Flywheel energy storage device shell and flywheel energy storage device

Abstract

The utility model discloses a flywheel energy storage device shell, which comprises a flywheel shell and is characterized in that a heat conduction copper material is arranged in the flywheel shell, a plurality of cooling pipelines are arranged in the heat conduction copper material, and each cooling pipeline comprises an annular pipeline, a first connecting pipeline, a liquid inlet, a second connecting pipeline and a liquid outlet. Through the arrangement of the liquid inlet and the annular pipeline, external cooling liquid is injected into the liquid inlet, so that the cooling liquid reaches the interior of the annular pipeline and exchanges heat with the surface of the heat conduction copper material, the temperature in the device is reduced, the situation that normal work of the device is affected by too high temperature generated by the device is avoided, and meanwhile the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of flywheel energy storage, specifically to a flywheel energy storage device housing and a flywheel energy storage device. Background Technology

[0002] A flywheel energy storage device is a device that uses a reversible bidirectional motor to convert electrical energy into mechanical energy of a high-speed rotating flywheel. It is commonly used for storing electrical energy, which is then released by the reversible bidirectional motor when needed. The flywheel energy storage device housing is an important component of the device. It not only supports the internal parts of the flywheel energy storage device but also provides protection. The flywheel energy storage device generates a lot of heat during operation, which can cause the temperature of the device to rise and affect its normal operation. Therefore, a flywheel energy storage device housing and a flywheel energy storage device are proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a flywheel energy storage device housing and a flywheel energy storage device, which can solve the problem of overheating during the operation of the flywheel energy storage device.

[0004] To achieve the above objectives, according to the first aspect of this utility model, a flywheel energy storage device housing is provided, including a flywheel outer shell, wherein the interior of the flywheel outer shell is provided with a thermally conductive copper material, and the interior of the thermally conductive copper material is provided with a plurality of cooling pipes;

[0005] The cooling pipe includes a ring pipe, a first connecting pipe, a liquid inlet, a second connecting pipe, and a liquid outlet.

[0006] According to the aforementioned flywheel energy storage device housing, the liquid inlet end of the annular pipe is fixedly connected to a first connecting pipe, the other end of the first connecting pipe is fixedly connected to a liquid inlet, the liquid outlet end of the annular pipe is fixedly connected to a second connecting pipe, and the other end of the second connecting pipe is fixedly connected to a liquid outlet.

[0007] According to the aforementioned flywheel energy storage device housing, the surface of the annular pipe is tightly bonded to a thermally conductive copper material, and the liquid inlet and liquid outlet are located on the outside of the flywheel housing.

[0008] To achieve the above objectives, according to a second aspect of the present invention, a flywheel energy storage device is also provided, comprising the aforementioned flywheel energy storage device housing and flywheel outer shell, upper bearing seat, rotating rod, motor stator, motor rotor, intermediate bearing, flywheel, and lower bearing seat. The upper bearing seat and lower bearing seat are respectively disposed at the upper and lower ends of the flywheel outer shell, and the outer rings of the upper bearing seat and lower bearing seat are fixedly connected to the flywheel outer shell.

[0009] According to the aforementioned flywheel energy storage device, the motor stator and intermediate bearing are located inside the flywheel housing, the outer surface of the motor stator is fixedly connected to the flywheel housing, and the outer ring of the intermediate bearing is fixedly connected to the flywheel housing.

[0010] According to the flywheel energy storage device, the upper end of the rotating rod is fixedly connected to the inner ring of the upper bearing housing, the lower end of the rotating rod is fixedly connected to the inner ring of the lower bearing housing, the surface of the rotating rod is fixedly connected to the motor rotor, and the surface of the rotating rod is fixedly connected to the inner ring of the intermediate bearing.

[0011] According to the aforementioned flywheel energy storage device, the rotating rod, motor rotor, and flywheel are disposed in a cavity inside the flywheel housing.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The flywheel energy storage device housing and the flywheel energy storage device are provided with an inlet and an annular pipe. By injecting external coolant into the inlet, the coolant reaches the inside of the annular pipe and exchanges heat with the surface of the heat-conducting copper material, which reduces the internal temperature of the device and avoids excessively high temperature from affecting the normal operation of the device, while also improving the service life of the device.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a perspective view of a flywheel energy storage device housing and a flywheel energy storage device according to the present invention;

[0017] Figure 2 This is a top view of the housing of a flywheel energy storage device and a cooling pipe for a flywheel energy storage device according to the present invention.

