CN120473937A - A fast-blow fuse device with adaptive overload protection - Google Patents

A fast-blow fuse device with adaptive overload protection

Info

Publication number
CN120473937A
CN120473937A CN202510679844.1A CN202510679844A CN120473937A CN 120473937 A CN120473937 A CN 120473937A CN 202510679844 A CN202510679844 A CN 202510679844A CN 120473937 A CN120473937 A CN 120473937A
Authority
CN
China
Prior art keywords
fusing
module
overload protection
self
adaptive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202510679844.1A
Other languages
Chinese (zh)
Inventor
陈静
陈龙
李建强
张长安
关宝玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Haosheng Electric Appliance Manufacturing Co ltd
Original Assignee
Xi'an Haosheng Electric Appliance Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Haosheng Electric Appliance Manufacturing Co ltd filed Critical Xi'an Haosheng Electric Appliance Manufacturing Co ltd
Priority to CN202510679844.1A priority Critical patent/CN120473937A/en
Publication of CN120473937A publication Critical patent/CN120473937A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/66—Power reset mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/006—Calibration or setting of parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current

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  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fuses (AREA)

Abstract

The invention discloses a self-adaptive overload protection quick fusing device, and belongs to the technical field of overload protection. The intelligent device comprises a multi-dimensional monitoring module, an intelligent processing module, a quick execution module and a communication interaction module, wherein the multi-dimensional monitoring module is used for collecting circuit current, environment temperature and humidity and equipment operation parameters in real time, the intelligent processing module is internally provided with a self-adaptive algorithm unit and dynamically calculates and adjusts a multi-stage fusing threshold value based on real-time collected data, the quick execution module comprises a composite fusing structure and an arc extinguishing unit, the composite fusing structure executes overload early warning, stage fusing or complete cutting-off actions according to the multi-stage fusing threshold value, and the communication interaction module is used for realizing remote monitoring of device states, remote configuration of threshold value parameters and uploading of fault information. According to the invention, parameters such as current, temperature and humidity are acquired in real time through the multidimensional monitoring module, the multistage fusing threshold value is dynamically adjusted by combining the self-adaptive algorithm of the intelligent processing module, the limitation of the traditional fuse threshold value fixing is broken through, the load fluctuation and environmental change can be accurately adapted, and the false fusing or the protection hysteresis is avoided.

