Fixing device for refrigerator compressor, clamping piece and refrigerator

Abstract

The invention provides a fixing device for a refrigerator compressor, a clamping piece and a refrigerator. The fixing device comprises a fixing column, a foot pad and the clamping piece. The fixing column comprises a mounting column, a notch column, an end block and a positioning column which are sequentially arranged from bottom to top, and the diameter of the mounting column and the diameter of the end block are both larger than that of the notch column so that an annular groove can be formed in the notch column of the fixing column. And the foot pad is mounted on the mounting column. The clamping piece comprises an upper pressing plate, a lower pressing plate and a transition part connected with the upper pressing plate and the lower pressing plate. And a positioning hole is formed in the upper pressing plate. An opening is formed in the lower pressing plate and penetrates through the end, away from the transition part, of the lower pressing plate. When the notch columns are inserted into the openings, the positioning columns are sleeved with the positioning holes, so that the upper pressing plate and the lower pressing plate clamp the end blocks. The lower pressing plate and the foot pad are arranged in a spaced mode, the clamping piece clamps the end block through the upper pressing plate and the lower pressing plate, vibration caused by loosening of an opening of the lower pressing plate is avoided after the clamping piece is fixed, and the foot pad is prevented from being abraded or extruded to deform.

Description

Technical Field

[0001] The invention 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 heart of refrigerator refrigeration and the power source of refrigerator refrigeration. When the compressor runs at different speeds, the energy of the compressor vibration is different. In order to reduce the radiation of the compressor vibration to the refrigerator, the refrigerator usually also includes a compressor mounting plate, foot pads, rivet studs and cards. During installation, the foot pads are often installed on the compressor mounting plate through rivet studs, and then the compressor is installed on the vibration-damping foot pads. The card is usually flat and installed on the rivet studs, and is on the upper side of the foot pads, and is in contact with the foot pads to prevent the card from falling off. At the same time, it can prevent the compressor from vibrating or falling off from the rivet studs of the compressor mounting plate during transportation.

[0003] However, when assembling a refrigerator, the card is usually installed manually, which cannot guarantee the absolute alignment of the rivet post and the card. That is, the card may be tilted during installation, causing the card to squeeze the foot pad, thereby deforming the foot pad and greatly weakening the vibration reduction performance of the foot pad. In addition, in order to ensure the consistency of the card being inserted into the rivet post, manual inspection is often required, which is time-consuming and labor-intensive.

[0004] In addition, when the refrigerator is working, due to manufacturing deviation or assembly deviation, as well as a period of use, the card and the rivet post have too large a mating surface or too loose a mating surface, and the card will rotate around the rivet post, which can easily cause a clattering sound when the compressor is running. Moreover, if the card is installed at an angle, it can easily cause abnormal resonance when the refrigerator is working. Summary of the invention

[0005] In view of the above problems, the present invention is proposed to provide a fixing device for a refrigerator compressor that overcomes the above problems or at least partially solves the above problems, and can solve the problem of the card tilting during installation, and the problem of the card and the foot pad being squeezed so that the foot pad is easily deformed.

[0006] Specifically, the present invention provides a fixing device for a refrigerator compressor, comprising:

[0007] A fixing column, the fixing column comprising a mounting column, a notch 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 notch column, so that the fixing column forms an annular groove at the notch column;

[0008] A foot pad, the foot pad being mounted on the mounting post;

[0009] 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;

[0010] When the opening is inserted into the notch column, 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.

[0011] Optionally, the fixing column passes through the foot pad; the foot pad is provided with a support block, a connecting column and a limit block in sequence from bottom to top, and the diameters of the support block and the limit block are both larger than the diameter of the connecting column.

[0012] Optionally, the lower pressing plate is a flat plate; the height of one end of the upper pressing plate connected to the transition part and the corresponding other end is higher than the position of the upper pressing plate where the positioning hole is opened; the transition part is an arc-shaped plate with its axis extending in the horizontal direction.

[0013] 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.

[0014] Optionally, the fixing column is a rivet column.

[0015] Optionally, the card is made of sheet metal steel or spring steel.

