CN111379982B - LED lamp - Google Patents

LED lamp Download PDF

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Publication number
CN111379982B
CN111379982B CN201911258268.4A CN201911258268A CN111379982B CN 111379982 B CN111379982 B CN 111379982B CN 201911258268 A CN201911258268 A CN 201911258268A CN 111379982 B CN111379982 B CN 111379982B
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China
Prior art keywords
led lamp
light
heat
led
metal layer
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Application number
CN201911258268.4A
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Chinese (zh)
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CN111379982A (en
Inventor
贺敏明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Klite Electric Manufacture Co Ltd
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Ningbo Klite Electric Manufacture Co Ltd
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Priority to CN201911258268.4A priority Critical patent/CN111379982B/en
Publication of CN111379982A publication Critical patent/CN111379982A/en
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    • 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
    • F21K9/233—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 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
    • 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
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/717—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements using split or remote units thermally interconnected, e.g. by thermally conductive bars or heat pipes
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21V7/04—Optical design
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention discloses an LED lamp, which comprises a lamp cup, a reflecting bowl, an LED light emitting component, a heat conductor, a heat dissipation plate and a light transmitting cover, wherein the heat conductor comprises a heat conducting column and a bottom plate; the LED light-emitting component comprises an installation cylinder, the installation cylinder is sleeved on the heat conduction column, and a plurality of LED lamp beads are arranged in the circumferential direction of the outer side of the installation cylinder; the light-transmitting cover is sleeved outside the LED light-emitting component. According to the LED lamp, the LED lamp beads are arranged in the circumferential direction of the outer side of the mounting cylinder, light rays emitted by the LED lamp beads can be directly projected onto the reflecting bowl and are projected outwards after being reflected by the reflecting bowl, and compared with a traditional LED lamp, the LED lamp is small in light flux loss and high in light efficiency because the light rays do not pass through the light guide column.

