Circuit protection automatic short circuit equipment for power distribution system

Abstract

The utility model relates to the technical field of circuit protection, and discloses a circuit protection automatic short circuit device for a power distribution system, which comprises a rear shell, the upper part of the rear side of the rear shell is fixedly connected with a wire inlet pipe, one end of the wire inlet pipe is fixedly connected with a detector, and the lower side of the detector is fixedly connected with a fixed wire pipe. A wire outlet pipe is fixedly connected to the lower portion of the rear side of the rear shell, fixed wire pipes are fixedly connected to one end of the wire outlet pipe, limiting columns are fixedly connected to the left sides and the right sides of the two fixed wire pipes, springs are fixedly connected to the interiors of the limiting columns, and pressure columns are fixedly connected to the other ends of the springs. According to the utility model, the process of replacing the fuse wire is simple and rapid, the maintenance personnel can restore the normal operation of the circuit in a short time, and the fuse wire can be replaced only by manual operation without complicated tools and professional knowledge, so that the fuse wire replacing device is particularly convenient for non-professional personnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit protection technical field especially relates to a circuit protection automatic short circuit equipment for distribution system. BACKGROUND

[0002] The development course of electricity is an important component of human science and technology progress, involves multiple stages from the discovery of electricity to the construction and modernization of electric power equipment, in the early twentieth century, countries began to establish electric power transmission and distribution network, gradually formed the national electric power development, provides stable power supply, in the middle of the twentieth century, the electric power industry gradually realized commercialization, formed the electric power market, promoted competition and efficiency improvement.

[0003] Since the 21st century, with the increasing demand for renewable energy worldwide, solar and wind clean energy have been widely used, promoting the transformation of power production and consumption, the distribution system is an indispensable part of the power network, ensuring efficient and safe delivery of electric energy to end users, the design and operation of the distribution system are crucial to the reliability, safety and economy of power supply.

[0004] Through retrieval, China patent publication number: CN210073751U discloses a circuit protection automatic short circuit equipment for distribution system, including protection box shell, the inside fixed mounting of protection box shell is equipped with protection box support plate, the both sides fixed connection of protection box shell inner chamber is equipped with power on board, the inner chamber fixed sleeve of power on board is equipped with power on mounting plate. The circuit protection automatic short circuit equipment for distribution system, through the cooperation of power on mounting plate and fixed plate, when the power on mounting plate is used for circuit protection, the fuse or some short circuit protection equipment can be installed, and the fixed plate is used for fixing the fuse or some short circuit protection equipment, so that the installation operation is simplified, and the line connection plate is used for connecting the line, when the line connection plate is taken down, the power supply is turned off, the safety of the equipment is improved, and the problem that the line cannot be cut off in time when the fuse is fused is avoided, but the fuse is replaced more troublesome after being fused, and the smoke after being fused cannot be discharged in time, which is easy to cause fire danger. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a circuit protection automatic short circuit equipment for distribution system, which aims at improving the problem that the fuse is replaced more troublesome after being fused in the prior art, and the smoke after being fused cannot be discharged in time, which is easy to cause fire danger.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: A kind of circuit protection automatic short-circuit equipment for distribution system, including rear shell, the rear side upper portion of rear shell is fixedly connected with incoming line pipe, one end of the incoming line pipe is fixedly connected with detector, the lower side of the detector is fixedly connected with fixed line pipe, the rear side lower portion of rear shell is fixedly connected with outgoing line pipe, one end of the outgoing line pipe is fixedly connected with fixed line pipe, the left and right sides of two the fixed line pipe are fixedly connected with limit post, the inside of limit post is fixedly connected with spring, the other end of spring is fixedly connected with pressure column, the outer wall of pressure column and the inner wall of limit post are slidably connected, the left and right sides of fixed line pipe are fixedly connected with fixed column, the other end of fixed column is rotatably connected with connecting piece, the lower side of connecting piece is fixedly connected with one end of pressure column, the upper side of connecting piece is fixedly connected with clamping piece, the outer wall of clamping piece is fixedly connected with height insulating piece, the adjacent side of two the fixed line pipe is fixedly connected with household line, the outer wall of household line is clamped and connected with fuse, the right side of rear shell is provided with smoke exhaust mechanism, and the smoke exhaust mechanism is used for smoke exhaust fire prevention.

