Photovoltaic bus connector

Abstract

The utility model relates to a photovoltaic bus connector, comprising a branch line female end assembly, one end of a branch line female end main body on the branch line female end assembly is provided with a first connecting part, and a bus female terminal is arranged in the branch line female end assembly; one end of the T-shaped connecting main body is clamped with the female end main body, the other end of the T-shaped connecting main body is also provided with a first connecting part, the middle part of the T-shaped connecting main body is clamped with a second connecting part, a bus transition terminal inserted with the bus female terminal is arranged in the T-shaped connecting main body, and a branch female terminal propped against the bus transition terminal is arranged in the second connecting part; and one end of a branch line male end main body of the branch line male end assembly is clamped with the first connecting part on the T-shaped connecting main body, and a bus male terminal inserted with the bus transition terminal is arranged in the branch line male end assembly. According to the photovoltaic bus connector, the branch line female end assembly not only can be connected with the T-shaped connecting assembly, but also can be directly connected with the branch line male end assembly, so that the unified design of a linear connector and a T-shaped connector is realized to the greatest extent, the production cost is reduced, and an operator can assemble the photovoltaic bus connector conveniently.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic connector technology, and in particular to a photovoltaic bus connector. Background Technology

[0002] Photovoltaic connectors are commonly used electrical connection components in photovoltaic systems, mainly of two types: straight connectors and T-type connectors. Straight connectors are generally straight in shape with connection ports at both ends. Their relatively simple construction facilitates straight-line connections between two photovoltaic cables or between photovoltaic modules, ensuring smooth current transmission. They are often used for series connections of photovoltaic modules, linking adjacent photovoltaic panels sequentially to allow current to flow through each module in sequence, forming a complete series circuit. For example, they are widely used in rooftop distributed photovoltaic power generation systems when connecting rows of neatly arranged photovoltaic panels. T-type photovoltaic connectors, on the other hand, resemble the letter "T" in shape. They have one main port and two branch ports. The main port is typically connected to the main line, while the branch ports can be used to branch out branches, enabling current splitting or combining. For example, in photovoltaic system wiring, T-type connectors are used when it is necessary to branch out from the main line to connect other equipment (such as branching out from the main line after combining to connect to an inverter), or when multiple branches are converged (such as combining lines from different strings). They are more commonly used in the layout of more complex large-scale photovoltaic power plants.

[0003] There are many types of existing photovoltaic connectors, and the straight connectors and T-type connectors are designed independently. The two types of connectors require separate molds during the production process, which greatly increases the production cost. Therefore, how to find the common parts of the two and design them in a unified manner to reduce costs has become an urgent problem to be solved in the industry. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the existing technology cannot achieve a unified design for line connectors and T-type connectors.

[0005] To solve the above-mentioned technical problems, this utility model provides a photovoltaic bus connector, comprising:

[0006] A branch line female terminal assembly includes a branch line female terminal housing and a branch line female terminal body. One end of the branch line female terminal body is snapped into the branch line female terminal housing, and the other end of the branch line female terminal body is provided with a first connecting part. The first connecting part includes a first retaining ring and a plug interface. The cross-sectional area of ​​the plug interface is smaller than the cross-sectional area of ​​the retaining ring. The first retaining ring extends into the plug interface with a set of symmetrically arranged first locking blocks. A bus female terminal is provided inside the branch line female terminal body, and the plug-in end of the bus female terminal is provided inside the plug interface.

[0007] A T-shaped connecting body has one end engaged with a first connecting part on the branch female terminal body, and the other end of the T-shaped connecting body also has the first connecting part. A second connecting part is located in the middle of the T-shaped connecting body, and the second connecting part is perpendicular to the first connecting part. The second connecting part includes a large end, a small end, and a second retaining ring. The large end and the small end are respectively located on both sides of the second retaining ring. A set of symmetrically arranged second locking blocks extends from the side of the second retaining ring near the large end. The second connecting part is connected to the T-shaped connecting body through the second locking blocks. A set of symmetrically arranged third locking blocks extends from the side of the second retaining ring near the small end. The third locking blocks extend in the opposite direction to the second locking blocks. A bus transition terminal is provided inside the T-shaped connecting body. The head of the bus terminal is inserted into the bus female terminal. The end of the bus transition terminal away from the bus female terminal is located in the insertion interface of the first connecting part on the T-shaped connecting body. A branch female terminal is provided inside the second connecting part, and the head of the branch female terminal abuts against the bus transition terminal.

