WO2015039402A1 - 一种无叶风扇的喷嘴 - Google Patents

一种无叶风扇的喷嘴 Download PDF

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Publication number
WO2015039402A1
WO2015039402A1 PCT/CN2014/000267 CN2014000267W WO2015039402A1 WO 2015039402 A1 WO2015039402 A1 WO 2015039402A1 CN 2014000267 W CN2014000267 W CN 2014000267W WO 2015039402 A1 WO2015039402 A1 WO 2015039402A1
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Prior art keywords
nozzle
channel
port
bladeless fan
nozzle body
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PCT/CN2014/000267
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English (en)
French (fr)
Inventor
应辉
Original Assignee
应辉
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Publication of WO2015039402A1 publication Critical patent/WO2015039402A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/463—Arrangements of nozzles with provisions for mixing

Definitions

  • the invention relates to the field of fans, and in particular to a nozzle without a leaf fan.
  • the design of the bladeless fan nozzle is mostly an annular nozzle provided with an annular passage for receiving the base airflow and an annular exhaust port for injecting the base airflow, and is also provided for guiding the outside air to the vicinity of the annular exhaust port, An annular opening that is mixed with the base gas stream that is ejected from the annular vent.
  • the structure nozzle has the following disadvantages when used by a user:
  • the basic airflow ejected from the annular exhaust port is relatively dispersed and not concentrated, so that when used at a relatively long distance (for example, 3 meters), the flow velocity generated from the nozzle is low, the air supply effect is not ideal, and the rapid cooling is not achieved.
  • a relatively long distance for example, 3 meters
  • the front and rear openings of the annular opening are substantially equal in size, and the flow velocity of the external air passing through the annular opening completely depends on the suction force of the basic airflow injected by the annular exhaust port, so it is difficult to generate a high-speed airflow and the basis of the injection.
  • the airflow is mixed to affect the air volume.
  • the design of the annular passage makes the basic airflow in the shape of a ring inside the nozzle, which easily causes the airflow to be unevenly distributed in the passage, thereby affecting the uniformity of the airflow injection.
  • the occupied area is large, which is not conducive to placement and storage.
  • the object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a nozzle without a leaf fan which has a small occupied area, can accelerate an air jetting speed, increases an air volume and a blowing distance, and reduces noise, and optimizes the use environment.
  • a nozzle of a bladeless fan comprising a nozzle body, the nozzle body being provided with a receiving port and an internal passage for receiving a basic airflow, the nozzle body further provided with an air guiding port for guiding external air to pass, the air guiding
  • the front end of the mouth is provided with a long narrow opening
  • the rear end of the air guiding opening is provided with a wide opening having a width larger than the elongated narrow opening
  • the surface of the nozzle body is provided along the periphery of the elongated narrow opening
  • the exhaust port, the base airflow received by the internal passage is injected outward from the exhaust port.
  • the surface of the nozzle body may be provided with two rows of exhaust ports disposed along both sides of the long side of the elongated narrow opening, and the two rows of exhaust ports are arranged side by side and adjacent to each other.
  • the distance between the two rows of exhaust ports is 2 to 150 mm, and the distance between the two rows of exhaust ports and the elongated narrow opening is 1 to 20 dishes.
  • the inner passage of the nozzle body is partitioned by the air guiding port into a first passage and a second passage that are not in communication with each other, and the two rows of exhaust ports are respectively in communication with the first passage and the second passage.
  • the surface of the nozzle body may also be provided with an exhaust port arranged in an inverted U shape along both sides of the long side of the elongated narrow mouth and the short side.
  • the inner passage of the nozzle body is divided by the air guiding port into a first passage and a second passage communicating at the top, and the exhaust ports on the two sides of the exhaust port having an inverted U shape are respectively associated with the first passage and the first passage
  • the two passages communicate, and the upper exhaust port of the exhaust port having an inverted U shape is in communication with the top communication portion of the first and second passages.
  • the air guiding port has a substantially trumpet-shaped cross section, and the two opposite side surfaces form two air flow guiding surfaces for guiding the outside air.
