CN212431070U - Air conditioner and indoor unit thereof - Google Patents

Abstract

The application relates to the technical field of refrigeration equipment and discloses an indoor unit of an air conditioner. The indoor set includes first refrigerant filling device, first refrigerant filling device sets up in the first refrigerant access & exit of indoor set, be configured to filling into the refrigerant to the indoor set, thereby can fill into the refrigerant to the indoor set through the first refrigerant filling device who sets up at first refrigerant access & exit, the air in the indoor set refrigerant flow path of discharge, indoor set need not the evacuation before the installation of air conditioner like this, need carry out the drawback of evacuation to the indoor set before solving the installation of air conditioner among the prior art, thereby improve the installation effectiveness of air conditioner, improve the security of air conditioner installation, and the installation cost is reduced. The application also discloses an air conditioner.

Description

Air conditioner and indoor unit thereof

Technical Field

The present application relates to the field of refrigeration equipment technology, and for example, to an air conditioner and an indoor unit thereof.

Background

Currently, air conditioners in the market, such as inverter air conditioners and part R410A fixed-frequency air conditioners, must be vacuumized before installation, so that the air conditioners are not only low in installation efficiency and high in installation risk factor, but also expensive in installation cost, and bring inconvenience to companies and users.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an air conditioner and an indoor unit thereof, which are used for solving the problems of low installation efficiency, high danger coefficient and high installation cost caused by the fact that the indoor unit needs to be vacuumized before the existing air conditioner is installed.

According to the utility model discloses an aspect provides an indoor set of air conditioner, indoor set includes: and the first refrigerant filling device is arranged at a first refrigerant inlet and outlet of the indoor unit and is configured to fill refrigerant into the indoor unit.

According to a second aspect of the embodiments of the present invention, there is provided an air conditioner, including: an outdoor unit; a first on-line pipe; a second coupler tube; and an indoor unit of an air conditioner as described in any of the above embodiments; the outdoor unit, the first coupling pipe, the indoor unit and the second coupling pipe are communicated to form a refrigerant flow path.

The air conditioner and the indoor unit thereof provided by the embodiment of the disclosure can realize the following technical effects:

can fill in the refrigerant to the indoor set through setting up the first refrigerant filling device at first refrigerant access & exit, the air in the indoor set refrigerant flow path of discharge, indoor set need not the evacuation before the installation of air conditioner like this, need carry out the drawback of evacuation to the indoor set before solving the installation of air conditioner among the prior art to improve the installation effectiveness of air conditioner, improve the security of air conditioner installation, reduce installation cost.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of an air conditioner provided in an embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view of a portion of the air conditioner shown in FIG. 1;

FIG. 3 is an enlarged schematic view of another portion of the air conditioner shown in FIG. 1;

FIG. 4 is a schematic structural diagram of a wrench-type control valve provided by the disclosed embodiment;

FIG. 5 is a schematic illustration of a first inline pipe provided in embodiments of the present disclosure;

FIG. 6 is a schematic structural view of another first inline pipe provided in an embodiment of the present disclosure;

FIG. 7 is a schematic flow chart diagram of an assembly method provided by embodiments of the present disclosure;

fig. 8 is a schematic flow chart of another assembly method provided by the embodiments of the present disclosure.

Reference numerals:

the outdoor unit comprises an indoor unit 10, a first refrigerant inlet and outlet 101, a second refrigerant inlet and outlet 102, an outdoor unit 20, a third refrigerant inlet and outlet 201, a fourth refrigerant inlet and outlet 202, a first coupler 30, a second coupler 40, a wrench-type control valve 50, a knife switch 501, a valve body 502, a first refrigerant filling device 60, a first control device 70, a second control device 80, a third control device 90, a second refrigerant filling device 100, a third refrigerant filling device 200, a fourth refrigerant filling device 300 and a fourth control device 400.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order 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 in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

