CN101586844B - Outdoor machine of air conditioner - Google Patents

Outdoor machine of air conditioner Download PDF

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Publication number
CN101586844B
CN101586844B CN2008100532224A CN200810053222A CN101586844B CN 101586844 B CN101586844 B CN 101586844B CN 2008100532224 A CN2008100532224 A CN 2008100532224A CN 200810053222 A CN200810053222 A CN 200810053222A CN 101586844 B CN101586844 B CN 101586844B
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air
pcb
control device
power distribution
distribution chamber
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Expired - Fee Related
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CN2008100532224A
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CN101586844A (en
Inventor
朴允基
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Abstract

The invention discloses an outdoor machine of an air conditioner, which is provided with a baffle plate, a suction channel part, an air exhaust part and a radiating member. The baffle plate divides a power distribution chamber provided with a control device and an air feeding chamber provided with a fan; the outdoor machine of the air conditioner also forms the suction channel part which enables the air in the power distribution chamber to be communicated with external air; the air exhaust part enabling the air of the power distribution chamber to flow into the air feeding chamber is formed onthe baffle plate to communicate the power distribution chamber and the air feeding chamber; and the inside of the air feeding chamber is also provided with the radiating member contacting with the co ntrol device positioned in the power distribution chamber and enabling the control device to radiate through carrying out heat exchange with the flowing air in the air feeding chamber. The control device is provided with a frequency conversion printed circuit board (PCB), a stabilized voltage PCB and a main PCB. The frequency conversion PCB contacts with the radiating member; the stabilized voltage PCB is fixed at the back side of the power distribution chamber; and the main PCB is arranged corresponding to the stabilized voltage PCB. The external air is sucked into the power distribution chamber according to the pressure difference of the air feeding chamber and the power distribution chamber, the invention completely increases the sucked air quantity of the air injected into the power distribution chamber and also completely improves the cooling efficiency of the control device along with the increase of the sucked air quantity when the power distribution chamber is not provided witha cooling fan.

Description

The off-premises station of air regulator
Technical field
The present invention relates to a kind of air regulator.The off-premises station that particularly relates to a kind of air regulator for cooling controller.
Background technology
In general, air regulator drives the refrigerant loop, carries out indoor cold and hot adjusting.Air regulator includes and is disposed at outdoor off-premises station and is disposed at indoor indoor set.
Include outdoor heat converter, air-supply arrangement, compressor and control device etc. in the off-premises station.The control device conversion is outside uses power supply, and dynamo-electric machine outside the control room; Control device is because of conversion electric power, and wear prevention is so temperature uprises.Control device includes a plurality of semiconductor elements in this control device, so need to cool.Thus, control device is provided with fan nearby, in order to suck extraneous air, cooling controller.
But traditional off-premises station should be provided with other cooling fan in order to make the control device cooling, like this, cooling fan arranges the volume that the space can increase off-premises station, in addition, cooling fan is set the expense of manufacturing is increased, and increase unnecessary power consumption.
Cooling fan is cooling controller, and the forced circulation air has so also increased the noise of off-premises station.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of size that can reduce small product size, the unit price that reduction is made, and the off-premises station of the air regulator of the consumption of minimizing electric power and reduction noise.
The technical solution adopted in the present invention is: a kind of off-premises station of air regulator includes: divide the switchgear house that is provided with control device and the baffle plate that is provided with the plenum chamber of fan; Also be formed with the suction passage portion that the air in the switchgear house is connected with extraneous air; For switchgear house and plenum chamber are connected, also be formed with the air discharge portion that the air that makes switchgear house flows into plenum chamber at baffle plate; In plenum chamber, also be provided with the control device that is positioned at switchgear house and contact, and by with plenum chamber in moving air carry out the radiating piece that heat exchange makes the control device heat radiation.
Described control device includes: with the contacted frequency conversion PCB of radiating piece; Be fixed on the voltage stabilizing PCB of switchgear house rear side; And with the main PCB of the corresponding setting of voltage stabilizing PCB.
