Novel mobile junction box
The new mobile junction box, with its plug-in connection and wireless control, solves the problem of cumbersome temporary power supply operations in existing technologies, enabling convenient connection between generators and electrical loads and flexible power control, thereby improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SOUTHEAST POWER TECH DEV CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
The existing mobile distribution boxes are cumbersome to operate during temporary power supply switching. Staff need to fix and remove the power lines one by one, and can only operate the opening and closing switches manually, which causes inconvenience to the staff.
A novel mobile junction box was designed, which uses a plug-in connection to connect the generator and the electrical load, is equipped with a wireless remote control circuit and a switching mechanism, and enables wireless control of the switching power switch. It is also easy to move by combining wheels.
The plug-in connection and wireless control simplify the process of connecting the generator to the electrical load, improve work efficiency, reduce manual operation steps, and provide convenience and flexibility.
Smart Images

Figure CN224177871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of junction box equipment technology, and in particular to a novel mobile junction box. Background Technology
[0002] A junction box is a line distribution device with protective features, mainly used in communication and power systems to realize the access, distribution, and protection of multi-user lines. Depending on the application scenario, junction boxes can be divided into fiber optic junction boxes, cable junction boxes, etc., and have core functions such as signal distribution, line management, and security protection.
[0003] With the development of industrial technology, the function of junction boxes has also improved. For example, the authorized patent in my country with patent number "02216037.X" and patent name "Movable Junction Box" describes that "this utility model hangs the junction box on a bracket, with one end of the branch cable fixed in the junction box of the busbar trunking and the other end fixed in the junction box body. In this way, the junction box can move within a limited range, and the junction box has good sealing performance and is waterproof." As can be seen from the above, although it achieves the aforementioned technical effects, like other junction boxes in this field, due to structural and functional limitations, it still has the following shortcomings that can be further improved. Firstly, when used for temporary power switching, such as when power lines are temporarily shut down for maintenance and a generator is used to supply power to the relevant area's load, it is necessary to secure each generator's output power line to the incoming terminal connected to the power input of the switchboard using clamps and bolts. Similarly, each input power line connected to one or more loads (e.g., supplying power to only a few critical devices) must be secured to the outgoing terminal connected to the power output of the switchboard using clamps and bolts. Before restoring power, workers must remove all power lines from the incoming and outgoing terminals. This process is relatively cumbersome and inconvenient for workers. Secondly, workers can only manually access the junction box to operate its associated switchboard, which also presents inconvenience. Utility Model Content
[0004] To overcome the shortcomings of existing mobile junction boxes due to structural limitations, as described in the background art, this utility model provides a new type of mobile junction box mainly used for temporary power supply from generators to power lines. With the joint action of related mechanisms, it can be easily moved to relevant areas. It connects the generator's output power and the electrical load input power through a plug-in method, and the staff can also manually or wirelessly control the opening and closing of the power switch as needed, thus bringing convenience to the staff.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A new type of mobile distribution box includes a box body, wheels, a circuit breaker switch, a wireless remote control circuit, a wireless receiving circuit, a power socket, a power plug, and a battery; it also has a circuit breaker mechanism; there are multiple sets of the circuit breaker switch, power socket, power plug, and circuit breaker mechanism, one set of power plugs is electrically connected to the power output terminal of a generator, and the other sets of power plugs are electrically connected to the power input terminals of multiple electrical loads. The battery, multiple sets of circuit breaker switches, multiple sets of power sockets, and the wireless receiving circuit are installed inside the box; the power input terminals of the multiple sets of circuit breaker switches are electrically connected to the terminals of one set of power sockets, and the power output terminals of the multiple sets of circuit breaker switches are electrically connected to the terminals of the other sets of power sockets. Electrical connections are provided; the operating handles and housings of the multiple sets of opening and closing power switches are fixedly equipped with rear magnets. Each opening and closing mechanism includes a front magnet, a fixed plate, a linkage seat, and an electric push rod. The front end of the fixed plate is fixedly installed on the rear end of the cylinder of the electric push rod, and the front end of the front magnet is fixedly installed on the rear end of the fixed plate. One side of the linkage seat and the lower end of the movable column of the electric push rod are fixedly installed together. The multiple opening and closing mechanisms are respectively attracted to the front ends of the multiple rear magnets by the front magnets. The two poles of the battery and the power input terminal of the wireless receiving circuit are electrically connected. The multiple power output terminals of the wireless receiving circuit and the power input terminals of the electric push rods of the multiple opening and closing mechanisms are respectively electrically connected. The wheel frames of the multiple omnidirectional wheels are respectively fixedly installed on the outer perimeter of the lower end of the housing.
