CN109066844B - Battery charging device and battery charging method - Google Patents
Battery charging device and battery charging method Download PDFInfo
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- CN109066844B CN109066844B CN201810847160.8A CN201810847160A CN109066844B CN 109066844 B CN109066844 B CN 109066844B CN 201810847160 A CN201810847160 A CN 201810847160A CN 109066844 B CN109066844 B CN 109066844B
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- 238000001514 detection method Methods 0.000 claims abstract description 70
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- 238000005259 measurement Methods 0.000 abstract 1
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- H02J7/0003—
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The present invention relates to a battery charging apparatus and a battery charging method. The battery charging device comprises a switch module, a temperature detection module and a control module. The input end of the switch module is used for connecting a power supply, and the output end of the switch module is used for connecting a battery; the temperature detection module is used for being connected with the battery; the control module is respectively connected with the temperature detection module and the switch module; the temperature detection module is used for detecting a first measured temperature of the battery and sending the detected first measured temperature to the control module; the control module is used for detecting whether the first measured temperature reaches a first temperature threshold value. The battery charging device and the battery charging method not only provide a new device and a new method for judging whether the battery is fully charged, but also can accurately judge whether the battery is fully charged, and have high measurement efficiency, simple structure and easy operation.
Description
Technical Field
The present invention relates to the field of battery charging technologies, and in particular, to a battery charging apparatus and a battery charging method.
Background
Along with the improvement of living standard of people, the application field of the charger is more and more extensive. The traditional battery full-charging method comprises a zero slope method, a delta V method and the like. In practical applications, because the battery characteristics are different and the usage environment is different, a method for fully charging the battery is selected according to experimental data of the rechargeable battery, and due to the limitation of micro-control unit resources (such as read-only memory mirror space limitation), a suitable method for fully determining the battery charging needs to be selected from a plurality of methods for fully determining the battery charging.
Disclosure of Invention
In view of the above, it is necessary to provide a battery charging apparatus and a battery charging method for solving the problem that the conventional battery charging method cannot be applied to a plurality of different batteries.
A battery charging apparatus comprising:
the input end of the switch module is used for being connected with a power supply, and the output end of the switch module is used for being connected with a battery;
the temperature detection module is used for being connected to the battery;
the control module is respectively connected with the temperature detection module and the switch module;
the temperature detection module is used for detecting a first measured temperature of the battery and sending the detected first measured temperature to the control module;
the control module is used for detecting whether the first measured temperature reaches a first temperature threshold value; when the first measured temperature does not reach the first temperature threshold value, controlling the switch module to be kept on, and continuously charging the battery;
when the first measured temperature reaches the first temperature threshold, controlling the temperature detection module to detect whether a second measured temperature of the battery after a preset time is greater than or equal to a second temperature threshold;
when the second measured temperature is lower than the second temperature threshold, controlling the switch module to be kept on, and continuing to charge the battery; and when the second measured temperature is greater than or equal to the second temperature threshold value, controlling the switch unit to be turned off/closed, and stopping charging the battery.
In one embodiment, the battery charging apparatus further comprises a power supply module, and the power supply module is connected to the input end of the switch module.
In one embodiment, the control module is connected with the control end of the switch module.
In one embodiment, the first temperature threshold is less than the second temperature threshold.
The invention also provides a battery charging method, which comprises the following steps:
charging the battery;
detecting the temperature of the battery to obtain a first measured temperature;
detecting whether a first measured temperature of the battery reaches a first temperature threshold; when the first measured temperature does not reach the first temperature threshold, continuing to charge the battery; when the first measured temperature reaches the first temperature threshold value, detecting the temperature of the battery after preset time to obtain a second measured temperature;
detecting whether a second measured temperature of the battery is greater than or equal to a second temperature threshold; when the second measured temperature is smaller than the second temperature threshold value, continuing to charge the battery; and when the second measured temperature of the battery is greater than or equal to the second temperature threshold, disconnecting the power supply and stopping charging the battery.
