A refrigerator

Abstract

The utility model discloses a refrigerator, include: box, inner bag, insulating layer, compressor and evaporator, inner bag, it sets up in the box, the inner bag includes inner bag body and air duct, the air duct is along the inner bag body extension setting, the inner bag body is set up with air outlet and return air inlet, the air outlet with return air inlet passes through the air duct intercommunication, insulating layer, it is filled between the box with the inner bag, compressor, it sets up between the box with the insulating layer, evaporator, it extends to the compressor's above along the air duct. In view of the problem pointed out in the background art, develop a kind of refrigerator, make full use of the space setting evaporator of compressor step above air duct, guarantee refrigerator inner bag volume, reduce the size of refrigerator complete machine.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a freezer. Background Technology

[0002] Freezers are common household appliances. Freezers are divided into horizontal and vertical types, with horizontal freezers being more widely used due to their larger storage capacity.

[0003] The compressor is located at the bottom of the freezer cabinet. The insulation layer around the compressor forms a step, which in turn creates a step within the inner liner. This creates an air duct in the space between the inner liner and the insulation layer. In traditional freezers, the evaporator extends vertically within the air duct, mounted above the compressor. Due to limited vertical space, the evaporator's width must be increased to achieve optimal cooling, resulting in a reduced inner liner volume or an increased overall freezer size. In traditional air-cooled horizontal freezers, the space above the compressor step and the horizontal extension of the inner liner serves only as a return air space, failing to fully utilize the available space. Utility Model Content

[0004] To address the problems mentioned in the background technology, a freezer is developed that makes full use of the space above the air duct of the compressor step to install the evaporator, ensuring the volume of the freezer's inner liner and reducing the overall size of the freezer.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution: In one aspect, this application also relates to a freezer, comprising: Box; The inner liner is disposed inside the box. The inner liner includes an inner liner body and an air duct. The air duct extends along the inner liner body. An air outlet and an air return outlet are provided on the inner liner body. The air outlet and the air return outlet are connected through the air duct. An insulation layer is filled between the box body and the inner liner; A compressor is disposed between the housing and the insulation layer; An evaporator that extends along the air duct to above the compressor.

[0006] In some embodiments of this application, the air duct includes a first extended air duct and a second extended air duct, the first extended air duct being connected to the second extended air duct; the second extended air duct extends above the compressor; the evaporator extends along the first extended air duct and the second extended air duct. Because the second extended air duct extends above the compressor, and the evaporator extends into the second extended air duct, the space between the compressor and the inner liner is fully utilized. This ensures more efficient use of the space inside the freezer, resulting in a smaller overall size of the freezer while maintaining its volume.

[0007] In some embodiments of this application, a clearance step is formed on the inner liner to avoid the compressor, and the second extended air duct is arranged along the first bend of the clearance step; the return air vent is formed on the second bend of the clearance step; and the evaporator extends into the second extended air duct. Because the evaporator extends into the second extended air duct, the space between the compressor and the inner liner can be fully utilized. By extending the length of the evaporator, the cooling effect of the evaporator is ensured, while occupying only the volume of the inner liner without increasing the overall size of the freezer.

[0008] In some embodiments of this application, the first extended air duct extends vertically, and the second extended air duct extends horizontally; the evaporator includes a vertical extension section and a horizontal extension section; the vertical extension section extends along the first extended air duct, and the horizontal extension section extends along the second extended air duct. Since the vertical and horizontal extension sections of the evaporator are respectively arranged within the first and second extended air ducts, the space between the compressor and the inner liner, as well as the space between the inner liner and the cabinet, can be fully utilized. By extending the length of the evaporator, the cooling effect of the evaporator is ensured, while occupying the volume of the inner liner without increasing the overall size of the freezer.

[0009] In some embodiments of this application, the inner liner includes an air duct cover and an air duct insulation layer. The air duct cover extends within the inner liner to divide it into an inner liner body and an air duct. The air outlet and the air return outlet are located on the air duct cover. The air duct insulation layer extends onto the surface of the air duct cover near the air duct. By providing an air duct insulation layer on the side of the air duct cover near the air duct, condensation can be prevented from forming on the side of the air duct cover near the inner liner body.