Description

LED lamp
Technical Field
The invention relates to the technical field of illumination, in particular to an LED lamp.
Background
Present common LED lamp includes lamp cup, reflector, LED luminous component, leaded light post usually, and the leaded light post is located the reflector center, and LED luminous component sets up in the one end of leaded light post, and the light emitting mode of this LED lamp is: the LED light emitting component generates light which enters the light guide column, the light enters the light guide column to be scattered and then is projected to the light reflecting bowl, and the light is projected out through the reflection effect of the light reflecting bowl. The LED lamp has the following disadvantages: when the light that LED sent out light component to produce passed through the leaded light post, partly light was absorbed by the leaded light post, and luminous flux loss is great, and the light efficiency is low.
Such as: the invention discloses a Chinese patent publication No. CN103759146A, and the name of the invention is an LED lamp, which comprises a reflecting cup with a central hole, a light guide column arranged in the central hole, and an LED light emitting part coupled with the light guide column, wherein the LED light emitting part is positioned at the outer side of the reflecting cup, part of the light guide column is positioned at the inner side of the reflecting cup, the light guide column is an axisymmetric entity made of transparent material, and the light guide column is arranged with the reflecting cup in a sliding way along the axial direction of the light guide column. The invention has the following disadvantages: when the light that LED sent out light component to produce passed through the leaded light post, partly light was absorbed by the leaded light post, and luminous flux loss is great, and the light efficiency is low.
Disclosure of Invention
The invention aims to solve the problems of large light flux loss and low lighting effect of the conventional LED lamp, and provides an LED lamp which can effectively solve the problems.
The purpose of the invention is realized by the following technical scheme: an LED lamp comprises a lamp cup, a reflecting bowl, an LED light emitting part, a heat conductor, a heat dissipation plate and a light transmitting cover, wherein the heat conductor comprises a heat conducting column and a bottom plate; the LED light-emitting component comprises an installation cylinder, the installation cylinder is sleeved on the heat conduction column, and a plurality of LED lamp beads are arranged in the circumferential direction of the outer side of the installation cylinder; the light-transmitting cover is sleeved outside the LED light-emitting component.
According to the LED lamp, the LED lamp beads are arranged in the circumferential direction of the outer side of the mounting cylinder, light rays emitted by the LED lamp beads can be directly projected onto the reflecting bowl and are projected outwards after being reflected by the reflecting bowl, and compared with a traditional LED lamp, the LED lamp is small in light flux loss and high in light efficiency because the light rays do not pass through the light guide column. Because the installation barrel is sleeved on the heat conduction column, heat generated by the LED lamp beads during operation can be conducted to the heat dissipation plate through the heat conduction column, and therefore a good heat dissipation effect is achieved. The printing opacity cover can play the guard action to LED luminous component on the one hand, and on the other hand can change the colour of printing opacity cover according to actual need to adjust the luminous colour of LED etc. in order to satisfy different user demands.
Preferably, the mounting cylinder comprises a plurality of substrates, the substrates are connected through an arc-shaped connecting plate to form a cylindrical structure, the cross section of the arc-shaped connecting plate is arc-shaped, the arc-shaped connecting plate comprises an inner metal layer and an outer metal layer, and the thermal expansion coefficient of the outer metal layer is greater than that of the inner metal layer. When the LED lamp is used, the LED lamp beads can generate heat, so that the temperature of the arc-shaped connecting plate rises, the arc-shaped connecting plate is composed of an inner side metal layer and an outer side metal layer, the thermal expansion coefficient of the outer side metal layer is larger than that of the inner side metal layer, when the temperature of the arc-shaped connecting plate rises, the two ends of the arc-shaped connecting plate can be bent towards the inner side, the mounting cylinder is made to shrink inwards, the side face of the heat conducting column can be tightly attached to the mounting cylinder, the gap between the mounting cylinder and the heat conducting column is eliminated, the heat conducting effect between the mounting cylinder and the heat conducting column is improved, and the heat radiating performance of the LED light-emitting component is further improved.
Preferably, the material of the outer metal layer is aluminum, and the material of the inner metal layer is iron.
Preferably, the mounting cylinder is of a hexagonal cylindrical structure, the cross section of the heat conduction column is hexagonal, and the mounting cylinder is tightly attached to the side face of the heat conduction column.
Preferably, the heat conductor and the heat dissipation plate are made of aluminum. The aluminum has good heat-conducting property and can improve the heat-radiating effect.
Preferably, the bottom plate is provided with a convex ring corresponding to the light-transmitting cover, and one end of the light-transmitting cover is sleeved on the convex ring.
Preferably, a driver is arranged on the lamp cup, and the LED lamp beads are electrically connected with the driver. The driver is connected with the 220V power supply and is used for adjusting the voltage and driving the LED lamp beads to emit light.
Preferably, the light reflecting bowl is provided with a center sill, and the middle of the center sill is abutted against one end of the heat conducting column.
The invention has the beneficial effects that: according to the LED lamp, the LED lamp beads are arranged in the circumferential direction of the outer side of the mounting cylinder, light rays emitted by the LED lamp beads can be directly projected onto the reflecting bowl and are projected outwards after being reflected by the reflecting bowl, and compared with a traditional LED lamp, the LED lamp is small in light flux loss and high in light efficiency because the light rays do not pass through the light guide column.
Drawings
Fig. 1 is a partial cross-sectional view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic structural diagram of an LED light emitting component.
Fig. 4 is a schematic structural view of the heat conductor.
Fig. 5 is a cross-sectional view of a circular arc connecting plate.
In the figure: 1. lamp cup, 2, reflector, 3, heating panel, 4, heat conductor, 5, LED luminous component, 6, center sill, 7, printing opacity cover, 8, driver, 9, set screw, 10, base plate, 11, arc connecting plate, 12, LED lamp pearl, 13, heat conduction post, 14, bottom plate, 15, bulge loop, 16, inboard metal level, 17, outside metal level.
