Lighting device

Abstract

A lighting device comprising a base comprising a supported lower body having a convex outer surface with a centre of curvature. The base is adapted to be placed on a support surface by at least one support point on the convex outer surface of the lower body. The device further comprises a lighting head fixed above the base and provided with at least one light source, and a power supply device electrically connected to the light source of the lighting head for powering the light source. The base is dimensioned such that the centre of mass of the lighting device lies between the support point and the centre of curvature of the outer surface of the lower body, the lighting device being tiltable by a user in use, switchable between an upright position and a plurality of tilted positions, and returning automatically to the upright position from any of the tilted positions when released by the user. The lighting device is easy to move and safe and stable in use.

Description

Technical Field

[0001] This utility model relates to a lighting device.

[0002] This lighting equipment, especially the luminaires, is designed for use in both indoor and outdoor environments.

[0003] Lighting fixtures are best small, tabletop types, and preferably without wires, so that they can be flexibly arranged and adjusted in the environment according to the user's needs.

[0004] Therefore, this utility model belongs to the field of lighting equipment manufacturing, and in particular relates to the production of table lamps. Background Technology

[0005] Lighting equipment is known in the field of technology that can be used in both indoor environments (e.g., restaurant lobbies, hotel lobbies, bar lobbies, libraries, studies, bedrooms, etc.) and outdoor environments (e.g., gardens, balconies, terraces, etc.).

[0006] In recent years, the field of tabletop lighting equipment has developed particularly rapidly, typically used in crowded environments (such as entertainment venues or restaurants) where users usually sit close together. Specifically, these tabletop lighting devices include a support base, the cross-section of which can be circular or polygonal (square, rectangular, etc.) for placement on a support surface such as a table, and a lighting head that is suspended from the support base by an extension rod that rises from the support base.

[0007] The lighting head is equipped with a light source, usually an LED, powered by a battery integrated into the device, thus avoiding unsightly wiring caused by connecting to the power grid.

[0008] Practice has proven that these desktop lighting devices have defects.

[0009] The main problem lies in the insufficient stability of the aforementioned lighting devices. In fact, these existing lighting devices often use small support bases to reduce the space occupied on the desktop.

[0010] However, while this smaller base enhances the device's aesthetics, it also increases the risk of it falling due to accidental bumps from the user.

[0011] Insufficient stability increases the risk of lighting equipment falling and being damaged, especially when used in crowded commercial environments such as restaurants and / or bars. In fact, in such situations, these devices are at high risk of being accidentally bumped by users.

[0012] Therefore, this decrease in stability can lead to a range of problems related to the operation of the equipment and its potential damage (including the lamp body and the equipment), and can also affect the safety of personnel in the area where the equipment is located.

[0013] Therefore, there is an urgent need in this field to develop a lighting device, preferably a tabletop lighting device, to solve the above problems and reduce the risks of existing technology devices. Utility Model Content

[0014] Therefore, the problem to be solved by this invention is to eliminate the defects of the prior art by providing a lighting device that is easy to move and safe and stable during use.

[0015] A further objective of this invention is to provide a lighting device that will not cause the risk of tipping over or breaking when it is impacted.

[0016] A further object of this invention is to provide a lighting device that is suitable for crowded environments, especially for placement on small and / or uneven surfaces.

[0017] A further objective of this invention is to provide a lighting device that is easy to turn on and off.

[0018] A further objective of this invention is to provide a lighting device that is simple to manufacture and inexpensive.

[0019] A further objective of this invention is to provide an aesthetically pleasing lighting device.

[0020] This utility model relates to a lighting device, comprising: a base including a supporting lower body having a convex outer surface with a center of curvature; the base being adapted to be placed on a supporting surface via at least one support point on the convex outer surface of the lower body; a lighting head fixed above the base and equipped with at least one light source; a power supply device electrically connected to the light source of the lighting head for supplying power to the light source; the lighting device is characterized in that the base is sized such that the center of mass of the lighting device is located between the support point and the center of curvature of the outer surface of the lower body, the lighting device being tiltable by the user during use, switching between an upright position and multiple tilted positions, and automatically returning to an upright position from any tilted position when released by the user.

[0021] In one embodiment, the base further includes an upper body mechanically connected to the lower body and the lighting head; the upper and lower bodies of the base have corresponding sides with peripheral threads to allow the upper and lower bodies to be connected together by screwing.

[0022] In one embodiment, the upper part of the base gradually tapers towards the lighting head from the convex outer surface of the lower part.

