Cable branch box with fuse type disconnecting switch
By designing fuse isolation switches and controllers in the cable branch box, automated failover and remote recovery are achieved, solving the hidden dangers of line short circuits in the cable branch box in harsh environments and the long recovery time, and improving fault location Accuracy and power recovery speed.
Patent Information
- Application Number
- CN202420749081.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The cable branch box has a potential for short circuit in harsh environments. The failure recovery of traditional fuse switches requires manual replacement. The recovery time is long and the work burden is large, so the circuit cannot be controlled accurately.
A cable branch box with a fuse type isolator is designed, including a cable box, a fuse type isolator and a controller. The fuse component can be automatically switched through a rotary frame and a motor, and combined with a relay module and a signal transmission module to realize Remote fault recovery and accurate fault location.
It improves the adaptability and stability of the cable branch box in harsh environments, simplifies the line recovery process, improves the accuracy of fault detection and power recovery speed, and reduces the operating burden of staff.
Smart Images
Figure CN222147137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cable branch boxes, in particular to a cable branch box with a fuse type isolating switch. Background Art
[0002] The cable branch box is a device in the power system, used to distribute and maintain cable circuits. It is usually installed at the intersection of distribution lines or cable lines. It can divide a cable into multiple cables so as to distribute electricity to multiple usage points. The cable branch box generally has the characteristics of easy installation, reliable operation, cable joint protection, and simple maintenance. Common materials include steel plates, aluminum alloys, etc.
[0003] The cable branch box can improve the stability of the power system, but it still has some problems: 1) There are uncontrollable factors in the internal switches of the cable branch box in harsh environments, and there is a risk of line short circuit; 2) When using traditional fuse switches, when the line fails and recovers, it is necessary to go to the cable branch box manually to replace the fuse and restart the circuit, which takes a long time to restore power and increases the workload; 3) It is impossible to accurately control the line; Therefore, in view of the above situation, it is urgent to develop a cable branch box with a fuse-type isolating switch to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content
[0004] The utility model aims to provide a cable branch box with a fuse-type isolating switch to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A cable branch box with a fuse type isolating switch comprises a cable box, a fuse type isolating switch and a controller. The controller is embedded and installed on the inner wall of the cable box, and a plurality of fuse type isolating switches are horizontally installed on the inner wall of the cable box.
[0007] As a further solution of the utility model: the fuse-type disconnector includes a disconnector, a fuse assembly and contacts. The fuse assembly is vertically installed on one side of the disconnector, and the two contacts are longitudinally distributed at both ends of the fuse assembly and fixedly connected to the disconnector. The two ends of the contact are respectively in contact with the two ends of the same fuse.
[0008] As a further solution of the utility model: the fuse assembly includes a shell, a gear box, a motor, a rotating frame and a fuse. The shell is vertically arranged on one side of the isolating switch and fixedly connected to the isolating switch. The gear box is horizontally installed in the middle position of the bottom of the shell. The motor is vertically installed at the bottom edge of the gear box. The rotating frame is embedded in the interior of the shell and is rotatably connected to the shell. The fuse is embedded in the slot on the side of the rotating frame.
[0009] As a further solution of the utility model: the bottom end of the rotating frame is drivingly connected to the gear box, the gear box is drivingly connected to the motor, and the type of the motor is a DC stepping motor.
[0010] As a further solution of the utility model: the controller includes a processor, a relay module, a temperature module, a humidity module, a signal transmitting module and a signal receiving module, and the relay module is connected in series at one end of the contact.
[0011] As a further solution of the utility model: the relay module is specifically a time-delay relay, the temperature module is specifically a temperature sensor, the humidity module is specifically a humidity sensor, and the signal transmitting module and the signal receiving module are both based on the Internet.
[0012] Beneficial effects: This cable branch box with a fuse-type isolating switch uses a fuse-type isolating switch as a means of protecting the line fulcrum by installing the fuse-type isolating switch inside. The fuse can adapt to harsh working environments. Compared with automated intelligent equipment, it has higher adaptability and stability. At the same time, its fuse assembly can install four groups of fuses at the same time through the installed rotating frame, and can be rotated and switched with the motor and gear box, which is convenient for staff to remotely restore the line and improve work efficiency. The relay module is connected in series to the fuse-type isolating switch. When the fuse is disconnected, the relay module is triggered to cooperate with the processor to send a signal to the power system terminal through the signal transmission module, so that the terminal can promptly grasp which specific section of the line has a fault, improve the accuracy of fault detection, and thereby increase the speed of power recovery. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a front structural schematic diagram of the utility model.
[0014] Figure 2 The utility model is a schematic diagram of the structure of a fuse type isolating switch.
[0015] Figure 3 It is a schematic diagram of the shell structure of the utility model.
[0016] Figure 4 It is a schematic diagram of the rotary frame structure of the utility model.
[0017] Figure 5 It is a module diagram of the utility model.
