CN218569761U

CN218569761U - Terminal box

Info

Publication number: CN218569761U
Application number: CN202222764924.1U
Authority: CN
Inventors: 高智怡
Original assignee: Modi Solar Technology Dongguan Co ltd
Current assignee: Modi Solar Technology Dongguan Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-03-03
Anticipated expiration: 2032-10-19

Abstract

The utility model provides a junction box, which comprises a shell, a tail clip, a first connecting structure and a second connecting structure, wherein the shell is provided with a containing cavity, and one end of the shell is provided with a mounting hole communicated with the containing cavity; one end of the tail clamp penetrates through the mounting hole and extends into the accommodating cavity; the first connecting structure is fixed at one end of the tail clamp extending into the accommodating cavity; the second connecting structure is fixed on the inner wall of the shell; wherein, first connection structure and second connection structure interference fit are with fixed connection. Because first connection structure and second connection structure interference fit are with fixed connection, compare through a plurality of screw fixed connection with tail card and casing among the prior art, greatly simplified the assembling process between tail card and the casing, can fix the tail card on the casing fast and conveniently.

Description

Terminal box

Technical Field

The utility model relates to a terminal box technical field especially relates to a terminal box.

Background

The junction box is used for arranging and fixing the tail clamp (output wire) so that the tail clamp can be stably and electrically connected with electric equipment and a power supply. One end of a tail clamp in the junction box is electrically connected with electric equipment, and the other end of the tail clamp is led out from a wire outlet hole of the junction box.

In the related art, the housing of the junction box is fixedly connected with the tail clip through screws, and the screws are usually provided in plurality, so that the assembly between the tail clip and the housing is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a terminal box is provided, aim at solving the comparatively loaded down with trivial details problem of assembly between the casing of tail card and terminal box among the correlation technique.

In order to solve the technical problem, the utility model provides a junction box, include:

the shell is provided with an accommodating cavity, and one end of the shell is provided with a mounting hole communicated with the accommodating cavity;

one end of the tail clamp penetrates through the mounting hole and extends into the accommodating cavity;

the first connecting structure is fixed at one end of the tail clamp extending into the accommodating cavity;

the second connecting structure is fixed on the inner wall of the shell;

wherein, first connection structure with second connection structure interference fit is with fixed connection.

Preferably, the second connection structure includes an upright post fixed to the inner wall of the housing, the first connection structure includes a sleeve fixed to the outer side of the tail clamp, two ends of the sleeve are communicated to form a trepanning, the trepanning extends along the axial direction of the upright post, and the upright post is embedded and fixed in the trepanning.

Preferably, the housing has a first wall surface and a second wall surface which are arranged oppositely, one end of the upright post is fixed on the first wall surface, and the other end of the upright post extends to abut against the second wall surface.

Preferably, a reinforcing rib is fixed to the outer side of the upright column, one end of the reinforcing rib is fixedly connected to the first wall surface, and the other end of the reinforcing rib abuts against the sleeve.

Preferably, the number of the reinforcing ribs is multiple, the plurality of the reinforcing ribs are distributed at intervals along the circumferential direction of the upright column, and end faces of one ends, far away from the first wall face, of the reinforcing ribs are located on the same plane.

Preferably, the outer side of the tail clamp is sleeved with and fixed with a first limiting part and a second limiting part, a gap is formed between the first limiting part and the second limiting part, the first limiting part is located in the accommodating cavity, the second limiting part is located outside the accommodating cavity, and the wall surface of the mounting hole, which is arranged in the shell, is embedded in the gap.

Preferably, the stand with the casing is equipped with the interval sets up between the wall of mounting hole and is formed with the groove of stepping down, first locating part imbed in the inslot of stepping down.

Preferably, the second retaining member seals the mounting hole.

Preferably, the housing includes a housing having the accommodating cavity and a cover plate covering and connecting to the housing and sealing the accommodating cavity, the pillar is fixed to a bottom wall of the housing, and the pillar is provided with a threaded hole for fixing the cover plate and the housing by a screw.

Preferably, the junction box further includes a fixing base disposed between the cover plate and the housing, and a side edge of the fixing base extends out of the receiving cavity.

Compared with the prior art, the utility model, well a terminal box, beneficial effect lies in: because first connection structure and second connection structure interference fit are with fixed connection, compare through a plurality of screw fixed connection with tail card and casing among the prior art, greatly simplified the assembling process between tail card and the casing, can fix the tail card on the casing fast and conveniently.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

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

FIG. 3 is a schematic view of the assembly of the tail clip and the housing of the junction box according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a housing in a junction box according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a cover plate is inserted by an electric wire connected to a solar panel in the junction box according to an embodiment of the present invention.

