Fully enclosed protective box

Abstract

The present invention discloses a fully enclosed protective box, which includes a sealed box body and a heat dissipation mechanism. A mounting plate is provided inside the sealed box body, which divides the inner cavity of the sealed box body into a mounting cavity and a heat dissipation cavity. An air inlet and an air outlet are provided at intervals on the mounting plate to connect the mounting cavity and the heat dissipation cavity. An electronic device is provided in the mounting cavity. A light-transmitting opening is provided on the outer wall of the sealed box body. A light-transmitting member is provided on the light-transmitting opening cover. The light-transmitting member is used to seal the light-transmitting opening. The heat dissipation mechanism includes a first heat dissipation assembly, which includes a cooling element, a cooling guide, and a heat dissipation member. The cooling element is installed in the sealed box body. The cooling guide and the heat dissipation member are respectively installed at the cooling end and the heating end of the cooling element. The cooling guide is located in the heat dissipation cavity, and the heat dissipation member extends out of the sealed box body. Air circulation is formed in the sealed box body to cool the projector located in the mounting cavity, while preventing the projector from malfunctioning or being damaged due to severe dust accumulation inside the projector.

Description

Technical Field

[0001] The present invention relates to the technical field of imaging equipment, and in particular to a fully enclosed protective box. Background Art

[0002] As a convenient imaging device, projectors are widely used in venues such as industry press conferences and outdoor performances. When a projector is operating, the light source generates a significant amount of heat, especially in high-lumen projectors. Existing projectors generally use an open cooling system, where a fan draws outside air into the projector. The air then flows through the projector and out, removing the heat. This cooling system can still cause dust to accumulate inside the projector, even with a dust filter installed. Severe dust accumulation can cause the projector to malfunction or even damage.

[0003] In view of this, it is necessary to provide a new fully enclosed protective box to solve or at least alleviate the above technical defects. Summary of the Invention

[0004] The main purpose of the present invention is to provide a fully enclosed protective box, which aims to solve the technical problem that the heat dissipation method of the existing projector will cause serious dust accumulation inside the projector.

[0005] In order to achieve the above object, the present invention provides a fully enclosed protective box, which includes:

[0006] A sealed box, wherein a mounting plate is provided inside the sealed box, the mounting plate divides the inner cavity of the sealed box into a mounting cavity and a heat dissipation cavity, and the mounting plate is provided with an air inlet and an air outlet communicating with the mounting cavity and the heat dissipation cavity; electronic equipment is provided in the mounting cavity, and a light-transmitting opening is provided on the outer wall of the sealed box, and a light-transmitting member is provided on the light-transmitting opening cover, and the light-transmitting member is used to seal the light-transmitting opening;

[0007] The heat dissipation mechanism includes a first heat dissipation component, the first heat dissipation component includes a refrigeration element, a cooling element and a heat dissipation component, the refrigeration element is installed in the sealed box, the cooling element and the heat dissipation component are respectively installed at the cooling end and the heating end of the refrigeration element, the cooling element is located in the heat dissipation cavity, and the heat dissipation component extends out of the sealed box.

[0008] In one embodiment, a first baffle and a second baffle are arranged in the heat dissipation cavity, and the first baffle and the second baffle divide the heat dissipation cavity into an air inlet sub-cavity, a heat dissipation sub-cavity and an air outlet sub-cavity in sequence. The air inlet is connected to the air outlet sub-cavity and the installation cavity, and the air outlet is connected to the air inlet sub-cavity and the installation cavity. The first baffle and the second baffle are respectively provided with an air inlet hole and an air outlet hole. The first heat dissipation assembly also includes a first air duct member, which is located in the heat dissipation sub-cavity, the refrigeration element and the cold guide member are both located in the first air duct member, and the two ends of the first air duct member are respectively connected to the air inlet hole and the air outlet hole; the mounting plate is used to install the electronic device.

[0009] In one embodiment, the first heat dissipation assembly further includes a first fan, the first fan is mounted on the cooling member, and an air outlet side of the first fan is arranged toward the air outlet.

