A waterproof and dustproof power fuse box

Abstract

The present invention relates to the technical field of circuit protection devices, and in particular to a waterproof and dustproof power supply fuse box, comprising a bottom box, a box cover and a wiring terminal, one side of the box cover is hinged with the bottom box, a sealing gasket is arranged on the top of the bottom box, a pressure ring is arranged on the inner side of the box cover, and the pressure ring squeezes the sealing gasket along the circumference of the sealing gasket when the box cover is buckled with the bottom box to achieve sealing cooperation between the pressure ring and the sealing gasket, a swingable lock buckle is arranged on the box cover, a lock hook and a lock plate are arranged on the lock buckle, a lock block is arranged at a position corresponding to the lock buckle on the outer side of the bottom box, the lock buckle swings toward the lock block after the box cover is buckled on the bottom box, and the lock hook and the lock block are hooked and matched, an annular sliding ring is arranged on the outer sliding sleeve of the box cover, a lock tongue is arranged on the sliding ring, and the sliding ring slides toward the bottom box after the lock hook and the lock block are hooked and matched, so that the lock tongue presses down the lock plate to prevent the lock buckle from opening. The present invention solves the problems in the prior art that the fuse box is inconvenient to open and the sealing effect is affected by uneven circumferential compression of the sealing gasket.

Description

Technical Field

[0001] The invention relates to the technical field of circuit protection devices, and in particular to a waterproof and dustproof power supply fuse box. Background Art

[0002] As a common power electronic component, the power fuse box is an overcurrent protection switch. Its main function is to control the power consumption of the circuit. When in use, it is connected to the circuit. When the current is too large, the circuit will be disconnected, thereby protecting and connecting the wires.

[0003] For the power fuse box as a power electronic component, in order to ensure the safety of electricity use, the power fuse box needs to have certain waterproof and dustproof functions. The existing power electronic component power fuse box usually includes a bottom box and a box cover. The bottom box is fixed with wiring terminals for wiring. The box cover is fixed to the bottom box by fastening screws, and then the wiring terminals are sealed in the bottom box. In the manufacturing process of the existing power electronic component power fuse box, the technical problem of poor sealing may occur, and the connection and opening method of the existing power electronic component power fuse box also makes it inconvenient to open and use the power electronic component power fuse box. At the same time, due to the interval distribution of the fastening screws, the compression force of the sealing gasket between the bottom box and the box cover in the circumferential direction is inconsistent, resulting in the sealing gasket near the fastening screw position The part is under great pressure and has good sealing, while the part far from the fastening screw position is under less pressure and has poor sealing. That is to say, the compression amount of the sealing gasket in a circumferential circle is uneven, which affects the sealing effect. In order to solve the above problems existing in the existing power electronic component power fuse box, a new waterproof and dustproof power fuse box is designed. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention proposes a waterproof and dustproof power fuse box to solve the technical problems in the prior art that the power fuse box of power electronic components is inconvenient to connect and open, and the circumferential compression of the sealing gasket is uneven, which affects the sealing effect.

[0005] A waterproof and dustproof power fuse box of the present invention adopts the following technical solution:

[0006] A waterproof and dustproof power supply fuse box comprises a bottom box, a box cover and a wiring terminal arranged on the bottom box, one side of the box cover is hinged with the bottom box, the top of the bottom box is provided with an annular sealing gasket, the sealing gasket is located at the periphery of the wiring terminal, the inner side of the box cover is provided with an annular pressing ring corresponding to the sealing gasket, the pressing ring presses the sealing gasket along the circumference of the sealing gasket when the box cover is buckled with the bottom box, so as to achieve the sealing cooperation between the pressing ring and the sealing gasket, the box cover is provided with a swingable lock buckle on the side away from the hinged position with the bottom box, the lock buckle is provided with a lock hook and a lock sheet at one end away from the box cover, a lock block is provided at the outer side of the bottom box at a position corresponding to the lock buckle, the lock buckle swings towards the lock block after the box cover is buckled on the bottom box, and the lock hook is hooked and matched with the lock block, an annular sliding ring is provided on the outer peripheral sliding sleeve of the box cover, and a lock tongue is provided on the sliding ring, the sliding ring slides towards the bottom box after the lock hook is hooked and matched with the lock block, so that the lock tongue presses down the lock sheet to prevent the lock buckle from opening.

