CN217956717U - Power supply assembly and terminal equipment - Google Patents
Power supply assembly and terminal equipment Download PDFInfo
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- CN217956717U CN217956717U CN202220957709.0U CN202220957709U CN217956717U CN 217956717 U CN217956717 U CN 217956717U CN 202220957709 U CN202220957709 U CN 202220957709U CN 217956717 U CN217956717 U CN 217956717U
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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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Abstract
The utility model discloses a power supply unit and terminal equipment, this power supply unit includes: the power interface is used for accessing an external power supply; the battery mounting groove is used for placing a battery; the first input end of the charging and discharging circuit is connected with the power interface, and the charging output end of the charging and discharging circuit is connected with the battery mounting groove and used for converting an external power supply into charging voltage and outputting the charging voltage to the battery for charging when the first input end is detected to be electrified; the control assembly is connected with the battery mounting groove and the charging and discharging circuit; and the output end of the input assembly is connected with the control assembly and is used for receiving a charging mode selection instruction input by a user and outputting a corresponding charging mode selection signal, so that the control assembly selects a corresponding charging mode according to the charging mode selection signal and controls the charging and discharging circuit to regulate the charging current output to the battery in the charging mode. The utility model discloses can solve the relatively poor problem of terminal equipment's power supply system compatibility.
Description
Technical Field
The utility model relates to an equipment power supply technical field, in particular to power supply assembly and terminal equipment.
Background
At present, in a terminal device, a used rechargeable battery is usually a rechargeable battery with a fixed number of battery cells and a fixed capacity, so that a power supply system of the terminal device is also a set of system adapted to the rechargeable battery, and a user can only use one fixed rechargeable battery, which cannot meet the specific scene that some terminal devices need to replace different batteries for use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power supply unit, the relatively poor problem of power supply system compatibility that aims at solving current terminal equipment.
In order to achieve the above object, the utility model provides a power supply module, include:
the power interface is used for accessing an external power supply;
the battery mounting groove is used for placing a battery;
the first input end of the charging and discharging circuit is connected with the power interface, the charging output end of the charging and discharging circuit is connected with the battery mounting groove, and the charging and discharging circuit is used for converting the external power supply into charging voltage and outputting the charging voltage to the battery mounting groove when the first input end is detected to be powered on so as to charge the battery;
the control assembly is connected with the battery mounting groove and the charging and discharging circuit;
the output end of the input assembly is connected with the control assembly, and the input assembly is used for receiving a charging mode selection instruction input by a user and outputting a corresponding charging mode selection signal, so that the control assembly selects a corresponding charging mode according to the charging mode selection signal and controls the charging and discharging circuit to adjust the charging current output to the battery in the charging mode.
Optionally, the power supply assembly further comprises:
the output end of the quick charging trigger assembly is connected with the control assembly, and the quick charging trigger assembly is used for receiving a quick charging mode selection instruction input by a user and outputting a quick charging mode selection signal;
and the control assembly is also used for selecting a corresponding quick charging mode according to the quick charging mode selection signal when receiving the quick charging mode selection signal, and controlling the charging and discharging circuit to regulate the charging current output to the battery in the quick charging mode.
Optionally, the charging and discharging circuit has a second input end and a power supply output end, the second input end of the charging and discharging circuit is connected with the battery installation groove, and the power supply output end of the charging and discharging circuit is connected with the main board;
the charging and discharging circuit is used for converting the external power supply into power supply voltage and outputting the power supply voltage to the mainboard when the first input end is detected to be powered on so as to supply power to the mainboard;
and the charging and discharging circuit is also used for converting the voltage output by the battery into a power supply voltage and outputting the power supply voltage to the mainboard when the first input end is detected to be powered off and the second input end is detected to be powered on so as to supply power to the mainboard.