  • the width of the rear end of the air guiding opening is 1 to 16 times the width of the narrow strip opening of the front end.
  • the receiving port is disposed at the bottom of the nozzle body, and the first channel and the second channel are disposed as two vertical channels connected to the upper end of the receiving port.
  • the nozzle body is configured as a cylindrical cavity.
  • the two air flows ejected through the exhaust ports combine to form a flow of air in front of the nozzles, which accelerates the jetting speed of the airflow and improves the effective air supply distance. , for the purpose of fast and cool users.
  • the air volume can be increased when the motor speed is equal, and the equal air output can reduce the number of motor revolutions and reduce the noise generated by cutting air when the impeller rotates at high speed.
  • the narrow front end and the wide rear end of the air guiding port can play the role of multiplying the air flow rate when guiding the outside air, that is, the air around the nozzle can be effectively generated to generate high-speed airflow, and guided and concentrated.
  • the two rows of exhaust ports are quickly transported forward together with the mixed airflow jetted from the exhaust port, which not only speeds up the jetting speed of the airflow, but also improves the airflow, and maintains the balance of the airflow output.
  • the air flow passage of the nozzle is arranged as two vertical passages, so that the flow direction of the air flow in the passage is a single vertical direction, thereby promoting the uniform distribution of the air flow in the two passages, thereby ensuring uniformity in air jet injection. .
  • the bladeless fan nozzle is designed to be generally cylindrical, which occupies a small area for use, saves space, and is easy to store, saving storage space.
  • Figure 1 is a front elevational view of a preferred embodiment of a bladeless fan nozzle of the present invention.
  • FIG. 2 is a rear elevational view of a preferred embodiment of a bladeless fan nozzle of the present invention.
  • 3 is a bottom plan view of a preferred embodiment of a bladeless fan nozzle of the present invention.
  • Figure 4 is a cross-sectional view of the A-A of Figure 1.
  • Figure 5 is a cross-sectional view of B-B of Figure 3.
  • Figure 6 is a front perspective view of a preferred embodiment of the bladeless fan nozzle of the present invention.
  • Figure 7 is a rear perspective view of a preferred embodiment of the bladeless fan nozzle of the present invention.
  • Figure 8 is a front elevational view of another embodiment of the bladeless fan nozzle of the present invention.
  • Fig. 9 is a rear perspective view of Fig. 8, showing a longitudinal section.
  • the vaneless fan nozzle is used in conjunction with a fan assembly that produces a base airflow, and includes a nozzle body 1 that is configured to receive a base airflow.
  • the receiving port 2 and the internal passage 3, the nozzle body 1 is further provided with an air guiding port 4 through which the outside air passes.
  • the front end of the air guiding port 4 is provided with an elongated narrow opening 41, and the rear end of the air guiding opening 4 is provided with a wide opening 42 having a width larger than the elongated narrow opening 41.
  • the wide opening 42 may be a waist opening or a rectangular opening.
  • the definition of the elongated narrow opening 41 means that the opening is composed of two opposite long sides and two opposite short sides, the length of the two long sides is much larger than the width of the two short sides, and two long
  • the edges are straight edges, and the two short sides can be straight edges, arc edges, or other shaped edges.
  • the surface of the nozzle body 1 is provided with two rows of exhaust ports 5 and 6 disposed along both sides of the long side of the elongated narrow opening 41.
  • the two rows of exhaust ports 5 and 6 are arranged side by side and adjacent to each other.
  • the two air streams ejected from the ports 5 and 6 combine to form a stream of air in front of the nozzle, thereby accelerating the jet velocity of the airflow and increasing the effective air supply distance.
  • the distance between the two rows of exhaust ports 5, 6 is 2 to 150 mm, preferably 10 to 50 mm, and the distance between each of the two rows of exhaust ports 5, 6 and the elongated narrow opening 41 is 1 to 20 inches.
  • the two rows of exhaust ports 5, 6 may be passed through a plurality of partitions, such as elongated rectangular openings disposed along the height direction of the nozzle body 1. The split is formed in such a way that the airflow is evenly jetted, making the blower feel more comfortable.
