Power supply box with rotatable flip cover

Abstract

The utility model provides a rotatable flip power supply box, which comprises a seat body, a first cover body, a partition piece and a second cover body, the seat body is provided with a containing groove formed by connecting a first side wall and a second side wall through a bottom wall, one end of the first cover body is rotatably connected to the seat body, so that the power supply box has an open state and a closed state, and when the power supply box is in the closed state, the partition piece is separated from the first cover body. The first cover body covers the containing groove, the partition piece is arranged on the bottom wall in a protruding mode and abuts against the first side wall, so that the containing groove is divided into a first groove area and a second groove area, the base body is provided with a wiring hole corresponding to the second groove area, the partition piece is provided with a wire passing hole communicated with the first groove area and the second groove area, one end of the second cover body is rotatably connected to the base body, and the other end of the second cover body is rotatably connected to the base body. In the closed state, the second cover body is located on the side, opposite to the bottom wall, of the first cover body so as to cover the first groove area, and the rotating end of the second cover body and the rotating end of the first cover body are adjacent to the same second side wall. The power supply box provided by the utility model is beneficial to improving the use convenience and preventing the cover body from being lost in the disassembly and assembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of power boxes, and particularly relates to a power box with a rotatable flip cover. Background Art

[0002] For the existing power box, the base is usually detachably connected to the outer cover and the inner cover by means of snap fit. On the one hand, it is easy to lose the cover during maintenance. On the other hand, the opening and closing steps of the power box are relatively cumbersome, which is not conducive to improving the convenience of use. In addition, the inner cover is usually used to cover the power cavity, and the power cavity is usually filled with silica gel for heat dissipation and waterproofing. When the inner cover plate is installed by means of snap fit, once the snap fit is misaligned, the inner cover plate will stick to the colloid, which will cause pollution of the cover on the one hand and inconvenience for subsequent operations on the other hand. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a power box that is conducive to improving the convenience of use and preventing the loss of the cover during disassembly and assembly.

[0004] To solve the above problems, the technical solutions adopted by the utility model are as follows:

[0005] A power box with a rotatable flip cover, the power box includes a base body and a first cover body. The base body has a receiving groove formed by a bottom wall connecting two first side walls arranged opposite to each other and two second side walls arranged opposite to each other. One end of the first cover body is rotatably connected to the base body, so that the power box has an open state and a closed state. In the closed state, the first cover body covers the receiving groove. The power box further includes:

[0006] A spacer, protruding from the bottom wall and abutting against the first side wall, so that the receiving groove is partitioned into a first groove area and a second groove area. The first groove area is used as a power cavity, and the second groove area is used as a wiring cavity. The base body is provided with a wiring hole corresponding to the second groove area, and the spacer is provided with a wire passing hole communicating the first groove area and the second groove area; and

[0007] A second cover body, one end of the second cover body is rotatably connected to the base body. In the closed state, the second cover body is located on the side of the first cover body relative to the bottom wall to cover the first groove area, and the rotating end of the second cover body and the rotating end of the first cover body are arranged adjacent to the same second side wall.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] In the present application, the first cover and the second cover are both rotatably connected to the base. Therefore, the power supply box can be switched between the closed state and the open state by rotating the first cover, without repeatedly disassembling and assembling the first cover. This not only facilitates the improvement of the usability but also helps to avoid the loss of the first cover. By rotating the second cover, the first groove area can be exposed or covered, without repeatedly disassembling and assembling the second cover, which further improves the usability and prevents the loss of the cover. Therefore, the power supply box provided in the present application is conducive to improving the usability and preventing the loss of the cover during the disassembly and assembly process.

[0010] The following further describes the present invention in detail with reference to the drawings and specific embodiments. Description of the Drawings

[0011] Figure 1 Schematic structural diagram of the power supply box provided by an embodiment of the present application;

[0012] Figure 2 is Figure 1 Sectional view along V-V;

[0013] Figure 3 is Figure 1 Sectional view along VI-VI;

[0014] Figure 4 is Figure 2 Enlarged view of part A shown;

[0015] Figure 5 is Figure 2 Enlarged view of part B shown;

[0016] Figure 6 is Figure 1 Schematic diagram of the partial structure of the power supply box shown;

[0017] Figure 7 is Figure 1 Schematic structural diagram of the first cover shown;

[0018] Figure 8 is Figure 2 Schematic structural diagram of the second cover shown;

[0019] Figure 9 Partial view of the rotational connection manner between the first cover, the second cover and the second side wall corresponding to the power supply box of another embodiment of the present application.

