A photovoltaic junction box with embedded z-terminal

Abstract

The utility model discloses a kind of photovoltaic junction boxes of embedded Z-type terminal, including junction box main part and the terminal being set in junction box main part, the junction box main part includes the fixed part of injection molding integrated and the terminal installation part located above fixed part, the edge of terminal installation part is provided with clamping portion in fixed part, connector is clamped outside clamping portion, the inside of terminal installation part is hollow shell structure, terminal installation part top is provided with cover plate, and the intermediate body structure of center conduction is arranged between terminal installation part and clamping portion.The utility model Z-type terminal forming precision is high, effectively guarantee product size tolerance requirement, high strength, not easy to produce deformation;Junction box is connected with busbar by terminal, and is fixed on photovoltaic glass plate by back adhesive, without auxiliary structure fixation, installation is simple.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic junction box technology, and in particular to a photovoltaic junction box with embedded Z-type terminals. Background Technology

[0002] With the development and application of new energy, people's demand for new energy is increasing day by day. The product upgrade cycle is getting shorter and shorter, and the requirements for product performance and structure are getting higher and higher. At present, the cold heading terminal structure on the market is simple and relatively simple, with low forming precision, which can no longer meet the product structure requirements. In addition, traditional junction boxes require external fixing structures for fixation. Utility Model Content

[0003] To address the aforementioned technical problems, a photovoltaic junction box with embedded Z-type terminals is provided.

[0004] To achieve the above objectives, this utility model discloses a photovoltaic junction box with embedded Z-type terminals, including a junction box body and terminals disposed within the junction box body. The junction box body includes a fixed part integrally molded by injection molding and a terminal mounting part located above the fixed part. The terminal mounting part has a snap-fit ​​part at the edge of the fixed part, and a connector is snapped onto the outside of the snap-fit ​​part. The interior of the terminal mounting part is a hollow shell structure, and a cover plate is provided on the top of the terminal mounting part. A centrally conductive intermediate structure is provided between the terminal mounting part and the snap-fit ​​part.

[0005] Furthermore, a circular interface is provided on the inner side of the intermediate body located in the snap-fit ​​part, and a rectangular interface is provided on the other side of the intermediate body extending to the inner side of the terminal mounting part. A bend is provided between the circular interface and the rectangular interface.

[0006] Furthermore, the terminal includes a Z-shaped connecting segment and a flattened segment, which are connected by a bending segment. The connecting segment corresponds to the circular interface of the intermediate body, and the flattened segment corresponds to the rectangular interface of the intermediate body.

[0007] Furthermore, the fixing part at the bottom of the terminal mounting part is provided with an opening groove whose cross-sectional area is smaller than that of the terminal mounting part.

[0008] Furthermore, the opening groove is provided with a reinforcing rib with the same thickness as the fixing part. The reinforcing rib has a bent structure, and the parallel section of the reinforcing rib is arranged parallel to the flattened section of the terminal.

[0009] Furthermore, the connector includes a male connector, a tube body that abuts against the terminal is provided on the side of the male connector near the snap-fit ​​part, buckles that connect to the snap-fit ​​part are provided on both sides of the tube body, and a threaded sleeve is provided on the side of the male connector away from the snap-fit ​​part.

[0010] Furthermore, the snap-fit ​​portion has a rectangular through hole that penetrates both the snap-fit ​​portion and the fixing portion in a direction perpendicular to the fixing portion, and the rectangular through hole corresponds to the snap-fit ​​position of the connector.

[0011] The beneficial effects of this utility model compared with the prior art are as follows:

[0012] 1. Z-type terminals have high forming precision, effectively ensuring product dimensional tolerance requirements, high strength, and are not prone to deformation;

[0013] 2. The junction box is connected to the busbar via terminals and fixed to the photovoltaic glass panel with adhesive backing. No auxiliary structure is required for fixation, making installation simple and improving installation efficiency. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the junction box body of this utility model.

[0017] Figure 3 This is a schematic diagram of the bottom structure of the junction box body of this utility model.

[0018] Figure 4 This is a cross-sectional view of the present invention.

[0019] Figure 5 This is a schematic diagram of the connector of this utility model.

[0020] Figure 6 This is a schematic diagram of the terminal of this utility model.

[0021] In the diagram: 1 is the main body of the junction box; 11 is the fixing part; 111 is the opening slot; 112 is the reinforcing rib; 12 is the terminal mounting part; 13 is the snap-fit ​​part; 131 is the intermediate body; 132 is the rectangular through hole; 2 is the cover plate; 3 is the connector; 31 is the male connector; 32 is the tube body; 33 is the buckle; 34 is the threaded sleeve. Detailed Implementation

[0022] 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.

[0023] One embodiment of this utility model is as follows: Figure 1 , Figure 2 and Figure 3 As shown, the junction box body 1 includes a fixed part 11 integrally molded by injection molding and a terminal mounting part 12 located above the fixed part 11. The terminal mounting part 12 is provided with a snap-fit ​​part 13 at the edge of the fixed part 11. A connector 3 is snapped onto the outside of the snap-fit ​​part 13. The interior of the terminal mounting part 12 is a hollow shell structure, which facilitates the staff to check the terminal connection. A cover plate 2 is provided on the top of the terminal mounting part 12. A centrally conductive intermediate body 131 structure is provided between the terminal mounting part 12 and the snap-fit ​​part 13. The terminal 4 is placed in the position of the intermediate body 131 and is formed together with the junction box body 1. Through the embedded Z-shaped terminal junction box, one end of the terminal 4 is connected to the photovoltaic module through the busbar, and the other end is connected to the outside through the connector 3. The strength of the junction box is improved and the installation efficiency is improved.