The battery charging device comprises a switch module, a temperature detection module and a control module. The input end of the switch module is used for connecting a power supply, and the output end of the switch module is used for connecting a battery; the temperature detection module is used for being connected with the battery; the control module is respectively connected with the temperature detection module and the switch module; the temperature detection module is used for detecting a first measured temperature of the battery and sending the detected first measured temperature to the control module; the control module is used for detecting whether the first measured temperature reaches a first temperature threshold value; when the first measured temperature does not reach the first temperature threshold value, controlling the switch module to be kept on, and continuously charging the battery; when the first measured temperature reaches a first temperature threshold, controlling a temperature detection module to detect whether a second measured temperature of the battery after a preset time is greater than or equal to a second temperature threshold; when the second measured temperature is lower than the second temperature threshold, controlling the switch module to be kept on, and continuing to charge the battery; and when the second measured temperature is greater than or equal to the second temperature threshold value, the switch unit is controlled to be turned off/closed, and the battery is stopped to be charged. Experiments show that under the condition that the battery is fully charged, the temperature of the battery which is just fully charged is a first temperature threshold, and the temperature of the battery is increased from the first temperature threshold to a second temperature threshold after a preset time; therefore, according to the result obtained from the experimental data, the battery charging apparatus and the battery charging method are provided, the temperature of the battery is measured when the battery starts to be charged, namely the first measured temperature, when the first measured temperature reaches the first temperature threshold value, the temperature judgment full mode is started, when the temperature judgment full mode is started, the timing is started, after the preset time, the temperature of the battery at the moment is measured, namely the second measured temperature, and if the second measured temperature reaches the second temperature threshold value, the battery is determined to be fully charged. Therefore, the battery charging device and the battery charging method not only provide a new device and a new method for judging whether the battery is fully charged, but also can accurately judge whether the battery is fully charged, and have high measuring efficiency, and the battery charging device has a simple structure and is easy to operate.
Drawings
Fig. 1 is a schematic structural diagram of a battery charging apparatus according to an embodiment;
FIG. 2 is a flow chart illustrating a battery charging method according to an embodiment;
FIG. 3 is a flow chart illustrating a battery charging method according to another embodiment;
fig. 4 is a flowchart illustrating a battery charging method according to yet another embodiment.
Detailed Description
In order to facilitate an understanding of the present invention, a battery charging apparatus and a battery charging method will be described more fully below with reference to the accompanying drawings. Preferred embodiments of a battery charging apparatus and a battery charging method are shown in the drawings. However, the battery charging apparatus and the battery charging method may be implemented in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the battery charging apparatus and the battery charging method is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
For example, a battery charging device includes a switch module, a temperature detection module and a control module. For example, the input end of the switch module is used for connecting a power supply, and the output end of the switch module is used for connecting a battery; for example, the temperature detection module is used for connecting to the battery; for example, the control module is respectively connected with the temperature detection module and the switch module; for example, the temperature detection module is configured to detect a first measured temperature of the battery and send the detected first measured temperature to the control module; for example, the control module is configured to detect whether the first measured temperature reaches a first temperature threshold; for example, when the first measured temperature does not reach the first temperature threshold, the switch module is controlled to be kept on, and the battery is continuously charged; for example, when the first measured temperature reaches the first temperature threshold, controlling the temperature detection module to detect whether a second measured temperature of the battery after a preset time is greater than or equal to a second temperature threshold; for example, when the second measured temperature is lower than the second temperature threshold, the switch module is controlled to be kept on, and the battery is continuously charged; for example, when the second measured temperature is greater than or equal to the second temperature threshold, the control switch unit is turned off/closed to stop charging the battery. For example, a battery charging device includes a switch module, a temperature detection module and a control module. The input end of the switch module is used for connecting a power supply, and the output end of the switch module is used for connecting a battery; the temperature detection module is used for being connected with the battery; the control module is respectively connected with the temperature detection module and the switch module; the temperature detection module is used for detecting a first measured temperature of the battery and sending the detected first measured temperature to the control module; the control module is used for detecting whether the first measured temperature reaches a first temperature threshold value; when the first measured temperature does not reach the first temperature threshold value, controlling the switch module to be kept on, and continuously charging the battery; when the first measured temperature reaches the first temperature threshold, controlling the temperature detection module to detect whether a second measured temperature of the battery after a preset time is greater than or equal to a second temperature threshold; when the second measured temperature is lower than the second temperature threshold, controlling the switch module to be kept on, and continuing to charge the battery; and when the second measured temperature is greater than or equal to the second temperature threshold value, controlling the switch unit to be turned off/closed, and stopping charging the battery.
