Passive filtering compensation device

Abstract

The utility model discloses a passive filtering compensation device, and relates to the field of electric energy control of an electric power system, the passive filtering compensation device comprises a protection assembly fixedly arranged at the top of a case, the protection assembly comprises a sphere fixedly arranged in a box body, and the surface of an inner cavity of the sphere is fixedly connected with four mounting balls through connecting rods; a water immersion sensor is fixedly connected to the bottom of each mounting ball, a liquid level sensor is fixedly mounted in the box body, a detection head of the liquid level sensor sequentially and movably penetrates through the box body and the side wall of the ball body and extends into the ball body, the liquid level of water stored in the ball body is lower than that of the water immersion sensor, and a water storage tank used for adding water to the ball body is fixedly connected to the top of the box body. In conclusion, according to the device, when the case inclines or generates vibration with a slightly large amplitude and the water sensor detects the existence of water, the power supply of the passive filtering compensation device is cut off, so that accidents such as personnel injury and electric shock are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric power system electric energy control, and in particular to a passive filter compensation device. BACKGROUND

[0002] In order to eliminate high harmonics, filter devices must be installed in the system. The main components of low-voltage passive filter compensation complete device include filter capacitors, filter reactors, circuit breakers, fuses, contactors, controller overcurrent protection, etc. According to the main harmonics of the power grid, special filter branches are set, such as commonly used 3rd, 5th, 7th and 11th filter branches.

[0003] For example, the patent with the patent number CN214313873U discloses a low-voltage passive filter compensation complete device with protection function, but there are still the following shortcomings in actual use:

[0004] When the passive filter compensation device body is tilted, the ball will roll on the limiting plate due to the tilt, and then contact the first touch switch or the fourth touch switch, causing the passive filter compensation device body to be powered off. If the shaking is too severe, the ball may be subjected to a large impact force, which may jump out of the lower concave groove in the middle of the limiting plate, or there are impurities in the groove, which will affect the sliding of the ball, so that the ball cannot contact the first touch switch or the fourth touch switch. Practical new type content

[0005] In order to improve the problem that the ball may jump out of the sliding groove and the sliding groove has impurities, the present application provides a passive filter compensation device.

[0006] The passive filter compensation device provided by the present application adopts the following technical scheme:

[0007] A passive filter compensation device, comprising a protection assembly fixedly arranged on the top of a cabinet, wherein the protection assembly comprises a ball fixedly arranged in the interior of a box body, the inner cavity surface of the ball is fixedly connected with four mounting balls through connecting rods, the bottom of each of the four mounting balls is fixedly connected with a water immersion sensor, a detection head is fixedly arranged in the interior of the box body, a liquid level sensor is movably and penetratively arranged in the box body and the side wall of the ball and extends into the interior of the ball, and the water level stored in the interior of the ball is lower than the water immersion sensor.

[0008] By adopting the above technical scheme, when the cabinet is tilted or vibrates with a slight amplitude, the water in the ball will shake, and then the water will touch the water immersion sensor. When the water immersion sensor detects the presence of water, the control system receives the electrical signal from the water immersion sensor, and then sends an instruction to the circuit controlling the passive filter compensation device. The instruction usually causes a relay or other switching device to act, thereby cutting off the power supply of the passive filter compensation device, avoiding accidents such as personal injury and electric shock.

[0009] Preferably, the box top is fixed with a water storage tank for adding water to the ball.

[0010] By adopting the above technical scheme, the water storage tank is arranged at the top of the box, so that the water can flow down without using a water pump.

[0011] Preferably, the four mounting balls are arranged in a ring array in the front, back, left and right positions of the ball.

[0012] By adopting the above technical scheme, when the case is tilted in any of the front, back, left and right directions, the water in the ball will also tilt in that direction. By arranging the water immersion sensors in the four positions, the case can be tilted in any direction, and there is always a water immersion sensor that can be sensed.

[0013] Preferably, the bottom of the water storage tank is provided with a water outlet.

[0014] By adopting the above technical scheme, the water outlet is arranged to allow the water in the water storage tank to flow out.

[0015] Preferably, the bottom of the water storage tank is fixed with a water pipe with one end extending through the side wall of the box and the ball.

[0016] By adopting the above technical scheme, the water in the water storage tank can flow into the ball through the water pipe.

[0017] Preferably, the water pipe is fixedly installed with an electromagnetic valve.

[0018] By adopting the above technical scheme, the electromagnetic valve is a device for controlling the flow of fluid. It can control the opening and closing of the water flow by changing its own on-off state. When the controller determines that the electromagnetic valve needs to be opened, it will send an opening signal to the electromagnetic valve, and the electromagnetic valve will be opened to allow water to flow through. When the controller determines that the electromagnetic valve needs to be closed, it will send a closing signal to the electromagnetic valve, and the electromagnetic valve will be closed to prevent water from flowing through.

