LED lamp box with automatic heat dissipation function

Abstract

The utility model relates to the technical field of lamp boxes, in particular to an LED lamp box with an automatic heat dissipation function, which comprises a box body, the front side of the box body is connected with a fixing frame through bolts, the fixing frame is provided with a transparent protection panel, the bottom of the rear side of the box body is provided with a rectangular installation opening, and a heat dissipation assembly is arranged at the rectangular installation opening. The heat dissipation assembly comprises a rectangular box body with the front side being of an opening structure, a mounting partition plate is arranged in the rectangular box body, two air guide ports which are symmetrically arranged left and right are formed in the front side of the mounting partition plate, fans are arranged at the two air guide ports, and a strip-shaped air inlet is formed in the rear side of the bottom of the inner wall of the rectangular box body. A strip-shaped exhaust port is formed in the position, close to the top, of the rear side of the box body, a dustproof net is arranged in the strip-shaped exhaust port, and a rain shielding cover for shielding rain for the strip-shaped exhaust port is arranged on the rear side of the box body. According to the LED lamp box with the automatic heat dissipation function, the fan in the heat dissipation assembly forcibly drives air to flow, external cold air is actively sucked in, internal high-temperature gas is exhausted, and the heat dissipation efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lamp box, concretely is LED lamp box with automatic heat dissipation function. BACKGROUND

[0002] LED lamp box is a kind of equipment widely used in advertising display, utilizes LED light source to provide high brightness, low energy consumption lighting effect.Its structure is usually composed of lamp box shell, light-transmitting panel, LED light source and heat dissipation system etc.Part.Because LED lamp will generate heat in the working process, therefore effective heat dissipation function is important to maintain its performance and prolong service life.In common LED lamp box design, usually set up netlike ventilating hood to promote air circulation.However, these ventilating hoods usually do not have active ventilation function, leading to poor air flow, and the heat dissipation effect is not ideal.After long time use, the temperature in the lamp box will gradually increase, and the high temperature can cause the light efficiency of LED lamp tube to drop, even cause failure, seriously, it can affect the normal use and safety of the lamp box.This situation not only reduces the service life of LED lamp, but also brings potential safety hazards to users.

[0003] The patent with disclosure number CN219958486U discloses an LED lamp box with heat dissipation function, which comprises a fixing frame, a light-transmitting panel, fixing bolts and a box structure, the filter dust removal structure comprises a fixed frame, a power motor, toothed rollers, filter gauze and a dust removal brush, the fixed frame is internally provided with the toothed rollers, the power motor is connected and fixed on one side of the fixed frame, one end of the power motor is connected and fixed with one end of the toothed roller, the filter gauze is sleeved on the plurality of toothed rollers, the dust removal brush is arranged in the fixed frame, the box structure comprises a box, an LED lamp tube, a filter ventilation net, a fan module and a filter dust removal structure, one side of the fan module is connected and fixed with one side of the filter dust removal structure, the filter dust removal structure penetrates through one side of the box and is arranged, the filter ventilation net is arranged through one side of the box away from the filter dust removal structure, the box is internally provided with the LED lamp tube, and one side of the light-transmitting panel is sealingly attached to one side of the opening of the box.

[0004] The above prior art inhales external air by fan module and introduces it into the box, then high-temperature air is discharged through filter ventilation net, so as to realize heat dissipation.However, the defects of the prior art are that the design of filter ventilation net and filter dust removal structure exposes air holes on the side of the box, which can cause rainwater and other external factors to enter when used in outdoor environment, causing damage and failure of the equipment, thus limiting the application range of the LED lamp box.In view of this, in view of the defects of the prior art, we propose an LED lamp box with automatic heat dissipation function, aiming at improving the heat dissipation efficiency and expanding the application scenarios, to ensure safe and reliable use in outdoor environment. UTILITY MODEL CONTENT

