WO2019242745A1 - 配光元件、光源模组、草坪灯灯头及草坪灯 - Google Patents

配光元件、光源模组、草坪灯灯头及草坪灯 Download PDF

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Publication number
WO2019242745A1
WO2019242745A1 PCT/CN2019/092319 CN2019092319W WO2019242745A1 WO 2019242745 A1 WO2019242745 A1 WO 2019242745A1 CN 2019092319 W CN2019092319 W CN 2019092319W WO 2019242745 A1 WO2019242745 A1 WO 2019242745A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
polarizing lens
source module
cable
Prior art date
Application number
PCT/CN2019/092319
Other languages
English (en)
French (fr)
Inventor
卜晨曦
李锋
陈又丰
冯学军
王洪波
Original Assignee
欧普照明股份有限公司
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
Priority claimed from CN201820968626.5U external-priority patent/CN208222267U/zh
Priority claimed from CN201810651431.2A external-priority patent/CN108591896B/zh
Application filed by 欧普照明股份有限公司 filed Critical 欧普照明股份有限公司
Publication of WO2019242745A1 publication Critical patent/WO2019242745A1/zh
Priority to US17/126,450 priority Critical patent/US11454371B2/en

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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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/081—Lighting devices intended for fixed installation with a standard of low-built type, e.g. landscape light
    • 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
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/109—Outdoor lighting of gardens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular

Definitions

  • the present application relates to the field of lighting technology, and in particular, to a light distribution element, a light source module, a lawn lamp base and a lawn lamp.
  • Lawn lights on the market are generally divided into two light emitting modes, one of which is a direct light emitting mode.
  • the light source module emits light from the top of the lawn light to a direction substantially perpendicular to the bottom surface, and the light is concentrated around the lawn light.
  • the other is a 360-degree light emission mode, where the light spreads around the lawn with the lawn light as the center.
  • a direct-light source module is usually used, that is, the light source module is arranged on the top of the lawn lamp, and the substrate is flat. All light-emitting units are arranged on the side of the substrate facing the ground. The light emitted by the light emitting unit is substantially perpendicular to the bottom surface.
  • a rod-shaped light source module is generally used, that is, the light source module is arranged into a rod-like structure, the axis of the rod-shaped structure is perpendicular to the bottom surface, and the light-emitting units are arranged around the rod-shaped axis along the circumferential direction to achieve 360-degree Even light emission within the range.
  • the embodiments of the present application provide a light distribution element, a light source module, a lawn lamp base and a lawn lamp to solve the above problems.
  • an embodiment of the present application provides a light distribution element including an inner ring polarizing lens and an outer ring polarizing lens; the inner ring polarizing lens and the outer ring polarizing lens having a common axis and the outer ring A polarizing lens surrounds the inner ring polarizing lens; the inner ring polarizing lens is configured to deflect light from a light emitting unit toward a direction near the axis, and a center line of an illumination range of the inner ring polarizing lens is in line with the axis.
  • a first included angle wherein the first included angle is an acute angle;
  • the outer ring polarizing lens is configured to deflect the light from the light emitting unit away from the axis center, and is within a range of illumination of the outer ring polarizing lens;
  • the center line forms a second angle with the axis, and the second angle is an acute angle.
  • the first included angle is 10-15 °, and / or the second included angle is 10-15 °.
  • the light distribution element described above further includes a mounting portion that surrounds the outer ring polarizing lens; the mounting portion is a threaded hole.
  • the above-mentioned light distribution element further includes a first receiving portion, and the inner ring polarizing lens surrounds the first receiving portion; the first receiving portion is provided with a cable port; and the wire The axis of the cable opening is parallel to the axis.
  • an embodiment of the present application provides a light source module including a substrate, a light emitting unit, and the light distribution element; the substrate has a first surface and a second surface facing away from each other, and the light emitting unit has a ring shape.
  • the light distribution element covers the first surface and the inner ring polarizing lens and / or the outer ring polarizing lens distributes light to the light emitting unit.
  • the light emitting units are all distributed by the inner ring polarizing lens; or the light emitting units are all distributed by the outer ring polarizing lens; Part of the light is distributed by the inner ring polarizing lens, and part of the light-emitting unit is distributed by the outer ring polarizing lens.
  • the above-mentioned light source module further includes a bottom cover and a cable; the bottom cover and the light distribution element jointly surround an assembly cavity, and the substrate and the light emitting unit are both disposed in the assembly.
  • the assembly cavity is provided with a cable port communicating with the outside, and the cable extends into the assembly cavity from the cable port and is electrically connected to the substrate.
  • the light source module further includes a power supply driving module, which is disposed in the assembly cavity and is electrically connected to the substrate.
  • the light distribution element when the light distribution element further includes a first accommodating portion, and the inner ring polarizing lens surrounds the first accommodating portion, the first accommodating portion is the A part of the assembling cavity, the power driving module is disposed on the first surface and located in the first receiving portion.
  • the bottom cover further includes a second receiving portion, the second receiving portion is a part of the assembly cavity, and the power driving module is disposed on the second surface. And located in the second receiving portion.
  • the light source module further includes a waterproof member that seals a gap between the cable and the cable port.
  • the waterproof member includes a screw-fitted waterproof joint and a waterproof joint nut.
  • the cable opening is opened on the bottom cover; a middle portion of the bottom cover has a connection portion protruding toward a direction away from the assembling cavity, and the wire A cable opening is opened on the connection portion, and an axis of the cable opening is perpendicular to the axis; the waterproof member is a waterproof sealant.
  • the light source module described above further includes a sealing ring that seals the connection between the bottom cover and the light distribution element.
  • an embodiment of the present application provides a lawn light lamp head, which includes a top cover, a base, and the light source module; the top cover and the base are oppositely disposed, and an area surrounded by the two is a light source cavity.
  • the light source module is disposed at an end of the light source cavity near the top cover, and the first surface faces the base.
  • the above-mentioned lawn lamp base further includes a cylindrical lampshade, and two ends of the cylindrical lampshade are respectively connected to the top cover and the base; the material of the cylindrical lampshade is transparent;
  • the lawn lamp head further includes a decorative column, which is disposed in the light source cavity and between the light distribution element and the base; the decorative column is a reflector, and the reflector The dimension in the radial direction of the shaft center is tapered from an end near the base to an end near the light distribution element; the reflector has a horn shape; when the light distribution element further includes a first receiving portion, the An inner ring polarizing lens surrounds the first accommodating portion, and the cable port is opened on the first accommodating portion. When an axis of the cable port is parallel to the axis, a middle portion of the decorative column is provided.
  • a first cable passing channel extending along the axial center direction, and the cable passes through the first cable passing channel.
  • the cylindrical lamp cover is a diffuser cover.
  • the lawn light lamp head when the cable opening is opened on the bottom cover, the lawn light lamp head further includes a support, and two ends of the support are respectively connected to the top A cover and the base, a second wire passing channel extending along the axis direction is provided inside the support, and one end of the second wire passing channel extends to the top cover and communicates with the light source cavity , The other end of the second cable passing channel extends to the base, and the cable passes through the second cable passing channel.
