A coaxial main and auxiliary high and low voltage brushless synchronous generator

Abstract

The present invention relates to the technical field of generators, and particularly relates to a coaxial main and auxiliary high and low voltage brushless synchronous generator, which includes a main cabin and an auxiliary cabin. A main generator and an auxiliary generator are respectively installed in the main cabin and the auxiliary cabin. The output ends of the two are coaxially designed and have different voltages. A cooling chamber and a heat dissipation chamber are arranged outside the main cabin. A cooling module is arranged in the inner cavity of the cooling chamber. A plurality of suction fans for sucking air into its inner cavity are arranged on the side wall of the cooling chamber. An exhaust fan with an air outlet facing the inner cavity of the heat dissipation chamber and a flow guiding module are arranged on the bottom surface of the inner cavity of the cooling chamber. The inner cavities of the main cabin, the auxiliary cabin, the cooling chamber, and the heat dissipation chamber are all mutually communicated. In the present invention, the integrated design of the main generator and the auxiliary generator results in relatively high operating heat. Therefore, a cooling chamber and a heat dissipation chamber are designed outside the main cabin to improve the heat dissipation efficiency of the generator.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and particularly to a coaxial main and auxiliary high and low voltage brushless synchronous generator. Background Art

[0002] A generator refers to a mechanical device that converts other forms of energy into electrical energy. It is driven by a water turbine, steam turbine, diesel engine or other power machinery, converts the energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transmits it to the generator, and then the generator converts it into electrical energy. Generators have a wide range of applications in industrial and agricultural production, national defense, science and technology, and daily life.

[0003] In modern society, the dependence on electricity is becoming stronger and stronger. Various electrical equipment requires a stable and continuous power supply, especially in commerce, banks, and hospital facilities. However, due to a series of situations such as energy shortage, insufficient supply during peak electricity consumption, and sudden accidents, power outages often occur. At this time, a vehicle-mounted mobile power station with the characteristics of convenient transportation, flexibility, and reliability can be used as a backup power source to ensure the normal operation of equipment and quickly replace conventional motors to provide emergency power supply in accident repair and natural disasters.

[0004] In a high-altitude environment, the generator in the vehicle-mounted mobile power station not only needs to meet the transportation standards. At the same time, how to achieve long-term continuous, safe and reliable operation of the generator in a high-altitude situation is also a new problem. Due to the different air densities, the load of the generator is also different, which poses new challenges to the design of the generator and the heat dissipation scheme during operation. Summary of the Invention

[0005] In order to overcome the above technical problems, the purpose of the present invention is to provide a coaxial main and auxiliary high and low voltage brushless synchronous generator. In the present invention, the integrated design of the main generator and the auxiliary generator results in relatively high operating heat. Therefore, a cooling chamber and a heat dissipation chamber are designed outside the main cabin to improve the heat dissipation efficiency of the generator.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A coaxial main and auxiliary high and low voltage brushless synchronous generator, including a main cabin and an auxiliary cabin. A main generator and an auxiliary generator are respectively installed in the main cabin and the auxiliary cabin. The output ends of the two are coaxially designed and have different voltages. A cooling chamber and a heat dissipation chamber are provided outside the main cabin. A cooling module is arranged in the inner cavity of the cooling chamber. A plurality of suction fans for sucking air into its inner cavity are arranged on the side wall of the cooling chamber. An exhaust fan and a diversion module with an air outlet facing the inner cavity of the heat dissipation chamber are arranged on the bottom surface of the inner cavity of the cooling chamber. The inner cavities of the main cabin, the auxiliary cabin, the cooling chamber, and the heat dissipation chamber are all interconnected.

[0008] Furthermore, the main cabin body and the auxiliary cabin body are assembled and connected through a flange plate. A plurality of first heat dissipation grooves are equiangularly arranged on the circumferential wall of the main cabin body, and a plurality of second heat dissipation grooves are equiangularly arranged on the circumferential wall of the auxiliary cabin body.