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

Referring to fig. 1 to 3, an indoor unit of an air conditioner according to an embodiment of the present disclosure includes an outdoor unit 20, a first coupling pipe 30, a refrigerant flow path formed by communicating the indoor unit 10 and a second coupling pipe 40, the indoor unit 10 includes an indoor heat exchanger, the outdoor unit 20 includes an outdoor heat exchanger, a first refrigerant inlet and outlet 101 and a second refrigerant inlet and outlet 102 are disposed on the indoor unit 10 and both communicate with the indoor heat exchanger, and a refrigerant flows into the indoor heat exchanger through the first refrigerant inlet and outlet 101 and flows out of the indoor heat exchanger through the second refrigerant inlet and outlet 102, or the refrigerant flows into the indoor heat exchanger through the second refrigerant inlet and outlet 102 and flows out of the indoor heat exchanger through the first refrigerant inlet and outlet 101. The outdoor unit 20 includes an outdoor heat exchanger, and the third refrigerant inlet/outlet 201 and the fourth refrigerant inlet/outlet 202 are provided in the outdoor unit 20 and are both communicated with the outdoor heat exchanger, and the refrigerant flows into the outdoor heat exchanger through the third refrigerant inlet/outlet 201 and flows out of the outdoor heat exchanger through the fourth refrigerant inlet/outlet 202, or the refrigerant flows into the outdoor heat exchanger through the fourth refrigerant inlet/outlet 202 and flows out of the outdoor heat exchanger through the third refrigerant inlet/outlet 201. As shown in fig. 1, when the air conditioner operates, the refrigerant flows along the refrigerant flow path and sequentially flows through the outdoor unit, the first coupling pipe, the indoor unit, and the second coupling pipe, or sequentially flows through the outdoor unit, the second coupling pipe, the indoor unit, and the first coupling pipe.

As shown in fig. 1 and 3, the indoor unit 10 includes a first refrigerant filling device 60.

The first refrigerant filling device 60 is disposed at the first refrigerant inlet/outlet 101 of the indoor unit 10, and is configured to fill the indoor unit 10 with refrigerant.

The first refrigerant filling device 60 is used for filling the refrigerant into the first refrigerant inlet and outlet 101 of the indoor unit 10, and the refrigerant flows into the refrigerant flow path of the indoor unit 10 and exhausts the air in the refrigerant flow path of the indoor unit 10, so that the indoor unit 10 mounted in the air conditioner does not need to be vacuumized, the mounting efficiency of the indoor unit 10 is improved, the mounting cost of the air conditioner is reduced, vacuumizing equipment is not needed, and the mounting cost of the air conditioner is further reduced.

Optionally, the first refrigerant filling device 60 includes a quick coupling, a three-way valve, a two-way valve or a one-way valve.

When the first refrigerant filling device 60 includes a quick coupling, which is named as a first quick coupling for avoiding confusion with the following description, a male end of the first quick coupling is disposed on one of the first refrigerant inlet and outlet 101 and the first in-line pipe 30 of the indoor unit 10, and a female end of the first quick coupling is disposed on the other of the first refrigerant inlet and outlet 101 and the first in-line pipe 30.

The male head of the first quick connector is arranged at the first refrigerant inlet and outlet 101, the female head of the first quick connector is arranged at the position, close to the first refrigerant inlet and outlet 101, of the first online pipe 30, when the male head and the female head of the first quick connector are connected, the first quick connector is conducted, and the first refrigerant inlet and outlet 101 and the first online pipe 30 are communicated through the first quick connector. Or, the female head of the first quick connector is arranged at the first refrigerant inlet and outlet 101, the male head is arranged at the position, close to the first refrigerant inlet and outlet 101, of the first online pipe 30, and when the male head and the female head of the first quick connector are connected, the first quick connector is conducted, and the first refrigerant inlet and outlet 101 and the first online pipe 30 are communicated through the first quick connector.

The first quick connector adopts a first quick connector with two closed ends, which means that when a male head and a female head of the first quick connector are not connected together, the first quick connector is disconnected, and the first refrigerant inlet and outlet 101 and the first connecting pipe 30 are not communicated; when the male and female connectors of the first quick coupling are connected together, the first quick coupling is turned on, and the first refrigerant inlet and outlet 101 and the first coupling pipe 30 are communicated through the first quick coupling. As long as satisfy first quick-operation joint's public head and female first butt joint can realize that first quick-operation joint switches on, first quick-operation joint of first quick-operation joint disconnection when public head and female head do not dock all is in the protection range of this application.

Set up first quick-operation joint for first refrigerant access & exit 101 department can directly fill and annotate the refrigerant, thereby need not be to indoor set 10 evacuation, need carry out the drawback of evacuation to indoor set 10 before solving the installation of air conditioner among the prior art, thereby improve the installation effectiveness of air conditioner, improve the security of air conditioner installation, reduce installation cost. The first on-line pipe 30 can be filled with refrigerant through the first quick connector, so that the first on-line pipe 30 does not need to be vacuumized.

When the first refrigerant filling device 60 includes a three-way valve, in order to avoid confusion with the following description, the three-way valve is named as a first three-way valve, the first three-way valve has three ports, which are named as a port, a port and a port, the port is connected to the first refrigerant inlet/outlet 101, the port is connected to the first integrated pipe 30, and the port serves as a maintenance port, and when maintenance is required, refrigerant in the indoor unit 10 or the first integrated pipe 30 is extracted through the port, wherein the port is selectively communicated with one of the port and the port, or the port is selectively communicated with one of the port and the port. The refrigerant may be filled into the first refrigerant inlet and outlet 101 or the first integrated pipe 30 through the three ports. Optionally, the device with the ejector pin may be disposed at the three ports, and the refrigerant charging of the indoor unit 10 is performed by the first three-way valve, so as to ensure the refrigerant charging of the on-line pipe.

