CN104917217A - Three-phase charging circuit and air conditioner - Google Patents
Three-phase charging circuit and air conditioner Download PDFInfo
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- CN104917217A CN104917217A CN201410093752.7A CN201410093752A CN104917217A CN 104917217 A CN104917217 A CN 104917217A CN 201410093752 A CN201410093752 A CN 201410093752A CN 104917217 A CN104917217 A CN 104917217A
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Abstract
The invention discloses a three-phase charging circuit and an air conditioner. The three-phase charging circuit comprises a relay circuit and an electrolytic capacitor voltage sharing circuit. The relay circuit is used for inputting a first voltage of a rectifier bridge. The electrolytic capacitor voltage sharing circuit is connected with the relay circuit, and used for storing the energy of the first voltage. The electrolytic capacitor voltage sharing circuit includes an electrolytic capacitor circuit and a control circuit. The electrolytic capacitor circuit includes a first capacitor and a second capacitor. The control circuit is connected with the electrolytic capacitor circuit, and used for controlling a voltage dividing circuit to divide voltage for the first capacitor and the second capacitor according to the ratio of a second voltage of the second capacitor to the first voltage. By adopting the three-phase charging circuit provided by the invention, the problems of high interior temperature of an electric box, and large power consumption of the conventional three-phase charging circuit of the air conditioner are solved, and electrolytic capacitor voltage sharing is achieved in a low-consumption and low-heat manner.
Description
Technical field
The present invention relates to air-conditioning charging field, in particular to a kind of three-phase electricity charging circuit and air conditioner.
Background technology
The structure of the three-phase electricity charging circuit in current business air conditioner is basic as Fig. 1: available circuit is made up of two parts, the relay circuit be made up of relay K 2 and resistance R15, its repeat circuit 1,2 pin is control end, 3,4 pins are can the pin of attraction circuit, P+ is front end rectifier bridge output cathode, P-is the negative pole of rectifier bridge, and R15 is the current-limiting resistance in moment of powering on; C3 and C4 forms electrochemical capacitor series circuit, because electrochemical capacitor technological problems cannot accomplish high pressure, therefore in three-phase circuit, all use electrolysis capacitances in series to make for improving withstand voltage, resistance R16 and R17 is respectively the grading resistor of C3, C4, because electrochemical capacitor individual difference is comparatively large, must use when series connection uses and all press measure (resistance R16 and R17) to ensure that the voltage on two electric capacity is equal.
Following several defect is had in such scheme:
1. the withstand voltage between relay contact is limited, general mark exchanges 250V, use voltage more the high life shorter, but in the system that three-phase electricity is powered, the withstand voltage that powering on needs between moment contact 3,4 is 540V, although power at every turn, the moment is all very short, and the words of Long-Time Service relay can reduce the useful life of relay.
2. because electrochemical capacitor individual difference is larger, grading resistor will be used when series connection uses, and grading resistor value is generally tens K Europe, the words that value is too large do not have all presses effect, and this grading resistor be connected to 540V withstand voltage between, the power loss of such grading resistor probably has a few about W to 10W, and these power consumptions produce very high temperature rise, in the business air conditioner of three phase supply, this is a main pyrotoxin, causes electrical appliance kit internal temperature rise higher.
High for the electrical appliance kit internal temperature of air-conditioning three-phase electricity charging circuit in prior art, the problem that loss is large, not yet proposes effective solution at present.
Summary of the invention
High for the electrical appliance kit internal temperature of air-conditioning three-phase electricity charging circuit in correlation technique, the problem that loss is large, not yet proposes effective solution, for this reason at present, main purpose of the present invention is to provide a kind of three-phase electricity charging circuit and air conditioner, to solve the problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of three-phase electricity charging circuit, this three-phase electricity charging circuit comprises: relay circuit, for the first voltage of input rectifying bridge; Electrochemical capacitor equalizer circuit, is connected with relay circuit, and for storing the energy of the first voltage, electrochemical capacitor equalizer circuit comprises: electrochemical capacitor circuit and control circuit, and wherein, electrochemical capacitor circuit comprises the first electric capacity and the second electric capacity; Control circuit is connected with electrochemical capacitor circuit, is the first electric capacity and the second capacitance partial pressure for controlling bleeder circuit according to the second voltage of the second electric capacity and the proportionate relationship of the first voltage.
