CN202059122U - Junction box and its fastening structure - Google Patents

Abstract

The utility model relates to a junction box and a buckling structure thereof, the junction box comprises a junction box cover body and a junction box base, and the buckling structure of the junction box is used for buckling the junction box cover body and the junction box base; the junction box cover body comprises at least one joint arm extending to the side face of the junction box cover body, and the joint arm is provided with a buckling hook, two side plates and a positioning groove; the position of the junction box base corresponding to the buckling hook of the junction arm is provided with a mutually clamped buckling hook, therefore, the lateral plate on the junction arm can coat and position the buckling hook positioned on the base to increase the lateral stress capacity perpendicular to the buckling direction of the buckling hook and the buckling hook, so that the junction box cover body and the junction box base are not easy to separate and fall off due to external force collision, and meanwhile, the junction arm and the lateral plate coat the outside of the junction box to reduce the possibility of generating gaps between the junction box cover body and the junction box base, prevent liquid from permeating into the junction box, and enhance the combination stability and the waterproofness of the junction box.

Description

Junction box and its fastening structure

technical field

The utility model relates to a junction box and its fastening structure, in particular to a junction box and its fastening structure which are applied to various electronic products and have better joint stability and waterproof performance.

Background technique

The junction box of general electronic products, such as the "junction box" of Taiwan's announcement number M394573, is often located near the four corners of the junction box, and hooks and slots are provided on the cover and base respectively to connect in a snap-fit manner. The cover and the base prevent the junction box from being easily opened after assembly; it is equipped with snap-fit structures on the four corners of the junction box. Although the position of the cover and the base can be fixed, there are still structural shortcomings , For example, in the non-corner of the junction box, or in the center of the opposite side of the junction box, it is easy to cause the junction box to deform and cause a gap between the cover and the base. In addition, if the fastening structures such as hooks and grooves are too small compared to the junction box, the fastening structure is easy to bend or lose elasticity during the assembly or disassembly of the junction box, causing the cover and base to be easily damaged. Detachable, easy to fall off.

Since there is an electrical connection device in the junction box, if there is a gap between the cover and the base, liquid or moist air will seep into the junction box, which will affect the operation of electronic products and reduce the overall performance; Finally, the junction box is subjected to improper external impact or extrusion, resulting in gaps or falling off of the cover and base, so that liquid or humid air can easily invade the junction box. A better junction box and its snap-fit structure.

Utility model content

The purpose of the utility model is to provide a junction box and its fastening structure, which makes the junction box have better joint stability, is not easy to bend and deform, and improves its water resistance.

In order to achieve this purpose, the utility model proposes a fastening structure of a junction box, the fastening structure includes:

An engaging arm is located at the edge of the junction box cover, extending downward from the side of the junction box cover, and a snap hook is provided at the end of the engaging arm; and

a hook, which is arranged on the outer side of the junction box base at a position corresponding to the fastening hook, and the hook is used to engage with the fastening hook;

Therefore, the fastening structure can be used to fasten a junction box cover and a junction box base.

The buckling structure of the junction box as described above, wherein the buckling structure is located outside the junction box, and the buckling hook and the hook are covered inside the buckling structure after the buckling is completed.

In the snap-fit structure of the junction box as described above, the engaging arm can be arranged at the center, near the corner or any other position on the edge of the junction box cover.

In the snap-fit structure of the junction box described above, the engaging arm and the junction box cover can be made of integrally formed plastic injection material or other elastic materials.

In the snap-fit structure of the junction box described above, the engaging arm can be designed in different lengths, shapes and sizes, so as to increase the thickness of the junction box wall or change the shape of the junction box body after the junction box is assembled.

In the buckle structure of the junction box as described above, side plates are provided on both sides of the joint arm, and a positioning groove is formed on the inner side of the joint arm by the side plate for accommodating the hook of the junction box base, and the side plate The other end of the engaging arm on the cover of the junction box opposite to the buckling hook is provided with a release groove communicating with the positioning groove.

The buckle structure of the junction box as described above, wherein the side plate can be designed in different shapes and sizes, so as to increase the thickness of the junction box wall or change the shape of the junction box after the junction box cover and the junction box base are assembled .

In the buckling structure of the junction box described above, the width of the positioning groove matches the hook, so that after the buckling is completed, the hook and the side plate of the engaging arm can be closely attached.