When the first refrigerant filling device 60 includes a two-way valve, in order to avoid confusion with the following text, the two-way valve is named as a first two-way valve, the first two-way valve has two interfaces, which are named as a first interface and a second interface respectively, the first interface is connected with the first online pipe 30, the second interface is connected with the first refrigerant inlet and outlet 101, a device with an ejector pin can be arranged at the two interfaces, and refrigerant filling is performed on the indoor unit 10 through the first two-way valve, so that refrigerant filling of the online pipe is ensured.

When the first refrigerant filling device 60 includes a check valve, to avoid confusion with the following, the check valve is named as a first check valve, and a conducting direction of the first check valve is the same as a flowing direction of the refrigerant in the refrigerant flow path. When the first refrigerant filling device 60 includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the first refrigerant inlet and outlet 101 of the indoor unit 10 or the first integrated pipe 30 may be filled with the refrigerant through the first check valve.

Alternatively, as shown in fig. 1 and 3, the indoor unit 10 further includes a first control device 70, and the first control device 70 is disposed at the second refrigerant inlet/outlet 102 of the indoor unit 10 and configured to control on/off of the second refrigerant inlet/outlet 102.

When the first refrigerant filling device 60 fills the indoor unit 10 with the refrigerant, the first control device 70 controls the second refrigerant inlet/outlet 102 to be opened, so as to prevent the refrigerant filled into the indoor unit 10 from flowing out of the indoor unit 10 from the second refrigerant inlet/outlet 102.

In a specific embodiment, the first control device 70 may also fill the indoor unit 10 with the refrigerant, for example, the first control device 70 includes a second quick coupling, a second three-way valve, a second one-way valve, or a second two-way valve, in other words, the first control device 70 is further configured to fill the second refrigerant inlet/outlet 102 with the refrigerant, so as to fill the indoor unit 10 with the refrigerant and exhaust air in the refrigerant flow path of the indoor unit 10, thereby achieving that the indoor unit 10 does not need to be vacuumized.

When the first control device 70 includes the second quick coupling, a male end of the second quick coupling is disposed on one of the second refrigerant inlet/outlet 102 and the second coupling pipe 40 of the indoor unit 10, and a female end of the second quick coupling is disposed on the other of the second refrigerant inlet/outlet 102 and the second coupling pipe 40.

The male head of the second quick connector is arranged at the second refrigerant inlet and outlet 102, the female head of the second quick connector is arranged at the position, close to the second refrigerant inlet and outlet 102, of the second connector pipe 40, when the male head and the female head of the second quick connector are connected, the second quick connector is conducted, and the second refrigerant inlet and outlet 102 and the second connector pipe 40 are communicated through the second quick connector. Or the female head of the second quick connector is arranged at the second refrigerant inlet and outlet 102, the male head is arranged at the position, close to the second refrigerant inlet and outlet 102, of the second coupling pipe 40, when the male head and the female head of the second quick connector are connected, the second quick connector is conducted, and the second refrigerant inlet and outlet 102 and the second coupling pipe 40 are communicated through the second quick connector.

The second quick connector is a two-end-closed type second quick connector, which means that when a male head and a female head of the second quick connector are not connected together, the second quick connector is disconnected, and the second refrigerant inlet/outlet 102 and the second coupling pipe 40 are not communicated; when the male and female connectors of the second quick connector are connected together, the second quick connector is conducted, and the second refrigerant inlet/outlet 102 and the second coupling pipe 40 are communicated through the second quick connector. The second quick-operation joint of second quick-operation joint disconnection when public head and female head butt joint as long as satisfy second quick-operation joint can realize that second quick-operation joint switches on, public head and female head do not dock is all in the protection scope of this application.

The second quick coupling is arranged, so that the refrigerant can be directly filled in the second refrigerant inlet and outlet 102, the indoor unit 10 does not need to be vacuumized, the defect that the indoor unit 10 needs to be vacuumized before the air conditioner is installed in the prior art is overcome, the installation efficiency of the air conditioner is improved, the safety of the air conditioner installation process is improved, and the installation cost is reduced. The second coupling line 40 may also be filled with refrigerant via a second quick connector such that no vacuum is required in the second coupling line 40.

