CN1322281C - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
- Publication number
- CN1322281C CN1322281C CNB2004100452452A CN200410045245A CN1322281C CN 1322281 C CN1322281 C CN 1322281C CN B2004100452452 A CNB2004100452452 A CN B2004100452452A CN 200410045245 A CN200410045245 A CN 200410045245A CN 1322281 C CN1322281 C CN 1322281C
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- China
- Prior art keywords
- heat exchanger
- refrigerant pipe
- main heat
- pipe arrangement
- secondary unit
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- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Provided is an indoor unit for an air conditioner capable of improving the heat exchanging efficiency at low cost while securing the maximum discharged-air volume. This indoor machine for the air conditioner comprises a main heat exchanger 11 placed approximately in the truncated chevron shape, auxiliary heat exchangers 11 mounted at both sides in a state of holding the main heat exchanger therebetween, and a blower 7 mounted at both sides in a state of holding the main heat exchanger and the auxiliary heat exchangers therebetween. The air is sucked from a lower side of the main heat exchanger by the blower, and blown out downward after successively passed through the main heat exchanger and the auxiliary heat exchangers. A refrigerant pipe 17 of the main heat exchanger is placed on both of upper and lower halves of the indoor main body 1, and a refrigerant pipe 22 of the auxiliary heat exchanger is placed on an area of the upper half of the indoor main body.
Description
Technical field
The present invention relates to comprise the indoor set of the aircondition of heat exchanger and air blast.
Background technology
The indoor set of the aircondition of prior art for example is documented in patent document 1 and 2 etc., and heat exchanger becomes roughly that Eight characters shape is configured in both sides.And the heat exchanger of the indoor set of the aircondition in the patent document 1 respectively disposes one in both sides.In addition, the heat exchanger of the indoor set of the aircondition of patent document 2 is two of both sides difference overlay configuration.
Patent document 1: special fair 6-39911 communique
Patent document 2: specially permit communique No. 3043112
Summary of the invention
, the province that requires to improve COP (coefficient of performance) for the indoor set heat exchanger effectiveness that improves aircondition in recent years can design.Therefore as the indoor set of the aircondition in the patent document 1, heat exchanger respectively disposes one in both sides, and the heat-exchange capacity of heat exchanger is little, and COP (coefficient of performance) is improved.
In addition, as the indoor set of the aircondition in the patent document 2, when the heat exchanger of two roughly the same structures of overlay configuration, though the efficient of heat exchange has improved, but stacked heat exchanger hinders air to be passed through, can reduce the exhaust air rate of exhaust outlet, the result has to increase the capacity of air blast, and cost is increased.Promptly because second heat exchanger that overlaps on first heat exchanger carries out heat exchange with air by first heat exchanger, so require to have the characteristic different with first heat exchanger., second heat exchanger of the heat exchanger of the indoor set of the aircondition of patent document 2 and the structure of first heat exchanger are roughly the same, so can reduce heat exchanger effectiveness and exhaust air rate etc., increase manufacturing cost simultaneously.
The present invention proposes for solving above such problem, can guarantee as far as possible that to provide exhaust air rate and the low-cost indoor set that improves the aircondition of heat exchanger effectiveness are purpose.
The invention that claim 1 is put down in writing comprises: be configured to the main heat exchanger of Eight characters shape (11) roughly, across the state configuration of this main heat exchanger at the secondary unit (12) of both sides with across the state configuration of this main heat exchanger and secondary unit air blast (7) in both sides; Air blast after sucking air and inhaled air is passed through by the order of main heat exchanger and secondary unit, the main heat exchanger downside is discharged downwards; It is characterized in that: the refrigerant pipe arrangement (17) of above-mentioned main heat exchanger is configured on two zones of the first half of indoor set body (1) and Lower Half, and the refrigerant pipe arrangement (22) of above-mentioned secondary unit is configured on the zone of the first half of indoor set body simultaneously.
The invention that claim 2 is put down in writing is characterised in that: in the indoor set of the aircondition that claim 1 is put down in writing, the refrigerant pipe arrangement of above-mentioned secondary unit is thicker than the refrigerant pipe arrangement of above-mentioned main heat exchanger.
