Light-emitting diode (LED) bulb lamp capable of adjusting illumination range of light source

Abstract

The invention relates to the technical field of lighting equipment, discloses an LED bulb lamp capable of adjusting the illumination range of a light source, and aims to solve the problem that the illumination range of an existing LED bulb lamp is fixed and is difficult to adapt to diversified lighting requirements in different scenes. The LED bulb lamp is mainly composed of an LED lamp holder, a dimming assembly and a transparent lampshade, and the dimming assembly is arranged between the LED lamp holder and the transparent lampshade and is a core component for adjusting the illumination range; the dimming assembly comprises a dimming cover, multiple sets of dimming plates, an adjusting piece, multiple sets of electromagnetic devices, multiple sets of magnetic driving pieces and a PLC, and the core adjusting principle of the dimming assembly is that the PLC controls the electromagnetic devices to generate magnetic force attracted or repelled with the magnetic driving pieces by adjusting the direction of output current, the adjusting piece is driven to rotate along a guide structure, and the dimming plate is driven to rotate along the guide structure. Therefore, the stepless precise adjustment of the illumination range is realized, the stepless adjustment of the illumination range can be realized, and the illumination requirements of different scenes can be met.

Description

Technical Field

[0001] This invention relates to the field of lighting equipment technology, and in particular to an LED bulb with an adjustable light source illumination range. Background Technology

[0002] With the advancement of global energy conservation and emission reduction policies and the rapid iteration of lighting technologies, LED (light-emitting diode) lighting equipment, with its core advantages such as low energy consumption, long lifespan, environmental friendliness, and fast start-up speed, has gradually and comprehensively replaced traditional incandescent and fluorescent lamps. It is widely used in various scenarios including home lighting, commercial lighting (shopping malls, hotels, supermarkets), office lighting, and public facility lighting (corridors, garages, roads), becoming the mainstream product in the current lighting industry. Among them, LED bulbs, due to their simple structure, convenient installation, and compatibility with traditional lamp holders, occupy a large share of the LED lighting market, and their market demand continues to grow. Furthermore, users' requirements for personalized and intelligent lighting performance are also increasing.

[0003] Currently, most LED bulbs on the market have a fixed illumination range designed at the factory. Once their optical structure is formed, it cannot be adjusted, making it difficult to adapt to diverse lighting needs in different scenarios. Specifically, in home settings, large spaces such as living rooms and dining rooms require wide-angle, uniform lighting to achieve bright coverage of the entire space; while scenarios such as reading in studies, getting up at night in bedrooms, and bedside lighting require narrow-angle, focused lighting to avoid excessive light dispersion affecting visual comfort or causing light pollution; in commercial settings, product display areas require focused lighting to highlight product details and improve display effects, while public passageways require wide-area lighting to ensure passage safety. LED bulbs with fixed illumination ranges often require users to purchase individual models for different scenarios. Therefore, it is necessary to develop an LED bulb with an adjustable illumination range. Summary of the Invention

[0004] In view of the above-mentioned problems in the existing technology, the purpose of the present invention is to provide an LED bulb with adjustable light source illumination range, which achieves precise and stable adjustment of illumination range through electromagnetic drive combined with mechanical transmission structure, and adapts to the lighting needs of multiple scenarios.

[0005] This invention is achieved using the following technical solution: an LED bulb lamp with adjustable light source illumination range, comprising an LED lamp holder, a dimming component, and a transparent lamp cover, the three being coaxially and detachably assembled to form a complete bulb lamp structure; the dimming component is installed between the LED lamp holder and the transparent lamp cover, and is used to adjust the illumination range of the LED lamp holder; The dimming assembly includes a dimming cover, multiple dimming plates, adjustment components, multiple electromagnetics, multiple magnetic drive components, and a PLC controller. Multiple sets of dimming plates are rotatably mounted at the bottom of the dimming cover cavity, and the adjusting component is mounted at the bottom of the dimming cover cavity and rotatably connected to the multiple sets of dimming plates. Multiple sets of the electromagnets are fixed on the top of the dimming cover cavity and connected in series. Multiple sets of the magnetic drive components are assembled on the top of the adjustment component. The PLC controller is fixed on the top of the dimming cover, and the electromagnets are electrically connected to the PLC controller. The PLC controller can adjust the direction of the output current to control the electromagnet to generate a magnetic force that attracts or repels the magnetic drive, thereby driving the magnetic drive to rotate the adjustment component, which in turn causes multiple dimming plates to expand or contract, thus achieving adjustment of the illumination range.

