Power supply box and display screen

Abstract

The utility model belongs to the technical field, and particularly relates to a power box and a display screen, the power box is used for being installed on a fixing frame of the display screen, the display screen comprises the fixing frame and a display module arranged on the front side of the fixing frame, the power box comprises a box body, a power module is arranged in the box body, the box body is fixed to the fixing frame, and the power module is arranged in the box body. The length direction of the box body is consistent with that of the fixed frame; a first opening and a second opening are formed in the two sides of the box body in the width direction respectively, the first opening faces the front side of the fixing frame, and the second opening faces the side, away from the display module, of the fixing frame; the front cover is arranged on the first opening side in a covering mode, and the front cover is detachably connected with the box body so as to be used for opening or closing the first opening; the rear cover is arranged on the side of the second opening, and the rear cover is rotatably connected to the box body and used for opening or closing the second opening. The power supply box can realize front and back maintenance, and is rapid and convenient to maintain and high in efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power supply boxes, and particularly relates to a power supply box and a display screen. BACKGROUND

[0002] Outdoor display screens have two different maintenance modes, one of which is a front maintenance mode, that is, maintenance is performed in front of the screen body of the display screen, and the other is a rear maintenance mode, that is, maintenance is performed at the rear of the screen body of the display screen. Among them, the rear maintenance mode is mostly used, and the structure is simple, but a certain space needs to be reserved at the rear of the screen body as a maintenance channel during maintenance. In the front maintenance mode, no maintenance channel needs to be reserved, and the display screen can be applied to occasions with small space and harsh maintenance conditions.

[0003] At present, the power supply box of an industry product generally comprises a front cover and a rear cover which are mutually docked, and the front cover is fixed vertically on the frame of the screen body. When maintenance is performed, the front cover is flipped to the side of the display module after the front maintenance screws are disassembled to realize maintenance. The front maintenance requires a large space, has a high difficulty, is low in efficiency, and is extremely inconvenient to maintain. CONTENT OF THE UTILITY MODEL

[0004] The application aims to solve the problems in the prior art that the front cover is fixed vertically on the frame of the screen body, the front cover is flipped to the side of the display module after the front maintenance screws are disassembled to realize maintenance, the front maintenance requires a large space, has a high difficulty, is low in efficiency, and is extremely inconvenient to maintain.

[0005] The first aspect of the application provides a power supply box which is used for being mounted on a fixed frame of a display screen, the display screen comprises a fixed frame and a display module arranged on the front side of the fixed frame, and the power supply box comprises: a box body, the inside of the box body is provided with a power module, the box body is fixed on the fixed frame, and the length direction of the box body is consistent with the length direction of the fixed frame; the two sides of the width direction of the box body are respectively provided with a first opening and a second opening, the first opening faces the front side of the fixed frame, and the second opening faces the side of the fixed frame away from the display module; a front cover is arranged on the side of the first opening, the front cover is detachably connected with the box body, and is used for opening or closing the first opening; and a rear cover is arranged on the side of the second opening, and the rear cover is rotatably connected with the box body, and is used for opening or closing the second opening.

[0006] In an example embodiment of the application, the power supply box further comprises a fixing member, the front cover is detachably connected with the box body through the fixing member, and when the front cover is separated from the box body, the fixing member is clamped in the front cover to prevent the fixing member from being separated from the front cover.

[0007] In an example embodiment of the present application, the rear cover has a first end and a second end arranged oppositely, the first end is rotatably connected with the box body, and the second end is detachably connected with the box body

[0008] In an example embodiment of the present application, the power box further comprises a rotating structure including a first connecting plate, a second connecting plate, and a rotating shaft for connecting the first connecting plate and the second connecting plate, the axis direction of the rotating shaft is consistent with the length direction of the fixed frame; the first connecting plate is connected with the first end, the second connecting plate is connected with the box body, and the first end of the rear cover can rotate along the axis of the rotating shaft to relatively approach or move away from the second opening side, so as to open or close the second opening.

