CN210224988U - Battery monomer resistance energy consumption type equalizing circuit - Google Patents
Battery monomer resistance energy consumption type equalizing circuit Download PDFInfo
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- CN210224988U CN210224988U CN201921020504.4U CN201921020504U CN210224988U CN 210224988 U CN210224988 U CN 210224988U CN 201921020504 U CN201921020504 U CN 201921020504U CN 210224988 U CN210224988 U CN 210224988U
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Abstract
The utility model discloses a battery monomer resistance energy consumption type equalizing circuit, which comprises a battery monomer collecting module, n battery monomers connected in series or in parallel, n equalizing circuits, wherein n is more than 2; the battery monomer acquisition module is electrically connected with the n battery monomers through the 1 st equalization circuit to the nth equalization circuit respectively; the structure of each equalizing circuit is the same, the nth equalizing circuit comprises a driving circuit and a switch circuit, the switch circuit comprises a field effect tube E2n, a field effect tube E4n and an equalizing resistor RLn, the D pole of the field effect tube E2n is electrically connected with the positive pole of the corresponding battery cell, and the S pole of the field effect tube E2n is electrically connected with one end of the equalizing resistor RLn. The utility model has the characteristics of when low-cost realization heavy current charge-discharge, make each battery monomer voltage of battery balanced, reduce balanced inefficacy.
Description
Technical Field
The utility model belongs to the technical field of the battery charge-discharge technique and specifically relates to a battery monomer resistance energy consumption type equalizer circuit is related to.
Background
At present, the processing requirement of PCB hardware commonly used in the battery industry is very high, and if the quality of a device is poor due to insufficient soldering and missing soldering of the device, the equalizing resistance is in an uncontrolled starting state;
the current general circuit in the battery industry can not realize the balance of larger current, and the general balance solution is that when the balance current is larger than 100mA, the direct current driving capability of the voltage acquisition and driving module is insufficient.
Disclosure of Invention
The utility model discloses an invention purpose is in order to overcome the balanced solution of the battery monomer of the battery among the prior art, when equalizing current is greater than 100mA, voltage acquisition and drive module's direct current driving ability weak not enough, provides a battery monomer resistance energy consumption type equalizer circuit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a battery monomer resistance energy consumption type equalizing circuit comprises a battery monomer acquisition module, n battery monomers connected in series or in parallel, and n equalizing circuits, wherein n is larger than 2; the battery monomer acquisition module is electrically connected with the n battery monomers through the 1 st equalization circuit to the nth equalization circuit respectively; the structure of each equalizing circuit is the same, the nth equalizing circuit comprises a driving circuit and a switching circuit, the switching circuit comprises a field effect transistor E2n, a field effect transistor E4n and an equalizing resistor RLn, the D pole of the field effect transistor E2n is electrically connected with the positive pole of the corresponding battery cell, the S pole of the field effect transistor E2n is electrically connected with one end of the equalizing resistor RLn, the other end of the equalizing resistor RLn is electrically connected with the D pole of the field effect transistor E4n, the S pole of the field effect transistor E4n is electrically connected with the negative pole of the corresponding battery cell, and the G poles of the field effect transistor E2n and the field effect transistor E4n are electrically connected with the driving circuit.
The utility model discloses a balanced MOS composite drive design, power drive MOS adopt low-cost miniwatt MOS drive design, are applicable to the balanced power extension of integrated IC sampling, can realize battery switch devices such as high-power MOS with the low cost, have solved MOS pipe chronogenesis competition problem, make each battery monomer when charge-discharge, can guarantee that the voltage is balanced.
Preferably, the driving circuit includes a diode D1n, a resistor R1n, a resistor R2n, a resistor R7n, a resistor R3n, a resistor Rx1n, a resistor Rx2n, a resistor R5n, a resistor R8n, a resistor R9n, a field effect transistor E1n, a field effect transistor E3n, and a field effect transistor E5 n.
Preferably, the positive electrode of the diode D1n is electrically connected to the cell collecting module, the negative electrode of the diode D1n is electrically connected to one end of the resistor R1n, and the other end of the resistor R1n is electrically connected to one end of the resistor R2n, one end of the resistor R7n, the G electrode of the field effect transistor E1n, and the G electrode of the field effect transistor E3n, respectively.