[0010] In one embodiment, the heat dissipation mechanism also includes a guide assembly, and the guide assembly includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate are respectively arranged in the air inlet sub-cavity and the air outlet sub-cavity, and the first guide plate is used to guide the airflow flowing from the air outlet into the air inlet sub-cavity to flow to the air inlet hole, and the second guide plate is used to guide the airflow flowing from the air outlet into the air outlet sub-cavity to flow to the air inlet.

[0011] In one embodiment, the guide assembly also includes a third guide plate, which is located in the mounting cavity and installed on the mounting plate. The third guide plate is arranged corresponding to the air outlet to guide the hot air flow generated by the electronic device to flow toward the air outlet; the third guide plate is arranged corresponding to the air outlet side of the electronic device.

[0012] In one embodiment, the first air duct member and the inner wall of the sealed box body form a first air duct cavity, and the two ends of the first air duct cavity are respectively connected to the air inlet and the air outlet. A through hole is opened on the inner wall of the sealed box body located in the first air duct cavity, and the through hole cover is provided with the heat dissipation member for sealing the through hole. The heat dissipation member is located outside the sealed box body, and the refrigeration element is located inside the through hole.

[0013] In one embodiment, the heat dissipation mechanism also includes a second heat dissipation component, and the second heat dissipation component also includes a second air duct member and a second fan. The second air duct member and the outer wall of the sealed box form a second air duct cavity. The heat dissipation member is located in the second air duct cavity. Both ends of the second air duct cavity are connected to the external environment. The second air duct member is provided with heat dissipation holes. The second fan is installed on the second air duct member and arranged corresponding to the heat dissipation holes. The air outlet side of the second fan faces the heat dissipation member.

[0014] In one embodiment, the heat dissipation mechanism includes a fan assembly, the fan assembly includes an air inlet fan, the air inlet fan is arranged corresponding to the air inlet, and the air outlet side of the air inlet fan is arranged toward the installation cavity.

[0015] In one embodiment, the fan assembly further includes an air outlet fan, which is arranged corresponding to the air outlet, and the air outlet side of the air outlet fan is arranged toward the heat dissipation cavity.

[0016] In one embodiment, the sealed box includes a box body and a cover plate hinged to the box body, the mounting plate is arranged in the box body, the mounting plate divides the inner cavity of the box body into a mounting cavity and a heat dissipation cavity, the outer wall of the box body is provided with a light-transmitting opening, the refrigeration element is installed in the box body, the heat dissipation element extends out of the box body, the box body is provided with an opening connected to the mounting cavity, and the cover plate is used to cover or expose the opening so that the mounting cavity is isolated from or connected to the external environment.

[0017] In the above technical solution of the present invention, the electronic device can be a projector, a camera or a still camera, etc. Taking the projector as an example, the projector is installed on the mounting plate, and the projector is located in the mounting cavity. The projector can project an image through the light-transmitting port. When the projector is working, the heat generated will flow from the mounting cavity through the air outlet into the heat dissipation cavity. A refrigeration element is provided in the heat dissipation cavity, and a cooling element is installed at the cooling end of the refrigeration element for reducing the temperature of the air flow flowing into the heat dissipation cavity. The air flow with reduced temperature flows from the heat dissipation cavity through the air inlet into the mounting cavity, and then enters the projector to cool the projector. In addition, the heat generated by the refrigeration element is dissipated through the heat dissipation element installed at the heating end and extending out of the sealed box, thereby ensuring the normal operation of the refrigeration element, and then realizing the formation of air circulation in the sealed box to cool the projector located in the mounting cavity, thereby ensuring the normal operation of the projector; since the projector is located in the sealed box, dust or water vapor in the external environment is not easy to enter the projector, thereby avoiding the phenomenon of projector failure or damage due to serious dust accumulation inside the projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a fully enclosed protective box according to an embodiment of the present invention;

[0020] Figure 2 This is a partial structural diagram of a fully enclosed protective box according to an embodiment of the present invention;

