Power box and sealing method thereof

Abstract

The application provides a power supply box and a sealing method thereof, and belongs to the technical field of power supply boxes. The power supply box comprises a main body, a circuit board, a first end cover, a second end cover, a partition piece and a sealing assembly. The main body is filled with sealing glue, so that the first end cover and the second end cover are sealingly connected with the main body. The partition piece is connected with the circuit board and is accommodated in the main body. The circuit board is provided with a card reading part. The partition piece comprises an accommodation cavity for accommodating the card reading part. The first end cover comprises an end hole in communication with the accommodation cavity. An external card can pass through the end hole and extend into the accommodation cavity, so as to install the external card to the card reading part or take out the external card on the card reading part. The sealing assembly is detachably accommodated in the end hole to seal the accommodation cavity. The partition piece capable of accommodating the card reading part is arranged, and the end hole in communication with the partition piece is arranged on the first end cover, so that personnel can install the external card to the card reading part or take out the external card from the card reading part.

Description

TECHNICAL FIELD

[0001] The present application relates to a power box and a sealing method thereof, and belongs to the technical field of power boxes. BACKGROUND

[0002] At present, in order to improve the air tightness of the power box, the existing waterproof power box is filled with sealing glue in the shell, and the entire shell is filled with sealing glue to achieve sealing. Although this glue filling method can also obtain good air tightness and effectively improve the tensile strength of the wire. However, in some power boxes that need to use external cards for power supply or use SIM cards for communication to control the power supply, the entire shell is filled with sealing glue, so that personnel cannot operate inside the power box. Therefore, the glue filling method cannot be applied to such power boxes.

[0003] Therefore, it is necessary to improve the power box and the sealing method thereof to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a power box and a sealing method thereof to solve the problem that the power box cannot be operated after being filled with sealing glue in the prior art.

[0005] To achieve the above purpose, the present application provides a power box, which comprises a main body, a circuit board, a first end cover, a second end cover, a barrier and a sealing assembly. The main body is filled with sealing glue, so that the first end cover and the second end cover are sealingly connected with the main body. The barrier is connected with the circuit board and is accommodated in the main body. The circuit board is provided with a card reading part. The barrier comprises a receiving cavity for accommodating the card reading part. The first end cover comprises an end hole communicating with the receiving cavity. An external card can pass through the end hole and extend into the receiving cavity to install the external card to the card reading part or take out the external card on the card reading part. The sealing assembly is detachably accommodated in the end hole to seal the receiving cavity.

[0006] As a further improvement of the present application, the circuit board is provided with a mounting groove. The barrier comprises a through hole arranged beside the receiving cavity. The side wall of the barrier is accommodated in the mounting groove, so that the circuit board is partially accommodated in the through hole.

[0007] As a further improvement of the present application, the barrier is arranged in a square shape. The mounting groove is provided with two mounting grooves to accommodate the two opposite side walls of the barrier, respectively.

[0008] As a further improvement of the present application, the receiving cavity penetrates through the partition, and comprises a first part and a second part, the card reading part extends outwardly from the circuit board and is received in the first part, the second part has a size larger than that of the first part to facilitate the operator to install or remove the external card.

[0009] As a further improvement of the present application, the partition further comprises an identification part recessed inwardly from the outer wall of the partition, the identification part is arranged at one end of the partition away from the first end cover.

[0010] As a further improvement of the present application, the sealing assembly comprises a sealing plug, the sealing plug partially extends into the end hole and is connected with the first end cover in an interference fit.

[0011] As a further improvement of the present application, the sealing plug comprises an abutting part and a sealing part, the sealing part is received in the end hole, and the abutting part abuts against the first end cover, the sealing assembly further comprises a sealing gasket arranged between the abutting part and the first end cover, the sealing gasket is used to seal the abutting part and the first end cover.

[0012] As a further improvement of the present application, the first end cover comprises a first cover plate and a first sealing member matched with the main body, the first sealing member is arranged between the main body and the first cover plate, the power box further comprises a fixing member, the first cover plate is provided with a first fixing hole, the first sealing member is provided with a first through hole matched with the first fixing hole, and the fixing member penetrates through the first fixing hole and the first through hole and is locked with the main body.

