Exhaust assembly, compressor and refrigeration device

Abstract

This invention discloses an exhaust assembly, a compressor, and a refrigeration device, relating to the field of compressor technology. The exhaust assembly includes a first cavity and a second cavity. One end of the first cavity is provided with a first air inlet, which is used to communicate with the exhaust port on an exhaust valve. A first air outlet is provided on one side of the first cavity. The second cavity is located around the first cavity and is arranged around the exhaust valve. The second cavity is provided with a second air inlet and a second air outlet, which communicate with the first air outlet. In this application, the exhaust assembly significantly reduces the overall space occupation while ensuring good noise reduction effect, thereby solving the technical problem that conventional exhaust mufflers occupy too large an arrangement area in a limited internal space.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to an exhaust assembly, a compressor, and a refrigeration device. Background Technology

[0002] In related technologies, the internal space of a compressor is limited. However, due to the limitations of its own structural design, conventional exhaust mufflers often need to occupy a large installation space inside the compressor, resulting in them taking up too much space in the already limited internal space. Summary of the Invention

[0003] The main objective of this invention is to propose an exhaust assembly, a compressor, and a refrigeration device, aiming to solve the technical problem of low utilization rate of internal space in the compressor due to unreasonable exhaust muffler structural design.

[0004] To achieve the above objectives, the present invention provides an exhaust assembly for a compressor, the exhaust assembly comprising: A first cavity, having a first air inlet at one end for communication with an exhaust port on an exhaust valve, and a first air outlet on one side of the first cavity; and The second cavity is located on the periphery of the first cavity and is arranged on the periphery of the exhaust valve. The second cavity is provided with a second air inlet and a second air outlet, and the second air inlet is connected to the first air outlet.

[0005] In one embodiment, a partition is provided in the second cavity to divide the second cavity into a first sub-cavity and a second sub-cavity, wherein the first sub-cavity is connected to the second air inlet and the second sub-cavity is connected to the second air outlet; The first sub-cavity and the second sub-cavity are interconnected.

[0006] In one embodiment, at least one first pipe is provided on the partition, the first pipe being fixedly inserted through the partition, with its two ends located in the first sub-cavity and the second sub-cavity, respectively; and / or At least one second pipe is provided on the partition plate. The second pipe is bent and located in the first sub-cavity. Both ends of the second pipe extend into the second sub-cavity.

[0007] In one embodiment, a mounting hole is provided through the partition plate, and the first pipe or the second pipe is fixed to the partition plate through the mounting hole; The partition plate is provided with at least one flow guide groove, one end of the flow guide groove extends to the mounting hole and communicates with the mounting hole, and the other end of the flow guide groove extends to the periphery of the partition plate.

[0008] In one embodiment, the inner wall of the second cavity is provided with at least one slot, and a portion of the partition is embedded in the slot.

[0009] In one embodiment, the exhaust assembly further includes a communicating channel disposed between the first cavity and the second cavity, one end of the communicating channel being connected to the first air outlet and the other end being connected to the second air inlet; The cross-sectional area of ​​the connecting channel is smaller than the cross-sectional areas of the first cavity and the second cavity.

[0010] In one embodiment, the exhaust assembly includes a first cover plate and a second cover plate connected to each other, and the first cover plate and the second cover plate enclose each other to form the first cavity and the second cavity; The first air inlet is disposed on the first cover plate, and the second air outlet is disposed on either the first cover plate or the second cover plate.

[0011] In one embodiment, the first cover plate includes a first mounting portion, a first bending portion, and a first main body portion connected to each other. The first bending portion is bent so that the first mounting portion and the first main body portion are angled together. The first air inlet is disposed on the first mounting portion. A portion of the first mounting portion forms the inner wall of the first cavity, and a portion of the first main body portion forms the inner wall of the second cavity; and / or The second cover plate includes a second mounting portion, a second bending portion, and a second main body portion that are connected to each other. The second bending portion is bent so that the second mounting portion and the second main body portion are at an angle. A portion of the second mounting portion forms the inner wall of the first cavity, and a portion of the second main body portion forms the inner wall of the second cavity.