Description

Self-adaptive overload protection quick-acting fuse device
Technical Field
The invention relates to the technical field of overload protection, in particular to a self-adaptive overload protection quick-acting fusing device.
Background
With the rapid development of modern industry, new energy and smart power grids, the power system has higher requirements on real-time performance, accuracy and intellectualization of overload protection. Traditional fusing devices (such as fuses and circuit breakers) have difficulty in meeting the protection requirements in complex scenes due to the defects of fixed threshold value, delayed response, lack of self-adaption capability and the like. For example, the instantaneous response requirement of a high-voltage platform (800V and above) of a new energy automobile on circuit protection is extremely high, and the traditional fuse is insufficient in breaking capacity under the impact of high current, so that equipment damage and even safety accidents are easily caused. In addition, in an industrial power distribution system, a circuit breaker with a fixed threshold cannot dynamically adapt to load fluctuation, and override trip or misoperation can be caused, so that system stability is affected.
The traditional fuse relies on the thermal effect of physical materials to realize protection, and the fusing threshold value is determined by the characteristics of melt materials and cannot be dynamically adjusted according to real-time load or environmental changes. For example, the low-voltage fuse type isolating switch needs to manually replace the fuse link, has high maintenance cost and slow response speed, and cannot cope with sudden short-circuit faults. In view of this, we propose a fast fusing device with adaptive overload protection.
Disclosure of Invention
The invention aims to provide a self-adaptive overload protection quick-acting fusing device, which solves the problems in the background art:
In order to achieve the above purpose, the present invention provides the following technical solutions:
The self-adaptive overload protection fast fusing device comprises a multi-dimensional monitoring module, a power supply module and a power supply module, wherein the multi-dimensional monitoring module is used for collecting circuit current, environment temperature and humidity and equipment operation parameters in real time;
the intelligent processing module is electrically connected with the multi-dimensional monitoring module, is internally provided with a self-adaptive algorithm unit, and dynamically calculates and adjusts a multi-level fusing threshold value based on real-time acquired data;
the quick execution module is electrically connected with the intelligent processing module and comprises a composite fusing structure and an arc extinguishing unit, wherein the composite fusing structure executes overload early warning, classified fusing or complete cutting action according to a multi-stage fusing threshold value;
The communication interaction module is in communication connection with the intelligent processing module and is used for realizing remote monitoring of the device state, remote configuration of the threshold parameters and uploading of fault information.
Preferably, the multi-dimensional monitoring module comprises:
The Hall current sensor is used for collecting real-time current signals of the circuit;
the temperature and humidity sensor is used for acquiring temperature and humidity data of the environment where the device is positioned;
the voltage sensor is used for monitoring the input and output voltage of the circuit;
the sampling frequency of the multidimensional monitoring module is more than or equal to 10kHz, and high-frequency updating of real-time data is ensured.
Preferably, the intelligent processing module comprises:
the microprocessor unit adopts an ARM Cortex-M4 architecture and above, and integrates a digital signal processing function;
The adaptive algorithm unit includes:
the environment compensation algorithm module dynamically corrects the initial fusing threshold according to the temperature and humidity data, and the correction formula is as follows:
T' =t 0×(1+k1ΔT+k2 Δh), where T 0 is an initial threshold, Δt is a temperature offset, Δh is a humidity offset, and k 1~k2 is an environmental impact coefficient;
And the multi-stage fusing strategy module is used for presetting at least three stages of fusing thresholds, wherein each stage of thresholds meet T early warning threshold ＜T Current limiting threshold ＜T Cut-off threshold and match different action response times.
Preferably, the composite fusing structure of the fast execution module includes:
the two conductive connecting assemblies are oppositely arranged and are electrically connected, so that the circuit conduction is realized;
the triggering mechanism is electrically connected with the intelligent processing module and drives the two conductive connecting assemblies to be separated quickly after receiving the fusing instruction;
the arc extinguishing units are arranged on two sides of the trigger mechanism.
Preferably, the device further comprises a shell, wherein the conductive connecting assembly, the triggering mechanism and the arc extinguishing unit are all arranged in the shell, and one end of the outer side of the conductive connecting assembly extends to the outside of the shell;
the conductive connecting assembly is sleeved with a connecting plate, the connecting plate is in sliding fit with the inner wall of the shell, a plurality of spring telescopic rods are arranged on the surface, close to the outer side, of the connecting plate, and the other ends of the spring telescopic rods are connected with the inner wall of the shell;
the triggering mechanism comprises a mounting frame, an insulating sheet is arranged on the inner side of the mounting frame, and an electromagnetic assembly is arranged below the mounting frame;
the arc-extinguishing unit comprises two groups of arc-extinguishing grids which are respectively arranged at two sides of the insulating sheet.
