CN111140347A - Mute variable-frequency generator - Google Patents
Mute variable-frequency generator Download PDFInfo
- Publication number
- CN111140347A CN111140347A CN202010134126.3A CN202010134126A CN111140347A CN 111140347 A CN111140347 A CN 111140347A CN 202010134126 A CN202010134126 A CN 202010134126A CN 111140347 A CN111140347 A CN 111140347A
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- CN
- China
- Prior art keywords
- fuel
- shell
- engine
- frequency generator
- variable frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003921 oil Substances 0.000 claims abstract description 44
- 239000000446 fuel Substances 0.000 claims abstract description 43
- 239000000295 fuel oil Substances 0.000 claims abstract description 18
- 230000003584 silencer Effects 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000002828 fuel tank Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
- F02B77/13—Acoustic insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a mute variable frequency generator, which comprises a shell assembly consisting of an upper shell and a lower shell, wherein an engine is arranged in the lower shell, and a silencer and a stator-rotor assembly with a cooling fan are distributed on two sides of the engine; an air guide cover and an air guide cover are arranged in the shell assembly, the air guide cover surrounds the fixed rotor assembly, and the air guide cover surrounds the engine and the silencer; an oil tank, a fuel oil delivery unit and an inverter unit are further arranged in the shell assembly, and the oil tank and the fuel oil delivery unit are arranged on one side of the engine and are far away from the inverter unit. The invention has the advantages of ingenious structural design and reliable use, can increase the volume of the oil tank without increasing the size of the whole machine, ensures the heat radiation performance of the generator, and effectively reduces the fire risk caused by fuel leakage due to the damage of a fuel pipeline; and, because the unique arrangement mode that upper and lower casing integrated into one piece has still reduced manufacturing and assembly cost.
Description
Technical Field
The invention relates to a generator, in particular to a mute variable frequency generator.
Background
Due to the continuous improvement of the material level, the requirements of people on small-sized generator products are not limited to meeting simple power consumption requirements any more, and people put forward higher requirements on the aspects of generator appearance, size, weight, safety and the like. The oil tank of part of the generator is close to the silencer or the electrified part due to space reasons, and although some measures are taken to solve the problems, the problems of cost increase, fire risk and the like are also inevitable. For the structural layout of the generator set with the upper oil tank and the lower engine/generator, the structure has the defects that the oil tank is easily affected by the heat of the engine and is not beneficial to the evaporative emission control of the oil tank. In addition, in the design of the existing small-sized engine generator housing, a housing assembly is formed by a bottom cover and a combined cover or a bottom cover and a housing, and the structure causes the problems of high cost of a housing mold, complex assembly mode and the like.
For example, CN209119951U discloses a utility model named "a portable frequency conversion generator"; the engine comprises a shell, wherein an engine body consisting of a cylinder head cover, a cylinder head, a box cover, an exhaust silencer and a crankcase body with a crankshaft is arranged in the shell, and a stator-rotor assembly with an impeller, which is connected with the engine body, is arranged on one side of the engine body; the shell is internally provided with a cover body and a starting fan cover assembly, the cover body is assembled on the crankcase body through bolts, and a space is formed to surround the engine body, the stator and rotor assembly with the impeller and the exhaust muffler connected to the cylinder head; the starting fan cover assembly is used for coating the rotor assembly; the starting fan cover assembly is tightly matched with the cover body, the crankcase body and the engine cylinder head to form a cooling air channel. The structure is characterized in that an oil tank is arranged above the engine body, two ends of the oil tank are respectively connected with the shell, and the oil tank is fixed on the shell through an oil tank locking nut. With the structure, after the generator runs for a long time or runs and stops under high load, the heat of the engine can be radiated to the oil tank, so that the temperature of the oil in the oil tank is increased, the evaporation of the oil is accelerated, and the pollution to the environment is further intensified.