[0016] The present invention 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;

[0017] The upper pressing plate is provided with a positioning hole; the lower pressing plate is provided with an opening, and the opening passes through the end of the lower pressing plate away from the transition part; the transition part is an arc-shaped plate with an axis extending in the horizontal direction; the lower pressing plate is a flat plate; the height of one end of the upper pressing plate connected to the transition part and 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 segments, and the arc segment connects the two straight segments.

[0018] The present invention also provides a refrigerator, comprising a compressor compartment and a refrigerator compressor in the compressor compartment, wherein the compressor compartment comprises a compressor mounting plate, and further comprises any one of the above-mentioned fixing devices for the refrigerator compressor. The refrigerator compressor is mounted on the foot pad; and the lower end of the fixing column is mounted on the compressor mounting plate.

[0019] Optionally, the refrigerator compressor includes a casing and a foot connected to the casing;

[0020] The machine foot is in the shape of a plate and is provided with a circular hole, the diameter of which 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.

[0021] Optionally, the compressor compartment also includes a silencer; the silencer 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 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, the silencer device is installed on the left and right walls of the compartment wall, and the corresponding compartment wall is provided with through holes corresponding to the through holes; the through holes of the two silencers 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 and the top wall of the compartment wall, and the second through hole is lower than the first through hole.

[0022] In the fixing device for refrigerator compressor of the present invention, the fixing column is used to fix the refrigerator compressor in the refrigerator. The foot pad is arranged under the refrigerator compressor to reduce the noise generated by the vibration of the compressor. The 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 of the card and the lower pressure plate clamp the fixed column end block 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 squeeze to deform the foot pad, that is, the card will not affect the foot pad due to vibration.

[0023] 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.

[0024] Furthermore, after the refrigerator etc. is assembled, it can be judged whether the refrigerator etc. is a qualified product based on whether there is a gap between the lower pressure plate and the foot pad.

[0025] Furthermore, in a card of the present invention, the upper and lower pressure plates of the card can be fastened to the fixing column to be connected, thereby preventing the card from rotating in the circumferential direction and causing damage to the fixing device. The lower pressure plate is set as a flat plate to save more space, is not easy to collide with the foot pad, and has a good blocking effect. One end of the connection transition part of the upper pressure plate is higher than the part where the positioning hole is opened on the upper pressure plate, so that the card can have a good clamping force.

[0026] Furthermore, in a refrigerator of the present invention, since the refrigerator compressor is mounted on the compressor mounting plate using a fixing device for the refrigerator compressor, the refrigerator compressor is fixed on the compressor mounting plate, and the card will not be tilted to cause the card to squeeze the foot pad and deform, thereby reducing the vibration reduction performance of the foot pad. In addition, the fastening of the card to the mounting column will not cause abnormal resonance.

[0027] Based on the following detailed description of specific embodiments of the present invention 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 invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary 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. In the accompanying drawings:

[0029] Figure 1 is a schematic structural diagram of a fixing device for a refrigerator compressor according to an embodiment of the present invention;

[0030] Figure 2 is a schematic structural diagram of a card according to an embodiment of the present invention;

[0031] Figure 3 is a schematic structural diagram of a card according to an embodiment of the present invention;

[0032] Figure 4 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

[0033] Figure 5 is a schematic structural diagram of the interior of a compressor compartment according to an embodiment of the present invention;

[0034] Figure 6 is a schematic structural diagram of a silencing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] Refer to the following Figures 1 to 3To describe the fixing device for a refrigerator compressor of an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "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 invention, the meaning of "multiple" 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.

[0036] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] 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 through 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 and obliquely 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 obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of the present embodiment, the description with 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 invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Figure 1 is a schematic structural diagram of a fixing device for a refrigerator compressor according to an embodiment of the present invention, Figure 1 As shown, and refer to Figures 2 to 6 An embodiment of the present invention provides a fixing device for a refrigerator compressor, including a fixing column 200, a foot pad 300 and a card 100.

