CN113236419A

CN113236419A - Electric generator

Info

Publication number: CN113236419A
Application number: CN202110745145.4A
Authority: CN
Inventors: 王义超; 万青源; 王文春
Original assignee: Chongqing Zongshen General Power Machine Co Ltd
Current assignee: Chongqing Zongshen General Power Machine Co Ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-08-10
Anticipated expiration: 2041-07-01
Also published as: CN113236419B

Abstract

The invention belongs to the technical field of generators powered by internal combustion engines, and particularly relates to a generator which comprises a base and a shell, wherein the base and the shell enclose an inner cavity of the generator, a working unit and an air filter are arranged in the inner cavity, an air inlet window for communicating the inner cavity with the outside is arranged on the shell, and an air guide channel is arranged between an air inlet of the air filter and the air inlet window. The problem of the generator in the correlation technique take place output attenuation easily in the use is solved, the stability of generator operation has been improved.

Description

Electric generator

Technical Field

The invention belongs to the technical field of generators taking an internal combustion engine as power, and particularly relates to a generator.

Background

Now, in order to reduce the noise generated by the generator, the working unit of the generator, the air filter and other parts which can generate noise are placed in the closed inner cavity formed by the shell, so as to achieve the effect of silencing. However, it has been found that such an arrangement is prone to a problem of output power attenuation during use of the generator.

Disclosure of Invention

The invention aims to provide a generator to solve the problem that the output power is easy to attenuate when the generator in the related art is used.

In order to achieve the above purpose, the basic scheme of the invention provides a generator, which comprises a base and a shell, wherein the base and the shell enclose an inner cavity of the generator, a working unit and an air filter are arranged in the inner cavity, an air inlet window for communicating the inner cavity with the outside is arranged on the shell, and an air guide channel is arranged between an air inlet of the air filter and the air inlet window.

The principle and the beneficial effect of the basic scheme are as follows: through the setting of wind-guiding passageway, make empty filter can directly obtain the outside fresh air of the inner chamber of generator from the air inlet window through the wind-guiding passageway to avoided like prior art empty filter directly absorbing the air after being heated by the work cell from the inner chamber of generator, and then made empty filter provide the oxygen content of the air of work cell normal, make the work cell can normally work, and then avoided the problem that output decay appears when the generator uses easily.

Further, the air inlet of the air filter is arranged towards the working unit. By adopting the arrangement, the air inlet of the air filter is far away from the shell as far as possible, so that the outward diffusion of the air inlet noise at the air inlet of the air filter through the shell is reduced as far as possible, and the noise of the whole generator is reduced.

Furthermore, a sound insulation board is fixedly arranged in the air guide channel. By adopting the arrangement, the sound insulation board can block the sound in the air guide channel from propagating, so that the noise of the inner cavity of the generator is reduced and diffused to the air inlet window through the air guide channel, and the noise of the generator diffused to the outside is reduced.

Furthermore, one end of the air guide channel, which faces the air inlet of the air filter, is positioned below the air inlet of the air filter. By adopting the arrangement, the air inlet of the air filter is not opposite to the air guide channel, so that the volume of air inlet noise generated at the air inlet of the air filter, which is transmitted into the air guide channel, is reduced, the air inlet noise at the air inlet of the air filter, which is diffused to the outside through the air guide channel, is further reduced, and the noise diffused to the outside by the generator is favorably reduced.

Further, an air inlet guide sleeve is arranged below the air filter, and an air guide channel is formed between the air inlet guide sleeve and the base. By adopting the arrangement, the air guide channel is convenient to process and form, thereby being beneficial to reducing the processing and manufacturing difficulty.

Further, the work unit passes through the shock attenuation unit and is connected with the base, be provided with on the base with the air inlet window intercommunication and towards the air intake of shock attenuation unit. By adopting the arrangement, the air outside the generator sequentially passes through the air inlet window and the air inlet and then acts on the damping unit, and the temperature of the air outside the generator is lower than the temperature of the inner cavity of the generator, so that the air acting on the damping unit at the air inlet generates a cooling effect on the damping unit, the influence of heat generated by the working unit on the damping unit is favorably reduced, and the service life of the damping unit is prolonged.

