Non-direct-emission lamp with high light emitting rate

Abstract

The utility model discloses a non-direct-radiation lamp with high light emitting rate, which comprises an inner cup, a light guide plate, a light guide plate and a light guide plate, the radiator is hinged to the inner cup, the radiator can swing and rotate relative to the inner cup, and a second light intercepting opening is formed in the radiator; the lamp arm is arranged on the radiator, and a light source is arranged at the bottom of the lamp arm; the reflection cup is arranged in the radiator, and the reflection cup is located below the light source; when the radiator does not swing relative to the inner cup, the vertical projection of the second light cutting opening is located in the vertical projection of the first light cutting opening; and when the radiator swings to a stroke end point relative to the inner cup, the vertical projection of the second light cutting opening is located in the vertical projection of the first light cutting opening. And the light emitting rate is better.

Description

Technical Field

[0001] This utility model relates to lighting fixtures, specifically a non-direct light fixture with high light output. Background Technology

[0002] Non-direct lighting fixtures refer to lighting fixtures where the light emitted by the light source first shines on the reflector, and after being reflected by the reflector, it is emitted outward, making the emitted light of the fixture more uniform and less dazzling, and having a good anti-glare effect.

[0003] Taking spotlights as an example, spotlights are installed on the ceiling to illuminate specific areas. Depending on the needs of the illuminated area, spotlights can be designed with a rotatable structure. Therefore, spotlights generally include an inner cup and a heat sink. The inner cup is fixed to the ceiling, while the heat sink can rotate relative to the inner cup. In existing spotlight structures, when the heat sink rotates a certain angle relative to the inner cup, the light-cutting opening on the heat sink is located outside the light-cutting opening of the inner cup. Since the light source exits through the light-cutting opening on the heat sink and then shines out through the light-cutting opening on the inner cup, this results in some of the light coming out of the heat sink's light-cutting opening being blocked by the inner cup after the heat sink rotates relative to the inner cup. This prevents that portion of the light from forming an effective light spot, reducing the spotlight's light output and affecting its performance.

[0004] Therefore, it is necessary to improve and optimize existing non-direct lighting fixtures. Utility Model Content

[0005] The present invention aims to solve at least one of the problems of the prior art. To this end, the present invention provides a non-direct light fixture with high light output and better light output.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A non-direct light fixture with high luminous efficiency includes:

[0008] Inner cup, the inner cup having a first light-cutting opening;

[0009] A radiator is hinged to the inner cup, the radiator is rotatable relative to the inner cup, and the radiator has a second light-cutting opening.

[0010] A lamp arm is mounted on the radiator, and a light source is provided at the bottom of the lamp arm;

[0011] A reflector is disposed in the heat sink, and the reflector is located below the light source;

[0012] When the radiator is not rotated relative to the inner cup, the vertical projection of the second light-cutting port is located within the vertical projection of the first light-cutting port.

[0013] When the radiator swings relative to the inner cup to the end of its stroke, the vertical projection of the second light-cutting port is located within the vertical projection of the first light-cutting port.

[0014] Optionally, when the inner cup swings relative to the radiator to the end of its stroke, a portion of the second light-cutting port is located within the first light-cutting port.

[0015] Optionally, the heat sink is provided with a light-emitting hole, the opening of which forms the second light-cutting opening, and the wall of the light-emitting hole is a sloping wall that is larger at the top and smaller at the bottom.

[0016] Optionally, the inner cup has a light-transmitting hole, the lower opening of which forms the first light-cutting opening. The wall of the light-transmitting hole is a sloping wall that is larger at the top and smaller at the bottom. The first light-cutting opening is a sloping opening that gradually increases in height along the rotation direction of the heat sink.

[0017] Optionally, the bottom of the inner cup is provided with several toothed grooves, and the radiator is provided with a pin, the upper end of which is adapted to the toothed grooves, and the lower end of which is connected to a spring.

