Disclosure of Invention
The invention aims to solve the technical problem of providing an integrated mobile power supply and solve the problem of accidents caused by surge current.
In order to solve the technical problems, the technical scheme of the invention is as follows: an integrated mobile power supply comprises a plurality of storage battery monomers, a capacitor, a de-energizing module, a power supply positive electrode and a power supply negative electrode which are connected with a power utilization unit, and a charging positive electrode and a charging negative electrode which are connected with a rectifying unit, wherein the battery positive electrodes of the storage battery monomers are connected with the power supply positive electrode and the charging positive electrode, the battery negative electrodes of the storage battery monomers are connected with the power supply negative electrode and the charging negative electrode, the capacitor is respectively and electrically connected with the charging positive electrode and the charging negative electrode after being connected in series with the de-energizing module so as to eliminate surge current in a power grid, the de-energizing module comprises a first zinc oxide resistor, a first silicon carbide resistor, a second zinc oxide resistor, a second silicon carbide resistor, a third zinc oxide resistor and a third silicon carbide resistor, the resistance values of the first zinc oxide resistor, the first silicon carbide resistor, the second zinc oxide resistor, the second silicon carbide resistor, the third zinc oxide resistor and the third silicon carbide resistor are all equal, wherein the first zinc oxide resistor is connected with the first silicon carbide resistor in series, the second zinc oxide resistor is connected with the third zinc oxide resistor in series, the second silicon carbide resistor is connected with the third silicon carbide resistor in series and then connected in parallel to form an energy removal module, a first diode is arranged between the battery anode and the power supply anode and/or a second diode is arranged between the battery cathode and the power supply anode so as to prevent the generation of surge current between a plurality of battery monomers, a third diode is arranged between the battery anode and the charging anode and/or a fourth diode is arranged between the battery cathode and the charging anode so as to prevent the generation of surge current between a plurality of battery monomers, and a fuse is arranged between the battery anode and the charging anode and/or a fuse is arranged between the battery cathode and the charging cathode so as to timely power off the short-circuited storage battery monomer.
As a preferred embodiment of the present invention, the first zinc oxide resistor, the first silicon carbide resistor, the second zinc oxide resistor, the second silicon carbide resistor, the third zinc oxide resistor, and the third silicon carbide resistor are each formed in a cylindrical shape so as to be filled in the middle of the plurality of battery cells.
As a preferable mode of the invention, the first zinc oxide resistor, the first silicon carbide resistor, the second zinc oxide resistor, the second silicon carbide resistor, the third zinc oxide resistor and the third silicon carbide resistor are all arranged in a disc shape so as to be placed on the outer side of the mobile power supply for heat dissipation.
As a preferred embodiment of the present invention, the positive terminal of the first diode is connected to the positive electrode of the battery, and the negative terminal of the first diode is connected to the positive electrode of the power supply.
As a preferred embodiment of the present invention, the negative terminal of the second diode is connected to the negative electrode of the battery, and the positive terminal of the first diode is connected to the negative electrode of the power supply.
As a preferred embodiment of the present invention, the positive terminal of the third diode is connected to the charging positive electrode, and the negative terminal of the third diode is connected to the battery positive electrode.
As a preferred embodiment of the present invention, the positive terminal of the fourth diode is connected to the negative electrode of the battery, and the negative terminal of the fourth diode is connected to the negative electrode of the charge.
As a preferred embodiment of the invention, the fuse is connected in series with the third diode and/or the fourth diode.
The beneficial effect of adopting this technical scheme is: through setting up the removal of energy module in integrated portable power source is inside, reduce the harm of surge current when switch-on suddenly or outage, use through zinc oxide resistance and carborundum resistance combination, make removal of energy module have both comprehensive properties, ensure portable power source safety in utilization, also can protect the battery to avoid the impact of heavy current when charging simultaneously, avoid taking place the accident of burning, through setting up the electric capacity, make charging current's change guide eliminate in removing the energy module, through separating charging circuit and power supply circuit, make charging circuit and power supply circuit all can set up the diode and restrict surge current between the battery monomer, the cause of the emergence accident between a plurality of battery monomers has been solved.
And the third diode and/or the fourth diode are/is arranged in the charging circuit to prevent the plurality of storage battery monomers from generating the surge current, so that the surge current is prevented from oscillating back and forth among the plurality of storage battery monomers, and accidents caused by the fact that the battery generates heat in the surge current oscillation are avoided.
The first diode and/or the second diode are/is arranged in the power supply circuit to prevent the plurality of storage battery monomers from generating the surge current, so that the surge current is prevented from oscillating back and forth among the plurality of storage battery monomers, and accidents caused by the fact that the battery generates heat in the surge current oscillation are avoided.
