CN204011564U - Based on single-pole double throw type switch, carry out the microbiological fuel cell group of protection automatically - Google Patents
Based on single-pole double throw type switch, carry out the microbiological fuel cell group of protection automatically Download PDFInfo
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- CN204011564U CN204011564U CN201420427194.9U CN201420427194U CN204011564U CN 204011564 U CN204011564 U CN 204011564U CN 201420427194 U CN201420427194 U CN 201420427194U CN 204011564 U CN204011564 U CN 204011564U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model provides a kind of and carries out the microbiological fuel cell group of protection automatically based on single-pole double throw type switch, and described microbiological fuel cell group is formed by n group microbiological fuel cell units in series, and n is greater than 1 natural number; And each is organized described microbiological fuel cell unit and is also parallel with a switching device; Wherein, described microbiological fuel cell unit is m microbiological fuel cell monomer in parallel, and m is natural number.Switching device adopts single-pole double throw type switch, can be effectively by antipole occurring or the microbiological fuel cell isolation of antipole will occurring, improve microbiological fuel cell group integral working, also extended the useful life of each microbiological fuel cell simultaneously.In addition, can also locate in time the microbiological fuel cell that antipole will occur, contribute to check as early as possible reason, fix a breakdown.
Description
Technical field
The utility model belongs to power technique fields, is specifically related to a kind of microbiological fuel cell group of carrying out automatic protection based on single-pole double throw type switch.
Background technology
Microbiological fuel cell is a kind of device that organic substance is converted into electric energy, as a kind of emerging technology, has obtained research and application at aspects such as new forms of energy, sewage disposal, water quality detections.Especially aspect sewage disposal, it is fuel that microbiological fuel cell can adopt biodegradable waste water, when producing electric energy, curbs environmental pollution, and realizes the recycling of refuse, promotes the coordinated development of economic, social and environment.Therefore, microbiological fuel cell provides a kind of effective new approaches for alleviating and solving energy and environment problem.
Single microbial fuel cell has the problems such as the little and power output of output voltage is lower, therefore, for the electric energy of microbiological fuel cell output is utilized effectively, a plurality of microbiological fuel cells need to be carried out to connection in series-parallel, form microbiological fuel cell group, the electric energy using to export enough loads.
But find in practical study and application, for the microbiological fuel cell group being formed by a plurality of microbiological fuel cell series connection, when operating current is larger, some battery in battery pack there will be reverse electrode phenomena, and the both positive and negative polarity polarity of microbiological fuel cell is reversed.In the case, the output voltage of whole battery pack reduces, and the microbiological fuel cell that polarity inversion occurs also easily damages, and has shortened the useful life of microbiological fuel cell.
Utility model content
The defect existing for prior art, the utility model provides a kind of and carries out the microbiological fuel cell group of protection automatically based on single-pole double throw type switch, in order to address the above problem.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of and carries out the microbiological fuel cell group of protection automatically based on single-pole double throw type switch, and described microbiological fuel cell group is formed by n group microbiological fuel cell units in series, and n is greater than 1 natural number; And each is organized described microbiological fuel cell unit and is also parallel with a switching device; Wherein, described microbiological fuel cell unit is m microbiological fuel cell monomer in parallel, and m is natural number;
Wherein, described switching device is single-pole double throw type switch; Described microbiological fuel cell group also comprises: voltage sampling circuit and controller;
The input of described voltage sampling circuit is connected with the two ends of microbiological fuel cell unit described in each respectively, for gathering respectively the terminal voltage of microbiological fuel cell unit described in each; The output of described voltage sampling circuit is connected with the input of described controller; The output of described controller is connected with the drive circuit of single-pole double throw type switch described in each respectively, by described drive circuit, changes the energising path of described single-pole double throw type switch.
