CN1165713C - Indoor unit for air conditioner - Google Patents
Indoor unit for air conditioner Download PDFInfo
- Publication number
- CN1165713C CN1165713C CNB001221450A CN00122145A CN1165713C CN 1165713 C CN1165713 C CN 1165713C CN B001221450 A CNB001221450 A CN B001221450A CN 00122145 A CN00122145 A CN 00122145A CN 1165713 C CN1165713 C CN 1165713C
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- Prior art keywords
- heat exchanger
- air conditioner
- cold
- air
- producing medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
This invention provides an indoor unit for an air conditioner capable of improving a heat exchanging performance by effectively utilizing a site having a fastest wind velocity. The indoor unit for an air conditioner comprises a unit body 1 having suction ports 12a, 12 and an air outlet 9 under the ports 12a, 12 at a front panel 2, a main heat exchanger 50A disposed oppositely to the ports and a blower 1 disposed at a rear side of the exchanger 50a in the body, a drain pan 6a disposed under the exchanger 50A, and an auxiliary heat exchanger 50B disposed at a lower front surface side of the exchanger 50A directly above the exchanger 50A to cool a refrigerant to a supercooled state in a dehumidifying operation mode.
Description
Technical field
The present invention relates to a kind of indoor machine of air conditioner group, described indoor machine of air conditioner group comprises the indoor heat exchanger of being made up of main heat exchanger and supplementary heat exchanger.
Background technology
The indoor machine of air conditioner group is a subtend and put heat exchanger and pressure fan in this unit main frame, by the work of pressure fan, the room air guiding heat exchanger that sucks in the unit main frame is carried out heat exchange, then, blows out to indoor.
In the past, above-mentioned heat exchanger was a tabular, and with the vertical setting.After, be obliquely installed in order to reduce the height dimension in the unit main frame.Follow again, again described heat exchanger is configured as roughly the setting that is " ㄑ " word shape.In recent years, in order to obtain bigger thermal capacity, use its side-glance shape more for roughly falling the heat exchanger of " V " word shape.
Yet the above-mentioned heat exchanger that roughly is down " V " word shape is made of front side heat exchanger portion and rear side heat exchanger portion.But because the top dead-space volume that forms triangular shape with respect to the back side of the top of rear side heat exchanger portion and unit main frame.Therefore, be provided with the supplementary heat exchanger of little thermal capacity at this place, and it is connected with rear side heat exchanger portion.
In addition, be not only simple heat exchange action, above-mentioned heat exchanger also provides the indoor units with air purifying function.This air cleaner vicinity is arranged at front side heat exchanger portion front, purifies after a part of room air that sucks in the unit main frame, with its guiding front side heat exchanger portion.
The common structure of front side heat exchanger portion that roughly is down " V " word shape is, bending forming, and front one side on its top is provided with air cleaner, and front, its underpart one side is provided with filter.
After room air is inhaled in the unit main frame, carry out heat exchange with the front, bottom of front side heat exchanger portion particularly immediately with clashing.That is, the front, bottom of this front side heat exchanger portion is the position of wind speed maximum, and here, the heat exchange between heat exchange air and the cold-producing medium can more effectively be carried out than other position.
Yet the bottom in above-mentioned front side heat exchanger portion is not provided with any facility except that filter.So the problem of its existence is: though the higher heat exchange position that is efficient, this position,, this position is not effectively utilized.
The present invention system In view of the foregoing does.The objective of the invention is to: a kind of indoor machine of air conditioner group is provided, and described indoor machine of air conditioner group can effectively utilize the maximum position of wind speed in the heat exchanger, improves the heat exchange performance of heat exchanger.
Summary of the invention
For achieving the above object, indoor machine of air conditioner group of the present invention is characterised in that as technical scheme 1, described indoor units comprises: at its front panel air intake is set, is provided with the unit main frame of air outlet below it, in this unit main frame with described air intake subtend main heat exchanger of putting and the pressure fan that is arranged at this main heat exchanger rear, be arranged at the drain pan of described main heat exchanger below, and adjacent this drain pan top, be arranged at the bottom front face side of main heat exchanger, under dehumidifying operation mode state, cold-producing medium remained in the supplementary heat exchanger of supercooling state.
