Reciprocating compressor and refrigeration equipment

Abstract

The embodiment of the invention provides a reciprocating compressor and refrigeration equipment, and the reciprocating compressor comprises a base which is provided with at least one connecting pin at each of the two ends along a first axis; the shell is arranged on the base, and a crankcase is arranged in the shell; the piston does linear reciprocating motion in the crankcase in the direction of the second axis; wherein the first axis intersects with the second axis, and an acute angle formed by the intersection of the first axis and the second axis is not less than 10 degrees. According to the technical scheme, the movement direction of the piston is not parallel to the direction of the base, so that all structures can be more reasonably arranged in the shell, and space waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a reciprocating compressor and a refrigeration device. Background Art

[0002] Currently, the size of the compressor in refrigerators and other refrigeration equipment directly affects the internal storage space. In related technologies, the arrangement of various internal structures of reciprocating compressors wastes a lot of space, resulting in poor space utilization and an overall excessively large volume. Summary of the Invention

[0003] The present invention aims to at least solve the technical problem of large volume of reciprocating compressors existing in the prior art or related art.

[0004] In view of this, an embodiment of a first aspect of the present invention provides a reciprocating compressor.

[0005] An embodiment of a second aspect of the present invention provides a refrigeration device.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a reciprocating compressor, comprising: a base, wherein the base is respectively provided with at least one connecting foot at both ends along a first axis; a shell, which is provided on the base and a crankcase is provided in the shell; and a piston, which performs a linear reciprocating motion in the crankcase along the direction of a second axis; wherein the first axis intersects with the second axis, and the acute angle formed by the intersection of the first axis and the second axis is not less than 10°.

[0007] The reciprocating compressor proposed in the present invention achieves miniaturization and a compact structure by arranging the piston and crankcase at an angle within the housing, i.e., the first and second axes intersect at an acute angle of 10° or greater. It will be appreciated that the piston's direction of motion is not parallel to the principal direction of the base (the principal direction being the direction of the first axis, which can be considered the major axis), and the angle formed between the two allows for a more rational arrangement of the movement within the housing, avoiding the space wasted in conventional compressors where the piston's motion and the base's orientation are aligned.

[0008] Furthermore, the acute angle formed by the intersection of the first axis and the second axis is no greater than 45°.

[0009] In some technical solutions, optionally, the reciprocating compressor also includes: a mounting hole, provided on the shell, and extending in a direction parallel to the first axis; a wiring structure, detachably connected to the mounting hole, with a portion of the wiring structure provided inside the shell, and another portion of the wiring structure provided outside the shell.

[0010] In this technical solution, the housing is provided with a mounting hole parallel to the first axis, facilitating assembly of the wiring structure. Furthermore, since the mounting hole extends parallel to the first axis, it facilitates connection of external wiring after the wiring structure is mounted in the mounting hole. This arrangement aligns the mounting hole with the base's connecting legs, ensuring consistent installation and positioning.

[0011] In some technical solutions, optionally, the reciprocating compressor also includes: an intake muffler, which is arranged in the shell, and the intake muffler is arranged at one end of the crankcase in the direction of the second axis; wherein, at least part of the mounting hole and part of the intake muffler are respectively arranged on both sides of the direction of the second axis.

[0012] In this technical solution, the suction muffler is located at one end of the crankcase along the second axis (i.e., the direction of piston motion), typically near the cylinder head. Designed inside the casing to fully utilize the housing space, the suction muffler primarily serves to reduce noise during the compressor's suction process, enhancing the equipment's quietness. The internal muffler structure smoothes refrigerant flow, reduces eddy currents and pulsation, and improves compression efficiency.

[0013] In some technical solutions, optionally, another part of the intake muffler and at least part of the mounting holes are arranged on the same side of the direction of the first axis; wherein, an avoidance structure is provided on the other part of the intake muffler.

[0014] In this technical solution, another part of the intake silencer and at least part of the mounting hole are arranged on the same side of the first axial direction, that is, the intake silencer is not completely distributed on both sides of the second axial direction, but there is a part on the same side as the mounting hole, and they are all distributed along the first axial direction. An avoidance structure is provided on the part of the intake silencer arranged on the same side to avoid interference with the wiring structure or other mechanical components installed on the mounting hole.

[0015] In some technical solutions, optionally, the minimum distance between the outer wall surface of the avoidance structure and the part of the wiring structure located in the shell is not less than 2 mm.

