WO2016206631A1 - 无线充电监控装置以及方法、无线充电装置 - Google Patents
无线充电监控装置以及方法、无线充电装置 Download PDFInfo
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- WO2016206631A1 WO2016206631A1 PCT/CN2016/087085 CN2016087085W WO2016206631A1 WO 2016206631 A1 WO2016206631 A1 WO 2016206631A1 CN 2016087085 W CN2016087085 W CN 2016087085W WO 2016206631 A1 WO2016206631 A1 WO 2016206631A1
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- wireless charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
Definitions
- the present invention relates to the field of wireless charging technologies, and in particular, to a wireless charging monitoring device, and to a wireless charging monitoring method, and a wireless charging device.
- the charging power is relatively small, the amount of heat generation is low, and the temperature is not regulated. Therefore, when the wireless charging power is large, the heat generation is large, the temperature rise in the wireless charging device is fast, the device damage is easily caused, and even a safety accident is caused, and the safety of the wireless charging process cannot be ensured.
- a wireless charging monitoring device for monitoring a charging process of a wireless charging device, comprising: a temperature detecting module for detecting a temperature of the wireless charging device in real time; and a frequency detecting module for detecting the wireless charging device in real time a charging state detecting module, configured to detect a charging state parameter of the wireless charging device in real time; and a control module respectively connected to the temperature detecting module, the frequency detecting module, and the charging state detecting module, Determining whether the charging state of the wireless charging device is balanced with the temperature according to the charging state parameter and the temperature; the control module is further configured to determine that the charging state of the wireless charging device is not the temperature And during the balancing, the frequency adjustment command is generated according to the charging state parameter and the temperature; and an execution module is connected to the control module, configured to adjust an operating frequency of the wireless charging device according to the frequency adjustment command to implement Adjusting the state of charge parameter to cause the wireless charging Opposed to the state of charge of the equilibrium temperature.
- the temperature detecting module is disposed on a circuit board of the wireless charging device to detect the temperature of the circuit board in real time.
- control module determines whether the state of charge of the wireless charging device is balanced with the temperature by determining whether the temperature is equal to a preset temperature, and if so, indicating the state of charge and the temperature Phase equilibrium; if otherwise indicating that the state of charge is not balanced with the temperature.
- the determining module when determining the charging state of the wireless charging device and the temperature imbalance, according to the charging state parameter and the temperature generating frequency adjustment instruction, specifically includes: the controlling The module is further configured to determine whether the temperature is less than the preset temperature, and generate a frequency adjustment instruction for reducing the frequency when the temperature is less than a preset value; the control module is further configured to be at the temperature A frequency adjustment command for increasing the frequency is generated when the preset temperature is greater than the preset temperature.
- the method further includes: a heat dissipation module connected to the control module; the control module is further configured to generate a startup heat dissipation command and output the heat dissipation module to the heat dissipation module when the temperature is greater than the preset temperature; The heat dissipation module is configured to start heat dissipation of the wireless charging device according to the startup heat dissipation command.
- control module is further configured to determine whether the temperature is greater than a threshold temperature, and generate a shutdown command to the wireless charging device when the temperature is greater than a threshold temperature, and control the wireless charging device to stop Charging.
- a wireless charging device is also provided.
- a wireless charging device including a wireless charging coil, further comprising the wireless charging monitoring device of any of the foregoing embodiments.
- a wireless charging monitoring method is also provided.
- a wireless charging monitoring method for monitoring a charging process of a wireless charging device includes the steps of: detecting a temperature of the wireless charging device in real time; detecting an operating frequency of the wireless charging device in real time; detecting the wireless charging in real time; a charging state parameter of the device; determining, according to the charging state parameter and the temperature, whether the wireless charging state is balanced with the temperature; if not, generating a frequency adjustment command according to the charging state parameter and the temperature; The frequency adjustment command adjusts the frequency to achieve adjustment of the state of charge parameter such that a state of charge of the wireless charging device is balanced with the temperature.
- the step of determining whether the wireless charging state is balanced with the temperature according to the charging state parameter and the temperature is specifically: determining whether the temperature is equal to The preset temperature, if so, the wireless state of charge is balanced with the temperature.
- the step of determining whether the wireless charging state is balanced with the temperature according to the charging state parameter and the temperature determines that the wireless charging state and the temperature are unbalanced And performing the steps of: determining whether the temperature is less than the preset temperature; if yes, generating a frequency adjustment instruction for reducing the frequency; if the temperature is greater than the preset temperature, generating for increasing The frequency adjustment command of the frequency.
- the present invention also provides another wireless charging monitoring method for monitoring a process of charging a wireless charging device to an energy storage device, comprising the steps of: acquiring a temperature of the wireless charging device; and adjusting a charging state of the wireless charging device according to the temperature.
- the step of adjusting the state of charge of the wireless charging device according to the temperature comprises the following substeps: determining whether the rate of temperature rise exceeds a first preset rate; when the rate of temperature rise exceeds a first predetermined rate And reducing the charging power of the wireless charging device according to the first preset algorithm.
- the first preset algorithm is to adjust a rate or a reduced value of the charging power reduction of the wireless charging device according to the rate of the temperature rise.
- the step of adjusting the charging state of the wireless charging device according to the temperature comprises the following substeps: determining whether the temperature exceeds a first preset temperature; when the temperature exceeds a first preset temperature, according to a second preset
- the algorithm reduces the charging power of the wireless charging device.
- the second preset algorithm is to adjust a rate or a reduced value of the charging power reduction of the wireless charging device according to the difference between the temperature and the first preset temperature.
- the second preset temperature is higher than the first preset temperature, when the temperature exceeds
- the second method of lowering the charging power of the wireless charging device is to reduce the charging power of the wireless charging device to less than 10% of the rated charging power.
- the wireless charging monitoring method further includes the step of controlling the wireless charging device to alert the operator.
- the specific step of controlling the wireless charging device to alert the operator is: providing an alarm module that alerts the operator, the alarm module is disposed at the wireless charging receiving end of the wireless charging device, and is electrically connected to the energy storage device sexual connection; when the charging power is detected to be less than 10% of the rated charging power, The wireless alarm module alerts the operator.
- the wireless charging monitoring method further includes the steps of: acquiring a temperature of the wireless charging device; determining whether the temperature is low The third preset temperature is lower than the second preset temperature at the third preset temperature; when the determination result is YES, the charging power of the wireless charging device is increased.
- the specific step of obtaining the temperature of the wireless charging device is: providing a temperature detecting module for detecting the temperature, setting the temperature detecting module to a heat collecting region in the wireless charging device, and acquiring a signal transmitted by the temperature detecting module.
- the heat accumulation region is a surface of the power device.
- the wireless charging device charges the energy storage device with the rated charging power.
- the wireless charging monitoring method further comprises the step of: detecting wireless charging The charging state of the device sets the value of the first preset temperature or the value of the first preset rate according to the charging state of the wireless charging device.
- the present invention further provides another wireless charging monitoring device for monitoring a process of charging a wireless charging device to an energy storage device, comprising: a temperature detecting module, detecting a temperature of the wireless charging device; a control module, and the temperature detecting module Electrically connecting, according to a signal transmitted by the temperature detecting module, issuing an instruction for adjusting a charging power of the wireless charging device; and executing an module, connecting with the control module, and performing charging state of the wireless charging device according to an instruction of the control module Adjustment.
- control module determines whether the rate of the temperature rise exceeds a first preset rate, and when the rate of the temperature rise exceeds the first preset rate, the charging of the wireless charging device is reduced according to the first preset algorithm. Power instruction.
- the first preset algorithm is to adjust a rate or a reduced value of the charging power reduction of the wireless charging device according to the rate of the temperature rise.
- control module determines whether the temperature exceeds a first preset temperature, and when the determination result is yes, issues an instruction to reduce the charging power of the wireless charging device according to the second preset algorithm.
- the second preset algorithm adjusts according to the difference between the temperature and the first preset temperature.
- control module determines that the temperature exceeds the first preset temperature, further determining whether the temperature exceeds a second preset temperature, and the second preset temperature is greater than the first preset temperature, when determining When the result is YES, an instruction to reduce the charging power of the wireless charging device to 10% or less of the rated power is issued.
- the wireless charging monitoring device further includes an alarm module, and the alarm module alerts the operator when the control module determines that the temperature exceeds the second preset temperature.
- the alarm module is disposed at a wireless charging receiving end of the wireless charging device, and is electrically connected to the energy storage device; the alarm module detects that the charging power of the wireless charging device is reduced to 10% of the rated charging power.
- the operator is alerted as follows.
- the control module acquires the temperature of the wireless charging device by the temperature detecting module, and determines whether the temperature is Below the third preset temperature, the third preset temperature is lower than the second preset temperature, and when the determination result is YES, an instruction to increase the charging power of the wireless charging device is issued.
- the temperature detecting module is disposed in a heat accumulation area in the wireless charging device.
- the heat accumulation region is a surface of the power device.
- control module sends an instruction to charge the rated charging power of the wireless charging device when the temperature does not exceed the first preset temperature or the rate at which the temperature rises does not exceed the first preset rate.
- the wireless charging monitoring device further includes a charging state detecting module, wherein the charging state detecting module detects a charging state of the wireless charging device, and transmits the detection result to the control module, where the control module transmits according to the charging state detecting module.
- the charging state detecting module detects a charging state of the wireless charging device, and transmits the detection result to the control module, where the control module transmits according to the charging state detecting module.
- the wireless charging monitoring device further includes a heat dissipation module connected to the control module; the control module is further configured to: when the temperature is greater than the first preset temperature or the temperature rises, the rate exceeds the first preset
- the heat dissipation command is generated and output to the heat dissipation module, and the heat dissipation module is configured to start heat dissipation of the wireless charging device according to the startup heat dissipation command.
- the invention also provides a wireless charging device, the wireless charging device comprising a wireless transmitting coil, A wireless receiving coil, and a wireless charging monitoring device as previously described.
- the wireless charging monitoring device and method can monitor the temperature during charging of the wireless charging device, and adjust the charging state parameter by adjusting the operating frequency of the wireless charging device when the temperature and the charging state are unbalanced, thereby implementing wireless charging.