[0013] As a further improvement of the present application, the second end cover comprises a second cover plate and a second sealing member matched with the main body, the second sealing member is arranged between the main body and the second cover plate, the power box further comprises a fixing member, the second cover plate is provided with a second fixing hole, the second sealing member is provided with a second through hole matched with the second fixing hole, and the fixing member penetrates through the second fixing hole and the second through hole and is locked with the main body.

[0014] As a further improvement of the present application, the power box further comprises a cable electrically connected with the circuit board and a cable sleeve plug sleeved outside the cable, the second end cover is provided with a cable hole, the cable penetrates through the cable hole and is electrically connected with the circuit board, the cable sleeve plug is provided with a clamping groove, the cable sleeve plug is received in the cable hole and is clamped with the second end cover through the clamping groove to seal and connect the cable and the second end cover.

[0015] To achieve the above object, the present application further provides a sealing method of a power box for filling sealing glue into the power box, comprising:

[0016] S1, connecting the second end cover with one end of the main body, and installing the electronic assembly and the barrier in the main body;

[0017] S2, vertically placing the power supply box, and placing the second end cover below the main body, pouring the sealant into the main body from top to bottom, and filling the sealant to the lower end of the barrier;

[0018] S3, curing the sealant filled in step S2;

[0019] S4, vertically placing the power supply box, and placing the second end cover below the main body, pouring the sealant again between the main body and the barrier, and filling the sealant, installing the first end cover with the main body, and making the end hole communicate with the receiving cavity;

[0020] S5, curing the sealant filled in step S4 to seal the first end cover, the second end cover and the main body.

[0021] As a further improvement of the application, in step S2, the barrier is provided with an identification part on the side close to the second end cover, and the sealant is filled at the identification part to seal the lower end of the barrier.

[0022] As a further improvement of the application, in step S4, the sealant is arranged between the barrier and the main body, and the receiving cavity is not filled with the sealant.

[0023] The power supply box of the application has the advantages that: the power supply box of the application is provided with a barrier capable of receiving a card reading part, and an end hole communicating with the barrier is arranged on the first end cover, so that a person can install or remove an external card to or from the card reading part; the seal assembly is arranged in the end hole to achieve the sealing and waterproof of the barrier; the sealant is poured between the barrier and the main body to achieve the sealing connection between the first end cover, the second end cover and the main body; the pouring mode is adjusted to twice pouring, so that the sealant does not flow into the barrier, on the one hand, the sealing and waterproof of the power supply box is achieved, and on the other hand, the space in the barrier can be operated to disassemble or install the external card. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the power supply box of the preferred embodiment of the application.

[0025] Figure 2 is Figure 1 is an exploded view of the power supply box in FIG. 1.

[0026] Figure 3 is Figure 2 is a partial enlarged view of part A in FIG. 2.

[0027] Figure 4 is Figure 2 is a partial enlarged view of the B part in the middle.

[0028] Figure 5 is Figure 2 is a perspective view of the first part and the sealing assembly in the middle.

[0029] Figure 6 is Figure 2 is a perspective view of the circuit board, the card reading part and the barrier in the middle.

[0030] Figure 7 is Figure 6 is a perspective view of the barrier in the middle.

[0031] Figure 8 is a flow chart of the sealing method of the power supply box of the preferred embodiment of the present application.

[0032] Reference signs: power supply box 100, main body 1, electronic assembly 2, circuit board 21, mounting groove 211, card reading part 22, card slot 221, antenna 23, connecting end 231, locking part 232, first end cover 3, first cover plate 31, first fixing hole 311, communication hole 32, end hole 33, first sealing part 34, first through hole 341, second end cover 4, second cover plate 41, second fixing hole 411, second sealing part 42, second through hole 421, cable hole 43, barrier 5, accommodating cavity 51, first part 511, second part 512, through hole 52, identification part 53, sealing assembly 6, sealing plug 61, abutting part 611, recess 612, sealing part 613, sealing gasket 62, fixing part 7, cable 8, cable plug 81, clamping groove 811, convex part 812, cable hole 813. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in detail below with reference to the drawings and specific embodiments.