Preferably, the electromagnetic assembly comprises a first electromagnet and a second electromagnet which are oppositely arranged, the first electromagnet is arranged at the bottom of the mounting frame, and the second electromagnet is arranged at the bottom of the shell.
Preferably, the mounting bracket lower extreme is provided with the spacing, and spacing upper end is located first electro-magnet top, and first electro-magnet and second electro-magnet all are located between the inner wall of spacing both sides.
Preferably, the inner side ends of the two conductive connecting components are sleeved with the conical guide sleeves, and one ends of inclined planes of the two conical guide sleeves are opposite.
Preferably, the mounting bracket both sides all are provided with the spacing rail, mounting bracket and spacing rail sliding fit, and the spacing rail is installed in shells inner wall.
Preferably, the method further comprises:
the self-recovery module is electrically connected with the intelligent processing module, and automatically resets the rapid execution module to a standby state when fault clearance is detected and the real-time current is less than or equal to 0.8 time of rated current for 5 minutes;
And the man-machine interaction interface integrates an OLED display screen and keys, and supports the functions of local threshold configuration, historical fault inquiry and manual test.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, parameters such as current, temperature and humidity are acquired in real time through the multidimensional monitoring module, the multistage fusing threshold value is dynamically adjusted by combining the self-adaptive algorithm of the intelligent processing module, the limitation of the traditional fuse threshold value fixing is broken through, the load fluctuation and the environment change can be accurately adapted, the false fusing or the protection lag is avoided, and the accuracy and the reliability of circuit protection are obviously improved. The quick execution module adopts a composite fusing structure and an arc extinguishing unit, achieves microsecond level response, can rapidly cut off a circuit under the extreme conditions such as short circuit and the like, and compared with a traditional fuse, the quick execution module greatly shortens action time and effectively reduces risk of equipment damage due to overcurrent. The multistage fusing strategy module presets early warning, current limiting and cutting-off three-stage thresholds, and is matched with different action logics (such as early warning, current limiting, partial fusing and complete cutting-off), so that the circuit is protected in a grading manner, the whole system power failure caused by small faults can be avoided, and the core equipment can be isolated rapidly when serious faults occur, and the safety of the core equipment is guaranteed.
(2) According to the invention, the connecting plate is sleeved on the conductive connecting assembly, and the elastic force of the elastic rod is utilized to push the two conductive connecting assemblies to be connected quickly when the two conductive connecting assemblies are required to be connected through the arrangement of the elastic rod on the connecting plate, so that the conductive connecting assemblies are always kept tightly attached, and stable electrical connection is maintained. Through the setting of toper guide pin bushing, be convenient for insert between two conductive connection components fast when insulating piece moves down. The quick disconnection of the circuit is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a housing of the present invention;
FIG. 3 is a schematic view of the internal structure of the housing according to the present invention;
Fig. 4 is a schematic view of the trigger mechanism of the present invention.
The reference numerals in the figure indicate that 1, a conductive connecting component, 2, a shell, 3, a mounting rack, 4, an insulating sheet, 5, an arc extinguishing grid, 6, a first electromagnet, 7, a second electromagnet, 8, a limiting rack, 9, a conical guide sleeve, 10, a limiting rail, 11, a connecting plate, 12, a spring telescopic rod and 13, and a base.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples:
referring to fig. 1-4, a self-adaptive overload protection fast fusing device includes a multi-dimensional monitoring module for collecting circuit current, environmental temperature and humidity and equipment operation parameters in real time;
The intelligent processing module is electrically connected with the multi-dimensional monitoring module, is internally provided with a self-adaptive algorithm unit, dynamically calculates and adjusts the multi-stage fusing threshold based on real-time acquisition data, acquires parameters such as current, temperature and humidity in real time through the multi-dimensional monitoring module, dynamically adjusts the multi-stage fusing threshold by combining the self-adaptive algorithm of the intelligent processing module, breaks through the limitation of fixing the threshold of the traditional fuse, can accurately adapt to load fluctuation and environmental change, avoids false fusing or protection hysteresis, and remarkably improves the accuracy and reliability of circuit protection.
The quick execution module is electrically connected with the intelligent processing module and comprises a composite fusing structure and an arc extinguishing unit, wherein the composite fusing structure executes overload early warning, classified fusing or complete cutting-off actions according to a multistage fusing threshold value, and microsecond-level response is realized by adopting the composite fusing structure and the arc extinguishing unit, so that a circuit can be cut off rapidly under the extreme conditions of short circuit and the like, and compared with a traditional fuse, the action time is shortened greatly, and the risk of equipment damage due to overcurrent is reduced effectively.