- the balance between state and temperature effectively improves the safety of the wireless charging process.
- FIG. 1 is a circuit block diagram of a wireless charging monitoring apparatus of a first preferred embodiment
- FIG. 2 is a flow chart of a first preferred embodiment of the wireless charging monitoring device in the embodiment shown in FIG. 1;
- FIG. 3 is a flow chart of a second preferred embodiment of the wireless charging monitoring device in the embodiment shown in FIG. 1;
- FIG. 4 is a circuit block diagram of a wireless charging monitoring apparatus of a second preferred embodiment
- FIG. 5 is a flow chart of a first preferred embodiment of the wireless charging monitoring device in the embodiment shown in FIG. 4;
- FIG. 6 is a flow chart of a second preferred embodiment of the wireless charging monitoring device in the embodiment shown in FIG. 4;
- FIG. 7 is a schematic diagram of a wireless charging device charging a battery pack of a power tool.
- a wireless charging monitoring device monitors a process in which a wireless charging device charges a stored energy device.
- the wireless charging device 100 includes a wireless charging transmitter 700 and a wireless charging receiver.
- the wireless charging transmitter 700 of the wireless charging device 100 includes an AC-DC module 702 that is coupled to an AC power source, an execution module 750, a control module 740, a temperature detection module 710, and a wireless transmit coil 704 that is coupled to the execution module.
- the wireless charging receiving end of the wireless charging device 100 includes a wireless receiving coil 772 and a charging management module 774 housed in the energy storage device 770.
- the charge management module 774 is coupled to the energy storage unit 776 in the energy storage device 770 to charge and manage it.
- the AC-DC module converts the external AC power into DC power; the execution module 750, the control module 740, and the temperature detection module 710 form a wireless charging monitoring device to monitor the charging process of the wireless charging device 100.
- the energy storage device 770 is a battery pack that can supply power to different power tools.
- the energy storage unit 776 is a battery cell within the battery pack.
- the battery pack is non-removably built into the power tool; in another embodiment, the battery pack is relatively The power tool is detachably mounted to power different power tools.
- the wireless charging device may also not include an AC-DC module.
- the wireless charging device 100 provided by the present invention may alternatively include any of the wireless charging monitoring devices mentioned in FIGS. 1 to 7 and the specification of the present invention and operate any monitoring method corresponding to the wireless charging monitoring device. .
- FIG. 1 is a circuit block diagram of a wireless charging monitoring device in an embodiment, including a temperature detecting module 110, a frequency detecting module 120, a charging state detecting module 130, a control module 140, an executing module 150, and a heat dissipation module 160.
- the temperature detecting module 110 is configured to perform real-time detection of the temperature of the wireless charging device during wireless charging.
- the temperature detecting module 110 is mainly used to detect the temperature of the wireless charging coil and the power device in the wireless charging device 160 in real time and output a temperature value.
- the temperature detecting module 110 includes a temperature sensor mounted on the circuit board of the wireless charging device to test the overall temperature of the circuit board and output the detected temperature T to the control module 140.
- the frequency detecting module 120 is configured to perform real-time detection on the operating frequency of the wireless charging device during wireless charging and output the detected frequency F to the control module 140.
- the charging state detecting module 130 is configured to detect and output the charging state parameter of the wireless charging device during the wireless charging process to the control module 140.
- the charging state detecting module 130 is mainly used to detect and output the charging current and the charging voltage during the wireless charging process.
- the control module 140 is connected to the temperature detecting module 110, the frequency detecting module 120, and the charging state detecting module 130, respectively.
- the control module 140 is configured to determine whether the charging state of the wireless charging device is balanced with the temperature T according to the received charging state parameter and the temperature T. Specifically, the control module 140 determines whether the charging state of the wireless charging device and the temperature are balanced by determining whether the temperature is equal to the preset temperature T1.
- the preset temperature T1 is the temperature allowed by the wireless charging device in the current wireless charging state. Therefore, it can be determined according to the wireless charging device and the wireless charging state, and is not limited to a certain determined value.
- the control module 140 determines that the current state of charge is balanced with the temperature, the control module 140 does not perform an additional control operation, and continues to perform the detection of the state of charge, the temperature T, and the frequency F of the wireless charging device.
- the control module 140 determines that the current state of charge and the temperature T are unbalanced, the control module 140 is based on the state of charge. Parameters and temperature generation frequency adjustment instructions. Specifically, the control module 140 further determines whether the temperature T is less than the preset temperature T1. The control module 140 generates a frequency adjustment command for reducing the frequency F when the temperature T is less than the preset temperature T1. The specific adjustment range needs to be determined according to the charging state parameter value and the current temperature T and the current frequency F. When the control module 140 determines that the temperature T is greater than the preset temperature T1, it further determines whether the temperature T is greater than the threshold temperature T2, that is, whether the difference between the temperature T and the preset temperature T1 is greater than a preset amplitude.
- control module 140 determines that the temperature T is greater than the threshold temperature T2, it generates a shutdown command to the wireless charging device, and controls the wireless charging device to stop charging.
- the control module 140 determines that the temperature T is less than the threshold temperature T2 and greater than the preset temperature T1, the control module 140 generates a frequency adjustment command for increasing the frequency F, and generates a startup heat dissipation command.
- the execution module 150 is connected to the control module 140 for receiving the frequency adjustment command output by the control module 140, so as to adjust the operating frequency of the wireless charging device to adjust the charging state parameter, such as the charging current, so that the charging state of the wireless charging device Balanced with temperature T to ensure that wireless charging can proceed normally, improving the security of the wireless charging process.
- the heat dissipation module 160 is connected to the control module 140 for receiving an open heat dissipation command of the output thereof, and is configured to turn on heat dissipation under the control of the command to reduce the temperature of the wireless charging device and promote the charging state between the wireless charging device and the temperature T. balance.
- the wireless charging monitoring device can monitor the temperature during charging of the wireless charging device, and adjust the charging state parameter by adjusting the operating frequency of the wireless charging device when the temperature and the charging state are unbalanced, thereby implementing the wireless charging state and The balance between temperatures effectively improves the safety of the wireless charging process. Moreover, in the process of adjusting the charging state of the wireless charging device by adjusting the frequency, it can adjust the output power of the wireless charging device, but does not reduce the efficiency of the wireless charging process, thereby making the wireless charging process The charging efficiency is high.
- the present invention also provides a wireless charging device comprising a wireless charging coil, and further comprising the wireless charging monitoring device of the previous embodiment.
- the wireless charging device can be a wireless charging receiver or a wireless charging transmitter.
- the above wireless charging device can improve the safety of the charging process through the wireless charging monitoring device, and has high charging efficiency.
- the invention also provides a wireless charging monitoring method for monitoring a charging process of a wireless charging device.
- the flow of the wireless charging monitoring method is as shown in FIG. 2, and includes the following steps.
- the temperature detection process mainly detects the temperature of the wireless charging coil and the power device in the wireless charging device.
- the temperature of the entire board is tested and the temperature T is output by mounting the temperature sensor on the circuit board of the wireless charging device.
- steps S210 and S220 are performed synchronously, and are repeatedly performed throughout the wireless charging process.
- Step S230 and S210, S220 are both performed synchronously, and are also repeatedly executed throughout the wireless charging process.
- charging state parameters such as charging current and charging voltage are mainly detected.
- Whether the state of charge and the temperature T are balanced are determined based on the detected state of charge parameter and the temperature. Specifically, it is determined whether the temperature T is equal to the preset temperature T1. If they are equal, the two are balanced. After the frequency F is not adjusted, the process returns to the steps S210, S220, and S230. If the two are not balanced, step S250 is performed.
- the frequency adjustment command is used to adjust the operating frequency of the wireless charging device.
- the frequency F is adjusted according to the generated frequency adjustment command, thereby adjusting the charging state parameter, so that the charging state of the wireless charging device is balanced with the temperature to ensure safe and stable wireless charging process.
- the wireless charging monitoring method can monitor the temperature during charging of the wireless charging device, and adjust the charging state parameter by adjusting the working frequency of the wireless charging device when the temperature and the charging state are unbalanced, thereby implementing the wireless charging state and The balance between temperatures effectively improves the safety of the wireless charging process. Moreover, in the process of adjusting the charging state of the wireless charging device by adjusting the frequency, it can adjust the output power of the wireless charging device, but does not reduce the efficiency of the wireless charging process, thereby making the wireless charging process The charging efficiency is high.
- FIG. 3 is a flow chart of a wireless charging monitoring method in another embodiment, which includes the following steps.
- step S350 it is determined whether the temperature T is equal to the preset temperature T1. If they are equal, the two are balanced. After the frequency F is not adjusted, the process returns to the steps S310, S320, and S330. If the two are not balanced, step S350 is performed.
- S350 Determine whether the temperature is less than a preset temperature.
- step 365 It is determined whether the temperature T is less than the preset temperature T1, and if so, step 365 is performed. If the temperature T is greater than the preset temperature T1, step S355 is performed.
- the threshold temperature T2 is the maximum allowable temperature of the wireless charging device during charging. When the temperature T is greater than the threshold temperature T2, step S370 is performed. If the temperature T is less than or equal to the threshold temperature T2, step S360 is performed.
- the startup heat dissipation command is used to control the heat dissipation module to be turned on to reduce the temperature of the wireless charging device, promote the balance between the charging state and the temperature T during the wireless charging process, and improve the safety and efficiency in the wireless charging process.
- a frequency adjustment command for generating an operating frequency for increasing the wireless charging device is processed differently depending on the specific temperature. Specifically, when the temperature difference between the temperature T and the preset temperature T1 is within a predetermined small range, the increase is small. When the temperature difference between the temperature T and the preset temperature T1 is large, the frequency increase range is correspondingly adjusted to achieve a balance between the wireless state of charge and the temperature T as soon as possible.
- the output power is increased by decreasing the frequency F to increase the charging rate.
- a shutdown command is generated to control the wireless charging device to stop charging, Forming protection for the wireless charging device.
