Control box and display device

Abstract

This utility model relates to a control box and a display device. The control box is used in the display device, which includes a display screen and functional modules. It includes: a housing disposed behind the display screen, having a first opening facing the outer periphery of the display screen; an inner housing disposed within the housing and capable of sliding into / out of the housing through the first opening, having a second opening facing the display screen, and used to accommodate the functional modules; a first locking assembly including a first locking member disposed on the housing and a second locking member disposed on the inner housing, the first locking member having a slot; in the entered position, the second locking member is inserted into the slot and can cooperate with the first locking member to restrict the inner housing from sliding out of the housing; in the exit position, the second locking member disengages from the slot. The control box enables front maintenance of the functional modules without affecting the size of the display device and the screen ratio; the first locking assembly ensures the stability and reliability of the inner housing in the entered position.

Description

Technical Field

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

[0002] LED displays and other display devices typically need to integrate multiple functional modules such as speakers, buttons, and interfaces. To meet the front maintenance requirements of wall-mounted and bracket-mounted installations, most existing display devices have a crossbeam added below the display screen for installing these functional modules. However, this not only affects the aesthetics of the display device but also leads to an increase in its size or necessitates sacrificing the screen's aspect ratio. Utility Model Content

[0003] Therefore, it is necessary to provide a control box and display device to address the above problems, so as to realize the front maintenance requirements of the functional modules without affecting the size of the display device and the screen ratio.

[0004] This utility model first provides a control box for a display device, the display device including a display screen and a functional module, comprising: a housing for being disposed on the rear side of the display screen, the housing having a first opening facing the outer periphery of the display screen; an inner housing disposed within the housing and capable of sliding into / out of the housing through the first opening, the inner housing having a second opening facing the display screen, the inner housing for accommodating the functional module; and a first locking assembly including a first locking member disposed on the housing and a second locking member disposed on the inner housing, the first locking member having a slot; in the in position, the second locking member is inserted into the slot and can cooperate with the first locking member to restrict the inner housing from sliding out of the housing; in the out position, the second locking member disengages from the slot.

[0005] In the aforementioned control box, the control box is located behind the display screen to avoid affecting the size of the display device and the screen ratio. The size of the control box can be increased as needed to accommodate more functional modules within the inner shell. In the access position, the display screen can conceal the control box, thus improving the aesthetics of the display device. When maintenance of a functional module is required, the first and second locking components are first separated, and then the inner shell is slid to the exit position, exposing it to the outer perimeter of the display screen. This allows for front maintenance of the functional module through the second opening. After maintenance, the inner shell is slid to the access position, allowing the second locking component to insert into the slot. Then, the first and second locking components engage to prevent the inner shell from accidentally exiting the outer shell, ensuring the stability and reliability of the inner shell in the access position. Furthermore, the slot can position the first locking component, ensuring accurate engagement of the first and second locking components for user operation.

[0006] In one embodiment, the control box further includes a second locking component, which includes a third locking member and a fourth locking member, one of which is disposed on the outer shell and the other on the inner shell; in the in-place position, the third locking member can cooperate with the fourth locking member to restrict the inner shell from sliding out of the outer shell.

[0007] With this configuration, the first locking component and the second locking component can form a double locking protection, preventing the inner shell from accidentally sliding out of the outer shell due to the failure of the first locking component, thereby improving the stability and reliability of the inner shell in the entry position.

[0008] In one embodiment, the fourth locking member has a protrusion, and the third locking member includes two oppositely arranged latches that can move closer to or further away from each other to clamp or release the protrusion.

[0009] With this configuration, the second locking component has a simple structure and low maintenance cost.

[0010] In one embodiment, the third locking member further includes a third bracket and two third elastic members arranged in a one-to-one correspondence with the buckle. The buckle is rotatably disposed on the third bracket, and the third elastic member is disposed between the third bracket and the corresponding buckle, and is capable of applying a force to the buckle to make it rotate toward the other buckle. The buckle is provided with a third guide surface on the side facing the protrusion that can slide with the protrusion, and / or, the protrusion is provided with a fourth guide surface on the side facing the buckle that can slide with the buckle.

[0011] This design allows users to easily engage and disengage the third and fourth locking components by applying a large pulling or pushing force to the inner shell, making the operation simple and convenient.

