CN108779965A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN108779965A CN108779965A CN201780010193.0A CN201780010193A CN108779965A CN 108779965 A CN108779965 A CN 108779965A CN 201780010193 A CN201780010193 A CN 201780010193A CN 108779965 A CN108779965 A CN 108779965A
- Authority
- CN
- China
- Prior art keywords
- fin
- notch section
- flat tube
- chimb
- heat exchanger
- 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.)
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Classifications
-
- 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
- F28F1/325—Fins with openings
-
- 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
- F28D1/0535—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 the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- 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
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
Abstract
The fin chimb (22) that fin (2) has the notch section (21a) of the U-shaped chimeric with flat tube (1) and obliquely erected from the edge of notch section (21a), the open end width W2 of notch section (21a) are formed as bigger than the shape width W1 of flat tube (1).In addition, there is fin chimb (22) fin chimb to tilt facial (22a) and fin chimb end face portion (22b), fin chimb tilts facial (22a) and is obliquely erected relative to fin plane from the edge of notch section (21a), the end that fin chimb end face portion (22b) tilts facial (22a) from the fin chimb is bent, and face contact is carried out with the lateral surface of flat tube (1), fin chimb end face portion (22b) and the lateral surface of flat tube (1) carry out face contact.
Description
Technical field
The present invention relates to a kind of heat exchangers for the fin tube type for having used flat tube.
Background technology
The heat exchanger of the previous fin tube type for having used flat tube, is manufactured using manufacturing device as follows, should
Manufacturing device is rolled by the way that fin, come restriction site, will be held in the installation being rotated between flat tube embedded constraint pin
Cylinder on one side rotates installation roller, and fin is installed on flat tube successively on one side (referring for example to patent document 1).
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2013-59847 bulletins
Invention content
The subject that the invention solves
In the heat exchanger disclosed in patent document 1, flat tube is wanted to push the power of the silent end part of the notch section of U-shaped open
It plays a role, the notch section is for keeping fin chimeric with flat tube.Therefore, when the constraint for dismantling the position for limiting flat tube
When pin, fin deformation exists along the arragement direction (Japanese for being configured with multiple flat tubes：The problem of warpage Duan Fangxiang) occurs.
Also, have when the warpage of the arragement direction of flat tube increases in the fabrication stage that fin is installed on to flat tube
Fin can be inserted into flat tube by Shi Buzai.When make in the state of can not fin be inserted into flat tube the manufacturing device of heat exchanger into
It has gone in the case of operating, the bad phenomenons such as fin mounting plate and flat tube collision occurs, manufacturing device may occur to stop event
Barrier.
The present invention makes to solve project as described above, it is therefore intended that using keeps fin embedding with flat tube
The notch section shape that the power of the closed end of the notch section of fin can be inhibited to want to push open when conjunction, mitigates the arragement direction of flat tube
Warpage, prevent the damage of flat tube and fin mounting plate.
Solution for solving the problem
The heat exchanger of the present invention is characterised by comprising：Multiple flat tubes, above-mentioned multiple flat tubes become heat-conducting medium
Flow path, section are flat pattern；And multiple fins, above-mentioned multiple fins are fixed on above-mentioned flat tube, principal plane with it is above-mentioned flat
The path direction of flat pipe is orthogonal, is configured at spaced intervals along path direction, and above-mentioned fin has chimeric with above-mentioned flat tube lack
Oral area and the fin chimb erected from the edge of above-mentioned notch section, the shape of the open end of above-mentioned notch section than above-mentioned flat tube
Width is big, and there is above-mentioned fin chimb fin chimb to tilt face and fin chimb end face portion, and above-mentioned fin chimb tilts face
It is obliquely erected relative to fin plane from the edge of above-mentioned notch section, above-mentioned fin chimb end face portion is inclined from above-mentioned fin chimb
The end of inclined plane part is bent, and is carried out face with the lateral surface of above-mentioned flat tube and contacted.
Invention effect
Heat exchanger using the present invention, since the open end of notch section is bigger than the shape width of flat tube, so can press down
The deformation for making fin after keeping fin chimeric with flat tube, due to fin chimb fin chimb end face portion and flat tube outside
Side carries out face contact, so fin and flat tube can be fixed, and can ensure heat conductivity between the two.
Description of the drawings
Fig. 1 is the stereogram of the heat exchanger of the present invention.
Fig. 2 is the stereogram of the notch section shape of the fin for the heat exchanger for indicating embodiments of the present invention 1.
Fig. 3 is the schematic structural diagram of the manufacturing device of the heat exchanger of the present invention.
Fig. 4 is the stereogram for indicating the flat tube constriction in the manufacture of the heat exchanger of the present invention.
Fig. 5 is the sectional view for indicating to assemble fin to the flat tube of the heat exchanger of embodiments of the present invention 1.
Fig. 6 is the sectional view of the notch section shape of the fin for the heat exchanger for indicating embodiments of the present invention 1.
Fig. 7 be the notch section shape of the fin for the heat exchanger for indicating embodiments of the present invention 2 stereogram and indicate to
Flat tube assembles the sectional view of fin.
Fig. 8 is the sectional view for indicating to assemble fin to the flat tube of the heat exchanger of embodiments of the present invention 3.
Fig. 9 is the reference stereogram for the notch section shape for indicating the fin needed for the explanation of the present invention.