[0019] Preferably, the top of the water storage tank is threadedly connected with a sealing cover.

[0020] By adopting the above technical scheme, it is convenient to add water to the water storage tank.

[0021] Preferably, the top of the case is fixed with an alarm.

[0022] Through the above technical scheme, when the cabinet is inclined or produces a vibration with a slightly large amplitude, the water in the ball will be shaken, and then the water will hit the water immersion sensor. When the water immersion sensor detects the presence of water, the circuit inside the water immersion sensor will change. Usually, this change will be converted into an electrical signal. This electrical signal will be transmitted to the control system. After the control system receives the electrical signal from the water immersion sensor, it will immediately identify that it is an alarm signal. Therefore, the system will trigger the alarm to emit a sound or light signal to remind people to pay attention.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the cabinet is inclined or produces a vibration with a slightly large amplitude, the water in the ball will be shaken, and then the water will hit the water immersion sensor. When the water immersion sensor detects the presence of water, the control system receives the electrical signal from the water immersion sensor, and sends an instruction to the circuit controlling the passive filter compensation device. This instruction usually causes a relay or other switching device to act, thereby cutting off the power supply of the passive filter compensation device, avoiding accidents such as personal injury and electric shock. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 is a schematic diagram of the internal structure of the box body of the present application;

[0027] Figure 3 is a left view of the cross-sectional structure of the box body of the present application;

[0028] Figure 4 is a schematic diagram of the protection assembly structure of the present application;

[0029] Figure 5 is a left view of the cross-sectional structure of the protection assembly of the present application.

[0030] Reference signs: 1, cabinet;

[0031] 2, protection assembly; 21, box body; 22, water storage tank; 23, cavity one; 24, ball; 25, connecting rod; 26, mounting ball; 27, water immersion sensor; 28, liquid level sensor; 29, cavity two; 210, water pipe; 211, water outlet; 212, sealing cover; 213, electromagnetic valve; 214, through hole;

[0032] 3, alarm. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The present application will be further described in detail.

[0034] The embodiment of the application discloses a passive filter compensation device.

[0035] Refer to Figures 1-4 A passive filter compensation device, comprising a protection assembly 2 fixed on the top of the cabinet 1, the protection assembly 2 comprises a ball 24 fixedly arranged in the box body 21, a cavity one 23 is arranged in the center of the box body 21, the shape of the cavity one 23 is matched with the ball 24, the ball 24 is fixedly arranged in the cavity one 23, four connecting rods 25 are fixedly connected to the front, back, left and right positions of the inner cavity surface of the ball 24, the four connecting rods 25 are arranged in a ring array, four mounting balls 26 are fixedly arranged at the bottom ends of the four connecting rods 25, mounting cavities are arranged in the bottom surfaces of the four mounting balls 26, a water immersion sensor 27 is fixedly arranged in the top of the mounting cavities, and an alarm 3 is fixedly arranged on the top of the cabinet 1.

[0036] When the cabinet 1 is inclined or vibrates with a large amplitude, the water in the ball 24 will shake, and then the water will touch the water immersion sensor 27, when the water immersion sensor 27 detects the existence of the water, the internal circuit of the water immersion sensor 27 will change, usually, the change will be converted into an electric signal, the electric signal will be transmitted to the control system, after the control system receives the electric signal from the water immersion sensor 27, it will immediately identify that it is an alarm signal, then the system will trigger the alarm 3 to make it emit a sound or light signal to remind people, at the same time, the system can also send an instruction to the circuit controlling the passive filter compensation device according to the preset rules or logic, the instruction usually causes a relay or other switching device to act, so as to cut off the power supply of the passive filter compensation device, and avoid accidents such as personal injury and electric shock.

[0037] Refer to Figure 5 A cavity two 29 is arranged in the box body 21 and communicates with the cavity one 23, a liquid level sensor 28 is fixedly arranged in the top of the inner cavity of the cavity two 29, a probe of the liquid level sensor 28 penetrates through the side wall of the ball 24 and extends to the inside of the ball 24, the ball 24 contains water, the water level in the ball 24 is lower than the water immersion sensor 27, a water storage tank 22 is fixedly arranged on the top of the box body 21, a water inlet is arranged on the top of the water storage tank 22, a sealing cover 212 is threadedly connected in the water inlet, a water outlet 211 is arranged on the bottom of the water storage tank 22, a water pipe 210 is fixedly connected to the bottom of the water storage tank 22 at a position corresponding to the water outlet 211, a through hole 214 is arranged on the top of the box body 21 at a position corresponding to the water outlet 211, the end of the water pipe 210 away from the water storage tank 22 penetrates through the through hole 214 and then movably penetrates through the side wall of the ball 24 and extends to the bottom end of the inside of the ball 24, the electromagnetic valve 213 and the water pipe 210 are respectively provided with threads, and the two are tightly connected by rotating.