[0010] In some embodiments of this application, the air outlet is formed above the duct cover and adjacent to the inner liner body, and the return air outlet is formed below the duct cover and adjacent to the inner liner body; a fan assembly is disposed in the duct near the air outlet; the fan assembly includes a fan body and a fan mounting plate, the upper end of the fan mounting plate is connected to the inner liner, and the lower end of the fan mounting plate is connected to the duct cover through the duct insulation layer; a mounting cavity is formed between the fan mounting plate and the fan cover, and the fan body is installed in the mounting cavity; the mounting cavity communicates with the air outlet; a through hole is provided on the fan mounting plate, and the mounting cavity communicates with the duct through the through hole. By providing a fan mounting plate for mounting the fan body, the fan body drives gas to flow from the evaporator to the through hole on the fan mounting plate, enters the mounting cavity, flows from the mounting cavity to the air outlet, and flows from the air outlet into the inner liner body.

[0011] In some embodiments of this application, a protrusion is formed adjacent to the through hole in the inner liner, protruding towards the housing. A flow passage is formed between the protrusion and the fan mounting plate. Gas can flow upward from the evaporator, through the flow passage, the through hole, and the air outlet, and then back into the inner liner. Since the fan body is mounted on the duct insulation layer, and the fan body protrudes from the housing side of the duct insulation layer, a protrusion is formed in the inner liner facing the housing side to ensure the flow of gas passing through the fan body, thereby ensuring a sufficient gas flow passage is formed between the protrusion and the fan body.

[0012] In some embodiments of this application, the inner liner further includes a drainage section, one end of which is connected to the air duct; the drainage section extends vertically through the insulation layer; the drainage section is located below the connection between the vertical extension section and the horizontal extension section; the vertical extension section extends from below the fan to above the drainage section; the horizontal extension section extends from above the drainage section to one side of the return air inlet. Defrosting water generated within the air duct space flows to the drainage section and is discharged through it.

[0013] In some embodiments of this application, a drain outlet is provided on the air duct, and an inclined portion is formed around the drain outlet on the air duct; the height of the inclined portion is higher than that of the drain outlet; the inclined portion is connected to the drain outlet through the drain outlet. Because the inclined portion is inclined around the drain outlet, the defrosting water in the air duct can flow naturally to the drain outlet through the inclined portion, and then be discharged outside the air duct.

[0014] On the other hand, this application also relates to a freezer, including a cabinet, an inner liner, a compressor, and an evaporator; the inner liner is disposed within the cabinet and includes an inner liner body; the compressor is disposed between the cabinet and the inner liner body, and the compressor is disposed at the bottom of the cabinet; the evaporator extends along the inner liner body; wherein the portion of the inner liner body above the compressor forms a bent profile, and the evaporator includes a portion extending along the bent profile.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are: By installing an inner liner inside the housing and setting an air duct along the inner liner body, with the two ends of the air duct connected to the air outlet and air return outlet respectively opened on the inner liner body, the evaporator is set inside the air duct and extends along the air duct. The evaporator extends from between the inner liner and the housing to above the compressor, making full use of the space inside the air duct. Under the condition of ensuring the external dimensions, the evaporator makes full use of the space inside the air duct, so that the volume of the inner liner is guaranteed.

[0016] Other features and advantages of this utility model will become clearer after reading the specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of a freezer according to an embodiment; Figure 2 This is a rear view of one embodiment of a freezer according to an embodiment; Figure 3 yes Figure 2 Sectional view along axis AA; Figure 4 yes Figure 3 A partial schematic diagram at point B in the middle; Figure 5 This is one of the internal schematic diagrams of an embodiment of a freezer according to an embodiment; Figure 6 yes Figure 5 A partial schematic diagram at point C in the middle; Figure 7 This is a second internal schematic diagram of an embodiment of a freezer according to an embodiment; Figure 8 yes Figure 7 A partial schematic diagram at point D in the middle; Figure 9 This is a third internal schematic diagram of an embodiment of a freezer according to an embodiment; Figure 10 yes Figure 9 A partial schematic diagram at point E in the middle; Figure 11 This is the fourth internal schematic diagram of an embodiment of a freezer according to an embodiment; Figure 12 yes Figure 11 Sectional view along the FF direction; Figure 13 This is the fifth internal schematic diagram of an embodiment of a freezer according to an embodiment; Figure label: 100. Box body; 110. Drainage Department; 200. Inner liner; 210. Inner liner body; 211. Air vent; 212. Return air vent; 213. Avoid stairs; 2131. First bend section; 2132. Second bend section; 220. Air duct; 221. First extended air duct; 222. Second extended air duct; 223. Drainage outlet; 224. Inclined section; 230. Fan assembly; 231. Fan body; 232. Fan mounting plate; 233. Through hole; 240. Air duct insulation layer; 250. Installation cavity; 260. Distribution channels; 270. Protrusion; 280. Air duct cover; 300. Insulation layer; 400. Compressor; 410. Compressor room; 420. Evaporating dish; 500. Evaporator; 510. Vertical extension section; 520. Horizontal extension section. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] In some embodiments of this application, a freezer is involved, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 9 , Figure 11 , Figure 12 , Figure 13 As shown, it includes a housing 100, an inner liner 200, an insulation layer 300, a compressor 400, and an evaporator 500. The inner liner 200 is installed inside the housing 100. The insulation layer 300 is filled between the inner liner 200 and the housing 100. The compressor 400 is installed between the insulation layer 300 and the housing 100.

