CN114243603A

CN114243603A - Junction box

Info

Publication number: CN114243603A
Application number: CN202210022565.4A
Authority: CN
Inventors: 王旭
Original assignee: Shanghai Zhuwei Electric Appliance Co ltd
Current assignee: Shanghai Zhuwei Electric Appliance Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-03-25
Also published as: WO2023131064A1

Abstract

The invention provides a junction box which comprises a front box body, a door plate and a rear box body. The front box body comprises a front plate, a first side plate and a second side plate, the front plate, the first side plate and the second side plate are all formed into a square shape, the front side of the first side plate and the front side of the second side plate are respectively and vertically connected to the left side and the right side of the front plate, and an opening is formed in the front plate; one side of the door panel is rotatably coupled to one side of the opening to open/close the opening; the rear box body comprises a back plate, a top plate and a bottom plate, the back plate, the top plate and the bottom plate are all formed into a square shape, and the rear side of the top plate and the rear side of the bottom plate are respectively and vertically connected to the upper side and the lower side of the back plate; the front box body and the rear box body are integrally formed, and the front box body and the rear box body are spliced into a square body in a welding mode. The manufacturing process of the front box body and the rear box body does not need welding, and only welding is needed in the splicing process, so that welding seams on the box body are greatly reduced, and the problems of long welding time, difficulty in cleaning welding spots, easiness in deformation, poor sealing effect and the like are effectively solved.

Description

Junction box

Technical Field

The invention relates to the technical field of power distribution, in particular to a junction box.

Background

The existing junction box comprises a door plate and a box body, wherein the box body comprises a front plate, two side plates, a back plate, a top plate and a bottom plate, all parts of the box body are made of flat plate materials, and are subjected to tailor welding after corner cutting, hole opening and edge bending to finally form a whole. In the welding process, all welding lines need to be fully welded, the welding lines are required to be attractive, smooth and free of welding slag, and welding points are cleaned by special liquid medicine to achieve the effects that the sealing is watertight, and the welding points basically keep the original color of the plate.

The junction box formed by welding has the advantages that the box body has more welding parts and more positions needing welding, welding spots after welding are correspondingly more, and the time needed for welding and cleaning the welding spots is longer. In addition, excessive welding easily causes the problems of cold joint and deformation of flat plate materials, so that the welded box body is not attractive and poor in sealing effect.

Disclosure of Invention

In view of the above, the present invention provides a junction box, in which a box body of the junction box is formed by welding only two parts, and this structure can reduce welding seams on the box body and welding spots after welding, so as to obtain a flat appearance and a good sealing effect, and reduce welding and cleaning time.

In order to solve the technical problems, the invention adopts the following technical scheme:

the junction box of the present invention comprises:

the refrigerator comprises a front box body, a second box body and a control device, wherein the front box body comprises a front plate, a first side plate and a second side plate, the front plate, the first side plate and the second side plate are all formed into a square shape, the front side of the first side plate and the front side of the second side plate are respectively and vertically connected to the left side and the right side of the front plate, and an opening is formed in the front plate;

a door panel having one side rotatably connected to one side of the opening to open/close the opening;

the rear box body comprises a back plate, a top plate and a bottom plate, the back plate, the top plate and the bottom plate are all formed into a square shape, and the rear side of the top plate and the rear side of the bottom plate are respectively and vertically connected to the upper side and the lower side of the back plate;

the front box body and the rear box body are integrally formed, and the front box body and the rear box body are spliced into a square body in a welding mode.

Further, the integrated molding is punch forming.

Further, the door panel is formed with a reinforcing rib.

Further, the junction box further comprises:

the mounting panel, the mounting panel sets up the inside of junction box for install the internal component.

Further, the mounting plate is fixed on the back plate through a support screw.

Furthermore, a first pressing edge is formed on the periphery of the door panel, a second pressing edge is formed on the periphery of the opening of the front plate, and the first pressing edge is attached to the outer side of the second pressing edge when the door panel is covered with the front plate.

Further, a sealing strip is arranged on the inner side of the first pressing edge.

Further, the side edge of the back plate is provided with a mounting lug.

Further, the door plate is connected with the front plate through a hinge.

The technical scheme of the invention at least has one of the following beneficial effects:

the box body of the junction box is formed by welding two parts, and the structure can reduce welding seams on the box body and welding spots after welding, thereby obtaining a smooth appearance and a good sealing effect, and reducing the time for welding and cleaning.

Drawings

FIG. 1 is an exploded view of a junction box according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a junction box according to an embodiment of the present invention.

Reference numerals: 1. a door panel; 2. a front plate; 3. a first side plate; 4. a second side plate; 5. an opening; 6. a back plate; 7. a top plate; 8. a base plate; 9. reinforcing ribs; 10. mounting a plate; 11. a support screw; 12. a first blank holder; 13. second edge pressing; 14. a sealing strip; 15. mounting a lug; 16. and (4) a hinge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Embodiments of the junction box of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-2, the junction box of the present invention comprises a front box body, a door panel 1, and a rear box body. The front box body comprises a front plate 2, a first side plate 3 and a second side plate 4, the front plate 2, the first side plate 3 and the second side plate 4 are all formed into a square shape, the front side of the first side plate 3 and the front side of the second side plate 4 are respectively and vertically connected to the left side and the right side of the front plate 2, and an opening 5 is formed in the front plate 2; one side of the door panel 1 is rotatably coupled to one side of the opening 5 to open/close the opening 5; the rear box body comprises a back plate 6, a top plate 7 and a bottom plate 8, the back plate 6, the top plate 7 and the bottom plate 8 are all formed into a square shape, and the rear side of the top plate 7 and the rear side of the bottom plate 8 are respectively and vertically connected to the upper side and the lower side of the back plate 6; the front box body and the rear box body are integrally formed, and the front box body and the rear box body are spliced into a square body in a welding mode.

