Electric connection box

Abstract

The utility model discloses an electric connection box, which comprises a box body and an electrical assembly, and the electrical assembly is arranged in the box body. The box body is formed by splicing a top cover and a base, a wire inlet hole is formed in one end of the box body, and a receding hole is formed in the other end of the box body. The electrical assembly comprises an electric wire connecting terminal and an electric connector, one side, close to the wire inlet hole, of the electric wire connecting terminal is a wiring end opposite to the wire inlet hole, and one side, opposite to the electric wire connecting terminal, of the electric connector is a load plugging end and is opposite to the abdicating hole or extends out of the box body from the abdicating hole. And the load plugging end is used for plugging a load electric connector outside the electric connection box, so that the installation and maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of wire material installation equipment, in particular to an electric connection box. Background Art

[0002] Electrical connections, especially those used in the lighting installation industry, are emerging with the use of various quick-install electrical connectors or junction boxes, which allow electricians to pre-lay power lines and connect the power lines to the quick-install electrical connectors or junction boxes, and then quickly connect a loaded electrical connector to the quick-install electrical connector or junction box that has the power lines connected. This installation method is more convenient and easy to maintain and disassemble.

[0003] Utility model patent CN202495590U introduces an electrical connector and an electrical connector assembly, providing an electrical connector suitable for connecting at least one cable to another cable, including a first component and a second component, the first component having a plurality of elastic cable clamps integral therewith, so that the first cable can be pressed between the clamps during use, and the clamps then clamp the first cable in an appropriate position, the second component is assembled on the first component to provide a housing for the first cable, the first and second components are locked together by at least one easy-to-release device, and also have a connecting device to connect the electrical connector to a second electrical connector encapsulating another cable, thereby connecting the first cable to the other cable. However, the cover of the first component is fixed to the base by screws, and after the cover is disassembled, it is separated from the first component and is no longer connected, and it is easy to lose during installation and maintenance.

[0004] Another prior art utility patent CN208767743U introduces a quick-install junction box, including a wire pressing plate, a terminal block, and a box body with a receiving cavity formed by an upper shell and a lower shell. One end of the lower shell is rotatably connected to the upper shell through a rotating connection mechanism, and the other end of the lower shell is buckled with the upper shell through a buckle mechanism. The upper and lower shells are kept together during the installation process. However, it is difficult to release the upper and lower shells after buckling, and tools are required to loosen the latches on both sides of the lower shell. In addition, the input and output ends of the box body need to be directly installed with wires, which slows down the installation speed and increases the overall installation difficulty. Utility Model Content

[0005] The utility model aims to provide an electrical connection box to meet the needs of modern electrical connection, especially the needs of fast installation and wiring in the lighting installation industry.

[0006] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0007] An electrical connection box comprises a box body and an electrical component, wherein the electrical component is installed in the box body;

[0008] The box body comprises a top cover and a base, one end of the top cover is hinged to the base, and the other end is buckled to the base through a buckle structure, one end of the box body is provided with a wire entry hole, and the other end is provided with a clearance hole;

[0009] The electrical component includes a wire connection terminal and an electrical connector, the wire connection terminal is electrically connected to the electrical connector, a side of the wire connection terminal close to the wire entry hole is a wiring terminal opposite to the wire entry hole, a side of the electrical connector facing away from the wire connection terminal is a load plug-in terminal and is opposite to the clearance hole or extends out of the box body from the clearance hole, and the load plug-in terminal is used to plug into the load electrical connector outside the electrical connection box.

[0010] Furthermore, the buckling structure includes at least one multi-tooth hook body, which includes an elastic connecting plate and a plurality of transversely arranged latching teeth located on the outer side of the elastic connecting plate. The elastic connecting plate of the multi-tooth hook body is connected to the top cover, and at least one through hole is provided on the base. The multi-tooth hook body corresponds to the through hole, and the buckling connection between the top cover and the base is achieved by latching the latching teeth on the bottom surface of the side wall of the through hole.

[0011] Furthermore, the top cover includes a quadrilateral top plate and a left side wall, a right side wall and a front side wall respectively extending downward from the left, right and front edges of the top plate, and the base includes a horizontal quadrilateral bottom plate and four side walls, front, back, left and right, extending upward from the edges of the bottom plate.

