Projection equipment and projection system

Abstract

The utility model provides a projection device and a projection system, and relates to the technical field of projection. The heat dissipation module comprises a heat dissipation piece, a driving piece and a liquid cooling piece, the heat dissipation module is provided with a flow channel, and part of the flow channel is located in the heat dissipation piece; the driving part is used for driving the cooling liquid in the flow channel to flow, so that the cooling liquid flows through the liquid cooling part; a plurality of heat dissipation modules are arranged, and the plurality of heat dissipation modules are connected in series, so that the cooling liquid circularly flows among the flow channels of the plurality of heat dissipation modules; and the plurality of liquid cooling pieces are in geothermal conduction with the plurality of heating pieces in a one-to-one correspondence manner, and the liquid cooling pieces are used for absorbing heat of the heating pieces. According to the projection equipment and the projection system provided by the invention, the heat dissipation efficiency of the heat dissipation module is high, and a plurality of heating elements can be rapidly cooled at the same time.

Description

Technical Field

[0001] The present application relates to the field of projection technology, and in particular to a projection device and a projection system. Background Art

[0002] Laser TV is a type of laser projection equipment. As the brightness of laser TV products becomes higher and higher, the need and requirements for heat dissipation become higher and higher; air cooling cannot meet the heat dissipation needs of some high-brightness laser TVs, and liquid cooling has begun to be applied to laser TV products.

[0003] In the prior art, a liquid cooling module is installed in the projection device and is thermally connected to the heating element in the projection device. When the cooling liquid flows in the liquid cooling module, it can take away the heat of the heating element, thereby cooling the heating element.

[0004] However, the liquid cooling heat dissipation module in the prior art has low heat dissipation efficiency and cannot quickly cool multiple heat generating components in the projection device at the same time. Utility Model Content

[0005] In view of the above problems, the present application provides a projection device and a projection system. The heat dissipation module in the projection device has high heat dissipation efficiency and can quickly cool multiple heat-generating components at the same time.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A first aspect of the present application provides a projection device, comprising:

[0008] Heating element;

[0009] The heat dissipation module comprises a heat dissipation element, a driving element and a liquid cooling element. The heat dissipation module has a flow channel, part of which is located inside the heat dissipation element. The driving element is used to drive the coolant in the flow channel to flow so that the coolant flows through the liquid cooling element.

[0010] There are multiple heat dissipation modules, which are arranged in series with each other so that the coolant circulates between the flow channels of the multiple heat dissipation modules; there are multiple heat-generating elements, which are thermally connected with the multiple heat-generating elements in a one-to-one correspondence, and the liquid cooling elements are used to absorb the heat of the heat-generating elements.

[0011] The beneficial effects of the present application are: the liquid cooling parts in each heat dissipation module can absorb the heat of the heating parts, and each heat dissipation module can share the cooling liquid. When the cooling liquid circulates between the flow channels of multiple heat dissipation modules, the cooling liquid can take away the heat of each liquid cooling part; in addition, the driving parts in each heat dissipation module can drive the flow of the cooling liquid in the flow channel, ensuring the sufficient transmission of the cooling liquid between each heat dissipation module; the heat dissipation parts in each heat dissipation module can dissipate the heat of the cooling liquid, ensuring the sufficient cooling of the cooling liquid in the heat dissipation module. Therefore, each heat dissipation module cooperates with each other, which can improve the cooling efficiency of the heating parts, and can quickly cool multiple heating parts in the projection device at the same time.

[0012] In a possible implementation, the plurality of heat dissipation modules are all integrated heat dissipation modules, and the heat dissipation components, the driving components, and the liquid cooling components are integrally arranged.

[0013] In this way, the integrated heat dissipation module has a simple structure and occupies a small space; when all heat dissipation modules are integrated heat dissipation modules and installed inside the projection device, the internal space utilization rate of the projection device is higher and the overall volume is smaller.

[0014] In a possible implementation, the plurality of heat dissipation modules are all split heat dissipation modules, and the heat dissipation components and the liquid cooling components are separately arranged.

