CN107076526A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
CN107076526A
CN107076526A CN201580057349.1A CN201580057349A CN107076526A CN 107076526 A CN107076526 A CN 107076526A CN 201580057349 A CN201580057349 A CN 201580057349A CN 107076526 A CN107076526 A CN 107076526A
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CN
China
Prior art keywords
fin
pipe
wing
nearby
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201580057349.1A
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Chinese (zh)
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CN107076526B (en
Inventor
神藤正宪
筒井正浩
织谷好男
滨馆润
滨馆润一
森本康介
坂卷智彦
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Daikin Industries Ltd
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Daikin Industries Ltd
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Publication of CN107076526A publication Critical patent/CN107076526A/en
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Publication of CN107076526B publication Critical patent/CN107076526B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

Flat tube (63) is configured along pipeline section direction.Insertion fin (66) is formed with multiple notch parts (67) of the pipe direction of insertion extension intersected along the length direction with pipeline section direction and flat tube, length direction configuration of the insertion fin along flat tube (63).The part contacted in notch part (67) in the state of inserted with flat tube (63) with flat tube (63) is pipe insertion section (80), is formed with insertion fin (66)：Fin pars intermedia (81), it is sandwiched between pipe insertion section (80)；With fin nearby portion (82) towards its nearby side.On insertion fin (66), across fin pars intermedia (81) and fin nearby the boundary portion of portion (82) and be configured with the first fin wing (90), form the first fin wing by carrying out cutting curved processing to insertion fin (66).

Description

Heat exchanger
Technical field
The present invention relates to heat exchanger, more particularly to possesses the heat exchanger of multiple flat tubes and multiple insertion fins.
Background technology
In the past, as shown in patent document 1 (Japanese Unexamined Patent Publication 2012-163323 publications), there is a kind of heat exchanger, it possesses Multiple flat tubes and multiple insertion fins.Flat tube is configured with the opposed state of flat horizontal surface along defined pipeline section direction.Insert wing Piece is formed with multiple notch parts, the pipe direction of insertion that the plurality of notch part intersects along the length direction with pipeline section direction and flat tube Extension, for inserting flat tube, length direction configuration of the insertion fin along flat tube.Here, inserted with flat in notch part The part contacted in the state of flat pipe with flat tube is pipe insertion section.Also, it is formed with insertion fin：In the middle of multiple fins Portion, they are sandwiched between adjacent pipe insertion section on pipeline section direction；Fin nearby portion, its multiple fin from insertion fin The end of the nearby side of the pipe direction of insertion of pars intermedia is each extended over towards the nearby side of pipe direction of insertion；With portion in fin, its From the inboard end of the pipe direction of insertion of multiple fin pars intermedias towards the inboard of pipe direction of insertion with the middle of multiple fins The inboard end of the pipe direction of insertion in portion continuously extends.
The content of the invention
In the heat exchanger of above-mentioned patent document 1, in notch part across fin nearby portion part by flat tube to Flat tube is only directed to pipe insertion section during insertion fin insertion, it is flat in the state of flat tube is inserted into insertion fin Pipe contacted with fin pars intermedia, but not with the nearly front contact of fin.Therefore, it is inserted into insertion fin in flat tube and is engaged In the state of, it is possible to buckling for insertion fin occurs at fin pars intermedia with the fin nearby boundary portion in portion.That is, flat Pipe be inserted into insertion fin and it is engaged in the state of, when heat exchanger is by external force etc., it is possible to fin pars intermedia with Fin nearby portion boundary portion turn into starting point and insert fin and bend.
The problem of the present invention is, in the heat exchanger for possessing multiple flat tubes and multiple insertion fins, suppresses in wing Piece pars intermedia is with occurring buckling for insertion fin at the fin nearby boundary portion in portion.
The heat exchanger of first aspect is to include the heat exchanger of multiple flat tubes and multiple insertion fins.Flat tube is with flat The opposed state of plane is configured along defined pipeline section direction.Insertion fin is formed with multiple notch parts, the plurality of notch part along with The pipe direction of insertion extension that the length direction of pipeline section direction and flat tube intersects, for inserting flat tube, the multiple insertion wing Length direction configuration of the piece along flat tube.Here, the portion contacted in notch part in the state of inserted with flat tube with flat tube It is pipe insertion section to divide, and is formed with insertion fin：Multiple fin pars intermedias, it is sandwiched into adjacent pipe on pipeline section direction and inserted Enter between portion；Fin nearby portion, it is from the end of the nearby side of the pipe direction of insertion of multiple fin pars intermedias towards pipe insertion side To nearby side each extend over；With portion in fin, its inboard end direction from the pipe direction of insertion of multiple fin pars intermedias Pipe direction of insertion inboard and continuously extend with the inboard end of the pipe direction of insertion of multiple fin pars intermedias.Also, this In, on insertion fin, the first fin wing is formed with by cutting curved processing to insertion fin progress, the first fin wing is used Interval between adjacent insertion fin on the length direction for be maintained at flat tube, the first fin wing across fin pars intermedia with Fin nearby the boundary portion in portion and configure.
Here, due to configuring the first fin wing in the way of crossing over fin pars intermedia and the fin nearby boundary portion in portion, because This, flat tube be inserted into insertion fin and it is engaged in the state of, fin pars intermedia and fin nearby portion can be suppressed The reduction of the fin strength in the direction intersected with pipe direction of insertion of the insertion fin at boundary portion.Therefore, inserted in flat tube Enter to insertion fin in the state of being engaged, can suppress to occur to insert at fin pars intermedia with the fin nearby boundary portion in portion Enter buckling for fin.On this point, the heat exchanger such as patent document 1 by fin it is wing into fin nearby portion and Do not configure in the case of with the boundary portion of fin pars intermedia, the fin wing can not suppress the side in fin pars intermedia and fin nearby portion The reduction of the fin strength in the direction intersected with pipe direction of insertion of the insertion fin at portion of boundary, therefore, is inserted into flat tube In the state of being engaged to insertion fin, it is difficult to which suppression is inserted at fin pars intermedia with the fin nearby boundary portion in portion Fin is buckled.On this point, by fin it is wing into fin pars intermedia without configuring on the border with fin nearby portion In the case of portion similarly.
The heat exchanger of second aspect according to the heat exchanger of first aspect, wherein, the first fin wing is configured to, and is formed Along the wall portion of pipe direction of insertion.
Here, because the first fin wing is configured in the side intersected with the boundary portion in fin pars intermedia and fin nearby portion To, therefore, it is possible to improve suppress insertion fin the direction intersected with pipe direction of insertion fin strength reduction effect.And And, because the first fin wing is abreast configured with the air along pipe direction of insertion by direction, therefore, it is possible to reduce ventilation resistance Power.
The heat exchanger of the third aspect according to the heat exchanger of first or second aspect, wherein, on insertion fin, pass through Insertion fin is set to bloat and be formed with the flank around the first fin wing.Here, flank can not also be around the first fin wing Whole surrounding, can also surround the major part of the first fin wing in the U-shaped around three sides of the first fin wing.
Here, due to being formed with the flank around the first fin wing on insertion fin, therefore, it is possible to suppress to cut curved processing The reduction of the fin strength of the insertion fin gone out at the both ends of the first fin wing.
The heat exchanger of fourth aspect according to first to the third aspect heat exchanger in either side heat exchanger, Wherein, for multiple fins for being configured along pipeline section direction, nearby portion and corresponding multiple fin pars intermedias are respectively configured with the first fin The wing.
Here, because for multiple fins, nearby portion and corresponding multiple fin pars intermedias are respectively configured with the first fin wing, Therefore, when in a heat exchanger produce dew when, can reduce the first fin wing dew moisture-holding capacity with ensure insert fin Drainage performance.
5th aspect heat exchanger according to first to fourth aspect heat exchanger in either side heat exchanger, Wherein, in fin in portion, the second fin wing is formed with by cutting curved processing to insertion fin progress, the second fin wing For being maintained at the interval inserted between fin adjacent on the length direction of flat tube.
Here, due in fin portion be formed with the second fin wing, therefore, it is possible to increase on the length direction of flat tube Adjacent insertion fin position against each other and the retention property for improving fin interval.
6th aspect heat exchanger according to the 5th aspect heat exchanger, wherein, the second fin wing is configured to, formed Along the wall portion of pipe direction of insertion.
Here, because the second fin wing is abreast configured with the air along pipe direction of insertion by direction, therefore, it is possible to Reduce flowing resistance.
