CN216618853U - Pipe sleeve, pipeline assembly and air conditioner with pipeline assembly - Google Patents
Pipe sleeve, pipeline assembly and air conditioner with pipeline assembly Download PDFInfo
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- CN216618853U CN216618853U CN202122471567.5U CN202122471567U CN216618853U CN 216618853 U CN216618853 U CN 216618853U CN 202122471567 U CN202122471567 U CN 202122471567U CN 216618853 U CN216618853 U CN 216618853U
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Abstract
The embodiment of the utility model provides a pipe sleeve, a pipeline assembly and an air conditioner with the pipeline assembly. The pipeline subassembly includes: a first tube; a second tube; and the pipe sleeve, the pipe sleeve is including the first section that connects gradually, interlude and second section, an tip of first pipe stretches into in the first section and links to each other with first section welding, the second pipe stretches into the sub-pipe and stretches into the second sub-pipe that is connected of sub-union coupling with the second including the second that is located the tip of second pipe, the second stretches into the inside that the sub-pipe stretched into the interlude, the second is connected the internal surface welding of sub-pipe and second section and is linked to each other, the second stretches into the internal surface interval setting of sub-pipe and interlude, the internal surface of interlude and the second surface that stretches into the sub-pipe prescribe a limit to the weld beading groove, the opening in weld beading groove is towards first section. Therefore, the pipeline assembly has the advantages of less welding beading (even no welding beading) on the second pipe and the like, so that the running noise of the air conditioner comprising the pipeline assembly can be effectively reduced, and the welding beading is prevented from damaging other parts of the air conditioner.
Description
Technical Field
The utility model relates to the technical field of air conditioner pipeline assemblies, in particular to a pipe sleeve, a pipeline assembly and an air conditioner with the pipeline assembly.
Background
At present, a pipeline assembly is needed to transmit a refrigerant in an air conditioning system, a copper pipe is conventionally used in the industry, but the price of a copper material is higher, compared with the copper pipe, the cost of the steel pipe is low, the pressure resistance is high, the heat conductivity is low, the heat preservation coefficient is higher than that of the 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, copper has a thermal conductivity nearly 21 times that of stainless steel, and stainless steel is likely to be cracked due to uneven heating during flame welding or to form thermal stress, which reduces the strength of the stainless steel. In order to ensure the feasibility and convenience of on-site welding, a copper sleeve is generally added at the joint of the steel pipe, the copper sleeve and the steel pipe are brazed by adopting a tunnel furnace, the copper pipe and the copper sleeve are brazed manually, when the copper pipe and the copper sleeve are brazed manually, surplus solder can occur, the surplus solder can flow to the upper end surface of the steel pipe and form a welding beading (the difference between the melting points of the steel pipe and the solder is too large, the steel pipe does not stick to the solder). The weld beading is hung on the steel pipe and falls into the pipeline after a long time under the repeated flushing of the refrigerant, thereby causing noise or damage to other parts of the air conditioner.
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. To this end, embodiments of the present invention propose a pipe sleeve, a pipe assembly and an air conditioner having the pipe assembly.
The pipeline assembly of the embodiment of the utility model comprises:
a first tube;
a second tube; and
the pipe sleeve comprises a first section, a middle section and a second section which are connected in sequence, one end of the first pipe extends into the first section and is connected with the first section in a welding mode, the second pipe comprises a second extending sub pipe located at one end of the second pipe and a second connecting sub pipe connected with the second extending sub pipe, the second extending sub pipe extends into the middle section, the second connecting sub pipe is connected with the inner surface of the second section in a welding mode, the second extending sub pipe and the inner surface of the middle section are arranged at intervals, a welding beading groove is defined between the inner surface of the middle section and the outer surface of the second extending sub pipe, and an opening of the welding beading groove faces the first section.
