terminal block

Abstract

The terminal box comprises a box body and a conductive strip. The box body provides a wire opening, and a guide plate extends at the opening. The extending end of the guide plate is connected to a lateral connecting plate of the box body. At least two sets of first and second positioning plates form a through space with the guide plate. The through space extends into a wire insertion space defined by the guide plate, the connecting plate and the positioning plates. The conductive strip is specially designed so that, after at least two arms of the conductive strip pass through the through space and enter the wire insertion space, the arms move towards the inside of the wire insertion space.

Description

Technical Field

[0001] This invention relates to a junction box, and more particularly to a junction box with an extremely simple structure, easy assembly, and stable structure. Background Technology

[0002] A junction box, also known as a terminal box, is a connector device used to electrically connect one wire to one or more other wires, or to one or more electrical connector terminals.

[0003] The basic structure of a junction box includes a housing, a wire insertion hole or opening, at least one conductive strip, and at least one spring clip to hold the inserted wire against the conductive strip. The conductive strip facilitates the connection of the wire to other wires or connector terminals. The junction box design typically includes a guide plate at the front of the wire insertion hole or opening in the insertion direction to guide the wire, especially the exposed conductor at the wire's tip. Furthermore, since junction boxes are usually installed close together in applications, necessary insulation components must be provided to prevent contact between the conductive components of the two terminals, which could lead to a short circuit.

[0004] US Patent Publication US2014287630 discloses a connecting terminal with a web-shaped conductor guide. The terminal is in the form of a junction box, with a guide plate extending towards the box body at the wire insertion opening. This guide plate serves to guide the insertion of the wire and isolate the exposed portion of the wire end. A conductive strip forms an upward-opening U-shape. Two sides of the conductive strip are used to electrically connect to a wire inserted into the box through the insertion opening. The end of the guide plate away from the insertion opening forms a free end. A gap is formed between the free end and the bottom plate of the box body. A gap is also formed between one side of the guide plate and the side wall of the box body. One side of the conductive strip and the bottom edge of the adjacent side are respectively embedded into the side gap and the free end gap, thus fixing the conductive strip inside the junction box. The width of the conductive strip, excluding the portion within the gaps, surrounds the space covered by the guide plate, providing a surface for electrical contact with the inserted wire. A spring clip is housed within the junction box, located inside the guide plate on the side away from the gap, to press the wire, i.e., the exposed end of the wire, against the conductive strip, forming a secure electrical contact. On the other side of the U-shape, the junction box also provides a similar structure for inserting another wire to form an electrical connection.

[0005] European Patent Publication EP3320582 discloses a connection terminal, also in the form of a junction box. The junction box is used to electrically connect an inserted wire to a bus. A guide plate is provided below the wire insertion opening, i.e., in front of the insertion direction. A gap is formed between the guide plate and a stop. An L-shaped conductive strip is embedded in the gap. A first spring clip presses the conductive strip against the bus. A second spring clip presses the inserted wire against the conductive strip.

[0006] In existing technology, the conductive strip of a junction box is fixed by being embedded in the gap formed between the conductor plate and the box wall. This configuration allows the conductor plate to be integrally formed with the junction box body, simultaneously providing guidance, insulation, and fixation. However, because this conductor plate extends from the conductor opening and has a free end at the front for the conductive strip to be embedded, the free end is prone to cracking under excessive pressure, causing the conductive strip to detach. This is its drawback.

[0007] The purpose of this invention is to provide a junction box with a novel structure that can overcome the shortcomings of the prior art. Summary of the Invention

[0008] The junction box according to the present invention includes a housing and a conductive strip. The housing provides a wire opening, at which a guide plate extends, and the extended end of the guide plate is laterally connected to the housing via a connecting plate. At least two sets of first and second positioning plates form a passage space with the guide plate, extending through the passage space into a wire insertion space defined by the guide plate, the connecting plate, and the positioning plates. The conductive strip is specially designed so that at least two of its guide arms move into the wire insertion space after passing through the passage space.

[0009] Specifically, the junction box includes a box body and conductive strips disposed inside the box;

[0010] The box includes a side wall and at least one bottom plate. The side wall provides at least two wire openings for inserting a wire. The conductive strip includes a body and two guide arms on both sides, each guide arm pointing to a wire opening.

