Box body structure and junction box

Abstract

The invention relates to the technical field of locking devices, in particular to a box body structure and a junction box. The box body structure comprises a first main body, a second main body and a locking part, a through hole is formed in the side wall of the first main body, an elastic piece is arranged in the second main body, the locking part is detachably installed in the through hole, and one end of the locking part can abut against the elastic piece to drive the second main body to move relative to the first main body. The second main body is pressed and fixed on the first main body, and the end face of the other end of the locking part is located in the through hole. The locking part is matched with the elastic piece, the second main body is pressed and fixed to the first main body, operation is convenient and fast, mounting and dismounting are convenient, meanwhile, due to the fact that the end face of the other end of the locking part is located in the through hole, it can be guaranteed that the overall appearance consistency of the box body structure is good, and the appearance size of the box body structure cannot be increased due to the existence of the locking part; and the transportation cost can be saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of locking devices, and in particular to a box structure and a junction box. Background Art

[0002] In the related art, the box structure (such as the box of a packaging box or a junction box) usually includes a box body and a box cover, and the box cover is locked and fixed to the box body by a locking device to prevent the parts in the box body from falling. There are two main types of existing locking devices. The first type uses screws on the upper surface of the box cover to fix the box cover to the box body. Although the cost is low, the screws can be seen on the front of the product (the upper surface of the box cover), affecting the front appearance of the product; the second type uses hinges and buckles on the side to fix the box cover and the box body together. Although it does not affect the front appearance of the product, the cost is high, and the buckle can be seen from the side, which has a greater impact on the overall appearance and size.

[0003] In addition, the box structure usually needs to have a good waterproof effect. Take the junction box as an example. The junction box usually contains wiring terminals, communication modules, switches, circuit breakers and other electrical components. The junction box placed outdoors needs to reach the protection level of IP65 or even IP67. If the locking effect is not good, the waterproof performance will also be affected. Summary of the invention

[0004] The purpose of the present disclosure is to provide a box structure and a junction box to enhance locking performance and optimize the overall appearance and size of the product.

[0005] Based on the above purpose, the present disclosure provides a box structure, including:

[0006] A first body, wherein a side wall of the first body is provided with a through hole;

[0007] a second body, wherein an elastic member is disposed inside the second body; and

[0008] A locking portion, wherein the locking portion is detachably mounted on the through hole, one end of the locking portion being capable of abutting against the elastic member to drive the second body to move relative to the first body and to press and fix the second body to the first body, and the end face of the other end of the locking portion is located in the through hole.

[0009] In one embodiment of the present disclosure, the elastic member includes a spring sheet, one end of the spring sheet is connected to the second body, and the other end of the spring sheet is bent to form a guiding inclined surface;

[0010] The locking portion includes a rod-shaped structure having a first end and a second end that are oppositely disposed, and the first end of the rod-shaped structure abuts against the guide slope to drive the second body to move relative to the first body and to press and fix the second body to the first body.

[0011] In one embodiment of the present disclosure, an end surface of the second end of the rod-like structure is coplanar with an outer surface of a side wall of the first body.

[0012] In one embodiment of the present disclosure, the guiding slope extends in a direction away from the side wall of the first body.

[0013] In one embodiment of the present disclosure, the first end of the rod-like structure is provided with an inclined portion.

[0014] In one embodiment of the present disclosure, the inclined portion is a chamfered surface, and the inclination angle of the chamfered surface is equal to the inclination angle of the guide surface.

[0015] In one embodiment of the present disclosure, the spring sheet includes a lateral portion, a vertical portion, and a bending portion that are integrally formed, the bending portion includes an inclined section, and a surface of the inclined section away from the vertical portion is the guiding slope.

[0016] In one embodiment of the present disclosure, the bending portion further includes a transition section, one end of the transition section is connected to the vertical portion, and the other end of the transition section is connected to the inclined section.

[0017] In one embodiment of the present disclosure, the transition section is perpendicular to the vertical portion.

[0018] In one embodiment of the present disclosure, a horizontal extension section is provided at the free end of the inclined section, and a surface of the horizontal extension section close to the transverse portion abuts against a circumferential surface of the rod-like structure.