The invention that claim 3 is put down in writing is characterised in that: in the indoor set of the aircondition that claim 1 is put down in writing, the spacing (P2) of the fin of above-mentioned secondary unit (24) is bigger than the spacing (P1) of the fin (19) of above-mentioned main heat exchanger.
The invention that claim 4 is put down in writing is characterised in that: in the indoor set of the aircondition that claim 1 is put down in writing, the refrigerant pipe arrangement bending of above-mentioned main heat exchanger is provided between the tube sheet (16) of main heat exchanger, and at the width of tube sheet two row is set; The refrigerant pipe arrangement bending of above-mentioned secondary unit is provided between the tube sheet of secondary unit, and at the width of tube sheet one row is set.
The invention that claim 5 is put down in writing is characterised in that: in the indoor set of the aircondition that claim 1 is put down in writing, the refrigerant pipe arrangement of above-mentioned main heat exchanger separates at pars intermedia, form first connecting portion (36) and second connecting portion (37), one end of the refrigerant pipe arrangement of secondary unit is connected on its first connecting portion, and second connecting portion is connected on the other end of refrigerant pipe arrangement of secondary unit.
Invention according to claim 1 is put down in writing because main heat exchanger and secondary unit are set, can improve heat exchanger effectiveness by secondary unit.And be configured in because of the refrigerant pipe arrangement of above-mentioned secondary unit on the zone of the first half of the many indoor set bodies of air quantity, and can improve heat exchanger effectiveness effectively with a spot of pipe arrangement, the result can reduce manufacturing cost, and because the refrigerant pipe arrangement of above-mentioned secondary unit is not configured in the zone of the Lower Half of indoor set body, so can reduce because of the refrigerant pipe arrangement of the secondary unit obstruction to air stream, the result can guarantee exhaust air rate fully.
The invention of putting down in writing according to claim 2, in the refrigerant pipe arrangement of the above-mentioned secondary unit occasion thicker than the refrigerant pipe arrangement of above-mentioned main heat exchanger, can make the flow of refrigerant of secondary unit slack-off, and the area of refrigerant pipe arrangement is increased, and the result can further improve heat exchanger effectiveness.
The invention of putting down in writing according to claim 3, the big occasion of spacing at the fin of the above-mentioned main heat exchanger of gap ratio of the fin of above-mentioned secondary unit, can prevent the obstruction of the fin of secondary unit to air stream, the result can guarantee the air quantity by main heat exchanger and secondary unit fully.
The invention of putting down in writing according to claim 4, because the refrigerant pipe arrangement of main heat exchanger is two row, the refrigerant pipe arrangement of secondary unit is row, the refrigerant pipe arrangement of heat exchanger becomes three row on top, become two row in the bottom, the result can make at the refrigerant pipe arrangement of the top of the many heat exchangers of air quantity configuration many, with a spot of piping length heat exchanger effectiveness is improved.
The invention of putting down in writing according to claim 5, because the refrigerant pipe arrangement of above-mentioned main heat exchanger separates at pars intermedia, form first connecting portion and second connecting portion, one end of the refrigerant pipe arrangement of secondary unit is connected on its first connecting portion, second connecting portion is connected on the other end of refrigerant pipe arrangement of secondary unit, so the refrigerant pipe arrangement of secondary unit is connected in the refrigerant pipe arrangement way of main heat exchanger, supplies with the high refrigerant of cooling capacity.The result improves the heat exchanger effectiveness that is configured in the many top secondary units of air quantity, thereby the heat exchanger effectiveness of heat exchanger integral body is improved.; if the refrigerant pipe arrangement of secondary unit is connected the downstream of the refrigerant pipe arrangement of main heat exchanger; then in main heat exchanger, carry out the refrigerant that cooling capacity after the heat exchange consumes the sixth of the twelve Earthly Branches and will supply with secondary unit, make the heat exchanger effectiveness decline of secondary unit.
