Projector

Abstract

The utility model relates to a projector. Comprising a projector body, the projector body comprises a heating element and a first heat dissipation part, and the first heat dissipation part comprises a first cooling liquid channel; the external radiator is located on the outer side of the projector body and comprises a second heat dissipation part and a driving pump, the second heat dissipation part comprises a second cooling liquid channel, and the second heat dissipation part is used for conducting heat dissipation on cooling liquid in the second cooling liquid channel; the driving pump is used for driving the cooling liquid in the second cooling liquid channel; wherein the first cooling liquid channel and the second cooling liquid channel can be connected to form a cooling circulation loop, and the first heat dissipation component cools the heating element. The projector provided by the utility model is high in heat dissipation efficiency, can stably output high-brightness images for a long time, and is good in projection effect.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a projector. Background Art

[0002] With the continuous advancement of people's demand for mobile office, learning, and entertainment and the continuous advancement of technology, the size of projectors is getting smaller and smaller in order to better meet people's needs. Therefore, portable projectors with small size, light weight, and low noise are naturally becoming more and more widely used. However, due to factors such as power consumption, size, and weight, portable projectors generally achieve a comprehensive balance of overall performance by reducing the brightness in the working mode and reducing the number of cooling system components, which makes portable projectors have low heat dissipation efficiency and cannot work in high brightness mode. Utility Model Content

[0003] Based on this, it is necessary to provide a projector with high heat dissipation efficiency, which can stably output high-brightness images for a long time and has better projection effect.

[0004] The present application provides a projector, including:

[0005] A projector body, the projector body comprising a heating element and a first heat dissipation component, the first heat dissipation component comprising a first cooling liquid channel; and

[0006] An external radiator, the external radiator is located outside the projector body, and the external radiator includes a second radiating component and a driving pump, the second radiating component includes a second cooling liquid channel, and the second radiating component is used to dissipate heat for the cooling liquid in the second cooling liquid channel, and the driving pump is used to drive the cooling liquid in the second cooling liquid channel;

[0007] The first coolant channel and the second coolant channel can be connected to form a cooling circulation loop, and the first heat dissipation component cools the heating element.

[0008] In one embodiment, the projector body further includes a first interface module, and the external heat sink further includes a second interface module;

[0009] The first interface module is provided with a first liquid inlet joint and a first liquid outlet joint respectively connected to the inlet and outlet of the first coolant channel; the second interface module is provided with a second liquid inlet joint and a second liquid outlet joint respectively connected to the inlet and outlet of the second coolant channel;

[0010] The first liquid inlet connector and the second liquid outlet connector can be plugged in and out of the connector, and the first liquid outlet connector and the second liquid inlet connector can be plugged in and out of the connector, so that the first coolant channel and the second coolant channel are connected or disconnected.

[0011] In one embodiment, the inlet and the outlet of the second coolant channel are connected to the second liquid inlet connector and the second liquid outlet connector through an inlet pipe and an outlet pipe, respectively;

[0012] The outlet pipeline is provided with a first on-off valve and a driving pump, and the inlet pipeline is provided with a second on-off valve;

[0013] The first opening and closing valve, the second opening and closing valve, and the driving pump are configured to open when the first coolant passage and the second coolant passage are in communication, and to close when the first coolant passage and the second coolant passage are not in communication.

[0014] In one embodiment, the second heat dissipation component includes a cold row and a cold row fan disposed on the cold row;

[0015] The exhaust fan is configured to run when the drive pump is turned on and to stop when the drive pump is turned off.

[0016] In one embodiment, the projector body further includes a first controller; the external radiator further includes a second processor, the second processor is communicatively connected to the first controller, and is electrically connected to the driving pump, the exhaust fan, the first opening and closing valve, and the second opening and closing valve;

[0017] The first controller is used to send a control instruction to the second processor when the first liquid inlet connector and the second liquid outlet connector are plugged in and matched, and the second processor controls the drive pump, the exhaust fan, the first on-off valve and the second on-off valve to open.

