CN105783139A - Method for manufacturing heat exchanger and method for manufacturing air conditioner - Google Patents

Method for manufacturing heat exchanger and method for manufacturing air conditioner Download PDF

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Publication number
CN105783139A
CN105783139A CN201610232790.5A CN201610232790A CN105783139A CN 105783139 A CN105783139 A CN 105783139A CN 201610232790 A CN201610232790 A CN 201610232790A CN 105783139 A CN105783139 A CN 105783139A
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CN
China
Prior art keywords
fin
heat exchanger
spacing
air conditioner
manufacture method
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.)
Pending
Application number
CN201610232790.5A
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Chinese (zh)
Inventor
池田亮
池田亮一
村田明生
三宅展明
冈泽宏树
铃木涉
松田拓也
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Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN201610232790.5A priority Critical patent/CN105783139A/en
Publication of CN105783139A publication Critical patent/CN105783139A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/18—Heat exchangers specially adapted for separate outdoor units characterised by their shape
    • 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
    • F28D1/0233—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 air flow channels
    • F28D1/024—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 air flow channels with an air driving element
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—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 bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
    • F28D1/0476—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 bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend the conduits having a non-circular cross-section
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/14—Fins in the form of movable or loose fins

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The heat exchanger (1) comprises: a plurality of fins (12) stacked at a predetermined fin pitch; and a plurality of heat transfer tubes (10) having a flat cross section and penetrating the fins (12) in the stacking direction; a plurality of notches (13) having a shape corresponding to the cross-sectional shape of the heat transfer pipe (10) are formed at the end portions of the fins (12) on the longitudinal direction side, a flange (14) is formed at the edge of each notch (13), the heat transfer pipe (10) is inserted into the notch (13), the fin pitch between some of the plurality of fins (12) is larger than the fin pitch between other fins (12), and the larger fin pitch is at least larger than the height of the flange (14).

Description

The manufacture method of heat exchanger and the manufacture method of air conditioner
The divisional application of application for a patent for invention that the application is international application no to be PCT/JP2012/005041, international filing date be on August 8th, 2012, national applications number is 201280073564.7, denomination of invention is " heat exchanger and possess the air conditioner of this heat exchanger ".
Technical field
The present invention relates to the manufacture method of the manufacture method of heat exchanger and air conditioner.
Background technology
Since in the past, in the heat exchanger of air conditioner, mostly adopt following plate fin tubular constructions: separate regulation spacing of fin stacking multiple define the aluminum fin of band plate-like of circular port, (following along the fin of these stackings, also referred to as fins set) stacked direction insert the copper of many toroidal sections or the heat pipe of aluminum, use hydraulic type, mechanical pipe expander to expand the internal diameter of heat pipe afterwards, therefore ensure that the adhesion (for example, referring to patent documentation 1) between the fin needed for the heat conductivility of heat exchanger and heat pipe.
It addition, for the area increasing fin and heat pipe contiguity, the edge of the circular port of fin is implemented the flange processing of the flange forming drum.It addition, in finned plates portion between circular port, flow through the heat exchange performance between the air between fin and fin sometimes for improving and be provided with slit.The progressive die with multiple operation is positioned on forcing press, while the aluminum annular material of supply band plate-like, make forcing press continuous operation, be thus sequentially carried out the processing (for example, referring to patent documentation 2) being formed at the circular port of fin, flange and slit.Then, the annular material that be machined circular port, flange and slit by pressure processing is cut into desired band plate length, thus completing fin.
The fin being thusly-formed makes flange be connected to adjacent fin, and stacks gradually the number used, and carries out having the insertion of much longer heat pipes of the U-shaped forming section being referred to as hair clip, expander afterwards.So, the stacking of fin is inserted with pipe and is carried out for benchmark with flange, and therefore, result fin is with stacked at equal intervals, fixing (for example, referring to the patent documentation 3) of flange height.Many heat pipes pass through pipe, the i.e. parts such as U-tube or the allotter connection that soldering is connected with the pipe arrangement bending to U-shaped in end, thus, define the continuous flow path of the cold-producing medium repeatedly turned back in fins set.The fins set that the heat pipe of the pipe arrangement of connection end is built-in is again formed as L-shaped or U-shaped sometimes.Such as when forming heat exchanger in U-shaped, by fins set performs twice at L word bending forming, the heat pipe shape of the global shape and inside that ultimately form fins set is the heat exchanger (for example, referring to patent documentation 4) of U-shaped.In heat exchanger after bending forming, also become the upper state with all keeping the state before shaping, with flange height for each fin of stacking at equal intervals of three faces (line part) in U-shaped.
About air conditioner, under the background that current energy problem highlights etc., competition energy-conservation, cost degradation becomes notable.Therefore, in above-mentioned this heat exchanger, for heat pipe, the shape of fin, spacing of fin, heat pipe, fin material etc., pursue the countermeasure further improved, and, it is also proposed the internal structure with air conditioner and correspondingly change the countermeasures such as spacing of fin (for example, referring to patent documentation 5,6,7).
[prior art literature]
[patent documentation]
Patent documentation 1: Japanese Patent Publication 58-13249 publication (the 3-4th page, 1-3 figure)
Patent documentation 2: Japanese Patent Publication 58-9358 publication (the 2-3rd page, 1-5 figure)
Patent documentation 3: Japanese Patent Publication 3-80571 publication (the 9th page, 1-2 figure)
Patent documentation 4: No. 4417620 publications of Japan Patent (the 15th page, Figure 20)
Patent documentation 5: Japanese Laid-Open Patent Publication 63-233296 publication (page 2)
Patent documentation 6: Japanese Unexamined Patent Publication 2004-245531 publication (page 3)
Patent documentation 7: Japanese Unexamined Patent Publication 2008-8541 publication (the 7th page, Fig. 3)
Summary of the invention
The problem that invention to solve
As described above, the heat pipe of toroidal section via the operation of the multiple fin forming flange at the edge of circular port of stacking and is inserted the circular port of fin of these stackings and the operation of heat pipe expander is completed by existing heat exchanger.Therefore, the spacing between the fin of existing heat exchanger is processed with flange flange height and become constant.Therefore, existing heat exchanger is difficult to improve the performance of air conditioner and correspondingly changing the spacing of fin of a part of scope with the internal structure etc. of air conditioner.Therefore, the air conditioner possessing existing heat exchanger exists for heat exchanger performance and the high problem of cost.
Such as, the off-premises station of air conditioner is built-in with the storage thing of compressor shroud (holding the cover of compressor) and control dish etc. in the inside of housing.Therefore, corresponding to the allocation position of storage thing, the flowing resistance at each several part place of heat exchanger is different.But, owing to the spacing of fin of existing heat exchanger depends on flange height, therefore, it is difficult to place's flowing resistance correspondingly change spacing of fin in a part of scope of heat exchanger in each portion with heat exchanger.
In addition, it is also proposed that the fin etc. having segmentation heat exchanger, using flange height different, the structure of the spacing of fin of a part of scope of heat exchanger is thus changed.But, heat exchanger is made this structure to be needed correspondingly to prepare the progressive die of multiple fin with flange height.Or, it is necessary to prepare the mould possessing the mechanism that can adjust flange height.Therefore, when preparing multiple kinds of molds, die cost becomes replacing operation expensive, mould and becomes complicated, causes that fin manufacturing expenses become expensive.It addition, when using the mould possessing the mechanism that can adjust flange height, the maximization of the complexity of mould, maximization and thing followed forcing press causes that mould expense and forcing press expense become expensive.It addition, the heat exchanger assembling this structure needs fins different for flange height is layered in defined location, therefore assembly expenses becomes expensive.It addition, in reality, due to the restriction etc. of die size, the limit is the fin that 2～3 kinds of flange heights of preparation are different.Therefore, reality is difficult to make heat exchanger this structure.