[0021] Figure 3 This is a partial structural diagram of a fully enclosed protective box according to an embodiment of the present invention;

[0022] Figure 4 This is a partial structural diagram of a fully enclosed protective box according to an embodiment of the present invention;

[0023] Figure 5 This is a partial structural diagram of a fully enclosed protective box according to an embodiment of the present invention;

[0024] Figure 6 It is a bottom view schematic diagram of a partial structure of a fully enclosed protective box according to an embodiment of the present invention;

[0025] Figure 7 for Figure 6 The schematic cross-sectional view of the fully enclosed protective box at position AA is shown;

[0026] Figure 8 It is a bottom view schematic diagram of a partial structure of a fully enclosed protective box according to an embodiment of the present invention;

[0027] Figure 9 for Figure 8 The schematic cross-sectional view of the fully enclosed protective box at position BB is shown;

[0028] Figure 10 This is a partial structural diagram of a fully enclosed protective box according to an embodiment of the present invention.

[0029] Description of Figure Numbers:

[0030] 1 Fully enclosed protective box 11 Sealed box 111 Box body 1111 Mounting plate 1112 through-hole 1113 Opening 112 Cover 113 Lock 114 Mounting cavity 115 heat dissipation cavity 1151 Air outlet cavity 1152 Air inlet cavity 1153 Heat dissipation cavity 116 air outlet 117 air inlet 118 Light port 119 First baffle 1191 air inlet 120 Second baffle 1201 air outlet 12 Heat dissipation mechanism 121 First heat dissipation component 1211 Refrigeration elements 1212 Cooling parts 1213 heat sink 1214 First air duct piece 1215 First Fan 1216 First air duct cavity 122 Second heat dissipation component 1221 Second air duct component 1222 Second fan 1223 Second air duct cavity 1224 heat dissipation holes 123 Diversion components 1231 First guide plate 1232 Second guide plate 1233 The third guide plate 13 Control module 2 projector

[0031] The realization of the objectives, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the position of the user in a specific posture (such as the attached Figure 1The relative position relationship and movement conditions of the components below are shown. If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one of these features.

[0035] Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides a fully enclosed protective box 1, such as Figures 1 to 4 As shown, the fully enclosed protective box 1 includes a sealed box body 11 and a heat dissipation mechanism 12. A mounting plate 1111 is provided inside the sealed box body 11. The mounting plate 1111 divides the inner cavity of the sealed box body 11 into a mounting cavity 114 and a heat dissipation cavity 115. The mounting plate 1111 is provided with an air inlet 117 and an air outlet 116 connecting the mounting cavity 114 and the heat dissipation cavity 115. The mounting cavity 114 is provided with electronic equipment. The outer wall of the sealed box body 11 is provided with a light-transmitting port 118, and the light-transmitting port 118 covers the inner cavity of the sealed box body 11. A light-transmitting member is provided, which is used to seal the light-transmitting port 118; the heat dissipation mechanism 12 includes a first heat dissipation component 121, which includes a cooling element 1211, a cooling member 1212 and a heat dissipation member 1213. The cooling element 1211 is installed in the sealed box 11, and the cooling member 1212 and the heat dissipation member 1213 are respectively installed at the cooling end and the heating end of the cooling element 1211. The cooling member 1212 is located in the heat dissipation cavity 115, and the heat dissipation member 1213 extends out of the sealed box 11.