[0016] In this technical solution, by limiting the gap between the outer wall of the avoidance structure and the wiring structure, that is, the minimum distance is greater than or equal to 2mm, it can prevent mechanical vibration or thermal expansion and contraction and other factors from causing contact between the two, avoiding electrical short circuits, wear or damage. In addition, it can also prevent insulation material wear, reduce the risk of electrical failure, and ensure the safe operation of the compressor.

[0017] In some technical solutions, optionally, the reciprocating compressor also includes: an intake pipe, which is arranged on the shell, and the intake pipe is arranged opposite to the intake port of the intake muffler; an exhaust pipe, which is arranged on the shell; wherein the intake pipe and the exhaust pipe are arranged at both ends of the shell along the direction of the second axis, and the intake pipe and the mounting hole are respectively located on both sides of the direction of the second axis.

[0018] In this technical solution, an intake pipe is provided on the housing, opposite the intake port of the intake muffler. The intake pipe and the mounting hole are located on either side of the second axis. An exhaust pipe is provided on the housing, and the intake and exhaust pipes are arranged at opposite ends of the housing along the second axis. Specifically, they can be arranged symmetrically or balanced along the second axis (i.e., the direction of piston movement) to achieve optimal airflow, reduce airflow interference and pressure loss, and ensure clear airflow paths for intake and exhaust, which is beneficial for gas flow efficiency and noise control.

[0019] In some technical solutions, optionally, an air intake port is provided on the wall surface of the air intake muffler, and a silencer pipe is provided in the air intake port; wherein the silencer pipe is connected to the air intake pipe.

[0020] In this technical solution, the air intake is located on the shell wall of the air intake muffler and serves as the entrance for the refrigerant gas to enter the muffler. A muffler duct is provided inside the air intake. The muffler duct, as an internal structure of the air intake, is primarily used to reduce airflow noise. The muffler duct is designed with specific flow guidance and muffler structures (such as porous plates, baffles, and diffusion chambers) to achieve smooth airflow and noise attenuation.

[0021] In some technical solutions, optionally, the connecting legs are symmetrical about the first axis; and / or the multiple connecting legs located at both ends of the base at the first axis are an integrated structure.

[0022] In this technical solution, the balance of the mechanical structure is improved by limiting the symmetry of the connecting legs about the first axis. The symmetrical arrangement can evenly distribute the weight of the compressor and the vibration force generated during operation, reduce local stress concentration, and improve the stability of the compressor during operation.

[0023] The multiple connecting feet located at both ends of the first axis of the base are an integrated structure. The connecting feet at both ends of the base adopt an integrated design, that is, the multiple connecting feet are connected through the same integral component or structure to form a rigid whole. The integrated structure improves the overall stiffness and strength of the connecting feet.

[0024] In some technical solutions, optionally, the reciprocating compressor further includes: a plurality of supporting feet, arranged at the bottom of the crankcase; wherein, in the direction of the second axis, an intake muffler is provided at one end of the crankcase, and the number of supporting feet at the end close to the intake muffler is greater than the number of supporting feet at the end away from the intake muffler.

[0025] Several support legs are located at the bottom of the crankcase to support and secure it, ensuring stable installation of the movement. The intake muffler is located at one end of the crankcase along the second axis (the direction of piston motion). There are more support legs near the intake muffler than at the end away from the muffler. Understandably, the crankcase has more support legs near the intake muffler to provide stronger support.

[0026] Due to the uneven mass distribution, the crankcase, intake muffler and related components are usually heavier, which increases the overall weight of the crankcase at that end. More support legs are needed to share the load at that end to avoid structural deformation or vibration.

[0027] Another embodiment of the present invention provides a refrigeration device, comprising any one of the above-mentioned reciprocating compressors.

[0028] This solution integrates a reciprocating compressor with an angled layout, optimized space design, rationally placed support legs, an optimized suction muffler, and optimized airflow piping. The tilted layout and optimized space design of the compressor reduce the overall size of the unit, making it suitable for small-scale domestic or commercial refrigeration applications.

[0029] It can be understood that since the refrigeration equipment includes any of the above-mentioned reciprocating compressors and has the beneficial effects of any of the above-mentioned reciprocating compressors, they will not be described in detail here.