  • an embodiment of the present application provides a lawn lamp, which includes a lamp body and the lawn lamp base, and the lamp body is detachably connected to the lamp holder.
  • the top end of the lamp body has a socket hole, and an end of the base facing away from the top cover is an insertion end, and the insertion end can be inserted into the socket hole.
  • a stopper is provided on the peripheral surface of the base, and when the insertion end is inserted into the sleeve hole, an edge of the sleeve hole abuts against the stopper.
  • FIG. 1 is an exploded view of a lawn lamp having a cylindrical mask disclosed in an embodiment of the present application
  • FIG. 2 is an exploded view of the lawn lamp base of FIG. 1;
  • FIG. 3 is an exploded view of the light source module in FIG. 2;
  • FIG. 4 is a cross-sectional view of the light source module in FIG. 3;
  • FIG. 5 is a sectional perspective view of a light distribution element disclosed in an embodiment of the present application.
  • FIG. 6 is a light distribution view of a light source module disclosed in an embodiment of the present application.
  • FIG. 7 is a light path propagation diagram of an inner ring polarizing lens of a light source module disclosed in an embodiment of the present application.
  • FIG. 8 is a light path propagation diagram of an inner ring polarizing lens and an outer ring polarizing lens of a light source module disclosed in an embodiment of the present application;
  • FIG. 9 is a cross-sectional view of the lawn lamp base of FIG. 1;
  • FIG. 10 is an overall view of a lawn lamp with a support member disclosed in an embodiment of the present application.
  • FIG. 11 is an exploded view of a light source module of the lawn lamp in FIG. 10;
  • FIG. 12 is a cross-sectional view of the light source module shown in FIG. 11;
  • FIG. 13 is a cross-sectional view of the lawn light shown in FIG. 10.
  • 1- Lawn lamp head 10- light source module, 100- substrate, 100a- first surface, 100b- second surface, 101- light emitting unit, 102- light distribution element, 102a- inner ring polarizing lens, 102b- outer ring Polarizing lens, 102c-first receiving section, 102d-mounting section, 103-bottom cover, 103a-wiring section, 104-cable, 105-sealing ring, 106-waterproof member, 106a-waterproof connector, 106b-waterproof connector nut , 107-assembly cavity, 107a-cable port, 108-power drive module, 11-top cover, 12-base, 120-insertion end, 122-stopper; 13-light source cavity, 14-cylinder lamp cover, 15 -Decorative column / reflector, 150-first cable passage, 16-support, 160-second cable passage;
  • the embodiment of the present application discloses a lawn lamp, as shown in FIGS. 1 to 13, including a lawn lamp head 1 and a lamp body 2, wherein the lawn lamp head 1 is a light emitting part of the lawn lamp, and includes a light source module 10, A plurality of components including the top cover 11 and the base 12, and the lamp body 2 is a main body supporting structure, which is mainly used for holding the lawn lamp base 1 to a certain height and fixing it.
  • the lawn lamp head 1 and the lamp body 2 are fixed in a detachable connection manner, which is easy to replace.
  • a socket hole 20 may be formed at the top of the lamp body 2.
  • the end of the base 12 facing away from the top cover 11 is an insertion end 120.
  • the insertion end 120 can be inserted into the socket hole 20, and at the same time, a peripheral surface of the base 12 can be provided.
  • the ring-shaped or other form of the stopper 122 when the insertion end 120 is inserted into the socket hole 20, the edge of the socket hole 20 abuts against the stopper 122 to support the base 12.
  • the light source module 10 in this embodiment includes a substrate 100, a light emitting unit 101, and a light distribution element 102.
  • the substrate 100 is generally a PCB having a first surface 100a and a second surface facing away from each other.
  • the light emitting units 101 are arranged in a ring shape on the first surface 100a, and the light emitted by the light emitting unit 101 itself will propagate outward from the first surface 100a in a hemispherical shape.
  • This light propagation method cannot meet the lighting requirements of the lawn lamp, so the light emitted by the light emitting unit 101 needs to be light-distributed through the light-distribution element 102.
  • the light distribution element 102 covers the first surface 100a.
  • the light distribution element 102 has an overall transparent configuration.
  • the light distribution element 102 includes an inner ring polarizing lens 102a and an outer ring polarizing lens 102b, an inner ring polarizing lens 102a, and an outer ring polarizing light.
  • the lens 102b is disposed coaxially, that is, the common axis a of the inner ring polarizing lens 102a and the outer ring polarizing lens 102b, and the two constitute a concentric ring structure.
  • the outer ring polarizing lens 102b surrounds the inner ring polarizing lens 102a.
  • the inner ring polarizing lens 102 a and the outer ring polarizing lens 102 b are both polarizing lenses, that is, they can deflect the hemispherical light emitted by the light emitting unit 101 to propagate in a direction or an angular range.
  • the inner ring polarizing lens 102a is used to deflect light from the light emitting unit 101 toward the axis a.
  • the light emitted by a single light emitting unit 101 is deflected by the inner ring polarizing lens 102a and has a certain range of angles. It can be understood as an illumination range.
  • the illumination range has a center line b1, and the center line b1 and the axis a have a first angle ⁇ , and the first angle ⁇ is an acute angle.
  • the outer ring polarizing lens 102b is used to deflect the light from the light emitting unit 101 away from the axis a. Similarly, the light emitted by a single light emitting unit 101 after being deflected by the outer ring polarizing lens 102b also has a certain degree of deflection. Illumination range. There is a midline b2 in the illumination range. The midline b2 is at a second angle ⁇ with the axis a, and the second angle ⁇ is also an acute angle.
  • the top cover 11 and the base 12 are disposed opposite to each other.
  • the area enclosed by the top cover 11 and the base 12 is a light source cavity 13.
  • the light source module 10 is disposed at an end of the light source cavity 13 near the top cover 11.
  • the surface 100 a faces the base 12.
  • the top cover 11 itself can have a certain accommodating area, and the light source module 10 can be located in the accommodating area, so that the light source module 10 can not be exposed from the area between the top cover 11 and the base 12.
  • the lawn lamp base 1 After the lawn lamp base 1 is assembled, it can be fixedly connected to the lamp body 2 through the base 12, so that the lawn lamp base 1 is at a suitable height.
  • the lawn lamp base 1 further includes a cylindrical lamp cover 14, and two ends of the cylindrical lamp cover 14 are respectively connected to the top cover 11 and the base 12.
  • the light after the light emitting unit 101 is distributed by the inner ring polarizing lens 102a, the light will be deflected toward the axis a, and the strongest part of the light intensity will be concentrated near the first deflected light b1.
  • the deflected light of the inner ring polarizing lens 102a will mainly illuminate the end of the light source cavity 13 near the end of the base 12 at a first angle ⁇ and an approximate angle with the axis a. These light will be mainly near the base 12 by the cylindrical lamp cover 14 Shot from the area.
