Battery heating system and battery heating method

Abstract

The present invention provides a battery heating system and a battery heating method. The battery heating system is applicable to an electronic device and includes a battery module, a light-emitting module, a battery temperature detection module, and a control module. The light-emitting module includes multiple light-emitting units. The battery temperature detection module detects a temperature of the battery module. The control module is electrically connected to the battery module, the light-emitting module, and the battery temperature detection module. When the temperature of the battery module is lower than a charging operating temperature, the control module selectively activates at least one of the light-emitting units in the light-emitting module to heat the battery module until the temperature of the battery module reaches the charging operating temperature. The battery heating system and battery heating method not only facilitate monitoring the temperature of the battery module through the control module and determining an appropriate battery heating strategy, but also effectively improve the user experience and extend battery life.

Description

Technical field

[0001] The present invention relates to a battery heating system and a battery heating method, and in particular to a battery heating system and a battery heating method utilizing a light emitting unit for heating. [Background Technology]

[0002] Lithium batteries cannot be charged at temperatures below zero degrees Celsius. When lithium batteries need to operate in low-temperature conditions, a temperature control system, such as a heat pipe, is required. However, with today's electronic devices trending towards thinner and lighter designs, it's not easy to install bulky heating systems like heat pipes.

[0003] Therefore, how to provide a simple battery heating system and method has become one of the important issues that need to be solved in this industry. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide a battery heating system in response to the shortcomings of the prior art. The battery heating system is suitable for an electronic device, and the battery heating system includes: a battery module; a light-emitting module, including a plurality of light-emitting units, and the plurality of light-emitting units are arranged in a matrix; a battery temperature detection module, detecting a temperature value of the battery module; and a control module, electrically connecting the battery module, the light-emitting module and the battery temperature detection module, wherein, when the temperature value of the battery module is lower than a charging operating temperature, the control module selectively turns on at least one of the light-emitting units in the light-emitting module to heat the battery module until the temperature value of the battery module is at the charging operating temperature.

[0005] In order to solve the above-mentioned technical problems, one of the technical solutions adopted by the present invention is to provide a battery heating method, which includes: detecting a temperature value of a battery module; and when the temperature value of the battery module is lower than a charging operating temperature, selecting at least one light-emitting unit in a light-emitting module to emit light to heat the battery module until the temperature value of the battery module is at the charging operating temperature, so that the battery module can be charged, wherein the light-emitting module is arranged adjacent to one side of the battery module.

[0006] One of the benefits of the present invention is that the battery heating system and method provided by the present invention can utilize the heat generated by the light-emitting unit in the light-emitting module for heating, and can monitor the temperature of the battery module through the control module to determine the appropriate battery heating strategy, which can effectively improve the user experience and extend the battery life.

Brief Description of the Drawings

[0007] Figure 1FIG. 1 is a schematic diagram of a battery heating system according to a first embodiment of the present invention disposed in an electronic device.

[0008] Figure 2 FIG. 1 is a schematic diagram of a battery heating system according to a first embodiment of the present invention.

[0009] Figure 3 FIG. 2 is another schematic diagram of the battery heating system according to the first embodiment of the present invention.

[0010] Figure 4 FIG. 1 is a side view of a battery heating system according to a first embodiment of the present invention.

[0011] Figure 5 FIG. 1 is a schematic diagram of a battery heating system according to a first embodiment of the present invention including a battery module.

[0012] Figure 6 FIG. 1 is a schematic diagram of a battery heating system according to a first embodiment of the present invention including two battery modules.

[0013] Figure 7 FIG. 4 is a flow chart of a battery heating method according to a second embodiment of the present invention. [Specific implementation method]

[0014] The term "or" as used herein may include any one or more combinations of the associated listed items as appropriate.

[0015] [First embodiment]

[0016] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, Figure 1 is a schematic diagram of a battery heating system according to a first embodiment of the present invention disposed in an electronic device. Figure 2 is a schematic diagram of a battery heating system according to a first embodiment of the present invention. Figure 3 is another schematic diagram of the battery heating system according to the first embodiment of the present invention. Figure 4 is a side view of a battery heating system according to a first embodiment of the present invention, Figure 5 FIG. 1 is a schematic diagram of a battery heating system according to a first embodiment of the present invention including a battery module.

