CN217235883U - Auxiliary defrosting device for air conditioner outdoor unit and air conditioner outdoor unit - Google Patents

Abstract

The application relates to the technical field of household appliances, and discloses an auxiliary defrosting device for an air conditioner outdoor unit. The air conditioner outdoor unit includes a casing, a compressor and an outdoor heat exchanger. The casing is configured with a compressor installation space and an outdoor heat exchanger. In the installation space, the auxiliary defrosting device includes: a heat dissipation plate, which can be arranged in the installation space of the outdoor heat exchanger, the heat dissipation plate is constructed with a hollow cavity, and is provided with air inlet holes and air outlet holes that communicate with the hollow cavity; air supply pipes, The first nozzle is used to be arranged in the compressor installation space, and the second nozzle is connected to the air inlet hole; the driving device is arranged in the air supply duct, and the driving device drives the air with heat in the compressor installation space to pass through the air supply duct. The first nozzle flows to the second nozzle of the air supply duct, enters the hollow cavity of the radiator plate through the air inlet hole of the radiator plate, and flows out through the air outlet hole of the radiator plate, thereby realizing the auxiliary defrosting of the outdoor heat exchanger. . The present application also discloses an air conditioner outdoor unit.

Description

Auxiliary defrosting device for air conditioner outdoor unit and air conditioner outdoor unit

technical field

The present application relates to the technical field of household appliances, for example, to an auxiliary defrosting device for an air conditioner outdoor unit and an air conditioner outdoor unit.

Background technique

Air conditioners have become one of the indispensable household appliances in people's lives. However, when the outdoor ambient temperature is low in winter, especially in areas with high humidity in winter, when the air conditioner is heating, the outdoor unit is prone to frost, which will affect the heating effect of the indoor unit of the air conditioner. The existing air conditioner is provided with an automatic defrosting mode, that is, the outdoor unit is defrosted by reversing the four-way valve.

In order to further improve the defrosting effect, the prior art discloses an auxiliary defrosting device for an air conditioner, which is installed on the outdoor unit of the air conditioner. The auxiliary defrosting device for the air conditioner includes a phase change accumulator and an exhaust pipe arranged through the phase change accumulator. And the heat pipe, the exhaust pipe is connected with the compressor of the outdoor unit of the air conditioner, and is used for the hot gas in the compressor to pass through to exchange heat with the phase change energy storage device. One end of the heat conduction pipe is connected with the phase change energy storage device. The other end is fixedly connected to the bottom of the outdoor unit of the air conditioner, and a heat transfer medium is arranged in the heat pipe for conducting the heat in the phase change accumulator to the bottom of the outdoor unit of the air conditioner. Furthermore, the melting of the frost on the bottom of the outdoor unit of the air conditioner is accelerated by the heat dissipation of the heat pipe.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

In the prior art, the auxiliary defrosting method of only storing heat through a phase change energy storage device and then dissipating heat through a heat conduction pipe has poor effect.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide an auxiliary defrosting device for an air conditioner outdoor unit and an air conditioner outdoor unit, which effectively improve the defrosting effect.

In some embodiments, the air conditioner outdoor unit includes a casing, a compressor and an outdoor heat exchanger, the casing is configured with a compressor installation space and an outdoor heat exchanger installation space, and the auxiliary defrosting device includes: heat dissipation a plate, which can be installed in the installation space of the outdoor heat exchanger, the heat dissipation plate is constructed with a hollow cavity, and is provided with an air inlet hole and an air outlet hole that communicate with the hollow cavity; an air supply duct, a first nozzle It is used to be arranged in the compressor installation space, and the second nozzle is connected to the air inlet hole; the driving device is arranged in the air supply duct, and the driving device drives the compressor installation space with heat. Air flows from the first nozzle of the air supply duct to the second nozzle of the air supply duct, enters the hollow cavity of the heat dissipation plate through the air inlet hole of the heat dissipation plate, and passes through the air inlet of the heat dissipation plate. The air outlet hole flows out, thereby realizing the auxiliary defrosting of the outdoor heat exchanger.

