CN104620485A - Inverter device for air conditioner - Google Patents
Inverter device for air conditioner Download PDFInfo
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- CN104620485A CN104620485A CN201380046301.1A CN201380046301A CN104620485A CN 104620485 A CN104620485 A CN 104620485A CN 201380046301 A CN201380046301 A CN 201380046301A CN 104620485 A CN104620485 A CN 104620485A
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- China
- Prior art keywords
- booster circuit
- convertor device
- output voltage
- air conditioner
- circuit
- Prior art date
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/025—Motor control arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inverter Devices (AREA)
- Air Conditioning Control Device (AREA)
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
An inverter device for an air conditioner, comprising a substrate, a plurality of booster circuits, and a control means. The substrate is attached such that cooling air flows to the bottom surface side thereof. The booster circuits are each mounted on to the bottom surface side of the substrate. The control means switches the number of booster circuits that are driven, in accordance with the size of the load.
Description
Technical field
Embodiments of the present invention relate to a kind of convertor device of air conditioner.
Background technology
In the past, for the convertor device that air conditioner has, usually consider the structure with two booster circuits.But, when convertor device is equipped on air conditioner, due to the restriction designed with the space size etc. in the position relationship of compressor or outdoor draft fan, outdoor unit main body, and in machine body disposed in the outdoor for convertor device, relatively easily will guarantee the position in space, the i.e. part of the oblique upper of forced draft fan disposed in the outdoor, and the upper section of compressor.And, for the electric component being housed in convertor device inside, mainly make it be arranged on base lower surface with the state of pendency.Now, form lower face side that generate heat the substrate of large component mounting in convertor device inside in the electric component of booster circuit, that flow through the cooling air from outdoor draft fan, in addition, be configured with radiator in the lower face side of substrate.But the electric component forming booster circuit comprises the large parts of the weight such as reactor (reactor) (inductor (inductor)).Therefore, when the parts of such weight are equipped on base lower surface side with the state of pendency, these parts can vibration etc. because producing along with the driving of such as compressor, and the undesirable condition such as come off.Therefore, in the prior art, this reactor is not installed on the substrate in electric part box, and makes the wall etc. being fixed on separately dividing plate.Thus, except electric part box, also need extra installing space, and need installation parts.
Prior art document
Patent documentation
Patent documentation 1: JP 2011-205808 publication
Patent documentation 2: JP 2004-125260 publication
Summary of the invention
The problem that invention will solve
Present embodiment will provide a kind of convertor device of air conditioner, and it can realize the parts lightweight making formation booster circuit.
Solve the technological means of problem
The air conditioner convertor device of present embodiment has: substrate, multiple booster circuit and controlling organization.Installation base plate, makes to flow through cooling air in the lower face side of substrate.Booster circuit is all mounted in the lower face side of substrate.Controlling organization switches the quantity of the booster circuit driven according to the size of load.
Accompanying drawing explanation
Fig. 1 is the decomposition of the outdoor unit structure of the air conditioner representing the 1st execution mode;
Fig. 2 is the front view representing off-premises station internal structure;
Fig. 3 is the vertical view representing off-premises station internal structure;
Fig. 4 is the vertical view of the outward appearance representing convertor device;
Fig. 5 is the end view of the outward appearance representing convertor device;
Fig. 6 is the exploded perspective view representing convertor device internal structure;
Fig. 7 is the stereogram representing the state of watching inverter board from below;
Fig. 8 is the longitudinal cross-sectional side view along the convertor device of D-D line in Fig. 4;
Fig. 9 is the figure of the electrical structure representing convertor device;
Figure 10 is the figure suitable with Fig. 9 representing the 2nd execution mode.
Embodiment
Be described below in conjunction with multiple execution modes of accompanying drawing to the convertor device of air conditioner.In each execution mode, also the description thereof will be omitted to add identical symbol for the key element that essence is identical.
(the 1st execution mode)
As shown in Figure 1, the off-premises station 10 of air conditioner has the metal outdoor unit main body 11 of rectangular box.At the front housing 12 forming this outdoor unit main body 11 front surface, the blow-off outlet 121 being embedded with fan guard is set.At the right side casing 13 forming outdoor unit main body 11 right flank, the integration valve body cover cap 14 as lateral hatch is releasably installed.The upper surface of outdoor unit main body 11 is made up of top board 15, and the left surface of outdoor unit main body 11 is made up of left side casing 16.The back side of outdoor unit main body 11 is made up of not shown back cabinet, or forms open state.Left side casing 16 descends direction to form grid portion at predetermined intervals thereon, and these grid portions form opening each other.Back cabinet forms grid portion at predetermined intervals by vertical and horizontal, and these grid portions form opening each other.In addition, also can save back cabinet and form peristome.
