Device for monitoring operation state of equipment through electricity utilization of equipment

Abstract

The invention belongs to the technical field of electric appliance monitoring equipment, and particularly relates to a device for monitoring the running state of equipment through electricity utilization of the equipment, which comprises an electric appliance cabinet, and a monitoring device is arranged in an inner cavity of the electric appliance cabinet; the monitoring device comprises a monitoring lantern ring, a winding displacement cylinder and a control box; a wire arrangement cylinder of the monitoring device is inserted into the monitoring lantern ring, a cable is inserted into the wire arrangement cylinder in a penetrating mode, and the cable extends into the electric appliance cabinet. An induction ring is arranged on the inner side of the monitoring lantern ring and connected with a Hall sensor. The invention aims to improve the unmanned monitoring of the electric appliance cabinet, can timely discover the abnormality when the power consumption is abnormal, reduces the loss and disasters, carries out the non-contact monitoring of the power transmission condition through the Hall effect, and carries out the measurement through the electromagnetic field generated when the current passes through the cable, and is also provided with an auxiliary sensor. Abnormal sound and abnormal temperature in the equipment are synchronously monitored, the monitoring comprehensiveness is improved, and the occurrence of accident disasters can be reduced through active warning.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliance monitoring equipment, and in particular to a device for monitoring the operating status of equipment through the power consumption of the equipment. Background Art

[0002] The electrical cabinet, also called the distribution cabinet or distribution box, is a kind of electrical control equipment with high circuit integration. It is responsible for the circuit allocation of various electrical devices in the venue. It is one of the important electrical equipment widely used in modern industry, commerce, residence and public facilities. Due to its high frequency of use, it is necessary to promptly detect problems in the cabinet during continuous operation. Common problems of electrical cabinets include current overload, voltage instability, flicker, electrical component failure, etc.

[0003] For example:

[0004] Voltage overload: When the current exceeds the rated current of the electrical cabinet, the electrical cabinet will make a buzzing sound;

[0005] Undervoltage: The electrical cabinet will also make a buzzing sound when it is undervoltage. At this time, the electrical cabinet is in an undervoltage state;

[0006] Fault: When there is a problem with the electrical components in the electrical cabinet, the cabinet will trip, flicker, or lose power, and the voltage and current will change abnormally. It will also make different noises, such as hissing and exploding.

[0007] Looseness: Loose electrical components inside the electrical cabinet can also cause noise, flickering, excessive instantaneous current fluctuations, and other problems;

[0008] The above problems are likely to cause fires and overall equipment failures, affecting people's production and life;

[0009] Therefore, it is particularly important to detect equipment problems in a timely manner and to intervene and maintain them in a timely manner. To this end, we have proposed a device that monitors the operating status of equipment through its power consumption. Summary of the invention

[0010] The purpose of the present invention is to provide a device for monitoring the operating status of a device through the power consumption of the device, so as to solve the problems raised in the above-mentioned background technology.

[0011] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for monitoring the operating status of equipment through the power consumption of the equipment, comprising an electrical cabinet, wherein a monitoring device is arranged in the inner cavity of the electrical cabinet;

[0012] The monitoring device comprises a monitoring ring, a wire bobbin and a control box; the wire bobbin of the monitoring device is inserted into the monitoring ring, a cable is inserted through the wire bobbin, and the cable extends into the electrical cabinet;

[0013] An induction ring is arranged on the inner side of the monitoring ring, and the induction ring is connected to a Hall sensor. A shielding shell is arranged on the outer side of the monitoring ring, and a copper wire layer is wound around the outer side of the shielding shell. A control box is arranged on the bottom of the monitoring ring, and the control box includes a main box in the middle and sub-control boxes on the left and right sides.

[0014] Preferably, an insulating sleeve is provided on the outer side of the wire drum, a limiting ring is provided on the front end of the insulating sleeve, and the front end of the monitoring sleeve abuts against the rear side of the limiting ring.

[0015] Preferably, the size of the limit ring is 1.5 times the size of the wire drum, and the monitoring ring is embedded and fixed in the cabinet body of the electrical cabinet.