  • the light-emitting unit 101 Since the light-emitting unit 101 is the farthest from the end of the cylindrical lamp cover 14 near the base 12, the light is lost in the propagation process, and the closer the area of the cylindrical lamp cover 14 to the top cover 11 is, the closer the light-emitting unit 101 is, the The smaller the loss is.
  • the light intensity that is projected to the farthest distance from the light emitting unit 101 through the inner ring polarizing lens 102a is the largest, and the light intensity gradually decreases as the distance approaches. Therefore, the inner ring polarizing lens 102a can emit light.
  • the light emitted by the unit 101 is evenly diffused onto the cylindrical lampshade 14 to realize a 360-degree uniform light emitting mode.
  • the first included angle ⁇ is preferably 10-15 °, so that the main light can be directly irradiated to the area of the cylindrical lampshade 14 adjacent to the base 12 after crossing inside the light source cavity 13, and the uniformity of light is better. good.
  • the light emitting unit 101 is distributed by the outer ring polarizing lens 102b, the light will be deflected away from the axis a. The strongest part of the light intensity will be concentrated near the second deflected light b2.
  • the light deflected by the ring-polarizing lens 102b is mainly irradiated to the cylindrical lamp cover 14 at a second angle ⁇ and an approximate angle with the axis a, and the cylindrical lamp cover 14 passes through and illuminates the ground around the lawn lamp.
  • the second included angle ⁇ can be adjusted, thereby adjusting the range illuminated to the lawn light.
  • the second included angle ⁇ is preferably 10-15 °, so that the light will be concentrated in a small area around the lawn lamp, and the effect is basically the same as that of the ordinary direct-type irradiation mode.
  • the light source module 10 in this embodiment can satisfy a 360-degree uniform irradiation mode, and at the same time, can satisfy a direct-type irradiation mode. Only one kind of light source module 10 needs to be produced at the time of production, and it can be used for two kinds of lawn lights at the same time, which greatly saves the input cost of the production line.
  • the 360-degree uniform light emission mode is mainly achieved by the inner ring polarizing lens 102a. Therefore, in the 360-degree uniform light emission mode, the outer ring polarizing lens 102b can be in an inoperative state, that is, the outer ring polarizing lens
  • the light emitting unit 101 to which the light is distributed in 102b may be in an off state. Even if some lawn lights only need to have a 360-degree uniform light emission mode and do not need a direct light emission mode, the light emitting unit 101 that cooperates with the outer ring polarizing lens 102b can be installed at the factory, but only be polarized by the inner ring.
  • the lens 102a distributes light to the light emitting unit 101 to save costs.
  • the cylindrical lampshade 14 may be a diffusion cover at this time.
  • the direct-lighting mode of the light source module 10 in this embodiment is mainly realized by the outer ring polarizing lens 102b. Therefore, in the direct-lighting mode, the inner ring polarizing lens 102a can be in an inoperative state, that is, the inner ring The light emitting unit 101 to which the ring light distribution lens 102 a distributes light may be in an off state.
  • the light-emitting unit 101 that cooperates with the inner ring polarizing lens 102a can be installed at the factory, but only be polarized by the outer ring The lens 102b distributes light to the light emitting unit 101 to save costs. At this time, all the light emitting units 101 in the light source module 10 are all distributed by the outer ring polarizing lens 102b. Further, since the direct-lighting mode needs to illuminate the ground, there is a high requirement for light intensity. At this time, if the diffuser cover is used for the cylindrical lamp cover 14, the light intensity will be greatly weakened. Therefore, it is recommended to use the cylindrical lamp cover 14 of transparent material.
  • the inner ring polarizing lens 102a and the outer ring polarizing lens 102b can also function at the same time, that is, a part of the light emitting unit 101 is distributed by the inner ring polarizing lens 102a, and another part of the light emitting unit 101 is provided by the outer ring polarizing lens.
  • 102b Light distribution.
  • the lawn light presents a direct lighting mode and a 360-degree uniform lighting mode at the same time.
  • the 360-degree uniform light emitting mode is more for people to appreciate, so the light emitting unit 101 that is distributed by the inner ring polarizing lens 102a can emit colored light to improve aesthetics.
  • the lawn light of the direct lighting mode the light of a single color is mainly projected to the ground, so the appearance of this lawn light is poor. Because of the structural characteristics of the light source module 10 in this embodiment, the aesthetics of the lawn lamp in the direct-lighting mode can be improved.
  • a decorative column 15 may be provided in the light source cavity 13.
  • the decorative column 15 is located between the light distribution element 102 and the base 12.
  • the decorative column 15 may have some beautiful structures.
  • the colored light emitted by the inner ring polarizing lens 102a can illuminate the decorative column 15.
  • the decoration column 15 may be a reflector as a whole.
  • the size of the reflector 15 (for convenience of description, the decoration column is used below) in the radial direction of the axis a from the end near the base 12 to the light distribution element 102 Tapered end.
  • the reflector 15 can mix light emitted from the inner ring polarizing lens 102 a by its own configuration, so that colored light appears on the surface of the reflector 15.
  • the surface of the reflector 15 is preferably a diffuse reflection surface to improve the light mixing effect.
  • the reflector 15 may have a horn shape, which is closer to nature and more harmonious with the environment.
  • the light source module 10 in this embodiment further includes a bottom cover 103 and a cable 104.
  • the bottom cover 103 and the light distribution element 102 together form an assembly cavity 107.
  • the light distribution element 102 and the bottom cover 103 can be connected by bonding or other methods.
  • a more preferred solution is to provide a mounting portion 102d on the light distribution element 102.
  • the mounting portion 102d is provided around the outer ring polarizing lens 102b, and the mounting portion 102d It may be a threaded hole, which is screwed with the threaded hole after passing through the bottom cover 103 through a screw, thereby completing the fixed connection between the light distribution element 102 and the bottom cover 103.
  • the substrate 100 and the light-emitting unit 101 are both disposed in the mounting cavity 107.
  • the light source module 10 may further include a power driving module 108 electrically connected to the substrate 100.
  • the power driving module 108 is also disposed in the mounting cavity 107 together.
  • the power driving module 108 may be disposed on the first surface 100a or may be disposed on the second surface 100b.
  • the light distribution element 102 in this embodiment may be provided with a first receiving portion 102c, and the inner ring polarizing lens 102a surrounds the first receiving portion 102c.
  • the first receiving portion 102c is a part of the mounting cavity 107, and the power driving module 108 is located in the first receiving portion 102c.
  • a second accommodating portion (not shown in the figure) may be provided on the bottom cover 103 in this embodiment for The power supply driving module 108 is accommodated, and details are not described herein again.
  • the assembling cavity 107 is provided with a cable opening 107a communicating with the outside, and the cable 104 extends into the assembling cavity 107 from the cable opening 107a and is electrically connected to the substrate 100 and the power driving module 108.
  • the main electrical component inside the lawn light is the light source module 10, and other components such as the top cover 11, the base 12, and the cylindrical lamp cover 14 and the empty space inside the light source cavity 13 do not need to be waterproof.