[0020] Explanation of the reference numerals in the drawings:

[0021] 100 - Power supply box; 10 - Base body; 11 - Bottom wall; 12 - First side wall; 13 - Second side wall; 131 - First boss; 132 - First rotating groove; 133 - Second rotating groove; 101 - Accommodating groove; 1011 - First groove area; 1012 - Second groove area; 102 - Mounting through hole; 20 - First cover; 21 - First cover part; 22 - Second cover part; 202 - First groove; 23 - Third boss; 201 - First clamping groove; 2011 - First side opening; 231 - Third clamping groove; 30 - First rotating shaft; 40 - First spacer; 41 - Body; 42 - Cable protection sleeve; 421 - First sleeve body; 422 - Second sleeve body; 401 - Cable passing hole; 402 - Fifth clamping groove; 410 - Second boss; 50 - Second cover; 51 - Third cover part; 52 - Fourth cover part; 53 - Fourth boss; 501 - Second clamping groove; 521 - Fourth clamping groove; 5011 - Second side opening; 60 - Circuit board; 70 - Adjustment module; 80 - Second rotating shaft; 90 - Second spacer; 91 - Positioning part, 92 - Waterproof pad. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] The terms "first", "second", etc. in the specification and claims of the present application and the above accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can also be an intermediate element. When an element is referred to as being "disposed on" another element, it can be disposed on the other element or there can also be an intermediate element.

[0024] Embodiment 1:

[0025] Refer to Figures 1 to 3 , an embodiment of the present application provides a power supply box with a rotatable flip cover, hereinafter simply referred to as the power supply box 100. The power supply box 100 includes a base body 10, a first cover 20, a first spacer 40, and a second cover 50.

[0026] The base body 10 has a receiving groove 101 formed by two first side walls 12 arranged oppositely and two second side walls 13 arranged oppositely, which are connected by a bottom wall 11. Exemplarily, the bottom wall 11, the first side walls 12 and the second side walls 13 can be connected by integral molding or screw fixation. One end of the first cover body 20 is rotatably connected to the base body 10, so that the power supply box 100 has an open state and a closed state. Specifically, when the first cover body 20 rotates away from the bottom wall 11, the power supply box 100 is in the open state, so that the receiving groove 101 can be exposed. When the first cover body 20 rotates in the opposite direction, the power supply box 100 is in the closed state. In the closed state, the first cover body 20 covers the receiving groove 101.

[0027] The first partition 40 protrudes from the bottom wall 11 and abuts against the first side wall 12, so that the receiving groove 101 is partitioned into a first groove area 1011 and a second groove area 1012. The first groove area 1011 is used as a power supply cavity. Exemplarily, the first groove area 1011 is used to install a circuit board structure. The second groove area 1012 is used as a wiring cavity. Exemplarily, the second groove area 1012 can be used to accommodate wiring. Exemplarily, the first partition 40 can be connected to at least one of the bottom wall 11 and the first side wall 12. The first partition 40 is provided with a wire passing hole 401 communicating the first groove area 1011 and the second groove area 1012. The base body 10 is provided with a wiring hole 121 corresponding to the second groove area 1012. Exemplarily, the wiring hole 121 can be provided on at least one of the bottom wall 11, the first side wall 12 and the second side wall 13. Exemplarily, the wiring hole 121 can be a knockout hole or an opening. One end of the second cover body 50 is rotatably connected to the base body 10. In the closed state, the second cover body 50 is located on the side of the first cover body 20 opposite to the bottom wall 11 to cover the first groove area 1011. The rotating end of the second cover body 50 and the rotating end of the first cover body 20 are arranged adjacent to the same second side wall 13.

