Embedded down lamp

Abstract

The embedded down lamp comprises a power source assembly and a lamp body assembly, the lamp body assembly is fixedly arranged at the bottom of the power source assembly and electrically connected with the power source assembly, the power source assembly comprises a power source box, a circuit board and a driving power source, a heat dissipation space is arranged in the power source box, and the circuit board is fixedly arranged in the heat dissipation space. The driving power source is inversely installed on the circuit board and electrically connected with the circuit board, the circuit board divides the heat dissipation space into an upper cavity and a lower cavity, the driving power source is located in the lower cavity, the circuit board is arranged away from the lamp body assembly, and the heat dissipation space is formed between the circuit board and the lamp body assembly. Heat dissipation can be effectively achieved, heat generated when the driving power source and the lamp body assembly work is dissipated through the heat dissipation space in the power box, and therefore temperature rise is reduced, and potential safety hazards such as fire caused by too high temperature are avoided.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to an embedded downlight. Background Technology

[0002] Downlights are a common lighting device, typically installed between walls and ceilings. This space provides ventilation for the downlights during use. However, when a soundproof or heat-insulating layer is installed between the wall and ceiling, conventional downlights cannot function properly. This is because the lack of ventilation reduces the space, hindering effective heat dissipation. Consequently, the downlight's temperature gradually rises during prolonged operation, potentially causing fire hazards. Therefore, improvements are necessary. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing an embedded downlight with a simple and reasonable structure and convenient operation. It is suitable for scenarios where a sound insulation layer or heat insulation layer is filled between the wall and ceiling. By setting a heat dissipation space inside the power supply box, heat dissipation can be effectively achieved. The heat generated by the power supply and lamp body components is dissipated through the heat dissipation space inside the power supply box, thereby reducing temperature rise and avoiding safety hazards such as fire caused by excessive temperature.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The recessed downlight of this utility model includes a power supply assembly and a lamp body assembly. The lamp body assembly is fixedly disposed at the bottom of the power supply assembly and electrically connected to the power supply assembly. The power supply assembly includes a power box, a circuit board, and a driving power supply. The power box has a heat dissipation space, and the circuit board is fixedly disposed in the heat dissipation space. The driving power supply is invertedly mounted on the circuit board and electrically connected to the circuit board. The circuit board divides the heat dissipation space into an upper chamber and a lower chamber. The driving power supply is located in the lower chamber, and the circuit board is disposed away from the lamp body assembly.

[0006] Furthermore, the power supply box is made of metal.

[0007] Furthermore, the inner wall of the power supply box is provided with several inwardly protruding first snap-fit ​​parts, and the circuit board is snapped into the first snap-fit ​​parts.

[0008] Furthermore, the first latching portion includes a first latching protrusion and a second latching protrusion arranged vertically. The inner sidewall of the power supply box is provided with a first through hole corresponding to the first latching protrusion and a second through hole corresponding to the second latching protrusion. The first latching protrusion and the second latching protrusion are arranged along the width direction of the power supply box. A first mounting gap is formed between the first latching protrusion and the second latching protrusion. The circuit board is latched in the first mounting gap.

[0009] Furthermore, the inner wall of the power supply box is provided with an inwardly protruding third latch and a third through hole corresponding to the third latch. The third latch is arranged along the height direction of the power supply box, and the circuit board is provided with a notch that engages with the third latch.

[0010] Furthermore, the lamp assembly includes a lamp body, a light-transmitting cover, and a lamp plate. The lamp plate is fixedly connected to the bottom of the power supply box and electrically connected to the driving power supply. The light-transmitting cover is fixedly disposed inside the lamp body, and the lamp plate is disposed inside the light-transmitting cover.

[0011] Furthermore, a junction box is fixedly connected to the outer wall of the power supply box, and a wiring terminal is fixedly installed inside the junction box. A first wiring hole corresponding to the junction box is provided on the outer wall of the power supply box, and a second wiring hole corresponding to the lamp board is provided on the bottom of the power supply box.

