Compressor and household appliance

Abstract

The utility model discloses a compressor and a household appliance. The compressor comprises a crankcase, a piston assembly, a motor assembly, an air suction and exhaust assembly and an air cylinder cover. Wherein the crankcase comprises a mounting part, the mounting part is provided with a mounting groove and a cylinder hole, and the mounting groove is communicated with the cylinder hole; the piston assembly extends into the air cylinder hole. The motor assembly is connected with the piston assembly, and the motor assembly is configured to drive the piston assembly to do reciprocating motion in the air cylinder hole; the air suction and exhaust assembly is arranged in the mounting groove; and the cylinder cover is connected with the mounting part and fixes the air suction and exhaust assembly in the mounting groove. According to the compressor, the mounting groove is formed in the mounting part of the crankcase, the air suction and exhaust assembly is arranged in the mounting groove, air suction and exhaust of the compressor are conducted in the mounting groove, and therefore the external space, occupied by the air suction and exhaust assembly, of the crankcase can be reduced, the occupied size of the compressor can be reduced, and miniaturization of the compressor is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and more particularly, to a compressor and a household appliance. Background Art

[0002] At present, the reciprocating compressor, as the core component of the refrigerator refrigeration system, can compress the refrigerant gas into high-pressure gas through the reciprocating motion of the piston, thereby realizing the refrigeration cycle.

[0003] In the prior art, the intake and exhaust components of reciprocating compressors are typically located above the compressor cylinder and secured to the cylinder crankcase via screws to control the intake and exhaust of refrigerant. However, placing the intake and exhaust components above the cylinder increases the compressor's footprint, hindering its miniaturization. Utility Model Content

[0004] The embodiments of the present application provide a compressor and a household appliance that can solve or improve the technical problem that the intake and exhaust components are arranged on the upper part of the cylinder, which increases the occupied volume of the compressor and is not conducive to the miniaturization of the compressor.

[0005] A compressor according to an embodiment of the present application includes a crankcase, a piston assembly, a motor assembly, an intake and exhaust assembly, and a cylinder head. The crankcase includes a mounting portion having a mounting slot and a cylinder bore, the mounting slot communicating with the cylinder bore; the piston assembly extends into the cylinder bore; the motor assembly is connected to the piston assembly and configured to drive the piston assembly to reciprocate within the cylinder bore; the intake and exhaust assembly is disposed within the mounting slot; and the cylinder head is connected to the mounting portion and secures the intake and exhaust assembly within the mounting slot.

[0006] In this way, by opening a mounting groove on the mounting part of the crankcase and arranging the intake and exhaust assembly in the mounting groove, the piston assembly can perform the intake and exhaust of the compressor together with the intake and exhaust assembly installed in the mounting groove, thereby reducing the external space occupied by the intake and exhaust assembly in the crankcase, reducing the occupied volume of the compressor, and thus facilitating the miniaturization of the compressor.

[0007] In a certain embodiment, the shape of the mounting groove is adapted to the shape of the air intake and exhaust component, so that the air intake and exhaust component is loosely matched with the mounting groove.

[0008] In this way, by setting the shape of the mounting groove to match the shape of the intake and exhaust assembly, the mounting groove can accommodate the intake and exhaust assembly, thereby reducing the external space occupied by the intake and exhaust assembly in the crankcase, reducing the volume occupied by the compressor, and thus facilitating the miniaturization of the compressor.

[0009] In one embodiment, the intake and exhaust assembly includes a valve plate gasket and a valve plate assembly, and the valve plate assembly is connected to the bottom surface of the mounting groove through the valve plate gasket.

[0010] In this way, since the valve plate gasket can absorb and cushion vibration and impact force, the valve plate assembly can be connected to the bottom surface of the mounting groove by setting the valve plate gasket, thereby avoiding noise and mechanical wear caused by vibration between the valve plate assembly and the mounting groove, and improving the service life of the valve plate assembly.

[0011] In one embodiment, the valve plate assembly includes an intake valve plate, a valve plate, and an exhaust valve plate. The intake valve plate is arranged on a side of the valve plate away from the cylinder head, and the exhaust valve plate is arranged on a side of the valve plate close to the cylinder head.

[0012] In this way, by arranging the intake valve plate and the exhaust valve plate on the facing and back sides of the valve plate respectively, the intake and exhaust processes can be effectively separated, interference between the intake and exhaust can be avoided, and the gas exchange efficiency of the compressor is improved.

[0013] In a certain embodiment, the intake valve plate includes a first intake valve plate and a second intake valve plate, the first intake valve plate is provided with a first through hole, and the second intake valve plate is provided in the first through hole.

[0014] In this way, by providing the first through hole on the first intake valve plate and installing the second intake valve plate therein, stratified control of the gas can be achieved, and it helps to optimize the flow path of the gas and reduce the resistance and loss of the gas during the flow process.

