CN108590845B

CN108590845B - Portable generator

Info

Publication number: CN108590845B
Application number: CN201810264253.8A
Authority: CN
Inventors: 滕俊宇
Original assignee: Individual
Current assignee: Teng Junyu
Priority date: 2018-03-28
Filing date: 2018-03-28
Publication date: 2024-05-24
Anticipated expiration: 2038-03-28
Also published as: CN108590845A

Abstract

The invention relates to the technical field of generators, and discloses a portable generator. The portable generator comprises an oil tank, an engine, a power generation motor, a first driving wheel, a second driving wheel, a first driving belt, a one-way bearing, an end disc and a clutch wheel, wherein the one-way bearing is sleeved on an output shaft of the engine, the first driving wheel is sleeved on the one-way bearing, the second driving wheel is sleeved on the output shaft of the power generation motor, the first driving wheel is in driving connection with the second driving wheel through the first driving belt, a clutch cavity is formed in the first driving wheel, the clutch wheel is arranged in the clutch cavity, the end disc is sleeved on the output shaft of the engine, the clutch wheel is in a circular arc structure, one end of the clutch wheel is fixedly connected with the end disc, and the circle center of the clutch wheel is positioned on the axis of the output shaft of the engine and is arranged at intervals with the first driving wheel along the radial direction of the first driving wheel. The portable generator has the advantages that the volume is obviously reduced, and the portable generator can be conveniently carried.

Description

Portable generator

Technical Field

The invention relates to the technical field of generators, in particular to a portable generator.

Background

For outdoor travel, especially for hiking travel, the power supply continuous voyage equipment is particularly important, and the power supply equipment needs to have high capacity and portability.

At present, the portable charging device on the market is mainly a treasured that charges, although with the continuous upgrading of product, precious performance that charges has very big promotion, nevertheless is limited to the nature of product, and it is only instrument that electric quantity was stored, obviously can't satisfy the power consumption that people's existence required in the open air, especially runs into the place that power equipment lacks, charges precious continuation of journey and also is a serious problem.

The generator can meet the power consumption requirement of outdoor travel of people, and even under severe conditions, the generator can stably provide power, so that the life and the lighting required by communication of people are guaranteed, but the existing generator is too large in size and is very difficult to carry.

Therefore, the design of the portable generator has very important significance for people going outdoors for a long time.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a portable generator.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a generator that can hand-carry, including oil tank, engine and generating motor, still include first drive wheel, second drive wheel, first drive belt, one-way bearing, end dish and separation and reunion wheel, one-way bearing cover is located on the output shaft of engine, first drive wheel cover is located on the one-way bearing, the second drive wheel cover is located on the output shaft of generating motor, first drive wheel with the second drive wheel passes through first drive belt transmission connection, the separation and reunion chamber has been seted up on the first drive wheel, the separation and reunion wheel is located in the separation and reunion chamber, the end dish cover is located on the output shaft of engine, the separation and reunion wheel is circular arc structure, its one end with end dish fixed connection, the centre of a circle of separation and reunion wheel is located on the axis of the output shaft of engine, and along on the radial direction of first drive wheel, the separation and declutch wheel with first drive wheel interval sets up.

As a further improvement of the above technical solution, the number of the clutch wheels is 2, and two ends of 2 clutch wheels are in contact with each other to form a circular structure.

As a further improvement of the technical scheme, first meshing teeth are arranged on the peripheral surfaces of the first driving wheel and the second driving wheel, and second meshing teeth in meshing connection with the first meshing teeth are arranged on one surface of the first driving belt facing the first driving wheel and the second driving wheel.

As a further improvement of the above technical solution, the engine includes a piston, and an intake valve and an exhaust valve for pushing the piston to move, the number of the intake valves is 1, and the number of the exhaust valves is also 1.

As a further improvement of the technical scheme, the piston is fixedly provided with sealing rings, and the number of the sealing rings is 1.

