Branching box and configuration method thereof

Abstract

The embodiment of the invention discloses a distribution box and a configuration method thereof, and the distribution box comprises a box body which is internally provided with an accommodation space; the wire inlet groove is arranged on the box body and is used for introducing a power supply side low-voltage line; the circuit breaker is arranged in the accommodating space, the input end of the circuit breaker is connected with the power supply side low-voltage line, and the output end of the circuit breaker is connected with three phase lines respectively; the three air switches are arranged in the accommodating space, and one air switch is correspondingly connected with one phase line; the three wiring assemblies are arranged in the accommodating space, and one wiring assembly is correspondingly connected with one phase line; and the wire outlet groove is arranged on the box body and is used for leading out a client side circuit formed by three phase wires. According to the embodiment of the invention, the access and lead-out processes of the power line are simplified, the safety and convenience are improved, and the difficulty and time of troubleshooting and maintenance are reduced. Through the protection effect of the circuit breaker and the air switch, the damage of circuit faults to equipment and personnel can be effectively prevented.

Description

Technical Field

[0001] The present application relates to the technical field of junction boxes, and in particular to a junction box and a configuration method thereof. Background Art

[0002] As the demand for electricity by residents continues to increase, the number of low-voltage power lines to households is also increasing. There may be more than 10 household lines on the head of a pole. At the same time, telecommunications lines, radio and television lines, etc. often illegally cross, intersect, entangle, and mix on 400V poles, resulting in a "spider web" line layout, which seriously affects the appearance of the city. In addition, due to the chaos of lines, when a single-household fault power outage, a power outage in a substation fault, or a substation neutral line is energized, fault troubleshooting is difficult, resulting in long power outages and long power restoration time. In addition, when operation and maintenance personnel carry out pole climbing operations, due to the messy household lines, multiple insulation wrapping and avoidance are required during the climbing process, which greatly increases the risk of electric shock and high falls for operators. Summary of the invention

[0003] In view of this, the present application provides a junction box and a configuration method thereof, which are used to solve the technical problems in the prior art of chaotic circuit layout, which affects the city appearance and makes it difficult to troubleshoot line faults.

[0004] In the first aspect, in order to achieve the above-mentioned purpose, the branch box proposed in this application includes:

[0005] A box body, wherein a receiving space is provided inside;

[0006] An inlet trough, provided on the box body, for introducing a low-voltage line on the power supply side;

[0007] A circuit breaker is arranged in the accommodating space, the input end of the circuit breaker is connected to the low-voltage line on the power supply side, and the output end of the circuit breaker is respectively connected to three phase lines;

[0008] Three air switches are arranged in the accommodating space, and one of the air switches is correspondingly connected to one of the phase lines;

[0009] Three wiring assemblies are arranged in the accommodating space, and one wiring assembly is correspondingly connected to one phase line;

[0010] The line outlet trough is arranged on the box body and is used for leading out the customer side line composed of the three phase lines.

[0011] Optionally, the line inlet trough is arranged on the side of the box body.

[0012] Optionally, the line inlet trough is arranged on the top of the box body.

[0013] Optionally, the cable outlet slot is arranged at the bottom of the box body.

[0014] Optionally, the cable outlet slot is arranged on the side of the box body.

[0015] Optionally, the box body further includes a box door, and a switch assembly is provided on the box door, and the switch assembly is used to open and close the box door.

[0016] Optionally, the junction box further includes a current and voltage display component, which includes a detection module, the detection module is connected to the output end of the circuit breaker, and the current and voltage display component is used to display the current and voltage information collected by the detection module.

[0017] Optionally, the branch box further includes a neutral line wiring assembly, the output end of the circuit breaker is also connected to a neutral line, and the neutral line wiring assembly is connected to the neutral line.

[0018] Optionally, the box body is made of stainless steel.

[0019] In a second aspect, to achieve the above-mentioned purpose, the present application further proposes a method for configuring a junction box, the method being applied to the junction box as described in the first aspect, the method comprising:

[0020] Fix the junction box with the fixing assembly;

[0021] Lead the low-voltage line on the power supply side into the input end of the circuit breaker in the junction box through the line inlet duct;

[0022] The A phase, B phase and C phase outputted from the output end of the circuit breaker are respectively introduced into the input ends of three air switches;

[0023] Introduce the phase lines output from the output terminals of the three air switches into the input terminals of the three wiring assemblies respectively;

[0024] Introduce the N line to the input end of the neutral wiring assembly;

[0025] The three phase lines led out from the output ends of the three wiring assemblies and the neutral line led out from the output end of the neutral line wiring assembly constitute a customer side line, and the customer side line is led out from the line outlet trough.