The buckle structure of the junction box as described above, wherein the release groove can be passed through by a screwdriver or other long tools, and pushes the wall of the positioning groove toward the outside of the junction box cover, so that the buckle hook The hook is released from each other, so as to separate the junction box cover from the junction box base.

The buckle structure of the junction box as described above, wherein the buckle hook of the joint arm can be replaced by a slot, the slot is arranged inside the joint arm, the size, shape and position of the slot are the same as those of the junction box The hooks of the base cooperate with each other so as to be engaged with the hooks.

The utility model also proposes a junction box, which includes: a junction box cover, at least one engaging arm is arranged on its edge; ;

Wherein, the engaging arm is arranged on the outer side of the junction box cover, and the inner side of the engaging arm is provided with a buckle hook or a locking groove, so as to engage with the hook on the junction box base.

The buckling structure of the junction box provided by the utility model is used for buckling a junction box cover and a junction box base. The fastening structure includes: an engaging arm and a hook, the engaging arm is arranged on the edge of the junction box cover, the engaging arm has a fastening hook, two side plates, and a positioning groove; the engaging arm is arranged on the wiring The outer side of the box base is used to engage with the above-mentioned buckle hooks.

The junction box and its fastening structure provided by the utility model use the joint arm and the side plate to protect the fastening hook and the hook inside, so that it is not easily disturbed by external force, and the joint arm can be arranged on the Any position on the outside of the junction box cover can be designed in different shapes and thicknesses to strengthen the structure of the junction box shell so that it is not easy to be deformed and twisted to cause a gap between the junction box cover and the junction box base.

The fastening structure of the junction box provided by the utility model, wherein the width of the positioning groove of the joint arm matches the hook, so that after the junction box is assembled, the two sides of the hook and the two side plates of the joint arm Close fit, so that it can resist the force perpendicular to the buckling direction, so that the junction box can be tightly combined when it is assembled and buckled, so that the junction box body can withstand external force interference from all directions.

The fastening structure of the junction box provided by the utility model can be disassembled by using tools to unbuckle. The positioning grooves are connected; the release groove can be passed through by a tool or other long strip tools, and the wall of the positioning groove is pushed toward the outside of the junction box, so that the buckle hook and the hook are released from each other. In order to separate the junction box cover from the junction box base.

Description of drawings

Fig. 1 is an exploded schematic diagram of the first embodiment of the present invention.

Fig. 2 is an assembled perspective view of the first embodiment of the present invention.

Fig. 3 is a perspective view of the junction box cover at another angle according to the first embodiment of the present invention.

Fig. 4A is a front view of the junction box base of the first embodiment of the present invention.

Fig. 4B is a right side view of the junction box base of the first embodiment of the present invention.

Fig. 4C is a bottom view of the junction box base of the first embodiment of the present invention.

Fig. 5A is a front view of the junction box cover of the first embodiment of the present invention.

Fig. 5B is a right side view of the junction box cover of the first embodiment of the present invention.

5C is a bottom view of the junction box cover of the first embodiment of the present invention.

FIG. 6A is a front view of the junction box cover and the junction box base of the first embodiment of the present invention after fastening.

Fig. 6B is a right side view of the junction box cover and the junction box base of the first embodiment of the present invention after fastening.

FIG. 6C is a bottom view of the junction box cover and the junction box base of the first embodiment of the present invention after fastening.

7 is a schematic cross-sectional view of the junction box cover and the junction box base of the first embodiment of the present invention before fastening.

8 is a schematic cross-sectional view of the junction box cover and the junction box base of the first embodiment of the present invention after fastening.

Fig. 9A is a schematic diagram of the disassembly method of the junction box cover and the junction box base of the first embodiment of the present invention.

FIG. 9B is a schematic diagram of the disassembly method of the junction box cover and the junction box base of the first embodiment of the present invention.

FIG. 10 is a three-dimensional schematic view of the junction box cover of the second embodiment of the present invention.