[0011] At least two guide plates are attached to the box body, each with a wire opening extending in the direction of wire insertion, and the extended end forming a connecting plate on the side, which is connected to the bottom plate;

[0012] At least two sets of first and second positioning plates protrude from the side of the bottom plate. A first passage space is formed between the first positioning plate and the lower end of the corresponding guide plate, and a second passage space is formed between the second positioning plate and one side of the corresponding guide plate. Each set of second positioning plates, the corresponding guide plate, the connecting plate, and the bottom plate define a wire insertion space, which can be accessed through the second passage space. The first and / or second positioning plates can also be the box walls of the box body.

[0013] A portion of the conductive strip body is positioned between the lower end connecting plate of the guide plate and the first positioning plate, and each of the two guide arms of the conductive strip is located in a wire insertion space.

[0014] The thickness of the conductive strip is set so that the two guide arms can pass through the corresponding second passage space and enter the corresponding wire insertion space;

[0015] The feature is that the extension directions of the two guide arms are substantially parallel, and after the two guide arms of the conductive strip enter the wire insertion space, they move from the plane where the second through space is located into the wire insertion space.

[0016] The junction box may also include a spring, disposed in the wire insertion space on the opposite side of the second positioning plate, for pressing the inserted wire against the guide arm.

[0017] The two guide arms of the conductive strip can extend in opposite directions. In this embodiment, the guide arm body can be substantially straight, or include two body segments forming an angle, or include two body segments that maintain a certain distance from each other.

[0018] The two guide arms of the conductive strip can extend in the same direction. In this embodiment, the guide arm body may include two body segments forming an included angle.

[0019] The two guide arms of the conductive strip can extend at an angle. In this embodiment, the guide arm body may include two body segments forming an included angle.

[0020] In a preferred embodiment of the invention, the power for the two guide arms to move into the wire insertion space is preferably provided elastically. In this embodiment, the conductive strip can be pre-formed with one or more small-angle bends in the body portion to provide elasticity. Furthermore, the free ends of the two guide arms can also be bent towards the body.

[0021] The conductive strip may also include a third guide arm attached to the conductive strip body. The conductive strip may also include a fourth guide arm attached to the conductive strip body. The extension directions of the third and fourth guide arms may be the same as or opposite to the extension direction of one of the two guide arms, or they may form an angle.

[0022] The above and other objects and advantages of the present invention will become clearer from the following description of the embodiments of the present invention, with reference to the drawings. Attached Figure Description

[0023] Figure 1 The diagram shows a right-side view of an embodiment of the junction box of the present invention.

[0024] Figure 2 Show Figure 1 Bottom side view of the junction box in the embodiment.

[0025] Figure 3 A side view of a connection plate applicable to the junction box of the present invention is shown.

[0026] Figure 4 A perspective view is shown of a structure combining a conductive strip and a wire guide plate applicable to the junction box of the present invention.

[0027] Figure 5 A schematic diagram of the conductive strip guide arm end structure applicable to the junction box of the present invention is shown.

[0028] Figure 6 Schematic diagrams show various conductive strip shapes applicable to the junction box of the present invention.

[0029] Figure 7 Schematic diagrams of various conductive strip structures applicable to the junction box of the present invention are shown.

[0030] Reference tag list

[0031] 100 Junction Box

[0032] 10 boxes

[0033] 11, 11' wire opening

[0034] 12' guide plate

[0035] 12A, 12A' extension terminals

[0036] 12B, 12B' Second Through Space

[0037] 12C, 12C' First through space

[0038] 13, 13' Positioning Space

[0039] 14, 14' connecting plate

[0040] 16 positioning blocks

[0041] 15' Wire Insertion Space

[0042] 20 Conductive strips

[0043] 21 Ontology

[0044] 22 First guide arm

[0045] 23 Second guide arm

[0046] 24 Third Guide Arm

[0047] 25 Fourth Guide Arm

[0048] 30' springs

[0049] 101 First sidewall

[0050] 102 Second sidewall

[0051] 102A Positioning Plate

[0052] 103 Third sidewall

[0053] 104 Fourth sidewall

[0054] 103A, 104A Second Positioning Plate

[0055] 105 base plate Detailed Implementation

[0056] Several embodiments of the junction box of the present invention are described below with reference to the drawings. The purpose of these embodiments is to enable the reader to understand the basic principles, important features, and general characteristics of the present invention, and they are not intended to limit the scope of the present invention.

