A high speed motor and apparatus

Abstract

This utility model discloses a high-speed motor and device, relating to the field of motor structure technology. The high-speed motor includes: a frame, which is a tubular structure, with a first flow channel parallel to its central axis; a bearing, located on the central axis of the frame; an end cover, located at the first end of the frame, with a second flow channel perpendicular to the first flow channel, the second flow channel communicating with the first flow channel and facing the bearing; a volute, located at the second end of the frame, with a vent communicating with the first flow channel; and a cooling impeller, located at the first end of the frame and used to blow cooling air to the bearing. The high-speed motor and device provided in this application, through the arrangement of the first and second flow channels, can guide more cooling flow to the bearing when the cooling impeller rotates, thereby meeting the bearing's requirements.

Description

Technical Field

[0001] This utility model relates to the field of motor structure technology, and more specifically, to a high-speed motor. Furthermore, this utility model also relates to a device including the aforementioned high-speed motor. Background Technology

[0002] Air-bearing high-speed motors are a special type of motor. Their core technology lies in air-bearing, which utilizes a gas film (such as air) to form between the bearing and the rotor, achieving contactless support and rotation of the rotor. This allows the motor to operate at ultra-high speeds, offering numerous advantages such as low friction, high precision, high stability, and long lifespan. It can be widely used in many fields requiring extremely high rotational precision and speed, including industrial manufacturing, energy, aerospace, medical, and scientific research. Applications include semiconductor manufacturing equipment, precision machine tools, high-speed centrifuges, and aero-engine components, providing crucial power support for the development of modern high-tech industries.

[0003] When an electric motor is running, both the stator and rotor will generate heat. In order to ensure the normal operation of the motor, additional cooling air is needed to cool and dissipate heat from the stator and rotor. Through the circulation of cooling air, the heat generated by the stator and rotor during operation is exchanged to the outside of the motor, thereby ensuring that the motor operates reliably within a safe temperature range.

[0004] Currently, the axial load capacity of most mature air bearings and thrust bearings on the market is relatively small. Additionally, at high speeds, the cooling flow directly from the cooling impeller to the non-shaft extension radial bearing is insufficient.

[0005] In summary, how to improve the cooling flow rate of radial bearings is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a high-speed motor that, through the arrangement of the first flow channel and the second flow channel, can draw air from the volute to cool the impeller during rotation, thereby increasing the cooling flow rate.

[0007] Another objective of this invention is to provide a device including the aforementioned high-speed motor.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A high-speed motor, comprising:

[0010] The base is a tubular structure, and a first flow channel parallel to its central axis is provided on the base;

[0011] The bearing is located on the central axis of the machine base;

[0012] An end cap is provided at the first end of the base, and a second flow channel is provided on the end cap, which is perpendicular to the first flow channel. The second flow channel is connected to the first flow channel and is oriented toward the bearing.

[0013] A volute is located at the second end of the base, and the volute is provided with a vent that communicates with the first flow channel;

[0014] A cooling impeller is located at the first end of the base and is used to blow cooling air onto the bearing.

[0015] Preferably, the volute is provided with a flow channel, which is connected to the first flow channel.

[0016] Preferably, the end of the second flow channel is provided with a fork, and the two ends of the fork are respectively facing the bearing and the cooling impeller.

[0017] Preferably, the base includes an inner shell and an outer shell, the first flow channel is disposed between the inner shell and the outer shell, and a plurality of the first flow channels are evenly distributed between the inner shell and the outer shell.

[0018] Preferably, the end cap includes a first plate and a second plate, the first plate and the second plate are fixedly connected, and the second flow channel is disposed between the first plate and the second plate, and a plurality of second flow channels are provided between the first plate and the second plate.

[0019] Preferably, the first end of the base is a non-shaft extension end, the end cover is provided with a through hole, the bearing is disposed through the through hole, and the cooling impeller is coaxially disposed with the bearing.

[0020] Preferably, it further includes a positioning shell, which is disposed at the non-shaft extension end and is used to cover the cooling impeller. The positioning shell is provided with an air inlet.

[0021] Preferably, it further includes a drive device, which is connected to the cooling impeller and is used to drive the cooling impeller to rotate.

[0022] Preferably, the system further includes a stator and a rotor, wherein the rotor passes through the bearing and the stator is sleeved on the rotor.

[0023] An apparatus comprising a high-speed motor, wherein the high-speed motor is any one of the high-speed motors described above.

[0024] This utility model provides a high-speed motor with a tubular frame. An end cover is provided at the first end of the frame, and a bearing is provided on the central axis of the frame. A first flow channel parallel to the central axis is provided on the frame, and a second flow channel communicating with the first flow channel is provided on the end cover. When the cooling impeller starts to rotate, it can not only blow cooling air to the bearing through the cooling impeller, but also guide air from the volute, the first flow channel and the second flow channel, thereby increasing the cooling flow to the bearing to meet the bearing's cooling flow requirements. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a cross-sectional view of the high-speed motor provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the first flow channel and the second flow channel provided by this utility model.