Described suction passage portion flows between voltage stabilizing PCB and the main PCB air that sucks from voltage stabilizing PCB rear side.
Described voltage stabilizing PCB rear side cools off by sucking the mobile air of passage portion.
Described air discharge portion is formed on the downside of control device.
The a plurality of fin that carry out heat exchange that also comprise setting in the described radiating piece.
Described suction passage portion and air discharge portion are cornerwise direction setting.
Another technical scheme of the present invention is: a kind of off-premises station of air regulator, the switchgear house that is provided with control device is connected with the outside with the plenum chamber that is provided with fan, under the effect of the air pressure difference of switchgear house and plenum chamber, the extraneous air of inflow switchgear house flows into plenum chamber after making the control device cooling.
Also be provided with radiating piece in the described plenum chamber, described radiating piece contacts with control device, absorbs the heat of control device.
The off-premises station of air regulator of the present invention is compared with traditional off-premises station has following effect.
The off-premises station of air regulator of the present invention, according to plenum chamber and switchgear house pressure differential extraneous air is sucked into switchgear house, make the air quantity of the air intake that injects switchgear house obtain increasing thoroughly, along with the increase that sucks air quantity, the cooling effectiveness of its control device also is improved up hill and dale.
And the off-premises station of air regulator of the present invention even at switchgear house cooling fan is not set, also can cool off the control device of switchgear house, thus can reduce the volume size of off-premises station and the expense of making, and reduce the noise of off-premises station.
Simultaneously, the off-premises station of air regulator of the present invention, the interchange PCB that generates heat along with Yin Gaowen and the area of voltage stabilizing PCB and contact with air and the increase of time just can be cooled off the PCB of relatively-high temperature.
Description of drawings
Fig. 1 is the external structure schematic diagram of outdoor unit of air conditioner of the present invention;
Fig. 2 is the internal structure schematic diagram of off-premises station shown in Figure 1;
Fig. 3 is off-premises station control device Air fluidal texture schematic diagram shown in Figure 2.
Wherein:
1: Machine Room 2: switchgear house
3: plenum chamber 50: baffle plate
57: radiating piece 55: air discharge portion
70: control device 71,72,73:PCB
84: interconnecting part 85: suck passage portion
89: isolation panel 111: fan
The specific embodiment
Below, the specific embodiment for the off-premises station purpose that realizes air regulator of the present invention is illustrated.
Fig. 1 is the external structure schematic diagram of outdoor unit of air conditioner of the present invention.
As shown in Figure 1, the off-premises station of air regulator of the present invention has formed the outward appearance part by the shell 10 of outside, and described shell 10 comprises front shell 11, back case 12 and top panel 13.Following and the base 15 of shell 10 combines.
Dispose net grid section 20 in the front shell 11, net grid section 20 joins front shell 11 to by the attaching parts (not shown).
Be provided with maintenance control panel 30 on one side of front shell 11, maintenance control panel 30 can repair or change the parts of off-premises station inside so easily can open the structure setting of covering.
The bottom of front shell 11 is provided with pipe arrangement lid 40, and pipe arrangement lid 40 is to be connected (with reference to 2) with the refrigerant pipe 65 of off-premises station inside for the coolant piping (not shown) with the outside.
Fig. 2 is outdoor unit of air conditioner internal structure schematic diagram.
As shown in Figure 2, off-premises station inside can cut off under baffle plate 50 effect be about two spaces, a side space is divided into up and down two spaces by isolation panel 89.The below is called it for convenience of description: the space that the space that the space that disposes compressor 61 grades is Machine Room 1, dispose control device 70 is switchgear house 2, be provided with fan 111 is plenum chamber 3.
Dispose compressor 61, separator 62, fluid reservoir 63 etc. in the Machine Room 1.Separator 62 is isolated from compressor 61 and is discharged the oil that comprises the refrigerant agent, is recycled to compressor 61.Fluid reservoir 63 provides gaseous coolant in the refrigerant agent of indoor set discharge to compressor 61.
