Refrigeration equipment

Abstract

The invention provides refrigeration equipment which comprises an inner container forming a storage chamber, an air duct cover plate, a drawer and a cold supply assembly, the air duct cover plate is located on the front side of the rear wall of the inner container, and a cold air supply duct allowing cold air to circulate is formed between the air duct cover plate and the rear wall. The air duct cover plate is provided with a first air supply opening communicating with the storage chamber and the cold air supply duct and a first air return opening located above the first air supply opening. An air supply duct and an air return duct which are communicated with the drawer and the cold air supply duct are arranged between the drawer and the air duct cover plate; the cold supply assembly comprises an evaporator arranged in the cold supply air duct and a fan used for driving cold air to flow through the evaporator from the first air return opening and then flow to the first air supply opening and the air supply air duct. Through the design of the air duct cover plate and the cold supply assembly, cold air cooled by the evaporator directly enters the storage chamber and the drawer, the path of the cold air is reduced, and the refrigeration efficiency of the refrigeration equipment is improved.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to a refrigeration device. Background Art

[0002] As people's demand for food storage increases, there are often a variety of ingredients in the refrigeration equipment, and the storage conditions of different ingredients are different. For example, different fruits, dried fruits, meat to be thawed, etc. This requires a special temperature-adjustable area in the refrigeration equipment to store items with special needs separately. Summary of the invention

[0003] The present invention provides a refrigeration device to solve one of the above problems.

[0004] In order to achieve the above object, the technical solution provided by the present invention is as follows:

[0005] The present invention provides a refrigeration device, the refrigeration device forms an inner liner of a storage compartment, the inner liner having a rear wall;

[0006] An air duct cover plate is located at the front side of the rear wall, a cooling air duct for cooling air to flow is formed between the air duct cover plate and the rear wall, and a first air supply port connecting the storage compartment and the cooling air duct and a first air return port located above the first air supply port are provided on the air duct cover plate;

[0007] A drawer is located in front of the air duct cover plate, and an air supply duct and an air return duct are provided between the drawer and the air duct cover plate, connecting the drawer and the cooling air duct;

[0008] The cooling component includes an evaporator arranged in the cooling air duct and a fan for driving cold air to flow from the first return air port through the evaporator to the first air supply port and the air supply air duct.

[0009] Furthermore, two first return air outlets are provided on the air duct cover plate, and the two first return air outlets are respectively located on both sides of the first air supply outlet in a transverse direction.

[0010] Furthermore, the air supply duct is located below the evaporator.

[0011] Furthermore, the fan is located above the evaporator, and the cooling assembly also includes a wind hood surrounded by the outside of the fan, the wind hood is fixed to the rear side of the air duct cover, and the wind hood has an air inlet end adjacent to the first return air outlet and an air outlet end facing the evaporator.

[0012] Furthermore, the first return air outlet is correspondingly arranged on both sides of the fan, and the wind cover has a wind shield located below the first return air outlet.

[0013] Furthermore, the front portion of the air duct cover is provided with a pair of air duct structures that at least partially extend into the drawer, and the supply air duct and the return air duct respectively penetrate the above-mentioned pair of air duct structures in the front-to-back direction, and at least part of the outer peripheral side of the air duct structure is provided with a sealing ring that abuts between the air duct cover and the drawer.

[0014] Furthermore, the refrigeration device also includes a damper for opening or closing the air supply duct, and the opening size of the damper relative to the air supply duct is adjustable.

[0015] Further, the damper is located at the rear side of the air duct cover and is pivotally connected to the air duct cover;

[0016] or,

[0017] The cooling air duct is also provided with an air guide plate located below the evaporator, the air guide plate extends upward and forward, the air supply air duct penetrates the air guide plate in the front-to-back direction, and the air door is pivotally connected to the air guide plate.

[0018] Furthermore, the refrigeration device also includes a control unit for controlling and adjusting the opening or closing of the damper, and a temperature sensor for detecting the temperature in the drawer, and the temperature sensor is communicatively connected with the control unit.

