CN117477384B - Self-locking intelligent electrical cabinet and control method thereof - Google Patents
Self-locking intelligent electrical cabinet and control method thereof Download PDFInfo
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- CN117477384B CN117477384B CN202311811355.4A CN202311811355A CN117477384B CN 117477384 B CN117477384 B CN 117477384B CN 202311811355 A CN202311811355 A CN 202311811355A CN 117477384 B CN117477384 B CN 117477384B
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- locking
- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims description 10
- 238000012937 correction Methods 0.000 claims description 5
- 230000036760 body temperature Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 28
- 230000000694 effects Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
- E05B47/026—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving rectilinearly
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Abstract
The invention relates to a self-locking intelligent electrical cabinet and a control method thereof, which belong to the technical field of intelligent electrical cabinets and comprise a cabinet body, electrical elements, a control module, a monitoring module and a locking module, wherein the electrical elements are arranged in the cabinet body; the temperature state can be monitored, and meanwhile, the locking adjustment is flexible.
Description
Technical Field
The invention belongs to the technical field of intelligent electrical cabinets, and particularly relates to an intelligent electrical cabinet capable of self-locking and a control method thereof.
Background
An electrical cabinet is a metal cabinet for storing and protecting electrical equipment, is usually installed in factories, machine rooms, power plants, transformer substations and other places, and can perform a certain control function of an electrical system, and in general, in order to perform a protection function better while an open-close cabinet door is provided, a locking module is provided between the cabinet door and a cabinet body to lock or unlock the cabinet door.
However, during the operation process of the electrical equipment in the electrical cabinet, an emergency or accident occurs at probability, but a general electrical cabinet cannot early warn and inform an operator of the emergency, and the locking or unlocking of the locking module of the general electrical cabinet is troublesome to operate by means of a key, therefore, chinese patent CN110137812a discloses a self-locking intelligent electrical cabinet and a control method thereof, wherein the detection control device is arranged in the cabinet body and is used for detecting electrical signals of a circuit in the electrical cabinet, processing the electrical signals, storing the processed results and sending control instructions; the electromagnetic locking device comprises a lock body and a lock catch, wherein the lock body is arranged on one side of the cabinet body and is connected with the energy device, and the lock catch is arranged on the cabinet door and can be matched with the lock body to lock and unlock the intelligent electric cabinet; the energy device is used for providing electric energy for the detection control device and the electromagnetic locking device, responding to the instruction of the detection control device, conveniently locking the electric cabinet by arranging the detection control device, improving the safety, conveniently acquiring the connection condition of the electric cabinet wires by the detection control device, reflecting the connection condition to the detection control device and intelligently controlling the electromagnetic locking device; in actual use, the temperature in the electrical cabinet is also an important operation parameter, when the temperature in the electrical cabinet is too high, the hidden danger that electrical equipment in the electrical cabinet is damaged or even fires can be improved, however, in the scheme, the detection control device can only carry out risk judgment according to the electrical signal condition of a circuit in the electrical cabinet, the temperature detection effect is insufficient, and when risk data is collected, the temperature detection device only carries out storage processing, the locking or unlocking of the locking module can not be adjusted according to the emergency degree of the risk, and the locking adjustment is not flexible enough.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the self-locking intelligent electrical cabinet and the control method thereof, and the self-locking intelligent electrical cabinet has the characteristics of good temperature detection effect and flexible locking adjustment.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides an intelligent regulator cubicle that can auto-lock, includes the cabinet body, electrical component, control module, monitoring module and locking module, electrical component sets up in the cabinet body, monitoring module sets up in the cabinet body and is used for monitoring the internal temperature of cabinet, monitoring module is connected with the control module electricity and uploads cabinet body temperature data, the cabinet body articulates there is the cabinet door, locking module sets up in the cabinet body and is used for locking or unblock to the cabinet door, when control module judges temperature data to surpass the safe value, instruct locking module unblock.
As a preferable technical scheme of the invention, the monitoring module uploads the temperature data t to the control module, and the control module inputs the temperature data reference value t in advance 0 And a temperature coefficient reference value W 0 The control module is used for controlling the temperature data t and the reference value t of the temperature data 0 Calculating the temperature coefficient W 1 And judge W 1 Whether or not to exceed W 0 ；
Wherein w1=t/t 0 。
As a preferable technical scheme of the invention, the cabinet body is provided with an air inlet and an air outlet, the monitoring module comprises a plurality of temperature sensors, the temperature sensors are respectively arranged at an electric element and the air outlet in the cabinet body, the control modules upload temperature data tq at the air outlet and temperature data td at the electric element to the control module, and the control module calculates temperature data t according to tq and td;
wherein t= (k) 1 ×td+k 2 ×tq)/(k 1 +k2), where k 1 And k 2 Is constant.