[0012] In one embodiment, the exhaust assembly further includes: A third cover plate is disposed between the first cover plate and the exhaust valve. The third cover plate is provided with a through hole, which connects the exhaust port of the exhaust valve with the first air inlet. The first cover plate has a protruding boss that passes through the through hole to limit the opening and closing degree of the valve plate inside the exhaust valve.

[0013] In one embodiment, the third cover plate is provided with a sealing rib on the side facing the exhaust valve, and the sealing rib is used to seal with the exhaust valve.

[0014] The present invention also proposes a compressor, the compressor comprising: cylinder; An exhaust valve, wherein the air inlet of the exhaust valve is connected to the cylinder; and The aforementioned exhaust assembly.

[0015] The present invention also proposes a refrigeration device, which includes the above-mentioned compressor.

[0016] In the technical solution of this application, by setting the exhaust assembly to include a first cavity and a second cavity located around the first cavity, and arranging the second cavity around the exhaust valve, the first cavity and the second cavity form a three-dimensional layout in space. This effectively utilizes the space around the exhaust valve and avoids the problem that conventional exhaust mufflers need to occupy a large installation space in the compressor due to their own structural limitations. On the other hand, the first cavity is connected to the exhaust port on the exhaust valve through the first air inlet, and the second cavity is connected to the first air outlet through the second air inlet. This allows the refrigerant gas to flow through the first cavity and the second cavity in sequence and then be discharged from the second air outlet, forming a multi-stage expansion structure. While ensuring a good silencing effect, this significantly reduces the overall space occupied by the exhaust assembly, thereby solving the technical problem that conventional exhaust mufflers occupy too large an area in a limited internal space. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an exhaust assembly provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the exhaust assembly from another perspective, provided in an embodiment of the present invention. Figure 3 This is an exploded structural diagram of an exhaust assembly provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of an exhaust assembly provided in an embodiment of the present invention; Figure 5 A schematic diagram of the assembly of the partition, the first pipe fitting, and the second pipe fitting provided in an embodiment of the present invention; Figure 6 A schematic diagram of the assembly of the partition, the first pipe fitting, and the second pipe fitting provided in an embodiment of the present invention from another perspective; Figure 7 A schematic diagram of the structure of the second cover plate provided in an embodiment of the present invention; Figure 8 This is a structural schematic diagram of the second cover plate provided in one embodiment of the present invention from another perspective; Figure 9 A schematic diagram of the structure of a first cover plate provided in an embodiment of the present invention; Figure 10 A schematic diagram of the structure of a first cover plate provided in one embodiment of the present invention from another perspective; Figure 11 A schematic diagram of the structure of the third cover plate provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of the exploded structure of a compressor provided according to an embodiment of the present invention.

[0019] Explanation of icon numbers: 1000, Compressor; 100, Exhaust assembly; 1. First cavity; 1A. First air inlet; 1B. First air outlet; 2. Second cavity; 2A. Second air inlet; 2B. Second air outlet; 21. First sub-cavity; 22. Second sub-cavity; 3. Baffle plate; 4. First pipe fitting; 5. Second pipe fitting; 6. Mounting hole; 7. Flow guide channel; 8. Card slot; 81. First card slot; 82. Second card slot; 9. Connecting channels; 10. First cover plate; 101. First mounting part; 102. First bending part; 103. First main body part; 11. Second cover plate; 111. Second mounting part; 112. Second bending part; 113. Second main body part; 12. Third cover plate; 121. Through hole; 13. Boss; 14. Sealing rib; 15. Cylinder; 16. Exhaust valve; 17. Intake assembly; 18. Protrusion.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] In related technologies, the internal space of a compressor is limited. However, due to the limitations of its own structural design, conventional exhaust mufflers often need to occupy a large installation space inside the compressor, resulting in them taking up too much space in the already limited internal space.

[0025] In view of this, this application proposes an exhaust assembly, Figures 1 to 12 These are some embodiments of this application.

[0026] Please see Figures 1 to 3 ,and Figure 7 In some embodiments of this application, the exhaust assembly 100 includes a first cavity 1 and a second cavity 2. One end of the first cavity 1 is provided with a first air inlet 1A, which is used to communicate with the exhaust port on the exhaust valve 16. A first air outlet 1B is provided on one side of the first cavity 1. The second cavity 2 is located on the periphery of the first cavity 1 and is arranged on the periphery of the exhaust valve 16. The second cavity 2 is provided with a second air inlet 2A and a second air outlet 2B, and the second air inlet 2A is connected to the first air outlet 1B.

