A kind of internal conversion structure based on the horizontal and vertical placement of copper bars in low-voltage switch cabinet

Abstract

The present application relates to a conversion structure based on the horizontal and vertical placement of copper bars in a low-voltage switch cabinet, which belongs to the technical field of switch cabinets. The conversion structure includes a mounting plate and a terminal block, wherein the mounting plate is fixed in the switch cabinet, and a connecting hole is provided on the mounting plate; the terminal block is used for fixing the copper bar, and a cylindrical connecting rod is fixedly connected to the terminal block, and the connecting rod is slidably connected in the connecting hole; a limiting disk is provided at one end of the connecting rod away from the terminal block, and a connecting spring is sleeved on the connecting rod, and the connecting spring is located between the mounting plate and the limiting disk; a positioning groove is provided on the surface of the mounting plate facing the terminal block, and a positioning block that is plugged into the positioning groove is provided on the terminal block, and a conductive sheet is provided on the bottom of the positioning groove and the terminal block. The present application can convert the arrangement of the copper bar from horizontal to vertical or from vertical to horizontal, effectively improving the conversion efficiency of the copper bar block.

Description

Technical Field

[0001] The present application relates to the technical field of switch cabinets, and in particular to an internal conversion structure based on the horizontal and vertical placement of copper bars in a low-voltage switch cabinet. Background Art

[0002] The copper busbar in the switch cabinet plays a role in transmitting power and connecting the switch cabinet power supply system in the power system. The copper busbar has good electrical conductivity and high thermal stability, so it is widely used in the power system. The arrangement of the copper busbar is relatively simple, generally including vertical and horizontal placement; the vertical copper busbar can save space or meet special wiring requirements. This installation method can make the cables in the switch cabinet more neatly arranged and easy to connect and maintain; the horizontal copper busbar can make the current more evenly distributed on the entire copper busbar, reduce contact resistance and temperature rise, and improve the reliability and service life of the equipment.

[0003] However, the existing copper busbar is fixed to the mounting plate in the switch cabinet with screws. When the arrangement of the copper busbar is changed, the copper busbar needs to be removed and the direction of the connection terminal on the mounting plate needs to be changed, resulting in low conversion efficiency of the copper busbar. Summary of the invention

[0004] In order to effectively improve the conversion efficiency of the copper busbar, the present application provides an internal conversion structure based on the horizontal and vertical placement of the copper busbar in the low-voltage switch cabinet.

[0005] The purpose of this application is to provide a copper busbar horizontally placed vertically in a low-voltage switch cabinet and internal conversion structure, which adopts the following technical solution:

[0006] A structure for internal conversion based on the horizontal and vertical placement of copper bars in a low-voltage switch cabinet, comprising a mounting plate and a wiring terminal, wherein the mounting plate is fixed in the switch cabinet, and a connecting hole is provided on the mounting plate; the wiring terminal is used for fixed connection of the copper bar, and a cylindrical connecting rod is fixedly connected to the wiring terminal, and the connecting rod is slidably connected in the connecting hole; a limiting disk is provided at one end of the connecting rod away from the wiring terminal, and a connecting spring is sleeved on the connecting rod, and the connecting spring is located between the mounting plate and the limiting disk; a positioning groove is provided on the surface of the mounting plate facing the wiring terminal, and a positioning block is provided on the wiring terminal to be plugged into the positioning groove, and a conductive sheet is provided on the bottom of the positioning groove and the wiring terminal.

[0007] By adopting the above technical solution, when it is necessary to change the arrangement of the copper busbar, the copper busbar is pulled away from the mounting plate so that the positioning block is separated from the positioning groove; an external force is applied to the copper busbar so that the copper busbar rotates 90 degrees with the connecting rod as the axis, and then the copper busbar is loosened so that the positioning block is inserted into the positioning groove under the action of the connecting spring, so that the conductive sheet of the terminal block is connected to the conductive sheet on the mounting plate, thereby converting the arrangement of the copper busbar from horizontal to vertical or from vertical to horizontal, effectively improving the conversion efficiency of the copper busbar.

