Fixing apparatus for refrigerator compressor, engagement member and refrigerator

Abstract

The present disclosure provides a fixing apparatus for a refrigerator compressor, an engagement member, and a refrigerator. The fixing apparatus comprises a fixing column, a foot pad and an engagement member. The fixing column comprises a mounting column, a small diameter column, an end block and a positioning column, which are sequentially arranged from bottom to top. The diameters of the mounting column and the end block are both larger than the diameter of the small diameter column, so that an annular recess is formed at the small diameter column of the fixing column. The foot pad is mounted on the mounting column. The engagement member comprises an upper press plate, a lower press plate, and a transition portion connected to the upper press plate and the lower press plate. The upper press plate is provided with a positioning hole. The lower press plate is provided with an opening extending through the end of the lower press plate away from the transition portion. When the small diameter column is inserted into the opening, the positioning column is sleeved in the positioning hole, so that the end block is sandwiched between the upper press plate and the lower press plate. The lower press plate and the foot pad are spaced apart, and the end block is sandwiched between the upper press plate and the lower press plate of the engagement member, such that after being fixed, the engagement member does not vibrate due to loosening of engagement at the opening of the lower press plate, and does not cause abrasion of the foot pad or press the foot pad, causing the foot pad to deform.

Description

Fixing device for refrigerator compressor, card and refrigerator Technical Field

[0001] The present disclosure relates to the technical field of refrigerators, and in particular to a fixing device for a refrigerator compressor, a card, and a refrigerator. Background Art

[0002] The compressor is the core component of a refrigerator's refrigeration system. The energy of the compressor's vibration varies when it operates at different speeds. To minimize the impact of compressor vibration on the refrigerator, refrigerators typically include a compressor mounting plate, foot pads, rivet studs, and a card. During installation, the foot pads are typically first attached to the compressor mounting plate using the rivet studs, and then the compressor is mounted on the vibration-damping foot pads. The card, typically a flat plate, is mounted on the rivet studs and positioned above the foot pads, contacting and squeezing the pads to prevent the card from falling off. The card also prevents the compressor from vibrating or falling off the rivet studs on the compressor mounting plate during transport.

[0003] Summary of the Invention

[0004] The present disclosure provides a fixing device for a refrigerator compressor, a card, and a refrigerator.

[0005] Specifically, the present disclosure provides a fixing device for a refrigerator compressor, comprising:

[0006] A fixing column, the fixing column comprising a mounting column, a notched column, an end block and a positioning column arranged in sequence from bottom to top, wherein the diameters of the mounting column and the end block are both larger than the diameter of the notched column, so that the fixing column forms an annular groove at the notched column;

[0007] a foot pad, the foot pad being mounted on the mounting post;

[0008] The card comprises an upper pressing plate, a lower pressing plate, and a transition portion connecting the upper pressing plate and the lower pressing plate; the upper pressing plate is provided with a positioning hole; the lower pressing plate is provided with an opening, the opening passing through an end of the lower pressing plate away from the transition portion;

[0009] When the notch column is inserted into the opening, the positioning hole is sleeved on the positioning column so that the end block is located between the upper pressing plate and the lower pressing plate, and the upper pressing plate and the lower pressing plate clamp the end block; the lower pressing plate is spaced apart from the foot pad.

[0010] Optionally, the fixing column passes through the foot pad; the foot pad is provided with a support block, a connecting column and a limiting block in sequence from bottom to top, and the diameters of the support block and the limiting block are both larger than the diameter of the connecting column.

[0011] Optionally, the lower pressure plate is a flat plate; the upper pressure plate is connected to one end of the transition part and the height of the corresponding other end is higher than the position where the positioning hole is opened in the upper pressure plate; the transition part is an arc-shaped plate with an axis extending in the horizontal direction.

[0012] Optionally, the edge of the opening includes an arc segment and two symmetrically arranged straight segments, the arc segment connects the two straight segments, the arc segment is coaxial with the notch column and the positioning hole; the arc segment contacts and abuts against the notch column.

[0013] Optionally, the fixing column is a rivet column.

[0014] Optionally, the card is made of sheet metal steel or spring steel.