[0017] like Figure 1 As shown, the electronic device ED is a tablet computer, which includes a housing 10 and a display module 15. A light emitting module 12 and a battery module 11 are disposed in the housing 10 of the electronic device ED. The housing 10 includes an upper housing 10-1 and a lower housing 10-2.

[0018] The battery heating system 1 is suitable for an electronic device ED. The battery heating system 1 includes: a battery module 11, a light-emitting module 12, a battery temperature detection module 13 and a control module 14. The electronic device ED includes a housing 10. The battery module 11, the light-emitting module 12, the battery temperature detection module 13 and the control module 14 are arranged in the housing 10 of the electronic device ED. The control module 14 is electrically connected to the battery module 11, the light-emitting module 12 and the battery temperature detection module 13.

[0019] The light emitting module 12 includes a plurality of light emitting units 121 and a circuit substrate 122. The plurality of light emitting units 121 are arranged in a matrix on the circuit substrate 122. That is, the plurality of light emitting units 121 are arranged in a matrix on a first side of the circuit substrate 122. In this embodiment, Figure 5 As shown, the multiple light-emitting units 121 are arranged in a matrix in a regular grid. However, the multiple light-emitting units 121 can also be arranged in a staggered manner in an oblique grid. The arrangement of the light-emitting units 121 can be adjusted according to the user's needs. In addition, the control module 14 can selectively turn the multiple light-emitting units 121 on or off. In other words, the control module 14 can select only one light-emitting unit 121 to turn on. The control module 14 can also select multiple adjacent light-emitting units 121 to turn on. The control module 14 can also select multiple non-adjacent light-emitting units 121 to turn on.

[0020] That is, the control module 14 can control the light emitting module 12 through a driving module (not shown) to have a local dimming function. Therefore, the control module 14 can arbitrarily select the multiple light emitting units 121 of the light emitting module 12 to turn on or off. Figure 4 As shown, direct lit local dimming is used. Compared with edge lit local dimming, it can not only obtain a better local dimming effect, but also directly heat the battery module 11 through the heat emitted by the light-emitting unit 121 to achieve a better heating effect.

[0021] The battery temperature detection module 13 is used to detect a temperature value of the battery module 11. In this embodiment, the battery module 11 is flat and has a large flat area.

[0022] In this embodiment, the battery module 11 is disposed on a second side of the circuit substrate 122. Therefore, the plurality of light-emitting units 121 and the battery module 11 are disposed on opposite sides of the circuit substrate 122. In other words, the heat energy generated by the plurality of light-emitting units 121 during operation can be transferred to the battery module 11 through the circuit substrate 122, thereby heating the battery module 11.

[0023] When the temperature of the battery module 11 is lower than a charging operating temperature, the control module 14 may selectively turn on at least one of the light-emitting units in the light-emitting module 12 to heat the battery module 11 until the temperature of the battery module 11 reaches the charging operating temperature.

[0024] In this embodiment, the battery module 11 is a lithium battery, a lithium-ion battery, or a lithium-manganese battery L. In one embodiment, the battery module 11 has a charging operating temperature between 0 and 45 degrees Celsius. That is, the battery module 11 can only be charged when the temperature is greater than 0 degrees Celsius. When the temperature of the battery module 11 is less than 0 degrees Celsius, the battery module 11 can only discharge and cannot be charged.

[0025] In this embodiment, the battery module 11 operates at a charging temperature between 0 and 45 degrees Celsius; the battery module 11 operates at a discharging temperature between -20 and 60 degrees Celsius; and the battery module 11 operates at a storage temperature between -20 and 50 degrees Celsius. Therefore, when the battery module 11 temperature is below -20 degrees Celsius, the battery module 11 cannot charge or discharge. In one embodiment, the charging, discharging, and storage temperatures of the battery module 11 vary depending on the battery specifications.

[0026] In one embodiment, the control module 14 may also default to a safe temperature range. For example, when the temperature value of the battery module 11 is within 5 degrees Celsius (i.e., the safe temperature range) from the minimum value of the charging operating temperature, the battery module 11 is started to heat up to ensure that the battery module 11 can always be at the charging operating temperature.