[0037] The electronic device can be a projector 2, a camera or a still camera. Taking the projector 2 as an example, the projector 2 is installed on the mounting plate 1111. The projector 2 is located in the mounting cavity 114. The projector 2 can project an image through the light-transmitting port 118. The light-transmitting port 118 can be opened on the outer wall of the mounting cavity 114 or on the outer wall of the heat dissipation cavity 115. If the light-transmitting port 118 is opened on the outer wall of the mounting cavity 114, the lens of the projector 2 is set corresponding to the light-transmitting port 118. If the light-transmitting port 118 is opened on the outer wall of the heat dissipation cavity 115, the lens of the projector 2 can be adjusted by adjusting the light-transmitting port 118. The angle of the light output from the lens of the projector 2 is such that the light output from the lens of the projector 2 can be emitted from the light-transmitting port 118, or a mirror can be added to reflect the light by the mirror so that the light output from the projector 2 can be emitted from the light-emitting port after being reflected by the mirror. When the projector 2 is working, the heat generated will flow from the installation cavity 114 through the air outlet 116 into the heat dissipation cavity 115. A cooling element 1211 is provided in the heat dissipation cavity 115, wherein the cooling element 1211 can be a semiconductor cooling plate, and a cooling end of the cooling element 1211 is provided with a cooling member 1212 for reducing the heat flowing into the heat dissipation cavity 115. The air flow temperature inside the heat dissipation chamber 115 is lowered, and the air flow after the temperature is reduced flows into the installation chamber 114 through the air inlet 117 from the heat dissipation chamber 115, and then enters the interior of the projector 2 to cool the projector 2. In addition, the heat generated by the refrigeration element 1211 is dissipated by the heat dissipation member 1213 installed at the heating end and extending outside the sealed box 11, wherein the heat dissipation member 1213 can be extended from the heat dissipation chamber 115 to the external environment, and the heat dissipation member 1213 is dissipated by the external environment, and the heat dissipation member 1213 does not pass through the installation chamber 114, and the heat dissipation member 1213 and the sealed box 11 are not connected. The joint is sealed to ensure the sealing of the sealed box 11; the cooling element 1211 reduces the temperature of the heating end through the heat sink 1213, thereby ensuring the normal operation of the cooling element 1211, and further realizing the formation of air circulation in the sealed box 11 to cool the projector 2 located in the installation cavity 114, thereby ensuring the normal operation of the projector 2; because the projector 2 is located in the sealed box 11, dust or water vapor in the external environment is not easy to enter the projector 2, avoiding the phenomenon of serious dust accumulation inside the projector 2 causing malfunction or damage to the projector 2. It should be noted that the sealed box 11 can achieve an IP66 waterproof rating. It should also be noted that the projector 2 and the cooling element 1211 located in the sealed box 11 can be powered by a built-in power supply located in the sealed box 11, or by a power cord relying on a power supply outside the sealed box 11, and the joint between the power cord and the sealed box 11 is sealed. It should also be noted that semiconductor refrigeration chips utilize the Peltier effect of semiconductor materials. When direct current passes through a galvanic couple composed of two different semiconductor materials connected in series, heat can be absorbed and released at both ends of the galvanic couple respectively, thereby achieving the purpose of cooling.

[0038] According to one embodiment of the present invention, the installation cavity 114 is located below the heat dissipation cavity 115, and the air outlet side of the projector 2 is arranged opposite the air outlet 116. Since the specific gravity of the hot air flow is smaller than that of the cold air flow, the hot air flow generated by the projector 2 will rise, and rise from the installation cavity 114 through the air outlet 116 to the heat dissipation cavity 115. After the hot air flow is cooled by the cooling member 1212, it will fall, and fall from the heat dissipation cavity 115 through the air inlet 117 to the installation cavity 114, and then enter the projector 2 to cool the projector 2. The characteristics of hot and cold air are used to guide the movement of the air flow, thereby enhancing the internal circulation effect of the air in the closed box 11.

