CN109983293A - The manufacturing method of heat exchanger and heat exchanger - Google Patents
The manufacturing method of heat exchanger and heat exchanger Download PDFInfo
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- CN109983293A CN109983293A CN201780072677.8A CN201780072677A CN109983293A CN 109983293 A CN109983293 A CN 109983293A CN 201780072677 A CN201780072677 A CN 201780072677A CN 109983293 A CN109983293 A CN 109983293A
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- tube body
- expander
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- tube
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Abstract
Heat exchanger (1) includes multiple fins (4), side plate (3) and the aluminum tube body (2) being inserted into fin and side plate.Tube body is and integrated with fin and side plate by being processed by tube expander expander.Tube body has the first part (21) for being formed as first external diameter (d1), the second part (23) for the second external diameter (d2) for being formed larger than first external diameter and the tapered portion (22) for connecting first part and second part.The outer peripheral surface of first part is crimped with the formation of the inner peripheral surface of fin hole (42).The outer peripheral surface of second part is crimped with the inner peripheral surface of opening portion (30).The end of the tapered portion side of second part is located inside compared with open end (31).The end of the tapered portion side of second part is located at more lateral compared with the fin adjacent to side plate.Thus, it is possible to inhibit to lead to the problem of because of expander.
Description
Cross reference to related applications
The application is with the Japanese patent application 2016-229038 submitted on November 25th, 2016 and November 7 in 2017
Apply based on Japanese patent application 2017-214958 that day submits, the disclosure of basis application is incorporated by reference into this
Application.
Technical field
This disclosure relates to the manufacturing method of a kind of heat exchanger and heat exchanger.
Background technique
Patent document 1 discloses a kind of heat exchanger and its manufacturing method.The heat exchanger includes tube body, fin and side
Plate.When manufacturing the heat exchanger, firstly, arranging side plate and multiple fins at a predetermined interval, and tube body is inserted into fin and side
In the through-hole of plate.Then, there will be the mandrel of expander head out of nozzle indentation pipe in front end, and in the whole length where fin
It is upper that expander is carried out to tube body using expander head.By this tube enlarging operation, keep tube body integrated with fin and side plate.
Existing technical literature
Patent document
Patent document 1: special open 2009-248138 bulletin
Summary of the invention
In the technology disclosed in patent document 1, side plate and fin pass through an expander head progress expander.Generally, due to side
Plate is thicker than fin, therefore the expander head for passing through side plate can bear biggish load.Friction resistance between expander head and tube body as a result,
Power increases, because the amount of abrasion powder caused by the intracorporal abrasion of pipe will increase.If continuing expander in this state, grind
Damage powder can be attached to the surface of expander head.The expander head for being attached with abrasion powder as a result, can scrape the inner face of tube body.In addition,
Since side plate and fin are to carry out expander by an expander head, the load acted on tube body increases, and can make tube body
It is impaired.As described above, expander can lead to the problem of heat exchanger bad in the technology of patent document 1.
The object of the present invention is to provide a kind of heat exchangers of bad problem for being able to suppress and generating by expander and heat to hand over
The manufacturing method of parallel operation.
A kind of heat exchanger of the disclosure comprising: tube body is formed by aluminum material and by expander；Multiple fins, point
Not Ju You for tube body insert fin hole and arrange in one direction；And it is located at a side in side plate, with multiple fins
To end fin compared to be arranged in more lateral, and be formed with for tube body insert opening portion.Tube body includes first
Point, it is close to first external diameter, and with the inner peripheral surface of fin hole；And second part, have the greater than first external diameter
Two outer diameters, and be close to the inner peripheral surface of opening portion.
According to the disclosure, heat exchanger is formed, the second part being close to by expander with side plate in tube body
Second external diameter, greater than the first external diameter for the first part being close to by expander with fin.As a result, to tube body carry out expander,
And when being fixed on fin and side plate, the expansion of the expander and second part of first part can be carried out respectively by different processes
Pipe.Therefore, it is possible to reduce the load of tube body is acted on when expander.Moreover, therefore, being able to suppress through the fixed tube body of expander and side
Generated aluminium powder when plate, to the attachment of the expander head of tube expander when through the fixed tube body of expander and fin.As described above, energy
It is enough that the heat exchanger that can inhibit the bad problem generated by expander is provided.
A kind of heat exchanger of the disclosure comprising: tube body is formed by aluminum material and by expander；Multiple fins, point
The fin hole that Ju You not be inserted for tube body, and arrange in one direction；And it is located at a side in side plate, with multiple fins
To end fin compared to be arranged in more lateral, and be formed with for tube body insert opening portion；Wherein, tube body includes
First part is close to first external diameter, and with the inner peripheral surface of fin hole；Second part has greater than first external diameter
Second external diameter；And middle section, it is close to the inner peripheral surface of opening portion, and connect first part and second part；Wherein, in
Between part be at least close to the outer openings end of opening portion.
According to the disclosure, in a heat exchanger, the first part of tube body is close to fin, the middle section of tube body and side plate
It is close to, and the second part of tube body is located at more lateral compared with side plate.Therefore, it is fixed on it tube body progress expander
When on fin and side plate, the expander of first part and the expander of second part can be carried out respectively by different processes.Therefore,
The load of tube body is acted on when can reduce expander.Moreover, therefore, being produced when being able to suppress through the fixed tube body of expander with side plate
Raw aluminium powder, to the attachment of the expander head of tube expander when through the fixed tube body of expander and fin.It can as described above, being capable of providing
Inhibit the heat exchanger of the bad problem generated by expander.
According to a kind of manufacturing method of heat exchanger of the disclosure, heat exchanger includes: tube body, is formed by aluminum material；
Multiple fins are respectively provided with the fin hole for tube body insert；And side plate, there is the opening portion inserted for tube body；
The manufacturing method of the heat exchanger, comprising: assembly process, by be respectively formed with the fin hole with hole internal diameter multiple fins,
With the side plate for the opening portion for being formed with the opening inside diameter greater than hole internal diameter, to make side plate configuration in a manner of outermost along a side
To arrangement, and the tube body that will there is the pipe outer diameter for being less than hole internal diameter, it is inserted into fin hole and opening portion；First expander
Sequence, after assembly process, will enable the outer diameter expander of tube body is greater than hole internal diameter and to be less than outside the first of opening inside diameter
First tube expander of diameter is inserted into tubular body from the spout part of tube body, until at the part that multiple fins are inserted through；And
Second expansion process, after assembly process, in tubular body, will enable the outer diameter expander of tube body is the above ruler of opening inside diameter
Second tube expander of very little second external diameter, from the inside of the spout part of tube body insertion tube body, with the insert to tube body in side plate
Partial at least part carries out expander.
According to the disclosure, side can be come to avoid receiving when the part for being inserted into side plate for passing through tube body when the first tube expander
The load of plate.Therefore, while the load of tube body is acted on when expander can be reduced, inhibit generated aluminium powder amount.Therefore,
It can inhibit when the first tube expander passes through the part for being inserted into fin of tube body, aluminium powder is attached to the expander head of the first tube expander
?.Also, the second tube expander loaded from side bearing, not through the part for being inserted into fin of tube body.Therefore, it can keep away
The second tube expander for exempting to be attached with aluminium powder caused by the load because of side plate, across the part for being inserted into fin of tube body.As above
It is described, it is capable of providing the manufacturing method that can inhibit the heat exchanger of the bad problem generated by expander.