[0012] In one embodiment, the inner wall of the slot is provided with a groove, and the first locking member further includes a locking block slidably disposed in the groove; the second locking member includes a rod portion, an insertion portion and a sliding portion, the rod portion is slidably disposed in the inner shell, the insertion portion is disposed at one end of the rod portion facing the first locking member, and the sliding portion is slidably disposed in the rod portion; the sliding portion has a first state and a second state, in the first state, the sliding portion and the insertion portion are spaced apart to form a locking groove that can engage with the locking block, and in the second state, the sliding portion is in contact with the insertion portion.

[0013] This design ensures the stability and reliability of the first and second locking components when they cooperate with each other.

[0014] In one embodiment, the first opening faces downwards, the side of the insertion portion opposite to the sliding portion is provided with a first guide surface that can slide and engage with the locking block, the side of the sliding portion opposite to the insertion portion is provided with a second guide surface that can slide and engage with the locking block, and the side of the locking block facing the first opening is provided with a fifth guide surface that can slide and engage with the insertion portion and the sliding portion; the first locking member further includes a first elastic member disposed between the locking block and the bottom wall of the slide groove, the first elastic member being able to apply a force to the locking block to make it slide closer to the slot; the second locking member further includes a second elastic member disposed between the rod portion and the inner shell, the second elastic member being able to apply a force to the rod portion to make it slide away from the first locking member.

[0015] This design allows users to easily engage and disengage the first and second locking components simply by controlling the movement of the lever towards the first locking component.

[0016] In one embodiment, the second locking member further includes an operating part disposed at one end of the rod portion away from the insertion portion, the operating part extending out of the inner shell from one side away from the outer shell.

[0017] This design allows the operating unit to be easily moved by the user towards the direction of the lever body, which is closer to the first locking element.

[0018] In one embodiment, the number of the first locking components is at least two sets, and each set of the first locking components is arranged at intervals along a sliding direction perpendicular to the inner shell.

[0019] This design ensures the stability and reliability of the inner shell in the entry position, preventing the inner shell from accidentally sliding out of the outer shell due to the failure of a set of first locking components.

[0020] In one embodiment, the control box further includes at least one slide rail extending along the sliding direction of the inner shell, with both ends of the slide rail connected to the outer shell and the inner shell respectively; and / or, the control box further includes a handle rotatably disposed on a side of the inner shell opposite to the outer shell.

[0021] With this design, the slide rail is used to limit the sliding direction of the inner shell, ensuring that the inner shell can slide smoothly, while also preventing the inner shell from completely coming out of the outer shell; when the handle is turned to the storage state, it will not protrude excessively from the inner shell, thereby improving the aesthetics of the control box; when the handle is turned to the unfolded state, it is convenient for the user to control the inner shell to slide into or out of the outer shell.

[0022] This utility model also provides a display device, including a display screen, a functional module, and a control box as described above.

[0023] This setup allows for front-maintenance of functional modules via the control box without affecting the size of the display device or the screen ratio. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a display device according to one embodiment of the present invention, wherein the inner shell is in the inserted position;

[0026] Figure 2 for Figure 1 A schematic diagram of the display device from a side view.

[0027] Figure 3 for Figure 1 A schematic diagram of the structure of the display device, in which the inner shell is in the retracted position;

[0028] Figure 4 for Figure 3 A schematic diagram of the display device from a side view.

[0029] Figure 5 This is a three-dimensional structural diagram of the control box according to one embodiment of the present invention, wherein the inner shell is in the inserted position;

[0030] Figure 6 for Figure 5 A schematic diagram of the control box, showing the inner shell in the retracted position;

[0031] Figure 7 for Figure 5 A schematic diagram of the internal structure of the control box;

[0032] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0033] Figure 9 for Figure 8 A three-dimensional structural diagram of the first locking component;

[0034] Figure 10 for Figure 9 A partial structural diagram of the second locking element;

[0035] Figure 11 for Figure 9 Cross-section of the first locking component Figure 1 ;

[0036] Figure 12 for Figure 9 Cross-section of the first locking component Figure 2 ;

[0037] Figure 13 for Figure 9 Cross-section of the first locking component Figure 3 ;

[0038] Figure 14 for Figure 9 Cross-section of the first locking component Figure 4 ;

[0039] Figure 15 for Figure 9 Cross-section of the first locking component Figure 5 ;

[0040] Figure 16 for Figure 11 Enlarged view of point B in the middle;

[0041] Figure 17 for Figure 8 A three-dimensional structural diagram of the second locking component, in which the snap-clamping protrusion is shown;

[0042] Figure 18 for Figure 8 A three-dimensional structural diagram of the second locking component, showing the latch release protrusion.

