WO2015027925A1

WO2015027925A1 - Refrigeration device and soft freezing compartment thereof

Info

Publication number: WO2015027925A1
Application number: PCT/CN2014/085338
Authority: WO
Inventors: 宋清波; 李高杰; 郭磊; 秦道洋
Original assignee: 海尔集团公司; 青岛海尔股份有限公司
Priority date: 2013-08-28
Filing date: 2014-08-27
Publication date: 2015-03-05
Also published as: CN104344624B; CN104344624A

Abstract

A refrigeration device and soft freezing compartment thereof, said soft freezing compartment (100) comprising: a liner (10) and an evaporator (30) fitted on the liner (10). The liner (10) comprises a top wall (107), a bottom wall, a left side wall, a right side wall (103b), a rear wall (109), and inclined walls connecting the top wall (107) to at least one of the left side wall, the right side wall (103b), or the rear wall (109). The evaporator (30) is arranged on the inclined wall. By means of providing with inclined walls the liner (10) of the soft freezing compartment (100) and the evaporator (30) being fitted to the inclined wall, the cold from the evaporator (30) can sink along the inclined walls and side walls, creating natural vertical convection and solving the problem, in the soft freezing compartment of the refrigeration device (100), of the temperature difference between zones being too large as a result of excessive concentration of cold. Furthermore, the structure of the soft freezing compartment (100) is simple, the compartment is suitable for spaces of different sizes, and it is also cost-effective.

Description

Refrigeration unit and its soft freezer

Technical field

The invention belongs to the technical field of household appliance manufacturing, and in particular relates to a refrigeration device and a soft freezing chamber thereof.

Background technique

The evaporators of the soft freezer compartments of the refrigeration unit are typically regular (e.g., square or rectangular) tubesheet evaporators that are attached to the back or top of the chamber. This type of evaporator is too concentrated in the compartment to cause concentration of the cold source, which in turn causes the temperature difference between the partitions of the compartment to be too large during cooling, so that the region where the temperature is too high does not achieve the desired food storage effect. More seriously, if the temperature of the sensor installation area is too high, it may lead to an increase in compressor operating time, thereby increasing energy consumption.

For the design of dividing the compartment into upper and lower parts, the arrangement of such an evaporator also increases the cost in addition to the above problems. For example, in order to sink the cold air, it is necessary to make some holes in the upper part of the compartment, or other arrangements, so that the cooling amount can be sinked to the lower part of the compartment through the hole and the like. However, this arrangement still has the problems of low temperature in the upper part and high temperature in the lower part due to the concentration of the cold source, and the design of dividing the compartment into upper and lower parts increases the difficulty of the process and increases the cost.

Summary of the invention

In order to solve the above technical problems, an object of the present invention is to provide a soft freezing compartment of a refrigerating apparatus, comprising a liner and an evaporator fitted to the inner tank, the inner tank including a top wall, a bottom wall, and a left side a wall, a right side wall, a rear wall, and an inclined wall connected to at least one of the top wall and the left side wall, the right side wall, and the rear wall, the evaporator being disposed on the inclined wall.

As a further improvement of the present invention, the inclined wall is a left inclined wall and a right inclined wall connected to the top wall and the left side wall and the right side wall;

The evaporator includes two sub-evaporators arranged in parallel, and the two sub-evaporators are disposed only on the left inclined wall and the right inclined wall.

The evaporator includes two sub-evaporators arranged in series, two of the sub-evaporators are disposed only on the left and right inclined walls; and a connecting pipe connecting the two sub-evaporators, the connecting pipe Setting On one of the top wall, the bottom wall, the left side wall, the right side wall, and the rear wall.

As a further improvement of the present invention, the left angled wall, the right inclined wall and the top wall form a first angle of the same angle, and the first angle ranges from 130 degrees to 150 degrees.

As a further improvement of the present invention, the value of the first included angle is 150 degrees.

As a further improvement of the present invention, the left inclined wall and the right inclined wall form a second angle with the same angle between the left side wall and the right side wall, and the second angle ranges from 120 degrees. To 140 degrees.