[0023] In one embodiment, the base and the lighting head are shaped such that the upper body does not contact its surface during oscillation between an upright and an inclined position, and the device rests against its surface via the outer surface of the lower body, whether in an upright or inclined position.

[0024] In this embodiment, the lower part of the base is substantially spherical or hemispherical.

[0025] In one embodiment, the lower part of the base is a solid body to serve as a counterweight for the lighting device.

[0026] In one embodiment, the power supply device includes a battery electrically connected to the light source, and the upper body defines a cavity therein for accommodating the battery.

[0027] In one embodiment, the illumination head includes an extension rod fixed to the base and extending to its upper end along the main development direction, and a top end body mounted at the upper end of the extension rod for mounting a light source. The extension rod of the illumination head is tubular and hollow inside. The power supply device includes at least one wire disposed inside the extension rod for electrical connection to the light source.

[0028] In one embodiment, the top end of the illumination head protrudes radially from the extension rod and extends between a lower surface facing the base and an opposite upper surface; the light source includes a plurality of LEDs disposed on the lower surface of the top end and arranged in a ring around the extension rod.

[0029] In one embodiment, the extension rod of the lighting head is made of a conductive material, and the device includes a circuit board housed in the base and a helical spring made of a conductive material located between the circuit board and the extension rod.

[0030] In one embodiment, the solid body is made of Zama. Attached Figure Description

[0031] In accordance with the above objectives, the technical features of this utility model are clearly embodied in the following claims, and its advantages are roughly reflected in the following detailed description, accompanied by drawings for reference. These drawings illustrate certain implementations that are purely illustrative and undefined, wherein:

[0032] ‒ Figure 1 Showing a front perspective view of the lighting device shown in this utility model;

[0033] ‒ Figure 2 show Figure 1 The front view of the device, showing the upright position (A) and multiple tilted positions (B) in a transparent manner;

[0034] ‒ Figure 3 show Figure 1 Exploded view of the equipment;

[0035] ‒ Figure 4A , 4B show Figure 1 Cross-sectional view of the equipment along orthogonal sections;

[0036] ‒ Figure 5 show Figure 4A The cross-sectional view shows details of the top part of the lighting equipment;

[0037] ‒ Figure 6 show Figure 4A The cross-sectional view shows details of the capacitor ignition device for lighting equipment 1. Detailed Implementation

[0038] Referring to the accompanying drawings, Figure 1 fully illustrates a lighting device implemented according to this utility model.

[0039] The device 1 described in this utility model has the advantage of being small in size, so it can be used as a table lamp in bars, restaurants and other places, and is also suitable for other environments.

[0040] According to the present invention, the lighting device 1 includes a base 2, which includes a supporting lower body 21 having a convex outer surface 20 with a curvature center C.

[0041] In particular, the aforementioned center of curvature C is an ideal center around which the lighting device 1 can rotate when tilted by the user, as will be further explained below. Preferably, the lower body 21 is generally spherical or hemispherical, and its center preferably coincides with the aforementioned center of rotation C.

[0042] Advantageously, the lower body 21 of the base 2 has a diameter between 20cm and 50cm, preferably between 25cm and 35cm, so as to be easily placed on a table or similar support surface.

[0043] As described below, the device 1 of this utility model has high stability and low risk of falling, and is small in size, making it suitable for placement on a desktop and use even in crowded environments.

[0044] It is obvious that the outer surface 20 of the lower body 21 does not need to be regularly convex along its entire development direction, and may also have one or more planar segments.

[0045] For example, according to the preferred embodiment shown in the figures, the lower body 21 advantageously has a planar segment 210 to provide stable support for the lighting device 1.

[0046] Advantageously, the aforementioned planar segment 210 of the outer surface 20 of the lower body 21 is provided with an access port, which is preferably equipped with a power connector for electrically connecting the light source 30 of the device 1 or a battery 40.

[0047] The base 2 is designed to be placed on a support surface S, such as a desktop, workbench, or other similar surface on which the device 1 can be placed during use.

[0048] The base 2 can be placed on the surface S corresponding to at least one support point P on the outer surface 20 of the lower body 21. In this case, it can also be understood as the aforementioned planar segment 210 of the outer surface 20.

[0049] The lighting device 1 also includes a lighting head 3, which is fixed above the base 2 and is equipped with at least one light source 30, preferably an LED light.

[0050] The lighting device 1 also includes a power supply device 4, which is electrically connected to the light source 30 of the lighting head 3 in order to supply power to the light source 30.

[0051] According to the basic concept of this utility model, the size of the base 2 of the lighting device 1 is designed such that the center of mass M of the lighting device 1 is located between the support point P and the center of curvature C of the outer surface 20 of the lower body 21.