A utility model patent entitled "engine generator" is disclosed in CN 2695650Y; the engine generator can easily arrange the oil tank, can easily assemble and disassemble the generator, can reduce the number of components, and is not easily affected by heat. The engine generator includes a sound insulation cover that houses: a power generating body; an engine that drives the power generating body; a controller for controlling them; the fuel tank is supplied to the engine, the soundproof cover has a bottom cover and a combination cover arranged on the upper side of the bottom cover, the fuel tank is directly placed on the bottom cover, and the controller is located in the vicinity of the fuel tank and directly placed on the bottom cover. It can be seen from this patent that its shell structure adopts the design of combination cover, is unfavorable for the assembly of generator, and production manufacturing cost is high, because the position interval of oil tank and dc-to-ac converter is relatively close in addition, when appearing the oil tank and breaking and reveal, the electrified part of fuel probably direct contact causes the conflagration risk.
Disclosure of Invention
The invention aims to provide a mute variable frequency generator which is high in safety, good in heat dissipation performance and beneficial to evaporative emission control.
The invention aims to realize the mute variable frequency generator by the technical scheme, the generator comprises a shell assembly consisting of an upper shell and a lower shell, an engine is arranged in the lower shell, and a silencer and a stator-rotor assembly with a cooling fan are distributed on two sides of the engine; an air guide cover and an air guide cover are arranged in the shell assembly, the air guide cover surrounds the stator and rotor assembly, and the air guide cover surrounds the engine and the silencer; the shell assembly is also internally provided with an oil tank, a fuel oil delivery unit and an inverter unit, wherein the oil tank and the fuel oil delivery unit are arranged on one side of the engine and far away from the inverter unit.
In order to simplify the assembly mode of the shell assembly and reduce the die cost of the shell assembly, the lower shell supports the upper shell, and the upper shell and the lower shell are integrally formed.
Wherein, for avoiding the heat radiation of silencer arrives on the oil tank, the oil tank is connected the fuel delivery unit and vertical set up in decide rotor subassembly one side, just the oil tank by at least the casing supports down.
Furthermore, in order to form the separated design of an oil way and a circuit and reduce the fire risk caused by fuel leakage due to the damage of a fuel pipeline, the fuel conveying unit and the inverter unit are oppositely arranged at the oil tank end and are positioned in the shell assemblies at two sides of the engine.
In order to ensure the air intake and internal heat dissipation requirements of the generator, an air intake window A and an air intake window B are further arranged on the lower shell, and the air intake window A corresponds to the vertically arranged inverter unit; the inner wall of the air inlet window B corresponds to the oil tank.
In order to realize the separation of main oil and electric components, the fuel oil delivery unit is arranged in the shell on the opposite side of the air inlet window A.
Furthermore, in order to shorten the circuit connection with the inverter unit and ensure the reliability of the operation of the generator, a control panel is also arranged on the shell assembly and is arranged above the air inlet window A.
In order to timely conduct out heat generated during operation of the engine generator, the shell assembly is further provided with an exhaust window, and the inner wall of the exhaust window corresponds to the silencer.
For improving engine generator's portability, the generator still includes scalable pull rod and walking wheel, scalable pull rod transversely set up in the upper portion of last casing, the walking wheel sets up and is being close to exhaust window one side on the casing down.
In order to facilitate maintenance of a spark plug and a cylinder head of an engine generator, the generator further includes a spark plug maintenance door for maintaining the spark plug and the cylinder head, the spark plug maintenance door being provided on an upper end surface of the upper case.
In order to facilitate air filter and engine oil maintenance of the engine-driven generator, the generator further comprises a maintenance window, and the maintenance window corresponds to the fuel delivery unit.
In the invention, the fuel delivery unit comprises a fuel pump, a fuel pipe, a fuel switch and a fuel filter, and the fuel pump is connected with the fuel switch through the fuel pipe and the fuel filter.