[0015] The present disclosure also provides a card, comprising an upper pressing plate, a lower pressing plate, and a transition portion connecting the upper pressing plate and the lower pressing plate;

[0016] The upper pressing plate is provided with a positioning hole; the lower pressing plate is provided with an opening, and the opening passes through one end of the lower pressing plate away from the transition part; the transition part is an arc-shaped plate whose axis extends in the horizontal direction; the lower pressing plate is a flat plate; the upper pressing plate is connected to one end of the transition part and the height of the corresponding other end is higher than the position of the upper pressing plate where the positioning hole is opened; the edge of the opening includes an arc segment and two symmetrically arranged straight line segments, and the arc segment connects the two straight line segments.

[0017] The present disclosure also provides a refrigerator, comprising a compressor compartment and a refrigerator compressor located within the compressor compartment, the compressor compartment including a compressor mounting plate, and any of the aforementioned fixing devices for the refrigerator compressor. The refrigerator compressor is mounted on the foot pad; the lower end of the fixing column is mounted on the compressor mounting plate.

[0018] Optionally, the refrigerator compressor includes a casing and a foot connected to the casing;

[0019] The machine foot is plate-shaped and is provided with a circular hole. The diameter of the circular hole is smaller than the diameters of the supporting block and the limiting block. The machine foot is installed on the connecting column through the circular hole.

[0020] Optionally, the compressor compartment also includes two silencers; each of the two silencers includes a silencer body, a through hole penetrating the silencer body is provided on the side wall of the silencer body, at least one silencer cavity is provided inside the silencer body, and at least one sound absorption hole is provided on the peripheral wall of the through hole, and each of the sound absorption holes is connected to at least one of the silencer cavities; the compressor compartment also includes a compartment wall, and the compartment wall of the compressor compartment includes a left wall, a right wall and a top wall, the first silencer of the two silencers is installed on the left wall, and the second silencer of the two silencers is installed on the right wall, accordingly, a first through hole corresponding to the first through hole of the first silencer is provided on the left wall, and a second through hole corresponding to the second through hole of the second silencer is provided on the right wall; the central axis of the first through hole is located between the top of the compressor and the top wall of the compartment wall, and the second through hole is lower than the first through hole.

[0021] In the fixing device for a refrigerator compressor disclosed herein, since the fixing column is used to fix the refrigerator compressor in the refrigerator, a foot pad is provided under the refrigerator compressor to reduce the noise generated by the vibration of the compressor. A card is installed on the upper end of the fixing column to prevent the compressor from falling out. When the opening of the lower pressure plate and the positioning hole of the upper pressure plate are respectively installed on the notched column and the positioning column, the upper pressure plate and the lower pressure plate of the card clamp the end block of the fixing column to fix the card on the positioning column, thereby reducing the circumferential rotation of the card caused by vibration, and further reducing the noise generated by the card due to vibration. Moreover, the lower pressure plate of the card is spaced apart from the foot pad, which will not cause wear or deformation of the foot pad, that is, the card will not affect the foot pad due to vibration.

[0022] Furthermore, the upper card pressing plate and the lower card pressing plate clamp and fix the column end block, so that the card will not be tilted after installation and abnormal resonance will not occur.

[0023] Furthermore, after the refrigerator or the like is assembled, whether the refrigerator or the like is a qualified product can be determined based on whether there is a gap between the lower pressure plate and the foot pad.

[0024] Furthermore, in a card disclosed herein, the upper and lower pressure plates cooperate to securely attach to the mounting post, preventing the card from rotating circumferentially and potentially damaging the mounting mechanism. Designing the lower pressure plate as a flat plate saves space, reduces collision with the foot pad, and provides a strong barrier. One end of the upper pressure plate's transition section is higher than the location where the positioning hole is located, ensuring excellent clamping force on the card.

[0025] Furthermore, in a refrigerator disclosed herein, the refrigerator compressor is mounted on the compressor mounting plate using a fixing device for refrigerator compressors. This allows the refrigerator compressor to be fixed to the compressor mounting plate, and prevents the card from tilting and squeezing the foot pad, thereby preventing deformation and reducing the vibration damping performance of the foot pad. Furthermore, the card is fastened to the mounting post, preventing abnormal resonance.

