Generator set

Abstract

The embodiment of the invention provides a generator set, and relates to the field of power supply equipment. The generator set comprises a driving device, a protective cover, a permanent magnet generator, an inverter and a control assembly, the driving device is provided with a rotating output end, and the permanent magnet generator comprises a rotor and a stator. According to the generator set provided by the embodiment of the invention, the rotor of the generator is directly connected with the output end of the driving device, the stator of the generator is arranged in the protective cover, and meanwhile, the inverter and the control assembly are also arranged in the protective cover; according to the generator set, a rack, a shell of the inverter, a shell of the control assembly, a cooling fan of the permanent magnet generator, cooling fins of the inverter and a rotating shaft for connecting the generator with the output end of the driving device are omitted, the overall size of the generator set is reduced, the weight is reduced, and therefore carrying is convenient; and the electromagnetic shielding performance of the generator set is improved by arranging the waveguide structure, so that the generator set can adapt to a more complex electromagnetic environment.

Description

Technical Field

[0001] The present invention relates to the field of power supply equipment, and in particular to a generator set. Background Art

[0002] Portable generator sets use fuel combustion within a piston cylinder to drive the crankshaft. Using the principle of electromagnetic induction, the generator then generates an induced electromotive force, which in turn generates current through a closed load circuit. For example, a diesel generator set generates electricity by burning diesel within the cylinder, which in turn drives the crankshaft.

[0003] Generally, these portable generator sets are used outdoors to provide power for temporary operations. However, these existing generator sets install the generator, diesel engine, inverter, and control box in different areas of the rack, resulting in a large overall weight. Transporting them requires the cooperation of multiple people or the use of mechanical lifting equipment, which makes them inconvenient to carry and cannot be used in harsh environments or special scenarios. Summary of the Invention

[0004] The present invention provides a generator set, which can solve the problem that the existing generator sets are heavy and inconvenient to carry.

[0005] The embodiments of the present invention can be implemented as follows: An embodiment of the present invention provides a generator set, comprising: A driving device having a rotation output end; A protective cover is connected to the driving device, and the rotation output end is located inside the protective cover; The permanent magnet generator includes a rotor and a stator, wherein the rotor is connected to the rotation output end, and the stator is arranged in a protective cover and cooperates with the rotor; Inverter, the inverter is housed in a protective cover; A control component is housed in the protective cover.

[0006] Optionally, the stator is electrically connected to the inverter, and the inverter is electrically connected to the control component.

[0007] Optionally, a cooling fan is further connected to the rotation output end, and the cooling fan is arranged in front of the rotor and inside the protective cover.

[0008] Optionally, a fixing ring is provided inside the protective cover, and the stator is mounted on the fixing ring.

[0009] Optionally, an air inlet is provided on the protective cover, and the air inlet is connected to the interior of the protective cover.

[0010] Optionally, the cover body of the protective cover portion at the air inlet is a waveguide structure.

[0011] Optionally, the waveguide structure is a plate, a block, a strip, or a concave-convex point.

[0012] Optionally, the control component includes an overload protection device, which is electrically connected to the inverter.

[0013] Optionally, a first box body and a second box body are provided on the protective cover, both the first box body and the second box body are connected to the interior of the protective cover, the inverter is installed in the first box body, and the control component is installed in the second box body.

[0014] Optionally, the driving device is a diesel engine or a gasoline engine, wherein the diesel engine or the gasoline engine has a crankshaft, and the rotor is connected to the crankshaft.