Optionally, the charging and discharging circuit includes:
a first power supply end of the power supply switching circuit is connected with the power interface, a second power supply end of the power supply switching circuit is connected with the battery mounting groove, and an output end of the power supply switching circuit is connected with the mainboard;
a power-on detection circuit, a first detection end of which is connected with the power interface, a second detection end of which is connected with the battery mounting groove, and the power-on detection circuit is used for outputting a first detection signal when detecting that the first detection end is powered on and outputting a second detection signal when detecting that the first detection end is powered off and the second detection end is powered on;
the receiving end of the charging and discharging control circuit is connected with the power-on detection circuit, the power supply control end of the charging and discharging control circuit is connected with the controlled end of the power supply switching circuit, and the charging and discharging control circuit is used for controlling the power supply switching circuit to communicate the power interface and the mainboard when receiving the first detection signal so that an external power supply supplies power to the mainboard;
and the charge and discharge control circuit is also used for controlling the power supply switching circuit to be communicated with the battery mounting groove and the mainboard when receiving the second detection signal, so that the battery supplies power to the mainboard.
Optionally, the charging and discharging circuit further includes:
the input end of the charging circuit is connected with the output end of the power supply switching circuit, the output end of the charging circuit is connected with the battery mounting groove, the controlled end of the charging circuit is connected with the charging control end of the charging and discharging control circuit, and the charging circuit is used for converting an external power supply into charging voltage and outputting the charging voltage to the battery mounting groove so as to charge the battery;
the charging and discharging control circuit is further connected with the control assembly and is further used for receiving the charging control signal output by the control assembly and configuring the charging current output to the battery by the charging circuit according to the charging control signal.
Optionally, the power supply assembly further comprises:
and the filtering power supply circuit is serially connected between the power interface and the charging and discharging circuit, and is used for filtering and converting the external power supply and outputting the external power supply to the charging and discharging circuit.
Optionally, the filtering power supply circuit includes:
the input end of the filter circuit is connected with the power interface, and the filter circuit is used for filtering the external power supply;
the input end of the DCDC isolation power supply circuit is connected with the output end of the filter circuit, the output end of the DCDC isolation power supply circuit is connected with the first input end of the charging and discharging circuit, and the DCDC isolation power supply circuit is used for converting an external power supply output by the filter circuit into a power supply voltage and then outputting the power supply voltage to the charging and discharging circuit.
Optionally, the filtering power supply circuit further includes:
the power supply reverse connection prevention circuit is connected in series with the filter circuit and the DCDC isolation power supply circuit, and the power supply reverse connection prevention circuit is used for conducting when the power interface is connected into the forward power supply voltage and is used for switching off when the power interface is connected into the reverse power supply voltage.
The utility model also provides a terminal equipment, terminal equipment includes mainboard and foretell power supply unit.
The utility model discloses technical scheme is through setting up power source, battery mounting groove, charge-discharge circuit, control assembly and input assembly, and charge-discharge circuit can convert the external power source that power source inserted into to charging voltage output to the battery to charge the battery, the user can export charging mode select signal to control assembly through triggering input assembly, thereby makes control assembly according to charging mode select signal, control charge-discharge circuit adjust output extremely the charging current of battery. The utility model discloses a set up charging and discharging circuit, control assembly and input assembly to make control assembly adjust the charging current and the charging voltage of exporting to the battery according to the user through the selected charge mode control charging and discharging circuit of input assembly, thereby make the battery can stabilize, charge safely, avoided dangers such as overcharge, excessive pressure, improved power supply assembly's security. And simultaneously, the utility model discloses compatible multiple charge mode, but the battery of the different electric core quantity of adaptation has reduced power supply unit's cost, has improved power supply unit's commonality and compatibility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of functional modules of an embodiment of the power supply assembly of the present invention;
fig. 2 is a schematic diagram of functional modules of an embodiment of the power supply assembly of the present invention;
fig. 3 is a schematic diagram of a circuit structure of an embodiment of the charging/discharging circuit in the power supply module of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Power supply interface | 60 | Filter |
| 20 | Battery mounting groove | 61 | |
| 30 | Charging and |
62 | Power supply reverse |
| 40 | Control ofAssembly | 63 | DCDC power |
| 50 | Input assembly | PQ1～PQ6 | First to sixth switching tubes |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a power supply unit is applied to among the terminal equipment, terminal equipment includes the mainboard.
