CN212435390U - Battery charging and discharging control circuit and battery device - Google Patents
Battery charging and discharging control circuit and battery device Download PDFInfo
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- CN212435390U CN212435390U CN202021089157.3U CN202021089157U CN212435390U CN 212435390 U CN212435390 U CN 212435390U CN 202021089157 U CN202021089157 U CN 202021089157U CN 212435390 U CN212435390 U CN 212435390U
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Abstract
The utility model discloses a battery charge and discharge control circuit and battery device, battery charge and discharge control circuit include the anodal interface that charges, the negative pole interface that charges, the anodal interface of battery, battery negative pole interface, the anodal interface that discharges, the negative pole interface that discharges, voltage conversion module and charge and discharge control module. According to the technical scheme, the amplitude conversion is carried out on the input charging voltage through the setting of the voltage conversion module, the requirement on the charging voltage provided by the charger is reduced, only the output voltage of the voltage conversion module is required to be matched with the charging parameter of the battery, and meanwhile, the protection functions of the charging process and the discharging process of the battery are realized through the setting of the charging and discharging control module.
Description
Technical Field
The utility model relates to an electronic circuit technical field, more specifically say and relate to a battery device of battery charge-discharge control circuit and applied this circuit.
Background
At present, a large number of products powered by batteries are available on the market, so that a great deal of manufacturers pay more attention to application circuits of the batteries, wherein charge and discharge protection circuits of the batteries are particularly important.
In the prior art, a charging and discharging protection circuit of a battery is mainly provided with two functions, one is used for detecting each electrical parameter in the charging and discharging process of the battery, and the other is used for controlling the charging and discharging process of the battery according to the electrical parameter in the charging and discharging process of the battery. One drawback of the charging and discharging protection circuit of the battery in the prior art is that a charger with a proper charging voltage needs to be selected according to actual parameters of the battery to perform charging operation on the battery, so that the number of applicable chargers is small, and the use of other chargers is greatly limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery charge-discharge control circuit and use battery device of this circuit to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.
The technical scheme adopted for solving the technical problems is as follows:
a battery charge and discharge control circuit comprising:
the charging positive electrode interface is used for being connected with a positive electrode power supply interface of an external charger;
the charging negative electrode interface is used for being connected with a negative electrode power supply interface of an external charger;
the battery positive electrode interface is used for being connected with the positive electrode of the battery;
the battery negative electrode interface is used for being connected with the negative electrode of the battery;
the discharging positive electrode interface is used for being connected with the positive electrode of the battery, and the battery positive electrode interface is connected with the discharging positive electrode interface;
the discharging negative electrode interface and the charging negative electrode interface are arranged together, namely the discharging negative electrode interface and the charging negative electrode interface share the same interface;
the voltage conversion module is respectively connected with the charging positive electrode interface, the charging negative electrode interface and the battery positive electrode interface, and is used for performing amplitude conversion on the charging voltage input by the charging positive electrode interface and the charging negative electrode interface and outputting the charging voltage to the battery positive electrode interface;
and the charging and discharging control module is respectively connected with the battery anode interface, the battery cathode interface and the charging cathode interface and is used for controlling the electrical connection of the battery cathode interface and the charging cathode interface according to the potentials of the battery anode interface and the battery cathode interface.
As a further improvement of the above technical solution, the charge and discharge control module includes a control chip, a switching tube Q1 and a switching tube Q2, the control chip is configured with a charge control pin, a discharge control pin and two or more voltage detection pins, the voltage detection pins of the control chip are connected with the battery positive interface and the battery negative interface in a one-to-one correspondence manner, the charge control pin of the control chip is connected with the gate of the switching tube Q1, the discharge control pin of the control chip is connected with the gate of the switching tube Q2, the source of the switching tube Q2 is connected with the battery negative interface, the drain of the switching tube Q2 is connected with the drain of the switching tube Q1, and the source of the switching tube Q1 is connected with the charge negative interface.
As a further improvement of the technical scheme, the model of the control chip is HY 2113.
