CN116519165A - Overheat detection alarm device for switching power supply - Google Patents
Overheat detection alarm device for switching power supply Download PDFInfo
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- CN116519165A CN116519165A CN202310796654.9A CN202310796654A CN116519165A CN 116519165 A CN116519165 A CN 116519165A CN 202310796654 A CN202310796654 A CN 202310796654A CN 116519165 A CN116519165 A CN 116519165A
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 47
- 238000011282 treatment Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 79
- 239000000110 cooling liquid Substances 0.000 claims description 24
- 238000012544 monitoring process Methods 0.000 claims description 24
- 230000002159 abnormal effect Effects 0.000 claims description 21
- 238000004458 analytical method Methods 0.000 claims description 10
- 241000237983 Trochidae Species 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000007726 management method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- G01K1/08—Protective devices, e.g. casings
-
- 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
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Compared with the prior art, the overheat detection alarm device for the switching power supply comprises a fixed shell sleeved on a shell of the switching power supply, a fixed module which enables the fixed shell to be tightly fixed on the switching power supply, a temperature detection module which is arranged in the fixed shell and used for detecting the temperature of the switching power supply, a cooling module which is arranged in the fixed shell and used for cooling the temperature of the switching power supply, and a protection module which is used for carrying out protection treatment when the temperature of the switching power supply exceeds a preset height. The overheat detection alarm device for the switching power supply has reasonable structure, can improve the safety and reliability of the switching power supply, and effectively prevents damage caused by overheat.
Description
Technical Field
The invention relates to the technical field of commercial building switch power supply monitoring alarm devices, in particular to a switch power supply overheat detection alarm device.
Background
The building electrical fire is caused by various reasons, and the influence factors are various, so that the temperature, the humidity, the electricity consumption, the electric equipment, the power transmission line and the like can induce the electrical fire. However, when a large number of fire cases are synthesized, the design load of the electric circuit is much smaller than the use load, and the current of the circuit is increased due to overlarge charge load, so that the temperature of the whole electric loop including a power transmission line, a transformer and electric equipment is increased, and the conditions of poor local heat dissipation, circuit winding and the like are caused. Therefore, it is important to prevent the switching power supply from overheating and improve the fire-fighting safety of the building.
A switching power supply is a power supply device that converts electric energy into a desired voltage and current output. The flow of input electric energy is controlled by a high-frequency switch mode through a switch electronic device, and stable direct-current voltage is finally output to target equipment for use through transformation, rectification, filtering and other treatments. Switching power supplies have several advantages over conventional linear power supplies, such as high efficiency, small volume, light weight, and low heat generation. They are widely used in the fields of electronic devices, computers, communication devices, industrial control systems, household appliances, and the like.
The invention discloses a remote monitoring management system and a remote monitoring management method for an intelligent integrated switching power supply, which are disclosed by the prior art, and comprise a data acquisition layer, a power supply protection layer, an internet information intelligent processing layer and an alarm information monitoring terminal layer, wherein the data acquisition layer comprises an acquisition data blockchain communication unit and a data acquisition unit, and the acquisition data blockchain communication unit is in bidirectional connection with the data acquisition unit. According to the intelligent integrated remote monitoring management system and method for the switch power supplies, the block chain communication module is installed on the data acquisition equipment of the switch power supplies, so that the switch power supplies can perform good remote wireless data transmission and monitoring, the purpose of enabling data to be more stably transmitted in a remote mode through utilizing block chain node communication is achieved, the application range of the switch power supply management system is greatly enlarged, and a large amount of cost and labor are not required for paving and connecting lines.
The invention is made for solving the problems of low temperature control and regulation efficiency of a switching power supply, low intelligence of the temperature control and regulation of the switching power supply and the like in the prior art.
Disclosure of Invention
The invention aims to provide a overheat detection alarm device for a switching power supply, aiming at the defects existing in the prior art.