[0019] Furthermore, the evaporator is an inflation evaporator, and the inflation evaporator is provided with ventilation holes penetrating the thickness thereof, and the ventilation holes are arranged corresponding to the first air outlet.

[0020] Compared with the prior art, the beneficial effect of the present invention is that the refrigeration equipment of the present invention, through the design of the air duct cover and the cooling component, allows the cold air cooled by the evaporator to directly enter the storage compartment and the drawer, thereby reducing the path of the cold air and improving the refrigeration efficiency of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a hidden inner tank of a refrigeration device according to an embodiment of the present invention.

[0022] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the refrigeration equipment from another angle.

[0023] Figure 3 yes Figure 1 Exploded view of the components of the refrigeration equipment.

[0024] Figure 4 yes Figure 3 Schematic diagram of the structure of the central air duct cover from another angle.

[0025] Figure 5 yes Figure 1Local structure cross-sectional view along AA direction.

[0026] Figure 6 yes Figure 5 Schematic diagram of the local structure with the damper at B in the fully closed state.

[0027] Figure 7 for Figure 6 Schematic diagram of the structure with the stroke door in fully open state.

[0028] Among them, 10-air duct cover, 12-first air supply outlet, 13-first return air outlet, 14-air duct structure, 141-air supply duct, 142-return air duct, 15-sealing ring, 16-auxiliary return air outlet, 20-drawer, 21-drawer body, 22-drawer cover, 221-cover body, 222-extension plate, 223-opening, 30-cooling component, 31-evaporator, 311-ventilation hole, 32-fan, 33-wind hood, 331-air inlet end, 332-air outlet end, 333-wind shield, 40-damper, 41-base, 42-door panel, 50-air guide plate, 51-second air supply outlet, 60-temperature sensor. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the auxiliary figures, and are only for the convenience of simplifying the description of the present invention, rather than indicating or implying that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention. Specifically, in the present invention, the user's operating surface is the front, the direction toward the ground is the bottom, and conversely, the direction away from the ground is the upper, and other descriptions indicating directions are defined based on "upper" and "lower".

[0031] In various drawings of the present invention, for the convenience of illustration, some sizes of structures or parts are exaggerated relative to other structural parts, and therefore, they are only used to illustrate the basic structure of the subject matter of the present invention.

[0032] The present invention provides a refrigeration device, such as Figures 1 to 7As shown, the refrigeration device includes an inner tank (not shown) forming a storage compartment, the inner tank has a rear wall (not shown), the refrigeration device also includes an air duct cover plate 10 located at the front side of the rear wall, a drawer 20 located at the front side of the air duct cover plate 10, and a cooling assembly 30 located at the rear side of the air duct cover plate 10, a cooling air duct (not shown) for cooling air to flow is formed between the air duct cover plate 10 and the rear wall of the inner tank, and the air duct cover plate 10 is provided with a first air supply port 12 connecting the storage compartment and the cooling air duct, a first air supply port 13 located at the rear side of the air duct cover plate 10, and a first air supply port 14 located at the rear side of the air duct cover plate 10. A first return air outlet 13 is provided above the first air supply outlet 12; an air supply duct 141 and an air return duct 142 are provided between the drawer 20 and the air duct cover 10, which are connected to the drawer 20 and the cooling air duct; the cooling component 30 includes an evaporator 31 and a fan 32, and the fan 32 is used to drive cold air from the first return air outlet 13 to flow through the evaporator 31 to the first air supply outlet 12 and the air supply duct 141, and then part of the cold air enters the storage room, and the other part of the cold air enters the drawer 20.

[0033] The refrigeration device of the present invention is designed with the air duct cover plate 10 and the cooling assembly 30 so that the cold air cooled by the evaporator 31 directly enters the storage compartment and the drawer 20, thereby reducing the path of the cold air and improving the refrigeration efficiency of the refrigeration device.

