Laser light combining device and projection equipment
By designing optical modules and heat dissipation modules in the laser beam combining device, and utilizing components such as connecting components, heat dissipation media, and fans to achieve timely heat transfer and dissipation, the problem of heat accumulation during laser operation is solved, and the reliability of the projection equipment is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-03
AI Technical Summary
The existing projection equipment's light source system is prone to heat buildup during laser operation, increasing the risk of light source system failure.
Design a laser light combining device, including a light output module and a heat dissipation module. The light output module and the heat dissipation module are connected by a connecting component. Active or passive heat dissipation is achieved by using heat dissipation medium and fan components to transfer and dissipate heat in a timely manner.
This effectively avoids heat accumulation during the operation of the light-emitting components, ensures the heat dissipation performance of the laser light combining device, and reduces the risk of projection equipment failure.
Smart Images
Figure CN223966809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of projection equipment technology, and in particular to a laser light combining device and a projection device. Background Technology
[0002] In related technologies, to ensure the display effect of projection equipment, the light source system of projection equipment usually adopts a scheme of combining multiple lasers. Since lasers release a lot of heat during operation, this heat can easily accumulate at the housing components where the lasers are installed, thereby increasing the risk of light source system failure. Utility Model Content
[0003] The main purpose of this invention is to propose a laser light combining device, which aims to ensure the heat dissipation performance of the laser light combining device and reduce the risk of projection equipment failure.
[0004] To achieve the above objectives, the laser beam combining device proposed in this utility model includes:
[0005] A light-emitting module, wherein the light-emitting module is provided with at least two light-emitting components; and
[0006] A heat dissipation module, comprising a heat dissipation component and at least two connecting components, each of the connecting components being connected between a light-emitting component and the heat dissipation component, so that heat is transferred from the light-emitting component toward the heat dissipation component.
[0007] In one embodiment, a heat dissipation channel is formed within the connecting component for filling a heat dissipation medium. At least a portion of the heat dissipation channel is located between the light-emitting component and the heat dissipation component for heat exchange connection with the light-emitting component and the heat dissipation component, respectively.
[0008] In one embodiment, the connection component includes:
[0009] A heat dissipation pipe, wherein a heat dissipation channel is formed within the heat dissipation pipe, and the light-emitting component and the heat dissipation component are sequentially arranged along the extension direction of the heat dissipation pipe; and
[0010] A pump body is provided on the heat dissipation pipe to allow the heat dissipation medium to circulate within the heat dissipation pipe.
[0011] In one embodiment, the light-emitting component has a mounting surface, and the pump body is fixed to the mounting surface.
[0012] In one embodiment, the heat dissipation assembly includes:
[0013] Main casing, which is heat-exchange connected to the heat dissipation pipes, and the main casing has a heat dissipation side; and
[0014] A fan is provided on the heat dissipation side of the main casing to provide ventilation and heat dissipation to the heat dissipation side.
[0015] In one embodiment, a plurality of fans are provided, and the plurality of fans are arranged side by side on the heat dissipation side.
[0016] In one embodiment, the heat dissipation assembly further includes a heat dissipation structure disposed close to the heat dissipation side.
[0017] In one embodiment, an inner cavity is formed within the main housing, and the heat dissipation pipe passes through the inner cavity;
[0018] And / or, an inner cavity is formed within the main housing, and the heat dissipation pipe is connected to the inner cavity.
[0019] In one embodiment, the laser beam combining device further includes a mounting shell, the outer wall of which is provided with a plurality of mounting openings, and each of the light-emitting components is correspondingly disposed in one of the mounting openings for emitting light rays from the mounting openings into the mounting shell;
[0020] The connecting component is fixed to the outer wall of the mounting housing and abuts against at least a portion of the light-emitting component.
[0021] This utility model also proposes a projection device, including the laser beam combining device described in any one of the foregoing claims, wherein the laser beam combining device includes:
[0022] A light-emitting module, wherein the light-emitting module is provided with at least two light-emitting components; and
[0023] A heat dissipation module, comprising a heat dissipation component and at least two connecting components, each of the connecting components being connected between a light-emitting component and the heat dissipation component, so that heat is transferred from the light-emitting component toward the heat dissipation component.