[0009] Furthermore, the cooling bin and the first heat dissipation bin are stacked one above the other. A plurality of fourth heat dissipation grooves are equidistantly arranged on the outer wall of the heat dissipation bin.

[0010] Furthermore, a top cover is arranged on the top surface of the cooling bin. The top cover is movably connected to the cooling bin through screws at the end corners. A plurality of third heat dissipation grooves are equidistantly arranged on the top cover. A rectangular notch is arranged on the bottom surface of the inner cavity of the cooling bin. The depth of the rectangular notch is greater than the depth of the exhaust fan. The exhaust fan is sleeved on the upper end of the rectangular notch.

[0011] Furthermore, struts are arranged at the positions corresponding to the four end corners of the rectangular notch on the bottom surface of the inner cavity of the cooling bin. The struts are inclined and their ends face the central axis of the rectangular notch.

[0012] Furthermore, the cooling module includes a water tank, a water pump, a cooling block and a heat exchanger. All four are fixedly connected to the upper ends of the corresponding struts, and the four are connected through pipelines to form a closed loop. Among them, the pipeline between the water pump and the cooling block is arranged in an S-shaped cycle.

[0013] Furthermore, the guiding module includes a plurality of rollers and guide plates sleeved on the rollers. The plurality of rollers are linearly arranged equidistantly at the lower end of the rectangular notch. Torsion springs are sleeved at the joints of the two ends of the rollers and the inner wall of the rectangular notch. The plurality of guide plates are rotatably connected through connecting plates.

[0014] Furthermore, an electric push rod is arranged on the bottom surface of the cooling bin. The output end of the electric push rod and the guide plate are designed in a T shape, and the electric push rod and the guide plate are on the same horizontal plane.

[0015] Advantages of the present invention:

[0016] 1. To meet the long-distance transportation of mobile power stations in high-altitude environments, the generator must have a short axial distance and light weight. Therefore, this generator adopts a coaxial main and auxiliary high-low voltage brushless synchronous generator structure integration. Because one high-low voltage conversion transformer is reduced, it is lighter in weight than conventional generators and is convenient for transportation;

[0017] 2. The main generator and the auxiliary generator are coaxially connected but electrically independent of each other, so that the generator can synchronously generate high and low voltage electric energy in high-altitude environments, meet different load requirements, and do not interfere with each other;

[0018] 3. The integrated design of the main generator and the auxiliary generator results in relatively high operating heat. Therefore, a cooling chamber and a heat dissipation chamber are designed outside the main cabin to improve the heat dissipation efficiency of the generator. Brief Description of the Drawings

[0019] The present invention will be further described below with reference to the drawings.

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the side structure of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of the cooling chamber and the top cover in the present invention;

[0023] Figure 4 is a schematic diagram of the top surface structure of the cooling chamber in the present invention;

[0024] Figure 5 is a schematic diagram of the structure of the water tank in the present invention;

[0025] Figure 6 is a schematic diagram of the structure of the rectangular notch in the present invention;

[0026] Figure 7 is a schematic diagram of the bottom surface structure of the cooling chamber in the present invention;

[0027] Figure 8 is a schematic diagram of the structure of the electric push rod and the guide plate in the present invention;

[0028] Figure 9 is a schematic diagram of the structure of the rotating roller and the guide plate in the present invention.

[0029] In the figure: 1. Main cabin; 11. First heat dissipation groove; 2. Auxiliary cabin; 21. Second heat dissipation groove; 3. Cooling chamber; 31. Top cover; 32. Screw; 33. Third heat dissipation groove; 34. Rectangular notch; 35. Support rod; 36. Electric push rod; 4. Suction fan; 5. Exhaust fan; 6. Water tank; 61. Water pump; 62. Cooling block; 63. Heat exchanger; 64. Pipeline; 7. Rotating roller; 71. Guide plate; 72. Torsion spring; 73. Connecting plate; 8. Heat dissipation chamber; 81. Fourth heat dissipation groove. Detailed Embodiment

