A power distribution cabinet for scheduling multi-path load balancing
Patent Information
- Application Number
- CN202521784422.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-08-21
AI Technical Summary
[0013]In summary, this utility model has at least one of the following beneficial effects: 1. By setting a sliding conductive component on the first fastening frame, the conductive slide rail fixed by the insulating support base cooperates with the horizontally sliding conductive slider, so that the conductive copper connector at the front end of the conductive slider can be flexibly adjusted along the slide rail clearance groove. The second conductive copper strip on the slider is always in contact with the first conductive copper strip on the slide rail, so as to realize continuous power transmission during the sliding process. When installing or replacing the second control switch, there is no need to repeatedly bend the cable. It is only necessary to slide the slider to align and then connect it through a straight wire, which simplifies the wiring steps and shortens the operation time.
Smart Images
Figure CN224759804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment technology, and in particular to a power distribution cabinet for balancing multiple loads. Background Technology
[0002] In power distribution systems, the installation and replacement of control switches are common operations for maintaining and upgrading power distribution equipment. Traditionally, such operations require connecting to the conductive components inside the power distribution equipment via cables. The specific process includes several steps such as stripping the cable insulation layer, crimping the terminals, and fastening the corresponding phase sequence to the switch terminals.
[0003] Because the wiring positions and spacing of different switch models vary, the cables need to be cut and bent according to the actual size to fit the fixed installation structure. The phase sequence verification relies on manual marking, which is cumbersome and requires a high level of skill from the personnel. Furthermore, repeated wiring operations will further reduce efficiency when the switches are frequently replaced or maintained.
[0004] Existing power distribution systems of this type often require stripping and crimping each cable section before installing or replacing control switches, followed by tightening each cable to its corresponding terminal. This is particularly problematic in emergency situations where switch replacement is necessary. The inflexible connection structure between cables and conductive components, coupled with the different wiring spacing and positions required for different switch specifications, necessitates readjusting cable lengths and connections, further extending operation time and failing to meet the demands for rapid power restoration in emergencies. Therefore, we propose a multi-channel load balancing distribution cabinet to address these issues. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Therefore, the purpose of this utility model is to provide a power distribution cabinet for balancing multiple loads, which can solve the problem that existing power distribution devices often require stripping and crimping each cable segment by segment, and then tightening it one by one to the corresponding terminals when installing or replacing control switches. Especially in scenarios where control switches need to be replaced, the situation is often urgent, and the fixed connection structure between cables and conductive components lacks flexibility. Different specifications of switches correspond to different wiring spacing and positions, and the cable length and connection method need to be readjusted when replacing them, which prolongs the operation time and makes it difficult to meet the needs of quickly restoring power supply in emergency situations.
[0007] To solve the above-mentioned technical problems, this utility model provides a power distribution cabinet for balancing multiple loads, which adopts the following technical solution: it includes a power distribution box, and several fixed rails are arranged radially and evenly at the left and right ends inside the power distribution box. A first fastening frame is set on the fixed rails. A second control switch is set in the middle of the first fastening frame. Two air switches are arranged radially above the first fastening frame. Current is conducted and connected between the air switches and the second control switches through a busbar. A sliding conductive component is installed on the first fastening frame directly below the second control switch by bolts.
[0008] Optionally, the sliding conductive component includes an insulating support base, a conductive slide rail, and a conductive slider. Insulating support bases are fastened to the left and right sides of the first fastening frame. Four conductive slide rails are arranged at a lateral interval between the two insulating support bases. Each conductive slide rail has a clearance groove in the middle, and a first conductive copper strip is embedded in the rear and top of each conductive slide rail. The body of the conductive slide rail is made of insulating material.
[0009] Optionally, the conductive slider slides horizontally along the length of the conductive slide rail, and the front end of the conductive slider is provided with a conductive copper connector. The conductive copper connector is embedded in the clearance groove of the corresponding conductive slide rail and slides synchronously with the conductive slider.
[0010] Optionally, a second conductive copper strip is embedded in the conductive slider at the position of the first conductive copper strip embedded in the conductive slide rail. The second conductive copper strip is electrically connected to the conductive copper connector at the front end of the conductive slider, and the second conductive copper strip is always in contact with the first conductive copper strip on the conductive slide rail.
