CN107461986A - Refrigerating device - Google Patents

Abstract

The invention relates to a refrigerating and freezing device, which comprises a box body. A machine room is arranged at the lower part of the rear side of the box body. A compressor for compressing refrigerant and a condenser for heat exchange with air are arranged in the machine room. The machine room has Air inlets and outlets for the airflow to circulate between it and the external environment. The inside of the side plate of the box is provided with at least one first box exhaust channel, and each first box exhaust channel is directly or indirectly communicated with the air outlet of the mechanical room or the air outlet area adjacent to the air outlet, so as to At least part of the hot airflow generated in the mechanical room is introduced into the first box exhaust channel, and the heat in this part of the hot airflow can be fully utilized to increase the temperature of the side plate of the box, which not only makes full use of the heat in the mechanical room, but also effectively To prevent condensation on the side panels of the cabinet. At the same time, the structure of the present invention is relatively simple and easy to implement.

Description

Freezer

technical field

The invention relates to refrigeration and freezing storage technology, in particular to a refrigeration and freezing device.

Background technique

Most of the evaporators and refrigeration pipelines of existing refrigerators are in the foam layer of the box body. When the pipeline is displaced and close to the outside of the box, the cold energy will also be transferred to the outside of the box. Because the air in the environment has a certain humidity, when the temperature outside the refrigerator box reaches the dew point temperature, condensation will appear on the box, especially in the case of excessive air humidity such as thunderstorms in summer, the condensation phenomenon will be more severe. serious. Flowing water appears on the cabinet, which not only affects the user's use, but also may cause the risk of electric shock in severe cases.

The methods for preventing condensation on the side panels of existing refrigerators include: increasing the thickness of the foam layer, allowing a part of the condenser tube to pass through the side panels of the box body, or adding a heating device. Increasing the thickness of the foam layer will reduce the available volume of the compartment and increase the cost; allowing a part of the condenser tube to pass through the side plate of the box will lead to more complicated design and more difficult production; adding a heating device will lead to increased power consumption.

Contents of the invention

An object of the present invention is to overcome at least one defect in the prior art, and to provide a refrigerating and freezing device that is simple in structure, easy to realize and capable of effectively avoiding condensation on the side plate of the box body.

Another object of the present invention is to improve the heat dissipation effect of the machine room.

Yet another object of the present invention is to increase the speed at which the hot air in the machine room is discharged to the outside.

In order to achieve the above object, the present invention provides a refrigerating and freezing device, which includes a box body, a machine room is provided at the lower rear side of the box body, and a compressor for compressing the refrigerant and a compressor for compressing the refrigerant and air are arranged in the machine room. a heat-exchanging condenser, the mechanical compartment having an air inlet and an air outlet for circulation of air flow between it and the external environment; and

The inside of the side plate of the box is provided with at least one first box exhaust channel, and each of the first box exhaust channels is directly or indirectly connected to the air outlet of the mechanical room or adjacent to the air outlet. connected to the air outlet area of the machine room, so as to introduce at least part of the hot air flow generated in the mechanical chamber into the exhaust channel of the first box, and use the heat of the at least part of the hot air flow to prevent condensation on the side plate of the box. dew.

Optionally, the side panels of the box body include two opposite lateral side panels and one rear side panel, each of the side panels is provided with at least one exhaust channel of the first box body.

Optionally, the box body includes a box shell forming its exterior, an inner liner forming its interior, and a foam layer formed between the box shell and the liner; and

The first box exhaust channel is formed between the box shell and the foam layer.

Optionally, the first box exhaust channel is a channel directly punched by the box shell of the box during the preparation process; or

The first box body exhaust channel is a channel reserved for the box body during the foaming process.

Optionally, the first box exhaust channel extends upward from the air outlet of the mechanical room to the top of the box, and the first box exhaust channel tapers from bottom to top .

Optionally, the end port of the first box exhaust channel is exposed to the outside of the box to facilitate the flow of the hot air, and the end of the first box exhaust channel is provided with a filter device, In order to prevent dust or sundries from entering the exhaust passage of the first cabinet.

Optionally, a condensing fan is also provided in the mechanical chamber, and the condensing fan is configured to promote the hot airflow generated in the mechanical chamber to flow to the first box exhaust channel through the air outlet, and to promote the cooling of the external environment. Air enters the mechanical chamber through the air inlet.