[0018] In one embodiment, the first interface module is further provided with a first electrical connection connector, a second electrical connection connector and a third electrical connection connector, and the second interface module is further provided with a fourth electrical connection connector, a fifth electrical connection connector and a sixth electrical connection connector;

[0019] The first controller includes a first positive connection terminal, a first negative connection terminal and a first communication terminal respectively connected to the first electrical connection connector, the second electrical connection connector and the third electrical connection connector in a one-to-one correspondence; the second processor includes a second positive connection terminal, a second negative connection terminal and a second communication terminal respectively connected to the fourth electrical connection connector, the fifth electrical connection connector and the sixth electrical connection connector in a one-to-one correspondence;

[0020] The first electrical connection connector and the fourth electrical connection connector are pluggable and matable, the second electrical connection connector and the fifth electrical connection connector are pluggable and matable, and the third electrical connection connector and the sixth electrical connection connector are pluggable and matable.

[0021] In one embodiment, the external radiator further includes a second processor and a sensor switch, and the second processor is electrically connected to the driving pump, the cooling fan, the first opening and closing valve, and the second opening and closing valve;

[0022] The induction switch is used for plugging and matching the first liquid inlet connector and the second liquid outlet connector, and sending an induction signal to the second processor when the first liquid outlet connector and the second liquid inlet connector are plugged and matched;

[0023] The second processor is used to control the driving pump, the exhaust fan, the first opening and closing valve and the second opening and closing valve to open when receiving the sensing signal.

[0024] In one embodiment, the heating element includes a projector function unit and a charging unit;

[0025] The first heat dissipation component includes a first water cooling head, a second water cooling head and a third water cooling head;

[0026] The first water cooling head is used to dissipate heat for the charging unit, and the second water cooling head and the third water cooling head are used to dissipate heat for the projector function unit;

[0027] The first water cooling head, the second water cooling head and the third water cooling head are connected in series between the first liquid inlet joint and the first liquid outlet joint; or

[0028] After the second water cooling head and the third water cooling head are connected in series, they are connected in parallel with the first water cooling head between the second liquid inlet joint and the second liquid outlet joint. The branch of the second water cooling head and the third water cooling head connected in series and the branch of the first water cooling head are selectively opened.

[0029] In one embodiment, after the second water cooling head and the third water cooling head are connected in series, they are connected in parallel with the first water cooling head between the second liquid inlet connector and the second liquid outlet connector.

[0030] A third opening and closing valve is provided on the branch of the first water cooling head; a fourth opening and closing valve is provided on the branch connected in series with the second water cooling head and the third water cooling head;

[0031] The third opening and closing valve and the fourth opening and closing valve are configured to selectively open when the first coolant passage and the second coolant passage are in communication.

[0032] In one of the embodiments, the first heat dissipation component further includes at least two water cooling head fans, and the two water cooling head fans are used to dissipate heat for the first water cooling head, the second water cooling head and the third water cooling head.

[0033] Beneficial effects of the above projector:

[0034] By setting an external radiator, the external radiator is located outside the projector body, the first cooling liquid channel and the second cooling liquid channel can be connected to form a cooling circulation loop, and the first heat dissipation component cools the heating element. In other words, under the driving action of the driving pump, the cooling liquid in the second cooling liquid channel is drawn into the first cooling liquid channel to cool the heating element, and at the same time, the heat of the heating element is transferred to the second cooling channel of the second heat dissipation component with the cooling liquid, and the heat is dissipated by the second heat dissipation component. Therefore, the external radiator can assist the projector body in heat dissipation, which not only improves the heat dissipation efficiency of the projector, but also can better dissipate the heat of the projector body when the projector is working in high brightness mode and the heat generation is serious.

[0035] After the projector body is connected to the external radiator, the heat dissipation of the heating elements in the projector body is greatly improved, so that the projector can output high-brightness images stably for a long time.

[0036] When the projector works in low brightness mode, the heat is lighter than that in high brightness mode, and the first cooling channel and the second cooling channel of the external radiator can be disconnected, so that the volume of the projector body is smaller and the portability of the projector is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the structure of a projector provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the structure of a first interface module and a second interface module in a projector provided in an embodiment of the present application;

[0039] Figure 3 A schematic diagram of another structure of a projector provided in an embodiment of the present application.

