Refrigerator

Abstract

The utility model provides a refrigerator, which comprises a refrigeration space, a refrigerator door and a refrigerator door, and is characterized in that the refrigeration space is enclosed by an inner container of the refrigerator; the air duct cover plate is arranged at the rear part of the inner container; the upper-layer partition plate and a bottom plate of the inner container are used for separating a temperature changing space from the refrigeration space; the variable-temperature drawer is arranged in the variable-temperature space in a drawable manner; the fan shell is arranged on the rear side of the variable-temperature drawer; the air outlet face of the axial fan is obliquely placed in the fan shell upwards, and the axial direction of the axial fan inclines towards the front side of the refrigerator relative to the air duct cover plate at a first angle; the fan cover plate covers the front side of the axial flow fan and is provided with an opening part which is opened upwards at a second angle inclined towards the front side of the refrigerator relative to the air duct cover plate, a heating wire is arranged on a bottom plate of the inner container, and the axial flow fan sucks air in the temperature changing drawer from the bottom, and the air passes through the opening part of the fan cover plate and is heated by the heating wire. And the air is upwards blown out, drained into the upper-layer partition plate and returned into the temperature changing drawer.

Description

TECHNICAL FIELD

[0001] The utility model relates to a refrigerator. In particular, it relates to a refrigerator comprising a temperature-adjustable temperature-variable drawer. BACKGROUND

[0002] With the development of the times, users pursue the multifunctionality of refrigerators, such as desiring to have functions such as maturation and thawing directly in the refrigerator. Therefore, refrigerators comprising temperature-adjustable temperature-variable drawers are being developed, and the requirements for the rapidity of temperature adjustment and the uniformity of the temperature inside the temperature-variable drawer are also increasing.

[0003] In the past, in the refrigerator described in Patent Document 1, as shown in Figure 1 , the bottom of the temperature-variable drawer and the bottom wall of the inner tank jointly define a bottom return air duct that communicates the temperature-variable storage compartment and the lower return air duct, and a fan accommodating cavity that accommodates a centrifugal fan and is in communication with the storage compartment is provided on the upper air duct assembly of the refrigerator. The centrifugal fan can make air pass through the fan accommodating cavity, the main air supply duct, the storage compartment, the rear return air duct, the lower return air duct, and the evaporator located therein in sequence and then return to the fan accommodating cavity, on the one hand; and make air pass through the fan accommodating cavity, the top air supply duct, the bottom return air duct, the lower return air duct, and the evaporator located therein in sequence and then return to the fan accommodating cavity, on the other hand.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT DOCUMENTS

[0006] Patent Document 1: Chinese Patent Publication No. 113531987A SUMMARY

[0007] TECHNICAL PROBLEMS TO BE SOLVED BY THE UTILITY MODEL

[0008] Since the fan used in the refrigerator described in the above Patent Document 1 is a centrifugal fan, and the centrifugal fan is vertically installed on the rear wall of the inner tank, there is a problem of low air suction volume and low utilization rate. Moreover, as shown in Figure 1 , there is a flow dead zone A below the fan, which causes part of the air not to circulate. In addition, there are problems such as multiple components, complex structure, difficult installation, and the need to replace the entire fan assembly when the fan is damaged in the fan assembly.

[0009] On the other hand, the refrigerator described in Patent Document 1 does not take into account the requirement that the temperature-variable drawer needs to be quickly heated according to the user's settings.

[0010] The utility model is completed based on the above problems, and the purpose is to provide a refrigerator with a simple structure and capable of achieving rapid temperature adjustment.

[0011] TECHNICAL MEANS FOR SOLVING THE TECHNICAL PROBLEMS

[0012] The utility model discloses a refrigerator, it includes: refrigeration space is surrounded by the inner container of refrigerator;Air duct cover plate is set up in the rear of inner container;Upper layer baffle is separated with the bottom plate of inner container from refrigeration space and divides out temperature change space;Temperature change drawer is set up in temperature change space in the way of being able to pull out;Fan shell is set up in the rear of temperature change drawer;Axial flow fan is placed in fan shell with the air outlet surface upwardly inclined, and its axial direction is inclined to the front side of refrigerator with the first angle relative to air duct cover plate;Fan cover plate covers the front side of axial flow fan, and has the opening portion that is opened upwardly with the second angle relative to air duct cover plate and is inclined to the front side of refrigerator, and heating wire is arranged on the bottom plate of inner container, and axial flow fan inhales the gas in temperature change drawer from the bottom, and the gas that is guided to upper layer baffle and returns to temperature change drawer is blown upwardly through the opening portion of fan cover plate.