[0026] Based on the following detailed description of the specific embodiments of the present disclosure in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Hereinafter, some specific embodiments of the present disclosure will be described in detail in an illustrative and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale.

[0028] FIG1 is a schematic structural diagram of a fixing device for a refrigerator compressor according to one embodiment of the present disclosure.

[0029] FIG2A is a schematic structural diagram of a card according to an embodiment of the present disclosure.

[0030] FIG2B is a schematic structural diagram of a card according to an embodiment of the present disclosure.

[0031] FIG3A is a schematic structural diagram of a fixing device for a refrigerator compressor according to a disclosed embodiment.

[0032] FIG3B is a schematic structural diagram of a card and a fixing post provided according to a disclosed embodiment.

[0033] FIG4 is a schematic structural diagram of a refrigerator according to an embodiment of the present disclosure.

[0034] FIG5 is a schematic structural diagram of the interior of a compressor compartment according to one embodiment of the present disclosure.

[0035] FIG6 is a schematic structural diagram of a noise reduction device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The following describes a fixing device, a card and a refrigerator for a refrigerator compressor according to an embodiment of the present disclosure with reference to the accompanying drawings. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0037] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0038] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. 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 appropriate manner in any one or more embodiments or examples.

[0040] In the prior art, manual card installation is often used during refrigerator assembly. This doesn't guarantee accurate alignment between the card and the rivet studs, potentially causing the card to tilt and compress the foot pads, causing them to deform and significantly weaken their vibration damping properties. Furthermore, ensuring the card is correctly seated on the rivet studs often requires additional manual inspection, which is time-consuming and labor-intensive.

[0041] Furthermore, during refrigerator operation, due to manufacturing or assembly deviations, as well as long-term use, the card and rivet stud may become too loose, causing the card to rotate around the stud, which can easily produce a knocking noise when the compressor is running. Furthermore, if the card is installed at an angle, it may also cause abnormal resonance during refrigerator operation.

[0042] Figure 1 is a schematic structural diagram of a fixing device for a refrigerator compressor according to an embodiment of the present disclosure. As shown in Figure 1, and with reference to Figures 2A to 5, an embodiment of the present disclosure provides a fixing device for a refrigerator compressor, including a fixing column 200, a foot pad 300 and a card 100.

[0043] The fixing post 200 includes a mounting post 240, a notched post 230, an end block 220, and a positioning post 210. The diameters of the mounting post 240 and the end block 220 are larger than the diameter of the notched post 230, so that the fixing post 200 forms an annular groove at the notched post 230.

[0044] The foot pad 300 is mounted on the mounting post 240 .

[0045] The card 100 includes an upper pressing plate 110, a lower pressing plate 120, and a transition portion 130 connecting the upper pressing plate 110 and the lower pressing plate 120. The upper pressing plate 110 is provided with a positioning hole 111. The lower pressing plate 120 is provided with an opening 121, which passes through the end of the lower pressing plate 120 away from the transition portion 130.

[0046] When the notch column 230 is inserted into the opening 121, the positioning hole 111 is fitted on the positioning column 210, so that the end block 220 is located between the upper pressing plate 110 and the lower pressing plate 120, and the upper pressing plate 110 and the lower pressing plate 120 clamp the end block 220. The lower pressing plate 120 is spaced apart from the foot pad 300.

[0047] The fixing device is used to fix the refrigerator compressor 410 in the compressor compartment 400 of the refrigerator. During installation, the foot pad 300 is first installed on the fixing column 200, and then the fixing column 200 is installed in the compressor compartment 400, and then the refrigerator compressor 410 is installed on the foot pad 300. Then, the card 100 is installed on the upper end of the fixing column 200. Specifically, the upper pressing plate 110 and the lower pressing plate 120 are first opened, and then the opening 121 of the lower pressing plate 120 of the card 100 is inserted into the annular groove, and the upper pressing plate 110 is loosened so that the positioning hole 111 is fitted on the positioning column 210, and the card 100 is installed on the upper end of the fixing column 200. At this time, the upper pressing plate 110 and the lower pressing plate 120 clamp and tighten the end block 220, and the lower pressing plate 120 is spaced apart from the foot pad 300.

