CN211629880U - Charging device and electronic equipment - Google Patents
Charging device and electronic equipment Download PDFInfo
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- CN211629880U CN211629880U CN201921560372.4U CN201921560372U CN211629880U CN 211629880 U CN211629880 U CN 211629880U CN 201921560372 U CN201921560372 U CN 201921560372U CN 211629880 U CN211629880 U CN 211629880U
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Abstract
The utility model relates to a battery charging outfit technical field especially relates to a charging device and electronic equipment. The charging device is applied to an automobile diagnosis panel, the automobile diagnosis panel comprises an automobile diagnosis system and a battery, and the charging device comprises: the first charging module is used for respectively providing direct-current voltage for the automobile diagnosis system and providing first charging current for the battery; the second charging module is used for providing a second charging current for the battery, wherein the first charging current and the second charging current charge the battery; and the microprocessor is respectively electrically connected with the first charging module and the second charging module and is used for controlling the first charging module and the second charging module to charge the battery. The battery can be charged simultaneously through the first charging module and the second charging module, and the charging current is controllable, so that the charging efficiency can be improved, the equipment can be charged quickly, and the cruising ability of the equipment is improved.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a battery charging outfit technical field especially relates to a charging device and electronic equipment.
[ background of the invention ]
In the era of rapid development of network informatization, automobile diagnostic personnel often need to utilize a high-definition display screen to interact through images, sounds, videos and texts, acquire and make rich multimedia automobile diagnostic cases, and utilize wireless WIFI and Bluetooth to transmit big data so as to meet urgent needs, thereby simultaneously causing the increase of the power consumption of the whole automobile and enabling the charging time of a battery to become a factor influencing the customer experience. In addition, different charging control methods have great influence on the performance and the service life of the lithium ion battery.
[ Utility model ] content
The to-be-solved technical problem of the utility model is to provide a charging device and electronic equipment to the realization is treated the battery charging outfit and is charged fast, and improves the performance of treating the battery charging outfit.
The utility model discloses an aspect of the embodiment provides a charging device, and it is dull and stereotyped to be applied to the automotive diagnosis, the automotive diagnosis is dull and stereotyped including automotive diagnosis system and battery, charging device includes:
the first charging module is used for respectively providing direct-current voltage for the automobile diagnosis system and providing first charging current for the battery;
the second charging module is used for providing a second charging current for the battery, wherein the first charging current and the second charging current charge the battery; and
and the microprocessor is respectively electrically connected with the first charging module and the second charging module and is used for controlling the first charging module and the second charging module to charge the battery.
Optionally, the microprocessor is configured to control the first charging module and the second charging module to charge the battery, and includes:
in the constant current charging stage, the first charging module and the second charging module are controlled to charge the battery;
and when the battery voltage of the battery reaches a preset cut-off voltage, controlling the first charging module and the second charging module to enter a constant-voltage charging stage.
Optionally, the microprocessor is configured to control the first charging module and the second charging module to enter a constant voltage charging stage when the battery voltage of the battery reaches a preset cut-off voltage, and includes:
when the second charging current of the second charging module is smaller than or equal to the first preset cut-off current, stopping the second charging module from charging the battery;
and controlling the first charging module to continue charging the battery.
Optionally, the microprocessor is configured to control the first charging module to continue charging the battery, and includes:
and when the first charging current of the first charging module is smaller than or equal to a second preset cut-off current, stopping the first charging module from charging the battery.
Optionally, the first charging module includes a first charging chip and a first inductor, the first charging chip is respectively connected to the microprocessor and the first inductor,
the first charging chip is used for providing direct-current voltage for the automobile diagnosis system through the first inductor and providing first charging current for the battery.
Optionally, the first inductor is configured to form a BUCK step-down circuit topology structure to output a dc voltage, where when an internal resistance value of the first inductor is within a first preset range, the first inductor is configured to reduce power consumption of the first charging module.
Optionally, the second charging module includes a second charging chip and a second inductor, the second charging chip is respectively connected to the microprocessor and the second inductor,
the second charging chip is used for providing a second charging current for the battery through the second inductor.
Optionally, the second charging chip is a three-level switching power supply.
