WO2019120171A1

WO2019120171A1 - Refrigerating and freezing device

Info

Publication number: WO2019120171A1
Application number: PCT/CN2018/121515
Authority: WO
Inventors: 何胜涛; 徐同; 李春阳; 苗建林
Original assignee: 青岛海尔股份有限公司
Priority date: 2017-12-22
Filing date: 2018-12-17
Publication date: 2019-06-27
Also published as: CN109959197B; CN109959197A

Abstract

A refrigerating and freezing device, comprising: a casing (10); a compression chamber (100), disposed below the rear of the casing (10) and used for mounting a compressor (101) and a cooling fan (102); a bottom condenser (103), disposed in the compressor chamber (100) and configured to be located upstream of the air supply path of the cooling fan (102); and at least one side condenser (105), disposed inside of at least one side wall of the casing (10). The bottom front side of the compression chamber (100) has a lateral opening to allow air to flow into or out of the compression chamber (100); the cooling fan (102) is configured to draw air into the compression chamber (100) by means of at least a portion of the lateral opening (106) and to allow the air to flow sequentially over the bottom condenser (103), the cooling fan (102), and the compressor (101), and then flow out by way of at least a portion of the lateral opening (106). The side condenser (105) is disposed in parallel with the bottom condenser (103) and is configured to be optionally controlled to run so as to cool a refrigeration system simultaneously with the bottom condenser (103). By means of providing the side condenser, it is possible to provide an additional auxiliary cooling path for the refrigeration system when necessary, thereby ensuring stable operation of the refrigeration system.

Description

Refrigerated freezer

Technical field

The invention relates to the technical field of refrigeration equipment, and in particular to a refrigeration and refrigeration device.

Background technique

Refrigerated freezer devices generally have a certain volume. When a household refrigerating and freezing device, such as a refrigerator, is placed in a restaurant, a kitchen, etc., it will protrude outward from the wall, which is disadvantageous for saving space and beautifying the appearance. At present, in order to make the indoor environment beautiful and save space, the embedded refrigerator is usually used as a part of the kitchen or the restaurant. It is usually installed in the cabinet or the wall. It is easy to use and optimize the indoor space, but the airflow in the cabinet or the wall is easily blocked. The system is difficult to ventilate, which reduces the ventilation and heat dissipation effect of the refrigerator, and can not meet the performance of the embedded refrigerator.

Summary of the invention

It is an object of the present invention to provide a refrigerating and freezing apparatus having a good ventilation and heat dissipation effect.

In particular, the present invention provides a refrigerating and freezing apparatus comprising: a casing defining a storage compartment therein; and a compressor compartment disposed below the rear of the casing to install a compressor and a cooling fan, and compressing The machine is configured to be located downstream of the cooling fan air supply path; the bottom condenser is disposed in the compressor chamber and configured to be located upstream of the cooling fan air supply path; and at least one side condenser is disposed at least one of the cabinet Inside the side wall;

The bottom side of the compressor compartment has a lateral opening to allow air to flow into or out of the compressor compartment;

The cooling fan is configured to draw air into the compressor block via at least a portion of the lateral opening and cause it to flow sequentially through the bottom condenser, the cooling fan, and the compressor, and then exit through at least a portion of the lateral opening;

The side condenser is disposed in parallel with the bottom condenser and is configured to be optionally controlled to dissipate heat from the refrigeration system simultaneously with the bottom condenser.

Optionally, the refrigerating and freezing device further comprises: a blower disposed in the compressor chamber and located downstream of the cooling fan air supply path and the compressor, configured to accelerate the flow of air to the accelerating air from the at least part of the lateral opening into the compressor chamber; among them

The transverse opening is defined by a gap between the bottom support plate of the compressor block and the rear wall panel of the casing; and the blower is configured such that its air supply opening is disposed toward at least a portion of the lateral opening to cause the air flowing out of the compressor block to continue to flow forward .

Optionally, the refrigerating and freezing device further comprises: a temperature sensor disposed on the bottom condenser to detect the temperature thereof; wherein

The blower is configured to controllably initiate forced cooling of the compressor compartment when the temperature of the bottom condenser is greater than the ambient temperature exceeding a predetermined first difference.

Optionally, the refrigerating and freezing device further comprises: a ventilation duct disposed in the bottom space of the box on the front side of the blower, and a rear end thereof extending rearward to interface with the air blowing port of the air blower; wherein the air duct is configured to have a rearward direction The front gradually increasing cross-sectional area is such that the air flowing out of the compressor compartment is gradually diffused forward.

Optionally, the distance between the bottom of the ventilation duct and the ground is greater than 10 mm.

Optionally, the refrigerating and freezing device further comprises: a windshield partition disposed at a lateral intermediate position of the bottom of the box body and extending rearward from the front portion of the bottom wall of the box body to the rear end of the bottom portion of the box body in the front-rear direction to The bottom area of the box is divided into left and right parts, and the air in the two parts is prevented from directly performing gas exchange;

The blower and the ventilation duct are integrally located on the same side of the windshield in the lateral direction.

Optionally, the side condenser is configured to be controlled to operate when the ambient temperature is less than or equal to a preset upper threshold to assist in cooling the refrigeration system.

Optionally, the side condenser is configured to be placed in parallel with the bottom condenser through the control valve and operated simultaneously with the bottom condenser by controlled communication of the control valve to collectively dissipate heat from the refrigeration system.

Optionally, the refrigerating and freezing device has a free heat dissipation mode and an embedded heat dissipation mode;

When the refrigerating and freezing device is operated in the free cooling mode, the side condenser is controlled to operate when the ambient temperature is less than or equal to a preset first upper threshold;

When the refrigerating and freezing device operates in the embedded heat dissipation mode, the side condenser is controlled to operate when the ambient temperature is less than or equal to a preset second upper threshold; and the first upper threshold is less than the second upper threshold.