[0048] In this embodiment, since the upper pressing plate 110 and the lower pressing plate 120 clamp the end block 220 after installation, even if the card 100 tilts during installation, the lower pressing plate 120 can be adjusted to a non-tilted position after installation, ensuring that the lower pressing plate 120 will not tilt due to installation. Moreover, since the lower pressing plate 120 of the card 100 is spaced apart from the foot pad 300, even if the card 100 tilts slightly during installation, it will not touch the foot pad 300, thus avoiding damage to the foot pad 300 and improving installation convenience. This spacing also provides space for the lower pressing plate 120 to adjust from tilting to non-tilting, avoiding interference between the card 100 and the foot pad 300, and not damaging the foot pad 300, thereby ensuring the lifespan and shock absorption effect of the foot pad 300. In addition, the provision of the opening 121 allows the card 100 to be installed on the fixed column 200 from any direction, making installation faster and more convenient.

[0049] Furthermore, after the refrigerator is assembled, it can be determined whether the refrigerator is a qualified product by checking whether there is a gap between the lower pressing plate 120 and the foot pad 300. Due to the gap, the inspection can be performed by machine, i.e., no manual inspection is required, saving manpower.

[0050] Furthermore, during transportation of the refrigerator, the foot pad 300 may move upward due to vibration or other factors. In this case, the card 100 is positioned above the foot pad 300, preventing it from falling out. In other words, the presence of the card 100, along with its lower pressure plate 120, prevents the foot pad 300 from falling out, thereby preventing the compressor 410 from falling out. Of course, even if the foot pad 300 moves upward under other circumstances, the card 100 will prevent it from falling out.

[0051] During refrigerator operation, the compressor 410 itself generates vibrations. The foot pad 300 mitigates the noise generated by the compressor 410's vibrations. Furthermore, the vibrations generated by the compressor 410 are transmitted to the card 100 via the fixing post 200. Because the card 100's upper and lower pressure plates 110 and 120 clamp the end blocks 220 of the fixing post 200, the card 100 is secured to the fixing post 200. During compressor 410 operation, the card 100 does not move relative to the fixing post 200. Even if manufacturing or assembly variations occur, or if the mating surface between the card 100 and the fixing post 200 becomes too large or too loose after a period of use, the card 100 will not rotate due to vibrations. Consequently, when the compressor 410 is operating, the card 100 will not collide with the fixing post 200 and generate noise. Since the card 100 does not tilt during installation, abnormal resonance will not occur during compressor 410 operation. Furthermore, due to the presence of the gap, when the compressor 410 vibrates, the card 100 does not contact the foot pad 300, thereby preventing wear or deformation of the foot pad 300. This means that the lower pressing plate 120 has essentially no effect on the foot pad 300. Furthermore, due to the presence of the gap, even if the card 100 is slightly deformed or becomes slightly loose after prolonged use, the presence of the gap ensures that the lower pressing plate 120 has essentially no effect on the foot pad 300, thereby preventing damage to the foot pad 300.

[0052] In some embodiments of the present disclosure, as shown in FIG1 , a fixing post 200 extends through a foot pad 300. The foot pad 300 includes a support block 330, a connecting post 320, and a stop block 310, arranged sequentially from bottom to top. The diameters of the support block 330 and the stop block 310 are both larger than the diameter of the connecting post 320. The compressor foot 411 is mounted on the connecting post 320 of the foot pad 300 and located between the support block 330 and the stop block 310. This further prevents the compressor 410 from falling out.

[0053] In some embodiments of the present disclosure, as shown in Figures 1 to 3B , the lower pressing plate 120 is a flat plate, which saves space and is less likely to collide with the foot pad 300 .

[0054] In some embodiments of the present disclosure, as shown in Figures 1 to 3B , the end of the upper pressing plate 110 connected to the transition portion 130 is higher than the portion of the upper pressing plate 110 where the positioning hole 111 is provided. During installation, since the portion where the positioning hole 111 is provided is lower than the end of the upper pressing plate 110 connected to the transition portion 130, clamping is facilitated, allowing the card 100 to be fastened to the end block 220.

