Gas collector assembly, heat exchanger assembly and air conditioner

Abstract

The application provides a gas collecting pipe assembly, a heat exchanger assembly and an air conditioner. The gas collecting pipe assembly comprises a gas collecting main pipe provided with a plurality of flange holes and a plurality of first gas collecting branch pipes, each of which is connected to the gas collecting main pipe through one of the flange holes; wherein the end face of one end of each of the first gas collecting branch pipes close to the gas collecting main pipe is an arc-shaped end face. In the application, each of the first gas collecting branch pipes is connected to the gas collecting main pipe through one of the flange holes. Moreover, the end face of one end of each of the first gas collecting branch pipes close to the gas collecting main pipe is an arc-shaped end face, which can reduce the obstruction of the first gas collecting branch pipes to the refrigerant and weaken the disturbance of the first gas collecting branch pipes to the refrigerant. Therefore, the flow effect of the refrigerant is improved, the heat exchange effect is improved, the noise during the flow of the refrigerant is reduced, and the experience of the user using the air conditioner is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a gas collection pipe assembly, a heat exchanger assembly, and an air conditioner. Background Technology

[0002] The gas manifold assembly is used in the heat exchanger of an air conditioning system to guide the flow of refrigerant in order to achieve sufficient heat exchange.

[0003] In related technologies, the refrigerant will be disturbed when it flows between the main pipe and branch pipe of the gas collection pipe assembly, which will affect the heat exchange effect and generate a lot of noise, thus affecting the user experience of the air conditioner. Utility Model Content

[0004] This application provides a gas collection pipe assembly, a heat exchanger assembly, and an air conditioner to improve the problem that the refrigerant is easily disturbed in the gas collection pipe, which affects the heat exchange effect and causes excessive noise.

[0005] In a first aspect, this application proposes a gas collecting pipe assembly, comprising: a main gas collecting pipe having a plurality of flanged holes; and a plurality of first gas collecting branch pipes, each of the first gas collecting branch pipes being connected to the main gas collecting pipe through one of the flanged holes; wherein the end face of the first gas collecting branch pipe near the main gas collecting pipe is an arc-shaped end face.

[0006] In this application, each first gas collecting branch pipe is connected to the main gas collecting pipe through a flanged hole. Furthermore, the end face of the first gas collecting branch pipe near the main gas collecting pipe is an arc-shaped end face, which closely matches the shape of the inner wall of the main gas collecting pipe. The arc-shaped end face reduces the obstruction of the first gas collecting branch pipe to the refrigerant, thus weakening the disturbance effect of the first gas collecting branch pipe on the refrigerant. This improves the refrigerant flow efficiency, thereby enhancing the heat exchange effect, and also reduces the noise during refrigerant flow, ultimately improving the user experience of the air conditioner.

[0007] In some embodiments, the end of the first gas collecting branch pipe near the main gas collecting pipe does not extend into the inner cavity of the main gas collecting pipe.

[0008] In some embodiments, the end face of the first gas collecting branch pipe near the gas collecting main pipe is flush with the inner wall of the gas collecting main pipe.

[0009] In some embodiments, the length of the flanged hole protruding from the outer wall of the main gas collecting pipe is greater than or equal to the thickness of the main gas collecting pipe.

[0010] In some embodiments, the main gas collecting pipe is a stainless steel pipe, and the first gas collecting branch pipe is a stainless steel pipe, a copper pipe, or a copper alloy pipe. The main gas collecting pipe and the first gas collecting branch pipe are welded by furnace brazing or high-frequency welding.

[0011] In some embodiments, the gas collection pipe assembly further includes a first connecting pipe and a sealing plate; the main gas collection pipe includes a first straight pipe section, a first bent pipe section and a second straight pipe section, the first straight pipe section is connected to the second straight pipe section through the first bent pipe section, the second straight pipe section is welded to the first connecting pipe, and the end of the first straight pipe section is sealed and welded to the sealing plate.

