CN208059662U - Finned heat exchanger and air conditioner - Google Patents
Finned heat exchanger and air conditioner Download PDFInfo
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- CN208059662U CN208059662U CN201820431855.3U CN201820431855U CN208059662U CN 208059662 U CN208059662 U CN 208059662U CN 201820431855 U CN201820431855 U CN 201820431855U CN 208059662 U CN208059662 U CN 208059662U
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- heat exchanger
- connecting hole
- fin
- exchanger tube
- finned heat
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Abstract
A kind of finned heat exchanger of the utility model offer and air conditioner, finned heat exchanger, including fin and heat exchanger tube；Connecting hole is provided on fin, heat exchanger tube is threaded through in connecting hole, and is fixed on connecting hole by way of expanded joint；A diameter of D of connecting hole, the outer diameter of heat exchanger tube are d, and 0.295mm >=D-d >=0.245mm.Under the premise of the utility model has and can ensure expanded joint effect, personnel easy to operation carry out poling operation, and then improve work efficiency, while the advantages of reduce rejection rate.
Description
Technical field
The utility model is related to family's electro-technical field, more particularly to a kind of finned heat exchanger and air conditioner.
Background technology
Finned heat exchanger is widely used in because it is with higher heat exchange efficiency in air conditioner, and when making is will to exchange heat
Pipe is threaded through in the fin hole on fin, and by way of expanded joint, so that heat exchanger tube is interference fitted with fin hole, and then make heat exchange
Pipe is connected and fixed with fin.Existing finned heat exchanger does not conform to because of the diameter of fin hole with the corresponding numerical value of the diameter of heat exchanger tube
Reason, there are the poling difficulty of operating personnel is big, the shortcomings that causing working efficiency low, and be susceptible to waste product.
Utility model content
The main purpose of the utility model is to provide a kind of finned heat exchanger and air conditioners, can ensure expanded joint effect
Under the premise of fruit, personnel easy to operation carry out poling operation, and then improve work efficiency, while reducing rejection rate.
The utility model provides a kind of finned heat exchanger, including fin and heat exchanger tube；
Connecting hole is provided on the fin, the heat exchanger tube is threaded through in the connecting hole, and by way of expanded joint
It is fixed on the connecting hole；
A diameter of D of the connecting hole, the outer diameter of the heat exchanger tube are d, and 0.295mm >=D-d >=0.245mm.
More preferably, outside diameter d=7mm of the heat exchanger tube.
More preferably, the diameter D=7.27mm of the connecting hole.
More preferably, it is H that the heat exchanger tube, which is located at the part in the connecting hole relative to the interference volume of the connecting hole, and
And 0.28mm >=H >=0.24mm.
More preferably, the heat exchanger tube is the copper pipe that inner wall has teeth portion, and is connected on the connecting hole by the swollen alliteration of expanded joint
(11) in, the part that the heat exchanger tube is located in the connecting hole is made relative to the interference volume of the connecting hole to be H, and H=2
(B+F)+d '-D, wherein B are copper pipe wall thickness；F is height of the teeth portion along copper pipe radial direction；D ' is the swollen head diameter of expanded joint.
More preferably, the fin is made of the aluminium foil of thickness S=0.095mm.
More preferably, the fin is along the strip extended perpendicular to the heat exchange tube axis direction, in the same wing
The quantity of connecting hole described on piece is at least two, and at least two connecting holes are uniformly arranged along the extending direction of the fin
Cloth, the quantity of the heat exchanger tube is equal with the quantity of the heat exchanging holes, and corresponds.
More preferably, the quantity of the fin is N number of, wherein N >=2, and N number of fin is along the axis side of the heat exchanger tube
To uniform arrangement.
More preferably, the fin is in the plane parallel with the axis of the extending direction of the fin and the heat exchanger tube
Projected area A, and N × A=0.14m2, between the axis direction along the heat exchanger tube, the two neighboring fin
Distance is T, and T=1.4mm.
The another aspect of the utility model provides a kind of air conditioner, includes the heat exchanger of any of the above technical characteristic.
