Refrigerator

Abstract

To provide specifically, a refrigerator relating to a technical field of a freezing device.SOLUTION: A refrigerator includes a refrigerating chamber top cover, an evaporator, a storage chamber, a refrigerating chamber positioned below the storage chamber, a heat insulation member and a reflection film. At least a part of an upper wall of the refrigerating chamber is formed on the refrigerating chamber top cover, the evaporator is arranged in the refrigerating chamber, the heat insulation member is arranged between the refrigerating chamber top cover and the evaporator, and the reflection film is positioned between the heat insulation member and the evaporator. Due to that the refrigerator is provided with the heat insulation member, the evaporator directly transmits cool air to the storage chamber via the refrigerating chamber top cover, and eventually, a situation that a temperature in the storage chamber becomes excessively low is avoided. The reflection film is arranged so as to inhibit transmission of heat energy from the storage chamber to the refrigerating chamber.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the technical field of refrigeration equipment, and specifically provides a refrigerator. [Background technology]

[0002] In order to increase the longitudinal space of the storage compartment of the refrigerator, the prior art usually installs the refrigerator compartment below the storage compartment, which has a technical problem that heat energy is transferred from the storage compartment to the refrigerator compartment. Summary of the Invention

[0003] In order to solve the above problems in the prior art, the present invention provides a novel refrigerator.

[0004] One object of the present invention is to block the transfer of thermal energy from the storage compartment to the refrigeration compartment by placing a reflective film.

[0005] In order to achieve the above object, the present invention provides a refrigerator, comprising: A storage compartment and a refrigeration compartment located below the storage compartment, a refrigerator compartment top cover, at least a portion of an upper wall of the refrigerator compartment being formed on the refrigerator compartment top cover; an evaporator disposed within the refrigeration chamber; A heat retaining member disposed between the refrigerator compartment top cover and the evaporator; and a reflective film disposed between the heat retaining member and the evaporator.

[0006] In some embodiments, the reflective film is aluminum foil. In some embodiments, the heat retaining member is fixed to the refrigerator compartment top cover and the evaporator, respectively. In some embodiments, an upper surface of the heat-insulating member abuts against the refrigerator compartment top cover and a bottom surface of the heat-insulating member abuts against the evaporator, and / or an engaging hook is provided on the bottom side of the refrigerator compartment top cover, the engaging hook hooks the peripheral portion of the heat-insulating member to fix the heat-insulating member to the bottom side of the refrigerator compartment top cover, and / or a positioning rib is further provided on the bottom side of the refrigerator compartment top cover, and a positioning groove is provided on the heat-insulating member, and the positioning rib is fitted into the positioning groove to prevent horizontal movement of the heat-insulating member. In some embodiments, the evaporator and the refrigerator compartment top cover are directly fixed to each other, or the evaporator has a fixing portion, and the fixing portion is fixed onto the heat-insulating member by a screw, a bolt or an engagement. In some embodiments, an engagement hook is provided on the bottom side of the refrigerator compartment top cover, and the engagement hook hooks onto the peripheral portion of the heat-insulating material, and in the horizontal direction, the distance between the fixing portion and the engagement hook is smaller than a preset distance. In some embodiments, a frost retention space is formed between the heat retention member and the evaporator, and an opening is formed at one end of the frost retention space facing the air flow. In some embodiments, the refrigerator further comprises a reflective film disposed on a side of the refrigerator compartment top cover away from the heat retention member. In some embodiments, the refrigerator compartment top cover includes a horizontal portion corresponding to the evaporator and an inclined portion located on the rear side of the evaporator, the inclined portion being inclined so as to be gradually positioned upward as it moves away from the horizontal portion, and / or the refrigerator further includes an insulating layer affixed to a bottom side of the inclined portion. In some embodiments, the refrigerator further comprises an evaporator base plate secured to a bottom side of the evaporator, the evaporator base plate having a drainage opening, and / or the refrigerator further comprises a defroster disposed on the evaporator.

[0007] From the above description, those skilled in the art can understand that in the technical solution described in the present invention, a heat-insulating member is provided between the top cover of the refrigerator compartment and the evaporator, and the heat-insulating member is fixed to the top cover of the refrigerator compartment and the evaporator, respectively, to prevent the evaporator from directly transferring cold air to the storage compartment through the top cover of the refrigerator compartment, which would result in an excessively low temperature in the storage compartment. In addition, the reflective film can be arranged to prevent the transfer of thermal energy from the storage compartment to the refrigerator compartment. An engaging hook is provided on the bottom side of the refrigerator compartment top cover, which enables the refrigerator compartment top cover to hook the edge of the heat-insulating member via the engaging hook, facilitating attachment between the refrigerator compartment top cover and the heat-insulating member. Furthermore, by fixing the evaporator to the refrigerator compartment top cover in the hanging mode (hanging method), the refrigerator compartment top cover has a downward force under the gravitational action of the evaporator, which makes it possible to avoid the phenomenon of the refrigerator compartment top cover bulging upward.

