Liquid level breaker and power distribution device

Abstract

The application provides a liquid level circuit breaker and power distribution device, and relates to the field of power distribution protection.The liquid level circuit breaker and power distribution device comprise a circuit breaker main body, a tripping system, a liquid level control device, a liquid level detection device, and a liquid level signal processing module.The liquid level control device comprises a tripping action module and a liquid level signal processing module.The tripping action module is matched with the tripping system, and the liquid level signal processing module is connected with the tripping action module and the circuit breaker of the previous stage.The liquid level detection device is connected with the liquid level signal processing module.The liquid level circuit breaker and power distribution device can send a tripping action signal to the tripping action module and / or the circuit breaker of the previous stage according to the liquid level signal through the liquid level signal processing module to complete the tripping action, which can not only solve the problem that the circuit breaker of the electrical equipment automatically completes the tripping action after the electrical equipment is flooded, but also control the circuit breaker of the previous stage to automatically complete the tripping action, thereby reducing the risk of electric shock and the safety hazard during the maintenance of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution protection, in particular to a liquid level circuit breaker and a power distribution device. BACKGROUND

[0002] With the rapid development of urban construction, the power supply equipment such as box-type power supply device, transformer and the power consumption equipment such as traffic signal, landscape lamp, light box type advertising board and bus stop board become more and more as an important part of urban construction, but these devices are prone to produce the risk of electric leakage in the following three situations during operation: 1) cable line aging, component aging; 2) poor insulation treatment of cable line joint; 3) damage to cable line caused by excavation of road surface during urban upgrading and reconstruction such as subway repair, which will cause the insulation function of these devices to fail, and there is a great risk of electric leakage once rainwater enters, thereby posing a risk of electric shock to pedestrians or maintenance personnel and vehicles.

[0003] In the prior art, the cable line of the power supply equipment and the power consumption equipment of the municipal road is equipped with an electric leakage protection device, when the cable line is damaged and is eroded by rainwater, even if the electric leakage protection device of the cable line trips immediately, but the upper power distribution circuit breaker for supplying power to the cable line is still live, when the water level rises, the connection terminal of the cable line connected to the upper power distribution circuit breaker will be soaked, which still causes a safety hazard to pedestrians or maintenance personnel.

[0004] Therefore, there is a need for a device to improve the situation that the electric leakage protection device of the cable line trips immediately, but the upper power distribution circuit breaker for supplying power to the cable line is still live. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a liquid level circuit breaker and a power distribution device to improve the above problems.

[0006] In a first aspect, the embodiments of the present application provide a liquid level circuit breaker, comprising:

[0007] A circuit breaker body, the circuit breaker body comprising a tripping system;

[0008] A liquid level control device, the liquid level control device comprising a tripping action module and a liquid level signal processing module, the tripping action module cooperating with the tripping system, the liquid level signal processing module being connected with the tripping action module, and the liquid level signal processing module being further connected with a circuit breaker of a previous stage;

[0009] A liquid level detection device, the liquid level detection device being connected with the liquid level signal processing module;

[0010] The liquid level detection device is configured to detect a liquid level signal in the electrical equipment where the liquid level circuit breaker is located, and send the liquid level signal to the liquid level signal processing module; the liquid level signal processing module is configured to send a tripping action signal to the tripping action module and / or the circuit breaker at the previous stage according to the liquid level signal; and the tripping action module is configured to drive the tripping system to perform tripping action when receiving the tripping action signal.

[0011] With reference to the first aspect, in a first possible implementation manner of the first aspect, the tripping action module comprises an electromagnetic tripping coil, a tripping transmission mechanism and a tripping execution mechanism connected in sequence, and the tripping action module is configured to drive the tripping execution mechanism to realize tripping action with the tripping system by electromagnetic force generated by the electromagnetic tripping coil when receiving the tripping action signal.

[0012] With reference to the first aspect, in a second possible implementation manner of the first aspect, the circuit breaker main body further comprises a power module and a first wiring terminal, the power module is connected with the tripping system and the first wiring terminal respectively; and the liquid level control device comprises a second wiring terminal connected with the liquid level signal processing module, and the second wiring terminal is connected with the first wiring terminal.

[0013] With reference to the first aspect, in a third possible implementation manner of the first aspect, the liquid level detection device comprises a common point sensor, a low liquid level point sensor and a high liquid level point sensor, when the liquid level in the electrical equipment is higher than the low liquid level point sensor and lower than the high liquid level point sensor, the common point sensor and the low liquid level point sensor are turned on, and the liquid level signal processing module sends a tripping action signal to the tripping action module; when the liquid level in the electrical equipment is higher than the high liquid level point sensor, the common point sensor and the high liquid level point sensor are turned on, and the liquid level signal processing module sends a tripping action signal to the circuit breaker at the previous stage.