[0040] The fixing column 200 includes a mounting column 240 , a notch column 230 , an end block and a positioning column 210 arranged in sequence from bottom to top. The diameters of the mounting column 240 and the end block are both larger than the diameter of the notch column 230 , so that the fixing column 200 forms an annular groove at the notch column 230 .

[0041] The foot pad 300 is mounted on the mounting post 240 .

[0042] 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 an end of the lower pressing plate 120 away from the transition portion 130.

[0043] When the opening 121 is inserted into the notch column 230, the positioning hole 111 is fitted into the positioning column 210, so that the end block 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. The lower pressing plate 120 is spaced apart from the foot pad 300.

[0044] 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 clamp the end block, and the lower pressing plate 120 is spaced apart from the foot pad 300.

[0045] In this embodiment, since the upper pressing plate 110 and the lower pressing plate 120 clamp and tighten the end block after installation, even if the installation is tilted, after installation, since the upper pressing plate 110 and the lower pressing plate 120 clamp and tighten the end block, the lower pressing plate can be moved to a non-tilted position, which can ensure that the lower pressing plate 120 will not be tilted due to installation. Moreover, since the lower pressing plate 120 of the card 100 is spaced apart from the foot pad 300, the spacing setting can make the card 100 slightly tilted during installation without touching the foot pad 300, preventing damage to the foot pad 300, and improving installation convenience. The spacing setting also provides a space for the lower pressing plate 120 to change from tilting to non-tilting, that is, the installation of the card does not have any interference with the foot pad 300, and will not damage the foot pad 300, ensuring the life of the foot pad 300 and the shock absorption effect of the foot pad 300. In addition, due to the setting of the opening, the card 100 can be installed on the fixed column 200 from any direction, and the installation is quick.

[0046] Furthermore, after the refrigerator is assembled, it can be determined whether the refrigerator is a qualified product based on whether there is a gap between the lower pressing plate 120 and the foot pad 300. Because there is a gap, it can be checked by machine, that is, no manual inspection is required, saving manpower.

[0047] Furthermore, when the refrigerator is transported, the foot pad 300 may move upward due to vibration, etc. At this time, the card 100 is located above the foot pad 300, which can prevent the foot pad 300 from falling out. In other words, since the card 100 is provided and the card 100 has the lower pressing plate 120, the card 100 is installed on the upper end of the fixing column 200 to prevent the foot pad 300 from falling out, thereby preventing the compressor 410 from falling out. Of course, in other cases where the foot pad 300 moves upward, the card 100 will also prevent the foot pad 300 from falling out.

[0048] During the operation of the refrigerator, the compressor 410 itself will generate vibrations, and the foot pad 300 can reduce the noise generated by the vibration of the compressor 410. Moreover, the vibration generated by the operation of the compressor 410 will be transmitted to the card 100 through the fixed column 200. Since the upper pressing plate 110 and the lower pressing plate 120 of the card 100 clamp the end block of the fixed column 200 to fix the card 100 on the fixed column 200, the card 100 will not move relative to the fixed column 200. Even if the matching surface between the card and the rivet column is too large or too loose due to manufacturing deviation or assembly deviation, or a period of time during use, the card 100 will not rotate in the circumferential direction due to vibration, thereby reducing the noise generated by the vibration of the card 100 relative to the fixed column 200. Since the installation process will not cause the card 100 to tilt, during the operation of the compressor 410, abnormal resonance will not occur. Moreover, due to the existence of the gap, the card vibration will not contact the foot pad 300, so the foot pad 300 will not be worn or squeezed to deform, that is, the lower pressing plate 120 has basically no effect on the foot pad 300. In addition, due to the existence of the gap, even if the card is slightly deformed, or slightly loosened due to long-term use, the existence of the gap also makes the lower pressing plate 120 have basically no effect on the foot pad 300. This can prevent the lower pressing plate 120 from damaging the foot pad 300.

[0049] In some embodiments of the present invention, Figure 1 As shown, the fixing column 200 passes through the foot pad 300. The foot pad 300 includes a support block 330, a connecting column 320 and a stop block 310 arranged in sequence 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 column 320. The machine foot 411 of the compressor 410 is installed on the connecting column 320 of the foot pad 300 and is located between the support block 330 and the stop block 310. The compressor 410 can be further prevented from falling out.