[0015] In this way, the position of the liquid cooling component is easier to adjust, so as to adapt to different working scenarios; in addition, after increasing the volume of the heat sink, it is convenient to improve the heat dissipation efficiency of the split heat dissipation module.

[0016] In a possible implementation, the plurality of heat dissipation modules include at least one integrated heat dissipation module and at least one split heat dissipation module;

[0017] The heat sink, drive unit and liquid cooling unit in the integrated heat dissipation module are integrated into one unit;

[0018] The heat sink and liquid cooling components in the split heat dissipation module are arranged separately.

[0019] In this way, the integrated heat dissipation module and the split heat dissipation module cooperate with each other, which can ensure the heat dissipation efficiency of the heating element while making the structure of the projection device more compact.

[0020] In a possible implementation, the projection device further includes a connecting pipe; a plurality of heat dissipation modules are connected to each other through the connecting pipe, and / or a heat dissipation element and a liquid cooling element in a split heat dissipation module are connected to each other through the connecting pipe.

[0021] In this way, the existence of the connecting pipe facilitates the flow of the coolant between the multiple heat dissipation modules and facilitates the flow of the coolant between the heat dissipation element and the liquid cooling element.

[0022] In a possible implementation, the heat dissipation element includes a radiator and a fan, the fan is installed on the radiator, the radiator includes a plurality of heat dissipation pipes arranged at intervals, and some flow channels are located in the heat dissipation pipes; the fan is used to provide wind flow passing through the surface of the heat dissipation pipes.

[0023] In this way, when the coolant flows through the heat pipe, the wind flow generated by the fan can take away the heat on the surface of the heat pipe, thereby achieving rapid cooling of the coolant.

[0024] In a possible implementation, the liquid cooling element is a plate element, part of the flow channel is located inside the liquid cooling element, and the flow channel in the liquid cooling element is connected to the flow channel in the heat dissipation pipe;

[0025] A side surface of the liquid cooling element facing away from the heat dissipation element abuts against the heat dissipation element.

[0026] In this way, after one side plate surface of the liquid cooling component abuts against the heating component, it is convenient for the heating component to transfer heat to the liquid cooling component.

[0027] In a possible implementation, the projection device further includes a temperature detection element and a control element. The temperature detection element, the driving element, the fan and the temperature detection element are all electrically connected to the control element. The temperature detection element is used to detect the temperature of the heating element.

[0028] In this way, through the detected temperature data, the control component can control the real-time power of the fan and the driving component when they are working, so as to better dissipate heat and cool the heat-generating component.

[0029] A second aspect of the present application provides a projection device, comprising:

[0030] Heating element;

[0031] A heat dissipation module, wherein the heat dissipation element of the heat dissipation module is used to accommodate a part of the flow channel of the heat dissipation module, and the driving element of the heat dissipation module is used to drive the coolant in the flow channel to flow so that the coolant flows through the liquid cooling element of the heat dissipation module;

[0032] Multiple heat dissipation modules are used to be connected in series so that the coolant circulates between the flow channels of the multiple heat dissipation modules; multiple liquid cooling components are used to be thermally connected to multiple heating components in a one-to-one correspondence, and the liquid cooling components are used to absorb the heat of the heating components.

[0033] A third aspect of the present application provides a projection system, comprising a projection screen and a projection device in any one of the above implementations, wherein the projection device is used to project a projection picture onto the projection screen.