Below, the internal structure of composition graphs 2 pairs of off-premises stations 10 is described.As shown in Figure 2, in the inside of outdoor unit main body 11, the space above the base plate 17 forming outdoor unit main body 11 bottom surface is divided into two spaces by dividing plate 21.The leading section of dividing plate 21 abuts with the blow-off outlet lateral interior surfaces of front housing 12, and the corner part that rearward end is reported to the leadship after accomplishing a task with back cabinet and right side casing 13 abuts.The side casing 13,16 of dividing plate 21 and left and right abreast, rearwardly extends from front housing 12, the corner part that on the right side of being folded to obliquely from position near back cabinet, casing 13 and back cabinet are reported to the leadship after accomplishing a task.
The chamber being formed in left side casing 16 side of this dividing plate 21 is heat-exchanging chamber 11A, and the chamber being formed in casing 13 side, right side is Machine Room 11B.According to installation site and the form of dividing plate 21, the volume of heat-exchanging chamber 11A is about roughly 3/4 of outdoor unit main body 11 inside, the volume of Machine Room 11B be remaining about roughly 1/4.
Outdoor heat converter 22 is configured with in heat-exchanging chamber 11A.This outdoor heat converter 22 is mounted on the base plate 17 of outdoor unit main body 11, close to left side casing 16 and back cabinet, along above-mentioned left side casing 16 and back cabinet, in roughly L-shaped in vertical view.The corner part that one side of outdoor heat converter 22 is reported to the leadship after accomplishing a task along front housing 12 and left side casing 16 extends, and the corner part that another side is reported to the leadship after accomplishing a task along right side casing 13 and back cabinet extends.
And then, forced draft fan holding components 23 is set in heat-exchanging chamber 11A, supports outdoor draft fan 24 by this forced draft fan holding components 23.That is, outdoor draft fan 24 is positioned at the space surrounded by outdoor heat converter 22, dividing plate 21 and front housing 12 in outdoor unit main body 11.This outdoor draft fan 24 is propeller type fan, and the rear side of its machine body 11 outdoor sucks air, and blows out from front-surface side.And, the not shown strengthening part abutted with front housing 12 is installed through fixture in the upper end of forced draft fan holding components 23.Utilizing the stamping obtained when forming blow-off outlet by punch process to front housing 12, forming this strengthening part.
Utilize the air-supply effect of this outdoor draft fan 24, as shown in arrow A, B in Fig. 3, left side casing 16 side of opening structure and back cabinet side become the suction side of extraneous air, and front housing 12 side at the blow-off outlet place relative with the axial front surface side of outdoor draft fan 24 becomes the blowout side of the air after heat exchange.Now, because dividing plate 21 to be folded to the corner part that right side casing 13 and back cabinet report to the leadship after accomplishing a task obliquely from position near back cabinet, therefore a part for the cooling air formed by the air-supply effect of outdoor draft fan 24, directedly to flow along this dividing plate 21, and guide in convertor device 100 the part place be projected in heat exchanger chamber 11A.In figure 3, the cooling air being directed to convertor device 100 is represented by arrow B.
On the other hand, in the 11B of Machine Room, be configured with compressor 25 and gas-liquid separator 26, and contain the pipe arrangement base part 27 comprising four-way change-over valve etc. be connected with above-mentioned compressor 25 and gas-liquid separator 26.This pipe arrangement base part 27 has the integration valve body (pipe arrangement connection switch valve) be connected with refrigerant pipe that never illustrated indoor set extends.Although not shown, but this integration valve body exposes from the bottom of right side casing 13, and is covered by above-mentioned integration valve body cover cap 14.Above-mentioned compressor 25, gas-liquid separator 26, four-way change-over valve etc. are connected with the outdoor heat converter 22 in heat-exchanging chamber 11A or the indoor heat converter etc. be housed in indoor set through refrigerant pipe, form freeze cycle thus.
