CN107975887A - A kind of device and air-conditioning for slowing down air-conditioner outdoor unit frosting - Google Patents

Abstract

The invention discloses a device for slowing down the frosting of an outdoor unit of an air conditioner, which belongs to the technical field of air conditioners. The device includes: a heat storage device, the heat storage device is wrapped on the outside of at least part of the body of the compressor; a heat sink, the heat sink is arranged at the outdoor heat exchanger, and has a plurality of heat dissipation holes; the air supply pipe, the air supply pipe is connected The heat storage device and the heat sink; the driving device is used to drive the airflow from the heat storage device to the heat sink through the air supply pipe. The device for slowing down the frosting of the outdoor unit of the air conditioner of the present invention can transport the air with a higher temperature heated around the compressor to the outdoor heat exchanger, so that the waste heat generated when the compressor is working can be used to defrost and melt the outdoor heat exchanger. Ice can effectively eliminate the micro-frost condensed on the outdoor heat exchanger, ensure the heat exchange efficiency of the outdoor heat exchanger, and improve the overall heating performance of the air conditioner.

Description

A device and an air conditioner for slowing down the frosting of an air conditioner outdoor unit

technical field

The invention relates to the technical field of air conditioners, in particular to a device for slowing down the frosting of an outdoor unit of an air conditioner and an air conditioner.

Background technique

With the improvement of people's living standards, air-conditioning equipment has also entered thousands of households. The use of household air-conditioning and central air-conditioning is becoming more and more common. Users have higher and higher requirements for air-conditioning comfort. Some problems have gradually come out, one of which is the problem of frost and freezing of the outdoor unit when the air conditioner is running in severe cold weather.

When the air conditioner is running in a low-temperature region or a region with strong wind and snow, the condensed water on the outer surface of the condenser of the outdoor unit will drip onto the chassis. If there is icing problem, the condensed ice layer on the outdoor unit will hinder the heat exchange between the internal refrigerant and the outdoor environment, which will reduce the cooling efficiency of the air conditioner. Additional consumption and user cost increase.

Contents of the invention

The invention provides a device for slowing down the frosting of an outdoor unit of an air conditioner and an air conditioner, aiming at solving the problem of frosting and icing when the outdoor unit of an air conditioner operates in winter or in severe cold weather. In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. This summary is not an overview, nor is it intended to identify key/critical elements or delineate the scope of these embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to the first aspect of the present invention, there is provided a device for slowing down the frosting of the outdoor unit of the air conditioner, the outdoor unit includes a compressor and an outdoor heat exchanger, and the device includes: a heat storage device, which is wrapped in at least The outside of part of the body; the heat sink, the heat sink is arranged at the outdoor heat exchanger, and has multiple cooling holes; the air supply pipe, the air supply pipe is connected to the heat storage device and the heat sink; the drive device is used to drive the airflow from the heat storage The device is connected to the heat sink through the air supply pipe.

In an optional technical solution, the radiator is a plate-shaped or tubular structure, and the radiator is erected on at least one side of the outdoor heat exchanger.

In an optional technical solution, the outdoor heat exchanger has a U-shaped heat exchange pipe section, and the heat sink has a heat dissipation flat tube corresponding to the position of the U-shaped heat exchange pipe section, and one or more heat dissipation flat pipes are embedded in the plate or on the tubular structure.

In an optional technical solution, the heat dissipation holes include heat dissipation microholes uniformly arranged in each heat dissipation flat tube.

In an optional technical solution, the heat storage device has a casing made of heat storage material, and the casing is wrapped around at least part of the body of the compressor.

In an optional technical solution, the casing is provided with an air inlet and an air outlet, and the air outlet communicates with the air supply pipe.

In an optional technical solution, the air outlet is located vertically above the air inlet.

In an optional technical solution, the driving device includes a blower, and the air delivery port of the blower communicates with the air intake.