The present invention is characterised in that as technical scheme 2: constitute the freeze cycle loop in technical scheme 1 described indoor machine of air conditioner group, make when the cooling operation pattern, cold-producing medium was imported in the supplementary heat exchanger earlier before being imported into main heat exchanger.
The present invention is characterised in that as technical scheme 3: in technical scheme 2 described indoor machine of air conditioner groups, the upstream side of the supplementary heat exchanger under cooling operation pattern and dehumidification mode is provided with the cold-producing medium throttling arrangement, and this cold-producing medium throttling arrangement is implemented bigger throttling under dehumidification mode than under the cooling operation pattern.
The present invention is characterised in that as technical scheme 4: in technical scheme 1 described indoor machine of air conditioner group, between main heat exchanger and supplementary heat exchanger, clamp the cold-producing medium throttling arrangement, by this auxiliary refrigerant throttling arrangement, cold-producing medium stream by the auxiliary refrigerant throttling arrangement is having under the dehumidification mode of heating effect by throttling, so that main heat exchanger plays the effect of condensing, and supplementary heat exchanger plays the effect of cooling.
The present invention is characterised in that as technical scheme 5: in technical scheme 1 described indoor machine of air conditioner group, front face side at main heat exchanger, and position on supplementary heat exchanger, air cleaner is set, described air cleaner has handle portion in its underpart side, be provided with in the front face side of the main heat exchanger of described unit main frame and can load and unload the fixture of fixed air cleaner freely, described fixture has such structure: by side in front of described handle portion is pulled to, make set air cleaner main body become lateral attitude; Move downwards by described handle portion is moved again, unload described air cleaner.
For reaching described purpose, indoor machine of air conditioner group of the present invention is characterised in that as technical scheme 6, described indoor units comprises: plate is provided with air intake in front, below this air intake, be provided with the unit main frame of air outlet, in this unit main frame, put with described air intake subtend, its side-looking roughly is down the main heat exchanger of " V " word shape formation and is arranged at this main heat exchanger pressure fan nearby, be arranged at the preceding drain pan and the back drain pan of this main heat exchanger lower front and lower rear, reach and be arranged at the bottom front face side of main heat exchanger front portion and the upper face side at rear portion thereof respectively, under dehumidifying operation mode state, cold-producing medium is remained in a pair of supplementary heat exchanger of supercooling state.
The present invention is characterised in that as technical scheme 7: constitute the freeze cycle loop in technical scheme 6 described indoor machine of air conditioner groups, make when the cooling operation pattern, cold-producing medium was imported in the supplementary heat exchanger earlier before being imported into main heat exchanger.
The present invention is characterised in that as technical scheme 8: in technical scheme 7 described indoor machine of air conditioner groups, the upstream side of the supplementary heat exchanger under the cooling operation pattern is provided with the cold-producing medium throttling arrangement, this cold-producing medium throttling arrangement the dehumidifying operation mode under than under the cooling operation pattern, carrying out bigger throttling.
By the means that adopt to solve above-mentioned problem, in the bottom front face side of the maximum wind velocity that constitutes main heat exchanger supplementary heat exchanger is set, under the dehumidifying operation mode, supplementary heat exchanger as dehumidification heat exchange, can be obtained moisture removal in a large number, improve its wet-out property.And, can not flow to main heat exchanger dripping of supplementary heat exchanger generation, but directly flow to drain pan, prevent its evaporation again at main heat exchanger.
Description of drawings
Fig. 1 is the cutaway view of the indoor machine of air conditioner group in the example of the present invention.
Fig. 2 is the structure chart in the freeze cycle loop in the above-mentioned example.
When Fig. 3 is the indoor units that shows in the above-mentioned example, the schematic diagram of its flow of refrigerant is described.
Fig. 4 is the structure chart in the freeze cycle loop in the above-mentioned example.
Fig. 5 is the key diagram of the charge and discharge operations of the air cleaner in the above-mentioned example of explanation.
When Fig. 6 is the indoor units that shows in the above-mentioned example, the schematic diagram of its flow of refrigerant is described.
Among the figure, 1 is the unit main frame, and 5 is indoor heat exchanger, and 7 is indoor blower, and 50A is a main heat exchanger, and 6a is preceding drain pan, and 6b is the back drain pan, and 50B is a supplementary heat exchanger, and 23 is electric expansion valve, and 40 is fixed mechanism.
The specific embodiment
Below, with reference to accompanying drawing, example of the present invention is described.
