Refrigeration apparatus and method of production thereof
Patent Information
- Application Number
- ES2022794181T
- Authority / Receiving Office
- ES · ES
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-04-28
- Filing Date
- 2022-01-10
- Publication Date
- 2026-09-14
- Estimated Expiration
- 2042-01-10
Smart Images
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Abstract
Description
Refrigeration apparatus and method of production thereof TECHNICAL FIELD The present invention relates to a refrigeration apparatus and to a method of producing the refrigeration apparatus. BACKGROUND In a refrigeration unit, a compressor operates a refrigerant to create the refrigerant circulation flow for cooling, and noise is generated during compressor operation. The compressor is housed in a compressor compartment, and other components, such as a fan, are typically located within this compartment and also generate noise. These components generate heat while producing noise and require cooling to ensure their proper functioning. Therefore, a vent from the compressor compartment to the outside is necessary, and the noise generated by the compressor is also transmitted to the outside through this vent. Space inside the refrigeration unit is limited, and this limited internal space is further compromised when a noise-dampening and noise-reduction device is added, thus ensuring that noise reduction and space utilization are not compromised.They can be well balanced and are difficult to consider at the same time, thus affecting the noise reduction effect and subsequently influencing a user's experience. CN 109708388 B refers to a compressor assembly and a refrigerator with the same. The compressor assembly includes a compressor, a fan, and an air passage, wherein the air passage is arranged between the fan and the compressor. The air passage includes a side plate and an airflow passage. A plurality of partitions are arranged within the airflow passage, and anechoic chambers are formed between these partitions. These anechoic chambers are mutually independent, so that the airflow generated by the fan enters the airflow passage, and the noise is reduced through the plurality of anechoic chambers, resulting in a refrigerator with lower operating noise and lower energy consumption. CN111811192 A refers to refrigeration equipment comprising a support plate and at least one support and noise-reducing component, wherein the support plate and at least one support and noise-reducing component are positioned in a pressure chamber; the at least one support and noise-reducing component is positioned between the lower surface of the support plate and the lower wall of the pressure chamber and is used to support the support plate to the lower wall of the pressure chamber; thus, the support plate is stably supported on the lower wall of the pressure chamber; a compressor is arranged on the support plate, so that the pressure of the compressor's gravity on the lower wall of the pressure chamber is reduced, and its influence on the deformation of the pressure chamber is reduced; furthermore, the support and noise-reducing component is arranged between the support plate and the lower wall of thePressure chamber: While the support plate is supported and held stable, the transfer of compressor vibration to the lower wall of the pressure chamber can be reduced, and the compressor vibration noise is effectively reduced. Document EP 3764034 A1 relates to a refrigerator with noise reduction means. The refrigerator has a casing, at least one door, and a plurality of refrigeration components. The casing defines an interior volume that includes at least one cooling compartment. The at least one door is carried by the casing and provides access to the interior volume. The plurality of refrigeration components includes a compressor, a condenser, and a fan. The refrigerator further includes a subassembly of components that incorporates the plurality of refrigeration components and an airflow path extending between a cooler air inlet and a warmer air outlet. The components ofThe refrigeration components are located along the airflow path. The refrigerator also includes a noise reduction arrangement to reduce operating noise. The noise reduction arrangement includes a plurality of walls that define the airflow path. The walls include a sound-absorbing material. The plurality of walls includes a plurality of outer walls and a plurality of inner walls. The plurality of outer walls defines an outer perimeter of the component subassembly and are generally oriented orthogonally to each other. The inner walls of the plurality of inner walls may be inclined relative to the outer walls of the plurality of outer walls. At least some of the walls of the plurality of walls may be load-bearing walls. CN 209875570 U relates to a noise reduction device and a gas water heater. The noise reduction deviceThe noise device comprises a barrel-shaped body defined by the connection of a peripheral wall and a bottom wall and provided with an opening at one end. The peripheral wall comprises an inner peripheral wall and an outer peripheral wall; an air inlet channel is defined by the middle of the inner peripheral wall. A cavity is formed between the inner peripheral wall and the outer peripheral wall; the cavity is divided into a plurality of silencer cavities by first partition plates, at least one second partition plate is disposed in each silencer cavity, each silencer cavity is divided into a plurality of layers of silencer subcavities by the corresponding second partition plate, the silencer subcavities are mutually independent, the second partition plates are perpendicular to the first partition plates, and each silencer subcavity is provided with at least one inlet.Sound. According to the noise reduction device, the noise entering the structure is effectively absorbed, thus effectively preventing sound from escaping. Sound absorption and noise reduction for different frequencies can be