Lamp kit and lamp

Abstract

The utility model relates to a lamp kit and a lamp. The luminaire kit includes a luminaire body, a light emitting device mechanically supported by the luminaire body and configured to emit light from a front side of the luminaire body, a cover element, a frame element separable from the cover element, one or more coupling elements, and a fastening element for each coupling element. The cover element is configured to cover the light emitting device such that at least a portion of the light emitted by the light emitting device is output at a light output side of the cover element. The one or more coupling elements are each configured to mechanically couple the frame element to the luminaire body when fixed to the rear side of the luminaire body by a respective fastening element such that the frame element is pulled toward the luminaire body and mechanically engages the periphery of the light output side of the cover element.

Description

TECHNICAL FIELD

[0001] The present utility model relates to the field of artificial lighting, in particular, to a lamp. BACKGROUND

[0002] Artificial lighting is increasingly used in society. Lamps are capable of emitting light for use in illuminating environments, such as domestic, industrial, commercial and / or civil environments.

[0003] A typical lamp will comprise one or more light emitting elements, such as individual LEDs, LED chips or other light emitting components. For improved protection, for example against dust, dirt or water, the lamp typically has one or more cover elements for covering the light emitting element(s). The cover element(s) can be formed separately from the light emitting elements.

[0004] In some approaches, each cover element can be attached to the remainder of the lamp, and can be (optionally) detachable from the remainder of the lamp. This makes manufacturing easy, and if detachable, maintenance, repair or replacement of the light emitting element(s) easy. A respective gasket (e.g. O-ring) can be positioned between each cover element and the remainder of the lamp to reduce ingress of foreign matter (e.g. dust or water).

[0005] There is a continuing desire to improve the reliability of attachment of the cover element to the remainder of the lamp. SUMMARY

[0006] It is an object of embodiments of the present disclosure to overcome all or some of the disadvantages of known attachment of the cover element to the remainder of the lamp.

[0007] According to an example in accordance with an aspect of the present utility model, there is provided a lamp kit comprising: a lamp body; a light emitting arrangement mechanically supported by the lamp body, configured to emit light from a front side of the lamp body; a cover element configured to cover the light emitting arrangement, and when covering the light emitting arrangement, to receive light emitted by the light emitting arrangement at a light receiving side, and to output at least some of the received light at a light output side; a frame element separable from the cover element, configured to mechanically engage with a periphery of the light output side of the cover element; one or more coupling elements configured to mechanically couple the frame element to a rear side of the lamp body, wherein each coupling element is configured to pull the frame element towards the lamp body when mechanically coupling the frame element to the lamp body; and for each coupling element, a fastening element for securing the respective coupling element to the rear side of the lamp body.

[0008] The use of a frame element that engages with the periphery of the light output side of the cover element and is pulled toward the luminaire body via one or more coupling elements provides a more robust and reliable attachment of the cover element to the luminaire body for enhanced vibration resistance. This arrangement has been proven to withstand high vibrations in all directions without deforming the frame element or reducing any functionality of the cover element (such as optical functions and waterproofing).

[0009] In addition, this arrangement provides a low-cost, compact and easy-to-assemble structure.

[0010] Since each coupling element is fixed to the rear side of the luminaire body, this arrangement provides an improved attachment of the cover element to the luminaire body without the need for any screws or other fastening elements on the front (light output) side of the luminaire.

[0011] The frame element can be used in conjunction with other connecting elements to attach the cover element to the luminaire body (e.g., a clip can be provided on the cover element to clamp onto the luminaire body) to reduce the risk of the cover element separating from the luminaire body in the event of failure of other connecting elements (e.g., plastic clips typically used to attach the cover element to the luminaire body are likely to break when exposed to outdoor conditions, especially when used in high-vibration environments).

[0012] In some examples, each fastening element includes a screw for securing the corresponding coupling element to the rear of the luminaire.

[0013] The screws provide a particularly strong fastening, improving the vibration resistance of the assembled luminaire. In some examples, each screw may be equipped with an anti-rotation washer for further enhancement of vibration resistance.