As a further improvement of the present invention, the value of the second included angle is 120 degrees.

As a further improvement of the present invention, the widths of the left inclined wall and the right inclined wall gradually decrease from the opening of the inner casing toward the rear wall.

As a further improvement of the present invention, the distance from any point on the intersection of the left inclined wall, the right inclined wall and the left side wall and the right side wall to the plane of the top wall is smaller than the distance to the bottom wall The distance in the plane.

As a further improvement of the invention, the evaporation zones of the two sub-vapors are the same.

As a further improvement of the present invention, the evaporation areas of the two sub-evaporators are the same, and the evaporation area of the connecting pipe is smaller than the evaporation area of the sub-evaporator.

Accordingly, the present invention also provides a refrigerating apparatus including the soft freezing compartment of the refrigerating apparatus as described above.

Compared with the prior art, the soft freezing compartment of a refrigerating apparatus provided by the present invention can provide the cold volume of the evaporator along the inner wall by providing an inclined wall and an evaporator matching the inclined wall. The inclined wall and the side wall sink to form the upper and lower natural convection of the cold amount, which can solve the problem that the temperature difference of each zone is too large due to the excessive concentration of the cold in the soft freezing compartment of the refrigeration device. Moreover, the structure is simple, can adapt to different sizes of space, and can also save costs.

DRAWINGS

1 is a schematic structural view of an embodiment of a soft freezing compartment of a refrigeration apparatus according to the present invention;

Figure 2 is a schematic structural view of the inner casing of Figure 1;

Figure 3 is a schematic structural view of the evaporator of Figure 1;

Figure 4 is a schematic view showing the structure of another embodiment of the soft freezing compartment of the refrigeration apparatus of the present invention;

Figure 5 is a schematic view showing the structure of the evaporator of Figure 4;

Description of the reference signs:

Soft freezer, 100;

Liner, 10;

Right side wall, 103b;

Left oblique wall, 105a;

Right oblique wall, 105b;

Top wall, 107;

Back wall, 109;

Left line, 111a;

Right line, 111b;

Evaporator, 30;

Sub-evaporator, 31;

Heat exchanger plate, 311;

Evaporation tube, 313;

Connecting pipe, 33;

First angle, α;

The second angle, β.

detailed description

The invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.

Referring to Fig. 1, Fig. 2, and Fig. 3, a specific embodiment of a soft freezing compartment of the refrigerating apparatus of the present invention will be described. In the present embodiment, the soft freezing compartment 100 of the refrigerating apparatus includes a bladder 10 whose front end is open, and an evaporator 30 which is provided to fit the inner tank 10 and is used to control the temperature of the soft freezing compartment 100. The inner liner 10 may be fixedly disposed in the soft freezing compartment 100 or may be drawn in the front-rear direction of the soft freezing compartment 100. The evaporator 30 may be provided separately in the soft freezing compartment or in series with the evaporator in the refrigerating compartment and/or the freezing compartment. The technical relationship of the present invention is not related to the connection relationship between the inner casing 10 and the soft freezing compartment 100 in the soft freezing compartment 100, and the connection relationship between the evaporator 30 in the soft freezing compartment 100 and the evaporator in the refrigerating compartment and/or the freezing compartment. Therefore, it will not be described in detail in the present embodiment.

It should be noted that the refrigeration device referred to herein may include a common refrigeration device such as a refrigerator, a freezer, and a refrigerated wine cabinet.

The inner tank is a body structure open at the front end, and includes a bottom wall (not labeled) and a left side wall (not Marked), the right side wall 103b, the top wall 107, the rear wall 109, and the top wall 107 are connected to at least one of the left side wall, the right side wall 103b, and the rear wall 109 with an inclined wall (not shown), the evaporator 30 is placed on the inclined wall.

In a preferred embodiment of the present invention, the inclined wall includes a left inclined wall 105a connected between the top wall 107 and the left side wall, and a right inclined wall 105b connected between the top wall 107 and the right side wall 103b. A left intersection line 111a is formed between the left side wall and the left inclined wall 105a, and a right intersection line 111b is formed between the right side wall 103b and the right inclined wall 105b.