In some embodiments, the number of air outlet holes of the heat dissipation plate is multiple, and the plurality of air outlet holes are arranged on the heat dissipation plate at intervals.

In some embodiments, the heat dissipation plate includes a first heat dissipation plate and a second heat dissipation plate; the second nozzle of the air supply duct is provided with a first air supply branch and a second air supply branch. An air supply branch is communicated with the first heat dissipation plate, and the second air supply branch is communicated with the second heat dissipation plate.

In some embodiments, a duct plate of the air supply duct close to the first nozzle is provided in the compressor installation space.

In some embodiments, it further includes: a filter disposed at the first nozzle of the air supply duct and used for filtering the air entering the air supply duct.

In some embodiments, it further includes: an electric heating component disposed in the installation space of the outdoor heat exchanger for heating the air in the installation space of the outdoor heat exchanger.

In some embodiments, it further includes: a temperature sensor, disposed in the housing, for detecting the outdoor temperature; a controller, configured to, when the outdoor unit of the air conditioner is in a defrosting state, according to the temperature sensor The detected temperature controls the activation of the drive means and the electric heating element.

In some embodiments, when the outdoor unit of the air conditioner is in a defrosting state, when the temperature sensor detects that the outdoor temperature is lower than a first preset temperature, the controller controls the driving device to turn on , when the temperature sensor detects that the outdoor temperature is lower than a second preset temperature, the controller controls the electric heating component to turn on; wherein the first preset temperature is higher than the second preset temperature temperature.

In some embodiments, the air conditioner outdoor unit includes: a casing with an air inlet and an air outlet, the casing is configured with a compressor installation space and an outdoor heat exchanger installation space; the outdoor heat exchanger is arranged in the the installation space for the outdoor heat exchanger; the compressor is arranged in the compressor installation space; as in the above-mentioned auxiliary defrosting device for an outdoor unit of an air conditioner, the first nozzle of the air supply duct is arranged in the compressor in the installation space.

In some embodiments, it further includes: a fan support, disposed in the installation space of the outdoor heat exchanger; an outdoor fan, disposed in the fan support, and the outdoor fan is used to drive outdoor air through the air inlet of the casing After entering the casing and exchanging heat with the outdoor heat exchanger, it is discharged to the outdoor through the air outlet of the casing; the sound insulation cotton is wrapped in the compressor; wherein, the air supply duct is close to the first A pipe of a nozzle is fixed to the sound insulation cotton, and is located between the sound insulation cotton and the compressor, the heat dissipation plate is arranged on the fan bracket, and the auxiliary defrosting device is arranged with an electric heating part. In this case, the electric heating component is arranged on the fan support.

The auxiliary defrosting device for an air conditioner outdoor unit and the air conditioner outdoor unit provided by the embodiments of the present disclosure can achieve the following technical effects:

The auxiliary defrosting device for the outdoor unit of the air conditioner provided by the embodiment of the present disclosure utilizes the waste heat of the compressor to transport the air with heat to the installation space of the outdoor heat exchanger, so as to realize the auxiliary defrosting of the outdoor heat exchanger. On the one hand, the waste heat of the compressor can be recycled, which can effectively reduce energy consumption, thereby achieving the effect of energy saving and environmental protection; on the other hand, blowing hot air directly to the installation space of the outdoor heat exchanger can accelerate the defrosting process. speed, thereby effectively improving the defrosting effect.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

1 is a schematic structural diagram of an auxiliary defrosting device for an outdoor unit of an air conditioner provided by an embodiment of the present disclosure;

2 is a schematic structural diagram of another auxiliary defrosting device for an outdoor unit of an air conditioner provided by an embodiment of the present disclosure;

3 is a partially enlarged schematic diagram of an auxiliary defrosting device for an outdoor unit of an air conditioner provided by an embodiment of the present disclosure;

4 is a schematic diagram of the positional relationship between an auxiliary defrosting device, a sound insulation cotton, a fan support, and an outdoor heat exchanger provided by an embodiment of the present disclosure;

5 is a schematic diagram of the positional relationship between another auxiliary defrosting device, a sound insulation cotton, a fan support, and an outdoor heat exchanger provided by an embodiment of the present disclosure;

FIG. 6 is an expanded schematic diagram of a sound insulation cotton and an air supply duct provided by an embodiment of the present disclosure.