[0016] Preferably, the copper wire layer tightly wraps the shielding shell to form a shielding layer; and an absorbing layer is attached to the outer side of the shielding shell;

[0017] The main body of the shielding shell is made of silicon carbide, and a copper wire layer is wound on the outside of the shielding shell. The copper wire evenly wraps the shielding shell to form a shielding layer. The outermost side of the shielding shell is provided with an absorbing layer, which is made of a carbon fiber absorbing sheet and bonded to the shielding shell.

[0018] When the external magnetic field reaches the monitoring device, it is blocked or weakened by the shielding shell, reducing the mutual interference of the electromagnetic field. The principle is that when the electromagnetic field encounters the outside of the shielding shell, it is first greatly absorbed and weakened by the absorbing plate. Then, when the electromagnetic field encounters the internal copper wire layer, an induced current is generated, thereby generating an opposite magnetic field, offsetting the original electromagnetic field, and achieving a shielding effect, because copper metal has good electromagnetic shielding performance; by absorbing and blocking to reduce and weaken the impact of the external electromagnetic field on the inside of the monitoring device, the efficiency and accuracy of monitoring can be greatly improved;

[0019] Preferably, the control box is embedded in the inner wall of the electrical cabinet, and the main box is fixed to the monitoring collar from bottom to top by bolts; the sub-control box is embedded in the inner wall of the electrical cabinet, and screws are provided at the four corners from front to back to fix the sub-control box and the electrical cabinet together;

[0020] The host box is provided with signal receiving and output ports, and has a built-in analog-to-digital converter. A data transmission line is installed on the output port. The other end of the data transmission line is connected to the control device, which can be the control system of the electrical cabinet, or connected to the control computer to receive monitoring signals and monitor the operating status of the equipment through power consumption.

[0021] Preferably, a manual switch is installed on the front side of one of the sub-control boxes, and a sensing head is also installed on the front side of the sub-control box. The sensing head is a detection sensor. The detection sensors used include temperature sensors, smoke sensors, and decibel sensors, and any two of them can be used in combination.

[0022] Preferably, a sealing gasket is provided at the connection between the limit ring and the monitoring ring, and a sealing gasket is also provided at the connection between the monitoring ring and the electrical cabinet. The sealing gasket is a rubber gasket, and a copper sheet is wrapped inside the rubber gasket.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention aims to improve the unmanned monitoring of electrical cabinets. When abnormal power consumption occurs, abnormalities can be discovered in time to reduce losses and disasters. The Hall effect is used to monitor the power transmission situation without contact. The electromagnetic field generated when the current passes through the cable is used for measurement. When the power consumption changes, the electromagnetic field will also change. When the current passes through the monitoring ring, there will be a potential difference on both sides of the channel. This potential difference is amplified and processed by the signal processing circuit and output as a voltage signal related to the change in magnetic field strength. The voltage signal is then output as a specific value, and the power consumption of the equipment is continuously monitored based on this value.

[0025] 2. A shielding shell is configured on the outside of the monitoring device, which can greatly improve the efficiency and accuracy of monitoring by absorbing and blocking the impact of external electromagnetic fields on the inside of the monitoring device. At the same time, auxiliary sensors are also provided to synchronously monitor abnormal sounds and abnormal temperatures inside the equipment, improve the comprehensiveness of monitoring, and active warnings can reduce the occurrence of accidents and disasters. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of installing the monitoring device of the present invention in an electrical cabinet;

[0027] Figure 2 This is a front view of the monitoring device of the present invention;

[0028] Figure 3 This is a disassembly diagram of the monitoring device of the present invention;

[0029] Figure 4 This is a schematic diagram of the monitoring loop of the present invention;

[0030] Figure 5 It is a schematic diagram of the shielding shell of the present invention.

