Wind power generation equipment

Abstract

This utility model discloses a wind power generation device, belonging to the field of wind power generation technology. Specifically, it includes a housing with a sealing cover on top and a fixed cylinder fixedly connected to the bottom. Both ends of the housing are rotatably connected to fan blade shafts, and impellers are fixedly connected to one end of each fan blade shaft outside the housing, with the two impellers rotating in opposite directions. The other end of each fan blade shaft is fixedly connected to a rotating shaft, which is rotatably connected inside the housing via a bearing seat. A power generation mechanism is provided between the opposite ends of the two rotating shafts to convert the rotational mechanical energy of the two rotating shafts into electrical energy. This utility model, by using two oppositely rotating impellers, changes the traditional method of capturing wind power with a single impeller, improving wind power capture efficiency and power generation efficiency. Furthermore, the power generation mechanism simplifies the structure of the device, improves compatibility, and reduces maintenance costs.

Description

Technical Field

[0001] This utility model belongs to the field of wind power generation technology, and specifically relates to wind power generation equipment. Background Technology

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives a rotor to rotate and ultimately outputs alternating current. Traditional wind power generation devices generally adopt a structure of "single impeller + single shaft drive + single power generation unit". Its core relies on a single impeller to capture wind energy and drive the generator rotor to cut magnetic lines of force to generate electricity through mechanical transmission (such as a gearbox). However, it still suffers from low energy capture efficiency, low power generation efficiency, poor structural compatibility, and high maintenance costs. Therefore, there is a need to provide a wind power generation device to solve the above-mentioned technical problems. Utility Model Content

[0003] To address the problems mentioned in the background section, this invention provides a wind power generation device that features improved energy capture and power generation efficiency, good structural compatibility, and reduced maintenance costs.

[0004] To achieve the above objectives, the present invention provides the following technical solution: including a housing, a sealing cover provided on the top of the housing, a fixed cylinder fixedly connected to the bottom of the housing, fan blade shafts rotatably connected to both ends inside the housing, and impellers fixedly connected to one end of each fan blade shaft outside the housing, with the two impellers rotating in opposite directions;

[0005] The other end of each fan blade shaft is fixedly connected to a rotating shaft, which is rotatably connected inside the housing via a bearing seat. A power generation mechanism is provided between the two opposite ends of the rotating shafts to convert the rotational mechanical energy of the two rotating shafts into electrical energy.

[0006] Preferably, the power generation mechanism includes a vertical shaft, a first bevel gear, and two second bevel gears. The vertical shaft is rotatably connected inside the fixed cylinder. The upper end of the vertical shaft extends into the housing and is fixedly connected to the first bevel gear. The two second bevel gears are respectively fixedly connected to the two rotating shafts and mesh with the first bevel gear. The lower end of the vertical shaft extends outside the fixed cylinder and is drivenly connected to the input shaft of the generator.

[0007] Preferably, the power generation mechanism includes a main shaft, an outer magnetic ring, an inner magnetic ring, and a power generation rotor. The main shaft is rotatably connected inside the housing and coaxially arranged with the two rotating shafts. Inner magnetic rings are fixedly connected to both ends of the main shaft. An outer magnetic ring is fixedly connected to the rotating shaft. There is no physical contact between the outer magnetic ring and the inner magnetic ring, and they are driven by magnetic coupling. A power generation rotor is fixedly connected to the main shaft for cutting magnetic lines of force to generate electrical energy as the main shaft rotates.

[0008] Preferably, the power generation mechanism includes a first rotor and a second rotor, the first rotor being fixedly connected to one of the rotating shafts, and the second rotor being fixedly connected to the other rotating shaft. The first rotor and the second rotor generate electrical energy through electromagnetic induction.

[0009] Preferably, the power generation mechanism includes a third rotor, a fourth rotor, and a stator coil. The third rotor is fixedly connected to the end of one of the rotating shafts, and the fourth rotor is fixedly connected to the end of the other rotating shaft. The third rotor and the fourth rotor are arranged opposite to each other and form a closed magnetic field. The stator coil is fixed inside the housing and located between the third rotor and the fourth rotor, so that the closed magnetic field cuts the stator coil to generate electrical energy.

[0010] Preferably, the power generation mechanism includes a magnet disk, a coil disk, and a collector ring. The magnet disk is fixedly connected to one end of one of the rotating shafts, the coil disk is fixedly connected to one end of the other rotating shaft, the collector ring is fixedly connected inside the housing, and the connecting part of the collector ring is connected to the lead wire of the coil disk.

