CN219264212U - Tube lamp - Google Patents

Abstract

The down lamp in the embodiment of the disclosure comprises: the bearing piece is provided with a first surface and a second surface along the axial direction, and at least one group of first heat dissipation convex edges are arranged on the first annular side surface; the first surface is provided with at least one first vent hole; a light source setting area provided with a light emitting unit is formed in the middle of the bearing piece; one surface of the radiator facing the bearing piece is axially connected with the bearing piece, and a second annular side surface connected with the first annular side surface is provided with a second radiating convex edge correspondingly connected with each first radiating convex edge in the axial direction; the radiator is provided with a second vent hole communicated with each first vent hole and a third vent hole arranged on the second annular side surface and communicated with the second vent hole air passage; the lens is arranged in the light hole of the radiator and covers the light source setting area; the lamp housing assembly incorporates a lens and is secured to a heat sink to form a light transmission cavity. The heat dissipation area is increased through each first heat dissipation convex edge and each second heat dissipation convex edge, and the heat dissipation air passage formed between the vent holes is matched, so that the heat dissipation performance of the down lamp is improved.

Description

Tube lamp

Technical Field

The disclosure relates to the technical field of lamps, in particular to a down lamp.

Background

Down lamps are common lamps in living scenes and can provide an aesthetic sense of light and shadow atmosphere in addition to being used for illumination.

However, with the higher and higher integration of the light source and the driving circuit, the requirements for the heat dissipation performance of the down lamp are also increasing. Therefore, how to find a solution that improves the performance of the down lamp without increasing the volume and cost of the down lamp is a technical problem to be solved in the industry.

Disclosure of Invention

In view of the above-described drawbacks of the related art, an object of the present disclosure is to provide a down lamp that solves the problems in the related art.

A first aspect of the present disclosure provides a down lamp comprising: the bearing piece is arranged around an axial direction, provided with a first surface and a second surface which are opposite along the axial direction, and provided with at least one group of first heat dissipation convex edges on a first annular side surface connecting the first surface and the second surface; wherein each first heat dissipation ridge extends from the first annular side surface to the first surface; the first surface is provided with at least one first vent hole; a light source setting area provided with a light emitting unit is formed in the middle of the bearing piece; a heat sink having a second annular side surface connected to the first annular side surface, the heat sink being fixedly connected to the second surface of the carrier along the axial direction on a surface facing the carrier; the second annular side surface is provided with a second heat dissipation convex edge which is correspondingly connected with each first heat dissipation convex edge in the axial direction; the radiator is provided with a second vent hole which corresponds to and is communicated with each first vent hole position and a third vent hole which is arranged on the second annular side surface and is communicated with the second vent hole air passage; the radiator is also provided with a light hole with a position corresponding to the light-emitting unit; the lens is arranged in the light hole and covers the light source setting area; and the lampshade assembly is combined with the lens and fixed to the radiator to form a light transmission cavity between the lens and the lampshade assembly.

In an embodiment of the first aspect, a first vent hole is arranged between every two adjacent first heat dissipation ribs in each group of first heat dissipation ribs; and/or, a positioning groove is arranged at the first annular side surface part between two adjacent groups of first heat dissipation convex edges, and a third heat dissipation convex edge combined to each positioning groove is further arranged at the second annular side surface; and/or the bearing piece and the radiator are bonded through a heat conduction fluid medium.

In an embodiment of the first aspect, the radiator is provided with a plurality of first mounting holes along the axial direction, the bearing member is provided with a second mounting hole corresponding to each first mounting hole, and the first mounting hole and the second mounting hole are used for penetrating the first screw locking member to fix the radiator and the bearing member.

In an embodiment of the first aspect, the down lamp further comprises: cover plates embedded into the interval area between every two adjacent groups of first heat dissipation convex edges; the first mounting holes are through holes penetrating through the radiator along the axial direction, and each first screw locking piece penetrates through the first mounting holes and the second mounting holes from one end of the through holes, which is away from the bearing piece, and is fixed on a first screw hole of a covering plate in a screw locking mode.

In an embodiment of the first aspect, at least one of the carrier, the heat sink, and the cover plate of the carrier is made of ceramic material.