[0015] In a certain embodiment, the first intake valve plate is provided with a second through hole, the valve plate is provided with an intake hole and an exhaust hole, the second intake valve plate is configured to control the conduction and shutoff of the intake hole and the first through hole, and the exhaust valve plate is configured to control the conduction and shutoff of the exhaust hole and the second through hole.

[0016] Thus, by providing an intake hole on the valve plate, and by enabling the second intake valve to control the connection and disconnection between the intake hole and the first through hole, it is possible to ensure that gas enters the compressor in an orderly manner when needed, preventing gas backflow or leakage. By providing an exhaust hole on the valve plate, and by enabling the exhaust valve to control the connection and disconnection between the exhaust hole and the second through hole, it is possible to ensure that gas is discharged from the compressor in an orderly manner when needed, preventing gas stagnation or leakage.

[0017] In one embodiment, a recessed groove is provided on the surface of the valve plate facing the exhaust valve disc, and the exhaust valve disc covers a portion of the recessed groove. The recessed groove is configured to contain lubricating oil of the compressor so that the exhaust valve disc can easily open the exhaust hole.

[0018] In this way, by providing a recessed groove on the surface of the valve plate and allowing the exhaust valve plate to cover a portion of the recessed groove, it is possible to prevent the valve plate and the exhaust valve plate from having difficulty opening due to the tension of the lubricating oil in the compressor.

[0019] In one embodiment, before the cylinder head is assembled to the mounting portion, the height of the valve plate protruding from the mounting groove is greater than 0.02 mm and less than or equal to 0.5 mm.

[0020] In this way, by setting the valve plate in the mounting groove to a height greater than 0.02 mm and less than or equal to 0.5 mm protruding from the mounting groove, the cylinder head gasket can press against the valve plate during the process of assembling the cylinder head to the mounting part, thereby increasing the contact area between the valve plate and the mounting groove and improving the stability of the valve plate.

[0021] In one embodiment, the compressor includes a cylinder head gasket, the cylinder head is sealed and connected to the mounting portion through the cylinder head gasket, and the cylinder head gasket presses the intake and exhaust assembly into the mounting groove.

[0022] In this way, by arranging a cylinder head gasket between the cylinder head and the mounting portion so that the gap between the cylinder head and the mounting portion is sealed, the mounting groove can be sealed and the intake and exhaust components can be fixed, thereby improving the sealing of the compressor and avoiding leakage.

[0023] In a certain embodiment, the mounting portion is provided with a plurality of first mounting holes, the cylinder head gasket is provided with a plurality of second mounting holes, the cylinder head is provided with a plurality of third mounting holes, and the compressor includes a plurality of connecting parts, each of the connecting parts sequentially passing through the third mounting hole, the second mounting hole and the first mounting hole to fix the cylinder head, the cylinder head gasket and the crankcase.

[0024] In this way, by setting multiple mounting holes on the mounting part, the cylinder head gasket and the cylinder head, the connecting parts can pass through the multiple mounting holes to fix the cylinder head, the cylinder head gasket and the crankcase, thereby achieving the sealing of the mounting groove and the fixation of the intake and exhaust components, preventing gas leakage, and thus ensuring the normal operation of the compressor.

[0025] A household appliance according to an embodiment of the present application includes the compressor as described in any one of the above embodiments.

[0026] 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 obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 is a partial structural schematic diagram of a compressor according to certain embodiments of the present application;

[0029] Figure 2 is a partial structural schematic diagram of a compressor according to certain embodiments of the present application;

[0030] Figure 3 is a partially exploded schematic diagram of a compressor according to certain embodiments of the present application;

[0031] Figure 4 is a partial cross-sectional schematic diagram of a compressor according to certain embodiments of the present application;

[0032] Figures 5 to 10 4 is a diagram showing simulation results of the deformation of the cylinder bore in certain embodiments of the present application.

[0033] Description of reference numerals:

[0034] 100. Compressor; 10. Crankcase; 11. Mounting portion; 111. Mounting groove; 112. First mounting hole; 113. Cylinder hole; 20. Intake and exhaust assembly; 21. Valve plate gasket; 22. Valve plate assembly; 221. Intake valve plate; 2211. First intake valve plate; 2212. First through hole; 2213. Second through hole; 2214. Second intake valve plate; 222. Valve plate; 2221. Intake hole; 2222. Exhaust hole; 2223. Groove; 223. Exhaust valve plate; 30. Cylinder head; 31. Third mounting hole; 40. Cylinder head gasket; 41. Second mounting hole; 50. Connector; 60. Piston assembly; 70. Motor assembly. DETAILED DESCRIPTION

[0035] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting this application. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections. They can refer to mechanical connections or electrical connections. They can refer to direct connections or indirect connections through an intermediary. They can refer to internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] The disclosure herein provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0040] See also Figure 1 、 Figure 2 and Figure 3A compressor 100 provided in an embodiment of the present application includes a crankcase 10, a piston assembly 60, a motor assembly 70, an intake and exhaust assembly 20, and a cylinder head 30. The crankcase 10 includes a mounting portion 11, which is provided with a mounting groove 111 and a cylinder bore 113, wherein the mounting groove 111 is in communication with the cylinder bore 113; the piston assembly 60 extends into the cylinder bore 113; the motor assembly 70 is connected to the piston assembly 60, and the motor assembly 70 is configured to drive the piston assembly 60 to reciprocate within the cylinder bore 113; the intake and exhaust assembly 20 is disposed within the mounting groove 111; and the cylinder head 30 is connected to the mounting portion 11 and secures the intake and exhaust assembly 20 within the mounting groove 111.