Due to the adoption of the technical scheme, the fuel oil tank has the advantages of ingenious structural design and reliability in use, the volume of the fuel oil tank can be increased without increasing the size of the whole machine, the heat dissipation performance of the generator is ensured, and in addition, the fire risk caused by fuel oil leakage due to the damage of a fuel oil pipeline is effectively reduced due to the arrangement mode of the fuel oil conveying unit and the inverter unit; and, because the unique arrangement mode that upper and lower casing integrated into one piece has still reduced manufacturing and assembly cost.
Drawings
The drawings of the invention are illustrated as follows:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention;
FIG. 3 is a side view of the present invention;
fig. 4 is a schematic structural view of an oil tank, a control panel, and an inverter unit of the engine generator;
FIG. 5 is a schematic structural view of the fuel delivery unit of the present invention;
fig. 6 is a top view of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments will still fall within the scope of the present invention claimed in the claims.
Example 1: as shown in fig. 1, 2, 3, 4, 5, and 6, a silent frequency-variable generator includes a housing assembly 1 composed of an upper housing 1a and a lower housing 1b, an engine 2 is disposed in the lower housing 1b, and a muffler 4 and a stator-rotor assembly 3 with a cooling fan are disposed on both sides of the engine; an air guide cover 5 and an air guide cover 6 are arranged in the shell assembly 1, the air guide cover 5 surrounds the stator-rotor assembly 3, and the air guide cover 6 surrounds the engine 2 and the silencer 4; an oil tank 7, a fuel delivery unit 8 and an inverter unit 9 are further arranged in the shell assembly 1, wherein the oil tank 7 and the fuel delivery unit 8 are arranged on one side of the engine 2 and are far away from the inverter unit 9.
In the invention, the air guide cover 6 surrounds the engine 2 and the silencer 4, and forms a cooling airflow channel for cooling the stator and rotor assemblies 3, the engine 2 and the silencer 4 by combining with the air guide cover 5, and when a generator runs, a cooling fan surrounded in the air guide cover 5 forms forced cooling airflow so as to radiate each part; the structure that the oil tank 7 and the fuel oil delivery unit 8 are far away from the inverter unit 9 enables the oil circuit to be separated from the circuit, and reduces the fire risk caused by the fact that the fuel oil leaks directly contact with the live circuit due to the fact that the fuel oil pipe 19 is broken.
In order to simplify the assembly of the housing assembly, the lower housing 1b supports the upper housing 1a, and the upper housing 1a and the lower housing 1b are integrally formed.
In order to prevent the heat of the muffler 4 from radiating to the oil tank 7, the oil tank 7 is connected to the fuel delivery unit 8 and vertically disposed on one side of the stator-rotor assembly 3, and the oil tank 7 is at least supported by the lower case 1 b.
In order to realize the separation of main oil and electric components, the fuel delivery unit 8 and the inverter unit 9 are arranged in the shell assembly 1 at the end of the fuel tank 7 and at two sides of the engine 2.
In order to ensure the air intake and internal heat dissipation requirements of the generator, an air intake window a10 is arranged on the shell, and the inverter unit 9 is arranged in the shell assembly 1 on one side of the air intake window a10, wherein the inverter unit 9 is vertically arranged so as to increase the contact area between the inverter unit 9 and air and avoid damage caused by high temperature; in order to further increase the intake of the generator of the engine 2 and reduce the operation temperature, the shell is provided with an air inlet window B11, and one side of the air inlet window B11 corresponds to the oil tank 7.
Further, in order to achieve separation of main oil and electric components, the fuel delivery unit 8 is disposed in the housing on the opposite side of the intake window a 10.
In order to shorten the circuit connection with the inverter unit 9 and ensure the reliability of the generator operation, a control panel 12 is further disposed on the housing assembly 1, and the control panel 12 is disposed above the air inlet window a 10.
