Universal water-cooling heat dissipation system for laser projector

Abstract

The utility model discloses a universal water-cooling heat dissipation system for a laser projector, which comprises a water tank, the water tank is connected with a first water pump, the water outlet end of the first water pump is connected with a central distributor, the central distributor is provided with a plurality of water outlets, each water outlet is connected with a first water-cooling head, and the first water-cooling heads are connected in parallel. The first water-cooling heads are arranged on the water tank and tightly attached to a light source of the laser projector, the first water-cooling heads are connected with a water-cooling row assembly, a second water pump is arranged between the first water-cooling heads and the water inlet end of the water-cooling row assembly, and the water outlet end of the water-cooling row assembly is communicated with the water tank. The LED lamp has the advantage of being high in heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of projector heat dissipation devices, in particular to a universal water-cooling heat dissipation system for laser projectors. Background Art

[0002] With the development of projection technology, projector applications have covered various areas of people's lives, such as consumption, work, and study. Among them, advanced laser projection has been welcomed by consumers due to its brightness, operating life, and excellent color effects. However, with the development of technology, especially the advancement of DLP projection technology, the performance requirements for laser projection are becoming more and more stringent, and more and more new problems have emerged.

[0003] Heat dissipation is undoubtedly a key factor in whether laser projectors can operate efficiently for a long time. Due to the high power characteristics of laser projection equipment, ordinary air cooling cannot suppress its extremely high heat generation. Therefore, water cooling has become the main heat dissipation method for laser projectors. However, the current laser projector water cooling system still has some shortcomings:

[0004] 1) The existing laser projector water cooling system usually uses a single water cooling pipe and water cooling head. Due to the uneven heat generation at each location, the scheduling and allocation of water cooling resources is not reasonable, and the coverage area is small, it is difficult to solve the problem of local overheating, and the heat dissipation effect is not ideal.

[0005] 2) The water pressure of a single water-cooling pipeline is usually relatively high, and the high temperature and high pressure operating environment is prone to leakage. Once leakage occurs, the cooling system will be paralyzed and the heating elements of the laser projection equipment will be damaged.

[0006] 3) In conventional water-cooling solutions for laser projectors, only one water pump is usually provided. After the water flows through the water-cooling head or the radiator, the water pressure drops significantly, resulting in a slow reflux speed, which seriously affects the heat dissipation effect.

[0007] 4) Conventional laser projector water cooling solutions usually have a cold row, but the cold row is easy to get clogged. Once the cold row is clogged, the water pressure will increase sharply, causing the pipe to burst, further paralyzing the cooling system and damaging the heating elements of the laser projection equipment.

[0008] Therefore, it is necessary to further improve and perfect the prior art to overcome these deficiencies, and the present invention is made based on this situation. Utility Model Content

[0009] The utility model aims to overcome the deficiencies of the prior art and provide a universal water-cooling heat dissipation system for laser projectors with high heat dissipation efficiency.

[0010] The utility model is realized by the following technical solutions:

[0011] In order to solve the above technical problems, the utility model provides a universal water-cooling heat dissipation system for a laser projector, including a water tank, the water tank is connected to a first water pump, the water outlet of the first water pump is connected to a central distributor, the central distributor is provided with a plurality of water outlets, each water outlet is connected to a first water cooling head, each first water cooling head is connected in parallel with each other, and each first water cooling head is closely attached to the light source of the laser projector, the first water cooling head is connected to a water cooling row assembly, and a second water pump is provided between the first water cooling head and the water inlet of the water cooling row assembly, and the water outlet of the water cooling row assembly is connected to the water tank.

[0012] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling heat dissipation system for a laser projector, wherein the water-cooling row assembly includes a first water-cooling row and a second water-cooling row connected in series, and a third water pump for connecting the two is provided between the water outlet end of the first water-cooling row and the water inlet end of the second water-cooling row.

[0013] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling heat dissipation system for a laser projector, wherein the water tank is connected to a fourth water pump, the water outlet of the fourth water pump is connected to a plurality of second water-cooling heads, and each second water-cooling head is tightly attached to the outer casing at the lens of the laser projector, and the second water-cooling head is connected to the water inlet of the first water-cooling row.

