Panel converter

Abstract

The present application discloses a panel converter, comprising a rear housing and a panel. The rear housing comprises a bottom wall and side walls; the bottom wall comprises a first bottom wall and a second bottom wall; the second bottom wall internally retracts towards the panel to form a first plug-in space and a power supply plug-in end having a height lower than that of the first bottom wall; the power supply plug-in end is provided with at least a neutral wire pin and a live wire pin. The rear housing and one side of the panel define an accommodating space in which conversion circuits are mounted. The neutral wire pin and the live wire pin extend out of the second bottom wall to ensure the plug-in lengths of the pins. According to the panel converter of the present application, by arranging conversion circuits having different functions behind the panel in a modulization mode, and completing plug-in electrical connection between the power supply plug-in end and an adapter box within the range of height of the rear housing in a spatial misalignment manner, the panel converter, with a small size, converts and outputs an alternating current or direct current for intelligent control to an electric terminal, and can be completely embedded in a wall after being mounted, so that the wall is flat and attractive, has rich functions, and is convenient to mount and dismount.

Description

A panel converter Technical Field

[0001] The present application relates to the technical field of Internet of Things intelligent switch panels, and in particular to a panel converter. Background Art

[0002] With the development of the Internet and Internet of Things technology, smart furniture is becoming more and more popular and used, such as smart door locks, electric curtains, or smart home appliances.

[0003] In the prior art, in order to use smart furniture, it is necessary to set up a smart or scene switch converter. At the same time, in order to use smart terminals, such as mobile phones or tablets, different power supplies need to be provided, such as AC power output or USB DC voltage output.

[0004] Existing smart or scene switch converters are generally a wall-mounted adapter board that extends from a standard AC power socket on the wall to connect to multiple branch circuits. At the same time, the adapter board further extends to connect to smart switch panels and multi-port USB panels.

[0005] The standard dimensions of existing 86-type junction boxes are 86*86*32 mm. Conventional outlets installed using 86-type junction boxes typically have a five- or four-hole panel that is screwed into the concealed 86-type junction box. Due to its aesthetically pleasing concealed design, it has long been widely adopted as a standard building material. These conventional outlets, typically with five or four holes, provide power for various appliances in offices and daily life. In IoT, remote control, or multi-port DC output scenarios, plugging in conventional splitter adapters requires significant space within the standard wall junction box and requires the splitter adapters to protrude further from the wall to accommodate various smart panels. This conventional plug-in method for splitter adapters and various smart panels causes the overall smart conversion device to protrude significantly from the wall, impacting the aesthetics of interior decoration. Furthermore, with the multi-layered plug-in method, the panel pins require mechanical connections in addition to electrical connections. This can easily cause them to fall out if the connection is unstable or if they are accidentally bumped. This poor electrical connection stability for IoT-based smart furniture compromises the overall user experience. Summary of the Invention

[0006] Based on this, in order to solve the above-mentioned problems in traditional technology, the present application proposes a method of setting conversion circuits with different functions on the rear of the panel in a modular manner, and completing the plug-in electrical connection between the power plug terminal and the adapter box within the height range of the rear shell through spatial dislocation, so as to output intelligently controlled AC or DC power to the power terminal in a smaller volume. After installation, the wall surface is flat and beautiful, and the panel converter is rich in functions and easy to assemble and disassemble.

[0007] The present application relates to a panel converter, comprising a rear shell and a panel, the rear shell comprising a bottom wall and side walls, the bottom wall comprising a first bottom wall and a second bottom wall, the second bottom wall being retracted inwardly toward the panel to form a first plug-in space and a power plug terminal whose height is lower than the bottom wall, the power plug terminal being provided with at least a neutral wire pin and a live wire pin in the first plug-in space, the rear shell and the panel forming a storage space for internally installing a conversion circuit, the neutral wire pin and the live wire pin extending from the second bottom wall to ensure the plug-in length of the pin.

[0008] The rear shell further comprises a mounting plate, wherein the mounting plate is provided with a mounting structure of the conversion circuit in the accommodation space, and the neutral wire pin and the live wire pin are electrically connected to the conversion circuit through the second bottom wall.