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] As Figure 1 and Figure 2 shown in the figure is the overall structural schematic diagram of a coaxial main - auxiliary high - low - voltage brushless synchronous generator in the present invention. This kind of generator is designed for an on - vehicle mobile power station operating in a high - altitude environment. Structurally, in order to reduce the burden of the on - vehicle mobile power station during movement, the main generator and the auxiliary generator are integrally arranged in the main cabin 1 and the auxiliary cabin 2, shortening the overall size and reducing the weight at the same time. Also, considering that in a high - altitude environment, the traditional air - cooled heat dissipation module is difficult to bear the heat generated by the generator during operation, the heat dissipation module of the generator is newly designed. After long - term exploration and experiments by those skilled in the art, a scheme of stacking the cooling chamber 3 and the heat dissipation chamber 8 is determined, achieving a balance between the heat dissipation efficiency of the generator and the size of the generator, neither affecting the transportation of the generator nor ensuring that its heat dissipation efficiency is above the industry standard.

[0032] As Figure 1 and Figure 2 shown, a coaxial main - auxiliary high - low - voltage brushless synchronous generator includes a main cabin 1 and an auxiliary cabin 2. The main generator and the auxiliary generator are respectively installed in the main cabin 1 and the auxiliary cabin 2. The output ends of the two are coaxially designed and have different voltages. Outside the main cabin 1, there are a cooling chamber 3 and a heat dissipation chamber 8. As Figure 5 shown, the inner cavity of the cooling chamber 3 is provided with a cooling module. The side wall of the cooling chamber 3 is provided with a plurality of suction fans 4 that suck air into its inner cavity. The bottom surface of the inner cavity of the cooling chamber 3 is provided with an exhaust fan 5 with an air outlet facing the inner cavity of the heat dissipation chamber 8 and a flow - guiding module. The inner cavities of the main cabin 1, the auxiliary cabin 2, the cooling chamber 3, and the heat dissipation chamber 8 are all interconnected.

[0033] Based on the above - mentioned technical solution, in order to meet the long - distance transportation of the mobile power station in a high - altitude environment, the generator must have a short axial distance and a light weight. Therefore, this generator adopts the structure integration of a coaxial main - auxiliary high - low - voltage brushless synchronous generator. Because one high - low - voltage conversion transformer is reduced, it is lighter in weight than a conventional generator and is convenient for transportation. The main generator and the auxiliary generator are coaxially connected but electrically independent of each other, enabling the generator to synchronously generate high - and low - voltage electric energy in a high - altitude environment, meeting different load requirements and not interfering with each other.

[0034] As Figure 1 and Figure 2 shown, the main cabin 1 and the auxiliary cabin 2 are assembled and connected through a flange. The circumferential wall of the main cabin 1 is provided with a plurality of first heat dissipation grooves 11 at equal angles, and the circumferential wall of the auxiliary cabin 2 is provided with a plurality of second heat dissipation grooves 21 at equal angles. As Figure 2As shown in the figure, the cooling chamber 3 and the heat dissipation chamber 8 are stacked one above the other. A plurality of heat dissipation slots 81 are equidistantly arranged on the outer wall of the heat dissipation chamber 8. Due to the integrated design of the main generator and the auxiliary generator resulting in relatively high operating heat, a cooling chamber 3 and a heat dissipation chamber 8 are designed outside the main cabin 1. At the same time, considering that heat will accumulate at the ends of the main cabin 1 and the auxiliary cabin 2 during the operation of the generator, correspondingly, heat dissipation slots 11 and 21 are provided to improve the heat dissipation efficiency.

