WO2017084524A1 - 一种箱扇后网及箱扇 - Google Patents

一种箱扇后网及箱扇 Download PDF

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Publication number
WO2017084524A1
WO2017084524A1 PCT/CN2016/105190 CN2016105190W WO2017084524A1 WO 2017084524 A1 WO2017084524 A1 WO 2017084524A1 CN 2016105190 W CN2016105190 W CN 2016105190W WO 2017084524 A1 WO2017084524 A1 WO 2017084524A1
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WO
WIPO (PCT)
Prior art keywords
motor
box fan
box
switch
disposed
Prior art date
Application number
PCT/CN2016/105190
Other languages
English (en)
French (fr)
Inventor
郭润明
Original Assignee
广东美的环境电器制造有限公司
美的集团股份有限公司
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Application filed by 广东美的环境电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的环境电器制造有限公司
Publication of WO2017084524A1 publication Critical patent/WO2017084524A1/zh
Priority to US15/960,417 priority Critical patent/US11015617B2/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans

Definitions

  • the invention relates to the technical field of motor waterproofing, in particular to a box fan rear net and a box fan.
  • Fans can be divided into vertical fans, box fans, wall fans, table fans, etc. According to the structure, most of the box fans on the market are open-type, do not have anti-rain function; the rear net is open, water vapor Raindrops or dust will enter the motor housing directly through the rear net. On the one hand, it will affect the life of the motor. On the other hand, there will be safety hazards of electric leakage and motor ignition; the box fan will have bad weather in the rainy season or excessive humidity. The security risks of using it are increased.
  • the switch of the existing box fan has no protection device, and the rainwater splashed by the rainwater and the blade of the outside is easy to enter the switch, which may cause short circuit damage of the switch, burn other electrical components, and even cause fire.
  • the technical problem to be solved by the invention is that in order to solve the existing open pattern of the box fan, the water vapor, raindrops or dust will directly enter the motor housing through the back wall of the box fan, and there is a safety hazard of leakage and motor ignition. A problem that affects the life of the motor.
  • the present invention provides a box fan rear net, comprising: a vertically disposed body, the body is provided with a waterproof portion, and the waterproof portion is disposed at a position corresponding to a motor in the box fan,
  • the waterproof portion includes a recessed structure disposed on the body, and the recessed structure is provided with a vent hole for communicating between the inner and outer sides of the body.
  • vent hole is located at an upper portion of the recess structure.
  • the recessed structure comprises a bottom surface and a plurality of side walls connected thereto, and the vent hole is disposed at a junction of the bottom surface and the side wall.
  • vent hole is a "one" shaped long hole or an "L" shaped hole.
  • the number of the recessed structures is plural, and the plurality of the recessed structures integrally form a circular or annular waterproof portion.
  • a box fan includes: a casing, a fan blade, a motor, and a box fan rear net as described above, the vane is connected to the motor, and the vane and the motor are mounted in the casing, The box fan rear net is mounted on the housing, and the motor is opposite to the inner side of the box fan rear net.
  • a rain cover is disposed on the inner side of the box fan rear net and above the waterproof portion.
  • the rain cover is an arc-shaped plate with both ends facing downward.
  • a motor protection cover is disposed above the motor, and the motor protection cover is connected with a water guide cover, and the water guide cover is located between the motor and the rain cover.
  • the material of the motor protection cover is refractory material.
  • a switch for switching an operating state of the motor, the switch being provided with a protection unit for preventing external rainwater from entering the switch.
  • the switch is disposed on the rear of the box fan, the protection unit is a switch protection box, and the switch protection box is disposed outside the switch.
  • the switch is disposed on the rear of the box fan
  • the protection unit is a water retaining plate
  • the water blocking plate is disposed between the fan blade and the switch.
  • the rear wall of the box fan according to the present invention ensures ventilation of the box fan by providing a vent hole; the vent hole is disposed in the recessed structure, and the rainwater can flow downward along the recessed structure without Entering the vent hole, the waterproofing is realized under the premise of ensuring ventilation, and the external rainwater directly falls into the vent hole during the ventilation process; the vent hole is disposed above the recessed structure, further reducing the probability of rainwater splashing into the vent hole, further Improved waterproofing.
