A generator

Abstract

The present invention belongs to the technical field of generators powered by internal combustion engines, and is specifically a generator, comprising a base and a shell, wherein the base and the shell enclose an inner cavity of the generator, wherein a working unit and an air filter are arranged in the inner cavity, an air inlet window for connecting the inner cavity with the outside is arranged on the shell, and an air guide channel is arranged between the air inlet of the air filter and the air inlet window. The problem of output power attenuation that is easy to occur during the use of the generator in the related art is solved, and the stability of the generator operation is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of generators using internal combustion engines as power, and in particular relates to a generator. Background Art

[0002] In order to reduce the noise generated by the generator, the working unit, air filter and other noise-generating parts of the generator are placed in a closed inner cavity formed by the shell to achieve a silent effect. However, it is found that after such a setting, the generator is prone to output power attenuation when in use. Summary of the invention

[0003] The purpose of the present invention is to provide a generator to solve the problem of output power attenuation that easily occurs when the generator is used in the related art.

[0004] In order to achieve the above-mentioned purpose, the basic scheme of the present invention provides a generator, including a base and a shell, 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 is arranged on the shell to connect the inner cavity with the outside, and an air guide channel is arranged between the air inlet of the air filter and the air inlet window.

[0005] The principle and beneficial effect of this basic scheme are: by setting up the air guide channel, the air filter can obtain fresh air from the outside of the inner cavity of the generator directly from the air inlet window through the air guide channel, thereby avoiding the air filter directly absorbing the air heated by the working unit from the inner cavity of the generator as in the prior art, and then the oxygen content of the air provided by the air filter to the working unit is normal, so that the working unit can work normally, thereby avoiding the problem of output power attenuation that is easy to occur when the generator is in use.

[0006] Furthermore, the air inlet of the air filter is arranged toward the working unit. With such an arrangement, the air inlet of the air filter is as far away from the housing as possible, thereby reducing the intake noise at the air inlet of the air filter from diffusing outward through the housing as much as possible, thereby reducing the noise of the entire generator.

[0007] Furthermore, a sound insulation board is fixedly arranged in the air guide channel. With such a configuration, the sound insulation board blocks the propagation of sound in the air guide channel, thereby reducing the noise in the inner cavity of the generator from spreading to the air inlet window through the air guide channel, thereby reducing the noise of the generator spreading to the outside.

[0008] Furthermore, one end of the air guide passage facing the air inlet of the air filter is located below the air inlet of the air filter. With such a configuration, the air inlet of the air filter is not directly opposite to the air guide passage, thereby reducing the volume of the air intake noise generated at the air inlet of the air filter transmitted to the air guide passage, thereby reducing the air intake noise at the air inlet of the air filter diffused to the outside through the air guide passage, which is beneficial to reducing the noise diffused to the outside by the generator.

[0009] Furthermore, an air intake guide cover is arranged below the air filter, and the air guide channel is formed between the air intake guide cover and the base. With such an arrangement, it is convenient to form the air guide channel by processing, thereby helping to reduce the difficulty of processing and manufacturing.

[0010] Furthermore, the working unit is connected to the base through the shock absorbing unit, and the base is provided with an air inlet connected to the air inlet window and facing the shock absorbing unit. With such a configuration, the air outside the generator acts on the shock absorbing unit after passing through the air inlet window and the air inlet in sequence, and the temperature of the air outside the generator is lower than that of the inner cavity of the generator, so that the air at the air inlet acting on the shock absorbing unit has a cooling effect on the shock absorbing unit, which is beneficial to reducing the influence of the heat generated by the working unit on the shock absorbing unit, thereby extending the service life of the shock absorbing unit.

[0011] Furthermore, a guide channel connected to the air inlet window is formed between the base and the shell, and the air inlet is connected to the guide channel and is staggered with the air inlet window. Such a setting is conducive to reducing the noise in the inner cavity of the generator from directly spreading from the air inlet window after passing through the air inlet, thereby reducing the noise of the generator spreading to the outside.

[0012] Furthermore, a connection hole is provided on the shell, and an auxiliary air inlet communicating with the inner cavity is provided on the hole wall of the connection hole. With such a configuration, the auxiliary air inlet is used to take in air from the outside of the shell, thereby improving the heat dissipation performance of the entire generator. At the same time, the auxiliary air inlet is located on the inner wall of the connection hole, which can reduce the visual perception of the auxiliary air inlet by the user and reduce the impact of the auxiliary air inlet on the appearance of the generator.

