Mufflers, compressors and household appliances
By designing a muffler with rectifier tube and shunt hole in household appliances, using pressure differential reflow lubricant, the compressor exhaust noise and lubrication problems are solved, and the heat exchange efficiency and operating stability are improved.
Patent Information
- Application Number
- CN202210656308.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-10
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2042-06-10
AI Technical Summary
High-temperature and high-pressure gas is generated when the household appliance compressor is exhausted, resulting in vibration and noise. The oil-containing refrigerant affects the condensation and evaporation heat transfer efficiency, and the compressor cannot be lubricated in time, affecting its efficient and stable operation.
A muffler is designed, including a housing, an inlet and an outlet. A rectifier tube extending into the interior of the cavity is provided at the inlet. A plurality of diversion holes are provided on the rectifier tube to make the lubricating oil flow back to the compressor when the compressor is shut down. In the compressor, avoid oil-containing gases entering the condenser to ensure timely lubrication and efficient operation of the compressor.
It effectively reduces pulse noise, improves heat exchange efficiency, ensures efficient and stable operation of the compressor, and simplifies the design of the structure without additional oil return.
Smart Images
Figure CN114934892B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of household appliances, and more specifically, to a muffler, a compressor having the muffler, and a household appliance having the compressor. Background Art
[0002] At present, the exhaust gas of household appliance compressors is high-temperature and high-pressure gas with a high air flow velocity. When the compressor exhausts, it produces large vibration and noise, which directly affects the comprehensive performance of the compressor; therefore, mufflers for compressors came into being.
[0003] However, the compressor exhaust gas is superheated steam, that is, a mixture of refrigerant steam and some lubricating oil, which is transported to the condenser through a pipeline. The oil-containing refrigerant affects the condensation and evaporation heat transfer, resulting in reduced heat exchange efficiency. Moreover, when the system oil return is blocked, the compressor cannot be lubricated in time, which is not conducive to the efficient and stable operation of the compressor.
[0004] Therefore, how to provide a muffler, a compressor and a household appliance that can ensure timely oil return of the compressor has become a problem that technicians in this field need to solve urgently. Summary of the invention
[0005] The embodiments of the present application provide a muffler, a compressor and a household appliance, which are at least used to solve the problem of how to achieve oil return and silence at the same time.
[0006] The silencer provided in the embodiment of the present application includes a shell, an inlet and an outlet. The shell is provided with a cavity. The inlet is provided at the first end of the shell and communicates with the inside of the cavity. The inlet is provided with a rectifier tube extending into the inside of the cavity, and the rectifier tube is provided with a plurality of diverter holes. The outlet is provided at the second end of the shell and communicates with the cavity.
[0007] In the muffler of the present application, a rectifier tube extending into the interior of the cavity is provided at the inlet, and a plurality of diverter holes are provided on the rectifier tube. The plurality of diverter holes can divide the exhaust gas into small airflows, which can effectively reduce the pulse noise on the one hand; on the other hand, the momentum of the small airflow is relatively low, and when it hits the shell, it is conducive to the separation of more refrigerant and lubricating oil. When the compressor is stopped, the pressure on the outlet side of the muffler is greater than the pressure on the inlet side of the muffler. The lubricating oil will be forced to flow to the inlet side due to the pressure difference inside the cavity and accumulate. When the accumulated oil is higher than the diverter hole, it will flow back to the compressor through the inlet, which can prevent the oil-containing mixed gas from being transported to the condenser through the pipeline. The oil-containing refrigerant affects the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, and ensuring that the compressor is lubricated in time to ensure the efficient and stable operation of the compressor.
[0008] In some embodiments, the first end is opposite to the second end, and in the direction from the first end to the second end, the center of the inlet is staggered with the center of the outlet. In this way, the muffler does not need to be provided with an additional oil return structure, but can use the left and right pressure difference when the compressor is stopped to allow the lubricating oil to flow back into the compressor through the diverter hole and the inlet, thereby ensuring that the compressor can be lubricated in time and the compressor can run efficiently and smoothly.
[0009] In some embodiments, in the radial direction of the shell, the center of the inlet is lower than the center of the outlet. In this way, the muffler does not need to be provided with an additional oil return structure, but can use the left and right pressure difference when the compressor is stopped to allow the lubricating oil to flow back into the compressor through the diverter hole and the inlet, thereby ensuring that the compressor can be lubricated in time and the compressor can run efficiently and smoothly.