[0028] In the present application, both the first cover body 20 and the second cover body 50 are rotatably connected to the base body 10. Therefore, the power supply box 100 can realize the conversion between the closed state and the open state by rotating the first cover body 20, without repeatedly disassembling and assembling the first cover body 20. Thus, it is beneficial to improve the use convenience and avoid losing the first cover body 20. By rotating the second cover body 50, the first groove area 1011 can be exposed or covered, without repeatedly disassembling and assembling the second cover body 50. Thus, it is beneficial to further improve the use convenience and avoid losing the cover body. Therefore, the power supply box 100 provided in the present application is beneficial to improve the use convenience and prevent the cover body from being lost during the disassembly and assembly process.

[0029] In some embodiments, the power box 100 further includes two first rotating shafts 30 disposed opposite to each other, each first rotating shaft 30 being protruded from one first side wall 12 toward the other first side wall 12. For example, the first rotating shaft 30 can be fixed by through-hole installation, integral molding, welding or bonding. The rotating end of the first cover 20 has a first card slot 201, and the first card slot 201 has two first side openings 2011 disposed opposite to each other (combined with reference to Figure 7 ), each first rotating shaft 30 extends from the first side opening 2011 into the first card slot 201, and the first rotating shaft 30 can be limitedly moved in and out of the notch of the first card slot 201.

[0030] The first rotating shaft 30 can be inserted into or removed from the slot through the slot opening of the first locking slot 201, so as to realize quick disassembly and assembly of the first cover body 20. In addition, since the slot has a limiting effect on the first rotating shaft 30, the first cover body 20 will not be separated from the first rotating shaft 30 during the rotation process. In addition, the first cover body 20 is rotatably connected to the base body 10 by means of the slot and the rotating shaft, which facilitates the disassembly and assembly of the first cover body 20.

[0031] In some embodiments, reference Figure 2 , Figure 6 and Figure 7 The power box 100 further includes two second rotating shafts 80 disposed opposite to each other. Each second rotating shaft 80 is protruded from one first side wall 12 toward the other first side wall 12, and the second rotating shaft 80 is disposed on the side of the first rotating shaft 30 away from the bottom wall 11. The rotating end of the first cover 20 is bent to form a first groove 202, and the rotating end of the second cover 50 has a second card slot 501. Figure 8 The second slot 501 has two second side openings 5011 that are arranged in opposite directions. Each second shaft 80 extends into the second slot 501 from the second side opening 5011, and the second shaft 80 can be limitedly moved in and out of the notch of the second slot 501. The rotatable connection of the second cover 50 by means of the shaft and the slot is conducive to improving the convenience of disassembly and assembly. In addition, the position of the first shaft 30 is coordinated with the structure of the first cover 20, which is conducive to ensuring that the first cover 20 has a larger rotatable angle, and is also conducive to improving the sealing of the power box 100.

[0032] In another embodiment, the second cover body 50 and the first cover body 20 can be rotatably connected via a hinge structure.

[0033] In some embodiments, reference Figure 2 , Figure 4 , Figure 6 and Figure 7, the first cover body 20 includes a first cover portion 21 and a second cover portion 22. The first cover portion 21 is used to cover the accommodating groove 101, and one end of the first cover portion 21 is rotatably connected to the base body 10. The second cover portion 22 is connected to the other end of the first cover portion 21 to form an angular structure, and the second cover portion 22 is provided with a third card slot 231.

[0034] At the top of the second side wall 13 away from the rotating end of the first cover body 20, there is a first boss 131. In the closed state, the first boss 131 is fixed in the third card slot 231, and the first boss 131 can be detached from the third card slot 231, that is, there is a detachable snap fit between the first boss 131 and the third card slot 231. The cooperation of the third card slot 231 and the first boss 131 is conducive to improving the connection stability between the first cover body 20 and the base body 10.