[0019] In one embodiment of the present disclosure, the vertical portion is provided with a positioning hole, and the positioning hole is used for the first end of the rod-like structure to pass through.

[0020] In one embodiment of the present disclosure, a disassembly fitting portion is provided at the second end of the rod-like structure, and the disassembly fitting portion is used to separate the rod-like structure from the first body.

[0021] In one embodiment of the present disclosure, the guide slope is provided with a lubricating layer, and the inclined portion can be in contact with the lubricating layer.

[0022] In one embodiment of the present disclosure, the rod-shaped structure is provided with an external thread; and the through hole is provided with an internal thread matching the external thread.

[0023] In one embodiment of the present disclosure, the rod-like structure includes a first rod segment and a second rod segment, the second rod segment is connected to an end of the first rod segment away from the elastic member, the free end of the first rod segment is the first end of the rod-like structure, and the free end of the second rod segment is the second end of the rod-like structure; the circumferential surface of the first rod segment is a smooth surface, and the external thread is arranged on the second rod segment.

[0024] In one embodiment of the present disclosure, the second rod segment is provided with a bolt head, and the outer surface of the side wall of the first body is provided with a recessed portion for accommodating the bolt head.

[0025] In one embodiment of the present disclosure, a disassembly fitting portion is provided at the second end of the rod-like structure, and the disassembly fitting portion is a groove provided on the bolt head.

[0026] In one embodiment of the present disclosure, the first rod segment and the second rod segment are integrally formed.

[0027] In one embodiment of the present disclosure, the circumferential surface of the rod-shaped structure is a smooth surface.

[0028] In one embodiment of the present disclosure, the first end of the rod-shaped structure is connected to the elastic sheet via a magnetic attraction structure.

[0029] In one embodiment of the present disclosure, the end surface of the second end of the rod-like structure is provided with two inner recesses, and a spacer is formed between the two inner recesses; or, the end surface of the second end of the rod-like structure is provided with two inner recesses, and a spacer is formed between the two inner recesses, and the spacer is provided with a channel, and both the inner recesses are connected to the channel;

[0030] The second end of the rod-shaped structure is provided with a disassembly fitting portion, and the disassembly fitting portion is the spacing portion.

[0031] In one embodiment of the present disclosure, a seal is provided between the first body and the second body.

[0032] In one embodiment of the present disclosure, one of the first body and the second body is provided with a sealing groove, and the other is provided with a protrusion, the protrusion corresponds to the notch of the sealing groove, and the sealing member is installed in the sealing groove.

[0033] In one embodiment of the present disclosure, the first body is a box body, and the second body is a box cover; or, the first body is a box cover, and the second body is a box body.

[0034] Based on the above purpose, the present disclosure also provides a junction box, including the box structure.

[0035] The beneficial effects of the present disclosure are mainly:

[0036] The box structure provided by the present disclosure can press and fix the second body to the first body through the cooperation of the locking part and the elastic member. The operation is convenient and quick, and it is easy to install and disassemble. At the same time, because the end face of the other end of the locking part is located in the through hole, the overall appearance consistency of the box structure can be ensured to be good, and the outer dimensions of the box structure will not increase due to the existence of the locking part. When in use, the locking part is installed in the through hole, one end of the locking part abuts against the elastic member, and drives the second body to move relative to the first body, so that the second body is pressed and fixed to the first body. After the locking and fixing is completed, the end face of the other end of the locking part is located in the through hole. When the box structure needs to be opened, the locking part can be taken out from the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of the structure of the box body provided in the embodiment of the present disclosure;

[0039] Figure 2 A cross-sectional view of the box structure provided by the embodiment of the present disclosure in an unlocked state;

[0040] Figure 3 for Figure 2 A partial enlarged view of point Ⅰ in the middle;

[0041] Figure 4 A schematic diagram of a partial structure of a box structure provided in an embodiment of the present disclosure in an unlocked state (the locking portion is not shown);

[0042] Figure 5 It is a schematic structural diagram of the cooperation between the second body and the elastic member in the embodiment of the present disclosure;

