CN108869025B - Small-sized rotor engine power generation integrated system and working method - Google Patents
Small-sized rotor engine power generation integrated system and working method Download PDFInfo
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- CN108869025B CN108869025B CN201810566554.6A CN201810566554A CN108869025B CN 108869025 B CN108869025 B CN 108869025B CN 201810566554 A CN201810566554 A CN 201810566554A CN 108869025 B CN108869025 B CN 108869025B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/042—Rotating electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a small rotor engine power generation integrated system and a working method, and belongs to the field of small rotor engines. The invention comprises an engine rear end cover, a coil winding, a coil rack, a magnetic pole, a balance weight and a rectifier. The magnetic poles are uniformly distributed along the circumferential direction of the balancing weight to form the magnetic pole balancing weight which is used as a rotor in the engine power generation integrated system. The coil winding, the coil rack and the engine rear end cover form a stator in the engine power generation integrated system. The magnetic pole balancing weight is matched with the rotational inertia of other parts of the engine by means of the coordination of the rotational inertia of the magnetic pole balancing weight and the rotational inertia of other parts of the engine, and the effect of neutralizing vibration caused by the rotating unbalanced mass of the engine is achieved. In order to avoid the influence on the magnetic field of the magnetic pole, the balance weight is changed into a non-magnetic material. The invention can realize the power generation integrated design of the engine, meet the power generation function of the small engine, simplify the structure to the maximum extent and ensure the miniaturization and integration of the power generation integrated system of the small engine.
Description
Technical Field
The invention relates to auxiliary equipment for a small-sized rotor engine, in particular to a power generation system based on the rotor engine and a working method, and belongs to the field of small-sized rotor engines.
Background
With the development of micro-electro-mechanical systems (MEMS) and the introduction of various miniaturized military equipment concepts, the development of micro-energy systems with small volume, light weight, high energy density and continuous operation has become a focus of attention in various countries. Compared with the conventional portable power supply, the microminiature engine adopts hydrocarbon as fuel, has much higher energy density, can keep stable voltage and has the advantage of low cost. Therefore, the micro engine has wide application prospect in electronic devices in various industries such as industry, agriculture, environmental protection, medical treatment and health, and the like, and can also directly provide power for micro machines such as minicars, micro planes, micro pumps and the like.
The current research aiming at the microminiature rotor engine mainly focuses on the structural and mechanism research, but neglects the research on auxiliary equipment; the research on the engine power generation system mainly focuses on the coupling and matching between the existing engine and the existing generator, and neglects the research on the engine integrated generator system. The technology that the engine drives the generator to operate to generate electricity is mature, and the engine is very common on the existing automobile engine. However, if the concept of engine-generator separation is continued, and the intermediate driving device is added, the miniaturized engine cannot be driven on the miniaturized road any farther. The engine power generation integrated system provides a method for solving the problem that the size of a power generation system is difficult to reduce after an engine is miniaturized, namely, a generator is abstracted, and only basic functions of the generator are extracted and applied to the structure of the engine. In order to meet the requirement of engine miniaturization, the research on an engine power generation integrated system has great significance.
Disclosure of Invention
Aiming at the problem that the power generation system is difficult to simplify after the engine of the traditional engine-generator combined power generation system is miniaturized, the invention discloses a small rotor engine power generation integrated system and a working method thereof, which aim to solve the technical problems that: the rotor engine power generation integrated system is reasonable in structure and reliable in work, the engine power generation integrated design is achieved, the power generation function of a small engine is met, meanwhile, the structure is simplified to the maximum extent, and the miniaturization and integration of the small engine power generation integrated system can be guaranteed.
The purpose of the invention is realized by the following technical scheme.
The invention discloses a small-sized rotor engine power generation integrated system which comprises an engine rear end cover, a coil winding, a coil frame, a magnetic pole, a balance weight and a rectifier.
The balancing weight is used to neutralize vibrations caused by the rotating unbalanced mass of the engine. The balance weight is arranged at the tail end of the eccentric shaft of the engine and performs stable rotary motion together with the eccentric shaft of the engine, and the rotating speed is consistent with the output rotating speed of the eccentric shaft of the engine. The balancing weight is matched with the rotational inertia of other parts of the engine by means of the coordination of the rotational inertia of the balancing weight and the rotational inertia of other parts of the engine, the effect of neutralizing vibration caused by the rotating unbalanced mass of the engine is achieved, and the position of the mass center of the balancing weight and the eccentric mass are two most critical parameters. In order to avoid the influence of the balance weight on the magnetic field of the magnetic pole, the balance weight is changed into a non-magnetic material.
The engine rear end cover is used as one of two side end covers of the engine power generation integrated system, has the functions of accommodating a rotor and forming a combustion chamber in the engine, and also has the important function of accommodating a balance weight. And expanding the shell structure of the engine rear end cover for coating the balance weight to a state that a space for installing a coil frame is reserved in the engine rear end cover.
