Charging plug with fusing function

Abstract

The utility model discloses a charging plug with a fusing function. The charging plug comprises a bottom shell with an open inner cavity structure, a copper pin mounting plate and a fuse groove are arranged in the bottom shell, copper pins are arranged on the copper pin mounting plate, a copper pin through hole is formed in the bottom of the bottom shell, and the copper pin mounting plate is connected with the bottom shell through a buckle; an opening of the fuse groove faces the bottom of the bottom shell, a fuse is arranged in the fuse groove, is clamped and fixed by a first spring clip and a second spring clip, and is connected in series with a live wire copper pin and a live wire through the first spring clip and the second spring clip; the fuse groove is provided with a fuse groove cover plate, the fuse groove cover plate is connected to a groove opening of the fuse groove through a buckle, and a waterproof ring is arranged between the fuse groove cover plate and the fuse groove; a pressure cover is arranged in the bottom shell and connected with the bottom shell through a pressure cover buckle. According to the utility model, the molding precision of a shell injection molding process is effectively improved, reliable operation can be maintained under severe working conditions, and the applicability of equipment in outdoor and industrial environments is remarkably improved while short circuit / overload dual protection is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a charging plug with a fuse function. BACKGROUND

[0002] In people's daily life, the use of plug is very extensive, and various large and small charging equipment needs to be connected to the power through the plug, and basically the plug is used in the place where the charging equipment is used, so the use of the plug has spread to every corner of our life, and people's life cannot do without the charging power line, so the reasonable design of the charging plug has become a problem that people must overcome, and the demand for charging equipment is increasing day by day at the present stage, since the charging equipment needs to be connected to the power supply through the plug, the heat generated during the connection of the power is more, and there is a great safety hazard, so the safety use of the charging equipment needs some necessary monitoring means, and the design of the national standard charging plug with the fuse function and convenient maintenance is very important. SUMMARY

[0003] The utility model discloses a charging plug with a fuse function and convenient maintenance.

[0004] In order to achieve the above technical purpose, the technical scheme of the utility model is:

[0005] A charging plug with a fuse function, comprising a bottom shell with an open inner cavity structure, a copper foot mounting plate and a fuse slot are arranged in the bottom shell, the copper foot mounting plate is provided with a copper foot, the copper foot is connected with an electric wire, the bottom shell is provided with a copper foot through hole for the copper foot to pass through, the copper foot is located in the copper foot through hole, and the copper foot mounting plate is connected with the bottom shell through buckles; The opening of the fuse slot faces the bottom of the bottom shell, a fuse is arranged in the fuse slot, the fuse is clamped and fixed by a first spring clamp and a second spring clamp, and the fuse is connected with a live copper foot and a live wire in series through the first spring clamp and the second spring clamp; The fuse slot is provided with a fuse slot cover plate, the fuse slot cover plate is connected at the slot opening of the fuse slot through buckles, and a waterproof ring is arranged between the fuse slot cover plate and the fuse slot; A pressure cover is arranged in the bottom shell, and the pressure cover is connected with the bottom shell through a pressure cover buckle. The movable parts in the bottom shell are pressed tightly through the pressure cover, so that the injection of the shell in the bottom shell is facilitated.

[0006] The bottom shell is injection molded with a shell.

[0007] Preferably, the fuse slot is provided with a first fixed spring plate and a second fixed spring plate, the first fixed spring plate is connected with the first spring clamp, the second fixed spring plate is connected with the second spring clamp, the first fixed spring plate is connected with the live copper foot through a wire, and the second fixed spring plate is connected with the live wire.

[0008] As preferred, the first and second fixed elastic sheets are arranged on the top of the fuse slot, which facilitates the welding of the electric wire.

[0009] As preferred, the pressure cover buckle comprises a pressure cover clamping hook arranged on the pressure cover and a pressure cover clamping groove matched with the pressure cover clamping hook and arranged on the side wall of the bottom shell.

[0010] As preferred, the pressure cover clamping groove comprises a first layer pressure cover clamping groove and a second layer pressure cover clamping groove, which enables the pressure cover to be connected in the inner shell at different depths.

[0011] As preferred, the fuse slot is provided with a waterproof ring sealing groove, and the waterproof ring is arranged on the waterproof ring sealing groove.

[0012] The buckle comprises a clamping hook and a clamping groove matched with the clamping hook, and the clamping hook is clamped into the clamping groove to enable the two components to be clamped together. For example, the clamping hook is arranged on the bottom shell, and the clamping groove is arranged on the copper foot mounting plate, and the clamping hook and the clamping groove enable the copper foot mounting plate to be clamped on the bottom shell.