As a further improvement of the above technical solution, the voltage conversion module includes a conversion chip, an inductor L1, a resistor R1, and a capacitor C1, the conversion chip is configured with a switch pin, a voltage input pin, and a voltage output pin, the voltage input pin of the conversion chip is connected to the charging positive interface, the switch pin of the conversion chip is connected to one end of the inductor L1, the other end of the inductor L1 is connected to one end of the battery positive interface and one end of the resistor R1, the other end of the resistor R1 is connected to the voltage output pin of the conversion chip and one end of the capacitor C1, and the other end of the capacitor C1 is connected to the charging negative interface.
As a further improvement of the above technical solution, the model of the conversion chip is IP 2312.
The utility model discloses still disclose a battery device simultaneously, including the battery and above battery charge-discharge control circuit, the positive pole of battery with the anodal interface of battery links to each other, the negative pole of battery with battery negative pole interface links to each other.
The utility model has the advantages that: according to the technical scheme, the amplitude conversion is carried out on the input charging voltage through the setting of the voltage conversion module, the requirement on the charging voltage provided by the charger is reduced, only the output voltage of the voltage conversion module is required to be matched with the charging parameter of the battery, and meanwhile, the protection functions of the charging process and the discharging process of the battery are realized through the setting of the charging and discharging control module.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 is a circuit module frame diagram 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, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.
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 charge and discharge control circuit, a first embodiment of which includes:
the charging positive electrode interface is used for being connected with a positive electrode power supply interface of an external charger;
the charging negative electrode interface is used for being connected with a negative electrode power supply interface of an external charger;
the battery positive electrode interface is used for being connected with the positive electrode of the battery;
the battery negative electrode interface is used for being connected with the negative electrode of the battery;
the discharging positive electrode interface is used for being connected with the positive electrode of the battery, and the battery positive electrode interface is connected with the discharging positive electrode interface;
the discharging negative electrode interface and the charging negative electrode interface are arranged together, namely the discharging negative electrode interface and the charging negative electrode interface share the same interface;
the voltage conversion module is respectively connected with the charging positive electrode interface, the charging negative electrode interface and the battery positive electrode interface, and is used for performing amplitude conversion on the charging voltage input by the charging positive electrode interface and the charging negative electrode interface and outputting the charging voltage to the battery positive electrode interface;
and the charging and discharging control module is respectively connected with the battery anode interface, the battery cathode interface and the charging cathode interface and is used for controlling the electrical connection of the battery cathode interface and the charging cathode interface according to the potentials of the battery anode interface and the battery cathode interface.
Specifically, in this embodiment, the amplitude of the input charging voltage is converted through the setting of the voltage conversion module, so as to reduce the requirement for the charging voltage provided by the charger, and only the output voltage of the voltage conversion module needs to be matched with the charging parameter of the battery, and meanwhile, the protection functions of the charging process and the discharging process of the battery are realized through the setting of the charging and discharging control module.
Referring to fig. 2, as a further preferred implementation manner, in this embodiment, the charge and discharge control module includes a control chip of type HY2113, a switch tube Q1 and a switch tube Q2, the control chip is configured with a charge control pin, a discharge control pin and two or more voltage detection pins, the voltage detection pins of the control chip are connected with the battery positive interface and the battery negative interface in a one-to-one correspondence manner, the charge control pin of the control chip is connected with the gate of the switch tube Q1, the discharge control pin of the control chip is connected with the gate of the switch tube Q2, the source of the switch tube Q2 is connected with the battery negative interface, the drain of the switch tube Q2 is connected with the drain of the switch tube Q1, and the source of the switch tube Q1 is connected with the charge negative interface. In this embodiment, the control chip of the above-mentioned type is internally provided with the voltage detection circuit and the delay circuit, so that overcharge, overdischarge and overcurrent protection during the charging and discharging process of the battery can be realized.
Further as a preferred implementation manner, in this embodiment, the voltage conversion module includes a conversion chip of a model IP2312, an inductor L1, a resistor R1, and a capacitor C1, the conversion chip is configured with a switch pin, a voltage input pin, and a voltage output pin, the voltage input pin of the conversion chip is connected to the charging positive interface, the switch pin of the conversion chip is connected to one end of the inductor L1, the other end of the inductor L1 is connected to the battery positive interface and one end of the resistor R1, the other end of the resistor R1 is connected to the voltage output pin of the conversion chip and one end of the capacitor C1, and the other end of the capacitor C1 is connected to the charging negative interface. In this embodiment, the conversion chip of model is a synchronous step-down charging chip, and its inside integration has high power MOS pipe, and built-in soft start function can prevent the too big trouble that arouses of impulse current when starting, and still dispose excessive pressure, under-voltage and excess temperature protect function, plays certain guard action to the battery in battery charging process.