[0012] In some embodiments, the first connector is a copper pipe or a copper alloy pipe, and the thickness of the first connector is greater than or equal to the thickness of the main gas collection pipe.

[0013] In some embodiments, the sealing strip is a copper sealing strip, a copper alloy sealing strip, or a stainless steel sealing strip, and the thickness of the sealing strip is greater than or equal to the thickness of the gas collection main pipe.

[0014] In some embodiments, the included angle between the first straight pipe section and the second straight pipe section is greater than or equal to 120° and less than or equal to 180°.

[0015] In some embodiments, the end of the second straight pipe section is provided with a first flared portion, and the first connecting pipe extends into the first flared portion and is welded to the second straight pipe section.

[0016] In some embodiments, one end of the first connecting pipe is provided with a first flared portion, and the second straight pipe section extends into the first flared portion and is welded to the first connecting pipe.

[0017] In some embodiments, the gas collection pipe assembly further includes a main pipe extension pipe, a plurality of second gas collection branch pipes, and a second connecting pipe. The main pipe extension pipe is provided with a plurality of the flanged holes. Each second gas collection branch pipe is connected to the main pipe extension pipe through the flanged holes. The end face of the second gas collection branch pipe near the main pipe extension pipe is an arc-shaped end face. The main pipe extension pipe and the main gas collection pipe are welded together through the second connecting pipe.

[0018] In some embodiments, the main gas collection pipe and the main pipe extension pipe are stainless steel pipes, the second connecting pipe is a copper pipe or a copper alloy pipe, and the thickness of the second connecting pipe is greater than or equal to the thickness of the main gas collection pipe and the main pipe extension pipe.

[0019] In some embodiments, the first end of the second connector is provided with a second flared portion, the second end of the second connector is provided with a third flared portion, the main pipe extension extends into the second flared portion and is welded to the second connector, and the gas collecting main pipe extends into the third flared portion and is welded to the second connector.

[0020] In some embodiments, one end of the main pipe extension tube is provided with a second flared portion, one end of the gas collecting main pipe is provided with a third flared portion, one end of the second connecting pipe extends into the second flared portion and is welded to the main pipe extension tube, and the other end of the second connecting pipe extends into the third flared portion and is welded to the gas collecting main pipe.

[0021] Secondly, this application proposes a heat exchanger assembly, including a heat exchanger body and the gas collecting pipe assembly described in the first aspect, wherein the other end of each of the first gas collecting branch pipes is connected to the heat exchanger body.

[0022] Thirdly, this application proposes an air conditioner including the heat exchanger assembly described in the second aspect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the connection between a heat exchanger assembly and a four-way reversing valve provided in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of a gas collection pipe assembly provided in an embodiment of this application;

[0026] Figure 3 A partial cross-sectional structural diagram of the connection between the first gas collecting branch pipe and the main gas collecting pipe provided in an embodiment of this application;

[0027] Figure 4 This is a cross-sectional structural diagram of a second straight pipe section, a first connecting pipe, and a piping connection provided in an embodiment of this application;

[0028] Figure 5 This is a schematic cross-sectional view of another embodiment of the second straight pipe section, the first connecting pipe, and the piping connection provided in this application.

[0029] Figure 6 This is a schematic diagram of another structure of the gas collection pipe assembly provided in one embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10-Heat exchanger assembly; 11-Heat exchanger body;

[0032] 100-Gas collection pipe assembly, 110-Gas collection main pipe, 111-Flanged hole, 112-First straight pipe section, 113-First bend pipe section, 114-Second straight pipe section, 120-First gas collection branch pipe, 130-First connecting pipe, 140-Sealing plate, 131-First flared section, 150-Main pipe extension, 160-Second gas collection branch pipe, 170-Second connecting pipe, 171-Second flared section, 172-Third flared section;

[0033] 300 - Four-way directional valve, 310 - Copper fitting. Detailed Implementation

