Projection lamp
The projection lamp design addresses dust exposure and gap control issues by using a protected lamp bead structure with a groove and inclined surfaces, ensuring dust prevention and extended lamp bead life while maintaining uniform light projection.
Patent Information
- Application Number
- CN202420500625.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-14
AI Technical Summary
Existing projection lamps expose the light assembly during film replacement, leading to dust accumulation and uncontrollable gaps, which compromises dust prevention and lamp longevity.
A projection lamp design featuring a fixing seat with a receiving cavity, an upper cover with through slots, and a motor assembly that drives a projection assembly, incorporating lamp beads protected by a groove structure with inclined light-guiding surfaces and a projection assembly with a fixing frame to prevent dust exposure and maintain a controlled gap.
Prevents dust accumulation on lamp beads, extends their lifespan, and ensures uniform light projection by shielding the lamp beads and maintaining a controlled gap, enhancing dust prevention and longevity.
Smart Images
Figure CN222299924U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of projection lamps, in particular to a projection lamp with a lamp bead dustproof structure. [Background technology]
[0002] An existing projection lamp includes a fixed seat, a rotating seat mounted on the fixed seat, a driving assembly and a lighting assembly, a projection assembly mounted on the rotating seat, and an upper cover covering the projection assembly. The fixed seat includes a groove recessed downward from its top surface, the rotating seat is mounted in the groove, the driving assembly includes a protrusion extending into the groove and cooperating with the rotating seat, and the rotating seat drives the projection assembly to rotate. Alternatively, the driving assembly drives the projection assembly. The rotating seat includes a through hole penetrating upward, and the lighting assembly is fixed to the fixed seat and exposed upward from the through hole.
[0003] Due to the above structure, when the operator replaces the projection film of the projection assembly, the entire light assembly will be exposed outward, which is not conducive to dust prevention of the light assembly. In addition, the gap between the projection assembly and the light assembly in the vertical direction cannot be controlled. [Contents of the utility model]
[0004] In view of the problems faced by the background technology, the utility model provides a projection lamp which prevents a projection component from colliding with a lamp bead when rotating.
[0005] In order to achieve the above purpose, the utility model adopts the following technical means:
[0006] A projection lamp comprises: a fixing seat, comprising a receiving cavity and a base and an upper cover constituting the receiving cavity, the upper cover comprising at least one through slot penetrating upward, the through slot being connected to the receiving cavity in vertical communication; a light source assembly fixedly connected to the base, the light source assembly comprising a substrate and at least one lamp bead fixed to the substrate, the substrate being received in the receiving cavity, the lamp bead exposing the through slot upward; a projection assembly, located above the lamp bead, the light emitted by the lamp bead passing through the projection assembly to be projected outward.
[0007] Furthermore, the upper cover includes a through hole, a plurality of through grooves are arranged around the through hole, the through hole is connected to the receiving cavity in upper and lower directions, and the projection lamp includes a motor assembly passing through the through hole, and the motor assembly drives the projection assembly to rotate.
[0008] Furthermore, the fixing seat includes a groove formed downward from the top surface thereof, a plurality of through grooves penetrate upward through the bottom wall of the groove, and the lamp beads are at least partially arranged above the bottom surface of the groove.
[0009] Furthermore, a gap is formed between the projection assembly and the lamp beads in the up and down directions.
[0010] Furthermore, the width of the projection assembly is set larger than the width of the groove.
[0011] Furthermore, the motor assembly includes a motor shaft or a gear protruding out of the through hole, and the projection assembly includes a fixing frame and a projection sheet arranged on the fixing frame, and the fixing frame is fixed to the motor shaft or the gear cooperates with the inner gear ring of the fixing frame.
[0012] Furthermore, the fixed seat includes a groove formed downward from its top surface, the fixed frame includes a fixing portion and a supporting portion and a first projection portion connected to the fixing portion, the motor shaft is fixed to the fixing portion, the supporting portion is accommodated in the groove, and the projection film is at least arranged on the first projection portion.
[0013] Furthermore, the fixing seat includes a groove formed downwardly, the through groove is connected to the groove up and down, the lamp bead is exposed upward in the groove, the side wall of the groove is configured as an inclined light-guiding surface, and the projection assembly is located above the groove and its width is greater than the groove setting.