Further, control circuit comprises: sample circuit, comparison circuit and switching circuit, and sample circuit is connected with electrochemical capacitor circuit, for gathering the first voltage and the second voltage; Comparison circuit, is connected with sample circuit, for generating the first control signal when the second voltage is greater than the half of the first voltage, generates the second control signal when the second voltage is less than the half of the first voltage; Switching circuit is the second capacitance partial pressure for controlling bleeder circuit when receiving the first control signal, and controlling bleeder circuit when receiving the second control signal is the first capacitance partial pressure.
Further, electrochemical capacitor equalizer circuit also comprises: optical coupling isolation circuit, and be connected with switching circuit circuit, optical coupling isolation circuit comprises: the first optocoupler and the second optocoupler; Bleeder circuit comprises: first all presses branch road and second all to press branch road, and the first optocoupler and first all presses branch road to be connected, and the first control signal controls the first optocoupler conducting, and first all presses branch road and the second Capacitance parallel connection to access; Second control signal controls the second optocoupler conducting, and second all presses branch road and the first Capacitance parallel connection to access.
Further, relay circuit comprises: relay, the first resistance and the second resistance, relay comprises first pair of normally-closed contact, second pair of normally-closed contact, first pair of normally opened contact, second pair of normally opened contact, first pair of normally opened contact comprises: the first contact and the second contact, first pair of normally-closed contact comprises the second contact and the 3rd contact, second pair of normally opened contact comprises: the 4th contact and the 5th contact, and second pair of normally-closed contact comprises the 5th contact and the 6th contact; Wherein, second contact is connected with the positive pole of rectifier bridge, second contact is connected with the 3rd contact, 3rd contact is connected with the first end of the first resistance, and the second end of the first resistance is connected with the first end of the second resistance, and the second end of the second resistance is connected with the 6th contact, 6th contact is connected with the 5th contact, 5th contact is as the output of relay circuit, and the 5th contact is connected with electrochemical capacitor circuit, and the first contact is connected with the second end of the first resistance with the 4th contact.
Further, sample circuit comprises: the first sampling electronic circuit and the second sampling electronic circuit; First sampling electronic circuit comprises: the 3rd resistance, the 4th resistance and the 5th resistance, the first end of the 3rd resistance is connected with the first end of the first electric capacity, the first end of the 4th resistance is connected with the second end of the 3rd resistance, the first end of the 5th resistance is connected with the second end of the 4th resistance, and the second end of the 5th resistance is connected with the second end of the second electric capacity; Second sampling electronic circuit comprises: the 6th resistance, the 7th resistance and the 8th resistance, the first end of the 6th resistance is connected with the first end of the second electric capacity, the first end of the 7th resistance is connected with the second end of the 6th resistance, the first end of the 8th resistance is connected with the second end of the 7th resistance, second end of the 8th resistance is connected with the second end of the second electric capacity, the second end ground connection of the second electric capacity.
Further, comparison circuit comprises: operational amplifier and the 9th resistance, the first input end of operational amplifier is connected with the second end of the 7th resistance, second input of operational amplifier is connected with the second end of the 4th resistance, the power end of operational amplifier is connected with the first power supply, and power end is connected with the first end of the 9th resistance, the output of operational amplifier is connected with the second end of the 9th resistance, the output of operational amplifier is connected with switching circuit, wherein, first control signal is high level signal, and the second control signal is low level signal.
Further, switching circuit comprises: the first triode and the second triode, the conducting under high level signal controls of first triode, the conducting under low level signal controls of second triode, wherein, the base stage of the first triode is connected with the output of operational amplifier, the grounded emitter of the first triode, and the collector electrode of the first triode is connected with the first optocoupler; The base stage of the second triode is connected with the output of operational amplifier, the grounded collector of the second triode, and the emitter of the second triode is connected with the second optocoupler.