[0011] Optionally, a wire outlet terminal is provided directly below the first fastening frame, and a fixed conductive block is provided on each of the several conductive slide rails. The fixed conductive block is electrically connected to the first conductive copper strip of the corresponding conductive slide rail, and the fixed conductive block and the wire outlet terminal directly below are connected by a conductive connector to achieve power transmission.
[0012] Optionally, a second fastening frame is provided in front of the first fastening frame, and an insulating partition is installed on the second fastening frame. The insulating partition has an operation clearance groove adapted to the air switch and the second control switch. A door panel is axially rotatably connected to the front of the distribution box, and a first control switch is fastened to the front of the door panel.
[0013] In summary, this utility model has at least one of the following beneficial effects: 1. By setting a sliding conductive component on the first fastening frame, the conductive slide rail fixed by the insulating support base cooperates with the horizontally sliding conductive slider, so that the conductive copper connector at the front end of the conductive slider can be flexibly adjusted along the slide rail clearance groove. The second conductive copper strip on the slider is always in contact with the first conductive copper strip on the slide rail, so as to realize continuous power transmission during the sliding process. When installing or replacing the second control switch, there is no need to repeatedly bend the cable. It is only necessary to slide the slider to align and then connect it through a straight wire, which simplifies the wiring steps and shortens the operation time.
[0014] 2. By setting an insulating partition with an operating clearance groove in front of the first fastening frame, the operating parts of the air switch and the second control switch are exposed, while the high-voltage conductive components such as the rear busbar are isolated. A door panel with the first control switch is set in front of the distribution box, forming double protection. The insulating design of the insulating support base and the conductive slide rail body, together with the standardized connection of the fixed conductive block and the outgoing terminal, effectively avoids the risk of phase-to-phase short circuit and accidental electric shock, and ensures the safety of operation and circuit operation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of a partial side structure of the present invention; Figure 4 This is a schematic diagram of the relevant components of the partial and sliding conductive assembly of this utility model.
[0017] Explanation of reference numerals in the attached figures: 1. Distribution box body; 12. Fixed rail; 13. First fastening frame; 14. Second fastening frame; 15. Insulating partition; 16. Door panel; 17. First control switch; 2a. Second control switch; 2b. Air switch; 3. Sliding conductive component; 31. Insulating support base; 32. Conductive slide rail; 321. Clearance groove; 322. First conductive copper strip; 33. Conductive slider; 331. Second conductive copper strip; 34. Conductive copper connector; 35. Fixed conductive block; 4. Outgoing terminal. Detailed Implementation
[0018] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0019] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.
[0020] Example 1, refer to Figure 1-4 In this embodiment, to address the problem that existing power distribution devices often require stripping and crimping each cable segment before installing or replacing control switches, and then tightening them one by one to the corresponding terminals, especially in emergency situations where the fixed connection structure between cables and conductive components lacks flexibility, and different switch specifications correspond to different wiring spacing and positions, requiring readjustment of cable length and connection methods during replacement, thus prolonging operation time and failing to meet the need for rapid power restoration in emergency situations, this utility model discloses a power distribution cabinet for scheduling multi-path load balancing. The distribution box 1 includes a power distribution box body 1. Inside the power distribution box body 1, several radially evenly arranged fixed rails 12 are provided at both the left and right ends. A first fastening frame 13 is mounted on each fixed rail 12. A second control switch 2a is located in the middle of the first fastening frame 13. Two radially arranged air switches 2b are located directly above the first fastening frame 13. Current is conducted and connected between the air switches 2b and the second control switches 2a via a busbar. A sliding conductive component 3 is bolted to the first fastening frame 13 directly below the second control switch 2a. The power distribution box body 1 has several radially evenly arranged fixed rails 12 at both ends. Several fixed rails 12 set at both ends are evenly arranged radially to provide a stable mounting carrier for the first fastening frame 13. At the same time, the installation position of the first fastening frame 13 can be adjusted according to actual needs. The first fastening frame 13 serves as the core load-bearing structure. The second control switch 2a installed in the middle can realize the on / off control of specific circuits. The two air switches 2b arranged radially above it are used for overload, short circuit and other protection functions of the line. The air switches 2b and the second control switch 2a are connected through the busbar to form a current path to ensure that the power is conducted in an orderly manner according to the preset path.