[0014] With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the liquid level signal processing module comprises a liquid level signal acquisition module, a liquid level signal analysis module and a liquid level signal output module connected in sequence; the liquid level signal acquisition module is configured to acquire liquid level data corresponding to the liquid level signal, the liquid level signal analysis module is configured to analyze the liquid level data, and the liquid level signal output module is configured to convert the analyzed liquid level data into a tripping action signal and send the tripping action signal to the tripping action module.

[0015] With reference to the first aspect, the embodiments of the present application provide a seventh possible implementation manner of the first aspect, wherein the liquid level circuit breaker further comprises an alarm module connected with the tripping action module; the liquid level signal processing module is further configured to send an alarm signal to the tripping action module according to the liquid level signal; and the tripping action module is further configured to control the alarm module to alarm after receiving the alarm signal.

[0016] With reference to the first aspect, the embodiments of the present application provide a sixth possible implementation manner of the first aspect, wherein the liquid level control device further comprises a test module and a test button, the test module is connected with the liquid level signal processing module and the test button respectively, the test module is configured to generate a test signal and send the test signal to the liquid level signal processing module when the test button is pressed, and the liquid level signal processing module is configured to generate a tripping action signal when the test signal is received.

[0017] With reference to the first aspect, the embodiments of the present application provide a seventh possible implementation manner of the first aspect, wherein the liquid level circuit breaker further comprises an alarm module connected with the tripping action module; the liquid level signal processing module is further configured to send an alarm signal to the tripping action module according to the liquid level signal; and the tripping action module is further configured to control the alarm module to alarm after receiving the alarm signal.

[0018] With reference to the first aspect, the embodiments of the present application provide a seventh possible implementation manner of the first aspect, wherein the liquid level circuit breaker further comprises an alarm module connected with the tripping action module; the liquid level signal processing module is further configured to send an alarm signal to the tripping action module according to the liquid level signal; and the tripping action module is further configured to control the alarm module to alarm after receiving the alarm signal.

[0019] The second aspect, the embodiments of the present application provide a power distribution device, the power distribution device comprises the above-mentioned liquid level circuit breaker, and further comprises a cabinet and a terminal device.

[0020] The liquid level circuit breaker is fixed in the cabinet and connected with the terminal device, and the liquid level circuit breaker is configured to trip and power off when the terminal device is immersed in water.

[0021] The embodiment of the present application brings the following beneficial effects: the liquid level circuit breaker and power distribution device provided by the embodiment of the present application comprises a circuit breaker main body, the circuit breaker main body comprises a tripping system, a liquid level control device, the liquid level control device comprises a tripping action module and a liquid level signal processing module, the tripping action module is matched with the tripping system, the liquid level signal processing module is connected with the tripping action module, the liquid level signal processing module is also connected with a circuit breaker at a previous stage, and a liquid level detection device is connected with the liquid level signal processing module. The liquid level circuit breaker and power distribution device can send a tripping action signal to the tripping action module and / or the circuit breaker at the previous stage according to the liquid level height signal through the liquid level signal processing module to complete the tripping action, which not only can solve the problem that the circuit breaker of the electrical equipment automatically completes the tripping action after the electrical equipment is subjected to water immersion, but also can control the circuit breaker at the previous stage to automatically complete the tripping action, thereby reducing the risk of electric shock and the safety hazard during maintenance of the equipment.

[0022] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by the structure particularly pointed out in the description, claims and drawings.

[0023] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The structural block diagram of the liquid level circuit breaker provided by the embodiment of the present application is shown in the figure;

[0026] Figure 2 The structural block diagram of another liquid level circuit breaker provided by the embodiment of the present application is shown in the figure;

[0027] Figure 3 The structural block diagram of another liquid level circuit breaker provided by the embodiment of the present application is shown in the figure;

