WO2015103798A1 - 双通道风冷式小型汽油发电机 - Google Patents

双通道风冷式小型汽油发电机 Download PDF

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Publication number
WO2015103798A1
WO2015103798A1 PCT/CN2014/071037 CN2014071037W WO2015103798A1 WO 2015103798 A1 WO2015103798 A1 WO 2015103798A1 CN 2014071037 W CN2014071037 W CN 2014071037W WO 2015103798 A1 WO2015103798 A1 WO 2015103798A1
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Prior art keywords
air
hood
gasoline generator
cooled
small gasoline
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PCT/CN2014/071037
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English (en)
French (fr)
Inventor
蒋坚
Original Assignee
蒋坚
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Publication of WO2015103798A1 publication Critical patent/WO2015103798A1/zh

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Classifications

    • 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
    • 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
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted fans
    • 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
    • F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
    • F02B63/048—Portable engine-generator combinations

Definitions

  • the invention relates to a gasoline generator, in particular to a dual-channel air-cooled small gasoline generator. Background technique
  • Forced air-cooled generator sets require sufficient cold air to cool the various high-heating parts of the generator set, such as engine cylinder heads, crankcases, permanent magnet generators and mufflers, while meeting the increasing environmental requirements. Therefore, the overall requirement is that the appearance is beautiful, the pollution is low, the energy consumption is low, and the space utilization rate is high.
  • the closed configuration that is, the various functional components of the generator set are placed in a closed cabinet, so that the relatively complex air duct system can be used to meet the heat dissipation requirements of the generator set, and it can also satisfy people.
  • Environmental requirements and aesthetics but the manufacturing cost is relatively high, the commodity price is high, the production process is more complicated, and it is not suitable for mass production.
  • the internal independent cooling system is used, that is, the engine, magneto, muffler, cooling fan
  • the components are contained in a separate cooling air duct system, and then the entire cooling system is contained in the enclosed cabinet, which improves the shortcomings of the above two models, greatly improves the product's sex ratio, and satisfies people's environmental protection. And aesthetic requirements, and the production process is relatively simple Suitable for mass production.
  • the requirements for the cooling system of the whole machine are high, and it is necessary to combine the research and development of many disciplines such as modern computational fluid dynamics technology and heat transfer.
  • the genset cooling device is usually a fully enclosed cooling ventilating chamber, and the cooling air is single-in and out, that is, the cooling hood and the cooling ventilating hood are used to drive the engine, the generator, and the exhaust.
  • the whole of the tube and the muffler are completely contained, and the entire surface of the above-mentioned components is cooled by the cooling air sucked in by the suction fan, and then discharged out of the cavity through the exhaust groove.
  • This are not many types of cooling structure joints, and the cooling ventilating cavity is easy to ensure the sealing requirements, but it can't guarantee the place where the engine generates a large amount of heat, such as around the engine cylinder, the snorkel, and the hair.
  • An object of the present invention is to provide a slave channel air-cooled small gasoline generator which has low noise and can form a better cooling effect in response to the above problems.
  • a dual-channel air-cooled small gasoline generator comprising a chassis and an engine assembly, a muffler and a magnet assembly having a fan disposed in the chassis, the method further comprising:
  • the cover is disposed on the engine assembly
  • the air duct has one end that abuts the first air hood and the other end of which is connected to the outside; the second air hood is disposed on the muffler, and the second air hood is provided with an air outlet that communicates with the outside;
  • the third air guiding cover is disposed on the magnetic motor assembly, and the third air guiding cover further communicates with the second air guiding cover.
  • both ends of the muffler have a hemispherical shape.
  • the width of the air outlet matches the width of the muffler, and both ends of the air outlet width are curved.
  • the air passage is connected to the lower side of the second air hood.
  • the first air guiding cover includes a first portion and a second portion which are disposed in sequence, and the first portion is covered on the hand tray of the engine assembly, and the second portion is covered on the engine assembly. On the cylinder head.
  • the first air hood is disposed on the chassis corresponding to the first air hood, and the second air vent is disposed corresponding to the air outlet and the air passage.
  • the inner wall of the above casing is further covered with a sound absorbing material.
  • the novel air-cooled on-board gasoline generator of the present invention combines modern computational fluid dynamics and heat transfer technology, and adopts two independent cooling air ducts respectively for the engine assembly with larger heat generation. , magneto motor assembly and silencer Cooling, and the two cooling winds are reasonably isolated and do not interfere with each other.