7th aspect heat exchanger according to the 5th or the 6th aspect heat exchanger, wherein, the first fin wing and second The fin wing is configured to, and is not overlapped each other when fin is inserted from pipe direction of insertion.
Here, due to by the first fin wing and the second fin wing be configured to from pipe direction of insertion insert fin when each other It is not overlapping, therefore, when inserting fin from pipe direction of insertion, it is possible to increase adjacent on the length direction of flat tube to insert Enter the depth of parallelism between fin, can further improve the retention property at fin interval.
Brief description of the drawings
Fig. 1 is the air-conditioning device of the outdoor heat converter with the heat exchanger as an embodiment of the invention Schematic configuration diagram.
Fig. 2 is the stereogram for the outward appearance for showing outdoor unit.
Fig. 3 is the top view for the state for unloading top plate for showing outdoor unit.
Fig. 4 is the stereogram for the state for unloading top plate, foreboard and side plate for showing outdoor unit.
Fig. 5 is the approximate three-dimensional map of outdoor heat converter.
Fig. 6 is the partial enlarged drawing of Fig. 5 heat exchange department.
Fig. 7 is the partial enlargement for showing the state of Fig. 6 heat exchange department from the direction along the length direction of heat-transfer pipe Figure.
Fig. 8 is the figure for wanting portion for showing thermofin.
Fig. 9 is Fig. 8 I-I sectional views.
Figure 10 is Fig. 8 II-II sectional view, III-III sectional views and IV-IV sectional views.
Figure 11 be nearly front side Fig. 8 from pipe direction of insertion figure and from pipe direction of insertion it is inboard from Fig. 8 figure.
Figure 12 is Fig. 8 V-V sectional views.
Figure 13 is the figure for the heat exchanger for showing variation, and is figure corresponding with Fig. 7.
Figure 14 is the figure for the heat exchanger for showing variation, and is figure corresponding with Fig. 7.
Embodiment
Below, the embodiment and its variation with reference to the accompanying drawings to heat exchanger of the invention are illustrated.In addition, this hair The concrete structure of bright heat exchanger is not limited to embodiment disclosed below and its variation, can not depart from the scope of inventive concept It is interior to be changed.
(1) basic structure of air-conditioning device
Fig. 1 is the air-conditioning device of the outdoor heat converter 23 with the heat exchanger as an embodiment of the invention 1 schematic configuration diagram.
Air-conditioning device 1 is that the indoor refrigeration and system of building etc. can be carried out by carrying out steam compression type freeze cycle The device of heat.Air-conditioning device 1 is mainly connected and constituted by outdoor unit 2 and indoor unit 4.Here, outdoor unit 2 It is connected with indoor unit 4 via liquid refrigerant liaison tube 5 and gas refrigerant liaison tube 6.That is, the He of outdoor unit 2 Indoor unit 4 is connected via refrigerant liaison tube 5,6, so that the steam compression type refrigeration agent for constituting air-conditioning device 1 is returned Road 10.
<Indoor unit>
Indoor unit 4 is arranged on interior, constitutes a part for refrigerant loop 10.Indoor unit 4 mainly has interior Heat exchanger 41.
Indoor heat converter 41 is to be played a role in cooling operation as the evaporator of refrigerant with to room air The heat friendship for being cooled down and playing a role to heat room air as the radiator of refrigerant in heating operation Parallel operation.The hydraulic fluid side of indoor heat converter 41 is connected with liquid refrigerant liaison tube 5, the gas side and gas of indoor heat converter 41 Cryogen liaison tube 6 is connected.
Indoor unit 4 has an indoor fan 42, the indoor fan be used to room air being drawn into indoor unit 4 and With refrigerant provide as supply air after heat exchange in indoor heat converter 41 and arrive interior.That is, indoor unit 4 has room Internal fan 42 as to indoor heat converter 41 provide as the refrigerant flowed in heat exchanger 41 indoors heating source or The fan of the room air of cooling source.Here, the centrifugal fan or multiple wing wind driven by indoor fan motor 42a has been used Fan etc. is used as indoor fan 42.
<Outdoor unit>
Outdoor unit 2 is arranged on outdoor, constitutes a part for refrigerant loop 10.Outdoor unit 2 mainly has compression Machine 21, four tunnel switching valves 22, outdoor heat converter 23, expansion valve 24, hydraulic fluid side shutoff valve 25 and gas side shutoff valve 26.
Compressor 21 is to the equipment as high pressure by the refrigerant compression of the low pressure of freeze cycle.Compressor 21 is to pass through Compressor drives the closed structure of the compression key element rotation (not shown) of rotary or vortex isometric(al) formula with motor 21a. The suction side of compressor 21 is connected with suction line 31, and discharge side is connected with discharge pipe 32.Suction line 31 is by the suction of compressor 21 Enter the refrigerant pipe that the tunnel switching valves 22 of Ce He tetra- are connected.Discharge pipe 32 is by the discharge side of compressor 21 and four tunnel switching valves 22 refrigerant pipes connected.
Four tunnel switching valves 22 are the switching valves switched over for the flow direction to the refrigerant in refrigerant loop 10. In cooling operation, four tunnel switching valves 22 carry out the switching to kind of refrigeration cycle state, under the kind of refrigeration cycle state, make outdoor Heat exchanger 23 plays a role as the radiator of the refrigerant compressed in compressor 21, and makes indoor heat converter 41 play a role as the evaporator of the refrigerant radiated in outdoor heat converter 23.That is, in cooling operation, four tunnels are cut Changing valve 22 makes the discharge side (being discharge pipe 32 here) of compressor 21 and the gas side of outdoor heat converter 23 (be the first gas here Cryogen pipe 33) connect (solid lines of four tunnel switching valves 22 of reference picture 1).Also, the suction side of compressor 21 is (here It is suction line 31) connect (reference picture 1 with the side of gas refrigerant liaison tube 6 (being second gas refrigerant pipe 34 here) The solid line of four tunnel switching valves 22).In addition, in heating operation, four tunnel switching valves 22 are carried out to the switching for heating recurrent state, It is described to heat under recurrent state, make outdoor heat converter 23 as the evaporator of the refrigerant radiated in heat exchanger 41 indoors And play a role, and make indoor heat converter 41 as the radiator of the refrigerant compressed in compressor 21 and play work With.That is, in heating operation, four tunnel switching valves 22 make the discharge side (being discharge pipe 32 here) and gas refrigerant of compressor 21 The side of liaison tube 6 (being second gas refrigerant pipe 34 here) is connected (dotted lines of four tunnel switching valves 22 of reference picture 1).And And, the suction side (being suction line 31 here) of compressor 21 and the gas side of outdoor heat converter 23 (are first gas system here Refrigerant tube 33) connect (dotted lines of four tunnel switching valves 22 of reference picture 1).Here, first gas refrigerant pipe 33 is by four The refrigerant pipe that the gas side of road switching valve 22 and outdoor heat converter 23 is connected.Second gas refrigerant pipe 34 is by four The refrigerant pipe that road switching valve 22 is connected with gas side shutoff valve 26.
Outdoor heat converter 23 be in cooling operation as using outdoor air as the refrigerant of cooling source radiator And play a role, in heating operation as the heat that outdoor air plays a role as the evaporator of the refrigerant of heating source Exchanger.The hydraulic fluid side of outdoor heat converter 23 is connected with liquid refrigerant pipe 35, gas side and first gas refrigerant pipe 33 Connection.Liquid refrigerant pipe 35 is to connect the hydraulic fluid side of outdoor heat converter 23 and the side of liquid refrigerant liaison tube 5 Refrigerant pipe.
Expansion valve 24 is by the refrigeration of the high pressure of the freeze cycle radiated in outdoor heat converter 23 in cooling operation Agent is depressurized to the valve of the low pressure of freeze cycle.In addition, expansion valve 24 will be dissipated indoors in heat exchanger 41 in heating operation The refrigerant of the high pressure of the freeze cycle of heat is depressurized to the valve of the low pressure of freeze cycle.Expansion valve 24 is arranged on liquid refrigerant The part of the close hydraulic fluid side shutoff valve 25 of pipe 35.Here, it is used as expansion valve 24 using electric expansion valve.
Hydraulic fluid side shutoff valve 25 and gas side shutoff valve 26 are to be arranged on outside equipment/pipe arrangement (specifically Liquid refrigerant liaison tube 5 and gas refrigerant liaison tube 6) connection connector valve.Hydraulic fluid side shutoff valve 25 is arranged on The end of liquid refrigerant pipe 35.Gas side shutoff valve 26 is arranged on the end of second gas refrigerant pipe 34.