Furthermore, a flow guide channel communicated with the air inlet window is formed between the base and the shell, and the air inlet is communicated with the flow guide channel and arranged in a staggered mode with the air inlet window. By adopting the arrangement, the noise of the inner cavity of the generator can be reduced and directly diffused from the air inlet window after passing through the air inlet, so that the noise diffused to the outside of the generator is reduced.

Furthermore, a connecting hole is formed in the shell, and an auxiliary air inlet communicated with the inner cavity is formed in the hole wall of the connecting hole. By adopting the arrangement, air is fed from the outside of the shell through the auxiliary air inlet, so that the heat dissipation performance of the whole generator is improved, meanwhile, the auxiliary air inlet is positioned on the inner wall of the connecting hole, the visual perception degree of a user on the auxiliary air inlet can be reduced, and the influence of the auxiliary air inlet on the appearance of the generator is reduced.

Further, the upper portion of casing is provided with the oil tank mounting hole, be provided with the oil extraction groove around the oil tank mounting hole, the oil extraction groove is provided with the decurrent water conservancy diversion face of slope, the lower extreme of water conservancy diversion face has set firmly the water conservancy diversion structure, be provided with fuel between the outer wall of water conservancy diversion structure and casing and only flow the chamber, oil extraction groove and water conservancy diversion structure with the casing is integrated into one piece. By adopting the arrangement, the fuel overflowing from the fuel filling port of the oil tank can be collected in the oil discharge groove and flows to the diversion structure along the diversion surface, and meanwhile, the fuel does not flow from the diversion structure to the shell direction through the fuel flow stopping cavity, so that the fuel drops from the diversion structure, and the potential safety hazard caused by the fact that the fuel enters the inner cavity of the generator from the junction surface of the shell is avoided.

In order to better prevent fuel from entering the interior of the shell, the flow guide structure is a flow guide brim extending downwards.

Further, be provided with the maintenance mouth on the casing, maintenance mouth department can dismantle and be connected with the maintenance door, the edge of maintenance door has set firmly the boss, be provided with the recess that corresponds with the boss on the casing, form between the inner wall of boss and recess and dismantle the operation chamber. By adopting the arrangement, after the maintenance door is disassembled, the maintenance treatment and other operations can be carried out on the interior of the generator through the maintenance opening, and the whole shell does not need to be disassembled, so that the maintainability of the generator is improved; meanwhile, the boss and the groove form a disassembly operation cavity, acting force can be conveniently applied to the boss through the disassembly operation cavity, so that the maintenance door can be conveniently separated from the shell, and the disassembly operation of the maintenance door is convenient.

Furthermore, the maintenance door is connected with the shell through a rotary connecting piece, and the groove is provided with an operation space for the fingers to directly act on the disassembling operation cavity. By adopting the arrangement, after the rotary connecting piece is directly screwed by hand, the maintenance door and the shell are out of connection, and then the operating space in the groove is used for applying acting force on the boss at the position of the disassembly operating cavity by fingers, so that the maintenance door is separated from the shell, the maintenance door is disassembled from the shell under the condition of not depending on tools, and the convenience of generator maintenance is further improved.

Furthermore, a panel installation cavity is arranged on the shell, and an igniter and an electromagnetic valve controller are arranged in the panel installation cavity. By adopting the arrangement, the structure of the whole machine is more compact.

Furthermore, the anti-collision pad is fixedly arranged on one side, facing the working unit, of the panel installation cavity. By adopting the arrangement, the damage of moving impact and operation vibration to parts in the panel mounting cavity is reduced, so that the impact resistance of the whole machine is improved.

Further, the shell is provided with a mounting groove for mounting an electrical appliance component, and the mounting groove is positioned on one side of the shell, which is provided with an air inlet window. By adopting the arrangement, the electrical appliance component is arranged on the shell, so that the electrical appliance component is conveniently arranged in space and maintained and the like, and meanwhile, the installation groove is adjacent to the air inlet window, so that the electrical appliance component in the installation groove is conveniently cooled by utilizing the airflow entering from the air inlet window, the influence of heat generated by the working unit on the electrical appliance component is reduced, and the electrical appliance component is prevented from being damaged due to overheating.

