Electric leakage early warning structure of looped network switch cabinet

Abstract

The utility model belongs to the technical field of early warning mechanisms, and particularly relates to an electric leakage early warning structure of a looped network switch cabinet, which comprises a looped network cabinet body, and a direct current power supply, a current sensor, a control assembly and an alarm mechanism are mounted at the top in the looped network cabinet body in front of an electrical mounting guide rail. One end of the electromagnetic valve penetrates through the top of the ring main unit body and is sleeved with a balloon, the other end of the electromagnetic valve is in threaded connection with a connecting piece, the connecting piece comprises a reducer pipe, the reducer pipe is in threaded connection with a miniature gas storage cylinder, a connecting frame is arranged on the inner side of the reducer pipe, and a contact pin arranged on the connecting frame penetrates through the top of the miniature gas storage cylinder in an inserted mode. An air channel is formed in the contact pin in a penetrating mode, and a pressure sensor is installed on the side face of the reducer pipe. After electric leakage is sensed, the electromagnetic valve is opened to enable the pressure gas in the miniature gas storage bottle to enter the balloon, and a worker can quickly observe the balloon floating on the top of the ring main unit body so as to determine the electric leakage state of the ring main unit body.

Description

Technical Field

[0001] The utility model belongs to the technical field of early warning mechanisms, and in particular relates to a leakage early warning structure for a ring network switch cabinet. Background Art

[0002] The ring main unit is a group of electrical equipment consisting of a group of high-voltage switchgear installed in a steel plate metal cabinet or made into an assembled interval ring main unit. Its core parts use load switches and fuses.

[0003] In the prior art, a utility model patent with announcement number CN220253952U discloses a ring network switch cabinet leakage warning structure, including a ring network switch cabinet structure, a connecting rod is installed on the outer surface of the rotating shaft, and a warning block is installed at one end of the connecting rod, which solves the problem that it is difficult to find the red light of the alarm light when it emits a red light warning during the day, making it difficult to locate the position. When the motor is running, the rotating shaft rotates, which will drive the connecting rod and the warning block to rotate. During the day, when sunlight shines on the polygonal ball with a reflective lens attached, the sunlight can be reflected.

[0004] However, the above mechanism has the following problems: since the motor needs to run for a long time to drive the connecting rod and the warning block to rotate to perform the warning work, this method consumes more electricity, so a larger battery needs to be installed, thereby increasing the space occupied in the ring network cabinet, and the use of large-capacity batteries also reduces the safety of the ring network cabinet. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a leakage warning structure for a ring network switch cabinet, so as to solve the problem that the existing leakage warning structure of the ring network switch cabinet consumes a lot of power when performing long-term leakage warning work, and therefore needs to be configured with large-capacity batteries with high safety risks and large volume, thus affecting the normal use of the ring network cabinet.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a leakage warning structure of a ring network switch cabinet, comprising a ring network cabinet body, an electrical installation rail is installed on the inner side of the ring network cabinet body, a DC power supply, a current sensor, a control component and an alarm mechanism are installed on the inner top of the ring network cabinet body in front of the electrical installation rail, the alarm mechanism comprises a solenoid valve, one end of the solenoid valve passes through the top of the ring network cabinet body and is covered with a balloon, the other end of the solenoid valve is threadedly connected with a connecting piece, the connecting piece comprises a reducer, the reducer is threadedly connected with a miniature gas cylinder, a connecting frame is arranged on the inner side of the reducer, a pin arranged on the connecting frame passes through the top of the inserted miniature gas cylinder, an airway is opened on the pin, and a pressure sensor is installed on the side of the reducer.

[0007] The beneficial effects of the utility model are as follows: after sensing leakage, the solenoid valve opens under the control of the single-chip microcomputer, allowing the pressurized gas in the micro gas cylinder to enter the balloon, so that the surrounding staff can quickly observe the balloon floating on the top of the ring main cabinet, thereby determining the state of the ring main cabinet and avoiding long-term operation of electrical components with high power consumption.

[0008] As a further improvement of the above technical solution: the surface of the balloon is evenly sprayed with a reflective coating.

[0009] The beneficial effect of this improvement is that when the maintenance personnel's flashlight passes over the surface of the balloon, the light reflected by the reflective coating enables the maintenance personnel to quickly determine the location of the leaking ring main unit cabinet, effectively improving the maintenance speed.

[0010] As a further improvement of the above technical solution: the air nozzle of the balloon is sleeved on the outside of the joint, and a cable tie is sleeved on the outside of the air nozzle of the balloon.

