CN209782398U - a downlight - Google Patents

Abstract

The utility model relates to the technical field of lamps, and provides a downlight, including a shell, a light source assembly, a driving assembly and a driving box, wherein one end of the shell is provided with an opening, and the other end of the shell is a light outlet, and the light source assembly is arranged on a side of the shell away from the light outlet through a fastener, and the light emitted by the light source assembly is emitted toward the light outlet through the opening; the driving assembly is arranged in the driving box, and the driving box is arranged on the shell and covers the light source assembly. By arranging an opening at one end of the shell close to the driving box, so as to arrange the light source assembly on the outer surface of the shell, the installation of the light source assembly is facilitated, and at the same time, the arrangement of the opening reduces the weight of the shell and saves costs, so that the downlight of the utility model has the advantages of light weight, low cost and convenient installation of the light source assembly.

Description

a downlight

technical field

The utility model relates to the technical field of lamps, in particular to a downlight.

Background technique

A downlight is a lighting fixture that is embedded in the ceiling and emits light downward. The current downlight includes: a light source assembly, a casing and a drive assembly, wherein the casing is generally cylindrical with a light outlet at one end, the light source assembly is arranged on the bottom inner surface of the casing, and the drive assembly is arranged on the bottom outer surface of the casing , this installation method makes the installation of the light source component and the drive component inconvenient, and the structure is not compact enough. When the heat sink is large, the downlight is also heavy, and the structure of the downlight still needs to be further optimized.

Utility model content

The purpose of the utility model is to provide a downlight, aiming to solve the technical problems of inconvenient installation of light source components and uncompact structure in the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a downlight, including a housing, a light source assembly, a driving assembly and a driving box, one end of the housing is provided with an opening, and the other end of the housing is One end is a light outlet, and the light source assembly is arranged on the side of the housing away from the light outlet through fasteners, and is sandwiched between the housing and the drive box. The light emitted by the light source assembly The light is emitted to the light outlet through the opening; the driving assembly is arranged in the driving box.

Preferably: the opening includes: a round hole and a plurality of side holes formed by the edges of the round hole protruding outward, the light source assembly includes: a substrate and a plurality of lamp beads, a plurality of the The lamp bead is arranged in the middle of the base plate and placed in the circular hole.

Preferably: the substrate includes: a circular portion, and a plurality of covering portions formed by protruding edges of the circular portion, a plurality of the lamp beads are arranged on the circular portion, and the circular portion The shape part corresponds to the round hole part, the cover part corresponds to the side hole part and overlaps the housing, and there is an inner notch between adjacent cover parts.

Preferably: the housing is in the shape of a horn, the light outlet is a bell mouth, a reflective cup is arranged inside the housing, the reflective cup is in the shape of a horn, and a light-transmitting cover is provided at the light outlet.

Preferably: the side wall of the housing is provided with a plurality of radially inwardly protruding and circumferentially distributed protrusions, and the outer peripheral wall of the light-transmitting cover is provided with a ring groove, and each of the protrusions snaps into the The ring groove is used to fix the light-transmitting cover in the housing.

Preferably: the end of the housing away from the light source assembly is detachably provided with a decorative ring.

Preferably, the driving box includes: a lower box and an upper box, the lower box is arranged on the housing through the fastener, and the upper box is engaged with the lower box.

Preferably: the housing is provided with a plurality of positioning holes and threaded holes, the light source assembly is provided with a plurality of through holes coaxial with the positioning holes and the threaded holes, and the lower box is provided with There is a positioning column that passes through the through hole and is inserted into the positioning hole, and a threaded column that passes through the through hole and connects with the threaded hole, and the fastener is a screw.

Preferably, a plurality of spaced shrapnels are arranged between the casing and the drive box, one end of the shrapnel is rotatably arranged on the casing, and the other end protrudes from the outer surface of the casing, so that One end of the drive box close to the casing is provided with a relief groove for the rotation of the casing, and the position of the relief groove corresponds to the position of the inner notch.

Preferably: the drive assembly includes: a drive circuit board, and a toggle switch or potentiometer arranged on the drive circuit board for adjusting the color temperature; Move the switch or toggle the switch button of the potentiometer;

Alternatively, the drive assembly includes: a drive circuit board, and a smart card arranged on the drive circuit board for adjusting the color temperature, and the smart card is provided with a wireless communication device for information transmission with external terminal equipment. module.