Therefore, the pipeline assembly provided by the embodiment of the utility model has the advantages of less welding beading (even no welding beading) on the second pipe and the like, so that the operation noise of the air conditioner comprising the pipeline assembly can be effectively reduced, and the welding beading is prevented from damaging other parts of the air conditioner.
In some embodiments, the second sub-tube extends into the first tube.
In some embodiments, the melting point of the pipe sleeve and the melting point of the first pipe are both lower than the melting point of the second pipe, wherein the difference between the melting point of the second pipe and the melting point of the pipe sleeve is greater than or equal to a preset value, and the difference between the melting point of the second pipe and the melting point of the first pipe is greater than or equal to the preset value.
In some embodiments, the tube housing and the first tube are copper tubes and the second tube is a steel tube.
In some embodiments, the inner diameter of one portion of the intermediate section is greater than or less than the inner diameter of another portion of the intermediate section. In some embodiments, the inner diameter of the intermediate section increases and then decreases along its length;
or the inner diameter of the middle section is firstly reduced and then increased along the length direction of the middle section;
alternatively, the middle section is a bellows.
In some embodiments, the middle section includes a first connection portion, a second connection portion, and a third connection portion, the first section, the first connection portion, the second connection portion, the third connection portion, and the second section are connected in sequence, wherein an inner diameter of the first connection portion and an inner diameter of the third connection portion decrease toward a direction away from the second connection portion.
In some embodiments, an inner surface of each of the first connection portion and the third connection portion is a spherical surface, and an inner surface of the second connection portion is a cylindrical surface.
The utility model also proposes a pipe sleeve comprising: the inner diameter of one part of the middle section is larger than or smaller than that of the other part of the middle section.
In some embodiments, the inner diameter of the intermediate section increases and then decreases along its length;
or the inner diameter of the middle section is firstly reduced and then increased along the length direction of the middle section;
alternatively, the middle section is a bellows.
In some embodiments, an inner surface of the middle section is provided with a cup weld groove, the cup weld groove opening toward the first section;
or the pipe sleeve further comprises a stop ring plate, the stop ring plate is located in the middle section, a pipe sleeve weld beading groove is defined between the stop ring plate and the middle section, and an opening of the pipe sleeve weld beading groove faces the first section.
In some embodiments, the stop ring plate is connected to an end of the intermediate segment adjacent the second segment.
In some embodiments, the middle section includes a first connection portion, a second connection portion, and a third connection portion, the first section, the first connection portion, the second connection portion, the third connection portion, and the second section are connected in sequence, wherein an inner diameter of the first connection portion and an inner diameter of the third connection portion decrease toward a direction away from the second connection portion.
In some embodiments, an inner surface of each of the first connection portion and the third connection portion is a spherical surface, and an inner surface of the second connection portion is a cylindrical surface.
The utility model further provides an air conditioner which comprises the pipeline assembly.
Drawings
FIG. 1 is a schematic view of a manifold assembly according to an embodiment of the present invention.
FIG. 2 is a schematic view of a manifold assembly according to an embodiment of the present invention.
Fig. 3 is a schematic view of a pipe sleeve according to an embodiment of the present invention.
FIG. 4 is a schematic view of a manifold assembly according to an embodiment of the present invention.
FIG. 5 is a schematic view of a manifold assembly according to an embodiment of the present invention.
FIG. 6 is a schematic view of a manifold assembly according to an embodiment of the present invention.
Reference numerals:
a manifold assembly 100;
a first tube 1, a lower end portion 11 of the first tube 1;
a second tube 2, an end 201 of the second tube 2, a second access sub-tube 21, a second connection sub-tube 22;
the pipe sleeve comprises a pipe sleeve 3, a first section 31, an intermediate section 32, a first connecting part 321, a second connecting part 322, a third connecting part 323, a second section 33, a welding beading groove 34, a stop ring plate 35 and a pipe sleeve welding chute 36.
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.
A piping component 100 according to an embodiment of the present invention will be described with reference to the drawings. As shown in fig. 1 to 6, a piping assembly 100 according to an embodiment of the present invention includes a first pipe 1, a second pipe 2, and a pipe sleeve 3 according to an embodiment of the present invention.
