Inner calandria assembly, compressor and refrigeration equipment

Abstract

The utility model discloses an inner calandria assembly, compressor and refrigeration equipment, the inner calandria assembly comprises a plurality of main body pipe sections arranged at intervals, transition pipe sections located between two adjacent main body pipe sections and connecting pieces connected between the adjacent main body pipe sections and transition pipe sections, and the minimum inner diameter of the transition pipe sections is larger than the maximum inner diameter of the main body pipe sections. A transition pipe section is arranged between every two adjacent main body pipe sections; one ends of the connecting pieces are connected with the main body pipe sections, the other ends of the connecting pieces are connected with the transition pipe sections, and one connecting piece is arranged between each adjacent main body pipe section and transition pipe section. The inner calandria assembly can reduce noise and improve the starting capacity of the compressor.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and particularly relates to an inner discharge pipe assembly, a compressor and a refrigeration device. Background Art

[0002] As a core key component of refrigeration devices such as refrigerators, water dispensers, and ice makers, the starting ability and running noise of the compressor have an important impact on the overall performance of the refrigeration device. Currently, the inner discharge pipes used in the compressors of refrigeration devices are usually integrally formed by bending pipes, with the same pipe diameter throughout and a relatively small pipe diameter. When the refrigerant flows through the inner discharge pipe, the acoustic wave energy is relatively large, resulting in high noise. In addition, the resonance noise between the inner discharge pipe and the pump body of the compressor is large. Moreover, the flow area of the inner discharge pipe is small, leading to a decline in the starting ability of the compressor. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an inner discharge pipe assembly, which can reduce noise and improve the starting ability of the compressor.

[0004] The utility model also provides a compressor and a refrigeration device having the above inner discharge pipe assembly.

[0005] The inner discharge pipe assembly according to the first aspect embodiment of the utility model includes a plurality of main pipe segments arranged at intervals; a transition pipe segment located between two adjacent main pipe segments, the minimum inner diameter of the transition pipe segment being greater than the maximum inner diameter of the main pipe segment, and one transition pipe segment being provided between every two adjacent main pipe segments; and a connecting member connecting between the adjacent main pipe segment and the transition pipe segment, one end of the connecting member being connected to the main pipe segment and the other end being connected to the transition pipe segment, and one connecting member being provided between every two adjacent main pipe segments and the transition pipe segment.

[0006] The inner discharge pipe assembly according to the first aspect embodiment of the utility model has at least the following beneficial effects: The transition pipe segment is connected between two adjacent main pipe segments through the connecting member, and the minimum inner diameter of the transition pipe segment is greater than the maximum inner diameter of the main pipe segment. The refrigerant flows through one main pipe segment, the transition pipe segment, and another main pipe segment in sequence, enabling the refrigerant to experience a process of first expansion and then contraction, which is beneficial to weakening the acoustic wave energy and achieving a noise reduction effect. At the same time, since the inner discharge pipe assembly is composed of main pipe segments and transition pipe segments with different inner diameters, it can expand the frequency band range of the fixed frequency of the inner discharge pipe assembly and weaken the energy of each frequency band, which is beneficial to reducing the resonance noise between the inner discharge pipe assembly and the pump body. In addition, since the minimum inner diameter of the transition pipe segment is greater than the maximum inner diameter of the main pipe segment, it can increase the average flow area of the inner discharge pipe assembly, which is beneficial to improving the starting ability of the compressor.

[0007] According to some embodiments of the present utility model, the connecting member includes a first pipe section, a second pipe section, and a third pipe section connected in sequence. The inner diameter of the first pipe section is greater than the inner diameter of the third pipe section, and the inner diameter of the second pipe section decreases in the direction from the first pipe section to the third pipe section. The first pipe section is sleeved on the outer wall of the transition pipe section, and the third pipe section is sleeved on the outer wall of the main pipe section.

[0008] According to some embodiments of the present utility model, a positioning protrusion is provided on the inner peripheral wall of the third pipe section, and the end face of the main pipe section abuts against the positioning protrusion.

[0009] According to some embodiments of the present utility model, the first pipe section is welded to the transition pipe section, and the third pipe section is fixedly welded to the main pipe section.