The heat exchanger of the offer of the utility model is threaded through in the connecting hole using the heat exchanger tube, and passes through expanded joint
Mode be fixed on the connecting hole, the outer diameter of and a diameter of D of the connecting hole, the heat exchanger tube are d, and
The technical solution of 0.295mm >=D-d >=0.245mm, under the premise of capable of ensureing expanded joint effect, personnel easy to operation carry out poling
Operation, and then improve work efficiency, while reducing rejection rate.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is one example structure schematic diagram of heat exchanger of the utility model；
Fig. 2 is the fin partial schematic diagram in Fig. 1；
Fig. 3 is the heat exchanger tube cross-sectional view in Fig. 1；
Fig. 4 is heat exchanger in Fig. 1 in outside diameter d=7mm of heat exchanger tube, diameter and poling resistance, the poling of connecting hole
The correspondence schematic diagram of efficiency and scrappage；
Fig. 5 is the diameter schematic diagram corresponding with the distance between two neighboring film-making of connecting hole.
In figure：1, fin；11, connecting hole；2, heat exchanger；21, teeth portion；D, the diameter of connecting hole；D, the outer diameter of heat exchanger tube；
B, the wall thickness of copper pipe；F, height of the teeth portion along copper pipe radial direction；S, aluminum foil thickness；T, the distance between adjacent fins.
Specific implementation mode
It is specific below in conjunction with the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
Only it is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
The every other embodiment that those of ordinary skill is obtained without making creative work, belongs to the utility model
The range of protection.
As shown in Figure 1, 2, 3, a kind of finned heat exchanger, including fin 1 and heat exchanger tube 2 are provided with connecting hole on fin 1
11, heat exchanger tube 2 is threaded through in connecting hole 11, and is fixed on connecting hole 11 by way of expanded joint, connecting hole 11 it is a diameter of
D, the outer diameter of heat exchanger tube 2 are d, and 0.295mm >=D-d >=0.245mm.Using such technical solution, connecting hole can be made
There are rational gaps between 11 and heat exchanger tube 2, and under the premise of capable of ensureing expanded joint effect, personnel easy to operation carry out poling work
Industry, and then improve work efficiency, while reducing rejection rate.Wherein, the aluminium foil of thickness S=0.095mm may be used in fin 1
It makes, but simultaneously only without being limited thereto.
As a kind of embodiment, outside diameter d=7mm of heat exchanger tube 2.When heat exchanger tube 2 is using the tubing of outside diameter d=7mm
When, as shown in figure 4, the increase of the diameter with connecting hole 11, poling resistance is gradually reduced, and poling efficiency is gradually increased, simultaneously
Scrappage continuously decreases.To obtain best 11 diameter of connecting hole, design different connecting holes bore dia (7.20mm, 7.25mm,
7.27mm, 7.30mm) each 20 of fin-tube type heat exchanger, test poling improvement (poling efficiency, copper pipe scrappage, poling
Resistance), and compared, finally drawn a conclusion, when the diameter D=7.27mm of connecting hole 11, various effectiveness indicators reach most
It is excellent.
In actual operation, it is H that heat exchanger tube 2, which is located at the part in connecting hole 11 relative to the interference volume of connecting hole 11, and
And 0.28mm >=H >=0.24mm.It can not only ensure expanded joint quality in this way, while can also make, between heat exchanger tube 2 and fin 1
Heat transfer effect reach best, it should be noted that when the outside diameter d of heat exchanger tube be not equal to 7mm when, for example, 7.94mm or
When 9.52mm, interference volume H is within the scope of 0.1mm~0.195mm.
Specifically, heat exchanger tube 2 is the copper pipe that inner wall has teeth portion 21, and is connected in connecting hole 11 by the swollen alliteration of expanded joint,
The part that heat exchanger tube 2 is located in connecting hole 11 is set relative to the interference volume of connecting hole 11 to be H, and H=2 (B+F)+d '-D,
Middle B is copper pipe wall thickness；F is height of the teeth portion 21 along copper pipe radial direction；D ' is the swollen head diameter of expanded joint, and it is swollen to be not shown in figure expanded joint
Head.The deformation of teeth portion 21 can be avoided excessive in this way, while ensure heat transfer effect.
As a kind of embodiment, as shown in Figure 1, fin 1 is along the strip extended perpendicular to 2 axis direction of heat exchanger tube
Shape, the quantity of connecting hole 11 is at least two on same fin 1, and at least two connecting holes 11 are equal along the extending direction of fin 1
Even arrangement, the quantity of heat exchanger tube 2 is equal with the quantity of heat exchanging holes, and corresponds.Further, the quantity of fin 1 is N number of,
Wherein N >=2, N number of fin 1 are uniformly arranged in the axis direction along heat exchanger tube 2.
