CN201588818U - Air guide cover body structure for fan - Google Patents

Abstract

An air guide cover body structure for a fan, comprising: the front air guiding shell is provided with an air outlet at the front end; a plurality of front net brackets provided at an air outlet of the front wind guide housing, wherein the front net brackets include: a plurality of support brackets having a small width; and a plurality of wind guide brackets which are arranged between the supporting brackets at equal intervals and have a width larger than that of the supporting brackets. The utility model discloses a wind-guiding cover body structure for fan has the advantage that the preparation is simple and convenient and low-cost, just the air current can be assembled and guided with the water conservancy diversion structure of support and support for the wind-guiding to the support, makes the air current blow off roughly parallelly along water conservancy diversion structure direction to the air-out distance of extension air current, and reduce the air current noise.

Description

Translated fromChinese

用于风扇的导风罩体结构Windshield structure for fans

技术领域technical field

本实用新型涉及一种导风罩体结构，特别是涉及一种用于风扇中的能够增进出风效果的导风罩体结构。The utility model relates to an air guide cover structure, in particular to an air guide cover structure used in a fan and capable of improving the wind outlet effect.

背景技术Background technique

图1表示一般市面上的电风扇，所述电风扇10至少包括：前风扇护网101、后风扇护网102、具有扇叶1031及转轴1032的叶轮103以及用于驱动叶轮的马达104，且所述前风扇护网101与后风扇护网102的主架构仅由多个细金属线组成。传统电风扇10利用马达104驱动叶轮103，而设置前后风扇护网101、102的目的在于避免因触碰转动中的扇叶1031而造成危险，而气流的形成是通过扇叶1031的转动，从后风扇护网102外侧抽取气流并往前风扇护网101推送而产生，所述气流虽然大致朝电风扇10的前方平行地吹出，且前风扇护网101、后风扇护网102的外观构造有多处空隙用于气流通过，但仍易受周围空气的干扰，因此，造成气流往四周流散而使风力呈现散开状，从而必须靠近电风扇10一定距离内才能够感受到其风力。1 shows an electric fan on the general market. Theelectric fan 10 at least includes: afront fan guard 101, arear fan guard 102, animpeller 103 withblades 1031 and a rotatingshaft 1032, and amotor 104 for driving the impeller, and The main structure of thefront fan guard 101 and therear fan guard 102 is only composed of a plurality of thin metal wires. The traditionalelectric fan 10 uses themotor 104 to drive theimpeller 103, and the purpose of setting the front andrear fan guards 101, 102 is to avoid the danger caused by touching the rotatingfan blade 1031, and the airflow is formed by the rotation of thefan blade 1031, from The outside of therear fan guard 102 draws the airflow and pushes it toward thefront fan guard 101 to produce it. Although the airflow is blown out parallel to the front of theelectric fan 10, thefront fan guard 101 and therear fan guard 102 have the following appearance structures. Many gaps are used for airflow to pass through, but they are still easily disturbed by the surrounding air. Therefore, the airflow is caused to spread around and the wind force is scattered, so that the wind force must be felt within a certain distance from theelectric fan 10 .

此外，为了提高电风扇的风力，传统做法是增加电风扇扇叶的转速，但是，增加扇叶的转速将使得电风扇产生高噪音以及造成高耗电的副作用，与现今倡导环保与节能的趋势背道而驰。In addition, in order to increase the wind power of the electric fan, the traditional method is to increase the speed of the fan blades. However, increasing the speed of the fan blades will cause the electric fan to generate high noise and cause high power consumption. It is in line with the current trend of advocating environmental protection and energy saving. Run in the opposite direction.