[0024] The laser beam combining device of this utility model includes a light-emitting module and a heat dissipation module. The light-emitting module includes at least two light-emitting components for beam combining. The heat dissipation module includes a heat dissipation component and at least two connecting components. By connecting each connecting component between a light-emitting component and a heat dissipation component, the heat released by the light-emitting component during operation can be transferred to the heat dissipation component through the connecting components for timely heat dissipation. This avoids the accumulation of heat generated by the light-emitting component during operation, ensures the heat dissipation performance of the laser beam combining device, and reduces the risk of projection equipment failure. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0026] Figure 1 A schematic diagram of an embodiment of the laser beam combining device provided by this utility model;
[0027] Figure 2 for Figure 1 A partial structural diagram of the laser beam combining device;
[0028] Figure 3 for Figure 2 Exploded view of a partial structure of the laser combining device.
[0029] Explanation of icon numbers:
[0030] 100. Laser beam combining device; 10. Beam output module; 11. Beam output component; 20. Heat dissipation module; 21. Heat dissipation component; 211. Main housing; 212. Fan; 22. Connecting component; 221. Heat dissipation pipeline; 222. Pump body; 30. Mounting housing; 31. Mounting port.
[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0035] In related technologies, to ensure the display effect of projection equipment, the light source system of projection equipment usually adopts a scheme of combining multiple lasers. Since lasers release a lot of heat during operation, this heat can easily accumulate at the housing components where the lasers are installed, thereby increasing the risk of light source system failure.
[0036] This utility model proposes a laser light combining device 100.
[0037] Please see Figures 1 to 3 In one embodiment of this utility model, the laser beam combining device 100 includes:
[0038] Light-emitting module 10, wherein the light-emitting module 10 is provided with at least two light-emitting components 11; and
[0039] The heat dissipation module 20 includes a heat dissipation component 21 and at least two connecting components 22. Each connecting component 22 is connected between a light emitting component 11 and the heat dissipation component 21 to transfer heat from the light emitting component 11 toward the heat dissipation component 21.
[0040] The light-emitting module 10 serves as the light source for the projection device, generating and emitting a light beam. The light-emitting module 10 includes at least two light-emitting components 11, which may, but are not limited to, lasers. The light beams emitted by the at least two light-emitting components 11, after being combined, can propagate outward along the same path. In some embodiments, the light beams emitted by the light-emitting components 11 can be modulated using one or more combinations of structures such as mirrors and light-combining prisms to achieve the light-combining function of multiple light-emitting components 11.
[0041] The heat dissipation module 20 includes a heat dissipation component 21 and at least two connecting components 22. The heat dissipation component 21 can dissipate heat passively; for example, it can include heat dissipation fins, where heat from the light-emitting component 11 is transferred to the heat dissipation component 21 via the connecting components 22 and then dissipated by the heat dissipation fins. Alternatively, the heat dissipation component 21 can also dissipate heat actively; for example, it can use a driving fan 212 to ventilate and dissipate heat from the connecting components 22, or it can use a thermoelectric cooler to cool the connecting components 22. No further limitations are specified here.
[0042] Therefore, it is understood that the technical solution of this utility model can transfer the heat released by the light-emitting component 11 during operation to the heat dissipation component 21 in a timely manner through the connection component 22 of the heat dissipation module 20, so that the heat dissipation component 21 can dissipate heat in a timely manner, thereby avoiding the accumulation of heat generated by the light-emitting component 11 during operation, ensuring the heat dissipation performance of the laser light combining device 100, and reducing the risk of projection equipment failure.
[0043] In an embodiment of the present invention, a heat dissipation channel is formed in the connecting component 22 for filling a heat dissipation medium. At least a portion of the heat dissipation channel is located between the light-emitting component 11 and the heat dissipation component 21 for heat exchange connection with the light-emitting component 11 and the heat dissipation component 21, respectively.
[0044] The heat dissipation medium can be a solid medium with high thermal conductivity, possessing strong thermal conductivity and capable of rapidly conducting heat from the higher-temperature light-emitting component 11 to the lower-temperature heat dissipation component 21. In other embodiments, the heat dissipation medium can also be a liquid medium that can circulate within the heat dissipation channel. It absorbs and carries away heat from the light-emitting component 11 as it flows through it, transferring the heat to the heat dissipation component 21 for cooling, thereby achieving the circulating heat dissipation function of the heat dissipation module 20. Of course, the heat dissipation medium can also be of other types; the specific implementation can be set according to actual needs and is not limited here.
