Projection lamp
By using a lens plate and elastic sealing sheet in the floodlight design, the problem of sealing ring failure is solved, achieving long-term effective sealing and ensuring good lighting effect and durability.
Patent Information
- Application Number
- CN202520517778.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The sealing rings of existing floodlights are prone to failure, allowing moisture and dust to enter and affecting the lighting effect.
An elastic sealing sheet is used between the lampshade lens plate and the light source plate. It is connected to the protrusion through the first through hole. The lens plate is used to press the elastic sealing sheet tightly against the light source plate to achieve long-distance sealing and prevent water vapor and dust from entering.
It improves the sealing effect, prevents moisture and dust from entering, maintains long-term lighting performance, and enhances durability and lighting quality.
Smart Images
Figure CN223795235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting technology, and in particular to a floodlight. Background Technology
[0002] Floodlights are generally used outdoors and offer strong illumination. They can be used as streetlights. When the light is projected from a height, the ambient brightness is high, the light coverage is large, and the lighting quality and visual effect are excellent. In existing technology, floodlights have a certain degree of sealing performance, usually achieved by setting a sealing ring. However, after long-term use, the sealing ring is prone to failure, and moisture and dust can easily enter between the lamp cover and the light source board, thus affecting the lighting effect. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a floodlight that can solve the problem of easy failure of the sealing effect.
[0004] A floodlight according to a first aspect of the present invention includes: a lamp housing, a light source plate, a lamp shade, and an elastic sealing sheet. The lamp housing has a mounting groove, the light source plate is disposed in the mounting groove, the light source plate has a plurality of LEDs, the lamp shade is connected to the lamp housing and closes the opening of the mounting groove, the lamp shade has a lens plate, the lens plate has a plurality of protrusions, the protrusions are arranged opposite to the LEDs, the elastic sealing sheet is disposed between the lamp shade and the light source plate, and the lens plate presses the elastic sealing sheet against the light source plate, the elastic sealing sheet has a plurality of first through holes, the first through holes connecting the LEDs to the protrusions one by one.
[0005] The floodlight according to the embodiment of this utility model has at least the following beneficial effects: the lens plate of the lampshade can press the elastic sealing sheet tightly against the light source plate, and the lamp beads of the light source plate emit the irradiated light through the first through hole after being refracted by the protrusion, resulting in good lighting effect. Furthermore, the cavity between the lamp beads and the protrusion can be sealed by the elastic sealing sheet. Since the sealing distance of the elastic sealing sheet is long and the sealing range is large, the floodlight is not prone to sealing failure even after long-term use. The cavity between the protrusion and the lamp beads is not prone to moisture and dust entering, and is not likely to affect the lighting effect.
[0006] According to some embodiments of the present invention, the protrusion is hemispherical, and a hemispherical light-emitting cavity is provided between the protrusion and the light source plate.
[0007] According to some embodiments of this utility model, the elastic sealing sheet is made of silicone or rubber.
[0008] According to some embodiments of the present invention, the elastic sealing sheet is hot-pressed onto the side of the lampshade near the light source plate.
[0009] According to some embodiments of the present invention, the lampshade has a first groove, and the bottom wall of the first groove is configured as the lens plate.
[0010] According to some embodiments of the present invention, the lampshade has an annular groove on the side near the light source plate, the annular groove surrounds the first groove, a sealing ring is installed in the annular groove, and the lampshade presses the sealing ring tightly against the lamp housing.
[0011] According to some embodiments of the present invention, the lampshade is provided with a plurality of first connecting holes, the first connecting holes being located outside the annular groove, the mounting groove being provided with a plurality of second connecting holes and an annular protrusion bracket, the second connecting holes being located outside the annular protrusion bracket, the annular protrusion bracket abutting against the sealing ring, the first connecting holes and the second connecting holes corresponding one-to-one, so that fasteners can fix the lampshade to the lamp housing.
[0012] According to some embodiments of the present invention, the lamp housing is provided with multiple heat dissipation strips, some of which are provided with connecting bosses. The connecting bosses have threaded grooves that communicate with the bottom wall of the mounting groove. The light source plate is provided with multiple third connecting holes, which correspond one-to-one with the threaded grooves, so that fasteners can fix the light source plate to the bottom wall of the mounting groove.
[0013] According to some embodiments of the present invention, a receiving groove for mounting a driving power supply is provided between the lampshade and the lamp housing.