[0006] As a further improvement to the above solution, the dimming cover is in the form of an annular cylindrical structure; an annular support plate is integrally formed in the middle of the inner cavity of the dimming cover, which divides the inner cavity of the dimming cover into an upper driving cavity and a lower transmission cavity; the upper end of the inner cavity of the dimming cover is provided with an internal thread, and the lower outer end is provided with an external thread, which are respectively adapted to the external thread of the LED lamp holder and the internal thread of the transparent lamp cover.

[0007] As a further improvement to the above solution, the annular support plate is provided with multiple sets of arc-shaped guide grooves evenly distributed along the circumference to provide guidance for the rotation of the adjusting component; the bottom of the annular support plate is uniformly and integrally formed with multiple sets of positioning shafts along the circumference, and the number of positioning shafts is the same as the number of dimming plates. The bottom end of the positioning shaft is provided with external threads and a limit nut is installed.

[0008] As a further improvement to the above solution, the dimming plate is provided with a shaft hole that matches the positioning shaft rod, and is rotatably installed by fitting it onto the positioning shaft rod through the shaft hole; the rotation angle range of the dimming plate is 0°-90°, where 0° is the fully retracted state and 90° is the fully extended state.

[0009] As a further improvement to the above solution, the adjusting component includes an adjusting ring, multiple sets of limiting slide rods, and multiple sets of arc-shaped pull rods; the multiple sets of limiting slide rods are integrally formed on the top of the adjusting ring, can pass through the arc-shaped guide groove and slide along it, and a limiting sleeve is installed on the outer wall of the limiting slide rod; one end of the multiple sets of arc-shaped pull rods is rotatably connected to the bottom of the adjusting ring, and the other end is rotatably connected to the upper end of the dimming plate.

[0010] As a further improvement to the above solution, the magnetic drive component includes a fixed block and a permanent magnet ring; the fixed block has a vertically formed fixing groove inside that matches the top end of the limiting slide rod, and is fitted onto the top end of the limiting slide rod through the fixing groove; the permanent magnet ring is bonded to the side wall of the fixed block, and its magnetic pole direction corresponds to the magnetic pole direction of the electromagnet.

[0011] As a further improvement to the above solution, the PLC controller adopts a micro PLC module, whose input terminal is electrically connected to the drive power module in the LED lamp holder, and can also be connected to an external control switch or a wireless communication module; the wireless communication module is a Bluetooth module or a WiFi module, used to realize remote control.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention adopts a coaxial detachable structure of "LED lamp holder + core dimming component + transparent lamp cover". Taking the dimming component as the core breakthrough point, it abandons the traditional mechanical manual adjustment and motor drive method and adopts a combination of "electromagnetic drive + PLC precise control". The PLC controller adjusts the current direction to drive the dimming plate to unfold / retract smoothly, which can realize stepless adjustment of the illumination range. The adjustment angle range is 0°-90°, which can adapt to the lighting needs of different scenarios. The present invention features an integrated design of all components, and the dimming component is compact and can be directly adapted to the size and specifications of traditional LED bulbs. There is no need to modify the lamp holder installation structure. It can be directly assembled with the LED lamp holder and transparent lamp cover by threads, without taking up extra space. It is also easy to disassemble, which facilitates maintenance and replacement of components. This invention uses electromagnetic drive to replace traditional motor drive, which has a simple structure and low failure rate. At the same time, the core components are made of high temperature and corrosion resistant materials, and limit structures are set to prevent excessive wear or displacement of the components. Attached Figure Description