A generator comprises a base and a shell, wherein the base and the shell enclose an inner cavity of the generator, a working unit and an air filter are arranged in the inner cavity, an air inlet window for communicating the inner cavity with the outside is arranged on the shell, and an air guide channel is arranged between an air inlet of the air filter and the air inlet window; the working unit is connected with the base through the damping unit, and an air inlet which is communicated with the air inlet window and faces the damping unit is formed in the base; an oil tank mounting hole is formed in the upper portion of the shell, an oil discharge groove is formed in the periphery of the oil tank mounting hole, a flow guide surface which inclines downwards is arranged in the oil discharge groove, a flow guide structure is fixedly arranged at the lower end of the flow guide surface, and a fuel oil flow stopping cavity is formed between the flow guide structure and the outer wall of the shell; the device comprises a shell, a maintenance door, a groove, a disassembly operation cavity and a finger, wherein the shell is provided with a maintenance opening, the maintenance opening is detachably connected with the maintenance door, the edge of the maintenance door is fixedly provided with a boss, the shell is provided with a groove corresponding to the boss, the disassembly operation cavity is formed between the boss and the inner wall of the groove, and the groove is provided with an operation space for the finger to directly act on the disassembly operation cavity; the shell is provided with a mounting groove for mounting an electric appliance part, and the mounting groove is positioned on one side of the shell, which is provided with an air inlet window.

The beneficial effect of this scheme lies in: with such an arrangement, the safety, maintainability and compactness of the generator are improved.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a generator of the present invention;

FIG. 2 is a schematic view of an embodiment of a generator of the present invention facing a panel mounting cavity;

FIG. 3 is a right side view of FIG. 2 with the maintenance door omitted;

fig. 4 is a schematic diagram of an embodiment of the generator of the present invention with the upper portion of the housing omitted.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a shell 10, an air inlet window 101, an oil discharge groove 102, a flow guide surface 103, a flow guide brim 104, a fuel oil flow stop cavity 105, a groove 106, a panel mounting cavity 107, a mounting groove 108, a maintenance opening 109, a working unit 11, a base 12, an oil tank 13, a maintenance door 14, a boss 141, an air inlet 21, an air inlet flow guide cover 22, an air guide channel 221, a sound insulation plate 23, an igniter 31, an electromagnetic valve controller 32, a flow guide channel 41, an air inlet 411, a shock absorption unit 42 and a crash pad 51.

Example (b): as shown in fig. 1 and 2, a generator comprises a base 12 and a housing 10, wherein the base 12 is located at the bottom of the housing 10, the base 12 and the housing 10 enclose an inner cavity of the generator, a working unit 11 mainly composed of a fuel power unit and a power generation unit is arranged in the inner cavity, and the working unit 11 is connected with the base 12 through a damping unit 42; an air filter is also arranged in the inner cavity, the air filter is positioned at the side of the working unit 11, and an air inlet 21 of the air filter is arranged towards the working unit 11. The casing 10 is provided with an air inlet window 101 for communicating the inner chamber with the outside, and the air inlet window 101 is preferably provided at a lower portion of the casing 10. An air guide channel 221 (an air flow path is shown by an arrow in fig. 1) is arranged between the air inlet 21 of the air filter and the air inlet window 101, in the embodiment, the horizontal position of the air inlet 21 of the air filter is located above the horizontal position of the air inlet window 101, and the air guide channel 221 is located below the air filter; in this embodiment, the air guiding channel 221 is mainly formed by connecting the air inlet guide sleeve 22 disposed below the air filter with the base 12, one end of the air guiding channel 221 is communicated with the air inlet window 101, the other end of the air guiding channel 221 is opposite to the air inlet 21 of the air filter, and one end of the air guiding channel 221 opposite to the air inlet 21 of the air filter is located below the side of the air inlet 21 of the air filter, so that noise generated at the air inlet 21 of the air filter is more directly transmitted to the working unit 11 to be reduced into the air guiding channel 221, and noise generated at the air inlet 21 of the air filter is favorably reduced from being transmitted to the outside of the housing 10 through the air guiding channel 221. In the air guide passage 221, a sound insulation plate 23 is provided, and in this embodiment, the sound insulation plate 23 is integrally formed with the intake dome 22, so that noise is reduced by the sound insulation plate 23 and is transmitted to the intake window 101 through the air guide passage 221.