为了解决传统电风扇风力不足的问题，也有尝试改良一般电风扇的构想，如图2所示，电风扇20至少包括：前风扇护网201，其具有多个第一螺旋片2012、多个第二螺旋片2013及两个圆框架2011；后风扇护网(图中未表示)；叶轮(图式中未表示)，其具有扇叶(图中未表示)及转轴(图中未表示)；马达(图中未表示)，其用于驱动所述叶轮，其中，所述第一螺旋片2012平均地分布于所述前风扇护网201中，且各所述第二螺旋片2013等间距地设于各所述第一螺旋片2012之间，但是所述第二螺旋片2013未分布于所述前风扇护网201的内圈。所述风扇20利用马达带动叶轮上的转轴来转动扇叶，从而产生气流，并通过前风扇护网201的多个第一螺旋片2012、多个第二螺旋片2013及两个圆框架2011的设计，比一般传统电风扇更能将气流推送成在与风扇转轴更为平行的方向上前进。然而，所述风扇20所产生的气流虽然比一般电风扇更能平行地推送气流，但其所推送的气流风力及空气导流效率却有所不足，此外，所产生的噪音也比一般的传统电风扇大，从而较不适合用在对噪音敏感的场所(例如：使用音响设备的空间等)，因此，消费者对于具有低噪音、低耗电、高气流出风距离与高风力并且可增加空气对流的用于风扇的导流结构有很高的期盼。In order to solve the problem of insufficient wind power of traditional electric fans, there are attempts to improve general electric fans. As shown in FIG. Twohelical pieces 2013 and tworound frames 2011; rear fan guard (not shown in the figure); impeller (not shown in the figure), which has a fan blade (not shown in the figure) and a rotating shaft (not shown in the figure); A motor (not shown in the figure), which is used to drive the impeller, wherein the firsthelical blades 2012 are evenly distributed in thefront fan guard 201, and each of the secondhelical blades 2013 is equally spaced It is arranged between each of the firsthelical pieces 2012 , but the secondhelical pieces 2013 are not distributed on the inner circle of thefront fan guard 201 . Thefan 20 uses the motor to drive the rotating shaft on the impeller to rotate the blades, thereby generating airflow, which passes through the multiple firsthelical pieces 2012, multiple secondhelical pieces 2013 and tworound frames 2011 of thefront fan guard 201. Designed to push the airflow in a direction more parallel to the fan shaft than conventional electric fans. However, although the airflow produced by thefan 20 can push the airflow more parallelly than the general electric fan, the airflow force and air guide efficiency of the airflow it pushes are not enough, in addition, the noise produced is also higher than the general traditional The electric fan is large, so it is not suitable for use in noise-sensitive places (for example: the space where audio equipment is used, etc.). There are high expectations for air-convective air guide structures for fans.

实用新型内容Utility model content

鉴于以上所述现有技术的缺点，本新型的目的在于提供一种用于风扇的导风罩体结构，能够延长气流的出风距离，且减低气流噪音。In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an air guide cover structure for a fan, which can prolong the air outlet distance of the air flow and reduce the air flow noise.

为达上述及其他目的，本实用新型提供一种用于风扇的导风罩体结构，包括：前导风壳，其前端具有出风口；多个前网支架，它们设于所述前导风壳的出风口，其中，所述前网支架包括：多个支撑用支架，它们的宽度较小；多个导风用支架，它们等间距地设置在所述支撑用支架之间且其宽度大于所述支撑用支架。In order to achieve the above and other purposes, the utility model provides an air guide cover structure for a fan, comprising: a front air guide shell with an air outlet at its front end; The air outlet, wherein, the front net support includes: a plurality of supports for support, their widths are smaller; Bracket for support.

在所述的用于风扇的导风罩体结构中，所述前导风壳可以为环筒状，并且所述导风用支架的数量可以为3支。In the air guiding cover structure for a fan, the front air guiding shell may be in the shape of an annular cylinder, and the number of the air guiding brackets may be three.

在所述的用于风扇的导风罩体结构中，所述前网支架可以为从中间向外延伸至出风口壁的螺旋状构造或直线状构造，且所述螺旋状的前网支架的螺旋延伸方向可以与扇叶的旋转方向相反。In the wind guide cover structure for the fan, the front net support can be a spiral structure or a straight line structure extending outward from the middle to the wall of the air outlet, and the spiral front net support The helical extension direction may be opposite to the rotation direction of the fan blade.

根据上文所述的结构，所述支撑用支架与导风用支架的宽度比例可以为1∶2至1∶6，所述前网支架的导风用支架与支撑用支架的前侧缘可以在同一平面上，且所述前网支架的宽度方向可以与前导风壳的轴心方向平行。According to the structure described above, the width ratio of the support bracket and the wind guide bracket can be 1:2 to 1:6, and the front side edge of the wind guide bracket and the support bracket of the front net bracket can be on the same plane, and the width direction of the front grid support may be parallel to the axis direction of the front wind guide shell.

