CN205638760U - Mini gasoline engine - Google Patents
Mini gasoline engine Download PDFInfo
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- CN205638760U CN205638760U CN201620035903.8U CN201620035903U CN205638760U CN 205638760 U CN205638760 U CN 205638760U CN 201620035903 U CN201620035903 U CN 201620035903U CN 205638760 U CN205638760 U CN 205638760U
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- miniature gasoline
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- ratchet
- position sensor
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Abstract
The utility model discloses a mini gasoline engine, it includes: the sensing element of setting on flywheel or organism, set up on organism or flywheel and through sensing element obtain flywheel rotational speed information position sensor, and the position sensor electrical property links to each other and the motor of the controller that links to each other of ignition coil, the reduction unit who drives the crankshaft rotation when starting, the work of drive reduction unit and set up between bent axle and motor and the separation and reunion unit of folk prescription to transmitting motor power. The utility model is simple in operation it is convenient, even still can realize starting, improve the whole efficiency of system under the lower condition of start stage rotational speed, in addition can accurate control ignition angle and energy, adjust ignition angle in good time, make gasoline engine work more stable, the use that makes the user is experienced better, does benefit to the popularization and the popularization of product.
Description
Technical field
This utility model relates to a kind of miniature gasoline engine.
Background technology
Miniature gasoline engine is usually used in afforestation industry, and its electronic ignition system is one of them critical system, at most suitable ignition angle, sends enough ignition energies, and the gasoline engine of portable gasoline instrument can be allowed to operate steadily, and improves efficiency.The electronic ignition system commonly used at present includes magneto, lighter and the Magnet being arranged on flywheel, utilizes the interaction of Magnet and magneto to power, promotes lighter to work.But this electronic ignition system has the disadvantage in that its voltage is directly proportional to rotating speed, when rotating ratio is relatively low, the energy of igniting also ratio is relatively low.Particularly in start-up phase, rotating speed is relatively low, and ignition energy can not produce the big spark now needed, and causes gasoline engine to be difficult to start, affects user and use.
Utility model content
This utility model purpose is: a kind of miniature gasoline engine of offer, simple to operation, even if still can realize starting under conditions of start-up phase rotating speed is relatively low, the experience making user is more preferable, beneficially universal the and popularization of product.
nullFirst technical scheme of the present utility model is: a kind of miniature gasoline engine，It includes body、The flywheel being arranged on body、The cylinder being arranged in body、Piston in the cylinder is set、Bent axle with gas piston linkage、Ignition coil、And export, with ignition coil, the spark plug being connected，It is characterized in that this miniature gasoline engine also includes: DC source、It is arranged on the sensing element on flywheel or body、It is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information、The controller being electrical connected with position sensor and be connected with ignition coil、The deceleration unit that during startup, band dynamic crankshaft rotates、Drive the motor of deceleration unit work、And be arranged between bent axle and motor and the clutch unit of one direction transmission motor power，Wherein deceleration unit is stage-geared，Controller is electrical connected with DC source，And controller controls ignition energy and ignition advance angle by position sensor.
On the basis of the first technical scheme, farther include following attached technical scheme:
Described sensing element is arranged on flywheel and is Magnet, and number is at least two, and position sensor is then arranged on body and number is single.
Described sensing element includes the phase magnet for initial alignment and the measurement Magnet for tachometric survey.
It also includes the wiring board being arranged on body and being electrical connected with position sensor and fix, and described sensing element is arranged on the circumference of flywheel, and wiring board is then positioned at the side of flywheel.
Described sensing element is Magnet and number is single, and position sensor is two or more.
It also includes the temperature sensor being connected with controller, and described DC source is lithium battery, and its middle controller is by position sensor and combines temperature sensor control ignition energy and ignition advance angle.
Described deceleration unit at least includes the duplicate gear coordinated with motor output and the travelling gear coordinated with duplicate gear transmission.
It also includes being arranged in deceleration unit the energy storage device that the kinetic energy of motor carries out store and release energy to bent axle and providing the power supply of power to motor, and described energy storage device is arranged on inside travelling gear.
Described energy storage device is whirlpool spring, and the central coaxial of its center and travelling gear.
Described power supply is detachable rechargeable battery bag, it is highly preferred that power supply and DC source are same battery bag.
It also includes the clutch unit being arranged between bent axle and deceleration unit, described clutch unit includes the driven disc being set on bent axle and contacts with driven disc or separate and by the ratchet of driven by motor, wherein driven disc is provided with a pair ratchet, ratchet be then provided with coordinate accordingly with ratchet and one direction to contact a pair of force protruding.