Reference number:

100: heat dissipation plate; 110: first heat dissipation plate; 120: second heat dissipation plate; 130: air outlet; 200: air supply duct; 210: filter; 220: first air supply branch; 230: second air supply Wind branch; 300: driving device; 400: electric heating part; 500: fan bracket; 600: sound insulation cotton; 700: outdoor heat exchanger.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the purposes of implementing the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientations shown in the drawings or Positional relationship. These terms are primarily used to better describe the embodiments of the present disclosure and embodiments thereof, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation. In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific situations.

In addition, the terms "arranged", "connected" and "fixed" should be construed broadly. For example, "connection" may be a fixed connection, a detachable connection, or a unitary construction; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediary, or two devices, elements or Internal connectivity between components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and/or B, means: A or B, or, A and B three relationships.

It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments may be combined with each other in the case of no conflict.

1-6, the embodiments of the present disclosure provide an auxiliary defrosting device for an air conditioner outdoor unit and an air conditioner outdoor unit. The air conditioner outdoor unit includes a casing, a compressor and an outdoor heat exchanger 700, and the casing is configured with The compressor installation space and the outdoor heat exchanger installation space. The auxiliary defrosting device includes a cooling plate 100, which can be installed in the outdoor heat exchanger installation space. Holes and air outlet holes 130; air supply duct 200, the first nozzle is used to be arranged in the compressor installation space, and the second nozzle is connected to the air inlet hole; driving device 300 is provided in the air supply duct 200, and the driving device 300 drives The air with heat in the compressor installation space flows from the first nozzle of the air supply duct 200 to the second nozzle of the air supply duct 200, enters the hollow cavity of the heat dissipation plate 100 through the air inlet hole of the heat dissipation plate 100, and passes through the air inlet of the heat dissipation plate 100. The air outlet 130 of the heat dissipation plate 100 flows out, thereby realizing the auxiliary defrosting of the outdoor heat exchanger 700 .

The compressor will emit heat during operation. By setting the auxiliary defrosting device, the air with heat in the compressor installation space is driven by the driving device 300 to flow from the first nozzle of the air supply duct 200 to the second of the air supply duct 200. The nozzle enters the heat dissipation plate 100 through the air inlet hole of the heat dissipation plate 100 , and flows out through the air outlet hole 130 of the heat dissipation plate 100 , thereby realizing auxiliary defrosting of the outdoor heat exchanger 700 .

The auxiliary defrosting device for the outdoor unit of the air conditioner provided by the embodiment of the present disclosure utilizes the waste heat of the compressor to transport the air with heat to the installation space of the outdoor heat exchanger, so as to realize the auxiliary defrosting of the outdoor heat exchanger 700 On the one hand, the waste heat of the compressor can be recycled, which can effectively reduce energy consumption, thereby achieving the effect of energy saving and environmental protection; on the other hand, the air with heat can be blown directly to the installation space of the outdoor heat exchanger, which can speed up the defrosting. speed, thereby effectively improving the defrosting effect.

In the embodiment of the present disclosure, the driving device 300 is used to drive the flow of air, and the setting form of the driving device 300 can be a fan arranged in the air supply duct 200 or a pump arranged on the air supply duct 200, as long as it can drive the air The device 300 realizes the flow of the driving air, and only needs to transport the air with heat in the compressor installation space to the outdoor heat exchanger installation space, which is not specifically limited.

Optionally, the number of the air outlet holes 130 of the heat dissipation plate 100 is multiple, and the plurality of air outlet holes 130 are arranged on the heat dissipation plate 100 at intervals.

A plurality of air outlet holes 130 are opened on the heat dissipation plate 100 , and the plurality of air outlet holes 130 are arranged at intervals. In this way, the air outlet range of the heat dissipation plate 100 can be effectively expanded, thereby improving the efficiency of defrosting.