[0008] Optionally, it also includes an auxiliary rod and a driving component, wherein the auxiliary rod is slidably connected in the switch cabinet, and the auxiliary rod is located on the side of the mounting plate facing the limit plate, and the auxiliary rod is provided with a pushing rod abutting the limit plate; the driving component is located in the switch cabinet, and the driving component is used to drive the auxiliary rod close to or away from the mounting plate.

[0009] By adopting the above technical solution, the auxiliary rod is moved close to the mounting plate by using the driving component, so that the push rod can abut against the limit plate and move toward the mounting plate, so as to achieve the purpose of separating the positioning block from the positioning groove, and to facilitate rotating the copper bar to change the arrangement of the copper bar; the auxiliary rod is moved away from the mounting plate by using the driving component, so that the positioning block can be inserted into the positioning groove under the action of the connecting spring, so as to achieve the purpose of electrically connecting the copper bar and the mounting plate. Since the interval between the mounting plate and the inner wall of the switch cabinet is small, it is difficult for maintenance personnel to press on the limit plate; there are safety hazards in directly pulling the copper bar manually, and the conversion of the copper bar will be safer through the driving component.

[0010] Optionally, the driving assembly includes a screw and a sliding block, the screw is rotatably connected in the switch cabinet, and the screw is arranged along the sliding direction of the auxiliary rod, one end of the screw is located on the side of the mounting plate away from the auxiliary rod; the sliding block is fixedly connected to one end of the auxiliary block, and the sliding block cooperates with the screw thread.

[0011] By adopting the above technical solution, the rotation of the screw rod will drive the sliding block to move along the length direction of the screw rod, and the movement of the sliding block will drive the auxiliary rod and the push rod to move, thereby achieving the purpose of pushing the limit plate to move toward the mounting plate.

[0012] Optionally, it also includes a guide rod, which is fixed in the switch cabinet and parallel to the screw rod; the other end of the auxiliary block is fixedly connected to a guide block, and the guide block is slidably connected to the guide rod; a knob is provided at one end of the screw rod.

[0013] By adopting the above technical solution, the guide rod and the guide block cooperate to guide the movement of the auxiliary rod, thereby making it easier for the screw rod to drive the auxiliary rod to move; the knob makes the rotation of the screw rod more convenient.

[0014] Optionally, the end of the push rod facing the limiting disk is semi-spherical.

[0015] By adopting the above technical solution, the shape design of the push rod can reduce the contact area between the push rod and the limit plate. When the end of the push rod presses against the limit plate, the friction resistance encountered by the rotation of the copper bar is smaller, thereby effectively improving the conversion efficiency of the copper bar.

[0016] Optionally, it also includes a positioning hole opened on the copper busbar, a mounting strip is fixedly connected to the wiring terminal, a positioning rod is fixedly connected to the mounting strip, and the positioning rod is plugged into the positioning hole; a limiting component is provided on the mounting strip for limiting the positioning rod within the positioning hole.

[0017] By adopting the above technical solution, the positioning rod and the positioning hole are used to cooperate to preliminarily position the fixed connection of the copper busbar on the terminal block; and then the positioning rod is restricted in the positioning hole by the limiting component, so that the copper busbar is fixed on the terminal block more firmly.

[0018] Optionally, the limiting component includes a limiting groove and a limiting block, the limiting groove is opened on the side of the mounting bar, one end of the limiting block is slidably connected to the limiting groove, and the other end of the limiting block abuts and cooperates with the surface of the copper busbar away from the mounting bar.

[0019] By adopting the above technical solution, the limiting groove and the limiting block cooperate with each other to guide the moving direction of the limiting block; when the copper busbar is placed on the mounting bar, the limiting block is moved so that its other end is pressed against the surface of the copper busbar, thereby achieving the purpose of fixing the copper busbar on the wiring terminal.