Figure 10 is the reference stereogram for the warpage for indicating the fin needed for the explanation of the present invention.
Figure 11 is the stereogram of the notch section shape of the fin for the heat exchanger for indicating embodiments of the present invention 4.
Specific implementation mode
Embodiment 1.
Illustrate the heat exchanger of embodiments of the present invention 1 using Fig. 1~Fig. 6.
Fig. 1 is to indicate with applying the manufacturing method of the present invention and what manufacturing device manufactured has used section to be formed as flat
The stereogram of the heat exchanger 100 of flat-shaped flat tube 1.In Fig. 1, heat exchanger 100 is the fin tube type knot for having used flat tube 1
Structure is made of flat tube 1 and fin 2, and flat tube 1 is chimeric with set on the notch section 21a of fin 2, is in each other in the fitting portion
The state of engagement.
Fin 2 be tabular, along flat tube 1 length direction i.e. heat-conducting medium path direction at certain intervals
Parallelly there are many pieces for installation.The section vertical with path direction of flat tube 1 is flat pattern, a plurality of adjacent side by side flat
The periphery plane (lateral surface) of flat pipe 1 configures facing with each otherly, and water, refrigerant etc. become the fluid of heat-conducting medium each flat
The internal flow of pipe 1.
Fig. 2 is the stereogram for indicating to constitute the shape of the notch section 21a of the fin 2 of the heat exchanger 100 of the present invention.In fin
2 end edge alongst is equipped with multiple notch section 21a at a prescribed interval, as shown in Fig. 2, 1 notch section 21a is formed
For the slit of the wide width (the width W2 of open end) of width (shape width W1) than flat tube 1.
The opening shape of notch section 21a is U-shaped, in the state of after fin 2 is chimeric with flat tube 1, flat tube 1
One semi-circular ends is embedded in the semicircular part (fillet part) as closed end of notch section 21a.
In addition, in the planar portions 2a marked off using notch section 21a, it is formed with slit (not shown).
Also, it is formed with fin chimb 22 in the same surface side of fin 2, the fin chimb 22 is along each notch section 21a
Edge erect, for making flat tube 1 be engaged in intimate contact with fin 2.
In addition, fin chimb 22 and slit (not shown) are protrudedly formed relative to the surface of fin 2 to same direction.
In this way, the fin 2 of embodiments of the present invention 1 has the notch section 21a chimeric with flat tube 1, and lacked from this
The fin chimb 22 that the lateral surface of the edge of oral area 21a towards flat tube 1 erects, the width W2 of the open end of notch section 21a with
The semicircular part of closed end of the mode bigger than the shape width W1 of flat tube 1 from notch section 21a biases (day in a manner of widened
Text：オフセット).Fin chimb 22 has fin chimb inclination face 22a and fin chimb end face portion 22b, above-mentioned fin convex
Side tilts face 22a and is obliquely erected relative to fin plane from the edge of notch section 21a, above-mentioned fin chimb end face portion 22b
The end that face 22a is tilted from the fin chimb is bent, and carrying out face with the lateral surface of flat tube 1 contacts.
Therefore, the edge of the fin chimb 22 of fin 2 will not become in the state of chimeric with flat tube 1 with
The state of the lateral surface contact of flat tube 1.
By the engagement of the fin chimb end face portion 22b of the lateral surface and fin 2 of flat tube 1, flat tube 1 and fin are carried out
2 fixation, by making the two face contact, it can be ensured that heat conductivity.
Here, the fin chimb of fin 2 tilts face 22a since closed end is arrived in the open end of the notch section 21a of U-shaped
Two parallel linear edges extend, and are formed as the planar portions 2a relative to fin 2 with the angle less than 90 degree towards flat
The state that the lateral surface of flat pipe 1 erects.At this point, as shown in Fig. 2, the extended face of the planar portions 2a of fin 2 is inclined with fin chimb
Angle formed by the lower surface of inclined plane part 22a is less than 90 degree.Change an angle, upper surface and the fin chimb of the planar portions 2a of fin 2
Angle formed by the upper surface of face 22a is tilted as the angle (obtuse angle) more than 90 degree.
In addition, as described above, the fluids such as water, refrigerant flat tube 1 internal flow, by by the section of flat tube 1
It is set as flat pattern, compared with circular pipe, increases while ventilation resistance can not be increased the amount of the fluids such as water, refrigerant.As a result,
The performance as heat exchanger 100 can be improved.It is and previous that is, in the case where being compared as same performance
It has used the heat exchanger of round tube to compare, the heat exchanger 100 of flat tube 1 has been used to have the advantages that minimize.
As shown in Figure 1, fin 2 crosses the multiple flat tubes 1 being arranged side-by-side, and the flow path side of principal plane and flat tube 1
To orthogonal, configured at spaced intervals along path direction, by the way that flat tube 1 to be respectively arranged in each notch section 21a, by fin
2 are installed on the peripheral surface and lateral surface of multiple flat tubes 1.In addition, by the flat tube 1 vertical with the path direction of flat tube 1
The direction of arrangement is set as the arragement direction of flat tube 1.
As shown in Figure 1, being arranged side-by-side the arragement directions of multiple flat tubes 1 and the configuration notch section 21a's of multiple fins 2
Direction is identical, and on above-mentioned direction, needless to say the spacing for configuring flat tube 1 and notch section 21a is identical.
