CN210924169U - Laser light source cooling system of laser projector - Google Patents

Abstract

The utility model discloses a laser light source heat radiation system of a laser projector, which comprises a laser light source 101 positioned in a projector 103, wherein the laser light source is positioned on a light source refrigeration component 102; the light source refrigeration assembly is connected with a group of switching devices 105 through a group of internal circulation pipelines 104, a group of circulation ports of the switching devices are connected with a group of internal cooling system circulation pipelines 106, and the internal cooling system circulation pipelines are connected with an internal cooling system; the other set of circulation ports of the switching device is connected to an external circulation pipeline 108, the external circulation pipeline is connected to a set of quick plugging interfaces 109 on the surface of the projector, and the quick plugging interfaces are connected to an external heat dissipation system 111 through a set of external heat dissipation system circulation pipelines 110. The switching system of the projector laser light source heat dissipation system is simple in structure, convenient and fast to operate and reliable in performance, and effectively solves the problem that the service life of a projector is shortened due to aging of a built-in heat dissipation system of the projector at lower cost.

Description

Laser light source cooling system of laser projector

Technical Field

The utility model relates to a laser projection shows the field, specifically is a laser projector's laser light source cooling system.

Background

The laser light source has the advantages of high brightness, long service life, wide color gamut, energy conservation, environmental protection and the like, and the popularization of laser in the field of projection display is accelerated. In order to ensure the normal operation of the laser light source, the temperature of the laser must be strictly controlled within a certain range. Devices such as a pump source and a laser crystal of the laser generate a large amount of heat during working, so that the temperature of the optical elements is continuously increased during the operation of the equipment, and if the temperature of the components cannot be effectively reduced, the laser cannot work normally. The heat removal system of the laser is critical.

At present, the common heat dissipation modes of the high-power laser light source mainly include two types: the other is an external water cooler, and the mode can provide constant-temperature cooling water for a light source, can meet the refrigeration requirements under various working conditions, but cannot be controlled by one key on a projector, and is inconvenient to control. The other is a built-in heat dissipation system, the heat is transferred from the laser to a radiator by using circulating cooling liquid as a heat carrier of the laser, and then the heat is exchanged with air by blowing the radiator, and the heat dissipation mode is perfectly combined with the projector in appearance and controllability. However, as the service life of the projector increases, more and more dust and oil stains are on the radiator, the surface corrosion and oxidation become more and more serious, the refrigeration capacity and the energy efficiency ratio of the whole heat dissipation system are greatly reduced, and the refrigeration capacity of the heat dissipation system cannot meet the heat dissipation requirement of the laser light source. If the parts of the heat dissipation system are replaced again, the defects of long replacement period, complex operation and high after-sale cost exist. And the environment of the cinema also becomes worse and worse along with the increase of the operating life, even if new heat dissipation parts are replaced, the cinema can not adapt to the current working condition environment, the maintenance interval becomes shorter and shorter, a vicious circle is formed, and the service life of the projector is influenced. Therefore, there is a need for a device for a projector, which can conveniently and quickly connect a new heat dissipation system to the projector when an internal heat dissipation system fails, the refrigeration performance is reduced or the environment of a projection room becomes severe, so as to prolong the service life of the projector.

Disclosure of Invention

An object of the utility model is to provide a laser light source cooling system of laser projector for after the built-in cooling system who solves the projector breaks down, the system maintenance is complicated, the expense is higher shortcoming, and causes built-in cooling system refrigeration ability to descend after the environment is abominable between the projection, can't normally dispel the heat for laser light source, causes the problem that the projector can't use.

The utility model discloses an adopt following technical scheme to realize:

a laser light source heat radiation system of a laser projector comprises a laser light source positioned in the projector, wherein the laser light source is positioned on a light source refrigeration component; the light source refrigeration assembly is connected with a group of switching devices through a group of internal circulation pipelines, a group of circulation ports of the switching devices are connected with a group of internal cooling system circulation pipelines, and the internal cooling system circulation pipelines are connected with an internal cooling system; the other group of circulation ports of the switching device is connected with a group of external circulation pipelines, the external circulation pipelines are connected with a group of quick plugging interfaces positioned on the surface of the projector, and the quick plugging interfaces are connected with an external heat dissipation system through a group of external heat dissipation system circulation pipelines; the temperature information of the laser light source is collected by a laser light source temperature probe and then transmitted to a control system, and the control system is connected with an external heat dissipation system through an external heat dissipation system communication interface positioned on the surface of the projector; the control system controls a group of switching devices to act.

