Projector cooling system and projector

Abstract

The utility model relates to the field of projectors, in particular to a projector cooling system and a projector, and the projector cooling system comprises a liquid cooling plate which is located at the bottom of an optical machine and abuts against the optical machine; the liquid cooling plate is provided with a liquid cooling cavity, the liquid cooling cavity communicates with two liquid pipes, the ends, away from the liquid cooling plate, of the two liquid pipes communicate, and the liquid pipes are provided with water pumps. The liquid pipe is provided with a liquid injection opening which is covered with a pipe cap; the fan is arranged at the position, corresponding to the liquid pipe, in the projector; the protection cover is arranged outside the switch in a covering manner; the control assembly comprises a connecting rod, and when the two ends of the connecting rod are connected with the protective cover and the pipe cap respectively, the connecting rod can limit opening of the protective cover; and when the connecting rod is separated from the pipe cap, the protective cover can be normally opened and closed. The projector has the effect of reducing the possibility that the projector switch is turned on when an installer or a user forgets to inject the liquid cooling agent.

Description

Technical Field

[0001] The present application relates to the field of projectors, and in particular to a projector cooling system and a projector. Background Art

[0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. With the advancement of technology, projectors are increasingly used in daily life.

[0003] With the wide application and increasing frequency of use of projectors, more and more users have higher requirements for the display effects of projectors. With the improvement of the resolution and brightness of projectors, the heat generated by the display screen and light source inside the projector also increases. The optical machine refers to the component responsible for generating and processing the light source in the projector. Whether it is a laser projector or an LED projector, the optical machine is an indispensable electronic component, and it is also the part that generates the most heat during use. Generally, the projector shell is fixed with a fan, and the heat dissipation method of using the fan to directly blow the heat dissipation element has poor thermal conductivity and has gradually failed to meet the heat dissipation needs of some projectors. As a result, liquid cooling has emerged. The liquid cooling device in the projector is prone to leakage when it is bumped during the transportation of the projector. If leakage occurs, it will greatly affect the heat dissipation effect of the projector. Some manufacturers will choose not to inject refrigerant during production, and then inject refrigerant when the transportation is completed and installed to ensure the cooling effect.

[0004] With regard to the above-mentioned related technologies, the installer may forget to add the refrigerant and directly turn on the switch of the projector, which may easily cause the refrigeration system to fail due to the lack of liquid refrigerant, and may burn the projector. Utility Model Content

[0005] In order to reduce the possibility that the installer forgets to add liquid coolant, the present application provides a projector cooling system and a projector.

[0006] The present application provides a projector cooling system and a projector, which adopt the following technical solutions:

[0007] A projector cooling system comprises a liquid cooling plate, which is located at the bottom of an optical machine and abuts against the optical machine; the liquid cooling plate is provided with a liquid cooling cavity, the liquid cooling cavity is connected with two liquid pipes, the two liquid pipes are connected at one end away from the liquid cooling plate, and the liquid pipes are provided with a water pump; the liquid pipes are provided with a liquid filling port, and the liquid filling port is provided with a pipe cap; a fan, which is arranged inside the projector at a position corresponding to the liquid pipe; a protective cover, which is arranged outside a switch; a control component, which comprises a connecting rod, when the two ends of the connecting rod are respectively connected to the protective cover and the pipe cap, the connecting rod can limit the opening of the protective cover; when the connecting rod is separated from the pipe cap, the protective cover can perform normal opening and closing actions.

[0008] By adopting the above technical solution, the liquid cooling plate absorbs the heat of the optical machine, transfers the heat to the cold row through the liquid pipe, and dissipates the heat through the cooling airflow provided by the fan. This liquid cooling system combined with air cooling can effectively reduce the operating temperature of the projector and maintain its normal operation; by setting the control component, it can remind the installer that the coolant must be injected before the projector can be started normally. This can avoid the situation where the projector overheats due to forgetting to add liquid coolant.

[0009] Optionally, a weak portion is provided on the connecting rod near the pipe cap, and the connecting rod is separated from the pipe cap after the weak portion is broken.

[0010] By adopting the above technical solution, the weak part of the connecting rod is connected to the pipe cap. The protective cover can be opened only after the weak part of the connecting rod is separated from the connecting rod. The design of the weak part makes it easier to separate the weak part from the connecting rod, and the staff can easily separate the weak part of the connecting rod without the help of external force or other tools.

[0011] Optionally, the liquid injection port is provided with a check valve, and the check valve is connected to the liquid pipe.