Optionally, the heat dissipation plate 100 includes a first heat dissipation plate 110 and a second heat dissipation plate 120; the second nozzle of the air supply duct 200 is provided with a first air supply branch 220 and a second air supply branch 230. The air branch 220 is communicated with the first heat dissipation plate 110 , and the second air supply branch 230 is communicated with the second heat dissipation plate 120 .

By arranging two heat dissipation plates 100 , the air outlet range of the heat dissipation plates 100 is further expanded, thereby improving the defrosting effect. When two cooling plates 100 are provided, a first air supply branch 220 and a second air supply branch 230 are arranged at the second nozzle of the air supply duct 200 , and the first air supply branch 220 communicates with the first heat dissipation plate 110 , the second air supply branch 230 is communicated with the second heat dissipation plate 120 . By setting two air supply branches to supply air to the two heat dissipation plates 100 respectively, in this way, the air supply efficiency can be effectively improved.

In the embodiment of the present disclosure, the first air supply branch 220 and the second air supply branch 230 are arranged at the second nozzle of the air supply duct 200 , and a three-way shunt pipe can be installed at the second nozzle of the air supply duct 200 . port, or install a three-way valve, there is no specific limitation on this.

Optionally, the air outlet directions of the air outlet holes 130 of the first heat dissipation plate 110 and the second heat dissipation plate 120 are arranged in such a manner that the air outlet directions are away from each other. For example, the first radiating plate 110 and the second radiating plate 120 are arranged in the middle of the outdoor heat exchanger 700, and the air outlet holes are arranged away from each other to supply air to both sides of the outdoor heat exchanger 700, and then pass through the outdoor fan. The hot air is blown to the outdoor heat exchanger 700, and the air is uniformly supplied, thereby improving the air supply effect.

Optionally, the number of the heat dissipation plates 100 is multiple, the second nozzle of the air supply nozzle is correspondingly provided with a plurality of air supply branches, and the multiple air supply branches are respectively connected to the multiple air supply branches in a one-to-one correspondence. .

In this way, the user can install different numbers of cooling plates 100 according to actual needs or the size of the outdoor heat exchanger 700 , and the air supply pipes are correspondingly provided with a plurality of air supply branches, which are respectively connected to the cooling plates 100 . In this way, the user can flexibly set the number of the cooling plates 100 and the air supply branches, thereby effectively ensuring the defrosting effect.

Optionally, a duct plate of the air supply duct 200 close to the first nozzle is provided in the compressor installation space.

When the compressor is running, heat is generated, so that the temperature of the air in the compressor installation space will increase, and the temperature of the pipe wall of the pipe near the first nozzle of the air supply pipe 200 will increase accordingly. In this way, the air supply duct 200 located in the compressor installation space will also further heat the air flowing through the air supply duct 200 here, thereby accelerating the defrosting speed.

On the other hand, the air supply duct 200 close to the first nozzle is arranged in the compressor installation space, that is, the coil arrangement form of the serpentine duct. With this arrangement, the area of the air supply duct 200 located in the compressor installation space is increased, that is, the heat exchange area of the air supply duct 200 is increased. In this way, the driving device 300 drives the air with heat in the compressor installation space to enter the air supply duct 200 , and the serpentine duct located in the compressor installation space further heats the air flowing therethrough, so that the air from the air outlet 130 of the heat dissipation plate 100 is further heated. The temperature of the blown air increases, thereby improving the defrosting efficiency.

Optionally, the air supply duct 200 is made of metal material.

The thermal conductivity of metal materials is greater than that of non-metallic materials, and the air supply duct 200 is made of metal material. In this way, the air supply duct 200 located in the compressor installation space can shorten the heating process, thereby improving the defrosting efficiency.

Optionally, a filter 210 is also included, which is disposed at the first nozzle of the air supply duct 200 and used to filter the air entering the air supply duct 200 .

