A refrigeration device

Abstract

This invention provides a refrigeration device, including a housing comprising an inner liner and an outer shell. The top of the housing has an opening, and a foam layer is provided between the inner liner and the outer shell. A refrigeration cavity located within the foam layer and a mounting groove located outside the foam layer are provided on one side of the bottom of the housing. An assembly interface is provided between the mounting groove and the refrigeration cavity. Air duct inlets are provided on both sides of the refrigeration cavity, and an air duct outlet is provided on the upper inner wall of the inner liner. A compressor chamber includes a cold end and a hot end arranged horizontally. The cold end is installed in the refrigeration cavity, and the hot end is installed in the mounting groove. The cold end is provided with a cross-flow fan, an evaporator, and a throttling device, and the hot end is provided with a compressor and a condenser. A foam sealing plate filled in the assembly interface is provided between the cold end and the hot end. The horizontal arrangement of the cold end and the hot end ensures the volume ratio of the storage space and the uniformity and stability of the temperature field within the storage cavity.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and more particularly to a refrigeration device. Background Technology

[0002] Horizontal freezers typically employ two types of refrigeration systems: centralized (within the cabinet) and embedded (within the casing). In a centralized system, the compressor, condenser, and evaporator are installed at the bottom of the cabinet. In an embedded system, the condenser uses spiral-wound tubing embedded within the foam layer of the freezer casing. Both of these systems require refrigerant recovery and piping replacement when damaged, making repairs complex.

[0003] To simplify the maintenance process, some horizontal freezers use a split compressor chamber, which integrates the compressor, condenser, throttling device, evaporator and other components into the freezer as a module. However, after long-term use, the connection points of most of these split compressor chambers are prone to cold leakage, which affects the power consumption of the product. In addition, the vertical arrangement of these compressor chambers affects both the volume ratio of the cabinet and the temperature uniformity inside the cabinet. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a refrigeration device, including a housing, the housing comprising an inner liner and an outer shell, the top of the housing having an opening, a foam layer between the inner liner and the outer shell, a refrigeration cavity located within the foam layer and a mounting groove located outside the foam layer on one side of the bottom of the housing, an assembly interface being provided between the mounting groove and the refrigeration cavity, air duct inlets being provided on both sides of the refrigeration cavity, and an air duct outlet being provided on the upper inner wall of the inner liner;

[0005] The compressor chamber includes a cold end and a hot end arranged horizontally. The cold end is installed in the refrigeration cavity, and the hot end is installed in the mounting groove. The cold end is equipped with a cross-flow fan, an evaporator, and a throttling device, and the hot end is equipped with a compressor and a condenser. A foam sealing plate filled in the assembly interface is provided between the cold end and the hot end.

[0006] Specifically, the foamed sealing plate is provided with a multi-level stepped sealing layer, and a slot is provided along the circumference of the stepped sealing layer. A sealing strip is embedded in the slot. A stepped sealing groove matching the stepped sealing layer is provided at the assembly interface. The sealing strip is filled between the stepped sealing layer and the stepped sealing groove in a continuously elastically compressed state.

[0007] Specifically, the hot end is provided with a first base plate, an L-shaped fixing plate is fixedly installed on the first base plate, the foam sealing plate is disposed on the vertical plate of the L-shaped fixing plate, and a horizontally disposed second base plate is disposed on the side wall of the foam sealing plate.

[0008] Specifically, on the horizontal plate of the L-shaped fixing plate, a compressor, a condenser, and a cooling fan are sequentially assembled along the width direction of the box.

[0009] Specifically, the evaporator and the cross-flow fan are fixed on the second base plate, and the side of the evaporator near the hot end is fixedly connected to the foam sealing plate.

[0010] Specifically, a cover is provided at the cold end, and the cover, together with the second base plate and the foam sealing plate, forms a refrigeration cavity. The cover includes an outer shell and a heat insulation layer that at least partially surrounds the evaporator.