[0026] Implementing the embodiments of the present application will have the following beneficial effects:

[0027] The embodiment of the present application includes a box body, which is provided with a storage space inside, an inlet trough, which is arranged on the box body and is used to introduce a low-voltage line on the power supply side, a circuit breaker, which is arranged in the storage space, the input end of the circuit breaker is connected to the low-voltage line on the power supply side, and the output end of the circuit breaker is respectively connected to three phase lines, three air switches, which are arranged in the storage space, and one of the air switches is connected to one of the phase lines, three wiring assemblies, which are arranged in the storage space, and one of the wiring assemblies is connected to one of the phase lines, and an outlet trough is arranged on the box body and is used to lead out the customer side line composed of the three phase lines. The embodiment of the present application realizes the centralized management and control of power transmission by integrating components such as inlet troughs, circuit breakers, air switches, wiring assemblies and outlet troughs, effectively avoiding the risk of electric shock caused by the complexity of lines in various industries, reducing the risk of falling from height when operating and maintaining personnel climb poles, and effectively protecting the safety of life and property of the people. The embodiment of the present application not only simplifies the access and lead-out process of power lines, improves safety and convenience, but also helps to reduce the difficulty and time of troubleshooting and maintenance. At the same time, the protection of circuit breakers and air switches can effectively prevent circuit failures from damaging equipment and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] in:

[0030] Figure 1 This is one of the structural schematic diagrams of a packing box in an embodiment;

[0031] Figure 2 This is a second structural schematic diagram of a packing box in an embodiment;

[0032] Figure 3 This is a third structural schematic diagram of a packing box in an embodiment;

[0033] Figure 4 This is the fourth structural schematic diagram of the packing box in one embodiment.

[0034] Reference numerals:

[0035] 10. Box body; 11. Inlet duct; 12. Outlet duct; 13. Current and voltage display assembly; 14. Switch assembly; 20. Circuit breaker; 21. Air switch; 22. Wiring assembly; 23. Neutral wiring assembly. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0041] As the demand for electricity by residents continues to increase, the number of low-voltage power lines to households is also increasing. There may be more than 10 household lines on the head of a pole. At the same time, telecommunications lines, radio and television lines, etc. often illegally cross, intersect, entangle, and mix on 400V poles, resulting in a "spider web" line layout, which seriously affects the appearance of the city. In addition, due to the chaos of lines, when a single-household fault power outage, a power outage in a substation fault, or a substation neutral line is energized, fault troubleshooting is difficult, resulting in long power outages and long power restoration time. In addition, when operation and maintenance personnel carry out pole climbing operations, due to the messy household lines, multiple insulation wrapping and avoidance are required during the climbing process, which greatly increases the risk of electric shock and high falls for operators.

[0042] In view of this, the present application provides a branch box and a configuration method thereof, which realizes centralized management and control of power transmission by integrating components such as the incoming line trough 11, the circuit breaker 20, the air switch 21, the wiring assembly 22 and the outgoing line trough 12, effectively avoiding the risk of electric shock caused by the intricate lines of various industries, reducing the risk of falling from height when the operation and maintenance personnel climb the pole, and effectively protecting the safety of life and property of the people. The embodiment of the present application not only simplifies the access and lead-out process of the power line, improves safety and convenience, but also helps to reduce the difficulty and time of troubleshooting and maintenance. At the same time, through the protective function of the circuit breaker 20 and the air switch 21, it can also effectively prevent circuit faults from damaging equipment and personnel.

[0043] Please refer to Figures 1 to 4 The present application provides a branch box 1. Specifically, the branch box 1 may include a box body 1, an inlet trough 11, a circuit breaker 20, three air switches 21, three wiring assemblies 22 and an outlet trough 12.