The communication interaction module is in communication connection with the intelligent processing module and is used for realizing remote monitoring of the device state, remote configuration of the threshold parameters and uploading of fault information. The communication interaction module supports a plurality of communication modes such as Bluetooth, wi-Fi, 4G and the like, can upload equipment state and fault information in real time, and is convenient for remote monitoring and threshold configuration. And the operation and maintenance efficiency is obviously improved by combining the local operation function of the human-computer interaction interface, and the manual inspection cost is reduced.
In the present application, the multi-dimensional monitoring module includes:
The Hall current sensor is used for collecting real-time current signals of the circuit;
the temperature and humidity sensor is used for acquiring temperature and humidity data of the environment where the device is positioned;
the voltage sensor is used for monitoring the input and output voltage of the circuit;
the sampling frequency of the multidimensional monitoring module is more than or equal to 10kHz, and high-frequency updating of real-time data is ensured.
In the present application, the intelligent processing module includes:
the microprocessor unit adopts an ARM Cortex-M4 architecture and above, and integrates a Digital Signal Processing (DSP) function;
The adaptive algorithm unit includes:
the environment compensation algorithm module dynamically corrects the initial fusing threshold according to the temperature and humidity data, and the correction formula is as follows:
T' =t 0×(1+k1ΔT+k2 Δh), where T 0 is an initial threshold, Δt is a temperature offset, Δh is a humidity offset, and k 1~k2 is an environmental impact coefficient;
and the multi-stage fusing strategy module is used for presetting at least three stages of fusing thresholds, wherein each stage of thresholds meet T early warning threshold ＜T Current limiting threshold ＜T Cut-off threshold and match different action response times. The environment compensation algorithm automatically corrects the fusing threshold according to the temperature and humidity, combines the impact-resistant structure with the flame-retardant shell design, ensures the stable operation of the device under the extreme environments of minus 40 ℃ to minus 60 ℃ and humidity less than or equal to 95% RH and the like, and widens the application scene.
Specifically, the action logic of the multi-stage fusing strategy module is as follows:
When the real-time current exceeds the early warning threshold value, an early warning signal is sent through the communication interaction module, and meanwhile, a current limiting strategy (such as limiting the output power to 80% of a rated value) is started;
Triggering partial fusing (such as breaking non-critical load branches) when the real-time current exceeds a current limiting threshold and the duration is more than or equal to 100 ms;
When the real-time current exceeds the cut-off threshold value or a short-circuit signal is detected, the electromagnetic trigger mechanism instantaneously acts to completely cut off the main circuit and lock the state.
In the present application, the communication interaction module includes:
The Bluetooth 5.0/Wi-Fi dual-mode communication unit supports a 2.4GHz/5GHz frequency band, the 4G/NB-IoT remote communication unit is internally provided with an eSIM card and supports an MQTT protocol, and the state data uploaded by the communication interaction module in real time comprises real-time current, a fusing threshold value, action times, fault codes and environmental parameters.
In the present application, a composite fusing structure of a fast execution module includes:
the two conductive connecting assemblies 1 are oppositely arranged, and the two conductive connecting assemblies 1 are electrically connected to realize circuit conduction;
The triggering mechanism is electrically connected with the intelligent processing module and drives the two conductive connecting assemblies 1 to be separated quickly after receiving the fusing instruction;
the arc extinguishing units are arranged on two sides of the trigger mechanism.
In one possible embodiment, the device also comprises a state feedback sensor for detecting the opening and closing state of the fuse element and feeding back a signal to the intelligent processing module to realize closed-loop monitoring of the fuse state,
The application further comprises a shell 2, wherein the conductive connecting component 1, the triggering mechanism and the arc extinguishing unit are all arranged in the shell 2, and one end of the outer side of the conductive connecting component 1 extends to the outside of the shell 2;
The connecting plate 11 is sleeved on the conductive connecting assembly 1, the connecting plate 11 is in sliding fit with the inner wall of the shell 2, a plurality of spring telescopic rods 12 are arranged on the surface, close to the outer side, of the connecting plate 11, the other ends of the spring telescopic rods 12 are connected with the inner wall of the shell 2, after the two conductive connecting assemblies 1 are moved outwards and disconnected through the arrangement of the connecting plate 11 and the spring telescopic rods 12, the spring telescopic rods 12 are compressed, when the two conductive connecting assemblies 1 are required to be connected, the two conductive connecting assemblies 1 can be pushed to be connected quickly by means of the restoring elasticity of the spring telescopic rods 12, meanwhile, the conductive connecting assemblies 1 are guaranteed to be kept closely attached all the time, and stable electrical connection is maintained.
The triggering mechanism comprises a mounting frame 3, an insulating sheet 4 is arranged on the inner side of the mounting frame 3, an electromagnetic assembly is arranged below the mounting frame 3, the insulating sheet 4 is driven to vertically move by the electromagnetic assembly, the insulating sheet 4 separates the two conductive connecting assemblies 1, and when a circuit exceeds a preset value, the insulating sheet 4 is used for disconnecting the two conductive connecting assemblies 1.