[0034] Please refer to Figure 1 and Figure 2As shown, the power box 100 is used for adjusting voltage and supplying power to the power consumer. The power box 100 comprises a main body 1, an electronic assembly 2, a first end cover 3, a second end cover 4, a partition 5 and a sealing assembly 6. Specifically, the electronic assembly 2 comprises a circuit board 21 and a card reading part 22 electrically connected to the circuit board 21. The first end cover 3 and the second end cover 4 are respectively arranged at two ends of the main body 1 and connected to the main body 1. The main body 1 is filled with sealing glue (not shown) so that the first end cover 3 and the second end cover 4 are sealingly connected to the main body 1. The partition 5 is connected to the circuit board 21 and accommodated in the main body 1. The partition 5 comprises an accommodation cavity 51 for accommodating the card reading part 22. The first end cover 3 comprises an end hole 33 in communication with the accommodation cavity 51. An external card (not shown) can pass through the end hole 33 and extend into the accommodation cavity 51 so as to be mounted to the card reading part 22 or be taken out of the card reading part 22. The sealing assembly 6 is detachably accommodated in the end hole 33 to seal the accommodation cavity 51.

[0035] The sealing glue is filled between the partition 5 and the main body 1, and the sealing glue cannot enter the accommodation cavity 51. In this way, an operator can operate in the accommodation cavity 51 to mount an external card to the card reading part 22 or take out the external card after being detached from the card reading part 22, so as to adapt to the power box 100 requiring card insertion and meet the detachable functional requirements of the internal devices of the power box 100. Preferably, the sealing glue is polyurethane, epoxy resin or other liquid having sealing effect and capable of curing.

[0036] In this embodiment, the main body 1 is designed in a cuboid shape. The main body 1 has a through cavity formed inside. The first end cover 3 and the second end cover 4 are arranged at two ends of the main body 1 and connected to the main body 1. The shapes of the first end cover 3 and the second end cover 4 match the shape of the main body 1 and are both square-shaped to seal the cavity. The main body 1 comprises a shell and a Mylar sheet accommodated in the shell, thereby improving the sealing effect of the shell. Of course, in other embodiments, the main body 1 can be designed in a cylindrical shape, a special shape or other shapes according to actual conditions. The main body 1 can also not be provided with the Mylar sheet, but only the shell is used to seal the cavity. This is not limited herein.

[0037] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 7As shown, the circuit board 21 is designed in a rectangular shape to be accommodated in the cavity of the main body 1, the circuit board 21 is provided with mounting grooves 211, the blocking piece 5 includes through holes 52 arranged beside the accommodation cavity 51, the side walls of the blocking piece 5 are accommodated in the mounting grooves 211, so that the circuit board 21 is partially accommodated in the through holes 52. Specifically, the blocking piece 5 is designed in a square shape, and the mounting grooves 211 are provided with two to accommodate the opposite two side walls of the blocking piece 5. Among them, the mounting grooves 211 are designed in a long strip hole, the mounting grooves 211 are arranged at one end of the circuit board 21 close to the first end cover 3 and penetrate the circuit board 21, the through holes 52 are arranged at one side of the blocking piece 5 close to the circuit board 21 and penetrate the blocking piece 5, and the distance between the two mounting grooves 211 is matched with the distance between the opposite two side walls of the blocking piece 5, so that the side walls of the blocking piece 5 can be accommodated in the mounting grooves 211 and sleeved outside the circuit board 21, realizing the preliminary fixation of the circuit board 21 and the blocking piece 5.

[0038] The accommodation cavity 51 penetrates the blocking piece 5 and is arranged at one side of the blocking piece 5 away from the circuit board 21, the accommodation cavity 51 includes a first part 511 and a second part 512, the card reading part 22 extends outward from the circuit board 21 and is accommodated in the first part 511, the size of the second part 512 is larger than that of the first part 511, so as to facilitate the operator to install or take out the external card. Specifically, the card reading part 22 is designed in an L shape, so that one end of the card reading part 22 is electrically connected with the circuit board 21, and the other end can extend into and be accommodated in the first part 511, the card reading part 22 further includes a card slot 221 matched with the external card, the card slot 221 is arranged at one side of the first part 511 close to the second part 512, so as to facilitate the installation or disassembly of the external card, the first part 511 is designed in a square shape to accommodate the card slot 221, and the second part 512 is designed in a circular shape, so that part of the fingers of the operator can extend into the second part 512 to install the external card on the card reading part 22. The size of the first part 511 and the second part 512 is not limited here, as long as the card reading part 22 can be accommodated in the first part 511, and part of the fingers of the operator can extend into the second part 512 and install the external card in the card slot 221 or disassemble the external card from the card slot 221.