- the operating frequency of the wireless charging device is adjusted according to the received frequency adjustment command. If the heat dissipation command is received, the heat dissipation module is controlled to turn on the heat dissipation and the heat dissipation module is turned off after the temperature T and the state of charge are balanced to save power. After receiving the shutdown command, the wireless charging device is controlled to stop charging to form protection for the wireless charging device.
- FIG. 4 is a circuit block diagram of a wireless charging monitoring apparatus in a second preferred embodiment, including a temperature detecting module 410, a control module 440, and an executing module 450.
- the temperature detecting module 410 is configured to perform real-time detection on the temperature of the wireless charging device during wireless charging, and output the detected temperature T to the control module 440.
- the temperature detecting module 410 is disposed in a heat accumulating area in the wireless charging device to enable the most realistic reaction of the temperature of the wireless charging device.
- the heat accumulation area is usually a region where the heat-generating device is concentrated and the heat dissipation condition is poor.
- the devices with severe heat generation are mainly high-frequency switching devices, power devices that flow through high current or high voltage.
- the temperature detecting module 410 is disposed on a surface of the power device.
- the temperature detecting module 110 may be disposed on the surface of the heat sink of the power device, or may be disposed on the housing of the wireless charging device where the heat accumulation region is located, or on the circuit board on which the device with severe heat generation is installed.
- the position where the temperature detecting module 110 is disposed in the embodiment shown in FIG. 1 may be the same as or different from the position set by the temperature detecting module 410 in the embodiment shown in FIG.
- the temperature allowed on the surface of the power device is about 90 ° C to 100 ° C
- the ambient temperature in the radiation range is generally about 70 ° C
- the temperature of the casing at the corresponding position is also about 70 ° C.
- the control module 440 is connected to the temperature detecting module 410, receives the signal transmitted by the temperature detecting module 410, and sends a control signal to the executing module 450 according to the received temperature signal to control the charging state of the wireless charging device.
- the control module 440 determines, according to the signal transmitted by the temperature detecting module 410, whether the rate of temperature rise of the wireless charging device exceeds a first preset rate. When the determination result is yes, the first preset is issued according to the first preset. The algorithm reduces the command of the charging power of the wireless charging device; conversely, when the determination result is no, the wireless charging device issues an instruction to charge at the rated power. In other optional embodiments, when the determination result is no, the current charging power of the wireless charging device can be maintained without increasing the charging power or reducing the charging power.
- the first preset algorithm may be to reduce the charging power of the wireless charging device To a certain preset charging power, for example, to 80% or 60% of the rated charging power.
- the first preset algorithm may also adjust the rate of decrease or decrease of the charging power of the wireless charging device according to the rate of temperature rise. For example, if the rate of temperature rise is high, the rate of decrease of the charging power is high, or the charging power is lowered. The amplitude is large, or the charging power is reduced to a relatively small value; the rate of temperature rise is low, the rate of charging power reduction is small, or the charging power is reduced by a small amount, or the charging power is reduced to a relatively high value. .
- control module 440 determines whether the temperature of the wireless charging device exceeds the first preset temperature (T1) according to the signal transmitted by the temperature detecting module 410, and when the determination result is yes, issues the second pre-
- the algorithm is configured to reduce the charging power of the wireless charging device; conversely, when the determination result is no, the wireless charging device issues an instruction to charge at the rated power.
- the determination result when the determination result is no, the current charging power of the wireless charging device can be maintained without increasing the charging power or reducing the charging power.
- the second preset algorithm may be to reduce the charging power of the wireless charging device to a certain preset charging power, for example, to 70% or 60% or 50% of the rated charging power.
- the second preset algorithm may also be configured to adjust a rate or a reduced value of the charging power reduction of the wireless charging device according to a difference between the temperature of the wireless charging device and the first preset temperature, for example, when the temperature exceeds the first preset temperature, The charging power of the wireless charging device is reduced at a large rate, or the charging power is reduced by a large amount, or the charging power is reduced to a relatively small value; when the temperature exceeds the first preset temperature, the charging power is compared. The small rate is reduced, or the magnitude of the charging power reduction is small, or the charging power is reduced to a relatively high value.
- the execution module 450 is connected to the control module 440 for receiving the command output by the control module 440, thereby adjusting the charging state of the wireless charging device, ensuring that the wireless charging can be performed normally, and improving the security of the wireless charging process.
- the execution module 450 increases, maintains or reduces the charging power of the wireless charging device by adjusting the charging current or the charging voltage of the wireless charging device.
- the execution module 450 can adjust the charging current of the wireless charging device by adjusting the operating frequency of the wireless charging device.
- the operating frequency of the wireless charging device is the oscillation frequency of the wireless transmitting coil and the wireless receiving coil.
- the wireless charging device when the resonant frequency of the wireless charging device is 85 kHz, when the operating frequency of the wireless charging device is 85 kHz, the wireless charging device has the highest operating efficiency and the maximum charging power.
- the operating frequency of the wireless charging device is away from the resonant frequency of 85 KHz.
- the direction adjustment is such that the operating frequency of the wireless charging device is much greater or much less than the resonant frequency of 85 KHz.
- the operating frequency of the wireless charging device is adjusted toward a direction close to 85 KHz, that is, the operating frequency of the wireless charging device is approximately equal to the resonant frequency of 85 KHz.
- the execution module 450 can control the wireless charging device to reduce the charging current by means of pulse charging.
- Pulse charging is to charge the energy storage device with a non-continuous pulse current. Since the charging current is not continuously output during the pulse charging, the average value of the charging current can be greatly reduced.
- the PWM signal is taken as an example for explanation.
- the pulse current is not a pulse with a duty ratio other than 100% in the PWM signal, but means that the device generating the PWM intermittently generates the PWM signal.
- the wireless charging monitoring device may further include a heat dissipation module 460.
- the heat dissipation module 460 is connected to the control module 440 for receiving an open heat dissipation command of the output thereof, and is turned on under the control of the command to reduce the temperature of the wireless charging device.
- the control module 440 determines that the temperature of the wireless charging device exceeds the first preset temperature T1, an instruction to turn on the heat dissipation is issued.
- control module 440 when the control module 440 determines that the temperature of the wireless charging device exceeds the first preset temperature, it further determines whether the temperature of the wireless charging device exceeds the second preset temperature T2. The second preset temperature is greater than the first preset temperature.
- the control module 440 issues an instruction to reduce the charging power of the wireless charging device to less than 10% of the rated charging power, and the execution module 450 reduces the charging power of the wireless charging device to the rated according to the instruction of the control module 440. 10% or less of the charging power.
- the command to reduce the charging power of the wireless charging device to less than 10% of the rated charging power includes controlling the wireless charging device to stop outputting the charging power and reducing the charging power to 8% or 5% of the rated charging power, that is, the wireless charging device stops.
- the charging process for the energy storage device is the second preset temperature T2 is the maximum temperature allowed by the wireless charging device. Exceeding this temperature will cause safety problems, such as temperature rise that does not meet the safety requirements, damage of the device, and the like.
- the control module 440 continuously detects the current temperature of the wireless charging device through the temperature detecting module 410. And determining whether the current temperature of the wireless charging device is lower than the third preset temperature T3. When the determination result is yes, issuing an instruction to increase the charging power of the wireless charging device, that is, returning the charging power to the rated charging power or restarting the normal charging. .
- Execution module 450 according to control The instructions of module 440 increase the charging power of the wireless charging device.
- Increasing the charging power of the wireless charging device includes switching from a low charging power state to a high charging power state, and also includes switching from a non-charging state to a starting charging state.
- the third preset temperature T3 is lower than the second preset temperature T2 by a preset value.
- the third preset temperature T3 is 5 to 15 ° C lower than the second preset temperature T2. More preferably, the third preset temperature T3 is 5 to 10 ° C lower than the second preset temperature T2.
- the third preset temperature T3 is less than or equal to the first preset temperature T1.
- the wireless charging monitoring device may further include an alarm module 470.
- the control module 440 issues an instruction to reduce the charging power of the wireless charging device to less than 10% of the rated power
- the alarm module alerts the operator.
- the way of the alarm includes but is not limited to the following modes, the indicator light flashes an alarm, the audible alarm, and the indicator light with a specific identifier illuminate.
- the alarm module 470 can be disposed at the wireless charging transmitter of the wireless charging device or at the wireless charging receiving end. Regardless of whether the alarm module 470 is disposed at the wireless charging transmitter or the wireless charging receiver, the alarm module 470 can directly or indirectly draw power from the AC power source for operation as long as the wireless charging device has an output of charging power. However, when the alarm module 470 is set at the wireless charging receiving end, and the wireless charging device no longer outputs the charging power, the wireless charging receiving end is not connected to the AC power source, and cannot be powered from the AC power source for its operation. Therefore, when the alarm module 470 is disposed at the wireless charging receiving end of the wireless charging device, preferably, the alarm module 470 is electrically connected to the energy storage device to take power from the energy storage device for operation.
- FIG. 5 is a flow chart of a first preferred embodiment of the wireless charging monitoring apparatus of the embodiment shown in FIG. 4, including the following steps.
- S510 Acquire a temperature of the wireless charging device.
- the specific way of obtaining the temperature is to electrically connect with the temperature detecting module, obtain the signal transmitted by the temperature detecting module, and identify the signal.
- the position set by the temperature detection module is as described above.
- step S530 Determine whether the temperature of the wireless charging device exceeds a first preset temperature. That is, it is determined whether the temperature of the wireless charging device is greater than or equal to the first preset temperature.
- the process proceeds to step S550.
- the process proceeds to step S520.
- the process may return to step S510. The return to step S510 means that the current charging power of the wireless charging device is maintained, and no active change is made.
- step S520 Issue an instruction that the wireless charging device is charged at a rated charging power.
- the execution module controls the wireless charging device to charge the energy storage device at the rated charging power.
- the process may proceed to step S510, or may be the predetermined time period before proceeding to S510.
- step S550 Send an instruction to reduce the charging power of the wireless charging device according to the second preset algorithm. After receiving the instruction, the execution module reduces the charging power of the wireless charging device according to the second preset algorithm.
- the second preset algorithm is as described above. In an optional other embodiment, step S550 may proceed to step S570, or may directly return to step S510.
- step S570 generating a startup heat dissipation command.