[0035] In some embodiments, referring to Figure 2 , Figure 3 , Figure 5 and Figure 8 , the second cover body 50 includes a third cover portion 51 and a fourth cover portion 52. The third cover portion 51 is rotatably connected to the base body 10. In the closed state, the third cover portion 51 covers the first groove area 1011. The fourth cover portion 52 protrudes from one end of the third cover portion 51 to form an angular structure. In the closed state, the fourth cover portion 52 is arranged in the second groove area 1012. The end face of the fourth cover portion 52 is recessed relative to the first spacer 40 to form a fourth card slot 521. The top of the first spacer 40 protrudes with a second boss 410 located in the second groove area 1012. In the closed state, the second boss 410 is fixed in the fourth card slot 521, and the second boss 410 can be detached from the fourth card slot 521. Similarly, the cooperation of the fourth card slot 521 and the second boss 410 is conducive to improving the connection stability of the second cover body 50.

[0036] In some embodiments, referring to Figure 2 , Figure 3 and Figure 6 , the power supply box 100 further includes a circuit board 60 and an adjustment module 70. The circuit board 60 is arranged in the first groove area 1011. Exemplarily, the circuit board 60 can be fixed by screws. The adjustment module 70 is installed on the second cover body 50 and electrically connected to the circuit board 60. Exemplarily, the adjustment module 70 can be used to adjust at least one of the current and voltage. In the closed state, the adjustment module 70 is placed in the first groove area 1011, and the adjustment key of the adjustment module 70 is exposed on the side of the second cover body 50 away from the first groove area 1011. Exemplarily, the adjustment key can pass through the second cover body 50 to achieve the exposure effect. Specifically, the wiring can be sequentially connected to the circuit board 60 through the wiring hole 121, the wire passing hole 401 into the second groove area 1012. The cooperation of the above components facilitates the maintenance and disassembly of the circuit board 60 and the adjustment module 70.

[0037] In some embodiments, referring toFigure 3 and Figure 6 The first spacer 40 includes a body 41 and a wire protection sleeve 42. The body 41 protrudes from the bottom wall 11 and abuts against the first side wall 12. The end face of the body 41 facing away from the bottom wall 11 is recessed to form a fifth card slot 402, and the fifth card slot 402 communicates with the first slot area 1011 and the second slot area 1012. The wire protection sleeve 42 includes a first sleeve body 421 and two second sleeve bodies 422. The first sleeve body 421 is connected between the two second sleeve bodies 422. The first sleeve body 421 is fixed in the fifth card slot 402. The first sleeve body 421 is provided with a wire passing hole 401. The second sleeve body 422 abuts against the edge of the fifth card slot 402. It can be understood that the adjacent three ends of the second sleeve body 422 protrude from the corresponding three ends of the first sleeve body 421. The wire protection sleeve 42 is detachably clamped on the body 41, so as to facilitate replacing the wire protection sleeve 42 as needed to improve the use adaptability. Exemplarily, different sizes of wire passing holes 401 can be replaced according to the wiring size.

[0038] In some embodiments, referring to Figure 2 、 Figure 3 and Figure 6 The power supply box 100 further includes two positioning components. Each positioning component protrudes from a first side wall 12 towards the other first side wall 12. The positioning component includes at least two positioning members 91. When observed along the arrangement direction of the two second side walls 13, the adjacent two positioning members 91 of the positioning component and the adjacent first side wall 12 jointly form a limiting groove. The first spacer 40 is fixed in the limiting groove to achieve installation. In this embodiment, the body 41 is fixed in the limiting groove. In this embodiment, the positioning component includes four positioning members 91. When observed along the arrangement direction of the two second side walls 13, the four positioning members 91 and the adjacent first side wall 12 jointly form two limiting grooves. One limiting groove is spaced between the other limiting groove and the bottom wall 11. Fixing the first spacer 40 through the positioning component facilitates disassembly and assembly.

[0039] In other embodiments, the first spacer 40 can be fixed by means of screw fixation, integral molding, bonding, or welding.

[0040] In some embodiments, referring to Figure 3 and Figure 6 The power supply box 100 further includes a second spacer 90. The second spacer 90 protrudes from the bottom wall 11 and abuts between the first spacer 40 and an adjacent second side wall 13, so that the second slot area 1012 is separated into at least two intervals. Exemplarily, the second spacer 90 can be installed by means of screw fixation, bonding, welding, or integral molding. The number of wire passing holes 401 is at least two, and each interval communicates with the first slot area 1011 through the wire passing hole 401. In this embodiment, the number of wire protection sleeves 42 is the same as the number of intervals.