[0005] The LED lamp box with automatic heat dissipation function aims at solving the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The LED lamp box with automatic heat dissipation function comprises a box body, the box body is used for accommodating internal components and supporting a heat dissipation system as a main structure, and the LED lamp box comprises a reflecting plate, an LED lamp, a light guide plate and an advertising paper, Figure 1 As shown in the figure, the front side of the box body is connected with a fixed frame through bolts, the fixed frame is used for fixing a transparent protection panel and sealing the front side of the box body, a transparent protection panel is arranged on the fixed frame, and the transparent protection panel is used for transmitting light for pedestrians to watch the advertising paper;

[0008] As shown in the figure, Figure 4 and Figure 5 As shown in the figure, a rectangular mounting opening is arranged at the bottom of the rear side of the box body, the rectangular mounting opening is used for mounting a heat dissipation component and providing a heat dissipation air channel, a heat dissipation component is arranged at the rectangular mounting opening, the heat dissipation component is used for actively sucking external air and introducing the filtered air into the box body, the heat dissipation component comprises a rectangular box body with an open structure at the front side, the rectangular box body is used as a shell of the heat dissipation component and guides the air flow direction, an installation partition plate is arranged in the rectangular box body, the installation partition plate is used for separating the air flow channel and fixing a fan, two air guide openings that are symmetrically arranged left and right are arranged at the front side of the installation partition plate, the air guide openings are used for concentrating air flow and driving air flow through the fan, a fan is arranged at each of the two air guide openings, the fan is powered by a power supply system of the LED lamp box, and the fan is used for forcibly sucking external cold air and discharging hot air in the box body;

[0009] As shown in the figure, Figure 5 and Figure 6 As shown in the figure, a strip-shaped air inlet is arranged at the rear side of the bottom of the inner wall of the rectangular box body, the strip-shaped air inlet is located behind the installation partition plate, and the strip-shaped air inlet is used for allowing external air to enter the rectangular box body, a rectangular air inlet pipe is arranged at the bottom of the rectangular box body and located at the strip-shaped air inlet, the rectangular air inlet pipe is used for connecting a filter screen plate and guiding air into the box body, a first filter screen plate and a second filter screen plate are sequentially arranged in the rectangular air inlet pipe from bottom to top, the first filter screen plate is used for intercepting large-particle pollutants, and the second filter screen plate is used for filtering fine dust;

[0010] As shown in the figure, Figure 4 As shown in the figure, a strip-shaped air outlet is arranged at the rear side of the box body and close to the top, the strip-shaped air outlet is used for discharging hot air in the box body, a dustproof screen is arranged in the strip-shaped air outlet, the dustproof screen is used for preventing external dust from entering the box body through the air outlet in the reverse direction, and a rain cover is arranged at the rear side of the box body and used for shielding rain and guiding hot air to be discharged downward.

[0011] Preferably, as shown in Figure 3 The gap between the outer wall of the rectangular box body and the inner wall of the rectangular mounting port is filled with a rubber strip, which is used to seal the gap between the heat dissipation assembly and the box body to prevent air leakage or water ingress.

[0012] Preferably, as shown in Figure 5 Both sides of the rectangular box body are provided with a first mounting seat, which is installed on the rear side of the box body by bolts, and the first mounting seat is used to fix the heat dissipation assembly on the rear side of the box body by bolts.

[0013] The filter hole size of the first filter screen is larger than that of the second filter screen, and the first filter screen and the second filter screen form a double filtration system to improve the dustproof effect. The rear side of the first filter screen and the second filter screen is connected with a strip-shaped cover plate, the front side of the strip-shaped cover plate is fitted with the rear side of the rectangular air inlet pipe, and the strip-shaped cover plate can facilitate the disassembly and assembly of the first filter screen and the second filter screen.

[0014] The rear side of the rectangular air inlet pipe is provided with a strip-shaped hole a and a strip-shaped hole b for the first filter screen and the second filter screen to pass through, respectively.