achieved through the internal structure design, effectively preventing noise from being transmitted outside the body. Furthermore, the noise reduction structure basically has no influence on the air volume, air pressure, or air inlet volume. CN 107514858 B refers to a compressor compartment for a refrigerator, where a plurality of sharp corners of a compressor compartment wall plate face the inner part of the compressor compartment. The sharp corners are hollow, the internal space of the sharp corners is filled with foam material, and a plurality of holes communicate with theThe internal space is shaped at the sharp corners. The compressor compartment can effectively extract high-frequency noise components and improve sound quality, and it is simple in structure, convenient to manufacture, and low-cost. Another relevant document of the prior art is document KR20080050155A. SUMMARY To address the noise reduction and space occupancy problems of the prior art, an objective of the present invention is to provide an improved refrigeration apparatus and a method for producing the same. The invention is disclosed in independent claims 1 and 10. Further embodiments are disclosed in dependent claims. To achieve the aforementioned object of the present invention, an embodiment of the present invention provides a refrigeration apparatus according to claim 1 comprising a compressor compartment and a housing, wherein the compressor compartment is provided within the housing, and a foaming space is provided between the compressor compartment and the housing; after the silencing device is fixed in the foaming space, a foaming agent is injected into the foaming space. The refrigeration apparatus further comprises a silencing device provided within the foaming space, the compressor compartment comprises an internal vent communicating with the exterior, the housing comprises an external vent opposite the internal vent, the silencing device comprises a silencing channel, and the silencing channel is communicated with the internal vent and the external vent. As a further improvement of the present invention, each of a left side and a right side of the compressor compartment is provided with the internal vent, as well as the silencer device and the external vent corresponding to the internal vent, one internal vent being established as an air inlet, and the other internal vent being established as an air outlet. As a further improvement of the present invention, the compressor compartment comprises a cavity and side walls arranged on two sides of the cavity, the side walls are provided with internal vents, the internal vents are in communication with the cavity, and the silencer devices are fixed to the side walls. As a further improvement of the present invention, the side wall is provided with a plurality of first clamping parts, the silencer device comprises a silencer body and a plurality of second clamping parts arranged on one side of the silencer body facing the side wall and attached to the first clamping parts, and the side wall is fixedly connected to the silencer device by means of a clamping element. As a further improvement of the present invention, the first clamping part comprises a clamping opening and a first clamping block, the second clamping part comprises a second clamping block and a clamping slot, the second clamping block is connected to the first clamping block through the clamping opening, and the first clamping block is fixed in the clamping slot. As a further improvement of the present invention, a flow channel is provided between the silencing device and the housing and / or side wall, and the flow channel communicates with a portion of the foaming space above the silencing device and a portion of the foaming space below the silencing device. As a further improvement of the present invention, the silencing device is hermetically connected to the housing; the silencing device comprises a silencing body and a protective portion provided between the housing and the silencing body; and the protective portion comprises a protective mesh provided transversely between the silencing channel and the external vent; the protective portion is attached to a port of the silencing channel. As a further improvement of the present invention, the silencing device comprises a plurality of silencing cavities, and the silencing cavities comprise openings into the silencing channel. As a further improvement of the present invention, at least two of the silencer cavities have different volumes. To achieve the aforementioned object of the present invention, an embodiment of the present invention provides the refrigeration apparatus configured as the refrigeration apparatus above, and the production method according to claim 10 comprises the following steps: permanently connect the silencing device in the foaming space outside the compressor compartment; set up the accommodation; and inject a foaming agent into the foaming space. Compared to the prior art, the present invention has the following beneficial effects: a silencer is provided in a foaming space, and since the foaming space inevitably occupies some space, space inside the refrigeration unit is not occupied when the foaming space is used, and a compressor compartment is connected to the outside through a silencer channel, the energy of the sounds is weakened during heat dissipation outside the compressor compartment, and the noise radiated outwards from the compressor compartment is reduced, so the solution achieves a good balance between noise reduction and space utilization of the refrigeration unit, the noise generated by the refrigeration unit is small, the space utilization rate is high, and a user's experience is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic structural diagram of a refrigerator compressor compartment according to an embodiment of the present invention; Figure 2 is a partially enlarged view of A in Figure 1; Figure 3 is a schematic structural diagram of a