[0010] According to some embodiments of the present utility model, the transition pipe section includes at least one bend.

[0011] According to some embodiments of the present utility model, the inner exhaust pipe assembly further includes sound-absorbing cotton, and the sound-absorbing cotton wraps at least a part of the outer peripheral wall of the transition pipe section; and / or, the sound-absorbing cotton wraps at least a part of the outer peripheral wall of the main pipe section.

[0012] According to some embodiments of the present utility model, the inner exhaust pipe assembly further includes a sound-absorbing package, and the sound-absorbing package is connected to one of the main pipe sections at both ends of the inner exhaust pipe assembly; or, the sound-absorbing package is connected between any adjacent main pipe section and the transition pipe section.

[0013] A compressor according to an embodiment of the second aspect of the present utility model includes a housing, a cylinder block, an exhaust pipe, and the inner exhaust pipe assembly according to the embodiment of the first aspect of the present utility model. The cylinder block and the inner exhaust pipe assembly are disposed in the housing, the exhaust pipe is installed on the housing, the cylinder block is provided with a high-pressure chamber, and both ends of the inner exhaust pipe assembly are respectively connected to the high-pressure chamber and the exhaust pipe.

[0014] The compressor according to the second aspect embodiment of the present utility model has at least the following beneficial effects: Since the compressor adopts the above-mentioned inner discharge pipe assembly, the transition pipe section is connected between two adjacent main pipe sections through a connecting piece, and the minimum inner diameter of the transition pipe section is greater than the maximum inner diameter of the main pipe section. The refrigerant flows through one main pipe section, the transition pipe section, and the other main pipe section in sequence, enabling the refrigerant to experience a process of first expansion and then contraction, which is beneficial to weakening the acoustic wave energy and achieving a noise reduction effect. At the same time, since the inner discharge pipe assembly is composed of main pipe sections and transition pipe sections with different inner diameters, it can expand the frequency band range of the fixed frequency of the inner discharge pipe assembly and weaken the energy of each frequency band, which is beneficial to reducing the resonance noise between the inner discharge pipe assembly and the pump body. In addition, since the minimum inner diameter of the transition pipe section is greater than the maximum inner diameter of the main pipe section, it can increase the average flow area of the inner discharge pipe assembly, which is beneficial to improving the starting ability of the compressor.

[0015] According to some embodiments of the present utility model, the compressor further includes a crankcase, the crankcase is located inside the housing and is provided with a hollowed-out portion, at least a part of the main pipe section is located above the crankcase, and the transition pipe section passes through the hollowed-out portion.

[0016] The refrigeration device according to the third aspect embodiment of the present utility model includes the compressor according to the second aspect embodiment of the present utility model.

[0017] The refrigeration device according to the third aspect embodiment of the present utility model has at least the following beneficial effects: Since the refrigeration device adopts the above-mentioned compressor, the transition pipe section is connected between two adjacent main pipe sections through a connecting piece, and the minimum inner diameter of the transition pipe section is greater than the maximum inner diameter of the main pipe section. The refrigerant flows through one main pipe section, the transition pipe section, and the other main pipe section in sequence, enabling the refrigerant to experience a process of first expansion and then contraction, which is beneficial to weakening the acoustic wave energy and achieving a noise reduction effect. At the same time, since the inner discharge pipe assembly is composed of main pipe sections and transition pipe sections with different inner diameters, it can expand the frequency band range of the fixed frequency of the inner discharge pipe assembly and weaken the energy of each frequency band, which is beneficial to reducing the resonance noise between the inner discharge pipe assembly and the pump body. In addition, since the minimum inner diameter of the transition pipe section is greater than the maximum inner diameter of the main pipe section, it can increase the average flow area of the inner discharge pipe assembly, which is beneficial to improving the starting ability of the compressor.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0020] Figure 1 is a schematic diagram of the internal structure of the compressor in the embodiment of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of the inner row pipe assembly in the embodiment of the present utility model;

[0022] Figure 3 It is a partial cross-sectional view showing the connection of the main pipe section, transition pipe section and connecting piece in the embodiment of the present utility model.

