LED lamp capable of rotatably dimming

Abstract

The utility model discloses an LED lamp capable of rotatably dimming. The LED lamp comprises a lamp holder, the LED luminous source is arranged on the lamp holder; the lampshade is arranged on the lamp holder and covers the LED luminous source, and the lampshade can rotate relative to the lamp holder; and the adjusting circuit unit is electrically connected with the LED light emitting source, and the adjusting circuit unit is configured to detect the rotating motion of the lampshade relative to the lamp holder, generate a rotating signal and adjust the light emitting parameters of the LED light emitting source according to the rotating signal. The brightness, color temperature, color and other light-emitting parameters of the LED lamp can be adjusted by rotating the lampshade so as to adapt to families or movies and televisions and other scenes needing different light-emitting parameters, the adjusting mode is novel and personalized, and user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, and in particular to a rotatable and dimmable LED lamp. Background Technology

[0002] Currently, the brightness and mode control of LED lights in film and television lighting are generally achieved through knobs, buttons, or wireless connections via an app. Overall, the control methods are relatively simple and lack innovation. In contrast, traditional tungsten filament bulbs operate with a fixed, non-adjustable brightness.

[0003] Therefore, existing technologies need to be improved. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rotatable dimming LED lamp, which aims to adjust the light emission parameters of the LED lamp by rotating the lampshade to adapt to different light emission parameter scenarios such as home or movie theater. Its adjustment method is novel and personalized, and enhances the user experience.

[0005] To achieve the above objectives, this utility model proposes a rotatable dimming LED lamp, which includes: a lamp holder;

[0006] An LED light source is disposed on the lamp holder;

[0007] A lampshade is disposed on the lamp holder and covers the LED light source; the lampshade can rotate relative to the lamp holder.

[0008] An adjustment circuit unit is electrically connected to the LED light source. The adjustment circuit unit is configured to detect the rotational movement of the lampshade relative to the lamp holder and generate a rotation signal, and adjust the luminous parameters of the LED light source according to the rotation signal.

[0009] In some embodiments, the adjustment circuit unit includes a control circuit and a rotation detector electrically connected to the control circuit, the control circuit also being electrically connected to the LED light source;

[0010] The rotation detector detects the rotational movement of the lampshade relative to the lamp holder and generates a rotation signal;

[0011] The control circuit adjusts the luminous parameters of the LED light source according to the rotation signal.

[0012] In some embodiments, the system further includes a base, with the LED light source and the lamp holder connected to its two ends respectively, and the lampshade rotatably mounted on the end of the base facing the LED light source.

[0013] In some embodiments, a retaining ring is also included, wherein the lampshade is rotatably connected to the retaining ring, and the retaining ring is fixed to the base.

[0014] In some embodiments, the lampshade includes a neck and a light-transmitting portion connected to the neck. The neck is rotatably engaged with the retaining ring. The neck has an opening at one end opposite to the light-transmitting portion, and the open end of the neck abuts against the base.

[0015] In some embodiments, the retaining ring includes an annular wall and a protrusion disposed on the inner side of the annular wall. An annular plate is disposed on the outer wall of the open end of the neck. The annular wall is sleeved on the outer side of the open end of the neck, and the protrusion abuts against the annular plate.

[0016] In some embodiments, the LED light source includes a light source frame and LED beads disposed on the light source frame, and the light source frame is connected to the base.

[0017] In some embodiments, the end of the base facing the retaining ring includes a first boss and a second boss protruding from the first boss, the retaining ring is inserted into the outer wall of the first boss, and the light source bracket is inserted into the outer wall of the second boss.

[0018] In some embodiments, the rotation detector includes a magnetic ring mounted on the inner wall of the opening end of the neck and an angle sensor mounted on the outer wall of the light source frame opposite to the magnetic ring.

[0019] In some embodiments, the rotation detector includes a magnetic plate and an angle sensor;

[0020] The lampshade is also provided with a suspension rod that passes through the light source frame axially. One end of the suspension rod is connected to the lampshade, and the other end of the suspension rod is connected to the magnetic plate. The angle sensor is installed on the base and is opposite to the magnetic plate.

