CN217545626U - Charging device of electronic equipment - Google Patents
Charging device of electronic equipment Download PDFInfo
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- CN217545626U CN217545626U CN202221001440.5U CN202221001440U CN217545626U CN 217545626 U CN217545626 U CN 217545626U CN 202221001440 U CN202221001440 U CN 202221001440U CN 217545626 U CN217545626 U CN 217545626U
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Abstract
The application aims to provide a charging device of electronic equipment. Specifically, the apparatus comprises: the charging device comprises a control unit, a temperature sensing module, a charging module, a first current control module and a second current control module; the control unit is respectively connected with the temperature sensing module, the charging module, the first current control module and the second current control module, and the charging module is respectively connected with the first current control module and the second current control module. Further, the temperature sensing module comprises an NTC thermistor for acquiring ambient temperature information. The control unit comprises an MCU (microprogrammed control unit) and is used for processing environmental temperature information and controlling the charging module, the first current control module and the second current control module. Compared with the prior art, the problem of prolonging the service life of the battery while reducing the cost is solved.
Description
Technical Field
The present application relates to the field of electronic devices, and in particular, to a charging device for an electronic device.
Background
Electronic devices such as smart phones, tablet computers, smart watches, wireless headsets and the like generally employ lithium batteries. Under different temperature conditions, the charging current of the lithium battery in the constant current stage is different. Taking a wireless headset as an example, a low-end product generally adopts a low-cost charging management chip for controlling cost, and the low-cost charging management chip generally fixes constant-current charging current; this design results in an excessive charging current of the lithium battery at a low or high temperature, and the lithium battery may be damaged if left in this state for a long time.
SUMMERY OF THE UTILITY MODEL
An object of the present application is to provide a charging device for an electronic device to solve the problem of extending the service life of a battery while reducing the cost.
In order to achieve the above object, an embodiment of the present application provides a charging apparatus for an electronic device, where the apparatus includes:
the device comprises a control unit, a temperature sensing module, a charging module, a first current control module and a second current control module;
the control unit is respectively connected with the temperature sensing module, the charging module, the first current control module and the second current control module, and the charging module is respectively connected with the first current control module and the second current control module.
Further, the temperature sensing module comprises an NTC thermistor for acquiring ambient temperature information.
Further, the charging module includes a charging management chip for charging a lithium battery of the electronic device.
Further, the control unit includes an MCU for processing ambient temperature information and controlling the charging module, the first current control module, and the second current control module.
Further, the control unit is configured to: when the environment temperature information is lower than a first temperature threshold value or higher than a fourth temperature threshold value, the charging module is closed; when the environment temperature information is higher than a second temperature threshold and lower than a third temperature threshold, closing the first current control module and the second current control module, and opening the charging module; and when the environment temperature information is higher than the first temperature threshold and lower than the second temperature threshold, or higher than the third temperature threshold and lower than the fourth temperature threshold, turning on the charging module, the first current control module and the second current control module.
Further, the electronic device is a wireless headset device including a headset and a charging box.
Further, the control unit, the temperature sensing module, the charging module, the first current control module and the second current control module are installed inside the earphone or the charging box.
In an embodiment of the present application, the charging apparatus for an electronic device includes: the device comprises a control unit, a temperature sensing module, a charging module, a first current control module and a second current control module; the control unit is respectively connected with the temperature sensing module, the charging module, the first current control module and the second current control module, and the charging module is respectively connected with the first current control module and the second current control module. Further, the temperature sensing module comprises an NTC thermistor for acquiring ambient temperature information. The control unit comprises an MCU (microprogrammed control unit) and is used for processing environmental temperature information and controlling the charging module, the first current control module and the second current control module. Compared with the prior art, the problem of prolonging the service life of the battery while reducing the cost is solved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic block diagram of a charging apparatus of an electronic device according to an embodiment of the present application;
fig. 2 is a schematic circuit structure diagram of a charging device of an electronic device according to an embodiment of the present application.
The same or similar reference numbers in the drawings identify the same or similar elements.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, an embodiment of the present application provides a charging apparatus for an electronic device, where the apparatus includes: the device comprises a control unit, a temperature sensing module, a charging module, a first current control module and a second current control module; the control unit is respectively connected with the temperature sensing module, the charging module, the first current control module and the second current control module, and the charging module is respectively connected with the first current control module and the second current control module.
For example, in different temperature states such as too low temperature, normal temperature, high temperature, too high temperature, the control unit can set different charging currents for different temperature states by turning on or off the first current control module and the second current control module, so that the service life of the battery can be prolonged while the cost is reduced.