  • the inner passage 3 of the nozzle body 1 is partitioned by the air guiding port 4 into a first passage 31 and a second passage 32 which are not connected to each other, and the two rows of exhaust ports 5, 6 are respectively communicated with the first passage 31 and the second passage 32, Thereby, the basic airflow received in the two channels is separately sprayed outward during operation.
  • the air guiding port 4 has a substantially trumpet-shaped cross section, and the two opposite side surfaces form two air guiding surfaces 43 and 44 for guiding the outside air.
  • the base airflow jetted at the exhaust ports 5, 6 The external air is introduced from the rear end wide opening 42 of the air guiding port 4, and the air flow velocity is multiplied by the two air guiding surfaces 43 and 44 to generate a high-speed airflow, and the high-speed airflow is concentrated in the two rows of exhaust ports 5 6, the 6th, and the basic airflow jetted from the exhaust ports 5, 6 are quickly transported forward together.
  • the rear end of the air guiding opening 4 has a wide opening 42 width of the front end elongated narrow opening width 41
  • the receiving port 2 is disposed at the bottom of the nozzle body 1, and the first channel 31 and the second channel 32 are disposed as two vertical channels connected to the upper end of the receiving port 2.
  • the airflow direction in the two passages 31, 32 is consistent with the intake direction of the receiving port 2, and is transmitted vertically upwards, so that the airflow can be evenly distributed in the two channels, thereby ensuring uniformity in airflow injection. .
  • the difference from the foregoing embodiment is that the surface of the nozzle body 1 is provided on both sides of the long side and the short side along the elongated narrow opening 2.
  • the exhaust port 3 is arranged in an inverted U shape. During operation, the two air streams ejected by the exhaust port 3 having an inverted U-shaped shape merge into a stream in front of the nozzle, thereby accelerating the jet velocity of the airflow and increasing the effective air supply distance.