[0013] Through such constitution, since the utility model adopts axial flow fan, has the advantages such as large air intake, low noise, cheap price etc. Moreover, axial flow fan can drive the air circulation of the space below fan, effectively improves the flow degree of air, makes the air path smooth, reduces flow dead zone, plays the effect of energy saving. And, since the fan assembly structure of the utility model is simple, therefore convenient to dismount, allows replacement fan. Further, since the utility model is provided with heating wire on the bottom plate of inner container, therefore when user wishes temperature change drawer to need according to the setting of user and quickly heats up, heating wire and axial flow fan jointly operate, axial flow fan inhales the heated gas in temperature change drawer from the bottom, and the gas that is guided to upper layer baffle and returns to temperature change drawer is blown upwardly through the opening portion of fan cover plate. Therefore, the refrigerator according to the utility model has simple structure and can realize quick heating.

[0014] In the refrigerator according to the utility model, optionally, the first angle is above 15° and below 75°, and the second angle is above 15° and below 75°. By inclining the axial flow fan in the fan shell, the air intake of the axial flow fan becomes larger, and the flow dead zone on the air duct structure is reduced. Moreover, by inclining the opening portion upwardly, the air supply can be effectively performed, and the energy utilization rate is improved. In addition, the first angle and the second angle can be set according to different requirements, so as to adjust the air intake / supply. When the first angle and the second angle are the same, that is, the axial direction of the axial flow fan is the same as the direction of the opening portion, the air intake / supply is the largest, the circulation of the air path can be improved to the maximum, and quick heating is realized.

[0015] In the refrigerator according to the utility model, optionally, the width of the upper side of the air duct in the fan cover plate is greater than the width of the lower side of the air duct in the fan cover plate. Thus, by increasing the opening degree of the opening portion, the heated gas can be introduced into the upper layer baffle more, so as to more effectively perform the air supply, improve the energy utilization rate, and realize quick heating.

[0016] In the refrigerator according to the utility model, optionally, the fan shell and the air duct cover plate are integrally formed. Therefore, the fan assembly has the advantages of less component quantity, stable structure, simple installation, etc., and thus the refrigerator according to the utility model has a simple structure and can realize rapid heating.

[0017] In the refrigerator according to the utility model, optionally, a flow guide plate member is arranged on the upper layer partition plate, air inlets are arranged on the flow guide plate member, the flow guide plate member has a cutout with an accommodating opening portion on the rear side, and the gas is introduced into the temperature-variable drawer from the opening portion through the air inlets of the flow guide plate member. Through the flow guide plate member, the gas introduced into the upper layer partition plate from the opening portion can be effectively guided, and through the multiple air inlets distributed on the flow guide plate member, the gas is uniformly introduced into the temperature-variable drawer, thereby improving the uniformity of the temperature inside the temperature-variable drawer.

[0018] In the refrigerator according to the utility model, optionally, the width of the front side of the air duct in the flow guide plate member is greater than the width of the rear side of the air duct in the flow guide plate member. Thus, the air supply area can be increased, and since the width of the front side of the air duct in the flow guide plate member is greater than the width of the rear side of the air duct in the flow guide plate member, a 90° flow dead zone is avoided on the front side of the air duct in the flow guide plate member. Therefore, the air supply can be effectively performed, and the utilization rate of energy can be improved.

[0019] In the refrigerator according to the utility model, optionally, a notch portion is arranged on the rear part of the temperature-variable drawer for the return air to flow out, and a return air inlet is arranged on the lower part of the fan shell. Thus, by returning the gas inside the temperature-variable drawer and the bottom heated gas to the suction area of the axial flow fan to form a return air flow path, the circulation of the air flow path can be improved, and rapid heating can be realized.