[0041] In this way, by opening a mounting groove 111 on the mounting portion 11 of the crankcase 10 and arranging the intake and exhaust assembly 20 in the mounting groove 111, the piston assembly 60 can perform intake and exhaust of the compressor 100 together with the intake and exhaust assembly 20 installed in the mounting groove 111, thereby reducing the external space occupied by the intake and exhaust assembly 20 in the crankcase 10, reducing the occupied volume of the compressor 100, and thus facilitating the miniaturization of the compressor 100.

[0042] Among them, the compressor 100 can be used in household appliances (not marked in the accompanying drawings), including but not limited to refrigerators, air conditioners and freezers, etc. The household appliances of this application are described by taking a refrigerator as an example. The compressor 100 is a core component in the refrigeration system of the refrigerator, which can convert low-temperature, low-pressure gas into high-temperature, high-pressure gas. For example, the compressor 100 can inhale low-temperature, low-pressure refrigerant gas and convert it into high-temperature, high-pressure gas through mechanical compression. Thus, through the compression action of the compressor 100, the temperature and pressure of the refrigerant are improved. At the same time, the compressor 100 can also control the temperature and pressure of the refrigeration system by adjusting its working state, thereby meeting different refrigeration needs.

[0043] The compressor 100 can provide refrigeration power to the refrigeration system of the refrigerator. For example, in a refrigeration cycle, the compressor 100 can push the refrigerant to circulate continuously in the refrigeration system, thereby achieving a continuous refrigeration effect.

[0044] Specifically, the compressor 100 can be a reciprocating compressor 100, which can compress refrigerant gas into high-pressure gas through the reciprocating motion of the piston, thereby realizing a refrigeration cycle. The compressor 100 includes a crankcase 10, a piston assembly 60, a motor assembly 70, an intake and exhaust assembly 20, and a cylinder head 30. The crankcase 10 can form a closed space inside the compressor 100, effectively preventing external impurities and moisture from entering the compressor 100, thereby protecting the compressor 100 from damage. Furthermore, the sealing structure inside the crankcase 10 can prevent the high-pressure refrigerant gas inside the compressor 100 from leaking to the outside, ensuring the normal operation of the compressor 100. Furthermore, the crankcase 10 provides a mounting location and support for the crankshaft. For example, during the operation of the compressor 100, a crankshaft that can convert the reciprocating linear motion of the piston into rotational motion is disposed within the crankcase 10, thereby ensuring the stable operation of the crankshaft. At the same time, the crankcase 10 also supports other key components such as the connecting rod and the cylinder liner, ensuring the stability and reliability of the entire compressor 100 structure.

[0045] The piston assembly 60 can convert the pressure energy of the gas into mechanical energy, thereby driving the compressor 100 to work. Among them, the piston assembly 60 includes a piston, a connecting rod and a crankshaft. The piston and the crankshaft can be connected through a connecting rod. One end of the connecting rod is connected to the crank pin on the crankshaft, and the other end is connected to the piston rod of the piston. When the crankshaft rotates, the crank pin will drive the connecting rod to reciprocate, and then push the piston to reciprocate in the cylinder hole 113. There are many ways to connect the piston rod and the piston. For example, a cylindrical boss connection or a conical surface connection, etc. The connection method between the piston rod and the piston needs to ensure a close fit between the piston rod and the piston and sufficient strength to withstand the gas pressure and the impact force during movement.

[0046] The motor assembly 70 provides the power for the compressor 100 to perform compression. The motor assembly 70 includes a motor and a coupling, and the motor can be connected to the crankshaft via the coupling. For example, the motor includes a stator and a rotor, and the stator can be connected to the crankshaft via a coupling. A coupling is a device used to connect two shafts, capable of transmitting torque and rotational motion, thereby enabling the motor to drive the crankshaft.

[0047] The crankcase 10 is provided with a mounting portion 11, which is provided with a mounting groove 111. The mounting groove 111 is used to mount the intake and exhaust assembly 20. The intake and exhaust assembly 20 can control the entry and exit of refrigerant gas within the compressor 100. For example, the intake and exhaust assembly 20 can control the flow rate of low-temperature, low-pressure refrigerant entering the compressor 100, as well as the flow rate of high-temperature, high-pressure refrigerant compressed by the compressor 100.