[0030] Among them, refrigeration equipment includes but is not limited to refrigerators, air conditioners, freezers and other equipment with refrigeration effects.

[0031] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a reciprocating compressor according to an embodiment of the present invention is shown;

[0033] Figure 2 A schematic structural diagram of an air suction muffler according to an embodiment of the present invention is shown;

[0034] Figure 3 A schematic structural diagram of a refrigeration device according to an embodiment of the present invention is shown.

[0035] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names is as follows:

[0036] 100: Reciprocating compressor; 102: Base; 1022: Connecting foot; 104: Housing; 1042: Crankcase; 1044: Piston; 1062: Mounting hole; 1064: Wiring structure; 108: Intake muffler; 1082: Avoidance structure; 1084: Intake port; 1086: Muffler duct; 110: Intake pipe; 112: Exhaust pipe; 114: Support foot; 120: First axis; 122: Second axis;

[0037] 200: Refrigeration equipment. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0040] Refer to the following Figures 1 to 3 Some embodiments according to the present invention are described.

[0041] like Figure 1 As shown, this embodiment provides a reciprocating compressor 100. By achieving an inclined arrangement of a piston 1044 and a crankcase 1042 within a housing 104, namely, the first axis 120 and the second axis 122 intersect and form an acute angle of ≥10°, the compressor is miniaturized and compact. It will be appreciated that the movement direction of the piston 1044 is not parallel to the long axis of the base 102, but rather forms a certain angle. This allows for a more rational arrangement of the movement within the housing 104, avoiding space waste in conventional compressors where the movement of the piston 1044 is aligned with the direction of the base 102.

[0042] Specifically, base 102 extends along first axis 120 and is provided with one or more connecting legs 1022 at each end. Connecting legs 1022 are primarily used to secure the compressor to a device or bracket, ensuring its stability. The distribution of connecting legs 1022 provides a more stable installation and reduces loosening or damage caused by vibration.

[0043] The first axis 120 of the base 102 is the main installation direction of the compressor, ensuring accurate positioning of the entire machine.

[0044] The housing 104 is mounted on the base 102 and contains a crankcase 1042. The housing 104 provides sealing protection for the internal mechanical components to prevent refrigerant leakage and foreign matter from entering. The housing 104 and the base 102 cooperate to form the overall frame of the compressor.

[0045] The crankcase 1042 is provided with a cylinder bore therein, and a piston 1044 reciprocates within the cylinder bore along the direction of the second axis 122. The rotation of the crankshaft drives the piston 1044 to reciprocate, thereby achieving a gas compression process. The reciprocating motion of the piston 1044 compresses the refrigerant gas within the cylinder, thus achieving a refrigeration cycle.

[0046] It should be emphasized that the movement direction of the piston 1044 is the direction of the second axis 122. By limiting the angle formed between the second axis 122 and the first axis 120 of the base 102, the movement can be arranged at an angle, effectively saving space.

[0047] Specifically, first axis 120 and second axis 122 intersect, forming an acute angle ≥ 10°. First axis 120 extends in the direction of base 102, while second axis 122 aligns with the direction of motion of piston 1044. This intersecting axis prevents the movement and base 102 from overlapping, and the space for piston 1044 to move is offset from the space where base 102 is mounted, reducing spatial conflicts. Furthermore, the tilted arrangement reduces the size of the compressor, facilitating miniaturization.

[0048] In summary, this solution optimizes the space for the movement and overall structure by arranging the piston 1044's motion axis (second axis 122) and the base 102's axis (first axis 120) at an angle (acute angle ≥ 10°) to achieve miniaturization. The base 102 and its connecting legs 1022 ensure secure installation and vibration control, while the housing 104 and crankcase 1042 provide protection and support for the movement. The precise reciprocating motion of the piston 1044 ensures compression efficiency. The overall structural design balances performance, volume, manufacturing cost, and service life, meeting the requirements of modern refrigerators and other refrigeration equipment for small, efficient compressors.

[0049] Furthermore, the acute angle formed by the intersection of the first axis 120 and the second axis 122 is no greater than 45°.

[0050] In some embodiments, housing 104 may optionally be provided with mounting holes 1062 parallel to first axis 120 to facilitate assembly of wiring structure 1064. Furthermore, since mounting holes 1062 extend parallel to first axis 120, external wiring connections are more easily achieved after wiring structure 1064 is mounted in mounting holes 1062. This arrangement aligns the orientation of mounting holes 1062 with the connection pins 1022 of base 102, ensuring consistent installation and positioning.