It addition, in order to avoid this problem, it is also considered that make flange lower than spacing of fin (stacking interval), not with flange height be benchmark stacking fin manufacture heat exchanger method.But, when manufacturing existing heat exchanger in this way, in the heat pipe of toroidal section is inserted the existing heat exchanger of circular port of fin.If being intended to insert heat pipe the spacing of fin stacking fins set of each fin with regulation, then each fin will stagger, it is impossible to make to become between each fin desired spacing of fin.Therefore, when manufacturing existing heat exchanger in this way, it is necessary to fin is installed one by one on heat pipe.But, existing heat exchanger is constituted in order to install fin one by one on heat pipe, need to be inserted by heat pipe the circular port of fin in fin one by one, make this fin along the stroke of the tube axial direction moving long of heat pipe and be configured at this operation of desired position.Accordingly, it is difficult to realize making flange lower than spacing of fin (stacking interval) and not manufacture existing heat exchanger with flange height for benchmark stacking fin.
The present invention completes to solve above-mentioned this problem, and the 1st purpose is the heat exchanger obtaining a kind of spacing of fin that could alter that a part of scope and not increasing the mould expense of fin, forcing press expense and assembly expenses.It addition, the 2nd purpose of the present invention is to reduce the cost relative to heat exchanger performance by possessing this heat exchanger, it is thus achieved that the air conditioner of energy-conservation, low cost.
Solve the technical scheme of problem
The heat exchanger of the present invention includes: multiple fins, and it separates the spacing of fin of regulation and stacking；And multiple heat pipe, it separates the interval of regulation along the length direction of described fin and configures, and runs through described fin along described stacked direction；Multiple described heat pipes are sections is the heat pipe of flat pattern, the end of multiple described fin longitudinally sides forms the multiple breach in the shape corresponding with the section shape of described heat pipe, flange is formed at the edge of multiple described breach, breach inserts described heat pipe at these described, spacing of fin between a part for multiple described fins is more than spacing of fin between fin other described, and this bigger described spacing of fin is at least above the described flange height from the overhang in the plate face of described fin, i.e. described flange.
It addition, the air conditioner of the present invention includes: housing, it is formed with suction inlet and outlet；It is located at the heat exchanger of the present invention of this housing；And fan, it is located at described housing.
Invention effect
The heat exchanger of the present invention forms the breach inserted for heat pipe in the end of the length direction of fin.Therefore, it is possible to install fin from the side of heat pipe, therefore, it is possible to hold stroke that fin is installed on desired position.It is therefore not necessary to insert heat pipe to the fins set formed for the prior stacking fin of benchmark with flange, it becomes possible to manufacture heat exchanger.That is, it is not necessary to the man-hour of assembling, it becomes possible to the fin not needing the same shape of the mould of high price, forcing press is arranged on the position desired by heat pipe.It is therefore not necessary to the mould increasing fin take, forcing press expense and assembly expenses, it becomes possible to acquisition can change the heat exchanger of the spacing of fin of a part of scope.
Additionally, owing to the air conditioner of the present invention possesses the heat exchanger of the above-mentioned that present invention, therefore by correspondingly changing the spacing of fin of a part of scope of heat exchanger with the internal structure etc. of air conditioner (such as, constitute the spacing of fin because receiving the scope that thing causes the air quantity passed through to reduce than other scopes significantly), can distributor fins effectively compared with the past, therefore heat exchanger effectiveness can be improved from the viewpoint of cost performance, it is possible to obtain air conditioner energy-conservation, low cost.Additionally, in the past such performance and the air conditioner of specification that can't go wrong adopt the present invention, the number of fin can be reduced accordingly, therefore, it is possible to realize the miniaturization of off-premises station, low price while guaranteeing equal performance with being improved by above-mentioned performance the superfluous performance caused.
Accompanying drawing explanation
Fig. 1 indicates that the axonometric chart of the off-premises station of embodiments of the present invention 1.
Fig. 2 indicates that the in-built axonometric chart of the off-premises station of embodiments of the present invention 1.
The explanation figure of the compressor shroud adjacent ranges that Fig. 3 is an illustration in the off-premises station of embodiments of the present invention 1.
Fig. 4 indicates that the performance plot of " the air quantity Q of compressor shroud adjacent ranges 5 " in the off-premises station of embodiments of the present invention 1 and the dependency of " the ratio L/D of the distance D of compressor shroud adjacent ranges 5 and compressor shroud 7 and the diameter D of propeller type fan 9 ".
Fig. 5 indicates that the performance plot of the spacing of fin of the compressor shroud adjacent ranges in the off-premises station of embodiments of the present invention 1 and the dependency of the coefficient of performance.
Fig. 6 is an illustration for the component shape of the heat exchanger of the off-premises station of embodiments of the present invention 1 and the explanation figure of manufacture method.
Fig. 7 represents the heat exchanger in the off-premises station of embodiments of the present invention 2 and the vertical view cutaway drawing of control dish 8 from propeller type fan side.
Fig. 8 indicates that the in-built axonometric chart of the off-premises station of embodiments of the present invention 2.
Fig. 9 is the vertical view cutaway drawing representing the heat exchanger in the off-premises station of embodiments of the present invention 3 from propeller type fan side.
Figure 10 is the vertical view cutaway drawing representing the heat exchanger in the off-premises station of embodiments of the present invention 4 from propeller type fan side.
Figure 11 indicates that the figure of the relation between temperature efficiency ε and heat exchanger performance AK.
Figure 12 indicates that the front view of the position of the density of the fin of the heat exchanger in the off-premises station of the air conditioner in embodiments of the present invention 5.
Detailed description of the invention
Embodiment 1
About the heat exchanger of present embodiment 1, by can easily carry out the assemble method change of spacing of fin, different from the past, the spacing of fin of a part of scope is formed larger than the spacing of fin of other scopes.It addition, the air conditioner of present embodiment 1 possesses the internal structure considered in housing and has carried out the heat exchanger of the present embodiment 1 of the fin density configuration of the best, it is possible to maintain with in the past equal performance while realize energy-conservation, low cost, low price.
Hereinafter, the manufacture method of the heat exchanger of the heat exchanger of present embodiment 1, present embodiment 1 and the air conditioner of present embodiment 1 are described in detail.Additionally, below, the off-premises station of the heat exchanger to be provided with present embodiment 1 illustrates the air conditioner of present embodiment 1.
Fig. 1 indicates that the axonometric chart of the off-premises station of embodiments of the present invention 1.It addition, Fig. 2 indicates that the in-built axonometric chart of this off-premises station.Additionally, the structure of the off-premises station for present embodiment 1 easy to understand, Fig. 2 illustrate only the storage thing of the large percentage of the inner space occupying housing, eliminates the diagram of the storage thing of refrigerant piping, cross valve and valve etc..
The off-premises station 101 of present embodiment 1 is the off-premises station of the air conditioner of the business that mansion, factory etc. use.This off-premises station 101 constitutes kind of refrigeration cycle together with not shown indoor set, contains the storage things such as heat exchanger 1, propeller type fan 9, the compressor shroud 7 accommodating compressor and control dish 8 in housing 34.
Housing 34 is formed with the shape that pillar 36 (cylindrical component) connects the corner of generally square upper surface part 35a and bottom surface sections 35b, namely forms the approximately parallelepiped body shape of four side surface part openings.And, the opening of three side surface part in the opening of these four side surface part becomes suction inlet 34a.In addition it is also possible to be provided with the component etc. in latticed portion with hands etc. at suction inlet 34a in order to prevent heat exchanger 1 from contacting.It addition, the protuberance of the upper surface part formation substantially cylindrical shape at housing 34.The upper surface part of this protuberance and peripheral part opening, this peristome becomes outlet 34b.The fan guard 38 guiding the flowing from this outlet 34b air discharged it is provided with at outlet 34b.
The housing 34 constituted as described above contains heat exchanger 1, propeller type fan 9, the compressor shroud 7 accommodating compressor and control dish 8 etc. as described above.