Optionally, the refrigerating and freezing device further comprises: at least three distance sensors, wherein the three distance sensors are respectively disposed on the left side, the right side and the rear side of the box to respectively detect the refrigerating and freezing device and the two sides and the rear side thereof The distance between the wall and / or the cabinet;

When the distance between the refrigerating and freezing device and the wall and/or the cabinet on both sides thereof is less than or equal to the first distance, and the distance between the refrigerating and freezing device and the wall and/or the cabinet at the rear side thereof is less than or equal to At the second distance, the refrigerating and freezing device operates in a heat dissipation mode;

When the distance between the refrigerating and freezing device and the wall and/or the cabinet on both sides thereof is greater than the first distance, or the distance between the refrigerating and freezing device and the rear wall and/or the cabinet is greater than the second distance The refrigerating and freezing device operates in a free cooling mode.

The refrigerating and freezing device of the present invention sequentially forms a bottom condenser, a cooling fan and a compressor in a flow direction of the heat dissipating airflow in the compressor compartment, thereby forming a heat dissipating area at the bottom of the refrigerating and freezing apparatus, in a manner of embedding in the refrigerating and freezing apparatus When the side of the circumference is surrounded by a wall or a cabinet, the refrigeration system can dissipate heat through the bottom heat dissipation area to ensure stable operation of the refrigeration system.

Optionally, the refrigerating and freezing device of the present invention can provide an additional auxiliary heat dissipation path for the refrigeration system when necessary by providing a side condenser, so that the refrigerating and freezing device realizes simultaneous cooling of the side condenser and the bottom condenser, thereby further improving refrigeration. The heat exchange efficiency of the refrigeration unit heat exchange system ensures the stable operation of the refrigeration system.

Optionally, the refrigerating and freezing device of the present invention is provided with a blower at the downstream end of the heat dissipating air passage in the bottom heat dissipating region, thereby forming a heat dissipating air path for accelerating heat dissipation of the bottom condenser and the compressor, and is provided at the end of the air path to the compressor The forced air blower outside the warehouse is used to actively heat the compressor and the bottom condenser in the compressor compartment to enhance the ventilation and heat dissipation effect.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic front view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

2 is a schematic rear view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 3 is a schematic side view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 4 is a schematic side view of a refrigerating and freezing apparatus according to another embodiment of the present invention;

Figure 5 is a schematic schematic diagram of a refrigeration system in accordance with another embodiment of the present invention;

Figure 6 is a schematic plan view showing a structure of a compressor compartment and a tank bottom of a refrigerating and freezing apparatus according to still another embodiment of the present invention;

7 is a schematic flow chart of a blower control method of a refrigerating and freezing apparatus according to an embodiment of the present invention;

8 is a schematic flow chart of a blower control method of a refrigerating and freezing apparatus according to another embodiment of the present invention;

9 is a schematic flow chart of a blower control method of a refrigerating and freezing apparatus according to still another embodiment of the present invention;

10 is a schematic flow chart of a control method for determining a mounting state of a refrigerating and freezing apparatus according to an embodiment of the present invention;

11 is a schematic flow chart of a control method for determining a mounting state of a refrigerating and freezing apparatus according to another embodiment of the present invention;

12 is a schematic flow chart of a control method for a refrigerator to operate in an embedded heat dissipation mode according to an embodiment of the present invention;

13 is a schematic flow chart of a control method for a refrigerator to operate in its own heat dissipation mode according to an embodiment of the present invention;

14 is a schematic flow chart of a control method of a refrigerator operating in an embedded heat dissipation mode according to another embodiment of the present invention.

Detailed ways

1 is a schematic front view of a refrigerating and freezing apparatus 1 according to an embodiment of the present invention. 2 is a schematic rear view of the refrigerating and freezing apparatus 1 according to an embodiment of the present invention, in which a part of the box back plate is hidden at the bottom to show the internal structure thereof. 3 is a schematic side perspective view of a condenser and a duct in which a portion of the side panels of the cabinet are hidden to show the internal structure thereof, in accordance with one embodiment of the present invention.

Referring to FIGS. 1 through 3, the refrigerating and freezing apparatus 1 may generally include a tank 10 and a compressor compartment 100. A storage compartment is defined in the casing 10. The storage room can be set to multiple according to requirements. The storage compartment may have a forward opening that allows for the retrieval of items from or from the storage compartment. The refrigerating and freezing apparatus 1 may also have a plurality of door bodies for rotatably opening or closing the forward opening of the storage compartment from a lateral side or both sides of the casing 10. The compressor cartridge 100 may be disposed below the rear portion of the casing 10 to mount a refrigeration device such as the compressor 110. The refrigerating and freezing apparatus 1 may be an embedded refrigerator in which at least a refrigerating compartment and a freezing compartment are defined, and the refrigerating and freezing apparatus 1 is configured to be fitted into the wall and/or the cabinet in an embedded manner, and allows the cabinet 10 to be The sides and back are close to the wall and / or cabinet.

It will be understood by those skilled in the art that for embedded refrigerators, the term "close" as used herein means that ventilation may not be reserved between the sides and the back of the refrigerator cabinet 10 and the surrounding wall and/or cabinet. Space, the spacing between the sides and back of the refrigerator cabinet 10 and the surrounding wall and/or cabinet can be as small as possible while ensuring that the refrigerator cabinet 10 can be placed into the embedded space. Of course, the refrigerating and freezing apparatus 1 can also be disposed in a relatively empty space that is unobstructed on the circumference side. Accordingly, when the refrigerating and freezing apparatus 1 is in a different state (the occluded embedded or unobstructed free standing type), the refrigerating and freezing apparatus 1 can respectively operate different heat dissipating modes to dissipate heat for its refrigerating system.

Referring to FIGS. 2 to 5, the refrigerating and freezing apparatus 1 has a compression refrigeration system and includes a refrigeration device such as a compressor 101, a cooling fan 102, a condenser, and an evaporator 500. Specifically, the compressor 101 and the cooling fan 102 may both be disposed inside the compressor block 100, and the compressor 101 may be disposed downstream of the cooling fan 102 air supply path. The bottom front side of the compressor cartridge 100 has a lateral opening 106 to allow air to flow into or out of the compressor cartridge 100 from the front lower portion of the compressor cartridge 100. In particular, the condenser may include a bottom condenser 103 and a side condenser 105. The bottom condenser 103 may be disposed within the compressor block 100 and in communication with the compressor 101. The bottom condenser 103 can be configured to be located upstream of the air supply path of the cooling fan 102 to dissipate heat from the refrigeration system. The side condensers 105 may be one or more and may be disposed within at least one side wall of the tank 10 and configured to be selectively controlled to assist in cooling the refrigeration system if necessary. In some embodiments of the present invention, the side condensers 105 may be two and disposed in the left and right side walls of the casing 10, respectively, to enhance the heat dissipation effect.