Optionally, the refrigerated freezer also includes:

A heat dissipation passage extending upward from the air outlet of the mechanical chamber, so as to discharge part of the hot air flow containing the heat generated by the compressor and the condenser out of the mechanical chamber through the heat dissipation passage, and isolate the hot air flow with the ambient air entering through the air inlet.

Optionally, the box body includes a box shell forming its exterior, an inner liner forming its interior, and a foam layer formed between the box shell and the liner; and

The heat dissipation channel is formed outside the case or the heat dissipation channel is formed between the case and the foam layer.

Optionally, the refrigerated freezer also includes:

The door body arranged on the front side of the box body has a door body exhaust channel inside, and the door body exhaust channel indirectly communicates with the air outlet of the mechanical room or the air outlet area adjacent to the air outlet , so as to introduce part of the hot airflow generated in the mechanical chamber into the door body exhaust passage, and use the heat of at least part of the hot airflow to prevent condensation on the door body.

The designer of the present invention realizes that during the operation of the refrigerating and freezing device, its compressor and condenser will generate a certain amount of heat, which is usually directly discharged from the mechanical room through the air circulation, causing certain waste. Thus, the refrigerating and freezing device of the present invention introduces at least part of the hot air in the mechanical chamber into the first box exhaust channel of the side plate of the box by setting the first box exhaust channel inside the box side plate. Making full use of the heat in this part of the hot air flow to increase the temperature of the side panels of the box not only makes full use of the heat in the mechanical room, but also effectively prevents condensation on the side panels of the box. At the same time, the present invention can solve a series of difficult problems existing in the prior art only by adding a specially designed first box exhaust channel inside the side plate, and the structure is relatively simple and easy to implement.

Further, since the air temperature in the mechanical room is significantly higher than the ambient temperature, and the density of the hot and cold air is different, the hot air rises and the cold air descends. Taking advantage of this feature, the present invention further designs the exhaust channel of the first box body to extend upwards to the top of the box body, which can accelerate the discharge speed of the hot air flow to a certain extent, which is more conducive to the heat dissipation of the mechanical room, and effectively improves the ventilation of the mechanical room. cooling effect.

Further, since the first box exhaust channel tapers from bottom to top, the flow velocity of the hot air in the first box exhaust channel becomes larger and larger, which can promote the hot air to quickly discharge the exhaust channel, thereby It promotes the rapid entry of external ambient air into the mechanical room, improving the heat dissipation effect of the mechanical room and the anti-condensation effect of the side panels of the box.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of a refrigerating and freezing device according to one embodiment of the present invention;

Fig. 2 is a schematic top view of a refrigerator-freezer according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a refrigerating and freezing device according to another embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a refrigerating and freezing device according to a further embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a refrigerating and freezing device according to another further embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a refrigerating and freezing device according to a further embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a refrigerating and freezing device according to yet another embodiment of the present invention;

8(a) to 8(c) are schematic front views of refrigerating and freezing devices according to different embodiments of the present invention.

detailed description

An embodiment of the present invention provides a refrigerating and freezing device. The refrigerating and freezing device can be a common refrigerator, a freezer or other devices with refrigerating or freezing functions, or it can be a built-in refrigerator. A refrigerator embedded in a space with a fixed volume.

Fig. 1 is a schematic structural diagram of a refrigerating and freezing device according to an embodiment of the present invention, and Fig. 2 is a schematic top view of the refrigerating and freezing device according to an embodiment of the present invention. Referring to Fig. 1 and Fig. 2, the refrigerating and freezing device 1 of the present invention comprises a casing 10, and the rear side lower part of the casing 10 is provided with a mechanical chamber 11, and a compressor 90 for compressing the refrigerant and a compressor 90 for compressing the refrigerant and for connecting with air are housed in the mechanical chamber 11. A condenser 80 for heat exchange. When the refrigerating and freezing apparatus 1 is in cooling operation, the compressor 90 itself will generate heat, thereby releasing heat into the machine compartment 11 . The condenser 80 exchanges heat with the air in the machine room 11 to increase the temperature of the air. That is to say, during cooling operation, both the compressor 90 and the condenser 80 generate heat. The machine room 11 has an air inlet 111 and an air outlet 112 for air circulation between it and the external environment, so as to discharge heat in the machine room 11 .