[0014] Furthermore, the fixing seat includes a sink groove arranged around the groove, the projection assembly is at least partially received in the sink groove, the light guiding surface is connected to the bottom surface of the sink groove, and the light emitted by the lamp bead reaches the periphery of the projection assembly along the light guiding surface.
[0015] Further, the projection assembly includes a fixed frame and a projection film arranged on the fixed frame, the fixed frame includes a fixed part, a supporting part extending upward from the fixed part, and a first projection part arranged around the supporting part, the supporting part fills the gap between the first projection part and the fixed part, or there is a gap between the supporting part and the first projection part or the fixed part, the motor shaft is fixed to the fixed part, and at least part of the projection film is arranged on the first projection part.
[0016] Compared with the prior art, the projection lamp of the utility model has the following beneficial effects:
[0017] The fixing seat includes a receiving cavity and a base and an upper cover constituting the receiving cavity, the upper cover includes at least one through groove penetrating upward, and the through groove is connected to the receiving cavity in upper and lower directions; a light source assembly is fixedly connected to the base, the light source assembly includes a substrate and at least one lamp bead fixed to the substrate, the substrate is received in the receiving cavity, and the lamp bead exposes the through groove upward; a projection assembly is located above the lamp bead, and the light emitted by the lamp bead passes through the projection assembly and is projected outward, thereby preventing the lamp bead from dust and extending the life of the lamp bead.
Brief Description of the Drawings
[0018] Figure 1 It is a three-dimensional diagram of the projection lamp of the utility model;
[0019] Figure 2 for Figure 1 Front view after removing the top cover;
[0020] Figure 3 for Figure 2 A top view of
[0021] Figure 4 for Figure 3 Sectional view along the AA section line;
[0022] Figure 5 for Figure 4 A partial enlarged view of middle b;
[0023] Figure 6 for Figure 2 3D exploded view of
[0024] Figure 7 for Figure 6 A three-dimensional exploded view of the middle fixing seat;
[0025] Figure 8 for Figure 6 Exploded perspective view of the projection component.
[0026] Description of the accompanying drawings of the specific embodiments:
[0027] Projector lamp 100 Fixed seat 1 Base 11 Fixed plate 111 Limit hole 1111 Limiting part 1112 Card position 1113 Upper cover 12 Groove 121 Through hole 122 Through slot 123 Sink 124 Mounting holes 125 Light guide surface 126 Buckle 127 Projection 128 Accommodation chamber 13 Motor assembly 2 Body 21 Motor shaft 22 Fixed ear 23 Light source component 3 Substrate 31 Lamp beads 32 Projection component 4 Fixed frame 41 Fixed portion 411 Supporting portion 412 First projection unit 413 Limit block 4131 Second projection unit 414 Base 41414141 Crimping part 41424142 Slide 42 First Film 421 Second Film 422 Top cover 5 [Specific implementation method]
[0028] In order to facilitate a better understanding of the purpose, structure, characteristics and functions of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.
[0029] like Figures 1 to 8 As shown, the projection lamp 100 of the present invention comprises a fixing base 1, a motor assembly 2 mounted on the fixing base 1, a projection assembly 4 matched with the motor assembly 2, and a top cover 5 covering the projection assembly 4.
[0030] like Figure 1 , Figure 6 and Figure 7As shown, the projection lamp 100 includes a fixing base 1 and an upper cover 12 rotatably buckled with the fixing base 1. The fixing base 1 includes a receiving cavity 13, a base 11 forming the receiving cavity 13, and an upper cover 12. The base 11 includes a shell and a fixing plate 111 installed on the shell. The front and rear ends of the fixing plate 111 are fixed to the fixing column of the shell. The fixing plate 111 includes a through-limiting hole 1111, a limiting portion 1112 located at the front and rear sides of the limiting hole 1111, and a clamping position 1113 located on the right side of the limiting hole 1111. The base 11 includes a battery fixed to the clamping position 1113. The upper cover 12 includes a groove 121 formed downward from the top surface thereof, a through hole 122 penetrating upward through the bottom wall of the groove 121, and a plurality of through grooves 123 arranged around the through hole 122. The side wall of the groove 121 is arranged as a light guiding surface 126, and the light guiding surface 126 is an inclined surface. The through hole 122 and the through groove 123 are both connected to the receiving cavity 13. The upper cover 12 further includes a recessed groove 124 formed downward from the top surface thereof and a plurality of mounting holes 125 penetrating upward through the bottom wall of the recessed groove 124. The recessed groove 124 is arranged around the groove 121. The light guide surface 126 is connected to the bottom surface of the recessed groove 124 upward, and is connected to the bottom surface of the groove 121 downward. The bottom surface of the recessed groove 124 is arranged higher than the bottom surface of the groove 121. The upper cover 12 is fixed to the base 11 by screws passing through the mounting holes 125. The upper cover 12 also includes a plurality of card slots formed on its outer edge and a buckling portion 127 and a protrusion 128 extending from the side wall of each of the card slots.
