A novel LED light source structure

Abstract

This invention discloses a novel LED light source structure, installed on the lamp body of a vehicle lamp. The lamp body includes a heat sink and a heat-conducting chuck mounted on the heat sink. The vehicle lamp has a light-transmitting cover. The LED light source structure is mounted on the heat-conducting chuck and located behind the light-transmitting cover. The LED light source structure includes a light source substrate mounted on the front end face of the heat-conducting chuck, LED beads disposed on the light source substrate, a light guide column mounted on the heat-conducting chuck and located in front of the LED beads, and a guide column mounted on the heat-conducting chuck and fixed outside the light guide column. The light guide column includes a light guide base portion and a light guide column body portion disposed at the front end of the light guide base portion. The light guide column is made of light-conducting material and is a solid structure. The top of the light guide column protrudes outside the guide column. The inner surface of the guide column is set as a reflective surface. The light emitted by the LED beads shines on the light guide column, causing the entire light guide column to emit light outward. The light emitted by the light guide column is enhanced after being reflected by the inner surface of the guide column and finally shines outward from the top of the light guide column.

Description

Technical Field

[0001] This invention relates to the technical field of lighting fixtures, and in particular to a novel LED light source structure. Background Technology

[0002] LED light source structures are widely used in automotive lights. Automotive lights have a light-transmitting cover, and the light emission point of existing LED light source structures is generally fixed and cannot be changed. Furthermore, to achieve uniform light emission, existing LED light source structures typically use a multi-faceted light source arrangement on the light source column for light distribution. While this method can achieve a light emission without dark areas, it cannot perfectly achieve 360-degree uniform light emission. Moreover, this light distribution structure design is relatively traditional and outdated, requiring a large number of LED chips, resulting in high power consumption, high heat generation, increased heat dissipation burden, and a complex structure leading to numerous manufacturing processes and high production costs. In addition, the heat dissipation structures of existing LED light source structures are also relatively traditional and outdated, with excessively long heat conduction distances, low heat dissipation efficiency, and poor heat dissipation effect.

[0003] Therefore, how to achieve a new type of LED light source structure that is simple and reasonable in structure, novel in light distribution, can change the light emission point, can emit light uniformly in 360 degrees, effectively reduce the number of LED beads, thereby reducing power and heat generation, and has a short heat conduction distance, high heat dissipation efficiency, ideal heat dissipation effect, and effectively simplifies the processing and production process and reduces production costs is a technical problem that the industry urgently needs to solve. Summary of the Invention

[0004] The main objective of this invention is to provide a novel LED light source structure, which aims to achieve a simple and reasonable structure, a novel light distribution method, a changeable light emission point, uniform light emission from 360 degrees, effectively reduce the number of LED beads, thereby reducing power and heat generation, and has a short thermal conduction distance, high heat dissipation efficiency, and ideal heat dissipation effect. It also effectively simplifies the processing and production process and reduces production costs.

[0005] This invention proposes a novel LED light source structure, mounted on the lamp body of a vehicle lamp. The lamp body includes a heat sink and a heat-conducting chuck mounted on the heat sink. The vehicle lamp has a light-transmitting cover. The LED light source structure is mounted on the heat-conducting chuck and located behind the light-transmitting cover. The LED light source structure includes a light source substrate mounted on the front end of the heat-conducting chuck, LED beads mounted on the light source substrate, a light guide column mounted on the heat-conducting chuck and located in front of the LED beads, and a guide column mounted on the heat-conducting chuck and fixed outside the light guide column. The light guide column includes a light guide base and a light guide column body located at the front end of the light guide base. The light guide column is made of light-guiding material and is designed as a solid structure to provide overall light guidance. The top of the light guide column protrudes outside the guide column. The inner surface of the guide column is designed as a reflective surface to enhance the light intensity. The light emitted by the LED beads shines on the light guide column, causing the entire light guide column to emit light outward. The light emitted by the light guide column is enhanced after being reflected by the inner surface of the guide column and finally shines outward from the top of the light guide column.

[0006] Preferably, the LED light source structure further includes a magnet sleeved outside the light guide column and located between the light guide base and the guide column, an iron tube sleeved outside the guide column and located at the front end of the magnet, the front end of the iron tube having an outer edge, the LED light source structure further includes a coil sleeved outside the iron tube and located between the outer edge and the magnet, and a reset component clamped between the magnet and the light source substrate and serving a reset function, the light guide column, guide column, and magnet having a fixed structure and being combined into a synchronous moving structure, the synchronous moving structure being able to move back and forth along the iron tube; when the coil is de-energized, the iron tube and the magnet attract each other with like poles, generating a magnetic attraction force that makes the magnet It is attached tightly to the iron pipe; when the coil is energized, an electromagnetic force is generated between the coil and the iron pipe due to electromagnetic reaction. The electromagnetic force is greater than the magnetic attraction. The electromagnetic force and the like poles of the magnet repel each other, causing the synchronous moving structure to move backward, thereby increasing the distance between the light guide column and the light-transmitting cover, thus creating the high beam effect; when the coil is de-energized, the electromagnetic force disappears, and the magnetic attraction between the iron pipe and the magnet comes into play. At the same time, the reset component generates a spring force on the magnet. Under the action of the magnetic attraction and the spring force, the magnet drives the entire synchronous moving structure to move forward, thereby decreasing the distance between the light guide column and the light-transmitting cover, thus creating the low beam effect.

