CN215373051U - Refrigerant pipeline and air conditioner - Google Patents
Refrigerant pipeline and air conditioner Download PDFInfo
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- CN215373051U CN215373051U CN202120942471.XU CN202120942471U CN215373051U CN 215373051 U CN215373051 U CN 215373051U CN 202120942471 U CN202120942471 U CN 202120942471U CN 215373051 U CN215373051 U CN 215373051U
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- copper ring
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- steel pipe
- refrigerant line
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Abstract
The utility model provides a refrigerant pipeline and an air conditioner. The refrigerant pipeline of the utility model replaces the common copper pipe with the steel pipe, thereby improving the structural strength of the refrigerant pipeline, reducing the material cost and reducing the heat loss of the refrigerant.
Description
Technical Field
The utility model relates to the technical field of air conditioner manufacturing, in particular to a refrigerant pipeline and an air conditioner with the refrigerant pipeline.
Background
At present, most of refrigerant pipelines of air-conditioning products adopt copper pipes. The copper pipe welding widely adopts phosphorus copper solder, the phosphorus copper solder has good fluidity, low price and excellent process performance, the solder is used for air conditioner assembly, after-sale installation and maintenance, and the connection between the copper pipes is completed by adopting a manual flame welding process. Compared with a copper pipe, the steel pipe is low in cost, high in pressure resistance, low in heat conductivity and high in heat preservation coefficient compared with a copper pipeline, and the energy efficiency of the air conditioning system can be improved by applying the steel pipe to the air conditioning system. However, the existing flame soldering solder is not adhered to a steel pipeline, and the flame soldering between steel materials only can use silver-containing solder, so that the cost of the solder is too high.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the utility model provides the refrigerant pipeline with low cost and high strength.
A refrigerant circuit according to an embodiment of the present invention includes: a first steel pipe; a second steel pipe; the first copper annular part is connected with the first steel pipe; and a second copper ring connected to the second steel pipe, the first copper ring being connected to the second copper ring to connect the first steel pipe to the second steel pipe.
According to the refrigerant pipeline provided by the embodiment of the utility model, the steel pipe is used for replacing a common copper pipe, so that the structural strength of the refrigerant pipeline is improved, the material cost is reduced, and the heat loss of the refrigerant is reduced. In addition, the first steel pipe and the second steel pipe are connected by the first copper annular part and the second copper annular part, so that direct connection between steel materials is avoided, silver-containing brazing filler metal is avoided being used in the manufacturing process of the refrigerant pipeline, and the manufacturing cost is reduced.
Therefore, the refrigerant pipeline provided by the embodiment of the utility model has the advantages of low cost and high structural strength.
In addition, the refrigerant circuit according to the present invention has the following additional technical features:
in some embodiments, the first copper ring has a first end and a second end, the first end being connected to the first steel tube, the second copper ring has a third end and a fourth end, the third end being connected to the second steel tube, the fourth end being connected to the second end.
In some embodiments, the first copper ring has a first end and a second end, the first end is connected to the first steel tube, the second copper ring is entirely disposed over the second steel tube, and the second end is disposed over at least a portion of the second copper ring.
In some embodiments, the first steel tube is sleeved over the first end.
In some embodiments, the second end portion is nested over a portion of the second copper ring, a remainder of the second copper ring protruding from the second end portion, the remainder of the second copper ring having a dimension in a length direction of greater than or equal to 5mm and less than or equal to 30 mm.
In some embodiments, the second end is a flared structure, the second end including a transition section and a flared section, the flared section being sleeved over the second copper ring.
In some embodiments, the size of the transition section in the length direction of the first copper ring is 4mm or greater.
In some embodiments, the first and second copper annular members are welded together with a phosphor copper braze.
In some embodiments, the first copper ring has a thickness t1, 0.5mm ≦ t1 ≦ 2.0mm, and the second copper ring has a thickness t2, 0.3mm ≦ t2 ≦ 1.2 mm.
