CN106439537B - High-efficient heat dissipation type LED bulb - Google Patents
High-efficient heat dissipation type LED bulb Download PDFInfo
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- CN106439537B CN106439537B CN201611099872.3A CN201611099872A CN106439537B CN 106439537 B CN106439537 B CN 106439537B CN 201611099872 A CN201611099872 A CN 201611099872A CN 106439537 B CN106439537 B CN 106439537B
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- 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
- F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
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- 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
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- 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
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- 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
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
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- 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
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (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)
Abstract
The invention relates to a high-efficiency heat-dissipation type LED bulb, which comprises a main body, a lamp cap and a glass bulb shell, wherein the lamp cap is provided with a micro air outlet hole, an electric contact, an electrified guide wire and an LED power supply driving assembly, and the glass bulb shell is internally provided with an elongated glass core column tube, an electric light-emitting assembly, an exhaust pipe and an electric light-emitting assembly mounting cavity. The glass core column tube is cylindrical, an air filling and exhausting hole is arranged on the core column head at the bottom of the cylinder, an exhaust pipe is arranged at the center of the cylinder cavity, and an annular cavity around the exhaust pipe forms an electric luminous component placing cavity communicated with the outside air. The electric luminous component comprises an LED luminous sheet, an LED substrate, a heat absorption and conduction block and a tension filling body which are beneficial to quickly absorbing and transferring heat, so that most of heat and liquid generated during working are remained in the air circulation environment to be instantly dissipated and evaporated, the heat dissipation pressure of the inner cavity of the bulb shell is reduced, the corrosion influence of liquid residue on the LED light-emitting element is avoided, simple structure and low cost, reliable operation and long service life, and has strong practicability.
Description
Technical Field
The invention relates to the technical field of manufacturing of lighting lamps, in particular to a high-efficiency heat-dissipation type LED bulb.
Background
<xnotran> , LED , LED 1 , 2 LED . </xnotran> In fig. 1, a conventional incandescent bulb body is composed of a base 1 and a glass bulb envelope 2 adhesively joined together by mastic. Wherein the method comprises the following steps: the lamp holder 1 is provided with a micro air outlet hole 11 and an electric contact 13 welded with one end of an electrified guide wire A12; the glass bulb shell 2 is internally provided with a glass core column tube 21, an electric supporting rod 22, an electric supporting frame 23, an electric luminous component 24 and an exhaust tube 25, wherein: the main body of the glass core column tube 21 is in a short cylindrical shape, the bottom of the glass core column tube is composed of a core column head 211 which is provided with an air charging and discharging hole 2111 and a conductive pin 2112 which is embedded in the glass core column head, the central position in the cavity of the tube body is provided with an air discharging tube 25 which corresponds to the air charging and discharging hole 2111 and is communicated with an air passage, and an annular space around the air discharging tube 25 forms a threading cavity 2113 of an electrified guide wire A12; one end of the electric support rod 22 is fixedly arranged on the end surface of the core column head 211 at the top end of the glass core column tube 21; the main body of the electric support frame 23 is in a divergent shape and is composed of a plurality of metal conductive wires, one end of each metal conductive wire is connected with the corresponding conductive pin 2112 in a welding mode; the electric luminous component 24 is filled by tungsten wires and is arranged at the other end of the electric supporting rod 22 and the top end part of the electric supporting frame 23; both ends of the exhaust pipe 25 are open in the initial processing state, one end of the exhaust pipe is connected with the air charging and discharging hole 2111 and is communicated with an air passage of the inner cavity of the glass bulb shell, the other end of the exhaust pipe is communicated with natural air in the lamp holder cavity, and in the molding state of a processed product, the other end positioned on one side of the lamp holder is in a closed state after the heat dissipation gas is filled in the glass bulb shell cavity, so that the inner cavity of the glass bulb shell is in a state of being completely isolated from the external air; during operation, the tungsten filament emits light and heats after being electrified, the glass bulb shell emits light and gives off heat to the periphery, and on the premise of ensuring illumination brightness, the defects of high power consumption, low luminous efficiency, easy breakage and damage of the filament and the like obviously exist, so that the effective working life of the bulb is short, the bulb needs to be frequently replaced in the use process, and the bulb is troublesome and high in daily use cost.