Preferably, establishing n group microbiological fuel cell unit is expressed as by series connection sequencing: the 1st group of microbiological fuel cell unit, the 2nd group of microbiological fuel cell unit ... n organizes microbiological fuel cell unit; The negative pole of the positive pole of the 1st group of microbiological fuel cell unit and n group microbiological fuel cell unit is as the output of external circuit; The single-pole double throw type switch list that the single-pole double throw type switch list of the 1st group of microbiological fuel cell unit parallel connection is shown the 1st single-pole double throw type switch, the 2nd group of microbiological fuel cell unit parallel connection is shown the 2nd single-pole double throw type switch ... the single-pole double throw type switch list of n group microbiological fuel cell unit parallel connection is shown n single-pole double throw type switch;
: the 1st fixed contact of the 1st single-pole double throw type switch is connected with the positive pole of the 1st group of microbiological fuel cell unit, the 2nd fixed contact of the 1st single-pole double throw type switch is connected with the negative pole of the 1st group of microbiological fuel cell unit, and the moving contact of the 1st single-pole double throw type switch is connected with the positive pole of external loading;
The 1st fixed contact of j single-pole double throw type switch is connected with the positive pole of j group microbiological fuel cell unit, the 2nd fixed contact of j single-pole double throw type switch is connected with the negative pole of j group microbiological fuel cell unit, and the moving contact of j single-pole double throw type switch is connected with the negative pole of j-1 group microbiological fuel cell unit; Wherein, 1 < j < n, j is natural number;
The 1st fixed contact of n single-pole double throw type switch is connected with the positive pole of n group microbiological fuel cell unit, the 2nd fixed contact of n single-pole double throw type switch is connected with the negative pole of n group microbiological fuel cell unit, and the moving contact of n single-pole double throw type switch is connected with the negative pole of external loading;
For h group microbiological fuel cell unit, under normal circumstances, the moving contact of h single-pole double throw type switch and the 1st fixed contact conducting; The terminal voltage that collects h group microbiological fuel cell unit when described voltage sampling circuit is during lower than default minimum, controller passes through drive circuit, make moving contact and the 2nd fixed contact conducting of h single-pole double throw type switch, this h group microbiological fuel cell unit is bypassed.
Preferably, described single-pole double throw type switch is single-pole double throw type simulated switch or single-pole double throw type mechanical relay.
The microbiological fuel cell group of carrying out automatically protecting based on single-pole double throw type switch that the utility model provides has the following advantages:
What the utility model provided carries out the microbiological fuel cell group of protection automatically based on single-pole double throw type switch; can effectively the microbiological fuel cell isolation of antipole will will be there is; improve microbiological fuel cell group integral working, also extended the useful life of each microbiological fuel cell simultaneously.In addition, can also locate in time the microbiological fuel cell that antipole will occur, contribute to check as early as possible reason, fix a breakdown.
Accompanying drawing explanation
The circuit theory diagrams of the diode that Fig. 1 provides for the utility model during as switching device m=1;
The circuit theory diagrams of the diode that Fig. 2 provides for the utility model during as switching device m > 1;
Fig. 3 is that single-pole double throw type switch is as the circuit theory diagrams under switching device normal condition;
Fig. 4 is that single-pole double throw type switch is as switching device MFC
2circuit theory diagrams under malfunction.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
The utility model provides a kind of microbiological fuel cell group with automatic protection functions, and microbiological fuel cell group is formed by n group microbiological fuel cell units in series, and n is greater than 1 natural number; And each group microbiological fuel cell unit is also parallel with a switching device; Wherein, microbiological fuel cell unit is m microbiological fuel cell monomer in parallel, and m is natural number.
Every group of independent switching device in parallel of microbiological fuel cell unit difference, pass through switching device, realization by there is antipole or the microbiological fuel cell cell isolation of antipole will occur, reach to extend each microbiological fuel cell useful life, improve the object of microbiological fuel cell group integral working.Switching device can be selected diode or single-pole double throw type switch, introduces respectively below with regard to both of these case:
Embodiment mono-: switching device is diode
As shown in Figure 1, n group microbiological fuel cell units in series, and each group microbiological fuel cell unit is a microbiological fuel cell monomer, is expressed as MFC
1, MFC
2mFC
n; And, each microbiological fuel cell monomer diode, that is: a D respectively in parallel
1, D
2d
n.