When the quick plug-in type switching system works, the internal circulation pipeline is arranged inside the projector and connects the switching system with the quick plug-in interface. The quick plug-in interface can be installed on the projector shell, can be connected with the circulation pipeline of an external heat dissipation system at any time when the built-in heat dissipation system fails, has the functions of plug-in and stop, plug-and-play and prevents cooling liquid from leaking. The switching device can be respectively connected with the built-in heat dissipation system and the external heat dissipation system through the circulating pipeline, free switching of the circulating pipeline of the built-in heat dissipation system and the circulating pipeline of the external heat dissipation system can be achieved, and it is guaranteed that one system pipeline is always connected with the water cooling plate pipeline of the laser light source.

The control system monitors the temperature of the light source in real time through the temperature probe, and can adopt an optimal heat dissipation system according to the ambient temperature of the projector, thereby ensuring that the projector has the lowest energy consumption and the most stable operation in the normal use process. The control system can control the built-in heat dissipation system, the external heat dissipation system and the switching device and is a brain of the whole switching system.

When the refrigerating capacity of the built-in heat dissipation system of the projector is reduced and the requirement for heat dissipation of the light source cannot be met, the circulating pipeline of the external heat dissipation system is connected with the switching device through the quick plugging interface, meanwhile, the control system can control the switching device to block the circulating pipeline of the built-in heat dissipation system, cut off the power supply of the built-in heat dissipation system and simultaneously switch on the circulating pipeline of the external heat dissipation system, then the external heat dissipation system can be used for refrigerating the laser light source, and therefore the normal operation of the projector is guaranteed.

The utility model relates to a rationally, this projector laser light source cooling system's switched systems structure retrencies, controls convenient, dependable performance to lower cost has solved the problem that causes projector life to reduce because of projector's built-in cooling system is ageing effectively, has fine practical application and worth.

Drawings

Fig. 1 is a schematic view of an overall heat dissipation system of a laser light source.

In the figure: 101-a laser light source, 102-a light source refrigeration component, 103-a projector, 104-an internal circulation pipeline, 105-a switching device, 106-an internal heat dissipation system circulation pipeline, 107-an internal heat dissipation system, 108-an external circulation pipeline, 109-a quick plugging interface, 110-an external heat dissipation system circulation pipeline, 111-an external heat dissipation system, 120-a control system, 121-a laser light source temperature probe, 122-a projector internal temperature probe and 123-an external heat dissipation system communication interface.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

A laser light source heat dissipation system of a laser projector can lead in an external heat dissipation system in time when the projector has the problems of poor heat dissipation and the like, thereby ensuring the normal work of the laser light source and prolonging the service life of the projector. The device comprises a switching device, a circulating pipeline, a quick plugging interface, a control system, a temperature probe and an external heat dissipation system communication interface. As shown in fig. 1, the projector comprises a laser light source 101 positioned in a projector 103, wherein the laser light source 101 is positioned on a light source cooling component 102; the light source refrigeration component 102 is connected with a group of switching devices 105 through a group of internal circulation pipelines 104 (including a water outlet pipe and a water return pipe) (namely, the water outlet pipe and the water return pipe are respectively connected with one switching device), a group of circulation ports of the switching devices 105 are connected with a group of internal cooling system circulation pipelines 106 (the same as above), and the internal cooling system circulation pipelines 106 are connected with an internal cooling system; the other set of circulation ports of the switching device 105 is connected to a set of external circulation pipes 108 (same as above), the external circulation pipes 108 are connected to a set of fast plugging interfaces 109 located on the surface of the projector 103, and the fast plugging interfaces 109 are connected to an external heat dissipation system 111 through a set of external heat dissipation system circulation pipes 110; the temperature information of the laser light source 101 is collected by a laser light source temperature probe 121 and then transmitted to a control system 120, and the control system 120 is connected with an external heat dissipation system 111 through an external heat dissipation system communication interface 123 positioned on the surface of the projector 103; the control system 120 receives temperature information collected from the projector's internal temperature probe 122; the control system 120 controls the operation of a set of switching devices 105.

When specifically using, when the built-in cooling system of projector goes wrong and needs external new cooling system, can pass through the utility model discloses convenient and fast's new cooling system of access refrigerates for laser light source.

The laser light source 101 is fixed to the light source cooling unit 102, and a gap between the two is filled with a material having good thermal conductivity.

The switching device may be electromagnetic or manual, and specifically, the switching device 105 may be an electromagnetic three-way valve or a manual three-way valve, and the switching operation of the switching device 105 is controlled by the control system 120.

