Water-cooled permanent magnet speed regulator
By setting synchronously moving water-cooled cooling sleeves on the outside of the conductive rotor and linking them together, the problem of reduced heat exchange efficiency caused by changes in the distance between the conductive rotor and the permanent magnet rotor is solved, achieving stable heat dissipation efficiency and long-term operation of the cooling system.
Patent Information
- Application Number
- CN202520783778.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-24
AI Technical Summary
Existing water-cooled permanent magnet speed controllers suffer from reduced heat exchange efficiency and decreased heat dissipation efficiency when the distance between the conductive rotor and the permanent magnet rotor changes.
A synchronously moving water-cooled cooling sleeve is installed on the outside of the conductive rotor, and is linked by a connecting plate to maintain the heat exchange efficiency between the conductive rotor and the water-cooled cooling sleeve; a three-hole connector and a double-hole sliding pipe design are adopted to clean the filter screen impurities and reduce the risk of clogging.
Maintaining a constant distance between the conductive rotor and the water-cooled cooling sleeve ensures stable heat dissipation efficiency, reduces dependence on cooling water cleanliness, and minimizes the risk of blockage.
Smart Images

Figure CN223829213U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to permanent magnet speed regulator technical field, concretely relates to a water -cooled permanent magnet speed regulator. BACKGROUND
[0002] Permanent magnet speed regulator is a kind of transmission equipment by air gap transmission torque, mainly used for the torque transmission between motor and load equipment, and water-cooled permanent magnet speed regulator is integrated water cooling system on shell, and heat exchange is completed by cooling liquid flow, and the heat dissipation of shell interior is guaranteed, the normal operation of permanent magnet speed regulator is guaranteed.
[0003] The existing water-cooled permanent magnet speed regulator generally integrates water-cooled copper pipe on shell or is installed in the interior of shell by fixed connection, and the distance between electrically-conductive rotor and permanent magnet rotor needs to be adjusted when permanent magnet speed regulator works, which leads to the change of the distance between water-cooled copper pipe and electrically-conductive rotor and permanent magnet rotor, causes the distance between them to increase, reduces the efficiency of heat exchange, thereby the efficiency of heat dissipation is reduced. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of water-cooled permanent magnet speed regulator, by setting synchronous movement water-cooled cooling jacket board outside the electrically-conductive rotor of movement, keep the heat exchange efficiency between electrically-conductive rotor and water-cooled cooling jacket board, guarantee the heat dissipation efficiency of electrically-conductive rotor.
[0005] The technical scheme adopted by the utility model is as follows:
[0006] A kind of water-cooled permanent magnet speed regulator, including shell, the inside one end of the shell is rotatably installed with permanent magnet rotor, the one end of the permanent magnet rotor is fixed with carrier shaft, the one end of the carrier shaft passes through shell and is located at the outside of shell, the inside other end of the shell is rotatably installed with conductor rotor, the outside of the conductor rotor is provided with first water-cooled heat dissipation jacket, the one end of the first water-cooled heat dissipation jacket is fixed with first water inlet pipeline and first water outlet pipeline, the one end of the first water inlet pipeline and first water outlet pipeline passes through shell and is located at the outside of shell, the one end of the conductor rotor away from permanent magnet rotor is fixed with output shaft, the output shaft, first water inlet pipeline and first water outlet pipeline are connected by joint plate, the output shaft is rotatably connected with joint plate.
[0007] Further, the inside of the shell is also installed with second water-cooled heat dissipation jacket, the second water-cooled heat dissipation jacket is arranged at the outside of permanent magnet rotor, the one end of the second water-cooled heat dissipation jacket is fixed with second water inlet pipeline and second water outlet pipeline, the one end of the second water inlet pipeline and second water outlet pipeline passes through shell and is located at the outside of shell.