In an optional technical solution, the device further includes: a sensor, used to detect the outdoor ambient temperature; a controller, electrically connected to the sensor and the driving device, used for when the outdoor ambient temperature detected by the sensor satisfies the defrosting temperature condition , to control the operation of the driving device.

According to the second aspect of the present invention, an air conditioner is also provided, the outdoor unit of the air conditioner is provided with any one of the aforementioned devices for slowing down the frosting of the outdoor unit of the air conditioner.

The device for slowing down the frosting of the outdoor unit of the air conditioner of the present invention can transport the air at a relatively high temperature heated around the compressor to the outdoor heat exchanger, so that the waste heat generated during the operation of the compressor can be used to defrost and melt the outdoor heat exchanger. Ice can effectively eliminate the micro-frost condensed on the outdoor heat exchanger, ensure the heat exchange efficiency of the outdoor heat exchanger, and improve the overall heating performance of the air conditioner.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a partial structural schematic diagram of an air conditioner outdoor unit of the present invention shown according to an exemplary embodiment;

Fig. 2 is a schematic structural diagram of a heat sink according to an exemplary embodiment of the present invention.

Among them, 11. Outdoor heat exchanger; 12. Compressor; 21. Cover; 22. Air inlet; 23. Air outlet; Tube; 5, driving device; 6, sensor.

Detailed ways

The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such as first and second etc. are used only to distinguish one entity or operation from another without requiring or implying any actual relationship or relationship between these entities or operations. order. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed elements, or also include elements inherent in such a process, method, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element. Various embodiments herein are described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same and similar parts of the various embodiments may be referred to each other. As for the methods, products, etc. disclosed in the examples, since they correspond to the methods disclosed in the examples, the description is relatively simple, and for relevant information, please refer to the description of the methods.

Fig. 1 is a schematic diagram of a partial structure of an outdoor unit of an air conditioner according to an embodiment of the present invention.

As shown in Figure 1, the outdoor unit of the air conditioner of the present invention mainly includes a compressor 12, an outdoor heat exchange room and a device for slowing down the frosting of the outdoor unit of the air conditioner, wherein the device mainly includes a heat storage device, a radiator 3, an air supply pipe 4 and The drive device 5 and other components, the device can transport the hot high-temperature air heated by the waste heat of the compressor 12 to the outdoor heat exchanger 11, so as to remove the frosting in a small area on the outer surface of the outdoor heat exchanger 11 in time, and prevent the frosting problem from getting worse , so as to achieve the purpose of delaying frosting, prolonging the heating operation time, and improving the low-temperature heating effect.

Specifically, the heat storage device is wrapped around at least part of the body of the compressor 12. For example, in the embodiment, the heat storage device includes a casing 21 of a cylindrical structure, and the inner diameter of the cylindrical structure is greater than or equal to the body of the compressor 12. The outer diameter of the casing 21 is sheathed on the outside of the compressor 12 and forms an airtight fit with the outer shell of the compressor 12 .

Preferably, when the compressor 12 performs compression work, the compression chamber part generates more heat, therefore, the casing 21 of the heat storage device of the present invention can be sleeved on the compression chamber part of the compressor 12 . It should be understood that the structural form of the heat storage device of the present invention is not limited to the cylinder structure, and those skilled in the art can make adaptive improvements to the structure of the heat storage device according to the needs of airtight fit, so that the heat storage device and the compressor 12 can form a closed air circulation space to reduce the loss of heat emitted by the compressor 12 and improve the recovery efficiency of the heat storage device for the waste heat of the compressor 12, so it should also be covered within the protection scope of the present invention.

In an embodiment of the present invention, the heat storage device is made of a heat storage material, such as rolling the heat storage material into the aforementioned cylinder structure. Optionally, the heat storage material is made of an adsorption heat storage material with a porous structure, such as Zeolite, silica gel and other materials.

In this way, the inside of the cylinder structure made of heat storage material will form a porous channel for air flow, which is convenient for air of different temperatures to flow in the heat storage material or in the space between the cylinder structure and the outer casing of the compressor 12. flow.

