Lamp with adjustable illumination angle

Abstract

The application discloses a lamp with adjustable irradiation angle, which comprises a lamp holder and a lamp body. A driving power supply is arranged in the lamp holder, and a light-emitting assembly is arranged in the lamp body. The driving power supply is electrically connected with the light-emitting assembly through an electric wire. One of the lamp holder and the lamp body is provided with a pivot shaft, and the other is provided with a shaft connecting hole matched with the pivot shaft, so that the lamp body can rotate relative to the lamp holder around an axis. The pivot shaft is a hollow structure, and a channel for the electric wire to pass through is formed in the pivot shaft. When the lamp body rotates relative to the lamp holder, the axis provided by the pivot shaft remains unchanged, the extension direction of the electric wire in the hollow structure of the pivot shaft remains basically unchanged, and when the connecting end of the electric wire on the light-emitting assembly rotates with the lamp body, the local positions of each segment of the electric wire along the extension direction of the electric wire can adaptively provide a certain circumferential rotation angle, so that the interference on the connecting end of the electric wire is reduced, and the circuit safety is improved. Meanwhile, the electric wire is hidden in the pivot shaft, and the appearance is improved.

Description

Technical Field

[0001] This application relates to the field of lighting fixtures, and in particular to a lighting fixture with an adjustable illumination angle. Background Technology

[0002] Lighting fixtures are widely used in contemporary lighting scenarios. To meet user needs, manufacturers have developed and provided lighting fixtures with adjustable beam angles. For example, Chinese Patent Publication No. CN222688095U discloses a compact, axially flip-able, wirelessly dimming and color-adjustable magnetic lighting fixture. This lighting fixture includes a lamp holder and a rotating body that can rotate relative to the lamp holder. After the user fixes the lamp holder in a designated position, they can operate the rotating body to rotate it relative to the lamp holder, thereby changing the beam angle of the lighting fixture.

[0003] Clearly, in the above technical solution, the light-emitting component needs to be housed within the rotating body of the lamp, while the power cord is located inside the lamp holder. When the rotating body of the lamp has the function of rotating relative to the lamp holder, there is a rotational gap between the rotating body and the lamp holder. When the light-emitting component needs to be electrically connected to the power cord, the conventional approach is to place a wire in the rotational gap and allow the wire to pass through both the lamp holder and the rotating body of the lamp to provide power to the light-emitting component. However, this design can easily affect the aesthetics of the lighting fixture and is detrimental to the safety of the circuit connection when the rotation angle of the rotating body is large. Utility Model Content

[0004] Therefore, it is necessary to provide a lamp with an adjustable illumination angle to address the aforementioned technical problems.

[0005] An adjustable illumination angle lamp includes a lamp holder and a lamp body. The lamp holder contains a driving power supply, and the lamp body contains a light-emitting component. The driving power supply and the light-emitting component are electrically connected via wires. One of the lamp holder and the lamp body has a pivot shaft, and the other has a shaft connection hole that mates with the pivot shaft, so that the lamp body can rotate relative to the lamp holder about an axis. The pivot shaft is a hollow structure, and its interior forms a channel for the wires to pass through.

[0006] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0007] Optionally, it may also include an anti-detachment part and an elastic part, wherein the anti-detachment part is used to prevent the pivot shaft from disengaging from the shaft connection hole, and the elastic part provides an elastic force to the anti-detachment part.

[0008] Optionally, the anti-detachment part is a latching protrusion provided on the elastic part, and the elastic part is an elastic arm integrally formed with the pivot shaft.

[0009] Optionally, there are multiple elastic arms arranged at circumferential intervals, and each elastic arm is provided with the locking protrusion.

[0010] Optionally, a positioning structure is provided between the lamp holder and the lamp body to keep the lamp body at the adjusted angle.

[0011] Optionally, the positioning structure includes a toothed ring arranged circumferentially and ratchet teeth that mesh with the toothed ring.

[0012] Optionally, the ratchet is elastic and can pass over each tooth of the gear ring.

[0013] Optionally, the lamp holder includes a first tube shell and a first end cap that encloses both ends thereof, and the lamp body includes a second tube shell and a second end cap that encloses both ends thereof; one of the first end cap and the second end cap is provided with the pivot shaft, and the other is provided with the shaft connection hole, and the lamp body is rotatably mounted between the two first end caps.