Optionally, the second inductor is configured to form a BUCK step-down circuit topology structure to output a dc voltage, where when an internal resistance value of the second inductor is within a second preset range, the second inductor is configured to reduce power consumption of the second charging module.
Optionally, the charging device further includes an adapter, the adapter is electrically connected to the first charging module and the second charging module, respectively, and the adapter is configured to provide a charging power supply to the first charging module and the second charging module.
In another aspect of the embodiments of the present invention, an electronic device is provided, which includes the charging device as described above.
The embodiment of the utility model provides a charging device and electronic equipment, this charging device can be applied to the automotive diagnosis flat board, and the automotive diagnosis flat board includes automotive diagnosis system and battery, charging device includes first charging module, second charging module and microprocessor, first charging module is used for providing DC voltage for the automotive diagnosis flat board to for the battery provides first charging current, the second charging module is used for providing the second charging current for the battery, wherein, first charging current and second charging current all are used for charging for the battery. The microprocessor is used for controlling the first charging module and the second charging module to charge the battery. In this embodiment, the battery can be charged simultaneously through the first charging module and the second charging module, and the charging current is controllable, so that the charging efficiency can be improved, the device can be charged quickly, and the cruising ability of the device is improved.
[ description of the drawings ]
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a charging device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a charging device according to another embodiment of the present invention;
fig. 3 is a circuit diagram of a DCDC voltage reduction circuit according to an embodiment of the present invention;
fig. 4 is a flowchart of a charging method according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for controlling the first charging module and the second charging module to charge the battery by the microprocessor according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It should be noted that, if there is no conflict, the features in the embodiments of the present invention may be combined with each other, and all are within the scope of the present invention. Additionally, while functional block divisions are performed in the device diagrams, with logical sequences shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than the block divisions in the device diagrams, or the flowcharts.
Referring to fig. 1, an embodiment of the present invention provides a charging device 100, where the charging device 100 may be applied to an automobile diagnosis tablet, where the automobile diagnosis tablet includes an automobile diagnosis system and a battery, and the charging device 100 includes: the charging system comprises a first charging module 10, a second charging module 20 and a microprocessor 30, wherein the microprocessor 30 is electrically connected with the first charging module 10 and the second charging module 20 respectively.
The first charging module 10 is used for supplying power to the automobile diagnosis tablet system and charging the battery, and the second charging module 20 is used for charging the battery. Specifically, the first charging module 10 outputs a dc voltage to the vehicle diagnostic tablet system, and outputs a first charging current to the battery, and the second charging module 20 outputs a second charging current to the battery.
The dc voltage, the first charging current and the second charging current are adjustable and can be set by the microprocessor 30. For example, the microprocessor 30 is connected to the first charging module 10 and the second charging module 20 through an I2C bus, and the microprocessor 30 modifies an internal register of the first charging module 10 and modifies an internal register of the second charging module 20 through the I2C bus, so as to adjust the dc voltage, the first charging current and the second charging current.
The microprocessor 30 is configured to set a dc voltage and a first charging current output by the first charging module 10, and set a second charging current output by the second charging module 20. The sum of the current corresponding to the dc voltage and the first charging current is the current output by the first charging module 10, the magnitudes of the dc voltage and the first charging current can be distributed by the microprocessor 30 according to actual situations, and the microprocessor 30 is further configured to control the first charging module 10 and the second charging module 20 to charge the battery.
In this embodiment, the basic operation principle of the charging device 100 is as follows: when the charging device 100 is required to charge the automotive diagnostic panel, firstly, the microprocessor 30 detects whether the charging device 100 is externally connected with a power supply, if so, the microprocessor 30 sets relevant parameters of the first charging module 10 and the second charging module 20, such as charging current, charging cut-off voltage, charging cut-off current and the like; then, the microprocessor 30 controls the first charging module 10 and the second charging module 20 to enter a fast charging phase, i.e. a constant current charging phase, and controls the first charging module 10 and the second charging module 20 to charge the battery in the charging process; when the voltage of the charged battery reaches the charge cut-off voltage, controlling the first charging module 10 and the second charging module 20 to enter a constant voltage charging stage, wherein the charging current is gradually reduced; when the charging current reaches the preset cutoff current of the second charging module 20, the microprocessor 30 turns off the charging function of the second charging module 20, the first charging module 10 continues to complete the constant voltage charging process, and the charging current of the first charging module 10 continues to decrease; when the charging current of the first charging module 10 reaches the preset cut-off current of the first charging module 10, the microprocessor 30 turns off the charging function of the first charging module 10, and the charging is finished.