[0038] The water in the ball 24 can slowly evaporate over time, and when the water level in the ball 24 drops, the liquid level sensor 28 senses the change in the height of the liquid and then converts the change into an electrical signal for transmission. After the controller receives the electrical signal transmitted by the liquid level sensor 28, it processes and analyzes it. When the controller determines that the electromagnetic valve 213 needs to be opened, it sends an opening signal to the electromagnetic valve 213, which opens to allow water to flow through. Then the water in the water storage tank 22 flows into the ball 24 through the water pipe 210, and when the liquid level in the ball 24 returns to the original height, the liquid level sensor 28 senses the change in the height of the liquid and then converts the change into an electrical signal for transmission. After the controller receives the electrical signal transmitted by the liquid level sensor 28, it processes and analyzes it. When the controller determines that the electromagnetic valve 213 needs to be closed, it sends a closing signal to the electromagnetic valve 213, which closes to prevent water from flowing through.

[0039] The water immersion sensor 27, the liquid level sensor 28, the electromagnetic valve 213, and the alarm 3 are all prior art, and their structural principles will not be described in detail. The device also has a single-chip microcomputer, a microprocessor, a control system, and other structures, which are not the main technology and will not be described in detail. The water immersion sensor 27 is of type KW1, the liquid level sensor 28 is of type FM-LDYWJ8000, and the electromagnetic valve 213 is of type DN08-10.

[0040] The implementation principle of the passive filter compensation device according to an embodiment of the application is as follows: when the case 1 is tilted or vibrates with a large amplitude, the water in the ball 24 will shake, and then the water will hit the water immersion sensor 27. When the water immersion sensor 27 detects the presence of water, the internal circuit will change. Usually, this change will be converted into an electrical signal, which will be transmitted to the control system. After the control system receives the electrical signal from the water immersion sensor 27, it immediately identifies it as an alarm signal. Therefore, the system triggers the alarm 3 to emit a sound or light signal to remind people to pay attention. At the same time, the system can also send instructions to the circuit controlling the passive filter compensation device according to the preset rules or logic. This instruction usually causes a relay or other switching device to act, thereby cutting off the power supply of the passive filter compensation device, avoiding accidents such as personal injury and electric shock;

[0041] The water in the ball 24 can be slowly evaporated over time, the liquid level sensor 28 senses the change of the liquid level, and then converts the change into an electrical signal for transmission. After the controller receives the electrical signal from the liquid level sensor 28, the controller sends an opening signal to the electromagnetic valve 213, and the electromagnetic valve 213 is opened to allow water to flow. Then the water in the water storage tank 22 flows into the ball 24 through the water pipe 210. When the liquid level in the ball 24 returns to the original height, the liquid level sensor 28 senses the change of the liquid level, and then converts the change into an electrical signal for transmission. The controller sends a closing signal to the electromagnetic valve 213, and the electromagnetic valve 213 is closed to prevent water from flowing.

[0042] The above is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A passive filter compensation device comprising a protection assembly (2) fixed to the top of a cabinet (1), characterized in that: The protection assembly (2) comprises a ball (24) fixed inside a box body (21), the inner cavity surface of the ball (24) is fixedly connected with four mounting balls (26) through a connecting rod (25), the bottom of each of the four mounting balls (26) is fixedly connected with a water immersion sensor (27), a liquid level sensor (28) is fixedly installed inside the box body (21) and sequentially penetrates the side wall of the ball (24) and extends into the inside of the ball (24), and the water level stored in the inside of the ball (24) is lower than the water immersion sensor (27).

2. The passive filter compensation device of claim 1, wherein: The top of the box body (21) is fixedly connected with a water storage tank (22) for adding water to the ball (24).

3. The passive filter compensation device of claim 1, wherein: The four mounting balls (26) are arranged in a ring array in four directions of front, back, left and right of the ball (24).

4. The passive filter compensation device according to claim 2, wherein the bottom of the water storage tank (22) is provided with a water outlet (211).

5. A passive filter compensation device according to claim 4, characterized in that: The bottom of the water storage tank (22) is fixedly connected with a water pipe (210) with the other end sequentially penetrating the side wall of the ball (24) and extending into the inside of the ball (24) at a position corresponding to the water outlet (211).

6. A passive filter compensation device according to claim 5, characterized in that: The water pipe (210) is fixedly installed with an electromagnetic valve (213).

7. A passive filter compensation device according to claim 6, characterized in that: The top of the water storage tank (22) is threadedly connected with a sealing cover (212) at the water inlet.

8. The passive filter compensation device of claim 1, wherein: The top of the case (1) is fixedly connected with an alarm (3).

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