Referring to Figure 5, in some embodiments of the invention, the side condenser 105 is configured to be placed in parallel with the bottom condenser 103 through a control valve and is operated simultaneously with the bottom condenser 103 by controlled communication of the control valve to Cooling the cooling system.

That is, the side condenser 105 can provide an additional auxiliary heat dissipation path for the refrigeration system when necessary, so that the refrigerating and freezing device 1 realizes simultaneous cooling of the side condenser 105 and the bottom condenser 103, and further improves the refrigerating and freezing device 1 The heat dissipation effect and heat exchange efficiency of the thermal system ensure stable operation of the refrigeration system.

The refrigerating and freezing apparatus 1 of the present invention sequentially sets the bottom condenser 103, the cooling fan 102, and the compressor 101 in the flow direction of the heat radiating airflow in the compressor compartment 100, thereby forming a heat dissipating area at the bottom of the refrigerating and freezing apparatus 1 to be refrigerated. When the freezing device 1 is disposed in an embedded manner at a position surrounded by a wall or a cabinet on the circumference side, the refrigeration system can dissipate heat through the bottom heat dissipating region to ensure stable operation of the refrigeration system. Further, when necessary, the refrigerating and freezing device 1 can also perform auxiliary heat dissipation through the side condenser 105 to further improve the heat dissipation effect and heat exchange efficiency of the refrigeration system.

4 is a schematic side view of a refrigerating and freezing apparatus in which a part of a compressor side panel and a cabinet side panel are hidden to show an internal structure thereof according to another embodiment of the present invention. Figure 6 is a schematic plan view of a compressor cartridge and a tank bottom structure of a refrigerating and freezing apparatus according to still another embodiment of the present invention, wherein a plurality of arrows show the flow direction of the heat radiating airflow.

Referring to Figures 4 and 6, in some embodiments of the invention, the refrigerated freezer 1 may further include a blower 104. The blower 104 may be disposed within the compressor block 100 and located downstream of the cooling fan 102 air supply path and the compressor 101. That is, the cooling fan 102 is configured to draw air into the compressor block 100 via at least a portion of the lateral opening 106 and cause it to flow sequentially through the bottom condenser 103, the cooling fan 102, and the compressor 101 in a lateral direction to the blower 104. The blower 104 then accelerates the flow of air to it that has exchanged heat with the refrigeration unit from at least a portion of the lateral opening 106 out of the compressor block 100.

In the present embodiment, referring to FIG. 6, the cooling fan 102 and the blower 104 are respectively disposed on both sides of the compressor 101, and the bottom condenser 103 and the compressor 101 are disposed on both sides of the cooling fan 102, respectively. Therefore, each of the refrigerating devices is disposed at least adjacent to one of the fans, and at the end of the flow path of the dissipating airflow is provided with a heat exchanger gas flow which is specially heated to cause the heat exchange between the compressor and the refrigerating device to be accelerated. The blower 104 is configured to ensure that the peripheral side of each of the refrigerating devices continuously has flowing cooling air, and the blower 104 can force the fan to flow out of the compressor bin 100 after the heat dissipating heat to achieve active forced heat dissipating, thereby further enhancing the compressor. The overall heat dissipation efficiency of the interior of the silo 100 can significantly improve the heat dissipation effect and heat exchange effect of the refrigeration system, especially when the refrigerating and freezing apparatus 1 is disposed in an embedded manner at a position on the side of the enclosure.

In some embodiments of the invention, the compressor cartridge 100 may be configured to extend in a lateral direction and be located at a lower rear portion of the refrigerated freezer 1. Accordingly, the tank 10 defining the storage compartment may be recessed inwardly at the rear lower portion thereof to allow the compressor compartment 100 to be disposed at the recess, and the front surface of the compressor compartment 100 and the rear surface of the casing 10 There may be gaps between them to allow airflow through.

In still other embodiments of the present invention, referring to Fig. 5, the front surface of the compressor cartridge 100 may also be in direct contact with the rear surface of the casing 10, or be the same surface to make the structure of the refrigerating and freezing apparatus 1 more compact. At this time, the front end of the bottom support plate 107 of the compressor cartridge 100 may form a gap with the front surface of the compressor cartridge 100, that is, the rear surface of the casing 10, to allow airflow therethrough. Further, the air outlet deflector of the blower 104 can also extend directly from the transverse opening 106 to the compressor housing 100 and forwardly to the bottom of the housing 10 to direct and cause the cooling airflow to accelerate forward out of the compressor housing 100.

That is, the lateral opening 106 may be defined by a gap between the bottom support plate 107 of the compressor compartment 100 and the rear wall panel of the casing 10, and may be configured to be continuous from the left end of the front end of the support plate 107 at the bottom of the compressor casing 100. Extend to the right end. Thereby, air can enter and exit the compressor compartment 100 from the front side of the bottom of the compressor compartment 100 along any position laterally of the compressor compartment 100.

In some embodiments of the invention, the bottom condenser 103 may be configured to be disposed adjacent to the lateral opening 106 and may have an angle of inclination to cover most of the area of the front side of the inlet end of the cooling fan 102.

The cooling fan 102 is configured to cause air in the compressor block 100 to flow laterally from the end where the bottom condenser 103 is located toward the side where the compressor 101 is located, thereby causing the bottom condenser 103 to have a lower airflow pressure and to be more easily inhaled. air. Further, since the cooling fan 102 draws in and blows air in the lateral direction inside the compressor casing 100, a large amount of outside air can be prevented from bypassing the bottom condenser 103 and directly entering the cooling fan 102 from the lateral opening 106 on the front side of the bottom of the compressor casing 100. Further, a small portion of the air entering the compressor block 100 via the lateral opening 106 adjacent the cooling fan 102 may also supplement the heat flow that has flowed through the bottom condenser 103, enhancing its subsequent heat dissipation effect on the compressor 101. The heat dissipation airflow after the heat exchange can also flow out of the compressor compartment 100 at any position of the lateral opening 106, which is equivalent to increasing the area of the air inlet and the air outlet of the compressor compartment 100, promoting the flow of the heat dissipation airflow, and improving the heat dissipation efficiency.