[0051] Furthermore, the wiring structure 1064 is divided into two parts. The internal part of the housing 104 is responsible for connecting to the electrical components such as the motor stator inside the compressor to complete the transmission of electrical signals and power supply. The external part of the housing 104 serves as an interface for external power and control signals, facilitating connection with external circuits.

[0052] Through the reasonable layout of internal and external wiring parts, the space occupied by electrical circuits is reduced and conflicts with other mechanical components are avoided.

[0053] The wiring structure 1064 includes a socket component located inside the housing 104 and a wiring terminal located outside the housing 104 , which are electrically connected.

[0054] In some embodiments, the suction muffler 108 is optionally located at one end of the crankcase 1042 along the second axis 122 (i.e., the direction of motion of the piston 1044), typically near the cylinder head. The suction muffler 108 is designed to be within the housing 104, fully utilizing the space within the housing 104. The suction muffler 108 primarily serves to reduce noise during the compressor's suction process, improving the equipment's quietness. The internal muffler structure smoothes the refrigerant flow, reduces eddy currents and pulsation, and improves compression efficiency.

[0055] Partial mounting holes 1062 and portions of intake muffler 108 are located on either side of second axis 122, creating a reasonable spatial separation. The design of being located at one end of crankcase 1042 and distributed on both sides of second axis 122 fully utilizes the space within housing 104 and avoids wasted space. The placement of intake muffler 108 and mounting holes 1062 on either side of second axis 122 effectively prevents interference between the mechanical mounting structure and the muffler components, ensuring their independent functionality without interfering with each other.

[0056] By limiting the relative positions of the suction muffler 108 and the mounting holes 1062 , the mounting holes 1062 and the muffler are reasonably distributed, which facilitates mechanical fixation and electrical connection, thereby ensuring smooth assembly.

[0057] The suction muffler 108 and the mounting hole 1062 are distributed on both sides of the second axis 122 to avoid space conflict and achieve a compact structure and complete functions.

[0058] In general, by arranging the mounting hole 1062 and the suction muffler 108 on both sides of the second axis 122 , spatial overlap and mutual interference between components are avoided.

[0059] In some embodiments, optionally, another portion of the intake silencer 108 and at least a portion of the mounting hole 1062 are arranged on the same side of the first axis 120, that is, the intake silencer 108 is not completely distributed on both sides of the second axis 122, but there is a portion on the same side as the mounting hole 1062, and both are distributed along the first axis 120. An avoidance structure 1082 is provided on the portion of the intake silencer 108 arranged on the same side to avoid interference with the wiring structure 1064 or other mechanical components installed on the mounting hole 1062.

[0060] Mounting holes 1062 are arranged along first axis 120, and another portion of suction muffler 108 is also arranged on the same side of the first axis 120, so that suction muffler 108 and mounting hole 1062 are spatially adjacent to or overlap with each other along first axis 120. Placing a portion of suction muffler 108 on the same side as mounting hole 1062 optimizes space utilization within housing 104, avoids wasted and fragmented space, and enhances the compactness of housing 104's interior layout through this same-side layout.

[0061] The suction muffler 108 is provided with relief structures 1082, such as grooves, cutouts, protrusions, or thinned areas, at locations where interference with mechanical structures, such as the mounting hole 1062 or the connecting leg 1022, may occur. This ensures sufficient clearance between the suction muffler 108 and the mounting hole 1062 and other mechanical components to prevent collision during assembly or friction during operation. Furthermore, relief structures 1082 provide a certain mechanical tolerance, reducing assembly difficulty and machining precision requirements. When the suction muffler 108 and the mounting hole 1062 are arranged on the same side, relief structures 1082 ensure that their functions and structures do not interfere with each other. This helps achieve a compact structure while ensuring mechanical strength and airflow performance.

[0062] For example, first axis 120 represents the mounting direction (horizontal) of base 102, and second axis 122 represents the movement direction (inclined) of piston 1044. A portion of intake muffler 108 is located at one end of crankcase 1042, distributed on both sides along second axis 122. Another portion of intake muffler 108 and mounting hole 1062 are located on the same side of first axis 120, possibly near a side surface of housing 104.