Outdoor unit 2 has an outdoor fan 36, and the outdoor fan is used for outdoor air is drawn into outdoor unit 2 With being discharged to the outside after refrigerant heat exchange in outdoor heat converter 23.That is, outdoor unit 2 have outdoor fan 36 as to Outdoor heat converter 23 provides empty as the cooling source of the refrigerant flowed in outdoor heat converter 23 or the outdoor of heating source The fan of gas.Here, it is used as outdoor fan 36 using by outdoor fan motor 36a propeller type fans driven etc..
<Refrigerant liaison tube>
Refrigerant liaison tube 5,6 is constructed at the scene when air-conditioning device 1 to be arranged to the setting place of building etc. Refrigerant pipe, condition is set according to combination of setting place, outdoor unit 2 and indoor unit 4 etc. and using has various length And the refrigerant pipe of caliber.
(2) elemental motion of air-conditioning device
Below, the elemental motion of air-conditioning device 1 is illustrated using Fig. 1.Air-conditioning device 1 can carry out cooling operation and system Heat run is used as elemental motion.
<Cooling operation>
In cooling operation, four tunnel switching valves 22 are switched to kind of refrigeration cycle state (state shown in solid in Fig. 1).
In refrigerating circuit 10, the gas refrigerant of the low pressure of freeze cycle is inhaled into compressor 21 and compressed It is discharged after to the high pressure as freeze cycle.
The gas refrigerant for the high pressure being discharged from compressor 21 is sent to outdoor heat exchange by four tunnel switching valves 22 Device 23.
The gas refrigerant for being sent to the high pressure of outdoor heat converter 23 plays a role in the radiator as refrigerant Outdoor heat converter 23 in by outdoor fan 36 be provided as cooling source outdoor air carry out heat exchange and radiate, Liquid refrigerant as high pressure.
The liquid refrigerant of the high pressure radiated in outdoor heat converter 23 is sent to expansion valve 24.
Be sent to expansion valve 24 high pressure liquid refrigerant by expansion valve 24 be depressurized to freeze cycle low pressure and The refrigerant of gas-liquid two-phase state as low pressure.The refrigerant for the gas-liquid two-phase state being depressurized by expansion valve 24 passes through liquid Side shutoff valve 25 and liquid refrigerant liaison tube 5 and be sent to indoor heat converter 41.
The refrigerant of the gas-liquid two-phase state of the low pressure of indoor heat converter 41 is sent to indoors to lead in heat exchanger 41 Indoor fan 42 is crossed to evaporate with being provided as the room air progress heat exchange of heating source.Thus, room air is cooled, Then, it is provided to indoor and carries out indoor refrigeration.
The gas refrigerant for the low pressure evaporated indoors in heat exchanger 41 passes through gas refrigerant liaison tube 6, gas side The tunnel switching valve 22 of shutoff valve 26 and four and be again sucked into compressor 21.
<Heating operation>
In heating operation, four tunnel switching valves 22 are switched to heat recurrent state (state shown in dotted line in Fig. 1).
In refrigerant loop 10, the gas refrigerant of the low pressure of freeze cycle is inhaled into compressor 21 and compressed It is discharged after to the high pressure of freeze cycle.
The gas refrigerant for the high pressure being discharged from compressor 21 passes through four tunnel switching valves 22, the and of gas side shutoff valve 26 Gas refrigerant liaison tube 6 and be sent to indoor heat converter 41.
The gas refrigerant of the high pressure of indoor heat converter 41 is sent to indoors in heat exchanger 41 by indoor fan 42 and be provided as cooling source room air carry out heat exchange and radiate, the liquid refrigerant as high pressure.Thus, room Interior air is heated, then, is provided to indoor and is carried out indoor heat.
The liquid refrigerant of the high pressure radiated indoors in heat exchanger 41 passes through liquid refrigerant liaison tube 5 and hydraulic fluid side Shutoff valve 25 and be sent to expansion valve 24.
Be sent to expansion valve 24 high pressure liquid refrigerant by expansion valve 24 be depressurized to freeze cycle low pressure and The refrigerant of gas-liquid two-phase state as low pressure.The refrigerant of the gas-liquid two-phase state for the low pressure being depressurized by expansion valve 24 It is sent to outdoor heat converter 23.
The refrigerant of gas-liquid two-phase state of the low pressure of outdoor heat converter 23 is sent in the evaporator as refrigerant And in the outdoor heat converter 23 played a role, heat is carried out by outdoor fan 36 and the outdoor air for being provided as heating source Exchange and evaporate, the gas refrigerant as low pressure.
The refrigerant for the low pressure evaporated in outdoor heat converter 23 is again sucked into pressure by four tunnel switching valves 22 In contracting machine 21.
(3) basic structure of outdoor unit
Below, the basic structure of outdoor unit 2 is illustrated using Fig. 1 to Fig. 4.Here, Fig. 2 is to show outdoor unit The stereogram of 2 outward appearance.Fig. 3 is the top view for the state for unloading top plate 57 for showing outdoor unit 2.Fig. 4 is to show outdoor The stereogram of the state for unloading top plate 57, foreboard 55,56 and side plate 53,54 of unit 2.In addition, in the following description, In the case of not specified, " on ", " under ", "left", "right", " vertical " and " above ", " side ", " back side ", " top surface ", Words such as " bottom surfaces " refers to blow out the faces of grid 55b sides as the direction and face in the case of above using fan.
The inside that outdoor unit 2 has cell enclosure 51 is partitioned into supply fan room S1 by vertically extending dividing plate 58 With Machine Room S2 structure (so-called box-structure).Outdoor unit 2 is configured to, by outdoor air from the back side of cell enclosure 51 It is drawn into air behind inside before cell enclosure 51 and discharges with a part for side.Outdoor unit 2 mainly has：Unit Shell 51；Constitute refrigerant loop 10 equipment/match somebody with somebody tubing, the refrigerant loop include compressor 21, four tunnel switching valves 22, Outdoor heat converter 23, expansion valve 24, shutoff valve 25,26 and the refrigerant pipe 31~35 for connecting these equipment；And room External fan 36 and outdoor fan motor 36a.In addition, here, the side that keeps left of cell enclosure 51 is formed to supply fan room S1 The example that place, Machine Room S2 are formed at the side of keeping right of cell enclosure 51 is illustrated, but it is also possible to which left and right is opposite.
Cell enclosure 51 is shaped generally as rectangular-shape, main to accommodate：The equipment of composition refrigerant loop 10/match somebody with somebody tubing, The refrigerant loop includes compressor 21, four tunnel switching valves 22, outdoor heat converter 23, expansion valve 24, shutoff valve 25,26 and The refrigerant pipe 31~35 that these equipment are connected；With outdoor fan 36 and outdoor fan motor 36a.Cell enclosure 51 Have：Bottom plate 52, it, which is loaded, constitutes equipment of refrigerant loop 10/with tubing 21~26,31~35 and outdoor fan 36 etc.；Send Fan house side side plate 53, Machine Room side side plate 54, supply fan room side foreboard 55, Machine Room side foreboard 56, top plate 57 and two peaces Fill pin 59.
Bottom plate 52 is the plate-shaped member of the bottom surface portions of Component units shell 51.
Supply fan room side side plate 53 is that the lateral parts by supply fan room S1 of Component units shell 51 (are left surface here Part) plate-shaped member.The bottom of supply fan room side side plate 53 is fixed in bottom plate 52, here, supply fan room side side plate 53 The part that the end of the end of front face side and the left side surface side of supply fan room side foreboard 55 is integrated.The side plate 53 in supply fan room side Side fan suction inlet 53a is formed with, side fan suction inlet 53a is used for outdoor air by outdoor fan 36 from unit The side of shell 51 is drawn into cell enclosure 51.In addition, supply fan room side side plate 53 can also be with before supply fan room side The part of the split of plate 55.
Machine Room side side plate 54 is that the lateral parts by Machine Room S2 of Component units shell 51 (are right side face here Point) a part and cell enclosure 51 the back portion by Machine Room S2 plate portion.The bottom of Machine Room side side plate 54 It is fixed in bottom plate 52.The end of the rear side of side plate 53 and the supply fan room S1 sides of Machine Room side side plate 54 in supply fan room side End between be formed with back side fan suction inlet 53b, back side fan suction inlet 53b is used for outdoor by outdoor fan 36 Air is drawn into cell enclosure 51 from the rear side of cell enclosure 51.