[0011] Preferably, it also includes a gas circulation device for ventilating and dissipating heat from the interior space of the housing. The gas circulation device includes an air inlet slot and an air outlet slot. The air inlet slot is located at the bottom of the housing, and a dust-proof mechanism is provided on the outside of the air inlet slot. The air outlet slot is located on the sealing cover, and a rain-proof mechanism is provided on the outside of the air outlet slot and fixedly connected to the sealing cover.

[0012] Preferably, the dust-blocking mechanism includes a screw, one end of which is fixedly connected to the bottom of the housing. A support sleeve is movably fitted on the screw, and a pressing knob is threadedly connected to the screw below the support sleeve. A dust-blocking frame is fixedly fitted on the outer side of the support sleeve, a first filter screen is fixedly connected to the bottom of the dust-blocking frame, and an air guide hood is fixedly connected to the bottom of the dust-blocking frame.

[0013] Preferably, the rainproof mechanism includes an exhaust hood and a water inlet. The exhaust hood is fixedly connected to the sealing cover, and a cooling fan is rotatably connected inside the exhaust hood. A water inlet is fixedly connected to the top of the exhaust hood, and a second filter screen plate is fixedly sleeved on the outside of the exhaust hood inside the water inlet plate. The outside of the second filter screen plate is fixedly connected to the water inlet plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention changes the traditional method of capturing wind power by using two counter-rotating impellers, thereby improving the wind power capture efficiency and power generation efficiency. Furthermore, the power generation mechanism simplifies the structure of the device, improves its compatibility, and reduces its maintenance costs. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-section of Embodiment 1 of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second main cross-section of Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the main cross-sectional structure of Embodiment 2 of this utility model;

[0021] Figure 5 This is a schematic diagram of the main cross-sectional structure of Embodiment 3 of this utility model;

[0022] Figure 6 This is a schematic diagram of the main cross-sectional structure of Embodiment 4 of this utility model;

[0023] Figure 7 This is a schematic diagram of the main cross-sectional structure of Embodiment 5 of this utility model;

[0024] Figure 8 This is a schematic diagram of the main structure of Embodiment 6 of this utility model;

[0025] Figure 9 This is a schematic diagram of the main cross-sectional structure of Embodiment 6 of this utility model;

[0026] Figure 10 This utility model Figure 9 Enlarged structural diagram at point A in the middle;

[0027] In the diagram: 1. Shell; 2. Sealing cover; 3. Fan blade shaft; 4. Impeller; 5. Rotating shaft; 6. Generating mechanism; 61. Vertical shaft; 62. First bevel gear; 63. Second bevel gear; 64. Main shaft; 65. Outer magnetic ring; 66. Inner magnetic ring; 67. Generating rotor; 68. First rotor; 69. Second rotor; 610. Third rotor; 611. Fourth rotor; 612. Stator coil; 613. Magnet disk; 614. Coil disk; 7. Air inlet slot; 8. Air outlet slot; 9. Dustproof mechanism; 91. Screw; 92. Support sleeve; 93. Press knob; 94. Dustproof frame; 95. First filter screen; 96. Air guide hood; 10. Rainproof mechanism; 101. Exhaust hood; 102. Water hopper; 103. Second filter screen; 104. Cooling fan; 11. Fixed cylinder. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] Please see Figure 1-3 This embodiment provides the following technical solution: a wind power generation device, including a housing 1, a sealing cover 2 is provided on the upper part of the housing 1, and a fixing cylinder 11 is fixedly connected to the lower part of the housing 1. In some embodiments, the sealing cover 2 can be detachably connected to the housing 1 by bolts.

[0031] Both ends of the housing 1 are rotatably connected to fan blade shafts 3. Impellers 4 are fixedly connected to one end of each fan blade shaft 3 outside the housing 1. The two impellers 4 rotate in opposite directions. The other end of each fan blade shaft 3 is fixedly connected to a rotating shaft 5. The rotating shaft 5 is rotatably connected inside the housing 1 through a bearing seat. A power generation mechanism 6 is provided between the two opposite ends of the rotating shafts 5 to convert the rotational mechanical energy of the two rotating shafts 5 into electrical energy. When the external airflow acts on the impellers 4 at the left and right ends of the housing 1, the impellers 4 are driven by the thrust to rotate the fan blade shafts 3 around their own axes. Since the fan blade shafts 3 at both ends are connected to the rotating shafts 5 inside the housing 1, the opposite rotation of the fan blade shafts 3 at both ends will synchronously drive the rotating shafts 5 at both ends to rotate in opposite directions.