[0014] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling heat dissipation system for a laser projector, in which a first water-cooling radiator and a second water-cooling radiator are arranged in parallel and placed on one side of the laser projector, a plurality of first cooling fans are arranged between the first water-cooling radiator and the second water-cooling radiator, and a plurality of second cooling fans are arranged between the second water-cooling radiator and the laser projector.

[0015] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling and heat dissipation system for a laser projector, wherein a distributor pressure relief valve capable of connecting the central distributor and the water tank is provided between the central distributor and the water tank.

[0016] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling heat dissipation system for a laser projector, wherein the second water pump is connected to a first load detection device, and a first water-cooling pressure relief valve connecting the second water pump and the water inlet end of the first water-cooling row and capable of being connected to a water tank is provided between the two.

[0017] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling heat dissipation system for a laser projector, wherein the third water pump is connected to a second load detection device, and a second water-cooling pressure relief valve connecting the third water pump and the second water-cooling row is provided between the water inlet ends thereof and can be connected to a water tank.

[0018] In order to further solve the technical problem to be solved by the utility model, in a universal water-cooling heat dissipation system for a laser projector provided by the utility model, a secondary circulation valve body connecting the second water-cooling head and the water inlet end of the first water-cooling row is provided, which can control the valve port size and can be connected to a water tank.

[0019] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling heat dissipation system for a laser projector, wherein the outer surface of the first water-cooling head is provided with a plurality of heat dissipation protrusions.

[0020] In order to further solve the technical problem to be solved by the utility model, the utility model provides a universal water-cooling heat dissipation system for a laser projector, which also includes a plurality of heat dissipation fins attached to the outer shell of the laser projector.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] 1. The utility model designs a central distributor on the main circulation water circuit, and the central distributor is connected to a plurality of first water cooling heads, each of which is tightly fitted on the surface of the laser projector light source. This design can ensure that the laser projector light source part is fully cooled, thereby improving the cooling efficiency. In addition, the first water cooling heads are connected in parallel with each other and do not affect each other during heat dissipation. Each first water cooling head can function independently, thereby realizing multi-channel cooling, which greatly improves the efficiency of the entire cooling system.

[0023] 2. The utility model is designed with two circulating water circuits: the main circulating water circuit and the secondary circulating water circuit. The light source part and the lens part of the laser projector can be cooled respectively. The two circulating water circuits are combined with each other, which can greatly increase the heat dissipation efficiency and reduce the failure rate.

[0024] 3. The utility model designs a plurality of water pumps on the circulating water circuit. The combined use of these water pumps can greatly increase the cooling liquid reflux speed, thereby increasing the heat dissipation efficiency.

[0025] 4. The utility model is provided with pressure relief valves at the central distributor, the first water-cooling row and the second water-cooling row, which can avoid pipe rupture, coolant leakage and component damage caused by blockage problems, and increase stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 It is an exploded schematic diagram of the utility model;

[0029] Figure 3 is a schematic diagram of the three-dimensional structure of the first water cooling head;

[0030] Figure 4 It is a three-dimensional structural diagram of the laser projector, the second water cooling head and the heat dissipation fins;

[0031] Figure 5 It is a schematic diagram of the circulating water circuit and the air duct of the utility model. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figures 1 to 5 A universal water-cooling heat dissipation system for a laser projector is shown, comprising two circulating water circuits: a main circulating water circuit and a secondary circulating water circuit. The main circulating water circuit is: water tank 1 → first water pump 2 → central distributor 3 → multiple parallel first water cooling heads 4 → second water pump 6 → water cooling row assembly 5 (first water cooling row 51 → third water pump 53 → second water cooling row 52) → backflow to the water tank 1. The main circulating water circuit is mainly responsible for the heat dissipation of the laser light source part of the laser projector. The coolant is evenly distributed to each first water cooling head 4 through the central distributor 3, directly contacting the outer shell at the laser light source for heat dissipation, and the heat is quickly discharged through the second water pump 6 and the efficient water cooling row assembly 5. This design can efficiently dissipate heat for the most core and heat-generating part of the laser projector, ensuring the stable operation of the laser projector.

[0034] The secondary circulation water circuit is: water tank 1 → fourth water pump 7 → second water cooling head 8 → water cooling row assembly 5 (first water cooling row 51 → third water pump 53 → second water cooling row 52) → back to the water tank 1. This secondary circulation water circuit is mainly responsible for the heat dissipation of the lens part of the laser projector. The coolant is sent to the second water cooling head 8 through the fourth water pump 7, and the outer shell at the contact lens is dissipated, and the heat is discharged through the water cooling row assembly 5. This design can effectively solve the heat dissipation problem of the laser projector lens part and improve the use effect and life of the laser projector.