In the drawings, each reference numeral denotes: 1. a housing; 11. a cover plate; 111. a counter bore; 112. a wire passing hole; 12. a housing; 121. an accommodating chamber; 122. mounting holes; 2. a tail card; 3. a sleeve; 31. trepanning; 4. a column; 41. a threaded hole; 5. reinforcing ribs; 6. a first limit piece; 7. a second limiting member; 8. and fixing the substrate.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to be used for explaining the present invention, but should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

The embodiment is as follows:

referring to fig. 1 to 5, an embodiment of the present invention provides a junction box, including a housing 1, a tail clip 2, a first connecting structure, and a second connecting structure, where the housing 1 has an accommodating cavity 121, and one end of the housing 1 is provided with a mounting hole 122 communicating with the accommodating cavity 121; one end of the tail card 2 passes through the mounting hole 122 and extends into the accommodating cavity 121; the first connecting structure is fixed at one end of the tail card 2 extending into the accommodating cavity 121; the second connecting structure is fixed on the inner wall of the shell 1; wherein, first connection structure and second connection structure interference fit are with fixed connection.

Because first connection structure and second connection structure interference fit are with fixed connection, compare through a plurality of screw fixed connection with tail-end callipers 2 and casing 1 among the prior art, greatly simplified the assembling process between tail-end callipers 2 and the casing 1, can fix tail-end callipers 2 on casing 1 fast and conveniently.

Referring to fig. 2, 3 and 4, further, the second connecting structure includes a pillar 4 fixed on the inner wall of the housing 1, the first connecting structure includes a sleeve 3 fixed on the outer side of the tail clamp 2, two ends of the sleeve 3 are communicated to form a sleeve hole 31, the sleeve hole 31 extends along the axial direction of the pillar 4, and the pillar 4 is embedded and fixed in the sleeve hole 31. The interference fit of the first connecting structure and the second connecting structure is realized by embedding the upright post 4 in the trepan hole 31 of the sleeve 3, so that the tail clamp 2 is firmly fixed on the upright post 4 to prevent the tail clamp 2 from moving relative to the shell 1.

Referring to fig. 2, 3 and 4, in an embodiment, the housing 1 has a first wall and a second wall opposite to each other, one end of the pillar 4 is fixed to the first wall, and the other end of the pillar extends to abut against the second wall. Preferably, sleeve 3 is equipped with two, and two sleeve 3 distribute in the both sides of tail card 2, and two stand 4 interval tail cards 2 set up, guarantee to be connected between tail card 2 and the stand 4 about balanced to promote the connection stability between tail card 2 and the casing 1.

Referring to fig. 2, 3 and 4, in one embodiment, a reinforcing rib 5 is fixed on the outer side of the upright post 4, one end of the reinforcing rib 5 is fixedly connected to the first wall surface, and the other end abuts against the sleeve 3. The reinforcing ribs 5 can improve the connection strength between the upright post 4 and the shell 1, and can also determine whether the assembly between the sleeve 3 and the upright post 4 is completed, i.e. when the end surface of the sleeve 3 abuts against the end surface of the reinforcing ribs 5, the assembly between the sleeve 3 and the upright post 4 is completed, and the assembly between the sleeve 3 and the upright post 4 is further simplified. Preferably, a plurality of reinforcing ribs 5 are arranged, and the plurality of reinforcing ribs 5 are distributed at intervals along the circumferential direction of the upright post 4, so that the connection strength between the upright post 4 and the shell 1 is further improved; the end face of one end of each reinforcing rib 5, which is far away from the first wall face, is positioned on the same plane, so that one end of each reinforcing rib 5, which is far away from the first wall face, is tightly attached to the end face of the sleeve 3, and the assembly completion between the sleeve 3 and the stand column 4 is facilitated to be judged.

Referring to fig. 2 and 3, further, a first limiting member 6 and a second limiting member 7 are fixedly sleeved on an outer side of the tail clip 2, a gap is formed between the first limiting member 6 and the second limiting member 7, the first limiting member 6 is located in the accommodating cavity 121, the second limiting member 7 is located outside the accommodating cavity 121, and a wall surface of the housing 1, which is provided with the mounting hole 122, is embedded in the gap. Specifically, the first limiting piece 6 and the second limiting piece 7 can be rectangular blocks, and the sleeve 3, the first limiting piece 6 and the second limiting piece 7 are sequentially arranged; the size of the gap between the first limiting member 6 and the second limiting member 7 is the same as the thickness of the wall surface of the housing 1 provided with the mounting hole 122, so that the wall surface of the housing 1 provided with the mounting hole 122 can be embedded in the gap. It should be understood that, when the tail card 2 is subjected to external force and then moves in the axial direction, since the wall surface of the housing 1 provided with the mounting hole 122 is embedded in the gap between the first limiting member 6 and the second limiting member 7, the wall surface of the housing 1 provided with the mounting hole 122 can block the first limiting member 6 and the second limiting member 7 from moving in the axial direction, so that the tail card 2 is prevented from moving in the axial direction after being subjected to external force, and the assembling tightness between the tail card 2 and the housing 1 is improved.