Also, as shown in Figure 1, the multi-disc fin 2 for being formed as the same shape separate as defined in compartment of terrain be installed on it is multiple flat
The peripheral surface of flat pipe 1, in the state that heat exchanger 100 is operated, the fluid flowed in each flat tube 1 is via flat
Pipe 1 and multi-disc fin 2 absorb heat from air, to which by big air cooling, on the contrary by radiating to air, air be heated.
Fig. 3 is the concept map for the manufacturing device for indicating the heat exchanger 100 using the present invention.It is filled in the manufacture for having used Fig. 3
In the manufacturing method for setting manufacture heat exchanger 100, the peripheral surface of the flat tube 1 of the fluid circulation as heat-conducting medium is supplied in inside,
Path direction (length direction) along flat tube 1 installs multi-disc fin 2 at a prescribed interval, has locomotive function, fin installation
Function and flat tube constraint function, above-mentioned locomotive function make flat tube 1 and to be installed on the fin 2 of flat tube 1 along flat tube 1
Length direction relatively moves, and fin 2 is installed on flat tube 1 by above-mentioned fin installation function one by one, and above-mentioned flat tube is about
Beam function is used in the position for being executed the width direction of constraint flat tube 1 when fin is installed using fin installation function.
In the manufacture of the heat exchanger 100, before assembling fin 2, it is arranged side-by-side multiple foundations at a prescribed interval and is wanted
The cooling and warming performance asked and the flat tube 1 of quantity set.Also, it is arranged side-by-side to multiple using flat tube constraint function
Whole flat tubes 1 constrained, restrained flat tube 1 is installed at a prescribed interval using fin installation function needed for number
The fin 2 of amount, to persistently manufacture finned tube.
Fin installation function is described in detail using Fig. 3.Constitute manufacturing device roller 122 around axle center X in the direction of arrow A
That is it is rotated clockwise with fixing speed in Fig. 3.As rotary driving source, it is best to properly select servo motor etc.
Component.The peripheral part of the roller 122 be equipped with along roller 122 circumferential direction be arranged at a prescribed interval it is multiple (be 8 in figure 3
It is a) fin mounting plate 121.Each fin mounting plate 121 carries out circumference fortune with the rotation of roller 122 and centered on the X of axle center
It is dynamic.It is that action-stopping is repeated in 45 degree of spacing that roller 122, which often rotates 1/8 circle,.At this point, rotary speed properly selects most preferably
Value.The fin mounting plate 121 that the topmost at the top for example as roller 122 is reached with the rotation of roller 122, connects
By 1 fin 2 from other mechanism supply (not shown) and keep the fin 2.Holding of the fin mounting plate 121 to fin 2,
For example, by using be the vacuum suction that fin 2 is adsorbed using the sucking of air.
By making 122 half rotation of roller, the fin mounting plate 121 of fin 2 remain around axle center X in the direction of arrow A
Rotation is stopped in the lower part (underface) of roller 122 with the posture vertical with flat tube 1.
Then, the fin that remain in a manner of vacuum suction 2 is made to be separated with fin mounting plate 121 vacuum breaking,
So as to which fin 2 to be installed on to the peripheral surface of flat tube 1.
Next, roller 122 further rotates, to which the fin mounting plate 121 after being separated with fin 2 rotates, but at this
In, fin mounting plate 121 needs to be acted in a manner of with the fin 2 for being installed on flat tube 1 not interfering.In order to be somebody's turn to do
Action, cam follower 124 is equipped in fin mounting plate 121.In addition, the rotating center section in roller 122 sets up separately and is equipped with not
The cam of diagram.It can make such as lower structure：With the rotation of roller 122, cam follower 124 is along cam, to control
The posture of fin mounting plate 121, the structure that fin mounting plate 121 is not interfered with fin 2.
Next, the locomotive function of flat tube 1 is described in detail.In order to keep multiple flat tubes 1, using as shown in Figure 4
Flat tube constriction 300.Fig. 4 is having for a part for the manufacturing device for being denoted as the heat exchanger 100 using the present invention
The stereogram of the flat tube constriction 300 of flat tube constraint function.It is substrate as the pedestal of the flat tube constriction 300
302, flat tube 1 by the major diameter direction in its section become it is vertical in a manner of be maintained at plant stand on substrate 302 constraint pin 301 it
Between.Also, in order to make the position installed for fin 2 on flat tube 1 relative to the rotation as roller 122 sayed in figure 3
The fin installation site for turning the underface in direction is moved, and makes flat tube constriction 300 with defined speed along the directions arrow B
Distance as defined in mobile.As the driving source of the flat tube constriction 300, the best component such as servo motor is properly selected.
Also, the displacement distance in the directions B becomes according to product specifications, so properly selecting best value, energy together with movement speed
Above-mentioned value is easily varied on the operation panel of operating device.In addition, needless to say, flat tube 1 can also be fixed in advance, made
Roller 122 is moved along the direction opposite with arrow B.
In Fig. 4, flat tube constriction 300 is made of substrate 302 and multiple constraint pins 301, and aforesaid substrate 302, which is equipped with, to be used
In the hole (not shown) for equally spacedly fixing these constraint pins 301.A part for multiple constraint pins 301 is mounted and fixed in base
One side on the surface of plate 302 and the other side are set to the hole of a row.In a side on the surface of substrate 302 and the other side
It is respectively two constraint pins 301, horizontal direction position of the limitation flat tube 1 on the surface of substrate 302 that portion, which is distinguished adjacent,.