[0021] The sliding conductive assembly 3 includes an insulating support base 31, a conductive slide rail 32, and a conductive slider 33. Insulating support bases 31 are fastened to the left and right sides of the first fastening frame 13. Four conductive slide rails 32 are arranged laterally between the two insulating support bases 31. Each conductive slide rail 32 has a clearance groove 321 in its middle, and a first conductive copper strip 322 is embedded directly behind and above each conductive slide rail 32. The body of the conductive slide rail 32 is made of insulating material. The sliding conductive assembly 3 is fixed by the insulating support bases 31 on the left and right sides of the first fastening frame 13. The insulating support bases 31 ensure both insulation and conductivity. The reliable connection between the components and the frame is ensured, and the leakage risk between the conductive parts and the frame is avoided through its own insulation characteristics. The four conductive slide rails 32 arranged horizontally between the two insulating support seats 31 correspond to different phase sequences in the circuit (such as phases A, B, C and N line) to achieve independent phase conduction. The clearance groove 321 in the middle of each conductive slide rail 32 provides space for the sliding of the subsequent conductive slider 33. The first conductive copper strip 322 embedded in the back and top of the slide rail serves as the core conductive medium and is responsible for the transmission of current. The slide rail body is made of insulating material, which can isolate the conductive copper strips of different phase sequences.
[0022] The conductive slider 33 slides horizontally along the length of the conductive slide rail 32. The front end of the conductive slider 33 is provided with a conductive copper connector 34. The conductive copper connector 34 is embedded in the clearance groove 321 of the corresponding conductive slide rail 32 and slides synchronously with the conductive slider 33. The conductive slider 33 and the conductive slide rail 32 adopt a horizontal sliding engagement method along the length direction, so that the slider can adjust its position according to the connection requirements. The second conductive copper strip 331, which is embedded on the slider at the position of the first conductive copper strip 322 on the slide rail, forms an electrical connection with the front conductive copper connector 34 and always maintains contact with the first conductive copper strip 322 on the slide rail during the sliding process, thereby realizing the continuous transmission of current during the movement of the slider.
[0023] The conductive slider 33 is fitted with a second conductive copper strip 331 at the position of the first conductive copper strip 322 embedded in the conductive slide rail 32. The second conductive copper strip 331 is electrically connected to the conductive copper connector 34 at the front end of the conductive slider 33, and the second conductive copper strip 331 is always in contact with the first conductive copper strip 322 on the conductive slide rail 32. The fixed conductive block 35 set on each conductive slide rail 32 is electrically connected to the first conductive copper strip 322 embedded in the slide rail, forming an intermediate node for current transmission, so that the current on the slide rail can be conducted to the output terminal 4 through the fixed conductive block 35 and the conductive connector, and finally realize the power exchange between the internal circuit of the device and the external line.
[0024] A terminal 4 is located directly below the first fastening frame 13. Several conductive slide rails 32 are equipped with fixed conductive blocks 35. The fixed conductive blocks 35 are electrically connected to the first conductive copper strips 322 of the corresponding conductive slide rails 32. The fixed conductive blocks 35 and the terminal 4 directly below them are connected by conductive connectors to achieve power transmission. The second fastening frame 14 in front of the first fastening frame 13 provides an installation base for the insulating partition 15. The operation clearance groove on the insulating partition 15 matches the position of the air switch 2b and the second control switch 2a. While ensuring that the operator can operate the switch normally, it isolates the high-voltage conductive components such as the busbar behind the switch from the external operating area.
[0025] A second fastening frame 14 is provided in front of the first fastening frame 13. An insulating partition 15 is installed on the second fastening frame 14. An operating clearance groove adapted to the air switch 2b and the second control switch 2a is opened on the insulating partition 15. A door panel 16 is axially rotatably connected to the front of the distribution box 1. A first control switch 17 is fastened to the front of the door panel 16. The door panel 16 in front of the distribution box 1 is opened and closed by axial rotation. When closed, it can provide comprehensive protection for the electrical components inside the box, preventing foreign objects from entering or misoperation by non-professionals. The first control switch 17 installed on the front of the door panel 16 serves as the main control component of the device, which can realize the overall start and stop control of the entire distribution cabinet, providing operators with a convenient global control interface.