[0021] In some embodiments, the base and the lamp holder are magnetically and detachably connected.

[0022] In some embodiments, the lamp holder is provided with a first magnetic attractor, a first polar conductive terminal, and a second polar conductive terminal at one end facing the base, and the base is provided with a second magnetic attractor, a first electrode, and a second electrode at one end facing the lamp holder. The first magnetic attractor and the second magnetic attractor are attracted to each other, the first polar conductive terminal abuts against the first electrode, and the second polar conductive terminal abuts against the second electrode.

[0023] It should be understood that, within the scope of this utility model, the above-mentioned technical features of this utility model and the technical features specifically described below (such as embodiments) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be described in detail here.

[0024] The beneficial effects of this utility model are:

[0025] This invention employs a rotatable structure between the lampshade and the lamp holder, and includes an adjustment circuit unit to detect the rotation signal during the lampshade's rotation. This allows for the adjustment of the LED light source's brightness, color, color temperature, and other luminous parameters based on the angle, speed, and direction of the rotation signal. In other words, when using this LED lamp, the user rotates the lampshade, causing the LED's luminous parameters to change. This method is novel and offers a better user experience compared to existing knob-based adjustment methods. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of a first embodiment of the rotatable dimming LED lamp of this utility model.

[0028] Figure 2 for Figure 1 Cross-sectional view of the structure.

[0029] Figure 3 for Figure 1 A schematic diagram of the structure.

[0030] Figure 4 This is a schematic diagram of the circuit composition of a first embodiment of the rotatable dimming LED lamp of this utility model.

[0031] Figure 5 for Figure 2 Enlarged diagram of point A in the middle.

[0032] Figure 6 This is a schematic diagram of the first distribution of magnetic poles on the magnetic ring in Example 1.

[0033] Figure 7 This is a schematic diagram of the second distribution of magnetic poles on the magnetic coil in Example 1.

[0034] Figure 8 This is a schematic diagram of the magnetically connected lamp holder of the rotatable and dimmable LED lamp, as shown in Embodiment 1.

[0035] Figure 9 This is a schematic diagram of the structure of Embodiment 2 of the rotatable dimming LED lamp of this utility model.

[0036] Figure 10 This is a schematic diagram of the distribution of magnetic poles on the magnetic plate in Example 2.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100-LED lamp, 10-lamp holder, 11-thread, 12-first magnetic chuck, 13-first polarity conductive terminal, 14-second polarity conductive terminal, 20-LED light source, 21-light source frame, 22-LED lamp bead, 30-lamp cover, 301-neck, 302-light-transmitting part, 31-open end, 32-ring plate, 101-adjustment circuit unit, 40-rotation detector, 41-magnetic ring, 42-angle sensor, 43-magnetic plate, 50-control circuit, 51-main controller, 52-drive circuit, 60-base, 61-first boss, 62-second boss, 63-second magnetic chuck, 64-first electrode, 65-second electrode, 70-ring, 71-ring wall, 72-protrusion, 80-hanging rod. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0042] Example 1, please refer to Figures 1 to 7 This utility model proposes a rotatable and dimmable LED lamp 100, comprising: a lamp holder 10, which is used to mount a lamp cover 30 and a light source. The lamp holder 10 is provided with conductive terminals for connecting an external power source and the light source, transmitting electrical energy from the external power source to the light source to emit light. The conductive terminals generally include a positive terminal and a negative terminal. The lamp holder 10 can be of various shapes; in this embodiment, such as... Figure 1As shown, the lamp holder 10 is in the shape of a lamp head with threads 11, and the lamp head with threads 11 can be installed by screwing. In this way, the rotatable dimming LED lamp 100 of this embodiment can be designed into a commonly used bulb shape. Preferably, the lamp holder 10 can adopt commonly used E27 / E14 / B22 screw connectors.