[0010] In some embodiments, the aperture of the diverter hole is greater than or equal to 0.5 mm and less than or equal to 4 mm. The aperture of the diverter hole is greater than or equal to 0.5 mm and less than or equal to 4 mm, which can not only prevent the resistance of the fluid from passing through from being too large, ensure the fluid passing efficiency, and reduce the processing difficulty, but also the fine airflow divided can increase the separation of the refrigerant and the lubricating oil, making the subsequent oil return smoother.
[0011] In some embodiments, the muffler further includes at least one baffle, which is disposed in the cavity and has a gap with the inner wall of the cavity, and the gap is for the fluid to pass through. The baffle installed inside the muffler can effectively extend the separation distance between the refrigerant and the lubricating oil, so that the separation of the two is more sufficient. On the one hand, the oil can be fully returned later to ensure the efficient and stable operation of the compressor. On the other hand, the oil-containing refrigerant is prevented from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency.
[0012] In some embodiments, the number of the baffles is multiple, and the multiple baffles are staggered in the cavity to form a serpentine channel between the baffles and the outlet. The fine airflow divided by the diversion hole has a low momentum, and when passing through the serpentine channel, it will inevitably hit the baffle. The collision process is conducive to the separation of more refrigerant and lubricating oil, making the separation of the two more complete. On the one hand, the oil can be fully returned later to ensure the efficient and stable operation of the compressor. On the other hand, it prevents the oil-containing refrigerant from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency.
[0013] In some embodiments, the shell includes a first side and a second side located between the first end and the second end; a portion of the baffle extends from the first side toward the second side and forms the gap with the second side, and another portion of the baffle extends from the second side toward the first side and forms the gap with the first side. The gaps between the baffles and the inner wall of the shell are staggered up and down so that the fine airflows divided by the diverter holes hit the baffles during the movement, which is conducive to separating more refrigerant and lubricating oil, making the separation of the two more complete. On the one hand, the oil can be fully returned later to ensure the efficient and stable operation of the compressor. On the other hand, it is prevented that the oil-containing refrigerant affects the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency.
[0014] In certain embodiments, when the first side is the lower side of the shell, an oil return hole is provided at the junction of the baffle located on the first side and the inner wall of the cavity, and the oil return hole is used to supply oil. When the compressor is stopped, the pressure on the outlet side of the muffler is greater than the pressure on the inlet side of the muffler. The lubricating oil will be forced to flow to the inlet side through the oil return hole due to the pressure difference inside the cavity and accumulate. When the accumulated oil is higher than the diverter hole, it will flow back to the compressor through the rectifier tube and the inlet, which can not only prevent the oil-containing mixed gas from being transported to the condenser through the pipeline, and the oil-containing refrigerant from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, but also ensure that the compressor can be lubricated in time, and ensure the efficient and stable operation of the compressor.
[0015] In some embodiments, the muffler further includes an oil return capillary, which passes through the side wall of the shell and is used to connect the cavity to output the refluxed oil. The muffler of the present application uses the oil return capillary to return the lubricating oil to the compressor, which can not only realize the reflux when the compressor is stopped, but also realize the reflux when the compressor is working. The reflux is more sufficient, and it can also better ensure that the compressor can be lubricated in time, ensuring the efficient and stable operation of the compressor.
[0016] The compressor provided in the embodiment of the present application includes a shell and the muffler described in any one of the above embodiments, and the muffler is installed in the shell.
[0017] In the muffler of the compressor of the present application, a rectifier tube extending into the interior of the cavity is provided at the inlet, and a plurality of diverter holes are provided on the rectifier tube. The plurality of diverter holes can divide the exhaust gas into small airflows, which can effectively reduce the pulse noise on the one hand; on the other hand, the momentum of the small airflow is relatively low, and when it hits the shell, it is conducive to the separation of more refrigerant and lubricating oil. When the compressor is stopped, the pressure on the outlet side of the muffler is greater than the pressure on the inlet side of the muffler. The lubricating oil will be forced to flow to the inlet side due to the pressure difference inside the cavity and accumulate. When the accumulated oil is higher than the diverter hole, it will flow back to the compressor through the inlet, which can prevent the oil-containing mixed gas from being transported to the condenser through the pipeline. The oil-containing refrigerant affects the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, and ensuring that the compressor is lubricated in time to ensure the efficient and stable operation of the compressor.
[0018] A household appliance provided in an embodiment of the present application includes the silencer described in any one of the above embodiments.
[0019] Another household appliance provided in an embodiment of the present application includes the compressor of the above embodiment.