[0007] Furthermore, a raised hinge portion is provided on one side of the box cover, a groove for accommodating the hinge portion is provided on one side of the base box, a hinge hole is provided in the hinge portion, a hinge shaft is passed through the hinge hole, and the hinge portion is hinged in the groove through the hinge shaft to realize the hinge connection between one side of the box cover and the base box.

[0008] Furthermore, the hinged portion includes a connecting portion integrally formed with the box cover, and a deforming portion arranged in the connecting portion and capable of elastic deformation, the hinge hole is provided in the deforming portion, and when the box cover is buckled and connected with the base box, the side of the box cover hinged to the base box moves toward a side away from the base box, and the deforming portion is squeezed by the hinge shaft and elastically deformed.

[0009] Furthermore, the width dimension of the cross section of the hinge hole decreases from one end to the other end, so that the hinge hole is in a teardrop shape, and the end of the hinge hole with a smaller width dimension faces the bottom box, and the end with a larger width dimension faces the box cover.

[0010] Furthermore, two inclined support columns are arranged on the side of the box cover, one end of the lock buckle is hinged between the two support columns, and the lock buckle is connected to the box cover through the two support columns.

[0011] Furthermore, the lock includes a square frame, which includes a horizontal frame located between two supporting columns and hinged to the two supporting columns respectively, and also includes two cantilevers respectively connected to both ends of the horizontal frame. The lock hook and the lock plate are connected between the two cantilevers and are located at one end of the two cantilevers away from the horizontal frame.

[0012] Furthermore, a first inclined block extending along the circumference of the bottom box is provided on the side of the bottom box, the first inclined block has a first inclined surface facing the box cover, and the slip ring is provided with a second inclined surface consistent with the inclination direction of the first inclined surface, and the first inclined surface and the second inclined surface are tightly fitted after the slip ring slides into place toward the bottom box.

[0013] Furthermore, a second inclined block extending along the circumference of the box cover is provided on the side surface of the box cover, the second inclined block has a third inclined surface facing away from the bottom box, and a fourth inclined surface consistent with the inclination direction of the third inclined surface is provided on the inner side surface of the slip ring, and the third inclined surface and the fourth inclined surface are tightly fitted after the slip ring slides into place toward the bottom box.

[0014] Furthermore, the bottom box includes a box body located at the bottom and a top cover connected to the top of the box body, the wiring terminals are fixed on the top surface of the top cover, and the box body and the top cover enclose a wiring cavity for wiring.

[0015] Furthermore, the locking block is arranged on a side surface of the box body, and the first inclined block is arranged on a side surface of the top cover.

[0016] The invention has the following beneficial effects: a waterproof and dustproof power fuse box of the invention, as a power electronic component, is hingedly connected to the box cover and the bottom box, and a pressure ring is arranged on the box cover to squeeze the sealing gasket on the bottom box. When the box cover and the bottom box are buckled, the pressure ring squeezes the sealing gasket along the circumference of the sealing gasket to achieve a circumferential seal between the box cover and the bottom box, thereby providing waterproof and dustproof protection for the wiring terminals located in the box cover and the bottom box. After the box cover and the bottom box are buckled, the sealing gasket is elastically deformed after being squeezed by the pressure ring, and the box cover is subjected to the elastic force of the sealing gasket. The invention utilizes the lock buckle arranged on the box cover to cooperate with the lock block on the bottom box, so that the lock hook on the lock buckle and the lock block are hooked together, so that the box cover and the bottom box can be tightly buckled together to prevent the box cover from opening. After the invention is arranged in this way, the sealing gasket is uniformly squeezed by the pressure ring in a circumferential circle, so that the circumferential deformation of the sealing gasket is uniform, and the sealing performance at all places is ensured to be good. Moreover, compared with the prior art, the opening method of the box cover of the invention makes the power fuse box more convenient to open and close. At the same time, the present invention can ensure that the lock buckle will not be opened accidentally or opened by mistake through the cooperation of the sliding ring and the locking plate, thereby ensuring safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

