High speed electric dynamometer motor

Abstract

The utility model discloses a high -speed electric power ergometer motor belongs to motor technical field. Mainly include the casing, install stator winding and the rotor of rotating cooperation in the casing inner chamber of casing, the rotor inside is equipped with the liquid mixing chamber, one end of rotor is equipped with the liquid inlet of intercommunication liquid mixing chamber, and high -pressure cooling medium is pumped into liquid mixing chamber through liquid inlet, the outer peripheral wall of rotor is equipped with the oil outlet that communicates with liquid mixing chamber, when the rotation of rotor, the cooling medium in liquid mixing chamber is thrown out from oil outlet and contacts stator winding and carries out heat exchange under the action of centrifugal force and the action of liquid mixing chamber high -pressure environment. The utility model discloses a high -speed electric power ergometer motor can improve the heat dissipation effect of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a high-speed electric dynamometer motor. Background Technology

[0002] High-speed electric dynamometer motors are mainly used in the field of mechanical engineering, especially in equipment for testing motor power output and efficiency. It is a type of motor that can be smoothly speed-regulated and is connected to the output shaft of the motor under test through electrical coupling technology, thereby realizing the testing of the performance of the motor under test.

[0003] To prevent performance degradation caused by excessively high temperatures, existing high-speed electric dynamometer motors have flow channels inside the casing for cooling fluid to carry away some of the heat from the casing as it passes through. However, this method cannot effectively cool the internal rotor and stator windings.

[0004] Therefore, it is necessary to provide a new type of high-speed electric dynamometer motor. Utility Model Content

[0005] Based on the aforementioned problems in the existing technology, the purpose of this utility model embodiment is to provide a high-speed electric dynamometer motor that can improve the heat dissipation effect of the motor.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-speed electric dynamometer motor is provided; including a housing, a stator winding installed in the inner cavity of the housing, and a rotor rotatably fitted on the housing. The rotor has a liquid distribution chamber inside, and one end of the rotor has a liquid inlet communicating with the liquid distribution chamber. High-pressure cooling medium is pumped into the liquid distribution chamber through the liquid inlet. The outer peripheral wall of the rotor has an oil outlet communicating with the liquid distribution chamber. When the rotor rotates, the cooling medium in the liquid distribution chamber is thrown out from the oil outlet under the action of centrifugal force and the high-pressure environment of the liquid distribution chamber and comes into contact with the stator winding for heat exchange.

[0007] Furthermore, the rotor includes a shaft and support end one and support end two respectively disposed at both ends of the shaft, and support end one and support end two are rotatably engaged with the housing.

[0008] Furthermore, the rotor is provided with multiple oil outlets.

[0009] Furthermore, the oil outlet includes a small oil outlet 1 disposed on the outer side wall of the support end 1. The extension path of the oil outlet 1 is along the radial direction of the rotor. When the high-pressure cooling medium in the liquid distribution chamber is sprayed into the inner cavity of the housing through the small oil outlet 1, the cooling medium is refined into mist particles and floated and dispersed in the area near the end of the stator winding.

[0010] Furthermore, the oil outlet also includes a small oil outlet II disposed on the outer side wall of the support end II. The extension path of the oil outlet II is along the radial direction of the rotor. When the high-pressure cooling medium in the liquid distribution chamber is sprayed into the inner cavity of the housing through the small oil outlet II, the cooling medium is refined into mist particles and floated and dispersed in the area near the end of the stator winding.

[0011] Furthermore, a shoulder is provided on the support end and on the side of the oil outlet away from the shaft. The oil outlet also includes a small oil outlet three provided on the shoulder. The extension path of the oil outlet three is inclined relative to the axis of the rotor. The atomized particles of the cooling medium sprayed from the oil outlet three collide with the inner cavity end wall of the housing and then with the inner cavity peripheral side wall of the housing and move to the stator winding away from the rotor.