The socket 3 according to an embodiment of the present invention includes a first section 31, an intermediate section 32, and a second section 33 connected in this order. One end of the first tube 1 extends into the first section 31 and is welded to the first section 31.
The second pipe 2 comprises a second extending sub pipe 21 and a second connecting sub pipe 22, the second extending sub pipe 21 is located at one end portion 201 of the second pipe 2, the second connecting sub pipe 22 is connected with the second extending sub pipe 21, the second extending sub pipe 21 extends into the middle section 31, the second connecting sub pipe 21 is connected with the inner surface of the second section 33 in a welding mode, the second extending sub pipe 21 and the inner surface of the middle section 32 are arranged at intervals, a welding beading groove 34 is defined by the inner surface of the middle section 32 and the outer surface of the second extending sub pipe 21, and the opening of the welding beading groove 34 faces the first section 31.
In the related art, when the first pipe 1 and the first segment 31 are welded, the surplus solder enters the pipe sleeve 3 from between the first pipe 1 and the pipe sleeve 3 and flows onto the end surface of the second pipe 2, and the surplus solder on the end surface of the second pipe 2 cools to form a flash. If the properties (mechanical properties, corrosion resistance, high/low temperature properties) and chemical compositions of the surplus solder are not matched and the melting point of the surplus solder is greatly different from those of the second pipe 2, the surplus solder is difficult to adhere to the second pipe 2, so that the welding beading falls off, the welding beading makes noise and damages gas parts. For example, the temperature of the surplus solder is much lower than the melting point of the second tube 2 so that the surplus solder is difficult to adhere to the second tube 2.
The pipe assembly 100 according to an embodiment of the present invention is configured such that the second penetration sub-pipe 21 penetrates into the interior of the intermediate section 31, and the inner surface of the intermediate section 32 and the outer surface of the second penetration sub-pipe 21 define a flash groove 34 that opens toward the first section 31. Therefore, when the first pipe 1 and the first section 31 are welded, the surplus solder enters the pipe sleeve 3 from the space between the first pipe 1 and the pipe sleeve 3 and then flows into the flash groove 34, and further the surplus solder is difficult to flow into the end surface of the second pipe 2 (the second extending sub-pipe 21), so that flash on the end surface of the second pipe 2 (the second extending sub-pipe 21) is effectively reduced, and even no flash is formed on the end surface of the second pipe 2. Therefore, noise caused by welding beading falling off or damage to other parts can be reduced.
Therefore, the pipe assembly 100 according to the embodiment of the present invention has the advantages of less welding beading (even no welding beading) on the second pipe 2, and the like, so that the operation noise of the air conditioner including the pipe assembly 100 can be effectively reduced, and the welding beading can be prevented from damaging other parts of the air conditioner.
As shown in fig. 1 to 3, a piping assembly 100 according to an embodiment of the present invention includes a first pipe 1, a second pipe 2, and a pipe sleeve 3 according to an embodiment of the present invention. The socket 3 according to an embodiment of the present invention includes a first section 31, an intermediate section 32, and a second section 33 connected in this order.
One end of the first pipe 1 extends into the first section 31 and is connected with the first section 31 in a welding mode, the second pipe 2 comprises a second extending sub-pipe 21 and a second connecting sub-pipe 22, the second extending sub-pipe 21 is located at one end 201 of the second pipe 2, the second connecting sub-pipe 21 is connected with the second extending sub-pipe 21, the second extending sub-pipe 21 extends into the middle section 31, the second connecting sub-pipe 21 is connected with the inner surface of the second section 33 in a welding mode, the second extending sub-pipe 21 and the inner surface of the middle section 32 are arranged at intervals, the inner surface of the middle section 32 and the outer surface of the second extending sub-pipe 21 define a welding beading groove 34, and the opening of the welding beading groove 34 faces the first section 31.