[0015] Beneficial effects of the embodiments of the present invention: The generator set includes a drive device, a protective cover, a permanent magnet generator, an inverter and a control component. The drive device has a rotating output end. The permanent magnet generator includes a rotor and a stator. The rotor is connected to the rotating output end. The stator is arranged in the protective cover and cooperates with the rotor. The protective cover is connected to the drive device, and the rotating output end is located inside the protective cover. The inverter and the control component are both arranged inside the protective cover. The generator set of the embodiment of the present invention is designed with a protective cover, which is installed on the drive device. The rotor of the generator is directly connected to the output end of the drive device. The stator of the generator is arranged in the protective cover. At the same time, the inverter and the control component are also arranged inside the protective cover to form an integrated generator set. Compared with the existing generator set, the generator set of the embodiment of the present invention eliminates the frame, the housing of the inverter, the housing of the control component and the rotating shaft connecting the generator and the output end of the drive device. The overall volume of the generator set is reduced and the weight is reduced, which is convenient for transportation and can be used in inconvenient transportation and special scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 An explosion diagram of a generator set provided in an embodiment of the present invention; Figure 2 A schematic diagram of the assembled components of a generator set provided in an embodiment of the present invention; Figure 3 A schematic structural diagram of a driving device provided in an embodiment of the present invention; Figure 4A schematic structural diagram of a protective cover, a first box body, and a second box body provided in an embodiment of the present invention; Figure 5 A schematic structural diagram of a fixing ring provided in an embodiment of the present invention; Figure 6 A schematic structural diagram of a heat dissipation fan provided in an embodiment of the present invention; Figure 7 It is a structural schematic diagram of part of the control components provided on the second box body provided in an embodiment of the present invention.

[0018] Icons: 1-driving device; 10-rotation output end; 11-machine body; 2-protective cover; 20-cover body; 201-air inlet; 21-connecting part; 30-stator; 4-cooling fan; 40-connecting plate; 41-fin; 5-fixing ring; 50-ring body; 51-opening; 6-first box body; 7-second box body. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0024] The terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0025] Unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] It should be noted that for the aforementioned various method embodiments, for simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, some steps can be performed in other orders or simultaneously. The steps in the method embodiments of this application can be adjusted in order, combined, or deleted according to actual needs.

[0027] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0028] In a broad sense, a generator set is a system that converts mechanical energy into electrical energy. In a narrower sense, a generator set refers to a device that generates electricity by using the principle of "electromagnetic induction" through the combustion of fuel in a piston cylinder to drive the crankshaft. For example, common portable generator sets include diesel generators and gasoline generators. Portable generator sets can be used as temporary outdoor power generation equipment for emergency and special occasions. For example, in the military field, diesel generator sets serve as the main outdoor power supply equipment, used to power command systems or weapon electronic equipment. Diesel generator sets burn diesel in the cylinder to drive the crankshaft, which in turn drives the generator to generate electricity.

[0029] Existing generator sets install their components separately in different areas of the frame, resulting in a bulky and heavy overall structure. This requires multiple personnel or mechanical lifting equipment to move, making it inconvenient for use in harsh environments or military applications. For example, a 3kW diesel generator set primarily consists of a diesel engine, a permanent magnet generator (PMG), an inverter, a control box, and a frame. The PMG is mounted on the diesel engine's output shaft (fixed to the frame's bottom beam). The PMG's output cable connects to the inverter's input (typically fixed to the frame's center beam), which in turn connects to the control box (typically mounted on the other side of the frame's center beam). The diesel engine, PMG, inverter, and control box are each independently located in different locations within the frame, each requiring its own protective enclosure. As a result, the generator set typically weighs between 72 and 95 kg (according to a military centralized procurement catalog from a certain year), exceeding the weight of an average adult man. Moving the unit would require considerable effort on the part of even two men.

[0030] In addition, the permanent magnet motor, inverter and control box of the generator set are interconnected by cables. The permanent magnet motor, inverter and control box are all installed on the frame, and the overall electromagnetic closed environment is not formed. Its electromagnetic compatibility can only meet the system self-compatibility requirements (implementing the standard GJB1389A), and cannot meet the electromagnetic radiation emission RE102 requirements (implementing the standard GJB151B, which is higher than the standard GJB1389A). Therefore, the generator set with dispersed components cannot be used in occasions with more stringent requirements on the electromagnetic environment (occasions where the GJB151B standard is implemented).

[0031] In view of this, an embodiment of the present invention provides a generator set, which can solve the above problems and will be described in detail below.