As shown in fig. 2, a flow guiding channel 41 (an air flow path is shown by an arrow in fig. 2) communicating with the air inlet window 101 is formed between the base 12 and the housing 10, specifically, a flanging structure is formed at the edge of the base 12 and located inside the housing 10, and a space formed between the flanging structure and the housing 10 is the flow guiding channel 41. The base 12 is provided with an air inlet 411 communicated with the flow guide channel 41, the air inlet 411 and the air inlet window 101 are arranged in a staggered manner, and the air inlet 411 faces the damping unit 42.

As shown in fig. 1, an oil tank 13 is further disposed in the inner cavity of the generator, and an oil tank mounting hole for mounting an oil filling port of the oil tank 13 is disposed at the top of the housing 10. An oil drainage groove 102 is formed in the shell 10 and located around an oil tank mounting hole, the oil drainage groove 102 is provided with a flow guide surface 103 which inclines downwards, a flow guide brim 104 which extends downwards is arranged at the lower end of the flow guide surface 103, the flow guide brim 104 and the shell 10 are integrally formed, the flow guide brim 104 is cantilevered to the outer side of the shell 10, and a fuel oil flow stopping cavity 105 is formed between the flow guide brim 104 and the outer wall of the shell 10, so that overflowed fuel oil flows to the flow guide brim 104 after passing through the oil drainage groove 102 and the flow guide surface 103 and finally drips from the flow guide brim 104, and the situation that the fuel oil flows along the shell 10 and enters the shell 10 from gaps at positions such as parting surfaces on the shell 10 to form potential safety hazards is avoided.

As shown in fig. 3, a maintenance opening 109 is provided in the housing 10, and maintenance operations can be performed on components in the generator cavity through the maintenance opening 109. The maintenance door 14 is detachably connected to the maintenance opening 109, in this embodiment, the maintenance door 14 is connected to the housing 10 through a rotary connecting member, the rotary connecting member is rotatably connected to the maintenance door 14, the rotary connecting member has a cam-shaped locking structure, the housing 10 is provided with a connecting groove matching with the cam shape, and the cam-shaped locking structure is inserted into the connecting groove and then rotated by 90 degrees to realize the connection. As shown in fig. 2, a boss 141 is integrally formed at the edge of the maintenance door 14, a groove 106 corresponding to the boss 141 is provided on the housing 10, a disassembly operation cavity is formed between the boss 141 and the inner wall of the groove 106, and the groove 106 has an operation space for directly acting on the disassembly operation cavity by fingers, so that the maintenance door 14 can be conveniently separated from the housing 10 by directly extending the fingers into the groove 106 to poke the boss 141 when the maintenance door 14 is disassembled, and the maintenance door 14 can be conveniently disassembled.

As shown in fig. 3, a mounting groove 108 for mounting electric components is provided in the casing 10 at a position corresponding to the maintenance opening 109, and the mounting groove 108 is provided on the casing 10 at a side where the louver 101 is provided. The electric appliance parts in the mounting groove 108 are cooled by the airflow action at the air inlet window 101, so that the electric appliance parts are prevented from being damaged due to overheating. The mounting groove 108 can be used for mounting electric components such as a storage battery, a start-stop control circuit or a carbon monoxide sensor; the storage battery can provide starting current for starting the generator; the start-stop control circuit is convenient for controlling the start and stop of the generator, so that the convenience of the start-stop control of the generator is improved; the carbon monoxide sensor is convenient to monitor the carbon monoxide concentration around the generator, so that the safety of the generator is improved. When the maintenance door 14 is connected to the housing 10 and covers the maintenance opening 109, the maintenance door 14 also covers the installation groove 108, thereby sealing the electrical components in the installation groove 108 inside the generator.

As shown in fig. 2, the housing 10 is further provided with a panel mounting chamber 107, and the igniter 31 and the solenoid valve controller 32 are mounted in the panel mounting chamber 107. As shown in fig. 4, a crash pad 51 is provided on the housing 10 on a side of the panel installation chamber 107 facing the working unit 11, and in the present embodiment, the crash pad 51 is preferably a crash cushion. The lower portion of the case 10 is provided with a coupling hole through which a coupling bolt passes and is coupled with the base 12. The connecting hole is in a stepped hole shape sunken towards the inner cavity of the generator, and an auxiliary air inlet communicated with the inner cavity of the generator is formed in the hole wall of the connecting hole.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. A generator, comprising a base and a casing, the base and the casing enclose an inner cavity of the generator, a working unit and an air filter are arranged in the inner cavity, and the inner cavity is provided on the casing. The air inlet window communicated with the outside world is characterized in that an air guide channel is arranged between the air inlet of the air filter and the air inlet window.