Supply fan room side foreboard 55 is the plate-shaped member of the supply fan room S1 of Component units shell 51 previous section.Air-supply The bottom of machine room side foreboard 55 is fixed in bottom plate 52, here, the end of the left side surface side of supply fan room side foreboard 55 and air-supply The part that the end of the front face side of machine room side side plate 53 is integrated.In supply fan room side, foreboard 55 is provided with fan blow-off outlet 55a, The fan blow-off outlet is used to the outdoor air being drawn into cell enclosure 51 by outdoor fan 36 being blown out to outside.In pressure fan The front face side of room side foreboard 55 is provided with covering fan blow-off outlet 55a fan blowout grid 55b.In addition, before supply fan room side Plate 55 can also be the part with the split of supply fan room side side plate 53.
Machine Room side foreboard 56 is a part and cell enclosure for the Machine Room S2 of Component units shell 51 previous section The plate-shaped member of a part for 51 Machine Room S2 lateral parts.The end quilt of the supply fan room S1 sides of Machine Room side foreboard 56 The end of the Machine Room S2 sides of supply fan room side foreboard 55 is fixed on, the end of the rear side of Machine Room side foreboard 56 is fixed in The end of the front face side of Machine Room side side plate 54.
Top plate 57 is the plate-shaped member of the summit portion of Component units shell 51.Top plate 57 is fixed in supply fan room side plate 53 and Machine Room side side plate 54, supply fan room side foreboard 55.
Dividing plate 58 is disposed on the plate-shaped member extended along vertical on bottom plate 52.Here, will be single by dividing plate 58 The inside of first shell 51 or so ground is split, so as to form the Machine Room of the supply fan room S1 for the side that keeps left and side of keeping right S2.The bottom of dividing plate 58 is fixed in bottom plate 52, and the end of the front face side of dividing plate 58 is fixed in supply fan room side foreboard 55, every The end of the rear side of plate 58 extends to the side end by Machine Room S2 of outdoor heat converter 23.
Installation foot 59 is the plate-shaped member along the fore-and-aft direction extension of cell enclosure 51.Installation foot 59 is to be fixed in outdoor Part on the mounting surface of unit 2.Here, outdoor unit 2 has two installation feet 59, and a configuration is close to supply fan room S1 Position, another configuration close to Machine Room S2 position.
Outdoor fan 36 is the propeller type fan with multiple blades, its in supply fan room S1 with cell enclosure 51 Before (being fan blow-off outlet 55a here) opposed mode configure in the position of the front face side of outdoor heat converter 23.It is outdoor Fan is configured between the fore-and-aft direction of outdoor fan 36 and outdoor heat converter 23 with motor 36a in supply fan room S1.Room The motor fulcrum bearing 36b supportings that external fan motor 36a is positioned on bottom plate 52.Also, outdoor fan 36 is by pivot suspension In outdoor fan motor 36a.
Outdoor heat converter 23 is to overlook the heat-exchanger panels for substantially L-shaped, its in supply fan room S1 with along The side (being left surface here) of cell enclosure 51 and the mode at the back side are positioned on bottom plate 52.
Here, compressor 21 is the closed-type compressor of longitudinal type drum, and it is positioned in bottom plate in the S2 of Machine Room On 52.
(4) basic structure of outdoor heat converter
Below, the basic structure of outdoor heat converter 23 is illustrated using Fig. 1 to Fig. 6.Here, Fig. 5 is outdoor heat The approximate three-dimensional map of exchanger 23.Fig. 6 is the partial enlarged drawing of Fig. 5 heat exchange department 60.In addition, in the following description, In the case of being not particularly illustrated, represent that the word in direction and face refers to be placed in outdoor unit 2 with outdoor heat converter 23 State on the basis of direction and face.
Outdoor heat converter 23 mainly has：Heat exchange department 60, it carries out the heat exchange of outdoor air and refrigerant；Refrigeration Agent current divider 70, inlet manifold 71 and intermediate header 72, the side that they are arranged at heat exchange department 60 (is right-hand member here Side)；With link collector 74, it is arranged on the another side (being left front side here) of heat exchange department 60.Outdoor heat converter 23 be that coolant flow divider 70, inlet manifold 71, intermediate header 72, link collector 74 and heat exchange department 60 are aluminum or aluminium The full aluminum heat exchanger of alloy, the engagement in each portion is carried out by solderings such as furnace brazings.
<Heat exchange department>
Heat exchange department 60 has the weather side heat exchange department 61 and structure of the part for the weather side for constituting outdoor heat converter 23 Into the downwind side heat exchange department 62 of the part of the downwind side of outdoor heat converter 23, produced with respect to the driving of outdoor fan 36 Outdoor air in raw cell enclosure 51 has the structure arranged side by side of 2 row heat exchange department 61,62 by direction.Weather side heat Exchange part 61 is configured in than downwind side heat exchange department 62 close to the side (being left surface here) of cell enclosure 51 and the back side Side.That is, relative to the weather side being located at by direction close to fan suction inlet 53a, 53b of outdoor air in heat exchange department 60 Part be weather side heat exchange department 61, positioned at the side more remote from fan suction inlet 53a, 53b than weather side heat exchange department 61 The part of downwind side is downwind side heat exchange department 62.Also, weather side heat exchange department 61, which has, constitutes outdoor heat converter 23 The main heat exchange department 61a of weather side on the top and secondary heat exchange department 61b of weather side of the bottom of composition outdoor heat converter 23.This Outside, downwind side heat exchange department 62 has the main heat exchange department 62a of downwind side on the top for constituting outdoor heat converter 23 and constitutes room The secondary heat exchange department 62b of the downwind side of the bottom of outer heat-exchanger 23.
Heat exchange department 60 is to insert finned heat exchanger by what multiple heat-transfer pipes 63 and multiple thermofins 66 were constituted Portion, the heat-transfer pipe 63 is made up of flat tube, and the thermofin 66 is made up of insertion fin.Heat-transfer pipe 63 is that aluminum or aluminium are closed Gold system, it is the flat porous with flat horizontal surface 64 and the multiple small internal flow paths 65 flowed for refrigerant as heat-transfer area Pipe.Multiple heat-transfer pipes 63 with the opposed state of flat horizontal surface 64 along defined pipeline section direction it is spaced apart configure multistage, length side To one end (being right-hand member here) be connected with inlet manifold 71 or intermediate header 72, the other end of length direction (is left here Front end) it is connected with linking collector 74.That is, multiple heat-transfer pipes 63 are configured in inlet manifold 71 and intermediate header 72 with linking collector Between 74.Here, because the flat horizontal surface 64 of flat tube 63 is towards vertical, therefore, pipeline section direction refers to vertical, due to Side (be here left surface) and back side configuration of the heat-transfer pipe 63 along cell enclosure 51, therefore, the length direction of heat-transfer pipe 63 is Refer to along the side (being left surface here) of cell enclosure 51 and the horizontal direction at the back side.Thermofin 66 is aluminum or aluminium alloy System, its length direction along heat-transfer pipe 63 configures multiple spaced apartly.Thermofin 66 is formed with multiple notch parts 67, and this is more Individual notch part extends along the pipe direction of insertion that the length direction with pipeline section direction and heat-transfer pipe 63 intersects, for inserting heat-transfer pipe 63.Here, pipeline section direction is vertical, also, the length direction of heat-transfer pipe 63 is (to be here along the side of cell enclosure 51 Left surface) and the back side horizontal direction, therefore, pipe direction of insertion refers to the level side intersected with the length direction of heat-transfer pipe 63 To also consistent by direction with the outdoor air in cell enclosure 51.Pipe direction of insertion of the notch part 67 from thermofin 66 An edge (being the edge of the weather side by direction relative to outdoor air here) slenderly extend in the horizontal direction.And And, here, multiple heat-transfer pipes 63 are divided into：Constitute the main heat exchange department 61a of weather side heat transfer tube group, constitute the secondary heat of weather side Exchange part 61b heat transfer tube group, the heat transfer tube group for constituting the main heat exchange department 62a of downwind side and the secondary heat exchange department of composition downwind side 62b heat transfer tube group.In addition, multiple thermofins 66 are divided into：Constitute the main heat exchange department 61a of weather side and the secondary heat of weather side Fins set, the composition main heat exchange department 62a of downwind side and the secondary heat exchange department of downwind side of the row of weather side shared exchange part 61b The fins set of the row of downwind side shared 62b.
