Copper bar connecting structure of low-voltage power distribution cabinet

Abstract

The utility model discloses a copper bar connecting structure of a low-voltage power distribution cabinet, which is applied to the field of low-voltage power distribution cabinets and comprises a front top frame and a front side frame, a first inner rod and a second inner rod which penetrate to one end of the front top frame and one end of the front side frame are arranged inside the front top frame and the front side frame respectively, and a rear top frame and a rear side frame are arranged on the rear sides of the front top frame and the front side frame respectively. When the copper bar of the low-voltage power distribution cabinet is processed, the length of the front top frame and the length of the front side frame are adjusted through the first inner rod and the second inner rod respectively, then the first insertion rod and the second insertion rod are inserted into the insertion grooves, and therefore the front top frame and the first inner rod are fixed and limited through the first insertion rod. Then, the positions between the rear top frame and the third inner rod and between the rear side frame and the fourth inner rod are adjusted in the same mode till bolts can be inserted into penetrating grooves, then fastening limiting is achieved by rotating a rotary knob, a cushion block is matched with a copper bar for supporting, and through the arrangement, the copper bar supporting device can be conveniently matched with different copper bars for use; and the use flexibility of the connecting structure is improved.

Description

Technical Field

[0001] The utility model belongs to the field of low-voltage distribution cabinets, and particularly relates to a copper bar connection structure for a low-voltage distribution cabinet. Background Art

[0002] Copper bars are mainly used in primary circuits (phase lines, neutral lines, and ground lines with large currents all use copper bars). The connections of primary components with relatively large currents in electric cabinets are all made with copper bars. For example, the main busbars connecting between cabinets in a row of electric cabinets are the main busbars, and the branch busbars distributed to the switching electrical appliances (disconnecting switches, circuit breakers, etc.) on each electric cabinet are the branch busbars. Copper bars can be tinned or bare copper bars. Generally, tinning treatment, embossing treatment, or conductive paste is applied at the connections of copper bars in electric cabinets.

[0003] Currently, the Chinese utility model with the publication number: CN215452068U discloses a copper bar connection structure, including a copper bar and a fixed clamping member for connecting the copper bar. The fixed clamping member includes a fixed outer plate, a buckling card plate arranged parallel to the fixed outer plate, and a connecting slide bar for connecting the fixed outer plate and the buckling card plate. The fixed outer plate is arranged at the end of the connecting slide bar, and the buckling card plate is slidably arranged on the connecting slide bar. A number of reinforcing members are arranged between the fixed outer plate and the buckling card plate. The utility model provides a copper bar connection structure, which avoids affecting the current-carrying capacity of the copper bar, ensures the safe distance between copper bars, and is convenient and firm to install.

[0004] During the use of this copper bar connection structure, it can ensure the convenience and firmness of the installation of longitudinal and transverse copper bars. However, in specific use, the sizes of copper bars are diverse, and this installation structure is inconvenient for using copper bars of different sizes, with limitations in use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a copper bar connection structure for a low-voltage distribution cabinet, which has the advantages of improving the use compatibility, being convenient for cooperating with copper bars of different sizes, and improving the function of use flexibility.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A copper bar connection structure for a low-voltage distribution cabinet includes a front top frame and a front side frame. Inside the front top frame and the front side frame, there are inner rod one and inner rod two that penetrate to one end of the front top frame and the front side frame respectively. At the rear sides of the front top frame and the front side frame, there are a rear top frame and a rear side frame respectively. Inside the rear top frame and the rear side frame, there are inner rod three and inner rod four that penetrate to one end of the rear top frame and the rear side frame respectively. Bolts are fixedly installed on one side of the rear top frame and inner rod three. At the top of the front top frame, there is an insertion rod one that penetrates through inner rod one to the bottom of the front top frame. On one side of the front side frame, there is an insertion rod two that penetrates through inner rod two to the other side of the front side frame. Pad blocks are fixedly installed on the opposite surfaces of the front side frame and inner rod two and the rear side frame and inner rod four.