[0020] Optionally, a limiting spring is provided in the limiting groove, one end of the limiting spring is fixedly connected to the bottom of the limiting groove, and the other end of the limiting spring is fixedly connected to the limiting block; the surface of the limiting block away from the mounting bar is an inclined surface.

[0021] By adopting the above technical solution, when the copper busbar is placed on the mounting bar, the side surface of the copper busbar will press against the inclined surface of the limiting block so that the two limiting blocks are separated from each other; when the positioning hole of the copper busbar is sleeved on the positioning rod, the other end of the limiting block will press against the surface of the copper busbar away from the mounting bar under the action of the limiting spring, thereby making it easier to fix the copper busbar on the mounting bar.

[0022] Optionally, a plurality of balls are rollingly connected to the groove wall of the limiting groove.

[0023] By adopting the above technical solution, the ball bearing can make it easier for the limiting block to slide in the limiting groove.

[0024] In summary, this application at least includes the following beneficial technical effects:

[0025] 1. When the arrangement of the copper bar needs to be changed, pull the copper bar away from the mounting plate to separate the positioning block from the positioning groove; apply external force to the copper bar to rotate it 90 degrees with the connecting rod as the axis, and then loosen the copper bar so that the positioning block is inserted into the positioning groove under the action of the connecting spring, so that the conductive sheet of the terminal block is connected with the conductive sheet on the mounting plate, thereby changing the arrangement of the copper bar from horizontal to vertical or from vertical to horizontal, effectively improving the conversion efficiency of the copper bar;

[0026] 2. The positioning rod cooperates with the positioning hole to preliminarily position the fixed connection of the copper busbar on the terminal block; the positioning rod is then restricted in the positioning hole by the limiting component, so that the copper busbar is more firmly fixed on the terminal block. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of an internal conversion structure based on a copper busbar placed horizontally and vertically in a low-voltage switch cabinet in an embodiment of the present application;

[0028] Figure 2 It is a partial structural schematic diagram of an embodiment of the present application, mainly used to show the connection schematic diagram of the mounting plate, the auxiliary rod and the driving assembly;

[0029] Figure 3 It is a partial structural cross-sectional view of an embodiment of the present application, mainly used to show the connection diagram of the mounting plate, the wiring terminal and the connecting rod;

[0030] Figure 4 It is a partial structural cross-sectional view of an embodiment of the present application, which is mainly used to show the connection diagram of the wiring terminals, mounting strips and copper busbars.

[0031] Explanation of the reference numerals: 1. Mounting plate; 2. Wiring terminal; 3. Connecting hole; 4. Connecting rod; 5. Limiting plate; 6. Connecting spring; 7. Positioning groove; 8. Positioning block; 9. Conductive sheet; 10. Auxiliary rod; 11. Driving assembly; 111. Screw rod; 112. Sliding block; 12. Push rod; 13. Guide rod; 14. Guide block; 15. Knob; 16. Positioning hole; 17. Mounting strip; 18. Positioning rod; 19. Limiting assembly; 191. Limiting groove; 192. Limiting block; 20. Limiting spring; 21. Ball bearing; 22. Cabinet body; 23. Cabinet door. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-4 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] The embodiment of the present application discloses a structure for internal conversion based on the horizontal and vertical placement of copper bars in a low-voltage switch cabinet. Figure 1 and Figure 2 The switch cabinet includes a cabinet body 22, one side of which is provided with an opening, and a cabinet door 23 is hingedly connected to the cabinet body 22 at the opening. The conversion structure includes a mounting plate 1 and a wiring terminal 2. The mounting plate 1 is fixed to the inner wall of the cabinet body 22 away from the cabinet door 23 by screws, and a gap is left between the mounting plate 1 and the inner wall of the cabinet body 22 to facilitate better heat dissipation of the electronic components on the mounting plate 1; the wiring terminal 2 is fixed to the mounting plate 1, and the wiring terminal 2 can be fixedly connected to the copper busbar.