[0043] Reference numerals: 100, control box; 1, outer shell; 11, first opening; 2, inner shell; 21, second opening; 3, first locking assembly; 31, first locking element; 311, slot; 312, slide groove; 313, locking block; 3131, fifth guide surface; 3132, limiting part; 314, first elastic element; 315, first bracket; 316, base; 32, second locking element; 321, rod part; 322, insertion part; 3221, first guide surface; 323, sliding part; 3231, fifth locking element; 322, first locking element; 323, second locking element; 323 ... 324. Locking groove; 325. Second elastic element; 326. Operating part; 327. Second bracket; 328. Abutting part; 329. Limiting groove; 4. Second locking assembly; 41. Third locking element; 411. Buckle; 4111. Third guide surface; 412. Third bracket; 413. Third elastic element; 42. Fourth locking element; 421. Protrusion; 4211. Fourth guide surface; 422. Fourth bracket; 5. Slide rail; 6. Handle; 200. Display screen; 300. Functional module. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0046] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0049] LED displays and other display devices typically need to integrate multiple functional modules such as speakers, buttons, and interfaces. To meet the front maintenance requirements of wall-mounted and bracket-mounted installations, most existing display devices have a crossbeam added below the display screen for installing these functional modules. However, this not only affects the aesthetics of the display device but also leads to an increase in its size or necessitates sacrificing the screen's aspect ratio.

[0050] To solve the above problems, such as Figures 1 to 18 As shown, this utility model provides a control box and display device that achieves the front maintenance requirements of functional modules without affecting the size of the display device and the screen ratio.

[0051] like Figure 2 , Figure 6 and Figure 11 As shown, specifically, the control box 100 is used for a display device, which includes a display screen 200 and a functional module 300. The control box 100 includes a housing 1, an inner housing 2, and a first locking assembly 3, wherein: the housing 1 is disposed on the rear side of the display screen 200, and the housing 1 has a first opening 11 facing the outer periphery of the display screen 200; the inner housing 2 is disposed inside the housing 1 and can slide into or out of the housing 1 through the first opening 11, and the inner housing 2 has a second opening 21 facing the display screen 200, and the inner housing 2 is used to accommodate the functional module 300; the first locking assembly 3 includes a first locking member 31 disposed on the housing 1 and a second locking member 32 disposed on the inner housing 2, the first locking member 31 having a slot 311; in the in position, the second locking member 32 is inserted into the slot 311 and can cooperate with the first locking member 31 to restrict the inner housing 2 from sliding out of the housing 1; in the out position, the second locking member 32 is disengaged from the slot 311.

[0052] In the control box 100 provided in this embodiment of the utility model, the control box 100 is located behind the display screen 200 to avoid affecting the size of the display device and the screen 200 ratio. The size of the control box 100 can be increased as needed, allowing the inner shell 2 to accommodate more functional modules 300. In the accessed position, the display screen 200 can cover the control box 100, thereby improving the aesthetics of the display device. When maintenance of the functional module 300 is required, the first locking member 31 and the second locking member 32 are first separated, and then the inner shell 2 is slid to the exited position, allowing the inner shell to... 2 is exposed on the outer periphery of the display screen 200, so that the front maintenance requirements of the functional module 300 can be met through the second opening 21; after maintenance, the inner shell 2 is first controlled to slide to the entry position, so that the second locking member 32 is inserted into the slot 311, and then the first locking member 31 and the second locking member 32 are controlled to cooperate with each other to prevent the inner shell 2 from accidentally exiting the outer shell 1, and to ensure the stability and reliability of the inner shell 2 in the entry position; in addition, the slot 311 can position the first locking member 31 to ensure that the first locking member 31 and the second locking member 32 can cooperate accurately, so as to facilitate user operation.

[0053] like Figures 1 to 4 As shown, in one embodiment, the first opening 11 faces downwards, allowing the inner shell 2 to slide downwards to the exit position. The control box 100 is preferably located at the bottom rear of the display screen 200, resulting in a shorter sliding stroke for the inner shell 2. Of course, in other embodiments, the first opening 11 can also face upwards, allowing the inner shell 2 to slide upwards to the exit position; or, the first opening 11 can also face to the sides, allowing the inner shell 2 to slide to the sides to the exit position. For ease of description, the following explanation uses the example of the first opening 11 facing downwards.