[0020] In the refrigerator according to the utility model, optionally, a sealing structure is arranged on the front side of the temperature-variable drawer, and the sealing structure seals the temperature-variable drawer at least between the front side of the temperature-variable drawer and the upper layer partition plate. Thus, an independent air flow circulation is formed in the temperature-variable drawer, and the utilization rate of energy can be improved.

[0021] In the refrigerator according to the utility model, optionally, it further comprises a temperature control portion, which detects the temperature in the temperature-variable drawer as a detected temperature, and when the set temperature is greater than the detected temperature, the heating wire is heated and the axial flow fan is started, and when the set temperature is less than the detected temperature, the heating of the heating wire is stopped, and the axial flow fan continues to work until the detected temperature is equal to the set temperature. Thus, the temperature-variable drawer of the refrigerator can be rapidly heated according to the setting of the user.

[0022] In the refrigerator according to the present application, the cold air outlet is provided on the air duct cover plate, and the cold air is sent into the temperature-variable drawer.

[0023] Effects of the present application

[0024] Therefore, the refrigerator according to the present application can have a simple structure and can achieve rapid temperature adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0026] Figure 1 is a sectional view showing an air path of a refrigerator in the related art.

[0027] Figure 2 is a perspective view showing the overall structure of the refrigerator 1 according to the present application.

[0028] Figure 3 is an exploded perspective view showing the temperature-variable drawer 3 of the refrigerator 1 according to the present application, viewed from the rear obliquely.

[0029] Figure 4 is a perspective view showing the temperature-variable drawer 3 of the refrigerator 1 according to the present application, viewed from the front obliquely.

[0030] Figure 5A is an exploded perspective view showing the fan assembly 100 of the refrigerator 1 according to the present application, viewed from the front obliquely.

[0031] Figure 5B is a sectional view showing the fan assembly 100 of the refrigerator 1 according to the present application, viewed from the side.

[0032] Figure 6 is a perspective view showing the upper partition 4 of the refrigerator 1 according to the present application.

[0033] Figure 7 is a perspective view showing the fan cover plate 50 of the refrigerator 1 according to the present application.

[0034] Figure 8 is a perspective view showing the axial flow fan 30 of the refrigerator 1 according to the present application.

[0035] Figure 9 is a perspective view showing the air duct cover plate 10 and the fan housing 20 of the refrigerator 1 according to the present application.

[0036] Figure 10is a schematic view showing a mounting method of a fan assembly 100 of the refrigerator 1 according to the present utility model.

[0037] Figure 11 is a schematic sectional view showing a wind path of the refrigerator 1 according to the present utility model, viewed from a side.

[0038] Figure 12 is a flow chart showing a temperature adjustment process of the refrigerator 1 according to the present utility model.

[0039] It should be understood that the drawings are not necessarily to scale and that the slight simplifications that have been presented are for the purpose of visualizing the basic principles of the present utility model. Specific design features of the present utility model contained herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular design application and use environment.

[0040] In the drawings, reference numerals refer throughout the several views in the drawings and refer to the same or equivalent parts.

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] 1… refrigerator; 2… inner container; 2h… heating wire; 3… temperature-variable drawer; 3d… drawer door; 3s… sealing structure; 3h… notch part; 4… upper partition; 10… air duct cover plate; 11… cold air outlet; 20… fan housing; 20b… air return; 30… axial flow fan; 31… fan connecting piece; 40… flow guide plate member; 40a… air outlet; 41… cutout; 50… fan cover plate; 51… opening part; 100… fan assembly; R1… first angle; R2… second angle; TC… temperature control part. DETAILED DESCRIPTION

[0043] The refrigerator according to the present utility model will be explained in detail below with reference to the accompanying drawings. In addition, in the explanation of the drawings, the same reference numerals are attached to the same or equivalent parts, and repeated explanation is omitted.

[0044] In the present specification, it should be understood that the terms "include", "comprise", "have", and the like, mean that there are the mentioned features, numbers, steps, operations, elements, parts, or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, parts, or combinations thereof.

[0045] In the drawings, for the convenience of understanding, the direction when the refrigerator is upright is set as the up-down direction, the direction of the refrigerator close to the door body is set as the front side, and the direction of the refrigerator close to the back wall is set as the back side.