[0057] Figure 1 The diagram shows a right-side view of one embodiment of the junction box of the present invention. Figure 2 Show Figure 1 A bottom side view of the junction box of the embodiment. As shown, the junction box 100 of the present invention has a housing 10. The housing 10 typically has a full base plate 105 on the rear side away from the reader to provide insulation and protection. The housing 10 can typically remain open on the front side closer to the reader, providing only the minimum necessary shielding. This design can reduce the thickness of the housing. Of course, providing a full base plate on the front side or adding side covers are also feasible designs. The figure also shows side walls 101-104 forming protrusions around the base plate 105. Figure 1 In one embodiment, the junction box 100 generally includes four sidewalls 101-104.

[0058] The junction box 100 is structurally divided into two slightly symmetrical sides along a longitudinal baseline. Each side provides a wire opening 11, 11' for insertion of external wires (not shown). There are no particular limitations on the wires that can be used in this invention, including various insulated or uninsulated wires, cables, etc. The ends of the wires are typically exposed metal to provide electrical connection. A conductive strip 20 is provided inside the wire openings 11, 11', with the wire insertion direction considered inward. The conductive strip 20 is made of or contains a conductive material. Suitable conductive materials include various metals, conductive plastics, or ceramics. Common conductive materials include copper, silver, gold, iron, nickel, tin, aluminum, cadmium, etc., with iron, aluminum, and copper being the most common. The conductive strip 20 includes a body 21 and a first guide arm 22 and a second guide arm 23 located on either side of the body. The first guide arm 22 and the second guide arm 23 extend toward the openings of the wire openings 11, 11'. Figure 1In the illustrated embodiment, the wire openings 11 and 11' are located on the upper first sidewall 101 of the housing 10. In this embodiment, both the first guide arm 22 and the second guide arm 23 extend toward the first sidewall 101. However, as will be explained below, the extending directions of the first guide arm 22 and the second guide arm 23 are not limited to the direction of the first sidewall 101.

[0059] Guide plates 12 and 12' extend from the inner sides of wire openings 11 and 11' in the direction of wire extension, i.e., inward or downward. Guide plates 12 and 12' preferably extend from the housing portion at the wire openings 11 and 11'. In this embodiment, guide plates 12 and 12' are preferably integrally formed with the housing 10. However, using separate guide plates 12 and 12' on the housing 10 is also feasible. Guide plates 12 and 12' extend inward to the position where the body 21 of the conductive strip 20 is to be assembled. A first positioning plate 102A protrudes from the base plate 105 and is used to support the conductive strip 20. In a preferred embodiment of the invention, the first positioning plate 102A is the second side wall 102 of the housing 10, i.e., the housing wall opposite to the first side wall 101. However, the positioning plate 102A can also be a separately provided plate, and is preferably formed by extending from the housing 10. According to the junction box 100 of the present invention, the extended ends 12A, 12A' of the guide plates 12, 12' maintain a predetermined distance from the positioning plate 102A, and a first passage space 12C, 12C' is formed between them to allow the body 21 of the conductive strip 20 to pass through during assembly. To achieve this purpose, the distance between the extended ends 12A, 12A' of the guide plates 12, 12' and the positioning plate 102A is preferably slightly greater than the thickness of the conductive strip 20, or at least slightly greater than the thickness of the body 21 of the conductive strip 20 corresponding to the portion of the positioning space 13, 13'.

[0060] Multiple second positioning plates 103A and 104A can also be formed on the housing 10, which also protrude from the base plate 105 to support and / or position the conductive strip 20. The multiple positioning plates can also extend from the housing 10 and be integrally formed. However, they can also be the third side wall 103 and the fourth side wall 104.

[0061] Springs 30 and 30' are located inside the housing 10, on the opposite sides of the first guide arm 22 and the second guide arm 23 relative to the guide plates 12 and 12', respectively. They are located on the opposite sides of the two second positioning plates 103A and 103A, and are used to provide pushing force to push the wires that are located inside the guide plates 12 and 12' after being inserted into the junction box 100 towards the first guide arm 22 and the second guide arm 23.

