CN206640351U - A kind of charging device to charge a battery - Google Patents

Abstract

A charging device for charging a battery, including an isolated regulated power supply, a battery, a circular female socket, a circular male socket I and a circular male socket II; there are four terminals on the female socket, which are respectively Terminal a, terminal b, terminal c, terminal d, battery I is electrically connected between terminal a and terminal d, battery II is electrically connected between terminal b and terminal c; there are four terminals on the male socket I, respectively Terminal A, terminal B, terminal C, terminal D, the positive pole of the outlet end of the isolated regulated power supply is connected in parallel with terminal A and terminal B, and the terminal C is electrically connected to terminal D and then connected to the outlet end of the isolated regulated power supply The negative poles are connected; the male socket II is provided with four terminals, which are respectively terminal I, terminal II, terminal III, and terminal IV, and terminal II is electrically connected to terminal IV. This device uses connectors of the same specifications and models, and uses different connecting wires in the "male and female heads" to realize the function of automatic conversion between series and parallel.

Description

A charging device for charging a storage battery

technical field

The invention relates to a storage battery, in particular to a charging device capable of realizing automatic switching between parallel charging and series power consumption.

Background technique

At present, the known battery packs all adopt the method of charging in series and using in series. A battery pack with multiple batteries connected in series is charged with one charger. Due to the change of internal resistance of the battery and the emergence of backward batteries, the voltage squeeze phenomenon inevitably occurs between single batteries, resulting in overcharging of some batteries in the battery pack. Some are undercharged, and the characteristics of the whole set of batteries deteriorate rapidly, and they are retired and scrapped in advance.

In the existing technology, the series wiring of the power battery pack is fixed, and it needs to be changed to parallel charging and series use. The wiring change during use is quite complicated and cumbersome, and it is very easy to cause accidents due to wrong wiring.

Contents of the invention

According to the deficiencies in the prior art, an automatic switching device and method for parallel charging and serial use of battery packs composed of multiple power storage batteries are provided. The line realizes the function of automatic conversion between series and parallel.

The present invention is realized according to the following technical solutions:

A charging device for charging batteries, including an isolated regulated power supply and multiple batteries, and also includes a circular female socket, a circular male socket I and a circular male socket II; the female socket There are four connection terminals on it, which are terminal a, terminal b, terminal c, and terminal d respectively. The battery I is electrically connected between the terminal a and the terminal d, and the battery I is electrically connected between the terminal b and the terminal c. II: The male socket I is provided with four terminals, which are terminal A, terminal B, terminal C, and terminal D respectively, and the positive pole of the outlet end of the isolated regulated power supply is connected in parallel with terminal A and terminal B , the terminal C is electrically connected to the terminal D and then connected to the negative pole of the outlet end of the isolated regulated power supply; the male socket II is provided with four terminals, which are respectively terminal I, terminal II, terminal III, Terminal IV, the terminal II is electrically connected to the terminal IV.

Preferably, the positive pole of the outlet terminal of the isolated regulated power supply is electrically connected to terminal A through a resistor R1; the positive pole of the outlet terminal of the isolated regulated power supply is electrically connected to terminal B through a resistor R2.

Preferably, the terminal a is electrically connected to the positive pole of the battery I.

Preferably, the terminal b is electrically connected to the positive pole of the storage battery II.

Preferably, the terminal I is electrically connected to the positive pole of the load.

Preferably, the terminal III is electrically connected to the negative pole of the load.

Preferably, the positive and negative poles of the input terminal of the isolated voltage stabilized power supply are connected to 220V alternating current.

Preferably, a notch I is provided on the female socket, and when terminal c and terminal a are respectively inserted into terminal D and terminal A on the male socket I, a notch I is provided on the male socket I. Corresponding notch II; when the terminal IV on the male socket II, the terminal c of the terminal I, and the terminal a, a notch III corresponding to the notch I is provided on the male socket II.

Preferably, a layer of luminous powder is coated in the notch I, notch II and notch III respectively, and a transparent plastic plate is arranged on the luminous powder.

Beneficial effects of the present invention:

In the present invention, parallel charging can avoid the disadvantages of the above-mentioned series charging, and there is no accidental damage to the storage battery, which is beneficial to the healthy operation of the storage battery and continuous use; the power storage battery uses a new method of parallel charging and series power consumption, which can prevent The damage caused by the mutual extrusion of battery charging voltages in series can effectively improve the health level of the battery during use, and can reduce internal resistance to repair outdated batteries, balance capacity, and prolong life. The invention utilizes the butt joint of connectors of the same specification and type to automatically change the battery series and parallel connection modes to meet the needs of charging and power consumption. There is a gap, which avoids the problem of short circuit caused by wrong terminal contact. There is luminous powder in the notch, which solves the problem of quickly finding the notch position in the dark or at night, and inserting it by aligning with the notch, avoiding the problem of short circuit caused by wrong terminal contacts.