Referring to fig. 2, 3 and 4, preferably, a yielding slot is formed between the upright post 4 and the wall surface of the housing 1 having the mounting hole 122 at an interval, and the first limiting member 6 is embedded in the yielding slot, i.e. the yielding slot can provide sufficient space to accommodate the first limiting member 6. The second limiting member 7 seals the mounting hole 122, so that the second limiting member 7 can prevent sundries such as water or dust from entering the accommodating cavity 121, electric leakage or damage in the junction box is avoided, and the use safety and the service life of the junction box are improved; the area of the plate surface of the second limiting member 7 is larger than the sectional area of the mounting hole 122, so that the second limiting member 7 can seal the mounting hole 122.

Referring to fig. 1, 2 and 5, further, the housing 1 includes a housing 12 having a receiving cavity 121 and a cover plate 11 covering the housing 12 and sealing the receiving cavity 121, the pillar 4 is fixed to a bottom wall of the housing 12, and the pillar 4 is provided with a threaded hole 41 for fixing the cover plate 11 and the housing 12 by a screw. Specifically, shell 12 and apron 11 are made by the plastic, and the one end that the diapire of shell 12 was kept away from to stand 4 extends to and flushes mutually with the terminal surface of the lateral wall of shell 12, guarantees when the laminating of apron 11 is at the terminal surface of the lateral wall of shell 12, and the one end that the diapire of shell 12 was kept away from to stand 4 can the butt on the face of apron 11 to be convenient for connect apron 11 and stand 4. The bottom wall of the shell 12 is provided with four upright posts 4, the four upright posts 4 are distributed at four corners of the shell 12, threaded holes 41 are formed in the four upright posts 4, counter bores 111 are formed in the cover plate 11, and screws penetrate through the counter bores 111 and are in threaded connection with the upright posts 4 through the threaded holes 41, so that the cover plate 11 is fixed on the upright posts 4, and the cover plate 11 is fixedly connected with the shell 12. Preferably, the cover plate 11 is further provided with a wire passing hole 112, and the wire passes through the wire passing hole 112 and is electrically connected with the solar panel.

Referring to fig. 1 and 5, further, the junction box further includes a fixing substrate 8 disposed between the cover plate 11 and the housing 12, and a side edge of the fixing substrate 8 extends out of the accommodating cavity 121. Specifically, the fixed base material 8 may be made of composite cloth, and the fixed base material 8 may be used for connecting with the solar panel in a sewing manner, and may also improve the close degree of adhesion between the cover plate 11 and the housing 12; wherein, the fixing base material 8 is provided with a mounting hole 122 and a line through hole 112 which are the same as the cover plate 11.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A junction box, comprising:

the second connecting structure is fixed on the inner wall of the shell;

2. The junction box of claim 1, wherein the second connecting structure comprises a pillar fixed to an inner wall of the housing, the first connecting structure comprises a sleeve fixed to an outer side of the tail clip, two ends of the sleeve are communicated to form a sleeve hole, the sleeve hole extends along an axial direction of the pillar, and the pillar is embedded and fixed in the sleeve hole.

3. The junction box of claim 2, wherein the housing has a first wall and a second wall opposite to each other, and wherein one end of the pillar is fixed to the first wall and the other end of the pillar extends to abut against the second wall.

4. The junction box of claim 3, wherein a rib is fixed to an outer side of the pillar, one end of the rib is fixedly connected to the first wall surface, and the other end of the rib abuts against the sleeve.

5. The junction box of claim 4, wherein a plurality of reinforcing ribs are arranged, the plurality of reinforcing ribs are distributed at intervals along the circumferential direction of the upright column, and end faces of one ends of the reinforcing ribs, which are far away from the first wall face, are in the same plane.

6. The junction box according to claim 2, wherein a first limiting member and a second limiting member are fixedly sleeved on an outer side of the tail clip, a gap is formed between the first limiting member and the second limiting member, the first limiting member is located in the accommodating cavity, the second limiting member is located outside the accommodating cavity, and a wall surface of the housing, provided with the mounting hole, is embedded in the gap.

7. The junction box of claim 6, wherein a recess is formed between the pillar and the wall of the housing where the mounting hole is formed, and the first retaining member is embedded in the recess.

8. The junction box of claim 6, wherein said second retaining member seals said mounting hole.

9. The junction box according to claim 2, wherein the housing includes a housing having the receiving cavity and a cover plate covering and coupled to the housing and sealing the receiving cavity, the stud is fixed to a bottom wall of the housing, and the stud is provided with a screw hole for fixing the cover plate and the housing by a screw.

10. The junction box of claim 9, further comprising a securing substrate disposed between the cover plate and the housing, a side edge of the securing substrate extending out of the receiving cavity.