[0034] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0035] The manifold of an air conditioning system is part of the air conditioning refrigeration cycle. The manifold optimizes the flow path and ensures efficient heat exchange. In related technologies, the outdoor heat exchanger is connected to the manifold. When the air conditioning system is in cooling mode, the refrigerant flows from the piping of the four-way reversing valve to the main pipe of the manifold, then from the main pipe to the various branch pipes, and finally the refrigerant in the branch pipes flows back into the outdoor heat exchanger. When the air conditioning system is in heating mode, the refrigerant flows from the outdoor heat exchanger to the branch pipes of the flute-shaped pipe, then from the branch pipes of the flute-shaped pipe to the main pipe, and finally the refrigerant in the main pipe flows back into the piping of the four-way reversing valve.

[0036] The air manifold mainly consists of a main pipe and multiple branch pipes. The branch pipes are welded to the wall of the main pipe, and a portion of each branch pipe extends into the main pipe. When the refrigerant flows through the air manifold, it is disturbed by the ends of the branch pipes extending into the main pipe, resulting in restricted refrigerant flow and poor heat exchange. Furthermore, the disturbance caused by the branch pipes also generates noise. All of this significantly impacts the user experience of the air conditioner.

[0037] Based on the above problems, this application proposes a gas collection pipe assembly, a heat exchanger assembly, and an air conditioner to improve the user experience of air conditioning.

[0038] Firstly, this application proposes a gas collecting pipe assembly 100. For example... Figures 1 to 3 As shown, the gas collection pipe assembly 100 includes a main gas collection pipe 110 and a plurality of first gas collection branch pipes 120. The main gas collection pipe 110 is provided with a plurality of flanged holes 111, and each first gas collection branch pipe 120 is connected to the main gas collection pipe 110 through a flanged hole 111. The end face of the first gas collection branch pipe 120 near the main gas collection pipe 110 is an arc-shaped end face.

[0039] The main gas collecting pipe 110 is the main body of the gas collecting pipe assembly 100, and multiple first gas collecting branch pipes 120 are connected to the main gas collecting pipe 110 through flanged holes 111. A flanged hole 111 refers to a hole whose edge is folded or rolled to form a protruding hole structure facing away from the outer surface of the main gas collecting pipe 110. That is, the flanged hole 111 has a flange, and the flange is located on the outer surface of the main gas collecting pipe 110.

[0040] The flanged hole 111 can improve the connection strength and ease of connection between the first gas collecting branch pipe 120 and the main gas collecting pipe 110. Please refer to... Figure 3 First, when the first gas collecting branch pipe 120 is inserted into the flanged hole 111, the wall of the flanged hole 111 can position the first gas collecting branch pipe 120, thereby reducing the installation error of the first gas collecting branch pipe 120 and increasing the contact area between the first gas collecting branch pipe 120 and the main gas collecting pipe 110, thus improving the connection strength between the two. Second, solder can be placed between the wall of the flanged hole 111 and the outer wall of the first gas collecting branch pipe 120, so that the two can be welded together, thereby improving the convenience of connection.

[0041] In this application, each first gas collecting branch pipe 120 is connected to the gas collecting main pipe 110 through a flanged hole 111. Furthermore, the end face of the first gas collecting branch pipe 120 near the gas collecting main pipe 110 is an arc-shaped end face. An arc-shaped end face means that the end face of the first gas collecting branch pipe 120 is concave towards the side away from the gas collecting main pipe 110. In other words, the middle portion of the end face of the first gas collecting branch pipe 120 located inside the gas collecting main pipe 110 is concave, which closely matches the shape of the inner wall of the gas collecting main pipe 110. Compared to the method in related technologies where the first gas collecting branch pipe 120 is directly inserted into the gas collecting main pipe 110, the arc-shaped end face of this application reduces the obstruction of the first gas collecting branch pipe 120 to the refrigerant, thus weakening the disturbance effect of the first gas collecting branch pipe 120 on the refrigerant. This improves the refrigerant flow effect, thereby enhancing the heat exchange effect, and also reduces the noise during refrigerant flow, thus improving the user experience of the air conditioner.

