CN115940616B - Automatic overheat protection method and device for power adapter and intelligent power adapter - Google Patents
Automatic overheat protection method and device for power adapter and intelligent power adapter Download PDFInfo
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- CN115940616B CN115940616B CN202310230032.XA CN202310230032A CN115940616B CN 115940616 B CN115940616 B CN 115940616B CN 202310230032 A CN202310230032 A CN 202310230032A CN 115940616 B CN115940616 B CN 115940616B
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Abstract
The application provides an automatic overheat protection method and device for a power adapter and an intelligent power adapter, wherein whether an output line of the power adapter is abnormal or not is analyzed according to the size relation between an output parameter and a configuration parameter to be used as a pre-condition for temperature judgment; analyzing the temperature overload condition of the power adapter according to the size relation between the working temperature and the cloud temperature, and determining the working mode of the power adapter by combining the analysis information in the output mode; and determining the starting range or starting time of the heat conduction assembly according to the working mode, and if the heat conduction and cooling effect of the heat conduction assembly is not obvious, adopting a further overheat protection scheme according to the situation after the temperature detection result is evaluated so as to ensure that the cooling index is qualified, and finally realizing the purpose of automatic overheat protection.
Description
Technical Field
The application belongs to the technical field of intelligent electronic equipment, and particularly relates to an automatic overheat protection method and device for a power adapter and the intelligent power adapter.
Background
As urban fast-paced life advances, people have a rapid increase in power demand on electronic devices, and at the same time, it is more desirable to reduce the time and effort spent on charging and discharging the electronic devices. However, the power adapter can have an excessively high temperature during high-load use or long-time hosting, and the power adapter can damage the equipment per se when the operating temperature exceeds the normal operating temperature range, and can also cause safety accidents. Therefore, how to realize the automatic overheat protection of the power adapter system is a technical problem that the technician needs to overcome.
Disclosure of Invention
In view of the above, the application provides an automatic overheat protection method and device for a power adapter and an intelligent power adapter, which can automatically adjust the working temperature of the power adapter and solve the problems of overhigh temperature and shortened service life of the power adapter in use.
The specific technical scheme of the application is as follows:
the first aspect of the present application provides a method for automatic overheat protection of a power adapter, including the following steps:
respectively obtaining output parameters and configuration parameters of an output end of a power adapter, and judging an output mode of the power adapter according to the output parameters and the configuration parameters;
respectively acquiring the working temperature and the cloud temperature of the power adapter, and determining the working mode of the power adapter according to the working temperature, the cloud temperature and the output mode;
and starting the heat conduction assembly of the power adapter according to the working mode, monitoring a cooling index, and adjusting the heat output of the modulation circuit according to the working mode if the cooling index is unqualified.
Further, the power adapter is configured with a first transformed dc and a second transformed dc, the configuration parameters include a first transformed dc configuration parameter corresponding to the first transformed dc and a second transformed dc configuration parameter corresponding to the second transformed dc, the output parameters include a first transformed dc output parameter corresponding to the first transformed dc and a second transformed dc output parameter corresponding to the second transformed dc, and the output mode of the power adapter is determined according to the output parameters and the configuration parameters specifically:
judging whether the first transformed direct current of the power adapter is in a normal output mode or not according to the comparison value of the first transformed direct current configuration parameter and the first transformed direct current output parameter;
and judging whether the second transformation direct current of the power adapter is in a normal output mode according to the comparison value of the second transformation direct current configuration parameter and the second transformation direct current output parameter.
Further, the method further comprises the following steps:
if the output mode of the power adapter is an abnormal output mode, acquiring the number of the transformation direct current lines with abnormal output, and selecting to send a control command according to the number of the transformation direct current lines; wherein:
and when the number of the voltage transformation direct current lines is smaller than the total number of the lines, sending an error control command to close the voltage transformation direct current lines where abnormal output is located, and when the number of the voltage transformation direct current lines is equal to the total number of the lines, sending a warning control command to close the total power supply of the power adapter.
Further, determining the working mode of the power adapter according to the working temperature, the cloud temperature and the output mode specifically includes:
judging the temperature mode of the power adapter according to the percentage value that the working temperature exceeds the cloud temperature;
acquiring a comparison value in the output mode and a percentage value in the temperature mode;
and determining the working mode of the power adapter according to the value relation between the comparison value and the percentage value.