For the sake of easy understanding, the longitudinal directions of the first pipe 1, the second pipe 2, and the sleeve 3 are all described in detail as the up-down direction, which is indicated by the arrow a in fig. 1 to 6. For example, the first pipe 1, the second pipe 2, the first section 31 and the second section 33 are all pipe sections with a constant inner diameter, and the first pipe 1, the pipe sleeve 3 and the second pipe 2 are sequentially connected from top to bottom. The lower end 11 of the first pipe 1 extends into the first section 31 and is connected with the first section 31 in a welding way; one end 201 of the second pipe 2 is the upper end of the second pipe 2, i.e. the second protrusion sub-pipe 21 is located above the second connection sub-pipe 22, and the second connection sub-pipe 22 is welded to the inner surface of the second section 33.
In some embodiments, the melting point of the sleeve 3 and the melting point of the first tube 1 are both lower than the melting point of the second tube 2. The difference between the melting point of the second pipe 2 and the melting point of the pipe sleeve 3 is greater than or equal to a preset value, and the difference between the melting point of the second pipe 2 and the melting point of the first pipe 1 is greater than or equal to a preset value. Specifically, the pipe sleeve 3 and the first pipe 1 are copper pipes, and the second pipe 2 is a steel pipe. The difference between the melting point of the second pipe 2 and the melting point of the pipe sleeve 3 is greater than a predetermined value, the second pipe 2 and the second section 33 are brazed by a tunnel furnace having a high welding temperature, and the pipe sleeve 3 and the first pipe 1 are brazed by hand, so that the first pipe 1 and the second pipe 2 can be connected by the pipe sleeve 3 and the production cost of the pipe assembly 100 according to the embodiment of the present invention can be reduced and the production efficiency of the pipe assembly 100 according to the embodiment of the present invention can be improved. The difference between the melting point of the steel pipe and the melting point of the copper pipe sleeve is larger than a preset value, and the difference between the melting point of the steel pipe and the melting point of the copper pipe is larger than the preset value, so that the temperature of the welding flux is far lower than the melting point of the second pipe 2 when the pipe sleeve 3 and the first pipe 1 are welded, the difference between the temperature of the welding flux and the melting point of the second pipe 2 is large, and surplus welding flux is difficult to adhere to the second pipe 2 when the pipe sleeve 3 and the first pipe 1 are welded.
As shown in fig. 4, in some embodiments, the distance between the first tube 1 and the second tube 2 is less than or equal to a preset value. Specifically, the distance between the second penetration sub-tube 21 and the second tube 2 is less than or equal to a preset value. The distance between the first tube 1 and the second tube 2 is less than or equal to a predetermined value, so that more surplus solder can be bonded and stored in the flash groove 34.
Alternatively, the distance between the first pipe 1 and the second pipe 2 is 0, that is, the one end portion of the first pipe 1 and the one end portion 201 of the second penetration sub-pipe 21 abut against each other, so that surplus solder can enter the flash groove 34 defined between a portion of the second pipe 2 and the intermediate section 32 and be bonded to the intermediate section 32 and the first pipe 1, and the surplus solder is difficult to enter the second pipe 2 to form flash. For example, the lower end 11 of the first pipe 1 and the upper end 201 of the second pipe 2 abut against each other.
As shown in fig. 5 and 6, the second protrusion sub-pipe 21 protrudes into the first pipe 1. Specifically, the flash groove 34 is defined between the second penetration sub-pipe and the intermediate section 32, and the outer diameter of the end portion 201 of the second pipe 2 (second penetration sub-pipe 21) or the outer diameter of the second penetration sub-pipe 21 is equal to or smaller than the inner diameter of the first pipe 1. A part of the one end portion 201 of the second pipe 2 is projected into the first pipe 1, so that surplus solder can enter the flash groove 34 defined between the second projection sub-pipe 21 and the intermediate section 32 and can be bonded to the intermediate section 32 and the first pipe 1, and the surplus solder hardly enters the second pipe 2 to form flash. For example, the upper end 201 of the second tube 2 extends into the lower end 11 of the first tube 1.