As shown in fig. 1, the battery charging apparatus of an embodiment includes a switch module 110, a temperature detection module 120, and a control module 130. The input end of the switch module 110 is used for connecting a power supply, and the output end of the switch module 110 is used for connecting a battery; the temperature detection module 120 is used for connecting to the battery; the control module 130 is respectively connected with the temperature detection module 120 and the switch module 110; the temperature detection module 120 is configured to detect a first measured temperature of the battery, and send the detected first measured temperature to the control module 130; the control module 130 is configured to detect whether the first measured temperature reaches a first temperature threshold; when the first measured temperature does not reach the first temperature threshold, controlling the switch module 110 to be kept on, and continuing to charge the battery; when the first measured temperature reaches the first temperature threshold, controlling the temperature detection module 120 to detect whether a second measured temperature of the battery after a preset time is greater than or equal to a second temperature threshold; when the second measured temperature is lower than the second temperature threshold, controlling the switch module 110 to keep on, and continuing to charge the battery; and when the second measured temperature is greater than or equal to the second temperature threshold value, controlling the switch unit to be turned off/closed, and stopping charging the battery.
Specifically, the switch module 110 is used for connecting a power source and a battery, when the switch module 110 is turned on, the power source is electrically connected with the battery, and the power source transmits electric energy to the battery to charge the battery. When the switching module 110 is turned off or closed, the connection between the power source and the battery is disconnected, so that the power source stops charging the battery. The temperature detection module 120 is configured to detect a temperature of the battery, acquire a temperature of the battery during a charging process, and send the detected temperature to the control module 130, in one embodiment, the temperature detection module 120 includes a temperature sensor, and the temperature detected by the temperature sensor is sent to the control module 130 through signal amplification, so that the control module 130 acquires the temperature of the battery, controls the switch module 110 according to the temperature of the battery, and controls the on/off of the switch module 110 to realize the control of the charging of the battery.
The battery charging apparatus and the battery charging method described above include a switch module 110, a temperature detecting module 120 and a control module 130. The input end of the switch module 110 is used for connecting a power supply, and the output end of the switch module 110 is used for connecting a battery; the temperature detection module 120 is used for connecting to a battery; the control module 130 is respectively connected with the temperature detection module 120 and the switch module 110; the temperature detection module 120 is configured to detect a first measured temperature of the battery, and send the detected first measured temperature to the control module 130; the control module 130 is configured to detect whether the first measured temperature reaches a first temperature threshold; when the first measured temperature does not reach the first temperature threshold, controlling the switch module 110 to be switched on, and continuing to charge the battery; when the first measured temperature reaches the first temperature threshold, controlling the temperature detection module 120 to detect whether a second measured temperature of the battery after a preset time is greater than or equal to the second temperature threshold; when the second measured temperature is lower than the second temperature threshold, the switch module 110 is controlled to be kept on, and the battery continues to be charged; and when the second measured temperature is greater than or equal to the second temperature threshold value, the switch unit is controlled to be turned off/closed, and the battery is stopped to be charged. Experiments show that under the condition that the battery is fully charged, the temperature of the battery which is just fully charged is a first temperature threshold, and the temperature of the battery is increased from the first temperature threshold to a second temperature threshold after a preset time; therefore, according to the result obtained from the experimental data, the battery charging apparatus and the battery charging method are provided, the temperature of the battery is measured when the battery starts to be charged, namely the first measured temperature, when the first measured temperature reaches the first temperature threshold value, the temperature judgment full mode is started, when the temperature judgment full mode is started, the timing is started, after the preset time, the temperature of the battery at the moment is measured, namely the second measured temperature, and if the second measured temperature reaches the second temperature threshold value, the battery is determined to be fully charged. Therefore, the battery charging device and the battery charging method not only provide a new device and a new method for judging whether the battery is fully charged, but also can accurately judge whether the battery is fully charged, and have high measuring efficiency, and the battery charging device has a simple structure and is easy to operate.
