Projector

Abstract

The utility model provides a projector which comprises a shell, an optical assembly, a cooling fan, a refrigerator and a water guide piece, the shell comprises a bottom shell and a top shell, the bottom shell and the top shell define a cooling cavity and a mounting cavity which are communicated with each other, the cooling cavity is provided with a cooling port, an airflow channel is arranged in the top shell, and the cooling fan is arranged in the airflow channel. The airflow channel is respectively communicated with the heat dissipation cavity and the mounting cavity; the optical assembly is mounted in the mounting cavity; the heat dissipation fan is arranged in the heat dissipation cavity, and the heat dissipation fan blows air towards the mounting cavity; the refrigerator is arranged at the heat dissipation opening and comprises a cold end component and a hot end component, and the cold end component is located in the heat dissipation cavity; the water guide piece comprises a water absorption part and an evaporation part, the water absorption part is arranged in the heat dissipation cavity and abuts against the inner wall of the heat dissipation cavity, and the evaporation part is connected with the hot end component. The problem that parts in the projector are easily damaged due to the fact that condensate water is generated in the projector in a heat dissipation mode of an existing projector is solved.

Description

Technical Field

[0001] The present application relates to the technical field of image projection, and in particular to a projector. Background Art

[0002] The working environment temperature of the projector is relatively high, generally 3℃~35℃. Since the projector emits a lot of heat during operation, the temperature inside the projector will rise rapidly, causing the projector to not operate normally. Therefore, a heat dissipation system needs to be designed to ensure the normal operation of the projector.

[0003] The existing heat dissipation method is air cooling, which transfers the heat inside the projector to the outside through a fan. However, this will make the heat dissipation efficiency low, and the temperature inside the projector will not drop below room temperature. Therefore, some projectors use cooling plates to improve the heat dissipation efficiency. However, after using cooling plates, the temperature difference between the inside and outside of the projector will be too large during actual use, resulting in condensation water inside the projector, which is easy to damage the internal components of the projector. Utility Model Content

[0004] The embodiment of the present application provides a projector, which solves the problem that the heat dissipation method of the existing projector will generate condensed water inside the projector, which is easy to damage the internal components of the projector.

[0005] The utility model is implemented as follows: a projector comprises a shell, an optical component, a heat dissipation fan, a refrigerator and a water guide, the shell comprises a bottom shell and a top shell, the bottom shell and the top shell are enclosed to form a heat dissipation cavity and an installation cavity which are communicated with each other, the heat dissipation cavity has a heat dissipation port, an air flow channel is arranged in the top shell, and the air flow channel is communicated with the heat dissipation cavity and the installation cavity respectively; the optical component is installed in the installation cavity; the heat dissipation fan is arranged in the heat dissipation cavity, and the heat dissipation fan blows air toward the installation cavity; the refrigerator is arranged at the heat dissipation port, the refrigerator comprises a cold end component and a hot end component, and the cold end component is located in the heat dissipation cavity; the water guide comprises a water absorption part and an evaporation part, the water absorption part is arranged in the heat dissipation cavity and abuts against the inner wall of the heat dissipation cavity, and the evaporation part is connected to the hot end component.

[0006] In one embodiment, the hot end component includes a plurality of heat dissipation plates arranged in parallel and at intervals, the evaporation portion includes a plurality of evaporation plates arranged in parallel and at intervals, and the heat dissipation plates are embedded between the evaporation plates.

[0007] In one of the embodiments, the water guide member is made of water guide cotton in one piece, and the water absorption portion abuts against the inner wall of each side of the heat dissipation cavity.

[0008] In one embodiment, the top shell is provided with a first air inlet communicating with the installation cavity and the air flow channel, and a first air outlet communicating with the air flow channel and the heat dissipation cavity;

[0009] The first air inlet is directly opposite to the optical component, and the first air outlet is directly opposite to the cold end component.

[0010] In one of the embodiments, the cold end component includes a second air inlet and a second air outlet, the second air inlet is directly opposite to the first air outlet, and the second air outlet is directly opposite to the cooling fan.