[0008] Furthermore, each of the first inlet pipe, the first outlet pipe, the second inlet pipe, and the second outlet pipe is provided with a filter interface at one end. The filter interface includes a three-hole connector, a quick-connect pipe is fixed in the middle of one end of the three-hole connector, and a double-hole sliding connecting pipe is slidably installed inside the three-hole connector.
[0009] Furthermore, the top of the three-hole connector is provided with a sliding groove, the top of the double-hole sliding connecting pipe is fixed with a slider, the slider is located inside the sliding groove, and the top of the three-hole connector is rotatably connected with a screw, the screw being threadedly connected to the slider.
[0010] Furthermore, a filter screen is fixed in the middle of one end of the three-hole connector.
[0011] Furthermore, a bearing is installed at one end of the output shaft and at the connection point with the combined plate.
[0012] The technical effects achieved by this utility model are as follows:
[0013] This utility model uses a connecting plate to link the first water inlet pipe and the first water outlet pipe of the first water-cooled heat dissipation jacket with the output shaft of the conductor rotor, so that the first water-cooled heat dissipation jacket can move along with the conductor rotor during the adjustment of the conductor rotor's movement, ensuring that the heat dissipation distance between the conductor rotor and the first water-cooled heat dissipation jacket remains constant no matter how the conductor rotor moves, thus avoiding a decrease in heat dissipation efficiency due to displacement.
[0014] This invention, through the design of a three-hole connector and a two-hole sliding pipe, can clean the impurities remaining on the filter screen surface by switching the holes of the two-hole sliding pipe when the filter screen is clogged with impurities, reducing dependence on the cleanliness of the cooling water and reducing the risk of clogging. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is an exploded view of a partial structure of the present invention;
[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 4 This is an exploded view of a portion of the filter interface of this utility model;
[0019] Figure 5 This utility model Figure 3 A schematic diagram of the structure at point A in the middle.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Housing; 3. Filter interface; 11. Permanent magnet rotor; 12. Conductor rotor; 13. Carrier shaft; 14. Output shaft; 15. Bearing; 16. Connecting plate; 21. First water-cooling heat dissipation jacket; 22. First water inlet pipe; 23. First water outlet pipe; 24. Second water-cooling heat dissipation jacket; 25. Second water inlet pipe; 26. Second water outlet pipe; 31. Three-hole connector; 32. Quick-connect pipe; 33. Double-hole sliding connecting pipe; 34. Filter screen; 35. Slider; 36. Screw. Detailed Implementation
[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0023] like Figures 1 to 5 As shown, a water-cooled permanent magnet speed regulator includes a housing 1. A permanent magnet rotor 11 is rotatably mounted at one end inside the housing 1. A carrier shaft 13 is fixed to one end of the permanent magnet rotor 11. One end of the carrier shaft 13 passes through the housing 1 and is located outside the housing 1. A conductor rotor 12 is rotatably mounted at the other end inside the housing 1. A first water-cooled heat dissipation jacket 21 is provided on the outside of the conductor rotor 12. A first water-cooled heat dissipation jacket 21 has a first water inlet pipe 22 and a first water outlet pipe 23 fixed to one end. One end of the first water inlet pipe 22 and the first water outlet pipe 23 passes through the housing 1 and is located outside the housing 1. Externally, an output shaft 14 is fixed to one end of the conductor rotor 12 away from the permanent magnet rotor 11. The output shaft 14, the first water inlet pipe 22 and the first water outlet pipe 23 are connected by a connecting plate 16. The output shaft 14 is rotatably connected to the connecting plate 16. A second water-cooled heat dissipation jacket 24 is also installed inside the housing 1. The second water-cooled heat dissipation jacket 24 is located outside the permanent magnet rotor 11. A second water inlet pipe 25 and a second water outlet pipe 26 are fixed to one end of the second water-cooled heat dissipation jacket 24. One end of the second water inlet pipe 25 and the second water outlet pipe 26 passes through the housing 1 and is located outside the housing 1.