At present, in a terminal device, a used rechargeable battery is usually a rechargeable battery with a fixed number of battery cells and a fixed capacity, so that a power supply system of the terminal device is also a set of system adapted to the rechargeable battery, and a user can only use one fixed rechargeable battery, which cannot meet the specific scene that some terminal devices need to replace different batteries for use.
To solve the above problem, referring to fig. 1 to 3, in an embodiment, the power supply assembly includes:
the power supply interface 10 is used for connecting an external power supply to the power supply interface 10;
the battery mounting groove 20 is used for placing a battery;
a charge and discharge circuit 30, a first input end of the charge and discharge circuit 30 is connected to the power interface 10, a charge output end of the charge and discharge circuit 30 is connected to the battery mounting groove 20, and the charge and discharge circuit 30 is configured to convert the external power into a charge voltage and output the charge voltage to the battery mounting groove 20 when detecting that the first input end is powered on, so as to charge the battery;
a control assembly 40, wherein the control assembly 40 is connected with the battery mounting groove 20 and the charging and discharging circuit 30;
and an input component 50, an output end of the input component 50 is connected to the control component 40, and the input component 50 is configured to receive a charging mode selection instruction input by a user and output a corresponding charging mode selection signal, so that the control component 40 selects a corresponding charging mode according to the charging mode selection signal and controls the charging and discharging circuit 30 to adjust a charging current output to the battery in the charging mode.
In this embodiment, the charging and discharging circuit 30 can be implemented by a charging circuit, a voltage converting circuit, and the like, and the charging and discharging circuit 30 can convert an external power source accessed by the power interface 10 into a charging voltage and output the charging voltage to the battery mounting groove 20 to charge an accessed battery. The number of the battery mounting grooves 20 can be set to one or more according to the actual scene requirement, and the battery mounting grooves are used for connecting the battery. The batteries may be batteries with different cell numbers, that is, the user may select batteries with different cell numbers according to actual scene requirements, for example, when the power supply requirement of the terminal device is high, the battery with the cell number of four may be selected for access, so as to meet the power supply scene with high requirement. In addition, it can be understood that the battery is heavier as the number of battery cells of the battery is larger, and therefore, a user can select the battery with different number of battery cells according to the weight requirement of an actual scene.
The control module 40 may be implemented by a main control chip, such as an MCU, a DSP (Digital Signal processor), an FPGA (Programmable Gate Array), and the like, in which charging control programs corresponding to batteries with different numbers of battery cells are integrated, so as to correspondingly implement control functions of multiple charging modes. It can be understood that, for batteries with different numbers of battery cells, the charging current and charging voltage that can be borne by the batteries are different, and the existing terminal device is usually a power supply assembly adapted to a type of battery, which makes a user need to replace the adapted power supply assembly when the batteries with different numbers of battery cells need to be replaced, which is easy to cause resource waste. For this reason, the charging control program corresponding to the batteries with different numbers of battery cores may be integrated in the main control chip in this embodiment, so as to correspondingly implement the control function of multiple charging modes, and meanwhile, the charging and discharging circuit 30 capable of adjusting the charging current and voltage is further provided. In this way, after the main control chip obtains the charging mode selected by the user through the input component 50, the main control chip runs the control program corresponding to the charging mode to control the charging and discharging circuit 30 to output the charging current and voltage adapted to the battery. The utility model discloses the compatible multiple mode of charging of power supply unit, but the battery of the different electric core quantity of adaptation has reduced power supply unit's cost, has improved power supply unit's commonality and compatibility.
In this embodiment, an input module 50 is further provided, and the input module 50 may be implemented by a touch screen, a control panel, or a dial switch. It can be understood that, the number of battery cells of the battery is different, and the range of the bearable charging current and the range of the charging voltage are also different, therefore, the user can send the charging mode selection signal to the control assembly 40 through the input assembly 50 according to the number of battery cells of the battery that is accessed, that is, send the charging mode selected by the user to the control assembly 40 through the input assembly 50, so that the control assembly 40 controls the charging and discharging circuit 30 to adjust the charging current and the charging voltage output to the battery according to the charging mode selected by the user. For example, a user inserts a battery with four battery cores into the battery mounting groove 20, and sends a charging mode selection signal to the control assembly 40 through the input assembly 50, after the control assembly 40 obtains information that the charging mode selected by the user is a four-battery-core charging mode, the control assembly controls the charging and discharging circuit 30 to adjust the charging current and the charging voltage output when the battery is charged, so that the charging and discharging circuit 30 can output a proper charging current and a proper charging voltage to charge the battery, risks such as overcharge and overvoltage are avoided, and the safety of the power supply assembly is improved.