[0014] In some examples, each coupling element includes a cantilever that is configured to pull the frame element toward the luminaire body when the frame element is mechanically coupled to the luminaire body and secured to the rear of the luminaire by a corresponding fastening element.

[0015] The cantilever mechanism provides a reliable pulling force toward the luminaire body to the frame element, strong enough to secure the frame element to the luminaire body, but not so strong as to provide excessive force that could damage the cover element.

[0016] In some examples, the frame element is configured to extend beyond the rear side of the luminaire body when mechanically coupled to the luminaire body via one or more coupling elements.

[0017] In some examples, the frame element includes a corresponding hole for each coupling element; and each coupling element is configured to pull the frame element toward the luminaire body using the corresponding hole of the frame element when the frame element is mechanically coupled to the luminaire body.

[0018] In some examples, each coupling element is configured to extend through a corresponding hole in the frame element when the frame element is mechanically coupled to the luminaire body.

[0019] This can provide a more robust coupling between the frame components and the luminaire body.

[0020] In some examples, each coupling element includes a hook body configured to hook onto the frame element at a corresponding hole in the frame element.

[0021] This can further improve the robustness of the mechanical coupling between the frame components and the lamp body.

[0022] In some examples, the frame element includes a corresponding protrusion for each hole, with the hole formed in the corresponding protrusion; and when the frame element is mechanically coupled to the luminaire body by one or more coupling elements, each protrusion of the frame element extends from the periphery of the light output side of the cover element toward the rear side of the luminaire body.

[0023] In some examples, the frame elements are made of stainless steel. This provides improved rigidity to the frame elements, thereby enhancing the secure attachment of the cover elements to the luminaire body. The use of stainless steel offers the added advantage of being suitable for outdoor environments, increasing the lifespan of the luminaire assembled from the luminaire kit.

[0024] In some examples, one or more coupling elements include no fewer than six coupling elements.

[0025] This provides a stronger and more reliable mechanical coupling between the frame elements and the luminaire body. In some examples, the coupling elements can be fixed to the luminaire body in a symmetrical arrangement, thereby improving the uniformity of the forces applied to the frame elements. This reduces the likelihood that pulling the frame elements toward the luminaire body will cause deformation of the frame elements and / or damage to the cover elements.

[0026] In some examples, the cover element includes a lens plate for performing beam shaping on the light emitted by the light-emitting device.

[0027] In other words, in addition to protecting the light-emitting device, the cover element can also be configured to control the light output by the assembled luminaire.

[0028] In some examples, the light-emitting device includes an LED array.

[0029] In some examples, each coupling element is formed from a single sheet of stainless steel. Stainless steel provides sufficient rigidity for the coupling element to pull the frame element to the luminaire body. Furthermore, stainless steel is suitable for harsh environments. For example, in outdoor luminaires, the use of stainless steel for one or more coupling elements may be particularly advantageous.

[0030] In some examples, the body of the frame element defines an opening that allows light emitted from the light output side of the cover element to pass through; and the difference between the width of the frame element and the width of the opening is between 5 mm and 20 mm.

[0031] This reduces the area of ​​the light output side of the cover element covered by the frame element, so that most of the light output at the light output side of the cover element can be output by the luminaire assembled from the luminaire kit.

[0032] Lighting fixtures assembled from any of the above lighting kits are also provided.

[0033] These and other aspects of this invention will be apparent from the embodiments described below and will be elucidated with reference to the embodiments described below. Attached Figure Description

[0034] To better understand this invention and to more clearly illustrate how it can be implemented, reference will now be made to the accompanying drawings by way of example only, in which:

[0035] Figure 1 A front view of a lamp according to an embodiment of the present invention is shown;

[0036] Figure 2 A perspective view of the cover element of the luminaire is shown;

[0037] Figure 3 A perspective view of the frame components of the luminaire is shown;

[0038] Figure 4 The coupling element of the luminaire is shown;

[0039] Figure 5 A cross-sectional view of the assembled lamp is shown;

[0040] Figure 6 A cross-sectional view of the luminaire in a partially assembled state is shown; and

[0041] Figure 7 This is a rear view of the light fixture. Detailed Implementation

[0042] The present invention will be described with reference to the accompanying drawings.