Detailed Description
The invention is further described by the following detailed description in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 to 5, an LED lamp includes a lamp cup 1, a reflector 2, a heat sink 3, a heat conductor 4, an LED light emitting component 5, and a light transmissive cover 7. The heat conductor comprises a heat conducting column 13 and a base plate 14. The cross section of the heat conduction column 13 is hexagonal. The base plate 14 has a circular plate-like structure. The heat conduction column 13 is disposed at the center of the base plate 14 and perpendicular to the base plate 14. The heat conducting column 13 is arranged in the center of the light reflecting bowl 2. The heat dissipation plate 3 has a circular plate-like structure. The base plate 14 is fixedly connected to the heat dissipation plate 3 by fixing screws 9. The heat sink 3 is fixed to the lamp cup 1. The heat conductor 4 and the heat dissipation plate 3 are both made of aluminum.
The LED lighting component 5 comprises a mounting cylinder. The installation cylinder is of a hexagonal cylindrical structure. The mounting cylinder is sleeved on the heat conduction column 13. The mounting cylinder is tightly attached to the side surface of the heat conducting column 13. The mounting cylinder comprises six substrates 10, and the substrates 10 are in a rectangular plate-shaped structure. The substrates 10 are connected through an arc-shaped connecting plate 11 to form a cylindrical structure. And the LED lamp beads 12 are arranged on the outer side of the mounting cylinder in the circumferential direction. LED lamp pearl 12 is fixed on base plate 10. The cross section of the arc-shaped connecting plate 11 is arc-shaped. The arc-shaped connection plate 11 comprises an inner metal layer 16 and an outer metal layer 17. The coefficient of thermal expansion of the outer metal layer 17 is greater than the coefficient of thermal expansion of the inner metal layer 16. The material of the outer metal layer 17 is aluminum, and the material of the inner metal layer 16 is iron. When the LED lamp is used, the LED lamp beads can generate heat, so that the temperature of the arc-shaped connecting plate rises, the arc-shaped connecting plate is composed of an inner side metal layer and an outer side metal layer, the thermal expansion coefficient of the outer side metal layer is larger than that of the inner side metal layer, when the temperature of the arc-shaped connecting plate rises, the two ends of the arc-shaped connecting plate can be bent towards the inner side, the mounting cylinder is made to shrink inwards, the side face of the heat conducting column can be tightly attached to the mounting cylinder, the gap between the mounting cylinder and the heat conducting column is eliminated, the heat conducting effect between the mounting cylinder and the heat conducting column is improved, and the heat radiating performance of the LED light-emitting component is further improved.
The light-transmitting cover 7 is sleeved outside the LED light-emitting part 5. The bottom plate 14 is provided with a convex ring 15 corresponding to the light-transmitting cover 7, and one end of the light-transmitting cover 7 is sleeved on the convex ring 15. The light reflecting bowl 2 is provided with a middle beam 6, and the middle part of the middle beam 6 is abutted against one end of the heat conducting column 13. Two ends of the middle beam 6 are fixedly connected to the light emitting bowl. The lamp cup 1 is provided with a driver 8 for driving the LED lamp beads 12 to emit light. LED lamp pearl 12 is connected with driver 8 electricity.
According to the LED lamp, the LED lamp beads are arranged in the circumferential direction of the outer side of the mounting cylinder, light rays emitted by the LED lamp beads can be directly projected onto the reflecting bowl and are projected outwards after being reflected by the reflecting bowl, and compared with a traditional LED lamp, the LED lamp is small in light flux loss and high in light efficiency because the light rays do not pass through the light guide column. Because the installation barrel is sleeved on the heat conduction column, heat generated by the LED lamp beads during operation can be conducted to the heat dissipation plate through the heat conduction column, and therefore a good heat dissipation effect is achieved. The printing opacity cover can play the guard action to LED luminous component on the one hand, and on the other hand can change the colour of printing opacity cover according to actual need to adjust the luminous colour of LED etc. in order to satisfy different user demands.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a LED lamp, includes lamp cup, reflector, LED luminous component, its characterized in that: the heat conducting device comprises a heat conducting column and a bottom plate, the bottom plate is connected with the heat radiating plate, and the heat conducting column is arranged at the center of the reflecting bowl; the LED light-emitting component comprises an installation cylinder, the installation cylinder is sleeved on the heat conduction column, and a plurality of LED lamp beads are arranged in the circumferential direction of the outer side of the installation cylinder; the light-transmitting cover is sleeved outside the LED light-emitting part; the mounting cylinder comprises a plurality of substrates, the substrates are connected through an arc-shaped connecting plate to form a cylindrical structure, the cross section of the arc-shaped connecting plate is arc-shaped, the arc-shaped connecting plate comprises an inner metal layer and an outer metal layer, and the thermal expansion coefficient of the outer metal layer is larger than that of the inner metal layer.
2. The LED lamp of claim 1, wherein the outer metal layer is made of aluminum and the inner metal layer is made of iron.
3. The LED lamp of claim 1, wherein the mounting cylinder has a hexagonal cylindrical structure, the heat-conducting pillar has a hexagonal cross-section, and the mounting cylinder is tightly attached to the side surface of the heat-conducting pillar.
4. The LED lamp of claim 1, wherein the heat conductor and the heat spreader plate are both made of aluminum.
5. The LED lamp according to claim 1, wherein the bottom plate is provided with a protruding ring corresponding to the light-transmitting cover, and an end of the light-transmitting cover is sleeved on the protruding ring.
6. The LED lamp according to claim 1, wherein a driver is disposed on the lamp cup, and the LED lamp bead is electrically connected to the driver.
7. The LED lamp according to claim 1, wherein the reflector is provided with a center beam, and a middle portion of the center beam abuts against one end of the heat-conducting post.
CN201911258268.4A 2019-12-10 2019-12-10 LED lamp Active CN111379982B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911258268.4A CN111379982B (en) 2019-12-10 2019-12-10 LED lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911258268.4A CN111379982B (en) 2019-12-10 2019-12-10 LED lamp