As shown in Figure 1, constituted the indoor machine of air conditioner group.
Unit main frame 1 is by front panel 2, top panel 3 and two sidepieces, back side portion and the whole back plate 4 that constitutes of bottom surface sections work of described indoor units are constituted, and described unit main frame is the case shape of growing crosswise.
In unit main frame 1, be provided with its side-looking for roughly falling the indoor heat exchanger 5 of " V " word shape.In this indoor heat exchanger 5, many pieces of heat exchange fin f put mutually side by side with narrow and small gap, run through being provided with the heat exchanging pipe p that forms refrigerant flow path on these fins f.
Do an explanation with regard to above-mentioned indoor heat exchanger 5 again.Described heat exchanger 5 is made of main heat exchanger 50A and supplementary heat exchanger 50B.Above-mentioned main heat exchanger 50A is made of 5a of front side heat exchanger portion that is positioned at front face side and the rear side heat exchanger 5b of portion that is positioned at rear side.The 5c of front side supplementary heat exchanger portion that supplementary heat exchanger 50B is provided with by the bottom front face side of the 5a of adjacency front side heat exchanger portion and, the rear side supplementary heat exchanger 5d of portion that is provided with above the rear side heat exchanger 5b of portion constitutes.
Drain pan 6a before the bottom of adjacent front side 5a of heat exchanger portion and the front side supplementary heat exchanger 5c of portion is provided with has drain pan 6b after the bottom of the adjacent rear side heat exchanger 5b of portion is provided with.Drain pan 6a, the 6b of described front and back is arranged on the plate 4 of back with being integral.
Between front side 5a of heat exchanger portion and the rear side heat exchanger 5b of portion, be provided with indoor blower 7 with circulation heat-exchange fin at the interior location of above-mentioned indoor heat exchanger 5.Back plate 4 is bent to form in whole bottom surface sections from the back side one side of the indoor blower 7 of drain pan 6b bottom, conduct back.Before described, be formed with air delivery duct 8 between the lower part of drain pan 6a and the prolongation thereof.
In the bottom of the front panel 2 that constitutes above-mentioned air delivery duct 8 front ends, and broad ways is provided with air outlet 9.Though do not show among the figure, be assembled with the louver of many pieces of vertical, horizontal respectively on this air outlet 9, and be provided with the wind direction guide part that can change the wind direction that blows out from air outlet 9 automatically.
On the other hand, embed the grid that the frame-like of forming is arranged on above-mentioned top panel 3, its spatial portion forms upper air inlet 11.The cross section of described front panel 2 forms R word shape, and two sections that cross over the upper and lower are provided with structure different anterior air intake 12a, 12b.
In the anterior air intake 12a subtend of above-mentioned front panel 2 and the position of putting, the position approaching with the front face side top of the front side heat exchanger 5a of portion is provided with air cleaner 13.This air cleaner 13 by the electric cleaner that is used to remove the Egyptian steam of room dust and the high performance filter of deodorizing that is used to remove the Alveolate activated carbon capable structure of indoor foul smell constitute.Described two members are set up in parallel about doing with the fixed structure 40 of fixation means as described below.
To having the indoor machine of air conditioner group of said structure, push the start button on the remote controller not shown in the figures, the then freeze cycle of entry into service indoor heat exchanger 5, and driving indoor blower 7.
Room air is inhaled in the unit main frame 1 from the front panel 2 of unit main frame 1 and air intake 12a, the 12b, 11 of top panel 3.Particularly, the room air that sucks from anterior air intake 12a is before this by air cleaner 13, and elimination is contained in the impurity of dust in the room air and steam etc., and after being cleaned, guiding indoor heat exchanger 5 carries out heat exchange.
The room air that anterior air intake 12b and upper air inlet 11 suck directly is directed to indoor heat exchanger 5 and carries out heat exchange, with the air interflow of the part of flow through air cleaner 13 and indoor heat exchanger 5 after, by indoor blower 7, be directed to ventilating duct 8, blow out to the interior space from air outlet 9.
The basic structure of indoor machine of air conditioner group of the present invention and effect is characterized in that as described below, indoor heat exchanger 5 is made of main heat exchanger 50A and supplementary heat exchanger 50B as mentioned above.
