A water-cooled speed regulator

Abstract

The utility model discloses a prevent water -cooling heat dissipation type speed regulator of leakage, including outer casing, stabilizing mechanism, speed regulator, baffle mechanism and water spraying mechanism, stabilizing mechanism sets up at the top of outer casing, and the upper portion of stabilizing mechanism sets up water collecting tray, and speed regulator and baffle mechanism set up in the inner chamber of outer casing, and the two settings of speed regulator are connected coupling, and the coupling projects outer casing, and the water ring is set up on the coupling, and baffle mechanism is located in the upper space of speed regulator, and water spraying mechanism sets up at the lower part of outer casing, advantage: baffle mechanism from the top of speed regulator, and the cooling water of high -speed rotation is stopped, can prevent cooling water overflow also can guide to cooling water, and make cooling water fall from both sides, and will not fall on the surface of speed regulator again, the water ring on the coupling can reduce the probability that cooling water passes through the gap of rotation cooperation and overflows, and the water collecting tray can receive the water drop of stabilizing mechanism place and produce because of hot gas condensation.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet speed controller technology, specifically a water-cooled speed controller that prevents leakage. Background Technology

[0002] Permanent magnet speed controllers transmit torque through electromagnetic induction, and the speed at the load end can be adjusted by changing the air gap between the conductor rotor and the permanent magnet rotor. During operation, both the conductor rotor and the permanent magnet rotor rotate at high speeds, generating a significant amount of heat. If this heat is not dissipated promptly, the magnets in the permanent magnet rotor may demagnetize due to the high temperature. Water-cooled spray cooling is an efficient heat dissipation method that keeps the motor temperature within a relatively stable and controllable range. Water cooling typically occurs within a cooling chamber, which is not completely sealed. Therefore, when cooling water overflows or leaks through gaps and spills onto the casing surface, it can cause corrosion and lead to a product quality issue—water leakage. This negatively impacts customer satisfaction and reduces their willingness to purchase the product. Utility Model Content

[0003] The technical problem this utility model aims to solve is that existing spray cooling speed controllers suffer from water leakage or outflow at gaps, which accumulates on the surface of the device's outer casing. This leakage can negatively impact product lifespan and customer satisfaction over time. To address this problem, a water-cooled speed controller designed to prevent leakage is proposed. This controller includes an outer casing, a pressure stabilizing mechanism, a speed controller, a baffle mechanism, and a water spraying mechanism. The pressure stabilizing mechanism is located at the top of the outer casing, with a water collection tray above it. The speed controller and baffle mechanism are located within the inner cavity of the outer casing. The speed controller has two couplings extending out of the outer casing, each with a water-blocking ring. The baffle mechanism is positioned above the speed controller, and the water spraying mechanism is located at the bottom of the outer casing.

[0004] The technical solution of this utility model, by setting a baffle mechanism, can block the cooling water carried by the speed regulator when it rotates at high speed from above, which can not only prevent the cooling water from overflowing and falling on the surface of the outer shell, but also guide the cooling water to fall from both sides and not fall on the surface of the speed regulator again; by setting a water blocking ring on the coupling, the probability of cooling water overflowing through the gap of the rotating fit can be reduced; by setting a water collecting plate structure, water droplets generated by the condensation of hot air at the pressure stabilizing mechanism can be collected and returned to the inside of the outer shell, avoiding direct dripping onto the surface of the outer shell.

[0005] In a preferred embodiment of the present invention, the outer shell includes an upper shell and a lower shell, which are connected by bolts. A sealing ring is provided between the upper shell and the lower shell to improve the tightness of the seal and prevent cooling water from overflowing.

[0006] In a preferred embodiment of the present invention, the front surfaces of both the upper and lower housings are provided with forward convex cavities, and the rear surfaces of both the upper and lower housings are provided with rear convex cavities. The two forward convex cavities and the two rear convex cavities fit together to form a complete chamber. The two couplings extend from the middle of the two complete chambers, respectively. The forward and rear convex cavities are used to pass through the couplings and are positioned to cooperate with the water-blocking ring to reduce cooling water overflow.