In an embodiment of the first aspect, the canopy assembly comprises: an adapter for securing to the heat sink; the adapter comprises a hollow cylinder, and one end of the hollow cylinder, facing the radiator, fixedly receives the lens; one end of the hollow cylinder body, which is opposite to the radiator, protrudes out of the adapter; a mask fixedly connected to the adapter and provided with a through hole sleeved with one end of the hollow cylinder body, which is opposite to the radiator; the face frame is fixed at one end of the face mask, which is opposite to the adapter, and is provided with a light emitting surface corresponding to the through hole; wherein the through hole, the hollow cylinder body and the light emergent surface form the light transmission cavity; at least one pair of elastic clamping pieces are outwards protruded from the side face of the face frame.

In an embodiment of the first aspect, the adapter further comprises a rim disposed at least partially around the hollow barrel sidewall, the rim being secured to the heat sink; the rim is also provided with at least one fourth air hole which is connected with at least one air passage.

In an embodiment of the first aspect, the rim is provided with at least one pair of third mounting holes, which are respectively located at two opposite sides of the hollow cylinder; the radiator is provided with a second screw hole corresponding to each third mounting hole for screwing with a second screw locking piece penetrating through the third mounting holes; and/or, the mask forms a gap exposing at least one fourth vent hole along the axial side wall surface.

In an embodiment of the first aspect, the mask is fixedly sleeved outside the rim of the adapter, and is fixedly connected with the rim.

In an embodiment of the first aspect, the rim is provided with at least one pair of ears extending towards the mask, each ear being provided with a third screw hole; the wall surface of the face mask is provided with a fourth mounting hole corresponding to each third screw hole, so that a third screw locking piece screwed with the third screw holes is penetrated.

As described above, in an embodiment of the present disclosure, there is provided a down lamp including: the bearing piece is arranged around an axial direction, provided with a first surface and a second surface which are opposite along the axial direction, and provided with at least one group of first heat dissipation convex edges on a first annular side surface connecting the first surface and the second surface; wherein each first heat dissipation ridge extends from the first annular side surface to the first surface; the first surface is provided with at least one first vent hole; a light source setting area provided with a light emitting unit is formed in the middle of the bearing piece; a heat sink having a second annular side surface connected to the first annular side surface, the heat sink being fixedly connected to the second surface of the carrier along the axial direction on a surface facing the carrier; the second annular side surface is provided with a second heat dissipation convex edge which is correspondingly connected with each first heat dissipation convex edge in the axial direction; the radiator is provided with a second vent hole which corresponds to and is communicated with each first vent hole position and a third vent hole which is arranged on the second annular side surface and is communicated with the second vent hole air passage; the radiator is also provided with a light hole with a position corresponding to the light-emitting unit; the lens is arranged in the light hole and covers the light source setting area; and the lampshade assembly is combined with the lens and fixed to the radiator to form a light transmission cavity between the lens and the lampshade assembly. The heat dissipation area is increased through each first heat dissipation convex edge and each second heat dissipation convex edge, and the heat dissipation air passage formed between the vent holes is matched, so that the heat dissipation performance of the down lamp is effectively improved.

Drawings

Fig. 1 shows a schematic structural diagram of a down lamp in an embodiment of the present disclosure.

Fig. 2 shows a schematic exploded view of the down lamp of fig. 1.

Fig. 3 shows a schematic view of the structure of the other side of the carrier in fig. 2.

Fig. 4 shows a schematic structural view of the carrier and heat sink of fig. 2 after installation and docking.

Fig. 5A shows a schematic structural view of the assembly of fig. 4 after the carrier and the heat sink are fixed to each other.

Fig. 5B shows a schematic structural diagram of another side of the assembly of fig. 5A.

Fig. 6 shows a schematic structural diagram of the assembly of the carrier, the heat sink, the lens and the adapter of fig. 2 after being fixed to each other.

Fig. 7 shows a schematic structural view of the assembly of fig. 6 secured to a mask.

Fig. 8 shows a schematic structural view of the mask of fig. 7 after the mask is secured to the mask.

Fig. 9A shows a schematic structural diagram of a down lamp installation scenario in an embodiment of the present disclosure.

Fig. 9B shows a schematic diagram of the completed installation of the down lamp of fig. 9A.

