CN215009718U

CN215009718U - Lead-acid battery charging protector

Info

Publication number: CN215009718U
Application number: CN202121501155.5U
Authority: CN
Inventors: 马永跃
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-12-03
Anticipated expiration: 2031-07-02

Abstract

The utility model provides a lead-acid batteries charge protector, including power input end and output, still including set up alternating current switch between power input end and output, the step-down module of being connected with power input end, be connected with the step-down module and be used for rectification behind the step-down rectification module, be connected with the rectification module and be used for the filtering module of rectification after the filtering, be connected with the filtering module and be used for the voltage stabilizing module that carries out the steady voltage to the voltage after being connected with the voltage stabilizing module and be used for the control module of charge protection control, control module is connected with alternating current switch through the zero passage switch who is used for controlling the alternating current switch break-make to power input end loops through step-down module, rectification module, filtering module, voltage stabilizing module, control module and zero passage switch connection form the charge protection circuit that carries out lead-acid batteries charge protection through controlling alternating current switch. Through the utility model discloses can effectively carry out charging protection to lead acid battery, prolong lead acid battery's life.

Description

Lead-acid battery charging protector

Technical Field

The utility model belongs to the charge protection field especially relates to a lead acid battery charging protector.

Background

In the process of charging the lead-acid battery, chargers of various brands in the market cannot charge the lead-acid battery according to the characteristics of the lead-acid battery, so that the problems of insufficient charge or overcharge and the like are solved. Many commercial chargers charge lead-acid batteries at constant current and constant voltage, and when the batteries are charged to ninety percent or so, the batteries are not converted into trickle charge. The continuous charging of the lead-acid battery can lead to the thinning of a grid metal layer, so that active substances of a polar plate are hardened and fall off, water loss and storage battery deformation are generated, grids are easy to break, the service life of the lead-acid battery is seriously influenced, the lead-acid battery is eliminated early, and the use value of the lead-acid battery is reduced. Thus, a lead-acid battery charging protector is needed to meet the use requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lead-acid batteries charge protector can effectively carry out charge protection to lead-acid batteries, prolongs lead-acid batteries's life.

In order to realize the purpose, the lead-acid battery charging protector comprises a power input end connected with mains supply and an output end connected with a charger, and further comprises an alternating current switch arranged between the power input end and the output end and used for controlling the on-off of output, a voltage reduction module connected with the power input end and used for reducing the voltage of the input mains supply, a rectification module connected with the voltage reduction module and used for rectifying after voltage reduction, a filtering module connected with the rectification module and used for filtering after rectification, a voltage stabilization module connected with the filtering module and used for stabilizing the voltage after filtering, and a control module connected with the voltage stabilization module and used for charging protection control, wherein the control module is connected with the alternating current switch through a zero-crossing switch used for controlling the on-off of the alternating current switch, so that the power input end is connected with the voltage reduction module, the rectification module, the filtering module, the voltage stabilization module, the control module and the zero-crossing switch sequentially to form charging protection for charging the lead-acid battery through controlling the alternating current switch And protecting the circuit.

Preferably, the power input end is provided with the second connector that is used for the first connector of being connected with the commercial power live wire and is connected with the commercial power zero line, the second connector is connected with the live wire output joint of output through alternating current switch, the second connector is connected with the zero line output joint of output, alternating current switch is bidirectional thyristor, zero passage switch is connected with alternating current switch's control end.

Preferably, the zero-cross switch is provided with a relevant coupler, one end of the switch side of the coupler is connected with the first connecting head through a sixth resistor, and the other end of the switch side of the coupler is connected with the control end of the alternating current switch through a seventh resistor to form a step-down switch control circuit; and the positive end of the control side of the off-coupler is connected with the power supply end of the control module, and the negative end of the control side of the off-coupler is connected with one end of the control module for on-off control.

Preferably, the control module is provided with a single chip microcomputer, one end of the single chip microcomputer for on-off control is connected with the negative end of the control side of the off coupler through a fifth resistor, and a power supply end of the single chip microcomputer is connected with the voltage stabilizing module.