[0043] Figure 6 A cross-sectional view of the box structure provided by the embodiment of the present disclosure in a locked state;

[0044] Figure 7 for Figure 6 A partial enlarged view of the middle II;

[0045] Figure 8 Another partial structural schematic diagram of the box structure provided by the embodiment of the present disclosure;

[0046] Fig. 9 is a schematic structural diagram of a locking portion in an embodiment of the present disclosure;

[0047] Fig.10 is another structural schematic diagram of the locking portion in the embodiment of the present disclosure;

[0048] Fig.11 is a top view of another structure of the locking portion in the embodiment of the present disclosure;

[0049] Fig.12 A third partial structural schematic diagram of the box structure provided in the embodiment of the present disclosure;

[0050] Fig.13 A schematic diagram of a fourth partial structure of the box structure provided by an embodiment of the present disclosure;

[0051] Fig.14 Another structural schematic diagram of the elastic member in the embodiment of the present disclosure.

[0052] The following are the descriptions of the reference numerals:

[0053] 10- First subject;

[0054] 11- side wall;

[0055] 12-through hole;

[0056] 13-depression;

[0057] 20- Second subject;

[0058] 21- elastic member;

[0059] 211 - transverse part;

[0060] 212- vertical part;

[0061] 2121-magnetic structure;

[0062] 2122-positioning hole;

[0063] 213-bending portion;

[0064] 2131- inclined section;

[0065] 21311-guide ramp;

[0066] 2132-transition section;

[0067] 2133-Horizontal extension section;

[0068] 30a, 30b-locking portion;

[0069] 31a, 31b - rod-like structures;

[0070] 310a, 310b- chamfered bevel;

[0071] 311a- first pole section;

[0072] 312a- second rod section;

[0073] 32a-bolt head;

[0074] 321a-groove;

[0075] 311b - inner recess;

[0076] 32b-spacing part;

[0077] 321b-channel;

[0078] 40-Seal. DETAILED DESCRIPTION

[0079] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0080] In the description of the present disclosure, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0081] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0082] See also Figures 1 to 14As shown, this embodiment provides a box structure, including a first main body 10, a second main body 20 and a locking portion, the side wall 11 of the first main body 10 is provided with a through hole 12, the interior of the second main body 20 is provided with an elastic member 21, the locking portion is detachably installed in the through hole 12, one end of the locking portion can abut against the elastic member 21 to drive the second main body 20 to move relative to the first main body 10, and to press and fix the second main body 20 to the first main body 10, and the end face of the other end of the locking portion is located in the through hole 12.

[0083] The box structure provided in this embodiment, through the cooperation of the locking part and the elastic member 21, the second body 20 is pressed and fixed to the first body 10, which is convenient and quick to operate, and is easy to install and disassemble. At the same time, because the end face of the other end of the locking part is located in the through hole 12, the overall appearance consistency of the box structure can be ensured to be good, and the outer dimensions of the box structure will not increase due to the existence of the locking part, which can save transportation costs. When in use, the locking part is installed in the through hole 12, one end of the locking part abuts against the elastic member 21, and drives the second body 20 to move relative to the first body 10, so that the second body 20 is pressed and fixed to the first body 10. After the locking and fixing is completed, the end face of the other end of the locking part is located in the through hole 12. When the box structure needs to be opened, the locking part can be taken out from the through hole 12.

[0084] In one embodiment, see Figure 3 As shown, a sealing member 40 is provided between the first body 10 and the second body 20. By providing the sealing member 40, the waterproof performance of the box structure can be enhanced.

[0085] One of the first body 10 and the second body 20 is provided with a sealing groove, and the other is provided with a protrusion, which corresponds to the notch of the sealing groove, and the sealing member 40 is installed in the sealing groove.

[0086] In one embodiment, see Figure 1 As shown, the first body 10 is a box body, and the second body 20 is a box cover. Exemplarily, the first body 10 is provided with a protrusion, and the second body 20 is provided with a sealing groove. For example, the sealing member 40 can be a sealing ring, and the protrusion is arranged around the edge of the side wall 11 of the first body 10 to press and fix the entire sealing ring in the sealing groove.

