Generator

Abstract

The utility model discloses a generator, which comprises a shell assembly, a winding assembly, a rotor assembly and an end cover assembly, the end cover assembly comprises an end cover body, a rotor bearing and a plurality of transmission gears; the rotor assembly comprises a rotor shaft and a driving gear; a winding iron core is arranged on the inner wall of the winding assembly, and two ends are meshed with the transmission gear; the rotor shaft penetrates through the rotor bearing, the driving gear is arranged among the transmission gears and connected with the transmission gears in a meshed mode, the rotor shaft drives the driving gear to rotate and drives the transmission gears to rotate in the opposite direction, and the winding assembly and the transmission gears rotate in the same direction. The transmission gear in meshed connection with the driving gear is arranged on the end cover body, the transmission gear is in meshed connection with the winding iron core, and the transmission ratio between the driving gear and the transmission gear is adjusted to increase the rotating speed of the winding assembly, so that the functions of low-speed input and high-speed output are realized; and the possibility of deformation and fracture of the rotor is reduced.

Description

Technical Field

[0001] This utility model relates to the field of generator technology, and specifically to a generator. Background Technology

[0002] Generators are mechanical devices that convert mechanical energy into electrical energy. They are driven by water turbines, steam turbines, diesel engines, or other power machinery, converting the energy generated by water flow, air flow, fuel combustion, or nuclear fission into mechanical energy, which is then transmitted to the generator and converted into electrical energy.

[0003] Currently, for high-speed generators on the market, the rotor is usually located in the stator. The rotor rotates at high speed under the drive of the power source, and the magnetic field it generates also rotates at high speed. The stator windings, on the other hand, remain stationary. When the rotor magnetic field moves relative to the stator windings, cutting magnetic field lines, the magnetic flux in the stator windings changes, thereby generating an induced electromotive force.

[0004] However, the centrifugal force exerted on the high-speed rotor is enormous, which can easily lead to rotor deformation, breakage, and other problems, thereby damaging the generator and preventing it from generating electricity. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a generator that solves the problem that the high-speed rotor is subjected to huge centrifugal force, which can easily lead to rotor deformation and cracking, and thus damage the generator and prevent it from generating electricity.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a generator, comprising a housing assembly, a winding assembly disposed within the housing assembly, a rotor assembly disposed within the winding assembly, and end cap assemblies disposed at both ends of the housing assembly;

[0007] An end cap assembly includes an end cap body, a rotor bearing located at the center of the end cap body, and a plurality of transmission gears circumferentially arranged around the rotor bearing and disposed on the end cap body.

[0008] The rotor assembly includes a rotor shaft and drive gears located at both ends of the rotor shaft;

[0009] The winding assembly has a winding core on its inner wall and its two ends are meshed with the transmission gear.

[0010] The rotor shaft passes through the rotor bearing, the drive gear is disposed between the plurality of transmission gears and meshes with the transmission gears, the rotor shaft drives the drive gear to rotate, and at the same time drives the transmission gears to rotate in the opposite direction, and the winding assembly rotates in the same direction as the transmission gears.

[0011] In summary, the generator proposed in this utility model achieves low-speed input and high-speed output by setting a transmission gear on the end cover body and connecting it to the drive gear, and by adjusting the transmission ratio between the drive gear and the transmission gear, thereby increasing the rotational speed of the winding assembly and reducing the possibility of rotor deformation and breakage. Specifically, the end cover assembly includes an end cover body, a rotor bearing located at the center of the end cover body, and several transmission gears circumferentially wound around the rotor bearing and located on the end cover body; the rotor assembly includes a rotor shaft and drive gears located at both ends of the rotor shaft; the winding assembly has a winding core on its inner wall, and both ends are connected to the transmission gears. The rotor shaft passes through the rotor bearing, and the drive gear is located among the several transmission gears and engages with them. The rotor shaft drives the drive gear to rotate, and simultaneously drives the transmission gears to rotate in the opposite direction, while the winding assembly rotates in the same direction as the transmission gears. By adjusting the transmission ratio between the drive gear and the transmission gears, low-speed input and high-speed output are achieved to obtain the desired voltage.

[0012] According to one aspect of the above technical solution, the rotor shaft is also provided with a rotor core, and several centrifugal fans extend from both ends of the rotor core along the circumference to follow the rotation of the rotor core.

[0013] According to one aspect of the above technical solution, the winding assembly includes a winding housing, a winding core disposed on the inner wall of the winding housing, and a slip ring disposed on the outer periphery of the winding housing, wherein both ends of the winding housing are movably connected to the transmission gear.

[0014] According to one aspect of the above technical solution, both ends of the inner wall of the winding housing are provided with internal gear rings, which are meshed with the transmission gear.

[0015] According to one aspect of the above technical solution, the edge of the end cover body is provided with a plurality of mounting bearings evenly distributed along the circumference to abut against the outer wall of the winding housing.