- the startup heat dissipation command is used to control the heat dissipation module to be turned on for heat dissipation to lower the temperature of the wireless charging device.
- the process may proceed to step S510 or a preset length of time to proceed to step S510.
- FIG. 6 is a flow chart of a second preferred embodiment of the wireless charging monitoring device of the embodiment shown in FIG. 4, including the following steps.
- step S612 Determine whether the temperature of the wireless charging device exceeds a first preset temperature. That is, it is determined whether the temperature of the wireless charging device is greater than or equal to the first preset temperature.
- the process proceeds to step S614.
- the process proceeds to step S613.
- the process may return to step S610. The meaning of returning to step S610 is to maintain the current charging power of the wireless charging device unchanged.
- step S613 an instruction to charge the wireless charging device at a rated charging power is issued. After receiving the instruction, the execution module controls the wireless charging device to charge the energy storage device at the rated charging power. After the end of step S613, the process may proceed to step S610 immediately, or may be the predetermined time period before proceeding to S610.
- step S614. Determine whether the temperature of the wireless charging device exceeds a second preset temperature. That is, it is determined whether the temperature of the wireless charging device is greater than or equal to a second preset temperature, and the second preset temperature is greater than the first preset temperature.
- the process proceeds to step S620.
- the process proceeds to step S616.
- step S616 Issue an instruction to reduce the charging power of the wireless charging device according to the second preset algorithm. After receiving the instruction, the execution module reduces the charging power of the wireless charging device according to the second preset algorithm.
- the second preset algorithm is as described above.
- step S616 may be followed by step S618, or may directly return to step S610.
- step S618, generating a startup heat dissipation command.
- the startup heat dissipation command is used to control the heat dissipation module to be turned on for heat dissipation to lower the temperature of the wireless charging device.
- the process may proceed to step S610 or a preset length of time and then proceed to step S610.
- step S620 Generate an instruction to reduce the charging power of the wireless charging device to below a second preset power.
- the execution module reduces the charging power of the wireless charging device to below the second preset power.
- the second preset power is less than 10% of the rated power of the wireless charging device. More preferably, the second preset power is the charging power when the wireless charging device stops charging.
- the start alarm command is used to control the alarm module to alert the operator.
- the command to initiate an alarm can be generated by the control module or by the alarm module itself.
- the alarm module is installed on the wireless charging transmitter or the wireless charging receiver of the wireless charging device, the command to start the alarm can be generated by the control module.
- the command to start the alarm is generated by the alarm module itself.
- the alarm module detects that the charging power of the wireless charging device is less than 10% of the rated power, it may determine that the temperature of the wireless charging device exceeds the second preset temperature, and then initiate an alarm.
- step S622 After step S622, the process proceeds to step S624.
- S624 to S628 The purpose of S624 to S628 is to detect in real time whether the temperature of the wireless charging device is restored from the high temperature to the normal temperature, and once it returns to the normal temperature, the state of the wireless charging device is switched from the state of no charging to the state of normal charging.
- the specific steps are as follows:
- step S624. Acquire a temperature of the wireless charging device.
- the way to obtain the temperature of the wireless charging device is to receive the signal of the temperature detecting module and identify it. The position set by the temperature detection module is as described above. Then it proceeds to step S626.
- S626 Determine whether the temperature of the wireless charging device is lower than a third preset temperature T3.
- the relationship between the third preset temperature T3 and the first preset temperature T1 and the second preset temperature T2 is as described above.
- the judgment result is yes, It indicates that the temperature of the wireless charging device has recovered from the high temperature to the normal temperature, and the wireless charging device can resume normal charging, and the process proceeds to step S626.
- the result of the determination is NO, it indicates that the temperature of the wireless charging device is still in a high temperature state, and normal charging cannot be resumed, and the process proceeds to step S624.
- step S628 generating an instruction to increase the charging power of the wireless charging device.
- the command is used to control the execution module to restore the state in which the wireless charging device is normally charged or to be charged at the rated charging power. Then, the process proceeds to step S610.
