Power supply device and control method therefor, and computer-readable storage medium

Abstract

A power supply device and a control method therefor, and a computer-readable storage medium. The power supply device is provided with a control chip and at least two power supply ports, at least some of which are connected to the control chip of the power supply device by means of retractable cables. The method comprises: in response to a target power supply port being connected to an electric device, a control chip acquiring a first temperature sent by a temperature measurement assembly, wherein the target power supply port is at least one of at least some of the power supply ports; the control chip compensating the first temperature according to a temperature compensation coefficient to obtain a second temperature, wherein the temperature compensation coefficient is related to a retractable cable corresponding to the target power supply port; and on the basis of the second temperature, the control chip adjusting an allocated output power level for the target power supply port. By means of the above method, the problem of a temperature rise in retractable cables during the operation of the power supply device can be solved.

Description

Power supply equipment and its control methods, computer-readable storage media

[0001] Cross-referencing of related applications

[0002] This application claims priority to Chinese Patent Application No. 2025101943646, filed in China on February 20, 2025, the entire contents of which are incorporated herein by reference.

[0003] [Technical Field]

[0004] This application relates to the field of power supply technology, and in particular to power supply equipment and control methods thereof, and computer-readable storage media.

[0005] [Background Technology]

[0006] With the widespread use of multi-port power supply devices (such as multi-port chargers) and their increasingly smaller size, a power supply device with a built-in retractable charging cable has emerged. However, due to the relatively long length of the retractable cable and its inherent high impedance, and because it needs to connect to the circuit board within the power supply device, this intermediate impedance causes the temperature rise of the retractable cable inside the device to fall short of standards. Furthermore, because the retractable cable is separated from the circuit board within the reel, without temperature-sensing components connected to the circuit board inside the reel, the components within the circuit board cannot detect the temperature of the retractable cable, thus failing to effectively address the temperature rise issue.

[0007] [Summary of the Invention]

[0008] This application provides power supply equipment and its control method, as well as a computer-readable storage medium, which can solve the problem of temperature rise of the expansion joint during the operation of the power supply equipment.

[0009] To solve the above-mentioned technical problems, this application adopts a technical solution as follows: A control method for a power supply device is provided. The power supply device is equipped with a control chip and at least two power supply ports. At least some of the power supply ports are connected to the control chip of the power supply device via a retractable cable. The method includes: the control chip, in response to a target power supply port being connected to an electrical device, acquiring a first temperature sent by a temperature detection component; wherein the target power supply port is at least one of the at least some power supply ports; the control chip compensates for the first temperature according to a temperature compensation coefficient to obtain a second temperature; wherein the temperature compensation coefficient is related to the retractable cable corresponding to the target power supply port; and the control chip adjusts the allocated output power level for the target power supply port according to the second temperature.

[0010] The target power supply port is one of at least some power supply ports. The control chip adjusts the output power level allocated to the target power supply port according to the second temperature, including: the control chip allocates a first output power level to the target power supply port in response to the second temperature being less than a first temperature threshold, wherein the output power corresponding to the first output power level is the maximum output power provided by the power supply device.

[0011] The target power supply port is one of at least some power supply ports. The control chip adjusts the output power level allocated to the target power supply port according to the second temperature, including: the control chip detects the output current corresponding to the target power supply port in response to the second temperature being greater than a first temperature threshold and less than the second temperature threshold; the control chip allocates a second output power level to the target power supply port in response to the output current being greater than a current threshold, wherein the output power corresponding to the second output power level is less than the maximum output power.

[0012] The current thresholds are 4A, 4.2A, 4.3A, 4.5A, or 5A.

[0013] The target power supply port includes at least a first power supply port and a second power supply port. The control chip adjusts the output power level allocated to the target power supply port according to the second temperature, including: the control chip allocates a third output power level to the first power supply port and allocates a fourth output power level to the second power supply port in response to the second temperature being less than a third temperature threshold. The sum of the output power corresponding to the third output power level and the fourth output power level is the maximum output power provided by the power supply device.

[0014] The control chip adjusts the output power level allocated to the target power supply port according to the second temperature, including: the control chip responds to the second temperature being greater than a third temperature threshold and less than the second temperature threshold by allocating a fifth output power level to the first power supply port or a sixth output power level to the second power supply port, wherein the output power corresponding to the fifth output power level is less than the output power corresponding to the third output power level, and the output power corresponding to the sixth output power level is less than the output power corresponding to the fourth output power level.

[0015] The control chip adjusts the output power level allocated to the target power supply port according to the second temperature, including: when the second temperature is greater than the second temperature threshold, the control chip reduces the output power of the higher output power level between the first power supply port and the second power supply port.

[0016] The method further includes: in response to the first power supply port being connected to the first electrical device and the second power supply port being connected to the second electrical device respectively, the control chip obtains the first charging voltage corresponding to the first power supply port and the second charging voltage corresponding to the second power supply port; the control chip identifies the power type of the first electrical device and the second electrical device based on the first charging voltage and the second charging voltage.

[0017] When the power types of the first and second electrical devices are the same, the output power corresponding to the third and fourth output power levels is the same.

[0018] Among them, when the power type of the first electrical device is higher than that of the second electrical device, the output power corresponding to the third output power level is greater than the output power corresponding to the fourth output power level.

[0019] Specifically, when the power type of the first electrical device is lower than that of the second electrical device, the output power corresponding to the third output power level is less than the output power corresponding to the fourth output power level.

[0020] The temperature compensation coefficient is obtained by weighting the number of target power supply ports.

[0021] The temperature compensation coefficient is positively correlated with the number of target power supply ports.