Fig. 2 has shown the freeze cycle loop of air conditioner.On the above-mentioned indoor units,, be provided with the indoor heat exchanger 5 that is constituted by main heat exchanger 50A that is connected in series each other and supplementary heat exchanger 50B as previous illustrated ground.
On indoor heat exchanger 5, be installed on compressor 20 Hes in the outdoor unit not shown in the figures, the electric expansion valve 23 of cross valve 21, outdoor heat exchanger 22, formation cold-producing medium throttling arrangement connects by refrigerant tubing 24, constitutes the heat-pump-type freeze cycle.
Above-mentioned compressor 20 and cross valve 21 and electric expansion valve 23 are connected on the control device 25 control by control device 25, can be respectively the switching of four valve ports of the operating frequency of compressor 20, cross valve 21 and the amount of restriction of electric expansion valve 23 be controlled.
Hollow arrow has as shown in Figure 2 shown flowing at the cold-producing medium of dehumidifying in the operation mode.That is, the refrigerant gas of the HTHP that extrudes from compressor 20 is by cross valve 21, and guide chamber external heat exchanger 22 condenses, liquefies.The state of the hatching line symbolic representation refrigerant gas liquefaction on the outdoor heat exchanger 22 of this figure.
The liquefied refrigerant that comes out from outdoor heat exchanger 22 at electric expansion valve 23 by a large amount of throttlings, decompression, here, control device 25 is being controlled electric expansion valve 23, makes its amount of restriction be far longer than following cooling operation pattern.
Liquefied refrigerant constitutes the supplementary heat exchanger 50B of indoor heat exchanger 5 from electric expansion valve 23 guiding.Because the throttling significantly of the flow of cold-producing medium quilt, so, i.e. evaporation fully in the way of supplementary heat exchanger 50B of flowing through.Cold-producing medium becomes the supercooling state, plays cooling effect thus.Supplementary heat exchanger 50B becomes utmost point low temperature.
The cold-producing medium of evaporation is directed to main heat exchanger 50A fully in supplementary heat exchanger 50B, and here, cold-producing medium becomes so-called superthermal state and circulates, and is inhaled into compressor 20 through cross valve 21, carries out the circulation as above-mentioned approach once more.
Show as Fig. 3 pattern,, also can concentrate the bottom front face side that is arranged at as the main heat exchanger 50A at the position of maximum wind velocity as supplementary heat exchanger 50B.Therefore, when the cold-producing medium that supplementary heat exchanger 50B carries out heat exchange became the supercooling state, room air was by supplementary heat exchanger 50B institute cooling and dehumidifying fully.
Again, at main heat exchanger 50A, cold-producing medium becomes after the superthermal state, and the room air dehumidifying that in a single day is cooled then is heated.When going out main heat exchanger 50A, room air rises to room temperature, from air outlet 9 to indoor air-supply.Thus, form the effective exsiccation of the interior space.
Promptly, descend in order to restrain the room temperature that causes by sensible heat, improve the dehumidification rate of latent heat, supplementary heat exchanger 50B is used as dehumidification heat exchange, as superthermal amount,, make above-mentioned value keep certain the difference of the inlet temperature of indoor heat exchanger 5 and medium temperature by control device 25 control electric expansion valves 23, thus, make cold-producing medium finish evaporation at described dehumidification heat exchange 50B.
In addition, set the position of the relative main heat exchanger 50A of supplementary heat exchanger 50B, by this, make the temperature of supplementary heat exchanger 50B become the low temperature of the indoor heat exchanger temperature under the dehumidifying operation mode that is lower than in the past, append latent heat.Cold-producing medium is finished evaporation reliably at supplementary heat exchanger 50B, when being directed to main heat exchanger 50A, and the not decline of occurrence temperature.Thus, the air themperature that blows out from air outlet 9 rises to the state near room temperature, and sensible heat reduces, and can carry out high efficiency dehumidifying running.
Again, needn't change the size of unit main frame 1, in the thermal capacity that increases indoor heat exchanger 5, when can improve rate of heat exchange and heat exchange performance, the wind speed profile of the room air of the feasible indoor heat exchanger 5 of flowing through evenly, is smoothly restrained the generation of air-supply noise, can quietly move.