[0016] According to one aspect of the above technical solution, the housing assembly includes a base, a cable outlet box disposed on the base, and a plurality of carbon brush holders disposed on the outer periphery of the base and passing through the cable outlet box, wherein each of the carbon brush holders is provided with carbon brushes at both ends.

[0017] According to one aspect of the above technical solution, the carbon brush is inserted into the base, and its end near the winding housing is conformally set to the circumferential surface of the winding housing.

[0018] 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

[0019] Figure 1 This is an exploded view of the generator structure in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the rotor assembly in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the end cap assembly in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the outer shell assembly in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the winding assembly in one embodiment of the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of the winding assembly in one embodiment of the present invention.

[0025] Component symbol explanation in the attached diagram:

[0026] The components include: housing assembly 100, base 110, terminal box 120, carbon brush holder 130, carbon brush 140, winding assembly 200, winding housing 210, internal gear ring 211, winding core 220, slip ring 230, rotor assembly 300, rotor shaft 310, drive gear 320, rotor core 330, centrifugal fan 340, end cover assembly 400, end cover body 410, rotor bearing 420, transmission gear 430, and assembly bearing 440. Detailed Implementation

[0027] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used herein are for illustrative purposes only and are 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 limiting the present invention.

[0029] In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; and they can refer to the internal connection of 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. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0030] Please see Figures 1-6 The diagram shows a schematic representation of a generator provided in one embodiment of the present invention. The generator includes a housing assembly 100, a winding assembly 200 disposed within the housing assembly 100, a rotor assembly 300 disposed within the winding assembly 200, and end cap assemblies 400 disposed at both ends of the housing assembly 100.

[0031] To reduce the possibility of rotor deformation and breakage due to high-speed rotation, this application proposes to achieve a low-speed input and high-speed output function by adjusting the gear transmission ratio. To achieve this function, the rotor assembly 300 includes a rotor shaft 310, drive gears 320 respectively located at both ends of the rotor shaft 310, and a rotor core 330 with magnets located between the two drive gears 320. Several centrifugal fans 340 extend circumferentially from both ends of the rotor core 330 and rotate with the rotor core 330. Both ends of the rotor shaft 310 pass through an end cover assembly 400, which provides support for the rotor assembly 300, allowing the rotor shaft 310 to rotate within the winding assembly 200. Furthermore, the centrifugal fans 340 dissipate heat while the rotor assembly 300 rotates, cooling the rotor assembly 300 and ensuring its normal operation.

[0032] Furthermore, the end cap assembly 400 includes an end cap body 410, a rotor bearing 420 disposed at the center of the end cap body 410, a plurality of transmission gears 430 circumferentially arranged around the rotor bearings 420 and disposed on the end cap body 410, and a plurality of mounting bearings 440 uniformly arranged circumferentially along the edge of the end cap body 410. Since the two ends of the rotor shaft 310 respectively pass through the rotor bearings 420 at both ends, the drive gear 320 disposed on the rotor shaft 310 is disposed among the plurality of transmission gears 430. In this embodiment, the number of transmission gears 430 is three.

[0033] It is worth noting that, in order to achieve the function of low-speed input and high-speed output, the drive gear 320 is meshed with several transmission gears 430 so that while the rotor shaft 310 drives the drive gear 320 to rotate, it also drives the surrounding transmission gears 430 to rotate in the opposite direction. At the same time, by adjusting the gear ratio between the drive gear 320 and the transmission gears 430, the transmission ratio can be adjusted, so that the transmission gears 430 can rotate at high speed while the rotor shaft 310 is input at low speed.

[0034] In addition, the end cap body 410 and the housing assembly 100 can be connected by fasteners so that the two ends of the winding assembly 200 abut against the end cap body 410 and drive the winding assembly 200 to rotate.

[0035] To enable the rotation of the winding assembly 200, the winding assembly 200 includes a winding housing 210, a winding core 220 disposed on the inner wall of the winding housing 210, and a slip ring 230 disposed on the outer periphery of the winding housing 210. Furthermore, both ends of the inner wall of the winding housing 210 are provided with internal gear rings 211. When both ends of the winding housing 210 abut against the end cover body 410, the internal gear rings 211 mesh with the transmission gear 430. When the rotor shaft 310 drives the drive gear 320 to rotate, according to the gear transmission principle, the rotation direction of the drive gear 320 is the same as that of the rotor. It transmits the rotation to the internal gear ring 211 on the winding assembly 200 through the transmission gear 430 on the end cover body 410, thereby driving the winding housing 210 to rotate. The rotation direction of the winding housing 210 is the same as that of the transmission gear 430, while the rotation direction of the transmission gear 430 is opposite to that of the drive gear 320. Therefore, the rotation direction of the winding housing 210 is opposite to that of the rotor, resulting in relative rotation between the winding core 220 inside the winding housing 210 and the rotor core 330 on the rotor shaft 310, thus generating an induced electromotive force. In this embodiment, the slip ring 230 is set as a four-phase slip ring 230 to ensure stable transmission of power and signals in the rotating system.