[0018] Figure 3 This is a cross-sectional view of a flywheel energy storage device housing and a flywheel energy storage device according to the present invention;

[0019] Figure 4 This is a perspective view of the housing and internal structure of a flywheel energy storage device according to the present invention.

[0020] In the diagram: 1. Flywheel housing; 2. Cooling pipe; 3. Upper bearing housing; 4. Rotor; 5. Motor stator; 6. Motor rotor; 7. Intermediate bearing; 8. Flywheel; 9. Lower bearing housing; 10. Thermally conductive copper material; 201. Annular pipe; 202. First connecting pipe; 203. Liquid inlet; 204. Second connecting pipe; 205. Liquid outlet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a flywheel energy storage device housing, including a flywheel shell 1, with a thermally conductive copper material 10 inside the flywheel shell 1, and multiple cooling pipes 2 inside the thermally conductive copper material 10. Generally, the flywheel shell 1 is made of steel and cast iron, which have relatively poor thermal conductivity. In contrast, copper and aluminum have better thermal conductivity. By providing a thermally conductive copper material 10 inside the flywheel shell 1, the thermal conductivity of the device is improved, so that the heat generated inside the device can be transferred to the annular pipes 201 more quickly, thereby improving the heat dissipation efficiency of the device.

[0023] The cooling pipe 2 includes an annular pipe 201, a first connecting pipe 202, an inlet 203, a second connecting pipe 204, and an outlet 205. By setting the inlet 203 and the annular pipe 201, external coolant is injected into the inlet 203, allowing the coolant to reach the inside of the annular pipe 201 and exchange heat with the surface of the heat-conducting copper material 10. This reduces the internal temperature of the device, avoids excessively high temperatures from affecting the normal operation of the device, and also improves the service life of the device.

[0024] The inlet end of the annular pipe 201 is fixedly connected to the first connecting pipe 202, and the other end of the first connecting pipe 202 is fixedly connected to the inlet 203. The outlet end of the annular pipe 201 is fixedly connected to the second connecting pipe 204, and the other end of the second connecting pipe 204 is fixedly connected to the outlet 205. By setting the inlet 203 and the outlet 205, it is convenient to inject coolant into the annular pipe 201 and recover the coolant after heat transfer. The surface of the annular pipe 201 is tightly attached to the thermally conductive copper material 10. The inlet 203 and the outlet 205 are located on the outside of the flywheel housing 1.

[0025] A flywheel energy storage device includes a flywheel energy storage device housing and a flywheel outer shell 1, an upper bearing seat 3, a rotating rod 4, a motor stator 5, a motor rotor 6, an intermediate bearing 7, a flywheel 8, and a lower bearing seat 9. The upper bearing seat 3 and the lower bearing seat 9 are respectively located at the upper and lower ends of the flywheel outer shell 1. The outer rings of the upper bearing seat 3 and the lower bearing seat 9 are fixedly connected to the flywheel outer shell 1. By setting the upper bearing seat 3 and the lower bearing seat 9, the stability of the device structure is improved, and the connection between external mechanisms and the device is also facilitated.