Heat exchanger 1 be oppositely arranged at the suction inlet 34a of three side surface part openings, and be formed as overlooking the shape in U word.It is to say, off-premises station 101 be configured to heat exchanger 1 except pillar 36, be located at the grid elements of suction inlet 34a except the structure that exposes towards periphery of major part.It is (following that this heat exchanger 1 is divided into three layers heat exchanger portion along the vertical direction, when needs difference describes this three layers heat exchanger portion, from upside, it is called ground floor heat exchanger 2, second layer heat exchanger 3 and third layer heat exchanger 4 successively).It addition, these ground floor heat exchangers 2, second layer heat exchanger 3 and third layer heat exchanger 4 are further divided into two row heat exchanger portions along air by the flow direction in these heat exchanger portions respectively.
Here, the structure of above-mentioned heat exchanger 1 is only merely an example.For example, it is also possible to ground floor heat exchanger 2, second layer heat exchanger 3 and third layer heat exchanger 4 are formed heat exchanger 1.Heat exchanger 1 can also be configured to string heat exchanger.It addition, when forming suction inlet 34a in two adjacent side surface part, it is also possible to it is L-shaped shape when heat exchanger 1 being formed as and overlooks.It addition, heat exchanger 1 not necessarily to form bending section, it is also possible to combine heat exchanger portion linearly when overlooking and constitute heat exchanger 1.Additionally, describe heat exchanger 1 (detailed construction of fin and heat pipe and the manufacture method of heat exchanger 1) afterwards in detail.
Propeller type fan 9 by its peripheral part and outlet 34b in opposite directions in the way of be located in the protuberance of upper surface part 35a.That is, the off-premises station 101 of present embodiment 1 is formed as structure: by this propeller type fan 9 is rotated driving and self-forming in the side surface part of housing 34 suction inlet 34a suck extraneous air, make to carry out heat exchange between the cold-producing medium in the extraneous air of this suction and heat exchanger 1, the extraneous air after outlet 34b discharges heat exchange.
Compressor shroud 7 and control dish 8 are configured to be surrounded by heat exchanger 1 when overlooking.It is to say, on the wind path of compressor shroud 7 and control dish 8 extraneous air that is arranged in housing 34.In detail, compressor shroud 7 is located at the lower section in housing 34 in the way of being surrounded by heat exchanger 1 when overlooking.Control dish 8 is above being located in housing 34 in the way of being surrounded by heat exchanger 1 when overlooking.It addition, the side surface part not becoming suction inlet 34a of control dish 8 and housing 34 is arranged opposite to each other, this side surface part is covered by panel 37.
Here, the off-premises station 101 of present embodiment 1 is formed and makes the structure (following, the scope that this is adjacent is called compressor shroud adjacent ranges 5) that compressor shroud 7 is adjacent with a part for the third layer heat exchanger 4 of heat exchanger 1.It is to say, it is the structure within the distance specified that the off-premises station 101 of present embodiment 1 forms the distance between the compressor shroud adjacent ranges 5 of third layer heat exchanger 4 and compressor shroud 7.That is, in heat exchanger 1, the flowing resistance of compressor shroud adjacent ranges 5 is more than the flowing resistance of other scopes (hereinafter referred to as the non-adjacent scope 6 of compressor), and the air quantity of compressor shroud adjacent ranges 5 is less than the air quantity of the non-adjacent scope 6 of compressor.Therefore, in present embodiment 1, in the way of making the spacing of fin of compressor shroud adjacent ranges 5 spacing of fin more than the non-adjacent scope 6 of compressor, form heat exchanger 1.
Now, heat exchanger 1 it is provided with opposite to each other and the outlet 34b with the upper surface part being formed at housing 34 is provided with in the off-premises station 101 of present embodiment 1 of propeller type fan 9 opposite to each other at the suction inlet 34a with the side surface part being formed at housing 34, distance between the compressor shroud adjacent ranges 5 and compressor shroud 7 of third layer heat exchanger 4 when following, forms heat exchanger 1 comparatively effective described later in the way of making the spacing of fin of compressor shroud adjacent ranges 5 more than the spacing of fin of the non-adjacent scope of compressor 6.
The explanation figure of the compressor shroud adjacent ranges that Fig. 3 is an illustration in the off-premises station of embodiments of the present invention 1.This Fig. 3 represents third layer heat exchanger 4 and the vertical view cutaway drawing of compressor shroud 7 from propeller type fan 9 side.
If as it is shown on figure 3, the diameter by propeller type fan 9 is set to D, the distance between compressor shroud adjacent ranges 5 and compressor shroud 7 being set to L, then the air quantity of each several part of third layer heat exchanger 4 is as shown in Figure 4.
Fig. 4 indicates that the performance plot of " the air quantity Q of compressor shroud adjacent ranges 5 " in the off-premises station of embodiments of the present invention 1 and the dependency of " the ratio L/D of the distance L of compressor shroud adjacent ranges 5 and compressor shroud 7 and the diameter D of propeller type fan 9 ".Additionally, the rotating speed N of propeller type fan 9 is constant.
As shown in Figure 4, it is known that when L/D is less than 0.15, the flowing resistance of compressor shroud adjacent ranges 5 is relatively big, and air quantity Q is less for compressor shroud adjacent ranges 5.Therefore, heat exchanger 1 it is provided with opposite to each other and the outlet 34b with the upper surface part being formed at housing 34 is provided with in the off-premises station 101 of present embodiment 1 of propeller type fan 9 opposite to each other at the suction inlet 34a with the side surface part being formed at housing 34, when L/D is less than 0.15, in the way of making the spacing of fin of compressor shroud adjacent ranges 5 more than the spacing of fin of the non-adjacent scope of compressor 6, form heat exchanger 1 comparatively effective.
It addition, in time forming heat exchanger 1 in the way of making the spacing of fin of compressor shroud adjacent ranges 5 spacing of fin more than the non-adjacent scope 6 of compressor, for instance set the spacing of fin of compressor shroud adjacent ranges 5 as described below.
Fig. 5 indicates that the performance plot of the dependency between spacing of fin and the coefficient of performance of the compressor shroud adjacent ranges in the off-premises station of embodiments of the present invention 1.This Fig. 5 longitudinal axis represents the coefficient of performance (COP) of the air conditioner employing off-premises station 101.It addition, the k (=fp2/fp1) of the transverse axis of this Fig. 5 ratio that is denoted as between the spacing of fin fp2 of compressor shroud adjacent ranges 5 and the spacing of fin fp1 of the non-adjacent scope 6 of compressor.
According to Fig. 5, when k (=fp2/fp1)=1, namely, when the spacing of fin fp2 of compressor shroud adjacent ranges 5 is identical with the spacing of fin fp1 of the non-adjacent scope of compressor 6, the coefficient of performance (COP) employing the air conditioner of off-premises station 101 becomes the state close to maximum.It addition, the region of the value close to spacing of fin fp1 (the spacing of fin fp2 become) is even if becoming the also less region of change changing spacing of fin fp2, the coefficient of performance (COP) near k=1.Additionally, along with k (=fp2/fp1) becomes big, that is, along with the spacing of fin fp2 of compressor shroud adjacent ranges 5 becomes big relative to the spacing of fin fp1 of the non-adjacent scope 6 of compressor, the coefficient of performance (COP) employing the air conditioner of off-premises station 101 reduces.Therefore, in present embodiment 1, in order to prevent the coefficient of performance (COP) causing employing the air conditioner of off-premises station 101 because excessively increasing the spacing of fin fp2 of compressor shroud adjacent ranges 5 from excessively reducing, so that the mode of more than 95% (in Fig. 51 < k≤b) when the coefficient of performance (COP) such as employing the air conditioner of off-premises station 101 becomes k (=fp2/fp1)=1 sets the coefficient of performance (COP) of the air conditioner employing off-premises station 101.
The details > of < heat exchanger 1
Then, heat exchanger 1 is described in detail.
Fig. 6 is an illustration for the component shape of the heat exchanger of the off-premises station of embodiments of the present invention 1 and the explanation figure of manufacture method.
First, use Fig. 6 that the detailed construction of heat exchanger 1 is described.
