Instant freezing chamber structure and refrigerator

Abstract

The utility model provides an instant freezing chamber structure and a refrigerator, an instant freezing chamber comprises a plurality of heat conducting plates and an instant freezing evaporator, an instant freezing area is defined by the heat conducting plates, the instant freezing evaporator is arranged between the outer wall faces of the heat conducting plates and a heat preservation layer of the refrigerator, and the instant freezing evaporator is connected with an evaporator of a refrigerating system of the refrigerator in parallel. According to the utility model, the upper and lower surrounding roll-bond evaporators are additionally arranged on the outer wall of the instant freezing area of the refrigerator to replace the original branch air duct to refrigerate, so that the instant freezing effect with accurate temperature control and better effect is realized, and the cold capacity can be provided by starting the upper roll-bond evaporator under the condition that the cold capacity of the refrigerating chamber is insufficient. And an electronic switching valve is additionally arranged, and a temperature sensor is arranged on a metal heat conducting plate on the inner wall of the instant freezing area, so that the instant freezing function and other functions can be independently controlled and adjusted through a control module of the refrigerator.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of refrigerator, concretely is a kind of moment freezing chamber structure and refrigerator. BACKGROUND

[0002] With the development of prior art, the structure of refrigerator is constantly evolving, especially in the design of air-cooled refrigerator, it is no longer limited to traditional refrigeration and freezing functions. Today's air-cooled refrigerator gradually changes into a multifunctional, high-performance home appliance product by integrating multiple functions such as preservation, instant freezing, sterilization, etc. While having multiple functions, the existing air-cooled refrigerator still generally uses a single evaporator for refrigeration. This traditional design provides the required cooling capacity to the instant freezing function area by adding branch air ducts to the main air duct.

[0003] The preservation function is achieved by controlling the temperature in the chamber through sensor-controlled electric air door opening and closing in the following stages: supercooling environment preparation, supercooling import, supercooling maintenance, supercooling removal, and -5℃ maintenance operation.

[0004] Although the existing design achieves the integration of multiple functions to some extent, in actual application, the effect of the instant freezing function often fails to meet expectations. At the same time, due to the limited refrigeration capacity of the single evaporator, the efficiency of the air-cooled system under multiple function requirements is not maximized, and there is a certain waste of energy. Moreover, this method not only fails to meet the high demand for refrigeration capacity in the instant freezing function area, but also causes the overall energy consumption to rise due to the increased system burden, thereby increasing the power consumption of the refrigerator. In addition, there are disadvantages such as uneven temperature distribution in the chamber and fluctuation of air door air volume, resulting in low success rate of instant freezing and poor preservation effect. SUMMARY

[0005] The utility model discloses a kind of moment freezing chamber structure and refrigerator to solve the technical problem that the instant freezing effect is not good in the prior art by air duct conveying cold air.

[0006] The technical scheme adopted by the utility model is:

[0007] The utility model discloses a kind of moment freezing chamber structure, comprising: multiple guide temperature plates that form instant freezing area, instant freezing evaporator is arranged between the outer wall surface of the guide temperature plate and the refrigerator insulation layer, and the instant freezing evaporator is connected in parallel with the evaporator of refrigerator refrigeration system.

[0008] Further, the outer wall surface of the multiple guide temperature plates of the instant freezing chamber is provided with the instant freezing evaporator.

[0009] Further, the instant freezing evaporator is arranged in a serpentine shape on the outer wall surface of each guide temperature plate of the instant freezing chamber.

[0010] Further, the instant freezing evaporator comprises a plurality of sub-instant freezing evaporators arranged in parallel, and each of the sub-instant freezing evaporators is provided with a valve for switching.

[0011] The sub-instant freezing evaporators are respectively an upper instant freezing evaporator arranged on the upper half of the upper wall and the left and right walls of the instant freezing chamber, and a lower instant freezing evaporator arranged on the lower half of the lower wall and the left and right walls of the instant freezing chamber, and the upper instant freezing evaporator, the lower instant freezing evaporator and the refrigerator evaporator are arranged in parallel.

[0012] Further, the instant freezing evaporator is a blow-type evaporator.