In some embodiments, the blower 104 is configured such that its air vent 104a is disposed toward at least a portion of the lateral opening 106 to cause air flowing out of the compressor ram 100 to continue to flow forward. That is, the cooling fan 102 and the blower 104, which are respectively located on both sides of the compressor 101, have different air outlet directions, and the cooling fan 102 is configured to urge air to flow through the condenser and the compressor 101 in the lateral direction of the compressor casing 100. The blower 104 is configured to blow the air inside the compressor compartment 100, thereby ensuring that the heat dissipation airflow is continuously formed in the compressor compartment 100 while avoiding mutual interference between the two during the suction and air supply, so that the compressor compartment The heat dissipation airflow in 100 is more stable and uniform, and the heat dissipation effect is better.

The refrigerating and freezing apparatus 1 of the present invention is configured to sequentially dissipate heat from the bottom condenser 103 and the compressor 101 by sequentially providing the bottom condenser 103, the cooling fan 102, the compressor 101, and the blower 104 in the air supply direction of the compressor compartment 100. a heat-dissipating air passage is provided, and a blower 104 that blows air to the outside of the compressor compartment 100 is disposed at an end of the air passage to actively perform forced heat dissipation to the compressor 101 and the bottom condenser 103 in the compressor compartment 100 to be in the refrigerator-freezer 1 When in the state of embedded setting, the refrigeration system has higher heat exchange efficiency and ensures stable operation of the refrigeration system.

In some embodiments, the refrigerated freezer 1 further includes a temperature sensor 1030. A temperature sensor 1030 can be placed on the bottom condenser 103 to detect its temperature. Temperature sensor 1030 can be located in the middle of bottom condenser 103 to obtain a more accurate temperature of bottom condenser 103. Further, the blower 104 can be configured to controllably initiate forced cooling of the compressor cartridge 100 when the temperature of the bottom condenser 103 is greater than the ambient temperature exceeds a predetermined first difference. At this time, the bottom condenser 103 can only obtain effective heat dissipation under the action of the cooling fan 102, and the opening of the air blower 104 can effectively accelerate the high temperature air to flow out of the compressor chamber 100, thereby preventing the compressor 101 or the condenser from being generated due to excessive temperature. malfunction.

That is, when the heat exchange efficiency of the refrigeration system satisfies the refrigeration effect required by the refrigerating and freezing apparatus 1, and the temperature in the compressor compartment 100 is relatively low, the blower 104 may not be turned on, and only the cooling fan 102 dissipates the bottom condenser 103. To save energy and reduce noise. Specifically, the first difference ΔT ₁ may be any temperature value between 7 ° C and 13 ° C, and may be, for example, a temperature value of 7 ° C, 8 ° C, 9 ° C, 10 ° C, 11 ° C, 12 ° C or 13 ° C. .

Further, the air blower 104 may be further configured to stop the operation when the temperature of the bottom condenser 103 drops to a difference from the ambient temperature by less than a preset second difference ΔT ₂ , and only accelerate the bottom heat dissipation area by the cooling fan 102. Ventilation and heat dissipation to save energy and reduce noise. Specifically, the second difference ΔT ₂ may be slightly lower than the first difference ΔT _{1 by} 2° C. to 4° C. to prevent the blower 104 from being repeatedly opened and closed. The second difference ΔT _{2 may} specifically be, for example, any temperature value between 5 ° C and 10 ° C, for example, a temperature value of 5 ° C, 6 ° C, 7 ° C, 8 ° C, 9 ° C, 10 ° C or 11 ° C. When it is to be noted, the selection of the second difference ΔT ₂ above needs to be determined according to the selection of the first difference ΔT ₁ . If the first difference ΔT ₁ is 10° C., the second difference ΔT ₂ can only be lower than Other values at 10 °C. Preferably, the second difference may be lower than the first difference by 3 ° C, for example, when the first difference ΔT ₁ is 10 ° C, the second difference ΔT ₂ may be 7 ° C.

In some embodiments, the blower 104 can also be activated in advance. Specifically, when the refrigerating and freezing apparatus 1 starts cooling, the cooling fan 102 is configured to start operation after the compressor 101 has been operated for the first starting time, and the blower 104 is configured to start operation after the cooling fan 102 has been operated for the second starting time. Specifically, the first start time and the second start time may be any value between 1 min and 3 min. For example, 1 min, 2 min or 3 min, etc. The first start time and the second start time may be the same or different.

That is, the blower 104 can be started together with the refrigeration system of the refrigerating and freezing apparatus 1, and the forced exhaust heat of the compressor compartment 100 is performed at the same time. In this case, the compressor 101 and the cooling fan 102 blower 104 can be configured to be sequentially activated in a delayed manner to avoid meaningless operation and reduce energy consumption and noise while ensuring ventilation and heat dissipation.

In some embodiments of the present invention, when the refrigerating and freezing apparatus 1 stops cooling, the blower 104 may also stop therewith without waiting for the bottom condenser 103 to cool down. Specifically, the blower 104 may be configured to cease operation after the first stop time of the compressor 101 is stopped, and the cooling fan 102 is configured to stop operating after the blower 104 stops operating for the second stop time.

Specifically, the first stop time and the second stop time may be any value between 0.2 min and 0.6 min. For example, 0.2 min, 0.3 min, 0.4 min, 0.5 min or 0.6 min, and the like. The first stop time and the second stop time may be the same or different.

That is, after the compressor 101 is stopped, the blower 104 can be stopped first after continuing to blow for a short time. The cooling fan 102 can be stopped after a short period of time after the blower 104 is stopped. The heat (hot air) generated by either the compressor 101 or the bottom condenser 103 is relatively easy to flow out of the compressor block 100 due to the lateral opening 106 extending transversely through the compressor block 100. Further, when the compressor 101 is shut down, the heat generated in the compressor compartment 100 is limited, and the airflow in the compressor compartment 100 can be satisfied only by the cooling fan 102 of the lateral blowing, and the blown air can be directly exported from the lateral direction. Distribute out. Thus, the heat dissipation requirement of the compressor block 100 at this time can be satisfied without continuously running the blower 104 that is blown outwardly substantially perpendicular to the lateral outlet.