[0050] In some embodiments of the present invention, Figures 1 to 3 As shown, the lower pressing plate 120 is a flat plate. The lower pressing plate 120 is set as a flat plate to save space and is not easy to collide with the foot pad.

[0051] In some embodiments of the present invention, Figures 1 to 3 As shown, the end of the upper pressing plate 110 connected to the transition part 130 is higher than the position of the upper pressing plate 110 with the positioning hole 111. During installation, since the position of the positioning hole 111 is lower than the end of the upper pressing plate 110 connected to the transition part 130, it is convenient to clamp and the card 100 can be fastened to the end block.

[0052] In some embodiments of the present invention, Figures 1 to 3As shown, the height of the other end of the upper pressing plate 110 corresponding to the end connected to the transition part 130 is higher than the position of the upper pressing plate 110 where the positioning hole 111 is provided. The other end of the upper pressing plate 110 corresponding to the end connected to the transition part 130 can play a guiding role. Under the obstruction of the positioning column 210, the upper pressing plate 110 is automatically opened, which facilitates the installation of the card 100 on the fixing column 200. Of course, since the height of the other end of the upper pressing plate 110 corresponding to the end connected to the transition part 130 is higher than the position of the upper pressing plate 110 where the positioning hole 111 is provided, the end can also be lifted by hand or tools to install the card 100 on the fixing column 200. It is convenient for users to operate and easy to disassemble and assemble the card 100.

[0053] In some embodiments of the present invention, Figures 1 to 3 As shown, the transition portion 130 is an arc-shaped plate with an axis extending in the horizontal direction.

[0054] In some embodiments of the present invention, the edge of the lower pressing plate 120 is outside the edge of the projection 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 when the lower pressing plate 120 contacts the limit block 310, the pressure applied by the lower plate to the limit block 310 is minimized, so as to reduce damage to the foot pad 300.

[0055] In some embodiments of the present invention, Figures 2 to 3 As shown, 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 the arc segment is coaxial with the notch column 230 and the positioning hole 111. The arc segment contacts and abuts against the notch column 230. The two straight segments are tangent to the arc segment.

[0056] Furthermore, the diameter of the arc segment is not greater than the diameter of the notched column 230 , so that the card 100 is clamped on the fixing column 200 .

[0057] In some embodiments of the present invention, the fixing column 200 is a rivet column, which is simpler to fix than a stud.

[0058] In some embodiments of the present invention, the material of the card 100 is sheet metal steel material.

[0059] In other embodiments of the present invention, the material of the card 100 is spring steel.

[0060] like Figure 2 and Figure 3 As shown, the present invention 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 .

[0061] The upper pressing plate 110 is provided with a positioning hole 111. The lower pressing plate 120 is provided with an opening 121, and the opening 121 penetrates an end of the lower pressing plate 120 away from the transition portion 130.

[0062] In some embodiments of the present invention, the transition portion 130 is an arc-shaped plate with an axis extending in the horizontal direction. The lower pressing plate 120 is a flat plate. The height of one end of the upper pressing plate 110 connected to the transition portion 130 and the corresponding other end is higher than the position where the positioning hole 111 is opened in the upper pressing plate 110. The edge of the opening 121 includes an arc segment and two symmetrically arranged straight segments, and the arc segment connects the two straight segments.

[0063] The present invention provides a refrigerator 600, such as Figure 4 As shown, the refrigerator 600 includes a compressor compartment 400 and a refrigerator compressor 410 in the compressor compartment 400, and the compressor compartment 400 includes a compressor 410 mounting plate 420. Preferably, the refrigerator 600 also includes a fixing device in any of the above embodiments. The lower end of the fixing column 200 is mounted on the compressor 410 mounting plate 420. The refrigerator compressor 410 is mounted on the foot pad 300.