[0023] Reference numerals:

[0024] Main pipe section 100;

[0025] Transition pipe section 200;

[0026] Connecting piece 300; First pipe section 310; Second pipe section 320; Third pipe section 330; Positioning protrusion 331;

[0027] Shell 400; Inner cavity 410; Cylinder block 420; High-pressure cavity 421; Exhaust pipe 430; Suction pipe 440; Crankcase 450; Hollow part 451; Crankshaft 460; Cylinder head 470. Detailed implementation manners

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, it should be understood that for the orientation description, such as up, down, front, back, left, right, etc., the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, assembling, fitting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0032] As a core and key component of refrigeration equipment such as refrigerators, water dispensers, and ice makers, the starting ability and operating noise of the compressor have an important impact on the overall performance of the refrigeration equipment. At present, the inner discharge pipe used in the compressor of refrigeration equipment is usually formed by integrally bending a pipe, with the same pipe diameter throughout the whole section and a relatively small pipe diameter. When the refrigerant flows through the inner discharge pipe, its pressure, vibration, and energy are relatively large, and the acoustic wave energy generated is also relatively large, resulting in high noise. Moreover, the fixed frequency band of the inner discharge pipe is narrow, and the energy corresponding to each frequency is high, resulting in high resonance noise when resonance occurs with the pump body of the compressor. In addition, due to the small pipe diameter of the inner discharge pipe, the flow area of the inner discharge pipe is small, and the refrigerant flow rate during compressor startup is small, resulting in a decrease in the starting ability of the compressor. Therefore, how to balance low noise and improve starting ability is still a problem to be solved at present.

[0033] For this reason, with reference to Figures 1 to 3 as shown, the first aspect embodiment of the present utility model provides an inner discharge pipe assembly, which is applied to the compressor of refrigeration equipment, and the refrigeration equipment can be a refrigerator, a water dispenser, an ice maker, etc.

[0034] The specific structural form of the inner discharge pipe assembly will be described in detail below through the description of the compressor.

[0035] With reference to Figure 1 as shown, it can be understood that the compressor includes a housing 400, the housing 400 has an inner cavity 410, and the housing 400 is formed by connecting two upper and lower parts, mainly playing a role of support and protection. The compressor further includes a pump body assembly, a motor assembly, and an inner discharge pipe assembly installed in the inner cavity 410 of the housing 400.

[0036] With reference to Figure 1 as shown, it can be understood that the pump body assembly includes a cylinder block 420, a cylinder head 470, a piston, a connecting rod, a crankshaft 460, and a crankcase 450. The cylinder block 420 and the crankcase 450 are arranged side by side in the horizontal direction and are an integral structure. The cylinder head 470 is installed on one side of the cylinder block 420 and defines a compression chamber. The crankshaft 460 is arranged in the up and down direction and is rotatably installed in the crankcase 450, and the upper and lower ends of the crankshaft 460 respectively extend out of the crankcase 450. The cylinder block 420 is provided with a suction port and an exhaust port communicating with the compression chamber, and the cylinder block 420 is further provided with a high-pressure chamber 421 communicating with the exhaust port. The piston is slidably installed in the compression chamber to compress the inhaled refrigerant to do work. One end of the connecting rod is hinged to the piston, and the other end is rotatably matched with the eccentric part at the upper end of the crankshaft 460. Therefore, the piston can be driven to slide by the rotation of the crankshaft 460 to achieve compression work.

[0037] It can be understood that the motor assembly is located below the crankcase 450. The motor assembly includes a stator and a rotor. The stator is installed on the lower part of the housing 400. Generally, a spring is connected between the stator and the housing 400 to provide buffering for the motor assembly and achieve vibration reduction and noise reduction. The rotor is rotatably installed in the inner hole of the stator and is fixedly connected to the lower end of the crankshaft 460. Therefore, under the action of the magnetic field, the rotor can drive the crankshaft 460 to rotate. The crankshaft 460 drives the piston to reciprocate in the compression chamber through the connecting rod, so as to compress the inhaled refrigerant and do work to obtain a high-temperature and high-pressure refrigerant.