[0011] In one embodiment, the water absorption part is provided with a blocking member, and a receiving cavity is formed between the blocking member and the evaporation part;

[0012] The refrigerator further comprises a refrigeration fin arranged between the cold end component and the hot end component, the refrigeration fin and the cold end component are both arranged in the accommodating cavity, the refrigeration fin abuts against the evaporation part, and the cold end component abuts against the blocking member.

[0013] In one of the embodiments, the orthographic projection of the blocking member on the cold end component does not overlap with the second air outlet.

[0014] In one embodiment, the heat dissipation cavity includes a first ventilation cavity and a second ventilation cavity arranged in parallel, and a communication port is provided between the first ventilation cavity and the second ventilation cavity;

[0015] The heat dissipation fan is arranged in the first ventilation cavity, and the blowing end of the heat dissipation fan faces the communication port;

[0016] A third air outlet is disposed on the side wall of the second ventilation cavity, and the third air outlet is directly opposite to the optical component.

[0017] In one of the embodiments, the projector further comprises an exhaust fan, and the exhaust fan is used for blowing air toward the evaporation portion.

[0018] In one embodiment, the top case includes a top case body and a cover plate detachably covered on the top case body.

[0019] The beneficial effect of the projector provided by the present application is that compared with the prior art, the heat dissipation cavity, installation cavity and air flow channel of the present application are interconnected, a heat dissipation fan is arranged in the heat dissipation cavity, an optical component is installed in the installation cavity, and a refrigerator is arranged at the heat dissipation port. When the heat dissipation fan blows toward the installation cavity, the cold air will blow toward the optical component. The cold air will take away the heat emitted by the optical component through the optical component and pass through the air flow channel and the refrigerator in sequence, and finally return to the heat dissipation cavity, thereby achieving the effect of internal circulation heat dissipation. Since the air entering the refrigerator is hot air, condensed water will be generated, and the present application provides a water guide connected to the refrigerator in the heat dissipation cavity. The water guide will absorb the condensed water, and the hot end component of the refrigerator will heat and evaporate the condensed water absorbed by the water guide and discharge it out of the projector, thereby effectively avoiding the condensed water inside the projector from damaging the components inside the projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional diagram of a projector provided in an embodiment of the present application;

[0021] Figure 2 is an exploded view of a projector provided in an embodiment of the present application;

[0022] Figure 3 yes Figure 1 A top view of

[0023] Figure 4 yes Figure 3 AA cross-section diagram.

[0024] Reference numerals: 1, housing; 11, bottom housing; 101, heat dissipation cavity; 1011, first ventilation cavity; 1012, second ventilation cavity; 1013, communication port; 1014, third air outlet; 100, heat dissipation port; 102, installation cavity; 12, top housing; 120, air flow channel; 121, first air inlet; 122, first air outlet; 1201, top housing body; 1202, cover plate;

[0025] 2. Optical component; 3. Cooling fan; 4. Refrigerator; 41. Cold end component; 411. Second air inlet; 412. Second air outlet; 42. Hot end component; 421. Heat sink; 43. Refrigeration sheet;

[0026] 5. Water guide; 51. Water absorption part; 511. Blocking part; 52. Evaporation part; 521. Evaporation plate; 6. Exhaust fan. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the 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.

[0030] 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. 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, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0032] The embodiment of the present application provides a projector, which solves the problem that the heat dissipation method of the existing projector will generate condensed water inside the projector, which is easy to damage the internal components of the projector.

[0033] In the related art, a projector generates a lot of heat when in use, so it is necessary to dissipate heat from the projector while the projector is working. If the heat is not dissipated in time, the projector will be damaged within a few minutes. The common heat dissipation method is to use a fan to blow out the heat inside the projector, but in this way, pollutants such as dust and oil can easily enter the projector from the air outlet, thereby shortening the service life of the projector. In order to avoid the influence of complicated external conditions, the important optical components inside the projector can be sealed, and the heat inside the projector can be transferred to the outside of the projector through a heat exchange radiator, and then the heat is taken away by an external exhaust fan, so as to achieve the effect of being sealed, dustproof and heat-dissipating.