[0044] The specific structure of the junction box 1 is described in detail below:

[0045] Among them, a accommodating space is provided inside the box 1. An inlet groove 11 is provided on the box 1, and is used to introduce a low-voltage line on the power supply side. The circuit breaker 20 is provided in the accommodating space, and the input end of the circuit breaker 20 is connected to the low-voltage line on the power supply side, and the output end of the circuit breaker 20 is respectively connected to three phase lines. Three air switches 21 are provided in the accommodating space, and one of the air switches 21 is connected to one of the phase lines. Three wiring assemblies 22 are provided in the accommodating space, and one of the wiring assemblies 22 is connected to one of the phase lines. The outlet groove 12 is provided on the box 1, and is used to lead out the customer-side line composed of the three phase lines.

[0046] More specifically, the box 1 is the main structure of the entire junction box, which is used to provide a closed and safe accommodation space to protect the internal electrical components from interference and damage from the external environment. The box 1 is the external frame of the overall structure, and all other components (such as the incoming line duct 11, the circuit breaker 20, the air switch 21, the wiring assembly 22 and the outgoing line duct 12) are installed or connected to the box 1.

[0047] The inlet trough 11 is used to introduce the low-voltage line on the power supply side, that is, to introduce the power of the external power grid into the junction box. The inlet trough 11 can be set on a side or top of the box body 1 to facilitate the connection with the external power grid. The inlet trough 11 can be connected to the low-voltage line on the power supply side through a wire or cable, and transmit the power to the circuit breaker 20 in the box body 1. By setting the inlet trough 11, the access process of the power supply line is simplified, and the convenience and safety of access are improved.

[0048] The circuit breaker 20 is a safety device in the electrical system, which is used to automatically cut off the circuit when a circuit fault such as overload or short circuit occurs, so as to protect the safety of the circuit and equipment. The circuit breaker 20 can be installed in the accommodation space of the box 1, usually located after the incoming line slot 11, as the first protective barrier for power transmission. The input end of the circuit breaker 20 can be connected to the low-voltage line on the power supply side introduced by the incoming line slot 11, and the output end is connected to three phase lines respectively. The circuit breaker 20 can quickly cut off the circuit when a circuit fault occurs, prevent the fault from expanding, and protect the safety of equipment and personnel.

[0049] The air switch 21 is a manually operated electrical switch used to control the on and off of the circuit. In the junction box, the air switch 21 is used to control the on and off of the three phase lines respectively. The air switch 21 is also installed in the accommodation space of the box body 1 and can be located after the circuit breaker 20. Each air switch 21 is connected to a corresponding phase line, and the on and off control of the corresponding phase line can be achieved by operating the air switch 21. The three air switches 21 provide independent control functions for the three phase lines, which is convenient for troubleshooting and maintenance.

[0050] The wiring assembly 22 is used to connect the phase line output by the air switch 21 with the customer side line, that is, to transmit power from the inside of the branch box to the external customer side. The wiring assembly 22 is also installed in the accommodation space of the box body 1, and can be located after the air switch 21. Each wiring assembly 22 is connected to a corresponding phase line, and transmits power to the external customer side line through the outlet slot 12.

[0051] The outlet duct 12 is used to lead out the customer-side line composed of three phase lines, that is, to transmit power from the inside of the junction box to the external customer-side equipment. The outlet duct 12 can be set on a side or bottom of the box body 1 to facilitate the connection with the external customer-side line. The outlet duct 12 is connected to the customer-side line output by the wiring assembly 22 through a wire or cable, which simplifies the process of leading out the customer-side line and improves the convenience and safety of leading out.

[0052] Implementing the embodiments of the present application will have the following beneficial effects:

[0053] The embodiment of the present application includes a box 1, which is provided with a storage space inside, an inlet trough 11, which is arranged on the box 1 and is used to introduce a low-voltage line on the power supply side, a circuit breaker 20, which is arranged in the storage space, the input end of the circuit breaker 20 is connected to the low-voltage line on the power supply side, and the output end of the circuit breaker 20 is respectively connected to three phase lines, three air switches 21, which are arranged in the storage space, and one of the air switches 21 is connected to one of the phase lines, three wiring assemblies 22, which are arranged in the storage space, and one of the wiring assemblies 22 is connected to one of the phase lines, and an outlet trough 12, which is arranged on the box 1 and is used to lead out a customer-side line composed of three phase lines. The embodiment of the present application realizes centralized management and control of power transmission by integrating components such as the inlet trough 11, the circuit breaker 20, the air switch 21, the wiring assembly 22 and the outlet trough 12, effectively avoiding the risk of electric shock caused by the complexity of the lines in various industries, reducing the risk of falling from a height when the operation and maintenance personnel climb the pole, and effectively protecting the lives and property of the people. The embodiment of the present application not only simplifies the access and extraction process of the power line, improves safety and convenience, but also helps to reduce the difficulty and time of fault detection and maintenance. At the same time, through the protection of the circuit breaker 20 and the air switch 21, it can also effectively prevent the circuit fault from damaging the equipment and personnel.