Further, optical coupling isolation circuit also comprises: the tenth resistance, and wherein, the first end of the tenth resistance is connected with second source; The first input end of the first optocoupler is connected with the second end of the tenth resistance, second input of the first optocoupler is connected with the collector electrode of the first triode, first output and first of the first optocoupler all presses branch road to be connected, and the second output of the first optocoupler is connected with the second end of the second electric capacity; The first input end of the second optocoupler is connected with the second end of the tenth resistance, second input of the second optocoupler is connected with the emitter of the second triode, first output and second of the second optocoupler all presses branch road to be connected, and the second output of the second optocoupler is connected with the second end of the first electric capacity.
Further, first all presses branch road to comprise: the 11 resistance and the 12 resistance, the first end of the 11 resistance is connected with the first output of the first optocoupler, second end of the 11 resistance is connected with the first end of the 12 resistance, and the second end of the 12 resistance is connected with the first end of the second electric capacity; Second all presses branch road to comprise: the 13 resistance and the 14 resistance, the first end of the 13 resistance is connected with the first output of the second optocoupler, second end of the 13 resistance is connected with the first end of the 14 resistance, and the second end of the 14 resistance is connected with the first end of the first electric capacity.
To achieve these goals, according to another aspect of the present invention, additionally provide a kind of air conditioner, comprise three-phase electricity charging circuit.
Adopt the present invention, by the relation of second voltage of control circuit according to the first electric capacity and the first voltage from rectifier bridge, control bleeder circuit to all pressures of electrochemical capacitor, loss and temperature rise is considerably reduced relative to pure resistance equalizer circuit in prior art, thus the electrical appliance kit internal temperature solving air-conditioning three-phase electricity charging circuit in prior art is high, the problem that loss is large, realizes electrochemical capacitor by low-loss and the little mode of heating and all presses.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of air-conditioning three-phase electricity charging circuit in prior art;
Fig. 2 is the structural representation of the three-phase electricity charging circuit according to the embodiment of the present invention; And
Fig. 3 is the structural representation of a kind of optional three-phase electricity charging circuit according to the embodiment of the present invention.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Fig. 2 is the structural representation of the three-phase electricity charging circuit according to the embodiment of the present invention.As shown in Figure 2, this circuit can comprise: relay circuit 10, for the first voltage of input rectifying bridge; Electrochemical capacitor equalizer circuit 20, is connected with relay circuit 10, and for storing the energy of the first voltage, electrochemical capacitor equalizer circuit comprises: electrochemical capacitor circuit 21 and control circuit 23, and wherein, electrochemical capacitor circuit comprises the first electric capacity C1 and the second electric capacity C2; Control circuit is connected with electrochemical capacitor circuit, is the first electric capacity and the second capacitance partial pressure for controlling bleeder circuit according to the second voltage of the second electric capacity and the proportionate relationship of the first voltage.
Adopt the present invention, by the relation of second voltage of control circuit according to the first electric capacity and the first voltage from rectifier bridge, control bleeder circuit to all pressures of electrochemical capacitor, loss and temperature rise is considerably reduced relative to pure resistance equalizer circuit in prior art, thus the electrical appliance kit internal temperature solving air-conditioning three-phase electricity charging circuit in prior art is high, the problem that loss is large, realizes electrochemical capacitor by low-loss and the little mode of heating and all presses.
The above embodiment of the present invention can be applied in the three-phase electricity charging of commercial use air conditioner.Wherein, the first above-mentioned electric capacity and the second electric capacity can be all electrochemical capacitor.
In the above embodiment of the present invention, control circuit 23 can comprise: sample circuit, comparison circuit and switching circuit, and sample circuit is connected with electrochemical capacitor circuit, for gathering the first voltage and the second voltage; Comparison circuit, is connected with sample circuit, for generating the first control signal when the second voltage is greater than the half of the first voltage, generates the second control signal when the second voltage is less than the half of the first voltage; Switching circuit is the second capacitance partial pressure for controlling bleeder circuit when receiving the first control signal, and controlling bleeder circuit when receiving the second control signal is the first capacitance partial pressure.
In above-described embodiment, the bleeder circuit of electrochemical capacitor realizes all pressing by the mode a kind ofly detecting voltage, controlling bleeder circuit by comparing the first voltage and the second voltage, and relatively original pure resistance equalizer circuit significantly reduced loss and temperature rise.
