Cryogenic quick-freezing low-noise freezer

Abstract

The utility model discloses a cryogenic quick-freezing low-noise freezer which comprises a freezer body, a power chamber and a freezing chamber are arranged in the freezer body, a refrigerating system is arranged in the freezer body, and the refrigerating system comprises a compressor assembly arranged in the power chamber, a condenser pipeline arranged on the periphery of the freezing chamber and an evaporator assembly. The compressor assembly comprises a mixed working medium compressor, the output end of the mixed working medium compressor communicates with the input end of a condenser pipeline, the output end of the condenser pipeline communicates with the input end of the evaporator assembly through a capillary tube, and the output end of the evaporator assembly communicates with the input end of the mixed working medium compressor. The temperature of the freezing chamber can reach-40 DEG C, the freezing speed is higher, and food can be better preserved; the compressor assembly further comprises a noise reduction structure arranged in the power chamber, so that the freezer is mute in the starting and stopping process of the compressor, and the noise is not higher than 38 dB (A).

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a deep-cooling, quick-freezing and low-noise refrigerator. Background Art

[0002] A freezer, also called a refrigerator, is a device that preserves food and other items at low temperatures. There are two types of freezers: home and commercial. Commercial freezers are used in restaurants, water bars, food processing, and supermarkets. The basic function of a freezer is to refrigerate and keep the inside of the box at an appropriate low temperature. The refrigeration system generally consists of four basic components: a compressor, a condenser, a capillary tube or a thermal expansion valve, and an evaporator. Refrigerant is a liquid that can boil at low temperatures under low pressure and absorbs heat when boiling. The refrigerant circulates continuously in the refrigeration system. The compressor increases the gas pressure of the refrigerant, creating liquefaction conditions. When passing through the condenser, it condenses and liquefies to release heat, then reduces the pressure and temperature when passing through the capillary tube, and then boils and vaporizes to absorb heat when passing through the evaporator.

[0003] With the improvement of living standards, the market needs freezers with lower refrigeration temperatures. The lower the temperature inside the box, the better the freezing effect, the longer the food can be stored, and the faster the freezing speed. However, when the freezer reaches a lower temperature, the noise generated by major components such as the compressor also becomes greater. Therefore, there is an urgent need for a freezer with a lower freezing temperature and low noise. Utility Model Content

[0004] The utility model aims to provide a deep-freezing quick-freezing low-noise freezer to solve the problem mentioned in the background art that as the freezer reaches a lower temperature, the noise generated by main components such as a compressor also increases.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A deep-freezing, quick-freezing, low-noise freezer comprises a cabinet body, wherein a power chamber and a freezing chamber are arranged in the cabinet body, wherein a refrigeration system is arranged in the cabinet body, wherein the refrigeration system comprises a compressor assembly arranged in the power chamber, and a condenser pipeline and an evaporator assembly arranged on the periphery of the freezing chamber, wherein the compressor assembly comprises a mixed working fluid compressor, wherein an output end of the mixed working fluid compressor is connected to an input end of the condenser pipeline, an output end of the condenser pipeline is connected to an input end of the evaporator assembly via a capillary tube, and an output end of the evaporator assembly is connected to an input end of the mixed working fluid compressor; wherein the compressor assembly further comprises a noise reduction structure arranged in the power chamber.

[0007] As a further solution of the utility model: the condenser pipeline is a serpentine coil formed by combining a plurality of U-shaped tubes.

[0008] As a further solution of the utility model: the evaporator assembly has a spiral refrigeration pipeline arranged around the freezing chamber.

[0009] As a further solution of the utility model: the noise reduction structure includes a mounting plate fixedly mounted in the power chamber and two vibration damping members symmetrically arranged on the mounting plate, and the mixed working fluid compressor is fixedly mounted on the two vibration damping members.

[0010] As a further solution of the utility model: the shock-absorbing component includes a shock-absorbing foot pad, a shock-absorbing plate and a fixing plate, and the plurality of shock-absorbing foot pads are respectively fixedly arranged on the mounting plate, the shock-absorbing plate and the fixing plate are both fixedly arranged on the top of the plurality of shock-absorbing foot pads, and the fixing plate is fixedly arranged on the top of the shock-absorbing plate.

[0011] As a further solution of the utility model: a heat-insulating layer is further provided in the cabinet, and the heat-insulating layer fills the gap between the freezing chamber and the power chamber.

