Rotor water cooling mechanism

Abstract

The utility model relates to rotor cooling technical field, proposed rotor water cooling mechanism, rotor includes rotor transmission cover, support and winding, support sets up on rotor transmission cover, winding sets up on the support, and the rotor transmission cover sets up on the output cover, and the water cooling mechanism includes: the connecting head sets up in the output cover one end, and the connecting head has the water pass hole, water jacket sets up on the support, and is located between the support and winding, and the water jacket inside has the cooling space, and the cooling space is connected with the water pass hole, and the cooling space is used for cooling liquid to pass or store cooling liquid, through above-mentioned technical scheme, solved the problem that rotor cooling effect is poor in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of rotor cooling technology, specifically to a rotor water cooling mechanism. Background Technology

[0002] Electric motors, generators, and other power machinery contain rotors that rotate at high speeds, generating significant heat. Current technology commonly uses air cooling, where a fan is mounted on the motor or engine and rotates with the rotor to cool it. However, this method is relatively inefficient and ineffective. While water cooling can be used to cool the entire motor or generator, it doesn't specifically target the rotor. Although water cooling is more efficient, it's not particularly effective for cooling the rotor. Utility Model Content

[0003] This invention proposes a rotor water-cooling mechanism, which solves the problem of poor rotor cooling effect in related technologies.

[0004] The technical solution of this utility model is as follows:

[0005] A rotor water-cooling mechanism, wherein the rotor includes a rotor drive sleeve, a support, and windings, the support is disposed on the rotor drive sleeve, the windings are disposed on the support, and the rotor drive sleeve is sleeved on an output sleeve. The water-cooling mechanism includes:

[0006] A connector is provided at one end of the output sleeve, and the connector has a water passage hole.

[0007] A water jacket is mounted on the support and located between the support and the winding. The water jacket has a cooling space inside, which is connected to the water passage hole. The cooling space is used for the passage or storage of coolant.

[0008] Optionally, the output sleeve has an output end and a non-output end, the connector is located on the non-output end side, and further includes:

[0009] The rotor drive sleeve and the output sleeve are connected by the connector, and the connector head is disposed on the output sleeve by the connector.

[0010] Optionally, the water jacket is annular in shape and is fitted onto the bracket, with the water jacket in contact with the winding.

[0011] Optionally, the water passage is divided into an inlet and an outlet, both of which are connected to the cooling space.

[0012] Optionally, the cooling space has an inlet and an outlet, the inlet being connected to the water inlet hole and the outlet being connected to the water outlet hole, and the inlet and the outlet being symmetrically arranged inside the water jacket.

[0013] Optionally, the connector includes:

[0014] A connecting shaft is disposed on the connecting member, and the water inlet and water outlet are located on the connecting shaft;

[0015] A rotating sleeve is mounted on the connecting shaft. The rotating sleeve has an inlet and an outlet. The inlet is connected to the inlet hole, and the outlet is connected to the outlet hole. When the connecting shaft rotates, the positions of the inlet and outlet do not change.

[0016] Optionally, the rotating sleeve includes:

[0017] A bearing is mounted on the connecting shaft;

[0018] The outer casing is disposed on the outer ring of the bearing and is rotatably disposed relative to the connecting shaft. At least two non-communicating water storage spaces are formed between the outer casing and the connecting shaft. The water inlet and the water outlet are located on the outer casing, and the water storage spaces are respectively used to connect the water inlet and the water inlet hole, and the water outlet and the water outlet hole.

[0019] Optional, also includes:

[0020] A sealing ring is disposed between the housing and the connecting shaft to seal the gap between the housing and the connecting shaft.

[0021] Optionally, the housing also has a detection port located between the sealing ring and the bearing, used to detect whether the sealing ring leaks water.

[0022] Optionally, there are multiple inlets and outlets, spaced apart on the outer casing.

