Self-aligning wireless powered luminaires

Abstract

A self-aligning wireless power supply lamp comprises: a lampshade, at least partially made of a light-transmitting material; an independent part movably disposed within the lampshade, on which a light source and a wireless power receiving coil are fixedly mounted, wherein the receiving coil is used to power the light source; and a base, on which a wireless power transmitting coil is fixedly disposed that cooperates with the wireless power receiving coil of the independent part. When the lampshade is arbitrarily positioned on the base, the independent part within the lampshade has a tendency to move relative to the base so that the receiving coil on the independent part and the transmitting coil on the base are aligned with each other. According to the lamp of the present invention, since a gravity or magnetic force adjustment mechanism that enables self-alignment of the power supply coil is provided within the lampshade, the placement of the lampshade on the power supply base is not restricted, thereby making it very convenient to achieve any specific visual lighting effect, such as a free moon phase light effect.

Description

Technical Field

[0001] The invention relates to a wireless power supply lamp. Background Art

[0002] Wireless power supply technology has been widely used in various electrical devices including mobile phones, lamps, toys, rotating devices, etc.

[0003] When wireless power is applied to a lamp, the lamp body, which has a wireless power receiving coil, is typically placed on a power base with a wireless power transmitting coil. In the case of a lamp body such as a globe with a spherical lampshade, the spherical lamp can be placed arbitrarily relative to the base, making it difficult to quickly and effectively align the receiving coil with the transmitting coil in the base to achieve efficient wireless power. Summary of the Invention

[0004] An object of the present invention is to provide a wireless power supply lamp, which can at least overcome certain defects of the above-mentioned prior art.

[0005] The lamp according to the present invention comprises:

[0006] a lampshade, at least partially made of a light-transmitting material;

[0007] an independent component movably disposed in the lampshade, on which a light source and a wireless power receiving coil are fixedly mounted, wherein the receiving coil is used to supply power to the light source; and

[0008] The base is fixed with a wireless power transmitting coil that cooperates with the wireless power receiving coil of the independent component.

[0009] When the lampshade is randomly positioned on the base, the independent part in the lampshade has a tendency to move relative to the base so that the receiving coil on the independent part and the transmitting coil on the base are aligned with each other (for effective wireless power supply).

[0010] In this disclosure, the term "aligned receiving coil and transmitting coil" means that efficient power transfer is achieved between the two during wireless power delivery. In other words, when aligned, the relative orientation or position of the receiving coil and transmitting coil is determined to maximize power transfer between them.

[0011] According to a specific embodiment of the lamp of the present invention, the movement tendency of the independent component can be due to its own gravity. In this case, for example, the receiving coil and the transmitting coil can be very conveniently aligned with each other in the vertical direction (up and down).

[0012] Alternatively or additionally, the independent component and the base may each be provided with a magnetic member, and the movement of the independent component may be driven by the magnetic attraction between the independent component and the base. In this case, the movement of the independent component may be faster and / or more precise.

[0013] According to the lamp of the present invention, it is preferred that the lampshade can be temporarily positioned on the base in a variety of postures.

[0014] The lamp according to the present invention can have a spherical lampshade or other suitable shapes, such as a round vase. The lampshade can be constructed in two halves, with one half made of a highly translucent material, such as a translucent material, and the other half made of a less translucent material, such as an opaque material. Alternatively, the lampshade can be made of a single translucent material.

[0015] According to the lamp of the present invention, the lampshade can be a closed or semi-closed lampshade, and the shape of the independent part is designed to be able to roll freely relative to the inner wall of the lampshade.

[0016] According to the present invention, the independent component may have a transparent shell, and the light source and the receiving coil are both fixedly arranged in the transparent shell.

[0017] According to the present invention, the independent component may further include a partition fixed within the transparent housing to substantially divide the interior space thereof. The partition is made of a light-isolating material, and the light source is distributed on either side (or both sides) of the partition. In this case, the receiving coil can be fixedly mounted at the bottom of the partition. The lampshade is preferably a spherical lampshade made of a light-transmitting material, and the transparent or light-transmitting housing of the independent component is preferably a spherical housing with an outer diameter slightly smaller than the inner diameter of the spherical lampshade.

[0018] According to the lamp of the present invention, the base may have a movable part, the lampshade is positioned on the movable part of the power supply base, and the lampshade is moved accordingly by actuating the movable part of the base.