Comprise the Machine Room freeze cycle parts of the compressor 25 be configured in the 11B of Machine Room, gas-liquid separator 26, four-way change-over valve, pipe arrangement base part 27 etc., the size in its whole height direction is less than the size from base plate 17 to the short transverse of top board 15, therefore, in outdoor unit main body 11, in the oblique upper part of outdoor draft fan 24 and the upper portion office of Machine Room freeze cycle parts, spatially have more than needed.And, convertor device 100 is installed in this space segment.That is, the upper end of dividing plate 21 forms breach, embeds convertor device 100, and be fixed on the state be clipped between dividing plate 21 and top board 15 in this notch part office.Now, in outdoor unit main body 11, above Machine Room freeze cycle parts convertor device 100 being configured in comprise compressor 25, and and these Machine Room freeze cycle parts there is interval.This convertor device 100 entirety is in thin box-shaped, and it about roughly 3/4 is configured in the 11B of Machine Room, and remaining about roughly 1/4 is projected in heat-exchanging chamber 11A.
Below, the structure of this convertor device 100 is further described.As shown in Figure 4 and Figure 5, the housing 31 forming the outline of convertor device 100 is overall rectangular.As shown in Figure 6, this housing 31 is made up of basal part 32 and covering part 33.Basal part 32 is metal, forms the rectangular box of top-open.The side surface part of basal part 32 is provided with multiple air vent hole 321 and air vent hole 322.In the side surface part of basal part 32, be provided with the part of air vent hole 321, not block the degree of this air vent hole 321 and the state formed between gap, splash guard 34 be releasably installed.This splash guard 34 is the parts invaded from air vent hole 321 for anti-sealing etc. in convertor device 100.
The top-open portion of this basal part 32, by covering part 33 capping being all metal rectangular plate-like, thus, forms the housing 31 of rectangular box.Between basal part 32 and covering part 33, be configured with resinous substrate pedestal 35, this substrate pedestal 35 installs inverter board 36.And, in order to anti-sealing etc. invades basal part 32 inside from upper surface side, there is at the periphery of covering part 33 joggling part bent with the outer peripheral face of covered substrate base 35 downwards.In the bottom surface of basal part 32, that is, the part forming the bottom surface of convertor device 100 is provided with the peristome 37 be communicated with convertor device 100 inside.This peristome 37 is substantially rectangular in what extend on vertical with the length direction of convertor device 100 direction.
The CPU of the molar behavior for controlling off-premises station 10 is equipped with in the upper surface side of inverter board 36 or lower face side, and the various electric component such as the memory of storing control program or running resume etc.Now, in convertor device 100, inverter board 36 is configured by covering part 33, therefore, in the housing 31 of convertor device 100, larger space can be guaranteed in the lower face side of inverter board 36 compared with upper surface side.Thus, the cooling air entered from convertor device 100 outside easily flows into the lower face side of inverter board 36.
And, be equipped with noise filter 51, diode bridge 52 as full-wave rectifying circuit, multiple booster circuit 53, electrolytic capacitor 54 and for driving the converter circuit 55 etc. of load in the lower face side of this inverter board 36.Now, as booster circuit 53, be equipped with 3 booster circuits 53A, 53B, 53C.As shown in Figure 7, for the electrolytic capacitor 54 that the relatively large weight of size in these electric components is larger, carry with the state of hanging in inverter board 36 lower surface length direction substantially central portion.In addition, for other electric components, also carry with the state of pendency at the lower surface of inverter board 36.
Booster circuit 53A, 53B, 53C have inductor 61A, 61B, 61C respectively; Diode 62A, 62B, 62C; Switch element 63A, 63B, 63C.As shown in Figure 7, for inductor 61A, 61B, 61C that the relatively large weight of size in above-mentioned electric component is also larger, carried with the state of hanging in inverter board 36 lower surface length direction end side.For other electric components, also carried with the state of pendency at inverter board 36 lower surface.Now, inductor 61A, 61B, 61C are mounted on the special substrate that is provided separately with inverter board 36, and make together all to be mounted in an inverter board 36 with other electric components.Now, switch element 63A, 63B, 63C is made up of MOSFET or IGBT of booster circuit.
In addition, at the lower surface of inverter board 36, comparing the position of length direction central portion deflection inductor 61A, 61B, 61C side, radiator 71 for cooling the electric component generated heat because of driving is installed, and makes it cover the electric component such as diode bridge 52 and converter circuit 55.This radiator 71 is equivalent to radiating part, such as, be made up of fin etc.As shown in Figure 5 and Figure 8, this radiator 71 is exposed to convertor device 100 outside from above-mentioned peristome 37.Now, convertor device 100 is installed on off-premises station 10 outdoor unit main body 11 inside state under, radiator 71 is exposed to the lower side at outdoor draft fan 24 place.