[0023] The working principle and beneficial effects of this utility model are as follows:

[0024] In this invention, the rotor is a conventional rotor with a water-cooling structure on the output sleeve. Since the main heat-generating component of the rotor is the winding, a water jacket is installed between the support and the winding. The water jacket is connected to a water passage hole on the connector. Coolant is supplied to the connector, entering the cooling space of the water jacket. The coolant cools the winding and support through heat transfer, resulting in good cooling performance. The water jacket rotates with the rotor. While the connection method and structure are relatively simple, it allows for direct water cooling of the rotor, resulting in high cooling efficiency. Attached Figure Description

[0025] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the rotor drive, support, and water jacket of this utility model;

[0028] Figure 3 This is a sectional view of the connecting shaft and rotating sleeve of this utility model;

[0029] Figure 4 This is a sectional view of the connector and output sleeve of this utility model;

[0030] In the diagram: 1. Rotor drive sleeve, 2. Bracket, 3. Winding, 4. Connecting shaft, 5. Water passage hole, 6. Water jacket, 7. Cooling space, 501. Water inlet, 502. Water outlet, 701. Inlet, 702. Outlet, 8. Rotating sleeve, 801. Bearing, 802. Housing, 803. Water storage space, 804. Detection port, 805. Sealing ring, 806. Water inlet, 807. Water outlet, 9. Output sleeve, 10. Connector, 1001. Outer ring of ball cage, 1002. Inner ring of star shape. Detailed Implementation

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0032] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0033] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Reference Figures 1-4 A rotor water-cooling mechanism is proposed. The rotor includes a rotor drive sleeve 1, a support 2, and a winding 3. The support 2 is mounted on the rotor drive sleeve 1, and the winding 3 is mounted on the support 2. The rotor drive sleeve 1 is mounted on the output sleeve 9. The water-cooling mechanism includes: a connector mounted at one end of the output sleeve 9, with a water passage hole 5 on the connector; and a water jacket 6 mounted on the support 2, located between the support 2 and the winding 3. The water jacket 6 has a cooling space 7 inside, which communicates with the water passage hole 5. The cooling space 7 is used for the passage or storage of coolant.

[0036] In this embodiment, the rotor is a conventional rotor, and a water-cooling structure is provided on the output sleeve 9. The main heat-generating component of the rotor is the winding 3, so a water jacket 6 is provided between the support 2 and the winding 3. The water jacket 6 is connected to the water passage hole 5 on the connector. By supplying coolant to the connector, the coolant enters the cooling space 7 of the water jacket 6. The coolant cools the winding 3 and the support 2 through heat transfer, resulting in better cooling effect. The water jacket 6 rotates together with the rotor and the output sleeve 9. The connection method and structure are relatively simple, but the rotor can be directly water-cooled, resulting in high cooling efficiency. Preferably, the rotor drive sleeve 1 has a water passage hole. The two openings of the water passage hole are located on the end face and side wall of the rotor drive sleeve 1, respectively. The water jacket 6 is connected to the opening on the side wall through a water pipe, and the water passage hole 5 is connected to the opening on the end face through a water pipe.

[0037] Furthermore, the output sleeve 9 has an output end and a non-output end, and the connector is located on the non-output end side. It also includes: the rotor drive sleeve 1 and the output sleeve 9 are connected by a connector 10, and the connector is disposed on the output sleeve 9 by the connector 10.

[0038] In this embodiment, the water-cooling mechanism is located on the non-output end side of the output sleeve 9 to avoid interfering with the output power of the rotor drive sleeve 1. The rotor drive sleeve 1, the output sleeve 9, and the connector are connected together by the connector 10 to achieve synchronous transmission. Preferably, the connector 10 is a ball cage coupling. The structure of the ball cage coupling is existing technology and will not be described in detail. The rotor drive sleeve 1 and the outer ring 1001 of the ball cage are fixedly connected, and the output sleeve 9 is fixedly connected to the star-shaped inner ring 1002. The rotor drive sleeve 1 drives the outer ring 1001 of the ball cage to rotate, and the outer ring 1001 of the ball cage drives the output sleeve 9 to rotate through the star-shaped inner ring 1002, thereby outputting power.

[0039] Furthermore, the water jacket 6 is ring-shaped and is fitted onto the bracket 2, with the water jacket 6 in contact with the winding 3.

[0040] In this embodiment, for better heat dissipation, the annular water jacket 6 can abut against the inner ring of the inner wall of the winding 3, and the contact heat dissipation effect is better. Preferably, the water jacket 6 is made of a material with high heat transfer efficiency, such as copper.

[0041] Furthermore, the water passage 5 is divided into a water inlet 501 and a water outlet 502, both of which are connected to the cooling space 7.

[0042] In this embodiment, the water passage 5 is divided into an inlet 501 and an outlet 502. The coolant enters the cooling space 7 through the inlet 501 and, after heat exchange, is discharged through the outlet 502. The water in the cooling space 7 circulates, preventing the coolant temperature from continuously rising and losing its cooling effect. Moreover, by using circulating coolant, the coolant temperature does not change too much, and the pressure in the cooling space 7 does not change significantly, thus preventing excessive pressure and leakage.

