Light machine module and projection device
By designing the thermal coupling between the internal radiator and the radiator cover in the optical machine module of the projection device, and setting the light source and the internal radiator on the inner surface of the cover on the same side, the high heat and leakage risks of the optical machine module are solved. The problem is that good heat dissipation effect and miniaturized design have been achieved.
Patent Information
- Application Number
- CN202311050878.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-21
- Publication Date
- 2025-02-21
AI Technical Summary
The optical machine modules of existing projection devices will generate high heat during operation, and there is a risk of leakage when high voltage input, and the heat dissipation effect is poor.
Design an optical machine module, including an optical machine housing, radiator cover, light source and internal radiator. The internal radiator is heat-coupled to the radiator cover. The light source and internal radiator are located next to the inner surface of the cover, providing good The heat dissipation effect.
Through the thermal coupling design of the internal radiator and the effective transmission of the light source thermal energy, the good heat dissipation effect of the optical machine module is achieved, reducing the overall volume, and improving safety and avoiding the risk of leakage.
Smart Images
Figure CN119493323A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a projection device, and in particular to an optical machine module and a projection device with good heat dissipation effect. Background Art
[0002] At present, the size of projection devices is getting smaller and smaller, and the optical module of the projection device will generate high heat during operation. How to improve the heat dissipation effect of the optical module is the research direction in this field. In addition, in order to facilitate heat dissipation, the optical module of the projection device is usually made of metal, and when the input light source voltage is high, there is a risk of leakage. Summary of the invention
[0003] The present invention provides an optical machine module and a projection device, which have an internal radiator and can improve the heat dissipation effect in a limited space.
[0004] The present invention provides an optical machine module, which includes: an optical machine housing; a heat sink cover, which covers the optical machine housing to form an internal space together, and the heat sink cover includes an inner surface of the cover facing the internal space; a light source, which is arranged on the inner surface of the cover; and an internal heat sink, which is located next to the inner surface of the cover and close to the light source, and the internal heat sink is thermally coupled to the heat sink cover.
[0005] In one embodiment of the present invention, an insulating plate is further included, wherein the insulating plate includes an insulating plate outer surface, and the heat sink cover is disposed on the insulating plate outer surface to be fixed to the optical machine housing through the insulating plate.
[0006] In one embodiment of the present invention, the insulating plate includes a first hole and a second hole adjacent to each other, the light source is located in the first hole, and the internal heat sink is located in the second hole.
[0007] In one embodiment of the present invention, one of the inner surface of the cover body of the heat sink and the outer surface of the insulating plate of the insulating plate includes a first annular rib, and the other includes a first annular groove, a first sealing ring is disposed in the first annular groove, the first annular rib extends into the first annular groove and presses against the first sealing ring, and the first annular rib or the first annular groove of the insulating plate surrounds the first hole and the second hole.
[0008] In one embodiment of the present invention, one of an optical machine upper surface of the optical machine housing and an insulating plate inner surface of the insulating plate includes a second annular rib, and the other includes a second annular groove, a second sealing ring is disposed in the second annular groove, and the second annular rib extends into the second annular groove and presses against the second sealing ring.
[0009] In one embodiment of the present invention, the insulating plate includes a wire management structure located on an outer surface of the insulating plate.
[0010] In one embodiment of the present invention, the insulation board includes an insulation board inner surface and a plurality of structural reinforcement ribs located on the insulation board inner surface.
[0011] In one embodiment of the present invention, an external radiator is further included, wherein the radiator cover includes a cover outer surface opposite to the cover inner surface, and the external radiator is disposed on the cover outer surface.
[0012] In one embodiment of the present invention, the external heat sink includes a fan, a fin, a cooler or a radiator, and the internal heat sink includes a fan, a fin or a cooler.
[0013] In one embodiment of the present invention, the light source is a laser light source or a light emitting diode light source.
[0014] The present invention also provides a projection device, which includes: the above-mentioned optical machine module, used to provide an illumination beam; an imaging module, located on the optical path of the illumination beam, to convert the illumination beam into an image beam; and a lens module, located on the optical path of the image beam, to project the image beam out of the projection device.
[0015] Based on the above, in the optical machine module of the projection device of the present invention, the radiator cover covers the optical machine housing, the light source is arranged on the inner surface of the cover of the radiator cover, and the internal radiator is arranged beside the inner surface of the cover and thermally coupled to the radiator cover. The optical machine module of the present invention arranges the internal radiator in the internal space, and makes good use of the space so that the optical machine module can maintain a relatively small overall volume. In addition, the light source and the internal radiator are both located beside the inner surface of the cover and on the same side of the radiator cover. Such a configuration allows the heat energy emitted by the light source to be better transferred to the internal radiator through the radiator cover, thereby providing the optical machine module with a good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the appearance of an optical machine module according to an embodiment of the present invention.