[0031] like Figure 4 , Figure 5 and Figure 6As shown, the motor assembly 2 includes a body 21, fixing ears 23 located on the left and right sides of the body 21, and a motor shaft 22 extending upward from the body 21. The body 21 is installed in the limiting hole 1111, and the two fixing ears 23 are fixed to the limiting part 1112 in a one-to-one correspondence. The width of the through hole 122 is less than half the width of the body 21. The motor shaft 22 is arranged higher than the bottom surface of the groove 121. The light source assembly 3 is accommodated in the accommodating cavity 13. The light source assembly 3 includes a substrate 31 and a plurality of lamp beads 32 installed on the substrate 31. The substrate 31 is fixedly connected to the base 11, and each of the lamp beads 32 is aligned with one of the through grooves 123 in the upper and lower directions. The width of the through groove 123 is greater than the width of the lamp bead 32 and less than 3 times the width of the lamp bead. The plurality of lamp beads 32 are arranged around the motor shaft 22 or the gear. In this embodiment, the lamp bead 32 protrudes upward into the through groove 123, and the highest point of the lamp bead 32 is flush with the bottom surface of the groove 121 or higher than the bottom wall of the groove 121, or the lamp bead 32 is at least partially higher than the bottom surface of the groove 121. The light emitted by the lamp bead 32 is diffused outwardly to the sink 124 along the light guide surface 126, so that the illumination area is more uniform.
[0032] like Figure 4 , Figure 5 and Figure 8As shown, the projection assembly 4 includes a fixing frame 41 and a projection sheet 42 mounted on the fixing frame 41. The fixing frame 41 includes a fixing portion 411, a supporting portion 412 connected to the fixing portion 411, a first projection portion 413 and a second projection portion 414, wherein the first projection portion 413 is formed by extending upward from the supporting portion 412 or the first projection portion 413 is buckled with the supporting portion, the first projection portion 413 is arranged around the supporting portion 412, and the second projection portion 414 is covered on the first projection portion 413. The fixing portion 411 includes a fixing hole that passes through the supporting portion 412 upward, the motor shaft 22 protrudes upward into the fixing hole, a screw passes through the supporting portion 412 to fix the fixing portion 411 to the motor shaft 22, or the fixing hole is provided with an inner gear ring to cooperate with the gear of the motor assembly 2. The first projection part 413 is aligned with the plurality of mounting holes 125 in the vertical direction, that is, the outer edge of the projection assembly 4 is aligned with the plurality of mounting holes 125 in the vertical direction, shielding the plurality of mounting holes 125 from being exposed, and playing a dust-proof role. The first projection part 413 includes a matching part and a plurality of spaced limit blocks 4131 extending from the matching part. The width of the projection assembly 4 is greater than the width of the groove 121, or the width of the support part 412 is greater than the width of the groove 121. The support part 412 forms a gap with the plurality of lamp beads 32 in the vertical direction, and the gap between the support part 412 and the bottom surface of the groove 121 in the vertical direction is greater than the gap between the support part 412 and the bottom surface of the sink 124 in the vertical direction. In this embodiment, the support part 412 seals the gap between the first projection part 413 and the fixing part 411, or the support part 412 is a structure of multiple support rods, and a hollow structure is formed between two adjacent support rods. One end of the support rod is connected to the fixing portion 411, and the other end is connected to the first projection portion 413. The thickness of the support portion 412 is 0.5 mm to 5 mm. The light emitted by the lamp bead 32 passes through the support portion 412 and reaches the projection film 42. The second projection portion 414 is covered on the first projection portion 413, and the second projection portion 414 includes a base 4141 and a crimping portion 4142 extending from the base 4141 in a horizontal direction. The base 4141 is arranged around the matching portion, and the matching portion is matched with a plurality of the limit blocks 4131, and the crimping portion 4142 is located above the matching portion. Of course, in other embodiments, a plurality of the limit blocks 4131 can be arranged on the base 4141. The projection sheet 42 includes a first film 421 and a second film 422 . The first film 421 is disposed along the first projection portion 413 , and the second film 422 is disposed on the second projection portion 414 . The pressing portion 4142 limits the second film 422 from moving upward.