[0007] Furthermore, the rear end of the front magnet and the front end of the rear magnet have opposite polarities.
[0008] Furthermore, each of the additional power plugs is equipped with multiple insulating protective cylinders, and the additional power plugs are inserted into the protective cylinders respectively.
[0009] Furthermore, the handles of the multiple sets of opening and closing power switches are respectively located on the other side of the linkage seat of the multiple sets of opening and closing mechanisms, and the distance between the upper and lower ends of the other side of the linkage seat is greater than the width of the upper and lower ends of the handle.
[0010] Furthermore, the wireless receiving circuit includes a wireless receiving circuit module and relays connected via circuit board wiring. The positive control power input terminals of the six relays are connected to the positive power input terminals of the wireless receiving circuit module. The negative power input terminals of the wireless receiving circuit module are connected to the negative power input terminals and negative control power input terminals of the relays. The six power output terminals of the wireless receiving circuit module are respectively connected to the positive power input terminals of the six relays.
[0011] Compared with existing technologies, the advantages of this utility model are as follows: This new model is mainly used for temporary power supply of generators to power lines. Because the housing has wheels, it can be easily moved to relevant areas. Before use, the power plugs of the electrical loads are inserted into the sockets of multiple sets of power outlets, and the generator's power plug is inserted into one of the power outlets. In this way, the generator's output power and the electrical load's input power can be connected via a plug-in method. Furthermore, operators can manually or wirelessly control the opening and closing of the power switch as needed, either through the opening and closing mechanism or other non-contact methods, thus providing convenience and improving work efficiency. In summary, this new model has good application prospects. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 , 3 This is a partial structural schematic diagram of the present invention.
[0015] Figure 4 This is the circuit diagram of this utility model. Detailed Implementation
[0016] Figure 1 , 2As shown in Figures 3 and 4, the new type of mobile distribution box includes a box body 1, omnidirectional wheels 2, a circuit breaker 3, a wireless remote control circuit W1, a wireless receiving circuit 4, a power socket 5, a power plug 6, a storage battery G1, and a charging socket CZ; it also has a circuit breaker mechanism 7; there are three sets of circuit breaker switches 3 and circuit breaker mechanisms 7, and four sets of power sockets 5 and power plugs 6. One set of four power plugs 6 are connected to the four power output terminals (three-phase four-wire) of the generator via wires, and the other three sets of four power plugs 6 are connected to the power input terminals of three electrical loads via wires. The wireless receiving circuit 4, the storage battery G1, the charging socket CZ, the three sets of circuit breaker switches 3, and the four sets of power sockets 5 are installed inside the box body 1, and the sockets of the power sockets 5, the handles 31 of the circuit breaker switches, and the sockets of the charging sockets CZ are located outside 20 openings at the front of the box body; each set of power sockets has four plugs, and each of the four power input terminals of the three sets of circuit breaker switches is connected to one of the four plugs 6. The terminals of the four power sockets 5 are connected by wires. The four power output terminals of each set of opening and closing power switches 3 and the terminals of the four power sockets 5 in the other three sets of power sockets are connected by wires. A rear permanent magnet 8 is glued to the front of the right side of the housing of each of the three sets of opening and closing power switches. Each opening and closing mechanism includes a front permanent magnet 71, a fixing plate 72, a "]"-shaped linkage seat 73, an electric push rod M1 (M2, M3), and a fixing plate 71. 2. The front end is fixedly installed on the rear end of the cylinder of the electric push rod M1 (M2, M3). The front end of the front magnet 71 is glued to the rear outer end of the fixing plate 72. The right end of the linkage seat 73 and the lower end of the movable column of the electric push rod M1 (M2, M3) are fixedly installed together. The three sets of opening and closing mechanisms are respectively attracted to the front end of the three rear magnets 8 by the front magnet 71. The wireless remote control mechanism W1 can be carried by the staff. The wheel frames of the four universal wheels 2 are respectively fixedly installed on the outer periphery of the lower end of the box 1.