[0009] The conversion circuit includes at least one of an AC output circuit, an AC output control circuit, an AC to DC circuit, an AC to wireless power output circuit, and a low-voltage power circuit.

[0010] When the conversion circuit is provided with an AC output circuit, the panel is provided with at least a live wire socket and a neutral wire socket, and the AC output circuit comprises at least a neutral wire output reed and a live wire output reed mounted on the mounting structure.

[0011] In order to comply with safety regulations, the mounting plate is provided with a safety door mechanism at the position of the live wire output reed. The safety door mechanism includes a safety door plate slidingly arranged on the mounting plate. An inclined push door is provided on the safety door plate. The inclined push door is aligned with the live wire output reed and the live wire socket. The safety door plate is provided with a spring.

[0012] In one embodiment, the rear shell further includes a safety door mechanism disposed between the panel and the rear shell, the safety door mechanism including an inclined push door and a return spring, the inclined push door being aligned with the position of the live wire output reed and the live wire socket.

[0013] In another embodiment, the panel further includes a safety door mechanism disposed between the panel and the rear shell, the safety door mechanism including an inclined push door and a return spring, the inclined push door being aligned with the position of the live wire output reed and the live wire socket.

[0014] In the three-pin embodiment, the power plug end further includes a ground pin, which is electrically connected to the conversion circuit. The AC output circuit further includes a ground output reed, and the surface cover further includes a ground socket.

[0015] In other embodiments of the ground pin, the power plug end further includes a ground contact spring, which is an outwardly protruding grounding piece protruding from the first bottom wall, or a metal spring, or an inwardly recessed grounding piece.

[0016] In the intelligent output control embodiment, the rear shell also includes a third bottom wall, which is retracted toward the panel to form a second plug-in space and a control plug-in end whose height is lower than that of the first bottom wall. The control plug-in end is provided with at least one live wire pin or live wire connector connected to the conversion circuit. Each live wire pin or live wire connector is connected to the conversion circuit through a relay. The at least one live wire pin or live wire connector extends from the third bottom wall to ensure the plug-in length of the pin.

[0017] The control plug end comprises a bottom step, a middle step and a top step, and the at least one live wire pin or live wire connector extends from one of the bottom step, the middle step and the top step.

[0018] In the quick-release structure design, a quick-release locking mechanism is provided on the top and / or bottom of the panel. The quick-release locking mechanism includes a lock seat, a locking spring and an operating member. The lock seat is provided with a pair of guide posts and a positioning protrusion. The operating member includes a pressing portion, a pair of guide holes, a spring hole and a pair of hooks. The operating member is slidably supported on the lock seat through the guide holes and the guide posts. The locking spring is supported on the positioning protrusion of the lock seat and extends into the spring hole to elastically support the operating member.

[0019] The panel converter of the present application can be quickly and conveniently plugged into the adapter box through the quick-release structure set at the upper and lower positions of the panel, and is connected to the mains power line in an optimal spatial arrangement in combination with the adapter box. After the panel converter is snapped onto the adapter box, the panel converter and the adapter box are completely stored in the standard wall wiring base box, leaving enough space for winding wires. After installation, the panel converter and the adapter box can be completely embedded in the wall, making the wall smooth and beautiful. At the same time, the panel converter uses different conversion circuits to support various intelligent application controls, Internet of Things controls, and remote controls in a minimal volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] in:

[0022] FIG1 is a schematic diagram of the front view and side view structure of the spatially dislocated panel converter of this embodiment;

[0023] FIG2 is a structural diagram of a rear housing of a first embodiment of the panel converter of this embodiment;

[0024] FIG3 is a schematic diagram of the internal structure of the first embodiment shown in FIG2 ;

[0025] FIG4 is a schematic diagram of the panel structure of the first embodiment shown in FIG2 ;

[0026] FIG5 is a schematic diagram of the exploded structure of the socket panel of the second embodiment of the panel converter of this embodiment;

[0027] FIG6 is a schematic diagram of the quick-insert structure of the embodiment shown in FIG5 ;

[0028] FIG7 is a rear structural diagram of a third embodiment of the panel converter of this embodiment;

[0029] FIG8 is a structural diagram of a middle frame electrical box with a second ground wire structure that is plugged into a panel converter according to this embodiment;

[0030] FIG9 is a structural diagram of a middle frame electrical box with a third ground wire structure that is plugged into a panel converter according to this embodiment;

[0031] FIG10 is a structural diagram of a middle frame electrical box having a first ground wire structure that is plugged into and mated with a panel converter according to this embodiment;

[0032] FIG11 is a schematic diagram showing the spatial relationship between the panel converter and the middle frame electrical box after being fastened together in this embodiment. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] Please refer to FIG. 10 , which is a schematic structural diagram of the switching box engaged with the panel converter of this embodiment.