[0008] A male branch terminal assembly includes a male branch terminal housing and a male branch terminal body. One end of the male branch terminal body is snapped into the male branch terminal housing, and the other end of the male branch terminal body is snapped into a first connecting part on a T-shaped connecting body. A male bus terminal is provided inside the male branch terminal body, and the male bus terminal is inserted into the tail of the male bus transition terminal.

[0009] In one embodiment of the present invention, the branch line female terminal assembly further includes a first wire clamping device, which is disposed at the end of the branch line female terminal housing away from the branch line female terminal body.

[0010] In one embodiment of the present invention, the branch male terminal assembly further includes a second wire clamping device, which is disposed at the end of the branch male terminal housing away from the branch male terminal body.

[0011] In one embodiment of this utility model, a set of symmetrical first locking holes is provided at the end of the branch line female end shell away from the first clamping device, and a set of third locking blocks is symmetrically provided at the end of the branch line female end body away from the first connecting part. The third locking blocks extend from the retaining ring and in the opposite direction to the extension of the first locking blocks. The first locking holes are adapted to the third locking blocks. A set of symmetrically provided second locking holes is provided at the end of the T-shaped connecting body away from the first connecting part thereon. The second locking holes are adapted to the first locking blocks on the branch line female end body.

[0012] In one embodiment of this utility model, a set of symmetrically arranged third locking holes are provided at the end of the male end shell of the branch line away from the second clamping device, and the third locking holes are adapted to the first locking block on the T-shaped connecting body.

[0013] In one embodiment of this utility model, a bus female terminal inner core is provided inside the branch female terminal body, and multiple bus female terminals are provided, all of which are secured inside the bus female terminal inner core.

[0014] In one embodiment of this utility model, the main body of the branch male terminal is fitted with a bus male terminal inner core, and multiple bus male terminals are provided, each of which is fitted inside the bus male terminal inner core.

[0015] In one embodiment of this utility model, a bus transition inner core is provided inside the T-shaped connecting body, and multiple bus transition terminals are provided, all of which are secured inside the bus transition inner core.

[0016] In one embodiment of this utility model, the second connecting part is fitted with a branch line female end inner core, and multiple branch line female ends are provided, each of which is fitted inside the branch line female end inner core.

[0017] In one embodiment of this utility model, a flat cut is provided at the end of the bus transition near the branch female terminal.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] The photovoltaic bus connector described in this utility model allows the female branch terminal assembly to connect not only to the T-type connector assembly but also directly to the male branch terminal assembly, maximizing the unified design of both straight and T-type connectors. This reduces production costs and facilitates assembly by operators. Furthermore, the second connecting part for connecting branch cables features a double-block spring-loaded design on the T-type connector body, allowing for complete disassembly. This not only meets different interface requirements but also enables quick disassembly, making it extremely convenient. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a partial exploded view of the photovoltaic bus connector of this utility model;

[0022] Figure 2 for Figure 1 An exploded view of the photovoltaic bus connector shown.

[0023] Figure 3 for Figure 1The diagram below shows the connection diagram of each terminal in the photovoltaic bus connector:

[0024] Figure 4 for Figure 1 The front and bottom views of the T-shaped connector body in the photovoltaic bus connector shown;

[0025] Figure 5 for Figure 1 The diagram shows the contact between the bus transition terminal and the branch female terminal in the photovoltaic bus connector.