[0018] In the figure: 1. cable box; 2. fuse-type disconnect switch; 21. disconnect switch; 22. fuse assembly; 221. housing; 222. gear box; 223. motor; 224. rotating frame; 225. fuse; 23. contact; 3. controller; 31. processor; 32. relay module; 33. temperature module; 34. humidity module; 35. signal transmitting module; 36. signal receiving module. DETAILED DESCRIPTION
[0019] Example
[0020] See also Figures 1 to 4 In an embodiment of the utility model, a cable branch box with a fuse type isolating switch includes a cable box 1, a fuse type isolating switch 2 and a controller 3. The controller 3 is embedded in the inner wall of the cable box 1, and a plurality of fuse type isolating switches 2 are horizontally installed on the inner wall of the cable box 1.
[0021] As a further solution of the utility model: the fuse-type disconnector 2 includes a disconnector 21, a fuse assembly 22 and a contact 23. The fuse assembly 22 is vertically installed on one side of the disconnector 21. The two contacts 23 are longitudinally distributed at the two ends of the fuse assembly 22 and are fixedly connected to the disconnector 21. The two ends of the contact 23 are respectively in contact with the two ends of the same fuse 225.
[0022] As a further solution of the utility model: the fuse assembly 22 includes a shell 221, a gear box 222, a motor 223, a rotating frame 224 and a fuse 225. The shell 221 is vertically arranged on one side of the isolating switch 21 and is fixedly connected to the isolating switch 21. The gear box 222 is horizontally installed in the middle position of the bottom of the shell 221. The motor 223 is vertically installed at the bottom edge of the gear box 222. The rotating frame 224 is embedded in the interior of the shell 221 and is rotatably connected to the shell 221. The fuse 225 is embedded in the card slot on the side of the rotating frame 224.
[0023] As a further solution of the utility model: the bottom end of the rotating frame 224 is drivingly connected to the gear box 222, the gear box 222 is drivingly connected to the motor 223, and the type of the motor 223 is a DC stepping motor 223.
[0024] As a further solution of the utility model: the controller 3 includes a processor 31 , a relay module 32 , a temperature module 33 , a humidity module 34 , a signal transmitting module 35 and a signal receiving module 36 , and the relay module 32 is connected in series to one end of the contact 23 .
[0025] As a further solution of the utility model: the relay module 32 is specifically a time-delay relay, the temperature module 33 is specifically a temperature sensor, the humidity module 34 is specifically a humidity sensor, and the signal transmitting module 35 and the signal receiving module 36 are both based on the Internet.
[0026] The working principle of the utility model is: when the cable branch box with a fuse-type isolating switch is in use, the power branch is controlled by the internal fuse-type isolating switch 2. When a line fault occurs and the current exceeds the rated value, the fuse 225 will be blown. At this time, the fault circuit disconnects the power supply and triggers the relay module 32. The processor 31 cooperates with the signal transmission module 35 to send a circuit breaker signal to the power system terminal. After the staff completes the maintenance, the motor 223 can be remotely started through the processor 31, and the gear box 222 can be used to drive the rotating frame 224 to rotate, thereby connecting the intact fuse 225 to the circuit.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cable branch box with a fuse-type disconnector, characterized in that: It comprises a cable box (1), a fuse-type isolating switch (2) and a controller (3); the controller (3) is embedded and installed on the inner wall of the cable box (1); and a plurality of the fuse-type isolating switches (2) are horizontally installed on the inner wall of the cable box (1).
2. The cable branch box with a fuse-type disconnector according to claim 1, characterized in that: The fuse-type disconnector (2) comprises a disconnector (21), a fuse assembly (22) and a contact (23); the fuse assembly (22) is vertically mounted on one side of the disconnector (21); the two contacts (23) are longitudinally distributed at two ends of the fuse assembly (22) and are fixedly connected to the disconnector (21).
3. The cable branch box with a fuse-type disconnector according to claim 2, characterized in that: The fuse assembly (22) comprises a housing (221), a gear box (222), a motor (223), a rotating frame (224) and a fuse (225); the housing (221) is vertically arranged on one side of the isolating switch (21) and is fixedly connected to the isolating switch (21); the gear box (222) is horizontally installed at the middle position of the bottom of the housing (221); the motor (223) is vertically installed at the bottom edge of the gear box (222); the rotating frame (224) is embedded in the interior of the housing (221) and is rotatably connected to the housing (221); and the fuse (225) is embedded in a slot on the side of the rotating frame (224).
4. The cable branch box with a fuse-type disconnector according to claim 3 is characterized in that: The bottom end of the rotating frame (224) is drivingly connected to a gear box (222), and the gear box (222) is drivingly connected to a motor (223), and the type of the motor (223) is a DC stepping motor (223).
5. The cable branch box with a fuse-type disconnector according to claim 1, characterized in that: The controller (3) comprises a processor (31), a relay module (32), a temperature module (33), a humidity module (34), a signal transmitting module (35) and a signal receiving module (36); the relay module (32) is connected in series to one end of the contact (23).
6. The cable branch box with a fuse-type disconnector according to claim 5, characterized in that: The relay module (32) is specifically a time-delay relay, the temperature module (33) is specifically a temperature sensor, the humidity module (34) is specifically a humidity sensor, and the signal transmitting module (35) and the signal receiving module (36) are both based on the Internet.