[0035] Please refer to FIG. 11 . Since most of the structure is blocked by the adapter box, the structure shown by the dotted line in FIG. 11 is the panel converter of this embodiment.

[0036] The adapter box includes a frame 9 and an adapter module 92. The bottom and four side walls of the frame 9 are designed to accommodate an 86-type dark or visible junction box, such as the 86-type dark junction box 100. A winding space S is reserved at the bottom of the 86-type junction box 100. The frame 9 is essentially flush with the top of the 86-type junction box 100. This ensures that, after the frame and the mounted panel converter are installed in the junction box 100, they remain essentially flush with the wall, just like a regular outlet.

[0037] As shown in FIG1 , the panel converter of this embodiment includes a rear housing 5 and a panel 1 .

[0038] The rear housing includes a bottom wall 50 and surrounding sidewalls. The bottom wall 50 comprises a first bottom wall 501 and a second bottom wall 502. The second bottom wall 502 is recessed toward the panel 1 to form a first plugging space P1 and a power plug 51, which is lower than the first bottom wall 501 relative to the panel 1 (i.e., the height of the panel 1 from the bottom wall and the height of the panel 1 relative to the power plug 51). The power plug 51 houses at least a neutral pin and a live pin within the first plugging space P1. The rear housing 5 and the panel 1 define a housing space P2 for the conversion circuit. The neutral and live pins extend through the rear housing 5 to electrically connect to the conversion circuit. The neutral and live pins extend from the second bottom wall 502 to ensure adequate plug-in length. In the embodiment shown in FIG1 , the power plug 51 is provided with a neutral pin 551, a ground pin 552, and a live pin 553.

[0039] In terms of space utilization of the first plug-in space, the panel 1 includes a mounting plate 12 and a face cover 11. The mounting plate 12 is fixed behind the face cover 11 or mounted on the rear shell 5. The bottom wall 50 of the rear shell 5 can be divided into multiple module areas within the horizontal plane range. In the embodiment shown in Figure 1, four module areas A1-A4 are set. In the embodiment shown in Figure 2, the second bottom wall 502 belongs to the second module area A2, and the remaining module areas A1, A3 and A4 are flat as a whole. When the panel expands its functions, different module structures can be set in other module areas, such as the control plug terminal 52 in subsequent embodiments. The power plug terminal 51 is formed within the second module area A2 and includes a bottom step 511, a middle step 512 and a top step 513. Among them, the neutral wire pin 551, the ground wire pin 552 and the live wire pin 553 extend from the bottom step 511. Setting the pins from the bottom step closest to the panel can fully extend the length of the pins, leaving enough space for the neutral wire pin 551, the ground wire pin 552 and the live wire pin 553 to be plugged in.

[0040] In the embodiment shown in FIG1 , in order to adapt to the 86-walled box arrangement of the building line row, the length D2 of the panel 1 of the panel converter is within the range of 88 mm and the width D3 is within the range of 88 mm.

[0041] The bottom of the rear housing 5 is provided with multiple module areas within a horizontal plane, i.e., within a plane formed by the X-axis and the Y-axis. In the embodiment shown in FIG1 , four module areas A1-A4 are provided. It is understood that two, three, or five module areas may also be provided. A single module area does not exceed one-half of the area of ​​the rear housing.

[0042] In the embodiment shown in FIG1 , in the internal space of the rear shell 5, except for the second module area A2 where the power plug 51 is provided on the bottom wall 50, the remaining module areas, such as the internal space of the combined module area 54 corresponding to A1, A3 and A4 in the rear shell, form a storage space for installing the conversion circuit. The conversion circuit may include at least one of an AC output circuit, an AC output control circuit, an AC-to-DC circuit, an AC-to-wireless power output, and a low-voltage power circuit, depending on the different functions of the panel. Correspondingly, the panel 1 may be a smart panel or a DC panel, such as a scene switch panel, a multi-port USB fast charging panel, a smart socket panel, or a smart switch panel, depending on the different conversion circuits used.