The magnetic poles are uniformly distributed along the circumferential direction of the balancing weight and are used as a rotor in an engine power generation integrated system, namely, the magnetic poles and the balancing weight are integrated into a whole to form the magnetic pole balancing weight, and the magnetic pole balancing weight is required to be ensured not to change the integral mass center position and the eccentric mass of the balancing weight before improvement in order to realize the vibration caused by the rotation unbalanced mass of the magnetic pole balancing weight and the engine. The pole balancing weights perform a rotational movement inside the engine rear end cover. The rear end cover of the engine plays a role in protecting the shell of the magnetic pole balance weight. And winding a coil winding on the coil frame, wherein the coil winding is formed by connecting a plurality of small coils in series, and the number of the small coils is consistent with that of the magnetic poles. The direction of the single small coil around the axis is consistent with the diameter direction of the magnetic pole balancing weight. The coil winding, the coil rack and the engine rear end cover form a stator in the engine power generation integrated system. The output end of the coil winding penetrates through the rear end cover of the engine and is combined with a rectifier outside the engine to output direct current outwards.
In order to avoid the influence of the common iron-based material on a magnetic field and reduce the mass, the rear end cover of the engine is made of an aluminum alloy material.
The invention discloses a working method of a small rotor engine power generation integrated system, which comprises the following steps: when the engine runs normally, the magnetic pole balance weight rotates along with the eccentric shaft of the engine, and a magnetic field generated by the magnetic poles on the circumference of the magnetic pole balance weight also rotates along with the magnetic pole balance weight; the small power generation coils fixed on the rear end cover of the rotor engine lead to periodic change of magnetic flux due to the change of a magnetic field passing through the small power generation coils, so that induced electromotive force is generated, and periodic alternating current is emitted outwards; all the small coils are connected in series to transmit the alternating current. The rectifier is connected to the outside of the engine, so that alternating current generated by the coil winding is adjusted into direct current, electric energy generated by the engine is stored in the battery, the power generation integration design of the engine is realized, and the power generation function of a small engine is met.
Has the advantages that:
1. the invention discloses a small rotor engine power generation integrated system, which uniformly distributes magnetic poles along the circumferential direction of a balancing weight, namely, the magnetic poles and the balancing weight are integrated into a whole to form the magnetic pole balancing weight which is used as a rotor in the engine power generation integrated system; in addition, the shell structure of the magnetic pole counterweight covered by the rear end cover of the engine is enlarged, so that a space for installing a coil frame is reserved in the rear end cover of the engine, and the coil winding, the coil frame and the rear end cover of the engine form a 'stator' in an engine power generation integrated system; the engine power generation integrated design is realized through the improvement, the stable power generation function of the small engine is met, the structure is simplified to the maximum degree, the miniaturization and integration of a small engine power generation integrated system can be guaranteed, and the engine power generation integrated system has important significance in the aspect of engine miniaturization.
2. According to the small-sized rotor engine power generation integrated system disclosed by the invention, the effect of avoiding the influence of the balance weight on the magnetic field of the magnetic pole is realized by changing the balance weight into the non-magnetic material, so that the power generation efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a small rotary engine power generation integrated system disclosed in this embodiment.
Wherein: 1-rear end cover of engine; 2-a coil winding; 3-coil former; 4-magnetic pole; 5, balancing weight; 6-a rectifier.
Fig. 2 is a schematic diagram of the front and back sides of the magnetic pole balancing weight, fig. 2a is a schematic diagram of the back side of the magnetic pole balancing weight, and fig. 2b is a schematic diagram of the front side.
Fig. 3 is a schematic view (cross section) of two limit states of maximum and minimum magnetic fluxes of the coil, fig. 3a is a schematic view of the maximum limit state of the magnetic flux, and fig. 3b is a schematic view of the minimum limit state of the magnetic flux.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings that illustrate, by way of illustration only, the basic structure of the invention and, therefore, show only the components that are relevant to the invention.
Example 1:
as shown in fig. 1, the present embodiment discloses a small rotor engine power generation integrated system, which includes an engine rear end cover 1, a coil winding 2, a coil bobbin 3, a magnetic pole 4, a balance weight 5, and a rectifier 6 for converting alternating current into direct current.
The counterweight 5 serves to neutralize vibrations caused by the rotating unbalanced mass of the engine. The balance weight 5 is arranged at the tail end of the eccentric shaft of the engine and performs stable rotary motion together with the eccentric shaft of the engine, and the rotating speed is consistent with the output rotating speed of the eccentric shaft of the engine. The balance weight 5 is matched with the rotational inertia of other parts of the engine by means of the coordination of the rotational inertia of the balance weight 5, the effect of neutralizing vibration caused by the rotating unbalanced mass of the engine is achieved, and the position of the mass center of the balance weight 5 and the eccentric mass are two most critical parameters. To avoid the influence of the balancing weight 5 on the magnetic field of the magnetic pole 4, the balancing weight 5 is made of non-magnetic material instead.