[0026] Explanation of reference numerals in the accompanying drawings: 1. Branch line female terminal assembly; 110. Branch line female terminal housing; 111. First locking hole; 120. Branch line female terminal body; 121. First connecting part; 1211. First retaining ring; 1212. Plug interface; 1213. First locking block; 130. Bus female terminal; 140. First wire clamping device; 150. Fourth locking block; 2. T-type connecting body; 210. Second connecting part; 211. Large end 212. Small end; 213. Second retaining ring; 214. Second locking block; 216. Branch female terminal; 217. Inner core of branch female terminal; 220. Bus transition terminal; 230. Second locking hole; 240. Third locking block; 3. Branch male terminal assembly; 310. Branch male terminal housing; 311. Third locking hole; 320. Branch male terminal body; 330. Bus male terminal; 340. Second wire clamping device; 4. Flat cut. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0028] Reference Figures 1 to 5 As shown, this utility model provides a photovoltaic bus connector, comprising:

[0029] Branch line female terminal assembly 1 includes a branch line female terminal housing 110 and a branch line female terminal body 120. One end of the branch line female terminal body 120 is snapped into the branch line female terminal housing 110, and the other end of the branch line female terminal body 120 is provided with a first connecting part 121. The first connecting part 121 includes a first retaining ring 1211 and a plug interface 1212. The cross-sectional area of ​​the plug interface 1212 is smaller than the cross-sectional area of ​​the retaining ring. The first retaining ring 1211 extends into the plug interface 1212 with a set of symmetrically arranged first locking blocks 1213. A bus female terminal 130 is provided inside the branch line female terminal body 120, and the plug end of the bus female terminal 130 is provided inside the plug interface 1212.

[0030] The T-shaped connecting body 2 has one end engaged with the first connecting part 121 on the branch line mother end body 120, and the other end of the T-shaped connecting body 2 also has a first connecting part 121. A second connecting part 210 is located in the middle of the T-shaped connecting body 2, and the second connecting part 210 is perpendicular to the first connecting part 121. The second connecting part 210 includes a large end 211, a small end 212, and a second retaining ring 213. The large end 211 and the small end 212 are respectively located on both sides of the second retaining ring 213. A set of symmetrically arranged second locking blocks 214 extend from the side of the second retaining ring 213 closest to the large end 211. The second connecting part 210 is connected via the second locking blocks... Block 214 is connected to the T-shaped connecting body 2. A set of symmetrically arranged third locking blocks 240 extend from the side of the second retaining ring 213 near the small end 212. The third locking blocks 240 extend in the opposite direction to the second locking blocks 214. A bus transition terminal 220 is provided inside the T-shaped connecting body 2. The head of the bus terminal is inserted into the bus female terminal 130. The end of the bus transition terminal 220 away from the bus female terminal 130 is provided in the insertion interface 1212 of the first connecting part 121 on the T-shaped connecting body 2. A branch female terminal 216 is provided inside the second connecting part 210. The head of the branch female terminal 216 abuts against the bus transition terminal 220.

[0031] The branch male terminal assembly 3 includes a branch male terminal housing 310 and a branch male terminal body 320. One end of the branch male terminal body 320 is snapped into the branch male terminal housing 310, and the other end of the branch male terminal body 320 is snapped into the first connecting part 121 on the T-shaped connecting body 2. A bus male terminal 330 is provided inside the branch male terminal body 320, and the bus male terminal 330 is inserted into the tail of the bus transition terminal 220.

[0032] Specifically, in this photovoltaic bus connector, the branch female terminal component 1 can not only be connected to the T-type connection component, but also directly to the branch male terminal component 3, maximizing the unified design of the straight connector and the T-type connector, which helps to reduce production costs and facilitates assembly by the operator. At the same time, the second connection part 210 used to connect the branch cable is arranged on the T-type connection body 2 in the form of a double-block spring wall design, which can be disassembled as a whole. It can not only meet different interface requirements, but also achieve quick disassembly, which is very convenient.

[0033] Furthermore, the branch line mother terminal assembly 1 also includes a first clamping device 140, which is disposed at the end of the branch line mother terminal housing 110 away from the branch line mother terminal body 120.