[0034] The inner container also includes a side wall connected to the side end of the rear wall and extending forward, a top wall connected to the upper end of the rear wall and extending forward, and a bottom wall connected to the lower end of the rear wall and extending forward. The rear wall, side walls, top wall and bottom wall are arranged to form a storage compartment.

[0035] The air duct cover 10 is snapped onto the front side of the rear wall and is spaced apart from the rear wall. The first air supply outlet 12 includes a plurality of air supply outlets 12 and is spaced apart in the up and down directions. The first return air outlet 13 is located above the first air supply outlet 12, which facilitates the air that has undergone heat exchange in the storage room to flow from the first return air outlet 13 to the cooling air duct.

[0036] Preferably, Figures 1 to 4 As shown, the air duct cover plate 10 is provided with two first return air outlets 13, and the two first return air outlets 13 are respectively located on both sides of the first supply air outlet 12 in the lateral direction, so that the supply air path flowing into the storage compartment and the return air path flowing into the cooling air duct are separated and do not interfere with each other, thereby avoiding waste of cold energy and improving the refrigeration efficiency of the refrigeration equipment.

[0037] Preferably, the first return air outlet 13 is a grille-shaped return air window. Of course, the first return air outlet 13 can be a single return air window.

[0038] like Figures 2 to 4As shown, the air duct cover 10 is further provided with an auxiliary return air port 16 , which is located on the air duct cover 10 at the rear side of the drawer 20 , and is located on both sides of the first air supply port 12 in the lateral direction.

[0039] It can be understood that the width of the air duct cover 10 in the transverse direction is smaller than the width of the rear wall. Therefore, the gap between the side end of the air duct cover 10 and the side wall also forms a channel connecting the storage room and the cooling air duct, that is, the cold air flows from the gap to the storage room, and the hot air in the storage room flows from the gap to the cooling air duct.

[0040] The evaporator 31 is located in the cooling air duct to cool the air entering the cooling air duct to form cold air.

[0041] In the present invention, Figure 3 As shown, the evaporator 31 is plate-shaped, which can reduce the thickness of the evaporator 31 itself, thereby reducing the proportion of the cooling air duct occupied by the total thickness of the refrigeration equipment, increasing the space of the storage room in the refrigeration equipment of the same thickness, or reducing the total thickness of the refrigeration equipment under the premise of the same thickness of the storage room.

[0042] Preferably, the evaporator 31 is an inflation evaporator, which is arranged parallel to the air duct cover 10. The inflation evaporator is provided with ventilation holes 311 running through its thickness, so that the cold air cooled on the back of the inflation evaporator enters the front side of the inflation evaporator from the ventilation holes 311, reducing the path of the cold air, and then enters the storage room through the first air supply port 12.

[0043] Preferably, the ventilation hole 311 is arranged corresponding to the first air supply port 12 , that is, the cold air cooled by the back side of the inflation evaporator can directly enter the storage compartment through the ventilation hole 311 and the first air supply port 12 .

[0044] In order to improve the air circulation between the storage compartment and the cooling air duct, the fan 32 is arranged adjacent to the first return air outlet 13 . Since the first return air outlet 13 is located at the upper part of the air duct cover 10 , the fan 32 is located above the evaporator 31 .

[0045] like Figure 2 and Figure 3 As shown, the fan 32 is located above the evaporator 31, and the cooling assembly 30 also includes a wind hood 33 surrounding the outside of the fan 32, and the wind hood 33 is fixed to the rear side of the air duct cover 10, and the wind hood 33 has an air inlet end 331 adjacent to the first return air port 13 and an air outlet end 332 facing the evaporator 31.

[0046] Preferably, the air inlet end 331 is located at the rear side of the air cover 33, and the air outlet end 332 is located at the lower side of the air cover 33, so that the air inlet end 331 can have a larger air inlet area.

[0047] Of course, the air inlet end 331 may also be oriented toward the first air return port 13 , that is, the air inlet end 331 is disposed at a position where the air cover 33 is oriented toward the first air outlet 12 .