[0008] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the present invention taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0009] In order to more clearly describe the technical solutions of the present invention, some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art can understand that the same reference numerals denote the same or similar components or parts in different accompanying drawings, and the accompanying drawings of the present invention are not necessarily drawn to scale with each other.

[0010] [Figure 1] FIG. 2 is a schematic diagram showing the distribution of compartments in refrigerators according to some embodiments of the present invention. [Diagram 2] FIG. 2 is a schematic diagram showing the assembly state of the refrigerator compartment top cover, the evaporator and related structures according to some embodiments of the present invention. [Diagram 3] FIG. 3 is an exploded view of the structure shown in FIG. 2. [Figure 4]FIG. 2 is an axial side view of an evaporator and associated structure according to some embodiments of the present invention. [Diagram 5] FIG. 2 is an axial side view of a refrigerator compartment top cover and associated structure according to some embodiments of the present invention. [Figure 6] FIG. 6 is an enlarged view of part A in FIG. 5. [Figure 7] FIG. 3 is a cross-sectional view of the structure shown in FIG. [Figure 8] 1 is a schematic diagram illustrating the structural principle of a refrigerator compartment top cover, an evaporator and its related structures in some embodiments of the present invention; FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Those skilled in the art should understand that the embodiments described below are only some of the embodiments of the present invention, not all of the embodiments of the present invention, and the some embodiments are intended to interpret the technical principles of the present invention, and do not limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, other embodiments obtained by those skilled in the art without creative labor shall all be included in the scope of protection of the present invention.

[0012] In the description of the present invention, terms indicating directions or positional relationships, such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," are based on directions or positional relationships shown in the accompanying drawings, and are used for explanatory purposes only, and do not indicate or imply that the apparatus or device necessarily has a specific orientation, or is constructed and operated in a specific orientation, and are not to be understood as limitations of the present invention. Furthermore, terms such as "first," "second," and "third" are used for explanatory purposes only, and are not to be understood as indicating or implying relative importance.

[0013] Furthermore, in the description of the present invention, unless otherwise expressly specified and limited, the terms "attached", "coupled" and "connected" should be understood in a broad sense, for example, they may be fixed, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or internally communicated between two devices. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0014] Furthermore, it should be noted that the refrigerator of the present invention is an air-cooled refrigerator.

[0015] FIG. 1 shows the distribution of each compartment of a refrigerator in some embodiments of the present invention. In some embodiments, the refrigerator includes a cabinet 1, which is composed of a storage compartment 11, a refrigerator compartment 12, and a compressor compartment 13. Here, the storage compartment 11 is located above the refrigerator compartment 12 and is used to store items. The items may be foodstuffs, beverages, medicines, etc. Furthermore, those skilled in the art may set the storage compartments 11 to any feasible number according to actual needs, and may set multiple storage compartments, such as a freezer compartment, a refrigerator compartment, and / or a temperature-variable compartment, in the cabinet 1 according to the storage requirements of the items.

[0016] Furthermore, the refrigerator compartment 12 is for disposing an evaporator. The compressor compartment 13 is for disposing a compressor, a condenser, a water tray, etc.

[0017] 2 to 8 show a refrigerator compartment top cover, an evaporator and related structures of several embodiments of the present invention. As shown in Fig. 2 to Fig. 4, the refrigerator of the present invention further includes a refrigerator compartment top cover 2, a return air hood 3, an evaporator 4, an evaporator bottom plate 5, a defroster 6 and a heat retaining member 7.

[0018] Here, the refrigerator compartment top cover 2 is placed over the refrigerator compartment 12 so that at least a portion of the upper wall of the refrigerator compartment 12 is formed on the refrigerator compartment top cover 2. As can be seen from Figures 2 and 3, a front side plate (not shown) extending downward is provided at the front end of the refrigerator compartment top cover 2, and the front side plate forms at least a portion of the front wall of the refrigerator compartment 12. Furthermore, a ventilation hole (not shown) is provided in the front side plate, and air can enter the refrigerator compartment 12 from the ventilation hole.