仍在所述的用于风扇的导风罩体结构中，所述前网支架可以具有至少一个以前网支架的中心为圆心的圆环架，且所述圆环架可以连接于前网支架，且圆环架的前侧缘与前网支架的前侧缘可以在同一平面上。Still in the wind guide cover structure for fans, the front net support may have at least one ring frame with the center of the front net support as the center, and the ring frame may be connected to the front net support, And the front side edge of the ring frame and the front side edge of the front net support can be on the same plane.

综上所述，本实用新型的用于风扇的导风罩体结构具有制作简便及低成本的优点，且可利用所述支撑用支架及导风用支架的导流设计集中扇叶附近的空气，并调整由扇叶所抽取的空气的进风方向，进而汇聚并导正气流出风的流动方向，使气流沿着导流结构方向大致平行地吹出，从而延长气流的出风距离，且减低气流噪音。In summary, the wind guide cover structure for fans of the present invention has the advantages of simple manufacture and low cost, and the air diversion design of the support bracket and the wind guide bracket can be used to concentrate the air near the fan blades. , and adjust the air intake direction of the air extracted by the fan blades, and then converge and guide the flow direction of the air flow out, so that the air flow is blown out roughly parallel to the direction of the air guide structure, thereby extending the air outlet distance of the air flow and reducing the air flow noise.

附图说明Description of drawings

图1表示已知的风扇结构。Figure 1 shows a known fan structure.

图2表示另一已知的风扇结构。Fig. 2 shows another known fan structure.

图3A至图3C为本实用新型的用于风扇的导风罩体结构的第一实施例的示意图，其中，图3A为应用于风扇上的实例，图3B为主视图，图3C为后视图的局部放大图。Fig. 3A to Fig. 3C are the schematic diagrams of the first embodiment of the wind guide cover structure for the fan of the present utility model, wherein Fig. 3A is an example applied to a fan, Fig. 3B is a front view, and Fig. 3C is a rear view A partial enlargement of the .

图4A至图4C表示本实用新型的用于风扇的导风罩体结构的第二实施例的示意图，其中，图4A为应用于风扇上的实例，图4B为主视图，图4C为后视图的局部放大图。Fig. 4A to Fig. 4C show the schematic view of the second embodiment of the wind guide cover structure for the fan of the present utility model, wherein, Fig. 4A is the example applied to the fan, Fig. 4B is the front view, and Fig. 4C is the rear view A partial enlargement of the .

【主要组件符号说明】[Description of main component symbols]

10、20电风扇10, 20 electric fan

101、201前风扇护网101, 201 front fan screen

102后风扇护网102 rear fan guard

103、403、503叶轮103, 403, 503 impellers

104马达104 motor

1031扇叶1031 fan blade

1032转轴1032 shaft

2011圆框架2011 round frame

2012第一螺旋片2012 First Spiral

2013第二螺旋片2013 Second Helix

402、502后罩体402, 502 rear cover body

40、50风扇40, 50 fans

401、501前罩体401, 501 front cover body

4012、5012前网支架4012, 5012 front net bracket

40121、50121支撑用支架40121, 50121 support bracket

40122、50122导风用支架40122, 50122 bracket for air guide

40123、50123圆环架40123, 50123 ring frame

4011、5011前导风壳4011, 5011 front air guide shell

40111、50111前段环筒状壳体40111, 50111 front ring cylindrical shell

40112、50112后段环筒状壳体40112, 50112 rear ring cylindrical shell

具体实施方式Detailed ways

以下通过特定的具体实例来说明本实用新型的实施方式，本领域的技术人员可由本说明书所揭示的内容轻易地了解本实用新型的优点及功效。本实用新型还可以其它不同的方式予以实施，即，在不背离本实用新型所揭示的技术思想的前提下，能够进行不同的修饰与改变。The implementation of the present utility model is described below through specific examples, and those skilled in the art can easily understand the advantages and effects of the present utility model from the content disclosed in this specification. The utility model can also be implemented in other different ways, that is, various modifications and changes can be made without departing from the technical idea disclosed in the utility model.