[0032] Please refer to Figure 1 and Figure 2 The generator set includes a drive device 1, a protective cover 2, a permanent magnet generator, an inverter and a control component. The drive device 1 has a rotation output end 10. The permanent magnet generator includes a rotor and a stator 30. The rotor is connected to the rotation output end 10. The stator 30 is arranged in the protective cover 2 and cooperates with the rotor; the protective cover 2 is connected to the drive device 1, and the rotation output end 10 is located inside the protective cover 2. The inverter and control component are both arranged inside the protective cover 2.

[0033] The generator set of the embodiment of the present invention installs the protective cover 2 on the drive device 1. The rotor of the permanent magnet generator is directly connected to the rotation output terminal 10 of the drive device 1. The protective cover 2 provides an installation location for the stator 30 of the permanent magnet generator and the inverter and control component. The inverter and control component and the stator 30 of the generator are all arranged in the protective cover 2. Compared with the arrangement method of arranging each component separately on the frame, the generator set of the embodiment of the present invention uses a protective cover 2 to cover the inverter, control component and permanent magnet generator. Moreover, the protective cover 2 is connected to the drive device 1, thereby eliminating the frame, the housing of the inverter, the housing of the control component and the rotating shaft connecting the generator and the rotation output terminal 10 of the drive device 1. The overall volume of the generator set is reduced, the overall weight is reduced, and it is easy to carry. It can be used in inconvenient transportation and special scenarios. In addition, the connecting wiring harness between the permanent magnet generator and the inverter and the control component is also located in the protective cover 2. The protective cover 2 can be set into a relatively closed structure, thereby improving the electromagnetic shielding performance and meeting the requirements of electromagnetic radiation emission RE102.

[0034] The drive device 1 is a mechanical device for driving the permanent magnet generator rotor. It can be driven by fuel / fuel combustion or by human power, and its specific form is not limited. In an embodiment of the present invention, the drive device 1 is a diesel engine or a gasoline engine. The diesel engine or gasoline engine has a crankshaft, which serves as a rotational output end 10, and the rotor is directly connected to the crankshaft. When the diesel engine or gasoline engine is started, the diesel or gasoline burns in the cylinder and drives the piston to reciprocate. The piston and crankshaft are connected by a connecting rod, which converts the reciprocating motion of the piston into rotational motion of the crankshaft.

[0035] The crankshaft and the rotor of the permanent magnet generator are directly connected, and this connection can be in any of a variety of ways. For example, multiple screw holes can be provided on both the crankshaft and the rotor. The screw holes on the crankshaft and the rotor are compatible and positioned correspondingly. Matching bolts can be installed in the screw holes on the crankshaft and the screw holes on the rotor to directly secure the crankshaft and the rotor together, thereby driving the rotor to rotate. Of course, the crankshaft and the rotor can also be directly welded or fixed together using a mortise and tenon joint. The various ways of directly connecting the crankshaft and the rotor are not listed here, and this embodiment does not limit them.

[0036] The permanent magnet generator includes a rotor, a stator 30, end caps, and bearings. The rotor is directly connected to the crankshaft, and the stator 30 is configured to cooperate with the rotor. The stator 30 forms a rotating magnetic field, and the rotor cuts the magnetic flux lines, thereby generating current, which is then conducted through the stator 30. In embodiments of the present invention, the permanent magnet generator can take various forms, such as a DC generator or an AC generator. The stator 30 can be located inside or outside the rotor. A commercially available generator can be selected as needed.

[0037] Optionally, stator 30 is electrically connected to an inverter. The current output by stator 30 may not meet the requirements of the electrical equipment. The inverter can be used to rectify and convert the current to meet the requirements of the electrical equipment. Inverters are common devices in the power industry. Their specific structure and operating principle are not described in detail here; they can be purchased directly on the market.

[0038] Of course, there is a risk of burning the electrical equipment when the current output after rectification and conversion by the inverter is directly connected to the electrical equipment. For example, the current is too large or the power is on for a long time, resulting in too high a temperature. Therefore, an overload protection device is arranged on the wires electrically connecting the inverter and the electrical equipment. The overload protection device is electrically connected to the inverter and the electrical equipment; the overload protection device can be a fuse and a fuse box. The fuse box is provided with an input terminal and an output terminal. The two ends of the fuse are respectively connected to the input terminal and the output terminal, the wires led out of the inverter are connected to the input terminal, and the wires connected to the electrical equipment are connected to the output terminal. When the current is too large or the temperature is too high, the fuse will blow to protect the electrical equipment.