As a further improvement of the technical scheme, the novel exhaust valve compression device further comprises a third driving wheel, a fourth driving wheel and a valve control shaft, wherein the third driving wheel is sleeved on an output shaft of the engine, the valve control shaft is fixedly arranged in the engine, the fourth driving wheel is sleeved on the valve control shaft, the third driving wheel is in transmission connection with the fourth driving wheel, a first swing rod and a second swing rod are fixedly arranged in the engine, one end of the first swing rod is positioned at the upper end of an air inlet valve, the other end of the first swing rod is positioned on the valve control shaft, one end of the second swing rod is positioned at the upper end of an exhaust valve, the other end of the second swing rod is positioned on the valve control shaft, a first bump is arranged at the position corresponding to the first swing rod, a second bump is arranged at the position corresponding to the second swing rod, the output shaft of the engine rotates, the third driving wheel and the fourth driving wheel are in transmission to drive the valve control shaft to rotate, and then the air inlet valve is pushed to move downwards through the first bump, and the second bump is pushed downwards to compress the air valve.

As a further improvement of the technical scheme, a second transmission belt is sleeved on the third transmission wheel and the fourth transmission wheel, so that the third transmission wheel and the fourth transmission wheel are in belt transmission.

As a further improvement of the technical scheme, a rotating column is further fixedly arranged on the engine, the rotating column is far away from one end of the engine, a cooling fan is sleeved on the rotating column, the side face of the rotating column is tightly attached to the second transmission belt, the second transmission belt is tensioned, the rotating column is driven to rotate through the second transmission belt, and then the cooling fan is driven to rotate.

As a further improvement of the technical scheme, the engine is further fixedly provided with a noise reduction box, the noise reduction box is communicated with the air outlet of the engine, and a harmonic noise reduction passage is arranged in the noise reduction box so as to reduce noise generated by the operation of the engine.

As a further improvement of the technical scheme, the noise reduction box is provided with a first air tap communicated with the inside of the noise reduction box, the oil tank is provided with a second air tap communicated with the inside of the oil tank, and the first air tap is communicated with the second air tap through a pipeline, so that gas in the noise reduction box flows into the oil tank to increase the oil supply pressure of the oil tank.

The beneficial effects of the invention are as follows:

When the portable generator works, the engine is driven to start through the operation of the power generation motor, after the engine works normally, the rotation of the engine is increased, the rotation of the output shaft of the engine is accelerated, the output shaft of the engine is used as a driving shaft to drive the power generation motor to work, in the process, the relative rotation direction of the inner ring and the outer ring of the one-way bearing is changed, when the output shaft of the engine is used as the driving shaft, the first driving wheel on the one-way bearing is separated from the output shaft of the engine, at the moment, the free end of the clutch wheel is abutted against the first driving wheel by the centrifugal force generated when the clutch wheel rotates, and then the first driving wheel rotates together with the rotation of the clutch wheel, so that the power generation motor is driven to work. Compared with the traditional generator, the portable generator provided by the invention has the advantages that the function of the starting motor and the generating motor is simultaneously finished through one generating motor, the size of the generator is obviously reduced, and the portable generator can be carried.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the overall structure of a portable generator of the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

FIG. 3 is a schematic view of the split construction at the first drive wheel location;

FIG. 4 is a schematic cross-sectional view of the first drive wheel position;

FIG. 5 is a schematic view of the internal structure of an engine section;

FIG. 6 is a schematic structural view of a valve control shaft;

Fig. 7 is a schematic view of the internal structure of the noise reduction box.

Detailed Description

The conception, specific structure, and technical effects produced by the present application will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, front, rear, etc. used in the present invention are merely with respect to the mutual positional relationship of the respective constituent elements of the present invention in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any combination of one or more of the associated listed items.

Referring to fig. 1 and 2, the portable generator of the present invention includes an oil tank 1, an engine 2, a generator motor 3, a carburetor 4, an air inlet valve 5, a control box 6, and an outer cover 7, wherein the oil tank 1, the engine 2, the generator motor 3, the carburetor 4, the air inlet valve 5, and the control box 6 are all disposed in the outer cover 7, the control box 6 is electrically connected with the generator motor 3, the surface of the control box 6 is exposed out of the outer cover 7, a control switch is disposed on the surface of the control box 6, the working state of the generator motor 3 is controlled by the control switch, the engine 2 and the oil tank 1 are communicated through the carburetor 4 and the air inlet valve 5, the bottom of the carburetor 4 and the bottom of the oil tank 1 are provided with an oil supply pipeline 10, the fuel in the oil tank 1 flows into the carburetor 4 through the oil supply pipeline 10 for atomization, and the amount of the atomized fuel entering the engine 2 is controlled by the air inlet valve 5 to control the power of the engine 2.