[0041] In some embodiments, with reference to Figure 1 and Figure 6 , at opposite ends of the bottom wall 11, each protrudes away from the other first side wall 12 and is disposed adjacent to the first side wall 12. The protruding portion of the bottom wall 11 is provided with an installation through hole 102 for installing the power supply box 100.

[0042] In some embodiments, with reference to Figure 2 and Figure 3 , the power supply box 100 further includes a waterproof pad 92. The waterproof pad 92 is disposed on the inner surface of the first cover 20. Specifically, it can be disposed on the inner surface of the first cover portion 21. Exemplarily, the material of the waterproof pad 92 can be one of silicone, polyvinyl chloride, acrylic waterproof material, nylon, polyester, polypropylene, or acrylic fiber.

[0043] Embodiment 2:

[0044] The difference between the power supply box provided in this embodiment and the power supply box 100 provided in Embodiment 1 lies in the different rotational connection manners of the first cover 20 and the second cover 50. Specifically, with reference to Figure 2 and Figure 9 , the second side wall 13 adjacent to the rotational end of the cover body is provided with a first rotation groove 132 and a second rotation groove 133. The opening of the first rotation groove 132 faces away from the other second side wall 13, and the opening of the second rotation groove 133 faces away from the bottom wall 11. The second rotation groove 133 is located on the side of the first rotation groove 132 away from the bottom wall 11. The rotational end of the first cover 20 is bent to form a first groove 202. The bottom wall of the first groove 202 faces the second side wall 13, and the side wall of the first groove 202 away from the second rotation groove 133 can rotate within the first rotation groove 132. The rotational end of the second cover 50 is bent to form a second groove 502. The side wall of the second groove 502 close to the first rotation groove 132 can rotate within the second rotation groove 133.

[0045] The power supply box further includes a third boss 23 and a fourth boss 53. The third boss 23 protrudes away from the second rotation groove 133 and is disposed on the side wall of the first groove 202 located within the first rotation groove 132. The third boss 23 is used to limit the first cover 20 from disengaging from the first rotation groove 132. The fourth boss 53 protrudes away from the accommodation groove 101 and is disposed on the side wall of the second groove 502 located within the second rotation groove 133. The fourth boss 53 is used to limit the second cover 50 from disengaging from the second rotation groove 133. Exemplarily, the third boss 23 and the fourth boss 53 can be rotated out of the corresponding rotation grooves by a relatively large external force. Adopting the rotational manner of this embodiment is beneficial to simplifying the structure of the power supply box.

[0046] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. A power box with a rotatable flip cover, the power box comprising a base body and a first cover body, the base body having a receiving groove formed by two first side walls arranged opposite to each other and two second side walls arranged opposite to each other and connected by a bottom wall, characterized in that, One end of the first cover is rotatably connected to the base body, so that the power supply box has an open state and a closed state. In the closed state, the first cover covers the accommodating groove. The power supply box further includes: A spacer protruding from the bottom wall and abutting against the first side wall, so that the accommodating groove is partitioned into a first groove area and a second groove area. The first groove area is used as a power supply cavity, and the second groove area is used as a wiring cavity. The base body is provided with a wiring hole corresponding to the second groove area, and the spacer is provided with a wire passing hole communicating the first groove area and the second groove area; and A second cover, one end of the second cover is rotatably connected to the base body. In the closed state, the second cover is located on a side of the first cover opposite to the bottom wall to cover the first groove area. The rotating end of the second cover and the rotating end of the first cover are arranged adjacent to the same second side wall.

2. The power box with a rotatable flip cover according to claim 1, characterized in that, Further included are: Two first rotating shafts arranged oppositely, each of the first rotating shafts protruding from one of the first side walls towards the other first side wall; The rotating end of the first cover has a first card slot, the first card slot has two first side openings arranged away from each other, and each of the first rotating shafts extends into the first card slot from the first side opening, and the first rotating shaft can be limited to enter and exit from the slot opening of the first card slot.