[0012] Furthermore, the left and right side walls of the top cover are provided with hinge shafts protruding outward at the end away from the wire entry hole, and the left and right side walls of the base are provided with hinge holes on the inner side of the end away from the wire entry hole. The two hinge shafts match the two hinge holes, and the top cover can be opened relative to the base or closed on the base with the hinge shaft as the center.

[0013] Furthermore, at least one protrusion is provided on the inner side of the left and right side walls of the base away from the wire entry hole. When the top cover is flipped open to the point where the bottom surfaces of the left and right walls of the top cover are placed on the protrusion on the same side, the protrusion prevents the top cover from closing, so that it remains in a predetermined flipped state.

[0014] Furthermore, there are two multi-tooth hook bodies, and the elastic connecting plates of the two multi-tooth hook bodies are respectively integrally formed with the left and right walls of the top cover. A plurality of ribs are provided on the inner sides of the left and right walls of the top cover, and the ribs are connected to the top plate of the top cover.

[0015] Furthermore, the two through holes are opened on the bottom plate.

[0016] Furthermore, at least one wire clamp group is provided on the base, and the wire clamp group is located between the wire entry hole and the electrical component. Each wire clamp group includes two vertical tooth surfaces arranged at intervals, each tooth surface is provided with a plurality of vertical locking teeth, and the two tooth surfaces are opposite to each other.

[0017] Furthermore, an upper tooth row and a lower tooth row are respectively provided on the upper and lower sides of the wire entry hole, the upper tooth row is provided on the top cover, and the lower tooth row is provided on the base, and the upper tooth row and the lower tooth row are spaced apart from each other.

[0018] Furthermore, the top cover of the electrical connection box is made of transparent or translucent plastic by injection molding.

[0019] The utility model has the following beneficial effects:

[0020] One end of the electrical connection box is connected to the power supply line, and the other end is directly plugged into the external load electrical connector, so the electrical connection box can be quickly connected to the load electrical connector to improve maintenance efficiency.

[0021] The electrical connection box uses a printed circuit board to assemble the butt wire connection terminals and electrical connectors, saving assembly costs on the production line.

[0022] The multi-position wire connection terminals in the electrical connection box are composed of multiple groups of identical wiring terminals. The related wiring terminals are connected in parallel with each other through external docking to form the function and effect of the power loop output configuration, thereby saving on-site installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a docking circuit diagram of an electric connection box and a load electric connector with a load that matches it in the prior art;

[0024] Figure 2 It is a docking circuit diagram of another electrical connection box and a load electrical connector with a load that matches the electrical connection box in the prior art;

[0025] Figure 3 It is a docking circuit diagram of an electric connection box of an embodiment of the utility model and a load electric connector with a load that matches the electric connection box;

[0026] Figure 4 It is a schematic diagram of a load electrical connector connected to a downlight according to an embodiment of the utility model;

[0027] Figure 5 is an exploded view of an electrical connection box according to an embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram showing that a protrusion near a hinge axis on the left side wall of the base of the electrical connection box of the embodiment of the utility model supports the bottom surface of the left side wall of the top cover so that the top cover remains in an open state;

[0029] Figure 7 It is a three-dimensional schematic diagram of the top cover and the base of the electrical connection box of the embodiment of the utility model in a closed state;

[0030] Figure 8 It is a front view of the electrical connection box of the embodiment of the utility model;

[0031] Fig. 9 It is a rear view of the electrical connection box of the embodiment of the utility model;

[0032] Fig.10 It is a right side view of the electrical connection box of the embodiment of the utility model;

[0033] Fig.11 It is a bottom view of the electrical connection box according to the embodiment of the utility model. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] Figure 1 It is a docking circuit diagram of a first electrical connection box 101 with a power supply cable and a first load component 102 matched therewith in the prior art. The first load component includes a first load 1m (such as an LED lighting fixture), a first load electrical connector 1j and a first connecting wire 1k. The power supply cable 1a is a set of multi-core AC power supply wires, and its core wires 1b are installed by electricians on the first multi-position wire connection terminal 1c in the first electrical connection box 101, and are connected to the corresponding wiring position of the first multi-pin electrical connector 1e of the first electrical connection box 101 through the first docking wire 1d. Because this is a power supply end, the first multi-pin electrical connector 1e generally uses a "female" connector. Each connection terminal, power supply wire, docking wire, and connector are installed in the first shell 1f of the first electrical connection box 101. The first load (e.g., lamp) 1m is connected to the first load electrical connector 1j via the first connecting wire 1k, and is matched and docked with the first multi-pin electrical connector 1e of the first electrical connection box 101. The first load electrical connector 1j is generally a "male" connector, and according to the requirements of safety regulations, a suitable two-pin (without ground wire) or three-pin (with ground wire) circuit is selected. The load end is generally equipped with a first load housing 1h to protect the first load electrical connector 1j and the first connecting wire 1k. Each component in the first load component 102 itself also needs to meet electrical safety requirements. Therefore, after the first load component 102 is initially wired and installed by an electrician, ordinary people can easily replace the first load component 102, saving time and money.