[0028] Figure 4 The structural block diagram of the power distribution device provided by the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0029] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] With the rapid development of urban construction, power supply equipment such as box-type power supply, transformer and electric equipment such as traffic signal, landscape lamp, light box-type advertising board and bus stop board as important components of urban construction become more and more, but these devices are prone to produce leakage risk in the following three situations during operation: 1) cable line aging, component aging; 2) poor insulation treatment of cable line joint; 3) damage to cable line caused by excavation of road surface during urban upgrading and reconstruction such as subway repair, which will cause the insulation function of these devices to fail, and there is a great risk of electric leakage once rainwater enters, thereby posing a risk of electric shock to pedestrians or maintenance personnel and vehicles. In the prior art, leakage protection devices are provided for the cable lines of the power supply equipment and electric equipment of the municipal road, and when the cable line is damaged and receives rainwater erosion, even if the leakage protection device of the cable line trips immediately, the upper power distribution circuit breaker supplying power to the cable line is still live, and when the water level rises, the wiring end connected to the upper power distribution circuit breaker will be soaked, which still poses a safety hazard to pedestrians or maintenance personnel. Based on this, the embodiments of the present application provide a liquid level circuit breaker and a power distribution device to alleviate the above problems.

[0031] In order to facilitate the understanding of the present embodiment, first, a liquid level circuit breaker disclosed by the present embodiment will be described in detail.

[0032] The present application provides a liquid level circuit breaker, referring to the structure block diagram of a liquid level circuit breaker shown in Figure 1 The liquid level circuit breaker comprises:

[0033] A circuit breaker body 101, which comprises a tripping system 1011.

[0034] A liquid level control device 102, which comprises a tripping action module 1021 and a liquid level signal processing module 1022, the tripping action module 1021 is tripped in cooperation with the tripping system 1011, the liquid level signal processing module 1022 is connected with the tripping action module 1021, and the liquid level signal processing module 1022 is also connected with the upper-level circuit breaker.

[0035] A liquid level detection device 103, which is connected with the liquid level signal processing module 1022.

[0036] The liquid level detection device 103 is configured to detect a liquid level signal in the electrical equipment where the liquid level circuit breaker is located, and send the liquid level signal to the liquid level signal processing module 1022. The liquid level signal processing module 1022 is configured to send a tripping action signal to the tripping action module 1021 and / or the circuit breaker at the upper level according to the liquid level signal. The tripping action module 1021 is configured to drive the tripping system 1011 to perform tripping action when receiving the tripping action signal.

[0037] The liquid level detection device 103 includes three electrodes with different lengths, i.e., a common point sensor, a low liquid level sensor and a high liquid level sensor.

[0038] Specifically, the liquid level detection device includes the common point sensor, the low liquid level sensor and the high liquid level sensor. When the liquid level in the electrical equipment is higher than the low liquid level sensor and lower than the high liquid level sensor, the common point sensor and the low liquid level sensor are conductive, and the liquid level signal processing module sends the tripping action signal to the tripping action module. When the liquid level in the electrical equipment is higher than the high liquid level sensor, the common point sensor and the high liquid level sensor are conductive, and the liquid level signal processing module sends the tripping action signal to the circuit breaker at the upper level.

[0039] The liquid level circuit breaker and the power distribution device provided by the embodiment of the present application can send the tripping action signal to the tripping action module and / or the circuit breaker at the upper level according to the liquid level signal through the liquid level signal processing module to complete the tripping action, which not only can solve the problem that the circuit breaker of the electrical equipment automatically completes the tripping action after the electrical equipment is flooded, but also can control the circuit breaker at the upper level to automatically complete the tripping action, thereby reducing the risk of electric shock and the safety hazard during the maintenance of the equipment.

[0040] In actual use, in order to further understand how to realize the tripping function by using the liquid level circuit breaker, the structure of the liquid level circuit breaker is further refined in the embodiment of the present application, and a structural block diagram of another liquid level circuit breaker is shown in Figure 2 .

[0041] As Figure 2As shown, the tripping action module 1021 of the liquid level circuit breaker further comprises an electromagnetic tripping coil 10211, a tripping action transmission mechanism 10212 and a tripping action execution mechanism 10213 connected in sequence. The tripping action module 1021 is used to pull the tripping action transmission mechanism 10212 by the electromagnetic force generated by the electromagnetic tripping coil 10211 after receiving the tripping action signal, so as to drive the tripping action execution mechanism 10213 to realize the tripping action with the tripping system 1011.

[0042] Meanwhile, after the tripping action execution mechanism 10213 realizes the tripping action with the tripping system 1011, the tripping action execution mechanism 10213 cooperates with the travel switch to convert the normally closed\normally open point of the travel switch into a normally open\normally closed point.