[0027] For example, if the charging operating temperature of the battery module 11 is between 0-45 degrees Celsius, when the temperature of the battery module 11 drops to 5 degrees Celsius, the battery module 11 can be heated to ensure that the battery module 11 remains at the charging operating temperature. In one embodiment, the safe temperature range can be 2 degrees Celsius, 3 degrees Celsius, 5 degrees Celsius, 8 degrees Celsius, or 10 degrees Celsius; in one embodiment, the safe temperature range can be determined by the user.

[0028] An area of the light emitting module 12 is greater than or equal to an area of the battery module 11 . In other words, an area of the circuit substrate 122 of the light emitting module 12 is greater than an area of the battery module 11 .

[0029] In one embodiment, the plurality of light-emitting units 121 of the light-emitting module 12 are each a light-emitting diode unit, an organic light-emitting diode unit, or a micro light-emitting diode (mini LED). The electronic device ED is a smartphone or a smart tablet computer. The battery module 11 is a lithium-ion battery, a lithium-manganese battery, or a lithium-polymer battery.

[0030] See also Figure 4 and Figure 5 As shown, the light emitting module 12 includes a plurality of light emitting units 121 and a circuit substrate 122. The light emitting units are arranged in a matrix on the circuit substrate 122. In this embodiment, the circuit substrate 122 is a flat plate. Figure 1 As shown, the area of the circuit substrate 122 is approximately equal to the area of the display module 15. In one embodiment, the area relationship between the circuit substrate 122 and the display module 15 can be determined by design requirements.

[0031] The battery module 11 is arranged on one side of the light emitting module 12. In this embodiment, the battery module 11 is arranged below the light emitting module 12. The area of the light emitting module 12 is greater than or equal to the area of the battery module 11. Figure 5 As shown, the area surrounded by the dotted line is the area of the light-emitting unit 121 in the light-emitting module 12 close to the battery module 11. In one embodiment, the control module 14 can turn on the light-emitting unit 121 in the area surrounded by the dotted line to heat the battery module 11. In one embodiment, all or part of the light-emitting units 121 in the area surrounded by the dotted line can be turned on. In one embodiment, the position or number of the light-emitting units 121 in the area surrounded by the dotted line can be determined by the designer according to needs.

[0032] In other embodiments, Figure 6 As shown, Figure 6 FIG. 1 is a schematic diagram of a battery heating system according to a first embodiment of the present invention including two battery modules.

[0033] The battery heating system 1 includes two battery modules 11 - 1 and a battery module 11 - 2 disposed in the electronic device ED. The area of the light emitting module 12 is greater than or equal to the total area of all the battery modules 11 .

[0034] In addition, when the battery heating system 1 includes two battery modules, the control module 14 can selectively heat one of the two battery modules. The control module 14 can also heat the two battery modules 11-1 and 11-2 at the same time.

[0035] When the control module 14 selectively heats the battery module 11 - 1 of the two battery modules 11 - 1 and 11 - 2 , the control module 14 may turn on the multiple light emitting units 121 of the light emitting module 12 corresponding to the battery module 11 - 1 to generate heat energy to heat the battery module 11 - 1 .

[0036] The control module 14 can turn on all the light-emitting units 121 of the light-emitting module in the area corresponding to the battery module 11-1, and the control module 14 can also partially turn on multiple light-emitting units 121 of the light-emitting module in the area corresponding to the battery module 11-1, that is, the control module 14 can choose to heat one of the multiple battery modules 11-1, 11-2 first, and the control module 14 can also select the number of light-emitting units 121 to turn on. The main judgment criterion for the control module 14 to choose to heat one of the multiple battery modules 11-1, 11-2 first can be the power of the battery module or the temperature value of each battery module.

[0037] When the control module 14 uses the power levels of the battery modules 11-1 and 11-2 as a basis for heating, the control module 14 may select the battery module 11-1 or 11-2 with the higher power level for heating. When the battery module 11-1 or 11-2 with the higher power level is heated to a temperature above the charging operating temperature, the battery module 11-1 or 11-2 with the higher power level can be charged, and the charging time is shortened, allowing the electronic device ED to operate for a longer period of time.