[0013] Furthermore, the upper part of the shell is provided with a fuel tank mounting hole, and an oil drain groove is provided around the fuel tank mounting hole, and the fuel drain groove is provided with a downwardly inclined guide surface, and a guide structure is fixedly provided at the lower end of the guide surface, and a fuel stopper cavity is provided between the guide structure and the outer wall of the shell, and the fuel drain groove and the guide structure are integrally formed with the shell. With such a configuration, the fuel overflowing from the fuel filling port of the fuel tank can be collected in the fuel drain groove and flow along the guide surface to the guide structure. At the same time, the fuel stopper cavity prevents the fuel from flowing from the guide structure to the shell, so that the fuel drips from the guide structure, avoiding the fuel from entering the inner cavity of the generator from the joint surface of the shell to cause safety hazards.

[0014] In order to better prevent the fuel from entering the interior of the housing, the guide structure is a guide eave extending downward.

[0015] Furthermore, the shell is provided with a maintenance port, a maintenance door is detachably connected to the maintenance port, a boss is fixedly provided on the edge of the maintenance door, a groove corresponding to the boss is provided on the shell, and a disassembly operation cavity is formed between the boss and the inner wall of the groove. With such a configuration, after removing the maintenance door, the internal part of the generator can be maintained through the maintenance port without removing the entire shell, thereby improving the maintainability of the generator; at the same time, the disassembly operation cavity formed by the boss and the groove makes it convenient to apply a force to the boss through the disassembly operation cavity, thereby facilitating the separation of the maintenance door from the shell, thereby facilitating the disassembly operation of the maintenance door.

[0016] Furthermore, the maintenance door is connected to the housing through a rotary connector, and the groove has an operating space for fingers to directly act on the disassembly operation cavity. With such a configuration, after the rotary connector is directly twisted by hand, the connection between the maintenance door and the housing is lost, and then the fingers are used to apply force to the boss at the disassembly operation cavity through the operating space in the groove, so that the maintenance door is separated from the housing, thereby realizing the removal of the maintenance door from the housing without relying on tools, further improving the convenience of generator maintenance.

[0017] Furthermore, the housing is provided with a panel installation cavity, in which an igniter and a solenoid valve controller are arranged. With such an arrangement, the structure of the whole machine is made more compact.

[0018] Furthermore, an anti-collision pad is fixedly arranged on one side of the panel installation cavity facing the working unit. With such an arrangement, damage to the components in the panel installation cavity caused by the impact of moving and the vibration of operation is reduced, thereby improving the impact resistance of the whole machine.

[0019] Furthermore, the housing is provided with a mounting groove for mounting the electrical components, and the mounting groove is located on the side of the housing where the air inlet window is provided. With such a configuration, the electrical components are mounted on the housing, thereby facilitating the spatial arrangement of the electrical components and facilitating maintenance and other operations. At the same time, the mounting groove is adjacent to the air inlet window, so that the airflow entering from the air inlet window is conveniently used to cool down the electrical components in the mounting groove, thereby reducing the influence of the heat generated by the working unit on the electrical components and preventing the electrical components from being damaged due to overheating.

[0020] A generator, comprising a base and a shell, wherein the base and the shell form an inner cavity of the generator, wherein a working unit and an air filter are arranged in the inner cavity, wherein an air inlet window for connecting 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; wherein the working unit is connected to the base through a shock absorbing unit, wherein an air inlet connected to the air inlet window and facing the shock absorbing unit is arranged on the base; wherein an oil tank mounting hole is arranged on the upper part of the shell, wherein an oil drain groove is arranged around the oil tank mounting hole, wherein the oil drain groove is provided with a guide groove inclined downward A flow surface, a flow guide structure is fixedly provided at the lower end of the flow guide surface, a fuel flow stop cavity is provided between the flow guide structure and the outer wall of the shell; a maintenance port is provided on the shell, a maintenance door is detachably connected to the maintenance port, a boss is fixedly provided on the edge of the maintenance door, a groove corresponding to the boss is provided on the shell, a disassembly operation cavity is formed between the boss and the inner wall of the groove, and the groove has an operating space for fingers to directly act on the disassembly operation cavity; an installation groove for installing electrical components is provided on the shell, and the installation groove is located on a side of the shell where an air inlet window is provided.