In order to timely guide out heat generated during the operation of the engine generator, the shell assembly 1 is further provided with an exhaust window 13, and the inner wall of the exhaust window 13 corresponds to the silencer 4.
For the portability that improves engine generator, the convenient removal, the generator still includes scalable pull rod 14 and walking wheel 15, scalable pull rod 14 transversely set up in go up the upper portion of casing 1a, walking wheel 15 sets up and is being close to exhaust window 13 one side on the casing 1b down.
In order to facilitate maintenance of the spark plug and the cylinder head of the engine generator, the generator further includes a spark plug maintenance door 16 for maintaining the spark plug and the cylinder head, the spark plug maintenance door 16 being provided on an upper end surface of the upper case 1 a.
In order to facilitate air filter maintenance and engine oil maintenance of the engine generator, the generator further comprises a maintenance window 17, and the maintenance window 17 corresponds to the fuel delivery unit 8.
In the present invention, the fuel delivery unit 8 includes a fuel pump 18, a fuel pipe 19, a fuel switch 20 and a fuel filter 21, and the fuel pump 18 is connected with the fuel switch 20 through the fuel pipe 19 and the fuel filter 21.
Claims (12)
1. A silence variable frequency generator, characterized by: the generator comprises a shell assembly (1) consisting of an upper shell (1 a) and a lower shell (1 b), wherein an engine (2) is arranged in the lower shell (1 b), and a silencer (4) and a stator-rotor assembly (3) with a cooling fan are distributed on two sides of the engine; an air guide cover (5) and an air guide cover (6) are arranged in the shell assembly (1), the air guide cover (5) surrounds the fixed rotor assembly (3), and the air guide cover (6) surrounds the engine (2) and the silencer (4); an oil tank (7), a fuel oil delivery unit (8) and an inverter unit (9) are further arranged in the shell assembly (1), and the oil tank (7) and the fuel oil delivery unit (8) are arranged on one side of the engine (2) and far away from the inverter unit (9).
2. A silent variable frequency generator as claimed in claim 1, wherein: the lower shell (1 b) supports the upper shell (1 a), and the upper shell (1 a) and the lower shell (1 b) are integrally formed.
3. A silent variable frequency generator as claimed in claim 2, wherein: the oil tank (7) is connected with the fuel oil delivery unit (8) and is vertically arranged on one side of the stator-rotor assembly (3), and the oil tank (7) is at least supported by the lower shell (1 b).
4. A silent variable frequency generator as claimed in claim 3, wherein: the fuel oil conveying unit (8) and the inverter unit (9) are arranged at the end of the oil tank (7) oppositely and are positioned in the shell assembly (1) on two sides of the engine (2).
5. A silent variable frequency generator as claimed in claim 4, wherein: an air inlet window A (10) and an air inlet window B (11) are further arranged on the lower shell (1B), and the air inlet window A (10) corresponds to the vertically arranged inverter unit (9); the inner wall of the air inlet window B (11) corresponds to the oil tank (7).
6. A silent variable frequency generator as claimed in claim 5, wherein: the fuel oil delivery unit (8) is arranged in the shell on the opposite side of the air inlet window A (10).
7. The silent variable frequency generator according to claim 6, wherein: the shell assembly (1) is further provided with a control panel (12), and the control panel (12) is arranged above the air inlet window A (10).
8. A silent variable frequency generator as claimed in claim 7, wherein: the shell assembly (1) is further provided with an exhaust window (13), and the inner wall of the exhaust window (13) corresponds to the silencer (4).
9. A silent variable frequency generator according to any one of claims 1 to 8, wherein: the generator further comprises a telescopic pull rod (14) and a walking wheel (15), the telescopic pull rod (14) is transversely arranged on the upper portion of the upper shell (1 a), and the walking wheel (15) is arranged on the lower shell (1 b) close to one side of the exhaust window (13).