[0038] Referring to Figure 1 As shown, it can be understood that the compressor further includes a suction pipe 440 and an exhaust pipe 430. Both the suction pipe 440 and the exhaust pipe 430 are installed on the side wall of the housing 400 and extend to the outside of the housing 400 to be connected to the refrigeration system of the refrigeration equipment. Among them, the suction pipe 440 is connected to the suction port through a suction muffler, and the exhaust pipe 430 is connected to the high-pressure chamber 421 through an inner exhaust pipe assembly. Therefore, during the operation of the compressor, the refrigerant enters the compression chamber from the suction pipe 440 through the suction muffler. The piston compresses the refrigerant and does work to obtain a high-temperature and high-pressure refrigerant. The compressed refrigerant enters the high-pressure chamber 421 and is discharged successively through the inner exhaust pipe assembly and the exhaust pipe 430, so as to supply the high-temperature and high-pressure refrigerant to the refrigeration system to achieve refrigeration.

[0039] Referring to Figure 2 As shown, it can be understood that the inner exhaust pipe assembly includes a plurality of main pipe segments 100, transition pipe segments 200 and connecting pieces 300. Among them, the number of transition pipe segments 200 is one less than the number of main pipe segments 100, and the number of connecting pieces 300 is twice the number of transition pipe segments 200. The plurality of main pipe segments 100 are arranged at intervals, and each transition pipe segment 200 is located between two adjacent main pipe segments 100, that is, one transition pipe segment 200 is arranged between every two adjacent main pipe segments 100. And the ends of the transition pipe segments 200 are connected to the ends of the main pipe segments 100 through the connecting pieces 300, that is, the connecting pieces 300 are connected between the adjacent main pipe segments 100 and transition pipe segments 200. That is, one connecting piece 300 is arranged between every two adjacent main pipe segments 100 and transition pipe segments 200, and one end of the connecting piece 300 is connected to the main pipe segment 100 and the other end is connected to the transition pipe segment 200.

[0040] Referring to Figure 2As shown, it can be understood that, specifically, in this embodiment, the number of the main pipe segments 100 is three, the number of the transition pipe segments 200 is two, and the number of the connecting members 300 is four. The three main pipe segments 100 and the two transition pipe segments 200 are arranged alternately, and the four connecting members 300 respectively connect the adjacent main pipe segments 100 and transition pipe segments 200 together. In this way, the three main pipe segments 100, the two transition pipe segments 200 and the four connecting members 300 are connected into a pipeline. Among them, the end of the first main pipe segment 100 is connected to the high-pressure chamber 421, and the end of the third main pipe segment 100 is connected to the exhaust pipe 430. That is to say, one of the first and last main pipe segments 100 is connected to the high-pressure chamber 421, and the other is connected to the exhaust pipe 430, so that the high-temperature and high-pressure refrigerant in the high-pressure chamber 421 can flow to the exhaust pipe 430 through the main pipe segments 100 and the transition pipe segments 200 for discharge.

[0041] Referring to Figure 3 As shown, it can be understood that the minimum inner diameter of the transition pipe segment 200 is greater than the maximum inner diameter of the main pipe segment 100. Specifically, the inner diameter of the entire transition pipe segment 200 is equal, and similarly, the inner diameter of the entire main pipe segment 100 is equal. That is to say, the inner diameter of the transition pipe segment 200 is greater than the inner diameter of the main pipe segment 100. In this way, the average flow area of the inner discharge pipe assembly can be increased. The average flow area is the ratio of the total volume to the total length of the inner discharge pipe assembly, which is beneficial to increasing the refrigerant flow rate when the compressor just starts, thereby improving the starting ability of the compressor.

[0042] It can be understood that since the inner discharge pipe assembly is installed only through the main pipe segments 100 at both ends, that is, only through the main pipe segments 100 at both ends are respectively connected to the high-pressure chamber 421 and the exhaust pipe 430. By setting the inner discharge pipe assembly as a segmented structure and only increasing the inner diameter of the transition pipe segment 200, while the inner diameter of the main pipe segment 100 remains the same as before. Therefore, it is possible to increase the average flow area of the inner discharge pipe assembly without changing the installation and fixing structure of the inner discharge pipe assembly, so as to improve the starting ability of the compressor, greatly improving the practicability and versatility of the inner discharge pipe assembly, reducing the labor of re-development, and being beneficial to cost reduction.