  • the inner passage 4 of the nozzle body 1 is partitioned by the air guiding port 5 into a first passage 41 and a second passage 42 which are communicated at the top, and the exhaust ports 31, 32 of the exhaust ports 3 which are distributed in an inverted U shape are respectively Communicating with the first passage 41 and the second passage 42 which are distributed in an inverted U shape
  • the upper exhaust port 33 of the exhaust port 3 communicates with the top communication portion 43 of the first and second passages 41, 42.
  • the distance between the two side exhaust ports 31 and 32 in the exhaust port 3 having an inverted U-shaped distribution is 2 to 150 mm, preferably 10 to 50, and the exhaust ports 31 and 32 on both sides are narrow and long.
  • the spacing between the openings 2 is 1 to 20 legs.
  • the nozzle body 1 is designed as a cylindrical cavity, and may also be a cylindrical cavity, an elliptical cavity or the like, and various other cavity shapes satisfying the structural design.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Nozzles (AREA)

Abstract

一种无叶风扇的喷嘴，包括喷嘴本体（1），喷嘴本体（1）设有用于接收基础气流的接收口（2）和内部通道（3），还有用于引导外部空气通过的空气引导口（4），空气引导口（4）的前端设有一长条形窄开口（41），后端设有一宽开口（42），喷嘴本体（1）表面设有沿长条形窄开口（41）周边设置的排气口（5，6），内部通道（3）接收的基础气流自排气口（5，6）向外喷射。无叶风扇喷嘴设计成大致圆柱形，使用时占用面积小，空气引导口（4）前端窄、后端宽的喇叭状结构，能够提高风量。

Description

一种无叶风扇的喷嘴 技术领域：
本发明涉及风扇领域， 特别是一种无叶风扇的喷嘴。
背景技术：
目前， 无叶风扇喷嘴的设计大多是环形喷嘴， 其设有用于接收基础 气流的环形通道和用于喷射基础气流的环形排气口， 还设有用于将外部 空气引导至环形排气口附近、 与从环形排气口喷射的基础气流混合的环 形开口。 该结构喷嘴在用户使用时存在如下缺点：
1、 从环形排气口喷射的基础气流相对分散、 不集中， 使得在相对远 距离使用时 （例如 3米）， 从喷嘴产生的气流流速低， 送风效果不理想， 达不到快速凉爽使用者的目的。
2、 环形开口的前、 后开口大小基本等大， 导致外部空气在通过该环 形开口时的气流流速完全取决于环形排气口喷射的基础气流的拽吸力， 因此难以生成高速气流与喷射的基础气流进行混合， 从而影响风量。
3、 环形通道的设计使得基础气流在喷嘴内部的走向呈环形， 这样容 易造成气流在通道中分布不均， 进而影响气流喷射的均匀性。
4、 现有无叶风扇使用时普遍存在噪音大的问题， 特别是当需要风扇 提供高速气流时， 风扇组件的叶轮高速旋转切割空气产生的噪音尤为突 出， 大大影响使用环境。
5、 占用的使用面积大， 不利于摆放和存放等。
发明内容： 本发明的目的在于克服上述现有技术之不足， 提供一种占用的使用 面积小， 可加快气流喷射速度、 提高风量及送风距离， 并降低噪音， 优 化使用环境的无叶风扇的喷嘴。
为达到以上目的， 本发明通过下技术方案来实现：
