CN217115675U - Battery adapter - Google Patents
Battery adapter Download PDFInfo
- Publication number
- CN217115675U CN217115675U CN202220365209.8U CN202220365209U CN217115675U CN 217115675 U CN217115675 U CN 217115675U CN 202220365209 U CN202220365209 U CN 202220365209U CN 217115675 U CN217115675 U CN 217115675U
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- resistor
- module
- charging
- diode
- voltage stabilizing
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- 238000007600 charging Methods 0.000 claims abstract description 103
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 46
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 14
- 230000035939 shock Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 8
- 230000005670 electromagnetic radiation Effects 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 2
- 238000010277 constant-current charging Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a battery adapter, including voltage stabilizing module, charge management module and first filtering module, voltage stabilizing module's switch node is through first filtering module ground connection. The technical scheme is simultaneously provided with a solar charging interface and an adapter charging interface to realize a multi-mode charging function; the voltage stabilizing module is used for realizing the voltage boosting/reducing function of the input voltage, so that the requirements on the input voltage and the battery voltage are not required to be too high, and the applicability is wide; the charging management module is utilized to realize the functions of detecting charging parameters and managing and protecting the charging in the process of charging the battery, so that the safety of the charging process is improved; noise radiation interference at the switch node of the voltage stabilizing module is filtered by utilizing the first filtering module, so that the influence of larger electromagnetic radiation on surrounding instruments and equipment is avoided.
Description
Technical Field
The utility model relates to an electronic circuit technical field, more specifically say and relate to a battery adapter circuit structure.
Background
At present, a plurality of electric tools such as a flashlight rotor are all provided with tool batteries for use, but under the condition that the tools are not used, the batteries are in an idle state and cannot be fully utilized. The tool battery adapter can be used for solving the problem well, and the tool battery is used as a mobile power supply to supply power to other electrical appliances, so that the battery is fully utilized.
The tool battery adapter on the market only has the output discharge function, and still need dismantle after the battery uses up and use other original chargers to charge, especially in the outdoor condition, does not have the condition of commercial power, can't charge at all, just can't use again after the battery exhausts, experiences badly.
In addition, the existing charger circuit has severe requirements on the power supply voltage and the battery voltage, the battery is difficult to manage in the charging process, and the battery is easy to damage.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a: a battery adapter is provided.
The utility model discloses a technical scheme that the solution problem adopted is:
a battery adapter, comprising:
the solar charging interface is used for being electrically connected with an external solar power supply panel;
the adapter charging interface is used for being electrically connected with an external power adapter;
the power supply interface is used for being electrically connected with an external battery;
the voltage stabilizing module is a switching voltage stabilizing circuit, is provided with a switching node, and has an input end electrically connected with the solar charging interface and the adapter charging interface respectively;
the charging management module is used for managing and controlling battery charging, the input end of the charging management module is electrically connected with the output end of the voltage stabilizing module, and the output end of the charging management module is electrically connected with the power supply interface;
the first filtering module is used for filtering noise interference, and a switch node of the voltage stabilizing module is grounded through the first filtering module.
As a further improvement of the above technical solution, the first filtering module includes a resistor R1 and a capacitor C1, and a switch node of the voltage stabilizing module is grounded through a resistor R1 and a capacitor C1 in sequence.
As a further improvement of the above technical solution, the voltage stabilizing module includes a voltage stabilizing chip of a model TX4221, an inductor L1, a diode D1, a switching tube Q1, a resistor R3, a resistor R4, a resistor R5, and a capacitor C3, the voltage stabilizing chip is configured with a feedback end and a driving end, and a drain of the switching tube Q1 is used as a switching node of the voltage stabilizing module;
one end of the inductor L1 is connected to the solar charging interface and the adapter charging interface, the other end of the inductor L1 is connected to the drain of the switch Q1 and the anode of the diode D1, the cathode of the diode D1 is grounded through the capacitor C3, the cathode of the diode D1 is connected to the input end of the charging management module, the resistor R3 and the resistor R4 are connected in series between the cathode of the diode D1 and the ground, the feedback end of the voltage regulator chip is connected between the resistor R3 and the resistor R4, the driving end of the voltage regulator chip is connected to the gate of the switch Q1, and the source of the switch Q1 is grounded through the resistor R5.