[0019] 2 and 3, the return air hood 3 is disposed in front of the refrigerator compartment top cover 2 and shields the front plate of the refrigerator compartment top cover 2. Furthermore, the return air hood 3 is fixed to the refrigerator compartment top cover 2 by any feasible means such as a screw connection, engagement, snap fit, etc.

[0020] As shown in Figures 3 and 4, the evaporator 4 and the evaporator bottom plate 5 are fixed to the defroster 6. Specifically, the evaporator bottom plate 5 is disposed on the bottom side of the evaporator 4 and fixed to the evaporator 4 via screws or bolts. The defroster 6 is a pipe that is wrapped around, attached to, or fitted into the evaporator 4 to allow the refrigerant to flow. Alternatively, the evaporator 4 is a finned evaporator, and grooves are provided in the fins of the evaporator 4, and the defroster 6 is fitted into the grooves.

[0021] Here, a drain opening 51 is provided in the evaporator bottom plate 5. Condensed water and frost water on the evaporator 4 drop onto the bottom wall of the refrigerator compartment 12 through the opening 51, and then flow into a water tray in the compressor compartment 13 through a water leak hole provided on the bottom wall of the refrigerator compartment 12 and a water conduit sealed and connected to the water leak hole.

[0022] Here, a defroster 6 is connected in series with the compressor of the refrigerator to receive the high-temperature refrigerant flowing from the compressor, and the evaporator 4 is heated by the high-temperature refrigerant to melt the condensed frost on the evaporator 4.

[0023] Furthermore, those skilled in the art may, if necessary, make the defrosting device 5 an electric heating device that is wrapped around, attached to or fitted onto the evaporator 4. When energized, the electric heating device heats the evaporator 4 to melt the condensed frost on the evaporator 4.

[0024] 2 and 3, the refrigerator compartment top cover 2 includes a horizontal portion 21 corresponding to the evaporator 4, and an inclined portion 22 located on the rear side of the evaporator 4, and the inclined portion 22 is inclined so as to be positioned gradually higher as it moves away from the horizontal portion 21. Although not shown, a blower is disposed below the inclined portion 22, and the blower is used to circulate air between the storage compartment 11 and the refrigerator compartment 12.

[0025] 5 to 8, the heat-insulating member 7 is a plate-shaped structural member disposed between the refrigerator compartment top cover 2 and the evaporator 4. The heat-insulating member 7 is fixed to both the refrigerator compartment top cover 2 and the evaporator 4. The upper surface of the heat-insulating member 7 abuts against the refrigerator compartment top cover 2, and the bottom surface of the heat-insulating member 7 abuts against the evaporator 4.

[0026] In the present invention, the heat-insulating member 7 is a member formed from any possible heat-insulating material. The heat-insulating material may be, for example, a metal-based heat-insulating material, a ceramic-based heat-insulating material, an organic heat-insulating material, etc. Furthermore, the heat-insulating member 7 may be a structure made of a single material, a structure made of multiple materials, or a structure in which multiple members are fixed to each other.

[0027] 3, 5 and 6, an engagement hook 211 and a positioning rib 212 are provided on the bottom side of the refrigerator compartment top cover 2 (specifically, the bottom side of the horizontal portion 21). An engagement groove 71 corresponding to the engagement hook 211 and a positioning groove 72 corresponding to the positioning rib 212 are provided on the heat insulation member 7. Preferably, the engagement groove 71 and the positioning groove 72 are all provided on the peripheral portion of the heat insulation member 7.

[0028] 5 and 6, in the assembled state, the engagement hooks 211 are fitted into the engagement grooves 71 and abut against the upper wall of the engagement grooves 71, suspending the heat-insulating member 7 below the refrigerating compartment top cover 2. Preferably, the heat-insulating member 7 abuts against the bottom surface of the refrigerating compartment top cover 2. The positioning ribs 212 are fitted into the positioning grooves 72 to limit the horizontal movement of the heat-insulating member 7.

[0029] 5, the refrigerator compartment top cover 2 is provided with engagement hooks 211 and positioning ribs 212 on both the left and right sides, respectively, and the heat insulation member 7 is provided with engagement grooves 71 and positioning grooves 72 on both the left and right sides. The refrigerator compartment top cover 2 and the heat insulation member 7 are completely fixed together by the engagement hooks 211 and positioning ribs 212, engagement grooves 71 and positioning grooves 72 on both sides.

[0030] Furthermore, assuming that the refrigerator compartment top cover 2 and the heat-insulating member 7 are completely fixed, a person skilled in the art may, if necessary, omit providing the engagement groove 71 in the heat-insulating member 7 and hook the bottom surface of the heat-insulating member 7 with the engagement hook 211.