[0043] The LED lamp 100 in this embodiment also includes an LED light source 20, such as Figure 2 As shown, the LED light source 20 is disposed on the lamp holder 10 and electrically connected to the lamp holder 10, that is, the LED light source 20 is fixed on the lamp holder 10 and connected to the conductive terminals on the lamp holder 10. The LED light source 20 emits light through the LED beads thereon for illumination.

[0044] Specifically, such as Figure 2 As shown, the LED light source 20 in this embodiment includes a light source frame 21 and LED beads 22 disposed on the light source frame 21. The light source frame 21 is disposed above the lamp holder 10 and is used to mount the LED beads 22. The LED beads 22 emit light after being powered on. In this embodiment, the light source frame 21 is a hollow column, and the LED beads 22 are disposed on the outer wall of the columnar light source frame 21. In this embodiment, there can be multiple LED beads 22, which are respectively distributed on the left and right outer walls of the light source frame 21.

[0045] The LED lamp 100 in this embodiment also includes a lampshade 30, which is disposed on the lamp holder 10 and covers the LED light source 20. The lampshade 30 can rotate relative to the lamp holder 10. The lampshade 30 is made of a light-transmitting material to transmit light. The lampshade 30 can be a fully light-transmitting material, a soft-light material, or a colored light-transmitting lampshade. When a soft-light material is used, the light emitted by the light source can be softened. In addition, it can also compensate for the dark areas caused by the non-light-emitting parts inside the lampshade 30 to obtain a more uniform light emission effect. At the same time, the lampshade 30 protects the LED light source 20 inside the LED lamp 100. The lampshade 30 in this embodiment can be designed in the shape of a common light bulb housing, such as designed as... Figure 1 The lampshade 30 shown is a common bulb shape with a spherical upper end and a cylindrical lower end. In other embodiments, the shape of the lampshade 30 can be designed as square, star-shaped, polygonal, etc., according to actual needs. A special feature of this embodiment is that, during daily use, the lampshade 30 can rotate relative to the lamp holder 10. The light emission parameters of the LED lamp 100 can be adjusted by rotating the lampshade 30. These light emission parameters include brightness, color, and color temperature. In the prior art, after the LED lamp is installed, the lampshade 30 cannot rotate during use, and the light emission parameters cannot be adjusted.

[0046] like Figure 2As shown, in this embodiment, the lampshade 30 rotates within a 360-degree range in the horizontal plane around the longitudinal central axis of the light source holder 21 on the lamp holder 10. It can be understood that in other embodiments, the lampshade 30 can also rotate relative to the lamp holder 10 in other ways, such as oblique rotation or rotation in the vertical plane.

[0047] The rotating structure between the lampshade 30 and the lamp holder 10 of the LED lamp 100 of this utility model can adopt a threaded, magnetic, or slotted structure.

[0048] like Figure 4 As shown, the LED lamp 100 in this embodiment also includes an adjustment circuit unit 101, which is electrically connected to the LED light source 20. The adjustment circuit unit 101 is configured to detect the rotational movement of the lamp cover 30 relative to the lamp holder 10 and generate a rotation signal, and adjust the light emission parameters such as brightness, color, and color temperature of the LED light source 20 according to the rotation signal. The adjustment circuit unit 101 can be integrated on a single circuit board or divided into several independent circuit boards, and the adjustment circuit unit 101 can be disposed on the lamp holder 10.

[0049] Specifically, the adjustment circuit unit 101 in this embodiment includes a control circuit 50 and a rotation detector 40 electrically connected to the control circuit 50. The control circuit 50 is also electrically connected to the LED light source 20. The rotation detector 40 detects the rotational movement of the lamp cover 30 relative to the lamp holder 10 and generates a rotation signal. The control circuit 50 adjusts the light emission parameters of the LED light source 20 according to the rotation signal.