[0022] Before the control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature, the method also includes: the control chip obtaining the corresponding temperature compensation coefficient according to the identification information corresponding to the target power supply port.

[0023] The second temperature is used to characterize the overall temperature of the power supply equipment at the current moment.

[0024] The output power levels include 67W, 50W, 33W and 15W.

[0025] The first temperature threshold is determined based on the wire length of the telescopic cable at the target power supply port.

[0026] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a power supply device, which is provided with a control chip and at least one power supply port, at least a portion of the power supply ports being connected to the control chip of the power supply device via a telescopic cable, the control chip being used to execute a computer program in a memory to implement the control method provided by the above technical solution.

[0027] The power supply equipment includes desktop chargers with retractable cables, wall chargers with retractable cables, multi-port chargers, or multi-port power supplies.

[0028] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a computer-readable storage medium for storing a computer program, which, when executed by a processor, is used to implement the control method provided by the above-mentioned technical solution.

[0029] The power supply equipment and control method and computer-readable storage medium provided in this application, after the control chip obtains the first temperature sent by the temperature detection component, compensates the first temperature using the temperature compensation coefficient related to the telescopic wire to obtain a second temperature that can characterize the temperature of the telescopic wire, and then adjusts the allocated output power level for the target power supply port according to the second temperature, thereby solving the problem of temperature rise of the telescopic wire during the operation of the power supply equipment.

[0030] [Attached Image Description]

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0032] Figure 1 is a structural schematic diagram of an embodiment of the power supply equipment provided in this application;

[0033] Figure 2 is a flowchart illustrating an embodiment of the control method for power supply equipment provided in this application;

[0034] Figure 3 is a flowchart illustrating another embodiment of the control method for the power supply equipment provided in this application;

[0035] Figure 4 is a flowchart illustrating another embodiment of the control method for the power supply equipment provided in this application;

[0036] Figure 5 is a flowchart illustrating another embodiment of the control method for the power supply equipment provided in this application;

[0037] Figure 6 is a flowchart illustrating another embodiment of the control method for the power supply equipment provided in this application;

[0038] Figure 7 is a flowchart illustrating another embodiment of the control method for the power supply equipment provided in this application;

[0039] Figure 8 is a flowchart illustrating another embodiment of the control method for the power supply equipment provided in this application;

[0040] Figure 9 is a schematic diagram of an embodiment of the computer-readable storage medium provided in this application.

[0041]

Detailed Implementation Methods

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] With the widespread use of multi-port power supply devices (such as multi-port chargers) and their increasingly smaller size, a type of power supply device with a built-in retractable charging cable has emerged. However, due to the relatively long length of the retractable cable, its inherent impedance is not low, and the cable needs to connect to the circuit board within the power supply device. This intermediate impedance causes the temperature rise of the retractable cable inside the device to fall short of standards. Furthermore, because the retractable cable is separated from the circuit board within the reel, without temperature-sensing components connected to the circuit board inside the reel, the components within the circuit board cannot detect the temperature of the retractable cable, thus preventing an effective solution to the temperature rise problem.

[0045] Based on this, this application proposes that after the control chip obtains the first temperature sent by the temperature detection component, it compensates for the first temperature using a temperature compensation coefficient related to the telescopic wire to obtain a second temperature that can characterize the temperature of the telescopic wire. Then, based on the second temperature, the output power level allocated to the target power supply port is adjusted, thereby solving the problem of telescopic wire temperature rise during the operation of the power supply equipment. See any of the following embodiments for details.

[0046] Referring to Figure 1, which is a schematic diagram of an embodiment of the power supply device provided in this application, the power supply device 100 is provided with a control chip 10 and at least two power supply ports 20. At least some of the power supply ports 20 are connected to the control chip 10 of the power supply device 100 via a telescopic cable. In some embodiments, the control chip 10 is disposed on a corresponding circuit board, which is connected to one end of the telescopic cable via a communication interface, while the other end of the telescopic cable can be configured as a power supply port 20. That is, the distance of the power supply port 20 can be varied by means of the telescopic cable to achieve long-distance power supply. In other embodiments, the power supply device 100 may also be provided with a fixed-position power supply port 20. That is, the power supply device 100 may simultaneously have a fixed-position power supply port 20 and a telescopically movable power supply port 20.

[0047] In this embodiment, the control chip 10, in response to the connection of the electrical device to the target power supply port, acquires a first temperature sent by the temperature detection component; wherein the target power supply port is at least one of the power supply ports 20; the control chip 10 compensates for the first temperature according to a temperature compensation coefficient to obtain a second temperature; wherein the temperature compensation coefficient is related to the telescopic cable corresponding to the target power supply port; the control chip 10 adjusts the allocated output power level for the target power supply port according to the second temperature. See any of the following embodiments for details.

[0048] Referring to Figure 2, Figure 2 is a schematic flowchart of an embodiment of the control method for a power supply device provided in this application. The power supply device is as described in any embodiment of this application: power supply device 100. The method includes:

[0049] Step 21: In response to the device being connected to the target power supply port, the control chip acquires the first temperature sent by the temperature detection component; wherein the target power supply port is at least one of the at least some power supply ports.

[0050] In some embodiments, the temperature detection component can be composed of a temperature sensor. For example, the temperature sensor can be a thermistor. A thermistor is a sensor resistor whose resistance changes with temperature. Based on their temperature coefficient, they are classified into positive temperature coefficient (PTC) thermistors and negative temperature coefficient (NTC) thermistors. The resistance of a PTC thermistor increases with increasing temperature, while the resistance of a NTC thermistor decreases with increasing temperature. The temperature detection component can be mounted on the same circuit board as the control chip. That is, the temperature detection component can detect the temperature data of the control chip and other electronic components, including the circuit board.