[0042] It is readily understood that the gas collection pipe assembly 100 of this application can replace the gas collection pipe assembly 100 in the related art, and it can be used in both outdoor and indoor units, and this application does not limit it in this regard.

[0043] In some embodiments, such as Figure 3As shown, the end of the first gas collecting branch pipe 120 near the main gas collecting pipe 110 does not extend into the inner cavity of the main gas collecting pipe 110. This arrangement ensures that one end of the first gas collecting branch pipe 120 is located only within the flanged hole 111, which helps to further reduce the disturbance of the first gas collecting branch pipe 120 to the refrigerant, thereby further improving the heat exchange effect and reducing the noise during refrigerant flow, and thus further improving the user experience of the air conditioner.

[0044] In some embodiments, such as Figure 3 As shown, the end face of the first gas collecting branch pipe 120 near the gas collecting main pipe 110 is flush with the inner wall of the gas collecting main pipe 110. This reduces the disturbance of the refrigerant by the first gas collecting branch pipe 120, thus reducing noise during refrigerant flow. Furthermore, it increases the contact area between the first gas collecting branch pipe 120 and the gas collecting main pipe 110, thereby improving the connection strength between them.

[0045] In some embodiments, such as Figure 3 As shown, the length of the flanged hole 111 protruding from the outer wall of the main gas collecting pipe 110 is greater than or equal to the thickness of the main gas collecting pipe 110. This design ensures, on the one hand, a sufficiently large contact area between the first gas collecting branch pipe 120 and the flanged hole 111, improving the ease of welding. On the other hand, the air conditioner experiences mechanical shaking during transportation; furthermore, during operation, the piping is subjected to pulsating impacts from refrigerant pressure, resulting in regular vibrations. These shaking or vibrations transmit the impact to the main gas collecting pipe 110, and then to the multiple first gas collecting branch pipes 120, potentially causing cracks or other defects between the main gas collecting pipe 110 and the first gas collecting branch pipes 120. In this embodiment, the length of the flanged hole 111 protruding from the outer wall of the main gas collecting pipe 110 is set to be greater than or equal to the thickness of the main gas collecting pipe 110, so that a certain length of radial overlap can be formed between the first gas collecting branch pipe 120 and the flanged hole 111. This can improve the fatigue strength of the first gas collecting branch pipe 120 and the main gas collecting pipe 110 after welding, and reduce the probability of crack defects between the first gas collecting branch pipe 120 and the flanged hole 111.

[0046] In some embodiments, the gas collection main pipe 110 is a stainless steel pipe. Specifically, the gas collection main pipe 110 can be a welded stainless steel pipe, which can improve the strength and corrosion resistance of the gas collection main pipe 110, and also reduce the cost of the gas collection main pipe 110.

[0047] Furthermore, the first gas collecting branch pipe 120 can be made of stainless steel, copper, or copper alloy. When the first gas collecting branch pipe 120 is made of stainless steel, it can also be a welded steel pipe. Copper alloy pipes can be, for example, deoxidized phosphor bronze, brass, or bronze. Since the first gas collecting branch pipe 120 uses less material, using the above-mentioned materials to manufacture the first gas collecting branch pipe 120 can improve its strength and corrosion resistance while ensuring low manufacturing costs. Furthermore, the gas collecting main pipe 110 and the first gas collecting branch pipe 120 can be welded by furnace brazing or high-frequency welding, which also helps to improve the convenience of connecting the gas collecting main pipe 110 and the first gas collecting branch pipe 120.