[0040] Description of Figure Numbers:

[0041] 100, projector; 1, projector body; 10, first heat dissipation component; 11, first water cooling head; 113, third opening and closing valve; 114, fourth opening and closing valve; 12, second water cooling head; 13, third water cooling head; 20, second heat dissipation component; 21, radiator; 22, radiator fan; 30, external radiator; 40, heating element; 41, optical engine; 42, light source; 50, driving pump; 60, first interface module; 61, first liquid inlet connector; 62, first liquid outlet Connector; 70, second interface module; 71, second liquid inlet connector; 72, second liquid outlet connector; 80, projector functional unit; 81, inlet pipe; 82, outlet pipe; 83, first opening and closing valve; 84, second opening and closing valve; 90, charging unit; 91, first electrical connection connector; 92, second electrical connection connector; 93, third electrical connection connector; 94, fourth electrical connection connector; 95, fifth electrical connection connector; 96, sixth electrical connection connector; 97, water cooling head fan. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0044] In addition, 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present invention, 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 or an electrical connection; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0048] The projector according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0049] Figure 1 A schematic diagram of the structure of a projector provided in an embodiment of the present application, Figure 2 A schematic diagram of the structure of a first interface module and a second interface module in a projector provided in an embodiment of the present application, Figure 3 A schematic diagram of another structure of a projector provided in an embodiment of the present application.

[0050] Reference Figure 1 and Figure 2 The projector 100 provided in the embodiment of the present application includes a projector body 1 and an external radiator 30 .

[0051] The projector body 1 includes a heating element 40 and a first heat dissipation component 10 connected to the heating element 40, and the first heat dissipation component 10 includes a first cooling liquid channel (not shown). The external radiator 30 is located outside the projector body 1, and the external radiator 30 includes a second heat dissipation component 20 and a drive pump 50, the second heat dissipation component 20 includes a second cooling liquid channel (not shown), the second heat dissipation component 20 is used to dissipate the cooling liquid in the second cooling liquid channel, and the drive pump 50 is used to drive the cooling liquid in the second cooling liquid channel.

[0052] The first coolant channel and the second coolant channel can be connected to form a cooling circulation loop, and the first heat dissipation component 10 cools the heating element 40 .

[0053] By setting the external radiator 30, the external radiator 30 is located outside the projector body 1, the first cooling liquid channel and the second cooling liquid channel can be connected to form a cooling circulation loop, and the first heat dissipation component 10 cools the heating element 40. In other words, under the driving action of the driving pump 50, the cooling liquid in the second cooling liquid channel is drawn into the first cooling liquid channel to cool the heating element 40, and at the same time, the heat of the heating element 40 is transferred to the second cooling channel of the second heat dissipation component 20 with the cooling liquid, and the heat is dissipated by the second heat dissipation component 20. Therefore, the external radiator 30 can assist the projector body 1 in heat dissipation, which not only improves the heat dissipation efficiency of the projector 100, but also can better dissipate the heat of the projector body 1 when the projector 100 is working in high brightness mode and the heat generation is serious.

[0054] After the projector body 1 is connected to the external radiator 30 , the heat dissipation of the heating element 40 in the projector body 1 is greatly improved, so that the projector 100 can stably output high-brightness images for a long time.

[0055] When the projector 100 works in low brightness mode, the heat generation is lighter than that in high brightness mode, and the first cooling channel and the second cooling channel of the external radiator 30 may not be connected, so that the volume of the projector body 1 is smaller and does not affect the portability of the projector 100.

[0056] In addition, it should be noted that when the first coolant channel and the second coolant channel are connected, due to the driving action of the driving pump 50, the coolant enters the first coolant channel from the second coolant channel to form a cooling circulation loop.

[0057] In the embodiment of the present application, the projector body 1 further includes a first interface module 60 , and the external heat sink 30 further includes a second interface module 70 .

[0058] The first interface module 60 is provided with a first liquid inlet connector 61 and a first liquid outlet connector 62 respectively communicating with the inlet and outlet of the first coolant channel. The second interface module 70 is provided with a second liquid inlet connector 71 and a second liquid outlet connector 72 respectively communicating with the inlet and outlet of the second coolant channel.

[0059] The first liquid inlet connector 61 and the second liquid outlet connector 72 can be plugged in and out of the matching pair, and the first liquid outlet connector 62 and the second liquid inlet connector 71 can be plugged in and out of the matching pair, so that the first coolant channel and the second coolant channel are connected or disconnected.