<Coolant flow divider>
Coolant flow divider 70 is connected between the bottom of liquid refrigerant pipe 35 and inlet manifold 71.Refrigerant point Stream device 70 is the part along vertical of aluminum or aluminium alloy.Coolant flow divider 70 is configured to by liquid refrigerant The refrigerant that pipe 35 is flowed into shunts and is directed to the bottom of inlet manifold 71 or will be flowed into by the bottom of inlet manifold 71 Refrigerant converge and be directed to liquid refrigerant pipe 35.
<Inlet manifold>
One side of the weather side heat exchange department 61 that inlet manifold 71 is arranged in heat exchange department 60 (is right-hand member here Side).Also, the one end (being right-hand member here) for constituting the heat-transfer pipe 63 of weather side heat exchange department 61 is connected to inlet manifold 71.Inlet manifold 71 is the part extended along vertical of aluminum or aluminium alloy.The inner space of inlet manifold 71 It is spaced apart up and down by mountain portion (waffle) (not shown), its upper space and the heat-transfer pipe for constituting the main heat exchange department 61a of weather side 63 one end (being right-hand member here) connection, one end of heat-transfer pipe 63 of the lower space with constituting the secondary heat exchange department 61b of weather side (being right-hand member here) connects.Also, the top of inlet manifold 71 is connected with first gas refrigerant pipe 33, it is configured to be in the wind Refrigerant is exchanged between the main heat exchange department 61a in side and first gas refrigerant pipe 33.In addition, bottom and the system of inlet manifold 71 Cryogen current divider 70 is connected, and is configured to exchange refrigerant between refrigerant 70.
<Intermediate header>
One side of the downwind side heat exchange department 62 that intermediate header 72 is arranged in heat exchange department 60 (is right-hand member here Side).Also, the one end (being right-hand member here) for constituting the heat-transfer pipe 63 of downwind side heat exchange department 62 is connected to intermediate header 72. Intermediate header 72 is the part extended along vertical formed by aluminum or aluminum alloy.The inner space of intermediate header 72 is by mountain portion (not shown) is spaced apart up and down, and one end of heat-transfer pipe 63 of its upper space with constituting the main heat exchange department 62a of downwind side (is here Right-hand member) connection, one end (being right-hand member here) of heat-transfer pipe 63 of the lower space with constituting the secondary heat exchange department 62b of downwind side is even It is logical.In addition, the upper space and lower space of intermediate header 72 (are not schemed according to the number of paths of heat exchange department 60 by mountain portion Show) multiple spaces are partitioned into, upper space and lower space are connected by the middle grade of liaison tube 73.Also, intermediate header 72 It is configured to exchange refrigerant between the main heat exchange department 62a of downwind side and the secondary heat exchange department 62b of downwind side.
<Link collector>
Link the another side (being left front side here) that collector 74 is arranged on heat exchange department 60.Also, heat is constituted to hand over The other end (being left front end here) for changing the heat-transfer pipe 63 in portion 60 is connected to link collector 74.It is aluminum or aluminium to link collector 74 The part extended along vertical of alloy.Link space is formed with linking collector 74, the link space is used to make composition The other end (being left front end here) of the heat-transfer pipe 63 of weather side heat exchange department 61 and the heat transfer for constituting downwind side heat exchange department 62 The other end (the being left front end here) connection of pipe 63.Also, link collector 74 and be configured to be in the wind side heat exchange department 61 and leeward Refrigerant is exchanged between side heat exchange department 62.
In the case where the outdoor heat converter 23 having a structure in which plays a role as the evaporator of refrigerant, As shown in the arrow of Fig. 5 flowing for showing refrigerant, the refrigerant flowed into from liquid refrigerant pipe 35 is shunted by refrigerant The bottom of device 70 and inlet manifold 71 and be directed into the secondary heat exchange department 61b of weather side.And then, pass through the secondary heat exchange of weather side Refrigerant after portion 61b is directed into the secondary heat exchange department 62b of downwind side by linking the bottom of collector 74.And then, under Refrigerant after the pair heat exchange department 62b of wind side is directed into the main heat exchange department 62a of downwind side by intermediate header 72.And then, The main heat exchange of weather side is directed into by linking the top of collector 74 by the refrigerant after the main heat exchange department 62a of downwind side Portion 61a.And then, is flowed out to by the top of inlet manifold 71 by the refrigerant after the main heat exchange department 61a of weather side One gas refrigerant pipe 33.Refrigerant is steamed by the heat exchange with outdoor air during such refrigerant flows Hair.In addition, in the case where outdoor heat converter 23 plays a role as the radiator of refrigerant, such as Fig. 5's shows refrigeration Shown in the arrow of the flowing of agent, from first gas refrigerant pipe 33 flow into refrigerant by the top of inlet manifold 71 by It is directed to the main heat exchange department 61a of weather side.And then, by the refrigerant after the main heat exchange department 61a of weather side by linking collector 74 top and be directed into the main heat exchange department 62a of downwind side.And then, pass through the refrigerant after the main heat exchange department 62a of downwind side The secondary heat exchange department 62b of downwind side is directed into by intermediate header 72.And then, after the secondary heat exchange department 62b of downwind side Refrigerant is directed into the secondary heat exchange department 61b of weather side by linking the bottom of collector 74.And then, handed over by the secondary heat of weather side The refrigerant changed after portion 61b flows out to liquid refrigerant pipe by the bottom and coolant flow divider 70 of inlet manifold 71 35.Refrigerant is radiated by the heat exchange with outdoor air during the flowing of such refrigerant.
(5) detailed construction of thermofin
Below, the detailed construction of thermofin 66 is illustrated using Fig. 3 to Figure 12.Here, Fig. 7 is to show to pass from edge Observe the partial enlarged drawing of the state of Fig. 6 heat exchange department 60 in the direction of the length direction of heat pipe 63.Fig. 8 is to show thermofin 66 figure for wanting portion.Fig. 9 is Fig. 8 I-I sectional views.Figure 10 is Fig. 8 II-II sectional view, III-III sectional views and IV-IV Sectional view.Figure 11 be nearly front side Fig. 8 from pipe direction of insertion figure and from pipe direction of insertion it is inboard from Fig. 8 figure. Figure 12 is Fig. 8 V-V sectional views.
<Basic configuration>
Thermofin 66 is to be carried out by the sheet material to aluminum or aluminium alloy formed by punch process, in a direction On longer (being lengthwise here) plate-shaped fins.
Multiple notch parts 67 of thermofin 66 are spaced on the pipeline section direction of thermofin 66 and formed as defined in air switch. Here, the part contacted in notch part 67 in the state of inserted with heat-transfer pipe 63 with heat-transfer pipe 63 constitutes pipe insertion section 80.Pipe Width between the width of the vertical of insertion section 80 and the flat horizontal surface 64 of heat-transfer pipe 63 is substantially equal, pipe insertion section 80 The width of horizontal direction and the width in the direction intersected with flat horizontal surface 64 of flat tube 63 are substantially equal.The week of pipe insertion section 80 Length direction of the edge from the basal plane 66a of thermofin 66 towards heat-transfer pipe 63 side (be here Fig. 7, Fig. 8 paper nearby Side) it is prominent.In addition, the basal plane 66a of thermofin 66 refers to carry out including the shape before the formation in each portion including pipe insertion section 80 The fin face of the thermofin 66 of state.And then, heat-transfer pipe 63 is inserted into notch part 67 and is directed into as notch part 67 A part pipe insertion section 80, and peripheral part by soldering with pipe insertion section 80 engages.Also, in the shape of thermofin 66 Into there is multiple fin pars intermedias 81, the multiple fin pars intermedia be sandwiched into adjacent pipe insertion section 80 on pipeline section direction it Between.In addition, being formed with fin nearby portion 82 in thermofin 66, nearby portion is inserted the fin from the pipe of multiple fin pars intermedias 81 Enter the end of nearby side (being the weather side by direction relative to outdoor air here) in direction towards pipe direction of insertion Nearby side is each extended over.In addition, being formed with portion 83 in fin, the fin portion from multiple fin pars intermedias in thermofin 66 The end of the inboard (being the downwind side by direction relative to outdoor air here) of 81 pipe direction of insertion is inserted towards pipe Direction inboard and continuously extend with the inboard end of the pipe direction of insertion of multiple fin pars intermedias 81.