[0054] In some specific embodiments of the present application, the cable inlet trough 11 is arranged on the side of the box body 1.

[0055] Specifically, the line inlet trough 11 is used to introduce the low-voltage line on the power supply side. It can be set on the side of the box 1 to facilitate the connection with the external power grid, and it is also convenient for the maintenance and overhaul of the line. The line inlet trough 11 can be specifically located on a side of the box 1 close to the bottom or middle of the box 1 to facilitate the access and fixation of the line. The line inlet trough 11 is connected to the low-voltage line on the power supply side through a wire or cable, and transmits power to the circuit breaker 20 in the box 1. Setting the line inlet trough 11 on the side of the box 1 improves the convenience and safety of power access, and also facilitates the maintenance and overhaul of the line.

[0056] In some specific embodiments of the present application, the line inlet trough 11 is arranged on the top of the box body 1.

[0057] Specifically, the inlet trough 11 is the same as the one provided on the side, and is used to introduce the low-voltage line on the power supply side. In certain specific scenarios, such as when the ground space is limited or when it is necessary to avoid interference from the ground line, the inlet trough 11 is provided on the top of the box 1, which is more convenient for line access in certain specific scenarios. More specifically, the inlet trough 11 is located at the top of the box 1, close to the center or one side of the box 1.

[0058] In some specific embodiments of the present application, the cable outlet groove 12 is arranged at the bottom of the box body 1.

[0059] Specifically, the outlet trough 12 is used to lead out the customer side line composed of three phase lines. Setting it at the bottom of the box 1 can facilitate the downward extension and fixation of the line, improve the convenience and safety of power extraction, and also facilitate the maintenance and repair of the line.

[0060] In some specific embodiments of the present application, the cable outlet slot 12 is arranged on the side of the box body 1.

[0061] Specifically, the outlet trough 12 is the same as the outlet trough 12 arranged at the bottom, and is used to lead out the customer side line. In certain specific scenarios, the side arrangement is more convenient for line leading out. More specifically, the outlet trough 12 can be located on one side of the box body 1, usually close to the bottom or middle of the box body 1. In certain specific scenarios, such as when it is necessary to avoid interference from the ground line or when it is necessary to extend the line to the side, the outlet trough 12 arranged on the side will be more suitable.

[0062] In some specific embodiments of the present application, the box body 1 further includes a box door, and a switch assembly 14 is provided on the box door. The switch assembly 14 is used to open and close the box door.

[0063] Specifically, the box door can be used to close the opening of the box body 1 to protect the internal electrical components from interference and damage from the external environment. The switch assembly 14 can be used to open and close the box door to facilitate maintenance and overhaul of the electrical components inside the box body 1. The box door can be located on a side or front of the box body 1, and the switch assembly 14 can be installed on the box door or the box body 1 for easy operation. More specifically, the box door can be connected to the box body 1 through a connector such as a hinge or a hinge, and the switch assembly 14 is connected to the opening and closing mechanism of the box door by mechanical or electrical means. The box door provides protection and access to the electrical components inside the box body 1, which is convenient for maintenance and overhaul.

[0064] In some specific embodiments of the present application, the junction box also includes a current and voltage display component 13, which includes a detection module. The detection module is connected to the output end of the circuit breaker 20, and the current and voltage display component 13 is used to display the current and voltage information collected by the detection module.

[0065] Specifically, the current and voltage display component 13 can be used to monitor and display the current and voltage information inside the junction box in real time. It helps to promptly discover and handle abnormal situations during power transmission. The current and voltage display component 13 can be installed on the side or front of the box 1 to facilitate observation and recording of data. The detection module can be connected to the output end of the circuit breaker 20 to collect current and voltage information. The current and voltage display component 13 is connected to the detection module through an electrical connection to receive and display the collected data. The current and voltage display component 13 improves the monitoring and safety of power transmission, helps to promptly discover and handle abnormal situations, and prevents the expansion of faults.

