A lighting device

Abstract

The present application mainly relates to a lighting device, including a bracket assembly, a rotating shaft assembly, a first light source assembly and an electric wire. One end of the rotating shaft assembly is connected to the bracket assembly, and the other end of the rotating shaft assembly is connected to the first light source assembly, so that the first light source assembly can be rotated relative to the bracket assembly through the rotating shaft assembly. Since the bracket assembly and the rotating shaft assembly are both hollow structures, the electric wire can be passed through the bracket assembly and the rotating shaft assembly, so that the electric wire is hidden in the lighting device, thereby increasing the consistency of the appearance structure of the lighting device. Since the rotating shaft assembly includes a slip ring, the electric wire is connected through the slip ring at the rotating shaft assembly, so that the electric wire does not generate excessive internal stress during the rotation of the first light source assembly relative to the bracket assembly, thereby effectively improving the problem of electric wire breakage.

Description

Technical Field

[0001] The present application relates to the technical field of electronic lighting, and in particular to a lighting device. Background Art

[0002] With the continuous development of electronic lighting technology and the continuous improvement of people's living standards, lighting devices have been used not only to meet users' daily lighting needs, but also to embellish their homes. As a result, users have put forward increasingly higher requirements for the appearance design, performance, and application scenarios of lighting devices, hoping that lighting devices can better enrich their daily lives. Summary of the Invention

[0003] An embodiment of the present application provides a lighting device, wherein the lighting device includes a bracket assembly, a rotating shaft assembly, a first light source assembly and an electric wire, one end of the rotating shaft assembly is connected to the bracket assembly, and the other end of the rotating shaft assembly is connected to the first light source assembly, so that the first light source assembly can rotate relative to the bracket assembly through the rotating shaft assembly, the bracket assembly and the rotating shaft assembly are both hollow structures, the electric wire is passed through the bracket assembly and the rotating shaft assembly, the rotating shaft assembly includes a slip ring, the electric wire is connected through the slip ring at the rotating shaft assembly, and is electrically connected to the first light source assembly.

[0004] The beneficial effects of the present application are as follows: the lighting device provided herein includes a bracket assembly, a rotating shaft assembly, a first light source assembly, and electrical wires. Because the bracket assembly and the rotating shaft assembly are both hollow structures, the electrical wires can be passed through the bracket assembly and the rotating shaft assembly, thereby allowing the electrical wires to be hidden within the lighting device, thereby increasing the consistency of the lighting device's appearance and structure. Furthermore, because the rotating shaft assembly includes a slip ring, the electrical wires are connected via the slip ring at the rotating shaft assembly, so that the electrical wires do not generate excessive internal stress during the rotation of the first light source assembly relative to the bracket assembly, thereby effectively alleviating the problem of electrical wire breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0006] Figure 1 This is a schematic structural diagram of an embodiment of a lighting device provided by the present application;

[0007] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the middle base assembly;

[0008] Figure 3 yes Figure 1 An exploded schematic diagram of an embodiment of a rotating shaft assembly;

[0009] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the rotating shaft assembly along the XZ plane;

[0010] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure of the rotating shaft assembly along the YZ plane;

[0011] Figure 6 yes Figure 1 A schematic diagram of the exploded structure of another embodiment of the rotating shaft assembly;

[0012] Figure 7 yes Figure 6 A schematic structural diagram of an embodiment of a rotating shaft ball head;

[0013] Figure 8 yes Figure 1 A schematic diagram of the projection structure of the lighting device in the XZ plane when in use;

[0014] Figure 9 yes Figure 1 A schematic diagram of the projection structure of the lighting device in another use state on the XZ plane;

[0015] Figure 10 2 is a schematic diagram of the projection structure of another embodiment of the lighting device provided by the present application on the XZ plane;

[0016] Figure 11 yes Figure 10 A schematic diagram of the projection structure of the lighting device in another use state on the XZ plane;

[0017] Figure 12 yes Figure 10 A schematic diagram of the projection structure of another embodiment of the second light source assembly and the first light source assembly in the XZ plane;

[0018] Figure 13 yes Figure 12 A schematic diagram of the projection structure of the lighting device in another use state on the XZ plane;

[0019] Figure 14 yes Figure 10 Schematic diagram of the exploded structure of the first light source assembly and the second light source assembly;

[0020] Figure 15 yes Figure 14 Schematic diagram of the cross-sectional structure of the first light source assembly and the second light source assembly along the XZ plane. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only intended to illustrate the present application and are not intended to limit the scope of the present application. Similarly, the following examples are only some examples of the present application and not all examples. All other examples obtained by those of ordinary skill in the art without creative work are intended to fall within the scope of protection of this application.

[0022] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0023] After long-term research, the inventors of the present application have found that: in order to facilitate lighting, lighting devices (such as table lamps) generally need to rotate at multiple angles and directions to adjust the irradiation direction of their light sources. For example: the light source of a table lamp must be able to flip up and down at least 90 degrees in the vertical direction (with the earth as a reference), and must be able to rotate at least 270 degrees in the horizontal direction (with the earth as a reference). In order to meet the above rotation requirements, a rotating shaft is generally added to the bracket of the table lamp, and its main structural form is: a four-sided pull rod mechanism is used at the rotating shaft and is tightened with a spring. When adjusting, the user needs to turn the adjustment knob with one hand and press down the connecting rod with the other hand. When it is pressed down to the appropriate position, tighten the knob to fix the position of the rotating shaft. Obviously, the above operation process requires the coordination of both hands, which is not user-friendly, and the rotating shaft structure and wires are exposed, affecting the appearance of the table lamp. For this reason, the present application proposes the following embodiments.

[0024] See Figure 1 , Figure 1 This is a schematic diagram of the structure of an embodiment of the lighting device provided by this application. It should be noted that, Figure 1 The schematic diagram shows the X, Y and Z directions of the lighting device, mainly to illustrate the three planes XY, XZ and YZ, so as to facilitate the corresponding description in the following text. Therefore, all directional indications in the embodiments of the present application (such as up, down, left, right, front, back...) are mainly used to explain the direction of the lighting device in a certain posture (such as the attached figure). Figure 1 The relative position relationship and movement conditions of the components below are shown. If the specific posture changes, the directional indication will also change accordingly.

[0025] In the embodiment of the present application, the lighting device 10 may be a lamp such as a table lamp, a wall lamp, or a floor lamp. In the embodiment of the present application, the lighting device 10 is taken as an example to illustrate. Figure 1 As shown, the lighting device 10 may include a base assembly 11 , a bracket assembly 12 , a rotating shaft assembly 13 , a first light source assembly 14 and an electric wire 15 .