[0009] In an example embodiment of the present application, the power box further comprises a buckle structure, the buckle structure comprises: a first buckle member fixed on the second end of the rear cover, the first buckle member comprises a buckle part and a pressing part, the buckle part has a buckle position arranged to bend to itself; a second buckle member fixed on the box body, the second buckle member is provided with a limiting opening, the buckle position can be buckled in the limiting opening, so that the first buckle member is fixed on the second buckle member to fix the rear cover and the box body; wherein the buckle position can be separated from the limiting opening when the pressing part is pressed, so that the first buckle member and the second buckle member are separated from each other.

[0010] In an example embodiment of the present application, the side of the rear cover close to the power module is coated with a heat-conducting coating, and the side of the rear cover away from the box body is provided with a heat dissipation rib, the heat generated by the power module can be transmitted to the heat dissipation rib through the heat-conducting coating.

[0011] In an example embodiment of the present application, the power box further comprises a first sealing ring; the side of the front cover facing the box body is provided with a first annular groove, and the first sealing ring is buckled in the first annular groove; wherein when the front cover is covered on the first opening side, the first sealing ring is fitted with the edge of the first opening.

[0012] In an example embodiment of the present application, the power box further comprises a second sealing ring; the side of the rear cover facing the box body is provided with a second annular groove, and the second sealing ring is buckled in the second annular groove; wherein when the rear cover is covered on the second opening side, the second sealing ring is fitted with the edge of the second opening.

[0013] The second aspect of the present application provides a display screen, comprising: a fixed frame; display modules, a plurality of the display modules are fixed to the front side of the fixed frame; and the power box of any one of the above, the box body of the power box is fixed on the fixed frame, and the length direction of the box body is consistent with the length direction of the fixed frame.

[0014] In another exemplary embodiment of the present application, the display screen comprises a plurality of power boxes, a plurality of the power boxes are arranged in sequence and at intervals in the length direction of the fixed frame, and a plurality of the power boxes independently or jointly control different display modules.

[0015] The power box and the display screen of the present application have at least the following beneficial effects:

[0016] The display screen of the present application adopts the above-mentioned power box which can be maintained in front and back, and the maintenance is fast, convenient and efficient. The box body in the power box is fixed on the fixed frame, and the length direction of the box body is consistent with the length direction of the fixed frame, that is, the box body is placed horizontally on the fixed frame. When the front maintenance mode is adopted, the fixed state of the front cover and the box body is released, and the front cover is removed from the first opening, that is, the front cover does not need to be flipped to the side of the display module, and the first opening of the box body can be opened, and the power module and the circuit board in the box body are maintained. The space required for front maintenance is small, and the maintenance is relatively simple; when the back maintenance mode is adopted, the back cover is rotatably opened to the second opening of the box body, so as to conveniently maintain the power module and the circuit board inside the box body. In summary, the power box which can be maintained in front and back in the display screen of the present application can be simultaneously applied to the front maintenance and back maintenance modes, and the maintenance is fast, convenient and efficient.

[0017] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings herein are incorporated into the specification and form part of the specification, show embodiments consistent with the present application, and together with the specification serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 A structural schematic diagram of a power box fixed on a fixed frame in the prior art is shown.

[0021] Figure 2The diagram shows a front view of the power supply box fixed on the fixed frame according to an embodiment of this application.

[0022] Figure 3 An exploded view of the front cover, power module, and box body provided in an embodiment of this application is shown.

[0023] Figure 4 An exploded structural diagram of the front cover, fastener, and box body provided in an embodiment of this application is shown.

[0024] Figure 5 An exploded view of the power module, power mounting plate, and hub provided in an embodiment of this application, separated from the back cover, is shown.

[0025] Figure 6 A cross-sectional structural diagram of the display screen provided in an embodiment of this application is shown.

[0026] Figure 7 A three-dimensional structural diagram of the snap-fit ​​structure provided in the embodiment of this application is shown.

[0027] Figure 8 A cross-sectional structural diagram of the snap-fit ​​structure provided in an embodiment of this application is shown.

[0028] Figure 9 This diagram illustrates the structure of the first fastener provided in an embodiment of this application, which is fastened within the limiting opening.

[0029] Figure 10 An exploded structural diagram of the hub, power mounting plate, power module, and front cover provided in an embodiment of this application is shown.