Heat exchanger 1 is following fin tube type heat exchanger: multiple fins 12 of it spacing of fin including separating regulation and stacking and the length direction along fin 12 separate the compartment of terrain configuration of regulation and the stacked direction along fin 12 runs through multiple heat pipes 10 of fin 12.
The air that heat pipe 10 supplies and flows through between fin 12 carries out the cold-producing medium circulation of heat exchange.The section of heat pipe 10 forms flat pattern (such as oblong shape), is divided into multiple stream (hole) by partition wall inside it.Each heat pipe 10 along section shape long axis direction insert fin 12 described later breach 13.
Fin 12 is such as the thin plate of approximately parallelepiped body.The interval separating regulation in the end of the length direction side of this fin 12 forms multiple breach 13.These breach 13 are the positions inserted for heat pipe 10 as described above, and are formed as the shape corresponding with the section shape of heat pipe 10.In present embodiment 1, breach 13 is formed as U-shaped groove shape, and the A/F of end is roughly equal with the width (namely, the length of the short-axis direction of section) of heat pipe 10.It addition, for increasing the purpose of fin 12 and the contact area of heat pipe 10 or guaranteeing the purpose etc. of fin 12 and the fixing intensity of heat pipe 10 at the edge of these breach 13, to be formed generally perpendicularly flange 14 with the plate face of fin 12.In addition, the height (overhang that flange 14 is prominent from the plate face of fin 12) of flange 14 is at least below the spacing of fin of compressor shroud adjacent ranges 5, and the spacing of fin of this compressor shroud adjacent ranges 5 is formed bigger than the spacing of fin of the non-adjacent scope of the compressor of heat exchanger 16.It addition, form multiple tilting slits (not shown) of circulating direction (namely, the short side direction of fin 12) opening towards the air flowed through between fin 12 on the surface of each fin 12.Slit is tilted, it is possible to block, update the temperature interlayer on the surface of fin 12 such that it is able to improve the heat exchanger effectiveness flowing through between the air between fin 12 and fin 12 by being formed.
In addition, in multiple documents, with by the heat pipe of circular cross section shape compared with the existing heat exchanger that fin combines, the section heat exchanger that to be flat pattern and the heat pipe being internally divided into multiple stream combine with fin can be obtained equal or above volume performance ratio.
It follows that the manufacture method of heat exchanger 1 is illustrated.
The fin 12 of heat exchanger 1 is by cutting out from the thin plate of the aluminium sheet etc. being wound in spool in the form of a ring (tabular component) and be produced.Specifically, first, near the end of thin plate, multiple pilot hole 15 is formed along the conveying direction of thin plate.Then, the thin plate feed mechanism of high-speed blanking press uses these pilot hole 15 (such as, by inserting pin etc. to pilot hole 15) index(ing) feed thin plate (arrows 16 with reference to illustrating in Fig. 6) in high-speed blanking press as thin plate feed motion.It addition, be provided with progressive die in high-speed blanking press, when index(ing) feed thin plate in high-speed blanking press, high-speed blanking press pressure forming successively becomes the open pore of breach 13, flange 14, tilts slit etc..Thus, from the thin plate that high-speed blanking press is sent, form the fin continuum 17 making fin 12 be connected.
Above-mentioned fin continuum 17 is located at the shearing device cut-out in the downstream of high-speed blanking press and is separated into fin 12 (arrow 18 with reference to illustrating as cut-out action in Fig. 6) one by one.Then, the so cut-off fin 12 separated is installed on heat pipe 10 as described below.
In detail, the production line of the heat exchanger 1 of present embodiment 1 has workbench.Upper surface part at this workbench separates the compartment of terrain of regulation and configures multiple heat pipes 10.Additionally, being provided with the conveying mechanism being such as made up of servo motor, ball-screw and linear motion guide rail etc. on this workbench, the tube axial direction (namely, the stacked direction of fin 12) along heat pipe 10 positions (arrow 21 with reference to illustrating in Fig. 6) as spacing feed motion by spacing feed motion.On the other hand, at the insertion apparatus being arranged over such as being made up of cam and servo control mechanism etc. of workbench.This insertion apparatus includes holding the handle sturcture of the fin 12 that cut-off device cuts off and makes the fin 12 of holding rotate the mechanism that the open side end of breach 13 is rotated down.
Therefore, insertion apparatus is utilized to hold the fin 12 that cut-off device cuts off, the fin 12 making holding rotates and makes the open side end of breach 13 down, fin 12 is made to drop on workbench, thus starting the peristome side from the breach 13 of fin 12 this breach 13 is inserted on the top of heat pipe 10, press-in fin 12, until the top of portion's thermal contact conductance pipe 10 in breach 13, fin 12 is installed on configuration multiple heat pipes 10 (arrow 19 with reference to illustrating as the movement of fin 12, spinning movement in Fig. 6) on the table.Then, during insertion apparatus repeats the installation procedure of this fin 12, namely from fin 12 being installed on heat pipe 10 to the period that afterwards next fin 12 is installed on heat pipe 10, make workbench only move prescribed distance along the tube axial direction of heat pipe 10, thus fin 12 is installed on heat pipe 10 with separating desired spacing of fin with the most end of the fin being installed on heat pipe 10.
The spacing feed motion 21 of the cut-out action 18 of above-mentioned fin 12, movement, spinning movement 19 and heat pipe 10 is sequentially carried out in the way of making insertion apparatus Tong Bu with the conveying mechanism of workbench and following the endless belt feed motion 16 of high-speed blanking press.Additionally, the synchronism deviation about high-speed blanking press Yu insertion apparatus is lowered in the following way, makes thin plate relax in the feed path of the thin plate of high-speed blanking press upstream side, and the buffer of material is set, while detection slack, make forcing press stroke increase and decrease.
It addition, utilize the controller of conveying mechanism to set the spacing amount of movement of above-mentioned spacing feed motion 21.In detail, for constituting the fins set 22 of the compressor shroud adjacent ranges 5 of the less scope of air quantity in heat exchanger 1, big spacing amount of movement is set.For constituting the fins set 23 of the non-adjacent scope 6 of compressor of the bigger scope of air quantity in heat exchanger 1, spacing amount of movement is set as little amount of movement.By with such spacing amount of movement by the number required for fin 12 stacking, thus complete by increase spacing of fin and the fins set 22 of stacking with reduce spacing of fin and fins set assembled portion 24 (being assemble midway in figure 6) that the fins set 23 of stacking is constituted.
The fins set assembled portion 24 completed is pre-coated with carrying out the soldering in stove in the solder of heat pipe 10 by use with heat pipe 10 and is fixed.Or, the fins set assembled portion 24 completed and heat pipe 10 are coated heat pipe 10 and are carried out bonding with the bonding agent in the gap of the flange 14 of fin 12 by using and fixed.Afterwards, the connection completing tube parts when overlapping two row fins set assembled portion 24 and the U word undertaken by twice L word bending are shaped, and complete the assembling of heat exchanger 1 (ground floor heat exchanger 2, second layer heat exchanger 3, third layer heat exchanger 4).
Above, in present embodiment 1, configuration heat pipe 10 at a prescribed interval, these heat pipes 10 are installed fin 12 one by one, manufactures the heat exchanger 1 (ground floor heat exchanger 2, second layer heat exchanger 3, third layer heat exchanger 4) that it is bigger than the spacing of fin of the non-adjacent scope of compressor 6 that the spacing of fin of compressor shroud adjacent ranges 5 is formed as.Therefore, being different from the manufacture method of the existing heat pipe inserting toroidal section to the circular port being the fins set of the prior stacking of benchmark with flange, the manufacture method of the heat exchanger 1 of present embodiment 1 need not be used for when changing the spacing of fin of a part of scope of heat exchanger 1 changing the complicated mould of flange height or large pressing machine.It addition, the manufacture method of the heat exchanger 1 of present embodiment 1 is when changing the spacing of fin of a part of scope of heat exchanger 1, only by changing the control instruction value of the spacing amount of movement of conveying mechanism, it becomes possible to immediately this spacing of fin is changed over all size.