[0046] Figure 2 is a perspective view showing the overall structure of the refrigerator 1 according to the present utility model. Figure 3 is an exploded perspective view showing the temperature-variable drawer 3 of the refrigerator 1 according to the present utility model, viewed from the oblique back side.Figure 4 is a perspective view showing the temperature-variable drawer 3 of the refrigerator 1 according to the present application as viewed obliquely from the front. In order to facilitate the illustration of the internal structure of the refrigerator 1, the outer shell and the door body of the refrigerator 1 are omitted in the illustration. Figure 5A is an exploded perspective view showing the fan assembly 100 of the refrigerator 1 according to the present application as viewed obliquely from the front. Figure 5B is a sectional view showing the fan assembly 100 of the refrigerator 1 according to the present application as viewed from the side.

[0047] The refrigerator 1 comprises a refrigerating space enclosed by the inner container 2 of the refrigerator 1. The upper partition plate 4 together with the bottom plate of the inner container 2 separates a temperature-variable space from the refrigerating space. The temperature-variable drawer 3 is arranged in the temperature-variable space in a pullable manner. The temperature-variable drawer 3 has a drawer door 3d at the front side.

[0048] The fan assembly 100 of the refrigerator 1 comprises a duct cover plate 10, a fan shell 20, an axial flow fan 30, and a fan cover plate 50. The duct cover plate 10 is arranged at the rear of the inner container 2. The fan shell 20 is arranged at the rear side of the temperature-variable drawer 3 and has a space for accommodating the axial flow fan 30. The axial flow fan 30 is fixed to the fan assembly 100 through a fan connecting piece 31. In the space divided by the fan cover plate 50 and the fan shell 20, the upper region of the axial flow fan 30 is a blowing region, and the lower region of the axial flow fan 30 is a suction region. The axial flow fan 30 is placed in the fan shell 20 with its air outlet surface upwardly inclined, and its axial direction is inclined to the front side of the refrigerator 1 at a first angle R1 with respect to the duct cover plate 10. The first angle R1 is greater than 0° and less than 90°, and preferably greater than 15° and less than 75°, i.e., the axial flow fan 30 is preferably arranged in the fan shell 20 in an inclined manner, so that the suction volume of the axial flow fan 30 can be increased, and the flow dead zone in the duct structure is reduced. The fan cover plate 50 covers the front side of the axial flow fan 30 and has an opening part 51 that is upwardly open at a second angle R2 with respect to the duct cover plate 10 to the front side of the refrigerator 1. The second angle R2 is greater than 0° and less than 90°, and preferably greater than 15° and less than 75°, i.e., the opening part 51 is preferably upwardly open in an inclined manner, so that the blowing can be effectively performed, and the energy utilization rate is improved. In addition, the first angle R1 and the second angle R2 can be set according to different requirements, so as to adjust the suction volume / blowing volume. The included angle of the first angle R1 with respect to the second angle R2 is greater than 0° and less than 75°. For example, when the first angle R1 is the same as the second angle R2, i.e., the axial direction of the axial flow fan 30 is the same as the direction of the opening part 51, the included angle of the first angle R1 with respect to the second angle R2 is 0°, at this time, the suction volume / blowing volume is the largest, and the circulation of the air path can be improved to the maximum extent. In addition, the width of the upper side of the air duct in the fan cover plate 50 is greater than the width of the lower side of the air duct in the fan cover plate 50. Thus, by increasing the opening degree of the opening part 51, the gas blown out by the axial flow fan 30 can be introduced more into the upper layer partition plate 4, so that the blowing can be more effectively performed, and the energy utilization rate is improved.

[0049] The fan shell 20 can be integrally formed with the duct cover plate 10. Thus, the fan assembly 100 of the refrigerator 1 according to the present application has the advantages of fewer components, stable structure, and simple installation.

[0050] Figure 6 is a perspective view showing the upper layer partition plate 4 of the refrigerator 1 according to the present application.