In particular, at least one first box exhaust channel 13 is provided inside the side plate of the box body 10, and each first box body exhaust channel 13 is directly or indirectly connected to the air outlet 112 of the machine room 11 or adjacent to the air outlet. The air outlet area of 112 is connected to introduce at least part of the hot airflow generated in the machine room 11 into the first cabinet exhaust passage 13, and use the heat of the at least part of the hot airflow to prevent condensation on the side plate of the cabinet 10.

The designer of the present invention realizes that during the operation of the refrigerating and freezing device 1, its compressor 90 and condenser 80 will generate a certain amount of heat, which is usually directly discharged from the mechanical room 11 through the air circulation, causing certain waste. Thus, the refrigerating and freezing device 1 of the present invention introduces at least part of the hot air flow in the machine room 11 into the first box exhaust air of the box side plate by setting the first box exhaust passage 13 inside the box side plate. In the channel 13, the heat in this part of the hot air flow can be fully utilized to increase the temperature of the side plate of the box body, which not only makes full use of the heat in the machine room 11, but also effectively prevents condensation on the side plate of the box body. At the same time, the present invention can solve a series of difficult problems existing in the prior art only by adding a specially designed first box air exhaust channel 13 inside the side plate, and the structure is relatively simple and easy to implement.

In some embodiments of the present invention, the side panels of the box body 10 include two opposite transverse side panels and one rear facing side panel, and at least one first box exhaust channel 13 is provided in each side panel. That is to say, each side plate can utilize the heat in the machine room 11 to avoid condensation. When the number of the first box exhaust channel 13 in each side plate is one, it can be arranged at the middle position of the side plate. When there are multiple first cabinet exhaust passages 13 in each side plate, the multiple first cabinet exhaust passages 13 may be evenly distributed inside the side board.

Further, the case body 10 includes a case shell forming its exterior, an inner liner forming its inside, and a foam layer formed between the case shell and the liner. The first case exhaust channel 13 is formed between the case shell and the foam layer. The first box exhaust channel 13 can be a channel formed by direct punching of the box shell of the box 10 during the preparation process, or a channel reserved for the box 10 during the foaming process, which is simple to prepare and easy to implement.

In some embodiments of the present invention, the first cabinet exhaust channel 13 extends upwards from the air outlet 112 of the machine room 11 to the top of the cabinet 10 . Because the air temperature in the mechanical room 11 is obviously higher than the ambient temperature, and the density of the hot and cold air is different, the hot air rises and the cold air descends. Taking advantage of this feature, the present invention further designs the first cabinet exhaust channel 13 to extend upwards to the top of the cabinet 10, which can not only avoid condensation on the side panels of the cabinet, but also accelerate the discharge speed of the hot air to a certain extent. , is more conducive to the heat dissipation of the mechanical room 11, and effectively improves the heat dissipation effect of the mechanical room 11.

Further, the first cabinet exhaust channel 13 tapers from bottom to top. That is, the cross-sectional area of the first cabinet exhaust channel 13 gradually decreases from bottom to top. In other words, the first cabinet exhaust channel 13 is narrow at the top and wide at the bottom. As a result, a chimney effect is formed inside the first cabinet exhaust passage 13, and the flow velocity of the hot air in the first cabinet exhaust passage 13 will become larger and larger, which can prompt the hot air to quickly exit the first cabinet exhaust passage. 13, thus prompting the external ambient air to quickly enter the machine room 11, improving the heat dissipation effect.

Furthermore, the cross-section of the first box exhaust channel 13 may be rectangular, waist-shaped, circular or other suitable shapes capable of reducing air flow resistance.

In some embodiments of the present invention, the end port of the first box exhaust channel 13 is exposed to the outside of the box 10 to facilitate the flow of hot air, and the end of the first box exhaust channel 13 is provided with a filter device, To prevent dust or debris from entering it. In some embodiments, the first cabinet exhaust passage 13 may extend upwards from the air outlet 112 of the machine room 11 or an air outlet area adjacent to the air outlet 112 to the top of the cabinet 10 . In some other embodiments, the first box exhaust channel 13 can also extend to the side of the box body 10 from the air outlet 112 of the mechanical room 11 or the air outlet area adjacent to the air outlet 112, as long as its outlet end is exposed to The outside of the box body 10 is enough.