[0011] The beneficial effect of this improvement is that, with the support of the joint, the cable tie firmly locks the air nozzle of the balloon on one end of the electromagnetic valve, effectively preventing the balloon from falling off the electromagnetic valve after the internal pressure of the balloon increases.

[0012] As a further improvement of the above technical solution: the bottom end of the pin is a conical structure.

[0013] The beneficial effect of this improvement is that when the micro gas storage bottle moves toward the upper side of the connector under the action of the threaded structure, the pin penetrates the top of the micro gas storage bottle, allowing the gas in the micro gas storage bottle to effectively enter the balloon.

[0014] As a further improvement of the above technical solution: the connecting frame is a cross-shaped plate structure, and the axis of the pin passes through the center points of the upper and lower end surfaces of the connecting frame.

[0015] The beneficial effect of this improvement is that the connecting frame can provide a stable support for the insertion needle, so that the insertion needle can stably puncture the micro gas storage cylinder.

[0016] As a further improvement of the above technical solution: the pressure sensor and the solenoid valve are electrically connected to the control component.

[0017] The beneficial effect of this improvement is: after the solenoid valve is opened, the pressure sensor detects that the air pressure in the connecting piece drops rapidly. After the control component receives and processes the electrical signal of the pressure sensor, it promptly controls the solenoid valve to close. When the pressure reaches the set threshold, the solenoid valve is promptly controlled to close to prevent the balloon from bursting due to excessive internal pressure.

[0018] As a further improvement of the above technical solution: the current sensor is electrically connected to a control component, and the control component includes a 4G communication module, a single-chip microcomputer and a relay.

[0019] The beneficial effect of this improvement is that the single-chip microcomputer in the control component receives the signal fed back by the current sensor and processes it, and then remotely sends the information to the mobile phone of the maintenance personnel through the 4G communication module.

[0020] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a structural schematic diagram of the alarm mechanism in the utility model;

[0024] Figure 4 It is a cross-sectional structural diagram of the alarm mechanism in the utility model.

[0025] In the figure: 1. ring main unit body; 2. electrical installation rail; 3. DC power supply; 4. current sensor; 5. control component; 6. alarm mechanism; 61. mini gas cylinder; 62. connector; 621. reducer; 622. connecting frame; 623. pin; 624. airway; 625. pressure sensor; 63. solenoid valve; 64. balloon; 641. connector; 642. reflective coating; 643. cable tie. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0027] Embodiment 1:

[0028] like Figure 1-Figure 4As shown: a leakage warning structure of a ring network switch cabinet, comprising a ring network cabinet body 1, an electrical installation rail 2 is installed on the inner side of the ring network cabinet body 1, a DC power supply 3, a current sensor 4, a control component 5 and an alarm mechanism 6 are installed on the inner top of the ring network cabinet body 1 in front of the electrical installation rail 2, the alarm mechanism 6 comprises an electromagnetic valve 63, one end of the electromagnetic valve 63 passes through the top of the ring network cabinet body 1 and is set with a balloon 64, the other end of the electromagnetic valve 63 is threadedly connected with a connector 62, the connector 62 comprises a reducer 621, the reducer 621 is threadedly connected with a miniature gas cylinder 61, a connecting frame 622 is arranged on the inner side of the reducer 621, and a pin 623 arranged on the connecting frame 622 passes through the micro-insertion The top of the miniature gas cylinder 61, the pin 623 is provided with an airway 624, the side of the reducer 621 is provided with a pressure sensor 625, after sensing the leakage, the solenoid valve 63 is opened under the control of the single chip microcomputer, so that the pressure gas in the miniature gas cylinder 61 enters the balloon 64, so that the surrounding staff can quickly observe the balloon 64 floating on the top of the ring main cabinet 1, thereby determining the state of the ring main cabinet 1, and avoiding the long-term operation of electrical parts with high power consumption. The surface of the balloon 64 is evenly sprayed with a reflective coating 642. When the maintenance personnel's flashlight light sweeps across the surface of the balloon 64, the light reflected by the reflective coating 642 enables the maintenance personnel to quickly determine the location of the ring main cabinet 1 with leakage. The maintenance speed is effectively improved. The air nozzle of the balloon 64 is sleeved on the outside of the joint 641. A cable tie 643 is sleeved on the outside of the air nozzle of the balloon 64. Under the support of the joint 641, the cable tie 643 firmly locks the air nozzle of the balloon 64 on one end of the electromagnetic valve 63, effectively preventing the balloon 64 from escaping from the electromagnetic valve 63 after the internal pressure of the balloon 64 increases. The bottom end of the pin 623 is a conical structure. When the micro gas cylinder 61 moves toward the upper side of the connector 62 under the action of the threaded structure, the pin 623 penetrates the top of the micro gas cylinder 61, so that the gas in the micro gas cylinder 61 effectively enters the balloon 64. The connecting frame 622 is a cross-shaped plate structure. The axis of the pin 623 passes through the center point of the upper and lower end surfaces of the connecting frame 622. The connecting frame 622 can provide a stable support for the needle 623, so that the needle 623 can stably puncture the micro gas cylinder 61. The pressure sensor 625 and the solenoid valve 63 are electrically connected to the control component 5. After the solenoid valve 63 is turned on, the pressure sensor 625 detects that the air pressure in the connecting piece 62 is rapidly reduced. After the control component 5 receives and processes the electrical signal of the pressure sensor 625, it promptly controls the solenoid valve 63 to close. When the pressure reaches the set threshold, the solenoid valve 63 is promptly controlled to close to avoid the balloon 64 from bursting due to excessive internal pressure. The current sensor 4 is electrically connected to the control component 5. The control component 5 includes a 4G communication module, a single-chip microcomputer and a relay. The single-chip microcomputer in the control component 5 receives the signal fed back by the current sensor 4 and processes it.Then the information is sent remotely to the maintenance personnel’s mobile phone via the 4G communication module.