[0028] Figure label:

[0029] 1-Base; 2-First flow channel; 3-Bearing; 4-End cover; 5-Second flow channel; 6-Volume; 7-Cooling impeller; 8-Non-shaft extension end. Detailed Implementation

[0030] 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.

[0031] The core of this utility model is to provide a high-speed motor. This motor has a first flow channel and a second flow channel set on the base and end cover. When the cooling impeller rotates, the cooling flow rate can be increased through the first flow channel and the second flow channel to meet the cooling flow rate requirements of the bearing.

[0032] Another core aspect of this invention is to provide a device that includes the aforementioned high-speed motor.

[0033] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] This application provides a high-speed motor, comprising: a frame 1, a first flow channel 2, a bearing 3, an end cover 4, a second flow channel 5, a volute 6, and a cooling impeller 7;

[0035] The base 1 is a tubular structure, and a first flow channel 2 parallel to its central axis is provided on the base 1.

[0036] Bearing 3 is located on the central axis of the base 1;

[0037] End cap 4 is located at the first end of base 1. End cap 4 is provided with a second flow channel 5 that is perpendicular to the first flow channel 2. The second flow channel 5 is connected to the first flow channel 2 and is oriented toward the bearing 3.

[0038] The volute 6 is located at the second end of the base 1, and the volute 6 is provided with a vent that communicates with the first flow channel 2;

[0039] The cooling impeller 7 is located at the first end of the base 1 and is used to blow cooling air onto the bearing 3.

[0040] For details, please refer to the appendix. Figure 1 Referring to the directions shown in the attached diagram, the base 1 has a tubular structure with its central axis extending laterally. A first flow channel 2 extending laterally is also provided on the base 1. An end cap 4 is provided at the first end on the left side of the base 1, and a second flow channel 5 extending vertically is provided on the end cap 4. Regarding the direction of the second flow channel 5, it should be noted that the gas in the second flow channel 5 flows from the upper or lower end of the end cap 4 towards its central position, corresponding to the bearing 3 located on the central axis of the base 1. A cooling impeller 7 is also provided at the first end of the base 1, and a volute 6 is provided at the second end of the base 1. When the cooling impeller 7 rotates, it can deliver cooling air from left to right, allowing the cooling air to contact the bearing 3 and remove heat from the bearing 3. The arrangement of the first flow channel 2 and the second flow channel 5 allows cooling air to be drawn from the volute 6 into the first flow channel 2 while the cooling impeller 7 rotates. The cold air enters the second flow channel 5 from the first flow channel 2 and finally flows to the bearing 3, increasing the cooling flow rate to meet the cooling flow requirements of the bearing 3.

[0041] Based on the above embodiment, the volute 6 is provided with a flow channel, which is connected to the first flow channel 2.

[0042] Specifically, the volute 6 is not a closed component; it has flow channels. It's important to clarify that these channels must ensure the smooth introduction of cold air into the first flow channel 2. Furthermore, additional... Figure 1 The structure is clear; whether it is the cold air blown by the cooling impeller 7 or the cold air introduced from the first flow channel 2 and the second flow channel 5, in the attached... Figure 1 The airflow is from left to right, so the drainage channel also needs to meet the aforementioned requirements for cold air discharge.

[0043] Based on the above embodiment, the end of the second flow channel 5 is provided with a fork, and the two ends of the fork face the bearing 3 and the cooling impeller 7 respectively.

[0044] For details, please refer to the appendix. Figure 2 Taking the second flow channel 5 in the upper half of the end cover 4 as an example, a fork is provided below the second flow channel 5. The two ends of the fork extend to the left and right along the central axis of the base 1, respectively. The fork to the right can guide part of the cold flow to the bearing 3, thereby increasing the cold flow. The fork to the left can apply part of the cold flow to the cooling impeller 7, which is exactly opposite to the direction of the overall force, thus significantly reducing the overall force.

[0045] Based on the above embodiments, the base 1 includes an inner shell and an outer shell, and a first flow channel 2 is disposed between the inner shell and the outer shell. A plurality of first flow channels 2 are evenly distributed between the inner shell and the outer shell.

[0046] For details, please refer to the appendix. Figure 1 The structure of the base 1 can be regarded as a two-layer concentric tubular structure. The first flow channel 2 is located between the inner shell and the outer shell. Since a reliable connection is required between the inner shell and the outer shell, the first flow channel 2 can appear in the form of multiple strip pipes between the inner shell and the outer shell. This design can not only ensure the reliability of the structure, but also ensure a stable supply of cooling flow.

[0047] Optionally, the inner shell and the outer shell can be connected by a columnar structure arranged radially along the base 1, which can expand the space of the first flow channel 2, but relatively speaking, the stability of the base 1 is reduced.

[0048] Based on the above embodiments, the end cap 4 includes a first plate and a second plate, the first plate and the second plate are fixedly connected, and a second flow channel 5 is disposed between the first plate and the second plate, and a plurality of second flow channels 5 are provided between the first plate and the second plate.