In some embodiments of the present invention, a condensing fan 70 is also provided in the mechanical room 11, and the condensing fan 70 is configured to promote the hot air flow generated in the mechanical room 11 to flow to the first box exhaust passage 13 through the air outlet 112, and to promote The air from the external environment enters the machine room 11 through the air inlet 111 . The condensing fan 70 can further promote the air flow between the mechanical room 11 and the external environment, so that a certain negative pressure is formed in the mechanical room 11 during the discharge of the hot air in the mechanical room 11, so that the external ambient air can be more smoothly And enter the machine room 11 more quickly, enhance the anti-condensation effect and heat dissipation effect.

Fig. 3 is a schematic structural diagram of a refrigerating and freezing device according to another embodiment of the present invention. Referring to Fig. 3, the refrigerating and freezing device 1 further includes a door body 30 arranged on the front side of the box body 10, and the interior of the frame part of the box body 10 is used to form an airtight seal with the door body 30 when the door body 30 is in a closed state. There is a second casing exhaust passage 14. The outlet end of the second casing exhaust passage 14 is exposed to the outside of the casing 10 from the side of the casing 10, and the inlet end of the second casing exhaust passage 14 is indirectly connected to the air outlet 112 of the machine room 11 or adjacent to the outlet. The air outlet area of the tuyere 112 is connected to introduce part of the hot air flow in the mechanical room 11 into the second box exhaust passage 14, thereby using the heat of this part of the hot air flow to prevent condensation at the frame part and the door frame of the door body 30 , thereby avoiding the occurrence of adhesion between the door body 30 and the box body 10 or even the phenomenon that the door body 30 is difficult to open.

In some embodiments of the present invention, there are multiple door bodies 30 , and the box body 10 is provided with a plurality of second box body exhaust passages 14 corresponding to each door body 30 one-to-one. The second box body exhaust channel 14 may be substantially in the shape of a square ring, so that hot air flows through each section of the frame portion and prevent condensation on any section. Each corner of the second box body exhaust channel 14 is provided with an arc bend to facilitate the flow of air. The second case exhaust passage 14 can communicate with the first case exhaust passage 13 , and can also communicate with the air outlet 112 of the machine room 11 or the air outlet area adjacent to the air outlet 112 through other additional passages.

Specifically, in the embodiment shown in Figure 3, the inside of the box body 10 is also provided with a connecting channel 16 for connecting the second box body exhaust channel 14 and the first box body exhaust channel 13, and the connecting channel 16 is connected to the second box body exhaust channel 13. The position where the box exhaust channel 14 is connected, and the position where the connecting channel 16 is connected to the first box exhaust channel 13 are both arranged in arc-shaped bends to facilitate the flow of air.

In some embodiments of the present invention, when the built-in refrigerator is a refrigerator with side-by-side doors, vertical beams for dividing the space inside the box body 10 into left and right parts are also provided in the box body 10 . An exhaust channel may also be provided in the vertical beam to avoid condensation on the vertical beam. The height and width of the second box body exhaust duct 14 located in the frame on the left and right sides of the vertical beam are all the same, so as to avoid the phenomenon of poor air supply caused by the large resistance on one side, and ensure that the whole frame will not appear single. Different phenomena of hot and cold.

Fig. 4 is a schematic structural diagram of a refrigerating and freezing device according to a further embodiment of the present invention, Fig. 5 is a schematic structural diagram of a refrigerating and freezing device according to another further embodiment of the present invention, and Fig. 6 is a schematic structural diagram of a refrigerating and freezing device according to another further embodiment of the present invention A schematic structural diagram of a refrigerating and freezing device in a further embodiment. The directions of the straight arrows in FIGS. 4 to 6 are the air flow directions in the corresponding passages. In order to avoid too complicated lines, the exhaust passages on the box body 10 are hidden in FIGS. 4 to 6 . When the refrigerating and freezing device 1 is a built-in refrigerator, it is often not enough to dissipate the heat in the machine room 11 only by sending hot air to the exhaust channel of the side plate of the box body. Therefore, in some embodiments of the present invention, the refrigerating and freezing device 1 further includes a cooling passage 20, which extends upwards from the air outlet 112 of the mechanical room 11, so that the heat generated by the compressor 90 and the condenser 80 is absorbed through the cooling passage 20. The hot air flows out of the machine room 11 and isolates the hot air from the ambient air entering through the air inlet 111 .