[0007] Adopting the above technical solution: When carrying out the operation on the copper busbar of the low-voltage switchgear cabinet, the front top frame and the front side frame will respectively adjust their lengths through the first inner rod and the second inner rod. This length is adjusted according to the size of the copper busbar. The first slider is slidably connected to the first chute, which facilitates the cooperation of the first inner rod to slide inside the front top frame and the second inner rod to slide inside the front side frame, so that the pads behind the front side frame and the second inner rod are located at the four corners of the criss-crossed copper busbars. Then, the first inserting rod and the second inserting rod are inserted into the slots, so that the front top frame and the first inner rod are fixed and limited through the first inserting rod, and the front side frame and the second inner rod are fixed and limited through the second inserting rod. Subsequently, the positions between the rear top frame and the third inner rod and between the rear side frame and the fourth inner rod will be adjusted in the same way. The second slider is slidably connected to the second chute, which facilitates the cooperation of the third inner rod to slide inside the rear top frame and the fourth inner rod to slide inside the rear side frame until the bolts can be inserted into the through slots. Subsequently, through the mutual approach of the front top frame, the front side frame, the rear top frame and the rear side frame, the criss-crossed copper busbars are fastened. Then, by rotating the knob, the fastening and limiting are realized. The pads cooperate with the copper busbars for support. This setting facilitates the use in combination with different copper busbars and increases the flexibility of use of this connection structure.

[0008] The present utility model is further configured such that a first slider is fixedly installed on one side of each of the first inner rod and the second inner rod, and a first chute for sliding cooperation with the first slider is provided inside each of the front top frame and the front side frame.

[0009] Adopting the above technical solution: The sliding connection between the first slider and the first chute facilitates the cooperation of the first inner rod to slide inside the front top frame and the second inner rod to slide inside the front side frame.

[0010] The present utility model is further configured such that the number of each of the front top frame and the front side frame is two, and the front top frame, the first inner rod, the front side frame and the second inner rod are fixedly connected to each other.

[0011] Adopting the above technical solution: The mutual connection of the top frame, the first inner rod, the front side frame and the second inner rod facilitates the mutual fixation of this connection structure.

[0012] The present utility model is further configured such that a second slider is fixedly installed on one side of each of the third inner rod and the fourth inner rod, and a second chute for sliding cooperation with the second slider is provided inside each of the rear top frame and the rear side frame.

[0013] Adopting the above technical solution: The sliding connection between the second slider and the second chute facilitates the cooperation of the third inner rod to slide inside the rear top frame and the fourth inner rod to slide inside the rear side frame.

[0014] The present utility model is further configured such that the number of each of the rear top frame and the rear side frame is two, and the rear top frame, the third inner rod, the rear side frame and the fourth inner rod are fixedly connected to each other.

[0015] With the above technical solution: Through the mutual connection of the rear top frame, inner rod three, rear side frame and inner rod four, it is convenient to cooperate with the mutual fixation of this connection structure.

[0016] The present utility model is further configured such that slots for respectively cooperating with the insertion of the first insertion rod and the second insertion rod are provided inside the front top frame and the first inner rod and inside the front side frame and the second inner rod.

[0017] With the above technical solution: Through the insertion cooperation of the slots with the front top frame and the first inner rod and the insertion cooperation of the front side frame and the second inner rod respectively.

[0018] The present utility model is further configured such that one end of the bolt respectively penetrates through the surfaces of the front top frame and the first inner rod and is threadedly connected with a knob.

[0019] With the above technical solution: The knob is used in cooperation with the bolt for fastening.

[0020] In summary, the present utility model has the following beneficial effects:

[0021] When the present utility model is used for the copper bar of the low-voltage power distribution cabinet, the front top frame and the front side frame will respectively adjust the length through the first inner rod and the second inner rod, and then insert the first insertion rod and the second insertion rod into the slots, so that the front top frame and the first inner rod are fixed and limited through the first insertion rod. Subsequently, the positions between the rear top frame and the third inner rod and the rear side frame and the fourth inner rod will be adjusted in the same way until the bolt can be inserted into the through slot. Then, by rotating the knob, fastening and limiting are achieved, and the spacer block cooperates with the copper bar for support. Through this setting, it is convenient to cooperate with different copper bars for use, increasing the flexibility of use of this connection structure. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 It is a schematic diagram of the front top frame and the front side frame of the present utility model;

[0024] Figure 3 It is a schematic diagram of the rear top frame and the rear side frame of the present utility model;

[0025] Figure 4 It is a schematic diagram of the front side frame and the second inner rod of the present utility model;

[0026] Figure 5 It is a schematic diagram of the spacer block of the present utility model;

[0027] Figure 6 It is a schematic diagram of the spacer block and the copper bar of the present utility model.