[0039] The spacer 5 comprises a marking portion 53 recessed inwardly from the outer side wall of the spacer 5, and the marking portion 53 is arranged at the end of the spacer 5 away from the first end cover 3. Specifically, the marking portion 53 is arranged at a distance from the end of the spacer 5, the marking portion 53 is a scale groove, and the marking portion 53 is arranged on only one side of the spacer 5. The direction in which the marking portion 53 is arranged on the spacer 5 is perpendicular to the direction in which the accommodation cavity 51 is opened. In this way, when the sealant is poured into the main body 1, the pouring height of the sealant can be measured. When the sealant is poured to the marking portion 53, the end of the accommodation cavity 51 away from the first end cover 3 is in contact with the sealant. After the sealant is solidified, on the one hand, the end of the spacer 5 away from the first end cover 3 is sealed, and on the other hand, the spacer 5 is fixed on the circuit board 21, and part of the card reading portion 22 is fixed in the accommodation cavity 51. Of course, in other embodiments, the marking portion 53 can be a scale line, the arrangement direction of the marking portion 53 can be the same as the opening direction of the accommodation cavity 51, and the marking portion 53 can be arranged on the spacer 5 in several ways, as long as the purpose of measuring the height of the sealant can be achieved, which is not limited here.

[0040] Please refer to Figure 1 , Figure 2 and Figure 5 , the sealing assembly 6 comprises a sealing plug 61 and a sealing gasket 62. The sealing plug 61 partially extends into the end hole 33 and is connected to the first end cover 3 in an interference fit. The sealing gasket 62 is arranged between the sealing plug 61 and the first end cover 3. Specifically, the sealing plug 61 comprises an abutting portion 611 and a sealing portion 613. The sealing portion 613 is accommodated in the end hole 33, and the abutting portion 611 abuts against the first end cover 3. The sealing gasket 62 is arranged between the abutting portion 611 and the first end cover 3, and is used to seal the abutting portion 611 and the first end cover 3. The end hole 33 penetrates through the first end cover 3. The shape and size of the end hole 33, the shape and size of the sealing portion 613, and the shape and size of the accommodation cavity 51 can be matched with each other. The sealing portion 613 can pass through the end hole 33 and be partially accommodated in the accommodation cavity 51, so as to achieve the covering and sealing of the accommodation cavity 51. The size of the abutting portion 611 is larger than that of the sealing portion 613. When the sealing portion 613 extends into the end hole 33, the abutting portion 611 can abut against the first end cover 3 to cover the end hole 33, and the sealing effect between the sealing plug 61 and the first end cover 3 is improved by the sealing gasket 62.

[0041] Preferably, the sealing gasket 62 is arranged in a circular ring shape, and the sealing plug 61 is arranged in a circular column shape. The sealing gasket 62 and the sealing plug 61 are both rubber products with elasticity. The sealing plug 61 is accommodated in the end hole 33 and connected to the first end cover 3 in an interference fit, which improves the connection stability of the sealing plug 61 and the first end cover 3, and improves the sealing effect between the sealing plug 61 and the first end cover 3.

[0042] The abutting part 611 is further provided with a groove 612 at one end away from the sealing part 613. The groove 612 is in a strip shape. When disassembling, an external tool is used to cooperate with the groove 612 to take out the sealing plug 61 from the first end cover 3, so as to realize the installation and disassembly of the sealing plug 61. In the embodiment, the sealing plug 61 is in interference fit with the first end cover 3 to realize the connection. Of course, in other embodiments, the sealing plug 61 can also be connected with the first end cover 3 through threads, which is not limited here.

[0043] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , the power box 100 includes a fixing part 7, the first end cover 3 includes a first cover plate 31 matched with the main body 1 and a first sealing part 34, the first sealing part 34 is arranged between the main body 1 and the first cover plate 31, the first cover plate 31 is provided with first fixing holes 311, the first sealing part 34 is provided with first through holes 341 matched with the first fixing holes 311, the fixing part 7 passes through the first fixing holes 311 and the first through holes 341 and is locked and connected with the main body 1, so as to install the first end cover 3 on the main body 1. Specifically, the first fixing holes 311 are four, which are arranged at the four top corners of the first cover plate 31, the first through holes 341 are also four, which are arranged at the four top corners of the first sealing part 34 and correspond to the first fixing holes 311. When the fixing part 7 passes through the first fixing holes 311 and the first through holes 341 and is fixed with the main body 1, the first cover plate 31 and the main body 1 extrude the first sealing part 34, so as to realize the sealed connection between the first cover plate 31 and the main body 1.