Of course, if the blower 104 is stopped, the temperature of the compressor compartment 100 does not decrease significantly. The blower 104 can also be activated again based on the difference between the bottom condenser 103 and the ambient temperature to accelerate heat dissipation.

Referring to FIG. 6, in some embodiments, the refrigerated freezer 1 further includes a venting duct 200. The ventilation duct 200 is disposed in the bottom space of the casing 10 on the front side of the blower 104, and its rear end extends rearward to interface with the air supply port 104a of the air blower 104. The ventilation duct 200 may be configured to have a cross-sectional area that gradually increases from the rear to the front to allow the air flowing out of the compressor silo 100 to gradually diffuse forward.

That is, the ventilation duct 200 can guide the cooling airflow blown by the blower 104 to accelerate out of the compressor compartment 100, but the speed of the heat-dissipating airflow just before exiting the compressor compartment 100 into the ventilation duct 200 is greater than the speed at which it will flow out of the ventilation duct 200. . Specifically, the ventilation duct 200 is disposed such that its cross-sectional area near the blower 104 is smaller than its cross-sectional area near the front end of the refrigerating and freezing apparatus 1, thereby facilitating the outflow and diffusion of the heat-dissipating airflow to avoid standing on the front side of the refrigerating and freezing apparatus 1. The user clearly feels that there is airflow at the bottom.

In some embodiments, the distance between the bottom of the venting duct 200 and the ground is greater than 10 mm to avoid rubbing against the ground.

Referring to Figures 1 and 6, in some embodiments of the invention, the refrigerated freezer 1 may further include a windshield spacer 300. The windshield spacer 300 may be disposed at a lateral intermediate position of the bottom of the casing 10, and extends rearward from the front portion of the bottom wall of the storage compartment to the rear end of the bottom of the casing 10 to extend the bottom of the casing 10. The area is divided into left and right parts, and the air in the two parts is prevented from directly exchanged gas. The blower 104 and the ventilation duct 200 are integrally located on the same side of the windshield spacer 300 in the lateral direction. It should be noted that the lateral intermediate position of the bottom of the casing 10 includes, but is not limited to, the middle position of the casing 10.

The cooling fan 102 can be configured to be located substantially directly behind the windshield 300. The bottom condenser 103 can occupy the other side of the windshield 300 in the lateral direction, thereby reducing the possibility of air bypassing the condenser into the cooling fan 102 by the guidance of the windshield 300.

In the present embodiment, the windshield partition 300 divides the space on the front side of the compressor compartment 100 at the bottom of the refrigerating and freezing apparatus 1 into two parts, which are respectively guided to guide the air to at least part of the lateral opening 106. The wind zone and the air flowing out of the compressor compartment 100 are directed to a guided air outlet zone in the external environment. Further, the guiding air inlet region and the guiding air outlet region are separated from each other only by the windshield spacer 300, and the heat dissipation airflow that has completed the heat exchange is prevented from flowing back to the side where the bottom condenser 103 is located. Due to the corresponding arrangement of the cooling fan 102 and the blower 104 inside the compressor compartment 100, neither the guiding air inlet region nor the circumferential side of the guiding air outlet region can form a cooling airflow without providing a shielding or guiding structure, which simplifies the refrigeration and freezing device 1 External structure.

In some embodiments of the present invention, the windshield spacer 300 may be composed of a heat insulating material to avoid heat exchange of different temperature heat radiating air flowing on both sides thereof through the windshield spacer 300, thereby affecting the heat dissipation effect.

In some embodiments of the invention, the refrigerated freezer 1 may have a temperature sensor that detects the ambient temperature. Further, the side condenser 105 can be configured to be controlled to operate when the ambient temperature is less than or equal to a preset upper threshold to assist in cooling the refrigeration system. Specifically, the upper limit threshold may be any temperature value between 30 ° C and 40 ° C to avoid problems such as excessive opening of the side condenser 105 causing excessive ambient temperature. The ambient temperature is the air temperature in the room where the refrigerating and freezing system 1 is located (generally in the user's home). Specifically, a temperature sensor may be disposed in the hinge box of the refrigerating and freezing apparatus 1 for opening and closing the box door of the cabinet 10 to obtain a real-time ambient temperature, particularly an ambient temperature of a region closer to the refrigerating and freezing apparatus 1.

In some embodiments of the present invention, the refrigerating and freezing apparatus 1 has a free heat dissipation mode and an embedded heat dissipation mode, and is switchable between the two heat dissipation modes depending on the position at which it is disposed. In particular, when operating the refrigeration apparatus 1 of the refrigerating free cooling mode, a condenser-side unit 105 at ambient temperature is less than or equal to a predetermined first upper threshold value T ₁ is controlled to run. When the refrigerating and freezing apparatus 1 is operated in the embedded heat dissipating mode, the side condenser 105 is controlled to operate when the ambient temperature is less than or equal to the preset second upper threshold T ₂ . Specifically, the first upper limit threshold T _{1 is} smaller than the second upper limit threshold T ₂ . That is, the first upper limit threshold T ₁ may be any value between 30 ° C and 35 ° C. The second upper limit threshold T ₂ may be any value between 36 ° C and 40 ° C.

Since the space on the circumference side allows the user to come into contact with the side wall of the case 10 when the refrigerating and freezing apparatus 1 is in the free standing state, the first upper limit threshold T _{1 is} set to be at least lower than the body temperature guarantee box. The side temperature of the body 10 is always within a safe range, thereby ensuring that the user does not feel uncomfortable due to high temperature when being in the vicinity of the refrigerating and freezing apparatus 1 and in contact with the cabinet 10, thereby improving user comfort. In addition, when the refrigerating and freezing device 1 is in the embedded installation state, the superheated side temperature also affects the heating of the wall or closet in which it is embedded, causing discoloration or deformation of the wall or closet. Thereby, a safe temperature, that is to say a second upper limit threshold T ₂ , is also provided accordingly. The embedded mounting position causes the side wall temperature of the refrigerating and freezing device 1 to have a small influence on the ambient temperature, so the second upper limit threshold T ₂ can be correspondingly higher than the first upper limit temperature threshold T ₁ .