[0020] In the silencer of the household appliance of the present application, a rectifier tube extending into the interior of the cavity is provided at the inlet, and a plurality of diverter holes are provided on the rectifier tube. The plurality of diverter holes can divide the exhaust gas into small airflows, which can effectively reduce the pulse noise on the one hand; on the other hand, the momentum of the small airflow is relatively low, and when it hits the shell, it is conducive to the separation of more refrigerant and lubricating oil. When the compressor stops, the pressure on the outlet side of the muffler is greater than the pressure on the inlet side of the muffler. The lubricating oil will be forced to flow to the inlet side due to the pressure difference inside the cavity and accumulate. When the accumulated oil is higher than the diverter hole, it will flow back to the compressor through the inlet, which can prevent the oil-containing mixed gas from being transported to the condenser through the pipeline. The oil-containing refrigerant affects the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, and ensuring that the compressor is lubricated in time, ensuring the efficient and stable operation of the compressor.
[0021] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0023] Figure 1 is a schematic diagram of the external structure of a muffler in one embodiment of the present application;
[0024] Figure 2 yes Figure 1 The internal structure diagram of the muffler shown;
[0025] Figure 3 is a schematic diagram of the internal structure of a muffler in another embodiment of the present application;
[0026] Figure 4 is a schematic diagram of the external structure of a muffler in another embodiment of the present application;
[0027] Figure 5 yes Figure 4 The internal structure diagram of the muffler shown;
[0028] Figure 6 yes Figure 5 A schematic structural diagram of a baffle located on a first side of the muffler shown;
[0029] Figure 7 is a schematic diagram of the internal structure of a muffler in another embodiment of the present application;
[0030] Figure 8 is a schematic diagram of the structure of a compressor in certain embodiments of the present application;
[0031] Fig. 9 is a schematic diagram of the structure of a household appliance in certain embodiments of the present application;
[0032] Fig.10 It is a schematic diagram of the structure of a household appliance in some embodiments of the present application.
[0033] Description of main component symbols:
[0034] Household appliances 1,000;
[0035] Compressor 100; muffler 10; housing 11, cavity 111, first end 113, second end 115, first side 117, second side 119; inlet 13; outlet 15; rectifier tube 17, diverter hole 171; baffle 18, first baffle 1811, second baffle 183, gap 180, oil return hole 185; oil return capillary 19; housing 20;
[0036] Condenser 200; evaporator 300; regenerator 400, throttling component 500; anti-dew pipe 600; dry filter 700. DETAILED DESCRIPTION
[0037] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.
[0038] In the description of the embodiments of the present application, it is worth mentioning that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application 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 cannot be understood as a limitation on the embodiments of the present application. Features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present application, "multiple" means two or more, unless otherwise clearly defined.
[0039] In the description of the implementation methods of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the implementation methods of the present application can be understood according to specific circumstances.
[0040] In the embodiments of the present application, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0041] The disclosure below provides many different embodiments or examples to realize different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. The embodiments of the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. The embodiments of the present application provide various specific processes and examples of materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.
[0042] See also Figure 1 , Figure 2 , Figure 5 and Figure 7 The silencer 10 provided in the embodiment of the present application includes a shell 11, an inlet 13 and an outlet 15. The shell 11 is provided with a cavity 111. The inlet 13 is provided at the first end 113 of the shell 11 and communicates with the interior of the cavity 111. A rectifier tube 17 extending into the interior of the cavity 111 is provided at the inlet 13, and a plurality of diversion holes 171 are provided on the rectifier tube 17. The outlet 15 is provided at the second end 115 of the shell 11 and communicates with the cavity 111. The shell 11 can be a copper tube tank.
[0043] Generally, the silencer is a flared pipe fitting installed between the compressor exhaust and the condenser, which can reduce the pulse noise of the compressor exhaust. However, for high-pressure refrigerant, the impact sound caused by the exhaust scouring the pipe body cannot be avoided if only the flared pipe fitting is used. Existing compressors usually contain excess oil. The installation of a reservoir on the evaporator outlet or return air pipe fitting has an oil return function, but the reservoir installed on the evaporator outlet returns the oil to the evaporator. Even if the reservoir is installed on the return air pipe fitting, it cannot avoid the storage of a large amount of oil in the evaporator. The lubricating oil significantly increases the heat exchange resistance in the evaporator and reduces the heat exchange efficiency of the evaporator.