[0033] like Figure 1 As shown, the top cover 5 includes a locking portion and a recessed portion formed on the locking portion. The locking portion is rotatably engaged with the engaging portion 127 , and the recessed portion cooperates with the convex portion 128 to limit excessive rotation of the top cover 5 .
[0034] In summary, the projection lamp of the utility model has the following beneficial effects:
[0035] (1) The fixing seat includes a receiving cavity and a base and an upper cover constituting the receiving cavity, wherein the upper cover includes at least one through groove extending upwardly, and the through groove is connected to the receiving cavity from top to bottom; a light source assembly is fixedly connected to the base, and the light source assembly includes a substrate and at least one lamp bead fixed to the substrate, the substrate is received in the receiving cavity, and the lamp bead exposes the through groove upward; a projection assembly is located above the lamp bead, and the light emitted by the lamp bead passes through the projection assembly and is projected outward, thereby preventing the lamp bead from dust and extending the life of the lamp bead.
[0036] The above detailed description is only an explanation of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.
Claims
1. A projection lamp, characterized in that: include: A fixing seat, comprising a receiving cavity and a base and an upper cover constituting the receiving cavity, wherein the upper cover comprises at least one through slot penetrating upward, and the through slot is connected with the receiving cavity in an upper and lower manner; A light source assembly is fixedly connected to the base, the light source assembly comprises a substrate and at least one lamp bead fixed to the substrate, the substrate is received in the receiving cavity, and the lamp bead exposes the through slot upwards; The projection assembly is located above the lamp beads, and the light emitted by the lamp beads passes through the projection assembly and is projected outward.
2. The projection lamp as claimed in claim 1, characterized in that: The upper cover includes a through hole, a plurality of through slots are arranged around the through hole, the through hole is connected with the receiving cavity up and down, the projection lamp includes a motor assembly passing through the through hole, and the motor assembly drives the projection assembly to rotate.
3. The projection lamp as claimed in claim 2, characterized in that: The fixing seat includes a groove formed downward from the top surface thereof, a plurality of through grooves penetrate upward through the bottom wall of the groove, and the lamp beads are at least partially arranged above the bottom surface of the groove.
4. The projection lamp as claimed in claim 3, characterized in that: The projection assembly and the lamp beads form a gap in the up and down directions.
5. The projection lamp as claimed in claim 4, characterized in that: The width of the projection assembly is set larger than the width of the groove.
6. The projection lamp as claimed in claim 2, characterized in that: The motor assembly includes a motor shaft or a gear protruding out of the through hole, and the projection assembly includes a fixing frame and a projection sheet arranged on the fixing frame. The fixing frame is fixed to the motor shaft or the gear cooperates with the inner gear ring of the fixing frame.
7. The projection lamp as claimed in claim 6, characterized in that: The fixed seat includes a groove formed downward from its top surface, the fixed frame includes a fixing portion, a supporting portion connected to the fixing portion, and a first projection portion, the motor shaft is fixed to the fixing portion, the supporting portion is accommodated in the groove, and the projection film is at least arranged on the first projection portion.
8. The projection lamp according to any one of claims 2 to 7, characterized in that: The fixing seat includes a groove formed downward, the through groove is connected to the groove up and down, the lamp bead is exposed upward in the groove, the side wall of the groove is configured as an inclined light guiding surface, and the projection assembly is located above the groove and its width is greater than the groove setting.
9. The projection lamp as claimed in claim 8, characterized in that: The fixing seat includes a sink groove arranged around the groove, the projection assembly is at least partially received in the sink groove, the light guide surface is connected to the bottom surface of the sink groove, and the light emitted by the lamp beads reaches the periphery of the projection assembly along the light guide surface.
10. The projection lamp according to any one of claims 6 to 7, characterized in that: The fixing frame includes a fixing portion, a supporting portion extending upward from the fixing portion, and a first projection portion arranged around the supporting portion, the supporting portion covers a gap between the first projection portion and the fixing portion, or there is a gap between the supporting portion and the first projection portion or the fixing portion, and at least part of the projection film is arranged on the first projection portion.