[0044] The first end cover 3 is further provided with an end hole 33 penetrating through the first end cover 3 and the first sealing part 34, the electronic assembly 2 includes an antenna 23, the antenna 23 is provided with a connecting end 231 and a locking part 232 matched with the connecting end 231, wherein one end of the antenna 23 is connected with the circuit board 21, the other end is connected with the first end cover 3 through the connecting end 231 and the locking part 232, part of the connecting end 231 passes through the end hole 33 from the side of the first end cover 3 close to the main body 1 and is connected with the locking part 232 arranged at the side of the first end cover 3 away from the main body 1, so as to fix the antenna 23 on the first end cover 3. Preferably, the connecting end 231 is provided with threads, the locking part 232 is a nut, and the connecting end 231 is connected with the locking part 232 through threads to fix the antenna 23 on the first end cover 3.

[0045] The second end cover 4 comprises a second cover plate 41 matched with the main body 1 and a second sealing member 42 arranged between the main body 1 and the second cover plate 41. The second cover plate 41 is provided with second fixing holes 411, and the second sealing member 42 is provided with second through holes 421 matched with the second fixing holes 411. The fixing member 7 passes through the second fixing holes 411 and the second through holes 421 and is locked with the main body 1 to mount the second end cover 4 on the main body 1. Specifically, the second fixing holes 411 are four in number and are arranged at four top corners of the second cover plate 41 respectively. The second through holes 421 are also four in number and are arranged at four top corners of the second sealing member 42 respectively and correspond to the second fixing holes 411. When the fixing member 7 passes through the second fixing holes 411 and the second through holes 421 and is fixed with the main body 1, the second cover plate 41 and the main body 1 press the second sealing member 42 to achieve the sealed connection between the second cover plate 41 and the main body 1.

[0046] Preferably, the fixing member 7 is a screw, and the first sealing member 34 and the second sealing member 42 are rubber products with elasticity.

[0047] The power supply box 100 further comprises a cable 8 electrically connected with the circuit board 21 and a wire passing plug 81 sleeved outside the cable 8. The second end cover 4 is provided with a cable hole 43 through which the cable 8 is electrically connected with the circuit board 21. The wire passing plug 81 is provided with a clamping groove 811 and is accommodated in the cable hole 43 and clamped with the second end cover 4 through the clamping groove 811 to achieve the sealed connection between the cable 8 and the second end cover 4. Specifically, the wire passing plug 81 further comprises a wire passing hole 813 and a protruding portion 812. The wire passing hole 813 is matched in shape and size with the cable 8 so that the cable 8 can pass through the wire passing hole 813 and be sealed with the wire passing plug 81. The clamping groove 811 is arranged at the middle position of the wire passing plug 81 and is annularly arranged. The protruding portion 812 is two in number and is arranged at two sides of the clamping groove 811 respectively and extends outward from the wire passing plug 81. The cable hole 43 is matched in size with the wire passing plug 81 so that the wire passing plug 81 can be accommodated in the cable hole 43 and the two protruding portions 812 are arranged at two sides of the second end cover 4 respectively to achieve the sealed connection between the cable 8 and the second end cover 4. Preferably, the wire passing plug 81 is a rubber product with elasticity.

[0048] Referring to Figure 8 It is shown that the application further provides a sealing method of the power supply box 100 for pouring glue on the power supply box 100 to achieve the sealed connection between the first end cover 3, the second end cover 4 and the main body 1. The sealing method comprises the following steps:

[0049] S1, connecting the second end cover 4 with one end of the main body 1 and mounting the electronic assembly 2 and the barrier 5 in the main body 1.