[0051] In some embodiments, if the target power supply port is at least one of at least some power supply ports, it means that the power supply port corresponding to the telescopic cable used by the electrical equipment is powered.

[0052] Step 22: The control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port.

[0053] In some embodiments, because the retractable cord is installed in the power supply equipment and has its own resistance, it also generates heat when supplying power. This can affect the accuracy of temperature detection by a single temperature sensing component in the power supply equipment. Therefore, this application proposes a temperature compensation method where the control chip compensates for the first temperature according to a temperature compensation coefficient to obtain a second temperature. The second temperature is then used to characterize the overall temperature of the power supply equipment at the current moment.

[0054] It is understandable that since the retractable cord is installed in the power supply equipment, its own wire material and other parameters are fixed. Therefore, the relationship between the retractable cord and temperature can be statistically determined in advance through experiments, and then the temperature compensation coefficient of the retractable cord can be obtained.

[0055] In some embodiments, the temperature compensation coefficient can be obtained by weighting the number of target power supply ports. For example, if the number of target power supply ports is 1, then a single retractable cord generates heat, and the temperature compensation coefficient is a first value A. If the number of target power supply ports is 2, then two retractable cords generate heat, and the temperature compensation coefficient is a second value B. Where B is greater than A. If the number of target power supply ports is 3, then three retractable cords generate heat, and the temperature compensation coefficient is a third value C. Where C is greater than B. The temperature compensation coefficient can be specifically obtained by weighting the actual number of target power supply ports.

[0056] Step 23: The control chip adjusts the output power level allocated to the target power supply port according to the second temperature.

[0057] In some embodiments, the control chip can adjust the output power level allocated to the target power supply port according to a preset output power level allocation logic based on the second temperature.

[0058] In some embodiments, since the temperature changes over time during the process of the power supply equipment supplying power to the electrical equipment, the above-mentioned output power level allocation can be performed in real time or according to a preset time period, so as to ensure the accuracy of the output power level allocation, increase the usage time of each output power level during use, and thus not shorten the time before downgrading, so that the electrical equipment can be charged faster.

[0059] In this embodiment, after the control chip obtains the first temperature sent by the temperature detection component, it compensates the first temperature using the temperature compensation coefficient related to the telescopic wire to obtain a second temperature that can characterize the temperature of the telescopic wire. Then, it adjusts the allocated output power level for the target power supply port according to the second temperature, thereby solving the problem of temperature rise of the telescopic wire during the operation of the power supply equipment.

[0060] Furthermore, by using a temperature compensation coefficient related to the telescopic cable to compensate for the first temperature, a second temperature that can characterize the temperature of the telescopic cable can be obtained. This eliminates the need to install an additional temperature detection component at the telescopic cable location of the power supply equipment, thereby reducing hardware costs.

[0061] Referring to Figure 3, Figure 3 is a schematic flowchart of another embodiment of the control method for a power supply device provided in this application. The power supply device is as described in any embodiment of this application: power supply device 100. The method includes:

[0062] Step 31: The control chip responds to the connection of the target power supply port to the power-consuming device and obtains the first temperature sent by the temperature detection component; wherein, the target power supply port is one of at least some power supply ports.

[0063] In this embodiment, a single target power supply port is used as an example for explanation. This means that the retractable cable used by the electrical equipment is supplied with power through a single target power supply port.

[0064] Step 32: The control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port.

[0065] In some embodiments, the retractable cords within the power supply equipment can each correspond to a different temperature compensation coefficient, and there is a one-to-one correspondence between the target power supply port and the retractable cord. Therefore, identification information can be set for each target power supply port, and the temperature compensation coefficient corresponding to this identification information can be stored in the power supply equipment. When a target power supply port is detected to be connected to an electrical device, the corresponding temperature compensation coefficient can be obtained based on the identification information corresponding to the target power supply port, and then step 32 can be executed.

[0066] Step 33: In response to the second temperature being lower than the first temperature threshold, the control chip allocates a first output power level to the target power supply port, wherein the output power corresponding to the first output power level is the maximum output power provided by the power supply device.

[0067] In some embodiments, the first temperature threshold can be determined based on the wire material of the retractable cord. This is because the retractable cord generates heat during power supply; therefore, the first temperature threshold is determined by the wire material. The first temperature threshold characterizes the over-temperature point of the retractable cord under high current. The over-temperature point refers to the temperature threshold in an electronic device or system that triggers a protection mechanism due to excessively high temperature. When the temperature exceeds this threshold, the system automatically takes measures to prevent equipment damage or performance degradation. Over-temperature protection is an important safety feature in electronic devices, especially important in high-power devices or systems requiring long-term operation.

[0068] When the second temperature is lower than the first temperature threshold, it indicates that the telescopic cable can withstand the second temperature and the output current meets the requirements. Therefore, in response to the second temperature being lower than the first temperature threshold, the control chip allocates a first output power level to the target power supply port. The output power corresponding to the first output power level is the maximum output power provided by the power supply equipment. This utilizes the maximum output power to supply power to the electrical equipment, thereby accelerating power supply efficiency.

[0069] In this embodiment, after the control chip obtains the first temperature sent by the temperature detection component, it compensates the first temperature using a temperature compensation coefficient related to the telescopic cable to obtain a second temperature that can characterize the temperature of the telescopic cable. Then, when the second temperature is less than the first temperature threshold, it allocates a first output power level to the target power supply port. The output power corresponding to the first output power level is the maximum output power provided by the power supply device. This solves the problem of the telescopic cable temperature rise during the operation of the power supply device and can also reasonably set the output power level based on the heat generation of the telescopic cable, thereby improving power supply efficiency.