[0024] A circular interface is provided inside the intermediate body 131 located in the snap-fit ​​part 13. The other side of the intermediate body 131 extends to the inside of the terminal mounting part 12 and is provided with a rectangular interface. A bend is provided between the circular interface and the rectangular interface. The structure of the intermediate body 131 covers a part of the terminal 4, providing support and fixation for the terminal 4.

[0025] like Figure 6 As shown, the terminal 4 includes a Z-shaped connecting section 41 and a flattened section 43. The connecting section 41 and the flattened section 43 are connected by a bending section 42. The terminal 4 is obtained by bending the bar material and then performing cold heading, flattening and edge trimming at least 10 times. The connecting section 41 corresponds to the circular interface of the intermediate body 131, and the flattened section 43 corresponds to the rectangular interface of the intermediate body 131. The terminal 4 is placed in a fixture and formed together with the junction box body 1 before the junction box body 1 is formed.

[0026] like Figure 4 As shown, 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 terminal mounting part 12. The opening groove 111 is used to connect the terminal 4 to the busbar. A reinforcing rib 112 with the same thickness as the fixing part 11 is provided in the opening groove 111. The reinforcing rib 112 has a bent structure, and the parallel section of the reinforcing rib 112 is arranged parallel to the flattened section 43 of the terminal 4.

[0027] like Figure 5 As shown, the connector 3 includes a male connector 31. A tube 32 that abuts against the terminal 4 is provided on the side of the male connector 31 near the snap-fit ​​part 13. Buckles 33 that connect to the snap-fit ​​part 13 are provided on both sides of the tube 32. A threaded sleeve 34 is provided on the side of the male connector 31 away from the snap-fit ​​part 13. A cable is provided inside the connector 3. One end of the cable abuts against the terminal. The outside of the cable is fixed to the male connector 31 through the threaded sleeve 34.

[0028] The snap-fit ​​part 13 has a rectangular through hole 132 that passes through the snap-fit ​​part 13 and the fixing part 11 in a direction perpendicular to the fixing part 11. The rectangular through hole 132 corresponds to the position of the buckle 33 of the connector 3, which facilitates the buckle 33 to be squeezed to remove the connector 3.

[0029] 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.

[0030] 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 photovoltaic junction box with embedded Z-type terminals, comprising a junction box body (1) and terminals (4) disposed within the junction box body (1), characterized in that, The junction box body (1) includes a fixed part (11) integrally molded by injection molding and a terminal mounting part (12) located above the fixed part (11). The terminal mounting part (12) is provided with a snap-fit ​​part (13) at the edge of the fixed part (11). A connector (3) is snapped onto the outside of the snap-fit ​​part (13). The interior of the terminal mounting part (12) is a hollow shell structure. A cover plate (2) is provided on the top of the terminal mounting part (12). A centrally conductive intermediate body (131) structure is provided between the terminal mounting part (12) and the snap-fit ​​part (13).

2. A photovoltaic junction box with an embedded Z-type terminal as described in claim 1, characterized in that, A circular interface is provided inside the intermediate body (131) of the snap-fit ​​part (13), and a rectangular interface is provided on the other side of the intermediate body (131) extending to the inner side of the terminal mounting part (12). A bend is provided between the circular interface and the rectangular interface.

3. A photovoltaic junction box with an embedded Z-type terminal as described in claim 1, characterized in that, The terminal (4) includes a Z-shaped connecting section (41) and a flattened section (43). The connecting section (41) and the flattened section (43) are connected by a bending section (42). The connecting section (41) corresponds to the circular interface of the intermediate body (131), and the flattened section (43) corresponds to the rectangular interface of the intermediate body (131).

4. A photovoltaic junction box with an embedded Z-type terminal as described in 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 terminal mounting part (12).

5. A photovoltaic junction box with an embedded Z-type terminal according to claim 4, characterized in that, The opening groove (111) is provided with a reinforcing rib (112) of the same thickness as the fixing part (11). The reinforcing rib (112) is a bent structure, and the parallel section of the reinforcing rib (112) is arranged parallel to the flattened section (43) of the terminal (4).

6. A photovoltaic junction box with an embedded Z-type terminal according to claim 1, characterized in that, The connector (3) includes a male connector (31), a tube (32) that abuts against the terminal (4) is provided on the side of the male connector (31) near the snap-fit ​​part (13), and buckles (33) that connect to the snap-fit ​​part (13) are provided on both sides of the tube (32), and a threaded sleeve (34) is provided on the side of the male connector (31) away from the snap-fit ​​part (13).

7. A photovoltaic junction box with an embedded Z-type terminal as described in claim 1, characterized in that, The snap-fit ​​part (13) has a rectangular through hole (132) that passes through the snap-fit ​​part (13) and the fixing part (11) in a direction perpendicular to the fixing part (11). The rectangular through hole (132) corresponds to the position of the buckle (33) of the connector (3).

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