CN107238244A - Horizontal type wind-cooling refrigerating cabinet - Google Patents

Abstract

The invention discloses a horizontal air-cooled refrigeration cabinet, which comprises a horizontal cabinet body and a door body. An evaporation chamber is arranged on the horizontal cabinet body. A fan and an evaporator are arranged in the evaporation chamber. One end of the horizontal cabinet body The end is provided with an end air duct and an air return duct, and the side walls of the horizontal cabinet are provided with a side air duct, and the return air duct is connected to the evaporation chamber; the end air duct and the side outlet The air ducts respectively pass through the air duct connection assembly and the air outlet of the evaporation chamber. The air duct connection assembly includes a connecting air duct and a wind wheel, and the wind wheel is rotatably arranged in the connecting air duct. Realize the uniform cooling distribution of the horizontal air-cooled refrigerator and improve the cooling effect.

Description

Horizontal air-cooled refrigerator

technical field

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

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 chest freezers 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 chest freezers are gradually being promoted. Chinese Patent Nos. 201520524111.2 and 201520611759.3 respectively disclose air-cooled horizontal freezers, and air-cooled refrigeration of the horizontal freezers is realized by setting air outlets and return air outlets. However, due to the large internal volume of the chest freezer, the stored items are piled up inside the freezer, the cold air cannot circulate smoothly in the cabinet, and the cooling capacity distribution in different areas is not balanced, resulting in poor cooling effect. How to design a horizontal air-cooled refrigerator 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 refrigerating cabinet, which realizes uniform cooling capacity distribution of the horizontal air-cooling refrigerating cabinet and improves the cooling effect.

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

A horizontal air-cooled refrigeration cabinet, comprising a horizontal cabinet body and a door body, the horizontal cabinet body is provided with an evaporation chamber, the evaporation chamber is provided with a fan and an evaporator, and the horizontal cabinet body One end of the horizontal cabinet is provided with an end air outlet and an air return duct arranged up and down, and the two side walls of the horizontal cabinet are respectively provided with side air outlets, and the side air outlets are horizontally provided with a first jet The air outlet at the end is provided with a second jet port, and the air outlet directions of the first jet port and the second jet port are arranged alternately; the air return channel is connected to the air inlet of the evaporation chamber , the end air outlet and the side air outlet pass through the air duct connection assembly and the air outlet of the evaporation chamber respectively, the air duct connection assembly includes a connecting air duct and a wind wheel, and the wind wheel The rotatable is arranged in the connecting air duct.

Further, the cross-sectional shape of the connecting air duct matches the outer contour of the wind wheel.

Further, an air guide protrusion is provided on the air inlet side of the wind wheel in the connecting air duct, and the air guide protrusion is formed with an inclined air guide surface inclined toward the wind wheel.

Further, the first jet port and the second jet port are respectively provided with a gravity air curtain assembly, and the gravity air curtain assembly includes a first frame and a first air curtain, and a first air port is formed in the first frame , the upper part of the first air curtain is provided with a first rotating shaft, the first rotating shaft is rotatably installed in the first frame, and the first air curtain is used to block the first air port.

Further, the side air outlet channel is provided with a plurality of first jet openings along its extending direction, and a magnetic control air curtain assembly is arranged in the first jet opening, and the magnetic control air curtain assembly includes a second frame And the second air curtain, the second air port is formed in the second frame, the upper part of the second air curtain is provided with a second rotating shaft, the second rotating shaft is rotatably installed in the second frame, the The second air curtain is used to block the second air port, the lower part of the second air curtain is provided with a permanent magnet, and the second frame is provided with an electromagnet for cooperating with the permanent magnet.

Further, a plurality of temperature sensors are arranged in the horizontal cabinet along the extending direction of the side air outlet, and the temperature sensors are linked with the electromagnets of the magnetic control air curtain assembly at corresponding positions.

Further, the side air outlet and the end air outlet are embedded in the horizontal cabinet.

Further, the bottom of the horizontal cabinet is also provided with a direct cooling evaporator coil.

Further, the return air duct is provided with a plurality of return air openings, and the size of the plurality of return air openings gradually increases from the middle to both sides.

Further, the side air outlet is also provided with an auxiliary air outlet extending downward.

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 cooling distribution of the freezer and improves the cooling effect; at the same time, the side air outlet and the end air outlet are respectively The air duct connecting component is connected to the exhaust port of the evaporator chamber. During the defrosting process of the evaporator, since the fan stops rotating, the wind wheel in the connected air duct will also stop rotating under the action of no wind, so that the wind wheel can It prevents the heat of defrosting from entering the refrigeration cavity of the horizontal cabinet, which can more effectively reduce heat loss and reduce energy consumption.