[0007] In a preferred embodiment of the present invention, a speed sensor is provided at the top of the front convex cavity of the upper housing; drainage holes are provided at the bottom of both the front and rear convex cavities of the lower housing, and the drainage holes are connected to elbows. The elbows extend into the interior of the lower housing. The speed sensor is used to measure the rotational speed of the permanent magnet rotor. The drainage holes facilitate the discharge of incoming cooling water. The elbows can change direction to prevent water inside the housing from directly entering the front and rear convex cavities through the pipes and drainage holes.

[0008] In a preferred embodiment of the present invention, the pressure stabilizing mechanism includes a vent pipe, a cooling pipe, and an air filter. One end of the vent pipe is connected to the outer casing, and the other end is connected to the air filter. The cooling pipe is connected to the lower part of the vent pipe, and a cooling pipe valve is provided on the vent pipe. The water collection tray is located on the upper periphery of the vent pipe, below the air filter. The air filter is used for filtration to prevent dust from entering the heat dissipation cavity. Cooling water is injected into the cooling pipe through a flexible hose to reduce the temperature and reduce evaporation. The water collection tray is used to collect water droplets generated by the condensation of water vapor.

[0009] In a preferred embodiment of the present invention, the speed regulator includes a conductor rotor and a permanent magnet rotor, which are coupled together. The coupling is connected to the end faces of the conductor rotor and the permanent magnet rotor via a flange. The outer diameter of the water-blocking ring on the conductor rotor is the same as the opening diameter of the inner wall of the rear convex cavity. The outer diameter of the water-blocking ring on the permanent magnet rotor is larger than the opening diameter of the inner wall of the front convex cavity, and the water-blocking ring on the permanent magnet rotor is located on both sides of the inner wall of the front convex cavity. Since the conductor rotor needs to move to adjust the air gap, the water-blocking ring of the conductor rotor can be displaced within the rear convex cavity, while the permanent magnet rotor does not need to be displaced. The water-blocking ring is used to prevent cooling water from entering the front convex cavity.

[0010] In a preferred embodiment of the present invention, a counterweight is provided on the end face edge of the conductor rotor. The counterweight protrudes from the side wall of the conductor rotor. The counterweight is used to maintain the balance during rotation and to avoid imbalance causing swaying. The counterweight also blocks the cooling water, reducing the probability of the cooling water flowing to the rear.

[0011] In a preferred embodiment of the present invention, a water inlet recess is provided on the inner side wall of the permanent magnet rotor. The water inlet recess is connected to a small hole on the end face of the permanent magnet rotor. Cold water can pass through the water inlet recess and then flow out through the small hole, thereby increasing the contact area and improving the heat dissipation efficiency.

[0012] In a preferred embodiment of the present invention, the baffle mechanism includes a main partition, a partition plate, a baffle, and a stiffener. There are two main partitions, which are respectively disposed within the upper and lower housings. The main partitions are opposite to the end faces of the conductor rotor. The partition plates are located on both sides of the main partitions and above the conductor rotor. The baffle is arc-shaped and positioned between the main partitions and the partition plates. The main partitions, partition plates, and baffles are connected by vertical stiffeners. A water-blocking ring is provided on the upper part of the baffle. The main partitions separate the front and rear sections, reducing the probability of cooling water overflowing from the gap at the rear coupling. The partition plates further block the water flow. The baffles block and guide the cooling water, causing it to fall from both sides. The stiffeners connect other structures and are connected to the outer casing. The water-blocking ring prevents water from returning along its original path and falling vertically.

[0013] In a preferred embodiment of the present invention, the water spraying mechanism includes an inlet pipe, a branch pipe, a drain pipe, and a diversion pipe. The inlet pipe is connected to the branch pipe, and both the inlet pipe and the branch pipe are connected to the outer casing and extend into the inner cavity of the outer casing. The drain pipe is located at the lower part of the outer casing. The diversion pipe is connected to the inlet pipe and is equipped with a valve. A thermometer is installed on the drain pipe. The inlet pipe and the branch pipe are both facing the speed controller and are located at different positions. When spraying for heat dissipation, they can basically cover all areas of the speed controller. The drain pipe is used to discharge cooling water, and the thermometer is used to measure the water temperature. When the temperature is too high, the machine needs to be stopped for inspection. The diversion pipe is connected to the pressure stabilizing mechanism through a flexible hose. The water sprays downwards to dissipate heat, which can reduce the internal temperature and reduce the evaporation of water vapor.