[0055] In some embodiments of the present disclosure, as shown in Figures 1 to 3B , the height of the other end of the upper pressing plate 110 corresponding to one end connected to the transition portion 130 is higher than the location where the positioning hole 111 is provided on the upper pressing plate 110. This other end can serve as a guide, allowing the upper pressing plate 110 to automatically open under the obstruction of the positioning post 210, facilitating the installation of the card 100 on the fixing post 200. Of course, since the height of the other end of the upper pressing plate 110 corresponding to one end connected to the transition portion 130 is higher than the location where the positioning hole 111 is provided on the upper pressing plate 110, it is also possible to lift this end by hand or with a tool to install the card 100 on the fixing post 200. This design is convenient for the user to operate and facilitates the installation and removal of the card 100.

[0056] In some embodiments of the present disclosure, as shown in FIG. 1 to FIG. 3B , the transition portion 130 is an arc-shaped plate with an axis extending in a horizontal direction.

[0057] In some embodiments of the present disclosure, the edge of the lower pressing plate 120 is outside the projected edge of the limit block 310 on the horizontal plane. The edge of the lower pressing plate 120 is larger than the maximum edge of the limit block 310 so that the pressure exerted by the lower pressing plate 120 on the limit block 310 is minimized when the lower pressing plate 120 contacts the limit block 310, thereby reducing damage to the foot pad 300.

[0058] In some embodiments of the present disclosure, as shown in Figures 2A and 2B, the edge of the opening 121 includes an arc segment and two symmetrically arranged straight segments. The arc segment connects the two straight segments and is coaxial with the notched column 230 and the positioning hole 111. The arc segment contacts and abuts the notched column 230. The two straight segments are tangent to the arc segment.

[0059] Furthermore, the diameter of the arc segment is no greater than the diameter of the notched column 230 , so that the card 100 is clamped on the fixing column 200 .

[0060] In some embodiments of the present disclosure, the fixing column 200 is a rivet column, which is simpler to fix than a stud.

[0061] In some embodiments of the present disclosure, the card 100 is made of sheet metal steel.

[0062] In other embodiments of the present disclosure, the card 100 is made of spring steel.

[0063] As shown in FIG. 2A and FIG. 2B , the present disclosure provides a card 100 including an upper pressing plate 110 , a lower pressing plate 120 , and a transition portion 130 connecting the upper pressing plate 110 and the lower pressing plate 120 .

[0064] The upper pressing plate 110 is provided with a positioning hole 111. The lower pressing plate 120 is provided with an opening 121, which passes through an end of the lower pressing plate 120 away from the transition portion 130.

[0065] In some embodiments of the present disclosure, the transition portion 130 is an arc-shaped plate with a horizontally extending axis. The lower pressing plate 120 is a flat plate. The upper pressing plate 110 is connected to one end of the transition portion 130 and the corresponding other end at a height higher than the location of the positioning hole 111 in the upper pressing plate 110. The edge of the opening 121 includes an arc segment and two symmetrically arranged straight segments, with the arc segment connecting the two straight segments.

[0066] The present disclosure provides a refrigerator 600, as shown in FIG4 , including a compressor compartment 400 and a refrigerator compressor 410 located within the compressor compartment 400. The compressor compartment 400 includes a mounting plate 420 for the compressor 410. In some embodiments, the refrigerator 600 further includes a fixing device according to any of the above embodiments. The lower end of the fixing column 200 is mounted to the mounting plate 420 of the compressor 410. The refrigerator compressor 410 is mounted on a foot pad 300.

[0067] The refrigerator compressor 410 is mounted to the compressor mounting plate 420 via a fixing device, securing the refrigerator compressor 410 to the mounting plate 420. A foot pad 300 is positioned beneath the refrigerator compressor 410 to reduce noise generated by the vibration of the compressor 410. This prevents the card 100 from deforming due to compression caused by tilting the card 100, nor does it compress the foot pad 300 due to vibration, thereby maintaining the vibration-damping properties of the foot pad 300. Furthermore, the card 100 is securely fastened to the fixing post 200, preventing any abnormal resonance.