silencer device in the embodiment of the present invention; Figure 4 is a partial cross-sectional view of the compressor compartment in the embodiment of the present invention; and Figure 5 is a schematic structural diagram of a refrigeration apparatus according to the embodiment of the present invention. In the drawings: 100. refrigeration apparatus; 1. silencer device; 10. flow channel; 11. silencer body; 12. silencer channel; 13. second clamping part; 131. second clamping block; 132. clamping slot; 14. protective part; 141. protective mesh; 142. buckle; 15. silencer cavity; 151. opening; 2. compressor compartment; 20. cavity; 21. side wall; 210. internal vent; 22. first clamping part; 221. clamping opening; 222. first clamping block; 3. housing; 31. external vent; 4. clamping element. DETAILED DESCRIPTION The present invention will henceforth be described in detail in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, which is disclosed in independent claims 1 and 10. It should be understood that terms expressing relative spatial positions, such as "above," "over," "below," "under," or similar terms, are used herein to describe the relationship of one unit or feature to another unit or feature in the drawings, for illustrative and descriptive purposes. Terms expressing relative spatial positions are intended to include different orientations of the device in use or operation other than those shown in the drawings. The present invention provides a cooling apparatus according to claim 1 and a method of producing the same according to claim 10. The cooling apparatus generates little noise, and meanwhile, an internal noise reduction device barely occupies any available internal space, so the space utilization rate is high, and a user's experience is greatly improved. The refrigeration apparatus according to claim 1 in the present embodiment can be configured as a refrigerator, and as shown in Figure 5, a refrigeration system is provided within the refrigerator. The refrigeration system has a circulation circuit for circulating a refrigerant, and the refrigeration system includes a compressor, a condenser, a throttling pipe, and an evaporator connected in series and sequence. The compressor is provided in a compressor compartment 2. The compressor compartment 2 can be located in any position within the refrigerator, such as at the bottom, middle, or top, and the compressor compartment 2 in Figure 5 in the present embodiment is located at the bottom of the refrigerator. In the present embodiment, the noise radiated outward from the compressor compartment 2 is improved to address a noise problem in a prior art. To clearly express the position and direction described in the present embodiment, in the present embodiment, the up-down direction can be defined by referring substantially to the direction of gravity when the refrigerator is placed on a horizontal floor, and since the compressor compartment 2 is provided inside the refrigerator, the direction from the rear of the refrigerator to the refrigerator housing serves as the rear, the rear of the refrigerator serves as the front, and both sides perpendicular to the front-rear direction serve as the left and right. A refrigeration apparatus 100 according to the present embodiment includes a compressor compartment 2 and a housing 3. The compressor compartment 2 is provided in the housing 3. A foaming space is provided between the compressor compartment 2 and the housing 3. The housing 3 serves as a frame for the refrigerator in Figure 5. The refrigerator is further provided internally with an inner lining. The foaming space is formed outside the inner lining and the compressor compartment 2 and is located on an inner side of the housing 3. A foaming agent is injected into the foaming space to achieve a thermal insulation effect, and the foaming space generally has a certain thickness to achieve the thermal insulation effect.The compressor compartment 2 includes side walls 21 arranged on the left and right sides, a back plate, a bottom plate, a cover plate, or the like, which together enclose a cavity 20 of the compressor compartment 2, and a compressor, a condenser, a fan, an evaporation tray, or the like, are arranged in the cavity 20. The compressor compartment 2 includes an internal vent 210 communicating with the outside, the housing 3 includes an external vent 31 opposite the internal vent 210, and the heat in the cavity 20 is discharged to the outside through the two vents. The refrigeration apparatus 100 according to claim 1 further includes a silencer device 1 provided in the foaming space, and as shown in Figures 1 to 4, the silencer device 1 is configured to reduce the noise emitted from the cavity 20, the silencer device 1 includes a silencer channel 12, and the silencer channel 12 communicates the internal vent 210 and the external vent 31; preferably, the cavity 20 communicates with the outside only through the silencer channel 12; i.e., the compressor compartment 2 does not communicate directly with the outside through other means, and since the foaming space must occupy some space, mounting the silencer device 1 in this position has the following various effects. Firstly, the silencer device 1 no longer occupies space in the internal lining or in the compressor compartment 2, so the space utilization rate in the compressor compartment 2 is higher, a more compact structure can be made, the space of the internal lining can be made larger, and the effective utilization rate of the refrigerator is higher; when the user considers a smaller occupied area and a larger storage space of the refrigerator, this point becomes a favorable selling point of the refrigerator, increasing the sales volume of the refrigerator and improving the user experience; Secondly, a spatial position occupied by the silencing device 1 is a position where the compressor compartment 2 is open to the outside for heat dissipation. Heat dissipation is required in the compressor compartment 2 at this