Also, it is in such thermofin 66, for example, it is contemplated that form multiple mountain portions along pipe direction of insertion, described many Individual mountain portion forms the inclined plane of mountain type.But, if forming such multiple mountain portions, by heat-transfer pipe 63 to thermofin 66 When being inserted in notch part 67, it is possible to which the valley between the mountain portion adjacent along pipe direction of insertion produces the pressure of thermofin 66 It is bent.That is, when heat-transfer pipe 63 is inserted into the notch part 67 of thermofin 66, the valley between the portion of mountain turns into the folding of V shape Trace, thermofin 66 is possible to bending.It is therefore desirable to be able to thermofin when suppressing to insert heat-transfer pipe 63 into notch part 67 66 buckle.
In addition, in such thermofin 66, it will only passed across the part in fin nearby portion 82 in notch part 67 Heat-transfer pipe 63 is directed to pipe insertion section 80 by heat pipe 63 when being inserted into thermofin 66, and heat transfer fin is inserted into heat-transfer pipe 63 In the state of in piece 66, heat-transfer pipe 63 is contacted with fin pars intermedia 81 but nearby portion 82 is not contacted with fin.Therefore, in heat transfer Pipe 63 be inserted into thermofin 66 and it is engaged in the state of, it is possible in fin pars intermedia 81 and fin nearby portion 82 Buckling for thermofin 66 occurs at boundary portion.That is, state in thermofin 66 and engaged is inserted into heat-transfer pipe 63 Under, when outdoor heat converter 23 is by external force etc., it is possible to which the boundary portion in fin pars intermedia 81 and fin nearby portion 82 turns into Starting point and thermofin 66 is bent.In contrast, being required to suppress in fin pars intermedia 81 and fin nearby portion 82 Buckling for thermofin 66 occurs at boundary portion.
Therefore, here, buckling and wing for the thermofin 66 when suppressing to insert heat-transfer pipe 63 into notch part 67 The generation buckled of piece pars intermedia 81 and the thermofin 66 at the fin nearby boundary portion in portion 82, is implemented to thermofin 66 Following design.
<Base portion>
First, on thermofin 66, form tangible in multiple fin pars intermedias 81 by bloating thermofin 66 Into the base portion 84 of tabular surface 85.Base portion 84 configures the part near the center of the pipe direction of insertion of fin pars intermedia 81. Here, tabular surface 85 is configured in following location：Its entirety than thermofin 66 length direction from basal plane 66a to heat-transfer pipe 63 Side (being Fig. 7, Fig. 8 paper nearby side here) it is prominent.
So, here, the base portion 84 that tabular surface 85 is formed due to being formed with fin pars intermedia 81, therefore, with passing The situation in the hot formation of fin 66 mountain portion is different, when heat-transfer pipe 63 is inserted into the notch part 67 of thermofin 66, without The part of the such folding line as V shape of valley between the portion of mountain.Therefore, it is possible to improve the direction intersected with pipe direction of insertion Fin strength, thermofin 66 is buckled when can suppress to insert heat-transfer pipe 63 into notch part 67.
In addition, the projecting height that the basal plane 66a from thermofin 66 of base portion 84 is protruded is set at pipe insertion section 80 Projecting height more than.Therefore, by forming base portion 84, so as to improve the effect for improving fin strength.
In addition, tabular surface 85 has：Parallel to each other first extended along pipe direction of insertion 85b in 85a and second；Will First in 85a and second end of the nearby side of 85b pipe direction of insertion the 3rd side 85c connected to each other；And will First in 85a and second the inboard end of 85b pipe direction of insertion the 4th side 85d connected to each other.Here, first Side 85a (is Fig. 7, Fig. 8 each fin pars intermedia 81 here along across the side of a pair of pipe insertion sections 60 of fin pars intermedia 81 Pipe insertion section 60 on the upside of paper) and configure.Second side 85b is along across the another of a pair of pipe insertion sections 60 of fin pars intermedia 81 Side (be here Fig. 7, Fig. 8 each fin pars intermedia 81 paper on the downside of pipe insertion section 60) and configure.Thus, the shape of base portion 84 Into tabular surface 85 there is substantially square shape.Therefore, particularly can be using being used as formation substantially four sides of square shape The 85b in 85a and second of the first of a part improves the fin strength in the direction intersected with pipe direction of insertion.In addition, here, Each side 85a~85d end is concatenated in the way of forming acute angle each other, but it is also possible to by chamfering or make angle turn into R shapes The mode that shape etc. makes angle smooth links.
Further, since first in 85a and second length of 85b pipe direction of insertion it is identical, and the first side 85a and Two side 85b configurations are in the position of identical pipe direction of insertion, therefore, the 3rd in 85c and the 4th 85d hand over pipe direction of insertion The length in the direction (pipeline section direction) of fork is also identical, and the 3rd in 85c and the 4th 85d be also disposed in identical and pipe and insert The position in the direction that direction intersects.Therefore, here, tabular surface 85 formed by both sides 85a, 85b parallel with pipe direction of insertion and The oblong-shaped that both sides 85c, 85d parallel with pipeline section direction is constituted.Therefore, can not only using first in 85a and second 85b Improve the fin strength in the direction intersected with pipe direction of insertion, additionally it is possible to utilize the 3rd 85d raisings pipe insertion in 85c and the 4th The fin strength in direction.
<The fin wing>
Then, by carrying out cutting curved processing to thermofin 66 and in the first fin wing 90 of formation of thermofin 66, this The one fin wing is used for the interval being maintained between thermofin 66 adjacent on the length direction of heat-transfer pipe 63, the first fin wing 90 Across fin pars intermedia 81 and fin nearby the boundary portion in portion 82 and configure.Here, the first fin wing 90 is than thermofin 66 Prominent substantially cubic in side (being Fig. 7, Fig. 8 paper nearby side here) from basal plane 66a to the length direction of heat-transfer pipe 63 The small pieces of shape.Pass through the basal plane 66a of the first fin wing 90 and thermofin 66 adjacent on the length direction of heat-transfer pipe 63 Abut, so as to keep the interval between thermofin 66.In addition, here, the first fin wing 90 configures the pipe in thermofin 66 The part of near the Duan Fangxiang center and nearby side of the pipe direction of insertion of base portion 84.
So, here, due to configuring first in the way of crossing over fin pars intermedia 81 and the fin nearby boundary portion in portion 82 The fin wing 90, therefore, heat-transfer pipe 63 be inserted into thermofin 66 and it is engaged in the state of, can suppress in the middle of fin Portion 81 and the direction (pipeline section direction) intersected with pipe direction of insertion of the thermofin 66 at the fin nearby boundary portion in portion 82 The reduction of fin strength.Therefore, heat-transfer pipe 63 be inserted into thermofin 66 and it is engaged in the state of, can suppress Fin pars intermedia 81 is with occurring buckling for thermofin 66 at the fin nearby boundary portion in portion 82.On this point, when by fin It is wing into fin, nearby portion 82 is without configuring in the case of with the boundary portion of fin pars intermedia 81, the fin wing can not suppress wing Piece pars intermedia 81 and the fin in the direction intersected with pipe direction of insertion of the thermofin 66 at the fin nearby boundary portion in portion 82 The reduction of intensity, therefore, heat-transfer pipe 63 be inserted into thermofin 66 and it is engaged in the state of, it is difficult to suppress in fin Between portion 81 with the fin nearby boundary portion in portion 82 occur thermofin 66 buckle.On this point, by fin it is wing into Fin pars intermedia 81 is without configuring in the case of with the fin nearby boundary portion in portion 82 similarly.
In addition, the first fin wing 90 is configured to, the wall portion along pipe direction of insertion is formed.Therefore, the first fin wing 90 Configure on the direction intersected in the boundary portion with fin pars intermedia 81 and fin nearby portion 82, suppress to conduct heat therefore, it is possible to improve The effect of the reduction of the fin strength in the direction intersected with pipe direction of insertion of fin 66.Also, due to the first fin wing 90 with Abreast configured by direction along the air of pipe direction of insertion, therefore, it is possible to reduce flowing resistance.
In addition, on thermofin 66, by carrying out cutting curved processing to thermofin 66 and portion 83 is formed with fin The second fin wing 91, the second fin wing 91 is used to be maintained between thermofin 66 adjacent on the length direction of heat-transfer pipe 63 Interval.Here, the second fin wing 91 be than thermofin 66 length direction from basal plane 66a to heat-transfer pipe 63 side (this In be Fig. 7, Fig. 8 paper nearby side) prominent substantially square shape small pieces.By the second fin wing 91 and in heat-transfer pipe 63 Length direction on the basal plane 66a of adjacent thermofin 66 abut, so as to keep the interval between thermofin 66.In addition, Here, the second fin wing 91 configure the pipeline section direction of thermofin 66 center near and base portion 84 pipe insertion side To inboard part.Thus, here, by increasing capacitance it is possible to increase adjacent thermofin 66 is supported each other on the length direction of heat-transfer pipe 66 The position connect is to improve the retention property at fin interval.