According to another embodiment of the present invention, an air conditioner is provided, which includes the refrigerant circuit set forth in any one of the above embodiments of the present invention.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is an external schematic view of a refrigerant circuit according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of a refrigerant line according to an embodiment of the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Reference numerals:
a first steel pipe 100; an end 110 of the first steel tube; a second steel pipe 200; end 210 of the second steel tube; a first copper ring 300; a first end portion 310; a second end portion 320; a transition section 321; a flared section 322; a second copper ring 400; a central axis 500.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
The refrigerant circuit of an embodiment of the present invention is described below with respect to fig. 1-3.
The refrigerant line includes a first steel tube 100, a second steel tube 200, a first copper ring 300, and a second copper ring 400. The first copper ring 300 is connected to the end 110 of the first steel pipe, the second copper ring 400 is connected to the end 210 of the second steel pipe, and the first copper ring 300 is connected to the second copper ring 400, so that the first steel pipe 100 is connected to the second steel pipe 200.
It is understood that the refrigerant circuit provided by the embodiment of the present invention has at least three connection positions, which are: the junction of the first copper annulus 300 with the end 110 of the first steel pipe, the junction of the second copper annulus 400 with the end 210 of the second steel pipe, and the junction of the first copper annulus 300 with the second copper annulus 400. The connection between the first copper ring 300 and the end 110 of the first steel pipe and the connection between the second copper ring 400 and the end 210 of the second steel pipe are both connections between copper materials, and the connection between the first copper ring 300 and the second copper ring 400 is a connection between copper materials. Therefore, the refrigerant pipeline provided by the embodiment of the utility model has no direct connection between steel materials.
According to the refrigerant pipeline provided by the embodiment of the utility model, the steel pipe is used for replacing a common copper pipe, so that the structural strength of the refrigerant pipeline is improved, the material cost is reduced, and the heat loss of the refrigerant is reduced. In addition, the first steel pipe and the second steel pipe are connected by the first copper annular part and the second copper annular part, so that direct connection between steel materials is avoided, silver-containing brazing filler metal is avoided being used in the manufacturing process of the refrigerant pipeline, and the manufacturing cost is reduced.
Therefore, the refrigerant pipeline provided by the embodiment of the utility model has the advantages of low cost and high structural strength.
Another embodiment of the utility model also provides an air conditioner with the refrigerant pipeline provided by the above embodiment. In manufacturing the air conditioner having the refrigerant pipe according to the embodiment of the present invention, the first steel pipe 100 and the first copper ring 300 and the second steel pipe 200 and the second copper ring 400 may be welded in advance, that is, the first copper ring 300 may be welded to the end 110 of the first steel pipe 100, and the second copper ring 400 may be welded to the end 210 of the second steel pipe 200. For example, the welding between the first steel pipe 100 and the first copper ring 300 and between the second steel pipe 200 and the second copper ring 400 is completed using a furnace welding method.
The welding between the first copper ring 300 and the second copper ring 400 may be performed by a manual flame welding method in an air conditioner assembly line, and the air conditioner after-market repair may also be performed by a manual flame welding apparatus to disconnect the first copper ring 300 from the second copper ring 400. By applying the refrigerant pipeline provided by the embodiment of the utility model to the air conditioner, the welding equipment in an air conditioner assembly workshop does not need to be changed, and the manual flame welding equipment is relatively light and easy to carry to an air conditioner after-sale installation and maintenance site, such as a high-rise building. Therefore, the refrigerant pipeline provided by the embodiment of the utility model is adopted in the air conditioner, so that the manual assembly and after-sale maintenance of the final assembly workshop are facilitated.
In some embodiments, the radial directions of the end 110 of the first steel pipe 100, the end 210 of the second steel pipe 200, the first copper annulus 300, and the second copper annulus 400 are the same as each other. The axial directions of the end 110 of the first steel pipe 100, the end 210 of the second steel pipe 200, the first copper ring 300 and the second copper ring 400 are also identical to each other.
For convenience of description, the technical solution of the present invention will be described below by taking as an example that the central axes 500 of the end 110 of the first steel pipe 100, the end 210 of the second steel pipe 200, the first copper ring 300 and the second copper ring 400 are coincident and all extend in the left-right direction, as shown in fig. 2, the end 110 of the first steel pipe 100 is the end on the right in fig. 2, and the end 210 of the second steel pipe 200 is the end on the left in fig. 2. It is to be understood that the terms "left" and "right" indicate orientations and positional relationships based on the orientation and positional relationship shown in fig. 2 for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Specific embodiments of the present invention are described in detail below with reference to fig. 1-3.