[0060] With such arrangement, the first coolant channel and the second coolant channel can be connected by simply plugging and matching the first liquid inlet connector 61 and the second liquid outlet connector 72, and by plugging and matching the first liquid outlet connector 62 and the second liquid inlet connector 71. The first coolant channel and the second coolant channel can be disconnected by simply pulling out the first liquid inlet connector 61 and the second liquid outlet connector 72 and by pulling out the first liquid outlet connector 62 and the second liquid inlet connector 71. In this way, the first coolant channel and the second coolant channel can be connected and disconnected by simple plugging and unplugging.

[0061] In the embodiment of the present application, the inlet and outlet of the second coolant channel are connected to the second liquid inlet joint 71 and the second liquid outlet joint 72 through the inlet pipe 81 and the outlet pipe 82, respectively. The outlet pipe 82 is provided with a first opening and closing valve 83 and a driving pump 50, and the inlet pipe 81 is provided with a second opening and closing valve 84. The first opening and closing valve 83 and the second opening and closing valve 84 can both be solenoid valves, for example.

[0062] The first on-off valve 83 , the second on-off valve 84 , and the drive pump 50 are configured to open when the first coolant passage and the second coolant passage are in communication, and to close when the first coolant passage and the second coolant passage are not in communication.

[0063] In this configuration, when the first liquid inlet connector 61 and the second liquid outlet connector 72 are not connected, and the first liquid outlet connector 62 and the second liquid inlet connector 71 are not connected, the first coolant channel and the second coolant channel are disconnected. At this time, in order to ensure that the coolant does not flow out of the second coolant channel, the first on-off valve 83 and the second on-off valve 84 are closed.

[0064] In the embodiment of the present application, further, the second heat dissipation component 20 includes a cold row 21 and a cold row fan 22 disposed on the cold row 21. The cold row fan 22 is configured to operate when the driving pump 50 is turned on, and to stop operating when the driving pump 50 is turned off.

[0065] With such arrangement, when the driving pump 50 is turned on, the coolant flows between the outlet pipe 82, the second coolant channel, and the inlet pipe 81 to dissipate heat. At this time, the exhaust fan 22 is turned on to assist the coolant in dissipating heat.

[0066] Furthermore, the projector body 1 further includes a first controller (not shown); the external radiator 30 further includes a second processor (not shown), the second processor is communicatively connected to the first controller, and the second processor is electrically connected to the driving pump 50, the exhaust fan 22, the first opening and closing valve 83, and the second opening and closing valve 84;

[0067] The first controller is used to send a control instruction to the second processor when the first liquid inlet connector 61 and the second liquid outlet connector 72 are plugged in and matched, and the second processor controls the drive pump 50, the exhaust fan 22, the first on-off valve 83 and the second on-off valve 84 to open.

[0068] In this configuration, after the projector body 1 detects that the external radiator 30 is connected, it sends instructions to the second processor of the external radiator 30, so that the second processor controls the driving pump 50, the exhaust fan 22, the first opening and closing valve 83 and the second opening and closing valve 84 to open. This makes the reliability higher and can avoid the external radiator 30 from being started up by mistake.

[0069] Furthermore, the first interface module 60 is provided with a first electrical connection connector 91 , a second electrical connection connector 92 and a third electrical connection connector 93 , and the second interface module 70 is provided with a fourth electrical connection connector 94 , a fifth electrical connection connector 95 and a sixth electrical connection connector 96 .

[0070] The first controller includes a first positive connection terminal, a first negative connection terminal and a first communication terminal (not shown) which are respectively connected to the first electrical connection connector 91, the second electrical connection connector 92 and the third electrical connection connector 93 in a one-to-one correspondence. The second processor includes a second positive connection terminal, a second negative connection terminal and a second communication terminal which are respectively connected to the fourth electrical connection connector 94, the fifth electrical connection connector 95 and the sixth electrical connection connector 96 in a one-to-one correspondence.

[0071] The first electrical connection connector 91 and the fourth electrical connection connector 94 are pluggable and compatible, the second electrical connection connector 92 and the fifth electrical connection connector 95 are pluggable and compatible, and the third electrical connection connector 93 and the sixth electrical connection connector 96 are pluggable and compatible.