As a preferred embodiment of the present invention, the monitoring module further includes a circuit detector, and the circuit detector is configured to monitor the operation value Y of the electrical component and upload the operation value Y to the control module, where the control module inputs the reference value Y of the operation value in advance 0 The control module judges that Y exceeds Y 0 And when the locking module is unlocked, the locking module is instructed.
As a preferable technical scheme of the invention, the locking module comprises a containing cavity and an electromagnet arranged above the containing cavity, wherein a lock latch is arranged at the bottom of the containing cavity and is electrically connected with the control module, the lock latch is close to or far away from the electromagnet through electrifying and outage, the lock latch locks the cabinet door when being adsorbed to the electromagnet, and the lock latch unlocks the cabinet door when being positioned at the bottom of the containing cavity.
As a preferable technical scheme of the invention, the bottom of the electromagnet and the bottom of the accommodating cavity are respectively provided with a first contact, the upper surface and the lower surface of the lock bolt are respectively provided with a second contact, the first contacts are electrically connected with the control circuit, the first contacts are communicated when the second contacts are contacted with the first contacts, and the control module judges whether the lock bolt moves in place or not through the communication of the first contacts.
As a preferred embodiment of the present invention, the control module is configured to control the electrical component according to the operation value Y of the electrical component and the reference value Y of the operation value 0 Calculating correction coefficient A 1 And judge W 1 Whether or not to exceed A 1 ×W 0 ；
Wherein A is 1 =3log(Y/Y 0 +0.5)+1，0≤Y≤Y 0 ，A1≥1。
As a preferable technical scheme of the invention, the control module judges W 1 /W 0 +Y/Y 0 If the judgment result is H, the control module instructs the locking module to unlock, wherein H is a constant and is more than or equal to 1 and less than or equal to 2.
As a preferable technical scheme of the invention, the door locking device further comprises an auxiliary locker, the auxiliary locker comprises an auxiliary electromagnet, the auxiliary electromagnet is used for adsorbing the door of the cabinet, the auxiliary electromagnet is electrically connected with the control module, the control module instructs the auxiliary locker to start when the locking module is instructed to unlock, and the control module instructs the auxiliary locker to close when the locking module is instructed to lock.
The invention also provides a control method of the self-locking intelligent electrical cabinet, which comprises the following steps:
step one: starting the operation of the electric cabinet;
step two: in the operation process of the electrical cabinet, the monitoring module is electrically connected with the control module and uploads cabinet temperature data, and when the control module judges whether the temperature data exceeds a safety value, the control module instructs the locking module to unlock.
The beneficial effects of the invention are as follows:
(1) The temperature in the electrical cabinet is automatically detected by the monitoring module, and the control module automatically unlocks when the temperature is too high and needs to be overhauled according to the detection result, so that the flexibility of locking adjustment and the operation efficiency of operators are improved while the monitoring of the temperature is finished;
(2) Obtaining temperature detection data td and tq of the electric element and the air outlet by respectively carrying out temperature detection on the electric element and the air outlet by a monitoring module, and obtaining temperature detection data td and tq of the electric element and the air outlet by t= (k) 1 ×td+k 2 ×tq)/(k 1 +k 2 ) The temperature data t is obtained through calculation, so that the influence of the local instantaneous current and the temperature change of the electrical element on the judgment of the control module is reduced, and the accuracy of temperature detection is improved;
(3) Calculating a correction coefficient A by a control module according to an operation value Y of an electric element and a reference value Y0 of the operation value 1 And use A 1 Corrected temperature coefficient reference value W 0 When the electrical element normally operates under the working condition of higher voltage, unlocking is avoided, an alarm is sent out when no fault risk exists, whether the temperature data exceeds the safety value or not is judged according to the working condition of the electrical element, and the accuracy of data processing after temperature detection is improved.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the locking module of FIG. 2 at A when locked;
FIG. 4 is an enlarged view of the locking module of FIG. 2 at A when unlocked;
FIG. 5 is a control loop block diagram of the present invention;
fig. 6 is a circuit diagram of the present invention with the first and second contacts open;
fig. 7 is a circuit diagram of the present invention when the first contact and the second contact are in communication.