In some embodiments, as shown in fig. 2, the first current control module comprises an NMOS and a configured internal resistance; and the GPIO of the control unit has no special requirement and only needs to be simply pulled up and down. The second current control module comprises a configuration resistor, and certain requirements are placed on GPIO of the control unit, and the configuration resistor needs to be configured into a specific state.
In some embodiments, the Temperature sensing module includes an NTC (Negative Temperature CoeffiCient) thermistor for acquiring the ambient Temperature information. The NTC thermistor is a thermal sensitive ceramic component which is made of transition metal oxide serving as a main raw material and adopting an electronic ceramic process.
In some embodiments, the charging module includes a charging management chip for charging a lithium battery of the electronic device. For example, the electronic device may include, but is not limited to, a smartphone, a tablet, a smart watch, a wireless headset, and the like. In a specific embodiment, the charging module may employ a low-cost charging management chip, so as to reduce the manufacturing cost of the electronic device.
In some embodiments, the Control Unit includes an MCU (Micro Control Unit, microprocessor) configured to process the ambient temperature information obtained by the temperature sensing module and Control the charging module, the first current Control module, and the second current Control module.
In some embodiments, the control unit is to: when the environment temperature information is lower than a first temperature threshold value or higher than a fourth temperature threshold value, the charging module is closed; when the environment temperature information is higher than a second temperature threshold and lower than a third temperature threshold, closing the first current control module and the second current control module, and opening the charging module; and when the environment temperature information is higher than the first temperature threshold and lower than the second temperature threshold, or higher than the third temperature threshold and lower than the fourth temperature threshold, turning on the charging module, the first current control module and the second current control module.
For example, a first temperature threshold, a second temperature threshold, a third temperature threshold, and a fourth temperature threshold may be set; if the environmental temperature information is lower than the first temperature threshold value, the state is determined to be a low temperature state; if the environmental temperature information is higher than the first temperature threshold and lower than the second temperature threshold, the low-temperature state is determined; if the environmental temperature information is higher than the second temperature threshold and lower than the third temperature threshold, the normal temperature state is determined; if the environmental temperature information is higher than the third temperature threshold and lower than the fourth temperature threshold, the high temperature state is determined; and if the environment temperature information is higher than the fourth temperature threshold value, the high temperature state is determined. And under the over-low temperature state and the over-high temperature state, the control unit closes the charging module. In a normal temperature state, the control unit closes the first current control module and the second current control module and only opens the charging module; and charging the charging current of the constant current section according to the maximum current allowed by the normal temperature interval of the battery. In a low-temperature state and a high-temperature state, the control unit opens the charging module and also opens the first current control module or the second current control module; and reducing the charging current of the constant current section to the maximum current allowed by the temperature interval of the battery for charging.
In some embodiments, the electronic device housing the charging apparatus is a wireless headset device comprising a headset and a charging box. In some embodiments, the control unit, the temperature sensing module, the charging module, the first current control module and the second current control module are mounted inside the headset or the charging case.
To sum up, this application embodiment can realize setting up different charging current for different temperature state under the condition that electronic equipment adopted low-cost charge management chip to can prolong battery life when reduce cost.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is to be understood that the term "comprises" does not exclude other elements or structures, and the singular does not exclude the plural. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (6)
1. An apparatus for charging an electronic device, wherein the apparatus comprises:
the device comprises a control unit, a temperature sensing module, a charging module, a first current control module and a second current control module;
the control unit is respectively connected with the temperature sensing module, the charging module, the first current control module and the second current control module, and the charging module is respectively connected with the first current control module and the second current control module.
2. The apparatus of claim 1, wherein the temperature sensing module comprises an NTC thermistor for acquiring ambient temperature information.
3. The apparatus of claim 1, wherein the charging module comprises a charging management chip to charge a lithium battery of the electronic device.
4. The apparatus of claim 1, wherein the control unit comprises an MCU to process ambient temperature information and control the charging module, the first current control module, and the second current control module.
5. The apparatus of any of claims 1-4, wherein the electronic device is a wireless headset device comprising a headset and a charging box.
6. The device of claim 5, wherein the control unit, the temperature sensing module, the charging module, the first current control module and the second current control module are mounted inside the headset or the charging box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221001440.5U CN217545626U (en) | 2022-04-26 | 2022-04-26 | Charging device of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221001440.5U CN217545626U (en) | 2022-04-26 | 2022-04-26 | Charging device of electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217545626U true CN217545626U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221001440.5U Active CN217545626U (en) | 2022-04-26 | 2022-04-26 | Charging device of electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217545626U (en) |
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2022
- 2022-04-26 CN CN202221001440.5U patent/CN217545626U/en active Active
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