[0070] Referring to Figure 4, Figure 4 is a schematic flowchart of another embodiment of the control method for a power supply device provided in this application. The power supply device is as described in any embodiment of this application: power supply device 100. The method includes:

[0071] Step 41: The control chip responds to the connection of the target power supply port to the power-consuming device and obtains the first temperature sent by the temperature detection component; wherein, the target power supply port is one of at least some power supply ports.

[0072] Step 42: The control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port.

[0073] In some embodiments, steps 41 to 42 have the same or similar technical solutions as any embodiment of this application, and will not be described in detail here.

[0074] Step 43: The control chip responds to the second temperature being greater than the first temperature threshold and less than the second temperature threshold by detecting the output current corresponding to the target power supply port.

[0075] In some embodiments, the first temperature threshold can be determined based on the wire material of the retractable cord. This is because the retractable cord generates heat during power supply; therefore, the first temperature threshold is determined by the wire material. The first temperature threshold characterizes the over-temperature point of the retractable cord material under high current.

[0076] Therefore, when the second temperature is greater than the first temperature threshold but less than the second temperature threshold, the control chip needs to detect the output current corresponding to the target power supply port in order to decide whether to execute step 44.

[0077] In some embodiments, the control chip, in response to a second temperature being lower than a first temperature threshold, assigns a first output power level to the target power supply port, wherein the output power corresponding to the first output power level is the maximum output power provided by the power supply device.

[0078] Step 44: In response to the output current being greater than the current threshold, the control chip allocates a second output power level to the target power supply port, wherein the output power corresponding to the second output power level is less than the maximum output power.

[0079] In step 44, the control chip responds to the output current being greater than the current threshold by allocating a second output power level to the target power supply port, thereby reducing the output power of the target power supply port and reducing the heat generation of its corresponding telescopic cable.

[0080] In some embodiments, the current threshold can be determined based on the material of the telescopic wire. For example, the current threshold can be 4A, 4.2A, 4.3A, 4.5A, 5A, etc.

[0081] In some embodiments, in a single target power supply port power supply scenario, the second temperature typically does not exceed the second temperature threshold after step 44 is completed.

[0082] In this embodiment, after the control chip obtains the first temperature sent by the temperature detection component, it compensates the first temperature using a temperature compensation coefficient related to the telescopic cable to obtain a second temperature that can characterize the temperature of the telescopic cable. Then, when the output current is greater than the current threshold, it allocates a second output power level to the target power supply port. The output power corresponding to the second output power level is less than the maximum output power, thereby solving the problem of temperature rise of the telescopic cable during the operation of the power supply equipment. It can also reasonably set the output power level based on the heat generation of the telescopic cable to control the heat generation of the telescopic cable.

[0083] Referring to Figure 5, Figure 5 is a schematic flowchart of another embodiment of the control method for a power supply device provided in this application. The power supply device is as described in any embodiment of this application: power supply device 100. The method includes:

[0084] Step 51: In response to the device being connected to the target power supply port, the control chip acquires the first temperature sent by the temperature detection component; wherein the target power supply port is at least one of the at least some power supply ports.

[0085] In this embodiment, two target power supply ports are described, such as a first power supply port and a second power supply port. That is, the first power supply port can be connected to a first electrical device, and the second power supply port can be connected to a second electrical device.

[0086] In other embodiments, the target power supply ports can be 3, 4, or 5.

[0087] Step 52: The control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port.

[0088] In some embodiments, step 52 has the same or similar technical solution as any embodiment of this application, and will not be described in detail here.

[0089] Step 53: In response to the second temperature being lower than the third temperature threshold, the control chip allocates a third output power level to the first power supply port and a fourth output power level to the second power supply port. The sum of the output power corresponding to the third and fourth output power levels is the maximum output power provided by the power supply device.

[0090] In this embodiment, the third temperature threshold is greater than the first temperature threshold in the above embodiment, but less than the second temperature threshold.

[0091] In this embodiment, since both power supply ports are connected to electrical equipment, it is necessary to reasonably allocate the output power levels so that the sum of the output power corresponding to the third and fourth output power levels is the maximum output power provided by the power supply equipment.

[0092] Taking a maximum output power of 100W as an example, the third output power level can be 33W, and the fourth output power level can be 67W. Or the third output power level can be 67W, and the fourth output power level can be 33W. Or both the third and fourth output power levels can be 50W.

[0093] In this embodiment, after the control chip obtains the first temperature sent by the temperature detection component, it compensates the first temperature using the temperature compensation coefficient related to the telescopic wire to obtain a second temperature that can characterize the temperature of the telescopic wire. Then, when the second temperature is less than the third temperature threshold, it allocates a third output power level to the first power supply port and a fourth output power level to the second power supply port, thereby solving the problem of temperature rise of the telescopic wire during the operation of the power supply equipment.

[0094] Referring to Figure 6, Figure 6 is a schematic flowchart of another embodiment of the control method for the power supply equipment provided in this application. The power supply equipment is as described in any embodiment of this application: power supply equipment 100. The method includes:

[0095] Step 61: In response to the power supply port being connected to the power-consuming device, the control chip acquires the first temperature sent by the temperature detection component; wherein the target power supply port is at least one of the at least some power supply ports.

[0096] In this embodiment, two target power supply ports are described, such as a first power supply port and a second power supply port. That is, the first power supply port can be connected to a first electrical device, and the second power supply port can be connected to a second electrical device.

[0097] Step 62: The control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port.