In some embodiments of the invention, the refrigerated freezer 1 may also include at least three distance sensors 400. Specifically, referring to FIGS. 2 and 3, three distance sensors 400 may be respectively disposed on the left side, the right side, and the rear side of the case 10 to respectively detect the refrigerating and freezing apparatus 1 and the wall on both sides and the rear side thereof. And / or the distance between the cabinets. Specifically, one side distance sensor 400 may be installed near the door of the refrigerating and freezing apparatus 1, such as near the hinge box of the door body. Another side distance sensor 400 can be disposed at a lower portion of the side panel, such as near the compressor compartment 100. The rear side distance sensor 400 can be attached to a position where the back plate of the casing 10 of the refrigerating and freezing apparatus 1 is close to the middle.

In some embodiments of the present invention, when the distance between the refrigerating and freezing device 1 and the wall and/or the cabinet on both sides thereof is less than or equal to the first distance D ₁ , and the refrigerating and freezing device 1 is located at the rear side wall thereof When the distance between the body and/or the cabinet is less than or equal to the second distance D ₂ , the refrigerating and freezing apparatus 1 operates in the heat dissipation mode.

When the distance between the refrigerating and freezing device 1 and the wall and/or the cabinet on both sides thereof is greater than the first distance D ₁ , or the distance between the refrigerating and freezing device 1 and the wall and/or the cabinet at the rear side thereof is greater than At the second distance D ₂ , the refrigerating and freezing apparatus 1 operates in a free heat dissipation mode.

That is, only when there is occlusion on both sides and the rear portion, the refrigerating and freezing apparatus 1 is judged to be in an embedded state, and is radiated in an embedded heat dissipation mode. When one side or back of the refrigerating and freezing device 1 is far enough away from the wall or the cabinet, it can be regarded as being in a free standing mode and dissipating heat in a free heat dissipation mode. Thereby, the influence of the long-term operation of the side condenser 105 on the ambient temperature is reduced, and the possibility that the user is uncomfortable due to the temperature of the casing 10 being too high when the user picks up or moves the article or moves to touch the refrigerating and freezing apparatus 1 is eliminated.

Specifically, the first distance D ₁ may be any value between 8 mm and 12 mm, and may be, for example, 8 mm, 9 mm, 10 mm, 11 mm, or 12 mm, or the like. The second distance D ₂ may be any value between 12 mm and 17 mm, and may be, for example, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, or 17 mm. In some preferred embodiments of the invention, the first distance D ₁ may be set to 10 mm and the second distance D ₂ may be correspondingly set to be greater than 15 mm of the first distance D ₁ . That is, the size of the space on the side of the refrigerating and freezing apparatus 1 is prioritized to ensure that the temperature of the side condenser 105 does not affect the comfort of the user.

In other embodiments, the heat dissipation mode of the refrigerating and freezing apparatus 1 may also be selected by the user through the control input after the refrigerating and freezing apparatus 1 completes the installation placement.

The invention also provides a control method for a refrigerating and freezing device, which is suitable for controlling ventilation and heat dissipation of the refrigerating and freezing device by using appropriate ventilation and heat dissipation modes under different operating states.

Referring to Fig. 7, the control method may include a judgment as to whether or not the refrigerating and freezing device needs to use a trigger condition of the air blower.

Specifically, the following steps may be included:

In step S200, the refrigerating and freezing device starts to cool and operates in any heat dissipation mode.

Step S202, controlling the compressor and the bottom condenser to start operation, and controlling the cooling fan to start running.

Step S210, determining whether the bottom condenser temperature is higher than the ambient temperature exceeds the first difference ΔT ₁ ; if yes, executing step S212; if not, returning to step S202.

In step S212, the blower is controlled to start running.

Step S214, determining whether the bottom condenser temperature falls below the ambient temperature by less than the second difference ΔT ₂ ; if yes, executing step S216; if not, returning to step S212.

The start-up operation in step S212 also includes the hold operation when the blower is already in the running state. The blower can be configured to controllably initiate forced cooling of the compressor cartridge only when the temperature of the bottom condenser is greater than the ambient temperature exceeds a predetermined first difference ΔT ₁ . At this time, the bottom condenser can not be effectively dissipated under the action of the cooling fan. The opening of the blower can effectively accelerate the high-temperature air to flow out of the compressor compartment, and prevent the compressor or the condenser from malfunctioning due to excessive temperature.

Further, when the heat exchange efficiency of the refrigeration system satisfies the refrigeration effect required by the refrigerating and freezing device, and the temperature in the compressor chamber is relatively low, the blower may not be turned on, and the bottom condenser is only dissipated by the cooling fan to save energy. Reduce noise. Further, the second difference ΔT ₂ for determining the blower closing condition may be slightly lower by 2 ° C to 4 ° C than the first difference ΔT _{1 for} determining the opening thereof to avoid repeated opening and closing of the blower.

Referring to Fig. 8, the control method can also control the early start of the blower to enhance the ventilation and heat dissipation effect of the refrigerating and freezing device. Specifically, the following steps may be included:

In step S300, the refrigeration system of the refrigerating and freezing device is turned on, and the forced heat dissipation function is turned on.

In step S302, the compressor is started.

Step S304, determining whether the compressor has run the first startup time; if yes, executing step S306; if not, returning to step S302.

In step S306, the cooling fan is started.

Step S308, determining whether the cooling fan has run the second startup time; if yes, executing step S310; if not, returning to step S306.

In step S310, the air blower is started.

Wherein, if the compressor or the cooling fan is already in the startup operation state, step S302 and step S306 may also include the maintenance operation state accordingly. Further, the first start time and the second start time may be any value between 1 min and 3 min. For example, 1 min, 2 min or 3 min, etc. The first start time and the second start time may be the same or different.