Have, the 50c of front side supplementary heat exchanger portion that constitutes supplementary heat exchanger 50B is arranged at the top of adjacent preceding drain pan 6a again, the 5a of front side heat exchanger portion of formation main heat exchanger 50A that can not flow through that drips that generates here, but flow down preceding drain pan 6.Therefore, can prevent dripping once again evaporation on the 5a of front side heat exchanger portion.
Also can constitute freeze cycle loop as shown in Figure 4.Between the supplementary heat exchanger 50B and main heat exchanger 50A that constitute indoor heat exchanger 5, the auxiliary electron expansion valve 30 of auxiliary refrigerant throttling arrangement is installed.Again, as previous illustrated ground, installing between outdoor heat exchanger 22 and supplementary heat exchanger 50B that electric expansion valve 23 as the cold-producing medium throttling arrangement do not have yet can not.
In the occasion of specifying the dehumidifying operation mode, control device not shown in the figures switches to the valve port of cross valve 21 and heats the operation mode direction.The refrigerant gas that compressor 20 is emitted is by direction of arrow circulation among the figure.
Simultaneously, control device only carries out the throttling of ormal weight to auxiliary electron expansion valve 30, and described electric expansion valve 23 almost is in open state.Refrigerant gas is directed to main heat exchanger 50A by cross valve 21, the liquefaction of condensing, and by throttling, the supplementary heat exchanger 50B that leads again evaporation then, via electric expansion valve 23 and outdoor heat exchanger 22, is inhaled into compressor 20 by auxiliary electron expansion valve 30.
On the other hand, the room air that sucks in the unit main frame 1 carries out after the heat exchange with the supplementary heat exchanger 50B that is positioned at upstream side, and the evaporation latent heat of cold-producing medium is captured, and thereafter, carries out heat exchange with main heat exchanger 50A, the heat of condensation of absorption refrigeration agent.
That is, supplementary heat exchanger 50B has played cooling and dehumidifying to room air, and main heat exchanger has played heat effect again to room air, by this, can carry out the dehumidifying running of high efficiency band point heating effect.
Shown in Fig. 5 (A), (B), be on the front face side of the bottom of main heat exchanger 50A, supplementary heat exchanger 50B to be installed, the position is equipped with the unit main frame 1 of air cleaner 13 above it, and the front face side of main heat exchanger 50A is provided with can load and unload the said fixing mechanism (fixture) 40 of fixed air cleaner 13 freely.
Said fixing mechanism 40 is by being arranged at adjacent supplementary heat exchanger 50B top, the cross section retainer 41 for " コ " word shape, with be positioned at this retainer 41 tops, the cross section that almost is arranged at main heat exchanger 50A topmost front face side is formed by the curved guide frame 42 of " コ " word shape roughly.
Above-mentioned retainer 41 and leading truck 42 be arranged in couples respectively with air cleaner 13 about two side subtends and on the position of putting.The front face side of retainer 41 is open, and the below of leading truck 42 is open.This leading truck 42 constitutes the sheet portion than retainer 41 length, and towards the open end, sheet portion distance each other enlarges gradually from curved end.On the other hand, the upper side of air cleaner 13 is for playing the 13a of air cleaner portion of air cleaning effect in fact, and its underpart side is handle portion 13b.At the left and right sides two side faces of this 13a of air cleaner portion and handle portion 13b, be respectively arranged with two a pair of pin portions 43,44.
Shown in Fig. 5 (A), why air cleaner 13 is fixed in main heat exchanger 50A face before, and this is because the pin portion 44 of handle portion 1 3b embeds in the retainers 41, and the pin portion 43 of the 13a of air cleaner portion is in the state of the complications end that embeds leading truck 42.
Keeping in repair when unloading air cleaner 13, open above-mentioned front panel 2 is in front of handle portion 13b is drawn out to.The pin portion 44 of handle portion 13b becomes the free state that breaks away from retainer 41, and air cleaner 13 self becomes lateral attitude.
Directly with air cleaner 13 deflection belows, then shown in the imaginary line among Fig. 5 (B), the pin portion 43 of the 13a of air cleaner portion is positioned at the almost openend of leading truck 42, and air cleaner 13 can be deviate from from fixed mechanism 40.At this moment, because air cleaner 13 becomes lateral attitude, do not disturb with the supplementary heat exchanger 50B of its underpart.