[0014] The advantages of this utility model compared with the prior art are: The technical solution of this utility model, by setting a baffle mechanism, can block the cooling water carried by the speed regulator when it rotates at high speed from above, which can not only prevent the cooling water from overflowing and falling on the surface of the outer shell, but also guide the cooling water to fall from both sides and not fall on the surface of the speed regulator again; by setting a water blocking ring on the coupling, the probability of cooling water overflowing through the gap of the rotating fit can be reduced; by setting a water collecting plate structure, water droplets generated by the condensation of hot air at the pressure stabilizing mechanism can be collected and returned to the inside of the outer shell, avoiding direct dripping onto the surface of the outer shell. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the cooperation between the baffle mechanism and the speed regulator in this utility model; Figure 3 This is a three-dimensional schematic diagram of the outer shell and the water spraying mechanism in this utility model; Figure 4 This is an enlarged schematic diagram of the lower shell and water spraying mechanism in this utility model; Figure 5 This is a three-dimensional schematic diagram of the voltage stabilizing mechanism in this utility model; Figure 6 This is a three-dimensional schematic diagram of the speed regulator in this utility model; Figure 7 This is a three-dimensional schematic diagram of the baffle mechanism of this utility model. The components are: 1-outer shell, 11-upper shell, 12-lower shell, 13-sealing ring, 14-front convex cavity, 15-rear convex cavity, 16-drain hole, 17-elbow, 2-pressure stabilizing mechanism, 21-lower pipe, 22-valve, 23-flange, 24-upper pipe, 25-water collection tray, 26-air filter element, 3-speed controller, 31-conductor rotor, 32-permanent magnet rotor, 33-coupling, 34-water blocking ring, 35-water inlet recess, 36-counterweight block, 4-baffle mechanism, 41-main partition, 42-partition plate, 43-baffle, 44-rib plate, 45-water blocking ring, 5-water spraying mechanism, 51-water inlet pipe, 52-branch pipe, 53-drain pipe, 54-diverter pipe, 6-speed sensor, 7-thermometer. Detailed Implementation

[0016] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model will be described in detail below. Example 1

[0017] like Figure 1-7 As shown, this utility model is a water-cooled speed regulator that prevents leakage, including a housing 1, a voltage stabilizing mechanism 2, a speed regulator 3, a baffle mechanism 4, and a water spraying mechanism 5.

[0018] The speed controller 3 is installed inside the housing 1. The speed controller includes a conductor rotor 31 and a permanent magnet rotor 32, which are coupled together.

[0019] The end faces of the conductor rotor 31 and the permanent magnet rotor 32 are fixed to the coupling 33 by flanges. The coupling 33 extends out of the outer shell 1 and is connected to the motor shaft and the load shaft. The coupling 33 is cylindrical, which facilitates rotation. A water-blocking ring 34 is fixedly installed on the coupling 33 to block the cooling water and reduce the leakage of cooling water from the gaps in the coupling 33 during rotation.

[0020] The outer casing 1 includes an upper casing 11 and a lower casing 12. The upper casing 11 and the lower casing 12 are fitted together and fixedly connected by multiple bolts. A mounting groove is opened between the upper casing 11 and the lower casing 12, and a sealing ring 13 is placed in the mounting groove to improve the tightness of the seal and reduce the leakage of cooling water.

[0021] The front surfaces of the upper housing 11 and the lower housing 12 are provided with forward convex cavities 14. The cross-section of the two forward convex cavities 14 is semi-circular. The two forward convex cavities 14 are symmetrical and form a complete cylindrical chamber after being fitted together. Circular holes are opened at the center of the front and rear end faces of the complete chamber, and the circular holes on the two end faces are of the same specification. In actual production, the circular holes are formed by combining two semi-circles.

[0022] The circular hole of the front cavity 14 is connected to the permanent magnet rotor 32 via a coupling 33, which is used to transmit torque to the load shaft, thereby driving the load end to rotate. The permanent magnet rotor 32 does not require displacement adjustment, so the water blocking ring 34 is located on both sides of the inner wall of the front cavity 14, which is equivalent to two water blocking rings 14 clamping the inner wall, which can reduce the leakage of cooling water.