[0043] It should be understood that while the detailed description and specific examples indicate exemplary embodiments of the apparatus, system, and method, these descriptions and specific examples are for illustrative purposes only and are not intended to limit the scope of the present invention. These and other features, aspects, and advantages of the apparatus, system, and method of the present invention will be better understood from the following description, the appended claims, and the accompanying drawings. It should be understood that these drawings are merely schematic and not drawn to scale. It should also be understood that the same reference numerals are used throughout the drawings to denote the same or similar components.

[0044] This invention provides a lighting fixture kit, comprising a lighting fixture body, a light-emitting device mechanically supported by the lighting fixture body and configured to emit light from the front side of the lighting fixture body, a cover element, a frame element separable from the cover element, one or more coupling elements, and fastening elements for each coupling element. The cover element is configured to cover the light-emitting device such that at least a portion of the light emitted by the light-emitting device is output on the light output side of the cover element. Each of the one or more coupling elements is configured to mechanically couple the frame element to the lighting fixture body when secured to the rear side of the lighting fixture body by a corresponding fastening element, such that the frame element is pulled toward the lighting fixture body and mechanically engages with the periphery of the light output side of the cover element.

[0045] The embodiments are based at least in part on the following implementation: by using a separate frame element, the cover element can be more securely attached to the lamp body, the separate frame element being fastened to the rear of the lamp body and configured to pull the cover element toward the lamp body.

[0046] The illustrative embodiments can be used, for example, in lighting systems, such as outdoor lighting systems, including streetlights, floodlights, wall washers, etc. The luminaire kits are particularly advantageous for use in high-vibration environments, such as ports, airports, bridges, heavy industrial plants, etc.

[0047] Figure 1 A front view of a lamp 10 according to an embodiment of the present invention is shown. The lamp is assembled from a lamp kit, which itself is an embodiment of the present invention. The lamp 10 includes a lamp body 110 and a light-emitting device ( Figure 1 (not visible in the middle), at least one cover element 130, frame element 140, one or more coupling elements, and one or more fastening elements.

[0048] Each cover element 130 is configured to cover the light-emitting device, and when covering the light-emitting device, receives light emitted by the light-emitting device at the light-receiving side, and outputs at least some of the received light at the light-output side. Figure 1 In the assembled lamp 10 shown, the light-emitting device is covered by a cover element.

[0049] exist Figure 1The example provides two cover elements, each covering a different part of the light-emitting device. However, any number of cover elements can be used, and the number of cover elements can depend on the size of the light-emitting device. In some examples, a single cover element can cover the entire light-emitting device.

[0050] The light-emitting device is mechanically supported by the luminaire body 110 and is configured to emit light from the front side of the luminaire body. The light-emitting device may include, for example, one or more light-emitting elements disposed on the front side (i.e., the light-emitting side) of the luminaire body. In some examples, the light-emitting device may include an LED array.

[0051] Those skilled in the art will readily understand that luminaire 10 may also include other common components of luminaires. For example, the luminaire may also include a heat sink, a power supply / drive circuit system, a control circuit system, a communication circuit system, etc. In some examples, a sealing element, such as an O-ring, may be provided between each cover element and the luminaire body.

[0052] Figure 2 A perspective view of the cover element 130 of the luminaire 10 is shown. As previously described, the cover element 130 is configured to receive light emitted by the light-emitting device at a light-receiving side when covering the light-emitting device of the luminaire, and to output at least some of the received light at a light-output side. For example, at least a portion of the cover element may be formed of a light-transmitting material. In some examples, the cover element is formed of light-transmitting polycarbonate.

[0053] In some examples, the cover element 130 can be configured to control the light output at the light output side. For example, the cover element may include a lens plate for performing beam shaping on the light emitted by the light-emitting device. Figure 2 In the case of the cover element 120, there are multiple lens elements 131, each of which is configured to align with a corresponding light-emitting element of the first luminaire portion 110 when the cover element 120 is attached to the first luminaire portion 110. Figure 2 The lens element of the cover element shown is a convex structure; however, those skilled in the art will understand that the structure of the lens plate may depend on the desired shape and / or direction of the light output from the cover element.