As shown in fig. 5, in some embodiments, the one end of the first tube 1 is located within the intermediate section 32, the one end 201 of the second tube 2 is located within the intermediate section 32 and the one end 201 of the second tube 2 extends into the first tube 1. For example, the lower end 11 of the first tube 1 and the end 201 of the second tube 2 are both located within the intermediate section 32, and the upper end 201 of the second tube 2 extends into the lower end 11 of the first tube 1.
As shown in fig. 6, in some embodiments, the one end 201 of the second tube 2 is located within the first section 31 and the one end 201 of the second tube 2 extends into the first tube 1. For example, the upper end 201 of the second tube 2 is located within the first section 31, and the upper end 201 of the second tube 2 extends into the lower end 11 of the first tube 1.
As shown in fig. 2 and 3, the inner diameter of one portion of intermediate section 32 is greater than or less than the inner diameter of another portion of intermediate section 32. The inner diameter of one portion of the intermediate section 32 is greater than or less than the inner diameter of another portion of the intermediate section 32, i.e., the inner diameter of one portion of the intermediate section 32 is not equal to the inner diameter of another portion of the intermediate section 32. The intermediate section 32 is a variable inner diameter tube section. The intermediate section 32 (variable diameter section) increases the flow distance of the surplus solder flowing from one end of the intermediate section 32 (the end adjacent to the first section 31) to the other end of the intermediate section 32 (the end adjacent to the second section 33) as compared to the section having a constant inner diameter, thereby increasing the flow distance of the surplus solder flowing from the first section 31 to the second section 33. Thus, the longer flowing distance of the surplus solder during the flowing of the inner surface of the intermediate section 32 allows more surplus solder to adhere to the intermediate section 32 (the socket 3), thereby reducing the surplus solder flowing to the second pipe 2, so that the beading on the second pipe 2 is effectively reduced, and even the beading on the second pipe 2 can be eliminated. Thereby reducing the noise caused by the falling of the welding beading or the damage to other parts.
Therefore, the pipe sleeve 3 according to the embodiment of the present invention has an advantage that more surplus solder can be adhered.
In some embodiments, the inner diameter of the intermediate section 32 increases and then decreases along its length, thereby increasing the distance that the excess solder flows in the section 32, thereby allowing the intermediate section 32 to bond more excess solder. For example, the projection of the inner surface of the intermediate section 32 onto a cross-section of the intermediate section 32 (on which the axis of the intermediate section 32 lies) is two convex arcs, such that the inner diameter of the intermediate section 32 increases from top to bottom and then decreases.
As shown in fig. 2 and 3, in some embodiments, the intermediate section 32 includes a first connection 321, a second connection 322, and a third connection 323. The first segment 31, the first connection 321, the second connection 322, the third connection 323, and the second segment 33 are connected in this order. For example, the first segment 31, the first connection portion 321, the second connection portion 322, the third connection portion 323 and the second segment 33 are sequentially connected from top to bottom,
the inner diameters of the first and third connection parts 321 and 323 decrease in a direction away from the second connection part 322. That is, the first connection portion 321 and the third connection portion 323 are pipe sections having a variable inner diameter, so that the first connection portion 321 and the third connection portion 323 can bond more surplus solder, so that the intermediate section 32 can bond more surplus solder.
As shown in fig. 2 and 3, in some embodiments, an inner surface of each of the first and third connection parts 321 and 323 is a spherical surface, and an inner surface of the second connection part 322 is a cylindrical surface. That is, the cavity of each of the first and third connection parts 321 and 323 is in a shape of a spherical table. This can further increase the distance that the excess solder flows between the inner surface of the first connection portion 321 and the inner surface of the third connection portion 323. And the surplus solder can flow from the first connecting part 321 to the second connecting part 322 to facilitate the solder to cling to the inner surface of the first connecting part 321, and the solder on the first connecting part 321 is prevented from dripping to the third connecting part 323. The inner surface of the second connection portion 322 is a cylindrical surface (with a constant inner diameter) to facilitate the flow of the surplus solder.