Further, the method further comprises the following steps:
if the temperature mode of the power adapter is an abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a first limit value;
acquiring the working temperature of the power adapter again and determining a temperature mode again;
and if the redetermined temperature mode is the abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a second limit value.
Further, the heat conducting component for starting the power adapter according to the working mode specifically comprises:
determining an acquisition range of the distance parameter of the power adapter according to the working mode;
if no response information is received within the acquisition range, acquiring the contact surface position where the response information is not received, and switching on the heat conduction assembly where the contact surface position is located to reduce the working temperature of the power adapter.
Further, the heat conducting component for starting the power adapter according to the working mode specifically comprises:
and determining the working area and the working time length of the heat conduction assembly according to the working mode.
Further, the adjusting the heat output of the modulation circuit according to the working mode specifically includes:
and adjusting the output frequency of the modulation circuit and the operation time length for operating the output frequency according to the working mode.
A second aspect of the present application provides an automatic overheat protection device for a power adapter, the automatic overheat protection device for the power adapter comprising:
the output detection module is used for respectively acquiring output parameters and configuration parameters of the output end of the power adapter and judging the output mode of the power adapter according to the output parameters and the configuration parameters;
the temperature detection module is used for respectively acquiring the working temperature and the cloud temperature of the power adapter and determining the working mode of the power adapter according to the working temperature, the cloud temperature and the output mode;
and the overheat protection module is used for starting the heat conduction assembly of the power adapter according to the working mode and monitoring a cooling index, and if the cooling index is unqualified, the overheat protection module is used for adjusting the heat output of the modulation circuit according to the working mode.
A third aspect of the present application provides an intelligent power adapter, where the intelligent power adapter implements steps in the automatic overheat protection method of the power adapter, or includes modules in the automatic overheat protection device of the power adapter.
In summary, the present application provides a method and an apparatus for automatic overheat protection of a power adapter, and an intelligent power adapter, which analyze whether an output line of the power adapter is abnormal according to a magnitude relation between an output parameter and a configuration parameter, as a precondition for temperature judgment; analyzing the temperature overload condition of the power adapter according to the size relation between the working temperature and the cloud temperature, and determining the working mode of the power adapter by combining the analysis information in the output mode; and determining the starting range or starting time of the heat conduction assembly according to the working mode, and if the heat conduction and cooling effect of the heat conduction assembly is not obvious, adopting a further overheat protection scheme according to the situation after the temperature detection result is evaluated so as to ensure that the cooling index is qualified, and finally realizing the purpose of automatic overheat protection.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a flow chart of a method of automatic overheat protection for a power adapter of the present application;
fig. 2 is a block diagram of an automatic overheat protection device for a power adapter of the present application.
Detailed Description
For the purposes of making the objects, features, and advantages of the present application more apparent and understandable, the technical solutions in the embodiments of the present application are clearly and completely described, and it is apparent that the embodiments described below are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, fig. 1 is a flowchart of an automatic overheat protection method for a power adapter of the present application.
The embodiment of the application provides an automatic overheat protection method for a power adapter, which comprises the following steps:
s1: respectively obtaining output parameters and configuration parameters of an output end of a power adapter, and judging an output mode of the power adapter according to the output parameters and the configuration parameters;
s2: respectively acquiring the working temperature and the cloud temperature of the power adapter, and determining the working mode of the power adapter according to the working temperature, the cloud temperature and the output mode;
s3: and starting the heat conduction assembly of the power adapter according to the working mode, monitoring a cooling index, and adjusting the heat output of the modulation circuit according to the working mode if the cooling index is unqualified.
As an embodiment, the output parameter in S1 is a real-time measurement parameter of voltage, current, etc. of the power adapter, and the configuration parameter is determined by the hardware configuration of the power adapter, for example, the configuration parameter may include any one or more of rated output voltage, rated output current, etc. And analyzing whether the output line of the power adapter is abnormal or not according to the magnitude relation between the output parameters and the configuration parameters, and taking the abnormal output line as a pre-condition for temperature judgment. And when the output mode is judged to be normal, entering a temperature judgment process, and when the output mode is abnormal, sending a prompt message to treat the abnormality.