[0026] The base assembly 11 is primarily used to support the lighting device 10 as a whole, thereby increasing the overall structural stability of the lighting device 10. The base assembly 11 is connected to the end of the bracket assembly 12 that is distal from the first light source assembly 14. In some embodiments, the base assembly 11 may have a disc-shaped structure, a ring-shaped structure, a block-shaped structure, or the like, to facilitate placement of the lighting device 10 on a supporting surface such as a desk or nightstand. In other embodiments, the base assembly 11 may also have a clamp-shaped structure, for example, to facilitate clamping the lighting device 10 to the edge of a desk or nightstand.

[0027] The bracket assembly 12 is primarily used to support the first light source assembly 14, enabling the first light source assembly 14 to form a certain illumination area on at least the supporting surface, thereby meeting the user's daily lighting needs. The bracket assembly 12 can be a columnar structure, a plate-like structure, or the like, with one end connected to the base assembly 11. For example, one end of the bracket assembly 12 is inserted into the base assembly 11.

[0028] One end of the shaft assembly 13 is connected to the bracket assembly 12, and the other end of the shaft assembly 13 is connected to the first light source assembly 14, so that the first light source assembly 14 can rotate relative to the bracket assembly 12 through the shaft assembly 13. The specific structure of the shaft assembly 13 will be described in detail later.

[0029] In the embodiment of the present application, the bracket assembly 12 and the shaft assembly 13 can both be hollow structures, so that the wire 15 can be passed through the bracket assembly 12 and the shaft assembly 13, so that the wire 15 is hidden in the lighting device 10, thereby increasing the consistency of the appearance structure of the lighting device 10.

[0030] Furthermore, the first light source assembly 14 can be in a strip, disk, or ring shape to meet the user's daily lighting needs. The wire 15 is electrically connected to the first light source assembly 14 and is mainly used to guide electrical energy to the first light source assembly 14 so that the first light source assembly 14 can emit light.

[0031] See Figure 2 , Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the base assembly. It should be noted that, Figure 2 The bracket assembly is shown in the figure mainly to implicitly illustrate a possible assembly relationship between the bracket assembly and the base assembly. Figure 2 The wires are shown schematically mainly to implicitly illustrate a possible routing of the wires in the base assembly and the bracket assembly.

[0032] The base assembly 11 may include a mounting base 111 and a control board 112 disposed on the mounting base 111. The control board 112 is electrically connected to the first light source assembly 14. The mounting base 111 is primarily used to support the lighting device 10 as a whole. The control board 112 is primarily used to convert user operations into corresponding control signals to facilitate control of the first light source assembly 14. The control board 112 may be electrically connected to the first light source assembly 14 via an electrical wire 15.

[0033] In some embodiments, the fixing base 111 may include a base plate 1111, a panel 1112, and a ballast 1113. The panel 1112 may be assembled with the base plate 1111 by any of a variety of assembly methods, such as snap-fitting, gluing, riveting, or threading, or a combination thereof. The two may form a cavity structure with a certain volume; the ballast 1113 and the control panel 112 are housed within the cavity structure. Furthermore, the ballast 1113 may be made of a material with a relatively high density, so that when the lighting device 10 is placed on the aforementioned support surface, the ballast 1113 can lower the center of gravity of the lighting device 10, thereby increasing the overall structural stability of the lighting device 10.

[0034] The ballast block 1113 can be a horseshoe nail structure, a disc structure, a ring structure, etc., and its density can also be as high as possible. Among them, the ballast block 1113 can be assembled with the base plate 1111 by one of the assembly methods such as clamping, gluing, riveting, threading, etc. and their combination. Such an arrangement, on the one hand, facilitates the ballast block 1113 to reduce the center of gravity of the lighting device 10 to the greatest extent; on the other hand, it also facilitates the control board 112 to be accommodated in the above-mentioned cavity structure. For example: the ballast block 1113 is a horseshoe nail structure, such as Figure 2 As shown, the weight block 1113 can leave a space for placing the control panel 112. At this time, the control panel 112 can be fixed to the base plate 1111 so that the control panel 112 can withstand the force applied to it by the user when performing relevant operations.

[0035] Furthermore, the panel 1112 is provided with a first mounting hole 11121, and the ballast block 1113 is provided with a second mounting hole 11131. With such an arrangement, after the panel 1112 and the base plate 1111 are assembled, the second mounting hole 11131 and the first mounting hole 11121 can be coaxial in the Z direction, so as to facilitate the installation of the bracket assembly 12. For example, the bracket assembly 12 is connected to the ballast block 1113 via the second mounting hole 11131 and the first mounting hole 11121, and by a threaded connection. At this point, the positional relationship between the bracket assembly 12 and the base assembly 11 is relatively fixed. Of course, a rotating shaft assembly 13 or a similar rotating mechanism can also be provided between the bracket assembly 12 and the base assembly 11, so that the bracket assembly 12 can rotate relative to the base assembly 11.

[0036] In some embodiments, the control board 112 may be provided with a switch element, a photosensitive element, a dimming element, etc. ( Figure 2 (not marked in the figure), so that the user can realize the functions of turning on or off the first light source assembly 14 and adjusting the light intensity through the control panel 112. Accordingly, the panel 1112 can be provided with a switch button, a dimming knob, etc. ( Figure 2 Of course, the switch button and dimming knob can also be a touch-sensitive structure. In this case, only the corresponding logo or icon needs to be designed on the panel 1112.

[0037] In some other embodiments, the control board 112 may also be provided with a coupled processing module, a transceiver module, a storage module, etc. ( Figure 2 (not shown in the figure), so that the user can interact with the control panel 112 through a portable device such as a remote controller, a mobile phone, a tablet computer, a wearable device, etc., thereby enabling the user to remotely control the lighting device 10.

[0038] Joint Reference Figures 3 to 5 , Figure 3 yes Figure 1 An exploded schematic diagram of an embodiment of a rotating shaft assembly, Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the rotating shaft assembly along the XZ plane. Figure 5 yes Figure 3 Schematic diagram of the cross-section structure of the central shaft assembly along the YZ plane. It should be noted that: Figure 3 The bracket assembly and the first light source assembly are shown in the figure, mainly to implicitly illustrate a possible assembly relationship between the shaft assembly, the bracket assembly and the first light source assembly. Figure 3 The wires are shown schematically mainly to implicitly illustrate a possible routing of the wires in the bracket assembly and the shaft assembly.

[0039] In some embodiments, the shaft assembly 13 may include a shaft sleeve 131, a shaft ball 132, and a connecting arm 133. The shaft sleeve 131, shaft ball 132, and connecting arm 133 may all be hollow structures, with the wire 15 threaded through the shaft ball 132 and connecting arm 133 to facilitate threading through the shaft assembly 13. Furthermore, the outer diameter of the shaft sleeve 131 may be less than or equal to 15 mm, and the outer diameter of the connecting arm 133 may be less than or equal to 6 mm, thereby reducing the overall dimensions of the shaft assembly 13 and making the shaft assembly 13 more compact.