[0043] The embodiment shown in FIG3 and FIG4 is a smart socket panel, on which a three-hole socket B, a two-hole socket A and a switch module C are provided on the cover 11 of the smart socket panel.

[0044] The embodiment shown in Figure 5 is a multi-port USB fast charging panel. A plurality of USB interfaces or Type-C interfaces connected to the AC-DC conversion circuit are provided on the cover 11 of the multi-port USB fast charging panel. A two-hole socket A can also be provided, or in other embodiments, a three-hole socket can be changed or added.

[0045] In the embodiment shown in FIG. 5 , the rear shell 5 is provided with a first pin hole 5111 , a second pin hole 5112 and a third pin hole 5113 on the bottom step 511 of the power plug end in the first plug space.

[0046] As shown in Figure 10, the power plug end 51 of the panel 1 matches the adapter module 92 of the adapter box. The adapter module 92 also includes a bottom step, a middle step, and a top step with matching structures. In order to ensure stable insertion and maintain electrical connection, the panel socket of the adapter box is set on the top step at the highest position. The top step of the adapter box is close to the bottom step 511 of the panel 1 so that they are close enough to each other to establish an electrical connection. When plugging in, the neutral wire pin 551, the ground wire pin 552, and the live wire pin 553 of the panel 1, or in an embodiment where a ground wire is not provided, the neutral wire pin 551 and the live wire pin 553 need to be plugged into the corresponding sockets in the electrical box. The panel plug end of the plug-in electrical box 9 needs to be raised so that it is close enough to the pins on the most recessed bottom step 511 of the panel 1 to establish an electrical connection. The pins of the panel 1, such as pin 551, are led out from the conversion circuit board 3, which is generally fixed on the panel 1. The height of the top step of the adapter box 9 needs to be sufficiently close to the pins 551-553 of the panel to ensure a fully stable electrical connection.

[0047] In the smart socket panel embodiment shown in Figures 3 and 4 , the mounting plate 12 of the rear housing 5 further includes mounting structures for the conversion circuit, such as the pin mounting assembly 125 and fixing studs, within the accommodation space P2. The neutral pin 551 and the live pin 553 pass through the first and third pin holes 5111, 5113 of the second bottom wall 502 to electrically connect to the conversion circuit 3.

[0048] The conversion circuitry housed in the accommodation space P2 of the rear housing 5 includes an AC power output circuit. Based on power requirements, a three-hole socket B, a two-hole socket A, and a switch module C are provided, electrically connected to the conversion circuit board 3. The mounting plate 12 defines windows for the three-hole socket, two-hole socket, and a switch window, such as switch window 23. The cover 11 defines a set of neutral, ground, and live wire sockets corresponding to the three-hole socket B. The cover 11 also defines a set of neutral and live wire sockets corresponding to the two-hole socket A, such as neutral socket 116 and live socket 117.

[0049] In the smart socket panel embodiment shown in Figures 3 and 4 , the AC output circuit connects the neutral output reed, the ground output reed, and the live output reed mounted on the mounting structure. This AC output circuit connects the neutral output reed and the live output reed of two-hole socket A, such as neutral output reed 341 and live output reed 342.

[0050] In order to comply with safety regulations, the mounting plate 12 on one side of the cover 11 is provided with a safety door mechanism at the position of each live wire output reed. For example, a first safety door mechanism is provided on the three-hole socket window corresponding to the live wire output reed of the three-hole socket B, and a second safety door mechanism is provided on the two-hole socket window corresponding to the live wire output reed of the two-hole socket A.

[0051] Each safety door mechanism is mounted on a mounting plate 12 and changes position depending on the mounting plate's location. When the mounting plate 12 is secured behind the front cover 11, the safety door mechanism is also secured between the front cover 11 and the mounting plate. When the mounting plate 12 is secured to the rear housing 5, the safety door mechanism is mounted on the mounting plate 12.