[0015] Preferably, as shown in Figure 7 Both sides of the inner wall of the rectangular air inlet pipe are provided with fixing blocks, which are used to fix the position of the filter screen through the slot. The middle and lower parts of the opposite sides of the two fixing blocks are provided with a first U-shaped slot for fixing the position of the first filter screen, which is used to clamp the first filter screen and ensure its stability. The middle and upper parts of the opposite sides of the two fixing blocks are provided with a second U-shaped slot for fixing the position of the second filter screen, which is used to clamp the second filter screen and prevent it from falling off.

[0016] Preferably, as shown in Figure 8 The front side of the rain cover is bonded with a rubber pad, and the front side of the rubber pad is tightly fitted with the rear side of the box body. The rubber pad is used to enhance the sealing between the rain cover and the box body. The rear side of the box body and close to the outer edge of the strip-shaped exhaust port is provided with a U-shaped alignment plate with the opening downward. The inner wall of the rain cover is fitted with the outer wall of the U-shaped alignment plate, and the U-shaped alignment plate is used to position the rain cover and limit its installation direction.

[0017] The top of the rain cover is provided with two second mounting seats which are symmetrically arranged left and right. The second mounting seat is installed on the rear side of the box body by bolts, and the second mounting seat is used to fix the rain cover on the rear side of the box body by bolts.

[0018] Preferably, as shown in Figure 2As shown, the rear side of the box and the position close to the bottom of the strip-shaped exhaust port is provided with a flow guide plate, the flow guide plate is arranged downwardly inclined, the flow guide plate guides the hot air flow output from the rain cover to the rear, avoiding the hot air flow from contacting the box.

[0019] Preferably, as Figure 1 As shown, the right side of the box is provided with two mounting racks, the mounting racks are mounted on the wall surface through bolts, and the mounting racks are used for fixing the lamp box as a whole on the wall surface or other support structure.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] 1. The LED lamp box with automatic heat dissipation function forcibly drives air flow through the fan in the heat dissipation assembly, actively inhales external cold air and discharges internal high-temperature gas, significantly improves heat dissipation efficiency, effectively avoids the problem of excessively high internal temperature caused by long-time work of the LED lamp, ensures stable light efficiency and prolongs service life.

[0022] 2. The LED lamp box with automatic heat dissipation function adopts the combined design of the rain cover and the sealing rubber pad, completely blocks the invasion of external environment such as rainwater and dust while realizing efficient heat dissipation, breaks through the limitation that the traditional lamp box cannot be used outdoors due to exposed air holes, and expands the application scene.

[0023] 3. The LED lamp box with automatic heat dissipation function intercepts large-particle pollutants through the first filter screen plate, and the second filter screen plate further filters fine dust, so that double protection reduces internal dust accumulation, reduces maintenance frequency, and avoids the decline of heat dissipation performance caused by dust accumulation.

[0024] 4. The LED lamp box with automatic heat dissipation function guides the discharged hot air to the rear through the inclined flow guide plate, avoids the backflow of hot air to the surface of the lamp box or the mixing of external cold air, further improves the heat dissipation efficiency, and prevents the secondary heating of hot air to the lamp box shell. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole first visual angle structural schematic view of the utility model;

[0026] Figure 2 It is a whole second visual angle structural schematic view of the utility model;

[0027] Figure 3 It is a partial structural schematic view of the utility model;

[0028] Figure 4 It is a partial assembly structural schematic view of the utility model;

[0029] Figure 5 It is an exploded structural schematic view of the heat dissipation assembly in the utility model;

[0030] Figure 6 It is the cross section structure schematic view of the rectangular box body in the utility model;

[0031] Figure 7 It is the cross section structure schematic view of the rectangular air inlet pipe in the utility model;

[0032] Figure 8 It is the rain cover structure schematic view in the utility model;