一种无叶风扇的喷嘴， 包括喷嘴本体， 所述喷嘴本体设有用于接收 基础气流的接收口和内部通道， 所述喷嘴本体还设有用于引导外部空气 通过的空气引导口， 所述空气引导口的前端设有一长条形窄开口， 所述 空气引导口的后端设有一宽度大于长条形窄开口的宽开口， 所述喷嘴本 体表面设有沿所述长条形窄开口周边设置的排气口， 所述内部通道接收 的基础气流自所述排气口向外喷射。
优选的， 所述喷嘴本体表面可设有沿所述长条形窄开口长边两侧设 置的两列排气口， 所述两列排气口并排且临近设置。 所述两列排气口之 间的间距为 2〜150mm， 所述两列排气口各自与所述长条形窄开口之间的 间距为 1〜20皿。 所述喷嘴本体的内部通道由所述空气引导口分隔成互 不连通的第一通道和第二通道， 所述两列排气口分别与第一通道和第二 通道相连通。
再选的， 所述喷嘴本体表面也可设有沿所述长条形窄幵口长边两侧 及短边一侧设置的呈倒 U形状分布的排气口。 所述喷嘴本体的内部通道 由所述空气引导口分隔成顶部连通的第一通道和第二通道， 所述呈倒 U 形状分布的排气口中的两侧排气口分别与第一通道和第二通道连通， 所 述呈倒 U形状分布的排气口中的上侧排气口与第一、 第二通道的顶部连 通部位连通。 - 进一步的， 所述空气引导口的截面大致呈喇叭状， 其二个相对的侧 表面形成两个对外部空气进行引导的气流弓 I导面。 进一步的， 所述空气引导口的后端宽开口宽度为前端长条形窄开口 宽度的 1〜16倍。
进一步的， 所述接收口设于喷嘴本体底部， 所述第一通道和第二通 道设置为与接收口上端相连的两个竖向通道。
进一步的， 所述喷嘴本体设置为圆柱形腔体。
本发明的有益效果为：
首先， 具有并排且临近设置的排气口， 工作时， 通过排气口喷射出 的两股气流， 在喷嘴的前方汇合成一股气流， 加快了气流的喷射速度， 提高了有效的送风距离， 可实现快速凉爽使用者的目的。 同时， 与现有 环形喷嘴相比， 在电机转速相等时可增加出风量， 相等的出风量可以减 少电机转数， 降低叶轮高速旋转时切割空气而产生的噪音。
其次， 空气引导口前端窄、 后端宽的喇叭状结构， 能够在引导外部 空气通过的时候起到倍增气流流速的作用， 即能够有效的附带喷嘴周边 的空气生成高速气流， 并引导和集中于两列排气口间， 与从排气口喷射 出的基础气流混合一同向前快速输送， 不仅加快了气流的喷射速度， 提 高了风量， 而且还能保持气流输出的均衡稳定。
再者， 喷嘴的气流通道设置为两个竖向通道， 使得气流在通道中的 走向为单一的竖直方向， 因此可促进气流在两个通道内的均匀分布， 进 而确保气流喷射时的均匀性。
最后， 无叶风扇喷嘴设计大致呈圆柱型， 在使用时占用的使用面积 小， 节省使用空间， 并方便收纳， 节省存放空间。
附图说明：
图 1为本发明无叶风扇喷嘴一种优选实施例的前视示意图。
图 2为本发明无叶风扇喷嘴一种优选实施例的后视示意图。 图 3为本发明无叶风扇喷嘴一种优选实施例的仰视示意图。
图 4为图 1中 A-A的剖视示意图。
图 5为图 3中 B-B的剖视示意图。
图 6为本发明无叶风扇喷嘴一种优选实施例的前视立体示意图。 图 7为本发明无叶风扇喷嘴一种优选实施例的后视立体示意图。 图 8为本发明无叶风扇喷嘴另一种实施例的前视示意图。
图 9为图 8的后视示意图， 图中作了纵向剖。
具体实施方式：
如图 1至图 7所示， 作为本发明的一种优选实施例， 该无叶风扇喷嘴 与产生基础气流的风扇组件配合使用， 其包括喷嘴本体 1， 喷嘴本体 1设 有用于接收基础气流的接收口 2和内部通道 3， 喷嘴本体 1还设有一弓 I导 外部空气通过的空气引导口 4。 空气引导口 4的前端设有一长条形窄开口 41 , 空气引导口 4的后端设有一宽度大于长条形窄开口 41的宽开口 42， 宽开口 42可以是腰形开口或矩形开口。 所述长条形窄开口 41的定义是指 该开口由相对的二个长边和相对的二个短边组成， 二个长边的长度远远 大于二个短边的宽度， 且二个长边为直边， 二个短边可以是直边、 圆弧 边或其它形状的边。
喷嘴本体 1表面设有沿长条形窄开口 41长边两侧设置的两列排气口 5、 6， 两列排气口 5、 6并排且临近设置， 工作时， 通过该两列排气口 5、 6喷射出的两股气流， 在喷嘴的前方汇合成一股气流， 从而加快了气流 的喷射速度， 提高了有效的送风距离。
两列排气口 5、 6之间的间距为 2〜 150mm， 优选为 10〜50mm， 两列排 气口 5、 6各自与长条形窄开口 41之间的间距为 1〜20匪。 两列排气口 5、 6可以由沿喷嘴本体 1高度方向设置的长条状矩形开口通过若干隔段等 分形成， 这样设计有助于气流均勾喷射， 使被吹者感觉更加舒适。
喷嘴本体 1的内部通道 3由空气引导口 4分隔成互不连通的第一通道 31和第二通道 32， 两列排气口 5、 6分别与第一通道 31和第二通道 32相连 通， 从而在工作时分别将两个通道中接受的基础气流向外喷射。