[0054] like Figures 10 to 13As shown, in one embodiment, the inner wall of the slot 311 is provided with a groove 312, and the first locking member 31 further includes a locking block 313 slidably disposed in the groove 312; the second locking member 32 includes a rod portion 321, an insertion portion 322 and a sliding portion 323, the rod portion 321 is slidably disposed in the inner shell 2, the insertion portion 322 is disposed at one end of the rod portion 321 facing the first locking member 31, and the sliding portion 323 is slidably disposed in the rod portion 321; the sliding portion 323 has a first state and a second state. In the first state, the sliding portion 323 and the insertion portion 322 are arranged at intervals to form a locking groove 324 that can engage with the locking block 313. In the second state, the sliding portion 323 and the insertion portion 322 are in contact. When the first locking member 31 and the second locking member 32 cooperate, the sliding part 323 is in the first state, and the locking block 313 extends out of the sliding groove 312 and engages with the locking groove 324 to prevent the insertion part 322 from dislodging from the slot 311. When the functional module 300 needs maintenance, the locking block 313 is first controlled to retract into the sliding groove 312, and the sliding part 323 is controlled to slide to the second state, so that the locking block 313 cannot be inserted between the sliding part 323 and the insertion part 322. Then, the inner shell 2 is controlled to slide to the exit position. After maintenance, the sliding part 323 is first controlled to slide to the first state, and then the inner shell 2 is controlled to slide to the entry position. Finally, the locking block 313 extends out of the sliding groove 312 and engages with the locking groove 324. In this way, the stability and reliability of the first locking member 31 and the second locking member 32 when they cooperate can be ensured.

[0055] The number of locking blocks 313 can be 1, 2, 3, 4 or more. Multiple locking blocks 313 are arranged at intervals along the circumference of the slot 311. The cooperation of two or more locking blocks 313 with the locking groove 324 can further improve the stability and reliability of the first locking member 31 and the second locking member 32 when they cooperate with each other.

[0056] like Figure 9 and Figure 11 As shown, specifically, the first locking member 31 further includes a first bracket 315 and a base 316 disposed on the first bracket 315. The first bracket 315 is disposed on the inner wall of the outer casing 1, and the base 316 is provided with a slot 311 and a sliding groove 312. The second locking member 32 further includes a second bracket 327, which is disposed on the outer wall of the inner casing 2. The rod portion 321 is slidably disposed on the second bracket 327. The outer peripheral wall of the rod portion 321 is provided with a limiting groove 329 extending along the length direction of the rod portion 321, and the sliding portion 323 is slidably disposed in the limiting groove 329 to limit the stroke of the sliding portion 323.

[0057] like Figure 11 and Figure 16As shown, further, the insertion part 322 is provided with a first guide surface 3221 on the side away from the sliding part 323, which can slide and cooperate with the locking block 313; the sliding part 323 is provided with a second guide surface 3231 on the side away from the insertion part 322, which can slide and cooperate with the locking block 313; the locking block 313 is provided with a fifth guide surface 3131 on the side facing the first opening 11, which can slide and cooperate with the insertion part 322 and the sliding part 323; the first locking member 31 also includes a first elastic member 314 disposed between the locking block 313 and the bottom wall of the slide groove 312, the first elastic member 314 can apply a force to the locking block 313 to make it slide closer to the slot 311; the second locking member 32 also includes a second elastic member 325 disposed between the rod part 321 and the inner shell 2, the second elastic member 325 can apply a force to the rod part 321 to make it slide away from the first locking member 31. Among them, the first guide surface 3221, the second guide surface 3231 and the fifth guide surface 3131 can be inclined surfaces, arc surfaces or surfaces formed by splicing multiple surfaces, as long as they can play a guiding role; the first elastic element 314 and the second elastic element 325 can be elastic elements such as compression springs and silicone rubber parts, and this embodiment of the utility model does not impose specific limitations.

[0058] When it is necessary to maintain functional module 300, such as Figures 11 to 12 As shown, the control lever body 321, insertion part 322, and sliding part 323 slide together toward the first locking member 31 until... Figure 12 As shown in the diagram, during the process, the sliding part 323 slides in conjunction with the fifth guide surface 3131 to push the locking block 313 back into the slide groove 312. Figures 12 to 13 As shown, the second elastic member 325 is compressed and applies a force to the rod portion 321, causing it to slide away from the first locking member 31, so that the rod portion 321 and the insertion portion 322 slide together toward the side away from the first locking member 31. Figure 13 As shown in the diagram, during the process, the locking block 313 pushes against the sliding part 323 under the action of the first elastic member 314, so that the sliding part 323 is fixed relative to the locking block 313, that is, the sliding part 323 slides relative to the rod part 321 and the insertion part 322 to the position shown in the diagram. Figure 13 The location shown. (As indicated) Figures 13 to 14 As shown, the second elastic member 325 is still compressed and applies a force to the rod portion 321, causing it to slide away from the first locking member 31. This causes the rod portion 321, the insertion portion 322, and the sliding portion 323 to slide together toward the side away from the first locking member 31. Figure 14 As shown in the diagram, during the process, the second guide surface 3231 slides against the locking block 313 to push the locking block 313 back into the slide groove 312. For example... Figures 14 to 15As shown, the inner shell 2 is finally slid to the exit position, so that the first locking member 31 and the second locking member 32 are completely separated. Under its own gravity, the sliding part 323 slides relative to the rod part 321 and the insertion part 322. Figure 15 At the position shown, the sliding part 323 and the insertion part 322 form a locking groove 324.