[0012] By adopting the above technical solution, the check valve is used to prevent the coolant from flowing back in the pipeline. When the coolant in the liquid pipe flows under the action of the water pump, the valve is in a closed state, which helps to protect the pipeline and equipment from the influence of backflow and ensures that the liquid coolant in the liquid pipe flows in the correct direction.

[0013] Optionally, the two liquid pipes are connected to a cold radiator, and the two liquid pipes are respectively connected to a water inlet and a water outlet of the cold radiator; and the fan is located on a side of the cold radiator close to a projector housing.

[0014] By adopting the above technical solution, the hot water that absorbs the heat of the optical machine flows through the radiator, and the radiator dissipates the heat to the surrounding air through the internal water channel and heat sink. A fan is set on one side of the radiator, which provides air cooling and heat dissipation, accelerates air flow, and enhances the heat dissipation effect of the radiator. Through the heat dissipation design of the radiator, the operating temperature of the projector can be effectively reduced to maintain its normal operation.

[0015] Optionally, the connecting rod is provided with a spring, and the spring applies a force to the connecting rod to approach the protective cover.

[0016] By adopting the above technical solution, the spring acts to force the connecting rod to approach the protective cover, so that the connecting rod can automatically connect with the protective cover to achieve the locking of the protective cover. At the same time, the spring gives the connecting rod a stable force to ensure the stability of the protective cover.

[0017] Optionally, two inclined surfaces are provided at one end of the connecting rod close to the protective cover, and the two inclined surfaces are inclined from two opposite side walls to the position where the two side walls are close to each other towards the direction close to the protective cover; the side walls of the protective cover can abut against the inclined surfaces during the opening and closing process of the protective cover.

[0018] By adopting the above technical solution, the function of the inclined surface is to enable the connecting rod to automatically move when the protective cover abuts against the connecting rod. The setting of the inclined surface can make the locking and releasing process of the protective cover more convenient, thereby improving the convenience of using the projector.

[0019] Optionally, the liquid injection port is located near a projector housing, and a liquid injection window is provided on the projector housing at a position corresponding to the liquid injection port. The liquid injection window is provided with a liquid injection baffle, and the liquid injection baffle is flush with the surface of the projector housing and has a smooth transition.

[0020] By adopting the above technical solution, the liquid filling port is located near the projector housing, making the liquid filling process more convenient for the installer, and the liquid filling baffle plate allows the installer to complete the liquid filling without disassembling the entire projector. The liquid filling port is arranged inside the projector through the liquid filling baffle plate, which not only ensures the beautiful appearance of the projector, but also reduces the pollution of the liquid filling port.

[0021] Optionally, a projector comprises the above-mentioned projector cooling system.

[0022] By adopting the above technical solution, the projector using the cooling system can effectively reduce the working temperature of the projector through the combination of the liquid cooling plate and the cold row and the dual heat dissipation mechanism of water cooling and air cooling. At the same time, it can remind the installer to add coolant to the liquid pipe before starting the projector, reducing the possibility of forgetting to add liquid coolant.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the design of the connecting rod and the liquid injection baffle, when the protective cover is locked with the shell, the projector switch cannot be started, which reminds the installer that they must open the liquid injection baffle and inject coolant into the liquid pipe to start the projector normally. This can avoid the situation where the projector overheats due to forgetting to add liquid coolant;

[0025] 2. The liquid cooling plate absorbs the heat generated by the optical engine and transfers the heat to the radiator through the liquid pipe. The radiator dissipates the heat into the air through the internal water channel and heat sink, and the heat is dissipated by the cooling airflow provided by the fan. This liquid cooling system combined with air cooling can effectively reduce the operating temperature of the projector and maintain its normal operation;