Be fixed with analog bracket 64 in separator 62 outsides, be provided with the insert 51 that can embed analog bracket 64 at baffle plate 50.Analog bracket 64 is embedded in the insert 51, thereby can prevents that separator 62 is downward-sloping.
Compressor 61, separator 62 and fluid reservoir 63 are connected with refrigerant pipe 65, and refrigerant pipe 65 is connected with connection valve 66, in order to more easily be connected with the refrigerant pipe (not shown) of outside.Control device 70 downsides are provided with connection valve carriage 90, to be fixedly connected with valve 66.
Dispose control device 70 in the switchgear house 2, control device 70 is fixed on the fixed panel 81.Fixed panel 81 101 1 sides of outdoor heat converter as shown in Figure 1 on the plate 13 that are fixed in the above.At this moment, fixed panel 81 is bent to form from the backward front side shown in Figure 2 of baffle plate 50 prolongations.
Control device 70 comprises main PCB 71, exchanges PCB 72 and voltage stabilizing PCB 73.Main PCB 71 is controlled off-premises station and indoor set (not shown) on the whole.Interchange PCB 72 is converted to AC power supplies with the DC power supply of outside, changes voltage and frequency, controls thus the rotary speed of compressor electric motor (not shown), and voltage stabilizing PCB 73 prevents the wearing and tearing of compressor electric motor (not shown) coil.
Exchange PCB 72 and be fixed on the baffle plate 50, voltage stabilizing PCB 73 is fixed on the rear side of switchgear house 2,71 of main PCBs and voltage stabilizing PCB 73 corresponding being fixed.
Outdoor unit of air conditioner inside also is formed with switchgear house 2 and the outside suction passage portion 85 that is connected, and this suction passage portion 85 is explained.
Be formed with suction passage portion 85 between fixed panel 81 and the back case 12, said suction passage portion 85 roughly is here
Figure S2008100532224D00041
Type.
Be formed with air intake section 82 on the shell 12 in the back, be formed with interconnecting part 84 in the fixed panel 81.Air intake section 82 is formed at voltage stabilizing PCB 73 rear sides, interconnecting part 84 is formed between voltage stabilizing PCB 73 and the main PCB 71, thus, the extraneous air that sucks by air intake section 82 flows at voltage stabilizing PCB 73 rear sides, cool off simultaneously the rear side of voltage stabilizing PCB 73, afterwards, flow between voltage stabilizing PCB 73 and the main PCB 71 by interconnecting part 84.
Be formed with air discharge portion 55 on the baffle plate 50.Air discharge portion 55 is exchanging the formation of PCB 72 downsides in other words at the downside of control device 70.
Air discharge portion 55 and suction passage portion 85 roughly are diagonal and form.The distance that sucks between passage portion 85 and the air discharge portion 55 like this becomes distant, and the inlet air flow path of carrying out heat exchange with control device 70 becomes longer, thus, has improved the cooling effectiveness of control device 70.
Switchgear house 2 and plenum chamber 3 are connected by air discharge portion 55, so the impact of power because fan 111 is blown in switchgear house 2 and plenum chamber 3, its air pressure forces down than atmosphere.Thus, need not to arrange in addition cooling fan at switchgear house 2, just can cooling controller 70.
Dispose the radiating piece 57 that contacts with control device 70 in the plenum chamber 3.The frequency conversion PCB 72 that heating temp is the highest among radiating piece 57 and 3 PCB 71,72,73 is connected.Radiating piece 57 absorbs the heat of frequency conversion PCB 72 by carrying out heat exchange with the air that flows at plenum chamber 3.This radiating piece 57 disposes a plurality of heat exchange fins at above-below direction.Thus, plenum chamber 3 stream air flow at radiating piece 57 above-below directions, simultaneously absorbing heat.Described radiating piece 57 is fixed on the baffle plate 50.
Dispose outdoor heat converter 101 and air-supply arrangement 110 in the plenum chamber 3.Outdoor heat converter 101 is provided with the support bar 120 more than two or two nearby at least, is combined with one or more air-supply arrangement 110 at support bar 120.Air-supply arrangement 110 comprises fan 111 and fan electromotor 112.