[0007] Through the above technical scheme: incoming line pipe guides the entering of current, and is fixedly connected with detector, to ensure the stable monitoring of current, the rear shell provides physical support for the device, to ensure the safety of internal components, the outgoing line pipe provides a channel for the output of current, the limit post not only provides structural stability for the device, but also is fixedly connected with spring inside, which limits the contraction direction of the spring, the outer wall of pressure column and the inner wall of limit post are slidably connected, to ensure that the compression direction of spring is consistent, guaranteeing the accuracy of action, the height insulating piece provides additional safety for the device, the fuse can quickly cut off the circuit when the current is abnormal, to prevent the occurrence of fire and other dangerous situations, and the smoke exhaust mechanism can effectively exhaust the smoke generated by the disconnection of fuse.

[0008] As a further description of the above technical scheme:

[0009] The smoke exhaust mechanism includes fireproof partition, the outer wall of the fireproof partition is fixedly connected with the inner wall of the rear shell, the upper side of the smoke exhaust mechanism is fixedly connected with a micro smoke extractor, the rear side of the rear shell is fixedly connected with a micro motor, the output end of the micro motor is fixedly connected with a bevel gear, the upper and lower ends of the right side of the rear shell are fixedly connected with limit rings, a rotating shaft is rotatably connected between the two limit rings, the upper side of the rotating shaft is fixedly connected with a bevel gear, the outer walls of the two bevel gears are meshingly connected, and the outer wall of the rotating shaft is uniformly fixedly connected with smoke exhaust fans.

[0010] Through the technical scheme, the fireproof partition ensures stability and safety of the structure, the micro smoke extractor effectively extracts smoke, the core of the micro motor smoke exhaust mechanism is connected with the bevel gear to ensure efficient transmission of power, the outer walls of the two bevel gears are precisely meshed to ensure stable rotation of the rotating shaft, the rotating shaft can rotate freely to ensure smooth operation of the smoke exhaust fan, and the smoke exhaust fan can efficiently exhaust smoke out of the shell under the driving of the micro motor.

[0011] Further description of the technical scheme is as follows:

[0012] The left side of the rear shell is provided with a smoke exhaust louver, and the front side of the rear shell is threadedly connected with a front cover.

[0013] Through the technical scheme, the smoke exhaust louver can conveniently exhaust smoke generated after the fuse is blown out of the shell, and the front cover can effectively protect safe operation of internal parts.

[0014] Further description of the technical scheme is as follows:

[0015] The front side of the front cover is fixedly connected with a micro controller, and the micro controller is electrically connected with the micro motor.

[0016] Through the technical scheme, electrical connection between the micro controller and the micro motor ensures accurate and error-free signal transmission.

[0017] Further description of the technical scheme is as follows:

[0018] The left and right sides of the front cover are provided with grooves, and the front side of the front cover is fixedly connected with a power switch.

[0019] Through the technical scheme, the grooves can conveniently hold the front cover for a user, and the power switch can cut off power supply according to requirements to ensure safety in maintenance.

[0020] Further description of the technical scheme is as follows:

[0021] The upper and lower sides of the front cover are provided with long grooves, and the long grooves are threadedly connected with screws inside.

[0022] Through the technical scheme, the screws threadedly connected inside the long grooves can firmly connect the front cover with the rear shell.

[0023] Further description of the technical scheme is as follows:

[0024] The upper and lower sides of the rear shell are provided with fixing grooves, and the rear side of the fixing grooves is threadedly connected with fixing bolts.

[0025] Through the technical scheme, the fixing bolts in the fixing grooves can effectively fix the rear shell on a wall surface and a structure.

[0026] As a further description of the above technical solutions:

[0027] The right side of the front cover is threadedly connected with an inspection cover, and easy-to-grasp grooves are formed in the upper and lower sides of the inspection cover.

[0028] Through the above technical solutions: the inspection cover can facilitate the inspection of internal parts, and the easy-to-grasp grooves facilitate the maintenance personnel to hold the inspection cover.

[0029] The utility model has the advantages of the following beneficial effects:

[0030] 1. In the utility model, the connecting piece is rotated through the fixing column to separate the clamping piece between the household line and the fuse, the fuse to be replaced is removed, and repeated operation is performed to make the fuse closely connected with the household line, so that the process of replacing the fuse is simple and fast, the maintenance personnel can restore the normal operation of the circuit in a short time, the replacement of the fuse does not require complex tools and professional knowledge, and can be completed through manual operation, which is particularly convenient for non-professionals.