[0062] The junction box 100 according to the present invention further includes connecting plates 14, 14' formed between the extended ends 12A, 12A' of the guide plates 12, 12' and the corresponding box walls. Figure 3A side view of connection plates 14, 14' suitable for use in the junction box 100 of the present invention is shown. The connection portions 14, 14' are generally plate-shaped. Figure 3 In the illustrated embodiment, the connecting plate 14 connects the extension end 12A of the guide plate 12 to the bottom plate 105 of the housing 10 to support the conductive strip 20. Specifically, after the conductive strip 20 passes through the first passage space 12C, 12C' between the extension ends 12A, 12A' of the guide plates 12, 12' and the positioning plate 102A, it enters the positioning space 13, 13' between the connecting plate 14 and the positioning plate 102A. The first passage space 12C, 12C' is an extension of the positioning space 13, 13'.

[0063] On both sides of the housing 10, the guide plate 12, its connecting plate 14, the second positioning plate 103A and the bottom plate 105 define a first wire insertion space; the guide plate 12', its connecting plate 14', the second positioning plate 104A and the bottom plate 105 define a second wire insertion space, so that the wire can be electrically connected to the conductive strip 20 after insertion, so that the two wires form an electrical connection.

[0064] According to the design of the present invention, the width of the conductive strip 20, that is, the width in the front-to-back direction in the figure, is set such that after the conductive strip 20 enters the first passage space 12C, 12C' between the connecting plate 14 and the positioning plate 102A, there will be no portion located in the first passage space 12C, 12C'. This design is purely for manufacturing considerations. If necessary, the width of a portion can also be set to include the positioning space 13, 13' between the extension ends 12A, 12A' of the guide plates 12, 12' and the positioning space 13, 13' between the connecting plates 14, 14' and the positioning plate 102A, but the width of the first guide arm 22 and the second guide arm 23 is only the width of the positioning space 13, 13' between the connecting plates 14, 14' and the positioning plate 102A. However, the disadvantage of this design is that it complicates the shape of the conductive strip 20, which is not conducive to manufacturing.

[0065] Furthermore, the housing 10 also includes second positioning plates 103A and 104A formed on the outer side edges of the guide plates 12 and 12', that is, on the outer side edges whose extension direction is perpendicular to the extension end 12A, and which are at a predetermined distance from the guide plates 12 and 12', for supporting the conductive strip 20. Specifically, this includes the first guide arm 22 and the second guide arm 23 that support the conductive strip 20. In a preferred embodiment of the invention, the second positioning plates 103A and 104A are the third side wall 103 and the fourth side wall 104 of the housing 10, that is, the two housing walls connecting the first side wall 101 and the second side wall 102. However, the second positioning plates 103A and 104A can also be additionally provided plates, and are preferably formed by protrusion from the housing 10. According to the junction box 100 of the present invention, the side edges of the guide plates 12, 12' maintain a predetermined distance from the positioning plates 103A, 104A, and a second passage space 12B, 12B' is formed between them to allow the first guide arm 22 and the second guide arm 23 of the conductive strip 20 to pass through during assembly. To achieve this purpose, the distance between the side edges of the guide plates 12, 12' and the positioning plates 103A, 104A is preferably slightly greater than the thickness of the first guide arm 22 and the second guide arm 23.

[0066] According to a preferred embodiment of the present invention, the first guide arm 22 and the second guide arm 23 of the conductive strip 20 enter the first and second wire insertion spaces after passing through the second passage spaces 12B and 12B' during assembly.

[0067] Furthermore, the first guide arm 22 and the second guide arm 23 of the conductive strip 20 are configured such that after entering the wire insertion space, the first guide arm 22 and the second guide arm 23 move into the wire insertion space from the plane of the second through space 12B, 12B'. Figure 4 The first guide arm 22 and the second guide arm 23 after movement are shown in a side view. Figure 4 A perspective view is shown of a conductive strip and wire guide plate combination structure applicable to the junction box of the present invention. In the moved state, the free ends of the first guide arm 22 and the second guide arm 23, or the portions containing the free ends, will be locked inside the guide plates 12, 12', achieving stable positioning and providing a more stable clamping effect for the inserted wires.

[0068] In a preferred embodiment of the invention, the force for the first guide arm 22 and / or the second guide arm 23 to move into the wire insertion space after passing through the second passage spaces 12B and 12B' is preferably provided elastically. In this embodiment, the conductive strip 20 may have one or more small-angle bends pre-formed in the body 21, such as bends protruding in the opposite direction to the extension of the first guide arm 22 and / or the second guide arm 23. When assembling the conductive strip, the body 21 is flattened by hand or a jig and then inserted into the first passage spaces 12C and 12C' and the second passage spaces 12B and 12B'. After passing through, the external force is released, allowing the conductive strip 20 to return to its original shape, and the first guide arm 22 and the second guide arm 23 will move into the wire insertion space due to the elastic force.