3. The power supply box with a rotatable flip cover according to claim 2, characterized in that, Further included are: Two second rotating shafts arranged oppositely, each of the second rotating shafts protruding from one of the first side walls towards the other first side wall, and the second rotating shaft is arranged on a side of the first rotating shaft away from the bottom wall; The rotating end of the first cover is bent to form a first groove, the side wall of the first groove away from the second rotating shaft is provided with the first card slot, the rotating end of the second cover has a second card slot, the second card slot has two second side openings arranged away from each other, and each of the second rotating shafts extends into the second card slot from the second side opening, and the second rotating shaft can be limited to enter and exit from the slot opening of the second card slot.

4. The power box with a rotatable flip cover according to claim 1, characterized in that, The first cover includes: A first cover part for covering the accommodating groove, one end of the first cover part is rotatably connected to the base body; and A second cover part connected to the other end of the first cover part to form an angular structure. The second cover part is provided with a third card slot, and the top end of the second side wall away from the rotating end of the first cover is provided with a first boss. In the closed state, the first boss is fixed in the third card slot, and the first boss can be detached from the third card slot.

5. The power supply box with a rotatable flip cover according to claim 4, characterized in that, The second cover includes: A third cover part rotatably connected to the base body. In the closed state, the third cover part covers the first groove area; and A fourth cover part protruding from one end of the third cover part. In the closed state, the fourth cover part is arranged in the second groove area. The end face of the fourth cover part opposite to the spacer is recessed to form a fourth card slot, and the top end of the spacer protrudes with a second boss located in the second groove area. In the closed state, the second boss is fixed in the fourth card slot, and the second boss can be detached from the fourth card slot.

6. The power box with a rotatable flip cover according to claim 1, characterized in that, The second side wall adjacent to the rotating end of the cover body is provided with a first rotating groove and a second rotating groove. The opening of the first rotating groove is arranged away from the other second side wall, the opening of the second rotating groove is arranged away from the bottom wall, and the second rotating groove is located on the side of the first rotating groove away from the bottom wall; The rotating end of the first cover body is bent to form a first groove. The bottom wall of the first groove is arranged opposite to the second side wall. The side wall of the first groove away from the second rotating groove can rotate in the first rotating groove. The rotating end of the second cover body is bent to form a second groove. The side wall of the second groove close to the first rotating groove can rotate in the second rotating groove; The power supply box further includes: A third boss protruding from the side wall of the first groove located in the first rotating groove away from the second rotating groove. The third boss is used to limit the first cover body from separating from the first rotating groove; And A fourth boss protruding from the side wall of the second groove located in the second rotating groove away from the accommodating groove. The fourth boss is used to limit the second cover body from separating from the second rotating groove.

7. The power box with a rotatable flip cover according to claim 1, characterized in that, The spacer includes: A body protruding from the bottom wall and abutting against the first side wall. A fifth clamping groove is recessed on the end face of the body away from the bottom wall. The fifth clamping groove communicates with the first groove area and the second groove area; and A wire protection sleeve. The wire protection sleeve includes a first sleeve body and two second sleeve bodies. The first sleeve body is connected between the two second sleeve bodies. The first sleeve body is fixed in the fifth clamping groove. The first sleeve body is provided with the wire passing hole. The second sleeve body abuts against the edge of the fifth clamping groove.

8. The power box with a rotatable flip cover according to claim 1, wherein It further includes: Two positioning components. Each positioning component protrudes from one of the first side walls towards the other first side wall. The positioning component includes at least two positioning members. When observed along the arrangement direction of the two second side walls, the adjacent two positioning members of the positioning component and the adjacent first side wall jointly form a limiting groove. The spacer is fixed in the limiting groove.

9. The power box with a rotatable flip cover according to claim 1, characterized in that, It further includes: A waterproof pad arranged on the inner surface of the first cover body. In the closed state, the waterproof pad covers the accommodating groove.

10. The rotatable flip - type power box according to claim 1, wherein, It further includes: A circuit board arranged in the first groove area; And An adjustment module installed on the second cover body and electrically connected to the circuit board. In the closed state, the adjustment module is placed in the first groove area, and the adjustment key of the adjustment module is exposed on the side of the second cover body away from the first groove area.

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