Description of main reference numerals:
in the figure: 1. a cabinet body; 11. a cabinet door; 12. an electrical component; 13. an electromagnet; 14. a latch; 15. a receiving chamber; 16. a first contact; 17. a second contact; 2. and a control module.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-7, an intelligent electrical cabinet capable of self-locking and a control method thereof, the intelligent electrical cabinet comprises a cabinet body 1 and an electrical element 12, the electrical element 12 is arranged in the cabinet body 1, in the embodiment, the cabinet body 1 is a rectangular hollow cabinet body 1, the cabinet body 1 is hung on a wall or placed on the ground, the electrical element 12 is connected with external equipment and is used for receiving circuit information of the external equipment or controlling the external equipment, the cabinet body 1 is hinged with a cabinet door 11, specifically one side surface of the rectangular cabinet body 1 is hollowed out, the hollowed-out part is provided with the cabinet door 11, the cabinet door 11 is hinged with the cabinet body 1 through a hinge, meanwhile, the cabinet body 1 is provided with an air inlet and an air outlet, when the cabinet door 11 is closed, the cabinet door 11 and the cabinet body 1 form a closed inner space to prevent the electrical element 12 from being damaged by the outside, when checking or overhauling the electrical cabinet is needed, an operator opens the cabinet door 11 to enable the electrical element 12 to be exposed outside for convenient overhauling, and simultaneously, air flows into the cabinet body 1 from the air outlet and takes away heat generated when the electrical element 12 runs;
in order to prevent personnel other than operators from opening the cabinet door 11 when the electrical cabinet normally operates, the electrical cabinet further comprises a locking module, wherein the locking module is arranged on the cabinet body 1 and used for locking or unlocking the cabinet door 11, when the operators need to overhaul, the locking module is unlocked, the cabinet door 11 is opened, and after overhaul, the cabinet door 11 is closed and the locking module is locked to the cabinet door 11;
in the operation process of the structure, the electrical element 12 has probability of failure or is at risk, for example, an external control system causes excessive current passing through the electrical cabinet, so that the temperature of the electrical element in the electrical cabinet is increased, for example, the heat dissipation effect in the electrical cabinet is poor, the electrical element 12 is accumulated in the electrical cabinet in the long-time operation process, the electrical element 12 is overheated, at the moment, the electrical element 12 is damaged, although the air inlet and the air outlet promote air circulation to dissipate heat, the temperature cannot be detected, an operator needs to measure the temperature on site at the moment, and meanwhile, even if the operator knows the temperature in the electrical cabinet through other means, the operator needs to manually unlock the electrical cabinet on site to overhaul, the operation is inconvenient, and the structure fails to automatically unlock the electrical cabinet, therefore, the structure further comprises a monitoring module which is arranged in the cabinet body 1 and is used for monitoring the temperature in the cabinet body 1, the monitoring module is electrically connected with the control module 2 and uploads the temperature data of the cabinet body 1, and the control module 2 instructs the locking module to unlock when judging whether the temperature data exceeds a safe value;
specifically, the locking module is electrically connected with the control module 2, the control module 2 is input with a locking mode and an unlocking mode in advance, when the control module 2 is switched to the locking mode, the locking module is instructed to lock the cabinet door 11, when the control module 2 is switched to the unlocking mode, the locking module is instructed to unlock the cabinet door 11, the monitoring module continuously monitors the temperature in the electrical cabinet and uploads the temperature to the control module 2, when the control module 2 is switched to the locking mode, the control module 2 receives continuously uploaded temperature data from the monitoring module, the control module 2 is input with a safety value in advance, the control module 2 judges whether the temperature data exceeds the safety value in a comparison mode after receiving the temperature data each time, when the comparison result is displayed to exceed the safety value, the temperature is higher, maintenance is needed, the control module 2 is switched to the unlocking mode, and the locking module is instructed to unlock for facilitating maintenance operation of operators at the moment;
optionally, the control module 2 is electrically connected with a communication module, the control module 2 judges that the temperature data exceeds a safety value, and when the locking module is instructed to unlock, signals are synchronously sent to the communication module, and the communication module sends risk signals to an operator terminal to remind operators of overhauling;
the temperature in the electric cabinet is automatically detected by the monitoring module, and the control module 2 automatically unlocks when the temperature is too high and needs to be overhauled according to the detection result, so that the flexibility of locking and adjusting and the operation efficiency of operators are improved while the monitoring of the temperature is finished.