In order to overcome the defects in the prior art, the invention adopts the following technical scheme:
the overheat detection alarm device for the switch power supply comprises a fixed shell sleeved on a switch power supply shell, a fixed module which enables the fixed shell to be tightly fixed on the switch power supply, a temperature detection module which is arranged in the fixed shell and used for detecting the temperature of the switch power supply, a cooling module which is arranged in the fixed shell and used for cooling the temperature of the switch power supply, and a protection module which is used for carrying out protection treatment when the temperature of the switch power supply exceeds a preset height,
the fixed shell comprises a shell body, a cavity inside the shell body and an opening which is formed in the shell body and is communicated with the cavity, the opening is larger than the longitudinal section of the switching power supply, the opening can be sleeved on a second baffle plate which is arranged at the position of the opening and is an opening inner wall, the fixed module comprises a first groove which is formed by recessing the inner wall of one side of the opening towards the outside of the opening, a second groove which is formed by recessing the inner wall of the other side of the opening towards the outside of the opening, a first micro-expansion piece, one end of which is fixed in the first groove and the other end of which extends towards the middle of the opening, a second micro-expansion piece, a first baffle plate which is movably matched with the first groove and the opening, a second baffle plate which is movably matched with the position of the second groove and the opening, a rubber layer which is respectively arranged on the plate edge of the first baffle plate and the second baffle plate, a plurality of flexible pressure sensors which are respectively arranged on the rubber layer and the first baffle plate and the second baffle plate, and the second micro-expansion piece which are arranged on the fixed shell are respectively, and the second micro-expansion piece which are respectively arranged on the other side of the opening towards the outside of the opening are arranged on the first groove, one end of the second baffle plate is fixed on the shell, the second baffle plate is fixedly arranged on the first baffle plate, the first baffle plate and the second baffle plate is connected with the first baffle plate and the second baffle plate, and the second baffle plate which is movably matched with the first baffle plate, and the second baffle plate, and the opening can be movably matched with the second baffle plate, and the opening.
Further, the plate edge, which is correspondingly close to the second groove, of the first baffle plate is used as a matching edge, the middle part of the matching edge is relatively far away from the second groove, a concave cavity is formed by the concave arrangement of the second groove, and the first baffle plate can move back and forth in the concave cavity under the telescopic driving of the second miniature telescopic piece.
Further, the method comprises the steps of, the cooling module comprises a plurality of liquid inlets which are linearly distributed on the top shell wall of the shell, a plurality of liquid outlets which are linearly distributed on the bottom shell wall of the shell, a liquid pump which is positioned inside the shell and one end of which is communicated with the liquid inlets, a spiral pipe which is arranged on each liquid inlet in a matched manner to control the closing condition of each liquid inlet, an electric valve which is used for placing a liquid tank of cooling liquid, a first cooler for cooling liquid in the liquid tank, a liquid inlet pipe of which one end is used for being communicated with the liquid tank, a branch pipe which is provided with a plurality of branch pipes, one branch pipe of which is communicated with the other end of the liquid inlet pipe, and the rest branch pipe of which is respectively communicated with each liquid inlet, a liquid pump which drives cooling liquid in the liquid tank to the liquid inlets, a first temperature monitor which monitors the temperature of cooling liquid in the liquid tank, a plurality of liquid outlet pipes of which one ends are respectively communicated with the liquid outlets are sequentially arranged, a receiving tank which is communicated with the liquid outlet and is arranged for receiving cooling liquid transmitted by the liquid pipes, a second cooler which is used for cooling liquid in the receiving tank, a second cooler which is communicated with the liquid tank, a second cooler which is arranged in the receiving tank, a second temperature monitor which is communicated with the liquid in the liquid tank, and a second temperature monitor which is arranged in the liquid tank.
Further, the temperature detection module comprises a first temperature sensor, a second temperature sensor, an analysis unit, a database and an instruction library, wherein the first temperature sensor is laid on the rubber layer to monitor the shell temperature of the power switch, the second temperature sensor is laid on the shell to monitor the room temperature of the environment where the shell is located, the analysis unit is used for acquiring and analyzing the monitoring values of the first temperature sensor and the second temperature sensor to judge the abnormal temperature value of the switching power supply, the database is used for storing the upper limit threshold value of the operation temperature of the power switch at different room temperatures in advance, and the instruction library is used for storing the operation instructions of the cooling module corresponding to the recorded abnormal temperature values in advance, and the operation instructions comprise the operation temperature of the first cooler, the operation temperature of the second cooler and the entering quantity of cooling liquid of the spiral pipe.