[0044] In the muffler 10 of the present application, a rectifier tube 17 extending into the cavity 111 is provided at the inlet 13, and a plurality of diverter holes 171 are provided on the rectifier tube 17. The plurality of diverter holes 171 can divide the exhaust gas into small airflows, which can effectively reduce the pulse noise on the one hand; on the other hand, the momentum of the small airflow is low, and when it hits the tank body (shell 11), it is conducive to the separation of more refrigerant and lubricating oil. When the compressor 100 is stopped, the pressure on the side of the outlet 15 of the muffler 10 is greater than that of the muffler 10. The pressure on the side of the inlet 13 of the chamber 111 is such that the lubricating oil will be forced to flow to the side of the inlet 13 due to the pressure difference inside the cavity 111 and accumulate. When the accumulated oil is higher than the diverter hole 171, it will flow back to the compressor 100 through the rectifier tube 17 and the inlet 13, which can not only prevent the oil-containing mixed gas from being transported to the condenser through the pipeline, and the oil-containing refrigerant from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, but also ensure that the compressor 100 can be lubricated in time, and ensure that the compressor 100 can run efficiently and smoothly. Therefore, the silencer 10 of the present application has a simple structure and low cost, and integrates the silencer and oil return functions, which can effectively reduce the exhaust pulse sound, and can also prevent a large amount of oil from entering the condenser and evaporator, and lock the oil of the compressor 100 before heat exchange, thereby improving the heat exchange efficiency.
[0045] The present application is further described in detail below in conjunction with the accompanying drawings.
[0046] First embodiment
[0047] See also Figure 1 and Figure 2 , the first end 113 and the compressor 100 ( Fig. 9 or Fig.10 The second end 115 is connected to the exhaust port of the condenser 200 ( Fig. 9 or Fig.10 In some examples, the first end 113 is opposite to the second end 115, and in the direction from the first end 113 to the second end 115, the center of the inlet 13 is staggered with the center of the outlet 15. In other words, in the length direction of the shell 11, the center of the inlet 13 is not in a straight line with the center of the outlet 15. Specifically, when the muffler 10 is installed in the compressor 100 ( Figure 8 ), or when it is assembled into the refrigeration system 1000 as a component of the refrigeration system 1000 ( Fig. 9As shown in the figure, in the radial direction of the shell 11, the center of the inlet 13 is located lower than the center of the outlet 15. More specifically, the shell 11 includes a first side 117 and a second side 119 located between the first end 113 and the second end 115, the first side 117 being the lower side, the second side 119 being the upper side opposite to the first side 117, the center of the inlet 13 and the center of the outlet 15 being arranged on both sides of the long axis OO1 of the shell 11, and the center of the inlet 13 is closer to the first side 117 than the center of the outlet 15. The liquid level difference between the inlet 13 and the outlet 15 makes it unnecessary to set up an additional oil return structure for the muffler 10, but the lubricating oil can enter the rectifier tube through the diverter hole 171 by the left and right pressure difference when the compressor 100 is stopped, and then flow back to the compressor 100 through the inlet 13, thereby ensuring that the compressor 100 can be lubricated in time and the compressor 100 can run efficiently and smoothly.
[0048] In some examples, the opening size of the inlet 13 is the same as the opening size of the outlet 15. In other examples, the opening size of the inlet 13 is different from the opening size of the outlet 15. The opening size of the inlet 13 may be larger than the opening size of the outlet 15, or the opening size of the inlet 13 may be smaller than the opening size of the outlet 15. The cross-sectional shapes of the inlet 13 and the outlet 15 are not limited and may be circular, square, oval, etc.
[0049] Please continue reading Figure 1 and Figure 2 In some examples, there are multiple diverter holes 171 on the rectifier tube 17, and the multiple diverter holes 171 are distributed on the side wall of the rectifier tube 17. The aperture of each diverter hole 171 is greater than or equal to 0.5 mm and less than or equal to 4 mm. For example, the aperture of the diverter hole 171 can be any one of 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.4 mm, 1.8 mm, 1.9 mm, 2.4 mm, 2.8 mm, 2.9 mm, 3.2 mm, 3.4 mm, 3.5 mm, 3.6 mm, 3.8 mm, and 4.0 mm, or any value between any two values. When the aperture of the diverter hole 171 is less than 0.5mm, the resistance of the fluid passing through will be large, affecting the passing efficiency, and also increasing the difficulty of processing the rectifier tube 17; and when the aperture of the diverter hole 171 is greater than 4mm, the airflow divided by the diverter hole 171 is not fine enough to increase the separation of the refrigerant and the lubricating oil. Therefore, the aperture of each diverter hole 171 is greater than or equal to 0.5mm and less than or equal to 4mm, which can not only prevent the resistance of the fluid from passing through from being too large, ensure the passing efficiency of the fluid, and reduce the difficulty of processing, but also the fine airflow divided can increase the separation of the refrigerant and the lubricating oil, making the subsequent oil return smoother.