In addition, the following side of inverter board 36, as shown in Figure 7 and Figure 8, is separated for high-temperature portion 72 and low-temp. portion 73 by installation of heat radiator 71.And inductor 61A, 61B, 61C are mounted in high-temperature portion 72, electrolytic capacitor 54 is mounted in low-temp. portion 73, is formed between the two across the state of radiator 71.Thus, even if inductor 61 generates heat because of driving, its heat also can be absorbed by radiator 71, is difficult to flow to low-temp. portion 73 from high-temperature portion 72.Radiator 71 is formed as fin-like, has multiple groove portion, can guarantee large area of dissipation with little space, can effectively prevent heat from flowing into low-temp. portion 73 from high-temperature portion 72.
And then as shown in arrow B in Fig. 3, a part for the cooling air generated because of the air-supply effect of outdoor draft fan 24 flows along dividing plate 21.Thus, cooling air is supplied to be arranged on the convertor device 100 of the inside of outdoor unit main body 11, is especially projected into high-temperature portion 72 side in heat exchanger chamber 11A.Thus, cooling air can be utilized efficiently to cause the high-temperature portion 72 of high temperature to cool to because inductor 61A, 61B, 61C drive.
Because high-temperature portion 72 side at convertor device 100 is provided with multiple air vent hole 321, therefore, the air of convertor device 100 inside can be replaced via these air vent holes 321 with outside air, and thus, can shed the heat in high-temperature portion 72 outside.And, because low-temp. portion 73 side at convertor device 100 is also provided with multiple air vent hole 322, therefore, the air of convertor device 100 inside can be replaced via these air vent holes 322 with outside air, thus, also can shed the heat in low-temp. portion 73 outside.
Although not shown, but except being equipped with above-mentioned various electric component, inverter board 36 is also connected with the distribution extended from various equipment such as the outdoor draft fans 24 in the compressor 25 in the 11B of Machine Room, the four-way change-over valve forming pipe arrangement base part 27, heat-exchanging chamber 11A.Convertor device 100 becomes the state of following side towards the lower side at outdoor draft fan 24 place of inverter board 36 in outdoor unit main body 11.
Below, composition graphs 9 is described the circuit structure of this convertor device 100 further.As shown in Figure 9, at the input side of diode bridge 52, connect AC power 80 through noise filter 51.Multiple booster circuit 53A, 53B, 53C is connected at the outlet side of diode bridge 52.
The positive output terminals of diode bridge 52 through forming inductor 61A, 61B, 61C and diode 62A, 62B, 62C of booster circuit 53A, 53B, 53C, with a square end sub-connection of electrolytic capacitor 54.On the other hand, the negative output terminals of diode bridge 52 is connected with the opposing party's terminal of electrolytic capacitor 54.Similarly, switch element 63A, 63B, 63C of forming booster circuit 53A, 53B, 53C are arranged on inductor 61A, 61B, 61C and the mutual tie point of diode 62A, 62B, 62C, and between the negative output terminals of diode bridge 52.
Direct current supply line L3, L4 are connected to the two-terminal of electrolytic capacitor 54.And above-mentioned, between direct current supply line L3, L4, output voltage detecting circuit 91 is set.This output voltage detecting circuit 91 comprises resistance 92 and the resistance 93 of series connection, and the magnitude of voltage of dividing point is exported to power-factor improvement control unit 300.Power-factor improvement control unit 300, according to the magnitude of voltage of input, monitors the output voltage exporting to converter circuit 55.And the driving of power-factor improvement control unit 300 FEEDBACK CONTROL booster circuit 53, reaches to make its output voltage the target voltage values set by main control unit 400.
Now, resistance 93 has variable resistance 94.Main control unit 400, by changing the resistance value of this variable resistance 94, changes the voltage swing of electrolytic capacitor 54, in other words, changes the size (desired value of output voltage) exporting to the output voltage of converter circuit 55.Now, the resistance value of variable resistance 94 can be changed to " underloading ", " in carry ", " heavy duty " these 3 gears by main control unit 400.Thus, the voltage swing of electrolytic capacitor 54, that is, to the size of the output voltage of converter circuit 55 also variable more " underloading ", " in carry ", " heavy duty " these 3 gears.
Converter circuit 55 utilizes its switch motion, inputted direct voltage VDC is transformed to high frequency voltage, exports to load 120.Now, the compressor 25 of the freeze cycle of air conditioner is connected and composed, as load 120.And, utilize the on/off action of not shown gate control circuit to the not shown switch element forming converter circuit 55 to control.