Further, the analysis unit is realized by the following steps:
s101: receiving detection data of a first temperature sensor at a preset frequency, sequentially representing n pieces of monitoring data received by the first temperature sensor within a preset time period from the current time period as A1, A2 and A3 … An, and obtaining Bm of monitoring data received by a second temperature sensor, wherein n is a positive integer,
s102: inputting Bm into a database to obtain an upper limit temperature threshold RE of the power switch at the current room temperature,
s103: judging the temperature state of the power switch, and calculating to obtain a temperature abnormal value exv of the power switch:
，
wherein , for the maximum monitoring value in the monitoring data received by the first temperature sensor within the current preset time period, the first temperature sensor is at the beginning of the preset time period>For the minimum monitored value in the monitored data received by the first temperature sensor within the current preset time period,
s104: when the temperature abnormal value exv is smaller than a preset upper limit abnormal value, the temperature abnormal value is input into the instruction library to generate an operation instruction for controlling the cooling module, and the operation instruction is sent to the cooling module, so that the cooling module performs cooling operation according to the operation instruction.
Further, the protection module comprises a signal receiving unit for receiving the alarm signal generated by the analysis unit, an acousto-optic generator arranged on the surface of the shell, and a signal transmitting unit connected with the electric signal of the user terminal equipment to transmit alarm information to the user terminal equipment.
The beneficial effects obtained by the invention are as follows:
1. according to the invention, through the design of the fixed shell and the use of the control switch, the clamping and fixing of the switching power supplies with different sizes can be self-adaptive, the stability and the reliability of the device are ensured, and meanwhile, the protection and overheat detection efficiency of the switching power supplies with different types are ensured.
2. According to the invention, the cooling efficiency of the switching power supply is improved by cooling the cooling liquid of the cooling module through the liquid placing box and the receiving box respectively, the flowing operation of the cooling liquid of the plurality of spiral pipes in the fixed shell is controlled by controlling the opening and closing conditions of the electric valve, and the cooling effect of the switching power supply in the shell is further controlled, so that the working temperature of the switching power supply is effectively kept within a reasonable range, and the problem caused by overheating is avoided.
3. The overheat detection alarm device for the switching power supply has the functions of self-adaptive clamping and fixing, temperature detection, temperature reduction treatment and protection, can effectively monitor and protect the switching power supply, and improves the safety and reliability of the switching power supply in the use process.
Drawings
The invention will be further understood from the following description taken in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic diagram of a switch power overheat detection alarm device according to the present invention.
Fig. 2 is a schematic structural view of a fixing module according to the present invention.
Fig. 3 is another structural schematic diagram of the fixing module of the present invention.
Fig. 4 is a schematic diagram of a temperature detection module according to the present invention.
Reference numerals illustrate: 1-shunt tube; 2-spiral tube; 3-a housing; 4-a liquid outlet pipe; 5-opening; 6-a second baffle; 7-a second groove; 8-a second micro-scale expansion; 9-cavity; 10-mating edges; 11-a first groove; 12-a first micro-scale expansion; 13-a liquid inlet pipe; 14-a first baffle; 15-cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following examples thereof; it is noted that the specific embodiments described herein are for purposes of illustration only and are not intended to be limiting. Other systems, methods, and/or features of the present embodiments will be or become apparent to one with skill in the art upon examination of the following detailed description. And the terms describing the positional relationship in the drawings are merely for illustrative purposes and are not to be construed as limiting the present patent, and specific meanings of the terms can be understood by those of ordinary skill in the art according to specific circumstances.
Embodiment one: referring to fig. 1, fig. 2, fig. 3 and fig. 4, the embodiment constructs a overheat detection alarm device for a switching power supply, where the overheat detection alarm device for the switching power supply includes a fixing case sleeved to a switch power supply housing, a fixing module for tightly fixing the fixing case to the switching power supply, a temperature detection module disposed in the fixing case for detecting a temperature of the switching power supply, a temperature reduction module disposed in the fixing case for reducing the temperature of the switching power supply, and a protection module for performing protection treatment when the temperature of the switching power supply exceeds a preset height;
the fixed shell comprises a shell, a cavity in the shell and an opening which is arranged on the shell and communicated with the cavity, wherein the opening is larger than the longitudinal section of the switching power supply, the opening can be sleeved to the switching power supply shell, and the inner wall where the opening is positioned is taken as an opening inner wall;