The LED lamp with higher luminous efficiency and longer service life is a newer generation lighting product developed after an incandescent lamp, and a typical representative product is an LED lamp strip bulb as shown in figure 2, and a main body of the LED lamp strip bulb is formed by a lamp holder 1 and a glass bulb shell 2 which are bonded and connected through cement. Wherein: the lamp holder 1 is provided with a miniature air outlet hole 11, an electrical contact 13 welded with one end of an electrified guide wire A12 inside, and an LED power supply driving component 14 electrically connected with the other end of the electrified guide wire A12; the glass bulb shell 2 intracavity contain and be provided with glass stem pipe 21, electric support rod 22, electric support frame 23, electroluminescent component 24, blast pipe 25 and circular telegram seal wire B26, wherein: the main body of the glass core column tube 21 is in a short cylindrical shape, the bottom of the tube is composed of a core column head 211 which is provided with an air filling and exhausting hole 2111 and is embedded with a conductive pin 2112, the central position in the cavity of the tube body is provided with the exhaust tube 25 which corresponds to the air filling and exhausting hole 2111 and is communicated with an air passage, and the annular space around the exhaust tube 25 forms a threading cavity 2113 of an electrified guide wire B26 which is arranged between the LED power supply driving component 14 and the conductive pin 2112; one end of the electric support rod 22 is fixedly arranged on the end surface of the core column head 211 at the top end of the glass core column tube 21; the main body of the electric support frame 23 is in a divergent shape and is composed of a plurality of L-shaped metal conductive wires, one ends of which are connected with the conductive pins 2112 in a welding way; the main body of the electric light-emitting component 24 is in a conical cylinder shape and is arranged between the other end of the electric supporting rod 22 and the end part of the electric supporting frame 23, and a plurality of light-emitting components 24 are arranged on the conical surface and are filled by LED lamp strips; both ends of the exhaust pipe 25 are open in the initial processing state, one end of the exhaust pipe is connected with the air charging and exhausting hole 2111 and is communicated with an air passage of the inner cavity of the glass bulb shell, the other end of the exhaust pipe is communicated with natural air in the cavity of the lamp holder, and in the molding state of a processed product, the other end on one side of the lamp holder is in a closed state after the heat dissipation gas is charged in the cavity of the glass bulb shell, so that the inner cavity of the glass bulb shell is in a state of being completely isolated from the external air; during operation, the LED lamp strip emits light and heats after being electrified, and as the traditional incandescent lamp is, the light is directly emitted to the periphery and the heat is dissipated through the glass bulb shell, so that the defect of large power consumption of the traditional incandescent lamp is overcome, a certain energy-saving effect is brought, but the heat dissipation effect is still restricted by the heat dissipation area due to the unchanged heat dissipation mode and heat dissipation area, and accordingly the power of the LED lamp is correspondingly restricted. <xnotran> , LED , LED , , , LED . </xnotran> Therefore, it is still less desirable from the viewpoint of economy and practicality.
Disclosure of Invention
The invention aims to overcome the defects of the existing LED lamp strip bulb, and provides the efficient heat dissipation type LED bulb which is relatively scientific and reasonable in structure, is beneficial to ensuring the sufficient heat dissipation of the bulb and the sufficient volatilization of the residual liquid in the bulb and is convenient to adopt the high-cost-performance LED paster lamp bead.