The working temperature in S2 is the real-time temperature of the power adapter core component in operation, and the cloud temperature can be the historical real-time temperature or the maximum bearing temperature. And analyzing the temperature overload condition of the power adapter according to the magnitude relation between the working temperature and the cloud temperature, determining the working mode of the power adapter by combining the analysis information in the output mode, and automatically matching to reduce the overheat protection method protection equipment of the voltage stabilizing output according to the working mode. The temperature detection result can be used as a basis for judging the working mode, and can also be used as a condition for judging whether the overheat protection method is successful or not.
And S3, the heat conduction component is arranged on the outer wall of the power adapter and can be made of a metal material with strong heat conduction performance and used for emitting high temperature when the power adapter operates. The output overload condition and the temperature overload condition of the power adapter can be reflected according to the working mode, and then the starting range or starting time of the heat conduction assembly is determined. If the heat conduction cooling effect of the heat conduction component is not obvious, a further overheat protection scheme can be adopted according to the situation after the temperature detection result is evaluated, for example, the energy consumption power of the modulation circuit is adjusted, so that the cooling index is ensured to be qualified, and finally, the purpose of automatic overheat protection is realized.
According to an embodiment of the present application, the power adapter is configured with a first transforming dc and a second transforming dc, the configuration parameters include a first transforming dc configuration parameter corresponding to the first transforming dc and a second transforming dc configuration parameter corresponding to the second transforming dc, the output parameters include a first transforming dc output parameter corresponding to the first transforming dc and a second transforming dc output parameter corresponding to the second transforming dc, and the output mode of the power adapter is determined according to the output parameters and the configuration parameters:
judging whether the first transformed direct current of the power adapter is in a normal output mode or not according to the comparison value of the first transformed direct current configuration parameter and the first transformed direct current output parameter;
and judging whether the second transformation direct current of the power adapter is in a normal output mode according to the comparison value of the second transformation direct current configuration parameter and the second transformation direct current output parameter.
As an embodiment, after the power adapter is powered on normally, the power adapter starts to judge whether the output port is connected normally, and the power adapter can acquire output parameters through the current-voltage sensor and acquire configuration parameters from the cloud. The first transformation direct current configuration parameter and the second transformation direct current configuration parameter are current and voltage values when the power adapter configures the first transformation direct current circuit and the second transformation direct current circuit respectively. The power adapter can be divided into two lines to convert an input alternating current circuit into a voltage stabilizing circuit through different transformers and then output a direct current circuit to supply power to equipment. Therefore, whether the voltage transformation direct current is in a normal output mode or not is judged in sequence, on one hand, the circuit where the overheat risk point of the power adapter is located can be found out accurately, the temperature detection result is more accurate, and on the other hand, the voltage transformation direct current detection method can be used for fault detection among different circuits. When the power adapter detects that output exists, the power adapter is connected with the cloud to acquire a first transformation direct current configuration parameter to obtain constant voltage and current. The power adapter switches the first transformed direct current to output, and the detected direct current output obtains the output voltage and current by using a current-voltage sensor to obtain the first transformed direct current output parameter within 1 s. Dividing the output voltage and current with the constant voltage and current respectively to generate percentage values, and judging that the first voltage transformation direct current is normally output when the percentage values are more than or equal to 70% and less than or equal to 130%. And then, the power adapter switches the second transformed direct current to output, and similarly, the output voltage and the output current are divided by the constant voltage and the constant current respectively to generate percentage values, and the second transformed direct current is judged to be normally output when the percentage values are more than or equal to 70% and less than or equal to 130%.
According to an embodiment of the present application, further comprising:
if the output mode of the power adapter is an abnormal output mode, acquiring the number of the transformation direct current lines with abnormal output, and selecting to send a control command according to the number of the transformation direct current lines; wherein:
and when the number of the voltage transformation direct current lines is smaller than the total number of the lines, sending an error control command to close the voltage transformation direct current lines where abnormal output is located, and when the number of the voltage transformation direct current lines is equal to the total number of the lines, sending a warning control command to close the total power supply of the power adapter.
