Refrigeration units and refrigeration equipment

Abstract

The present invention discloses a refrigeration unit and refrigeration equipment. The refrigeration unit includes: a base plate, an air outlet and a return air outlet are provided on the base plate, and a water receiving tray is also provided on the base plate, and the water receiving tray is located between the air outlet and the return air outlet; a refrigeration assembly, the refrigeration unit is provided on the base plate, and the refrigeration assembly includes a compressor, a condenser, a throttling device, and an evaporator connected together; a cover, the cover is installed on the base plate and covers the air outlet, the return air outlet, and the water receiving tray, the cover and the base plate form an evaporation chamber, the evaporator is provided in the evaporation chamber and is located above the water receiving tray, and the cover is also provided with an opening; a cold leakage prevention component, the cold leakage prevention component is provided in the opening, and the cold leakage prevention component is provided with a plurality of first drainage slits for draining water in the water receiving tray to the outside. While ensuring the smooth discharge of defrost water, the leakage of cold in the evaporation chamber is reduced, thereby improving the cooling effect and reducing energy consumption.

Description

Technical Field

[0001] The present invention belongs to the technical field of refrigeration, and in particular relates to a refrigeration unit and refrigeration equipment. Background Art

[0002] Refrigeration equipment (such as refrigerators or freezers) is a common household appliance in daily life. To increase storage space, the compressor compartment is often mounted on top, allowing users to easily access items from the bottom of the refrigeration unit. Typically, the compressor, condenser, and evaporator, along with other components such as a fan, are mounted on the floor of the compressor compartment. A housing forms an evaporation chamber, within which the evaporator resides. During actual use, the evaporator requires regular defrosting, and the defrosted water collected during this process collects in a water tray located at the bottom of the evaporator. The water in the water tray must be promptly drained from the evaporation chamber formed by the housing. Typically, the water tray is connected to an external drain pipe to facilitate this drainage. However, during normal refrigeration, the refrigeration in the evaporation chamber easily leaks out through the drain pipe, resulting in poor cooling performance and high energy consumption. The present invention addresses the technical problem of designing a refrigeration device that reduces cooling leakage, thereby improving cooling performance and reducing energy consumption. Summary of the Invention

[0003] The present invention aims to solve the technical problems existing in the prior art and provides a refrigeration unit and a refrigeration device, which can reduce the leakage of cold air in the evaporation chamber while ensuring the smooth discharge of defrost water, thereby improving the refrigeration effect and reducing energy consumption.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] The invention provides a refrigeration unit, comprising:

[0006] A bottom plate, wherein an air outlet and an air return outlet are provided on the bottom plate, and a water receiving tray is further provided on the bottom plate, wherein the water receiving tray is located between the air outlet and the air return outlet;

[0007] A refrigeration assembly, the refrigeration assembly being arranged on the base plate, the refrigeration assembly comprising a compressor, a condenser, a throttling device and an evaporator connected together;

[0008] a cover shell, the cover shell being mounted on the bottom plate and covering the air outlet, the return air outlet and the water receiving tray, the cover shell and the bottom plate forming an evaporation cavity, the evaporator being arranged in the evaporation cavity and located above the water receiving tray, and the cover shell being further provided with an opening;

[0009] A cold leakage prevention component is arranged in the opening, and the cold leakage prevention component is provided with a plurality of first drainage gaps for draining water in the water receiving tray outwards.

[0010] Furthermore, a water flow channel is formed between the cold leakage prevention component and the bottom plate, and the cold leakage prevention component is provided with a first shielding portion located at the outer end of the water flow channel, and the first drainage gap is provided on the first shielding portion.

[0011] Furthermore, the cold leakage prevention component is provided with a second shielding portion located inside the water flow channel, and a second drainage gap is provided on the second shielding portion.