图3A至图3C为本实用新型的用于风扇的导风罩体结构的第一实施例的示意图，其中，图3A为应用于风扇上的实例，图3B为主视图，图3C为后视图的局部放大图。Fig. 3A to Fig. 3C are the schematic diagrams of the first embodiment of the wind guide cover structure for the fan of the present utility model, wherein Fig. 3A is an example applied to a fan, Fig. 3B is a front view, and Fig. 3C is a rear view A partial enlargement of the .

如图3A所示，应用本实用新型的用于风扇的导风罩体结构的风扇40包括：前罩体401、后罩体402以及具有多片扇叶的叶轮403，其中，所述叶轮403位于前罩体401与后罩体402之内。As shown in Fig. 3A, thefan 40 using the wind guide cover structure for the fan of the present utility model includes: afront cover 401, arear cover 402 and animpeller 403 with multiple fan blades, wherein theimpeller 403 Located inside thefront cover 401 and therear cover 402 .

图3B与图3C表示具有直线状前网支架4012的前罩体401，多个前网支架4012设置在所述前导风壳4011的出风口，所述前网支架4012至少包括：多个支撑用支架40121，它们的宽度较小；导风用支架40122，其等间距地设置在支撑用支架40121之间，且宽度大于支撑用支架40121。此外，为使前网支架4012的各组成支架能够保持稳固，以发挥其整流与导流的效用，前网支架4012具有至少一个大致以前网支架4012的中心为圆心的圆环架40123，并将所述圆环架40123连接于支撑用支架40121与导风用支架40122，且圆环架40123的前侧缘与支撑用支架40121及导风用支架40122的前侧缘在同一平面上，以固定导风用支架40122及支撑用支架40121。通过所述前网支架4012中宽度较小的支撑用支架40121及宽度较大的导风用支架40122的宽度差异，使转动叶轮403所形成的气流，得以因宽度较大的导风用支架40122加以导流与整流，而吹出沿着导风壳的轴心线方向大致平行流动的气流。此外，所述前网支架4012的宽度方向与前导风壳4011的轴心平行，且前网支架4012的导风用支架40122与支撑用支架40121的前侧缘在同一平面上，使得导风用支架40122的后侧缘相较于支撑用支架40121向后(即朝叶轮403方向)伸出，以产生导风效果。支撑用支架40121与导风用支架40122的宽度比例调整为1∶2至1∶6，其中，又以1∶3的比例为较佳，而就支撑用支架40121与导风用支架40122两者所使用的总数量而言，导风用支架40122最少不得少于2支，且以3支较佳，6支更佳，但上限不得超过16支；而支撑用支架40121并无特别限制数量，最少不得少于2支，且导风用支架40122等间距地设置在支撑用支架40121之间。前网支架4012的支撑用支架40121与导风用支架40122的组成及其数量会随着风扇的尺寸而有所调整，亦即风扇尺寸增加，支架40121与40122的组成及其数量也随之增加。也就是说，可通过调整导风用支架40122与支撑用支架40121的宽度比例与数量比例，以降低噪音的产生并加大气流的出风距离，而进一步提高空气循环的对流功效。Fig. 3 B and Fig. 3 C represent thefront cover body 401 that has linearfront mesh support 4012, and a plurality of front mesh supports 4012 are arranged on the air outlet of described frontwind guiding shell 4011, and describedfront mesh support 4012 comprises at least: a plurality of supporting Thebrackets 40121 are smaller in width; thebrackets 40122 for wind guiding are arranged at equal intervals between the supportingbrackets 40121 and wider than the supportingbrackets 40121 . In addition, in order to keep each component support of the frontnet support 4012 stable, so as to exert its rectification and diversion effect, the frontnet support 4012 has at least onering frame 40123 with the center of the frontnet support 4012 as the center of the circle. Thering frame 40123 is connected to thesupport bracket 40121 and thewind guide bracket 40122, and the front side edge of thering frame 40123 is on the same plane as the front side edge of thesupport bracket 40121 and thewind guide bracket 40122, so as to fixBracket 40122 for air guide andbracket 40121 for support. Through the width difference between thesmaller support bracket 40121 and the widerwind guide bracket 40122 in the frontnet bracket 4012, the airflow formed by the rotatingimpeller 403 can be controlled by the larger widthwind guide bracket 40122. The flow is diverted and rectified, and the air flow that flows roughly parallel to the axial direction of the air guiding shell is blown out. In addition, the width direction of the frontnet support 4012 is parallel to the axis of the frontwind guide shell 4011, and the front side edge of the frontnet support 4012 and the front side edge of thesupport bracket 40121 are on the same plane, so that the wind guide The rear side edge of thebracket 40122 protrudes backward (ie toward the direction of the impeller 403 ) compared with the supportingbracket 40121 to produce a wind guiding effect. The width ratio of thesupport bracket 40121 and thewind guide bracket 40122 is adjusted to 1:2 to 1:6, wherein the ratio of 1:3 is better, and thesupport bracket 40121 and thewind guide bracket 40122 are both In terms of the total quantity used, theair guide bracket 40122 should not be less than 2, and 3 is better, and 6 is more preferable, but the upper limit should not exceed 16; and the supportingbracket 40121 has no special limit on the number, At least not less than 2, and thebrackets 40122 for air guide are arranged at equal intervals between thebrackets 40121 for support. The composition and quantity of the supportingbracket 40121 and theair guide bracket 40122 of the frontnet bracket 4012 will be adjusted with the size of the fan, that is, the size of the fan increases, and the composition and quantity of thebrackets 40121 and 40122 also increase accordingly . That is to say, by adjusting the width ratio and quantity ratio of theair guiding bracket 40122 and the supportingbracket 40121 , the generation of noise can be reduced and the air outlet distance of the airflow can be increased to further improve the convective effect of the air circulation.