[0048] The cylinder head 30 can be connected to the mounting portion 11, thereby securing the intake and exhaust assembly 20 within the mounting groove 111 and enclosing the crankcase 10, thereby forming a compression space for the compressor 100. The cylinder head 30 also provides necessary protection for the crankcase 10, preventing the high-temperature, high-pressure refrigerant gas generated during the compression process from directly expanding outward. It also prevents external dust and moisture from entering the crankcase 10, thereby ensuring the normal operation of the compressor 100.

[0049] See also Figure 2 and Figure 3 In a certain embodiment, the shape of the mounting groove 111 is adapted to the shape of the air intake and exhaust assembly 20 so that the air intake and exhaust assembly 20 and the mounting groove 111 are clearance-matched.

[0050] In this way, by setting the shape of the mounting groove 111 to match the shape of the intake and exhaust assembly 20, the mounting groove 111 can accommodate the intake and exhaust assembly 20, thereby reducing the external space occupied by the intake and exhaust assembly 20 in the crankcase 10, and reducing the occupied volume of the compressor 100, which is conducive to the miniaturization of the compressor 100.

[0051] Specifically, the shape of the mounting groove 111 provided on the mounting portion 11 needs to be configured based on the shape of the air intake and exhaust assembly 20, so that the air intake and exhaust assembly 20 can be installed within the mounting groove 111. For example, before forming the mounting groove 111 on the mounting portion 11, the size and shape of the air intake and exhaust assembly 20 need to be measured. If the air intake and exhaust assembly 20 is cylindrical, the shape of the mounting groove 111 also needs to be configured to be cylindrical; if the air intake and exhaust assembly 20 is prismatic, the shape of the mounting groove 111 also needs to be configured to be prismatic. This ensures that the air intake and exhaust assembly 20 can be placed within the mounting groove 111.

[0052] By reserving a certain gap between the mounting groove 111 and the intake and exhaust assembly 20, it is possible to prevent the intake and exhaust assembly 20 from getting stuck during assembly due to dimensional tolerances or assembly errors, allowing the intake and exhaust assembly 20 to be easily and accurately installed in the mounting groove 111. Furthermore, during the operation of the compressor 100, the intake and exhaust assembly 20 may undergo thermal expansion due to increased temperature. Therefore, the clearance fit between the mounting groove 111 and the intake and exhaust assembly 20 can accommodate this thermal expansion and prevent damage or failure of the intake and exhaust assembly 20 due to excessive thermal stress. Furthermore, the reasonable clearance fit between the mounting groove 111 and the intake and exhaust assembly 20 can reduce friction and wear between the intake and exhaust assembly 20 and the mounting groove 111, extending the service life of the intake and exhaust assembly 20, thereby improving the reliability and stability of the compressor 100. Finally, the clearance fit between the mounting groove 111 and the intake and exhaust assembly 20 makes it easier to remove the intake and exhaust assembly 20 from the mounting groove 111 when maintenance or replacement is required, reducing maintenance costs and time.

[0053] See also Figure 2 In one embodiment, the intake and exhaust assembly 20 includes a valve plate gasket 21 and a valve plate assembly 22 , and the valve plate assembly 22 is connected to the bottom surface of the mounting groove 111 through the valve plate gasket 21 .

[0054] In this way, since the valve plate gasket 21 can absorb and buffer vibration and impact force, the valve plate gasket 21 is provided so that the valve plate assembly 22 can be connected to the bottom surface of the mounting groove 111, thereby avoiding noise and mechanical wear caused by vibration between the valve plate assembly 22 and the mounting groove 111, thereby improving the service life of the valve plate assembly 22.

[0055] Specifically, the intake and exhaust assembly 20 includes a valve plate gasket 21 and a valve plate assembly 22. The shape of the valve plate gasket 21 matches the shape of the mounting groove 111, allowing the valve plate gasket 21 to be installed within the mounting groove 111 and contact the bottom surface of the mounting groove 111. The valve plate assembly 22 can be installed within the mounting groove 111 with the valve plate gasket 21 positioned therein, thereby connecting the valve plate assembly 22 to the bottom surface of the mounting groove 111 via the valve plate gasket 21.

[0056] The valve plate gasket 21 is arranged between the bottom surface of the mounting groove 111 and the valve plate assembly 22, and can fill the small gap between the bottom surface of the mounting groove 111 and the valve plate assembly 22. At the same time, the valve plate gasket 21 can also adapt to the slight displacement of the valve plate assembly 22 caused by thermal expansion and contraction, thereby ensuring the sealing between the valve plate assembly 22 and the mounting groove 111 and preventing refrigerant gas leakage.

[0057] At the same time, the gasket of the valve plate 222 can absorb and buffer vibration and impact force, avoid noise and mechanical wear caused by vibration between the bottom surface of the installation groove 111 and the valve plate assembly 22, and play a role in supporting and protecting the valve plate assembly 22.