Need to illustrate further, electrochemical capacitor equalizer circuit can also comprise: optical coupling isolation circuit, and be connected with switching circuit circuit, optical coupling isolation circuit comprises as shown in Figure 3: the first optocoupler U1 and the second optocoupler U2; Bleeder circuit comprises: first all presses branch road and second all to press branch road, and the first optocoupler and first all presses branch road to be connected, and the first control signal controls the first optocoupler conducting, and first all presses branch road and the second Capacitance parallel connection to access; Second control signal controls the second optocoupler conducting, and second all presses branch road and the first Capacitance parallel connection to access.
Switched by the parallel resistance of optical coupling isolation circuit to electrochemical capacitor, can isolate control circuit and electrochemical capacitor, thus effectively prevent the impact of the change in voltage on electrochemical capacitor on control circuit, thus the work making the three-phase electricity charging circuit in the above embodiment of the present invention more stable.
According to the abovementioned embodiments of the present invention, relay circuit comprises: relay K 1, first resistance R1 and the second resistance R2, relay comprises first pair of normally-closed contact, second pair of normally-closed contact, first pair of normally opened contact, second pair of normally opened contact, first pair of normally opened contact comprises: the first contact A and the second contact B, first pair of normally-closed contact comprises the second contact B and the 3rd contact C, second pair of normally opened contact comprises: the 4th contact D and the 5th contact E, and second pair of normally-closed contact comprises the 5th contact E and the 6th contact F; Wherein, second contact is connected with the positive pole of rectifier bridge, second contact is connected with the 3rd contact, 3rd contact is connected with the first end of the first resistance, and the second end of the first resistance is connected with the first end of the second resistance, and the second end of the second resistance is connected with the 6th contact, 6th contact is connected with the 5th contact, 5th contact is as the output of relay circuit, and the 5th contact is connected with electrochemical capacitor circuit, and the first contact is connected with the second end of the first resistance with the 4th contact.
Particularly, the B/C of relay K 1 as shown in Figure 3, E/F contact is normally-closed contact, B/A, E/D contact is normally opened contact, G/H contact is control end, the moment control end that powers on is not operating, current charges circuit is that contact B-C-first resistance R1-the 2nd R2-contact F-E arrives electrochemical capacitor C1 and C2 below again, by the now contact A arrived useless, D receives the mid point of charging resistor R1 and R2, such powered on moment contact B, the same current potential of C, for busbar voltage (the first voltage P+ namely in above-described embodiment), contact E, F is 0 with current potential, contact A, the current potential of D is the half of busbar voltage (the first voltage P+ namely in above-described embodiment), after control end effect, the D/E contact, contact of relay and the adhesive of A/B contact, at this moment all same current potential of all contact voltages, the voltage of such relay when powering on moment and normal work between any pair of contact is all no more than P+/2, thus improve the reliability of relay work.Alternatively, the relay K 1 in above-described embodiment also can replace with two relay series connection.
More specifically, the first resistance in above-described embodiment and the second resistance are current-limiting resistance, can prevent powered on moment rush of current, by the connection of relay contact and current-limiting resistance, reduce relay voltage between the contact in moment that powers on, improve the useful life of relay.
As shown in Figure 3, the sample circuit in the above embodiment of the present invention comprises: the first sampling electronic circuit and the second sampling electronic circuit; First sampling electronic circuit comprises: the 3rd resistance R3, the 4th resistance R4 and the 5th resistance R5, the first end of the 3rd resistance is connected with the first end of the first electric capacity, the first end of the 4th resistance is connected with the second end of the 3rd resistance, the first end of the 5th resistance is connected with the second end of the 4th resistance, and the second end of the 5th resistance is connected with the second end of the second electric capacity; Second sampling electronic circuit comprises: the 6th resistance R6, the 7th resistance R7 and the 8th resistance R8, the first end of the 6th resistance is connected with the first end of the second electric capacity, the first end of the 7th resistance is connected with the second end of the 6th resistance, the first end of the 8th resistance is connected with the second end of the 7th resistance, second end of the 8th resistance is connected with the second end of the second electric capacity, the second end ground connection of the second electric capacity.