[0050] Specifically, the card reader 22 and the antenna 23 are electrically mounted on the circuit board 21 near the first end cover 3, the side wall of the partition piece 5 passes through the mounting groove 211 and the card reader 22 is accommodated in the accommodation cavity 51. The cable 8 is sleeved outside the wire plug 81 and connected to the circuit board 21 near the second end cover 4, then the second cover plate 41 and the second sealing piece 42 are overlapped, the wire plug 81 is mounted in the cable hole 43, then the second sealing piece 42 is arranged between the second cover plate 41 and the main body 1, and the fixing piece 7 passes through the second fixing hole 411 and the second through hole 421 to achieve the locking connection of the second end cover 4 and the main body 1.

[0051] S2, the power box 100 is vertically placed, and the second end cover 4 is placed below the main body 1, the sealant is poured from top to bottom into the main body 1, and the sealant is filled to the lower end of the partition piece 5.

[0052] Specifically, the partition piece 5 is provided with a mark part 53 near the second end cover 4, the sealant is filled to the mark part 53 to seal the lower end of the partition piece 5, at this time, the highest liquid level of the filled sealant is flush with the mark part 53, and the end of the accommodation cavity 51 near the second end cover 4 is immersed in the sealant, but there is still a distance between the sealant and the card slot 221, so that the sealant will not contact the card slot 221.

[0053] S3, the sealant filled in step S2 is cured. The end of the accommodation cavity 51 near the second end cover 4 is sealed by the sealant, and the partition piece 5 and the card reader 22 are sealed and connected by the sealant, so that the partition piece 5 and the circuit board 21 are preliminarily fixed.

[0054] S4, the power box 100 is vertically placed, and the second end cover 4 is placed below the main body 1, the sealant is poured again between the main body 1 and the partition piece 5, until the first end cover 3 and the main body 1 are installed, and the end hole 33 is communicated with the accommodation cavity 51.

[0055] Specifically, the sealant is arranged between the partition piece 5 and the main body 1, and the sealant does not flow into the accommodation cavity 51, the sealant flows into the through hole 52 and the mounting groove 211 to seal and connect the partition piece 5 and the circuit board 21. After the sealant is filled, the first cover plate 31 and the first sealing piece 34 are overlapped, the connecting end 231 of the antenna 23 is connected with the communication hole 32 on the first end cover 3, then the fixing piece 7 passes through the first fixing hole 311 and the first through hole 341 and is connected with the main body 1 to seal the sealant between the first end cover 3, the main body 1 and the second end cover 4.

[0056] S5, curing the sealant filled in step S4 to seal the first end cover 3, the second end cover 4 and the main body 1. Finally, the sealing plug 61 is installed in the end hole 33 of the first end cover 3, and the sealing gasket 62 is arranged between the sealing plug 61 and the first end cover 3, so as to realize the covering and sealing of the containing cavity 51.

[0057] In summary, the power box 100 of the present application can accommodate the card reading part 22 by setting the partition piece 5, and can install or remove the external card to or from the card reading part 22 by setting the end hole 33 on the first end cover 3 and communicating with the partition piece 5; the sealing assembly 6 is set in the end hole 33 to realize the sealing and waterproof of the partition piece 5; the sealant is injected between the partition piece 5 and the main body 1 to realize the sealing connection between the first end cover 3, the second end cover 4 and the main body 1; the injection mode is adjusted to twice injection, so that the sealant does not flow into the partition piece 5, on the one hand, the sealing and waterproof of the power box 100 is realized, on the other hand, the space in the partition piece 5 can be operated to disassemble or install the external card.

[0058] The above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application.

Claims

1. A power supply box, characterized in that: The system includes a main body (1), a circuit board (21), a first end cap (3), a second end cap (4), a partition (5), and a sealing assembly (6). The main body (1) is filled with sealant, so that the first end cap (3) and the second end cap (4) are sealed to the main body (1). The partition (5) is connected to the circuit board (21) and housed within the main body (1). The circuit board (21) has a card reader (22). The partition (5) includes a receiving cavity (51) for receiving the card reader (22). The first end cap (3) includes an end hole (33) communicating with the receiving cavity (51). An external card can pass through the end hole (33) and extend into the receiving cavity (51) to install the external card onto the card reader (22) or remove the external card from the card reader (22). The sealing component (6) is detachably received in the end hole (33) to seal the receiving cavity (51). The circuit board (21) has a mounting groove (211). The partition (5) includes a through hole (52) located beside the receiving cavity (51). The sidewall of the partition (5) is received in the mounting groove (211), such that the circuit board (21) is partially received in the through hole (52).