Described ratchet is provided with ratchet chamber, is positioned at center, ratchet chamber and fixture co-axially fixed with travelling gear and the pad being set on fixture, and driven disc also includes a pair torsion spring being set on corresponding ratchet.
Described ratchet includes the contact surface being positioned at end, and projection is provided with the face that coordinates with contact surface abutting contact, and wherein contact surface and cooperation face are plane.
Described clutch unit includes the unilateral bearing being set on bent axle and contacts with unilateral bearing or separate and by the ratchet of driven by motor.
Second technical scheme of the present utility model is: a kind of miniature gasoline engine, it includes body, the flywheel being arranged on body, the cylinder being arranged in body, piston in the cylinder is set, bent axle with gas piston linkage, ignition coil, and export, with ignition coil, the spark plug being connected, it is characterized in that this miniature gasoline engine also includes: DC source, it is arranged on the sensing element on flywheel or body, it is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information, the controller being electrical connected with position sensor and be connected with ignition coil, the deceleration unit that during startup, band dynamic crankshaft rotates, and drive the motor of deceleration unit work, its middle controller is electrical connected with DC source, and controller controls ignition energy and ignition advance angle by position sensor.
On the basis of the second technical scheme, farther include following attached technical scheme:
Described sensing element is arranged on flywheel and is Magnet, and number is at least two, and position sensor is then arranged on body and number is single.
Described sensing element includes the phase magnet for initial alignment and the measurement Magnet for tachometric survey.
It also includes the wiring board being arranged on body and being electrical connected with position sensor and fix, and described sensing element is arranged on the circumference of flywheel, and wiring board is then positioned at the side of flywheel.
Described sensing element is Magnet and number is single, and position sensor is two or more.
It also includes the temperature sensor being connected with controller, and described DC source is lithium battery, and its middle controller is by position sensor and combines temperature sensor control ignition energy and ignition advance angle.
Described deceleration unit at least includes the duplicate gear coordinated with motor output and the travelling gear coordinated with duplicate gear transmission.
It also includes being arranged in deceleration unit the energy storage device that the kinetic energy of motor carries out store and release energy to bent axle and providing the power supply of power to motor, and described energy storage device is arranged on inside travelling gear.
Described energy storage device is whirlpool spring, and the central coaxial of its center and travelling gear.
Described power supply is detachable lithium battery.
Described clutch unit includes the driven disc being set on bent axle and contacts with driven disc or separate and by the ratchet of driven by motor, and wherein driven disc is provided with a pair ratchet, ratchet be then provided with coordinate accordingly with ratchet and one direction to contact a pair of force protruding.
Described ratchet is provided with ratchet chamber, is positioned at center, ratchet chamber and fixture co-axially fixed with travelling gear and the pad being set on fixture, and driven disc also includes a pair torsion spring being set on corresponding ratchet.
Described ratchet includes the contact surface being positioned at end, and projection is provided with the face that coordinates with contact surface abutting contact, and wherein contact surface and cooperation face are plane.
Described clutch unit includes the unilateral bearing being set on bent axle and contacts with unilateral bearing or separate and by the ratchet of driven by motor.
null3rd technical scheme of the present utility model is: a kind of miniature gasoline engine，It includes body、The flywheel being arranged on body、The cylinder being arranged in body、Piston in the cylinder is set、Bent axle with gas piston linkage、Ignition coil、And export, with ignition coil, the spark plug being connected，It is characterized in that this miniature gasoline engine also includes: DC source、It is arranged on the sensing element on flywheel or body、It is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information、The controller being electrical connected with position sensor and be connected with ignition coil、The deceleration unit that during startup, band dynamic crankshaft rotates、And drive the motor of deceleration unit work，Wherein said deceleration unit at least includes exporting, with motor, the duplicate gear coordinated、And the travelling gear coordinated with duplicate gear transmission，And controller is electrical connected with DC source，And controller controls ignition energy and ignition advance angle.
null4th technical scheme of the present utility model is: a kind of miniature gasoline engine，It includes body、The flywheel being arranged on body、The cylinder being arranged in body、Piston in the cylinder is set、Bent axle with gas piston linkage、Ignition coil、And export, with ignition coil, the spark plug being connected，This miniature gasoline engine also includes: DC source、It is arranged on the sensing element on flywheel or body、It is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information、The controller being electrical connected with position sensor and be connected with ignition coil、The deceleration unit that during startup, band dynamic crankshaft rotates、Drive the motor of deceleration unit work、And be arranged between bent axle and motor and the clutch unit of one direction transmission motor power，Wherein deceleration unit is stage-geared，Controller is electrical connected with DC source，And controller controls ignition energy and ignition advance angle by position sensor，Wherein flywheel is plastic blade.