[0019] According to the present invention, the power supply base may further include a motor for actuating the movable member to rotate. In this case, the direction of the rotation axis when the movable member rotates relative to the base is preferably adjustable.

[0020] According to the lamp of the present invention, the lampshade can be a molded part and / or a 3D printed part.

[0021] According to the lamp of the present invention, the lampshade may have a substantially spherical outer surface that is uneven.

[0022] According to the lamp of the present invention, the lampshade is preferably designed to be a planet selected from the group consisting of the earth, the moon, other planets and asteroids.

[0023] According to the lamp of the present invention, the independent member within the lampshade can also be fixedly equipped with a magnet, and the base is in the form of a magnetic levitation device, so that the independent member, and therefore the lampshade, can be positioned and suspended above the base by the magnet. The lampshade of this magnetic levitation lamp can not only be rotated arbitrarily, but also, due to the self-alignment of the movable independent member along the direction of gravity, the orientation of the magnet fixed thereon can also be automatically vertically oriented relative to the lampshade, thus solving the problem of the difficulty of centered suspension of the movable magnet on the base when it is installed in a closed suspension.

[0024] In the lamp of the present invention, the lampshade can be a spherical shell made of an elastic, transparent material, filled with a fluid, such as liquid or air. Furthermore, a rechargeable battery can be fixed to the independent component, which is charged via a wireless power receiving coil and can power the light source. This embodiment conveniently solves the problem of existing bouncing light-emitting balls being difficult to recharge the battery.

[0025] The base of the lamp according to the present invention can be in the form of a tripod with three interconnected V-shaped legs, comprising an upper shell and a lower shell, with the wireless power transmission coil appropriately sandwiched between the upper and lower shells. This structure makes the entire device extremely simple and compact.

[0026] The present invention also provides a lamp for use with a wireless charging base, comprising:

[0027] a lampshade, at least partially made of a light-transmitting material; and

[0028] An independent component movably arranged in the lampshade, on which a light source and a wireless power receiving coil are fixedly mounted, wherein the receiving coil is used to power the light source.

[0029] The base is fixed with a wireless power transmitting coil that cooperates with the wireless power receiving coil of the independent part. When the lampshade is arbitrarily positioned on the base, the independent part inside the lampshade has a movement tendency relative to the base so that the receiving coil on the independent part and the transmitting coil on the base are aligned with each other.

[0030] According to the lamp of the present invention, since a gravity or magnetic adjustment mechanism that can make the power supply coil self-align is provided in the lampshade, the placement or suspension posture of the lampshade on the power supply base can be unrestricted, thereby very conveniently realizing any specific visual lighting effect, such as a free moon phase lamp effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic perspective structural diagram of a lamp with a yin-yang lampshade according to the present invention;

[0032] Figure 2-8 They are schematic cross-sectional views of different embodiments of the lamp according to the present invention;

[0033] Figure 9 and 10 A front view and a side view of a lamp with an internal partition according to the present invention;

[0034] Figure 11 and 12 Schematic cross-sectional views of two different embodiments of a bouncing ball-shaped lamp according to the present invention are shown respectively;

[0035] Figure 13 Another embodiment of the lamp according to the present invention is shown;

[0036] Figure 14 Shown according to Figure 13 An exploded schematic diagram of the charging base of the illustrated embodiment; and

[0037] Figure 15 and 16 The embodiments of the magnetic levitation lamp according to the present invention are respectively shown. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the embodiments and drawings. Those skilled in the art should understand that the embodiments and drawings are only for better understanding of the present invention and are not intended to limit the present invention in any way.

[0039] Figure 1 A perspective view of a spherical lamp according to the present invention is shown. The lamp comprises a base 20 and a yin-yang spherical lampshade consisting of a relatively light-transmitting hemispherical shell 11 and a less light-transmitting or non-transparent hemispherical shell 12. When the light source within the yin-yang spherical lampshade is illuminated, a visual illumination effect resembling a half-moon is produced. Changing the viewing angle or the placement of the spherical lampshade on the base produces a correspondingly changing lunar phase (e.g., a crescent moon) visual illumination effect.

[0040] Figure 2-Figure 8 The cross-sectional views respectively illustrate the specific structures of different embodiments of the lamp according to the present invention.

[0041] Figure 2 The lamp shown is composed of a spherical lampshade 10 and a power supply base 20 as a whole, wherein an independent component in the form of a freely rolling luminous ball is further arranged in the lampshade 10.