Be formed with feet 121 in each support bar 120 lower end, be formed with the installation end 16 that feet 121 is installed at base 15, feet 121 can be moved at fore-and-aft direction.
The support bar 120 that above-below direction disposes side by side in plenum chamber 3, support bar 120 is combined with the motor department of assembly, and the motor department of assembly combines with fan electromotor 112.
Below, the present invention's operation is illustrated.
Fig. 2 is the internal structure schematic diagram of off-premises station shown in Figure 1; Fig. 3 is off-premises station control device Air fluidal texture schematic diagram shown in Figure 2.
Such as Fig. 2, shown in Figure 3, if driving air regulator, main PCB 71 control off-premises station and indoor set (not shown), control according to main PCB 71, the refrigerant of compression is sent to indoor set in the compressor 61, and the refrigerant that indoor set discharges is sent to separator 62 and compressor 61 again.
Interchange PCB 72 is converted to AC voltage with the dc voltage of outside approval, changes voltage and frequency.Frequency conversion PCB 72 changes voltage and the frequency that the compressor electric motor (not shown) is provided, and controls the rotary speed of compressor electric motor (not shown).This frequency conversion PCB 72 is because the direct outside dc voltage of approval, and is converted into AC voltage, so PCB 72 generates heat the highest among 3 PCB 71,72,73.
For instance, interchange PCB 72 roughly heating temp is 100-110 ℃, and voltage stabilizing PCB 73 heatings are approximately about 80 ℃, and main PCB 71 temperature are approximately 50 ℃.So, be provided with radiating piece 57 in the side as the highest interchange PCB 72 of heating.
The rotation of main PCB 71 control fans 111.Rotation by fan 111 will be through the air of outdoor heat converter 101, by net grid section 20 discharged to the outside.The pressure ratio atmosphere of plenum chamber 3 inside forces down.Particularly, the space pressure of outdoor heat converter 101 and fan 111 suction sides is lower than discharging side.
That is, during fan 111 work, the pressure of plenum chamber 3 compare with the pressure of switchgear house 2 descend many, the pressure at switchgear house 2 places compare with the pressure that sucks passage portion 85 places also descend many.Thus, can make extraneous air flow into to suck by air intake section 82 makes to passage portion 85.Suck flowing of passage portion 85 by extraneous air, reaching the purpose of cooling voltage stabilizing PCB 73.The extraneous air that sucks passage portion 85 of flowing through flows into switchgear house 2 inside by interconnecting part 84.In switchgear house 2, pass through flowing of extraneous air, all cool off 3 PCB 71,72,73.The air of switchgear house 2 flows into plenum chambers 3 by air discharge portion 55 after three PCB 71,72,73 are cooled off.
Be formed with the air-flow that is rotated by fan 111 outer circumference directions in the plenum chamber 3, this air-flow moves along radiating piece 57 above-below directions, absorbs simultaneously the heat of radiating piece 57.
The air that absorbs control device 70 and radiating piece 57 heats is discharged to the outside by net grid section 20.
Identical with the above, by prolonging the path of air amount, come cooling controller 70.
Under 35 ℃ of conditions of outdoor temperature, have in the off-premises station of cooling structure, measure the temperature results of control device with lower identical.
The temperature of frequency conversion PCB 72 approximately is reduced to 70 ℃, and the temperature of voltage stabilizing PCB 73 approximately is reduced to 40 ℃, and main PCB 71 approximately is reduced to 40 ℃.
By prolonging the path of air amount, come the reason of cooling controller 70 to be, cooling structure sucks extraneous air by the pressure differential of plenum chamber 3 and switchgear house 2, so than arranging in the situation of cooling fan in switchgear house 2 inside, increased the flow of air intake.That is, if when in switchgear house 2 cooling fan being set, the air of being discharged by cooling fan is because the setting of discharge portion has affected the mobile of air.Be subject to discharge portion to the impedance of Air Flow, the air intake flow is reduced relatively.On the contrary, the pressure differential by plenum chamber 3 and switchgear house 2 suck extraneous air the time, at switchgear house 2 because the phenomenon that Bas Discharged is obstructed can not occur, so the air intake flow also increases relatively.