[0026] The motor stator 5 and intermediate bearing 7 are located inside the flywheel housing 1. The outer surface of the motor stator 5 is fixedly connected to the flywheel housing 1, and the outer ring of the intermediate bearing 7 is fixedly connected to the flywheel housing 1. The motor stator 5 is an important component of the motor, providing a magnetic field for the rotation of the motor rotor 6. It is a crucial component for realizing the mutual conversion of electrical energy and mechanical energy in the motor. The upper end of the rotating rod 4 is fixedly connected to the inner ring of the upper bearing seat 3, and the lower end of the rotating rod 4 is fixedly connected to the inner ring of the lower bearing seat 9. The surface of the rotating rod 4 is fixedly connected to the motor rotor 6, and the surface of the rotating rod 4 is fixedly connected to the inner ring of the intermediate bearing 7. The rotating rod 4, motor rotor 6, and flywheel 8 are located in the cavity inside the flywheel housing 1. The motor is powered by the electric motor... When rotor 6 is energized, it rotates under the magnetic field generated by stator 5. Rotor 6 drives rotor 4 to rotate, causing flywheel 8 to rotate as well, converting electrical energy into mechanical energy from the rotation of flywheel 8. When energization is stopped, flywheel 8 continues to rotate due to its inertia, storing electrical energy as mechanical energy. When electrical energy is needed, the rotating flywheel 8 drives rotor 6 to rotate in the opposite direction, releasing mechanical energy by converting it back into electrical energy. This device achieves the functions of storing and releasing electrical energy. During this process, friction between internal parts is a key factor affecting the energy storage efficiency of the device. Reducing friction between internal parts is a major challenge that needs to be overcome in the field of energy storage.

[0027] Working principle: During use, when dissipating heat inside the device, the heat generated during operation is absorbed by the thermally conductive copper material 10. Then, coolant is injected through the inlet 203 on the outside of the flywheel housing 1. The coolant passes through the first connecting pipe 202 to the inside of the annular pipe 201. At this time, the thermally conductive copper material 10 and the coolant inside the annular pipe 201 exchange heat, causing the temperature of the thermally conductive copper material 10 to drop. After the heat exchange, the coolant passes through the second connecting pipe 204 to the outlet 205 and is discharged from the inside of the device. This device achieves heat dissipation by carrying away the heat generated by the device through the coolant.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A flywheel energy storage device housing, comprising a flywheel outer shell (1), characterized in that, The flywheel housing (1) is provided with a heat-conducting copper material (10) inside, and the heat-conducting copper material (10) is provided with multiple cooling pipes (2) inside; The cooling pipe (2) includes an annular pipe (201), a first connecting pipe (202), a liquid inlet (203), a second connecting pipe (204), and a liquid outlet (205).

2. The flywheel energy storage device housing as described in claim 1, characterized in that: The inlet end of the annular pipe (201) is fixedly connected to the first connecting pipe (202), the other end of the first connecting pipe (202) is fixedly connected to the inlet (203), the outlet end of the annular pipe (201) is fixedly connected to the second connecting pipe (204), and the other end of the second connecting pipe (204) is fixedly connected to the outlet (205).

3. The flywheel energy storage device housing as described in claim 1, characterized in that: The surface of the annular pipe (201) is in close contact with the thermally conductive copper material (10), and the liquid inlet (203) and liquid outlet (205) are located on the outside of the flywheel housing (1).

4. A flywheel energy storage device, comprising a flywheel energy storage device housing and a flywheel outer shell (1) as described in any one of claims 1-3, an upper bearing seat (3), a rotating rod (4), a motor stator (5), a motor rotor (6), an intermediate bearing (7), a flywheel (8), and a lower bearing seat (9), characterized in that, The upper bearing seat (3) and the lower bearing seat (9) are respectively located at the upper and lower ends of the flywheel housing (1), and the outer rings of the upper bearing seat (3) and the lower bearing seat (9) are fixedly connected to the flywheel housing (1).

5. The flywheel energy storage device as described in claim 4, characterized in that: The motor stator (5) and intermediate bearing (7) are located inside the flywheel housing (1). The outer surface of the motor stator (5) is fixedly connected to the flywheel housing (1), and the outer ring of the intermediate bearing (7) is fixedly connected to the flywheel housing (1).

6. The flywheel energy storage device as described in claim 4, characterized in that: The upper end of the rotating rod (4) is fixedly connected to the inner ring of the upper bearing seat (3), the lower end of the rotating rod (4) is fixedly connected to the inner ring of the lower bearing seat (9), the surface of the rotating rod (4) is fixedly connected to the motor rotor (6), and the surface of the rotating rod (4) is fixedly connected to the inner ring of the intermediate bearing (7).

7. A flywheel energy storage device as described in claim 4, characterized in that: The rotating rod (4), the motor rotor (6), and the flywheel (8) are located in the cavity inside the flywheel housing (1).

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