The air conditioner outdoor unit is in an outdoor environment. When the air is driven by the driving device 300 to flow, it will inevitably suck outdoor impurities into the air supply duct 200 , such as dust, flying insects, paper scraps, and the like. The dust sucked into the air supply duct 200 will adhere to the inner wall of the duct or the inner wall of the cooling plate 100, thereby making it difficult for the auxiliary defrosting device or the outdoor radiator to be cleaned. As a result, the auxiliary defrosting device cannot be used normally. However, relatively large debris such as flying insects and paper scraps are sucked into the air supply duct 200, which will directly cause blockage of the air supply duct 200 or the heat sink 100, thereby affecting the normal operation of the auxiliary defrosting device.

By arranging the filter 210 at the first nozzle of the air supply duct 200, the air entering the air supply duct 200 is filtered, so that the normal use of the auxiliary defrosting device can be effectively ensured, and the use of the auxiliary defrosting device can be extended. life.

Optionally, the auxiliary defrosting device further includes an electric heating component 400, which is disposed in the installation space of the outdoor heat exchanger and used to heat the air in the installation space of the outdoor heat exchanger.

The electric heating component 400 is installed in the installation space of the outdoor heat exchanger, the electric heating component 400 heats the air in the installation space of the outdoor heat exchanger, and the air is heated by the electric heating component 400, so that the defrosting efficiency can be further improved, and further Effectively improve the defrosting effect.

The electric heating component 400 in the embodiment of the present disclosure is used to heat the air in the installation space of the outdoor heat exchanger. The electric heating component 400 may be a resistance wire or an electromagnetic coil, and the setting form may be directly wound in the outdoor unit of the air conditioner. The fan bracket 500 can also be fixed by other components, as long as the electric heating component 400 can be used to heat the air in the installation space of the outdoor heat exchanger through the power supply. The method is not specifically limited.

Optionally, the electric heating component 400 includes two arc-shaped metal rings, which are respectively disposed on the air outlet sides of the air outlet holes 130 of the first heat dissipation plate 110 and the second heat dissipation plate 120, and are fixed to the outdoor heat exchanger. Installation space; resistance wire, wound on arc-shaped metal ring.

As shown in FIG. 5 , two arc-shaped metal rings are respectively disposed on the air outlet sides of the air outlet holes 130 of the first heat dissipation plate 110 and the second heat dissipation plate 120 , and are fixed in the installation space of the outdoor heat exchanger, and the resistance wires are wound around Curved metal ring. Such an arrangement is convenient for the outdoor fan to blow heat to the outdoor heat exchanger 700, thereby increasing the defrosting speed.

At the same time, by setting the size of the arc-shaped metal ring, the heating range for heating the air in the installation space of the outdoor heat exchanger can be adjusted. In this way, the heating range of the resistance wire is expanded, and the limitation of directly winding the resistance wire on the fan support 500 is effectively avoided. With this arrangement, the defrosting effect is further improved.

Optionally, the auxiliary defrosting device further includes a temperature sensor, which is arranged on the housing and is used to detect the outdoor temperature; the controller is configured to control the driving according to the temperature detected by the temperature sensor when the outdoor unit of the air conditioner is in a defrosting state. Turning on of the device 300 and the electric heating element 400 .

Existing air conditioners are usually provided with a defrosting mode, and the controller is configured to control the opening of the driving device 300 and the electric heating component 400 to assist the outdoor unit of the air conditioner only when the outdoor unit of the air conditioner is in a defrosting state. Defrosting, thereby improving the efficiency of defrosting. In this way, energy consumption can be effectively reduced.

When the outdoor ambient temperature is low in winter, especially in areas with high humidity in winter, the outdoor unit of the air conditioner will be prone to frost when the air conditioner is heating. Therefore, whether the outdoor unit of the air conditioner will frost depends on the outdoor ambient temperature.

Further, a temperature sensor is provided on the casing of the air conditioner outdoor unit, and the controller is configured to control the opening of the driving device 300 and the electric heating component 400 according to the outdoor temperature detected by the temperature sensor when the air conditioner outdoor unit is in a defrosting state . In this way, energy consumption can be effectively reduced.

Optionally, when the outdoor unit of the air conditioner is in a defrosting state, when the temperature sensor detects that the outdoor temperature is lower than the first preset temperature, the controller controls the drive device 300 to turn on, and when the temperature sensor detects that the outdoor temperature is lower than the first preset temperature At two preset temperatures, the controller controls the electric heating component 400 to turn on; wherein, the first preset temperature is higher than the second preset temperature.