[0098] In some embodiments, step 62 has the same or similar technical solution as any embodiment of this application, and will not be described in detail here.

[0099] Step 63: In response to the second temperature being greater than the third temperature threshold and less than the second temperature threshold, the control chip allocates a fifth output power level to the first power supply port or a sixth output power level to the second power supply port. The output power corresponding to the fifth output power level is less than the output power corresponding to the third output power level, and the output power corresponding to the sixth output power level is less than the output power corresponding to the fourth output power level.

[0100] In some embodiments, when the second temperature is greater than the third temperature threshold but less than the second temperature threshold, it indicates that the temperature is too high. In this case, it is necessary to adjust the output power level of the first power supply port or the second power supply port appropriately to reduce the heat generated during operation.

[0101] In some embodiments, when the second temperature is greater than a third temperature threshold but less than the second temperature threshold, the output power level of the higher output power of the first power supply port and the second power supply port can be reduced. For example, if the output power corresponding to the third output power level is greater than the output power corresponding to the fourth output power level, the third output power level is reduced and adjusted to the fifth output power level. If the output power corresponding to the third output power level is less than the output power corresponding to the fourth output power level, the fourth output power level is reduced and adjusted to the sixth output power level.

[0102] In this embodiment, after the control chip obtains the first temperature sent by the temperature detection component, it compensates the first temperature using the temperature compensation coefficient related to the telescopic wire to obtain a second temperature that can characterize the temperature of the telescopic wire. Then, when the second temperature is greater than the third temperature threshold but less than the second temperature threshold, it allocates the fifth output power level to the first power supply port or the sixth output power level to the second power supply port, thereby solving the problem of the temperature rise of the telescopic wire during the operation of the power supply equipment.

[0103] Referring to Figure 7, Figure 7 is a schematic flowchart of another embodiment of the control method for a power supply device provided in this application. The power supply device is as described in any embodiment of this application: power supply device 100. The method includes:

[0104] Step 71: In response to the power supply port being connected to the power-consuming device, the control chip acquires the first temperature sent by the temperature detection component; wherein the target power supply port is at least one of the at least some power supply ports.

[0105] In this embodiment, two target power supply ports are described, such as a first power supply port and a second power supply port. That is, the first power supply port can be connected to a first electrical device, and the second power supply port can be connected to a second electrical device.

[0106] Step 72: The control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port.

[0107] In some embodiments, step 72 has the same or similar technical solution as any embodiment of this application, and will not be described in detail here.

[0108] Step 73: In response to the second temperature being greater than the second temperature threshold, the control chip lowers the output power of the higher output power level between the first power supply port and the second power supply port.

[0109] In this embodiment, if the temperature continues to rise after assigning the fifth output power level to the first power supply port or the sixth output power level to the second power supply port, the control chip will respond to the second temperature being greater than the second temperature threshold by lowering the output power of the higher output power level between the first and second power supply ports, thereby further reducing the output power level and reducing heat generation during the power supply process.

[0110] Referring to Figure 8, Figure 8 is a flowchart illustrating another embodiment of the control method for a power supply device provided in this application. The power supply device is as described in any embodiment of this application: power supply device 100. The method includes:

[0111] Step 81: In response to the power supply port being connected to the power-consuming device, the control chip acquires the first temperature sent by the temperature detection component; wherein, the target power supply port is at least one of the at least some power supply ports.

[0112] Step 82: The control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port.

[0113] In some embodiments, steps 81 to 82 have the same or similar technical solutions as any embodiment of this application, and will not be described in detail here.

[0114] Step 83: The control chip responds to the first power supply port being connected to the first power-consuming device and the second power supply port being connected to the second power-consuming device, and obtains the first charging voltage corresponding to the first power supply port and the second charging voltage corresponding to the second power supply port.

[0115] In some embodiments, different electrical devices require different voltages. For example, the required voltage may be 5V, 9V, 12V, 20V, etc. Therefore, the power requirements of different electrical devices are also different. Therefore, step 84 can be executed after step 83 to identify the power type of the first and second electrical devices.

[0116] Step 84: The control chip identifies the power type of the first and second electrical devices based on the first charging voltage and the second charging voltage.

[0117] In some embodiments, power types can be divided into a first power type and a second power type. The first power type indicates that the power demand of the electrical equipment is relatively small, and the second power type indicates that the power demand of the electrical equipment is relatively large.

[0118] Step 85: The control chip assigns the corresponding output power level to the first power supply port and the second power supply port based on the second temperature and the power type of the first and second electrical devices.

[0119] In some embodiments, when the power types of the first and second electrical devices are the same, the output power corresponding to the third and fourth output power levels is the same. For example, if the maximum output power of the power supply device is 100W, then an output power level of 50W can be assigned to the first and second power supply ports. Exemplarily, the control chip assigns the same output power level to the first and second power supply ports in response to a second temperature being lower than a third temperature threshold. Further, the control chip reduces the output power level of the first power supply port in response to a second temperature being higher than the third temperature threshold but lower than the second temperature threshold. Further, the control chip lowers the output power level of the second power supply port in response to a second temperature being higher than the second temperature threshold.

[0120] In some embodiments, when the power type of the first electrical device is higher than that of the second electrical device, the output power corresponding to the third output power level is greater than the output power corresponding to the fourth output power level. For example, in response to a second temperature being lower than a third temperature threshold, the control chip allocates a third output power level to the first power supply port and a fourth output power level to the second power supply port, wherein the sum of the output power corresponding to the third and fourth output power levels is the maximum output power provided by the power supply device, and the output power corresponding to the third output power level is greater than the output power corresponding to the fourth output power level. Further, in response to a second temperature being greater than the third temperature threshold but less than the second temperature threshold, the control chip allocates a sixth output power level to the second power supply port, wherein the output power corresponding to the sixth output power level is less than the output power corresponding to the fourth output power level. Further, in response to a second temperature being greater than the second temperature threshold, the control chip lowers the output power level corresponding to the first power supply port, i.e., lowers the output power corresponding to the first power supply port.