[0017] Figure 1 , 2As shown in Figures 3 and 4, the rear end of the front magnet 71 and the front end of the rear magnet 8 have opposite polarities. The other three power plugs are each equipped with four plastic insulating protective sleeves 9. The inner center of each protective sleeve 9 has a slot with an inner diameter larger than the power plug. The slot is open at the top and closed at the bottom. A fixing sleeve with an inner diameter slightly smaller than the outer diameter of the power plug is glued inside the slot. The other three power plugs are inserted into the sleeves of each of the four plastic protective sleeves 9. (This way, when the electrical load is normally powered through the power line, the protective insulating sleeves prevent leakage through the power plug; when a generator is needed to power the load, the power switch connecting the load and the power line is disconnected, the protective sleeve 9 is unplugged, and the power plug is inserted into the corresponding power socket to power the load.) The handles 31 of the three sets of opening and closing power switches are located on the left side of the linkage seat of the multiple opening and closing mechanisms, and the distance between the upper and lower ends of the linkage seat 73 is greater than the width between the upper and lower ends of the handle 31. The wireless receiving circuit includes a wireless receiving circuit module W2 and relays J1, J2, J3, J4, J5, and J6 connected via circuit board wiring. The positive control power input terminals of the six relays J1, J2, J3, J4, J5, and J6 are connected to pin 1 of the positive power input terminal of the wireless receiving circuit module W2. The negative power input terminal pin 2 of the wireless receiving circuit module W2 is connected to the negative power input terminals and negative control power input terminals of the six relays J1, J2, J3, J4, J5, and J6. The six power output terminals pins 3, 4, 5, 6, 7, and 8 of the wireless receiving circuit module W2 are respectively connected to the positive power input terminals of the six relays J1, J2, J3, J4, J5, and J6. The two terminals of battery G1 and the two ends of charging socket CZ (when battery G1 is depleted, insert the plug of an external 12V power charger into charging socket CZ to charge battery G1), and the power input terminals 1 and 2 of wireless receiver circuit module W2 are connected by wires. The six power output terminals of the wireless receiver circuit, the two normally open contacts of each of the six relays J1, J2, J3, J4, J5, and J6, and the positive and negative and negative positive power input terminals of the electric push rods M1, M2, and M3 of the three sets of opening and closing mechanisms are connected by wires.
