A kind of refrigerator
Technical Field
The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator.
Background
The refrigeration principle of the air-cooled refrigerator is that an evaporator arranged in an air duct is used for directly cooling air flowing through the evaporator, so that the temperature of the air in the air duct is reduced, and cold air is formed. The aim of controlling the temperature in the refrigerating chamber/the functional chamber/the freezing chamber is achieved by controlling the wind speed and the wind quantity of cold wind entering the refrigerating chamber/the functional chamber/the freezing chamber, so that refrigeration is realized.
For refrigerators having more than one compartment, more than one blower is typically provided to achieve different directions of blowing. However, the design of the refrigerator air duct is affected when the number of the fans is large, the energy consumption of the refrigerator is increased, and the noise of the refrigerator is increased during operation.
Thus, improvements in the prior art are needed.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the utility model provides a refrigerator to can influence refrigerator wind channel design when solving the fan quantity that prior art set up in the forced air cooling refrigerator when more, increase the refrigerator energy consumption, and increase the technical problem of refrigerator noise when moving.
In order to achieve the above object, the present invention provides a refrigerator including:
the refrigerator comprises a box body, a first refrigerating chamber, a second refrigerating chamber and an air duct communicated with the first refrigerating chamber and the second refrigerating chamber, wherein the box body is internally limited with the first refrigerating chamber and the second refrigerating chamber;
the evaporator is arranged in the air duct;
the air conditioner also comprises a fan device arranged in the air duct;
the fan device comprises a driving mechanism, a base and fan blades;
the base is arranged in the air duct, the fan blades are rotatably arranged on the base, and the driving mechanism is used for driving the fan blades to rotate;
the fan blade comprises a central ring, a first blade and a second blade;
the first blades are arranged on the periphery of the central ring in a circumferential array mode, the second blades are arranged on the periphery of the first blades in a circumferential array mode, when the fan blades rotate, wind enters the first blades and the second blades along the axial direction of the central ring, the air outlet direction of the first blades is the axial direction of the central ring, and a preset included angle is formed between the air outlet direction of the second blades and the axial direction of the central ring.
In some embodiments of the present application, the predetermined included angle is 90 °.
In some embodiments of the present application, the fan blade further includes an isolation ring;
one end of the first blade is connected with the outer wall of the central ring, and the other end of the first blade is connected with the inner wall of the isolation ring;
one end of the second blade is connected with the outer wall of the isolation ring.
In some embodiments of the present application, the cage comprises a first ring plate and a second ring plate;
the first ring plate is vertically arranged at the inner edge of the second ring plate, and the first ring plate and the central ring are coaxially arranged;
one end of the second blade is connected with the outer wall of the first ring plate, and the bottom of the second blade is arranged on the second ring plate.
In some embodiments of the present application, at least one circle of wind holes arranged in a circumferential array is formed on the second circle of plate.
In some embodiments of the present application, the fan blade further includes an outer ring, the outer ring and the central ring are coaxially disposed, and the other end of the second blade is connected to the inner wall of the outer ring.
In some embodiments of the present application, a first included angle is formed between the top end and the bottom end of the side of the first blade connected to the first ring plate, a second included angle is formed between the second blade and the outer wall of the first ring plate, and a ratio of the first included angle to the second included angle is between 0.45 and 0.65.
In some embodiments of the present application, the second blade forms a third included angle with the surface of the second ring plate, and the third included angle is between 60 ° and 90 °.
In some embodiments of the present application, the third included angle is 70 °.
In some embodiments of the present application, a shock pad is disposed at the installation position of the base.
Compared with the prior art, the refrigerator provided by the embodiment of the utility model has the beneficial effects that:
according to the refrigerator provided by the embodiment of the utility model, the fan device capable of discharging air from the axial direction and the lateral direction simultaneously is arranged in the air duct, so that the problem that multiple chambers need multiple fans is solved, the reduction of the fan device can help to reduce working and installation working hours, reduce cost and reduce energy consumption and noise, and the refrigerator can be suitable for air duct structures which cannot be designed with double fans or multiple fans, so that the applicability is effectively enhanced, and the product competitiveness is increased.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a blower fan device of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic axial side structure of a fan blade;
FIG. 3 is a schematic view of a front view structure of a fan blade;
FIG. 4 is a schematic view of a rear view structure of a fan blade;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a front axial side structural schematic view of a fan blade with an outer ring removed;
FIG. 7 is a schematic view of a rear view axial side structure of a fan blade with the outer ring removed;
FIG. 8 is a schematic view of a front view of a fan blade with the outer ring removed;
FIG. 9 is a cross-sectional view of a second vane and cage;
in the figure, 100, base; 200. a fan blade; 210. a first blade; 220. a second blade; 230. a central ring; 240. an isolation ring; 241. a first ring plate; 242. a second ring plate; 243. a wind hole; 250. an outer ring; 300. a shock-absorbing pad.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The refrigerator of the preferred embodiment of the utility model mainly comprises a refrigerator body, an evaporator and a fan device.