the fixed module comprises a first groove, a second groove, a first micro-expansion piece, a second micro-expansion piece, a first baffle plate, a second baffle plate, a rubber layer, a flexible pressure sensor and a control switch, wherein the first groove is concavely arranged from the inner wall of one side of an opening towards the outside of the opening, the second groove is concavely arranged from the inner wall of the other side of the opening towards the outside of the opening, the first micro-expansion piece is fixedly arranged in the first groove, the other end of the first micro-expansion piece extends towards the middle of the opening, the one end of the second micro-expansion piece is fixedly arranged in the second groove, the other end of the second micro-expansion piece extends towards the middle of the opening, the first baffle plate can be movably matched with the first groove and the opening, the second baffle plate can be movably matched with the second groove and the opening, the rubber layer is respectively arranged on the edges of the first baffle plate and the second baffle plate, a plurality of flexible pressure sensors are respectively arranged on the rubber layer, the control switch is arranged on the fixed shell and is used for controlling the first baffle plate and the second baffle plate to extend until the first baffle plate and the second baffle plate are in the second baffle plate to be abutted to the switch power supply shell with preset pressure, one of the first baffle plate is abutted to the adjacent to the first groove and the second baffle plate is respectively arranged on the adjacent groove;
the plate edge, which is correspondingly close to the second groove, of the first baffle is taken as a matching edge, the middle part of the matching edge is relatively far away from the second groove in a sunken mode to form a concave cavity, and the first baffle can move back and forth in the concave cavity under the telescopic driving of the second miniature telescopic piece;
the user manually sleeves the opening on the power switch shell and then opens the control switch, so that the first miniature telescopic piece stretches until the first baffle is abutted to the power switch shell with preset pressure, and meanwhile, the second miniature telescopic piece stretches until the second baffle is abutted to the power switch shell with preset pressure, and then the power switch shell is clamped and fixed between the inner opening wall of the opening, the first baffle and the second baffle, so that the self-adaptive clamping and fixing of the fixed shell to the switching power supplies with different sizes are realized;
according to the invention, through the design of the fixed shell and the use of the control switch, the clamping and fixing of the switching power supplies with different sizes can be self-adaptive, the stability and the reliability of the device are ensured, and meanwhile, the protection and overheat detection efficiency of the switching power supplies with different types are ensured.
Embodiment two: in addition to the content of the above embodiments, the cooling module includes a plurality of liquid inlets linearly distributed on the top wall of the housing, a plurality of liquid outlets linearly distributed on the bottom wall of the housing, a spiral pipe positioned inside the housing and having one end communicated with the liquid inlets and the other end communicated with the liquid outlets, an electric valve matched with each liquid inlet to control the closing condition of each liquid inlet, a liquid placing tank for placing cooling liquid, a first cooling device for cooling liquid in the liquid placing tank, a liquid inlet pipe having one end communicated with the liquid placing tank, a split pipe having a plurality of branch pipes, a liquid pump driving cooling liquid in the liquid placing tank to the liquid inlet pipe, a first temperature monitor having one end communicated with the liquid inlet and the other end communicated with the liquid outlet, a plurality of liquid outlet pipes having one end communicated with the liquid outlet and the liquid outlet in turn, a second temperature monitor for receiving liquid in the liquid receiving tank communicated with the liquid outlet and the liquid receiving tank, a second cooling device for monitoring the temperature of the liquid receiving tank receiving liquid receiving tank communicated with the liquid receiving tank, the cooling liquid is cooled by the liquid placing box and the receiving box respectively, so that the cooling efficiency of the switching power supply is improved;
the communication condition of the spiral tube and the shunt tube is controlled through the opening of the electric valve, and meanwhile, the quantity of cooling liquid in the liquid storage box entering the spiral tube is realized, so that the cooling efficiency of the switching power supply in the shell is effectively controlled;
according to the invention, the cooling efficiency of the switching power supply is improved by cooling the cooling liquid of the cooling module through the liquid placing box and the receiving box respectively, the flowing operation of the cooling liquid of the plurality of spiral pipes in the fixed shell is controlled by controlling the opening and closing conditions of the electric valve, and the cooling effect of the switching power supply in the shell is further controlled, so that the working temperature of the switching power supply is effectively kept within a reasonable range, and the problem caused by overheating is avoided.