[0040] The shaft sleeve 131 can be connected to the bracket assembly 12 by one or a combination of assembly methods such as clamping, gluing, and threading to achieve assembly between the shaft assembly 13 and the bracket assembly 12. In this embodiment of the application, the threaded connection between the shaft sleeve 131 and the bracket assembly 12 is used as an example for illustrative description.

[0041] The shaft ball head 132 is movably connected to the shaft sleeve 131, allowing the shaft ball head 132 to rotate relative to the shaft sleeve 131, thereby allowing the shaft assembly 13 to rotate relative to the bracket assembly 12. In this case, the rotational mating surface between the shaft ball head 132 and the shaft sleeve 131 can be a spherical surface. The outer surface of the shaft ball head 132 can be a smooth surface to enhance the smoothness of the rotation of the shaft ball head 132 relative to the shaft sleeve 131.

[0042] One end of the connecting arm 133 can be connected to the rotating shaft ball head 132 by one or a combination of assembly methods such as clamping, gluing, riveting, and threading. The other end of the connecting arm 133 can also be connected to the first light source assembly 14 by one or a combination of assembly methods such as clamping, gluing, and threading, so that the first light source assembly 14 can rotate relative to the bracket assembly 12 via the rotating shaft assembly 13. The embodiment of the present application uses the example of riveting the connecting arm 133 and the rotating shaft ball head 132, and the example of threading the connecting arm 133 and the first light source assembly 14. Of course, the connecting arm 133 and the rotating shaft ball head 132 can also be integrally formed structural components.

[0043] In this manner, a user can operate the lighting device 10 with one hand or two hands, and the first light source assembly 14 can rotate relative to the bracket assembly 12 at least in the XY plane. That is, the first light source assembly 14 can rotate at least in the horizontal direction (with the Earth as a reference). The angle at which the first light source assembly 14 can rotate relative to the bracket assembly 12 in the XY plane can be any value within the closed interval [0°, 360°].

[0044] In some other embodiments, the shaft assembly 13 may further include a damping block 134 and an elastic member 135 disposed within the shaft sleeve 131. The damping block 134 and the elastic member 135 may both be hollow structures, and the wire 15 is passed through the damping block 134 and the elastic member 135 to allow the wire 15 to pass through the shaft assembly 13.

[0045] One end of the elastic member 135 is connected to the damping block 134, and the other end of the elastic member 135 is connected to the bracket assembly 12, so that the damping block 134 can abut against the shaft ball head 132, and then the shaft ball head 132 can abut against the shaft sleeve 131. At this time, the rotational mating surface between the damping block 134 and the shaft ball head 132 can be a spherical surface. With this arrangement, when the first light source assembly 14 rotates to a certain angle in the XY plane relative to the bracket assembly 12, the elastic member 135 can cause the shaft ball head 132 to abut against the shaft sleeve 131, so that the rotation angle of the first light source assembly 14 can be maintained, thereby making it easier for users to use the lighting device 10.

[0046] Furthermore, the damping block 134 can be made of a material such as polyformaldehyde (POM) or polyamide (PA) to provide self-lubrication, thereby increasing the smoothness of rotation of the shaft ball head 132 relative to the shaft sleeve 131 and the damping block 134. The elastic member 135 can be a spring or a hose made of an elastic material such as polyurethane.

[0047] After extensive research, the inventors of this application discovered that when the electrical wire 15 is embedded within the lighting device 10, it not only passes through the base assembly 11, the bracket assembly 12, the shaft assembly 13, and the first light source assembly 14, but also has one end fixed relative to the base assembly 11 (and the bracket assembly 12), while the other end is fixed relative to the first light source assembly 14. This arrangement allows the electrical wire 15 to rotate with the first light source assembly 14 in the XY plane relative to the bracket assembly 12. Furthermore, because the length of the electrical wire 15 is generally fixed, when the first light source assembly 14 rotates in one direction or in opposite directions, the electrical wire 15 (particularly the portion passing through the bracket assembly 12 and the shaft assembly 13) can easily become "tightened," generating internal stress, which can lead to breakage. To address this issue, the shaft assembly 13 in this embodiment of the present application can further include a slip ring 136, through which the electrical wire 15 is routed at the shaft assembly 13, to alleviate the aforementioned internal stress and even breakage issues associated with the electrical wire 15. The slip ring 136 may be located on a side of the rotating shaft ball head 132 away from the first light source assembly 14 and may pass through the elastic member 135 .

[0048] In some embodiments, the slip ring 136 may include an electrically connected stator 1361 and a rotor 1362. The stator 1361 may be assembled and connected to the bracket assembly 12 using one or a combination of assembly methods, such as snap-fitting, gluing, riveting, and threading. Furthermore, the rotor 1362 may be rotatable relative to the stator 1361. For example, the rotor 1362 may be inserted into the stator 1361, and the fitting relationship between the two may be a clearance fit or a transition fit. A lubricant may also be provided between the two to enable the rotor 1362 to easily rotate relative to the stator 1361 under external force.

[0049] Correspondingly, the electric wire 15 may include a first electric wire portion 151 and a second electric wire portion 152. One end of the first electric wire portion 151 is electrically connected to the stator 1361, and one end of the second electric wire portion 152 is electrically connected to the rotor 1362, so that the electric wire 15 is switched through the slip ring 136. Furthermore, the other end of the second electric wire portion 152 is electrically connected to the first light source assembly 14. At this time, the first electric wire portion 151 is passed through the bracket assembly 12 and can remain relatively stationary with the bracket assembly 12. The second electric wire portion 152 is passed through the shaft ball head 132 and the connecting arm 133, and can rotate with the first light source assembly 14 to drive the rotor 1362 relative to the stator 1361, thereby releasing the internal stress that may be generated in the electric wire 15. In other words, due to the presence of the slip ring 136, excessive internal stress will not be generated in the electric wire 15, thereby effectively improving the problem of breakage of the electric wire 15.

[0050] Joint Reference Figures 6 to 9 , Figure 6 yes Figure 1 A schematic diagram of the exploded structure of another embodiment of the rotating shaft assembly, Figure 7 yes Figure 6 A schematic structural diagram of an embodiment of a rotating shaft ball head. Figure 8 yes Figure 1 Schematic diagram of the projection structure of the lighting device in the XZ plane when in use, Figure 9 yes Figure 1 Schematic diagram of the projection structure of the lighting device in another use state on the XZ plane. It should be noted that, Figure 6 The bracket assembly and the first light source assembly are shown schematically, mainly to implicitly illustrate a possible assembly relationship between the shaft assembly, the bracket assembly and the first light source assembly. Figure 6 and Figure 7 The wires are shown in the figure to implicitly illustrate a possible routing of the wires in the bracket assembly and the shaft assembly. Figure 8 The mark θ is shown in the figure mainly to facilitate the representation of the angle between the first light source assembly and the bracket assembly. Figure 8 The use state of the lighting device shown may correspond to θ=90°, Figure 9 The illustrated usage state of the lighting device may correspond to θ=0°.