- step S622 the process proceeds to step S610, and there is no step S624 to step S628.
- step S610 the process proceeds to step S610, and there is no step S624 to step S628.
- step S624 the process proceeds to step S610, and there is no step S624 to step S628.
- step S628 the process proceeds to step S610, and there is no step S624 to step S628.
- step S622 between step S622 and step S624, a step of initiating heat dissipation is added.
- the content of this step is the same as S618.
- the other steps included in this embodiment are the same as those of the second preferred embodiment.
- the present invention also provides a fifth preferred embodiment.
- This embodiment is basically the same as the preferred embodiment shown in FIG. The difference is that, in the present embodiment, step S530 in Fig. 5 is replaced by step S530', and step S550 in Fig. 5 is replaced by step S550'.
- Step S530' is to determine whether the rate of temperature rise of the wireless charging device exceeds a first preset rate.
- Step S550' is an instruction to reduce the charging power of the wireless charging device according to the first preset algorithm.
- the present invention also provides a sixth preferred embodiment.
- This embodiment is basically the same as the preferred embodiment shown in FIG. 6. The difference is that, in the present embodiment, step S612 in FIG. 6 is replaced by step S612', step S614 in FIG. 6 is replaced by step S614', step S616 in FIG. 6 is replaced by step S616', and step S626' is replaced by step S626'.
- Step S612' is to determine whether the rate of temperature rise of the wireless charging device exceeds the first preset rate.
- Step S616' is an instruction to reduce the charging power of the wireless charging device according to the first preset algorithm.
- Step S614' is to determine whether the rate of temperature rise of the wireless charging device exceeds a second predetermined rate.
- Step S626' is to determine whether the rate of temperature rise of the wireless charging device is lower than a third preset rate, and the third preset rate is lower than the second preset rate.
- the first preset temperature T1 is a preferred temperature allowed by the wireless charging device in the current wireless charging state, at which the charging power of the wireless charging device and the temperature rise of the wireless charging device are reached.
- wireless charging monitoring device further package Includes a charge status detection module.
- the charging state detecting module detects the charging state of the wireless charging device, and transmits the detection result to the control module, and the control module sets the value of the first preset temperature T1 according to the result transmitted by the charging state detecting module.
- control module can also adjust at least one of the second preset temperature T2 and the third preset temperature T3 according to the charging state of the wireless charging device.
- first preset rate, the second preset rate, and the third preset rate may also be adjusted according to the current charging state.
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Abstract
本发明涉及一种无线充电监控方法,监控无线充电装置对储能装置充电的过程,包括以下步骤:获取所述无线充电装置的温度;根据所述温度调整无线充电装置的充电状态。上述无线充电监控方法有效提高了无线充电过程的安全性。本发明还涉及一种无线充电装置以及一种无线充电监控装置。
Description
本发明涉及无线充电技术领域,特别是涉及一种无线充电监控装置,还涉及一种无线充电监控方法,以及一种无线充电装置。
传统的无线充电中,由于充电功率相对较小,发热量较低,并不会对其温度进行监管。因此,当无线充电功率较大时,产热量大,无线充电装置中的温升较快,容易造成器件损害,甚至引发安全事故,不能确保无线充电过程的安全性。
发明内容
基于此,有必要针对上述问题,提供一种能够提高无线充电安全性的无线充电监控装置。
一种无线充电监控装置,用于对无线充电装置的充电过程进行监控,包括:温度检测模块,用于实时检测所述无线充电装置的温度;频率检测模块,用于实时检测所述无线充电装置的工作频率;充电状态检测模块,用于实时检测所述无线充电装置的充电状态参数;控制模块,分别与所述温度检测模块、所述频率检测模块以及所述充电状态检测模块连接,用于根据所述充电状态参数以及所述温度判断所述无线充电装置的充电状态是否与所述温度相平衡;所述控制模块还用于在判断出所述无线充电装置的充电状态与所述温度不平衡时,根据所述充电状态参数以及所述温度生成频率调整指令;以及执行模块,与所述控制模块连接,用于根据所述频率调整指令对所述无线充电装置的工作频率进行调整从而实现对所述充电状态参数的调整,使得所述无线充电装置的充电状态与所述温度相平衡。
在其中一个实施例中,所述温度检测模块设置于所述无线充电装置的电路板上以实时检测所述电路板的温度。
在其中一个实施例中,所述控制模块判断所述无线充电装置的充电状态是否与所述温度相平衡是通过判断所述温度是否等于预设温度,若是则表示所述充电状态与所述温度相平衡;若否则表示所述充电状态与所述温度不平衡。
在其中一个实施例中,所述制模块在判断出所述无线充电装置的充电状态与所述温度不平衡时,根据所述充电状态参数以及所述温度生成频率调整指令具体包括:所述控制模块还用于判断所述温度是否小于所述预设温度,并在所述温度小于预设值时生成用于减小所述频率的频率调整指令;所述控制模块还用于在所述温度大于所述预设温度时生成用于增大所述频率的频率调整指令。
在其中一个实施例中,还包括散热模块,与所述控制模块连接;所述控制模块还用于在所述温度大于所述预设温度时生成启动散热指令并输出给所述散热模块;所述散热模块用于根据所述启动散热指令启动对所述无线充电装置进行散热。
在其中一个实施例中,所述控制模块还用于判断所述温度是否大于阈值温度,并在所述温度大于阈值温度时生成关断指令给所述无线充电装置,控制所述无线充电装置停止充电。
还提供一种无线充电装置。
一种无线充电装置,包括无线充电线圈,还包括前述任一实施例中的无线充电监控装置。
还提供一种无线充电监控方法。
一种无线充电监控方法,用于对无线充电装置的充电过程进行监控,包括以下步骤:实时检测所述无线充电装置的温度;实时检测所述无线充电装置的工作频率;实时检测所述无线充电装置的充电状态参数;根据所述充电状态参数以及所述温度判断所述无线充电状态是否与所述温度相平衡;若否,则根据所述充电状态参数以及所述温度生成频率调整指令;根据所述频率调整指令对所述频率进行调整从而实现对所述充电状态参数的调整,使得所述无线充电装置的充电状态与所述温度相平衡。
在其中一个实施例中,所述根据所述充电状态参数以及所述温度判断所述无线充电状态是否与所述温度相平衡的步骤具体是:判断所述温度是否等于所
述预设温度,若是则所述无线充电状态与所述温度相平衡。
在其中一个实施例中,所述根据所述充电状态参数以及所述温度判断所述无线充电状态是否与所述温度相平衡的步骤中,若判断出所述无线充电状态与所述温度不平衡,则执行步骤:判断所述温度是否小于所述预设温度;若是,则生成用于减小所述频率的频率调整指令;若所述温度大于所述预设温度,则生成用于增大所述频率的频率调整指令。
本发明还提供另外一种无线充电监控方法,监控无线充电装置对储能装置充电的过程,包括以下步骤:获取所述无线充电装置的温度;根据所述温度调整无线充电装置的充电状态。
优选的,根据所述温度调整无线充电装置的充电状态的步骤包括以下子步骤:判断所述温度上升的速率是否超过第一预设速率;当所述温度上升的速率超过第一预设速率时,按照第一预设算法降低无线充电装置的充电功率。
优选的,所述第一预设算法为根据所述温度上升的速率调整无线充电装置的充电功率降低的速率或降低的数值。
优选的,根据所述温度调整无线充电装置的充电状态的步骤包括以下子步骤:判断所述温度是否超过第一预设温度;当所述温度超过第一预设温度时,按照第二预设算法降低无线充电装置的充电功率。
优选的,所述第二预设算法为根据所述温度与第一预设温度的差值调整无线充电装置的充电功率降低的速率或降低的数值。
优选的,当所述温度超过第一预设温度时,进一步判断所述温度是否超过第二预设温度,所述第二预设温度高于所述第一预设温度,当所述温度超过第二预设温度时,降低无线充电装置的充电功率的方法为将所述无线充电装置的充电功率降低为额定充电功率的10%以下。