After the maintenance, when being installed on air cleaner 13 on the fixed mechanism 40, at first air cleaner 13 is made the state that extremely tilts, shown in Fig. 5 (B) solid line.Then, with the pin portion 43 insertion leading trucks 42 of air cleaner 13a, directly air cleaner 13 is carried upward.
Shown in the imaginary line among this figure, when the pin portion 43 of the 13a of air cleaner portion is connected to the complications end of leading truck 42, handle portion 13b is compressed one side to main heat exchanger 50A.The pin portion 44 of handle portion 13b embeds retainer 41, constitutes installing and fixing air cleaner 13.At this moment, air cleaner 13 does not disturb supplementary heat exchanger 50B, so its loading and unloading performance is good.
Fig. 6 has roughly shown previous indoor units illustrated in fig. 1, particularly, specifically understands the piping system of indoor heat exchanger 5.Indoor heat exchanger 5 and element structure in addition thereof go for the illustrated structure of previous Fig. 1, so, these members are marked with same-sign, and the repetitive description thereof will be omitted.
In indoor heat exchanger 5, the 5c of front and back side supplementary heat exchanger portion, 5d are connected in series mutually, and the 5a of front and back side heat exchanger portion, 5b also are connected in series mutually.And supplementary heat exchanger 50B and main heat exchanger 50A then also are connected in series mutually.The upstream side of the indoor heat exchanger 5 under dehumidifying operation mode and cooling operation pattern is provided with the electric expansion valve 23 as the cold-producing medium throttling arrangement.
Be described in detail in flowing of cold-producing medium under the dehumidifying, cooling operation pattern of above-mentioned indoor heat exchanger 5.Cold-producing medium enters rear side supplementary heat exchanger 5d from electric expansion valve 23, after the outflow heat exchanger 5d, leaps up into front side supplementary heat exchanger 5c.Then, after cold-producing medium is directed to front side heat exchanger 5a, to the upper end, enter the rear side heat exchanger 5b of portion from the bottom of prostatitis side.At the rear side heat exchanger 5b of portion, the upper end from the rank rear side is directed to the bottom again, becomes U word shape to return side upper end, prostatitis again, then, flows to once again and flows out outside to the rank rear side bottom of the front side heat exchanger 5a of portion.
When the dehumidifying operation mode, cold-producing medium via supplementary heat exchanger 50B, is directed to the 5c of front side supplementary heat exchanger portion from the rear side supplementary heat exchanger 5d of portion, becomes the supercooling state by the setting of electric expansion valve 23 amount of restriction.Have, cold-producing medium via main heat exchanger 50A, is directed to the rear side supplementary heat exchanger 5b of portion from the front side heat exchanger 5a of portion, becomes superthermal state again.Thus, the room air of suction unit main frame 1 is sent to indoor after can being dehumidified effectively again.
When the cooling operation pattern, owing to constituted the freeze cycle loop, make cold-producing medium before being directed to main heat exchanger 50A, be directed to supplementary heat exchanger 50B earlier, thus, can increase the cooling effect of supplementary heat exchanger 50B.Can improve refrigeration.
Have again, be arranged at the electric expansion valve 23 of supplementary heat exchanger 50B upstream side, ratio quilt bigger ground throttling under the cooling operation pattern under the dehumidifying operation mode, thus, make it only is to finish evaporation on the supplementary heat exchanger 50B, main heat exchanger 50A becomes superthermal state, and the temperature on the main heat exchanger 50A becomes near room temperature.For this reason, on supplementary heat exchanger 50B, the air behind the cooling and dehumidifying is heated at main heat exchanger 50A, sends to the interior space, and limit in minimum is restrained in the reduction of room temperature.
As mentioned above,, supplementary heat exchanger is arranged at the bottom front face side of wind speed maximum in the main heat exchanger, by this, under the dehumidifying operating condition, supplementary heat exchanger can be strengthened moisture removal as dehumidification heat exchange especially, improve wet-out property according to the present invention.And dripping of being generated on the supplementary heat exchanger can not flow to main heat exchanger, but directly runs underneath to drain pan, and the evaporation again at main heat exchanger of can preventing to drip obtains to improve the effect of heat exchange property.