[0051] The main difference from the above embodiment is that in this embodiment, the shaft sleeve 131 is provided with a guide groove 1311. During the rotation of the shaft ball head 132 relative to the shaft sleeve 131, the connecting arm 133 can be inserted into the guide groove 1311, so that the first light source assembly 14 can be rotated to an angle with the bracket assembly 12 that is less than or equal to a first angle threshold. The first angle threshold may be less than or equal to 45°, preferably less than or equal to 30°, and more preferably less than or equal to 10°. It should be noted that the minimum value of the first angle threshold may be 0°. With such an arrangement, when the lighting device 10 is not in use, the first light source assembly 14 can be rotated to bring it close to the bracket assembly 12, thereby reducing the volume of the lighting device 10 in space for easy storage of the lighting device 10.

[0052] In this embodiment, the bracket assembly 12 may include a support 121 and a cushion 122. One end of the support 121 is connected to the shaft assembly 13 (specifically, the shaft sleeve 131, the elastic member 135, the slip ring 136, etc.), and the other end is connected to the base assembly 11 (specifically, the ballast 1113). The support 121 may be hollow, with the wires 15 threaded through the support 121 to facilitate threading through the bracket assembly 12. Furthermore, the cushion 122 is disposed at least at the end of the support 121 facing away from the first light source assembly 14, i.e., the end of the bracket 121 closest to the base 11. This arrangement allows the cushion 122 to stop the first light source assembly 14 when the angle between the first light source assembly 14 and the bracket assembly 12 is less than or equal to a first angle threshold. This prevents the first light source assembly 14 and the shaft assembly 13 from being broken due to over-rotation, thereby protecting the first light source assembly 14 and the shaft assembly 13.

[0053] In some embodiments, the number of guide grooves 1311 can be one. For example, one guide groove 1311 can be specifically located in the XZ plane and on the right side of the axis of the bracket assembly 12, so that the first light source assembly 14 can be rotated downward in the XZ plane to an angle of 0° with the bracket assembly 12. However, when the first light source assembly 14 is rotated upward in the XZ plane to an angle greater than 90° with the bracket assembly 12, the connecting arm 133 will be stopped by the rotating shaft sleeve 131, causing the first light source assembly 14 to be unable to continue to rotate upward in the XZ plane. At this time, the angle at which the first light source assembly 14 rotates relative to the bracket assembly 12 in the XZ plane can be any value within the closed interval [0°, 90°].

[0054] In some other embodiments, the number of guide grooves 1311 can be two. For example, the two guide grooves 1311 can be located in the XZ plane, one on either side of the axis of the bracket assembly 12, so that the first light source assembly 14 can rotate downward in the XZ plane to a 0° angle with the bracket assembly 12. In this case, the connecting arm 133 is inserted into the (right) guide groove 1311. Furthermore, the first light source assembly 14 can also rotate upward in the XZ plane to a 180° angle with the bracket assembly 12. In this case, the connecting arm 133 is inserted into the other (left) guide groove 1311. With this arrangement, the angle of rotation of the first light source assembly 14 relative to the bracket assembly 12 in the XZ plane can be any value within the closed interval [0°, 180°]. It should be noted that after the first light source assembly 14 continues to rotate upward in the XZ plane to the left of (the axis of) the bracket assembly 12, the angle of rotation of the first light source assembly 14 relative to the bracket assembly 12 in the XZ plane still falls within the closed interval [0°, 180°].

[0055] Through the above-described method, in this embodiment, based on the above-described embodiment, the first light source assembly 14 can at least further rotate in the XZ plane relative to the bracket assembly 12, that is, the first light source assembly 14 can at least further rotate in the vertical direction (with the Earth as a reference). Furthermore, when the first light source assembly 14 rotates to a certain angle in the XZ plane relative to the bracket assembly 12, the elastic member 135 can use the damping block 134 to cause the rotating shaft ball head 132 to abut against the rotating shaft sleeve 131, so that the rotation angle of the first light source assembly 14 can be maintained, thereby facilitating the user to use the lighting device 10.

[0056] Furthermore, when the first light source assembly 14 is rotated to an angle greater than or equal to a second angle threshold with the bracket assembly 12, the control panel 112 can make the first light source assembly 14 illuminated. The second angle threshold is greater than the first angle threshold. Preferably, the second angle threshold can be any value within the closed interval [80°, 180°]. More preferably, the second angle threshold can be any value within the closed interval [90°, 180°]. With this arrangement, the user can adjust the angle between the first light source assembly 14 and the bracket assembly 12 to 90°, 120°, 135°, 180°, etc., and can make the first light source assembly 14 illuminated through the control panel 112, so that the lighting device 10 can meet the user's daily lighting needs.

[0057] Based on the detailed description above, when the angle between the first light source assembly 14 and the bracket assembly 12 is 90°, the axial directions of the connecting arm 133 and the rotating shaft ball head 132 are approximately aligned with the axial direction of the bracket assembly 12 (e.g., both are along the Z direction). In this case, the first light source assembly 14 can at least rotate relative to the bracket assembly 12 in the XY plane, and the wires 15 can also be routed normally within the bracket assembly 12 and the rotating shaft assembly 13. However, when the angle between the first light source assembly 14 and the bracket assembly 12 deviates from 90°, for example, when the angle between the two is 0° or 180°, the axial direction of the rotating shaft ball head 132 will become approximately perpendicular to the axial direction of the bracket assembly 12, which will affect the normal routing of the wires 15. To this end, this embodiment improves the structure of the rotating shaft ball head 132 based on the above embodiment to reduce interference with the wires 15 when the rotating shaft ball head 132 rotates relative to the rotating shaft sleeve 131 in the XZ plane.

[0058] In some embodiments, as Figure 7 As shown, the shaft ball head 132 may include a spherical surface 1321 and a first surface 1322 and a second surface 1323 disposed opposite to each other. The spherical surface 1321 is connected to the first surface 1322 and the second surface 1323 and is primarily used for rotational engagement with the shaft sleeve 131, the damping block 134, and the like. Furthermore, relative to the spherical surface 1321, both the first surface 1322 and the second surface 1323 may be planar. The first surface 1322 and the second surface 1323 may be parallel to each other. This arrangement is equivalent to removing two solid parts from a solid sphere. In this case, when the shaft ball head 132 is engaged with the shaft sleeve 131, a first clearance zone 1324 is formed between the first surface 1322 and the shaft sleeve 131, and a second clearance zone 1325 is formed between the second surface 1323 and the shaft sleeve 131.