Detailed Description

Other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the following detailed description of the embodiments of the disclosure given by way of specific examples. The disclosure may be embodied or applied in other specific forms and details, and various modifications and alterations may be made to the details of the disclosure in various respects, all without departing from the spirit of the disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

The embodiments of the present disclosure will be described in detail below with reference to the attached drawings so that those skilled in the art to which the present disclosure pertains can easily implement the same. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

In the description of the present disclosure, references to the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, various embodiments or examples, as well as features of various embodiments or examples, presented in this disclosure may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the representations of the present disclosure, "a set" means two or more, unless specifically defined otherwise.

For the purpose of clarity of the present disclosure, components that are not related to the description are omitted, and the same or similar components are given the same reference numerals throughout the specification.

Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" with other elements interposed therebetween. In addition, when a certain component is said to be "included" in a certain device, unless otherwise stated, other components are not excluded, but it means that other components may be included.

Although the terms first, second, etc. may be used herein to connote various elements in some examples, the elements should not be limited by the terms. These terms are only used to distinguish one element from another element. For example, a first interface, a second interface, etc. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, modules, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, modules, items, categories, and/or groups. The terms "or" and/or "as used herein are to be construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; A. b and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the language clearly indicates the contrary. The meaning of "comprising" in the specification is to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not preclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.

Although not differently defined, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The term append defined in commonly used dictionaries is interpreted as having a meaning that is consistent with the meaning of the relevant technical literature and the currently prompted message, and is not excessively interpreted as an ideal or very formulaic meaning, so long as no definition is made.

In view of the breakthrough in heat dissipation performance of the existing down lamp, the service life of the down lamp can be prolonged due to the increasing heat generation amount of the elements, and the embodiment of the disclosure provides a down lamp with improved heat dissipation performance.

As shown in fig. 1, a schematic structural diagram of a down lamp 100 in an embodiment of the present disclosure is shown.

The downlight 100 includes a carrier 101, a heat sink 102, and a canopy assembly 103. In fig. 1, the carrier 101, the heat sink 102 and the lamp shade assembly 103 are disposed from top to bottom, and light is emitted from the lower end of the lamp shade assembly 103.

As further shown in fig. 2, an exploded view of the down lamp 100 of fig. 1 is shown.

As shown in fig. 2, the specific structure of the carrier 101, the heat sink 102, and the canopy assembly 103 is exemplarily presented. Illustratively, the canopy assembly 103 includes an adapter 131, a mask 132, and a bezel 133. Illustratively, at least one pair of elastic clips 1331 may protrude outwards from the side surface of the face frame 133. Illustratively, the downlight 100 further includes at least one cover sheet 104 for securing to the carrier 101 to conceal a fixture (e.g., a screw). The respective components are described one by one below.

The down lamp 100 may have a central axis, such as shown at Z in FIG. 2, that may be threaded through each of the above-described components. The direction of the central axis is defined as "axial".

The carrier 101 is arranged around an axial direction and has a first surface and a second surface facing away from each other in the axial direction, and at least one set of first heat dissipating ribs 111 is arranged on a first annular side surface connecting the first surface and the second surface. The axial direction may be the direction of the central axis Z, the first surface is the upper surface of the carrier 101 in fig. 2, the second surface is the lower surface of the carrier 101 in fig. 2, and the first annular side surface is the side surface connecting the upper and lower surfaces. The carrier 101 may be in the shape of a disc, the first and second surfaces may be circular surfaces, and the first annular side surface may be a cylindrical side surface. Illustratively, as shown in fig. 1 and 2, each first heat dissipating rib 111 extends from the first annular side surface to the first surface, i.e., the first heat dissipating rib 111 is, for example, in the drawings, in the form of a folded-over structure bent in a transverse L-shape. Illustratively, the first heat dissipating ribs 111 may be provided with a plurality of groups, such as three groups of first heat dissipating ribs 111 in fig. 1 and 2, which are uniformly spaced apart from each other on the first surface. Each group is provided with, for example, 5 first heat dissipating ribs 111, which are also spaced apart from each other.