[0034] Specifically, the first clamping device 140 is used to connect a bus cable at one end.

[0035] Furthermore, the branch male terminal assembly 3 also includes a second wire clamping device 340, which is disposed at the end of the branch male terminal housing 310 away from the branch male terminal body 320.

[0036] Specifically, the first clamping device 140 is used to connect the bus cable at the other end.

[0037] Furthermore, a set of symmetrical first locking holes 111 is provided at the end of the branch line female end housing 110 away from the first clamping device 140, and a set of symmetrical fourth locking blocks 150 is provided at the end of the branch line female end body 120 away from the first connecting part 121. The fourth locking blocks 150 extend from the retaining ring and extend in the opposite direction to the first locking blocks 1213. The first locking holes 111 are adapted to the fourth locking blocks 150. A set of symmetrical second locking holes 230 is provided at the end of the T-shaped connecting body 2 away from the first connecting part 121 thereon. The second locking holes 230 are adapted to the first locking blocks 1213 on the branch line female end body 120.

[0038] Specifically, the branch line mother end shell 110 is connected to the first locking block 1213 of the branch line mother end body 120 through the first locking hole 111, thereby achieving a seamless connection between the branch line mother end shell 110 and the branch line mother end body 120. The T-shaped connecting body 2 is connected to the fourth locking block 150 of the branch line mother end body 120 through the second locking hole 230, thereby achieving a seamless connection between the T-shaped connecting body 2 and the branch line mother end body 120.

[0039] Furthermore, a set of symmetrically arranged third locking holes 311 are provided at the end of the male end housing 310 away from the second clamping device 340. The third locking holes 311 are adapted to the first locking block 1213 on the T-shaped connecting body 2.

[0040] Specifically, the male end shell 310 of the branch line is connected to the first locking block 1213 on the T-shaped connecting body 2 through the third locking hole 311, thereby realizing the seamless connection between the female end shell 110 of the branch line and the T-shaped connecting body 2.

[0041] Furthermore, a set of symmetrically arranged third locking holes 311 are also provided at the end of the T-shaped connecting body 2 away from the first connecting part 121 thereon, and the third locking holes 311 are connected to the first locking block 1213 on the branch line female end body 120.

[0042] Furthermore, the main body 120 of the branch line is fitted with a core of the bus line, and multiple bus lines are provided with a core of the bus line.

[0043] Specifically, the inner core of the bus female terminal is detachably connected to the main body 120 of the branch female terminal, making it easy to replace.

[0044] Furthermore, the branch male terminal body 320 is fitted with a bus male terminal inner core, and multiple bus male terminals 330 are provided, all of which are fitted inside the bus male terminal inner core.

[0045] Specifically, the inner core of the bus male terminal is detachably connected to the main body 320 of the branch male terminal for easy replacement.

[0046] Furthermore, the T-shaped connecting body 2 is fitted with a bus transition inner core, and multiple bus transition terminals 220 are provided, all of which are fitted inside the bus transition inner core.

[0047] Specifically, the inner core of the bus transition is detachably connected to the T-shaped connecting body 2 for easy replacement.

[0048] Furthermore, the second connecting part 210 has a branch line female end inner core 217 inside, and multiple branch line female ends 216 are provided, with each of the multiple branch line female ends 216 being inserted inside the branch line female end inner core 217.

[0049] Specifically, the inner core 217 of the branch line mother end is detachably connected to the second connecting part 210 for easy replacement.

[0050] Furthermore, a flat cutout 4 is provided at one end of the bus transition near the branch female terminal 216.