In the embodiment of the present invention, the cooling element 3 is arranged at the outdoor heat exchanger 11 and has a plurality of cooling holes, the cooling element 3 has an air flow channel, and the air flow channel communicates with the plurality of cooling holes; the cooling element 3 The heat storage device is communicated with the heat storage device through the air supply pipe 4, so that the heated hot air in the heat storage device can be transported to the air flow channel of the heat sink 3 through the air supply pipe 4, and then the hot air is blown out from the heat dissipation holes, so that through The hot air blown out from the heat dissipation holes can change the ambient temperature of the outdoor heat exchanger 11 and increase the ambient temperature of the outdoor heat exchanger 11, and the frost condensed on the outer surface of the outdoor heat exchanger 11 will melt after absorbing the heat of the ambient temperature Or sublimation, so that the purpose of eliminating frost on the outer surface of the outdoor unit can be achieved.

Fig. 2 is a schematic structural diagram of a heat sink 3 according to an exemplary embodiment of the present invention.

In the embodiment, the cooling element 3 is a plate-shaped or tubular structure, and the cooling element 3 is erected on the inside, outside or both sides of the outdoor heat exchanger 11, which can be determined according to actual defrosting requirements.

In the embodiment, the outdoor heat exchanger 11 has a U-shaped heat exchange pipe section, which is a position where frosting is relatively easy or serious. Preferably, the radiator 3 has a heat dissipation flat corresponding to the position of the U-shaped heat exchange pipe section Tube 31, one or more heat dissipation flat tubes 31 are embedded in the plate or tube structure.

In the embodiment, the heat dissipation holes include heat dissipation microholes 32 uniformly arranged in each heat dissipation flat tube 31 .

In the embodiment, the air flow sequence in the device for slowing down the frosting of the outdoor unit of the air conditioner is to flow from the heat storage device to the radiator 3. Therefore, in order to ensure the continuation of the hot air defrosting process, the cover The shell 21 is respectively provided with an air outlet 23 and an air inlet 22, wherein the air outlet 23 communicates with the air supply pipe 4, and the hot air in the heat storage device is delivered to the air supply pipe 4 through the air inlet 22; It communicates with the external environment of the heat storage device, so as to supplement the air flowing out through the air outlet 23 from the external environment.

In this way, the flow sequence of air in the heat storage device is as follows: outside air enters the porous space of the heat storage material of the heat storage device through the air inlet 22 or the space between the cylinder structure and the outer casing of the compressor 12, and then passes through The hot air heated by the residual heat of the compressor 12 is discharged into the air supply pipe 4 through the air outlet 23 . In this way, the heat storage device can continuously replenish cold air from the air inlet 22 , and deliver the heated hot air to the radiator 3 through the air supply pipe 4 , so as to continuously defrost and melt the outdoor heat exchanger 11 .

Preferably, the air outlet 23 is located vertically above the air inlet 22, so that the heated hot air gradually floats up on the upper part of the casing 21 due to its own density reduction, and enters the air supply pipe 4 through the air outlet 23 In the road, to reduce the cooling effect of the newly added cold air from the air inlet 22 on the heated hot air.

In the embodiment, in order to improve the hot air delivery efficiency of the device for slowing down the frosting of the outdoor unit of the air conditioner, the device of the present invention is also provided with a driving device 5 which can be used to drive the airflow from the heat storage device to the heat sink 3 via the air supply pipe 4 .

Optionally, the driving device 5 includes a blower. In the embodiment, the air inlet of the blower is connected with the air inlet 22, and the blower can inhale the low-temperature air in the external environment under the negative pressure force generated by the rotation of its own blades, and transfer air from the air outlet to the outside environment. The tuyere blows to the air inlet 22 of the heat storage device, so as to increase the supplementary air volume of the heat storage device. At the same time, by changing the speed of the blower, the air supply speed and the air supply volume of the device for slowing down the frosting of the outdoor unit of the air conditioner of the present invention can also be changed, so as to meet the different defrosting requirements of the outdoor heat exchanger 11 .