The charging device 100 is described in detail below with reference to the drawings.
Referring to fig. 2, the first charging module 10 includes a first charging chip 101 and a first inductor 102, and the first charging chip 101 is electrically connected to the microprocessor 30 and the first inductor 102, respectively. The first charging chip 101 may be a lithium battery charging module circuit, which can implement a process from constant current charging to constant voltage charging. The first inductor 102 is configured to form a BUCK step-down circuit topology structure to output a dc voltage, wherein when an internal resistance value of the first inductor 102 is within a first preset range, the first inductor 102 is configured to reduce power consumption of the first charging module 10. The first inductor 102 may have a size of 1uH to 2uH, a first preset range corresponding to an internal resistance of the first inductor may be greater than 0 and less than or equal to 0.01 ohm, the first preset range may also be other numerical value ranges, and the smaller the internal resistance value of the first inductor 102, the more the power consumption of the first charging module 10 can be reduced. The first charging chip 101 and the first inductor 102 together form a DC-DC voltage reduction circuit, the DC-DC voltage reduction circuit can generate an adjustable output voltage VSYS1, the adjustable output voltage VSYS1 can be input to a vehicle diagnostic tablet system or a battery, the magnitude of the adjustable output voltage VSYS can be controlled by the microprocessor 30, and the microprocessor 30 can modify an internal register of the first charging chip 101 through I2C, so as to adjust the charging voltage VSYS. For example, the microprocessor 30 may input a corresponding signal to the first charging chip 101 to control the on/off time of the DC-DC voltage reduction circuit, so as to adjust the magnitude of the output voltage. Specifically, for example, when the charging device 100 is applied to an automobile diagnosis panel, and the current maximum output capacity of the first charging chip 101 is 5A, the microprocessor 30 may control the first charging chip 101 to output 2A current for supplying power to a system of the automobile diagnosis panel and output 3A current for charging a battery of the automobile diagnosis panel through the DC-DC voltage reduction circuit. It should be noted that the maximum current output capability 5A of the first charging chip 101 is determined by the integrated MOS internal resistance inside the first charging chip 101, and the maximum current output capability of the first charging chip 101 can be adjusted accordingly by changing the value of the MOS internal resistance, and in addition, the first charging chip 101 outputs a dc voltage to the vehicle diagnostic panel, and the current consumption thereof is determined by the system power consumption, which may be 0.5A, 1A, or the like, in addition to 2A.
In some embodiments, the first charging module 10 may further include a first output terminal and a second output terminal, the first output terminal has one end connected to the first inductor 102 and the other end connected to the vehicle diagnostic tablet system, and the second output terminal has one end connected to the first inductor 102 and the other end connected to the battery. The first output end is used for outputting the direct current voltage, and the second output end is used for outputting the first charging current.
Referring to fig. 2, the second charging module 20 includes a second charging chip 201 and a second inductor 202, and the second charging chip 201 is electrically connected to the microprocessor 30 and the second inductor 202, respectively.
The second charging chip 201 may be a three-level switching power supply, the three-level switching power supply forms a DCDC voltage reduction circuit by externally connecting the second inductor 202, the DCDC voltage reduction circuit generates an adjustable output voltage VSYS2, the adjustable output voltage VSYS2 is used for charging a battery, the size of the adjustable output voltage VSYS can be controlled by the microprocessor 30, and the microprocessor 30 can modify an internal register of the second charging chip 201 through I2C to adjust the charging voltage. The DCDC voltage dropping circuit may be specifically shown in fig. 3, and the DCDC voltage dropping circuit shown in fig. 3 includes the second charging chip 201 and the second inductor 202. It should be noted that fig. 3 is only an example of the DCDC drop circuit, and is not intended to limit the DCDC drop circuit.