[0049] Specifically, the structure of the end cover 4 is similar to that of the base 1, but the end cover 4 adopts a combination of a first plate and a second plate distributed on the left and right, and the second flow channel 5 is set between the first plate and the second plate. The second flow channel 5 can also be designed as a strip channel connected to the first flow channel 2. From the axial perspective of the base 1, the structure of the second flow channel 5 can be set to extend radially along the base 1.

[0050] Optionally, the first plate and the second plate can be connected by a columnar structure arranged along the axial direction of the base 1. This design can expand the space of the second flow channel 5, but it will reduce the structural stability of the end cover 4.

[0051] Based on the above embodiment, the first end of the base 1 is a non-shaft extension end 8, the end cover 4 is provided with a through hole, the bearing 3 is provided through the through hole, and the cooling impeller 7 is coaxially arranged with the bearing 3.

[0052] Specifically, the left side of the base 1 is the non-shaft extension end 8, and a through hole is provided in the middle of the end cover 4. The bearing 3 is arranged in correspondence with the through hole to ensure that the second flow channel 5 provided in the end cover 4 can guide the cold flow to the bearing 3.

[0053] Based on the above embodiment, a positioning shell is also included. The positioning shell is located at the non-shaft extension end 8 and is used to cover the cooling impeller 7. An air inlet is provided on the positioning shell.

[0054] Specifically, the end cover 4 is provided with a positioning shell, which is installed on the base 1 by bolts. The end cover 4 is also provided with through holes, through which the bolts can pass and thus position the end cover 4. It should be noted that the positioning shell is provided with an air inlet to ensure that the cooling air can be blown to the bearing 3 when the cooling impeller 7 rotates.

[0055] Based on the above embodiments, a driving device is also included, which is connected to the cooling impeller 7 and is used to drive the cooling impeller 7 to rotate.

[0056] Specifically, the driving device is generally an electric motor, which can drive the rotation of the cooling impeller 7, providing power to the cooling impeller 7, thereby blowing cooling air into the base 1.

[0057] Based on the above embodiment, it also includes a stator and a rotor, with the rotor passing through the bearing 3 and the stator sleeved on the rotor.

[0058] Specifically, the machine base 1 is equipped with a stator and a rotor. The rotor runs horizontally through the machine base 1, while the stator is sleeved on the outer periphery of the middle part of the rotor. Bearings 3 are provided at both ends of the rotor to reduce friction.

[0059] In addition to the high-speed motor described above, this utility model also provides a device that includes the high-speed motor disclosed in the above embodiments. For the structure of other parts of the device, please refer to the prior art, which will not be repeated here.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0061] The high-speed motor and device provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high speed electric machine characterized by, include: The base (1) is a tubular structure, and a first flow channel (2) parallel to its central axis is provided on the base (1). Bearing (3) is located on the central axis of the base (1); An end cap (4) is provided at the first end of the base (1). A second flow channel (5) perpendicular to the first flow channel (2) is provided on the end cap (4). The second flow channel (5) is connected to the first flow channel (2) and is oriented toward the bearing (3). A volute (6) is located at the second end of the base (1), and the volute (6) is provided with a vent that communicates with the first flow channel (2); A cooling impeller (7) is located at the first end of the base (1) and is used to blow cooling air onto the bearing (3).

2. The high speed electric machine of claim 1, wherein, The volute (6) is provided with a flow channel, which is connected to the first flow channel (2).

3. The high speed electric machine of claim 2, wherein, The second flow channel (5) has a fork at its end, with the two ends of the fork facing the bearing (3) and the cooling impeller (7) respectively.

4. The high speed electric machine of claim 3, wherein, The base (1) includes an inner shell and an outer shell, and the first flow channel (2) is disposed between the inner shell and the outer shell. A plurality of the first flow channels (2) are evenly distributed between the inner shell and the outer shell.

5. The high speed electric machine of claim 4, wherein, The end cap (4) includes a first plate and a second plate, the first plate and the second plate are fixedly connected, and the second flow channel (5) is disposed between the first plate and the second plate, and a plurality of second flow channels (5) are provided between the first plate and the second plate.

6. The high speed electric machine of claim 5, wherein, The first end of the base (1) is a non-shaft extension end (8), the end cover (4) is provided with a through hole, the bearing (3) is provided through the through hole, and the cooling impeller (7) is coaxially arranged with the bearing (3).

7. A high speed electric machine as claimed in claim 6, characterised in that, It also includes a positioning shell, which is located at the non-shaft extension end (8) and is used to cover the cooling impeller (7). The positioning shell is provided with an air inlet.

8. The high speed electric machine of claim 7, wherein, It also includes a drive device, which is connected to the cooling impeller (7) and is used to drive the cooling impeller (7) to rotate.

9. A high speed electric machine according to any one of claims 1 to 8, characterized in that, It also includes a stator and a rotor, wherein the stator is disposed through the bearing (3) and the stator is sleeved on the rotor.

10. An apparatus comprising a high speed electric machine, characterized in that The high-speed motor is the high-speed motor as described in any one of claims 1 to 9.

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