[0121] In some embodiments, when the power type of the first electrical device is lower than that of the second electrical device, the output power corresponding to the third output power level is less than the output power corresponding to the fourth output power level. For example, in response to a second temperature being lower than a third temperature threshold, the control chip allocates a third output power level to the first power supply port and a fourth output power level to the second power supply port, wherein the sum of the output power corresponding to the third and fourth output power levels is the maximum output power provided by the power supply device, and the output power corresponding to the third output power level is less than the output power corresponding to the fourth output power level. Further, in response to a second temperature being greater than the third temperature threshold but less than the second temperature threshold, the control chip allocates a fifth output power level to the first power supply port, wherein the output power corresponding to the fifth output power level is less than the output power corresponding to the third output power level. Further, in response to a second temperature being greater than the second temperature threshold, the control chip lowers the output power level corresponding to the second power supply port, i.e., lowers the output power corresponding to the second power supply port.

[0122] In this embodiment, based on the power type of the electrical equipment, a large output power level is assigned to high-power types and a small output power level is assigned to low-power types. When the second temperature is greater than the third temperature threshold but less than the second temperature threshold, the output power corresponding to the small output power level is reduced first to ensure the output power corresponding to the large output power level. Then, when the second temperature is greater than the second temperature threshold, the output power corresponding to the large output power level is reduced again, so as not to shorten the time before downgrading and to charge the electrical equipment faster.

[0123] In one application scenario, the power supply equipment can be a multi-port charger, multi-port power supply, or similar product. For multi-port chargers, there are multiple output voltage / power combinations. The detection method typically involves using an NTC thermistor (Negative Temperature Coefficient Thermistor) or other temperature control devices to detect a hotter component on the PCB (Printed Circuit Board) to achieve core temperature control. However, due to differences in current and power, the retractable cable itself generates varying degrees of heat, in addition to the PCB components, making conventional single-point detection methods ineffective for temperature control. Therefore, this application proposes that after the control chip receives a first temperature from the temperature detection component, it compensates for the first temperature using a temperature compensation coefficient to obtain a second temperature. This second temperature represents the overall temperature including the retractable cable temperature, thereby enabling intelligent temperature detection and control in multi-port chargers with retractable cables.

[0124] For example, the C1 / C2 output ports (power supply ports) in a multi-port charger have retractable cables. The steps are as follows:

[0125] Step 1: When inserting a device into any single port of C1 / C2, if the NTC temperature is below 90 degrees Celsius, the power settings are 5V / 3A, 9V / 3A, 12V / 3A, 15V / 3A, and 20V / 5A, with a maximum of 100W. When the NTC temperature reaches 90 degrees Celsius after a certain period of time, and the measured internal temperature of the corresponding retractable cable is 80 degrees Celsius, the MUC detects that the output power setting is 20V / 5A (100W), and the output current of the retractable cable is greater than 4A. Then, the output power setting is reduced to 20V / 4A (80W).

[0126] Step 2: When devices are inserted into both C1 and C2 output ports simultaneously, if the NTC temperature is below 95 degrees Celsius, the power distribution is C1+C2=67W+33W or 33W+67W or 50W+50W. If the NTC temperature reaches 95 degrees Celsius but is less than 105 degrees Celsius after a certain period of time, the power distribution between C1 and C2 output ports is reduced to C1+C2=67W+15W or 15W+67W or 30W+50W. If the NTC temperature exceeds 105 degrees Celsius after a certain period of time, the output power of the higher power setting between C1 and C2 output ports remains unchanged.

[0127] The voltage and current for each of the above ranges are as follows:

[0128] 67W: 5V / 3A, 9V / 3A, 12V / 3A, 15V / 3A, 20V / 3.35A.

[0129] 50W: 5V / 3A, 9V / 3A, 12V / 3A, 15V / 3A, 20V / 2.5A.

[0130] 33W: 5V / 3A, 9V / 3A, 12V / 2.75A, 15V / 2.2A, 20V / 1.65A.

[0131] 15W: 5V / 3A, 9V / 1.67A.

[0132] Through the above intelligent detection methods, the temperature rise requirements of the telescopic cable under high current conditions can be effectively identified. This ensures that the temperature rise of the components on the PCB is met while also meeting the temperature rise requirements of the telescopic cable. Furthermore, it can ensure that any single or combined setting can meet the maximum usage time, thus not shortening the time before downgrading and making the device charge faster.

[0133] Furthermore, the power supply equipment in Figure 1 will be explained in detail:

[0134] In some embodiments, the target power supply port is one of at least some power supply ports, and the control chip 10 is further configured to: in response to a second temperature being less than a first temperature threshold, allocate a first output power level to the target power supply port, wherein the output power corresponding to the first output power level is the maximum output power provided by the power supply device.

[0135] In some embodiments, the target power supply port is one of at least some power supply ports, and the control chip 10 is further configured to: detect the output current corresponding to the target power supply port in response to a second temperature being greater than a first temperature threshold and less than a second temperature threshold; and allocate a second output power level to the target power supply port in response to an output current being greater than a current threshold, wherein the output power corresponding to the second output power level is less than the maximum output power.