[0034] Generally, semiconductor refrigeration chips are used to exchange the heat generated by the projector to achieve the purpose of heat dissipation. However, this will cause a large temperature difference between the inside and outside of the projector, thereby generating condensed water inside the projector. The presence of condensed water inside the projector can easily cause damage to the internal components of the projector and affect the normal use of the projector.

[0035] refer to Figure 1 and Figure 2 The projector provided in the embodiment of the present application has heat dissipation and dust prevention functions. The projector comprises a housing 1, an optical component 2, a heat dissipation fan 3, a refrigerator 4 and a water guide 5.

[0036] Among them, the shell 1 includes a bottom shell 11 and a top shell 12, and the bottom shell 11 and the top shell 12 enclose a heat dissipation cavity 101 and an installation cavity 102 that are interconnected. The heat dissipation cavity 101 has a heat dissipation port 100, and an air flow channel 120 is provided in the top shell 12, and the air flow channel 120 is respectively connected to the heat dissipation cavity 101 and the installation cavity 102; the optical component 2 is installed in the installation cavity 102; the heat dissipation fan 3 is arranged in the heat dissipation cavity 101, and the heat dissipation fan 3 blows air toward the installation cavity 102; the refrigerator 4 is arranged at the heat dissipation port 100, and the refrigerator 4 includes a cold end component 41 and a hot end component 42, and the cold end component 41 is located in the heat dissipation cavity 101; the water guide 5 includes a water absorption part 51 and an evaporation part 52, the water absorption part 51 is arranged in the heat dissipation cavity 101 and abuts against the inner wall of the heat dissipation cavity 101, and the evaporation part 52 is connected to the hot end component 42.

[0037] In the embodiment of the present application, the heat dissipation cavity 101 and the installation cavity 102 are connected, and the air flow channel 120 arranged in the top shell 12 is connected with the heat dissipation cavity 101 and the installation cavity 102 respectively, so that the heat dissipation cavity 101, the installation cavity 102 and the air flow channel 120 are connected to form an internal circulation air duct for heat dissipation. The specific internal circulation process is that the heat dissipation fan 3 blows cold air to the installation cavity 102. At this time, the cold air passes through the optical component 2 installed in the installation cavity 102 to take away the heat emitted by the optical component 2, and the hot air with heat enters the air flow channel 120. Due to the influence of the suction force of the heat dissipation fan 3, the hot air in the air flow channel 120 will return to the heat dissipation cavity 101 to realize internal circulation. Since a refrigerator 4 is provided at the heat dissipation port 100, and the cold end component 41 of the refrigerator 4 is located in the heat dissipation cavity 101, the hot air in the air flow channel 120 will first pass through the cold end component 41 and then enter the heat dissipation cavity 101. After passing through the cold end component 41, the wind entering the heat dissipation cavity 101 will become cold air, so that continuing the internal circulation can effectively conduct the heat generated by the optical component 2 to the outside of the projector, thereby achieving a good heat dissipation function.

[0038] After the hot air passes through the cold end component 41, the hot air becomes cold air and condensed water is generated. At this time, the water absorption part 51 of the water guide part 5 arranged in the heat dissipation cavity 101 will absorb the condensed water and conduct it to the evaporation part 52 of the water guide part 5. The hot end component 42 of the refrigerator 4 is connected to the evaporation part 52. In this way, the heat generated by the hot end component 42 will heat and evaporate the water contained in the evaporation part 52, thereby discharging the condensed water generated inside the projector outside the projector, effectively preventing the condensed water from damaging the internal components of the projector and ensuring the normal use of the projector.

[0039] It should be noted that the present application is to install the lens assembly in the installation cavity 102, and the lens assembly includes an optical assembly 2, and the heat is usually generated by the optical assembly 2, so the optical assembly 2 needs to be located in the internal circulation air duct, so that the cold wind blowing through can take away the heat generated by the optical assembly 2. Specifically, the optical assembly 2 can be an optical lens.