The beneficial effects of the utility model:

In the downlight provided by the utility model, an opening is provided at one end of the casing close to the drive box, so that the light source assembly is arranged on the outer surface of the casing to ensure that the light can be emitted from the light outlet, and it is also convenient for the light source assembly to connect with the light source. The installation of the drive assembly and the setting of the opening reduce the weight of the housing and save costs, so that the downlight of the present invention has the advantages of light weight, compact structure and low cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Figure 1 is a schematic diagram of the overall structure of the downlight provided by the embodiment of the present invention;

Fig. 2 is a schematic diagram of the explosion structure of the downlight in the embodiment of the utility model;

Fig. 3 is a three-dimensional structural schematic diagram of the shrapnel, the housing and the light source assembly in the embodiment of the utility model;

Fig. 4 is a schematic cross-sectional structure diagram of a downlight in an embodiment of the present invention;

Fig. 5 is the enlarged view of place A in Fig. 4;

Fig. 6 is a schematic diagram of the structure of the drive box and the light source assembly in an embodiment of the utility model;

Fig. 7 is an exploded structure diagram of the drive box and a drive assembly in the embodiment of the present invention;

Fig. 8 is a schematic diagram of the structure of the upper box in an embodiment of the present invention;

Fig. 9 is a schematic diagram of the exploded structure of the drive box and another drive assembly in the embodiment of the present invention.

Reference signs: 1, shell; 11, opening; 111, round hole; 112, side hole; 12, bump; 13, positioning hole; 14, threaded hole; 15, baffle; 16, notch; 2. Light source component; 21. Substrate; 211. Through hole; 212. Round part; 213. Cover part; 214. Inner notch; 215. Wiring hole; 22. Lamp bead; Circuit board; 32, toggle switch; 33, smart card; 4, drive box; 41, upper box; 411, switch button; 412, card slot; 413, mounting column; 42, lower box; 421, avoidance slot ;422, snap hook; 423, positioning column; 424, threaded column; 5, shrapnel; 51, horizontal part; 52, inclined part; 53, embossing; Cover; 81, ring groove; 9, fastener; 10, lamp cap assembly.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Please refer to FIGS. 1-3 , a downlight includes a housing 1 , a light source assembly 2 , a driving assembly 3 and a driving box 4 . Wherein, one end of the housing 1 is provided with an opening 11, and the other end of the housing 1 is a light outlet. Between the driving box 4 and the light source assembly 2 , the light emitted by the light source assembly 2 is directed to the light outlet through the opening 11 ; the driving assembly 3 is arranged in the driving box 4 .

In the downlight provided by the utility model, the driving box 4 and the housing 1 cooperate to cover the light source assembly 2 for protecting the light source assembly 2, wherein, by setting the housing 1 close to one end of the driving box 4 The opening 11 is used to arrange the light source assembly 2 on the outer surface of the housing 1, while ensuring that the light can be emitted from the light outlet, it is also convenient for the installation of the light source assembly 2 and the driving assembly 3. At the same time, the setting of the opening 11 reduces the pressure on the housing The weight of the body 1 is reduced, and the cost is saved, so that the downlight of the present invention has the advantages of light weight, compact structure and low cost.

As shown in Fig. 1 and Fig. 2, the downlight of this embodiment further includes: a lamp cap assembly 10, one end of the lamp cap assembly 10 is electrically connected to the drive assembly 3, and the other end is used for connecting to an external power source, so as to supply power to the downlight.

Preferably, as shown in FIG. 3 , the opening 11 includes: a round hole portion 111 and a plurality of side hole portions 112 formed by radially outwardly protruding edges of the round hole portion 111 . In this embodiment, the side hole portions 112 There are two interval settings. In this embodiment, the light source assembly 2 includes: a substrate 21 and a plurality of lamp beads 22, the plurality of lamp beads 22 are arranged in the middle of the substrate 21 and placed in the circular hole 111, and the lamp beads 22 are arranged in the middle of the substrate 21, This is conducive to the concentrated light emitted from the light outlet. The setting of the side hole portion 112 is used to further reduce the weight of the housing 1 .