[0043] The circuit breaker body 101 of the liquid level circuit breaker further comprises a power supply module 1012 and a first wiring terminal 1013, and the power supply module 1012 is connected with the tripping system 1011 and the first wiring terminal 1013 respectively. The liquid level control device comprises a second wiring terminal 1023 connected with the liquid level signal processing module 1022, and the second wiring terminal 1023 is connected with the first wiring terminal 1013.

[0044] The first wiring terminal 1013 comprises a zero line wiring terminal and a fire line wiring terminal, and the second wiring terminal 1023 comprises a zero line incoming terminal, a fire line incoming terminal, a first signal terminal and a second signal terminal. The zero line incoming terminal is connected with the zero line wiring terminal, the fire line incoming terminal is connected with the fire line wiring terminal, the first signal terminal is connected with the liquid level detection device, and the second signal terminal is connected with the circuit breaker of the previous stage.

[0045] Meanwhile, the circuit breaker body 101 further comprises a circuit breaker base, a circuit breaker face cover, an overcurrent protection system and a short circuit protection system, which respectively play the functions of supporting, top protection, overcurrent protection and short circuit protection for the circuit breaker body 101, so as to prevent the circuit breaker body 101 from being damaged by external force, large current and short circuit current.

[0046] The liquid level signal processing module 1022 of the liquid level circuit breaker comprises a liquid level signal acquisition module 10221, a liquid level signal analysis module 10222 and a liquid level signal output module 10223 connected in sequence. The liquid level signal acquisition module 10221 is used to acquire the liquid level data corresponding to the liquid level height signal, the liquid level signal analysis module 10222 is used to analyze the liquid level data, and the liquid level signal output module 10223 is used to convert the analyzed liquid level data into a tripping action signal and send it to the tripping action module 1021.

[0047] The liquid level control device 102 of the liquid level circuit breaker further comprises a reset button 1024 connected with the tripping action module 1021, when the reset button 1024 is pressed, the liquid level circuit breaker enters the working state, and when the liquid level circuit breaker executes the tripping action, the reset button 1024 is popped up.

[0048] Meanwhile, the tripping execution mechanism 10213 of the tripping action module 1021 is also connected with the reset button 1024, only when the reset button 1024 is pressed, the liquid level circuit breaker can work normally, and when the liquid level circuit breaker executes the tripping action due to immersion, the reset button is popped up.

[0049] The liquid level control device 102 of the liquid level circuit breaker further comprises a test module 1025 and a test button 1026, the test module 1025 is connected with the liquid level signal processing module 1022 and the test button 1026 respectively, the test module 1025 is used for generating a test signal and sending it to the liquid level signal processing module 1022 when the test button 1026 is pressed, and the liquid level signal processing module 1022 is used for generating a tripping action signal when receiving the test signal.

[0050] Meanwhile, the test module 1025 comprises a liquid level signal test module and a liquid level signal analog output module, when the test button is pressed, the liquid level signal analog output module outputs an analog signal, and the liquid level signal test module is connected with the tripping action module. When the liquid level circuit breaker is in the normal working state, the test function of the test module 1025 can be used to detect whether the liquid level protection function of the liquid level circuit breaker is normal, when the test button 1026 of the liquid level circuit breaker is pressed, the liquid level signal test module generates an analog liquid level signal and sends it to the liquid level signal analog output module, the liquid level signal analog output module sends information to the liquid level signal output module 10223, the liquid level signal output module 10223 sends a tripping action signal, the tripping action module 1021 receives the tripping action signal and drives the electromagnetic tripping coil 10211 to generate electromagnetic force, the electromagnetic force drives the tripping action transmission mechanism 10212 to drive the tripping execution mechanism 10213 to realize the tripping action with the tripping system 1011, at this time, the liquid level protection function of the liquid level circuit breaker is normal.

[0051] It should be further explained that the liquid level control device 102 further comprises a base and a cover, the reset button and the test button are arranged on the base.

[0052] In actual use, in order to inform the user when the liquid level circuit breaker executes the tripping action due to immersion, the alarm module is arranged on the liquid level circuit breaker in the embodiment of the application, when the liquid level circuit breaker executes the tripping action due to immersion, the alarm module sends an alarm signal to the user. Figure 3 The structural block diagram of another liquid level circuit breaker is shown in the figure.

[0053] AsFigure 3 As shown in the above, the liquid level circuit breaker further comprises an alarm module 104 connected with the tripping action module 1021, and the liquid level signal processing module 1022 is further configured to send an alarm signal to the tripping action module 1021 according to the liquid level signal, and the tripping action module 1021 is further configured to control the alarm module 104 to alarm after receiving the alarm signal.