Different outdoor temperatures, different degrees of frost, and different defrosting efficiency. The lower the temperature, the more serious the degree of frosting and the lower the efficiency of defrosting.

Based on this, when the outdoor unit of the air conditioner is in a defrosting state, when the temperature sensor detects that the outdoor temperature is lower than the first preset temperature, the controller controls the driving device 300 to turn on. That is to say, when the outdoor temperature is the first preset temperature but higher than the second preset temperature, it is only necessary to turn on the drive device 300 to assist defrosting of the outdoor unit of the air conditioner, which can effectively ensure the defrosting effect.

When the temperature sensor detects that the outdoor temperature is lower than the second preset temperature, the controller controls the electric heating part 400 to turn on. That is to say, when the outdoor temperature is lower than the second preset temperature, it is difficult to ensure the defrosting effect by only turning on the driving device 300. At this time, the controller controls the electric heating component 400 to turn on. The air flow in the compressor installation space is driven by the driving device 300, the air with heat is transported to the heat dissipation plate 100 through the air supply duct 200, and blown from the air outlet 130 of the heat dissipation plate 100 to the outdoor heat exchanger installation space. The outdoor unit of the air conditioner performs auxiliary defrosting. At the same time, the electric heating component 400 electrically heats the air in the installation space of the outdoor heat exchanger, and through the cooperation of the two, the defrosting effect can be effectively ensured.

When the outdoor unit of the air conditioner is in a defrosting state, the activation of the driving device 300 and the electric heating component 400 is controlled according to the temperature, so that the energy consumption can be effectively reduced.

The first preset temperature and the second preset temperature in the embodiment of the present disclosure may be set by the user, or may be set by the factory, which is not specifically limited.

Optionally, the outdoor unit of the air conditioner includes a housing with an air inlet and an air outlet, and the housing is configured with a compressor installation space and an outdoor heat exchanger installation space; the outdoor heat exchanger 700 is arranged in the outdoor heat exchanger installation space; The compressor is arranged in the compressor installation space; it also includes the above-mentioned auxiliary defrosting device for the outdoor unit of the air conditioner, and the first nozzle of the air supply duct 200 is arranged in the compressor installation space.

The compressor will emit heat during operation. By setting the auxiliary defrosting device, the air with heat in the compressor installation space is driven by the driving device 300 to flow from the first nozzle of the air supply duct 200 to the second of the air supply duct 200. The nozzle enters the heat dissipation plate 100 through the air inlet hole of the heat dissipation plate 100 , and flows out through the air outlet hole 130 of the heat dissipation plate 100 , thereby realizing auxiliary defrosting of the outdoor heat exchanger 700 .

The auxiliary defrosting device for the outdoor unit of the air conditioner provided by the embodiment of the present disclosure utilizes the waste heat of the compressor to transport the air with heat to the installation space of the outdoor heat exchanger, so as to realize the auxiliary defrosting of the outdoor heat exchanger 700 On the one hand, the waste heat of the compressor can be recycled, which can effectively reduce energy consumption, thereby achieving the effect of energy saving and environmental protection; on the other hand, the air with heat can be blown directly to the installation space of the outdoor heat exchanger, which can speed up the defrosting. speed, thereby effectively improving the defrosting effect.

In the embodiment of the present disclosure, the driving device 300 is used to drive the flow of air, and the setting form of the driving device 300 can be a fan arranged in the air supply duct 200 or a pump arranged on the air supply duct 200, as long as it can drive the air The device 300 realizes the flow of the driving air, and only needs to transport the air with heat in the compressor installation space to the outdoor heat exchanger installation space, which is not specifically limited.

Optionally, the outdoor unit of the air conditioner further includes a fan bracket 500, which is arranged in the installation space of the outdoor heat exchanger; the outdoor fan is arranged in the fan bracket 500. After heat exchange, the outdoor heat exchanger 700 is discharged to the outside through the air outlet of the casing; the sound insulation cotton 600 is wrapped in the compressor; wherein, the pipeline of the air supply pipe 200 close to the first nozzle is fixed to the sound insulation cotton 600, and is located in the sound insulation cotton 600. Between 600 and the compressor, the cooling plate 100 is provided on the fan support 500 , and when the auxiliary defrosting device is provided with the electric heating component 400 , the electric heating component 400 is provided on the fan support 500 .