[0012] Furthermore, mounting arms are fixedly connected to both sides of the lamp body, and lugs extend outward from both sides of the bottom of the power supply box. A mounting plate is provided between the power supply box and the lamp body assembly. Both ends of the mounting plate are bent downward to form bending portions. A fourth and fifth locking protrusions corresponding to the mounting arms are provided on the bending portions. A second mounting gap is formed between the fourth and fifth locking protrusions. One end of the mounting arm is fixedly connected to the lugs, and the other end of the mounting arm is engaged in the second mounting gap and extends outward to the lamp body.

[0013] Furthermore, the lamp body has an inverted "bowl" shape, and the lower end of the lamp body is provided with an outwardly extending annular flange. A first waterproof ring is provided on the annular flange, and the mounting arm abuts against the first waterproof ring.

[0014] Furthermore, the light-transmitting cover is provided with an annular mounting step, and a second waterproof ring is provided between the annular mounting step and the lamp body.

[0015] The beneficial effects of this utility model are as follows: The recessed downlight described in this utility model is suitable for scenarios where a sound insulation layer or heat insulation layer is filled between the wall and ceiling. Because there is no heat dissipation space between the wall and ceiling, conventional downlights cannot be used in this scenario. The recessed downlight described in this utility model can effectively dissipate heat by setting a heat dissipation space inside the power supply box. The heat generated by the operation of the driver power supply and the lamp body assembly is dissipated through the heat dissipation space inside the power supply box, thereby reducing the temperature rise and avoiding safety hazards such as fire caused by excessive temperature. The driver power supply is located in the lower cavity. This design allows the driver power supply not to occupy the space of the upper cavity. The circuit board can be set higher in the power supply box, making the distance between the circuit board and the lamp body assembly greater. The volume of the lower cavity is larger, and the heat dissipation effect is better. Among them, most of the heat of the driver power supply is dissipated through the upper cavity, and most of the heat of the lamp body assembly is dissipated through the lower cavity. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the present invention from a first-view perspective;

[0017] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0018] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0019] Figure 4 This is an exploded structural diagram of the present invention;

[0020] Figure 5 This is a structural diagram of the lamp body;

[0021] Figure 6 This is an exploded view of the power supply box.

[0022] Figure 7 This is a schematic diagram of the upper shell structure.

[0023] Figure 1 - Figure 7Components: 1. Power supply box; 11. Upper housing; 111. First latching protrusion; 112. Second latching protrusion; 113. Third latching protrusion; 114. First through hole; 115. Second through hole; 116. Third through hole; 117. Lug; 118. First flange; 12. Lower housing; 121. Second flange; 122. First wiring hole; 123. Second wiring hole; 13. Upper chamber; 14. Lower chamber; 3. Mounting plate; 31. Bending part; 311. Fourth latching protrusion; 312. Fifth latching protrusion; 4. Circuit board; 41. Notch; 5. Driver power supply; 6. Lamp body; 61. Mounting arm; 611. Hook; 62. Annular flange; 63. First waterproof ring; 64. Fastening part; 7. Light-transmitting cover; 71. Annular mounting step; 72. Second waterproof ring; 73. Locking hole; 8. Lamp board; 9. Junction box; 91. Wiring terminal. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1 - Figure 7 An embedded downlight is shown, comprising a power supply assembly and a lamp body assembly. The lamp body assembly is fixedly disposed at the bottom of the power supply assembly and electrically connected to the power supply assembly. The power supply assembly includes a power box 1, a circuit board 4, and a driving power supply 5. Preferably, in this embodiment, the power box 1 is made of metal material, specifically, the metal material is cold-rolled steel plate. Cold-rolled steel plate has a high thermal conductivity, which can quickly transfer heat and enhance the heat dissipation effect. The power box 1 is provided with a heat dissipation space, and the circuit board 4 is fixedly disposed in the heat dissipation space. The driving power supply 5 is mounted upside down on the circuit board 4 and electrically connected to the circuit board 4. The circuit board 4 divides the heat dissipation space into an upper chamber 13 and a lower chamber 14. The driving power supply 5 is located in the lower chamber 14, and the circuit board 4 is disposed away from the lamp body assembly.