[0031] In the figure: 10 electrical cabinet;

[0032] 20 monitoring device; 201 monitoring sleeve; 202 cable drum; 203 cable; 204 limiting ring; 205 insulating sleeve;

[0033] 206 induction loop; 207 shielding shell; 208 copper wire layer;

[0034] 30 control box; 301 host box; 302 sensor head; 303 manual switch; 304 sub-control box. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Example:

[0038] See also Figure 1-5 , the present invention provides a technical solution of a device for monitoring the operating status of equipment through the power consumption of the equipment: comprising an electrical cabinet 10, in which a monitoring device 20 is arranged in the inner cavity of the electrical cabinet 10;

[0039] The monitoring device 20 includes a monitoring collar 201, a wire bobbin 202 and a control box 30;

[0040] The wire drum 202 of the monitoring device 20 is inserted into the monitoring ring 201 , and a cable 203 is inserted through the wire drum 202 , and the cable 203 extends into the electrical cabinet 10 ;

[0041] An insulating casing 205 is disposed outside the cable drum 202 to isolate the cable from possible conductors outside. A limit ring 204 is disposed at the front end of the insulating casing 205. The size of the limit ring 204 is 1.5 times the size of the cable drum 202.

[0042] The front end of the monitoring collar 201 abuts against the rear side of the limiting ring 204, and the monitoring collar 201 is embedded and fixed in the cabinet body of the electrical cabinet 10;

[0043] An induction ring 206 is arranged inside the monitoring ring 201, and the induction ring 206 is connected to a Hall sensor. A shielding shell 207 is arranged outside the monitoring ring 201, and a copper wire layer 208 is wound around the outside of the shielding shell 207, and the copper wire layer 208 tightly wraps the shielding shell 207 to form a shielding layer; an absorbing layer is attached to the outside of the shielding shell 207;

[0044] A control box 30 is provided at the bottom of the monitoring collar 201. The control box 30 includes a main box 301 in the middle and sub-control boxes 304 on the left and right sides. The control box 30 is embedded in the inner wall of the electrical cabinet 10. The main box 301 is fixed to the monitoring collar 201 from bottom to top by bolts.

[0045] The sub-control box 304 is embedded in the inner wall of the electrical cabinet 10, and through-threaded screws are provided at the four corners from front to back to fix the sub-control box 304 and the electrical cabinet 10 together;

[0046] A manual switch 303 is installed on the front side of one of the sub-control boxes 304. A sensor head 302 is also installed on the front side of the sub-control box 304. The sensor head 302 is a detection sensor. The detection sensors used include a temperature sensor, a smoke sensor, and a decibel sensor. Any two of these sensors can be used in combination.

[0047] A sealing gasket is provided at the joint between the limit ring 204 and the monitoring ring 201, and a sealing gasket is also provided at the joint between the monitoring ring 201 and the electrical cabinet 10. The sealing gasket is a rubber gasket, and a copper sheet is wrapped inside the rubber gasket. The rubber gasket can enhance the anti-interference ability;

[0048] This solution provides a device that monitors the operating status of equipment through its power consumption, aiming to improve unmanned monitoring of electrical cabinets and timely detect abnormal power consumption;

[0049] Specifically, the monitoring device 20 is arranged in the inner cavity of the electrical cabinet 10. A cable hole is reserved at the rear side of the electrical cabinet 10 for connecting the cables. The present solution adopts a cable drum 202 connected between the cable hole and the cables. Firstly, the cables can be taken flexibly as a whole, and secondly, the safety is enhanced. The cable drum 202 is made of insulating, flame-retardant and heat-insulating materials, which can block the influence of static electricity conduction and local heat conduction of the electrical cabinet on the cables connected with the electrical cabinet 10.

[0050] A cable drum 202 is inserted into the cable hole, a cable is inserted into the cable drum 202, and a monitoring device 20 is connected to the cable drum 202. The monitoring device 20 monitors the power consumption changes of the equipment cables. When the power consumption in the electrical cabinet 10 is abnormal, the current and voltage transmitted by the cable also change accordingly. Normal current fluctuations are all within a certain value range, while abnormal current fluctuations will exceed or fall below the value range, presenting irregular fluctuations.