[0014] Optionally, the first end cover has a wire hole through which the power supply wire passes out of the lamp holder.

[0015] Optionally, a decorative cover may also be included to cover the outside of the first end cap.

[0016] The adjustable illumination angle luminaire of this application has at least the following technical effects: When the lamp body rotates relative to the lamp holder, the axis provided by the pivot remains unchanged, and the extension direction of the wires within the hollow structure of the pivot remains essentially unchanged. As the connection ends of the wires on the light-emitting component rotate with the lamp body, the local positions of each segment of the wire along its extension direction can adaptively provide a certain circumferential angle, thereby reducing interference to the connection ends of the wires and improving circuit safety. Simultaneously, the wires are concealed within the pivot, enhancing aesthetics. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an adjustable illumination angle lamp in one embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the lamp body after it has rotated relative to the lamp holder; Figure 3 for Figure 1 Enlarged cross-sectional view; Figure 4 This is an assembly diagram of an adjustable illumination angle lamp according to one embodiment of this application; Figure 5 for Figure 4A partial assembly diagram; Figure 6 for Figure 5 A diagram from another angle; Figure 7 This is a schematic diagram of the structure of an adjustable illumination angle lamp in one embodiment of this application; Figure 8 for Figure 7 A partial assembly diagram; The annotations in the figure are explained as follows: 100. Lamp holder; 101. Slide rail; 110. Driver power supply; 120. First tube shell; 130. First end cap; 131. Limiting groove; 132. Wire passage hole; 140. Guide rail head; 150. Cover plate; 160. Pivot shaft; 161. Channel; 170. Elastic part; 171. Elastic arm; 180. Anti-slip part; 181. Locking protrusion; 182. Guide slope; 190. Ring arm; 191. Ratchet; 200. Lamp body; 210. Light-emitting component; 211. Aluminum substrate; 212. Single-point light source; 213. Light source bracket; 214. Lens; 215. Reflector; 220. Second tube shell; 221. Inner wall; 222. Countersunk groove; 230. Second end cap; 231. Limiting element; 240. Shaft connection hole; 250. Gear ring; 251. Tooth; 300, electrical wire; 400, decorative cover. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this application, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a system, product, or device that includes a series of units is not necessarily limited to those units that are explicitly listed, but may include other units that are not explicitly listed or that are inherent to such products or devices.

[0023] See Figures 1-4 One embodiment of this application provides an adjustable illumination angle lamp (hereinafter referred to as lamp), including a lamp holder 100 and a lamp body 200. The lamp holder 100 is provided with a driving power supply 110, and the lamp body 200 is provided with a light-emitting component 210. The driving power supply 110 and the light-emitting component 210 are electrically connected through wires.

[0024] The separate design of the driver power supply 110 and the light-emitting component 210 allows the lamp holder 100 and the lamp body 200 to form two independent heat dissipation systems, effectively controlling the temperature rise of their respective areas. This helps ensure stable operation of the lighting fixture at the optimal temperature and extends the product's lifespan. The driver power supply 110 is a component used to convert the external current of the lamp fixture into the internal current used by the light-emitting component 210. The external current can be, for example, common AC mains power, and the internal current can be, for example, low-voltage DC power. The lamp holder 100 and the lamp body 200 can be made of aluminum alloy to ensure a robust and lightweight structure. The surface is treated with electrostatic spraying to improve corrosion resistance and the overall quality of the product. The light-emitting component 210 can be a multi-point light source module, which includes an aluminum substrate 211, multiple single-point light sources 212 disposed on the aluminum substrate 211, a light source bracket 213 for mounting the single-point light sources 212, and a lens 214 and a reflector 215 arranged around the single-point light sources 212. The single-point light source 212 can use LEDs, and the multi-point light source module design makes it easy to assemble. Multiple point light source modules can be easily combined and installed, transforming a single point light source into a continuous, uniform strip of surface light source. This retains the precise focusing ability of a point light source while achieving the uniform wall-washing effect of a surface light source, increasing its practicality.