The engine rear end cover 1 is one of two side end covers of the engine power generation integrated system, has the functions of accommodating a rotor and forming an internal combustion chamber of the engine, and also has the important function of accommodating a balance weight 5. As shown in fig. 1, the housing structure in which the engine rear end cover 1 covers the counterweight 5 is enlarged to leave a space for mounting the bobbin 3 inside the engine rear end cover 1.
As shown in fig. 2, the magnetic poles 4 are uniformly distributed along the circumferential direction of the balance weight 5 as a "rotor" in the engine power generation integrated system, that is, the magnetic poles 4 and the balance weight 5 are integrated into a magnetic pole balance weight. In order to achieve the vibrations caused by the pole-balancing weights and the rotating unbalanced masses of the engine, it is necessary to ensure that the pole-balancing weights do not change the position of the overall mass center of the improved front balancing weight 5 and the eccentric mass. The pole balancing weights perform a rotational movement inside the engine rear end cover 1. The engine rear end cover 1 plays a role in protecting a shell of the magnetic pole balance weight. As shown in fig. 1, a coil winding 2 is wound on a bobbin 3, the coil winding 2 is formed by connecting a plurality of small coils in series, and the number of the small coils is consistent with the number of the magnetic poles 4. The direction of the single small coil around the axis is consistent with the diameter direction of the pole balance weight 5. The coil winding 2, the coil frame 3 and the engine rear end cover 1 form a stator in the engine power generation integrated system. The output end of the coil winding 2 penetrates through the rear end cover 1 of the engine and is combined with a rectifier 6 outside the engine to output direct current outwards.
In order to avoid the influence of a common iron-based material on a magnetic field and reduce the mass, the rear end cover 1 of the engine is made of an aluminum alloy material.
The working method of the small rotor engine power generation integrated system disclosed by the embodiment comprises the following steps: when the rotary engine is normally operated, the magnetic pole balance weight 5 shown in fig. 2 rotates together with the eccentric shaft, and the magnetic field generated by the magnetic pole 4 on the circumference of the magnetic pole balance weight 5 also rotates together with the magnetic pole balance weight 5. The small generating coils fixed on the rear end cover 1 of the rotor engine cause the periodic variation of magnetic flux due to the variation of a magnetic field passing through the inside of the small generating coils. The concrete conditions are as follows: when the magnetic pole 4 coincides with a certain pole on the bobbin 3 (the case shown in fig. 3 (a)), the magnetic flux in the coil is maximum; the magnetic flux in the coil is minimal when the pole 4 continues to rotate forward through a small angle, completely out of alignment with the pole on the former 3 (the situation shown in figure 3 (b)). The change in the magnetic flux will cause the coil to generate an induced electromotive force, thereby generating an induced current. Induced currents of the windings on all the poles are synchronously generated and synchronously disappear, so that after the currents are connected in series, the currents can be increased in an accumulated mode, all the currents are processed by electronic components in the rectifier 6 and are converted into direct currents, electric energy generated by the engine can be stored in the battery conveniently, the power generation integrated design of the engine is achieved, and the power generation function of a small engine is met.
The above detailed description is provided for the purpose of illustrating the invention, and it should be understood that the present invention is only exemplary and is not intended to limit the scope of the invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the invention should be included in the scope of the invention.