In an embodiment, the input device 50 may be implemented by a dial switch circuit, and a user triggers the dial switch circuit to output a charging mode selection signal to the control device 40, so that the control device 40 controls the charging and discharging circuit 30 to adjust the charging current and the charging voltage output to the battery according to the charging mode selection signal. Specifically, the number of the dial switches may be set according to the number of the battery cells selectable by the user. For example, when a user can select batteries with four battery cells, two dial switches can be correspondingly set for gear switching, the batteries with 1, 2, 3 and 4 battery cells respectively correspond to the dial switches 00, 01, 10 and 11, that is, when the dial switch is set to 00, the number of the battery cells of the battery accessed in the charging mode is 1, when the dial switch is set to 01, the number of the battery cells of the battery accessed in the charging mode is 2, and so on. So, the user can be through dial switch circuit, and the manual mode of charging that switches makes charge-discharge circuit 30 can export suitable charging current and charging voltage and charge battery mounting groove 20, has avoided dangers such as overcharge, excessive pressure, has improved power supply unit's security.
Furthermore, circuits such as a battery level detection circuit and a temperature detection circuit may be added to the control module 40 to obtain parameters of the battery mounted in the battery mounting groove 20. Thus, the control module 40 can automatically obtain the battery parameters from the battery mounting groove 20, and automatically control the charging and discharging circuit 30 to adjust the charging current and the charging voltage output to the battery according to the obtained battery parameters, so that the battery can be stably and safely charged.
The utility model discloses a set up power source 10, battery mounting groove 20, charge-discharge circuit 30, control assembly 40 and input assembly 50, charge-discharge circuit 30 can convert the external power source that power source 10 inserts into charging voltage output to the battery to charge the battery, the user can export charging mode select signal to control assembly 40 through triggering input assembly 50, thereby makes control assembly 40 according to the charging mode select signal, controls charge-discharge circuit 30 and adjusts output extremely the charging current of battery. The utility model discloses a set up control assembly 40 and input assembly 50 for the user can be according to the electric core quantity of the battery of access, send the selected charge mode of user to control assembly 40 through input assembly 50, so that control assembly 40 adjusts output to the charging current and the charging voltage of battery according to the selected charge mode control charge-discharge circuit 30 of user, thereby make the battery can be stable, charge safely, avoided overcharge, dangers such as excessive pressure, the security that has improved power supply assembly. And simultaneously, the utility model discloses compatible multiple charge mode, but the battery of the different electric core quantity of adaptation has reduced power supply unit's cost, has improved power supply unit's commonality and compatibility.
Referring to fig. 1 to 3, in an embodiment, the power supply assembly further includes:
the output end of the quick charging trigger assembly is connected with the control assembly 40, and the quick charging trigger assembly is used for receiving a quick charging mode selection instruction input by a user and outputting a quick charging mode selection signal;
the control component 40 is further configured to select a corresponding fast charging mode according to the fast charging mode selection signal when receiving the fast charging mode selection signal, and control the charging and discharging circuit 30 to regulate the charging current output to the battery in the fast charging mode.
In this embodiment, the power supply module is further provided with a fast charging trigger module, configured to output a fast charging mode selection signal to the control module 40 when triggered by a user, so that the control module 40 controls the charging and discharging circuit 30 to enter a fast charging mode, and fast charges the battery. The quick charging trigger assembly can be realized by selecting an electronic switch or a dial switch, for example, the quick charging trigger assembly can be realized by selecting the dial switch, when the dial switch is set to be 0, the quick charging trigger assembly is in a common charging mode, when the dial switch is set to be 1, the quick charging trigger assembly outputs a quick charging control signal to the control assembly 40, so that the control assembly 40 controls the charging and discharging circuit 30 to quickly charge the battery mounting groove 20 according to a preset quick charging protocol. The main control chip in the control assembly 40 may also be integrated with a fast charging control program, which may correspondingly implement a control function of fast charging. Meanwhile, the charging and discharging circuit 30 capable of adjusting charging current and voltage is further arranged in the power supply assembly, so that a common charging mode and a quick charging mode can be achieved only by one set of circuit, a quick charging circuit corresponding to quick charging does not need to be arranged, the cost of the power supply assembly is reduced, and the practicability of the power supply assembly is improved.