优选的,当所述温度超过第二预设温度时,所述无线充电监控方法还进一步包括以下步骤:控制所述无线充电装置向操作者报警。
优选的,控制所述无线充电装置向操作者报警的具体步骤为:提供一个向操作者报警的报警模块,所述报警模块设置在无线充电装置的无线充电接收端,与所述储能装置电性连接;当检测到充电功率为额定充电功率的10%以下时,
所述无线报警模块向操作者报警。
优选的,将所述无线充电装置的充电功率降低为额定充电功率的10%以下时,所述无线充电监控方法还进一步包括以下步骤:获取所述无线充电装置的温度;判断所述温度是否低于第三预设温度,所述第三预设温度低于所述第二预设温度;当判断结果为是时,增大所述无线充电装置的充电功率。
优选的,获取所述无线充电装置的温度的具体步骤为:提供检测温度的温度检测模块,将温度检测模块设置在无线充电装置内的热量聚集区域,获取温度检测模块传递的信号。
优选的,所述的热量聚集区域为功率器件的表面。
优选的,当所述温度没有超过所述第一预设温度或所述温度上升的速率没有超过第一预设速率时,所述无线充电装置以额定充电功率对储能装置充电。
优选的,在判断所述温度是否超过第一预设温度的步骤或判断所述温度上升的速率是否超过第一预设速率的步骤之前,所述无线充电监控方法进一步包括以下步骤:检测无线充电装置的充电状态,根据无线充电装置的充电状态设置所述第一预设温度的数值或第一预设速率的数值。
本发明还提供另外一种无线充电监控装置,对无线充电装置向储能装置充电的过程进行监控,包括:温度检测模块,检测所述无线充电装置的温度;控制模块,与所述温度检测模块电性连接,根据温度检测模块传递的信号,发出调整无线充电装置的充电功率的指令;执行模块,与所述控制模块连接,根据所述控制模块的指令对所述无线充电装置的充电状态进行调整。
优选的,所述控制模块判断所述温度上升的速率是否超过第一预设速率,当所述温度上升的速率超过第一预设速率时,发出按照第一预设算法降低无线充电装置的充电功率的指令。
优选的,所述第一预设算法为根据所述温度上升的速率调整无线充电装置的充电功率降低的速率或降低的数值。
优选的,所述控制模块判断所述温度是否超过第一预设温度,当判断结果为是时,发出按照第二预设算法降低无线充电装置的充电功率的指令。
优选的,所述第二预设算法为根据所述温度与第一预设温度的差值调整无
线充电装置的充电功率降低的速率或降低的数值。
优选的,所述控制模块判断所述温度超过第一预设温度时,进一步判断所述温度是否超过第二预设温度,所述第二预设温度大于所述第一预设温度,当判断结果为是时,发出将所述无线充电装置的充电功率降低到额定功率的10%以下的指令。
优选的,所述无线充电监控装置还进一步包括报警模块,当所述控制模块判断所述温度超过第二预设温度时,所述报警模块向操作者报警。
优选的,所述报警模块设置在无线充电装置的无线充电接收端,与所述储能装置电性连接;所述报警模块检测到所述无线充电装置的充电功率降低到额定充电功率的10%以下时向操作者报警。
优选的,发出将所述无线充电装置的充电功率降低为额定充电功率的10%以下的指令后,所述控制模块通过所述温度检测模块获取所述无线充电装置的温度,判断所述温度是否低于第三预设温度,所述第三预设温度低于所述第二预设温度,当判断结果为是时,发出增大所述无线充电装置的充电功率的指令。
优选的,所述温度检测模块设置在无线充电装置内的热量聚集区域。
优选的,所述的热量聚集区域为功率器件的表面。
优选的,所述控制模块判断所述温度没有超过所述第一预设温度或所述温度上升的速率没有超过第一预设速率时,发出以无线充电装置的额定充电功率充电的指令。
优选的,所述无线充电监控装置还包括充电状态检测模块,所述充电状态检测模块检测无线充电装置的充电状态,并将检测结果传递给控制模块,所述控制模块根据充电状态检测模块传递的结果设置所述第一预设温度或第一预设速率的数值。
优选的,无线充电监控装置还包括散热模块,与所述控制模块连接;所述控制模块还用于在所述温度大于所述第一预设温度或所述温度上升的速率超过第一预设速率时生成启动散热指令并输出给所述散热模块;所述散热模块用于根据所述启动散热指令启动对所述无线充电装置进行散热。
本发明还提供一种无线充电装置,所述无线充电装置包括无线发射线圈、
无线接收线圈、以及如前所述的无线充电监控装置。
上述无线充电监控装置以及方法,能够对无线充电装置充电过程中的温度进行监控,并在温度与充电状态不平衡时通过调整无线充电装置的工作频率来对充电状态参数进行调整,进而实现无线充电状态与温度之间的平衡,有效提高了无线充电过程的安全性。
图1为第一较佳实施例的无线充电监控装置的电路框图;
图2为图1所示实施例中的无线充电监控装置的第一较佳实施例的流程图;
图3为图1所示实施例中的无线充电监控装置的第二较佳实施例的流程图;
图4为第二较佳实施例的无线充电监控装置的电路框图;
图5为图4所示实施例中的无线充电监控装置的第一较佳实施例的流程图;
图6为图4所示实施例中的无线充电监控装置的第二较佳实施例的流程图;
图7为无线充电装置为电动工具的电池包充电的示意图。
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
一种无线充电监控装置,监控无线充电装置对储能装置充电的过程。典型地,如图7所示,无线充电装置100包括无线充电发射端700和无线充电接收端。无线充电装置100的无线充电发射端700包括与AC电源连接的AC-DC模块702、执行模块750、控制模块740、温度检测模块710、以及与执行模块连接的无线发射线圈704。无线充电装置100的无线充电接收端包括收容在储能装置770内的无线接收线圈772、充电管理模块774。充电管理模块774与储能装置770中的储能单元776连接,对其进行充电和管理。其中,AC-DC模块将外接的交流电转换为直流电;执行模块750、控制模块740、温度检测模块710共同组成无线充电监控装置,对无线充电装置100的充电过程进行监控。本实施例中,储能装置770是可为不同电动工具供电的电池包。储能单元776为电池包内的电芯。在一种实施例中,电池包不可拆卸地内置在电动工具中;在另一种实施例中,电池包相对
电动工具可拆卸地安装,从而可为不同的电动工具供电。在其他可选的实施例中,无线充电装置也可不包含AC-DC模块。本发明提供的无线充电装置100可择一地包括图1至图7以及本发明的说明书中提到的任意一种无线充电监控装置并运行任意一种与该无线充电监控装置相对应的监控方法。
以下结合图1至图6对其他多种可能的无线充电监控装置及其监控方法进行介绍。
图1为一实施例中的无线充电监控装置的电路框图,包括温度检测模块110、频率检测模块120、充电状态检测模块130、控制模块140、执行模块150以及散热模块160。
温度检测模块110用于对无线充电装置在无线充电过程中的温度进行实时检测。温度检测模块110主要用于对无线充电装置160中的无线充电线圈以及功率器件的温度进行实时检测并输出温度值。在本实施例中,温度检测模块110包括温度传感器,其安装于无线充电装置的电路板上以测试电路板整体温度并将检测得到的温度T输出给控制模块140。
频率检测模块120用于对无线充电装置在无线充电过程中的工作频率进行实时检测并将检测到的频率F输出给控制模块140。
充电状态检测模块130用于对无线充电装置在无线充电过程中的充电状态参数进行检测并输出给控制模块140。在本实施例中,充电状态检测模块130主要用于对无线充电过程中的充电电流以及充电电压进行检测并输出。
控制模块140分别与温度检测模块110、频率检测模块120以及充电状态检测模块130连接。控制模块140用于根据接收到的充电状态参数以及温度T判断无线充电装置的充电状态是否与温度T相平衡。具体地,控制模块140判断无线充电装置的充电状态与温度是否平衡是通过判断温度是否等于预设温度T1来实现的。预设温度T1为无线充电装置在当前的无线充电状态下所允许的温度。因此,其可以根据无线充电装置以及无线充电状态进行确定,并不限于某一个确定的值。控制模块140在判断出当前的充电状态与温度相平衡时,不会进行额外的控制操作,继续执行对无线充电装置的充电状态、温度T以及频率F进行检测。
控制模块140在判断出当前的充电状态与温度T不平衡时,会根据充电状态
参数以及温度生成频率调整指令。具体地,控制模块140会进一步判断温度T是否小于预设温度T1。控制模块140在温度T小于预设温度T1时,生成用于减小频率F的频率调整指令,具体调整幅度需要根据充电状态参数值以及当前的温度T以及当前的频率F进行确定。控制模块140还会在判断出温度T大于预设温度T1时,还会继续判断温度T是否大于阈值温度T2,即温度T与预设温度T1的差值是否大于预设幅度。控制模块140在判断出温度T大于阈值温度T2时,会生成关断指令给无线充电装置,控制无线充电装置停止充电。控制模块140在判断出温度T小于阈值温度T2且大于预设温度T1时,生成用于增大频率F的频率调整指令,并生成启动散热指令。
执行模块150与控制模块140连接,用于接收控制模块140输出的频率调整指令,从而对无线充电装置的工作频率进行调整以实现对充电状态参数如充电电流的调整,使得无线充电装置的充电状态与温度T相平衡,确保无线充电能够正常进行,提高了无线充电过程的安全性。
散热模块160与控制模块140连接,用于接收其输出的开启散热指令,并在该指令的控制下开启散热,以降低无线充电装置的温度,促进无线充电装置的充电状态与温度T之间的平衡。
上述无线充电监控装置,能够对无线充电装置充电过程中的温度进行监控,并在温度与充电状态不平衡时通过调整无线充电装置的工作频率来对充电状态参数进行调整,进而实现无线充电状态与温度之间的平衡,有效提高了无线充电过程的安全性。并且,在通过调整频率来实现对无线充电装置的充电状态进行调整的过程中,其可以对无线充电装置的输出功率进行调整,但是并不会降低无线充电过程的效率,从而使得无线充电过程的充电效率较高。
本发明还提供了一种无线充电装置,包括无线充电线圈,还包括前述实施例中的无线充电监控装置。无线充电装置可以为无线充电接收端或者无线充电发射端。上述无线充电装置通过无线充电监控装置可以提高充电过程的安全性,且具有较高的充电效率。
本发明还提供了一种无线充电监控方法,用于对无线充电装置的充电过程进行监控。该无线充电监控方法的流程如图2所示,包括以下步骤。
S210,实时检测无线充电装置的温度。
温度检测过程中主要是对无线充电装置中的无线充电线圈以及功率器件的温度进行检测。在本实施例中,通过将温度传感器安装于无线充电装置的电路板上以测试电路板整体温度并输出温度T。
S220,实时检测无线充电装置的工作频率。
检测工作频率并输出频率F。在本实施例中,步骤S210和S220为同步进行,且在整个无线充电过程都会重复执行。
S230,实时检测无线充电装置的充电状态参数。
步骤S230与S210、S220均为同步进行,且同样在整个无线充电过程都会重复执行。在本实施例中,主要对充电状态参数如充电电流以及充电电压进行检测。
S240,判断无线充电状态是否与温度相平衡。
根据检测到的充电状态参数以及温度判断充电状态与温度T是否平衡。具体地,判断温度T是否与预设温度T1相等,如果相等则表示二者平衡,则不对频率F进行调整后,并继续返回执行步骤S210、S220以及S230。如果二者不平衡则执行步骤S250。
S250,根据充电状态参数以及温度生成频率调整指令。
频率调节指令用于对无线充电装置的工作频率进行调整。
S260,根据频率调整指令对频率进行调整。
根据生成的频率调整指令对频率F进行调整,从而实现对充电状态参数的调整,使得无线充电装置的充电状态与所述温度相平衡,以确保无线充电过程的安全稳定进行。
上述无线充电监控方法,能够对无线充电装置充电过程中的温度进行监控,并在温度与充电状态不平衡时通过调整无线充电装置的工作频率来对充电状态参数进行调整,进而实现无线充电状态与温度之间的平衡,有效提高了无线充电过程的安全性。并且,在通过调整频率来实现对无线充电装置的充电状态进行调整的过程中,其可以对无线充电装置的输出功率进行调整,但是并不会降低无线充电过程的效率,从而使得无线充电过程的充电效率较高。
图3为另一实施例中的无线充电监控方法的流程图,其包括以下步骤。
S310,实时检测无线充电装置的温度。
S320,实时检测无线充电装置的工作频率。
S330,实时检测无线充电装置的充电状态参数。
S340,判断无线充电状态是否与温度相平衡。
具体地,判断温度T是否与预设温度T1相等,如果相等则表示二者平衡,则不对频率F进行调整后,并继续返回执行步骤S310、S320以及S330。如果二者不平衡则执行步骤S350。
S350,判断温度是否小于预设温度。
判断温度T是否小于预设温度T1,若是,则执行步骤365。若温度T大于预设温度T1则执行步骤S355。
S355,判断温度是否大于阈值温度。