According to the manufacturing method of another heat exchanger of the disclosure, heat exchanger includes: to form tube body, more by aluminum material
A fin and side plate；The manufacturing method of the heat exchanger includes: assembly process, will be respectively formed with the wing with hole internal diameter
Multiple fins of film perforation and be formed with opening inside diameter greater than hole internal diameter opening portion side plate so that side plate configuration is outermost
The mode of side arranges in one direction, and the tube body that will have the pipe outer diameter for being less than hole internal diameter, is inserted into fin hole and opening
In portion；First expansion process, after assembly process, will enable tube body outer diameter expander be greater than hole internal diameter and be less than open
First tube expander of the first external diameter of mouth internal diameter, the inside of tube body is inserted into from the spout part of tube body, until the insert of tube body exists
At the part of multiple fins；And second expansion process, after assembly process, it is big for will enable the outer diameter expander of tube body
In the second tube expander of the second external diameter of opening inside diameter, it is inserted into the inside of tube body, until the outer diameter of tube body becomes from first external diameter
Second external diameter and by the part of expanding tube body, be close at the position at outer openings end of opening portion.
According to the disclosure, side can be come to avoid receiving when the part for being inserted into side plate for passing through tube body when the first tube expander
The load of plate.Therefore, the load of tube body is acted on when can reduce expander.Also, it therefore can inhibit the amount for generating aluminium powder.Therefore,
It can inhibit when the first tube expander passes through the part for being inserted into fin of tube body, aluminium powder is attached to the expander head of the first tube expander
?.Also, the second tube expander loaded from side bearing, not through the part for being inserted into fin of tube body.Therefore, it can keep away
Exempt from the second tube expander for being attached with the aluminium powder generated by the load of side plate, across the part for being inserted into fin of tube body.As above
It is described, it is capable of providing the manufacturing method that can inhibit the heat exchanger of the bad problem generated by expander.
Detailed description of the invention
Fig. 1 is the outside drawing of heat exchanger in first embodiment.
View when Fig. 2 is from the direction II of Fig. 1.
Fig. 3 is the cross-sectional view for showing the relationship between side plate and fin and tube body.
Fig. 4 is perpendicular to the cross-sectional view of the tube axial direction of tube body.
Fig. 5 is parallel to the cross-sectional view of the tube axial direction of tube body.
Fig. 6 is the flow chart for showing the manufacturing method of heat exchanger in first embodiment.
Fig. 7 is the schematic diagram of the manufacturing process of heat exchanger in first embodiment.
Fig. 8 is the schematic diagram of the manufacturing process of heat exchanger in first embodiment.
Fig. 9 is the schematic diagram of the manufacturing process of heat exchanger in first embodiment.
Figure 10 is the schematic diagram of the manufacturing process of heat exchanger in first embodiment.
Figure 11 is the schematic diagram of the manufacturing process of heat exchanger in first embodiment.
Figure 12 is the schematic diagram of the manufacturing process of heat exchanger in first embodiment.
Figure 13 is the schematic diagram of the variation 1 of first embodiment.
Figure 14 is the schematic diagram of the variation 2 of first embodiment.
Figure 15 is the schematic diagram of the variation 3 of first embodiment.
Figure 16 is the cross-sectional view for showing the relationship in second embodiment between the side plate and fin and tube body of heat exchanger.
Figure 17 is the flow chart for showing the manufacturing method of heat exchanger in second embodiment.
Figure 18 is the schematic diagram of the manufacturing process of heat exchanger in second embodiment.
Figure 19 is the schematic diagram of the manufacturing process of heat exchanger in second embodiment.
Figure 20 is the schematic diagram of the manufacturing process of heat exchanger in second embodiment.
Figure 21 is shown between the tube body and side plate and fin for being different from Figure 15 in the heat exchanger of second embodiment
Relationship cross-sectional view.
Figure 22 is the schematic diagram of the variation of heat exchanger in second embodiment.
Figure 23 is the flow chart for showing the manufacturing method of heat exchanger in third embodiment.
Figure 24 is the schematic diagram of the manufacturing process of heat exchanger in third embodiment.
Figure 25 is the schematic diagram of the manufacturing process of heat exchanger in third embodiment.
Figure 26 is the schematic diagram of the manufacturing process of heat exchanger in third embodiment.
Figure 27 is the schematic diagram of the manufacturing process of heat exchanger in third embodiment.
Specific embodiment
Each embodiment is illustrated with reference to the accompanying drawings of the specification.In various embodiments, implement to first
Repeated explanation using same reference marker and is omitted sometimes in the corresponding part of the item illustrated in mode.In each embodiment
In when being only illustrated to a part of structure, other embodiment party that the other parts about structure illustrated before can be used
Formula.In various embodiments, not only particularly pointing out can combine between the part that can be combined, as long as not generating to combination
It especially interferes, part combination can be carried out between embodiment not indicating.Hereinafter, setting side plate 3 is located at more
The outside of a fin 4, and multiple fins 4 are located at the inside of side plate 3.
(first embodiment)
It is illustrated below with reference to heat exchanger 1 of Fig. 1-Figure 12 to first embodiment.Heat exchanger 1 provide fluid with
Heat exchange between fluid.As shown in Figure 1, heat exchanger 1 has multiple fins 4, side plate 3 and it is inserted into fin 4 and side plate 3
In aluminum tube body 2.For example, as shown in Fig. 2, heat exchanger 1 is in generally L-shaped when observing along the direction of fin 4.Heat is handed over
Parallel operation 1 is a kind of by arrangement fin 4 and side plate 3 in one direction, then tube body 2 is inserted into fin hole 42 and opening portion 30,
And expander is carried out so that it is close to and manufactured heat exchanger with fin hole 42 and opening portion 30 to tube body 2.Tube body 2 is set as more
It is a.Tube body 2, which is connected respectively to, to be introduced into the inlet tube of fluid, the U-tube for making adjacent tube body 2 be connected to each other and makes in tube body 2
The outlet of circulation, and form fluid flow passageway.
General heat exchanger, between fabrication stage middle tube body and fin hole be close to and tube body and opening portion between
Abutting, be that tube body expander is carried out by using common tube expander.In general, tube expander includes the expansion for expanding tube body
Tube head and front end are provided with expander head and the mandrel for expander head to be inserted into tubular body.By the way that the tube expander is inserted
Tube body is led to, expand tube body from inside using expander head and carries out expander, to make by the tube body of expander and fin hole and open
Oral area is close to.At this point, when tube expander passes through the part for being inserted into side plate of tube body, because the friction between expander head and tube body is made
At tube body abrasion and generate aluminium powder, expander is continued to tube body due to tube expander later, the aluminium powder of generation can be attached to expansion
On the surface of the expander head of pipe device.When aluminium powder is attached in this way on expander head, it may occur that various problems.That is,
If the attachment of aluminium powder increases, the expander load acted on tube expander will increase.Thus the load meeting needed for tube expander promotes
Increase, thus the reason of becoming increased costs in expander facilities and equipments.In addition, when the expander load increased causes tube body to be bent
When, then it can not form the shape of heat exchanger.