Preferably, the power supply end of the single chip microcomputer is connected with the second connector through a third capacitor and a fourth capacitor respectively, so that a clutter filtering module is formed through the third capacitor and the fourth capacitor.

Preferably, the voltage reduction module includes a first capacitor, a second resistor and a third resistor, the second resistor and the third resistor are connected in series and then connected in parallel to two ends of the first capacitor, and the positive end of the first capacitor is connected to the first connection terminal and the other end of the first capacitor is connected to the rectification module through the first resistor.

Preferably, the rectifying module is provided with a first diode and a second diode, the positive end of the first diode is connected with the opposite end of the first resistor and the first capacitor connecting end, the negative end of the first diode is connected with the filtering module, the positive end of the second diode is connected with the second connecting head, and the negative end of the second diode is connected with the positive end of the first diode.

Preferably, the filter module is provided with a filter capacitor, a positive end of the filter capacitor is connected with a negative end of the first diode, and a negative end of the filter capacitor is connected with the second connector.

Preferably, the voltage stabilizing module is provided with a fourth resistor and a voltage stabilizing diode, one end of the fourth resistor is connected with the cathode end of the first diode and the other end of the fourth resistor is connected with the control module, the cathode end of the voltage stabilizing diode and the fourth resistor are connected with the connecting end of the control module and the other end of the voltage stabilizing diode is connected with the second connecting head.

Compared with the prior art, the utility model, its beneficial effect lies in:

the utility model discloses well power input end loops through step-down module, rectifier module, filtering module, voltage stabilizing module, control module and zero passage switch connect and form the charge protection circuit who carries out lead-acid batteries charge protection through control AC switch for can effectively carry out intermittent type nature according to lead-acid batteries's characteristic control and charge, avoid long-time continuous charging, thereby can effectively carry out charge protection to lead-acid batteries, prolong lead-acid batteries's life. Through the utility model discloses can solve most charger on the market to the not enough problem of lead acid battery charging protection, prolong the life of lead acid battery and charger to the user need not frequently change lead acid battery and charger, saves use cost. Through the utility model discloses make the life of lead acid battery and charger obtain the extension, can alleviate the pollution to the environment, be favorable to the environmental protection, have good economic benefits and social.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1-2, the utility model provides a lead-acid battery charging protector, including be used for with mains connection's power input end 1 and be used for with the output 2 that the charger is connected, still including setting up alternating current switch T1 that is used for controlling the break-make of output between power input end 1 and output 2, be connected with power input end 1 and be used for carrying out the step-down module 3 that steps down to the input commercial power, be connected with step-down module 3 and be used for rectifying rectifier module 4 after stepping down, be connected with rectifier module 4 and be used for filtering filter module 5 after the rectification, be connected with filter module 5 and be used for carrying out voltage stabilization to voltage stabilizing module 6 and be connected with control module 7 that is used for charging protection control, control module 7 is connected with alternating current switch T1 through zero cross switch 8 that is used for controlling alternating current switch T1, thereby power input end 1 loops through step-down module 3, The rectification module 4, the filtering module 5, the voltage stabilizing module 6, the control module 7 and the zero-crossing switch 8 are connected to form a charging protection circuit for performing charging protection on the lead-acid battery by controlling the alternating-current switch T1. In this embodiment, power input 1 can set up to the plug, thereby output 2 can set up to the socket structure and conveniently connect, and overall structure sets up in the protection water protective housing.

The power input end 1 is provided with a first connector AC1 used for being connected with a live wire of a mains supply and a second connector AC2 connected with a zero line of the mains supply, the second connector AC2 is connected with a live wire output connector Vout1 of the output end 2 through an alternating current switch T1, the second connector AC2 is connected with a zero line output connector Vout2 of the output end 2, the alternating current switch T1 is a bidirectional thyristor switch, and a zero-cross switch 8 is connected with a control end of the alternating current switch T1.

