Large-current one-to-two junction box

Abstract

The utility model discloses a large-current one-to-two junction box, and belongs to the technical field of junction boxes. The junction box comprises a box body, and the box body comprises a lower box and an upper cover. One end of the input line is detachably inserted into the lower box; the two output lines are detachably connected with the lower box in an inserted mode; and the conductive assembly is arranged in the lower box. According to the large-current one-to-two junction box, the red copper bar and the current terminal can be tightly connected through the conductive bolt and the metal nut, and when the input line inputs current, the current is transmitted to the conductive bolt through the current terminal and then is conducted to the red copper bar through the conductive bolt. The red copper bar adopts a parallel shunt design, current is distributed to the two output lines, so that the effect of dividing one into two is realized, and as the conductive bolt and the metal nut do not need to be embedded, the cost of manufacturing the lower box can be reduced, the lower box is more convenient and faster to assemble, the working efficiency is effectively improved, and the red copper bar is convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a high-current one-to-two junction box. Background Technology

[0002] As a key connection device in the fields of power distribution and signal transmission, the 1-to-2 junction box is widely used in building electrical systems, industrial automation, new energy power generation (such as photovoltaic systems), communication networks, and smart homes. Traditional junction boxes typically adopt a single input and single output design structure, but with the increase in system complexity and the growing demand for distributed systems, the 1-to-2 junction box has emerged to meet the power supply needs of multiple devices.

[0003] Existing junction boxes typically use copper busbars to shunt current. However, these copper busbars are usually secured with bolts, which requires embedding nuts inside the junction box. This process is costly, time-consuming, and results in significant quality loss. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-current one-to-two junction box.

[0005] The technical solution of this utility model is: a high-current splitter junction box, comprising a box body, the box body including a lower box and an upper cover; an input line detachably plugged into the lower box at one end; two output lines detachably plugged into the lower box; a conductive component disposed inside the lower box, the conductive component being electrically connected to the input line and the output line, the conductive component including: a copper busbar fixed inside the lower box; a current terminal disposed at one end of the input line and the output line located inside the lower box, the current terminal being used to connect to the copper busbar; a conductive bolt passing through the current terminal and the copper busbar; and a metal nut disposed at the bottom of the copper busbar and threadedly connected to the conductive bolt.

[0006] Furthermore, a sealing strip is provided at the connection between the upper cover and the lower box.

[0007] Furthermore, the lower box is provided with a positioning groove for placing a metal nut, the shape of which is adapted to the shape of the metal nut.

[0008] Furthermore, the copper busbar is provided with self-tapping threads, and the lower box is provided with a connecting post with the same height as the positioning groove. The top of the connecting post is provided with a threaded groove that is threadedly connected to the self-tapping threads.

[0009] Furthermore, the lower box has a plug-in slot at the connection between the input line and the output line, and a sleeve ring extends outward from the plug-in slot. The sleeve ring has a limiting block, and a connecting ring is sleeved on the input line and the output line. The connecting ring has a limiting groove that can abut against the limiting block.

[0010] Furthermore, both the input line and the output line are fitted with sealing rings to increase the friction with the inner wall of the sleeve ring.

[0011] Furthermore, the lower box has connection points around its perimeter, the upper cover has a through connecting screw, the bottom of the connection point is embedded with a connecting nut, and the connecting screw passes through the upper cover and is threadedly connected to the connection point and the connecting nut.

[0012] Furthermore, the lower box is provided with mounting ears on both sides, which facilitates the installation of the lower box with electrical equipment.

[0013] The beneficial technical effects of this utility model are as follows: The copper busbar and current terminal can be tightly connected via conductive bolts and metal nuts. When current is input to the input line, the current is transmitted through the current terminal to the conductive bolt, and then conducted to the copper busbar through the conductive bolt. The copper busbar adopts a parallel current-sharing design, distributing the current to the two output lines, thus achieving a one-to-two split. Since the conductive bolts and metal nuts do not need to be embedded, the cost of manufacturing the lower box can be reduced, assembly is more convenient and faster, work efficiency is effectively improved, and maintenance of the copper busbar is facilitated. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional schematic diagram of the structural parts of this utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of the structural parts of this utility model;

[0017] Figure 4 This is a three-dimensional structural schematic diagram of the lower box of this utility model;

[0018] Figure 5 This is a bottom view of the structure of this utility model.