[0036] It is worth noting that when the rotor shaft 310 is input at a certain speed, the winding assembly 200 will generate an opposite speed. The speed ratio between them can be designed and adjusted according to the gear transmission ratio. At this time, the relative speed will increase by a multiple of the input of the rotor shaft 310, thus achieving the result of low-speed input and high-speed output, and the voltage of the generator can obtain the desired value.

[0037] In addition, this application adopts a dual-drive structure, which has a higher transmission torque. It uses six identical drive gears 430, two identical drive gears 320, and two identical internal gear rings 211, which can achieve coaxial transmission without any speed transmission difference. Furthermore, the drive gears 430 and the mounting bearings 440 are all mounted on the end cover body 410, so that the outer wall of the winding housing 210 abuts against the mounting bearings 440, and the inner ring meshes with the drive gears 430. This can ensure the coaxiality of the rotor and the winding assembly 200, while also meeting the assembly process requirements. Moreover, this assembly method makes the winding assembly 200 more evenly stressed, reduces the vibration generated by the winding assembly 200, and increases its impact resistance.

[0038] The housing assembly 100 includes a base 110, a terminal box 120 mounted on the base 110, and a plurality of brush holders 130 located on the outer periphery of the base 110 and passing through the terminal box 120. Each brush holder 130 has a brush 140 at both ends. The brush 140 passes through the base 110, with its end near the winding housing 210 conforming to the circumferential surface of the winding housing 210. This application adopts a dual-brush 140 mode, where one phase voltage is conducted through two brushes 140, achieving low brush voltage drop and stronger conductivity. The brushes 140 can be quickly replaced externally, and since each phase uses a separate brush 140, there is no commutation spark. It is worth emphasizing that in this embodiment, the brush holder is a four-phase brush holder, and the slip ring is a four-phase slip ring to ensure the corresponding quantity.

[0039] In summary, the generator proposed in this utility model achieves low-speed input and high-speed output by setting a transmission gear on the end cover body and connecting it to the drive gear, and by adjusting the transmission ratio between the drive gear and the transmission gear, thereby increasing the rotational speed of the winding assembly and reducing the possibility of rotor deformation and breakage. Specifically, the end cover assembly includes an end cover body, a rotor bearing located at the center of the end cover body, and several transmission gears circumferentially wound around the rotor bearing and located on the end cover body; the rotor assembly includes a rotor shaft and drive gears located at both ends of the rotor shaft; the winding assembly has a winding core on its inner wall, and both ends are connected to the transmission gears. The rotor shaft passes through the rotor bearing, and the drive gear is located among the several transmission gears and engages with them. The rotor shaft drives the drive gear to rotate, and simultaneously drives the transmission gears to rotate in the opposite direction, while the winding assembly rotates in the same direction as the transmission gears. By adjusting the transmission ratio between the drive gear and the transmission gears, low-speed input and high-speed output are achieved to obtain the desired voltage.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A generator, characterized in that, The generator includes a housing assembly, a winding assembly disposed within the housing assembly, a rotor assembly disposed within the winding assembly, and end cover assemblies disposed at both ends of the housing assembly; An end cap assembly includes an end cap body, a rotor bearing located at the center of the end cap body, and a plurality of transmission gears circumferentially arranged around the rotor bearing and disposed on the end cap body. The rotor assembly includes a rotor shaft and drive gears located at both ends of the rotor shaft; The winding assembly has a winding core on its inner wall and its two ends are meshed with the transmission gear. The rotor shaft passes through the rotor bearing, the drive gear is disposed between the plurality of transmission gears and meshes with the transmission gears, the rotor shaft drives the drive gear to rotate, and at the same time drives the transmission gears to rotate in the opposite direction, and the winding assembly rotates in the same direction as the transmission gears.

2. The generator according to claim 1, characterized in that, The rotor shaft is also provided with a rotor core, and several centrifugal fans extend from both ends of the rotor core along the circumference to follow the rotation of the rotor core.

3. The generator according to claim 1, characterized in that, The winding assembly includes a winding housing, a winding core disposed on the inner wall of the winding housing, and a slip ring disposed on the outer periphery of the winding housing. Both ends of the winding housing are movably connected to the transmission gear.

4. The generator according to claim 3, characterized in that, Both ends of the inner wall of the winding housing are provided with internal gear rings, which are meshed with the transmission gear.

5. The generator according to claim 1, characterized in that, The edge of the end cap body is provided with several mounting bearings evenly distributed along the circumference to abut against the outer wall of the winding housing.

6. The generator according to claim 1, characterized in that, The housing assembly includes a base, a cable outlet box disposed on the base, and a plurality of carbon brush holders disposed on the outer periphery of the base and passing through the cable outlet box, wherein each of the carbon brush holders is provided with carbon brushes at both ends.

7. The generator according to claim 6, characterized in that, The carbon brush is inserted into the base, and its end near the winding housing is shaped to conform to the circumferential surface of the winding housing.

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