Preferably, the inner liner 10 is mirrored along its central axis.

Correspondingly, the top wall 107 is disposed parallel to the bottom wall, and the area of the top wall 107 is smaller than the area of the bottom wall to facilitate forming an angled left inclined wall between the top wall 107 and the bottom wall. 105a, right inclined wall 105b.

Correspondingly, the left side wall is parallel and mirrored with respect to the right side wall 103b, and the plane where the left side wall and the right side wall 103b are located is perpendicular to the plane where the top wall 107 and the bottom wall are located, so as to facilitate the left side. The angle formed by the inclined wall 105a and the right inclined wall 105b is the same.

Correspondingly, a first angle α is formed between the left side wall and the left inclined wall 105a, and an angle between the right side wall 103b and the right inclined wall 105b is the same as the angle of the first angle α.

Correspondingly, a second angle β is formed between the left inclined wall 105a and the top wall 107, and an angle between the right inclined wall 105b and the top wall 107 is formed at the same angle as the second angle β.

Correspondingly, the first angle α and the second angle β are double obtuse angles, thereby forming a top 10 isosceles trapezoidal structure. It can be understood that the evaporator 30 conforming to such a structure can emit cold amount along the left inclined wall 105a to the left side wall and the bottom according to the principle that the hot air rises and the cold air sinks. The wall, the inner tank storage area, finally to the top wall 107, and along the right inclined wall 105b to the right side wall 103b, the bottom wall, the inner tank storage area, and finally to the top wall 107 form a closed cold air exchange loop, through the cooling The natural convection achieves a cooling effect.

Preferably, starting from the operator's visual experience, and taking into account the space utilization of the inner liner 10, and the arrangement of the evaporator 30 with the inner casing 10, the first angle α ranges from 130 degrees to 150 degrees. The second angle β ranges from 120 degrees to 140 degrees.

Preferably, the value of the first angle α is 150 degrees, and the value of the second angle β is 120 degrees, so that the space of the inner tank 10 can be utilized to the maximum, so that the left inclined wall 105a and the right inclined wall 105b are not disposed. The internal storage space of the liner 10 is excessively wasted.

Preferably, any point on the left intersection line 111a and the right intersection line 111b is in the plane of the top wall 107. The distance is less than its distance from the plane of the bottom wall. It can be understood that the user of the refrigeration device usually habitually places the storage item on the bottom of the inner liner 10 and less on the space on the top of the inner liner 10, so the left inclined wall 105a and the right inclined wall 105b are disposed on the inner liner 10 The internal up position will satisfy the operator's habits, and the internal space of the liner 10 will be well utilized.

It can be understood that, in other embodiments of the present invention, considering that the temperature in the soft freezing chamber 100 near the opening portion of the inner casing 10 is relatively high, the widths of the left inclined wall 105a and the right inclined wall 105b may be further set to The opening from the inner casing 10 gradually decreases toward the rear wall 107, so that the evaporator 30 disposed thereon has a larger evaporation area near the opening, so that the temperature in the soft freezing chamber 100 is more uniform. The cooling effect of the soft freezer compartment 100 is ensured.

Correspondingly, the distance from any point on the intersection line between the left inclined wall 105a and the right inclined wall 105b and the left side wall and the right side wall 103a to the plane of the top wall 109 is smaller than the distance to the bottom wall The distance from the plane of 103.

In an embodiment of the present invention, the evaporator 30 is a tube-and-plate evaporator, and the evaporator 30 is disposed on the left inclined wall 105a and the right inclined wall 105b, and includes two sub-evaporators 31 arranged in series, two sub-bodies The evaporators 31 are connected by a connecting pipe 33. The sub-evaporator 31 includes a heat exchange plate 311 and an evaporation tube 313 attached to the heat exchange plate 311 for circulating a refrigerant, the heat exchange plate 311 for increasing an evaporation area, and the evaporation tube 313 is a snake type Roundabout layout for greater evaporation area.