[0033] In the drawing: 1, box body;10, rectangular mounting port;11, strip-shaped exhaust port;12, U-shaped alignment plate;2, fixed frame;20, transparent protection panel;3, heat dissipation assembly;30, rectangular box body;300, strip-shaped air inlet;301, first mounting seat;31, mounting partition;310, air guide port;32, fan;33, rectangular air inlet pipe;330, strip-shaped hole a;331, strip-shaped hole b;34, first filter screen plate;35, second filter screen plate;36, strip-shaped cover plate;37, fixed block;370, first U-shaped slot;371, second U-shaped slot;4, dust screen;5, rain cover;50, rubber pad;51, second mounting seat;6, flow guide plate;7, mounting frame. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] Please refer to Figures 1-8 The utility model provides a technical scheme:

[0037] The LED lamp box with automatic heat dissipation function comprises a box body 1, which is used for containing internal components and supporting a heat dissipation system as a main structure. The LED lamp box comprises a reflecting plate, an LED lamp, a light guide plate and an advertising paper, as shown in Figure 1 The front side of the box body 1 is connected with a fixed frame 2 through bolts, and the fixed frame 2 is used for fixing a transparent protective panel 20 and sealing the front side of the box body 1. The fixed frame 2 is provided with the transparent protective panel 20, and the transparent protective panel 20 is used for transmitting light for pedestrians to watch the advertising paper.

[0038] As shown in Figure 4 and Figure 5 The bottom of the rear side of the box body 1 is provided with a rectangular mounting port 10, which is used for mounting a heat dissipation assembly 3 and providing a heat dissipation airflow channel. The heat dissipation assembly 3 is arranged at the rectangular mounting port 10, and the heat dissipation assembly 3 is used for actively sucking external air and introducing the filtered air into the box body 1. The heat dissipation assembly 3 comprises a rectangular box body 30 with an open structure at the front side, which is used as a shell of the heat dissipation assembly 3 and guides the airflow direction. The rectangular box body 30 is provided with an installation partition plate 31, which is used for separating the airflow channel and fixing a fan 32. The front side of the installation partition plate 31 is provided with two air guide ports 310 arranged in a left-right symmetrical manner. The air guide ports 310 are used for concentrating the airflow and driving the air flow through the fan 32. The two air guide ports 310 are each provided with the fan 32, which is powered by a power supply system of the LED lamp box and is used for forcibly sucking external cold air and discharging hot air in the box body 1.

[0039] As shown in Figure 5 and Figure 6 The rear side of the inner wall of the rectangular box body 30 is provided with a strip-shaped air inlet 300, which is located behind the installation partition plate 31. The strip-shaped air inlet 300 is used for the external air to enter the rectangular box body 30. The bottom of the rectangular box body 30 and at the strip-shaped air inlet 300 is provided with a rectangular air inlet pipe 33, which is used for connecting a filter screen plate and guiding the air to enter the box body 1. The rectangular air inlet pipe 33 is sequentially provided with a first filter screen plate 34 and a second filter screen plate 35 from bottom to top. The first filter screen plate 34 is used for intercepting large-particle pollutants, and the second filter screen plate 35 is used for filtering fine dust.

[0040] As shown in Figure 4 The rear side of the box body 1 and near the top is provided with a strip-shaped air outlet 11, which is used for discharging hot air in the box body 1. The strip-shaped air outlet 11 is provided with a dustproof screen 4, which is used for preventing external dust from entering the box body 1 through the air outlet in the reverse direction. The rear side of the box body 1 is provided with a rain cover 5 for the strip-shaped air outlet 11, which is used for blocking rainwater and guiding the hot air to be discharged downward.

[0041] In this embodiment, as shown in Figure 3As shown, the front side of the rectangular box 30 is located in the cabinet 1, and the gap between the outer wall of the rectangular box 30 and the inner wall of the rectangular mounting port 10 is filled with a rubber strip, which is used to seal the gap between the heat dissipation assembly 3 and the cabinet 1, preventing air leakage or water ingress.