[0054] Meanwhile, the liquid level circuit breaker can control the tripping action of the previous stage circuit breaker through the liquid level signal processing module 1022 connected with the tripping module of the previous stage circuit breaker, and the liquid level signal processing module 1022 is configured to send a tripping action signal and an alarm signal to the tripping module according to the liquid level signal, so that the tripping module performs the tripping action and controls the alarm connected with the tripping module to alarm.

[0055] In order to further understand the working principle of the liquid level circuit breaker in the three liquid level conditions, the embodiment of the present application also describes this part.

[0056] When the liquid level in the electrical equipment is lower than the low liquid level sensor, the liquid level circuit breaker works normally.

[0057] When the liquid level in the electrical equipment is higher than the low liquid level sensor and lower than the high liquid level sensor, the common point sensor and the low liquid level sensor are conductive, the liquid level signal acquisition module acquires the liquid level data and sends it to the liquid level signal analysis module, the liquid level signal analysis module outputs the analyzed liquid level to the liquid level signal output module, the signal output module receives the liquid level data and sends a signal instruction to drive the first switch and the second switch pin of the travel switch to be conductive, at this time, the first signal terminal is conductive, the liquid level signal output module sends a tripping action signal to the tripping action module, and the electromagnetic tripping coil of the tripping action module generates an electromagnetic force after receiving the tripping action signal, the electromagnetic force drags the tripping transmission mechanism to drive the tripping execution mechanism and the tripping system to realize the tripping action.

[0058] When the liquid level in the electrical equipment is higher than the high liquid level sensor, the common point sensor and the high liquid level sensor are conductive, the liquid level signal acquisition module acquires the liquid level data and sends it to the liquid level signal analysis module, the liquid level signal analysis module outputs the analyzed liquid level to the liquid level signal output module, the signal output module receives the liquid level data and sends a signal instruction to drive the first switch and the fourth switch pin of the travel switch to be conductive, at this time, the second signal terminal is conductive, the liquid level signal processing module sends a tripping action signal to the previous stage circuit breaker, and the tripping module of the previous stage circuit breaker realizes the tripping action after receiving the tripping action signal.

[0059] The embodiment of the present application brings the following beneficial effects: the liquid level circuit breaker provided by the embodiment of the present application comprises a circuit breaker main body, the circuit breaker main body comprises a tripping system, a liquid level control device, the liquid level control device comprises a tripping action module and a liquid level signal processing module, the tripping action module is matched with the tripping system, the liquid level signal processing module is connected with the tripping action module, the liquid level signal processing module is also connected with a circuit breaker at a previous stage, a liquid level detection device, and the liquid level detection device is connected with the liquid level signal processing module. The liquid level circuit breaker and the power distribution device can send a tripping action signal to the tripping action module and / or the circuit breaker at the previous stage according to the liquid level signal through the liquid level signal processing module to complete the tripping action, which not only can solve the problem that the circuit breaker of the electrical equipment automatically completes the tripping action after the electrical equipment is immersed in water, but also can control the circuit breaker at the previous stage to automatically complete the tripping action, thereby reducing the risk of electric shock and the safety hazard during maintenance of the equipment.

[0060] The present application also provides a power distribution device, as shown in Figure 4 As shown in Figure 4 The power distribution device comprises the aforementioned liquid level circuit breaker 401, a cabinet 402 and a terminal device 403, the liquid level circuit breaker 401 is fixed in the cabinet 402 and connected with the terminal device 403, and the liquid level circuit breaker 401 is used for tripping and power-off when the terminal device 403 is immersed in water.

[0061] The embodiment of the present application brings the following beneficial effects: the liquid level circuit breaker and the power distribution device provided by the embodiment of the present application comprise a circuit breaker main body, the circuit breaker main body comprises a tripping system, a liquid level control device, the liquid level control device comprises a tripping action module and a liquid level signal processing module, the tripping action module is matched with the tripping system, the liquid level signal processing module is connected with the tripping action module, the liquid level signal processing module is also connected with a circuit breaker at a previous stage, a liquid level detection device, and the liquid level detection device is connected with the liquid level signal processing module. The power distribution device can send a tripping action signal to the tripping action module and / or the circuit breaker at the previous stage according to the liquid level signal through the liquid level signal processing module to complete the tripping action, which not only can solve the problem that the circuit breaker of the electrical equipment automatically completes the tripping action after the electrical equipment is immersed in water, but also can control the circuit breaker at the previous stage to automatically complete the tripping action, thereby reducing the risk of electric shock and the safety hazard during maintenance of the equipment.