When the first control device 70 includes a second three-way valve, the second three-way valve has three ports, which are named as a port, a port and a port, the port is connected to the second refrigerant inlet/outlet 102, the port is connected to the second joint pipe 40, and the port is used as a maintenance port, and when maintenance is required, refrigerant in the indoor unit 10 or the second joint pipe 40 is drawn out through the port, wherein the port is selectively communicated with one of the port and the port, or the port is selectively communicated with one of the port and the port. The second refrigerant inlet/outlet 102 or the second coupler pipe 40 may be filled with refrigerant through a triple joint. Optionally, the device with the ejector pin may be disposed at the three ports, and the refrigerant charging of the indoor unit 10 is performed by the second three-way valve, so as to ensure the refrigerant charging of the on-line pipe.

When the first control device 70 includes the second two-way valve, the second two-way valve has two interfaces, which are named as a first interface and a second interface, respectively, the first interface is connected to the second joint pipe 40, the second interface is connected to the second refrigerant inlet/outlet 102, and the device with the ejector pin can be disposed at the first interface, and the refrigerant filling of the indoor unit 10 is performed through the second two-way valve, so as to ensure the refrigerant filling of the indoor unit 10.

When the first control device 70 includes the second check valve, the conduction direction of the second check valve is the same as the flow direction of the refrigerant in the refrigerant flow path. When the first control device includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the second refrigerant inlet/outlet 102 or the second coupling pipe 40 of the indoor unit 10 may be filled with the refrigerant through the second check valve.

In another embodiment, the second refrigerant inlet/outlet 102 cannot be filled with refrigerant by the first control device 70. For example, the first control device 70 may be a first trigger control valve.

As shown in fig. 4, the wrench-type control valve includes a valve body 502 and a knife blade 501 connected to the valve body 502, the knife blade 501 is movably connected to the valve body 502, and the position of the knife blade 501 relative to the valve body 502 can be adjusted to control the on-off of the wrench-type control valve, for example, the knife blade 501 is rotatably connected to the valve body 502, and the knife blade 501 rotates relative to the valve body 502 between a first position and a second position, such as the knife blade 501 is in the first position in fig. 4, in which the ball valve hole of the valve body 502 is perpendicular to the refrigerant flow path, the wrench-type control valve is turned off, and the refrigerant flow path is turned off; the knife 501 rotates along the arrow direction in fig. 4, and when the knife rotates to the second position, the ball valve hole is parallel to the refrigerant flow path, and the wrench-type control valve is turned on.

The embodiment of the present disclosure provides an air conditioner, including an outdoor unit 20, a first coupling pipe 30, a second coupling pipe 40, and an indoor unit 10 of the air conditioner as in any one of the above embodiments; the outdoor unit 20, the first coupling pipe 30, the indoor unit 10, and the second coupling pipe 40 are connected to form a refrigerant flow path.

The air conditioner provided in the embodiment of the present disclosure includes the indoor unit 10 described in any one of the above embodiments, and therefore, has all the beneficial effects of the indoor unit 10 described in any one of the above embodiments, and details are not repeated herein.

Optionally, as shown in fig. 1 to fig. 3, the air conditioner further includes a second refrigerant filling device 100 and a second control device 80, the second refrigerant filling device 100 is disposed at one end of the first integrated pipe 30 and configured to fill the first integrated pipe 30 with the refrigerant; the second control device 80 is arranged at the other end of the first on-line pipe 30 and is configured to control the on-off of the first on-line pipe 30; one of the second refrigerant filling device 100 and the second control device 80 is connected to the first refrigerant filling device 60, and the other of the second refrigerant filling device 100 and the second control device 80 is connected to the third refrigerant inlet/outlet 201 of the outdoor unit 20.

Annotate the refrigerant through second refrigerant filling device 100 in to first online pipe 30, the refrigerant flows in first online pipe 30, the air in the first online pipe 30 of discharge, the other end disconnection of first online pipe 30 is controlled through second controlling means 80 this moment, prevent that the refrigerant in the first online pipe 30 from flowing out from the other end of first online pipe 30, thereby first online pipe 30 need not the evacuation before making the air conditioner installation, improve the installation effectiveness of air conditioner, reduce the installation cost of air conditioner, and need not the evacuation equipment, the installation cost of air conditioner has further been reduced.

Optionally, the second refrigerant filling device 100 includes a third quick coupling, a third three-way valve, a third two-way valve, or a third one-way valve. The second refrigerant filling device 100 and the second control device 80 will be described below by taking an example in which the second refrigerant filling device 100 is connected to the first refrigerant filling device 60, and the second control device 80 is connected to the third refrigerant outlet/inlet 201.

When the second refrigerant filling device 100 includes the third quick coupling, if the first refrigerant filling device 60 includes the first quick coupling, the third quick coupling and the first quick coupling are the same component, that is, the same quick coupling, a male head of the quick coupling is disposed on one of the first refrigerant inlet and outlet 101 and the first in-line pipe 30 of the indoor unit 10, and a female head of the quick coupling is disposed on the other of the first refrigerant inlet and outlet 101 and the first in-line pipe 30.