Particularly, comparison circuit comprises: operational amplifier U3 and the 9th resistance R9, the first input end of operational amplifier is connected with the second end of the 7th resistance, second input of operational amplifier is connected with the second end of the 4th resistance, the power end of operational amplifier is connected with the first power supply Y1, and power end is connected with the first end of the 9th resistance, the output of operational amplifier is connected with the second end of the 9th resistance, the output of operational amplifier is connected with switching circuit, wherein, first control signal is high level signal, and the second control signal is low level signal.
It should be noted that, switching circuit comprises: the first triode Q1 and the second triode Q2, the conducting under high level signal controls of first triode, the conducting under low level signal controls of second triode, wherein, the base stage of the first triode is connected with the output of operational amplifier, the grounded emitter of the first triode, and the collector electrode of the first triode is connected with the first optocoupler; The base stage of the second triode is connected with the output of operational amplifier, the grounded collector of the second triode, and the emitter of the second triode is connected with the second optocoupler.
According to the abovementioned embodiments of the present invention, optical coupling isolation circuit also comprises: the tenth resistance R10, and wherein, the first end of the tenth resistance is connected with second source Y2; The first input end of the first optocoupler is connected with the second end of the tenth resistance, second input of the first optocoupler is connected with the collector electrode of the first triode, first output and first of the first optocoupler all presses branch road to be connected, and the second output of the first optocoupler is connected with the second end of the second electric capacity; The first input end of the second optocoupler is connected with the second end of the tenth resistance, second input of the second optocoupler is connected with the emitter of the second triode, first output and second of the second optocoupler all presses branch road to be connected, and the second output of the second optocoupler is connected with the second end of the first electric capacity.
Further, first all presses branch road to comprise: the 11 resistance R11 and the 12 resistance R12, the first end of the 11 resistance is connected with the first output of the first optocoupler, second end of the 11 resistance is connected with the first end of the 12 resistance, and the second end of the 12 resistance is connected with the first end of the second electric capacity; Second all presses branch road to comprise: the 13 resistance R13 and the 14 resistance R14, the first end of the 13 resistance is connected with the first output of the second optocoupler, second end of the 13 resistance is connected with the first end of the 14 resistance, and the second end of the 14 resistance is connected with the first end of the first electric capacity.
Resistance in two-way sampling electronic circuit in above-described embodiment and the resistance value of two-way and Capacitance parallel connection can be larger, to reduce power consumption.By the voltage on resistance detection two series connection electrolysis electric capacity, realize voltage-sharing in electrochemical capacitor series connection use after comparison value sends into comparator by the switch controlling optical coupler, relatively original pure resistance equalizer circuit significantly reduced loss and temperature rise.
Particularly, rectifier bridge as shown in Figure 3 has three inputs (L1, L2 and L3), it can be the motor of load, compressor or power model energy storage that electrochemical capacitor C1 and C2 connects, first electric capacity C1 and the second electric capacity C2 is withstand voltage can be all 450V, connect in three-phase electricity charging circuit use first electric capacity and the second electric capacity, the withstand voltage of electrochemical capacitor equalizer circuit can bring up to 900V.3rd resistance R3, 4th resistance R4 and the 5th resistance R5 is busbar voltage P+(i.e. the first voltage) first sampling electronic circuit sampling resistor, 6th resistance R6, 7th resistance R7 and the 8th resistance R8 is the detection resistance of the second sampling electronic circuit of upper second voltage of the first electric capacity C2, the the second voltage VC2 be used on detection second electric capacity C2, following function is reached: when second voltage of the second electric capacity C2 equals a half of the first voltage P+ by the design of two groups of sampling resistor values, the i.e. tertiary voltage of VC2=P+/2=VC1(first electric capacity), namely the sampled value of two groups of sample circuits is equal, sampled value can be set as 2V as normally worked, deliver to operational amplifier (i.e. comparator U3), 9th resistance R9 is the pull-up resistor of comparator.