[0029] The working principle of the present technical solution is as follows: when the current sensor 4 senses current information, it transmits the signal to the single-chip microcomputer in the control component 5, which receives and processes the signal and sends the signal to the mobile phone through the 4G module to remotely remind the maintenance personnel; at the same time, under the control of the single-chip microcomputer, the solenoid valve 63 is opened. In the short time when the solenoid valve 63 is opened, the pressurized nitrogen in the micro gas cylinder 61 is discharged through the airway 624 and quickly enters the balloon 64 to expand the volume of the balloon 64, and the internal pressure of the connector 62 drops rapidly. Before the internal pressure of the connector 62 and the balloon 64 detected by the pressure sensor 625 reaches the maximum operating internal pressure of the balloon 64, the single-chip microcomputer controls the valve circuit of the solenoid valve 63 to close. At this time, the surrounding staff can quickly observe the balloon 64 floating on the top of the ring network cabinet body 1, thereby determining the status of the ring network cabinet body 1.

[0030] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A leakage warning structure for a ring network switch cabinet, characterized in that: The invention comprises a ring network cabinet body (1), wherein an electrical installation rail (2) is installed on the inner side of the ring network cabinet body (1), and a DC power supply (3), a current sensor (4), a control component (5) and an alarm mechanism (6) are installed on the top of the ring network cabinet body (1) in front of the electrical installation rail (2). The alarm mechanism (6) comprises an electromagnetic valve (63), one end of which passes through the top of the ring network cabinet body (1) and is covered with a balloon (64), and the other end of the electromagnetic valve (63) is threaded. A connecting piece (62) is connected, the connecting piece (62) comprising a reducing tube (621), the reducing tube (621) being threadedly connected to a miniature gas storage bottle (61), a connecting frame (622) being arranged on the inner side of the reducing tube (621), a plug pin (623) being arranged on the connecting frame (622) penetrating the top of the miniature gas storage bottle (61), an air passage (624) being arranged on the plug pin (623), and a pressure sensor (625) being installed on the side of the reducing tube (621).

2. A ring network switch cabinet leakage warning structure according to claim 1, characterized in that: The surface of the balloon (64) is evenly sprayed with a reflective coating (642).

3. The leakage warning structure of a ring network switch cabinet according to claim 1 is characterized in that: The air nozzle of the balloon (64) is sleeved on the outside of the joint (641), and a cable tie (643) is sleeved on the outside of the air nozzle of the balloon (64).

4. The leakage warning structure of a ring network switch cabinet according to claim 1 is characterized in that: The bottom end of the insertion pin (623) is a cone-shaped structure.

5. The leakage warning structure of a ring network switch cabinet according to claim 1 is characterized in that: The connecting frame (622) is a cross-shaped plate structure, and the axis of the plug pin (623) passes through the center points of the upper and lower end surfaces of the connecting frame (622).

6. The leakage warning structure of a ring network switch cabinet according to claim 1 is characterized in that: The pressure sensor (625) and the solenoid valve (63) are electrically connected to the control component (5).

7. The leakage warning structure of a ring network switch cabinet according to claim 1 is characterized in that: The current sensor (4) is electrically connected to a control component (5), and the control component (5) comprises a 4G communication module, a single chip microcomputer and a relay.

Images