[0011] Specifically, a cross-flow fan is provided on the side of the evaporator near the hot end, and the heat insulation layer is provided at least around the top, left and right sides and the air outlet side of the evaporator. The heat insulation layer has a vent corresponding to the position of the cross-flow fan, and the size of the vent matches the size of the air inlet of the cross-flow fan.

[0012] Specifically, the air duct is embedded in the foam layer, and multiple air duct outlets are provided on the inner wall of the upper part of the inner liner along the length of the box.

[0013] Specifically, the cooling fan is an axial flow fan, and an air inlet is provided on the side wall corresponding to the hot end in the width direction of the housing, and an air outlet is provided on the side of the condenser in the length direction of the housing. Protective grilles are installed at the air inlet and the air outlet.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. This invention integrates the entire refrigeration system, including the compressor, condenser, and evaporator, into a modular compressor chamber. When the refrigeration system is damaged, the compressor chamber can be removed, and the refrigeration system can be disassembled and replaced.

[0016] 2. This invention sets up a foamed sealing plate between the cold end and the hot end, and adopts a labyrinth structure with multi-level stepped sealing layers and stepped sealing grooves to effectively extend the leakage path and form a primary seal. Elastic sealing strips are embedded in the grooves of the stepped sealing layer to fill the micro gaps in a continuously compressed state, forming a secondary elastic compensation seal. In long-term use, this effectively offsets the gaps that may be caused by compressor vibration, ensuring a long-lasting and reliable sealing and heat preservation effect.

[0017] 3. The cold and hot ends of this invention are arranged horizontally, which does not require occupying the storage space of the cabinet's storage chamber, thus ensuring the volume ratio of the storage space. The air duct is embedded in the foam layer of the cabinet, and the cross-flow fan forms a forced convection circulation system in the cabinet. Cold air is drawn into the cooling chamber from the bottom of the inner liner, cooled by the evaporator, and then transported to the air duct by the cross-flow fan. It is then sent out through the air duct outlet at the top of the inner liner, realizing three-dimensional air supply from top to bottom. In addition, the evaporator is equipped with a cover containing a heat insulation layer, which effectively isolates the low-temperature evaporator from the storage chamber, solving the problems of large temperature difference and local overcooling, and ensuring the uniformity and stability of the temperature field in the storage chamber. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of the press chamber assembly state of the present invention;

[0019] Figure 2 This is a schematic diagram of the compressor chamber structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the box structure of the present invention.

[0021] Reference numerals: 1. Housing; 11. Inner liner; 12. Outer shell; 13. Foam layer; 14. Mounting groove; 15. Assembly interface; 151. Stepped sealing groove; 16. Air duct; 161. Air duct inlet; 162. Air duct outlet; 17. Air inlet; 18. Air outlet; 2. Compressor chamber; 21. Hot end; 211. First base plate; 212. L-shaped fixing plate; 213. Compressor; 214. Condenser; 215. Cooling fan; 22. Cold end; 221. Second base plate; 222. Evaporator; 223. Cross-flow fan; 23. Foam sealing plate; 231. Stepped sealing layer; 232. Sealing strip; 24. Cover; 241. Outer shell; 242. Insulation layer; 3. Door. Detailed Implementation

[0022] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0023] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-3 As shown, the present invention provides a refrigeration device, particularly a horizontal refrigeration device such as a horizontal freezer. The refrigeration device includes a housing 1 and a compressor chamber 2 disposed on one side of the housing 1. The compressor chamber 2 contains the entire refrigeration system. A foamed sealing plate 23 is disposed between the cold end 22 and the hot end 21 of the compressor chamber 2. This design simplifies the repair process. When the refrigeration system is damaged, the compressor chamber 2 can be removed, and the refrigeration system can be disassembled and replaced.