[0087] In other embodiments, the first body 10 is a box cover, and the second body 20 is a box body.

[0088] The technical solution of this embodiment will be described in detail below by taking the first main body 10 as a box body and the second main body 20 as a box cover as an example.

[0089] See also Figures 1 to 9As shown, the elastic member 21 includes a spring sheet, one end of which is connected to the second body 20, and the other end of the spring sheet is bent to form a guiding inclined surface 21311; the locking portion includes a rod-shaped structure, the rod-shaped structure has a first end and a second end that are relatively arranged, and the first end of the rod-shaped structure abuts against the guiding inclined surface 21311 to drive the second body 20 to move relative to the first body 10, and to press the second body 20 to be fixed to the first body 10.

[0090] When locking, the first end of the rod-like structure is extended into the through hole 12. When the first end abuts against the guide slope 21311, the rod-like structure continues to move into the first body 10, thereby applying a certain pressure to the spring sheet. The spring sheet can undergo elastic deformation, so that the rod-like structure can drive the second body 20 to move relative to the first body 10 through the spring sheet, and the second body 20 is pressed and fixed to the first body 10.

[0091] In one embodiment, after the locking and fixing is completed, the end face of the second end of the rod-like structure is coplanar with the outer surface of the side wall 11 of the first main body 10, so that the appearance consistency of the outer surface of the side wall of the box structure is good, and there will be neither protruding parts nor recessed parts.

[0092] In one embodiment, the guiding inclined surface 21311 extends in a direction away from the side wall 11 of the first body 10 so that the locking portion can smoothly move toward the inside of the first body 10 .

[0093] In one embodiment, see Figure 5 As shown, the spring piece includes a transverse portion 211, a vertical portion 212 and a bent portion 213 which are integrally formed, and the bent portion 213 includes an inclined section 2131, and the surface of the inclined section 2131 away from the vertical portion 212 is a guide inclined surface 21311. Specifically, the transverse portion 211 is fixedly connected to the second body 20 by a fastener, the vertical portion 212 extends into the first body 10, and the bent portion 213 is located at an end of the vertical portion 212 away from the transverse portion 211. The inclined section 2131 extends in a direction away from the side wall 11 of the first body 10, and the surface of the inclined section 2131 away from the vertical portion 212 is a guide inclined surface 21311, which facilitates the contact and relative sliding between the rod-like structure and the guide inclined surface 21311, and the movement process of pressing and fixing the second body 20 to the first body 10 by the spring piece.

[0094] In this embodiment, the vertical portion 212 is perpendicular to the horizontal portion 211. In other embodiments, the vertical portion 212 may not be perpendicular to the horizontal portion 211.

[0095] In one embodiment, see Figure 5As shown, the bending portion 213 further includes a transition section 2132 , one end of the transition section 2132 is connected to the vertical portion 212 , and the other end of the transition section 2132 is connected to the inclined section 2131 .

[0096] Specifically, one end of the transition section 2132 may be integrally formed with the vertical portion 212 , and the other end of the transition section 2132 may be integrally formed with the inclined section 2131 .

[0097] In one embodiment, the transition section 2132 is perpendicular to the vertical portion 212 .

[0098] In other embodiments, see Fig.14 As shown, the transition section 2132 may not be perpendicular to the vertical portion 212 .

[0099] In one embodiment, see Figure 5 As shown, a horizontal extension section 2133 is provided at the free end of the inclined section 2131 . After locking, the surface of the horizontal extension section 2133 close to the transverse portion 211 abuts against the circumferential surface of the rod-shaped structure.

[0100] By providing the horizontal extension section 2133 , when the locking portion is taken out, the horizontal extension section 2133 can play a transition role, thereby effectively preventing the locking portion from being stuck by the free end of the inclined section 2131 of the spring sheet.

[0101] It should be noted that the structure of the spring sheet is not limited to the above one, as long as it can ensure that the spring sheet can be elastically deformed under the drive of the rod-shaped structure, so that the rod-shaped structure can drive the second body 20 to move relative to the first body 10 through the spring sheet, and the second body 20 is pressed and fixed to the first body 10, during production and processing, the spring sheet can be selected according to the elastic force and structural strength to ensure that the spring sheet can drive the second body 20 to move in the direction close to the first body 10. In addition, the elastic member 21 is not limited to the form of a spring sheet, but can also be in other forms, such as a tension spring.