The invention relates to a high-efficiency heat-dissipation type LED bulb main body, which consists of a lamp holder and a glass bulb shell which are bonded and connected by cement, wherein the lamp holder is provided with a micro air outlet hole, an electric contact welded with one end of an electrified guide wire A inside and an LED power supply driving assembly electrically connected with the other end of the electrified guide wire A, and the LED bulb main body is characterized in that an elongated glass core column tube, an electric luminous assembly, an exhaust tube, an electrified guide wire B and a placement cavity of the electric luminous assembly are arranged in a cavity of the glass bulb shell, wherein:
the main body of the lengthened glass core column tube is in a deep and long cylindrical shape, the bottom of the tube is formed by a core column head provided with an air filling and exhausting hole, the central position in the cavity of the tube body is provided with the air exhaust pipe which corresponds to the position of the air filling and exhausting hole and is communicated with an air passage, and an annular cavity positioned around the air exhaust pipe forms a mounting cavity of the electric light-emitting component;
the main body of the electric luminous assembly is cylindrical and comprises an LED luminous sheet, an LED substrate, a heat absorption and conduction block and a tension filling body which are arranged in the arrangement cavity 27, wherein the luminous main surface of the LED luminous sheet is positioned on the wall side of the glass core column, the LED substrate is electrically connected with a power supply driving assembly electrifying guide wire B arranged in the lamp holder, the tension filling body is composed of an elastic device, an elastic material or a colloid, and the tension filling body is closely extruded and arranged on a contact surface beside the heat absorption and conduction block to reduce thermal resistance and facilitate instant and rapid heat transfer, and in addition, the LED luminous sheet is preferably selected by an LED patch lamp bead;
the two ends of the exhaust pipe are open in the initial processing state, one end of the exhaust pipe is connected with the air charging and exhausting hole and is communicated with an air passage of the inner cavity of the glass bulb shell through the air charging and exhausting hole, the other end of the exhaust pipe is positioned at one side of the lamp holder and is communicated with natural air in the cavity of the lamp holder, and after the heat dissipation gas is charged in the cavity of the glass bulb shell, the fire seal is closed, so that the inner cavity of the glass bulb shell is completely isolated from the external air;
when in work, the LED luminous sheet is electrified to emit light and heat, the generated light is transmitted by the shell of the glass stem tube and then radiated to the periphery by the glass bulb shell, the light emitting part of the main surface of the generated heat is transferred to the shell of the glass core column tube and then is convectively taken away by the heat dissipation gas in the cavity of the glass bulb shell to be dissipated to the outside of the glass bulb shell, the back part is absorbed by the LED substrate and quickly transferred to the heat absorption and conduction block under the action of full extrusion and limiting of the tensioning filling body, then heat is taken away to the lamp cap cavity along with airflow flowing in the placing cavity and dissipated to the outside through the micro air outlet hole, and meanwhile, liquid residues generated when the electric light-emitting component works are evaporated.
Based on the conception, the invention discloses a high-efficiency heat-dissipation type LED bulb, as the glass core column tube is arranged into a deep and long cylinder shape, the electric luminous component is arranged in the arrangement cavity which is communicated with the outside air and is formed by the glass core column tube ring cavity, and the rest gaps after the LED luminous sheets and the LED substrate are arranged in the arrangement cavity are filled with the heat absorption and conduction block and the tensioning filling body, the glass core column tube becomes the luminous center of the bulb, light rays are emitted out from the glass core column tube, and the heat generated when the LED luminous sheets work, the heat dissipation gas convection diffusion in the inner cavity of the glass bulb shell can be partially conducted through the wall of the glass core column tube, the heat absorption heat conduction block can be rapidly transmitted under the action of the tensioning filling body, the heat dissipation heat conduction block is transmitted to the inner cavity of the lamp holder under the action of airflow in the placement cavity, the heat dissipation heat conduction block is diffused outwards through the micro air outlet holes, the situation that the LED light-emitting assembly is not smooth in heat dissipation and rapid in temperature rise and the service life of the LED light-emitting assembly is affected can be avoided, and meanwhile, liquid generated during the working of the electric light-emitting assembly is remained in the environment communicated with the external natural air phase and is automatically evaporated immediately. Therefore, compared with the existing LED lamp strip bulb, the high-efficiency heat dissipation type LED bulb not only reduces the pressure of the traditional LED bulb for dissipating heat through the inner cavity of the glass bulb shell, but also avoids the corrosion influence of liquid residues on an LED light-emitting element, is beneficial to ensuring the reliable service life and the illumination effect of the LED bulb, and creates conditions for improving the power of the LED bulb as required; although the technical scheme of the invention lengthens the glass core column tube, the invention avoids the troubles of embedding the conductive pins on the core column head, arranging the electric support frame and the electric support rod on the end surface of the core column head and arranging the electric luminous assembly between the electric support rod and the electric support frame, thereby leading the structure to be simpler and more reasonable, greatly simplifying the production process, being beneficial to reducing the production cost, also obviously improving the heat radiation performance of the bulb, and thoroughly overcoming the problems of possible damage to the LED luminous assembly caused by liquid residue and the technical and cost increase, thereby extremely effectively ensuring the reliable working life and the illumination effect of the LED bulb. The LED bulb with excellent ventilation and heat dissipation functions is a major technical breakthrough in the technical field of LED bulb manufacturing, and provides reliable technical support for reducing the production cost and daily use cost of the LED bulb, fully playing the energy-saving advantages, expanding the application market and upgrading the product.