[0043] It can be understood that since the inner discharge pipe assembly is a segmented structure, for compressors with different displacements, in order to match the starting ability, transition pipe segments 200 with different inner diameters can be used. For example, for a compressor with a larger displacement, a transition pipe segment 200 with a relatively larger inner diameter is used, and vice versa, a transition pipe segment 200 with a smaller inner diameter is used to match the starting ability of the compressor.

[0044] It can be understood that, therefore, when the refrigerant flows through the inner row pipe assembly, the refrigerant flows from one main pipe section 100 to the transition pipe section 200, and then to another main pipe section 100. Among them, when the refrigerant flows from the main pipe section 100 to the transition pipe section 200, the refrigerant collides, and when the refrigerant flows from the transition pipe section 200 to the main pipe section 100, the refrigerant shrinks. Thus, the refrigerant experiences a process of first expanding and then contracting, and this process occurs twice. In this way, the energy of the sound wave generated during the refrigerant flow can be weakened, achieving a noise reduction effect.

[0045] It can be understood that, in addition, since the inner row pipe assembly is a segmented structure, that is, it is composed of the main pipe section 100 and the transition pipe section 200 with different inner diameters. Compared with the case where the inner diameter of the whole section is equal, the frequency band range of the fixed frequency of the inner row pipe assembly in this embodiment is relatively wide. Thus, the energy of each frequency band is weakened, that is, the energy of the frequency band corresponding to the resonance between the inner row pipe assembly and the pump body assembly is weak. Therefore, the resonance noise between the inner row pipe assembly and the pump body is reduced.

[0046] Therefore, by setting the inner row pipe assembly as a segmented structure and consisting of the main pipe section 100 and the transition pipe section 200 with different inner diameters, the starting ability of the compressor can be effectively improved, and the noise can be effectively reduced.

[0047] It can be understood that, in some other embodiments, the number of the main pipe sections 100 can be two, the number of the transition pipe sections 200 is one, and the number of the connecting pieces 300 is two. Thus, a transition pipe section 200 is connected between the two main pipe sections 100 through the connecting pieces 300, which can also improve the starting ability of the compressor and reduce the noise, and will not be elaborated here.

[0048] Of course, the numbers of the main pipe section 100, the transition pipe section 200, and the connecting piece 300 can also be other values, which will not be elaborated here.

[0049] Refer to Figure 3As shown, it can be understood that the connecting member 300 includes a first pipe section 310, a second pipe section 320, and a third pipe section 330 connected in sequence. Specifically, the inner diameter of the first pipe section 310 is equal throughout the whole section, the inner diameter of the third pipe section 330 is equal throughout the whole section, and the inner diameter of the first pipe section 310 is greater than that of the third pipe section 330. The inner diameter of the second pipe section 320 decreases in the direction from the first pipe section 310 to the third pipe section 330, so that the inner diameter of the connecting member 300 transitions from a large pipe diameter to a small pipe diameter. The inner diameter of the first pipe section 310 matches the outer diameter of the transition pipe section 200, and the first pipe section 310 is sleeved on the outer wall of the transition pipe section 200 and fixedly connected to the transition pipe section 200, that is, the transition pipe section 200 is inserted into the first pipe section 310. For example, the first pipe section 310 and the transition pipe section 200 are connected by brazing to achieve a sealed connection between the first pipe section 310 and the transition pipe section 200, and the connection is stable and reliable. Similarly, the inner diameter of the third pipe section 330 matches the outer diameter of the main pipe section 100, and the third pipe section 330 is sleeved on the outer wall of the main pipe section 100 and fixedly connected to the main pipe section 100, that is, the main pipe section 100 is inserted into the third pipe section 330. For example, the third pipe section 330 and the main pipe section 100 are connected by brazing to achieve a sealed connection between the third pipe section 330 and the main pipe section 100, and the connection is stable and reliable. In this way, the structure of the connecting member 300 is simple, making the inner row pipe assembly have a stable structure and good sealing performance, and avoiding refrigerant leakage.

[0050] It can be understood that the connecting member 300 can also be in the structural forms such as a lock ring, a ferrule, etc. The specific structural form of the connecting member 300 is not specifically limited here.

[0051] It can be understood that the first pipe section 310 and the transition pipe section 200, and the third pipe section 330 and the main pipe section 100 can also be fixedly connected by glue or the like.