As an embodiment, the power adapter counts the number of abnormal output lines, if the voltage transformation direct current line is abnormal, the voltage transformation direct current line can be partially closed to prevent short circuit or energy-saving consumption, and meanwhile, an error control command is sent to remind a user of paying attention to the fault condition. If all the voltage transformation direct current lines are abnormal, the power adapter main power supply is required to be turned off, and a user is warned to timely handle the faults so as to avoid causing safety accidents. For example, assume that there are two voltage-transformation adjusting lines in the power adapter, where the first voltage-transformation direct current has abnormal output, that is, the percentage value generated by dividing the output voltage and the current with the constant voltage and the current respectively is less than 70% or greater than 130%, the power adapter uploads the error to the cloud and closes the first voltage-transformation direct current line for use, and the cloud returns to the console to remind the device that the first voltage-transformation direct current has a problem and that the first voltage-transformation direct current line needs to be replaced. When abnormal output exists in the first voltage transformation direct current circuit and the second voltage transformation direct current circuit, the fact that the voltage transformation circuit of the power adapter cannot be used is judged, the intelligent alarm system is started to send an alarm 3s command, the error is sent to the cloud, the cloud returns to the control console, and meanwhile power connection of the power adapter is closed.
According to the embodiment of the application, the working mode of the power adapter is determined according to the working temperature, the cloud temperature and the output mode, and is specifically as follows:
judging the temperature mode of the power adapter according to the percentage value that the working temperature exceeds the cloud temperature;
acquiring a comparison value in the output mode and a percentage value in the temperature mode;
and determining the working mode of the power adapter according to the value relation between the comparison value and the percentage value.
As an embodiment, the temperature overload condition of the power adapter is determined according to the working temperature and the cloud temperature, and the working mode is analyzed in combination with the output overload condition, wherein the comparison value of the output mode refers to the comparison value of the first transformed dc configuration parameter and the first transformed dc output parameter, or the comparison value of the second transformed dc configuration parameter and the second transformed dc output parameter. The method can be divided into a low-strength high-temperature mode, a medium-strength high-temperature mode and a high-strength high-temperature mode, and the working mode is used as the basis for selecting an overheat protection scheme. After the output environment of the voltage transformation direct current circuit is ensured to be normal, the power adapter starts to acquire temperature data through the temperature sensor, and the situation that the temperature is too high to cause irreversible rotation is prevented, so that the power adapter or electric equipment is damaged. The power adapter starts an internal temperature sensor to detect the working temperature in the current 5s and average the working temperature, meanwhile, the model of the power adapter is obtained, and the normal working temperature of cloud equipment of the corresponding model is obtained to obtain the cloud temperature. Dividing the working temperature by the cloud temperature to obtain a percentage value, wherein the percentage value is more than 7% and less than or equal to 15%, and determining a low-intensity high-temperature mode when the comparison value in the output mode is less than 90%; the percentage value is more than 15% and less than or equal to 26%, and when the comparison value in the output mode is more than 90% and less than 100%, the mode is judged to be a medium-strength high-temperature mode; and when the percentage value is more than 26%, and the comparison value in the output mode is more than 100% and less than 130%, judging that the high-intensity high-temperature mode is adopted.
According to an embodiment of the present application, further comprising:
if the temperature mode of the power adapter is an abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a first limit value;
acquiring the working temperature of the power adapter again and determining a temperature mode again;
and if the redetermined temperature mode is the abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a second limit value.
As an embodiment, if the temperature detection result shows that the temperature exceeds the standard, i.e. the percentage value in the temperature mode exceeds 36%, in order to control the temperature to continuously rise while ensuring the normal operation of the voltage-transformation direct-current circuit, the output flow rate of the voltage-transformation voltage-stabilizing circuit can be limited in advance, and the first limit value can be set to 50% of the initial output power. After 3min, the power adapter can start the temperature detection module to obtain a temperature detection result, and if the percentage value is still in a temperature exceeding state, a second limit value with smaller ratio, such as 40% of the initial output power, can be set. And after 3min, starting the temperature detection module again, and successfully adjusting the power adapter when the percentage value is smaller than 36%.
According to the embodiment of the application, the heat conduction assembly for starting the power adapter according to the working mode is specifically:
determining an acquisition range of the distance parameter of the power adapter according to the working mode;
if no response information is received within the acquisition range, acquiring the contact surface position where the response information is not received, and switching on the heat conduction assembly where the contact surface position is located to reduce the working temperature of the power adapter.