[0038] Of course, the control module 14 may also select one of the battery modules 11-1, 11-2 with less power to heat, and use another battery module for discharge, so as to achieve a balanced discharge process and extend the service life of the battery modules 11-1, 11-2.

[0039] When the control module 14 uses the temperature values of the battery modules 11 - 1 and 11 - 2 as a heating basis, the control module 14 may select the battery module 11 - 1 or the battery module 11 - 2 with a higher temperature for heating, thereby quickly increasing the service life of the electronic device ED.

[0040] Furthermore, the control module 14 can selectively adjust the number and positions of the light-emitting units 121 of the light-emitting module 12. Since the heat generated by each light-emitting unit 121 can be calculated based on the voltage and current provided, the control module 14 can efficiently heat the battery modules 11-1 and 11-2 based on the number of light-emitting units 121 activated and the heat generated by each light-emitting unit 121. In other words, the control module 14 can achieve highly efficient heating within a predetermined time interval based on the current charge level and temperature of the battery modules 11-1 and 11-2.

[0041] See also Figure 6As shown, for example, when the battery module 11-1 or the battery module 11-2 still has 80% power, but the temperature value of the battery module 11-1 or the battery module 11-2 is -15 degrees Celsius, the control module 14 can turn on all the light-emitting units 121 in the area corresponding to the battery module 11-1 or the battery module 11-2 to heat the battery module 11-1 or the battery module 11-2, and the battery module 11-1 or the battery module 11-2 can increase the temperature value more quickly.

[0042] When the power level of battery modules 11-1 and 11-2 is still 50%, but the temperature of battery module 11-1 or battery module 11-2 is -5 degrees Celsius, the control module 14 can turn on the light-emitting unit 121 in the area corresponding to battery module 11-1 or battery module 11-2 to heat battery module 11-1 or battery module 11-2.

[0043] That is, the control module 14 may plan a heating scheme according to the current workload of the electronic device ED, the power level of the battery module, and the temperature value of the battery module.

[0044] In this embodiment, if Figure 6 As shown, the area surrounded by the dashed line represents the light-emitting units 121 in the light-emitting module 12 near the battery modules 11-1 and 11-2. In one embodiment, the control module 14 can activate the light-emitting units 121 in the area surrounded by the dashed line to heat the battery module 11. In one embodiment, all or part of the light-emitting units 121 in the area surrounded by the dashed line can be activated. In one embodiment, the location and number of light-emitting units 121 activated in the area surrounded by the dashed line can be determined by the designer based on their needs.

[0045] In one embodiment, there is a gap between the light emitting module 12 and the battery module 11, and the heat emitted by the light emitting unit 121 is transferred to the battery module 11 through thermal radiation. Figure 4 As shown, a heat conducting module 18 is further provided between the light emitting module 12 and the battery module 11 . The heat conducting module 18 is closely disposed between the light emitting module 12 and the battery module 11 .

[0046] The heat conduction module 18 is a heat conduction pad or a heat conduction adhesive, and the control module 14 is a central processing unit (CPU), an application specific integrated circuit (ASIC), a graphics processing unit (GPU), or a microprocessor (MCU).

[0047] In one embodiment, when the temperature of the battery module 11 is lower than a charging operating temperature, the control module 14 turns on at least one of the light-emitting units in the light-emitting module 12 to a first brightness. Further, when the temperature of the battery module 11 is lower than a discharging operating temperature, the control module 14 turns on the corresponding light-emitting unit to a second brightness, wherein the second brightness is brighter than the first brightness, thereby providing more heat to heat the battery module 11, so that the battery module 11 can quickly return to the charging operating temperature.

[0048] In one embodiment, the brightness of the light-emitting unit 121, and thus the rate at which the battery module 11 is heated, can be determined by the current intensity flowing through the light-emitting unit 121. This scenario is particularly effective when the electronic device ED is at a low temperature. This is because even if the light-emitting unit 121 generates a large amount of waste heat due to the increased current intensity, part of this waste heat can be absorbed by the battery module 11, while the remaining part can be used to control the temperature of the light-emitting unit 121 due to the low temperature environment, thereby preventing damage caused by overheating due to the increased current intensity.

