Power box and display device

Abstract

The utility model is suitable for display screen technical field provides a kind of power box and display device, above-mentioned power box includes box body, power supply component and air permeable part. Display device includes above-mentioned power box. There is air permeable part in the place cover of hollow structure, air permeable structure that still is provided with for air current to pass on air permeable part, make air still can smoothly pass through hollow structure and circulate after air permeable part installation. Compared with the power box in the prior art, by being provided with hollow structure on the side wall of box body, and there is air permeable part in the place cover of hollow structure, while meeting the strength requirement and protection performance of power box itself, also improve the heat dissipation performance of box body, avoid the temperature of box body inside being too high and influence the normal work of power supply component in box body, make the use of power box more safe, can also prolong the overall service life of power box simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of display screen technology, and in particular relates to a power supply box and display device. Background Technology

[0002] LED display devices are flat-panel display devices that use LEDs (Light Emitting Diodes) as their light source. Due to their advantages such as energy saving, environmental friendliness, and high brightness, they have gradually gained market acceptance and are widely used in urban media, electronic traffic signs, and other fields. The power supply box is a crucial component of the display device, typically used to house and protect the power components. However, most existing power supply boxes currently suffer from poor heat dissipation, severely impacting their usability. Utility Model Content

[0003] The purpose of this utility model is to provide a power supply box and a display device, which aims to solve the technical problem of poor heat dissipation performance of the power supply box in the display device in the prior art.

[0004] This utility model is implemented as follows: Firstly, a power supply box is provided, comprising:

[0005] The box body is used to house the power supply components, and the side walls are provided with a hollow structure;

[0006] A breathable component, covering the hollow structure, has a breathable structure for allowing airflow.

[0007] The power supply components are installed inside the enclosure, and a perforated structure is provided on the side wall of the enclosure to allow air to circulate between the inside and outside of the enclosure, carrying away the heat generated by the power supply components during the airflow. A vent is also installed over the perforated structure, with its own airflow structure, ensuring continued airflow even after the vent is installed. Compared to existing power boxes, this design, with its perforated side wall and vent, improves heat dissipation while meeting the strength and protection requirements of the power box. This prevents excessive internal temperature from affecting the normal operation of the power supply components, making the power box safer and extending its overall lifespan.

[0008] In an optional embodiment, the hollow structure includes a first hollow portion and a second hollow portion, the first hollow portion and the second hollow portion being disposed opposite each other on both sides of the box body, and the breathable component being provided at both the first hollow portion and the second hollow portion.

[0009] By dividing the hollow structure into two parts, a first hollow section and a second hollow section, and placing the first hollow section and the second hollow section opposite each other on both sides of the box body, air can form convection between the first hollow section and the second hollow section. That is, air can enter the box body from the first hollow section and flow out from the second hollow section after passing through the power supply component, or air can enter the box body from the second hollow section and flow out from the first hollow section after passing through the power supply component. This makes the air circulation inside the box body smoother, avoids the formation of dead air circulation corners inside the box body, and improves the heat dissipation effect of the power supply box.

[0010] In one optional embodiment, the first hollow portion includes a plurality of hollow holes spaced apart from each other, and the second hollow portion also includes a plurality of hollow holes spaced apart from each other.

[0011] Multiple spaced-apart perforations are provided on the side wall of the box body to form the first perforation or second perforation. This can ensure air circulation at the location of the first perforation or second perforation while maintaining the integrity of the box body's appearance as much as possible. It can also prevent the reduction in strength caused by the setting of the first perforation or second perforation, thus giving the box body better overall strength.

[0012] In one optional embodiment, the breathable component is an electromagnetic shielding plate, which is further provided with honeycomb holes. The number of honeycomb holes is multiple, and the multiple honeycomb holes are evenly distributed on the electromagnetic shielding plate, forming the breathable structure.