In the process of detecting the temperature in the cabinet body 1 by the monitoring module and in the process of judging the temperature data by the control module 2, specifically, the monitoring module uploads the temperature data t to the control module 2, and the control module 2 inputs the temperature data reference value t in advance 0 And a temperature coefficient reference value W 0 The control module 2 is used for controlling the temperature data t and the reference value t of the temperature data 0 Calculating the temperature coefficient W 1 And judge W 1 Whether or not to exceed W 0 Wherein W is 1 =t/t 0 ；
When the temperature t rises, w1=t/t 0 When the temperature data t rises to W 1 Greater than W 0 When the temperature is higher, the unlocking is needed to be conveniently overhauled, and the control module 2 instructs the locking module to unlock at the moment.
In the operation process of the structure, because the electrical system sometimes generates larger instantaneous current, the instantaneous current is normal in the operation process of the electrical system, at this time, the temperature of the electrical system can make the temperature coefficient exceed the reference value in a short time, and when the higher temperature in the short time is captured by the monitoring module and uploaded to the control module 2, the control module 2 sequentially judges that the temperature in the cabinet body 1 is higher, the control module 2 instructs the locking module to unlock under the condition that no high temperature risk exists, so that the electrical cabinet cannot accurately monitor the temperature state, the opened cabinet door 11 makes the electrical cabinet cannot exert the protection function on the electrical element 12, in order to avoid the occurrence of such a situation, the accuracy of temperature detection is improved, the monitoring module comprises a plurality of temperature sensors, the plurality of temperature sensors are respectively arranged at the electrical element 12 and the air outlet in the cabinet body 1, the plurality of control modules 2 upload the temperature data tq at the air outlet and the temperature data td at the electrical element 12 to the control module 2, and the control module 2 calculates the temperature data t according to tq and td, wherein t= (k) is calculated by the control module 2 1 ×td+k 2 ×tq)/(k 1 +k 2 ) Wherein k is 1 And k 2 Is a constant;
specifically, in this embodiment, three temperature sensors are disposed at the air outlet, the average value of temperature data detected by the three temperature sensors is tq, five temperature sensors are disposed at the electric element 12, the average value of temperature data detected by the five temperature sensors is td, tq represents the temperature of air after taking away the heat of the electric element 12 in the whole cabinet body 1, which can reflect the ambient temperature in the cabinet body 1, and when the local current is instantaneously increased, the influence of the heat at the air outlet on the temperature of the air outlet along with the instantaneous increase of the current is small because the heat at the air outlet comes from the heat emitted by the space of the whole cabinet body 1, meanwhile, td represents the average temperature of different parts of a plurality of electric elements 12 in the cabinet body 1, and when the local current is instantaneously increased, other electric elements 12 or other parts of the electric elements 12 are kept unchanged, so that the td value obtained by calculating the average value of the temperature data uploaded by the five temperature sensors can dilute the temperature caused by the instantaneous current to a certain extent, the influence of the instantaneous current on the temperature rise is reduced, and the accuracy of the detection of the temperature of the control module 2 is improved;
after the control module 2 obtains the data tq and td, the data is obtained by t= (k 1 ×td+k 2 ×tq)/(k 1 +k 2 ) Weighted average calculation is performed, weight k 1 And k 2 The operator inputs the temperature value into the control module 2 in advance according to the actual situation, when the instant temperature change causes td to be high, the t value obtained through calculation of the tq average value is closer to the actual temperature in the cabinet body 1 than the td value, the influence of the instant current and the temperature change on judgment of the control module 2 is further reduced, and the accuracy of temperature detection is further improved;
when the temperature sensor is used, when the current of the electric element 12 in the cabinet body 1 is instantaneously increased, the local temperature is temporarily increased, one temperature sensor of the monitoring module carries out average calculation on higher local temperature data and other temperature data of the electric element 12 to obtain temperature data td which is closer to the actual temperature in the cabinet body 1, and then, the data t which is closer to the actual temperature in the cabinet body 1 is obtained through weighted average calculation of td and tq;
temperature detection data td and tq of the electric element 12 and the air outlet are obtained by causing the monitoring module to perform temperature detection on the electric element 12 and the air outlet, respectively, and are obtained by t= (k) 1 ×td+k 2 ×tq)/(k 1 +k 2 ) The temperature data t is obtained through calculation, the influence of local instantaneous current and temperature change of the electric element 12 on judgment of the control module 2 is reduced, and the accuracy of temperature detection is improved.