In order to reduce expander load, it may be considered that special surface processing is carried out to tube expander, for example, carrying out reducing DLC etc.
The processing of the frictional resistance of (diamond-like-carbon) tube expander.However, this will increase the system for implementing the tube expander that special surface is handled
Standby cost.It is, of course, also possible to consider by injecting a large amount of expander oil or using highly viscous expander oil etc., it is negative to reduce expander
It carries.However, such method needs to carry out large-scale ungrease treatment in the process after expander again.
As described above, may be led to the problem of various when aluminium powder is attached on expander head.The heat of first embodiment is handed over
Parallel operation 1 has the structure for being able to suppress aluminium powder attachment.Hereinafter, will be illustrated first to each structural element of heat exchanger 1.
Fin 4 has plate-like base 40 and is formed with the collar portion (collar) 41 for the fin hole 42 inserted for tube body 2.
Fin 4 is the flat fin formed by such as aluminum material.Alternatively, fin 4 can be formed by the metal material except aluminium.Collar portion
41 have the bending section 41a that is bent and extends along tube axial direction from base portion 40 and are formed as from bending section 41a to diameter outside direction
The flange part 41b of extension.Collar portion 41 is that the part for the fin hole 42 inserted for tube body 2 is formed on fin 4.Fin hole 42
Inner peripheral surface be close to the outer peripheral surface of tube body 2.It is close to by this, fin 4 is fixed on tube body 2.Therefore, fin hole 42 is interior
Diameter, the outer diameter i.e. first external diameter d1 with the part for being inserted into fin hole 42 of tube body 2 are substantially the same.Multiple fins 4 exist
It is arranged on the plate thickness direction only separated by predetermined space.It is connect for example, fin 4 is arranged in its flange part 41b with adjacent fin 4
Touching.
Side plate 3 is the tabular component formed by metal material.Such as side plate 3, it is formed to be greater than the aluminium of fin 4 by plate thickness
System, copper or stainless steel plate.Side plate 3 configures compared with the fin 4 in multiple fins 4, positioned at the end of orientation
More lateral.In other words, side plate 3 configures compared with the fin 4 in multiple fins 4, positioned at the end of orientation in more lateral.Side
Plate 3 is for example configured to, and is contacted with the flange part 41b of adjacent fin 4.That is, the flange part 41b of present embodiment is and side plate 3
One example of the contact portion of contact.Side plate 3 and adjacent 4 configured in parallel of fin.Side plate 3 has to be opened for what tube body 2 was inserted
Oral area 30.Opening portion 30 is the through-hole that side plate 3 is penetrated through for example on plate thickness direction.Opening portion 30 have outside open end 31,
The open end 32 of inside and the inner peripheral surface for connecting open end 31 and open end 32.Open end 31 is the opening portion 30 of side plate 3
One example at outer openings end.Inner peripheral surface has the contact surface 30a contacted with the second part 23 of tube body 2.Side plate 3 is bearing
Component, opening 30 and tube body 2 are close to support tube body 2.
Tube body 2 is formed by aluminum material.The channel of the offer heat-exchange fluid of tube body 2.As shown in Figures 4 and 5, tube body 2 has
On inner peripheral surface, direction multiple lug boss 26a outstanding into diameter.Between multiple lug boss 26a, it is formed with groove portion 26b.It is multiple
Groove portion 26b is equally spaced formed in the circumferential.Multiple groove portion 26b are the helicla flute of the axial direction along tube body 2 and helical form formation.Slot
Portion 26b generates turbulent flow by making in the heat-exchange fluid of 2 internal circulation of tube body, to promote between heat-exchange fluid and tube body 2
Heat transmitting, and improve the heat exchange performance of heat exchanger 1.In the cross-sectional view of tube body 2 shown in Fig. 3 and Fig. 7-Figure 12,
Groove portion 26b is omitted for the sake of simplicity.Tube body 2 is by the heat transfer of the heat-exchange fluid of internal circulation to fin 4.
As shown in figure 3, tube body 2 has the first part 21 for being formed as first external diameter d1, is formed larger than first external diameter
The second part 23 of second external diameter d2 and the tapered portion 22 for connecting first part 21 and second part 23.First part 21 is
Insert a part of the tube body 2 of multiple fins 4.That is, the outer peripheral surface of first part 21, forms with the inner peripheral surface of fin hole 42 and presses
It connects.Therefore, first external diameter d1 and the internal diameter of fin hole 42 are essentially identical size.The internal diameter of fin hole 42 can also mark for
Internal diameter d1.The end of 22 side of tapered portion of first part 21, the open end with opening portion 30 are nearly seated at phase on tube axial direction
Same position.Therefore, the fin hole 42 of adjacent fin 4, being set as will not be expanding for greater than internal diameter d1.Second part 23 has
The part crimped with the opening portion 30 of side plate 3.That is, the outer peripheral surface of second part 23 has the part being crimped on contact surface 30a.
The end of 22 side of tapered portion of second part 23, than opening portion 30 open end 31 closer to fin 4.
The end of 22 side of tapered portion of second part 23, compared with the fin hole 42 adjacent to the fin 4 of side plate 3 closer to
Outside.In the example depicted in fig. 3, the end of 22 side of tapered portion of second part 23, be located at open end 31 and open end 32 it
Between.In other words, tube body 2 Zi be inserted into opening portion 30 part, to the part the cardinal extremity of flare 24 by expander be second
Outside diameter d 2.
Spout part 240 is the part for forming the open end of tube body 2.Flare 24 is created as the part of horn shape, should
Horn shape is towards spout part 240, and expanding is greater than second part 23.Spout part 240 is connect with U-tube.Flare 24 exists
When spout part 240 is connect with U-tube, have the function of improving attended operation.U-tube connects adjacent tube body 2 and tube body 2.
Alternatively, spout part 240 is connect with the inlet tube for introducing heat-exchange fluid.Alternatively, the heat to circulate in spout part 240 and tube body 2 is handed over
The outlet connection of change of current body outflow.Spout part 240 and U-tube, inlet tube and outlet, such as pass through soldered joint company
It connects.
The heat exchanger 1 of first embodiment is compared with the heat exchanger 1 of aftermentioned second embodiment, tube body 2 and side
The contact area of the inner peripheral surface of opening portion 30 on plate 3 is bigger.Therefore, tube body 2 and side plate 3 can more stably be fixed.Cause
This, the heat exchanger 1 of first embodiment, suitable for being used in the case where vehicle etc. vibrates relatively large installation environment.
With reference to Fig. 6-Figure 11, the manufacturing method of the heat exchanger 1 of first embodiment is illustrated.Such as the process of Fig. 6
Shown in figure, heat exchanger 1 is manufactured by assembly process S10, the first expansion process S20 and the second expansion process S30.Heat exchange
Device 1 crimps fin 4 and pipe by carrying out expander to the tube body 2 with the pipe outside diameter d t that can be inserted into fin 4 and side plate 3
Body 2 and side plate 3 are manufactured with tube body 2.When manufacturing heat exchanger 1, the first tube expander 60 and are used as manufacturing device
Two tube expanders 61.