  • the rear end of the motor directly corresponds to the waterproof portion of the rear fan of the box fan
  • the rain cover and the water guide cover can be used to guide rainwater from other areas of the rear window to areas other than the motor and then flow down. It can completely avoid the occurrence of rainwater entering the motor phenomenon, which can effectively avoid the occurrence of leakage and motor ignition, and prolong the service life of the motor;
  • the material of the motor protection cover is refractory material, which can prevent the wind blade from igniting and meet the waterproof and fireproof requirements of the motor.
  • the switch is equipped with a protection unit, especially when the protection unit is a switch protection box, it can fully protect the switch, prevent rainwater from entering the switch, ensure the normal operation of the switch, and ensure safety.
  • Figure 1 is a schematic structural view of the box fan of the present invention
  • Figure 2 is a second schematic structural view of the box fan of the present invention.
  • Figure 3 is a partial enlarged view of a portion A in Figure 2;
  • FIG. 4 is a schematic structural view of a box fan rear net of the present invention.
  • Figure 5 is a half cross-sectional structural view of the box fan rear net of the present invention.
  • Figure 6 is a partial enlarged view of B in Figure 5;
  • Figure 7 is a partial enlarged view of a portion C in Figure 6;
  • Figure 8 is a schematic structural view of the motor protection cover of the present invention.
  • FIG. 9 is a schematic structural view of a box fan according to Embodiment 3 of the present invention.
  • connection is disassembled or connected in one piece; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium.
  • connection is disassembled or connected in one piece; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • this embodiment discloses a box fan rear net, comprising: a vertically disposed body, the body is provided with a waterproof portion 12, and the waterproof portion 12 is disposed in the box fan.
  • the waterproof portion 12 includes a recessed structure disposed on the body, and the recessed structure is provided with a vent hole 123 for communicating between the inner and outer sides of the body.
  • the vent hole 123 is disposed in the recessed structure instead of being directly exposed on the outside of the body, even if rain or dust falls from the oblique upper side, It will also be blocked, and can only flow down the outer surface of the body, and will not fall directly into the vent hole 123, and will not enter the inner side of the body from the vent hole 123 in the recessed structure, and realize the ventilation and heat dissipation. It has the function of rainproof and waterproof.
  • the recessed structure is disposed at an upper portion of the waterproof portion 12, and the vent hole 123 is located at an upper portion of the recessed structure.
  • the recessed structure includes a bottom surface 121 and a plurality of sidewalls 122 connected thereto, and the vent hole 123 is disposed at a junction of the bottom surface 121 and the sidewall 122.
  • the vent hole 123 is a "one" shaped long hole or an "L" shaped hole; that is, it is disposed at the junction of the bottom surface 121 and one of the side walls 122 to form a "one" word.
  • the elongated hole is disposed between the bottom surface 121 and the two adjacent side walls 122 to form an "L" shaped hole.
  • the number of the recessed structures is plural, and the plurality of recessed structures integrally form a circular or annular waterproof portion 12.
  • the waterproof portion 12 is generally arranged in a circular shape, and a plurality of recessed structures are evenly distributed in the circular area, but only the vent hole 123 is provided in the recessed structure of the upper half to prevent the upper rainwater from flowing down and entering.
  • the vent hole 123 is disposed at the junction of the upper edge of the bottom surface 121 and the side wall 122, as shown in FIGS. 6 and 7.
  • the rainwater will be directly blocked by the side wall 122 and will not fall into the vent hole 123 at the bottom of the side wall 122; even if some rainwater falls into the recessed structure, the vent hole 123 is at the upper edge of the bottom surface 121, so the rainwater It does not flow from the vent hole 123 to the inside of the body at all, and further realizes many functions of rainproof, waterproof, waterproof, etc. under the premise of achieving ventilation.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the present embodiment specifically discloses a box fan, including: a casing 5, a blade 3, a motor 4, and a box fan rear net 1 according to the first embodiment.
  • the fan blade 3 is connected to the motor 4, and the fan blade 3 and the motor 4 are both mounted in the casing 5, and the box fan rear net 1 is mounted on the casing 5, and the motor 4 is The inside of the box fan rear net 1 is opposite.
  • the ventilation and protection of the motor 4 is realized by using the box fan rear net 1 according to the first embodiment, so as to prevent rainwater from entering the motor 4 from the box fan rear net 1 during use, and ensuring normal ventilation of the motor 4 while achieving waterproofing.
  • the motor 4 is opposite to the waterproof portion 12.
  • the blade 3 is mounted on the main shaft of the front end of the motor 4.
  • the rear end of the motor 4 is opposite to the waterproof portion 12, and mainly protects the motor 4 from external rainwater and the like.