[0034] Reference Figure 2 and Figure 3 In order to effectively improve the conversion efficiency of the copper busbar, a connecting hole 3 is provided on the mounting plate 1; a cylindrical connecting rod 4 is fixed on the terminal 2 by welding, and the connecting rod 4 is slidably connected in the connecting hole 3; a limit plate 5 is provided on the end of the connecting rod 4 away from the terminal 2 by welding, and a connecting spring 6 is sleeved on the connecting rod 4, and the connecting spring 6 is located between the mounting plate 1 and the limit plate 5, that is, one end of the connecting spring 6 abuts against the surface of the mounting plate 1, and the other end of the connecting spring 6 abuts against the surface of the limit plate 5; a positioning groove 7 is provided on the surface of the mounting plate 1 facing the terminal 2, and a positioning block 8 is integrally formed on the terminal 2, and the positioning block 8 is plugged into the positioning groove 7, and the positioning block 8 and the terminal 2 are both made of conductive blocks; a conductive sheet 9 is fixedly connected to the bottom of the positioning groove 7 and the terminal 2.

[0035] Reference Figure 2 and Figure 3 In order to make the conversion process of the copper busbar safer, the conversion structure also includes an auxiliary rod 10 and a driving assembly 11. The auxiliary rod 10 is slidably connected in the cabinet body 22, and the auxiliary rod 10 is located on the side of the mounting plate 1 facing the limit plate 5. A push rod 12 is fixed on the auxiliary rod 10 by welding, and the push rod 12 abuts against the limit plate 5; the driving assembly 11 is located in the switch cabinet, and the driving assembly 11 is used to drive the auxiliary rod 10 to approach or move away from the mounting plate 1. Among them, the end of the push rod 12 facing the limit plate 5 is semi-spherical, and the shape design of the push rod 12 can reduce the contact area between the push rod 12 and the limit plate 5. When the end of the push rod 12 presses against the limit plate 5, the friction resistance of the copper busbar's rotation is smaller, thereby effectively improving the conversion efficiency of the copper busbar.

[0036] In this embodiment, the auxiliary rod 10 is moved close to the mounting plate 1 by driving the assembly 11, so that the push rod 12 can move against the limit plate 5 toward the mounting plate 1, so as to separate the positioning block 8 from the positioning groove 7, and to rotate the copper bar to change the arrangement of the copper bar; the auxiliary rod 10 is moved away from the mounting plate 1 by driving the assembly 11, so that the positioning block 8 can be inserted into the positioning groove 7 under the action of the connecting spring 6, so as to achieve the purpose of electrical connection between the copper bar and the mounting plate 1. Since the interval between the mounting plate 1 and the inner wall of the switch cabinet is small, it is difficult for the maintenance personnel to press on the limit plate 5; there is a safety hazard in directly pulling the copper bar manually, and the conversion of the copper bar will be safer by driving the assembly 11.

[0037] Reference Figure 2 and Figure 3 In order to achieve the purpose of pushing the limit plate 5 to move toward the mounting plate 1, the driving assembly 11 includes a screw rod 111 and a sliding block 112. The screw rod 111 is rotatably connected to the cabinet 22, and the screw rod 111 is arranged along the sliding direction of the auxiliary rod 10. One end of the screw rod 111 is located on the side of the mounting plate 1 away from the auxiliary rod 10; the sliding block 112 is fixedly connected to one end of the auxiliary block, and the sliding block 112 is threadedly matched with the screw rod 111. The rotation of the screw rod 111 will drive the sliding block 112 to move along the length direction of the screw rod 111, and the movement of the sliding block 112 will drive the auxiliary rod 10 and the push rod 12 to move, so as to achieve the purpose of pushing the limit plate 5 to move toward the mounting plate 1.