[0012] Furthermore, a shoulder 2 is provided on the support end 2 and on the side of the oil outlet 2 near the shaft body. The oil outlet also includes a small oil outlet 4 provided on the shoulder 2. The extension path of the oil outlet 4 is inclined relative to the axis of the rotor. The atomized particles of the cooling medium sprayed from the oil outlet 4 impact the inner cavity of the housing.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a high-speed electric dynamometer motor, including a housing, a stator winding installed in the inner cavity of the housing, and a rotor rotatably fitted onto the housing. The rotor has a liquid distribution chamber inside, and one end of the rotor has a liquid inlet communicating with the liquid distribution chamber. High-pressure cooling medium is pumped into the liquid distribution chamber through the liquid inlet. The cooling medium achieves heat exchange through contact with the rotor, thereby removing heat from the rotor. An oil outlet communicating with the liquid distribution chamber is provided on the outer peripheral wall of the rotor. When the rotor rotates, the cooling medium in the liquid distribution chamber is thrown out from the oil outlet under the action of centrifugal force and the high-pressure environment of the liquid distribution chamber, and contacts the stator winding for heat exchange, dissipating the heat. Therefore, through the above technical solution, the high-speed electric dynamometer motor provided by this utility model can more effectively cool the easily heated rotor and stator winding compared to the prior art, thereby improving the motor's heat dissipation effect. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 A cross-sectional structural schematic diagram of the high-speed electric dynamometer motor provided in an embodiment of this utility model.

[0016] Figure 2 A schematic diagram of the rotor provided for an embodiment of this utility model.

[0017] The reference numerals in the figures are as follows: 100, housing; 200, stator winding; 1, rotor; 11, shaft; 12, support end one; 13, support end two; 14, shoulder one; 15, shoulder two; 2, liquid distribution chamber; 21, liquid inlet; 22, oil outlet one; 23, oil outlet two; 24, oil outlet three; 25, oil outlet four. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, a particular feature, structure, or characteristic may be combined in any suitable manner.

[0023] Please refer to Figure 1 and Figure 2 As shown, the high-speed electric dynamometer motor provided by this utility model will now be described, and... Figure 1 and Figure 2 The flow direction of the cooling medium is simply shown by the dashed arrow. The high-speed electric dynamometer motor includes a housing 100, a stator winding 200 installed in the inner cavity of the housing 100, and a rotor 1 rotatably fitted on the housing 100. The rotor 1 has a liquid distribution chamber 2 inside, and one end of the rotor 1 has a liquid inlet 21 that communicates with the liquid distribution chamber 2. High-pressure cooling medium is pumped into the liquid distribution chamber 2 through the liquid inlet 21. The cooling medium achieves heat exchange by contacting the rotor 1, thereby removing the heat from the rotor 1. The outer peripheral wall of the rotor 1 has an oil outlet that communicates with the liquid distribution chamber 2. When the rotor 1 rotates, the cooling medium in the liquid distribution chamber 2 is thrown out from the oil outlet under the action of centrifugal force and the high-pressure environment of the liquid distribution chamber 2, and contacts the stator winding 200 to exchange heat and conduct the heat away. Thus, through the above technical solution, the high-speed electric dynamometer motor provided by this utility model embodiment can more effectively cool down the internally heated rotor 1 and stator winding 200 compared with the prior art, thereby improving the heat dissipation effect of the motor.

[0024] like Figure 2 As shown, in some embodiments, the rotor 1 includes a shaft 11 and support end 12 and support end 2 13 respectively disposed at both ends of the shaft 11. The shaft 11 is used to install a structure for cooperating with the stator winding 200; the support end 12 and support end 2 13 are rotatably engaged with the housing 100.

[0025] like Figure 2 As shown, in some embodiments, the rotor 1 is provided with multiple oil outlets so that the cooling medium in the liquid distribution chamber 2 can be distributed to multiple locations through the multiple oil outlets.

[0026] like Figure 2 As shown, in some embodiments, the oil outlet includes a small oil outlet 22 disposed on the outer wall of the support end 12. Specifically, the extension path of the oil outlet 22 is along the radial direction of the rotor 1. When the high-pressure cooling medium in the liquid distribution chamber 2 is sprayed into the inner cavity of the housing 100 through the small oil outlet 22, the cooling medium is refined into mist particles and floated and dispersed in the area near the end of the stator winding 200. This allows the cooling medium to be uniformly attached to the stator winding 200 to cool it down and suppress the temperature generated in the stator winding 200 due to resistance loss. Specifically, the extension path of the oil outlet 22 points to the inner side of the stator winding 200 and is close to the end.

[0027] like Figure 2As shown, in some embodiments, the oil outlet also includes a small oil outlet 23 disposed on the outer side wall of the support end 2 13. Specifically, the extension path of the oil outlet 23 is along the radial direction of the rotor 1. In this way, when the high-pressure cooling medium in the liquid distribution chamber 2 is sprayed into the inner cavity of the housing 100 through the small oil outlet 23, the cooling medium is refined into mist particles and floated and dispersed in the area near the end of the stator winding 200, so that the cooling medium is evenly attached to the stator winding 200 to cool it down and suppress the temperature generated in the stator winding 200 due to resistance loss. Specifically, the extension path of the oil outlet 23 points to the end of the stator winding 200.