Referring to fig. 1 to 3, in an embodiment, the charging and discharging circuit 30 has a second input end and a power supply output end, the second input end of the charging and discharging circuit 30 is connected to the battery mounting groove 20, and the power supply output end of the charging and discharging circuit 30 is connected to the main board;
the charging and discharging circuit 30 is configured to convert the external power supply into a power supply voltage and output the power supply voltage to the motherboard to supply power to the motherboard when detecting that the first input terminal is powered on;
the charging and discharging circuit 30 is further configured to convert the voltage output by the battery into a power supply voltage and output the power supply voltage to the motherboard when detecting that the first input terminal is powered down and the second input terminal is powered on, so as to supply power to the motherboard.
In the embodiment, the charging and discharging circuit 30 has a first input terminal and a second input terminal, which are respectively connected to the power interface 10 and the battery mounting groove 20, so that the charging and discharging circuit 30 can supply power to the motherboard in two ways. Further, the power supply priority of the charge and discharge circuit 30 may be set, for example, it may be set that the external power supply supplies power preferentially, when the charge and discharge circuit 30 detects that the first input terminal is powered on, that is, the power interface 10 is connected to the external power supply, the external power supply supplies power at this time, and the charge and discharge circuit 30 converts the voltage output by the external power supply into the power supply voltage and outputs the power supply voltage to the motherboard for supplying power. When the first input terminal is powered off and the second input terminal is powered on, that is, the power interface 10 is powered off and the battery is in the battery mounting groove 20, the charging and discharging circuit 30 is automatically switched to the battery to supply power to the motherboard. It can be understood that, when the motherboard is powered by the battery, the external power source is connected, and the charging and discharging circuit 30 is automatically switched to be powered by the external power source.
Referring to fig. 1 to 3, in an embodiment, the charging and discharging circuit 30 includes:
a first power supply end of the power supply switching circuit is connected with the power interface 10, a second power supply end of the power supply switching circuit is connected with the battery mounting groove 20, and an output end of the power supply switching circuit is connected with the mainboard;
a power-on detection circuit, a first detection end of which is connected to the power interface 10, a second detection end of which is connected to the battery mounting groove 20, and which is configured to output a first detection signal when detecting that the first detection end is powered on, and output a second detection signal when detecting that the first detection end is powered off and the second detection end is powered on;
the receiving end of the charging and discharging control circuit is connected with the power-on detection circuit, the power supply control end of the charging and discharging control circuit is connected with the controlled end of the power supply switching circuit, and the charging and discharging control circuit is used for controlling the power supply switching circuit to communicate the power interface 10 with the mainboard when receiving the first detection signal, so that an external power supply supplies power to the mainboard;
and the charge and discharge control circuit is also used for controlling the power supply switching circuit to communicate the battery mounting groove 20 with the mainboard when receiving the second detection signal, so that the battery supplies power to the mainboard.
In this embodiment, the charging and discharging circuit 30 may further include a power supply switching circuit, a power-up detection circuit, and a charging and discharging control circuit, as shown in fig. 3, fig. 3 is a circuit structure diagram of the charging and discharging circuit 30 in an embodiment, wherein a first power supply terminal VACIN of the power supply switching circuit is connected to the power interface 10, and a second power supply terminal VBATM of the power supply switching circuit is connected to the battery installation groove 20. The charge and discharge control circuit can select a charge and discharge control chip with the model number Bq24725ARGR, the pin 6 of the charge and discharge control chip is used as a power-on detection pin of the power interface 10, and when the power interface 10 is connected to an external power supply to be powered on, the pin 6 of the charge and discharge control chip receives an electric signal, so that the power-on information of the power interface 10 is obtained. When the charging and discharging control chip detects that the power interface 10 is powered on, the second switching tube PQ2 and the third switching tube PQ3 are controlled to be conducted, so that an external power supply accessed by the power interface 10 is communicated with the mainboard to supply power to the mainboard. When the charge and discharge control chip detects that the power interface 10 is powered off and the battery mounting groove 20 is powered on, the charge and discharge control chip controls the second switch tube PQ2 and the third switch tube PQ3 to be turned off and controls the fourth switch tube PQ4 to be turned on, so that the battery mounting groove 20 is communicated with the mainboard to supply power to the mainboard.