[0013] The utility model discloses a buckle type connecting structure is used to realize the modular assembly of copper foot mounting plate and pressure cover in the bottom shell, and the internal components are constrained through the clamping positioning mechanism, the predetermined spatial positional relationship of each functional unit is ensured in the injection molding process, the forming precision of the shell injection molding process is effectively improved, the plug overall structure has higher mechanical stability and environmental resistance, and the impact resistance is obviously improved compared with the traditional structure. In the aspect of electrical protection, the plug-in hot-melt fuse protection element is integrated in the firewire circuit, the element adopts axial lead packaging and is provided with a quick-release mounting seat, and the user can replace the element quickly without damaging the cable insulation layer. The fuse slot is provided with an annular sealing groove structure, the silicon rubber waterproof ring is assembled through interference fit, and a waterproof barrier is formed. The composite protection design enables the plug to operate reliably under harsh working conditions, realizes double protection of short circuit and overload, and significantly improves the applicability of the equipment in outdoor and industrial environments. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be explained in further detail in connection with the drawings and specific embodiments.

[0015] Figure 1 It is a first perspective structure explosion schematic view of the charging plug.

[0016] Figure 2 It is a second perspective structure explosion schematic view of the charging plug.

[0017] Figure 3 It is a bottom shell bottom structure schematic view.

[0018] Figure 4 The bottom shell is a schematic diagram of the internal structure.

[0019] Figure 5 The structure is a schematic diagram of the connection of the wire and the fuse on the bottom shell.

[0020] Figure 6 The structure is a schematic diagram of the connection of the sealing ring and the fuse cover plate on the bottom shell.

[0021] Figure 7 The finished product is a schematic diagram of the charging plug. DETAILED DESCRIPTION

[0022] As Figures 1-7 shown, a charging plug with a fuse function includes a bottom shell 5 with an open inner cavity structure, a copper foot mounting plate 3 and a fuse slot are arranged adjacent in the bottom shell 5, the fuse slot opening faces the bottom of the bottom shell 5, a fuse 7 is arranged in the fuse slot, the fuse 7 is clamped and fixed in the fuse slot by a first spring clamp 14 and a second spring clamp 15, a first fixed spring plate 11 and a second fixed spring plate 12 are arranged at the top of the fuse slot, the first fixed spring plate 12 is riveted and connected with the first spring clamp 14, the second fixed spring plate 12 is riveted and connected with the second spring clamp 15, the first fixed spring plate 11 is connected with the live copper foot through a wire, and the live wire of the wire 4 is welded with the second fixed spring plate 12.

[0023] The fuse slot is provided with a fuse slot cover plate 8, the fuse slot cover plate 8 is connected at the slot opening of the fuse slot through buckling, a waterproof ring sealing groove 16 is arranged at the slot opening of the fuse slot, a waterproof ring 6 is installed on the waterproof ring sealing groove 16, the fuse slot cover plate 8 presses the waterproof ring 6 tightly on the waterproof ring sealing groove 16, the waterproof ring 6 seals between the fuse slot cover plate 8 and the fuse slot, and waterproof is realized.

[0024] The buckle between the fuse slot cover plate 8 and the fuse slot includes a plurality of clamping grooves 17 on the fuse slot and a plurality of clamping hooks 13 on the fuse slot cover plate 8, the clamping hooks 13 and the clamping grooves 17 are used in cooperation, the clamping hooks 13 are respectively clamped in the clamping grooves 17, and the fuse slot cover plate 8 is clamped at the slot opening of the fuse slot.

[0025] The ground wire of the wire 4 is welded with the ground copper foot, the zero wire of the wire 4 is welded with the zero copper foot, the ground copper foot, the zero copper foot and the live copper foot are arranged on the copper foot mounting plate 3, the bottom of the bottom shell 5 is provided with a copper foot through hole for the copper foot to pass through, the copper foot is located in the copper foot through hole, and the copper foot mounting plate 3 is connected with the bottom shell 5 through buckling; the buckle between the copper foot mounting plate 3 and the bottom shell 5 includes a plurality of clamping hooks 19 on the bottom shell 5 and a plurality of clamping grooves 18 on the copper foot mounting plate 3, the clamping hooks 19 and the clamping grooves 18 are used in cooperation, the clamping hooks 19 are respectively clamped in the clamping grooves 18, and the copper foot mounting plate 3 is clamped in the bottom shell 5.