[0058] Furthermore, the valve plate gasket 21 can be made of corrosion-resistant material, thereby effectively preventing the valve plate assembly 22 from being damaged by corrosion, thereby increasing the service life of the valve plate assembly 22 .

[0059] See also Figure 3 In a certain embodiment, the valve plate assembly 22 includes an intake valve plate 221, a valve plate 222 and an exhaust valve plate 223. The intake valve plate 221 is arranged on the side of the valve plate 222 away from the cylinder head 30, and the exhaust valve plate 223 is arranged on the side of the valve plate 222 close to the cylinder head 30.

[0060] In this way, by arranging the intake valve plate 221 and the exhaust valve plate 223 on the opposite sides of the valve plate 222 respectively, the intake and exhaust processes can be effectively separated, interference between the intake and exhaust can be avoided, and the gas exchange efficiency of the compressor 100 is improved.

[0061] Specifically, the valve plate assembly 22 includes an intake valve disc 221, a valve plate 222, and an exhaust valve disc 223. The intake valve disc 221 and the exhaust valve disc 223 can be connected to the valve plate 222 by electric welding. By controlling the opening and closing of the intake valve disc 221, low-temperature, low-pressure refrigerant gas can be controlled to be sucked into the compressor 100. The valve plate 222 defines a path for the refrigerant gas to enter and exit the compressor 100. By controlling the opening and closing of the exhaust valve disc 223, high-temperature, high-pressure refrigerant gas can be controlled to be discharged from the compressor 100.

[0062] The intake valve plate 221 can be arranged on the side of the valve plate 222 away from the cylinder head 30, and the exhaust valve plate 223 can be arranged on the side of the valve plate 222 close to the cylinder head 30, that is, the intake valve plate 221 and the exhaust valve plate 223 can be respectively arranged on opposite sides of the valve plate 222, so that the intake valve plate 221 can be close to the air inlet of the compressor 100. When the compressor 100 needs to inhale air, the intake valve plate 221 will open, allowing low-temperature and low-pressure refrigerant to enter the compressor 100, and by precisely controlling the opening and closing of the intake valve plate 221, it can be ensured that the low-temperature and low-pressure refrigerant gas enters the compressor 100 in an orderly manner when needed, avoiding backflow or leakage of the refrigerant gas.

[0063] This allows the exhaust valve plate 223 to be close to the exhaust port of the compressor 100. When the compressor 100 needs to be exhausted, the exhaust valve plate 223 will open, allowing the high-temperature and high-pressure refrigerant gas in the compressor 100 to be discharged. Furthermore, by precisely controlling the opening and closing of the exhaust valve plate 223, it is possible to ensure that the high-temperature and high-pressure refrigerant gas is discharged from the compressor 100 in an orderly manner when needed, preventing the refrigerant gas from being retained or leaked.

[0064] Positioning the intake valve plate 221 and the exhaust valve plate 223 on either side of the valve plate 222 effectively separates the intake and exhaust processes. This prevents interference between the intake and exhaust processes, improving gas exchange efficiency. Furthermore, by rationally designing the structure and layout of the valve plate 222, the refrigerant gas flow path can be optimized, helping to reduce resistance and loss during the refrigerant gas flow process, further improving gas exchange efficiency.

[0065] By arranging the intake valve disc 221 and the exhaust valve disc 223 on either side of the valve plate 222, friction and wear between the valve discs can be reduced, thereby extending the service life of the valve discs and improving the reliability of the device. Furthermore, arranging the intake valve disc 221 and the exhaust valve disc 223 on either side of the valve plate 222 can simplify the maintenance process of the device, making it easier to access and operate the intake valve disc 221 or the exhaust valve disc 223 when maintenance or replacement is required. Furthermore, by simplifying the maintenance process and improving the durability of the intake valve disc 221, the valve plate 222, and the exhaust valve disc 223, the maintenance cost of the compressor 100 can be reduced, thereby extending the service life of the compressor 100.

[0066] See also Figure 3 In one embodiment, the intake valve plate 221 includes a first intake valve plate 2211 and a second intake valve plate 2214 . The first intake valve plate 2211 is provided with a first through hole 2212 , and the second intake valve plate 2214 is provided in the first through hole 2212 .

[0067] In this way, by setting the first through hole 2212 on the first intake valve plate 2211 and installing the second intake valve plate 2214 therein, gas stratification control can be achieved, and it helps to optimize the flow path of the gas and reduce the resistance and loss of the gas during the flow process.