Thereby, the blower can be controlled to be started together with the refrigeration system of the refrigerating and freezing device, and the compressor casing is subjected to forced ventilation and heat dissipation. In this case, the compressor and the cooling fan blower can be configured to be delayed in sequence to avoid insignificant operation and reduce energy consumption and noise while ensuring ventilation and heat dissipation.

In addition, referring to Fig. 9, when the refrigerating and freezing device stops cooling, the blower can also be stopped to reduce the energy consumption. Specifically, the following steps may be included:

In step S400, the refrigeration system is turned off.

In step S402, the compressor is controlled to stop running.

Step S404, determining whether the compressor has stopped the first stop time; if yes, executing step S406; if not, returning to step S402.

In step S406, the blower is controlled to stop running.

Step S408, determining whether the air blower has stopped the second stop time; if yes, executing step S410; if not, returning to step S406.

In step S410, the cooling fan is controlled to stop running.

Wherein, if the compressor or the blower is already in the stop state, steps S402 and S406 may correspondingly include maintaining the stop state. Further, the first stop time and the second stop time may be any value between 0.2 min and 0.6 min. For example, 0.2 min, 0.3 min, 0.4 min, 0.5 min or 0.6 min, and the like. The first stop time and the second stop time may be the same or different.

Thus, when the compressor is stopped, the blower can be stopped first after continuing to blow for a short period of time. The cooling fan can be stopped after a short period of time after the blower has stopped. The heat generated by both the compressor and the bottom condenser (hot air) is easier to flow out of the compressor compartment due to the lateral opening through the compressor casing. Further, when the compressor is stopped, the heat generated in the compressor chamber is limited, and only the cooling fan blown by the lateral blowing causes the air in the compressor chamber to flow to meet the heat dissipation requirement, and the blown air can be directly discharged from the lateral outlet. Thus, the heat dissipation requirement of the compressor block at this time can be satisfied without continuously running the blower that is blown outwardly substantially perpendicular to the lateral outlet.

If the blower is stopped, the temperature of the compressor compartment does not drop significantly. The blower can also be restarted according to the control method of step S210 to step S214 to enhance the heat dissipation effect of the compressor compartment.

Referring to Fig. 10, the control method may include a judgment of the installation position of the refrigerating and freezing apparatus. Specifically, the following steps may be included:

In step S100, the operation of the refrigerating and freezing device is started.

Step S106, controlling the rear distance sensor to detect whether the distance between the refrigerating and freezing device and the rear covering is smaller than the second distance; if yes, executing step S108; if not, executing step S112.

Step S108, the distance sensors on both sides of the control device detect whether the distance between the refrigerating and freezing device and the left and right side coverings is less than the first distance; if yes, step S110 is performed; if not, step S112 is performed.

Step S110, controlling the refrigerating and freezing device to enter the embedded heat dissipation mode.

Step S112, controlling the refrigerating and freezing device to enter a free heat dissipation mode.

Specifically, the first distance D ₁ may be any value between 8 mm and 12 mm, and the second distance D ₂ may be greater than the first distance D ₁ to any value between 12 mm and 17 mm.

That is, when the refrigerating and freezing device is restarted for the first time or after each power failure, it is detected whether there is occlusion on the rear side and both sides to confirm the heat dissipation mode that should be operated.

The control method ensures that the refrigerating and freezing device is judged to be in an embedded state only when there is occlusion on both sides and the rear portion of the refrigerating and freezing device, and the heat is dissipated in the embedded heat dissipating mode. When one side or back of the refrigerating and freezing device is far enough away from the wall or cabinet, it can be considered to be in a free standing mode and dissipate heat in a free cooling mode. Thereby, the influence of the long-term operation of the side condenser on the ambient temperature is reduced, and the possibility that the user is uncomfortable due to the temperature of the case is too high when the user picks up or moves the article or moves to touch the refrigerating and freezing device.

Referring to FIG. 11, in some embodiments of the present invention, the control method may further include the following steps before step S106:

Step S102, keeping the refrigerating and freezing device continuously running the current heat dissipation mode;

In step S104, it is determined whether there is 24 hours from the last distance detection; if yes, step S106 is performed; if not, returning to step S102 is continued.

That is, it is detected whether the refrigerating and freezing device moves the position every 24 hours to determine whether there is occlusion on both sides and the rear. As a result, multiple distance detecting sensors do not need to be continuously operated, saving energy consumption and prolonging their service life.

Referring to Figures 12 and 13, the control method of the present invention further includes a determination of whether or not the refrigeration condition of the refrigerating and freezing apparatus requires the use of a side condenser in different heat dissipation modes. Specifically, referring to FIG. 12, when the refrigerating and freezing device is in the embedded heat dissipation mode, the control method may include the following steps:

In step S200, the refrigerating and freezing device starts to cool and operates in the embedded heat dissipation mode.

Step S204, it determines whether the ambient temperature is less than the second upper threshold T _2; if yes, step S206 is performed; if not, step S208.

In step S206, the side condenser is activated to perform auxiliary heat dissipation.

In step S208, the side condenser is stopped.

Step S210, determining whether the bottom condenser temperature is higher than the ambient temperature exceeds the first difference; if yes, executing step S212; if not, returning to step S202.

In step S212, the blower is controlled to start running.

Step S214, determining whether the bottom condenser temperature falls below the ambient temperature by less than the second difference; if yes, executing step S216; if not, returning to step S212.

Specifically, the second upper limit threshold T ₂ may be any value between 36 ° C and 40 ° C. For example, 36 ° C, 37 ° C, 38 ° C, 39 ° C or 40 ° C. Thus, when the refrigerated freezer is in the embedded mounted state, the overheated side temperature can affect the heating of the wall or closet it is embedded in, causing the wall or closet to discolor or deform. By setting the second upper threshold as the safe temperature, the temperature of the outer surface of the refrigerating freezer that is in contact with the wall or closet at the side is prevented from being too high. Preferably, the second upper threshold T ₂ can be set to 40 ° C to obtain an optimal heat dissipation effect.

Referring to FIG. 13, when the refrigerating and freezing device is in the free cooling mode, the control method may include the following steps:

Step S204, it determines whether the ambient temperature is less than a first upper threshold T _1; if yes, step S206 is performed; if not, step S208.