In assembly process S10, multiple fins 4 of the fin hole 42 with hole internal diameter df will be formed with, and be formed with
The side plate 3 of opening portion 30 greater than the opening inside diameter ds of hole internal diameter df, arranges on plate thickness direction.At this point, multiple fins 4 are arranged
The flange part 41b for arranging into each fin 4 is in contact with adjacent fin 4.Multiple fins 4 are aligned to the protrusion side of its collar portion 41
To for the same direction.Side plate 3 is configured in a manner of contacting with the flange part 41b of the fin 4 adjacent to side plate 3 in orientation
End.At this point, the fin hole 42 of multiple fins 4 and the opening portion 30 of side plate 3 are configured on the same axis.
Next, to the multiple fins 4 arranged fin hole 42 and side plate 3 opening portion 30 in, insert pipe outer diameter
Dt is less than the tube body of hole internal diameter df.Therefore, the inner peripheral surface of fin hole 42 and opening portion 30 and the peripheral surface of tube body 2 are not at this time
It is close to.After having inserted tube body 2, into the first expansion process S20.
In the first expansion process S20, the first tube expander 60 is inserted into the inside of tube body 2 from spout part 240.Fig. 7 be to
The schematic diagram of state of the tube body 2 configured in assembly process S10 before the insertion of the first tube expander 60.First tube expander 60 packet
Include for example, outer diameter be greater than 2 internal diameter of tube body of pipe state expander head and for by expander head to inserting inside tube body 2
Mandrel.First tube expander 60 is and the tube expander of expander can be carried out to tube body 2 by being inserted into inside the tube body 2 of pipe state.
First tube expander 60 can keep the outer diameter of tube body 2 expanding for first external diameter d1 from pipe outside diameter d t by 2 expander of tube body.
It is inserted into the first tube expander 60 inside tube body 2 from spout part 240, is pushed ahead while to 2 expander of tube body.
Fig. 8 is the schematic diagram of the state for the first tube expander pushed ahead while to 2 expander of tube body.First tube expander 60, at it
When passing through the part for being inserted into side plate 3 of tube body 2 in fin hole, since the opening inside diameter ds of opening portion 30 is formed larger than the
One outside diameter d 1, therefore tube body 2 is not crimped with side plate 3, tube body 2 is not subject to load from the expander of side plate 3.
As shown in figure 9, the expander head of the first tube expander 60, is inserted into the portion for being inserted into the tube body 2 of the fin 4 arranged
Exist respectively.Expander head is inserted in the entirety of the part for being inserted into fin 4 of tube body 2.Since the hole internal diameter df of fin hole 42 is formed
For less than first external diameter d1, therefore fin hole 42 is crimped with the formation of the outer peripheral surface of the tube body 2 after expander.At this point, fin hole 42
Internal diameter, expanding from hole internal diameter df is the internal diameter substantially the same with first external diameter d1.When the expander head of the first tube expander 60 is in pipe
When inserting in the entirety of the part for being inserted into fin 4 of body 2, the first tube expander 60 is extracted from tube body 2, completes the first expander
Sequence S20.
After the first expansion process S20, into the second expansion process S30.In the second expansion process S30, by second
Tube expander 61 is inserted into tube body 2.Figure 10 is the schematic diagram of state of the tube body 2 before the insertion of the second tube expander 61.Second expander
Device 61 includes: wide diameter portion 61b, has the outer diameter for the outer diameter expander second external diameter d2 that can make tube body 2；And top end part
61a has from the end of wide diameter portion 61b to the conical by its shape of the direction of insertion of the second tube expander 61 gradually undergauge.Second expands
Pipe device 61 has the loudspeaker forming portion 61c of conical by its shape, phase of the loudspeaker forming portion 61c from the top end part side 61a of wide diameter portion 61b
It tosses about end, the opposite direction to direction of insertion is gradually expanding.Second tube expander 61 is by being inserted into spout part from top end part 61a
240, the tube expander of expander can be carried out to tube body 2.
Second tube expander 61 is while carrying out further expander to the tube body 2 crossed by 60 expander of the first tube expander, insert
To the inside of tube body 2.Second tube expander 61 is inserted extremely, is the by the part expander than open end 31 closer to the tube body 2 of inside
At two outside diameter ds 2.The outer peripheral surface of the expanding tube body 2 for second external diameter d2 as a result, is crimped with the formation of the inner peripheral surface of opening portion 30.Cause
This, opening inside diameter ds and second external diameter d2 are identical size.In addition, being opened with what the expanding tube body 2 for second external diameter d2 contacted
The inner peripheral surface of oral area 30, can be expanding for greater than opening inside diameter ds by expander.In this case, pass through in opening portion 30
The internal diameter of expander and expanding part, i.e., the internal diameter of the part contacted with the second part 23 of tube body 2 become and the
Two outside diameter ds 2 are identical.
As shown in figure 11, the second tube expander 61 is inserted in tube body 2, until the end of the expanding part for second external diameter d2
Portion is with open end 32 on tube axial direction, positioned at almost the same position.The insert of second tube expander 61 is carried out in tube body 2
In be inserted into fin hole 42 part front at.In this way, the second tube expander 161 can insert to tube body 2 in the part of side plate 3
At least part carry out expander.At this point, spout part 240 by the loudspeaker forming portion 61c of the second tube expander 61 by expander at loudspeaker
Shape.Accordingly it is also possible to say the insert of the second tube expander 61 to towards spout part 240, expander is at the position of horn shape.With
This mode, the second tube expander 61 form flare 24, and the flare 24 is expanding for than second part 23 towards spout part 240
Bigger horn shape.Hereafter, as shown in figure 12, the second tube expander 61 is moved back and is extracted from the inside of tube body 2, to complete the
Two expansion process S30.As a result, as shown in figure 3, tube body 2 and fin 4 and the integrated heat exchanger 1 of side plate 3 can be produced.
In the second expansion process S30, the second tube expander 61 is inserted into than being inserted into fin hole 42 in tube body 2
Partially closer to front side.Instead, in the degree that will not be led to the problem of to the performance of heat exchanger 1, the second expander
Device 61 can by the insert of tube body 2 fin hole 42 part expander to second external diameter d2.For example, can be by the second tube expander 61
Insertion, until the insert of tube body 2 is second external diameter d2 in the part expander of the fin hole 42 of a fin 4 adjacent to side plate 3.
Alternatively, the second tube expander 61 can also be inserted into, until by tube body 2, insert including a piece of fin 4 adjacent to side plate 3
Part expander in the fin hole 42 of multi-disc fin 4 inside is second external diameter d2.It in the case of that construction, although can
Expect such as fin hole 42 is unbearable breakage is led to as the expanding of the second tube expander 61, but if manufacture heat exchanger
1 in use without leading to the problem of, then can allow this structure.
Next, the heat exchanger 1 to first embodiment and function and effect brought by the manufacturing method of heat exchanger 1
It is illustrated.The heat exchanger 1 of first embodiment includes: to be formed by aluminum material and by the tube body of expander 2 and be respectively provided with
The fin hole 42 inserted for tube body 2 and the multiple fins 4 arranged in one direction.Heat exchanger 1 includes side plate 3, and more
Fin 4 in a fin 4 positioned at the end in a direction, which is compared, to be arranged in more lateral, and is formed with for the insert of tube body 2
Opening portion 30.Tube body 2 includes: first part 21, is close to first external diameter d1 and with the inner peripheral surface of fin hole 42；And
Second part 23 has the second external diameter d2 greater than first external diameter d1 and is close to the inner peripheral surface of opening portion 30.