The first surface is provided with at least one first vent 112, and the first vent 112 can penetrate the carrier 101 to communicate the outside with the heat sink 102. Illustratively, a first vent 112 is disposed between each adjacent two of the first heat dissipating ribs 111 in each set of first heat dissipating ribs 111. That is, if each group of 5 first heat dissipating ribs 111, 4 first ventilation holes 112 are provided therebetween. The shape of the first ventilation holes 112 may be set according to the size and shape of the interval region between the adjacent first heat dissipation ribs 111, for example, the first ventilation holes 112 may be trapezoidal, straight-bar, triangular, square, or circular. It should be noted that, in other embodiments, the number and positions of the first ventilation holes 112 may be changed according to the structural requirement, for example, only one first ventilation hole 112 is provided in each set of the first heat dissipation ribs 111, and the first ventilation holes 112 are provided in the light source setting area or the interval area between two sets of the first heat dissipation ribs 111, which is not limited in the illustration.

Referring also to fig. 3, a schematic structural view of the other side of the carrier 101 in fig. 2 is shown. As can be seen from fig. 3, the middle part of the carrier 101 forms a light source arrangement area provided with light emitting units 105. The light source setting region may be provided for setting the light emitting unit 105, and the light emitting unit 105 may include, for example, LED beads or the like. The light source arrangement region may also be provided with pads 106 for connection wires. For example, a wiring or the like electrically connecting the light emitting unit 105 to the driving circuit.

Returning to the structure of the heat sink 102 shown in fig. 2. The surface of the heat sink 102 facing the carrier 101 is fixedly connected to the second surface of the carrier 101 along the axial direction, and has a second annular side surface connected to the first annular side surface. Referring to fig. 2 and 4 together, fig. 4 shows the assembly structure of the carrier 101 assembled to the heat sink 102. The second annular side surface is provided with a second heat dissipation convex edge 121 correspondingly connected with each first heat dissipation convex edge 111 in position in the axial direction. Specifically, the heat spreader 102 may be cylindrical, which is matched with the disc-shaped diameter of the carrier 101, and the layout structure and the size between the second heat dissipation ribs 121 are the same as the layout structure and the size of the first heat dissipation ribs 111, so that the carrier 101 may be connected to one end of the heat spreader 102 in a shape-matching manner, and each first heat dissipation rib 111 is connected to the second heat dissipation rib 121. The width of each second heat dissipating rib 121 may be identical to that of the first heat dissipating rib 111, so that the end of the second heat dissipating rib 121 facing the carrier 101 is connected with the surface of the first heat dissipating rib 111 between the ends of the first annular side surfaces in a flat manner.

To facilitate positioning between the carrier 101 and the heat sink 102, in some embodiments, for example as shown in fig. 2 and 4, a first annular side portion between two adjacent sets of first heat dissipating ribs 111 may be provided with positioning grooves 113, and the second annular side may be further provided with third heat dissipating ribs 122 coupled to each positioning groove 113. The length of the third heat dissipating ridge 122 in the axial direction is greater than that of the second heat dissipating ridge 121, for example, the length of the second heat dissipating ridge 121 is protruding from the surface of the heat sink 102 facing the carrier 101 (may be kept flush), and the third heat dissipating ridge 122 may protrude from the surface and protrude from one end of the positioning slot 113, so as to limit the relative rotation between the carrier 101 and the heat sink 102.

As shown in fig. 2 and 4, the heat sink 102 may be provided with a second vent hole 123 communicating with each of the first vent holes 112, and a third vent hole 124 provided at the second annular side surface in air passage communication with the second vent hole 123. The air passage between the second air vent 123 and the third air vent 124 may be formed by a partial hollow corresponding to the air passage in the radiator 102 or a cavity formed in the whole radiator 102 and communicated with the second air vent 123 and the third air vent 124. As can be seen from fig. 4, through the air passage communication among the first air vent 112, the second air vent 123 and the third air vent 124, the air flow can pass between them, so as to perform multi-directional air cooling and heat dissipation on the circuit components such as the light emitting unit 105 (see fig. 3) carried by the carrier 101. In addition, at least one of the carrier 101 and the heat sink 102 may be selected to be made of ceramic material, preferably, both of ceramic material (such as aluminum nitride, aluminum oxide, etc.), so as to have good heat dissipation performance.

The manner of fixing between the heat sink 102 and the carrier 101 is exemplarily described with reference to fig. 2. The fastening means may be, for example, a screw fastening means.