position, and the heat dissipation of the compressor compartment 2 is affected by foaming at that position in an existing refrigerator. In the present embodiment, after the silencing device 1 is installed at this position, a layer of foam is added to the space, such that the heat in the compressor compartment 2 is more effectively dissipated to the outside from that position, and the temperature reduction of the compressor compartment 2 is facilitated. Third, the foaming material has a fixing function, and after the foaming material is injected into the foaming space, the foaming material solidifies to firmly fix the silencer device 1 in this position, thus reducing the vibration of the silencer device 1; the silencer device 1 has a noise reduction function, so it is necessary to fix the silencer device 1 stably;The compressor is configured as a rotating machine and generates vibration during operation. The compressor is fixed to the bottom plate of compressor compartment 2 and causes the entire compressor compartment 2 to vibrate during operation. When silencer device 1 is fixed in compressor compartment 2, it cannot be fixed stably compared to its arrangement in the foaming space. After a long time, silencer device 1 may loosen under long-term vibration. When silencer device 1 is placed in the foaming space and fixed by foaming material, the foaming material has a vibration absorption function and firmly fixes silencer device 1, greatly improving the noise reduction effect and maintaining a stable state for a long time. Fourth, the existing spatial structure design of compressor compartment 2 remains unaffected, and the silencer device 1 can be mounted without altering the spatial structure design, heat dissipation design, mechanical strength design, internal wiring design of compressor compartment 2, the overall size of the refrigerator, or similar aspects. Since the position of the silencer device 1 and the existing designs have no spatial interference relationship or a fairly small relationship, without significantly adjusting the existing structure, and with few changes to the production process, production parameters, mold designs, or similar aspects, refrigeration unit 100 with the silencer device 1 can be transformed based on the existing refrigeration unit 100, thus greatly reducing production costs; Fifth, the noise reduction effect is good. A specific structure of the silencer device 1 is described below. A sound enters the silencer device 1 and is then transmitted along the silencer channel 12. A plurality of silencer cavities 15 are formed in the side wall 21 of the silencer channel 12, and at least part of the sound enters the silencer cavities 15, so that a sound propagation path passing through a through hole is increased, reducing the energy of the sound radiated outwards, and achieving the noise reduction effect;The volume of the silencing cavity 15 can determine a frequency range of sound capable of being eliminated by the silencing cavity 15. Silencer cavities 15 with different volumes have different silencing frequency ranges, and therefore, sound can enter different silencing cavities 15 by adjusting the volumes of different silencing cavities 15, thus eliminating noise with different frequencies, so that the silencing device 1 has wider silencing frequencies. Furthermore, as shown in Figure 1, each of the left and right sides of the compressor compartment 2 is provided with the internal vent 210, as well as with the silencer device 1 and the external vent 31 corresponding to the internal vent 210; one internal vent 210 is configured as an air inlet, the other internal vent 210 is configured as an air outlet; the compressor compartment 2 includes the cavity 20 and the side walls 21 provided on both sides of the cavity 20; the refrigeration apparatus 100 according to claim 1 includes the compressor provided in the cavity 20; the side walls 21 are provided with the internal vents 210; the internal vents 210 are in communication with the cavity 20; and the silencer devices 1 are fixed to the side walls 21.The silencing devices 1 are arranged on the side walls 21 of the left and right sides of the existing compressor compartment 2, and as shown in Figure 1, when entering and exiting cavity 20, the airflow passes through the silencing devices 1, in such a way that the noise propagating directly outwards at the airflow inlet and outlet is reduced while facilitating an inlet and outlet of the airflow. Specifically, the side wall 21 is provided with a plurality of first fastening parts 22, the silencing device 1 includes a silencing body 11 and a plurality of second fastening parts 13 that are arranged on one side of the silencing body 11 facing the side wall 21 and are attached to the first fastening parts 22, and the side wall 21 is fixedly connected to the silencing device 1 by means of a fastening element 4.The side wall and the silencer device are relatively fixed in a secure manner and then firmly secured by the fastening element 4, and the reason is as follows: the fastening element 4, like a bolt and screw, can generally only fix certain points, but a sealing performance in this position is important, and when the sealing performance is not good, the foaming material can enter the cavity 20 of the compressor compartment 2 through a gap, so the first fastening part 22 and the second fastening part 13 are securely connected, the first fastening part 22 and the second fastening part 13 can both be annular, or be arranged around a circumference of the internal vent 210, to ensure that the entire circumference can be sealed and fixed. The internal vent 210 and the external vent 31 can be circular, so that the first clamping part 22 and the second clamping part 13 can be arranged in a circular ring shape, as shown in Figures 2 and 3.The first clamping part 22 includes a clamping opening 221 and a first clamping block 222; the second clamping part 13 includes a second clamping block 131 and a clamping slot 132; and a