The engine 2 is in transmission connection with the power generation motor 3, a first transmission wheel 20 is sleeved on an output shaft of the engine 2, a second transmission wheel 30 is sleeved on an output shaft of the power generation motor 3, a first transmission belt 31 is sleeved on the first transmission wheel 20 and the second transmission wheel 30, in order to increase transmission reliability of the first transmission wheel 20 and the first transmission belt 31 and the second transmission wheel 30 and the first transmission belt 31, first meshing teeth 32 are arranged on the peripheral surfaces of the first transmission wheel 20 and the second transmission wheel 30, second meshing teeth 310 are arranged on one surface, which is attached to the first transmission wheel 20 and the second transmission wheel 30, of the first transmission wheel 20 and the second transmission wheel 30, and further the first transmission wheel 20 and the second transmission wheel 30 are meshed with the first transmission belt 31 through teeth respectively, so that transmission efficiency and transmission reliability are effectively increased.

Referring to fig. 3 and 4, in this embodiment, the output shaft of the engine 2 is further sleeved with a one-way bearing 21 and an end disc 22, the first driving wheel 20 is sleeved on the one-way bearing 21, the end disc 22 is disposed close to the first driving wheel 20, the first driving wheel 20 is further provided with a clutch cavity 200, a clutch wheel 23 is disposed in the clutch cavity 200, one end of the clutch wheel 23 is fixedly disposed on the end disc 22, the other end of the clutch wheel is freely disposed, and the clutch wheel 23 and the first driving wheel 20 are disposed at intervals along the radial direction of the first driving wheel 20, and it is noted that the one-way bearing 21 has a motion characteristic of locking in one direction and separating in the other direction, during the starting stage, the generator motor 3 drives the engine 2 to rotate, the second driving wheel 30 drives the first driving wheel 20 to rotate, at this moment, the inner ring and the outer ring of the one-way bearing 21 are locked, the one-way bearing 21 rotates along with the first driving wheel 20 to drive the output shaft of the engine to rotate so as to drive the engine 2 to work, and when the engine 2 works normally, the engine 2 drives the power generation motor 3 to work, at the moment, the output shaft of the engine 2 works as a driving shaft, the relative rotation direction of the inner ring and the outer ring of the one-way bearing 21 changes, so that the inner ring and the outer ring of the one-way bearing 21 are separated, the first driving wheel 20 is separated from the output shaft of the engine 2, the power generation motor 3 is driven to generate electricity and transits to the engine 2, the clutch wheel 23 is acted by centrifugal force along with the rising of the rotation speed of the output shaft of the engine 2, the free end of the clutch wheel 23 moves outwards until the free end is tightly attached to the first driving wheel 20, at the moment, the first driving wheel 20 rotates together with the clutch wheel 23 by the fastening force of the clutch wheel 23 so as to drive the power generation motor 3 to work, compared with the traditional generator, according to the portable generator, 1 power generation motor is used for simultaneously completing the functions of starting the motor and the power generation motor, so that the number of motors is effectively reduced, and the size of the generator is obviously reduced.

Preferably, the end disc 22 is further fixedly provided with a hand rocker 220, the end disc 22 can be driven to rotate by pulling the hand rocker 220, so that an output shaft of the engine 2 rotates, and in the starting stage of the engine 2, the starting of the engine 2 can be completed in an auxiliary manner through the hand rocker 220.

Referring to fig. 3 and 5, in the present embodiment, an engine 2 includes an engine housing 2000, a cylinder 2100, a piston 2200, a rocker 2300, a first crank 2400, an intake valve 2500 and an exhaust valve 2600, the cylinder 2100 is fixedly arranged in the engine housing 2000, the piston 2200 is slidably arranged in the cylinder 2100, the rocker 2300 is fixedly arranged at the lower end of the piston 2200, one end of the rocker 2300 far away from the piston 2200 is hinged with the first crank 2400, the first crank 2400 is fixedly connected with an output shaft of the engine 2, the intake valve 2500 and the exhaust valve 2600 are arranged at the upper end of the piston 2200, atomized fuel is controlled to enter the engine 2 by the up and down of the intake valve 2500, so as to provide power for the movement of the piston 2200, when the piston 2200 moves, the rocker 2300 moves along with the movement, so as to drive the crank 2400 to drive the output shaft of the engine 2 to rotate, and when the piston 2200 moves, the exhaust valve 2600 also moves up and down, so as to discharge exhaust gas generated by the atomized fuel combustion in the engine 2.