[0136] In some embodiments, the target power supply port includes at least a first power supply port and a second power supply port. The control chip 10 is further configured to: in response to a second temperature being less than a third temperature threshold, allocate a third output power level to the first power supply port and allocate a fourth output power level to the second power supply port, wherein the sum of the output power corresponding to the third output power level and the fourth output power level is the maximum output power provided by the power supply device.

[0137] In some embodiments, the control chip 10 is further configured to: in response to a second temperature being greater than a third temperature threshold and less than the second temperature threshold, allocate a fifth output power level to the first power supply port, or allocate a sixth output power level to the second power supply port, wherein the output power corresponding to the fifth output power level is less than the output power corresponding to the third output power level, and the output power corresponding to the sixth output power level is less than the output power corresponding to the fourth output power level.

[0138] In some embodiments, the control chip 10 is further configured to: in response to a second temperature being greater than a second temperature threshold, reduce the output power of the higher of the output power levels corresponding to the first power supply port and the second power supply port.

[0139] In some embodiments, the control chip 10 is further configured to: in response to the first power supply port being connected to the first power-consuming device and the second power supply port being connected to the second power-consuming device respectively, obtain the first charging voltage corresponding to the first power supply port and the second charging voltage corresponding to the second power supply port; and the control chip identifies the power type of the first power-consuming device and the second power-consuming device based on the first charging voltage and the second charging voltage.

[0140] In some embodiments, when the power types of the first and second electrical devices are the same, the output power corresponding to the third and fourth output power levels is the same; when the power type of the first electrical device is higher than that of the second electrical device, the output power corresponding to the third output power level is greater than that corresponding to the fourth output power level; when the power type of the first electrical device is lower than that of the second electrical device, the output power corresponding to the third output power level is less than that corresponding to the fourth output power level.

[0141] It is understood that the control chip 10 and at least one power supply port 20 cooperate with each other to implement the method of any of the above embodiments.

[0142] In some embodiments, the power supply device 100 may be a desktop charger, wall charger, ultra-thin charger, or other similar product with a retractable cord.

[0143] Referring to Figure 9, which is a schematic diagram of an embodiment of a computer-readable storage medium provided in this application, the computer-readable storage medium 90 is used to store a computer program 91. When executed by a processor, the computer program 91 is used to implement the following method:

[0144] The control chip responds to the connection of the electrical device to the target power supply port and obtains the first temperature sent by the temperature detection component; wherein, the target power supply port is at least one of the at least some power supply ports; the control chip compensates the first temperature according to the temperature compensation coefficient to obtain the second temperature; wherein, the temperature compensation coefficient is related to the telescopic line corresponding to the target power supply port; the control chip adjusts the allocated output power level for the target power supply port according to the second temperature.

[0145] In some embodiments, the target power supply port is one of at least some power supply ports, and when the computer program 91 is executed by the processor, it is also used to implement the following method: in response to the second temperature being less than the first temperature threshold, the control chip assigns a first output power level to the target power supply port, wherein the output power corresponding to the first output power level is the maximum output power provided by the power supply device.

[0146] In some embodiments, the target power supply port is one of at least some power supply ports. When the computer program 91 is executed by the processor, it is further configured to implement the following method: the control chip detects the output current corresponding to the target power supply port in response to a second temperature being greater than a first temperature threshold and less than a second temperature threshold; the control chip allocates a second output power level to the target power supply port in response to an output current being greater than a current threshold, wherein the output power corresponding to the second output power level is less than the maximum output power.

[0147] In some embodiments, the target power supply port includes at least a first power supply port and a second power supply port. When the computer program 91 is executed by the processor, it is also used to implement the following method: in response to a second temperature being less than a third temperature threshold, the control chip allocates a third output power level to the first power supply port and allocates a fourth output power level to the second power supply port, wherein the sum of the output power corresponding to the third output power level and the fourth output power level is the maximum output power provided by the power supply device.

[0148] In some embodiments, when the computer program 91 is executed by the processor, it is further configured to implement the following method: in response to a second temperature being greater than a third temperature threshold and less than the second temperature threshold, the control chip allocates a fifth output power level to the first power supply port or allocates a sixth output power level to the second power supply port, wherein the output power corresponding to the fifth output power level is less than the output power corresponding to the third output power level, and the output power corresponding to the sixth output power level is less than the output power corresponding to the fourth output power level.

[0149] In some embodiments, when the computer program 91 is executed by the processor, it is also used to implement the following method: in response to the second temperature being greater than the second temperature threshold, the control chip reduces the output power of the higher of the output power levels corresponding to the first power supply port and the second power supply port.

[0150] In some embodiments, when the computer program 91 is executed by the processor, it is further configured to implement the following method: in response to the first power supply port being connected to the first power-consuming device and the second power supply port being connected to the second power-consuming device respectively, the control chip obtains the first charging voltage corresponding to the first power supply port and the second charging voltage corresponding to the second power supply port; the control chip identifies the power type of the first power-consuming device and the second power-consuming device based on the first charging voltage and the second charging voltage.

[0151] In some embodiments, when the computer program 91 is executed by the processor, it is further configured to implement the following method: when the power types of the first electrical device and the second electrical device are the same, the output power corresponding to the third output power level and the fourth output power level are the same; when the power type of the first electrical device is higher than the power type of the second electrical device, the output power corresponding to the third output power level is greater than the output power corresponding to the fourth output power level; when the power type of the first electrical device is lower than the power type of the second electrical device, the output power corresponding to the third output power level is less than the output power corresponding to the fourth output power level.

[0152] It is understood that when computer program 91 is executed by a processor, it is also used to implement the methods of any of the above embodiments.