[0045] Specifically, in an embodiment of this utility model, the connecting component 22 includes a heat dissipation pipe 221 and a pump body 222. The heat dissipation pipe 221 forms the heat dissipation channel. The light-emitting component 11 and the heat dissipation component 21 are arranged sequentially along the extension direction of the heat dissipation pipe 221. The pump body 222 is disposed on the heat dissipation pipe 221 and is used to circulate the heat dissipation medium within the heat dissipation pipe 221.
[0046] Please see Figures 2 to 3In this embodiment of the invention, the light-emitting component 11 has a mounting surface, and the pump body 222 is fixed to the mounting surface. This arrangement allows the pump body 222 to be mounted and fixed using the light-emitting component 11, and the outlet and inlet of the pump body 222 are respectively connected to the two ends of the heat dissipation pipe, facilitating the rapid assembly and stable connection of the connecting component 22 and the light-emitting component 11.
[0047] Please see Figure 1 In an embodiment of this utility model, the heat dissipation assembly 21 includes a main shell 211 and a fan 212. The main shell 211 is heat-exchange connected to the heat dissipation pipe 221, and the main shell 211 has a heat dissipation side. The fan 212 is located on the heat dissipation side of the main shell 211 and is used to ventilate and dissipate heat on the heat dissipation side.
[0048] The main housing 211 serves as the mounting base for the heat dissipation assembly 21, housing functional components such as the fan 212, and connecting with the heat dissipation pipes 221 for heat exchange. In one embodiment, a heat dissipation side is formed on one surface of the main housing 211. After heat exchange between the main housing 211 and the heat dissipation pipes 221, heat can be transferred to the heat dissipation side and dissipated to the outside. The fan 212 is fixedly installed on this heat dissipation side, thereby accelerating air circulation and improving the heat dissipation efficiency of the heat dissipation assembly 21, achieving a better air-cooling effect.
[0049] In one feasible implementation, the main housing 211 may be constructed of a liquid cooling plate, within which a space for coolant flow may be formed. The fan 212 may be installed and connected to the main housing 211 by, but is not limited to, a detachable connection such as a threaded connection.
[0050] Please see Figure 1 In this embodiment of the invention, a plurality of fans 212 are provided, and the plurality of fans 212 are arranged side by side on the heat dissipation side. Thus, multiple fans 212 can work together to ventilate and dissipate heat on the heat dissipation side, further improving the heat dissipation efficiency of the heat dissipation component 21. The number of fans 212 can be set according to actual needs and is not limited here.
[0051] In an embodiment of this invention, the heat dissipation assembly 21 further includes a heat dissipation structure disposed close to the heat dissipation side. By disposing of the heat dissipation structure close to the heat dissipation side, the heat dissipation performance of the heat dissipation assembly 21 can be further improved.
[0052] In one embodiment, the heat dissipation structure may be, but is not limited to, a heat dissipation block, which may be plate-shaped or block-shaped, and its material may be aluminum or other metal materials. It is understood that the heat dissipation block may be part of the main shell 211 to form the heat dissipation side of the main shell 211; the heat dissipation block may also be a component independent of the shell.
[0053] Alternatively, the heat dissipation structure can be configured as heat dissipation fins, which are composed of multiple heat dissipation fins arranged at intervals. This increases the contact area between the heat dissipation structure and the air, thereby helping to ensure the heat dissipation performance of the heat dissipation structure.
[0054] In another embodiment, the heat dissipation structure may also be configured as heat dissipation holes, which may be formed on the surface of the heat dissipation side.
[0055] Furthermore, in one feasible implementation, the heat dissipation component 21 includes several heat dissipation structures, which can be configured as one or more combinations of structures such as heat sinks, heat dissipation fins, and heat dissipation holes. Specific implementation methods can be customized according to actual needs and are not limited here.
[0056] In one embodiment of this utility model, an inner cavity is formed within the main shell 211, and the heat dissipation pipe 221 passes through the inner cavity. Thus, the inner cavity provides partial installation space for the heat dissipation pipe 221, and the inner cavity wall absorbs heat from the heat dissipation medium within the heat dissipation pipe 221.