[0048] In some embodiments, such as Figures 1 to 4 As shown, the gas collection pipe assembly 100 also includes a first connecting pipe 130 and a sealing plate 140. The main gas collection pipe 110 includes a first straight pipe section 112, a first bent pipe section 113, and a second straight pipe section 114. The first straight pipe section 112 is connected to the second straight pipe section 114 through the first bent pipe section 113. The second straight pipe section 114 is welded to the first connecting pipe 130. The end of the first straight pipe section 112 is sealed and welded to the sealing plate 140. By setting the sealing plate 140, one end of the main gas collection pipe 110 can be sealed to prevent refrigerant leakage. The first bent pipe section 113 is located between the first straight pipe section 112 and the second straight pipe section 114. Since the second straight pipe section 114 needs to be connected to the first connecting pipe 130, and the whole unit will vibrate during operation or transportation. Therefore, the first bend section 113 can absorb vibration energy, thereby reducing the impact of vibration energy on the connection between the first gas collecting branch pipe 120 and the main gas collecting pipe 110, and the connection between the second straight pipe section 114 and the first connecting pipe 130. This helps to improve the strength of the gas collecting pipe assembly 100 and reduce the probability of leakage in the gas collecting pipe assembly 100. Optionally, the first straight pipe section 112, the first bend section 113, and the second straight pipe section 114 are integrally formed structures.

[0049] The first connecting pipe 130 is used to connect to the piping 310 of an external component, such as a four-way directional valve 300. By providing the first connecting pipe 130, the convenience and reliability of connecting the main gas collection pipe 110 to external components are improved.

[0050] In some embodiments, the first connecting pipe 130 is a copper pipe or a copper alloy pipe. Copper pipes or copper alloy pipes have good weldability and are easy to weld, for example, they can be welded by manual arc welding, furnace brazing, high-frequency welding, etc. Further, the thickness of the first connecting pipe 130 is greater than or equal to the thickness of the main gas collecting pipe 110. Since the main gas collecting pipe 110 is made of stainless steel, specifically Fe-Cr-Ni stainless steel, meaning the main elements of the material are Fe-Cr-Ni, and the yield strength of steel is much greater than that of copper, this embodiment sets the thickness of the first connecting pipe 130 to be greater than or equal to the thickness of the main gas collecting pipe 110. This ensures the weld strength of the first connecting pipe 130 after welding, thereby improving the strength and reliability of the gas collecting pipe assembly 100.

[0051] Alternatively, in some embodiments, such as Figure 4 As shown, a copper connector 311 is provided at the end of the piping 310, and the second straight pipe section 114 is welded to the copper connector 311 of the piping 310 through the first connecting pipe 130. Since the main materials of the first connecting pipe 130 and the copper connector 311 are both copper, welding between copper pipes is more convenient, thereby further improving the welding convenience between the main gas collecting pipe 110 and the piping 310.

[0052] Alternatively, in other embodiments, such as Figure 5 As shown, the second straight pipe section 114 is directly welded to the piping 310 via the first connecting pipe 130. That is, no copper connecting pipe is installed at the end of the piping 310. In this case, high-frequency welding or brazing can be used to complete the welding between the main gas collecting pipe 110 and the piping 310. By eliminating a copper connector, the number of welding operations and welds can be reduced, thereby helping to lower production costs and the probability of weld leaks.

[0053] In some embodiments, the sealing strip 140 is a copper sealing strip, a copper alloy sealing strip, or a stainless steel sealing strip, and the thickness of the sealing strip 140 is greater than or equal to the thickness of the gas collecting main pipe 110. The sealing strip 140 can be welded to the gas collecting main pipe 110 by furnace brazing, high-frequency welding, or other methods. In this embodiment, the thickness of the sealing strip 140 is set to be greater than or equal to the thickness of the gas collecting main pipe 110, so that the welding strength of the sealing strip 140 can be guaranteed after welding, thereby improving the sealing strength and reliability of the sealing strip 140 to the gas collecting main pipe 110.