[0052] The first safety door mechanism includes a safety door plate 25 slidably mounted on the three-hole socket window of the mounting plate 12. The safety door plate 25 includes a tilted push door 26 aligned with the live wire output spring and the live wire socket on the front cover. The first safety door plate is provided with a return spring to provide a restoring force. The second safety door mechanism includes a safety door plate 21 slidably mounted on the two-hole socket window of the mounting plate 12. The safety door plate 21 includes a tilted push door 22 aligned with the live wire output spring and the live wire socket on the front cover. The first safety door plate is provided with a return spring (not shown) to provide a restoring force.

[0053] In the smart socket panel embodiment shown in Figure 3, the ground pin is not required. It is only required for high-power terminal appliances, such as two-hole socket A, which does not require a ground structure. Furthermore, in the multi-port USB fast charging panel embodiment shown in Figure 5, a ground pin is also not required.

[0054] In a high-power scenario using a three-pin embodiment, the power plug end 51 can be additionally provided with a ground pin. The ground pin is electrically connected to the conversion circuit. In this case, the AC output circuit also includes a ground output reed, and the cover 11 also has a ground socket.

[0055] At the power input terminal, the grounding structure is not limited to the grounding pin shown in FIG. 2 or FIG. 3 . In other embodiments of the grounding pin, the power input terminal further includes a grounding contact spring. The grounding contact spring is an outwardly projecting grounding member, a metal spring, or an inwardly recessed grounding member extending from the bottom wall 50 .

[0056] FIG8 shows a diagram of a separate grounding structure for the plug-in terminal of the adapter box that matches the panel. In the embodiment in which a separate ground wire is provided, the power plug-in terminal 51 no longer has a ground wire pin 552 provided on the bottom step 511 of the second bottom wall 502 of the rear shell 5. Instead, a separate ground wire interface is provided on the bottom step 511. Correspondingly, the adapter box 9' that matches the panel also has a separate convex grounding piece 2135' as shown in FIG8 at the bottom. The adapter module of the adapter box 9' only has a live wire socket 2136' and a neutral wire socket 2137'. The panel's convex grounding piece structure is the same as that of the panel.

[0057] Please refer to Figure 9, which shows another grounding structure diagram of the plug-in end of the adapter box that cooperates with the panel. The ground contact spring of the adapter box 9" can be the spring-type spring 2135" shown in Figure 9. In this case, the adapter module is provided with a live wire socket 2136" and a neutral wire socket 2137". The ground contact spring can also be a recessed grounding piece. The metal spring of the panel or the recessed grounding piece has the same structure.

[0058] Please refer to Figure 7. In the intelligent output control embodiment, the rear shell 5 also includes a third bottom wall 503, which is retracted inward toward the panel 1 to form a second plug-in space P3 and a control plug-in end 52 whose height relative to the panel 1 is lower than the height of the first bottom wall 501.

[0059] At least one live pin or live connector is provided in the second plug-in space of the control plug-in terminal 52. In the embodiment shown in FIG7 , three live pins are provided, such as live pin 561. Each live pin or live connector is connected to a conversion circuit via a relay. The live pin or live connector extends from the third bottom wall 503 to ensure the pin's plug-in length.

[0060] The structure of the control plug-in terminal 52 is the same as that of the power plug-in terminal 51 and they are symmetrically arranged.

[0061] Referring to Figure 1 , in this embodiment, the control plug end 52 includes a bottom step 521, a middle step 522, and a top step 523. The top step 513 of the power plug end 51 is coplanar with the top step 523 of the control plug end 52. Three live wire pins or live wire connectors extend from one of the bottom step, the middle step, or the top step.

[0062] As shown in Figure 6 , in the quick-release design of the panel 1 and the adapter box 9, quick-release locking mechanisms are provided on the top and / or bottom of the panel. Specifically, quick-release locking mechanisms are provided in pairs at the top and bottom of the panel. For example, in the embodiment shown in Figure 3 , the panel includes a top quick-release locking mechanism 72 and a bottom quick-release locking mechanism 75. Alternatively, a quick-release locking mechanism may be provided on only the top or bottom.

[0063] Taking the top quick-release locking mechanism 72 as an example, the quick-release locking mechanism includes a lock seat 71 , a locking spring 73 and an operating member 72 .