[0017] Figure 2 is hidden Figure 1 Schematic diagram of the structure of the optical-mechanical module with external radiator and heat pipe.
[0018] Figure 3 Yes Figure 2 Schematic diagram of the partial explosion of the radiator cover, light source, internal radiator and insulation plate moving up.
[0019] Figure 4 yes Figure 3 Schematic diagram from another perspective.
[0020] Figure 5 is hidden Figure 4 Schematic diagram of the partial explosion of the optical machine housing and the internal heat sink moved downward.
[0021] Figure 6 is hidden Figure 5 Exploded diagram of the internal heat sink.
[0022] Figure 7 yes Figure 1 Schematic diagram of the insulating plate of the optomechanical module.
[0023] Figure 8 is a schematic diagram of a projection device according to an embodiment of the present invention. DETAILED DESCRIPTION
[0024] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.
[0025] Figure 1 It is a schematic diagram of the appearance of an optical machine module according to an embodiment of the present invention. Figure 2 is hidden Figure 1 Schematic diagram of the structure of the optical-mechanical module with external radiator and heat pipe. Figure 3 Yes Figure 2 Schematic diagram of the partial explosion of the radiator cover, light source, internal radiator and insulation plate moving up. Figure 4 yes Figure 3 Schematic diagram from another perspective. Figure 5 is hidden Figure 4 Schematic diagram of a partial explosion of the optical machine housing and moving the internal heat sink downward. Figure 6 is hidden Figure 5 Exploded diagram of the internal heat sink. Figure 7 yes Figure 1 Schematic diagram of the insulating plate of the optomechanical module.
[0026] See also Figures 1 to 7 The optical machine module 100 of this embodiment includes an optical machine housing 110, a heat sink cover 120, and a light source 130 ( Figure 4 ) and internal radiator 140( Figure 4 The heat sink cover 120 covers the optical machine housing 110 to form an internal space S ( Figure 3 ).
[0027] like Figure 6 As shown, the radiator cover 120 includes a Figure 3 ) on the inner surface 124 of the cover body, and the light source 130 is disposed on the inner surface 124 of the cover body. The light source 130 is a laser light source 130 or a light emitting diode light source 130, but the type of the light source 130 is not limited thereto.
[0028] like Figure 5 and Figure 6 As shown, the internal heat sink 140 ( Figure 5 ) is located beside the inner surface 124 of the cover and close to the light source 130, and the internal heat sink 140 is thermally coupled to the heat sink cover 120 ( Figure 6 In the present embodiment, the internal heat sink 140 includes fins, but in other embodiments, the internal heat sink 140 may also include a fan, fins and / or a cooler, and the type of the internal heat sink 140 is not limited thereto.
[0029] The optical engine module 100 of this embodiment has the internal heat sink 140 disposed beside the inner surface 124 of the cover, and located in the inner space S ( Figure 3 ), so the internal space S of the optical engine module 100 can be well utilized, and the heat dissipation effect of the optical engine module 100 can be improved. In addition, in this embodiment, the light source 130 and the internal heat sink 140 are both located beside the inner surface 124 of the cover, and are located on the same side of the heat sink cover 120. Such a configuration allows the heat energy emitted by the light source 130 to be better transferred to the internal heat sink 140 through the heat sink cover 120, thereby providing the optical engine module 100 with a good heat dissipation effect.
[0030] It is worth mentioning that in this embodiment, if the material of the optical engine housing 110 includes metal, and the voltage input to the light source 130 is relatively high (for example, more than 60 volts), in order to improve safety, the optical engine module 100 may further optionally include an insulating plate 150, which is disposed between the light source 130 and the optical engine housing 110 to effectively isolate electrical energy. In this embodiment, the material of the insulating plate 150 is, for example, plastic, but this is not a limitation.
[0031] like Figure 6 As shown, the insulating plate 150 includes an insulating plate outer surface 151 , and the heat sink cover 120 is disposed on the insulating plate outer surface 151 to be fixed to the optical machine housing 110 through the insulating plate 150 .
[0032] The insulating plate 150 includes a first hole 153 and a second hole 154 adjacent to each other. The light source 130 is located in the first hole 153. The internal heat sink 140 ( Figure 4 ) is located in the second hole 154. Specifically, in this embodiment, the light source 130 passes through the first hole 153 and is fixed to the heat sink cover 120, and the internal heat sink 140 passes through the second hole 154 and is fixed to the heat sink cover 120.