[0014] According to some embodiments of this utility model, the lamp housing is made of metal.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The above or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0017] Figure 1 This is a general schematic diagram of an embodiment of the present utility model;
[0018] Figure 2 for Figure 1 A schematic diagram of the structure from another direction;
[0019] Figure 3 for Figure 1 Exploded view of the structure;
[0020] Figure 4 for Figure 1 A sectional view of the structure;
[0021] Figure 5 for Figure 1 A sectional view of the structure;
[0022] Figure 6 for Figure 4 A magnified view of a section at point A in the middle;
[0023] Figure 7 for Figure 4 A magnified view of a section at point B in the middle.
[0024] Figure label:
[0025] Lamp housing 100, mounting groove 110, second connecting hole 111, annular protrusion bracket 112, heat sink 120, connecting boss 121, threaded groove 1211, receiving groove 130;
[0026] Light source board 200, LED beads 210, third connecting hole 220;
[0027] Lamp cover 300, lens plate 310, protrusion 320, first groove 330, annular groove 340, first connecting hole 350;
[0028] Elastic sealing sheet 400, first through hole 410;
[0029] 500 sealing ring. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Reference Figures 1 to 3 According to a first aspect of the present invention, a floodlight includes a lamp housing 100, a light source plate 200, a lamp shade 300, and an elastic sealing sheet 400. The lamp housing 100 has a mounting groove 110, the light source plate 200 is disposed in the mounting groove 110, the light source plate 200 has a plurality of lamp beads 210, the lamp shade 300 is connected to the lamp housing 100 and closes the opening of the mounting groove 110, the lamp shade 300 has a lens plate 310, the lens plate 310 has a plurality of protrusions 320, the protrusions 320 and the lamp beads 210 are arranged opposite to each other, the elastic sealing sheet 400 is disposed between the lamp shade 300 and the light source plate 200, and the lens plate 310 presses the elastic sealing sheet 400 against the light source plate 200, the elastic sealing sheet 400 has a plurality of first through holes 410, the first through holes 410 connect the lamp beads 210 and the protrusions 320 one by one. The lens plate 310 of the lampshade 300 can press the elastic sealing sheet 400 tightly against the light source plate 200. The lamp beads 210 of the light source plate 200 emit the irradiated light through the first through hole 410 after being refracted by the protrusion 320, resulting in good lighting effect. Furthermore, the cavity between the lamp beads 210 and the protrusion 320 can be sealed by the elastic sealing sheet 400. Due to the long sealing distance and large sealing range of the elastic sealing sheet 400, the floodlight is not prone to sealing failure even after long-term use. The cavity between the protrusion 320 and the lamp beads 210 is not prone to moisture and dust entering, thus not affecting the lighting effect.
[0034] Specifically, the light source board 200 is fixedly connected to the mounting groove 110. Multiple LED beads 210 can be mounted on the light source board 200, and these beads can be evenly arrayed on the light source board 200. The lampshade 300 is installed on the lamp housing 100 together with the elastic sealing sheet 400. The elastic sealing sheet 400 can cover the lens plate 310. After the lampshade 300 is fixedly connected to the lamp housing 100, the elastic sealing sheet 400 can seal between the lampshade 300 and the light source board 200. Furthermore, the elastic sealing sheet 400 is deformable, preventing damage to the light source board 200 from pressure. Compared to conventional methods, this provides a more efficient and reliable solution. Regarding the technical solution of setting a sealing ring 500 at the edge of the cover 300 and the lamp housing 100, the use of an elastic sealing sheet 400 can expand the sealing distance and will not fail to seal even after long-term use. The protrusion 320 on the lens plate 310 can evenly refract the light from the lamp bead 210, which can improve the lighting effect. Therefore, the first through hole 410 can allow light to be emitted. At the same time, under the seal of the elastic sealing sheet 400, it is difficult for moisture and dust to enter the space between the protrusion 320 and the lamp bead 210. Therefore, the lighting effect will not be affected even after long-term use, and the durability is strong.
[0035] Reference Figures 1 to 6 In some embodiments of this utility model, the protrusion 320 is hemispherical, and a hemispherical light-emitting cavity is formed between the protrusion 320 and the light source plate 200. Specifically, the lampshade 300 can be injection molded, and the hemispherical protrusion 320 can form a hemispherical light-emitting cavity, allowing light to be refracted through the hemispherical lampshade 300, thereby improving the lighting effect. Meanwhile, the first through hole 410 of the elastic sealing sheet 400 can be circular, simplifying the opening and facilitating manufacturing.