[0059] After maintenance is completed, such as Figure 11 As shown, firstly, the inner shell 2 is slid to the entry position, so that the insertion part 322 is inserted into the slot 311. During this process, the first guide surface 3221 and the fifth guide surface 3131 slide together to push the locking block 313 back into the slide groove 312. Then, the rod body 321, the insertion part 322, and the sliding part 323 are slid together toward the first locking member 31. Figure 11 As shown, the locking block 313 extends out of the slide groove 312 under the action of the first elastic element 314 and engages with the locking groove 324. Thus, through the cooperation of the first guide surface 3221, the second guide surface 3231, the fifth guide surface 3131, the first elastic element 314, and the second elastic element 325, the user only needs to control the movement of the rod body 321 towards the first locking element 31 to achieve the engagement and disengagement of the first locking element 31 and the second locking element 32, making operation simple and convenient. Furthermore, the first guide surface 3221, the second guide surface 3231, and the fifth guide surface 3131 also prevent the first locking element 31 and the second locking element 32 from jamming during movement, and the first elastic element 314 and the second elastic element 325 also provide a pre-tightening effect, improving the stability and reliability of the first locking element 31 and the second locking element 32 in the engaged state.

[0060] like Figures 9 to 11 As shown, specifically, the second locking member 32 further includes an abutment portion 328 protruding from the outer periphery of the rod portion 321, and the second elastic member 325 is sleeved on the rod portion 321, with both ends abutting against the second bracket 327 and the abutment portion 328 respectively. The locking block 313 also has a limiting portion 3132 protruding from one end away from the fifth guide surface 3131. The limiting portion 3132 can abut against the outer wall of the base 316 to limit the travel of the locking block 313.

[0061] Of course, in other embodiments, the first locking member 31 and the second locking member 32 can also adopt other matching structures such as ordinary buckle structure and rotation limiting structure. For example, when the first locking member 31 rotates relative to the second locking member 32 to a preset angle, the two limit each other. As long as it is ensured that the inner shell 2 can slide out of the outer shell 1 when the first locking member 31 and the second locking member 32 are separated, and the first locking member 31 and the second locking member 32 can restrict the inner shell 2 from sliding out of the outer shell 1 when they cooperate with each other, this utility model embodiment does not make specific limitations here.

[0062] like Figures 8 to 9As shown, in one embodiment, the second locking member 32 further includes an operating part 326 disposed at the end of the rod portion 321 away from the insertion portion 322, the operating part 326 extending out of the inner shell 2 away from the outer shell 1. The operating part 326 allows the user to easily control the rod portion 321 to move towards the first locking member 31. Of course, in other embodiments, the rod portion 321 can also be driven by other driving elements such as a push rod motor or a solenoid valve disposed in the inner shell 2, and this embodiment of the present invention does not impose specific limitations here.

[0063] like Figures 6 to 7 As shown in the illustrated embodiment, the number of first locking components 3 is at least two sets, with each set of first locking components 3 arranged at intervals along a direction perpendicular to the sliding direction of the inner shell 2. Preferably, the number of first locking components 3 is two sets, with the two sets of first locking components 3 respectively disposed on both sides of the inner shell 2. This ensures the stability and reliability of the inner shell 2 in the inserted position and prevents the inner shell 2 from accidentally sliding out of the outer shell 1 due to the failure of one set of first locking components 3. Of course, in other embodiments, the number of first locking components 3 can also be one set, provided that the stability and reliability of the inner shell 2 in the inserted position are ensured.