[0059] The spherical surface 1321 defines a main hole 1326, the first surface 1322 defines a first branch hole 1327, and the second surface 1323 defines a second branch hole 1328. The axis of the main hole 1326 can be along the Z direction; the axes of the first branch hole 1327 and the second branch hole 1328 can be along the Y direction, and their axes can overlap. In this case, the axes can all pass through the center of the rotating shaft ball head 132. Furthermore, the main hole 1326, the first branch hole 1327, and the second branch hole 1328 are connected.

[0060] It should be noted that due to Figure 6 and Figure 7Due to the medium viewing angle, only one side of the pivot ball head 132 is visible, while the structure on the other side is not. Furthermore, because the pivot ball head 132 can be symmetrical about the XZ plane, the structures on both sides of the pivot ball head 132 can be identical, that is, the structure on the invisible side can be the same as the structure on the visible side.

[0061] The connecting arm 133 can be inserted into the main hole 1326. When the wire 15 (specifically, the second wire portion 152) passes through the connecting arm 133 and into the pivot ball head 132, it can be split into two strands. One strand passes through the first branch hole 1327 and avoids the first avoidance area 1324; the other strand passes through the second branch hole 1328 and avoids the second avoidance area 1325 before reuniting to form the wire 15 (specifically, the second wire portion 152). Furthermore, considering that the pivot assembly 13 may also be provided with a damping block 134, which in turn abuts the pivot ball head 132, after the wire 15 (specifically, the second wire portion 152) passes through the first and second branch holes 1327, 1327, it can be routed from both sides of the damping block 134, that is, bypassing the damping block 134, and then reunited to form the wire 15 (specifically, the second wire portion 152).

[0062] In other embodiments, the pivot ball 132 may include only one of the first surface 1322 and the second surface 1323. Accordingly, only one of the first and second clearance areas 1324 and 1325 is formed, and only one of the first and second branch holes 1327 and 1328 is provided. This arrangement allows the wire 15 (specifically, the second wire portion 152) to pass from the connecting arm 133 to the pivot ball 132 without having to split into two strands. Instead, it can pass through either the first and second branch holes 1327 and 1328.

[0063] Through the above method, when the shaft ball head 132 rotates relative to the shaft sleeve 131 in the XZ plane, the wire 15 (specifically, the second wire portion 152) rotates accordingly in the XZ plane (that is, it can bend in the XZ plane), thereby improving the interference of the shaft ball head 132 on the wire 15 when it rotates relative to the shaft sleeve 131 in the XZ plane.

[0064] Furthermore, other structures of this embodiment are the same as or similar to those of the above embodiments, and reference may be made to the detailed description of the above embodiments, which will not be repeated here.

[0065] See again Figure 8 and Figure 9 , Figure 8 The arrow A in the figure may indicate the main lighting direction of the first light source assembly when the lighting device is in this use state. Figure 9The arrow B in FIG. 1 may indicate the main lighting direction of the first light source assembly when the lighting device is in this use state.

[0066] In this embodiment, the lighting device 10 may further include a switch assembly 16. When the first light source assembly 14 rotates to an angle between the first light source assembly 14 and the bracket assembly 12 that is less than or equal to a first angle threshold, the switch assembly 16 may be in an on state.

[0067] The switch assembly 16 may include a trigger 161 and a sensor 162. One of the trigger 161 and the sensor 162 is disposed at the end of the first light source assembly 14 away from the bracket assembly 12, and the other is disposed at the end of the base assembly 11 or the bracket assembly 12 away from the first light source assembly 14. In this embodiment of the present application, the trigger 161 is disposed at the end of the first light source assembly 14 away from the bracket assembly 12, and the sensor 162 is disposed at the base assembly 11 as an example for illustrative description. In this case, the trigger 161 may be built into the first light source assembly 14, and the sensor 162 may be built into the base 11, so as to increase the consistency of the appearance and structure of the lighting device 10. Furthermore, when the first light source assembly 14 rotates to an angle between the first light source assembly 14 and the bracket assembly 12 that is less than or equal to a first angle threshold, the trigger 161 can trigger the sensor 162, causing the switch assembly 16 to be in the on state.

[0068] In some embodiments, the trigger 161 can be a magnet, specifically a permanent magnet. Generally, a magnet will form a spherical magnetic field in space, and the magnetic field strength of the spherical magnetic field will gradually weaken in the direction away from the magnet. At this time, when the first light source assembly 14 rotates relative to the bracket assembly 12 in the XZ plane, if the angle between the first light source assembly 14 and the bracket assembly 12 gradually decreases from 90° to 0° or from 180° to 0°, then the distance between the trigger 161 and the sensor 162 will also gradually decrease; while the magnetic field strength of the trigger 161 acting on the sensor 162 will gradually increase.

[0069] Furthermore, sensor 162 may be a Hall effect sensor. When the magnetic field strength exerted by a magnet on the Hall effect sensor is greater than or equal to a threshold magnetic field strength, the Hall effect sensor generates an induced current, which can be converted into a control signal to turn on switch assembly 16. Alternatively, sensor 162 may be a reed switch. When the magnetic field strength exerted by a magnet on the reed switch is greater than or equal to the threshold magnetic field strength, the reeds of the reed switch contact each other, turning switch assembly 16 on.

[0070] In the above manner, when the first light source assembly 14 is rotated to the angle between it and the bracket assembly 12 is less than or equal to the first angle threshold, in addition to facilitating the storage of the lighting device 10, the magnetic field strength of the trigger 161 acting on the sensor 162 can be greater than or equal to the magnetic field strength threshold to trigger the sensor 162, thereby enabling the switch assembly 16 to be in the on state.

[0071] It should be noted that the first angle threshold can be less than or equal to 45°, preferably less than or equal to 30°, and more preferably less than or equal to 10°. Furthermore, in addition to being related to the magnitude of the first angle threshold, the aforementioned magnetic field strength threshold is also related to factors such as the magnetic strength of trigger 161 itself and the sensitivity of trigger 162. Therefore, the specific magnitude of the aforementioned magnetic field strength threshold is not limited in the embodiments of the present application. In other words, the magnitude of the aforementioned magnetic field strength threshold can be reasonably designed based on the aforementioned factors.

[0072] In other embodiments, the sensor 162 may be a capacitive sensor, and the trigger 161 may be a dielectric. When the first light source assembly 14 rotates to an angle less than or equal to a first angle threshold with the bracket assembly 12, the trigger 161 and the sensor 162 are in close proximity or in direct contact, causing the capacitance of the sensor 162 to change. This capacitance change can be converted into a control signal, causing the switch assembly 16 to be in an on state.