[0054] In some embodiments, such as Figure 1 and Figure 2As shown, the included angle between the first straight pipe section 112 and the second straight pipe section 114 is greater than or equal to 120° and less than or equal to 180°. The included angle between the first straight pipe section 112 and the second straight pipe section 114 refers to the angle between the axis of the first straight pipe section 112 and the axis of the second straight pipe section 114. For example, the included angle can be 120°, 130°, 150°, 170°, 180°, etc. For easier understanding, please refer to [reference needed]. Figure 2 When the included angle between the two is 180°, they are parallel. In this embodiment, the included angle between the first straight pipe section 112 and the second straight pipe section 114 is limited to between 120° and 180°. On the one hand, this can improve the vibration resistance of the main gas collecting pipe 110, thereby improving the strength of the gas collecting pipe assembly 100. On the other hand, it can also reduce the overall length of the main gas collecting pipe 110, making it easier to connect the gas collecting pipe assembly 100 to external components within a limited space. This also helps to improve the convenience of connection and reduce the probability of interference.

[0055] In some embodiments, such as Figure 4 As shown, one end of the first connecting pipe 130 is provided with a first flared portion 131, and the second straight pipe section 114 extends into the first flared portion 131 and is welded to the first connecting pipe 130. This arrangement results in a radial overlap between the first connecting pipe 130 and the second straight pipe section 114, leading to a thicker total thickness after welding. This improves the reliability of the connection between the first connecting pipe 130 and the second straight pipe section 114, and consequently enhances their fatigue resistance after welding.

[0056] In other embodiments, the end of the second straight pipe section 114 is provided with a first flared portion 131, and the first connecting pipe 130 extends into the first flared portion 131 and is welded to the second straight pipe section 114. This arrangement results in a radial overlap between the first connecting pipe 130 and the second straight pipe section 114, thus increasing the overall thickness after welding. This improves the reliability of the connection between the first connecting pipe 130 and the second straight pipe section 114, and consequently enhances the fatigue resistance of the connection point during the transportation and operation of the air conditioning system.

[0057] It should be noted that the sealing plate 140, the main gas collecting pipe 110, the first connecting pipe 130, and the first gas collecting branch pipe 120 can be welded together in one operation using in-furnace brazing. Specifically, in a high-temperature environment, hydrogen or hydrogen from ammonia decomposition is arranged inside the furnace. The reducing gas can reduce the external oxide film on the stainless steel main gas collecting pipe 110, allowing the brazing filler metal to spread on the aforementioned components in the furnace, ultimately achieving diffusion brazing. Optionally, the solder can be phosphor bronze solder or silver-based solder.

[0058] In some embodiments, such as Figure 6 As shown, the gas collection pipe assembly 100 also includes a main pipe extension pipe 150, a plurality of second gas collection branch pipes 160 and a second connecting pipe 170. The main pipe extension pipe 150 is provided with a plurality of flanged holes 111. Each second gas collection branch pipe 160 is connected to the main pipe extension pipe 150 through the flanged holes 111. The end face of the second gas collection branch pipe 160 near the main pipe extension pipe 150 is an arc-shaped end face. The main pipe extension pipe 150 and the main gas collection pipe 110 are welded together through the second connecting pipe 170.

[0059] In this embodiment, the main pipe extension 150 and the main gas collecting pipe 110 are welded together via a second connecting pipe 170. By providing the main pipe extension 150, the main gas collecting pipe 110 and the main pipe extension 150 can be used in situations where multiple heat exchangers are connected, thereby improving the convenience of connecting the main gas collecting pipe 110 to the heat exchanger. Furthermore, each second gas collecting branch pipe 160 is connected to the main pipe extension 150 via a flanged hole 111, and the end face of the second gas collecting branch pipe 160 near the main pipe extension 150 is an arc-shaped end face. This design improves the reliability of the connection between the second gas collecting branch pipe 160 and the main pipe extension 150, and also weakens the disturbance effect of the second gas collecting branch pipe 160 on the refrigerant. This improves the refrigerant flow effect, thereby enhancing the heat exchange effect, and also reduces the noise during refrigerant flow, thus improving the user experience of the air conditioner.