[0013] Figure 1 This is a top-view three-dimensional perspective view of the LED bulb lamp with adjustable light source illumination range according to the present invention. Figure 2 This is a three-dimensional view of the LED bulb lamp with adjustable light source illumination range of the present invention from an upward viewing direction; Figure 3 This is a top-view three-dimensional perspective view of the dimming component of the LED bulb lamp with adjustable light source illumination range according to the present invention. Figure 4 This is a three-dimensional perspective view of the dimming component of the LED bulb lamp with adjustable light source illumination range according to the present invention, viewed from below. Figure 5 This is a top-view three-dimensional view of the dimming cover of the LED bulb lamp with adjustable light source illumination range according to the present invention. Figure 6 This is a three-dimensional view of the dimming cover of the LED bulb lamp with adjustable light source illumination range according to the present invention, viewed from below. Figure 7 This is a three-dimensional top-view view of the adjustment component of the adjustable LED bulb lamp with adjustable light source illumination range according to the present invention. Figure 8This is a three-dimensional perspective view of the adjusting component of the adjustable LED bulb lamp with adjustable light source illumination range according to the present invention, viewed from below. Figure 9 This is a three-dimensional representation of the magnetic drive component of the LED bulb lamp with adjustable light source illumination range according to the present invention.

[0014] Explanation of key symbols: 1. LED lamp holder; 2. Dimming assembly; 21. Dimming cover; 211. Annular support plate; 212. Arc-shaped guide groove; 213. Positioning shaft; 22. Dimming plate; 23. Adjusting component; 231. Adjusting ring; 232. Limiting slide bar; 233. Arc-shaped pull rod; 24. Electromagnet; 25. Magnetic drive component; 251. Fixing block; 252. Permanent magnet ring; 253. Fixing groove; 26. PLC controller; 3. Transparent lamp cover. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0016] Obviously, the described embodiments are only a part of the embodiments of this disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0017] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0018] To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted.