[0028] like Figure 1 and Figure 2 As shown, in some embodiments, a shoulder 14 is provided on the support end 12 and on the side of the oil outlet 22 away from the shaft body 11. The oil outlet also includes a small oil outlet 3 24 provided on the shoulder 14. The extension path of the oil outlet 3 24 is inclined relative to the axis of the rotor 1. In this way, the atomized particles of the cooling medium sprayed from the oil outlet 3 24 impact the inner cavity end wall of the housing 100 and then collide with the inner cavity peripheral side wall of the housing 100 and move to the stator winding 200 on the side away from the rotor 1. This allows the cooling medium to adhere to and contact the side of the stator winding 200 away from the rotor 1, thereby enhancing the heat dissipation effect on the stator winding 200.

[0029] like Figure 1 and Figure 2 As shown, in some embodiments, a shoulder 15 is provided on the support end 2 13 and on the side of the oil outlet 2 23 near the shaft body 11. The oil outlet also includes a small oil outlet 4 25 provided on the shoulder 2 15. The extension path of the oil outlet 4 25 is inclined relative to the axis of the rotor 1. The atomized particles of the cooling medium sprayed from the oil outlet 4 25 impact the inner cavity end wall of the housing 100 and then collide with the inner cavity peripheral side wall of the housing 100 and move to the stator winding 200 on the side away from the rotor 1, thereby enhancing the heat dissipation effect on the stator winding 200.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-speed electric dynamometer motor, characterized in that: The device includes a housing, a stator winding installed inside the housing, and a rotor rotatably fitted onto the housing. The rotor has a liquid distribution chamber inside, and one end of the rotor has a liquid inlet communicating with the liquid distribution chamber. High-pressure cooling medium is pumped into the liquid distribution chamber through the liquid inlet. The outer peripheral wall of the rotor has an oil outlet communicating with the liquid distribution chamber. When the rotor rotates, the cooling medium in the liquid distribution chamber is thrown out from the oil outlet under the action of centrifugal force and the high-pressure environment of the liquid distribution chamber and comes into contact with the stator winding for heat exchange.

2. The high-speed electric dynamometer motor according to claim 1, characterized in that: The rotor includes a shaft and support end one and support end two respectively disposed at both ends of the shaft, and support end one and support end two are rotatably coupled with the housing.

3. The high-speed electric dynamometer motor according to claim 2, characterized in that: The rotor is provided with multiple oil outlets.

4. The high-speed electric dynamometer motor according to claim 3, characterized in that: The oil outlet includes a small oil outlet 1 located on the outer side wall of the support end 1. The extension path of the oil outlet 1 is along the radial direction of the rotor. When the high-pressure cooling medium in the liquid distribution chamber is sprayed into the inner cavity of the housing through the small oil outlet 1, the cooling medium is refined into mist particles and floated and dispersed in the area near the end of the stator winding.

5. The high-speed electric dynamometer motor according to claim 3, characterized in that: The oil outlet also includes a small oil outlet II provided on the outer side wall of the support end II. The extension path of the oil outlet II is along the radial direction of the rotor. When the high-pressure cooling medium in the liquid distribution chamber is sprayed into the inner cavity of the housing through the small oil outlet II, the cooling medium is refined into mist particles and floated and dispersed in the area near the end of the stator winding.

6. The high-speed electric dynamometer motor according to claim 4, characterized in that: A shoulder is provided on the support end and on the side of the oil outlet away from the shaft. The oil outlet also includes a small oil outlet three provided on the shoulder. The extension path of the oil outlet three is inclined relative to the axis of the rotor. The atomized particles of the cooling medium sprayed from the oil outlet three collide with the inner cavity end wall of the housing and then with the inner cavity peripheral side wall of the housing and move to the stator winding away from the rotor.

7. The high-speed electric dynamometer motor according to claim 5, characterized in that: The support end 2 is provided with a shoulder 2 on the side of the oil outlet 2 near the shaft body. The oil outlet also includes a small oil outlet 4 provided on the shoulder 2. The extension path of the oil outlet 4 is inclined relative to the axis of the rotor. The atomized particles of the cooling medium sprayed from the oil outlet 4 impact the inner cavity of the housing.

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