[0050] In one example, the apertures of all the diverter holes 171 are the same, which is convenient for processing. In another example, the apertures of some diverter holes 171 are the same, while the apertures of some diverter holes 171 are different, so that the cross-sections of the separated small airflows are also inconsistent, which can further enhance the separation effect of the refrigerant and the lubricating oil.
[0051] When the muffler 10 of the first embodiment of the present application is used to conduct a comparative muffler test with the existing muffler (using only flared pipe fittings), the test scheme is: 1Mpa nitrogen is passed through the inlet 13, and the sound is listened to in the muffler room; during the test, the existing muffler emits a "hissing" harsh flushing sound, while the muffler 10 of the present embodiment emits a low "hissing" sound; at a vertical distance of 0.5m from the tank body of the existing muffler, the measured sound power is 39.8dB, while at a vertical distance of 0.5m from the tank body of the muffler 10 of the present embodiment, the measured sound power is 34.6dB. The single-unit test results show that the muffler 10 of the present embodiment can effectively reduce the noise of the compressor 100 when it is exhausted.
[0052] When the muffler 10 of the first embodiment of the present application is used to conduct a comparative oil return test with the existing muffler (only using flared pipe fittings), two types of mufflers are installed on the same refrigerator prototype, using R290 compressor 100 and 55gR290. After running for one week, the muffler is disassembled and the muffler is cut open. A large amount of oil remains in the tank body of the existing muffler, while the tank body of the muffler 10 of this embodiment has less residual oil. Under the same oil discharge conditions, it can be confirmed that the oil taken away by the exhaust of the compressor 100 exceeds the oil storage capacity of the muffler 10, while the excess oil of the existing muffler is carried to the condenser and evaporator through the exhaust, and the inlet 13 and the outlet 15 of the muffler 10 of this embodiment have a liquid level difference, and the oil is more likely to return to the compressor 100 through the rectifier tube 17, so there is less residual oil in the tank body.
[0053] It can be clearly seen from the above silencer test results and oil return test results that the silencer 10 of this embodiment has better silencer effect and better oil return effect than the existing silencer.
[0054] Second embodiment
[0055] See also Figure 3The structure and functional effects of the muffler 10 of this embodiment are basically the same as those of the muffler 10 of the first embodiment, except that the muffler 10 of this embodiment may also include an oil return capillary 19, which passes through the side wall of the shell 11 and is used to connect the cavity 111 to output the refluxed oil. Specifically, the oil return capillary 19 is arranged on the outside of the shell 11, that is, it is located outside the cavity 111, but is connected to the cavity 111 after passing through the side wall of the shell 11. The oil return capillary 19 can return the lubricating oil to the compressor 100 to ensure that it can be lubricated in time and ensure that the compressor 100 runs efficiently and smoothly. Compared with the first embodiment in which the return oil in the muffler 10 utilizes the pressure difference when the compressor 100 is shut down to force the lubricating oil into the rectifier tube 17 and then return to the compressor 100, the muffler 10 of the present application utilizes the return oil capillary 19 to return the lubricating oil to the compressor 100, which can achieve reflux not only when the compressor 100 is shut down, but also when the compressor 100 is working. The reflux is more sufficient and can better ensure that the compressor 100 can be lubricated in time, thereby ensuring the efficient and stable operation of the compressor 100.
[0056] Third embodiment
[0057] Please also read Figure 4 and Figure 5 The structure and functional effects of the silencer 10 of the embodiment of the present application are basically the same as those of the silencer 10 of the first embodiment, except that the silencer 10 of the present embodiment may further include at least one baffle 18, which is disposed in the cavity 111 and has a gap 180 with the inner wall of the cavity 111, and the gap 180 is for fluid to pass through. The baffle 18 installed inside the silencer 10 can effectively extend the separation distance between the refrigerant and the lubricating oil, making the separation of the two more sufficient. On the one hand, the oil can be fully returned later to ensure the efficient and stable operation of the compressor 100, and on the other hand, the oil-containing refrigerant is prevented from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency.
