Summary of the invention
The purpose of this utility model provides a kind of environmental protection, inexpensive and easy-to-install automotive electric system system Doubling power device.Its product structure rationally, good looking appearance, feasible process, be suitable for mass production.After this product and plumbic acid start battery and be installed in parallel, can effectively prolong plumbic acid and start battery useful life more than 1 times, and can ensure that automobile starts smoothly in-40 ℃~+ 70 ℃ environment.
To achieve these goals, the utility model adopts following technical scheme:
A kind of automotive electric system system Doubling power device is made up of the shell body of waterproof sealing and built-in functional unit; Described built-in functional unit comprises the capacitance energy storage module management circuit of the connection of at least one group of capacitance energy storage module that is connected in series mutually and correspondence, the corresponding respectively both positive and negative polarity that connects automobile plumbic acid startup battery of the both positive and negative polarity of capacitance energy storage module management circuit input end.
It is 0-18.9V that described capacitance energy storage module is selected electric pressure for use.
Described capacitance energy storage module is selected 1-7 the energy-storage module of being made up of electric double layer type ultracapacitor or fake capacitance ultracapacitor for use.
The one-way ventilating valve is set on the shell body of waterproof sealing.
The utility model has the advantages that:
1, simple installation directly is parallel to automobile plumbic acid startup battery plus-negative plate and gets final product;
2, product itself has extra long life, and is with the same life-span of automobile, non-maintaining;
3, with after automobile plumbic acid startup battery is in parallel prolong the startup battery life at double, reduce the automobile plumbic acid and start battery use total amount, help environmental protection;
4, with after automobile plumbic acid startup battery is in parallel improved the vehicle low-temperature startup performance;
5, technology is simple, is convenient to operation, is suitable for large-scale production;
6, shock-resistant, vibrations and water drench, and is safe in utilization;
7, the own environmental protection of product, heavy metal such as not leaded, mercury, cadmium.
Embodiment
As shown in Figure 1, the utility model automotive electric system system Doubling power device is made up of with built-in functional unit the shell body 1 of waterproof sealing; Described built-in functional unit comprises the capacitance energy storage module management circuit 3 of at least one group of capacitance energy storage module 2 that is connected in series mutually and corresponding electric connection, the corresponding respectively both positive and negative polarity that connects automobile plumbic acid startup battery of the both positive and negative polarity lead-out wire 4,5 of capacitance energy storage module management circuit output end.
Described capacitance energy storage module upper voltage limit is 18.9V, and lower voltage limit is 0V, possesses the characteristic of transient large current discharge and large current charge.
Described capacitance energy storage module is different from electrochemical cell, realize discharging and recharging by electrochemical reaction, chemical substance in the charge and discharge process in the module does not participate in electrochemical reaction, has characteristics such as charging interval weak point, long service life, good temp characteristic, energy savings and environmental protection.It is a kind of electrochemical element, but chemical reaction does not take place in the process of its energy storage, and this thermal energy storage process is reversible, can repeated charge hundreds thousand of times.
In the utility model design, described capacitance energy storage module can be selected 1-7 the energy-storage module of being made up of electric double layer type super capacitor or fake capacitance super capacitor for use.
The electrode material of described electric double layer type ultracapacitor is the absorbent charcoal material or activated carbon fiber moulding material, the carbon silica aerogel electrode material that adopt high-specific surface area, the carbon nanotube electrode material is made has bigger capacitance and higher power density; Double electric layer capacitor can directly charge under non-loaded resistance situation, if the situation of overvoltage charging, double electric layer capacitor will be opened a way and unlikely damage device, simultaneously, double electric layer capacitor is compared with rechargeable battery, can carry out not current-limiting charge, and charging times can reach 10
6More than inferior.
Described fake capacitance type ultracapacitor positive electrode is to adopt metal oxide electrode material and polymer electrode material to make, negative material by Preparation of Activated Carbon, have very high energy density.
Two kinds of above-mentioned super capacitors all can weld, thereby do not exist as problems such as battery contact are insecure.
The utility model automotive electric system system Doubling power device adopt possess good property at high and low temperature, the shell body 1 of waterproof sealing that waterproof is drenched, and the one-way ventilating valve should be set thereon is good.
During application, the both positive and negative polarity lead-out wire of the Doubling power device of directly automotive electric system being united is connected to the automobile plumbic acid respectively and starts on the battery plus-negative plate, does not need to change the original circuit of automobile.