[0013] Further, the temperature guide plate is a metal temperature guide plate.

[0014] Further, the temperature guide plate is provided with a temperature sensor for detecting temperature.

[0015] Further, the instant freezing chamber is open at the front side and is provided with a drawer which can be pulled out from the front side.

[0016] The utility model also provides a refrigerator, including the box body with the chamber, and refrigerating system, still include above-mentioned instant freezing chamber structure.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] By increasing the upper and lower two sets of surrounding blow-type evaporators on the outer wall of the instant freezing area of the refrigerator, the original branch air duct is replaced to perform refrigeration, so that precise temperature control and better instant freezing effect are realized, on the basis of which, an electronic switching valve is increased and a temperature sensor is arranged at the metal heat guide plate in the inner wall of the instant freezing area, so that the instant freezing function and other functions can be independently controlled and adjusted by the control module of the refrigerator.

[0019] In addition, the upper blow-type evaporator can also provide cold energy under the condition that the cold energy of the refrigerating chamber is insufficient. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 It is the structure schematic view of the refrigerator in the utility model selected optimal technology;

[0022] Figure 2is a structural schematic view of the instant freezing chamber of the embodiment of the utility model;

[0023] Figure 3 is a structural view of the refrigerator refrigerating system in the embodiment of the utility model;

[0024] Figure 4 is the control block diagram of the utility model;

[0025] 1, temperature guide plate;

[0026] 2, drawer;

[0027] 31, upper instant freezing evaporator;32, lower instant freezing evaporator;

[0028] 4, compressor;

[0029] 5, condenser;51, condensing fan;

[0030] 6, anti-condensation pipe;

[0031] 7, drying filter;

[0032] 8, economizer;

[0033] 9, electronic regulating valve;

[0034] 10, evaporator. DETAILED DESCRIPTION

[0035] In order to make the technical problem, technical scheme and beneficial effect to be solved by the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and embodiments.It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0036] The principle and structure of the utility model are described in detail below in combination with the drawings and embodiments.

[0037] Although the existing design realizes the integration of multiple functions to a certain extent, in actual application, the effect of instant freezing function often cannot achieve the expectation, at the same time, due to the limited refrigerating capacity of single evaporator, the efficiency of air-cooled system under the demand of multiple functions cannot be maximized, and there is certain energy waste.With the improvement of the requirement of consumers on the performance and energy efficiency of refrigerator, how to reduce energy consumption and improve refrigerating efficiency while meeting the demand of multiple functions has become the problem to be solved in current technology.

[0038] For example, Figure 1As shown in the figure, in order to avoid too many air ducts, the prior art directly sets the flash freezing chamber 221 in the freezing space 22, and sets cold conduction walls on both sides of the flash freezing chamber and spaced from the side walls of the freezing space, sets a heat preservation layer on the top surface and the bottom surface of the flash freezing chamber, and sets a heater 222 on the inner side of the heat preservation layer. That is, the flash freezing chamber and the freezing space of the refrigerator transfer cold energy in a cold conduction manner. Generally, the temperature of the freezing space is -18 DEG, and the temperature of the freezing space can be transferred to the flash freezing chamber through the cold conduction wall to cool the flash freezing chamber. Since the flash freezing chamber is not directly connected with the freezing space and does not need to open and close the air door, the disturbance of the cold air in the freezing chamber is prevented from affecting the temperature fluctuation. However, this method needs to use the cold energy of the freezing chamber, and since it is not directly refrigerated by the evaporator, the temperature control is unstable.

[0039] To this end, as shown in the figure, Figure 2 The utility model discloses a flash freezing chamber structure, the region of refrigerator is reserved for the flash freezing chamber, and the inner wall of the region is provided with a heat preservation layer. The flash freezing chamber comprises a plurality of temperature guide plates 1 and a flash freezing evaporator. The temperature guide plates 1 are arranged close to the heat preservation layer. The plurality of temperature guide plates 1 enclose a flash freezing area with an open front side. The flash freezing evaporator is arranged between the outer wall surface of the temperature guide plates 1 and the heat preservation layer of the refrigerator. The flash freezing evaporator is connected in parallel with the evaporator of the refrigerating system of the refrigerator. The temperature guide plates can transfer the cold energy of the flash freezing evaporator to the flash freezing area and make the temperature of the flash freezing area uniformly distributed to ensure that the temperature of food is uniformly distributed during the flash freezing process. The flash freezing evaporator is arranged at a position between the outer wall surface of the temperature guide plates and the heat preservation layer of the refrigerator. The cold energy provided by the refrigerating system of the refrigerator can be utilized. The flash freezing evaporator can be started when needed to provide refrigeration capacity for the flash freezing area, rapidly reduce the temperature to a required low temperature value, and avoid loss of nutrient components due to slow freezing.