[0052] Specifically, the dimensions of device 1 are determined from the perspective of mass distribution, thus taking into account its geometry, material and relative specific gravity to ensure that the condition that the total center of mass M is located below the center of rotation C (closer to the surface S) is met.

[0053] Specifically, during use, device 1 can be manually switched by the user between an upright position A and multiple tilted positions B, for example, as follows: Figure 3 As shown.

[0054] like Figure 1 As shown, when device 1 is in the upright position A, its main development axis Z is basically vertical, and in this case, device 1 is placed on, for example, a table for normal use.

[0055] In contrast, when device 1 is in tilted position B, its main development axis Z is tilted relative to the vertical direction, for example, because device 1 is accidentally hit or is tilted to one side by human operation.

[0056] Therefore, the lighting device 1 is advantageously configured to automatically return from the tilted position B to the upright position A once released by the user, thereby eliminating the force that causes it to tilt downwards.

[0057] This is because the dimensions of device 1, and especially its base 2, cause its center of mass M to be located below the center of curvature C. Advantageously, this holds true whether in the upright position A or the inclined position B.

[0058] In other words, the dimensions of device 1 ensure that the center of mass M remains below the center of curvature C as device 1 tilts from the upright position A to various tilt positions B, thereby preventing device 1 from remaining in a stable position at certain tilt angles and failing to truly return to the upright position A.

[0059] In this situation, as is known to those skilled in the art, when device 1 is tilted relative to its upright position A to any tilted position B, a torque (generated by the weight of device 1 itself) is generated on the lighting device 1, and the direction of this torque is opposite to the force that caused the lighting device 1 to tilt. In particular, when the force applied by the user disappears, the aforementioned torque tends to bring device 1 back to its upright position A.

[0060] Advantageously, the size design of the device 1 allows it to rest against the surface S on the outer surface 20 of the lower body 21, whether in the upright position A or in various tilted positions B, and even in each tilted position B.

[0061] Obviously, the outer surface 20 also includes any planar segments that may exist on the lower body 21, such as the planar segments described above that can improve the stable support of the device 1 in the upright position A.

[0062] Advantageously, the base 2 also includes an upper body 22 that is mechanically connected to the lower body 21 and the lighting head 3, and is preferably threaded to the lower body 21.

[0063] Preferably, the upper body 22 is made of a plastic material, such as ABS.

[0064] Advantageously, the upper body 22 and the lower body 21 of the base 2 have corresponding sides, which preferably have peripheral threads so as to connect the upper body 22 and the lower body 21 together by threads.

[0065] Obviously, the upper body 22 and the lower body 21 can also be connected in different ways, such as by snap-fit ​​or by screws, without thus falling outside the scope of protection of this utility model.

[0066] Advantageously, the lower body 21 is parallel to the development axis Z, extending from a base portion that is preferably hemispherical (which is used to rest against the surface S during normal use of the device 1) to a connecting portion that is preferably circular, the sides of which extend around the aforementioned development axis Z.

[0067] Advantageously, the lower body 21 of the base 2 is a solid body, which serves as a counterweight for the lighting equipment.

[0068] More specifically, the lower body 21 has a generally horizontal closed wall 211 at the aforementioned upper side, preferably perpendicular to the development axis Z.

[0069] Preferably, as will be better explained below, the aforementioned side and the aforementioned enclosing wall 211 at least partially define a receiving seat V for receiving electrical components of the power supply device 4, particularly the battery 40, which preferably rests against the enclosing wall 211 of the lower body 21.

[0070] Advantageously, the lower body 21 of the base 2 is made of metal, preferably of a zinc-aluminum-copper alloy, such as Zama (Zamak 3, Zamak 5, etc.).

[0071] In particular, the dimensions of the lower body 21 are designed so that its weight is greater than 70% of the total weight of the entire lighting device 1, preferably greater than 80%, for example 85%.

[0072] Advantageously, the upper body 22 of the base 2 gradually tapers towards the lighting head 3 from the convex outer surface 20 of the lower body 21.

[0073] In other words, the upper body 22 extends parallel to the development axis Z and tapers between the lower body 21 and the illumination head 3.

[0074] Preferably, the upper body 22 of the base 2 has its own outer surface, which is substantially concave.

[0075] The aforementioned outer surface of the upper body 22 serves to connect the convex outer surface 20 of the lower body 21 and the lighting head 3.

[0076] In particular, the concave outer surface of the upper body 22 extends upward from the corresponding side of the upper body 22 and has a concave surface opposite to the convex surface of the adjacent lower body 21.