Fig. 2 shows the electrical schematic diagram of automotive electric system of the present utility model system Doubling power device capacitance energy storage module management circuit, and wherein: A is the pressure limiting diverter module on the management circuit; C is super capacitor (electric double layer type or fake capacitance) monomer; It is at the two ends of each super capacitor pressure limiting diverter module in parallel.The incoming end V of this circuit
In+,V
In-is used forExternal power supply; Its output V
Out+,V
Out-(the both positive and negative polarity lead-out wire 4,5 shown in Fig. 1) can directly be received the automobile plumbic acid and start on the battery.
Described capacitance energy storage module management circuit 3 is management circuits of capacitance energy storage module, prevent that the charging circuit overtension from damaging the capacitance energy storage module, when being connected in parallel on the automobile plumbic acid for a long time, automotive electric system system Doubling power device starts when using on the battery, electric capacity in the capacitance energy storage module adopts discharged in series, the serial connection charge form, because the internal resistance difference in the manufacture process of electric capacity, the voltage that can cause each electric capacity two ends in the serial connection charge circuit is not consistent, at this moment the major function of capacitance energy storage module management circuit 3 is pressure limiting shuntings, all the overvoltage charging phenomenon can not occur to protect each electric capacity; When automotive electric system's system Doubling power device is used to the automobile rescue by external power charging; 3 forms that automatically occupation mode of electric capacity switched to discharged in series, charged in parallel of capacitance energy storage module management circuit; can guarantee the charging voltage unanimity of each electric capacity like this, effectively protect the safe in utilization of capacitance energy storage module.
Fig. 3 shows the last pressure limiting diverter module electricity principle of capacitance energy storage module management circuit, wherein:
VT1 is a testing circuit, output high level when the electric capacity both end voltage surpasses setting voltage, and the driving switch plumber does;
V1~V2 switching tube, pipe conducting when its control voltage reaches conducting voltage;
R1 resistance is the pull-up resistor of VT1;
R2~R3 is the build-out resistor of V1~V2, to reduce inconsistent the influencing each other of being brought of each switching tube conducting voltage;
R4~R7 is a current-limiting resistance, limits the electric current that it flows through when V1~V2 conducting;
Above-mentioned resistance all adopts high-power resistance.
Its operation principle is: the voltage during the ultracapacitor charging between the capacitor positive and negative polarities is in continuous rising, the output output low level of VT1 when the voltage at the electric capacity two ends does not reach the threshold voltage of VT1, the V1~V2 all not conducting voltage that is the high-impedance state capacitor continues to raise.Reach when the voltage at capacitor two ends that the output of VT1 has low level to become high level behind the threshold voltage of VT1, the equal conducting work of V1~V2 this moment has been equivalent in the two ends parallel connection of capacitor positive and negative electrode shunt resistance, make the charging current of capacitor in parallel is with it shunted, so the voltage on the capacitor will reduce the speed of rising,, charging current just can not rise if equaling the voltage of the by-pass current capacitor of balancing circuitry.Because the output that VT1 has Schmidt's characteristic VT1 when the electric capacity both end voltage drops to the shutoff voltage of VT1 can become low level V1~V2 again and all turn-off the shunting that stops the charging current of capacitor; this course of work is the highest threshold voltage that can not surpass VT1 of the voltage that just can make the capacitor two ends like this that carries out repeatedly; select the appropriate threshold magnitude of voltage, can effectively protect the safety of ultracapacitor under the serial connection charge operating state.
It is chemical power source that well-known plumbic acid starts battery, rely on redox reaction to realize that electric energy is stored and release, the storage of its electric energy and rate of release are instantaneous power, temperature influence is obvious, its battery life is relevant with the electro-chemical activity of the active material of the interior participation of battery electrochemical reaction, for overcoming above-mentioned contradiction, the utility model automotive electric system system Doubling power device adopts physics energy storage mode, electric charge directly is stored in the capacitance energy storage module with physical form, the electrochemistry reflection does not take place in the chemical substance in the capacitance energy storage module in the storage of electric energy and dispose procedure, therefore automotive electric system's system Doubling power device has possessed instantaneous large-current charging and transient large current discharge and good low-temperature characteristics, starting in the battery use in parallel with the automobile plumbic acid, provide the overwhelming majority to start electric energy in automobile starting moment by automotive electric system's system Doubling power device, the automobile plumbic acid starts battery and only exports less electrical energy not even with the output electric energy, automobile plumbic acid startup battery life is prolonged at double in this scheme, and low-temperature characteristics is greatly improved.