[0034] In the projection device provided by the present application, multiple heat dissipation modules are arranged in series with each other, and the liquid cooling parts in each heat dissipation module can absorb the heat of the heating part, and each heat dissipation module can share the cooling liquid. When the cooling liquid circulates between the flow channels of multiple heat dissipation modules, the cooling liquid can take away the heat of each liquid cooling part; in addition, the driving parts in each heat dissipation module can drive the flow of the cooling liquid in the flow channel, ensuring the sufficient transmission of the cooling liquid between each heat dissipation module; the heat dissipation parts in each heat dissipation module can dissipate the cooling liquid, ensuring the sufficient cooling of the cooling liquid in the heat dissipation module. Thus, each heat dissipation module cooperates with each other, which can improve the cooling efficiency of the heating part, and can quickly cool multiple heating parts in the projection device at the same time. In addition, the integrated heat dissipation module and the split heat dissipation module cooperate with each other, while ensuring the heat dissipation efficiency of the heating part, it can also make the structure of the projection device more compact. At the same time, the number of integrated heat dissipation modules and split heat dissipation modules can be flexibly selected according to the structure of the projection device to meet the design requirements of different projection devices.

[0035] The structure of the present application and its other inventive objectives and beneficial effects will be more clearly understood through the description of the specific implementation methods in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A three-dimensional diagram of a heat dissipation module provided in an embodiment of the present application;

[0038] Figure 2 A front view of the heat dissipation module provided in an embodiment of the present application;

[0039] Figure 3 A top view of the heat dissipation module provided in an embodiment of the present application;

[0040] Figure 4 An assembly diagram of a heat dissipation module and multiple heating elements provided in an embodiment of the present application;

[0041] Figure 5 A three-dimensional diagram of an integrated heat dissipation module provided in an embodiment of the present application;

[0042] Figure 6 for Figure 5 Magnified view at A in the middle;

[0043] Figure 7A three-dimensional diagram of a split heat dissipation module provided in an embodiment of the present application;

[0044] Figure 8 Another stereoscopic view of the heat dissipation module provided in an embodiment of the present application;

[0045] Fig. 9 Another stereoscopic diagram of the heat dissipation module provided in the embodiment of the present application;

[0046] Fig.10 Another stereoscopic view of the heat dissipation module provided in the embodiment of the present application.

[0047] Description of reference numerals:

[0048] 100-heating element; 200-heat dissipation module; 210-heat dissipation element; 211-radiator; 211A-heat dissipation pipe; 211B-heat dissipation fin; 211C-end pipe; 212-fan; 220-driving element; 230-liquid cooling element; 240-water tank; 200A-integrated heat dissipation module; 200B-split heat dissipation module; 300-connecting pipe. DETAILED DESCRIPTION

[0049] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0050] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0051] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0052] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0054] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] The projection device has a heating element, which may be a DMD (Digital Micromirror Device), a laser or other electronic device, which generates heat during operation. In the prior art, a liquid cooling heat dissipation module is often provided in the projection device, and the liquid cooling heat dissipation module can be thermally connected to the heating element, and the coolant can take away the heat of the heating element when flowing in the liquid cooling heat dissipation module, thereby cooling the heating element. However, the heat dissipation efficiency of the heat dissipation module in the prior art is low. When there are multiple heating elements in the projection device, the heat dissipation module cannot quickly cool the multiple heating elements in the projection device at the same time.

[0057] Based on the above problems, the present application provides a projection device and a projection system, wherein the projection device includes a heating element and a heat dissipation module, wherein the heat dissipation module includes a heat dissipation element, a driving element and a liquid cooling element, and the heat dissipation module has a flow channel, part of which is located inside the heat dissipation element; the driving element is used to drive the coolant in the flow channel to flow so that the coolant flows through the liquid cooling element; in addition, the heat dissipation module is provided with multiple heat dissipation modules, and the multiple heat dissipation modules are arranged in series with each other; the multiple liquid cooling elements are thermally connected with the multiple heating elements in a one-to-one correspondence. The liquid cooling element in each heat dissipation module can absorb the heat of the heat dissipation element, the heat dissipation element in each heat dissipation module can dissipate the coolant in the flow channel, and the driving element in each heat dissipation module can drive the coolant to flow in the flow channel; and after the multiple heat dissipation modules are arranged in series with each other, the coolant can circulate between the flow channels of the heat dissipation modules; thus, the various heat dissipation modules cooperate with each other to improve the cooling efficiency of the heating element, and can quickly cool multiple heating elements in the projection device at the same time.