[0025] The lamp holder 100 includes a first housing 120 and first end caps 130 encapsulating both ends thereof. The lamp body 200 is rotatably mounted between the two first end caps 130. The lamp body 200 includes a second housing 220 and second end caps 230 encapsulating both ends thereof. The second end cap 230 is provided with a pivot shaft 160, and the first end cap 130 is provided with a shaft connection hole 240 that mates with the pivot shaft 160. The lamp also includes a decorative cover 400 for covering the outer side of the first end caps 130. The decorative cover 400 and the first end caps 130 are provided with a mutually engaging engagement structure.

[0026] Both the first shell 120 and the second shell 220 are tubular, and can be constructed using profiles. The first end cap 130 and the second end cap 230 can be fixed to the first shell 120 and the second shell 220 respectively with screws.

[0027] The second housing 220 has a flat inner wall 221 for mounting the light-emitting component 210. The inner wall 221 is formed by a groove 222 on the surface of the second housing 220, which facilitates the installation of the second end cover 230 and the installation and heat dissipation of the light-emitting component 210. The lamp has a guide rail head 140 for mounting itself to the track, so that the lamp is configured as a track lamp. The guide rail head 140 is snapped and fixed to the first housing 120. The lamp holder 100 also includes a cover plate 150 installed on the first housing 120. The cover plate 150 can be used to shield the driving power supply 110. The guide rail head 140 is fixed to the first housing 120, for example, by the first housing 120 having a sliding groove 101. The sliding groove 101 slides with the guide rail head 140 and restricts the guide rail head 140 from disengaging in the direction perpendicular to the extension of the sliding groove 101. The cover plate 150 is installed on the first tube shell 120 to limit the sliding of the guide rail head 140 relative to the first tube shell 120, thereby fixing the guide rail head 140 to the first tube shell 120. While ensuring safety and reliability, the connection is tight, safe and prevents detachment, and achieves fast and efficient assembly.

[0028] See Figures 4-6 One of the lamp holder 100 and the lamp body 200 is provided with a pivot shaft 160, and the other is provided with a shaft connection hole 240 that mates with the pivot shaft 160, so that the lamp body 200 can rotate relative to the lamp holder 100 about an axis X-X' provided by the pivot shaft 160, thereby adjusting the illumination angle of the lamp. For example, the lamp holder 100 is provided with a pivot shaft 160, and the lamp body 200 is provided with a shaft connection hole 240 that mates with the pivot shaft 160. Specifically, the first end cap 130 of the lamp holder 100 is provided with a pivot shaft 160, and the second end cap 230 of the lamp body 200 is provided with a shaft connection hole 240 that mates with the pivot shaft 160.

[0029] The lamp also includes an anti-detachment part 180 and an elastic part 170. The anti-detachment part 180 is used to prevent the pivot shaft 160 from disengaging from the shaft connection hole 240, and the elastic part 170 provides an elastic force to the anti-detachment part 180. The anti-detachment part 180 is a latching protrusion 181 provided on the elastic part 170, and the elastic part 170 is an elastic arm 171 integrally formed with the pivot shaft 160. The latching protrusion 181 is provided with a guide slope 182 to facilitate its insertion into the shaft connection hole 240. There are multiple elastic arms 171 arranged at intervals along the circumference, and each elastic arm 171 is provided with a latching protrusion 181. The anti-detachment part 180 and the second end cover 230 clamp and fix to both sides of the shaft connection hole 240 of the first end cover 130, restricting the movement of the lamp body 200. This allows the pivot shaft 160 of the second end cover 230 to rotate relative to the shaft connection hole 240 of the first end cover 130, thereby enabling the lamp body 200 to rotate relative to the lamp holder 100, thus changing the illumination angle of the lamp body 200.

[0030] A positioning structure is provided between the lamp holder 100 and the lamp body 200 to keep the lamp body 200 at the adjusted angle, facilitating precise control of the light direction. The positioning structure includes a circumferentially arranged toothed ring 250 and ratchet teeth 191 that mesh with the toothed ring 250. The ratchet teeth 191 are elastic and can pass over each tooth 251 of the toothed ring 250. For example, the second end cap 230 has an elastic annular arm 190, and the ratchet teeth 191 protrude from the annular arm 190, making the ratchet teeth 191 elastic.