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 cross-sectional view of the air duct connection assembly in the embodiment of the horizontal air-cooled refrigerator of the present invention;

Fig. 4 is A-A direction sectional view in Fig. 3;

Fig. 5 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. 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 along B-B in Fig. 6;

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

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

Fig. 10 is a sectional view 4 of the embodiment of the horizontal air-cooled refrigerator of the present invention.

detailed description

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.

Embodiment one

As shown in Figures 1-4, the horizontal air-cooled refrigeration cabinet 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 body A fan 10 and an evaporator 3 are provided, and 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 The side air outlet channel 12, the side air outlet channel 12 is horizontally provided with a plurality of first jet ports 121, the end air outlet channel 11 is provided with at least one second jet port 111, and the first jet port 121 and the air outlet direction of the second jet port 111 are arranged alternately; the air return channel 13 communicates with the air inlet of the evaporation chamber, and the end air outlet channel 11 and the side air outlet channel 12 are respectively Through the air duct connection assembly 4 and the air outlet of the evaporation chamber, the air duct connection assembly includes a connecting air duct 41 and a wind wheel 42 , and the wind wheel 42 is rotatably arranged in the connecting air duct 41 .

Specifically, in this embodiment, the horizontal air-cooled refrigeration cabinet is provided with an end air outlet 11 at one end of the horizontal cabinet body 1, and side air outlets 12 are provided on both side walls, so as to realize three-sided air supply, wherein The air outlet direction of the end air duct 11 is towards the other end of the horizontal cabinet body 1, so that the cold air output from the air outlet of the end air duct 11 can cover the entire cross section of the horizontal cabinet body 1, while the side The air outlet direction of the part 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 in the horizontal A vortex airflow is formed inside the cabinet 1, and the vortex airflow can ensure that the longitudinal section of the horizontal cabinet 1 maintains a uniform distribution of cooling capacity, thereby keeping the temperature in the horizontal cabinet 1 uniform as a whole to improve the cooling effect. In order to prevent hot air from flowing into the cooling area of the horizontal cabinet body 1 when the evaporator 3 is defrosting, the end air outlet duct 11 and the side air outlet duct 12 are connected to the air outlet duct 12 through the air duct connection assembly 4 respectively. The air outlet of the evaporation chamber, during the cooling and air supply process, the fan 10 rotates, and the wind blown by the fan 10 drives the wind wheel 42 to rotate, so that the cold air enters the end air outlet 11 and the side air outlet 12 During defrosting, the fan 10 stops running, and the wind wheel 42 will stop rotating under the action of no wind, and the connecting air duct 41 will be blocked and cut off by the wind wheel 42, which can effectively prevent the hot air from defrosting from entering through the air duct. into the refrigeration area of horizontal cabinet 1. Wherein, the cross-sectional shape of the connecting air duct 41 matches the outer contour of the wind wheel 42, which can ensure that the outer contour of the wind wheel 42 is better closely matched with the inner wall of the connecting air duct 41, so that the wind wheel 42 It is better to block the connecting air duct 41. In addition, in the connecting air duct 41, an air guide protrusion is provided on the air inlet side of the wind wheel 42, and the air guide protrusion is formed with an inclined air guide surface 411 inclined toward the wind wheel. Specifically, The wind guide bump makes the cross-sectional area of the connecting air duct 41 located at the wind inlet side of the wind wheel 42 change suddenly, so that the wind speed blowing to the wind wheel 42 can be accelerated, so that the wind wheel 42 can rotate quickly to ensure smooth flow of cold air.

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. The side air outlet 12 is also provided with an auxiliary air outlet 122 extending downward, and the auxiliary air outlet 122 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 1 is also provided with a direct cooling evaporator coil, which can be used for radiation cooling to ensure that the bottom maintains a reasonable cooling temperature, realizes the effect of compound cooling, and further improves Cooling effect.

Further, as shown in FIG. 5 , in order to better insulate heat from entering the refrigeration chamber of the horizontal cabinet 1 during defrosting, the first jet port 121 and the second jet port 111 are respectively provided with gravity wind The curtain assembly 5, the gravity air curtain assembly 5 includes a frame 51 and an air curtain 52, an air opening 511 is formed in the frame 51, a second rotating shaft 521 is arranged on the upper part of the air curtain 52, and the second rotating shaft 521 is rotatable Installed in the frame 51 , the air curtain 52 is used to cover the air outlet 511 . Specifically, in a normal cooling process, the airflow generated by the fan 10 will overcome the weight of the air curtain 52 and blow the air curtain 52 to realize air supply. During the defrosting process of the evaporator 3, the fan 10 stops running, and under the action of gravity, the air curtain 52 will cover the tuyere 511, thereby preventing the heat generated by the defrosting of the evaporator 3 from entering the horizontal cabinet through the air outlet 1, avoid excessive temperature fluctuations in the horizontal cabinet 1 during defrosting, improve the cooling effect more effectively, and at the same time reduce cooling loss to reduce energy consumption. While the frame 51 is installed in the corresponding end air outlet duct 11 and the side air outlet duct 12, the frame 51 can be an independent structural member, or can be connected with the corresponding end air outlet duct 11 and the side air outlet duct. The air outlet duct 12 constitutes an integral structural member.