[0049] In one embodiment, the number of light-emitting units 121 of the light-emitting module 12 that are activated can also be used to determine the number of light-emitting units 121 that are activated. For example, when the temperature of the battery module 11 is lower than a charging operating temperature, the control module 14 activates n light-emitting units in the light-emitting module 12. Further, when the temperature of the battery module 11 is lower than a discharging operating temperature, the control module 14 activates 2n light-emitting units, where n is a positive integer.

[0050] Furthermore, in one embodiment, to ensure uniform heating, the lighting position can also be determined. For example, taking the nine light-emitting units in a 3x3 matrix on the light-emitting module 12 as an example, when the temperature of the battery module 11 is lower than a charging operating temperature, they are turned on in a staggered manner of [on, off, on; off, on, off; on, off, on]. Further, when the temperature of the battery module 11 is lower than a discharging operating temperature, they are turned on in a staggered manner of [on, on, on; on, on, on; on, on, on].

[0051] In one embodiment, the matrix-arranged light-emitting units 121 can be divided into different columns. When the temperature of the battery module 11 is below a charging operating temperature, either the odd-numbered or even-numbered columns of light-emitting units 121 are turned on. Furthermore, when the temperature of the battery module 11 is below a discharging operating temperature, all columns of light-emitting units 121 are turned on. In one embodiment, the method for turning on the light-emitting units 121 can be determined by the designer based on usage requirements.

[0052] Furthermore, when the electronic device ED is in use, the light-emitting units 121 of the light-emitting module 12 are typically turned on. In one embodiment, if the battery temperature detection module 13 detects that the temperature of the battery module 11 is below a charging operating temperature during use, the control module 14 can illuminate the light-emitting units 121 closest to the battery module 11 more brightly than the other light-emitting units 121 to heat the battery module 11.

[0053] On the other hand, in one embodiment, if the battery temperature detection module 13 detects that the temperature of the battery module 11 is about to exceed a maximum charging operating temperature, the control module 14 can make the brightness of the light-emitting unit 121 close to the battery module 11 dimmer than that of other light-emitting units 121 or turn it off to prevent additional heating of the battery module 11.

[0054] [Second embodiment]

[0055] See also Figure 7 As shown, Figure 7 FIG. 4 is a flow chart of a battery heating method according to a second embodiment of the present invention.

[0056] In this embodiment, a battery heating method is provided. The battery heating method is applicable to the battery heating system 1 and the electronic device ED in the first embodiment.

[0057] The battery heating method of this embodiment includes the following steps:

[0058] Detecting a temperature value of a battery module (step S110 );

[0059] When the temperature value of the battery module is lower than a charging operating temperature, at least one light-emitting unit in a light-emitting module is selected to emit light to heat the battery module until the temperature value of the battery module is at the charging operating temperature, so that the battery module is charged (step S120).

[0060] In step S110, the battery heating system 1 is adapted for use with an electronic device ED. The battery heating system 1 includes a battery module 11, a light-emitting module 12, a battery temperature detection module 13, and a control module 14. The electronic device ED includes a housing 10. The battery module 11, the light-emitting module 12, the battery temperature detection module 13, and the control module 14 are disposed within the housing 10 of the electronic device ED. The control module 14 is electrically connected to the battery module 11, the light-emitting module 12, and the battery temperature detection module 13.

[0061] The light-emitting module 12 includes a plurality of light-emitting units 121 and a circuit substrate 122. The light-emitting units 121 are arranged in a matrix on the circuit substrate 122. Specifically, the light-emitting units 121 are arranged in a matrix on a first side of the circuit substrate 122. Furthermore, the control module 14 can selectively turn the light-emitting units 121 on or off. Specifically, the control module 14 can select only one light-emitting unit 121 for activation. Alternatively, the control module 14 can select multiple adjacent light-emitting units 121 for activation. Alternatively, the control module 14 can select multiple non-adjacent light-emitting units 121 for activation.