[0066] In some specific embodiments of the present application, the junction box 1 further includes a controller, which is electrically connected to the detection module. The controller is used to: receive real-time current and voltage information detected by the detection module, compare the real-time current and voltage information with preset current and voltage information to obtain a comparison result, and generate corresponding control instructions according to the comparison result.

[0067] Specifically, the controller is responsible for receiving, processing and sending various control instructions. The controller can be connected to the detection module through an electrical interface. The detection module monitors the current and voltage information in the junction box in real time and transmits this information to the controller in the form of digital signals. After receiving the digital signal, the controller decodes and converts it to obtain the real-time current and voltage value. The controller can compare the real-time current and voltage values ​​with the preset current and voltage thresholds to determine whether the power parameters are within the normal range. The controller can then generate corresponding control instructions based on the comparison results to control the relevant components to perform corresponding operations.

[0068] In some more specific embodiments of the present application, the controller is electrically connected to the circuit breaker 20, and the controller is used to: when the comparison result is that the real-time current and voltage information is abnormal, the controller sends a circuit breaking instruction to the circuit breaker 20, so that the circuit breaker 20 performs a circuit breaking operation according to the circuit breaking instruction.

[0069] Specifically, the controller can be connected to the circuit breaker 20 through an electrical interface. When the controller detects abnormal power parameters (such as excessive current, excessive voltage or too low voltage, etc.), it will immediately generate a circuit breaking instruction and send the circuit breaking instruction to the circuit breaker 20 through the electrical interface. After receiving the instruction, the circuit breaker 20 will immediately perform the circuit breaking operation to cut off the fault circuit and prevent the fault from expanding.

[0070] In some other more specific embodiments of the present application, the junction box 1 also includes a communication module, the controller is electrically connected to the communication module, and the controller is also used for: when the comparison result is that the real-time current and voltage information is abnormal, the controller sends a notification instruction to the communication module, so that the communication module sends corresponding notification information to the user terminal according to the notification instruction.

[0071] Specifically, the communication module is responsible for sending the notification information generated by the controller to the user terminal. It uses advanced communication technologies, such as 4G, 5G or Wi-Fi, to ensure the real-time and reliability of information transmission. The controller can be connected to the communication module through an internal bus or serial communication. When the controller detects an abnormal power parameter and generates a circuit breaker instruction, it will also generate a notification instruction and send the notification instruction to the communication module. After receiving the instruction, the communication module can encode the notification information and send it to the user terminal through communication technologies such as 4G, 5G or Wi-Fi. After the user terminal receives the notification information, it will immediately display the fault alarm information to remind the user to deal with it in time.

[0072] The implementation method of the present application introduces key components such as a controller, a detection module and a communication module, and constructs a precise electrical connection relationship, so as to monitor the power parameters in the distribution box in real time, and promptly cut off the faulty circuit and notify the user when an abnormality is detected, thereby improving the safety and reliability of the distribution box.

[0073] In some specific embodiments of the present application, the branch box further includes a neutral line connection assembly 23, the output end of the circuit breaker 20 is also connected to a neutral line, and the neutral line connection assembly 23 is connected to the neutral line.

[0074] Specifically, the neutral wiring assembly 23 can be used to connect the output end of the circuit breaker 20 with the neutral wire to ensure the integrity and safety of power transmission. Specifically, the neutral wiring assembly 23 can be installed in the accommodation space of the box 1, close to the output end of the circuit breaker 20, and connected to the output end of the circuit breaker 20 and the neutral wire through a wire or cable. The neutral wiring assembly 23 ensures the integrity and safety of power transmission and prevents power failures caused by disconnection of the neutral wire or poor contact.

[0075] In some specific embodiments of the present application, the box body 1 is made of stainless steel.

[0076] Specifically, the stainless steel material has excellent corrosion resistance and strength, can resist erosion and damage from the external environment, and protect the electrical components in the box 1. More specifically, the stainless steel material is the main component of the box 1, covering the entire outer shell of the box 1. The stainless steel material is connected to other parts of the box 1 by welding, bolting, etc. to form a complete box 1 structure. The use of stainless steel material improves the durability and corrosion resistance of the box 1, extends the service life of the junction box, and also improves the overall safety and reliability.