[0018] Figure 1 A three-dimensional schematic diagram of an embodiment of a waterproof and dustproof power fuse box of the present invention (box cover closed);

[0019] Figure 2 A three-dimensional schematic diagram of an embodiment of a waterproof and dustproof power fuse box of the present invention (with the box cover opened);

[0020] Figure 3 A top view of an embodiment of a waterproof and dustproof power fuse box of the present invention (with the box cover opened);

[0021] Figure 4 for Figure 3 AA cross-sectional diagram;

[0022] Figure 5 A top view of an embodiment of a waterproof and dustproof power fuse box of the present invention (with the box cover closed);

[0023] Figure 6 for Figure 5 Schematic diagram of the cross section in the middle BB direction;

[0024] Figure 7 for Figure 4 A magnified schematic diagram of the local C in the middle;

[0025] Figure 8 for Figure 6 A magnified schematic diagram of the local D in the middle;

[0026] In the figure: 100, box cover; 101, lock buckle; 102, support column; 103, pressure ring; 104, second oblique block; 105, hinge part; 106, lock hook; 107, lock plate; 108, deformation part; 109, hinge hole; 201, slide ring; 202, lock tongue; 300, bottom box; 301, box body; 302, lock block; 401, sealing gasket; 402, wiring terminal; 403, top cover; 404, fixing bolt; 405, first oblique block; 406, hinge axis. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] An embodiment of a waterproof and dustproof power fuse box of the present invention is as follows Figures 1 to 8As shown, the waterproof and dustproof power fuse box includes a bottom box 300, a box cover 100, and a connection terminal 402 arranged on the bottom box 300. In this embodiment, the bottom box 300 and the box cover 100 are both square structures. One side of the box cover 100 is hinged with the bottom box 300. Specifically, one side of the box cover 100 is provided with a raised hinge part 105, one side of the bottom box 300 is provided with a groove for accommodating the hinge part 105, a hinge hole 109 is opened in the hinge part 105, and a hinge shaft 406 is installed in the hinge hole 109. The hinge part 105 is hinged in the groove through the hinge shaft 406 to realize the hinge connection between one side of the box cover 100 and the bottom box 300.

[0029] In this embodiment, the bottom box 300 includes a box body 301 located at the bottom and a top cover 403 connected to the top of the box body 301, the wiring terminal 402 is fixed on the top surface of the top cover 403, the box body 301 and the top cover 403 enclose a wiring cavity for wiring, and the bottom of the box body 301 is provided with a wire hole for the power supply line to pass through. In this embodiment, the top cover 403 and the box body 301 are connected together by fixing bolts 404 located at four corners. A sealing ring groove is provided at one end of the top cover 403 facing the box body 301, and one end of the shell facing the top cover 403 is inserted into the sealing ring groove. After the top cover 403 and the box body 301 are connected by the fixing bolts 404, the sealing at the connection position of the box body 301 and the top cover 403 is achieved.

[0030] The top of the bottom box 300 is provided with an annular sealing gasket 401, that is, the sealing gasket 401 is arranged on the top surface of the top cover 403. The sealing gasket 401 is square, adapted to the shape of the bottom box 300, and the sealing gasket 401 is located at the periphery of the connecting terminal 402. The inner side of the box cover 100 is provided with an annular pressure ring 103 corresponding to the sealing gasket 401, and the pressure ring 103 extends from the inner side of the box cover 100 toward the bottom box 300 to form a square cylindrical structure. When the box cover 100 and the bottom box 300 are buckled, the pressure ring 103 squeezes the sealing gasket 401 along the circumference of the sealing gasket 401 to achieve circumferential sealing cooperation between the pressure ring 103 and the sealing gasket 401. A swingable lock buckle 101 is provided on one side of the box cover 100 away from the hinged position with the bottom box 300, a lock hook 106 and a lock sheet 107 are provided on one end of the lock buckle 101 away from the box cover 100, a lock block 302 is provided on the outer side of the bottom box 300 at a position corresponding to the lock buckle 101, and the lock buckle 101 swings toward the lock block 302 after the box cover 100 is buckled on the bottom box 300, so that the lock hook 106 is hooked and matched with the lock block 302. Since the box cover 100 is always subjected to the elastic force of the sealing gasket 401, in order to prevent the lock buckle 101 from being opened accidentally or opened by misoperation, the outer sliding sleeve of the box cover 100 is provided with an annular sliding ring 201, and the sliding ring 201 is provided with a locking tongue 202. After the locking hook 106 is hooked and engaged with the locking block 302, the sliding ring 201 slides toward the bottom box 300, so that the locking tongue 202 presses down the locking plate 107 to prevent the lock buckle 101 from opening.