[0018] Optionally, an outer cup is connected to the inner cup, and the outer cup is rotatably connected to the inner cup.

[0019] Optionally, the light source is positioned below the rim of the reflector cup; or, the light source is positioned flush with the rim of the reflector cup.

[0020] Optionally, the radiator is provided with a dustproof plate, which is located above the lamp arm.

[0021] Optionally, the lamp is a spotlight.

[0022] This utility model has at least one of the following beneficial effects: The embodiments of this utility model fully consider that the heat sink has two states relative to the inner cup: non-rotation and rotation. When the heat sink is not rotated relative to the inner cup, the vertical projection of the second light-cutting port is located within the vertical projection of the first light-cutting port. When the heat sink rotates relative to the inner cup to the end of its stroke, the vertical projection of the second light-cutting port is located within the vertical projection of the first light-cutting port. This ensures that when the heat sink is in two extreme positions relative to the inner cup, the vertical projection of the second light-cutting port is always located within the vertical projection of the first light-cutting port. As a result, the light emitted by the light source, after being reflected by the reflector cup, first passes through the second light-cutting port of the heat sink and then enters the first light-cutting port of the inner cup. This reduces or avoids the light-cutting effect of the first light-cutting port of the inner cup on the light, allowing more light to be emitted, thereby improving the light output rate of the non-direct light fixture. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the lamp in an embodiment of this utility model;

[0024] Figure 2 yes Figure 1 Another perspective illustration;

[0025] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the structure shown;

[0026] Figure 4 yes Figure 3 A schematic diagram of the orthographic projection;

[0027] Figure 5 yes Figure 1 Another cross-sectional view of the structure shown;

[0028] Figure 6 yes Figure 5 A schematic diagram of the orthographic projection;

[0029] Figure 7 This is a three-dimensional structural diagram of the radiator after it has been rotated relative to the inner cup in an embodiment of this utility model;

[0030] Figure 8 yes Figure 7 A cross-sectional schematic diagram of the structure shown;

[0031] Figure 9 yes Figure 7 A schematic diagram of the orthographic projection of the structure shown (the second light-emitting aperture is represented by a dashed line for clearer representation);

[0032] Figures 10-12 This is a three-dimensional structural diagram of the radiator in an embodiment of this utility model;

[0033] Figures 13-14 This is a three-dimensional structural diagram of the inner cup in an embodiment of this utility model.

[0034] Explanation of icon numbers:

[0035] 1-Inner cup, 11-First light-emitting port, 12-Groove, 13-Light-transmitting hole, 2-Heat sink, 21-Second light-emitting port, 22-Light-emitting hole, 23-Sloping wall, 3-Lamp arm, 4-Light source, 5-Reflector cup, 6-Dustproof plate, 7-Pin, 8-Spring, 9-Outer cup, 10-Snap ring. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described below can be arbitrarily combined with each other.

[0037] The following provides many different implementation methods or examples for realizing the structure of this utility model.

