WO2015078292A1 - 换气扇的照明装置 - Google Patents

换气扇的照明装置 Download PDF

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Publication number
WO2015078292A1
WO2015078292A1 PCT/CN2014/090691 CN2014090691W WO2015078292A1 WO 2015078292 A1 WO2015078292 A1 WO 2015078292A1 CN 2014090691 W CN2014090691 W CN 2014090691W WO 2015078292 A1 WO2015078292 A1 WO 2015078292A1
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WO
WIPO (PCT)
Prior art keywords
power box
light
box body
lamp
socket
Prior art date
Application number
PCT/CN2014/090691
Other languages
English (en)
French (fr)
Inventor
李刚毅
钟柏东
侯冠成
坪佐大辅
Original Assignee
广东松下环境系统有限公司
松下电器产业株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东松下环境系统有限公司, 松下电器产业株式会社 filed Critical 广东松下环境系统有限公司
Priority to US14/914,903 priority Critical patent/US10274191B2/en
Publication of WO2015078292A1 publication Critical patent/WO2015078292A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • F21V33/0096—Fans, e.g. ceiling fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/006—Fastening of light sources or lamp holders of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/006—Fastening of light sources or lamp holders of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base
    • F21V19/0065—Fastening of light sources or lamp holders of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base at least one conductive element acting as a support means, e.g. spring-mounted contact plate in a bayonet base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/006—Fastening of light sources or lamp holders of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base
    • F21V19/007—Fastening of light sources or lamp holders of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base the support means engaging the vessel of the source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/008—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being outside the housing of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/06—Fastening incandescent mantles or other incandescent bodies to lamp parts; Suspension devices for incandescent mantles or other incandescent bodies

Definitions

  • the present invention relates to a ventilating fan, and more particularly to a lighting device for a ventilating fan.
  • a ventilating fan (exhaust fan) installed between the roof and the ceiling is a common ventilation device.
  • an illuminating device may be provided on the hood of the ventilating fan.
  • U.S. Patent No. 5,934,783 discloses a ventilating fan with a illuminating device. As shown in Fig. 1, an opening 1 is provided under the frame 5, and a blower 3 is provided in the frame 5.
  • a mask 15 is provided at the opening 1, and a central portion of the mask 15 is provided with a lighting device 25 covering the opening 1, to which the lighting socket 8 is fixed.
  • a detachable fluorescent lamp 7 is mounted at the lighting socket 8.
  • An illumination cover 14 detachably attachable to the mask is attached to the center of the mask 15.
  • the fluorescent lamp 7 When the user installs the fluorescent lamp 7, it is sufficient to insert the fluorescent lamp 7 into the lighting socket 8 and then mount the lighting cover 14. Since the fluorescent tube 7 is illuminated around the tube, the fluorescent lamp 7 can be directly irradiated into the room through the illumination cover 14 regardless of the direction in which the fluorescent lamp 7 is inserted into the illumination socket 8.
  • some of the light-emitting units can only emit light on one side, for example, when the designer arranges the LED lamp wafers on one of the faces of the LED lamp tubes, when the user installs the LED lights.
  • the LED lamp is flipped, that is, the face with the LED lamp chip facing up, and the LED lamp chip is not placed face down, the light emitted from the LED lamp chip is diverged upward to the reflector and then reflected. After the lighting cover is applied to the room, the brightness of the light that the LED lamp illuminates the room is greatly reduced.
  • the present invention provides a lighting device for a ventilating fan, comprising a illuminating module for accommodating a illuminating unit and accommodating a DC power supply for the illuminating unit
  • the power box module is characterized in that: the light-emitting module and the power box module are provided with an anti-flip structure for allowing the light-emitting unit to be installed only in one direction.
  • the light emitting unit is composed of a lamp cap, a lamp tube and a light emitting chip arranged on one surface of the lamp tube;
  • the power box module includes a power box body and a light emitting unit disposed in the power box body
  • the anti-flip-chip structure includes a flange disposed on a side of the lamp tube on a side of the lamp tube, and a protruding piece disposed on a side of the power box body adjacent to the light-emitting module.
  • the protruding edge is located on a lower side of the lamp unit, and the protruding piece is disposed on a top of the power box body, and the protruding piece protrudes from a horizontal projection surface of the power box body.