[0077] The present application also provides a method for configuring a junction box. The method is applied to a junction box in any of the above embodiments, and the method includes:

[0078] Fix the junction box with the fixing assembly;

[0079] Lead the low-voltage line on the power supply side to the input end of the circuit breaker 20 in the junction box through the line inlet slot 11;

[0080] The A phase, B phase, and C phase outputted from the output end of the circuit breaker 20 are respectively introduced into the input ends of three air switches 21;

[0081] The phase lines output from the output terminals of the three air switches 21 are respectively introduced into the input terminals of the three wiring assemblies 22;

[0082] Introduce the N line to the input end of the neutral line wiring assembly 23;

[0083] The three phase lines led out from the output ends of the three wiring assemblies 22 and the neutral line led out from the output end of the neutral line wiring assembly 23 constitute a customer side line, and the customer side line is led out from the line outlet slot 12 .

[0084] In the implementation mode of the present application, first, the appropriate installation position can be determined according to the site conditions and the size of the junction box. This position should be convenient for the access and lead-out of the lines, and the safety and stability of the junction box should also be considered. Use prepared fixing components (such as bolts, nuts, brackets, etc.) to fix the junction box in a predetermined position. Specifically, the steps may include drilling holes in the wall, installing brackets, hanging the junction box on the brackets, and fixing the junction box to the brackets or the ground with bolts and nuts. The junction box can also be directly mounted on the wall with expansion screws. After the installation is completed, check whether the junction box is stable and firm to ensure that it will not move or tilt during subsequent use.

[0085] Then, prepare the low-voltage line on the power supply side and ensure that the specifications and length of the line meet the design requirements. Find the incoming line slot 11 on the junction box, and open or unfasten the closing device (such as a cover, bolts, etc.) of the incoming line slot 11, and introduce the low-voltage line on the power supply side from the opening of the incoming line slot 11, ensuring that the line is neatly and safely placed in the incoming line slot 11. Connect the low-voltage line on the power supply side to the input end of the circuit breaker 20 inside or near the incoming line slot 11. Specifically, it may include steps such as stripping the wires, wiring, and tightening the terminal blocks. After completing the line connection, the opening of the incoming line slot 11 can be closed to ensure that the line will not be disturbed or damaged by the external environment.

[0086] Next, determine the output positions of phase A, phase B, and phase C according to the output terminal identification of the circuit breaker 20. Prepare the air switches 21, and make sure that the three air switches 21 are ready and that their input terminals match the phases of the output terminals of the circuit breaker 20. Connect the lines, and use appropriate wires or cables to connect the output terminals of the circuit breaker 20 to the input terminals of the air switches 21. Each air switch 21 corresponds to a phase, and ensure that the connection is correct. Check the connection. After completing the connection, check whether each connection point is firm and reliable to ensure that the circuit can be switched on and off normally.

[0087] Then, prepare the wiring assembly 22, make sure that the three wiring assemblies 22 are ready, and their input ends match the phase of the output end of the air switch 21. Connect the lines, use appropriate wires or cables to connect the output end of the air switch 21 to the input end of the wiring assembly 22. Each wiring assembly 22 corresponds to a phase line output by the air switch 21. Arrange the lines, make sure that the lines are neatly and orderly placed inside or near the wiring assembly 22, and avoid crossing or entanglement of the lines. Check the connection. After completing the connection, check whether each connection point is firm and reliable to ensure that the circuit can transmit current normally.

[0088] Next, prepare the N line (neutral line), ensure that the specifications and length of the line meet the design requirements, find the position of the neutral line wiring assembly 23 inside the junction box, introduce the N line to the input end of the neutral line wiring assembly 23, and connect it firmly. Specifically, it may include stripping the wire, wiring, tightening the terminal, etc. After completing the connection, check whether the connection point is firm and reliable to ensure that the neutral line can transmit current normally.

[0089] Then, find the outlet trough 12 on the junction box, and open or unfasten the closing device (such as a cover, bolts, etc.) of the outlet trough 12, and lead out the three phase wires led out of the output ends of the three wiring assemblies 22, and the neutral wire led out of the output end of the neutral wiring assembly 23 from the opening of the outlet trough 12. Make sure that the lines are neatly and safely placed in or near the outlet trough 12. Outside the outlet trough 12, connect the led-out lines to the customer-side equipment. Specifically, it may include steps such as wire stripping, wiring, and installing terminal blocks. After completing the line connection, close the opening of the outlet trough 12 to ensure that the line will not be interfered with or damaged by the external environment. Finally, check and test the configuration of the entire junction box to ensure that the circuit can work properly and meet safety requirements.

