CN201336339Y - Battery module - Google Patents

Abstract

The utility model discloses a battery module, which is used for supplying power to electric equipment and comprises an energy battery device, a power battery device and a charging device; the energy battery device is provided with a plurality of conductive plates which are mutually parallel and superposed and a plurality of battery packs which are butted between the conductive plates, and two conductive plates arranged on the outer sides are respectively provided with a positive electrode wiring part and a negative electrode wiring part; the power battery device is provided with a power battery pack consisting of a plurality of power type batteries which are mutually connected in series; the charging device is provided with a positive input end, a negative input end, a positive output end and a negative output end; the positive input end and the negative input end are respectively electrically connected with the positive wiring part and the negative wiring part; the positive output end is electrically connected to the positive electrode of the power battery pack and the positive electrode of the electric equipment, and the negative output end is electrically connected to the negative electrode of the power battery pack and the negative electrode of the electric equipment. The utility model discloses can exert the advantage of two kinds of batteries, safety, capacious and with low costs moreover.

Description

battery module

technical field

The utility model relates to a battery combination technology, in particular to a battery module.

Background technique

At present, many electrical equipment such as electric vehicles need to be powered by batteries, and batteries are divided into energy-type batteries and power-type batteries.

However, the energy-type battery has a high battery capacity, but in a high-current working environment, the temperature is high and the aging speed is fast, so it is not safe to use. The power type battery has higher output power, but the battery capacity is low and the price is high, its battery capacity is often half of the energy type battery, and the price is often 2 to 3 times that of the energy type battery.

Utility model content

The main purpose of the present utility model is to provide a battery module which has large capacity, safety and low cost to solve the defects of the above-mentioned background technology.

In order to achieve the above purpose, the battery module provided by the utility model can supply power for electric equipment, and the electric equipment has positive and negative poles. The battery module includes an energy battery device, a power battery device and a charging device; the energy battery device has a plurality of conductive plates stacked parallel to each other and a number of energy battery groups abutted between the conductive plates, and two conductive plates placed outside The plates are respectively provided with a positive terminal and a negative terminal; the power battery device has a power battery pack composed of a number of power batteries connected in series; the charging device has a positive input terminal, a negative input terminal, a positive output terminal and A negative output terminal; the positive input terminal and the negative input terminal are electrically connected to the positive terminal and the negative terminal respectively; the positive output terminal is electrically connected to the positive pole of the power battery pack and the positive pole of the electrical equipment, and the negative output terminal is electrically connected to To the negative pole of the power battery pack and the negative pole of the electrical equipment.

In summary, the battery module of the utility model is used in conjunction with an energy-type battery and a power-type battery. The power-type battery is used to directly supply power to the electrical equipment, and the energy-type battery is used to provide auxiliary power for the electrical equipment with a small current, and the energy-type battery It can charge the power type battery, so that the advantages of the two batteries can be played, so it is safe, large in capacity and low in cost.

Description of drawings

In the accompanying drawings of the manual:

FIG. 1 is a schematic circuit diagram of an embodiment of the battery module of the present invention.

The reference numerals of each element in the figure are explained as follows:

battery module 100

Energy battery device 1 conductive plate 11

Energy battery pack 12 Energy battery 121

Positive terminal 13 Negative terminal 14

The first battery protection circuit 15 Positive input part 151

Negative input part 152 Positive output part 153

Negative output part 154 Charging device 2

Positive input terminal 21 Negative input terminal 22

Positive output terminal 23 Negative output terminal 24

Power battery device 3 Power battery pack 31

Power battery 311 Second battery protection circuit 32

Positive input conductor 321 Negative input conductor 32

Positive output conductor 323 Negative output conductor 324

Positive terminal 325 Negative terminal 326

Detailed ways

In order to illustrate the technical content, structural features, purpose and effect of the present utility model in detail, the following examples are given to illustrate in detail with accompanying drawings.

Please refer to FIG. 1 , the battery module 100 of the present invention includes an energy battery device 1 , a charging device 2 and a power battery device 3 .

The energy battery device 1 includes a plurality of conductive plates 11 and a plurality of energy battery groups 12 stacked parallel to each other. The conductive plate 11 is roughly in the shape of a rectangular plate, and the energy battery pack 12 includes a plurality of energy batteries 121 connected in parallel and electrically connected between the conductive plates 11 . The two conductive plates 11 placed on the outside are respectively provided with a positive terminal 13 and a negative terminal 14, and the positive terminal 13 is opposite to the negative terminal 14, so that it is easy to ensure that each energy type battery 121 and the conductive plate 11 correspond to the positive terminal. The total resistance of the part between the negative electrode connecting portion 13 and the negative electrode connection portion 14 is equal, so that it is easy to ensure that the discharge current and discharge time of each energy-type battery 121 are consistent and improve the discharge efficiency of the battery.