[0038] See Figures 1-14 This utility model discloses a non-direct light fixture with high light output. In this embodiment, the light fixture is a spotlight, including an inner cup 1, which has a first light-cutting aperture 11. See details below. Figure 4 As shown, the inner cup 1 has a light-passing hole 13 in the middle, and the first light-cutting port 11 mentioned in this embodiment is the lower opening of the light-passing hole 13; the heat sink 2 is generally made of aluminum to improve heat dissipation efficiency. The heat sink 2 is hinged to the inner cup 1 and can rotate relative to the inner cup 1. The heat sink 2 has a second light-cutting port 21 and a light-emitting hole 22 in the middle. The second light-cutting port 21 mentioned in this embodiment is the upper opening of the light-emitting hole 22; the lamp arm 3 is set on the heat sink 2. In this embodiment, the lamp arm 3 and the heat sink 2 are integrally formed. The bottom of the lamp arm 3 is provided with a light source 4; the reflector cup 5 is set in the heat sink 2. The reflector cup 5 is located below the light source 4. The light emitted by the light source 4 shines on the reflector cup 5, and after being reflected by the reflector cup 5, it is emitted after passing through the second light-cutting port 21 and the first light-cutting port 11. When the radiator 2 is not rotated relative to the inner cup 1, the vertical projection of the second light-cutting aperture 21 is located within the vertical projection of the first light-cutting aperture 11; when the radiator 2 rotates relative to the inner cup 1 to the end of its stroke, the vertical projection of the second light-cutting aperture 21 is located within the vertical projection of the first light-cutting aperture 11. This embodiment of the utility model fully considers that the radiator 2 has two states relative to the inner cup 1: non-rotation and rotation. This ensures that when the radiator 2 is in either of the two extreme positions relative to the inner cup 1, the vertical projection of the second light-cutting aperture 21 is always located within the vertical projection of the first light-cutting aperture 11. Therefore, the light emitted by the light source 4, after being reflected by the reflector cup 5, first passes through the second light-cutting aperture 21 of the radiator 2 and then enters the first light-cutting aperture 11 of the inner cup 1. This reduces or avoids the light-cutting effect of the first light-cutting aperture of the inner cup 1 on the light, allowing more light to escape, thereby improving the light output rate of the non-direct light fixture.

[0039] See details Figure 8 As shown, in some embodiments of this utility model, when the inner cup 1 swings relative to the radiator 2 to the end of its stroke, part of the second light-cutting port 21 is located inside the first light-cutting port 11. This reduces light leakage loss between the first light-cutting port 11 and the second light-cutting port 21, allowing more light from the second light-cutting port 21 to enter the first light-cutting port 11.

[0040] See details Figure 6As shown, in some embodiments of this utility model, the heat sink 2 is provided with a light-emitting hole 22, the opening of the light-emitting hole 22 forms the second light-cutting opening 21, and the hole wall of the light-emitting hole 22 is a sloping wall 23 that is larger at the top and smaller at the bottom. This structure allows light reflected by the reflector cup to be reflected out at a larger angle after hitting the sloping wall 23, so that more light can enter the first light-cutting opening 11 and be emitted, further improving the light extraction rate.

[0041] See details Figure 6 and Figure 8 As shown, in some embodiments of this utility model, the inner cup 1 has a light-transmitting hole 13, the lower opening of the light-transmitting hole 13 forms the first light-cutting opening 11, the hole wall of the light-transmitting hole 13 is a sloping wall that is larger at the top and smaller at the bottom, and the first light-cutting opening 11 is a sloping opening that gradually increases in height along the swing direction of the heat sink 2. Because the hole wall of the light-transmitting hole 13 is a sloping wall, setting the first light-cutting opening 11 as a sloping opening that gradually increases in height along the swing direction of the heat sink 2 makes it possible to achieve the desired effect. Figure 8 The rightmost point A of the beveled opening shown is further to the right than the rightmost point B of the straight opening. This is to accommodate the rightward shift of the second section of the light outlet 21 after the heat sink 2 rotates, thereby ensuring that... Figure 8 In the state shown, the vertical projection of the second light-cutting port 21 is always within the vertical projection of the first light-cutting port 11, so as to reduce the light cut-off of the first light-cutting port 11 and improve the light output efficiency.

[0042] See details Figure 3 as well as Figure 13 As shown, in some embodiments of this utility model, the bottom of the inner cup 1 is provided with several toothed grooves 12, and the radiator 2 is provided with a pin 7. The upper end of the pin 7 is adapted to the toothed groove 12, and the lower end is connected to a spring 8. When the radiator 2 rotates relative to the inner cup 1, the pin 7 can press down on the spring 8 and disengage from the toothed groove. After the rotation angle adjustment is completed, the pin 7 is pressed into the toothed groove 12 under the action of the spring 8 to lock the relative position between the radiator 2 and the inner cup 1. Furthermore, during the rotation process, the pin 7 will make a clicking sound when switching between multiple toothed grooves 12, which improves the feel of the lamp operation.