Drawings
FIG. 1 is a schematic view of the basic structure of a conventional incandescent lamp;
FIG. 2 is a schematic diagram of the basic structure of a prior art LED light bar bulb in accordance with the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the present invention.
In the figure:
1. lamp holder 11, miniature air outlet 12, electrified conducting wire A13 and electric contact
14.LED Power Driving component 2. Glass bulb 21. Lengthened glass core column tube
211. Core post 2111, fill and vent 2112, electrical lead 2113, and feedthrough chamber
22. Electric supporting rod 23, electric supporting frame 24, electric luminous component 241 and LED luminous sheet
242 LED substrate 243, heat absorption and conduction block 244, tensioning filling body
25. Exhaust pipe 26, electrified guide wire B27, installation cavity
Detailed Description
The following description is to be taken in conjunction with the accompanying drawings and exemplary embodiments the present invention is further explained.
In fig. 3, the main body of the high-efficiency heat-dissipation LED bulb of the present invention is composed of a lamp cap 1 and a glass bulb shell 2 which are bonded together by cement, the lamp cap 1 is provided with a micro air outlet 11, an electrical contact 13 welded with one end of an electrified guide wire a12 inside, and an LED power driving assembly 14 electrically connected with the other end of the electrified guide wire a12, is characterized in that an elongated glass core column tube 21, an electric luminous component 24, an exhaust tube 25, an electrified guide wire B26 and a placing cavity 27 of the electric luminous component 24 are arranged in the cavity of the glass bulb shell 2, wherein:
the main body of the lengthened glass core column tube 21 is in a deep and long cylindrical shape, the bottom of the tube is formed by a core column head 211 provided with an air charging and discharging hole 2111, the central position in the cavity of the tube body is provided with the exhaust tube 25 which corresponds to the air charging and discharging hole 2111 and is communicated with an air passage, and an annular cavity around the exhaust tube 25 forms a mounting cavity 27 of the electric light-emitting component 24;
the main body of the electroluminescent assembly 24 is cylindrical and comprises an LED luminescent sheet 241, an LED substrate 242, a heat absorption and conduction block 243 and a tension filling body 244 which are arranged in the arrangement cavity 27, wherein the luminescent main surface of the LED luminescent sheet 241 is positioned on the wall side of the glass core column tube 21, the LED substrate 242 is electrically connected with an electric conduction wire B26 of the power driving assembly 14 arranged in the lamp holder 1, the tension filling body 244 is made of an elastic device, an elastic material or a colloid, is arranged on a side contact surface of the heat absorption and conduction block 243 in a clinging and pressing manner to reduce thermal resistance and facilitate instant and rapid heat transfer, and in addition, the LED luminescent sheet 241 is preferably selected by an LED patch lamp bead;
both ends of the exhaust pipe 25 are open in the initial processing state, one end of the exhaust pipe is connected with the air charging and exhausting hole 2111 and is communicated with an air passage of the inner cavity of the glass bulb shell 2 through the air charging and exhausting hole 2111, the other end of the exhaust pipe is positioned at one side of the lamp holder and is communicated with natural air in the cavity of the lamp holder 1, and the cavity of the glass bulb shell 2 is sealed by fire after being filled with heat dissipation gas to form a closed state, so that the inner cavity of the glass bulb shell 2 is completely isolated from the outside air;
when the LED bulb lamp works, the LED light-emitting sheet 241 emits light and heat after being electrified, the generated light is transmitted through the shell of the glass core column tube 21 and then is radiated to the periphery through the glass bulb shell 2, the generated heat main surface light-emitting part is transmitted to the shell of the glass core column tube 21, then the generated heat is taken away to the glass bulb shell 2 through convection of heat-dissipating gas in the cavity of the glass bulb shell 2 and is radiated outwards, the back part is absorbed by the LED substrate 242 and is quickly transmitted to the heat-absorbing heat-conducting block 243 under the full extrusion limiting effect of the tensioning filler 244, then the heat is taken away to the cavity of the lamp holder 1 along with the airflow flowing in the placing cavity 27 and is radiated outwards through the micro air outlet 11, and meanwhile, liquid residues generated when the electric light-emitting component 24 works are also evaporated.