In one embodiment, the battery charging apparatus further includes a power module 140, the power module 140 is connected to the input terminal of the switch module 110, and the output terminal of the switch module 110 is used for connecting the battery. Since the battery charging apparatus is further provided with the power module 140, the battery can be conveniently charged without being limited by a place. In one embodiment, the number of the power modules 140 is multiple, the power modules 140 are arranged in parallel, and the power modules 140 are all connected to the input end of the switch module 110, so that when one power module 140 fails, other power modules 140 can still operate, and the battery can be charged uninterruptedly. In one embodiment, the power module 140 is an AC-DC power supply, so that the battery charging device provides a constant charging current, and the battery charging device is protected to a certain extent, thereby ensuring that the battery charging device can stably perform the temperature determination mode.
In one embodiment, the control module 130 is connected to the control terminal of the switch module 110, and the control module 130 outputs a signal for controlling on or off to the control terminal of the switch module 110 to control the switch module 110 to be turned on or off. In one embodiment, the output terminal of the control module 130 is connected to the control terminal of the switch module 110.
In one embodiment, the first terminal of the switch module 110 is used for connecting to a power source, the second terminal of the switch module 110 is used for connecting to a battery, and the control terminal of the switch module 110 is connected to the control module 130. In one embodiment, the switch module 110 is a field effect transistor, a source of the field effect transistor is used for being connected to a power supply, a drain of the field effect transistor is used for being connected to a battery, a gate of the field effect transistor is connected to the control module, and the control module 130 sends a voltage signal to the gate of the field effect transistor according to the temperature detected by the temperature detection module 120, so that the field effect transistor is turned on or off, and further, the power supply charges or stops charging the battery, thereby controlling the charging of the battery.
In one embodiment, the control module 130 includes a control chip, for example, the control chip is a single chip.
In one embodiment, the output terminal of the temperature detection module 120 is connected to the input terminal of the control module 130, and the output terminal of the control module 130 is further connected to the control terminal of the temperature detection module 120, so that the temperature detected by the temperature detection module 120 can be sent to the control module 130 for analysis, and the control module 130 can further control the temperature detection module 120 to operate, for example, control the temperature detection module 120 to detect the temperature of the battery at intervals after the battery is charged, so as to more accurately judge the time point when the first measured temperature reaches the first temperature threshold, thereby accurately starting timing and reducing errors; for example, the temperature detection module 120 is controlled not to detect the temperature of the battery within the preset time, the detection of the temperature of the battery within the time period has no effect, which wastes resources, and the second measured temperature detected after the preset time can be compared with the second temperature threshold value to be used as a basis for judging that the battery is fully charged.
In one embodiment, the battery charging apparatus further includes a timing module, the timing module is connected to the control module 130, and the control module 130 controls the timing module to start timing when detecting that the first measured temperature reaches the first temperature threshold, in one embodiment, the control module 130 is configured to control the timing module to transmit a rebound signal after the preset time, so that the timing module sends a rebound signal to the control module 130 after timing the preset time, and the control module 130 controls the temperature detection module 120 to detect the second measured temperature after receiving the rebound signal.
In one embodiment, the temperature detection module 120 includes a temperature sensor, a first temperature detection unit, and a signal transmission unit, wherein one end of the signal transmission unit is connected to the temperature sensor, and the other end of the signal transmission unit is connected to the control module 130; one end of the first temperature detection part is connected with the temperature sensor, and the other end of the first temperature detection part is used for being attached to the battery; the heat conduction of the battery is sensed through the contact of the first temperature detection part and the battery and is transmitted to the temperature sensor, the temperature sensor generates a temperature value, and the temperature value is transmitted to the control module through the signal transmission part. In one embodiment, the temperature detection module further comprises a second temperature detection part, the second temperature detection part is accommodated in the battery, the second temperature detection part senses the thermal radiation of the battery and transmits the thermal radiation to the temperature sensor, and thus the temperature value of the battery generated by combining the first temperature detection part and the second temperature detection part is more accurate. In one embodiment, the first temperature detection part and the second temperature detection part are both provided in plurality, so that the measured temperature value of the battery is more accurate.