Power-factor improvement control unit 300 is respectively to switch element 63A, 63B, 63C output drive signal of each booster circuit 53A, 53B, 53C.Now, power-factor improvement control unit 300 after the electric current vanishing flowing through inductor 61A, 61B, 61C or diode 62A, 62B, 62C, turn on-switch element 63A, 63B, 63C.That is, power-factor improvement control unit 300 drives each booster circuit 53A, 53B, 53C based on so-called critical conduction mode.
Power-factor improvement control unit 300 passes through to drive each booster circuit 53A, 53B, 53C, to the direct voltage VDC applying between direct current supply line L3, L4 to be set by main control unit 400.That is, the output voltage set by main control unit 400 is exported to converter circuit 55 by power-factor improvement control unit 300.Now, the size of the output voltage of power-factor improvement control unit 300 required by compressor 25, switches the quantity of the booster circuit 53 driven.
That is, power-factor improvement control unit 300 is set as, when the size of the output voltage required by compressor 25 is " underloading ", drives a booster circuit 53A, and does not drive two other booster circuit 53B, 53C.At this, this drive form is claimed to be single drive mode.And when driving booster circuit 53 with single drive mode, main control unit 400 changes the resistance value of variable resistance 94 for " underloading ".Thus, the size of the output voltage for converter circuit 55 is also changed to " underloading ".Power-factor improvement control unit 300 couples of booster circuit 53A carry out FEEDBACK CONTROL, with make for converter circuit 55 output voltage for change after magnitude of voltage.
In addition, power-factor improvement control unit 300 is set as, when the size of the output voltage required by compressor 25 is " in carry ", drives two booster circuits 53A, 53B, and does not drive another one booster circuit 53C.At this, this drive form is claimed to be the 1st intertexture (interleave) type of drive.And when driving booster circuit 53 with the 1st intertexture type of drive, the resistance value that main control unit 400 changes variable resistance 94 is " in carry ".Thus, the size of the output voltage for converter circuit 55 is made also to change to " in carry ".Power-factor improvement control unit 300 couples of booster circuits 53A, 53B carry out FEEDBACK CONTROL, with make for converter circuit 55 output voltage for change after magnitude of voltage.
In addition, power-factor improvement control unit 300 is set as, when the size of the output voltage required by compressor 25 is " heavy duty ", drives 3 booster circuits 53A, 53B, 53C, that is, drives whole booster circuits 53.At this, this drive form is claimed to be the 2nd intertexture type of drive.And when driving booster circuit 53 with the 2nd intertexture type of drive, main control unit 400 changes the resistance value of variable resistance 94 for " heavy duty ".Thus, the size of the output voltage for converter circuit 55 is also changed to " heavy duty ".Power-factor improvement control unit 300 couples of booster circuits 53A, 53B, 53C carry out FEEDBACK CONTROL, with make for converter circuit 55 output voltage for change after magnitude of voltage.
The load utilizing main control unit 400 to be equipped with judges that control unit 500 is to judge the size of the output voltage required by compressor 25.And judge that the result of determination of control unit 500 gives power-factor improvement control unit 300 by based on this load, power-factor improvement control unit 300 judges according to from this load the result of determination that control unit 500 obtains, the drive form of switching booster circuit 53 described above, in other words switches the quantity of the booster circuit 53 driven.
At this, the example of the determination processing judging control unit 500 based on this load is described.Now, this load judges that control unit 500 is set as follows, its according to the input current inputted from AC power 80, the amount of power supplied from AC power 80, export output voltage to the converter circuit 55 that compressor 25 drives, the motor current of compressor 25, compressor 25 to operating frequency at least any one size, to the size of the output voltage required by compressor 25, judge with " underloading ", " in carry ", " heavy duty " these 3 gears.
Input electric cur-rent measure portion 600 is utilized to detect the input current inputted from AC power 80.Input current detects by current detector 601 in this input electric cur-rent measure portion 600, and its detected value is given load judgement control unit 500.According to the input current value from AC power 80 detected by input electric cur-rent measure portion 600, and the input voltage from AC power 80 detected by input voltage measurement portion 700, calculate the amount of power supplied from AC power 80.The AC-input voltage between AC power cord L1, L2 is detected in input voltage measurement portion 700, and its detected value is given load judgement control unit 500.Load judges that control unit 500 is according to the input current value sent here from input electric cur-rent measure portion 600 and the input voltage value sent here from input voltage measurement portion 700, calculates the amount of power supplied by AC power 80.