Multiple flat tubes 1 are equally spacedly aligned along the width direction of flat tube 1 as a result,.Carrying out fin as described above
During installation action, flat tube constraint function constrains (contact) flat tube 1 always, and makes flat tube 1 using locomotive function
It is mobile.That is, constraint pin 301 and flat tube 1 are in contiguous state.Therefore, constraint pin 301 selects wear resistance excellent
Different material.
The interval of the constraint pin 301 positioned at the both sides of 1 flat tube 1 of flat tube constriction 300 shown in Fig. 4 is set
It is slightly wider for the width than flat tube 1, to be easy to carry out handling and shifting of the flat tube constriction 300 relative to multiple flat tubes 1
It is dynamic.
Here, in the example in fig. 4, indicate to configure constraint pin 301 to two row, be located at the both sides of multiple flat tubes 1
Pin be set as become same row the case where, but can also will constraint pin 301 be arranged as 3 row or more, so as to along the stream of flat tube 1
More than at road direction locking 3.In addition, the constraint pin positioned at the both sides of multiple flat tubes 1 can also be not formed as same row, but
Such as by as the arrangement that is serrated in a manner of staggered.It selects to use such as bearing alternatively, it is also possible to replace constraint pin 301
Such component, the component are rotated up in the side that flat tube 1 is acted by locomotive function.
After being mounted with fin 2 relative to flat tube 1 using the manufacturing device of Fig. 3, flat tube 1 is moved using locomotive function
Next fin 2 is installed on flat tube 1 by defined distance using fin insertions function again.By continuously being provided
This series of cycle (cycle that fin 2 is installed on flat tube 1 and flat tube 1 is made to move) of number, can manufacture flat
For example to be equipped with the heat exchanger 100 of multiple fins 2 at equal intervals on flat pipe 1.
Next, indicating the heat exchanger before installing fin 2 relative to flat tube 1 and after being mounted with fin 2 in Figure 5
100 sectional view.Fig. 5 is the figure for indicating to assemble fin 2 to the flat tube 1 of heat exchanger 100.As shown in the upper figure of Fig. 5, pacifying
Before filling fin, fin 2 is not the construction that the edge of notch section 21a can be pushed by the lateral surface of flat tube 1.Therefore, by wing
In the case that piece 2 is installed on flat tube 1, as shown in the lower panel of figure 5, it is not easy to produce the notch section 21a's for wanting to push open fin 2
The power of closed end.Therefore, heat exchanger 100 does not occur flat caused by the warpage of the length direction of fin 2, the influence by the warpage
The inclination of pipe 1.
Thus, in the manufacturing process of heat exchanger 100, in the stage for installing fin 2 successively relative to flat tube 1, even if
Heat exchanger 100 in making flat tube constriction 300 keep out of the way and manufacturing certainly unloads, and fin mounting plate 121 is not also done with flat tube 1
It relates to, terminal part is installed so fin 2 can be installed to the fin of flat tube 1, completes heat exchanger 100.
Next, illustrating the variation of the notch section 21a of fin 2 using Fig. 6.(a), (b) of Fig. 6 be fin 2 along
The sectional view of the path direction of flat tube 1 and width direction along the open end of notch section 21a.
As described above, there is fin chimb 22 fin chimb to tilt face 22a, fin chimb tilts face 22a such as Fig. 6's
(a) shown in, there is the fin chimb being made of plane to tilt face 22aa as shown in (b) of Fig. 6, can also make in addition to this
Face 22ab is tilted by the fin chimb that curved surface is constituted.The fin chimb of the curve form of (b) of Fig. 6 tilts the prominent of face 22ab
Outgoing direction is the sides notch section 21a, but needless to say can make to opposite side curve form outstanding etc. and change fin chimb
The shape for tilting face 22ab is used.
As shown in (a) of Fig. 6, (b), fin chimb tilts face 22aa, 22ab from the edge of notch section 21a relative to wing
The extended face of the planar portions 2a of piece 2 is bendingly formed with the angle less than 90 degree, and face 22aa, 22ab are tilted in fin chimb
The lateral surface of end and flat tube 1 carry out face and contact.Also, the end of face 22aa, 22ab is tilted into one in fin chimb
Step bends and forms fin chimb end face portion 22b, and the plane of fin chimb end face portion 22b becomes the lateral surface face with flat tube 1
Contiguous state.Therefore, it is possible to obtain the state that fin chimb end face portion 22b is engaged with enough areas with flat tube 1, by
This can improve the heat exchange performance of heat exchanger 100.
Here, in order to be compared with embodiments of the present invention 1, the fin 200 as comparative example is indicated in fig.9
Stereogram.As shown in figure 9, being equipped with the open end narrow notch smaller than the shape width of flat tube 1 in the fin 200 as comparative example
Portion 210.The width W3 of the open end of the narrow notch section 210 is formed as more slightly smaller than the width W1 of flat tube 1 by the fin 200,
Fin chimb is vertically further formed in a manner of standing from the edge of narrow notch section 210 and planar portions 200a on the basis of this
220, so the dislocation after fin 2 is assembled in flat tube 1 can be inhibited.