Similarly, 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 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, a second air port 611 is formed in the second frame 61, and the 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 .

Embodiment two

Based on the first embodiment above, optionally, as shown in Figure 9, the horizontal cabinet body 1 is provided with an organic compartment, the compressor 10 is arranged in the compartment, a water receiving tray 7 is also arranged in the compartment, and the evaporation cavity There is a drainage channel 71 connected to the water receiving tray 7 at the bottom of the bottom, the water receiving tray 7 is also provided with a humidification channel 72 connected to the upper part of the evaporation chamber, the drainage channel 71 is provided with a first valve (unmarked), and the humidification channel 72 is provided with a Second valve (not labeled). Specifically, the evaporation chamber is connected to the water receiving tray 7. During the defrosting process, the first valve is opened, and the frost layer on the evaporator 3 is heated to form defrosting water, and the defrosting water flows into the water receiving tray 7 through the drainage channel 71. During operation, since the air in the horizontal cabinet 1 circulates and flows into the evaporation chamber for cooling, the moisture content of the air in the horizontal cabinet 1 is relatively low. In order to avoid the items in the horizontal cabinet 1 Dehydration and air-drying, at this time, the second valve can be opened, so that the high-humidity air generated by the defrosting water in the water receiving tray 7 enters the evaporation chamber, and is transported to the air supply channel by the fan 10, so that the air can be adjusted The air humidity in the horizontal cabinet body 1 reduces or avoids dehydration and air-drying of articles, and improves the cooling effect. In order to accurately control the switch of the second valve, a humidity sensor (not shown) is provided in the air supply channel, the return air channel 13 or the evaporation chamber, and the humidity sensor is linked with the second valve. When the humidity value is detected to be out of the set range When inside, control the second valve to open. Wherein, in order to obtain sufficient high-humidity air, the water receiving tray 7 is located on the upper part of the compressor 10; and/or, the water receiving tray 7 is provided with an electric heating wire. In addition, the moisture outlet of the humidification channel 72 faces the fan 10 , so that high-humidity air can quickly enter the air supply channel to humidify the articles in the horizontal cabinet 1 . 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 bottom of the side air outlet channel 12 is provided with a second air outlet 122 for downward air outlet, and the first air outlet 121 Separated from the second air outlet 122 by a partition 123, the first air outlet 121 is used to impact the air outlet of the end air outlet 11, while the second air outlet 122 is used to directly flow into the lower space of the chest freezer 1 Conveying cooling capacity to further improve the uniformity of cooling capacity distribution.

When defrosting, due to the air-cooled refrigeration method, the frost layer is formed on the evaporator. During the defrosting process, the evaporator opens the first valve to collect the defrosting water in the water receiving tray, which will not damage the horizontal cabinet. The items in the body are affected, and it is convenient to clean up the frost; at the same time, the second valve can be opened according to the need, so that the water vapor generated by the defrosting water in the water tray enters the evaporation cavity and is input from the air supply channel to the horizontal cabinet according to the cold air In this way, the humidity in the horizontal cabinet can be kept within the set range, and the items in the horizontal cabinet can be prevented from being air-dried due to lack of moisture, so that the cooling capacity of the freezer can be evenly distributed and the cooling effect and user experience can be improved.

Embodiment three

Based on the first embodiment above, optionally, as shown in Figure 10, the horizontal cabinet body 1 is provided with an organic compartment, in which a compressor 10 is provided, and a drainage channel 71 connected to the water receiving tray 7 is provided at the bottom of the evaporation chamber. , the drainage channel 71 is provided with a drain valve (unmarked), and the return air channel 13 is also connected with a bypass air channel 8 for communicating with the evaporation chamber. The switch valve (not marked) of the return air channel 13 and the bypass channel 8, the bypass channel 8 is connected with an air drying module 81, and the horizontal cabinet 1 is provided with a humidity sensor (not shown) linked with the switch valve. Specifically, in order to facilitate defrosting and reduce user operations, the evaporation chamber is connected to the water receiving tray 7. During the defrosting process, the drain valve is opened, and the frost layer on the evaporator 3 is heated to form defrosting water. The defrosting water passes through the drainage channel 71 flows into the water receiving tray 7. And when the humidity in the horizontal cabinet body 1 is too high, the wind path between the return air passage 13 and the evaporation chamber is closed by switching the valve, and the air path between the bypass air passage 8 and the evaporation chamber is opened. The air is input into the evaporation cavity through the bypass channel 8, and the air drying module in the bypass channel 8 can effectively remove the moisture in the air to achieve the purpose of reducing humidity. Wherein, the air drying module 81 may be a desiccant disposed in the bypass channel 8; or, the air drying module 81 may be an electrolyzed water device. An auxiliary valve (not shown) linked with the humidity sensor is also provided at the connection between the bypass channel 8 and the evaporation chamber. In addition, the humidity sensor can also be arranged in the return air channel 13 and on the air intake side of the switching valve, so that the humidity in the horizontal cabinet 1 can be detected more accurately, so as to perform effective humidity regulation.