[0153] In summary, the power supply equipment and control method and computer-readable storage medium provided in this application, after the control chip obtains the first temperature sent by the temperature detection component, compensates the first temperature using the temperature compensation coefficient related to the telescopic wire to obtain a second temperature that can characterize the temperature of the telescopic wire, and then adjusts the allocated output power level for the target power supply port according to the second temperature, thereby solving the problem of temperature rise of the telescopic wire during the operation of the power supply equipment.

[0154] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of circuits or units is merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0155] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0156] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0157] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the description and drawings of this application, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A control method for power supply equipment, characterized in that, The power supply device is equipped with a control chip and at least two power supply ports, at least some of the at least two power supply ports being connected to the control chip of the power supply device via a retractable cable, and the method includes: The control chip receives a first temperature sent by the temperature detection component in response to the electrical device being connected to the target power supply port; wherein the target power supply port is at least one of the at least some power supply ports; The control chip compensates for the first temperature according to a temperature compensation coefficient to obtain a second temperature; wherein, the temperature compensation coefficient is related to the telescopic cable corresponding to the target power supply port; The control chip adjusts the output power level allocated to the target power supply port based on the second temperature.

2. The control method according to claim 1, characterized in that, The target power supply port is one of the at least some power supply ports, and the control chip adjusts the allocated output power level for the target power supply port according to the second temperature, including: In response to the second temperature being less than the first temperature threshold, the control chip allocates a first output power level to the target power supply port, wherein the output power corresponding to the first output power level is the maximum output power provided by the power supply device.

3. The control method according to claim 2, characterized in that, The first temperature threshold is determined based on the wire length of the telescopic cable at the target power supply port.

4. The control method according to claim 1, characterized in that, The target power supply port is one of the at least some power supply ports, and the control chip adjusts the allocated output power level for the target power supply port according to the second temperature, including: The control chip detects the output current corresponding to the target power supply port in response to the second temperature being greater than the first temperature threshold and less than the second temperature threshold. In response to the output current being greater than a current threshold, the control chip allocates a second output power level to the target power supply port, wherein the output power corresponding to the second output power level is less than the maximum output power.

5. The control method according to claim 4, characterized in that, The current threshold is 4A, 4.2A, 4.3A, 4.5A or 5A.

6. The control method according to claim 1, characterized in that, The target power supply port includes at least a first power supply port and a second power supply port. The control chip adjusts the allocated output power level for the target power supply port according to the second temperature, including: In response to the second temperature being less than the third temperature threshold, the control chip allocates a third output power level to the first power supply port and a fourth output power level to the second power supply port, wherein the sum of the output power corresponding to the third and fourth output power levels is the maximum output power provided by the power supply device.

7. The control method according to claim 6, characterized in that, The control chip adjusts the allocated output power level for the target power supply port based on the second temperature, including: In response to the second temperature being greater than the third temperature threshold and less than the second temperature threshold, the control chip allocates a fifth output power level to the first power supply port or allocates a sixth output power level to the second power supply port, wherein the output power corresponding to the fifth output power level is less than the output power corresponding to the third output power level, and the output power corresponding to the sixth output power level is less than the output power corresponding to the fourth output power level.

8. The control method according to claim 7, characterized in that, The control chip adjusts the allocated output power level for the target power supply port based on the second temperature, including: In response to the second temperature being greater than the second temperature threshold, the control chip reduces the output power of the higher output power level between the first power supply port and the second power supply port.

9. The control method according to any one of claims 6 to 8, characterized in that, The method further includes: The control chip responds to the first power supply port being connected to the first electrical device and the second power supply port being connected to the second electrical device respectively, by obtaining the first charging voltage corresponding to the first power supply port and the second charging voltage corresponding to the second power supply port; The control chip identifies the power type of the first electrical device and the second electrical device based on the first charging voltage and the second charging voltage.

10. The control method according to claim 9, characterized in that, When the power types of the first electrical device and the second electrical device are the same, the output power corresponding to the third output power level and the fourth output power level is the same.

11. The control method according to claim 9, characterized in that, When the power type of the first electrical device is higher than that of the second electrical device, the output power corresponding to the third output power level is greater than the output power corresponding to the fourth output power level.

12. The control method according to claim 9, characterized in that, When the power type of the first electrical device is lower than that of the second electrical device, the output power corresponding to the third output power level is less than the output power corresponding to the fourth output power level.

13. The control method according to any one of claims 1 to 12, characterized in that, The temperature compensation coefficient is obtained by weighting the number of target power supply ports.

14. The control method according to claim 13, characterized in that, The temperature compensation coefficient is positively correlated with the number of target power supply ports.

15. The control method according to any one of claims 1 to 12, characterized in that, Before the control chip compensates for the first temperature according to the temperature compensation coefficient to obtain the second temperature, the method further includes: The control chip obtains the corresponding temperature compensation coefficient based on the identification information corresponding to the target power supply port.

16. The control method according to any one of claims 1 to 15, characterized in that, The second temperature is used to characterize the overall temperature of the power supply equipment at the current moment.

17. The control method according to any one of claims 1 to 16, characterized in that, The output power levels include 67W, 50W, 33W, and 15W.

18. A power supply device, characterized in that, The power supply device is provided with a control chip and at least one power supply port. At least a portion of the power supply ports are connected to the control chip of the power supply device via a telescopic cable. The control chip is used to execute a computer program in a memory to implement the control method as described in any one of claims 1-17.

19. The power supply equipment according to claim 18, characterized in that, The power supply equipment is a desktop charger with a retractable cable, a wall charger with a retractable cable, a multi-port charger, or a multi-port power supply.

20. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, which, when executed by a processor, is used to implement the control method as described in any one of claims 1-17.

Images