As one example, when the operation mode indicates that the high temperature operation mode exists, the infrared sensor is activated to detect the blocking distance of the A, B side (front and back side) of the power adapter. If the working mode is a low-intensity high-temperature mode, when the distance parameter larger than 3cm does not exist, the power adapter is indicated to be shielded, the intelligent alarm system is started to send out 3-sound alarms and transmit information back to the cloud, and the cloud returns information to the electric equipment to remind a user to timely remove a shielding object; when more than 3cm is present, the contact surface position is acquired. If the working mode is a medium-intensity high-temperature mode, when the distance parameter larger than 5cm does not exist, the power adapter is indicated to be shielded, the intelligent alarm system is started to send out 3-sound alarms and transmit information back to the cloud, and the cloud returns information to the electric equipment to remind a user to timely remove a shielding object; when more than 5cm is present, the contact surface position is acquired. If the working mode is a high-intensity high-temperature mode, when the distance parameter larger than 7cm does not exist, the power adapter is indicated to be shielded, the intelligent alarm system is started to send out 3-sound alarms and transmit information back to the cloud, and the cloud returns information to the electric equipment to remind a user to timely remove a shielding object; when more than 7cm is present, the contact surface position is acquired.
According to the embodiment of the application, the heat conduction assembly for starting the power adapter according to the working mode is specifically:
and determining the working area and the working time length of the heat conduction assembly according to the working mode.
As an embodiment, assuming that the surface a of the power adapter is a contact surface which does not receive response information, if the working mode is a low-intensity high-temperature mode, 50% of the total area of the heat conducting fins of the surface a is connected inside the power adapter, and starting the temperature detection module to detect the temperature after 3min until the percentage value of the temperature detection result is reduced to be within 5%; if the working mode is a medium-strength high-temperature mode, the power adapter is internally connected with 80% of the total area of the A-side heat conducting fins, and a temperature detection module is started to detect the temperature after 2 min; if the working mode is a low-intensity high-temperature mode, the power adapter is internally connected with 100% of the total area of the A-side heat conducting fins, and the temperature detection module is started to detect the temperature after 1 min.
According to the embodiment of the application, the heat output of the modulation circuit is adjusted according to the working mode specifically:
and adjusting the output frequency of the modulation circuit and the operation time length for operating the output frequency according to the working mode.
As an example, if the temperature cannot be reduced effectively by connecting the heat conducting fins, the output energy consumption of the power adapter needs to be reduced properly from the source to control the heat output, wherein the effect of performing the voltage transformation direct current treatment by intervening the modulation circuit after the input of the alternating current circuit is more remarkable. If the working mode is a low-intensity high-temperature mode, the power adapter reduces the frequency of the modulation circuit by 30%, and starts the temperature detection module after 5min to evaluate whether the cooling index meets the requirement, if not, the step is repeated until the cooling adjustment is completed; if the working mode is a medium-intensity high-temperature mode, the power adapter reduces the frequency of the modulation circuit by 40%, and after 3min, the temperature detection module is started to evaluate whether the cooling index meets the requirement; if the working mode is a high-intensity high-temperature mode, the power adapter reduces the frequency of the modulation circuit by 50%, and after 2min, the temperature detection module is started to evaluate whether the cooling index meets the requirement.
Referring to fig. 2, fig. 2 is a block diagram of an automatic overheat protection device for a power adapter of the present application.
The embodiment of the application also provides an automatic overheat protection device for a power adapter, which comprises:
the output detection module 1 is used for respectively obtaining output parameters and configuration parameters of the output end of the power adapter and judging the output mode of the power adapter according to the output parameters and the configuration parameters;
the temperature detection module 2 is used for respectively obtaining the working temperature and the cloud temperature of the power adapter and determining the working mode of the power adapter according to the working temperature, the cloud temperature and the output mode;
and the overheat protection module 3 is used for starting the heat conduction assembly of the power adapter according to the working mode and monitoring a cooling index, and if the cooling index is not qualified, the overheat protection module is used for adjusting the heat output of the modulation circuit according to the working mode.