[0042] Specifically, as shown in the figure, Figure 5 As shown, the left and right sides of the rectangular box 30 are each provided with a first mounting seat 301, which is mounted to the rear side of the cabinet 1 by bolts, and the first mounting seat 301 is used to fix the heat dissipation assembly 3 to the rear side of the cabinet 1 by bolts;

[0043] The filter hole size of the first filter screen plate 34 is larger than that of the second filter screen plate 35, and the first filter screen plate 34 and the second filter screen plate 35 form a double filtration system to improve the dustproof effect, and the rear side of the first filter screen plate 34 and the second filter screen plate 35 is jointly connected with a strip-shaped cover plate 36, the front side of the strip-shaped cover plate 36 is in close contact with the rear side of the rectangular air inlet pipe 33, and the strip-shaped cover plate 36 can facilitate the disassembly and assembly of the first filter screen plate 34 and the second filter screen plate 35 by the staff;

[0044] The rear side of the rectangular air inlet pipe 33 is provided with strip-shaped holes a330 and b331 for the first filter screen plate 34 and the second filter screen plate 35 to pass through, respectively.

[0045] Further, as shown in the figure, Figure 7 As shown, the left and right sides of the inner wall of the rectangular air inlet pipe 33 are each provided with a fixing block 37, which is used to fix the position of the filter screen plate through the slot, and the middle lower part of the opposite side surface of the two fixing blocks 37 is provided with a first U-shaped slot 370 for fixing the position of the first filter screen plate 34, the first U-shaped slot 370 is used to clamp the first filter screen plate 34 and ensure its stability, and the middle upper part of the opposite side surface of the two fixing blocks 37 is provided with a second U-shaped slot 371 for fixing the position of the second filter screen plate 35, the second U-shaped slot 371 is used to clamp the second filter screen plate 35 and prevent it from falling off.

[0046] Further, as shown in the figure, Figure 8 As shown, the front side of the rain shield 5 is bonded with a rubber pad 50, the front side of the rubber pad 50 is in close contact with the rear side of the cabinet 1, and the rubber pad 50 is used to enhance the sealing between the rain shield 5 and the cabinet 1, and the rear side of the cabinet 1 and close to the outer edge of the strip-shaped air outlet 11 is provided with a U-shaped alignment plate 12 with the opening downward, the inner wall of the rain shield 5 is in close contact with the outer wall of the U-shaped alignment plate 12, and the U-shaped alignment plate 12 is used to position the rain shield 5 and limit its installation direction;

[0047] The top of the rain shield 5 is provided with two second mounting seats 51 which are symmetrically arranged left and right, and the second mounting seats 51 are mounted to the rear side of the cabinet 1 by bolts, and the second mounting seats 51 are used to fix the rain shield 5 to the rear side of the cabinet 1 by bolts.

[0048] Further, as shown in Figure 2 the rear side of the box 1 and close to the bottom of the strip-shaped exhaust port 11 is provided with a flow guide plate 6, which is inclined downward, and the flow guide plate 6 guides the hot air flow output from the rain cover 5 to the rear, avoiding the hot air flow from contacting the box 1.

[0049] Further, as shown in Figure 1 the right side of the box 1 is provided with two mounting frames 7, which are mounted on the wall surface by bolts, and the mounting frames 7 are used to fix the lamp box as a whole on the wall surface or other support structure.

[0050] In use, the LED lamp box with automatic heat dissipation function of the embodiment is first fixed on the wall surface or support structure by the mounting frame 7, and after starting the power supply system, the fan 32 in the heat dissipation assembly 3 actively sucks the external air from the strip-shaped air inlet 300 at the bottom of the rectangular box body 30 through the air guide port 310, and the external air enters the inside of the box 1 after being double-filtered by the first filter screen 34 and the second filter screen 35 in the rectangular air inlet pipe 33, and carries away the heat generated by the LED lamp, and the high-temperature air flow is discharged through the strip-shaped exhaust port 11 and blocked by the dust screen 4 to prevent the external dust from entering in the reverse direction; the rain cover 5 outside the strip-shaped exhaust port 11 is tightly attached to the rear side of the box 1 through the rubber pad 50, and the installation direction is positioned in combination with the U-shaped positioning plate 12, effectively preventing rainwater from entering, and the flow guide plate 6 guides the discharged hot air flow to the rear and downward, avoiding contact with the box 1; during daily maintenance, the strip-shaped cover plate 36 can be detached and the first filter screen 34 and the second filter screen 35 can be extracted along the first U-shaped slot 370 and the second U-shaped slot 371 on the fixed block 37 for cleaning.