Referring to fig. 1 to 3, in an embodiment, the charging and discharging circuit 30 further includes:
the input end of the charging circuit is connected with the output end of the power supply switching circuit, the output end of the charging circuit is connected with the battery mounting groove 20, the controlled end of the charging circuit is connected with the charging control end of the charging and discharging control circuit, and the charging circuit is used for converting an external power supply into charging voltage and outputting the charging voltage to the battery so as to charge the battery;
the charging and discharging control circuit is further connected with the control assembly 40, and is further used for receiving the charging control signal output by the control assembly 40 and configuring the charging current output to the battery by the charging circuit according to the charging control signal.
In this embodiment, the charging circuit is further disposed in the charging and discharging circuit 30, so that the charging output end of the charging and discharging circuit 30 is connected to the battery mounting groove 20, and is used for converting the external power source into a charging voltage to charge the battery when the first input end is powered on, that is, when the power interface 10 is connected to the external power source. Thus, when an external power source is connected, the charging and discharging circuit 30 can charge the battery, and store the redundant electric energy provided by the external power source into the battery. When the external power source is turned off, the charging and discharging circuit 30 will automatically switch to the battery to supply power to the motherboard, consuming the electric energy stored in the battery. So, can also charge to the battery when external power source supplies power to the mainboard for the mainboard still can obtain the electric energy from the battery when not having external power source to access, thereby keep the stability of mainboard work, prolong the time of mainboard work.
Further, the control component 40 can also output the charging control signal output by the input component 50 to the charging and discharging control circuit, so that the charging and discharging control circuit configures the charging current and the charging voltage output by the charging circuit to the battery according to the charging control signal, as shown in fig. 3, fig. 3 is a circuit structure diagram of the charging and discharging circuit 30 in an embodiment. After receiving the charging control signal output by the control module 40, the charging and discharging control chip adjusts the duty ratio of the PWM signal output to the fifth switching tube PQ5 and the sixth switching tube PQ6 according to the charging control signal, thereby adjusting the charging current and the charging voltage output from the external power source to the battery through the fifth switching tube PQ5 and the sixth switching tube PQ6, so that the charging circuit can output the appropriate charging current and charging voltage to charge the battery, thereby avoiding the risks of overcharge, overvoltage and the like and improving the safety of the power supply module.
Referring to fig. 1 to 3, in an embodiment, the power supply assembly further includes:
the filtering power supply circuit 60 is arranged between the power supply interface 10 and the charging and discharging circuit 30 in series, and the filtering power supply circuit 60 is used for outputting the external power supply to the charging and discharging circuit 30 after filtering and converting.
In this embodiment, the power supply module further includes a filtering power circuit 60 serially connected between the power interface 10 and the charging/discharging circuit 30, and the filtering power circuit 60 may be composed of a filtering circuit 61 and a voltage converting circuit, and is configured to filter and convert the power input by the power interface 10, convert the external power into an internal available fixed voltage, and output the internal available fixed voltage.
Referring to fig. 1 to 3, in an embodiment, the filtering power supply circuit 60 includes:
a filter circuit 61, an input end of the filter circuit 61 is connected to the power interface 10, and the filter circuit 61 is configured to perform filtering processing on the external power supply;
the input end of the DCDC isolation power supply circuit is connected with the output end of the filter circuit 61, the output end of the DCDC isolation power supply circuit is connected with the first input end of the charging and discharging circuit 30, and the DCDC isolation power supply circuit is used for converting an external power supply output by the filter circuit 61 into a power supply voltage and then outputting the power supply voltage to the charging and discharging circuit 30.