[0027] In the technical solution of this application, by setting the exhaust assembly 100 to include a first cavity 1 and a second cavity 2 located around the first cavity 1, and arranging the second cavity 2 around the exhaust valve 16, the first cavity 1 and the second cavity 2 form a three-dimensional layout in space, which can effectively utilize the space around the exhaust valve 16 and avoid the problem that conventional exhaust mufflers need to occupy a large installation space in the compressor 1000 due to their own structural limitations. On the other hand, the first cavity 1 is connected to the exhaust port on the exhaust valve 16 through the first air inlet 1A, and the second cavity 2 is connected to the first air outlet 1B through the second air inlet 2A, so that the refrigerant gas flows through the first cavity 1 and the second cavity 2 in sequence and is discharged from the second air outlet 2B, forming a multi-stage expansion structure. While ensuring a good silencing effect, it significantly reduces the overall space occupied by the exhaust assembly 100, thereby solving the technical problem that conventional exhaust mufflers occupy too large an arrangement area in a limited internal space.

[0028] For example, the cross-sectional areas of the first cavity 1 and the second cavity 2 are different, which causes a sudden change in the flow rate and pressure of the refrigerant when it flows through the different cavities, thereby further enhancing the noise reduction performance.

[0029] Please see Figure 4 In some embodiments of this application, a partition 3 is provided inside the second cavity 2 to divide the second cavity 2 into a first sub-cavity 21 and a second sub-cavity 22. The first sub-cavity 21 is connected to the second air inlet 2A, and the second sub-cavity 22 is connected to the second air outlet 2B. The first sub-cavity 21 and the second sub-cavity 22 are interconnected. In this embodiment, the above-mentioned structural arrangement causes the refrigerant gas to enter the first sub-cavity 21 from the second air inlet 2A, and then enter the second sub-cavity 22 through the connecting structure connecting the first sub-cavity 21 and the second sub-cavity 22, and then be discharged from the second air outlet 2B. During this process, the flow path of the refrigerant gas is extended, and a secondary expansion and pressure buffer are formed between the first sub-cavity 21 and the second sub-cavity 22, thereby improving the noise reduction effect of the exhaust assembly 100 without increasing the overall space occupied by the exhaust assembly 100.

[0030] It should be noted that the connection method between the first sub-cavity 21 and the second sub-cavity 22 is not limited. For example, the two can be connected through a through hole in the partition 3, a pipe fitting or other structure, or through the gap between the edge of the partition 3 and the inner wall of the second cavity 2.

[0031] Please see Figures 4 to 6In some embodiments of this application, at least one first pipe 4 is provided on the partition 3. The first pipe 4 is fixedly inserted through the partition 3, and its two ends are respectively located in the first sub-cavity 21 and the second sub-cavity 22. In this embodiment, by providing at least one first pipe 4 on the partition 3 and fixing the first pipe 4 through the partition 3, with its two ends respectively located in the first sub-cavity 21 and the second sub-cavity 22, the refrigerant gas must pass through the narrow channel of the first pipe 4 when flowing from the first sub-cavity 21 to the second sub-cavity 22. Since the cross-sectional area of ​​the first pipe 4 is smaller than that of the first sub-cavity 21 and the second sub-cavity 22, the sudden change in flow velocity and pressure pulsation of the refrigerant gas when flowing through the first pipe 4 are effectively attenuated. At the same time, the sound wave undergoes impedance mismatch and reflection when passing through the first pipe 4, thereby significantly reducing exhaust noise.

[0032] In addition, the first pipe fitting 4 causes local throttling and expansion effects when the refrigerant gas flows through it, which increases the friction loss and eddy current dissipation between the refrigerant gas and the pipe wall of the first pipe fitting 4, further improving the noise reduction effect. Thus, the noise reduction performance is enhanced without increasing the overall space occupied by the exhaust assembly 100.