[0043] See details Figure 3 As shown, in some embodiments of this utility model, the inner cup 1 is externally connected to an outer cup 9, and the outer cup 9 is rotatably connected to the inner cup 1. A retaining spring 10 is provided on the outer cup 9, and the outer cup 9 is fixed to the ceiling by the retaining spring 10. The inner cup 1 can rotate relative to the outer cup 9. Combined with the fact that the radiator 2 can swing relative to the inner cup 1, the light emitted by the lamp can be freely adjusted to the desired position.

[0044] In existing technology, the light source (LED) is conventionally positioned above the rim of the reflector. This creates a gap between the light source and the rim, causing some of the light emitted by the light source to spill out through this gap and enter the heat sink. This excess light is difficult to emit and form a light spot, resulting in a loss of luminous efficiency. For details, please refer to... Figure 4 As shown, in some embodiments of this invention, the light source 4 is positioned below the rim of the reflector 5; in other embodiments, the light source 4 is positioned flush with the rim of the reflector 5. Almost all the light emitted by the light source 4 hits the reflector 5 and is reflected, further improving the light extraction efficiency.

[0045] See details Figure 4 As shown, in some embodiments of this utility model, a dustproof plate 6 is provided in the radiator 2, and the dustproof plate 6 is located above the lamp arm 3. The dustproof plate 6 prevents dust and other particles from entering and adhering to the reflector cup 5, ensuring the cleanliness and smoothness of the reflector cup 5 wall, thus maintaining its good reflective properties at all times.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A non-direct-light lamp with high light output, characterized in that, include: Inner cup, the inner cup having a first light-cutting opening; A radiator is hinged to the inner cup, the radiator is rotatable relative to the inner cup, and the radiator has a second light-cutting opening. A lamp arm is mounted on the radiator, and a light source is provided at the bottom of the lamp arm; A reflector is disposed in the heat sink, and the reflector is located below the light source; When the radiator is not rotated relative to the inner cup, the vertical projection of the second light-cutting port is located within the vertical projection of the first light-cutting port. When the radiator swings relative to the inner cup to the end of its stroke, the vertical projection of the second light-cutting port is located within the vertical projection of the first light-cutting port.

2. A non-direct light fixture with high light output according to claim 1, characterized in that: When the inner cup swings relative to the radiator to the end of its stroke, part of the second light-cutting port is located inside the first light-cutting port.

3. A non-direct light fixture with high light output according to claim 1, characterized in that: The heat sink is provided with a light-emitting hole, the opening of which forms the second light-cutting opening, and the wall of the light-emitting hole is a sloping wall that is larger at the top and smaller at the bottom.

4. A non-direct light fixture with high light output according to claim 1, characterized in that: The inner cup has a light-transmitting hole, and the lower opening of the light-transmitting hole forms the first light-cutting opening. The wall of the light-transmitting hole is a sloping wall that is larger at the top and smaller at the bottom. The first light-cutting opening is a sloping opening that gradually increases in height along the direction of the radiator's rotation.

5. A non-direct light fixture with high light output according to claim 1, characterized in that: The bottom of the inner cup is provided with several toothed grooves, and the radiator is provided with a pin. The upper end of the pin is adapted to the toothed grooves, and the lower end is connected to a spring.

6. A non-direct light fixture with high light output according to claim 1, characterized in that: The inner cup is connected to an outer cup, which is rotatably connected to the inner cup.

7. A non-direct light fixture with high light output according to any one of claims 1-6, characterized in that: The light source is positioned below the rim of the reflector cup; or, the light source is positioned flush with the rim of the reflector cup.

8. A non-direct light fixture with high light output according to any one of claims 1-6, characterized in that: The radiator is equipped with a dustproof plate, which is located above the lamp arm.

9. A non-direct light fixture with high light output according to claim 1, characterized in that: The lamp is a spotlight.

Images