[0026] The specific working principle is as follows: After the device is powered on, the external power supply is connected through the output terminal 4. The current is transmitted to the fixed conductive block 35 through the conductive connector, and then conducted by the fixed conductive block 35 to the first conductive copper strip 322 embedded in the conductive slide rail 32, forming an initial current path. At this time, the conductive slider 33 keeps in contact with the first conductive copper strip 322 of the conductive slide rail 32 through the second conductive copper strip 331 on it, so that the current can be transmitted from the first conductive copper strip 322 to the second conductive copper strip 331, and output through the conductive copper connector 34 at the front end of the conductive slider 33. When the second control switch 2a needs to be replaced, the conductive slider 33 is pushed to slide horizontally along the length of the conductive slide rail 32. The conductive copper connector 34 at the front end of the conductive slider 33 moves synchronously in the clearance groove 321 until it slides to the position corresponding to the terminal of the second control switch 2a. Since the second conductive copper strip 331 is always in contact with the first conductive copper strip 322 during the sliding process, the current can be continuously transmitted through the conductive slider 33, realizing uninterrupted power conduction during the connection process. Subsequently, the conductive copper connector 34 is connected to the corresponding terminal of the second control switch 2a through a direct connection line, and the current flows from the conductive slider 33 into the second control switch 2a through the connection line. The second control switch 2a is connected to the two air switches 2b directly above it via a busbar. Current is conducted from the second control switch 2a to the air switches 2b. The air switches 2b provide overload and short-circuit protection for the circuit according to the circuit load. When it is necessary to operate the air switches 2b or the second control switch 2a, the operator can operate through the operating clearance slot on the insulating partition 15. The insulating partition 15 isolates the high-voltage components such as the busbar behind it, avoiding the risk of electric shock.
[0027] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A switchgear for dispatching multi-path load balancing, comprising a switchgear cabinet (1), characterized in that: The distribution box body (1) is internally provided with a plurality of fixed rails (12) uniformly arranged along the radial direction at the left and right ends, the fixed rails (12) are provided with a first fastening frame (13), the middle of the first fastening frame (13) is provided with a second control switch (2a), two air switches (2b) are arranged above the first fastening frame (13) along the radial direction, the air switches (2b) and the second control switch (2a) are connected through a busbar row to realize current conduction and connection, and a sliding conductive assembly (3) is installed on the first fastening frame (13) through bolts below the second control switch (2a).
2. The switchboard of claim 1, wherein: The sliding conductive assembly (3) comprises an insulating support seat (31), a conductive sliding rail (32) and a conductive sliding block (33), the insulating support seats (31) are fastened and installed on the left and right sides of the first fastening frame (13), four conductive sliding rails (32) are arranged between the two insulating support seats (31) in the transverse direction, the middle of each conductive sliding rail (32) is provided with a recess (321), a first conductive copper strip (322) is embedded in front of and above each conductive sliding rail (32), and the body of the conductive sliding rail (32) is made of an insulating material.
3. A switchboard for dispatching load balancing according to claim 2, characterized in that: The conductive sliding block (33) is horizontally slidably connected with the conductive sliding rail (32) in the length direction, the front end of the conductive sliding block (33) is provided with a conductive copper joint (34), and the conductive copper joint (34) is embedded in the recess (321) of the corresponding conductive sliding rail (32) and slides synchronously with the conductive sliding block (33).
4. The switchboard of claim 3, wherein: The conductive sliding block (33) is embedded with a second conductive copper strip (331) at the position of the first conductive copper strip (322) embedded in the conductive sliding rail (32), the second conductive copper strip (331) is electrically connected with the conductive copper joint (34) at the front end of the conductive sliding block (33), and the second conductive copper strip (331) is always in contact with the first conductive copper strip (322) on the conductive sliding rail (32).
5. A switchboard for dispatching load balancing according to claim 4, characterized in that: The first fastening frame (13) is provided with a terminal (4) below, the conductive sliding rails (32) are all provided with fixed conductive blocks (35), the fixed conductive blocks (35) are electrically connected with the first conductive copper strips (322) of the corresponding conductive sliding rails (32), and the fixed conductive blocks (35) and the terminal (4) below are connected through a conductive connecting piece to realize power transmission.
6. The switchgear for load sharing of multiple circuits of claim 1, wherein: The first fastening frame (13) is provided with a second fastening frame (14) in front, the second fastening frame (14) is provided with an insulating partition plate (15), the insulating partition plate (15) is provided with operation accommodation grooves matched with the air switches (2b) and the second control switch (2a), the front of the distribution box body (1) is rotationally connected with a door plate (16), and the front of the door plate (16) is fastened with a first control switch (17).