[0037] Reference Figure 2 , Figure 2 This is another quick installation wiring diagram of the prior art, with a second electrical connection box 201 with a control circuit and a second load assembly 202 that matches it. The second load assembly 202 includes a second load 2m, a second connection line 2k and a second load electrical connector 2j. Figure 1 Similarly, the power supply cable 1a is a set of multi-core commercial power supply wires, and its core wire 1b is installed by an electrician on the second multi-position wire connection terminal 2c in the second electrical connection box 201, and is connected to the corresponding wiring position of the second multi-pin electrical connector 2e of the second electrical connection box 201 through the second pair of wires 2d. The second multi-position wire connection terminal 2c has at least one additional connection terminal, which is connected to a control device such as a light switch or a dimmer through a control wire 2g. Each connection terminal, power supply wire, pair of wires, and connector are installed in the second housing 2f of the second electrical connection box 201. The second multi-position wire connection terminal 2c is connected to four corresponding wiring positions (L line, N line, ground line, and control line) of the second multi-pin electrical connector 2e of the second electrical connection box 201 through the second pair of wires 2d. The second load 2m is connected to the second load electrical connector 2j via the second connection line 2k, and is matched and docked with the second multi-pin electrical connector 2e of the second electrical connection box 201. According to safety regulations and operational needs, the load is connected to the appropriate pins of the second load electrical connector 2j to meet the operational requirements of the controllable circuit. The load end is generally equipped with a second load housing 2h to protect the second load electrical connector 2j and the second connection line 2k.

[0038] Reference Figure 3 , Figure 3 This is a quick installation wiring diagram of an embodiment of the utility model, using the third electrical connection box 301 connected by the loop power circuit and Figure 1 A wiring diagram for operating with the first load component 102 in FIG. Figure 1 Similarly, the power supply cable 1a is a set of multi-core commercial power supply wires, and the core wire 1b is installed by an electrician on the third multi-position wire connection terminal 3c in the third electrical connection box 301, and is connected to the corresponding wiring position of the first multi-pin electrical connector 3e of the third electrical connection box 301 through the third pair of wires 3d. The third multi-position wire connection terminal 3c in the third electrical connection box 301 has another set of connection wire terminals for docking and leading out L, N and ground wires, and is connected to another third electrical connection box 301 in a ring connection manner, and so on. In this way, a set of power supply cables 1a can supply multiple first load components 102.

[0039] The load described in this embodiment (ie, the first load 1m, such as an LED lighting fixture) and the first load electrical connector 1j can be pre-assembled as follows: Figure 4The third electrical connection box 301 of this embodiment can be changed into different internal configurations and circuits, for example, it can be used Figures 1 to 3 Circuits but not limited to these, and load electrical connectors with different loads are configured to meet operational requirements.

[0040] like Figures 4 to 11 As shown, an electrical connection box (the electrical connection boxes described below all refer to the third electrical connection box 301 above), which is used to configure a power supply cable, and is quickly connected to a load component outside the electrical connection box through an electrical connector 9 therein. The electrical connection box includes a box body and an electrical component, and the electrical component is installed in the box body; the box body includes a top cover 6 and a base 5, one end of the top cover 6 is hinged to the base 5, and the other end is buckled to the base 5 through a buckling structure, one end of the box body is provided with a wire entry hole 1, and the other end is provided with a clearance hole 5e; the electrical component includes a wire connection terminal 7 and an electrical connector 9, the wire connection terminal 7 is electrically connected to the electrical connector 9, the side of the wire connection terminal 7 close to the wire entry hole 1 is a wiring terminal opposite to the wire entry hole 1, the side of the electrical connector 9 facing away from the wire connection terminal 7 is a load plug-in terminal 2 and is opposite to the clearance hole 5e or extends from the clearance hole 5e to the outside of the box body, and the load plug-in terminal 2 is used to plug the load electrical connector outside the electrical connection box. Since the third electrical connection box 301 can be changed into different internal configurations and circuits, correspondingly, the load electrical connector can have a variety of designs, including but not limited to the first load electrical connector 1j and the second load connector 2j. One end of the electrical connection box is connected to the power supply line, and the other end is directly plugged into the external load electrical connector, so the electrical connection box can be quickly docked with the load electrical connector to improve maintenance efficiency. As an optimization solution, the load plug-in end 2 extends out of the box body to provide a better field of view, which is conducive to docking.