[0060] In some embodiments, the main gas collecting pipe 110 and the main pipe extension 150 are stainless steel pipes, and the second connecting pipe 170 is a copper pipe or a copper alloy pipe, the thickness of which is greater than or equal to the thickness of the main gas collecting pipe 110 and the main pipe extension 150. This configuration, firstly, reduces the cost of the gas collecting pipe assembly 100. Secondly, it improves the ease of welding the main gas collecting pipe 110 and the main pipe extension 150. Furthermore, setting the thickness of the second connecting pipe 170 to be greater than or equal to the thickness of the main gas collecting pipe 110 and the main pipe extension 150 ensures the weld strength of the second connecting pipe 170 after welding, thereby improving the strength and reliability of the gas collecting pipe assembly 100. It is readily understood that after the main gas collecting pipe 110 and the main pipe extension 150 are welded, the other end of the main pipe extension 150 is sealed using a sealing plate 140.

[0061] In some embodiments, such as Figure 6As shown, the first end of the second connector 170 has a second flared portion 171, and the second end of the second connector 170 has a third flared portion 172. The main pipe extension 150 extends into the second flared portion 171 and is welded to the second connector 170. The gas collecting main pipe 110 extends into the third flared portion 172 and is welded to the second connector 170. This arrangement results in a radial overlap between the second connector 170 and the main pipe extension 150, leading to a thicker total thickness after welding. Similarly, a radial overlap between the second connector 170 and the gas collecting main pipe 110 also results in a thicker total thickness after welding. This improves the reliability of the connection between the second connector 170 and the main pipe extension 150, as well as the connection between the second connector 170 and the gas collecting main pipe 110, thereby enhancing the fatigue resistance of the main pipe extension 150, the second connector 170, and the gas collecting main pipe 110 during the transportation and operation of the entire machine.

[0062] In other embodiments, one end of the main pipe extension 150 is provided with a second flared portion 171, and one end of the gas collecting main pipe 110 is provided with a third flared portion 172. One end of the second connecting pipe 170 extends into the second flared portion 171 and is welded to the main pipe extension 150, and the other end of the second connecting pipe 170 extends into the third flared portion 172 and is welded to the gas collecting main pipe 110. This arrangement results in a radial overlap between the second connecting pipe 170 and the main pipe extension 150, leading to a thicker total thickness after welding. Simultaneously, the radial overlap between the second connecting pipe 170 and the gas collecting main pipe 110 also results in a thicker total thickness after welding. This improves the reliability of the connection between the second connecting pipe 170 and the main pipe extension 150, as well as the connection between the second connecting pipe 170 and the gas collecting main pipe 110, thereby enhancing the fatigue resistance of the connection points of the main pipe extension 150, the second connecting pipe 170, and the gas collecting main pipe 110 during the transportation and operation of the air conditioner.

[0063] Secondly, this application also proposes a heat exchanger assembly 10, such as Figure 1 As shown, the heat exchanger assembly 10 includes a heat exchanger body 11 and the gas collecting pipe assembly 100 described in the first aspect, with the other end of each first gas collecting branch pipe 120 connected to the heat exchanger body 11. It should be noted that... Figure 1 Only a portion of the structure of the heat exchanger body 11 is shown to illustrate that the other end of the first gas collecting branch pipe 120 is connected to the heat exchanger body 11.

[0064] The heat exchanger assembly 10 of this application uses the gas collection pipe assembly 10 of the first aspect, which is beneficial to improving the refrigerant flow effect, thereby improving the heat exchange effect, and at the same time can reduce the noise during refrigerant flow, thereby improving the user experience of air conditioning.

[0065] Thirdly, this application also proposes an air conditioner including the heat exchanger assembly 10 described in the second aspect, which is beneficial to improving the heat exchange effect, reducing the noise during refrigerant flow, and thus improving the user experience of the air conditioner.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] 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. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gas collecting pipe assembly, characterized in that, include: A gas collecting main pipe, wherein the gas collecting main pipe is provided with multiple flanged holes; as well as Multiple first gas collecting branch pipes, each of which is connected to the main gas collecting pipe through a flanged hole; The end face of the first gas collecting branch pipe near the main gas collecting pipe is an arc-shaped end face.

2. The gas collection pipe assembly according to claim 1, characterized in that, The end of the first gas collecting branch pipe near the main gas collecting pipe does not extend into the inner cavity of the main gas collecting pipe.