[0025] The cabinet 1 includes an inner liner 11 and an outer shell 12. The inner liner 11 encloses a storage chamber, the upper part of which can hold multiple storage baskets. The top of the cabinet 1 has an opening communicating with the storage chamber, and a door 3 is fitted at the opening to allow the storage chamber to be opened and closed. A foam layer 13 for insulation is filled between the inner liner 11 and the outer shell 12 to prevent heat exchange between the inside and outside of the cabinet 1. A mounting groove 14 is provided on one side of the bottom of the cabinet 1, and the mounting groove 14 has an assembly interface 15 communicating with the inside of the inner liner 11.

[0026] The press chamber 2 is assembled in the mounting slot 14. The press chamber 2 includes a cold end 22 and a hot end 21 arranged in a horizontal direction. The cold end 22 and the hot end 21 are connected by a refrigeration pipe. A foam sealing plate 23 is provided between the cold end 22 and the hot end 21 to physically isolate them. The foam sealing plate 23 fills and seals the assembly interface 15 to block heat transfer between the inside and outside of the inner liner 11 and improve the sealing and heat preservation performance of the cabinet 1. The cold end 22 is inserted into the bottom of the inner liner 11 through the assembly interface 15, and the hot end 21 is located on the outside of the inner liner 11 and assembled in the mounting slot 14. The cold end 22 and the hot end 21 are arranged in a horizontal direction, so they do not occupy the storage space of the storage chamber of the cabinet 1, thus ensuring the volume ratio of the storage space.

[0027] The hot end 21 is located on the outside of the foam layer 13 of the housing 1, and includes a horizontally arranged first base plate 211. An L-shaped fixing plate 212 is fixedly installed on the first base plate 211. On the horizontal plate of the L-shaped fixing plate 212, a compressor 213, a condenser 214 and a cooling fan 215 are sequentially assembled along the width direction of the housing 1. The cooling fan 215 is preferably an axial flow fan.

[0028] An air inlet 17 is provided on the side wall of the housing 1 corresponding to the hot end 21 in the width direction, and an air outlet 18 is provided on the side of the condenser 214 in the length direction of the housing 1. Both the air inlet 17 and the air outlet 18 are equipped with protective grilles. The cooling fan 215 is used to create a negative pressure environment inside the hot end 21 chamber, driving external cold air to be drawn into the hot end 21 from the air inlet 17 and blown towards the side of the condenser 214. The air carrying the heat of the condenser 214 and the compressor 213 is blown out from the air outlet 18, thereby achieving heat dissipation of the hot end 21.

[0029] A foamed sealing plate 23 is fixedly installed on the vertical plate of the L-shaped fixing plate 212. The interior of the foamed sealing plate 23 is filled with a foam layer, which has the dual functions of heat insulation and sealing. The foamed sealing plate 23 adopts a two-stage composite sealing structure, including a multi-stage stepped sealing layer 231 and an elastic sealing strip 232. The foamed sealing plate 23 has a multi-stage stepped sealing layer 231, and the assembly interface 15 is provided with a stepped sealing groove 151 that matches the stepped sealing layer 231. The stepped sealing layer 231 is tightly fitted into the corresponding stepped sealing groove 151, forming a first-stage sealing structure. The multi-stage stepped concave-convex fit structure forms a multi-stage extended labyrinth structure, which greatly extends the potential leakage path of cold air, effectively blocking the leakage of cold air from the inner liner 11 to the outside, while preventing the transfer of heat from the outside of the box 1 to the inside, thus greatly improving the sealing and heat preservation effect. Along the circumference of the stepped sealing layer 231, at least one stepped sealing layer 231 has a groove on its surface, and a sealing strip 232 made of elastic material is embedded in the groove, forming a secondary sealing structure. The sealing strip 232 fills the space between the stepped sealing layer 231 and the stepped sealing groove 151 in a continuously elastically compressed state, which can further seal the microscopic gaps between the foam sealing plate 23 and the assembly interface 15. At the same time, during long-term use of the equipment, even if gaps appear between the stepped sealing layer 231 and the stepped sealing groove 151 due to the vibration of the compressor 213, the sealing strip 232 can still maintain continuous contact with the mating surface due to its own elastic deformation, ensuring the sealing stability and reliability of the foam sealing plate 23 for long-term use.

