CN112556269B - Horizontal air-cooled refrigerator - Google Patents

Abstract

The invention discloses a horizontal air-cooled refrigerator which comprises a horizontal cabinet body and a door body, wherein an air return duct is arranged at one end part of the horizontal cabinet body, the air return duct is provided with a plurality of air return ports, and the size of the middle air return port is smaller than that of the air return ports at two sides. The air return duct is provided with a plurality of air return ports, and the size of the middle air return port is smaller than that of the air return ports on the two sides, so that air circulation on the two sides is ensured, and temperature uniformity is improved.

Description

Horizontal air-cooled freezer

technical field

The invention relates to refrigeration equipment, in particular to a horizontal air-cooled refrigerator.

Background technique

At present, refrigeration equipment (refrigerators, freezers, etc.) are commonly used electrical appliances in people's daily life, and freezers are divided into horizontal freezers and vertical freezers, and horizontal freezers are widely used because of their large storage capacity. Conventional horizontal refrigerators usually use direct cooling for refrigeration, but during use, the cabinet is prone to frost. In order to reduce frost inside the cabinet, air-cooled horizontal refrigerators are gradually being promoted. Chinese Patent Nos. 201520524111.2 and 201520611759.3 respectively disclose air-cooled horizontal refrigerators, and realize air-cooled refrigeration of the horizontal refrigerators by setting air outlets and return air outlets. However, due to the large internal volume of the cabinet of the horizontal refrigerator, the stored items are piled up inside the refrigerator, the cold air cannot circulate smoothly in the cabinet, and the cooling capacity distribution in different regions is not balanced, resulting in poor cooling effect. How to design an air-cooled freezer with uniform cooling capacity distribution and good cooling effect is the technical problem to be solved by the present invention.

Contents of the invention

The invention provides a horizontal air-cooled refrigerator, which ensures air circulation on both sides and improves temperature uniformity.

In order to achieve the above-mentioned technical purpose, the present invention adopts the following technical solutions to realize:

A horizontal air-cooled refrigerator, comprising a horizontal cabinet body and a door body, the horizontal cabinet body is provided with an evaporation chamber, one end of the horizontal cabinet body is provided with a return air duct, and the return air duct Connected to the air inlet of the evaporation chamber, the air return channel is provided with a plurality of air return ports, and the size of the middle return air port is smaller than the size of the return air ports on both sides;

One end of the horizontal cabinet is provided with an end air outlet, and the end air outlet is connected to the air outlet of the evaporation chamber, and the end air outlet is along the other side of the horizontal cabinet. One side wall extends toward the other side wall, and the cold air output from the air outlet of the end air duct can cover the entire cross section of the horizontal cabinet;

The two side walls of the horizontal cabinet are respectively provided with side air outlets, the side air outlets are connected to the air outlet of the evaporation chamber, and the side air outlets are arranged along the extending direction. Multiple air outlets;

The air outlet directions of the air outlets of the side air outlets and the air outlets of the end air outlets are arranged alternately, so that a vortex air flow is formed inside the horizontal cabinet.

Further, the size of the plurality of return air outlets gradually increases from the middle to both sides.

Further, each air return port has a first length in the depth direction of the cabinet, and the multiple first lengths gradually become larger from the middle to both sides.

Further, the plurality of return air outlets are distributed symmetrically about the center.

Further, the multiple return air outlets are parallel to each other.

Further, a fan and an evaporator are arranged in the evaporation chamber.

Further, one end of the horizontal cabinet body is provided with the end air outlet duct and the air return duct arranged up and down.

Compared with the prior art, the advantages and positive effects of the present invention are: the return air duct is provided with multiple return air outlets, and the size of the middle return air outlet is smaller than the size of the return air outlets on both sides, so as to ensure the air circulation on both sides and improve the temperature uniformity .

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a cross-sectional view one of an embodiment of a horizontal air-cooled refrigerator of the present invention;

Fig. 2 is the second cross-sectional view of the embodiment of the horizontal air-cooled refrigerator of the present invention;

Fig. 3 is a partially enlarged schematic diagram of area A in Fig. 1;

Fig. 4 is a schematic structural view of the gravity air curtain assembly in the embodiment of the horizontal air-cooled refrigerator of the present invention;

Fig. 5 is B-B direction sectional view among Fig. 4;

Fig. 6 is a schematic structural view of the magnetic control air curtain assembly in the embodiment of the horizontal air-cooled refrigerator of the present invention;

Fig. 7 is a sectional view to C-C in Fig. 6;

Fig. 8 is a partially enlarged schematic diagram of area D in Fig. 7;

Fig. 9 is a third cross-sectional view of the embodiment of the horizontal air-cooled refrigerator of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1-3, the horizontal air-cooled refrigerator of this embodiment includes a horizontal cabinet body 1 and a door body 2. The horizontal cabinet body 1 is provided with an evaporation chamber, and the evaporation chamber is provided with There is a fan 4 and an evaporator 3, one end of the horizontal cabinet body 1 is provided with an end air outlet duct 11 and an air return duct 13 arranged up and down, and the two side walls of the horizontal cabinet body 1 are respectively provided with side The end air outlet 12, the end air outlet 11 and the side air outlet 12 are respectively connected to the air outlet of the evaporation chamber, and the return air passage 13 is connected to the air inlet of the evaporation chamber The air outlet direction of the air outlet of the side air outlet duct 12 and the air outlet air outlet direction of the end air outlet duct 11 are set alternately.