The second inductor 202 is configured to form a BUCK step-down circuit topology structure to output a dc voltage, wherein when an internal resistance value of the second inductor 202 is within a second preset range, the second inductor 202 is configured to reduce power consumption of the second charging module 20. The size of the second inductor 202 may be greater than or equal to 0.33 microhenry and less than or equal to 0.47 microhenry, a second preset range corresponding to the internal resistance of the second inductor 202 may be greater than 0 and less than or equal to 0.01 ohm, the second preset range may also be other numerical value ranges, and the smaller the internal resistance value of the second inductor 202, the more the power consumption of the second charging module 20 can be reduced.
In some embodiments, the second charging module 20 may further include a third output terminal, the third output terminal is connected to the second inductor 202, and the third output terminal is used for outputting the second charging current to charge the battery.
In some embodiments, the number of the first inductor 102 externally attached to the first charging chip 101 and the number of the second inductor 202 externally attached to the second charging chip 201 may be adjusted according to practical application, and is not limited to only externally attaching one first inductor 102 and one second inductor 202, respectively, as long as the total inductance value satisfies the preset range.
Referring to fig. 2, the charging device 100 further includes an adapter 40, the adapter 40 is electrically connected to the first charging module 10 and the second charging module 20, specifically, the adapter 40 is connected to the first charging chip 101 and the second charging chip 201, respectively, the adapter is configured to provide charging power to the first charging chip 101 and the second charging chip 201, and protocol communication is not involved in a process of supplying current to the first charging chip 101 and the second charging chip 201 by the adapter 40.
In this embodiment, two charging chips may be used in combination to achieve the fastest charging speed with the lowest power consumption. For example, when the vehicle diagnosis panel is in an on state, the charging device 100 may be used to charge a vehicle diagnosis panel, and when the vehicle diagnosis panel is in the on state, the microprocessor 30 may control the first charging chip 101 to output a charging current of 5A and the second charging chip 201 to output a charging current of 6A, where the first charging chip 101 outputs a current of 2A to power the vehicle diagnosis panel, the first charging chip 101 also outputs a current of 3A to charge a battery, and the second charging chip 201 outputs a current of 6A to charge the battery, so that the battery may be charged with a charging current of 9A; when the automobile diagnosis tablet personal computer is in a shutdown state, the microprocessor 30 controls the first charging chip 101 to output a charging current of 5A to charge the battery, and the microprocessor 30 controls the second charging chip 201 to output a charging current of 6A to charge the battery, so that the charging current of 11A can be supplied to the battery. Compared with the prior art, the charging speed of the battery is obviously improved.
The embodiment of the utility model provides a charging device, this charging device can be applied to the automotive diagnosis flat board, and the automotive diagnosis flat board includes automotive diagnosis system and battery, charging device includes first charging module, second charging module and microprocessor, first charging module is used for providing DC voltage for the automotive diagnosis flat board to for the battery provides first charging current, the second charging module is used for providing second charging current for the battery, wherein, first charging current and second charging current all are used for charging for the battery. The microprocessor is used for controlling the first charging module and the second charging module to charge the battery. In this embodiment, the battery can be charged simultaneously through the first charging module and the second charging module, and the charging current is controllable, so that the charging efficiency can be improved, the device can be charged quickly, and the cruising ability of the device is improved.
Based on the above charging device 100, the embodiment of the present invention further provides a charging method, the method is applied to a vehicle diagnosis tablet, the vehicle diagnosis tablet includes a vehicle diagnosis system and a battery, the charging method is executed by the above charging device, please refer to fig. 4, and the charging method includes:
s101, when charging of the charging device is detected, the microprocessor sets charging currents of the first charging module and the second charging module, wherein the charging currents comprise direct-current voltage, first charging current and second charging current;
s102, the microprocessor controls the direct current voltage to be output to the automobile diagnosis system;
s103, the microprocessor controls the first charging module and the second charging module to charge the battery.
The first charging module outputs the direct current voltage and the first charging current, and the second charging module outputs the second charging current.
Referring to fig. 5, the microprocessor controls the first charging module and the second charging module to charge the battery, including:
step S1031, in the constant current charging stage, controlling the first charging module and the second charging module to charge the battery;
and S1032, when the battery voltage of the battery reaches a preset cut-off voltage, controlling the first charging module and the second charging module to enter a constant voltage charging stage.