That is to say, on the starting point of saving space, the present invention additionally arranges the heat dissipation channel 20 communicated with the air outlet 112 of the mechanical room 11 on the built-in refrigerator, so that the heat generated by the compressor 90 and the condenser 80 can be contained. The waste heat air flows out of the machine room 11 through the heat dissipation channel 20 , which can effectively improve the heat dissipation of the machine room 11 without adding additional space for heat dissipation. And, because the air temperature in the mechanical room 11 is obviously higher than the ambient temperature, and the density of the hot and cold air is different, the hot air rises and the cold air descends. Taking advantage of this feature, the present invention designs the heat dissipation channel 20 to extend upwards, which can accelerate the discharge speed of the hot air flow to a certain extent, and is more conducive to the heat dissipation of the mechanical room 11 . At the same time, the present invention can solve a series of difficult problems existing in the prior art only by adding a specially designed cooling channel 20, and the structure is relatively simple and easy to implement.

Further, the heat dissipation passage 20 of the present invention is directly communicated with the air outlet 112, which can isolate the hot air generated in the machine room 11 from the ambient air entering through the air inlet 111, and avoid the flow of the sucked air and the discharged air from the compressor 90 or Cross mixing occurs in the surrounding area of the condenser 80 and even in the entire machine room 11 , resulting in poor heat dissipation, thereby avoiding mixed flow or turbulent flow, and further improving heat dissipation efficiency and heat dissipation effect in the machine room 11 .

Specifically, both the air inlet 111 and the air outlet 112 of the machine room 11 are formed on the side wall thereof. The number of air outlets 112 can be one or more than two. The number of cooling channels 20 may be the same as the number of air outlets 112 . For example, in the embodiment shown in FIG. 4 , the number of air outlets 112 is two, and correspondingly, the number of heat dissipation channels 20 is also two, and the two heat dissipation channels 20 are located on the lateral side and the rear side of the box body 10 respectively. department.

In some embodiments of the present invention, the cooling channels 20 are tapered from bottom to top. That is, the cross-sectional area of the heat dissipation channel 20 gradually decreases from bottom to top. In other words, the cooling channels 20 are narrow at the top and wide at the bottom. As a result, a chimney effect is formed inside the heat dissipation channel 20, and the flow velocity of the hot air in the heat dissipation channel 20 will become larger and larger, which can prompt the hot air to quickly discharge from the heat dissipation channel 20, thereby prompting the external ambient air to quickly enter the mechanical chamber 11. Improved cooling effect.

Further, the cross-section of the cooling channel 20 may be rectangular, waist-shaped, circular or other suitable shapes capable of reducing air flow resistance. In the embodiment of the present invention, the heat dissipation channel 20 is preferably rectangular, so as to reduce the thickness of the refrigerating and freezing device 1 in the front-to-rear direction.

In some embodiments of the present invention, the case body 10 includes a case shell forming its exterior, an inner liner forming its interior, and a foam layer formed between the case shell and the liner. In some embodiments of the present invention, referring to FIG. 5 and FIG. 6 , the cooling channel 20 is formed outside the case. At this time, the heat dissipation channel 20 can be formed by stamping during the preparation process of the box shell, or formed by attaching an independent pipe on the outside of the box shell. In other embodiments of the present invention, referring to FIG. 4 , the heat dissipation channel 20 may be formed between the case shell and the foam layer. At this time, the heat dissipation channel 20 can be used as the first box exhaust channel 13 , which can be formed by stamping during the preparation process of the box shell, or can be reserved and formed during the foaming process of the box body 10 . That is to say, the heat dissipation channel 20 can be formed inside the box body 10 or outside the box body 10 , and the location and manufacturing method are more flexible.

In some embodiments of the present invention, the heat dissipation channel 20 extends upward from the air outlet 112 of the machine room 11 to a height exceeding one-half of the overall height of the box body 10, so as to effectively dissipate the heat in the machine room 11 and avoid discharge. The hot air is sucked into the machine room 11 again.