[0035] The following is a detailed explanation.

[0036] The main circulating water circuit is a well-designed system, which includes a water tank 1, which is connected to a first water pump 2. The first water pump 2 draws water from the water tank and distributes it through a central distributor 3 connected to the water outlet. The central distributor 3 is provided with a plurality of water outlets 31, each of which is connected to a first water cooling head 4. These first water cooling heads 4 are connected together in parallel to form a powerful heat dissipation system. The central distributor 3 can evenly distribute the coolant to each first water cooling head 4, thereby improving the heat dissipation efficiency.

[0037] The light source part of the laser projector is the main heat dissipation target of the main circulation water circuit. Since the light source part generates a lot of heat when working, it is difficult for a single water cooling head to effectively suppress it. Therefore, the utility model designs a central distributor 3, and the central distributor 3 is connected to a plurality of first water cooling heads 4, each of which fits tightly on each surface of the laser projector light source. This design can ensure that the light source part of the laser projector is omnidirectionally cooled, thereby improving the heat dissipation efficiency.

[0038] In addition, the first water-cooling heads 4 connected in parallel do not affect each other during heat dissipation, and each first water-cooling head 4 can function independently, thereby realizing multi-path cooling, which greatly improves the efficiency of the entire heat dissipation system.

[0039] These first water cooling heads 4 are finally connected to the water cooling row assembly 5 (the same water cooling row assembly 5), and a second water pump 6 is installed therebetween. The second water pump 6 can provide a strong circulation power, thereby accelerating the flow speed of the coolant and further improving the heat dissipation efficiency. In addition, the second water pump 6 can also ensure the uniform distribution of the coolant between each first water cooling head 4 and the water cooling row assembly 5, thereby ensuring that all first water cooling heads 4 can obtain sufficient cooling effect.

[0040] In order to ensure the safety and reliability of the system, the above-mentioned components are connected by hoses.

[0041] More specifically, a distributor pressure relief valve 32 is provided between the central distributor 3 and the water tank 1 to connect the two. According to different structures, the distributor pressure relief valve 32 can use a spring-type pressure switch valve or an electromagnetically controlled pressure switch valve. This design is to prevent the pressure of the central pipeline between the first water pump 2 and the central distributor 3 from being too high. During the use of the laser projector, if the pressure of the central pipeline is too high, it may damage the pipeline and affect the normal operation of the equipment. The added distributor pressure relief valve 32 can return excess coolant to the water tank 1 when the pressure is too high, thereby avoiding the problem of pipeline rupture caused by excessive pipeline pressure. This design not only ensures the normal operation of the equipment, but also reduces maintenance costs and time. At the same time, the design of the distributor pressure relief valve 32 also makes the entire main circulation water circuit more stable and reliable, and improves the efficiency of the entire system.

[0042] More specifically, if Figure 1 , Figure 2 , Figure 5 As shown, the water-cooling radiator assembly 5 includes a first water-cooling radiator 51 and a second water-cooling radiator 52 connected in series. The first water-cooling radiator 51 and the second water-cooling radiator 52 are both provided with heat dissipation fins and capillaries. Such a design enables the two series-connected radiators to have a stronger heat dissipation capacity. The coolant flowing from the first water-cooling head 4 and the second water-cooling head 8 passes through the first water-cooling radiator 51 and the second water-cooling radiator 52 in turn, and performs two heat dissipations to fully dissipate the heat.

[0043] At the same time, if Figure 5 As shown, the first water-cooling row 51 and the second water-cooling row 52 are arranged in parallel and placed on one side of the laser projector, and a plurality of first cooling fans 54 are arranged between the two. A plurality of second cooling fans 55 are also arranged between the second water-cooling row 52 and the laser projector. The air suction side of the second cooling fan 55 faces the laser projector housing, the first water-cooling head 4 and the second water-cooling head 8, and can absorb the heat from the laser projector housing, the first water-cooling head 4 and the second water-cooling head 8, and can also blow the heat from the second water-cooling row 52 to the first cooling fan 54. The first cooling fan 54 absorbs the heat from the second water-cooling row 52, ​​and blows it out together with the heat from the first water-cooling row 51. Such a fan arrangement can form an efficient heat dissipation duct and improve the heat dissipation efficiency.