[0012] The utility model has the following beneficial effects:

[0013] The utility model adopts a mixed working medium refrigeration system of R290 / R600a to reduce the evaporation temperature of the system and accelerate the cooling effect. The large-area evaporator, condenser and new mixed working medium compressor with large cooling capacity enhance the heat exchange effect of the refrigeration system, so that the temperature of the freezing chamber can reach -40℃, and the freezing speed is also faster, which can better preserve food.

[0014] The utility model provides two vibration-damping parts, on which the mixed working fluid compressor is fixedly mounted, and the vibration generated during the start-up and shutdown of the compressor is transmitted to the vibration-damping foot pad through the vibration-damping plate, thereby reducing noise, making the refrigerator silent during the start-up and shutdown of the compressor, and the noise is not higher than 38dB(A). BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a deep-freezing, quick-freezing and low-noise freezer of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a deep-freezing, quick-freezing, low-noise freezer of the utility model;

[0018] Figure 3 It is a schematic diagram of the refrigeration system of the utility model;

[0019] Figure 4 This is a schematic diagram of the noise reduction structure of the utility model;

[0020] Figure 5It is a schematic diagram of the structure of the vibration damping component of the utility model.

[0021] In the figure: 1. cabinet; 11. power room; 12. freezer compartment; 2. compressor assembly; 3. condenser piping; 4. evaporator assembly; 5. capillary tube; 6. noise reduction structure; 61. mounting plate; 62. vibration damping part; 621. shock-absorbing foot pad; 622. shock-absorbing plate; 623. fixing plate; 7. insulation layer; 8. mixed working fluid compressor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The lowest internal temperature of ordinary freezers can only reach -30℃. With the improvement of living standards, the market needs freezers with lower temperatures. The lower the temperature inside the box, the better the freezing effect, the longer the food can be stored, and the faster the freezing speed. However, when the freezer reaches a lower temperature, the noise generated by the main components such as the compressor will also be greater. Therefore, there is an urgent need for a freezer with a lower freezing temperature and low noise.

[0024] To solve the above problems, see Figure 1-5 As shown, the embodiment of the utility model provides a deep-freezing quick-freezing low-noise freezer, including a cabinet body 1, as shown Figure 2 As shown, a power room 11 and a freezer room 12 are provided in the cabinet 1, and a refrigeration system is provided in the cabinet 1. The refrigeration system includes a compressor assembly 2 arranged in the power room 11, and a condenser pipeline 3 and an evaporator assembly 4 arranged on the periphery of the freezer room 12. The compressor assembly 2 includes a mixed working fluid compressor 8, and the output end of the mixed working fluid compressor 8 is connected to the input end of the condenser pipeline 3, and the output end of the condenser pipeline 3 is connected to the input end of the evaporator assembly 4 through a capillary 5, and the output end of the evaporator assembly 4 is connected to the input end of the mixed working fluid compressor 8; the compressor assembly 2 also includes a noise reduction structure 6 arranged in the power room 11.

[0025] Specifically, the mixed refrigerant compressor 8 uses a mixture of two refrigerants, R290 and R600a. The application of this mixed refrigerant system can improve the refrigeration efficiency while reducing the impact on the environment. R290 is a new environmentally friendly refrigerant with a low global warming potential (GWP) and ozone depletion potential (ODP). R600a is a new hydrocarbon refrigerant with excellent performance. It is derived from natural ingredients, does not damage the ozone layer, has no greenhouse effect, and is green and environmentally friendly. It has a large latent heat of evaporation and a strong cooling capacity; it has good flow properties, low delivery pressure, low power consumption, and a slow load temperature recovery rate. R600a is mainly used to replace R12 refrigerant and is now mostly used in household refrigerator equipment.

[0026] The mixed refrigerant system can give full play to the advantages of both refrigerants by mixing R290 and R600a, improve refrigeration efficiency, and reduce dependence on a single refrigerant, thereby reducing the impact on the environment.

[0027] Furthermore, the condenser pipe 3 is a serpentine coil formed by a combination of multiple U-shaped pipes. The condenser pipe 3 of this structural design increases the area of ​​the condenser pipe 3. The large-area condenser is conducive to heat dissipation and improves liquefaction efficiency. The evaporator assembly 4 has a spiral refrigeration pipe arranged around the freezing chamber 12. The evaporator of this structural arrangement has a larger evaporation area and a better refrigeration effect.

[0028] Preferably, a heat-insulating layer 7 is further provided in the cabinet body 1, and the heat-insulating layer 7 fills the gap between the freezing chamber 12 and the power chamber 11. The provision of the heat-insulating layer 7 improves the heat-insulating effect of the freezing chamber 12, making the low-temperature effect of the freezing chamber 12 last longer.