[0050] The rotation detector 40 of the LED lamp 100 in this embodiment is used to detect the rotational motion of the lampshade 30. The rotation detector 40 can detect the rotational motion and generate a corresponding identifiable electrical signal through the Hall effect, magnetoresistive effect, or capacitance change. This identifiable electrical signal is the rotation signal, which includes one or more signals such as angle, speed, and direction. The rotation detector 40 can be mounted on the lampshade 30, the lamp holder 10, or the light source bracket 21. Alternatively, the rotation detector 40 can be divided into two parts, one part mounted on the lampshade 30 and the other part mounted on the lamp holder 10 or the light source bracket 21.

[0051] like Figure 4 As shown, in this embodiment, the control circuit 50 of the LED lamp 100 is electrically connected to the rotation detector 40 and the LED light source 20. The control circuit 50 adjusts the light emission parameters of the LED light source 20 according to the rotation signal of the lamp cover 30 rotating relative to the lamp holder 10. The rotation signal is acquired by the rotation detector 40 and sent to the control circuit 50. The control circuit 50 then analyzes and processes the rotation signal to adjust the light emission parameters of the LED light source 20.

[0052] As one implementation method, such as Figure 4 As shown, the control circuit 50 of this embodiment includes a main controller 51 and a drive circuit 52. The main controller 51 is connected to the rotation detector 40 and the drive circuit 52. The output terminal of the drive circuit 52 is also connected to the LED light source 20. Specifically, the output terminal of the drive circuit 52 is connected to the LED beads 22 of the LED light source 20.

[0053] The main control unit 51 can be implemented using a microcontroller and its peripheral circuits. The driver circuit 52 can use PWM regulation to adjust the current, power, and other parameters of the LED beads 22 to achieve the adjustment of light emission parameters.

[0054] In one implementation, the LED lamp 100 of this embodiment can adjust one of its light emission parameters, such as brightness, according to a combination of one or more rotation signals:

[0055] 1) The main controller 51 acquires the angle and direction parameters from the rotation signal and combines the two for adjustment. For example, if the lampshade 30 is detected to be rotating clockwise while the angle is increasing, the brightness is gradually increased; if the lampshade 30 is detected to be rotating counterclockwise while the angle is decreasing, the brightness is gradually decreased.

[0056] 2) The main controller 51 obtains the direction parameters in the rotation signal and adjusts them in combination with the rotation duration. For example, if the lampshade 30 is detected to rotate clockwise, the brightness is gradually increased in a preset step during the rotation duration until the brightness is at its maximum. If it rotates counterclockwise, the brightness is reduced until it is at its darkest.

[0057] 3) The main controller 51 obtains the speed parameters in the rotation signal and adjusts them, such as changing the brightness adjustment speed by rotating the speed: specifically, the faster the rotation, the greater the brightness change, and the slower the rotation, the smaller the brightness change.

[0058] The brightness of the LED lamp 100 in this embodiment can also be adjusted using other parameters or other combinations of the rotation signal, which will not be listed here.

[0059] Similar to the brightness adjustment method described above, the LED lamp 100 in this embodiment can also adjust the color, color temperature, etc. of the LED lamp 100 according to one or more of the rotation signals.

[0060] Correspondingly, when adjusting the color of the LED lamp 100, the LED beads 22 on the LED light source 20 include at least two different colors of beads, such as at least two of red, blue and green beads, so that the color of the LED lamp 100 can be adjusted by rotating the lamp cover 30.

[0061] Correspondingly, when adjusting the color temperature of the LED lamp 100, the LED beads 22 on the LED light source 20 include at least two different color temperature beads, such as cool white light beads and warm white light beads, so that the color temperature of the LED lamp 100 can be adjusted by rotating the lamp cover 30.

[0062] In this embodiment, during use, the user can rotate the lampshade 30 of the LED lamp 100. The rotation detector 40 inside the LED lamp 100 can detect the rotation of the lampshade 30. The control circuit 50 inside the LED lamp 100 adjusts the brightness, color, color temperature and other light emission parameters of the LED light source 20 according to the rotation signals corresponding to the rotation of the lampshade 30, such as angle, speed, direction and duration. The adjustment method is novel and has a good user experience.