This utility model advantage is:
This utility model alleviates the weight of flywheel blade so that the less consumption of power that gasoline engine sends, on flywheel blade, improves the whole efficiency of system, and by using the controller of single-chip microcomputer design, can be with accurate control points fire angle and energy；When the load of gasoline engine drastically changes, controller can detect the change of rotating speed by position sensor, adjust ignition angle in good time, make gasoline engine work more stable, the most simple to operation, even if still can realize starting under conditions of start-up phase rotating speed is relatively low, the experience making user is more preferable, beneficially universal the and popularization of product.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Fig. 1 is traditional ignition system performance diagram；
Fig. 2 is three-dimensional structure diagram of the present utility model, and wherein partial shell is removed；
Fig. 3 is the sectional view of Fig. 2；
Fig. 4 is circuit function block diagram of the present utility model；
Fig. 5 is the sectional view in this utility model under another visual angle；
Fig. 6 is the axonometric chart of self closing door controlling organization in this utility model；
Fig. 7 is the exploded view of self closing door controlling organization in this utility model；
Fig. 8 is local structural graph of the present utility model；
Fig. 9 is the front view starting motor and deceleration unit in this utility model；
Figure 10 is the Fig. 9 sectional view along line A-A；
Figure 11 is ratchet and the structure chart of driven disc in this utility model；
Figure 12 is travelling gear and the structure chart of energy storage device in this utility model；
Figure 13 is ignition system performance diagram of the present utility model；
Figure 14 is the circuit diagram of this utility model middle controller；
Figure 15 is the circuit diagram of power module in this utility model；
Figure 16 is the circuit diagram of this utility model mesohigh ignition mechanism；
Figure 17 is the circuit diagram of air door, throttle control mechanism in this utility model；
Detailed description of the invention
Embodiment: as in Figure 2-4, this utility model provides the specific embodiment of a kind of portable gasoline instrument, it includes body 10, the cylinder 20 being arranged on body 10 and by the flywheel 30 of hand traction or electric traction, being arranged in body 10, the carburetor 1 being arranged in body 10, be arranged on carburetor 1 and have the inlet channel of air inlet 11, electronic ignition mechanism, self closing door controlling organization, energy storage device, can in cylinder 20 reciprocating piston 60 and interlocking with piston 60 and bent axle 62 that flywheel driven 30 rotates.
Electronic ignition mechanism includes ignition coil, the spark plug 40, the sensing element being arranged on flywheel 30 or body 10 that are connected with ignition coil output, is arranged on body 10 or flywheel 30 and passes through the position sensor 50 that sensing element obtains flywheel 30 rotary speed information and the controller being electrical connected with position sensor 50 and being connected with ignition coil.In the present embodiment, sensing element is arranged on flywheel 30 and for Magnet, and number is at least two, and position sensor 50 is then arranged on body 10 and number is single, and position sensor 50 is preferably Hall element, it is also possible to for photoelectric cell or other elements.Combuster 22 in cylinder 20, wherein spark plug 40 is fixed on cylinder 20 and is at least partially extend in combustor 22.
Preferably, sensing element includes the phase magnet 32 for initial alignment and the measurement Magnet 34 for tachometric survey, and phase magnet 32 is also known as top dead-centre phase magnet.
Preferably, electronic ignition mechanism also includes the wiring board 52 being arranged on body 10 and being electrical connected with position sensor 50 and fix, sensing element is arranged on the circumference of flywheel 30, wiring board 52 is then positioned at the side of flywheel 30 and keeps gap with flywheel 30, and is connected with panel 92 by wire 91.
Preferably, sensing element is Magnet and number is single, and position sensor is two or more.
Preferably, as shown in Figure 4, the circuit of the present embodiment also includes the DC power supply 70 providing electric energy to controller, it is connected with DC power supply 70 and for the power module of blood pressure lowering, it is connected with power module and controls the controller that power unit operates, and the temperature sensor being connected with controller, the airdoor control mechanism being connected with controller, the throttle control mechanism being connected with controller, be connected with controller electrically activates controlling organization, the high-tension ignition mechanism being connected with controller, the velocity feedback mechanism being connected with controller and be connected with Hall element, and the temperature sensor being connected with controller.High-tension ignition mechanism includes the element such as ignition coil, spark plug.Master chip circuit is had in its middle controller, its circuit structure is with specific reference to Figure 14, power module internal circuit is with specific reference to shown in Figure 15, and the circuit structure of high-tension ignition mechanism is with specific reference to shown in Figure 16, air door, throttle control mechanism circuit structure with specific reference to shown in Figure 17.DC power supply 70 is preferably detachable rechargeable battery, more preferably lithium battery bag.