[0030] Figure 11 A schematic diagram of the structure provided in the embodiment of this application shows a first power supply box and a second power supply box on a fixed frame.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Display screen;

[0033] 100. Power supply box; 100a. First power supply box; 100b. Second power supply box; 110. Box body; 111. Power module; 120. Front cover; 130. Rear cover; 140. Fixing component; 150. Rotating structure; 151. First connecting plate; 152. Second connecting plate; 153. Rotating shaft; 160. Snap-fit ​​structure; 161. First snap-fit ​​component; 1610. Snap-fit ​​part; 16100. Snap-fit ​​position; 1611. Pressing part; 162. Second snap-fit ​​component; 1620. Limiting port; 16200. Warping part; 170. First sealing ring; 180. Second sealing ring; 190. Hub; 1100. Power supply fixing plate;

[0034] 200, display module; 300, fixed frame; 310, first support rod; 320, second support rod; 330, third support rod. DETAILED DESCRIPTION

[0035] Example implementations are now described with reference to the drawings. Example implementations can, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art.

[0036] In the present application, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "assembly", "connection" and the like should be understood broadly, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection; can be direct connection, can be indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In addition, the described features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be used. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring the aspects of the present application.

[0039] Figure 1 A structural schematic diagram showing that the power box is fixed to the fixed frame in the prior art is shown.

[0040] As shown in Figure 1 In the prior art, the power box 100 is vertically placed in the fixed frame 300 of the display screen. When the front maintenance screw is disassembled, the front cover of the power box needs to be flipped to the display module side during front maintenance because the power box 100 is vertically placed in the fixed frame (as shown in Figure 1When the front maintenance is needed, the power box needs to be turned over to the upside-down position (i.e. the right side of the power box is turned to the upside), and then the power box is opened to maintain the power module or components inside the power box. The space required for turning over the power box is large, which results in the problems of large space requirement, low efficiency and inconvenient maintenance.

[0041] Figure 2 A front view structure schematic diagram of the power box fixed on the fixed frame is shown. Figure 3 An exploded structure schematic diagram of the front cover, the power module and the box body is shown. Figure 4 An exploded structure schematic diagram of the front cover, the fixing member and the box body is shown. Figure 5 An exploded structure schematic diagram of the power module, the power fixing plate and the concentrator separated from the rear cover is shown.

[0042] As Figure 2 shown, the power box 100 can be installed on the fixed frame 300 of the display screen 10. The display screen 10 includes the display module 200 and the fixed frame 300. A plurality of display modules 200 are fixed to the front side of the fixed frame 300.

[0043] Referring to Figure 3 shown, the fixed frame 300 includes four first support rods 310 connected end to end. The four first support rods 310 are arranged in a rectangular shape.

[0044] It should be noted that the fixed frame 300 can have a length direction, a width direction and a height direction. When the display screen 10 is viewed in the front view, the horizontal direction is the length direction of the fixed frame 300, and the vertical direction is the height direction of the fixed frame 300.

[0045] In addition, referring to Figure 3 shown, two second support rods 320 and a third support rod 330 are arranged inside the fixed frame 300 and are parallel to each other. The second support rod 320 and the third support rod 330 extend in the length direction of the fixed frame 300, i.e. extend in the horizontal direction.

[0046] The power box 100 can include a box body 110. The box body 110 can have a rectangular shape, a square shape, a circular shape, an elliptical shape or other shapes, which are not limited herein. The box body 110 can be provided with a power module 111 inside. The power module 111 can supply power to the display module 200 to ensure the display of the display module 200.

[0047] In some embodiments of the present application, referring to Figure 3As shown, the box body 110 adopts a rectangular shape, and the box body 110 is fixed on the fixed frame 300 by a fixing structure such as a bolt or a screw, so as to ensure that the box body 110 does not shake on the fixed frame 300.

[0048] It should be noted that, as shown in Figure 2 As shown, the length direction of the box body 110 is consistent with the length direction of the fixed frame 300, that is, the box body 110 is horizontally placed in the fixed frame 300.

[0049] For example, as shown in Figure 2 and Figure 3 As shown, the box body 110 is arranged between the second support rod 320 and the third support rod 330, the length direction of the box body 110 is the same as the extension direction of the second support rod 320, and the bottom of the box body 110 is fixed on the third support rod 330 by a fixing structure such as a bolt or a screw.