[0038] Reference Figure 2 and Figure 3 In order to make the conversion process of the copper bar more convenient, the conversion structure also includes a guide rod 13, which is fixed in the switch cabinet and parallel to the screw rod 111; the other end of the auxiliary block is fixedly connected to the guide block 14 by welding, and the guide block 14 is slidably connected to the guide rod 13; one end of the screw rod 111 is fixedly connected to the knob 15 by welding. The guide rod 13 and the guide block 14 cooperate to guide the movement of the auxiliary rod 10, so that the screw rod 111 drives the movement of the auxiliary rod 10 more easily; the knob 15 makes the rotation of the screw rod 111 more convenient.

[0039] Reference Figure 2 and Figure 4In order to make the copper busbar more convenient to fix, the conversion structure also includes a positioning hole 16 opened on the copper busbar, a mounting bar 17 is fixedly connected to the wiring terminal 2, a positioning rod 18 is fixedly connected to the mounting bar 17, and the positioning rod 18 is plugged and matched with the positioning hole 16; a limiting component 19 for limiting the positioning rod 18 in the positioning hole 16 is provided on the mounting bar 17. Through the matching of the positioning rod 18 and the positioning hole 16, the fixed connection of the copper busbar on the wiring terminal 2 can be initially positioned; and then the positioning rod 18 is limited in the positioning hole 16 by the limiting component 19, so that the copper busbar is fixed on the wiring terminal 2 more firmly.

[0040] Reference Figure 2 and Figure 4 In order to achieve the purpose of fixing the copper bar on the terminal block 2, the limiting component 19 includes a limiting groove 191 and a limiting block 192. The limiting groove 191 is opened on the side of the mounting bar 17, one end of the limiting block 192 is slidably connected to the limiting groove 191, and the other end of the limiting block 192 is abutted against the surface of the copper bar away from the mounting bar 17. Among them, a plurality of balls 21 are rollingly connected to the groove wall of the limiting groove 191, and the balls 21 can make it easier for the limiting block 192 to slide in the limiting groove 191; through the matching of the limiting groove 191 and the limiting block 192, the moving direction of the limiting block 192 can be guided; when the copper bar is placed on the mounting bar 17, the limiting block 192 is moved so that its other end is pressed against the surface of the copper bar, so as to achieve the purpose of fixing the copper bar on the terminal block 2.

[0041] Reference Figure 2 and Figure 4 In order to make it easier to fix the copper bar on the mounting bar 17, a limiting spring 20 is provided in the limiting groove 191, one end of the limiting spring 20 is fixedly connected to the bottom of the limiting groove 191, and the other end of the limiting spring 20 is fixedly connected to the limiting block 192; the surface of the limiting block 192 away from the mounting bar 17 is an inclined surface. When the copper bar is placed on the mounting bar 17, the side of the copper bar will press against the inclined surface of the limiting block 192 so that the two limiting blocks 192 are away from each other; when the positioning hole 16 of the copper bar is sleeved on the positioning rod 18, the other end of the limiting block 192 will press against the surface of the copper bar away from the mounting bar 17 under the action of the limiting spring 20, so that the copper bar is more easily fixed on the mounting bar 17.