[0039] In one embodiment, if Figure 1 and Figure 7 As shown, a first baffle 119 and a second baffle 120 are arranged in the heat dissipation cavity 115, and the first baffle 119 and the second baffle 120 divide the heat dissipation cavity 115 into an air inlet sub-cavity 1152, a heat dissipation sub-cavity 1153 and an air outlet sub-cavity 1151 in sequence. The air inlet 117 connects the air outlet sub-cavity 1151 and the installation cavity 114, and the air outlet 116 connects the air inlet sub-cavity 1152 and the installation cavity 114. The first baffle 119 and the second baffle 120 are respectively provided with an air inlet hole 1191 and an air outlet hole 1201. The first heat dissipation assembly 121 also includes a first air duct member 1214, which is located in the heat dissipation sub-cavity 1153. The refrigeration element 1211 and the cold conduction member 1212 are both located in the first air duct member 1214, and the two ends of the first air duct member 1214 are respectively connected to the air inlet hole 1191 and the air outlet hole 1201; the mounting plate 1111 is used to install electronic equipment. By setting the first baffle 119 and the second baffle 120, the heat dissipation cavity 115 is divided into an air inlet sub-cavity 1152 connected to the air outlet 116, an air outlet sub-cavity 1151 connected to the air inlet 117, and a heat dissipation sub-cavity 1153 located between the air inlet sub-cavity 1152 and the air outlet sub-cavity 1151; the hot air flow generated by the projector 2 enters the air inlet sub-cavity 1152 from the installation cavity 114 through the air outlet 116, and then enters the first air duct member 1214 through the air inlet hole 1191. Component 1214 is used to guide the hot air flow generated by the projector 2 to flow through the cooling component 1212, and the hot air flow is cooled by the cooling component 1212. Compared with the case where the first air duct component 1214 is not added, the cooling effect of the hot air flow is improved; the cooled air flow then flows out of the first air duct component 1214 from the air outlet hole 1201 and enters the air outlet sub-cavity 1151, and then enters the installation cavity 114 from the air outlet sub-cavity 1151 through the air inlet 117, thereby cooling the projector 2 located in the installation cavity 114.

[0040] According to an embodiment of the present invention, Figures 3 to 5As shown, the number of first heat dissipation components 121 is at least two, the first baffle 119 is provided with at least two air inlet holes 1191, each air inlet hole 1191 corresponds to a first air duct component 1214, or at least two first air duct components 1214 share one air inlet hole 1191; the second baffle 120 is provided with at least two air outlet holes 1201, each air outlet hole 1201 corresponds to a first air duct component 1214, or at least two first air duct components 1214 share one air outlet hole 1201.

[0041] According to a preferred embodiment of the present invention, the number of first heat dissipation components 121 is two, the first baffle 119 is provided with two air inlet holes 1191, each air inlet hole 1191 corresponds to a first air duct member 1214, the second baffle 120 is provided with an air outlet hole 1201, the two first air duct members 1214 share one air outlet hole 1201, and the two first air duct members 1214 are arranged at intervals. The fully enclosed protective box 1 also includes a control module 13, which is electrically connected to the cooling element 1211 and the first fan 1215. The control module 13 is arranged close to the air outlet hole 1201, so that the cold air flow flowing from the air outlet hole 1201 into the heat dissipation sub-cavity 1153 can cool the control module 13, thereby ensuring the normal operation of the control module 13.

[0042] like Figures 3 to 5 and Figure 8 As shown, the first heat dissipation assembly 121 further includes a first fan 1215, which is mounted on the cooling member 1212, with the air outlet side of the first fan 1215 facing the air outlet 1201. By installing the first fan 1215 on the first heat dissipation member 1213, the first fan 1215 accelerates the air flow rate within the first air duct member 1214, thereby accelerating the air circulation speed within the sealed housing 11 and improving the cooling effect on the projector 2.

[0043] like Figure 6 and Figure 7As shown, the heat dissipation mechanism 12 also includes a guide assembly 123, which includes a first guide plate 1231 and a second guide plate 1232. The first guide plate 1231 and the second guide plate 1232 are respectively arranged in the air inlet sub-cavity 1152 and the air outlet sub-cavity 1151. The first guide plate 1231 is used to guide the airflow flowing from the air outlet 116 into the air inlet sub-cavity 1152 to flow to the air inlet hole 1191, and the second guide plate 1232 is used to guide the airflow flowing from the air outlet hole 1201 into the air outlet sub-cavity 1151 to flow to the air inlet 117. The air flow flows from the air outlet 116 into the air inlet sub-chamber 1152, and under the guidance of the first guide plate 1231, enters the air inlet hole 1191 from the air inlet sub-chamber 1152. By setting the first guide plate 1231 to guide the air flow, the air flow can enter the air inlet hole 1191 more smoothly, thereby enhancing the internal circulation effect of the air in the closed box 11; the air flow flows out from the air outlet 1201, and under the guidance of the second guide plate 1232, smoothly enters the air inlet 117 from the air outlet sub-chamber 1151, thereby also enhancing the internal circulation effect of the air in the closed box 11.