[0102] In one embodiment, the second end of the rod-shaped structure is provided with a disassembly fitting portion, which is used to separate the rod-shaped structure from the first body 10. By providing the disassembly fitting portion, it is convenient to separate the rod-shaped structure from the first body 10 directly or through auxiliary tools, so as to improve the disassembly efficiency.

[0103] There are many types of locking parts, and two types of locking parts will be mainly introduced below.

[0104] In a possible design of this embodiment, see Fig. 9 As shown, the locking portion 30a includes a rod-shaped structure 31a, and the rod-shaped structure 31a is provided with an external thread; the through hole 12 is provided with an internal thread matching the external thread. The locking portion 30a can be installed and removed by rotating the rod-shaped structure 31a. Figure 2 and Figure 3 As shown, when locking, the first end of the rod-shaped structure 31a is extended into the through hole 12, and the rod-shaped structure 31a is rotated along the first direction. When the first end of the rod-shaped structure 31a abuts against the guide inclined surface 21311, the rod-shaped structure 31a is continued to be rotated along the first direction, so as to apply a certain pressure to the spring sheet, and the spring sheet can be elastically deformed, so that the rod-shaped structure 31a can drive the second body 20 to move relative to the first body 10 through the spring sheet, and the second body 20 is pressed and fixed to the first body 10. After the locking and fixing is completed, see Figure 6 and Figure 7 As shown, the end surface of the second end of the rod-like structure 31a is located in the through hole 12. When the box structure needs to be opened, the rod-like structure 31a is rotated in the second direction to remove the locking portion 30a from the through hole 12, wherein the second direction is opposite to the first direction.

[0105] The external thread may be provided on the entire circumferential surface of the rod-shaped structure 31 a , or may be provided on only a portion of the circumferential surface of the rod-shaped structure 31 a .

[0106] In one embodiment, see Fig. 9 As shown, the rod-like structure 31a includes a first rod segment 311a and a second rod segment 312a, the second rod segment 312a is connected to the end of the first rod segment 311a away from the elastic member 21, the free end of the first rod segment 311a is the first end of the rod-like structure, and the free end of the second rod segment 312a is the second end of the rod-like structure; the circumferential surface of the first rod segment 311a is a smooth surface, and an external thread is arranged on the second rod segment 312a.

[0107] Exemplarily, the first rod segment 311a and the second rod segment 312a are both in the shape of round rods, and the axis of the first rod segment 311a coincides with the axis of the second rod segment 312a. During the rotation of the locking portion, since the circumferential surface of the first rod segment 311a is a smooth surface, the resistance of the first rod segment 311a to move along its axial direction can be reduced, and the wear between the spring piece and the first rod segment 311a can also be reduced.

[0108] In one embodiment, see Fig. 9 As shown, the second rod section 312a is provided with a bolt head 32a, see Figure 4 As shown, the outer surface of the side wall 11 of the first body 10 is provided with a recessed portion 13 for accommodating the bolt head 32a. The bolt head 32a cooperates with the recessed portion 13 to limit the travel of the locking portion. When the bolt head 32a abuts against the recessed portion 13, the locking portion stops moving.

[0109] Exemplarily, the bolt head 32a is truncated, and the end of the bolt head 32a with a smaller diameter is integrally formed with the second rod segment 312a. The recessed portion 13 is widened, and the recessed portion 13 is connected to the through hole 12 to form a countersunk hole.

[0110] In one embodiment, the second end of the rod-shaped structure 31a is provided with a disassembly fitting portion, see Figure 7 As shown, the disassembly fitting portion is a groove 321a provided on the bolt head 32a.

[0111] For example, the structure of the groove 321a can be in the form of a slot, a cross slot or a hexagonal slot provided on the head of an existing bolt. When disassembling, the locking portion can be loosened with a screwdriver and removed from the through hole 12.