[0073] In other embodiments, the sensor 162 may be an inductive sensor, and the trigger 161 may be a metal sheet. When the first light source assembly 14 rotates to an angle less than or equal to the first angle threshold with the bracket assembly 12, the trigger 161 and the sensor 162 are in close proximity or in direct contact. The trigger 161 generates eddy currents that dampen the oscillation of the sensor 162. This dampened oscillation can be converted into a control signal, turning the switch assembly 16 on.

[0074] Based on the above detailed description, when the angle between the first light source assembly 14 and the bracket assembly 12 is 90°, that is, the lighting device 10 is in Figure 8 In the state of use shown, the trigger 161 is far away from the sensor 162, and the sensor 162 cannot be triggered, that is, the switch assembly 16 is in the off state. When the angle between the first light source assembly 14 and the bracket assembly 12 is 0°, that is, the lighting device 10 is in the Figure 9 In the illustrated use state, the trigger 161 is very close to the sensor 162, and the sensor 162 can be triggered, that is, the switch assembly 16 is in the on state. At this time, the lighting device 10 switches between different use states, enabling it to have the function of a switch.

[0075] In some embodiments, the switch assembly 16 can be electrically connected to the first light source assembly 14. Specifically, when the switch assembly 16 is in the on state, the switch assembly 16 can turn on the first light source assembly 14. In this configuration, since the first light source assembly 14 is much larger in size than the switch button on the base assembly 11, when the user cannot quickly find the switch button (corresponding to the control panel 112) in the dark at night, or in other application scenarios, the user can rotate the first light source assembly 14 to be close to the bracket assembly 12 (such as Figure 9 The switch assembly 16 can also make the first light source assembly 14 light up, so that the lighting device 10 can provide lighting services for the user.

[0076] In other embodiments, the lighting device 10 can interact with household appliances such as air conditioners and televisions. The switch assembly 16 can serve as a remote switch for these household appliances. In this case, the lighting device 10 acts as a controller for these household appliances. This configuration allows users to turn these appliances on or off using the lighting device 10 when they cannot quickly locate the controller, or in other application scenarios.

[0077] Joint Reference Figure 10 and Figure 11 , Figure 10 : is a schematic diagram of the projection structure of another embodiment of the lighting device provided by the present application on the XZ plane, Figure 11 yes Figure 10 Schematic diagram of the projection structure of the lighting device in another use state on the XZ plane. It should be noted that, Figure 10 The mark θ is shown in the figure mainly to facilitate the representation of the angle between the first light source assembly and the bracket assembly. Figure 10 The use state of the lighting device shown may correspond to θ=90°, Figure 11 The use state of the lighting device shown may correspond to θ=0°. Figure 10 The arrow C in the figure may indicate that the first light source assembly is in a lit state and its main lighting direction when the lighting device is in this use state. Figure 11 The arrow D in the figure may indicate that the second light source assembly is in a lit state and its main lighting direction when the lighting device is in this use state.

[0078] The main difference from the above embodiment is that in this embodiment, the lighting device 10 further includes a second light source assembly 17. The second light source assembly 17 is connected to the first light source assembly 14 so as to rotate with the first light source assembly 14 relative to the bracket assembly 12. In other words, the second light source assembly 17 and the first light source assembly 14 can rotate as a whole relative to the bracket assembly 12.

[0079] In some embodiments, the switch assembly 16 is electrically connected to at least the second light source assembly 17 of the first light source assembly 14 and the second light source assembly 17. When the switch assembly 16 is in an on state, the switch assembly 16 can cause at least the second light source assembly 17 of the first light source assembly 14 and the second light source assembly 17 to be illuminated. For example, the switch assembly 16 is electrically connected to the second light source assembly 17, and when the switch assembly 16 is in an on state, the switch assembly 16 can cause the second light source assembly 17 to be illuminated. For another example, the switch assembly 16 is electrically connected to the first light source assembly 14 and the second light source assembly 17, and when the switch assembly 16 is in an on state, the switch assembly 16 can cause the first light source assembly 14 and the second light source assembly 17 to be illuminated.

[0080] In some other embodiments, the control board 112 is further electrically connected to at least the first light source assembly 14 or the second light source assembly 17. When the first light source assembly 14 rotates to an angle greater than or equal to a second angle threshold with respect to the bracket assembly 12, the control board 112 can illuminate at least the first light source assembly 14 or the second light source assembly 17. The second angle threshold is greater than the first angle threshold. For example, the control board 112 is electrically connected to the first light source assembly 14, and when the first light source assembly 14 rotates to an angle greater than or equal to the second angle threshold with respect to the bracket assembly 12, the control board 112 can illuminate the first light source assembly 14. For another example, the control board 112 is electrically connected to the first light source assembly 14 and the second light source assembly 17, and when the first light source assembly 14 rotates to an angle greater than or equal to the second angle threshold with respect to the bracket assembly 12, the control board 112 can illuminate the first light source assembly 14 and the second light source assembly 17.

[0081] In this embodiment, when the first light source assembly 14 rotates to an angle greater than or equal to the second angle threshold between the first light source assembly 14 and the bracket assembly 12, the control board 112 can turn on the first light source assembly 14. When the first light source assembly 14 rotates to an angle less than or equal to the first angle threshold between the first light source assembly 14 and the bracket assembly 12, the switch assembly 16 can turn on the second light source assembly 17.

[0082] In the above manner, when the lighting device 10 is in Figure 10 In the usage state shown, the user can turn on the first light source assembly 14 through the control panel 112, so that the lighting device 10 can provide lighting services for the user. Further, when the user cannot quickly find the switch button (corresponding to the control panel 112) on the base assembly 11 in the dark at night, or in other application scenarios, the user can turn the first light source assembly 14 (and the second light source assembly 17) close to the bracket assembly 12 (such as Figure 11In the usage state shown in FIG, the switch assembly 16 can make the second light source assembly 17 light up, so that the lighting device 10 can provide lighting services for the user.

[0083] In some embodiments, as Figure 10 and Figure 11 As shown, the bracket assembly 12 (also known as the shaft assembly 13) can be located between the first light source assembly 14 and the second light source assembly 17, that is, the first light source assembly 14 and the second light source assembly 17 are separated on both sides of the bracket assembly 12 (also known as the shaft assembly 13) in the XZ plane.

[0084] It should be noted that when the second light source assembly 17 is in the illuminated state, its main illumination direction in the XZ plane can be leftward, rightward, or both. This embodiment is described illustratively using the example of the main illumination direction of the second light source assembly 17 being leftward.

[0085] In some other embodiments, such as Figure 12 and Figure 13 As shown, the first light source assembly 14 and the second light source assembly 17 are located on the same side of the bracket assembly 12 , for example, both are located on the right side of the bracket assembly 12 in the XZ plane, and the first light source assembly 14 and the second light source assembly 17 are arranged back to back.