Specifically, in the embodiment shown in FIG. 6 , the heat dissipation channel 20 is located outside the box body 10 and extends upward from the air outlet 112 of the machine room 11 to two-thirds of the height of the box body 10 . In the embodiment shown in FIG. 5 , the heat dissipation channel 20 is located outside the box body 10 and extends upward from the air outlet 112 of the machine room 11 to the top of the box body 10 . The terminal ports (ie, the top ports) of the heat dissipation channels 20 are exposed to the outside of the box body 10 to facilitate the outflow of hot air, and the ends of the heat dissipation channels 20 are provided with filtering devices to prevent dust or debris from entering the heat dissipation channels 20 . In the embodiment shown in FIG. 4 , the heat dissipation channel 20 is located inside the box body 10 and extends upward from the air outlet 112 of the machine room 11 to the top of the box body 10 . The terminal ports (ie, the top ports) of the heat dissipation channels 20 are exposed to the outside of the box body 10 to facilitate the outflow of hot air, and the ends of the heat dissipation channels 20 are provided with filtering devices to prevent dust or debris from entering the heat dissipation channels 20 . The filter device can be, for example, a filter screen.

Fig. 7 is a schematic structural view of a refrigerating and freezing device according to another embodiment of the present invention, and the direction of the straight arrow in the figure is the direction of the air flow in the corresponding channel. In some embodiments of the present invention, the interior of the door body 30 is provided with a door body exhaust passage 31, and the door body exhaust passage 31 communicates indirectly with the air outlet 112 of the mechanical room 11 or the air outlet area adjacent to the air outlet 112, Part of the hot air generated in the machine room 11 is introduced into the door body exhaust passage 31 , and the heat of the part of the hot air is used to prevent condensation on the door 30 .

Further, a connection channel 17 is provided inside or outside one of the side plates of the box body 10, and the inlet end of the connection channel 17 is directly or indirectly communicated with the air outlet 112 of the machine room 11 or the air outlet area adjacent to the air outlet 112, Its outlet end communicates with the door exhaust channel 31 . Specifically, the connection passage 17 may communicate with the first case exhaust passage 13 , thereby indirectly communicating with the machine room 11 . The door body exhaust channel 31 is indirectly communicated with the machine room 11 through the connecting channel 17 and the first box body exhaust channel 13 in sequence.

An airtight seal is formed between the door exhaust passage 31 and the connecting passage 17 at least when the door 30 is in a closed state. Specifically, when the door body 30 is pivotally connected to the box body 10 , the door body exhaust channel 31 can be airtightly connected with the connecting channel 17 at the pivoting side of the door body 30 through a flexible tube. When the door body 30 is connected to the box body 10 in a push-pull manner, for example, when the door body 30 is used as an end cover of a drawer in the storage space, flexible openings can be provided around the adjacent ports of the door body exhaust passage 31 and the connecting passage 17. The sealing gasket is used to form an airtight seal between the door exhaust channel 31 and the connecting channel 17 when the door body 30 is in a closed state.

In some embodiments of the present invention, the door body 30 is provided with a handle portion 32 that is convenient for the user to open and/or close the door body 30 . The handle part 32 may be a hidden handle, and the thickness of the foam layer corresponding to the hidden handle part 32 is relatively thin, so condensation is more likely to occur. In the present invention, the door body exhaust channel 31 is specially designed so that some sections thereof are adjacently located above, below or behind the handle portion 32 to prevent condensation on the handle portion 32 by utilizing the heat of the hot air flow in the door body exhaust channel 31 .

In some embodiments of the present invention, the inlet end and the outlet end of the door body exhaust channel 31 are respectively located on two opposite sides of the door body 30, and the outlet end of the door body exhaust channel 31 is exposed to the outside of the door body 31 , in order to facilitate the discharge of hot air. The outlet end of the door exhaust channel 31 is provided with a filtering device to prevent dust or sundries from entering the door exhaust channel 31 . Specifically, the filter device may be a filter screen.

8(a) to 8(c) are schematic front views of refrigerating and freezing devices according to different embodiments of the present invention. Further, in the embodiment shown in FIG. 8( a ), the door exhaust passage 31 may be a straight pipe located above or below the handle portion 32 and extending laterally. In the embodiment shown in Fig. 8 (b), the door exhaust passage 31 extends laterally as a whole, and has a horizontal pipe section and an arc-shaped pipe section positioned above or below the handle portion 32, and the arc-shaped pipe section can be arranged as much as possible. The length of the adjacent pipe section between the door exhaust channel 31 and the handle part 32 is increased, so as to better avoid condensation on the handle part 32 . In the embodiment shown in FIG. 8( c ), the air exhaust passage 31 of the door body is a straight pipe located behind the handle portion 32 and extending laterally.