Additionally, the manufacture method of the heat exchanger 1 of present embodiment 1 also different from existing make flange lower than spacing of fin and not with flange height be benchmark stacking fin manufacture the manufacture method of heat exchanger (in every fin, heat pipe is inserted to the circular port of fin, make this fin along the stroke of the tube axial direction moving long of heat pipe the manufacture method being configured at desired position), from the side of heat pipe 10, fin 12 can be installed, therefore, it is possible to shorten from heat pipe 10 being inserted the breach 13 of fin 12 to the stroke being configured at by fin 12 desired position.Therefore fin under the high speed motion that can follow the such as drawing velocity of the high-speed blanking press of hundreds of SPM (strokes per minute amount), can be installed on the position desired by heat pipe 10 with various spacings of fin by the manufacture method of the heat exchanger 1 of present embodiment 1.
Additionally, the heat exchanger 1 that constitute like that about present embodiment 1, off-premises station 101 possesses, the spacing of fin becoming the compressor shroud adjacent ranges 5 of the scope that flowing resistance is relatively big and air quantity is less is formed larger than the spacing of fin of the non-adjacent scope 6 of compressor, and the non-adjacent scope 6 of compressor becomes big compared to compressor shroud adjacent ranges 5 air quantity.Even if it is to say, this heat exchanger 1 is less at air quantity and increase spacing of fin, the coefficient of performance (COP) change also less scope in form spacing of fin significantly.Therefore, this heat exchanger 1 and fin add up to number identical with this heat exchanger 1 and compared with making the heat exchanger that the spacing of fin between whole fin is the same, heat exchanger effectiveness can be improved from the viewpoint of cost performance.Therefore, it is possible to make the off-premises station 101 possessing this heat exchanger 1 compared to realizing energy-conservation, cost degradation in the past.Additionally, the off-premises station of such performance and no problem in the past adopts the structure of off-premises station 101 of present embodiment 1, can with improved, by above-mentioned performance, the remaining performance caused and reduce the number of fin 12 accordingly, therefore, it is possible to realize the miniaturization of off-premises station, low price while guaranteeing equal performance.It addition, by the insertion number reducing fin, it is also possible to shorten manufacturing time.
In addition, in present embodiment 1, in third layer heat exchanger 4, only expand the spacing of fin of a part of scope (compressor shroud adjacent ranges 5), but when compressor shroud 7 along short transverse bigger, it is also possible in the second layer heat exchanger 3 being configured at above third layer heat exchanger 4 and ground floor heat exchanger 2, expand the spacing of fin of a part of scope.Additionally, in present embodiment 1, heat exchanger 1 is divided into three layers heat exchanger portion (ground floor heat exchanger 2, second layer heat exchanger 3, third layer heat exchanger 4), but heat exchanger 1 both can be divided into two-layer heat exchanger portion, it is also possible to be divided into the heat exchanger portion of more than four layers.It is self-evident that, adopts this structure also can obtain the effect above.
It addition, in present embodiment 1, as the storage thing (namely, being configured at the storage thing of the vicinity of heat exchanger 1) increasing flowing resistance, it is illustrated for compressor shroud 7, but this is only an example.When being configured with the storage thing except compressor shroud 7 near heat exchanger 1, by the spacing of fin of the scope near this storage thing in heat exchanger 1 being formed larger than the spacing of fin of other scopes, it is also possible to obtain the effect above.
Embodiment 2.
In embodiment 1, as an example of the spacing of fin of a part of scope changing heat exchanger 1, describe the example of the spacing of fin changing the compressor shroud adjacent ranges 5 near compressor shroud 7.But, the scope changing spacing of fin is not limited to compressor shroud adjacent ranges 5.Can also together with compressor shroud adjacent ranges 5 or be different from compressor shroud adjacent ranges 5 ground and change the spacing of fin of following this scope of heat exchanger 1.Additionally, in present embodiment 2, about not specifically described structure, identical with embodiment 1, use identical accompanying drawing labelling to describe identical function, structure.
Fig. 7 represents the heat exchanger in the off-premises station of embodiments of the present invention 2 and the vertical view cutaway drawing of control dish 8 from propeller type fan side.
Identically with embodiment 1, the off-premises station 101 of present embodiment 2 is provided with control dish 8 at the side face of housing 34.This control dish 8 generates heat owing to off-premises station 101 operates, it is therefore desirable to cool down control dish 8 in the process of the operating of off-premises station 101.Therefore, the off-premises station 101 of present embodiment 2 have employed and utilizes by the structure of the flowing cooling control dish 8 of the produced air of the effect of propeller type fan 9.
It addition, in present embodiment 2, in order to improve the cooling effect of control dish 8, the spacing of fin being configured at the end of the heat exchanger 1 of control dish 8 side is formed larger than the spacing of fin of other scopes of heat exchanger 1.Additionally, in present embodiment 2, also using and be identically formed the heat exchanger 1 into U-shaped shape with embodiment 1.Therefore, the spacing of fin that the spacing of fin at the both ends 25 of the heat exchanger 1 of U-shaped shape is formed larger than other scopes of heat exchanger 1 it is formed into.
Hereinafter, the spacing of fin of other scopes by the spacing of fin at the both ends 25 of heat exchanger 1 is formed larger than heat exchanger 1 is described and improves the reason of the cooling effect of control dish 8.
Fig. 8 indicates that the in-built axonometric chart of the off-premises station 101 of embodiments of the present invention 2.Blank arrow shown in this Fig. 8 represents the flowing of the air of the inside of off-premises station 101.Additionally, in fig. 8, in order to make the understanding of the flowing to this air become easy, eliminate the diagram receiving thing beyond heat exchanger 1 and propeller type fan 9.
Air has the character along wall flowing.Therefore, as shown in Figure 8, heat exchanger 1 it is provided with opposite to each other and the outlet 34b with the upper surface part being formed at housing 34 is provided with in propeller type fan 9, present embodiment 2 off-premises station 101 opposite to each other at the suction inlet 34a with the side surface part being formed at housing 34, the both ends 25 of the air accumulation of heat exchanger 1 heat exchanger 1 near panel 37 are passed through, flow upward in both ends 25 along heat exchanger 1, by the propeller type fan 9 on housing 34 top, then from outlet 34b aerofluxus.
Now, by making the spacing of fin at the both ends 25 of heat exchanger 1 reduce the flowing resistance at both ends 25 more than the spacing of fin of other scopes of heat exchanger 1, the air quantity that the both ends 25 of automatic heat-exchanger 1 flow into can be increased, it is possible to increase the air quantity flowed along the both ends 25 of heat exchanger 1.Therefore, by making the spacing of fin spacing of fin more than other scopes of heat exchanger 1 at the both ends 25 of heat exchanger 1, it is possible to increase the cooling effect of control dish 8.
And, by make the spacing of fin at the both ends 25 of heat exchanger 1 more than the spacing of fin of other scopes of heat exchanger 1 reduce the air by both ends 25 and flow through heat exchanger 1 inside cold-producing medium between heat exchange amount.Therefore, when cooling operation, it is possible to reduce the temperature of both ends 25 leaked-in air of automatic heat-exchanger 1, namely, the temperature of the air flowed in the both ends 25 along heat exchanger 1 can be reduced.Therefore, when cooling operation, reduced the cooling effect also being able to improve control dish 8 by the temperature of this air.
Above, in the off-premises station 101 constituted as present embodiment 2, the side face at housing 34 arranges control dish 8, and the spacing of fin being configured at the end of the heat exchanger 1 of this control dish 8 side is formed as bigger than the spacing of fin of other scopes of heat exchanger 1.Therefore, it is possible to increase the cooling air quantity of control dish 8, it is possible to increase the cooling effect of control dish 8.
Embodiment 3.
The example of spacing of fin of a part of scope changing heat exchanger 1 is not limited to shown in embodiment 1 and embodiment 2, it is also possible to together with the structure of at least one in embodiment 1 and embodiment 2 or be different from the spacing of fin of the following this scope changing heat exchanger 1 structurally of embodiment 1 and embodiment 2.Additionally, in present embodiment 3, about not specifically described structure, identical with embodiment 1 or embodiment 2, use identical accompanying drawing labelling to describe identical function, structure.
