A terminal box with a new fixed wire mode

Abstract

The utility model discloses a kind of terminal box with novel fixed line mode, including terminal box main body, the terminal box main body includes fixed part of injection molding integrated and the installation part located above fixed part, and the edge of installation part is provided with clamping portion in fixed part, the inside of installation part is hollow shell structure, installation part top is provided with cover plate, and round through hole is provided between installation part and clamping portion, and the fixed part below clamping portion is provided with installation groove communicated with through hole, and the installation groove is provided with wire pressing block, cable is installed in through hole, and the one end of cable is connected with terminal in installation part, and the other end of terminal is fixed in installation part. The utility model is closed structure in the wire inlet position of terminal box fixed wire, and cable is threaded, to ensure that the bottom outer ring of terminal box is integrated, ensure waterproof safety, improve the anti-swing ability of cable.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic junction box technology, and in particular to a junction box with a novel wiring method. Background Technology

[0002] With the development and application of new energy sources, people's demand for new energy sources is increasing day by day. The product upgrade cycle is getting shorter and shorter, and the requirements for product performance and structure are also getting higher and higher. At present, the junction boxes on the market generally adopt the open type when fixing wires, which has relatively weak waterproof effect and wire fixing ability after the product is glued to the board. Utility Model Content

[0003] To address the aforementioned technical problems, a junction box with a novel wiring method is provided.

[0004] To achieve the above objectives, this utility model discloses a junction box with a novel wire fixing method, comprising a junction box body. The junction box body includes a fixing part integrally molded by injection molding and a mounting part located above the fixing part. The mounting part is provided with a snap-fit ​​part at the edge of the fixing part. The mounting part has a hollow shell structure inside. A cover plate is provided on the top of the mounting part. A circular through hole is provided between the mounting part and the snap-fit ​​part. The fixing part below the snap-fit ​​part is provided with a mounting groove communicating with the through hole. A wire pressing block is provided in the mounting groove. A cable is installed in the through hole. One end of the cable located in the mounting part is connected to a terminal, and the other end of the terminal is fixed in the mounting part.

[0005] Furthermore, a fixing ring is provided at one end of the mounting part away from the snap-fit ​​part, which is perpendicular to the fixing part and extends upward, and a rectangular positioning groove is provided at the center of the fixing ring.

[0006] Furthermore, the fixing part at the bottom of the mounting part has an opening groove with a cross-sectional area smaller than that of the terminal mounting part.

[0007] Furthermore, the pressure block includes a sealing part and a limiting part disposed on the sealing part. The limiting part has a semi-circular groove in the center and an anti-slip block extending along the groove axis on the surface of the groove.

[0008] Furthermore, a sealing ring is provided on the surface of the sealing part outside the limiting part.

[0009] Furthermore, the terminal is a flat metal sheet body, with an arc-shaped rivet ring at one end of the terminal near the cable, and a snap-fit ​​groove at the other end of the terminal, the width of which is the same as the thickness of the fixing ring.

[0010] Furthermore, the bottom of the terminal is fixedly connected to the fixing part by resistance welding.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the inlet of the junction box is enclosed and the cable is threaded through to ensure that the outer ring of the bottom of the junction box is integral, thus ensuring waterproof safety and improving the cable's resistance to swaying. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the junction box of this utility model.

[0015] Figure 3 This is a schematic diagram of the main body of the junction box of this utility model.

[0016] Figure 4 This is a structural diagram of the pressure block of this utility model.

[0017] Figure 5 This is a diagram of the terminal structure of this utility model.

[0018] In the diagram: 1 is the junction box body; 11 is the fixing part; 111 is the opening groove; 112 is the fixing ring; 12 is the mounting part; 13 is the snap-fit ​​part; 131 is the through hole; 2 is the cover plate; 3 is the cable; 4 is the wire clamping block; 41 is the sealing part; 41 is the limiting part; 42 is the limiting part; 43 is the anti-slip block; 44 is the sealing ring; 5 is the terminal; 51 is the rivet ring; 52 is the snap-fit ​​groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] One embodiment of this utility model is as follows: Figure 1 and Figure 2As shown, the junction box body 1 includes a fixed part 11 integrally molded by injection molding and an mounting part 12 located above the fixed part 11. The bottom of the fixed part 11 is coated with adhesive to improve the sealing performance with the photovoltaic module. The mounting part 12 is provided with a snap-fit ​​part 13 at the edge of the fixed part 11. The mounting part 12 has a hollow shell structure inside. A cover plate 2 is provided on the top of the mounting part 12. A circular through hole 131 is provided between the mounting part 12 and the snap-fit ​​part 13. The fixed part 11 below the snap-fit ​​part 13 is provided with a mounting groove that communicates with the through hole 131. A wire pressing block 4 is provided in the mounting groove. A cable 3 is installed in the through hole 131. One end of the cable 3 located in the mounting part 12 is connected to a terminal 5. The other end of the terminal 5 is fixed in the mounting part 12. The inlet of the junction box at the wire fixing point adopts a closed structure to ensure that the outer ring of the bottom of the junction box is integral, ensuring waterproof safety and improving the anti-sway capability of the cable.