[0063] Please continue to refer to this. Figure 2 and Figure 3 Preferably, the LED lamp 100 in this embodiment further includes a base 60, with the LED light source 20 and the lamp holder 10 connected to its two ends respectively. A lampshade 30 is rotatably mounted on the end of the base 60 facing the LED light source 20. The base 60 allows the LED light source 20 to be mounted on the base 60 instead of directly on the lamp holder 10. This makes the LED light source 20 and the lamp holder 10 separate components, facilitating the assembly of the base 60, LED light source 20, and lampshade 30 into a single unit of the LED lamp 100. The lamp holder 10 becomes another separable component of the LED lamp 100, allowing for the replacement of different models of lamp holders 10. In this embodiment, the light source bracket 21 of the LED light source 20 is connected to the base 60, thus fixing the LED light source 20 to the base 60.

[0064] Preferably, the LED lamp 100 in this embodiment further includes a retaining ring 70, a bottom opening of the lampshade 30, and the retaining ring 70 is rotatably connected to the open end 31 of the lampshade 30. The retaining ring 70 is fixed to the base 60. In this embodiment, as... Figure 2 As shown, the retaining ring 70 is sleeved on the outside of the lampshade 30 and the base 60, and is used to snap the lampshade 30 onto the base 60. The retaining ring 70 is fixedly connected to the base 60, while the retaining ring 70 is movably connected to the bottom of the lampshade 30, that is, the lampshade 30 and the retaining ring 70 can rotate relative to each other.

[0065] refer to Figure 3 and Figure 5In this embodiment, the lampshade 30 includes a neck 301 and a light-transmitting portion 302 connected to the neck 301. The neck 301 is rotatably engaged with a retaining ring 70. The end of the neck 301 facing away from the light-transmitting portion 302 is open, and the open end 31 of the neck 301 abuts against the base 60. In this embodiment, the neck 301 is located at the lower end for connecting with the retaining ring 70 and the base 60, and the light-transmitting portion 302 is located at the upper end for transmitting illumination light. The rotatable engagement between the neck 301 and the retaining ring 70 can be a movable sleeve or other structure, so that the neck 301 and the retaining ring 70 will not separate, while allowing relative rotation.

[0066] In this embodiment, the neck 301 of the lampshade 30 has a circular cross-section, and the cross-sectional shape of the light-transmitting part 302 of the lampshade 30 can be circular, square, triangular, elliptical, polygonal, etc., and the cross-sectional area of ​​the light-transmitting part 302 can be larger than the cross-sectional area of ​​the neck 301. At the same time, the shape and area of ​​the cross-section of the light-transmitting part 302 can also vary with the height.

[0067] Specifically, such as Figure 3 and Figure 5 As shown, the retaining ring 70 includes an annular wall 71 and a protrusion 72 disposed on the inner side of the annular wall 71. An annular plate 32 is disposed on the outer wall of the opening end 31 of the lampshade neck 301. The annular wall 71 is fitted onto the outer side of the opening end 31 of the lampshade neck 301, and the protrusion 72 abuts against the annular plate 32. In this way, the bottom of the lampshade 30 can be fitted into the annular wall 71 of the retaining ring 70. The outer wall of the bottom of the lampshade neck 301 and the inner wall of the annular wall 71 of the retaining ring 70 are in clearance fit, and there is a gap between the two, so that the lampshade 30 can rotate relative to the retaining ring 70. In order to prevent the lampshade 30 from moving upward and falling out of the retaining ring 70, the protrusion 72 of the retaining ring 70 presses against the annular plate 32 of the lampshade 30. At the same time, the annular wall 71 of the retaining ring 70 is also interference-fitted with the base 60 to install the retaining ring 70 and the lampshade 30 on the base 60.

[0068] Furthermore, in this embodiment, the end of the base 60 facing the retaining ring includes a first boss 61 and a second boss 62 protruding from the first boss 61. The retaining ring 70 is inserted into the outer wall of the first boss 61, wherein the annular wall 71 of the retaining ring 70 is inserted into the outer wall of the first boss 61 with an interference fit, thereby fixing the retaining ring 70 to the base 60. The light source holder 21 is inserted into the outer wall of the second boss 62, and the inner wall of the hollow structure of the light source holder 21 is inserted into the outer wall of the second boss 62 with an interference fit, thereby fixing the LED light source 20 to the base 60. The double-layer boss at the upper end of the base 60 facilitates the quick installation of the light source holder 21 and the retaining ring 70.