When the second refrigerant filling device 100 includes the third quick coupling, if the first refrigerant filling device 60 does not include the first quick coupling, the male connector of the third quick coupling is connected to the first refrigerant filling device 60, and the interface of the first refrigerant filling device 60 for connecting to the first in-line pipe 30 forms one of the male connector and the female connector of the third quick coupling, and the other of the male connector and the female connector of the third quick coupling is disposed on the first in-line pipe 30.

The third quick coupling adopts a type with two closed ends.

When the second refrigerant filling device 100 includes a third three-way valve, the third three-way valve has three ports, which are named as a port, a port and a port, respectively, the port is connected to the first refrigerant filling device 60, the port is connected to the first integrated pipe 30, and the port is used as a maintenance port, and when maintenance is required, refrigerant in the indoor unit 10 or the first integrated pipe 30 is drawn out through the port, wherein the port is selectively communicated with one of the port and the port, or the port is selectively communicated with one of the port and the port. The refrigerant may be filled into the first refrigerant inlet and outlet 101 or the first integrated pipe 30 through the three ports. Optionally, the device with the ejector pin may be disposed at the three ports, and the refrigerant charging of the first integrated pipe 30 is performed by the third three-way valve, so as to ensure the refrigerant charging of the first integrated pipe 30.

When the second refrigerant filling device 100 includes the third two-way valve, the third two-way valve has two ports, which are named as a port and a port, respectively, the port is connected to the first integrated pipe 30, the port is connected to the first refrigerant filling device 60, the device with the ejector pin can be disposed at the port, the refrigerant filling is performed on the first integrated pipe 30 through the third two-way valve, and the refrigerant filling of the first integrated pipe 30 is ensured.

When the second refrigerant filling device 100 includes the third check valve, the conducting direction of the third check valve is the same as the flowing direction of the refrigerant in the refrigerant flow path. When the second refrigerant filling device 100 includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the refrigerant may be filled into the first integrated pipe 30 of the indoor unit 10 through a third check valve.

Optionally, the indoor unit 10 further includes a second control device 80, and the second control device 80 is disposed on the first joint pipe 30 and configured to control on/off of the first joint pipe 30.

When the refrigerant is charged into the first in-line pipe 30 by the second refrigerant charging device 100, the second control device 80 controls the first in-line pipe 30 to be disconnected, so that the refrigerant charged into the first in-line pipe 30 is prevented from flowing out of the first in-line pipe 30 from the second refrigerant inlet/outlet 102.

In a specific embodiment, the second control device 80 may also be used to fill the first in-line pipe 30 with the refrigerant, for example, the second control device 80 includes a fourth quick coupling, a fourth three-way valve, a fourth one-way valve or a fourth two-way valve, in other words, the second control device 80 is further configured to fill the first in-line pipe 30 with the refrigerant, so as to fill the first in-line pipe 30 with the refrigerant and exhaust the air in the first in-line pipe 30, thereby achieving that the first in-line pipe 30 does not need to be vacuumized.

When the second control device 80 includes a fourth quick coupling, a male end of the fourth quick coupling is disposed at one of the third refrigerant inlet/outlet 201 of the outdoor unit 20 and the first inline pipe 30, and a female end of the fourth quick coupling is disposed at the other of the third refrigerant inlet/outlet 201 and the first inline pipe 30.

The male head of the fourth quick connector is arranged at the third refrigerant inlet and outlet 201, the female head is arranged at the position, close to the third refrigerant inlet and outlet 201, of the first online pipe 30, when the male head and the female head of the fourth quick connector are connected, the fourth quick connector is conducted, and the third refrigerant inlet and outlet 201 and the first online pipe 30 are communicated through the fourth quick connector. Or, the female head of the fourth quick connector is arranged at the third refrigerant inlet/outlet 201, the male head is arranged at the position, close to the third refrigerant inlet/outlet 201, of the first on-line pipe 30, and when the male head and the female head of the fourth quick connector are connected, the fourth quick connector is conducted, and the third refrigerant inlet/outlet 201 and the first on-line pipe 30 are communicated through the fourth quick connector.

The fourth quick joint adopts a double-end closed type fourth quick joint.

The fourth quick coupling is provided, so that the refrigerant can be directly filled in the third refrigerant inlet/outlet 201, and the refrigerant filled in through the third refrigerant inlet/outlet 201 flows into the refrigerant flow path of the outdoor unit 20, thereby eliminating the need to vacuumize the outdoor unit 20. The refrigerant can be filled into the first integrated pipe 30 through the fourth quick connector, so that the first integrated pipe 30 does not need to be vacuumized.