Preferably, as shown in FIG. 3 , in this implementation, the substrate 21 includes: a circular portion 212 and a plurality of covering portions 213 formed by radially protruding from the edges of the circular portion 212 , and there are three covering portions 213 , A plurality of lamp beads 22 are arranged on the circular part 212, and the circular part 212 corresponds to the circular hole part 111, wherein two covering parts 213 correspond to the two side hole parts 112 and are overlapped on the housing 1, which can improve the The stability of the substrate 21 installed on the housing 1 and the inner notch 214 between the adjacent covering parts 213 are used to reduce the weight of the substrate 21 and reduce the contact area between the substrate 21 and the housing 1 .

Preferably: as shown in Figure 3, the housing 1 is in the shape of a horn, and the light outlet is a horn mouth. This setting can increase the irradiation area of the light source assembly 2, and also prevent the downlight from being damaged when the downlight is installed in the cavity of the ceiling. Extending too much will affect the decorative effect of the downlight.

In this embodiment, the housing 1 is made of metal material, specifically aluminum, copper, iron or other alloy materials. In other embodiments, the housing 1 is made of plastic material, specifically PA plastic (English name: Polyamide), PBT (polybutylene terephthalate, English name: polybutylene terephthalate), PC (polycarbonate, English name: Polycarbonate), PS (polystyrene series plastics, English name: Polystyrene) or ABS (acrylonitrile-butadiene-styrene plastic, English name: acrylonitrile–butadiene–styrene copolymer) plastic material.

Preferably: as shown in FIG. 2 , FIG. 4 and FIG. 5 , in this embodiment, a reflective cup 7 is provided inside the housing 1 , and a light-transmitting cover 8 is provided at the light outlet. Wherein, the reflective cup 7 is also arranged in a trumpet shape, and the reflective cup 7 is similar to a mirror for reflecting light. utilization rate. The light-transmitting cover 8 not only has a light-transmitting effect, but also protects the light source assembly 2 and improves aesthetics.

Preferably: as shown in Figure 4 and Figure 5, the side wall of the housing 1 is provided with a plurality of radially inwardly protruding, circumferentially distributed protrusions 12, and the outer peripheral wall of the light-transmitting cover 8 is provided with an annular groove 81 , each protrusion 12 snaps into the ring groove 81 to fix the translucent cover 8 in the housing 1 . Among them, the reflective cup 7 is installed in the housing 1 through the light-transmitting cover 8, one end of the reflective cup 7 abuts on the light source assembly 2, and the other end abuts on the light-transmitting cover 8, and the light-transmitting cover 8 can adopt a smooth surface or Made of frosted glass or plastic. In other embodiments, the light-transmitting cover 8 is fixed on the casing 1 by means of gluing or buckling; or, the light-transmitting cover 8 is screwed to the casing 1 . Wherein, the bump 12 is formed by stamping inwardly on the outer surface of the housing 1 , so that the bump 12 is easy to form and has a firm structure.

Preferably: as shown in FIG. 3 , FIG. 4 and FIG. 5 , the end of the housing 1 away from the light source assembly 2 is detachably provided with a decorative ring 6 . Specifically, a notch 16 is provided on the housing 1, and a hook (not shown) is provided on the decorative surface ring 6, the hook is inserted through the notch 16, and then the decorative surface ring 6 or the housing 1 is rotated. so that the hook and the housing 1 can be hooked to realize the installation of the decorative surface ring 6, which has the advantage of convenient installation. In other embodiments, the decorative surface ring 6 can be fixed on the housing 1 by gluing such as double-sided tape. superior. In this embodiment, the hook is L-shaped, and there is an insertion groove between the hook and the decorative surface ring 6 , and the housing 1 is snapped into the insertion groove through the notch 16 to realize fixed assembly.

In this embodiment, the decorative surface ring 6 is made of metal material, specifically, aluminum, iron, copper or other alloy materials can be used. In other embodiments, the decorative surface ring 6 is made of plastic material, and specifically, PA can be used for heat conduction. material, PBT, PC, PS or ABS plastic material. In this embodiment, the surface color of the decorative surface ring 6 can be set to different colors according to the requirements of the scene, such as white, nickel, bronze and so on. The design of the decorative surface ring 6 can facilitate the application of the downlight in different scenes, that is, it only needs to replace the decorative surface ring 6 of different colors in different scenes, which improves the diversity of the appearance of the downlight.