In the constant-voltage charging stage, when a second charging current of the second charging module is smaller than or equal to a first preset cut-off current, the second charging module stops charging the battery; and when the first charging current of the first charging module is smaller than or equal to a second preset cut-off current, stopping the first charging module from charging the battery.
In some embodiments, when the vehicle diagnostic system is in a power-off state, the charging method further includes: the microprocessor adjusts the direct current voltage to be zero, and adjusts the first charging current to be the maximum current of the first charging module; and the microprocessor charges the battery according to the maximum current and the second charging current.
The steps S101 to S103 are executed by the charging device 100 in the above embodiment, and specific implementation thereof may refer to the above embodiment of the charging device, and details are not described herein again.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, as shown in fig. 6, the electronic device 200 includes: the charging device 100, the system device 201, and the energy storage device 202 according to the above embodiments. The system device 201 is connected to the first charging module 10, and the energy storage device 202 is connected to the first charging module 10 and the second charging module 20.
In this embodiment, the charging device 100 is configured to provide electric energy to the system device 201 through the first charging module 10, and charge the energy storage device 202 through the first charging module 10 and the second charging module 20. When the electronic device 200 is in the power-off state, all the current of the first charging module 10 is used to charge the energy storage device 202.
The energy storage device 201 may specifically be a battery or a battery pack, and the system device 202 may specifically be a system module of the electronic device 200.
In this embodiment, the electronic device may be a product including any large-capacity battery, and the electronic device includes: the system comprises an automobile diagnosis tablet personal computer, automobile anti-theft product detection equipment, four-wheel aligner detection equipment, an automobile emergency power supply and the like.
An embodiment of the utility model provides an electronic equipment, electronic equipment includes charging device, energy memory and system's device, charging device includes first module, the second that charges, microprocessor and adapter, first module of charging is used for exporting direct current voltage to give system's device, first module of charging still is used for exporting first charging current to give energy memory, the second module of charging is used for exporting second charging current to give energy memory, and can pass through microprocessor adjusts direct current voltage, first charging current and second charging current's size to realize electronic equipment's quick charge, improve electronic equipment's duration.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a general hardware platform, and certainly can also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. A charging device is applied to an automobile diagnosis panel, the automobile diagnosis panel comprises an automobile diagnosis system and a battery, and the charging device is characterized by comprising:
the first charging module is used for respectively providing direct-current voltage for the automobile diagnosis system and providing first charging current for the battery;
the second charging module is used for providing a second charging current for the battery, wherein the first charging current and the second charging current charge the battery; and
and the microprocessor is respectively electrically connected with the first charging module and the second charging module and is used for controlling the first charging module and the second charging module to charge the battery.
2. The charging device of claim 1, wherein the first charging module comprises a first charging chip and a first inductor, the first charging chip is connected to the microprocessor and the first inductor respectively,
the first charging chip is used for providing direct-current voltage for the automobile diagnosis system through the first inductor and providing first charging current for the battery.
3. The charging device according to claim 2, wherein the first inductor is configured to form a BUCK step-down circuit topology to output the dc voltage, and wherein the first inductor is configured to reduce the power consumption of the first charging module when an internal resistance value of the first inductor is within a first predetermined range.
4. The charging device according to any one of claims 1 to 3, wherein the second charging module comprises a second charging chip and a second inductor, the second charging chip is respectively connected with the microprocessor and the second inductor,
the second charging chip is used for providing a second charging current for the battery through the second inductor.
5. The charging device of claim 4, wherein the second charging chip is a three-level switching power supply.
6. The charging device according to claim 4, wherein the second inductor is configured to form a BUCK step-down circuit topology to output the dc voltage, and wherein the second inductor is configured to reduce the power consumption of the second charging module when an internal resistance value of the second inductor is within a second predetermined range.
7. The charging device of claim 4, further comprising adapters electrically connected to the first charging module and the second charging module, respectively,
the adapter is used for providing charging power for the first charging module and the second charging module.
8. An electronic device characterized in that it comprises a charging apparatus according to any one of claims 1 to 7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110601295A (en) * | 2019-09-18 | 2019-12-20 | 深圳市道通科技股份有限公司 | Charging device, charging method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110601295A (en) * | 2019-09-18 | 2019-12-20 | 深圳市道通科技股份有限公司 | Charging device, charging method and electronic equipment |
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