Summary embodiment, this utility model uses lithium battery as DC source, it is used for detecting Speed of Reaction Wheels to determine ignition angle by position sensor, and temperature sensor detection Current Temperatures, DC source is become high pressure through ignition coil from low pressure by controller.Controller is according to the comprehensive operating mode such as current rotating speed, working time, temperature, calculate the current desired ignition angle wanted and ignition energy, then electronic ignition system uses high voltage package to discharge the electric spark of corresponding energy by the angle that controller internal calculation goes out, the gas mixture in cylinder is made to burn, promote reciprocating motion of the pistons so that gasoline engine is in preferable duty.Thus can realize igniting under extremely low rotating speed, detect current temperature by temperature sensor, when temperature is on the low side, improve ignition energy.Controller can control ignition angle and energy simultaneously, light a fire when making concentration in cylinder the highest, spark is maximum so that gasoline engine starting is relatively easy, more preferably operates, in hgher efficiency, compared with existing magneto technical scheme, this utility model need not install the Magnet module of heaviness on the blade of flywheel, can alleviate the weight of blade, the less consumption of power that gasoline engine is sent, on blade, improves the whole efficiency of system.Negotiation speed detection, can control in optimal state by the ignition angle under friction speed simultaneously, improves the gasoline engine systems work efficiency at all speed states, and by using the controller of single-chip microcomputer design, can be with accurate control points fire angle and energy.When the load of gasoline engine drastically changes, flywheel position that controller can be measured by position sensor and the rotating speed of flywheel, by the control of programmed algorithm, adjust ignition angle in good time, it is derived from the relation of time of ignition, ignition energy and rotating speed as shown in figure 13, makes gasoline engine work more stable.
As illustrated in figs. 5-7, self closing door controlling organization includes rotating shaft 12, is arranged in rotating shaft 12 and opens or closes the choke 2 of carburetor 1 air inlet 11, choke 2, power unit 5 are in transmission connection with power unit 5 gear unit and controller, wherein gear unit connects with rotating shaft 12, and controller is provided with the drives module driving power unit 5 motion to control the cut out of choke 2, choke 2 is and rotating shaft 12 coaxial rotating in this self closing door controlling organization, it would however also be possible to employ the form moved back and forth opens or closes to realize gas circuit.Rotating shaft 12 penetrates the inlet channel of carburetor 1 and fixes with choke 2 or removably connect so that choke 2 and rotating shaft 12 coaxial rotating, choke 2 is positioned in inlet channel and can open air inlet 11, in order to air enters in cavity.Carburetor 1 still further comprise choke 2 is carried out self-locking from lock unit and release choke 2 self-locking solution lock unit, and be prior art from lock unit, and solve lock unit and can carry out the unblock from lock unit by the way of open out, also it is prior art, therefore it will not go into details.
What gear unit included being set in rotating shaft 12 matches motion and export the actuating cam 4 being connected with power unit 5 by moving cam 3 with by moving cam 3.Actuating cam 4 is provided with the active axis hole 41 being set on power unit 5 outfan and the projection 43 coordinated with by moving cam 3, and the bearing of trend of projection 43 is parallel with the axial direction of rotating shaft 12.Be there is the passive axis hole 31 being set in rotating shaft 12 by moving cam 3.In the present embodiment, gear unit drives choke 2 to move by rotating shaft 12 indirectly, it is also possible to directly drive choke 2 to move.It is main by cam structure that this utility model is used, simple and reliable, low cost, it would however also be possible to employ belt, chain or hinge or the kind of drive of swing rod form, realizes this utility model purpose too.
Power unit 5 is motor or motor and the combination of reduction box or electromagnetism or pneumatic.Wherein motor be can the direct current of rotating or alternating current generator, the present embodiment is preferably DC servo motor, to realize, structure is little, moment of torsion big and PLC technology.