[0012] Furthermore, the anti-cold leakage component includes: a top plate; two side plates, the side plates are connected to the corresponding side edges of the top plate and are located below the top plate; a first baffle, the first baffle is connected to one end portion of the top plate and is located below the top plate, the first baffle is arranged on the outside of the evaporation chamber, the first baffle is provided with the first drainage gap, and the first baffle forms the first shielding portion; a second baffle, the second baffle is connected to the middle part of the top plate and is located below the top plate, the second baffle is provided with the second drainage gap, and the second baffle forms the second shielding portion.

[0013] Furthermore, a third drainage gap is formed between the first baffle and the corresponding end portion of the side plate; and a fourth drainage gap is formed between the second baffle and the inner surface of the side plate.

[0014] Furthermore, an air guide ring is provided on the return air outlet, an evaporation fan is provided in the air guide ring, and the air guide ring and the evaporation fan are located in the evaporation chamber; the refrigeration unit also includes: a guide component, the guide component is provided on the base plate and located in the evaporation chamber, and the guide component is used to guide the condensation water formed on the cover shell to the water receiving tray.

[0015] Furthermore, the guide assembly includes two guide bodies, which are arranged on both sides of the air guide ring and are sandwiched between the air guide ring and the cover shell; the guide body includes a first side wall, a second side wall, a third side wall and a guide surface, and the guide surface is connected and intersected with the first side wall, the second side wall and the third side wall respectively, the first side wall abuts against the outer peripheral wall of the air guide ring, the second side wall abuts against the side wall of the water receiving tray, and the third side wall abuts against the inner wall of the cover shell, the intersection position of the first side wall and the guide surface is higher than the end face of the air guide ring, and the intersection position of the second side wall and the guide surface is higher than the side wall of the water receiving tray; the condensation water dripping on the guide body flows into the water receiving tray through the guide surface.

[0016] Furthermore, the guide surface is a slope structure, and the guide surface gradually decreases from the side away from the water receiving tray to the side close to the water receiving tray, and gradually decreases from the side close to the air guide ring to the side away from the air guide ring.

[0017] Furthermore, a water retaining rib is provided on the side of the guide surface close to the air guide ring.

[0018] The invention also provides a refrigeration device, including a cabinet body, a storage cavity formed in the cabinet body, and the above-mentioned refrigeration unit; the refrigeration unit is arranged on the top of the cabinet body, and the air outlet and return air outlet of the refrigeration unit are respectively connected to the storage cavity.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are: by arranging an opening on the cover, the evaporation chamber is connected with the outside through the opening, and an anti-cold leakage component is provided in the opening, and a drainage gap is provided on the anti-cold leakage component to meet the requirement that the water in the water receiving tray is discharged to the outside of the evaporation chamber; at the same time, the anti-cold leakage component is inserted into the opening to seal the opening. Since the drainage gap is small, the drainage gap can effectively reduce the loss of cold air in the evaporation chamber under the premise of meeting the drainage requirements, thereby achieving the reduction of cold air leakage in the evaporation chamber while meeting the requirement of smooth discharge of defrost water, thereby improving the cooling effect and reducing energy consumption.

[0020] Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of an embodiment of a refrigeration device of the present invention;

[0023] Figure 2 This is a schematic structural diagram of a refrigeration unit in an embodiment of a refrigeration device of the present invention;

[0024] Figure 3 This is an exploded view of the assembly of the base plate, the cover and the anti-leakage cooling component in the embodiment of the refrigeration equipment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a cold leakage prevention component in an embodiment of a refrigeration device of the present invention;

[0026] Figure 5This is an assembly diagram of the base plate and the guide assembly in an embodiment of the refrigeration equipment of the present invention;