[0063] On this side, the suction muffler 108 is provided with an avoidance structure 1082 that bypasses the mounting hole 1062 or the connection foot 1022 to ensure non-interference.

[0064] In some embodiments, there is optionally a sufficient gap between the outer wall of the limiting avoidance structure 1082 and the wiring structure 1064, such as Figure 1The minimum distance L1 shown is greater than or equal to 2 mm, which can prevent mechanical vibration or thermal expansion and contraction from causing contact between the two, avoiding electrical short circuits, wear or damage. In addition, it can also prevent wear of insulation materials, reduce the risk of electrical failure, and ensure safe operation of the compressor.

[0065] The outer wall of the relief structure 1082 refers to the outer surface of the groove, cutout, or deformed portion of the suction muffler 108 that is provided to provide clearance for other components within the housing 104 (e.g., the mounting hole 1062 and the connecting pin 1022). The partial wiring structure 1064 within the housing 104 refers to the electrical connection portion disposed within the housing 104, typically including wires, terminal blocks, and motor lead interfaces.

[0066] In some embodiments, the air intake pipe 110 is optionally provided on the housing 104 and is disposed opposite to the air intake port 1084 of the air intake muffler 108. The air intake pipe 110 and the mounting hole 1062 are located on either side of the second axis 122, respectively.

[0067] The exhaust pipe 112 is provided on the shell 104, and the intake pipe 110 and the exhaust pipe 112 are arranged at both ends of the shell 104 along the second axis 122. Specifically, they can be symmetrically or balanced along the second axis 122 (i.e., the movement direction of the piston 1044) to achieve reasonable flow of airflow, reduce airflow interference and pressure loss, and make the airflow paths of intake and exhaust clear, which is beneficial to gas flow efficiency and noise control.

[0068] The intake pipe 110 is arranged opposite to the intake port 1084 of the intake muffler 108, so that the air flow from the intake pipe 110 through the muffler into the crankcase 1042 flows in an orderly manner. The exhaust pipe 112 is arranged at the other end to ensure efficient discharge of gas and reduce backflow and pressure fluctuations.

[0069] The intake pipe 110 and the exhaust pipe 112 arranged at both ends facilitate rapid gas circulation, reduce pressure fluctuations inside the compressor, and improve compression efficiency.

[0070] In some embodiments, an air intake port 1084 is optionally provided on the wall of the housing 104 of the air intake muffler 108 and serves as the entrance for the refrigerant gas to enter the muffler. A muffler duct 1086 is provided within the air intake port 1084. The muffler duct 1086 is an internal structure of the air intake port 1084 and is primarily used to reduce airflow noise. The muffler duct 1086 is internally designed with specific flow guidance and muffler structures (such as a porous plate, a baffle, a diffusion cavity, etc.) to achieve smooth airflow and noise attenuation.

[0071] The suction pipe 110 serves as an air intake channel for the refrigerant gas and is directly connected to the silencer pipe 1086 to ensure that the gas enters the silencer from the suction pipe 110. This connection ensures that the airflow path is continuous and has low resistance, avoiding airflow turbulence.

[0072] It should be emphasized that the air intake 1084 of this solution is arranged on the wall of the muffler, and the muffler pipe 1086 is embedded in the design, which can reduce unnecessary space occupation inside the shell 104, save space, and is conducive to the miniaturization of the compressor, and better meet the needs of compact refrigeration equipment.

[0073] This solution improves space utilization through the design of the embedded silencer duct 1086. Combined with the inclined arrangement of the movement and the reasonable layout of the shell 104, the overall compressor is smaller in size and has better performance.

[0074] In some embodiments, the restricting connecting legs 1022 are optionally symmetrical about the first axis 120, thereby improving the balance of the mechanical structure. The symmetrical arrangement can evenly distribute the weight of the compressor and the vibration forces generated during operation, reduce local stress concentration, improve the stability of the compressor during operation, and reduce vibration and noise. The symmetrical connecting legs 1022 facilitate positioning of the compressor during installation, ensure balanced equipment installation, and reduce installation errors.

[0075] The multiple connecting legs 1022 located at both ends of the first axis 120 of the base 102 are integrally structured. The connecting legs 1022 at both ends of the base 102 utilize an integrated design, meaning that the multiple connecting legs 1022 are connected by a single integral component or structure, forming a rigid, integrated structure. This integrated structure enhances the overall rigidity and strength of the connecting legs 1022, preventing loosening or fatigue damage caused by multiple component connections, and enhancing the load-bearing capacity and seismic resistance of the base 102. Furthermore, the integrated structure reduces the number of parts and assembly steps, thereby lowering manufacturing costs and assembly complexity.