As a further improvement of the above technical solution, the charging management module includes a charging management chip with model number CN3765, a switching tube Q2, a diode D2, a capacitor C4, an inductor L2, a resistor R6, a resistor R7, and a resistor R8, and the charging management chip is configured with a driving terminal, a feedback terminal, a current detection positive terminal, and a current detection negative terminal;
the driving end of the charging management chip is connected with the gate of the switching tube Q2, the source of the switching tube Q2 is connected with the output end of the voltage stabilizing module, the drain of the switching tube Q2 is connected with the anode of the diode D2 through the inductor L2 and the resistor R6 in sequence, the cathode of the diode D2 is connected with the power supply interface, the resistor R7 and the resistor R8 are connected between the cathode of the diode D2 and the ground in series, the feedback end of the charging management chip is connected between the resistor R7 and the resistor R8, one end of the capacitor C4 is connected with the anode of the diode D2, the other end of the capacitor C4 is connected to the ground, and the current detection positive end and the current detection negative end of the charging management chip are connected to the two ends of the resistor R6 respectively.
As a further improvement of the above technical solution, the charging management module further includes a diode D3, the diode R3 is a voltage regulator, a negative electrode of the diode D3 is connected to a drain of the switching tube Q2, and a positive electrode of the diode D3 is grounded.
As a further improvement of the above technical solution, the present technical solution further includes a second filtering module, a drain of the switching tube Q2 is used as a switching node of the charging management module, and the switching node of the charging management module is grounded through the second filtering module.
As a further improvement of the above technical solution, the second filtering module includes a resistor R2 and a capacitor C2, and a switch node of the charging management module is grounded through a resistor R2 and a capacitor C2 in sequence.
As a further improvement of the above technical solution, the solar charging interface and the adapter charging interface are electrically connected to the input end of the voltage stabilizing module through the third filtering module respectively.
As a further improvement of the above technical solution, the solar charging interface and the adapter charging interface are respectively electrically connected to the third filtering module through the anti-impact module.
The utility model has the advantages that: the technical scheme is simultaneously provided with a solar charging interface and an adapter charging interface to realize a multi-mode charging function; the voltage stabilizing module is used for realizing the voltage boosting/reducing function of the input voltage, so that the requirements on the input voltage and the battery voltage are not required to be too high, and the applicability is wide; the charging management module is utilized to realize the functions of detecting charging parameters and managing and protecting the charging in the process of charging the battery, so that the safety of the charging process is improved; noise radiation interference at the switch node of the voltage stabilizing module is filtered by utilizing the first filtering module, so that the influence of larger electromagnetic radiation on surrounding instruments and equipment is avoided.
Drawings
The invention will be further explained with reference to the drawings and the detailed description.
Fig. 1 is a schematic diagram of a circuit module of the present invention;
fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 2, the present application discloses a battery adapter, a first embodiment of which includes:
the solar charging interface is used for being electrically connected with an external solar power supply panel;
the adapter charging interface is used for being electrically connected with an external power adapter;
the power supply interface is used for being electrically connected with an external battery;
the voltage stabilizing module is a switching voltage stabilizing circuit, is provided with a switching node, and has an input end electrically connected with the solar charging interface and the adapter charging interface respectively;
the charging management module is used for managing and controlling battery charging, the input end of the charging management module is electrically connected with the output end of the voltage stabilizing module, and the output end of the charging management module is electrically connected with the power supply interface;
the first filtering module is used for filtering noise interference, and a switch node of the voltage stabilizing module is grounded through the first filtering module.
The switching node of the voltage stabilizing module in this embodiment refers to an inductive current conversion node arranged between a switching device and a diode in the voltage stabilizing module.
Specifically, in this embodiment, the solar charging interface and the adapter charging interface are simultaneously provided to implement a multi-mode charging function; the voltage stabilizing module is utilized to realize the voltage boosting/reducing function of the input voltage, so that the requirements on the input voltage and the battery voltage are not required to be too high, and the applicability is wide; the charging management module is used for realizing the functions of detecting charging parameters and managing and protecting charging in the process of charging the battery; the safety of the charging process is improved; and the first filtering module is utilized to filter noise radiation interference at the switch node of the voltage stabilizing module, so that the influence of larger electromagnetic radiation on surrounding instruments and equipment is avoided.
Further, in a preferred implementation manner, in this embodiment, the first filtering module includes a resistor R1 and a capacitor C1, and a switch node of the voltage stabilizing module is grounded through a resistor R1 and a capacitor C1 in sequence.