[0062] That is, the control module 14 and the light module 12 have a local dimming function. Therefore, the control module 14 can arbitrarily select the plurality of light emitting units 121 of the light module 12 to turn on or off.

[0063] The battery temperature detection module 13 is used to detect a temperature value of the battery module 11. In this embodiment, the battery module 11 is flat and has a large flat area.

[0064] In step S120, when the temperature of the battery module 11 is lower than a charging operating temperature, the control module 14 can selectively turn on at least one of the light-emitting units in the light-emitting module 12 to heat the battery module 11 until the temperature of the battery module 11 is at the charging operating temperature.

[0065] In this embodiment, the battery module 11 is a lithium battery, lithium-ion battery, or lithium-manganese battery L. The battery module 11 has a charging operating temperature between 0 and 45 degrees Celsius. That is, the battery module 11 can only be charged when the temperature is above 0 degrees Celsius. When the temperature of the battery module 11 is below 0 degrees Celsius, the battery module 11 can only discharge and cannot be charged.

[0066] When the temperature of the battery module 11 is lower than -20 degrees Celsius, the battery module 11 cannot be charged or discharged.

[0067] An area of the light emitting module 12 is greater than or equal to an area of the battery module 11 . In other words, an area of the circuit substrate 122 of the light emitting module 12 is greater than an area of the battery module 11 .

[0068] The plurality of light-emitting units 121 of the light-emitting module 12 are each a light-emitting diode unit, an organic light-emitting diode unit, or a micro light-emitting diode (mini LED). The electronic device ED is a smartphone or a smart tablet computer. The battery module 11 is a lithium-ion battery, a lithium-manganese battery, or a lithium-polymer battery.

[0069] like Figure 6As shown, two battery modules 11 are provided in the electronic device ED, and the area of the light emitting module 12 is greater than or equal to the total area of all the battery modules 11 - 1 and 11 - 2 .

[0070] In addition, when the battery heating system 1 includes two battery modules, the control module 14 can selectively heat one of the two battery modules. The control module 14 can also heat the two battery modules simultaneously.

[0071] When the control module 14 selectively heats the battery module 11 - 1 of the two battery modules 11 - 1 and 11 - 2 , the control module 14 may turn on the multiple light emitting units 121 of the light emitting module 12 corresponding to the battery module 11 - 1 to generate heat energy to heat the battery module 11 - 1 .

[0072] The control module 14 can activate all light-emitting units 121 of the light-emitting module in the area corresponding to the battery module 11-1. The control module 14 can also partially activate multiple light-emitting units 121 of the light-emitting module in the area corresponding to the battery module 11-1. In other words, the control module 14 can select which of the multiple battery modules 11-1 and 11-2 to heat first. The control module 14 can also select the number of light-emitting units 121 to activate. The primary criterion for the control module 14 to select which of the multiple battery modules 11-1 and 11-2 to heat first can be the battery module charge level or the temperature of each battery module.

[0073] When control module 14 uses the charge level of battery module 11-1 or battery module 11-2 as a basis for heating, control module 14 may select the battery module 11-1 or 11-2 with the higher charge level for heating. When battery module 11-1 or battery module 11-2 with the higher charge level is heated to a temperature above the charging operating temperature, battery module 11-1 or battery module 11-2 with the higher charge level can be charged. The charging time is shortened, allowing electronic device ED to operate for a longer period of time.

[0074] Of course, the control module 14 may also select one of the battery modules 11-1, 11-2 with less power to heat, and use another battery module for discharge, so as to achieve a balanced discharge process and extend the service life of the battery modules 11-1, 11-2.

[0075] When the control module 14 uses the temperature values of the battery modules 11 - 1 and 11 - 2 as a basis for heating, the control module 14 may select the battery modules 11 - 1 and 11 - 2 with higher temperatures for heating, thereby quickly increasing the service life of the electronic device ED.

[0076] Furthermore, the control module 14 can selectively adjust the number and positions of the activated light-emitting units 121 of the light-emitting module 12. Since the heat generated by each light-emitting unit 121 can be calculated based on the supplied voltage and current, the control module 14 can efficiently heat the battery modules 11-1 and 11-2 based on the number of activated light-emitting units 121 and the heat generated by each light-emitting unit 121. In other words, the control module 14 can achieve highly efficient heating within a predetermined time interval based on the current charge level and temperature of the battery modules 11-1 and 11-2.