[0050] In some embodiments of the present application, the box body 110 is respectively provided with a first opening (not shown in the figure) and a second opening (not shown in the figure) on both sides in the width direction thereof. The first opening can be directed to the front side of the fixed frame 300, that is, the side of the first opening directed to the display module 200, and the second opening can be directed to the side of the fixed frame 300 away from the display module 200.

[0051] In some embodiments of the present application, as shown in Figure 3 The power box 100 can further include a front cover 120. The front cover 120 is arranged on the side of the first opening and detachably connected with the box body 110, so as to open or close the first opening. Since the box body 110 is horizontally placed between the second support rod 320 and the third support rod 330, the front cover 120 is also horizontally placed between the second support rod 320 and the third support rod 330.

[0052] In some embodiments of the present application, as shown in Figure 3 The power box 100 can further include a rear cover 130. The rear cover 130 is arranged on the side of the second opening and rotatably connected with the box body 110, that is, the rear cover 130 can be rotated to open or close the second opening.

[0053] As shown in Figure 4 When the power box 100 of the present application is implemented for front maintenance, the display module 200 on the front side of the fixed frame 300 is first disassembled, and then the front cover 120 is directly disassembled from the first opening. When the front cover 120 is disassembled from the first opening of the box body 110, the front cover 120 does not need to be flipped to the side of the display module 200 to maintain the power module 111 inside the box body 110, the space required for front maintenance is small, and the maintenance is relatively simple. As shown in Figure 5As shown, when rear maintenance is adopted, the rear cover 130 can rotatably open the second opening of the box body 110, so as to facilitate the maintenance of the power supply module 111 and the circuit board inside the box body 110. The power supply box 100 of the present scheme can realize front and rear maintenance, and the maintenance is fast, convenient and efficient.

[0054] In some embodiments of the present application, the front cover 120 and the rear cover 130 can both be made of die-cast aluminum material, which is lighter in weight, higher in strength, and has good heat conductivity, so as to effectively transfer the heat generated by the power supply module 111 to the outside, preventing overheating and causing damage to the power supply module 111.

[0055] Among them, the front cover 120 and the box body 110 can also be detachably connected through threads, buckles, latches, hinges, nuts and the like.

[0056] In some embodiments of the present application, referring to Figure 4 As shown, the power supply box 100 can also include a fixing member 140. The front cover 120 is detachably connected with the box body 110 through the fixing member 140.

[0057] It should be noted that the fixing member 140 can be a screw, a bolt or a rivet, and when the front cover 120 is placed at the first opening, the fixing member 140 is used to connect the front cover 120 and the box body 110 together.

[0058] For example, the fixing member 140 can be a screw. Among them, a first mounting hole (not marked in the figure) is formed on the front cover 120, and a second mounting hole (not marked in the figure) corresponding to the first mounting hole is formed on the box body 110. The fixing member 140 is inserted into the first mounting hole and the second mounting hole and is threadedly connected with the first mounting hole and the second mounting hole, so as to detachably connect the front cover 120 and the box body 110. That is, when front maintenance is performed, the fixing member 140 between the front cover 120 and the box body 110 is detached, and the front cover 120 does not need to be flipped towards the display module 200 side, so that the space required for front maintenance is small, and the maintenance of the power supply box 100 is simple.

[0059] In some embodiments of the present application, when the front cover 120 and the box body 110 are separated, the fixing member 140 can be clamped in the front cover 110, so as to prevent the fixing member 140 from falling off from the front cover 120 and falling from a high altitude, and to ensure the safety factor of the display screen 10.

[0060] For example, the fixing member 140 can be a screw that cannot be loosened. When the front cover 120 and the box body 110 are separated, the fixing member 140 is clamped in the first mounting hole, so as to prevent the fixing member 140 from being separated from the first mounting hole and falling from a high altitude, and to ensure the safety factor of the display screen 10.