[0031] Alternatively, on the premise that the refrigerator compartment top cover 2 and the heat retaining member 7 are completely fixed, a person skilled in the art may omit providing the positioning rib 212 and the positioning groove 72 as necessary.

[0032] 3 , the evaporator 4 has a fixing part 41, which is fixed to the heat-insulating member 7 by a screw or a bolt. Specifically, the fixing part 41 has a through hole for passing the screw or the bolt, and a screw hole is provided on the heat-insulating member 7, and a threaded segment of the screw or the bolt passes through the through hole of the fixing part 41 and then is screwed into the screw hole, thereby fixing the evaporator 4 to the heat-insulating member 7.

[0033] Furthermore, those skilled in the art may fix the evaporator 4 and the heat retaining member 7 by any other feasible means such as engagement, if necessary.

[0034] Furthermore, in the horizontal direction, the distance between the fixing part 41 and the engaging hook 211 is smaller than a preset distance so that the fixing part 41 and the engaging hook 211 are sufficiently close to each other. This makes it possible to avoid deformation of the heat-insulating member 7 due to a large moment that occurs when the fixing part 41 and the engaging hook 211 are far apart, and thus to obtain the reliability of the heat-insulating member 7. Here, the preset distance is a parameter obtained by multiple tests, and the magnitude of the value depends on parameters such as the material and thickness of the heat-insulating member 7. The preset distance may be any feasible value such as 1 cm, 2 cm, 5 cm, etc.

[0035] In some other embodiments of the present invention, those skilled in the art may directly fix the evaporator 4 and the refrigerator compartment top cover 2 as needed. For example, a fixing post with a screw hole is provided below the refrigerator compartment top cover 2, and a screw or bolt is passed through a through hole on the fixing part 41 and then screwed into the fixing post to fix the evaporator 4 and the refrigerator compartment top cover 2, and the heat-insulating member 7 is sandwiched between the evaporator 4 and the refrigerator compartment top cover 2. Alternatively, those skilled in the art may omit the arrangement of the heat-insulating member 7 as needed, and the evaporator 4 may be abutted against the refrigerator compartment top cover 2, and a heat-insulating layer may be provided on the upper side of the refrigerator compartment top cover 2.

[0036] 3, 5 and 8, a groove 73 having an opening is provided on the side of the heat-insulating member 7 facing the evaporator 4. After the heat-insulating member 7 is attached to the evaporator 4, the upper wall, side wall and upper surface of the groove 73 are integrated to surround the frost retention space 8, and the opening of the groove 73 forms an opening 81 of the frost retention space 8.

[0037] As can be easily seen from the figure, the opening 81 is formed at one end of the frost retention space 8 facing the air flow, so that the air flow enters the frost retention space 8 from the opening 81, then passes through the ventilation gap above the evaporator 4 and is cooled by the evaporator 4.

[0038] Preferably, the height of the frost retention space 8 is greater than the maximum height of the condensed frost on the evaporator 4 to prevent the condensed frost from contacting the upper wall (heat retention member 7) of the frost retention space 8 and impeding the air flow.

[0039] As shown in FIG. 8, in some embodiments of the present invention, the refrigerator further includes a reflective film 9 arranged on the surface of the refrigerator compartment top cover 2 opposite to the surface to which the heat-insulating member 7 is fixed. The reflective film 9 is used to prevent heat transfer from the storage compartment 11 to the refrigerator compartment 12. In another embodiment, the reflective film 9 may be arranged between the refrigerator compartment top cover 2 and the heat-insulating member 7, and in this case, the reflective film 9 may be attached to the bottom surface of the refrigerator compartment top cover 2 or to the upper surface of the heat-insulating member 7. Furthermore, a person skilled in the art may also arrange the reflective film 9 between the heat-insulating member 7 and the evaporator 4 as necessary. Preferably, the reflective film 9 is an aluminum foil.

[0040] 8, in some embodiments of the present invention, the refrigerator further includes an insulating layer 10 attached to the bottom side of the inclined portion 22. The insulating layer 10 is used to prevent condensation or ice from appearing on the bottom surface of the inclined portion 22. The insulating layer 10 is made of any feasible material, such as PE cotton (also called cross-linked polyethylene, cross-linked foam cotton), foamed polyurethane, polybenzene board, etc.