[0064] The refrigerator compressor 410 is mounted on the compressor 410 mounting plate 420 by a fixing device, so that the refrigerator compressor 410 is fixed on the compressor 410 mounting plate 420. The foot pad 300 is provided on the refrigerator compressor 410 to reduce the noise generated by the vibration of the compressor 410. The card 100 will not be deformed by squeezing the foot pad 300 due to the tilt of the card 100, and the foot pad 300 will not be squeezed due to vibration, thereby preventing the vibration reduction performance of the foot pad 300 from being reduced. In addition, the fastening of the card 100 to the fixing column 200 will not cause abnormal resonance.

[0065] In some embodiments of the present invention, Figure 5 As shown, the refrigerator compressor 410 includes a housing and a foot 411 connected to the housing. The foot 411 is plate-shaped, and a circular hole is provided on the foot 411. 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 installed on the connecting column 320 through the circular hole. During installation, the circular hole can be sleeved on the connecting column 320 of the foot pad 300 through the limit block 310 of the foot pad 300, and is located between the limit block 310 and the support block 330, so as to fix the compressor 410.

[0066] In some embodiments of the present invention, Figure 4 and Figure 6As shown, the refrigerator 600 further includes a muffler 500. The muffler 500 includes a muffler body 520, a through hole 510 penetrating the muffler body 520 is provided on a side wall of the muffler body 520, at least one muffler cavity is provided inside the muffler body 520, at least one sound absorbing hole 511 is provided on a peripheral wall of the through hole 510, and each sound absorbing hole 511 is connected to at least one muffler cavity.

[0067] When in use, the silencer 500 is installed inside the refrigerator 600 to reduce the noise in 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 in 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 the noise enters the silencer cavity through the through hole 510 and the sound absorption hole 511. Under the silencing 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 in the compressor compartment 400 to the outside of the compressor 410.

[0068] In some optional embodiments of the present invention, at least one muffler cavity has a labyrinth structure.

[0069] In this embodiment, compared with the silencer cavity of the acoustic flow structure, the honeycomb structure or the 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 enhancing the noise reduction effect of the silencer device 500.

[0070] In some other optional embodiments of the present invention, at least one muffler cavity is in an acoustic flow structure.

[0071] In some other optional embodiments of the present invention, at least one muffler cavity has a honeycomb structure.

[0072] In some other optional embodiments of the present invention, at least one muffler chamber is in a straight tube structure.

[0073] In some optional embodiments of the present invention, the sound-absorbing body is a sound-absorbing metamaterial.

[0074] Specifically, the sound-absorbing metamaterial (MAT metamaterial, MAT is the abbreviation of Metamaterial Absorption Technology) uses a synthetic material with high sound absorption efficiency, and there is a complex maze pattern structure on it. Each maze channel can absorb specific frequencies, and its sound absorption efficiency is as high as 99%. In addition, compared with general sound-absorbing materials, the chemical properties of sound-absorbing metamaterials are more stable, safer, odorless, elastic, fire-retardant, mildew-proof and anti-bacterial, and have a good feel and weight.

[0075] In some alternative embodiments of the present invention, the silencer body is made of ABS material.

[0076] In some embodiments of the present invention, Figure 4 As shown, the compressor compartment 400 includes a left wall, a right wall and a top wall. A silencer 500 is installed on both the left wall and the right wall, and a through hole corresponding to the through hole is opened on the corresponding compartment wall. The through holes 510 of the two silencers 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 wall, and the second through hole is lower than the first through hole.