[0051] A guide vane member 40 is arranged on the upper shelf 4, and an air supply port 40a is arranged on the guide vane member 40. A cutout 41 having an accommodating opening 51 is arranged on the rear side of the guide vane member 40, and the gas is introduced into the temperature-variable drawer 3 from the opening 51 through the air supply port 40a of the guide vane member 40. Through the guide vane member 40, the gas introduced into the upper shelf 4 from the opening 51 can be effectively guided, and through the plurality of air supply ports 40a distributed on the guide vane member 40, the gas is uniformly introduced into the temperature-variable drawer 3, thereby improving the uniformity of the temperature inside the temperature-variable drawer 3.

[0052] In addition, the width of the front side of the air duct in the guide vane member 40 is greater than the width of the rear side of the air duct in the guide vane member 40. In this way, the air supply area can be increased. Moreover, since the width of the front side of the air duct in the guide vane member 40 is greater than the width of the rear side of the air duct in the guide vane member 40, a flow dead zone of 90° is avoided on the front side of the air duct in the guide vane member 40. Therefore, the air supply can be effectively performed, and the utilization rate of energy can be improved.

[0053] Figure 7 Fig. 1 is a perspective view showing a refrigerator 1 according to the present application. Figure 8 Fig. 2 is a perspective view showing an axial flow fan 30 of the refrigerator 1 according to the present application. Figure 9 Fig. 3 is a perspective view showing an air duct cover 10 and a fan shell 20 of the refrigerator 1 according to the present application. Figure 10 Fig. 4 is a schematic view showing a mounting mode of a fan assembly 100 of the refrigerator 1 according to the present application.

[0054] The installation of the fan assembly 100 is completed by obliquely placing the axial flow fan 30 into the fan shell 20, and then covering the front side of the axial flow fan 30 with the fan cover 50. The fan cover 50 can be connected to the fan shell 20 through, for example, the rivet holes or buckles shown in the figure.

[0055] Figure 11 Fig. 5 is a schematic sectional view showing the air path of the refrigerator 1 according to the present application from the side. In Figure 11 Fig. 5, the flow direction of the air path is indicated by arrows.

[0056] A heating wire 2h is arranged on the bottom plate of the inner container 2, the axial flow fan 30 sucks the gas in the temperature-variable drawer 3 from the bottom, and blows the gas back into the temperature-variable drawer 3 upward through the opening 51 of the fan cover 50.

[0057] A notch part 3h is arranged at the rear of the temperature-variable drawer 3 for the return air to flow out, and a return air outlet 20b is arranged at the lower part of the fan shell 20. The return air outlet 20b is located at the lower side of the fan cover plate 50. In this way, by returning the air in the temperature-variable drawer 3 and the air heated at the bottom to the suction area of the axial flow fan 30, a return air flow path is formed, the circulation of the air flow path is improved, and fast heating is achieved.

[0058] A sealing structure 3s can be arranged at the front side of the temperature-variable drawer 3, which seals the temperature-variable drawer 3 at least between the drawer door 3d and the upper layer partition 4 at the front side of the temperature-variable drawer 3. In this way, an independent air flow path circulation is formed in the temperature-variable drawer 3, and the utilization rate of energy is improved.

[0059] Figure 12 is a flow chart showing the temperature adjustment process of the refrigerator 1 according to the present application.

[0060] A temperature control part TC (not shown) can be arranged in the temperature-variable drawer 3. The temperature control part TC detects the temperature in the temperature-variable drawer 3 as a detected temperature, and when the set temperature of the user is greater than the detected temperature, the heating wire 2h is heated and the axial flow fan 30 is started; when the set temperature of the user is less than the detected temperature, the heating of the heating wire 2h is stopped, and the axial flow fan 30 continues to work until the detected temperature is equal to the set temperature. In this way, the temperature-variable drawer 3 of the refrigerator 1 can be quickly heated according to the user's setting.

[0061] In addition, a cold air outlet 11 is arranged on the air duct cover plate 10 for sending cold air into the temperature-variable drawer 3. In this way, without heating the heating wire 2h, the cold air is sent into the temperature-variable drawer 3 through the air outlet 40a of the flow guide plate member 40, the temperature-variable drawer 3 is cooled, and the air flow path circulation is achieved by the operation of the axial flow fan 30, so that the temperature-variable drawer 3 of the refrigerator 1 is quickly cooled.