[0013] Multiple honeycomb holes are set on the electromagnetic shielding plate. By setting a reasonable thickness of the electromagnetic shielding plate and the size of the honeycomb hole diameter (for example, the hole depth is greater than the hole diameter and the hole diameter is smaller than the cutoff wavelength of the electromagnetic signal), the electromagnetic signal cannot pass through the electromagnetic shielding plate, but air can flow and pass through along the honeycomb holes. This can make the overall structure of the electromagnetic shielding plate simpler and also make the overall strength of the electromagnetic shielding plate better.

[0014] In one optional embodiment, the electromagnetic shielding plate is provided with a connection and mounting structure, and the electromagnetic shielding plate is connected to the box body through the connection and mounting structure.

[0015] By also setting a connection and installation structure on the electromagnetic shielding plate, the electromagnetic shielding plate can be installed and fixed inside the box body through the connection and installation structure, making the installation and fixing of the electromagnetic shielding plate more secure and reliable, thereby improving the overall stability and safety of the power supply box.

[0016] In an optional embodiment, the connection and mounting structure includes a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece being located at both ends of the electromagnetic shielding plate, and both the first connecting piece and the second connecting piece being provided with mounting through holes.

[0017] A first connecting piece and a second connecting piece are respectively provided at both ends of the electromagnetic shielding plate, and both the first and second connecting pieces are provided with mounting holes. A threaded hole is also provided on the box body. During installation, fasteners pass through the mounting holes and are threaded into the threaded holes on the box body. The fasteners then press and fix the first and second connecting pieces onto the box body, thereby securing the electromagnetic shielding plate and making the installation of the ventilator more secure.

[0018] In one optional embodiment, the box body includes a side wall portion and a bottom portion, the hollow structure is disposed on the side wall portion, the top surface of the power supply component abuts against the bottom portion, and the two sides of the power supply component are spaced apart from the side wall portion.

[0019] The box body is formed by the side walls and bottom, with the top and bottom surfaces of the power supply components abutting each other. This allows some of the heat generated by the power supply components to be transferred to the box body for dissipation. Meanwhile, the perforated structure on the side walls, with the two sides of the power supply components spaced apart from the side walls, provides sufficient space for air to enter the box body, facilitating airflow and further improving the heat dissipation of the power supply box.

[0020] In one optional embodiment, a supporting side plate is provided inside the box body. The supporting side plate and the inner surface of the side wall are spaced apart from each other, and the side of the power supply component abuts against the supporting side plate. A first heat-conducting sheet is provided between the side of the power supply component and the supporting side plate, and a second heat-conducting sheet is provided between the top surface and the bottom surface of the power supply component.

[0021] The power supply unit has supporting side plates spaced apart from the inner surface of the sidewalls within the housing. These side plates abut against the sides of the power supply unit, increasing the contact area between them, whereas previously only the top surface of the power supply unit contacted the housing. Simultaneously, a first heat-conducting plate is placed between the side surface of the power supply unit and the supporting side plates, and a second heat-conducting plate is placed between the top and bottom surfaces of the power supply unit. This allows for better heat transfer from the power supply unit to the housing, which then dissipates the heat into the air, improving the power supply unit's heat dissipation performance.

[0022] In one optional embodiment, a plurality of first heat dissipation ribs are provided on the outer surface of the side wall portion, and a plurality of second heat dissipation ribs are provided on the outer surface of the bottom portion.

[0023] By providing multiple first heat dissipation ribs on the outer surface of the side wall and multiple second heat dissipation ribs on the outer surface of the bottom, the contact area between the box body and the air can be increased, thus improving the heat dissipation effect of the box body.

[0024] In a second aspect, a display device is provided, comprising the power supply box described in any of the preceding claims.

[0025] The first aspect of this invention provides the following technical advantages: The power supply components are installed inside the box body, and a perforated structure is provided on the side wall of the box body. This allows air to circulate between the inside and outside of the box body, carrying away the heat generated by the power supply components during airflow. A vent is also provided over the perforated structure, with a further vent for airflow, ensuring continued air circulation even after the vent is installed. Compared to existing power boxes, this design, with its perforated structure on the side wall and vent, not only meets the strength and protection requirements of the power box but also improves its heat dissipation. This prevents excessive internal temperature from affecting the normal operation of the power supply components, making the power box safer and extending its overall lifespan.