[0041] From the above explanation, those skilled in the art can understand that in the present invention, by suspending the evaporator 4 below the refrigerator compartment top cover 2 via the heat-insulating member 7, or by directly fixing the evaporator 4 and the refrigerator compartment top cover 2 to each other and suspending the evaporator below the refrigerator compartment top cover, the refrigerator compartment top cover 2 will have a downward force under the gravitational action of the evaporator 4, thereby avoiding the phenomenon of the refrigerator compartment top cover 2 bulging upward. This design solves the problem of the top cover of the cooling chamber expanding upwards during long-term use of the refrigerator due to processing errors, the interaction of heat and cold, etc., and also avoids the impact on the sealing performance of the refrigerator chamber in serious cases where the top cover of the refrigerator chamber expands upwards. At the same time, such a design allows the elimination of a separate top cover for the evaporator 4, reducing the production and manufacturing costs of the refrigerator.

[0042] Furthermore, by providing an engaging hook 211 on the bottom side of the refrigerator compartment top cover 2, the refrigerator compartment top cover 2 can hook the edge of the heat insulation member 7 via the engaging hook 211, facilitating attachment of the refrigerator compartment top cover 2 and the heat insulation member 7. Specifically, the worker first fixes the heat insulation member 7 and the evaporator 4, and then aligns the refrigerator compartment top cover 2 and the heat insulation member 7 and presses the refrigerator compartment top cover 2 downward, thereby fixing the refrigerator compartment top cover 2 and the heat insulation member 7.

[0043] Although the technical solutions of the present invention have been described above in conjunction with the above embodiments, those skilled in the art can understand that the protection scope of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can divide and combine the technical solutions of the above embodiments, and make equivalent modifications and substitutions to the related technical features. Any modifications, equivalent substitutions, improvements, etc. made within the technical idea and / or technical principles of the present invention shall all be included in the protection scope of the present invention.

Claims

1. A refrigerator comprising a storage compartment and a refrigeration compartment located below the storage compartment, a refrigerator compartment top cover, at least a portion of an upper wall of the refrigerator compartment being formed on the refrigerator compartment top cover; an evaporator disposed within the refrigeration chamber; A heat retaining member disposed between the refrigerator compartment top cover and the evaporator; The refrigerator further comprises a reflective film disposed between the heat retention member and the evaporator.

2. 2. The refrigerator according to claim 1, wherein the reflective film is an aluminum foil.

3. 2. The refrigerator according to claim 1, wherein the heat retaining member is fixed to the refrigerator compartment top cover and the evaporator.

2. The refrigerator according to claim 1.

4. 4. The refrigerator according to claim 3, wherein an upper surface of the heat-insulating member abuts against the refrigerator compartment top cover and a bottom surface of the heat-insulating member abuts against the evaporator, and / or an engaging hook is provided on the bottom side of the refrigerator compartment top cover, the engaging hook hooks a peripheral portion of the heat-insulating member to fix the heat-insulating member to the bottom side of the refrigerator compartment top cover, and / or a positioning rib is further provided on the bottom side of the refrigerator compartment top cover, a positioning groove is provided on the heat-insulating member, and the positioning rib is fitted into the positioning groove to prevent horizontal movement of the heat-insulating member.

5. The evaporator and the refrigerator compartment top cover are directly fixed to each other, Alternatively, the refrigerator according to claim 4, wherein the evaporator has a fixing portion, and the fixing portion is fixed onto the heat-insulating member by a screw, a bolt or an engagement.

6. 5. The refrigerator according to claim 4, wherein an engaging hook is provided on a bottom side of the refrigerator compartment top cover, the engaging hook hooks a peripheral portion of the heat-insulating member, and a distance between the fixing portion and the engaging hook in a horizontal direction is smaller than a preset distance.

7. 2. The refrigerator according to claim 1, wherein a frost retention space is formed between the heat retention member and the evaporator, and an opening is formed at one end of the frost retention space facing the air flow.

8. The refrigerator according to any one of claims 1 to 7, further comprising a reflective film disposed on a side of the refrigerator compartment top cover away from the heat retention member.

9. The refrigerator compartment top cover includes a horizontal portion corresponding to the evaporator and an inclined portion located on a rear side of the evaporator, and the inclined portion is inclined so as to be gradually positioned upward as it moves away from the horizontal portion, And / or the refrigerator according to any one of claims 1 to 7, further comprising an insulating layer attached to a bottom side of the inclined portion.

10. The refrigerator further includes an evaporator bottom plate fixed to a bottom side of the evaporator, and the evaporator bottom plate is provided with a drainage opening; and / or The refrigerator according to any one of claims 1 to 7, further comprising a defrosting device disposed on the evaporator.

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