By setting the sound insulation cotton 600 to wrap the compressor, when the compressor is running, it can play a role of damping vibration, thereby reducing noise and prolonging the service life of the compressor. The air supply duct 200 near the first nozzle is fixed to the sound insulation cotton 600 and located between the sound insulation cotton 600 and the compressor. In such an arrangement, on the one hand, the sound insulation cotton 600 can play a role of heat preservation for the air supply duct 200, effectively slowing down the heat dissipation speed at a lower outdoor temperature. On the other hand, the air supply duct 200 is close to the compressor, and heat can be directly conducted to the air supply duct 200 to avoid heat dissipation.

In the embodiment of the present disclosure, the pipeline of the air supply duct 200 close to the first nozzle is fixed to the sound insulation cotton 600, which can be in the form of glue or Velcro, as long as the air supply pipeline 200 can be close to the first nozzle. It is enough to fix the pipeline, which is not specifically limited.

The heat dissipation plate 100 and the electric heating component 400 are arranged on the fan support 500, and the fan support 500 is located between the outdoor fan and the outdoor heat exchanger 700. In this way, the air blowing through the air outlet 130 of the heat dissipation plate 100 to the outdoor heat exchanger is installed. The air with heat in the space and the electric heating component 400 electrically heat the air in the installation space of the outdoor heat exchanger, and the heat is blown to the outdoor heat exchanger 700 through the outdoor fan.

In this way, the heat can fully cover the outdoor heat exchanger 700, thereby effectively ensuring the defrosting effect.

The heat dissipation plate 100 in the embodiment of the present disclosure is disposed on the fan support 500, and is used for blowing air with heat into the installation space of the outdoor heat exchanger. The heat dissipation plate 100 may be disposed on the side of the fan support 500 facing the outdoor heat exchanger 700, It can also be arranged on the side of the fan support 500 facing the outdoor fan, as long as the heat dissipation plate 100 can blow hot air into the installation space of the outdoor heat exchanger, which is not specifically limited.

The electric heating component 400 in the embodiment of the present disclosure is disposed on the fan support 500, and is used to electrically heat the air in the installation space of the outdoor heat exchanger. The electric heating component 400 may be directly wound around the fan support 500, or may be fixed to the fan support 500 through other components. The fan support 500 is not limited as long as the electric heating component 400 can electrically heat the air in the installation space of the outdoor heat exchanger.

Optionally, the fan support 500 is made of metal material.

The thermal conductivity of metal materials is greater than that of non-metallic materials, and the fan support 500 is made of metal materials. In this way, when the electric heating component 400 is a resistance wire, and the setting form is to be directly wound on the fan support 500, the metal fan support 500 can resist the wire to the outdoor. The electric heating of the air in the installation space of the heat exchanger plays a strengthening role, which can effectively improve the defrosting effect.

Optionally, the arc-shaped metal ring of the electric heating component 400 is fixed to the fan support 500 .

As shown in FIG. 5 , two arc-shaped metal rings are respectively disposed on the air outlet sides of the air outlet holes 130 of the first heat dissipation plate 110 and the second heat dissipation plate 120 , and are fixed to the fan bracket 500 , and the resistance wire is wound around the arc-shaped metal ring. lock up. Such an arrangement is convenient for the outdoor fan to blow heat to the outdoor heat exchanger 700, thereby increasing the defrosting speed.

At the same time, by setting the size of the arc-shaped metal ring, the heating range for heating the air in the installation space of the outdoor heat exchanger can be adjusted. In this way, the heating range of the resistance wire is expanded, and the limitation of directly winding the resistance wire on the fan support 500 is effectively avoided. With this arrangement, the defrosting effect is further improved.