[0026] The freezer can be a horizontal freezer. The top of the cabinet 100 has an openable door. The compressor 400 is installed at the bottom of the cabinet 100. The inner liner 200 is installed above the compressor 400 inside the cabinet 100.

[0027] Therefore, the bottom of the inner liner 200, near the compressor 400, needs to avoid the compressor 400.

[0028] like Figure 12 As shown, the inner liner 200 includes an inner liner body 210 and an air duct 220.

[0029] In order to divide the inner liner 200 into the inner liner body 210 and the air duct 220, the inner liner 200 also includes an air duct cover plate 280. The air duct cover plate 280 and one side wall of the inner liner 200 form the air duct 220, and the air duct cover plate 280 and the other side wall of the inner liner 200 form the inner liner body 210.

[0030] A refrigeration cycle system generally includes components such as a compressor 400, condenser, dryer filter, capillary tube, and evaporator connected by pipes. The working process of the refrigeration cycle system includes compression, condensation, throttling, and evaporation processes. Specifically, the compression process is as follows: After the freezer is plugged in and there is a cooling demand, the compressor 400 starts working. Low-temperature, low-pressure refrigerant from the evaporator 500 is drawn into the compressor 400 and compressed into high-temperature, high-pressure superheated gas in the compressor cylinder before being discharged into the condenser. The condensation process is as follows: The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, and its temperature continuously decreases, gradually cooling into room-temperature, high-pressure saturated vapor, and further cooling into saturated liquid. The temperature no longer decreases, and the pressure of the refrigerant remains almost constant throughout the condensation process. The throttling process is as follows: After condensation, the saturated refrigerant liquid is filtered through the dryer filter to remove moisture and impurities before flowing into the capillary tube. The capillary tube then throttles and reduces the pressure, turning the refrigerant into room-temperature, low-pressure wet vapor. The evaporation process is as follows: Room temperature, low-pressure wet vapor enters the evaporator 500, absorbs heat and vaporizes, lowering the temperature of the evaporator 500 and its surroundings, thus cooling the refrigeration chamber and turning the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting the evaporator 500 returns to the compressor 400, repeating the above process. Energy conversion occurs through the refrigerant's state change, transferring heat from inside the freezer to the outside air, thereby achieving the freezer's refrigeration cycle. When the evaporator 500 is located on the wall of the refrigeration chamber, it is a direct-cooling freezer; when the evaporator 500 is located within the freezer's air duct 220, it is a frost-free refrigerator. The above-described structural configuration and operating principle of the freezer's refrigeration cycle system are existing technologies and will not be elaborated upon in this application. This application's technical solution improves upon frost-free refrigerators. A compressor 400 is located at the bottom of the cabinet 100, within the compressor chamber 410.

[0031] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 As shown, the air duct 220 is formed between the inner liner body 210 and the compressor 400.

[0032] The air duct 220 extends from the area between the vertical side wall of the inner liner body 210 and the side wall of the box 100 to the area between the inner liner body 210 and the compressor 400.

[0033] like Figure 9 , Figure 10As shown, the inner liner body 210 has an air outlet 211 and an air return outlet 212. The air outlet 211 and the air return outlet 212 are connected to both ends of the air duct 220.

[0034] Thus, the inner liner body 210 and the air duct 220 are connected by the air outlet 211 and the air return outlet 212.

[0035] In order to achieve gas exchange between the gas in the air duct 220 and the gas in the inner liner body 210, a fan assembly 230 is installed in the air duct 220 near the air outlet 211.

[0036] The air outlet 211 is located on the upper side of the inner liner body 210. The air return outlet 212 is located on the lower side of the inner liner body 210.