In the above embodiment of the present invention, if the second voltage on the second electric capacity C2 is high, i.e. VC2>P+/2, then export triode side conducting-the 11 resistance R11 and the 12 resistance R12 and the second electric capacity C2 parallel connection access of LED side conducting (wherein the tenth resistance R10 is the current-limiting resistance of 3.3V)-first optocoupler U1 of high level-the first triode Q1 conducting-the first optocoupler U1 after comparator sampling, now two triode Q2 and the second optocoupler U2 are in off state, and the first electric capacity C1 does not have parallel resistance, after second electric capacity C2 parallel connection second all presses branch road, the dividing potential drop that second electric capacity C2 dividing potential drop reduces the first electric capacity C1 increases, voltage distribution tends to balance, otherwise be then the second triode Q2 and the second optocoupler U2 conducting, the first electric capacity C1 parallel connection first all presses branch road (the 13 resistance R13 and the 14 resistance R14) to reduce the voltage of the first electric capacity C1.
State on the invention the first optocoupler in embodiment and the second optocoupler can select can be high voltage withstanding optocoupler, two-way sampling electronic circuit and two-way all press the value of the resistance of branch road can be larger, to reduce power consumption.In above-described embodiment, the equalizer circuit of electrochemical capacitor one is detected, realizes all pressing by the mode comparing control ' switch ', electronic device is adopted to carry out the switching of parallel resistance (as controlled with switching device, as slow in reaction speeds such as relays, switching frequency is low cannot be switched in time, reduce and all press precision), here the parallel resistance of optocoupler to electrochemical capacitor is adopted to switch, and control circuit and electrochemical capacitor can be made to isolate, the impact of the change in voltage on electric capacity on control circuit can be effectively prevent.
To achieve these goals, according to another aspect of the present invention, additionally provide a kind of air conditioner, this air conditioner can comprise any one three-phase electricity charging circuit in above-described embodiment.
Adopt the present invention, three-phase electricity charging circuit is by the relation of second voltage of control circuit according to the first electric capacity and the first voltage from rectifier bridge, control bleeder circuit to all pressures of electrochemical capacitor, loss and temperature rise is considerably reduced relative to pure resistance equalizer circuit in prior art, thus the electrical appliance kit internal temperature solving air-conditioning three-phase electricity charging circuit in prior art is high, the problem that loss is large, realizes electrochemical capacitor by low-loss and the little mode of heating and all presses.
As can be seen from the above description, present invention achieves following technique effect:
Adopt the present invention, by the relation of second voltage of control circuit according to the first electric capacity and the first voltage from rectifier bridge, control bleeder circuit to all pressures of electrochemical capacitor, loss and temperature rise is considerably reduced relative to pure resistance equalizer circuit in prior art, thus the electrical appliance kit internal temperature solving air-conditioning three-phase electricity charging circuit in prior art is high, the problem that loss is large, realizes electrochemical capacitor by low-loss and the little mode of heating and all presses.Adopt the above embodiment of the present invention, relative to traditional business air conditioner three-phase electricity charging circuit, the power reduction of the nearly 10W that electrochemical capacitor grading resistor can be produced is to below 1W, raise the efficiency and reduce temperature rise, the instantaneous voltage between relay contact can be reduced, improve the useful life of relay.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a three-phase electricity charging circuit, is characterized in that, comprising:
Relay circuit, for the first voltage of input rectifying bridge;
Electrochemical capacitor equalizer circuit, is connected with described relay circuit, and for storing the energy of described first voltage, described electrochemical capacitor equalizer circuit comprises: electrochemical capacitor circuit and control circuit, wherein,
Described electrochemical capacitor circuit comprises the first electric capacity and the second electric capacity;
Described control circuit is connected with described electrochemical capacitor circuit, is described first electric capacity and described second capacitance partial pressure for controlling bleeder circuit according to the second voltage of described second electric capacity and the proportionate relationship of described first voltage.