Publications (2)

Publication Number Publication Date
CN111379982A CN111379982A (en) 2020-07-07
CN111379982B true CN111379982B (en) 2022-01-07

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CN201911258268.4A Active CN111379982B (en) 2019-12-10 2019-12-10 LED lamp

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102054929A (en) * 2009-10-22 2011-05-11 Nxp股份有限公司 Apparatus for regulating the temperature of a light emitting diode
CN102454902A (en) * 2010-10-26 2012-05-16 马士科技有限公司 LED (light emitting diode) reflecting lamp
WO2014010141A1 (en) * 2012-07-12 2014-01-16 パナソニック株式会社 Bulb-shaped lamp and lighting device
CN104235748A (en) * 2013-06-19 2014-12-24 欧司朗有限公司 Lamp shell, manufacturing method thereof and lighting device with lamp shell
CN207674136U (en) * 2017-12-15 2018-07-31 宁波凯耀电器制造有限公司 Niblet LED light
CN207674205U (en) * 2017-12-19 2018-07-31 宁波凯耀电器制造有限公司 The wide-angle lamp of height heat dissipation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102054929A (en) * 2009-10-22 2011-05-11 Nxp股份有限公司 Apparatus for regulating the temperature of a light emitting diode
CN102454902A (en) * 2010-10-26 2012-05-16 马士科技有限公司 LED (light emitting diode) reflecting lamp
WO2014010141A1 (en) * 2012-07-12 2014-01-16 パナソニック株式会社 Bulb-shaped lamp and lighting device
CN104235748A (en) * 2013-06-19 2014-12-24 欧司朗有限公司 Lamp shell, manufacturing method thereof and lighting device with lamp shell
CN207674136U (en) * 2017-12-15 2018-07-31 宁波凯耀电器制造有限公司 Niblet LED light
CN207674205U (en) * 2017-12-19 2018-07-31 宁波凯耀电器制造有限公司 The wide-angle lamp of height heat dissipation

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