[0072] In this way, the first electrical connection connector 91 and the fourth electrical connection connector 94 can be plugged in and out of the matching, so that the first positive connection terminal and the second positive connection terminal are electrically connected. The second electrical connection connector 92 and the fifth electrical connection connector 95 can be plugged in and out of the matching, so that the first negative connection terminal and the second negative connection terminal are electrically connected. The third electrical connection connector 93 and the sixth electrical connection connector 96 can be plugged in and out of the matching, so that the first communication terminal and the second communication terminal can be electrically connected, so that the first controller and the second processor can be connected to each other in communication.

[0073] In another possible implementation of the embodiment of the present application, the external radiator 30 further includes a second processor and a sensing switch, and the second processor is electrically connected to the driving pump 50, the cold exhaust fan 22, the first opening and closing valve 83, and the second opening and closing valve 84. The sensing switch is used to send a sensing signal to the second processor when the first liquid inlet connector 61 and the second liquid outlet connector 72 are plugged in and matched, and the first liquid outlet connector 62 and the second liquid inlet connector 71 are plugged in and matched. The second processor is used to control the driving pump 50, the cold exhaust fan 22, the first opening and closing valve 83, and the second opening and closing valve 84 to be opened when receiving the sensing signal.

[0074] The induction switch here can be a mechanical or electromagnetic induction switch. Considering the highlight mode and the charging mode, in many scenarios, users want higher brightness projection and faster charging speed, and do not mind the increased noise of the cold exhaust fan 22 and the drive pump 50 on the external radiator 30. Therefore, in this scenario, the operating power of the cold exhaust fan 22 and the drive pump 50 can always be set to a higher level. At this time, the external radiator 30 does not need to communicate successfully with the projector body 1 before starting to run. A sensor switch can be installed at the interface between the external radiator 30 and the projector body 1. Once the projector body 1 and the external radiator 30 are connected, the sensor switch sends a sensing signal to the second processor, and the second processor can control the operation of the cold exhaust fan 22 and the drive pump 50. This saves the communication circuit of the first interface module 60 and the second interface module 70.

[0075] In the embodiment of the present application, the heating element 40 may include a projector function unit 80 and a charging unit 90 .

[0076] The first heat dissipation component 10 includes a first water cooling head 11 , a second water cooling head 12 and a third water cooling head 13 .

[0077] The first water cooling head 11 is used to dissipate heat for the charging unit 90, and the second water cooling head 12 and the third water cooling head 13 are used to dissipate heat for the projector function unit 80. The projector function unit 80 may include, for example, an optical machine 41 and a light source 42, the second water cooling head 12 may be used to dissipate heat for the light source 42, and the third water cooling head 13 may be used to dissipate heat for the imaging device of the optical machine 43.

[0078] Reference Figure 1 As a possible implementation, the first water cooling head 11, the second water cooling head 12 and the third water cooling head 13 are connected in series between the first liquid inlet joint 61 and the first liquid outlet joint 62. At this time, the first water cooling head 11, the second water cooling head 12 and the third water cooling head 13 can be connected by a pipe.

[0079] Or refer to Figure 3As another possible implementation, after the second water cooling head 12 and the third water cooling head 13 are connected in series, they are connected in parallel with the first water cooling head 11 between the second liquid inlet connector 71 and the second liquid outlet connector 72, and one of the branches of the second water cooling head 12 and the third water cooling head 13 connected in series and the branch of the first water cooling head 11 is opened selectively.

[0080] When the first water cooling head 11, the second water cooling head 12 and the third water cooling head 13 are connected in series, when the second cooling liquid channel is connected to the first cooling liquid channel, the cooling liquid flows in the first water cooling head 11, the second water cooling head 12 and the third water cooling head 13, and cools the projector function unit 80 and the charging unit 90 at the same time, which is suitable for the mode of charging and highlighting at the same time. When the second water cooling head 12 and the third water cooling head 13 are connected in series and connected in parallel with the first water cooling head 11, the branch of the second water cooling head 12 and the third water cooling head 13 in series and the branch of the first water cooling head 11 can be opened one by one, so that the projector function unit 80 can be cooled (single highlight mode, no charging) or the charging unit 90 can be cooled (single charging mode). According to the actual situation, the heating element 40 to be cooled can be selected to reduce energy consumption and increase cooling efficiency.