  • a rain cover 11 is disposed inside the box fan rear net 1 and above the waterproof portion 12.
  • the rain cover 11 is an arc-shaped plate with both ends facing downward. Due to the wind 3 When rotating, there will be a large amount of airflow passing through the rear window. Therefore, the area around the waterproof portion 12 still adopts a conventional grid structure, and the grid structure cannot realize the waterproof function, so as to prevent external rainwater and the like from entering the grid.
  • the motor 4 is provided with a rain cover 11 above the waterproof portion 12, and can block the rainwater coming in from above the motor 4 and guide it to flow out to other areas, thereby effectively preventing water from flowing to the motor 4.
  • a motor protection cover 2 is disposed above the motor 4, and the motor protection cover 2 is connected with a water guide cover 21, and the water guide cover 21 is located between the motor 4 and the rain cover 11. The water flowing down the rain cover 11 and the water can fall down from other areas along the motor cover 2 and the water guide cover 21 below, and do not fall into the motor 4.
  • the motor protection cover 2 is made of refractory material.
  • the wind blade 3 rotates at a high speed and is easy to heat up.
  • the motor protection cover 2 is made of refractory material, which can effectively prevent the wind blade 3 from burning and ensure safe use.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the box fan further includes a switch 6 for switching the operating state of the motor 3, and the switch 6 is provided for blocking external rainwater. Entering the guard unit 7 of the switch 6.
  • the setting of the protection unit 7 can effectively protect the switch 6 from rainwater, avoid leakage and short circuit due to rainwater entering, ensure the normal operation of the switch 6, and ensure safety.
  • the switch 6 is disposed on the rear fan 1 of the box fan, the protection unit 7 is a switch protection box, and the switch protection box is disposed outside the switch 6.
  • the switch protection box can provide multi-directional and comprehensive protection to the switch 6, avoiding rainwater entering the switch 6, and the protection effect is optimal.
  • the switch 6 is disposed on the rear fan 1 of the box fan, and the guard unit 7 is a water retaining plate disposed between the vane 4 and the switch 6.
  • the guard unit 7 is a water retaining plate disposed between the vane 4 and the switch 6.
  • the box fan rear net 1 ensures the ventilation of the box fan by providing the vent hole 123; the vent hole 123 is disposed in the recessed structure, and the rainwater can follow the recessed structure. It flows downwards without entering the vent hole 123, that is, waterproofing is achieved under the premise of ensuring ventilation, and the external rainwater directly falls into the vent hole 123 during the ventilation process; the vent hole 123 is disposed above the recessed structure to further reduce The probability of rainwater splashing into the vent hole 123 further improves the waterproof effect.
  • the rear end of the motor 4 is directly opposite to the waterproof portion 12 of the rear fan 1 of the box fan, and under the premise of achieving ventilation and heat dissipation, the rainwater does not directly flow to the motor 4 through the waterproof portion 12.
  • the cover of the rain cover 11 and the water guide cover 21 can guide the rainwater entering from other areas of the rear window to the area other than the motor 4 and then flow down, completely avoiding the occurrence of rainwater entering the motor 4, and effectively avoiding leakage and the motor.
