Projection device

Abstract

The utility model discloses a projection device, which comprises a fixed seat, at least one projection module, at least one projection module and a control module, the fixed seat comprises a groove formed downwards and at least one through groove communicated with the groove up and down, and the through groove upwards penetrates through the bottom wall of the groove; the light source assembly is fixed to the fixing base and comprises a substrate and at least one lamp bead fixed to the substrate, the substrate is contained in the containing cavity of the fixing base, and the lamp beads are upwards exposed out of the through groove; the projection assembly is located above the groove, and a gap is formed between the projection assembly and the lamp bead in the vertical direction; the motor assembly is installed on the fixing base and drives the projection assembly to rotate, the distance between the projection assembly and the lamp beads is conveniently controlled, the projection assembly is prevented from touching the lamp beads in the rotating process, and the effect of protecting the lamp beads is achieved.

Description

[Technical field]

[0001] The utility model relates to the technical field of projection devices, in particular to a projection device with anti-collision lamp beads. [Background technology]

[0002] An existing projection device 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 to cooperate 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] In the above structure, the projection assembly is prone to hit the light source assembly during rotation, and the gap between the projection assembly and the light assembly in the up and down directions 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 device 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 device comprises: a fixing seat, comprising a groove formed downward and at least one through groove connected with the groove in an upper and lower direction, the through groove penetrating upward through the bottom wall of the groove; a light source assembly fixed to the fixing seat, the light source assembly comprising a substrate and at least one lamp bead fixed to the substrate, the substrate being accommodated in an accommodating cavity of the fixing seat, the lamp bead exposing the through groove upward; a projection assembly located above the groove, the projection assembly and the lamp bead forming a gap in the upper and lower directions; a motor assembly mounted on the fixing seat and driving the projection assembly to rotate.

[0007] Furthermore, the fixing seat includes a through hole extending upward, and a plurality of through grooves are arranged around the through hole. The motor assembly includes a motor shaft or a gear passing upward through the through hole. The projection assembly includes a fixing part fixed to the motor shaft or the gear cooperates with a gear ring of the fixing part of the projection assembly.

[0008] Furthermore, the fixing seat includes a sink groove formed downward from the top surface thereof, the sink groove is arranged around the groove, and the sink groove is arranged higher than the groove, and the projection assembly is at least partially accommodated in the sink groove.

[0009] Furthermore, the side wall of the sink is configured as a light-guiding surface, and the light-guiding surface is connected to the bottom wall of the sink upwards and to the bottom wall of the groove downwards.

[0010] Furthermore, the distance between the projection assembly and the bottom surface of the groove is greater than the distance between the projection assembly and the bottom surface of the sink.

[0011] Furthermore, the fixing seat includes a plurality of mounting holes penetrating upwardly through the bottom wall of the sink, and the outer edge of the projection assembly is vertically aligned with the plurality of mounting holes.

[0012] Furthermore, the projection assembly includes a fixing frame and a projection film installed on the fixing frame, the fixing frame includes a fixing part, a supporting part connected to the fixing part, and a first projection part, the fixing part is fixed to the motor shaft, and the projection film is at least arranged on the first projection part.

[0013] Furthermore, the first projection portion is disposed around the support portion and is extended upward from the support portion. The support portion extends in a horizontal direction, and the support portion and the first projection portion are perpendicular to each other.

[0014] Furthermore, the outer edge of the first projection portion is provided with a limit block that cooperates with the inner edge of the second projection portion, or the inner edge of the second projection portion is provided with a limit block that cooperates with the outer edge of the second projection portion.

[0015] Furthermore, the highest point of the lamp bead is flush with the bottom surface of the groove or is higher than the bottom surface of the groove.

[0016] Compared with the prior art, the projection device of the utility model has the following beneficial effects:

[0017] The fixing seat includes a groove formed downward and at least one through groove connected with the groove in upper and lower directions, and the through groove penetrates the bottom wall of the groove upward; the light source assembly is fixed to the fixing seat, and the light source assembly includes a substrate and at least one lamp bead fixed to the substrate, the substrate is accommodated in the accommodating cavity of the fixing seat, and the lamp bead exposes the through groove upward; the projection assembly is located above the groove, and a gap is formed between the projection assembly and the lamp bead in the upper and lower directions; the motor assembly is installed on the fixing seat and drives the projection assembly to rotate, so as to control the distance between the projection assembly and the lamp bead, prevent the projection assembly from touching the lamp bead during rotation, and protect the lamp bead.