The fuse is arranged in the charging circuit to prevent large current generated when the storage battery cell is short-circuited, so that the influence of the short circuit of the storage battery cell on other storage battery cells is avoided.
Detailed Description
For the purpose of further illustrating the various embodiments, the present invention provides the accompanying drawings, which are a part of the disclosure of the present invention, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present invention, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to the drawings, an integrated mobile power supply comprises a plurality of storage battery monomers 1, a capacitor 9, a fuse 19, a de-energizing module, a power supply anode 15 and a power supply cathode 16 which are used for being connected with a power utilization unit 2, a charging anode 17 and a charging cathode 18 which are used for being connected with a rectifying unit 10, wherein the battery anodes of the plurality of storage battery monomers 1 are connected with the power supply anode 15 and the charging anode 17, the battery cathodes of the plurality of storage battery monomers 1 are connected with the power supply cathode 16 and the charging cathode 18, the capacitor 9 is respectively and electrically connected with the charging anode 17 and the charging cathode 18 after being connected with the de-energizing module in series so as to eliminate the surge current in a power grid, the de-energizing module comprises a first silicon carbide resistor 3, a first silicon carbide resistor 4, a second zinc oxide resistor 5, a second silicon carbide resistor 6, a third zinc oxide resistor 7 and a third silicon carbide resistor 8, the resistance values of the first zinc oxide resistor 3, the first silicon carbide resistor 4, the second zinc oxide resistor 5, the second silicon carbide resistor 6, the third zinc oxide resistor 7 and the third silicon carbide resistor 8 are all equal, wherein after being connected with the second silicon carbide resistor 4 in series, the second silicon carbide resistor 7 and the third silicon carbide resistor 8 are respectively, the series connection between the first silicon carbide resistor 4 and the second silicon carbide resistor 11 is arranged to prevent the surge current from being connected with the power supply anode 11, a third diode 13 is arranged between the battery anode and the charging anode 17 and/or a fourth diode 14 is arranged between the battery cathode and the charging cathode 18 so as to prevent the generation of surge current between a plurality of battery cells 1. The power supply positive electrode 15 and the power supply negative electrode 16 are electrically connected with the power utilization unit 2, the charging positive electrode 17 and the charging negative electrode 18 are electrically connected with the rectifying unit 10, and a fuse is arranged between the battery positive electrode and the charging positive electrode 17 and/or a fuse 19 is arranged between the battery negative electrode and the charging negative electrode 18 so as to timely cut off the power of the short-circuited storage battery unit 1.
Preferably, the first zinc oxide resistor 3, the first silicon carbide resistor 7, the second zinc oxide resistor 5, the second silicon carbide resistor 6, the third zinc oxide resistor 7, and the third silicon carbide resistor 8 are all arranged in a cylindrical shape so as to be filled in the middle of the plurality of battery cells 1.
Preferably, the first zinc oxide resistor 3, the first silicon carbide resistor 7, the second zinc oxide resistor 5, the second silicon carbide resistor 6, the third zinc oxide resistor 7 and the third silicon carbide resistor 8 are arranged in a disc shape so as to be placed on the outer side of the mobile power supply for heat dissipation.
Preferably, the positive terminal of the first diode 11 is connected to the battery positive electrode, and the negative terminal of the first diode 11 is connected to the power supply positive electrode 15.
Preferably, the negative terminal of the second diode 12 is connected to the battery cathode and the positive terminal of the first diode 12 is connected to the supply cathode 16.
Preferably, the positive terminal of the third diode 13 is connected to the charging positive electrode 17, and the negative terminal of the third diode 13 is connected to the battery positive electrode.
Preferably, the positive terminal of the fourth diode 18 is connected to the battery cathode, and the negative terminal of the fourth diode 18 is connected to the charge cathode 18.
According to the invention, the energy removing module is arranged in the integrated mobile power supply, so that the damage of surge current when the mobile power supply is suddenly connected or disconnected is reduced, the energy removing module has the comprehensive performance of the zinc oxide resistor and the silicon carbide resistor, the use safety of the mobile power supply is ensured, meanwhile, the battery can be protected from the impact of large current during charging, the accident of burning is avoided, and the change of charging current is led into the energy removing module to be eliminated by arranging the capacitor 9; by separating the charging circuit from the power supply circuit, the charging circuit and the power supply circuit can be provided with diodes to limit the surge current between the battery cells, thereby solving the problem of accidents between a plurality of storage battery cells 1. The capacitor 9 has the function of blocking direct current.