As shown in fig. 2, the present invention further provides a battery charging method applied to the battery charging apparatus according to any of the above embodiments, where the battery charging method includes the following steps:
In one embodiment, as shown in fig. 3, the battery charging method includes charging a battery; detecting a first measured temperature t of the battery1Whether or not the first temperature threshold T is reached1(ii) a When the first measured temperature t1Not reaching the first temperature threshold T1Continuing to charge the battery; when the first measured temperature t1Reaching said first temperature threshold T1Detecting a second measured temperature t of the battery after a preset time deltat2Whether it is greater than or equal to the second temperature threshold T2(ii) a When the second measured temperature t2Less than the second temperature threshold T2Continuing to charge the battery; when the battery is at the second measured temperature t2Greater than or equal to the second temperature threshold T2And if so, disconnecting the power supply and stopping charging the battery.
The battery charging device and the battery charging method comprise the following steps: step 210, charging the battery. Detecting the temperature of the battery to obtain a first measured temperature t1. Detecting a first measured temperature t of the battery1Whether or not the first temperature threshold T is reached1(ii) a When the first measured temperature t1Not reaching the first temperature threshold T1Continuing to charge the battery; when the first measured temperature t1Reaching said first temperature threshold T1Detecting the temperature of the battery after a preset time deltat to obtain a second measured temperature t2. Detecting a second measured temperature t of the battery2Whether it is greater than or equal to the second temperature threshold T2(ii) a When the second measured temperature t2Less than the second temperature threshold T2Continuing to charge the battery; when the battery is at the second measured temperature t2Greater than or equal to the second temperature threshold T2And if so, disconnecting the power supply and stopping charging the battery. It can be found through experiments that when the battery is fully charged, the temperature of the battery immediately after being fully charged is the first temperature threshold value T1The temperature of the battery is changed from the first temperature threshold T after the preset time deltat1Is raised to a second temperature threshold T2(ii) a Therefore, according to the results obtained from the above experimental data, there are provided the above battery charging apparatus and battery charging method, in which the temperature of the battery is measured from the time of starting charging of the battery, i.e., the first measured temperature t1When the first measured temperature t is detected1Reaches the first temperatureThreshold value T1Starting to enter a temperature full judging mode, starting timing when entering the temperature full judging mode, and measuring the temperature of the battery at the moment after a preset time delta t, namely a second measured temperature t2If the second measured temperature t is2Reaching a second temperature threshold T2Then it can be determined that the battery is fully charged. Therefore, the battery charging device and the battery charging method not only provide a new device and a new method for judging whether the battery is fully charged, but also can accurately judge whether the battery is fully charged, and have high measuring efficiency, and the battery charging device has a simple structure and is easy to operate.
In one embodiment, as shown in FIG. 4, the first temperature threshold T1At 45 deg.C, a second temperature threshold T2At 46 ℃ and a preset time deltat of 1 minute. The battery charging method comprises the steps of charging a battery; detecting a first measured temperature t of the battery1Whether a first temperature threshold of 45 ℃ is reached; when the first measured temperature t1If the first temperature threshold value is not reached to 45 ℃, continuing to charge the battery; when the first measured temperature t1When the first temperature threshold value is reached to 45 ℃, detecting a second measured temperature t of the battery after the preset time is 1 minute2Whether greater than or equal to a second temperature threshold of 46 ℃; when the second measured temperature t2If the temperature is lower than the second temperature threshold value of 46 ℃, continuing to charge the battery; when the battery is at the second measured temperature t2And if the temperature is greater than or equal to the second temperature threshold value of 46 ℃, disconnecting the power supply and stopping charging the battery.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A battery charging apparatus, comprising:
the input end of the switch module is used for being connected with a power supply, and the output end of the switch module is used for being connected with a battery;
the temperature detection module is used for being connected with the battery and comprises a temperature sensor, a first temperature detection part and a second temperature detection part, one end of the first temperature detection part is connected with the temperature sensor, the other end of the first temperature detection part is used for being attached to the battery, the first temperature detection part is in contact with the battery to sense the heat conduction of the battery and transmit the heat conduction to the temperature sensor, the second temperature detection part is accommodated in the battery, and the second temperature detection part is used for sensing the heat radiation of the battery and transmitting the heat radiation to the temperature sensor;
the control module is respectively connected with the temperature detection module and the switch module;
the temperature detection module is used for detecting a first measured temperature of the battery and sending the detected first measured temperature to the control module;
the control module is used for detecting whether the first measured temperature reaches a first temperature threshold value; when the first measured temperature does not reach the first temperature threshold value, controlling the switch module to be kept on, and continuously charging the battery;
when the first measured temperature reaches the first temperature threshold, controlling the temperature detection module to detect whether a second measured temperature of the battery after a preset time is greater than or equal to a second temperature threshold; controlling the temperature detection module not to detect the temperature of the battery within the preset time;
when the second measured temperature is lower than the second temperature threshold, controlling the switch module to be kept on, and continuing to charge the battery; when the second measured temperature is greater than or equal to the second temperature threshold, controlling a switch unit to be turned off/closed, and stopping charging the battery;
the temperature of the battery immediately after being fully charged is the first temperature threshold, and the temperature of the battery is increased from the first temperature threshold to the second temperature threshold after the preset time.