[0090] Implementing the embodiments of the present application will have the following beneficial effects:

[0091] The embodiment of the present application includes a box 1, which is provided with a storage space inside, an inlet trough 11, which is arranged on the box 1 and is used to introduce a low-voltage line on the power supply side, a circuit breaker 20, which is arranged in the storage space, the input end of the circuit breaker 20 is connected to the low-voltage line on the power supply side, and the output end of the circuit breaker 20 is respectively connected to three phase lines, three air switches 21, which are arranged in the storage space, and one of the air switches 21 is connected to one of the phase lines, three wiring assemblies 22, which are arranged in the storage space, and one of the wiring assemblies 22 is connected to one of the phase lines, and an outlet trough 12, which is arranged on the box 1 and is used to lead out a customer-side line composed of three phase lines. The embodiment of the present application realizes centralized management and control of power transmission by integrating components such as the inlet trough 11, the circuit breaker 20, the air switch 21, the wiring assembly 22 and the outlet trough 12, effectively avoiding the risk of electric shock caused by the complexity of the lines in various industries, reducing the risk of falling from a height when the operation and maintenance personnel climb the pole, and effectively protecting the lives and property of the people. The embodiment of the present application not only simplifies the access and extraction process of the power line, improves safety and convenience, but also helps to reduce the difficulty and time of fault detection and maintenance. At the same time, through the protection of the circuit breaker 20 and the air switch 21, it can also effectively prevent the circuit fault from damaging the equipment and personnel.

[0092] The above description is only an optional embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A branch box, characterized in that: include: A box body, wherein a receiving space is provided inside; An inlet trough, provided on the box body, for introducing a low-voltage line on the power supply side; A circuit breaker is arranged in the accommodating space, the input end of the circuit breaker is connected to the low-voltage line on the power supply side, and the output end of the circuit breaker is respectively connected to three phase lines; Three air switches are arranged in the accommodating space, and one of the air switches is correspondingly connected to one of the phase lines; Three wiring assemblies are arranged in the accommodating space, and one wiring assembly is correspondingly connected to one phase line; The line outlet trough is arranged on the box body and is used for leading out the customer side line composed of the three phase lines.

2. The junction box according to claim 1, characterized in that: The wire inlet slot is arranged on the side of the box body.

3. The junction box according to claim 1, characterized in that: The wire inlet trough is arranged on the top of the box body.

4. The junction box according to claim 1, characterized in that: The wire outlet slot is arranged at the bottom of the box body.

5. The junction box according to claim 1, characterized in that: The wire outlet slot is arranged on the side of the box body.

6. The junction box according to claim 1, characterized in that: The box body also includes a box door, and a switch component is arranged on the box door, and the switch component is used to open and close the box door.

7. The junction box according to claim 6, characterized in that: The junction box further comprises a current and voltage display component, which comprises a detection module connected to the output end of the circuit breaker, and is used for displaying the current and voltage information collected by the detection module.

8. The junction box according to claim 1, characterized in that: The branch box also includes a neutral line connection assembly, the output end of the circuit breaker is also connected to a neutral line, and the neutral line connection assembly is connected to the neutral line.

9. The junction box according to claim 1, characterized in that: The material of the box body is stainless steel.

10. A method for configuring a junction box, characterized in that: The method is applied to a junction box according to any one of claims 1 to 9, and the method comprises: Fix the junction box with the fixing assembly; Lead the low-voltage line on the power supply side into the input end of the circuit breaker in the junction box through the line inlet duct; The A phase, B phase and C phase outputted from the output end of the circuit breaker are respectively introduced into the input ends of three air switches; Introduce the phase lines output from the output terminals of the three air switches into the input terminals of the three wiring assemblies respectively; Introduce the N line to the input end of the neutral wiring assembly; The three phase lines led out from the output ends of the three wiring assemblies and the neutral line led out from the output end of the neutral line wiring assembly constitute a customer side line, and the customer side line is led out from the line outlet trough.

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