Thus choke 2 and being fixed in same rotating shaft 12 by moving cam 3 in this self closing door controlling organization, and can rotate with rotating shaft 12, and rotating shaft 12 is the most rotatable owing to being arranged on the inlet channel within carburetor 1, as long as stirring by moving cam 3, and choke 2 can be driven to rotate by rotating shaft 12, thus can regulate intake, when by choke 2 being closed by moving cam 3, choke 2 is made to be closed all the time owing to having on carburetor 1 from lock unit, when carburetor 1 open out, above-mentioned general from lock unit unlocks, and makes choke 2 open.Simultaneously power unit 5 use can rotating controllable motor, drive actuating cam 4 to rotate, then driven by actuating cam 4 and rotated by moving cam 3 thus close choke 2.When gasoline engine to be started, motor rotates forward and drives actuating cam 4 to drive by moving cam 3, makes choke 2 close, once choke 2 is closed and is put in place, motor reversal resets, and motor is in transmission connection with gear unit disengaging, and choke 2 is remaining at closed mode under the effect of lock unit.And once after gasoline engine starting, after carburetor 1 open out, unlock from lock unit, choke 2 then can return to opening, is achieved in the automatization of whole process.
Carburetor 1 is positioned at the side of cylinder 20 and is positioned at the top of fuel tank 90, and carburetor 1 is connected with cylinder 20 by gas distribution channel 102.Cylinder 20 is provided with the combustor 22 introducing gas mixture and burning.
Self closing door controlling organization also includes being connected and carrying out the power module of blood pressure lowering process with power supply, be connected with power module and control the controller that power unit operates and the temperature sensor being connected with controller.Wherein power supply is preferably detachable rechargeable battery, more preferably lithium battery, and providing energy to power unit 5 simultaneously, controller is PLC, and controller at least includes the drives module being connected with motor, temperature sensing module and controls the angle module of actuating cam 4 anglec of rotation.Ambient temperature is measured from there through temperature sensor, once ambient temperature is less than preset value, on startup, fuel concentration in the fuel mixture that will suck in combustor strengthens, i.e. reduce the air capacity sucking carburetor, control motor rotation from there through controller and be automatically switched off choke, automatically turn on choke the most once again when gasoline engine normally works simultaneously, whole process is simple and convenient, may be implemented in the starting state automatically setting gasoline engine under various startup environment, reduce operator's intervention to gasoline engine starting when starting, alleviate the labor intensity of operator simultaneously.
As illustrated in figs. 8-12, the deceleration unit 14 that when this utility model farther includes to start, band dynamic crankshaft 62 rotates, it is arranged between bent axle 62 and deceleration unit 14 and the clutch unit of one direction transmission motor power, drive the startup motor 7 of deceleration unit 14 work, and provide the DC power supply 70 of power to starting motor 7, carry out storing and releasing energy to bent axle 62 during wherein energy storage device 8 is arranged on deceleration unit 14 and by the kinetic energy of motor, and flywheel 30 is arranged on bent axle 3 and coaxial rotating, wherein flywheel 30 and deceleration unit 14 are separately positioned on the two ends of bent axle 62.Start motor 7 and be preferably direct current generator, and be provided with output shaft 78 and the output gear 79 being set on output shaft 78.DC source 70 is preferably detachable lithium battery bag.
Shown in Fig. 9-10, deceleration unit 14 is stage-geared, at least includes the duplicate gear that the output gear 79 with motor coordinates and the travelling gear 144 coordinated with duplicate gear transmission.Duplicate gear includes the first gear 140 that the output gear 78 with motor engages and the second gear 142 being coaxially disposed with the first gear 140 and engaging with travelling gear 144.Wherein the diameter of the second gear 142 is more than the diameter of output gear 79, and less than the diameter of the first gear 140, the diameter of the first gear 140 is connected to a fixed by rotating shaft 1400 with the second gear 142 less than the diameter of travelling gear 144, the first gear 140 simultaneously.
As shown in figure 11, clutch unit includes the driven disc 16 being set on bent axle 62 and contacts with driven disc 16 or separate and by the ratchet 15 of driven by motor, driven disc 16 includes generally rectangular shaped disk body 160, a pair ratchet 162 being arranged on disk body 160 diagonal angle and is set in a pair torsion spring 164 on corresponding ratchet 162, wherein ratchet 162 includes the pawl axis 1620 sheathed by torsion spring 164 and is positioned at end and the contact surface 1622 away from pawl axis 1620, and disk body 160 has the partial arc face of pair of opposing.And ratchet 15 at least partly have arc and be provided with rounded ratchet chamber 150, cross section, be arranged on outside ratchet chamber 150 and coordinate accordingly with ratchet 162 and one direction contact force a pair projection 152, be positioned at center, ratchet chamber 150 and fixture co-axially fixed with travelling gear 144 154 and the pad 156 being set on fixture 154.Each protruding 152 be provided with contact surface 1622 abutting contact coordinate face 1520.Wherein contact surface 1622 and cooperation face 1520 are preferably all plane.Protruding 152 in the clockwise direction by coordinating contact surface 1622 abutting contact in face 1520 and ratchet 162, the most then because of at least part of arc of outer surface of projection 152, both cannot be against being then mutually disengaged contact.For reducing cost and shortening axial dimension, clutch unit can also include the unilateral bearing being set on bent axle and contacts with unilateral bearing or separate and by the ratchet of driven by motor, can realize this utility model purpose equally.
