing. This simultaneous heat dissipation from both the inside and outside of the motor housing removes the working heat of the anti-demagnetizing rotor, further improving heat dissipation efficiency and effect. The cooling component further cools the external air, resulting in even better heat dissipation efficiency and effect. This effectively prevents the accumulation of working heat inside the motor housing, ensuring the stable operation of the anti-demagnetizing rotor. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the centrifugal ventilation and heat dissipation structure of the anti-demagnetizing rotor provided by this utility model;

[0020] Figure 2 A schematic diagram of the rear view structure provided for this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the fan casing provided by this utility model;

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 A schematic diagram of the internal structure of the first positioning groove provided by this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the motor housing provided by this utility model;

[0025] Figure 7 A schematic diagram of the specific structure of the first support cylinder provided by this utility model;

[0026] Figure 8 A schematic diagram of the cooling component structure provided by this utility model;

[0027] Figure 9 A schematic diagram of the specific structure of the circulating rib tube provided by this utility model.

[0028] In the diagram: 1. Base; 2. First positioning groove; 3. Motor housing; 4. Anti-demagnetizing rotor; 5. Stator core; 6. Stator winding; 7. First end cover; 8. Second end cover; 9. Heat dissipation groove; 10. Dust filter; 11. Enclosure cover; 12. Second positioning groove; 13. Fan housing; 14. Inlet; 15. Outlet; 16. Drive motor; 17. Impeller; 18. Connecting seat; 19. Sealing groove; 20. Sealing ring; 21. Gas temperature sensor; 22. Control chamber; 23. Cooling component; 231. First support cylinder; 232. Second support cylinder; 233. Limiting groove; 234. Heat conducting cylinder; 235. Circulation fin tube; 236. Liquid inlet pipe; 237. Liquid outlet pipe; 24. Heat conducting plate. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-9 As shown, a centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor includes a base 1. A control compartment 22 is located on one side of the base 1. A controller is installed inside the control compartment 22. The controller inside the control compartment 22 allows for centralized control of other electronic components, facilitating coordination of their operation and improving automation and intelligence. It should be noted that the controller can be a PLC controller or an integrated motherboard. A first positioning groove 2 is located on the top of the base 1, and a motor housing 3 is fixedly installed at the bottom of the inner cavity of the first positioning groove 2. A second positioning groove 12 is located on the top of the base 1, and a fan housing 13 is located inside the second positioning groove 12. A suction port 14 is provided on one side of the fan housing 13, and an exhaust port 15 is provided on the top of the fan housing 13. A baffle plate 11 is provided above the first positioning groove 2. A cooling component 23 is provided at the end of the baffle plate 11 away from the fan housing 13, which can simultaneously dissipate heat from the inside and outside of the motor housing 3 to improve the overall heat dissipation efficiency. By setting the cooling component 23, the outside air can be cooled before entering the air intake channel composed of the baffle plate 11 and the first positioning groove 2. The cooled air will carry away the working heat when passing through the inside and outside of the motor housing 3, thereby effectively preventing the working heat from accumulating inside the motor housing 3, which is conducive to improving the heat dissipation efficiency and heat dissipation effect.

[0031] A first end cover 7 is provided at one end of the motor housing 3, and a second end cover 8 is provided at the other end of the motor housing 3. An anti-demagnetizing rotor 4 is located between the first end cover 7 and the second end cover 8. A stator core 5 is located around the anti-demagnetizing rotor 4, and a stator winding 6 is located inside the stator core 5. Figure 3 , Figure 5 and Figure 6 As shown, in the prior art, a permanent magnet motor is usually composed of a motor housing 3, a first end cover 7, a second end cover 8, an anti-demagnetizing rotor 4, a stator core 5, and a stator winding 6. The anti-demagnetizing rotor 4 is an important component of the permanent magnet motor, and its core function is to delay or reduce the demagnetization of the magnets caused by high temperature or design defects during the operation of the permanent magnet motor, thereby extending the service life of the permanent magnet motor and ensuring operational stability. In this utility model, the motor housing 3 and the anti-demagnetizing rotor 4 inside it are placed inside the air inlet channel composed of the enclosure cover 11 and the first positioning groove 2. The axes of the motor housing 3, the anti-demagnetizing rotor 4, and the air inlet channel are all in the same plane, so that the air entering the air inlet channel can more smoothly carry away the working heat accumulated inside and outside the motor housing 3, thus keeping the ambient temperature around the anti-demagnetizing rotor 4 stable.

[0032] Multiple heat dissipation grooves 9 are symmetrically formed inside the first end cover 7 and the second end cover 8. A dust filter screen 10 is fixedly connected inside each heat dissipation groove 9. Figure 6 As shown, the dust filter 10 inside the heat dissipation tank 9 can block dust and other impurities without hindering the entry of external air into the motor housing 3. This can prevent dust and other impurities from affecting the operation of the anti-demagnetizing rotor 4, stator core 5 and stator winding 6 after a long period of time entering the motor housing 3.