  • the intake air volume of the cooling air is increased, and on the other hand, the engine temperature is too high due to the poor cooling effect of the existing models on the market.
  • the problem of excessive power loss has effectively reduced the high-efficiency cooling of the engine and its power thermal attenuation, and the high-efficiency output of the magnetic motor, thus ensuring high-efficiency operation of the generator, good sealing of the air duct and good noise. Isolation effect.
  • Fig. 1 is a structural exploded view of a slave passage air-cooled small gasoline generator of the present invention.
  • Fig. 2 is a schematic view showing the structure of an internal independent system of a two-channel air-cooled small gasoline generator of the present invention at an angle.
  • Fig. 3 is a structural schematic view showing the internal independent system of the two-channel air-cooled small gasoline generator of the present invention at another degree.
  • Fig. 4 is a perspective view showing the appearance of a two-channel air-cooled small gasoline generator of the present invention.
  • Figure 5 is a schematic view of the appearance of the air-cooled small gasoline generator of the present invention.
  • Fig. 6 is a structural exploded view of the first air hood and the second air hood of the dual air-cooled small gasoline generator of the present invention at an angle.
  • Fig. 7 is a structural exploded view showing the first air hood and the second air hood of the two-channel air-cooled small gasoline generator of the present invention at another degree.
  • FIG. 8 is a schematic diagram of the cooling wind direction of the dual-channel air-cooled small gasoline generator of the present invention.
  • FIG. 9 is a schematic diagram of the cooling wind direction of the dual-channel air-cooled small gasoline generator of the present invention. Schematic diagram of the cooling wind direction of a gasoline generator.
  • Chassis 1 1. First air duct 12. Second air duct 13. Slide cover 14. Access door 15. Base plate 2.
  • Engine assembly 21. First air deflector 211. The first part 212.
  • the second part 22. The hand gripper 23' cylinder head 3.
  • a first embodiment of a dual-channel air-cooled small gasoline generator includes a chassis 1 and an engine assembly disposed in the chassis 1. 2.
  • the chassis 1 is further provided with a sliding cover 13 and an access door 14, the generator further comprising: a first air guiding cover 21, The cover is disposed on the engine assembly 2; the air passage 32 has one end that abuts the first air hood 21 and the other end of which is connected to the outside; the second air hood 31 is disposed on the muffler 3, the second An air outlet 311 is formed on the air hood 31.
  • the third air hood 41 is disposed on the magnet assembly 4, and the third air hood 41 is further connected to the second air hood 31. It may be formed by docking through openings 312, 411.
  • the new air-cooled on-board gasoline generator combines modern computational fluid dynamics and heat transfer technology, and uses two independent cooling air ducts to cool the engine assembly, the magneto motor assembly and the muffler, which generate a large amount of heat. And the two cooling winds are reasonably isolated, not more than one thousand, and the air volume of the cooling air is increased. On the other hand, the engine temperature is too high due to the poor cooling effect of the existing models on the market.
  • the two ends of the muffler 3 are designed in a hemispherical shape, which can effectively reduce The cooling effect of the cooling air on the muffler is enhanced by the resistance to the cooling wind passing therethrough.
  • the width of the air outlet 31 1 matches the width of the muffler 3.
  • the two ends of the air outlet 31 1 in the width direction are curved, and the cold passing through the vicinity thereof can be further reduced on the basis of the second embodiment described above.
  • the resistance of the wind, from; further enhances the cooling effect of the cooling wind on the muffler.
  • the air duct 32 is connected to the second Below the air hood 3 !, it can be integrated, which can facilitate the installation layout of the entire internal independent system.
  • the first air hood 21 includes the first A portion 21 1 and a second portion 212 are covered on the hand tray 22, and the second portion 212 is overlaid on the cylinder head 23.
  • the first air hood is corresponding to the first air hood on the chassis 1.
  • 21 is provided with a first air duct 11, a corresponding air outlet 31 1 and a duct 32 provided with a second air duct 22.
  • the inner wall of the casing is further covered with a sound absorbing material (not shown), and the sound absorbing material can be Use materials such as sound-absorbing cotton to achieve further noise reduction.
  • the cooling air A first cools the frequency conversion module 5, and then enters the first portion 211 of the first air hood 21 through the hand tray 22, and then in the second portion 212. Cooling the engine block and the cylinder head, and then discharging the cooling system through the air passage 32 under the second windshield 31; the cooling air B mixes a part of the high temperature gas inside the casing i under the action of the fan 42 of the magneto-motor assembly 4. After entering the third air hood 41, after the magnetic motor assembly 4 is cooled by the dance, it enters the second air hood 31, fully cools the muffler 3, and then discharges the cooling system through the air outlet 3 ii, which is cooled with the cooling air. A does not interfere with each other, and after the two cooling airs are completely isolated, the optimal cooling state is achieved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)
  • Wind Motors (AREA)
  • Exhaust Silencers (AREA)