The radiator 102 is provided with a plurality of first mounting holes 125 along the axial direction, the bearing member 101 is provided with a second mounting hole 114 corresponding to each first mounting hole 125, and the first mounting holes 125 and the second mounting holes 114 are provided for penetrating the first screw locking member 107. Illustratively, the first mounting holes 125 are through holes 1322 penetrating the heat sink 102 along the axial direction, and each of the first screw locks 107 penetrates the first mounting holes 125 and the second mounting holes 114 from an end of the through hole 1322 facing away from the carrier 101. Illustratively, the first screw 107 may be a screw, and the second mounting hole 114 may have a screw hole fixed with the first screw 107. Alternatively, in another embodiment, to cover the first screw lock 107 for alignment protection and aesthetic effect, as shown in fig. 2, the down lamp 100 further includes: cover sheet 104 fitted to the space between each adjacent two sets of first heat dissipating ribs 111. Three cover sheets 104 in three spaced apart areas are shown in fig. 2. A first screw hole (not shown) may be disposed on a surface of each cover 104 facing the carrier 101 for screwing on the first screw lock 107 to fix the carrier 101, the heat sink 102 and the cover 104 together, as shown in fig. 5A. Fig. 5A shows a schematic structural view of the assembly of fig. 4 after the carrier 101 and the heat sink 102 are fixed to the cover sheet 104. The cover sheet 104 is embedded to fill the interval area, so that the surface of the down lamp 100 is flat, and an attractive effect is achieved. In addition, in some examples, the cover sheet 104 may be made of ceramic material, which is beneficial for improving the heat dissipation performance of the down lamp 100.

In an alternative embodiment, the carrier 101, the radiator 102, and the cover plate 104 are made of ceramic materials, and have good heat conducting performance, and cooperate with the air flow of the first air vent 112, the second air vent 123, and the third air vent 124 to dissipate heat, so as to achieve good heat dissipation performance of the down lamp 100, so as to solve the problem of insufficient heat dissipation performance of the down lamp 100 in the related art.

In some embodiments, to increase the actual heat dissipation area, the carrier 101 and the heat sink 102 are bonded by a heat-conducting fluid medium. The thermally conductive fluid medium includes, but is not limited to, for example, a thermally conductive paste, or a thermally conductive silicone grease, etc.

An example structure of other components is described below, and a structure of the down lamp 100 to emit light is described.

Referring to fig. 5B, a schematic diagram of another side of the assembly of fig. 5A is shown. As can be seen from fig. 5B, the heat sink is further provided with light holes 126 corresponding to the light emitting units 105. After the carrier 101 and the heat sink 102 are fixed by screwing, the light source setting area is exposed through the light hole 126. As further shown in fig. 2, the lens 108 is disposed in the light hole 126, and covers the light source arrangement area for distributing the light emitted from the light emitting unit 105.

The lamp housing assembly 103 incorporates the lens 108 and is secured to the heat sink 102, forming an optical transmission cavity between the lens 108 and the lamp housing assembly 103. The structural relationship between adapter 131, mask 132, and bezel 133 is specifically described in connection with the example of fig. 2.

The adapter 131 includes a hollow cylinder 1311, and the hollow cylinder 1311 may be cylindrical. The hollow cylinder 1311 fixedly receives the lens 108 toward one end of the heat sink 102 to extend into the heat sink 102 to cover the lens 108 on the light source arrangement region. One end of the hollow cylinder 1311 facing away from the radiator 102 protrudes from the adaptor 131 to be combined with the mask 132. The shape of the hollow cylinder 1311 is matched with the light source installation area and the joint portion (such as the through hole 1322) with the mask 132, so that the shape of the hollow cylinder 1311, the light source installation area and the through hole 1322 of the mask 132 may be changed as required, and is not exemplified by the circular shape shown in the drawings. In some embodiments, the lens 108 and the hollow cylinder 1311 may be secured to each other by a snap fit arrangement. For example, an annular groove is provided in the hollow cylinder 1311, and an annular flange engaged with the annular groove is provided on the lens 108.