Accordingly, heat exchanger 1 is formed, and the second of the second part 23 in tube body 2 being close to by expander with side plate 3
Outside diameter d 2, greater than the first external diameter d1 of the first part 21 in the tube body 2 being close to by expander with fin 4.Therefore, to tube body
2 progress expanders and when being fixed on fin 4 and side plate 3, can respectively by different processes carry out the expander of first part 21 with
The expander of second part 23.Therefore, the load of tube body is acted on when can reduce expander.In addition, thus, it is possible to inhibit to pass through expansion
Attachment of the fixed tube body 2 of pipe with aluminium powder generated when side plate 3 to the expander head of the first tube expander 60.Therefore, it is able to suppress logical
The first tube expander 60 of aluminium powder, the scraping to the inner face of tube body 2 are attached with when crossing the fixed tube body 2 of expander and fin 4.Moreover, by
In the part for being inserted into side plate 3 of 61 expander of the second tube expander to tube body 2, therefore it is able to suppress is attached with the second of aluminium powder at this time
Tube expander 61, to the expander of the part for being inserted into fin 4 of tube body 2.As described above, being capable of providing can inhibit because of expander generation
The heat exchanger of bad problem.
Tube body 2 further includes flare 24, and the flare 24 is from second part 23 to spout part 240 by expander at bottom exhibition
It opens.According to this structure, available heat exchanger 1, the heat exchanger 1 can have improvement that other tube bodies are embedded and connected
The function of connection operability when being connected on tube body 2 and it can be improved manufacturing and product scalability.
In the manufacturing method of the heat exchanger 1 of first embodiment, in assembly process S10, have to being respectively formed with
Multiple fins 4 of the fin hole 42 of hole internal diameter df, and be formed with the opening portion 30 of opening inside diameter ds greater than hole internal diameter df
Side plate 3 is arranged.At this point, the configuration of side plate 3 is arranged side plate 3 and fin 4 in a manner of outermost in one direction.It
Afterwards, the tube body 2 that will have the pipe outside diameter d t for being less than hole internal diameter df, is inserted into fin hole 42 and opening portion 30.In assembler
After sequence S10, into the first expansion process S20.In the first expansion process S20, it is big for will enable the outer diameter expander of tube body 2
Tube body 2 is inserted into from spout part 240 in hole internal diameter df and the first tube expander 60 of the first external diameter d1 less than opening inside diameter ds
Inside, until the insert of tube body 2 is at the part of multiple fins 4.After assembly process S10, into the second expansion process
S30.In the second expansion process S30, it will enable the outer diameter expander of tube body 2 for the second external diameter of opening inside diameter ds dimensions above
The second tube expander 61 of d2 is inserted into the inside of tube body 2, and at least part with the insert to tube body 2 in the part of side plate 3 carries out
Expander.
Accordingly, it can be born to avoid when the first tube expander 60 passes through the part of tube body 2 for being inserted into side plate 3 from side plate 3
Load.Therefore, the load of tube body 2 is acted on when can reduce expander.Also, therefore it is able to suppress the aluminium powder amount of generation.Therefore,
It can inhibit attachment of the aluminium powder to expander head when the first tube expander 60 passes through the part for being inserted into fin 4 of tube body 2.Also,
The second tube expander 61 that load is born from side plate 3, not through the part for being inserted into fin 4 of tube body 2.It can thus be avoided
It is attached with the second tube expander 61 of aluminium powder caused by the load from side plate 3, across the part for being inserted into fin 4 of tube body 2.
Therefore, it is able to suppress the second tube expander 61 for being attached with aluminium powder, to the expander of the part for being inserted into fin 4 of tube body 2.Institute as above
It states, is capable of providing the manufacturing method that can inhibit the heat exchanger of the bad problem generated by expander.
Tube body 2 has groove portion 26b on inner peripheral surface.In general heat exchanger, because acting on tube body inner circumferential when expander
Load on face, the part formed a groove can collapse, to reduce the heat exchange performance improvement generated by groove portion.First
In the heat exchanger 1 of embodiment, since the load acted on tube body 2 when expander is suppressed, form a groove 26b's
Collapsing for lug boss 26a can mitigate, so as to obtain heat exchange performance improvement.
(variation 1 of first embodiment)
Below with reference to Figure 13, the variation 1 of the heat exchanger 1 of first embodiment is illustrated.In the variation
It, will be at the position of 2 expander of tube body to open end 32 on tube axial direction in second expansion process S30.The taper of second part 23
The end of 22 side of portion is located at roughly the same position with open end 32 on tube axial direction.Therefore, tube body 2 and opening portion 30
Inner peripheral surface mutually crimps.Tapered portion 22 is inserted into the fin hole 42 of the fin 4 adjacent to side plate 3.
In the heat exchanger 1 of variation 1, tube body 2 and side plate 3 crimp on the entire inner peripheral surface of opening portion 30.Therefore,
Tube body 2 and side plate 3 can more stably be fixed.
(variation 2 of first embodiment)
Below with reference to Figure 14, the variation 2 of the heat exchanger 1 of first embodiment is illustrated.In the dress of variation 2
With in process S10, multiple fins 4, which are arranged between flange part 41b and adjacent fin 4, has gap.Adjacent to the wing of side plate 3
Piece 4 is configured to have gap between flange part 41b and side plate 3.In the second expansion process S30 of variation 2, second expands
Pipe device 61 is inserted through, by tube body 2 on tube axial direction expander to than open end 32 closer to the part of inside.Second tube expander
61, by tube body 2 until the front part expander adjacent to the fin hole 42 of side plate 3 is second external diameter d2.
In the heat exchanger 1 of variation 2, the end of 22 side of tapered portion of second part 23 is located at open end 32 and wing
Between the end of 3 side of side plate of film perforation 42.Therefore, tube body 2 is mutually crimped with the entire inner peripheral surface of opening portion 30.Tapered portion 22 is inserted
In the fin hole 42 adjacent to the fin 4 of side plate 3.
Multiple fins 4, which are arranged between flange part 41b and adjacent fin 4, has gap.In this way, heat exchanger 1 can be with
The fin 4 for being not in contact with each other, being separated from each other with the flange part 41b with adjacent fin 4.Adjacent to the fin 4 of side plate 3, configuration
At between flange part 41b and side plate 3 have gap.In this way, heat exchanger 1 can have the fin 4 adjacent to side plate 3,
Flange part 41b is separated with side plate 3.
(variation 3 of first embodiment)
With reference to Figure 15, the variation 3 of the heat exchanger 1 of first embodiment is illustrated.Side plate 3 is in opening portion 30
There is corner portion 33 at open end 32.Corner portion 33 is to process tapering shape to keep open end 32 expanding to 4 side of fin
Chamfered part.Therefore, corner portion 33 is the part be not close to the second part 23 of tube body 2 at opening portion 30.