2 . The generator according to claim 1 , wherein the air inlet of the air filter is arranged toward the working unit. 3 .

3 . The generator according to claim 2 , wherein a sound insulation board is fixed in the air guide channel. 4 .

4 . The generator according to claim 3 , wherein one end of the air guide channel facing the air inlet of the air filter is located below the air inlet of the air filter. 5 .

5 . The generator according to claim 4 , wherein an air intake shroud is arranged below the air filter, and the air guide channel is formed between the intake shroud and the base. 6 .

6. The generator according to any one of claims 1 to 5, wherein the working unit is connected to the base through a shock absorbing unit, and the base is provided with a connection with the air inlet window and facing the shock absorbing unit. The air inlet of the unit.

7 . The generator according to claim 6 , wherein a diversion channel communicating with the air inlet window is formed between the base and the housing, and the air inlet communicates with the diversion channel and is connected to the air intake. 8 . Window misalignment settings.

8. The generator according to any one of claims 1 to 5, wherein a connecting hole is provided on the casing, and a hole wall of the connecting hole is provided with a connecting hole communicating with the inner cavity. Auxiliary air intake.

9. The generator according to any one of claims 1 to 5, wherein an oil tank mounting hole is provided on the upper part of the casing, an oil drain groove is provided around the oil tank mounting hole, and the The oil tank is provided with an inclined downward guide surface, a guide structure is fixed at the lower end of the guide surface, and a fuel flow stop cavity is arranged between the guide structure and the outer wall of the casing. The flow structure is integrally formed with the housing.

10 . The generator according to claim 9 , wherein the guide structure is a guide eaves extending downward. 11 .

11. The generator according to any one of claims 1 to 5, wherein a maintenance port is provided on the casing, and a maintenance door is detachably connected to the maintenance port, and a maintenance door is detachably connected to the maintenance port. A boss is fixed on the edge, a groove corresponding to the boss is arranged on the shell, and a disassembly operation cavity is formed between the boss and the inner wall of the groove.

12 . The generator according to claim 11 , wherein the maintenance door and the housing are connected by a rotary connector, and the groove has an operation space for fingers to directly act on the disassembly operation cavity. 13 . .

13 . The generator according to claim 1 , wherein a panel mounting cavity is provided on the casing, and an igniter and a solenoid valve controller are provided in the panel mounting cavity. 14 .

14 . The generator according to claim 13 , wherein a crash pad is fixed on the side of the panel installation cavity facing the working unit. 15 .

15. The generator according to any one of claims 1 to 5, wherein the housing is provided with a mounting slot for installing electrical components, and the mounting slot is provided with an air inlet window on the housing side.

16. A generator, comprising a base and a casing, the base and the casing enclose an inner cavity of the generator, a working unit and an air filter are arranged in the inner cavity, and an inner cavity is arranged on the casing. The air inlet window that communicates with the outside world is characterized in that: an air guide channel is arranged between the air inlet of the air filter and the air inlet window; the working unit is connected to the base through a shock absorbing unit, and the base is An air inlet communicated with the air inlet window and facing the damping unit is provided; an oil tank mounting hole is provided on the upper part of the casing, and an oil drain groove is provided around the oil tank mounting hole, and the oil drain groove is provided with an inclined downward. A flow guide surface, a flow guide structure is fixed at the lower end of the flow guide surface, and a fuel flow stop cavity is set between the flow guide structure and the outer wall of the casing; a maintenance port is arranged on the casing, and the maintenance A maintenance door is detachably connected to the mouth, a boss is fixed on the edge of the maintenance door, a groove corresponding to the boss is arranged on the casing, and a disassembly operation is formed between the boss and the inner wall of the groove The groove has an operation space for fingers to directly act on the disassembly operation cavity; the casing is provided with an installation groove for installing electrical components, and the installation groove is located on the side where the air inlet window is arranged on the casing.