[0032] The power generation mechanism 6 includes a vertical shaft 61, a first bevel gear 62, and two second bevel gears 63. The vertical shaft 61 is rotatably connected inside the fixed cylinder 11. The upper end of the vertical shaft 61 extends into the housing 1 and is fixedly connected to the first bevel gear 62. The two second bevel gears 63 are respectively fixedly connected to the two rotating shafts 5. The two second bevel gears 63 mesh with the first bevel gear 62. The lower end of the vertical shaft 61 extends outside the fixed cylinder 11 and is drivenly connected to the input shaft of the generator. The design of the first bevel gear 62 and the second bevel gear 63 ensures that the torque of the two rotating shafts 5 is superimposed. The horizontal rotational power of the rotating shaft 5 is transmitted to the vertical shaft 61 through tooth meshing, and at the same time, the rotation direction is turned vertical. The vertical shaft 61 drives the rotor of the power generation equipment to rotate. The power generation equipment converts the kinetic energy of mechanical rotation into electrical energy through the principle of electromagnetic induction.

[0033] Example 2

[0034] like Figure 4As shown, the power generation mechanism 6 includes a main shaft 64, an outer magnetic ring 65, an inner magnetic ring 66, and a power generation rotor 67. The main shaft 64 is rotatably connected inside the housing 1 and coaxially arranged with the two rotating shafts 5. The inner magnetic rings 66 are fixedly connected to both ends of the main shaft 64. The outer magnetic rings 65 are fixedly connected to the rotating shafts 5. There is no physical contact between the outer magnetic rings 65 and the inner magnetic rings 66, and they are driven by magnetic coupling. The power generation rotor 67 is fixedly connected to the main shaft 64 and is used to generate electricity by cutting magnetic lines of force as the main shaft 64 rotates. During operation, the torque of the two counter-rotating rotating shafts 5 is superimposed through a magnetic coupling, driving the main shaft 64 to rotate at high speed, increasing the magnetic line cutting speed of the power generation rotor 67, thereby improving the power generation efficiency.

[0035] In some embodiments, when a coil is fixed inside the housing 1, a permanent magnet can be installed on the electric rotor. When rotating, the permanent magnet cuts the magnetic lines of force of the stator coil 612 to generate current. When a permanent magnet is fixed inside the housing 1, a coil can be wound on the generator rotor 67. When the coil rotates, it cuts the magnetic lines of force of the fixed magnetic field to generate current. A permanent magnet can be installed on the generator rotor 67. When rotating, the permanent magnet cuts the magnetic lines of force of the stator coil 612 to generate current.

[0036] Example 3

[0037] like Figure 5 As shown, the power generation mechanism 6 includes a first rotor 68 and a second rotor 69. The first rotor 68 is fixedly connected to one of the rotating shafts 5, and the second rotor 69 is fixedly connected to the other rotating shaft 5. The first rotor 68 and the second rotor 69 generate electrical energy through electromagnetic induction. The first rotor 68 and the second rotor 69 rotate in opposite directions. The relative rotational speed of the coil and the magnetic field of the permanent magnet is the sum of their absolute rotational speeds. The intensity of the induced current is significantly improved by cutting the magnetic lines of force at high frequency.

[0038] In some embodiments, the first rotor 68 is a permanent magnet or a magnetic steel sheet, and the second rotor 69 is a coil.

[0039] Example 4

[0040] like Figure 6As shown, the power generation mechanism 6 includes a third rotor 610, a fourth rotor 611, and a stator coil 612. The third rotor 610 is fixedly connected to the end of one of the rotating shafts 5, and the fourth rotor 611 is fixedly connected to the end of the other rotating shaft 5. The third rotor 610 and the fourth rotor 611 are arranged opposite to each other and form a closed magnetic field. The stator coil 612 is fixed inside the housing 1 and located between the third rotor 610 and the fourth rotor 611, so that the closed magnetic field cuts the stator coil 612 to generate electrical energy. In some embodiments, the third rotor 610 is an N-pole permanent magnet group, and the fourth rotor 611 is an S-pole permanent magnet group. The N-pole permanent magnet group and the S-pole permanent magnet group form a closed magnetic field. When the two rotate in opposite directions, they drive the closed magnetic field to rotate, cutting the fixed stator coil 612 to generate electrical energy. The closed magnetic field reduces magnetic line loss, and the reverse rotation increases the cutting frequency, thus doubly improving the power generation.