[0035] As Figure 3 shown in the figure, a top cover 31 is provided on the top surface of the cooling chamber 3. The top cover 31 is movably connected to the cooling chamber 3 by screws 32 at the end corners. A plurality of heat dissipation slots 33 are equidistantly arranged on the top cover 31. As Figure 4 and Figure 6 shown in the figure, a rectangular notch 34 is provided on the bottom surface of the inner cavity of the cooling chamber 3. The depth of the rectangular notch 34 is greater than the depth of the exhaust fan 5. The exhaust fan 5 is sleeved on the upper end of the rectangular notch 34. The top cover 31 is connected to the cooling chamber 3 by screws 32, which is convenient for subsequent maintenance and repair. At the same time, the provision of the heat dissipation slots 33 also increases the air intake volume of the cooling chamber 3, further enhancing the cooling effect of the cooling chamber 3.

[0036] As Figure 6 shown in the figure, support rods 35 are provided at the positions corresponding to the four end corners of the rectangular notch 34 on the bottom surface of the inner cavity of the cooling chamber 3. The support rods 35 are inclined and their ends face the central axis of the rectangular notch 34. As Figure 5 shown in the figure, the cooling module includes a water tank 6, a water pump 61, a cooling block 62 and a heat exchanger 63. All four are fixedly connected to the upper ends of the corresponding support rods 35. In practical applications, we found that a spacing of 20 cm between the cooling module and the exhaust fan 5 can achieve a better cooling effect, and the water tank 6, the water pump 61, the cooling block 62 and the heat exchanger 63 are all connected by pipes 64 to form a closed loop. Among them, the pipe 64 between the water pump 61 and the cooling block 62 is arranged in an S-shaped cycle. The circulating pipe 64 can improve the cooling efficiency of the cooling module in a closed space, which is of great significance for the operation of this generator in a high-altitude environment. After the generator operates, heat begins to accumulate in the main cabin 1 and the auxiliary cabin 2. At this time, the suction fan 4 is started. A plurality of suction fans 4 on the side wall of the cooling chamber 3 suck the air flow outside the generator. During this process, the water pump 61 is started. The water pump 61 pumps the coolant in the water tank 6 away. The pumped coolant flows along the pipe 64 through the cooling block 62 and the heat exchanger 63 and then flows back into the water tank 6. Cold air is generated during the flow of the coolant in the pipe 64. These cold airs are guided by the exhaust fan 5 into the heat dissipation chamber 8 and circulate in the heat dissipation chamber 8, the main cabin 1 and the auxiliary cabin 2, so as to achieve the purpose of cooling the main generator and the auxiliary generator.

[0037] As Figure 7 and Figure 8As shown, the diversion module includes a plurality of rotating rollers 7 and diversion plates 71 sleeved on the rotating rollers 7. The plurality of rotating rollers 7 are linearly arranged at equal intervals at the lower end of the rectangular notch 34. As Figure 9 shown, torsion springs 72 are sleeved at the connections between both ends of the rotating roller 7 and the inner wall of the rectangular notch 34. When there is no external force, the diversion plates 71 are inclined towards the main cabin 1. The plurality of diversion plates 71 are rotatably connected by connection plates 73. As Figure 7 shown, an electric push rod 36 is provided on the bottom surface of the cooling chamber 3. The output end of the electric push rod 36 is designed in a T shape with the diversion plate 71, and the electric push rod 36 and the diversion plate 71 are on the same horizontal plane. During the process of cold air being conveyed from the cooling chamber 3 to the heat dissipation chamber 8, the electric push rod 36 is started. When the output end of the electric push rod 36 contacts the diversion plate 71, the diversion plate 71 drives the rotating roller 7 to rotate around its axis under the force, and the torsion spring 72 contracts under the force. Also, because the adjacent diversion plates 71 are rotatably connected by connection plates 73, when the output end of the electric push rod 36 contacts the first diversion plate 71 and causes it to rotate, the remaining diversion plates 71 also rotate simultaneously, thereby changing the direction of the cold air guidance, making the orientation of the cold air cycle between the main cabin 1 and the auxiliary cabin 2, so that both the main cabin 1 and the auxiliary cabin 2 are filled with cold air, ensuring that both the main generator and the auxiliary generator operate in a low-temperature environment. After multiple tests by professionals, compared with the common diversion mechanisms or modules on the market, this diversion module can operate reliably in the plateau environment.