[0058] In one example, the number of baffles 18 may be one. In another example, the number of baffles 18 may be multiple, and the multiple baffles 18 are staggered in the cavity 111 to form a serpentine channel (such as Figure 5As shown by the arrow in the figure). For example, in the muffler 10 of the present embodiment, the number of baffles 18 is two, namely, the first baffle 181 and the second baffle 183. The fine airflow divided by the diverter hole 171 has a low momentum, and when passing through the serpentine channel, it is bound to hit the first baffle 181 and the second baffle 183. The collision process is conducive to the separation of more refrigerant and lubricating oil, making the separation of the two more complete. On the one hand, the oil can be fully returned later to ensure the efficient and stable operation of the compressor 100. On the other hand, it is prevented that the oil-containing refrigerant affects the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency.
[0059] Specifically, a portion of the baffle 18 extends from the first side 117 to the second side 119 and forms a gap 180 with the second side 119, and another portion of the baffle 18 extends from the second side 119 to the first side 117 and forms a gap 180 with the first side 117. More specifically, the first baffle 18 extends from the first side 117 to the second side 119 and forms a gap 180 with the second side 119, and the second baffle 183 extends from the second side 119 to the first side 117 and forms a gap 180 with the first side 117. The gaps 180 between the baffle 18 and the inner wall of the shell 11 are arranged in an up-and-down staggered manner, so that the fine airflow divided by the diverter hole 171 hits the baffle 18 during the process of traveling, which is conducive to separating more refrigerant and lubricating oil, making the separation of the two more complete. On the one hand, the oil can be fully returned later to ensure the efficient and stable operation of the compressor 100, and on the other hand, the oil-containing refrigerant is prevented from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency.
[0060] Please combine Figure 6 An oil return hole 185 is provided at the junction of the first baffle 181 located on the first side 117 and the inner wall of the cavity 111, and the oil return hole 185 is used to supply oil. Specifically, the oil return hole 185 can be provided on the first baffle 181, and in this case, the oil return hole 185 can be a notch on the first baffle 181. Alternatively, the oil return hole 185 can also be provided on the inner wall of the cavity 111, and in this case, the oil return hole 185 can be a groove on the inner wall of the cavity 111. Alternatively, a part of the oil return hole 185 is provided on the first baffle 18, and the other part is provided on the inner wall of the cavity 111. In this case, a notch is provided on the first baffle 181, and a groove is provided on the inner wall of the cavity 111, and the notch and the groove correspond to and together form the oil return hole 185.
[0061] When the compressor 100 is shut down, the pressure on the outlet 15 side of the muffler 10 is greater than the pressure on the inlet 13 side of the muffler 10. The lubricating oil will be pressed through the oil return hole 185 to flow to the inlet 13 side due to the pressure difference inside the cavity 111 and accumulate. When the accumulated oil is higher than the diverter hole 171, it will flow back to the compressor 100 through the rectifier tube 17 and the inlet 13, which can not only prevent the oil-containing mixed gas from being transported to the condenser through the pipeline, and the oil-containing refrigerant from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, but also ensure that the compressor 100 can be lubricated in time, and ensure the efficient and stable operation of the compressor 100.
[0062] When the muffler 10 of the third embodiment of the present application is used to conduct a comparative muffler test with the existing muffler (using only flared pipe fittings), the test scheme is as follows: 1Mpa nitrogen is passed through the inlet 13, and the sound is listened to in the muffler room; during the test, the existing muffler emits a "hissing" harsh flushing sound, while the muffler 10 of the third embodiment of the present application emits a low "hissing" sound; the sound power at a vertical distance of 0.5m from the tank body of the existing muffler 10 is 39.8dB, while the sound power at a vertical distance of 0.5m from the tank body of the present embodiment is 34.1dB. The single-unit test results show that the muffler 10 of the present embodiment can effectively reduce the noise of the compressor 100 when it is exhausted.
[0063] When the muffler 10 of the first embodiment of the present application is used to conduct a comparative oil return test with the existing muffler (using only the flared pipe fitting), two mufflers are installed on the same refrigerator prototype, using the R290 compressor 100 and 55gR290, and the mufflers are disassembled and cut open after running for one week. A large amount of oil remains in the tank of the existing muffler, while the tank of the muffler 10 of the present embodiment has almost no residual oil.
[0064] It can be clearly seen from the above silencer test results and oil return test results that the silencer 10 of this embodiment has better silencer effect and better oil return effect than the existing silencer.