[0076] Furthermore, the integrated structure can be realized by using processes such as casting, stamping or welding.

[0077] In some embodiments, a plurality of support legs 114 are optionally provided at the bottom of the crankcase 1042 to support and secure the crankcase 1042, ensuring stable installation of the movement. The suction muffler 108 is located at one end of the crankcase 1042 along the second axis 122 (the direction of motion of the piston 1044). The number of support legs 114 near the suction muffler 108 is greater than the number of support legs 114 farthest from the muffler.

[0078] It can be understood that the crankcase 1042 has more supporting legs 114 closer to the suction muffler 108 to provide stronger support.

[0079] Furthermore, if the number of the supporting legs 114 is three, the number of the supporting legs 114 in the direction of the crankcase 1042 close to the intake muffler 108 may be two, and the number of the supporting legs 114 in the other direction may be one.

[0080] Due to uneven mass distribution, the crankcase 1042, the intake muffler 108 and related components are usually heavier, resulting in an increase in the overall weight of the crankcase 1042 at that end. More support legs 114 are needed to share the load at that end to avoid structural deformation or vibration.

[0081] The end with more supporting legs 114 obtains a larger supporting area and bearing capacity, thereby preventing tilting or shaking caused by weight concentration and ensuring the levelness and stability of the crankcase 1042 and the entire movement.

[0082] On the one hand, by rationally distributing support legs 114, the weight of crankcase 1042 and the movement is balanced, reducing mechanical vibration during operation, minimizing resonance or localized stress concentration caused by insufficient support, and extending the life of the compressor. On the other hand, the uneven arrangement of support legs 114 minimizes the overall volume of housing 104, making reciprocating compressor 100 even more compact.

[0083] In general, this solution reasonably shares the weight by providing multiple support legs 114 at the bottom of the crankcase 1042, and providing more support legs 114 near the end of the heavier intake muffler 108, thereby improving the mechanical stability and operational reliability of the movement and effectively avoiding vibration and deformation problems caused by uneven mass.

[0084] like Figure 3 As shown, the present invention also provides an embodiment of a refrigeration device 200 that integrates the aforementioned reciprocating compressor 100, which features an inclined layout, space-optimized design, rationally arranged support legs, and optimized suction muffler and airflow piping. The inclined layout and space-optimized design of the compressor reduce the overall size of the device, making it suitable for small-scale household or commercial refrigeration applications.

[0085] It can be understood that since the refrigeration equipment 200 includes any of the above-mentioned reciprocating compressors, it has the beneficial effects of any of the above-mentioned reciprocating compressors, which will not be described in detail here.

[0086] The refrigeration equipment 200 includes but is not limited to refrigerators, air conditioners, freezers and other equipment with refrigeration effects.

[0087] In a specific embodiment, a new miniaturized reciprocating compressor is provided in which a core is tiltedly arranged in a lower housing component.

[0088] Among them, the above-mentioned reciprocating compressor includes a crankcase, a piston, an intake muffler, a stator component, a lower shell component, etc. The lower shell component includes a lower shell (i.e., a shell), a base, a terminal, etc., and the direction of the base is parallel to the direction of the terminal.

[0089] There are three support feet under the crankcase of the movement, two of which are on the heavier side close to the cylinder head (cylinder / piston / muffler).

[0090] like Figure 1 As shown, the reciprocating motion direction of the piston in the movement forms an angle A with the direction of the base, which satisfies 10°≤A≤45°.

[0091] The lower shell is provided with a terminal mounting hole on one side close to the cylinder head of the movement, and the center line of the terminal mounting hole is parallel to the direction of the base.

[0092] The lower shell is provided with an intake pipe, an exhaust pipe and a process pipe. The intake pipe is provided on one side of the cylinder head close to the movement, and the exhaust pipe is provided on the other side away from the movement.