此外，前导风壳4011是由至少1个以上具有不同直径的中空圆筒体构成的多段环筒状壳体，其中，所述环筒状壳体两端开口的直径大小并不相同。具体言之，前导风壳4011可由直径较小的前段环筒状壳体40111与直径较大的后段环筒状壳体40112构成，其中，将所述前导风壳4011在直径较小的前段环筒状壳体40111的一端开口做为出风口，亦即，所述出风口直径与前段环筒状壳体40111的直径一致，且所述前段环筒状壳体40111与直径略大于前段环筒状壳体40111的后段环筒状壳体40112相接合。因此，利用前导风壳4011的中空圆筒体可进一步导引气流进行多重整流与导流，从而气流由前罩体401的出风口以平行于前导风壳4011的轴心线的方向流动，进而延长气流出风的距离。In addition, the frontwind guide shell 4011 is a multi-section annular cylindrical casing composed of at least one hollow cylinder with different diameters, wherein the openings at both ends of the annular cylindrical casing have different diameters. Specifically, the frontair guiding shell 4011 can be composed of a front ringcylindrical shell 40111 with a smaller diameter and a rear ringcylindrical shell 40112 with a larger diameter. One end of the annularcylindrical shell 40111 is opened as an air outlet, that is, the diameter of the air outlet is consistent with the diameter of the front ringcylindrical shell 40111, and the diameter of the front ringcylindrical shell 40111 is slightly larger than that of the front ring The rear stage of thecylindrical case 40111 is engaged with thecylindrical case 40112 . Therefore, the hollow cylinder of the frontair guide shell 4011 can further guide the airflow for multiple rectification and diversion, so that the airflow flows from the air outlet of thefront cover 401 in a direction parallel to the axis of the frontair guide shell 4011, and then Extend the distance the airflow leaves the wind.

图4A至图4C为本实用新型的用于风扇的导风罩体结构的第二实施例的示意图，其中，图4A为应用于风扇上的实例，图4B为主视图，图4C为后视图的局部放大图。Fig. 4A to Fig. 4C are the schematic diagrams of the second embodiment of the wind guide cover structure for the fan of the present invention, wherein, Fig. 4A is an example applied to a fan, Fig. 4B is a front view, and Fig. 4C is a rear view A partial enlargement of the .

如图4A所示，应用本实用新型的用于风扇的导风罩体结构的风扇50包括：前罩体501、后罩体502以及具有多片扇叶的叶轮503。其中，所述叶轮503位于前罩体501与后罩体502之内。As shown in FIG. 4A , thefan 50 using the air guide cover structure for fans of the present invention includes: afront cover 501 , arear cover 502 and animpeller 503 with multiple blades. Wherein, theimpeller 503 is located inside thefront cover 501 and therear cover 502 .