[0037] By installing a fan assembly 230 at the air outlet 211, the flow between the gas inside the inner liner body 210 and the gas inside the air duct 220 is driven.

[0038] like Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 12 As shown, the evaporator 500 is installed inside the air duct 220 and outputs low-temperature gas into the air duct 220.

[0039] The evaporator 500 is located below the fan assembly 230.

[0040] However, the overall size of the cabinet 100 determines the overall size of the freezer. Given that the overall size of the cabinet 100 is fixed, the space inside the cabinet 100 must be fully utilized.

[0041] Therefore, in some embodiments of this application, the evaporator 500 is disposed within the air duct 220, and the evaporator 500 extends along the air duct 220.

[0042] The width of the evaporator 500 can be reduced by increasing its length, while maintaining the same cooling effect. Specifically, by increasing the length of the evaporator 500 extending within the air duct 220, the width of the evaporator 500 is reduced while ensuring the cooling effect, thus saving space inside the freezer.

[0043] The air duct 220 includes a first extended air duct 221 and a second extended air duct 222. The first extended air duct 221 is connected to the second extended air duct 222.

[0044] The first extended air duct 221 extends between the side wall of the inner liner body 210 along the setting direction and the side wall of the box 100 along the vertical direction.

[0045] The second extended air duct 222 is extended and disposed between the inner liner body 210 and the compressor 400.

[0046] Specifically, the second extended air duct 222 is formed above the compressor 400.

[0047] Traditionally, the evaporator 500 is installed in the first extended air duct 221. In order to ensure the cooling effect, the evaporator 500 needs to be wider, which requires increasing the overall size of the housing 100. In some embodiments of this application, the evaporator 500 can also be installed in the second extended air duct 222, thereby making fuller use of the space between the air ducts 220.

[0048] Specifically, the evaporator 500 extends from the first extended air duct 221 into the second extended air duct 222. This extends the length of the evaporator 500 to ensure that it has sufficient volume to meet the required cooling effect.

[0049] In some embodiments of this application, the first extended air duct 221 and the second extended air duct 222 may be extended in the same direction.

[0050] The first extended air duct 221 and the second extended air duct 222 are extended in the same direction and inclined, so as to avoid the compressor 400 located below.

[0051] In some other embodiments of this application, the extension direction of the first extended air duct 221 and the extension direction of the second extended air duct 222 form an angle. That is, the first extended air duct 221 and the second extended air duct 222 are bent, and the bent evaporator 500 is extended and disposed within the first extended air duct 221 and the second extended air duct 222.

[0052] The first extended air duct 221 extends between the inner liner body 210 and the box body 100.

[0053] The second extended air duct 222 extends between the inner liner body 210 and the compressor 400.

[0054] The evaporator 500 extends along the first extended air duct 221 and the second extended air duct 222. Since the extension direction of the first extended air duct 221 and the extension direction of the second extended air duct 222 form an angle, the evaporator 500 is bent along the first extended air duct 221 and the second extended air duct 222.

[0055] Specifically, in order to avoid the compressor 400, the inner liner body 210 has an avoidance step 213 formed on it.

[0056] The avoidance step 213 is used to avoid the compressor 400.

[0057] The inner liner body 210 has a bent profile portion located above the compressor 400. The bent profile portion is formed above the compressor 400 and is designed to bend and conform to the compressor chamber 410, thereby avoiding the compressor chamber 410 while ensuring that the inner liner 200 has a large volume.

[0058] The evaporator 500 includes a portion extending along the bent profile.

[0059] The avoidance staircase is formed at the bend contour section.

[0060] The obstacle avoidance staircase 213 includes a first bending section 2131 and a second bending section 2132. The first bending section 2131 extends above the compressor 400, and the second bending section 2132 extends to one side of the compressor 400.

[0061] The second extended air duct 222 extends along the first bend 2131 of the avoidance staircase 213.

[0062] The return air vent 212 is located on the second bend section 2132.

[0063] The evaporator 500 extends into the second extended air duct 222, thereby making fuller use of the area between the compressor 400 and the inner tank body 210.

[0064] Specifically, the first extended air duct 221 extends vertically. The second extended air duct 222 extends horizontally.

[0065] The evaporator 500 includes a vertical extension 510 and a horizontal extension 520. The vertical extension 510 is connected to the horizontal extension 520.

[0066] Correspondingly, the vertical extension section 510 extends along the first extension duct 221. The horizontal extension section 520 extends along the second extension duct 222.