[0112] In one embodiment, the first rod segment 311a and the second rod segment 312a are integrally formed, which can improve the mechanical strength of the rod-shaped structure and facilitate multiple disassembly and reuse.

[0113] In one embodiment, the first end of the rod-shaped structure is provided with an inclined portion. In this possible design, the inclined portion is provided at the first rod segment 311a.

[0114] In one embodiment, the guide slope 21311 is provided with a lubricating layer (not shown in the figure), and the inclined portion can contact the lubricating layer. Exemplarily, the lubricating layer is made of grease, and the grease is applied to the guide slope 21311 to reduce the friction between the rod-like structure and the guide slope 21311, thereby achieving easy assembly and disassembly.

[0115] In this possible design, see Fig. 9 As shown, the inclined portion is a chamfered inclined surface 310a, and the inclination angle of the chamfered inclined surface 310a is equal to the inclination angle of the guiding inclined surface 21311. This facilitates the movement of the rod-shaped structure 31a along the guiding inclined surface 21311, reduces resistance, and facilitates installation.

[0116] It should be noted that the inclination angle of the chamfered slope 310 a and the inclination angle of the guide slope 21311 may not be equal.

[0117] In this possible design, see Figure 5 and Figure 7 As shown, the vertical portion 212 is provided with a positioning hole 2122, and the positioning hole 2122 is used for the first end of the rod-shaped structure 31a to pass through.

[0118] By designing the position of the vertical portion 212, the length of the rod-like structure and the depth of the recessed portion 13, it is ensured that after abutting against the recessed portion 13, the free end of the first rod segment 311a can be located in the positioning hole 2122 to achieve positioning and prevent the rod-like structure from shaking in the radial direction.

[0119] See also Figure 8 As shown, the vertical portion 212 may not be provided with a positioning hole.

[0120] In another possible design of this embodiment, see Figures 10 to 13 As shown, the locking portion 30b includes a rod-shaped structure 31b, and the circumferential surface of the rod-shaped structure 31b is a smooth surface. In this way, the locking portion 30b can be installed and removed by plugging and pulling, which further shortens the assembly time and improves efficiency. When locking, the rod-shaped structure 31b is inserted into the through hole 12. After the first end of the rod-shaped structure 31b abuts against the guide inclined surface 21311, the rod-shaped structure 31b is continuously pushed into the first body 10, thereby applying a certain pressure to the spring sheet, and the spring sheet can be elastically deformed, so that the rod-shaped structure 31b can drive the second body 20 to move relative to the first body 10 through the spring sheet, and the second body 20 is pressed and fixed to the first body 10. After the locking and fixing is completed, the end face of the second end of the rod-shaped structure 31b is located in the through hole 12. When the box structure needs to be opened, the rod-shaped structure 31b can be pulled out from the through hole 12.

[0121] In another possible design, the first end of the rod-shaped structure 31b is connected to the spring piece via the magnetic attraction structure 2121. This method can effectively prevent the rod-shaped structure 31b from being separated from the first body 10.

[0122] In some embodiments, the magnetic attraction structure 2121 is a magnet disposed on the spring sheet. For example, the magnet is disposed on the vertical portion 212. Fig.12 As shown, the magnet is arranged on one side of the vertical portion 212 close to the guiding inclined surface 21311, so that the magnet can be in direct contact with the first end of the rod-shaped structure 31b, thereby enhancing the magnetic attraction effect.

[0123] See also Fig.13 As shown, when the vertical portion 212 is provided with a positioning hole 2122, the magnetic structure 2121 is arranged on the side of the vertical portion 212 away from the guide slope 21311, and the magnetic structure 2121 corresponds to the position of the positioning hole 2122. When the first end of the rod-like structure 31b is located in the positioning hole 2122, the first end of the rod-like structure can be attracted to the magnetic structure 2121, thereby limiting the radial movement of the rod-like structure and limiting the axial movement of the rod-like structure.

[0124] In some other embodiments, the magnetic attraction structure 2121 is a magnet disposed on the first end of the rod-shaped structure 31 b.