When in the second expansion process S30 to 2 expander of tube body, tube body 2 and corner portion 33 are not contacted.Therefore, by falling
Corner 33 can reduce the load that the second tube expander 61 is subject to from side plate 3 in the second expansion process S30.Corner portion 33 can be with shape
At at open end 31.That is, corner portion 33 can also be to keep open end 31 expanding outward and process falling for tapering shape
Angle part.
In Figure 15, although tube body 2 on tube axial direction until position identical with open end 32 at by expander be second
Outside diameter d 2, but expander extremely can slightly be located than open end 32 in the inner part in slightly than open end 32 place's stopping in the outer part or expander.
In other words, the end of 22 side of tapered portion of second part 23 can be located on the outside of omiting compared with open end 32 on tube axial direction
Or slightly inside.
(second embodiment)
In this second embodiment, another embodiment of the heat exchanger 1 to first embodiment is illustrated.?
In Figure 16-Figure 20, it is marked with the constituent element with the attached drawing same reference numerals of first embodiment, is identical and plays identical
The constituent element of function and effect.
Tube body 2 have can be inserted into the first part 21 of fin hole 42, the tapered portion crimped with the inner peripheral surface of opening portion 30
22, and be formed as in the second part 23 than side plate 3 closer to outside.At least part of tapered portion 22, with opening portion 30
Inner peripheral surface crimping.Tapered portion 22 is formed as the open end 31 for being crimped onto opening portion 30.Tapered portion 22 be make the outer diameter of tube body 2 from
First external diameter d1 variation is for second external diameter d2 and by the part of expanding tube body 2.Tapered portion 22 is the first part of connection pipe body 2
21 and second part 23 middle section an example.The end of 22 side of tapered portion of second part 23 is located at than opening portion
30 open end 31 is closer at 240 side of spout part.Side plate 3 is fixed on tube body 2 by the crimping of tapered portion 22 by tube body 2.Pipe
Body 2 is clamped side plate 3 using the flange part 41b of tapered portion 22 and the fin 4 adjacent to side plate 3.The heat of second embodiment
Exchanger 1 is suitable for the use of fixed heat exchanger.
Then, with reference to Figure 17-Figure 20, the manufacturing method of the heat exchanger 1 of second embodiment is illustrated.Such as Figure 17
Flow chart shown in, heat exchanger 1 is made by assembly process S10, the first expansion process S20 and the second expansion process S230
It makes.Due to assembly process S10 and the first expansion process S20, with the work for referring to Fig. 7-Fig. 9 in first embodiment and being illustrated
Sequence is identical, therefore omits herein.
After the first expansion process S20, into the second expansion process S230.In the second expansion process S230, firstly,
Insert the first tube expander 60 by tube body 2 and fin 4 it is fixed after, as shown in figure 18, by the second tube expander 61 from spout part 240
It is inserted into tube body 2.As shown in figure 19, the second tube expander 61 by tube body 2 it is expanding be second external diameter d2 while insert to tube body 2
It is logical, it is expanding at by the front of open end 31 to stop when being second external diameter d2.Second tube expander 61 is advanced into, the second tube expander
61 are formed by the position that tapered portion 22 is contacted with open end 31.That is, the second tube expander 61 is advanced into, opening portion 30 and taper
At the contact snugly into each other of portion 22, side plate 3 and the fixed position of tube body 2.Later, as shown in figure 20, after making the second tube expander 61
It moves and is extracted from tube body 2, to complete the second expansion process S230.As a result, as shown in figure 16, tube body 2 and wing can be produced
Piece 4 and the integrated heat exchanger 1 of side plate 3.
In the part that one or more tube bodies 2 of multiple tube bodies 2 are inserted, side plate 3 can not be by the tapered portion of tube body 2
Clamped by the 22 flange part 41b with fin 4.That is, as shown in figure 21, the flange part 41b of fin 4 can be separated with side plate 3.I.e.
Make in this case, as long as the tube body 2 for the part that flange part 41b and side plate 3 separate, there are other tube bodies 2 in insert
If side plate 3 is clamped at part, it can be also fixed relative to side plate 3.
Next, the heat exchanger 1 to second embodiment and function and effect brought by the manufacturing method of heat exchanger 1
It is illustrated.The heat exchanger 1 of second embodiment includes being formed by aluminum material and by the tube body of expander 2.Heat exchanger 1 wraps
Include: multiple fins 4 are respectively provided with the fin hole 42 inserted for tube body 2, and arrange in one direction；And side plate 3,
It is arranged compared with being located at the fin of end in a direction in multiple fins 4 in more lateral, and is formed with for tube body insert
Opening portion 30.Tube body 2 includes: first part 21, is close to first external diameter d1 and with the inner peripheral surface of fin hole 42；The
Two parts 23 have the second external diameter d2 greater than first external diameter d1；And tapered portion 22, it is tight with the inner peripheral surface of opening portion 30
Patch, and connect first part 21 and second part 23.Tapered portion 22 is at least close to the open end 31 of opening portion 30.
Accordingly, in heat exchanger 1, the first part 21 of tube body 2 is close to fin 4, the tapered portion 22 and side plate of tube body 2
3 are close to, and the second part 23 of tube body 2 is located at more lateral compared with side plate 3.Therefore, expander is being carried out to tube body 2 and is being fixed
When on fin 4 and side plate 3, the expander of the expander of first part 21 and second part 23 can by different processes respectively into
Row.Therefore, the load of tube body 2 is acted on when can reduce expander.In addition, thus, it is possible to avoid passing through expander for tube body 2 and side
Generated aluminium powder when fixed of plate 3, the expander head of the first tube expander 60 when to by expander by tube body 2 and fixed fin 4
Attachment.As described above, being capable of providing the heat exchanger that can inhibit the bad problem generated by expander.
In the manufacturing method of the heat exchanger 1 of second embodiment, in the second expansion process S230, in tube body 2
Portion will can make the second tube expander 61 of second external diameter d2 of the outer diameter expander of tube body 2 greater than opening inside diameter ds, insert to cone
At the position that shape portion 22 is close to the open end 31 of opening portion 30, which is that the outer diameter of tube body 2 is expanding from first external diameter d1
For the part of second external diameter d2.
It, can be to avoid when the first tube expander 60 is across the part for being inserted into side plate 3 of tube body 2, receiving according to the disclosure
Load from side plate 3.Therefore, the load of tube body is acted on when can reduce expander.Also, therefore it is able to suppress the aluminium of generation
Powder amount.Therefore, when the first tube expander 60 passes through the part for being inserted into fin 4 of tube body 2, aluminium powder can be inhibited to the first expander
The attachment of the expander head of device 60.Also, wing is inserted into not through tube body 2 by the second tube expander 61 loaded from side plate 3
The part of piece 4.It can thus be avoided being attached with the second tube expander 61 of aluminium powder caused by the load because of side plate 3, tube body is passed through
2 part for being inserted into fin 4.As described above, being capable of providing the heat exchanger that can inhibit the bad problem generated by expander
Manufacturing method.
In the heat exchanger 1 of second embodiment, the flange part 41b adjacent to the fin 4 of side plate 3 is contacted with side plate 3.