Preferably, the other end of the resistor R2n and the S pole of the field effect transistor E1n are both grounded; one end of the resistor R3n is electrically connected with the D pole of the field effect transistor E1n, and the other end of the resistor R3n is electrically connected with the G pole of the power switch tube E2n and the single battery collection module respectively.
Preferably, the other end of the resistor R7n is grounded to the S-pole of the fet E3n, the D-pole of the fet E3n is electrically connected to one end of the resistor Rx2n, the other end of the resistor Rx2n is electrically connected to one end of the resistor Rx1n and the G-pole of the fet E5n, the other end of the resistor Rx1n and the D-pole of the fet E5n are connected to BAT +, the S-pole of the fet E5n is electrically connected to one end of the resistor R9n, the other end of the resistor R9n is electrically connected to one end of the resistor R8n and the G-pole of the fet E4n, and the other end of the resistor R8n is grounded.
Therefore, the utility model discloses following beneficial effect has: when realizing heavy current charge-discharge with low cost, make each battery monomer voltage of battery balanced, reduced because the balanced inefficacy that leads to of PCB technology problem of driving MOS pipe.
Drawings
Fig. 1 is a circuit diagram of the present invention.
In the figure: the battery cell collecting module comprises a battery cell collecting module 1, a battery cell 2, an equalizing circuit 3, a driving circuit 31 and a switch circuit 32.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
The embodiment shown in fig. 1 is a battery cell resistance energy consumption type equalization circuit, which includes a battery cell acquisition module 1, n battery cells 2 connected in series or in parallel, n equalization circuits 3, n being 5 to 15; the battery monomer acquisition module is electrically connected with the n battery monomers through the 1 st equalization circuit to the nth equalization circuit respectively; the structure of each equalizing circuit is the same, the nth equalizing circuit comprises a driving circuit 31 and a switching circuit 32, the switching circuit comprises a field effect transistor E2n, a field effect transistor E4n and an equalizing resistor RLn, the D pole of the field effect transistor E2n is electrically connected with the positive pole of the corresponding battery cell, the S pole of the field effect transistor E2n is electrically connected with one end of the equalizing resistor RLn, the other end of the equalizing resistor RLn is electrically connected with the D pole of the field effect transistor E4n, the S pole of the field effect transistor E4n is electrically connected with the negative pole of the corresponding battery cell, and the G poles of the field effect transistor E2n and the field effect transistor E4n are electrically connected with the driving circuit.
The driving circuit comprises a diode D1n, a resistor R1n, a resistor R2n, a resistor R7n, a resistor R3n, a resistor Rx1n, a resistor Rx2n, a resistor R5n, a resistor R8n, a resistor R9n, a field effect transistor E1n, a field effect transistor E3n and a field effect transistor E5 n.
The anode of the diode D1n is electrically connected to the cell collection module, the cathode of the diode D1n is electrically connected to one end of the resistor R1n, and the other end of the resistor R1n is electrically connected to one end of the resistor R2n, one end of the resistor R7n, the G pole of the fet E1n, and the G pole of the fet E3n, respectively.
The other end of the resistor R2n and the S pole of the field effect transistor E1n are both grounded; one end of the resistor R3n is electrically connected with the D pole of the field effect transistor E1n, and the other end of the resistor R3n is electrically connected with the G pole of the power switch tube E2n and the single battery collection module respectively.
The other end of the resistor R7n and the S pole of the field effect transistor E3n are both grounded, the D pole of the field effect transistor E3n and one end of the resistor Rx2n are electrically connected, the other end of the resistor Rx2n is respectively and electrically connected with one end of the resistor Rx1n and the G pole of the field effect transistor E5n, the other end of the resistor Rx1n and the D pole of the field effect transistor E5n are both connected with BAT +, the S pole of the field effect transistor E5n and one end of the resistor R9n are electrically connected, the other end of the resistor R9n is respectively and electrically connected with one end of the resistor R8n and the G pole of the field effect transistor E4 n.