The refrigerant line includes a first steel tube 100, a second steel tube 200, a first copper ring 300, and a second copper ring 400. The first copper ring 300 is a copper tube and the second copper ring 400 is a copper sleeve. The first copper ring 300 has a first end 310 and a second end 320, the first end 310 of the first copper ring 300 being connected to the end 110 of the first steel pipe 100. The second copper ring 400 is fully fitted over the end 210 of the second steel pipe 200 and the second end 320 of the first copper ring 300 is fitted over at least a portion of the second copper ring 400. The second end 320 of the first copper ring 300 is fitted over at least a portion of the second copper ring 400 by: the first copper ring 300 may be completely fitted over the second copper ring 400, or may be fitted over a portion of the second copper ring 400.
By way of example, as shown in fig. 3, the first end 310 of the first copper ring 300 is the left end in fig. 3. The second end 320 of the first copper ring 300 is the end to the right in fig. 3. It should be understood that the orientation of fig. 3 is merely exemplary, and the application is not limited to the left-right orientation of the first end portion 310 and the second end portion 320, as the orientation is described below. The left end face of the second copper ring 400 is flush with the left end face of the second steel pipe 200 (the end of the end 210 of the second steel pipe 200). The second end 320 of the first copper ring 300 is fitted over a portion of the second copper ring 400 from the left side of the second copper ring 400 and the second steel pipe 200, and the remaining portion of the second copper ring 400 extends rightward from the second end 320 of the first copper ring 300. The second end 320 of the first copper ring 300 is sleeved on a part of the second copper ring 400, which is beneficial to avoiding the problem that when the first copper ring 300 and the second copper ring 400 are welded together by flame welding, the second steel pipe 200 is excessively heated by flame to cause the strength to be reduced.
Alternatively, as shown in fig. 3, the remaining portion of the second copper ring 400 protruding from the second end 320 of the first copper ring 300 has a length L1 in the left-right direction, and L1 is 5mm or more and 30mm or less.
As shown in fig. 3, the end 110 of the first steel pipe 100 is fitted over the first end 310 of the first copper ring 300. The first end 310 of the first copper ring 300 is a straight pipe section. The end 110 of the first steel pipe 100 is of a flared structure. It is understood that in other embodiments, the end 110 of the first steel pipe 100 may be a reduced diameter structure and the first end 310 of the first copper ring 300 may be sleeved on the end 110 of the first steel pipe 100.
Further, as shown in fig. 3, the end 210 of the second steel pipe 200 is a straight pipe section, i.e. the diameter of the end 210 of the second steel pipe 200 is kept constant, and the second end 320 of the first copper ring 300 is a flaring structure. The second end 320 of the first copper ring 300 includes a transition 321 and a flared section 322. Flared section 322 fits over second copper annulus 400. The transition 321 serves to connect the flared section 322 with the rest of the first copper annulus 300. The left end of the transition section 321 is connected to the remainder of the first copper ring 300 and the right end is connected to the flared section 322, the diameter of the flared section 322 being greater than the diameter of the remainder of the first copper ring 300, so that the diameter of the transition section 321 increases from left to right. Optionally, the length of the transition 321 in the left-right direction is L2, and L2 is 4mm or more, to reduce the effect of stress concentration on the structural strength of the first copper ring 300.
The second end 320 of the first copper annular member 300 is provided with a flaring structure, so that the second copper annular member can be combined with the end 210 of the second steel pipe 200, the end 210 of the second steel pipe 200 can be prevented from being constricted, and the problem of increased flow resistance in a refrigerant pipeline caused by the constriction is avoided.
The first copper annular member 300 and the second copper annular member 400 in this embodiment can be welded together by using a phosphor copper brazing filler metal. The phosphorus-copper solder has good fluidity, low price and excellent processing performance. And the connection between the first copper ring 300 and the second copper ring 400 may be accomplished using a manual flame welding process. The first copper ring 300 and the second copper ring 400 may be disconnected by a manual flame welding device for after-sales repair of the air conditioner. It can be seen that the refrigerant lines provided by the present embodiment are used in air conditioners to facilitate manual assembly and after-market maintenance in assembly plants.