[0026] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the installation structure of the power supply box provided in an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the power supply box provided in an embodiment of the present utility model;

[0030] Figure 3 This is an exploded structural diagram of the power supply box provided in this embodiment of the utility model;

[0031] Figure 4This is a cross-sectional view of the power supply box provided in an embodiment of the present utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the breathable component used in the embodiment of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Box body; 11. Side wall; 12. Bottom; 13. Supporting side plate; 2. Power supply assembly; 3. Ventilation component; 31. Electromagnetic shielding plate; 32. Ventilation structure; 321. Honeycomb hole; 4. Hollowed-out structure; 41. First hollowed-out part; 42. Second hollowed-out part; 43. Hollowed-out hole; 5. Connection and installation structure; 51. First connecting piece; 52. Second connecting piece; 53. Installation through hole; 6. First heat-conducting plate; 7. Second heat-conducting plate; 8. First heat dissipation rib; 9. Second heat dissipation rib; 10. Box frame. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] Please refer to Figures 1 to 5 As shown in the embodiments of this utility model, in a first aspect, a power supply box is provided for mounting and fixing on a display device. The power supply box includes a box body 1 and a venting member 3. The box body 1 is used to accommodate a power supply component 2, and a hollow structure 4 is provided on the side wall of the box body 1. The venting member 3 covers the hollow structure 4, and a venting structure 32 for airflow is provided on the venting member 3.

[0041] Specifically, the box body 1 refers to a shell-like structure with a certain amount of accommodating space. The box body 1 usually has an opening and can be placed over the power supply component 2 to protect it. The hollow structure 4 is a structure that creates an open space or holes on the surface of the object by removing a portion of the material. The venting component 3 refers to a component with a certain area, which can be installed and connected to the box body 1 by means of snap-fit, welding, or fastener connection. The venting structure 32 refers to a structure provided on the venting component 3 that allows gas to pass through. The venting structure 32 can be a macroscopic structure or a microscopic structure.

[0042] The power supply box provided in this embodiment of the utility model has a power supply component 2 installed inside the box body 1. A perforated structure 4 is provided on the side wall of the box body 1, allowing air to circulate between the inside and outside of the box body 1 and carrying away the heat generated by the power supply component 2 during airflow. A ventilated element 3 is also provided at the perforated structure 4, and a ventilated structure 32 is provided on the ventilated element 3 to allow airflow, ensuring smooth airflow even after the ventilated element 3 is installed. Compared with power supply boxes in the prior art, by providing a perforated structure 4 on the side wall of the box body 1, and covering the perforated structure 4 with a ventilated element 3 and a ventilated structure 32, the power supply box meets its own strength requirements and protection performance while improving the heat dissipation performance of the box body 1. This prevents the internal temperature of the box body 1 from becoming too high and affecting the normal operation of the power supply component 2 inside the box body 1, making the power supply box safer to use and extending its overall service life.

[0043] It should be noted that the venting component 3 can be installed and fixed on the outside of the box body 1, or it can be installed inside the box body 1. It can be freely set according to actual needs, which will not be elaborated here.

[0044] In one embodiment, see Figure 4 The hollow structure 4 includes a first hollow part 41 and a second hollow part 42. The first hollow part 41 and the second hollow part 42 are disposed opposite each other on both sides of the box body 1, and both the first hollow part 41 and the second hollow part 42 are covered with a breathable part 3.

[0045] Specifically, the first hollowed-out part 41 and the second hollowed-out part 42 both refer to different parts of the hollowed-out structure 4.

[0046] In this embodiment, by dividing the hollow structure 4 into two parts, a first hollow part 41 and a second hollow part 42, and with the first hollow part 41 and the second hollow part 42 arranged opposite to each other on both sides of the box body 1, air can form convection between the first hollow part 41 and the second hollow part 42. That is, air can enter the box body 1 from the first hollow part 41 and flow out from the second hollow part 42 after passing through the power supply component 2, or air can enter the box body 1 from the second hollow part 42 and flow out from the first hollow part 41 after passing through the power supply component 2. This makes the air circulation inside the box body 1 smoother and avoids the formation of dead corners in the box body 1, thereby improving the heat dissipation effect of the power supply box.