Abstract

一种双通道风冷式小型汽油发电机，包括机箱（1）以及设置在机箱内的发动机总成（2）、消声器（3）和具有风扇的磁电机总成（4），其还包括：第一导风罩（21），其包覆设置于发动机总成（2）上；风道（32），其一端对接第一导风罩（21）、相对的另一端连通外部；第二导风罩（31），其包覆设置于消声器（3）上，第二导风罩（31）上开设有一连通外部的出风口（311）；第三导风罩（41），其包覆设置于磁电机总成（4）上，第三导风罩（41）还连通第二导风罩（31）。该发电机中，发动机冷却效率高且其功率热衰减有效降低，磁电机输出高效，从而保证了发电机的高效率运转，密封的风道还使得噪声隔离效果好。

Description

双通遒凤冷式小型汽油发电机
Figure imgf000003_0001
本发明涉及一种汽油发电机， 特别涉及一种双通道风冷式小型汽 油发电机。 背景技术
强制风冷式发电机組， 要求有足够多冷空气冷却发电机組的各个 高发热部分如发动机缸头、 曲轴箱体， 永磁发电机和消声器等， 同时 又要满足日益提高的环保要求， 故要求整体具有外观美观、 污染少、 能耗低、 空间利用率高等特点。
现有的 Ψ型发电机组的整体配置中，主要采用三种配置方式：一、 开架式配置， 这样可以最大限度的满足发电机组的散热要求， 制造成 本低廉， 但是不能满足低噪声和环境污染指标的要；二、封闭式配置， 即把发电机組的各个功能性組件置于一个封闭的机柜内， 这样可以通 过比较复杂的风道系统， 达到发电机組的散热要求， 而且也可以满足 人们对环保的要求和审美观， 但是制造成本比较高昂， 商品价格高， 生产工艺比较复杂， 不太适用于大批量生产； 三、 内部采用独立的冷 却系统， 即将发动机、 磁电机、 消声器、 冷却风扇等部件包容在一个 独立的冷却风道系统内部， 然后用封闭式机柜将整个冷却系统包容其 中， 改善了以上两种机型配置的缺点， 大大提高了产品的性伧比， 满 足了人们对环保和美观的要求， 而且生产工艺较简单， 适宜大批量生 产。 但是， 对于整机冷却系统要求较高， 要结合现代计算流体力学技 术、 传热学等多门学科研发试验。
另外， 在已有技术中， 小心发电机组冷却装置通常是采用全包围 式冷却通风腔， 冷却风单进羊出， 即用冷却风罩和冷却通风腔导风罩 把发动机、 发电机、 排气管、 消声器整体的全包容， 通过吸冷风扇吸 进的冷却风对上述部件全表面进行冷却， 后通过排气槽排出腔外。 此 种冷却构造结合面不多， 所构成的冷却通风腔较易保证密封要求， 但 无法保证对发动机发热量大的地方， 如发动机气缸周围、 棑气管、 发
本发明的目的就是针对上述问题， 提供一种噪音低且可以形成更 佳冷却效果的奴通道风冷式小型汽油发电机。
为了实现上述目的， 本发明提供了以下技术方案： 双通道风冷式 小型汽油发电机， 包括机箱以及设置于该机箱内的发动机总成、 消声 器和具有风扇的磁电机总成， 其还包括：
第一导风罩， 其包覆设置于上述发动机总成上；
风道， 其一端对接上述第一导风罩、 相对的另一端连通外部； 第二导风罩， 其包覆设置于上述消声器上， 该第二导风罩上开设 有一连通外部的出风口；
第三导风罩， 其包覆设置于上述磁电机总成上， 该第三导风罩还 连通上述第二导风罩。
优选地， 上述消声器的两端呈半球形状。
优选地， 上述出风口的宽度匹配上述消声器的宽度， 该出风口宽 度方向上的两端呈弧形。
优选地， 上述风道连接于上述第二导风罩的下方。
优选地， 上述第一导风罩包括依次设置的第一部分和第二部分， 该第一部分包覆设置于上述发动机总成的手拉盘上， 该第二部分包覆 设置于上述发动机总成的缸头上。
优选地， 上述机箱上对应上述第一导风罩设置有第一风槽、 对应 上述出风口和风道设置有第二风槽。
优选地， 上述机箱的内壁上还覆盖有吸音材料。
采用以上技术方案的有益效果在于： 本发明的新型风冷式车载汽 油发电机结合现代计算流体力学和传热学技术， 采用了两个独立的冷 却风道分别对发热量较大的发动机总成、 磁电机总成和消音器等进行 冷却， 且两股冷却风作了合理的隔离， 互不干扰， 一方面加大了冷却 风的进风量， 另一方面解决了市场上现有机型冷却效果不佳而导致的 发动机温度过高、 功率损失过大的问题， 做到了对发动机的高效率冷 却及其功率热衰减的有效降低、 磁电机的高效输出， 从而保证发电机 的高效率运转， 密封良好的风道还有良好的噪声隔离效果。 附图说明
图 1 是本发明的奴通道风冷式小型汽油发电机的结构分解示意 图 2是本发明的双通道风冷式小型汽油发电机的内部独立系统在 一角度下的结构示意图。
图 3是本发明的双通道风冷式小型汽油发电机的内部独立系统在 另一 度下的结构示意图。
图 4是本发明的双通道风冷式小型汽油发电机的外观示意图 1。 图 5是本发明的议通道风冷式小型汽油发电机的外观示意图 2。 图 6是本发明的双通道风冷式小型汽油发电机的第一导风罩和第 二导风罩在一角度下的结构分解示意图。