Preferably, the number of the air inlet valves 2500 and the number of the air outlet valves 2600 are 1, and the traditional generating motor is often provided with 1 pair of air inlet valves 2500 and 1 pair of air outlet valves 2600 to increase the power of the engine, in this embodiment, when the outdoor traveling is performed, power is supplied to some simple necessary electrical equipment, the normal power supply operation of the generator is ensured by the 1 air inlet valves 2500 and 1 air outlet valve 2600, meanwhile, the volume of the engine 2 is also obviously reduced, and the volumes of other parts of the corresponding generator can also be correspondingly reduced.

Preferably, a circle of sealing ring (not shown in the figure) is sleeved on the piston 2200, compared with the design of 3 circles of sealing rings on the piston 2200 of the traditional engine, in this embodiment, only one circle of sealing ring is arranged on the piston 2200, which is enough to ensure the normal operation of the engine in a low-power supply environment, and the length requirement of the piston 2200 is also obviously reduced, so that the volume of the engine is obviously reduced, and the volumes of other corresponding components can be also obviously reduced.

According to the portable generator, through the connection structure of the generator motor 3 and the engine 2 and the optimized design of the piston 2200, the air inlet valve 2500 and the air outlet valve 2600 in the engine 2, the size of the portable generator is remarkably reduced, and the portable generator achieves the benefit of portability.

In this embodiment, a second crank 2700, a valve control shaft 2800, a first swing stem 2900 and a second swing stem 2901 are further disposed in the engine 2, the second crank 2700 is also hinged to the swing stem 2300, an output shaft of the engine is designed at two ends, one section is fixedly connected with the first crank 2400 and is used for driving the first driving wheel 20 to move, the other section is fixedly connected with the second crank 2700, a third driving wheel 24 is sleeved on one section of the output shaft of the engine 2 fixedly connected with the second crank 2700, the valve control shaft 2800 is fixedly disposed in the engine 2, a fourth driving wheel 25 is sleeved on the valve control shaft 2800, the third driving wheel 24 is in transmission connection with the fourth driving wheel 25, one end of the first swing stem 2900 is disposed at the upper end of the air inlet valve 2500, the other end of the first swing stem is disposed on the valve control shaft 2800, one end of the second swing stem 2901 is disposed at the upper end of the air outlet valve 2600, and the other end of the second swing stem is disposed on the valve control shaft 2800.

Preferably, as shown in fig. 5 and 6, a first bump 28000 is disposed on the valve control shaft 2800 at a position corresponding to the first swing stem 2900, a second bump 28001 is disposed on the valve control shaft 2800 at a position corresponding to the second swing stem 2901, and the positions of the first bump 28000 and the second bump 28001 correspond to an ignition position and an air outlet position in the engine 2 respectively, so that the ignition of the engine 2 can be accurately controlled by the arrangement of the first bump 28000 and the second bump 28001, the fuel amount can be saved, or the volume of the cylinder 2100 can be reduced by increasing the fuel combustion efficiency, and the purpose of reducing the volume of the generator can be further achieved.

Preferably, the third driving wheel 24 and the fourth driving wheel 25 are sleeved with a second driving belt 26, so that the third driving wheel 24 and the fourth driving wheel 25 are driven by a belt.

The engine 2 is further fixedly provided with a rotating column 27, the rotating column 27 is tightly attached to the second transmission belt 26 to tension the second transmission belt 26, meanwhile, when the second transmission belt 26 works, friction force can drive the rotating column 27 to rotate, and one end, far away from the engine 2, of the rotating column 27 is sleeved with a cooling fan 28 for cooling the engine 2.

The portable generator of the invention has the advantages that the first driving wheel 20, the cooling fan 28 and the valve control shaft 2800 are all driven by the output shaft of the engine 2, thus greatly reducing the number of parts of the generator and obviously reducing the volume of the generator.

Preferably, the engine housing 2000 is further provided with a fin-shaped heat dissipation structure to further increase the heat dissipation efficiency of the engine, and the fin-shaped heat dissipation structure does not increase the volume of the engine 2.

In order to reduce noise generated by the operation of the engine 2, as shown in fig. 2 and 7, the portable generator of the invention further comprises a noise reduction box 8 which is arranged to be abutted against the engine 2, the noise reduction box 8 is communicated with an air outlet of the engine 2, a harmonic noise reduction passage 80 is arranged in the noise reduction box 8, the harmonic noise reduction passage 80 is a tortuous flow path, and an air outlet 81 for air to flow out is further arranged on the noise reduction box 8.