[0061] In some embodiments of the present application, the back cover 130 has a first end (not shown in the figure) and a second end (not shown in the figure) arranged oppositely, and the first end and the second end are arranged at intervals in the height direction of the fixed frame 300. The first end of the back cover 130 is rotationally connected to the box body 110, and the second end of the back cover 130 is detachably connected to the box body 110. That is, when the second end of the back cover 130 is separated from the box body 110, the back cover 130 can rotate relative to the box body 110 to open the second opening of the box body 110, so as to maintain and repair the power supply module 111 inside the box body 110.

[0062] Figure 6 A cross-sectional structure schematic diagram of the display screen provided by the present application is shown.

[0063] In some embodiments of the present application, referring to Figure 5 and Figure 6 , the power supply box 100 can further include a rotating structure 150. The rotating structure 150 can adopt a hinge structure. The rotating structure 150 includes a first connecting plate 151, a second connecting plate 152, and a rotating shaft 153 for connecting the first connecting plate 151 and the second connecting plate 152, and the axis direction of the rotating shaft 153 is consistent with the length direction of the fixed frame 300. Among them, the first connecting plate 151 is connected with the first end of the back cover 130, the second connecting plate 152 is connected with the box body 110, and the first end of the back cover 130 can rotate along the axis of the rotating shaft 153 to make the back cover 130 relatively close to or away from the second opening side, thereby opening or closing the second opening.

[0064] That is, the back cover 130 can realize the flip opening or closing of the box body 110 through the rotating structure 150, so as to perform the back maintenance of the internal components of the power supply box 100. By rotating to open the box body 110, the back maintenance is more simple and convenient, and time and labor are saved.

[0065] In some embodiments of the present application, one rotating structure 150 can be arranged between the back cover 130 and the box body 110, or two rotating structures 150 can be arranged, or a plurality of rotating structures 150 can be arranged. Here, the plurality refers to three or more.

[0066] For example, as shown in Figure 5 , three rotating structures 150 are arranged between the back cover 130 and the box body 110, which can ensure the tightness of the connection between the back cover 130 and the box body 110, and also ensure the smoothness of the rotation between the back cover 130 and the box body 110.

[0067] Figure 7 A three-dimensional structure schematic diagram of the buckle structure provided by the present application is shown. Figure 8 A cross-sectional structure schematic diagram of the buckle structure provided by the present application is shown.Figure 9 A structure diagram of the first buckle member provided by the present application is shown.

[0068] In some embodiments of the present application, referring to Figure 3 The power box 100 can further include a buckle structure 160. The buckle structure 160 is used to connect the rear cover 130 and the box body 110, so that the rear cover 130 closes the second opening and prevents the components and the power module 111 inside the box body 110 from falling off.

[0069] The buckle structure 160 can adopt a snap lock structure.

[0070] For example, referring to Figure 7 to Figure 9 The buckle structure 160 can include a first buckle member 161 and a second buckle member 162. The first buckle member 161 is fixed to the second end of the rear cover 130 by screws or bolts, and includes a buckle portion 1610 and a pressing portion 1611 connected to each other. The buckle portion 1610 has a buckle site 16100 bent towards itself. When the pressing portion 1611 is pressed, the buckle portion 1610 moves away from the rear cover 130. The second buckle member 162 is fixed to the box body 110 by screws or bolts, and is provided with a limiting opening 1620 having a curved portion 16200 curved away from the box body 110. The buckle site 16100 can be clamped in the limiting opening 1620 and connected to the curved portion 16200 to fix the first buckle member 161 to the second buckle member 162, so as to fix the rear cover 130 and the box body 110 and prevent the rear cover 130 from being separated from the box body 110. The buckle site 16100 can be separated from the curved portion 16200 of the limiting opening 1620 when the pressing portion 1611 is pressed, so that the first buckle member 161 and the second buckle member 162 are separated from each other, and the rear cover 130 and the box body 110 are separated from each other. The rear cover 130 can rotate around the rotating shaft 153 in the rotating structure 150, and then open the second opening to facilitate the rear maintenance.

[0071] In some embodiments of the present application, one buckle structure 160 can be provided between the rear cover 130 and the box body 110, or two buckle structures 160 can be provided, or a plurality of buckle structures 160 can be provided. Here, the plurality refers to three or more.