Fig. 9 is the vertical view cutaway drawing representing the heat exchanger in the off-premises station of embodiments of the present invention 3 from propeller type fan side.Blank arrow shown in this Fig. 9 represents the flowing of the air of the inside of off-premises station 101.
It is (following that the heat exchanger 1 of present embodiment 3 is divided into two row heat exchanger portions along air by the flow direction of heat exchanger 1, the heat exchanger portion being configured at the upstream side of the flow direction of this air is called outside heat exchangers 1b, the heat exchanger portion being configured at downstream is called inner side heat exchanger 1a).It addition, the spacing of fin being formed as the spacing of fin of the inner side heat exchanger 1a of the part as heat exchanger 1 than outside heat exchangers 1b is big.
As it is shown in figure 9, first pass through outside heat exchangers 1b by heat exchanger 1 air discharged by propeller type fan 9, then pass through inner side heat exchanger 1a.Therefore, if the temperature of the cold-producing medium of the inside flowing through heat exchanger 1 is assumed to constant, then utilize outside heat exchangers 1b to carry out the variations in temperature of the air after heat exchange, and flow out the air of outside heat exchangers 1b and the temperature difference flowed through between the cold-producing medium within heat exchanger 1 diminishes.It is to say, due to less by the temperature difference between the air of inner side heat exchanger 1a and the cold-producing medium flowing through heat exchanger 1 (namely, inner side heat exchanger 1a), therefore heat exchange amount diminishes.
Therefore, in present embodiment 3, relative to outside heat exchangers 1b, make the spacing of fin of the less inner side heat exchanger 1a of the heat exchange amount between air be formed significantly.
Above, in the off-premises station 101 constituted as present embodiment 3, less and the fin of the less inner side heat exchanger 1a of the help of heat exchange performance is inserted number by reducing heat exchange amount, it is possible to maintain with in the past equal performance while realize small-sized, the low price of off-premises station 101.
Additionally, in present embodiment 3, pass through the flow direction of heat exchanger 1 along air and heat exchanger 1 be divided into two row heat exchanger portions, naturally it is also possible to pass through the flow direction of heat exchanger 1 along air and heat exchanger 1 is divided into the heat exchanger portion that three row are above.Now, as long as among at least two in these heat exchanger portions, the spacing of fin being configured at the heat exchanger portion in downstream is formed larger than being configured at the spacing of fin in the heat exchanger portion of upstream side, it becomes possible to obtain the effect shown in present embodiment 3.
Here, in present embodiment 3, although the description of the off-premises station 101 of the heat exchanger 1 possessing the spacing of fin forming inner side heat exchanger 1a relative to outside heat exchangers 1b significantly, but the heat exchanger 1 forming the spacing of fin of outside heat exchangers 1b relative to inner side heat exchanger 1a significantly can also be installed on off-premises station 101.This structure is particularly effective means when the lower-temperature external air ambient easily producing frosting arranges off-premises station 101.
When the existing off-premises station that outside heat exchangers is identical with the spacing of fin of inner side heat exchanger being arranged on heat exchanger and producing under the such lower-temperature external air ambient of frosting, compared with the heat exchanger of inner side, the frosting quantitative change of outside heat exchangers is many, becomes the frosting distribution being partial to outside heat exchangers.The wind path that accordingly, there exist in outside heat exchangers between fin is blocked in early days, possesses the problem that the heating performance of the air conditioner of this off-premises station reduces.This is because, air first passes through outside heat exchangers, then passes through inner side heat exchanger, and therefore the absolute humidity amount of air is many compared with the frosting quantitative change of big outside heat exchangers.
Therefore, in the variation of present embodiment 3, make the spacing of fin of the frosting degree outside heat exchangers 1b more relative to inner side heat exchanger 1a be formed significantly.By so constituting heat exchanger 1 such that it is able to make the frosting of inner side heat exchanger 1a and outside heat exchangers 1b be evenly distributed, postpone the closure of wind path between fin, therefore, it is possible to improve the heating performance of the air conditioner possessing off-premises station 101.
In addition, in the variation of present embodiment 3, pass through the flow direction of heat exchanger 1 along air and heat exchanger 1 is divided into two row heat exchanger portions, but the flow direction of heat exchanger 1 can certainly be passed through along air and heat exchanger 1 is divided into the heat exchanger portion that three row are above.Now, as long as among at least two in these heat exchanger portions, the spacing of fin being configured at the heat exchanger portion of upstream side is formed larger than being configured at the spacing of fin in the heat exchanger portion in downstream.By such composition, it is possible to make the frosting of heat exchanger 1 be evenly distributed, postpone the closure of wind path between fin, therefore, it is possible to improve the heating performance of the air conditioner possessing off-premises station 101.
Embodiment 4.
Additionally, the example of spacing of fin of a part of scope changing heat exchanger 1 is not limited to embodiment 1～embodiment 3, it is also possible to together with the structure of at least one party in embodiment 1～embodiment 3 or be different from the spacing of fin of the following this scope changing heat exchanger 1 structurally of embodiment 1～embodiment 3.Additionally, in present embodiment 4, about not specifically described structure, identical with embodiment 1～embodiment 3, use identical accompanying drawing labelling to describe identical function, structure.
Figure 10 is the vertical view cutaway drawing representing the heat exchanger in the off-premises station of embodiments of the present invention 4 from propeller type fan side.
The heat exchanger 1 of present embodiment 4 is U-shaped shape when being formed as and overlooking.It is to say, heat exchanger 1 is made up of two place's bending sections 29 and three place's line parts 30 (being considered as the heat exchanger sections of linearity when overlooking).And, about the heat exchanger 1 of present embodiment 4, the spacing of fin making bending section 29 is different from the spacing of fin of line part 30.
In the bending operation of heat exchanger 1, the fin 12 of bending section 29 is sometimes deformed or bent.In this case, by such as making the spacing of fin spacing of fin more than line part 30 of the bending section 29 of heat exchanger 1, even if the Leading Edge Deformation of fin 12 or fin 12 create bending when when bending forming, it is also possible to guarantee the ventilation of bending section 29.In addition, such as by making the spacing of fin spacing of fin less than line part 30 of the bending section 29 of heat exchanger 1, namely by increasing the fin stacking number of bending section 29, the stress every fin 12 applied when bending forming can be reduced, it is thus possible to suppress the deformed or bent of fin 12, it can be ensured that the ventilation of bending section 29.
Above, by constituting heat exchanger 1 as present embodiment 4, it can be ensured that the ventilation of bending section 29, therefore, it is possible to utilize bending section 29 to be effectively taking place heat exchange.Therefore, it is possible to improve the heat exchanger effectiveness of heat exchanger 1 such that it is able to obtain energy-conservation and small-sized off-premises station 101.
Additionally, pass through the spacing of fin making the bending section 29 of heat exchanger 1 spacing of fin more than line part 30, it is also possible to obtain following this effect.
When being U-shaped shape when heat exchanger 1 is bent to form vertical view, being configured at the fin 12 of bending section 29 each other, compared with the spacing of fin in outside, the spacing of fin of the inner side of bending section 29 diminishes.It addition, the outer circumferential side at bending section 29 arranges pillar 36 (with reference to Fig. 1).As a result, compared with line part 30, the ventilation of bending section 29 tails off, and temperature efficiency produces to be distributed (temperature efficiency is different with line part 30 place at bending section 29) from line part 30 at bending section 29.Particularly, when being the existing heat exchanger of U-shaped shape when spacing of fin being formed as the same heat exchanger and being bent to form as overlooking, compared to making the spacing of fin of bending section 29 of heat exchanger 1 more than the heat exchanger 1 of the present embodiment 4 of the spacing of fin of line part 30, bending section becomes big with the difference of the temperature efficiency of line part.
Here, use Figure 11 that temperature efficiency ε and heat exchanger performance AK is illustrated.