[0026] 3. A check valve is set in the liquid pipe. When the coolant flows under the action of the water pump, the valve will automatically close to prevent the coolant from flowing back. This helps protect the pipeline and equipment from backflow and ensures that the liquid coolant flows in the correct direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of a protruding control component of a projector cooling system according to an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of a projector cooling system protruding a liquid cooling plate and a liquid pipe in an embodiment of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Liquid cooling plate; 2. Liquid pipe; 3. Water pump; 4. Radiator; 5. Fan; 6. Liquid filling pipe; 61. Check valve; 62. Pipe cap; 7. Liquid filling baffle; 8. Protective cover; 81. Fixing groove; 9. Control assembly; 91. Connecting rod; 92. Weak part; 93. Spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0034] The embodiment of the present application discloses a projector cooling system and a projector. Figure 1-3 A projector cooling system includes a liquid cooling plate 1, which is located at the bottom of the optical machine and abuts against the lower surface of the optical machine. The liquid cooling plate 1 is provided with a liquid cooling cavity, which is arranged in an S shape inside the liquid cooling plate 1. The liquid cooling plate 1 is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both fixedly connected with a liquid pipe 2, and the two liquid pipes 2 are both connected with the liquid cooling cavity. A cold row 4 is commonly provided at one end of the two liquid pipes 2 away from the liquid cooling plate 1, and the water inlet and the water outlet of the cold row 4 are respectively connected with the two liquid pipes 2. A fan 5 is provided on one side of the cold row 4, and the fan 5 provides air cooling and heat dissipation for the cold row 4. The hot water flow that absorbs the heat of the optical machine passes through the cold row 4 through the internal water channel and heat sink, so that it dissipates heat to the surrounding air. The fan 5 accelerates the air flow, provides more cooling airflow, and enhances the heat dissipation effect of the cold row 4. The liquid pipe 2 is fixedly connected with a water pump 3, and the water pump 3 provides power for the flow of the coolant in the liquid pipe 2. The water inlet of the radiator 4 is connected to a liquid adding pipe 6, and a check valve 61 is fixedly connected to one end of the liquid adding pipe 6 near the liquid injection port. The check valve 61 can prevent the coolant from flowing back in the pipeline. When the coolant in the liquid pipe 2 flows under the action of the water pump 3, the valve will automatically close to avoid leakage of the coolant. This helps to protect the pipeline and equipment from the influence of backflow and ensure that the liquid coolant in the liquid pipe 2 flows in the correct direction. The liquid adding pipe 6 extends upward inside the projector to a position close to the top of the projector housing. The liquid adding pipe 6 is provided with a liquid injection port, and the liquid injection port is connected to the water inlet of the radiator 4. The liquid injection mask is provided with a pipe cap 62, which is threadedly connected to the liquid injection port, and a sealing ring is installed between the pipe cap 62 and the liquid injection port. The sealing ring can ensure the sealed connection between the pipe cap 62 and the liquid adding pipe 6, ensure the sealing of the liquid injection port, and reduce the possibility of leakage. A liquid injection window is provided at the position of the liquid injection port on the top shell of the projector, and a liquid injection baffle 7 is provided at the position of the liquid injection window on the projector housing. The liquid injection baffle 7 is flush with the surface of the projector housing and has a smooth transition. The liquid injection baffle 7 and the projector switch are both located on the top of the projector.

[0035] Reference Figure 2The switch cover of the projector is provided with a protective cover 8, which is hinged to the projector housing. A fixing groove 81 is provided on the side of the protective cover 8 close to the pipe cap 62. The pipe cap 62 is provided with a control component 9, which is located inside the shell of the projector housing. The control component 9 is located between the protective cover 8 and the pipe cap 62. The control component 9 includes a connecting rod 91. A sliding groove is provided at the position of the projector housing corresponding to the connecting rod 91. The end of the connecting rod 91 close to the protective cover 8 is inserted into the fixing groove 81. The end of the connecting rod 91 away from the protective cover 8 is in contact with the pipe cap 62. When the two ends of the connecting rod 91 are respectively connected to the protective cover 8 and the pipe cap 62, the connecting rod 91 can limit the opening of the protective cover 8. A weak portion 92 is provided at the position of the connecting rod 91 close to the pipe cap 62. After the weak portion 92 is broken, the connecting rod 91 is separated from the pipe cap 62, and the connecting rod 91 can slide in the sliding groove in the direction of approaching or away from the pipe cap 62. When the connecting rod 91 moves toward the pipe cap 62, the connecting rod 91 is separated from the fixing groove 81, and the protective cover 8 can be opened and closed. After the installer installs the projector, the liquid injection baffle 7 must be opened to separate the weak portion 92 of the connecting rod 91 from the connecting rod 91 before the projector can be turned on, thereby reminding the installer to inject coolant into the liquid pipe 2, reducing the possibility that the installer forgets to add liquid coolant and turns on the projector.

[0036] Reference Figure 2 The connecting rod 91 is fixed with a spring 93, which is located in the sliding groove. One end of the spring 93 is fixed to the connecting rod 91, and the other end is fixed to the side wall of the sliding groove. The spring 93 gives the connecting rod 91 a force to approach the protective cover 8. The connecting rod 91 has two inclined surfaces at one end close to the protective cover 8. The two inclined surfaces are respectively inclined from the upper side wall and the lower side wall of the connecting rod 91 to the axis of the connecting rod 91 along the length direction in the direction close to the protective cover 8, and the protective cover 8 can abut the two inclined surfaces. After the weak part 92 of the connecting rod 91 is removed, the connecting rod 91 can be used as a locking rod of the protective cover 8 to lock the protective cover 8 with the shell. When the protective cover 8 rotates away from the shell, the lower side wall of the fixed groove 81 squeezes the lower inclined surface, so that the connecting rod 91 moves away from the protective cover 8, so that the fixed groove 81 is separated from the connecting rod 91, and the protective cover 8 is released. When the protective cover 8 is closed toward the housing, the lower side wall of the protective cover 8 squeezes the upper inclined surface, causing the connecting rod 91 to move away from the protective cover 8 and be inserted into the fixing groove 81 under the action of the spring 93 to lock the protective cover 8.