In addition to the temperature in the cabinet 1, the operating conditions of the electrical components 12 themselves represent whether the cabinet needs to be serviced or not and therefore also need to be checked, for which purpose the monitoring module also comprises a circuit detector for monitoring the operating value Y of the electrical components 12 and uploading it to the control module 2, the control module 2 having previously entered a reference value Y for the operating value 0 The control module 2 judges that Y exceeds Y 0 When the locking module is unlocked;
specifically, Y represents the voltage in the electrical element 12, in this embodiment, the monitoring module includes a plurality of voltage detection units, the plurality of voltage detection units are disposed on the plurality of electrical elements 12 and detect the voltages of the electrical elements 12, the theoretical voltage values of different detected positions are equal, the detected values of the plurality of voltage detection units are uploaded to the control module 2, the control module 2 calculates the average value of the plurality of detected values to obtain a Y value, and when Y exceeds Y 0 When the representative voltage is too high, maintenance is needed, and the control module 2 instructs the locking module to unlock at the moment;
alternatively, when Y exceeds Y 0 When the Y value is too high, the control module 2 sends an instruction to the communication module at the same time, and the communication module sends information of the Y value to an operator to remind the operator to overhaul;
the circuit is detected by the circuit detector, and unlocking is performed according to the detection result instruction, so that the electric cabinet can further detect the fault hidden trouble of the electric cabinet, and the fault rate is reduced.
Specifically, the locking module comprises a containing cavity 15 and an electromagnet 13 arranged above the containing cavity 15, a latch 14 is arranged at the bottom of the containing cavity 15, in this embodiment, one end of the cabinet body 1, which is close to the cabinet door 11, extends towards the cabinet door 11, a platform is dug at the position of the cabinet door 11 corresponding to the platform, when the cabinet door 11 is closed, the outer wall of the platform is tightly attached to the inner wall of the groove, meanwhile, a cavity is dug on the upper surface of the platform, when the cabinet door 11 is closed, a cavity is dug at the space above the cavity of the platform, the cavities of the cabinet body 1 and the cabinet door 11 are both regular quadrangular, the cross sections of the two cavities are equal in shape and are coaxially arranged, the cavities arranged at the cabinet body 1 and the cabinet door 11 jointly form a cylindrical containing cavity 15, the axial direction of the containing cavity 15 is perpendicular to the ground, the side length of the cross section of the containing cavity 15 is 30mm, the electromagnet 13 is arranged at the cabinet body 1 part of the containing cavity 15, the axial dimension of the electromagnet 13 is smaller than the axial dimension of the cabinet body 1 part containing the cavity 15, the latch 14 is also quadrangular, the cross section of the cavity is smaller than the cross section of the containing cavity 15, the side length of the cavity is 2mm, and the latch 14 stays at the bottom of the cavity 15 under the natural action when the gravity is in the natural state;
meanwhile, the electromagnet 13 is electrically connected with the control module 2, the electromagnet 13 is electrified and powered off to enable the lock latch 14 to be close to or far away from the electromagnet 13, in the embodiment, when the control module 2 is switched to a locking mode, the lock latch 14 moves upwards under the action of electromagnetic force to be in contact with the electromagnet 13, after the axial dimension of the lock latch 14 is guaranteed to be in contact with the electromagnet 13, a part of the lock latch 14 is positioned at a part of a cabinet door 11 in the accommodating cavity 15, a part of the lock latch is positioned at a part of a cabinet body 1 in the accommodating cavity 15, when the cabinet door 11 has a trend of rotating and opening in a direction parallel to the ground, the inner wall of a cavity of the cabinet door 11 presses the lock latch 14 to drive the lock latch 14 to press the inner wall of the cavity of the cabinet body 1, and the lock latch 14 is maintained in place under the pressing of the inner wall of the cavity of the cabinet body 1 and the inner wall of the cavity of the cabinet door 11, so that locking of the locking module on the door lock is completed; when the control module 2 is switched to an unlocking mode, and the electromagnet 13 is powered off, the lock bolt 14 moves downwards to the bottom of the accommodating cavity 15 under the action of gravity, when the axial size of the lock bolt 14 is guaranteed to be positioned at the bottom of the accommodating cavity 15, the lock bolt 14 is completely positioned at the part of the cabinet body 1 in the accommodating cavity 15, and when the cabinet door 11 is opened, the lock bolt 14 does not hold the part of the cabinet door 11 of the accommodating cavity 15, and the cabinet door 11 can be opened smoothly to finish unlocking.