[0093] After the crankcase is tilted, the motor socket components and terminal blocks are located on the left side below the cylinder head of the crankcase, and the intake muffler is located on the right side below the cylinder head;

[0094] A relief structure is provided on the side of the muffler component facing the socket component, such as Figure 1 As shown, the minimum distance between the two is L1, satisfying 2mm≤L1;

[0095] like Figure 2 As shown, the suction port of the compressor muffler is set on its own wall, and the suction guide silencer pipe is set inside the muffler; at the same time, the muffler is designed to prevent oil from being sucked into the suction port; an oil baffle ring is set above the suction port of the muffler, and an oil baffle plate, oil guide groove, etc. are designed on the upper wall of the muffler;

[0096] In general, the present invention provides a miniaturized reciprocating compressor in which the movement is arranged at an angle in the lower shell component. The movement includes a crankcase, a piston, an intake muffler, a stator component, etc. The lower shell component includes a lower shell, a base, a terminal block, etc., and the direction of the base is parallel to the direction of the terminal block. The crankcase is provided with a cylinder hole, and the piston reciprocates in the cylinder hole. The crankcase is arranged at an angle in the shell so that the reciprocating direction of the piston forms a certain angle with the direction of the base of the lower shell. After the crankcase is arranged at an angle, the terminal block is located on the left side below the cylinder head, and the intake muffler is arranged on the right side below the cylinder head, which can make full use of the space inside the shell and realize a miniaturized design. A avoidance structure is provided on the side of the muffler component facing the socket component, and the muffler intake port is provided on its own wall surface, and a design is made to prevent the intake port from absorbing oil from the wall surface, which saves installation space inside the shell compared to an external intake port. Compared with traditional reciprocating compressors, this can save installation space and realize the miniaturization design of the compressor; the compressor has the advantages of simple structure, low cost, smaller size and better practicality.

[0097] In the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0098] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0099] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0100] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A reciprocating compressor, characterized in that: include: A base, wherein at least one connecting foot is provided at each end of the base along the first axis; a shell, disposed on the base, wherein a crankcase is disposed in the shell; a piston, wherein the piston performs linear reciprocating motion in the crankcase along a second axis; The first axis intersects the second axis, and an acute angle formed by the intersection of the first axis and the second axis is not less than 10°.

2. The reciprocating compressor according to claim 1, wherein Also includes: a mounting hole, provided on the housing, the mounting hole extending in a direction parallel to the first axis; A wiring structure is detachably connected to the mounting hole, a portion of the wiring structure is arranged inside the shell, and another portion of the wiring structure is arranged outside the shell.

3. The reciprocating compressor according to claim 2, wherein: Also includes: an intake muffler disposed in the housing, and the intake muffler is disposed at one end of the crankcase in the direction of the second axis; Wherein, at least part of the mounting holes and part of the suction muffler are respectively arranged on both sides of the direction of the second axis.

4. The reciprocating compressor according to claim 3, wherein Another portion of the suction muffler and at least a portion of the mounting holes are arranged on the same side of the first axis; Among them, the other part of the suction muffler is provided with an avoidance structure.

5. The reciprocating compressor according to claim 4, characterized in that The minimum distance between the outer wall surface of the avoidance structure and the portion of the wiring structure located in the shell is not less than 2 mm.

6. The reciprocating compressor according to claim 3, wherein Also includes: An air intake pipe is provided on the housing, and the air intake pipe is arranged opposite to the air intake port of the air intake muffler; an exhaust pipe, arranged on the shell; The intake pipe and the exhaust pipe are provided at two ends of the shell along the direction of the second axis, and the intake pipe and the mounting hole are respectively located on two sides of the direction of the second axis.

7. The reciprocating compressor according to claim 6, wherein: An air intake port is provided on the wall surface of the air intake muffler, and a muffler pipe is provided in the air intake port; Wherein, the silencer pipe is connected to the air intake pipe.

8. The reciprocating compressor according to any one of claims 1 to 7, characterized in that The connecting legs are symmetrical about the first axis; and / or The plurality of connecting legs located at both ends of the base at the first axis are an integrated structure.

9. The reciprocating compressor according to any one of claims 1 to 7, characterized in that: Also includes: A plurality of supporting legs are provided at the bottom of the crankcase; Wherein, in the direction of the second axis, an intake muffler is provided at one end of the crankcase, and the number of supporting legs at the end close to the intake muffler is greater than the number of supporting legs at the end away from the intake muffler.

10. A refrigeration device, characterized in that: include: The reciprocating compressor according to any one of claims 1 to 9.

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