As shown in Figure 2, n group microbiological fuel cell units in series, and each group microbiological fuel cell unit is m microbiological fuel cell monomer in parallel, for example, for the 1st group of microbiological fuel cell unit, it is by MFC
11, MFC
12mFC
1mm microbiological fuel cell monomer is formed in parallel altogether; Each group microbiological fuel cell unit diode, that is: a D respectively in parallel
1, D
2d
n.
No matter for Fig. 1 or Fig. 2, every group of microbiological fuel cell unit be an independent diode in parallel respectively, in normal use, and diode cut-off; When single microbial cell of fuel cell generation antipole, diode current flow, falls the microbiological fuel cell unit bypass that antipole occurs.For example,, for example, for Fig. 1, when any one microbiological fuel cell monomer generation antipole: MFC
2there is antipole, diode D
2conducting, by MFC
2bypass.For Fig. 2, when a certain group of microbiological fuel cell whole unit generation antipole, this unit bypass is fallen.
Because microbiological fuel cell output voltage is lower, diode should be selected forward voltage drop (V
f) lower Schottky diode, or the ideal diode being formed by metal-oxide-semiconductor and control circuit or other device, it has the advantages that forward voltage drop is minimum, reverse leakage current is minimum, thereby can realize in time, will the effect of the microbiological fuel cell unit bypass of antipole occur.
The present embodiment switching device adopts diode, has circuit advantage simple, with low cost, effectively protects battery in the time of can working as microbiological fuel cell generation antipole.But before microbiological fuel cell generation antipole, the electric property of single battery is variation, and output voltage sharply declines, now if in advance by battery isolation, by more effective protection battery.Meanwhile, if navigate to the battery of degradation, will contribute to check as early as possible reason, fix a breakdown.
Embodiment bis-: switching device is single-pole double throw type switch
Embodiment mono-adopts diode as switching device, only has when some microbiological fuel cells unit reverse electrode phenomena has occurred, and this microbiological fuel cell unit bypass can be fallen.But; the microbiological fuel cell unit that reverse electrode phenomena has occurred, its electric property is variation, therefore; the microbiological fuel cell unit bypass that reverse electrode phenomena occurs is fallen, still have the limited deficiency of this microbiological fuel cell cell protection dynamics.
Based on this, it is the circuit of single-pole double throw type switch that the present embodiment provides a kind of switching device, single-pole double throw type switch in parallel on single microbial cell of fuel cell, simultaneously, each two ends of organizing microbiological fuel cell unit are connected to voltage sampling circuit, and the output of voltage sampling circuit is connected with the input of controller; The output of controller is connected with the drive circuit of each single-pole double throw type switch respectively, by drive circuit, changes the energising path of single-pole double throw type switch.For example; when the terminal voltage of certain microbiological fuel cell unit is lower than set point during as 0.3V; show that reverse electrode phenomena will occur in this microbiological fuel cell unit; therefore; controller drives single-pole double throw type switch; by this microbiological fuel cell unit bypass, reach in advance by microbiological fuel cell cell isolation the effect of more effective protection battery pack.Single-pole double throw type switch can adopt analog switch or the mechanical relay of low drive current, low on-resistance.
Concrete, switching device is single-pole double throw type switch; Microbiological fuel cell group also comprises: voltage sampling circuit and controller;
The input of voltage sampling circuit is connected with the two ends of each microbiological fuel cell unit respectively, for gathering respectively the terminal voltage of each microbiological fuel cell unit; The output of voltage sampling circuit is connected with the input of controller; The output of controller is connected with the drive circuit of each single-pole double throw type switch respectively, by drive circuit, changes the energising path of single-pole double throw type switch.