  • the cost is reduced, and the waterproof structure design of the light source module 10 is directly performed.
  • the light source module 10 further includes a sealing ring 105 and a waterproof member 106.
  • the electrical components such as the substrate 100, the light emitting unit 101, the end of the cable 104, and the power driving module 108 are the core of waterproofing, and these structures or components are located in the assembly cavity 107.
  • the waterproofness of the mounting cavity 107 can ensure the normal use of the light source module 10.
  • the connection between the bottom cover 103 and the light distribution element 102 is sealed by a sealing ring 105.
  • the edges of the bottom cover 103 and the light distribution element 102 may show various shapes.
  • the sealing ring 105 is required to The connection points with the bottom cover 103 and the light distribution element 102 follow the shape.
  • the material of the sealing ring 105 may be a commonly used rubber or other similar materials.
  • the gap between the cable 104 and the cable port 107a is sealed by the waterproof member 106.
  • the cable opening 107a may be opened at different positions.
  • the cable opening 107a may be opened on the first receiving portion 102c (see FIGS. 3 and 4), and the axis of the cable opening 107a is parallel to or even coaxial with the axis a.
  • the cable 104 extends from the ground to the inside of the lamp body 2, and passes through the base 12, the light source cavity 13, and the cable opening 107 a in order to enter the assembly cavity 107 to connect the substrate 100 and the power driving module 108.
  • a first wire passing channel 150 extending in the direction of the axis a may be provided in the middle of the decorative column 15, and the cable 104 may be hidden after passing through the cable port 107a.
  • the base 12 is reached through the first wire passage 150. Because the available space in the middle of the light distribution element 102 is large, the waterproof member 106 can use a waterproof joint 106a and a waterproof joint nut 106b, which are better in waterproof effect.
  • the waterproof joint 106a is sleeved on the periphery of the cable 104 and extends through the cable hole 107a Into the assembly cavity 107, the waterproof joint nut 106b is threadedly connected to the waterproof joint 106a in the assembly cavity 107.
  • the waterproof joint 106a and the waterproof joint nut 106b are standard parts, and the assembly process is convenient.
  • the cable opening 107 a is opened on the bottom cover 103.
  • a light source module 10 can be applied to a lawn lamp having a support 16. Specifically, as shown in FIGS. 10 to 13, two ends of the supporting member 16 are respectively connected to the top cover 11 and the base 12. At the same time, the supporting member 16 is provided with a second wire passage 160 extending along the axis a direction. One end of the wire passing channel 160 extends to the top cover 11 and communicates with the light source cavity 13, and the other end of the second wire passing channel 160 extends to the base 12.
  • the cable 104 can enter the assembly cavity 107 through the base 12 through the second wire passage 160 and the cable opening 107a on the bottom cover 103 in this order. In this way, the cable can be hidden by the support 16.