[0039] The protective cover 2 is connected to the body 11 of the driving device 1. For example, when the driving device 1 is a diesel engine, the body 11 is the diesel engine body, and the rotating output end 10 is the diesel engine crankshaft; a circle of threaded holes is provided on the diesel engine body, and the threaded holes are distributed around the outer periphery of the diesel engine crankshaft.

[0040] refer to Figure 3 and Figure 4 The protective cover 2 includes a cover body 20 and a connecting portion 21. One end of the cover body 20 is open and the other end is closed. The edge of one end of the opening is fixedly connected to the connecting portion 21. A circle of threaded holes is provided on the connecting portion 21. The threaded holes on the connecting portion 21 are compatible with the threaded holes provided on the diesel engine body. The protective cover 2 can be fixed to the diesel engine body by bolts. The connecting portion 21 and the cover body 20 can be connected by welding, or can be made by integral casting, stamping or other methods. A cavity is formed inside the cover body 20. When the connecting portion 21 is connected to the diesel engine body, the crankshaft of the diesel engine and the rotor fixedly connected to the crankshaft are both located in the cavity of the cover body 20. Since the stator 30 needs to be fitted with the rotor, the stator 30 is also arranged in the cavity of the cover body 20.

[0041] A fixing ring 5 is provided inside the protective cover 2, and the stator 30 is mounted on the fixing ring 5. Figure 5 The fixing ring 5 includes a ring body 50 and an opening 51. The ring body 50 and the opening 51 are directly connected or integrally formed. The cavity in the middle of the stator 30 matches the shape and size of the ring body 50. The stator 30 is sleeved on the ring body 50 and fixed by bonding or other means, thereby fixing the stator 30 and the fixing ring 5 together. A plurality of slots are provided on the opening 51. A card block is provided inside the cover 20. The slots and the card block are adapted to each other. The slots and the card block can be quickly positioned to quickly install the fixing ring 5 inside the protective cover 2. When the card block is locked in the slot and the fixing ring 5 is fixed inside the cover 20 by screws / bolts, the stator 30 is fixed inside the protective cover 2.

[0042] When the permanent magnet generator has an inner rotor structure, the ring body 50 of the fixing ring 5 further defines an axial through-hole through which the diesel engine crankshaft passes. The rotor is disposed within the ring body 50 of the fixing ring 5 and is connected to the end of the diesel engine crankshaft passing through the axial through-hole. When the permanent magnet generator has an outer rotor structure, a connecting bracket is required to connect the diesel engine crankshaft and the rotor. The rotor is sleeved on the exterior of the stator 30. Of course, the connecting bracket can be a flange that is connected to both the rotor and the diesel engine crankshaft.

[0043] The specific structure of the rotor in the permanent magnet generator, the specific structure of the stator 30 and the specific structure of other auxiliary accessories are not described in detail in the embodiment of the present invention. The permanent magnet generator is an existing device.

[0044] Optionally, a manual starter rope is connected to the crankshaft of the diesel engine, and the diesel engine can be started by pulling the manual starter rope. Of course, the diesel engine can also be started by electric starting. After the diesel engine is started, the crankshaft drives the rotor to rotate, and the stator 30 outputs current from the guide wire. The current is rectified and converted by the inverter and then transmitted to the overload protection device, and then supplied to the electrical equipment.

[0045] In the embodiment of the present invention, the overall shape of the protective cover 2 is cylindrical to accommodate the shapes of the rotor and stator 30. In other embodiments, the protective cover 2 may have other structural forms, which are not limited to this. However, it should be noted that the protective cover 2 should be as compact as possible while ensuring that its internal components can function properly, avoiding excessive size and weight that would hinder transportation and storage.