[0068] Specifically, by providing a first through-hole 2212 in the first intake valve plate 2211 and installing a second intake valve plate 2214 therein, stratified control of the refrigerant gas can be achieved. For example, the first through-hole 2212 serves as the main channel for the refrigerant gas to enter the compressor 100, allowing a certain amount of refrigerant gas to pass through, while the second intake valve plate 2214 covers the air inlet of the compressor 100 and opens and closes the air inlet under the action of pressure. This helps optimize the flow path of the refrigerant gas, reducing resistance and loss during the gas flow process. By precisely controlling the opening and closing of the second intake valve plate 2214, it can ensure that the refrigerant gas enters the compressor 100 in an optimal manner.

[0069] The combined use of the first intake valve plate 2211 and the second intake valve plate 2214 provides the possibility of multi-stage adjustment, and according to actual needs, the flow rate and pressure of the gas can be changed by adjusting the opening degree of the second intake valve plate 2214.

[0070] Under different working conditions, the demand for refrigerant gas may vary. By adjusting the size of the first through hole 2212 and the opening degree of the second suction valve plate 2214, these changes can be flexibly adapted to ensure that the device can maintain optimal performance under different working conditions.

[0071] Providing the second intake valve disc 2214 in the first through hole 2212 can reduce direct friction and wear between the first intake valve disc 2211 and the second intake valve disc 2214 , thereby helping to extend the service life of the intake valve disc 221 .

[0072] By setting a first through hole 2212 on the first intake valve plate 2211 and installing the second intake valve plate 2214 therein, when the second intake valve plate 2214 needs to be replaced, there is no need to replace the first intake valve plate 2211, thereby making the maintenance and replacement of the second intake valve plate 2214 easier and saving costs.

[0073] See also Figure 3 In a certain embodiment, the first intake valve plate 2211 is provided with a second through hole 2213, the valve plate 222 is provided with an intake hole 2221 and an exhaust hole 2222, the second intake valve plate 2214 is configured to control the conduction and shutoff of the intake hole 2221 and the first through hole 2212, and the exhaust valve plate 223 is configured to control the conduction and shutoff of the exhaust hole 2222 and the second through hole 2213.

[0074] Thus, by providing the intake hole 2221 on the valve plate 222, and the second intake valve plate 2214 being able to control the connection and disconnection between the intake hole 2221 and the first through hole 2212, it is possible to ensure that gas enters the compressor 100 in an orderly manner when needed, and to prevent gas backflow or leakage. By providing the exhaust hole 2222 on the valve plate 222, and the exhaust valve plate 223 being able to control the connection and disconnection between the exhaust hole 2222 and the second through hole 2213, it is possible to ensure that gas is discharged from the compressor 100 in an orderly manner when needed, and to prevent gas stagnation or leakage.

[0075] Specifically, the valve plate 222 is provided with an air intake hole 2221 and an air discharge hole 2222. The air intake hole 2221 can serve as a path for the compressor 100 to inhale low-temperature and low-pressure refrigerant gas, and the air discharge hole 2222 can serve as a path for the compressor 100 to discharge high-temperature and high-pressure refrigerant gas.

[0076] A second through-hole 2213 is also provided on the first intake valve plate 2211. The second through-hole 2213 can be connected to or isolated from the first through-hole 2212 on the first intake valve plate 2211. Furthermore, the second intake valve plate 2214 can be configured to cover both the intake hole 2221 and the first through-hole 2212. Specifically, the orthographic projections of the intake hole 2221 and the first through-hole 2212 appear on the second intake valve plate 2214. This allows the intake hole 2221 to be connected to or disconnected from the first through-hole 2212 under pressure control. The exhaust valve plate 223 can be configured to cover both the exhaust hole 2222 and the second through-hole 2213. Specifically, the orthographic projections of the exhaust hole 2222 and the second through-hole 2213 appear on the exhaust valve plate 223. This allows the exhaust hole 2222 to be connected to or disconnected from the first through-hole 2212 under pressure control.

[0077] See also Figure 3 In one embodiment, a recess 2223 is provided on the surface of the valve plate 222 facing the exhaust valve plate 223, and the exhaust valve plate 223 covers a portion of the recess 2223. The recess 2223 is configured to accommodate lubricating oil of the compressor 100 so that the exhaust valve plate 223 can easily open the exhaust hole 2222.

[0078] Thus, by providing the recessed groove 2223 on the surface of the valve plate 222 and allowing the exhaust valve disc 223 to cover a portion of the recessed groove 2223, it is possible to prevent the valve plate 222 and the exhaust valve disc 223 from being difficult to open due to the tension of the lubricating oil in the compressor 100.

[0079] Specifically, since the compressor 100 requires lubricating oil during operation, the lubricating oil can reduce friction between various components along the gas flow path. However, due to the tension of the lubricating oil, when the lubricating oil flows between the exhaust valve disc 223 and the exhaust hole 2222, the exhaust valve disc 223 is easily adhered to the valve plate 222, making it difficult for the exhaust valve disc 223 to open the exhaust hole 2222.