The arc extinguishing unit comprises two groups of arc extinguishing grids 5, the two groups of arc extinguishing grids 5 are respectively arranged on two sides of the insulating sheet 4, the arrangement of the arc extinguishing grids 5 can limit electric arcs and help the electric arcs to extinguish rapidly when the two conductive connecting assemblies 1 are disconnected, burning loss of the electric arcs to the contacts of the conductive connecting assemblies 1 is avoided or reduced, the service lives of the contacts are prolonged, and normal operation of electrical equipment is guaranteed.
In the application, the electromagnetic assembly comprises a first electromagnet 6 and a second electromagnet 7 which are oppositely arranged, wherein the first electromagnet 6 is arranged at the bottom of the mounting frame 3, and the second electromagnet 7 is arranged at the bottom of the shell 2. When two conductive connection components 1 are required to be disconnected, the first electromagnet 6 and the second electromagnet 7 are respectively electrified to generate opposite magnetism, so that attraction force is generated between the two first electromagnets 6 and the second electromagnet 7, the first electromagnet 6 can move downwards because the second electromagnet 7 is fixed, the first electromagnet 6 is fixed on the mounting frame 3, the first electromagnet 6 can drive the mounting frame 3 to move downwards, and accordingly the insulating sheet 4 and the arc-extinguishing grid 5 are driven to move downwards, and the insulating sheet 4 and the arc-extinguishing grid 5 are inserted between the two conductive connection components 1 to realize disconnection of a circuit. When two conductive connection assemblies 1 are required to be connected, the magnetism of the second electromagnet 7 is changed to be the same as that of the first electromagnet 6, so that repulsive force is generated, the mounting frame 3 is moved upwards, and the two conductive connection assemblies 1 are restored to be connected.
In the application, the lower end of the mounting frame 3 is provided with the limiting frame 8, the upper end of the limiting frame 8 is positioned above the first electromagnet 6, and the first electromagnet 6 and the second electromagnet 7 are both positioned between the inner walls of the two sides of the limiting frame 8. The limiting frame 8 limits the movement track of the first electromagnet 6.
In one possible embodiment, springs are arranged at the bottoms of two sides of the mounting frame 3, the springs are connected with the bottom of the shell 2, and the mounting frame 3 can be quickly moved upwards by means of the restoring elasticity of the springs.
In the application, one end of the inner side of each of the two conductive connecting components 1 is sleeved with the conical guide sleeve 9, one end of the inclined plane of each of the two conical guide sleeves 9 is arranged oppositely, and the insulating sheet 4 is convenient to insert between the two conductive connecting components 1 when moving downwards through the arrangement of the conical guide sleeves 9.
In the application, the two sides of the mounting frame 3 are respectively provided with the limit rail 10, the mounting frame 3 is in sliding fit with the limit rail 10, the limit rail 10 is arranged on the inner wall of the shell 2, and the arrangement of the limit rail 10 limits the moving track of the mounting frame 3.
In one possible embodiment, the method further comprises:
The automatic recovery module is electrically connected with the intelligent processing module, and is used for automatically resetting the rapid execution module to a standby state when fault clearing is detected and the real-time current is less than or equal to 0.8 time rated current lasts for 5 minutes, wherein the reset condition of the automatic recovery module also comprises that the ambient temperature and humidity are returned to a normal working interval (the temperature is-40 ℃ to +60 ℃, the humidity is less than or equal to 95% RH and no condensation exists), so that error recovery under a fault or severe environment is avoided.
And the man-machine interaction interface integrates an OLED display screen and keys, and supports the functions of local threshold configuration, historical fault inquiry and manual test.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A self-adaptive overload protection fast fusing device, comprising:
The multi-dimensional monitoring module is used for collecting circuit current, environment temperature and humidity and equipment operation parameters in real time;
the intelligent processing module is electrically connected with the multi-dimensional monitoring module, is internally provided with a self-adaptive algorithm unit, and dynamically calculates and adjusts a multi-level fusing threshold value based on real-time acquired data;
The rapid execution module is electrically connected with the intelligent processing module and comprises a composite fusing structure and an arc extinguishing unit, wherein the composite fusing structure executes overload early warning, classified fusing or complete cutting action according to the multistage fusing threshold value;
and the communication interaction module is in communication connection with the intelligent processing module and is used for realizing remote monitoring of the device state, remote configuration of the threshold value parameters and uploading of fault information.
2. The adaptive overload protection fast acting fuse device of claim 1, wherein said multi-dimensional monitoring module comprises:
The Hall current sensor is used for collecting real-time current signals of the circuit;
the temperature and humidity sensor is used for acquiring temperature and humidity data of the environment where the device is positioned;
the voltage sensor is used for monitoring the input and output voltage of the circuit;