The existing junction box comprises a door plate 1 and a box body, wherein the box body comprises a front plate 2, a first side plate 3, a second side plate 4, a back plate 6, a top plate 7 and a bottom plate 8, all parts of the box body are made of flat plate materials, and are subjected to tailor welding after corner cutting, hole opening and edge bending to form a whole. The box body formed by welding has more welding parts, more positions needing welding, more welding spots after welding and longer time for welding and cleaning the welding spots. In addition, excessive welding easily causes the problems of cold joint and deformation of flat plate materials, so that the welded box body is not attractive and poor in sealing effect. In order to overcome this problem, in this embodiment, the box only comprises preceding box and back box two parts, and preceding box is formed to front bezel 2, first curb plate 3, second curb plate 4 integrated into one piece, and backplate 6, roof 7, bottom plate 8 integrated into one piece constitute the back box, and preceding box and back box assemble into complete box through the welding. Wherein, preceding box and back box are all made flat material through corner cut, trompil, crimp, and the manufacturing process need not the welding, only need in the front the box with the concatenation in-process of back box weld, the welding seam on the box that has significantly reduced to effectively solved long, the difficult clearance of solder joint, easy deformation and sealed effect subalternation problem of welding time.

Further, the integral molding is punch forming. In this embodiment, the integrated forming manner of the front box body and the rear box body is punch forming, but it should be noted that the integrated forming manner is not limited in the present invention, and may be reasonably selected according to actual needs, as long as the operational performance and quality of the box body can be ensured through integrated forming, and the welding seams on the box body are reduced.

Further, as shown in fig. 2, the door panel 1 is formed with a reinforcing rib 9. In the present embodiment, the door panel 1 is provided with a reinforcing rib 9 for reinforcing the strength of the door panel 1. The reinforcing ribs 9 may be disposed along the width direction of the door panel 1, may also be disposed along the length direction of the door panel 1, and may also be disposed in a staggered manner along the oblique direction, which is not limited in the present invention, and may be reasonably disposed according to actual needs as long as the strength of the door panel 1 can be enhanced.

Further, as shown in fig. 1, the junction box further includes a mounting plate 10, and the mounting plate 10 is provided inside the junction box for mounting internal components. The mounting plate 10 is a separate component that can be stamped into different shapes or cut from a sheet of material. The mounting plate 10 may be used for mounting and arranging internal components, such as terminals, ground bars, transformers, air switches, etc.

Further, as shown in fig. 1, the mounting plate 10 is fixed to the back plate 6 by a support screw 11. In other embodiments, the mounting plate 10 may be disposed on the bottom plate 8, or may be disposed on the first side plate 3 or the second side plate 4. The mounting plate 10 is detachably connected to the inside of the junction box through a support screw 11, so that the mounting plate 10 can be conveniently detached and replaced.

Further, as shown in fig. 1-2, a first pressing edge 12 is formed around the door panel 1, a second pressing edge 13 is formed at a position of the front panel 2 around the opening 5, and when the door panel 1 and the front panel 2 are closed, the first pressing edge 12 is attached to the outer side of the second pressing edge 13, thereby achieving a sealing effect. The first pressing edge 12 and the door panel 1, the second pressing edge 13 and the front plate 2 are all of an integrally formed structure, no welding line exists, and the sealing performance is good.

Further, as shown in fig. 2, the inside of the first flange 12 is provided with a seal 14. In order to achieve a more effective seal between the door panel 1 and the front panel 2, in the present embodiment, a sealing strip 14 is provided on the inside of the first hem 12 of the door panel 1, and the sealing strip 14 can be in contact with the second hem 13. That is to say, when door plant 1 and front bezel 2 are closed, sealing strip 14 on door plant 1 can laminate with second blank holder 13, and under the effect of the clamping force, second blank holder 13 can compress tightly sealing strip 14 in order to realize more effective sealed. In this embodiment, the sealing strip 14 may be a rubber or nylon piece, which is not limited in this respect and can be reasonably selected according to actual needs.

Further, as shown in fig. 1, the side of the back plate 6 is provided with a mounting lug 15. The operator can install the junction box more conveniently by means of the mounting lugs 15.

Further, as shown in fig. 1, the door panel 1 and the front panel 2 are connected by a hinge 16. In this embodiment, the door panel 1 and the front panel 2 may be rotatably connected by the hinge 16, and in other embodiments, the door panel 1 and the front panel may be connected by other methods.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A junction box, comprising:

2. A junction box according to claim 1, wherein the integral forming is a punch forming.

3. The junction box of claim 1, wherein the door panel is formed with a stiffener.

4. The junction box of claim 1, further comprising:

5. The junction box of claim 4, wherein the mounting plate is secured to the back plate by a support screw.

6. The junction box of claim 1, wherein a first edge is formed around the door panel, a second edge is formed around the opening of the front panel, and the first edge fits outside the second edge when the door panel is closed against the front panel.

7. A connection box according to claim 6, characterised in that the first binder is provided with a sealing strip on the inside.

8. A service box as claimed in claim 1, in which the side edges of the back panel are provided with mounting lugs.

9. A junction box as claimed in claim 1, wherein the door panel is hingedly connected to the front panel.