[0044] Furthermore, the air guide assembly 123 includes a third air guide plate 1233, which is located within the mounting cavity 114 and mounted on the mounting plate 1111. The third air guide plate 1233 is positioned corresponding to the air outlet 116 to guide the hot air generated by the electronic device toward the air outlet 116. The third air guide plate 1233 is positioned corresponding to the air outlet side of the electronic device. The air outlet side of the projector 2 faces the third air guide plate 1233, allowing the hot air generated by the projector 2 to flow from the air outlet 116 into the air inlet sub-cavity 1152 under the guidance of the third air guide plate 1233. This enhances the internal circulation of air within the sealed enclosure 11, resulting in a more effective cooling effect of the fully enclosed protective enclosure 1 on the projector 2.

[0045] like Figure 5 、 Figure 8 and Figure 9 As shown, the first air duct member 1214 and the inner wall of the sealed box 11 form a first air duct cavity 1216. The two ends of the first air duct cavity 1216 are respectively connected to the air inlet hole 1191 and the air outlet hole 1201. The inner wall of the sealed box 11 located in the first air duct cavity 1216 is provided with a through hole 1112. The through hole 1112 is covered with a heat sink 1213 to seal the through hole 1112. The heat sink 1213 is located outside the sealed box 11, and the cooling element 1211 is located inside the through hole 1112. The airflow entering the first air duct member 1214 from the air inlet hole 1191 is cooled after passing through the cooling element 1212. The heat generated by the heating end of the cooling element 1211 is directly transferred to the heat sink 1213. Since the heat sink 1213 is located outside the sealed box 11, it can be dissipated by the external environment, thereby ensuring the normal operation of the cooling element 1211.

[0046] According to one embodiment of the present invention, there are multiple cooling elements 1211 and cooling conductors 1212. The multiple cooling elements 1211 are arranged at intervals along the extension direction of the first air duct member 1214. The multiple cooling elements 1211 share one heat sink 1213. By providing multiple cooling elements 1211, the cooling effect on the projector 2 is enhanced and the service life of the projector 2 is extended.

[0047] like Figures 8 to 10 As shown, the heat dissipation mechanism 12 also includes a second heat dissipation component 122, and the second heat dissipation component 122 also includes a second air duct member 1221 and a second fan 1222. The second air duct member 1221 and the outer wall of the sealed box 11 form a second air duct cavity 1223. The heat dissipation member 1213 is located in the second air duct cavity 1223. Both ends of the second air duct cavity 1223 are connected to the external environment. The second air duct member 1221 is provided with a heat dissipation hole 1224. The second fan 1222 is installed on the second air duct member 1221 and is arranged corresponding to the heat dissipation hole 1224. The air outlet side of the second fan 1222 faces the heat dissipation member 1213. The second fan 1222 is positioned corresponding to the heat dissipation holes 1224, allowing the second fan 1222 to blow outside air toward the heat sink 1213. Under the guidance of the second air duct member 1221, the airflow blown by the fan dissipates heat from the entire heat sink 1213. Compared to dissipating heat locally on the heat sink 1213, dissipating heat from the entire heat sink 1213 achieves better heat dissipation and more uniform temperature distribution on the heat sink 1213, which is more conducive to ensuring the normal operation of one or more cooling elements 1211. It should be noted that outside air enters the second air duct cavity 1223 through the heat dissipation holes 1224, flows through the heat sink 1213, removes heat from the heat sink 1213, and then flows out from both ends of the second air duct member 1221 to the outside environment, thereby dissipating heat from the heat sink 1213. It should be noted that the second fan 1222 can be installed on the outside or inside of the second air duct member 1221. According to a preferred embodiment of the present invention, the second fan 1222 is installed on the inner side of the second air duct member 1221 to make the appearance of the fully enclosed protective box 1 more beautiful and also to prevent dust from accumulating on the second fan 1222 .