[0086] It should be noted that Figure 12 The mark θ is shown in the figure mainly to facilitate the representation of the angle between the first light source assembly and the bracket assembly. Figure 12 The use state of the lighting device shown may correspond to θ=90°, Figure 13 The use state of the lighting device shown may correspond to θ=0°. Figure 12 The arrow E in the figure may indicate that the first light source assembly is in a lit state and its main lighting direction when the lighting device is in this use state. Figure 13 The arrow F in the figure may indicate that the second light source assembly is in a lit state and its main lighting direction when the lighting device is in this use state.

[0087] Furthermore, other structures of this embodiment are the same as or similar to those of the above embodiments, and reference may be made to the detailed description of the above embodiments, which will not be repeated here.

[0088] Joint Reference Figure 14 and Figure 15 , Figure 14 yes Figure 10 Schematic diagram of the exploded structure of the first light source assembly and the second light source assembly, Figure 15 yes Figure 14 Schematic diagram of the cross-sectional structure of the first light source assembly and the second light source assembly along the XZ plane. It should be noted that, Figure 14The shaft assembly is shown in the figure mainly to implicitly illustrate a possible assembly relationship between the first light source assembly and the second light source assembly and the shaft assembly. Figure 14 The wires are shown schematically mainly to implicitly illustrate a possible routing of the wires in the first light source assembly, the second light source assembly, and the rotating shaft assembly.

[0089] The first light source assembly 14 and the second light source assembly 17 can be a strip structure, a disk structure, a ring structure, etc., so as to meet the user's daily lighting needs. Among them, the embodiment of the present application is illustratively described by taking the first light source assembly 14 as a strip structure and the second light source assembly 17 as a ring structure as an example.

[0090] In some embodiments, the first light source assembly 14 may include a first lampshade 141, a first cover plate 142 and a light bar 143. The first cover plate 142 can be assembled with the first lampshade 141 by one of the assembly methods such as snap-on, gluing, riveting, and threaded connection, and a combination thereof, and the two can form a cavity structure with a certain volume; and the light bar 143 is accommodated in the cavity structure. At this time, the light bar 143 can be laid along the X direction. The light bar 143 can be electrically connected to the wire 15 (specifically, the second wire portion 152) so that the light bar 143 can emit light. Furthermore, the first lampshade 141 can be made of a light-transmitting material, and the first cover plate 142 can be made of a light-shielding material, so that the light emitted by the light bar 143 can pass through the first lampshade 141 as much as possible, so that the first light source assembly 14 has a certain lighting direction. Among them, a reflective sheet or reflective material can also be provided on the side of the first cover plate 142 close to the first lampshade 141, so that the light emitted by the light strip 143 can be emitted as much as possible along the lighting direction of the first light source assembly 14, thereby increasing the lighting intensity of the first light source assembly 14 and reducing the energy consumption of the first light source assembly 14.

[0091] Furthermore, since the size of the first light source assembly 14 in the Z direction may be relatively small, in order to facilitate the connection between the first light source assembly 14 and the shaft assembly 13 (specifically, the connecting arm 133), or to increase the reliability of the connection between the two, the first light source assembly 14 may further include a mounting plate 144. The mounting plate 144 is located between the first lampshade 141 and the first cover plate 142, and is connected to at least one of the first lampshade 141 and the first cover plate 142. Furthermore, the mounting plate 144 is provided with a third mounting hole 1441 ( Figure 14 The connecting arm 133 can be threadedly connected to the mounting plate 144 via the third mounting hole 1441, thereby achieving assembly between the first light source assembly 14 and the rotating assembly 13.

[0092] In some embodiments, the second light source assembly 17 may include a second lampshade 171, a second cover plate 172, and a light ring 173. The second cover plate 172 may be assembled with the second lampshade 171 by one of the assembly methods such as snap-on, gluing, riveting, and threaded connection, and a combination thereof, and the two may form a cavity structure with a certain volume; and the light ring 173 is accommodated in the cavity structure. The light ring 173 may be electrically connected to the wire 15 (specifically, the second wire portion 152) so that the light ring 173 can emit light. Furthermore, the second lampshade 171 may be made of a light-transmitting material, and the second cover plate 172 may be made of a light-shielding material, so that the light emitted by the light ring 173 can pass through the second lampshade 171 as much as possible, thereby allowing the second light source assembly 17 to have a certain lighting direction. Among them, a reflective sheet or reflective material can also be provided on the side of the second cover plate 172 close to the second lampshade 171, so that the light emitted by the lamp ring 173 can be emitted as far as possible along the lighting direction of the second light source assembly 17, thereby increasing the lighting intensity of the second light source assembly 17 and reducing the energy consumption of the second light source assembly 17.

[0093] Furthermore, since the second light source assembly 17 can be connected to the first light source assembly 14, many of the above-mentioned structural components can be integrally formed structural components or shared, thereby simplifying the structure of the lighting device 10. For example, the second lampshade 171 and the first lampshade 141 can be integrally formed structural components, and the second cover plate 172 and the first cover plate 142 can also be integrally formed structural components. In this case, the second lampshade 171 and the first lampshade 141 are formed as a whole, and a fourth mounting hole 145 is formed thereon. The fourth mounting hole 145 and the third mounting hole 1441 can be coaxial in the Z direction to facilitate the connection arm 133 to pass through the first lampshade 141 (and the second lampshade 171) and be assembled and connected to the mounting plate 144. For another example, the second light source assembly 17 and the first light source 14 can share the mounting plate 144, so that the second light source assembly 17 and the first light source assembly 14 can be assembled as a whole with the rotating assembly 13.

[0094] Since the light ring 173 is ring-shaped, in order to facilitate the installation of the light ring 173, the second light source assembly 17 may further include an auxiliary plate 174. The auxiliary plate 174 is located between the second lampshade 171 and the second cover plate 172, and can be connected to at least one of the second lampshade 171 and the second cover plate 172. Furthermore, the auxiliary plate 174 is provided with a first annular protrusion 1741, and the second lampshade 171 is provided with a second annular protrusion 1711. The second annular protrusion 1711 can be passed through the first annular protrusion 1741, and a certain distance is left between the two. It is arranged in this way that after the auxiliary plate 174 and the second lampshade 171 are assembled, an annular receiving groove (not marked in the figure) can be formed between the second annular protrusion 1711 and the first annular protrusion 1741. At this time, the light ring 173 can be accommodated in the above-mentioned receiving groove. The side of the first annular protrusion 1741 adjacent to the second annular protrusion 1711 may be provided with a reflective sheet or coated with reflective material to ensure that the light emitted by the light ring 173 is emitted as closely as possible along the illumination direction of the second light source assembly 17, thereby increasing the illumination intensity of the second light source assembly 17 and reducing the energy consumption of the second light source assembly 17. Furthermore, the auxiliary plate 174 defines a fifth mounting hole 1742. The fifth mounting hole 1742 may be coaxial with the fourth mounting hole 145 and the third mounting hole 1441 in the Z direction, facilitating the connection arm 133 to pass through the first lampshade 141 (and the second lampshade 171) and the auxiliary plate 174 for assembly and connection with the mounting plate 144.