[0044] More specifically, a third water pump 53 is provided between the water outlet of the first water-cooling row 51 and the water inlet of the second water-cooling row 52 to connect the two. The third water pump 53 further increases the reflux speed and improves the heat dissipation efficiency. The third water pump 53 pumps the coolant so that the coolant can flow quickly from the first water-cooling row 51 to the second water-cooling row 52, ​​ensuring the reflux speed, thereby ensuring the maximum cooling effect.

[0045] More specifically, the second water pump 6 is connected to a first load detection device 61, which is used to detect the overload of the second water pump 6, so as to determine whether the first water cooling row 51 is blocked. Specifically, the first load detection device 61 is preferably a device for detecting current, and can determine whether it is overloaded by monitoring the current change of the second water pump 6. When the second water pump 6 is overloaded, the first load detection device 61 will transmit the detection information to the control system, and the control system will determine that the first water cooling row 51 is blocked. In order to solve this problem, a first cold discharge pressure relief valve 62 connecting the second water pump 6 and the first water cooling row 51 and connected to the water tank 1 is provided between the water inlet ends. According to different structures, the first cold discharge pressure relief valve 62 can be selected from a spring pressure switch valve or an electromagnetically controlled pressure switch valve. When the control system determines that the first water cooling row 51 is blocked, it will automatically open the first cold discharge pressure relief valve 62, so that the coolant at the outlet of the second water pump 6 directly flows back to the water tank 1, which can avoid damage to the second water pump 6 or the pipeline. At the same time, this design also avoids equipment failure and maintenance costs caused by blockage.

[0046] Similarly, the third water pump 53 is connected to a second load detection device 531, which is used to detect the overload of the third water pump 53. When the second load detection device 531 detects that the third water pump 53 is overloaded, it will transmit the detection information to the control system, and the control system will determine that the second water-cooling row 52 is blocked. In order to solve this problem, a second cold discharge pressure relief valve 532 connecting the third water pump 53 and the second water-cooling row 52 and connected to the water tank 1 is provided between the water inlet ends. According to different structures, the second cold discharge pressure relief valve 532 can be selected as a spring pressure switch valve or an electromagnetic control pressure switch valve. When the control system determines that the water inlet end of the second water-cooling row 52 is blocked, it will automatically open the second cold discharge pressure relief valve 532, so that the coolant at the outlet of the third water pump 53 directly flows back to the water tank 1, which can avoid damaging the third water pump 53 or the pipeline. At the same time, this design also ensures the circulation efficiency of the coolant and improves the cooling effect of the entire water-cooling row assembly 5.

[0047] More specifically, Figure 3 As shown, the outer surface of the first water cooling head 4 is provided with a plurality of heat dissipation protrusions 41. The heat dissipation protrusions 41 can increase the heat dissipation area and increase the heat dissipation speed.

[0048] The secondary circulating water circuit also includes a water tank 1 (sharing the same water tank as the main circulating water circuit), the water tank 1 is connected to a fourth water pump 7, the water outlet of the fourth water pump 7 is connected to a plurality of second water cooling heads 8, and each second water cooling head 8 is closely attached to the outer shell of the lens of the laser projector, and the second water cooling head 8 is connected to the water inlet of the first water cooling row 51. The internal lens of the laser projector will generate heat during operation, and the shell will absorb the heat radiated by the optical lens. Therefore, it is very necessary to dissipate the heat from the outer shell at the lens. The utility model designs a separate secondary circulating water circuit to dissipate heat at the lens. The secondary circulating water circuit is independent of the main circulating water circuit, can avoid the heat influence of the main circulating water circuit, and increase the heat dissipation effect at the lens.

[0049] More specifically, a secondary circulation valve body 81 is provided between the water inlet end of the second water cooling head 8 and the first water cooling row 51, which connects the two and can control the valve opening size and can be connected to the water tank 1. When the first water cooling row 51 is blocked, the secondary circulation valve body 81 can be directly connected to the water tank 1, which can avoid the pipeline from being broken due to excessive pressure. In addition, the fourth water pump 7 can adjust the power by itself, and the secondary circulation valve body 81 can detect the water pressure by itself, and can adjust the valve opening size according to the water pressure, thereby adjusting the flow rate of the coolant entering the first water cooling row 51.