If n group microbiological fuel cell unit is expressed as by series connection sequencing: the 1st group of microbiological fuel cell unit, the 2nd group of microbiological fuel cell unit ... n organizes microbiological fuel cell unit; The negative pole of the positive pole of the 1st group of microbiological fuel cell unit and n group microbiological fuel cell unit is as the output of external circuit; The single-pole double throw type switch list that the single-pole double throw type switch list of the 1st group of microbiological fuel cell unit parallel connection is shown the 1st single-pole double throw type switch, the 2nd group of microbiological fuel cell unit parallel connection is shown the 2nd single-pole double throw type switch ... the single-pole double throw type switch list of n group microbiological fuel cell unit parallel connection is shown n single-pole double throw type switch;
: the 1st fixed contact of the 1st single-pole double throw type switch is connected with the positive pole of the 1st group of microbiological fuel cell unit, the 2nd fixed contact of the 1st single-pole double throw type switch is connected with the negative pole of the 1st group of microbiological fuel cell unit, and the moving contact of the 1st single-pole double throw type switch is connected with the positive pole of external loading;
The 1st fixed contact of j single-pole double throw type switch is connected with the positive pole of j group microbiological fuel cell unit, the 2nd fixed contact of j single-pole double throw type switch is connected with the negative pole of j group microbiological fuel cell unit, and the moving contact of j single-pole double throw type switch is connected with the negative pole of j-1 group microbiological fuel cell unit; Wherein, 1 < j < n, j is natural number;
The 1st fixed contact of n single-pole double throw type switch is connected with the positive pole of n group microbiological fuel cell unit, the 2nd fixed contact of n single-pole double throw type switch is connected with the negative pole of n group microbiological fuel cell unit, and the moving contact of n single-pole double throw type switch is connected with the negative pole of external loading;
For h group microbiological fuel cell unit, under normal circumstances, the moving contact of h single-pole double throw type switch and the 1st fixed contact conducting; The terminal voltage that collects h group microbiological fuel cell unit when voltage sampling circuit is during lower than default minimum; controller passes through drive circuit; make moving contact and the 2nd fixed contact conducting of h single-pole double throw type switch; this h group microbiological fuel cell unit is bypassed, thereby has protected this group microbiological fuel cell unit.
With n=3, m=1 is example, and as shown in Figure 3, the 1st group of microbiological fuel cell unit, the 2nd group of microbiological fuel cell unit and the 3rd group of microbiological fuel cell units in series, be expressed as: MFC
1, MFC
2and MFC
3; MFC
1associated single-pole double throw type switch list is shown SW
1, MFC
2associated single-pole double throw type switch list is shown SW
2, MFC
3associated single-pole double throw type switch list is shown SW
3; For SW
3, a1 is moving contact; A2 is the 1st fixed contact; A3 is the 2nd fixed contact; Circuit shown in Fig. 3 is normal operating conditions, now, the moving contact of each switch all with the 1st fixed contact conducting; When voltage sampling circuit collects MFC
2terminal voltage during lower than default minimum, controller, by drive circuit, makes SW
2moving contact and the 2nd fixed contact conducting, thereby by MFC
2bypass, become circuit state shown in Fig. 4.
In addition, in the present embodiment, controller can also connect display, shows the microbiological fuel cell unit marks that is about to occur reverse electrode phenomena by display, thereby reaches the object of timely location fail battery, contributes to check as early as possible reason, fixes a breakdown.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection range of the present utility model.
Claims (3)
1. based on single-pole double throw type switch, carry out a microbiological fuel cell group for protection automatically, it is characterized in that, described microbiological fuel cell group is formed by n group microbiological fuel cell units in series, and n is greater than 1 natural number; And each is organized described microbiological fuel cell unit and is also parallel with a switching device; Wherein, described microbiological fuel cell unit is m microbiological fuel cell monomer in parallel, and m is natural number;
Wherein, described switching device is single-pole double throw type switch; Described microbiological fuel cell group also comprises: voltage sampling circuit and controller;
The input of described voltage sampling circuit is connected with the two ends of microbiological fuel cell unit described in each respectively, for gathering respectively the terminal voltage of microbiological fuel cell unit described in each; The output of described voltage sampling circuit is connected with the input of described controller; The output of described controller is connected with the drive circuit of single-pole double throw type switch described in each respectively, by described drive circuit, changes the energising path of described single-pole double throw type switch.