  • the material of the motor protection cover 2 is refractory material, which can prevent the wind blade 3 from catching fire and meet the waterproof and fireproof requirements of the motor 4;
  • the switch 6 is provided with a protection unit 7, especially when When the protection unit 7 is a switch protection box, the switch 6 can be fully protected to prevent rainwater from entering the switch 6, ensuring normal operation of the switch 6, and ensuring safety.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种箱扇后网，包括：竖直设置的本体，本体上设有防水部（12），防水部（12）设置于与箱扇内的电机（4）对应的位置，防水部（12）包括若干设置在本体上的凹陷结构，凹陷结构内设有用于连通本体内外两侧的通气孔（123）。通过在凹陷结构内开设通气孔（123）的方式，在保证通风的前提下实现防水，可以有效避免漏电和电机着火等现象的发生，延长箱扇电机的使用寿命。

Description

一种箱扇后网及箱扇 技术领域
本发明涉及电机防水技术领域，特别涉及一种箱扇后网及箱扇。
背景技术
风扇按照结构可以分为立扇、箱扇、壁扇、桌扇等，目前市场上的大部分箱扇的后网都是敞开式的，不具有防淋雨功能；后网为敞开式，水汽、雨滴或灰尘会穿过后网直接进入到电机壳体内，一方面会会影响电机的寿命，另一方面会存在漏电和电机着火的安全隐患；使得箱扇在雨季或湿度过大的恶劣天气下使用的安全风险加大。现有箱扇的开关没有防护装置，外界雨水、风叶转动飞溅出的雨水很容易进入开关，可能导致开关短路损坏，烧毁其他电器元件，甚至引发火灾等。
发明内容
(一)要解决的技术问题
本发明要解决的技术问题是：为解决现有的箱扇后网为敞开式，水汽、雨滴或灰尘会穿过箱扇后网直接进入到电机壳体内，存在漏电和电机着火的安全隐患，影响电机的寿命的问题。
(二)技术方案
为了解决上述技术问题，本发明提供了一种箱扇后网，包括：竖直设置的本体，所述本体上设有防水部，所述防水部设置于与箱扇内的电机对应的位置，所述防水部包括设置在所述本体上的凹陷结构，所述凹陷结构内设有用于连通所述本体内外两侧的通气孔。
其中，所述通气孔位于所述凹陷结构的上部。
其中，所述凹陷结构包括底面和若干与之连接的侧壁，所述通气孔设置在所述底面与所述侧壁的连接处。
其中，所述通气孔为“一”字形长孔或“L”形孔。
其中，所述凹陷结构的数量为多个，多个所述凹陷结构整体形成圆形或环形的防水部。
一种箱扇，包括：壳体、风叶、电机、以及如上所述的箱扇后网，所述风叶与所述电机连接，所述风叶与电机均安装在所述壳体内，所述箱扇后网安装在所述壳体上，所述电机与所述箱扇后网的内侧相对。
其中，在所述箱扇后网的内侧，且位于所述防水部的上方设有遮雨盖。
其中，所述遮雨盖为两端朝下的弧形板。
其中，所述电机上方设有电机保护罩，所述电机保护罩连接有导水盖，所述导水盖位于所述电机和遮雨盖之间。
其中，所述电机保护罩的材质为耐火材料。
其中，还包括用于切换所述电机运行状态的开关，所述开关设有用于阻止外界雨水进入所述开关的防护单元。
其中，所述开关设置在所述箱扇后网上，所述防护单元为开关保护盒，所述开关保护盒设置在所述开关外侧。
其中，所述开关设置在所述箱扇后网上，所述防护单元为挡水板，所述挡水板设置在所述风叶与开关之间。
(三)有益效果
上述技术方案具有如下优点：本发明所述的箱扇后网，通过设置通气孔，保证箱扇的通风；将通气孔设置在凹陷结构内，雨水可以顺着凹陷结构朝下流出，而不会进入通气孔内，即在保证通气的前提下实现了防水，避免通风过程中外界雨水直接落入通气孔；通气孔设置在凹陷结构的上方，进一步减小了雨水溅入通气孔的几率，进一步提高了防水效果。
本发明所述的箱扇，电机的后端直接与该箱扇后网的防水部相 对，在实现通风散热的前提下，保证雨水不会直接经防水部流向电机；遮雨盖、导水盖的设置，可以将从后窗的其他区域进入的雨水引导至电机以外的区域再流下，彻底避免雨水进入电机现象的发生，可以有效避免漏电和电机着火等现象的发生，延长电机的使用寿命；电机保护罩的材质为耐火材料，可以防止风叶起火，满足电机的防水和防火要求；开关设置防护单元，尤其是当防护单元为开关保护盒时，可以对开关起到全面防护，避免雨水进入开关，确保开关正常运行，保障安全。