The zero-cross switch 8 is provided with a relevant coupler U1, one end of the switch side of the switch-off coupler U1 is connected with the first connecting head AC1 through a sixth resistor R6, and the other end of the switch side of the switch-off coupler U1 is connected with the control end of the alternating current switch T1 through a seventh resistor R7 to form a voltage reduction switch control circuit; the positive control side terminal of the off-coupler U1 is connected to the power supply terminal of the control module 7 and the negative control side terminal of the off-coupler U1 is connected to the terminal of the control module 7 for on-off control.

The control module 7 is provided with a singlechip IC1, one end of the singlechip IC1 for on-off control is connected with the negative end of the control side of the off coupler U1 through a fifth resistor R5, and the power supply end of the singlechip IC1 is connected with the voltage stabilizing module 6. The power supply end of the single chip microcomputer IC1 is connected with the second connector AC2 through a third capacitor C3 and a fourth capacitor C4 respectively, so that the noise filtering module 9 is formed through the third capacitor C3 and the fourth capacitor C4.

The voltage reduction module 3 comprises a first capacitor C1, a second resistor R2 and a third resistor R3, the second resistor R2 and the third resistor R3 are connected in series and then connected in parallel to two ends of a first capacitor C1, the positive end of the first capacitor C1 is connected with a first connection AC1, and the other end of the first capacitor C1 is connected with the rectification module 4 through the first resistor R1. The rectifying module 4 is provided with a first diode D1 and a second diode D2, the positive terminal of the first diode D1 is connected with the opposite end of the connection end of the first resistor R1 and the first capacitor C1 and the negative terminal of the first diode D1 is connected with the filtering module 5, the positive terminal of the second diode D2 is connected with the second connection AC2 and the negative terminal of the second diode D2 is connected with the positive terminal of the first diode D1. The filter module 5 is provided with a filter capacitor C2, the positive end of the filter capacitor C2 is connected with the negative end of the first diode D1, and the negative end of the filter capacitor C2 is connected with the second connector AC 2. The voltage stabilizing module 6 is provided with a fourth resistor R4 and a voltage stabilizing diode D3, the fourth resistor R4 is connected with the negative terminal of the first diode D1 at one end and the control module 7 at the other end, the negative terminal of the voltage stabilizing diode D3 and the fourth resistor R4 are connected with the connection terminal of the control module 7 and the second connection terminal AC2 at the other end.

In the present embodiment, a control program written according to the characteristics of the lead-acid battery is written in the single chip microcomputer IC 1. When the charger works, the power input end 1 is connected with commercial power, and the output end 2 is connected with the charger. The mains supply connected to the power input end 1 sequentially passes through the voltage reduction module 3, the rectification module 4, the filtering module 5 and the voltage stabilization module 6 to supply power to the control module 7, the control module 7 controls the conduction of the alternating current switch T1 through the zero-crossing switch 8 to enable the lead-acid battery to be charged, after the lead-acid battery is charged to a set time, the control module 7 controls the disconnection of the alternating current switch T1 through the zero-crossing switch 8, the alternating current switch T1 is conducted to continue charging after the set time, the intermittent charging is conducted by continuously controlling the on-off of the alternating current switch T1, the time of conducting charging at each time can be gradually reduced until the charging amount of the lead-acid battery reaches the trickle charging control amount of the charger, the charging indication is changed into a green light, and the trickle charging state is changed into a full state. Thereby pass through the utility model discloses can effectively carry out intermittent type nature according to lead-acid batteries's characteristic control and charge, avoid long-time continuous charging to can effectively carry out charge protection, extension lead-acid batteries's life to lead-acid batteries.

The foregoing is merely a preferred embodiment of the invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed in the above teachings or as known to the person skilled in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A lead-acid battery charging protector comprises a power input end (1) connected with a mains supply and an output end (2) connected with a charger, and is characterized by further comprising an alternating current switch (T1) arranged between the power input end (1) and the output end (2) and used for controlling the on-off of output, a voltage reduction module (3) connected with the power input end (1) and used for reducing the voltage of the input mains supply, a rectification module (4) connected with the voltage reduction module (3) and used for rectification after voltage reduction, a filtering module (5) connected with the rectification module (4) and used for filtering after rectification, a voltage stabilization module (6) connected with the filtering module (5) and used for stabilizing the voltage after filtering, and a control module (7) connected with the voltage stabilization module (6) and used for charging protection control, wherein the control module (7) is connected with the alternating current switch (T1) through a zero-crossing switch (8) used for controlling the on-off of the alternating current switch (T1), therefore, the power input end (1) is connected with the zero-crossing switch (8) sequentially through the voltage reduction module (3), the rectification module (4), the filtering module (5), the voltage stabilization module (6), the control module (7) to form a charging protection circuit for charging protection of the lead-acid battery through controlling the alternating-current switch (T1).