The adaptor 131 is configured to be fixed to the heat sink 102, and the fixing may be a screw lock or a snap fit. In the example of fig. 2, the adapter 131 further includes a rim 1312 disposed at least partially around a sidewall of the hollow cylinder 1311, the rim 1312 being secured to the heat sink 102. The rim 1312 illustrated in fig. 2 is a continuous annular structure that may be segmented in other embodiments. Illustratively, the rim 1312 may be provided with at least one pair of third mounting holes 13121, one on each side of the hollow cylinder 1311. And referring to fig. 5B, the heat sink 102 is provided with a second screw hole 127 corresponding to each third mounting hole 13121 for screwing with the second screw lock 109 penetrating the third mounting hole 13121. As shown in fig. 6, the structure of fig. 2 is shown in which the adapter 131 receives the lens 108 and is locked to the heat sink 102 by the second screw lock 109, and the heat sink 102 is engaged with the carrier 101. Illustratively, the rim 1312 is further provided with at least one fourth vent 13122 associated with at least one of the airways. For example, in fig. 2, the heat sink 102 is open toward one end (i.e., lower end) of the adapter 131, and forms a cavity inwardly, the cavity communicates with the light-transmitting hole 126 on the other side, and the rim 1312 of the adapter 131 covers the open end to communicate with the second and third ventilation holes 123 and 124 shown in fig. 2 through the cavity. Illustratively, the fourth air holes 13122 are arranged at intervals along the circumferential direction of the rim 1312 to form one group or two groups of structures symmetrically distributed in the drawing. Since the lamp housing assembly 103 is under the lamp housing assembly when the down lamp 100 is in use, based on the principle of rising hot air flow, in one air flow direction, referring to fig. 2, the fourth air hole 13122 may be used as an air inlet for air flow, and the air flow entering from the fourth air hole 13122 flows into the radiator 102, carries heat of circuit components such as the light emitting unit 105, and flows out from the second air hole 123 through the first air hole 112 and the third air hole 124. The air flow entering through the third vent 124 may flow out of the other third vent 124 or may flow out through the second vent 123 and the first vent 112. The fourth air hole 13122 enriches the air flow path for heat dissipation of the down lamp 100, which is helpful for further improving the heat dissipation performance of the down lamp 100. Illustratively, the axial side wall of the mask 132 is not entirely cylindrical, and has a void (see fig. 7) through which the fourth air vent 13122 is directly exposed to air to enhance heat dissipation.

The mask 132 is fixedly connected to the adapter 131. In the example of fig. 2, the mask 132 has a cylindrical structure, and a through hole 1322 sleeved with an end of the hollow cylinder 1311 facing away from the radiator 102 is disposed in the middle of the mask 132. Illustratively, the mask 132 is fixedly sleeved outside the rim 1312 of the adaptor 131 and is fixedly connected with the rim 1312. As can be seen in fig. 2, the rim 1312 is provided with at least one pair of ears 1313 extending toward the mask 132, each ear 1313 being provided with a third screw hole 13131. The wall surface of the mask 132 is provided with a fourth mounting hole 1323 corresponding to each third screw hole 13131, so as to pass through the third screw lock 110 screwed with the third screw hole 13131. When the mask 132 is mounted to the adapter 131, the through hole 1322 thereof is engaged with the hollow cylinder 1311 of the adapter 131, and the third screw lock 110 and the third screw hole 13131 are screwed to complete the fixation between the mask 132 and the adapter 131. The installed state is shown in fig. 7, which shows a schematic view of the assembly of fig. 6 secured to a mask 132.

The face frame 133 is fixed to an end of the mask 132 facing away from the adapter 131. Illustratively, in fig. 2, to facilitate the combination of the mask 132 and the face frame 133, a first engaging section 1321 with a smaller diameter is formed at an end of the mask 132 facing the face frame 133, and the face frame 133 has a second engaging section 1332 that is cooperatively engaged with the first engaging section 1321, and the first engaging section 1321 and the second engaging section 1332 may each be hollow cylindrical structures. Preferably, the second sleeve section 1332 is sleeved with the first sleeve section 1321, and then the mask 132 adjacent to the first sleeve section 1321 is kept flush, so as to keep structural flatness, that is, as shown in fig. 8, a schematic structural diagram of the mask 132 after the mask frame 133 is fixed to the mask 132 in fig. 7 is shown. Illustratively, the bezel 133 may be secured to the face mask 132 by a screw lock or snap fit. In the example of fig. 2, a snap-in fastening method is adopted. Opposite sides of the first engaging section 1321 of the mask 132 may be provided with a slot 13211, which is also shown in fig. 7, and an inner side of the second engaging section 1332 may be provided with a protrusion 13311 that is engaged with the slot 13211 in a one-to-one correspondence.