Next, indicating the sectional view in the case that the fin 200 of Fig. 9 is installed on flat tube 1 in Fig. 10.Such as Figure 10
Upper figure shown in, relative to flat tube 1 install fin 200 before stage, can't see the deformations such as warpage.
As shown in the middle figure of Figure 10, when keeping fin 200 chimeric with flat tube 1, the edge pushing of narrow notch section 210 is flat
The lateral surface of pipe 1, and the power for wanting to push open the closed end of narrow notch section 210 plays a role, but due to be in make it is (not shown)
Flat tube constriction 300 remains the state of flat tube 1, so the restrained pin 301 of the power limits, at this stage, in fin 200
It can't see deformation.
But as shown in figure below of Figure 10, in the stage for having unloaded flat tube 1 from flat tube constriction 300, narrow notch section
The width expansion of 210 open end, the length direction along fin 200 generate warpage.Due to closer to the outside of heat exchanger 100,
The structure of counteracting force is more not present, so the power for wanting to push open narrow notch section 210 acts on strongly, is located at the flat of outside
Pipe 1, more tilts, and the state that is arranged side-by-side of flat tube 1 changes.
In Fig. 9 and comparative example shown in Fig. 10, after being mounted with fin, due to the shape of narrow notch section 210, make embedding
Produce unnecessary stress between the flat tube 1 and fin 200 of conjunction, but in changing according to the embodiment 1 of the present application
In hot device 100, by the way that the opening width W2 of the shape of notch section 21a is set as bigger than the width W1 of flat tube 1, it can inhibit
The generation of unnecessary stress and improve manufacturing.In addition, in the heat exchanger 100 according to the embodiment 1 of the present application,
The plane and the lateral surface of flat tube 1 of fin chimb end face portion 22b is provided parallel to, these faces carry out face contact each other, so
The two can be fixed and ensure heat conductivity.
Embodiment 2.
Fig. 7 is the concept map for indicating heat exchanger 100 according to embodiment 2 of the present invention, and (a) of Fig. 7 is to indicate fin 2
Notch section 21b shape stereogram, (b) of Fig. 7 be indicate to flat tube 1 assemble fin 2 state sectional view.
In above-mentioned embodiment 1, width W1s of the width W2 than closed end of the open end of notch section 21a is instantiated
Greatly, the parallel situation in two linear edges of the notch section 21a and as U-shaped, but 2 wing according to the present embodiment
Shown in (a) of notch section 21b such as Fig. 7 of piece 2, the width W2 of the open end of notch section 21b is than the semicircular diameter with U-shaped
The width W1 of equal closed end is big, and two linear edges of notch section 21b be located at connection open end with it is silent
On the nonparallel line at end.The opening width of notch section 21b is in following state：Closer to open end, the opening of notch section 21b
Width is formed as bigger；Closer to closed end, the opening width of notch section 21b is formed as smaller.
In addition, as shown in (a) of Fig. 7, due to being formed as bigger closer to the opening shape of open end then notch section 21b,
So closer to closed end, the edge of notch section 21b is also bigger at a distance from the lateral surface of flat tube 1.Therefore, fin chimb 23
Shape also change therewith, be formed as closer to the open end of notch section 21b, fin chimb tilts the standing amplitude of face 23a
Bigger, closer to the closed end of notch section 21b, the standing amplitude that fin chimb tilts face 23a is smaller.
The end bending of face 23a is tilted from fin chimb and forms fin chimb end face portion 23b, is and above-mentioned implementation
The fin chimb end face portion 22b of mode 1 is same.
But the size that the standing amplitude of face 23a is tilted about fin chimb is illustrated and is more leaned in (a) of Fig. 7
The open end of nearly notch section 21b, above-mentioned standing amplitude is bigger, closer to closed end, the example as above-mentioned standing amplitude is smaller
Son by the standing size (amplitude) of fin chimb end face portion 23b and can lack in the stage for manufacturing fin 2 by punch forming
The depth of oral area 21b is independently adjusted to identical size.In addition, the variation as fin chimb end face portion 23b, it certainly need not
Saying also can be by the size (width) of the close closed end of increase notch section 21b, to obtain bonding area.
As described above, the shape of the notch section 21b of fin 2 is not necessarily such constant width shown in (a) of Fig. 2
(W2), can also be formed as such width W1 relative to flat tube 1 shown in (a) of Fig. 7 makes the width W2 of open end increase
Shape can inhibit the closed end for wanting to push notch section 21b open after being mounted with fin 2 by being formed as such shape
The generation of the power of side obtains same effect as that of the first embodiment.Fin 2 is being installed relative to flat tube 1 in addition, can mitigate
When the load that applies.
Also, in the position of the closed end close to notch section 21b, acquisition keeps flat tube 1 seamlessly chimeric with fin 2
State, so as to ensure the contact of flat tube 1 and fin chimb 23 after being mounted with fin 2 relative to flat tube 1.
Embodiment 3.
Fig. 8 is the concept map for indicating heat exchanger 100 according to embodiment 3 of the present invention, is indicated in 12 groups of fin
Close the sectional view of state in the case of having used the notch sections of multiple shapes, that fin 2 is assembled to flat tube 1.