When the second control device 80 includes a fourth three-way valve, the fourth three-way valve has three ports, which are named as a first port, a second port, and a third port, the first port is connected to the third refrigerant inlet/outlet 201, the second port is connected to the first inline pipe 30, and the third port is used as a maintenance port, and when maintenance is required, refrigerant in the outdoor unit 20 or the first inline pipe 30 is drawn out through the third port, wherein the first port is selectively communicated with one of the second port and the third port, or the second port is selectively communicated with one of the first port and the third port. The refrigerant may be filled into the third refrigerant inlet/outlet 201 or the first integrated pipe 30 through the three ports. Optionally, the device with the ejector pin may be disposed at the three ports, and the refrigerant charging of the first integrated pipe 30 is performed by the fourth three-way valve, so as to ensure the refrigerant charging of the first integrated pipe 30.

When the second control device 80 includes the fourth two-way valve, the fourth two-way valve has two ports, which are named as a port and a port, respectively, the port is connected to the first integrated pipe 30, the port is connected to the third refrigerant inlet/outlet 201, the device with the ejector pin can be disposed at the port, and the refrigerant filling of the first integrated pipe 30 is performed through the fourth two-way valve, so as to ensure the refrigerant filling of the first integrated pipe 30.

When the second control device 80 includes the fourth check valve, the conduction direction of the fourth check valve is the same as the flow direction of the refrigerant in the refrigerant flow path. When the second refrigerant filling apparatus 100 includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the refrigerant may be filled into the third refrigerant inlet/outlet 201 of the outdoor unit 20 or the first integrated pipe 30 through a fourth check valve.

In another embodiment, the second coupling line 40 cannot be filled with refrigerant by the second control device 80. For example, the second control device 80 may be a second trigger control valve.

Optionally, the air conditioner further includes a third refrigerant charging device 200 and a third control device 90. The third refrigerant filling device 200 is disposed at one end of the second coupling pipe 40, and is configured to fill the second coupling pipe 40 with the refrigerant; the third control device 90 is arranged at the other end of the second coupling pipe 40 and is configured to control the on-off of the second coupling pipe 40; one of the third refrigerant filling device 200 and the third control device 90 is connected to the first control device 70, and the other of the third refrigerant filling device 200 and the third control device 90 is connected to the fourth refrigerant inlet/outlet 202 of the outdoor unit 20.

The refrigerant is filled into the second coupler pipe 40 through the third refrigerant filling device 200, the refrigerant flows into the second coupler pipe 40, air in the second coupler pipe 40 is discharged, the other end of the second coupler pipe 40 is controlled to be disconnected through the second control device 80 at the moment, the refrigerant in the second coupler pipe 40 is prevented from flowing out of the other end of the second coupler pipe 40, and therefore the second coupler pipe 40 does not need to be vacuumized before the air conditioner is installed, the installation efficiency of the air conditioner is improved, the installation cost of the air conditioner is reduced, vacuumizing equipment is not needed, and the installation cost of the air conditioner is further reduced.

Optionally, the third refrigerant filling device 200 includes a fifth quick coupling, a fifth three-way valve, a fifth two-way valve, or a fifth one-way valve. The third refrigerant filling device 200 and the third control device 90 will be described below by taking an example in which the third refrigerant filling device 200 is connected to the first control device 70 and the third control device 90 is connected to the fourth refrigerant inlet/outlet 202.

When the third refrigerant filling device 200 includes the fifth quick coupling, if the first control device 70 includes the second quick coupling, the fifth quick coupling and the second quick coupling are the same component, that is, the same quick coupling, and a male end of the quick coupling is disposed on one of the second refrigerant inlet/outlet 102 and the second coupling pipe 40 of the indoor unit 10, and a female end of the quick coupling is disposed on the other of the second refrigerant inlet/outlet 102 and the second coupling pipe 40.

When the third refrigerant charging device 200 includes the fifth quick coupling, if the first control device 70 does not include the first quick coupling, the male connector of the fifth quick coupling is connected to the first control device 70, and the interface of the first control device 70 for connecting with the second coupling pipe 40 forms one of the male connector and the female connector of the fifth quick coupling, and the other of the male connector and the female connector of the fifth quick coupling is disposed on the second coupling pipe 40.

The fifth quick joint adopts a type with two closed ends.

When the third refrigerant filling device 200 includes a fifth three-way valve, the fifth three-way valve has three ports, which are named as a port, a port and a port, the port is connected to the first control device 70, the port is connected to the second coupler 40, and the port is used as a maintenance port, and when maintenance is required, refrigerant in the indoor unit 10 or the second coupler 40 is pumped out through the port, wherein the port is selectively communicated with one of the port and the port, or the port is selectively communicated with one of the port and the port. The second refrigerant inlet/outlet 102 or the second coupler pipe 40 may be filled with refrigerant through a triple joint. Optionally, the device with the ejector pin may be disposed at the three ports, and the refrigerant filling of the second coupling pipe 40 is performed by a fifth three-way valve, so as to ensure the refrigerant filling of the second coupling pipe 40.