As shown in figure 12, energy storage device 8 is preferably provided at inside travelling gear 144, preferably whirlpool spring or torsion spring, and the central coaxial of its center and travelling gear 144, impact between each parts when energy storage device 8 can reduce startup, the service life of prolongation starter.This energy storage device 8 includes the inner 80 being positioned at inner side and is positioned at the outer end 82 in outside, and wherein realizing energy storage and release by multi-lay winding between inner 80 and outer end 82, wherein the space of multi-lay winding is collapsible and amplifies.Travelling gear 144 is then provided with and houses outer end 82 and be positioned at the accepting groove 1440 in outside and be positioned at accepting groove 1440 side and the grab 1442 with outer end 82 buckle.
During work, DC source 70 provides DC source to starting motor 7, start output shaft 78 high speed rotating of motor 7, output gear 79 is driven to rotate, the first gear 140 is promoted to rotate by gear engagement, and drive the second coaxial gear 142 to rotate accordingly, travelling gear 144 is driven to rotate again by gear engagement, rotation along with travelling gear 144, constantly apply pressure to energy storage device 8, the kinetic energy of motor is constantly stored by i.e. whirlpool spring, the elastic force that once whirlpool spring provides is more than the resistance of bent axle 62, whirlpool spring will be released energy to bent axle 62 by clutch unit, now promote one direction transmission owing to the contact surface 1622 of ratchet 162 abuts to the cooperation face 1520 of protruding 152, thus promote the rotation of bent axle 62, and realize gasoline engine electrically activate process.Once after gasoline engine starting, bent axle 62 is by high speed rotating, its centrifugal force will be thrown ratchet 162 away and oppress torsion spring 164, contact surface 1622 is mutually disengaged with cooperation face 1520 and contacts, thus ratchet 162 mutually disengages with protruding 152, thus ensureing that ratchet 15 is not impacted by the high speed rotating of driven disc 16, i.e. ratchet 15 keeps resting state, also ensures that deceleration unit 14 quits work.Thus this utility model power of motor requires little, simple and reliable for structure, with low cost, it is not necessary to Manual starting device, is reduced the impact between each parts when starting by energy storage device, extends the service life of starter.
Certainly above-described embodiment is only for illustrating technology of the present utility model design and feature, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations done according to the spirit of this utility model main technical schemes or modification, all should contain within protection domain of the present utility model.
Claims (30)
- null1. a miniature gasoline engine，It includes body、The flywheel being arranged on body、The cylinder being arranged in body、Piston in the cylinder is set、Bent axle with gas piston linkage、Ignition coil、And export, with ignition coil, the spark plug being connected，It is characterized in that this miniature gasoline engine also includes: DC source、It is arranged on the sensing element on flywheel or body、It is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information、The controller being electrical connected with position sensor and be connected with ignition coil、The deceleration unit that during startup, band dynamic crankshaft rotates、Drive the motor of deceleration unit work、And be arranged between bent axle and motor and the clutch unit of one direction transmission motor power，Wherein deceleration unit is stage-geared，Controller is electrical connected with DC source，And controller controls ignition energy and ignition advance angle by position sensor.
- 2. a kind of miniature gasoline engine as claimed in claim 1, it is characterised in that: described sensing element is arranged on flywheel and is Magnet, and number is at least two, and position sensor is then arranged on body and number is single.
- 3. a kind of miniature gasoline engine as claimed in claim 2, it is characterised in that: described sensing element includes the phase magnet for initial alignment and the measurement Magnet for tachometric survey.
- 4. a kind of miniature gasoline engine as described in claim 1 or 2 or 3, it is characterised in that also including the wiring board being arranged on body and being electrical connected with position sensor and fix, described sensing element is arranged on the circumference of flywheel, and wiring board is then positioned at the side of flywheel.
- 5. miniature gasoline engine as claimed in claim 1 a kind of, it is characterised in that: described sensing element is Magnet and number is single, and position sensor is two or more.
- 6. a kind of miniature gasoline engine as described in claim 1 or 2 or 3, characterized by further comprising the temperature sensor being connected with controller, described DC source is lithium battery, and its middle controller is by position sensor and combines temperature sensor control ignition energy and ignition advance angle.