In above-mentioned embodiment 1 or embodiment 2, the multiple notch section 21a or notch for being formed in fin 2 are illustrated
Portion 21b is the example of all identical shapes.But the multiple notch sections for being formed in 1 fin 2 may not be all it is identical
Shape, the notch section of different shapes can be applied in combination.
Such as shown in figure 8, following this fin 2 can be used, the fin 2 is using two kinds of different notches of opening width
Portion, alternately configuration are formed with shown in the narrow notch section 210 and embodiment 2 indicated as the comparative example of embodiment 1
Notch section 21b.Needless to say by being alternately configured with narrow notch section 210 and notch section 21b, the strong point of the two can be introduced.
The present invention is not limited thereto, and the notch section set on fin 2 can also be set as 3 kinds or more, be adopted as long as properly selecting
With best structure.In addition, the configuration about the notch section on 1 fin 2, also need not must be that alternately configuration is formed
Different types of notch section, for example, needless to say also can change notch section shape every 2 ground, and according to installation position point
It opens using notch section shape etc..
Notch section 21a, 21b of fin 2, which are not generated, shown in embodiment 1 and embodiment 2 wants to push open fin 2
The power of silent end side, on the contrary, flat tube 1 and the contact force of fin 2 have the tendency reduced.Therefore, in order to make up flat tube 1 with
The contact force of fin 2 a, as shown in figure 8, part for multiple notch sections is replaced into the width W1 than flat tube 1 on fin 2
The narrow notch section 210 of slightly narrow width W3 inhibits flat tube 1 and fin 2 so as to increase the contact force with flat tube 1
Dislocation.
In addition, as shown in Figure 1, in heat exchanger 100, it is installed on piece there are many fins 2 of flat tube 1.In above-mentioned reality
It applies in mode 1,2, it is contemplated that the fin 2 of the same shape of the piece number needed for preparing, and these fins 2 are assembled successively to flat tube 1, but
The variform a variety of fins of notch section 2 can be also applied in combination by being installed on the fin 2 of 1 heat exchanger 100.For example, about only setting
There is notch section shown in the fin 2 of notch section 21a shown in Fig. 2 of embodiment 1, (a) for the Fig. 7 for being provided only with embodiment 2
The fin 2 of 21b and be arranged alternately with two kinds of shapes that side view is illustrated in above-mentioned Fig. 8 narrow notch section 210 and lack
Required amount of above-mentioned fin 2 also can be assembled in flat tube 1 in order and form heat exchanger 100 by the fin 2 of oral area 21b.It closes
In the type of fin 2, to the assembling sequence of flat tube 1, the sequence of fin 2 can be supplied to manufacturing device by changing, is come each
Change to kind various kinds.
Embodiment 4.
(a), (b), (c) of Figure 11 are the stereogram of fin 2 according to embodiment 4 of the present invention respectively, are to indicate scarce
The figure of the shape of oral area 21c, 21d, 21e.
In above-mentioned embodiment 1 and embodiment 2, illustrate fin chimb 22,23 with respect to notch section
The center line of the silent endvertex of 21a or notch section 21b and line is symmetrically arranged, and left and right fin chimb shape it is identical
Example.In present embodiment 4, illustrate that the fin chimb erected from the edge of the left and right of notch section 21c, 21d, 21e is difference
The case where different shape.
As shown in (a) of Figure 11, it is formed with fin chimb 22 in the edge in the left side of the notch section 21c of fin 2, on right side
Edge be formed with fin chimb 23.
The open end of the notch section 21c of fin 2 shown in (a) of the Figure 11 is greatly than closed end (semicircular part), and flat
The edge of that side of fin chimb 22 formed in two linear edges of the chimeric notch section 21c of the principal plane of pipe 1,
On the line parallel with the principal plane of flat tube 1, it is formed with the edge of that side of another fin chimb 23, is located at connection notch
On the open end of portion 21c and the line of closed end.The dotted line that the point contacted from the closed end of notch section 21c with fin chimb 23 extends
Indicate the line parallel with the edge of fin chimb 22.Semicircles of the opening width W4 of silent end side from the closed end of notch section 21c
The end shape portion (width W1) is biased along widened direction, is formed as the amount for going out biasing greatly than the shape width W1 of flat tube 1.And
And in opening width, it is convex that the open end width W2 of notch section 21c further goes out greatly fin than the opening width W4 of silent end side
The widened amount on side 23.
In the construction of fin 2 shown in (a) of the Figure 11, has fin due to being configured in the left and right of notch section 21c
Chimb tilt face 22a and fin chimb end face portion 22b fin chimb 22, and have fin chimb inclination face 23a with
And the fin chimb 23 of fin chimb end face portion 23b, so can inhibit when being assembled to flat tube 1 in the left and right of notch section 21c
Fin 2 deformation, and can steadily fix fin 2 and flat tube 1.
In addition, as shown in (b) of Figure 11, in two linear edges of the notch section of the fin 2 chimeric with flat tube 1
In left side edge, be formed with the fin chimb 22 of embodiment 1, it is convex to be formed with the fin that constructed in the past in the edge on right side
Side 220.
The open end for having the notch section 21d of the fin 2 of fin chimb 22 is bigger than closed end, from the two of notch section 21d
The fin chimb 22,220 that the linear edge of item erects respectively is different shape, is formed with the edge of that side of fin chimb 22
Portion positioned at connection open end and makes on the line for the position that notch section 21d biases from the semicircular part of closed end to widened direction,
The edge for being formed with that side of fin chimb 220 is located on the line of connection open end and closed end, and the two becomes parallel configuration.