[0058] The following combination Figures 1 to 10 , the structure of the projection device provided in the embodiment of the present application is described in detail.

[0059] The projection device provided in the embodiment of the present application includes:

[0060] like Figures 1 to 4 As shown, the projection device provided in this application may be a laser TV host, a laser projector and other devices, and the projection device includes:

[0061] The heating element 100 generates heat during operation; specifically, the heating element 100 may be an electronic device such as a DMD or a laser of a projection device.

[0062] The heat dissipation module 200 includes a heat dissipation element 210, a driving element 220, and a liquid cooling element 230. The heat dissipation module 200 has a flow channel, part of which is located inside the heat dissipation element 210; the driving element 220 is used to drive the coolant in the flow channel to flow so that the coolant flows through the liquid cooling element 230. When the coolant flows in the flow channel located in the heat dissipation element 210, the heat dissipation element 210 can cool the coolant; when the coolant flows through the liquid cooling element 230, the coolant can take away the heat on the liquid cooling element 230. Specifically, the driving element 220 can be a driving pump.

[0063] There are multiple heat dissipation modules 200, and the multiple heat dissipation modules 200 are arranged in series so that the coolant circulates between the flow channels of the multiple heat dissipation modules 200; thus, each heat dissipation module 200 can share the coolant, and when the coolant circulates between the flow channels of the multiple heat dissipation modules 200, the coolant can take away the heat of each liquid cooling component 230, and each heat dissipation component 210 can cool the coolant to maintain a relatively low temperature. In addition, there are multiple heat dissipation components 100, and the multiple liquid cooling components 230 are thermally connected with the multiple heat dissipation components 100 in a one-to-one correspondence, and the liquid cooling components 230 are used to absorb the heat of the heat dissipation components 100. Thus, each heat dissipation component 100 is provided with a heat dissipation module 200 to cool it, and the heat dissipation components 210, the driving components 220 and the liquid cooling components 230 in each heat dissipation module 200 cooperate with each other to improve the heat dissipation efficiency of the heat dissipation component 100; multiple heat dissipation components cooperate with each other to cool multiple heat dissipation components 100 at the same time.

[0064] In the projection device provided by the present application, multiple heat dissipation modules 200 are arranged in series with each other, and the liquid cooling element 230 in each heat dissipation module 200 can absorb the heat of the heating element 100, and each heat dissipation module 200 can share the cooling liquid. When the cooling liquid circulates between the flow channels of multiple heat dissipation modules 200, the cooling liquid can take away the heat of each liquid cooling element 230; in addition, the driving element 220 in each heat dissipation module 200 can drive the cooling liquid to flow in the flow channel, ensuring the sufficient transmission of the cooling liquid between each heat dissipation module 200; the heat dissipation element 210 in each heat dissipation module 200 can dissipate the cooling liquid, ensuring the sufficient cooling of the cooling liquid in the heat dissipation module 200. Therefore, each heat dissipation module 200 cooperates with each other, can improve the cooling efficiency of the heating element 100, and can quickly cool multiple heating elements 100 in the projection device at the same time.

[0065] It should be noted that when the temperature of one of the multiple heating elements 100 suddenly rises, the coolant in the heat dissipation module 200 matching the heating element 100 can absorb the heat of the heating element 100, and the coolant can flow through each heat dissipation module 200 after absorbing the heat. Each heat dissipation module 200 can cooperate with each other to dissipate the heat of the coolant to quickly reduce the temperature of the coolant, thereby ensuring that the temperature of the coolant can be maintained at a low level, thereby being able to continuously and quickly cool the heating element 100 and ensure the normal operation of the projection equipment.

[0066] In a specific embodiment, Fig. 9As shown, the plurality of heat dissipation modules 200 are all integrated heat dissipation modules 200A, and the heat dissipation element 210, the driving element 220 and the liquid cooling element 230 are arranged in an integrated manner; at this time, the heat dissipation element 210, the driving element 220 and the liquid cooling element 230 are directly connected, and there is no intermediate water pipe for connection. With such arrangement, the structure of the integrated heat dissipation module 200A is simplified and occupies a small space; when the heat dissipation modules 200 are all integrated heat dissipation modules 200A and are installed inside the projection device, the internal space utilization rate of the projection device is higher and the overall volume is smaller.