2. according to claim 1ly based on single-pole double throw type switch, carry out the automatically microbiological fuel cell group of protection, it is characterized in that, establish n group microbiological fuel cell unit and be expressed as by series connection sequencing: the 1st group of microbiological fuel cell unit, the 2nd group of microbiological fuel cell unit ... n organizes microbiological fuel cell unit; The negative pole of the positive pole of the 1st group of microbiological fuel cell unit and n group microbiological fuel cell unit is as the output of external circuit; The single-pole double throw type switch list that the single-pole double throw type switch list of the 1st group of microbiological fuel cell unit parallel connection is shown the 1st single-pole double throw type switch, the 2nd group of microbiological fuel cell unit parallel connection is shown the 2nd single-pole double throw type switch ... the single-pole double throw type switch list of n group microbiological fuel cell unit parallel connection is shown n single-pole double throw type switch;
: the 1st fixed contact of the 1st single-pole double throw type switch is connected with the positive pole of the 1st group of microbiological fuel cell unit, the 2nd fixed contact of the 1st single-pole double throw type switch is connected with the negative pole of the 1st group of microbiological fuel cell unit, and the moving contact of the 1st single-pole double throw type switch is connected with the positive pole of external loading;
The 1st fixed contact of j single-pole double throw type switch is connected with the positive pole of j group microbiological fuel cell unit, the 2nd fixed contact of j single-pole double throw type switch is connected with the negative pole of j group microbiological fuel cell unit, and the moving contact of j single-pole double throw type switch is connected with the negative pole of j-1 group microbiological fuel cell unit; Wherein, 1 < j < n, j is natural number;
The 1st fixed contact of n single-pole double throw type switch is connected with the positive pole of n group microbiological fuel cell unit, the 2nd fixed contact of n single-pole double throw type switch is connected with the negative pole of n group microbiological fuel cell unit, and the moving contact of n single-pole double throw type switch is connected with the negative pole of external loading;
For h group microbiological fuel cell unit, under normal circumstances, the moving contact of h single-pole double throw type switch and the 1st fixed contact conducting; The terminal voltage that collects h group microbiological fuel cell unit when described voltage sampling circuit is during lower than default minimum, controller passes through drive circuit, make moving contact and the 2nd fixed contact conducting of h single-pole double throw type switch, this h group microbiological fuel cell unit is bypassed.
3. microbiological fuel cell group of carrying out automatic protection based on single-pole double throw type switch according to claim 1, is characterized in that, described single-pole double throw type switch is single-pole double throw type simulated switch or single-pole double throw type mechanical relay.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427194.9U CN204011564U (en) | 2014-07-30 | 2014-07-30 | Based on single-pole double throw type switch, carry out the microbiological fuel cell group of protection automatically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427194.9U CN204011564U (en) | 2014-07-30 | 2014-07-30 | Based on single-pole double throw type switch, carry out the microbiological fuel cell group of protection automatically |
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| CN204011564U true CN204011564U (en) | 2014-12-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112687919A (en) * | 2020-12-11 | 2021-04-20 | 浙江锋源氢能科技有限公司 | Fuel cell device, control method thereof and power supply system |
| CN113782924A (en) * | 2021-09-14 | 2021-12-10 | 傲普(上海)新能源有限公司 | PACK isolation circuit for short-board battery cell of energy storage power station and power-on and power-off method |
-
2014
- 2014-07-30 CN CN201420427194.9U patent/CN204011564U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112687919A (en) * | 2020-12-11 | 2021-04-20 | 浙江锋源氢能科技有限公司 | Fuel cell device, control method thereof and power supply system |
| CN113782924A (en) * | 2021-09-14 | 2021-12-10 | 傲普(上海)新能源有限公司 | PACK isolation circuit for short-board battery cell of energy storage power station and power-on and power-off method |
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Address after: 100101 Beijing city Chaoyang District Anxiang, No. 11 B block 2 layer Patentee after: CHINA SCIENCE MAPUNIVERSE TCHNDOGY CO., LTD. Address before: 100101 Beijing city Chaoyang District Anxiang, No. 11 B block 2 layer Patentee before: MAPUNI Co., Ltd. |