[0077] In other words, the base 2 thus defined advantageously has a roughly teardrop shape.

[0078] Advantageously, the dimensions of the device 1 are designed such that the upper body 22 does not come into contact with the surface S on which it rests during the swinging of the lighting device 1 between the upright position A and various tilted positions B. Instead, in this case, the device 1 continues advantageously to rest against the surface S only by means of the lower body 21.

[0079] Advantageously, as described above, the power supply device 4 includes a battery 40 that is electrically connected to the light source 30. Advantageously, the upper body 22 is an internally hollow body and preferably defines a cavity 220 inside for accommodating the battery 40.

[0080] Specifically, as shown in the attached drawings, the battery 40 is housed between a cavity 220 defined by the interior of the upper body 22 and a base defined by the enclosing wall 211 and the side of the lower body 21.

[0081] Advantageously, the lighting head 3 includes an extension rod 31, preferably made of metal such as aluminum.

[0082] Advantageously, the extension rod 31 is mechanically connected to the base 2, particularly to the upper body 22, and extends along the main development direction X, preferably parallel to the main axis Z, to its upper end 31'.

[0083] More specifically, the extension rod 31 advantageously has an upper part 310 that is preferably cylindrical and a lower part 311 that is preferably conical.

[0084] In particular, the lower part 311 of the extension rod 31 is preferably connected to the upper body 22 of the base 2 via one or more intermediate connecting elements 5.

[0085] Advantageously, the intermediate connecting element 5 is made of plastic (e.g., PMMA), preferably transparent, to allow light emitted by the state LED inside the lighting device 1 to pass through, as better described below.

[0086] Advantageously, the lighting head 3 also includes a top body 32 which is mounted on the upper end 31' of the extension rod 31 and has a light source 30 mounted thereon.

[0087] Specifically, the top body 32 is mounted on the upper part 310 of the extension rod 31.

[0088] Advantageously, the extension rod 31 of the lighting head 3 is substantially tubular and hollow inside. Preferably, both the upper part 310 and the lower part 311 of the extension rod 31 are hollow inside.

[0089] Preferably, the power supply device 4 includes at least one connecting cable 4 (not shown in the figures), which is located inside the extension rod and is used for electrical connection to the light source 30.

[0090] Advantageously, the extension rod 31 of the lighting head 3 is made of a conductive material, preferably a metal, such as aluminum.

[0091] Preferably, the power supply device 4 includes a capacitor ignition system electrically connected to the light source 30 and the extension rod 31 to control the light source 30 to turn on and off based on touch input applied by the user to the extension rod 31.

[0092] In particular, the aforementioned touch input is advantageously transmitted by the user touching the extension rod 31 with their hand or fingers.

[0093] Therefore, the device 1 described in this utility model allows the user to open or close it by operating the extension rod 31 of the device 1 laterally, that is, by moving it along a lateral trajectory, for example, a lateral trajectory perpendicular to the main development direction X of the extension rod 31.

[0094] More specifically, this movement along the aforementioned trajectory can bring device 1 to the aforementioned tilted position B, after which the device will automatically return to the aforementioned upright position A regardless.

[0095] In other words, device 1 can be opened by the user's lateral push (relative to the main development direction X of extension rod 31). Unlike known types of lamps, this lateral push does not cause device 1 to tip over, but only puts it in the tilted position B and then automatically returns it to the upright position A.

[0096] Advantageously, the device 1 includes a circuit board 6 electrically connected to the light source 30 for controlling its operation, particularly turning it on / off.

[0097] Advantageously, the circuit board 6 is placed in the base 2, particularly in the cavity 220 defined by the interior of the upper body 22, and has a helical spring 7 made of conductive material between the circuit board 6 and the extension rod 31 to ensure electrical contact between the two, thereby allowing the operation of the capacitive ignition system.

[0098] Advantageously, as described above, the device 1 includes an intermediate connecting element 5 located between the base 2 and the extension rod 31.

[0099] Specifically, as described above, the intermediate connecting element 5 is made of an electrically insulating material to insulate the extension rod 31 from the base 2.

[0100] Advantageously, the intermediate connecting element 5 includes an annular portion 51 resting against the base 2 and the extension rod 31, and an extension portion 52 extending from the annular portion 51 toward the lower body 21 of the base 2 along the main development direction X.

[0101] Specifically, the extension portion 52 is inserted into the cavity 220 and is preferably substantially cylindrical with a hollow interior to accommodate the lower end of the extension rod 31, particularly the lower end of the lower portion 311 of the extension rod.