[0033] In some embodiments of this application, at least one second pipe 5 is provided on the partition 3. The second pipe 5 is curved and located within the first sub-cavity 21, with both ends extending into the second sub-cavity 22. In this embodiment, after the refrigerant gas enters the second sub-cavity 22 from the first sub-cavity 21, at least a portion of the refrigerant gas can further flow through the curved second pipe 5, entering from one end and exiting from the other, and finally being discharged from the second outlet 2B. Because the second pipe 5 is curved, the refrigerant gas continuously changes its flow direction as it flows through the second pipe 5, generating additional local resistance and friction loss. At the same time, the curved pipe wall creates multiple reflections and interferences of sound waves, effectively attenuating the remaining pressure pulsations and exhaust noise.

[0034] In addition, the portion of the second pipe 5 located within the first sub-cavity 21 makes full use of the space on the other side of the partition 3, further improving the noise reduction effect without increasing the overall volume of the exhaust assembly 100.

[0035] In one specific embodiment of this application, a first pipe 4 and a second pipe 5 are simultaneously provided on the partition 3. The first pipe 4 is used to connect the first sub-cavity 21 and the second sub-cavity 22, so that refrigerant gas can flow from the first sub-cavity 21 into the second sub-cavity 22; the second pipe 5 is located in the first sub-cavity 21 and is curved, with its two ends extending into the second sub-cavity 22, so that the refrigerant gas after entering the second sub-cavity 22 can flow through it further to achieve secondary noise reduction.

[0036] In some embodiments of this application, a mounting hole 6 is provided through the partition 3, and the first pipe 4 or the second pipe 5 is fixed to the partition 3 through the mounting hole 6; at least one guide groove 7 is provided on the partition 3, one end of the guide groove 7 extends to the mounting hole 6 and communicates with the mounting hole 6, and the other end of the guide groove 7 extends to the periphery of the partition 3; in this embodiment, the partition 3 is welded to the first pipe 4 or the second pipe 5, and the partition 3 is welded to the inner wall of the second cavity 2; wherein, the guide groove 7 is used to guide the flow of molten solder during the welding process. On the one hand, the molten solder can flow into the mounting hole 6 through the guide groove 7 to fill the gap between the first pipe 4 or the second pipe 5 and the mounting hole 6; on the other hand, the molten solder can flow along the guide groove 7 to the periphery of the partition 3 to fill the gap between the partition 3 and the inner wall of the second cavity 2.

[0037] In some embodiments of this application, the inner sidewall of the second cavity 2 is provided with at least one slot 8, and a portion of the partition 3 is embedded in the slot 8. In this embodiment, the slot 8 can position and fix the partition 3, preventing the partition 3 from shifting or shaking within the second cavity 2, thus ensuring the relative positional accuracy between the partition 3 and the second cavity 2. On the other hand, the slot 8 structure simplifies the assembly process between the partition 3 and the second cavity 2, enabling rapid positioning and fixing without additional fasteners, thereby reducing assembly difficulty and manufacturing costs.

[0038] Furthermore, based on the embodiment where the partition 3 is welded to the inner wall of the second cavity 2, after the partition 3 is embedded in the slot 8, the contact area between the partition 3 and the inner wall of the second cavity 2 increases, which is beneficial for the filling of molten solder during subsequent welding, and further enhances the connection strength and sealing performance.

[0039] Please see Figure 7 In some embodiments of this application, the exhaust assembly 100 further includes a connecting channel 9 disposed between the first cavity 1 and the second cavity 2. One end of the connecting channel 9 is connected to the first air outlet 1B, and the other end is connected to the second air inlet 2A. The cross-sectional area of ​​the connecting channel 9 is smaller than the cross-sectional areas of the first cavity 1 and the second cavity 2. In this embodiment, when the refrigerant gas flows from the first cavity 1 into the second cavity 2 through the connecting channel 9, the refrigerant gas experiences a throttling effect as it flows through the connecting channel 9 because the cross-sectional area of ​​the connecting channel 9 is smaller than the cross-sectional areas of the first cavity 1 and the second cavity 2. This increases the flow rate and attenuates the pressure pulsation. Subsequently, when the gas enters the larger second cavity 2, an expansion effect occurs, forming eddies and dissipating energy, further reducing exhaust noise and thus enhancing the silencing performance of the exhaust assembly 100.