[0052] Refer to Figure 3 As shown, it can be understood that since the inner diameter of the second pipe section 320 decreases in the direction from the first pipe section 310 to the third pipe section 330, when the transition pipe section 200 is inserted into the first pipe section 310, the second pipe section 320 can position the transition pipe section 200, facilitating assembly, and enabling the transition pipe section 200 to be inserted in place, ensuring the sealing performance between the transition pipe section 200 and the connecting member 300.

[0053] Refer to Figure 3 As shown, it can be understood that a positioning protrusion 331 is provided on the inner peripheral wall of the third pipe section 330. The positioning protrusion 331 is annular, and the end face of the main pipe section 100 abuts against the positioning protrusion 331. Therefore, when the main pipe section 100 is inserted into the third pipe section 330, the main pipe section 100 can be positioned by the positioning protrusion 331, facilitating assembly, and enabling the main pipe section 100 to be inserted in place to ensure the sealing performance between the main pipe section 100 and the connecting member 300.

[0054] Referring to Figure 2 as shown, it can be understood that the transition pipe section 200 includes at least one bend, that is to say, the transition pipe section 200 is a non-straight pipe structure. For example, the outer shape of the transition pipe section 200 is in the shape of S, V, U, Z, etc. The S-shaped transition pipe section 200 has two bends, the V-shaped transition pipe section 200 has one bend, the U-shaped transition pipe section 200 has one bend, and the Z-shaped transition pipe section 200 has two bends. Of course, the outer shape of the transition pipe section 200 can also be other shapes, and the transition pipe section 200 can also have three, four or more bends. Therefore, when the refrigerant flows through the transition pipe section 200, the refrigerant will be reflected and collided inside the transition pipe section 200. The more bends there are, the more times the refrigerant is reflected and collided. In this way, the energy of the sound wave generated during the refrigerant flow can be further weakened, thereby further reducing the noise.

[0055] It can be understood that according to different models of compressors, transition pipe sections 200 with different outer shapes can be combined with the main pipe section 100 to form an inner row pipe assembly to adapt to the internal space of the compressor housing 400 and the installation orientation of the inner row pipe assembly, with good adaptability.

[0056] It can be understood that the inner row pipe assembly further includes sound-absorbing cotton. Specifically, the sound-absorbing cotton wraps at least a part of the outer peripheral wall of the transition pipe section 200. For example, the outer peripheral wall of the transition pipe section 200 is all wrapped with sound-absorbing cotton, or the outer peripheral wall of half of the pipe section of the transition pipe section 200 is wrapped with sound-absorbing cotton. Therefore, the noise generated during the refrigerant flow is absorbed by the sound-absorbing cotton, effectively reducing the propagation of the sound wave and further reducing the noise.

[0057] It can be understood that the outer peripheral wall of the main pipe section 100 can also be wrapped with sound-absorbing cotton to further reduce the noise.

[0058] It can be understood that in some other embodiments, the inner row pipe assembly further includes a sound-absorbing package. Specifically, the sound-absorbing package is connected to the main pipe section 100 at the head end, or the sound-absorbing package is connected to the main pipe section 100 at the tail end, or the sound-absorbing package is located between any adjacent main pipe section 100 and transition pipe section 200. Therefore, the refrigerant can flow through the sound-absorbing package, thereby reducing the air flow pulsation of the refrigerant through the sound-absorbing package and further reducing the noise. The sound-absorbing package can be arranged anywhere, as long as the refrigerant discharged from the high-pressure chamber 421 can flow through the silencer.

[0059] It can be understood that when the sound-absorbing package is connected to the main pipe section 100 at the head end, the sound-absorbing package is connected to the high-pressure chamber 421. When the sound-absorbing package is connected to the main pipe section 100 at the tail end, the sound-absorbing package is connected to the exhaust pipe 430.

[0060] It can be understood that in some other embodiments, the inner exhaust pipe assembly includes sound-absorbing cotton and a sound-absorbing package. The installation methods of the sound-absorbing cotton and the sound-absorbing package can refer to the above embodiments and will not be elaborated here. Therefore, the noise can be greatly reduced.

[0061] The compressor according to the second aspect embodiment of the present invention includes the inner exhaust pipe assembly according to the first aspect embodiment of the present invention, which will not be elaborated here.