[0065] Fourth embodiment
[0066] See also Figure 7The structure and functional effects of the muffler 10 of this embodiment are basically the same as those of the muffler 10 of the third embodiment, except that the muffler 10 of this embodiment may also include an oil return capillary 19, which is passed through the side wall of the shell 11 and is used to connect the cavity 111 to output the refluxed oil. Specifically, the oil return capillary 19 is arranged on the outside of the shell 11, that is, outside the cavity 111, and is connected to the cavity 111 after passing through the side wall of the shell 11. The oil return capillary 19 can return the lubricating oil to the compressor 100 to ensure that it can be lubricated in time and ensure that the compressor 100 runs efficiently and smoothly. Compared with the third embodiment in which the return oil in the muffler 10 utilizes the pressure difference when the compressor 100 is shut down to force the lubricating oil into the rectifier tube 17 and then return to the compressor 100, the muffler 10 of the present application utilizes the oil return capillary 19 to return the lubricating oil to the compressor 100, which can achieve reflux not only when the compressor 100 is shut down, but also when the compressor 100 is working. The reflux is more sufficient and can better ensure that the compressor 100 can be lubricated in time, thereby ensuring the efficient and stable operation of the compressor 100.
[0067] See also Figure 8 The compressor 100 provided in the embodiment of the present application includes a housing 20 and a muffler 10 of any one of the above embodiments, and the muffler 10 is installed in the housing 20. The compressor 100 can be a compressor 100 on any household appliance 1000, such as a compressor 100 on a household appliance 1000 having a refrigeration system. More specifically, the compressor 100 can be a compressor 100 applied to a refrigerator, or a compressor 100 applied to an air conditioner, which is not limited here.
[0068] Please combine Figure 1 and Figure 2 In the muffler 10 of the compressor 100 of the present application, a rectifier tube 17 extending into the cavity 111 is provided at the inlet 13, and a plurality of diverter holes 171 are provided on the rectifier tube 17. The plurality of diverter holes 171 can divide the exhaust gas into small airflows, which can effectively reduce the pulse noise on the one hand; on the other hand, the momentum of the small airflow is low, and when it hits the shell 11, it is conducive to the separation of more refrigerant and lubricating oil. When the compressor 100 is stopped, the pressure on the side of the outlet 15 of the muffler 10 is greater than the pressure on the side of the inlet 13 of the muffler 10. The lubricating oil will be forced to flow to the side of the inlet 13 due to the pressure difference inside the cavity 111 and accumulate. When the accumulated oil is higher than the diverter hole 171, it will flow back to the compressor 100 through the inlet 13, which can prevent the oil-containing mixed gas from being transported to the condenser through the pipeline. The oil-containing refrigerant affects the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, and ensuring that the compressor 100 is lubricated in time, ensuring the efficient and stable operation of the compressor 100.
[0069] See also Fig. 9 , a household appliance 1000 provided in an embodiment of the present application includes a muffler 10 of any of the above embodiments. The household appliance 1000 may include any household appliance 1000 having a refrigeration system, such as a refrigerator, an air conditioner, etc. The following is an example of the household appliance 1000 being an air conditioner, and the household appliance 1000 also includes a compressor 100100, a condenser 200, an evaporator 300, a regenerator 400, a throttling component 500, an anti-dew pipe 600, and a drying filter 700. The muffler 10 is arranged between the compressor 100100 and the condenser 200, the inlet 13 is connected to the exhaust port of the compressor 100, and the outlet 15 is connected to the condenser 200. At this time, the muffler 10 is easy to replace.
[0070] Please combine Figure 1 and Figure 2 In the silencer 10 of the household appliance 1000 of the present application, a rectifier tube 17 extending into the cavity 111 is provided at the inlet 13, and a plurality of diverter holes 171 are provided on the rectifier tube 17. The plurality of diverter holes 171 can divide the exhaust gas into small airflows, which can effectively reduce the pulse noise on the one hand; on the other hand, the momentum of the small airflow is low, and when it hits the shell 11, it is conducive to the separation of more refrigerant and lubricating oil. When the compressor 100 is stopped, the pressure on the side of the outlet 15 of the silencer 10 is When the pressure is greater than the pressure on the inlet 13 side of the muffler 10, the lubricating oil will be forced to flow to the inlet 13 side due to the pressure difference inside the cavity 111 and accumulate. When the accumulated oil is higher than the diverter hole 171, it will flow back to the compressor 100 through the inlet 13, which can not only prevent the oil-containing mixed gas from being transported to the condenser through the pipeline, and the oil-containing refrigerant from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, but also ensure that the compressor 100 is lubricated in time, and ensure the efficient and stable operation of the compressor 100.