[0040] The shell 1 of the present application is divided into a bottom shell 11 and a top shell 12, which are designed separately and then assembled. This is not only convenient for manufacturing, but also makes it easier to install the cooling fan 3, optical component 2, refrigerator 4 and water guide 5 on the bottom shell 11. In addition, it is also more convenient when it is necessary to repair or replace the internal components of the projector.

[0041] It should be noted that the water guide 5 has a conductive property, and the condensed water absorbed by the water absorption part 51 of the water guide 5 will be conducted to the evaporation part 52, and then heated and evaporated by the hot end component 42, so as to discharge the condensed water inside the projector. Specifically, the water guide 5 is a water-conducting cotton, such as PVA cotton. The present application uses water-conducting cotton to form the water guide 5 in one piece, so that the water guide 5 can be installed in place at one time when it is installed, and there is no need to set water-conducting cotton on multiple inner walls of the heat dissipation cavity 101 one by one, which greatly saves the installation time of the water guide 5. At the same time, the water guide 5 is an integral structure, which can enhance the water absorption effect and ensure that the condensed water absorbed by the water absorption part 51 of the water guide 5 is conducted to the evaporation part 52 of the water guide 5.

[0042] In some embodiments, reference Figure 4 The water absorbing part 51 of the water guide 5 is in contact with the inner wall of each side of the heat dissipation cavity 101. That is, the inner walls of the heat dissipation cavity 101 are all provided with water guide cotton, which can not only completely and quickly absorb the condensed water in the heat dissipation cavity 101, but also the effect of the water absorbing part 51 absorbing the condensed water will not be affected even if the projector is rotated 360 degrees for use, so as to better ensure that the projector can be used normally in any situation.

[0043] In order to enhance the firmness and fit of the water-guiding cotton on the inner wall of the heat dissipation cavity 101, glue can be used to bond the water-guiding cotton to the inner wall of the heat dissipation cavity 101. For example, double-sided tape can be pasted on the water-guiding cotton or the inner wall of the heat dissipation cavity 101. In this way, the water-guiding component 5 can be directly placed in the heat dissipation cavity 101, and then the water-guiding component 5 can be manually pressed against the inner wall of the heat dissipation cavity 101 to complete the installation of the water-guiding component 5. Not only is the installation simple and fast, but the water absorption effect of the water-guiding component 5 can also be better.

[0044] In some embodiments, reference Figure 2 The hot end component 42 includes a plurality of heat sinks 421 arranged in parallel and spaced apart, and the evaporation portion 52 includes a plurality of evaporation plates 521 arranged in parallel and spaced apart, and the heat sinks 421 are embedded between the evaporation plates 521. In this way, the hot end component 42 and the evaporation portion 52 can be fully contacted, so that the condensed water contained in the evaporation portion 52 can be evaporated more effectively and quickly.

[0045] It should be noted that the number of heat sinks 421 and evaporation plates 521 can be the same or different, and each heat sink 421 is embedded between two adjacent evaporation plates 521, so that the heat sink 421 will contact the two evaporation plates 521 at the same time, thereby increasing the heating area of ​​the evaporation plates 521, and the condensed water contained in the evaporation plates 521 can be quickly heated and evaporated. When the number of evaporation plates 521 is greater than the number of heat sinks 421, only a part of the evaporation plates 521 is embedded with heat sinks 421, and the gap between the adjacent two evaporation plates 521 without heat sinks 421 can also be well ventilated due to the gap, achieving the effect of water dissipation.