[0062] Since the compressor adopts all the technical solutions of the inner exhaust pipe assembly of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment.

[0063] Refer to Figure 1 As shown, it can be understood that a plurality of hollow parts 451 are provided on the periphery of the crankcase 450. Generally speaking, the number of the hollow parts 451 is equal to the number of the transition pipe sections 200. Among them, at least part of the main pipe section 100 is located above the crankcase 450, so that the main pipe section 100 at the head end is connected to the high-pressure chamber 421, and the main pipe section 100 at the tail end is connected to the exhaust pipe 430. And the transition pipe sections 200 are respectively inserted through the hollow parts 451. On the one hand, the weight of the crankcase 450 can be reduced by providing the hollow parts 451. On the other hand, the transition pipe sections 200 are inserted through the hollow parts 451, which can make full use of the internal space of the housing 400, avoid the inner exhaust pipe assembly occupying too much space above the crankcase 450, and make the internal structure more compact and the layout more reasonable.

[0064] The refrigeration device according to the third aspect embodiment of the present invention includes the compressor according to the second aspect embodiment of the present invention. The refrigeration device can be a refrigerator, a water dispenser or an ice maker, etc.

[0065] Since the refrigeration device adopts all the technical solutions of the compressor of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment.

[0066] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. An inner row pipe assembly, characterized in that: include: A plurality of main pipe sections arranged at intervals; A transition pipe section located between two adjacent main pipe sections, wherein the minimum inner diameter of the transition pipe section is greater than the maximum inner diameter of the main pipe section, and one transition pipe section is provided between every two adjacent main pipe sections; A connecting piece is connected between the adjacent main pipe section and the transition pipe section, one end of the connecting piece is connected to the main pipe section, and the other end is connected to the transition pipe section, and one connecting piece is arranged between each adjacent main pipe section and the transition pipe section.

2. The inner row pipe assembly according to claim 1, characterized in that: The connecting piece includes a first pipe segment, a second pipe segment and a third pipe segment connected in sequence, the inner diameter of the first pipe segment is greater than the inner diameter of the third pipe segment, the inner diameter of the second pipe segment decreases from the first pipe segment to the third pipe segment, the first pipe segment is sleeved on the outer wall of the transition pipe segment, and the third pipe segment is sleeved on the outer wall of the main pipe segment.

3. The inner row pipe assembly according to claim 2, characterized in that: The inner peripheral wall of the third pipe section is provided with a positioning protrusion, and the end surface of the main pipe section abuts against the positioning protrusion.

4. The inner row pipe assembly according to claim 2, characterized in that: The first pipe section is fixed to the transition pipe section by welding, and the third pipe section is connected to the main pipe section by welding.

5. The inner row pipe assembly according to claim 1, characterized in that: The transition pipe section includes at least one bend.

6. The inner row pipe assembly according to claim 1, characterized in that: The inner row pipe assembly also includes sound-absorbing cotton, which is wrapped around at least a portion of the outer circumferential wall of the transition pipe section; and / or the sound-absorbing cotton is wrapped around at least a portion of the outer circumferential wall of the main pipe section.

7. The inner row pipe assembly according to claim 1 or 6, characterized in that: The inner row pipe assembly also includes a silencer bag, which is connected to one of the main pipe sections located at both ends of the inner row pipe assembly; or, the silencer bag is connected between any adjacent main pipe section and the transition pipe section.

8. A compressor, characterized in that: It comprises a shell, a cylinder body, an exhaust pipe and an inner pipe assembly as described in any one of claims 1 to 7, wherein the cylinder body and the inner pipe assembly are arranged in the shell, the exhaust pipe is installed on the shell, the cylinder body is provided with a high-pressure chamber, and two ends of the inner pipe assembly are respectively connected to the high-pressure chamber and the exhaust pipe.

9. The compressor according to claim 8, characterized in that: The compressor further includes a crankcase, which is located in the shell and is provided with a hollow portion, at least a portion of the main pipe section is located on the upper side of the crankcase, and the transition pipe section is passed through the hollow portion.

10. Refrigeration equipment, characterized in that Comprising the compressor as claimed in claim 8 or 9.

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