  • the protruding edge is located on an upper side of the lamp unit, the protruding piece is disposed at a bottom of the power box body, and the protruding piece protrudes from a horizontal projection surface of the power box body.
  • a positioning piece shorter than the protruding piece is disposed on a side of the power module body near a bottom of the light emitting module, and the positioning piece and the light emitting unit are inserted after the light emitting unit is inserted into the socket. There is a gap between the flanges of the lamp cap.
  • the light emitting unit is composed of a lamp cap, a lamp tube and a light emitting chip arranged on one surface of the lamp tube
  • the power box module includes a power box body and a light emitting unit disposed in the power box body a socket inserted into the socket
  • the anti-flip structure includes a convex portion disposed on a surface of the light unit head opposite to the socket, and a concave portion corresponding to the convex portion disposed on the socket or Open the hole.
  • the light emitting unit is composed of a lamp cap, a lamp tube and a light emitting chip arranged on one surface of the lamp tube
  • the power box module includes a power box body and a light body disposed in the power box body for the light emitting a socket into which the lamp cap of the unit is inserted
  • the anti-flip structure includes a recess or an opening provided in a surface of the lamp unit opposite to the socket, and is disposed on the socket, and is engaged in the recess or The convex part of the opening.
  • the flange forms a discontinuous shape.
  • An advantage of the present invention is that the mounting is convenient, the flip-chip of the light-emitting unit does not occur, and the brightness of the light that the light-emitting unit illuminates into the room is ensured.
  • Figure 1 is a schematic view of the prior art
  • FIG. 2A is a perspective view of a first embodiment of the present invention
  • Figure B2 is another perspective perspective view of the first embodiment of the present invention.
  • 3A is a perspective view of a light emitting unit in a first embodiment of the present invention.
  • 3B is a perspective view showing another angle of the light emitting unit in the first embodiment of the present invention.
  • Figure 4 is a schematic view of a second embodiment of the present invention.
  • Figure 5 is a schematic view of a third embodiment of the present invention.
  • Figure 6 is a schematic view of a fourth embodiment of the present invention.
  • Figure 7 is a schematic view of a fifth embodiment of the present invention.
  • FIGS. 3A and 3B are perspective views of different angles of the light-emitting unit according to the first embodiment of the present invention.
  • a lighting device 10 for a ventilating fan of the present invention includes a lighting module having an illumination mask 11 and a reflective cover 12 for accommodating the light emitting unit 20 and for accommodating a direct current for the lighting unit 20.
  • the power box module of the power source, the light emitting module and the power box module are provided with an anti-flip structure for allowing the light emitting unit 20 to be installed only in one direction.
  • the light-emitting unit 20 is composed of a lamp cap 21, a lamp tube 22, and a light-emitting chip 23 arranged on one surface of the lamp tube 22.
  • the present invention is described by taking an LED lamp as an example, that is, the light-emitting unit 20 is an LED lamp.
  • the lamp head 21, the lamp tube 22, and the LED light-emitting chip 23 arranged on one face of the lamp tube 22 are composed.
  • the power box module includes a power box body 31 and a socket 32 disposed in the power box body 31 for inserting the lamp head 21 of the LED lamp; the power box module is fixed on the light emitting module, and the LED light is passed through the cable. Power is supplied to form a lighting device.
  • the bottom surface 24 of the LED lamp is arranged with the LED lamp chip 23, and a plurality of parallel heat dissipation ribs 26 may be disposed on the top surface 25 opposite to the bottom surface 24 of the LED lamp wafer 23.
  • the anti-flip structure of the bottom surface 24 of the LED lamp can be installed only on the side of the illumination mask 11 by the light-emitting module and the power box module. When the LED lamp is installed by the user, only the LED lamp can be used.
  • the bottom surface 24 faces the side of the illumination mask 11 to insert the base 21 into the socket 32 of the power box module.
  • the anti-flip structure includes a flange 27 disposed on a half circumference of the base 21 of the light-emitting unit 20 on the side of the lamp tube 22, and a protruding piece disposed on a side of the power box body 31 near the light-emitting module. 33.
  • the flange 27 is located at the lower side 28 of the lamp cap 21 of the light emitting unit 20, and the protruding piece 33 is disposed at the top 34 of the power box body 31, and the protruding piece 33 protrudes from the level of the power box body 31. Projection surface.