[0033] An impeller 17 is housed inside the fan casing 13. The axis of the impeller 17 and the inlet 14 are in the same plane. A drive motor 16 is fixedly mounted on one side of the fan casing 13. The output end of the drive motor 16 passes through the fan casing 13 and is connected to the impeller 17. The drive motor 16 is connected to the controller terminal via a data cable. Figure 1 , Figure 2 and Figure 3As shown, in the prior art, centrifugal fans typically consist of a fan casing 13, an impeller 17, a drive motor 16, an inlet 14, and an outlet 15. The unique design of the centrifugal fan allows air to efficiently pass through the impeller 17 to form a powerful airflow, thereby quickly removing the heat generated by the equipment. In this invention, the drive motor 16 drives the impeller 17 to rotate, which generates a negative pressure near the inlet 14. This allows external air to enter the air intake channel composed of the enclosure cover 11 and the first positioning groove 2, and then split into two paths. One path of air passes through the outside of the motor casing 3 and carries away the working heat from the heat dissipation fins. The other path of air enters the inside of the motor casing 3 through the heat exhaust groove 9 and directly acts on the anti-demagnetizing rotor 4, carrying away the working heat. In this way, the working heat of the anti-demagnetizing rotor 4 is removed by simultaneously dissipating heat inside and outside the motor casing 3, further improving the heat dissipation efficiency and effect.

[0034] A sealing ring 20 is provided on the outer side of the suction port 14. Sealing grooves 19 corresponding to the sealing ring 20 are provided on the outer wall of the suction port 14, the inner wall of the enclosure cover plate 11, and the inner wall of the first positioning groove 2. The sealing ring 20 is located inside the sealing groove 19. Figure 3 , Figure 4 As shown, by setting the sealing ring 20, external air can be prevented from leaking from the gap between the intake port 14, the enclosure cover plate 11, and the first positioning groove 2, thereby improving the air intake effect of the intake port 14.

[0035] The cooling component 23 includes a first support cylinder 231 disposed at one end of the enclosure cover 11. A second support cylinder 232 is coaxially disposed inside the first support cylinder 231. Limiting grooves 233 are formed inside both the first and second support cylinders 232. A heat-conducting cylinder 234 is fixedly connected inside the limiting grooves 233. Multiple circulating ribs 235 are symmetrically installed on the outer side of the heat-conducting cylinder 234. An inlet pipe 236 is disposed below the first support cylinder 231, and an outlet pipe 237 is disposed on one side of the inlet pipe 236. The circulating ribs 235 are connected to the inlet pipe 236 and the outlet pipe 237 respectively via pipes. The first support cylinder 231 is connected to the enclosure cover 11 and the base 1 respectively by bolts. Figure 7 , Figure 8 and Figure 9As shown, in actual use, to ensure the cooling effect on the outside air, the liquid inlet pipe 236 and the liquid outlet pipe 237 need to be connected to the external cold water pipe, or they can be directly connected to the cold water inlet and outlet of the chiller unit. After the cold water enters the interior of each circulating finned tube 235 through the liquid inlet pipe 236, it can carry away the heat of the heat-conducting cylinder 234 inside the limiting groove 233 along the way, keeping the heat-conducting cylinder 234 at a low temperature. Then, before the outside air enters the air inlet channel composed of the enclosure cover plate 11 and the first positioning groove 2, it will come into contact with the heat-conducting cylinder 234, thereby achieving the cooling effect on the outside air. The cooled air is then divided into two paths to dissipate heat to the inside and outside of the motor housing 3. Compared with the existing common method of only using heat exchange fins for cooling, the heat dissipation efficiency and effect are better, which can effectively prevent the accumulation of working heat inside the motor housing 3 and ensure the stable operation of the anti-demagnetizing rotor 4.

[0036] Multiple heat-conducting plates 24 are symmetrically installed on the inner wall of the heat-conducting cylinder 234. The heat-conducting cylinder 234 and the heat-conducting plates 24 are made of copper, aluminum, or steel. Figure 7 , Figure 8 As shown, the heat-conducting plate 24 can increase the contact area between the heat-conducting cylinder 234 and the external air, which can improve the cooling effect on the external air and further improve the heat dissipation efficiency and effect.

[0037] A gas temperature sensor 21 is fixedly installed on the inner wall of the outlet 15. The gas temperature sensor 21 is connected to the controller terminal via a data cable. Figure 1 , Figure 3 As shown, after the anti-demagnetizing rotor 4 stops running, its interior will still remain at a high temperature because the working heat has not been completely dissipated. At this time, the air passing through the outlet 15 is monitored in real time by the gas temperature sensor 21. When the air at the outlet 15 returns to the preset threshold of the gas temperature sensor 21, the gas temperature sensor 21 will send a signal to the controller. The controller will then turn off the drive motor 16 to stop the heat dissipation work, so as to continue to dissipate heat after the anti-demagnetizing rotor 4 stops running, ensuring that the anti-demagnetizing rotor 4 returns to normal.