2. three-phase electricity charging circuit according to claim 1, is characterized in that,
Described control circuit comprises: sample circuit, comparison circuit and switching circuit,
Described sample circuit, is connected with described electrochemical capacitor circuit, for gathering described first voltage and described second voltage;
Described comparison circuit, is connected with described sample circuit, for generating the first control signal when described second voltage is greater than the half of described first voltage, generates the second control signal when described second voltage is less than the half of described first voltage;
Described switching circuit is described second capacitance partial pressure for controlling described bleeder circuit when receiving described first control signal, and controlling described bleeder circuit when receiving described second control signal is described first capacitance partial pressure.
3. three-phase electricity charging circuit according to claim 2, is characterized in that,
Described electrochemical capacitor equalizer circuit also comprises: optical coupling isolation circuit, and be connected with described switching circuit circuit, described optical coupling isolation circuit comprises: the first optocoupler and the second optocoupler;
Described bleeder circuit comprises: first all presses branch road and second all to press branch road, and described first optocoupler and described first all presses branch road to be connected, and described first control signal controls described first optocoupler conducting, and described first all presses branch road and described second Capacitance parallel connection to access; Described second control signal controls described second optocoupler conducting, and described second all presses branch road and described first Capacitance parallel connection to access.
4. three-phase electricity charging circuit according to claim 2, is characterized in that,
Described relay circuit comprises: relay, the first resistance and the second resistance,
Described relay comprises first pair of normally-closed contact, second pair of normally-closed contact, first pair of normally opened contact, second pair of normally opened contact, described first pair of normally opened contact comprises: the first contact and the second contact, described first pair of normally-closed contact comprises described second contact and the 3rd contact, described second pair of normally opened contact comprises: the 4th contact and the 5th contact, and described second pair of normally-closed contact comprises described 5th contact and the 6th contact;
Wherein, described second contact is connected with the positive pole of described rectifier bridge, described second contact is connected with described 3rd contact, described 3rd contact is connected with the first end of described first resistance, second end of described first resistance is connected with the first end of described second resistance, second end of described second resistance is connected with described 6th contact, described 6th contact is connected with described 5th contact, described 5th contact is as the output of described relay circuit, described 5th contact is connected with described electrochemical capacitor circuit, described first contact is connected with the second end of described first resistance with described 4th contact.
5. three-phase electricity charging circuit according to claim 3, is characterized in that,
Described sample circuit comprises: the first sampling electronic circuit and the second sampling electronic circuit;
Described first sampling electronic circuit comprises: the 3rd resistance, the 4th resistance and the 5th resistance, the first end of described 3rd resistance is connected with the first end of described first electric capacity, the first end of described 4th resistance is connected with the second end of described 3rd resistance, the first end of described 5th resistance is connected with the second end of described 4th resistance, and the second end of described 5th resistance is connected with the second end of described second electric capacity;
Described second sampling electronic circuit comprises: the 6th resistance, the 7th resistance and the 8th resistance, the first end of described 6th resistance is connected with the first end of described second electric capacity, the first end of described 7th resistance is connected with the second end of described 6th resistance, the first end of described 8th resistance is connected with the second end of described 7th resistance, second end of described 8th resistance is connected with the second end of described second electric capacity, the second end ground connection of described second electric capacity.
6. three-phase electricity charging circuit according to claim 5, is characterized in that,
Described comparison circuit comprises: operational amplifier and the 9th resistance, the first input end of described operational amplifier is connected with the second end of described 7th resistance, second input of described operational amplifier is connected with the second end of described 4th resistance, the power end of described operational amplifier is connected with the first power supply, and described power end is connected with the first end of described 9th resistance, the output of described operational amplifier is connected with the second end of described 9th resistance, the output of described operational amplifier is connected with described switching circuit
Wherein, described first control signal is high level signal, and described second control signal is low level signal.
7. three-phase electricity charging circuit according to claim 6, is characterized in that,
Described switching circuit comprises: the first triode and the second triode, the conducting under described high level signal controls of described first triode, the conducting under described low level signal controls of described second triode,
Wherein, the base stage of described first triode is connected with the output of described operational amplifier, the grounded emitter of described first triode, and the collector electrode of described first triode is connected with described first optocoupler; The base stage of described second triode is connected with the output of described operational amplifier, the grounded collector of described second triode, and the emitter of described second triode is connected with described second optocoupler.