Further, in this embodiment, the voltage stabilizing module includes a voltage stabilizing chip of a model TX4221, an inductor L1, a diode D1, a switching tube Q1, a resistor R3, a resistor R4, a resistor R5, and a capacitor C3, the voltage stabilizing chip is configured with a feedback end and a driving end, and a drain of the switching tube Q1 is used as a switching node of the voltage stabilizing module;
one end of the inductor L1 is connected to the solar charging interface and the adapter charging interface, the other end of the inductor L1 is connected to the drain of the switch Q1 and the anode of the diode D1, the cathode of the diode D1 is grounded through the capacitor C3, the cathode of the diode D1 is connected to the input end of the charging management module, the resistor R3 and the resistor R4 are connected in series between the cathode of the diode D1 and the ground, the feedback end of the voltage regulator chip is connected between the resistor R3 and the resistor R4, the driving end of the voltage regulator chip is connected to the gate of the switch Q1, and the source of the switch Q1 is grounded through the resistor R5.
In this embodiment, the voltage stabilizing chip of the TX4221 type adopts a PWM control mode with a fixed frequency, can automatically perform down-conversion under a light load condition to improve the conversion efficiency, and is provided with a high-precision error amplifier, an oscillator, and a frequency compensation circuit inside, thereby effectively simplifying the peripheral design. In addition, overcurrent protection is arranged in the voltage stabilizing chip, so that the safety of the battery in the charging process is effectively improved.
Further, in this embodiment, the charge management module includes a charge management chip with a model number CN3765, a switching tube Q2, a diode D2, a capacitor C4, an inductor L2, a resistor R6, a resistor R7, and a resistor R8, and the charge management chip is configured with a driving terminal, a feedback terminal, a current detection positive terminal, and a current detection negative terminal;
the driving end of the charging management chip is connected with the gate of the switching tube Q2, the source of the switching tube Q2 is connected with the output end of the voltage stabilizing module, the drain of the switching tube Q2 is connected with the anode of the diode D2 through the inductor L2 and the resistor R6 in sequence, the cathode of the diode D2 is connected with the power supply interface, the resistor R7 and the resistor R8 are connected between the cathode of the diode D2 and the ground in series, the feedback end of the charging management chip is connected between the resistor R7 and the resistor R8, one end of the capacitor C4 is connected with the anode of the diode D2, the other end of the capacitor C4 is connected to the ground, and the current detection positive end and the current detection negative end of the charging management chip are connected to the two ends of the resistor R6 respectively.
In this embodiment, the charging management chip of CN3765 is a PWM buck-type multi-type battery charging management integrated circuit, and may be used for charging management of a single or multiple lithium batteries, lithium iron phosphate batteries, or lithium titanate batteries, and the charging management chip has trickle, constant-current, and constant-voltage charging modes, where the constant-current charging current is set by a resistor R6 between a current detection positive terminal and a current detection negative terminal, and the constant-voltage charging voltage is set by a feedback resistor connected to the feedback terminal.
Further as a preferred implementation manner, in this embodiment, the charging management module further includes a diode D3, the diode R3 is a voltage regulator, a negative electrode of the diode D3 is connected to a drain of the switching tube Q2, and an anode of the diode D3 is grounded, and in this embodiment, the diode D3 plays a role of clamping and stabilizing voltage, so as to effectively prevent voltage overshoot.
Further as a preferred implementation manner, this embodiment further includes a second filtering module, a drain of the switching tube Q2 is used as a switching node of the charging management module, and the switching node of the charging management module is grounded through the second filtering module. Specifically, in this embodiment, the second filtering module includes a resistor R2 and a capacitor C2, and the switch node of the charging management module is grounded through the resistor R2 and the capacitor C2 in sequence. In this embodiment, the second filtering module is configured to filter noise radiation interference at the switch node of the charging management module, so that the influence of electromagnetic radiation on surrounding instruments and devices can be avoided.
As a further preferred implementation manner, this embodiment further includes a third filtering module, and the solar charging interface and the adapter charging interface are electrically connected to the input end of the voltage stabilizing module through the third filtering module, respectively.
Further as preferred embodiment, this embodiment still includes protecting against shock module, solar charging interface and the adapter interface that charges respectively through protecting against shock module with the third filtering module electricity is connected, protecting against shock module includes transient suppression diode D4, transient suppression diode D4's one end respectively with solar charging interface and the adapter interface that charges is connected, and the other end ground connection.
The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (9)
1. A battery adapter, comprising: the method comprises the following steps:
the solar charging interface is used for being electrically connected with an external solar power supply panel;
the adapter charging interface is used for being electrically connected with an external power adapter;
the power supply interface is used for being electrically connected with an external battery;
the voltage stabilizing module is a switching voltage stabilizing circuit, is provided with a switching node, and has an input end electrically connected with the solar charging interface and the adapter charging interface respectively;
the charging management module is used for managing and controlling battery charging, the input end of the charging management module is electrically connected with the output end of the voltage stabilizing module, and the output end of the charging management module is electrically connected with the power supply interface;
the first filtering module is used for filtering noise interference, and a switch node of the voltage stabilizing module is grounded through the first filtering module.