The sampling frequency of the multi-dimensional monitoring module is more than or equal to 10kHz, and high-frequency updating of real-time data is ensured.
3. The device for adaptive overload protection as claimed in claim 1, wherein the intelligent processing module comprises:
the microprocessor unit adopts an ARM Cortex-M4 and above architecture and integrates a Digital Signal Processing (DSP) function;
the adaptive algorithm unit includes:
the environment compensation algorithm module dynamically corrects the initial fusing threshold according to the temperature and humidity data, and the correction formula is as follows:
T' =t 0×(1+k1ΔT+k2 Δh), where T 0 is an initial threshold, Δt is a temperature offset, Δh is a humidity offset, and k 1~k2 is an environmental impact coefficient;
And the multi-stage fusing strategy module is used for presetting at least three stages of fusing thresholds, wherein each stage of thresholds meet T early warning threshold ＜T Current limiting threshold ＜T Cut-off threshold and match different action response times.
4. The device for adaptive overload protection as claimed in claim 1, wherein the composite fuse structure of the fast executing module comprises:
the two conductive connecting assemblies (1) are oppositely arranged, and the two conductive connecting assemblies (1) are electrically connected to realize circuit conduction;
The triggering mechanism is electrically connected with the intelligent processing module and drives the two conductive connecting assemblies (1) to be rapidly separated after receiving the fusing instruction;
the arc extinguishing units are arranged on two sides of the trigger mechanism.
5. The self-adaptive overload protection fast acting fuse device according to claim 4, further comprising a housing (2), wherein the conductive connecting component (1), the triggering mechanism and the arc extinguishing unit are all arranged in the housing (2), and one end of the outer side of the conductive connecting component (1) extends to the outside of the housing (2);
the conductive connecting assembly (1) is sleeved with a connecting plate (11), the connecting plate (11) is in sliding fit with the inner wall of the shell (2), a plurality of spring telescopic rods (12) are arranged on the surface, close to the outer side, of the connecting plate (11), and the other ends of the spring telescopic rods (12) are connected with the inner wall of the shell (2);
The triggering mechanism comprises a mounting frame (3), an insulating sheet (4) is arranged on the inner side of the mounting frame (3), and an electromagnetic assembly is arranged below the mounting frame (3);
the arc-extinguishing unit comprises two groups of arc-extinguishing grids (5), and the two groups of arc-extinguishing grids (5) are respectively arranged on two sides of the insulating sheet (4).
6. The device for self-adaptive overload protection according to claim 5, wherein the electromagnetic assembly comprises a first electromagnet (6) and a second electromagnet (7) which are oppositely arranged, the first electromagnet (6) is arranged at the bottom of the mounting frame (3), and the second electromagnet (7) is arranged at the bottom of the shell (2).
7. The device for self-adaptive overload protection according to claim 6, wherein a limiting frame (8) is arranged at the lower end of the mounting frame (3), the upper end of the limiting frame (8) is located above the first electromagnet (6), and the first electromagnet (6) and the second electromagnet (7) are located between inner walls of two sides of the limiting frame (8).
8. The self-adaptive overload protection rapid fusing device according to claim 5, wherein the conical guide sleeves (9) are sleeved at one end of the inner side of the two conductive connecting assemblies (1), and one ends of inclined planes of the two conical guide sleeves (9) are oppositely arranged.
9. The device for self-adaptive overload protection according to claim 5, wherein limiting rails (10) are arranged on two sides of the mounting frame (3), the mounting frame (3) is in sliding fit with the limiting rails (10), and the limiting rails (10) are arranged on the inner wall of the shell (2).
10. The adaptive overload protection fast acting fuse apparatus of claim 1 further comprising:
The self-recovery module is electrically connected with the intelligent processing module, and automatically resets the rapid execution module to a standby state when fault clearance is detected and the real-time current is less than or equal to 0.8 time of rated current for 5 minutes;
And the man-machine interaction interface integrates an OLED display screen and keys, and supports the functions of local threshold configuration, historical fault inquiry and manual test.
CN202510679844.1A 2025-05-26 2025-05-26 A fast-blow fuse device with adaptive overload protection Pending CN120473937A (en)

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CN202510679844.1A CN120473937A (en) 2025-05-26 2025-05-26 A fast-blow fuse device with adaptive overload protection

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Application Number Priority Date Filing Date Title
CN202510679844.1A CN120473937A (en) 2025-05-26 2025-05-26 A fast-blow fuse device with adaptive overload protection

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CN120473937A true CN120473937A (en) 2025-08-12

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CN202510679844.1A Pending CN120473937A (en) 2025-05-26 2025-05-26 A fast-blow fuse device with adaptive overload protection

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120998754A (en) * 2025-10-22 2025-11-21 杭州超熔科技有限公司 A remotely monitorable fuse
CN121049705A (en) * 2025-10-29 2025-12-02 杭州飞仕得科技股份有限公司 Power chip measurement circuit and measurement fixture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120998754A (en) * 2025-10-22 2025-11-21 杭州超熔科技有限公司 A remotely monitorable fuse
CN121049705A (en) * 2025-10-29 2025-12-02 杭州飞仕得科技股份有限公司 Power chip measurement circuit and measurement fixture

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