8. three-phase electricity charging circuit according to claim 7, is characterized in that, described optical coupling isolation circuit also comprises: the tenth resistance, wherein,
The first end of described tenth resistance is connected with second source;
The first input end of described first optocoupler is connected with the second end of described tenth resistance, second input of described first optocoupler is connected with the collector electrode of described first triode, first output and described first of described first optocoupler all presses branch road to be connected, and the second output of described first optocoupler is connected with the second end of described second electric capacity;
The first input end of described second optocoupler is connected with the second end of described tenth resistance, second input of described second optocoupler is connected with the emitter of described second triode, first output and described second of described second optocoupler all presses branch road to be connected, and the second output of described second optocoupler is connected with the second end of described first electric capacity.
9. three-phase electricity charging circuit according to claim 3, is characterized in that,
Described first all presses branch road to comprise: the 11 resistance and the 12 resistance, the first end of described 11 resistance is connected with the first output of described first optocoupler, second end of described 11 resistance is connected with the first end of described 12 resistance, and the second end of described 12 resistance is connected with the first end of described second electric capacity;
Described second all presses branch road to comprise: the 13 resistance and the 14 resistance, the first end of described 13 resistance is connected with the first output of described second optocoupler, second end of described 13 resistance is connected with the first end of described 14 resistance, and the second end of described 14 resistance is connected with the first end of described first electric capacity.
10. an air conditioner, comprises the three-phase electricity charging circuit in claim 1 to 9 described in any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410093752.7A CN104917217B (en) | 2014-03-13 | 2014-03-13 | Three-phase electricity charging circuit and air conditioner |
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| CN201410093752.7A CN104917217B (en) | 2014-03-13 | 2014-03-13 | Three-phase electricity charging circuit and air conditioner |
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| CN104917217A true CN104917217A (en) | 2015-09-16 |
| CN104917217B CN104917217B (en) | 2018-06-26 |
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| CN201410093752.7A Active CN104917217B (en) | 2014-03-13 | 2014-03-13 | Three-phase electricity charging circuit and air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607862A (en) * | 2017-09-01 | 2018-01-19 | 北京龙鼎源科技股份有限公司 | Circuit state diagnostic circuit and method |
| CN108418408A (en) * | 2018-03-19 | 2018-08-17 | 奥克斯空调股份有限公司 | A kind of charge control method, device and air conditioner |
| CN114244150A (en) * | 2021-12-31 | 2022-03-25 | 深圳市华芯邦科技有限公司 | Switch converter and detection circuit thereof |
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| CN101783647A (en) * | 2010-02-11 | 2010-07-21 | 上海加冷松芝汽车空调股份有限公司 | Integrated air conditioner frequency converter for air conditioner of electric passenger car |
| CN103534920A (en) * | 2011-05-02 | 2014-01-22 | 大金工业株式会社 | Power converter circuit, and air conditioner |
| CN203800654U (en) * | 2014-03-13 | 2014-08-27 | 珠海格力电器股份有限公司 | Three-phase charging circuit and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101783647A (en) * | 2010-02-11 | 2010-07-21 | 上海加冷松芝汽车空调股份有限公司 | Integrated air conditioner frequency converter for air conditioner of electric passenger car |
| CN103534920A (en) * | 2011-05-02 | 2014-01-22 | 大金工业株式会社 | Power converter circuit, and air conditioner |
| CN203800654U (en) * | 2014-03-13 | 2014-08-27 | 珠海格力电器股份有限公司 | Three-phase charging circuit and air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107607862A (en) * | 2017-09-01 | 2018-01-19 | 北京龙鼎源科技股份有限公司 | Circuit state diagnostic circuit and method |
| CN108418408A (en) * | 2018-03-19 | 2018-08-17 | 奥克斯空调股份有限公司 | A kind of charge control method, device and air conditioner |
| CN114244150A (en) * | 2021-12-31 | 2022-03-25 | 深圳市华芯邦科技有限公司 | Switch converter and detection circuit thereof |
| CN114244150B (en) * | 2021-12-31 | 2023-11-10 | 深圳市华芯邦科技有限公司 | Switch converter and detection circuit thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104917217B (en) | 2018-06-26 |
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