  • the lower half of the base 21 opposite to the bottom surface 24 of the LED lamp is referred to as the lower side 28 of the base 21, and the upper half of the base 21 opposite the top surface 25 of the LED lamp is referred to as the base 21 Upper side 29. That is, the side of the base 21 facing the illumination mask 11 is referred to as the lower side 28 of the base 21, and the side of the base 21 facing the roof is referred to as the upper side 29 of the base 21.
  • the protruding piece 33 is disposed on the top portion 34 of the power box body 31 and protrudes from the horizontal projection surface of the power box body 31 (ie, when the light module and the power box) When the body 31 is connected, it extends to the side of the reflective cover 12 of the light emitting module.
  • the user only installs the bottom surface 24 of the LED lamp downward (ie, toward the illumination mask 11), and the flange 27 of the lower side 28 of the lamp cap 21 does not touch the protruding piece 33 of the top portion 34 of the power box body 31, and the lamp cap 21 can be inserted.
  • the socket 32 of the power box body 31 is inside.
  • the power supply box body 31 is adjacent to the bottom portion 36 of one side of the light emitting module, and a positioning piece 35 shorter than the protruding piece 33 is extended toward the light emitting module side.
  • a gap 40 is left between the positioning piece 35 and the flange 27 of the base 21 of the light-emitting unit 20.
  • the positioning piece 35 can support the weight of a part of the lamp cap 21, and the positioning piece 35 of the bottom portion 36 of the power supply box body 31 and the protruding piece 33 of the top portion 34 of the power supply box body 31 together fix the position of the lamp cap 21, thereby Further fix the position of the LED light to prevent it Because the part of the tube 22 is relatively heavy, the tail of the tube is slightly lowered and is too close to the illumination mask 11, resulting in a significant difference in the brightness of the light reflected onto the illumination mask 11 (ie, the tube away from the portion of the lamp 21 is closer to the head of the LED lamp) The light of the 21 part of the lamp is illuminated to the illumination mask 11 is brighter).
  • the light-emitting unit can be prevented from being flipped, and the brightness of the light that is irradiated into the room by the light-emitting unit and the average of the light that is irradiated onto the illumination mask can be ensured, and the appearance can be improved.
  • Figure 4 is a schematic view of a second embodiment of the present invention.
  • the illuminating device 50 of the ventilating fan of the present embodiment is located on the upper side 29 of the base 21 of the illuminating unit 20, and the protruding piece 52 is disposed on the power box body 31.
  • the bottom piece 36 protrudes from the horizontal projection surface of the power box body 31 (ie, when the light emitting module and the power box body 31 are connected to extend onto the illumination mask 11 of the light emitting module).
  • the user only installs the bottom surface 24 of the LED lamp downward (ie, toward the illumination mask 11), and the flange 51 of the upper side 29 of the lamp cap 21 does not touch the tab 52 of the bottom portion 36 of the power box body 31, and the lamp cap 21 can be inserted.
  • the socket 32 of the power box body 31 is inside.
  • the protruding piece 52 extending to the illumination mask 11 of the light-emitting module can also support the weight of a part of the lamp cap 21, thereby further fixing the position of the LED lamp, preventing the tail of the lamp tube 22 from falling slightly due to the large weight of the lamp tube 22 portion. Too close to the illumination mask 11 results in a significant difference in the brightness of the light impinging on the illumination mask 11, i.e., the tube remote from the portion of the lamp cap 21 is brighter than the tube near the portion of the LED lamp head 21 that illuminates the illumination mask 11. .
  • FIG. 5 is a schematic view of a third embodiment of the present invention.
  • the illuminating unit 20 is composed of a base 21, a bulb 22, and a luminescent wafer (not shown) arranged on one surface of the bulb 22.
  • the power box module package The power box body 31 and the socket 32 disposed in the power box body 31 for inserting the lamp cap 21 of the light emitting unit 20; the anti-flip structure comprises a lamp head 21 disposed on the light emitting unit 20 A convex portion 61 on a surface opposite to the socket 32, and a concave portion or opening 62 provided in the socket 32 corresponding to the convex portion 61.