[0030] A horizontally positioned second base plate 221 is provided on the side wall of the foamed sealing plate 23. The components of the cold end 22 are mounted on the second base plate 221, and the bottom of the second base plate 221 is supported on the bottom plate of the inner liner 11. The cold end 22 is equipped with an evaporator 222, a throttling device, and a cross-flow fan 223. The throttling device is connected to the refrigeration pipe between the evaporator 222 and the condenser 214. The cross-flow fan 223 is located on the side of the evaporator 222 near the hot end 21. The bottom of the evaporator 222 is fixedly mounted on the second base plate 221, and the side of the evaporator 222 near the hot end 21 is fixedly connected to the foamed sealing plate 23, further strengthening the connection between the cold end 22 and the foamed sealing plate 23.

[0031] A cover 24 is also provided at the cold end 22, which, together with the second base plate 221 and the foam sealing plate 23, forms a refrigeration cavity. The cover 24 includes an outer shell 241 and a heat insulation layer 242 that is at least partially surrounding the evaporator 222. The heat insulation layer 242 is filled with foam material. Specifically, the heat insulation layer 242 is at least located around the top, left and right sides, and air outlet side of the evaporator 222, separating the low-temperature evaporator 222 from the storage chamber above the inner liner 11. The heat insulation layer 242 on the air outlet side of the evaporator 222 has ventilation openings corresponding to the position of the cross-flow fan 223, and the size of the ventilation openings matches the size of the air inlet of the cross-flow fan 223. This design of the heat insulation layer 242 can significantly improve the temperature uniformity inside the cabinet 1, preventing local overcooling during the evaporator 222's refrigeration operation and reducing the upward conduction of heat generated during the defrosting heating of the evaporator 222 to the storage chamber, thus reducing temperature fluctuations in the storage chamber.

[0032] An air duct 16 is embedded in the foam layer 13 of the housing 1. Air duct inlets 161 communicating with the air duct 16 are opened on both sides of the top of the refrigeration cavity. Multiple air duct outlets 162 are opened along the length of the housing 1 on the upper inner wall of the inner liner 11. The height of the air duct outlets 162 is not lower than the height of the bottom of the storage basket in the storage cavity. A cross-flow fan 223 is used to create a negative pressure environment in the refrigeration cavity, driving the cold air at the bottom of the inner liner 11 to flow back into the refrigeration cavity. After the cold air completes heat exchange and cooling with the evaporator 222, it is transported upward by the cross-flow fan 223 into the air duct 16, and then sent into the upper part of the storage cavity through the air duct outlets 162. Under the negative pressure of the cross-flow fan 223, the cold air exchanges heat with the stored items in the storage cavity from top to bottom, and then falls back to the bottom of the inner liner 11 and is drawn into the refrigeration cavity, forming a complete cold air circulation, ensuring that the stored items in the storage cavity are always in a stable low temperature environment.

[0033] The assembly process of this equipment is as follows: The modular press chamber 2 is pre-assembled on the tooling. The tooling is supported under the first base plate 211 and the second base plate 221. The cold end 22, the hot end 21, the foam sealing plate 23 and the whole refrigeration system are pre-assembled into an integrated chamber. The stepped sealing layer 231 of the foam sealing plate 23 is aligned with the assembly interface 15. The press chamber 2 is pushed into the mounting groove 14 of the box 1 through the assembly interface 15. Then, from the opening at the top of the box 1, the cover 24 is assembled downward to the corresponding position of the cold end 22. The press chamber 2 and the box 1, and the cover 24 and the cold end 22 are locked and fixed with bolts respectively to complete the assembly of the whole machine. This greatly simplifies the assembly process and improves production efficiency.