A first battery protection circuit 15 is connected between the positive connection part 13 and the negative connection part 14, and the first battery protection circuit 15 includes a positive input part 151, a negative input part 152, a positive output part 153 and a negative output part 154 . The positive input part 151 and the negative input part 152 are respectively connected to the positive connection part 13 and the negative connection part 14 . The positive input part 151 is electrically connected to the positive output part 153 , and the negative input part 152 is electrically connected to the negative output part 154 . The first battery protection circuit 15 detects the current, voltage and temperature of the energy type battery 121, so as to achieve the purpose of protecting the battery.

The charging device 2 includes a positive input terminal 21 , a negative input terminal 22 , a positive output terminal 23 and a negative output terminal 24 . The positive input terminal 21 is connected to the positive output part 153 , and the negative input terminal 22 is connected to the negative output part 154 , so that the energy battery device 1 can supply power to the charging device 2 .

The power battery device 3 includes a power battery pack 31 and a second battery protection circuit 32 . The power battery pack 31 is composed of several power batteries 311 connected in series. The second battery protection circuit 32 includes a positive input conductor 321 , a negative input conductor 322 , a positive output conductor 323 , a negative output conductor 324 , a positive connection terminal 325 and a negative connection terminal 326 . The positive pole and the negative pole of the power battery pack 31 are connected to the positive pole connecting terminal 325 and the negative pole connecting terminal 326 respectively, the positive pole input conductor 321 is connected to the positive pole output terminal 23 of the charging device 2, and the negative pole input conductor 322 is connected to the positive pole connecting terminal 326. The negative output terminal 24 of the charging device 2 is connected.

The positive output conductor 323 is connected to the positive pole (not shown in the figure) of the electric device, and the negative output conductor 324 is connected to the negative pole (not shown in the figure) of the electric device. The second battery protection circuit 32 detects the current, voltage and temperature of the power battery pack 31, so as to achieve the purpose of protecting the battery. The charging device 2 can charge the power battery device 3 after obtaining electric energy from the energy battery device 1 .

When the battery module 100 of the present invention is working, the power battery device 3 and the charging device 2 jointly supply power to the electrical equipment. The power battery device 3 provides a large working current for the electric equipment, and the charging device 2 provides a small working current for the electric equipment through the energy battery device 1 . After the power battery 311 in the power battery device 3 is fully discharged, the charging device 2 charges the power battery 311 through the energy battery device 1 and supplies power to the electrical equipment. When the power battery device 3 is charged to saturation, it is discharged again. In this embodiment, the power battery 311 is a lithium battery, and the battery module of the present invention can be used in vehicles such as electric bicycles.

In summary, the battery module 100 of the present utility model is used in conjunction with the energy-type battery 121 and the power-type battery 311, and the power-type battery 311 is used to directly supply power to the electrical equipment, and the energy-type battery 121 is used to provide auxiliary power for the electrical equipment with a small current. , and the energy-type battery 121 can charge the power-type battery 311, so that the advantages of the two types of batteries can be brought into play, so it is safe, has a large capacity and is low in cost.

Claims (4)

1. a battery module is used to the power consumption equipment power supply, and power consumption equipment has positive pole and negative pole, it is characterized in that: this battery module comprises an energy cell device, a capacity cell device and a charging device; The energy cell device has the stacked some conductive plates that are parallel to each other and reaches the some energy cell groups that are connected to mutually between the conductive plate, and two conductive plates of putting in the outside are respectively arranged with an anodal wire connecting portion and a negative pole wire connecting portion; The capacity cell device has a capacity cell group of being made up of the power-type battery of some mutual series connection; Charging device has an electrode input end, a negative input, a cathode output end and a cathode output end; Electrode input end and negative input electrically connect with anodal wire connecting portion and negative pole wire connecting portion respectively; Cathode output end is electrically connected to the positive pole of capacity cell group and the positive pole of power consumption equipment, and cathode output end is electrically connected to the negative pole of capacity cell group and the negative pole of power consumption equipment.

2. battery module according to claim 1 is characterized in that: the energy cell group of described energy cell device comprises and somely is connected in parallel and is electrically connected to energy type battery between the described conductive plate.

3. battery module according to claim 1, it is characterized in that: described energy cell device is provided with one first battery protecting circuit, and this first battery protecting circuit comprises an anodal input part, a negative pole input part, an anodal efferent and a negative pole efferent; Anodal input part and negative pole input part link to each other with described anodal wire connecting portion and negative pole wire connecting portion respectively, and anodal efferent links to each other with described electrode input end, and the negative pole efferent links to each other with described negative input.

4. battery module according to claim 1, it is characterized in that: described capacity cell device is provided with one second battery protecting circuit, and this second battery protecting circuit comprises an anodal input electric conductor, negative pole input electric conductor, an anodal output electric conductor, a negative pole output electric conductor, an anode connection terminal and a negative pole link; The positive pole of described capacity cell group and negative pole link to each other with anode connection terminal and negative pole link respectively, anodal input electric conductor links to each other with the cathode output end of described charging device, negative pole input electric conductor links to each other with the cathode output end of described charging device, anodal output electric conductor links to each other with the positive pole of power consumption equipment, and negative pole output electric conductor links to each other with the negative pole of power consumption equipment.

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