In addition, frequency conversion PCB 72 is cooled off under cold air and radiating piece 57 effects, voltage stabilizing PCB 73 cools off in the both sides, front and back, identical therewith, the contact area and the time of contact that relatively are in the interchange PCB 72 of the condition of high temperature and voltage stabilizing PCB 73 and air all can increase, so the PCB 72 of high temperature, the more step reduction of 73 temperature, but cool off in the interchange PCB 72 of relatively-high temperature and voltage stabilizing PCB 73 concentrated areas.

Claims (5)

1. the off-premises station of an air regulator includes: divide the baffle plate (50) that is provided with the switchgear house (2) of control device (70) and is provided with the plenum chamber (3) of fan (111); It is characterized in that, also be formed with the suction passage portion (85) that the air in the switchgear house (2) is connected with extraneous air; For switchgear house (2) and plenum chamber (3) are connected, on baffle plate (50), also be formed with the air discharge portion (55) that the air that makes switchgear house (2) flows into plenum chamber (3); In plenum chamber (3), also be provided with the control device that is positioned at switchgear house (2) (70) and contact, and by carrying out the radiating piece (57) that heat exchange makes control device (70) heat radiation with the interior moving air of plenum chamber (3), described suction passage portion (85) is by being formed on for fixing voltage stabilizing PCB(73) fixed panel (81) on interconnecting part (84) make from voltage stabilizing PCB(73) the air inflow voltage stabilizing PCB(73 that sucks of rear side) and main PCB (71) between.
2. the off-premises station of air regulator according to claim 1 is characterized in that, described control device (70) includes: with the contacted frequency conversion PCB(72 of radiating piece (57)); Be fixed on the voltage stabilizing PCB(73 of switchgear house (2) rear side); And with voltage stabilizing PCB(73) main PCB (71) of corresponding setting.
3. the off-premises station of air regulator according to claim 1 is characterized in that, described air discharge portion (55) is formed on the downside of control device (70).
4. the off-premises station of air regulator according to claim 1 is characterized in that, also comprises a plurality of fin that carry out heat exchange setting up and down in the described radiating piece (57).
5. the off-premises station of air regulator according to claim 1 is characterized in that, described suction passage portion (85) and air discharge portion (55) are cornerwise direction setting.
CN2008100532224A 2008-05-23 2008-05-23 Outdoor machine of air conditioner Expired - Fee Related CN101586844B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103732993B (en) * 2011-07-07 2016-08-17 东芝开利株式会社 The outdoor unit of refrigerating circulatory device
JP6120209B2 (en) * 2012-12-28 2017-04-26 パナソニックＩｐマネジメント株式会社 Outdoor unit
US10731875B2 (en) * 2016-05-12 2020-08-04 Mitsubishi Electric Corporation Outdoor unit of air-conditioning apparatus
US11339977B2 (en) 2019-09-06 2022-05-24 Carrier Corporation Apparatus and method for providing adequate cooling inside an electrical equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1143733A (en) * 1995-08-22 1997-02-26 株式会社东芝 Outdoor assembling unit for air-conditioner
CN2781253Y (en) * 2002-02-19 2006-05-17 大金工业株式会社 Electric auxiliary unit container for outdoor unit and outdoor unit of air conditioner
CN1793745A (en) * 2004-12-24 2006-06-28 东芝开利株式会社 Outdoor unit of air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010056511A (en) * 1999-12-15 2001-07-04 구자홍 Cooling Design for PCB and Compressor Applied to Inverter Heat pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1143733A (en) * 1995-08-22 1997-02-26 株式会社东芝 Outdoor assembling unit for air-conditioner
CN2781253Y (en) * 2002-02-19 2006-05-17 大金工业株式会社 Electric auxiliary unit container for outdoor unit and outdoor unit of air conditioner
CN1793745A (en) * 2004-12-24 2006-06-28 东芝开利株式会社 Outdoor unit of air conditioner

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