  • the support member 16 is set at the edge of the light source cavity 13 and the cable 104 needs to extend to the middle of the light source module 10. If the cable port 107a also extends in the direction of the axis a, the cable 104 needs to be bent 180 ° can enter the cable port 107a, and the cable 104 occupies a large amount of space between the cable port 107a and the second cable passing channel 160.
  • a connection portion 103a protruding in a direction away from the mounting cavity 107 may be provided in the middle of the bottom cover 103, and the cable opening 107a is provided on the connection portion 103a.
  • the axis of the cable port 107a is set to be perpendicular to the axis a, so that the cable 104 can enter the cable port 107a along the radial direction of the axis a, thereby reducing the space occupied by the cable 104.
  • the cable port 107a can still be sealed with the waterproof joint 106a and the waterproof joint nut 106b at this time, since it is a standard part and its own size is large, the size of the wiring portion 103a will be increased, occupying more space. Therefore, it is not recommended to use such a sealing structure when the cable opening 107a is provided on the wiring portion 103a.
  • a non-conventional method such as a waterproof sealant can be directly used to seal the cable port 107a. This sealing method can not be affected by the size of the cable port 107a and saves space.
  • the light source module 10 can leave a weak area in the middle of the light distribution element 102 and the wiring portion 103a at the same time without leaving the cable port 107a. During the assembly of the lawn light, it can be selected according to the actual structure of the lawn light. Which of the weak areas is punched out to form the cable opening 107a, which can further improve the applicability of the light source module 10.
  • the light distribution element, light source module, lawn lamp head, and lawn lamp disclosed in the embodiments of the present application can use the same light source module to simultaneously meet the lighting requirements of two types of lawn lights: direct light and 360-degree uniform light. Production line investment, saving production costs.

Abstract

一种配光元件（102）、光源模组（10）、草坪灯灯头（1）及草坪灯。配光元件（102）包括内环偏光透镜（102a）以及外环偏光透镜（102b）；内环偏光透镜的光照范围的中线（b1）与轴心（a）呈第一夹角；外环偏光透镜的光照范围的中线（b2）与轴心呈第二夹角。光源模组包括基板（100）、发光单元（101）以及配光元件；发光单元呈环形排布在第一表面（100a）上；配光元件覆盖第一表面且内环偏光透镜和/或外环偏光透镜为发光单元配光。草坪灯灯头包括顶盖（11）、底座（12）以及光源模组；顶盖与底座围成光源腔（13），光源模组设置在光源腔。草坪灯包括灯身（2）以及坪灯灯头，灯身与底座可拆卸连接。

Description

配光元件、光源模组、草坪灯灯头及草坪灯 技术领域
本申请涉及照明技术领域，尤其涉及一种配光元件、光源模组、草坪灯灯头及草坪灯。
背景技术
现在市场上的草坪灯一般分为两种发光模式，其中一种是直下式发光模式，通常光源模组由草坪灯的顶部向基本垂直于底面的方向发射光源，光线集中在草坪灯的周围。另一种是360度发光模式，光线以草坪灯为中心向周围360度扩散。
对于直下式发光模式，通常采用直下式光源模组，即将光源模组设置在草坪灯的顶部，采用的基板呈平板状，所有发光单元均设置在基板朝向地面的一侧，光源模组中所有的发光单元所发出的光线均基本垂直于底面。而对于360度均匀发光模式，通常采用棒形光源模组，即光源模组整理呈棒状结构，棒状结构的轴线垂直于底面，发光单元围绕棒状的轴线沿着周向排布，以实现360度范围内均匀发光。
由此可见，相关技术中的两种草坪灯内部的光源模组结构完全不同，无法通用。厂家只能同时生产两种光源模组，生产成本很高。
发明内容
本申请实施例提供一种配光元件、光源模组、草坪灯灯头及草坪灯，以解决上述问题。
本申请实施例采用下述技术方案：
第一方面，本申请实施例提供了一种配光元件，包括内环偏光透镜以及外环偏光透镜；所述内环偏光透镜以及所述外环偏光透镜拥有共同的轴心且所述外环偏光透镜环绕所述内环偏光透镜；所述内环偏光透镜用于将发光单 元的光线向靠近所述轴心的方向偏转，所述内环偏光透镜的光照范围的中线与所述轴心呈第一夹角，所述第一夹角为锐角；所述外环偏光透镜用于将所述发光单元的光线向远离所述轴心的方向偏转，处于所述外环偏光透镜的光照范围的中线与所述轴心呈第二夹角，所述第二夹角为锐角。
在一实施方式中，上述的配光元件中，所述第一夹角为10-15°，和/或所述第二夹角为10-15°。
在一实施方式中，上述的配光元件中，还包括安装部，所述安装部围绕所述外环偏光透镜；所述安装部为螺纹孔。
在一实施方式中，上述的配光元件中，还包括第一收容部，所述内环偏光透镜围绕所述第一收容部；所述第一收容部上设置有线缆口；所述线缆口的轴线与所述轴心平行。
第二方面，本申请实施例提供了一种光源模组，包括基板、发光单元以及所述的配光元件；所述基板具有相互背离的第一表面以及第二表面，所述发光单元呈环形排布在所述第一表面上；所述配光元件覆盖所述第一表面且所述内环偏光透镜和/或所述外环偏光透镜为所述发光单元配光。
在一实施方式中，上述的光源模组中，所述发光单元全部被所述内环偏光透镜配光；或所述发光单元全部被所述外环偏光透镜配光；或所述发光单元的一部分被所述内环偏光透镜配光，所述发光单元的另一部分被所述外环偏光透镜配光。