[0048] Preferably, the first return air outlet 13 is correspondingly arranged on both sides of the fan 32, and the wind cover 33 has a wind shield 333 located below the first return air outlet 13, and the wind shield 333 can block the air entering the cooling air duct from the first return air outlet 13 around the fan 32, thereby increasing the total amount of air entering the wind cover 33.

[0049] The drawer 20 is located below the evaporator 31 , that is, the air supply duct 141 is provided below the evaporator 31 , and the cold air cooled by the evaporator 31 enters the drawer 20 through the air supply duct 141 .

[0050] Specifically, Figures 1 to 3 As shown, the drawer 20 includes a drawer body 21 and a drawer cover 22 above the drawer body 21. In a specific embodiment, the drawer cover 22 is fixed on the inner shell, and the drawer body 21 slides back and forth relative to the inner shell and the drawer cover 22. The drawer cover 22 includes a cover body 221 and an extension plate 222 extending downward from the rear end of the cover body 221. The air supply duct 141 and the return air duct 142 are both connected to the drawer 20 through the extension plate 222. During the sliding of the drawer body 21, the connection between the inside of the drawer 20 and the cooling air supply duct will not be affected.

[0051] Since the drawer 20 and the air duct cover 10 are arranged at intervals, in order to achieve communication between the interior of the drawer 20 and the cooling air duct, the front portion of the air duct cover 10 is provided with a pair of air duct structures 14 that at least partially extend into the drawer 20, and the air supply duct 141 and the return air duct 142 respectively penetrate the above-mentioned pair of air duct structures 14 in the front-to-back direction, and the extension plate 222 is provided with an opening 223 for the air duct structure 14 to pass through.

[0052] In this embodiment, the pair of air duct structures 14 are arranged at intervals along the lateral direction.

[0053] Preferably, at least a portion of the outer peripheral side of the air duct structure 14 is provided with a sealing ring 15 abutting between the air duct cover plate 10 and the drawer 20 to minimize the gap between the air duct structure 14 and the extension plate 222 and improve the sealing performance of the drawer 20.

[0054] like Figures 3 to 6 As shown, Figure 3 , Figures 5 to 7 As shown, the refrigeration device also includes a damper 40 for closing or opening the air supply duct 141. Preferably, the opening size of the damper 40 relative to the air supply duct 141 is adjustable to control the amount of cold entering the drawer 20 and meet the different temperature requirements of the drawer 20.

[0055] Preferably, the damper 40 is located at the rear side of the air duct cover 10 and is pivotally connected to the air duct cover 10 . Of course, the damper 40 may also be arranged in the air supply duct 141 or at the end of the duct structure 14 located in the drawer 20 .

[0056] As a preferred embodiment of the present invention, Figure 3 As shown, the cooling air duct is further provided with an air guide plate 50 located below the evaporator 31 , and the air guide plate 50 extends obliquely toward the position of the air supply duct 141 to guide the cold air to enter the air supply duct 141 through the air guide plate 50 .

[0057] The air supply duct 141 penetrates the air guide plate 50 in the front-to-back direction. The air guide plate 50 is provided with a second air supply port 51 connecting the cooling air duct and the air supply duct 141 . The damper 40 is pivotally connected to the air guide plate 50 to cover the second air supply port 51 .

[0058] Specifically, Figure 3 As shown, the damper 40 includes a base 41 and a door panel 42 pivotally connected to the base 41. The base 41 is located at the rear end of the second air supply port 51 along the front-to-back direction, and the door panel 42 covers the opening formed by the base 41 and the air guide plate 50.

[0059] As another preferred embodiment of the present invention, the refrigeration equipment also includes a control unit (not shown) for controlling the opening size of the damper 40 and a temperature sensor 60 for detecting the temperature inside the drawer 20. The temperature sensor 60 is communicatively connected with the control unit, and the control unit controls the closing of the damper 40 and adjusts the closing size of the air supply duct 141 according to the actual temperature inside the drawer 20 detected by the temperature sensor 60.