[0019] Please combine Figure 1-9As shown in the figure, an adjustable LED bulb lamp with adjustable light source illumination range provided by an embodiment of the present invention includes an LED lamp holder 1, a dimming component 2, and a transparent lampshade 3, which are coaxially assembled to form a complete bulb lamp structure. The transparent lampshade 3 is made of high light transmittance PC (polycarbonate) material or glass material. The upper inner side of the transparent lampshade 3 is provided with an internal thread, which is adapted to the lower external thread of the dimming component 2 to achieve a sealed assembly with the dimming component 2, and at the same time plays a role in dustproofing, waterproofing, and protecting the internal structure. The LED lamp holder 1 serves as the mounting base and power supply carrier of the bulb lamp (compatible with traditional E27 / E26 lamp holders), and its interior integrates an LED light-emitting module. The LED lamp holder 1 has an external thread on its lower outer side, which matches the internal thread on its upper end, facilitating detachable connection between the two. Existing LED bulbs often have a fixed illumination range, making it difficult to adapt to the lighting needs of different scenarios—for example, a family living room requires large-area uniform lighting, while a study or bedroom requires small-area focused lighting or soft localized lighting; in commercial spaces, focused lighting is needed to highlight exhibits when displaying goods, while a wider illumination range is needed to cover the entire area during routine inspections. The dimming component 2, mounted between the LED lamp holder 1 and the transparent lampshade 3, is the core component for adjusting the illumination range. Figure 3-4 As shown, the dimming assembly 2 includes a dimming cover 21, multiple dimming plates 22, an adjustment component 23, multiple electromagnetics 24, multiple magnetic drive components 25, and a PLC controller 26. like Figure 5-6 As shown, the dimming cover 21 is integrally injection molded from high-strength, high-temperature resistant ABS engineering plastic, and has an overall annular cylindrical structure. An annular support plate 211 is integrally molded in the center of its inner cavity, dividing the inner cavity of the dimming cover 21 into an upper driving cavity and a lower transmission cavity. The upper driving cavity is used to install the electromagnet 24 and the PLC controller 26, while the lower transmission cavity is used to install the dimming plate 22 and the adjusting component 23, providing stable installation support and protection for each component. The upper end of the inner cavity of the dimming cover 21 is provided with an internal thread, and the lower end of the outer side is provided with an external thread, which respectively matches the upper internal thread of the transparent lampshade 3 and the lower external thread of the LED lamp holder 1, enabling the three components to be detachable. Sealed connection; multiple sets of arc-shaped guide grooves 212 are evenly formed along the circumference of the annular support plate 211. The curvature of the arc-shaped guide grooves 212 is designed according to the maximum unfolding angle of the dimming plate 22 (preferably 30°-60°) to provide precise guidance for the rotation of the adjusting component 23; multiple sets of positioning shafts 213 are integrally formed along the circumference of the bottom of the annular support plate 211. The number of positioning shafts 213 is the same as the number of dimming plates 22. As the rotation axis of the dimming plate 22, the bottom end of the positioning shaft 213 is provided with external thread, and a limit nut is installed through the thread to axially limit the dimming plate 22 and prevent axial displacement during the rotation of the dimming plate 22; The dimming plate 22 is made of lightweight, high-reflectivity aluminum alloy or PC material. Multiple dimming plates 22 are evenly distributed around the dimming cover 21. Each dimming plate 22 has a shaft hole that matches the positioning shaft 213. It is fitted onto the positioning shaft 213 through the shaft hole, so that it can be rotatably installed. The upper end of the dimming plate 22 is rotatably connected to the adjusting component 23, and the lower end extends to the LED light-emitting module near the LED lamp holder 1. Its rotation angle range is 0°-90° (0° is the fully retracted state, and 90° is the fully extended state). By rotating, the light emitted by the LED light-emitting module can be blocked or avoided, thereby adjusting the illumination range. Adjustment component 23 serves as a transmission component connecting magnetic drive component 25 and dimming plate 22, such as... Figure 7-8 As shown, the adjusting component 23 includes an adjusting ring 231, multiple sets of limiting slide rods 232, and multiple sets of arc-shaped pull rods 233, which are integrally formed or fixed as a whole by welding or threaded connection. The adjusting ring 231 has a ring structure and is horizontally set along the lower part of the annular support plate 211, coaxial with the dimming cover 21. The multiple sets of limiting slide rods 232 are evenly distributed along the circumference of the adjusting ring 231 and integrally formed on the top of the adjusting ring 231. The diameter of the limiting slide rod 232 is adapted to the width of the arc-shaped guide groove 212, and can pass through the arc-shaped guide groove 212 and slide along the inner cavity of the arc-shaped guide groove 212. The outer wall of the limiting slide rod 232 is provided with external threads, and a limiting sleeve is installed by the threads. The limiting sleeve is located above the annular support plate 211 and cooperates with the adjusting ring 231 to achieve the adjustment of the adjusting ring 231. The axial limiting of the adjusting component 23 ensures that the adjusting component 23 can only rotate circumferentially along the arc-shaped guide groove 212 and does not move axially. The top of the limiting slide rod 232 adopts a semi-circular design. This semi-circular structure is located above the limiting sleeve and is used for the assembly of the magnetic drive component 25. Multiple sets of arc-shaped pull rods 233 are evenly distributed along the circumference of the adjusting ring 231, and the number is consistent with that of the dimming plate 22. One end of the arc-shaped pull rod 233 is rotatably mounted on the bottom of the adjusting ring 231 through a hinge or pin, and the other end is rotatably connected to the upper end of the dimming plate 22 through a hinge or pin. The curvature of the arc-shaped pull rod 233 is adapted to the rotation trajectory of the dimming plate 22, ensuring that when the adjusting ring 231 rotates, the dimming plate 22 can be smoothly driven to rotate around the positioning shaft 213 through the arc-shaped pull rod 233. The electromagnet 24 adopts a miniature electromagnetic coil structure. Multiple sets of electromagnets 24 are evenly distributed along the circumference of the dimming cover 21, and their number is the same as that of the magnetic drive component 25. They are fixed to the top of the annular support plate 211 by screws and are located inside the drive cavity. The multiple sets of electromagnets 24 are connected in series. Their input terminals are electrically connected to the output terminals of the PLC controller 26 through wires. They can receive the current signal output by the PLC controller 26 and generate a corresponding magnetic force (attracting or repelling the magnetic drive component 25) according to the direction of the current. like Figure 9As shown, the magnetic drive component 25 is correspondingly arranged with the electromagnet 24. The magnetic drive component 25 includes a fixed block 251 and a permanent magnet ring 252. The fixed block 251 is made of high-temperature resistant engineering plastic, and its interior has a vertically opened fixing groove 253 that matches the semi-circular structure at the top of the limiting slide rod 232. The fixing groove 253 is fitted onto the top of the limiting slide rod 232 to achieve synchronous movement with the adjusting component 23. The permanent magnet ring 252 is made of high-strength neodymium iron boron permanent magnet and is bonded to the side wall of the fixed block 251 with a high-temperature resistant adhesive. Its magnetic pole direction is fixed and corresponds to the magnetic pole direction of the electromagnet 24. When the electromagnet 24 is energized and generates magnetic force, it can drive the permanent magnet ring 252 to slide (closer to or away from the electromagnet 24) under the action of magnetic force, thereby driving the adjusting component 23 to rotate along the arc-shaped guide groove 212. The PLC controller 26 uses a micro PLC module (preferably S7-200 SMART), which is glued to the top inner side of the annular support plate 211 and located at the center of the drive cavity. Its input terminal is electrically connected to the drive power module in the LED lamp holder 1 through wires to receive power. It can also be connected to an external control switch or wireless communication module (such as Bluetooth or WiFi module) to realize manual or remote control. The output terminal of the PLC controller 26 is electrically connected to the electromagnet 24. It can adjust the direction of the output current according to the control signal, thereby controlling the direction of the magnetic force generated by the electromagnet 24 to realize the expansion or contraction of the dimming plate 22. The principle of adjusting the illumination range in this solution is as follows: When it is necessary to expand the illumination range, the PLC controller 26 receives a control signal and supplies a positive current to the electromagnet 24. The electromagnet 24 generates a magnetic force that repels the permanent magnet ring 252 of the magnetic drive component 25. Under the action of the repulsive force, the magnetic drive component 25 drives the fixed block 251 to slide away from the electromagnet 24 along the limiting slide bar 232. Since the fixed block 251 is fixedly connected to the limiting slide bar 232, it drives the limiting slide bar 232 to rotate circumferentially along the arc-shaped guide groove 212. The limiting slide bar 232 drives the adjusting ring 231 to rotate synchronously. The adjusting ring 231 pulls the dimming plate 22 outward around the positioning shaft 213 through the arc-shaped pull rod 233, reducing the obstruction of the light from the LED light-emitting module, thereby expanding the illumination range. When it is necessary to reduce the illumination range, the PLC controller 26 supplies a reverse current to the electromagnet 24. The electromagnet 24 generates a magnetic force that attracts the permanent magnet ring 252. Under the action of the attraction, the magnetic drive 25 drives the fixed block 251 to slide closer to the electromagnet 24, which in turn drives the limit slide rod 232 and the adjusting ring 231 to rotate in the opposite direction. The adjusting ring 231 pushes the dimming plate 22 to retract inward around the positioning shaft 213 through the arc-shaped pull rod 233, increasing the blocking of light and thus reducing the illumination range. When it is necessary to maintain the current illumination range, the PLC controller 26 stops supplying current to the electromagnet 24. The electromagnet 24 loses its magnetic force, and the magnetic drive 25 remains stable under its own weight and the weight of the dimming plate 22. The dimming plate 22 maintains its current angle.