在一实施方式中，上述的光源模组中，还包括底盖以及线缆；所述底盖与所述配光元件共同围成装配腔所述基板以及所述发光单元均设置于所述装配腔内；所述装配腔开设有与外界连通的线缆口，所述线缆由所述线缆口伸入所述装配腔并与所述基板电连接。
在一实施方式中，上述的光源模组中，还包括电源驱动模块，所述电源驱动模块设置在所述装配腔内且与所述基板电连接。
在一实施方式中，上述的光源模组中，当所述配光元件还包括第一收容 部，所述内环偏光透镜围绕所述第一收容部时，所述第一收容部为所述装配腔的一部分，所述电源驱动模块设置在所述第一表面且位于所述第一收容部内。
在一实施方式中，上述的光源模组中，所述底盖还包括第二收容部，所述第二收容部为所述装配腔的一部分，所述电源驱动模块设置在所述第二表面且位于所述第二收容部内。
在一实施方式中，上述的光源模组中，还包括防水件，所述防水件密封所述线缆与所述线缆口之间的间隙。
在一实施方式中，上述的光源模组中，当所述配光元件还包括第一收容部，所述内环偏光透镜围绕所述第一收容部时，所述线缆口开设在所述第一收容部上，所述线缆口的轴线与所述轴心平行；所述防水件包括螺纹配合的防水接头以及防水接头螺母。
在一实施方式中，上述的光源模组中，所述线缆口开设在所述底盖上；所述底盖的中部具有朝向远离所述装配腔的方向凸出的接线部，所述线缆口开设在所述接线部上，且所述线缆口的轴线与所述轴心相垂直；所述防水件为防水密封胶。
在一实施方式中，上述的光源模组中，还包括密封圈，所述密封圈密封所述底盖与所述配光元件的连接处。
第三方面，本申请实施例提供了一种草坪灯灯头，包括顶盖、底座以及所述的光源模组；所述顶盖与所述底座相对设置，二者围成的区域为光源腔，所述光源模组设置在所述光源腔靠近所述顶盖的一端，所述第一表面朝向所述底座。
在一实施方式中，上述的草坪灯灯头中，还包括筒形灯罩，所述筒形灯罩的两端分别连接所述顶盖与所述底座；所述筒形灯罩的材质为透明材质；上述的草坪灯灯头中，还包括装饰柱，所述装饰柱设置在所述光源腔内且位于所述配光元件与所述底座之间；所述装饰柱为反射器，所述反射器在所述 轴心的径向上的尺寸由靠近所述底座的一端至靠近所述配光元件的一端渐缩；所述反射器呈喇叭形；当所述配光元件还包括第一收容部，所述内环偏光透镜围绕所述第一收容部，所述线缆口开设在所述第一收容部上，所述线缆口的轴线与所述轴心平行时，所述装饰柱的中部设置有沿所述轴心方向延伸的第一过线通道，所述线缆穿过所述第一过线通道。
在一实施方式中，上述的草坪灯灯头中，所述筒形灯罩为扩散罩。
在一实施方式中，上述的草坪灯灯头中，当所述线缆口开设在所述底盖上时，所述草坪灯灯头还包括支撑件，所述支撑件的两端分别连接所述顶盖以及所述底座，所述支撑件的内部设置有沿所述轴心方向延伸的第二过线通道，所述第二过线通道的其中一端延伸至所述顶盖并连通所述光源腔，所述第二过线通道的另一端延伸至所述底座，所述线缆穿过所述第二过线通道。
第四方面，本申请实施例提供了一种草坪灯，包括灯身以及所述的草坪灯灯头，所述灯身与所述灯座可拆卸连接。
在一实施方式中，前述的草坪灯中，所述灯身的顶端具有套接孔，所述底座背离所述顶盖的一端为插入端，所述插入端能够插入所述套接孔内，所述底座的周面上设置有止挡件，当所述插入端插入所述套接孔时所述套接孔的边缘与所述止挡件抵接。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为本申请实施例公开的具有筒形面罩的草坪灯的爆炸视图；
图2为图1中草坪灯灯头的爆炸式图；
图3为图2中光源模组的爆炸式图；
图4为图3中光源模组的剖视图；
图5为本申请实施例公开的配光元件的断面立体视图；
图6为本申请实施例公开的光源模组的配光视图；
图7为本申请实施例公开的光源模组的内环偏光透镜的光路传播图；
图8为本申请实施例公开的光源模组的内环偏光透镜与外环偏光透镜的光路传播图；
图9为图1中草坪灯灯头的剖视图；
图10本申请实施例公开的具有支撑件的草坪灯的整体视图；
图11为图10中草坪灯的光源模组的爆炸式图；
图12为图11所示光源模组的剖视图；
图13为图10所示草坪灯的剖视图。
附图标记说明：
1-草坪灯灯头、10-光源模组、100-基板、100a-第一表面、100b-第二表面、101-发光单元、102-配光元件、102a-内环偏光透镜、102b-外环偏光透镜、102c-第一收容部、102d-安装部、103-底盖、103a-接线部、104-线缆、105-密封圈、106-防水件、106a-防水接头、106b-防水接头螺母、107-装配腔、107a-线缆口、108-电源驱动模块、11-顶盖、12-底座、120-插入端、122-止挡件；13-光源腔、14-筒形灯罩、15-装饰柱/反射器、150-第一过线通道、16-支撑件、160-第二过线通道；
2-灯身、20-套接孔；
a-轴心、b1-中线、b2-中线。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有 其他实施例，都属于本申请保护的范围。
以下结合附图，详细说明本申请各实施例提供的技术方案。
本申请实施例公开了一种草坪灯，如图1至13所示，包括草坪灯灯头1以及灯身2，其中，草坪灯灯头1是草坪灯的发光部分，集中了包含光源模组10、顶盖11以及底座12在内的多个部件，而灯身2是主体支撑结构，主要用于将草坪灯灯头1托举至一定高度并对其进行固定。草坪灯灯头1与灯身2之间采用可拆卸连接的方式进行固定，便于更换。例如，可以在灯身2的顶端形成一个套接孔20，底座12背离顶盖11的一端为插入端120，插入端120能够插入套接孔20内，同时在底座12的周面上可以设置环形或其它形式的止挡件122，当插入端120插入套接孔20时套接孔20的边缘与止挡件122抵接，以实现对底座12的支撑。
具体地，参见图3至图6，本实施例中的光源模组10包括基板100、发光单元101以及配光元件102，基板100通常为PCB，其具有相互背离的第一表面100a以及第二表面100b，发光单元101呈环形排布在第一表面100a上，发光单元101自身所发出的光线会呈半球形由第一表面100a向外传播。这种光线传播方式不能满足草坪灯的照明需求，因此需要通过配光元件102对发光单元101所发出的光线进行配光。
具体地，配光元件102覆盖第一表面100a，配光元件102为整体透明构型，配光元件102内包括内环偏光透镜102a以及外环偏光透镜102b，内环偏光透镜102a以及外环偏光透镜102b共轴设置，即内环偏光透镜102a与外环偏光透镜102b的共同的轴心a，二者构成同心环结构，其中，外环偏光透镜102b环绕内环偏光透镜102a。
参见图5至图8，内环偏光透镜102a与外环偏光透镜102b均为偏光透镜，也就是能够将发光单元101所发出的半球形光线偏转为大致朝向一个方向或者角度范围传播。内环偏光透镜102a用于将发光单元101的光线向靠近轴心a的方向偏转，其中单个发光单元101所发出的光线经过内环偏光透镜 102a偏转后所形成的偏转光线具有一定的角度范围，可理解为光照范围，该光照范围存在中线b1，该中线b1与轴心a呈第一夹角α，第一夹角α为锐角。
外环偏光透镜102b用于将发光单元101的光线向远离轴心a的方向偏转，同样的，单个发光单元101所发出的光线经过外环偏光透镜102b偏转后所形成的偏转光线也具有一定的光照范围，该光照范围存在中线b2，中线b2与轴心a呈第二夹角β，第二夹角β也为锐角。
在草坪灯灯头1中，顶盖11与底座12相对设置，二者围成的区域为光源腔13，其中光源模组10设置在光源腔13靠近顶盖11的一端，设置时要保证第一表面100a朝向底座12。顶盖11自身可以有一定的容纳区域，光源模组10可以处于该容纳区域内，从而可以使光源模组10不由顶盖11与底座12之间的区域露出。草坪灯灯头1装配完成后可以通过底座12与灯身2固定连接在一起，使草坪灯灯头1处于合适的高度。通常情况下，草坪灯灯头1中还会包括筒形灯罩14，筒形灯罩14的两端分别连接顶盖11与底座12。