In step S208, the side condenser is stopped.

In step S212, the blower is controlled to start running.

Specifically, the first upper limit threshold T ₁ may be any value between 30 ° C and 35 ° C. For example, 30 ° C, 31 ° C, 32 ° C, 33 ° C, 34 ° C or 35 ° C. Preferably, the first upper limit threshold T ₁ can be set to 33 ° C to ensure that the user does not feel discomfort due to high temperature when being in the vicinity of the refrigerating and freezing device and in contact with the box, thereby improving user comfort.

14 is a schematic flow chart of a control method in which a refrigerating and freezing apparatus operates in an embedded heat dissipation mode according to another embodiment of the present invention. Specifically, the following steps are included:

In step S203, it is determined whether the bottom condenser temperature is higher than the ambient temperature by more than the third difference ΔT ₃ ; if yes, step S206 is directly performed; if not, step S204 is performed.

Step S204, determining whether the ambient temperature is less than the second upper limit threshold T2; if yes, executing step S206; if not, executing step S208.

In step S208, the side condenser is stopped.

In step S212, the blower is controlled to start running.

The third difference in the above step S203 is greater than the first difference. Specifically, it may be a temperature value greater than or equal to 13 °C. Preferably, the third difference is no more than 15 °C. That is, in order to avoid the problem that the refrigerating and freezing device is in the embedded heat dissipating mode, the heat dissipation effect is poor due to the surrounding shielding, and the temperature of the bottom condenser is too high, the control method in this embodiment can also set the limit temperature. The difference, which is the third difference, is used to detect if the bottom condenser is too hot. Specifically, when the temperature of the bottom condenser is too high (the bottom condenser temperature is higher than the ambient temperature exceeds the third difference), the side condenser is forced to operate regardless of the ambient temperature to ensure the safe operation of the refrigeration system. .

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A refrigerating and freezing device comprising:

a cabinet having a storage compartment defined therein;

a compressor compartment disposed below the rear of the tank to install a compressor and a cooling fan, and the compressor is configured to be located downstream of the cooling fan air supply path;

a bottom condenser disposed in the compressor chamber and configured to be located upstream of the cooling fan air supply path; and

At least one side condenser disposed inside at least one side wall of the case;

The bottom front side of the compressor compartment has a lateral opening to allow air to flow into or out of the compressor compartment;

The cooling fan is configured to draw air into the compressor chamber via at least a portion of the lateral opening and cause it to flow sequentially through the bottom condenser, the cooling fan, and the compressor via at least a portion of the lateral direction Opening out; and

The side condenser is disposed in parallel with the bottom condenser and is configured to be selectively controlled to dissipate heat from the refrigeration system simultaneously with the bottom condenser.
The refrigerating and freezing apparatus according to claim 1, further comprising:

a blower disposed in the compressor chamber and located downstream of the cooling fan air supply path and the compressor, configured to accelerate air flow to the compressor chamber from at least a portion of the lateral opening; among them

The lateral opening is defined by a gap between a bottom support plate of the compressor block and a rear wall panel of the case; and

The blower is configured such that its air vent is disposed toward at least a portion of the lateral opening to cause air flowing from the compressor casket to continue to flow forward.
The refrigerating and freezing apparatus according to claim 2, further comprising:

a temperature sensor disposed on the bottom condenser to detect a temperature thereof;

The blower is configured to control start to force heat dissipation of the compressor block when the temperature of the bottom condenser is greater than an ambient temperature exceeding a predetermined first difference.
The refrigerating and freezing apparatus according to claim 2, further comprising:

a ventilation duct disposed in a bottom space of the tank at a front side of the air blower, and a rear end thereof extends rearward to interface with the air blowing port of the air blower;

The ventilation duct is configured to have a cross-sectional area that gradually increases from the rear to the front to gradually diffuse forward the air flowing out of the compressor compartment.
The refrigerating and freezing apparatus according to claim 4, wherein

The distance between the bottom of the ventilation duct and the ground is greater than 10 mm.
The refrigerating and freezing apparatus according to claim 4, further comprising:

a windshield partition disposed at a laterally intermediate position of the bottom of the box and extending rearward from a front portion of the bottom wall of the box to a rear end of the bottom of the box to extend the box The bottom area is divided into left and right parts, and the air in the two parts is prevented from directly performing gas exchange;

The blower and the ventilation duct are integrally located on the same side of the windshield in the lateral direction.
The refrigerator-freezer according to claim 1, wherein

The side condenser is configured to be controlled to operate when the ambient temperature is less than or equal to a preset upper threshold to assist in cooling the refrigeration system.
A refrigerating and freezing apparatus according to claim 7, wherein

The side condenser is configured to be disposed in parallel with the bottom condenser through a control valve, and is operated simultaneously with the bottom condenser by controlled communication of the control valve to collectively dissipate heat from the refrigeration system.
A refrigerating and freezing apparatus according to claim 7, wherein

The refrigerating and freezing device has a free heat dissipation mode and an embedded heat dissipation mode;

When the refrigerating and freezing device is operated in the free cooling mode, the side condenser is controlled to operate when the ambient temperature is less than or equal to a preset first upper threshold;

When the refrigerating and freezing device is operated in the embedded heat dissipation mode, the side condenser is controlled to operate when the ambient temperature is less than or equal to a preset second upper threshold;

The first upper threshold is less than the second upper threshold.
The refrigerating and freezing apparatus according to claim 9, further comprising:

At least three distance sensors, three of which are respectively disposed on the left side, the right side, and the rear side of the case to respectively detect the refrigerating and freezing device and the wall on both sides and the rear side thereof / or the distance between the cabinets;

When the distance between the refrigerating and freezing device and the wall and/or the cabinet on both sides thereof is less than or equal to the first distance, and the refrigerating and freezing device is located between the rear wall and/or the cabinet When the distance is less than or equal to the second distance, the refrigerating and freezing device operates in a heat dissipation mode;

When the distance between the refrigerating and freezing device and the wall and/or the cabinet on both sides thereof is greater than the first distance, or the distance between the refrigerating and freezing device and the wall and/or the cabinet at the rear side thereof is greater than At the second distance, the refrigerated freezer operates in a free cooling mode.