plurality of groups (e.g., four groups in the drawing) of clamping openings 221 and first clamping blocks 222 are arranged around the circumference of the inner vent 210; a plurality of groups (e.g., four groups in the drawing) of second clamping blocks 131 and clamping slots 132 are also arranged accordingly around the circumference; the second clamping block 131 is connected to the first clamping block 222 via the clamping opening 221, and the first clamping block 222 is fixed in the clamping slot 132, so that the silencer device 1 and the side wall 21 are fixed together. During assembly, the first clamping block 222 of the silencer device 1 is inserted into the cavity 20 through the clamping opening 221 of the side wall 21 first, and then the silencer device 1 is rotated to a certain angle to allow the first clamping block 222 of the side wall 21 to be clamped in the clamping groove 132 of the silencer device 1, and the clamping groove 132 is configured as a groove body formed between the second clamping block 131 and the silencer body 11, and thus a fixed connection is made around the entire circumference; after the assembly is in place, the silencer device 1 and the side wall 21 are firmly connected by the clamping element 4 to prevent their separation. A flow channel 10 is provided between the silencing device 1 and the housing 3 and / or the side wall 21, and as shown in Figure 4, the flow channel 10 is in communication with a portion of the foaming space above the silencing device 1 and a portion of the foaming space below the silencing device, and when the foaming agent is injected into the foaming space, the foaming material enters at the bottom or top through the flow channel 10, thus preventing the flow of the foaming agent from being blocked in this position due to the arrangement of the silencing device 1, and influencing the thermal insulation performance in other parts of the foaming space. Furthermore, the silencer device 1 is hermetically sealed to the housing 3. The silencer device 1 includes the silencer body 11 and a protective part 14 provided between the housing 3 and the silencer body 11. As shown in Figures 1 to 3, the protective part 14 includes a protective mesh 141 provided transversely between the silencer channel 12 and the external vent 31. The protective part 14 is attached to a port of the silencer channel 12. The protective part 14 is configured to prevent external insects, mice, or similar creatures from entering the cavity 20, and does not affect the airflow inlet and outlet. The protective part 14 is provided with a buckle 142 and is attached to the silencer body 11, making assembly convenient. Furthermore, the silencing device 1 includes a plurality of silencing cavities 15 provided along the path of the silencing channel 12. The silencing cavities 15 include openings 151 facing the silencing channel 12, and the volumes of at least two of the silencing cavities 15 are different. At least some of the sound enters the silencing cavity 15 through the opening 151. The silencing cavity 15 has a certain depth, and the sound enters the opening 151 and then propagates within the silencing cavity 15, thus lengthening the sound propagation path as it passes through the opening. The noise reduction effect is achieved by providing an acoustic metamaterial.The volume of the silencing cavity 15 can determine a range of sound frequencies that can be eliminated by the silencing cavity 15; that is, different silencing cavities 15 have different silencing frequency ranges, and therefore, sound can enter different openings 151 by adjusting the volumes of different silencing cavities 15, so that noise at different frequencies is eliminated, such that the silencing device 1 has wider silencing frequencies. Furthermore, an embodiment of the present invention provides an assembly method according to claim 10 of the cooling apparatus 100, which includes the following steps: permanently connect the silencer device 1 in the foaming space outside the compressor compartment 2; assemble accommodation 3; and inject the foaming agent into the foaming space. That is, after the silencer device 1 is fixed in the foaming space, the foaming agent is injected into the foaming space, so that the foaming agent firmly fixes the silencer device 1 in the foaming space, and the beneficial effect of the above relevant content that the foaming material has a fixing function is achieved. Compared to the previous technique, the present implementation has the following beneficial effects: A silencer is provided in the foaming space, and since the foaming space inevitably occupies some room, space inside the refrigeration unit is not occupied when the foaming space is in use. A compressor compartment is connected to the outside through a silencer channel, weakening the sound energy during heat dissipation to the outside of the compressor compartment. This reduces the noise radiated outwards from the compressor compartment, thus achieving a good balance between noise reduction and space utilization in the refrigeration unit. The noise generated by the refrigeration unit is small, the space utilization rate is high, and the user experience is greatly improved. It should be understood that, although this specification is described on the basis of embodiments, not all embodiments contain only one independent technical solution. This form of narration in this specification is for the sake of clarity only. Those skilled in the art should consider this specification in its entirety. The technical solutions in the respective embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art, provided they are in accordance with the following claims. The detailed descriptions set forth above are merely specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention, which is disclosed in the following claims. Modifications made by persons skilled in the art in accordance with these embodiments shall fall within the scope of protection of the appended claims.