Preferably: as shown in Figure 6, Figure 7 and Figure 8, in this embodiment, the drive box 4 includes: a lower box 42 and an upper box 41, the lower box 42 is arranged on the housing 1 through a fastener 9, and the upper box 4 The box 41 is engaged with the lower box 42 . In this way, the assembly of the drive box 4 and the housing 1 is realized, which has the advantage of convenient installation. The upper box 41 and the lower box 42 are snapped together, which facilitates the installation of the drive assembly 3 .

Specifically, as shown in Figures 3 and 6, a plurality of positioning holes 13 and threaded holes 14 are provided on the housing 1, and a plurality of through holes coaxial with the positioning holes 13 and the threaded holes 14 are provided on the light source assembly 2. 211, the lower box 42 is provided with a positioning post 423 which passes through the through hole 211 and is inserted into the positioning hole 13, and a threaded post 424 which passes through the through hole 211 and connects with the threaded hole 14, and the fastener 9 is a screw. The light source assembly 2, the driving box 4 and the housing 1 are fixedly connected by the same set of screws, which reduces the assembly process and saves the number of screws, and improves the assembly efficiency. Wherein, the setting of the positioning post 423 and the positioning hole 13 is to further facilitate the assembly of the casing 1 and the driving box 4, so as to improve the assembly efficiency.

Specifically, as shown in FIG. 3 and FIG. 6, in this embodiment, the substrate 21 is an aluminum substrate, and a plurality of lamp beads 22 are arranged and distributed in a circle. In this embodiment, the lamp beads 22 are LDE lamps Beads, its model can be used: one or more of 2835, 3030, 5050, 5630 or 3014 LED lamp beads. In this embodiment, the lamp beads 22 are installed in multiples of 2 and installed in mixed models and in parallel, so that each lamp bead 22 can be controlled individually to display illumination with different color temperatures and different brightnesses. In this embodiment, each through hole 211 is provided on the base plate 21 , and wire passing holes 215 are provided on the base plate 21 and the drive box 4 , so as to facilitate the routing of electric wires to realize the electrical connection between the drive assembly 3 and the light source assembly 2 .

Preferably: as shown in Fig. 1, Fig. 3 and Fig. 6, a plurality of shrapnels 5 arranged at intervals are rotated between the casing 1 and the drive box 4, one end of the shrapnel 5 is rotatably arranged on the casing 1, and the other end extends Out of the outer surface of the housing 1, the end of the lower box 42 near the housing 1 is provided with an escape groove 421 for the rotation of the housing 1. The position of the escape groove 421 corresponds to the position of the inner notch 214, so that the inner notch 214 And the avoidance groove 421 can facilitate the rotation of the shrapnel 5. The casing 1 is also provided with a baffle 15 for limiting the continuous rotation of the shrapnel 5 to one side. When the shrapnel 5 rotates to the baffle 15, the length of the shrapnel 5 protruding from the surface of the casing 1 is the longest. At this time, the downlight It is stably installed on the ceiling, that is, the maximum outer diameter formed by the plurality of shrapnel 5 at the baffle plate 15 is larger than the inner diameter of the placement cavity, so that the shrapnel 5 abuts against the inner wall of the placement cavity to form a friction force.

When it is necessary to install the downlight in the placement cavity of the ceiling, first rotate the shrapnel 5 to the baffle 15, and then insert the downlight into the placement cavity to complete the quick installation of the downlight; when the downlight needs to be disassembled , rotate the downlight, the friction force between the shrapnel 5 and the inner wall of the placement cavity makes the shrapnel 5 rotate relative to the housing 1, so that the shrapnel 5 rotates away from the baffle 15 and gradually contacts with the side of the placement cavity The walls are separated to facilitate the disassembly of the downlight, which increases user comfort.

Preferably, as shown in FIG. 3 , in this embodiment, when there are two elastic pieces 5, the two elastic pieces 5 are arranged symmetrically; The distance is set on the housing 1. The number of shrapnels 5 can be increased according to the overall weight of the downlight. In this embodiment, three shrapnels 5 are preferably provided. Using the triangle theorem, the downlight can be installed stably while saving materials and reducing costs.