Preferably, the noise reduction box 8 is further provided with a first air tap 82, the corresponding upper end of the oil tank 1 is provided with a second air tap 11, the first air tap 82 is communicated with the second air tap 11 through a pipeline, and then gas in the noise reduction box 8 flows into the oil tank 1 through the pipeline, so that the pressure in the oil tank 1 is increased, and the pressure is provided for oil supply of the oil tank 1.

Preferably, the tank 1 is filled with alcohol as fuel.

While the application has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions may be made therein without departing from the spirit of the application and that these changes and substitutions are intended in the scope of the application as defined by the appended claims.

Claims

1. The portable generator comprises an oil tank, an engine and a power generation motor, and is characterized by further comprising a first driving wheel, a second driving wheel, a first driving belt, a one-way bearing, an end disc and a clutch wheel, wherein the one-way bearing is sleeved on an output shaft of the engine, the first driving wheel is sleeved on the one-way bearing, the second driving wheel is sleeved on the output shaft of the power generation motor, the first driving wheel and the second driving wheel are in driving connection through the first driving belt, a clutch cavity is formed in the first driving wheel, the clutch wheel is arranged in the clutch cavity, the end disc is sleeved on the output shaft of the engine, the clutch wheel is in a circular arc structure, one end of the clutch wheel is fixedly connected with the end disc, the circle center of the clutch wheel is positioned on the axis of the output shaft of the engine, and the clutch wheel and the first driving wheel are arranged at intervals along the radial direction of the first driving wheel;

The first transmission wheel and the second transmission wheel are provided with first meshing teeth on the peripheral surfaces, and a second meshing tooth in meshing connection with the first meshing teeth is arranged on one surface of the first transmission belt facing the first transmission wheel and the second transmission wheel;

the engine comprises a piston, and an air inlet valve and an air outlet valve which push the piston to move, wherein the number of the air inlet valves is 1, and the number of the air outlet valves is 1;

The engine is characterized by further comprising a third driving wheel, a fourth driving wheel and a valve control shaft, wherein the third driving wheel is sleeved on an output shaft of the engine, the valve control shaft is fixedly arranged in the engine, the fourth driving wheel is sleeved on the valve control shaft, the third driving wheel is in transmission connection with the fourth driving wheel, a first swing rod and a second swing rod are fixedly arranged in the engine, one end of the first swing rod is positioned at the upper end of an air inlet valve, the other end of the first swing rod is positioned on the valve control shaft, one end of the second swing rod is positioned at the upper end of an air outlet valve, the other end of the second swing rod is positioned on the valve control shaft, a first bump is arranged on the valve control shaft corresponding to the first swing rod, a second bump is arranged on the valve control shaft corresponding to the second swing rod, the output shaft of the engine rotates, the third driving wheel and the fourth driving wheel are used for driving the valve control shaft to rotate, and then the air inlet valve is pushed to move downwards through the first bump, and the second bump is pushed downwards to compress the air inlet valve;

the number of the clutch wheels is 2, and two ends of 2 clutch wheels are in contact with each other to form a circular structure.

2. The portable generator of claim 1, wherein the number of sealing rings is 1.

3. The portable generator of claim 1, wherein a second belt is sleeved on the third and fourth drive wheels to drive the third and fourth drive wheels.

4. The portable generator according to claim 3, wherein a rotating post is further fixed on the engine, a cooling fan is sleeved on an end, far away from the engine, of the rotating post, the side surface of the rotating post is tightly attached to the second driving belt, so that the second driving belt is tensioned, and the rotating post is driven to rotate through the second driving belt, so that the cooling fan is driven to rotate.

5. The portable generator of claim 1, wherein a noise reduction box is further fixedly arranged on the engine and is communicated with an air outlet of the engine, and a harmonic noise reduction passage is arranged in the noise reduction box so as to reduce noise generated by the operation of the engine.

6. The portable generator of claim 5, wherein the noise reduction box is provided with a first air tap communicated with the interior of the noise reduction box, the oil box is provided with a second air tap communicated with the interior of the oil box, and the first air tap is communicated with the second air tap through a pipeline, so that gas in the noise reduction box flows into the oil box to increase the oil supply pressure of the oil box.