[0125] In other embodiments, the magnetic attraction structure 2121 includes a first magnet and a second magnet, the first magnet and the second magnet attract each other, the first magnet is disposed at the first end of the rod-shaped structure 31b, and the second magnet is disposed on the spring.

[0126] In another possible design, the second end of the rod-shaped structure is provided with a disassembly fitting portion, see Fig.10 and Fig.11 As shown, the end surface of the second end of the rod-like structure 31b is provided with two inner recesses 311b, a spacer 32b is formed between the two inner recesses 311b, the spacer 32b is provided with a channel 321b, and the two inner recesses 311b are both connected to the channel 321b; the disassembly fitting portion is the spacer 32b.

[0127] Exemplarily, the rod-shaped structure 31b is in the shape of a round rod, the two inner recesses 311b are symmetrically arranged along the radial direction of the end surface of the second end, the spacer 32b extends along the radial direction of the second end surface, the spacer 32b is provided with a channel 321b, and the two inner recesses 311b are both connected to the channel 321b, so that the spacer 32b forms a pull ring structure. When the locking part needs to be removed, the pull ring structure can be hooked by fingers and the locking part can be pulled outward to remove the locking part; a tool such as a rope can also be used, for example, the rope is tied to the pull ring structure and then the rope is pulled to remove the locking part 30b.

[0128] It should be noted that the partition portion 32b may not be provided with a channel.

[0129] In another possible design, a recess may be provided on the outer surface of the side wall 11 of the first body 10, and correspondingly, an annular protrusion may be provided on the second end of the rod-like structure, and the annular protrusion is limited in the recess. At this time, the rod-like structure will stop moving, and at the same time, the first end of the rod-like structure is attracted and fixed to the magnetic structure.

[0130] In this other possible design, the first end of the rod-shaped structure 31b is provided with an inclined portion. The guide slope 21311 is provided with a lubricating layer, and the inclined portion can contact the lubricating layer.

[0131] In another possible design, the inclined portion is a chamfered slope 310b, and the inclination angle of the chamfered slope 310b is equal to the inclination angle of the guide slope 21311. This facilitates the movement of the rod-shaped structure 31b along the guide slope 21311, reduces resistance, and facilitates installation.

[0132] In this another possible design, the inclined portion can also be an inclined plane. When inserting the locking portion, first turn the inclined plane downward, and after insertion, the inclined plane can abut against the guiding inclined surface 21311.

[0133] This embodiment further provides a junction box, including the box structure provided in this embodiment.

[0134] The junction box provided in the present embodiment uses the box structure provided in the present embodiment. The second main body 20 is pressed and fixed to the first main body 10 through the cooperation of the locking portion and the elastic member 21. The operation is convenient and quick, and it is easy to install and disassemble. At the same time, since the end face of the other end of the locking portion is located in the through hole 12, the overall appearance consistency of the box structure can be ensured to be good, and the external dimensions of the box structure will not increase due to the existence of the locking portion, which can save transportation costs.

[0135] Since the box structure is very convenient to assemble and disassemble, it is convenient for customers to connect the wires themselves at the installation site.

[0136] In one embodiment, the junction box further comprises electrical components arranged inside the box structure. The electrical components are prior art, and mainly include wiring terminals, communication modules, switches, circuit breakers, and the like.

[0137] Illustratively, the junction box provided in this embodiment can be applied to a household photovoltaic storage inverter.

[0138] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A box structure, characterized in that: include: A first body, wherein a side wall of the first body is provided with a through hole; a second body, wherein an elastic member is disposed inside the second body; as well as A locking portion, wherein the locking portion is detachably mounted on the through hole, one end of the locking portion being capable of abutting against the elastic member to drive the second body to move relative to the first body and to press and fix the second body to the first body, and the end face of the other end of the locking portion is located in the through hole.

2. The box structure according to claim 1, characterized in that: The elastic member comprises a spring sheet, one end of which is connected to the second body, and the other end of which is bent to form a guiding inclined surface; The locking portion includes a rod-shaped structure having a first end and a second end that are oppositely disposed, and the first end of the rod-shaped structure abuts against the guide slope to drive the second body to move relative to the first body and to press and fix the second body to the first body.