The third diode 13 and/or the fourth diode 14 are/is arranged in the charging circuit to prevent the plurality of battery cells 1 from generating the surge current, prevent the surge current from oscillating back and forth among the plurality of battery cells 1, and avoid accidents caused by the oscillation and heating of the battery at the surge current.
The first diode 11 and/or the second diode 12 are/is arranged in the power supply circuit to prevent the plurality of battery cells 1 from generating the surge current, prevent the surge current from oscillating back and forth among the plurality of battery cells 1, and avoid accidents caused by the oscillation and heating of the battery at the surge current.
Because the zinc oxide resistor has very good nonlinear volt-ampere characteristic, only a few hundred microamps of current passes through under normal working voltage, the zinc oxide resistor is convenient to design into a gapless structure, and the zinc oxide resistor has the characteristics of small size, light weight and good protection performance. When overvoltage invades, the current flowing through the valve plate rapidly increases, the amplitude of the overvoltage is limited, the energy of the overvoltage is released, and the zinc oxide valve plate is restored to a high-resistance state, so that the power system works normally. And the silicon carbide resistance is more complex with respect to temperature. The temperature rise resistance decreases at lower temperatures, and the resistance begins to increase gradually at about 1500 ℃ and approaches the resistance at normal temperature at 2600 ℃, after which the resistance tends to increase again with increasing temperature. The silicon carbide resistor is physically synthesized, the over-current damage is not breakdown, so that the silicon carbide resistor is cracked, the product parameters are stable, the product is not easy to age, the maintenance is free, the volt-ampere curve is soft, the parallel effect of a plurality of silicon carbide is good, the volume is small, and the silicon carbide resistor is superior to the linear zinc oxide resistor. These are all hundred degrees. The energy removal module integrates volt-ampere characteristics of two resistors, the zinc oxide resistor has obvious effect on surge current with short time, such as a lightning rod, and the silicon carbide resistor has obvious effect on surge current with long time, and the two resistors are integrated for use, so that the energy removal module 2 has good comprehensive performance.
In practical situations, when the voltage difference between the positive electrode and the negative electrode of the battery cell 1 is 6.0 volts, a voltage difference between one battery cell 1 and the other battery cell 1, for example, 0.2 volts, is formed, then the surge current oscillates between the two, the voltage difference borne by the energy removal module is 6.0 volts, and then the surge current oscillates between the energy removal module and the battery cell 1.
When the charging battery is charged, the motor in operation is affected due to the disconnection of other electric components on the circuit, a plurality of coils are arranged in the motor, and due to the sudden change of current, the coils generate instantaneous high current which impacts the charging battery in charging, the battery burning can be possibly caused, and after the energy removing module is arranged between the charging positive electrode 17 and the charging negative electrode 18, the energy removing module absorbs the part of oscillation energy.
In fig. 1, the broken line is a power supply circuit, the solid line is a charging circuit, and the rectifying unit 10 is connected to a voltage adapter, that is, a transformer.
The invention has the following advantages:
1. By arranging the energy removal module, the integrated mobile power supply is prevented from being impacted by large current in the power grid during charging, so that the combustion accident of the battery is avoided, and the instantaneous large current in the power grid can be effectively absorbed;
2. By arranging the fuse 19 in the charging circuit, the charging circuit of the battery cell 1 can be timely disconnected when the battery cell 1 is suddenly short-circuited, so that the safety of the whole battery is ensured;
3. Through the arrangement of the capacitor 9, the capacitor 9 can absorb surge energy when current changes, and prevent direct current from passing when current does not change, so that the energy removal module can absorb surge current of the whole power grid when the battery is charged, and also can absorb surge current when the battery is suddenly disconnected when the battery is used;
4. the third diode 13 and/or the fourth diode 14 are/is arranged in the charging circuit to prevent the generation of the surge current among the plurality of battery cells 1, prevent the surge current from oscillating back and forth among the plurality of battery cells 1 and avoid accidents caused by the oscillation and heating of the battery in the surge current;
5. The first diode 11 and/or the second diode 12 are/is arranged in the power supply circuit to prevent the generation of the surge current among the plurality of battery cells 1, prevent the surge current from oscillating back and forth among the plurality of battery cells 1 and avoid accidents caused by the oscillation and heating of the battery in the surge current;
6. By separating the charging circuit from the power supply circuit, the charging circuit and the power supply circuit can be provided with diodes to limit the surge current between the storage battery cells 1, so that the cause of accidents between a plurality of storage battery cells 1 is solved.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.