CN213637167U - Stepped double-battery charger - Google Patents
Stepped double-battery charger Download PDFInfo
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- CN213637167U CN213637167U CN202022472297.5U CN202022472297U CN213637167U CN 213637167 U CN213637167 U CN 213637167U CN 202022472297 U CN202022472297 U CN 202022472297U CN 213637167 U CN213637167 U CN 213637167U
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Abstract
The utility model discloses a cascaded double cell charger, including buck rectifier circuit, filter circuit, first order charging circuit and second level charging circuit, the 220V alternating current is connected to buck rectifier circuit's input, and filter circuit is connected to buck rectifier circuit's output, and first order charging circuit and second level charging circuit are connected respectively to filter circuit, and second level charging circuit is still connected to first order charging circuit. The utility model discloses cascaded double cell charger adopts the commercial power supply, not only has harmonic interference inhibit function, still has cascaded charging effect simultaneously, when needs emergency use, can fill a battery earlier, recharges another, also can select two to fill together, and the function is various, and the selection is convenient, and the practicality is strong.
Description
Technical Field
The utility model relates to a charger technical field specifically is a cascaded double cell charger.
Background
The charger is the most common electronic equipment in daily life, and the charger is required to be used for supplying power for the common electronic equipment such as a mobile phone, a tablet personal computer and the like and equipment such as an automobile, a portable fan and the like.
Most of existing chargers are single in function and only capable of supplying power singly, when a plurality of batteries need to be charged, only one even charge method is available, if a battery needs to be fully charged in an emergency, a good charge selection cannot be adopted, and improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cascaded double cell charger to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a stepped double-battery charger comprises a voltage reduction rectification circuit, a filter circuit, a first-stage charging circuit and a second-stage charging circuit, wherein the input end of the voltage reduction rectification circuit is connected with 220V alternating current, the output end of the voltage reduction rectification circuit is connected with the filter circuit, the filter circuit is respectively connected with the first-stage charging circuit and the second-stage charging circuit, the first-stage charging circuit is further connected with the second-stage charging circuit, the voltage reduction rectification circuit comprises a rectifier T connected with a transformer W, the filter circuit comprises an inductor L1, a capacitor C1 and a capacitor C2, the first-stage charging circuit comprises a storage battery E1, a resistor R1, a resistor R2 and a triode V1, the second-stage charging circuit comprises a relay K and a storage battery E2, one end of the capacitor C1 is connected with the voltage output end of the inductor L1 and the rectifier T, the other end of the inductor L1 is connected with a capacitor C539, The other end of the resistor R1, the cathode of the diode D1, the coil of the relay K and the anode of the storage battery E2 are connected, the other end of the resistor R1 is connected with the resistor R2 and the base of the triode V1, the collector of the triode V1 is connected with the anode of the diode D1 and the other end of the coil of the relay K, the emitter of the triode V1 is connected with the anode of the diode D3, the cathode of the storage battery E2 is connected with the contact K-1 of the relay K and the switch S1, the other end of the switch S1 is connected with the other end of the contact K-1 of the relay K, the cathode of the diode D3, the other end of the resistor R2, the cathode of the storage battery E1, the other.
As a further technical solution of the present invention: the diode D1 and the diode D2 are zener diodes.
As a further technical solution of the present invention: the triode V1 is an NPN triode.
As a further technical solution of the present invention: the diode D3 is a light emitting diode.
As a further technical solution of the present invention: the relay K is a normally open contact relay.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses cascaded double cell charger adopts the commercial power supply, not only has harmonic interference inhibit function, still has cascaded charging effect simultaneously, when needs emergency use, can fill a battery earlier, recharges another, also can select two to fill together, and the function is various, and the selection is convenient, and the practicality is strong.
Drawings
Fig. 1 is a circuit diagram of the present invention.
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 work belong to the protection scope of the present invention.
Referring to fig. 1, a stepped dual battery charger includes a buck rectifying circuit, a filter circuit, a first charging circuit and a second charging circuit, the input end of the buck rectifying circuit is connected to 220V ac, the output end of the buck rectifying circuit is connected to the filter circuit, the filter circuit is connected to the first charging circuit and the second charging circuit, the first charging circuit is further connected to the second charging circuit, the buck rectifying circuit includes a rectifier T connected to a transformer W, the filter circuit includes an inductor L1, a capacitor C1 and a capacitor C2, the first charging circuit includes a battery E1, a resistor R1, a resistor R2 and a triode V1, the second charging circuit includes a relay K and a battery E2, one end of the capacitor C1 is connected to the voltage output ends of the inductor L1 and the rectifier T, the other end of the inductor L1 is connected to the capacitor C2, and the cathode of the diode D2, The battery system comprises a positive electrode of a storage battery E1, a resistor R1, a cathode of a diode D1, a coil of a relay K and a positive electrode of a storage battery E2, the other end of a resistor R1 is connected with a resistor R2 and a base electrode of a triode V1, a collector electrode of a triode V1 is connected with an anode of a diode D1 and the other end of the coil of the relay K, an emitter electrode of a triode V1 is connected with an anode of a diode D3, a negative electrode of a storage battery E2 is connected with a contact K-1 of the relay K and a switch S1, and the other end of a switch S1 is connected with the other end of a contact K-1 of the relay K, the cathode of a diode D3, the other end of a resistor R2, the negative electrode of a.