Motor current test section 800 is utilized to detect the motor current of compressor 25.The 800 pairs of loads 120 of this motor current test section, in this case the motor current of compressor 25 detects, and its detected value is given load judgement control unit 500.Frequency detecting portion 900 is utilized to detect the operating frequency of compressor 25.The operating frequency of 900 pairs, this frequency detecting portion load 120 (in this case compressor 25) detects, and its detected value is given load judgement control unit 500.Load judges that control unit 500 is described above, according in the detected value sent here from each test section at least any one, judge the size of the output voltage required by compressor 25.
In addition, power-factor improvement control unit 300 is also set as, according to the temperature of switch element 63A, 63B, 63C, switches the quantity of the booster circuit 53 driven.Now, the temperature of temperature detection sensor 631 sense switch element 63A, 63B, 63C of being such as made up of thermistor etc. is utilized.Temperature detection sensor 631 is equivalent to temperature testing organization, detects the temperature of each switch element 63A, 63B, 63C, and gives power-factor improvement control unit 300 by its detected value.Power-factor improvement control unit 300, according to the detected temperatures sent here from temperature detection sensor 631, switches the quantity of the booster circuit 53 driven.
In this situation, such as, time with single drive mode driving booster circuit 53, if the temperature of switch element 63A exceedes fiducial value, then switch to the 1st intertexture type of drive or the 2nd intertexture type of drive, also drive other switch elements 63B, 63C, alleviate the burden of switch element 63A thus, in other words, other switch elements 63B, 63C is given by the load of switch element 63A.Thus, the driving load of switch element 63A can be suppressed, temperature is declined.
In addition, such as, time with the 1st intertexture type of drive driving booster circuit 53, when the temperature of switch element 63A, 63B exceedes fiducial value, or also can increase the quantity of driven booster circuit 53, and the output voltage set by main control unit 400 is modified to lower value simultaneously, replace with this quantity switching to the 2nd intertexture type of drive to increase driven booster circuit 53.Thereby, it is possible to shorten the ON time of each switch element 63, lighten the load.
And power-factor improvement control unit 300, main control unit 400, load judge that control unit 500 is the parts of the controlling organization forming present embodiment, also can form above-mentioned each control unit by a control unit.In addition, the controlling organization of present embodiment can be made up of hardware, also by software sharing, can also can be made up of combination of hardware.
As described above, according to the present embodiment, the convertor device 100 of air conditioner the size of output voltage required by the compressor 25 as load can switch the quantity of the booster circuit 53 driven.Thus, by suitably adjusting the quantity of driven booster circuit 53, required output voltage can be exported exactly.
In this situation, owing to being equipped with 3 booster circuits 53, therefore compared with the existing structure only having one or two booster circuit, miniaturization and the lightweight of inductor 61A, 61B, the 61C forming each booster circuit 53A, 53B, 53C can be realized.Thus, when in the housing of the off-premises station 10 of air conditioner, when carrying convertor device 100 upside down, namely, when making the inductor 61 of formation booster circuit 53 carry under the state overhanging inverter board 36 lower face side, due to the lightweight of these inductors 61 itself, therefore can prevent it from coming off.
In addition, for each inductor 61A, 61B, 61C, because it is miniaturized, therefore can be equipped in the dedicated substrate of inductor, they can be mounted in the inverter board 36 common with other electronic units.In addition, because inductor 61A, 61B, 61C are miniaturized, need not dedicated substrate be used, therefore also can realize miniaturization and the lightweight of convertor device 100 entirety.
In addition, owing to can alleviating and disperseing, to the load of each booster circuit 53 applying, to suppress the component parts temperature of each booster circuit 5 to rise, therefore, the reliability of convertor device 100 can be improved.In addition, by suitably adjusting the quantity of the booster circuit 53 driven, reducing the circuit loss in each booster circuit 53, converter running can be carried out efficiently, thus operation of air conditioner can be carried out with low power consumption.
In addition, when switching the quantity of the booster circuit 53 driven, convertor device 100 utilizes variable resistance 94 to change the size of output voltage.Thus, according to the quantity of driven booster circuit 53, can also make suitable adjustment to the desired value of output voltage, required output voltage can be made to keep stable and export.
In addition, convertor device 100, according to the input current inputted from AC power 80, the amount of power supplied from AC power 80, at least any one the size exported to the operating frequency of output voltage to the converter circuit 55 that compressor 25 drives, the motor current of compressor 25, compressor 25, switches the quantity of driven booster circuit 53.Thus, can running according to air conditioner time various detected values, delicately the quantity of driven booster circuit 53 is adjusted, more efficiently can carry out converter running.