[0024] In the above, the output shaft 14 is connected to an external motor, and the carrier shaft 13 is connected to an external load. When adjusting the speed of the load device, the external motor is moved to slide, which drives the output shaft 14 and the conductor rotor 12 to move together inside the housing 1. The distance between the permanent magnet rotor 11 and the conductor rotor 12 is adjusted, and the speed of the permanent magnet rotor 11 is changed, thereby adjusting the speed of the load device. At the same time, the output shaft 14 is connected to the first water inlet pipe 22 and the first water outlet pipe 23 through the connecting plate 16. When the conductor rotor 12 moves, its external first water-cooled heat dissipation jacket 21 can move together, thereby keeping the distance between the conductor rotor 12 and the first water-cooled heat dissipation jacket 21 constant and maintaining the heat dissipation efficiency of the conductor rotor 12. The permanent magnet rotor 11 does not need to move during this process. Its external second water-cooled heat dissipation jacket 24 is fixed in position for heat dissipation.
[0025] Furthermore, a bearing 15 is installed at one end of the output shaft 14 and at the connection point with the connecting plate 16.
[0026] Please refer to the following: Figure 4 and Figure 5 As shown, a filter interface 3 is provided at one end of the first water inlet pipe 22, the first water outlet pipe 23, the second water inlet pipe 25, and the second water outlet pipe 26. The filter interface 3 includes a three-hole connector 31. A quick-connect pipe 32 is fixed to the middle of one end of the three-hole connector 31. A double-hole sliding connecting pipe 33 is slidably installed inside the three-hole connector 31. A sliding groove is provided at the top of the three-hole connector 31. A slider 35 is fixed to the top of the double-hole sliding connecting pipe 33. The slider 35 is located inside the sliding groove. A screw 36 is rotatably connected to the top of the three-hole connector 31. The screw 36 is threadedly connected to the slider 35. A filter screen 34 is fixed to the middle of one end of the three-hole connector 31.
[0027] In the above, the quick-connect pipe 32 is used to quickly connect to the external cooling water circulation pipe, and the filter screen 34 can filter out impurities in the cooling medium, thereby reducing the requirements of the cooling medium used by the device. Heat exchange can be carried out without the use of clean water source, and can effectively avoid blockage caused by impurities.
[0028] In the workflow, one of the holes of the double-hole sliding pipe 33 is aligned with the hole in the middle of the three-hole connector 31, allowing cooling water to flow into or out of the first water-cooled heat dissipation jacket 21 and the second water-cooled heat dissipation jacket 24. During the process, the filter screen 34 intercepts impurities in the coolant, preventing the channels inside the first and second water-cooled heat dissipation jackets 21 and 24 from being blocked by impurities over a long period of use. At the same time, when the filter screen 34 blocks too many impurities and affects the flow of the cooling medium, the rotating screw 36 drives the slider 35 to move horizontally on the three-hole connector 31, causing the double-hole sliding pipe 33 to move horizontally within the three-hole connector 31, thus exchanging the two holes of the double-hole sliding pipe 33. During the process, the impurities remaining in the holes of the double-hole sliding pipe 33 are carried out along with it, and the holes with impurities move to the holes on both sides of the three-hole connector 31. The holes on both sides of the three-hole connector 31 are exposed to the outside, making it convenient to clean the holes in the double-hole sliding pipe 33 with impurities, facilitating the next switch.