Brief Description of the Drawings

[0018] Figure 1 It is a three-dimensional diagram of the projection device 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] Projection device 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 device 100 of the present invention comprises a fixing base 1, a motor assembly 2 installed 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 device 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 its top surface, 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 set as a light guide surface 126, and the light guide 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 0.5mm-5mm. The light emitted by the lamp bead 32 reaches the projection film 42 after passing through the support portion 412. 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 device of the utility model has the following beneficial effects:

[0035] (1) A fixing seat includes a groove formed downward and at least one through groove connected to the groove in upper and lower directions, and the through groove penetrates upward through the bottom wall of the groove; a light source assembly is fixed to the fixing seat, and the light source assembly includes a substrate and at least one lamp bead fixed to the substrate, and the substrate is accommodated in the accommodating cavity of the fixing seat, and the lamp bead is exposed to the through groove upward; a projection assembly is located above the groove, and a gap is formed between the projection assembly and the lamp bead in the upper and lower directions; a motor assembly is installed on the fixing seat and drives the projection assembly to rotate, so as to control the distance between the projection assembly and the lamp bead, prevent the projection assembly from touching the lamp bead during rotation, and protect 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 device, characterized in that: include: The fixing seat comprises a groove formed downward and at least one through groove connected with the groove in an up-and-down manner, wherein the through groove penetrates the bottom wall of the groove upward; A light source assembly is fixed to the fixing seat, 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 of the fixing seat, and the lamp bead is exposed upward from the through slot; A projection assembly is located above the groove, and a gap is formed between the projection assembly and the lamp bead in the up and down directions; The motor component is installed on the fixing seat and drives the projection component to rotate.

2. The projection device as claimed in claim 1, characterized in that: The fixing seat includes a through hole extending upward, and a plurality of through grooves are arranged around the through hole. The motor assembly includes a motor shaft or a gear passing upward through the through hole. The projection assembly includes a fixing part fixed to the motor shaft or the gear cooperates with a gear ring of the fixing part of the projection assembly.

3. The projection device as claimed in claim 2, characterized in that: The fixing seat comprises a sink groove which is recessed downward from the top surface thereof, the sink groove is arranged around the groove and is higher than the groove, and the projection assembly is at least partially received in the sink groove.

4. The projection device as claimed in claim 3, characterized in that: The side wall of the sink is configured as a light-guiding surface, and the light-guiding surface is connected to the bottom wall of the sink upwards and to the bottom wall of the groove downwards.

5. The projection device as claimed in claim 3, characterized in that: The distance between the projection assembly and the bottom surface of the groove is greater than the distance between the projection assembly and the bottom surface of the sink.

6. The projection device as claimed in claim 3, characterized in that: The fixing seat comprises a plurality of mounting holes penetrating upwardly through the bottom wall of the sink, and the outer edge of the projection assembly is vertically aligned with the plurality of mounting holes.

7. The projection device according to any one of claims 2 to 6, characterized in that: The projection assembly includes a fixing frame and a projection sheet installed on the fixing frame, the fixing frame includes a fixing portion, a supporting portion connected to the fixing portion, and a first projection portion, the fixing portion is fixed to the motor shaft, and the projection sheet is at least arranged on the first projection portion.

8. The projection device as claimed in claim 7, characterized in that: The first projection portion is disposed around the support portion and extends upward from the support portion. The support portion extends in a horizontal direction, and the support portion and the first projection portion are perpendicular to each other.

9. The projection device as claimed in claim 8, characterized in that: The fixing frame also includes a first projection part and a second projection part, the outer edge of the first projection part is provided with a limit block matching with the inner edge of the second projection part, or the inner edge of the second projection part is provided with a limit block matching with the outer edge of the second projection part.

10. The projection device according to any one of claims 1 to 6, characterized in that: The highest point of the lamp bead is flush with the bottom surface of the groove or is higher than the bottom surface of the groove.

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