[0095] It should be noted that, for the embodiment or implementation in which the lighting device 10 described in this application only includes the first light source assembly 14, the specific structure of the first light source assembly 14 may be the same as or similar to that of this embodiment, and reference may be made to the detailed description of this embodiment.

[0096] The above description is only part of the embodiments of the present application and does not limit the scope of protection of the present application. Any equivalent device or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. A lighting device, characterized in that: The lighting device includes a bracket assembly, a shaft assembly, a first light source assembly and an electric wire. One end of the shaft assembly is connected to the bracket assembly, and the other end of the shaft assembly is connected to the first light source assembly, so that the first light source assembly can rotate relative to the bracket assembly through the shaft assembly. The bracket assembly and the shaft assembly are both hollow structures. The electric wire is passed through the bracket assembly and the shaft assembly. The shaft assembly includes a slip ring. The electric wire is transferred through the slip ring at the shaft assembly and is electrically connected to the first light source assembly; wherein, The shaft assembly further includes a shaft sleeve, a shaft ball head, and a connecting arm. The shaft sleeve is sleeved on the slip ring and connected to the bracket assembly. The shaft ball head is movably connected to the shaft sleeve. One end of the connecting arm is connected to the shaft ball head, and the other end of the connecting arm is connected to the first light source assembly. The rotating shaft assembly further includes a damping block and an elastic member disposed within the rotating shaft sleeve, one end of the elastic member being connected to the damping block, and the other end of the elastic member being connected to the bracket assembly, thereby enabling the damping block to abut against the rotating shaft ball head, and the slip ring being disposed through the elastic member; The electric wire is divided into two strands when passing through the connecting arm to the rotating shaft ball head. The two strands of electric wire are respectively passed through the rotating shaft ball head and then passed around the two sides of the damping block and then merged into one strand of electric wire.

2. The lighting device according to claim 1, characterized in that The slip ring includes an electrically connected stator and a rotor, the stator is connected to the bracket assembly, and the rotor can rotate relative to the stator. The electric wire includes a first electric wire portion and a second electric wire portion, one end of the first electric wire portion is electrically connected to the stator, one end of the second electric wire portion is electrically connected to the rotor, and the other end of the second electric wire portion is electrically connected to the first light source assembly.

3. The lighting device according to claim 1, wherein The shaft sleeve is provided with a guide groove. During the rotation of the shaft ball head relative to the shaft sleeve, the connecting arm can be inserted into the guide groove so that the first light source assembly can be rotated to an angle between the first light source assembly and the bracket assembly that is less than or equal to a first angle threshold.

4. The lighting device according to claim 2, characterized in that The rotating shaft ball head includes a spherical surface and a first surface and a second surface arranged opposite to each other. The spherical surface is connected to the first surface and the second surface. The spherical surface is provided with a main hole, the first surface is provided with a first branch hole, and the second surface is provided with a second branch hole. The main hole, the first branch hole, and the second branch hole are connected. The connecting arm is inserted into the main hole. A first avoidance area is formed between the first surface and the rotating shaft sleeve, and a second avoidance area is formed between the second surface and the rotating shaft sleeve. When the second electric wire portion is passed from the connecting arm to the rotating shaft ball head, it is divided into two branches. One branch passes through the first branch hole and avoids through the first avoidance area. The other branch passes through the second branch hole and avoids through the second avoidance area, and then re-merges into the second electric wire portion.

5. The lighting device according to claim 3, characterized in that The lighting device further includes a switch assembly, and when the first light source assembly rotates to an angle between the first light source assembly and the bracket assembly that is less than or equal to the first angle threshold, the switch assembly can be in an on state.

6. The lighting device according to claim 5, characterized in that The switch assembly includes a sensor and a trigger, one of the sensor and the trigger is arranged at the end of the first light source assembly away from the bracket assembly, and the other is arranged at the end of the bracket assembly away from the first light source assembly. When the first light source assembly is rotated to an angle between it and the bracket assembly is less than or equal to the first angle threshold, the trigger can trigger the sensor to make the switch assembly conductive.

7. The lighting device according to claim 6, characterized in that The trigger is a magnet. When the first light source assembly rotates to an angle less than or equal to the first angle threshold between the first light source assembly and the bracket assembly, the magnetic field strength of the magnet acting on the sensor is greater than or equal to the magnetic field strength threshold, thereby triggering the sensor, thereby enabling the switch assembly to be in the on state.

8. The lighting device according to claim 7, characterized in that The sensor is a Hall sensor. When the magnetic field strength of the magnet acting on the Hall sensor is greater than or equal to the magnetic field strength threshold, the Hall sensor generates an induced current to turn on the switch component. Alternatively, the sensor is a reed switch, and when the magnetic field strength of the magnet acting on the reed switch is greater than or equal to the magnetic field strength threshold, the reeds of the reed switch contact each other, causing the switch assembly to be in a conducting state.

9. The lighting device according to claim 5, characterized in that The lighting device also includes a second light source assembly, which is connected to the first light source assembly to follow the first light source assembly in rotation relative to the bracket assembly. The switch assembly is electrically connected to at least the second light source assembly of the first light source assembly and the second light source assembly. When the switch assembly is in the on state, the switch assembly can make at least the second light source assembly of the first light source assembly and the second light source assembly be in the illuminated state.

10. The lighting device according to claim 9, characterized in that The lighting device also includes a base assembly, which is connected to an end of the bracket assembly away from the first light source assembly. The base assembly includes a fixing seat and a control panel arranged on the fixing seat. The control panel is electrically connected to at least the first light source assembly of the first light source assembly and the second light source assembly. When the first light source assembly is rotated to an angle greater than or equal to a second angle threshold with the bracket assembly, the control panel can make at least the first light source assembly of the first light source assembly and the second light source assembly be in a lighting state; wherein, the second angle threshold is greater than the first angle threshold.

11. The lighting device according to claim 10, characterized in that When the first light source assembly is rotated to an angle greater than or equal to the second angle threshold between it and the bracket assembly, the control panel can enable the first light source assembly to be in a lit state; when the first light source assembly is rotated to an angle less than or equal to the first angle threshold between it and the bracket assembly, the switch assembly can enable the second light source assembly to be in a lit state.

12. The lighting device according to claim 9, characterized in that The bracket assembly is located between the first light source assembly and the second light source assembly; Alternatively, the first light source assembly and the second light source assembly are located on the same side of the bracket assembly, and the first light source assembly and the second light source assembly are arranged back to back.

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