空气引导口 4的截面大致呈喇叭状， 其二个相对的侧表面形成两个 对外部空气进行引导的气流引导面 43、 44 , 工作时， 在排气口 5、 6喷射 的基础气流的拽吸下， 外部空气自空气引导口 4的后端宽开口 42引入， 经二个气流引导面 43、 44的引导使气流流速倍增生成高速气流， 并将该 高速气流集中于两列排气口 5、 6间， 与从排气口 5、 6喷射出的基础气流 混合一同向前快速输送。
空气引导口 4的后端宽开口 42宽度为前端长条形窄开口宽度 41的
1〜16倍， 优选为 6〜10倍。
接收口 2设于喷嘴本体 1底部， 第一通道 31和第二通道 32设置为与接 收口 2上端相连的两个竖向通道。 工作时， 两个通道 31、 32内的气流走 向与接收口 2的进气方向一致， 均为竖直向上传输， 从而可使气流在两 个通道内均匀分布， 进而确保气流喷射时的均匀性。
如图 8和图 9所示， 作为本发明的另一种实施例， 与前述实施例所不 同的是， 喷嘴本体 1表面设有沿长条形窄开口 2长边两侧及短边一侧设置 的呈倒 U形状分布的排气口 3。 工作时， 通过该呈倒 U形状分布的排气口 3 喷射出的两股气流， 在喷嘴的前方汇合成一股气流， 从而加快了气流的 喷射速度， 提高了有效的送风距离。
喷嘴本体 1的内部通道 4由空气引导口 5分隔成顶部连通的第一通 道 41和第二通道 42， 所述呈倒 U形状分布的排气口 3中的两侧排气口 31、 32分别与第一通道 41和第二通道 42连通， 所述呈倒 U形状分布的 排气口 3中的上侧排气口 33与第一、 第二通道 41、 42的顶部连通部位 43连通。
所述呈倒 U形状分布的排气口 3中的两侧排气口 31、32的间距为 2〜 150mm, 优选为 10〜50醒， 两侧排气口 31、 32各自与长条形窄开口 2之 间的间距为 1〜20腿。
喷嘴本体 1为圆柱形腔体设计， 也可以是类圆柱形腔体、 椭圆形腔 体等其它各种能满足结构设计的腔体形状。
上述实施例仅供说明本发明之用， 而并非对本发明的限制， 有关技 术领域的普通技术人员， 在不脱离本发明的精神和范围的情况下， 还可 以做出各种变化和变型， 因此所有等同的技术方案也属于本发明的范畴， 本发明的专利保护范围应由各权利要求限定。

Claims

权 利 要 求 书
1、 一种无叶风扇的喷嘴， 包括喷嘴本体， 所述喷嘴本体设有用 于接收基础气流的接收口和内部通道， 所述喷嘴本体还设有用于引 导外部空气通过的空气引导口， 其特征在于： 所述空气引导口的前 端设有一长条形窄开口， 所述空气引导口的后端设有一宽度大于长 条形窄开口的宽开口， 所述喷嘴本体表面设有沿所述长条形窄开口 周边设置的排气口， 所述内部通道接收的基础气流自所述排气口向 外喷射。
2、 根据权利要求 1所述一种无叶风扇的喷嘴， 其特征在于： 所 述喷嘴本体表面设有沿所述长条形窄开口长边两侧设置的两列排气 口， 所述两列排气口并排且临近设置。
3、 根据权利要求 2所述一种无叶风扇的喷嘴， 其特征在于： 所 述两列排气口之间的间距为 2〜150mm， 所述两列排气口各自与所述 长条形窄开口之间的间距为 1〜20mm。
4、 根据权利要求 2所述一种无叶风扇的喷嘴， 其特征在于： 所 述喷嘴本体的内部通道由所述空气引导口分隔成互不连通的第一通 道和第二通道，所述两列排气口分别与第一通道和第二通道相连通。
5、 根据权利要求 1所述一种无叶风扇的喷嘴， 其特征在于： 所 述喷嘴本体表面设有沿所述长条形窄开口长边两侧及短边一侧设置 的呈倒 U形状分布的排气口。
6、 根据权利要求 5所述一种无叶风扇的喷嘴， 其特征在于： 所 述喷嘴本体的内部通道由所述空气引导口分隔成顶部连通的第一通 道和第二通道，所述呈倒 U形状分布的排气口中的两侧排气口分别与 第一通道和第二通道连通，所述呈倒 U形状分布的排气口中的上侧排 气口与第一、 第二通道的顶部连通部位连通。
7、 根据权利要求 1或 2或 3或 4或 5或 6所述一种无叶风扇的喷嘴， 其特征在于： 所述空气引导口的截面大致呈喇叭状， 其二个相对的 侧表面形成两个对外部空气进行引导的气流引导面。
8、 根据权利要求 1或 2或 3或 4或 5或 6所述一种无叶风扇的喷嘴， 其特征在于： 所述空气引导口的后端宽开口宽度为前端长条形窄开 口宽度的 1〜16倍。
9、 根据权利要求 4或 6所述一种无叶风扇的喷嘴， 其特征在于： 所述接收口设于喷嘴本体底部， 所述第一通道和第二通道设置为与 接收口上端相连的两个竖向通道。
10、根据权利要求 1或 2或 3或 4或 5或 6所述一种无叶风扇的 喷嘴， 其特征在于： 所述喷嘴本体设置为圆柱形腔体。
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