[0069] Another alternative or additional approach is to manufacture the conductive strip 20 such that the free ends of the first guide arm 22 and / or the second guide arm 23 are slightly bent towards the body, forming an angle of slightly less than 90 degrees with the body of the conductive strip 20. During assembly, the first guide arm 22 and the second guide arm 23 are pushed outward by hand or a jig, and the conductive strip 20 is inserted into the first passage space 12C, 12C' and the second passage space 12B, 12B'. After passage, the external force is released, and the conductive strip 20 returns to its original shape. The first guide arm 22 and the second guide arm 23 will then move into the wire insertion space due to the elastic force.

[0070] Another alternative or additional approach is to fabricate the conductive strip 20 such that the free ends of the first guide arm 22 and / or the second guide arm 23 are slightly bent towards the body, such as... Figure 5 As shown. This allows the portion to be locked behind the guide plates 12 and 12' after entering the wire insertion space. Figure 5 A schematic diagram of the conductive strip guide arm end structure applicable to the junction box of the present invention is shown.

[0071] After assembly, the conductive strip 20 will be located inside the wire insertion spaces 15, 15' between the guide plates 12, 12' and the base plate 105. It is not usually located in the first passage spaces 12C, 12C' and / or the second passage spaces 12B, 12B'.

[0072] In a preferred embodiment of the present invention, a positioning block 16 may be provided on the connecting plate 14 at the lower end of the guide plate 20. A positioning notch (not shown) may also be provided at a corresponding position on the body of the conductive strip 20. During assembly, after the conductive strip 20 passes through the first passage spaces 12C, 12C' and the second passage spaces 12B, 12B', a more stable positioning is achieved because the positioning block 16 is embedded in the positioning notch.

[0073] In a preferred embodiment of the present invention, the two guide arms of the conductive strip may extend in opposite directions, in the same direction, or at an angle. Figure 6 Schematic diagrams show various conductive strip shapes suitable for use in the junction box of this invention. Among them, Figure 6 (A) shows that the conductive strip 20 has a straight body shape, and the first guide arm 22 and the second guide arm 23 extend in opposite directions. In this embodiment, two wire openings 11 and 11' are respectively provided on the first side wall 101 and the second side wall 102 of the housing 10. Figure 6 (B) shows that the conductive strip 20 has a U-shaped body and includes two body segments that are kept at a distance from each other. The first guide arm 22 and the second guide arm 23 extend in opposite directions. In this embodiment, two wire openings 11 and 11' are respectively provided on the first side wall 101 and the second side wall 102 of the housing 10. Figure 6 Figure (C) shows that the conductive strip 20 body includes two body segments forming an angle of approximately 90 degrees, extending to the right and in the direction of the reader, respectively. The first guide arm 22 and the second guide arm 23 extend in the same direction. In this embodiment, the two wire openings 11, 11' are both provided on the first sidewall 101 of the housing 10, but the first sidewall 101 includes a portion extending in the thickness direction. Figure 6 Figure (D) shows that the conductive strip 20 body comprises two body segments forming an angle of approximately 90 degrees, extending to the right and in the reader's direction, respectively. The first guide arm 22 and the second guide arm 23 extend in opposite directions. In this embodiment, two wire openings 11, 11' are respectively provided on the first sidewall 101 and the second sidewall 102 of the housing 10. However, the second sidewall 102 includes a portion extending in the thickness direction.

[0074] In addition, the conductive strip 20 may also include a third guide arm 24 and / or a fourth guide arm 25. The third guide arm 24 and / or the fourth guide arm 25 may be provided by a second conductive strip attached to the body of the conductive strip 20. The extension direction of the third guide arm and the fourth guide arm may be the same as or opposite to the extension direction of one of the two guide arms, or may form an angle.