2. Lead-acid battery charging protector according to claim 1, characterized in that the power input (1) is provided with a first connector (AC1) for connection to the live mains line and a second connector (AC2) for connection to the neutral mains line, the second connector (AC2) is connected to the live line output connector (Vout1) of the output terminal (2) via an AC switch (T1), the second connector (AC2) is connected to the neutral line output connector (Vout2) of the output terminal (2), the AC switch (T1) is a triac, and the zero-crossing switch (8) is connected to the control terminal of the AC switch (T1).

3. A lead-acid battery charging protector according to claim 2, characterized in that the zero-crossing switch (8) is provided with a coupler (U1), one switch side end of the coupler (U1) is connected with the first connecting terminal (AC1) through a sixth resistor (R6) and the other switch side end of the coupler (U1) is connected with the control terminal of the AC switch (T1) through a seventh resistor (R7) to form a voltage-reducing switch control circuit; the positive terminal of the control side of the off-coupler (U1) is connected with the power supply terminal of the control module (7), and the negative terminal of the control side of the off-coupler (U1) is connected with one end of the control module (7) for on-off control.

4. The lead-acid battery charging protector according to claim 3, characterized in that the control module (7) is provided with a single chip microcomputer (IC1), one end of the single chip microcomputer (IC1) for on-off control is connected with the negative terminal of the control side of the off-coupler (U1) through a fifth resistor (R5), and the power supply end of the single chip microcomputer (IC1) is connected with the voltage stabilizing module (6).

5. The lead-acid battery charging protector according to claim 4, characterized in that the power supply terminal of the single chip microcomputer (IC1) is further connected with the second connector (AC2) through a third capacitor (C3) and a fourth capacitor (C4) respectively so as to form a noise filtering module (9) through the third capacitor (C3) and the fourth capacitor (C4).

6. The lead-acid battery charging protector according to claim 2, characterized in that the voltage reduction module (3) comprises a first capacitor (C1), a second resistor (R2) and a third resistor (R3), the second resistor (R2) and the third resistor (R3) are connected in series and then connected in parallel to two ends of the first capacitor (C1), the positive terminal of the first capacitor (C1) is connected with the first connection terminal (AC1) and the other terminal is connected with the rectification module (4) through the first resistor (R1).

7. A lead-acid battery charging protector according to claim 6, characterized in that the rectifying module (4) is provided with a first diode (D1) and a second diode (D2), the positive terminal of the first diode (D1) being connected with the opposite end of the connection of the first resistor (R1) with the first capacitor (C1) and the negative terminal of the first diode (D1) being connected with the filtering module (5), the positive terminal of the second diode (D2) being connected with the second connection (AC2) and the negative terminal of the second diode (D2) being connected with the positive terminal of the first diode (D1).

8. A lead-acid battery charge protector according to claim 7, characterized in that the filter module (5) is provided with a filter capacitor (C2), the positive terminal of the filter capacitor (C2) is connected with the negative terminal of the first diode (D1), and the negative terminal of the filter capacitor (C2) is connected with the second connector (AC 2).

9. A lead-acid battery charging protector according to claim 7 or 8, characterized in that the zener module (6) is provided with a fourth resistor (R4) and a zener diode (D3), the fourth resistor (R4) being connected at one end to the negative terminal of the first diode (D1) and at the other end to the control module (7), the negative terminal of the zener diode (D3) and the fourth resistor (R4) being connected to the connection of the control module (7) and at the other end to the second connection (AC 2).