[0054] exist Figure 2 In this embodiment, the cover element 130 also includes a plurality of engaging elements 132 for attaching the cover element to the lamp body 110. Figure 2 In this configuration, each engagement element 132 is a clip with a hole for engaging with a protrusion provided on the lamp body; however, any suitable engagement element may be used.

[0055] The cover element 130 (including multiple engaging elements, if present) can be integrally formed. For example, the entire cover element can be formed by injection molding.

[0056] Figure 3 A perspective view of the frame element 140 of the luminaire 10 is shown. The frame element is separable from the cover element 130 and is configured to mechanically engage with the periphery of the light output side of the cover element. The frame element includes a body 141 defining an opening 142 for allowing light output at the light output side of the cover element 130 to pass through. The length and width of the opening may be smaller than the length and width of the cover element, respectively, such that the cover element cannot pass through the opening.

[0057] The frame element 140 includes one or more protrusions 147 extending from the body 141 of the frame element. Holes 145 are formed in each protrusion to allow the frame element to be mechanically coupled to the luminaire body 110, as described in more detail below.

[0058] In some examples, frame element 140 may include at least six protrusions 147 to enable the frame element to be securely mechanically coupled to the luminaire body 110. For example, Figure 3 The frame element 140 shown has twelve protrusions. These protrusions are symmetrically arranged around the frame element to provide uniform force on it when mechanically coupled to the luminaire body. This reduces the likelihood of deformation of the frame element and / or damage to the cover element.

[0059] In some examples, the frame element 140 may be formed of metal. For example, the frame element may be formed of stainless steel (e.g., SUS304). The frame element may be formed integrally; for example, the frame element may be formed using a sheet metal deep drawing process. The body 141 of the frame element may have a thickness between 0.5 mm and 2 mm (i.e., the thickness of the sheet metal forming the frame element) (e.g., approximately 1 mm thick). The width W of the frame element... 140 Width W of opening 142 142 The difference between the length of the frame element and the length of the opening is twice the width of the edge of the body 141, and can be between 5 mm and 20 mm. In other words, the edge of the body of the frame element can have a width between 2.5 mm and 10 mm.

[0060] As previously described, the luminaire 10 includes one or more coupling elements. The one or more coupling elements are configured to mechanically couple the frame element 140 to the rear side of the luminaire body 110. In some examples, a coupling element may be provided for each protrusion 147 of the frame element.

[0061] Figure 4 The coupling element 150 of the luminaire 10 is shown. The coupling element is configured to pull the frame element toward the luminaire body 110 when the frame element 140 is mechanically coupled to the luminaire body 110, as described in more detail below.

[0062] Figure 4 The coupling element 150 shown includes a hook 155 configured to hook onto the frame element 140 using a hole 145 in the frame element. The hook 155 is disposed on a first arm 151 of the coupling element, which is configured to act as a cantilever when the frame element is mechanically coupled to the luminaire body, as described below.

[0063] As previously described, the luminaire 10 includes one or more fastening elements. Each fastening element is configured to secure a corresponding coupling element to the rear side of the luminaire body. In some examples, the coupling element 150 may be configured to engage with the corresponding fastening element. For example, in Figure 4 In the process, the coupling element 150 includes a through hole 151 for receiving a screw.

[0064] In some examples, the coupling element 150 may also include a handle 153 for facilitating mechanical coupling of the frame element 140 to the luminaire body 110.

[0065] The coupling element 150 can be formed of metal; for example, it can be formed of stainless steel. In some examples, the coupling element can be formed integrally. The coupling element can have sufficient elasticity to allow the first arm 151 to bend slightly. For example, the coupling element can be formed of a metal with a Young's modulus between 150 GPa and 250 GPa (such as between 190 GPa and 210 GPa, for example, approximately 200 GPa). The shape of the coupling element can also affect its elasticity; for example, Figure 4 The shape of the first arm 151 shown (especially the arrangement of the hook 155) allows the first arm to be slightly bent.

[0066] Figure 5 A cross-sectional view of the assembled lamp 10 is shown. Figure 5 The mechanical coupling between the frame element 140 and the rear side 112 of the lamp body 110 (i.e., the side of the lamp body opposite to the front side 111 on which the light-emitting device 120 is mounted) is shown.