[0027] Figure 6 Schematic diagram of the structure of the flow guide in the refrigeration equipment embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] like Figure 1-Figure 4 As shown, the refrigeration equipment of this embodiment includes a cabinet 1 and a refrigeration unit 2. A storage cavity is formed in the cabinet 1, and a door 10 is also provided on the cabinet 1 to open and close the storage cavity. The refrigeration unit 2 includes a base plate 21, a refrigeration assembly 22 and a cover 23, wherein the refrigeration assembly 22 is mounted on the base plate 21 and includes a compressor 221, a condenser 222, a throttling device (not shown) and an evaporator (not shown) connected together; an air outlet 211 and a return air outlet 212 are provided on the base plate 21, and a water receiving tray 213 is also provided on the base plate 21, and the water receiving tray 213 is located between the air outlet 211 and the return air outlet 212; the cover 23 is mounted on the base plate 21 and covers the air outlet 211, the return air outlet 212 and the water receiving tray, and the cover 23 and the base plate 21 form an evaporation cavity, and the evaporator is arranged in the evaporation cavity and above the water receiving tray 213. Among them, in order to ensure that the water in the water receiving tray 213 is smoothly output to the outside of the evaporation chamber while reducing the loss of coldness in the evaporation chamber, an opening 231 is also provided on the cover shell 23; at the same time, an anti-cold leakage component 3 is provided in the opening 231, and the anti-cold leakage component 3 is provided with a plurality of first drainage gaps 301 for discharging the water in the water receiving tray 213 to the outside.

[0031] Specifically, a refrigeration unit 2 is arranged on the top of the cabinet 1 of the refrigeration equipment of this embodiment, and the refrigeration unit 2 is fixed to the top of the cabinet 1 through the bottom plate 21, and the air outlet 211 and the return air outlet 212 on the bottom plate 21 are connected to the storage cavity in the cabinet 1 to realize the circulation of air between the evaporation cavity and the storage cavity, wherein an evaporation fan 24 is arranged in the evaporation cavity. Under the action of the evaporation fan 24, the air in the storage cavity enters the evaporation cavity through the return air outlet 212 and exchanges heat with the evaporator to form cold air. The cold air will be input into the storage cavity through the air outlet 211 to realize the cooling of the items in the storage cavity. During the evaporator's defrosting process, defrosted water is collected in the water collection tray 213 at the bottom. The water collection tray 213 is provided with a drainage channel 2131 extending toward the opening 231. Water in the water collection tray 213 is directed through the drainage channel 2131 toward the opening 231, and ultimately drains out of the evaporation chamber through the opening 231. As the water exits the water collection tray 213 through the opening 231, it passes through the anti-leakage cooling component 3, enters the anti-leakage cooling component 3 through the opening 231, and ultimately drains out through the first drainage slit 301. The first drainage slit 301 in the anti-leakage cooling component 3 satisfies the requirement for external drainage. Furthermore, due to the small size of the first drainage slit 301, under normal cooling conditions, since the anti-leakage cooling component 3 is inserted into and blocks the opening 231, the amount of cold air leaking out of the evaporation chamber through the first drainage slit 301 is minimal, effectively reducing cold air leakage and improving cooling efficiency.

[0032] A water channel is formed between the cooling leak prevention component 3 and the drainage channel 2131 on the bottom plate 21. The cooling leak prevention component 3 is equipped with a first shielding portion located at the outer end of the water channel, and the first shielding portion is provided with a first drainage slit 301. Specifically, the cooling leak prevention component 3 is inserted into the opening 231 and covers the drainage channel 2131. The first shielding portion disposed on the exterior of the cooling leak prevention component 3 can shield the end of the water channel located outside the evaporation chamber, thereby more effectively reducing cooling loss. Preferably, the cooling leak prevention component 3 is equipped with a second shielding portion located within the water channel, and the second shielding portion is provided with a second drainage slit 302. Specifically, the second shielding portion within the water channel achieves a double barrier. Water from the water receiving tray 213 is discharged sequentially through the second drainage slit 302 and the first drainage slit 301. The cooling energy within the evaporation chamber is blocked by the two shielding portions, effectively limiting cooling loss and further improving the cooling effect.