[0069] In this embodiment, as Figure 2 and Figure 5As shown, the rotation detector 40 includes a magnetic ring 41 mounted on the inner wall of the opening end 31 of the lampshade neck 301, and an angle sensor 42 mounted on the outer wall of the light source frame 21 opposite to the magnetic ring 41. The magnetic ring 41 rotates with the lampshade 30, and the angle sensor 42 detects the change in the magnetic field during the rotation of the magnetic ring 41 and generates a corresponding electrical signal. This electrical signal is processed by the angle sensor 42 or directly sent to the main control 51 for processing to obtain the corresponding rotation angle parameters, direction parameters, speed parameters, etc.

[0070] Specifically, in this embodiment, a plurality of magnetic poles with opposite polarities are arranged circumferentially on the magnetic ring 41, and a plurality of angle sensors 42 are arranged circumferentially at intervals on the outer wall of the light source frame 21.

[0071] As a way, such as Figure 6 As shown, an N magnetic pole and an S magnetic pole are arranged in a ring on the magnetic ring 41. Four angle sensors 42 are arranged at 90-degree intervals in a ring on the outer wall of the light source frame 21. During the rotation of the magnetic ring 41, the four angle sensors 42 detect changes in the magnetic field and perform comprehensive processing. For example, the average value of the four detected values ​​is taken to obtain a stable electrical signal value, so as to improve the accuracy of detection.

[0072] Furthermore, as another way, such as Figure 7 As shown, the magnetic ring 41 has four N magnetic poles and four S magnetic poles arranged in a staggered circumferential direction. The outer wall of the light source frame 21 has four angle sensors 42 arranged at 90-degree intervals in a circumferential direction. Because there are more magnetic poles, the angle sensors 42 have a higher resolution for detecting rotation angles, which can further improve the detection accuracy and achieve more precise control of luminous parameters such as brightness, color, and color temperature.

[0073] In this embodiment, the angle sensor 32 in the rotation detector 30 can be a Hall effect angle sensor or a magnetoresistive angle sensor to detect changes in the magnetic field.

[0074] Preferably, such as Figure 8 As shown, in this embodiment, the base 60 of the LED lamp 100 is magnetically and detachably connected to the lamp holder 10. That is, the lamp holder 10 and the base 60 in this embodiment are detachable and can be quickly installed and removed by magnetic attraction, thereby realizing the quick separation and installation of the lamp holder 10 and the base 60, the LED light source 20, and the lamp cover 30, so as to facilitate the replacement of the base or the LED light source 20.

[0075] Specifically, refer to Figure 3The lamp holder 10 has a first magnetic accommodating element 12, a first polarity conductive terminal 13, and a second polarity conductive terminal 14 at one end facing the base 60. The base 60 has a second magnetic accommodating element 63, a first electrode 64, and a second electrode 65 at one end facing the lamp holder 10. The first magnetic accommodating element 12 and the second magnetic accommodating element 63 are attracted together. The first polarity conductive terminal 13 abuts against the first electrode 64, and the second polarity conductive terminal 14 abuts against the second electrode 65. The first electrode 64 and the second electrode 65 of the base 60 are also connected to a main control unit 51 (not shown).

[0076] In one embodiment, the first polarity conductive terminal 13 of the lamp holder 10 is connected to the positive terminal of the external power supply, and the second polarity conductive terminal 14 is connected to the negative terminal of the external power supply. When the upper end of the lamp holder 10 contacts the lower end of the base 60, the first magnetic suction member 12 of the lamp holder 10 and the second magnetic suction member 63 of the base 60 are attracted together, thereby fixing the lamp holder 10 and the base 60. At the same time as being attracted and fixed, the first polarity conductive terminal 13 of the lamp holder 10 abuts against the first electrode 64 of the base 60, and the second polarity conductive terminal 14 of the lamp holder 10 abuts against the second electrode 65 of the base 60, thereby connecting the external power supply to the base 60 and communicating with the main controller 51.