[0042] The lampshade 10 is at least partially made of a light-transmitting material, for example Figure 1 The yin-yang spherical lampshade shown can thus have the visual lighting effect of the moon phase lamp, and can also be made of a single light-transmitting material (for example Figure 7 and Figure 8 The vase shape design lampshade shown or Figure 9 and Figure 10In addition, the surface of the lampshade 10, especially the outer surface, can also be a rough surface, similar to the uneven spherical surface of a planet, moon or asteroid. The lampshade 10 can be a molded part and / or a 3D printed part.

[0043] Figure 2 The luminous ball shown has a transparent or translucent shell 30, which is fixed with a counterweight 33, a wireless power receiving coil 31 surrounding the counterweight 33, and a light source 32 powered by the receiving coil 31. The counterweight 33 accounts for a significant portion of the entire luminous ball, for example, exceeding 60% or even 90%. Furthermore, a wireless power transmitting coil 21 is mounted on the base 20.

[0044] exist Figure 2 In the illustrated embodiment, due to the strong gravitational force of the counterweight 33, no matter in what posture the spherical lampshade 10 is placed on the base 20, the luminous ball therein will roll to the lowest center of gravity position within the lampshade 10 accordingly, so that the posture of the receiving coil 31 fixed around the counterweight 33 relative to the transmitting coil 21 in the base 20 can always remain unchanged, that is, the receiving coil 31 and the transmitting coil 21 can always remain aligned. Figure 2 The transmitter coil 21 is shown horizontally arranged on the base 20, and the receiver coil 31 within the luminous sphere, located at its lowest center of gravity, is also horizontally arranged. When the spherical lampshade 10 is placed in any orientation or positioned at a predetermined central position on the base 20, the relative position (orientation and distance) of the receiver coil 31 and the transmitter coil 21 remains essentially unchanged, meaning they are always vertically (vertically) aligned. When the base is connected to an external power source, the aligned transmitter coil 21 and receiver coil 31 effectively wirelessly power the light source 32.

[0045] Although not specifically shown, Figure 2 The luminous ball may further be provided with an electric control element such as a circuit board to realize controllable power supply from the receiving coil 31 to the light source 32 .

[0046] Figure 3 The embodiment shown is Figure 2Similarly, the difference is that a magnetic element 34 is additionally provided within the luminous ball, and a magnetic element 22 is additionally provided within the base 20. At least one of the magnetic element 34 and the magnetic element 22 is a magnet, and the other can be a magnet or iron, and the two can generate a magnetic attraction. For example, the magnetic element 34 is a horizontally placed bar magnet (having a horizontal magnetic pole NS), and the magnetic element 22 is also a horizontally placed bar magnet (having a horizontal magnetic pole SN), with their opposite magnetic poles vertically aligned. For another example, the magnetic element 34 can be a plurality of independent cylindrical magnets (having upper and lower magnetic poles NS and / or SN), and the magnetic element 22 can also include a plurality of independent cylindrical magnets (having upper and lower magnetic poles SN and / or NS). When the magnetic element 34 and the magnetic element 22 are aligned, their corresponding mating magnets attract each other. With the help of the magnetic effect of the magnetic element, the position of the luminous ball or the receiving coil 31 therein relative to the base 20 or the transmitting coil 21 therein can be adjusted more quickly and accurately. In this embodiment, the counterweight 33 may be omitted and only the magnetic member 34 and the magnetic member 22 that cooperate with each other may be used.

[0047] Figure 4 The embodiment shown is Figure 3 The spherical lampshade 10 is similar, except that a rotatable support member 23 is provided on the base 20, and a magnetic member 22 is disposed on top of the support member 23. The support member 23 can be driven to rotate horizontally by a motor 24 fixedly disposed within the base 20. When the spherical lampshade 10 is placed on the support member 23 of the base 20, due to the gravity of the counterweight 33 and / or the magnetic attraction between the magnetic member 34 and the magnetic member 22, when the vertically rotating output shaft of the motor 24 drives the support member 23 of the base 20 to rotate horizontally, it can also drive the lampshade 10 to rotate, thereby achieving a corresponding dynamic visual lighting effect.