[0043] Furthermore, the cooling space 7 has an inlet 701 and an outlet 702. The inlet 701 is connected to the water inlet hole 501, and the outlet 702 is connected to the water outlet hole 502. The inlet 701 and the outlet 702 are symmetrically arranged inside the water jacket 6.

[0044] In this embodiment, the inlet 701 and outlet 702 of the cooling space 7 can be arranged in many ways. Placing the inlet 701 and outlet 702 inside the water jacket 6 and symmetrically arranged allows the outer side of the water jacket 6 to fully contact the winding 3, increasing the cooling effect. Furthermore, the inlet hole 501 and outlet hole 502 can be directly connected to the inlet 701 and outlet 702 via connecting pipes, facilitating assembly and disassembly. The symmetrical arrangement of the inlet 701 and outlet 702 facilitates the overall circulation of coolant within the cooling space 7.

[0045] Optionally, the connector includes: a connecting shaft 4 mounted on the connector 10, with an inlet hole 501 and an outlet hole 502 located on the connecting shaft 4; and a rotating sleeve 8 mounted on the connecting shaft 4, having an inlet 806 and an outlet 807, the inlet 806 communicating with the inlet hole 501 and the outlet 807 communicating with the outlet hole 502, the positions of the inlet 806 and the outlet 807 remaining unchanged when the connecting shaft 4 rotates. The rotating sleeve 8 includes: a bearing 801 mounted on the connecting shaft 4; and a housing 802 mounted on the outer ring of the bearing 801, the housing 802 rotatably mounted relative to the connecting shaft 4, forming a water storage space 803 between the housing 802 and the connecting shaft 4, the water storage space 803 communicating with the return water port, and a drain outlet located on the housing 802, the water storage space 803 communicating with the drain outlet.

[0046] In this embodiment, the connecting shaft 4 needs to rotate with the rotor transmission sleeve 1. The water inlet 501 and the water outlet 502 will also rotate with the connecting shaft 4. To facilitate water inlet and outlet, a rotating sleeve 8 is provided on the connecting shaft 4. The water inlet 806 on the rotating sleeve 8 is connected to the water inlet 501, and the water outlet 807 is connected to the water outlet 502. The rotating sleeve 8 includes a housing 802 and a bearing 801. The housing 802 is mounted on the connecting shaft 4 via the bearing 801. When the connecting shaft 4 rotates, the housing 802 does not need to rotate. The housing 802 can be mounted on the housing of a generator or motor (or connected to other stationary objects (the fixing method is not unique)). A water storage space 803 is formed between the housing 802 and the connecting shaft 4. Water flowing out of the water outlet 502 enters the water storage space 803 and then exits from the water outlet 807.

[0047] The detailed operating process is as follows: The cooling source is connected to the inlet 806, and then the coolant enters the cooling space 7 through the inlet hole 501. After heat exchange, the coolant flows through the outlet hole 502 and is discharged from the outlet 807. During operation, the connecting shaft 4 rotates, but the outer casing 802 remains stationary, so the positions of the inlet 806 and the outlet 807 do not change. The connecting shaft 4 and the rotating sleeve 8 form a structure similar to a rotary joint, which allows for coolant circulation without affecting the rotor rotation.

[0048] Preferably, the connecting shaft 4 is mounted on the connecting disc 401, which is mounted on the spherical outer ring 1001. The connecting disc 401 and the rotor drive sleeve 1 are located on opposite sides of the spherical outer ring 1001. The connecting disc 401 acts as an intermediate transition connector, connecting the connecting shaft 4 to the spherical outer ring 1001. Other connection methods can also be used, as long as the connecting shaft 4 is fixedly connected to the spherical outer ring 1001.

[0049] Furthermore, it also includes: a sealing ring 805 disposed between the housing 802 and the connecting shaft 4, for sealing the gap between the housing 802 and the connecting shaft 4.

[0050] In this embodiment, in order to prevent coolant leakage, a sealing ring 805 is provided between the outer casing 802 and the connecting shaft 4. The sealing ring 805 is an existing rotary seal, which can achieve sealing while rotating between the outer casing 802 and the connecting shaft 4.