[0062] The power distribution device provided by the embodiment has the same implementation principle and technical effects as the aforementioned liquid level circuit breaker, and for brief description, the part of the power distribution device embodiment not mentioned can refer to the corresponding content in the aforementioned liquid level circuit breaker embodiment.

[0063] In addition, in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0064] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0065] Finally, it should be noted that: the above embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, and are not limited thereto, the protection scope of the present application is not limited thereto, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art within the technical range disclosed by the present application can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A liquid level circuit breaker, characterized in that, include: The circuit breaker body includes a tripping system; A liquid level control device, comprising a tripping action module and a liquid level signal processing module, wherein the tripping action module is tripped in conjunction with the tripping system, the liquid level signal processing module is connected to the tripping action module, and the liquid level signal processing module is also connected to the circuit breaker at the next higher level. A liquid level detection device, wherein the liquid level detection device is connected to the liquid level signal processing module; The liquid level detection device is used to detect the liquid level height signal in the electrical equipment where the liquid level circuit breaker is located, and send the liquid level height signal to the liquid level signal processing module; the liquid level signal processing module is used to send a tripping action signal to the tripping action module and / or the upstream circuit breaker according to the liquid level height signal; the tripping action module is used to drive the tripping system to perform a tripping action when it receives the tripping action signal; The liquid level detection device includes a common point sensor, a low liquid level sensor, and a high liquid level sensor. When the liquid level inside the electrical equipment is higher than the low liquid level sensor but lower than the high liquid level sensor, the common point sensor and the low liquid level sensor are connected, and the liquid level signal processing module sends a tripping action signal to the tripping action module. When the liquid level inside the electrical equipment is higher than the high liquid level sensor, the common point sensor and the high liquid level sensor are connected, and the liquid level signal processing module sends a tripping action signal to the upstream circuit breaker. The tripping action module includes an electromagnetic tripping coil, a tripping transmission mechanism, and a tripping execution mechanism connected in sequence. After receiving a tripping action signal, the tripping action module is used to pull the tripping transmission mechanism through the electromagnetic force generated by the electromagnetic tripping coil, thereby driving the tripping execution mechanism to perform a tripping action with the tripping system. The liquid level signal processing module includes a liquid level signal acquisition module, a liquid level signal analysis module, and a liquid level signal output module connected in sequence. The liquid level signal acquisition module is used to acquire liquid level data corresponding to the liquid level height signal, the liquid level signal analysis module is used to analyze the liquid level data, and the liquid level signal output module is used to convert the analyzed liquid level data into a tripping action signal and send it to the tripping action module. The liquid level control device further includes a test module and a test button. The test module is connected to the liquid level signal processing module and the test button respectively. The test module is used to generate a test signal and send it to the liquid level signal processing module when the test button is pressed. The liquid level signal processing module is used to generate a tripping action signal when it receives the test signal.

2. The liquid level circuit breaker according to claim 1, characterized in that, The circuit breaker body also includes a power supply module and a first terminal block, the power supply module being connected to the tripping system and the first terminal block respectively; the liquid level control device includes a second terminal block connected to the liquid level signal processing module, the second terminal block being connected to the first terminal block.

3. The liquid level circuit breaker according to claim 1, characterized in that, The liquid level control device also includes a reset button that is linked to the tripping action module. When the reset button is pressed, the liquid level circuit breaker enters the working state, and when the liquid level circuit breaker performs a tripping action, the reset button pops up.

4. The liquid level circuit breaker according to claim 1, characterized in that, The liquid level circuit breaker also includes an alarm module connected to the tripping action module; the liquid level signal processing module is further configured to send an alarm signal to the tripping action module based on the liquid level height signal, and the tripping action module is further configured to control the alarm module to trigger an alarm upon receiving the alarm signal.

5. The liquid level circuit breaker according to claim 1, characterized in that, The liquid level signal processing module is connected to the tripping module of the circuit breaker at the previous stage. The liquid level signal processing module is used to send a tripping action signal and an alarm signal to the tripping module according to the liquid level height signal, so that the tripping module performs a tripping action and controls the alarm connected to the tripping module to sound an alarm.

6. A power distribution device, characterized in that, The power distribution device includes the liquid level circuit breaker as described in any one of claims 1-5, and further includes a housing and terminal equipment; The liquid level circuit breaker is fixed inside the box and connected to the terminal equipment. The liquid level circuit breaker is used to trip and disconnect the power when the terminal equipment is immersed in water.

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