[0048] According to an embodiment of the present invention, there are multiple second fans 1222 , and the multiple second fans 1222 are spaced apart along the extension direction of the second air duct member 1221 to enhance the heat dissipation effect of the heat dissipation member 1213 .

[0049] Furthermore, the heat dissipation mechanism 12 includes a fan assembly, which includes an air intake fan. The air intake fan is positioned corresponding to the air inlet 117, with the air outlet side of the air intake fan facing the mounting cavity 114. By positioning the air intake fan at the air inlet 117, the airflow within the outlet sub-cavity 1151 is accelerated to enter the mounting cavity 114 from the air inlet 117, thereby cooling the projector 2 within the mounting cavity 114 and enhancing the air circulation within the fully enclosed protective box 1.

[0050] Furthermore, the fan assembly also includes an outlet fan, which is positioned corresponding to the air outlet 116 and whose outlet side faces the heat dissipation cavity 115. By positioning the outlet fan at the air outlet 116, the hot air within the mounting cavity 114 is accelerated to flow from the air outlet 116 into the air inlet sub-cavity 1152, thereby enhancing the air circulation within the fully enclosed protective box 1 and further facilitating heat dissipation for the projector 2.

[0051] like Figure 1 、 Figure 5 and Figure 10 As shown, the sealed box 11 includes a box body 111 and a cover 112 hinged to the box body 111, a mounting plate 1111 is provided in the box body 111, the mounting plate 1111 divides the inner cavity of the box body 111 into a mounting cavity 114 and a heat dissipation cavity 115, the outer wall of the box body 111 is provided with a light-transmitting opening 118, the cooling element 1211 is installed in the box body 111, the heat dissipation element 1213 extends out of the box body 111, the box body 111 is provided with an opening 1113 connected to the mounting cavity 114, and the cover 112 is used to cover or expose the opening 1113 so that the mounting cavity 114 is isolated from or connected to the external environment. By setting the cover 112, it is convenient to install or remove the projector 2 when the cover 112 is in the open state. When the cover 112 is in the closed state, the opening 1113 of the installation cavity 114 is blocked, so that a closed space is formed inside the box body 111, preventing external dust or water vapor from entering the box body 111, thereby avoiding dust accumulation inside the projector 2.

[0052] According to one embodiment of the present invention, the box body 111 is further provided with a lock 113, which is used to lock the cover 112 in a closed state to prevent the cover 112 from automatically opening due to gravity when the box body 111 is placed downward. According to another embodiment of the present invention, a tension spring can be provided in the box body 111, with one end of the tension spring connected to the box body 111 and the other end of the tension spring connected to the cover 112, and the tension spring is used to pull the cover 112 closed.

[0053] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields within the concept of the present invention are included in the patent protection scope of the present invention.

Claims

1. A fully enclosed protective box, characterized in that: include: A sealed box, wherein a mounting plate is provided inside the sealed box, the mounting plate divides the inner cavity of the sealed box into a mounting cavity and a heat dissipation cavity, and the mounting plate is provided with an air inlet and an air outlet communicating with the mounting cavity and the heat dissipation cavity; electronic equipment is provided in the mounting cavity, and a light-transmitting opening is provided on the outer wall of the sealed box, and a light-transmitting member is provided on the light-transmitting opening cover, and the light-transmitting member is used to seal the light-transmitting opening; The heat dissipation mechanism includes a first heat dissipation assembly, the first heat dissipation assembly includes a refrigeration element, a cooling member and a heat dissipation member, the refrigeration element is installed in the sealed box, the cooling member and the heat dissipation member are respectively installed at the cooling end and the heating end of the refrigeration element, the cooling member is located in the heat dissipation cavity, and the heat dissipation member extends out of the sealed box; A first baffle and a second baffle are provided in the heat dissipation cavity, the first baffle and the second baffle divide the heat dissipation cavity into an air inlet sub-cavity, a heat dissipation sub-cavity and an air outlet sub-cavity in sequence, the air inlet is connected to the air outlet sub-cavity and the mounting cavity, and the air outlet is connected to the air inlet sub-cavity and the mounting cavity, the first baffle and the second baffle are respectively provided with an air inlet hole and an air outlet hole, the first heat dissipation assembly further includes a first air duct member, the first air duct member is located in the heat dissipation sub-cavity, the refrigeration element and the cold conducting member are both located in the first air duct member, and two ends of the first air duct member are respectively connected to the air inlet hole and the air outlet hole; the mounting plate is used for mounting the electronic device; The number of the first heat dissipation components is at least two, the air inlet holes are consistent with the number of the first heat dissipation components and are arranged in a one-to-one correspondence, and the air outlet holes are consistent with the number of the first heat dissipation components and are arranged in a one-to-one correspondence.