When the locking module locks or unlocks, the situation that the latch 14 cannot move in place is likely to occur, at the moment, the locking module cannot normally lock or unlock the cabinet door 11, in order to detect whether the latch 14 moves in place, the bottom of the electromagnet 13 and the bottom of the accommodating cavity 15 are respectively provided with a first contact 16, the upper surface and the lower surface of the latch 14 are respectively provided with a second contact 17, the first contact 16 is electrically connected with the control circuit, the first contact 16 is communicated when the second contact 17 contacts with the first contact 16, and the control module 2 judges whether the latch 14 moves in place through the communication of the first contact 16;
specifically, each first contact 16 includes two contacts protruding from the structure where the first contact 16 is located, that is, two contacts protruding downward from the bottom of the electromagnet 13 are provided at the bottom of the electromagnet 13 as first contacts 16, two contacts protruding upward from the bottom of the accommodating cavity 15 are provided at the bottom of the accommodating cavity 15, two contacts of each first contact 16 are respectively connected with a positive pole and a negative pole of one power supply end of the control circuit, a resistor is connected in series between the first contacts 16 and the negative pole, at this time, the first contacts 16 and the power supply end form a series circuit, the series circuit is disconnected at the first contacts 16, at the same time, two upwardly protruding contacts are provided on the upper surface of the latch 14 corresponding to the first contacts 16 at the bottom of the electromagnet 13 as second contacts 17, two downwardly protruding contacts are provided on the lower surface of the latch 14 corresponding to the second contacts 17 at the bottom of the accommodating cavity 15 as second contacts 17, and the two contacts of each second contact 17 are electrically connected with each other;
when the control module 2 is switched to a locking mode, the lock bar 14 moves upwards to be in contact with the electromagnet 13 under the action of the electromagnet 13, the second contact 17 at the top of the lock bar 14 enables two contacts of the first contact 16 on the electromagnet 13 to be communicated, at the moment, a circuit corresponding to the first contact 16 at the bottom of the electromagnet 13 is electrified, and the control module 2 knows that the lock bar 14 is successfully contacted with the bottom of the electromagnet 13 through the electrifying condition, so that locking is completed; when the control module 2 is switched to an unlocking mode, the lock bar 14 moves downwards to the bottom of the accommodating cavity 15 under the action of gravity, the second contact 17 at the bottom of the lock bar 14 enables two contacts of the first contact 16 at the bottom of the accommodating cavity 15 to be communicated, a circuit corresponding to the first contact 16 at the bottom of the accommodating cavity 15 is electrified, and the control module 2 knows that the lock bar 14 is successfully contacted with the bottom of the accommodating cavity 15 through the electrifying condition, so that unlocking is completed;
when the control module 2 is switched to the locking mode, the first contact 16 corresponding to the electromagnet 13 is not communicated, or is switched to the unlocking mode, and the first contact 16 corresponding to the bottom of the accommodating cavity 15 is not communicated, the control module 2 gives an alarm;
by arranging the two first contacts 16 and the second contacts 17 which correspond to each other, and enabling the control module 2 to judge whether the lock bar 14 moves in place or not through the communication of the first contacts 16, whether locking or unlocking is completed or not can be judged, and an alarm is given when the locking or unlocking is not completed, so that an operator can conveniently judge whether the locking or unlocking is executed in place or not.
In actual use, when the electrical component 12 in the cabinet body 1 needs to bear higher voltage in the normal working condition range during normal operation, the internal current will be raised, the temperature in the cabinet body 1 will be correspondingly raised, after the raising, the temperature data obtained by the monitoring module in the cabinet body 1 has a higher probability of exceeding the safety value when no fault risk exists, so that the control module 2 gives an alarm and unlocks when no fault risk exists, and the control module 2 adjusts the judgment standard for judging whether the temperature data exceeds the safety value according to the working condition of the electrical component 12 according to the operation value Y of the electrical component 12 and the reference value Y of the operation value 0 Calculating correction coefficient A 1 And judges whether W1 exceeds A 1 ×W 0 Wherein a1=3log (Y/Y 0 +0.5)+1，0≤Y≤Y 0 A1 is greater than or equal to 1 when Y exceeds Y 0 When the control module 2 takes y=y 0 When A is 1 When the calculated result of (2) is smaller than 1, the control module 2 takes A 1 =1；
When the voltage value of the electrical component 12 in the cabinet 1 rises to be higher than 0.5Y0, it means that the electrical component 12 operates under the working condition of higher voltage, so that the temperature data exceeds the safety value in the normal state with a higher probability, and the judgment standard needs to be reduced, namely the temperature coefficient reference value W needs to be increased 0 So that the temperature coefficient W1 is less likely to exceed W 0 At this time, the Y value rises, a1=3log (Y/Y 0 The value of +0.5) +1 rises, A 1 ×W 0 When Y reaches the highest value within the normal public range, i.e. Y 0 When A is 1 Approximately 1.53, at which point A 1 Is up to a maximum of about 1.53A 0 The temperature coefficient is less likely to exceed A 1 ×W 0 When the voltage value of the electrical component 12 in the cabinet 1 decreases, the probability that the temperature data exceeds the safety value in the normal state is smaller when the electrical component 12 operates under the working condition of lower voltage, and the judgment standard needs to be improved again at this time, namelyDecreasing the temperature coefficient reference value W0 so that the temperature coefficient W 1 More easily exceed W 0 At this time the Y value drops, A 1 =3log(Y/Y 0 The value of +0.5) +1 decreases, A 1 ×W 0 When Y decreases to [0,0.5Y0 ]]Within the interval of (a) 1 The value of (2) is smaller than 1, and at this time, the control module 2 takes a1=1, and the reference value of the temperature coefficient is W 0 The control module 2 is controlled to be smaller in W 0 Judging whether the temperature coefficient is too high;
by making the control module 2 dependent on the operating value Y of the electrical component 12 and the reference value Y of the operating value 0 Calculating correction coefficient A 1 And use A 1 Corrected temperature coefficient reference value W 0 The method and the device avoid unlocking and alarming when no fault risk exists when the electrical element 12 normally operates under the working condition of higher voltage, and the judgment standard of whether the temperature data exceeds the safety value is adjusted along with the working condition of the electrical element 12, so that the accuracy of data processing after temperature detection is improved.