阈值温度T2为无线充电装置在充电过程中最大允许温度。当温度T大于阈值温度T2,则执行步骤S370。若温度T小于或等于阈值温度T2则执行步骤S360。
S360,生成用于增大无线充电装置的工作频率的频率调整指令,并生成启动散热指令。
启动散热指令用于控制散热模块开启进行散热以降低无线充电装置的温度,促进无线充电过程中充电状态与温度T之间的平衡,提高无线充电过程中的安全性以及效率。
生成用于增大无线充电装置的工作频率的频率调整指令会根据具体的温度进行不同处理。具体地,当温度T与预设温度T1的温差在预设的小范围内时,增大幅度较小。当温度T与预设温度T1的温差较大时,其频率增大幅度会相应的调大,以尽快实现无线充电状态与温度T之间的平衡。
S365,生成用于减小无线充电装置的工作频率的频率调整指令。
在温度T小于预设温度T1时,通过减小频率F以增大输出功率,以提高充电速率。
S370,生成关断指令。
在温度T大于阈值温度T2时,生成关断指令以控制无线充电装置停止充电,
形成对无线充电装置的保护。
S380,根据接收到的指令进行对无线充电装置进行相应的操作。
根据接收到的频率调整指令对无线充电装置的工作频率进行调整。若接收到开启散热指令,则控制散热模块开启散热并在温度T与充电状态达到平衡后关闭散热模块,以节约电能。在接收到关断指令后,则控制无线充电装置停止充电,以形成对无线充电装置的保护。
图4为第二较佳实施例中的无线充电监控装置的电路框图,包括温度检测模块410、控制模块440以及执行模块450。
温度检测模块410用于对无线充电装置在无线充电过程中的温度进行实时检测,并将检测得到的温度T输出给控制模块440。温度检测模块410设置在无线充电装置中的热量聚集区域,从而能对无线充电装置的温度进行最真实的反应。的热量聚集区域通常为发热严重的器件较为集中,且散热条件较差的区域。发热严重的器件主要为高频开关器件、流经大电流或高电压的功率器件等。优选的,温度检测模块410设置在功率器件的表面。当然,也可以设置在功率器件的散热器的表面,还可以设置在的热量聚集区域所在的无线充电装置的壳体上,或安装发热严重的器件的线路板上。在图1所示的实施例中温度检测模块110设置的位置与图4所示的实施例中的温度检测模块410设置的位置可以相同或不同。通常,功率器件表面所允许的温度约为90℃~100℃,在其辐射范围内的环境温度一般在70℃左右,相应的位置上的壳体的温度也是在70℃左右。
控制模块440与温度检测模块410连接,接收温度检测模块410传递的信号,根据接收到的温度信号发出控制信号给执行模块450,控制无线充电装置的充电状态。
在一种实施例的情况下,控制模块440根据温度检测模块410传递的信号判断无线充电装置的温度上升的速率是否超过第一预设速率,当判断结果为是时,发出按照第一预设算法降低无线充电装置的充电功率的指令;反之,当判断结果为否时,发出无线充电装置以额定功率进行充电的指令。在其他可选的实施例中,当判断结果为否时,可维持无线充电装置当前的充电功率,而不增大充电功率或减小充电功率。第一预设算法可以是将无线充电装置的充电功率降低
到某一个预设的充电功率,例如降低为额定充电功率的80%或60%。第一预设算法也可以是根据所述温度上升的速率调整无线充电装置的充电功率降低的速率或降低的数值,例如温度上升的速率高,则充电功率降低的速率高,或充电功率降低的幅度大,或充电功率降低到某一个相对较小的数值;温度上升的速率低,则充电功率降低的速率小,或充电功率降低的幅度小,或充电功率降低到某一个相对较高的数值。
在另一种实施例的情况下,控制模块440根据温度检测模块410传递的信号判断无线充电装置的温度是否超过第一预设温度(T1),当判断结果为是时,发出按照第二预设算法降低无线充电装置的充电功率的指令;反之,当判断结果为否时,发出无线充电装置以额定功率进行充电的指令。在其他可选的实施例中,当判断结果为否时,可维持无线充电装置当前的充电功率,而不增大充电功率或减小充电功率。第二预设算法可以是将无线充电装置的充电功率降低到某一个预设的充电功率,例如降低为额定充电功率的70%或60%或50%。第二预设算法也可以是根据无线充电装置的温度与第一预设温度的差值调整无线充电装置的充电功率降低的速率或降低的数值,例如当温度超过第一预设温度较多时,无线充电装置的充电功率以较大的速率降低,或充电功率降低的幅度大,或充电功率降低到某一个相对较小的数值;当温度超过第一预设温度较小时,则充电功率以较小的速率降低,或充电功率降低的幅度小,或充电功率降低到某一个相对较高的数值。
执行模块450与控制模块440连接,用于接收控制模块440输出的指令,从而对无线充电装置的充电状态进行调整,确保无线充电能够正常进行,提高无线充电过程的安全性。执行模块450通过调整无线充电装置的充电电流或充电电压增大、维持或降低无线充电装置的充电功率。具体的,在一种实施方式下,执行模块450可以通过调整无线充电装置的工作频率的方式调整无线充电装置的充电电流。无线充电装置的工作频率为无线发射线圈和无线接收线圈的振荡频率。例如,在无线充电装置的谐振频率为85KHz的情况下,无线充电装置的工作频率为85KHz时,无线充电装置的工作效率最高,充电功率最大。当需要降低无线充电装置的充电电流时,将无线充电装置的工作频率向远离谐振频率85KHz
的方向调整,即使得无线充电装置的工作频率远大于或远小于谐振频率85KHz。反之,当需要增大无线充电装置的充电电流时,将无线充电装置的工作频率向靠近85KHz的方向调整,即使得无线充电装置的工作频率约等于谐振频率85KHz。在另一种实施方式下,执行模块450可以控制无线充电装置采取脉冲充电的方式降低充电电流。脉冲充电即以非连续的脉冲电流向储能装置进行充电,由于在脉冲充电的过程中,并非持续输出充电电流,因此,可以大大降低充电电流的平均值。为清楚说明脉冲电流的含义,以PWM信号为例进行说明。脉冲电流并非PWM信号中的出现的占空比非100%的脉冲,而是指生成PWM的装置是间断地生成PWM信号的。
在其他可选的实施例中,无线充电监控装置还可以进一步包括散热模块460。散热模块460与控制模块440连接,用于接收其输出的开启散热指令,并在该指令的控制下开启散热,以降低无线充电装置的温度。当控制模块440判断无线充电装置的温度超过第一预设温度T1时,发出开启散热的指令。
在其他可选的实施例中,控制模块440判断无线充电装置的温度超过第一预设温度时,进一步判断无线充电装置的温度是否超过第二预设温度T2。第二预设温度大于第一预设温度。当判断结果为是时,控制模块440发出将无线充电装置的充电功率降低为额定充电功率的10%以下的指令,执行模块450根据控制模块440的指令,将无线充电装置的充电功率降低为额定充电功率的10%以下。将无线充电装置的充电功率降低为额定充电功率的10%以下的指令包括控制无线充电装置停止输出充电功率、将充电功率降低到额定充电功率的8%或5%的情形,即无线充电装置停止对储能装置的充电过程。第二预设温度T2为无线充电装置允许的最高温度,超过该温度将引发安全问题,如不满足安规要求的温升,器件的损坏等。
在其他可选的实施例中,在执行模块450将无线充电装置的充电功率降低为额定充电功率的10%以下的情况下,控制模块440持续通过温度检测模块410检测无线充电装置当前的温度,并判断无线充电装置当前的温度是否低于第三预设温度T3,当判断结果为是时,发出增大无线充电装置的充电功率的指令,即将充电功率恢复到额定充电功率或重新启动正常充电。执行模块450根据控
制模块440的指令,增大无线充电装置的充电功率。增大无线充电装置的充电功率包括由低充电功率状态切换为高充电功率状态,也包括由不充电的状态切换为启动充电的状态。第三预设温度T3比第二预设温度T2低预设值。可选的,第三预设温度T3比第二预设温度T2低5~15℃。更为优选的,第三预设温度T3比第二预设温度T2低5~10℃。可选的,第三预设温度T3小于或等于第一预设温度T1。
在其他可选的实施例中,无线充电监控装置还可以进一步包括报警模块470。当控制模块440发出将无线充电装置的充电功率降低到额定功率的10%以下的指令时,报警模块向操作者报警。报警的方式包括但不限于以下方式,指示灯闪烁报警,声音报警,具有特定标识的指示灯点亮等方式。
报警模块470可以设置在无线充电装置的无线充电发射端,也可以设置在无线充电接收端。无论报警模块470设置在无线充电发射端或无线充电接收端,只要无线充电装置有充电功率的输出,则报警模块470可直接或间接地从AC电源取电供其工作。但当报警模块470设置在无线充电接收端,且无线充电装置不再输出充电功率时,无线充电接收端与AC电源没有连接关系,不能从AC电源取电供其工作。因此,当报警模块470设置在无线充电装置的无线充电接收端时,优选的,报警模块470与储能装置电性连接,从储能装置取电供其工作。
图5为图4所示实施例中的无线充电监控装置的第一较佳实施例的流程图,其包括以下步骤。
S510,获取无线充电装置的温度。获取温度的具体方式为与温度检测模块电性连接,获取温度检测模块传递的信号,并对信号进行识别。温度检测模块设置的位置如前所述。
S530,判断无线充电装置的温度是否超过第一预设温度。即判断无线充电装置的温度是否大于或等于第一预设温度。当判断结果为是时,进入步骤S550。当判断结果为否时,进入步骤S520。在其他可选的实施方式中,当判断结果为否时,可返回步骤S510。返回步骤S510的含义是维持无线充电装置当前的充电功率,不进行主动的改变。
S520,发出无线充电装置以额定充电功率充电的指令。执行模块接收到该指令后,控制无线充电装置以额定充电功率对储能装置充电。步骤S520结束后,可立即进入步骤S510,也可以是预定时长后才进入S510。
S550,发出按照第二预设算法降低无线充电装置的充电功率的指令。执行模块接收到该指令后,按照第二预设算法降低无线充电装置的充电功率。第二预设算法如前所述。在可选的其他实施例中,步骤S550之后可以进入步骤S570,也可直接返回步骤S510。
S570,生成启动散热指令。启动散热指令用于控制散热模块开启进行散热以降低无线充电装置的温度。步骤S570之后,可立即进入步骤S510或预设时间长度后进入步骤S510。
图6为图4所示实施例中的无线充电监控装置的第二较佳实施例的流程图,其包括以下步骤。
S610,获取无线充电装置的温度。获取温度的具体方式如前所述。
S612,判断无线充电装置的温度是否超过第一预设温度。即判断无线充电装置的温度是否大于或等于第一预设温度。当判断结果为是时,进入步骤S614。当判断结果为否时,进入步骤S613。在其他可选的实施方式中,当判断结果为否时,可返回步骤S610。返回步骤S610的含义是维持无线充电装置当前的充电功率不变。
S613,发出无线充电装置以额定充电功率充电的指令。执行模块接收到该指令后,控制无线充电装置以额定充电功率对储能装置充电。步骤S613结束后,可立即进入步骤S610,也可以是预定时长后才进入S610。
S614,判断无线充电装置的温度是否超过第二预设温度。即判断无线充电装置的温度是否大于或等于第二预设温度,第二预设温度大于第一预设温度。当判断结果为是时,进入步骤S620。当判断结果为否时,进入步骤S616。
S616,发出按照第二预设算法降低无线充电装置的充电功率的指令。执行模块接收到该指令后,按照第二预设算法降低无线充电装置的充电功率。第二预设算法如前所述。在可选的其他实施例中,步骤S616之后可以进入步骤S618,也可直接返回步骤S610。
S618,生成启动散热指令。启动散热指令用于控制散热模块开启进行散热以降低无线充电装置的温度。步骤S618之后,可立即进入步骤S610或预设时间长度后进入步骤S610。
S620,生成降低无线充电装置的充电功率至第二预设功率以下的指令。执行模块接收到该指令后,降低无线充电装置的充电功率至第二预设功率以下。随着无线充电装置的温度的进一步抬升,无线充电装置允许的充电功率需进一步降低,以防无线充电装置的损坏。基于此,优选的,第二预设功率为无线充电装置的额定功率的10%以下。更为优选的,第二预设功率为无线充电装置停止充电时的充电功率。步骤S620之后,进入步骤S622。
S622,生成启动报警指令。启动报警指令用于控制报警模块向操作者报警。启动报警的指令可以由控制模块生成,也可以由报警模块自身生成。当报警模块安装在无线充电装置的无线充电发射端或无线充电接收端时,启动报警的指令都可以由控制模块生成。但当报警模块安装在无线充电装置的无线充电接收端时,优选的,启动报警的指令由报警模块自身生成。具体方式为,报警模块检测到无线充电装置的充电功率低于额定功率的10%以下,则可判断无线充电装置的温度超过第二预设温度,则启动报警。报警模块的报警方式、安装位置以及取电方式如前所述,在此不再赘述。由于无线充电装置的温度过高,其充电功率降低到非常小的状态,相当于由充电状态切换到了没有充电的状态,该种状态的切换需要告知操作者,以免造成操作者的混乱,基于此设计步骤S622。步骤S622之后进入步骤S624。