[0018] Figure 1 , 2As shown in Figures 3 and 4, this new type is mainly used for generators to temporarily supply power to power lines. Since the housing 1 has wheels 2, it can be easily moved to relevant areas. Before use, the four power plugs 6 of one or three power loads are inserted into the four sockets of one or three sets of power sockets 5, respectively. The four power plugs 6 of the generator are then inserted into the four sockets of one set of power sockets 5. In this way, the generator's output power and the power input of the power loads can be connected via a plug-in method. Specifically, after the operator opens one or three sets of switching power switches 3 (handle 31 opens upwards), the generator's output power supplies one or three power loads through one set of power plugs, one set of power sockets, and the closed contacts of one or three sets of switching power switches 3. After the operator closes one or three sets of switching power switches 3 (handle closes downwards), the generator's output power no longer supplies one or three power loads through one set of power plugs, one set of power sockets, and one or three sets of switching power switches 3. The power output from battery G1 enters the power input terminal of wireless receiver circuit module W2. When an operator presses the first button D1, the third button D3, or the fifth button D5 of the portable wireless remote control circuit W1, the wireless remote control circuit W1 will transmit the first, third, or fifth wireless closed signal. After receiving the corresponding signal, the wireless receiver circuit module W2 will output a high level from pin 1, pin 3, or pin 5, which will enter the power input terminal of relay J1, J3, or J5. Relay J1, J3, or J5 will then be energized and engage their control power input. When the normally open contact is closed, the positive and negative power input terminals of the electric push rod M1 of the first set of opening and closing mechanisms, or the electric push rod M2 of the second set of opening and closing mechanisms, or the electric push rod M3 of the third set of opening and closing mechanisms, will be energized. The electric push rod of the first, second, or third set of opening and closing mechanisms will drive the handle of the first, second, or third set of opening and closing power switches 3 to move upward via the linkage seat 73. Consequently, the internal contacts of the first, second, or third set of opening and closing power switches 3 will close, and the corresponding first, second, or third circuit power load will be energized and put into operation.When the operator presses the first button D1, the third button D3, or the fifth button D5 of the portable wireless remote control circuit W1 again, the wireless remote control circuit W1 will emit the first, third, or fifth wireless open-circuit signal. After the wireless receiving circuit module W2 receives the corresponding signal, its pins 1, 3, or 5 will stop outputting a high level to the power input terminal of relays J1, J3, or J5. Relays J1, J3, or J5 will be de-energized and will no longer engage, opening the control power input terminal and the normally open contact terminal. The positive and negative power input terminals of the electric push rod M1 of the first set of opening and closing mechanisms, or the electric push rod M2 of the second set of opening and closing mechanisms, or the electric push rod M3 of the third set of opening and closing mechanisms will be de-energized. The electric push rods of the first, second, or third set of opening and closing mechanisms will no longer drive the handle of the first, second, or third set of opening and closing power switches 3 via the linkage seat 73. The first, second, or third set of opening and closing power switches 3 will remain in place to supply power to the first, second, or third set of electrical loads.
[0019] Figure 1 , 2As shown in Figures 3 and 4, when an operator presses the second button D2 or the fourth button D4 and the sixth button D6 of the portable wireless remote control circuit W1, the wireless remote control circuit W1 will emit a second, fourth, or sixth wireless closed signal. After receiving the corresponding signal, the wireless receiving circuit module W2 will output a high level from pins 2, 4, or 6, which will then enter the power input terminal of relays J2, J4, or J6. Relays J2, J4, or J6 will be energized and their control power input terminal and normally open contact terminal will close. Thus, The electric push rod M1 of the first set of opening and closing mechanisms, or the electric push rod M2 of the second set of opening and closing mechanisms, or the electric push rod M3 of the third set of opening and closing mechanisms, will be energized at both positive and negative power input terminals. The electric push rods of the first, second, or third set of opening and closing mechanisms will drive the handles of the first, second, or third set of opening and closing power switches 3 to move downwards via the linkage seat 73. Consequently, the internal contacts of the first, second, or third set of opening and closing power switches 3 will open, and the corresponding first, second, or third circuit power loads will lose power and stop working. When the operator presses the second button D2, the fourth button D4, or the sixth button D6 of the portable wireless remote control circuit W1 again, the wireless remote control circuit W1 will emit a second, fourth, or sixth wireless open-circuit signal. After the wireless receiving circuit module W2 receives the corresponding signal, its pins 2, 