[0021] The beneficial effect of this solution is that by adopting such an arrangement, the safety, maintainability and compactness of the generator are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a generator embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a generator embodiment of the present invention facing the panel installation cavity;

[0024] Figure 3 for Figure 2 Right side view with maintenance door omitted;

[0025] Figure 4 This is a schematic diagram of a generator embodiment of the present invention when the upper part of the shell is omitted. DETAILED DESCRIPTION

[0026] The following is further described in detail through specific implementation methods:

[0027] The figure marks in the drawings of the specification include: shell 10, air inlet window 101, oil drain groove 102, guide surface 103, guide eaves 104, fuel stop chamber 105, groove 106, panel installation chamber 107, installation groove 108, maintenance port 109, working unit 11, base 12, fuel tank 13, maintenance door 14, boss 141, air inlet 21, air inlet guide cover 22, air guide channel 221, sound insulation board 23, igniter 31, solenoid valve controller 32, guide channel 41, air inlet 411, shock absorbing unit 42, anti-collision pad 51.

[0028] Example: Figure 1 and Figure 2 As shown, a generator includes a base 12 and a shell 10. The base 12 is located at the bottom of the shell 10. The base 12 and the shell 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. The working unit 11 is connected to the base 12 through a shock absorbing unit 42. An air filter is also arranged in the inner cavity. The air filter is located on the side of the working unit 11, and the air inlet 21 of the air filter is arranged toward the working unit 11. The shell 10 is provided with an air inlet window 101 that connects the inner cavity with the outside world. The air inlet window 101 is preferably arranged at the lower part of the shell 10. An air guide channel 221 ( Figure 1 The arrow in the middle indicates the air flow path). In this 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 guide channel 221 is mainly formed by connecting the air inlet deflector 22 arranged below the air filter and the base 12, one end of the air guide channel 221 is connected to the air inlet window 101, and the other end of the air guide channel 221 is opposite to the air inlet 21 of the air filter, and the end of the air guide channel 221 opposite to the air inlet 21 of the air filter is located at the lower side of the air inlet 21 of the air filter, so that the noise generated at the air inlet 21 of the air filter is directly transmitted to the working unit 11 more and less enters the air guide channel 221, which is beneficial to reduce the noise generated at the air inlet 21 of the air filter from being transmitted to the outside of the shell 10 through the air guide channel 221. A sound insulation board 23 is provided in the air guide channel 221 . In the present embodiment, the sound insulation board 23 and the air intake shroud 22 are integrally formed, so that the sound insulation board 23 can reduce the noise from being transmitted through the air guide channel 221 to the air intake window 101 .

[0029] like Figure 2 As shown, a guide channel 41 ( Figure 2 The arrow in the middle shows the airflow path), specifically, a flange structure located inside the shell 10 is formed at the edge of the base 12, and the space formed between the flange structure and the shell 10 is the guide channel 41. An air inlet 411 connected to the guide channel 41 is opened on the base 12, and the air inlet 411 is staggered with the air inlet window 101, and the air inlet 411 is arranged toward the shock absorbing unit 42.

[0030] like Figure 1As shown, an oil tank 13 is also provided in the inner cavity of the generator, and an oil tank mounting hole for installing the refueling port of the oil tank 13 is provided on the top of the shell 10. An oil drain groove 102 is provided on the shell 10 around the oil tank mounting hole, and the oil drain groove 102 is provided with a guide surface 103 inclined downward, and a guide eave 104 extending downward is provided at the lower end of the guide surface 103. The guide eave 104 is integrally formed with the shell 10, and the guide eave 104 is cantilevered to the outside of the shell 10, so that a fuel stopper cavity 105 is formed between the guide eave 104 and the outer wall of the shell 10, so that the overflowed fuel flows to the guide eave 104 after passing through the oil drain groove 102 and the guide surface 103, and finally drips from the guide eave 104, avoiding the fuel flowing along the shell 10 and entering the inside of the shell 10 from the gap at the parting surface and other positions on the shell 10 to form a safety hazard.

[0031] like Figure 3 As shown, a maintenance port 109 is provided on the housing 10, through which maintenance operations can be performed on the components in the inner cavity of the generator. A maintenance door 14 is detachably connected to the maintenance port 109. In this embodiment, the maintenance door 14 is connected to the housing 10 through a rotating connector, and the rotating connector is rotatably connected to the maintenance door 14. The rotating connector has a cam-shaped locking structure, and a connecting groove matching the cam shape is provided on the housing 10. When the cam-shaped locking structure is inserted into the connecting groove and then rotated 90 degrees, the connection can be achieved. Figure 2 As shown, a boss 141 is integrally formed on the edge of the maintenance door 14, and a groove 106 corresponding to the boss 141 is provided on the shell 10, and a disassembly operation cavity is formed between the boss 141 and the inner wall of the groove 106, and the groove 106 has an operating space for fingers to directly act on the disassembly operation cavity, so that when disassembling the maintenance door 14, the maintenance door 14 can be separated from the shell 10 by directly extending the fingers into the groove 106 to move the boss 141, thereby facilitating the disassembly of the maintenance door 14.