[0051] We know that when an electric current passes through a cable, it generates a magnetic field around the cable. This is because the moving charges in the current generate magnetism during the movement. The electrons in the cable are subjected to the electric field force and voltage, and begin to move in a specific direction. When the electrons move, their movement forms a steady flow, forming an electric current. The magnetic field lines generated by this current are spiral-shaped and surround the cable. The strength of the magnetic field depends on the magnitude of the current.

[0052] Correspondingly, when the power consumption of the cable is abnormal, the current in it also fluctuates, and drives the electromagnetic field to change. The stronger the current, the stronger the electromagnetic field, and the weaker the current, the weaker the electromagnetic field. Based on this principle, the Hall effect can be used for monitoring. During installation, the monitoring ring 201 is sleeved on the outside of the cable drum 203, the induction ring 206 is connected to the Hall sensor, and the cable is clamped in the induction ring 206.

[0053] Based on the Hall effect, when current passes through a conductor, there is a magnetic field around the conductor, which will generate a potential difference on both sides of the conductor. This potential difference is closely related to the current intensity and the characteristics of the conductor material;

[0054] When the current passes through the monitoring loop 206, there will be a potential difference on both sides of the channel. This potential difference is amplified and processed by the signal processing circuit and output as a voltage signal related to the change in magnetic field strength;

[0055] The signal processing circuit amplifies and processes the potential difference output by the Hall sensor to obtain a usable voltage signal. After being processed by the signal processing circuit, the Hall sensor will output a voltage signal related to the electromagnetic field strength. This signal is input into the main box 301, thus completing a single electromagnetic field measurement. The Hall sensor performs continuous monitoring. If the electromagnetic field continues to rise or fall abnormally within a certain time interval, an alarm is triggered.

[0056] The Hall sensor is also equipped with a signal amplifier, a voltage regulator and a filter. The signal amplifier amplifies the weak potential difference detected to improve the sensitivity and stability of the signal; the voltage regulator is used to maintain the stability of the sensor voltage to ensure the normal operation of the signal processing; the filter is used to remove noise signals to ensure the accuracy and stability of the output signal;

[0057] The host box 301 is provided with a signal receiving and output port, and a built-in analog-to-digital converter, and a data transmission line is installed on the output port, and the other end of the data transmission line is connected to the control device, which can be the control system of the electrical cabinet 10, or connected to the control computer to receive the monitoring signal, and monitor the operation status of the device through the power consumption;

[0058] At the same time, there is a disturbing magnetic field in the electrical cabinet 10, which will affect the efficiency of monitoring. Therefore, a shielding shell 207 is configured for the monitoring device 20. The main body of the shielding shell 207 is made of silicon carbide, and a copper wire layer 208 is wound around the outer side of the shielding shell 207. The copper wire evenly wraps the shielding shell 207 to form a shielding layer; the outermost side of the shielding shell 207 is provided with an absorbing layer, which is made of a carbon fiber absorbing sheet and is bonded to the shielding shell 207;

[0059] When the external magnetic field reaches the monitoring device 20, it is blocked or weakened outside by the shielding shell 207, reducing the mutual interference of the electromagnetic field. The principle is that when the electromagnetic field encounters the outside of the shielding shell 207, it is first greatly absorbed and weakened by the absorbing plate, and then when the electromagnetic field encounters the internal copper wire layer 208, an induced current is generated, thereby generating an opposite magnetic field to offset the original electromagnetic field and achieve a shielding effect, because copper metal has good electromagnetic shielding performance; by absorbing and blocking to reduce and weaken the influence of the external electromagnetic field on the inside of the monitoring device 20, the efficiency and accuracy of monitoring can be greatly improved;

[0060] The monitoring device 20 and the control box 30 are integrally embedded in the inner wall of the electrical cabinet 10. The main function is to wrap the cable box monitoring sensor. At the same time, it also has flexible disassembly performance and can be taken down as a whole, which is very convenient when replacing the box for maintenance;