[0029] like Figure 4 As shown, the noise reduction structure 6 includes a mounting plate 61 fixedly mounted in the power chamber 11 and two vibration damping members 62 symmetrically arranged on the mounting plate 61. The mixed working fluid compressor 8 is fixedly mounted on the two vibration damping members 62. The two vibration damping members 62 play a role in shock absorption when the compressor is started and stopped, thereby reducing noise.

[0030] Specifically, Figure 5 As shown, the vibration damping member 62 includes a vibration damping pad 621, a vibration damping plate 622 and a fixing plate 623. The plurality of vibration damping pads 621 are fixedly arranged on the mounting plate 61 respectively. The vibration damping plate 622 and the fixing plate 623 are both fixedly installed on the top of the plurality of vibration damping pads 621. The fixing plate 623 is fixedly installed on the top of the vibration damping plate 622. With the vibration damping member 62 of this structural design, the vibration generated during the start-up and shutdown of the compressor is transmitted to the vibration damping pad 621 through the vibration damping plate 622, thereby reducing noise and making the freezer silent during the start-up and shutdown of the compressor.

[0031] In summary, the utility model provides a deep-freezing, quick-freezing, low-noise freezer, which adopts a mixed refrigerant refrigeration system of R290 / R600a, reduces the evaporation temperature of the system and accelerates the cooling effect. The large-area evaporator, condenser and the new mixed refrigerant compressor 8 with large cooling capacity enhance the heat exchange effect of the refrigeration system, so that the temperature of the freezing chamber 12 can reach -40°C, and the freezing speed is also faster, which can better preserve food. At the same time, by setting two vibration damping parts 62, the vibration generated during the start-up and shutdown of the compressor is transmitted to the vibration-absorbing foot pad 621 through the vibration damping plate 622, thereby reducing the noise, making the freezer silent during the start-up and shutdown of the compressor, and the noise is not higher than 38dB (A).

[0032] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, it should not be understood as a limitation on the present invention.

[0033] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] The above detailed description of the preferred embodiments of the utility model should not be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A deep-freezing, quick-freezing, low-noise freezer, comprising a cabinet (1), wherein a power chamber (11) and a freezing chamber (12) are arranged in the cabinet (1), wherein a refrigeration system is arranged in the cabinet (1), wherein the refrigeration system comprises a compressor assembly (2) arranged in the power chamber (11), and a condenser pipeline (3) and an evaporator assembly (4) arranged on the periphery of the freezing chamber (12), wherein: The compressor assembly (2) comprises a mixed working fluid compressor (8), the output end of the mixed working fluid compressor (8) is connected to the input end of the condenser pipeline (3), the output end of the condenser pipeline (3) is connected to the input end of the evaporator assembly (4) through a capillary (5), and the output end of the evaporator assembly (4) is connected to the input end of the mixed working fluid compressor (8); the compressor assembly (2) also comprises a noise reduction structure (6) arranged in the power chamber (11).

2. A deep-freezing and quick-freezing low-noise freezer according to claim 1, characterized in that: The condenser pipeline (3) is a serpentine coil formed by combining a plurality of U-shaped tubes.

3. A deep-freezing and quick-freezing low-noise freezer according to claim 2, characterized in that: The evaporator assembly (4) has a spiral refrigeration pipeline arranged around the freezing chamber (12).

4. A deep-freezing and quick-freezing low-noise freezer according to claim 1, characterized in that: The noise reduction structure (6) comprises a mounting plate (61) fixedly mounted in the power chamber (11) and two vibration damping members (62) symmetrically arranged on the mounting plate (61), and the mixed working fluid compressor (8) is fixedly mounted on the two vibration damping members (62).

5. A deep-freezing and quick-freezing low-noise freezer according to claim 4, characterized in that: The vibration-absorbing member (62) comprises a vibration-absorbing foot pad (621), a vibration-absorbing plate (622) and a fixing plate (623); a plurality of the vibration-absorbing foot pads (621) are respectively fixedly arranged on the mounting plate (61); the vibration-absorbing plate (622) and the fixing plate (623) are both fixedly installed on the top of the plurality of vibration-absorbing foot pads (621); and the fixing plate (623) is fixedly installed on the top of the vibration-absorbing plate (622).

6. A deep-freezing and quick-freezing low-noise freezer according to any one of claims 1 to 5, characterized in that: A heat-insulating layer (7) is also provided in the cabinet (1), and the heat-insulating layer (7) is filled in the gap between the freezing chamber (12) and the power chamber (11).

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