图4B至图4C表示具有螺旋状前网支架5012的前罩体501，多个前网支架5012设置在所述前导风壳5011的出风口，本实例中的所述前网支架5012至少包括：多个支撑用支架50121，它们的宽度较小；导风用支架50122，其等间距地设置在支撑用支架50121之间，且宽度大于支撑用支架50121。此外，为使本实用新型的前网支架5012的各组成支架能够保持稳固，以发挥其整流与导流的效用，前网支架5012具有至少一个大致以前网支架5012的中心为圆心的圆环架50123，并将所述圆环架50123连接于支撑用支架50121与导风用支架50122，且圆环架50123的前侧缘与支撑用支架50121及导风用支架50122的前侧缘在同一平面上，以固定导风用支架50122及支撑用支架50121。通过所述前网支架5012中宽度较小的支撑用支架50121及宽度较大的导风用支架50122的宽度差异，使转动叶轮503带动扇叶所形成的气流得以因宽度较大的导风用支架50122加以导流与整流而吹出沿着前导风壳5011的轴心线方向大致平行流动的气流。Figures 4B to 4C show afront cover 501 with a helical frontnet bracket 5012, a plurality of frontnet brackets 5012 are arranged at the air outlet of the frontwind guide shell 5011, and the frontnet bracket 5012 in this example at least includes: A plurality ofsupport brackets 50121 are smaller in width; wind guide brackets 50122 are arranged at equal intervals between thesupport brackets 50121 and wider than thesupport brackets 50121 . In addition, in order to keep each component support of the frontnet support 5012 of the present utility model stable, so as to bring into play its rectification and diversion effect, the frontnet support 5012 has at least one ring frame that is roughly the center of the frontnet support 5012 50123, and thering frame 50123 is connected to thesupport bracket 50121 and the wind guide bracket 50122, and the front side edge of thering frame 50123 is on the same plane as the front side edge of thesupport bracket 50121 and the wind guide bracket 50122 Above, to fix the bracket 50122 for the wind guide and thebracket 50121 for the support. Through the width difference between the smallerwidth support bracket 50121 and the larger width air guide bracket 50122 in the frontnet bracket 5012, the airflow formed by the rotatingimpeller 503 driving the fan blades can be driven by the larger width wind guide bracket. The bracket 50122 is guided and rectified to blow out an airflow that flows substantially parallel to the axial direction of the frontair guiding shell 5011 .

此外，前网支架5012的螺旋延伸方向与扇叶的旋转方向相反，并且前网支架5012的宽度方向与前导风壳5011的轴心平行，且前网支架5012的导风用支架50122与支撑用支架50121的前侧缘在同一平面上，使得导风用支架50122的后侧缘相较于支撑用支架50121向后(即朝叶轮503方向)伸出，以产生导风效果，且支撑用支架50121与导风用支架50122的宽度比例调整为1∶2至1∶6，其中，又以1∶3的比例为较佳，而就支撑用支架50121与导风用支架50122两者所使用的总数量而言，导风用支架50122最少不得少于2支，而以3支较佳，6支更佳，但上限不得超过16支；而支撑用支架50121并无特别限制数量，最少不得少于2支，须注意的是导风用支架50122须等间距地设置在支撑用支架50121之间。前网支架5012的组成及其数量会随着本风扇的尺寸而有所调整，亦即风扇尺寸增加，则前网支架5012的组成及其数量也随之增加。也就是说，可通过调整导风用支架50122与支撑用支架50121的宽度比例与数量比例，以降低噪音的产生与加大气流的出风距离，而进一步提高空气循环的对流功效。In addition, the helical extension direction of the frontnet support 5012 is opposite to the rotation direction of the fan blades, and the width direction of the frontnet support 5012 is parallel to the axis of the frontwind guide shell 5011, and the wind guide bracket 50122 of the frontnet support 5012 is aligned with the support. The front side edge of thebracket 50121 is on the same plane, so that the rear side edge of the wind guiding bracket 50122 protrudes backward (that is, toward the direction of the impeller 503) compared with the supportingbracket 50121 to produce a wind guiding effect, and the supporting bracket The width ratio of 50121 and the bracket 50122 for air guide is adjusted to 1:2 to 1:6, and the ratio of 1:3 is better, and thebracket 50121 for support and the bracket 50122 for air guide are used In terms of the total quantity, the number of brackets 50122 for air guidance shall not be less than 2 pieces, preferably 3 pieces, and 6 pieces are more preferable, but the upper limit shall not exceed 16 pieces; while the number ofsupport pieces 50121 is not particularly limited, at least no less As for the two pieces, it should be noted that the air guide brackets 50122 must be equidistantly arranged between the supportingbrackets 50121 . The composition and quantity of the frontnet support 5012 will be adjusted according to the size of the fan, that is, the size of the fan increases, and the composition and quantity of the frontnet support 5012 also increase accordingly. That is to say, by adjusting the width ratio and quantity ratio of the air guiding bracket 50122 and the supportingbracket 50121, the generation of noise can be reduced and the air outlet distance of the airflow can be increased to further improve the convective effect of the air circulation.