[0041] Example 5

[0042] like Figure 7 As shown, the power generation mechanism 6 includes a magnet disk 613, a coil disk 614, and a collector ring. The magnet disk 613 is fixedly connected to one end of one of the rotating shafts 5, the coil disk 614 is fixedly connected to one end of the other rotating shaft 5, and the collector ring is fixedly connected inside the housing 1. The connecting part of the collector ring is connected to the lead wire of the coil disk 614. According to the right-hand rule of the law of electromagnetic induction, when the coil cuts the magnetic lines of force, an "alternating induced electromotive force" is generated. After multiple sets of coils are arranged in phase, a continuous alternating induced current is formed in the coil disk 614. The alternating current generated by the coil disk 614 is transmitted to the collector ring through the wire, and then led out to the external electrical equipment through the brush.

[0043] Example 6

[0044] Please see Figure 8-10 To reduce the temperature inside the housing 1, a gas circulation device is also included for ventilation and heat dissipation of the internal space of the housing 1. The gas circulation device includes an air inlet slot 7 and an air outlet slot 8. The air inlet slot 7 is located at the bottom of the housing 1, and a dust-proof mechanism 9 is provided on the outside of the air inlet slot 7. The air outlet slot 8 is located on the sealing cover 2, and a rain-proof mechanism 10 fixedly connected to the sealing cover 2 is provided on the outside of the air outlet slot 8. In some embodiments, the air outlet slot 8 is located in the middle of the sealing cover 2, and there are two air inlet slots 7. The two air inlet slots 7 are symmetrically distributed at the bottom of the housing 1 with the air outlet slot 8 as the center. Through the air inlet slots 7 and the air outlet slots 8, the air convection inside and outside the housing 1 is enhanced, the temperature inside the housing 1 is reduced, and the service life of various electrical components inside the housing 1 is improved.

[0045] The dust-blocking mechanism 9 includes a screw 91, the upper end of which is fixedly connected to the bottom of the housing 1. A support sleeve 92 is movably sleeved on the screw 91. A pressing knob 93 is threadedly connected to the screw 91 below the support sleeve 92. A dust-blocking frame 94 is fixedly sleeved on the outside of the support sleeve 92. A first filter screen 95 is fixedly connected to the bottom of the dust-blocking frame 94. The first filter screen 95 can filter the gas entering the housing 1. The dust-blocking frame 94 and the first filter screen 95 can be disassembled and installed at the bottom of the housing 1 by means of the screw 91 and the pressing knob 93, so that the first filter screen 95 can be disassembled or replaced.

[0046] A guide hood 96 is fixedly connected to the lower part of the dustproof frame 94. In some embodiments, the guide hood 96 has a conical structure. The guide hood 96 facilitates the entry of gas from the air inlet slot 7 into the interior of the housing 1.

[0047] The rainproof mechanism 10 includes an exhaust hood 101 and a water inlet 102. The exhaust hood 101 is fixedly connected to the sealing cover 2. The water inlet 102 is fixedly connected to the top of the exhaust hood 101. A second filter screen 103 is fixedly sleeved on the outside of the exhaust hood 101 inside the water inlet 102. The outside of the second filter screen 103 is fixedly connected to the water inlet 102. By setting the exhaust hood 101 and the water inlet 102, rainwater can be blocked from the outside during the gas discharge process inside the housing 1, preventing rainwater from entering the inside of the housing 1 through the exhaust hood 101 and the exhaust channel, thus affecting the normal operation of the equipment. The second filter screen 103 prevents external dust from flowing back into the inside of the housing 1 from the exhaust channel 8.

[0048] In some embodiments, the exhaust hood 101 is a frustoconical structure with an open bottom, while the water hopper 102 is an inverted cone-shaped structure, and the diameter of the lower end of the water hopper 102 is larger than the diameter of the lower end of the exhaust hood 101, which can better guide rainwater and facilitate the discharge of gas inside the housing 1.

[0049] A cooling fan 104 is rotatably connected inside the water inlet 102. The cooling device is connected to the power supply of the device. During the operation of the cooling fan, the efficiency of air intake and exhaust is improved, thereby improving the heat dissipation efficiency of the casing 1.

[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Wind power generation equipment, characterized in that: Includes a housing (1), a sealing cover (2) is provided on the top of the housing (1), a fixed cylinder (11) is fixedly connected to the bottom of the housing (1), and fan blade shafts (3) are rotatably connected to both ends inside the housing (1). Impellers (4) are fixedly connected to one end of each fan blade shaft (3) located outside the housing (1), and the two impellers (4) rotate in opposite directions. The other end of each fan blade shaft (3) is fixedly connected to a rotating shaft (5). The rotating shaft (5) is rotatably connected inside the housing (1) through a bearing seat. A power generation mechanism (6) is provided between the two opposite ends of the rotating shafts (5) to convert the rotational mechanical energy of the two rotating shafts (5) into electrical energy.