Thus, it is possible to which side plate 3 is clamped and is fixed using the tapered portion 22 of tube body 2 and the flange part 41b of fin 4.It therefore, there is no need to
The outer peripheral surface that second tube expander 61 is inserted into the inner peripheral surface of opening portion 30 and the second part 23 of tube body 2 is snugly into each other.As a result,
It can inhibit expander load when the second tube expander 61 of insertion, therefore the reduction for implementing the equipment cost of expander is possibly realized.
(variation of second embodiment)
With reference to Figure 22, the variation of second embodiment is illustrated.In variation, in 31 shape of the open end of side plate 3
At the corner portion 31a for having conical by its shape.Corner portion 31a can be previously formed on side plate 3 before assembly process S10.Alternatively,
Corner portion 31a can also be formed before the second expansion process S230.Corner portion 31a exists with by the second expansion process S230
The tapered portion 22 formed on tube body 2 is close to.Even if in such a configuration, since side plate 3 is by the tapered portion 22 and fin of tube body 2
4 flange part 41b clamping, therefore also can be fixed by side plate 3 and tube body 2.
(third embodiment)
In the third embodiment, the another of the manufacturing method of the heat exchanger 1 about first embodiment is disclosed
Kind manufacturing method.In Figure 23-Figure 27, the step of being marked with the attached drawing same reference numerals with first embodiment and composition are wanted
Element is identical and the step of play identical function and effect and constituent element.
With reference to Figure 23-Figure 27, the manufacturing method of the heat exchanger 1 of third embodiment is illustrated.As shown in figure 23,
Heat exchanger 1 passes through assembly process S10, the first expansion process S20, the second expansion process S330 and third expansion process
S340 is manufactured.Assembly process S10 and the first expansion process S20 is illustrated with Fig. 7-Fig. 9 is referred in first embodiment
Process is identical.Only the content different from aforementioned embodiments is illustrated below.
The manufacturing method of third embodiment is that the second expansion process S30 in aforementioned embodiments is divided into for shape
At the method for the second expansion process S330 and the third expansion process S340 for being used to form flare 24 of second part 23.
According to the manufacturing method of third embodiment, the second expansion process S330 is carried out after the first expansion process S20.
In the second expansion process S330, the second tube expander 161 is inserted into tube body 2.Figure 24 is tube body 2 in the second tube expander 161
Status diagram before insertion.Second tube expander 161 includes: wide diameter portion 61b, has the outer diameter expander that can make tube body 2
For the outer diameter of second external diameter d2；And top end part 61a, there is the insertion from the end of wide diameter portion 61b to the second tube expander 61
The conical by its shape of direction gradually undergauge.Second tube expander 161 be inserted into spout part 240 from top end part 61a, and to tube body 2 into
The tube expander of row expander.As shown in figure 25, in the same manner as foregoing first embodiment, the second tube expander 161 is from 240 quilt of spout part
It is inserted into the inside of tube body 2, expander is carried out at least part of the insert to tube body 2 in the part of side plate 3.In the second expander
In process S330, tapered portion 22 is formed by top end part 61a, and second part 23 is formed by wide diameter portion 61b.
After the second expansion process S330, into third expansion process S340.In third expansion process S340, by
Three tube expanders 62 are inserted into tube body 2.Figure 26 is status diagram of the tube body 2 before the insertion of third tube expander 62.Third expands
There is pipe device 62 loudspeaker forming portion 62a, the loudspeaker forming portion 62a to have from the end of cylindric axle portion, to third tube expander 62
Direction of insertion gradually undergauge conical by its shape.As shown in figure 25, third tube expander 62 is to be inserted into spout part from top end part
240, and the tube expander of expander is carried out with bottom expansion shape line up portion 240.Third expansion process S340 is as the first expander
Another process except sequence S20 and the second expansion process S, be for formed internal diameter towards the spout part 240 of tube body 2 and it is widened
The process of flare 24.
Second expansion process S330 of third embodiment can also be substituted for following process, i.e., insert the second tube expander 61
Enter the inside of tube body 2, until tube body 2 outer diameter from first external diameter d1 become second external diameter d2 and by the part of expanding tube body 2
It is close to the position at the outer openings end 31 of opening portion 30.
The manufacturing method of the heat exchanger 1 of third embodiment has and is used as the first expansion process S20 and the second expander
The third expansion process S340 of process except sequence S330 is the widened flare 24 of spout part 240 for internal diameter towards tube body 2
Formation process.According to the manufacturing method, due to the first part 21 for forming enlarged tube portion in tube body 2, second part
23 and flare 24 can be carried out by different processes, therefore 2 in them enlarged tube portion not be formed simultaneously,
Thus it is able to suppress the load for being applied to tube body 2.Therefore, a kind of bad problems such as the bending that can inhibit tube body 2 are capable of providing
Manufacturing method.
(other embodiments)
The summary of the invention of this specification is not limited to the embodiment enumerated.Summary of the invention includes the implementation being listed out
Mode and those skilled in the art are based on variant embodiment obtained from them.For example, summary of the invention is not limited to embodiment party
The combination of component, element disclosed in formula can carry out various deformation and implement.Summary of the invention can be by multiple combinations come real
It applies.Summary of the invention can also have the addition part that can be appended in embodiment.Summary of the invention includes component in embodiment, wants
The embodiment that element is omitted.Summary of the invention includes the displacement of a component, element between embodiment and other embodiments
Or combination.Disclosed technical scope is not limited to the record of embodiment.
It in the above-described embodiment, is that the first tube expander 60 after extracting in tube body 2, is being inserted into the second tube expander
61, but the second tube expander 61 can also be inserted into the case where not extracting the first tube expander 60.In this case it is possible, for example, to
Use such second tube expander, insertion hole that the mandrel with the first tube expander 60 can insert, coaxial with mandrel.
That is, the second tube expander can be inserted while inserting mandrel to insertion hole in the state that the first tube expander 60 is inserted in tube body 2
Enter into tube body 2, so that the second expansion process can be entered by not having to the first tube expander 60 of extraction.
In the above-described embodiment, tube body 2 its perpendicular to axial section be circle, but the shape in section is not limited to justify
Shape.For example, can use perpendicular to axial section as the tube body 2 of flat elliptic.
In the above-described embodiment, 2 expander of tube body is and had before expander by the first tube expander 60 and the second tube expander 61
Similar cross sectional shape is circle, but can also be used 2 expander of tube body as tube expander of different shapes.For example, the first expander
Device 60 and the second tube expander 61 can be the tube expander for making tube body 2 from round expander polygon.Also, 60 He of the first tube expander
Second tube expander 61 is also possible to carry out expander and make the cross sectional shape of tube body 2 from the shape expander outstanding before expander
Device.That is, the first tube expander 60 and the second tube expander 61 can be a part of expanding tube expander for carrying out expander and making tube body 2.
In the above-described embodiment, collar portion 41 from the bending section 41a outstanding of base portion 40 and from bending section 41a by erecting
End formed, but the shape of collar portion 41 is without being limited thereto.For example, collar portion 41 can be the shape without flange part 41b
Shape.
Although in the above-described embodiment, fin 4 has collar portion 41, it can also be the knot without collar portion 41
Structure.That is, it, which is also possible that, is directly punched out the structure that the modes such as processing form fin hole 42 by the base portion 40 to fin 4.
It in the above-described embodiment, is to implement the second expansion process again after implementing the first expansion process, but it can also be with
Implement the second expansion process and then implements the first expansion process.