  • the convex portion 61 of the lamp cap 21 hits the socket wall, so that the lamp cap 21 cannot be inserted into the socket 32. Therefore, the user only installs the bottom surface 24 of the LED lamp downward (ie, toward the illumination mask 11), and the convex portion 61 of the lamp cap 21 does not hit the wall of the socket 32 (the surrounding portion of the hole of the socket 32), but is inserted into the recess or In the opening 62, the lamp cap 21 can be inserted into the socket 32 of the power box body 31, so that the light-emitting unit 20 can be prevented from being flipped.
  • FIG. 6 is a schematic view of a fourth embodiment of the present invention.
  • the illuminating unit 20 is composed of a base 21, a bulb 22, and a luminescent wafer (not shown) arranged on one surface of the bulb 22,
  • the power box module includes a power box body 31 and a socket 32 disposed in the power box body 31 for inserting the lamp cap 21 of the light emitting unit 20;
  • the anti-flip structure includes the light emitting unit.
  • the installation manner of the fourth embodiment of the present invention is similar to the installation manner of the third embodiment, and the principle is the same as the above, and details are not described herein again.
  • Figure 7 is a schematic view of a fifth embodiment of the present invention. As shown, the flange 100 forms a discontinuous shape.
  • the user only installs the bottom surface 24 of the LED lamp downward (ie, toward the illumination mask 11), and the flange 100 of the lower side 28 of the lamp cap 21 does not touch the protruding piece 33 of the top portion 34 of the power box body 31, and the lamp cap 21 can be inserted.
  • the socket 32 of the power box body 31 is inside.
  • the flange 100 forms a discontinuous shape, the amount of material of the portion of the broken flange 100 can be reduced as compared to the annular shape forming the half circumference. In other words, the effects and effects The half-cycle ring is the same, which also reduces the cost of materials.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