[0007] Preferably, the reset component is a reset spring.

[0008] Preferably, the lamp body further includes a driving device mounted on the heat sink, a power plug mounted on the heat sink and electrically connected to the driving device, and the driving device is electrically connected to the LED light source structure and the coil.

[0009] Preferably, the thermally conductive chuck is made of thermally conductive metal.

[0010] This invention realizes a new type of LED light source structure with simple and reasonable structure, novel light distribution method, changeable light emission point, 360-degree uniform light emission, effectively reducing the number of LED beads, thereby reducing power and heat generation, and the heat dissipation structure has a short thermal conduction distance, high heat dissipation efficiency, and ideal heat dissipation effect. It also effectively simplifies the processing and production process and reduces production costs. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of one embodiment of a novel LED light source structure according to the present invention;

[0012] Figure 2 This is a second three-dimensional structural schematic diagram of an embodiment of a novel LED light source structure according to the present invention;

[0013] Figure 3 This is an exploded view of an embodiment of a novel LED light source structure according to the present invention.

[0014] Figure 4 This is a three-dimensional structural schematic diagram of another embodiment of a novel LED light source structure according to the present invention;

[0015] Figure 5 This is a second three-dimensional structural schematic diagram of another embodiment of a novel LED light source structure according to the present invention;

[0016] Figure 6 This is a partially exploded structural diagram of another embodiment of a novel LED light source structure according to the present invention;

[0017] Figure 7 This is an exploded view of another embodiment of a novel LED light source structure according to the present invention;

[0018] Figure 8 This is a partially exploded structural diagram of another embodiment of a novel LED light source structure according to the present invention;

[0019] Figure 9 This is an exploded view of another embodiment of a novel LED light source structure according to the present invention.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] Reference Figures 1 to 3This invention proposes an embodiment of a novel LED light source structure, mounted on the lamp body of a vehicle lamp. The lamp body includes a heat sink 101 and a heat-conducting chuck 102 mounted on the heat sink 101. The vehicle lamp has a light-transmitting cover. The LED light source structure is mounted on the heat-conducting chuck 102 and located behind the light-transmitting cover. The LED light source structure includes a light source substrate 201 mounted on the front end face of the heat-conducting chuck 102, LED beads 202 disposed on the light source substrate 201, and LED beads 202 mounted on the heat-conducting chuck 102 and located behind the light-transmitting cover. 2. The light guide column in front is mounted on the heat-conducting chuck 102 and a guide column 205 is sleeved and fixed outside the light guide column. The light guide column includes a light guide base part 203 and a light guide column body part 204 located at the front end of the light guide base part 203. The light guide column is made of light-guiding material and is designed as a solid structure to play the role of guiding light as a whole. The top of the light guide column is exposed outside the guide column. The inner surface of the guide column is designed as a reflective surface that reflects light to enhance the light intensity. The guide column is made of opaque material and plays a guiding and limiting role for the light guide column.

[0023] The light emitted by the LED beads shines onto the light guide column, causing the entire light guide column to emit light outwards. The light emitted from the light guide column is amplified by reflection from its inner surface and ultimately shines outwards from the top of the light guide column. This shifts the light emission point from the LED beads to the top of the light guide column, transforming the direct outward emission of light from the LED beads into a 360-degree refracted light emission from the top of the light guide column. This novel and efficient light distribution method guides the light to the designated emission point, i.e., the focal point, changing the emission point while achieving uniform 360-degree light emission. Furthermore, existing methods typically require 4-8 or even more LED beads on each emission surface, while this LED light source structure requires only one 202 LED bead. The simple and efficient structure significantly reduces power consumption and heat generation, resulting in high heat dissipation efficiency and ideal heat dissipation.

[0024] Reference Figures 4 to 9This invention proposes another embodiment of a novel LED light source structure. The LED light source structure is the same as the structure in the above embodiment, but it also includes a structure that can switch between high beam and low beam effects. The LED light source structure further includes a magnet 206 sleeved outside the light guide column portion 204 and located between the light guide base portion 203 and the guide post 205; an iron tube 207 sleeved outside the guide post 205 and located at the front end of the magnet 206; and an outer edge 208 at the front end of the iron tube 207. The LED light source structure also includes a coil 209 sleeved outside the iron tube 207 and located between the outer edge 208 and the magnet 206; and a reset component 210 clamped between the magnet 206 and the light source substrate 201 and serving a reset function. The light guide column, guide post 205, and magnet 206 are fixed structures combined into a synchronously moving structure, which can move back and forth along the iron tube 207. There is no relative movement between the light guide column, guide post 205, and magnet 206; all three move synchronously. The reset component 210 uses a reset spring.