According to an embodiment of the present application, the power adapter is configured with a first transformed dc and a second transformed dc, the configuration parameters include a first transformed dc configuration parameter corresponding to the first transformed dc and a second transformed dc configuration parameter corresponding to the second transformed dc, the output parameters include a first transformed dc output parameter corresponding to the first transformed dc and a second transformed dc output parameter corresponding to the second transformed dc, and the output detection module is specifically configured to:
judging whether the first transformed direct current of the power adapter is in a normal output mode or not according to the comparison value of the first transformed direct current configuration parameter and the first transformed direct current output parameter;
and judging whether the second transformation direct current of the power adapter is in a normal output mode according to the comparison value of the second transformation direct current configuration parameter and the second transformation direct current output parameter.
According to an embodiment of the present application, the output detection module is further configured to:
if the output mode of the power adapter is an abnormal output mode, acquiring the number of the transformation direct current lines with abnormal output, and selecting to send a control command according to the number of the transformation direct current lines; wherein:
and when the number of the voltage transformation direct current lines is smaller than the total number of the lines, sending an error control command to close the voltage transformation direct current lines where abnormal output is located, and when the number of the voltage transformation direct current lines is equal to the total number of the lines, sending a warning control command to close the total power supply of the power adapter.
According to the embodiment of the application, the temperature detection module is specifically configured to:
judging the temperature mode of the power adapter according to the percentage value that the working temperature exceeds the cloud temperature;
acquiring a comparison value in the output mode and a percentage value in the temperature mode;
and determining the working mode of the power adapter according to the value relation between the comparison value and the percentage value.
According to an embodiment of the present application, the temperature detection module is further configured to:
if the temperature mode of the power adapter is an abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a first limit value;
acquiring the working temperature of the power adapter again and determining a temperature mode again;
and if the redetermined temperature mode is the abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a second limit value.
According to the embodiment of the application, the overheat protection module is specifically configured to:
determining an acquisition range of the distance parameter of the power adapter according to the working mode;
if no response information is received within the acquisition range, acquiring the contact surface position where the response information is not received, and switching on the heat conduction assembly where the contact surface position is located to reduce the working temperature of the power adapter.
According to the embodiment of the application, the overheat protection module is specifically configured to:
and determining the working area and the working time length of the heat conduction assembly according to the working mode.
According to the embodiment of the application, the overheat protection module is specifically configured to:
and adjusting the output frequency of the modulation circuit and the operation time length for operating the output frequency according to the working mode.
The embodiment of the application also provides an intelligent power adapter, which realizes each step in the automatic overheat protection method of the power adapter or comprises each module in the automatic overheat protection device of the power adapter.
The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (7)
1. An automatic overheat protection method for a power adapter is characterized by comprising the following steps:
respectively obtaining output parameters and configuration parameters of an output end of a power adapter, and judging an output mode of the power adapter according to the output parameters and the configuration parameters;
the working temperature and the cloud temperature of the power adapter are respectively obtained, the working mode of the power adapter is determined according to the working temperature, the cloud temperature and the output mode, wherein the temperature mode of the power adapter is judged according to the percentage value of the working temperature exceeding the cloud temperature, the comparison value in the output mode and the percentage value in the temperature mode are obtained, and the working mode of the power adapter is determined according to the value relation of the comparison value and the percentage value;
starting a heat conduction assembly of the power adapter according to the working mode, wherein the working area and the working time length of the heat conduction assembly are determined according to the working mode;
monitoring a cooling index, if the cooling index is not qualified, adjusting heat output of a modulation circuit according to the working mode, wherein an acquisition range of a distance parameter of the power adapter is determined according to the working mode, the distance parameter is a blocked distance between the front side and the back side of the power adapter, if no response information is received in the acquisition range, a contact surface position where the response information is not received is acquired, the contact surface is the front side or the back side of the power adapter, and a heat conduction assembly where the contact surface position is positioned is connected to reduce the working temperature of the power adapter.