[0033] In addition, the specific embodiment of the cold leakage prevention component 3 may include: a top plate 31; two side plates 32; a first baffle 33; and a second baffle 34. The side plates 32 are connected to corresponding sides of the top plate 31 and are located below the top plate 31. The first baffle 33 is connected to one end of the top plate 31 and is located below the top plate 31. The first baffle 33 is disposed outside the evaporation chamber and is provided with a first drainage slit 301. The first baffle 33 forms a first shielding portion. The second baffle 34 is connected to the middle portion of the top plate 31 and is located below the top plate 31. The second baffle 34 is provided with a second drainage slit 302. The second baffle 34 forms a second shielding portion. Specifically, the cold leakage prevention component 3 is a shell-like structure with one end open. On the one hand, the cold leakage prevention component 3 can effectively cover the drainage channel 2131, and on the other hand, it can more closely abut the edge of the opening 231 to block the opening 231. To facilitate assembly of the anti-leakage cooling component 3, a snap-in interface 321 is provided on the side panel 32, while a raised rib 214 is provided on the bottom panel 21 to positionally secure the housing 23. The drainage channel 2131 extends through the rib 214 to the exterior of the evaporation chamber. The side panel 32 of the anti-leakage cooling component 3 is snapped onto the rib 214 via the snap-in interface 321, sandwiching the drainage channel 2131 between the two side panels 32. This allows the anti-leakage cooling component 3 to enclose the drainage channel 2131, ensuring smooth drainage of water from the drainage channel 2131 while effectively reducing the amount of cooling air leaking from the drainage channel 2131. Furthermore, to improve drainage efficiency, a third drainage gap 303 is formed between the corresponding ends of the first baffle 33 and the side panel 32, and a fourth drainage gap 304 is formed between the second baffle 34 and the inner surface of the side panel 32.

[0034] In addition, the water discharged from the evaporation chamber can flow directly onto the bottom plate 21, where it can be automatically evaporated using the heat generated by the compressor 221 and condenser 222 outside the evaporation chamber. Of course, a drainage hole (not shown) can be provided on the bottom plate 21. The drainage hole is located at a lower position than the bottom plate 21 and is connected to a drainage pipe. The water discharged from the evaporation chamber flows into the drainage hole and is discharged through the drainage pipe. This embodiment does not limit the subsequent treatment method of the water discharged from the evaporation chamber.

[0035] By arranging an opening on the cover shell, the evaporation chamber is connected with the outside through the opening, and an anti-cold leakage component is provided in the opening, and a drainage gap is provided on the anti-cold leakage component to meet the requirement that the water in the water receiving tray is discharged to the outside of the evaporation chamber; at the same time, the anti-cold leakage component is inserted into the opening to seal the opening. Since the drainage gap is small, the drainage gap can effectively reduce the loss of cold air in the evaporation chamber under the premise of meeting the drainage requirements, thereby achieving the reduction of cold air leakage in the evaporation chamber while meeting the requirement of smooth discharge of defrost water, thereby improving the cooling effect and reducing energy consumption.

[0036] Based on the above technical solution, optional, such as Figures 1-6 As shown, during cooling operation, the evaporator's temperature within the evaporation chamber is relatively low. The air within the storage chamber is affected by the moisture contained in the items within. After entering the evaporation chamber through the return air inlet 212, the air condenses into water droplets upon contact with the cooler housing 23. This condensed water then flows down the housing 23 onto the bottom plate 21. To ensure that the condensed water flowing down the housing 23 is smoothly directed to the water receiving tray 213 and discharged, thereby preventing water from accumulating on the bottom plate 21 and overflowing from the return air inlet 212, an air guide ring 215 is provided on the return air inlet 212. Furthermore, a guide assembly is provided on the bottom plate 21 within the evaporation chamber. This guide assembly is used to guide the condensed water formed on the housing 23 to the water receiving tray 213. Specifically, the condensed water formed on the housing 23 flows downward due to gravity onto the guide assembly, where it is then directed through the guide assembly into the water receiving tray 213. In this way, condensation water can be collected by the water receiving tray 213 and discharged to the outside of the evaporation chamber. One side wall of the flow guide assembly abuts the peripheral wall of the air guide ring 215, one side wall of the flow guide assembly abuts the water receiving tray 213, and one side wall of the flow guide assembly abuts the inner wall of the cover 23. Condensation water condensed on the cover 23 flows along the inner wall of the cover 23 to the flow guide assembly, which then guides the condensation water dripping onto it into the water receiving tray 213.