[0051] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. LED lamp box with automatic heat dissipation function, comprising a box body (1), characterized in that: The front side of the box (1) is connected with a fixed frame (2) through bolts, the fixed frame (2) is provided with a transparent protection panel (20), the bottom of the rear side of the box (1) is provided with a rectangular mounting opening (10), the rectangular mounting opening (10) is provided with a heat dissipation assembly (3), the heat dissipation assembly (3) comprises a rectangular box body (30) with an open structure at the front side, the rectangular box body (30) is provided with an installation partition plate (31) inside, the front side of the installation partition plate (31) is provided with two air guide openings (310) which are symmetrically arranged, two fans (32) are arranged at the air guide openings (310), the rear side of the inner wall bottom of the rectangular box body (30) is provided with a strip-shaped air inlet (300), the bottom of the rectangular box body (30) is provided with a rectangular air inlet pipe (33) at the strip-shaped air inlet (300), the rectangular air inlet pipe (33) is sequentially provided with a first filter screen plate (34) and a second filter screen plate (35) from bottom to top, the rear side of the box (1) is provided with a strip-shaped air outlet (11) close to the top, the strip-shaped air outlet (11) is provided with a dustproof net (4), the rear side of the box (1) is provided with a rain cover (5) for shielding the strip-shaped air outlet (11) from rain.

2. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The front side of the rectangular box body (30) is located in the box (1), and the gap between the outer wall of the rectangular box body (30) and the inner wall of the rectangular mounting opening (10) is filled with a rubber strip.

3. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The left and right sides of the rectangular box body (30) are provided with first mounting seats (301), and the first mounting seats (301) are mounted on the rear side of the box (1) through bolts.

4. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The filter hole size of the first filter screen plate (34) is larger than that of the second filter screen plate (35), and the rear sides of the first filter screen plate (34) and the second filter screen plate (35) are jointly connected with a strip-shaped cover plate (36), and the front side of the strip-shaped cover plate (36) is attached to the rear side of the rectangular air inlet pipe (33).

5. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The rear side of the rectangular air inlet pipe (33) is provided with a strip-shaped hole a (330) and a strip-shaped hole b (331) for the first filter screen plate (34) and the second filter screen plate (35) to pass through respectively.

6. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The left and right sides of the inner wall of the rectangular air inlet pipe (33) are provided with fixing blocks (37), the middle lower parts of the opposite sides of the two fixing blocks (37) are provided with first U-shaped insertion grooves (370) for fixing the positions of the first filter screen plate (34), and the middle upper parts of the opposite sides of the two fixing blocks (37) are provided with second U-shaped insertion grooves (371) for fixing the positions of the second filter screen plate (35).

7. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The front side of the rain cover (5) is bonded with a rubber pad (50), the front side of the rubber pad (50) is tightly attached to the rear side of the box (1), the rear side of the box (1) and the position close to the outer edge of the strip-shaped air outlet (11) are provided with a U-shaped alignment plate (12) with an opening downward, and the inner wall of the rain cover (5) is attached to the outer wall of the U-shaped alignment plate (12).

8. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The top of the rain cover (5) is provided with two second mounting seats (51) which are symmetrically arranged, and the second mounting seats (51) are mounted on the rear side of the box (1) through bolts.

9. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The rear side of the box (1) and the position close to the bottom of the strip-shaped exhaust port (11) are provided with a flow guide plate (6), which is arranged in a downward inclination.

10. The LED light box with automatic heat dissipation function according to claim 1, characterized in that: The right side of the box (1) is provided with two mounting racks (7), which are mounted on the wall surface through bolts.

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