[0025] When coil 209 is de-energized, the iron pipe 207 and magnet 206 attract each other due to their similar poles, creating a magnetic attraction that keeps magnet 206 pressed against the iron pipe 207. When coil 209 is energized, an electromagnetic force is generated between coil 209 and iron pipe 207 due to electromagnetic reaction. This electromagnetic force is greater than the magnetic attraction, and the electromagnetic force and magnet 206 repel each other, causing the synchronous moving structure to move backward. The exposed portion of the light guide column shortens, thus increasing the distance between the light guide column and the light-transmitting cover, resulting in a high beam effect. When coil 209 is de-energized, the electromagnetic force disappears, and the magnetic attraction between iron pipe 207 and magnet 206 comes into play. Simultaneously, the reset component 210 exerts a spring force on magnet 206. Under the action of the magnetic attraction and the spring force, magnet 206 drives the entire synchronous moving structure forward, lengthening the exposed portion of the light guide column. This reduces the distance between the light guide column and the light-transmitting cover, resulting in a low beam effect. This simple and rational structure allows for switching between high beam and low beam, while also effectively changing the beam pattern. This simple and rational structure effectively simplifies the manufacturing process and reduces production costs.

[0026] The lamp body also includes a drive unit 103 mounted on the heat sink 101 and a power plug 104 mounted on the heat sink 101 and electrically connected to the drive unit 103. The drive unit 103 is electrically connected to the LED light source structure and the coil 209.

[0027] The thermally conductive chuck 102 is made of thermally conductive metal, and the light source substrate 201 is tightly attached to the thermally conductive chuck 102. The thermally conductive chuck 102 and the heat sink 101 are connected and fixed by screws or other means. The heat generated by the LED beads 202 is quickly and promptly conducted to the thermally conductive chuck 102 through the light source substrate 201, and then quickly transferred to the heat sink 101. This timely and rapid heat transfer results in a short thermal conduction distance, high heat dissipation efficiency, and ideal heat dissipation effect.

[0028] This invention realizes a new type of LED light source structure with simple and reasonable structure, novel light distribution method, changeable light emission point, 360-degree uniform light emission, effectively reducing the number of LED beads, thereby reducing power and heat generation, and the heat dissipation structure has a short thermal conduction distance, high heat dissipation efficiency, and ideal heat dissipation effect. It also effectively simplifies the processing and production process and reduces production costs.

[0029] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A novel LED light source structure, characterized in that, The lamp body, mounted on the vehicle headlight, includes a heat sink and a heat-conducting chuck mounted on the heat sink. The headlight has a light-transmitting cover. The LED light source structure is mounted on the heat-conducting chuck and located behind the light-transmitting cover. The LED light source structure includes a light source substrate mounted on the front face of the heat-conducting chuck, LED beads on the light source substrate, a light guide column mounted on the heat-conducting chuck and located in front of the LED beads, and a guide column mounted on the heat-conducting chuck and fixed outside the light guide column. The light guide column includes a light guide base and a light guide column body located at the front end of the light guide base. The light guide column is made of light-conducting material and is designed as a solid structure to play the role of overall light guiding. The top of the light guide column is exposed outside the guide column. The inner surface of the guide column is designed as a reflective surface to reflect light and enhance the light intensity. The light emitted by the LED beads shines on the light guide column, causing the entire light guide column to emit light outward. The light emitted by the light guide column is enhanced after being reflected by the inner surface of the guide column and finally shines outward from the top of the light guide column. The LED light source structure also includes a magnet sleeved outside the light guide column and located between the light guide base and the guide column, an iron tube sleeved outside the guide column and located at the front end of the magnet, the front end of the iron tube having an outer edge, the LED light source structure also includes a coil sleeved outside the iron tube and located between the outer edge and the magnet, and a reset component clamped between the magnet and the light source substrate and playing a reset role, the light guide column, the guide column and the magnet are fixed structures and combined into a synchronous moving structure, the synchronous moving structure can move back and forth along the iron tube; When the coil is de-energized, the iron pipe and the magnet are attracted by the same poles, which creates a magnetic attraction that makes the magnet stick tightly to the iron pipe. When the coil is energized, an electromagnetic force is generated between the coil and the iron pipe due to electromagnetic reaction. The electromagnetic force is greater than the magnetic attraction. The electromagnetic force and the like poles of the magnet repel each other, causing the synchronous moving structure to move backward, thereby increasing the distance between the light guide column and the light-transmitting cover, thus forming the high beam effect. When the coil is de-energized, the electromagnetic force disappears, and the magnetic attraction between the iron pipe and the magnet comes into play. At the same time, the reset component generates a spring force on the magnet. Under the action of the magnetic attraction and the spring force, the magnet drives the entire synchronous moving structure to move forward, thereby reducing the distance between the light guide column and the light-transmitting cover and thus creating a low beam effect.

2. The novel LED light source structure according to claim 1, characterized in that, The reset component uses a reset spring.

3. A novel LED light source structure according to claim 1 or 2, characterized in that, The lamp body also includes a driver unit mounted on the heat sink, a power plug mounted on the heat sink and electrically connected to the driver unit, and the driver unit is electrically connected to the LED light source structure and coil.

4. The novel LED light source structure according to claim 3, characterized in that, The thermally conductive chuck is made of thermally conductive metal.

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