Description of drawings

Figure 1 is a schematic diagram of the principle wiring of the parallel charging plug (male socket I) of the present invention

Fig. 2 is a schematic diagram of the principle wiring of the battery pack (female socket) of the present invention;

Figure 3 is a schematic diagram of the principle wiring of the electrical load plug (male socket II) of the present invention;

Fig. 4 is a schematic diagram of the internal electrical wiring of a 36-volt electric vehicle with 3 batteries connected in parallel to the charging plug (male socket I) in a preferred embodiment of the present invention;

Fig. 5 is a schematic diagram of the internal electrical wiring of the socket (female socket) of the battery power supply box of a 36-volt electric vehicle in the first preferred embodiment of the present invention;

Figure 6 is a schematic diagram of the internal electrical wiring of a 36-volt electric vehicle power plug (male socket II) in a preferred embodiment of the present invention;

In the figure: 100—isolated regulated power supply, 200—female socket, 210—terminal a, 220—terminal b, 230—terminal c, 240—terminal d, 300—male socket I, 310—terminal A, 320 —Terminal B, 330—Terminal C, 340—Terminal D, 400—Male socket II, 410—Terminal I, 420—Terminal II, 430—Terminal III, 440—Terminal IV, 510—Battery I, 520—Battery II , 600-notch I, 700-notch II, 800-notch III.

detailed description

The present invention will be further described through specific embodiments below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, a charging device for charging batteries includes an isolated regulated power supply 100, two batteries, a circular female socket 200, a circular male socket I300 and a circular male socket I300. Head socket Ⅱ400.

The female socket 200 is provided with four terminals, which are terminal a210, terminal b220, terminal c230, and terminal d240. The battery I510 is electrically connected between the terminal a210 and the terminal d240. The terminal a210 is electrically connected to the positive pole of the battery I510. The battery II 520 is electrically connected between the b220 and the terminal c230 , and the terminal b220 is electrically connected to the positive electrode of the battery II 520 .

There are four terminals on the male socket I300, which are terminal A310, terminal B320, terminal C330, and terminal D340. The positive pole of the outlet end of the isolated regulated power supply 100 is electrically connected to the terminal A310 through a resistor R1; the isolated regulated power supply The positive pole of the outlet terminal of 100 is electrically connected to the terminal B320 through the resistor R2, and the terminal C330 is electrically connected to the terminal D340, and then connected to the negative pole of the outlet terminal of the isolated regulated power supply 100; the positive and negative poles of the incoming terminal of the isolated regulated power supply 100 Connected with 220V AC.

There are four terminals on the male socket II400, which are terminal I410, terminal II420, terminal III430 and terminal IV440. Terminal II420 is electrically connected to terminal IV440, terminal I410 is electrically connected to the positive pole of the load, and terminal III430 is electrically connected to the negative pole of the load. connected.

A notch I600 is provided on the female socket 200. When the terminal c230 and the terminal a210 are respectively inserted into the terminal D340 and the terminal A310 on the male socket I300, a notch II700 corresponding to the notch I600 is provided on the male socket I300; When the terminal IV440, the terminal I410, the terminal c230, and the terminal a210 on the male socket II400, a notch III800 corresponding to the notch I600 is provided on the male socket II400. A layer of luminous powder is coated inside the notch I600, notch II700 and notch III800 respectively, and a transparent plastic plate is arranged on the luminous powder.

Instructions:

Step 1: Connect the positive and negative lead wires of each battery in the battery box of the battery pack to the corresponding terminals in the female socket;

Step 2: When the male socket Ⅰ is combined with the female socket, that is, when the terminals in the male socket Ⅰ are in contact with the terminals in the female socket, charge each battery in parallel through the equalizing resistor;

Step 3: When the male socket II is combined with the female socket, that is, when the terminals in the male socket II are in contact with the terminals in the female socket, connect each battery in series and draw out the total voltage to drive the load.

Example:

Apply the above theory to 3 batteries of 36-volt electric vehicles.

As shown in Figure 4 to Figure 6, resistor R1, resistor R2, and resistor R3 are parallel charging equalization resistors, male socket Ⅰ, female socket, and male socket Ⅱ are A-type 20-wire connectors of the same specification, and their models are CA—20JZ/KA.