In this embodiment, the filtering power circuit 60 may be composed of a filtering circuit 61 and a DCDC isolation power circuit, and the filtering circuit 61 may be composed of a filter or discrete electronic components such as a resistor and a capacitor, as shown in fig. 3, fig. 3 is a schematic circuit structure diagram of the filtering circuit 61 in an embodiment, and a direct current wide voltage input by an external power source through the power interface 10 passes through the filtering circuit 61 first, and after relevant interference is removed, the direct current wide voltage is output to the DCDC isolation power circuit. The DCDC isolation power supply circuit converts the filtered direct current wide voltage into a set fixed voltage for output. DCDC keeps apart power supply circuit can adopt the DCDC of standard to keep apart power module, has the function that the power was kept apart, has the security height, the alternative is strong, stability advantage such as high, and DCDC keeps apart power module simultaneously can with be integrated together with the wave filter to reduce the volume and the weight of product. Furthermore, power modules with different width voltages can be selected for replacement, so that different width voltage requirements in practical application are met, and product diversity is improved.
Referring to fig. 1 to 3, in an embodiment, the filtering power supply circuit 60 further includes:
the power supply reverse connection preventing circuit 62 is connected with the filter circuit 61 in series and is arranged between the DCDC isolation power supply circuit, the power supply reverse connection preventing circuit 62 is used for conducting when the power supply interface 10 is connected with the forward power supply voltage and is used for switching off when the power supply interface is connected with the reverse power supply voltage.
In this embodiment, the filter power supply circuit 60 is further provided with a power supply reverse connection prevention circuit 62 connected in series between the filter circuit 61 and the DCDC isolation power supply circuit, and the externally input direct current wide voltage firstly passes through the filter circuit 61, after relevant interference is removed, the machine circuit damage caused by external positive and negative connection errors can be avoided through the power supply reverse connection prevention circuit 62, and then the externally input direct current wide voltage is converted into a set fixed voltage through the DCDC isolation power supply circuit to be output. When the power interface 10 is connected to the forward power voltage, the power reverse connection prevention circuit 62 is turned on, and the voltage can be output to the DCDC isolation power circuit through the power reverse connection prevention circuit 62. When the power interface 10 is connected with the reverse power voltage, the power reverse connection prevention circuit 62 is turned off, the voltage cannot be output to the DCDC isolation power circuit through the power reverse connection prevention circuit 62, and by arranging the power reverse connection prevention circuit 62, the damage of a machine circuit caused by external positive and negative connection errors can be avoided, so that a user can timely find that a product does not normally operate and carry out troubleshooting.
The utility model also provides a terminal equipment, this terminal equipment include mainboard and foretell power supply assembly, and the concrete structure of this power supply assembly refers to above-mentioned embodiment, because this terminal equipment has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (9)
1. A power supply assembly is applied to a terminal device, the terminal device comprises a mainboard, and the power supply assembly is characterized by comprising:
the power interface is used for accessing an external power supply;
the battery mounting groove is used for placing a battery;
the first input end of the charge-discharge circuit is connected with the power interface, the charge output end of the charge-discharge circuit is connected with the battery mounting groove, and the charge-discharge circuit is used for converting the external power supply into charge voltage and outputting the charge voltage to the battery mounting groove when the first input end is detected to be electrified so as to charge the battery;
the control assembly is connected with the battery mounting groove and the charging and discharging circuit;
the output end of the input assembly is connected with the control assembly, and the input assembly is used for receiving a charging mode selection instruction input by a user and outputting a corresponding charging mode selection signal, so that the control assembly selects a corresponding charging mode according to the charging mode selection signal and controls the charging and discharging circuit to adjust the charging current output to the battery in the charging mode.
2. The power supply assembly of claim 1, wherein the power supply assembly further comprises:
the output end of the quick charging trigger assembly is connected with the control assembly, and the quick charging trigger assembly is used for receiving a quick charging mode selection instruction input by a user and outputting a quick charging mode selection signal;
and the control assembly is also used for selecting a corresponding quick charge mode according to the quick charge mode selection signal when receiving the quick charge mode selection signal, and controlling the charge and discharge circuit to regulate the charge current output to the battery in the quick charge mode.