[0080] By providing a recessed groove 2223 on the surface of the valve plate 222 facing the exhaust valve plate 223, and the exhaust valve plate 223 covering a portion of the recessed groove 2223, the lubricating oil can flow into the recessed groove 2223 between the exhaust valve plate 223 and the valve plate 222, and will not be blocked between the exhaust valve plate 223 and the valve plate 222. To a certain extent, the influence of the tension of the lubricating oil on the exhaust valve plate 223 can be reduced, which is conducive to the exhaust valve plate 223 opening the exhaust hole 2222.

[0081] See also Figure 4 In one embodiment, before the cylinder head 30 is assembled to the mounting portion 11 , the height of the valve plate 222 protruding from the mounting groove 111 is greater than 0.02 mm and less than or equal to 0.5 mm.

[0082] In this way, by setting the valve plate 222 in the mounting groove 111 to a height greater than 0.02 mm and less than or equal to 0.5 mm protruding from the mounting groove 111, the cylinder head gasket 40 can press against the valve plate 222 during the process of assembling the cylinder head 30 to the mounting portion 11, thereby increasing the contact area between the valve plate 222 and the mounting groove 111 and improving the stability of the valve plate 222.

[0083] Specifically, before the cylinder head 30 is assembled to the mounting portion 11, the valve plate 222 needs to be placed in the mounting groove 111, and part of the valve plate 222 needs to protrude outside the notch of the mounting groove 111, that is, the valve plate 222 needs to protrude from the end surface of the mounting portion 11. For example, Figure 3 As shown, the height H of the valve plate 222 protruding from the mounting groove 111 can be set to be greater than 0.02 mm. This allows the cylinder head 30 to squeeze the valve plate 222 when assembled to the mounting portion 11, thereby securing the valve plate 222 within the mounting groove 111. If the height H of the valve plate 222 protruding from the mounting groove 111 is set to be less than or equal to 0.02 mm, the cylinder head 30 cannot squeeze the valve plate 222 when assembled to the mounting portion 11, causing the valve plate 222 to move within the mounting groove 111, thereby hindering the intake and exhaust of the compressor 100.

[0084] Please refer again Figure 3 In one embodiment, the compressor 100 includes a cylinder head gasket 40 , and the cylinder head 30 is sealed and connected to the mounting portion 11 through the cylinder head gasket 40 . The cylinder head gasket 40 presses the intake and exhaust assembly 20 into the mounting groove 111 .

[0085] In this way, by arranging the cylinder head gasket 40 between the cylinder head 30 and the mounting portion 11 so that the gap between the cylinder head 30 and the mounting portion 11 is sealed, the sealing of the mounting groove 111 and the fixation of the intake and exhaust assembly 20 can be achieved, thereby improving the sealing of the compressor 100 and avoiding leakage.

[0086] Specifically, the compressor 100 further includes a cylinder head gasket 40. The cylinder head gasket 40 is located between the cylinder block and the mounting portion 11. The cylinder head 30 is sealed to the mounting portion 11 via the cylinder head gasket 40. Thus, the cylinder head gasket 40 can fill the microscopic gaps between the two, ensuring good sealing at the joint surface. This effectively prevents leakage of refrigerant gas and lubricating oil, thereby maintaining the normal operation of the compressor 100.

[0087] The cylinder head gasket 40 can be made of a material with high strength and pressure resistance, heat resistance and corrosion resistance, so that the cylinder head gasket 40 can withstand the pressure generated when the cylinder head 30 is fixed to the mounting portion 11, and can withstand the high temperature and high pressure of the combustion gas in the cylinder and the corrosion of the engine oil and coolant.

[0088] The mounting portion 11 and the cylinder head 30 are often not completely aligned, and the cylinder head gasket 40 can compensate for this unevenness by adapting to the slight gap between the cylinder block and the cylinder head 30 through its elasticity, thereby ensuring a close fit between the two.

[0089] See also Figure 3 In a certain embodiment, the mounting portion 11 is provided with a plurality of first mounting holes 112, the cylinder head gasket 40 is provided with a plurality of second mounting holes 41, and the cylinder head 30 is provided with a plurality of third mounting holes 31. The compressor 100 includes a plurality of connectors 50, each connector 50 sequentially passes through the third mounting hole 31, the second mounting hole 41 and the first mounting hole 112 to fix the cylinder head 30, the cylinder head gasket 40 and the crankcase 10.

[0090] In this way, by setting multiple mounting holes on the mounting portion 11, the cylinder head gasket 40 and the cylinder head 30, the connecting member 50 can pass through the multiple mounting holes to fix the cylinder head 30, the cylinder head gasket 40 and the crankcase 10, thereby achieving the sealing of the mounting groove 111 and the fixation of the intake and exhaust assembly 20, preventing gas leakage, and thus ensuring the normal operation of the compressor 100.