[0019] The numbers and letters in the diagram represent the names of the corresponding components:

[0020] 1. Lower box; 11. Upper cover; 12. Insertion slot; 13. Socket ring; 14. Limiting block; 15. Connecting ring; 16. Limiting groove; 17. Sealing ring; 2. Input line; 3. Output line; 4. Copper busbar; 41. Current terminal; 42. Conductive bolt; 43. Metal nut; 44. Positioning groove; 45. Self-tapping thread; 46. Connecting post; 5. Connection point; 51. Connecting screw; 52. Connecting nut; 6. Mounting ear. Detailed Implementation

[0021] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] See appendix Figure 1-5 As shown, a high-current splitter junction box according to Embodiment 1 includes a box body, which includes a lower box 1 and an upper cover 11; an input line 2 that is detachably plugged into the lower box 1 at one end; and two output lines 3 that are detachably plugged into the lower box 1.

[0023] The input line 2 and the output line 3 are connected by a plug-in method, which facilitates the assembly of the junction box, improves assembly efficiency, and makes maintenance and replacement easier.

[0024] A conductive component is located inside the lower box 1 and is electrically connected to the input line 2 and the output line 3. The conductive component includes: a copper busbar 4 fixed inside the lower box 1; a current terminal 41 located at one end of the input line 2 and the output line 3 inside the lower box 1, which is used to connect the copper busbar 4; a conductive bolt 42 passing through the current terminal 41 and the copper busbar 4; and a metal nut 43 located at the bottom of the copper busbar 4 and threadedly connected to the conductive bolt 42.

[0025] The copper busbar 4 can be tightly connected to the current terminal 41 using the conductive bolt 42 and the metal nut 43. When current is input to the input line 2, the current is transmitted through the current terminal 41 to the conductive bolt 42, and then conducted to the copper busbar 4 through the conductive bolt 42. The copper busbar 4 adopts a parallel current splitting design, distributing the current to the two output lines 3, thus achieving a one-to-two split. Since the conductive bolt and the metal nut 43 do not need to be embedded, the cost of manufacturing the lower box 1 can be reduced, and the assembly is more convenient and faster, effectively improving work efficiency and facilitating the maintenance of the copper busbar 4.

[0026] Furthermore, a sealing strip is provided at the connection between the upper cover 11 and the lower box 1.

[0027] The sealing strip can increase the airtightness between the upper cover 11 and the lower box 1, thereby playing a role in waterproofing and dustproofing.

[0028] Furthermore, the lower box 1 is provided with a positioning groove 44 for placing a metal nut 43, the shape of which is adapted to the shape of the metal nut 43.

[0029] The metal nut 43 can be pre-placed in the positioning groove 44 when installing the copper busbar 4. After the metal nut 43 is placed, the copper busbar 4 is placed in the lower box 1, and then the copper busbar 4 and the current terminal 41 can be fixed by the conductive bolt 42. The operation is convenient. The metal nut 43 will not rotate due to the restriction of the positioning groove 44, which makes it easier to screw the conductive bolt 42.

[0030] Furthermore, a self-tapping thread 45 is provided through the copper busbar 4, and a connecting post 46 with the same height as the positioning groove 44 is provided inside the lower box 1. The top of the connecting post 46 is provided with a threaded groove that is threadedly connected to the self-tapping thread 45.

[0031] The self-tapping thread 45 can be threaded to the connecting post 46, increasing the stability of the copper busbar 4. Since the connecting post 46 and the positioning groove 44 have a certain height, the copper busbar 4 will be far away from the bottom of the lower box 1. If the lower box 1 is damaged, leakage will not easily occur.

[0032] Furthermore, the lower box 1 has a plug-in slot 12 at the connection between the input line 2 and the output line 3. The plug-in slot 12 extends outward to provide a sleeve ring 13. The sleeve ring 13 is provided with a limiting block 14. The input line 2 and the output line 3 are fitted with a connecting ring 15. The connecting ring 15 is provided with a limiting groove 16 that can abut against the limiting block 14.