[0033] Of course, in other embodiments, the light source 130 and / or the internal heat sink 140 may also be fixed to the insulating plate 150 and contact the heat sink cover 120. The configuration relationship between the light source 130, the internal heat sink 140, the heat sink cover 120 and the insulating plate 150 is not limited thereto.
[0034] In addition, in this embodiment, the optical machine module 100 is dustproof to prevent dust from entering the internal space S ( Figure 3 ). One of the cover inner surface 124 of the heat sink cover 120 and the insulation plate outer surface 151 of the insulation plate 150 includes a first annular rib 160 , and the other includes a first annular groove 162 .
[0035] Specifically, if Figure 6 As shown, the inner surface 124 of the heat sink cover 120 includes a first annular rib 160. Figure 7 As shown, the insulating plate outer surface 151 of the insulating plate 150 includes a first annular groove 162 . The first annular groove 162 of the insulating plate 150 surrounds the first hole 153 and the second hole 154 . The first sealing ring 164 is disposed in the first annular groove 162 .
[0036] When the heat sink cover 120 is assembled to the insulating plate 150 , the first annular rib 160 extends into the first annular groove 162 and presses against the first sealing ring 164 , so that the heat sink cover 120 and the insulating plate 150 are sealed.
[0037] In addition, if Figure 3 and Figure 4 As shown, one of the optical machine upper surface 112 of the optical machine housing 110 and an insulating plate inner surface 152 of the insulating plate 150 includes a second annular rib 170 ( Figure 3 ), and the other includes a second annular groove 172 ( Figure 4 ).
[0038] Specifically, the insulating plate inner surface 152 of the insulating plate 150 includes a second annular rib 170, and the optical upper surface 112 of the optical housing 110 includes a second annular groove 172. The second sealing ring 174 ( Figure 4 ) is disposed in the second annular groove 172.
[0039] When the insulating plate 150 is assembled to the optical machine housing 110 , the second annular rib 170 extends into the second annular groove 172 and presses against the second sealing ring 174 , so that the insulating plate 150 and the optical machine housing 110 are sealed.
[0040] In addition, in the present embodiment, the insulating plate 150 further includes a wire management structure 156 located on the outer surface 151 of the insulating plate. The wire management structure 156 can be used to fix wires (not shown) outside the optical machine housing 110. For example, in one embodiment, if the external radiator 145 is a fan, the wire management structure 156 can be used to fix the wires of the external radiator 145. In another embodiment, the wire management structure 156 can be used to fix the wires of the light source 130 or other electronic components (not shown) in the optical machine housing 110. In this way, the wires around the optical machine module 100 of the present embodiment can be kept neat and avoid wire confusion.
[0041] Furthermore, by Figure 5 It can be seen that in this embodiment, the insulating plate 150 includes an insulating plate inner surface 152 and a plurality of structural strengthening ribs 155 located on the insulating plate inner surface 152. The structural strengthening ribs 155 are staggered to form a plurality of frame shapes, for example, to enhance the structural strength of the insulating plate 150 in different directions, but the arrangement of the structural strengthening ribs 155 is not limited thereto.
[0042] In addition, if Figure 1 As shown, in this embodiment, the optical engine module 100 further includes an external heat sink 144 , the heat sink cover 120 includes a cover outer surface 122 relative to the cover inner surface 124 , and the external heat sink 144 is disposed on the cover outer surface 122 .
[0043] Specifically, in this embodiment, the external radiator 144 includes a combination of fins 145 and heat pipes 147, and the heat pipes 147 contact the radiator cover 120 and penetrate the fins 145. Therefore, the fins 145 are thermally coupled to the radiator cover 120 through the heat pipes 147. In other embodiments, the external radiator 144 may also include a fan, a cooler, or a water cooling radiator, and the type of the external radiator 144 is not limited thereto.
[0044] In this embodiment, the heat generated by the light source 130 of the optical engine module 100 can be synchronously transferred to the internal heat sink 140 and the external heat sink 144 via the heat sink cover 120, and can be dissipated simultaneously by the internal heat sink 140 and the external heat sink 144. In addition, the internal heat sink 140 is disposed in the internal space S, so that the optical engine module 100 can still maintain a relatively small overall size and can enjoy the heat dissipation effect of multiple heat sinks.