10. A silent variable frequency generator as claimed in claim 9, wherein: the generator further comprises a spark plug maintenance door (16) used for maintaining a spark plug and a cylinder head, and the spark plug maintenance door (16) is arranged on the upper end face of the upper shell (1 a).
11. A silent variable frequency generator as claimed in claim 10, wherein: the generator further comprises a maintenance window (17), and the maintenance window (17) corresponds to the fuel delivery unit (8).
12. A silent variable frequency generator as claimed in claim 11, wherein: the fuel delivery unit (8) comprises a fuel pump (18), a fuel pipe (19), a fuel switch (20) and a fuel filter (21), and the fuel pump (18) is connected with the fuel switch (20) through the fuel pipe (19) and the fuel filter (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134126.3A CN111140347A (en) | 2020-03-02 | 2020-03-02 | Mute variable-frequency generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134126.3A CN111140347A (en) | 2020-03-02 | 2020-03-02 | Mute variable-frequency generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111140347A true CN111140347A (en) | 2020-05-12 |
Family
ID=70528206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010134126.3A Pending CN111140347A (en) | 2020-03-02 | 2020-03-02 | Mute variable-frequency generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111140347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175371A (en) * | 2021-03-26 | 2021-07-27 | 重庆鼎工机电有限公司 | Silent diesel engine capable of realizing miniaturization and lightweight |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005299601A (en) * | 2004-04-15 | 2005-10-27 | Yanmar Co Ltd | Non-utility generation device |
| CN101975107A (en) * | 2010-07-06 | 2011-02-16 | 上海狮虎能源科技发展有限公司 | Single-power driven double-generator set using electric injection system |
| WO2013060161A1 (en) * | 2011-10-23 | 2013-05-02 | 浙江乐恒动力科技有限公司 | Box-type generator driven by engine |
| US20160281581A1 (en) * | 2015-03-26 | 2016-09-29 | Honda Motor Co., Ltd. | Engine-driven generator |
| CN109639029A (en) * | 2018-12-27 | 2019-04-16 | 重庆宗申通用动力机械有限公司 | A kind of portable frequency conversion generator |
| CN110410205A (en) * | 2018-04-26 | 2019-11-05 | 顾启华 | A kind of super-silent generating set of miniature high-speed |
| CN211737285U (en) * | 2020-03-02 | 2020-10-23 | 重庆宗申通用动力机械有限公司 | Mute variable-frequency generator |
-
2020
- 2020-03-02 CN CN202010134126.3A patent/CN111140347A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005299601A (en) * | 2004-04-15 | 2005-10-27 | Yanmar Co Ltd | Non-utility generation device |
| CN101975107A (en) * | 2010-07-06 | 2011-02-16 | 上海狮虎能源科技发展有限公司 | Single-power driven double-generator set using electric injection system |
| WO2013060161A1 (en) * | 2011-10-23 | 2013-05-02 | 浙江乐恒动力科技有限公司 | Box-type generator driven by engine |
| US20160281581A1 (en) * | 2015-03-26 | 2016-09-29 | Honda Motor Co., Ltd. | Engine-driven generator |
| CN110410205A (en) * | 2018-04-26 | 2019-11-05 | 顾启华 | A kind of super-silent generating set of miniature high-speed |
| CN109639029A (en) * | 2018-12-27 | 2019-04-16 | 重庆宗申通用动力机械有限公司 | A kind of portable frequency conversion generator |
| CN211737285U (en) * | 2020-03-02 | 2020-10-23 | 重庆宗申通用动力机械有限公司 | Mute variable-frequency generator |
Non-Patent Citations (1)
| Title |
|---|
| 吴建亮;: "静音汽油机发电机组通风散热以及噪声研究", 内燃机与配件, no. 24, 30 December 2019 (2019-12-30), pages 73 - 74 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175371A (en) * | 2021-03-26 | 2021-07-27 | 重庆鼎工机电有限公司 | Silent diesel engine capable of realizing miniaturization and lightweight |
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