Embodiment III: in addition to the content including the above embodiments, the temperature detection module includes a first temperature sensor laid on the rubber layer to monitor the temperature of the casing of the power switch, a second temperature sensor laid on the casing to monitor the room temperature of the environment where the casing is located, an analysis unit for acquiring and analyzing the monitored values of the first temperature sensor and the second temperature sensor to determine the abnormal temperature value of the switching power supply, a database for pre-storing the upper limit threshold values of the operation temperatures of the power switch at different room temperatures recorded in advance, and an instruction library for pre-storing the operation instructions of the cooling module corresponding to the different recorded abnormal temperature values;
the operation instruction comprises the operation temperature of the first cooler, the operation temperature of the second cooler and the entering quantity of the cooling liquid of the spiral pipe, wherein the database is obtained by the technical personnel in the neighborhood based on historical experience and a large number of repeated experimental training, and the operation instruction is not repeated here, and the analysis unit is realized through the following steps:
s101: receiving detection data of a first temperature sensor at a preset frequency, sequentially representing n pieces of monitoring data received by the first temperature sensor within a preset time period from the current time period as A1, A2 and A3 … An, and obtaining Bm of monitoring data received by a second temperature sensor, wherein n is a positive integer,
s102: inputting Bm into a database to obtain an upper limit temperature threshold RE of the power switch at the current room temperature,
s103: judging the temperature state of the power switch, and calculating to obtain a temperature abnormal value exv of the power switch:
，
wherein ,，/>for the maximum monitoring value in the monitoring data received by the first temperature sensor within the current preset time period, the first temperature sensor is provided with a first monitoring value>For the minimum monitored value in the monitored data received by the first temperature sensor within the current preset time period,
s104: when the temperature abnormal value exv is smaller than a preset upper limit abnormal value, inputting the temperature abnormal value into the instruction library to generate an operation instruction for controlling the cooling module, and simultaneously sending the operation instruction to the cooling module so that the cooling module performs cooling operation according to the operation instruction;
when the temperature abnormal value is not smaller than the upper limit abnormal value, inputting the temperature abnormal value into the instruction library to generate an operation instruction for controlling the cooling module, and simultaneously sending the operation instruction to the cooling module, so that the cooling module performs cooling operation according to the operation instruction, and simultaneously generates and sends an alarm signal to the protection module;
the protection module comprises a signal receiving unit for receiving the alarm signal generated by the analysis unit, an acousto-optic generator arranged on the surface of the shell, and a signal transmitting unit connected with the electric signal of the user terminal equipment to transmit alarm information to the user terminal equipment;
when the protection module receives an alarm signal, the acousto-optic transmitter performs acousto-optic warning operation, and meanwhile, the signal transmitting unit transmits the alarm signal to the pre-bound user terminal equipment and related personnel in time;
the overheat detection alarm device for the switching power supply has the functions of self-adaptive clamping and fixing, temperature detection, temperature reduction treatment and protection, can effectively monitor and protect the switching power supply, and improves the safety and reliability of the switching power supply in the use process.
While the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the invention. That is, the methods, systems and devices discussed above are examples. Various configurations may omit, replace, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in a different order than described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, such as different aspects and elements of the configurations may be combined in a similar manner. Furthermore, as the technology evolves, elements therein may be updated, i.e., many of the elements are examples, and do not limit the scope of the disclosure or the claims. And it is understood that various changes and modifications may be made by those skilled in the art after reading the description of the invention, and such equivalent changes and modifications are intended to fall within the scope of the invention as defined in the appended claims.
Claims (6)
1. A overheat detection alarm device of a switching power supply is characterized by comprising a fixed shell sleeved on a switch power supply shell, a fixed module which enables the fixed shell to be tightly fixed on the switching power supply, a temperature detection module which is arranged in the fixed shell and used for detecting the temperature of the switching power supply, a cooling module which is arranged in the fixed shell and used for cooling the temperature of the switching power supply, and a protection module which is used for carrying out protection treatment when the temperature of the switching power supply exceeds a preset height,
wherein the fixed shell comprises a shell, a cavity in the shell and an opening which is arranged on the shell and communicated with the cavity, the opening is larger than the longitudinal section of the switch power supply, the opening can be sleeved to the switch power supply shell, the inner wall where the opening is positioned is taken as the mouth inner wall, the fixed module comprises a first groove which is concavely arranged from the mouth inner wall of one side of the opening to the outside of the opening, a second groove which is concavely arranged from the mouth inner wall of the other side of the opening to the outside of the opening, a first micro-expansion piece, one end of which is fixed in the first groove and the other end of which extends to the middle of the opening, a second micro-expansion piece, one end of which is fixed in the second groove and the other end of which extends to the middle of the opening, a first baffle which can be movably matched to the first groove and the opening, a second baffle which can be movably matched to the second groove and the opening area, a rubber layer which is respectively arranged on the plate edge of the first baffle and the second baffle, a plurality of flexible pressure sensors which are respectively arranged on the rubber layers, and the micro-expansion pieces which are respectively arranged on the fixed shell, and the micro-expansion pieces which are used for controlling the first micro-expansion piece and the second micro-expansion piece to be arranged on the fixed shell until the first micro-expansion piece and the micro-expansion piece are controlled to be connected with the first micro-expansion piece to the first-expansion piece and the preset power supply, one of the plate edges of the first baffle plate is used for being abutted to the shell of the switching power supply, one of the plate edges of the second baffle plate is used for being abutted to the shell of the switching power supply, and the first groove and the second groove are respectively arranged on two port inner walls which are adjacently arranged.