[0046] Reference again Figure 4The protective cover 2 further includes a first box body 6 and a second box body 7 on the cover body 20. Both the first box body 6 and the second box body 7 are in communication with the interior of the protective cover 2. The inverter is mounted on the first box body 6, and the control assembly is mounted on the second box body 7, so that the control assembly, the inverter, and the permanent magnet generator are all housed within the protective cover 2. The inverter, the permanent magnet generator, and the control assembly are all disposed within the protective cover 2, which makes the overall structure of the generator set more compact and occupies less space. Furthermore, the frame, the inverter housing, and the control assembly housing can be eliminated, thereby reducing the weight of the generator set. The first box body 6 and the second box body 7 can protrude toward the outside of the cover body 20 of the protective cover 2, which does not increase the overall size of the cover body 20 and thus reduces the weight of the generator set.

[0047] In the embodiment of the present invention, both the first box body 6 and the second box body 7 are rectangular boxes, and the first box body 6 and the second box body 7 are respectively distributed on the left and right sides of the cover body 20. This ensures that the weight on both sides of the cover body 20 is relatively evenly distributed, preventing the center of gravity of the generator set from shifting to one side. In other embodiments, the first box body 6 and the second box body 7 can be of any other shape, and their arrangement can also differ from that of the present embodiment.

[0048] When the control unit, inverter, and permanent magnet generator are all installed in the protective cover 2, the temperature inside it will rise during operation. To ensure that each component is maintained at a relatively suitable temperature environment, heat dissipation and cooling facilities are required. In this embodiment, a cooling fan 4 is also connected to the diesel engine crankshaft to dissipate heat and cool the interior of the protective cover 2.

[0049] refer to Figure 6 The cooling fan 4 includes a connecting disk 40 and a plurality of fins 41. The connecting disk 40 is disc-shaped and has a through hole in the middle thereof. The connecting disk 40 can be sleeved on the diesel engine crankshaft through the through hole. The connecting disk 40 is also provided with a plurality of screw holes, through which bolts are assembled to fix the connecting disk 40 on the crankshaft. The plurality of fins 41 are fixed to the connecting disk 40 by welding or other methods. The plurality of fins 41 are fixed on the connecting disk 40 in an annular and equidistant manner. When the crankshaft rotates, the connecting disk 40 and the plurality of fins 41 are driven to rotate, thereby generating airflow to dissipate heat for the control component, the inverter, and the permanent magnet generator. The cooling fan 4 in this embodiment is arranged in front of the rotor and inside the protective cover 2. At the same time, the protective cover 2 is provided with an air inlet 201, which is in communication with the interior of the protective cover 2. When the cooling fan 4 rotates, it can discharge the hot air inside the protective cover 2 while introducing cold air from the outside.

[0050] The generator set in the embodiment of the present invention is provided with a cooling fan 4 to dissipate heat and cool down all components inside the protective cover 2. Compared with the existing distributed generator sets, the generator set in the embodiment of the present invention can save the cooling fan of the permanent magnet generator and the heat sink of the inverter, which is not only beneficial to reducing the overall weight of the generator set, but also can save production costs.

[0051] It is worth mentioning that the diesel engine crankshaft in the embodiment of the present invention needs to be extended compared to the existing diesel engine oil crankshaft so that it can be directly connected to the rotor and the cooling fan 4.

[0052] Reference again Figure 4 Air inlets 201 are provided on the shield 20. These inlets 201 are small holes, and there are multiple of them, spaced apart and arranged in a circle around the shield 20. To prevent electromagnetic radiation from within the protective shield 2 from spreading outward and to prevent external electromagnetic interference from affecting the various components within the protective shield 2, the portion of the shield 20 at the air inlet 201 has a waveguide structure. This improves the generator set's adaptability in complex electromagnetic environments and enables it to meet the electromagnetic radiation emission requirements RE102 (implementing the standard GJB151B).

[0053] The waveguide structure can be configured as a waveguide plate, a waveguide block, a waveguide strip, a waveguide concave-convex point, or other waveguide form, which is not limited in this embodiment. The waveguide structure is used to directionally guide electromagnetic waves, guiding them into a closed hollow metal tube, thereby confining them within the protective cover 2. External electromagnetic interference entering through the air inlet 201 will also be guided by the waveguide structure and directed into the closed metal tube, thereby avoiding interference with the normal operation of internal control components, inverters, and other components.