[0081] Furthermore, a third opening and closing valve 113 is provided on the branch line of the first water cooling head 11 , and a fourth opening and closing valve 114 is provided on the branch line to which the second water cooling head 12 and the third water cooling head 13 are connected in series.

[0082] The third on-off valve 113 and the fourth on-off valve 114 are configured to selectively open when the first coolant passage and the second coolant passage are in communication.

[0083] With this arrangement, the third on-off valve 113 can be used to control the opening and closing of the branch of the first water cooling head 11 , and the fourth on-off valve 114 can be used to control the opening and closing of the branch of the second water cooling head 12 and the third water cooling head 13 connected in series.

[0084] Further, continue to refer to Figure 1 The first heat dissipation component 10 further includes at least two water cooling head fans 97, which are used to dissipate heat from the first water cooling head 11, the second water cooling head 12, and the third water cooling head 13. In this way, the first water cooling head 11, the second water cooling head 12, and the third water cooling head 13 can have a better cooling effect on the heating element 40.

[0085] When used, the embodiment of the present application may have the following working modes:

[0086] Mode 1: Brightness mode

[0087] After the first interface module 60 and the second interface module 70 of the projector body are connected, the first controller detects the connection and sends a control instruction to the second processor, and the second processor controls the drive pump 50, the exhaust fan 22, the first opening and closing valve 83 and the second opening and closing valve 84 to open. The drive pump 50 drives the coolant in the second coolant channel to enter the first coolant channel.

[0088] Corresponds to Figure 1 , the cooling liquid enters the first water cooling head 11, the second water cooling head 12 and the third water cooling head 13 to cool the imaging element, the light source 42 and the charging unit 90 of the optical machine 41. The heat of these heating elements 40 enters the second cooling liquid channel along with the cooling liquid, and is discharged into the air through the cold exhaust 21 and the cold exhaust fan 22. At this time, the projector can operate in a high-power, high-heat high-brightness mode. Since the charging unit 90 is cooled at the same time, the charging unit 90 can also be charged at this time.

[0089] Corresponds to Figure 3 , the fourth on-off valve 14 is opened, and the coolant enters the second water cooling head 12 and the third water cooling head 13 to cool the imaging element and the light source 42 of the optical machine 41. The heat of these heating elements 40 enters the second coolant channel along with the coolant, and is discharged into the air through the radiator 21 and the radiator fan 22. At this time, the projector can run in a high-power, high-heat, high-brightness mode.

[0090] Mode 2: Charging mode

[0091] Corresponds to Figure 3 When the second processor controls the driving pump 50, the cooling fan 22, the first opening and closing valve 83 and the second opening and closing valve 84 to open, the third opening and closing valve 113 opens, and the coolant enters the first water cooling head 11 to cool the charging unit 90. This greatly improves the heat dissipation of the charging battery pack and the charging circuit, so that the charging unit 90 can work under a high-power charging current, thereby accelerating the charging speed.

[0092] Mode 3: Portable Mode

[0093] The projector works independently. Since there is no heavy and large external radiator, the projector is powered by its own battery and cooled by the internal water-cooling fan. In this way, the projector can also meet the needs of light, compact and mobile scenes.

[0094] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A projector, characterized in that: include: A projector body, the projector body comprising a heating element and a first heat dissipation component connected to the heating element, the first heat dissipation component comprising a first cooling liquid channel; An external radiator, the external radiator being located outside the projector body, and comprising a second radiating component and a driving pump, the second radiating component comprising a second cooling liquid channel, and the second radiating component being used to dissipate heat for cooling liquid in the second cooling liquid channel, and the driving pump being used to drive the cooling liquid in the second cooling liquid channel; The first coolant channel and the second coolant channel can be connected to form a cooling circulation loop, and the first heat dissipation component cools the heating element.

2. The projector according to claim 1, characterized in that: The projector body further includes a first interface module, and the external radiator further includes a second interface module; The first interface module is provided with a first liquid inlet joint and a first liquid outlet joint respectively connected with the inlet and outlet of the first coolant channel; the second interface module is provided with a second liquid inlet joint and a second liquid outlet joint respectively connected with the inlet and outlet of the second coolant channel; The first liquid inlet connector and the second liquid outlet connector can be plugged in and out of the matching pair, and the first liquid outlet connector and the second liquid inlet connector can be plugged in and out of the matching pair, so that the first coolant channel and the second coolant channel are connected or disconnected.