[0031] 2. In the utility model, the micro smoke extractor and the micro motor work simultaneously, smoke is timely sucked to the right side of the fireproof partition, the two bevel gears rotate to drive the rotating shaft in the limiting ring to rotate the smoke exhaust fan, smoke is discharged out of the rear shell through the smoke exhaust louver, the smoke exhaust function can rapidly cut off the power supply and discharge harmful smoke when a fault occurs, the probability of fire occurrence is reduced, effective smoke exhaust can reduce the temperature and smoke concentration, reduces damage to equipment, and thus electrical equipment is protected from the influence of fire. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A front cover front side perspective view of a circuit protection automatic short circuit device for a power distribution system is provided for the utility model;

[0033] Figure 2 A front cover left side perspective view of a circuit protection automatic short circuit device for a power distribution system is provided for the utility model;

[0034] Figure 3 A front cover structure split view of a circuit protection automatic short circuit device for a power distribution system is provided for the utility model;

[0035] Figure 4 A smoke exhaust mechanism local structure display view of a circuit protection automatic short circuit device for a power distribution system is provided for the utility model;

[0036] Figure 5 A fuse local structure schematic view of a circuit protection automatic short circuit device for a power distribution system is provided for the utility model.

[0037] LEGEND:

[0038] 1, rear shell; 2, smoke exhaust mechanism; 201, fireproof partition; 202, micro smoke extractor; 203, micro motor; 204, bevel gear; 205, limiting ring; 206, rotating shaft; 207, smoke exhaust fan; 3, incoming line pipe; 4, detector; 5, fixed line pipe; 6, limiting column; 7, fixed column; 8, connecting sheet; 9, pressure column; 10, spring; 11, clamping sheet; 12, height insulation sheet; 13, incoming line; 14, fuse; 15, outgoing line pipe; 16, smoke exhaust shutter; 17, front cover; 18, handle groove; 19, microcontroller; 20, power switch; 21, fixing groove; 22, fixing bolt; 23, long groove; 24, screw; 25, maintenance cover; 26, easy-to-grasp groove. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] Please refer to the drawings of the embodiments of the present application Figure 1 , the drawings of the embodiments of the present application Figure 3 and the drawings of the embodiments of the present application Figure 4 , the present application provides an embodiment of a circuit protection automatic short circuit device for power distribution system, which comprises a rear shell 1, an incoming line pipe 3 is fixedly connected to the upper rear side of the rear shell 1, a detector 4 is fixedly connected to one end of the incoming line pipe 3, a fixed line pipe 5 is fixedly connected to the lower side of the detector 4, an outgoing line pipe 15 is fixedly connected to the lower rear side of the rear shell 1, the fixed line pipe 5 is fixedly connected to one end of the outgoing line pipe 15, a limiting column 6 is fixedly connected to the left and right sides of the two fixed line pipes 5, a spring 10 is fixedly connected to the inside of the limiting column 6, a pressure column 9 is fixedly connected to the other end of the spring 10, the outer wall of the pressure column 9 is in sliding connection with the inner wall of the limiting column 6, a fixed column 7 is fixedly connected to the left and right sides of the fixed line pipe 5, a connecting sheet 8 is rotatably connected to the other end of the fixed column 7, one end of the pressure column 9 is fixedly connected to the lower side of the connecting sheet 8, a clamping sheet 11 is fixedly connected to the upper side of the connecting sheet 8, a height insulation sheet 12 is fixedly connected to the outer wall of the clamping sheet 11, an incoming line 13 is fixedly connected to the adjacent side of the two fixed line pipes 5, a fuse 14 is clamped and connected to the outer wall of the incoming line 13, a smoke exhaust mechanism 2 is arranged on the right side of the rear shell 1, and the smoke exhaust mechanism 2 is used for smoke exhaust and fire prevention;

[0041] Specifically, the rear shell 1 provides physical support for the device, ensures the safety of the internal components, the inlet pipe 3 guides the entry of the current, and is fixedly connected with the detector 4, ensuring stable monitoring of the current, the outlet pipe 15 provides a channel for the output of the current, the limiting column 6 not only provides structural stability for the device, but also is fixedly connected with the spring 10 inside, which limits the contraction direction of the spring 10, the outer wall of the pressure column 9 is in sliding connection with the inner wall of the limiting column 6, ensuring that the compression direction of the spring 10 is consistent, ensuring the accuracy of the action, the high insulation sheet 12 provides additional safety for the device, the fuse 14 can quickly cut off the circuit when the current is abnormal, preventing the occurrence of dangerous situations such as fire, and the smoke exhaust mechanism 2 can effectively exhaust the smoke generated by the disconnection of the fuse 14 in time.