[0054] refer to Figure 7 In addition to the overload protection device, the control assembly may also include a switch, a display meter, and a start key. The switch, display meter, and start key are disposed on the second housing 7. The switch may be disposed on the line between the inverter and the overload protection device to control the on / off state of the circuit. The display meter is connected to the guide wiring harness for the stator 30 output current and the line between the inverter and the overload protection device to display electrical parameters in real time. The start key is used to start the diesel engine. Of course, the control assembly includes but is not limited to the aforementioned components / devices. The specific configuration of the control assembly can refer to the components within an existing generator set control box and will not be further described in this embodiment.

[0055] After actual practice, a 3kW diesel generator set was improved and manufactured according to the technical concept of the present invention. The diesel generator set produced can reduce the weight by about 25% compared with the conventional generator set (that is, the original unit weight of 72kg was optimized to 54kg). The weight is greatly reduced and can be carried by one person without the need for multiple people to cooperate or the use of lifting machinery and equipment. The adaptability is greatly improved, and it is particularly suitable for the field of military equipment.

[0056] The generator set of the embodiment of the present invention directly connects the rotor of the generator to the output end of the drive device 1, and the stator 30 of the generator is arranged in the protective cover 2. At the same time, the inverter and the control component are also arranged inside the protective cover 2 to form an integrated generator set. Compared with the existing generator set, the generator set of the embodiment of the present invention eliminates the frame, the inverter housing, the control component housing, the permanent magnet generator cooling fan, the inverter heat sink and the rotating shaft connecting the generator and the output end of the drive device 1. The overall volume of the generator set is reduced and the weight is reduced, which is convenient for transportation. In addition, the electromagnetic shielding performance of the generator set is improved by setting a waveguide structure, so that the generator set can adapt to more complex electromagnetic environments.

[0057] The foregoing description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be readily conceived by a person skilled in the art within the technical scope disclosed herein are intended to be encompassed within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A generator set, characterized in that: include: A drive device (1), the drive device (1) having a rotation output end (10); A protective cover (2), the protective cover (2) being connected to the driving device (1), and the rotation output end (10) being located inside the protective cover (2); A permanent magnet generator, comprising a rotor and a stator (30), wherein the rotor is connected to the rotation output end (10), and the stator (30) is arranged in the protective cover (2) and cooperates with the rotor; an inverter, the inverter being housed in the protective cover (2); A control component is housed in the protective cover (2).

2. The generator set according to claim 1, characterized in that: The stator (30) is electrically connected to the inverter, and the inverter is electrically connected to the control component.

3. The generator set according to claim 1, characterized in that: The rotation output end (10) is also connected to a cooling fan (4), and the cooling fan (4) is arranged in front of the rotor and located inside the protective cover (2).

4. The generator set according to claim 1, characterized in that: A fixing ring (5) is provided inside the protective cover (2), and the stator (30) is mounted on the fixing ring (5).

5. The generator set according to claim 1, characterized in that: An air inlet (201) is provided on the protective cover (2), and the air inlet (201) is in communication with the interior of the protective cover (2).

6. The generator set according to claim 5, characterized in that: The cover body (20) of the protective cover (2) at the air inlet (201) is a waveguide structure.

7. The generator set according to claim 6, characterized in that: The waveguide structure is a plate, a block, a strip, or a concave-convex point.

8. The generator set according to claim 1, characterized in that: The control component includes an overload protection device, which is electrically connected to the inverter.

9. The generator set according to claim 1, characterized in that: A first box body (6) and a second box body (7) are provided on the protective cover (2); the first box body (6) and the second box body (7) are both connected to the interior of the protective cover (2); the inverter is installed in the first box body (6), and the control component is installed in the second box body (7).

10. The generator set according to any one of claims 1 to 9, characterized in that: The driving device (1) is a diesel engine or a gasoline engine, the diesel engine or the gasoline engine has a crankshaft, and the rotor is connected to the crankshaft.

Images