[0020] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An LED bulb lamp with adjustable light source illumination range, comprising an LED lamp holder (1), a dimming component (2) and a transparent lamp cover (3), the three being coaxially and detachably assembled to form a complete bulb lamp structure; the dimming component (2) is installed between the LED lamp holder (1) and the transparent lamp cover (3) for adjusting the illumination range of the LED lamp holder (1); The dimming assembly (2) includes a dimming cover (21), multiple dimming plates (22), an adjustment component (23), multiple electromagnetics (24), multiple magnetic drive components (25), and a PLC controller (26). Multiple dimming plates (22) are rotatably mounted at the bottom of the inner cavity of the dimming cover (21), and the adjusting member (23) is mounted at the bottom of the inner cavity of the dimming cover (21) and rotatably connected to the multiple dimming plates (22); Multiple sets of the electromagnetic devices (24) are fixed on the top of the inner cavity of the dimming cover (21) and connected in series. Multiple sets of the magnetic drive components (25) are assembled on the top of the adjustment component (23). The PLC controller (26) is fixed inside the dimming cover (21), and the electromagnetic devices (24) are electrically connected to the PLC controller (26). The PLC controller (26) can adjust the direction of the output current to control the electromagnet (24) to generate a magnetic force that attracts or repels the magnetic drive (25), drive the magnetic drive (25) to drive the adjustment component (23) to rotate, and then drive multiple dimming plates (22) to expand or contract, thereby realizing the adjustment of the illumination range.