[0031] In this embodiment, two inclined support columns 102 are arranged on the side of the box cover 100, one end of the lock buckle 101 is hinged between the two support columns 102, and the lock buckle 101 is connected to the box cover 100 through the two inclined support columns 102, so that the swing range of the lock buckle 101 can be increased, and after the lock buckle 101 cooperates with the locking block 302, the lock buckle 101 is parallel to the side of the bottom box 300 and the top cover 403, so as to prevent the lock buckle 101 from being accidentally opened by the elastic force of the sealing gasket 401. The lock buckle 101 includes a square frame, the frame includes a horizontal frame located between the two support columns 102 and hinged to the two support columns 102 respectively, and also includes two cantilevers respectively connected to the two ends of the horizontal frame, the lock hook 106 and the lock plate 107 are connected between the two cantilevers and are located at one end of the two cantilevers away from the horizontal frame. In this embodiment, the cantilever is a flat plate structure, and the plate surface of the flat plate is perpendicular to the swing axis of the lock buckle 101. This arrangement can improve the bending strength of the cantilever, prevent the cantilever from bending and deforming, and prevent the lock hook 106 from accidentally detaching after the lock tongue 202 presses down the lock plate 107.

[0032] In this embodiment, the hinged portion 105 includes a connecting portion integrally formed with the box cover 100, and a deformation portion 108 that is arranged in the connecting portion and can be elastically deformed. That is, the connecting portion and the box cover 100 are made of the same material, both of which are insulating plastic materials, and the connecting portion and the box cover 100 are integrally formed during molding, and the deformation portion 108 is a rubber material that is subsequently filled and fixed in the connecting portion and has elastic deformation capability. The hinge hole 109 is provided in the deformation portion 108, so that during the process of the box cover 100 and the base box 300 being fastened together, the portion of the pressure ring 103 on the box cover 100 close to the hinge portion 105 will first contact with the sealing gasket 401 and squeeze the sealing gasket 401. At this time, the position where the pressure ring 103 and the sealing gasket 401 first contact will form a fulcrum. Since the deformation portion 108 can undergo elastic deformation, the side of the box cover 100 hinged to the base box 300 will move toward the side away from the base box 300, and since the hinge shaft 406 is fixed in the groove of the base box 300, the hinge shaft 406 will squeeze the deformation portion 108, causing the deformation portion 108 to undergo elastic deformation. After the present invention is set in this way, since the side of the box cover 100 hinged with the bottom box 300 can move a certain distance relative to the hinge shaft 406 in the direction away from the bottom box 300, the compression amount of the pressure ring 103 on the sealing gasket 401 in the circumference of one circle can be more uniform. And after the deformation part 108 is deformed, a reverse force will be generated on the side of the box cover 100 where the hinge part 105 is set, on the one hand, the compression force between the pressure ring 103 and the sealing gasket 401 can be guaranteed, and on the other hand, at the moment of opening the lock buckle 101, the box cover 100 will bounce in the direction away from the bottom box 300 under the elastic force of the deformation part 108, which is convenient for the box cover 100 to open. Of course, in other embodiments, in order to achieve a more uniform compression amount of the sealing gasket 401 in the circumference of one circle, the deformation part 108 may not be set, but the hinge hole 109 may be set as a long hole, so that the side of the box cover 100 hinged with the bottom box 300 can move relative to the hinge shaft 406 in the direction away from the bottom box 300.