[0023] Both the upper housing 11 and the lower housing 12 have rear convex cavities 15 on their rear surfaces. The cross-sections of the two rear convex cavities 15 are also semi-circular. The two rear convex cavities 15 are symmetrical and, when fitted together, form a complete cylindrical chamber. Circular holes are opened at the center of the front and rear end faces of the complete chamber, and the diameter of the circular hole on the inner end face is larger than that on the outer end face.

[0024] The circular hole of the rear convex cavity 15 is connected to another coupling 33, which is connected to the conductor rotor 31 and used to connect the motor shaft of the motor. When the speed controller adjusts the air gap, the conductor rotor 31 needs to be displaced. Therefore, the water-blocking ring 34 on the conductor rotor 31 is slightly smaller than the diameter of the circular hole on the inner wall of the complete cavity. Thus, the water-blocking ring 34 can be displaced without obstruction. The number of water-blocking rings 34 in this part is set to be multiple. Even if it is arbitrarily adjusted, a part of the water-blocking ring 34 is always located outside the rear convex cavity 15 and inside the outer shell 1. Therefore, the leakage of cooling water from the gap of the coupling 33 can be reduced.

[0025] Among them, a speed sensor 6 is installed on the top of the front cavity 14 of the upper housing 11. The speed sensor 6 is a photoelectric sensor. By identifying the reflector on the coupling 33, the light source is periodically reflected. The photoelectric receiver converts the light signal into a pulse electrical signal. The pulse frequency is proportional to the rotation speed, so the specific rotation speed can be obtained. The above belongs to the existing conventional technology.

[0026] Drainage holes 16 are provided at the bottom of the front cavity 14 and the rear cavity 15 of the lower housing 12 to drain the cooling water that seeps in. The drainage holes 16 are connected to elbows 17, which extend into the lower housing 12. The elbows 17 can change the direction of water flow, so when the cooling water inside the housing splashes, it is not easy for it to flow back into the front cavity 14 and the rear cavity 15 through the elbows 17.

[0027] Openings are also made on the surfaces where the front convex cavity 14 and the rear convex cavity 15 fit together, so that cooling water can flow down and enter the front convex cavity 14 and the rear convex cavity 15, or directly enter the lower housing 12, to avoid cooling water accumulating here and thus reduce the probability of leakage.

[0028] The pressure stabilizing mechanism 2 includes a vent pipe 21, a cooling pipe, and an air filter element 23.

[0029] One end of the vent pipe 21 is connected to the outer casing 1, and the other end of the vent pipe 21 is connected to the air filter element 23. The air filter element 23 is an existing product. The air filter element 23 can adjust the air pressure inside the outer casing 1 to keep it the same as the atmospheric pressure, and at the same time prevent dust from entering.

[0030] A water collection tray 24 is fixedly installed on the outer surface of the vent pipe 21. The water collection tray 24 is located below the air filter element 23. Some of the water droplets formed by the evaporation and condensation of water vapor will be completely collected by the water collection tray 24. The water droplets collected on the water collection tray 24 will eventually flow back into the outer shell 1.

[0031] Meanwhile, in order to reduce evaporation, a cooling pipe is connected to the lower part of the vent pipe 21. A cooling pipe valve 22 is installed on the vent pipe 21. The cooling pipe is connected to cooling water through a hose for spraying, which lowers the temperature and reduces evaporation. At the same time, the cooling water from top to bottom can also cool the inner cavity of the outer shell 1.

[0032] Furthermore, the vent pipe 21 can have a small diameter at the bottom and a large diameter at the top. The part connected to the outer shell 1 has a small diameter, which can reduce the amount of evaporation. At the same time, the small diameter also facilitates the cooling pipe to spray heat dissipation, which can further reduce the amount of evaporation.

[0033] The baffle mechanism 4 includes a main partition 41, a partition plate 42, a baffle 43, and a stiffening plate 44.