Preferably, perspective plane of the fin 1 in the plane parallel with the axis of the extending direction of fin 1 and heat exchanger tube 2
Product A (not shown), and N × A=0.14m2.Since a pitch of fins for fin 1 influences windage, it is to verify 11 diameter of connecting hole
No 1 pitch of fins of fin after influencing tube expansion, a pitch of fins for the fin 1 at each position of heat exchanging device measure analysis, it was therefore concluded that such as Fig. 5
Shown, in the axis direction along heat exchanger tube 2, the distance between two adjacent fins 1 are T, and T=1.4mm.
To realize that goal of the invention, the another aspect of the utility model provide a kind of air conditioner, including any of the above embodiment institute
The finned heat exchanger of description.
Above example makes the utility model under the premise of capable of ensureing expanded joint effect, and personnel easy to operation wear
Pipe operation, and then improve work efficiency, while the advantages of reduce rejection rate.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the right of the utility model.
Claims (10)
1. a kind of finned heat exchanger, it is characterised in that：
Including fin (1) and heat exchanger tube (2)；
Connecting hole (11) is provided on the fin (1), the heat exchanger tube (2) is threaded through in the connecting hole (11), and passes through
The mode of expanded joint is fixed on the connecting hole (11)；
A diameter of D of the connecting hole (11), the outer diameter of the heat exchanger tube (2) are d, and 0.295mm >=D-d >=0.245mm.
2. finned heat exchanger according to claim 1, it is characterised in that：
Outside diameter d=7mm of the heat exchanger tube (2).
3. finned heat exchanger according to claim 2, it is characterised in that：
The diameter D=7.27mm of the connecting hole (11).
4. finned heat exchanger according to claim 3, it is characterised in that：
It is H that the heat exchanger tube (2), which is located at the part in the connecting hole (11) relative to the interference volume of the connecting hole (11), and
And 0.28mm >=H >=0.24mm.
5. finned heat exchanger according to claim 3, it is characterised in that：
The heat exchanger tube (2) is the copper pipe that inner wall has teeth portion (21), and is connected on the connecting hole (11) by the swollen alliteration of expanded joint
It is interior, make the part that the heat exchanger tube (2) is located in the connecting hole (11) relative to the connecting hole (11) interference volume be H,
And H=2 (B+F)+d '-D, wherein B are copper pipe wall thickness；F is height of the teeth portion (21) along copper pipe radial direction；D ' is that expanded joint is swollen
Head diameter.
6. finned heat exchanger according to claim 1, it is characterised in that：
The fin (1) is made of the aluminium foil of thickness S=0.095mm.
7. according to the finned heat exchanger described in claim 1 to 6 any one, it is characterised in that：
The fin (1) is along the strip extended perpendicular to the heat exchanger tube (2) axis direction, in the same fin (1)
The quantity of the upper connecting hole (11) is at least two, extension side of at least two connecting holes (11) along the fin (1)
To uniform arrangement, the quantity of the heat exchanger tube (2) is equal with the quantity of the heat exchanging holes, and corresponds.
8. finned heat exchanger according to claim 7, it is characterised in that：
The quantity of the fin (1) is N number of, wherein N >=2, and N number of fin (1) is in the axis direction along the heat exchanger tube (2)
Uniformly arrangement.
9. finned heat exchanger according to claim 8, it is characterised in that：
The fin (1) is in the plane parallel with the axis of the extending direction of the fin (1) and the heat exchanger tube (2)
Projected area A, and N × A=0.14m2, in the axis direction along the heat exchanger tube (2), the two neighboring fin (1) it
Between distance be T, and T=1.4mm.
10. a kind of air conditioner, it is characterised in that：
Including the finned heat exchanger described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820431855.3U CN208059662U (en) | 2018-03-28 | 2018-03-28 | Finned heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820431855.3U CN208059662U (en) | 2018-03-28 | 2018-03-28 | Finned heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208059662U true CN208059662U (en) | 2018-11-06 |
Family
ID=63987467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820431855.3U Active CN208059662U (en) | 2018-03-28 | 2018-03-28 | Finned heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208059662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344322A (en) * | 2018-03-28 | 2018-07-31 | 长沙格力暖通制冷设备有限公司 | Finned heat exchanger and air conditioner |
-
2018
- 2018-03-28 CN CN201820431855.3U patent/CN208059662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344322A (en) * | 2018-03-28 | 2018-07-31 | 长沙格力暖通制冷设备有限公司 | Finned heat exchanger and air conditioner |
| CN108344322B (en) * | 2018-03-28 | 2023-12-15 | 长沙格力暖通制冷设备有限公司 | Fin heat exchanger and air conditioner |
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