Figure 11 indicates that the figure of the relation of temperature efficiency ε and heat exchanger performance AK.In this Figure 11, represent the temperature efficiency ε of the heat exchanger 1 (making the spacing of fin of bending section 29 of heat exchanger 1 more than the heat exchanger 1 of the spacing of fin of line part 30) of present embodiment 4 by solid circles.It addition, represent the temperature efficiency ε of existing heat exchanger (be formed as spacing of fin being U-shaped shape when consistent heat exchanger is bent into vertical view and formed heat exchanger) by empty circles.Additionally, the total number of the fin of the heat exchanger 1 of present embodiment 4 is identical with existing heat exchanger.
Temperature efficiency ε (=heat exchanger outlet air themperature-heat exchanger entrance air themperature)/(cold-producing medium saturation temperature-heat exchanger entrance air themperature) increases (wind speed becomes big), the feature that this temperature efficiency ε reduces if having ventilation.Therefore, the temperature efficiency (ε 2, ε 2 ') of the bending section of the heat exchanger 1 of present embodiment 4 and existing heat exchanger is above the temperature efficiency (ε 1, ε 1 ') of line part.Additionally, if being conceived to the temperature efficiency of line part, when having made the heat exchanger 1 of present embodiment 4 with the fin of identical number with existing heat exchanger, make the spacing of fin of the bending section 29 temperature efficiency ε 1 ' more than the heat exchanger 1 of the present embodiment 4 of the spacing of fin of line part 30 more than the temperature efficiency ε 1 of the line part of existing heat exchanger.Additionally, if being conceived to the temperature efficiency of bending section, when having made the heat exchanger 1 of present embodiment 4 with the fin of identical number with existing heat exchanger, make the spacing of fin of the bending section 29 temperature efficiency ε 2 more than the heat exchanger 1 of the present embodiment 4 of the spacing of fin of line part 30 less than the temperature efficiency ε 2 ' of the line part of existing heat exchanger.
Here, as shown in figure 11, heat exchanger performance AK (heat conductivility) and temperature efficiency ε have along with heat exchanger performance AK increase and temperature efficiency ε move closer to 1 this feature.Therefore, in the line part that ventilation is more, by making the heat exchanger 1 of present embodiment 4 reduce spacing of fin compared to existing heat exchanger, thus improving temperature efficiency with the degree of ε 1 '-ε 1.It addition, in the less bending section of ventilation, by making the heat exchanger 1 of present embodiment 4 increase spacing of fin compared to existing heat exchanger, thus the temperature efficiency reduced with the degree of ε 2 '-ε 2.
But, the temperature efficiency (ε 1, ε 1 ') with line part diminishes compared with the temperature efficiency of bending section (ε 2, ε 2 '), temperature efficiency ε along with heat exchanger performance AK increase and move closer to 1 this features described above.Therefore, the improvement amount (ε 1 '-ε 1) constituting the temperature efficiency that heat exchanger causes as present embodiment 4 becomes big, and the reducing amount (ε 2 '-ε 2) constituting the temperature efficiency that heat exchanger causes as present embodiment 4 becomes very little.
It is to say, become (ε 1 '-ε 1) > (ε 2 '-ε 2).
Therefore, as present embodiment 4, by increasing the spacing of fin of the higher bending section 29 of temperature efficiency ε and reducing the spacing of fin of line part 30 relatively low for temperature efficiency ε and make the average temperature efficiency of heat exchanger 1, the i.e. heat exchanger effectiveness of heat exchanger 1 entirety improve significantly.
Embodiment 5.
Additionally, the example of spacing of fin of a part of scope changing heat exchanger 1 is not limited to embodiment 1～embodiment 4, it is also possible to together with the structure of at least one party in embodiment 1～embodiment 4 or be different from the spacing of fin of the following this scope changing heat exchanger 1 structurally of embodiment 1～embodiment 4.Additionally, in present embodiment 5, about not specifically described structure, identical with embodiment 1～embodiment 3, use identical accompanying drawing labelling to describe identical function, structure.
Figure 12 indicates that the in-built front view of the off-premises station of embodiments of the present invention 5.Additionally, in fig. 12, the diagram receiving thing beyond heat exchanger 1 and propeller type fan 9 is eliminated.
The heat exchanger 1 of present embodiment 5 is divided into three layers heat exchanger portion (ground floor heat exchanger 2, second layer heat exchanger 3, third layer heat exchanger 4) along the vertical direction.And, the spacing of fin 33 of third layer heat exchanger 4 is formed larger than the spacing of fin 32 of second layer heat exchanger 3, the spacing of fin 32 of second layer heat exchanger 3 is formed as the spacing of fin more than 31 of ground floor heat exchanger 2.
Be provided with heat exchanger 1 opposite to each other and the outlet 34b with the upper surface part being formed at housing 34 is provided with in the off-premises station 101 of present embodiment 1 of propeller type fan 9 opposite to each other at the suction inlet 34a with the side surface part being formed at housing 34, by the air quantity of each several part of heat exchanger 1 difference according to the distance from propeller type fan 9 and different.In detail, diminished compared to by the air quantity of ground floor heat exchanger 2 by the air quantity of third layer heat exchanger 4.Therefore, in present embodiment 5, relative to ground floor heat exchanger 2, make the spacing of fin of the less third layer heat exchanger 4 of the heat exchange amount between air be formed significantly.
As described above, less and the fin of the less third layer heat exchanger 4 of the help of heat exchange performance is inserted number by reducing air quantity, it is possible to maintain with in the past equal performance while realize small-sized, the low price of air conditioner.
Additionally, in present embodiment 5, along the vertical direction heat exchanger 1 is divided into three layers heat exchanger portion, but certainly heat exchanger 1 both can be divided into two-layer heat exchanger portion, it is also possible to heat exchanger 1 is divided into the heat exchanger portion of more than four layers.Now, as long as among at least two in these heat exchanger portions, the spacing of fin being configured at the heat exchanger portion of lower section is formed as less than the spacing of fin in the heat exchanger portion being disposed above, it becomes possible to obtain the effect shown in present embodiment 5.
But, in above-mentioned embodiment 1～embodiment 5, the present invention is described for the off-premises station 101 forming outlet 34b in the upper surface part of housing 34, even if the off-premises station that the side surface part at housing is formed outlet implements the present invention, it is also possible to obtain the effect shown in embodiment 1～embodiment 5.
Additionally, in above-mentioned embodiment 1～embodiment 5, the heat exchanger 1 during to overlook being U-shaped shape describes the present invention, but the shape of heat exchanger is arbitrary, and no matter how the shape of heat exchanger can both obtain the effect shown in embodiment 1～embodiment 5.
Additionally, in above-mentioned embodiment 1～embodiment 5, describe the present invention for the off-premises station 101 possessing a heat exchanger 1 (heat exchanger being made up of multiple heat exchanger portions), but also be able to obtain the effect shown in embodiment 1～embodiment 5 in the off-premises station possessing multiple heat exchanger 1.
Additionally, in above-mentioned embodiment 1～embodiment 5, the present invention is described for the off-premises station 101 possessing propeller type fan 9, but in the off-premises station of the fan possessed except propeller type fan 9, it is also possible to obtain the effect shown in embodiment 1～embodiment 5.
It addition, in above-mentioned embodiment 1～embodiment 5, describe the present invention for off-premises station 101, but also certainly be able to indoor set is implemented the present invention.
The explanation of accompanying drawing labelling
null1 heat exchanger，Heat exchanger inside 1a，1b outside heat exchangers，2 ground floor heat exchangers，3 second layer heat exchangers，4 third layer heat exchangers，5 compressor shroud adjacent ranges，The 6 non-adjacent scopes of compressor，7 compressor shroud，8 control dishes，9 propeller type fans，10 heat pipes，12 fins，13 breach，14 flange，15 pilot holes，16 thin plate feed motions，17 fin continuuies，18 cut-out actions，19 move、Spinning movement，21 spacing feed motions，22 fins set，23 fins set，24 fins set assembled portion，25 ends，29 bending sections，30 line parts，The spacing of fin of 31 ground floor heat exchangers 2，The spacing of fin of 32 second layer heat exchangers 3，The spacing of fin of 33 third layer heat exchangers 4，34 housings，34a suction inlet，34b outlet，35a upper surface part，35b bottom surface sections，36 pillars，37 panels，38 fan guards，101 off-premises stations.