[0075] Figure 7 The diagram shows various conductive strip structures applicable to the junction box of this invention. For example... Figure 7 As shown in (A), the conductive strip 20 includes a third guide arm 24 attached to the body of the conductive strip 20, the extension direction of which is opposite to that of the first guide arm 22 and the second guide arm 23. Figure 7 (B) shows that the conductive strip 20 includes a third guide arm 24 and a fourth guide arm 25 attached to the body of the conductive strip 20, both extending in the opposite direction to the first guide arm 22 and the second guide arm 23. Figure 7 In the example shown in (C), the conductive strip 20 includes a third guide arm 24 attached to the body of the conductive strip 20, which extends in the same direction as the first guide arm 22 and the second guide arm 23. Figure 7 (D) shows that the conductive strip 20 includes a third guide arm 24 and a fourth guide arm 25 attached to the body of the conductive strip 20, both extending in the same direction as the first guide arm 22 and the second guide arm 23. Figure 7 In the example shown in (E), the conductive strip 20 includes a third guide arm 24 attached to the body of the conductive strip 20, which extends in the same direction as the first guide arm 22 and in the opposite direction to the second guide arm 23. Figure 7 (F) shows that the conductive strip 20 includes a third guide arm 24 and a fourth guide arm 25 attached to the body of the conductive strip 20, both of which extend in the opposite direction to the first guide arm 22 and the second guide arm 23.

[0076] In the above embodiments, the number, position, and configuration of the wire openings 11, 11', guide plates 12, 12', springs 30, 30', first positioning plate 102A, and second positioning plates 103A, 104A all require necessary coordination. However, those skilled in the art can easily deduce this. Details need not be elaborated here.

[0077] The above examples illustrate the basic structure, main and auxiliary technical features of the junction box of this invention. Those skilled in the art will readily derive different applications or variations from this description. All such variations fall within the scope of this invention's patent.

Claims

1. A junction box, comprising a box body and a conductive strip disposed within the box; in, The box includes a side wall and at least one bottom plate. The side wall provides at least two wire openings for wire insertion. The conductive strip includes a body and two guide arms on both sides, with each guide arm pointing to a wire opening. At least two guide plates are attached to the housing, each with a wire opening extending in the direction of wire insertion, and the extended ends laterally forming a connecting plate that connects to the bottom plate; At least two sets of first positioning plates and second positioning plates protrude laterally from the base plate. A first passage space is formed between the first positioning plate and the lower end of the corresponding guide plate, and a second passage space is formed between the second positioning plate and one side of the corresponding guide plate. Each set of second positioning plates, the corresponding guide plate, the connecting plate, and the base plate define a wire insertion space, which can be accessed and exited through the second passage space. A portion of the conductive strip body is disposed between the lower end connecting plate of the guide plate and the first positioning plate, and each of the two guide arms of the conductive strip is located within a wire insertion space. The thickness of the conductive strip is set so that the two guide arms can pass through the corresponding second passage space and enter the corresponding wire insertion space. The characteristic feature is that the extension directions of the two guide arms are substantially parallel, and after the two guide arms of the conductive strip enter the wire insertion space, they move from the plane of the second passage space into the interior of the wire insertion space.

2. The junction box as described in claim 1, wherein, The first positioning plate and / or the second positioning plate are the side walls of the box body.

3. The junction box of claim 1 further includes at least one spring disposed in the wire insertion space, on the opposite side of the second positioning plate, for pressing the inserted wire toward the guide arm.

4. The junction box as described in claim 1, wherein, The conductive strip has one or more small-angle bends pre-formed in the body to provide elasticity.

5. The junction box as described in claim 1, wherein, The free ends of the guide arms on both sides of the conductive strip are bent towards the body.

6. The junction box as described in any one of claims 1 to 5, wherein, The two guide arms of the conductive strip extend in opposite directions.

7. The junction box as claimed in claim 6, wherein, The conductive strip body is substantially straight, or includes two body segments forming an angle, or includes two body segments that maintain a certain distance from each other.

8. The junction box as described in any one of claims 1 to 5, wherein, The two guide arms of the conductive strip extend in the same direction, and the guide arm body includes two body segments forming an angle.

9. The junction box as described in any one of claims 1 to 5, wherein, The two guide arms of the conductive strip can extend at an angle, and the guide arm body can include two body segments that form an included angle.

10. The junction box as described in any one of claims 1 to 5, wherein, The conductive strip also includes a third guide arm and / or a fourth guide arm, which are attached to the conductive strip body.

11. The junction box as claimed in claim 10, wherein, The extension direction of the third guide arm and / or the fourth guide arm is the same as or opposite to the extension direction of one of the two side guide arms, or forms an angle.

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