The working process of the utility model is as follows:
when each single battery of the storage battery is charged and discharged, the driving circuit drives the switch circuit to be switched on or switched off, and the equalizing resistor eliminates the voltage difference of the adjacent single batteries, so that the voltage of each single battery is equalized;
when the output of the I/O port at D1n is at low level, E1n and E3n are in an off state due to the pull-down resistors of R2n and R7n, at this time, E5n is also in an off state due to the pull-up resistor of resistor Rx1n, and E4n is also in an off state due to the pull-down resistor of R8 n; e2n is also in the off state due to the presence of the pull-up resistor of R3 n;
therefore, the connection between the RLn and the single battery cell is ensured to be in a turn-off state, and the energy of the cell is not consumed;
when the output of the I/O port at D1n is at high level, E3n is turned on, the G pole of E5n is pulled low to low level, E5n is turned on, E4n obtains high level through a resistor R9n, and the conduction is turned on; e1n also gets a high conduction turn on; at this time, E1n pulls the G electrode of E2n low, so that E2n is in a conducting state, RLn is connected in parallel with the cell, and current is formed in RLn to consume the energy of the cell.
The utility model discloses when low-cost realization heavy current charge-discharge, each battery monomer voltage that makes the battery is balanced, has reduced because the balanced inefficacy that the PCB process problems of balanced drive MOS pipe lead to.
It should be understood that the present embodiment is only for illustrating the present invention and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (5)
1. A battery monomer resistance energy consumption type equalizing circuit is characterized by comprising a battery monomer acquisition module (1), n battery monomers (2) connected in series or in parallel, n equalizing circuits (3), wherein n is larger than 2; the battery monomer acquisition module is electrically connected with the n battery monomers through the 1 st equalization circuit to the nth equalization circuit respectively; the structure of each equalizing circuit is the same, the nth equalizing circuit comprises a driving circuit (31) and a switching circuit (32), the switching circuit comprises a field effect transistor E2n, a field effect transistor E4n and an equalizing resistor RLn, the D pole of the field effect transistor E2n is electrically connected with the positive pole of the corresponding battery cell, the S pole of the field effect transistor E2n is electrically connected with one end of the equalizing resistor RLn, the other end of the equalizing resistor RLn is electrically connected with the D pole of the field effect transistor E4n, the S pole of the field effect transistor E4n is electrically connected with the negative pole of the corresponding battery cell, and the G poles of the field effect transistor E2n and the field effect transistor E4n are electrically connected with the driving circuit.
2. The battery cell resistor energy consumption type equalizing circuit of claim 1, wherein the driving circuit comprises a diode D1n, a resistor R1n, a resistor R2n, a resistor R7n, a resistor R3n, a resistor Rx1n, a resistor Rx2n, a resistor R5n, a resistor R8n, a resistor R9n, a fet E1n, a fet E3n, and a fet E5 n.
3. The battery cell resistor energy consumption type equalizing circuit of claim 2, wherein an anode of the diode D1n is electrically connected to the battery cell collecting module, a cathode of the diode D1n is electrically connected to one end of the resistor R1n, and the other end of the resistor R1n is electrically connected to one end of the resistor R2n, one end of the resistor R7n, a G-pole of the fet E1n, and a G-pole of the fet E3n, respectively.
4. The cell resistor energy consumption type equalizing circuit of claim 3, wherein the other end of the resistor R2n and the S-pole of the fet E1n are both grounded; one end of the resistor R3n is electrically connected with the D pole of the field effect transistor E1n, and the other end of the resistor R3n is electrically connected with the G pole of the power switch tube E2n and the single battery collection module respectively.
5. The cell resistor energy consumption type equalizing circuit of claim 4, wherein the other end of the resistor R7n is electrically connected to the S pole of the FET E3n, the D pole of the FET E3n is electrically connected to one end of the resistor Rx2n, the other end of the resistor Rx2n is electrically connected to one end of the resistor Rx1n and the G pole of the FET E5n, the other end of the resistor Rx1n and the D pole of the FET E5n are electrically connected to BAT +, the S pole of the FET E5n is electrically connected to one end of the resistor R9n, the other end of the resistor R9n is electrically connected to one end of the resistor R8n and the G pole of the FET E4n, and the other end of the resistor R8n is electrically connected to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921020504.4U CN210224988U (en) | 2019-07-02 | 2019-07-02 | Battery monomer resistance energy consumption type equalizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921020504.4U CN210224988U (en) | 2019-07-02 | 2019-07-02 | Battery monomer resistance energy consumption type equalizing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210224988U true CN210224988U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921020504.4U Active CN210224988U (en) | 2019-07-02 | 2019-07-02 | Battery monomer resistance energy consumption type equalizing circuit |
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| Country | Link |
|---|---|
| CN (1) | CN210224988U (en) |
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2019
- 2019-07-02 CN CN201921020504.4U patent/CN210224988U/en active Active
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