3. The projector according to claim 2, characterized in that: The inlet and outlet of the second coolant channel are connected to the second liquid inlet connector and the second liquid outlet connector through an inlet pipe and an outlet pipe respectively; The outlet pipe is provided with a first opening and closing valve and the driving pump, and the inlet pipe is provided with a second opening and closing valve; The first opening and closing valve, the second opening and closing valve, and the driving pump are configured to open when the first coolant passage and the second coolant passage are in communication, and to close when the first coolant passage and the second coolant passage are not in communication.

4. The projector according to claim 3, characterized in that: The second heat dissipation component includes a cold row and a cold row fan arranged on the cold row; The exhaust fan is configured to operate when the driving pump is turned on, and to stop operating when the driving pump is turned off.

5. The projector according to claim 4, characterized in that: The projector body further includes a first controller; the external radiator further includes a second processor, the second processor is communicatively connected to the first controller, and is electrically connected to the driving pump, the cooling fan, the first opening and closing valve, and the second opening and closing valve; The first controller is used to send a control instruction to the second processor when the first liquid inlet connector and the second liquid outlet connector are plugged in and matched, and the first liquid outlet connector and the second liquid inlet connector are plugged in and matched, and the second processor controls the driving pump, the exhaust fan, the first on-off valve and the second on-off valve to open.

6. The projector according to claim 5, characterized in that: The first interface module is further provided with a first electrical connection connector, a second electrical connection connector and a third electrical connection connector, and the second interface module is further provided with a fourth electrical connection connector, a fifth electrical connection connector and a sixth electrical connection connector; The first controller includes a first positive connection terminal, a first negative connection terminal and a first communication terminal respectively connected to the first electrical connection connector, the second electrical connection connector and the third electrical connection connector in a one-to-one correspondence; the second processor includes a second positive connection terminal, a second negative connection terminal and a second communication terminal respectively connected to the fourth electrical connection connector, the fifth electrical connection connector and the sixth electrical connection connector in a one-to-one correspondence; The first electrical connection connector and the fourth electrical connection connector are pluggable and matable, the second electrical connection connector and the fifth electrical connection connector are pluggable and matable, and the third electrical connection connector and the sixth electrical connection connector are pluggable and matable.

7. The projector according to claim 4, characterized in that: The external radiator also includes a second processor and a sensor switch, and the second processor is electrically connected to the driving pump, the cooling fan, the first opening and closing valve, and the second opening and closing valve; The induction switch is used to send an induction signal to the second processor when the first liquid inlet connector and the second liquid outlet connector are plugged and matched, and the first liquid outlet connector and the second liquid inlet connector are plugged and matched; The second processor is used to control the driving pump, the exhaust fan, the first opening and closing valve, and the second opening and closing valve to open when receiving the sensing signal.

8. The projector according to any one of claims 2 to 7, characterized in that: The heating element includes a projector function unit and a charging unit; The first heat dissipation component includes a first water cooling head, a second water cooling head and a third water cooling head; The first water cooling head is used to dissipate heat for the charging unit, and the second water cooling head and the third water cooling head are used to dissipate heat for the projector function unit; The first water cooling head, the second water cooling head and the third water cooling head are connected in series between the first liquid inlet joint and the first liquid outlet joint; or After the second water cooling head and the third water cooling head are connected in series, they are connected in parallel with the first water cooling head between the second liquid inlet connector and the second liquid outlet connector, and one of the branch of the second water cooling head and the third water cooling head connected in series and the branch of the first water cooling head is opened.

9. The projector according to claim 8, characterized in that: After the second water cooling head and the third water cooling head are connected in series, when they are connected in parallel with the first water cooling head between the second liquid inlet joint and the second liquid outlet joint, a third opening and closing valve is provided on the branch of the first water cooling head; a fourth opening and closing valve is provided on the branch connected in series with the second water cooling head and the third water cooling head; The third opening and closing valve and the fourth opening and closing valve are configured to selectively open when the first coolant passage and the second coolant passage are in communication.

10. The projector according to claim 8, characterized in that: The first heat dissipation component further includes at least two water cooling head fans, and the two water cooling head fans are used to dissipate heat for the first water cooling head, the second water cooling head and the third water cooling head.

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