Claims (2)
1. <xnotran> LED , (1) (2) , (1) (11), A (12) (13) A (12) LED (14), (2) (21), (24), (25), B (26), (24) (27), : </xnotran>
The main body of the lengthened glass core column tube (21) is in a deep and long cylindrical shape, the bottom of the tube is composed of a core column head (211) provided with an air filling and exhausting hole (2111), the central position in the cylinder cavity is provided with the exhaust pipe (25) which corresponds to the position of the air charging and exhausting hole (2111) and is communicated with the air passage, and an annular cavity around the exhaust pipe (25) forms a mounting cavity (27) of the electric luminous component (24);
<xnotran> (24) , (27) LED (241), LED (242), (243) (244), LED (241) (21) , LED (242) (1) (14) B (26) , (244) , , (243) , ; </xnotran>
The two ends of the exhaust pipe (25) are open in an initial processing state, one end of the exhaust pipe is connected with the air filling and exhausting hole (2111) and is communicated with an air passage of an inner cavity of the glass bulb shell (2) through the air filling and exhausting hole (2111), the other end of the exhaust pipe is positioned at one side of the lamp holder and is communicated with natural air in the cavity of the lamp holder (1), and the inner cavity of the glass bulb shell (2) is in a state of being completely isolated from the external air after the heat dissipation gas is filled in the cavity of the bulb shell and is sealed;
when the glass bulb shell works, the LED light-emitting sheet emits light and heats after being electrified, the generated light is transmitted through the shell of the glass core column tube (21) and then is radiated to the periphery through the glass bulb shell (2), the main surface part of the generated heat is transferred to the shell of the glass core column tube (21), then the heat is convectively taken away by the heat dissipation gas in the cavity of the glass bulb shell (2) and is dissipated to the outside through the glass bulb shell (2), the back part is absorbed by the LED substrate (242), and is quickly transferred to the heat absorption and conduction block (243) under the full extrusion and limiting action of the tensioning filler (244), then is brought into the cavity of the lamp holder (1) along with the airflow flowing in the placing cavity (27) and is outwards diffused through the micro air outlet holes (11), and liquid residues generated when the electric light-emitting component (24) works are also evaporated along with the airflow.
2. The LED bulb with high efficiency and heat dissipation function as claimed in claim 1, wherein the LED light-emitting sheet (241) is preferably replaced by an LED patch lamp bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099872.3A CN106439537B (en) | 2016-12-05 | 2016-12-05 | High-efficient heat dissipation type LED bulb |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099872.3A CN106439537B (en) | 2016-12-05 | 2016-12-05 | High-efficient heat dissipation type LED bulb |
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| CN106439537A CN106439537A (en) | 2017-02-22 |
| CN106439537B true CN106439537B (en) | 2022-10-04 |
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| ES2531050T5 (en) * | 2010-09-08 | 2021-05-04 | Zhejiang Ledison Optoelectronics Co Ltd | LED bulb and LED light bar capable of emitting light above 4 PI |
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| CN106439537A (en) | 2017-02-22 |
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