图 7是本发明的双通道风冷式小型汽油发电机的第一导风罩和第 二导风罩在另一 度下的结构分解示意图。
图 8是本发明的双通道风冷式小型汽油发电机的冷却风走向示意 图 9是本发明的双通道风冷式小型汽油发电机的冷却风走向示意 图 10 是本发明的议通道风冷式小型汽油发电机的冷却风走向示 意图 3。
其中， 1.机箱 1 1.第一风槽 12。第二风槽 13.滑盖 14.检修门 15. 底板 2.发动机总成 21.第一导风罩 211。第一部分 212.第二部分 22. 手拉盘 23'缸头 3.消声器 31.第二导风罩 31 L出风口 312。开口 32. 风道 4,磁电机总成 41.第三导风罩 411开口 42.风扇 5,变频模块 6. 油箱
下面结合附图详细说明本发明的优选实施方式。
为了实现本发明的目的， 如图 1 7所示， 本发明所涉及的双通道 风冷式小型汽油发电机的第一种实施方式中， 其包括机箱 1以及设置 于机箱 1 内的发动机总成 2、 消声器 3、 变频模块 5、 油箱 6和具有风 扇 42的磁电机总成 4， 机箱 1上还设置有滑盖 13和检修门 14， 该发 电机还包括： 第一导风罩 21 , 其包覆设置于发动机总成 2 上； 风道 32, 其一端对接第一导风罩 21、 相对的另一端连通外部； 第二导风罩 31 , 其包覆设置于消声器 3上， 该第二导风罩 31 上开设有一连通外 部的出风口 311 ; 第三导风罩 41 , 其包覆设置于磁电机总成 4上， 该 第三导风罩 41还连通第二导风罩 31 , 具体可以是通过开口 312、 411 对接形成。 本新型风冷式车载汽油发电机结合现代计算流体力学和传 热学技术， 采用了两个独立的冷却风道分别对发热量较大的发动机总 成、磁电机总成和消音器等进行冷却，且两股冷却风作了合理的隔离， 互不千 ·¾, 方面加大了冷却风的进风量， 另一方面解决了市场上现 有机型冷却效果不佳而导致的发动机温度过高、 功率损失过大的问 题， 做到了对发动机的高效率冷却及其功率热衰减的有效降低、 磁电 机的高效输出， 从而保证发电机的高效率运转， 密封良好的风道还有 良好的噪声隔离效果。
为了形成更高的冷却效率， 如图 1所示， 本发明的所涉及的双通 道风冷式小型汽油发电机的第二种实施方式中， 消声器 3的两端设计 呈半球形状， 可以有效减少对通过其附近的冷却风的阻力， 从而增强 冷却风对消声器的冷却效果。
为了形成更高的冷却效率， 如图 3和 7所示， 本发明的所涉及的 双通道风冷式小型汽油发电机的第三种实施方式中， 出风口 31 1的宽 度匹配消声器 3的宽度， 该出风口 31 1宽度方向上的两端呈弧形， 可 以在上述第二种实施方式的基础上进一步地减少对通过其附近的冷 却风的阻力， 从; 进一步地增强冷却风对消声器的冷却效果。
为了形成更高的冷却效率， 如图 1、 3、 6和 7所示， 本发明的所 涉及的双通道风冷式小型汽油发电机的第四种实施方式中， 风道 32 连接于第二导风罩 3 ! 的下方， 具体可以采用一体成型的方式， 这样 可以便于整个内部独立系统的安装布局。
为了形成更高的冷却效率， 如图 1和 2所示， 本发明的所涉及的 双通道风冷式小型汽油发电机的第五种实施方式中， 第一导风罩 21 包括依次设置的第一部分 21 1和第二部分 212, 该第一部分 21 1 包覆 设置于手拉盘 22上， 该第二部分 212包覆设置于缸头 23上。
为了形成更高的冷却效率， 如图 1、 4和 5所示， 本发明的所涉 及的双通道风冷式小型汽油发电机的第六种实施方式中， 机箱 1上对 应第一导风罩 21设置有第一风槽 11、对应出风口 31 1和风道 32设置 有第二风槽 22。
为了形成更高的冷却效率， 本发明的所涉及的双通道风冷式小型 汽油发电机的第七种实施方式中， 机箱的内壁上还覆盖有吸音材料 (未示出） ， 该吸音材料可以采用吸音棉等材料， 达到进一步降低噪 音的目的。
下面介绍本发明的工作过程： 如图 8-10所示， 冷却风 A首先冷 却变频模块 5，然后通过手拉盘 22进入第一导风罩 21的第一部分 211 中， 接着在第二部分 212的作用下冷却发动机缸体和缸头， 然后经第 二风罩 31下的风道 32排出冷却系统；冷却风 B在磁电机总成 4的风 扇 42的作用下混合一部分机箱 i内部的高温气体进入第三导风罩 41， 在给磁电机总成 4有舞对性地冷却后， 进入第二导风罩 31 中， 充分 冷却消声器 3后通过出风口 3 i i排出冷却系统，其与冷却风 A互不干 扰， 将两股冷却风完全隔离后， 达到最佳冷却状态。
以上所述的仅是本发明的优选实施方式， 应当指出， 对于本领域 的普通技术人员来说， 在不脱离本发明创造构思的前提下， 还可以做 出若干变形和改进， 这些都属于本发明的保护范围。