2. The wind power generation equipment according to claim 1, characterized in that: The power generation mechanism (6) includes a vertical shaft (61), a first bevel gear (62) and two second bevel gears (63). The vertical shaft (61) is rotatably connected inside the fixed cylinder (11). The upper end of the vertical shaft (61) extends into the housing (1) and is fixedly connected to the first bevel gear (62). The two second bevel gears (63) are respectively fixedly connected to the two rotating shafts (5). The two second bevel gears (63) mesh with the first bevel gear (62). The lower end of the vertical shaft (61) extends outside the fixed cylinder (11) and is connected to the input shaft of the generator.

3. The wind power generation equipment according to claim 1, characterized in that: The power generation mechanism (6) includes a main shaft (64), an outer magnetic ring (65), an inner magnetic ring (66), and a power generation rotor (67). The main shaft (64) is rotatably connected inside the housing (1) and coaxially arranged with the two rotating shafts (5). The inner magnetic rings (66) are fixedly connected to both ends of the main shaft (64). The outer magnetic ring (65) is fixedly connected to the rotating shaft (5). The outer magnetic ring (65) and the inner magnetic ring (66) have no physical contact and are driven by magnetic coupling. The power generation rotor (67) is fixedly connected to the main shaft (64) for generating electrical energy by cutting magnetic lines of force as the main shaft (64) rotates.

4. The wind power generation equipment according to claim 1, characterized in that: The power generation mechanism (6) includes a first rotor (68) and a second rotor (69). The first rotor (68) is fixedly connected to one of the rotating shafts (5), and the second rotor (69) is fixedly connected to the other rotating shaft (5). The first rotor (68) and the second rotor (69) generate electrical energy through electromagnetic induction.

5. The wind power generation equipment according to claim 1, characterized in that: The power generation mechanism (6) includes a third rotor (610), a fourth rotor (611), and a stator coil (612). The third rotor (610) is fixedly connected to the end of one of the rotating shafts (5), and the fourth rotor (611) is fixedly connected to the end of the other rotating shaft (5). The third rotor (610) and the fourth rotor (611) are arranged opposite to each other and form a closed magnetic field. The stator coil (612) is fixed inside the housing (1) and located between the third rotor (610) and the fourth rotor (611) so that the closed magnetic field cuts the stator coil (612) to generate electrical energy.

6. The wind power generation equipment according to claim 1, characterized in that: The power generation mechanism (6) includes a magnet disk (613), a coil disk (614) and a collector ring. The magnet disk (613) is fixedly connected to one end of one of the rotating shafts (5), the coil disk (614) is fixedly connected to one end of the other rotating shaft (5), and the collector ring is fixedly connected inside the housing (1). The connecting part of the collector ring is connected to the lead wire of the coil disk (614).

7. The wind power generation equipment according to claim 1, characterized in that: It also includes a gas circulation device for ventilating and dissipating heat in the internal space of the housing (1). The gas circulation device includes an air inlet groove (7) and an air outlet groove (8). The air inlet groove (7) is located at the bottom of the housing (1), and a dust-proof mechanism (9) is provided on the outside of the air inlet groove (7). The air outlet groove (8) is located on the sealing cover (2), and a rain-proof mechanism (10) is fixedly connected to the sealing cover (2) on the outside of the air outlet groove (8).

8. The wind power generation equipment according to claim 7, characterized in that: The dust-blocking mechanism (9) includes a screw (91), one end of which is fixedly connected to the bottom of the housing (1). A support sleeve (92) is movably sleeved on the screw (91). A pressing knob (93) is threadedly connected to the screw (91) below the support sleeve (92). A dust-blocking frame (94) is fixedly sleeved on the outside of the support sleeve (92). A first filter screen plate (95) is fixedly connected to the bottom of the dust-blocking frame (94). An air guide hood (96) is fixedly connected to the bottom of the dust-blocking frame (94).

9. The wind power generation equipment according to claim 7, characterized in that: The rainproof mechanism (10) includes an exhaust hood (101) and a water inlet (102). The exhaust hood (101) is fixedly connected to the sealing cover (2). A cooling fan (104) is rotatably connected inside the exhaust hood (101). The water inlet (102) is fixedly connected to the top of the exhaust hood (101). A second filter screen (103) is fixedly sleeved on the outside of the exhaust hood (101) inside the water inlet (102). The outside of the second filter screen (103) is fixedly connected to the water inlet (102).

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