附图说明
图1是本发明所述箱扇的结构示意图之一；
图2是本发明所述箱扇的结构示意图之二；
图3是图2中A处的局部放大图；
图4是本发明所述箱扇后网的结构示意图；
图5是本发明所述箱扇后网的半剖结构示意图；
图6是图5中B处的局部放大图；
图7是图6中C处的局部放大图；
图8是本发明所述电机保护罩的结构示意图；
图9是本发明实施例三所述箱扇的结构示意图。
其中，1、箱扇后网；11、遮雨盖；12、防水部；121、底面；122、侧壁；123、通气孔；2、电机保护罩；21、导水盖；3、电机；4、风叶；5、壳体；6、开关；7、防护单元。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，除非另有说明，“多个”的含义是两个或两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”、“前端”、“后端”、“头部”、“尾部”等指示的方位或位置关系为基于 附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本发明中的具体含义。
实施例一：
如图4-7所示，本实施例公布了一种箱扇后网，包括：竖直设置的本体，所述本体上设有防水部12，所述防水部12设置于与箱扇内的电机4对应的位置，所述防水部12包括设置在所述本体上的凹陷结构，所述凹陷结构内设有用于连通所述本体内外两侧的通气孔123。
由于重力的存在，外界雨水和尘土一般都是从斜上方或正上方落下的，由于通气孔123设置在凹陷结构内，而不是直接裸露在本体的外侧，即使有雨水或尘土从斜上方落下，也会被阻挡，只能沿着本体的外表面流下，不会直接落入通气孔123，更不会从凹陷结构内的通气孔123进到本体的内侧，在实现通气散热的同时，也实现了防雨、防水的功能。
具体的，所述凹陷结构设置在所述防水部12的上半部，所述通气孔123位于所述凹陷结构的上部。所述凹陷结构包括底面121和若干与之连接的侧壁122，所述通气孔123设置在所述底面121与所述侧壁122的连接处。所述通气孔123为“一”字形长孔或“L”形孔；即要么设置在底面121与其中一个侧壁122的连接处，形成“一”字 形长孔；要么设置在底面121与及两个相邻的侧壁122之间，形成“L”形孔。
如图6和7所示，所述凹陷结构的数量为多个，多个所述凹陷结构整体形成圆形或环形的防水部12。
为方便制造，一般将防水部12整体设置成圆形，多个凹陷结构均匀分布在该圆形区域内，但是只有上半部的凹陷结构内设有通气孔123，防止上部的雨水流下后进入下方凹陷结构内的通气孔123。为进一步提高防雨、防水的效果，将通气孔123设置在底面121的上边缘与侧壁122的连接处，如图6和图7所示。这样雨水落下后将直接被侧壁122挡住，不会落入侧壁122底部的通气孔123内；即使有部分雨水落入凹陷结构内，由于通气孔123在底面121的上边缘处，因此雨水根本不会从通气孔123流到本体内侧，在实现通气的前提下、进一步实现了防雨、防水、防水等多项功能。
实施例二：
如图1-3及图8所示，本实施例具体公布了一种箱扇，包括：壳体5、风叶3、电机4、以及如实施例一所述的箱扇后网1，所述风叶3与所述电机4连接，所述风叶3与电机4均安装在所述壳体5内，所述箱扇后网1安装在所述壳体5上，所述电机4与所述箱扇后网1的内侧相对。
即利用实施例一所述的箱扇后网1实现对电机4的通风和防护，避免使用过程中雨水从箱扇后网1进入电机4，保证电机4的正常通风的同时可以实现防水。
具体的，所述电机4与所述防水部12相对。风叶3装在电机4前端的主轴上，电机4的后端与防水部12相对，主要实现对电机4的防护，防止外界雨水等进入电机4。
进一步的，在所述箱扇后网1的内侧，且位于所述防水部12的上方设有遮雨盖11。所述遮雨盖11为两端朝下的弧形板。由于风叶 3旋转时，后窗处会有大量气流通过，因此在防水部12周围的区域仍然采用常规的网格结构，该网格结构并不能实现防水功能，为避免外界雨水等从该网格处进入电机4，在防水部12的上方设有遮雨盖11，可以将电机4上方进来的雨水阻挡并引导至其他区域流出，有效防止水流至电机4上。
更进一步的，所述电机4上方设有电机保护罩2，所述电机保护罩2连接有导水盖21，所述导水盖21位于所述电机4和遮雨盖11之间。遮雨盖11流下来的与水可以顺着下方的电机保护罩2、导水盖21从其他区域落下，不会落入电机4内。
优选的，所述电机保护罩2的材质为耐火材料。风叶3高速旋转容易升温起火，电机保护罩2采用耐火材料，可以有效防止风叶3起燃，保证使用安全。
实施例三：