[0021] like Figure 3 As shown, a fixing ring 112 is provided at one end of the mounting part 12 away from the snap-fit ​​part 13, which is perpendicular to the fixing part 11 and extends upward. A rectangular positioning groove is provided in the center of the fixing ring 112. The fixing ring 112 enhances the connection strength of the terminal 5 and prevents it from being detached from the cable 3 by external force.

[0022] An opening groove 111 with a cross-sectional area smaller than that of the terminal mounting part 12 is provided on the fixing part 11 at the bottom of the mounting part 12, and the terminal 5 is connected to the bus bar here.

[0023] like Figure 4 As shown, the wire pressing block 4 includes a sealing part 41 and a limiting part 42 provided on the sealing part 41. The limiting part 42 has a semi-circular groove in the center and an anti-sliding block 43 extending along the groove axis on the surface of the groove. The cable is fixed inside the snap-fit ​​part 13 by threading. The anti-sliding block 43 in the wire pressing block 4 squeezes and limits the cable.

[0024] A sealing ring 44 is provided on the surface of the sealing part 41 outside the limiting part 42. When the wire pressing block 4 is fixed at the bottom of the junction box, the sealing ring is squeezed and deformed to achieve sealing, thereby improving the waterproof performance of the junction box.

[0025] like Figure 5 As shown, terminal 5 includes a flat metal sheet body. One end of terminal 5 near cable 3 is provided with an arc-shaped rivet ring 51. The other end of terminal 5 is provided with a snap-fit ​​groove 52. The width of snap-fit ​​groove 52 is the same as the thickness of fixing ring 112. Now snap-fit ​​groove 52 is snapped into the positioning groove of fixing ring 112, and then rivet ring 51 is fixedly connected to the conductive section of cable 3.

[0026] The bottom of terminal 5 is fixedly connected to the fixing part 11 by resistance welding, which further improves the connection strength of the terminal.

[0027] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0028] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A junction box with a novel wiring method, comprising a junction box body (1), characterized in that, The junction box body (1) includes a fixed part (11) integrally molded by injection molding and an installation part (12) located above the fixed part (11). The installation part (12) is provided with a snap-fit ​​part (13) at the edge of the fixed part (11). The installation part (12) has a hollow shell structure inside. A cover plate (2) is provided on the top of the installation part (12). A circular through hole (131) is provided between the installation part (12) and the snap-fit ​​part (13). The fixed part (11) below the snap-fit ​​part (13) is provided with an installation groove that communicates with the through hole (131). A wire pressing block (4) is provided in the installation groove. A cable (3) is installed in the through hole (131). One end of the cable (3) located in the installation part (12) is connected to a terminal (5). The other end of the terminal (5) is fixed in the installation part (12).

2. A junction box with a novel wiring method according to claim 1, characterized in that, The mounting part (12) is provided with a fixing ring (112) that is perpendicular to the fixing part (11) and extends upward at one end away from the snap-fit ​​part (13). A rectangular positioning groove is provided in the center of the fixing ring (112).

3. A junction box with a novel wiring method according to claim 1, characterized in that, An opening groove (111) with a cross-sectional area smaller than that of the terminal mounting part (12) is provided on the fixing part (11) at the bottom of the mounting part (12).

4. A junction box with a novel wiring method according to claim 1, characterized in that, The pressure block (4) includes a sealing part (41) and a limiting part (42) provided on the sealing part (41). The limiting part (42) has a semi-circular groove in the center and an anti-slip block (43) extending along the groove axis on the surface of the groove.

5. A junction box with a novel wiring method according to claim 4, characterized in that, A sealing ring (44) is provided on the surface of the sealing part (41) outside the limiting part (42).

6. A junction box with a novel wiring method according to claim 1, characterized in that, The terminal (5) includes a flat metal sheet body. One end of the terminal (5) near the cable (3) is provided with an arc-shaped rivet ring (51), and the other end of the terminal (5) is provided with a snap-fit ​​groove (52). The width of the snap-fit ​​groove (52) is the same as the thickness of the fixing ring (112).

7. A junction box with a novel wiring method according to claim 6, characterized in that, The bottom of the terminal (5) is fixedly connected to the fixing part (11) by resistance welding.

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