[0067] Specifically, the evaporator 500 is an L-type evaporator.

[0068] Since the evaporator 500 produces defrost water within the air duct 220, the freezer also includes a drain section 110 to drain the defrost water out of the air duct 220. One end of the drain section 110 is connected to the air duct 220. The drain section 110 is installed vertically through the insulation layer 300.

[0069] The compressor 400 is located within the compressor compartment 410. An evaporating dish 420 is located within the compressor compartment 410.

[0070] The upper end of the drain section 110 is connected to the air duct 220, and the lower end of the drain section 110 is connected to the evaporating dish 420.

[0071] The defrosting water in the air duct 220 can flow along the drain section 110 into the evaporating dish 420.

[0072] To facilitate the discharge of defrosting water from the air duct 220, a drain outlet 223 is provided at the lowest point of the air duct 220, and the drain outlet 223 is connected to the drain section 110. The defrosting water flows in the air duct 220 to the drain outlet 223, and then flows through the drain outlet 223 and the drain section 110 into the evaporating dish 420.

[0073] In order to facilitate the defrosting water to be discharged from the drain outlet 223 through the drain section 110 to the evaporating dish 420, an inclined section 224 is formed around the drain outlet 223 on the air duct 220. The height of the inclined section 224 is higher than that of the drain outlet 223, and the inclined section 224 is connected to the drain section 110 through the drain outlet 223.

[0074] In some other embodiments of this application, the overall size of the freezer is relatively large. Correspondingly, in a freezer with a large volume, the evaporator 500 needs to ensure sufficient cooling effect, and the volume of the evaporator 500 needs to be increased. Alternatively, the evaporator 500 can be extended along the air duct 220 to increase the length of the evaporator 500, ensuring that the evaporator 500 can provide the cooling needs of the freezer with a large volume.

[0075] In other embodiments of this application, when the overall size of the freezer remains unchanged and the volume of the inner liner of the freezer needs to be increased, the evaporator 500 can be arranged along the air duct 220. Without taking up additional space, the length of the evaporator 500 can be increased and the width of the evaporator 500 can be reduced to ensure that the evaporator 500 can meet the cooling needs of the freezer.

[0076] In some embodiments of this application, a duct insulation layer 240 is provided extending from the side of the duct cover 280 near the duct 220.

[0077] The duct insulation layer 240 can be made of insulation materials such as insulation foam or sponge.

[0078] The duct insulation layer 240 is used to prevent condensation from forming on the side of the duct cover 280 near the inner liner body 210.

[0079] The upper end of the duct insulation layer 240 extends to the adjacent location of the air outlet 211, and the lower end of the duct insulation layer 240 extends to the adjacent location of the return air outlet 212.

[0080] The fan assembly 230 includes a fan body 231 and a fan mounting plate 232. The fan body 231 is mounted in the air duct 220 via the fan mounting plate 232.

[0081] The fan assembly 230 is installed near the air outlet 211 of the air duct 220.

[0082] The upper end of the fan mounting plate 232 is connected to the inner liner 200, and the lower end of the fan mounting plate 232 is connected to the duct cover plate 280 through the duct insulation layer 240.

[0083] Specifically, the fan mounting plate 232 is inclined and set inside the air duct 220.

[0084] A mounting cavity 250 is formed between the fan mounting plate 232 and the air duct cover plate 280. The fan body 231 is installed in the mounting cavity 250.

[0085] The mounting cavity 250 is connected to the air outlet 211 located above.

[0086] A through hole 233 is made on the fan mounting plate 232, and the mounting cavity 250 is connected to the air duct 220 through the through hole 233.

[0087] When the fan body 231 is running, the gas is driven by the fan body 231 in the air duct 220 and flows from the air duct 220 through the through hole 233 to the mounting cavity 250. The gas in the mounting cavity 250 flows to the air outlet 211 and then flows to the inner liner body 210. The gas in the inner liner body 210 flows back to the air duct 220 through the return air port 212.

[0088] Since the fan assembly 230 is installed inside the air duct 220, in order to ensure that the air can flow smoothly at the air duct 220 where the fan assembly 230 is installed, a protruding part 270 is formed on the housing 100 adjacent to the fan assembly 230. A flow passage 260 is formed between the protruding part 270 and the fan mounting plate 232. One end of the flow passage 260 is connected to the mounting cavity 250 through the through hole 233, and the other end of the flow passage 260 extends into the air duct 220 where the evaporator 500 is installed.