[0042] The implementation principle of the flat-to-vertical internal conversion structure of the copper busbar in the low-voltage switch cabinet according to an embodiment of the present application is as follows: when the arrangement of the copper busbar needs to be changed, the copper busbar is pulled away from the mounting plate 1 so that the positioning block 8 is separated from the positioning groove 7; an external force is applied to the copper busbar so that the copper busbar rotates 90 degrees around the connecting rod 4, and then the copper busbar is loosened so that the positioning block 8 is inserted into the positioning groove 7 under the action of the connecting spring 6, so that the conductive sheet 9 of the terminal block 2 is connected to the conductive sheet 9 on the mounting plate 1, thereby converting the arrangement of the copper busbar from flat to vertical or from vertical to flat, effectively improving the conversion efficiency of the copper busbar.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A copper busbar vertically placed internal conversion structure in a low-voltage switch cabinet, characterized in that: The invention comprises a mounting plate (1) and a wiring terminal (2), wherein the mounting plate (1) is fixed in a switch cabinet, and a connecting hole (3) is provided on the mounting plate (1); the wiring terminal (2) is used for fixed connection with a copper bar, and a cylindrical connecting rod (4) is fixedly connected to the wiring terminal (2), and the connecting rod (4) is slidably connected in the connecting hole (3); a limiting disk (5) is provided on one end of the connecting rod (4) away from the wiring terminal (2), and a connecting spring (6) is sleeved on the connecting rod (4), and the connecting spring (6) is located on the mounting plate. (1) and the limiting plate (5); a positioning groove (7) is provided on the surface of the mounting plate (1) facing the wiring terminal (2); a positioning block (8) plugging and matching with the positioning groove (7) is provided on the wiring terminal (2); a conductive sheet (9) is provided on the bottom of the positioning groove (7) and the wiring terminal (2); and an auxiliary rod (10) and a driving component (11); the auxiliary rod (10) is slidably connected in the switch cabinet, and the auxiliary rod (10) is located on the side of the mounting plate (1) facing the limiting plate (5); the auxiliary rod ( The auxiliary rod (10) is provided with a push rod (12) abutting against the limit plate (5); the driving assembly (11) is located in the switch cabinet, and the driving assembly (11) is used to drive the auxiliary rod (10) to approach or move away from the mounting plate (1); the driving assembly (11) comprises a screw rod (111) and a sliding block (112), the screw rod (111) is rotatably connected in the switch cabinet, and the screw rod (111) is arranged along the sliding direction of the auxiliary rod (10), and one end of the screw rod (111) is located on the mounting plate (1) away from the auxiliary rod (10). 0); the sliding block (112) is fixedly connected to one end of the auxiliary block, and the sliding block (112) is threadedly matched with the screw rod (111); it also includes a positioning hole (16) opened on the copper busbar, the wiring terminal (2) is fixedly connected to a mounting strip (17), the mounting strip (17) is fixedly connected to a positioning rod (18), the positioning rod (18) is plugged and matched with the positioning hole (16); the mounting strip (17) is provided with a limiting component (19) for limiting the positioning rod (18) in the positioning hole (16).

2. According to claim 1, a copper busbar horizontally placed vertically internal conversion structure in a low-voltage switch cabinet is characterized in that: It also includes a guide rod (13), which is fixed in the switch cabinet and parallel to the screw rod (111); the other end of the auxiliary block is fixedly connected to a guide block (14), and the guide block (14) is slidably connected to the guide rod (13); and one end of the screw rod (111) is provided with a knob (15).

3. The internal conversion structure based on the horizontal and vertical placement of copper bars in the low-voltage switch cabinet according to claim 1 or 2 is characterized in that: The end of the push rod (12) facing the limiting plate (5) is in a semi-spherical shape.

4. According to claim 1, a copper busbar vertically placed internal conversion structure in a low-voltage switch cabinet is characterized in that: The limiting assembly (19) comprises a limiting groove (191) and a limiting block (192); the limiting groove (191) is opened on the side of the mounting strip (17); one end of the limiting block (192) is slidably connected to the limiting groove (191); and the other end of the limiting block (192) is abutted against a surface of the copper busbar away from the mounting strip (17).

5. According to claim 4, a copper busbar horizontally placed vertically internal conversion structure in a low-voltage switch cabinet is characterized in that: A limiting spring (20) is arranged in the limiting groove (191), one end of the limiting spring (20) is fixedly connected to the groove bottom of the limiting groove (191), and the other end of the limiting spring (20) is fixedly connected to the limiting block (192); the surface of the limiting block (192) away from the mounting strip (17) is an inclined surface.

6. The internal conversion structure based on the horizontal and vertical placement of copper bars in the low-voltage switch cabinet according to claim 4 or 5, characterized in that: A plurality of balls (21) are rollingly connected to the groove wall of the limiting groove (191).

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