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples are only representative of possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An auxiliary defrosting device for an outdoor unit of an air conditioner, the outdoor unit of the air conditioner comprising a casing, a compressor and an outdoor heat exchanger, and the casing is configured with a compressor installation space and an outdoor heat exchanger installation space, It is characterized in that, the auxiliary defrosting device includes: a heat dissipation plate, which can be arranged in the installation space of the outdoor heat exchanger, the heat dissipation plate is configured with a hollow cavity, and is provided with an air inlet hole and an air outlet hole that communicate with the hollow cavity; an air supply duct, the first nozzle is used to be arranged in the compressor installation space, and the second nozzle is communicated with the air inlet hole; A driving device is arranged in the air supply duct, and the driving device drives the air with heat in the compressor installation space to flow from the first nozzle of the air supply duct to the second pipe of the air supply duct into the hollow cavity of the heat dissipation plate through the air inlet hole of the heat dissipation plate, and flow out through the air outlet hole of the heat dissipation plate, thereby realizing the auxiliary defrosting of the outdoor heat exchanger. 2. The auxiliary defrosting device according to claim 1, characterized in that: The number of air outlet holes of the heat dissipation plate is multiple, and the plurality of air outlet holes are arranged on the heat dissipation plate at intervals. 3. The auxiliary defrosting device according to claim 1, characterized in that: the heat dissipation plate includes a first heat dissipation plate and a second heat dissipation plate; The second nozzle of the air supply duct is provided with a first air supply branch and a second air supply branch, the first air supply branch is communicated with the first heat dissipation plate, and the second air supply branch The road is communicated with the second heat dissipation plate. 4. The auxiliary defrosting device according to claim 1, characterized in that: A duct plate of the air supply duct close to the first nozzle is arranged in the compressor installation space. 5. The auxiliary defrosting device according to claim 4, further comprising: The filter is arranged at the first nozzle of the air supply duct and is used for filtering the air entering the air supply duct. 6. The auxiliary defrosting device according to claim 1, further comprising: The electric heating component is arranged in the installation space of the outdoor heat exchanger, and is used for heating the air in the installation space of the outdoor heat exchanger. 7. The auxiliary defrosting device according to claim 6, further comprising: a temperature sensor, arranged on the casing, for detecting the outdoor temperature; The controller is configured to control the activation of the driving device and the electric heating part according to the temperature detected by the temperature sensor when the outdoor unit of the air conditioner is in a defrosting state. 8. The auxiliary defrosting device according to claim 7, characterized in that: When the outdoor unit of the air conditioner is in a defrosting state, when the temperature sensor detects that the outdoor temperature is lower than a first preset temperature, the controller controls the driving device to turn on, and when the temperature sensor detects that the outdoor temperature is lower than a first preset temperature When it is detected that the outdoor temperature is lower than the second preset temperature, the controller controls the electric heating component to turn on; Wherein, the first preset temperature is higher than the second preset temperature. 9. An air conditioner outdoor unit, characterized in that, comprising: The casing is provided with an air inlet and an air outlet, and the casing is configured with a compressor installation space and an outdoor heat exchanger installation space; an outdoor heat exchanger, arranged in the installation space of the outdoor heat exchanger; a compressor, arranged in the compressor installation space; The auxiliary defrosting device for an air conditioner outdoor unit according to any one of claims 1 to 8, wherein the first nozzle of the air supply duct is arranged in the compressor installation space. 10. The outdoor unit of an air conditioner according to claim 9, further comprising: a fan support, arranged in the installation space of the outdoor heat exchanger; The outdoor fan is arranged on the fan bracket, and the outdoor fan is used to drive the outdoor air to enter the casing through the air inlet of the casing and exchange heat with the outdoor heat exchanger and pass through the casing of the casing. The air outlet is discharged to the outside; sound insulation cotton, wrapped in the compressor; Wherein, the pipeline of the air supply pipe close to the first nozzle is fixed to the sound insulation cotton, and is located between the sound insulation cotton and the compressor, the heat dissipation plate is arranged on the fan bracket, and is located in the sound insulation cotton. When the auxiliary defrosting device is provided with an electric heating component, the electric heating component is provided on the fan support.

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