一种换气扇的照明装置（10），包括用于容置发光单元（20）的发光模块以及用于容置为发光单元提供直流电源的电源盒模块，发光模块和电源盒模块上设有使发光单元只能朝一个方向安装的防倒装结构。这种照明装置的优点是安装便利，不会出现发光单元倒装的情况，确保发光单元照射到室内的光的亮度。

Description

换气扇的照明装置 技术领域
本发明关于一种换气扇，特别是关于一种换气扇的照明装置。
背景技术
安装于屋顶和天花板之间的换气扇(排气扇)是一种常见的通风设备。为了使该换气扇具备照明功能，可以在换气扇的面罩上设置照明装置。美国专利Patent Number：5,934,783公开了一种带照明装置的换气扇，如图1所示，在框架5的下面设有开口1，框架5中设有送风机3。在所述开口1处设有面罩15，该面罩15的中央设有覆盖所述开口1的照明装置25，照明插座8固定在其上。并且，照明插座8处安装有可自由拆卸的荧光灯7。在面罩15的中央安装有可以在面罩上自由拆卸的照明盖14。
用户安装荧光灯7时，只要把荧光灯7插入照明插座8后安装照明盖14就可以了。因为荧光灯7的灯管周围都发光，所以无论以哪个方向把荧光灯7插入照明插座8内，荧光灯7的光都可以直接透过照明盖14照射到室内。
除可以周围发光的上述荧光灯外，另外有一些发光单元是只可以单面发光的，例如在设计人员把LED灯晶片排列于LED灯灯管的其中一个面上的情况下，当用户安装LED灯时，如果把LED灯倒装，即：把设有LED灯晶片的面朝上，没有设置LED灯晶片的面朝下插入插座的话，LED灯晶片发出的光就会向上发散到反射板再反射到照明盖后才能照射到室内，因此LED灯照射到室内的光的亮度就会大大降低。
发明内容
本发明的目的在于，提供一种换气扇的照明装置，可以防止发光单元倒装。
为实现上述目的，本发明提供一种换气扇的照明装置，包括用于容置发光单元的发光模块以及用于容置为所述发光单元提供直流电源 的电源盒模块，其特征在于：所述发光模块和所述电源盒模块上设有使所述发光单元只能朝一个方向安装的防倒装结构。
所述发光单元由灯头、灯管和排列于所述灯管的一个面上的发光晶片组成；所述电源盒模块包括电源盒本体和设置于所述电源盒本体内的、供所述发光单元的灯头插入的插座；所述防倒装结构包括设置于所述发光单元的灯头靠所述灯管侧的半周的突缘，以及设置于所述电源盒本体靠近发光模块一面的突出片。
所述突缘位于所述发光单元灯头的下侧，所述突出片设置于所述电源盒本体的顶部，所述突出片突出于所述电源盒本体的水平投影面。
所述突缘位于所述发光单元灯头的上侧，所述突出片设置于所述电源盒本体的底部，所述突出片突出于所述电源盒本体的水平投影面。
所述电源盒本体靠近发光模块一面的底部向所述发光模块侧延设比所述突片短的定位片，当所述发光单元灯头插入所述插座后，所述定位片与所述发光单元灯头的突缘之间留有空隙。
所述发光单元由灯头、灯管和排列于所述灯管的一个面上的发光晶片组成，所述电源盒模块包括电源盒本体和设置于所述电源盒本体内的、供所述发光单元的灯头插入的插座；所述的防倒装结构包括设置于所述发光单元灯头与所述插座相对的面的凸部，以及设置于所述插座上的，与所述凸部对应的凹部或开孔。
所述发光单元，由灯头、灯管和排列于所述灯管的一个面上的发光晶片组成，所述电源盒模块包括电源盒本体和设置于所述电源盒本体内的、供所述发光单元的灯头插入的插座；所述的防倒装结构包括设置于所述发光单元灯头与所述插座相对的面的凹部或开孔，以及设置于所述插座上的、卡入所述凹部或开孔的凸部。
所述突缘形成间断的形状。
本发明的优点在于，安装便利，不会出现发光单元倒装的情况，确保发光单元照射到室内的光的亮度。
附图说明
图1是现有技术的示意图；
图2A是本发明第一实施例的立体示意图；
图B2是本发明第一实施例另一角度立体示意图；
图3A是本发明第一实施例中发光单元的立体示意图；
图3B是本发明第一实施例中发光单元另一角度的立体示意图；
图4是本发明第二实施例的示意图；
图5是本发明第三实施例的示意图；
图6是本发明第四实施例的示意图。
图7是本发明第五实施例的示意图。
具体实施方式
图2A、图2B是本发明第一实施例的不同角度的立体示意图；图3A、图3B是本发明第一实施例中发光单元的不同角度的立体示意图。
如图所示，本发明的一种换气扇的照明装置10，包括具有照明面罩11和反射盖12的、用于容置发光单元20的发光模块以及用于容置为所述发光单元20提供直流电源的电源盒模块，所述发光模块和所述电源盒模块上设有使所述发光单元20只能朝一个方向安装的防倒装结构。