[0067] The cover element 130 is disposed on the light-emitting side of the light-emitting device 120. Figure 5 In this configuration, the cover element is attached to the luminaire body 110 by engaging each clip 132 with a corresponding protrusion on the luminaire body 110; however, as those skilled in the art will understand, any suitable engagement device can be used to attach the cover element to the luminaire body. Alternatively, the cover element may not include an engagement device and may be secured to the luminaire body simply by mechanically coupling the frame element 140 to the luminaire body.

[0068] The frame element 140 is mounted on the cover element 130 such that the outer portion of the cover element is located between the body of the frame element and the lamp body 110. Each protrusion 147 of the frame element 140 extends from the periphery of the light output side of the cover element toward the rear side of the lamp body, extending beyond the mounting surface of one or more fastening elements disposed on the rear side 112 of the lamp body.

[0069] Each coupling element 150 is secured to the rear side 112 of the lamp body 110 by a corresponding fastening element 160. Figure 5 In this system, each fastening element includes a screw, the body of which passes through a through-hole in the coupling element and is secured within a threaded hole on the rear side of the luminaire body, thereby securing the coupling element to the luminaire body. In some examples, particularly in luminaires designed for high-vibration environments, each screw may have its threads coated (e.g., with glue) or engaged with an anti-rotation washer to reduce the likelihood of loosening due to vibration. In one embodiment, the screw is a self-tapping screw.

[0070] As previously described, a hole 145 is formed in each protrusion 147 of the frame element 140. To provide mechanical coupling between the frame element and the luminaire body 110, a first arm 151 of each coupling element 150 extends through a corresponding hole in the frame element. The hook 155 of each coupling element engages with the protrusion in which the corresponding hole is formed, such that the frame element is pulled toward the luminaire body. This, in turn, secures the cover element 130 to the luminaire body, as the body of the frame element is pressed against the periphery of the light output side of the cover element, thereby pressing the cover element toward the luminaire body.

[0071] In other words, when each coupling element 150 is secured to the rear side 112 of the luminaire by fastening element 160, the first arm 151 acts as a cantilever, mechanically coupling the frame element 140 to the luminaire body 110 by pulling the frame element toward the luminaire body using the cantilever mechanism.

[0072] Figure 6 A cross-sectional view of the luminaire 10 in a partially assembled state is shown, wherein the coupling element 150 has not yet been fixed to the rear side 112 of the luminaire body.

[0073] The light-emitting device 120 is disposed on the front side 111 of the lamp body 110, and the cover element 130 is disposed on the light-emitting side of the light-emitting device. The frame element 140 is mounted on the cover element, the body of the frame element contacts the periphery of the light output side of the cover element, and the protrusion 147 extends toward the rear side of the lamp body.

[0074] To mechanically couple the frame element 140 to the rear of the luminaire body, the hook 155 of each coupling element 150 is inserted through a hole 145 in the corresponding protrusion 147 of the frame element. Then, each coupling element is positioned against the rear of the luminaire body, the hook engaging with the corresponding protrusion, such that the coupling element acts as a lever, pulling the frame element toward the luminaire body. Then, a corresponding fastening element ( Figure 6 (Not shown in the image) to secure each coupling element to the rear of the luminaire body; in this way, the coupling elements continue to pull the frame elements toward the luminaire body.

[0075] Figure 7 A rear view of the luminaire 10 is shown, illustrating the mechanical coupling of the frame element 140 to the luminaire body 110. As previously described, the hook 155 of each coupling element 150 is inserted into and engages with a hole 145 through a corresponding protrusion 147 of the frame element, such that when the coupling element is secured to the rear side 112 of the luminaire body by the fastening element 160, the frame element is pulled toward the luminaire body.

[0076] exist Figure 7 In this configuration, the coupling element is fixed to the rear side 112 of the lamp body between adjacent fins 115 of the lamp's heat sink.