Claims (8)
1. an indoor machine of air conditioner group is characterized in that, described indoor units comprises:
At its front panel air intake is set, is provided with the unit main frame of air outlet below it,
In this unit main frame with described air intake subtend main heat exchanger of putting and the pressure fan that is arranged at this main heat exchanger rear,
Be arranged at the drain pan of described main heat exchanger below, and
Adjacent this drain pan top, be arranged at main heat exchanger the bottom front face side, under the dehumidifying operating condition, cold-producing medium is remained in the supplementary heat exchanger of supercooling state.
2. indoor machine of air conditioner group as claimed in claim 1 is characterized in that,
Constitute the freeze cycle loop in described indoor machine of air conditioner group, make when the cooling operation pattern, cold-producing medium was imported in the supplementary heat exchanger earlier before being imported into main heat exchanger.
3. indoor machine of air conditioner group as claimed in claim 2 is characterized in that,
In described indoor machine of air conditioner group, the upstream side of the supplementary heat exchanger under cooling operation pattern and dehumidification mode is provided with the cold-producing medium throttling arrangement,
This cold-producing medium throttling arrangement is realized bigger throttling under dehumidification mode than under the cooling operation pattern.
4. indoor machine of air conditioner group as claimed in claim 1 is characterized in that,
In described indoor machine of air conditioner group, between main heat exchanger and supplementary heat exchanger, clamp the auxiliary refrigerant throttling arrangement,
By this auxiliary refrigerant throttling arrangement, the cold-producing medium stream by the auxiliary refrigerant throttling arrangement is having under the dehumidification mode of heating effect by throttling, so that main heat exchanger plays the effect of condensing, and supplementary heat exchanger plays the effect of cooling.
5. indoor machine of air conditioner group as claimed in claim 1 is characterized in that,
In the front face side of described main heat exchanger, and the position is provided with air cleaner on described supplementary heat exchanger, and described air cleaner has handle portion in its underpart side,
Be provided with in the front face side of the main heat exchanger of described unit main frame and can load and unload the fixture of fixed air cleaner freely, described fixture has such structure: by side in front of described handle portion is pulled to, make set air cleaner main body become lateral attitude; Move downwards by described handle portion is moved again, unload described air cleaner.
6. an indoor machine of air conditioner group is characterized in that, described indoor units comprises:
Plate is provided with air intake, is provided with the unit main frame of air outlet below this air intake in front,
In this unit main frame, put with described air intake subtend, its side-looking roughly is down the main heat exchanger that " V " word shape forms and is arranged at this main heat exchanger pressure fan nearby,
Be arranged at the preceding drain pan and the back drain pan of this main heat exchanger lower front and lower rear, and
Be arranged at the upper face side at the bottom front face side of main heat exchanger front portion and rear portion thereof respectively, under the dehumidifying operating condition, cold-producing medium is remained in a pair of supplementary heat exchanger of supercooling state.
7. indoor machine of air conditioner group as claimed in claim 6 is characterized in that,
Constitute the freeze cycle loop in described indoor machine of air conditioner group, make when the cooling operation pattern, cold-producing medium was imported in the supplementary heat exchanger earlier before being imported into main heat exchanger.
8. indoor machine of air conditioner group as claimed in claim 7 is characterized in that,
The upstream side of the supplementary heat exchanger under the cooling operation pattern is provided with the cold-producing medium throttling arrangement, this cold-producing medium throttling arrangement the dehumidifying operation mode under than under the cooling operation pattern, carrying out bigger throttling.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25593799A JP4312894B2 (en) | 1999-09-09 | 1999-09-09 | Air conditioner indoor unit |