In this embodiment, the elastic piece 5 is a V-shaped elastic piece. The elastic piece 5 includes: a horizontal part 51, and an inclined part 52 extending from one end of the horizontal part 51. The angle β between them is 95°～180°. The shrapnel 5 is set in a V shape, so that the inclined part 52 has a guiding and rebounding effect relative to the horizontal part 51, so that when the shrapnel 5 is located at the baffle 15, the downlight can also be directly inserted into the placement cavity of the ceiling, which is further convenient The installation of the downlight; preferably, β is 150°, and the shrapnel 5 is integrally formed. In this embodiment, the shrapnel 5 is made of steel.

In this embodiment, the length ratio between the horizontal portion 51 and the inclined portion 52 is 0.5-2. Preferably, the length ratio of the horizontal part 51 and the inclined part 52 is 1-1.5. In the above length ratio, when the length ratio of the horizontal part 51 and the inclined part 52 is smaller, the load-bearing capacity of the elastic piece 5 is stronger, and the installation is stable. Sex is better.

In this embodiment, an indentation 53 is provided on the side of the junction of the horizontal portion 51 and the inclined portion 52 away from the included angle β, and the indentation 53 forms a reinforcing rib at the included angle β. The indentation 53 is used to increase the deformation resistance between the inclined part 52 and the horizontal part 51 , so as to improve the load-bearing capacity of the elastic piece 5 , wherein the horizontal part 51 is rotatably arranged on the housing 1 by riveting. In this embodiment, the rotation angle α of the shrapnel 5 is 0° to 60°, that is, the angle at which the shrapnel 5 rotates relative to the baffle 15 is 0° to 60°. When the shrapnel 5 abuts against the baffle 15, the angle is 0°. Preferably, α is 60°, so that the rotation angle of the elastic piece 5 reaches the maximum, which facilitates the complete separation of the elastic piece 5 from the side wall of the placement cavity.

In this embodiment, as shown in FIG. 1 , FIG. 5 and FIG. 6 , the drive box 4 includes: a detachable upper box 41 and a lower box 42 .

Preferably: as shown in Fig. 6, Fig. 7 and Fig. 8, in an implementation of this embodiment, the driving assembly 3 includes: a driving circuit board 31, and a color temperature adjustment device arranged on the driving circuit board 31 The toggle switch 32; specifically, the upper box 41 is provided with an installation port, through which a switch button 411 for toggling the toggle switch 32 is provided. In other embodiments, the toggle switch 32 can use a potentiometer replace. Wherein, the toggle switch 32 or the potentiometer is used to adjust the color temperature, light intensity and opening and closing of the lamp bead 22 on the light source assembly 2, so as to realize the display of different color temperature and light intensity of the light source assembly 2.

In this embodiment, several mounting posts 413 are provided in the upper box 41 , and the driving circuit board 31 is fixed in the driving box 4 by fasteners 9 such as screws. Wherein, the screw passes through the lower box 42 from the outside of the lower box 42 and is threadedly connected with the mounting column 413 in the upper box 41. When the upper box 41 is made of plastic material, the screw can be a self-tapping screw.

In this embodiment, the upper box 41 and the lower box 42 are fixed by clamping; specifically, a plurality of hooks 422 are arranged at intervals on the lower box 42, and a supply hook is provided on the inner side wall of the upper box 41. 422 is snapped into the card slot 412, so that the upper box 41 and the lower box 42 have the advantages of convenient installation through the hook 422 and the card slot 412, and at the same time, they are further fixed by screws, which effectively ensures the installation of the upper box 41 and the lower box 42 of firmness.

As shown in Figure 9, in another implementation of this embodiment, the drive assembly 3 includes: a drive circuit board 31, and a smart card 33 arranged on the drive circuit board 31 for adjusting the color temperature; wherein, The smart small card 33 is vertically arranged on the driving circuit board 31, and the smart small card 33 is fixed by welding to realize the conduction of the photoelectric signal. The smart card 33 is provided with a wireless communication module. The wireless communication module includes: a built-in antenna and an external antenna to realize the control of different functions of the lamp bead 22, such as dimming, color adjustment or opening and closing. The wireless communication module is also used for Information transmission with external terminal equipment. The external terminal device can be a mobile phone, a computer, a remote control or a switch control panel, etc. Both the external terminal device and the smart small card 33 transmit information through APP, Bluetooth, or wife. In this implementation, the shape of the smart small card 33 can be square, rectangular, circular or irregular. When the smart small card 33 is adopted, the upper box 41 does not need to open an installation opening, which improves the dustproofness of the drive box 4 .