[0072] For example, referring to Figure 3 Two buckle structures 160 are provided between the rear cover 130 and the box body 110, and the two buckle structures 160 are symmetrically arranged with respect to each other. The two buckle structures 160 can ensure the tightness of the connection between the rear cover 130 and the box body 110, and prevent the rear cover 130 from being separated from the box body 110.

[0073] In some embodiments of the present application, the side of the rear cover 130 close to the power module 111 can be coated with a heat-conducting coating (not shown in the figure). The heat-conducting coating can be made of heat-conducting silicone grease or other heat-conducting materials, as long as it can conduct the heat on the power module 111 to the rear cover 130.

[0074] It can be understood that the heat-conducting coating needs to be in close contact with the surface of the power module 111 to effectively transfer the heat on the power module 111 to the rear cover 130.

[0075] In some embodiments of the present application, the side of the rear cover 130 away from the box body 110 is provided with a plurality of heat dissipation ribs (not shown in the figure). The plurality of heat dissipation ribs are arranged on the rear cover 130 at intervals and extend in the height direction of the fixing frame 300, i.e., the heat dissipation ribs are arranged vertically on the rear cover 130. The heat generated on the power module 111 can be transferred to the rear cover 130 through the heat-conducting coating, and the heat on the rear cover 130 is then transferred to the heat dissipation ribs to gradually reduce the heat on the power module 111, avoid overheating of the inside of the box body 110, ensure the working stability of the power module 111 and the components inside the box body 110, and ensure the display effect of the display screen 10.

[0076] In some embodiments of the present application, referring to Figure 3 and Figure 6 , the power box 100 can further include a first sealing ring 170. The side of the front cover 120 facing the box body 110 is provided with a rectangular-shaped first annular groove (not marked in the figure), and the first sealing ring 170 is clamped in the first annular groove.

[0077] The first sealing ring 170 can be annular in shape to ensure the sealing effect. When the front cover 120 is covered on the first opening side, the first sealing ring 170 is in close contact with the edge of the first opening to avoid external water droplets from entering the box body 110 through the front cover 120, meet the outdoor waterproof requirement, and ensure the display effect of the display screen 10.

[0078] In some embodiments of the present application, referring to Figure 3 and Figure 6 , the power box 100 can further include a second sealing ring 180. The side of the rear cover 130 facing the box body 110 is provided with a rectangular-shaped second annular groove (not marked in the figure), and the second sealing ring 180 is clamped in the second annular groove.

[0079] The second sealing ring 180 can adopt a ring shape to ensure the sealing effect. When the rear cover 130 is covered on the second opening side, the second sealing ring 180 is attached to the edge of the second opening to avoid external water droplets from entering the box body 110 through the rear cover 130, thereby meeting the outdoor waterproof requirement and ensuring the display effect of the display screen 10.

[0080] That is, by respectively arranging the first sealing ring 170 and the second sealing ring 180 on the front cover 120 and the rear cover 130, it can be ensured that water droplets cannot enter the box body 110 from the front cover 120 and the rear cover 130, the dryness inside the box body 110 is ensured, and the working environment of the power supply module 111 and other components inside the box body 110 is ensured, thereby ensuring the display effect of the display screen 10.

[0081] Figure 10 The exploded structural schematic diagram of the concentrator, the power supply fixing plate, the power supply module and the front cover provided by the present application is shown.

[0082] In some embodiments of the present application, as shown in Figure 10 The power supply box 100 can further include a concentrator 190 and a power supply fixing plate 1100. The concentrator 190 is fixed to the front cover 120 by screws or bolts, etc. The power supply fixing plate 1100 is arranged on the side of the concentrator 190 away from the front cover 120, and the power supply fixing plate 1100 is fixedly connected to the concentrator 190. The power supply fixing plate 1100 is provided with a power supply module 111 on the side away from the concentrator 190, and the power supply module 111 is fixedly connected to the power supply fixing plate 1100.