[0040] The flash freezing chamber structure can freeze food to a required temperature for flash freezing in a short time and has a temperature equalizing effect, avoids excessive freezing or local icing, and improves the uniformity and efficiency of the flash freezing effect. By connecting the evaporators in parallel, the refrigerating system of the whole refrigerator is more efficient. The energy consumption can be reduced and the overall energy efficiency of the refrigerator can be improved under the premise of meeting the temperature requirements of different functional areas.

[0041] In specific embodiments, four temperature guide plates 1 are arranged on the upper, lower, left and right surfaces of the flash freezing chamber (the rear surface can also be provided with a temperature guide plate), and a flash freezing evaporator is arranged on the outer wall surface of the temperature guide plates 1.

[0042] Since the outer wall surface of the four temperature guide plates 1 is provided with the flash freezing evaporator, the flash freezing chamber can form a full-range cooling coverage, ensuring that the cold air is not hindered by any local obstacles, and avoiding uneven temperature distribution. Thus, the temperature in the flash freezing area can be rapidly and uniformly reduced, reducing the temperature difference that may occur during freezing, thereby improving the quality of food freezing.

[0043] In further embodiments, the flash freezing evaporator is arranged in a serpentine manner on the outer wall surface of each temperature guide plate of the flash freezing chamber. The flash freezing evaporator adopts a serpentine layout, which is uniformly distributed along the outer wall surface of the four temperature guide plates of the flash freezing chamber. Through this layout, the flash freezing evaporator can maximize the heat exchange efficiency, so that the cold air uniformly covers every part of the flash freezing area, ensuring the uniformity and efficiency of the cooling effect. The serpentine arrangement design can effectively increase the surface area of the evaporator, so that it can better contact with the temperature guide plate and improve the cooling efficiency. The serpentine layout increases the length of the refrigeration pipeline, thereby prolonging the time of cold air conduction and improving the cooling rate, rapidly reducing the temperature of the flash freezing chamber to the required level.

[0044] In specific embodiments, the flash freezing evaporator includes a plurality of sub-flash freezing evaporators arranged in parallel, i.e., the flash freezing evaporator is composed of a plurality of sub-flash freezing evaporator units, which are arranged on the outer wall surface of the temperature guide plate of the flash freezing chamber in a parallel manner. The inlet end of each sub-flash freezing evaporator is equipped with a valve for controlling the opening and closing of the refrigerant flow (or controlling the opening and closing and the flow size).

[0045] By setting the valve, the start and stop of each sub-flash freezing evaporator can be independently controlled according to actual needs. The cold air distribution can be flexibly adjusted, for example, during the defrosting stage, the start and stop of the corresponding sub-flash freezing evaporator can be controlled according to the actual frosting condition of the temperature guide plate.

[0046] In further embodiments, the plurality of valves can be a total valve integrated with multiple outlets, such as an electronic regulating valve with multiple outlet valves that can control the opening and closing, or multiple separately arranged valves.

[0047] In specific embodiments, the sub-flash freezing evaporators are respectively: an upper flash freezing evaporator 31 and a lower flash freezing evaporator 32, the upper flash freezing evaporator 31 is arranged on the upper wall surface and the upper half of the left and right walls of the flash freezing chamber, and the lower flash freezing evaporator is arranged on the lower wall surface and the lower half of the left and right walls of the flash freezing chamber; and the upper flash freezing evaporator, the lower flash freezing evaporator, and the refrigerator evaporator are arranged in parallel.