[0062] Through such a structure, since the axial flow fan 30 is adopted in the present application, it has the advantages of large air suction volume, low noise, low price and the like. Moreover, the axial flow fan 30 can drive the air circulation in the space below the fan, effectively improve the air flow, make the air flow smooth, reduce the flow dead zone, and achieve the effect of energy saving. Furthermore, since the fan assembly 100 of the present application has a simple structure, it is convenient to disassemble and assemble, and the fan can be replaced. Further, since the heating wire 2h is arranged on the bottom plate of the inner container 2 in the present application, when the user wants the temperature-variable drawer 3 to be quickly heated according to the user's setting, the heating wire 2h and the axial flow fan 30 operate together, the axial flow fan 30 sucks the heated air in the temperature-variable drawer 3 from the bottom, and the air is blown upward through the opening part 51 of the fan cover plate 50 and returned to the temperature-variable drawer 3. In this way, the refrigerator 1 according to the present application has a simple structure and can achieve fast temperature adjustment.

[0063] Although the utility model has been specifically described above in combination with the drawings and embodiments, it can be understood that the above description does not limit the utility model in any form. The person skilled in the art can deform and change the utility model according to the needs without deviating from the essential spirit and scope of the utility model, and these deformations and changes all fall within the scope of the utility model.

Claims

1.A refrigerator, wherein, comprises: a refrigerating space surrounded by an inner tub of the refrigerator; an air duct cover plate provided at a rear portion of the inner tub; an upper partition plate which, together with a bottom plate of the inner tub, divides a temperature-variable space from the refrigerating space; a temperature-variable drawer provided in the temperature-variable space in a pullable manner; a fan case provided at a rear side of the temperature-variable drawer; a shaft flow fan whose air outlet side is placed in the fan case with an upwardly inclined orientation, and whose shaft is inclined at a first angle with respect to the air duct cover plate toward a front side of the refrigerator; a fan cover plate which covers a front side of the shaft flow fan and has an opening portion which is open upwardly at a second angle with respect to the air duct cover plate toward the front side of the refrigerator, a heating wire is provided on the bottom plate of the inner tub, the shaft flow fan sucks air in the temperature-variable drawer from a bottom portion, blows the air upwardly via the opening portion of the fan cover plate, and discharges the air into the upper partition plate and back into the temperature-variable drawer. 2.The refrigerator according to claim 1, wherein, the first angle is 15° or more and 75° or less, the second angle is 15° or more and 75° or less. 3.The refrigerator according to claim 1 or 2, wherein, a width of an upper side of an air duct in the fan cover plate is greater than a width of a lower side of the air duct in the fan cover plate. 4.The refrigerator according to claim 1 or 2, wherein, the fan case is integrally formed with the air duct cover plate. 5.The refrigerator according to claim 1 or 2, wherein, a flow guide plate member is provided at the upper partition plate, an air supply port is provided at the flow guide plate member, a cutout portion which accommodates the opening portion is provided at a rear side of the flow guide plate member, the air is introduced into the temperature-variable drawer from the opening portion via the air supply port of the flow guide plate member. 6.The refrigerator according to claim 5, wherein, a width of a front side of an air duct in the flow guide plate member is greater than a width of a rear side of the air duct in the flow guide plate member. 7.The refrigerator according to claim 1 or 2, wherein, a notch portion is provided at a rear portion of the temperature-variable drawer for air return to flow out, an air return port is provided at a lower portion of the fan case. 8.The refrigerator according to claim 1 or 2, wherein, a sealing structure is provided at a front side of the temperature-variable drawer, the sealing structure seals the temperature-variable drawer at least between the front side of the temperature-variable drawer and the upper partition plate. 9.The refrigerator according to claim 1 or 2, wherein, further comprising: a temperature control portion which detects a temperature in the temperature-variable drawer as a detected temperature, causes the heating wire to heat and the shaft flow fan to start when a set temperature is greater than the detected temperature, stops the heating of the heating wire when the set temperature is less than the detected temperature, and the shaft flow fan continues to operate until the detected temperature is equal to the set temperature. 10.The refrigerator according to claim 1 or 2, wherein, a cold air supply port is provided at the air duct cover plate for supplying cold air into the temperature-variable drawer.

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