[0038] The enclosure cover 11 is bolted to the base 1. A mating seat 18 is fixedly installed on one side of the bottom of the fan casing 13 and on one side of the edge of the second positioning groove 12. The mating seats 18 are bolted together. Figure 1 , Figure 2 and Figure 5 As shown, the enclosure cover 11 and the fan housing 13 can be removed from the base 1, which facilitates the maintenance and repair of the internal components of the first positioning groove 2 and the fan housing 13 as a whole, thus improving practicality.

[0039] Working principle: First, the motor housing 3 and its internal anti-demagnetizing rotor 4 are placed inside the air intake channel composed of the enclosure cover 11 and the first positioning groove 2. Then, the impeller 17 is rotated by the drive motor 16 to generate negative pressure near the suction port 14, so that the external air enters the air intake channel composed of the enclosure cover 11 and the first positioning groove 2 and is divided into two paths. The two paths of air will dissipate heat to the inside and outside of the motor housing 3 respectively. In this way, the working heat of the anti-demagnetizing rotor 4 is carried away by the simultaneous heat dissipation of the inside and outside of the motor housing 3, which further improves the heat dissipation efficiency and effect. In this process, the cooling component 23 can cool the external air. Compared with the existing common method of only heat exchange cooling through heat dissipation fins, the cooling air has better heat dissipation efficiency and effect, which can effectively prevent the working heat from accumulating inside the motor housing 3 and ensure the stable operation of the anti-demagnetizing rotor 4.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] 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 centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor, characterized in that, include: The base (1) has a control compartment (22) on one side, and a controller is installed inside the control compartment (22). The top of the base (1) has a first positioning groove (2), and a motor housing (3) is fixedly installed at the bottom of the inner cavity of the first positioning groove (2). The second positioning groove (12) is set on the top of the base (1). The inside of the second positioning groove (12) is provided with a fan housing (13). The fan housing (13) has an inlet (14) on one side and an outlet (15) on the top of the fan housing (13). The enclosure cover (11) is located above the first positioning groove (2). The end of the enclosure cover (11) away from the fan housing (13) is provided with a cooling component (23) that can simultaneously heat the inside and outside of the motor housing (3) to improve the overall heat dissipation efficiency.

2. The centrifugal ventilation and heat dissipation structure of a demagnetization-proof rotor according to claim 1, characterized in that: The motor housing (3) has a first end cover (7) at one end of the opening and a second end cover (8) at the other end of the opening. An anti-demagnetizing rotor (4) is provided between the first end cover (7) and the second end cover (8). A stator core (5) is provided around the anti-demagnetizing rotor (4), and a stator winding (6) is provided inside the stator core (5).

3. The centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor according to claim 2, characterized in that: Multiple heat dissipation grooves (9) are symmetrically provided inside the first end cover (7) and the second end cover (8), and a dust filter screen (10) is fixedly connected inside each heat dissipation groove (9).

4. The centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor according to claim 1, characterized in that: The fan casing (13) is equipped with an impeller (17) inside. The axis of the impeller (17) and the suction port (14) are in the same plane. A drive motor (16) is fixedly installed on one side of the fan casing (13). The output end of the drive motor (16) passes through the fan casing (13) and is connected to the impeller (17). The drive motor (16) is connected to the controller terminal through a data cable.

5. The centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor according to claim 1, characterized in that: A sealing ring (20) is provided on the outside of the suction port (14). A sealing groove (19) corresponding to the sealing ring (20) is provided on the outer wall of the suction port (14), the inner wall of the enclosure cover plate (11), and the inner wall of the first positioning groove (2). The sealing ring (20) is located inside the sealing groove (19).

6. The centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor according to claim 1, characterized in that: The cooling component (23) includes a first support cylinder (231) disposed at one end of the enclosure cover (11). A second support cylinder (232) is coaxially disposed inside the first support cylinder (231). Limiting grooves (233) are provided inside the first support cylinder (231) and the second support cylinder (232). A heat-conducting cylinder (234) is fixedly connected inside the limiting groove (233). Multiple circulating ribs (235) are symmetrically installed on the outside of the heat-conducting cylinder (234). An inlet pipe (236) is provided below the first support cylinder (231). An outlet pipe (237) is provided on one side of the inlet pipe (236). The circulating ribs (235) are connected to the inlet pipe (236) and the outlet pipe (237) respectively through pipes. The first support cylinder (231) is connected to the enclosure cover (11) and the base (1) respectively through bolts.

7. The centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor according to claim 6, characterized in that: Multiple heat-conducting plates (24) are symmetrically installed on the inner wall of the heat-conducting cylinder (234). The heat-conducting cylinder (234) and the heat-conducting plates (24) are made of copper, aluminum or steel.

8. The centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor according to claim 1, characterized in that: A gas temperature sensor (21) is fixedly installed on the inner wall of the outlet (15), and the gas temperature sensor (21) is connected to the controller terminal via a data cable.

9. The centrifugal ventilation and heat dissipation structure for an anti-demagnetizing rotor according to claim 1, characterized in that: The enclosure cover (11) is connected to the base (1) by bolts. A docking seat (18) is fixedly installed on the bottom side of one side of the fan casing (13) and the edge of one side of the second positioning groove (12). The docking seats (18) are connected to each other by bolts.

Images