[0037] Furthermore, the flow guide assembly may include two flow guides 100, which are located on either side of the air guide ring 215. A certain space is defined between the water receiving tray 213 and the air guide ring 215. The space between the water receiving tray 213 and one side of the air guide ring 215 is designated as space A10, and the space between the water receiving tray 213 and the other side of the air guide ring 215 is designated as space B20. One flow guide 100 is located within space A10, and the other flow guide 100 is located within space B20. These flow guides are used to guide condensation flowing down the inner wall of the housing 23 into the water receiving tray 213, thereby allowing for timely discharge of the condensation. The outer contour of the flow guide 100 is determined by the specific shapes of space A10 and space B20.

[0038] The body guide 100 includes a first sidewall 110, a second sidewall 120, a third sidewall 130, and a guide surface 140. The guide surface 140 intersects with the first sidewall 110, the second sidewall 120, and the third sidewall 130, respectively. The first sidewall 110 abuts against the outer side of the air guide ring 215, the second sidewall 120 abuts against the sidewall of the water tray 213, and the third sidewall 130 abuts against the inner wall of the housing 23. The surface of the body guide 100 facing away from the guide surface 140 is called the bottom surface. The bottom surface is a flat surface that abuts against the bottom plate 21. To achieve its diversion function, the guide surface 140 is configured as an inclined surface, gradually decreasing from the side away from the water tray 213 to the side close to the water tray 250, and gradually decreasing from the side close to the air guide ring 215 to the side away from the air guide ring 215.

[0039] The side where the cover shell 23 abuts the third side wall 130 is an arc-shaped structure. Correspondingly, the third side wall 130 is also set to an arc-shaped structure, so that the third side wall 130 can better fit and abut against the inner wall of the cover shell 23, so that the condensation water flowing down the cover shell 23 can flow to the guide surface 140.

[0040] To prevent condensation dripping onto the guide surface 140 from flowing out of the return air port 212, the intersection (marked S) between the first sidewall 110 and the guide surface 140 is set higher than the air guide ring 215. To prevent condensation dripping onto the guide surface 140 from flowing smoothly into the water receiving pan 213, the intersection (marked P) between the second sidewall 120 and the guide surface 140 is set higher than the sidewalls of the water receiving pan 213. Condensation condensed on the housing 23 flows down the inner wall of the housing 23 onto the guide surface 140, where it then flows into the water receiving pan 213.

[0041] The inclination angle of the guide surface 140 from the side away from the water receiving tray 213 to the side close to the water receiving tray 213 is 8-12°, preferably 10°; the inclination angle of the guide surface 140 from the side close to the air guide ring 215 to the side away from the air guide ring 215 is 8-12°, preferably 10°.

[0042] In order to prevent the condensation water dripping on the guide surface 140 near the return air outlet 212 from splashing and leaking out of the return air outlet 212, this embodiment provides a water retaining rib 141 on the side of the guide surface 140 near the air guide ring 215, and the water retaining rib 141 extends along the intersection of the guide surface 140 and the first side wall 110.

[0043] When the two guide bodies 100 are installed on the base plate 21, the side of the guide surface 140 away from the air guide ring 215 is retracted into the side wall of the water receiving tray 213 abutting against it, so as to ensure that the condensation water on the guide surface 140 can flow into the water receiving tray 213 instead of flowing to the outside of the water receiving tray 213.