The downlight provided by the utility model has the advantages of convenient installation and disassembly by rotating the shrapnel 5 provided; through the detachable decorative surface ring 6, the ability of the downlight to be suitable for different application scenarios is improved, ensuring its Aesthetics and coordination; by setting the opening 11 on the housing 1, the light source assembly 2 is placed on the outer surface of the housing 1, thereby facilitating the installation of the light source assembly 2, saving materials and reducing the weight of the downlight, and the cost is lower low to improve its market competitiveness; through the toggle switch 32 or potentiometer or smart card 33 set on the drive assembly 3, the downlight can display different color temperatures and different light intensities, which improves the diversity of downlight lighting, and The downlight can realize one lamp with multiple functions, further improving the market competitiveness of the downlight.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A downlight, comprising a housing, a light source assembly, a drive assembly and a drive box, characterized in that: one end of the housing is provided with an opening, the other end of the housing is a light outlet, and the light source The component is arranged on the side of the housing away from the light outlet through fasteners, and is sandwiched between the housing and the drive box, and the light emitted by the light source component is directed to the The light outlet; the driving assembly is arranged in the driving box. 2. A downlight according to claim 1, characterized in that: the opening comprises: a circular hole and a plurality of side holes formed by the edges of the circular hole protruding outward, the The light source assembly includes: a substrate and a plurality of lamp beads, and the plurality of lamp beads are arranged in the middle of the substrate and placed in the circular hole. 3. A downlight according to claim 2, characterized in that: the base plate comprises: a circular portion, and a plurality of covering portions formed by protruding outward from the edge of the circular portion, and the plurality of covering portions The lamp bead is arranged on the circular part, the circular part corresponds to the round hole part, the cover part corresponds to the side hole part and is overlapped on the housing, adjacent to the There are inner notches between the covering parts. 4. A downlight according to claim 1, characterized in that: the housing is trumpet-shaped, the light outlet is a trumpet mouth, and a reflective cup is arranged inside the housing, and the reflective cup is trumpet-shaped , the light outlet is provided with a light-transmitting cover. 5. A downlight according to claim 4, characterized in that: the side wall of the casing is provided with a plurality of radially inwardly convex protrusions distributed in a circle, and the outer periphery of the light-transmitting cover The wall is provided with an annular groove, and each of the protrusions is snapped into the annular groove to fix the light-transmitting cover in the housing. 6. A downlight according to claim 5, characterized in that: the end of the housing away from the light source assembly is detachably provided with a decorative ring. 7. A downlight according to claim 1, characterized in that: the drive box comprises: a lower box and an upper box, the lower box is arranged on the housing through the fastener, the The upper box is engaged with the lower box. 8. A downlight according to claim 7, characterized in that: the housing is provided with a plurality of positioning holes and threaded holes, and the light source assembly is provided in a plurality of positioning holes and the screw holes. A threaded hole coaxial with the through hole, the lower box is provided with a positioning column that passes through the through hole and is inserted into the positioning hole, and a threaded thread that passes through the through hole and connects with the threaded hole column, the fasteners are screws. 9. A downlight according to claim 3, characterized in that: a plurality of shrapnels arranged at intervals are rotated between the casing and the drive box, and one end of the shrapnel is rotatably arranged on the casing , the other end protrudes from the outer surface of the housing, and one end of the drive box close to the housing is provided with an avoidance groove for the rotation of the housing, and the position of the avoidance groove is consistent with the inner concave corresponding to the position of the mouth. 10. A downlight according to any one of claims 1 to 9, characterized in that: the driving assembly comprises: a driving circuit board, and a dial for adjusting the color temperature arranged on the driving circuit board A toggle switch or a potentiometer, the drive box is provided with a switch button for toggling the toggle switch or toggling the potentiometer; Alternatively, the drive assembly includes: a drive circuit board, and a smart card arranged on the drive circuit board for adjusting the color temperature, and the smart card is provided with a wireless communication device for information transmission with external terminal equipment. module.