[0083] As shown in Figure 4 When the front maintenance is performed on the power supply box 100, the display screen 10 is first removed from the fixed frame 300 and the front cover 120 is removed, and then the front cover 120 is removed from the first opening of the box body 110. Since the concentrator 190 is fixedly connected to the front cover 120 and the power supply fixing plate 1100 is fixedly connected to the concentrator 190, when the front cover 120 is removed, the concentrator 190, the power supply fixing plate 1100 and the power supply module 111 are removed from the inside of the box body 110, which facilitates the removal of the concentrator 190, the power supply fixing plate 1100 and the power supply module 111 from the front during the front maintenance, realizes the front maintenance of the components inside the entire power supply box 100, improves the convenience of the front maintenance, and makes the front maintenance simpler and more convenient.

[0084] As shown in Figure 5As shown, when the power box 100 is maintained: press the pressing part 1611 on the rear cover 130, so that the first buckle 161 and the second buckle 162 on the rear cover 130 are disengaged, the second end of the rear cover 130 and the box body 110 are disengaged, the rear cover 130 can rotate along the axis of the rotating shaft 153 to move away from the second opening side, thereby opening the second opening, and realizing the rear maintenance and disassembly of the internal components of the power box 100.

[0085] The power box 100 of the present application can realize front maintenance and rear maintenance, which is fast, convenient and efficient. When the power box 100 is maintained, the fixed state of the front cover 120 and the box body 110 is released, the front cover 120 is removed from the first opening, and the front cover 120 does not need to be flipped to the display module 200 side, so that the first opening of the box body 110 can be opened, and the power module 111 and the circuit board in the box body 110 can be maintained. The space required for front maintenance is small, and the maintenance is simple. When the power box 100 is maintained, the rear cover 130 can be rotatably opened to the second opening of the box body 110, so that the power module 111 and the circuit board in the box body 110 can be conveniently maintained.

[0086] Please see Figure 2 As shown, the present application also provides a display screen 10, which comprises a fixed frame 300, a display module 200 and any of the above-described power boxes 100.

[0087] The fixed frame 300 comprises four first support rods 310 connected end to end, and the four first support rods 310 are arranged in a rectangular shape.

[0088] It should be noted that the fixed frame 300 can have a length direction, a width direction and a height direction. When the display screen 10 is viewed, the horizontal direction is the length direction of the fixed frame 300, and the vertical direction is the height direction of the fixed frame 300.

[0089] In addition, two second support rods 320 and third support rods 330 are arranged inside the fixed frame 300 and are parallel to each other, and the second support rods 320 and the third support rods 330 extend in the length direction of the fixed frame 300, i.e. extend in the horizontal direction.

[0090] A plurality of display modules 200 are fixed to the front side of the fixed frame 300, and each display module 200 can comprise a plurality of lamp panels (not shown in the figure). The lamp panel can be an LED lamp panel, a micro LED lamp panel or a mini LED lamp panel.

[0091] The box body 110 of the power box 100 is fixed on the fixed frame 300, and the length direction of the box body 110 is consistent with the length direction of the fixed frame 300. That is, the power box 100 is fixed between the second support rod 320 and the third support rod 330, so that the power box 100 is placed transversely between the second support rod 320 and the third support rod 330.

[0092] In some embodiments of the present application, the display screen 10 includes a plurality of power boxes 100. The plurality of power boxes 100 are arranged in sequence and spaced apart in the length direction of the fixed frame 300, each power box 100 is independent of each other, and each power box 100 controls different display modules 200. By arranging a plurality of independent and spaced apart power boxes 100 on the back side of the display module 200, the size of the power box 100 can be reduced, so that the disassembled part of the front cover 120 is small in volume and light in weight, and single-person operation can be realized, so that the front and rear maintenance of the power box 100 is more convenient.

[0093] In some embodiments of the present application, the plurality of power boxes 100 can also jointly control the same display module 200 to ensure the working state of the display module 200.

[0094] It should be noted that by arranging a plurality of independent power boxes 100 on the back side of the display module 200, it can be determined where the power box 100 fails according to the problem area of the display module 200, and only the power box 100 corresponding to the problem area needs to be maintained, without the need to disassemble all power boxes 100, thereby reducing the maintenance cost.

[0095] Figure 11 A structure schematic diagram of the fixed frame provided by the present application is shown, which is provided with a first power box and a second power box.