Description of drawings
Fig. 1 is the stereogram of aircondition of the present invention.
Fig. 2 is the profile of indoor set.
Fig. 3 is the cryogen circuit figure of aircondition.
Fig. 4 is the key diagram of heat exchanger, (a) is the figure of the major part of main heat exchanger, (b) is the figure of secondary unit major part.
The specific embodiment
Indoor set one embodiment of aircondition of the present invention is described with Fig. 1 to Fig. 4 below.Fig. 1 is the stereogram of aircondition of the present invention.Fig. 2 is the profile of indoor set.Fig. 3 is the cryogen circuit figure of aircondition.Fig. 4 is the key diagram of heat exchanger, (a) is the figure of the major part of main heat exchanger, (b) is the figure of secondary unit major part.In Fig. 2, grid framework is not a section in addition, is the state that diagram is seen from the front side.And in this manual, the long side direction of establishing ceiling-embedded air conditioner is a left and right directions.Promptly establish two plates side by side direction be left and right directions.
The indoor set body 1 of ceiling-embedded air conditioner is arranged on by in the indoor ceiling of air-conditioning, installs in the lower end of this indoor set body 1 to have the grid framework 4 of air entry 2 and exhaust outlet 3, on this grid framework 4 grid is set dismantledly.
The heat exchanger assembly 6 of Eight characters shape roughly is set in the inside of above-mentioned indoor set body 1 and as the cross flow fan 7 of air blast, this heat exchanger assembly 6 is configured in the top of air entry 2.
Above-mentioned cross flow fan 7 is provided with a pair of across the heat exchanger assembly 6 of Eight characters shape roughly, suck room airs from the air entry 2 of grid framework 4, makes this air by behind the heat exchanger assembly 6, from exhaust outlet 3 rows of grid framework 4 to indoor discharge.Utilize the characteristic of this cross flow fan 7, make by the air flow air amount on heat exchanger assembly 6 tops more than air flow air amount by heat exchanger assembly 6 bottoms.
Above-mentioned heat exchanger assembly 6 has and is configured to the roughly a pair of secondary unit 12 of a pair of main heat exchanger 11 in front and back and front and back of Eight characters shape, and Eight characters shape is configured in this main heat exchanger 11 both sides to a pair of secondary unit 12 in described front and back becoming roughly under the state of main heat exchanger 11.Above-mentioned each main heat exchanger 11 shown in Fig. 4 (a), refrigerant pipe arrangement 17 about two plate pipes 16 between configuration circuitously, and between refrigerant pipe arrangement 16, arrange a plurality of fin 19.The refrigerant pipe arrangement 17 of this main heat exchanger 11 as shown in Figure 2, be arranged on two zones of the first half of indoor set body 1 and Lower Half, long side direction at tube sheet 16 is provided with multistage (being 8 sections in the present embodiment) simultaneously, and in tube sheet 16 wide directions 2 row is set.
Above-mentioned each secondary unit 12 between two tube sheets 21, disposes a plurality of fin 24 about refrigerant pipe arrangement 22 is configured in circuitously simultaneously between two tube sheets 21 shown in Fig. 4 (b).And the refrigerant pipe arrangement 22 of this secondary unit 12 as shown in Figure 2, is arranged on the zone of the first half of indoor set body 1, and is not arranged on the zone of Lower Half.The refrigerant pipe arrangement 22 of secondary unit 12 is provided with 4 sections at the long side direction of tube sheet 21, and in tube sheet 21 wide directions 1 row is set.
In addition, the diameter of the refrigerant pipe arrangement 22 of secondary unit 12 is bigger than the diameter (internal diameter) of the refrigerant pipe arrangement 17 of main heat exchanger 11.And the spacing P2 of the fin 24 of above-mentioned secondary unit 12 is bigger than the spacing P1 of the fin 19 of above-mentioned main heat exchanger 11.