[0041] The wire connection terminal 7 can be electrically connected to the electrical connector 9 through a medium such as a cable or a printed circuit board 8 . The wire connection terminal 7 and the electrical connector 9 in the electrical connection box of this embodiment are connected through the printed circuit board 8 .

[0042] like Figure 5 The wire connection terminal 7 in this embodiment is equivalent to Figure 3 Multiple wire connection terminals 3c (multiple positions are not limited to Figure 3 The three positions shown in the figure can be formed by connecting a plurality of identical terminals in parallel to each other appropriately to form the function and effect of the power loop output configuration. The number of these terminals can be increased or decreased according to actual needs. The electrical connector 9 is equal to Figure 3 Multi-pin electrical connector 3e (multi-pin is not limited to Figure 3 three pins as shown).

[0043] At least one set of wire connection terminals 7 is installed in the electrical connection box 301 for connecting different wire cores in the power supply line. The wire connection terminals 7 are connected to the printed circuit board 8 to connect the power supply to the corresponding wiring position of the electrical connector 9. The electrical connection box assembles the wire connection terminals 7 and the electrical connector 9 through the printed circuit board, saving the assembly cost of the production line. The wire connection terminals 7 and the electrical connector 9 are welded on the printed circuit board 8 to form an electrical component, and the electrical component is installed in a suitable position in the base by at least one screw or a fastening device provided on the base 5. It can also be based on Figure 3 , the wire connection terminal 7 is connected to other connection terminals corresponding to the wire connection terminal 7 through the printed circuit board 8, and supplies power to other connected electrical connection boxes 301. This arrangement provides manufacturers with flexibility to supply Figures 1 to 3 Or other embodiments, there are different models of electrical connection boxes for different purposes.

[0044] At least one wire clamp group 5a is provided on the base 5. The wire clamp group 5a is located between the wire entry hole and the electrical component. Each wire clamp group 5a includes two vertical tooth surfaces 51 ( Figure 6 ), each tooth surface 51 is provided with a plurality of vertical teeth, and the two tooth surfaces 51 are opposite to each other. Figure 6 The base 5 is provided with three spaced clamping plates 52, the left and right sides of the middle clamping plate 52 are provided with tooth surfaces 51, and the other two clamping plates 52 are each provided with a tooth surface 51, and the tooth surfaces 51 on the three clamping plates 52 form two wire clamp groups 5a. In other embodiments, the number of wire clamp groups 5a can be increased or decreased.

[0045] like Figure 7 The upper and lower sides of the wire entry hole 1 are respectively provided with an upper tooth row 11 and a lower tooth row 12, the upper tooth row 11 is provided on the top cover 6, and the lower tooth row 12 is provided on the base 5, and the upper tooth row 11 and the lower tooth row 12 are spaced and opposite to each other at the front end of the electrical connection box. Wire clamp group 5a ( Figure 5 ) is located between the wire entry hole 1 and the electrical component. The connected power line first passes through the wire entry hole 1 and then passes through the wire clamp group 5a. After the top cover 6 and the base 5 are fastened, the upper tooth row 11 and the lower tooth row 12 at the wire entry hole 1 provide a vertical clamping force for the power line, and the wire clamp group 5a provides a horizontal clamping force for the power line. The double clamping ensures that the power line is not easy to fall off. The wire entry hole 1 of the box body can be installed with at least one multi-core power line, and at least one set of wire connection terminals 7 are installed in the base 5 to connect different wire cores in the power supply line, or loop to other electrical connection boxes.