In some embodiments, the inner diameter of the intermediate section 32 decreases and then increases along its length, thereby increasing the distance that the excess solder flows in the section 32, thereby allowing the intermediate section 32 to bond more excess solder. For example, the projections of the inner surface of the intermediate section 32 onto a cross-section of the intermediate section 32 (on which the axis of the intermediate section 32 lies) are two concave arcs, such that the inner diameter of the intermediate section 32 decreases from top to bottom and then increases.
In some embodiments, the intermediate section 32 is a bellows, and the inner diameter of the intermediate section 32 varies in an undulating fashion along its length (increasing, decreasing, increasing, …, decreasing, increasing, decreasing, …, or decreasing, increasing, decreasing, …, increasing, decreasing, increasing, …). Thereby increasing the distance that the excess solder flows in the segment 32 and allowing the intermediate segment 32 to bond more excess solder. For example, the projections of the inner surface of the intermediate section 32 onto the cross section of the intermediate section 32 (on which the axis of the intermediate section 32 lies) are two wavy lines, so that the inner diameter of the intermediate section 32 changes in a wavy line shape.
In some embodiments, the inner surface of the intermediate section 32 is provided with a cup weld groove 36, the cup weld groove 36 opening toward the first section 31. Thus, the socket flash groove 36 can be loaded with the surplus solder flowing from the first section 31 to the intermediate section 32, and the surplus solder is bonded, stored in the socket flash groove 36, and is prevented from falling off and forming flash on the second pipe 2. The inner surface of a portion of the intermediate section 32 adjacent the second section 33 is provided with a socket flash groove 36. For example, the inner surface of the third connecting portion 323 defines the socket flash groove 36.
As shown in fig. 2 and 3, in some embodiments, shroud 3 according to embodiments of the present invention further includes a stop ring plate 35.
A stop ring plate 35 is located within the intermediate section 32, with a socket flash groove 36 defined between the stop ring plate 35 and the intermediate section 32, the socket flash groove opening toward the first section 31.
In some embodiments, stop ring plate 35 is connected to an end of intermediate segment 32 adjacent second segment 33. Specifically, the stopper ring plate 35 is connected to the third connecting portion 323, a socket flash groove 36 is defined between the stopper ring plate 35 and the third connecting portion 323, and the socket flash groove 36 is annular.
The utility model also provides an air conditioner, and the air conditioner according to the embodiment of the utility model comprises the pipeline assembly 100 according to the embodiment of the utility model.
Therefore, the air conditioner according to the embodiment of the present invention has less weld beading of the second pipe 2 on the pipeline assembly 100, and thus can effectively reduce the operation noise of the air conditioner including the pipeline assembly 100, and prevent the weld beading from damaging other parts of the air conditioner.
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 explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; 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 (15)
1. A manifold assembly, comprising:
a first tube;
a second tube; and
the pipe sleeve comprises a first section, a middle section and a second section which are sequentially connected, one end of the first pipe extends into the first section and is connected with the first section in a welding mode, the second pipe comprises a second extending sub-pipe located at one end of the second pipe and a second connecting sub-pipe connected with the second extending sub-pipe, the second extending sub-pipe extends into the middle section, the second connecting sub-pipe is connected with the inner surface of the second section in a welding mode, the second extending sub-pipe and the inner surface of the middle section are arranged at intervals, a welding beading groove is defined between the inner surface of the middle section and the outer surface of the second extending sub-pipe, and an opening of the welding beading groove faces the first section.