- 7. a kind of miniature gasoline engine as claimed in claim 1, it is characterised in that: described deceleration unit at least includes the duplicate gear coordinated with motor output and the travelling gear coordinated with duplicate gear transmission.
- 8. a kind of miniature gasoline engine as claimed in claim 1, it is characterized in that it also includes being arranged in deceleration unit the energy storage device that the kinetic energy of motor carries out store and release energy to bent axle and providing the power supply of power to motor, described energy storage device is arranged on inside travelling gear.
- 9. miniature gasoline engine as claimed in claim 8 a kind of, it is characterised in that: described energy storage device is whirlpool spring, and the central coaxial of its center and travelling gear.
- 10. a kind of miniature gasoline engine as claimed in claim 9, it is characterised in that: described power supply is detachable rechargeable battery bag.
- The 11. a kind of miniature gasoline engines as described in claim 8 or 9 or 10, it is characterized in that: described clutch unit includes the driven disc being set on bent axle and contacts with driven disc or separate and by the ratchet of driven by motor, wherein driven disc is provided with a pair ratchet, ratchet be then provided with coordinate accordingly with ratchet and one direction to contact a pair of force protruding.
- 12. a kind of miniature gasoline engines as claimed in claim 11, it is characterized in that: described ratchet is provided with ratchet chamber, is positioned at center, ratchet chamber and fixture co-axially fixed with travelling gear and the pad being set on fixture, and driven disc also includes a pair torsion spring being set on corresponding ratchet.
- 13. a kind of miniature gasoline engines as claimed in claim 12, it is characterised in that: described ratchet includes the contact surface being positioned at end, and projection is provided with the face that coordinates with contact surface abutting contact, and wherein contact surface and cooperation face are plane.
- The 14. a kind of miniature gasoline engines as described in claim 8 or 9 or 10, it is characterised in that: described clutch unit includes the unilateral bearing being set on bent axle and contacts with unilateral bearing or separate and by the ratchet of driven by motor.
- null15. 1 kinds of miniature gasoline engines，It includes body、The flywheel being arranged on body、The cylinder being arranged in body、Piston in the cylinder is set、Bent axle with gas piston linkage、Ignition coil、And export, with ignition coil, the spark plug being connected，It is characterized in that this miniature gasoline engine also includes: DC source、It is arranged on the sensing element on flywheel or body、It is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information、The controller being electrical connected with position sensor and be connected with ignition coil、The deceleration unit that during startup, band dynamic crankshaft rotates、Drive the motor of deceleration unit work、And be arranged between bent axle and motor and the clutch unit of one direction transmission motor power，Its middle controller is electrical connected with DC source，And controller controls ignition energy and ignition advance angle by position sensor.
- 16. a kind of miniature gasoline engines as claimed in claim 15, it is characterised in that: described sensing element is arranged on flywheel and is Magnet, and number is at least two, and position sensor is then arranged on body and number is single.
- 17. a kind of miniature gasoline engines as claimed in claim 16, it is characterised in that: described sensing element includes the phase magnet for initial alignment and the measurement Magnet for tachometric survey.
- The 18. a kind of miniature gasoline engines as described in claim 15 or 16 or 17, characterized by further comprising the wiring board being arranged on body and being electrical connected with position sensor and fix, described sensing element is arranged on the circumference of flywheel, and wiring board is then positioned at the side of flywheel.
- 19. miniature gasoline engines as claimed in claim 15 a kind of, it is characterised in that: described sensing element is Magnet and number is single, and position sensor is two or more.
- The 20. a kind of miniature gasoline engines as described in claim 15 or 16 or 17, characterized by further comprising the temperature sensor being connected with controller, wherein DC source is lithium battery, and controller is by position sensor and combines temperature sensor control ignition energy and ignition advance angle.
- 21. a kind of miniature gasoline engines as claimed in claim 15, it is characterised in that: described deceleration unit at least includes the duplicate gear coordinated with motor output and the travelling gear coordinated with duplicate gear transmission.
- 22. a kind of miniature gasoline engines as claimed in claim 21, it is characterized in that it also includes being arranged in deceleration unit the energy storage device that the kinetic energy of motor carries out store and release energy to bent axle and providing the power supply of power to motor, described energy storage device is arranged on inside travelling gear.
- 23. miniature gasoline engines as claimed in claim 22 a kind of, it is characterised in that: described energy storage device is whirlpool spring, and the central coaxial of its center and travelling gear.
- 24. a kind of miniature gasoline engines as claimed in claim 22, it is characterised in that: described power supply is detachable lithium battery.