[0046] In this embodiment, the buckle structure includes two multi-tooth hook bodies 6a, each of which includes an elastic connecting plate 61 and a Figure 6) are provided with a plurality of laterally arranged latching teeth on the outer side surface, and the elastic connecting plates 61 of the two multi-toothed hook bodies 6a are respectively connected to the lower ends of both sides of the top cover 6. The base 5 is provided with two through holes 5b, and the two multi-toothed hook bodies 6a correspond to the two through holes 5b respectively. The top cover 6 and the base 5 are buckled by latching the latching teeth on the bottom surface of the side wall of the through hole 5b. The multi-toothed hook body 6a can be inserted into the through hole 5b when the top cover 6 is flipped and closed. When the top cover 6 is continuously pressed, the multi-toothed hook body 6a can continue to penetrate into the through hole 5b until one of the latching teeth latches the bottom surface of the side wall of the through hole 5b, so as to keep the top cover 6 locked on the base 5. When it is necessary to release, the locked multi-toothed hook body 6a can be released by squeezing the lower ends of the left and right side walls of the top cover 6 with fingers, and the top cover 6 can be lifted and flipped open, which is very convenient. With the height matching of the top cover 6 and the side wall (front side wall) of the power cord input end of the base 5, power cords of different diameters can be installed, and a vertical clamping force can be applied to the installed power cord to prevent the power cord from loosening. The size of the wire entry hole 1 depends on the degree of fastening between the top cover 6 and the base 5, and the multi-tooth hook body 6a has multi-stage clamping teeth (three-stage clamping teeth are provided in this embodiment), forming a multi-stage fastening, and the wire entry hole 1 can clamp wires of various specifications. Figures 8 to 11 It is a multi-angle appearance picture of the electrical junction box of this embodiment. It can be seen that the three-stage clamping teeth of the multi-tooth hook body 6a are completely inserted into the through hole 5b, and the space height between the top cover 6 and the front side wall of the base 5 (the end where the wire entry hole 1 is located) is the smallest, which is suitable for installing small-diameter power lines.

[0047] In this embodiment, the base 5 and the top cover 6 are both quadrilateral structures. The base 5 has a quadrilateral bottom plate and four side walls perpendicular to the bottom plate extending upward from the edges of the base. Two adjacent side walls are connected to each other. Since the through hole 5b is opened on the bottom plate, it does not occupy the operating space of the operator when connecting the power cord.

[0048] The top cover 6 has a quadrilateral top plate and a left side wall, a right side wall and a front side wall respectively extending downward from the left, right and front edges of the top plate, and two adjacent side walls are connected to each other. The elastic connecting plates 61 of the two multi-toothed hook bodies 6a are respectively formed integrally with the left side wall and the right side wall of the top cover 6. A plurality of ribs 62 are provided on the inner side of the left side wall and the inner side of the right side wall of the top cover 6, and the ribs 62 connect the top plate of the top cover. When the multi-toothed hook body 6a is inserted into the through hole 5b, the elastic connecting plate 61 is elastically deformed and transmits force to the left side wall and the right side wall of the top cover 6. The ribs 62 are used to increase the strength of the left side wall and the right side wall of the top cover 6 to prevent the left side wall and the right side wall of the top cover 6 from cracking or deformation. The clearance hole 5e in this embodiment is provided on the rear side wall of the base 5.

[0049] The top cover 6 is hingedly connected to the base 5 at one end away from the wire entry hole 1. Specifically, the left and right walls of the top cover 6 are provided with hinge shafts 6b ( Figure 5), the left and right side walls of the base 5 are provided with hinge holes 5d (preferably blind holes, invisible on the outer surface) on the inner side of the end away from the wire entry hole 1, and the two hinge shafts 6b match the two hinge holes 5d so that the top cover 6 can be opened relative to the base 5 or covered on the base 5 with the hinge shafts 6b as the center. In other embodiments, the hinge shafts 6b can also be provided on the left and right walls of the base 5, and the hinge holes 5d can be provided on the left and right walls of the top cover 6, so that the hinged connection between the top cover 6 and the base 5 can also be achieved.