[0047] In an optional embodiment, please refer to Figure 3The number of first hollow portions 41 can be multiple, and multiple first hollow portions 41 are arranged sequentially along the length direction of the box body 1. When installing the venting component 3, each first hollow portion 41 can be covered with a venting component 3. The size of the venting component 3 is adapted to the area occupied by the first hollow portion 41. When the area of ​​the first hollow portion 41 is large, a large venting component 3 is used, and when the area of ​​the first hollow portion 41 is small, a small venting component 3 is used; alternatively, one venting component 3 can be used to cover multiple first hollow portions 41 simultaneously. The number of second hollow portions 42 can be multiple, and multiple second hollow portions 42 are arranged sequentially along the length direction of the box body 1. When installing the ventilator 3, each second hollow section 42 can be covered with a ventilator 3. The size of the ventilator 3 is adapted to the area occupied by the second hollow section 42. When the area of ​​the second hollow section 42 is large, a large ventilator 3 is used, and when the area of ​​the second hollow section 42 is small, a small ventilator 3 is used. Alternatively, one ventilator 3 can be used to cover multiple first hollow sections 41 at the same time.

[0048] In one embodiment, see Figure 2 The first hollowed-out portion 41 includes a plurality of hollowed-out holes 43 arranged at intervals, and the second hollowed-out portion 42 also includes a plurality of hollowed-out holes 43 arranged at intervals.

[0049] Specifically, the perforated hole 43 refers to a through-hole structure with a certain area. The shape of the perforated hole 43 can be circular, strip-shaped, or polygonal, etc.

[0050] In this embodiment, by providing multiple spaced-apart perforations 43 on the side wall of the box body 1 to form the first perforated portion 41 or the second perforated portion 42, the integrity of the appearance of the box body 1 can be maintained as much as possible while ensuring the airflow at the location of the first perforated portion 41 or the second perforated portion 42. This avoids the reduction in strength caused by the setting of the first perforated portion 41 or the second perforated portion 42, so that the box body 1 can have better overall strength.

[0051] In one embodiment, see Figure 3 and Figure 5 The breathable component 3 is an electromagnetic shielding plate 31. The electromagnetic shielding plate 31 is also provided with honeycomb holes 321. There are multiple honeycomb holes 321, and the multiple honeycomb holes 321 are evenly distributed on the electromagnetic shielding plate 31. The multiple honeycomb holes 321 form a breathable structure 32.

[0052] Specifically, the electromagnetic shielding plate 31 refers to a plate-like structure with a certain thickness. The electromagnetic shielding plate 31 can be made of metal mesh, metal woven mesh, or metal honeycomb panel, etc. The electromagnetic shielding plate 31 can also be made by coating a conductive layer (such as silver nanowires, copper powder, conductive polymer, etc.) onto a breathable substrate (such as non-woven fabric). The honeycomb holes 321 refer to a perforated structure 4 with a regular hexagonal or polygonal array, named for its honeycomb-like shape. The honeycomb holes 321 are generally through-hole structures, and the axes of the honeycomb holes 321 are all arranged along the thickness direction of the electromagnetic shielding plate 31.

[0053] In this embodiment, by providing multiple honeycomb holes 321 on the electromagnetic shielding plate 31, and by setting a reasonable thickness of the electromagnetic shielding plate 31 and the size of the honeycomb hole 321 (for example, the hole depth is greater than the hole diameter, and the hole diameter is smaller than the cutoff wavelength of the electromagnetic signal), the electromagnetic signal cannot pass through the electromagnetic shielding plate 31, while air can flow and pass through along the honeycomb holes 321. This makes the overall structure of the electromagnetic shielding plate 31 simpler and also improves the overall strength of the electromagnetic shielding plate 31.

[0054] In one embodiment, see Figure 5 The electromagnetic shielding plate 31 is also provided with a connection and installation structure 5, and the electromagnetic shielding plate 31 is installed and fixed inside the box body 1 through the connection and installation structure 5.