2. The switching power supply overheat detection alarm device of claim 1, wherein a plate edge of the first baffle correspondingly close to the second groove is used as a matching edge, a concave cavity is formed by the concave arrangement of the middle part of the matching edge relatively far away from the second groove, and the first baffle can move back and forth in the concave cavity under the telescopic drive of the second miniature telescopic piece.
3. The switching power supply overheat detection alarm device of claim 2, wherein the cooling module comprises a plurality of liquid inlets which are linearly distributed on a top shell wall of the shell, a plurality of liquid outlets which are linearly distributed on a bottom shell wall of the shell, a spiral pipe which is positioned inside the shell and one end of which is communicated with the liquid inlets and the other end of which is communicated with the liquid outlets, an electric valve which is matched with the liquid inlets to control the closing condition of the liquid inlets, a liquid placing box for placing cooling liquid, a first cooling device for cooling liquid in the liquid placing box, a liquid inlet pipe of which one end is communicated with the liquid placing box, a shunt pipe of which one branch pipe is communicated with the other end of the liquid inlet pipe and the other branch pipe is respectively communicated with the liquid inlets, a liquid pump for driving the cooling liquid in the liquid placing box to the liquid inlet pipe, a first temperature monitor for monitoring the temperature of the cooling liquid in the liquid placing box, a plurality of liquid outlet pipes of which one end is respectively communicated with the liquid outlets in sequence, a liquid receiving box communicated with the liquid outlet pipe and is communicated with the liquid outlet, a second cooling box for receiving the cooling liquid transmitted by the liquid receiving box, a second cooling box for receiving the cooling liquid receiving box communicated with the liquid receiving box, a second cooling box for receiving the cooling box, and a second cooling box for receiving the cooling box for monitoring the temperature in the liquid receiving box.
4. The overheat detection alarm device for the switching power supply as claimed in claim 3, wherein the temperature detection module comprises a first temperature sensor which is laid on the rubber layer to monitor the temperature of the outer shell of the power supply switch, a second temperature sensor which is laid on the shell to monitor the room temperature of the environment where the shell is located, an analysis unit which acquires and analyzes the monitored values of the first temperature sensor and the second temperature sensor to judge the abnormal value of the temperature of the switching power supply, a database which stores in advance the upper limit threshold value of the operation temperature of the power supply switch at different room temperatures recorded, and an instruction library which stores in advance the operation instructions of the cooling module corresponding to the different recorded abnormal values of the temperature, wherein the operation instructions comprise the operation temperature of the first cooler, the operation temperature of the second cooler, and the cooling liquid entering quantity of the spiral pipe.
5. The switching power supply overheat detection alarm device of claim 4, wherein the analysis unit is implemented by:
s101: receiving detection data of a first temperature sensor at a preset frequency, sequentially representing n pieces of monitoring data received by the first temperature sensor within a preset time period from the current time period as A1, A2 and A3 … An, and obtaining Bm of monitoring data received by a second temperature sensor, wherein n is a positive integer,
s102: inputting Bm into a database to obtain an upper limit temperature threshold RE of the power switch at the current room temperature,
s103: judging the temperature state of the power switch, and calculating to obtain a temperature abnormal value exv of the power switch:
，
wherein ,，/>for the maximum monitoring value in the monitoring data received by the first temperature sensor within the current preset time period, the first temperature sensor is provided with a first monitoring value>For the minimum monitored value in the monitored data received by the first temperature sensor within the current preset time period,
s104: when the temperature abnormal value exv is smaller than a preset upper limit abnormal value, the temperature abnormal value is input into the instruction library to generate an operation instruction for controlling the cooling module, and the operation instruction is sent to the cooling module, so that the cooling module performs cooling operation according to the operation instruction.
6. The switching power supply overheat detection alarm device of claim 5, wherein the protection module comprises a signal receiving unit for receiving the alarm signal generated by the analysis unit, an acousto-optic generator provided on a surface of the housing, and a signal transmitting unit electrically connected with the user terminal device to transmit alarm information to the user terminal device.
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