Explanation of main component labels:

Junction box cover 1

joint arm 11

Buckle hook 111

side panel 112

Positioning groove 113

Unlock groove 114

Card slot 115

Buckle pin 12

Junction box base 2

Hook 21

Buckle seat 22

Connector 23

Connecting part 24

Bottom plate 25

Tool 3

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation of the present utility model is now described with reference to the accompanying drawings:

Please refer to FIG. 1 to FIG. 3 , which are respectively an exploded schematic view, an assembled perspective view and a perspective view of the junction box cover from another angle of the first embodiment of the present invention. As shown in the figure, the fastening structure of the junction box of the present invention can be used to connect a junction box cover 1 and a junction box base 2. Four engaging arms 11 are arranged at the center of the four sides of the junction box cover 1. The engaging arms 11 are extended from the side of the junction box cover 1 toward the direction of the junction box base 2, and the engaging arms 11 are provided with a snap hook 111 (see FIG. 3 ), side plates 112 and a positioning recess. Groove 113; the junction box base 2 is provided with a hook 21 that can engage with each other relative to the position of the engaging hook 111 of the engaging arm 11, and the engaging arm 11 and the side plate 112 can engage the junction box base 2. The hook 21 is covered and positioned so that the junction box cover 1 and the junction box base 2 can be tightly combined.

Wherein, in this embodiment, the joint arm 11 and the side plates 112 on both sides are clamped on the outside of the junction box base 2, the joint arm 11 can be designed in different lengths, shapes and sizes (not shown), and the side plates The board 112 can be designed into different shapes and sizes (not shown), to increase the thickness of the junction box wall or change the shape of the junction box shell, so that the junction box is not easy to bend and deform, so that after the assembly is completed, it can be used as a junction box. Provides better structural protection.

In addition, in this embodiment, the engaging arm 1 can also be arranged at a corner or other arbitrary position (not shown) on the edge of the junction box cover 1, so that the position is difficult to bend after the junction box is assembled. bending deformation, so as to increase the strength of the junction box body.

In the above embodiment, the junction box cover 1 and the joint arm 11 can be integrally formed of plastic injection material, or other elastic materials, so that the joint arm 11 has elasticity, so that the joint The arm 11 can be flexed, and after assembly, the engaging arm 11 returns to its original shape.

Please refer to Fig. 1 to Fig. 6, the fastening structure of the present utility model comprises an engaging arm 11 and a hook 21, and the inside of the terminal end of the engaging arm 11 is provided with a engaging hook 111, and both sides of the engaging arm 11 are provided with Side plate 112, the two side plates form a positioning groove 113 on the inner side of the engaging arm 11, and the engaging arm 11 is provided with a release groove 114 on the other end of the junction box cover 1 opposite to the buckle hook 111 , the trip groove 114 communicates with the positioning groove 113 .

The hook 21 is arranged on the outer side of the housing of the junction box base 2 corresponding to the position of the buckle hook 111 on the engaging arm 11, and is used to engage with the buckle hook 111, and the width of the hook 21 is consistent with the above positioning The groove 113 cooperates, so that after the fastening is completed, both sides of the hook 21 can closely fit with the two side plates 112 of the engaging arm 11 and be fixed inside the engaging arm 11 .

As mentioned above in the first embodiment, on the four corners of the junction box cover 1, buckle pins 12 can be respectively added to connect with the buckle seats 22 provided on the four corners outside the junction box base 2 buckle; and one side of the junction box base 2 is provided with a joint 23 for connecting external electronic components, and the inside of the junction box base 2 is provided with a connecting portion 24, which includes a plurality of connecting units, and the wiring On the other side of the box base 2 relative to the joint 23, a bottom plate 25 is provided to allow the hand to lean against and apply force, which facilitates assembly and disassembly of the junction box.

Please refer to Figure 7 and Figure 8, which are the front and rear cross-sectional schematic diagrams of the junction box cover and the junction box base of the first embodiment of the present invention, respectively, and the cross-sectional direction is the E-E cross-hatching direction of Figure 6A, as shown in the figure , when the junction box cover 1 and the junction box base 2 are buckled downward, the joint arm 11 of the junction box cover 1 is pushed down, and at this time, the buckle hook 111 on the joint arm 11 and the junction box base The hooks 21 of 2 are in contact with each other, so that the engaging arm 11 flexes toward the outside of the junction box until the buckling hook 111 and the hook 21 are engaged with each other, thereby completing the buckling of the junction box cover 1 and the junction box base 2 .