4, and 6 will stop outputting a high level to the power input terminal of relays J2, J4, and J5. Relays J2, J4, and J6 will be de-energized and will no longer engage, opening the control power input terminal and the normally open contact terminal. The positive and negative power input terminals of the electric push rod M1 of the first set of opening and closing mechanisms, the electric push rod M2 of the second set of opening and closing mechanisms, and the electric push rod M3 of the third set of opening and closing mechanisms will be de-energized. The electric push rods of the first, second, or third set of opening and closing mechanisms will no longer drive the handle of the first, second, or third set of opening and closing power switches 3 via the linkage seat 73. The first, second, or third set of opening and closing power switches 3 will remain in place, not supplying power to the first, second, or third circuit load. Through the above, the operator of this new type of circuit breaker can manually or wirelessly control the opening and closing of the power switch as needed, making its application more flexible. Figure 4 In this application, battery G1 is a 12V / 10Ah lithium battery; electric actuators M1, M2, and M3 are small reciprocating electric telescopic rods with a power of 10W; and the wireless remote control mechanism W1 and wireless receiving circuit module W2 are six-channel wireless transceiver module components of model QM1006 (control distance 50 meters) (with the same function and working principle as existing automotive wireless transceiver components). All of the above electronic components are existing mature technologies, and their working principles will not be elaborated upon in this application.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0021] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A novel mobile distribution box, comprising a box body, wheels, a switching power switch, a wireless remote control circuit, a wireless receiving circuit, a power socket, a power plug, and a storage battery; characterized in that, It also features a circuit breaker mechanism; multiple sets of circuit breaker power switches, power sockets, power plugs, and circuit breaker mechanisms are included. One set of power plugs is electrically connected to the power output terminal of the generator, and the other sets of power plugs are electrically connected to the power input terminals of multiple electrical loads. The battery, multiple sets of circuit breaker power switches, multiple sets of power sockets, and wireless receiving circuit are installed inside the enclosure. The power input terminals of the multiple sets of circuit breaker power switches are electrically connected to the terminals of one set of power sockets, and the power output terminals of the multiple sets of circuit breaker power switches are electrically connected to the terminals of the other sets of power sockets. The operating handles of the multiple sets of circuit breaker power switches and the enclosure are also included. Each circuit breaker mechanism includes a front magnet, a fixed plate, a linkage seat, and an electric push rod, with the front end of the fixed plate fixedly installed on the rear end of the electric push rod's cylinder. The front end of the front magnet is also fixedly installed on the rear end of the fixed plate. One side of the linkage seat and the lower end of the movable column of the electric push rod are fixedly installed together. Multiple circuit breaker mechanisms are attracted to the front ends of multiple rear magnets via the front magnets. The two poles of the battery are electrically connected to the power input terminal of the wireless receiving circuit. The multiple power output terminals of the wireless receiving circuit are electrically connected to the power input terminals of the electric push rods of multiple circuit breaker mechanisms. The wheel frames of multiple omnidirectional wheels are fixedly installed around the lower perimeter of the housing.
2. The novel mobile junction box according to claim 1, characterized in that, The rear end of the front magnet and the front end of the rear magnet have opposite polarities.
3. The novel mobile junction box according to claim 1, characterized in that, In addition, each of the multiple power plugs comes with a number of insulating protective sleeves, and each of the multiple power plugs is inserted into the protective sleeve.
4. The novel mobile junction box according to claim 1, characterized in that, The handles of the multiple sets of opening and closing power switches are located on the other side of the linkage seat of the multiple sets of opening and closing mechanisms, and the distance between the upper and lower ends of the other side of the linkage seat is greater than the width of the upper and lower ends of the handle.
5. The novel mobile junction box according to claim 1, characterized in that, The wireless receiving circuit includes a wireless receiving circuit module and relays connected via circuit board wiring. The positive control power input terminals of the six relays are connected to the positive power input terminals of the wireless receiving circuit module. The negative power input terminals of the wireless receiving circuit module are connected to the negative power input terminals and negative control power input terminals of the relays. The six power output terminals of the wireless receiving circuit module are respectively connected to the positive power input terminals of the six relays.
Citation Information
Patent Citations
Moveable junction box
CN2558130Y