[0046] In some embodiments, reference Figure 2-Figure 4 The top shell 12 is provided with a first air inlet 121 connecting the installation cavity 102 and the air flow channel 120, and a first air outlet 122 connecting the air flow channel 120 and the heat dissipation cavity 101; the first air inlet 121 is directly opposite to the optical component 2, and the first air outlet 122 is directly opposite to the cold end component 41. In this way, after the cold air blows onto the optical component 2, it takes away the heat generated by the optical component 2 and turns into hot air. The hot air will directly enter the air flow channel 120 from the first air inlet 121, and directly blow into the cold end component 41 from the first air outlet 122 for cooling. In this way, the hot air flow path can be smoother, and the hot air with heat can enter the cold end component 41 for cooling to a greater extent, which plays a good heat dissipation role and is conducive to the rapid cooling of the optical component 2.

[0047] In some embodiments, reference Figure 2The top case 12 includes a top case body 1201 and a cover plate 1202 detachably covered on the top case body 1201. Such a split design of the top case 12 can improve the manufacturing efficiency of the top case 12, and the bottom surface of the top case body 1201 is provided with a first air inlet 121 and a first air outlet 122. Installing the top case body 1201 first can also ensure that the first air inlet 121 provided on the top case 12 is directly opposite to the optical component 2, and the first air outlet 122 is directly opposite to the cold end component 41.

[0048] In some embodiments, reference Figure 2 and Figure 4 The cold end component 41 includes a second air inlet 411 and a second air outlet 412. The second air inlet 411 is directly opposite to the first air outlet 122, and the second air outlet 412 is directly opposite to the heat dissipation fan 3. In this way, it can be ensured that all the hot air in the air flow channel 120 is blown into the cold end component 41 from the second air inlet 411, and after being cooled by the cold end component 41, the cold air is blown out from the second air outlet 412, and then the heat dissipation fan 3 set in the heat dissipation cavity 101 will blow the cold air toward the installation cavity 102 again, so as to repeat the process of internal circulation heat dissipation.

[0049] It should be noted that the cold end component 41 includes a plurality of grilles arranged in parallel and at intervals, the grilles extending in the direction from the top shell 12 to the bottom shell 11, and each grille is perpendicular to the heat dissipation port 100, so that the second air inlet 411 is the gap between two adjacent grilles, and the second air outlet 412 is also the gap between two adjacent grilles, so that the hot air in the air flow channel 120 can enter the cold end component 41 evenly from the second air inlet 411 to achieve the purpose of rapid cooling, and the cold air after cooling can also be evenly blown into the heat dissipation cavity 101 from the second air outlet 412, so that the heat dissipation fan 3 can easily inhale the cold air and blow it toward the installation cavity 102.

[0050] The cooling fan 3 inhales air at one end and blows air at the other end. The blowing end of the cooling fan 3 in the embodiment of the present application faces the installation cavity 102, and the suction end of the cooling fan 3 is close to the cold end component 41, so that the cooling fan 3 generates suction when inhaling air, so that the hot air in the air flow channel 120 is blown into the cold end component 41 under the action of the suction force, and then the cold air is discharged from the second air outlet 412 of the cold end component 41 to be inhaled by the cooling fan 3 and blown toward the installation cavity 102. The entire air-cooled cycle heat dissipation process is automatically realized without the need for human intervention, thereby greatly improving the heat dissipation efficiency.

[0051] In some embodiments, reference Figure 2The water absorption part 51 is provided with a blocking member 511, and a receiving cavity is formed between the blocking member 511 and the evaporation part 52; the refrigerator 4 also includes a refrigeration plate 43 arranged between the cold end part 41 and the hot end part 42, and the refrigeration plate 43 and the cold end part 41 are both arranged in the receiving cavity, and the refrigeration plate 43 abuts against the evaporation part 52, and the cold end part 41 abuts against the blocking member 511.

[0052] Through the above settings, the refrigeration fins 43 and the cold end component 41 are both accommodated in the accommodating cavity, which can make the installation of the refrigeration fins 43 and the cold end component 41 more stable, ensuring that the cold end component 41 will not be displaced and always remain directly opposite to the first air outlet 122, so that all the hot air in the air flow channel 120 is directly blown into the cold end component 41 for cooling. In addition, the setting of the accommodating cavity can also limit the installation position of the refrigeration fins 43 and the cold end component 41, so that the staff can install the refrigeration fins 43 and the cold end component 41 in place at one time, thereby improving the installation efficiency.