In addition, the second fin wing 91 is configured to, the wall portion along pipe direction of insertion is formed.Therefore, here, due to second The fin wing 91 is abreast configured with the air along pipe direction of insertion by direction, therefore, it is possible to reduce flowing resistance.
In addition, from pipe direction of insertion during thermofin 66, the first fin wing 90 and the second fin wing 91 are configured to Do not overlap each other.Here, the first fin wing 90 is (to be Fig. 7, Fig. 8 here in the side in the pipeline section direction of the first fin wing 90 On the upside of paper) mode that is formed with opening 90a cut curved processing, and the first fin wing 90 is configured in from thermofin 66 The position that the opposite side (being on the downside of Fig. 7, Fig. 8 paper here) in the mediad pipeline section direction in pipeline section direction deviates.In contrast, It (is Fig. 7, figure here that the second fin wing 91, which is configured in from the side in the mediad pipeline section direction in the pipeline section direction of thermofin 66, On the upside of 8 paper) position deviateed.Also, thus, in the thermofin 66 from pipe direction of insertion, the first fin wing 90 Configured across the center in the pipeline section direction of thermofin 66 in the position of the opposite side deviation to the second fin wing 91.Therefore, Here, it is possible to increase the thermofin adjacent on the length direction of heat-transfer pipe 63 during thermofin 66 from pipe direction of insertion The depth of parallelism between 66, can further improve the retention property at fin interval.
<Flank>
Then, on thermofin 66, by bloat thermofin 66 and base portion 85 pipe direction of insertion it is near Front side and inboard are formed with flank 92,96.Configuration has in the nearby side rib portion 92 of the nearby side of the pipe direction of insertion of base portion 85 Have：The first flank of nearby side 93 and nearby the second rib of side 94 extended along pipe direction of insertion；Intersect with edge with pipe direction of insertion The rib 95 of nearby side the 3rd of direction (pipeline section direction) extension.Configure the inboard inboard flank in the pipe direction of insertion of base portion 85 96 have：Inboard first flank 97 and inboard second rib 98 extended along pipe direction of insertion；And intersect along with pipe direction of insertion Direction (pipeline section direction) extension the rib 99 of inboard the 3rd.Here, flank 92,96 than the basal plane 66a of thermofin 66 to heat transfer Side (being Fig. 7, Fig. 8 paper nearby side here) bulging of the length direction of pipe 63.
Nearby side of the first flank of side 93 along a pair of pipe insertion sections 60 across fin pars intermedia 81 (is Fig. 7, figure here Pipe insertion section 60 on the upside of the paper of 8 each fin pars intermedia 81) configuration.Nearby the first flank of side 93 is formed as its crest line 93a The mountain type parallel with the pipe direction of insertion of thermofin 66.That is, the nearby crest line 93a of the first flank of side 93 and outdoor air it is logical Direction is crossed abreast to configure.
Nearby opposite side of the second rib of side 94 along a pair of pipe insertion sections 60 across fin pars intermedia 81 (is Fig. 7, figure here Pipe insertion section 60 on the downside of the paper of 8 each fin pars intermedia 81) and configure.Nearby the second flank of side 94 is formed as its crest line Mountain type parallel with the pipe direction of insertion of thermofin 66 94a.That is, the nearby crest line 94a and outdoor air of the second flank of side 94 Abreast configured by direction.
In addition, nearby the first flank of side 93 and nearby the second flank of side 94 does not extend only into fin pars intermedia 81, also extended To fin nearby portion 82.That is, nearby the first flank of side 93 and the nearby leap of the second flank of side 94 fin pars intermedia 81 are near with fin Front portion 82 boundary portion and configure.
Nearby the rib 95 of side the 3rd is configured to, nearly the first flank 93 of front side and nearby the pipe insertion side of the second flank of side 94 To the side of base portion 85 end it is connected to each other.Nearby the rib 95 of side the 3rd be formed as its crest line 95a parallel to heat transfer fin The mountain type in the direction that the pipe direction of insertion of piece 66 is intersected.That is, the nearby crest line 95a of the rib 95 of side the 3rd and outdoor air pass through side To configuring across.Also, here, nearby the crest line 93a of the first flank of side 93, nearby the crest line 95a of the rib 95 of side the 3rd, nearby The crest line 94a of the second flank of side 94 is joined into U-shaped, thus, nearby the first flank of side 93, the nearby rib 95 of side the 3rd and near The entirety (that is, nearby side rib portion 92) of the second flank of front side 94 is formed as the mountain type of U-shaped.In addition, nearby side the 3rd rib 95 The rim 95b of the side of base portion 84 is consistent with the 3rd side 85c of the tabular surface 85 of base portion 84.That is, the nearby base of the rib 95 of side the 3rd The rim 95b of the side of portions 84 is located on the tabular surface 85 protruded from basal plane 66a, rather than positioned at the basal plane 66a of thermofin 66 On.Thus, the nearby rib 95 of side the 3rd (that is, including nearby the first flank of the side 93 and nearby nearby side rib portion of the second flank of side 94 92) the 3rd side 85c with the tabular surface 85 of base portion 84 is continuously configured.In addition, nearby side rib portion 92 is with around the first fin The mode of the wing 90 is configured.Here, around three sides in addition to the nearby side of pipe direction of insertion of the first fin wing 90.In addition, Nearby side rib portion 92 is configured in its crest line 93a, 94a, 95a than the tabular surface 85 of base portion 84 and the basal plane of thermofin 66 The position that 66a is protruded.
In addition, inboard first flank 97 and inboard second rib 98 are along a pair of pipe insertion sections 60 across fin pars intermedia 81 Side (be here Fig. 7, Fig. 8 each fin pars intermedia 81 paper on the upside of pipe insertion section 60) configuration.Inboard first flank 97 Be formed as its crest line 97a mountain types parallel with the pipe direction of insertion of thermofin 66.That is, the crest line 97a of inboard first flank 97 Abreast configured by direction with outdoor air.
Opposite side of inboard second rib 98 along a pair of pipe insertion sections 60 across fin pars intermedia 81 (is Fig. 7, Fig. 8 here Each fin pars intermedia 81 paper on the downside of pipe insertion section 60) configuration.Inboard second flank 98 is formed as its crest line 98a and biography The parallel mountain type of the pipe direction of insertion of hot fin 66.That is, the crest line 98a of inboard second flank 98 and outdoor air pass through direction Abreast configure.
In addition, inboard first flank 97 and inboard second flank 98 do not extend only into fin pars intermedia 81, also extend into wing Portion 83 in piece.That is, the border of inboard first flank 97 and inboard second flank 98 across portion 83 in fin pars intermedia 81 and fin Portion and configure.
Inboard 3rd rib 99 is configured to, by inboard first flank 97 and the base of the pipe direction of insertion of inboard second flank 98 The end of the side of portions 85 is connected to each other.Inboard 3rd rib 99 is formed as its crest line 99a parallel to the pipe with thermofin 66 The mountain type in the direction that direction of insertion is intersected.That is, the inboard crest line 99a of the 3rd rib 99 and being matched somebody with somebody across by direction for outdoor air Put.Also, here, the crest line 97a of inboard first flank 97, crest line 99a, the rib of inboard second flank 98 of inboard 3rd rib 99 Line 98a is joined into U-shaped, thus, inboard first flank 97, inboard 3rd rib 99, inboard second flank 98 entirety (i.e., Inboard flank 96) be formed as the mountain type of U-shaped.In addition, the rim 99b and base portion of the side of base portion 84 of inboard 3rd rib 99 4th side 85d of 84 tabular surface 85 is consistent.That is, the rim 99b of the side of base portion 84 of inboard 3rd rib 99 is located at from basal plane 66a On prominent tabular surface 85, rather than on the basal plane 66a of thermofin 66.Thus, inboard 3rd rib 99 is (that is, including inner The inboard flank 96 of the first flank of side 97 and inboard second flank 98) it is continuous with the 4th side 85d of the tabular surface 85 of base portion 84 Ground is configured.In addition, inboard flank 96 is configured in the way of around the second fin wing 91.Here, removing around the second fin wing 91 Three sides beyond the nearby side of pipe direction of insertion.In addition, inboard flank 96 is configured in its crest line 97a, 98a, 99a and compares pedestal The position that the tabular surface 85 in portion 84 and the basal plane 66a of thermofin 66 are protruded.