[0036] In some embodiments of this invention, the elastic sealing sheet 400 is made of silicone or rubber. It provides good sealing performance, and its elasticity also protects the light source plate 200.
[0037] Reference Figures 1 to 6 In some embodiments of this utility model, the elastic sealing sheet 400 is hot-pressed onto the side of the lampshade 300 near the light source plate 200. Specifically, the elastic sealing sheet 400 can be directly pressed onto the lampshade 300 by hot pressing. During assembly, the lampshade 300 only needs to be installed on the lamp housing 100, and the elastic sealing sheet 400 can be sealed in place, which is convenient for assembly. It can be understood that the elastic sealing sheet 400 can be made of SBS material, which has good thermoplasticity and is easy to hot press.
[0038] Reference Figures 1 to 5In some embodiments of this utility model, the lampshade 300 has a first groove 330, and the bottom wall of the first groove 330 is a lens plate 310. Specifically, the bottom wall of the first groove 330 is a light-emitting lens plate 310. By setting the first groove 330, glare can be prevented. After the lens plate 310 emits light, it can be blocked by the first groove 330, thereby achieving the effect of preventing glare. In addition, the first groove 330 also allows the lens plate 310 to extend toward the light source plate 200, so as to press the elastic sealing member tightly against the light source plate 200 to achieve a seal.
[0039] Reference Figure 4 and Figure 7 In some embodiments of this utility model, the lampshade 300 has an annular groove 340 on the side near the light source plate 200. The annular groove 340 surrounds the first groove 330, and a sealing ring 500 is installed in the annular groove 340. The lampshade 300 presses the sealing ring 500 against the lamp housing 100. Specifically, the annular groove 340 can surround the light source plate 200 and electrical components. The sealing ring 500 can be assembled in the annular groove 340 to facilitate the positioning and assembly of the sealing ring 500. After assembly, the sealing ring 500 can abut against the lamp housing 100, thereby sealing and protecting the internal electrical components. It can form a double seal with the elastic sealing sheet 400, which can further improve the sealing performance.
[0040] Reference Figure 1 and Figure 3 In some embodiments of this utility model, the lampshade 300 is provided with a plurality of first connecting holes 350, the first connecting holes 350 being located outside the annular groove 340, the mounting groove 110 is provided with a plurality of second connecting holes 111 and an annular protrusion 112, the second connecting holes 111 being located outside the annular protrusion 112, the annular protrusion 112 abutting against the sealing ring 500, the first connecting holes 350 and the second connecting holes 111 corresponding one-to-one, so that fasteners can fix the lampshade 300 to the lamp housing 100. Specifically, the first connecting hole 350 can be set at intervals around the outline of the lamp cover 300. Correspondingly, the mounting groove 110 is equipped with a corresponding second connecting hole 111, and the annular protrusion 112 corresponds to the annular groove 340. When the lamp cover 300 is assembled on the lamp housing 100, the first connecting hole 350 and the second connecting hole 111 correspond and are connected by bolts. The annular protrusion 112 can abut against the sealing ring 500. As the bolts are tightened, the annular protrusion 112 can further press the sealing ring 500. The first connecting hole 350 and the second connecting hole 111 are located on the outside of the annular protrusion 112 and the sealing ring 500. When the fasteners are tightened, the annular protrusion 112 can form a flipping torque, which increases the force of the annular protrusion 112 on the sealing ring 500, thereby further improving the sealing performance. Moreover, sealing can be achieved at the same time as assembling the lamp cover 300.