[0048] Figure 5 The embodiment shown is Figure 4 Similarly, the difference is that a manual rotating member 25 is additionally provided on the base 20, and the support member 23 is provided on the rotating member 25, so that the rotating position of the rotating member 25 in the vertical plane can be manually adjusted to achieve the corresponding tilt rotation of the rotating axis of the motor 24 and the support member 23 driven by it. Figure 5 The illustrated embodiment is particularly suitable for use as a luminous globe, wherein the spherical lampshade 10 can be tilted and rotated relative to the base 20 at a specific angle.

[0049] Figure 6 The embodiment shown is Figure 2 The embodiment is similar, but differs in that, instead of the spherical shell 30 , the light-emitting body in the lampshade uses a shell 30 ′ in the form of a rollable tetrahedron.

[0050] Figure 7 and 8 The embodiment shown is Figure 2The difference is that instead of the spherical lampshade 10, the lampshade 10' adopts a round-bellied vase design. Figure 7 and 8 As shown, no matter the placement of the lampshade 10', the receiving coil therein and the transmitting coil in the base can always maintain a mutually aligned position. In this embodiment, the luminous ball can be easily placed through the opening of the vase or lampshade 10'.

[0051] Figure 9 and Figure 10 The embodiment shown is Figure 3 Similar to the embodiment, the base 20 is omitted, and the outer diameter of the spherical shell 30 of the luminous ball in the spherical lampshade 10 is increased to be slightly smaller than the inner diameter of the lampshade 10. A light-isolating circular plate 35 is installed in the spherical shell 30 of this embodiment, dividing the interior of the spherical shell into two parts. Independently controlled light sources 32 and rechargeable batteries 36 can be installed on both sides of the light-isolating circular plate. The receiving coil 31 located below the light-isolating circular plate is used to power the light source 32 and the rechargeable battery 36. Figure 10 As shown, the light-isolating circular plate 35 is set on the counterweight block 33, and a magnetic member 34 can also be set under the counterweight block 33; this configuration can not only quickly position the receiving coil 31 in the correct power supply posture, but also orient the light-isolating circular plate 35 in a vertical position at the same time.

[0052] exist Figure 9 and Figure 10 In the embodiment shown, the lampshade 10 does not need to be Figure 1 The yin-yang spherical lampshade design shown can achieve the visual lighting effect of the moon phase lamp by means of the light-isolating circular plate 35 or the partition by using a normal light-transmitting lampshade.

[0053] Figure 11 The embodiment shown is a bouncing luminous ball, and its structure is similar to Figure 2 Similar, except that a thicker transparent outer spherical shell 10" in the form of elastic silicone is used instead of Figure 2 The space between the outer spherical shell 10″ and the inner spherical shell 30 can be filled with a suitable fluid, such as a transparent liquid or air. Although not specifically shown, a secondary battery can also be fixedly installed in the inner spherical shell 30 to power the light source 32 therein. In this case, the secondary battery can be recharged very conveniently through the receiving coil 31.

[0054] Figure 12 The bouncing luminous ball of the embodiment shown is Figure 11 A variation of the embodiment shown, in which a thinner hard transparent intermediate spherical shell 13 is attached to the inner wall of the outer spherical shell 10", which is made of, for example, organic glass. In this case, after the inner spherical shell 30 is placed in the intermediate spherical shell 13, the outer spherical shell 10" can be injection molded on the intermediate spherical shell 13 in one step, so that the outer spherical shell 10" has a complete spherical surface without leaving any seams.

[0055] Figure 13 The embodiment shown is Figure 2 Similar, except that a combined charging base 20' is used. Figure 14 As further shown, base 20' comprises an upper housing 22', a lower housing 23', and a transmitting coil 21' sandwiched between them. The shape of transmitting coil 21' mirrors that of base 20', both forming a tripod-like structure with three interconnected V-shaped legs. In this configuration, transmitting coil 21' can be cleverly concealed within the tripod base 20', making the entire device extremely compact and simple.

[0056] Figure 15 The embodiment shown is Figure 6 Similar to the previous one, the difference is that it uses a magnetic levitation structure. Figure 15 In the magnetic levitation lamp shown in the figure, a counterweight 33' in the form of a cylindrical magnet is used, and a base 20' in the form of a magnetic levitator is used. The base 20' includes an annular magnet 22', an electromagnetic coil 23', and a wireless power transmitting coil 21 that cooperates with the wireless power receiving coil 31 in the suspended luminous ball. The specific structure and working principle of this magnetic levitation device itself are well known in the art and will not be described in detail here for the sake of space; for example, see CN100544183C and US7505243B2, etc., all of which are incorporated herein by reference.