The working principle is as follows: after the voltage of 220V alternating current mains supply is reduced by a transformer W, the direct current voltage is output through rectification of a rectifier T, the voltage outputs stable direct current voltage through a pi-type filter consisting of a capacitor C1, a capacitor C2 and an inductor L1, the pi-type filter can filter harmonic interference of the mains supply, a diode D2 is a voltage stabilizing diode, a storage battery E1 is charged at the moment, the voltage of the E1 at the moment is lower, the voltage divided by a resistor R1 and a resistor R2 cannot meet the conduction condition of a triode V1, a triode V1 is not conducted, a coil of a relay K is not electrified, a contact K-1 of the relay K is in a disconnected state, the storage battery E2 is not charged at the moment, the charging current of the storage battery E1 can be guaranteed not to be weakened, E1 can be charged quickly and is convenient to use in emergency, and after the voltage of the storage battery E1 is increased to a certain value, the voltage is output through a resistor R1, The voltage divided by the resistor R2 can meet the conduction condition of the triode V1, the triode V1 is conducted, the coil of the relay K is electrified, therefore, the contact K-1 is in a closed state, the storage battery E2 starts to charge, the effect of step-type charging is realized, if two batteries are charged together, the circuit of the storage battery E2 can be switched on only by closing the switch S1, and the synchronous charging is realized.
In embodiment 2, in addition to embodiment 1, the diode D2 is a light emitting diode and can be used as an indicator light for indicating whether or not the battery E1 is fully charged.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The stepped double-battery charger comprises a voltage reduction rectifying circuit, a filter circuit, a first-stage charging circuit and a second-stage charging circuit, and is characterized in that the input end of the voltage reduction rectifying circuit is connected with 220V alternating current, the output end of the voltage reduction rectifying circuit is connected with the filter circuit, the filter circuit is respectively connected with the first-stage charging circuit and the second-stage charging circuit, the first-stage charging circuit is also connected with the second-stage charging circuit, the voltage reduction rectifying circuit comprises a rectifier T which is formed by mutually connecting a transformer W, the filter circuit comprises an inductor L1, a capacitor C1 and a capacitor C2, the first-stage charging circuit comprises a storage battery E1, a resistor R1, a resistor R2 and a triode V1, the second-stage charging circuit comprises a relay K and a storage battery E2, one end of the capacitor C1 is connected with the voltage output ends of the inductor L1 and the rectifier T, the other end of, The battery system comprises a positive electrode of a storage battery E1, a resistor R1, a cathode of a diode D1, a coil of a relay K and a positive electrode of a storage battery E2, the other end of a resistor R1 is connected with a resistor R2 and a base electrode of a triode V1, a collector electrode of a triode V1 is connected with an anode of a diode D1 and the other end of the coil of the relay K, an emitter electrode of a triode V1 is connected with an anode of a diode D3, a negative electrode of a storage battery E2 is connected with a contact K-1 of the relay K and a switch S1, and the other end of a switch S1 is connected with the other end of a contact K-1 of the relay K, the cathode of a diode D3, the other end of a resistor R2, the negative electrode of a.
2. The stepped dual battery charger of claim 1, wherein said diodes D1 and D2 are zener diodes.
3. The stepped dual battery charger of claim 1, wherein said transistor V1 is an NPN transistor.
4. The stepped dual battery charger as recited in claim 1 wherein said diode D3 is a light emitting diode.
5. A stepped dual battery charger as claimed in any one of claims 1 to 4, wherein the relay K is a normally open contact relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022472297.5U CN213637167U (en) | 2020-10-31 | 2020-10-31 | Stepped double-battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022472297.5U CN213637167U (en) | 2020-10-31 | 2020-10-31 | Stepped double-battery charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213637167U true CN213637167U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022472297.5U Active CN213637167U (en) | 2020-10-31 | 2020-10-31 | Stepped double-battery charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213637167U (en) |
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2020
- 2020-10-31 CN CN202022472297.5U patent/CN213637167U/en active Active
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