[0102] More specifically, the helical spring 7 is disposed inside the extension portion 52 of the intermediate connecting element 5 so that its upper part contacts the lower end of the lower portion 311 of the extension rod 31, thereby ensuring the electrical connection between the two components.

[0103] More specifically, the lower part 311 of the extension rod 31 has a lower stop edge 312 that rests against the annular portion 51 of the intermediate connecting element 5 and a cylindrical segment 313 that is at least partially inserted into the extension portion 52 of the intermediate connecting element 5.

[0104] Advantageously, device 1 includes a control board 8, preferably located below circuit board 6, on which a remote connection module, such as Wi-Fi, is advantageously mounted to enable remote control of the operation of light source 30.

[0105] The electrical and electronic connections between circuit board 6 and control board 8, as well as with the rest of the equipment 1, are well known to those skilled in the art and will not be described in detail below.

[0106] Advantageously, the top body 32 of the lighting head (3) extends radially from the extension rod 31 and extends between the lower surface 32' of the base 2 and the opposite upper surface 32'.

[0107] Advantageously, the light source 30 is disposed on the lower surface 32' of the top body 32 to emit a light beam toward the base 2 of the lighting device 1.

[0108] Advantageously, the top body 32 of the lighting head 3 is substantially circular, and the light source 30 includes a plurality of LEDs 300 which are advantageously mounted on an LED plate and preferably arranged on the lower surface 32' of the top body 32 in a ring around the extension rod 31.

Claims

1. Lighting equipment, including: ‒ A base (2) comprising a supporting lower body (21) having a convex outer surface (20) with a center of curvature (C). The base (2) is adapted to be placed on the support surface (S) by at least one support point (P) on the convex outer surface (20) of the lower body (21); ‒ An illumination head (3) is fixed above the base (2) and is equipped with at least one light source (30); ‒ Power supply device (4), electrically connected to the light source (30) of the lighting head (3), for supplying power to the light source (30); The lighting device is characterized in that the base (2) is designed such that the center of mass (M) of the lighting device (1) is located between the support point (P) and the center of curvature (C) of the outer surface (20) of the lower body (21). The lighting device can be tilted by the user during use, switching between an upright position (A) and multiple tilted positions (B), and automatically returns to the upright position (A) from any tilted position (B) when released by the user.

2. The lighting device according to claim 1, characterized in that, The base (2) also includes an upper body (22) mechanically connected to the lower body (21) and the lighting head (3); the upper body (22) and the lower body (21) of the base (2) have corresponding sides with peripheral threads so as to connect the upper body (22) and the lower body (21) together by screwing.

3. The lighting device according to claim 2, characterized in that, The upper body (22) of the base (2) gradually tapers towards the lighting head (3) from the convex outer surface (20) of the lower body (21).

4. The lighting device according to claim 2, characterized in that, The shapes of the base (2) and the lighting head (3) are such that the upper body (22) does not contact the support surface (S) during the swinging between the upright position (A) and the tilted position (B), and the device rests against the support surface (S) through the outer surface (20) of the lower body (21) whether in the upright position (A) or in any tilted position (B).

5. The lighting device according to claim 1, characterized in that, The lower part (21) of the base (2) is basically spherical or hemispherical.

6. The lighting device according to claim 1, characterized in that, The lower part (21) of the base (2) is a solid body to serve as a counterweight for the lighting device.

7. The lighting device according to claim 2, characterized in that, The power supply device (4) includes a battery (40) electrically connected to the light source (30), and the upper body (22) defines a cavity (220) therein for accommodating the battery (40).

8. The lighting device according to claim 1, characterized in that, The lighting head (3) includes an extension rod (31) which is fixed to the base (2) and extends along the main development direction (X) to its upper end (31'), and a top body (32) which is installed at the upper end (31') of the extension rod (31) for mounting a light source (30). The extension rod (31) of the lighting head (3) is tubular and hollow inside. The power supply device (4) includes at least one wire (41) disposed inside the extension rod for electrical connection to the light source (30).

9. The lighting device according to claim 8, characterized in that, The top body (32) of the lighting head (3) protrudes radially from the extension rod (31) and extends between the lower surface (32') facing the base (2) and the opposite upper surface (32''); the light source (30) includes a plurality of LEDs (300) disposed on the lower surface (32') of the top body (32) and arranged in a ring around the extension rod (31).

10. The lighting device according to claim 9, characterized in that, The extension rod (31) of the lighting head (3) is made of conductive material. The device includes a circuit board (6) housed in the base (2) and a helical spring (7) made of conductive material, which is located between the circuit board (6) and the extension rod (31).

11. The lighting device according to claim 6, characterized in that, The solid body is made of Zama.

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