[0026] This utility model discloses an embedded downlight suitable for scenarios where a sound insulation or heat insulation layer is filled between the wall / ceiling and the suspended ceiling. Because this layer provides no heat dissipation space, conventional downlights are unsuitable for such situations. This embedded downlight, by incorporating a heat dissipation space within the power supply box 1, effectively dissipates heat. The heat generated by the driver power supply 5 and the lamp assembly is dissipated through this space, reducing temperature rise and preventing fires caused by overheating. The potential drawback is that the driver power supply 5 is located in the lower chamber 14. This design prevents the driver power supply 5 from occupying the space of the upper chamber 13, allowing the circuit board 4 to be placed higher within the power supply box 1, thus increasing the distance between the circuit board 4 and the lamp assembly. The lower chamber 14 is also larger, resulting in better heat dissipation. Most of the heat from the driver power supply 5 is dissipated through the upper chamber 13, while most of the heat from the lamp assembly is dissipated through the lower chamber 14. Since the lamp assembly generates more heat than the driver power supply 5 during operation, a larger lower chamber 14 results in better heat dissipation.

[0027] Preferably, in this embodiment, refer to Figure 7 The inner side wall of the power supply box 1 is provided with several inwardly protruding first snap-fit ​​parts, and the circuit board 4 is snapped into the first snap-fit ​​parts to ensure the reliability of the connection between the circuit board 4 and the power supply box 1.

[0028] Preferably, in this embodiment, refer to Figure 7 The first latching part includes a first latching protrusion 111 and a second latching protrusion 112 arranged vertically. The inner sidewall of the power supply box 1 is provided with a first through hole 114 corresponding to the first latching protrusion 111 and a second through hole 115 corresponding to the second latching protrusion 112. The first latching protrusion 111 and the second latching protrusion 112 are arranged along the width direction of the power supply box 1. A first mounting gap is formed between the first latching protrusion 111 and the second latching protrusion 112. The circuit board 4 is latched in the first mounting gap. The first through hole 114 and the second through hole 115 can also serve as heat dissipation holes to assist in heat dissipation.

[0029] Preferably, in this embodiment, refer to Figure 7 The inner wall of the power supply box 1 is also provided with an inwardly protruding third latching protrusion 113 and a third through hole 116 corresponding to the third latching protrusion 113. The third latching protrusion 113 is arranged along the height direction of the power supply box 1. The circuit board 4 is provided with a notch 41 that engages with the third latching protrusion 113 to ensure that the circuit board 4 can be tightly connected to the power supply box 1 and is not easy to loosen. The third through hole 116 can also serve as a heat dissipation hole to assist in heat dissipation.

[0030] Preferably, in this embodiment, refer to Figure 4The lamp assembly includes a lamp body 6, a light-transmitting cover 7, and a lamp plate 8. The lamp plate 8 is fixedly connected to the bottom of the power supply box 1 and electrically connected to the driving power supply 5. The light-transmitting cover 7 is fixedly disposed inside the lamp body 6, and the lamp plate 8 is disposed inside the light-transmitting cover 7. The light-transmitting cover 7 can effectively protect the lamp plate 8.

[0031] Preferably, in this embodiment, refer to Figure 4 A junction box 9 is fixedly connected to the outer wall of the power supply box 1. A wiring terminal 91 is fixedly installed inside the junction box 9. A first wiring hole 122 corresponding to the junction box 9 is provided on the outer wall of the power supply box 1. A second wiring hole 123 corresponding to the lamp board 8 is provided on the bottom of the power supply box 1 for easy wiring. Preferably, the junction box 9 is designed with a silicone protective sleeve. This design not only provides good insulation protection but also effectively prevents the wiring terminals 91 inside the junction box 9 from being corroded and contaminated by the external environment. The softness and elasticity of the silicone protective sleeve make the junction box 9 easier to install and remove, while also providing a certain degree of waterproofing and dustproofing.

