CN112762141A - Multi-gap ignition device - Google Patents

Multi-gap ignition device Download PDF

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Publication number
CN112762141A
CN112762141A CN202011635466.0A CN202011635466A CN112762141A CN 112762141 A CN112762141 A CN 112762141A CN 202011635466 A CN202011635466 A CN 202011635466A CN 112762141 A CN112762141 A CN 112762141A
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CN
China
Prior art keywords
flywheel
distance
trigger
trigger coil
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011635466.0A
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Chinese (zh)
Inventor
川岛秀夫
潘杰
郑梅君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Fenglong Electrical Machinery Co ltd
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Zhejiang Fenglong Electrical Machinery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Zhejiang Fenglong Electrical Machinery Co ltd filed Critical Zhejiang Fenglong Electrical Machinery Co ltd
Priority to CN202011635466.0A priority Critical patent/CN112762141A/en
Publication of CN112762141A publication Critical patent/CN112762141A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/02—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage the generator rotor being characterised by forming part of the engine flywheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/08—Layout of circuits

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

The present application further provides a multi-gap ignition device comprising: the magnetic core comprises a trigger coil, a magnetic core and a flywheel, wherein the trigger coil is arranged around the magnet; the trigger coil is connected to an ignition circuit to output an ignition signal; the magnetic core is made of a magnetic material, and the flywheel is at least partially made of a magnetic sensitive material; the distance of the outer contour of the flywheel from the trigger coil defines a gap distance, the outer contour of the flywheel being configured with at least three distinct gap distances. The present application is beneficial in providing a multiple gap ignition device with improved flywheel design that reduces the difficulty of ignition control.