Specifically, the horizontal air-cooled refrigerator in this embodiment is provided with an end air outlet 11 at one end of the horizontal cabinet body 1, and a side air outlet 12 is provided on both side walls, so as to realize air supply from three sides, wherein, The air outlet direction of the end air outlet duct 11 is toward the other end of the horizontal cabinet body 1, so that the cold air output from the air outlet of the end air outlet duct 11 can cover the entire cross section of the horizontal cabinet body 1, while the side part The air outlet direction of the air outlet channel 12 and the air outlet direction of the end air outlet channel 11 are arranged alternately, and the wind output from the side air outlet channel 12 impacts the wind output from the end air outlet channel 11, so that the horizontal cabinet A vortex airflow is formed inside the body 1, and the vortex airflow can ensure that the longitudinal section of the horizontal cabinet body 1 maintains a uniform cooling capacity distribution, thereby making the temperature in the horizontal cabinet body 1 uniform as a whole to improve the cooling effect. Wherein, the end air outlet duct 11 and the side air outlet duct 12 are located below the cabinet mouth of the horizontal cabinet body 1, using the principle that the cold air naturally sinks, the end air outlet duct 11 and the side air outlet duct 12 The cold air output from the side air outlet channel 12 re-enters the evaporation cavity from the lower return air channel 13 after sinking through heat exchange. In addition, the size of the air outlet of the side air outlet channel 12 increases gradually along the direction of the air flow inside the side air outlet channel 12, while the air return channel 13 is provided with a plurality of air return ports, and the size of the plurality of air return ports It gradually becomes larger from the middle to both sides to ensure wind circulation on both sides and improve temperature uniformity. Alternatively, as shown in FIG. 9 , the side air outlet 12 is also provided with an auxiliary air outlet 14 extending downward, and the auxiliary air outlet 14 can also be used to supply air to the bottom of the horizontal cabinet 1 . At the same time, the bottom of the horizontal cabinet body 1 is also provided with a direct-cooling evaporator coil 10, which can be used for radiative cooling to ensure that the bottom maintains a reasonable cooling temperature and achieve the effect of compound cooling. Improve the cooling effect. Preferably, the side wall of the side air outlet channel 12 is provided with a first air outlet 121 for horizontal air outlet, and the lower part of the side air outlet channel 12 is provided with a second air outlet 122 for downward air outlet. The first air outlet 121 and the second air outlet 122 are separated by a partition 13, the first air outlet 121 is used to impact the air outlet of the end air outlet 11, and the second air outlet 122 is used to directly blow air into the horizontal refrigerator. The lower space of 1 transports cooling capacity, which further improves the uniformity of cooling capacity distribution.

Further, as shown in Figure 4 and Figure 5, the end air outlet duct 11 and the side air outlet duct 12 are respectively connected to the air outlet of the evaporation chamber through the gravity air curtain assembly 5; The curtain assembly 5 includes a first frame 51 and a first air curtain 52. A first air opening 511 is formed in the first frame 51. A first rotating shaft 521 is arranged on the upper part of the first air curtain 52. The first rotating shaft 521 Rotatably installed in the first frame 51 , the first air curtain 52 is used to cover the first air port 511 . Specifically, in a normal cooling process, the airflow generated by the fan 4 will overcome the weight of the first air curtain 52 and blow open the first air curtain 52 to realize air supply. During the defrosting process of the evaporator 3, the fan 4 stops running, and under the action of gravity, the first air curtain 52 will cover the first tuyere 511, thereby preventing the heat generated by the defrosting of the evaporator 3 from entering the air outlet through the air outlet. In the horizontal cabinet 1, excessive temperature fluctuations in the horizontal cabinet 1 during the defrosting process can be avoided, the cooling effect can be improved more effectively, and at the same time, the loss of cooling capacity can also be reduced to reduce energy consumption. The first frame 51 is installed in the corresponding end air outlet channel 11 and the side air outlet channel 12 , or the first frame 51 is installed in the air outlet of the evaporation chamber. The first frame 51 can be an independent structural member, or can form an integral structural member with the corresponding end air outlet channel 11 and the side air outlet channel 12 .