[0071] See also Fig.10 , another household appliance 1000 provided in the embodiment of the present application includes the compressor 100 of the above embodiment. The household appliance 1000 may include any household appliance 1000 including a refrigeration system, such as a refrigerator, an air conditioner, etc. The household appliance 1000 is described below as an air conditioner as an example, and the household appliance 1000 also includes a compressor 100100, a condenser 200, an evaporator 300, a regenerator 400, a throttling component 500, an anti-dew pipe 600, and a drying filter 700. The muffler 10 is integrated inside the compressor 100100 and serves as a component of the compressor 100100, the inlet 13 is connected to the exhaust port of the compressor 100, and the outlet 15 is connected to the condenser 200. At this time, the integration of the muffler 10 is high, which can save the installation space inside the refrigerator.
[0072] Please combine Figure 1 and Figure 2In the silencer 10 of the household appliance 1000 of the present application, a rectifier tube 17 extending into the cavity 111 is provided at the inlet 13, and a plurality of diverter holes 171 are provided on the rectifier tube 17. The plurality of diverter holes 171 can divide the exhaust gas into small airflows, which can effectively reduce the pulse noise on the one hand; on the other hand, the momentum of the small airflow is low, and when it hits the shell 11, it is conducive to the separation of more refrigerant and lubricating oil. When the compressor 100 is stopped, the pressure on the side of the outlet 15 of the silencer 10 is When the pressure is greater than the pressure on the inlet 13 side of the muffler 10, the lubricating oil will be forced to flow to the inlet 13 side due to the pressure difference inside the cavity 111 and accumulate. When the accumulated oil is higher than the diverter hole 171, it will flow back to the compressor 100 through the inlet 13, which can not only prevent the oil-containing mixed gas from being transported to the condenser through the pipeline, and the oil-containing refrigerant from affecting the condensation and evaporation heat transfer, thereby ensuring the heat exchange efficiency, but also ensure that the compressor 100 is lubricated in time, and ensure the efficient and stable operation of the compressor 100.
[0073] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0074] It is worth mentioning that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Features defined as "first" and "second" may explicitly or implicitly include at least one feature. In the description of this application, the meaning of "multiple" is at least two, two in one embodiment, three, unless otherwise clearly defined.
[0075] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.
Claims
1. A compressor, characterized in that: include: shell; A muffler, the muffler is installed in the housing, and the muffler comprises: A housing, wherein the housing is provided with a cavity; an inlet, the inlet being arranged at the first end of the shell and communicating with the interior of the cavity, the inlet being provided with a rectifier tube extending into the interior of the cavity, the rectifier tube being provided with a plurality of diversion holes; and an outlet, the outlet being disposed at the second end of the shell and communicating with the cavity; The first end is opposite to the second end, and in the direction from the first end to the second end, the center of the inlet is offset from the center of the outlet; In the radial direction of the shell, the center of the inlet is located lower than the center of the outlet; the shell includes a first side and a second side located between the first end and the second end; the first side is the lower side of the shell, the second side is the upper side opposite to the first side, and the lowest position of the inlet is higher than the first side; The aperture of the diversion hole is greater than or equal to 0.5 mm and less than or equal to 4 mm; Wherein, when the compressor is stopped, the lubricating oil can enter the rectifier tube through the diverter hole.
2. The compressor according to claim 1, characterized in that The silencer also includes: At least one baffle is disposed in the cavity and has a gap with the inner wall of the cavity, and the gap is for fluid to pass through.
3. The compressor according to claim 2, characterized in that There are multiple baffles, and the multiple baffles are staggered in the cavity to form a serpentine channel between the baffles and the outlet.
4. The compressor according to claim 3, characterized in that A portion of the baffle extends from the first side toward the second side and forms the gap with the second side, and another portion of the baffle extends from the second side toward the first side and forms the gap with the first side.
5. The compressor according to claim 4, characterized in that An oil return hole is provided at the junction of the baffle plate located on the first side and the inner wall of the cavity, and the oil return hole is used for oil to pass through.
6. The compressor according to any one of claims 1 to 5, characterized in that: Also includes: An oil return capillary is provided through the side wall of the shell and is used to communicate with the cavity to output the refluxed oil.
7. A household appliance, characterized in that: include: A compressor as claimed in any one of claims 1 to 6.