参见图6和图7，发光单元101被内环偏光透镜102a配光后，光线会向靠近轴心a的方向偏转，其中光照强度最强的部分会集中在第一偏转光线b1附近，因此被内环偏光透镜102a偏转后的光线会主要以与轴心a呈第一夹角α及近似角度照射向光源腔13的内部临近底座12的一端，这些光线会主要由筒形灯罩14临近底座12的区域射出。与此同时，由于内环偏光透镜102a对光线的偏转会呈现出锥形扩散状，因此还会使发光单元101的一些光线照射到光源腔13的中部，这部分光线主要由筒形灯罩14的中部区域射出。此外，还会有少部分光线照射到光源腔13临近顶盖11的一端，这部分光线主要由筒形灯罩14的临近顶盖11的区域射出。
由于发光单元101距筒形灯罩14临近底座12的一端距离最远，因此光线在传播过程中的损耗最大，而筒形灯罩14越靠近顶盖11的区域距离发光单元101就越近，光线的损耗也就越小。而本实施例中通过内环偏光透镜102a向距离发光单元101最远处投放的光强最大，而随着距离的接近光照强度也 逐渐减小，由此，内环偏光透镜102a便可将发光单元101所发出的光线均匀的扩散至筒形灯罩14上，实现360度均匀发光模式。
对于常用的筒形灯罩14的尺寸，第一夹角α优选为10-15°，这样主要光线能够在光源腔13内部交叉之后直接照射向筒形灯罩14临近底座12的区域，光线均匀效果较佳。
请继续参见图6，发光单元101被外环偏光透镜102b配光后，光线会向远离轴心a的方向偏转，其中光照强度最强的部分会集中在第二偏转光线b2附近，因此被外环偏光透镜102b偏转后的光线会主要以与轴心a呈第二夹角β及近似的角度照射向筒形灯罩14，并由筒形灯罩14穿过照射到草坪灯周围的地面上。通过调整外环偏光透镜102b的结构可以调整第二夹角β，进而调节照射至草坪灯周围的范围。通常情况下，第二夹角β优选为10-15°，这样光线会集中在草坪灯周围较小的一片区域，效果与普通的直下式照射模式基本相同。
因此，本实施例中的光源模组10即可满足360度均匀照射模式，同时又可满足直下式照射模式。生产时只需生产这一种光源模组10便可同时供两种草坪灯使用，大大节约了生产线投入成本。
由上面的介绍可以看出，360度均匀发光模式主要是依靠内环偏光透镜102a实现的，因此在360度均匀发光模式下，外环偏光透镜102b可以处于不工作状态，即被外环偏光透镜102b所配光的发光单元101可以处于关闭状态。甚至如果某些草坪灯只需要具备360度均匀发光模式而并不需要直下式发光模式，则可以在出厂时不装配与外环偏光透镜102b配合的发光单元101，而是仅装配被内环偏光透镜102a配光的发光单元101，以节约成本。此时的光源模组10中所有的发光单元101全部被内环偏光透镜102a配光。此外，为了进一步提高筒形灯罩14的光照均匀度，此时筒形灯罩14可以采用扩散罩。
同样的，本实施例中的光源模组10的直下式发光模式主要是依靠外环偏 光透镜102b实现的，因此在直下式发光模式下，内环偏光透镜102a可以处于不工作状态，即被内环配光透镜102a所配光的发光单元101可以处于关闭状态。甚至如果某些草坪灯只需要具备直下式发光模式而并不需要360度均匀发光模式，则可以在出厂时不装配与内环偏光透镜102a配合的发光单元101，而是仅装配被外环偏光透镜102b配光的发光单元101，以节约成本。此时的光源模组10中所有的发光单元101全部被外环偏光透镜102b配光。进一步地，由于直下式发光模式需要将地面照亮，因此对光照强度要求较高。此时如果筒形灯罩14采用扩散罩则对光照强度会产生较大的削弱作用，因此推荐采用透明材质的筒形灯罩14。
本实施例中，还可以使内环偏光透镜102a与外环偏光透镜102b同时发挥作用，即发光单元101的一部分被内环偏光透镜102a配光，而发光单元101的另一部分被外环偏光透镜102b配光。使草坪灯同时呈现直下式发光模式以及360度均匀发光模式。
通常情况下，360度均匀发光模式更多的是供人们欣赏，因此被内环偏光透镜102a所配光的发光单元101可以发出彩光，以提高美观性。而对于直下式发光模式的草坪灯，主要是向地面投射单一色彩的光线，因此这种草坪灯的美观性较差。而因为本实施例中的光源模组10的结构特点，可以提高直下式发光模式的草坪灯的美观性。
具体地，如图8所示，可以在光源腔13内设置一个装饰柱15，装饰柱15位于配光元件102与底座12之间，装饰柱15可以呈一些造型优美的结构。内环偏光透镜102a发出的彩光能够照射到装饰柱15，当人们从远处观察装饰柱15时便可看到装饰柱15的彩光效果，同时配合装饰柱15的结构，整体提升美观性。例如，装饰柱15整体可以为一个反射器，反射器15(为了便于描述，下面沿用装饰柱的附图标记)在轴心a的径向上的尺寸由靠近底座12的一端至靠近配光元件102的一端渐缩。反射器15能够通过自身构型对内环偏光透镜102a所射出的光线进行混光，使彩光在反射器15的表面呈现。 反射器15的表面优选采用漫反射面，以提高混光效果。此外，反射器15可以呈喇叭形，这种形状更加贴近自然，与环境更为协调。
如图3、4、11、12所示，本实施例中的光源模组10还包括底盖103以及线缆104，底盖103与配光元件102共同围成装配腔107。配光元件102与底盖103之间可以通过粘接或其它方式进行连接，较为优选的方案是在配光元件102上设置安装部102d，安装部102d围绕外环偏光透镜102b设置，安装部102d可以为螺纹孔，通过螺丝穿过底盖103后与螺纹孔螺纹连接，从而完成配光元件102与底盖103之间的固定连接。
基板100以及发光单元101均设置于装配腔107内，在通常情况下光源模组10还可包括与基板100电连接的电源驱动模块108，此时电源驱动模块108也一同设置于装配腔107内。电源驱动模块108可以设置在第一表面100a上也可以设置在第二表面100b上。
当电源驱动模块108设置在第一表面100a上时，为了容纳电源驱动模块108，本实施例中的配光元件102上可以设置第一收容部102c，内环偏光透镜102a围绕第一收容部102c。在配光元件102与底盖103共同围成装配腔107时，第一收容部102c为装配腔107的一部分，电源驱动模块108位于第一收容部102c内。
基于同样的原理，当电源驱动模块108设置在第二表面100b上时，为了容纳电源驱动模块108，本实施例还可在底盖103上设置第二收容部(图中未示出)用以容纳电源驱动模块108，在此不再赘述。
装配腔107开设有与外界连通的线缆口107a，线缆104由线缆口107a伸入装配腔107并与基板100以及电源驱动模块108电连接。
草坪灯因为安装在室外，因此需要考虑到防水。传统的草坪灯通常是采用整灯或灯头整体防水，即在草坪灯的主要外部部件之间的接缝处，尤其是装配光源模组10的结构均采用防水结构，而对光源模组10本身则不采用防水结构，通过外部的防水结构保证内部光源模组10的干燥。然而，由于草坪 灯的结构样式多种多样，采用外部防水形式需要针对每种样式的草坪灯都单独设计防水结构，设计成本和生产成本高昂。
而实际上，草坪灯内部的主要电器件便是光源模组10，其它诸如顶盖11、底座12、筒形灯罩14等部件及光源腔13的内部空置区域均无需防水，因此本实施例为了降低成本，直接对光源模组10进行了防水结构设计。具体地，如图3、4、11、12所示，光源模组10还包括密封圈105以及防水件106。
对于光源模组10而言，基板100、发光单元101、线缆104的端头以及电源驱动模块108这些电器件是防水的核心，而这些结构或部件均位于装配腔107内，因此只要做好装配腔107的防水便可保证光源模组10的正常使用。本实施例中通过密封圈105密封底盖103与配光元件102的连接处，为了美观，底盖103与配光元件102的边缘可能呈现各种不同形状，为了保证密封效果，密封圈105要与底盖103以及配光元件102的连接处随形。密封圈105的材质可以采用常用的橡胶或其它类似材质。同时，通过防水件106密封线缆104与线缆口107a的间隙。
根据草坪灯的结构差异，线缆口107a可以开设在不同的位置。例如，线缆口107a可以开设在第一收容部102c上(参见图3、4)，线缆口107a的轴线与轴心a平行甚至共轴。线缆104由地底延伸至灯身2内，并依次穿过底座12、光源腔13以及线缆口107a进入装配腔107内连接基板100以及电源驱动模块108。当顶盖11与底座12之间设置有装饰柱15时，可以在装饰柱15的中部设置沿轴心a方向延伸的第一过线通道150，线缆104穿过线缆口107a之后可以隐藏在装饰柱15的内部(参见图9)，通过第一过线通道150抵达底座12。由于配光元件102的中部可用空间较大，因此防水件106可以采用防水效果较佳的防水接头106a与防水接头螺母106b，防水接头106a套接在线缆104的外围并由线缆孔107a伸入装配腔107内，防水接头螺母106b在装配腔107内与防水接头106a螺纹连接。防水接头106a与防水接头螺母106b都是标准件，装配工艺便捷。