Claims (3)
1. A small rotor engine power generation integrated system which characterized in that: the motor comprises an engine rear end cover (1), a coil winding (2), a coil rack (3), a magnetic pole (4), a balance weight (5) and a rectifier (6);
the balance weight (5) is used for neutralizing vibration caused by the rotating unbalanced mass of the engine; the balance weight (5) is arranged at the tail end of the eccentric shaft of the engine and performs stable rotary motion together with the eccentric shaft of the engine, and the rotating speed is consistent with the output rotating speed of the eccentric shaft of the engine; the balance weight (5) is matched with the rotary inertia of other parts of the engine by means of the coordination of the rotary inertia of the balance weight and the rotary inertia of other parts of the engine, so that the effect of neutralizing vibration caused by the rotary unbalanced mass of the engine is realized; in order to avoid the influence of the balance weight (5) on the magnetic field of the magnetic pole (4), the balance weight (5) is made of non-magnetic material;
the engine rear end cover (1) is used as one of two side end covers of the engine power generation integrated system, has the functions of accommodating a rotor and forming a combustion chamber in the engine, and also has the important function of accommodating a balance weight (5); expanding the shell structure of the engine rear end cover (1) coating the balance weight (5) to a state that a space for installing the coil rack (3) is reserved in the engine rear end cover (1);
the magnetic poles (4) are uniformly distributed along the circumferential direction of the balancing weight (5) and used as a rotor in an engine power generation integrated system, namely, the magnetic poles (4) and the balancing weight (5) are integrated into a whole to form the magnetic pole balancing weight, and in order to realize the vibration caused by the rotation unbalanced mass of the engine and the magnetic pole balancing weight, the overall mass center position and the eccentric mass of the balancing weight (5) before improvement are required to be ensured not to be changed; the magnetic pole balancing weight performs rotary motion in the rear end cover (1) of the engine; the rear end cover (1) of the engine plays a role in protecting the shell of the magnetic pole balance weight; a coil winding (2) is wound on the coil frame (3), the coil winding (2) is formed by connecting a plurality of small coils in series, and the number of the small coils is consistent with that of the magnetic poles (4); the direction of the single small coil winding axis is consistent with the diameter direction of the magnetic pole balance weight (5); the coil winding (2), the coil frame (3) and the engine rear end cover (1) form a stator in the engine power generation integrated system; the output end of the coil winding (2) penetrates through the rear end cover (1) of the engine and is combined with a rectifier (6) outside the engine to output direct current outwards.
2. A small rotary engine power generation integrated system as defined in claim 1, wherein: in order to avoid the influence of a common iron-based material on a magnetic field and reduce the mass, the rear end cover (1) of the engine is made of an aluminum alloy material.
3. A small rotary engine power generation integrated system as defined in claim 1, wherein: the working method is that when the engine runs normally, the magnetic pole balance weight (5) rotates along with the eccentric shaft of the engine, and the magnetic field generated by the magnetic poles (4) on the circumference of the magnetic pole balance weight (5) also rotates along with the magnetic pole balance weight; a plurality of small power generation coils fixed on a rear end cover (1) of the rotor engine lead to periodic change of magnetic flux due to the change of a magnetic field penetrating through the small power generation coils, so that induced electromotive force is generated, and periodic alternating current is emitted outwards; all the small coils are connected in series to transmit the alternating current; a rectifier (6) is connected to the outside of the engine, so that alternating current generated by the coil winding (2) is regulated into direct current, electric energy generated by the engine is stored in a battery, the power generation integration design of the engine is realized, and the power generation function of a small engine is met.
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| CN201810566554.6A CN108869025B (en) | 2018-06-05 | 2018-06-05 | Small-sized rotor engine power generation integrated system and working method |
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| CN201810566554.6A CN108869025B (en) | 2018-06-05 | 2018-06-05 | Small-sized rotor engine power generation integrated system and working method |
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| CN108869025B true CN108869025B (en) | 2020-11-17 |
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| JP2010207046A (en) * | 2009-03-06 | 2010-09-16 | Nisca Corp | Generator and power generation system with the same |
| CN201705458U (en) * | 2010-05-27 | 2011-01-12 | 中国南方航空工业(集团)有限公司 | Wankel engine and balance device thereof |
| CN102434274A (en) * | 2011-11-03 | 2012-05-02 | 中国南方航空工业(集团)有限公司 | Dynamic balance system and method for triangle rotor engine |
| CN103280937A (en) * | 2013-06-03 | 2013-09-04 | 江苏星光发电设备有限公司 | Generator rotor coil winding mechanism |
| CN106411087A (en) * | 2016-10-31 | 2017-02-15 | 江苏大学 | Triangle rotor power generation system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3964302B2 (en) * | 2002-10-15 | 2007-08-22 | 三菱電機株式会社 | Rotating electrical machine rotor |
| CN202228179U (en) * | 2011-04-01 | 2012-05-23 | 湖南华强电气有限公司 | Automobile engine |
| CN104653287B (en) * | 2013-11-22 | 2018-05-08 | 比亚迪股份有限公司 | Engine and there is its vehicle |
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2018
- 2018-06-05 CN CN201810566554.6A patent/CN108869025B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010207046A (en) * | 2009-03-06 | 2010-09-16 | Nisca Corp | Generator and power generation system with the same |
| CN201705458U (en) * | 2010-05-27 | 2011-01-12 | 中国南方航空工业(集团)有限公司 | Wankel engine and balance device thereof |
| CN102434274A (en) * | 2011-11-03 | 2012-05-02 | 中国南方航空工业(集团)有限公司 | Dynamic balance system and method for triangle rotor engine |
| CN103280937A (en) * | 2013-06-03 | 2013-09-04 | 江苏星光发电设备有限公司 | Generator rotor coil winding mechanism |
| CN106411087A (en) * | 2016-10-31 | 2017-02-15 | 江苏大学 | Triangle rotor power generation system |
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