Preferably, the evaporation zones of the two sub-evaporators 31 are the same to ensure the same cooling effect on both sides of the liner 10.

Correspondingly, the material of the heat exchange plate 311 and the evaporation tube 313 is not particularly limited, and generally, various materials such as aluminum and copper are used.

Correspondingly, the shape of the heat exchange plate 311 is not particularly limited, and may be various shapes such as a square, a rectangle, a triangle, and a trapezoid.

Correspondingly, the shape of the evaporation tube 313 is not particularly limited, such as a straight tube or a knot arrangement. For example, the evaporation tube 313 is provided as a straight tube. This structural arrangement has the advantage that the evaporation tube 313 is the most material-saving material and cost-saving, but at the same time, the evaporation area is also minimized. For another example, the evaporation tube 313 is arranged in a plurality of structures, such as a serpentine, a square, a triangle, a trapezoid, etc., and the structure uses more materials than the arrangement of the straight tube structure, and the cost is increased, but the evaporation is performed. The area will increase accordingly. Regardless of the structural arrangement, it is sufficient to ensure that the evaporation areas of the two-part evaporation tubes 313 are the same.

Preferably, the two sub-evaporators 31 are mirror images of each other and are disposed only on the inclined walls 105a, 105b. According to the principle of hot air rising and cold air sinking, the amount of cold emitted may be along the left inclined wall 105a to the left side wall, the bottom wall, the inner tank storage area, and finally along the top wall 107, and Along the right inclined wall 105b to the right side wall 103b, the bottom wall, the inner tank storage area, and finally to the top wall 107, a closed cold air exchange loop is formed, and the cooling effect is achieved by natural convection of the cold amount to solve the problem of being arranged in the soft The cold source provided by the evaporator 30 in the freezing compartment 100 is concentrated, resulting in a problem of uneven temperature distribution in various regions in the soft freezing compartment 100.

Correspondingly, the heat exchange plate 311 to which the evaporation tube 313 is attached forms an angle with the plane where the top wall 107 is located and the plane where the left side wall and the right side wall 103b are located, so that the sub-evaporator 31 conforms to the inclined walls 105a, 105b. Settings.

Correspondingly, the angle formed by the heat exchange plate 311 and the plane of the top wall 107 is the same as the first angle α, and the angle between the heat exchange plate 311 and the plane of the left side wall and the right side wall 103b is the same. The two angles β are the same.

Preferably, the evaporation area of the connecting pipe 33 is smaller than the evaporation area of the sub-evaporator 31 to facilitate the formation of a natural convection of the cooling volume in the inner storage space.

In particular, the connecting pipe 33 is disposed on the top wall 107 of the inner casing 10 and disposed adjacent to the open side of the front end of the inner casing 10. It can be understood that, according to the characteristics of the soft freezer compartment 100, when the operator opens the inner liner 10 and takes the article placed inside, the hot air first enters the open side of the front end of the inner liner 10, so the front end is open. The temperature on one side is higher than the temperature on the side farther from the front end of the inner liner 10. The connecting pipe 33 is disposed on the top wall 107 of the inner casing 10, and is disposed near the open end of the inner casing 10, and is provided with a layer of protection for the inner temperature of the inner casing 10 to reduce the temperature difference between the front and rear directions of the inner casing 10. Further, under the action of the evaporator 30, the problem that the temperature difference of each partition of the inner liner 10 is large is solved.

Correspondingly, the connecting pipe 33 can be arranged as a straight pipe. The advantage is that the connecting pipe 33 is the most economical in material production, and the cost can be saved, but at the same time, the evaporation area is also correspondingly minimum; the connecting pipe 33 can also be arranged in a knot, such as a serpentine shape, a square shape. , a variety of structures such as triangles, this structure will use more materials than it is set to a straight tube structure, the cost will increase, but the evaporation area will also increase accordingly.