[0040] Please see Figures 8 to 10In some embodiments of this application, the exhaust assembly 100 includes a first cover plate 10 and a second cover plate 11 connected to each other, which enclose a first cavity 1 and a second cavity 2. The first air inlet 1A is disposed on the first cover plate 10, and the second air outlet 2B is disposed on either the first cover plate 10 or the second cover plate 11. In this embodiment, the first cover plate 10 and the second cover plate 11 are connected to each other and enclose a first cavity 1 and a second cavity 2, making the exhaust assembly 100 a split-type structure. Compared to a one-piece molded or independent tank-type muffler, the split-type structure design allows the first cover plate 10 and the second cover plate 11 to be independently processed, facilitating mass production and allowing for flexible adjustment of the shape, size, and volume of the first cavity 1 and the second cavity 2 according to actual needs.

[0041] Furthermore, the structural cooperation between the first cover plate 10 and the second cover plate 11 allows for a compact spatial arrangement of the first cavity 1 and the second cavity 2. Specifically, the second cavity 2 is located around the first cavity 1 and arranged around the exhaust valve 16, making full use of the previously unused space around the exhaust valve 16. This eliminates the need for an additional, large-volume silencer cavity, effectively avoiding the problem of conventional exhaust silencers occupying a large installation space within the compressor 1000 due to their structural limitations. Simultaneously, the first air inlet 1A is located on the first cover plate 10 and can directly connect to the exhaust port of the exhaust valve 16, shortening the refrigerant gas entry path and reducing pressure loss and potential leakage risks caused by intermediate connection structures. The second air outlet 2B can be flexibly selected to be located on either the first cover plate 10 or the second cover plate 11 according to the actual layout requirements inside the compressor 1000, improving the adaptability of the exhaust assembly 100 to different machine structures.

[0042] In summary, the structural arrangement of the first cover plate 10 and the second cover plate 11 enables the exhaust assembly 100 to reduce its overall volume and weight while ensuring good noise reduction effect, thus achieving a lightweight and compact design of the exhaust assembly 100, which is conducive to optimizing the space utilization inside the compressor 1000.

[0043] Please see Figure 7 and Figure 9 In some embodiments of this application, the slot 8 includes a first slot 81 and a second slot 82. The first slot 81 is disposed on the first cover plate 10, and the second slot 82 is disposed on the second cover plate 11. In this embodiment, when the first cover plate 10 and the second cover plate 11 are connected, the first slot 81 and the second slot 82 together limit the partition 3, thereby enhancing the installation stability of the partition 3 and preventing the partition 3 from shifting under the impact of refrigerant airflow.

[0044] For example, a portion of the partition 3 is embedded in the first slot 81 and another portion is embedded in the second slot 82, so that the upper and lower sides or the inner and outer sides of the partition 3 are simultaneously constrained, thereby enhancing the installation stability of the partition 3.

[0045] In some embodiments of this application, multiple first slots 81 are provided on the first cover plate 10. With this arrangement, the multiple first slots 81 can form a foolproof fit with the corresponding structures on the partition plate 3, such as protrusions, notches or edges. That is, the partition plate 3 can be smoothly inserted into each first slot 81 only when it is installed in the correct orientation and position. If the partition plate 3 is installed backwards or its position is offset, it cannot be assembled in place.

[0046] Please see Figures 9 to 10 In some embodiments of this application, the first cover plate 10 includes a first mounting portion 101, a first bending portion 102, and a first main body portion 103 connected to each other. The first bending portion 102 is bent so that the first mounting portion 101 and the first main body portion 103 are angled. The first air inlet 1A is disposed on the first mounting portion 101. A portion of the first mounting portion 101 forms the inner wall of the first cavity 1, and a portion of the first main body portion 103 forms the inner wall of the second cavity 2. In this embodiment, the first cover plate 10 adopts an integral bending structure, so that the first mounting portion 101 and the first main body portion 103 respectively participate in enclosing and forming the first cavity 1 and the second cavity 2, without the need for additional independent parts, thereby significantly simplifying the structure of the exhaust assembly 100.