[0077] In this embodiment, the upper end of the lamp holder 10 and the lower end of the base 60 are provided with multiple slot structures, which are respectively used to install the first magnetic suction member 12, the first polar conductive terminal 13, the second polar conductive terminal 14, the second magnetic suction member 63, the first electrode 64, and the second electrode 65.

[0078] Preferably, both the first magnetic clasp 12 and the second magnetic clasp 63 are annular. On the one hand, after the lamp holder 10 and the base 60 are magnetically connected, the entire circumferential direction of the contact surface is subjected to attraction, so that the distribution of attraction force is relatively balanced and the attraction and fixation effect is better. On the other hand, when the lamp holder 10 and the base 60 are in contact, no matter how much the lamp holder 10 and the base 60 are rotated relative to each other in the contact plane, the first magnetic clasp 12 and the second magnetic clasp 63 are always in contact, so that the two are quickly attracted and fixed.

[0079] Meanwhile, in this embodiment, a second polarity conductive terminal 14 is provided at the middle of the upper end of the lamp holder 10, and a plurality of first polarity conductive terminals 13 are arranged circumferentially around the periphery. Correspondingly, a second electrode 65 is provided at the middle of the lower end of the base 60, and a ring-shaped first electrode 64 is arranged around the lower end of the base 60. In this way, when the lamp holder 10 and the base 60 are placed together, the lamp holder 10 and the base 60 can be placed at any angle within the contact plane, and their conductive terminals and electrodes can maintain contact without the need to specifically find the positioning and installation angle.

[0080] Example 2, as Figure 9As shown, this embodiment proposes a rotatable dimming LED lamp 100. The difference between this embodiment and the first embodiment is that the rotation detector 40 in the second embodiment includes a magnetic plate 43 and an angle sensor 42. The lamp cover 30 in the second embodiment is also provided with a hanging rod 80 that passes through the light source frame 21 axially. One end of the hanging rod 80 is connected to the lamp cover 30, and the other end of the hanging rod 80 is connected to the magnetic plate 43. The angle sensor 42 is mounted on the base 60 and is opposite to the magnetic plate 43.

[0081] In Embodiment 2, when the lampshade 30 rotates, the hanging rod 80 rotates accordingly, and the magnetic plate 43 at the lower end of the hanging rod 80 also rotates. However, the angle sensor 42, located below the magnetic plate 43 and fixed to the base 60, remains stationary. After sensing the change in the magnetic field during the rotation of the magnetic plate 43, the angle sensor 42 generates a rotation signal and sends it to the main controller 51 for processing. The main controller 51 adjusts the luminous parameters of the LED light source 20 based on this rotation signal. In this embodiment, as... Figure 10 As shown, the magnetic plate 43 has one N pole and one S pole distributed on it to form a complete magnetic field. It can be understood that in other embodiments, the magnetic plate 43 may also have multiple N poles and corresponding multiple S poles distributed on it.

[0082] Example 3 differs from Example 1 in that it adjusts the brightness, color temperature, and color of the LED lamp 100 using a combination method. Specifically, the adjustment method in Example 3 is as follows: during the first continuous angle change of the lampshade 30 (corresponding to a single rotation action by the user), the brightness of the lamp is adjusted; during the second angle change, the color of the lamp is adjusted; and during the third angle change, the color temperature of the lamp is adjusted.

[0083] The rotatable dimming LED lamp 100 of the above embodiment controls the brightness, and / or color, and / or color temperature of the LED lamp 100 by rotating the lampshade 30 and detecting its rotational movement, using parameters such as rotation angle, speed, direction, and duration. This personalized adjustment method adapts to lighting adjustments in scenarios such as film and television lighting. Meeting on-camera requirements and featuring a rotatable dimming structure similar to traditional incandescent bulb rotation, it expands the ways users can adjust the bulb's light output, enriching the product's usage environment and operation methods, and enhancing the user experience.