[0057] Figure 16 Shown in simplified form Figure 15 In the magnetic levitation lamp shown, the tetrahedral housing 30' is suspended at a predetermined position above the base 20", and the spherical lampshade 10 is suspended at the top of the housing 30'. In this case, since the spherical lampshade 10 is only connected to the housing 30'

[0058] The spherical lampshade 10 can be rotated arbitrarily relative to the housing 30'.

[0059] according to Figure 15 and Figure 16In the illustrated magnetic levitation lamp, the lampshade 10 can not only be rotated arbitrarily, but also, due to the self-alignment of the counterweight 33' along the direction of gravity, the cylindrical magnets affixed thereto can automatically orient themselves vertically relative to the lampshade 10. When the lamp or lampshade 10 is suspended relative to a horizontally positioned levitator base 20", for example, by hand or automatically placing the lampshade 10 on the base 20", the active magnets in the lampshade 10 automatically orient themselves as described above due to the strong gravitational force of the counterweight 33', allowing it to be easily suspended manually or automatically above the horizontal base 20". This cleverly solves the problem of difficultly aligning active magnets relative to the base when used in a closed levitator.

[0060] Those skilled in the art will appreciate that, although not specifically illustrated, the housing 30' and the lampshade 10 suspended therefrom may also be suspended below a levitator in the form of a hanger. The specific structure and operating principle of such a magnetic levitation device are well known in the art and will not be described in detail here for the sake of space. For example, see CN2561163Y, the entire contents of which are hereby incorporated by reference.

Claims

1. A lamp, comprising: a lampshade, at least partially made of a light-transmitting material; an independent component movably disposed in the lampshade, on which a light source and a wireless power receiving coil are fixedly mounted, wherein the receiving coil is used to supply power to the light source; and The base is fixed with a wireless power transmitting coil that cooperates with the wireless power receiving coil of the independent component. When the lampshade is randomly positioned on the base, the independent part in the lampshade has a tendency to move relative to the base so that the receiving coil on the independent part and the transmitting coil on the base are aligned with each other. The lampshade is a closed or semi-closed lampshade, and the shape of the independent piece is designed to be able to roll freely along the inner wall of the lampshade.

2. The luminaire according to claim 1, wherein the movement tendency is caused by the weight of the independent part itself.

3. The lamp according to claim 1, wherein the independent part and the base are respectively provided with magnetic parts, and the movement tendency is caused by the magnetic attraction generated between the magnetic parts.

4. The lamp according to claim 1, wherein the lampshade is a spherical lampshade divided into two halves, wherein the light transmittance of one half is lower than that of the other half.

5. The lamp according to claim 1, wherein the independent component has a transparent shell, and the light source and the receiving coil are fixedly arranged in the transparent shell.

6. The lamp according to claim 5, wherein the independent member further comprises a partition fixed in the transparent shell to substantially divide the internal space thereof, the partition being made of a light-isolating material, and the light sources being distributed on either side of the partition.

7. The lamp according to claim 6, wherein the lampshade is a spherical lampshade made of a light-transmitting material, and the transparent shell of the independent member is a spherical shell with an outer diameter slightly smaller than an inner diameter of the spherical lampshade.

8. The lamp according to claim 1, wherein the base has a movable part, the lampshade is positioned on the movable part of the base, and the lampshade moves accordingly by actuating the movable part of the base.

9. The lamp according to claim 8, wherein the base further comprises a motor for actuating the movable member to rotate.

10. The lamp according to claim 9, wherein the direction of the rotation axis is adjustable when the movable member rotates relative to the base. The lamp according to claim 1 , wherein the lampshade is a molded part and / or a 3D printed part.

12. The lamp of claim 1, wherein the lampshade has a generally spherical outer surface that is uneven.

13. The lamp according to claim 12, wherein the lampshade is designed to be a planet.

14. The lamp according to claim 1, wherein the independent piece in the lampshade is further fixedly provided with a magnet, and the base is in the form of a magnetic levitator, so that the independent piece and thus the lampshade can be positioned by the magnet to float above the base.

15. The lamp according to claim 14, wherein a rechargeable battery is fixedly mounted on the independent component, which is charged by the wireless power receiving coil and can power the light source.

16. The lamp according to claim 1, wherein the base is in the form of a tripod with three V-shaped legs connected to each other, comprising an upper shell and a lower shell, and the wireless power transmission coil is adaptively sandwiched between the upper shell and the lower shell.

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