[0064] The cover 11 includes a pair of fixing posts, a first fixing post 113 and a second fixing post 114. The lock base 71 defines a pair of mounting holes 711-712, a pair of guide posts 713-714, and a positioning protrusion 715. The operating member 72 includes a pressing portion 721, a pair of guide holes 726-727, a spring hole 725, and a pair of hooks 723.

[0065] The first and second fixing posts 113 and 114 of the face cover 11 are inserted into the corresponding mounting holes 711-712 of the lock base 71, securing the lock base 71 to the face cover. The guide holes of the operating member 72 are inserted into the pair of guide posts 713-714 of the lock base 71, thereby providing sliding support on the lock base 71. The locking spring 73 is supported on the positioning protrusion 715 of the lock base 71 and extends into the spring hole 725 of the operating member 72 to elastically support the operating member 72. The dual guide holes and elastic support structure of the quick-release locking mechanism ensure a more secure and smooth connection between the panel and the adapter box.

[0066] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A panel converter, characterized in that: It includes a rear shell and a panel, the rear shell includes a bottom wall and side walls, the bottom wall includes a first bottom wall and a second bottom wall, the second bottom wall is retracted toward the panel to form a first plug-in space and a power plug end whose height is lower than the first bottom wall, the power plug end is provided with at least a neutral wire pin and a live wire pin, the rear shell and the panel form an accommodating space for installing the conversion circuit inside, the neutral wire pin and the live wire pin extend from the second bottom wall to ensure the plug-in length of the pin.

2. The panel converter according to claim 1, characterized in that: The rear shell further includes a mounting plate, and a mounting structure of the conversion circuit is arranged on the mounting plate in the accommodating space. The neutral wire pin and the live wire pin pass through the second bottom wall and are electrically connected to the conversion circuit.

3. The panel converter according to claim 2, characterized in that: The conversion circuit includes at least one of an AC output circuit, an AC output control circuit, an AC to DC circuit, an AC to wireless power output circuit, and a low-voltage power circuit.

4. The panel converter according to claim 3, characterized in that: When the conversion circuit is an AC output circuit, at least a live wire socket and a neutral wire socket are provided on the panel, and the AC output circuit at least includes a neutral wire output reed and a live wire output reed installed on the mounting structure.

5. The panel converter according to claim 4, characterized in that: The rear shell further comprises a safety door mechanism provided between the panel and the rear shell, wherein the safety door mechanism comprises an inclined push door and a return spring, wherein the inclined push door is aligned with the position of the live wire output reed and the live wire socket.

6. The panel converter according to claim 4, characterized in that: The panel also includes a safety door mechanism arranged between the panel and the rear shell, the safety door mechanism includes an inclined push door and a return spring, and the inclined push door is aligned with the position of the live wire output reed and the live wire socket.

7. The panel converter according to claim 4, characterized in that: The power plug end further includes a ground pin, which is electrically connected to the conversion circuit. The AC output circuit further includes a ground output reed, and a ground socket is further provided on the surface cover.

8. The panel converter according to claim 4, characterized in that: The power plug terminal further includes a ground contact spring, which is an outwardly protruding grounding piece protruding from the first bottom wall, or a metal spring, or an inwardly recessed grounding piece.

9. The panel converter according to claim 2, characterized in that: The rear shell also includes a third bottom wall, which is retracted toward the panel to form a second plug-in space and a control plug-in end whose height is lower than that of the first bottom wall. The control plug-in end is provided with at least one live wire pin or live wire connector connected to the conversion circuit. Each live wire pin or live wire connector is connected to the conversion circuit through a relay. The at least one live wire pin or live wire connector extends from the third bottom wall to ensure the plug-in length of the pin.

10. The panel converter according to claim 1, characterized in that A quick-release locking mechanism is provided at the top and / or bottom of the panel, and the quick-release locking mechanism includes a lock seat, a locking spring and an operating member. The lock seat is provided with a pair of guide posts and a positioning protrusion, and the operating member includes a pressing portion, a pair of guide holes, a spring hole and a pair of hooks. The operating member is slidably supported on the lock seat through the guide holes and the guide posts. The locking spring is supported on the positioning protrusion of the lock seat and extends into the spring hole to elastically support the operating member.

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