2. The fully enclosed protective box according to claim 1, characterized in that: The first heat dissipation component further includes a first fan, which is mounted on the cooling member, and an air outlet side of the first fan is arranged toward the air outlet.

3. The fully enclosed protective box according to claim 1, characterized in that: The heat dissipation mechanism also includes a guide assembly, which includes a first guide plate and a second guide plate. The first guide plate and the second guide plate are respectively arranged in the air inlet sub-cavity and the air outlet sub-cavity. The first guide plate is used to guide the airflow flowing from the air outlet into the air inlet sub-cavity to flow to the air inlet hole, and the second guide plate is used to guide the airflow flowing from the air outlet into the air outlet sub-cavity to flow to the air inlet.

4. The fully enclosed protective box according to claim 3, characterized in that: The guide assembly also includes a third guide plate, which is located in the mounting cavity and installed on the mounting plate. The third guide plate is arranged corresponding to the air outlet to guide the hot air flow generated by the electronic device to flow toward the air outlet; the third guide plate is arranged corresponding to the air outlet side of the electronic device.

5. The fully enclosed protective box according to claim 1, characterized in that: The first air duct member and the inner wall of the sealed box body form a first air duct cavity, and the two ends of the first air duct cavity are respectively connected to the air inlet and the air outlet. The inner wall of the sealed box body located in the first air duct cavity is provided with a through hole, and the through hole cover is provided with the heat dissipation member for sealing the through hole. The heat dissipation member is located outside the sealed box body, and the refrigeration element is located inside the through hole.

6. The fully enclosed protective box according to claim 5, characterized in that: The heat dissipation mechanism also includes a second heat dissipation component, and the second heat dissipation component also includes a second air duct member and a second fan. The second air duct member and the outer wall of the sealed box form a second air duct cavity. The heat dissipation member is located in the second air duct cavity. Both ends of the second air duct cavity are connected to the external environment. The second air duct member is provided with heat dissipation holes. The second fan is installed on the second air duct member and arranged corresponding to the heat dissipation holes. The air outlet side of the second fan faces the heat dissipation member.

7. The fully enclosed protective box according to any one of claims 1 to 6, characterized in that: The heat dissipation mechanism includes a fan assembly, and the fan assembly includes an air inlet fan. The air inlet fan is arranged corresponding to the air inlet, and the air outlet side of the air inlet fan is arranged toward the installation cavity.

8. The fully enclosed protective box according to claim 7, characterized in that: The fan assembly further includes an air outlet fan, which is arranged corresponding to the air outlet, and the air outlet side of the air outlet fan is arranged toward the heat dissipation cavity.

9. The fully enclosed protective box according to any one of claims 1 to 6, characterized in that: The sealed box includes a box body and a cover plate hinged to the box body. The mounting plate is arranged in the box body, and the mounting plate divides the inner cavity of the box body into a mounting cavity and a heat dissipation cavity. The outer wall of the box body is provided with a light-transmitting opening. The refrigeration element is installed in the box body, and the heat dissipation element extends out of the box body. The box body is provided with an opening connected to the mounting cavity. The cover plate is used to cover or expose the opening so that the mounting cavity is isolated from or connected to the external environment.

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