[0084] The above description is merely an example to clearly illustrate the present utility model and is not intended to limit the patent scope of the present utility model. It is impossible to exhaustively list all the embodiments here. All equivalent structural transformations made using the content of the technical solution of the present utility model under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A rotatable dimmable LED lamp, characterized in that, The application relates to a lamp, which comprises a lamp holder, an LED light source arranged on the lamp holder, a lampshade arranged on the lamp holder and covering the LED light source, the lampshade being rotatable relative to the lamp holder, an adjusting circuit unit electrically connected with the LED light source, the adjusting circuit unit being configured to detect the rotational movement of the lampshade relative to the lamp holder and generate a rotation signal, and adjust the light-emitting parameters of the LED light source according to the rotation signal. The adjusting circuit unit comprises a control circuit and a rotation detector electrically connected with the control circuit, the control circuit also being electrically connected with the LED light source. The rotation detector detects the rotational movement of the lampshade relative to the lamp holder and generates a rotation signal. The control circuit adjusts the light-emitting parameters of the LED light source according to the rotation signal. The lamp further comprises a base, two ends of the base being connected with the LED light source and the lamp holder respectively, and the lampshade being rotatably arranged on one end of the base facing the LED light source.

2. The rotatable dimmable LED lamp of claim 1, wherein, The lamp further comprises a clamping ring, the lampshade being rotatably connected with the clamping ring, and the clamping ring being fixed on the base. The lampshade comprises a neck portion and a light-transmitting portion connected with the neck portion, the neck portion being rotatably connected with the clamping ring, the neck portion being open at one end away from the light-transmitting portion, and the open end of the neck portion being in abutment with the base. The clamping ring comprises an annular wall and a protrusion arranged on the inner side of the annular wall, an annular plate being arranged on the outer wall of the open end of the neck portion, the annular wall being sleeved on the outer side of the open end of the neck portion, and the protrusion being in abutment with the annular plate.

3. The rotatable dimmable LED lamp of claim 2, wherein, The LED light source comprises a light source frame and LED lamp beads arranged on the light source frame, and the light source frame is connected with the base.

4. The rotatable dimmable LED lamp of claim 3, wherein, One end of the base facing the clamping ring comprises a first boss and a second boss protruding on the first boss, the clamping ring being inserted on the outer wall of the first boss, and the light source frame being inserted on the outer wall of the second boss.

5. The rotatable dimmable LED lamp of claim 4, wherein, The rotation detector comprises a magnetic ring arranged on the inner wall of the open end of the neck portion and an angle sensor arranged on the outer wall of the light source frame and opposite to the magnetic ring.

6. The rotatable dimmable LED lamp of claim 5, wherein, The rotation detector comprises a magnetic plate and an angle sensor.

7. The rotatable dimmable LED lamp of claim 5, wherein, The lampshade further comprises a suspender axially penetrating through the light source frame, one end of the suspender being connected with the lampshade, the other end of the suspender being connected with the magnetic plate, and the angle sensor being arranged on the base and opposite to the magnetic plate.

8. The rotatable dimmable LED lamp of claim 7, wherein, The base and the lamp holder are magnetically and detachably connected.

9. The rotatable dimmable LED lamp of claim 7, wherein, One end of the lamp holder facing the base is provided with a first magnetic attraction element, a first polarity conductive terminal and a second polarity conductive terminal, one end of the base facing the lamp holder is provided with a second magnetic attraction element, a first electrode and a second electrode, the first magnetic attraction element is attracted to the second magnetic attraction element, the first polarity conductive terminal is in abutment with the first electrode, and the second polarity conductive terminal is in abutment with the second electrode.

10. The rotatable dimmable LED lamp of claim 7, wherein, ​ ​ 11. The rotatable dimmable LED lamp of claim 3, wherein, ​ 12. The rotatable dimmable LED lamp of claim 11, wherein, ​

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