[0028] Reference numerals: 1, front top frame; 2, front side frame; 3, first inner rod; 4, second inner rod; 5, first chute; 6, slot; 7, first insertion rod; 8, second insertion rod; 9, first slider; 10, rear top frame; 11, third inner rod; 12, rear side frame; 13, fourth inner rod; 14, second slider; 15, second chute; 16, bolt; 17, knob; 18, through slot; 19, cushion block. Detailed implementation manners

[0029] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0030] Embodiment 1:

[0031] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , a copper bar connection structure for a low-voltage power distribution cabinet, including a front top frame 1 and a front side frame 2. Inside the front top frame 1 and the front side frame 2, there are respectively provided a first inner rod 3 and a second inner rod 4 that penetrate to one end of the front top frame 1 and the front side frame 2. At the rear sides of the front top frame 1 and the front side frame 2, there are respectively provided a rear top frame 10 and a rear side frame 12. Inside the rear top frame 10 and the rear side frame 12, there are respectively provided a third inner rod 11 and a fourth inner rod 13 that penetrate to one end of the rear top frame 10 and the rear side frame 12. On one side of the rear top frame 10 and the third inner rod 11, there is fixedly installed a bolt 16. On the top of the front top frame 1, there is provided a first insertion rod 7 that penetrates the first inner rod 3 to the bottom of the front top frame 1. On one side of the front side frame 2, there is provided a second insertion rod 8 that penetrates the second inner rod 4 to the other side of the front side frame 2. On the opposite surfaces of the front side frame 2 and the second inner rod 4 and the rear side frame 12 and the fourth inner rod 13, there are fixedly installed cushion blocks 19. When connecting the copper bars of the low-voltage power distribution cabinet, the front top frame 1 and the front side frame 2 will respectively adjust their lengths through the first inner rod 3 and the second inner rod 4, and then insert the first insertion rod 7 and the second insertion rod 8 into the slot 6, so that the front top frame 1 and the first inner rod 3 are fixed and limited through the first insertion rod 7. Subsequently, the positions between the rear top frame 10 and the third inner rod 11 and the rear side frame 12 and the fourth inner rod 13 will be adjusted in the same way until the bolt 16 can be inserted into the through slot 18, and then by rotating the knob 17, firm limiting is achieved. The cushion blocks 19 cooperate with the copper bars for support. Through this setting, it is convenient to cooperate with different copper bars for use, increasing the flexibility of use of this connection structure.

[0032] Refer to Figure 2 , on one side of the first inner rod 3 and the second inner rod 4, there is fixedly installed a first slider 9. Inside the front top frame 1 and the front side frame 2, there are respectively provided a first chute 5 that cooperates with the first slider 9 for sliding use. By slidingly connecting the first slider 9 with the first chute 5, it is convenient to cooperate with the first inner rod 3 for sliding inside the front top frame 1 and the second inner rod 4 for sliding inside the front side frame 2.

[0033] Refer to Figure 2, the number of the front top frames 1 and the front side frames 2 is two each. The front top frames 1, the first inner rods 3, the front side frames 2 and the second inner rods 4 are fixedly connected to each other. Through the mutual connection of the top frames, the first inner rods 3, the front side frames 2 and the second inner rods 4, it is convenient to cooperate with the mutual fixation of this connection structure.

[0034] Reference Figure 3 , on one side of the third inner rod 11 and the fourth inner rod 13, sliders two 14 are fixedly installed. In the interiors of the rear top frames 10 and the rear side frames 12, sliding grooves two 15 for the sliders two 14 to slide are respectively opened. Through the sliding connection of the sliders two 14 with the sliding grooves two 15, it is convenient to cooperate with the third inner rod 11 to slide inside the rear top frame 10 and the fourth inner rod 13 to slide inside the rear side frame 12.

[0035] Reference Figure 3 , the number of the rear top frames 10 and the rear side frames 12 is two each. The rear top frames 10, the third inner rods 11, the rear side frames 12 and the fourth inner rods 13 are fixedly connected to each other. Through the mutual connection of the rear top frames 10, the third inner rods 11, the rear side frames 12 and the fourth inner rods 13, it is convenient to cooperate with the mutual fixation of this connection structure.

[0036] Reference Figure 2 , in the interiors of the front top frames 1 and the first inner rods 3 and the front side frames 2 and the second inner rods 4, slots 6 for the first inserting rods 7 and the second inserting rods 8 to penetrate respectively are opened. Through the slots 6, the plug-in cooperation of the front top frames 1 and the first inner rods 3 and the plug-in cooperation of the front side frames 2 and the second inner rods 4 are respectively cooperated.

[0037] Reference Figure 3 , one ends of the bolts 16 respectively penetrate to the surfaces of the front top frames 1 and the first inner rods 3 and are threadedly connected with knobs 17. Through the knobs 17, the bolts 16 are used for fastening.