[0042] Please refer to the attached Figure 2 and the attached Figure 5 , the smoke exhaust mechanism 2 includes a fireproof partition 201, the outer wall of the fireproof partition 201 is fixedly connected with the inner wall of the rear shell 1, the upper side of the smoke exhaust mechanism 2 is fixedly connected with a micro smoke extractor 202, the rear side of the rear shell 1 is fixedly connected with a micro motor 203, the output end of the micro motor 203 is fixedly connected with a bevel gear 204, the upper and lower ends of the right side of the rear shell 1 are fixedly connected with a limiting ring 205, a rotating shaft 206 is rotatably connected between the two limiting rings 205, the upper side of the rotating shaft 206 is fixedly connected with a bevel gear 204, the outer walls of the two bevel gears 204 are in meshing connection, and the outer wall of the rotating shaft 206 is uniformly fixedly connected with a smoke exhaust fan 207.

[0043] Specifically, the fireproof partition 201 ensures the stability and safety of the structure, the micro smoke extractor 202 effectively extracts the smoke, the micro motor 203 is the core of the smoke exhaust mechanism 2, and is closely connected with the bevel gear 204, ensuring efficient transmission of power, the rotating shaft 206 can freely rotate, ensuring smooth operation of the smoke exhaust fan 207, the outer walls of the two bevel gears 204 are precisely meshed, ensuring stable rotation of the rotating shaft 206, and the smoke exhaust fan 207 can efficiently exhaust the smoke out of the shell under the drive of the micro motor 203.

[0044] Please refer to the attached Figure 1 , the attached Figure 2 and the attached Figure 3 , the left side of the rear shell 1 is provided with a smoke exhaust louver 16, the front side of the rear shell 1 is threadedly connected with a front cover 17, the front side of the front cover 17 is fixedly connected with a micro controller 19, the micro controller 19 is in electrical connection with the micro motor 203, the left and right sides of the front cover 17 are provided with a handle groove 18, and the front side of the front cover 17 is fixedly connected with a power switch 20.

[0045] Specifically, the smoke baffle 16 ensures that the generated smoke can be smoothly discharged, maintaining the efficient operation of the internal equipment. The electrical connection between the microcontroller 19 and the micro motor 203 ensures accurate signal transmission. The slot 18 facilitates user gripping and operation of the device. The power switch 20 can easily control the power state of the device, making it convenient and safe.

[0046] Please refer to the attached Figure 1 and attached Figure 2 The upper and lower sides of the front cover 17 are provided with long slots 23, and the inside of the long slots 23 is threadedly connected with screws 24. The upper and lower sides of the rear shell 1 are provided with fixing slots 21, and the rear side of the fixing slots 21 is threadedly connected with fixing bolts 22. The right side of the front cover 17 is threadedly connected with an inspection cover 25, and the upper and lower sides of the inspection cover 25 are provided with easy-to-grasp slots 26.

[0047] Specifically, the long slots 23 are internally threaded, facilitating the accurate screwing of the screws 24, ensuring the stable connection of the front cover 17 with the components. The fixing slots 21 enhance the stability of the structure. The inspection cover 25 facilitates daily maintenance and repair work. The easy-to-grasp slots 26 allow users to easily grasp the device during maintenance.

[0048] Working principle: When the fuse 14 is replaced after melting due to short circuit, the end of the extrusion connecting piece 8 is extruded, the spring 10 is extruded to shrink through the pressure column 9, the connecting piece 8 is rotated through the fixing column 7, the clamping piece 11 clamped on the service line 13 and the fuse 14 is separated, the fuse 14 to be replaced is removed, and the operation is repeated to connect it tightly with the service line 13. The process of replacing the fuse is simple and fast, and maintenance personnel can restore the normal operation of the circuit in a short time. Replacing the fuse does not require complex tools and professional knowledge, and can be completed by manual operation, which is especially convenient for non-professionals.