在另一些实施例中，线缆口107a开设在底盖103上。这种光源模组10可以应用于具有支撑件16的草坪灯中。具体地，如图10至13所示，支撑件16的两端分别连接顶盖11以及底座12，同时支撑件16的内部设置有沿轴心a方向延伸的第二过线通道160，第二过线通道160的其中一端延伸至顶盖11并连通光源腔13，而第二过线通道160的另一端延伸至底座12。线缆104由底座12可以依次通过第二过线通道160以及底盖103上的线缆口107a进入装配腔107内。这样线缆便可被支撑件16所隐藏。
通常情况下，支撑件16会设置在光源腔13的边缘，而线缆104需要延伸至光源模组10的中部，如果线缆口107a也沿轴心a的方向延伸则线缆104需要弯曲180°才能够进入线缆口107a，在线缆口107a与第二过线通道160之间线缆104会占用大量的空间。为了减小线缆104对空间的占用，本实施例可以在底盖103的中部设置一个朝向远离装配腔107的方向凸出的接线部103a，将线缆口107a设置在接线部103a上，同时将线缆口107a的轴线设置为与轴心a相垂直，使线缆104可以沿着轴心a的径向进入线缆口107a，减小线缆104对空间的占用。虽然此时线缆口107a仍然可以采用防水接头106a与防水接头螺母106b进行密封，然而由于其为标准件，自身尺寸较大，因此会导致接线部103a的尺寸增大，占用更多的空间。因此，当线缆口107a设置在接线部103a上时并不推荐采用这种密封结构。此时可以直接采用防水密封胶这种非常规的方式密封线缆口107a，这种密封方式可以不受线缆口107a自身尺寸的影响，较为节省空间。
光源模组10在出厂时可以在配光元件102的中部以及接线部103a上同时预留薄弱区域而不直接开设线缆口107a，在草坪灯的装配过程中可以根据草坪灯的实际结构再选择将哪一个薄弱区域冲开从而形成线缆口107a，这样能够进一步提高光源模组10的适用性。
本申请实施例公开的配光元件、光源模组、草坪灯灯头及草坪灯能够采用同一种光源模组同时满足直下式发光以及360度均匀发光两种模式的草坪 灯的发光需求，因此可以减少产线投入，节约生产成本。
本申请上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (20)

  1. 一种配光元件，其中，包括内环偏光透镜以及外环偏光透镜；
    所述内环偏光透镜以及所述外环偏光透镜拥有共同的轴心且所述外环偏光透镜环绕所述内环偏光透镜；
    所述内环偏光透镜用于将发光单元的光线向靠近所述轴心的方向偏转，所述内环偏光透镜的光照范围的中线与所述轴心呈第一夹角，所述第一夹角为锐角；
    所述外环偏光透镜用于将所述发光单元的光线向远离所述轴心的方向偏转，处于所述外环偏光透镜的光照范围的中线与所述轴心呈第二夹角，所述第二夹角为锐角。
  2. 根据权利要求1所述的配光元件，其中，所述第一夹角为10-15°，和/或所述第二夹角为10-15°。
  3. 根据权利要求1或2所述的配光元件，其中，还包括安装部，所述安装部围绕所述外环偏光透镜；
    所述安装部为螺纹孔。
  4. 根据权利要求1或2所述的配光元件，其中，还包括第一收容部，所述内环偏光透镜围绕所述第一收容部；
    所述第一收容部上设置有线缆口；
    所述线缆口的轴线与所述轴心平行。
  5. 一种光源模组，其中，包括基板、发光单元以及权利要求1至4任一项所述的配光元件；
    所述基板具有相互背离的第一表面以及第二表面，所述发光单元呈环形排布在所述第一表面上；
    所述配光元件覆盖所述第一表面且所述内环偏光透镜和/或所述外环偏光透镜为所述发光单元配光。
  6. 根据权利要求5所述的光源模组，其中，
    所述发光单元全部被所述内环偏光透镜配光；
    或
    所述发光单元全部被所述外环偏光透镜配光；
    或
    所述发光单元的一部分被所述内环偏光透镜配光，所述发光单元的另一部分被所述外环偏光透镜配光。
  7. 根据权利要求5或6所述的光源模组，其中，还包括底盖以及线缆；
    所述底盖与所述配光元件共同围成装配腔，所述基板以及所述发光单元均设置于所述装配腔内；
    所述装配腔开设有与外界连通的线缆口，所述线缆由所述线缆口伸入所述装配腔并与所述基板电连接。
  8. 根据权利要求7所述的光源模组，其中，还包括电源驱动模块，所述电源驱动模块设置在所述装配腔内且与所述基板电连接。
  9. 根据权利要求8所述的光源模组，其中，当所述配光元件还包括第一收容部，所述内环偏光透镜围绕所述第一收容部时，所述第一收容部为所述装配腔的一部分，所述电源驱动模块设置在所述第一表面且位于所述第一收容部内。
  10. 根据权利要求8所述的光源模组，其中，所述底盖还包括第二收容部，所述第二收容部为所述装配腔的一部分，所述电源驱动模块设置在所述第二表面且位于所述第二收容部内。
  11. 根据权利要求7所述的光源模组，其中，还包括防水件，所述防水件密封所述线缆与所述线缆口之间的间隙。
  12. 根据权利要求11所述的光源模组，其中，当所述配光元件还包括第一收容部，所述内环偏光透镜围绕所述第一收容部时，所述线缆口开设在所述第一收容部上，所述线缆口的轴线与所述轴心平行；
    所述防水件包括螺纹配合的防水接头以及防水接头螺母。
  13. 根据权利要求11所述的光源模组，其中，所述线缆口开设在所述底盖上；
    所述底盖的中部具有朝向远离所述装配腔的方向凸出的接线部，所述线缆口开设在所述接线部上，且所述线缆口的轴线与所述轴心相垂直；
    所述防水件为防水密封胶。
  14. 根据权利要求7所述的光源模组，其中，还包括密封圈，所述密封圈密封所述底盖与所述配光元件的连接处。
  15. 一种草坪灯灯头，其中，包括顶盖、底座以及权利要求5至14任一项所述的光源模组；
    所述顶盖与所述底座相对设置，二者围成的区域为光源腔，所述光源模组设置在所述光源腔靠近所述顶盖的一端，所述第一表面朝向所述底座。
  16. 根据权利要求15所述的草坪灯灯头，其中，还包括筒形灯罩，所述筒形灯罩的两端分别连接所述顶盖与所述底座；
    所述筒形灯罩的材质为透明材质；
    还包括装饰柱，所述装饰柱设置在所述光源腔内且位于所述配光元件与所述底座之间；
    所述装饰柱为反射器，所述反射器在所述轴心的径向上的尺寸由靠近所述底座的一端至靠近所述配光元件的一端渐缩；
    所述反射器呈喇叭形；
    当所述配光元件还包括第一收容部，所述内环偏光透镜围绕所述第一收容部，所述线缆口开设在所述第一收容部上，所述线缆口的轴线与所述轴心平行时，所述装饰柱的中部设置有沿所述轴心方向延伸的第一过线通道，所述线缆穿过所述第一过线通道。
  17. 根据权利要求16所述的草坪灯灯头，其中，所述筒形灯罩为扩散罩。
  18. 根据权利要求15至16任一项所述的草坪灯灯头，其中，当所述线缆口开设在所述底盖上时，所述草坪灯灯头还包括支撑件，所述支撑件的两端分别连接所述顶盖以及所述底座，所述支撑件的内部设置有沿所述轴心方向延伸的第二过线通道，所述第二过线通道的其中一端延伸至所述顶盖并连通所述光源腔，所述第二过线通道的另一端延伸至所述底座，所述线缆穿过所述第二过线通道。
  19. 一种草坪灯，其中，包括灯身以及权利要求15至18任一项所述的草坪灯灯头，所述灯身与所述底座可拆卸连接。
  20. 根据权利要求19所述的草坪灯，其中，所述灯身的顶端具有套接孔，所述底座背离所述顶盖的一端为插入端，所述插入端能够插入所述套接孔内，所述底座的周面上设置有止挡件，当所述插入端插入所述套接孔时所述套接孔的边缘与所述止挡件抵接。
PCT/CN2019/092319 2018-06-22 2019-06-21 配光元件、光源模组、草坪灯灯头及草坪灯 WO2019242745A1 (zh)

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