[0034] When repairing this equipment: When the refrigeration system malfunctions, lay the housing down, remove the corresponding bolts, remove the cover 24 and the faulty compressor chamber 2 in sequence, and then put the pre-assembled new compressor chamber 2 into the mounting slot 14. Reset the cover 24 and lock it in place. This completes the replacement of the entire refrigeration system without disassembling the main body of the housing 1 and the refrigeration system, which greatly reduces the difficulty and time of maintenance.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A refrigeration device, characterized in that, include: The box (1) includes an inner liner (11) and an outer shell (12). The top of the box (1) has an opening. A foam layer (13) is provided between the inner liner (11) and the outer shell (12). A cooling cavity located in the foam layer (13) and an installation groove (14) located outside the foam layer (13) are provided on one side of the bottom of the box (1). An assembly interface (15) is provided between the installation groove (14) and the cooling cavity. Air duct inlets (161) are provided on both sides of the cooling cavity. An air duct outlet (162) is provided on the upper inner wall of the inner liner (11). The compressor chamber (2) includes a cold end (22) and a hot end (21) arranged in a horizontal direction. The cold end (22) is installed in the refrigeration chamber, and the hot end (21) is installed in the mounting groove (14). The cold end (22) is provided with a cross-flow fan (223), an evaporator (222) and a throttling device. The hot end (21) is provided with a compressor (213) and a condenser (214). A foam sealing plate (23) filled in the assembly interface (15) is provided between the cold end (22) and the hot end (21).

2. The refrigeration equipment according to claim 1, characterized in that, The foamed sealing plate (23) is provided with a multi-level stepped sealing layer (231), and a slot is provided along the circumference of the stepped sealing layer (231). A sealing strip (232) is embedded in the slot. A stepped sealing groove (151) matching the stepped sealing layer (231) is provided at the assembly interface (15). The sealing strip (232) is filled between the stepped sealing layer (231) and the stepped sealing groove (151) in a continuously elastically compressed state.

3. The refrigeration equipment according to claim 1, characterized in that, The hot end (21) is provided with a first base plate (211), and an L-shaped fixing plate (212) is fixedly installed on the first base plate (211). The foam sealing plate (23) is provided on the vertical plate of the L-shaped fixing plate (212), and a horizontally arranged second base plate (221) is provided on the side wall of the foam sealing plate (23).

4. The refrigeration equipment according to claim 3, characterized in that, On the horizontal plate of the L-shaped fixing plate (212), a compressor (213), a condenser (214) and a cooling fan (215) are sequentially assembled along the width direction of the box (1).

5. The refrigeration equipment according to claim 3, characterized in that, The evaporator (222) and the cross-flow fan (223) are fixed on the second base plate (221), and the side of the evaporator (222) near the hot end (21) is fixedly connected to the foam sealing plate (23).

6. The refrigeration equipment according to claim 3, characterized in that, A cover (24) is provided at the cold end (22). The cover (24), together with the second base plate (221) and the foam sealing plate (23), forms a refrigeration cavity. The cover (24) includes an outer shell (241) and a heat insulation layer (242) that is at least partially surrounding the evaporator (222).

7. The refrigeration equipment according to claim 6, characterized in that, The evaporator (222) is provided with a cross-flow fan (223) on the side near the hot end (21). The heat insulation layer (242) is at least surrounded on the top, left and right sides and the air outlet side of the evaporator (222). The heat insulation layer (242) has a ventilation opening at the position corresponding to the cross-flow fan (223). The size of the ventilation opening matches the size of the air inlet of the cross-flow fan (223).

8. The refrigeration equipment according to claim 1, characterized in that, The air duct (16) is embedded in the foam layer (13), and the inner wall of the upper part of the inner liner (11) is provided with multiple air duct outlets (162) along the length of the box (1).

9. The refrigeration equipment according to claim 4, characterized in that, The cooling fan (215) is an axial flow fan. The side wall of the housing (1) corresponding to the hot end (21) is provided with an air inlet (17) in the width direction. The housing (1) is provided with an air outlet (18) on the side of the condenser (214) in the length direction. Protective grilles are installed at the air inlet (17) and the air outlet (18).

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