In this embodiment, the first copper ring 300 is a copper pipe, the second copper ring 400 is a copper sleeve, and the second copper ring 400 is completely sleeved on the end 210 of the second steel pipe 200. When a bending load is applied to the interface between the first steel pipe 100 and the second steel pipe 200 in the refrigerant pipeline, the first copper ring 300 needs to bear the bending load alone because the second copper ring 400 is completely sleeved on the end 210 of the second steel pipe 200. Therefore, it is preferable that the first copper ring 300 requires a greater thickness to secure the structural strength of the refrigerant line.
Optionally, the thickness of the first copper ring 300 is t1, t1 is 0.5 mm-2.0 mm, and the thickness of the second copper ring 400 is t2, t2 is 0.3 mm-1.2 mm.
Alternatively, the first and second steel pipes 100 and 200 are both stainless steel pipes, and the first and second copper rings 300 and 400 are both red copper rings.
In other embodiments, the second copper ring 400 may have a third end (not shown) and a fourth end (not shown), the third end of the second copper ring 400 being connected to the end 210 of the second steel pipe 200, and the fourth end of the second copper ring 400 being connected to the second end 320 of the first copper ring 300. That is, the first copper ring 300 and the second copper ring 400 may both be copper tubes.
In these embodiments, the third end of second copper ring 400 may be fitted over end 210 of second steel pipe 200, or end 210 of second steel pipe 200 may be fitted over the third end of second copper ring 400. The fourth end of the second copper ring 400 may be fitted over the second end 320 of the first copper ring 300 to connect the first copper ring 300 to the second copper ring 400, or the second end 320 of the first copper ring 300 may be fitted over the fourth end of the second copper ring 400 to connect the first copper ring 300 to the second copper ring 400.
It should be understood that the alternatives to the dimensions provided in the embodiments of the present application are provided by way of example only and the embodiments of the present application are not limited to the dimensional ranges exemplified above. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A refrigerant line, comprising:
a first steel pipe;
a second steel pipe;
the first copper annular part is connected with the first steel pipe; and
a second copper ring connected to the second steel pipe, the first copper ring being connected to the second copper ring to connect the first steel pipe to the second steel pipe.
2. The refrigerant line of claim 1, wherein the first copper ring has a first end and a second end, the first end being connected to the first steel tube, the second copper ring has a third end and a fourth end, the third end being connected to the second steel tube, the fourth end being connected to the second end.
3. The refrigerant line of claim 1, wherein said first copper ring has a first end connected to said first steel tube and a second end, said second copper ring fully received on said second steel tube, said second end received on at least a portion of said second copper ring.
4. The refrigerant line as set forth in claim 3, wherein said first steel tube is sleeved on said first end portion.
5. The refrigerant line of claim 3, wherein said second end is nested over a portion of said second copper ring member, with the remainder of said second copper ring member extending from said second end.
6. The refrigerant line of claim 3, wherein said second end is a flared structure, said second end including a tapered section and a flared section, said flared section fitting over said second copper ring.
7. The refrigerant line of claim 6, wherein the transition has a dimension in the length direction of the first copper ring of 4mm or greater.
8. The refrigerant line of claim 1, wherein the first and second copper annular members are welded together with a phosphor copper braze.
9. The refrigerant line as set forth in claim 3, wherein said first copper ring has a thickness t1, 0.5mm ≦ t1 ≦ 2.0mm, and said second copper ring has a thickness t2, 0.3mm ≦ t2 ≦ 1.2 mm.
10. An air conditioner characterized by comprising the refrigerant circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120942471.XU CN215373051U (en) | 2021-04-30 | 2021-04-30 | Refrigerant pipeline and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120942471.XU CN215373051U (en) | 2021-04-30 | 2021-04-30 | Refrigerant pipeline and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN215373051U true CN215373051U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120942471.XU Active CN215373051U (en) | 2021-04-30 | 2021-04-30 | Refrigerant pipeline and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143087A1 (en) * | 2022-01-27 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | End cover machining method, end cover, and pipeline assembly |
-
2021
- 2021-04-30 CN CN202120942471.XU patent/CN215373051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143087A1 (en) * | 2022-01-27 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | End cover machining method, end cover, and pipeline assembly |
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