[0048] And since the upper instantaneous freezing evaporator and the lower instantaneous freezing evaporator are combined in a U-shaped coil, by dividing the instantaneous freezing evaporator into the upper instantaneous freezing evaporator and the lower instantaneous freezing evaporator, and adopting a ring-shaped design, the installation of the evaporator is facilitated, and the upper, lower, left and right four surfaces of the instantaneous freezing area are covered, precise temperature control can be achieved, and the normal operation of the original evaporator of the refrigerator is not affected.

[0049] In specific embodiments, the instantaneous freezing evaporator is a blow-molded evaporator, which is convenient to arrange on the outer side of the temperature guide plate, has a simple structure and high heat exchange efficiency.

[0050] In specific embodiments, the temperature guide plate 1 is a metal temperature guide layer. The metal temperature guide plate has high structural strength and good temperature guide effect.

[0051] In specific embodiments, the instantaneous freezing compartment structure can be placed at the bottom of the refrigeration compartment or at a position between the refrigeration compartment and the freezing compartment, wherein the outer side of the upper instantaneous freezing evaporator 31 is located in the refrigeration compartment and is covered (or not covered) by the temperature guide plate, that is, the upper instantaneous freezing evaporator 31 can also be turned on when the refrigeration compartment needs to provide cold energy, to assist the refrigeration compartment in refrigeration.

[0052] As shown in Figure 4 In specific embodiments, the temperature guide plate 1 is provided with a temperature sensor for detecting temperature, and temperature sensors can be respectively arranged on the upper temperature guide plate and the lower temperature guide plate, so that the upper evaporator temperature T1 of the upper instantaneous freezing evaporator corresponding to the temperature guide plate thereof and the lower evaporator temperature T2 of the lower instantaneous freezing evaporator corresponding to the temperature guide plate thereof can be determined through the temperature of the temperature guide plate. The evaporator temperature can be compared with the defrosting critical temperature T3 by the control system or control module of the refrigerator to control the start and stop of the instantaneous freezing evaporator for defrosting.

[0053] For example, when the upper evaporator temperature T1 reaches the defrosting critical temperature T3 and the lower evaporator temperature T2 does not reach the defrosting critical temperature T3, the upper instantaneous freezing evaporator can be directly closed by controlling the valve to defrost, and the lower instantaneous freezing evaporator remains open to ensure the temperature of the instantaneous freezing area.

[0054] When the upper evaporator temperature T1 does not reach the defrosting critical temperature T3 and the lower evaporator temperature T2 reaches the defrosting critical temperature T3, the lower instantaneous freezing evaporator can be directly closed by controlling the valve to defrost, and the upper instantaneous freezing evaporator remains open to ensure the temperature of the instantaneous freezing area.

[0055] When the upper evaporator temperature T1 reaches the defrosting critical temperature T3 and the lower evaporator temperature T2 also reaches the defrosting critical temperature T3, the upper instantaneous freezing evaporator and the lower instantaneous freezing evaporator are closed by controlling the valve.

[0056] AsFigure 2 As shown in the specific embodiment, the front side of the flash freezing compartment is opened, and a drawer 2 is arranged in the flash freezing compartment and can be drawn out from the front side, that is, the periphery of the drawer is provided with the temperature guide plate 2, and the drawer is adopted to facilitate the taking and placing of food materials.

[0057] As shown in the specific embodiment, the front side of the flash freezing compartment is opened, and a drawer 2 is arranged in the flash freezing compartment and can be drawn out from the front side, that is, the periphery of the drawer is provided with the temperature guide plate 2, and the drawer is adopted to facilitate the taking and placing of food materials. Figure 3 As shown in the specific embodiment, the front side of the flash freezing compartment is opened, and a drawer 2 is arranged in the flash freezing compartment and can be drawn out from the front side, that is, the periphery of the drawer is provided with the temperature guide plate 2, and the drawer is adopted to facilitate the taking and placing of food materials.

[0058] The refrigerator adopts the flash freezing compartment structure, so that the flash freezing compartment can freeze food to the temperature required for flash freezing in a short time, while avoiding the problems of excessive freezing or local icing, and improving the uniformity and efficiency of the flash freezing effect. By means of parallel evaporators, the refrigeration system of the whole refrigerator is more efficient, energy consumption can be reduced under the premise of meeting the temperature requirements of different functional areas, and the overall energy efficiency of the refrigerator is improved.