[0050] More specifically, it also includes a plurality of heat dissipation fins 9 (also called heat dissipation fins) attached to the outer shell of the laser projector. The heat dissipation fins 9 can increase the heat dissipation area and increase the heat dissipation speed.

[0051] The utility model designs two circulating water circuits: a main circulating water circuit and a secondary circulating water circuit, which can respectively dissipate heat for the light source part and the lens part of the laser projector. The two circulating water circuits are combined with each other, which can greatly increase the heat dissipation efficiency and reduce the failure rate.

[0052] The utility model designs a plurality of water pumps on the circulating water circuit, and these water pumps are used in combination to greatly increase the cooling liquid reflux speed, thereby increasing the heat dissipation efficiency.

[0053] The utility model is provided with pressure relief valves at the central distributor 3, the first water-cooling row 51 and the second water-cooling row 52, ​​which can avoid pipeline rupture, coolant leakage and component damage caused by blockage problems, and increase stability and safety.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A universal water cooling system for laser projectors, characterized in that: The invention comprises a water tank (1), wherein the water tank (1) is connected to a first water pump (2), the water outlet of the first water pump (2) is connected to a central distributor (3), the central distributor (3) is provided with a plurality of water outlets (31), each water outlet (31) is connected to a first water cooling head (4), each first water cooling head (4) is connected in parallel with each other, and each first water cooling head (4) is closely attached to the light source of the laser projector, the first water cooling head (4) is connected to a water cooling radiator assembly (5), and a second water pump (6) is provided between the first water cooling head (4) and the water inlet of the water cooling radiator assembly (5), and the water outlet of the water cooling radiator assembly (5) is connected to the water tank (1).

2. The universal water cooling system for laser projectors according to claim 1, characterized in that: The water-cooling radiator assembly (5) comprises a first water-cooling radiator (51) and a second water-cooling radiator (52) which are connected in series, and a third water pump (53) for connecting the water outlet end of the first water-cooling radiator (51) and the water inlet end of the second water-cooling radiator (52) is provided between the two.

3. The universal water cooling system for laser projectors according to claim 2, characterized in that: The first water-cooling radiator (51) and the second water-cooling radiator (52) are arranged in parallel and placed on one side of the laser projector; a plurality of first cooling fans (54) are arranged between the first water-cooling radiator (51) and the second water-cooling radiator (52); and a plurality of second cooling fans (55) are arranged between the second water-cooling radiator (52) and the laser projector.

4. The universal water cooling system for laser projectors according to claim 2, characterized in that: The water tank (1) is connected to a fourth water pump (7), the water outlet of the fourth water pump (7) is connected to a plurality of second water cooling heads (8), and each second water cooling head (8) is closely attached to the outer shell of the lens of the laser projector, and the second water cooling heads (8) are connected to the water inlet of the first water cooling row (51).

5. The universal water cooling system for laser projectors according to claim 1, characterized in that: A distributor pressure relief valve (32) is provided between the central distributor (3) and the water tank (1) to connect the two.

6. The universal water cooling system for laser projectors according to claim 2, characterized in that: The second water pump (6) is connected to a first load detection device (61), and a first water-cooling discharge pressure relief valve (62) is provided between the second water pump (6) and the water inlet end of the first water-cooling discharge (51), connecting the two and being able to communicate with the water tank (1).

7. The universal water cooling system for laser projectors according to claim 2, characterized in that: The third water pump (53) is connected to a second load detection device (531), and a second water-cooling discharge pressure relief valve (532) is provided between the third water pump (53) and the water inlet end of the second water-cooling discharge (52), connecting the two and being able to communicate with the water tank (1).

8. The universal water cooling system for laser projectors according to claim 4, characterized in that: A secondary circulation valve body (81) is provided between the second water cooling head (8) and the water inlet end of the first water cooling row (51), which connects the two and can control the size of the valve opening and can be connected to the water tank (1).

9. The universal water cooling system for laser projectors according to claim 1, characterized in that: The outer surface of the first water cooling head (4) is provided with a plurality of heat dissipation protrusions (41).

10. The universal water cooling system for laser projectors according to claim 1, characterized in that: It also includes a plurality of heat dissipation fins (9) attached to the outer shell of the laser projector.

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