To sum up, during the working process of the refrigerating and freezing device 1, the exhaust air of the mechanical room 11 will pass through the heat dissipation channel 20 and the first box exhaust channel 13 in the box body 10, and then pass into the side panels, frame parts, and vertical beams. and the exhaust air channel reserved in the door body 30, and then blow out from the corresponding ports. The air discharged from the mechanical room 11 is heated by the condenser 80 and the compressor 90, and the temperature is higher than the ambient temperature (about 5°C), so the discharged air will heat the side panels, frame parts, vertical beams and doors of the cabinet, etc. The place where the exhaust air duct passes can prevent condensation on the side panels, frame parts, vertical beams and corresponding positions on the door body of the box body.

Each air exhaust channel and the end port of each heat dissipation channel are equipped with filter devices to prevent dust or foreign matter from entering the channel and causing airflow obstruction or even channel blockage.

Those skilled in the art should understand that "upper", "lower", "inner", "outer", "horizontal", "front", "back" and the like in the embodiments of the present invention are used to indicate orientation or positional relationship The terminology is based on the actual use state of the refrigerating and freezing device 1. These terms are only for the convenience of describing and understanding the technical solution of the present invention, rather than indicating or implying that the referred device or component must have a specific orientation. Therefore, it should not be construed as limiting the invention.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of refrigerating device, including casing, the back lower of the casing is provided with Machine Room, is housed in the Machine Room Have for the compressor of compression refrigerant and the condenser for carrying out heat exchange with air, the Machine Room have for supplying stream In the air inlet and air outlet that it is circulated between external environment condition；And

At least one first casing air exhaust passage is provided with inside the side plate of the casing, each first casing air exhaust passage is equal The directly or indirectly air outlet with the Machine Room or the air-out regional connectivity adjacent to the air outlet, by the Machine Room At least part thermal current caused by interior is introduced into the first casing air exhaust passage, and utilizes the heat of at least part thermal current Amount prevents the side plate of the casing from producing condensation.

2. refrigerating device according to claim 1, wherein

The side plate of the casing includes two horizontal side plates being oppositely arranged and a backward side plate, is all provided with each side plate There is at least one first casing air exhaust passage.

3. refrigerating device according to claim 1, wherein

The casing includes being used to form its outside case shell, inner bag for forming its inside and being formed in the case shell and institute State the foaming layer between inner bag；And

The first casing air exhaust passage is formed between the case shell and the foaming layer.

4. refrigerating device according to claim 3, wherein

The first casing air exhaust passage for the casing case shell in preparation process direct passage made of punching press；Or

The first casing air exhaust passage is that the casing reserves the passage formed in foaming process.

5. refrigerating device according to claim 1, wherein

The first casing air exhaust passage is extended upwardly to the top of the casing, and described by the air outlet of the Machine Room One casing air exhaust passage is tapered along direction from the bottom up.

6. refrigerating device according to claim 1, wherein

The end port of the first casing air exhaust passage is exposed to the outside of the casing, in order to which the thermal current flows out, And the end of the first casing air exhaust passage is provided with filter, to prevent dust or debris from entering the first casing air draft In passage.

7. refrigerating device according to claim 1, wherein

Condensation fan is additionally provided with the Machine Room, the condensation fan is configured to promote caused thermal current in the Machine Room Institute is entered by the air inlet by the air that the air outlet flows to the first casing air exhaust passage and promotes external environment condition State in Machine Room.

8. refrigerating device according to claim 1, in addition to：

Heat dissipation channel, upwardly extended by the air outlet of the Machine Room, so that the compressor will be contained by the heat dissipation channel With the condenser caused by the part thermal current of heat discharge the Machine Room, and completely cut off the thermal current with by the air intake The surrounding air that mouth enters.

9. refrigerating device according to claim 8, wherein

The casing includes being used to form its outside case shell, inner bag for forming its inside and being formed in the case shell and institute State the foaming layer between inner bag；And

The heat dissipation channel is formed to be formed in the case shell and the foaming in the outside of the case shell or the heat dissipation channel Between layer.

10. refrigerating device according to claim 1, in addition to：

Be arranged at the door body of the cabinet front, be internally provided with door body air exhaust passage, the door body air exhaust passage indirectly with The air-out regional connectivity of the air outlet of the Machine Room or the neighbouring air outlet, by caused part heat in the Machine Room Air-flow is introduced into the door body air exhaust passage, and prevents the door body produces from coagulating using the heat of at least part thermal current Dew.