[0047] Please see Figures 7 to 8 In some embodiments of this application, the second cover plate 11 includes a second mounting portion 111, a second bending portion 112, and a second main body portion 113 connected to each other. The second bending portion 112 is bent so that the second mounting portion 111 and the second main body portion 113 are angled. A portion of the second mounting portion 111 forms the inner wall of the first cavity 1, and a portion of the second main body portion 113 forms the inner wall of the second cavity 2. In this embodiment, the second cover plate 11 adopts an integral bending structure, so that the second mounting portion 111 and the second main body portion 113 respectively participate in enclosing and forming the first cavity 1 and the second cavity 2, without the need for additional independent parts, thereby significantly simplifying the structure of the exhaust assembly 100.

[0048] For example, in the second cavity 2, a portion of the first main body 103 and a portion of the second main body 113 are recessed, and the recessed portions of the first main body 103 and the second main body 113 are opposite to each other, together forming the second cavity 2. Specifically, when the first cover plate 10 and the second cover plate 11 are connected to each other, the recessed areas of the first main body 103 and the recessed areas of the second main body 113 are aligned to form a closed cavity space, which is the second cavity 2. The recessed structure design gives the second cavity 2 a certain volume, and by adjusting the depth and shape of the recess, the volume of the second cavity 2 can be flexibly controlled to adapt to different noise reduction requirements.

[0049] For the first cavity 1, the first mounting portion 101 is plate-shaped, and a portion of the second mounting portion 111 is recessed. The recessed portions of the first mounting portion 101 and the second mounting portion 111 are opposite to each other, and together they enclose the first cavity 1. Specifically, the first mounting portion 101 is a plate structure, opposite to the recessed area of ​​the second mounting portion 111, and the enclosed space formed between the plate and the recess is the first cavity 1. This structure makes the first cavity 1 relatively flat, which is convenient for placement near the outlet of the exhaust valve 16, and the plate-shaped first mounting portion 101 facilitates the assembly of the exhaust assembly 100 and the exhaust valve 16.

[0050] By having the recessed portion of the first main body 103 and the recessed portion of the second main body 113 meet to enclose and form the second cavity 2, and by having the plate-shaped arrangement of the first mounting portion 101 meet to enclose and form the first cavity 1, the first cavity 1 and the second cavity 2 are structurally integrated in a compact manner.

[0051] Please see Figure 2 In some embodiments of this application, the exhaust assembly 100 further includes a third cover plate 12, which is disposed between the first cover plate 10 and the exhaust valve 16. The third cover plate 12 has a through hole 121, which connects the exhaust port of the exhaust valve 16 with the first air inlet 1A. The first cover plate 10 has a protruding boss 13, which passes through the through hole 121 to limit the opening and closing degree of the valve plate inside the exhaust valve 16. In this embodiment, through this arrangement, the third cover plate 12 realizes the connection and sealing between the exhaust port and the first air inlet 1A, while the boss 13 limits the opening and closing degree of the valve plate to prevent the valve plate from opening too wide and causing impact damage.

[0052] In some embodiments of this application, the first cover plate 10, the second cover plate 11, and the third cover plate 12 are all sheet metal structures.

[0053] Please see Figure 3In some embodiments of this application, the second cover plate 11 is further provided with a plurality of protrusions 18, which melt during the welding of the first cover plate 10, the second cover plate 11 and the third cover plate 12 to improve the connection strength. With this arrangement, the protrusions 18 melt and fill the contact interface between the first cover plate 10 and the second cover plate 11, and between the second cover plate 11 and the third cover plate 12 during welding, thereby increasing the welding contact area and the bonding strength.

[0054] Please see Figure 11 In some embodiments of this application, the third cover plate 12 is provided with a sealing rib 14 on the side facing the exhaust valve 16, and the sealing rib 14 is used to seal with the exhaust valve 16; in this embodiment, the sealing rib 14 forms a tight contact with the surface of the exhaust valve 16, effectively preventing refrigerant gas leakage and ensuring exhaust volume and noise reduction effect.

[0055] In some embodiments of this application, the sealing rib 14 is arranged in a ring shape, and its cross-sectional shape can be semi-circular or rectangular to adapt to the mounting surface of the exhaust valve 16, so as to ensure that the sealing rib 14 can maintain reliable sealing contact with the exhaust valve 16 during the operation of the compressor.