[0089] By setting an inner liner 200 inside the housing 100 and setting an air duct 220 along the inner liner body 210, with the two ends of the air duct 220 connected to the air outlet 211 and the air return vent 212 opened on the inner liner body 210 respectively, the evaporator 500 is set inside the air duct 220 and extends along the air duct 220. The evaporator 500 extends from between the inner liner 200 and the housing 100 to above the compressor 400, making full use of the space inside the air duct 220. Under the condition of ensuring the external dimensions, the evaporator 500 makes full use of the space inside the air duct 220, so that the volume of the inner liner 200 is guaranteed.

[0090] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0091] The above are merely specific embodiments of this utility model, but the protection scope of this utility model 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 this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A freezer, characterized in that... ,include: Box; The inner liner is disposed inside the box. The inner liner includes an inner liner body and an air duct. The air duct extends along the inner liner body. An air outlet and an air return outlet are provided on the inner liner body. The air outlet and the air return outlet are connected through the air duct. An insulation layer is filled between the box body and the inner liner; A compressor is disposed between the housing and the insulation layer; An evaporator that extends along the air duct to above the compressor.

2. The freezer according to claim 1, characterized in that, The air duct includes a first extended air duct and a second extended air duct, and the first extended air duct is connected to the second extended air duct. The second extended air duct extends above the compressor; The evaporator extends along the first extended air duct and the second extended air duct.

3. The freezer according to claim 2, characterized in that, An obstacle avoidance step is formed on the inner liner, the obstacle avoidance step is used to avoid the compressor, and the second extended air duct is arranged along the first bend of the obstacle avoidance step; The return air vent is formed on the second bend of the avoidance staircase; The evaporator extends into the second extended air duct.

4. The freezer according to claim 2, characterized in that, The first extended air duct extends vertically, and the second extended air duct extends horizontally. The evaporator includes a vertical extension section and a horizontal extension section; The vertical extension section extends along the first extension air duct, and the horizontal extension section extends along the second extension air duct.

5. The freezer according to claim 4, characterized in that, The inner liner includes an air duct cover and an air duct insulation layer. The air duct cover extends into the inner liner to divide the inner liner into the inner liner body and the air duct. The air outlet and the air return outlet are located on the air duct cover plate; The duct insulation layer extends onto the surface of the duct cover plate on the side closest to the duct.

6. The freezer according to claim 5, characterized in that, The air outlet is formed above the duct cover and adjacent to the inner liner body, and the return air outlet is formed below the duct cover and adjacent to the inner liner body; a fan assembly is provided in the duct near the air outlet. The fan assembly includes a fan body and a fan mounting plate. The upper end of the fan mounting plate is connected to the inner liner, and the lower end of the fan mounting plate is connected to the duct cover plate through the duct insulation layer. A mounting cavity is formed between the fan mounting plate and the fan cover plate, and the fan body is installed in the mounting cavity; The mounting cavity is connected to the air outlet; The fan mounting plate has a through hole, and the mounting cavity is connected to the air duct through the through hole.

7. The freezer according to claim 6, characterized in that, The inner liner has a protrusion that protrudes towards the box body at the location adjacent to the through hole, and a flow passage is formed between the protrusion and the fan mounting plate; The gas can flow upward from the evaporator, through the flow passage, the through hole, and the air outlet, and then flow back into the inner liner body.

8. The freezer according to claim 7, characterized in that, The inner liner also includes a drainage section, one end of which is connected to the air duct. The drainage section is provided to penetrate the insulation layer in a vertical direction; The drainage section is located below the connection between the vertical extension section and the horizontal extension section; The vertical extension extends from below the fan to above the drain section; The horizontal extension extends from above the drainage section to one side of the return air inlet.

9. The freezer according to claim 8, characterized in that, The air duct is provided with a drain outlet, and an inclined portion is formed around the drain outlet on the air duct; The height of the inclined portion is higher than that of the drain outlet; The inclined portion is connected to the drainage portion through the drainage outlet.

10. A freezer, characterized in that... ,include: Box; An inner liner is disposed within the box, and the inner liner includes an inner liner body; A compressor is disposed between the housing and the inner liner body, and the compressor is disposed at the bottom of the housing; An evaporator is provided extending along the inner tank body; The inner liner body has a bent profile portion located above the compressor, and the evaporator includes a portion extending along the bent profile portion.

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