3. The gas collection pipe assembly according to claim 2, characterized in that, The end face of the first gas collecting branch pipe near the gas collecting main pipe is flush with the inner wall of the gas collecting main pipe.

4. The gas collection pipe assembly according to claim 1, characterized in that, The length of the flanged hole protruding from the outer wall of the main gas collecting pipe is greater than or equal to the thickness of the main gas collecting pipe.

5. The gas collecting pipe assembly according to claim 1, characterized in that, The main gas collecting pipe is made of stainless steel, and the first gas collecting branch pipe is made of stainless steel, copper, or copper alloy. The main gas collecting pipe and the first gas collecting branch pipe are welded together by furnace brazing or high-frequency welding.

6. The gas collection pipe assembly according to claim 1, characterized in that, The gas collection pipe assembly also includes a first connecting pipe and a sealing plate; The main gas collection pipe includes a first straight pipe section, a first bend pipe section, and a second straight pipe section. The first straight pipe section is connected to the second straight pipe section through the first bend pipe section. The second straight pipe section is welded to the first connecting pipe. The end of the first straight pipe section is sealed and welded to the sealing plate.

7. The gas collection pipe assembly according to claim 6, characterized in that, The first connecting pipe is a copper pipe or a copper alloy pipe, and the thickness of the first connecting pipe is greater than or equal to the thickness of the main gas collecting pipe. And / or, the sealing strip is a copper sealing strip, a copper alloy sealing strip, or a stainless steel sealing strip, and the thickness of the sealing strip is greater than or equal to the thickness of the gas collection main pipe.

8. The gas collection pipe assembly according to claim 6, characterized in that, The included angle between the first straight pipe section and the second straight pipe section is greater than or equal to 120° and less than or equal to 180°.

9. The gas collection pipe assembly according to claim 6, characterized in that, The end of the second straight pipe section is provided with a first flared portion, and the first connecting pipe extends into the first flared portion and is welded to the second straight pipe section; Alternatively, one end of the first connecting pipe is provided with a first flared portion, and the second straight pipe section extends into the first flared portion and is welded to the first connecting pipe.

10. The gas collection pipe assembly according to claim 1, characterized in that, The gas collection pipe assembly also includes a main pipe extension pipe, a plurality of second gas collection branch pipes and a second connecting pipe. The main pipe extension pipe is provided with a plurality of flanged holes. Each second gas collection branch pipe is connected to the main pipe extension pipe through the flanged hole. The end face of the second gas collection branch pipe near the main pipe extension pipe is an arc-shaped end face. The main pipe extension and the gas collection main pipe are welded together via the second connecting pipe.

11. The gas collection pipe assembly according to claim 10, characterized in that, The main gas collecting pipe and the main pipe extension pipe are stainless steel pipes, and the second connecting pipe is a copper pipe or a copper alloy pipe. The thickness of the second connecting pipe is greater than or equal to the thickness of the main gas collecting pipe and the main pipe extension pipe.

12. The gas collection pipe assembly according to claim 10, characterized in that, The first end of the second connector is provided with a second flared portion, the second end of the second connector is provided with a third flared portion, the main pipe extension extends into the second flared portion and is welded to the second connector, and the gas collecting main pipe extends into the third flared portion and is welded to the second connector. Alternatively, one end of the main pipe extension tube is provided with a second flared portion, one end of the gas collecting main pipe is provided with a third flared portion, one end of the second connecting pipe extends into the second flared portion and is welded to the main pipe extension tube, and the other end of the second connecting pipe extends into the third flared portion and is welded to the gas collecting main pipe.

13. A heat exchanger assembly, characterized in that, It includes a heat exchanger body and a gas collecting pipe assembly as described in any one of claims 1-12, wherein the other end of each of the first gas collecting branch pipes is connected to the heat exchanger body.

14. An air conditioner, characterized in that, Includes the heat exchanger assembly as described in claim 13.

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