In fig. 2 and 8, the face frame 133 is provided with a light-emitting face 1333 corresponding to the through hole 1322. The light-emitting surface 1333 may or may not be provided with a light-transmitting plate, so as to facilitate heat dissipation; or in other embodiments, a light-transmitting plate (such as glass or acrylic material) may be disposed at the light-emitting surface 1333. One end of the second fitting portion of the face frame 133 is the light-transmitting plate, and the light-transmitting plate penetrates through the through hole 1322 corresponding to the other end, so as to form a light-transmitting cavity through which the light-emitting surface 1333 passes through the through hole of the first fitting section 1321, the through hole 1322 of the mask 132, and the hollow cylinder 1311 to the lens 108, so that the light emitted from the light-emitting unit 105 is emitted on the light-emitting surface 1333 through the light-transmitting cavity after being subjected to light distribution treatment by the lens 108. Illustratively, the surface of the light transmission cavity may be coated with a light reflecting material.

In summary, the above embodiments, an assembled structure of the down lamp 100 in one embodiment is shown in fig. 4 to 8. The carrier 101 is provided with a light source setting area carrying the light emitting unit 105 and is fixed to the heat sink 102 by screwing, and the light emitting unit 105 is exposed from the light hole 126 of the heat sink 102. The lens 108 covers through the light-transmitting hole 126 to cover the light source arrangement area. One end of a hollow cylinder 1311 of the adapter 131 fixedly receives the lens 108, and the adapter 131 is fixed to the heat sink 102. The adaptor 131 is further fixed to the mask 132 in a screw-locking manner, and the other end of the hollow cylinder 1311 is sleeved on the through hole 1322 of the mask 132. The face frame 133 is engaged and fixed to the face mask 132, and the light-emitting surface 1333 corresponds to the through hole 1322, so as to be able to receive the light emitted from the lens 108 and emit the light out of the light-emitting surface.

As shown in fig. 9A and 9B, the down lamp 100 may be mounted to the position to be mounted by using elastic clips 1331 protruding from both sides thereof.

The two elastic clamping pieces 1331 may be metal elastic pieces, and in fig. 9A, when the two elastic clamping pieces 1331 are to be installed at a position to be installed (e.g. in the suspended ceiling 200), the two elastic clamping pieces 1331 are kept folded towards the direction approaching to the face frame 133 so as to generate elastic deformation, so that the elastic clamping pieces 1331 can enter the position to be installed along with the down lamp 100. When the two elastic clips 1331 enter the suspended ceiling 200, the two elastic clips 1331 can be loosened, and the two elastic clips 1331 can resume to protrude outwards so as to be clamped in the suspended ceiling, so that the installation is completed as shown in fig. 9B. Shown in fig. 9B is in fact the inverted state of the down light 100 in fig. 1.

In summary, in the embodiments of the present disclosure, a down lamp is provided, including: the bearing piece is arranged around an axial direction, provided with a first surface and a second surface which are opposite along the axial direction, and provided with at least one group of first heat dissipation convex edges on a first annular side surface connecting the first surface and the second surface; wherein each first heat dissipation ridge extends from the first annular side surface to the first surface; the first surface is provided with at least one first vent hole; a light source setting area provided with a light emitting unit is formed in the middle of the bearing piece; a heat sink having a second annular side surface connected to the first annular side surface, the heat sink being fixedly connected to the second surface of the carrier along the axial direction on a surface facing the carrier; the second annular side surface is provided with a second heat dissipation convex edge which is correspondingly connected with each first heat dissipation convex edge in the axial direction; the radiator is provided with a second vent hole which corresponds to and is communicated with each first vent hole position and a third vent hole which is arranged on the second annular side surface and is communicated with the second vent hole air passage; the radiator is also provided with a light hole with a position corresponding to the light-emitting unit; the lens is arranged in the light hole and covers the light source setting area; and the lampshade assembly is combined with the lens and fixed to the radiator to form a light transmission cavity between the lens and the lampshade assembly. The heat dissipation area is increased through each first heat dissipation convex edge and each second heat dissipation convex edge, and the heat dissipation air passage formed between the vent holes is matched, so that the heat dissipation performance of the down lamp is effectively improved.

The above embodiments are merely illustrative of the principles of the present disclosure and its efficacy, and are not intended to limit the disclosure. Modifications and variations may be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present disclosure. Accordingly, it is intended that all equivalent modifications and variations which a person having ordinary skill in the art would accomplish without departing from the spirit and technical spirit of the present disclosure be covered by the claims of the present disclosure.