所述发光单元20，由灯头21、灯管22和排列于所述灯管22的一个面上的发光晶片23组成；本发明以LED灯为例进行说明，即所述发光单元20为LED灯，由灯头21、灯管22和排列于所述灯管22的一个面上的LED发光晶片23组成。
电源盒模块包括电源盒本体31和设置于所述电源盒本体31内的、供所述LED灯的灯头21插入的插座32；电源盒模块固定在发光模块上，并通过线缆为上述LED灯供电而形成照明装置。
所述的LED灯的底面24排列LED灯晶片23，与排列LED灯晶片23的底面24相对的顶面25可以设置复数平行的散热筋26。
通过所述发光模块和所述电源盒模块上设有使所述LED灯的底面24只能朝所述照明面罩11侧安装的防倒装结构，用户安装LED灯时，只能把LED灯的底面24朝向照明面罩11侧才能把灯头21插入电源盒模块的插座32上。
这样就可以确保LED灯安装在电源盒模块上后，LED灯晶片的底面 24朝向照明面罩11，从而LED灯晶片发出的光直接透过照明面罩11照射到室内。
本实施例中，防倒装结构包括设置于所述发光单元20的灯头21靠所述灯管22侧的半周的突缘27，以及设置于所述电源盒本体31靠近发光模块一面的突出片33。
所述突缘27位于所述发光单元20灯头21的下侧28，所述突出片33设置于所述电源盒本体31的顶部34，所述突出片33突出于所述电源盒本体31的水平投影面。
本发明把所述灯头21与所述LED灯的底面24相对的下半周称为灯头21的下侧28，把所述灯头21与所述LED灯的顶面25相对的上半周称为灯头21的上侧29。即所述灯头21朝向照明面罩11的一侧称为灯头21的下侧28，所述灯头21朝向屋顶的一侧称为灯头21的上侧29。
所述半周的突缘27设置于灯头21的下侧28的话，所述突出片33设置于电源盒本体31顶部34，且突出于电源盒本体31的水平投影面(即当发光模块和电源盒本体31连接时延伸到发光模块的反射盖12侧)。
用户安装LED灯时，如果把LED灯的底面24朝屋顶侧安装的话，灯头21下侧28的突缘27就会碰到电源盒本体31顶部34的突出片33，使灯头21无法继续插入电源盒本体31内的插座32。
因此用户只有把LED灯的底面24朝下(即朝向照明面罩11)安装，灯头21下侧28的突缘27才不会碰到电源盒本体31顶部34的突出片33，灯头21才可以插入电源盒本体31的插座32内。
所述电源盒本体31靠近发光模块一面的底部36向所述发光模块侧延设比所述突片33短的定位片35，当所述发光单元20的灯头21插入所述插座32后，所述定位片35与所述发光单元20的灯头21的突缘27之间留有空隙40。
所述定位片35可以支撑住灯头21的一部分的重量，且所述电源盒本体31的底部36的定位片35和电源盒本体31的顶部34的突出片33共同固定住灯头21的位置，从而进一步固定住LED灯的位置，防止 因为灯管22部分重量较大，灯管尾部稍稍下坠后过于贴近照明面罩11，导致反射到照明面罩11上的光的亮度出现明显的差别(即远离灯头21部分的灯管比靠近LED灯灯头21部分的灯管照射到照明面罩11的光更亮)。
且因为当LED灯灯头21插入所述插座32后，所述定位片35与所述LED灯灯头21的突缘27之间留有空隙40，所以在LED灯的安装过程中，所述突缘27不会碰触到定位片35，也就是说，定位片35不会妨碍LED灯的安装。
由此结构可防止发光单元倒装，确保发光单元照射到室内的光的亮度和照射到照明面罩上的光的平均度，提高外观性。
图4是本发明第二实施例的示意图。如图所示，与第一实施例不同的是本实施例的换气扇的照明装置50中突缘51位于所述发光单元20灯头21的上侧29，突出片52设置于所述电源盒本体31的底部36，所述突出片52突出于所述电源盒本体31的水平投影面(即当发光模块和电源盒本体31连接时延伸到发光模块的照明面罩11上)。
用户安装LED灯时，如果把LED灯的底面24朝上安装的话，灯头21上侧29的突缘51就会碰到电源盒本体31底部36的突片52，使灯头21无法继续插入电源盒本体31内。
因此用户只有把LED灯的底面24朝下(即朝向照明面罩11)安装，灯头21上侧29的突缘51才不会碰到电源盒本体31底部36的突片52，灯头21才可以插入电源盒本体31的插座32内。
而且延伸到发光模块的照明面罩11上的突出片52还可以支撑住灯头21的一部分的重量，从而进一步固定住LED灯的位置，防止因为灯管22部分重量较大，灯管22尾部稍稍下坠后过于贴近照明面罩11，导致照射到照明面罩11上的光的亮度出现明显的差别，即远离灯头21部分的灯管比靠近LED灯灯头21部分的灯管照射到照明面罩11的光更亮。