In notch section 21d, open end width and the opening width W4 of silent end side are identical size, than closed end (semicircular part)
Width W1 is big.
In addition, as shown in (c) of Figure 11, it can also make and be formed with implementation in the edge in the left side of the notch section 21e of fin 2
The fin chimb 23 of mode 2 is formed with the construction of fin chimb 220 in the edge on right side.The open end width W4 of notch section 21e
Than the widened amount that the width W1 of closed end goes out greatly fin chimb 23.
In addition, needless to say, though (a) of Figure 11, (b), fin 2 shown in (c) notch section 21c, 21d, 21e by wing
Piece chimb left-right reversed, also there is no problem.
In this way, the shape of notch section 21c, 21d, 21e of fin 2 shown in (a), (b), (c) by using Figure 11, energy
After being mounted with fin 2, inhibit to want to push notch section 21c, 21d, 21e open in the same manner as embodiment 1 and embodiment 2
The generation of the power of silent end side, and can steadily fin 2 be fixed to flat tube 1.
In addition, needless to say, can be formed to fin 2 in the same manner as embodiment 3 and be lacked shown in Figure 11 in any order
Oral area 21c, 21d, 21e.
In addition, the present invention can freely combine each embodiment within the scope of the invention, or it is appropriately deformed, omits
Each embodiment.
Claims (10)
1. a kind of heat exchanger, which is characterized in that
The heat exchanger includes：Multiple flat tubes, the multiple flat tube become the flow path of heat-conducting medium, and section is pancake
Shape；And multiple fins, the multiple fin are fixed on the flat tube, the path direction of principal plane and the flat tube is just
It hands over, is configured at spaced intervals along path direction,
The fin chimb that the fin has the notch section chimeric with the flat tube and erected from the edge of the notch section,
The open end of the notch section is bigger than the shape width of the flat tube,
There is the fin chimb fin chimb to tilt face and fin chimb end face portion, and the fin chimb tilts face from institute
The edge for stating notch section is obliquely erected relative to fin plane, and the fin chimb end face portion is from fin chimb inclined surface
The end in portion is bent, and is carried out face with the lateral surface of the flat tube and contacted.
2. heat exchanger according to claim 1, which is characterized in that
The opening shape of the notch section is U-shaped, a semi-circular ends of the flat tube and becoming for the notch section
The semicircular part of closed end is chimeric,
The fin chimb tilts two linear edges extensions of the face since the open end of the notch section to closed end,
Relative to fin plane with the angle less than 90 degree towards the flat tube lateral surface erect.
3. heat exchanger according to claim 2, which is characterized in that
The open end of the notch section is bigger than closed end, and two linear edges of the notch section are parallel.
4. heat exchanger according to claim 2, which is characterized in that
The open end of the notch section is bigger than closed end, and two linear edges of the notch section are located at described in connection
On the line of open end and the closed end.
5. heat exchanger according to any one of claim 1 to 4, which is characterized in that
It is plane that the fin chimb, which tilts face and the fin chimb end face portion,.
6. heat exchanger according to any one of claim 1 to 4, which is characterized in that
It is curved surface that the fin chimb, which tilts face, and the fin chimb end face portion is plane.
7. heat exchanger according to any one of claim 1 to 6, which is characterized in that
The fin other than with the notch section, also with open end it is smaller than the shape width of the flat tube it is narrow lack
Oral area.
8. heat exchanger according to claim 7, which is characterized in that
The notch section and the narrow notch section are alternately configured in the end of the fin.
9. heat exchanger according to claim 2, which is characterized in that
The open end of the notch section is bigger than closed end, the fin erected respectively from two linear edges of the notch section
Chimb is different shape, and one of described edge is located on the line parallel with the principal plane of the flat tube, the edge
Another one is located on the line for linking the open end and the closed end.