[0045] Figure 8 is a schematic diagram of a projection device according to an embodiment of the present invention. Figure 8 The projection device 10 of this embodiment includes an optical machine module 100, an imaging module 20 and a lens module 30. The optical machine module 100 is, for example, Figure 1The optical machine module 100 is not limited thereto, as long as the internal radiator 140 is disposed in the internal space S, and the light source 130 and the internal radiator 140 are both located beside the inner surface 124 of the cover, and the optical machine module located on the same side of the radiator cover 120 has a good utilization space and provides a good heat dissipation effect for the optical machine module.
[0046] The optical machine module 100 is used to provide an illumination beam L1. The illumination beam L1 leaves the optical machine module 100 along a desired optical path, and the imaging module 20 is located on the optical path of the illumination beam L1 to convert the illumination beam L1 into an image beam L2. The imaging module 20 is, for example, a digital micromirror device (DMD), but the type of the imaging module 20 is not limited thereto. The lens module 30 is located on the optical path of the image beam L2 to project the image beam L2 out of the projection device 10. The projection device 10 of this embodiment has a good heat dissipation effect through the optical machine module 100, and the heat dissipation can be improved in conjunction with it.
[0047] In summary, in the optical machine module of the projection device of the present invention, the radiator cover covers the optical machine housing, the light source is arranged on the inner surface of the cover of the radiator cover, and the internal radiator is arranged beside the inner surface of the cover and thermally coupled to the radiator cover. The optical machine module of the present invention arranges the internal radiator in the internal space, and makes good use of the space so that the optical machine module can maintain a smaller overall volume. In one embodiment, even if the optical machine module is provided with an external radiator, the optical machine module of the present invention still has a smaller overall size compared to when all radiators are arranged outside the optical machine module. In addition, the light source and the internal radiator are both located beside the inner surface of the cover, and on the same side of the radiator cover. Such a configuration allows the heat energy emitted by the light source to be better transferred to the internal radiator through the radiator cover, thereby providing the optical machine module with a good heat dissipation effect.
[0048] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.
Claims
1. An optical machine module, characterized in that: include: Optical machine housing; A heat sink cover body, covering the optical machine housing to form an internal space together, and the heat sink cover body includes an inner cover surface facing the internal space; A light source is disposed on the inner surface of the cover; as well as The internal heat sink is located beside the inner surface of the cover and close to the light source. The internal heat sink is thermally coupled to the heat sink cover.
2. The optical machine module according to claim 1, characterized in that: It also includes an insulating plate, wherein the insulating plate includes an insulating plate outer surface, and the heat sink cover is arranged on the insulating plate outer surface to be fixed to the optical machine housing through the insulating plate.
3. The optical machine module according to claim 2, characterized in that: The insulating plate comprises a first hole and a second hole adjacent to each other. The light source is located in the first hole, and the internal heat sink is located in the second hole.
4. The optical machine module according to claim 3, characterized in that: One of the inner surface of the cover body of the heat sink and the outer surface of the insulating plate of the insulating plate includes a first annular rib, and the other includes a first annular groove. A first sealing ring is arranged in the first annular groove. The first annular rib extends into the first annular groove and presses against the first sealing ring. The first annular rib or the first annular groove of the insulating plate surrounds the first hole and the second hole.
5. The optical machine module according to claim 2, characterized in that: One of an optical upper surface of the optical housing and an insulating plate inner surface of the insulating plate includes a second annular rib, and the other includes a second annular groove. A second sealing ring is arranged in the second annular groove. The second annular rib extends into the second annular groove and presses the second sealing ring.
6. The optical machine module according to claim 2, characterized in that: The insulating plate includes a wire management structure located on the outer surface of the insulating plate.
7. The optical machine module according to claim 2, characterized in that: The insulating plate comprises an inner surface of the insulating plate and a plurality of structural strengthening ribs located on the inner surface of the insulating plate.
8. The optical machine module according to claim 1, wherein: It also includes an external radiator, wherein the radiator cover includes a cover outer surface relative to the cover inner surface, and the external radiator is disposed on the cover outer surface.
9. The optical machine module according to claim 8, characterized in that: The external heat sink includes a fan, a fin, a cooler or a water-cooling radiator, and the internal heat sink includes a fan, a fin or a cooler.
10. The optical machine module according to claim 1, wherein: The light source is a laser light source or a light emitting diode light source.
11. A projection device, characterized in that: include: The optical machine module according to any one of claims 1 to 10, used to provide an illumination beam; An imaging module is located on the optical path of the illumination beam to convert the illumination beam into an image beam; as well as The lens module is located on the optical path of the image beam to project the image beam out of the projection device.