[0038] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The above content is only an example and illustration of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined by this claim book, they should all fall within the protection scope of the present invention.

Claims

1. A coaxial main and auxiliary high and low voltage brushless synchronous generator, comprising a main cabin (1) and an auxiliary cabin (2). A main generator and an auxiliary generator are respectively installed in the main cabin (1) and the auxiliary cabin (2). The output ends of the two are coaxially designed and have different voltages. It is characterized in that, A cooling chamber (3) and a heat dissipation chamber (8) are provided outside the main cabin body (1). A cooling module is arranged in the inner cavity of the cooling chamber (3). A plurality of suction fans (4) for sucking air into its inner cavity are arranged on the side wall of the cooling chamber (3). An exhaust fan (5) with an air outlet facing the inner cavity of the heat dissipation chamber (8) and a flow guiding module are arranged on the bottom surface of the inner cavity of the cooling chamber (3). The inner cavities of the main cabin body (1), the auxiliary cabin body (2), the cooling chamber (3) and the heat dissipation chamber (8) are all communicated with each other; a rectangular notch (34) is formed in the bottom surface of the inner cavity of the cooling chamber (3). The flow guiding module includes a plurality of rotating rollers (7) and flow guiding plates (71) sleeved on the rotating rollers (7). The plurality of rotating rollers (7) are linearly arranged at equal intervals at the lower end of the rectangular notch (34). Torsion springs (72) are sleeved at the joints of the two ends of the rotating roller (7) and the inner wall of the rectangular notch (34). The plurality of flow guiding plates (71) are rotatably connected through a connecting plate (73).

2. A coaxial main and auxiliary high and low voltage brushless synchronous generator according to claim 1, characterized in that, The main cabin body (1) and the auxiliary cabin body (2) are assembled and connected through a flange. A plurality of first heat dissipation grooves (11) are formed in the circumferential wall of the main cabin body (1) at equal angles. A plurality of second heat dissipation grooves (21) are formed in the circumferential wall of the auxiliary cabin body (2) at equal angles.

3. The coaxial main and auxiliary high and low voltage brushless synchronous generator according to claim 2, wherein The cooling chamber (3) and the heat dissipation chamber (8) are stacked one above the other. A plurality of fourth heat dissipation grooves (81) are formed in the outer wall of the heat dissipation chamber (8) at equal intervals.

4. A coaxial main and auxiliary high and low voltage brushless synchronous generator according to claim 3, characterized in that, A top cover (31) is arranged on the top surface of the cooling chamber (3). The top cover (31) is movably connected to the cooling chamber (3) through screws (32) at the end corners. A plurality of third heat dissipation grooves (33) are formed in the top cover (31) at equal intervals. The depth of the rectangular notch (34) is greater than the depth of the exhaust fan (5). The exhaust fan (5) is sleeved at the upper end of the rectangular notch (34).

5. A coaxial main and auxiliary high and low voltage brushless synchronous generator according to claim 4, characterized in that, Supports (35) are arranged at the positions corresponding to the four end corners of the rectangular notch (34) on the bottom surface of the inner cavity of the cooling chamber (3). The supports (35) are inclined and their ends face the central axis of the rectangular notch (34).

6. A coaxial main and auxiliary high and low voltage brushless synchronous generator according to claim 5, characterized in that, The cooling module includes a water tank (6), a water pump (61), a cooling block (62) and a heat exchanger (63). The four are all fixedly connected to the upper ends of the corresponding supports (35) and are connected through pipes (64) to form a closed loop. Among them, the pipe (64) between the water pump (61) and the cooling block (62) is arranged in an S-shaped cycle.

7. A coaxial main and auxiliary high and low voltage brushless synchronous generator according to claim 1, characterized in that, An electric push rod (36) is arranged on the bottom surface of the cooling chamber (3). The output end of the electric push rod (36) and the flow guiding plate (71) are designed in a T shape, and the electric push rod (36) and the flow guiding plate (71) are on the same horizontal plane.

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