[0077] For example, when the battery module 11 still has 80% power, but the temperature of the battery module 11-1 or the battery module 11-2 is -15 degrees Celsius, the control module 14 can turn on all the light-emitting units 121 in the area corresponding to the battery module 11-1 or the battery module 11-2 to heat the battery module 11-1 or the battery module 11-2, and the battery module 11-1 or the battery module 11-2 can increase the temperature more quickly.

[0078] When the battery module 11-1 or the battery module 11-2 has 50% power, but the temperature of the battery module 11-1 or the battery module 11-2 is -5 degrees Celsius, the control module 14 can turn on the light-emitting unit 121 in the area corresponding to the battery module 11-1 or the battery module 11-2 to heat the battery module 11-1 or the battery module 11-2.

[0079] That is, the control module 14 may plan a heating scheme according to the current workload of the electronic device ED, the power level of the battery module, and the temperature value of the battery module.

[0080] [Beneficial Effects of Embodiments]

[0081] One of the benefits of the present invention is that the battery heating system and method provided by the present invention can utilize the heat generated by the light-emitting unit in the light-emitting module for heating, and can monitor the temperature of the battery module through the control module to determine the appropriate battery heating strategy, which can effectively improve the user experience and extend the battery life.

[0082] The contents disclosed above are only preferred feasible embodiments of the present invention and do not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the description and drawings of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A battery heating system, the battery heating system being applicable to an electronic device, characterized in that: The electronic device is a smart phone or a smart tablet computer; the battery heating system includes: a battery module; A light emitting module comprising a plurality of light emitting units arranged in a matrix; a battery temperature detection module, detecting a temperature value of the battery module; a control module electrically connected to the battery module, the light emitting module, and the battery temperature detection module; When the temperature of the battery module is lower than a charging operating temperature, the control module selectively turns on at least one of the light-emitting units in the light-emitting module to heat the battery module until the temperature of the battery module reaches the charging operating temperature. The control module controls the light emitting module through a driving module to have a regional dimming function, and the light emitting module adopts direct-type regional dimming.

2. The battery heating system according to claim 1, wherein: The charging operating temperature is between 0-45 degrees Celsius.

3. The battery heating system according to claim 1, wherein: The light emitting module further includes a circuit substrate. The plurality of light emitting units are arranged in a matrix on a first side of the circuit substrate. The battery module is arranged on a second side of the circuit substrate. The first side and the second side of the circuit substrate are opposite sides.

4. The battery heating system according to claim 1, wherein: The light emitting unit is a light emitting diode unit.

5. The battery heating system according to claim 4, wherein: The light emitting diode unit includes an organic light emitting diode unit or a micro light emitting diode (mini LED).

6. The battery heating system according to claim 1, wherein: The battery module is a lithium-ion battery.

7. The battery heating system according to claim 6, wherein: The lithium-ion battery includes a lithium-manganese battery or a lithium polymer battery.

8. The battery heating system according to claim 1, wherein: An area of the light emitting module is larger than or equal to that of the battery module.

9. The battery heating system according to claim 1, wherein: A heat conduction module is further included between the light emitting module and the battery module. The heat conduction module is closely arranged between the light emitting module and the battery module.

10. A battery heating method, characterized in that: The battery heating system according to any one of claims 1 to 9, wherein the method comprises the following steps: detecting a temperature value of a battery module; When the temperature of the battery module is lower than a charging operating temperature, at least one light-emitting unit in a light-emitting module is selected to emit light to heat the battery module until the temperature of the battery module reaches the charging operating temperature, so that the battery module is charged, wherein the light-emitting module is disposed adjacent to one side of the battery module; The light emitting module has a regional dimming function, and the light emitting module adopts direct-down regional dimming.

11. The battery heating method according to claim 10, wherein: Also includes: When the temperature of the battery module is at the charging operating temperature, at least one of the light-emitting units of the light-emitting module is turned off, wherein the charging operating temperature is between 0-45 degrees Celsius.

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