[0051] Specifically, the head of the branch line female terminal 216 is treated with a flat cut 4. This foolproof design helps to improve the operator's assembly accuracy.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A photovoltaic bus connector, characterized in that, include: A branch line female terminal assembly includes a branch line female terminal housing and a branch line female terminal body. One end of the branch line female terminal body is snapped into the branch line female terminal housing, and the other end of the branch line female terminal body is provided with a first connecting part. The first connecting part includes a first retaining ring and a plug interface. The cross-sectional area of ​​the plug interface is smaller than the cross-sectional area of ​​the retaining ring. The first retaining ring extends into the plug interface with a set of symmetrically arranged first locking blocks. A bus female terminal is provided inside the branch line female terminal body, and the plug-in end of the bus female terminal is provided inside the plug interface. A T-shaped connecting body has one end engaged with a first connecting part on the branch female terminal body, and the other end of the T-shaped connecting body also has the first connecting part. A second connecting part is located in the middle of the T-shaped connecting body, and the second connecting part is perpendicular to the first connecting part. The second connecting part includes a large end, a small end, and a second retaining ring. The large end and the small end are respectively located on both sides of the second retaining ring. A set of symmetrically arranged second locking blocks extends from the side of the second retaining ring near the large end. The second connecting part is connected to the T-shaped connecting body through the second locking blocks. A set of symmetrically arranged third locking blocks extends from the side of the second retaining ring near the small end. The third locking blocks extend in the opposite direction to the second locking blocks. A bus transition terminal is provided inside the T-shaped connecting body. The head of the bus terminal is inserted into the bus female terminal. The end of the bus transition terminal away from the bus female terminal is located in the insertion interface of the first connecting part on the T-shaped connecting body. A branch female terminal is provided inside the second connecting part, and the head of the branch female terminal abuts against the bus transition terminal. A male branch terminal assembly includes a male branch terminal housing and a male branch terminal body. One end of the male branch terminal body is snapped into the male branch terminal housing, and the other end of the male branch terminal body is snapped into a first connecting part on a T-shaped connecting body. A male bus terminal is provided inside the male branch terminal body, and the male bus terminal is inserted into the tail of the male bus transition terminal.

2. The photovoltaic bus connector according to claim 1, characterized in that: The branch line mother terminal assembly further includes a first wire clamping device, which is disposed at the end of the branch line mother terminal housing away from the branch line mother terminal body.

3. The photovoltaic bus connector according to claim 1, characterized in that: The branch male terminal assembly further includes a second wire clamping device, which is disposed at the end of the branch male terminal housing away from the branch male terminal body.

4. The photovoltaic bus connector according to claim 2, characterized in that: The branch line female end shell has a set of symmetrical first locking holes at the end away from the first clamping device. The branch line female end body has a set of symmetrical third locking blocks at the end away from the first connecting part. The third locking blocks extend from the retaining ring and extend in the opposite direction to the first locking blocks. The first locking holes are adapted to the third locking blocks. The T-shaped connecting body has a set of symmetrical second locking holes at the end away from the first connecting part. The second locking holes are adapted to the first locking blocks on the branch line female end body.

5. The photovoltaic bus connector according to claim 3, characterized in that: The male end of the branch line housing is provided with a set of symmetrically arranged second locking holes at the end away from the second clamping device. The second locking holes are adapted to the first locking block on the T-shaped connecting body.

6. The photovoltaic bus connector according to claim 1, characterized in that: The main body of the branch line is fitted with a bus female core, and multiple bus female terminals are provided, each of which is fitted inside the bus female core.

7. The photovoltaic bus connector according to claim 1, characterized in that: The main body of the branch line male terminal is fitted with a bus male terminal inner core, and multiple bus male terminals are provided, each of which is fitted inside the bus male terminal inner core.

8. The photovoltaic bus connector according to claim 1, characterized in that: The T-shaped connecting body is fitted with a bus transition inner core, and multiple bus transition terminals are provided, all of which are fitted inside the bus transition inner core.

9. The photovoltaic bus connector according to claim 1, characterized in that: The second connection part has a branch line female end inner core inside, and there are multiple branch line female ends, all of which are locked inside the branch line female end inner core.

10. The photovoltaic bus connector according to claim 1, characterized in that: The bus transition has a flat cut at one end near the branch line terminal.

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