Description

Multi-gap ignition device
Technical Field
The present application relates to an ignition device, and more particularly, to a multi-gap ignition device.
Background
As shown in fig. 1, the principle of the conventional ignition device is that a magnetic flux circuit 4 formed by a magnet 2 of a trigger coil 1 having magnetic steel at the center is formed by a flywheel 3 in proximity to the trigger coil 1 as shown in fig. 2. When the flywheel 3 rotates, if the gap between the trigger coil 1 and the flywheel 3 is constant, the magnetic resistance of the magnetic flux circuit 4 does not change, and the magnetic flux passing through the center of the trigger coil 1 does not change, so that no voltage occurs at both ends of the trigger coil 1. As shown in fig. 3, when the interval between the trigger coil 1 and the flywheel 3 changes, the magnetic resistance of the magnetic flux circuit 4 also changes at the time of the change in the interval, and therefore the magnetic flux passing through the center of the trigger coil 1 also changes, and a voltage is generated across both ends of the trigger coil 1.
Conventionally, the circumferential surface of the flywheel 3 is provided with a concave surface 5 as shown in fig. 3, or a convex shape 6 is provided to vary the interval between the trigger coil 1 and the flywheel 3 as shown in fig. 4. In this case, as shown in fig. 5, the voltages of the trigger signals 7 and 7' having different polarities are generated by enlarging or reducing the interval between the concave shapes 5 and the convex shapes 6.
The voltage values of the trigger signals 7 and 7' are proportional to the rotational speed ω t of the flywheel. As shown in fig. 6 and 7, when threshold 10 of switch terminal T1 of ignition circuit 8 exceeds trigger signal 7 or 7', ignition is performed.
In addition, since the absolute values of the trigger signals 7 and 7 'are the same, when different trigger signals 7 and 7' of the generated angle are used in the ignition angle advance loop of the ignition device, 2 different trigger loops are needed, and the ignition angle needs to be controlled by the MCU. This undoubtedly increases the difficulty of control.
Disclosure of Invention
To address the deficiencies of the prior art, the present application provides a multiple gap ignition device comprising: the magnetic core comprises a trigger coil, a magnetic core and a flywheel, wherein the trigger coil is arranged around the magnet; the trigger coil is connected to an ignition circuit to output an ignition signal; the flywheel is configured with a trigger structure so that when the flywheel rotates, the magnetic flux of the trigger coil is changed by the trigger structure to generate the ignition signal; the magnetic core is made of a magnetic material, and the flywheel is at least partially made of a magnetic sensitive material; the triggering structure of the flywheel comprises: a first contour point, the distance from the trigger coil is a first distance; and the second contour point is away from the trigger coil by a second distance different from the first distance.
Further, the flywheel is configured such that each contour point is at the same third distance from the trigger coil, except for the trigger structure.
Further, the third distance is less than the first distance and the second distance.
Further, the trigger structure includes:
the distance between the bottom edge of the first notch and the trigger coil is a first distance;
and the distances from the bottom edges of the second notches to the trigger coil are all second distances.
Further, the flywheel is contoured as a portion of a circle, except for the trigger structure.
Furthermore, the bottom edge of the first notch is an arc and is concentrically arranged with the other outer contours of the flywheel.
Furthermore, the bottom edge of the second notch is an arc and is concentrically arranged with the other outer contours of the flywheel.
Further, the trigger structure includes: and the distance between the bottom edge of the notch and the trigger coil is continuously changed so that the first contour point and the second contour point are formed on the bottom edge of the variable notch.
Further, the bottom edge of the variable notch is an arc line.
As another aspect of the present application, there is also provided a multi-gap ignition device comprising: the magnetic core comprises a trigger coil, a magnetic core and a flywheel, wherein the trigger coil is arranged around the magnet; the trigger coil is connected to an ignition circuit to output an ignition signal; the magnetic core is made of a magnetic material, and the flywheel is at least partially made of a magnetic sensitive material; the distance of the outer contour of the flywheel from the trigger coil defines a gap distance, the outer contour of the flywheel being configured with at least three distinct gap distances.
The application has the advantages that: a multi-gap ignition device is provided with an improved flywheel structure so as to reduce the difficulty of ignition control.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic diagram of the flywheel and trigger coil ignition principle;
FIG. 2 is an enlarged partial schematic view of the structure shown in FIG. 1;
FIG. 3 is a schematic diagram of a flywheel in a groove manner in the prior art;
FIG. 4 is a schematic view of a prior art flywheel in a convex manner;
FIG. 5 is a schematic diagram of the signal output by the trigger coil in the prior art;
FIG. 6 is a circuit diagram of a prior art ignition circuit;
FIG. 7 is a schematic diagram of control based on the signals output from FIG. 5;
FIG. 8 is a schematic structural diagram of a flywheel according to an embodiment of the present application;
FIG. 9 is a schematic diagram of the voltage signal output by the trigger coil of the flywheel of FIG. 8 as it rotates;
FIG. 10 is a schematic illustration of ignition based on flywheel speed;
FIG. 11 is a schematic structural diagram of a flywheel according to another embodiment of the present application;
FIG. 12 is a schematic diagram of the voltage signal output by the trigger coil of the flywheel of FIG. 11 as it rotates;
FIG. 13 is a schematic structural view of a flywheel according to a third embodiment of the present application;
fig. 14 is a schematic structural view of a flywheel according to a fourth embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 4, the present application provides a multi-gap ignition device including: the magnetic core comprises a trigger coil, a magnetic core and a flywheel, wherein the trigger coil is arranged around a magnet; the trigger coil is connected to an ignition circuit to output an ignition signal; the flywheel is constructed to have a trigger structure so that when the flywheel rotates, the magnetic flux of the trigger coil is changed by the trigger structure to generate an ignition signal; the magnetic core is made of magnetic material, and the flywheel is at least partially made of magnetic sensitive material. The above parts adopt the same scheme as the prior art, and are not described herein.
The present application is improved in that, as shown in fig. 8 and 11, the trigger structure of the flywheel includes: the first contour point is away from the trigger coil by a first distance; and the second contour point is away from the trigger coil by a second distance different from the first distance. That is, the outer contour of the flywheel is defined as a gap distance from the trigger coil, and the outer contour of the flywheel is configured to have at least three distinct gap distances.
In a further embodiment, the flywheel is designed such that the contour points are at the same third distance from the trigger coil, except for the trigger structure. And the third distance is less than the first distance and the second distance.
Referring to fig. 8, as an embodiment of the present application, the triggering structure of the flywheel 100 includes a first notch 101 and a second notch 102, wherein the bottom side 101a of the first notch 101 is a first distance from the triggering coil, and the bottom side 102a of the second notch 102 is a second distance from the triggering coil. In this case, the first contour point is any point on the bottom side 101a of the first notch 101, and the second contour point is any point on the bottom side 102a of the second notch 102.
Specifically, the flywheel 100 is contoured as a portion of a circle, except for the trigger structure. The bottom side 101 of the first notch 101 is a circular arc and is concentrically arranged with the other outer contour of the flywheel 100. The bottom edge 102 of the second notch 102 is a circular arc and is concentrically arranged with the other outer contour of the flywheel 100.
As shown in fig. 9, with the scheme shown in fig. 8, trigger signals with different voltage values can be generated at the same flywheel rotation speed. Based on such signal characteristics, a single trigger circuit of fig. 6 may be used, or the ignition angle may be changed by the rotation speed corresponding to the voltage signal as shown in fig. 10. With the solution shown in fig. 8, the generated trigger signals are only the difference between positive and negative voltages, and the voltage amplitudes are the same.
To further highlight the specificity of the signal, referring to fig. 11, as another embodiment of the present application, the triggering structure of the flywheel 200 includes a variable notch 201, and a distance from a bottom side 201a of the variable notch 201 to the triggering coil is continuously varied such that a first contour point and a second contour point are formed on the bottom side 201a of the variable notch 201.
More specifically, the bottom side 201a of the variable notch 201 is an arc.
With the scheme shown in fig. 11, the trigger signals are shown in fig. 12, and the amplitudes of the trigger signals are also different, so that the control is more convenient to implement.
Referring to fig. 13 and 14, as an extension of the present application, corresponding to the solutions shown in fig. 8 and 11, the triggering structure may be implemented as a protrusion.
As a further technical development, it is of course possible to combine the solutions of fig. 8 and 11, i.e. the flywheel has a combination of both the first or second notch and the variable notch.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A multi-gap ignition device comprising: the magnetic core comprises a trigger coil, a magnetic core and a flywheel, wherein the trigger coil is arranged around the magnet; the trigger coil is connected to an ignition circuit to output an ignition signal; the flywheel is configured with a trigger structure so that when the flywheel rotates, the magnetic flux of the trigger coil is changed by the trigger structure to generate the ignition signal; the magnetic core is made of a magnetic material, and the flywheel is at least partially made of a magnetic sensitive material;
the method is characterized in that:
the triggering structure of the flywheel comprises:
a first contour point, the distance from the trigger coil is a first distance;
and the second contour point is away from the trigger coil by a second distance different from the first distance.
2. The multi-gap ignition device of claim 1, wherein:
the flywheel is configured such that, in addition to the triggering structure, the contour points are at the same third distance from the triggering coil.
3. The multi-gap ignition device of claim 2, wherein:
the third distance is less than the first distance and the second distance.
4. The multi-gap ignition device of claim 3, wherein:
the trigger structure includes:
the distance between the bottom edge of the first notch and the trigger coil is a first distance;
and the distances from the bottom edges of the second notches to the trigger coil are all second distances.
5. The multi-gap ignition device of claim 3, wherein:
the flywheel is configured as a circular segment, except for the trigger structure.
6. The multi-gap ignition device of claim 5, wherein:
the bottom edge of the first notch is an arc and is concentrically arranged with the other circles of the outer contour of the flywheel.
7. The multi-gap ignition device of claim 6, wherein:
the bottom edge of the second notch is an arc and is concentrically arranged with the other outer contours of the flywheel.
8. The multi-gap ignition device of claim 3, wherein:
the trigger structure includes:
and the distance between the bottom edge of the notch and the trigger coil is continuously changed so that the first contour point and the second contour point are formed on the bottom edge of the variable notch.
9. The multi-gap ignition device of claim 8, wherein:
the bottom edge of the variable notch is an arc line.
10. A multi-gap ignition device comprising: the magnetic core comprises a trigger coil, a magnetic core and a flywheel, wherein the trigger coil is arranged around the magnet; the trigger coil is connected to an ignition circuit to output an ignition signal; the magnetic core is made of a magnetic material, and the flywheel is at least partially made of a magnetic sensitive material;
the method is characterized in that: the distance of the outer contour of the flywheel from the trigger coil defines a gap distance, the outer contour of the flywheel being configured with at least three distinct gap distances.
CN202011635466.0A 2020-12-31 2020-12-31 Multi-gap ignition device Pending CN112762141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011635466.0A CN112762141A (en) 2020-12-31 2020-12-31 Multi-gap ignition device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011635466.0A CN112762141A (en) 2020-12-31 2020-12-31 Multi-gap ignition device