[0064] like Figures 6 to 8 As shown, the control box 100 also includes a second locking component 4, which includes a third locking member 41 and a fourth locking member 42. One of the third locking member 41 and the fourth locking member 42 is disposed on the outer shell 1, and the other is disposed on the inner shell 2. In the entered position, the third locking member 41 can cooperate with the fourth locking member 42 to prevent the inner shell 2 from sliding out of the outer shell 1. In this way, the first locking component 3 and the second locking component 4 can form a double locking protection, avoiding the inner shell 2 from accidentally sliding out of the outer shell 1 due to the failure of the first locking component 3, thereby further improving the stability and reliability of the inner shell 2 in the entered position.

[0065] like Figures 17 to 18 As shown, in one embodiment, the fourth locking member 42 has a protrusion 421, and the third locking member 41 includes two oppositely arranged latches 411, which can move closer or further apart to clamp or release the protrusion 421. When the functional module 300 needs maintenance, the first locking member 31 and the second locking member 32 are first controlled to separate, and the two latches 411 are controlled to move further apart to release the protrusion 421. Then, the inner shell 2 is controlled to slide to the exit position. After maintenance, the inner shell 2 is first controlled to slide to the entry position, and then the first locking member 31 and the second locking member 32 are controlled to engage with each other, and the two latches 411 are controlled to move closer together to clamp the protrusion 421. Thus, the structure of the second locking assembly 4 is simple and the maintenance cost is low.

[0066] like Figures 17 to 18As shown, the third locking member 41 further includes a third bracket 412 and two third elastic members 413 arranged one-to-one with the latches 411. The latches 411 are rotatably disposed on the third bracket 412, and the third elastic members 413 are disposed between the third bracket 412 and the corresponding latches 411, and can apply a force to the latches 411 to make them rotate closer to the other latches 411. The side of the latches 411 facing the protrusion 421 is provided with a third guide surface 4111 that can slide with the protrusion 421, and the side of the protrusion 421 facing the latches 411 is provided with a fourth guide surface 4211 that can slide with the latches 411. Alternatively, only the third guide surface 4111 or the fourth guide surface 4211 may be provided. The third guide surface 4111 and the fourth guide surface 4211 can be inclined surfaces, arc surfaces, or surfaces formed by splicing multiple surfaces, as long as they can play a guiding role. In the illustrated embodiment, the protrusion 421 is cylindrical, and the fourth guide surface 4211 is an arc surface adapted to the outer peripheral wall of the cylinder. The third elastic element 413 can be a compression spring, a silicone rubber part, a torsion spring, or other elastic element. This embodiment of the present invention does not impose specific limitations.

[0067] When maintenance of the functional module 300 is required, the first locking member 31 and the second locking member 32 are first separated, and a large pulling force is applied to the inner shell 2. Under the action of the third guide surface 4111 and the fourth guide surface 4211, the two latches 411 rotate toward the side away from each other to release the protrusion 421. At this time, the third elastic member 413 is compressed. After the latches 411 and the protrusion 421 are completely separated, the two latches 411 rotate toward the side closer to each other to reset under the action of the third elastic member 413. After maintenance is completed, a large pushing force is first applied to the inner shell 2. Under the action of the third guide surface 4111 and the fourth guide surface 4211, the two latches 411 rotate toward the side away from each other, so that the protrusion can be engaged between the two latches 411. At this time, the third elastic member 413 is compressed. When the inner shell 2 slides to the entry position, the two latches 411 rotate toward the side closer to each other under the action of the third elastic member 413 to clamp the protrusion 421. Thus, through the cooperation of the third guide surface 4111, the fourth guide surface 4211, and the third elastic element 413, the user only needs to apply a large pulling or pushing force to the inner shell 2 to achieve the engagement and disengagement of the third locking element 41 and the fourth locking element 42, making operation simple and convenient. Furthermore, the third guide surface 4111 and the fourth guide surface 4211 can prevent the third locking element 41 and the fourth locking element 42 from jamming during movement, and the third elastic element 413 can also play a pre-tightening role, improving the stability and reliability of the third locking element 41 and the fourth locking element 42 in the engaged state.

[0068] like Figure 8 and Figure 17As shown, specifically, the fourth locking member 42 also includes a fourth bracket 422, and a protrusion 421 protrudes from the fourth bracket 422. In the illustrated embodiment, the fourth bracket 422 is disposed on the inner wall of the outer shell 1 away from the first opening 11, and the third bracket 412 is disposed on the outer wall of the inner shell 2 facing the fourth locking member 42.