S624至S628的目的是实时检测无线充电装置的温度是否由高温恢复到正常温度,一旦其恢复到正常温度,将无线充电装置的状态由没有充电的状态切换为正常充电的状态。具体的步骤内容如下:
S624,获取无线充电装置的温度。获取无线充电装置的温度的方式为接收温度检测模块的信号,并对其进行识别。温度检测模块设置的位置如前所述。随后进入步骤S626。
S626,判断无线充电装置的温度是否低于第三预设温度T3。第三预设温度T3与第一预设温度T1和第二预设温度T2的关系如前所述。当判断结果为是时,
表明无线充电装置的温度已由高温恢复为正常温度,无线充电装置可恢复正常充电,此时进入步骤S626。反之,当判断结果为否是,表明无线充电装置的温度仍处于高温状态,不能恢复正常充电,此时进入步骤S624。
S628,生成增大无线充电装置的充电功率的指令。该指令用于控制执行模块使其恢复无线充电装置正常充电的状态或以额定充电功率充电的状态。随后,进入步骤S610。
在第三种较佳实施方式中,步骤S622之后进入步骤S610,没有步骤S624至步骤S628。本实施例所包含的其他步骤与第二较佳实施例相同。
在第四种较佳实施方式中,步骤S622与步骤S624之间,增加步骤启动散热的步骤。该步骤的内容同S618。本实施例所包含的其他步骤与第二较佳实施例相同。
本发明还提供第五较佳实施方式。本实施方式与图5所示的较佳实施方式基本相同。区别在于,本实施方式中,由步骤S530’替代图5中的步骤S530,由步骤S550’替代图5中的步骤S550。步骤S530’为判断无线充电装置的温度上升的速率是否超过第一预设速率。步骤S550’为发出按照第一预设算法降低无线充电装置的充电功率的指令。
本发明还提供第六较佳实施方式。本实施方式与图6所示的较佳实施方式基本相同。区别在于,本实施方式中,由步骤S612’替代图6中的步骤S612,由步骤S614’替代图6中的步骤S614,由步骤S616’替代图6中的步骤S616,由步骤S626’替代图6中的步骤S626。步骤S612’为判断无线充电装置的温度上升的速率是否超过第一预设速率。步骤S616’为发出按照第一预设算法降低无线充电装置的充电功率的指令。步骤S614’为判断无线充电装置的温度上升的速率是否超过第二预设速率。步骤S626’为判断无线充电装置的温度上升的速率是否低于第三预设速率,第三预设速率低于第二预设速率。
在前述实施例中,第一预设温度T1为无线充电装置在当前的无线充电状态下所允许的较为理想的温度,在该温度下,无线充电装置的充电功率与无线充电装置的温升达到最佳平衡。因此,其可以根据无线充电装置以及无线充电状态进行确定,并不限于某一个确定的值。可选的,无线充电监控装置进一步包
括充电状态检测模块。充电状态检测模块检测无线充电装置的充电状态,并将检测结果传递给控制模块,控制模块根据充电状态检测模块传递的结果设置第一预设温度T1的数值。本领域技术人员可以理解的是,控制模块也可以根据无线充电装置的充电状态对第二预设温度T2和第三预设温度T3中的至少一个进行调整。同样的,第一预设速率、第二预设速率、第三预设速率也可以根据当前的充电状态调节。
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (28)
- 一种无线充电监控方法,监控无线充电装置对储能装置充电的过程,其特征在于,所述无线充电监控方法包括以下步骤:获取所述无线充电装置的温度;根据所述温度调整无线充电装置的充电状态。
- 根据权利要求1所述的无线充电监控方法,其特征在于,根据所述温度调整无线充电装置的充电状态的步骤包括以下子步骤:判断所述温度上升的速率是否超过第一预设速率;当所述温度上升的速率超过第一预设速率时,按照第一预设算法降低无线充电装置的充电功率。
- 根据权利要求2所述的无线充电监控方法,其特征在于,所述第一预设算法为根据所述温度上升的速率调整无线充电装置的充电功率降低的速率或降低的数值。
- 根据权利要求1所述的无线充电监控方法,其特征在于,根据所述温度调整无线充电装置的充电状态的步骤包括以下子步骤:判断所述温度是否超过第一预设温度;当所述温度超过第一预设温度时,按照第二预设算法降低无线充电装置的充电功率。
- 根据权利要求4所述的无线充电监控方法,其特征在于,所述第二预设算法为根据所述温度与第一预设温度的差值调整无线充电装置的充电功率降低的速率或降低的数值。
- 根据权利要求1所述的无线充电监控方法,其特征在于,当所述温度超过第一预设温度时,进一步判断所述温度是否超过第二预设温度,所述第二预设温度高于所述第一预设温度,当所述温度超过第二预设温度时,降低无线充电装置的充电功率的方法为将所述无线充电装置的充电功率降低为额定充电功率的10%以下。
- 根据权利要求6所述的无线充电监控方法,其特征在于,当所述温度超过第二预设温度时,所述无线充电监控方法还进一步包括以下步骤:控制所述无线充电装置向操作者报警。
- 根据权利要求7所述的无线充电监控方法,其特征在于,控制所述无线充电装置向操作者报警的具体步骤为:提供一个向操作者报警的报警模块,所述报警模块设置在无线充电装置的无线充电接收端,与所述储能装置电性连接;当检测到充电功率为额定充电功率的10%以下时,所述无线报警模块向操作者报警。
- 根据权利要求6所述的无线充电监控方法,其特征在于,将所述无线充电装置的充电功率降低为额定充电功率的10%以下时,所述无线充电监控方法还进一步包括以下步骤:获取所述无线充电装置的温度;判断所述温度是否低于第三预设温度,所述第三预设温度低于所述第二预设温度;当判断结果为是时,增大所述无线充电装置的充电功率。
- 根据权利要求1所述的无线充电监控方法,其特征在于,获取所述无线充电装置的温度的具体步骤为:提供检测温度的温度检测模块,将温度检测模块设置在无线充电装置内的热量聚集区域,获取温度检测模块传递的信号。
- 根据权利要求10所述的无线充电监控方法,其特征在于,所述的热量聚集区域为功率器件的表面。
- 根据权利要求2或4所述的无线充电监控方法,其特征在于,当所述温度没有超过所述第一预设温度或所述温度上升的速率没有超过第一预设速率时,所述无线充电装置以额定充电功率对储能装置充电。
- 根据权利要求2或4所述的无线充电监控方法,其特征在于,在判断所述温度是否超过第一预设温度的步骤或判断所述温度上升的速率是否超过第一预设速率的步骤之前,所述无线充电监控方法进一步包括以下步骤:检测无线充电装置的充电状态,根据无线充电装置的充电状态设置所述第一预设温度的数值或第一预设速率的数值。
- 一种无线充电监控装置,对无线充电装置向储能装置充电的过程进行监控,其特征在于,包括:温度检测模块,检测所述无线充电装置的温度;控制模块,与所述温度检测模块电性连接,根据温度检测模块传递的信号,发出调整无线充电装置的充电功率的指令;执行模块,与所述控制模块连接,根据所述控制模块的指令对所述无线充电装置的充电状态进行调整。
- 根据权利要求14所述的无线充电监控装置,其特征在于,所述控制模块判断所述温度上升的速率是否超过第一预设速率,当所述温度上升的速率超过第一预设速率时,发出按照第一预设算法降低无线充电装置的充电功率的指令。
- 根据权利要求15所述的无线充电监控装置,其特征在于,所述第一预设算法为根据所述温度上升的速率调整无线充电装置的充电功率降低的速率或降低的数值。
- 根据权利要求14所述的无线充电监控装置,其特征在于,所述控制模块判断所述温度是否超过第一预设温度,当判断结果为是时,发出按照第二预设算法降低无线充电装置的充电功率的指令。
- 根据权利要求17所述的无线充电监控装置,其特征在于,所述第二预设算法为根据所述温度与第一预设温度的差值调整无线充电装置的充电功率降低的速率或降低的数值。
- 根据权利要求17所述的无线充电监控装置,其特征在于,所述控制模块判断所述温度超过第一预设温度时,进一步判断所述温度是否超过第二预设温度,所述第二预设温度大于所述第一预设温度,当判断结果为是时,发出将所述无线充电装置的充电功率降低到额定功率的10%以下的指令。
- 根据权利要求19所述的无线充电监控装置,其特征在于,所述无线充电监控装置还进一步包括报警模块,当所述控制模块判断所述温度超过第二预设温度时,所述报警模块向操作者报警。
- 根据权利要求19所述的无线充电监控装置,其特征在于,所述报警模块设置在无线充电装置的无线充电接收端,与所述储能装置电性连接;所述报警模块检测到所述无线充电装置的充电功率降低到额定充电功率的10%以下时向操作者报警。
- 根据权利要求19所述的无线充电监控装置,其特征在于,发出将所述无线充电装置的充电功率降低为额定充电功率的10%以下的指令后,所述控制模块通过所述温度检测模块获取所述无线充电装置的温度,判断所述温度是否低于第三预设温度,所述第三预设温度低于所述第二预设温度,当判断结果为是时,发出增大所述无线充电装置的充电功率的指令。
- 根据权利要求14所述的无线充电监控装置,其特征在于,所述温度检测模块设置在无线充电装置内的热量聚集区域。
- 根据权利要求23所述的无线充电监控装置,其特征在于,所述的热量聚集区域为功率器件的表面。
- 根据权利要求15或17所述的无线充电监控装置,其特征在于,所述控制模块判断所述温度没有超过所述第一预设温度或所述温度上升的速率没有超过第一预设速率时,发出以无线充电装置的额定充电功率充电的指令。
- 根据权利要求15或17所述的无线充电监控装置,其特征在于,所述无线充电监控装置还包括充电状态检测模块,所述充电状态检测模块检测无线充电装置的充电状态,并将检测结果传递给控制模块,所述控制模块根据充电状态检测模块传递的结果设置所述第一预设温度或第一预设速率的数值。
- 根据权利要求15或17所述的无线充电监控装置,其特征在于,无线充电监控装置还包括散热模块,与所述控制模块连接;所述控制模块还用于在所述温度大于所述第一预设温度或所述温度上升的速率超过第一预设速率时生成启动散热指令并输出给所述散热模块;所述散热模块用于根据所述启动散热指令启动对所述无线充电装置进行散热。
- 一种无线充电装置,其特征在于,所述无线充电装置包括如权利要求14~27任一所述的无线充电监控装置,以及无线发射线圈和无线接收线圈。
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| CN110945741A (zh) * | 2019-11-07 | 2020-03-31 | 北京小米移动软件有限公司 | 充电功率控制方法、装置及可读存储介质 |
| CN114157045A (zh) * | 2021-11-22 | 2022-03-08 | 珠海格力电器股份有限公司 | 无线充电装置和电器设备 |
| CN114792998A (zh) * | 2021-01-26 | 2022-07-26 | 北京小米移动软件有限公司 | 无线充电系统发射端的控制方法、装置、设备及介质 |
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| CN106953395A (zh) * | 2017-04-28 | 2017-07-14 | 维沃移动通信有限公司 | 一种无线充电器、无线充电系统及无线充电方法 |
| CN107528369A (zh) * | 2017-08-31 | 2017-12-29 | 努比亚技术有限公司 | 终端及其无线充电控制方法、计算机可读存储介质 |
| CN107801237A (zh) * | 2017-11-15 | 2018-03-13 | 北京联盛德微电子有限责任公司 | 具备功率控制装置的无线充电系统及功率控制方法 |
| CN108649667A (zh) * | 2018-07-12 | 2018-10-12 | 安徽锐能科技有限公司 | 无线充电装置 |
| CN111447782B (zh) * | 2019-01-17 | 2022-01-18 | Oppo广东移动通信有限公司 | 充电系统、散热装置及其控制方法 |
| CN114614533A (zh) * | 2022-03-21 | 2022-06-10 | 西安特来电领充新能源科技有限公司 | 一种控制功率的方法及装置 |
| CN115360786B (zh) * | 2022-08-19 | 2024-07-12 | 乐思灯具(上海)有限公司 | 一种灯具的无线充电控制方法、系统及计算机设备 |
| CN115719994B (zh) * | 2023-01-10 | 2023-06-13 | 佛山电力设计院有限公司 | 一种无线供电方法及系统 |
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