[0037] Reference Figure 1 In addition, the utility model also provides a projector, including the above-mentioned projector cooling system.

[0038] The implementation principle of a projector cooling system and a projector in an embodiment of the present application is as follows: the projector will not be filled with liquid coolant when it leaves the factory. When the projector is installed, the liquid coolant is filled through the liquid filling port. In order to reduce the possibility that the installer forgets to fill the liquid coolant and turns on the projector switch, the connecting rod 91 connects the pipe cap 62 and the protective cover 8 in the initial state, thereby limiting the opening of the protective cover 8. Only after the installer opens the liquid filling baffle 7 and separates the weak part 92 of the connecting rod 91 from the connecting rod 91, the protective cover 8 can be opened. The action of opening the liquid filling baffle 7 will prompt the installer to add liquid to the liquid pipe 2, thereby serving as a prompt. After the weak part 92 of the connecting rod 91 breaks, the connecting rod 91 can continue to be used as the locking rod of the protective cover 8 to achieve automatic locking and release of the protective cover 8.

[0039] The embodiments of the present application have the effect of reducing the possibility that the installer or user forgets to add liquid coolant before turning on the projector.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A projector cooling system, characterized in that: include: A liquid cooling plate (1), the liquid cooling plate (1) being located at the bottom of the optical machine; the liquid cooling plate (1) being provided with a liquid cooling cavity, the liquid cooling cavity being connected to two liquid pipes (2), the two liquid pipes (2) being connected at one end away from the liquid cooling plate (1), the liquid pipes (2) being connected to a water pump (3); the liquid pipes (2) being connected to a liquid adding pipe (6), the liquid adding pipe (6) being covered with a pipe cap (62); A fan (5), the fan (5) being arranged inside the projector at a position corresponding to the liquid pipe (2); A protective cover (8) is arranged outside the switch; A control component (9), the control component (9) comprising a connecting rod (91), the connecting rod (91) being capable of connecting to or separating from the protective cover (8) and the pipe cap (62); when the two ends of the connecting rod (91) are respectively connected to the protective cover (8) and the pipe cap (62), the connecting rod (91) is capable of limiting the opening of the protective cover (8); when the connecting rod (91) is separated from the pipe cap (62), the protective cover (8) can be separated from the connecting rod (91), so that the protective cover (8) can perform normal opening and closing actions.

2. A projector cooling system according to claim 1, characterized in that: A weak portion (92) is provided on the connecting rod (91) near the tube cap (62), and after the weak portion (92) is broken, the connecting rod (91) is separated from the tube cap (62).

3. A projector cooling system according to claim 1, characterized in that: The liquid adding pipe (6) is provided with a check valve (61), and the check valve (61) is connected to the liquid pipe (2).

4. A projector cooling system according to claim 1, characterized in that: The two liquid pipes (2) are both connected to a cold radiator (4), and the two liquid pipes (2) are respectively connected to a water inlet and a water outlet of the cold radiator (4); the fan (5) is located on one side of the cold radiator (4).

5. A projector cooling system according to claim 1, characterized in that: The connecting rod (91) is provided with a spring (93), and the spring (93) applies a force to the connecting rod (91) to move closer to the protective cover (8).

6. A projector cooling system according to claim 5, characterized in that: The connecting rod (91) is provided with two inclined surfaces at one end close to the protective cover (8), and the two inclined surfaces are inclined from two opposite side walls to the position where the two side walls are close to each other in a direction close to the protective cover (8); the side wall of the protective cover (8) can abut against the inclined surface during the opening and closing process of the protective cover (8).

7. A projector cooling system according to claim 1, characterized in that: The tube cap (62) is located near the projector housing, and a liquid injection window is provided on the projector housing at a position corresponding to the tube cap (62). The liquid injection window is provided with a liquid injection baffle (7), and the liquid injection baffle (7) is flush with the surface of the projector housing and has a smooth transition.

8. A projector, characterized in that: A projector cooling system comprising the projector cooling system according to any one of claims 1 to 7.

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