In addition, convertor device 100, according to the temperature of the switch element 63 of each booster circuit 53 of formation, switches the quantity of the booster circuit 53 driven.Thus, can prevent switch element 63 from causing damage because of heat, thus also can improve the reliability of convertor device 100.
In addition, for convertor device 100,71 points, radiator is utilized to be interposed between part inverter board 36 being equipped with inductor 61 and the part being equipped with electrolytic capacitor 54 in inverter board 36.Thus, not easily make the heat of inductor 61 reach electrolytic capacitor 54, electrolytic capacitor 54 temperature can be suppressed to rise.The rising of electrolytic capacitor 54 temperature can make a big impact to the life-span of convertor device 100.Thus, by suppressing electrolytic capacitor 54 temperature to rise, the life-span of convertor device 100 can be maintained.
(the 2nd execution mode)
Below, the 2nd execution mode is described.As shown in Figure 10, in convertor device 200, corresponding with 3 booster circuits 53A, 53B, 53C, and there are 3 power-factor improvement control units 300A, 300B, 300C.And each power-factor improvement control unit 300A, 300B, 300C, according to the driving instruction carrying out main control unit 400, control the driving of corresponding booster circuit 53A, 53B, 53C respectively individually.These power-factor improvement control units 300A, 300B, 300C are inputted respectively to the magnitude of voltage of the dividing point of output voltage detecting circuit 91.In addition, these power-factor improvement control units 300A, 300B, 300C are inputted respectively to the temperature detection value of temperature detection sensor 631.
According to this execution mode, can the size of output voltage required by compressor 25, drive booster circuit 53A, 53B, 53C separately, the quantity of driven booster circuit 53 can be switched accurately.
The convertor device of the air conditioner in multiple execution mode described above has substrate, multiple booster circuit and controlling organization.Installation base plate, makes effluent supercooling wind in its lower section.Booster circuit is made to be equipped on the lower face side of substrate respectively.Controlling organization, according to the size of load, switches the quantity of the booster circuit driven.According to this structure, by suitably adjusting the quantity of the booster circuit driven, maintain this function of output voltage required by suitably exporting, and realize lightweight and the miniaturization of the parts forming booster circuit.
And, preferably there are more than 3 booster circuits, component parts lightweight and miniaturization can be made further thus.
Above-mentioned multiple execution mode, is only the prompting provided as an example, does not form the restriction to invention scope.The execution mode of above-mentioned explanation can be implemented with other various forms, and can various omission, replacement and distortion be carried out within a range not departing from the gist of the invention.Present embodiment and distortion thereof all covered in invention scope and purport, and in the invention covered in described in claims and scope equivalent with it.
Claims (6)
1. a convertor device for air conditioner, has:
Substrate, is installed to be lower face side and flows through cooling air;
Multiple booster circuit, is equipped on the lower face side of described substrate; With
Controlling organization, according to the size of load, switches the quantity of driven described booster circuit.
2. the convertor device of air conditioner as claimed in claim 1,
Have:
Converter circuit, drives described load;
Output voltage detecting circuit, detects the output voltage exporting described converter circuit to; With
Variable resistance, is arranged at described output voltage detecting circuit, changes the size of the output voltage exporting described converter circuit to,
Described controlling organization, when switching the quantity of the described booster circuit driven, utilizes described variable resistance to change the size of output voltage.
3. the convertor device of air conditioner as claimed in claim 1 or 2,
Multiple described controlling organization is provided with accordingly with multiple described booster circuit,
Each controlling organization controls the driving of corresponding described booster circuit respectively.
4. the convertor device of air conditioner according to any one of claims 1 to 3,
As described load, there is compressor,
Described controlling organization, according to the input current inputted from AC power, the amount of power from AC power supply, at least any one the size exported to the operating frequency of the output voltage to the converter circuit that described compressor drives, the motor current of described compressor, described compressor, switches the quantity of the described booster circuit driven.
5. the convertor device of air conditioner according to any one of Claims 1 to 4,
There is the temperature testing organization detected the temperature of the switch element forming described booster circuit,
Described controlling organization, according to the detected temperatures of described temperature testing organization, switches the quantity of the described booster circuit driven.