The application also discloses a battery device, its first embodiment includes the battery and above the first embodiment of battery charge-discharge control circuit, the positive pole of battery with battery positive pole interface links to each other, the negative pole of battery with battery negative pole interface links to each other.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (6)
1. A battery charge-discharge control circuit is characterized in that: the method comprises the following steps:
the charging positive electrode interface is used for being connected with a positive electrode power supply interface of an external charger;
the charging negative electrode interface is used for being connected with a negative electrode power supply interface of an external charger;
the battery positive electrode interface is used for being connected with the positive electrode of the battery;
the battery negative electrode interface is used for being connected with the negative electrode of the battery;
the discharging positive electrode interface is used for being connected with the positive electrode of the battery, and the battery positive electrode interface is connected with the discharging positive electrode interface;
a discharging negative electrode interface disposed with the charging negative electrode interface;
the voltage conversion module is respectively connected with the charging positive electrode interface, the charging negative electrode interface and the battery positive electrode interface, and is used for performing amplitude conversion on the charging voltage input by the charging positive electrode interface and the charging negative electrode interface and outputting the charging voltage to the battery positive electrode interface;
and the charging and discharging control module is respectively connected with the battery anode interface, the battery cathode interface and the charging cathode interface and is used for controlling the electrical connection of the battery cathode interface and the charging cathode interface according to the potentials of the battery anode interface and the battery cathode interface.
2. The battery charging and discharging control circuit according to claim 1, wherein: the charging and discharging control module comprises a control chip, a switch tube Q1 and a switch tube Q2, wherein the control chip is provided with a charging control pin, a discharging control pin and two or more voltage detection pins, the voltage detection pins of the control chip are connected with a battery anode interface and a battery cathode interface in a one-to-one correspondence manner, the charging control pin of the control chip is connected with a grid electrode of the switch tube Q1, the discharging control pin of the control chip is connected with a grid electrode of the switch tube Q2, a source electrode of the switch tube Q2 is connected with a battery cathode interface, a drain electrode of the switch tube Q2 is connected with a drain electrode of the switch tube Q1, and a source electrode of the switch tube Q1 is connected with the charging cathode interface.
3. The battery charging and discharging control circuit according to claim 2, wherein: the model of the control chip is HY 2113.
4. The battery charging and discharging control circuit according to claim 1, wherein: the voltage conversion module includes conversion chip, inductance L1, resistance R1 and electric capacity C1, the conversion chip disposes switch pin, voltage input pin and voltage output pin, the conversion chip the voltage input pin with the anodal interface that charges is connected, the conversion chip the switch pin with inductance L1's one end links to each other, inductance L1's the other end respectively with battery anodal interface and resistance R1's one end links to each other, resistance R1's the other end respectively with the conversion chip the voltage output pin with electric capacity C1's one end links to each other, electric capacity C1's the other end with the negative pole interface that charges is connected.
5. The battery charging and discharging control circuit according to claim 4, wherein: the model of the conversion chip is IP 2312.
6. A battery device, characterized in that: the battery charging and discharging control circuit comprises a battery and the battery charging and discharging control circuit according to any one of claims 1 to 5, wherein the positive electrode of the battery is connected with the positive electrode interface of the battery, and the negative electrode of the battery is connected with the negative electrode interface of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021089157.3U CN212435390U (en) | 2020-06-12 | 2020-06-12 | Battery charging and discharging control circuit and battery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021089157.3U CN212435390U (en) | 2020-06-12 | 2020-06-12 | Battery charging and discharging control circuit and battery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212435390U true CN212435390U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021089157.3U Active CN212435390U (en) | 2020-06-12 | 2020-06-12 | Battery charging and discharging control circuit and battery device |
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| Country | Link |
|---|---|
| CN (1) | CN212435390U (en) |
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- 2020-06-12 CN CN202021089157.3U patent/CN212435390U/en active Active
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