[0050] As a preferred solution, in this embodiment, the left and right side walls of the base 5 are provided with protrusions 5c on the inner side away from the end of the wire entry hole 1. When the top cover 6 is opened to the point where the bottom surface of the side wall of the top cover 6 is placed on the protrusion 5c on the same side, the protrusions prevent the top cover 6 from closing, so that it can be kept in a predetermined open state. It is only necessary to apply a little more force when closing the top cover 6, and the function of closing the top cover 6 will not be affected. That is to say, through the protrusions 5c, the top cover 6 can remain in the open state after opening, thereby facilitating the operation of connecting or unplugging the power cord.

[0051] As a preferred solution, the top cover 6 of the electrical connection box is made of transparent or translucent plastic injection molding, so that the installation status of the wires can be seen without opening the top cover 6.

[0052] In other embodiments, the base 5 and the top cover 6 are not limited to a quadrilateral structure, for example, they may also be circular or a special shape (for example, a structure combining a circular shape and a quadrilateral).

[0053] As described above, the embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model. Therefore, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the protection scope of the utility model.

Claims

1. An electrical connection box, characterized in that: It includes a box body and an electrical component, wherein the electrical component is installed in the box body; The box body comprises a top cover and a base, one end of the top cover is hinged to the base, and the other end is buckled to the base through a buckle structure, one end of the box body is provided with a wire entry hole, and the other end is provided with a clearance hole; The electrical component includes a wire connection terminal and an electrical connector, the wire connection terminal is electrically connected to the electrical connector, a side of the wire connection terminal close to the wire entry hole is a wiring terminal opposite to the wire entry hole, a side of the electrical connector facing away from the wire connection terminal is a load plug-in terminal and is opposite to the clearance hole or extends out of the box body from the clearance hole, and the load plug-in terminal is used to plug into the load electrical connector outside the electrical connection box.

2. The electrical connection box according to claim 1, characterized in that: The buckling structure includes at least one multi-tooth hook body, which includes an elastic connecting plate and a plurality of transversely arranged latching teeth located on the outer side of the elastic connecting plate. The elastic connecting plate of the multi-tooth hook body is connected to the top cover, and at least one through hole is provided on the base. The multi-tooth hook body corresponds to the through hole, and the buckling connection between the top cover and the base is achieved by latching the latching teeth on the bottom surface of the side wall of the through hole.

3. The electrical connection box according to claim 2, characterized in that: The top cover includes a quadrilateral top plate and a left side wall, a right side wall and a front side wall respectively extending downward from the left, right and front edges of the top plate; the base includes a horizontal quadrilateral bottom plate and four side walls, front, back, left and right, extending upward from the edges of the bottom plate.

4. The electrical connection box according to claim 3, characterized in that: The left and right side walls of the top cover are provided with hinge shafts protruding outward at the end away from the wire entry hole, and the left and right side walls of the base are provided with hinge holes on the inner side of the end away from the wire entry hole. The two hinge shafts match the two hinge holes, and the top cover can be opened relative to the base or closed on the base with the hinge shaft as the center.

5. The electrical connection box according to claim 4, characterized in that: The left and right side walls of the base are provided with at least one protrusion on the inner side away from the wire entry hole. When the top cover is flipped open until the bottom surfaces of the left and right walls of the top cover are placed on the protrusions on the same side, the protrusions prevent the top cover from closing, so that it remains in a predetermined flipped state.

6. The electrical connection box according to claim 3, characterized in that: There are two multi-tooth hook bodies, and the elastic connecting plates of the two multi-tooth hook bodies are respectively integrally formed with the left and right walls of the top cover. A plurality of ribs are arranged on the inner sides of the left and right walls of the top cover, and the ribs are connected to the top plate of the top cover.

7. The electrical connection box according to claim 3, characterized in that: The through hole is arranged on the bottom plate.

8. The electrical connection box according to claim 1, characterized in that: At least one wire clamp group is arranged on the base, and the wire clamp group is located between the wire entry hole and the electrical component. Each wire clamp group includes two vertical tooth surfaces arranged at intervals, each tooth surface is provided with a plurality of vertical clamping teeth, and the two tooth surfaces are opposite to each other.

9. The electrical connection box according to claim 1 or 2, characterized in that: An upper tooth row and a lower tooth row are respectively arranged on the upper and lower sides of the wire entry hole, the upper tooth row is arranged on the top cover, and the lower tooth row is arranged on the base, and the upper tooth row and the lower tooth row are spaced and opposite to each other.

10. The electrical connection box according to claim 1, characterized in that: The top cover of the electrical connection box is made of transparent or translucent plastic by injection molding.

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