2. The LED bulb with adjustable light source illumination range as described in claim 1, characterized in that, The dimming cover (21) has an overall annular cylindrical structure; an annular support plate (211) is integrally formed in the middle of the inner cavity of the dimming cover (21), which divides the inner cavity of the dimming cover (21) into an upper driving cavity and a lower transmission cavity; the upper end of the inner cavity of the dimming cover (21) is provided with an internal thread, and the lower end of the outer side is provided with an external thread, which are adapted to the external thread of the LED lamp holder (1) and the internal thread of the transparent lamp cover (3), respectively.

3. The LED bulb with adjustable light source illumination range as described in claim 2, characterized in that, The annular support plate (211) has multiple sets of arc-shaped guide grooves (212) evenly formed along the circumference to provide guidance for the rotation of the adjusting component (23); the bottom of the annular support plate (211) has multiple sets of positioning shafts (213) evenly and integrally formed along the circumference, and the number of positioning shafts (213) is the same as the number of dimming plates (22). The bottom end of the positioning shafts (213) is provided with external threads and a limit nut is installed.

4. The LED bulb with adjustable light source illumination range as described in claim 3, characterized in that, The dimming plate (22) has a shaft hole that matches the positioning shaft (213), and it is rotatably installed by being sleeved on the positioning shaft (213) through the shaft hole; the rotation angle range of the dimming plate (22) is 0°-90°, where 0° is the fully retracted state and 90° is the fully extended state.

5. The LED bulb with adjustable light source illumination range as described in claim 3, characterized in that, The adjusting component (23) includes an adjusting ring (231), multiple sets of limiting slide rods (232), and multiple sets of arc-shaped pull rods (233). The multiple sets of limiting slide rods (232) are integrally formed on the top of the adjusting ring (231), can pass through the arc-shaped guide groove (212) and slide along it, and a limiting sleeve is installed on the outer wall of the limiting slide rod (232). One end of the multiple sets of arc-shaped pull rods (233) is rotatably connected to the bottom of the adjusting ring (231), and the other end is rotatably connected to the upper end of the dimming plate (22).

6. The LED bulb with adjustable light source illumination range as described in claim 1, characterized in that, The magnetic drive component (25) includes a fixing block (251) and a permanent magnet ring (252); the fixing block (251) has a vertically opened fixing groove (253) that is adapted to the top of the limiting slide rod (232), and is sleeved on the top of the limiting slide rod (232) through the fixing groove (253); the permanent magnet ring (252) is bonded to the side wall of the fixing block (251), and its magnetic pole direction corresponds to the magnetic pole direction of the electromagnet (24).

7. The LED bulb with adjustable light source illumination range as described in claim 1, characterized in that, The PLC controller (26) adopts a micro PLC module, whose input terminal is electrically connected to the drive power module in the LED lamp holder (1), and can also be connected to an external control switch or wireless communication module; the wireless communication module is a Bluetooth module or a WiFi module, used to realize remote control.

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