Referring to Figures 4 and 5, another embodiment of a soft freezer of the refrigeration apparatus of the present invention will be described. Different from the above embodiment, in the present embodiment, the evaporator 30 includes two sub-evaporators 31 arranged in parallel, and the two sub-evaporators 31 are independently disposed on the left inclined wall 105a and the right inclined wall 105b. on. It can be understood that, according to the principle of rising hot air and sinking of cold air, the cooling amount emitted by the evaporator 30 is also reached along the left inclined wall 105a to the left side wall, the bottom wall, and the inner tank. The storage area, finally to the top wall 107; and along the right inclined wall 105b to the right side wall 103b, the bottom wall, the inner tank storage area, and finally to the top wall 107 form a closed cold air exchange loop, which is achieved by natural convection of the cold The cooling effect solves the problem of uneven temperature distribution in each region of the soft freezing compartment 100 due to the concentration of the cold source provided by the evaporator 30 disposed in the soft freezing compartment 100.

Accordingly, the present invention also provides a refrigerating apparatus (not shown) which can obtain the benefits of the soft freezing compartment 100 in the above embodiments by employing the soft freezing compartment 100 of the refrigerating apparatus described in each of the above embodiments. effect. Since no other structure or function of the refrigeration device has been improved, the other structures of the refrigeration device will not be described herein.

It should be understood that, although the description is described in terms of embodiments, the embodiments are not intended to be construed as a single. The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

The detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention, and the equivalents thereof are not departing from the spirit of the invention. The embodiments or modifications are intended to be included within the scope of the present invention.

Claims

A soft freezer for a refrigeration unit comprising:

Liner;

Cooperating with an evaporator on the inner tank;

The inner liner includes a top wall, a bottom wall, a left side wall, a right side wall, a rear wall, and an inclined wall connected to at least one of the top wall and the left side wall, the right side wall, and the rear wall The evaporator is disposed on the inclined wall.
A soft freezing compartment of a refrigerating apparatus according to claim 1, wherein

The inclined wall is a left inclined wall and a right inclined wall connected to the top wall and the left side wall and the right side wall;

The evaporator includes two sub-evaporators arranged in parallel, and the two sub-evaporators are disposed only on the left inclined wall and the right inclined wall.
A soft freezing compartment of a refrigerating apparatus according to claim 1, wherein

The inclined wall is a left inclined wall and a right inclined wall connected to the top wall and the left side wall and the right side wall;

The evaporator includes two sub-evaporators arranged in series, two of the sub-evaporators are disposed only on the left and right inclined walls; and a connecting pipe connecting the two sub-evaporators, the connecting pipe It is disposed on one of the top wall, the bottom wall, the left side wall, the right side wall, and the rear wall.
A soft freezing compartment of a refrigerating apparatus according to claim 2 or 3, wherein

A first angle is formed between the left inclined wall and the right inclined wall and the top wall, and the first angle ranges from 130 degrees to 150 degrees.
A soft freezing compartment of a refrigerating apparatus according to claim 4, wherein

The value of the first angle is 150 degrees.
A soft freezing compartment of a refrigeration apparatus according to claim 5, wherein

A second angle is formed between the left inclined wall and the right inclined wall and the left side wall and the right side wall, and the second angle ranges from 120 degrees to 140 degrees.
A soft freezing compartment of a refrigerating apparatus according to claim 6, wherein

The value of the second angle is 120 degrees.
A soft freezing compartment of a refrigeration apparatus according to claim 5, wherein

The widths of the left and right inclined walls gradually decrease from the opening of the inner tank to the rear wall.
A soft freezing compartment of a refrigerating apparatus according to claim 2 or 3, wherein

The distance from any point on the intersection of the left inclined wall, the right inclined wall and the left side wall and the right side wall to the plane of the top wall is smaller than the distance from the plane of the bottom wall.
A soft freezing compartment of a refrigeration apparatus according to claim 2, wherein

The evaporation zones of the two sub-vapors are the same.
A soft freezing compartment of a refrigerating apparatus according to claim 3, wherein

The evaporation zones of the two sub-vapors are the same, and the evaporation area of the connecting pipe is smaller than the evaporation area of the sub-evaporator.
A refrigeration apparatus comprising the soft freezing compartment of the refrigeration apparatus according to any one of claims 1 to 11.