[0049] When the fuse 14 melts, smoke will be generated and needs to be discharged in time. Start the microcontroller 19, the micro smoke extractor 202 and the micro motor 203 work at the same time, the smoke is sucked to the right of the fireproof partition 201 in time, the two bevel gears 204 rotate to drive the rotating shaft 206 in the limiting ring 205 to rotate the smoke fan 207, so that the smoke is discharged out of the rear shell 1 through the smoke baffle 16. The smoke exhaust function can quickly cut off the power supply and discharge harmful smoke when a fault occurs, reducing the probability of fire. Effective smoke exhaust can reduce temperature and smoke concentration, reduce damage to equipment, thereby protecting electrical equipment from fire.

[0050] It should be pointed out finally: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A circuit protection automatic short-circuit device for a power distribution system, comprising a rear housing (1), characterized in that: The upper rear part of the rear shell (1) is fixedly connected to an inlet pipe (3), one end of the inlet pipe (3) is fixedly connected to a detector (4), the lower side of the detector (4) is fixedly connected to a fixed pipe (5), the lower rear part of the rear shell (1) is fixedly connected to an outlet pipe (15), one end of the outlet pipe (15) is fixedly connected to the fixed pipe (5), the left and right sides of the two fixed pipes (5) are fixedly connected to a limiting column (6), the interior of the limiting column (6) is fixedly connected to a spring (10), the other end of the spring (10) is fixedly connected to a pressure column (9), the outer wall of the pressure column (9) is slidably connected to the inner wall of the limiting column (6), and the inner wall of the pressure column (9) is fixedly connected to the inner wall of the limiting column (6). The left and right sides of the fixed wire tube (5) are fixedly connected to fixed columns (7), the other end of the fixed column (7) is rotatably connected to a connecting piece (8), the lower side of the connecting piece (8) is fixedly connected to one end of the pressure column (9), the upper side of the connecting piece (8) is fixedly connected to a clamping piece (11), the outer wall of the clamping piece (11) is fixedly connected to a high-insulation piece (12), the adjacent sides of the two fixed wire tubes (5) are fixedly connected to a house line (13), the outer wall of the house line (13) is clamped and connected to a fuse (14), and a smoke exhaust mechanism (2) is provided on the right side of the rear shell (1), and the smoke exhaust mechanism (2) is used for smoke exhaust and fire prevention.

2. The automatic short-circuit protection device for a power distribution system according to claim 1, characterized in that: The smoke exhaust mechanism (2) comprises a fireproof partition (201), the outer wall of the fireproof partition (201) is fixedly connected to the inner wall of the rear shell (1), the upper side of the smoke exhaust mechanism (2) is fixedly connected to a micro smoke extractor (202), the rear side of the rear shell (1) is fixedly connected to a micro motor (203), the output end of the micro motor (203) is fixedly connected to a bevel gear (204), the upper and lower ends of the right side of the rear shell (1) are fixedly connected to limit rings (205), a rotating shaft (206) is rotatably connected between the two limit rings (205), the upper side of the rotating shaft (206) is fixedly connected to a bevel gear (204), the outer walls of the two bevel gears (204) are meshingly connected, and the outer wall of the rotating shaft (206) is evenly fixedly connected to a smoke exhaust fan (207).

3. The circuit protection automatic short-circuit device for a power distribution system according to claim 1, characterized in that: A smoke exhaust louver (16) is provided on the left side of the rear shell (1), and a front cover (17) is threadedly connected to the front side of the rear shell (1).

4. The automatic short-circuit protection device for a power distribution system according to claim 3, characterized in that: A microcontroller (19) is fixedly connected to the front side of the front cover (17), and the microcontroller (19) is electrically connected to the micromotor (203).

5. The automatic short-circuit protection device for a power distribution system according to claim 3, characterized in that: The left and right sides of the front cover (17) are both provided with handle grooves (18), and the front side of the front cover (17) is fixedly connected to a power switch (20).

6. The automatic short-circuit protection device for a power distribution system according to claim 3, characterized in that: The upper and lower sides of the front cover (17) are provided with long grooves (23), and the internal threads of the long grooves (23) are connected with screws (24).

7. The automatic short-circuit protection device for a power distribution system according to claim 1, characterized in that: The upper and lower sides of the rear shell (1) are both provided with fixing grooves (21), and the rear side of the fixing groove (21) is threadedly connected with a fixing bolt (22).

8. The circuit protection automatic short-circuit device for a power distribution system according to claim 3, characterized in that: The right side of the front cover (17) is threadedly connected to an inspection cover (25), and the upper and lower sides of the inspection cover (25) are provided with easy-to-grab grooves (26).

Images