如图9所示，本实施例是在实施例二的基础上的进一步扩展，所述箱扇还包括用于切换所述电机3运行状态的开关6，所述开关6设有用于阻止外界雨水进入所述开关6的防护单元7。防护单元7的设置可以有效保护开关6免受雨水侵扰，避免因雨水进入而发生漏电、短路现象，确保开关6正常运行，保障安全。
优选的，所述开关6设置在所述箱扇后网1上，所述防护单元7为开关保护盒，所述开关保护盒设置在所述开关6外侧。开关保护盒可以对开关6起到多方向、全面防护，避免雨水进入开关6，防护效果最佳。
优选的，所述开关6设置在所述箱扇后网1上，所述防护单元7为挡水板，所述挡水板设置在所述风叶4与开关6之间。风叶4转动过程中，由于离心力的存在，风叶4上的水会被甩出去溅到开关6上，因此在风叶4与开关6之间设置了挡水板作为防护单元7，阻挡风叶4上溅来的水滴，确保开关6正常运行，保障安全。
由以上实施例可以看出，本发明实施例一所述的箱扇后网1，通过设置通气孔123，保证箱扇的通风；将通气孔123设置在凹陷结构内，雨水可以顺着凹陷结构朝下流出，而不会进入通气孔123内，即在保证通气的前提下实现了防水，避免通风过程中外界雨水直接落入通气孔123；通气孔123设置在凹陷结构的上方，进一步减小了雨水溅入通气孔123的几率，进一步提高了防水效果。本发明实施例二所述的箱扇，电机4的后端直接与该箱扇后网1的防水部12相对，在实现通风散热的前提下，保证雨水不会直接经防水部12流向电机4；遮雨盖11、导水盖21的设置，可以将从后窗的其他区域进入的雨水引导至电机4以外的区域再流下，彻底避免雨水进入电机4现象的发生，可以有效避免漏电和电机4着火等现象的发生，延长电机4的使用寿命；电机保护罩2的材质为耐火材料，可以防止风叶3起火，满足电机4的防水和防火要求；开关6设置防护单元7，尤其是当防护单元7为开关保护盒时，可以对开关6起到全面防护，避免雨水进入开关6，确保开关6正常运行，保障安全。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (13)

  1. 一种箱扇后网，其特征在于，包括：竖直设置的本体，所述本体上设有防水部(12)，所述防水部(12)设置于与箱扇内的电机(4)对应的位置，所述防水部(12)包括设置在所述本体上的凹陷结构，所述凹陷结构内设有用于连通所述本体内外两侧的通气孔(123)。
  2. 如权利要求1所述的箱扇后网，其特征在于，所述通气孔(123)位于所述凹陷结构的上部。
  3. 如权利要求2所述的箱扇后网，其特征在于，所述凹陷结构包括底面(121)和若干与之连接的侧壁(122)，所述通气孔(123)设置在所述底面(121)与所述侧壁(122)的连接处。
  4. 如权利要求3所述的箱扇后网，其特征在于，所述通气孔(123)为“一”字形长孔或“L”形孔。
  5. 根据权利要求1所述的箱扇后网，其特征在于，所述凹陷结构的数量为多个，多个所述凹陷结构整体形成圆形或环形的防水部(12)。
  6. 一种箱扇，其特征在于，包括：壳体(5)、风叶(3)、电机(4)、以及如权利要求1-5任一项所述的箱扇后网(1)，所述风叶(3)与所述电机(4)连接，所述风叶(3)与电机(4)均安装在所述壳体(5)内，所述箱扇后网(1)安装在所述壳体(5)上，所述电机(4)与所述箱扇后网(1)的内侧相对。
  7. 如权利要求6所述的箱扇，其特征在于，在所述箱扇后网(1)的内侧，且位于所述防水部(12)的上方设有遮雨盖(11)。
  8. 如权利要求7所述的箱扇，其特征在于，所述遮雨盖(11)为两端朝下的弧形板。
  9. 如权利要求7所述的箱扇，其特征在于，所述电机(4)上方设有电机保护罩(2)，所述电机保护罩(2)连接有导水盖(21)，所 述导水盖(21)位于所述电机(4)和遮雨盖(11)之间。
  10. 如权利要求9所述的箱扇，其特征在于，所述电机保护罩(2)的材质为耐火材料。
  11. 如权利要求6-10任一项所述的箱扇，其特征在于，还包括用于切换所述电机(4)运行状态的开关，所述开关设有用于阻止外界雨水进入所述开关的防护单元。
  12. 如权利要求11所述的箱扇，其特征在于，所述开关设置在所述箱扇后网(1)上，所述防护单元为开关保护盒，所述开关保护盒设置在所述开关外侧。
  13. 如权利要求11所述的箱扇，其特征在于，所述开关设置在所述箱扇后网(1)上，所述防护单元为挡水板，所述挡水板设置在所述风叶(3)与开关之间。
PCT/CN2016/105190 2015-11-19 2016-11-09 一种箱扇后网及箱扇 WO2017084524A1 (zh)

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