[0026] The bottom shell 5 is provided with a pressure cover 2, the pressure cover 2 is connected with the bottom shell 5 through a pressure cover buckle, the pressure cover buckle comprises a plurality of pressure cover buckles 9 and a plurality of pressure cover buckle grooves 10 matched with the pressure cover buckles 9, the pressure cover buckles 9 are arranged on the pressure cover 2, the pressure cover buckle grooves 10 are arranged on the side wall of the bottom shell 5, and the pressure cover buckles 9 are respectively buckled into the pressure cover buckle grooves 10, so that the pressure cover 2 is clamped in the bottom shell 5.

[0027] The pressure cover buckle groove 10 comprises a first layer pressure cover buckle groove and a second layer pressure cover buckle groove, the first layer pressure cover buckle groove and the second layer pressure cover buckle groove are arranged in sequence from top to bottom (different in height), and the pressure cover can be connected in the inner shell 5 at different depths through the first layer pressure cover buckle groove and the second layer pressure cover buckle groove.

[0028] The bottom shell 5 is injection molded with the shell 1.

[0029] The assembly method is as follows:

[0030] According to the design requirements, the copper feet on the copper foot mounting plate 3 are respectively crimped with corresponding zero ground wire poles in the electric wire 4, the fire wire copper feet are connected with the first fixed spring piece 11 through a wire, and the fire wire in the electric wire 4 is welded with the second fixed spring piece 12; after crimping, the clamping groove 18 of the copper foot mounting plate 3 is clamped with the clamping buckle 19 of the bottom shell 5. The positioning clamping buckle 9 is designed on the pressure cover 2, the clamping buckle is positioned and clamped with the positioning clamping groove 10 of the bottom shell 5. The inner side of the bottom shell 5 is provided with the first fixed spring piece 11, the second fixed spring piece 12, the first spring clamp 14, the second spring clamp 5, the waterproof ring sealing groove 16 and the fuse cover clamping groove 17. The fuse 7 is fixed through the first spring clamp 14 and the second spring clamp 15, and when the current is too large, the fuse can be melted to disconnect the current, and can be replaced. The rubber waterproof ring 6 is placed in the waterproof ring sealing groove 16, the fuse cover 8 is covered on the waterproof ring sealing groove 16, the cover clamping buckle 13 is clamped with the fuse cover clamping groove 17, and the waterproof effect is achieved. The product after assembly is injection molded with the plug shell 1. After injection molding, it is also necessary to detect whether the size is reasonable, whether the safety regulation size meets the requirements, and whether the appearance is good according to the drawing.

[0031] The above embodiment does not limit the utility model in any way, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A charging plug with a fuse function, comprising a bottom shell with an open inner cavity structure, characterized in that: The bottom shell is provided with a copper foot mounting plate and a fuse slot, the copper foot mounting plate is provided with a copper foot, the copper foot is connected with an electric wire, the bottom shell is provided with a copper foot through hole at the bottom, the copper foot is located in the copper foot through hole, and the copper foot mounting plate is connected with the bottom shell through buckling.

2. The charging plug with a fuse function according to claim 1, characterized in that: The bottom shell is provided with a copper foot mounting plate and a fuse slot, the copper foot mounting plate is provided with a copper foot, the copper foot is connected with an electric wire, the bottom shell is provided with a copper foot through hole at the bottom, the copper foot is located in the copper foot through hole, and the copper foot mounting plate is connected with the bottom shell through buckling.

3. The charging plug with a fuse function according to claim 1, characterized in that: The fuse slot is provided with a first fixed spring sheet and a second fixed spring sheet, the first fixed spring sheet is connected with the first spring clamp, the second fixed spring sheet is connected with the second spring clamp, the first fixed spring sheet is connected with the copper foot through a wire, and the second fixed spring sheet is connected with the copper wire.

4. The charging plug with a fuse function according to claim 3, characterized in that: The first fixed spring sheet and the second fixed spring sheet are arranged at the top of the fuse slot.

5. The charging plug with a fuse function according to claim 1, characterized in that: The pressure cover buckle includes a pressure cover clamping hook and a pressure cover clamping groove matched with the pressure cover clamping hook, the pressure cover clamping hook is arranged on the pressure cover, and the pressure cover clamping groove is arranged on the side wall of the bottom shell.

6. The charging plug with a fuse function according to claim 5, characterized in that: The pressure cover clamping groove includes a first layer pressure cover clamping groove and a second layer pressure cover clamping groove.

7. The charging plug with a fuse function according to claim 1, characterized in that: The fuse slot is provided with a waterproof ring sealing groove, and the waterproof ring is installed on the waterproof ring sealing groove.

8. The charging plug with a fuse function according to claim 1, characterized in that: The buckle includes a clamping hook and a clamping groove matched with the clamping hook.

Images