[0067] In another specific embodiment, Fig.10 As shown, the plurality of heat dissipation modules 200 are all split heat dissipation modules 200B, and the heat dissipation element 210 and the liquid cooling element 230 are arranged separately; at this time, the heat dissipation element 210 and the liquid cooling element 230 are not directly connected, but are connected via a water pipe. With such an arrangement, the position of the liquid cooling element 230 is easier to adjust, so as to adapt to different working scenes; in addition, in the split heat dissipation module 200B, after increasing the volume of the heat dissipation element 210, it is convenient to improve the heat dissipation efficiency of the split heat dissipation module 200B.

[0068] In another specific embodiment, Figure 1 and Figure 8 As shown, the plurality of heat dissipation modules 200 include at least one integrated heat dissipation module 200A and at least one split heat dissipation module 200B; as described in the above embodiment, the heat dissipation element 210, the driving element 220 and the liquid cooling element 230 in the integrated heat dissipation module 200A are integrally arranged, and the heat dissipation element 210 and the liquid cooling element 230 in the split heat dissipation module 200B are separately arranged. Figure 1 As shown, the plurality of heat dissipation modules 200 include an integrated heat dissipation module 200A and a split heat dissipation module 200B arranged in series; or Figure 8 As shown, the plurality of heat dissipation modules 200 include two integrated heat dissipation modules 200A and one split heat dissipation module 200B arranged in series. In this arrangement, the integrated heat dissipation module 200A and the split heat dissipation module 200B cooperate with each other, while ensuring the heat dissipation efficiency of the heating element 100, the structure of the projection device can also be made more compact.

[0069] It should be noted that the number of integrated heat dissipation modules 200A and split heat dissipation modules 200B can be flexibly selected according to the actual usage scenario; for example, when the projection device requires higher heat dissipation performance, a larger number of split heat dissipation modules 200B can be set; when the projection device requires a more compact structure, a larger number of integrated heat dissipation modules 200A can be set.

[0070] It should be noted that if Figure 5 and Figure 7 As shown, compared with the split type heat dissipation module 200B, the integrated heat dissipation module 200A removes the water tank 240 and the water pipe, and the integrated heat dissipation module 200A has a higher degree of integration. Both the integrated heat dissipation module 200A and the split type heat dissipation module 200B can be fixed on the housing of the projection device by fixing screws. In addition, after the multiple heat dissipation modules 200 are installed on the housing, the installation height difference of each liquid cooling component 230 in the projection device does not exceed 3 cm, so as to avoid the reduction of heat dissipation efficiency caused by gravity and flow resistance during the circulation of the cooling liquid.

[0071] For example, Figure 1 and Figure 2 As shown, the projection device further includes a connecting tube 300; the plurality of heat dissipation modules 200 are connected to each other through the connecting tube 300, and the heat dissipation element 210 and the liquid cooling element 230 in the split heat dissipation module 200B are connected to each other through the connecting tube 300. In this configuration, the existence of the connecting tube 300 facilitates the flow of the cooling liquid between the plurality of heat dissipation modules 200, and facilitates the flow of the cooling liquid between the heat dissipation element 210 and the liquid cooling element 230. In addition, the connecting tube 300 is an elastic element, and the connecting tube 300 can be bent to adapt to different connection scenarios.