[0053] It should be noted that the water absorption portion 51 is in contact with the inner walls of the heat dissipation cavity 101, and the water absorption portion 51 is also in contact with the bottom wall of the heat dissipation cavity 101. In this way, when the cold end component 41 is arranged in the accommodating cavity, the side surface of the cold end component 41 away from the first air outlet 122 will be in contact with the water absorption portion 51 arranged on the bottom wall of the heat dissipation cavity 101. Since condensed water is generated after the hot air is cooled by the cold end component 41, the condensed water flowing out from the gaps between the grilles of the cold end component 41 will be absorbed by the water absorption portion 51 arranged on the bottom wall of the heat dissipation cavity 101, thereby preventing the condensed water from flowing into the heat dissipation cavity 101 and damaging the internal components.

[0054] Furthermore, the blocking member 511 provided in the water absorption part 51 is integrally formed with the water guiding member 5, which can simplify the manufacturing steps of the blocking member 511. The abutment between the cold end component 41 and the blocking member 511 also allows the condensed water generated when the cold end component 41 cools the hot air to be absorbed by the blocking member 511, so that the condensed water can be absorbed in all directions, thereby increasing the rate at which the condensed water is absorbed by the absorption part, and then increasing the rate at which the condensed water is discharged from the outside of the projector, effectively improving the cooling efficiency inside the projector.

[0055] In some embodiments, reference Figure 4 , the orthographic projection of the blocking member 511 on the cold end component 41 does not overlap with the second air outlet 412. That is, the second air outlet 412 will not be blocked by the blocking member 511, so that the blocking member 511 can maintain the positioning function of the cold end component and will not affect the normal air outlet of the second air outlet 412 of the cold end component.

[0056] In some embodiments, reference Figure 4The heat dissipation cavity 101 includes a first ventilation cavity 1011 and a second ventilation cavity 1012 arranged in parallel, and a connecting port 1013 is provided between the first ventilation cavity 1011 and the second ventilation cavity 1012; the heat dissipation fan 3 is arranged in the first ventilation cavity 1011, and the blowing end of the heat dissipation fan 3 faces the connecting port 1013; the side wall of the second ventilation cavity 1012 is provided with a third air outlet 1014, and the third air outlet 1014 is directly opposite to the optical component 2.

[0057] Through the above arrangement, the wind blown by the cooling fan 3 enters the second ventilation cavity 1012 from the connecting port 1013, and then enters the installation cavity 102 from the third air outlet 1014 to take away the heat emitted by the optical component 2, thereby improving the efficiency of cold air heat exchange and effectively improving the heat dissipation efficiency.

[0058] It should be noted that a third air outlet 1014 is provided on the side wall of the second ventilation cavity 1012, a first air inlet 121 is provided on the top shell 12, and the optical component 2 is respectively opposite to the third air outlet 1014 and the first air inlet 121, that is, the first air inlet 121 and the third air outlet 1014 are opposite to each other, and the optical component 2 is located between the first air inlet 121 and the third air outlet 1014, so that cold air can enter the installation cavity 102 from the third air outlet 1014 and blow directly on the optical component 2, taking away the heat emitted by the optical component 2 and entering the air flow channel 120 from the first air inlet 121, so that the heat emitted by the optical component 2 can be taken away more effectively, thereby achieving the purpose of quickly cooling the optical component 2.

[0059] In some embodiments, reference Figure 1 and Figure 3 The projector further includes an exhaust fan 6 , which is used for blowing air toward the evaporation portion 52 .

[0060] The exhaust fan 6 is arranged outside the shell 1, and the exhaust fan 6 blows air toward the evaporation part 52. Since the evaporation part 52 is connected to the hot end component, the hot end component will heat the evaporation part 52 so that the condensed water contained in the evaporation part 52 evaporates. Through the setting of the exhaust fan 6, the water vapor generated by the evaporated condensed water can be blown away, and the evaporation of the condensed water contained in the evaporation part 52 is accelerated, which is conducive to the rapid discharge of the condensed water from the inside of the projector.