Claims (10)

1. A down lamp, comprising:

the bearing piece is arranged around an axial direction, provided with a first surface and a second surface which are opposite along the axial direction, and provided with at least one group of first heat dissipation convex edges on a first annular side surface connecting the first surface and the second surface; wherein each first heat dissipation ridge extends from the first annular side surface to the first surface; the first surface is provided with at least one first vent hole; a light source setting area provided with a light emitting unit is formed in the middle of the bearing piece;

a heat sink having a second annular side surface connected to the first annular side surface, the heat sink being fixedly connected to the second surface of the carrier along the axial direction on a surface facing the carrier; the second annular side surface is provided with a second heat dissipation convex edge which is correspondingly connected with each first heat dissipation convex edge in the axial direction; the radiator is provided with a second vent hole which corresponds to and is communicated with each first vent hole position and a third vent hole which is arranged on the second annular side surface and is communicated with the second vent hole air passage; the radiator is also provided with a light hole with a position corresponding to the light-emitting unit;

the lens is arranged in the light hole and covers the light source setting area;

and the lampshade assembly is combined with the lens and fixed to the radiator to form a light transmission cavity between the lens and the lampshade assembly.

2. The down lamp of claim 1, wherein a first vent hole is arranged between every two adjacent first heat dissipation ribs in each group of first heat dissipation ribs; and/or, a positioning groove is arranged at the first annular side surface part between two adjacent groups of first heat dissipation convex edges, and a third heat dissipation convex edge combined to each positioning groove is further arranged at the second annular side surface; and/or the bearing piece and the radiator are bonded through a heat conduction fluid medium.

3. The down lamp of claim 1, wherein the heat sink is provided with a plurality of first mounting holes along the axial direction, the carrier is provided with a second mounting hole corresponding to each first mounting hole, and the first mounting hole and the second mounting hole are used for penetrating through the first screw locking piece to fix the heat sink and the carrier.

4. A down lamp as defined in claim 3, further comprising: cover plates embedded into the interval area between every two adjacent groups of first heat dissipation convex edges; the first mounting holes are through holes penetrating through the radiator along the axial direction, and each first screw locking piece penetrates through the first mounting holes and the second mounting holes from one end of the through holes, which is away from the bearing piece, and is fixed on a first screw hole of a covering plate in a screw locking mode.

5. The down lamp of claim 1, wherein at least one of the carrier, the heat sink, and the cover sheet of the carrier is ceramic.

6. The downlight of claim 1, wherein the lamp housing assembly comprises:

an adapter for securing to the heat sink; the adapter comprises a hollow cylinder, and one end of the hollow cylinder, facing the radiator, fixedly receives the lens; one end of the hollow cylinder body, which is opposite to the radiator, protrudes out of the adapter;

a mask fixedly connected to the adapter and provided with a through hole sleeved with one end of the hollow cylinder body, which is opposite to the radiator;

the face frame is fixed at one end of the face mask, which is opposite to the adapter, and is provided with a light emitting surface corresponding to the through hole; wherein the through hole, the hollow cylinder body and the light emergent surface form the light transmission cavity; at least one pair of elastic clamping pieces are outwards protruded from the side face of the face frame.

7. The down lamp of claim 6, wherein the adapter further comprises a rim disposed at least partially around the hollow barrel sidewall, the rim being secured to the heat sink; the rim is also provided with at least one fourth air hole which is connected with at least one air passage.

8. The down lamp of claim 7, wherein the rim is provided with at least one pair of third mounting holes, one on each of opposite sides of the hollow cylinder; the radiator is provided with a second screw hole corresponding to each third mounting hole for screwing with a second screw locking piece penetrating through the third mounting holes; and/or, the mask forms a gap exposing at least one fourth vent hole along the axial side wall surface.

9. The down lamp of claim 7, wherein the face shield is fixedly sleeved outside the rim of the adapter and fixedly connected with the rim.

10. The down lamp of claim 9, wherein the rim is provided with at least one pair of ears extending toward the mask, each ear being provided with a third screw hole; the wall surface of the face mask is provided with a fourth mounting hole corresponding to each third screw hole, so that a third screw locking piece screwed with the third screw holes is penetrated.

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