[0068] In some embodiments of the present disclosure, as shown in FIG5 , a refrigerator compressor 410 includes a housing and a foot 411 connected to the housing. The foot 411 is plate-shaped and is provided with a circular hole. The diameter of the circular hole is smaller than the diameter of the support block 330 and the limit block 310, and the diameter of the circular hole is larger than the diameter of the connecting column 320. The foot 411 is mounted on the connecting column 320 through the circular hole. During installation, the circular hole can pass through the limit block 310 of the foot pad 300 and be mounted on the connecting column 320 of the foot pad 300, and is located between the limit block 310 and the support block 330, thereby fixing the compressor 410.

[0069] In some embodiments of the present disclosure, as shown in Figures 4 and 6, a refrigerator 600 further includes a muffler 500. The muffler 500 includes a muffler body 520. A through hole 510 is defined on a side wall of the muffler body 520 and extends through the muffler body 520. The muffler body 520 includes at least one muffler cavity. The through hole 510 is defined on a peripheral wall thereof and includes at least one sound-absorbing hole 511. Each sound-absorbing hole 511 is connected to at least one muffler cavity.

[0070] When in use, the silencer 500 is installed inside the refrigerator 600 to reduce the noise inside the compressor compartment 400. Specifically, the silencer 500 can be placed inside or outside the compressor compartment 400, and the through hole 510 is connected to the internal space of the compressor compartment 400. When the noise inside the compressor compartment 400 propagates from the inside to the outside, the noise passes through the silencer 500 inside or outside the compressor compartment 400, and enters the silencer cavity through the through hole 510 and the sound absorption hole 511. Under the sound-absorbing effect of the silencer cavity, the noise is significantly reduced. In addition, the through hole 510 of the silencer body also has the function of heat dissipation, which can transfer the heat inside the compressor compartment 400 to the outside of the compressor 410.

[0071] In some embodiments of the present disclosure, at least one muffler cavity has a labyrinthine structure.

[0072] In this embodiment, compared with the silencer cavity of the acoustic flow structure, honeycomb structure or straight tube structure, the silencer cavity of the labyrinth structure is deeper, which can significantly extend the sound propagation path and constitute an acoustic superstructure, thereby further improving the noise reduction effect of the silencer device 500.

[0073] In other embodiments of the present disclosure, at least one muffler cavity has an acoustic flow structure.

[0074] In some other embodiments of the present disclosure, at least one muffler cavity has a honeycomb structure.

[0075] In other embodiments of the present disclosure, at least one muffler cavity has a straight pipe structure.

[0076] In some embodiments of the present disclosure, the sound-absorbing body is a sound-absorbing metamaterial.

[0077] Specifically, the sound-absorbing metamaterial (MAT metamaterial, short for Metamaterial Absorption Technology) utilizes a highly effective synthetic material with a complex maze-like pattern. Each channel of the maze absorbs specific frequencies, resulting in a sound absorption efficiency of up to 99%. Furthermore, compared to conventional sound-absorbing materials, the sound-absorbing metamaterial is chemically more stable and safer, odorless, flexible, fire-retardant, mildew-resistant, and has a pleasant feel and heft.

[0078] In some embodiments of the present disclosure, the muffler body is made of ABS (Acrylonitrile butadiene styrene) material.

[0079] In some embodiments of the present disclosure, as shown in FIG4 , the compressor compartment 400 includes a left wall, a right wall, and a top wall. A muffler 500 is mounted on each of the left and right walls, and corresponding holes are provided in the corresponding compartment walls, corresponding to the through-holes. The through-holes 510 of the two mufflers 500 are respectively a first through-hole and a second through-hole. The central axis of the first through-hole is located between the top of the compressor 410 and the top wall of the compartment, and the second through-hole is lower than the first through-hole.