[0077] In this embodiment, since the through holes 510 of the two silencers 500 are asymmetrical structures. When the compressor 410 is working, based on the principle that the density of hot air is small and the density of cold air is large, and hot air will automatically rise, the high-temperature airflow in the compressor compartment 400 automatically flows upward and is discharged from the compressor compartment 400 through the first through hole, and at the same time, negative pressure is generated at the bottom of the compressor compartment 400. Under the action of the atmospheric pressure outside the compressor compartment 400, the outside air enters the compressor compartment 400 through the through hole 510 at the lower position. In other words, the first through hole at the upper position is the airflow outlet, and the second through hole at the lower position is the airflow inlet, thereby forming an airflow that runs through the compressor compartment 400, so that the airflow can quickly flow through the compressor compartment 400, taking away the heat in the compressor compartment 400, and having a good heat dissipation effect. In summary, compared with the symmetrical through holes 510 of the two silencers 500, the asymmetrical through holes 510 of the two silencers 500 can make the heat flow lines in the compressor compartment 400 form a smooth air path when there is no fan in the compressor compartment 400, thereby improving the heat dissipation efficiency of the compressor compartment 400, and further improving the service life of the compressor 410. On the other hand, since the central axis of the first through hole is located between the top of the compressor 410 and the top wall of the compartment wall, it not only provides a precise reference for the design and manufacture of the first through hole, but also facilitates the manufacture and assembly of the silencer 500 on the air outlet side of the compressor compartment 400, and is more conducive to the discharge of high-temperature gas from the compressor compartment 400.

[0078] In some embodiments of the present invention, the muffler body 520 is a split structure. The muffler body 520 is divided into a first body and a second body along its thickness direction. The muffler cavity is enclosed by the first body and the second body.

[0079] During the manufacturing process, the first body and the second body are manufactured separately. After the first body and the second body are manufactured separately, the first body and the second body are assembled together to form the silencer 500. During the separate manufacturing process, it is convenient to design a plurality of silencer cavities of different lengths, widths and heights according to the noise reduction requirements, so that the silencer cavities of different sizes correspond to different noise reduction pressure bands, so that the silencer 500 can have a better noise reduction effect.

[0080] In this embodiment, since the silencer body 520 is a split structure, it is convenient to set a plurality of silencer cavities of different sizes inside the silencer body 520, which is more conducive to absorbing noises of different frequencies.

[0081] In some embodiments of the present invention, the first body includes a first side panel, a peripheral wall, and a muffler cavity partition 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 with the muffler cavity partition. The first side panel, the muffler cavity partition, the peripheral wall, and the second side panel together enclose a through hole 510 and the muffler cavity.

[0082] In the manufacturing and assembly process, the first body and the second body are first manufactured separately, and then the two are assembled together. Specifically, the muffler cavity partition 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 body and the second body are enclosed together to form the through hole 510 and the muffler cavity.

[0083] In this embodiment, since the muffler cavity partition is inserted into the slot, on the one hand, each muffler cavity can be a closed cavity, thereby improving the sealing effect and noise reduction effect of each muffler cavity. On the other hand, it can also play a positioning role, thereby improving the assembly efficiency of the first body and the second body.

[0084] In some embodiments of the present invention, the second side plate is provided with a convex strip forming a slot, which can increase the depth of the slot, thereby increasing the size of the portion of the muffler cavity partition plate inserted into the slot, thereby further improving the sealing effect and noise reduction effect of each muffler cavity.

[0085] In some embodiments of the present invention, there is a gap between the two side walls of the slot and the corresponding muffler cavity partition. Since the slot and the muffler cavity partition are in a gap fit, it is easy to insert the slot into place, and the sealing of the muffler cavity can be further improved, so that it has a better noise reduction effect.

[0086] In some embodiments of the present invention, the edge of the peripheral wall away from the first side plate is welded to the second side plate. Compared with the fastening or clamping method, the welding method can improve the sealing performance of the silencer 500, so that the silencer 500 can have a better noise reduction effect.

[0087] 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 weld is placed on a specified device and vibrates and rubs 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. In addition, no welding smoke and pollutants such as manganese and nickel that are harmful to the human body are generated during the welding process.

[0088] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A fixing device for a refrigerator compressor, characterized in that: include: 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 opening is inserted into the notch column, 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 limiting block which are arranged in sequence from bottom to top; the diameters of the support 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 height of one end of the upper pressing plate connected to the transition part 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, the arc segment is coaxial with the notch 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 pressure plate is a flat plate; the end of the upper pressure plate connected to the transition part is higher than the part of the upper pressure 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 a silencer; the silencer 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 silencer is installed on the left wall and the right wall, and the corresponding compartment wall is provided with through holes corresponding to the through holes; the through holes of the two silencers 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 refrigerator compressor and the top wall, and the second through hole is lower than the first through hole.

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