| JP255937/1999 | 1999-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1288132A CN1288132A (en) | 2001-03-21 |
| CN1165713C true CN1165713C (en) | 2004-09-08 |
Family
ID=17285653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001221450A Expired - Fee Related CN1165713C (en) | 1999-09-09 | 2000-07-28 | Indoor unit for air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4312894B2 (en) |
| KR (1) | KR100367747B1 (en) |
| CN (1) | CN1165713C (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4495369B2 (en) * | 2001-08-28 | 2010-07-07 | 東芝キヤリア株式会社 | Air conditioner |
| JP4341233B2 (en) * | 2002-12-02 | 2009-10-07 | ダイキン工業株式会社 | Air conditioner indoor unit |
| KR101356486B1 (en) * | 2007-01-26 | 2014-01-29 | 엘지전자 주식회사 | Air conditioner |
| JP5315957B2 (en) * | 2008-11-28 | 2013-10-16 | ダイキン工業株式会社 | Refrigeration equipment |
| JP5805579B2 (en) * | 2012-04-16 | 2015-11-04 | ダイキン工業株式会社 | Air conditioner |
| JP5749210B2 (en) * | 2012-04-16 | 2015-07-15 | ダイキン工業株式会社 | Air conditioner |
| JP5533926B2 (en) * | 2012-04-16 | 2014-06-25 | ダイキン工業株式会社 | Air conditioner |
| JP5310904B1 (en) * | 2012-04-16 | 2013-10-09 | ダイキン工業株式会社 | Air conditioner |
| JP5316668B1 (en) * | 2012-04-16 | 2013-10-16 | ダイキン工業株式会社 | Air conditioner |
| JP5935167B2 (en) * | 2012-07-20 | 2016-06-15 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Air conditioner |
| JP6044238B2 (en) * | 2012-09-28 | 2016-12-14 | ダイキン工業株式会社 | Air conditioner |
| CN103900154B (en) * | 2012-12-28 | 2019-05-10 | 松下电器产业株式会社 | Air regulator |
| JP6070624B2 (en) * | 2014-05-07 | 2017-02-01 | ダイキン工業株式会社 | Air conditioner |
| CN107477682B (en) * | 2017-08-28 | 2020-05-19 | 广东美的暖通设备有限公司 | Air conditioning system, indoor unit and control method thereof |
| US11820933B2 (en) | 2017-12-18 | 2023-11-21 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| US11493244B2 (en) | 2017-12-18 | 2022-11-08 | Daikin Industries, Ltd. | Air-conditioning unit |
| EP3730593A4 (en) | 2017-12-18 | 2021-10-27 | Daikin Industries, Ltd. | Refrigeration machine oil for refrigerant or refrigerant composition, method for using refrigeration machine oil, and use of refrigeration machine oil |
| US20200385622A1 (en) | 2017-12-18 | 2020-12-10 | Daikin Industries, Ltd. | Composition comprising refrigerant, use thereof, refrigerating machine having same, and method for operating said refrigerating machine |
| US11435118B2 (en) | 2017-12-18 | 2022-09-06 | Daikin Industries, Ltd. | Heat source unit and refrigeration cycle apparatus |
| US11549041B2 (en) | 2017-12-18 | 2023-01-10 | Daikin Industries, Ltd. | Composition containing refrigerant, use of said composition, refrigerator having said composition, and method for operating said refrigerator |
| US11441802B2 (en) | 2017-12-18 | 2022-09-13 | Daikin Industries, Ltd. | Air conditioning apparatus |
| WO2019124140A1 (en) * | 2017-12-18 | 2019-06-27 | ダイキン工業株式会社 | Refrigeration cycle device |
| US11906207B2 (en) | 2017-12-18 | 2024-02-20 | Daikin Industries, Ltd. | Refrigeration apparatus |
| US11506425B2 (en) | 2017-12-18 | 2022-11-22 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| US11441819B2 (en) | 2017-12-18 | 2022-09-13 | Daikin Industries, Ltd. | Refrigeration cycle apparatus |
| US11549695B2 (en) | 2017-12-18 | 2023-01-10 | Daikin Industries, Ltd. | Heat exchange unit |
| US11365335B2 (en) | 2017-12-18 | 2022-06-21 | Daikin Industries, Ltd. | Composition comprising refrigerant, use thereof, refrigerating machine having same, and method for operating said refrigerating machine |
| CN108548224A (en) * | 2018-05-17 | 2018-09-18 | 浙江理工大学 | Fan-coil device |
| CN113483406B (en) * | 2021-06-29 | 2022-09-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit, air conditioner and control method for air supply of air conditioner in partition mode |
-
1999
- 1999-09-09 JP JP25593799A patent/JP4312894B2/en not_active Expired - Fee Related
-
2000
- 2000-07-20 KR KR10-2000-0041560A patent/KR100367747B1/en not_active IP Right Cessation
- 2000-07-28 CN CNB001221450A patent/CN1165713C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001082755A (en) | 2001-03-30 |
| KR100367747B1 (en) | 2003-01-10 |
| KR20010029975A (en) | 2001-04-16 |
| CN1288132A (en) | 2001-03-21 |
| JP4312894B2 (en) | 2009-08-12 |
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| C06 | Publication | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040908 Termination date: 20100728 |