[0055] Specifically, connection and installation structure 5 refers to a structure or component that connects two parts.

[0056] In this embodiment, by providing a connection and installation structure 5 on the electromagnetic shielding plate 31, the electromagnetic shielding plate 31 can be installed and fixed inside the box body 1 through the connection and installation structure 5, making the installation and fixing of the electromagnetic shielding plate 31 more secure and reliable, thereby improving the overall stability and safety of the power supply box.

[0057] In one embodiment, see Figure 5 The connection and installation structure 5 includes a first connecting piece 51 and a second connecting piece 52. The first connecting piece 51 and the second connecting piece 52 are located at both ends of the electromagnetic shielding plate 31, and both the first connecting piece 51 and the second connecting piece 52 are provided with mounting holes 53.

[0058] Specifically, the first connecting piece 51 and the second connecting piece 52 both refer to sheet structures with a certain thickness. The first connecting piece 51 and the second connecting piece 52 can be connected to the electromagnetic shielding plate 31 by means of welding, snap-fitting or fastener connection. The first connecting piece 51 and the second connecting piece 52 can also be integrally formed with the electromagnetic shielding plate 31.

[0059] In this embodiment, a first connecting piece 51 and a second connecting piece 52 are respectively provided at both ends of the electromagnetic shielding plate 31, and both the first connecting piece 51 and the second connecting piece 52 are provided with mounting through holes 53. A threaded hole is also provided on the box body 1. During installation of the electromagnetic shielding plate 31, fasteners pass through the mounting through holes 53 and are threadedly connected to the threaded holes on the box body 1. The fasteners press and fix the first connecting piece 51 and the second connecting piece 52 onto the box body 1, thereby fixing the electromagnetic shielding plate 31 and making the installation of the ventilator 3 more secure.

[0060] In an optional embodiment, please refer to Figure 5 Both the first connecting piece 51 and the second connecting piece 52 can be integrally formed with the electromagnetic shielding plate 31. The first connecting piece 51 and the second connecting piece 52 can be integrally formed with the electromagnetic shielding plate 31 by means of stamping, cutting or casting, so that the connection between the first connecting piece 51 and the second connecting piece 52 and the electromagnetic shielding plate 31 is more solid, and the installation of the ventilator 3 is also more solid and stable.

[0061] In one embodiment, see Figure 2 and Figure 4 The box body 1 includes a side wall portion 11 and a bottom portion 12. A hollow structure 4 is disposed on the side wall portion 11. The top surface of the power supply component 2 abuts against the bottom portion 12, and the two sides of the power supply component 2 are spaced apart from the side wall portion 11.

[0062] Specifically, both the sidewall portion 11 and the bottom portion 12 refer to plate-like structures with a certain thickness.

[0063] In this embodiment, the box body 1 is formed by the side wall portion 11 and the bottom portion 12, and the top surface of the power supply component 2 abuts against the bottom portion 12, so that some of the heat generated by the power supply component 2 can be transferred to the box body 1 and dissipated through the box body 1. At the same time, the hollow structure 4 is provided on the side wall portion 11, and the two sides of the power supply component 2 are spaced apart from the side wall portion 11, which allows sufficient space for air to enter the box body 1, facilitates the air flow inside the box body 1, and thus improves the heat dissipation effect of the power supply box.

[0064] In one embodiment, see Figure 2 and Figure 4 The box body 1 is provided with a support side plate 13. The support side plate 13 and the inner surface of the side wall 11 are spaced apart from each other. The side of the power supply component 2 abuts against the support side plate 13. A first heat-conducting plate 6 is provided between the side of the power supply component 2 and the support side plate 13. A second heat-conducting plate 7 is also provided between the top surface and the bottom surface 12 of the power supply component 2.

[0065] Specifically, the supporting side plate 13 refers to a plate-like structure with a certain thickness. The supporting side plate 13 can be integrally formed with the box body 1, or it can be a separate structure connected to the box body 1 via snap-fit, welding, or fasteners. The supporting side plate 13 can be attached to the bottom part 12 or to the side wall part 11; its configuration is flexible and will not be elaborated further here. Both the first heat-conducting plate 6 and the second heat-conducting plate 7 refer to plate-like components that rapidly conduct heat.