[0060] It is understandable that the refrigeration equipment may also not be provided with a control unit, and the damper 40 can automatically control the closing of the damper 40 and adjust the size of the air supply duct 141 according to the amount of air. For example, the damper 40 can be opened by utilizing the air pressure difference between the inside of the drawer 20 and the cooling air duct. When the air pressure in the drawer 20 and the cooling air duct is balanced, the damper 40 returns to the position covering the second air supply port 51 due to the effect of gravity, thereby preventing the cold air in the drawer 20 from leaking out.

[0061] In summary, the refrigeration equipment of the present invention, through the design of the air duct cover 10 and the cooling assembly 30, allows the cold air cooled by the evaporator 31 to directly enter the storage compartment and the drawer 20, thereby reducing the path of the cold air and improving the refrigeration efficiency of the refrigeration equipment.

[0062] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0063] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention and are not intended to limit the protection scope of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigeration device, characterized in that: include: An inner container forming a storage compartment, the inner container having a rear wall; An air duct cover plate is located at the front side of the rear wall, a cooling air duct for cooling air to flow is formed between the air duct cover plate and the rear wall, and a first air supply port connecting the storage compartment and the cooling air duct and a first air return port located above the first air supply port are provided on the air duct cover plate; A drawer is located in front of the air duct cover plate, and an air supply duct and an air return duct are provided between the drawer and the air duct cover plate, connecting the drawer and the cooling air duct; The cooling component includes an evaporator arranged in the cooling air duct and a fan for driving cold air to flow from the first return air port through the evaporator to the first air supply port and the air supply air duct.

2. The refrigeration device according to claim 1, characterized in that: The air duct cover is provided with two first return air outlets, and the two first return air outlets are respectively located on both sides of the first air supply outlet in the transverse direction.

3. The refrigeration device according to claim 1, characterized in that: The air supply duct is located below the evaporator.

4. The refrigeration device according to claim 1, characterized in that: The fan is located above the evaporator, and the cooling assembly also includes a wind hood surrounding the outside of the fan, the wind hood is fixed to the rear side of the air duct cover, and the wind hood has an air inlet end adjacent to the first return air outlet and an air outlet end facing the evaporator.

5. The refrigeration device according to claim 4, characterized in that: The first return air outlet is correspondingly arranged on both sides of the fan, and the wind cover has a wind shield plate located below the first return air outlet.

6. The refrigeration device according to claim 1, characterized in that: The front portion of the air duct cover is provided with a pair of air duct structures that at least partially extend into the drawer, and the supply air duct and the return air duct respectively penetrate the above-mentioned pair of air duct structures in the front-to-back direction, and at least part of the outer peripheral side of the air duct structure is provided with a sealing ring abutting between the air duct cover and the drawer.

7. The refrigeration device according to any one of claims 1 to 6, characterized in that: The refrigeration device also includes a damper for opening or closing the air supply duct, and the opening size of the damper relative to the air supply duct is adjustable.

8. The refrigeration device according to claim 7, characterized in that: The air door is located at the rear side of the air duct cover plate and is pivotally connected to the air duct cover plate; or, The cooling air duct is also provided with an air guide plate located below the evaporator, the air guide plate extends upward and forward, the air supply air duct penetrates the air guide plate in the front-to-back direction, and the air door is pivotally connected to the air guide plate.

9. The refrigeration device according to claim 7, characterized in that: The refrigeration device further includes a control unit for controlling and adjusting the opening or closing of the damper, and a temperature sensor for detecting the temperature in the drawer, wherein the temperature sensor is communicatively connected with the control unit.

10. The refrigeration device according to any one of claims 1 to 6, characterized in that: The evaporator is an inflation evaporator, and a ventilation hole penetrating through the thickness of the inflation evaporator is provided on the inflation evaporator, and the ventilation hole is arranged corresponding to the first air outlet.

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