Here, as described above, in the nearby side and inboard of the pipe direction of insertion of base portion 84, the 3rd side with tabular surface 85 85c and the 4th side 85d continuously configure (specifically the first and second flanks of flank 92,96 extended along pipe direction of insertion 93、94、97、98).Therefore, it is possible to make flank 92,96 and the 3rd side 85c that is integrated and avoiding base portion 84 of base portion 84 and 4th side 85d turns into folding line.Thereby, it is possible to the nearby side and inboard of the pipe direction of insertion for improving base portion 84 and base portion 84 The fin strength in the direction intersected with pipe direction of insertion at part.
In addition, here, as described above, in the middle of with leap fin pars intermedia 81 and the fin nearby boundary portion and fin in portion 82 In portion 81 and fin the mode of the boundary portion in portion 83 configure flank 93,96 (specifically the first and second flanks 93,94,97, 98).Therefore, it is possible to improve fin pars intermedia 81 and the fin nearby boundary portion in portion 82 and fin pars intermedia 81 and portion 83 in fin Boundary portion at the direction intersected with pipe direction of insertion fin strength.Therefore, by heat-transfer pipe 63 to thermofin 66 When being inserted in notch part 67, insertion fin by starting point of the boundary portion in portion 83 in fin pars intermedia 81 and fin can be suppressed Buckle, in addition, in the state of being inserted into thermofin 66 and being engaged in heat-transfer pipe 63, can suppress with fin pars intermedia 81 buckling with the boundary portion in fin nearby portion 82 for the thermofin 66 of starting point.
In addition, here, as noted previously, as being formed with thermofin 66 around the nearby side rib portion of the first fin wing 90 93, therefore, it is possible to suppress to cut the reduction of the fin strength at the both ends of the curved thermofin 66 for processing the first fin wing 90.
(6) variation
<A>
In the outdoor heat converter 23 as the heat exchanger of above-mentioned embodiment, base is formed with thermofin 66 Portions 84, but in its tabular surface 85, what is not all formed.It is however not limited to this.It is also possible that：For example, as shown in figure 13, with Improve for the purpose of heat transfer property, transom window is formed in the tabular surface 85 of base portion 84 by cutting curved processing to the progress of thermofin 66 86。
Here, due to being formed with transom window 86 in base portion 84, thus, for example, with not forming mountain in fin pars intermedia 81 The situation that the part in portion forms transom window is compared, and can also be improved and pipe insertion side in the part of the formation transom window of fin pars intermedia 81 To the fin strength in the direction of intersection.In addition, compared with the situation of transom window is formed in mountain portion, large-size can be set (especially Larger size on pipeline section direction) transom window 86.Therefore, it is possible to suppress by notch part from heat-transfer pipe 63 to thermofin 66 Thermofin 66 during 67 insertion is buckled, and can improve heat transfer property.
<B>
In the outdoor heat converter 23 as the heat exchanger of above-mentioned embodiment, along pipeline section direction configure it is many Individual fin nearby configures the first fin wing 90 on portion 82 and corresponding multiple fin pars intermedias 81.It is however not limited to which this, also may be used With so：For example, as shown in figure 14, for nearby portion 82 and corresponding multiple fin pars intermedias 81 respectively configuration first of multiple fins The fin wing 90.
Here, because for multiple fins, nearby portion 82 and corresponding multiple fin pars intermedias 81 respectively configure the first fin wing 90, therefore, when outdoor heat converter 23 produces dew, the moisture-holding capacity of the dew of the first fin wing 90 can be reduced and ensure to pass The drainage performance of hot fin 66.In addition, here although not shown, but on the second fin wing 91, can also be with the first fin wing 90 Similarly configured for each section.
<C>
In the outdoor heat converter 23 as the heat exchanger of above-mentioned embodiment, the first fin wing 90 is with slotting along pipe The mode for entering direction is configured, but not limited to this, if the boundary portion across fin pars intermedia 81 and fin nearby portion 82 is configured, the The one fin wing 90 can not also be along pipe direction of insertion.
<D>
In the outdoor heat converter 23 as the heat exchanger of above-mentioned embodiment, nearby side rib portion 92 surrounds first Three sides in addition to the nearby side of pipe direction of insertion of the fin wing 90, but not limited to this.For example, here although not shown, but Can be so：Nearby side rib portion 92 surrounds the surrounding of the also nearby side including pipe direction of insertion of the first fin wing 90.
<E>
In the outdoor heat converter 23 as the heat exchanger of above-mentioned embodiment, list in the logical of outdoor air Exemplified by the heat exchanger for the form for crossing on direction and showing 2 biographies heat pipes 63, but not limited to this, both can be 1 row or It is more than 3 row.
Industrial applicability
Present invention is generally applicable to possess the heat exchanger of multiple flat tubes and multiple insertion fins.
Label declaration
23 outdoor heat converters (heat exchanger)
63 heat-transfer pipes (flat tube)
64 flat horizontal surfaces
66 thermofins (insertion fin)
67 notch parts
80 pipe insertion sections
81 fin pars intermedias
82 fins nearby portion
Portion in 83 fins
The 90 first fin wings
The 91 second fin wings
92 nearby side rib portion (flanks)

Claims (7)

1. a kind of heat exchanger (23), the heat exchanger possesses：Multiple flat tubes (63), they are with the opposed shape of flat horizontal surface (64) State is configured along defined pipeline section direction；With multiple insertion fins (66), they are formed with multiple notch parts (67), the plurality of breach Portion extends along the pipe direction of insertion that the length direction with the pipeline section direction and the flat tube intersects, described flat for inserting Pipe, length direction of the multiple insertion fin along the flat tube is configured, and the heat exchanger is characterised by,
Inserted when using the part contacted in the notch part in the state of inserted with the flat tube with the flat tube as pipe When entering portion (80), it is formed with the insertion fin：Multiple fin pars intermedias (81), they are sandwiched in the pipeline section side Upwards between the adjacent pipe insertion section；Fin nearby portion (82), it is inserted from the pipe of the multiple fin pars intermedia The end of the nearby side in direction is each extended over towards the nearby side of the pipe direction of insertion；With portion in fin (83), it is from described The inboard end of the pipe direction of insertion of multiple fin pars intermedias towards the pipe direction of insertion inboard and with it is described many The inboard end of the pipe direction of insertion of individual fin pars intermedia continuously extends,
On the insertion fin, the first fin wing (90) is formed with by cutting curved processing to the insertion fin progress, institute The interval that the first fin wing is used to be maintained between the insertion fin adjacent on the length direction of the flat tube is stated,
The first fin wing across the fin pars intermedia and the fin nearby the boundary portion in portion and configure.
2. heat exchanger (23) according to claim 1, wherein,
The first fin wing (90) is configured to form the wall portion along the pipe direction of insertion.
3. heat exchanger (23) according to claim 1 or 2, wherein,
On the insertion fin (66), it is formed with by bloating the insertion fin around the first fin wing (90) Flank (92).
4. the heat exchanger (23) according to any one of claims 1 to 3, wherein,
For the multiple fin that is configured along the pipeline section direction nearby portion (82) and corresponding the multiple fin pars intermedia (81) respectively it is configured with the first fin wing (90).
5. the heat exchanger (23) according to any one of Claims 1-4, wherein,
Portion (83) in the fin, the second fin wing (91) is formed with by cutting curved processing to the insertion fin progress, The second fin wing is used to be maintained between the insertion fin (66) adjacent on the length direction of the flat tube (63) Interval.
6. heat exchanger (23) according to claim 5, wherein,
The second fin wing (91) is configured to form the wall portion along the pipe direction of insertion.
7. the heat exchanger (23) according to claim 5 or 6, wherein,
The first fin wing (90) and the second fin wing (91) are configured to described from the pipe direction of insertion Do not overlapped each other during insertion fin (66).
CN201580057349.1A 2014-10-27 2015-10-19 Heat exchanger Active CN107076526B (en)

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JP2014217917A JP5962734B2 (en) 2014-10-27 2014-10-27 Heat exchanger
PCT/JP2015/079483 WO2016067957A1 (en) 2014-10-27 2015-10-19 Heat exchanger

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WO2016067957A1 (en) 2016-05-06
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JP2016084976A (en) 2016-05-19

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