[0031] A limit rotation limiting structure is also provided between the lamp holder 100 and the lamp body 200 to limit the rotation amplitude of the lamp body 200 relative to the lamp holder 100, thereby limiting the maximum rotation amplitude of the lamp body 200 and the lamp holder 100 relative to each other. For example, the allowable rotation amplitude is -90° to +90°, and the corresponding circumferential angle of the gear ring 250 is at least 180° to prevent damage to the ratchet 191 and the gear ring 250 due to over-fitting. The limit rotation limiting structure includes a limiting groove 131 formed in one of the lamp holder 100 and the lamp body 200, and a limiting member 231 in the other. For example, the limiting groove 131 is provided on the side of the first end cover 130 facing the second end cover 230, and the limiting member 231 is provided on the side of the second end cover 230 facing the first end cover 130. The lamp holder 100 and the lamp body 200 use the gear ring 250 and the ratchet 191 structure to achieve 90-degree clockwise and counterclockwise rotation of the lamp body 200. It achieves ultra-wide angle adjustment, greatly expanding the illumination range and meeting the key lighting needs of various scenarios.

[0032] See Figure 5 and Figure 6In one embodiment of this application, the pivot shaft 160 is a hollow structure, with a channel 161 through which the power supply line 300 passes. A wire hole 132 is provided on the first end cap 130 for the power supply line 300 to pass through the lamp holder 100. The integral structure formed by the elastic arms 171 constitutes the pivot shaft 160. The wire 300 enters the lamp body 200 through the hollow structure of the pivot shaft 160, providing power to the light-emitting component 210 and improving the aesthetics of the lamp. When the lamp body 200 rotates relative to the lamp holder 100, the axis provided by the pivot shaft 160 remains unchanged, and the extension direction of the wire 300 within the hollow structure of the pivot shaft 160 remains essentially unchanged. The wire 300 has a connection end electrically connected to the light-emitting component 210. When this connection end rotates with the lamp body 200, a certain circumferential angle can be adaptively provided at various local positions along the extension direction of the wire 300, thereby reducing interference to the connection end of the wire 300 and improving circuit safety.

[0033] See Figure 7 and Figure 8 In some embodiments, the lamp bodies 200 are configured as two that can rotate independently relative to the lamp holder 100, and the number of pivot shafts 160 and shaft connection holes 240 are correspondingly set to two, so that the lamp bodies 200 can rotate relative to the lamp holder 100 about their respective axes, and other structural adaptations are made.

[0034] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0035] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A lamp with an adjustable illumination angle, comprising a lamp holder and a lamp body, wherein a driving power supply is provided within the lamp holder, and a light-emitting component is provided within the lamp body, the driving power supply and the light-emitting component being electrically connected via wires; one of the lamp holder and the lamp body is provided with a pivot shaft, and the other is provided with a shaft connection hole that mates with the pivot shaft, so that the lamp body can rotate relative to the lamp holder about an axis; characterized in that: The pivot shaft is a hollow structure, with a channel formed inside for the wire to pass through.

2. The lamp according to claim 1, characterized in that, It also includes an anti-detachment part and an elastic part, wherein the anti-detachment part is used to prevent the pivot shaft from disengaging from the shaft connection hole, and the elastic part provides an elastic force to the anti-detachment part.

3. The lamp according to claim 2, characterized in that, The anti-detachment part is a latching protrusion provided on the elastic part, and the elastic part is an elastic arm integrally formed with the pivot shaft.

4. The lamp according to claim 3, characterized in that, There are multiple elastic arms, which are arranged at intervals along the circumference, and each elastic arm is provided with the locking protrusion.

5. The lamp according to claim 1, characterized in that, A positioning structure is provided between the lamp holder and the lamp body to keep the lamp body at the adjusted angle.

6. The lamp according to claim 5, characterized in that, The positioning structure includes a toothed ring arranged circumferentially and ratchet teeth that mesh with the toothed ring.

7. The lamp according to claim 6, characterized in that, The ratchet is elastic and can pass over each tooth of the gear ring.

8. The lamp according to claim 1, characterized in that, The lamp holder includes a first tube shell and a first end cap that encloses both ends thereof, and the lamp body includes a second tube shell and a second end cap that encloses both ends thereof; one of the first end cap and the second end cap is provided with the pivot shaft, and the other is provided with the shaft connection hole, and the lamp body is rotatably mounted between the two first end caps.

9. The lamp according to claim 8, characterized in that, The first end cover has a wire hole through which the power supply wire passes through the lamp holder.

10. The lamp according to claim 8, characterized in that, It also includes a decorative cover for covering the outside of the first end cap.

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