6. the convertor device of air conditioner according to any one of Claims 1 to 5,
Have:
Inductor and electrolytic capacitor, described inductor forms described booster circuit; With
Radiating part, is arranged at described substrate,
Described radiating part is utilized to separate the part being equipped with described inductor on the substrate and the part being equipped with described electrolytic capacitor on the substrate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-197419 | 2012-09-07 | ||
| JP2012197419A JP2014054096A (en) | 2012-09-07 | 2012-09-07 | Inverter device of air conditioner |
| PCT/JP2013/072576 WO2014038402A1 (en) | 2012-09-07 | 2013-08-23 | Inverter device for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104620485A true CN104620485A (en) | 2015-05-13 |
| CN104620485B CN104620485B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380046301.1A Expired - Fee Related CN104620485B (en) | 2012-09-07 | 2013-08-23 | The convertor device of air conditioner |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2014054096A (en) |
| KR (1) | KR101726099B1 (en) |
| CN (1) | CN104620485B (en) |
| WO (1) | WO2014038402A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572008A (en) * | 2018-05-18 | 2019-12-13 | 本田技研工业株式会社 | Power conversion device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015389306B2 (en) | 2015-03-27 | 2018-04-26 | Mitsubishi Electric Corporation | Step-up device and converter device |
| WO2018025355A1 (en) * | 2016-08-03 | 2018-02-08 | 三菱電機株式会社 | Power conversion apparatus, motor driving control apparatus, blower, compressor, and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2750823B2 (en) * | 1994-11-08 | 1998-05-13 | 株式会社三社電機製作所 | Portable power supply device and method of manufacturing casing thereof |
| JP2007116834A (en) * | 2005-10-20 | 2007-05-10 | Oki Electric Ind Co Ltd | Multiphase dc-dc converter circuit |
| CN101162855A (en) * | 2006-10-13 | 2008-04-16 | 三菱重工业株式会社 | Control board and control apparatus |
| CN101208854A (en) * | 2006-01-16 | 2008-06-25 | 三菱电机株式会社 | Drive circuit of motor and outdoor unit of air conditioner |
| JP4133184B2 (en) * | 2002-10-02 | 2008-08-13 | シャープ株式会社 | Air conditioner outdoor unit |
| JP2010148291A (en) * | 2008-12-19 | 2010-07-01 | Toyota Motor Corp | Dc-dc converter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2571942Y2 (en) * | 1992-10-12 | 1998-05-20 | ネミック・ラムダ株式会社 | Boost converter |
| KR20110014435A (en) * | 2009-08-05 | 2011-02-11 | 엘지전자 주식회사 | Air conditioner |
| JP5482358B2 (en) | 2010-03-26 | 2014-05-07 | ダイキン工業株式会社 | Switching power supply circuit control method |
-
2012
- 2012-09-07 JP JP2012197419A patent/JP2014054096A/en active Pending
-
2013
- 2013-08-23 WO PCT/JP2013/072576 patent/WO2014038402A1/en active Application Filing
- 2013-08-23 KR KR1020157004162A patent/KR101726099B1/en active IP Right Grant
- 2013-08-23 CN CN201380046301.1A patent/CN104620485B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2750823B2 (en) * | 1994-11-08 | 1998-05-13 | 株式会社三社電機製作所 | Portable power supply device and method of manufacturing casing thereof |
| JP4133184B2 (en) * | 2002-10-02 | 2008-08-13 | シャープ株式会社 | Air conditioner outdoor unit |
| JP2007116834A (en) * | 2005-10-20 | 2007-05-10 | Oki Electric Ind Co Ltd | Multiphase dc-dc converter circuit |
| CN101208854A (en) * | 2006-01-16 | 2008-06-25 | 三菱电机株式会社 | Drive circuit of motor and outdoor unit of air conditioner |
| CN101162855A (en) * | 2006-10-13 | 2008-04-16 | 三菱重工业株式会社 | Control board and control apparatus |
| JP2010148291A (en) * | 2008-12-19 | 2010-07-01 | Toyota Motor Corp | Dc-dc converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572008A (en) * | 2018-05-18 | 2019-12-13 | 本田技研工业株式会社 | Power conversion device |
| CN110572008B (en) * | 2018-05-18 | 2021-07-13 | 本田技研工业株式会社 | Power conversion device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014038402A1 (en) | 2014-03-13 |
| KR101726099B1 (en) | 2017-04-11 |
| KR20150038118A (en) | 2015-04-08 |
| CN104620485B (en) | 2017-06-20 |
| JP2014054096A (en) | 2014-03-20 |
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