[0041] Reference Figure 2 and Figure 5 In some embodiments of this utility model, the lamp housing 100 is provided with a plurality of heat dissipation strips 120, some of which are provided with connecting bosses 121. The connecting bosses 121 have threaded grooves 1211 that communicate with the bottom wall of the mounting groove 110. The light source plate 200 is provided with a plurality of third connecting holes 220, which correspond one-to-one with the threaded grooves 1211, so that fasteners can fix the light source plate 200 to the bottom wall of the mounting groove 110. Specifically, heat sinks 120 can be arranged at intervals on the back of the lamp housing 100. The raised heat sinks 120 can expand the heat dissipation area and improve the heat dissipation effect. Connecting bosses 121 can be injection molded or cast on the heat sinks 120 to reduce manufacturing processes. The side of the connecting bosses 121 near the mounting groove 110 can be provided with threaded grooves 1211. When the light source board 200 is assembled in the mounting groove 110, the third connecting hole 220 can correspond one-to-one with the threaded grooves 1211. Bolts can be used to thread the light source board 200 to the mounting groove 110, thereby fixing the light source board 200 to the mounting groove 110. This makes the connection between the light source board 200 and the lamp housing 100 more stable, eliminating the need for adhesive bonding. When heated, the light source board 200 is less likely to fall off. Furthermore, the connecting bosses 121 can be formed together with the heat sinks 120, which can save production costs.
[0042] Reference Figure 4 and Figure 5 In some embodiments of this utility model, a receiving groove 130 for mounting a driving power supply is provided between the lampshade 300 and the lamp housing 100. Specifically, the first groove 330 can be offset on the lampshade 300, so that the receiving groove 130 can be avoided between the other side of the offset direction of the first groove 330 and the lamp housing 100. The receiving groove 130 can accommodate the mounting of the driving power supply, thereby making the structure of the floodlight more compact.
[0043] In some embodiments of this invention, the lamp housing 100 is made of metal. A metal lamp housing 100 has higher heat transfer efficiency, thereby improving heat dissipation.
[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A floodlight, characterized in that, include: The lamp housing (100) has a mounting groove (110); A light source board (200) is disposed in the mounting groove (110), and the light source board (200) has a plurality of lamp beads (210); The lampshade (300) is connected to the lamp housing (100) and closes the opening of the mounting groove (110). The lampshade (300) has a lens plate (310). The lens plate (310) is provided with a plurality of protrusions (320). The protrusions (320) are arranged opposite to the lamp beads (210). An elastic sealing sheet (400) is disposed between the lampshade (300) and the light source plate (200), and the lens plate (310) presses the elastic sealing sheet (400) against the light source plate (200). The elastic sealing sheet (400) is provided with a plurality of first through holes (410), and the first through holes (410) connect the lamp beads (210) and the protrusions (320) one by one.
2. The floodlight according to claim 1, characterized in that, The protrusion (320) is hemispherical, and there is a hemispherical light-emitting cavity between the protrusion (320) and the light source plate (200).
3. The floodlight according to claim 1, characterized in that, The elastic sealing sheet (400) is made of silicone or rubber.
4. The floodlight according to claim 3, characterized in that, The elastic sealing sheet (400) is hot-pressed onto the side of the lampshade (300) near the light source plate (200).
5. The floodlight according to claim 1, characterized in that, The lampshade (300) has a first groove (330), and the bottom wall of the first groove (330) is set as the lens plate (310).
6. The floodlight according to claim 5, characterized in that, The lampshade (300) has an annular groove (340) on the side near the light source plate (200). The annular groove (340) surrounds the first groove (330). A sealing ring (500) is installed in the annular groove (340). The lampshade (300) presses the sealing ring (500) against the lamp housing (100).
7. The floodlight according to claim 6, characterized in that, The lampshade (300) is provided with a plurality of first connecting holes (350), the first connecting holes (350) being located outside the annular groove (340). The mounting groove (110) is provided with a plurality of second connecting holes (111) and an annular protrusion (112), the second connecting holes (111) being located outside the annular protrusion (112), the annular protrusion (112) abutting against the sealing ring (500). The first connecting holes (350) and the second connecting holes (111) correspond one-to-one, so that fasteners can fix the lampshade (300) to the lamp housing (100).
8. The floodlight according to claim 1, characterized in that, The lamp housing (100) is provided with a plurality of heat dissipation strips (120), some of which are provided with connecting bosses (121). The connecting bosses (121) have threaded grooves (1211) that communicate with the bottom wall of the mounting groove (110). The light source plate (200) is provided with a plurality of third connecting holes (220), which correspond one-to-one with the threaded grooves (1211) so that fasteners can fix the light source plate (200) to the bottom wall of the mounting groove (110).
9. The floodlight according to claim 1, characterized in that, The lampshade (300) and the lamp housing (100) have a receiving groove (130) for mounting the driving power supply.
10. The floodlight according to claim 1, characterized in that, The lamp housing (100) is made of metal.