[0033] Input line 2 and output line 3 can be inserted into the lower box 1 through the insertion slot 12. During insertion, the connecting ring 15 will be sleeved on the sleeve ring 13, and the limiting slot 16 will abut against the limiting block 14. When a certain force is applied, the connecting ring 15 will deform, so that the limiting slot 16 will cross the limiting block 14, completing the insertion of input line 2 and output line 3. When the input line 2 and output line 3 are pulled, the limiting block 14 will abut against the limiting slot 16, making it difficult to pull apart, thus limiting the input line 2 and output line 3. The limiting block 14 is preferably triangular in structure.

[0034] Furthermore, both the input line 2 and the output line 3 are fitted with sealing rings 17 to increase the friction with the inner wall of the sleeve ring 13.

[0035] The sealing ring 17 can improve the sealing strength with the inner wall of the sleeve ring 13, thereby increasing the sealing performance of the lower box 1.

[0036] Furthermore, the lower box 1 has connection points 5 around its perimeter, and the upper cover 11 has a through connecting screw 51. A connecting nut 52 is embedded at the bottom of the connection point 5, and the connecting screw 51 passes through the upper cover 11 and is threadedly connected to the connection point 5 and the connecting nut 52.

[0037] After the upper cover 11 is placed on the lower box 1, the connecting screw 51 can be inserted through the upper cover 11 into the connection point 5. Then, by rotating the connecting screw 51, it will engage with the connecting nut 52, thereby fixing the upper cover 11 and the lower box 1.

[0038] Furthermore, mounting ears 6 are provided on both sides of the lower box 1, which facilitate the installation of the lower box 1 with electrical equipment.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A large current splitter junction box characterized by, The utility model relates to a box body, the box body includes lower box (1) with upper cover (11), one end is detachably inserted with input line (2) of lower box (1), two are detachably inserted with output line (3) of lower box (1), the electric conduction assembly in the inside of lower box (1) is connected with input line (2) and output line (3) electricity, the electric conduction assembly includes: the copper bar (4) of being fixed in the inside of lower box (1), the current terminal (41) for connecting copper bar (4) is arranged at the one end of input line (2) and output line (3) in the inside of lower box (1), the electric conduction bolt (42) that penetrates current terminal (41) with copper bar (4), and the metal nut (43) of being arranged at the bottom of copper bar (4) and the threaded connection of electric conduction bolt (42). The connecting part of the upper cover (11) and the lower box (1) is provided with a sealing strip. The lower box (1) is provided with a positioning groove (44) capable of placing the metal nut (43), and the shape of the positioning groove (44) is matched with the shape of the metal nut (43). The copper bar (4) is provided with a self-tapping tooth (45) penetrating thereon, and the lower box (1) is internally provided with a connecting column (46) having the same height as the positioning groove (44), and the top of the connecting column (46) is provided with a threaded groove in threaded connection with the self-tapping tooth (45). The lower box (1) is provided with a plug-in groove (12) at the connecting part of the input line (2) and the output line (3), the plug-in groove (12) is outwardly provided with a sleeving ring (13), the sleeving ring (13) is provided with a limiting block (14), the input line (2) and the output line (3) are provided with a connecting ring (15), and the connecting ring (15) is provided with a limiting groove (16) capable of abutting against the limiting block (14).

2. The high current splitter box of claim 1, wherein, The input line (2) and the output line (3) are both provided with a sealing ring (17) for increasing the friction with the inner wall of the sleeving ring (13).

3. The high current splitter box of claim 1, wherein, The lower box (1) is provided with a connecting point (5) around, the upper cover (11) is provided with a penetrating connecting screw rod (51), the bottom of the connecting point (5) is embedded with a connecting nut (52), and the connecting screw rod (51) is in threaded connection with the connecting point (5) and the connecting nut (52) penetrating the upper cover (11).

4. The high current splitter box of claim 3, wherein, The lower box (1) is provided with a mounting ear (6) on both sides, and the mounting ear (6) facilitates the installation of the lower box (1) and the electrical equipment.

5. The high current splitter box of claim 1, wherein, ​ 6. The high current splitter box of claim 1, wherein, ​ 7. The high current splitter box of claim 1, wherein, ​ 8. The high current splitter box of claim 1, wherein, ​

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