[0061] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A projector, characterized in that: include: A housing (1) comprises a bottom housing (11) and a top housing (12), wherein the bottom housing (11) and the top housing (12) enclose a heat dissipation cavity (101) and a mounting cavity (102) which are in communication with each other, wherein the heat dissipation cavity (101) has a heat dissipation port (100), and an air flow channel (120) is provided in the top housing (12), and the air flow channel (120) is in communication with the heat dissipation cavity (101) and the mounting cavity (102) respectively; An optical component (2) installed in the installation cavity (102); A heat dissipation fan (3) is disposed in the heat dissipation cavity (101), and the heat dissipation fan (3) blows air toward the installation cavity (102); A refrigerator (4) is arranged at the heat dissipation port (100), the refrigerator (4) comprising a cold end component (41) and a hot end component (42), the cold end component (41) being located in the heat dissipation cavity (101); The water guide member (5) comprises a water absorption portion (51) and an evaporation portion (52); the water absorption portion (51) is arranged in the heat dissipation cavity (101) and abuts against the inner wall of the heat dissipation cavity (101); and the evaporation portion (52) is connected to the hot end component (42).

2. The projector according to claim 1, characterized in that The hot end component (42) comprises a plurality of heat dissipation plates (421) arranged in parallel and at intervals, the evaporation portion (52) comprises a plurality of evaporation plates (521) arranged in parallel and at intervals, and the heat dissipation plates (421) are embedded between the evaporation plates (521).

3. The projector according to claim 1 or 2, characterized in that: The water guide member (5) is made of water guide cotton in one piece, and the water absorption portion (51) is in contact with the inner wall of each side of the heat dissipation cavity (101).

4. The projector according to claim 3, characterized in that: The top shell (12) is provided with a first air inlet (121) communicating with the installation cavity (102) and the air flow channel (120), and a first air outlet (122) communicating with the air flow channel (120) and the heat dissipation cavity (101); The first air inlet (121) is directly opposite to the optical component (2), and the first air outlet (122) is directly opposite to the cold end component (41).

5. The projector according to claim 4, characterized in that: The cold end component (41) comprises a second air inlet (411) and a second air outlet (412), wherein the second air inlet (411) is directly opposite to the first air outlet (122), and the second air outlet (412) is directly opposite to the cooling fan (3).

6. The projector according to claim 5, characterized in that: The water absorption portion (51) is provided with a blocking member (511), and a receiving cavity is formed between the blocking member (511) and the evaporation portion (52); The refrigerator (4) further comprises a refrigeration fin (43) arranged between the cold end component (41) and the hot end component (42); the refrigeration fin (43) and the cold end component (41) are both arranged in the accommodating cavity, and the refrigeration fin (43) abuts against the evaporation part (52), and the cold end component (41) abuts against the blocking member (511).

7. The projector according to claim 6, characterized in that: The orthographic projection of the blocking member (511) on the cold end component (41) does not overlap with the second air outlet (412).

8. The projector according to any one of claims 4 to 7, characterized in that: The heat dissipation cavity (101) comprises a first ventilation cavity (1011) and a second ventilation cavity (1012) arranged in parallel, and a communication port (1013) is provided between the first ventilation cavity (1011) and the second ventilation cavity (1012); The heat dissipation fan (3) is arranged in the first ventilation cavity (1011), and the blowing end of the heat dissipation fan (3) faces the communication port (1013); A third air outlet (1014) is provided on the side wall of the second ventilation cavity (1012), and the third air outlet (1014) is directly opposite to the optical component (2).

9. The projector according to claim 8, characterized in that: Also includes: An exhaust fan (6), wherein the exhaust fan (6) is used to blow air toward the evaporation portion (52).

10. The projector according to claim 9, characterized in that The top shell (12) comprises a top shell body (1201) and a cover plate (1202) detachably covered on the top shell body (1201).

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