[0038] Brief description of the usage process: When working on the copper bars of the low-voltage switchgear cabinet, the front top frame 1 and the front side frame 2 will respectively adjust their lengths through the first inner rod 3 and the second inner rod 4. This length is adjusted according to the size of the copper bars. The first slider 9 is slidably connected to the first chute 5, facilitating the sliding of the first inner rod 3 inside the front top frame 1 and the sliding of the second inner rod 4 inside the front side frame 2, so that the pads 19 behind the front side frame 2 and the second inner rod 4 are located at the four corners of the crisscrossed copper bars. Then, the first inserting rod 7 and the second inserting rod 8 are inserted into the slots 6, so that the front top frame 1 and the first inner rod 3 are fixed and limited through the first inserting rod 7, and the front side frame 2 and the second inner rod 4 are fixed and limited through the second inserting rod 8. Subsequently, the positions between the rear top frame 10, the third inner rod 11, the rear side frame 12, and the fourth inner rod 13 will be adjusted in the same way. The second slider 14 is slidably connected to the second chute 15, facilitating the sliding of the third inner rod 11 inside the rear top frame 10 and the sliding of the fourth inner rod 13 inside the rear side frame 12 until the bolt 16 can be inserted into the through slot 18. Then, through the mutual approach of the front top frame 1 and the front side frame 2 and the rear top frame 10 and the rear side frame 12, the crisscrossed copper bars are tightened. Subsequently, by rotating the knob 17, the tightening and limiting are achieved. The pads 19 cooperate with the copper bars for support. This setting facilitates the use with different copper bars and increases the flexibility of the use of this connection structure.

[0039] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A copper busbar connection structure for a low-voltage distribution cabinet, comprising a front top frame (1) and a front side frame (2), characterized in that: The front top frame (1) and the front side frame (2) are both provided with an inner rod one (3) and an inner rod two (4) penetrating to one end of the front top frame (1) and the front side frame (2), the rear sides of the front top frame (1) and the front side frame (2) are respectively provided with a rear top frame (10) and a rear side frame (12), the rear top frame (10) and the rear side frame (12) are respectively provided with an inner rod three (11) and an inner rod four (13) penetrating to one end of the rear top frame (10) and the rear side frame (12), the Bolts (16) are fixedly installed on one side of the rear top frame (10) and the inner rod three (11); a plug rod one (7) is provided on the top of the front top frame (1) and passes through the inner rod one (3) to the bottom of the front top frame (1); a plug rod two (8) is provided on one side of the front side frame (2) and passes through the inner rod two (4) to the other side of the front side frame (2); and pads (19) are fixedly installed on the opposite surfaces of the front side frame (2) and the inner rod two (4) and the rear side frame (12) and the inner rod four (13).

2. The copper busbar connection structure of a low-voltage power distribution cabinet according to claim 1, characterized in that: A slider (9) is fixedly mounted on one side of the inner rod (3) and the inner rod (4), and a slide groove (5) for cooperating with the slider (9) is provided inside the front top frame (1) and the front side frame (2).

3. The copper busbar connection structure of a low-voltage power distribution cabinet according to claim 1 is characterized in that: The number of the front top frame (1) and the number of the front side frames (2) are both two, and the front top frame (1), the first inner rod (3), the front side frame (2) and the second inner rod (4) are fixedly connected to each other.

4. The copper busbar connection structure of a low-voltage power distribution cabinet according to claim 1, characterized in that: A sliding block 2 (14) is fixedly mounted on one side of the inner rod 3 (11) and the inner rod 4 (13), and a sliding groove 2 (15) for cooperating with the sliding block 2 (14) is provided inside the rear top frame (10) and the rear side frame (12).

5. The copper busbar connection structure of a low-voltage power distribution cabinet according to claim 1, characterized in that: The number of the rear top frame (10) and the number of the rear side frames (12) are both two, and the rear top frame (10), the inner rod three (11), the rear side frames (12) and the inner rod four (13) are fixedly connected to each other.

6. The copper busbar connection structure of a low-voltage power distribution cabinet according to claim 1, characterized in that: The front top frame (1) and the first inner rod (3) as well as the front side frame (2) and the second inner rod (4) are all provided with slots (6) for respectively cooperating with the first insertion rod (7) and the second insertion rod (8) to penetrate therethrough.

7. The copper busbar connection structure of a low-voltage power distribution cabinet according to claim 1, characterized in that: One end of the bolt (16) penetrates through the front top frame (1) and the surface of the inner rod (3) and is threadedly connected with a knob (17).

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