Furthermore, as shown in Figures 6-8, in order to more effectively improve the uniformity of cooling capacity distribution, the side air outlet duct 12 is arranged with a plurality of air outlets along its extending direction, each of the side air outlets The air outlet of the air duct 12 is provided with a magnetically controlled air curtain assembly 6, the magnetically controlled air curtain assembly 6 includes a second frame 61 and a second air curtain 62, and a second air port 611 is formed in the second frame 61, so The upper part of the second air curtain 62 is provided with a second rotating shaft 621, the second rotating shaft 621 is rotatably installed in the second frame 62, and the second air curtain 62 is used to block the second air port 611 , the lower part of the second air curtain 62 is provided with a permanent magnet 63 , and the second frame 61 is provided with an electromagnet 64 for cooperating with the permanent magnet 63 . Specifically, the structural form of the magnetically controlled air curtain assembly 6 is similar to that of the gravity air curtain assembly 5. The difference is that the permanent magnet 63 and the electromagnet 64 are used to cooperate to realize the switch of the electronically controlled second air curtain 62 and the opening angle of the second air curtain 62. , wherein, a plurality of temperature sensors (not shown) are arranged in the horizontal cabinet body 1 along the extending direction of the side air outlet duct 12, and the temperature sensors and the magnetic control air curtain assembly at the corresponding positions The electromagnet 64 of 6 is linked. Specifically, the temperature sensors at different positions are linked with at least one magnetically controlled air curtain assembly 6 at the corresponding position. When the temperature sensor detects that the temperature is higher than the set value, the electromagnet 64 The repulsive force is applied to the permanent magnet 63, thereby increasing the opening angle of the second air curtain 62; otherwise, the electromagnet 64 applies a small repulsive force or attractive force to the permanent magnet 63, so that the opening angle of the second air curtain 62 becomes larger. Little even closes the second air curtain 62. In order to facilitate the installation of the permanent magnet 63 and the electromagnet 64, the second frame 61 is formed with a stepped surface 612 for positioning the second air curtain 62 around the periphery of the second tuyere 611, and the electromagnet 64 is embedded in In the step surface 612 .

Compared with the prior art, the advantages and positive effects of the present invention are: by setting the side air outlets on the two side walls of the horizontal cabinet respectively, and setting the end air outlets at one end of the horizontal cabinet , the air outlet direction of the side air outlet and the air outlet direction of the end air outlet are set alternately, the cold air blown by the end air outlet can cover the entire cross-section of the horizontal cabinet, and the principle of sinking of the air-conditioning is used It can make the cooling capacity sink down, and at the same time, the cold air blown out of the side air duct can make the air flow in the horizontal cabinet form a vortex, so as to ensure that the cooling capacity is evenly distributed on the longitudinal section of the horizontal cabinet, and in the matching bottom The return air duct realizes the air circulation in the horizontal cabinet, makes the temperature distribution in the horizontal cabinet uniform, realizes the uniform distribution of the cooling capacity of the refrigerator and improves the cooling effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A horizontal air-cooled refrigerator is characterized by comprising a horizontal cabinet body and a door body, wherein an evaporation cavity is arranged on the horizontal cabinet body, an air return channel is arranged at one end of the horizontal cabinet body and is communicated with an air inlet of the evaporation cavity, the air return channel is provided with a plurality of air return ports, and the size of the middle air return port is smaller than that of the air return ports at two sides;

an end air outlet channel is arranged at one end part of the horizontal cabinet body and is communicated with an air outlet of the evaporation cavity, the end air outlet channel extends along one side wall of the horizontal cabinet body to the direction of the other side wall, and cold air output from an air outlet of the end air outlet channel can cover the whole cross section of the horizontal cabinet body;

the two side walls of the horizontal cabinet body are respectively provided with a side air outlet channel, the side air outlet channels are communicated with the air outlet of the evaporation cavity, and the side air outlet channels are provided with a plurality of air outlets along the extending direction of the side air outlet channels;

the air outlet direction of the air outlet of the side air outlet channel and the air outlet direction of the air outlet of the end air outlet channel are arranged in a staggered mode, so that vortex airflow is formed inside the horizontal cabinet body.

2. The horizontal air-cooled refrigerator according to claim 1, wherein the plurality of air returns are gradually increased in size from the middle to both sides.

3. The horizontal air-cooled refrigerator according to claim 2, wherein each of the return air openings has a first length in a depth direction of the cabinet, and the first lengths are gradually increased from a middle portion to both sides.

4. The horizontal air-cooled refrigerator according to claim 1, wherein the plurality of air return openings are arranged in a central symmetrical manner.

5. The horizontal air-cooled refrigerator according to claim 1, wherein the plurality of air returns are parallel to each other.

6. The horizontal air-cooled refrigerator according to claim 1, wherein a fan and an evaporator are disposed in the evaporation cavity.

7. The horizontal air-cooled refrigerator according to claim 1, wherein the end air outlet duct and the air return duct are vertically arranged at one end of the horizontal cabinet.

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