3. The box structure according to claim 2, characterized in that: An end surface of the second end of the rod-shaped structure is coplanar with an outer surface of the side wall of the first body.

4. The box structure according to claim 2, characterized in that: The guiding inclined surface extends in a direction away from the side wall of the first body.

5. The box structure according to claim 2, characterized in that: The first end of the rod-shaped structure is provided with an inclined portion.

6. The box structure according to claim 5, characterized in that: The inclined portion is a chamfered inclined surface, and the inclination angle of the chamfered inclined surface is equal to the inclination angle of the guiding inclined surface.

7. The box structure according to claim 2, characterized in that: The spring sheet includes a lateral portion, a vertical portion and a bent portion which are integrally formed, the bent portion includes an inclined section, and a surface of the inclined section away from the vertical portion is the guiding inclined surface.

8. The box structure according to claim 7, characterized in that: The bending portion further includes a transition section, one end of which is connected to the vertical portion, and the other end of which is connected to the inclined section.

9. The box structure according to claim 8, characterized in that: The transition section is perpendicular to the vertical portion.

10. The box structure according to claim 7, characterized in that: A horizontal extension section is provided at the free end of the inclined section, and a surface of the horizontal extension section close to the transverse portion abuts against a circumferential surface of the rod-shaped structure.

11. The box structure according to claim 7, characterized in that: The vertical portion is provided with a positioning hole, and the positioning hole is used for the first end of the rod-shaped structure to pass through.

12. The box structure according to claim 2, characterized in that: The second end of the rod-shaped structure is provided with a disassembly fitting portion, and the disassembly fitting portion is used to separate the rod-shaped structure from the first body.

13. The box structure according to claim 5, characterized in that: The guide slope is provided with a lubricating layer, and the inclined portion can be in contact with the lubricating layer.

14. The box structure according to any one of claims 2 to 13, characterized in that: The rod-shaped structure is provided with an external thread; and the through hole is provided with an internal thread matching the external thread.

15. The box structure according to claim 14, characterized in that: The rod-like structure includes a first rod segment and a second rod segment, the second rod segment is connected to an end of the first rod segment away from the elastic member, the free end of the first rod segment is the first end of the rod-like structure, and the free end of the second rod segment is the second end of the rod-like structure; the circumferential surface of the first rod segment is a smooth surface, and the external thread is arranged on the second rod segment.

16. The box structure according to claim 15, characterized in that: The second rod segment is provided with a bolt head, and the outer surface of the side wall of the first body is provided with a recessed portion for accommodating the bolt head.

17. The box structure according to claim 16, characterized in that: The second end of the rod-shaped structure is provided with a disassembly fitting portion, and the disassembly fitting portion is a groove provided on the bolt head.

18. The box structure according to claim 15, characterized in that: The first rod segment and the second rod segment are integrally formed.

19. The box structure according to any one of claims 2 to 13, characterized in that: The circumferential surface of the rod-shaped structure is a smooth surface.

20. The box structure according to claim 19, characterized in that: The first end of the rod-shaped structure is connected to the spring sheet via a magnetic attraction structure.

21. The box structure according to claim 19, characterized in that: The end surface of the second end of the rod-like structure is provided with two inner recesses, and a spacer is formed between the two inner recesses; or, the end surface of the second end of the rod-like structure is provided with two inner recesses, and a spacer is formed between the two inner recesses, and the spacer is provided with a channel, and both the inner recesses are connected to the channel; The second end of the rod-shaped structure is provided with a disassembly fitting portion, and the disassembly fitting portion is the spacing portion.

22. The box structure according to any one of claims 1 to 13, characterized in that: A sealing member is disposed between the first body and the second body.

23. The box structure according to claim 22, characterized in that: One of the first body and the second body is provided with a sealing groove, and the other is provided with a protrusion, the protrusion corresponds to the notch of the sealing groove, and the sealing member is installed in the sealing groove.

24. The box structure according to any one of claims 1 to 13, characterized in that: The first body is a box body, and the second body is a box cover; or the first body is a box cover, and the second body is a box body.

25. A junction box, characterized in that: A box structure comprising any one of claims 1 to 24.

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