[0032] like Figure 3As shown, a mounting groove 108 for mounting electrical components is provided at the position of the maintenance port 109 on the housing 10, and the mounting groove 108 is located on one side of the housing 10 where the air inlet window 101 is provided. The electrical components in the mounting groove 108 are cooled by the airflow at the air inlet window 101 to prevent the electrical components from being damaged due to overheating. The mounting groove 108 can be used to install electrical components such as batteries, start-stop control circuits or carbon monoxide sensors; the batteries can provide starting current for the start of the generator; the start-stop control circuit facilitates the control of the start and stop of the generator, thereby improving the convenience of the start-stop control of the generator; the carbon monoxide sensor facilitates the monitoring of the carbon monoxide concentration around the generator, thereby improving the safety of the generator. When the maintenance door 14 is connected to the housing 10 and covers the maintenance port 109, the maintenance door 14 also covers the mounting groove 108, thereby achieving the sealing of the electrical components in the mounting groove 108 inside the generator.

[0033] like Figure 2 As shown, the housing 10 is also provided with a panel mounting cavity 107, in which an igniter 31 and a solenoid valve controller 32 are mounted. Figure 4 As shown, an anti-collision pad 51 is provided on the housing 10 on the side of the panel mounting cavity 107 facing the working unit 11. In this embodiment, the anti-collision pad 51 is preferably an anti-collision rubber pad. A connecting hole is provided at the lower part of the housing 10, and a connecting bolt passes through the connecting hole and is connected to the base 12. The connecting hole is in the shape of a stepped hole recessed toward the inner cavity of the generator, and an auxiliary air inlet connected to the inner cavity of the generator is provided on the hole wall of the connecting hole.

[0034] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, 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 practicality of the patent.

Claims

1. A generator, comprising a base and a shell, wherein the base and the shell enclose an inner cavity of the generator, wherein a working unit and an air filter are arranged in the inner cavity, and an air inlet window is arranged on the shell to connect the inner cavity with the outside, characterized in that: An air guide channel is provided between the air inlet of the air filter and the air inlet window; An air intake guide cover is arranged below the air filter, and the air guide channel is formed between the air intake guide cover and the base; The air inlet of the air filter is arranged toward the working unit; and 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.

2. A generator according to claim 1, characterized in that: A sound insulation board is fixedly arranged in the air guiding channel.

3. A generator according to claim 1 or 2, characterized in that: The working unit is connected to the base through the shock absorbing unit, and the base is provided with an air inlet which is connected with the air inlet window and faces the shock absorbing unit.

4. A generator according to claim 3, characterized in that: A guide channel connected to the air inlet window is formed between the base and the shell, and the air inlet is connected to the guide channel and is staggered with the air inlet window.

5. A generator according to claim 1 or 2, characterized in that: The shell is provided with a connecting hole, and the hole wall of the connecting hole is provided with an auxiliary air inlet communicating with the inner cavity.

6. A generator according to claim 1 or 2, characterized in that: A fuel tank mounting hole is provided on the upper portion of the shell, an oil drain groove is provided around the fuel tank mounting hole, the oil drain groove is provided with a guide surface inclined downward, a guide structure is fixedly provided at the lower end of the guide surface, a fuel flow stop cavity is provided between the guide structure and the outer wall of the shell, and the oil drain groove and the guide structure are integrally formed with the shell.

7. A generator according to claim 6, characterized in that: The guide structure is a guide eave extending downward.

8. A generator according to claim 1 or 2, characterized in that: The shell is provided with a maintenance port, to which a maintenance door is detachably connected, a boss is fixedly provided on the edge of the maintenance door, a groove corresponding to the boss is provided on the shell, and a disassembly operation cavity is formed between the boss and the inner wall of the groove.

9. A generator according to claim 8, characterized in that: The maintenance door is connected to the shell body via a rotary connector, and the groove has an operating space for fingers to directly act on the disassembly operation cavity.

10. A generator according to claim 1 or 2, characterized in that: The housing is provided with a panel installation cavity, and an igniter and a solenoid valve controller are arranged in the panel installation cavity.

11. A generator according to claim 10, characterized in that: An anti-collision pad is fixedly arranged on one side of the panel installation cavity facing the working unit.

12. A generator according to claim 1 or 2, characterized in that: The shell is provided with a mounting groove for mounting electrical components, and the mounting groove is located on a side of the shell where an air inlet window is provided.

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

Images