2. The battery charging apparatus of claim 1, further comprising a power module connected to an input of the switch module.
3. The battery charging apparatus according to claim 2, wherein the number of the power modules is plural, the plural power modules are arranged in parallel, and the plural power modules are all connected to the input end of the switch module.
4. The battery charging apparatus of claim 3, wherein the power module is an AC-DC power supply.
5. The battery charging apparatus according to claim 1, wherein the switch module is a fet, a source of the fet is configured to be connected to a power module, a drain of the fet is configured to be connected to the battery, and a gate of the fet is configured to be connected to the control module.
6. The battery charging apparatus according to claim 1, wherein the temperature detection module comprises a temperature sensor, and the temperature detected by the temperature sensor is transmitted to the control module through a signal amplifier.
7. The battery charging apparatus according to claim 1, further comprising a timing module, wherein the timing module is connected to the control module, and the control module controls the timing module to start timing when detecting that the first measured temperature reaches the first temperature threshold.
8. The battery charging apparatus of claim 1, wherein the control module is connected to the control terminal of the switch module.
9. The battery charging apparatus of claim 1, wherein the first temperature threshold is less than the second temperature threshold.
10. A method of charging a battery, comprising the steps of:
charging the battery;
arranging two temperature detection parts, respectively detecting the temperature of the surface of the battery and the temperature inside the battery, and combining the two detected temperatures to obtain a first measured temperature;
detecting whether a first measured temperature of the battery reaches a first temperature threshold; when the first measured temperature does not reach the first temperature threshold, continuing to charge the battery; when the first measured temperature reaches the first temperature threshold value, detecting the temperature of the battery after preset time to obtain a second measured temperature; wherein the temperature of the battery is not detected within the preset time;
detecting whether a second measured temperature of the battery is greater than or equal to a second temperature threshold; when the second measured temperature is smaller than the second temperature threshold value, continuing to charge the battery; when the second measured temperature of the battery is greater than or equal to the second temperature threshold, disconnecting the power supply and stopping charging the battery;
the temperature of the battery immediately after being fully charged is the first temperature threshold, and the temperature of the battery is increased from the first temperature threshold to the second temperature threshold after the preset time.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2168359Y (en) * | 1993-04-01 | 1994-06-08 | 怡利电子工业股份有限公司 | Detecting device for cell temp. of charger |
| US7808212B2 (en) * | 2006-07-24 | 2010-10-05 | Research In Motion Limited | Temperature-based charge and discharge control for a battery |
| JP5098912B2 (en) * | 2008-07-11 | 2012-12-12 | ソニー株式会社 | Battery pack and charge control system |
| CN103078395B (en) * | 2013-01-07 | 2015-03-04 | 无锡必创传感科技有限公司 | Power supply dynamic route managing circuit |
| CN104052138B (en) * | 2014-05-28 | 2017-07-11 | 惠州Tcl移动通信有限公司 | The control method of temperature when a kind of intelligent mobile terminal and its charging |
| CN104104135A (en) * | 2014-07-07 | 2014-10-15 | 程宇航 | Charging apparatus, charging method and device |
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2018
- 2018-07-27 CN CN201810847160.8A patent/CN109066844B/en active Active
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