According to the cryogen circuit of Fig. 3 diagrammatic illustration aircondition, the refrigerant of compressor 31 compressed gaseous flows into condensed device 33 by cross valve 32 below.Expanded through choke valve 34 by the refrigerant of this condensed device 33 coolings as the magnetic valve of decompressor, flow into the 1st refrigerant pipe arrangement 17a of a pair of main heat exchanger 11 after the branch, so the refrigerant of heat exchange converges at the refrigerant pipe arrangement 17a of main heat exchanger 11, filter of using by dried capillary 43 and dried capillary 44 flow into the 2nd refrigerant pipe arrangement 17b of main heat exchangers 11, like this, the refrigerant pipe arrangement 17 of main heat exchanger 11 is made of the 1st refrigerant pipe arrangement 17a and the 2nd refrigerant pipe arrangement 17b.
In addition, bypass flow path 46 is set up in parallel with filter 43 and dried capillary 44, and the magnetic valve 47 that dehumidification operation is switched usefulness is set on this bypass flow path 46.
This magnetic valve 47 cuts out when dehumidification operation, makes refrigerant flow into refrigerant filter 43 and dried capillary 44, and when dehumidification operation not, magnetic valve 47 is opened, and by pass filter 43 and dried capillary 44 flow through refrigerant.And above-mentioned the 2nd refrigerant pipe arrangement 17b separately forms the 1st connecting portion 36 and the 2nd connecting portion 37.
One end of the refrigerant pipe arrangement 22 of secondary unit 12 is connected on the 1st connecting portion 36, and the other end of secondary unit 12 is connected on the 2nd connecting portion 37.Therefore the refrigerant of the 2nd refrigerant pipe arrangement 17b one end that flow into main heat exchanger 11 flows out from the other end of the 2nd refrigerant pipe arrangement 17b after refrigerant pipe arrangement 22 circulations of secondary unit 12.
Then, after main heat exchanger 11 outflows, turned back to compressor 31 by the refrigerant of the 2nd refrigerant pipe arrangement 17b of main heat exchanger 11 and secondary unit 12 heat exchanges through four-way switching valve 32 and reservoir vessel 49.This four-way switching valve 32 is when refrigeration is operated and during dehumidification operation etc., refrigerant from compressor 31 is flowed in condensed device 33, make refrigerant flow into reservoir vessel 49 simultaneously from main heat exchanger 11, and when the heating operation, four-way switching valve 32 switches, refrigerant from compressor 31 is flowed in main heat exchanger 11, the refrigerant from condensed device 33 is flowed in reservoir vessel 49.
Like this when compressor 31 work, refrigerant flows in the refrigerant pipe arrangement 22 of the refrigerant pipe arrangement 17 of main heat exchanger 11 and secondary unit 12.In addition, when cross flow fan was worked, as mentioned above, flowed between two tube sheets 16 of air in the main heat exchanger 11 and space between two tube sheets 21 of secondary unit 12.The refrigerant of main heat exchanger 11 and secondary unit 12 carries out heat exchange with air stream by heat exchanger 11,12 then.
As mentioned above, in the above-described embodiment, on the upper half area of the indoor set 1 that the refrigerant pipe arrangement 22 configuration air quantity of secondary unit 12 are many, compare with time on the half area that is configured in indoor set 1, heat exchanger effectiveness improves.And compare when going up with Lower Half two zones with the first half that the refrigerant pipe arrangement 22 of secondary unit 12 is configured in indoor set 1, because only be configured on the upper half area of indoor set 1, thus can shorten piping length, thus manufacturing cost can be reduced.
In addition because the diameter chap of the refrigerant pipe arrangement 22 of secondary unit 12, so that the speed of the refrigerant of the refrigerant pipe arrangement 22 of flowing through descends, the surface area of refrigerant pipe arrangement is increased, further improve heat exchanger effectiveness.And, because the spacing P2 of the fin 24 of secondary unit 12 becomes big, thus obstruction can be reduced to air stream, thus can prevent the minimizing of air quantity as far as possible.
Though describe embodiments of the present invention above in detail, the present invention is not subjected to the restriction of above-mentioned embodiment, can carry out various changes in the scope of claims.Following illustration modification of the present invention:
(1) though air blast cross flow fan preferably, the form of air blast and structure etc. can suitably change.