During defrosting, due to the air-cooled refrigeration method, the frost layer is formed on the evaporator. During the defrosting process, the evaporator opens the drain valve to collect the defrosting water in the water receiving tray, which will not damage the horizontal cabinet. It is convenient to clear the frosting; at the same time, when the humidity sensor in the horizontal cabinet detects that the humidity value exceeds the set value, the return air channel is closed by switching the valve to return air to the evaporation chamber and the bypass air channel is opened. The return air in the horizontal cabinet enters the evaporation chamber from the bypass channel, and after the return air is processed by the air drying module in the bypass channel, it can effectively reduce the moisture content of the air, thereby reducing the humidity in the horizontal cabinet, so that It can ensure that the humidity in the horizontal cabinet is kept within the set range, avoid damage to the items in the horizontal cabinet due to excessive humidity, realize uniform cooling distribution of the freezer, and improve the cooling effect and user experience.

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 (10)

1. a kind of Horizontal type wind-cooling refrigerating cabinet, including horizontal cabinet and door body, it is characterised in that be provided with steaming on the horizontal cabinet Send out in cavity, the evaporation cavity and be provided with blower fan and evaporator, the one end of the horizontal cabinet is provided with what is arranged up and down End exhaust passage and air -return duct, the two side of the horizontal cabinet are respectively arranged with sidepiece exhaust passage, sidepiece exhaust passage water Flat to be provided with the first jet orifice, the end exhaust passage is provided with the second jet orifice, and first jet orifice and described second are penetrated The air-out direction of head piece is staggered；The air -return duct connects the air inlet of the evaporation cavity, the end exhaust passage and institute Sidepiece exhaust passage is stated respectively by air channel connection component and the exhaust outlet of the evaporation cavity, and the air channel connection component includes connecting Give a dinner for a visitor from afar and wind wheel, the wind wheel is spindle rotationally arranged in the connection air channel.

2. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that the cross sectional shape in the connection air channel and institute The outline for stating wind wheel matches.

3. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that be located at the wind wheel in the connection air channel Inlet side be provided with wind-guiding projection, the wind-guiding projection is formed with towards the inclined inclination wind-guiding face of the wind wheel.

4. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that first jet orifice and described second is penetrated Head piece is respectively arranged with drainage wind curtain component, and the drainage wind curtain component includes the first framework and the first air curtain, first frame The first air port is formed in frame, the top of first air curtain is provided with first rotating shaft, and the first rotating shaft is rotatably arranged on In first framework, first air curtain is used to block first air port.

5. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that the sidepiece exhaust passage extends along direction It is disposed with multiple first jet orifices, first jet orifice and is provided with magnetic control air curtain component, the magnetic control air curtain component Including the second framework and the second air curtain, the second air port is formed in second framework, the top of second air curtain is provided with Two rotating shafts, second rotating shaft is rotatably arranged in second framework, and second air curtain is used to block described second Air port, the bottom of second air curtain is provided with permanent magnet, and second framework is provided with for coordinating with the permanent magnet Electromagnet.

6. Horizontal type wind-cooling refrigerating cabinet according to claim 5, it is characterised in that go out in the horizontal cabinet along the sidepiece Air channel bearing of trend is disposed with the magnetic control air curtain component of multiple temperature sensors, the temperature sensor and corresponding position The electromagnet linkage.

7. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that the sidepiece exhaust passage and the end go out Air channel is embedded in the horizontal cabinet.

8. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that the bottom of the horizontal cabinet is additionally provided with Directly cooling evaporator coil pipe.

9. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that the air -return duct is provided with multiple return air Mouthful, the size of multiple return air inlets is become larger from centre to both sides.

10. Horizontal type wind-cooling refrigerating cabinet according to claim 1, it is characterised in that the sidepiece exhaust passage be additionally provided with to The auxiliary exhaust passage of lower extension.