Please refer to FIG. 9, when the user wants to disassemble the junction box cover 1 from the junction box base 2, the tool 3 can be used to extend from the release groove 114 on the junction box cover 1 into the positioning groove 113 (as shown in FIG. 9A shown), until the top touches the buckle hook 111, then push the tool 3 to the outside of the junction box to push the wall of the positioning groove 113, so that the engaging arm 11 flexes outward (as shown in Figure 9B), until The engagement arm 11 is released from the hook 21, and the fastening structures around the junction box can be unbuttoned one by one in this way; wherein, the tool 3 can be a flat screwdriver, a cross screwdriver, an iron bar or other strip-shaped objects.

In addition, users can directly use fingers to buckle against the end of the joint arm 11, and push the joint arm 11 to the outside of the junction box (not shown) until the joint arm 11 is released from the hook 21. According to this method, one by one Unsnap the snap-fit structure around the junction box.

Please refer to FIG. 10 , which are three-dimensional schematic diagrams of the junction box cover body of the second embodiment of the present invention. The side extends inwardly, and the engaging arm 11 is provided with an engaging slot 115 for buckling the engaging hook 21 on the junction box base 2 .

Wherein, the shape, position, and size of the slot 115 and the hook 21 of this embodiment need to match, so that the hook 21 can be completely accommodated in the slot 115, so that the junction box cover 1 and the junction box The base 2 snaps together.

The engaging arm 11 is covered on the outside of the junction box, and can be designed in different shapes, lengths, and thicknesses (not shown), so as to provide better structural protection for the junction box, and the engaging arm 11 and the slot 115 connect the hook 21 The joint arm 11 is completely covered, so that the junction box cover 1 and the junction box base 2 are not easily loosened due to external force.

Based on the above detailed description, the utility model junction box and its fastening structure can indeed achieve new expected effects, especially suitable for junction boxes that require high combination stability and waterproofness, such as solar junction boxes. The side plate on the arm can cover and position the hook on the base to increase the lateral force capacity perpendicular to the direction of the hook and the hook, so that the junction box cover and the junction box base are not easy to The joint arm and its side plate are covered on the outside of the junction box to reduce the possibility of gaps between the junction box cover and the junction box base, prevent liquid from penetrating into the junction box, and strengthen the junction box. Excellent combination of stability and water resistance.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. A snap-fit structure of a junction box, characterized in that, the snap-fit structure of the junction box comprises: An engaging arm is located at the edge of the junction box cover, extending downward from the side of the junction box cover, and a snap hook is provided at the end of the engaging arm; a hook, which is arranged on the outer side of the junction box base at a position corresponding to the fastening hook, and the hook and the fastening hook can be engaged with each other; The fastening structure can fasten the junction box cover and the junction box base. 2. The fastening structure of the junction box according to claim 1, wherein the fastening structure is located outside the junction box, and its interior can cover the buckled hook and the clip hook. 3 . The fastening structure of the junction box according to claim 1 , wherein the engaging arm is arranged at the center or near the corner of the edge of the junction box cover. 4 . 4 . The fastening structure of the junction box according to claim 1 , wherein the engaging arm and the junction box cover are made of plastic injection material integrally formed. 5 . 5. The fastening structure of the junction box according to claim 1, wherein side plates are provided on both sides of the engaging arm, and a positioning groove is formed on the inner side of the engaging arm by the side plate, and the positioning The groove can accommodate the hook of the base of the junction box, and the engaging arm is provided with a tripping groove on the junction box cover relative to the other end of the buckling hook, and the tripping groove and the positioning Grooves intersect. 6. The fastening structure of the junction box according to claim 5, wherein the width of the positioning groove matches the hook, and the hook can be closely attached to the side plate of the engaging arm. combine. 7. The fastening structure of the junction box according to claim 1, wherein the fastening hook of the engaging arm is a slot, and the slot is arranged on the inner side of the engaging arm, and the locking hook of the slot is The size, shape and position are matched with the hooks on the base of the junction box, and the slots and the hooks can be engaged with each other. 8. A junction box, characterized in that the junction box comprises: A junction box cover, at least one engaging arm is provided on its edge; a junction box base, at least one hook is provided on the outer side of the junction box relative to the position of the engaging arm; Wherein, the engaging arm is arranged on the outer side of the junction box cover, and the inner side of the engaging arm is provided with a buckle hook or a card slot, and the buckle hook or card slot can be engaged with the card on the junction box base. The hooks are connected to each other.

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