[0061] The control box 30 is small in size, and sub-control boxes 304 are respectively arranged on both sides of the control box 30. The sub-control boxes 304 are responsible for installing auxiliary monitoring sensors, such as temperature sensors, smoke sensors, decibel sensors, or a combination of two or more. When a short circuit and fire occur inside the electrical cabinet 10, the disaster can be quickly detected, and the detection signal is transmitted and alarmed through the main box 301;

[0062] The control box 30 integrates the sensors together, which can be conveniently installed and removed in a centralized manner, and does not occupy extra space in the electrical cabinet 10, which is very convenient;

[0063] The decibel sensor is responsible for detecting abnormal sounds and vibrations in the electrical cabinet 10. For example, when the current is overloaded, the air switch or the leakage protector is overloaded and exceeds the safe carrying capacity, abnormal sounds will occur; the electrical cabinet 10 will also make a buzzing sound when it is undervoltage; if no timely intervention is made, it is easy to cause short circuits and fires, which is very dangerous. Therefore, a decibel sensor is introduced to detect abnormal sounds and provide active warnings.

[0064] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring the operating status of an equipment through the power consumption of the equipment, comprising an electrical cabinet (10), wherein a monitoring device (20) is arranged in the inner cavity of the electrical cabinet (10), characterized in that: The monitoring device (20) comprises a monitoring collar (201), a wire bobbin (202) and a control box (30); the wire bobbin (202) of the monitoring device (20) is plugged into the monitoring collar (201), a cable (203) is inserted through the wire bobbin (202), and the cable (203) extends into the electrical cabinet (10); An induction ring (206) is arranged inside the monitoring collar (201), and the induction ring (206) is connected to a Hall sensor. A shielding shell (207) is arranged outside the monitoring collar (201), and a copper wire layer (208) is wound around the outside of the shielding shell (207). A control box (30) is arranged at the bottom of the monitoring collar (201), and the control box (30) includes a main box (301) in the middle and sub-control boxes (304) on the left and right sides.

2. The device for monitoring the operating status of equipment through the power consumption of the equipment according to claim 1, characterized in that: An insulating sleeve (205) is arranged on the outer side of the cable drum (202), a limiting ring (204) is arranged at the front end of the insulating sleeve (205), and the front end of the monitoring sleeve (201) abuts against the rear side of the limiting ring (204).

3. The device for monitoring the operating status of equipment through the power consumption of the equipment according to claim 2, characterized in that: The size of the limiting ring (204) is 1.5 times the size of the wire bobbin (202), and the monitoring ring (201) is embedded and fixed in the cabinet body of the electrical cabinet (10).

4. The device for monitoring the operating status of equipment through the power consumption of the equipment according to claim 1, characterized in that: The copper wire layer (208) tightly wraps the shielding shell (207) to form a shielding layer; and a wave absorbing layer is attached to the outer side of the shielding shell (207).

5. The device for monitoring the operating status of equipment through the power consumption of the equipment according to claim 1, characterized in that: The control box (30) is embedded in the inner wall of the electrical cabinet (10), and the main box (301) is fixed to the monitoring collar (201) from bottom to top by bolts; the sub-control box (304) is embedded in the inner wall of the electrical cabinet (10), and screws are provided at four corners from front to back for through-thread connection, so as to fix the sub-control box (304) and the electrical cabinet (10) together.

6. The device for monitoring the operating status of equipment through the power consumption of the equipment according to claim 1, characterized in that: A manual switch (303) is installed on the front side of one of the sub-control boxes (304), and a sensing head (302) is also installed on the front side of the sub-control box (304). The sensing head (302) is a detection sensor. The detection sensors used include temperature sensors, smoke sensors, and decibel sensors, and any two of these sensors can be used in combination.

7. The device for monitoring the operating status of equipment through the power consumption of the equipment according to claim 2, characterized in that: A sealing gasket is provided at the connection between the limiting ring (204) and the monitoring collar (201), and a sealing gasket is also provided at the connection between the monitoring collar (201) and the electrical cabinet (10). The sealing gasket is a rubber gasket, and a copper sheet is wrapped inside the rubber gasket.

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