[0077] Alternative structures for the frame element and / or one or more coupling elements are also envisioned. For example, each coupling element may engage with the periphery of the corresponding protrusion (e.g., with the edge of the crossbar of the T-shaped protrusion) instead of using a hole in the corresponding protrusion of the frame element. The hook 155 of the coupling element shown in the above example is an open hook; alternatively, a closed hook may be fitted onto the corresponding protrusion of the frame element.

[0078] When practicing the claimed utility model, those skilled in the art can understand and implement various modifications to the disclosed embodiments by studying the accompanying drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite articles "a" or "an" do not exclude a plurality.

[0079] The fact that certain measures are described in mutually different dependent claims does not mean that a combination of these measures cannot be used advantageously.

[0080] If the term “suitable” is used in the claims or description, it should be noted that the term “suitable” is intended to be equivalent to the term “configured as.” If the term “arrangement” is used in the claims or description, it should be noted that the term “arrangement” is intended to be equivalent to the term “system,” and vice versa.

[0081] Any reference symbols in the claims should not be construed as limiting the scope.

Claims

1. A kit of light fixtures, characterized in that, The luminaire kit comprises: a luminaire body (110); a light emitting device (120) mechanically supported by the luminaire body, configured to emit light from a front side (111) of the luminaire body; a cover element (130) configured to cover the light emitting device, and when covering the light emitting device, to receive light emitted by the light emitting device at a light receiving side, and to output at least some of the received light at a light output side; a frame element (140) separable from the cover element, configured to mechanically engage with a periphery of the light output side of the cover element; one or more coupling elements (150) configured to mechanically couple the frame element to a back side (112) of the luminaire body, wherein each coupling element is configured to pull the frame element towards the luminaire body when mechanically coupling the frame element to the luminaire body; and a fastening element (160) for each coupling element for fixing the respective coupling element to the back side of the luminaire body.

2. The luminaire kit of claim 1, wherein, Each fastening element comprises a screw for fixing the respective coupling element to the back side of the luminaire.

3. The luminaire kit of claim 1 or 2, wherein, Each coupling element comprises a cantilever configured to use a cantilever mechanism to pull the frame element towards the luminaire body when mechanically coupling the frame element to the luminaire body and fixed to the back side of the luminaire by the respective fastening element.

4. The luminaire kit of claim 1 or 2, wherein, The frame element is configured to extend beyond the back side of the luminaire body when mechanically coupled to the luminaire body by the one or more coupling elements.

5. The luminaire kit of claim 1, wherein: the frame element (140) comprises a respective hole (145) for each coupling element; and each coupling element is configured to use the respective hole of the frame element to pull the frame element towards the luminaire body when mechanically coupling the frame element to the luminaire body.

6. The luminaire kit of claim 5, wherein, Each coupling element is configured to extend through the respective hole of the frame element when mechanically coupling the frame element to the luminaire body.

7. The luminaire kit of claim 6, wherein, Each coupling element (150) comprises a hook body (155) configured to hook the frame element at the respective hole of the frame element.

8. The luminaire kit of any one of claims 5 to 7, wherein: the frame element comprises a respective protrusion (147) for each hole, the hole being formed in the respective protrusion; and each protrusion of the frame element extends from a periphery of the light output side of the cover element towards the back side of the luminaire body when the frame element is mechanically coupled to the luminaire body by the one or more coupling elements.

9. The kit of light fixture of claim 1 or 2, wherein, The frame element is formed of stainless steel.

10. The luminaire kit of claim 1 or 2, wherein: a body of the frame element defines an opening for allowing light outputted at the light output side of the cover element to pass through; and a difference between a width of the frame element and a width of the opening is between 5 mm and 20 mm.

11. The kit of light fixtures of claim 1 or 2, wherein, The one or more coupling elements comprise no less than six coupling elements.

12. The kit of light fixtures of claim 1 or 2, wherein, The cover element comprises a lens plate for performing beam shaping of light emitted by the light emitting device.

13. The luminaire kit of claim 1 or 2, wherein, The light emitting device comprises an array of LEDs.

14. The luminaire kit of claim 1 or 2, wherein, Each coupling element is formed from a sheet of stainless steel.

15. A luminaire (10) characterized by The luminaire is assembled from a luminaire kit according to any one of claims 1 to 14.

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