[0091] Specifically, the cylinder head 30 can be sealed and connected to the mounting portion 11 via the cylinder head gasket 40. The cylinder head 30, the cylinder head gasket 40, and the mounting portion 11 can be connected by bolts. Thus, by providing a plurality of first mounting holes 112 on the mounting portion 11, a plurality of second mounting holes 41 on the cylinder head gasket 40, and a plurality of third mounting holes 31 on the cylinder head 30, and by relative arrangement of each first mounting hole 112, second mounting hole 41, and third mounting hole 31, the connecting member 50 (e.g., the connecting member 50 can be a screw) included in the compressor 100, which can pass through the third mounting hole 31, the second mounting hole 41, and the first mounting hole 112 in sequence to secure the cylinder head 30, the cylinder head gasket 40, and the crankcase 10.

[0092] See also Figures 5 to 10In some embodiments, when the piston moves toward the end of the cylinder port of the cylinder hole 113, the volume in the cylinder hole 113 is reduced, thereby compressing the gas. The deformation of the cylinder hole 113 can be reduced by installing the air intake and exhaust assembly 20 in the mounting groove 111. For example, when the air intake and exhaust assembly 20 is installed on the end face of the mounting portion 11, through simulation testing, it can be concluded that the deformation at the cylinder port of the cylinder hole 113 is 2.18um, the deformation at a position 5mm away from the cylinder port is 1.41um, and the deformation at a position 10mm away from the cylinder port is 0.54um; when the air intake and exhaust assembly 20 is installed in the mounting groove 111, through simulation testing, it can be concluded that the deformation at the cylinder port of the cylinder hole 113 is 1.06um, the deformation at a position 5mm away from the cylinder port is 0.64um, and the deformation at a position 10mm away from the cylinder port is 0.28um.

[0093] In the description of this specification, the reference terms "certain embodiments", "in an example", "exemplarily", etc. mean 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 representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0094] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are optional 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.

Claims

1. A compressor, characterized in that: include: A crankcase, the crankcase comprising a mounting portion, the mounting portion being provided with a mounting groove and a cylinder hole, the mounting groove being in communication with the cylinder hole; a piston assembly, the piston assembly extending into the cylinder bore; a motor assembly connected to the piston assembly, the motor assembly being configured to drive the piston assembly to perform reciprocating motion in the cylinder bore; an air intake and exhaust assembly, the air intake and exhaust assembly being arranged in the mounting groove; A cylinder head is connected to the mounting portion and fixes the intake and exhaust assembly in the mounting groove.

2. The compressor according to claim 1, characterized in that The shape of the mounting groove is adapted to the shape of the air intake and exhaust component, so that the air intake and exhaust component is loosely matched with the mounting groove.

3. The compressor according to claim 1, characterized in that The air intake and exhaust assembly includes a valve plate gasket and a valve plate assembly, and the valve plate assembly is connected to the bottom surface of the mounting groove through the valve plate gasket.

4. The compressor according to claim 3, characterized in that The valve plate assembly includes an intake valve plate, a valve plate and an exhaust valve plate. The intake valve plate is arranged on a side of the valve plate away from the cylinder head, and the exhaust valve plate is arranged on a side of the valve plate close to the cylinder head.

5. The compressor according to claim 4, characterized in that The air intake valve plate includes a first air intake valve plate and a second air intake valve plate. The first air intake valve plate is provided with a first through hole, and the second air intake valve plate is provided in the first through hole.

6. The compressor according to claim 5, characterized in that The first intake valve plate is provided with a second through hole, the valve plate is provided with an intake hole and an exhaust hole, the second intake valve plate is configured to control the conduction and shutoff of the intake hole and the first through hole, and the exhaust valve plate is configured to control the conduction and shutoff of the exhaust hole and the second through hole.

7. The compressor according to claim 6, characterized in that A recessed groove is provided on the surface of the valve plate facing the exhaust valve disc. The exhaust valve disc covers a portion of the recessed groove. The recessed groove is configured to contain lubricating oil of the compressor so that the exhaust valve disc can easily open the exhaust hole.

8. The compressor according to claim 4, characterized in that Before the cylinder head is assembled to the mounting portion, the height of the valve plate protruding from the mounting groove is greater than or equal to 0.02 mm and less than or equal to 0.5 mm.

9. The compressor according to claim 1, characterized in that The compressor includes a cylinder head gasket, through which the cylinder head is sealed and connected to the mounting portion, and the cylinder head gasket presses the intake and exhaust assembly into the mounting groove.

10. The compressor according to claim 9, characterized in that The mounting portion is provided with a plurality of first mounting holes, the cylinder head gasket is provided with a plurality of second mounting holes, the cylinder head is provided with a plurality of third mounting holes, and the compressor includes a plurality of connecting parts, each of the connecting parts passes through the third mounting hole, the second mounting hole and the first mounting hole in sequence to fix the cylinder head, the cylinder head gasket and the crankcase.

11. A household appliance, characterized in that: The compressor comprises the compressor according to any one of claims 1 to 10.

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