[0056] Please see Figure 12 This application also proposes a compressor 1000, including a cylinder 15, an exhaust valve 16 and an exhaust assembly 100. The air inlet of the exhaust valve 16 is connected to the cylinder 15. The exhaust assembly 100 is as described above. Since the compressor 1000 adopts all the technical solutions of the above embodiments, it has at least the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0057] The present invention also proposes a refrigeration device, which includes the compressor. The specific structure of the compressor is as described in the above embodiments. Since the refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0058] Specifically, the refrigeration device described in this application is a vehicle-mounted refrigerator.

[0059] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An exhaust assembly for a compressor, characterized in that, include: The first cavity has a first air inlet at one end, which is used to communicate with the exhaust port on the exhaust valve, and a first air outlet is provided on one side of the first cavity. as well as The second cavity is located on the periphery of the first cavity and is arranged on the periphery of the exhaust valve. The second cavity is provided with a second air inlet and a second air outlet, and the second air inlet is connected to the first air outlet.

2. The exhaust assembly as described in claim 1, characterized in that, The second cavity is provided with a partition to divide the second cavity into a first sub-cavity and a second sub-cavity. The first sub-cavity is connected to the second air inlet, and the second sub-cavity is connected to the second air outlet. The first sub-cavity and the second sub-cavity are interconnected.

3. The exhaust assembly as described in claim 2, characterized in that, At least one first pipe is provided on the partition, the first pipe being fixedly inserted through the partition, with its two ends located in the first sub-cavity and the second sub-cavity, respectively; and / or At least one second pipe is provided on the partition plate. The second pipe is bent and located in the first sub-cavity. Both ends of the second pipe extend into the second sub-cavity.

4. The exhaust assembly as described in claim 3, characterized in that, The partition plate is provided with a through mounting hole, and the first pipe or the second pipe is fixed to the partition plate through the mounting hole; The partition plate is provided with at least one flow guide groove, one end of the flow guide groove extends to the mounting hole and communicates with the mounting hole, and the other end of the flow guide groove extends to the periphery of the partition plate.

5. The exhaust assembly as described in claim 2, characterized in that, The inner wall of the second cavity is provided with at least one slot, and a portion of the partition is embedded in the slot.

6. The exhaust assembly as claimed in claim 1, characterized in that, The exhaust assembly further includes a connecting channel disposed between the first cavity and the second cavity, one end of the connecting channel being connected to the first air outlet and the other end being connected to the second air inlet; The cross-sectional area of ​​the connecting channel is smaller than the cross-sectional areas of the first cavity and the second cavity.

7. The exhaust assembly as described in any one of claims 1 to 6, characterized in that, The exhaust assembly includes a first cover plate and a second cover plate connected to each other, and the first cover plate and the second cover plate enclose each other to form the first cavity and the second cavity; The first air inlet is disposed on the first cover plate, and the second air outlet is disposed on either the first cover plate or the second cover plate.

8. The exhaust assembly as claimed in claim 7, characterized in that, The first cover plate includes a first mounting portion, a first bending portion, and a first main body portion connected to each other. The first bending portion is bent so that the first mounting portion and the first main body portion are angled. The first air inlet is disposed on the first mounting portion. A portion of the first mounting portion forms the inner wall of the first cavity, and a portion of the first main body portion forms the inner wall of the second cavity; and / or The second cover plate includes a second mounting portion, a second bending portion, and a second main body portion that are connected to each other. The second bending portion is bent so that the second mounting portion and the second main body portion are at an angle. A portion of the second mounting portion forms the inner wall of the first cavity, and a portion of the second main body portion forms the inner wall of the second cavity.

9. The exhaust assembly as claimed in claim 7, characterized in that, The exhaust assembly also includes: A third cover plate is disposed between the first cover plate and the exhaust valve. The third cover plate is provided with a through hole, which connects the exhaust port of the exhaust valve with the first air inlet. The first cover plate has a protruding boss that passes through the through hole to limit the opening and closing degree of the valve plate inside the exhaust valve.

10. The exhaust assembly as claimed in claim 9, characterized in that, The third cover plate has a sealing rib on the side facing the exhaust valve, and the sealing rib is used to seal with the exhaust valve.

11. A compressor, characterized in that, include: cylinder; An exhaust valve, wherein the air inlet of the exhaust valve is connected to the cylinder; and The exhaust assembly as described in any one of claims 1 to 10.

12. A refrigeration device, characterized in that, Includes the compressor as described in claim 11.

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