[0066] In this embodiment, by providing a supporting side plate 13 spaced apart from the inner surface of the side wall portion 11 inside the box body 1, and by having the side of the power supply component 2 abut against the supporting side plate 13, the side of the power supply component 2 can also abut against the box body 1, increasing the contact area between the power supply component 2 and the box body 1, whereas previously only the top surface of the power supply component 2 was in contact with the box body 1. Simultaneously, a first heat-conducting plate 6 is provided between the side of the power supply component 2 and the supporting side plate 13, and a second heat-conducting plate 7 is provided between the top surface and the bottom surface 12 of the power supply component 2. This allows some of the heat generated by the power supply component 2 to be better transferred to the box body 1, and then diffused into the air through the box body 1, improving the heat dissipation performance of the power supply box.

[0067] In one embodiment, see Figure 2 and Figure 4 Multiple first heat dissipation ribs 8 are provided on the outer surface of the side wall portion 11, and multiple second heat dissipation ribs 9 are provided on the outer surface of the bottom portion 12.

[0068] Specifically, both the first heat dissipation rib 8 and the second heat dissipation rib 9 refer to structures with a certain height.

[0069] In this embodiment, by providing a plurality of first heat dissipation ribs 8 on the outer surface of the side wall portion 11 and a plurality of second heat dissipation ribs 9 on the outer surface of the bottom portion 12, the contact area between the box body 1 and the air can be increased, thereby improving the heat dissipation effect of the box body 1.

[0070] Secondly, a display device is provided, including a power supply box as described above. The power supply box is used for mounting on the housing frame 10. It is understood that the beneficial effects of the second aspect are described in the relevant description of the first aspect above, and will not be repeated here.

[0071] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A power supply box, installed in a display device, characterized in that, include: The box body is used to house the power supply components, and the side walls are provided with a hollow structure; A breathable component, covering the hollow structure, has a breathable structure for allowing airflow to pass through; The breathable component is an electromagnetic shielding plate, which is also provided with multiple honeycomb holes. The multiple honeycomb holes are evenly distributed on the electromagnetic shielding plate, and the multiple honeycomb holes form the breathable structure.

2. The power supply box as described in claim 1, characterized in that, The hollow structure includes a first hollow part and a second hollow part. The first hollow part and the second hollow part are disposed opposite to each other on both sides of the box body, and the breathable part is covered at both the first hollow part and the second hollow part.

3. The power supply box as described in claim 2, characterized in that, The first hollowed-out portion includes a plurality of hollowed-out holes spaced apart from each other, and the second hollowed-out portion also includes a plurality of hollowed-out holes spaced apart from each other.

4. The power supply box as described in claim 1, characterized in that, The electromagnetic shielding plate is provided with a connection and installation structure, and the electromagnetic shielding plate is connected to the box body through the connection and installation structure.

5. The power supply box as described in claim 4, characterized in that, The connection and installation structure includes a first connecting piece and a second connecting piece, which are located at both ends of the electromagnetic shielding plate, and both the first connecting piece and the second connecting piece are provided with mounting through holes.

6. The power supply box as described in any one of claims 1 to 5, characterized in that, The box body includes a side wall portion and a bottom portion. The hollow structure is disposed on the side wall portion. The top surface of the power supply component abuts against the bottom portion, and the two sides of the power supply component are spaced apart from the side wall portion.

7. The power supply box as described in claim 6, characterized in that, The box body is provided with a supporting side plate, which is spaced apart from the inner surface of the side wall. The side of the power supply component abuts against the supporting side plate. A first heat-conducting plate is provided between the side of the power supply component and the supporting side plate. A second heat-conducting plate is also provided between the top surface and the bottom surface of the power supply component.

8. The power supply box as described in claim 7, characterized in that, The outer surface of the side wall is provided with a plurality of first heat dissipation ribs, and the outer surface of the bottom part is provided with a plurality of second heat dissipation ribs.

9. A display device, characterized in that, Includes the power supply box as described in any one of claims 1 to 8.

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