In an embodiment, the device for slowing down the frosting of an air conditioner outdoor unit in the present invention further includes a sensor 6 and a controller, wherein the sensor 6 is used to detect the outdoor ambient temperature; the controller is electrically connected to the sensor 6 and the driving device 5 respectively, and the controller is used for When the outdoor ambient temperature detected by the sensor 6 satisfies the defrosting temperature condition, the driving device 5 is controlled to start running. Therefore, through the detection and judgment process of the sensor 6 and the controller, the defrosting function can be turned on when the outdoor heat exchanger 11 is at a temperature where frost may form, and the air supply and air supply operation of the drive device 5 can be turned on to slow down the temperature of the outdoor heat exchanger 11. 11 frosting problem; at the same time, the defrosting function can also be controlled to be closed when the outdoor heat exchanger 11 is not in a temperature condition where frosting may occur, and the driving device 5 is shut down to reduce the extra power consumption of the air conditioner.

The present invention also provides an air conditioner, the outdoor unit of the air conditioner is provided with any device in the foregoing embodiments for slowing down the frosting of the outdoor unit of the air conditioner. The air conditioner using this device can quickly defrost the heat exchanger when there is slight frosting, delay the frosting time, and improve the low-temperature heating effect; at the same time, since the outdoor heat exchanger 11 is heated from its external environment Therefore, the device of the present invention can also transfer the waste heat of the compressor 12 to the outdoor heat exchanger 11, thereby improving the utilization efficiency of the waste heat of the compressor 12 and enhancing the heating performance of the air conditioner.

It should be understood that the present invention is not limited to the processes and structures that have been described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (10)

1. A device for slowing down the frosting of an air conditioner outdoor unit, said outdoor unit comprising a compressor and an outdoor heat exchanger, characterized in that said device comprises: A heat storage device, the heat storage device is wrapped on the outside of at least part of the body of the compressor; A heat dissipation element, the heat dissipation element is arranged at the outdoor heat exchanger and has a plurality of heat dissipation holes; an air supply pipe, the air supply pipe communicates with the heat storage device and the heat sink; The driving device is used to drive the airflow from the heat storage device to the heat sink through the air supply pipe. 2 . The device according to claim 1 , wherein the cooling element is a plate-shaped or tubular structure, and the cooling element is erected on at least one side of the outdoor heat exchanger. 3 . 3. The device according to claim 2, wherein the outdoor heat exchanger has a U-shaped heat exchange tube section, and the heat sink has a heat dissipation flat tube corresponding to the position of the U-shaped heat exchange tube section, one or A plurality of the heat dissipation flat tubes are embedded on the plate or tube structure. 4 . The device according to claim 3 , wherein the heat dissipation holes include heat dissipation microholes uniformly arranged in each of the heat dissipation flat tubes. 5. The device according to claim 1, wherein the heat storage device has a casing made of heat storage material, and the casing is wrapped around the outer side of the at least part of the body of the compressor . 6. The device according to claim 5, wherein an air inlet and an air outlet are provided on the cover, and the air outlet communicates with the air supply pipe. 7. The device according to claim 6, wherein the air outlet is located vertically above the air inlet. 8 . The device according to claim 5 , wherein the driving device comprises a blower, and an air delivery port of the blower communicates with the air inlet. 9 . 9. The device according to claim 1, further comprising: A sensor for detecting the outdoor ambient temperature; The controller is electrically connected with the sensor and the driving device, and is used for controlling the operation of the driving device when the outdoor ambient temperature detected by the sensor meets the defrosting temperature condition. 10. An air conditioner, characterized in that the outdoor unit of the air conditioner is provided with the device for slowing down the frosting of the outdoor unit of the air conditioner according to any one of claims 1-9.