[0051] Furthermore, the outer casing 802 also has a detection port 804 located between the sealing ring 805 and the bearing 801, which is used to detect whether the sealing ring 805 is leaking water.

[0052] In this embodiment, the sealing ring 805 may wear or break after a long period of time, resulting in a reduced sealing effect. If leakage occurs, coolant will flow out from the detection port 804, and the inspector will know that the rotating sleeve 8 has leaked and needs repair. Setting up the detection port 804 improves detection efficiency (equivalent to real-time detection) and eliminates the need for disassembly for inspection, reducing the difficulty of inspection.

[0053] Furthermore, there are several inlets 806 and outlets 807, which are spaced apart on the outer casing 802.

[0054] In this embodiment, in order to ensure the water inlet and outlet effect, the outer shell 802 has multiple water inlets 806 and water outlets 807, which can connect multiple water inlet pipes at the same time to increase the water inlet volume and water inlet pressure. Multiple water outlets 807 can prevent clogging.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rotor water-cooling mechanism, wherein the rotor includes a rotor drive sleeve (1), a bracket (2), and a winding (3), the bracket (2) being disposed on the rotor drive sleeve (1), the winding (3) being disposed on the bracket (2), and the rotor drive sleeve (1) being sleeved on an output sleeve (9), characterized in that, The water cooling mechanism includes: A connector is provided at one end of the output sleeve (9), and the connector has a water passage hole (5); A water jacket (6) is disposed on the bracket (2) and located between the bracket (2) and the winding (3). The water jacket (6) has a cooling space (7) inside, which is connected to the water passage hole (5). The cooling space (7) is used for the passage or storage of coolant.

2. The rotor water-cooling mechanism according to claim 1, characterized in that, The output sleeve (9) has an output end and a non-output end, the connector is located on the side of the non-output end, and further includes: The rotor drive sleeve (1) and the output sleeve (9) are connected by the connector (10), and the connector head is set on the output sleeve (9) by the connector (10).

3. The rotor water-cooling mechanism according to claim 1, characterized in that, The water jacket (6) is in the shape of a ring and is fitted on the bracket (2). The water jacket (6) is in contact with the winding (3).

4. The rotor water-cooling mechanism according to claim 2, characterized in that, The water passage (5) is divided into an inlet (501) and an outlet (502), and both the inlet (501) and the outlet (502) are connected to the cooling space (7).

5. The rotor water-cooling mechanism according to claim 4, characterized in that, The cooling space (7) has an inlet (701) and an outlet (702). The inlet (701) is connected to the water inlet hole (501), and the outlet (702) is connected to the water outlet hole (502). The inlet (701) and the outlet (702) are symmetrically arranged inside the water jacket (6).

6. The rotor water-cooling mechanism according to claim 4, characterized in that, The connector includes: A connecting shaft (4) is provided on the connecting member (10), and the water inlet (501) and the water outlet (502) are located on the connecting shaft (4); A rotating sleeve (8) is mounted on the connecting shaft (4). The rotating sleeve (8) has an inlet (806) and an outlet (807). The inlet (806) is connected to the inlet hole (501), and the outlet (807) is connected to the outlet hole (502). When the connecting shaft (4) rotates, the positions of the inlet (806) and the outlet (807) do not change.

7. The rotor water-cooling mechanism according to claim 6, characterized in that, The rotating sleeve (8) includes: A bearing (801) is disposed on the connecting shaft (4); The outer casing (802) is disposed on the outer ring of the bearing (801). The outer casing (802) is rotatably disposed relative to the connecting shaft (4). At least two non-communicating water storage spaces (803) are formed between the outer casing (802) and the connecting shaft (4). The inlet (806) and the outlet (807) are located on the outer casing (802). The water storage spaces (803) are respectively used to connect the inlet (806) and the inlet hole (501), and the outlet (807) and the outlet hole (502).

8. The rotor water-cooling mechanism according to claim 7, characterized in that, Also includes: A sealing ring (805) is disposed between the housing (802) and the connecting shaft (4) to seal the gap between the housing (802) and the connecting shaft (4).

9. The rotor water-cooling mechanism according to claim 8, characterized in that, The outer casing (802) also has a detection port (805) located between the sealing ring (805) and the bearing (801) for detecting whether the sealing ring (805) is leaking water.

10. The rotor water-cooling mechanism according to claim 7, characterized in that, Both the inlet (806) and the outlet (807) are provided in multiples, spaced apart on the outer casing (802).

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