图5是本发明第三实施例的示意图。如图所示，本实施例的换气扇的照明装置60，所述发光单元20由灯头21、灯管22和排列于所述灯管22的一个面上的发光晶片(图中未示)组成，所述电源盒模块包 括电源盒本体31和设置于所述电源盒本体31内的、供所述发光单元20的灯头21插入的插座32；所述的防倒装结构包括设置于所述发光单元20灯头21与所述插座32相对的面的凸部61，以及设置于所述插座32上的，与所述凸部61对应的凹部或开孔62。
用户安装LED灯时，如果把LED灯的底面24朝屋顶侧安装的话，灯头21的凸部61就会碰到插座壁，使灯头21无法插入插座32内。因此用户只有把LED灯的底面24朝下(即朝向照明面罩11)安装，灯头21的凸部61才不会碰到插座32的壁(插座32的孔的周围部分)，而是插入凹部或开孔62内，这样灯头21才可以插入电源盒本体31的插座32内，这样可以防止发光单元20倒装。
图6是本发明第四实施例的示意图。如图所示，本实施例的换气扇的照明装置70，所述发光单元20由灯头21、灯管22和排列于所述灯管22的一个面上的发光晶片(图中未示)组成，所述电源盒模块包括电源盒本体31和设置于所述电源盒本体31内的、供所述发光单元20的灯头21插入的插座32；所述的防倒装结构包括设置于所述发光单元20灯头21与所述插座32相对的面的凹部或开孔72，以及设置于所述插座31上的、卡入所述凹部或开孔72的凸部71。
本发明第四实施例的安装方式与第三实施例的安装方式类似，原理与上述内容一致，不再赘述。
图7是本发明第五实施例的示意图。如图所示，突缘100形成间断的形状。
通过上述结构，用户安装LED灯时，如果把LED灯的底面24朝屋顶侧安装的话，灯头21下侧28的突缘100就会碰到电源盒本体31顶部34的突出片33，使灯头21无法继续插入电源盒本体31内的插座32。
因此用户只有把LED灯的底面24朝下(即朝向照明面罩11)安装，灯头21下侧28的突缘100才不会碰到电源盒本体31顶部34的突出片33，灯头21才可以插入电源盒本体31的插座32内。
且因为突缘100形成间断的形状，与形成半周的环形相比，可以削减断开的突缘100部分的材料量。也就是说，产生的作用和效果与 半周环形相同，还可以削减材料的成本。

Claims (8)

  1. 一种换气扇的照明装置，包括用于容置发光单元的发光模块以及用于容置为所述发光单元提供直流电源的电源盒模块，
    其特征在于：
    所述发光模块和所述电源盒模块上设有使所述发光单元只能朝一个方向安装的防倒装结构。
  2. 根据权利要求1所述的换气扇的照明装置，其特征在于：所述发光单元由灯头、灯管和排列于所述灯管的一个面上的发光晶片组成；所述电源盒模块包括电源盒本体和设置于所述电源盒本体内的、供所述发光单元的灯头插入的插座；
    所述防倒装结构包括设置于所述发光单元的灯头靠所述灯管侧的半周的突缘，以及设置于所述电源盒本体靠近发光模块一面的突出片。
  3. 根据权利要求2所述的换气扇的照明装置，其特征在于：所述突缘位于所述发光单元灯头的下侧，所述突出片设置于所述电源盒本体的顶部，所述突出片突出于所述电源盒本体的水平投影面。
  4. 根据权利要求2所述的换气扇的照明装置，其特征在于：所述突缘位于所述发光单元灯头的上侧，所述突出片设置于所述电源盒本体的底部，所述突出片突出于所述电源盒本体的水平投影面。
  5. 根据权利要求3所述的换气扇的照明装置，其特征在于：所述电源盒本体靠近发光模块一面的底部向所述发光模块侧延设比所述突片短的定位片，当所述发光单元灯头插入所述插座后，所述定位片与所述发光单元灯头的突缘之间留有空隙。
  6. 根据权利要求1所述的换气扇的照明装置，其特征在于：所述发光单元由灯头、灯管和排列于所述灯管的一个面上的发光晶片组成，所述电源盒模块包括电源盒本体和设置于所述电源盒本体内的、供所述发光单元的灯头插入的插座；
    所述的防倒装结构包括设置于所述发光单元灯头与所述插座相对的面的凸部，以及设置于所述插座上的，与所述凸部对应的凹部或开孔。
  7. 根据权利要求1所述的换气扇的照明装置，其特征在于：所述发 光单元，由灯头、灯管和排列于所述灯管的一个面上的发光晶片组成，所述电源盒模块包括电源盒本体和设置于所述电源盒本体内的、供所述发光单元的灯头插入的插座；
    所述的防倒装结构包括设置于所述发光单元灯头与所述插座相对的面的凹部或开孔，以及设置于所述插座上的、卡入所述凹部或开孔的凸部。
  8. 根据权利要求2～5中任一权利要求所述的换气扇的照明装置，其特征在于：所述突缘形成间断的形状。
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