[0072] In the embodiments of the present application, Figures 5 to 7 As shown, the heat sink 210 includes a radiator 211 and a fan 212. The fan 212 is installed on the radiator 211. The radiator 211 includes a plurality of heat pipes 211A arranged at intervals, and part of the flow channel is located in the heat pipe 211A. The fan 212 is used to provide airflow flowing through the surface of the heat pipe 211A. With such an arrangement, when the coolant flows through the heat pipe 211A, the airflow generated by the fan 212 can take away the heat on the surface of the heat pipe 211A, thereby achieving rapid cooling of the coolant. Specifically, as Figure 6 As shown, the radiator 211 is a water-drain type radiator, and a heat sink 211B is provided between two adjacent heat pipes 211A. The heat sink 211B can abut against the heat pipe 211A and absorb the heat on the surface of the heat pipe 211A, thereby accelerating the cooling of the coolant in the heat pipe 211A. In addition, the heat sink 210 also includes an end pipe 211C, and the end pipe 211C has a cavity inside. The heat pipe 211A is arranged between the two end pipes 211C, and the coolant in the heat pipe 211A can flow into the cavity of the two end pipes 211C; in the multiple heat dissipation modules 200 arranged in series, the cavities of the end pipes 211C of two adjacent heat dissipation modules 200 are connected to each other.

[0073] Specifically, Figure 5 and Figure 7As shown, the liquid cooling member 230 is a plate member, part of the flow channel is located inside the liquid cooling member 230, and the flow channel in the liquid cooling member 230 is connected with the flow channel in the heat pipe 211A; the plate surface of the liquid cooling member 230 facing away from the heat sink 210 abuts against the heating element 100. In this way, after the plate surface of one side of the liquid cooling member 230 abuts against the heating element 100, it is convenient for the heating element 100 to transfer heat to the liquid cooling member 230. In addition, the size of the contact area between the liquid cooling member 230 and the heating element 100 can be adjusted, and the plate surface of the liquid cooling member 230 directly adheres to the heating surface of the heating element 100; in addition, the liquid cooling member 230 can also be a bump, and when the heating element 100 is a DMD device, the bump adheres to the surface of the DMD; the structure of the liquid cooling member 230 can be flexibly designed according to the structure of the heating element 100. In addition, the liquid cooling element 230 may be made of copper, and the liquid cooling element 230 and the heating element 100 may not be in direct contact with each other, but may be heat-conducted through a heat-conducting medium, which may be thermal grease.

[0074] Furthermore, the projection device further includes a temperature detection component and a control component. The temperature detection component, the driving component 220, the fan 212 and the temperature detection component are all electrically connected to the control component; the temperature detection component is used to detect the temperature of the heating component 100. In this way, the control component can control the real-time power of the fan 212 and the driving component 220 when they are working through the detected temperature data, so as to better dissipate heat and cool the heating component 100. Specifically, the temperature detection component is a temperature sensor, and the control component is a control circuit board, and the control component is mounted on the housing of the projection device. Specifically, the temperature data of each heating element 100 can be recorded every 10S. When the driving element 220 is a water pump, the control element adjusts the rotation speed of each fan 212 and the rotation speed of each water pump according to the temperature data to adjust the heat dissipation efficiency of the heat dissipation module 200 for different heating elements 100, so that the temperature of the heating element 100 is maintained within a specified range; for example, when the temperature of a heating element 100 is too high, in the heat dissipation module 200 that cools the heating element 100, the rotation speeds of the fan 212 and the water pump can be increased. After the power is increased, the heat dissipation efficiency of the heating element 100 can be improved, thereby quickly reducing the temperature of the heating element 100.

[0075] In addition, the present application also provides a projection device, including: a heating element 100; a heat dissipation module 200, a heat dissipation element 210 of the heat dissipation module 200 for accommodating a part of the flow channel of the heat dissipation module 200, a driving element 220 of the heat dissipation module 200 for driving the coolant in the flow channel to flow, so that the coolant flows through the liquid cooling element 230 of the heat dissipation module 200; a plurality of heat dissipation modules 200 are used to be connected in series with each other, so that the coolant circulates between the flow channels of the plurality of heat dissipation modules 200; a plurality of liquid cooling elements 230 are used to be thermally connected with the plurality of heating elements 100 in a one-to-one correspondence, and the liquid cooling element 230 is used to absorb the heat of the heating element 100. Thus, the respective heat dissipation modules 200 cooperate with each other, can improve the cooling efficiency of the heating element 100, and can simultaneously quickly cool the plurality of heating elements 100 in the projection device.