Although manufacturing method disclosed in above embodiment is described as according to the first expansion process, the second expansion process
It is carried out with the sequence of third expansion process, but as long as each road of the first expansion process, the second expansion process and third expansion process
Process is implemented after assembly process.Therefore, the implementation of the first expansion process, the second expansion process and third expansion process
Sequence is not limited to the sequence recorded in above embodiment.
According to embodiment, the present invention is described above, it should be understood that the present invention is not limited to above real
Apply mode or structure.The present invention further includes various modifications example, the deformation in equivalent scope certainly.In addition to this, of the invention each
Kind of element includes more or less than these elements or only to wrap though having in above-mentioned various combinations, embodiment disclosed
Other combinations, embodiment containing an element in these elements are encompassed by scope of the invention, in thought range.
Claims (8)
1. a kind of heat exchanger comprising:
Tube body (2), is formed by aluminum material and by expander；
Multiple fins (4) are respectively provided with the fin hole (42) for tube body insert and arrange in one direction；And
Side plate (3) is arranged compared with being located at the fin of end in one direction in the multiple fin outer
Side, and the opening portion (30) being formed with for tube body insert；
Wherein, the tube body includes
First part (21) is close to first external diameter (d1), and with the inner peripheral surface of the fin hole；And
Second part (23) has the second external diameter (d2) greater than the first external diameter, and the inner peripheral surface with the opening portion
It is close to.
2. a kind of heat exchanger comprising:
Tube body (2), is formed by aluminum material and by expander；
Multiple fins (4) are respectively provided with the fin hole (42) for tube body insert and arrange in one direction；And
Side plate (3) is located at more lateral compared with being located at the fin of end in one direction in the multiple fin,
And the opening portion (30) being formed with for tube body insert；
Wherein, the tube body includes
First part (21) is close to first external diameter (d1), and with the inner peripheral surface of the fin hole；
Second part (23) has the second external diameter (d2) greater than the first external diameter；And
Middle section (22), is close to the inner peripheral surface of the opening portion, and connects the first part and the second part；
Wherein,
At least it is close to the outer openings end (31) of the opening portion middle section.
3. heat exchanger according to claim 2, wherein adjacent to the fin of the side plate, have and the side
The contact portion (41b) of plate contact.
4. heat exchanger according to claim 1-3, wherein the tube body has groove portion on inner peripheral surface
(26b)。
5. heat exchanger according to claim 1-4, wherein the tube body also has flare (24), the loudspeaker
Portion (24) is bottom expansion by expander from the second part to spout part (240).
6. a kind of manufacturing method of heat exchanger, wherein the heat exchanger includes: the tube body (2) formed by aluminum material, multiple
Fin (4) and side plate (3)；
The manufacturing method of the heat exchanger includes:
Assembly process (S10) by the multiple fin for being respectively formed with the fin hole with hole internal diameter (df) and is formed with big
The side plate in the opening portion (30) of the opening inside diameter (ds) of the hole internal diameter, so that side plate configuration is in outermost side
Formula upper arrangement, and the tube body that will have the pipe outer diameter (dt) for being less than the hole internal diameter in one direction, is inserted into described
In fin hole and the opening portion；
First expansion process (S20), after the assembly process, will enable the outer diameter expander of the tube body is greater than described
The first tube expander (60) of hole internal diameter and the first external diameter (d1) less than the opening inside diameter, from the spout part of the tube body
(240), it is inserted into the inside of the tube body, until at the part that the multiple fin is inserted through；And
Second expansion process (S30, S330) will enable the outer diameter expander of the tube body for institute after the assembly process
The second tube expander (61) for stating the second external diameter (d2) of opening inside diameter dimensions above is inserted into institute from the spout part of the tube body
The inside of tube body is stated, and at least part to the insert of the tube body in the part of the side plate carries out expander.
7. a kind of manufacturing method of heat exchanger, wherein the heat exchanger includes: the tube body (2) formed by aluminum material, multiple
Fin (4) and side plate (3)；
The manufacturing method of the heat exchanger includes:
Assembly process (S10) by the multiple fin for being respectively formed with the fin hole with hole internal diameter (df) and is formed with big
Side plate in the opening portion of the opening inside diameter (ds) of the hole internal diameter, to make side plate configuration in a manner of outermost along one
Direction arrangement, and the tube body that will have the pipe outer diameter (dt) for being less than the hole internal diameter, are inserted into the fin hole and institute
It states in opening portion；
First expansion process (S20), after the assembly process, will enable the outer diameter expander of the tube body is greater than described
The first tube expander (60) of hole internal diameter and the first external diameter (d1) less than the opening inside diameter, from the spout part of the tube body
(240), it is inserted into the inside of the tube body, until the insert of the tube body is at the part of the multiple fin；And
Second expansion process (S230, S330), after the assembly process, it is big for will enable the outer diameter expander of the tube body
In the second tube expander (61) of the second external diameter (d2) of the opening inside diameter, it is inserted into the inside of the tube body, until the tube body
Outer diameter become the second external diameter by the part of the expanding tube body from the first external diameter, be close to the opening portion
At the position at outer openings end (31).
8. the manufacturing method of heat exchanger according to claim 6 or 7, wherein it further include third expansion process (S340),
I.e. after the assembly process, as another process except first expansion process and second expansion process,
Formed internal diameter towards the tube body the spout part and widened flare (24).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-229038 | 2016-11-25 | ||
| JP2016229038 | 2016-11-25 | ||
| JP2017-214958 | 2017-11-07 | ||
| JP2017214958A JP7154747B2 (en) | 2016-11-25 | 2017-11-07 | Heat exchanger and heat exchanger manufacturing method |
| PCT/JP2017/041387 WO2018097044A1 (en) | 2016-11-25 | 2017-11-17 | Heat exchanger and method for manufacturing heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109983293A true CN109983293A (en) | 2019-07-05 |
Family
ID=62565908
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780072677.8A Pending CN109983293A (en) | 2016-11-25 | 2017-11-17 | The manufacturing method of heat exchanger and heat exchanger |
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| JP (1) | JP7154747B2 (en) |
| CN (1) | CN109983293A (en) |
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| JPS5642685U (en) * | 1979-09-04 | 1981-04-18 | ||
| US4502532A (en) * | 1981-03-04 | 1985-03-05 | Hitachi, Ltd. | Fin-and-tube type heat exchanger |
| JPH043893A (en) * | 1990-04-19 | 1992-01-08 | Rinnai Corp | Heat exchanger |
| JPH06234031A (en) * | 1993-02-10 | 1994-08-23 | Kobe Steel Ltd | Production of finned coil system heat exchanger |
| JPH08271168A (en) * | 1995-03-30 | 1996-10-18 | Noritz Corp | Manufacturing method of heat exchanger |
| CN105939797A (en) * | 2014-01-29 | 2016-09-14 | 三樱工业株式会社 | Method for manufacturing heat exchanger and diameter expanding jig |
| JP2015150566A (en) * | 2014-02-10 | 2015-08-24 | 三菱アルミニウム株式会社 | Tube expansion plug |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7154747B2 (en) | 2022-10-18 |
| JP2018091605A (en) | 2018-06-14 |
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