[0034] There are two main partitions 41, which are respectively installed in the upper housing 11 and the lower housing 12. The main partition 41 in the lower housing 12 is an integral structure. The speed controller 3 is located between the main partition 41 and the front cavity 14. The main partition 41 in the upper housing 11 and the main partition 41 in the lower housing 12 are located on the same plane.

[0035] Two main partition plates 41 are symmetrically attached to each other to form a whole plate. A circular opening is set in the middle of the whole plate. The diameter of the circular opening is slightly smaller than the diameter of the conductor rotor 31 of the speed regulator 3. The speed regulator 3 is always on one side of the main partition plate 41.

[0036] The end face edge of the conductor rotor 31 is connected by a screw counterweight 36. The counterweight 36 is used to achieve dynamic balance and protrudes from the side wall of the conductor rotor 31, thus also acting as a barrier to prevent cooling water from splashing into the rear.

[0037] Multiple sets of annularly distributed screws are fixed on the side wall of the conductor rotor 31. The screws can divide the side wall surface of the conductor rotor 31, separating the cooling water carried up, preventing accumulation, and reducing leakage.

[0038] The partition plate 42 and the baffle plate 43 are located above the speed controller 3. The partition plate 42 is located on the front and rear sides of the main partition plate 41 inside the upper housing 11, and the baffle plate 43 is located between the partition plate 42 and the main partition plate 41. The baffle plate 43 is arc-shaped with an arch in the middle to guide the cooling water to fall from a lower position.

[0039] The baffle 43 and the partition plate 42 are welded and fixed, with a certain gap between them and the main partition plate 41. Then, the baffle 43 is connected to the main partition plate 41 by multiple vertical stiffeners 44.

[0040] A portion of the cooling water can pass through the gap between the baffle 43 and the main baffle 41. Above the baffle, a water-blocking ring 45 is formed on the side near the main baffle 41. The water-blocking ring 45 can block the cooling water, so that it can only slide down from the upper surface of the baffle 45 to the lower points on both sides.

[0041] The water spraying mechanism 5 includes an inlet pipe 51, a branch pipe 52, a drain pipe 53, and a diversion pipe 54.

[0042] The water inlet pipe 51 is connected to an external water source. The middle of the water inlet pipe 51 is connected to the lower housing 12, allowing cooling water to be sprayed directly into the interior of the outer housing 1. This point corresponds to the air gap of the speed controller 3.

[0043] The water inlet pipe 51 is connected to multiple branch pipes 52, and the branch pipes 52 are connected to the lower housing 12. The branch pipes 52 can also be used for spray cooling. The branch pipes 52 are symmetrically distributed on the surface of the lower housing 12, and each set of symmetrical points corresponds to different positions of the speed controller 3, so as to facilitate comprehensive spray cooling.

[0044] The drain pipe 53 is installed at the lower part of the outer casing 1 to drain cooling water. A thermometer 7 is installed on the drain pipe 53 to measure the temperature of the cooling water. If the temperature is too high, the machine needs to be stopped for inspection. The thermometer 7 is existing technology.

[0045] The diversion pipe 54 is connected to the inlet pipe 51, and a valve is installed on the diversion pipe 54. The diversion pipe 54 is connected to the cooling pipe of the pressure stabilizing mechanism 2 through a flexible hose.

[0046] A water inlet recess 35 is provided on the inner side wall of the permanent magnet rotor 32. The water inlet recess 35 is connected to a small hole on the end face of the permanent magnet rotor 32. When spraying for heat dissipation, cooling water can enter the water inlet recess 35 and then flow out of the small hole, thereby improving the heat dissipation efficiency.

[0047] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. A water-cooled speed controller with leak-proof properties, characterized in that: It includes an outer shell (1), a pressure stabilizing mechanism (2), a speed regulator (3), a baffle mechanism (4), and a water spraying mechanism (5). The pressure stabilizing mechanism (2) is located on the top of the outer shell (1), and a water collection plate (25) is set on the upper part of the pressure stabilizing mechanism (2). The speed regulator (3) and the baffle mechanism (4) are located in the inner cavity of the outer shell (1). The two sides of the speed regulator (3) are equipped with couplings (33), which extend out of the outer shell (1). A water blocking ring (34) is set on the coupling (33). The baffle mechanism (4) is located above the speed regulator (3). The water spraying mechanism (5) is located at the lower part of the outer shell (1).