Publications (1)

Publication Number Publication Date
CN112762141A true CN112762141A (en) 2021-05-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2222248Y (en) * 1994-12-07 1996-03-13 天津天利航空机电有限公司 Rotator for magneto-electric motor of motor cycle
CN2302348Y (en) * 1997-03-11 1998-12-30 林浔俊 Electronic ignitor for vehicle
US20020185108A1 (en) * 2001-06-06 2002-12-12 Fewell Roy J. Discharge ignition apparatus for internal combustion engine having automatic spark advance
JP2004236382A (en) * 2003-01-28 2004-08-19 Kokusan Denki Co Ltd Multipolar magnet generator for internal combustion engine and ignition unit for capacitor discharge type internal combustion engine using this magnet generator
CN203335311U (en) * 2013-06-28 2013-12-11 力帆实业(集团)股份有限公司 Trigger signal board for igniting of hybrid engine
CN207830025U (en) * 2017-12-29 2018-09-07 中山市松信电子有限公司 Adaptive motorcycle ignition circuit
CN111287875A (en) * 2020-02-25 2020-06-16 江门市大长江集团有限公司 Engine reverse ignition suppression method and device, computer equipment and storage medium

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2222248Y (en) * 1994-12-07 1996-03-13 天津天利航空机电有限公司 Rotator for magneto-electric motor of motor cycle
CN2302348Y (en) * 1997-03-11 1998-12-30 林浔俊 Electronic ignitor for vehicle
US20020185108A1 (en) * 2001-06-06 2002-12-12 Fewell Roy J. Discharge ignition apparatus for internal combustion engine having automatic spark advance
JP2004236382A (en) * 2003-01-28 2004-08-19 Kokusan Denki Co Ltd Multipolar magnet generator for internal combustion engine and ignition unit for capacitor discharge type internal combustion engine using this magnet generator
CN203335311U (en) * 2013-06-28 2013-12-11 力帆实业(集团)股份有限公司 Trigger signal board for igniting of hybrid engine
CN207830025U (en) * 2017-12-29 2018-09-07 中山市松信电子有限公司 Adaptive motorcycle ignition circuit
CN111287875A (en) * 2020-02-25 2020-06-16 江门市大长江集团有限公司 Engine reverse ignition suppression method and device, computer equipment and storage medium

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Application publication date: 20210507

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