此外，前导风壳5011是由至少1个以上具有不同直径的中空圆筒体构成的环筒状壳体，其中，所述环筒状壳体两端开口的直径大小并不相同。具体言之，前导风壳5011可由直径较小的前段环筒状壳体50111与直径较大的后段环筒状壳体50112构成，其中，将所述前导风壳5011在直径较小的前段环筒状壳体50111的一端开口做为出风口，亦即，所述出风口直径与前段环筒状壳体50111的直径一致，且所述前段环筒状壳体50111与直径略大于前段环筒状壳体的后段环筒状壳体50112相接合。因此，利用前导风壳5011的中空圆筒体可进一步导引气流进行多重整流与导流，从而气流由前罩体501的出风口以平行于前导风壳5011的轴心线方向流动，进而延长气流出风的距离。In addition, the frontwind guide shell 5011 is an annular cylindrical casing composed of at least one hollow cylinder with different diameters, wherein the diameters of the openings at both ends of the annular cylindrical casing are different. Specifically, the frontair guiding shell 5011 can be composed of a front ringcylindrical shell 50111 with a smaller diameter and a rear ringcylindrical shell 50112 with a larger diameter. One end of the annularcylindrical shell 50111 is opened as an air outlet, that is, the diameter of the air outlet is consistent with the diameter of the front ringcylindrical shell 50111, and the diameter of the front ringcylindrical shell 50111 is slightly larger than that of the front ring. The rear section of the cylindrical housing is engaged with thecylindrical housing 50112 . Therefore, the hollow cylinder of the frontair guide shell 5011 can further guide the airflow for multiple rectification and diversion, so that the airflow flows from the air outlet of thefront cover 501 in a direction parallel to the axis of the frontair guide shell 5011, thereby extending The distance the airflow leaves the wind.

此外，为了提高运作的稳定性以及降低旋转动力装置运作时所产生的噪音，扇叶应与前罩体保持一定的距离，所述扇叶的设置不与前罩体完全重叠，亦即可具体地将靠近前罩体的所述扇叶前缘至前罩体的外缘的最短距离设置为5mm至50mm，但以8mm至25mm较佳，通过拉长扇叶至前网支架外缘的距离，也同样有助于减少运转时所产生的噪音。In addition, in order to improve the stability of operation and reduce the noise generated during the operation of the rotating power device, the fan blades should be kept at a certain distance from the front cover, and the setting of the fan blades should not completely overlap with the front cover, that is to say, Set the shortest distance from the front edge of the fan blade close to the front cover to the outer edge of the front cover to 5mm to 50mm, but preferably 8mm to 25mm, by lengthening the distance from the fan blade to the outer edge of the front net support , It also helps to reduce the noise generated during operation.

由上述实例可知，前导风壳的作用原理是将扇叶所产生的气流与周遭环境的空气隔离，而仅留下可让气流直行前进的出风口，并利用特定宽度与数量的导风用支架与支撑用支架，使得应用本实用新型的风扇结构能具有良好的气流整流与导流效果，进而提高气流出风距离且可增加空气对流，以避免气流过早受到周围空气干扰而散乱且降低风速。It can be known from the above examples that the function principle of the front air guide shell is to isolate the airflow generated by the fan blades from the air in the surrounding environment, leaving only the air outlet for the airflow to go straight forward, and using a specific width and number of air guide brackets With the supporting bracket, the fan structure of the utility model can have a good airflow rectification and flow diversion effect, thereby increasing the airflow distance and increasing air convection, so as to avoid the airflow being disturbed by the surrounding air prematurely and being scattered and reducing the wind speed .