In some cases, although both the temperature data and the operating value Y of the electrical component 12 are above the reference value, there is a high probability of failure when both data are close to the reference value, and when such a situation occurs in the above structure, the control module 2 cannot respond, and for this reason, the control module 2 determines W 1 /W 0 +Y/Y 0 If the value of H is greater than H, the control module 2 instructs the locking module to unlock when the judgment result is yes, wherein H is a constant, H is greater than or equal to 1 and less than or equal to 2, and the value of H is input to the control module 2 in advance by an operator, for example, when H=1.5, the value of W1 is greater and is 0.75W 0 The value of Y is larger and is 0.8Y 0 When there is probability of failure, W 1 /W 0 +Y/Y 0 The value of (2) is 1.55, which is larger than the value of H, and the control module 2 judges that the fault risk exists at the moment and performs unlocking;
when the control module 2 judges that there is a fault risk through the scheme, after unlocking is executed, an operator needs a certain time to reach the electric cabinet, in the time, when the cabinet door 11 after unlocking is opened under the action of gravity or under the action of air circulation, the electric cabinet is possibly damaged by the external environment, in order to maintain the closing of the cabinet door 11 after unlocking, the auxiliary locker further comprises an auxiliary electromagnet, the auxiliary electromagnet is used for adsorbing the cabinet door 11, the auxiliary electromagnet is electrically connected with the control module 2, the control module 2 instructs the auxiliary locker to start when the locking module is instructed to unlock, the control module 2 instructs the auxiliary locker to close when the locking module is instructed to lock, in the embodiment, the auxiliary electromagnet is a coil magnet with a magnetic pole facing the cabinet door 11, and the magnetic pole contacts with the inner surface of the cabinet door 11 after closing, when the control module 2 instructs the auxiliary electromagnet to start, the auxiliary electromagnet attracts the cabinet door 11 after unlocking, the autonomous opening is prevented, after the operator arrives, the operator only needs to overcome the auxiliary electromagnet to open the cabinet door 11, the maintenance is completed, the maintenance convenience of operation is considered, and the safety is guaranteed.
The invention also provides a control method of the self-locking intelligent electrical cabinet, which is suitable for the self-locking intelligent electrical cabinet and comprises the following steps:
step one: starting the operation of the electric cabinet;
step two: in the operation process of the electrical cabinet, the monitoring module is electrically connected with the control module 2 and uploads temperature data of the cabinet body 1, and when the control module 2 judges whether the temperature data exceeds a safety value, the locking module is instructed to unlock.