[0032] Preferably, in this embodiment, refer to Figure 1 The lamp body 6 has mounting arms 61 fixedly connected to both sides, and the bottom of the power supply box 1 has lugs 117 extending outward from both sides. Specifically, see [reference needed]. Figure 6The power supply box 1 includes an upper shell 11 and a lower shell 12, which are connected to each other. The upper shell 11 has first extensions extending downwards on its left and right sides. The lower ends of the first extensions have lugs 117 extending outwards. The first extensions have a first latching protrusion 111, a second latching protrusion 112, a third latching protrusion 113, a first through hole 114, a second through hole 115, and a third through hole 116. The upper shell 11 has first flanges 118 on its front and rear sides that correspond to and cooperate with the lower shell 12. The lower shell 12 has a first wiring hole 122 and a second wiring hole 123. The lower shell 12 has second extensions extending upwards on its front and rear sides. Specifically, the second extensions have the first wiring hole 122; both ends of the second extensions have second flanges 121 that correspond to and cooperate with the upper shell 11. The first flanges 118 and the second flanges 121... 1. It can effectively prevent the separation of the upper shell 11 and the lower shell 12, ensuring the reliability of the connection; a mounting plate 3 is provided between the power supply box 1 and the lamp body assembly. The two ends of the mounting plate 3 are bent downward to provide bending parts 31. The bending parts 31 are provided with a fourth locking protrusion 311 and a fifth locking protrusion 312 that correspond to the mounting arm 61. A second installation gap is formed between the fourth locking protrusion 311 and the fifth locking protrusion 312. One end of the mounting arm 61 is fixedly connected to the lug 117. The other end of the mounting arm 61 is locked in the second installation gap and extends outward to the outside of the lamp body 6. Preferably, the end of the mounting arm 61 away from the mounting plate 3 is provided with a downwardly extending hook 611. The hook 611 can hook the sound insulation layer or heat insulation layer, making the connection more stable and reliable. The mounting arm 61 is elastic. During the installation and disassembly of the downlight, the mounting arm 61 can naturally unfold and retract, and is not easily deformed or damaged.

[0033] Specifically, see Figure 3 The mounting arm 61 and the lug 117 are fixedly connected by connecting screws, which pass through the mounting arm 61 and the lug 117 in sequence and are fixedly connected to the mounting plate 3.

[0034] Preferably, in this embodiment, refer to Figure 4 The lamp body 6 has an inverted "bowl" shape, which is more aesthetically pleasing. The lower end of the lamp body 6 is provided with an outwardly extending annular flange 62. The annular flange 62 is provided with a first waterproof ring 63. The mounting arm 61 abuts against the first waterproof ring 63. Specifically, the first waterproof ring 63 is fixed by adhesive, which can effectively prevent the first waterproof ring 63 from shifting or falling off during use.

[0035] Preferably, in this embodiment, refer to Figure 4The light-transmitting cover 7 is provided with an annular mounting step 71, and a second waterproof ring 72 is provided between the annular mounting step 71 and the lamp body 6. Specifically, the light-transmitting cover 7 is fastened to the lamp body 6 to fix the second waterproof ring 72 therein. By setting the first waterproof ring 63 and the second waterproof ring 72, the waterproof effect of the downlight can be significantly improved. The upper inner wall of the lamp body 6 is provided with a fastening part 64 along the circumference, and the upper outer wall of the light-transmitting cover 7 is provided with a corresponding locking hole 73 along the circumference. The fastening part 64 and the locking hole 73 are fastened together, and the connection relationship is stable and reliable.