2. The automatic overheat protection method of the power adapter of claim 1, wherein the power adapter is configured with a first transformed dc and a second transformed dc, the configuration parameters include a first transformed dc configuration parameter corresponding to the first transformed dc and a second transformed dc configuration parameter corresponding to the second transformed dc, the output parameters include a first transformed dc output parameter corresponding to the first transformed dc and a second transformed dc output parameter corresponding to the second transformed dc, and the output mode of the power adapter is determined according to the output parameters and the configuration parameters specifically:
judging whether the first transformed direct current of the power adapter is in a normal output mode or not according to the comparison value of the first transformed direct current configuration parameter and the first transformed direct current output parameter;
and judging whether the second transformation direct current of the power adapter is in a normal output mode according to the comparison value of the second transformation direct current configuration parameter and the second transformation direct current output parameter.
3. The method for automatic overheat protection of a power adapter of claim 1, further comprising:
if the output mode of the power adapter is an abnormal output mode, acquiring the number of the transformation direct current lines with abnormal output, and selecting to send a control command according to the number of the transformation direct current lines; wherein:
and when the number of the voltage transformation direct current lines is smaller than the total number of the lines, sending an error control command to close the voltage transformation direct current lines where abnormal output is located, and when the number of the voltage transformation direct current lines is equal to the total number of the lines, sending a warning control command to close the total power supply of the power adapter.
4. The method for automatic overheat protection of a power adapter of claim 1, further comprising:
if the temperature mode of the power adapter is an abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a first limit value;
acquiring the working temperature of the power adapter again and determining a temperature mode again;
and if the redetermined temperature mode is the abnormal temperature mode, sending a control command to adjust the output power of the voltage stabilizing circuit to be a second limit value.
5. The method for automatic overheat protection of a power adapter of claim 1, wherein the adjusting the heat output of the modulation circuit according to the operation mode is specifically:
and adjusting the output frequency of the modulation circuit and the operation time length for operating the output frequency according to the working mode.
6. An automatic overheat protection device for a power adapter, comprising:
the output detection module is used for respectively acquiring output parameters and configuration parameters of the output end of the power adapter and judging the output mode of the power adapter according to the output parameters and the configuration parameters;
the temperature detection module is used for respectively obtaining the working temperature and the cloud temperature of the power adapter, determining the working mode of the power adapter according to the working temperature, the cloud temperature and the output mode, judging the temperature mode of the power adapter according to the percentage value of the working temperature exceeding the cloud temperature, obtaining the comparison value in the output mode and the percentage value in the temperature mode, and determining the working mode of the power adapter according to the value relationship between the comparison value and the percentage value;
the overheat protection module is used for starting the heat conduction assembly of the power adapter according to the working mode, wherein the working area and the working time length of the heat conduction assembly are determined according to the working mode;
and the temperature reduction indicator is also used for monitoring the temperature reduction indicator, if the temperature reduction indicator is unqualified, the heat output of the modulation circuit is regulated according to the working mode, wherein the acquisition range of the distance parameter of the power adapter is determined according to the working mode, the distance parameter is the blocking distance between the front side and the back side of the power adapter, if no response information is received in the acquisition range, the position of a contact surface which does not receive the response information is acquired, the contact surface is the front side or the back side of the power adapter, and the heat conduction component where the position of the contact surface is connected is used for reducing the working temperature of the power adapter.
7. An intelligent power adapter, characterized in that the intelligent power adapter implements the steps in the automatic overheat protection method for the power adapter according to any one of claims 1 to 5, or comprises the modules in the automatic overheat protection device for the power adapter according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310230032.XA CN115940616B (en) | 2023-03-10 | 2023-03-10 | Automatic overheat protection method and device for power adapter and intelligent power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310230032.XA CN115940616B (en) | 2023-03-10 | 2023-03-10 | Automatic overheat protection method and device for power adapter and intelligent power adapter |
Publications (2)
| Publication Number | Publication Date |
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| CN115940616A CN115940616A (en) | 2023-04-07 |
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| CN116516456B (en) * | 2023-07-05 | 2023-09-12 | 深圳中宝新材科技有限公司 | Method for automatically overvoltage protection equipment of intelligent electroplating line production heating system |
| CN117310348B (en) * | 2023-11-23 | 2024-03-12 | 东莞市时实电子有限公司 | Power adapter fault real-time monitoring method and system |
| CN117578359A (en) * | 2024-01-11 | 2024-02-20 | 深圳市新源鑫电器有限公司 | Automatic over-temperature and over-voltage protection device and method for power adapter |
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