[0069] Of course, in other embodiments, the third locking member 41 and the fourth locking member 42 can also adopt other mating structures such as ordinary snap-fit ​​structures, plug-in structures, and magnetic structures, as long as it ensures that the inner shell 2 can slide out of the outer shell 1 when the third locking member 41 and the fourth locking member 42 are separated, and that the third locking member 41 and the fourth locking member 42 can restrict the inner shell 2 from sliding out of the outer shell 1 when they are engaged. This embodiment of the present invention does not impose specific limitations here. Furthermore, the engagement and disengagement of the third locking member 41 and the fourth locking member 42 can also be controlled by other driving elements such as drive motors and electromagnets.

[0070] like Figures 6 to 7 As shown in the illustrated embodiment, the number of second locking components 4 is at least two sets, with each set of second locking components 4 arranged at intervals along a direction perpendicular to the sliding direction of the inner shell 2. This further improves the stability and reliability of the inner shell 2 in the inserted position, preventing the inner shell 2 from accidentally sliding out of the outer shell 1 due to the failure of one set of second locking components 4. Of course, in other embodiments, the number of second locking components 4 can also be one set, provided that the stability and reliability of the inner shell 2 in the inserted position are guaranteed.

[0071] like Figures 6 to 8 As shown, the control box 100 also includes at least one slide rail 5 extending along the sliding direction of the inner shell 2, with both ends of the slide rail 5 connected to the outer shell 1 and the inner shell 2, respectively. The slide rail 5 is used to limit the sliding direction of the inner shell 2, ensuring that the inner shell 2 can slide smoothly, while also preventing the inner shell 2 from completely detaching from the outer shell 1. In the illustrated embodiment, the slide rail 5 is a multi-segment telescopic slide rail, such as 2 segments, 3 segments, 4 segments, or more segments, to extend the sliding stroke of the inner shell 2 while reducing the size of the slide rail 5 in the retracted state. Of course, in other embodiments, the slide rail 5 can also be other types of slide rail structures such as linear guide rails, as long as it ensures that the inner shell 2 can slide into or out of the outer shell 1. This embodiment of the present invention does not impose specific limitations here.

[0072] like Figures 6 to 7 As shown in the illustrated embodiment, the number of slide rails 5 is at least two sets, with each set of slide rails 5 arranged at intervals along a direction perpendicular to the sliding direction of the inner shell 2. Preferably, the number of slide rails 5 is two sets, with the two sets of slide rails 5 respectively disposed on both sides of the inner shell 2. This improves the stability and reliability of the inner shell 2 during sliding. Of course, in other embodiments, the number of slide rails 5 can also be one set, provided that the stability and reliability of the inner shell 2 during sliding are guaranteed.

[0073] like Figures 5 to 7 As shown, in one embodiment, the control box 100 further includes a handle 6, which is rotatably disposed on a side of the inner shell 2 opposite to the outer shell 1. The handle 6 is rotated to... Figure 5 and Figure 7 When folded as shown, it does not protrude excessively from the inner shell 2, thus improving the aesthetics of the control box 100; the handle 6 is rotated to the position shown. Figure 6 In the unfolded state shown, the inner shell 2 can be easily slid into or out of the outer shell 1. Of course, in other embodiments, the handle 6 may also protrude from the outer wall of the inner shell 2, or a groove may be provided on the outer wall of the inner shell 2 to form a handle structure.

[0074] like Figures 1 to 4 As shown, this embodiment of the present invention also provides a display device, including a display screen 200, a functional module 300, and the aforementioned control box 100. The control box 100 is disposed on the rear side of the display screen 200, and the functional module 300 is disposed within the inner shell 2 of the control box 100. In this way, the front maintenance requirements of the functional module 300 can be met through the control box 100 without affecting the size of the display device or the aspect ratio of the display screen 200. Furthermore, when the inner shell 2 is in the closed position, the display screen 200 can obscure the control box 100, thereby improving the aesthetics of the display device.