Claims
1. A refrigeration apparatus (100), comprising a compressor compartment (2) and a housing (3), wherein the compressor compartment (2) is provided within the housing (3), and a foam space is provided between the compressor compartment (2) and the housing (3); the refrigeration apparatus (100) further comprises a silencer (1), wherein the compressor compartment (2) comprises an internal vent (210) communicating with the outside, the housing (3) comprises an external vent (31) opposite the internal vent (210), the silencer (1) comprises a silencer channel (12), and the silencer channel (12) is communicated with the internal vent (210) and the external vent (31), characterized in that the silencer (1) is provided within the foam space outside the compressor compartment (2),1. The refrigeration apparatus (100) of claim 1, wherein after the silencing device (1) is fixed in the foaming space, a foaming agent is injected into the foaming space.
2. The refrigeration apparatus (100) of claim 1, wherein each of the left and right sides of the compressor compartment (2) is provided with the internal vent (210), wherein the silencing device (1) and the external vent (31) correspond to the internal vent (210), wherein one internal vent (210) is provided as an air inlet, and the other internal vent (210) is provided as an air outlet.
3. The refrigeration apparatus (100) of claim 2, wherein the compressor compartment (2) comprises a cavity (20) and side walls (21) arranged on both sides of the cavity (20), the side walls (21) being provided with the internal vents (210).The internal vents (210) are in communication with the cavity (20), and a plurality of silencer devices (1) are fixed to the side walls (21).
4. The refrigeration apparatus (100) according to claim 3, wherein a side wall (21) is provided with a plurality of first fastening parts (22), the silencer device (1) comprises a silencer body (11) and a plurality of second fastening parts (13) arranged on one side of the silencer body (11) facing the side wall (21) and attached to the first fastening parts (22), and the side wall (21) is fixedly connected to the silencer device (1) by means of a fastening element (4).
5. The refrigeration apparatus (100) according to claim 4, wherein the first clamping part (22) comprises a clamping opening (221) and a first clamping block (222),The second clamping part (13) comprises a second clamping block (131) and a clamping slot (132), the second clamping block (131) being connected to the first clamping block (222) through the clamping opening (221), and the first clamping block (222) being fixed in the clamping slot (132).
6. The cooling apparatus (100) according to claim 3, wherein a flow channel (10) is provided between the silencing device (1) and the housing (3) and / or the side wall (21), and the flow channel (10) communicates with a portion of the foaming space above the silencing device (1) and a portion of the foaming space below the silencing device (1).
7. The cooling apparatus (100) according to claim 3, wherein the silencing device (1) is hermetically sealed with the housing (3),The silencing device (1) comprises a silencing body (11) and a protective part (14) provided between the housing (3) and the silencing body (11), and the protective part (14) comprises a protective mesh (141) provided transversely between the silencing channel (12) and the external vent (31); the protective part (14) is attached to a port of the silencing channel (12).
8. The cooling apparatus (100) according to claim 1, wherein the silencing device (1) comprises a plurality of silencing cavities, and the silencing cavities comprise openings (151) to the silencing channel (12).
9. The cooling apparatus (100) according to claim 8, wherein at least two of the silencing cavities have different volumes.
10. A method of producing a cooling apparatus (100).wherein the refrigeration apparatus (100) is configured as the refrigeration apparatus (100) according to claim 1, and the production method comprises the following steps: permanently connecting the silencer device (1) in the foaming space outside the compressor compartment (2); mounting the housing (3); and injecting a foaming agent into the foaming space.