[0033] In this embodiment, the width of the cross section of the hinge hole 109 decreases from one end to the other end, so that the hinge hole 109 is in a teardrop shape, and the end of the hinge hole 109 with a smaller width is toward the bottom box 300, and the end with a larger width is toward the box cover 100. Compared with the circular hinge hole 109 that matches the shape of the hinge shaft 406, the teardrop-shaped hinge hole 109 in this embodiment can appropriately increase the amount of movement of the hinged side of the box cover 100 and the bottom box 300.

[0034] In this embodiment, in order to further improve the waterproof and dustproof effect between the box cover 100 and the bottom box 300, the side of the bottom box 300 is provided with a first inclined block 405 extending along the circumference of the bottom box 300, and the side of the box cover 100 is provided with a second inclined block 104 extending along the circumference of the box cover 100, that is, the first inclined block 405 and the second inclined block 104 extend around the side of the bottom box 300 and the box cover 100 respectively to form a closed annular structure. The first inclined block 405 has a first inclined surface facing the box cover 100, and the second inclined block 104 has a third inclined surface facing away from the bottom box 300. The slip ring 201 is provided with a second inclined surface in the same direction as the first inclined surface, and a fourth inclined surface in the same direction as the third inclined surface. The first inclined surface and the second inclined surface, the third inclined surface and the fourth inclined surface are tightly fitted after the slip ring 201 slides into position toward the bottom box 300. Since the first inclined block 405 and the second inclined block 104 are tightly fitted with the two ends of the slip ring 201 along the circumference of the bottom box 300, it is equivalent to forming annular seals on both sides of the mating position of the bottom box 300 and the box cover 100, thereby enhancing the waterproof and dustproof effect between the bottom box 300 and the box cover 100.

[0035] In this embodiment, the locking block 302 is disposed on the side of the box body 301 , and the first inclined block 405 is disposed on the side of the top cover 403 .

[0036] When a waterproof and dustproof power fuse box of the present invention is used, one end of the wire is first inserted from the wire hole at the bottom of the box body 301, and one end of the wire is conductively connected to the terminal 402 on the top cover 403. Then the top cover 403 and the box body 301 are tightly fixed by the fixing bolt 404. Since the sealing groove is provided at the matching position of the top cover 403 and the box body 301, and the top cover 403 and the box body 301 do not need to be opened frequently, the sealing between the top cover 403 and the box body 301 can be ensured. After the wire connection is completed, the box cover 100 is closed toward the bottom box 300, so that the box cover 100 and the bottom box 300 are buckled together. After closing the box cover 100, it is necessary to appropriately press the box cover 100 so that the pressure ring 103 squeezes the sealing pad 401, and then buckle the lock buckle 101 so that the lock hook 106 on the lock buckle 101 is hooked and matched with the lock block 302, so as to achieve the sealing buckle between the box cover 100 and the bottom box 300. Then, the sliding ring 201 is pushed toward the bottom box 300, so that the locking tongue 202 on the sliding ring 201 presses down the locking piece 107 on the locking buckle 101, and at the same time, the two inclined surfaces on the sliding ring 201 are closely fitted with the inclined surfaces on the first inclined block 405 and the second inclined block 104, respectively, so as to achieve sealing at the matching position of the box cover 100 and the bottom box 300. When it is necessary to open the box cover 100, the sliding ring 201 is first pushed in the opposite direction to release the sliding ring 210 from the locking piece 107, and then the locking buckle 101 is opened. Since the deformation part 108 and the sealing gasket are both elastic, the box cover 100 will be driven to spring open, so that the box cover 100 is convenient to open.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof and dustproof power fuse box, comprising a base box (300), a box cover (100), and a connection terminal (402) arranged on the base box (300), characterized in that: One side of the box cover (100) is hinged to the bottom box (300); an annular sealing gasket (401) is provided on the top of the bottom box (300); the sealing gasket (401) is located on the periphery of the connection terminal (402); an annular pressing ring (103) corresponding to the sealing gasket (401) is provided on the inner side of the box cover (100); the pressing ring (103) is pressed along the circumference of the sealing gasket (401) when the box cover (100) and the bottom box (300) are buckled together. The sealing gasket (401) is provided to achieve sealing cooperation between the pressure ring (103) and the sealing gasket (401); a swingable lock buckle (101) is provided on a side of the box cover (100) away from the hinged position with the bottom box (300); a locking hook (106) and a locking sheet (107) are provided on an end of the lock buckle (101) away from the box cover (100); a locking block (302) is provided on the outer side of the bottom box (300) at a position corresponding to the lock buckle (101); and the lock buckle (101) is provided to the bottom box (300). ) After the box cover (100) is buckled onto the bottom box (300), it swings toward the locking block (302), and the locking hook (106) is hooked and matched with the locking block (302); the outer sliding sleeve of the box cover (100) is provided with an annular sliding ring (201), and the sliding ring (201) is provided with a locking tongue (202); after the locking hook (106) is hooked and matched with the locking block (302), the sliding ring (201) slides toward the bottom box (300), so that the locking tongue ( 202) presses down the locking plate (107) to prevent the lock buckle (101) from opening, the side of the bottom box (300) is provided with a first inclined block (405) extending along the circumference of the bottom box (300), the first inclined block (405) has a first inclined surface facing the box cover (100), the slip ring (201) is provided with a second inclined surface in the same inclination direction as the first inclined surface, the first inclined surface and the second inclined surface are tightly fitted after the slip ring (201) slides into place toward the bottom box (300).