When the third refrigerant filling device 200 includes the fifth two-way valve, the fifth two-way valve has two ports, which are named as a port and a port, respectively, the port is connected to the second coupler pipe 40, the port is connected to the first control device 70, the device with the ejector pin can be disposed at the port, and the fifth two-way valve is used to fill the second coupler pipe 40 with the refrigerant, so as to ensure the refrigerant filling of the second coupler pipe 40.

When the third refrigerant filling device 200 includes the fifth check valve, the conduction direction of the fifth check valve is the same as the flow direction of the refrigerant in the refrigerant flow path. When the third refrigerant filling device 200 includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the refrigerant may be filled into the second coupling pipe 40 of the indoor unit 10 through a fifth check valve.

Optionally, the indoor unit 10 further includes a third control device 90, and the third control device 90 is disposed on the second coupling pipe 40 and configured to control on/off of the second coupling pipe 40.

When the refrigerant is charged into the second coupling pipe 40 by the third refrigerant charging device 200, the second coupling pipe 40 is controlled to be disconnected by the third control device 90, and the refrigerant charged into the second coupling pipe 40 is prevented from flowing out of the second coupling pipe 40 from the second refrigerant inlet/outlet 102.

In a specific embodiment, the second coupling pipe 40 may also be filled with the refrigerant through the third control device 90, for example, the third control device 90 includes a sixth quick coupling, a sixth three-way valve, a sixth one-way valve or a sixth two-way valve, in other words, the third control device 90 is further configured to fill the second coupling pipe 40 with the refrigerant, so as to fill the second coupling pipe 40 with the refrigerant and exhaust the air in the second coupling pipe 40, so that the second coupling pipe 40 does not need to be evacuated.

When the third control device 90 includes a sixth quick coupling, a male end of the sixth quick coupling is disposed at one of the fourth refrigerant inlet and outlet 202 of the outdoor unit 20 and the second coupling pipe 40, and a female end of the sixth quick coupling is disposed at the other of the fourth refrigerant inlet and outlet 202 and the second coupling pipe 40.

The male head of the sixth quick connector is arranged at the fourth refrigerant inlet and outlet 202, the female head of the sixth quick connector is arranged at the position, close to the fourth refrigerant inlet and outlet 202, of the second connector pipe 40, when the male head and the female head of the sixth quick connector are connected, the sixth quick connector is conducted, and the fourth refrigerant inlet and outlet 202 and the second connector pipe 40 are communicated through the sixth quick connector. Or the female head of the sixth quick connector is arranged at the fourth refrigerant inlet and outlet 202, the male head is arranged at the position, close to the fourth refrigerant inlet and outlet 202, of the second connector pipe 40, when the male head and the female head of the sixth quick connector are connected, the sixth quick connector is conducted, and the fourth refrigerant inlet and outlet 202 and the second connector pipe 40 are communicated through the sixth quick connector.

The sixth quick joint adopts a type of six quick joints with two closed ends.

The sixth quick coupling is provided, so that the refrigerant can be directly filled at the fourth refrigerant inlet/outlet 202, and the refrigerant filled through the fourth refrigerant inlet/outlet 202 flows into the refrigerant flow path of the outdoor unit 20, thereby eliminating the need to vacuumize the outdoor unit 20. The second coupling pipe 40 may also be filled with refrigerant via a sixth quick connector, so that no vacuum needs to be drawn on the second coupling pipe 40.

When the third control device 90 includes a sixth three-way valve, the sixth three-way valve has three ports, which are named as a first port, a second port and a third port, the first port is connected to the fourth refrigerant inlet/outlet 202, the second port is connected to the second joint pipe 40, and the third port is used as a maintenance port, and when maintenance is required, refrigerant in the outdoor unit 20 or the second joint pipe 40 is pumped out through the third port, wherein the first port is selectively communicated with one of the second port and the third port, or the second port is selectively communicated with one of the first port and the third port. The fourth refrigerant inlet and outlet 202 or the second coupling pipe 40 may be filled with the refrigerant through the three ports. Optionally, the device with the ejector pin may be disposed at the three ports, and the second coupling pipe 40 is filled with the refrigerant through the sixth three-way valve, so as to ensure that the second coupling pipe 40 is filled with the refrigerant.