Claims (12)

1. a manufacture method for heat exchanger, this heat exchanger includes:
Multiple fins, it separates the spacing of fin of regulation and stacking；And
Multiple heat pipes, it separates the interval of regulation along the length direction of described fin and configures, and runs through described fin along the stacked direction of described fin；
Multiple described heat pipes are sections is the heat pipe of flat pattern,
The end of multiple described fin longitudinally sides forms the multiple breach in the shape corresponding with the section shape of described heat pipe,
Breach inserts described heat pipe at these described,
It is characterized in that,
The manufacture method of described heat exchanger is repeatedly performed following first operation and the second operation:
In described first operation, the interval of regulation will be separated and the multiple described heat pipe that configures is carried along the tube axial direction of heat pipe these described according to spacing,
In described second operation, by described heat pipe, from the side of described heat pipe, lateral described breach inserts, and is arranged on by described fin on multiple described heat pipe,
By changing the amount of movement that the spacing of described first operation is carried, manufacturing fins set assembled portion, this fins set assembled portion makes spacing of fin between a part for multiple described fin more than spacing of fin between fin other described.
2. the manufacture method of heat exchanger according to claim 1, it is characterised in that
Described fin forms flange at the edge of described breach,
Make the bigger described spacing of fin height at least above the described flange overhang from the plate face of described fin and described flange.
3. a manufacture method for air conditioner, this air conditioner includes:
Housing, it is formed with suction inlet and outlet；
Heat exchanger, it is located at this housing；And
Fan, it is located at described housing,
It is characterized in that, manufacture described heat exchanger by the manufacture method of the heat exchanger described in claim 1 or 2.
4. the manufacture method of air conditioner according to claim 3, it is characterised in that
In described housing, the wind path between described heat exchanger and described fan contains storage thing,
Distance between described heat exchanger and described storage thing becomes the described spacing of fin that the spacing of fin of the scope within the distance of regulation becomes bigger.
5. the manufacture method of air conditioner according to claim 4, it is characterised in that
Described housing forms described suction inlet at least one side surface part, forms described outlet in upper surface part,
Described heat exchanger and this suction inlet are oppositely arranged,
Described fan is propeller type fan, and is oppositely arranged with described outlet,
The diameter of this propeller type fan is being set to D, when the distance between described heat exchanger and described storage thing is set to L,
The spacing of fin of the scope of the relation meeting L/D≤0.15 of described heat exchanger becomes bigger described spacing of fin.
6. the manufacture method of the air conditioner according to claim 4 or 5, it is characterised in that
Bigger described spacing of fin is being set to fp2, when the spacing of fin between other described fins is set to fp1,
Fp2 is set as follows, being formed as the coefficient of performance when heat exchanger of fp1 is used in this air conditioner relative to the spacing of fin of the described fin of the scope that the spacing of fin in this heat exchanger becomes fp2, the coefficient of performance of this air conditioner is more than 95%.
7. the manufacture method of the air conditioner according to claim 4 or 5, it is characterised in that
Described storage thing is control dish, and a side surface part of described housing is located at by this control dish,
Described suction inlet is at least formed on the side surface part of described housing, and this side surface part is adjacent with the side surface part being configured with described control dish,
Described heat exchanger and this suction inlet are oppositely arranged,
The spacing of fin of the end of the described control dish side in described heat exchanger becomes bigger described spacing of fin.
8. the manufacture method of air conditioner according to claim 3, it is characterised in that
Described heat exchanger is divided into multiple heat exchanger portion along air by the flow direction of this heat exchanger,
In at least one in these divided multiple described heat exchanger portions, it is configured at the spacing of fin in described heat exchanger portion in downstream more than the spacing of fin in the described heat exchanger portion being configured at upstream side.
9. the manufacture method of air conditioner according to claim 3, it is characterised in that
Described heat exchanger is divided into multiple heat exchanger portion along air by the flow direction of this heat exchanger,
In at least one in these divided multiple described heat exchanger portions, it is configured at the spacing of fin in described heat exchanger portion of upstream side more than the spacing of fin in the described heat exchanger portion being configured at downstream.
10. the manufacture method of air conditioner according to claim 3, it is characterised in that
At the position becoming bigger described spacing of fin, the bending of described fins set assembled portion is formed bending section,
It is configured at spacing of fin between the described fin of described bending section more than the spacing of fin being configured between the described fin of line part.
11. the manufacture method of air conditioner according to claim 3, it is characterised in that
At the position not becoming bigger described spacing of fin, the bending of described fins set assembled portion is formed bending section,
It is configured at spacing of fin between the described fin of line part more than the spacing of fin being configured between the described fin of described bending section.
12. the manufacture method of air conditioner according to claim 3, it is characterised in that
Described housing forms described suction inlet at least one side surface part, forms outlet in upper surface part,
Described fan is propeller type fan, and is oppositely arranged with described outlet,
Described heat exchanger and this suction inlet are oppositely arranged, and are divided into multiple heat exchanger portion along the vertical direction,
In at least one in these divided multiple described heat exchanger portions, the spacing of fin in the described heat exchanger portion below being configured at is more than the spacing of fin in the described heat exchanger portion being disposed above.
CN201610232790.5A 2012-08-08 2012-08-08 Method for manufacturing heat exchanger and method for manufacturing air conditioner Pending CN105783139A (en)

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Application Number Priority Date Filing Date Title
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63233296A (en) * 1987-03-20 1988-09-28 Matsushita Electric Ind Co Ltd Finned heat exchanger
CN1149117A (en) * 1995-04-03 1997-05-07 株式会社东芝 Outdoor unit of air conditioner
JP2006153332A (en) * 2004-11-26 2006-06-15 Matsushita Electric Ind Co Ltd Outdoor unit for air conditioner
JP2006336935A (en) * 2005-06-01 2006-12-14 Mitsubishi Electric Corp Outdoor unit for refrigeration air conditioner
CN101087978A (en) * 2004-12-24 2007-12-12 东芝开利株式会社 Outdoor unit for air conditioner
JP2008261611A (en) * 2007-04-16 2008-10-30 Mitsubishi Electric Corp Outdoor unit for air conditioner, and bending device and method for fin and tube type heat exchanger
CN101769689A (en) * 2009-01-05 2010-07-07 三菱电机株式会社 Heat exchanger, method of manufacturing a heat exchanger and air conditioner with the heat exchanger
CN101846479A (en) * 2009-03-25 2010-09-29 三花丹佛斯（杭州）微通道换热器有限公司 Fins for heat exchanger and heat exchanger using same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63233296A (en) * 1987-03-20 1988-09-28 Matsushita Electric Ind Co Ltd Finned heat exchanger
CN1149117A (en) * 1995-04-03 1997-05-07 株式会社东芝 Outdoor unit of air conditioner
JP2006153332A (en) * 2004-11-26 2006-06-15 Matsushita Electric Ind Co Ltd Outdoor unit for air conditioner
CN101087978A (en) * 2004-12-24 2007-12-12 东芝开利株式会社 Outdoor unit for air conditioner
JP2006336935A (en) * 2005-06-01 2006-12-14 Mitsubishi Electric Corp Outdoor unit for refrigeration air conditioner
JP2008261611A (en) * 2007-04-16 2008-10-30 Mitsubishi Electric Corp Outdoor unit for air conditioner, and bending device and method for fin and tube type heat exchanger
CN101769689A (en) * 2009-01-05 2010-07-07 三菱电机株式会社 Heat exchanger, method of manufacturing a heat exchanger and air conditioner with the heat exchanger
CN101846479A (en) * 2009-03-25 2010-09-29 三花丹佛斯（杭州）微通道换热器有限公司 Fins for heat exchanger and heat exchanger using same

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Application publication date: 20160720