2. The waterproof and dustproof power fuse box according to claim 1, characterized in that: A raised hinge portion (105) is provided on one side of the box cover (100), a groove for accommodating the hinge portion (105) is provided on one side of the base box (300), a hinge hole (109) is provided in the hinge portion (105), a hinge shaft (406) is passed through the hinge hole (109), and the hinge portion (105) is hinged in the groove via the hinge shaft (406) to achieve hinged connection between one side of the box cover (100) and the base box (300).

3. The waterproof and dustproof power fuse box according to claim 2, characterized in that: The hinged portion (105) comprises a connecting portion integrally formed with the box cover (100), and a deforming portion (108) arranged in the connecting portion and capable of elastic deformation, the hinge hole (109) being provided in the deforming portion (108), and when the box cover (100) and the base box (300) are snap-fitted and connected, the side of the box cover (100) hinged to the base box (300) moves toward a side away from the base box (300), and the deforming portion (108) is squeezed by the hinge shaft (406) and elastically deforms.

4. The waterproof and dustproof power fuse box according to claim 3, characterized in that: The width dimension of the cross section of the hinge hole (109) decreases from one end to the other end, so that the hinge hole (109) is in a teardrop shape, and the end of the hinge hole (109) with a smaller width dimension faces the bottom box (300), and the end with a larger width dimension faces the box cover (100).

5. The waterproof and dustproof power fuse box according to claim 4, characterized in that: Two inclined support columns are arranged on the side of the box cover (100), one end of the lock buckle (101) is hinged between the two support columns, and the lock buckle (101) is connected to the box cover (100) via the two support columns.

6. The waterproof and dustproof power fuse box according to claim 5, characterized in that: The lock buckle (101) comprises a square frame, the frame comprises a cross frame located between two support columns and respectively hinged to the two support columns, and also comprises two cantilevers respectively connected to the two ends of the cross frame, the lock hook (106) and the lock plate (107) are connected between the two cantilevers and are located at one end of the two cantilevers away from the cross frame.

7. The waterproof and dustproof power fuse box according to claim 6, characterized in that: A second inclined block (104) extending along the circumference of the box cover (100) is provided on the side surface of the box cover (100), the second inclined block (104) having a third inclined surface facing away from the bottom box (300), a fourth inclined surface having the same inclination direction as the third inclined surface is provided on the inner side surface of the slip ring (201), the third inclined surface and the fourth inclined surface are tightly fitted after the slip ring (201) slides into position towards the bottom box (300).

8. The waterproof and dustproof power fuse box according to claim 7, characterized in that: The bottom box (300) comprises a box body (301) located at the bottom and a top cover (403) connected to the top of the box body (301); the wiring terminal (402) is fixed on the top surface of the top cover (403); the box body (301) and the top cover (403) enclose a wiring cavity for wiring.

9. The waterproof and dustproof power fuse box according to claim 8, characterized in that: The locking block (302) is arranged on a side surface of the box body (301), and the first inclined block (405) is arranged on a side surface of the top cover (403).

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