- The 25. a kind of miniature gasoline engines as described in claim 15 or 16 or 17 or 21 or 22 or 23 or 24, it is characterized in that it also includes the clutch unit being arranged between bent axle and deceleration unit, described clutch unit includes the driven disc being set on bent axle and contacts with driven disc or separate and by the ratchet of driven by motor, wherein driven disc is provided with a pair ratchet, ratchet be then provided with coordinate accordingly with ratchet and one direction to contact a pair of force protruding.
- 26. a kind of miniature gasoline engines as claimed in claim 25, it is characterized in that: described ratchet is provided with ratchet chamber, is positioned at center, ratchet chamber and fixture co-axially fixed with travelling gear and the pad being set on fixture, and driven disc also includes a pair torsion spring being set on corresponding ratchet.
- 27. a kind of miniature gasoline engines as claimed in claim 26, it is characterised in that: described ratchet includes the contact surface being positioned at end, and projection is provided with the face that coordinates with contact surface abutting contact, and wherein contact surface and cooperation face are plane.
- The 28. a kind of miniature gasoline engines as described in claim 15 or 16 or 17 or 21 or 22 or 23 or 24, it is characterised in that: described clutch unit includes the unilateral bearing being set on bent axle and contacts with unilateral bearing or separate and by the ratchet of driven by motor.
- null29. 1 kinds of miniature gasoline engines，It includes body、The flywheel being arranged on body、The cylinder being arranged in body、Piston in the cylinder is set、Bent axle with gas piston linkage、Ignition coil、And export, with ignition coil, the spark plug being connected，It is characterized in that this miniature gasoline engine also includes: DC source、It is arranged on the sensing element on flywheel or body、It is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information、The controller being electrical connected with position sensor and be connected with ignition coil、The deceleration unit that during startup, band dynamic crankshaft rotates、And drive the motor of deceleration unit work，Wherein said deceleration unit at least includes exporting, with motor, the duplicate gear coordinated、And the travelling gear coordinated with duplicate gear transmission，And controller is electrical connected with DC source，And controller controls ignition energy and ignition advance angle.
- null30. 1 kinds of miniature gasoline engines，It includes body、The flywheel being arranged on body、The cylinder being arranged in body、Piston in the cylinder is set、Bent axle with gas piston linkage、Ignition coil、And export, with ignition coil, the spark plug being connected，It is characterized in that this miniature gasoline engine also includes: DC source、It is arranged on the sensing element on flywheel or body、It is arranged on body or flywheel and is obtained by sensing element the position sensor of Speed of Reaction Wheels information、The controller being electrical connected with position sensor and be connected with ignition coil、The deceleration unit that during startup, band dynamic crankshaft rotates、Drive the motor of deceleration unit work、And be arranged between bent axle and motor and the clutch unit of one direction transmission motor power，Wherein deceleration unit is stage-geared，Controller is electrical connected with DC source，And controller controls ignition energy and ignition advance angle by position sensor，Wherein flywheel is plastic blade.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035903.8U CN205638760U (en) | 2016-01-15 | 2016-01-15 | Mini gasoline engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035903.8U CN205638760U (en) | 2016-01-15 | 2016-01-15 | Mini gasoline engine |
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| CN205638760U true CN205638760U (en) | 2016-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545562A (en) * | 2016-01-15 | 2016-05-04 | 苏州科瓴精密机械科技有限公司 | Small gasoline engine |
| WO2017121398A1 (en) * | 2016-01-15 | 2017-07-20 | 苏州科瓴精密机械科技有限公司 | Portable gasoline tool and electronic ignition system thereof |
| WO2017121395A1 (en) * | 2016-01-15 | 2017-07-20 | 苏州科瓴精密机械科技有限公司 | Garden tool |
-
2016
- 2016-01-15 CN CN201620035903.8U patent/CN205638760U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545562A (en) * | 2016-01-15 | 2016-05-04 | 苏州科瓴精密机械科技有限公司 | Small gasoline engine |
| WO2017121398A1 (en) * | 2016-01-15 | 2017-07-20 | 苏州科瓴精密机械科技有限公司 | Portable gasoline tool and electronic ignition system thereof |
| WO2017121395A1 (en) * | 2016-01-15 | 2017-07-20 | 苏州科瓴精密机械科技有限公司 | Garden tool |
| US10704521B2 (en) | 2016-01-15 | 2020-07-07 | Suzhou Cleva Precision Machinery & Tchnology Co., Ltd. | Portable gasoline tool and electronic ignition system thereof |
| US10851721B2 (en) | 2016-01-15 | 2020-12-01 | Suzhou Cleva Precision Machinery & Technology, Co., Ltd. | Garden tool |
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