Claims

1. 双通道风冷式 Ψ型汽油发电机， 包括机箱以及设置于所述机箱内 的发动机总成、 消声器和具有风扇的磁电机总成， 其特征在于： 还包括： 第一导风罩， 其包覆设置于所述发动机总成上；
风道， 其一端对接所述第一导风罩、 相对的另一端连通外部； 第二导风罩， 其包覆设置于所述消声器上， 所述第二导风罩上开设 有一连通外部的出风口；
第三导风罩， 其包覆设置于所述磁电机总成上， 所述第三导风罩还 连通所述第二导风罩。
2. 根据权利要求 1所述的双通道风冷式小型汽油发电机， 其特征在 于： 所述消声器的两端呈半球形状。
3. 根据权利要求 1 或 2所述的双通道风冷式小型汽油发电机， 其特 征在于： 所述出风口的宽度匹配所述消声器的宽度， 所述出风口宽度方 向上的两端呈孤形。
4. 根据权利要求 1所述的双通道风冷式小型汽油发电机， 其特征在 于： 所述风道连接于所述第二导风罩的下方。
5. 根据权利要求 1或 4所述的双通道风冷式小型汽油发电机， 其特 征在于： 所述第一导风罩包括依次设置的第一部分和第二部分， 所述第 —部分包覆设置于所述发动机总成的手拉盘上， 所述第二部分包覆设置 于所述发动机总成的缸头上。
6. 根据权利要求 1所述的双通道风冷式小型汽油发电机， 其特征在 于： 所述机箱上对应所述第一导风罩设置有第一风槽、 对应所述出风口 和风道设置有第二风槽。
7. 根据权利要求 1 或 6所述的双通道风冷式小型汽油发电机， 其特 征在于： 所述机箱的内壁上还覆盖有吸音材料。
PCT/CN2014/071037 2014-01-07 2014-01-21 双通道风冷式小型汽油发电机 WO2015103798A1 (zh)

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