2. The manifold assembly of claim 1, wherein the second sub-tube extends into the first tube.
3. The piping component of claim 1, wherein the melting point of the jacket and the melting point of the first pipe are both lower than the melting point of the second pipe, wherein the difference between the melting point of the second pipe and the melting point of the jacket is equal to or greater than a predetermined value, and the difference between the melting point of the second pipe and the melting point of the first pipe is equal to or greater than the predetermined value.
4. A manifold assembly as claimed in claim 1 or 3, wherein the sleeve and the first tube are copper tubes and the second tube is a steel tube.
5. The piping component of claim 1, wherein an inner diameter of a portion of the intermediate section is greater than or less than an inner diameter of another portion of the intermediate section.
6. The manifold assembly of claim 5,
the inner diameter of the middle section is increased and then decreased along the length direction of the middle section;
or the inner diameter of the middle section is firstly reduced and then increased along the length direction of the middle section;
alternatively, the middle section is a bellows.
7. The piping component of any of claims 1, 5, and 6, wherein said intermediate section comprises a first connection, a second connection, and a third connection, said first section, said first connection, said second connection, said third connection, and said second section being connected in series, wherein an inner diameter of said first connection and an inner diameter of said third connection decrease in a direction away from said second connection.
8. The piping component of claim 7, wherein an inner surface of each of the first connection portion and the third connection portion is a spherical surface, and an inner surface of the second connection portion is a cylindrical surface.
9. A pipe sleeve, comprising: the pipe sleeve welding device comprises a first section, a middle section and a second section which are connected in sequence, wherein the inner diameter of one part of the middle section is larger than or smaller than that of the other part of the middle section, a pipe sleeve welding beading groove is formed in the inner surface of the middle section, and an opening of the pipe sleeve welding beading groove faces towards the first section.
10. Pipe sleeve according to claim 9,
the inner diameter of the middle section is increased and then decreased along the length direction of the middle section;
or the inner diameter of the middle section is firstly reduced and then increased along the length direction of the middle section;
alternatively, the middle section is a bellows.
11. Pipe sleeve according to claim 9,
the pipe sleeve further comprises a stop ring plate, the stop ring plate is located in the middle section, and a pipe sleeve flash groove is defined between the stop ring plate and the middle section.
12. The pipe sleeve of claim 11 wherein said stop ring plate is connected to an end of said intermediate segment adjacent said second segment.
13. The pipe sleeve according to any one of claims 9-12, wherein the intermediate section comprises a first connection portion, a second connection portion, and a third connection portion, the first section, the first connection portion, the second connection portion, the third connection portion, and the second section being connected in series, wherein an inner diameter of the first connection portion and an inner diameter of the third connection portion decrease in a direction away from the second connection portion.
14. The socket of claim 13, wherein an inner surface of each of the first and third connection portions is a spherical surface and an inner surface of the second connection portion is a cylindrical surface.
15. An air conditioner comprising the duct assembly of any one of claims 1-8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122471567.5U CN216618853U (en) | 2021-10-13 | 2021-10-13 | Pipe sleeve, pipeline assembly and air conditioner with pipeline assembly |
| PCT/CN2022/124633 WO2023061367A1 (en) | 2021-10-13 | 2022-10-11 | Pipe sleeve, pipeline device, and air conditioner having pipeline device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122471567.5U CN216618853U (en) | 2021-10-13 | 2021-10-13 | Pipe sleeve, pipeline assembly and air conditioner with pipeline assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618853U true CN216618853U (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122471567.5U Active CN216618853U (en) | 2021-10-13 | 2021-10-13 | Pipe sleeve, pipeline assembly and air conditioner with pipeline assembly |
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| Country | Link |
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| CN (1) | CN216618853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061367A1 (en) * | 2021-10-13 | 2023-04-20 | 广东美的暖通设备有限公司 | Pipe sleeve, pipeline device, and air conditioner having pipeline device |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061367A1 (en) * | 2021-10-13 | 2023-04-20 | 广东美的暖通设备有限公司 | Pipe sleeve, pipeline device, and air conditioner having pipeline device |
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