[0044] The two guide bodies 100 are both made of high-density thermal insulation foam, so that the guide bodies 100 can achieve the function of guiding flow while also having the function of thermal insulation, thereby reducing the loss of cold in the evaporation chamber.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A refrigeration unit, characterized in that: include: A bottom plate, wherein an air outlet and an air return outlet are provided on the bottom plate, and a water receiving tray is further provided on the bottom plate, wherein the water receiving tray is located between the air outlet and the air return outlet; A refrigeration assembly, the refrigeration assembly being arranged on the base plate, the refrigeration assembly comprising a compressor, a condenser, a throttling device and an evaporator connected together; a cover shell, the cover shell being mounted on the bottom plate and covering the air outlet, the return air outlet and the water receiving tray, the cover shell and the bottom plate forming an evaporation cavity, the evaporator being arranged in the evaporation cavity and located above the water receiving tray, and the cover shell being further provided with an opening; Anti-leakage cold member, the anti-leakage cold member is provided in the opening, the anti-leakage cold member is provided with a plurality of first drainage slits for draining the water in the water receiving tray outward; The return air port is provided with an air guide ring, an evaporation fan is provided in the air guide ring, and the air guide ring and the evaporation fan are located in the evaporation cavity; The refrigeration unit further comprises: a flow guide assembly, which is arranged on the bottom plate and located in the evaporation chamber; the flow guide assembly comprises two flow guide bodies, which are arranged on both sides of the air guide ring, and the flow guide bodies are sandwiched between the air guide ring and the cover shell; the flow guide body comprises a first side wall, a second side wall, a third side wall and a flow guide surface, the flow guide surface respectively intersects with the first side wall, the second side wall and the third side wall, the first side wall abuts with the outer peripheral wall of the air guide ring, the second side wall abuts with the side wall of the water receiving tray, and the third side wall abuts with the inner wall of the cover shell, the intersection position of the first side wall and the flow guide surface is higher than the end surface of the air guide ring, and the intersection position of the second side wall and the flow guide surface is higher than the side wall of the water receiving tray; condensation water dripping on the flow guide body flows into the water receiving tray through the guide surface; The water receiving tray is provided with a drainage channel extending toward the opening, and the cold leakage preventing component is inserted into the opening and covers the drainage channel.

2. The refrigeration unit according to claim 1, characterized in that: A water flow channel is formed between the cold leakage prevention component and the bottom plate. The cold leakage prevention component is provided with a first shielding portion located at an outer end portion of the water flow channel. The first drainage gap is provided on the first shielding portion.

3. The refrigeration unit according to claim 2, characterized in that: The cold leakage prevention component is provided with a second shielding portion located inside the water flow channel, and a second drainage gap is provided on the second shielding portion.

4. The refrigeration unit according to claim 3, characterized in that: The anti-leakage cold component comprises: roof; two side panels, the side panels being connected to corresponding sides of the top panel and being located below the top panel; a first baffle, the first baffle being connected to one end of the top plate and located below the top plate, the first baffle being disposed outside the evaporation chamber, the first drainage slit being disposed on the first baffle, and forming the first shielding portion; The second baffle is connected to the middle of the top plate and is located below the top plate. The second drainage gap is provided on the second baffle, and the second baffle forms the second shielding portion.

5. The refrigeration unit according to claim 4, characterized in that: A third drainage gap is formed between the first baffle and corresponding ends of the side plate; and a fourth drainage gap is formed between the second baffle and the inner surface of the side plate.

6. The refrigeration unit according to claim 1, characterized in that: The guide surface is a slope structure, and the guide surface gradually decreases from the side away from the water receiving tray to the side close to the water receiving tray, and gradually decreases from the side close to the air guide ring to the side away from the air guide ring.

7. The refrigeration unit according to claim 1, characterized in that: A water retaining rib is provided on one side of the guide surface close to the air guide ring.

8. A refrigeration device, comprising a cabinet, wherein a storage cavity is formed in the cabinet, characterized in that: It also includes a refrigeration unit as described in any one of claims 1-7; the refrigeration unit is arranged on the top of the cabinet, and the air outlet and return air outlet of the refrigeration unit are respectively connected to the storage cavity.

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