2. The power supply box according to claim 1, characterized in that: The partition (5) is square in shape, and there are two mounting slots (211) to accommodate the two opposite sidewalls of the partition (5) respectively.

3. The power supply box according to claim 1, characterized in that: The receiving cavity (51) extends through the partition (5) and includes a first part (511) and a second part (512). The card reader (22) extends outward from the circuit board (21) and is received in the first part (511). The second part (512) is larger than the first part (511) to facilitate the operator to install or remove the external card.

4. The power supply box according to claim 1, characterized in that: The partition (5) also includes a marking portion (53) recessed inward from the outer side wall of the partition (5), the marking portion (53) being located at the end of the partition (5) away from the first end cap (3).

5. The power supply box according to claim 1, characterized in that: The sealing assembly (6) includes a sealing plug (61) which partially extends into the end hole (33) and is interference-fitted with the first end cap (3).

6. The power supply box according to claim 5, characterized in that: The sealing plug (61) includes an abutment portion (611) and a sealing portion (613). The sealing portion (613) is received in the end hole (33) and the abutment portion (611) abuts against the first end cap (3). The sealing assembly (6) also includes a sealing gasket (62) disposed between the abutment portion (611) and the first end cap (3). The sealing gasket (62) is used to seal the abutment portion (611) and the first end cap (3).

7. The power supply box according to claim 1, characterized in that: The first end cap (3) includes a first cover plate (31) and a first sealing member (34) that cooperate with the main body (1). The first sealing member (34) is disposed between the main body (1) and the first cover plate (31). The power box (100) also includes a fixing member (7). The first cover plate (31) is provided with a first fixing hole (311). The first sealing member (34) is provided with a first through hole (341) that cooperates with the first fixing hole (311). The fixing member (7) passes through the first fixing hole (311) and the first through hole (341) and is locked and connected to the main body (1).

8. The power supply box according to claim 1, characterized in that: The second end cap (4) includes a second cover plate (41) that cooperates with the main body (1) and a second sealing member (42). The second sealing member (42) is disposed between the main body (1) and the second cover plate (41). The power box (100) also includes a fixing member (7). The second cover plate (41) is provided with a second fixing hole (411). The second sealing member (42) is provided with a second through hole (421) that cooperates with the second fixing hole (411). The fixing member (7) passes through the second fixing hole (411) and the second through hole (421) and is locked and connected to the main body (1).

9. The power supply box according to claim 1, characterized in that: The power supply box (100) also includes a cable (8) electrically connected to the circuit board (21) and a wire plug (81) sleeved on the outside of the cable (8). The second end cover (4) is provided with a cable hole (43). The cable (8) passes through the cable hole (43) and is electrically connected to the circuit board (21). The wire plug (81) is provided with a snap-fit ​​groove (811). The wire plug (81) is housed in the cable hole (43) and snaps against the second end cover (4) through the snap-fit ​​groove (811) to seal the connection between the cable (8) and the second end cover (4).

10. A method for sealing a power supply box, for filling the power supply box (100) according to any one of claims 1-9 with sealant, characterized in that, include: S1. Connect the second end cap (4) to one end of the main body (1), and install the circuit board (21) and the partition (5) inside the main body (1); S2. Place the power box (100) vertically and position the second end cap (4) below the main body (1). Pour the sealant into the main body (1) from top to bottom until the sealant fills the lower end of the partition (5). S3, Curing the sealant filled in step S2; S4. Place the power box (100) vertically and position the second end cap (4) below the main body (1). Pour sealant between the main body (1) and the partition (5) again until it is full. Install the first end cap (3) to the main body (1) and make the end hole (33) communicate with the receiving cavity (51). S5. Curing the sealant filled in step S4 to seal the first end cap (3), the second end cap (4), and the main body (1).

11. The sealing method for the power supply box according to claim 10, characterized in that, In step S2, the partition (5) has a marking part (53) on the side near the second end cap (4), and sealant is filled into the marking part (53) to seal the lower end of the partition (5).

12. The sealing method for the power supply box according to claim 10, characterized in that, In step S4, the sealant is placed between the partition (5) and the main body (1), and no sealant flows into the receiving cavity (51).

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