The working principle and the using flow of the invention are as follows:
when the cabinet door 11 is used, after the cabinet door 11 is closed, the cabinet door 11 and the cabinet body 1 form a closed inner space, so that the electric element 12 is prevented from being damaged by the outside, when the electric cabinet is required to be checked or overhauled, an operator opens the cabinet door 11, so that the electric element 12 is exposed outside, and is convenient to overhaul, meanwhile, air flows into the cabinet body 1 from the air inlet and flows out from the air outlet, and heat generated when the electric element 12 runs is taken away;
when an operator needs to overhaul, unlocking the locking module, opening the cabinet door 11, closing the cabinet door 11 after the overhaul is finished, and locking the cabinet door 11 by the locking module;
in the above process, when the control module 2 is switched to the locking mode, the control module 2 receives continuously uploaded temperature data from the monitoring module, the control module 2 inputs a safety value in advance, the control module 2 judges whether the temperature data exceeds the safety value in a comparison mode after receiving the temperature data each time, when the comparison result exceeds the safety value in reality, the temperature is higher, overhauling is needed, overhauling operation of operators at the moment is convenient, the control module 2 is switched to the unlocking mode, and the locking module is instructed to unlock.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. An intelligent regulator cubicle that can auto-lock, its characterized in that: the cabinet comprises a cabinet body, an electric element, a control module, a monitoring module and a locking module, wherein the electric element is arranged in the cabinet body, the monitoring module is arranged in the cabinet body and is used for monitoring the temperature in the cabinet body, the monitoring module is electrically connected with the control module and uploads cabinet body temperature data, the cabinet body is hinged with a cabinet door, the locking module is arranged in the cabinet body and is used for locking or unlocking the cabinet door, and when the control module judges that the temperature data exceeds a safety value, the locking module is instructed to unlock;
the monitoring module uploads the temperature data t to the control module, and the control module is pre-input with a temperature data reference value t 0 And a temperature coefficient reference value W 0 The control module is used for controlling the temperature data t and the reference value t of the temperature data 0 Calculating the temperature coefficient W 1 And judge W 1 Whether or not to exceed W 0 ；
Wherein W is 1 =t/t 0 ；
The cabinet body is provided with an air inlet and an air outlet, the monitoring module comprises a plurality of temperature sensors, the temperature sensors are respectively arranged at the electric elements and the air outlet in the cabinet body, the control modules upload temperature data tq at the air outlet and temperature data td at the electric elements to the control modules, and the control modules calculate temperature data t according to tq and td;
wherein t= (k) 1 ×td+k 2 ×tq)/(k 1 +k 2 ) Wherein k is 1 And k 2 Is a constant;
the monitoring module also comprises a circuit detector which is used for monitoring the operation value Y of the electric element and uploading the operation value Y to the control module, and the control module inputs the reference value Y of the operation value in advance 0 The control module judges that Y exceeds Y 0 When the locking module is unlocked;
the control module judges W 1 /W 0 +Y/Y 0 If the judgment result is H, the control module instructs the locking module to unlock, wherein H is a constant and is more than or equal to 1 and less than or equal to 2.
2. The self-lockable intelligent electrical cabinet of claim 1, wherein: the locking module comprises a containing cavity and an electromagnet arranged above the containing cavity, wherein a lock latch is arranged at the bottom of the containing cavity and is electrically connected with the control module, the lock latch is close to or far away from the electromagnet through electrifying and outage, the lock latch locks the cabinet door when being adsorbed to the electromagnet, and the lock latch unlocks the cabinet door when being positioned at the bottom of the containing cavity.
3. A self-lockable intelligent electrical cabinet according to claim 2, characterized in that: the bottom of the electromagnet and the bottom of the accommodating cavity are respectively provided with a first contact, the upper surface and the lower surface of the lock bolt are respectively provided with a second contact, the first contacts are electrically connected with the control circuit, the first contacts are communicated when the second contacts are contacted with the first contacts, and the control module judges whether the lock bolt moves in place or not through the communication of the first contacts.
4. The self-lockable intelligent electrical cabinet of claim 1, wherein: the control module is used for controlling the operation value Y of the electric element according to the operation value Y and the reference value Y of the operation value 0 Calculating correction coefficient A 1 And judge W 1 Whether or not to exceed A 1 ×W 0 ；
Wherein A is 1 =3log(Y/Y 0 +0.5)+1，0≤Y≤Y 0 ，A 1 Not less than 1, when Y exceeds Y 0 When the control module takes y=y 0 When A is 1 When the calculated result of (2) is smaller than 1, the control module takes A 1 =1。
5. The self-lockable intelligent electrical cabinet of claim 1, wherein: the auxiliary locking device comprises an auxiliary electromagnet, the auxiliary electromagnet is used for adsorbing a cabinet door, the auxiliary electromagnet is electrically connected with the control module, the control module instructs the auxiliary locking device to start when the instruction locking module is unlocked, and the control module instructs the auxiliary locking device to close when the instruction locking module is locked.
6. A control method of a self-lockable intelligent electrical cabinet, which is applicable to the self-lockable intelligent electrical cabinet according to any one of claims 1-5, and is characterized in that: comprises the following steps:
step one: starting the operation of the electric cabinet;
step two: in the operation process of the electrical cabinet, the monitoring module is electrically connected with the control module and uploads the temperature data of the cabinet body, and when the control module judges that the temperature data exceeds a safety value, the control module instructs the locking module to unlock.
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