3. The power supply assembly of claim 1, wherein the charge and discharge circuit has a second input terminal and a power supply output terminal, the second input terminal of the charge and discharge circuit is connected to the battery mounting groove, and the power supply output terminal of the charge and discharge circuit is connected to the main board;
the charging and discharging circuit is used for converting the external power supply into power supply voltage and outputting the power supply voltage to the mainboard when the first input end is detected to be powered on so as to supply power to the mainboard;
and the charging and discharging circuit is also used for converting the voltage output by the battery into a power supply voltage and outputting the power supply voltage to the mainboard when detecting that the first input end is powered off and the second input end is powered on so as to supply power to the mainboard.
4. The power supply assembly of claim 3, wherein the charge and discharge circuit comprises:
a first power supply end of the power supply switching circuit is connected with the power interface, a second power supply end of the power supply switching circuit is connected with the battery mounting groove, and an output end of the power supply switching circuit is connected with the mainboard;
a power-on detection circuit, a first detection end of which is connected with the power interface, a second detection end of which is connected with the battery mounting groove, and the power-on detection circuit is used for outputting a first detection signal when detecting that the first detection end is powered on and outputting a second detection signal when detecting that the first detection end is powered off and the second detection end is powered on;
the receiving end of the charging and discharging control circuit is connected with the power-on detection circuit, the power supply control end of the charging and discharging control circuit is connected with the controlled end of the power supply switching circuit, and the charging and discharging control circuit is used for controlling the power supply switching circuit to communicate the power interface and the mainboard when receiving the first detection signal so that an external power supply supplies power to the mainboard;
and the charge and discharge control circuit is also used for controlling the power supply switching circuit to be communicated with the battery mounting groove and the mainboard when receiving the second detection signal, so that the battery supplies power to the mainboard.
5. The power supply assembly of claim 4, wherein the charge and discharge circuit further comprises:
the input end of the charging circuit is connected with the output end of the power supply switching circuit, the output end of the charging circuit is connected with the battery mounting groove, the controlled end of the charging circuit is connected with the charging control end of the charging and discharging control circuit, and the charging circuit is used for converting an external power supply into charging voltage and outputting the charging voltage to the battery mounting groove so as to charge the battery;
the charging and discharging control circuit is further connected with the control assembly and is further used for receiving the charging control signal output by the control assembly and configuring the charging current output to the battery by the charging circuit according to the charging control signal.
6. The power supply assembly of claim 1, wherein the power supply assembly further comprises:
and the filtering power supply circuit is serially connected between the power interface and the charging and discharging circuit, and is used for filtering and converting the external power supply and outputting the external power supply to the charging and discharging circuit.
7. The power supply assembly of claim 6, wherein the filtering power supply circuit comprises:
the input end of the filter circuit is connected with the power interface, and the filter circuit is used for filtering the external power supply;
the input end of the DCDC isolation power supply circuit is connected with the output end of the filter circuit, the output end of the DCDC isolation power supply circuit is connected with the first input end of the charging and discharging circuit, and the DCDC isolation power supply circuit is used for converting an external power supply output by the filter circuit into a power supply voltage and then outputting the power supply voltage to the charging and discharging circuit.
8. The power supply assembly of claim 7, wherein the filtering power supply circuit further comprises:
the power supply reverse connection prevention circuit is connected in series with the filter circuit and the DCDC isolation power supply circuit, and the power supply reverse connection prevention circuit is used for conducting when the power interface is connected into the forward power supply voltage and is used for switching off when the power interface is connected into the reverse power supply voltage.
9. A terminal device comprising a main board and a power supply module according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220957709.0U CN217956717U (en) | 2022-04-24 | 2022-04-24 | Power supply assembly and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220957709.0U CN217956717U (en) | 2022-04-24 | 2022-04-24 | Power supply assembly and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217956717U true CN217956717U (en) | 2022-12-02 |
Family
ID=84210039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220957709.0U Active CN217956717U (en) | 2022-04-24 | 2022-04-24 | Power supply assembly and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217956717U (en) |
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2022
- 2022-04-24 CN CN202220957709.0U patent/CN217956717U/en active Active
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