实测例：Test case:

首先，在同一尺寸规格下，取2个10英寸的风扇分别加装直线型前网支架及螺旋型前网支架的本实用新型的用于风扇的导风罩体结构做为风扇待测物A及风扇待测物B，再取1个10英寸的已知电风扇作为风扇待测物C。转动上述3个风扇待测物A、B、C，针对待测物A、B、C附近的风量以及在不同距离处的噪音与风速进行测试，其测试结果如下表所示：First of all, under the same size and specification, take two 10-inch fans and install the linear front net support and the spiral front net support respectively. and fan DUT B, and take a 10-inch known electric fan as fan DUT C. Turn the above three fans to be tested A, B, and C, and test the air volume near the tested objects A, B, and C, as well as the noise and wind speed at different distances. The test results are shown in the following table:

由上表的量测结果可知，相较于一般电风扇，具有本实用新型的用于风扇的导风罩体结构的风扇确实达到降低气流噪音以及将气流推送至更远距离的功效，由此可知，加装本实用新型的用于风扇的导风罩体结构的风扇使得由扇叶所抽取的空气的进风方向通过前网支架的构成、宽度及其数量的设计而汇聚并导正气流的流动方向，从而所吹出的气流较一般电风扇更能降低气流噪音，并且能将气流推送至更远的距离。From the measurement results in the above table, it can be seen that compared with the general electric fan, the fan with the air guide cover structure for the fan of the present invention can indeed achieve the effect of reducing airflow noise and pushing the airflow to a longer distance, thus It can be seen that the installation of the fan with the wind guide cover structure for the fan of the utility model makes the air intake direction of the air extracted by the fan blade converge and guide the airflow through the design of the composition, width and quantity of the front net support The direction of flow, so that the airflow blown out can reduce the airflow noise better than ordinary electric fans, and can push the airflow to a longer distance.

上述实施例仅为了例示性地说明本实用新型的原理及其功效，而非用于限制本实用新型。本实用新型的保护范围，应依本实用新型的权利要求书的记载内容来确定。The above-mentioned embodiments are only used to illustrate the principle and effect of the present utility model, but not to limit the present utility model. The scope of protection of the utility model shall be determined according to the contents of the claims of the utility model.

Claims (10)

1. a wind scooper body structure that is used for fan is characterized in that, comprising:

Preceding ventilation case, its front end has exhaust outlet; Net support before a plurality of, they are arranged on the exhaust outlet of described preceding ventilation case, and wherein, described preceding net support comprises: a plurality of support supports, their width is less; A plurality of wind-guiding supports, they be arranged on equally spacedly described support with between the support and its width greater than described support support.

2. the wind scooper body structure that is used for fan as claimed in claim 1 is characterized in that, described preceding ventilation case is a cylinder shape.

3. the wind scooper body structure that is used for fan as claimed in claim 1 is characterized in that, described wind-guiding is 3 with the quantity of support.

4. the wind scooper body structure that is used for fan as claimed in claim 1 is characterized in that, helical structure or the straight line shape structure of described preceding net support for extend out to the exhaust outlet wall from the centre.

5. the wind scooper body structure that is used for fan as claimed in claim 1 is characterized in that, described support is 1: 2 to 1: 6 with support and described wind-guiding with the width ratio of support.

6. the wind scooper body structure that is used for fan as claimed in claim 1 is characterized in that, described before the net support wind-guiding with support with support at grade with the cephalolateral margin of support.

7. the wind scooper body structure that is used for fan as claimed in claim 2 is characterized in that, the width direction of described preceding net support is parallel with the axis direction of preceding ventilation case.

8. the wind scooper body structure that is used for fan as claimed in claim 1 is characterized in that, the center that described preceding net support has at least one former net support is the annulus frame in the center of circle.

9. the wind scooper body structure that is used for fan as claimed in claim 8 is characterized in that, described annulus frame is connected in described preceding net support, and the cephalolateral margin of the cephalolateral margin of described annulus frame and described preceding net support at grade.

10. the wind scooper body structure that is used for fan as claimed in claim 4 is characterized in that, the spiral extension direction of described spiral helicine preceding net support is opposite with the sense of rotation of flabellum.

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