[0029] The working principle of this utility model is as follows: During operation, the gap between the conductor rotor 12 and the permanent magnet rotor 11 is changed by the movement of an external motor. The smaller the gap, the stronger the magnetic field coupling, and the speed of the load-side carrier shaft 13 increases; conversely, it decreases, thus achieving stepless speed regulation. Simultaneously, a first water-cooled heat dissipation jacket 21 and a second water-cooled heat dissipation jacket 24 are respectively installed on the outer sides of the permanent magnet rotor 11 and the conductor rotor 12. Cooling water enters the pipes inside the first water-cooled heat dissipation jacket 21 and the second water-cooled heat dissipation jacket 24 for circulation, carrying away the heat generated during the rotation of the permanent magnet rotor 11 and the conductor rotor 12. The first water-cooled heat dissipation jacket 24 installed on the outer side of the moving conductor rotor 12... The sleeve 21 is linked to the connecting plate 16. The first water-cooled heat dissipation sleeve 21 can move synchronously with the conductor rotor 12, keeping the gap between it and the conductor rotor 12 unchanged and maintaining a stable heat exchange efficiency. When the flow rate of the cooling medium decreases, the rotating filter screen 34 drives the slider 35 and the double-hole sliding connecting pipe 33 to slide together, switching the hole of the double-hole sliding connecting pipe 33 and the quick-connect pipe 32 to be aligned. During the process, the impurities on the surface of the filter screen 34 and in the other hole of the double-hole sliding connecting pipe 33 can be moved to one side of the three-hole connector 31, exposing it to the outside for easy cleaning. The process can be completed without stopping the machine or with only a short stop, ensuring the long-term operation of the cooling system.
[0030] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A water-cooled permanent magnet speed controller, characterized in that: The device includes a housing (1), with a permanent magnet rotor (11) rotatably mounted at one end inside the housing (1). A carrier shaft (13) is fixed to one end of the permanent magnet rotor (11), and one end of the carrier shaft (13) passes through the housing (1) and is located outside the housing (1). A conductor rotor (12) is rotatably mounted at the other end inside the housing (1). A first water-cooled heat dissipation jacket (21) is provided on the outside of the conductor rotor (12), and one end of the first water-cooled heat dissipation jacket (21) is fixed. There is a first inlet pipe (22) and a first outlet pipe (23). One end of the first inlet pipe (22) and the first outlet pipe (23) passes through the housing (1) and is located outside the housing (1). The conductor rotor (12) is fixed with an output shaft (14) at the end away from the permanent magnet rotor (11). The output shaft (14), the first inlet pipe (22) and the first outlet pipe (23) are connected by a connecting plate (16). The output shaft (14) and the connecting plate (16) are rotatably connected.
2. The water-cooled permanent magnet speed controller according to claim 1, characterized in that: The housing (1) is also equipped with a second water-cooled heat dissipation jacket (24). The second water-cooled heat dissipation jacket (24) is located on the outside of the permanent magnet rotor (11). One end of the second water-cooled heat dissipation jacket (24) is fixed with a second water inlet pipe (25) and a second water outlet pipe (26). One end of the second water inlet pipe (25) and the second water outlet pipe (26) passes through the housing (1) and is located outside the housing (1).
3. A water-cooled permanent magnet speed controller according to claim 2, characterized in that: One end of the first water inlet pipe (22), the first water outlet pipe (23), the second water inlet pipe (25) and the second water outlet pipe (26) is provided with a filter interface (3). The filter interface (3) includes a three-hole connector (31). A quick-connect pipe (32) is fixed in the middle of one end of the three-hole connector (31). A double-hole sliding connecting pipe (33) is slidably installed inside the three-hole connector (31).
4. A water-cooled permanent magnet speed controller according to claim 3, characterized in that: The top of the three-hole connector (31) is provided with a sliding groove, and the top of the double-hole sliding connecting pipe (33) is fixed with a slider (35). The slider (35) is located inside the sliding groove. The top of the three-hole connector (31) is rotatably connected with a screw (36), and the screw (36) is threadedly connected to the slider (35).
5. A water-cooled permanent magnet speed controller according to claim 4, characterized in that: A filter screen (34) is fixed in the middle of one end of the three-hole connector (31).
6. A water-cooled permanent magnet speed controller according to claim 1, characterized in that: A bearing (15) is installed at one end of the output shaft (14) and at the connection point with the combined plate (16).