Specifically, a first refrigeration chamber and a second refrigeration chamber are limited in the box body, and an air duct communicated with the first refrigeration chamber and the second refrigeration chamber. Wherein the first and second refrigeration chambers may be a refrigerator compartment and a freezer compartment, respectively. In some embodiments, the refrigerator may also be provided with a third refrigeration chamber, i.e. a temperature changing chamber.
The evaporator is arranged in the air duct. The evaporator is a part of a refrigeration cycle system of the refrigerator, the refrigeration cycle system mainly comprises a compressor, a condenser, a condensing fan, a drying filter, a capillary tube and an evaporator which are communicated through a refrigerant tube, and the connection of components and the working principle of the refrigeration cycle system are common knowledge and are not repeated in the application. When the refrigerant passes through the evaporator, it absorbs heat, thereby cooling the air blown through the evaporator to form cold air. The fan device is arranged in the air duct and used for blowing cold air into the refrigeration cavity to realize refrigeration cycle.
Referring to fig. 1, the fan apparatus includes a driving mechanism (not shown), a base 100, and fan blades 200. The base 100 is arranged in the air duct, the fan blade 200 is rotatably arranged on the base 100, and the driving mechanism is used for driving the fan blade 200 to rotate. In some embodiments, the base 100 is installed with the duct wall/duct plate, and preferably, the base 100 is installed with a shock absorbing pad 300 to reduce vibration and noise during operation of the fan device. The drive mechanism is typically a rotating electric machine.
Referring to fig. 2-9, the fan blade 200 includes a first blade 210, a second blade 220, a center ring 230, a spacer ring 240, and an outer ring 250.
The first blades 210 are disposed on the outer periphery of the center ring 230 in a circumferential array, and the second blades 220 are disposed on the outer periphery of the first blades 210 in a circumferential array.
Referring to fig. 5, by adjusting the shapes, the numbers and the arrangement angles of the first blade 210 and the second blade 220, when the fan blade 200 rotates, the wind enters the first blade 210 and the second blade 220 (shown by a large left arrow in fig. 5) along the axial direction of the central ring 230, the wind outlet direction of the first blade 210 is the axial direction of the central ring 230 (shown by a small right solid arrow in fig. 5 and fig. 7), and the wind outlet direction of the second blade 220 and the axial direction of the central ring 230 form a predetermined included angle, which is preferably 90 °, so that the axial wind inlet and the lateral wind outlet at the second blade 220 can be realized (shown by a small right dotted arrow in fig. 5 and fig. 6).
Referring to fig. 2-9, in some embodiments, first vanes 210 are connected at one end to an outer wall of center ring 230 and at another end to an inner wall of spacer ring 240. One end of the second vane 220 is connected to the outer wall of the isolation ring 240, and the bottom thereof may be disposed on the isolation ring 240.
Referring to fig. 2-9, in some embodiments, the other end of the second vane 220 is coupled to an inner wall of an outer ring 250 that is coaxially disposed with the central ring 230.
Referring to fig. 2-9, in some embodiments, the cage 240 includes a first ring plate 241 and a second ring plate 242, the first ring plate 241 being disposed perpendicularly at an inner edge of the second ring plate 242, the first ring plate 241 being disposed coaxially with the central ring 230. One end of the second vane 220 is connected to the outer wall of the first ring plate 241, and the bottom thereof is disposed on the second ring plate 242. The second ring plate 242 is provided with at least one ring of air holes 243 arranged in a circumferential array, and two rings of air holes 243 are provided in the embodiment shown in the figure.
Referring to fig. 8, in some embodiments, a first included angle a is formed between the top end and the bottom end of the first blade 210 connected to the first ring plate 241, a second included angle b is formed between the second blade 220 and the outer wall of the first ring plate 241, and a ratio of the first included angle a to the second included angle b is between 0.45 and 0.65. The ratio of the first included angle a to the second included angle b mainly affects the air volume distribution of the first blade 210 direct blowing and the second blade 220 side blowing. When the ratio of the first included angle a to the second included angle b is close to 0.5, the efficiency and the performance can be considered simultaneously, and the refrigerator can reach the required temperature more efficiently.
Referring to FIG. 9, in some embodiments, the second blade 220 forms a third included angle c with the surface of the second ring plate 242. The value of the third included angle c is influenced by the height of the second vane 220, the diameter of the first ring plate 241 and the diameter of the outer ring 250, and preferably, the third included angle c is between 60 degrees and 90 degrees, most preferably 70 degrees, which is beneficial to both efficiency and manufacturing.
In summary, the refrigerator provided by the utility model is provided with the fan device capable of blowing air from the axial direction and the lateral direction simultaneously in the air duct, so that the problem that multiple chambers need multiple fans is solved, the reduction of the fan device can help to reduce working and installation working hours, reduce cost, reduce energy consumption and noise, and can be suitable for air duct structures which cannot be designed with double fans or multiple fans, thereby effectively enhancing applicability and increasing product competitiveness.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.