2. The water-cooled speed controller for preventing leakage according to claim 1, characterized in that: The outer shell (1) includes an upper shell (11) and a lower shell (12), which are connected by bolts, and a sealing ring (13) is provided between the upper shell (11) and the lower shell (12).

3. A water-cooled speed controller for preventing leakage according to claim 2, characterized in that: The front surfaces of the upper housing (11) and the lower housing (12) are provided with forward convex cavities (14), and the rear surfaces of the upper housing (11) and the lower housing (12) are provided with rear convex cavities (15). The two forward convex cavities (14) and the two rear convex cavities (15) fit together to form a complete chamber. The two couplings (33) extend from the middle of the two complete chambers.

4. A water-cooled speed controller for preventing leakage according to claim 3, characterized in that: A speed sensor (6) is provided on the top of the front cavity (14) of the upper housing (11); a drain hole (16) is provided at the bottom of the front cavity (14) and the rear cavity (15) of the lower housing (12). The drain hole (16) is connected to the elbow (17), and the elbow (17) extends into the interior of the lower housing (12).

5. A water-cooled speed controller for preventing leakage according to claim 1, characterized in that: The pressure stabilizing mechanism (2) includes a vent pipe (21), a cooling pipe, and an air filter (23). One end of the vent pipe (21) is connected to the outer shell (1), and the other end of the vent pipe (21) is connected to the air filter (23). The cooling pipe is connected to the lower part of the vent pipe (21). A cooling pipe valve (22) is provided on the vent pipe (21). The water collection tray (24) is located on the upper periphery of the vent pipe (21) and is located below the air filter (23).

6. A water-cooled speed regulator for preventing leakage according to claim 4, characterized in that: The speed regulator includes a conductor rotor (31) and a permanent magnet rotor (32), which are coupled together. The coupling (33) is connected to the end faces of the conductor rotor (31) and the permanent magnet rotor (32) through a flange. The outer diameter of the water-blocking ring (34) on the conductor rotor (31) is the same as the opening diameter of the inner wall of the rear convex cavity (15). The outer diameter of the water-blocking ring (34) on the permanent magnet rotor (32) is larger than the opening diameter of the inner wall of the front convex cavity (14), and the water-blocking ring (34) on the permanent magnet rotor (32) is located on both sides of the inner wall of the front convex cavity (14).

7. A water-cooled speed regulator for preventing leakage according to claim 6, characterized in that: A counterweight (36) is provided on the edge of the end face of the conductor rotor (31), and the counterweight (36) protrudes from the side wall of the conductor rotor (31).

8. A water-cooled speed regulator for preventing leakage according to claim 6, characterized in that: The inner wall of the permanent magnet rotor (32) is provided with a water inlet hole (35), which is connected to a small hole on the end face of the permanent magnet rotor (32).

9. A water-cooled speed regulator for preventing leakage according to claim 6, characterized in that: The baffle mechanism (4) includes a main partition (41), a partition plate (42), a baffle (43), and a stiffener (44). There are two main partitions (41), which are respectively installed in the upper shell (11) and the lower shell (12). The main partition (41) is opposite to the end face of the conductor rotor (31). The partition plate (42) is located on both sides of the main partition (41) and above the conductor rotor (31). The baffle (43) is arc-shaped and is installed between the main partition (41) and the partition plate (42). The main partition (41), the partition plate (42), and the baffle (43) are connected by a vertical stiffener (44). A water-blocking ring (45) is provided on the upper part of the baffle (43).

10. A water-cooled speed controller for preventing leakage according to claim 1, characterized in that: The water spraying mechanism (5) includes an inlet pipe (51), a branch pipe (52), a drain pipe (53), and a diversion pipe (54). The inlet pipe (51) is connected to the branch pipe (52). Both the inlet pipe (51) and the branch pipe (52) are connected to the outer shell (1) and extend into the inner cavity of the outer shell (1). The drain pipe (53) is located at the lower part of the outer shell (1). The diversion pipe (54) is connected to the inlet pipe (51) and a valve is installed on the diversion pipe (54). A thermometer (7) is installed on the drain pipe (53).

Images