[0080] In this embodiment, because the through holes 510 of the two silencers 500 are asymmetrically structured, when the compressor 410 is operating, based on the principle that hot air has a lower density than cold air and automatically rises, the high-temperature airflow within the compressor compartment 400 automatically flows upward and is discharged from the compressor compartment 400 through the first through hole. This simultaneously creates a negative pressure at the bottom of the compressor compartment 400. Under the influence of atmospheric pressure, outside air enters the compressor compartment 400 through the lower through hole 510. In other words, the upper first through hole serves as the airflow outlet, and the lower second through hole serves as the airflow inlet, thereby forming an airflow that penetrates the compressor compartment 400, quickly removing heat from the compressor compartment 400 and achieving excellent heat dissipation. In summary, compared to the symmetrical through-holes 510 of the two silencers 500, the asymmetrical through-holes 510 of the two silencers 500 can form a smooth air path for heat flow lines within the compressor compartment 400 when no fan is present within the compressor compartment 400, thereby improving the heat dissipation efficiency of the compressor compartment 400 and, in turn, increasing the service life of the compressor 410. Furthermore, because the central axis of the first through-hole is located between the top of the compressor 410 and the top wall of the compartment, this not only provides a precise reference for the design and manufacture of the first through-hole, facilitating the manufacture and assembly of the silencer 500 on the outlet side of the compressor compartment 400, but also facilitates the discharge of high-temperature gases from the compressor compartment 400.

[0081] In some embodiments of the present disclosure, the silencer body 520 is a split structure. The silencer body 520 is divided into a first body and a second body along its thickness direction. The silencer cavity is enclosed by the first body and the second body.

[0082] During the manufacturing process, the first and second bodies are manufactured separately. After the first and second bodies are manufactured separately, they are assembled together to form the silencer 500. During this separate manufacturing process, multiple silencer cavities of varying lengths, widths, and heights are designed based on noise reduction requirements. These cavities of varying sizes correspond to different noise reduction pressure bands, thereby achieving better noise reduction results for the silencer 500.

[0083] In this embodiment, since the silencer body 520 is a split structure, a plurality of silencer cavities of different sizes are provided inside the silencer body 520, which is more conducive to absorbing noises of different frequencies.

[0084] In some embodiments of the present disclosure, the first body includes a first side panel, a peripheral wall, and a muffler cavity baffle located on the first side panel. The second body includes a second side panel and a slot located on the second side panel and plugged into the muffler cavity baffle. The first side panel, the muffler cavity baffle, the peripheral wall, and the second side panel collectively enclose a through hole 510 and the muffler cavity.

[0085] During the manufacturing and assembly process, the first and second bodies are first manufactured separately and then assembled together. Specifically, the muffler cavity baffle of the first body is inserted into the slot of the second body, and the peripheral wall of the first body is in contact with the second side plate of the second body, so that the first and second bodies together enclose the through hole 510 and the muffler cavity.

[0086] In this embodiment, since the muffler cavity partition is inserted into the slot, on the one hand, each muffler cavity can be made into a closed cavity, thereby improving the sealing effect and noise reduction effect of each muffler cavity. On the other hand, it also plays a positioning role, thereby improving the assembly efficiency of the first body and the second body.

[0087] In some embodiments of the present disclosure, the second side panel is provided with a ridge forming a slot, which can increase the depth of the slot, thereby increasing the size of the portion of the muffler cavity partition inserted into the slot, thereby further improving the sealing effect and noise reduction effect of each muffler cavity.

[0088] In some embodiments of the present disclosure, there is a gap between both sidewalls of the slot and the corresponding muffler cavity partition. Since the slot and the muffler cavity partition are fitted with a gap, the slot is easily inserted into place and the sealing of the muffler cavity is further improved, thereby achieving a better noise reduction effect.

[0089] In some embodiments of the present disclosure, the edge of the peripheral wall away from the first side plate is welded to the second side plate. Compared with fastening or clamping, welding can improve the sealing performance of the silencer 500, thereby achieving a better noise reduction effect.

[0090] Furthermore, the type of welding is vibration friction welding. Specifically, the edge of the peripheral wall away from the first side plate is fixedly connected to the second side plate by means of vibration friction welding. Vibration friction welding is a technology that uses the heat generated by interface friction caused by the relative vibration of two welds to achieve welding. The welds are placed on a specified device and vibrate and rub on the contact surface under a certain pressure until the interface begins to melt. The vibration is then stopped and the pressure is maintained until solidification, thereby achieving the welding purpose. By using vibration friction welding, the connection strength between the peripheral wall and the second side plate can be improved, and the welding speed can also be increased. No welding smoke and pollutants such as manganese and nickel that are harmful to the human body are generated during the welding process.