As shown in Figure 4, the positive pole of the outlet end of the isolated regulated power supply is electrically connected to the contacts 11 and 12 on the male socket I through the resistor R1, and is electrically connected to the contacts 4 and 5 on the male socket I through the resistor R2 , through resistor R3 and electrically connected to contacts 17 and 18 on the male socket Ⅰ, and the negative pole of the outlet terminal of the isolated regulated power supply is respectively connected to contacts 1, 2, 7 and 8 on the male socket Ⅰ. Phases 14 and 15 are connected in parallel.

As shown in Figure 5, the first battery is connected between the contacts 11 and 12 on the female socket and the contacts 1 and 2, and the second battery is connected between the contacts 14 and 15 and the contacts 4 and 5 , A third storage battery is connected between the contacts 17, 18 and the contacts 7, 8.

As shown in Figure 6, the contacts 1 and 2 on the male socket II are electrically connected to the contacts 4 and 5, the contacts 14 and 15 are electrically connected to the contacts 17 and 18, and the contacts 11 and 12 are connected to the positive pole of the load. Contacts 7 and 8 are connected to the negative pole of the load.

How to use: When charging, combine the male socket Ⅰ on the charger with the female socket on the battery box, and the three batteries will automatically realize balanced parallel charging; when using electricity, connect the male socket Ⅱ of the power plug of the load Combined with the female socket on the battery box, the three batteries can be connected in series and lead out the total voltage for use.

Although the present invention has been shown and described with particular reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made without departing from what is described in the appended claims. The scope of the utility model. The above has been described in detail in conjunction with specific embodiments of the present invention, but it is not intended to limit the present invention. Any simple modification made to the above embodiments according to the technical essence of the utility model still belongs to the scope of the technical solution of the utility model.

Claims (9)

1. A charging device for charging batteries, including an isolated regulated power supply (100) and multiple batteries, characterized in that it also includes a circular female socket (200), a circular male socket I (300 ) and a round male socket II (400); The female socket (200) is provided with four terminals, which are terminal a (210), terminal b (220), terminal c (230), terminal d (240), and the terminal a (210) and The battery I (510) is electrically connected between the terminals d (240), and the battery II (520) is electrically connected between the terminal b (220) and the terminal c (230); The male socket I (300) is provided with four terminals, which are terminal A (310), terminal B (320), terminal C (330), and terminal D (340). The isolated regulated power supply The positive pole of the outlet end of (100) is connected in parallel with terminal A (310) and terminal B (320), and the terminal C (330) is electrically connected to terminal D (340) and then connected to the isolated voltage stabilized power supply (100). Connect the negative pole of the outlet end; The male socket II (400) is provided with four terminals, which are respectively terminal I (410), terminal II (420), terminal III (430), terminal IV (440), and the terminal II (420) Electrically connected to terminal IV (440). 2. A charging device for charging a storage battery according to claim 1, characterized in that: the positive pole of the outlet end of the isolated regulated power supply (100) is electrically connected to terminal A (310) through a resistor R1; The positive pole of the outlet end of the isolated voltage stabilizing power supply (100) is electrically connected to the terminal B (320) through a resistor R2. 3. The charging device for charging a storage battery according to claim 1, characterized in that the terminal a (210) is electrically connected to the positive electrode of the storage battery I (510). 4. The charging device for charging a storage battery according to claim 1, characterized in that: the terminal b (220) is electrically connected to the positive electrode of the storage battery II (520). 5. A charging device for charging a storage battery according to claim 1, characterized in that: said terminal I (410) is electrically connected to the positive pole of the load. 6. The charging device for charging the storage battery according to claim 1, characterized in that: said terminal III (430) is electrically connected to the negative pole of the load. 7 . The charging device for charging a storage battery according to claim 1 , characterized in that: the positive and negative poles of the input terminal of the isolated stabilized voltage power supply ( 100 ) are connected to 220V alternating current. 8 . 8. A charging device for charging a storage battery according to any one of claims 1 to 7, characterized in that: the female socket (200) is provided with a notch I (600), when the terminal c (230 ), terminal a (210) are respectively inserted into the terminal D (340) and terminal A (310) on the male socket I (300), the male socket I (300) is provided with a gap corresponding to the gap I (600). Corresponding gap II (700); When the terminal IV (440), terminal I (410), terminal c (230) and terminal a (210) on the male socket II (400) are provided with the notch I (600) on the male socket II (400) ) corresponding to the notch Ⅲ (800). 9. A charging device for charging a storage battery according to claim 8, characterized in that: said notch I (600), notch II (700) and notch III (800) are respectively coated with a layer of luminous powder, luminous powder The powder comes with a transparent plastic plate.