The control system 120 may be integrated with the projector or laser source control system or may be separate.

The water inlet and outlet of the light source refrigeration assembly 102 are respectively connected with two groups of switching devices 105 through an internal circulation pipeline 104.

The two sets of switching devices 105 are respectively connected with the water inlet and the water outlet of the built-in heat dissipation system 107 through the built-in heat dissipation system circulation pipeline 106.

The two switching devices 105 are respectively connected to the two fast plugging interfaces 109 through an external circulation pipeline 108.

The quick connect/disconnect connector 109 is mounted on the projector housing, and the quick connect/disconnect connector 10 is a device for facilitating the connection of a waterway, and has a function of stopping the connection of a CPC connector by being pulled out, and can prevent the leakage of cooling liquid, so that the use is very convenient.

The control system 120 monitors the operation state of the laser source in real time through the laser source temperature probe 121, and the projector internal temperature probe 122 collects the internal environment temperature of the projector, when the temperature exceeds the system alarm value, the alarm system is triggered to alarm, and the light source is derated to ensure that the projector can continue to project.

When the refrigeration performance of the internal heat dissipation system is reduced or the environment of a projection room is deteriorated and the projector cannot be normally used, the external heat dissipation system 111 needs to be introduced, and only the water inlet and the water outlet of the external heat dissipation system 111 need to be connected with the 2 groups of quick plugging interfaces 109 through the external heat dissipation system circulation pipeline 110, and meanwhile, the connection between the external heat dissipation system communication interface 123 and the external heat dissipation system 111 is connected.

The control system 120 can control the internal heat dissipation system 107 and the external heat dissipation system 111 to be turned on or off through the two sets of switching devices 105, and can ensure the reliable and stable operation of the whole system by controlling the switching devices 105 to switch the refrigeration pipelines.

After the external heat dissipation system 111 is connected, the control system 120 has three modes, namely an intelligent mode, an internal mode and an external mode, and in the intelligent mode, the control system can select an optimal heat dissipation system to dissipate heat of the laser light source according to actual working conditions. For example, when the ambient temperature is below 20 ℃, the internal heat dissipation system is preferentially used, so that the energy consumption of the projector is greatly reduced, when the ambient temperature is above 35 ℃, the control system automatically switches to the external heat dissipation system, simultaneously changes the internal heat dissipation system 107 to be in a shutdown state, and simultaneously controls the switching device 105 to disconnect the pipeline connection between the light source refrigeration assembly 102 and the internal heat dissipation system 107 and connect the circulation pipeline connection with the external heat dissipation system 111. The external heat removal system 111 begins to operate to provide cooling to the projector laser light source and the projector can continue to operate.

The heat dissipation system can not be automatically switched between the internal mode and the external mode, the heat dissipation system always operates in the selected mode, and if the refrigerating capacity is insufficient, the control system can only reduce the power of the light source to ensure that the projector can continuously operate.

The technical solution of the present invention is clearly and completely described above. Obviously, the embodiments described are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments made by those skilled in the art without making creative efforts shall also belong to the protection scope of the present invention.

Claims (3)

1. A laser light source heat dissipation system of a laser projector comprises a laser light source (101) positioned in the projector (103), wherein the laser light source (101) is positioned on a light source refrigeration component (102); the method is characterized in that: the light source refrigeration assembly (102) is connected with a group of switching devices (105) through a group of internal circulation pipelines (104), a group of circulation ports of the switching devices (105) are connected with a group of internal cooling system circulation pipelines (106), and the internal cooling system circulation pipelines (106) are connected with an internal cooling system; the other group of circulation ports of the switching device (105) is connected with a group of external circulation pipelines (108), the external circulation pipelines (108) are connected with a group of quick plugging interfaces (109) positioned on the surface of the projector (103), and the quick plugging interfaces (109) are connected with an external heat dissipation system (111) through a group of external heat dissipation system circulation pipelines (110); the temperature information of the laser light source (101) is collected by a laser light source temperature probe (121) and then transmitted to a control system (120), and the control system (120) is connected with an external heat dissipation system (111) through an external heat dissipation system communication interface (123) positioned on the surface of the projector (103); the control system (120) controls the action of a set of switching devices (105).

2. The heat dissipating system for a laser light source of a laser projector as claimed in claim 1, wherein: the control system (120) receives temperature information collected from a projector internal temperature probe (122) and a laser light source temperature probe (121).

3. The heat dissipating system for a laser light source of a laser projector according to claim 1 or 2, wherein: the switching device (105) adopts an electromagnetic three-way valve.

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