(2), also can be other form though aircondition is a ceiling-embedded air conditioner.
Claims (5)
1. the indoor set of an aircondition comprises: be configured to Eight characters shape main heat exchanger, across the state configuration of this main heat exchanger at the secondary unit of both sides with across the state configuration of this main heat exchanger and secondary unit air blast in both sides;
Above-mentioned air blast is discharged downwards after the main heat exchanger downside sucks air and inhaled air is passed through by the order of main heat exchanger and secondary unit;
It is characterized in that:
The refrigerant pipe arrangement of above-mentioned main heat exchanger is configured on two zones of the first half of indoor set body and Lower Half, and the refrigerant pipe arrangement of above-mentioned secondary unit is configured on the zone of the first half of indoor set body simultaneously.
2. the indoor set of aircondition as claimed in claim 1, it is characterized in that: the refrigerant pipe arrangement of above-mentioned secondary unit is thicker than the refrigerant pipe arrangement of above-mentioned main heat exchanger.
3. the indoor set of aircondition as claimed in claim 1, it is characterized in that: the spacing of the fin of the above-mentioned main heat exchanger of gap ratio of the fin of above-mentioned secondary unit is big.
4. the indoor set of aircondition as claimed in claim 1, it is characterized in that: the refrigerant pipe arrangement bending of above-mentioned main heat exchanger is provided between the refrigerant pipe arrangement of main heat exchanger, and at the width of tube sheet two row is set;
The refrigerant pipe arrangement bending of above-mentioned secondary unit is provided between the tube sheet of secondary unit, and at the width of tube sheet one row is set.
5. the indoor set of aircondition as claimed in claim 1, it is characterized in that: the refrigerant pipe arrangement of above-mentioned main heat exchanger separates at pars intermedia, form first connecting portion and second connecting portion, one end of the refrigerant pipe arrangement of secondary unit is connected on its first connecting portion, and second connecting portion is connected on the other end of refrigerant pipe arrangement of secondary unit.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP161473/03 | 2003-06-06 | ||
| JP2003161473 | 2003-06-06 | ||
| JP161473/2003 | 2003-06-06 | ||
| JP120944/2004 | 2004-04-16 | ||
| JP120944/04 | 2004-04-16 | ||
| JP2004120944A JP2005016933A (en) | 2003-06-06 | 2004-04-16 | Indoor unit for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1573252A CN1573252A (en) | 2005-02-02 |
| CN1322281C true CN1322281C (en) | 2007-06-20 |
Family
ID=34196803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100452452A Expired - Fee Related CN1322281C (en) | 2003-06-06 | 2004-06-04 | Indoor unit of air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005016933A (en) |
| CN (1) | CN1322281C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4678327B2 (en) * | 2006-04-26 | 2011-04-27 | 三菱電機株式会社 | Air conditioner |
| EP3315869B1 (en) * | 2015-06-25 | 2020-04-15 | Toshiba Carrier Corporation | Ceiling installation type air conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02275233A (en) * | 1989-04-17 | 1990-11-09 | Matsushita Refrig Co Ltd | Space cooling and heating device |
| CN1114736A (en) * | 1994-01-17 | 1996-01-10 | 株式会社东芝 | Apparatus for air conditioner |
| JP3043112B2 (en) * | 1991-06-28 | 2000-05-22 | 三洋電機株式会社 | Air conditioner |
-
2004
- 2004-04-16 JP JP2004120944A patent/JP2005016933A/en active Pending
- 2004-06-04 CN CNB2004100452452A patent/CN1322281C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02275233A (en) * | 1989-04-17 | 1990-11-09 | Matsushita Refrig Co Ltd | Space cooling and heating device |
| JP3043112B2 (en) * | 1991-06-28 | 2000-05-22 | 三洋電機株式会社 | Air conditioner |
| CN1114736A (en) * | 1994-01-17 | 1996-01-10 | 株式会社东芝 | Apparatus for air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1573252A (en) | 2005-02-02 |
| JP2005016933A (en) | 2005-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20100604 |