[0096] For example, referring to Figure 11 As shown, the display screen includes a first power box 100a and a second power box 100b arranged side by side. The first power box 100a controls the first display module 200, and the first display module 200 includes four lamp panels, that is, the first power box 100a controls four lamp panels. The second power box 100b controls the second display module 200, and the second display module 200 includes four lamp panels, that is, the second power box 100b controls four lamp panels. By using two power boxes 100, the size of the power box 100 can be reduced, and when the front cover 120 is disassembled for front maintenance, the disassembled part of the front cover 120 is small in volume and light in weight, and single-person operation can be realized, so that the front and rear maintenance of the power box 100 is more convenient.

[0097] In the description of the specification, the description of the terms "some embodiments", "exemplarily" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0098] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application. Any changes or modifications made in accordance with the claims and specification of the present application shall be within the scope of the present application.

Claims

1. A power supply box for mounting on a fixed frame of a display screen, the display screen comprising the fixed frame and a display module disposed on the front side of the fixed frame, characterized in that, The power supply box includes: The box body has a power module inside and is fixed to the fixed frame. The length direction of the box body is consistent with the length direction of the fixed frame. The box body has a first opening and a second opening on both sides in the width direction. The first opening faces the front of the fixed frame and the second opening faces the side of the fixed frame away from the display module. A front cover is disposed on the side of the first opening, and the front cover is detachably connected to the box body to open or close the first opening; A rear cover is provided on the second opening side, and the rear cover is rotatably connected to the box body for opening or closing the second opening.

2. The power supply box according to claim 1, characterized in that, The power box also includes a fixing component, and the front cover is detachably connected to the box body through the fixing component; When the front cover is detached from the box body, the fastener is engaged inside the front cover to prevent it from detaching from the front cover.

3. The power supply box according to claim 1, characterized in that, The back cover has a first end and a second end that are disposed opposite to each other. The first end is rotatably connected to the box body, and the second end is detachably connected to the box body.

4. The power supply box according to claim 3, characterized in that, The power supply box also includes: The rotating structure includes a first connecting plate, a second connecting plate, and a rotating shaft for connecting the first connecting plate and the second connecting plate. The axis of the rotating shaft is aligned with the length direction of the fixed frame. The first connecting plate is connected to the first end, and the second connecting plate is connected to the box body. The first end of the rear cover can rotate along the axis of the rotating shaft to move relatively closer to or away from the second opening side, thereby opening or closing the second opening.

5. The power supply box according to claim 3, characterized in that, The power supply box also includes a latching structure, the latching structure comprising: A first fastener is fixed to the second end of the rear cover. The first fastener includes a fastening part and a pressing part. The fastening part has a fastening position that is bent toward itself. The second fastener is fixed to the box body. The second fastener has a limiting opening. The fastener can be engaged in the limiting opening so that the first fastener is fixed to the second fastener to fix the back cover and the box body. The latching part can disengage from the limiting port when the pressing part is pressed, so that the first latching member and the second latching member can disengage from each other.

6. The power supply box according to claim 3, characterized in that, The back cover is coated with a thermally conductive coating on the side closest to the power module, and a heat dissipation rib is provided on the side of the back cover away from the box body. The heat generated by the power module can be transferred to the heat dissipation rib through the thermally conductive coating.

7. The power supply box according to claim 2, characterized in that, The power supply box also includes a first sealing ring; The front cover has a first annular groove on the side facing the box body, and the first sealing ring is engaged in the first annular groove; When the front cover is placed on the first opening side, the first sealing ring fits against the edge of the first opening.

8. The power supply box according to claim 7, characterized in that, The power supply box also includes a second sealing ring; The rear cover has a second annular groove on the side facing the box body, and the second sealing ring is engaged in the second annular groove; When the rear cover is placed on the second opening side, the second sealing ring fits against the edge of the second opening.

9. A display screen, characterized in that, include: Fixed frame; Display modules, multiple display modules are fixed to the front side of the fixed frame; as well as The power supply box according to any one of claims 1 to 8, wherein the box body of the power supply box is fixed on the fixed frame, and the length direction of the box body is consistent with the length direction of the fixed frame.

10. The display screen according to claim 9, characterized in that, The display screen includes multiple power supply boxes, which are arranged sequentially at intervals along the length of the fixed frame, and the multiple power supply boxes independently or jointly control different display modules.

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