[0057] The inner cavity can be a single-sided through-hole, and the heat dissipation pipe 221 can be bent in the inner cavity to enter and exit the inner cavity from the same side of the main shell 211; the inner cavity can also be a two-sided through-hole, and the heat dissipation pipe 221 can enter the inner cavity from one end of the main shell 211 and leave the inner cavity from the other end.
[0058] In another embodiment of this utility model, an inner cavity is formed inside the main shell 211, and the heat dissipation pipe 221 is connected to the inner cavity. In this way, the main shell 211 and the water pump can be connected through the heat dissipation pipe 221 to form a circulation loop, and the heat dissipation medium can enter the inner cavity and directly exchange heat with the main shell 211 body.
[0059] Please see Figure 2 and Figure 3 In an embodiment of this utility model, the laser beam combining device 100 further includes a mounting shell 30. The outer wall of the mounting shell 30 is provided with a plurality of mounting ports 31. Each light-emitting component 11 is correspondingly provided with one of the mounting ports 31 for emitting light rays into the mounting shell 30 through the mounting ports 31. The connecting component 22 is fixed to the outer wall of the mounting shell 30 and abuts against at least a portion of the light-emitting component 11.
[0060] Specifically, the pump body of the connecting component 22 can be installed on the outer wall of the mounting housing 30 by means of threaded connection or other detachable connection, and is positioned opposite to the mounting port 31 so as to abut against the light-emitting component 11 provided in the mounting port 31. This arrangement allows the heat dissipation module 20 to be placed outside the mounting housing 30, reducing the space it occupies inside the mounting housing 30, and also improving the ease of assembly of the heat dissipation module 20.
[0061] This utility model also proposes a projection device, which includes a laser light combining device 100. The specific structure of the laser light combining device 100 is as described in the above embodiments. Since this projection device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. Specifically, the projection device can be configured as a laser projector.
[0062] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A laser light combining device, characterized by comprising: The laser light combining device comprises: a light emitting module provided with at least two light emitting components; and a heat dissipating module comprising a heat dissipating component and at least two connecting components, each of the connecting components being connected between the light emitting component and the heat dissipating component to transmit heat from the light emitting component to the heat dissipating component.
2. The laser light combining apparatus according to claim 1, wherein The connecting component is provided with a heat dissipating channel filled with a heat dissipating medium, at least part of the heat dissipating channel being located between the light emitting component and the heat dissipating component to exchange heat with the light emitting component and the heat dissipating component, respectively.
3. The laser light combining apparatus according to claim 2, wherein The connecting component comprises: a heat dissipating pipeline in which the heat dissipating channel is formed, the light emitting component and the heat dissipating component being arranged along the extension direction of the heat dissipating pipeline in sequence; and a pump body arranged on the heat dissipating pipeline to circulate the heat dissipating medium in the heat dissipating pipeline.
4. The laser light combining apparatus of claim 3, wherein The light emitting component is provided with a mounting surface, and the pump body is fixed to the mounting surface.
5. The laser light combining apparatus of claim 3, wherein The heat dissipating component comprises: a main shell in heat exchange connection with the heat dissipating pipeline, the main shell being provided with a heat dissipating side; and a fan arranged on the heat dissipating side of the main shell to ventilate and dissipate heat from the heat dissipating side.
6. The laser light combining apparatus of claim 5, wherein The fan is provided with a plurality of fans arranged side by side on the heat dissipating side.
7. The laser light combining apparatus of claim 6, wherein The heat dissipating component further comprises a heat dissipating structure arranged close to the heat dissipating side.
8. The laser light combining apparatus of claim 5, wherein The main shell is provided with an inner cavity, and the heat dissipating pipeline is arranged in the inner cavity. The main shell is provided with an inner cavity, and the heat dissipating pipeline is arranged in the inner cavity.
9. The laser light combining apparatus according to any one of claims 1 to 4, wherein The laser light combining device further comprises a mounting shell, and the outer wall of the mounting shell is provided with a plurality of mounting openings, each of the light emitting components being arranged in one of the mounting openings to emit light from the mounting shell. The connecting component is fixed to the outer wall of the mounting shell and abuts against at least part of the light emitting component.
10. A projection apparatus, characterized by, The laser light combining device comprises any one of claims 1 to 9.