[0059] Specifically, the refrigeration system of the refrigerator specifically includes: an evaporator 10, a condenser 5, a compressor 4, a condensing fan 51, an anti-condensation pipe 6, a drying filter 7, an economizer 8, and the upper flash freezing evaporator 31 and the lower flash freezing evaporator 32 in the flash freezing compartment structure.

[0060] Specifically, the exhaust end of the compressor 4 is sequentially provided with the condenser 5, the anti-condensation pipe 6 and the drying filter 7, and an electronic regulating valve 9 (that is, the valve at the front end of the evaporator) connected to multiple evaporators at the same time, the electronic regulating valve 8 has an inlet and three outlets that can be controlled to be opened or closed, the inlet ends of the evaporator, the upper flash freezing evaporator and the lower flash freezing evaporator are respectively connected to the three outlets that can be controlled to be opened or closed of the electronic regulating valve, and the outlet ends of the evaporator 10, the upper flash freezing evaporator 31 and the lower flash freezing evaporator 32 are connected to the suction end of the compressor 5 after being converged.

[0061] It should be noted that the terms used above are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0062] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless specifically stated otherwise. Also, it is to be understood that the dimensions of the various parts shown in the drawings are not drawn to scale for the sake of convenience. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification as appropriate. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Thus, other examples of the exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings, and that the use of or insertion of a reference number in one drawing does not preclude its use in another drawing.

[0063] In the description of the present application, it is to be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" and the like indicated orientation or position relationship are usually based on the orientation or position relationship shown in the drawings, and only for the convenience of describing the present application and simplifying the description, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0064] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0065] In addition, it needs to be explained that the use of "first", "second" and the like to limit the parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning if there is no further declaration, so it cannot be understood as the limitation of the protection scope of the utility model. The above is only the preferred embodiment of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flash freeze chamber structure, characterized by, The application relates to a quick-freezing chamber structure of a refrigerator. The quick-freezing chamber comprises a plurality of temperature-conducting plates surrounding a quick-freezing area, a quick-freezing evaporator arranged between the outer wall of the temperature-conducting plates and the heat-insulating layer of the refrigerator, and the quick-freezing evaporator is connected in parallel with the evaporator of the refrigerating system of the refrigerator.

2. The flash freezing chamber structure of claim 1, wherein, The outer wall of the temperature-conducting plates of the quick-freezing chamber is provided with the quick-freezing evaporator.

3. A flash freezing chamber structure as claimed in claim 2, wherein The quick-freezing evaporator is arranged in a serpentine shape on the outer wall of each temperature-conducting plate of the quick-freezing chamber.

4. The flash freezing chamber structure of claim 1, wherein, The quick-freezing evaporator comprises a plurality of sub-quick-freezing evaporators connected in parallel, and each sub-quick-freezing evaporator is provided with a valve for switching.

5. A flash freezing chamber structure as claimed in claim 4, wherein The sub-quick-freezing evaporators are an upper quick-freezing evaporator arranged on the upper wall and the upper half of the left and right walls of the quick-freezing chamber and close to the refrigerating chamber of the refrigerator, and a lower quick-freezing evaporator arranged on the lower wall and the lower half of the left and right walls of the quick-freezing chamber.

6. The flash freezing chamber structure of claim 1, wherein, The quick-freezing evaporator is a blow-up evaporator.

7. The flash freezing chamber structure of claim 1, wherein The temperature-conducting plates are metal temperature-conducting plates.

8. The flash freezing chamber structure of claim 1, wherein, The temperature-conducting plates are provided with temperature sensors for detecting temperature.

9. The flash freezing chamber structure of claim 1, wherein, The quick-freezing chamber is open at the front side and is provided with a drawer which can be pulled out from the front side.

10. A refrigerator comprising a cabinet having a compartment, and a refrigeration system, characterized in that, The application further relates to a quick-freezing chamber structure as claimed in any one of claims 1 to 9. The application further relates to a quick-freezing chamber structure as claimed in any one of claims 1 to 9.

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