2. A battery adapter according to claim 1, wherein: the first filtering module comprises a resistor R1 and a capacitor C1, and a switch node of the voltage stabilizing module is grounded through a resistor R1 and a capacitor C1 in sequence.
3. A battery adapter according to claim 1, wherein: the voltage stabilizing module comprises a voltage stabilizing chip with the model number of TX4221, an inductor L1, a diode D1, a switching tube Q1, a resistor R3, a resistor R4, a resistor R5 and a capacitor C3, the voltage stabilizing chip is configured with a feedback end and a driving end, and the drain electrode of the switching tube Q1 is used as a switching node of the voltage stabilizing module;
one end of the inductor L1 is connected to the solar charging interface and the adapter charging interface, the other end of the inductor L1 is connected to the drain of the switch Q1 and the anode of the diode D1, the cathode of the diode D1 is grounded through the capacitor C3, the cathode of the diode D1 is connected to the input end of the charging management module, the resistor R3 and the resistor R4 are connected in series between the cathode of the diode D1 and the ground, the feedback end of the voltage regulator chip is connected between the resistor R3 and the resistor R4, the driving end of the voltage regulator chip is connected to the gate of the switch Q1, and the source of the switch Q1 is grounded through the resistor R5.
4. A battery adapter according to claim 1, wherein: the charging management module comprises a charging management chip with the model number of CN3765, a switching tube Q2, a diode D2, a capacitor C4, an inductor L2, a resistor R6, a resistor R7 and a resistor R8, wherein the charging management chip is configured with a driving end, a feedback end, a current detection positive end and a current detection negative end;
the driving end of the charging management chip is connected with the gate of the switching tube Q2, the source of the switching tube Q2 is connected with the output end of the voltage stabilizing module, the drain of the switching tube Q2 is connected with the anode of the diode D2 through the inductor L2 and the resistor R6 in sequence, the cathode of the diode D2 is connected with the power supply interface, the resistor R7 and the resistor R8 are connected between the cathode of the diode D2 and the ground in series, the feedback end of the charging management chip is connected between the resistor R7 and the resistor R8, one end of the capacitor C4 is connected with the anode of the diode D2, the other end of the capacitor C4 is connected to the ground, and the current detection positive end and the current detection negative end of the charging management chip are connected to the two ends of the resistor R6 respectively.
5. The battery adapter according to claim 4, wherein: the charging management module further comprises a diode D3, the diode R3 is a voltage regulator tube, the cathode of the diode D3 is connected with the drain of the switch tube Q2, and the anode of the diode D3 is grounded.
6. The battery adapter according to claim 4, wherein: the charging management module further comprises a second filtering module, the drain electrode of the switching tube Q2 is used as the switching node of the charging management module, and the switching node of the charging management module is grounded through the second filtering module.
7. The battery adapter according to claim 6, wherein: the second filtering module comprises a resistor R2 and a capacitor C2, and the switch node of the charging management module is grounded through a resistor R2 and a capacitor C2 in sequence.
8. A battery adapter according to claim 1, wherein: the solar charging interface and the adapter charging interface are respectively electrically connected with the input end of the voltage stabilizing module through the third filtering module.
9. A battery adapter according to claim 8, wherein: still include protecting against shock module, solar charging interface and the adapter interface that charges passes through respectively protecting against shock module with the third filtering module electricity is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220365209.8U CN217115675U (en) | 2022-02-22 | 2022-02-22 | Battery adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220365209.8U CN217115675U (en) | 2022-02-22 | 2022-02-22 | Battery adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217115675U true CN217115675U (en) | 2022-08-02 |
Family
ID=82598923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220365209.8U Active CN217115675U (en) | 2022-02-22 | 2022-02-22 | Battery adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217115675U (en) |
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2022
- 2022-02-22 CN CN202220365209.8U patent/CN217115675U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: No. 23 Jiankang Road, Torch Development Zone, Zhongshan City, Guangdong Province, 528400 Patentee after: Indre Industries (Guangdong) Co.,Ltd. Country or region after: China Address before: No.23, Jiankang Road, National Health Science and technology industrial base, Zhongshan City, Guangdong Province, 528400 Patentee before: GUANGDONG INDEL B ENTERPRISE Co.,Ltd. Country or region before: China |