[0075] The display screen 200 can be formed by splicing multiple LED screens or it can be a single, complete screen. The functional module 300 includes a PCB board, a speaker module, a receiver module, etc. The number of control boxes 100 can be one, two, three, or more. Multiple control boxes 100 can be arranged side-by-side along the length or width of the display screen 200, or they can be arranged around the circumference of the display screen 200, as long as the control boxes 100 do not interfere with each other. The specific arrangement can be adjusted according to the size and structure of the display screen 200 and the number of functional modules 300. This embodiment of the invention does not impose specific limitations here.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A control box for a display device, said display device comprising a display screen (200) and a functional module (300), characterized in that, include: A housing (1) is provided on the rear side of the display screen (200), the housing (1) having a first opening (11) facing the outer periphery of the display screen (200). An inner shell (2), disposed within the outer shell (1), and capable of sliding into / out of the outer shell (1) through the first opening (11), the inner shell (2) having a second opening (21) facing the display screen (200), the inner shell (2) for accommodating the functional module (300); and, The first locking component (3) includes a first locking member (31) disposed on the outer shell (1) and a second locking member (32) disposed on the inner shell (2). The first locking member (31) is provided with a slot (311). In the in position, the second locking member (32) is inserted into the slot (311) and can cooperate with the first locking member (31) to restrict the inner shell (2) from sliding out of the outer shell (1). In the out position, the second locking member (32) is dislodged from the slot (311).

2. The control box according to claim 1, characterized in that, The control box also includes a second locking component (4), which includes a third locking member (41) and a fourth locking member (42). One of the third locking member (41) and the fourth locking member (42) is disposed on the outer shell (1), and the other is disposed on the inner shell (2). In the engaged position, the third locking member (41) can cooperate with the fourth locking member (42) to restrict the inner shell (2) from sliding out of the outer shell (1).

3. The control box according to claim 2, characterized in that, The fourth locking member (42) is provided with a protrusion (421), and the third locking member (41) includes two oppositely arranged buckles (411), which can move closer to / away from each other to clamp / release the protrusion (421).

4. The control box according to claim 3, characterized in that, The third locking member (41) further includes a third bracket (412) and two third elastic members (413) arranged in a one-to-one correspondence with the buckle (411). The buckle (411) is rotatably disposed on the third bracket (412), and the third elastic member (413) is disposed between the third bracket (412) and the corresponding buckle (411), and can apply a force to the buckle (411) to make it rotate toward the other buckle (411). The buckle (411) is provided with a third guide surface (4111) on the side facing the protrusion (421) that can slide with the protrusion (421), and / or, the protrusion (421) is provided with a fourth guide surface (4211) on the side facing the buckle (411) that can slide with the buckle (411).

5. The control box according to claim 1, characterized in that, The inner wall of the slot (311) is provided with a groove (312), and the first locking member (31) further includes a locking block (313) slidably disposed in the groove (312); the second locking member (32) includes a rod part (321), an insertion part (322) and a sliding part (323), the rod part (321) is slidably disposed in the inner shell (2), the insertion part (322) is disposed at one end of the rod part (321) facing the first locking member (31), and the sliding part (323) is slidably disposed in the rod part (321). The sliding part (323) has a first state and a second state. In the first state, the sliding part (323) and the insertion part (322) are arranged at a distance to form a locking groove (324) that can engage with the locking block (313). In the second state, the sliding part (323) and the insertion part (322) are in contact.

6. The control box according to claim 5, characterized in that, The first opening (11) faces downward. The insertion part (322) is provided with a first guide surface (3221) on the side away from the sliding part (323) that can slide with the locking block (313). The sliding part (323) is provided with a second guide surface (3231) on the side away from the insertion part (322) that can slide with the locking block (313). The locking block (313) is provided with a fifth guide surface (3131) on the side facing the first opening (11) that can slide with the insertion part (322) and the sliding part (323). The first locking member (31) further includes a first elastic member (314) disposed between the bottom wall of the locking block (313) and the slide groove (312), the first elastic member (314) being able to apply a force to the locking block (313) to make it slide closer to the slot (311); the second locking member (32) further includes a second elastic member (325) disposed between the rod part (321) and the inner shell (2), the second elastic member (325) being able to apply a force to the rod part (321) to make it slide away from the first locking member (31).

7. The control box according to claim 5, characterized in that, The second locking member (32) further includes an operating part (326) disposed at one end of the rod body (321) away from the insertion part (322), the operating part (326) extending out of the inner shell (2) on one side away from the outer shell (1).

8. The control box according to claim 1, characterized in that, The number of the first locking components (3) is at least two sets, and each set of the first locking components (3) is arranged at intervals along the sliding direction perpendicular to the inner shell (2).

9. The control box according to claim 1, characterized in that, The control box further includes at least one slide rail (5) extending along the sliding direction of the inner shell (2), the two ends of the slide rail (5) being connected to the outer shell (1) and the inner shell (2) respectively; and / or, The control box also includes a handle (6), which is rotatably disposed on one side of the inner shell (2) away from the outer shell (1).

10. A display device, characterized in that, It includes a display screen (200), a functional module (300), and a control box as described in any one of claims 1-9.

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