[0076] Based on the above embodiments, the present application further provides a projection system, including a projection screen and a projection device in any of the above implementations, the projection device being used to project a projection image onto the projection screen. The specific structure, working principle and function of the projection device have been described in detail in the above embodiments and will not be repeated here.

[0077] Based on the above embodiments, the present application further provides a projection system, including a projection screen and a projection device in any of the above embodiments, the projection device is used to project a projection image onto the projection screen. The specific structure, working principle and function of the projection device have been described in detail in the above embodiment 1, and will not be repeated here.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0079] For ease of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A projection device, characterized in that: include: Heating element; A heat dissipation module, comprising a heat dissipation element, a driving element and a liquid cooling element, wherein the heat dissipation module has a flow channel, and part of the flow channel is located inside the heat dissipation element; The driving member is used to drive the coolant in the flow channel to flow, so that the coolant flows through the liquid cooling member; There are multiple heat dissipation modules, which are arranged in series with each other so that the coolant circulates between the flow channels of the multiple heat dissipation modules; there are multiple heat-generating elements, which are thermally connected with the multiple heat-generating elements in a one-to-one correspondence, and the liquid cooling elements are used to absorb the heat of the heat-generating elements.

2. The projection device according to claim 1, characterized in that: The plurality of heat dissipation modules are all integrated heat dissipation modules, and the heat dissipation element, the driving element and the liquid cooling element are integrally arranged.

3. The projection device according to claim 1, characterized in that: The plurality of heat dissipation modules are all split heat dissipation modules, and the heat dissipation element and the liquid cooling element are arranged separately.

4. The projection device according to claim 1, characterized in that: The plurality of heat dissipation modules include at least one integrated heat dissipation module and at least one split heat dissipation module; The heat sink, the driving element and the liquid cooling element in the integrated heat dissipation module are integrally arranged; The heat sink and the liquid cooling element in the split heat dissipation module are arranged separately.

5. The projection device according to any one of claims 3 to 4, characterized in that: Also includes a connecting pipe; The plurality of heat dissipation modules are connected to each other via the connecting pipe, and / or the heat dissipation element and the liquid cooling element in the split heat dissipation module are connected to each other via the connecting pipe.

6. The projection device according to any one of claims 1 to 4, characterized in that: The heat dissipation element includes a radiator and a fan, wherein the fan is mounted on the radiator, the radiator includes a plurality of heat dissipation pipes arranged at intervals, and part of the flow channel is located in the heat dissipation pipes; the fan is used to provide wind flow passing through the surface of the heat dissipation pipes.

7. The projection device according to claim 6, characterized in that: The liquid cooling element is a plate element, part of the flow channel is located inside the liquid cooling element, and the flow channel in the liquid cooling element is connected to the flow channel in the heat dissipation pipe; A side surface of the liquid cooling element facing away from the heat dissipation element abuts against the heat generating element.

8. The projection device according to claim 6, characterized in that: It also includes a temperature detection component and a control component. The temperature detection component, the driving component, the fan and the temperature detection component are all electrically connected to the control component; the temperature detection component is used to detect the temperature of the heating component.

9. A projection device, characterized in that: include: Heating element; A heat dissipation module, wherein the heat dissipation element of the heat dissipation module is used to accommodate a part of the flow channel of the heat dissipation module, and the driving element of the heat dissipation module is used to drive the coolant in the flow channel to flow so that the coolant flows through the liquid cooling element of the heat dissipation module; The plurality of heat dissipation modules are used to be connected in series with each other so that the coolant circulates between the flow channels of the plurality of heat dissipation modules; The plurality of liquid cooling elements are used for thermal conduction with the plurality of heating elements in a one-to-one correspondence, and the liquid cooling elements are used for absorbing the heat of the heating elements.

10. A projection system, characterized in that: It comprises a projection screen and the projection device according to any one of claims 1 to 9, wherein the projection device is used to project a projection picture onto the projection screen.

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