[0036] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An embedded downlight, comprising a power supply assembly and a lamp body assembly, wherein the lamp body assembly is fixedly disposed at the bottom of the power supply assembly and electrically connected to the power supply assembly, characterized in that: The power supply assembly includes a power supply box (1), a circuit board (4) and a driving power supply (5). The power supply box (1) has a heat dissipation space, and the circuit board (4) is fixedly installed in the heat dissipation space. The driving power supply (5) is installed upside down on the circuit board (4) and electrically connected to the circuit board (4). The circuit board (4) divides the heat dissipation space into an upper chamber (13) and a lower chamber (14). The driving power supply (5) is located in the lower chamber (14). The circuit board (4) is located away from the lamp body assembly.

2. The recessed downlight according to claim 1, characterized in that: The power supply box (1) is made of metal.

3. The recessed downlight according to claim 1, characterized in that: The inner wall of the power supply box (1) is provided with several inwardly protruding first snap-fit ​​parts, and the circuit board (4) is snap-fitted with the first snap-fit ​​parts.

4. An embedded downlight according to claim 3, characterized in that: The first latching part includes a first latching protrusion (111) and a second latching protrusion (112) arranged vertically. The inner sidewall of the power supply box (1) is provided with a first through hole (114) corresponding to the first latching protrusion (111) and a second through hole (115) corresponding to the second latching protrusion (112). The first latching protrusion (111) and the second latching protrusion (112) are arranged along the width direction of the power supply box (1). A first mounting gap is formed between the first latching protrusion (111) and the second latching protrusion (112). The circuit board (4) is latched in the first mounting gap.

5. An embedded downlight according to claim 1, characterized in that: The inner wall of the power supply box (1) is also provided with a third protrusion (113) protruding inward and a third through hole (116) corresponding to the third protrusion (113). The third protrusion (113) is arranged along the height direction of the power supply box (1). The circuit board (4) is provided with a notch (41) that engages with the third protrusion (113).

6. An embedded downlight according to claim 1, characterized in that: The lamp assembly includes a lamp body (6), a light-transmitting cover (7) and a lamp plate (8). The lamp plate (8) is fixedly connected to the bottom of the power supply box (1) and electrically connected to the driving power supply (5). The light-transmitting cover (7) is fixedly installed inside the lamp body (6), and the lamp plate (8) is installed inside the light-transmitting cover (7).

7. An embedded downlight according to claim 6, characterized in that: A junction box (9) is fixedly connected to the outer wall of the power supply box (1). A terminal block (91) is fixedly installed inside the junction box (9). A first wiring hole (122) corresponding to the junction box (9) is provided on the outer wall of the power supply box (1). A second wiring hole (123) corresponding to the lamp board (8) is provided at the bottom of the power supply box (1).

8. An embedded downlight according to claim 6, characterized in that: Mounting arms (61) are fixedly connected to both sides of the lamp body (6). Lugs (117) extend outward from both sides of the bottom of the power supply box (1). Mounting plate (3) is provided between the power supply box (1) and the lamp body assembly. The two ends of the mounting plate (3) are bent downward to provide bending parts (31). The bending parts (31) are provided with a fourth locking protrusion (311) and a fifth locking protrusion (312) that correspond to the mounting arms (61). A second mounting gap is formed between the fourth locking protrusion (311) and the fifth locking protrusion (312). One end of the mounting arm (61) is fixedly connected to the lugs (117), and the other end of the mounting arm (61) is locked in the second mounting gap and extends outward to the outside of the lamp body (6).

9. An embedded downlight according to claim 8, characterized in that: The lamp body (6) has an inverted "bowl" shaped structure. The lower end of the lamp body (6) is provided with an outwardly extending annular flange (62). The annular flange (62) is provided with a first waterproof ring (63). The mounting arm (61) abuts against the first waterproof ring (63).

10. An embedded downlight according to claim 6, characterized in that: The light-transmitting cover (7) is provided with an annular mounting step (71), and a second waterproof ring (72) is provided between the annular mounting step (71) and the lamp body (6).

Images