[0091] At this point, those skilled in the art will recognize that, although multiple exemplary embodiments of the present disclosure have been shown and described in detail herein, many other variations or modifications that are consistent with the principles of the present disclosure can be directly determined or derived from the contents of the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the scope of the present disclosure should be understood and deemed to cover all such other variations or modifications.

Claims

1. A fixing device for a refrigerator compressor, comprising: A fixed column, the fixed column comprising a mounting column, a notched column, an end block and a positioning column arranged in sequence from bottom to top; The diameters of the mounting column and the end block are both larger than the diameter of the notched column, so that the fixing column forms an annular groove at the notched column; A foot pad, the foot pad being mounted on the mounting post; A card, comprising an upper pressing plate, a lower pressing plate and a transition portion connecting the upper pressing plate and the lower pressing plate; a positioning hole is provided on the upper pressing plate; an opening is provided on the lower pressing plate, and the opening passes through an end of the lower pressing plate away from the transition portion; When the notch column is inserted into the opening, the positioning hole is sleeved on the positioning column so that the end block is located between the upper pressing plate and the lower pressing plate, and the upper pressing plate and the lower pressing plate clamp the end block; the lower pressing plate is spaced apart from the foot pad.

2. The fixing device for a refrigerator compressor according to claim 1, characterized in that: The fixing column passes through the foot pad; The foot pad comprises a support block, a connecting column and a limit block arranged in sequence from bottom to top; The diameters of the supporting block and the limiting block are both larger than the diameter of the connecting column.

3. The fixing device for a refrigerator compressor according to claim 1, characterized in that: The lower pressing plate is a flat plate; The heights of one end of the upper pressing plate connected to the transition portion and the corresponding other end are both higher than the position of the upper pressing plate where the positioning hole is opened; The transition part is an arc-shaped plate with an axis extending in the horizontal direction.

4. The fixing device for a refrigerator compressor according to claim 1, characterized in that: The edge of the opening includes an arc segment and two symmetrically arranged straight segments, the arc segment connects the two straight segments, and the arc segment is coaxial with the notched column and the positioning hole; The arc segment contacts and abuts against the notch column.

5. The fixing device for refrigerator compressor according to claim 1, characterized in that: The fixing column is a rivet column.

6. The fixing device for refrigerator compressor according to claim 1, characterized in that: The material of the card is sheet metal steel or spring steel.

7. A card, characterized in that: It includes an upper pressing plate, a lower pressing plate and a transition part connecting the upper pressing plate and the lower pressing plate; The upper pressing plate is provided with a positioning hole; The lower pressing plate is provided with an opening, and the opening passes through an end of the lower pressing plate away from the transition portion.

8. The card according to claim 7, characterized in that: The transition part is an arc-shaped plate whose axis extends in the horizontal direction; the lower pressing plate is a flat plate; the upper pressing plate is connected to one end of the transition part and is higher than the position of the upper pressing plate where the positioning hole is opened; the edge of the opening includes an arc segment and two symmetrically arranged straight segments, and the arc segment connects the two straight segments; the arc segment is coaxial with the positioning hole.

9. A refrigerator, comprising a compressor compartment and a refrigerator compressor in the compressor compartment, wherein the compressor compartment comprises a compressor mounting plate, characterized in that: Also includes a fixing device for a refrigerator compressor according to any one of claims 1 to 6; The lower end of the fixing column is mounted on the compressor mounting plate; The refrigerator compressor is mounted on the foot pad.

10. The refrigerator according to claim 9, characterized in that: It also includes two silencers; each of the two silencers includes a silencer body, a through hole penetrating the silencer body is provided on the side wall of the silencer body, at least one silencer cavity is provided inside the silencer body, at least one sound-absorbing hole is provided on the peripheral wall of the through hole, and each of the sound-absorbing holes is connected to at least one of the silencer cavities; The compartment wall of the compressor compartment includes a left wall, a right wall and a top wall. The first silencer of the two silencers is installed on the left wall, and the second silencer of the two silencers is installed on the right wall. Accordingly, a first through hole corresponding to the first through hole of the first silencer is opened on the left wall, and a second through hole corresponding to the second through hole of the second silencer is opened on the right wall; the central axis of the first through hole is located between the top of the refrigerator compressor and the top wall, and the second through hole is lower than the first through hole.

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