10. heat exchanger according to claim 2, which is characterized in that
The open end of the notch section is bigger than closed end, the fin erected respectively from two linear edges of the notch section
Chimb is different shape, one of described edge be located at link the open end with the notch section from the closed end to
On the line of the position of widened direction biasing, the another one of the edge is located at the line for linking the open end and the closed end
On.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016032615 | 2016-02-24 | ||
| JP2016-032615 | 2016-02-24 | ||
| PCT/JP2017/003941 WO2017145701A1 (en) | 2016-02-24 | 2017-02-03 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108779965A true CN108779965A (en) | 2018-11-09 |
Family
ID=59685277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780010193.0A Pending CN108779965A (en) | 2016-02-24 | 2017-02-03 | Heat exchanger |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180320989A1 (en) |
| EP (1) | EP3421919A4 (en) |
| JP (1) | JP6479252B2 (en) |
| CN (1) | CN108779965A (en) |
| WO (1) | WO2017145701A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344763A (en) * | 2019-08-07 | 2021-02-09 | 丹佛斯有限公司 | Method for manufacturing heat exchanger |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6233540B2 (en) * | 2016-04-20 | 2017-11-22 | ダイキン工業株式会社 | Heat exchanger and air conditioner |
| JP7001943B1 (en) | 2020-09-08 | 2022-01-20 | ダイキン工業株式会社 | Heat exchanger and air conditioner |
| JP7001944B1 (en) | 2020-09-08 | 2022-01-20 | ダイキン工業株式会社 | Heat exchanger and air conditioner |
| WO2022054406A1 (en) * | 2020-09-08 | 2022-03-17 | ダイキン工業株式会社 | Heat exchanger and air conditioning apparatus |
| JP6958695B1 (en) * | 2020-09-08 | 2021-11-02 | ダイキン工業株式会社 | Heat exchanger and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169177A (en) * | 1988-12-16 | 1990-06-29 | Matsushita Refrig Co Ltd | Production of 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 |
| JP2011127867A (en) * | 2009-12-21 | 2011-06-30 | Mitsubishi Electric Corp | Heat exchanger fin, heat exchanger, and method for manufacturing the same |
| JP2011202820A (en) * | 2010-03-24 | 2011-10-13 | Mitsubishi Electric Corp | Fin for heat exchanger and the heat exchanger |
| JP2012154498A (en) * | 2011-01-21 | 2012-08-16 | Daikin Industries Ltd | Heat exchanger, and air conditioner |
| JP5396556B1 (en) * | 2012-06-07 | 2014-01-22 | 三菱樹脂株式会社 | Solar cell module and manufacturing method thereof |
| JP2014238204A (en) * | 2013-06-06 | 2014-12-18 | 三菱電機株式会社 | Process of manufacture of flat tube heat exchanger and flat tube heat exchanger manufactured by the process |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1202813A (en) * | 1915-02-13 | 1916-10-31 | Dominick Dileo | Radiator for liquid-cooling systems. |
| US1396633A (en) * | 1920-04-12 | 1921-11-08 | Henry N Jensen | Radiator for automobiles and the like |
| US1450399A (en) * | 1920-10-11 | 1923-04-03 | Witte Meinhard | Radiator |
| JPS5396556A (en) * | 1977-02-02 | 1978-08-23 | Hitachi Ltd | Cooling fin |
| DE4404837A1 (en) * | 1994-02-16 | 1995-08-17 | Behr Gmbh & Co | Rib for heat exchangers |
| JP4300508B2 (en) * | 2002-12-25 | 2009-07-22 | 株式会社ティラド | Plate fin and heat exchanger core for heat exchanger |
| JP2006214702A (en) * | 2005-02-07 | 2006-08-17 | Denso Corp | Heat exchanger, method of manufacturing heat exchanger, and plate-shaped fin for heat exchanger |
| US20100116467A1 (en) * | 2008-11-12 | 2010-05-13 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
| WO2013160951A1 (en) * | 2012-04-26 | 2013-10-31 | 三菱電機株式会社 | Heat exchanger, method for manufacturing heat exchanger, and air conditioner |
| WO2013160959A1 (en) * | 2012-04-27 | 2013-10-31 | 三菱電機株式会社 | Heat exchanger, method for producing same, and refrigeration cycle device |
| CN104334996B (en) * | 2012-06-29 | 2016-08-24 | 三菱电机株式会社 | The manufacture method of heat exchanger, heat exchanger and air conditioner |
| KR20140142802A (en) * | 2013-06-04 | 2014-12-15 | 삼성전자주식회사 | Outdoor heat exchanger and air conditioner |
| JP6455103B2 (en) * | 2014-11-28 | 2019-01-23 | 株式会社富士通ゼネラル | Heat exchanger |
-
2017
- 2017-02-03 US US15/779,912 patent/US20180320989A1/en not_active Abandoned
- 2017-02-03 JP JP2018501103A patent/JP6479252B2/en active Active
- 2017-02-03 CN CN201780010193.0A patent/CN108779965A/en active Pending
- 2017-02-03 WO PCT/JP2017/003941 patent/WO2017145701A1/en active Application Filing
- 2017-02-03 EP EP17756143.8A patent/EP3421919A4/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02169177A (en) * | 1988-12-16 | 1990-06-29 | Matsushita Refrig Co Ltd | Production of 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 |
| JP2011127867A (en) * | 2009-12-21 | 2011-06-30 | Mitsubishi Electric Corp | Heat exchanger fin, heat exchanger, and method for manufacturing the same |
| JP2011202820A (en) * | 2010-03-24 | 2011-10-13 | Mitsubishi Electric Corp | Fin for heat exchanger and the heat exchanger |
| JP2012154498A (en) * | 2011-01-21 | 2012-08-16 | Daikin Industries Ltd | Heat exchanger, and air conditioner |
| JP5396556B1 (en) * | 2012-06-07 | 2014-01-22 | 三菱樹脂株式会社 | Solar cell module and manufacturing method thereof |
| JP2014238204A (en) * | 2013-06-06 | 2014-12-18 | 三菱電機株式会社 | Process of manufacture of flat tube heat exchanger and flat tube heat exchanger manufactured by the process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344763A (en) * | 2019-08-07 | 2021-02-09 | 丹佛斯有限公司 | Method for manufacturing heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3421919A1 (en) | 2019-01-02 |
| US20180320989A1 (en) | 2018-11-08 |
| EP3421919A4 (en) | 2019-11-06 |
| JPWO2017145701A1 (en) | 2018-07-12 |
| JP6479252B2 (en) | 2019-03-06 |
| WO2017145701A1 (en) | 2017-08-31 |
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Application publication date: 20181109 |