When the third control device 90 includes the sixth two-way valve, the sixth two-way valve has two interfaces, which are named as a first interface and a second interface respectively, the first interface is connected to the second coupler pipe 40, the second interface is connected to the fourth refrigerant inlet/outlet 202, the device with the ejector pin can be disposed at the first interface, and the sixth two-way valve is used to fill the second coupler pipe 40 with the refrigerant, so as to ensure the filling of the second coupler pipe 40 with the refrigerant.

When the third control device 90 includes the sixth check valve, the conduction direction of the sixth check valve is the same as the flow direction of the refrigerant in the refrigerant flow path. When the third refrigerant filling apparatus 200 includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the refrigerant may be filled into the fourth refrigerant inlet/outlet 202 of the outdoor unit 20 or the second coupling pipe 40 through a sixth check valve.

In another embodiment, the second coupler tube 40 cannot be filled with refrigerant through the third control device 90. For example, the third control device 90 may be a third wrench-type control valve.

Optionally, as shown in fig. 1 and 2, one of the third refrigerant inlet/outlet 201 and the fourth refrigerant inlet/outlet 202 of the outdoor unit 20 is connected to a fourth refrigerant filling device 300, and the other is connected to a fourth control device 400, the fourth refrigerant filling device 300 is configured to fill the outdoor unit 20 with the refrigerant and discharge air in the refrigerant flow path of the outdoor unit 20, so that the outdoor unit 20 does not need to be vacuumized, and the installation efficiency of the air conditioner is further improved. The fourth control device 400 is configured to control the opening and closing of the refrigerant flow path of the outdoor unit 20.

When the refrigerant is charged into the outdoor unit 20 by the fourth refrigerant charging device 300, the fourth control device 400 is closed, and the refrigerant charged into the outdoor unit 20 is prevented from flowing out of the fourth control device 400.

The fourth refrigerant filling device 300 includes a seventh quick coupling, a seventh three-way valve, a seventh two-way valve, or a seventh check valve. For example, the fourth refrigerant filling device 300 is connected to the second control device 80 and disposed at the third refrigerant inlet/outlet 201, and the fourth control device 400 is connected to the third control device 90 and disposed at the fourth refrigerant inlet/outlet 202.

When the fourth refrigerant filling device 300 includes a seventh quick coupling, if the second control device 80 includes a fourth quick coupling, the seventh quick coupling and the fourth quick coupling are the same component, that is, the same quick coupling, a male head of the quick coupling is disposed on one of the other end of the first pipe 30 and the third refrigerant inlet/outlet 201, and a female head of the quick coupling is disposed on the other of the other end of the first pipe 30 and the third refrigerant inlet/outlet 201.

The seventh quick joint adopts a type with two closed ends.

When the fourth refrigerant filling device 300 includes a seventh three-way valve, the seventh three-way valve has three ports, which are named as a port, a port and a port, the port is connected to the second control device 80, the port is connected to the first in-line pipe 30, and the port is used as a maintenance port, and when maintenance is required, refrigerant in the outdoor unit 20 or the first in-line pipe 30 is pumped out through the port, wherein the port is selectively communicated with one of the port and the port, or the port is selectively communicated with one of the port and the port. The refrigerant may be filled into the third refrigerant inlet/outlet 201 or the first integrated pipe 30 through the three ports. Optionally, the device with ejector pins may be disposed at the three ports, and the refrigerant filling is performed on the outdoor unit 20 through the seventh three-way valve, so as to ensure the refrigerant filling of the outdoor unit 20.

When the fourth refrigerant filling device 300 includes the seventh two-way valve, the seventh two-way valve has two ports, which are named as a port and a port, respectively, the port is connected to the first connecting pipe 30, the port is connected to the second control device 80, the device with the ejector pin can be disposed at the port, and the refrigerant filling is performed on the outdoor unit 20 through the seventh two-way valve, so as to ensure the refrigerant filling of the outdoor unit 20.

When the fourth refrigerant filling device 300 includes the seventh check valve, the communication direction of the seventh check valve is the same as the flowing direction of the refrigerant in the refrigerant flow path. When the fourth refrigerant filling device 300 includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the refrigerant may be filled into the outdoor unit 20 through a seventh check valve.

In a specific embodiment, the refrigerant may also be filled into the outdoor unit 20 through the fourth control device 400, for example, the fourth control device 400 includes an eighth quick coupling, an eighth three-way valve, an eighth one-way valve, or an eighth two-way valve, in other words, the fourth control device 400 is further configured to fill the refrigerant into the outdoor unit 20, so as to fill the refrigerant into the outdoor unit 20 and discharge the air in the outdoor unit 20, so that the outdoor unit 20 does not need to be vacuumized.

When the fourth control device 400 includes the eighth quick coupling, when the second control device 80 includes the fourth quick coupling, the eighth quick coupling and the fourth quick coupling are the same quick coupling.

When the second control device 80 does not include the fourth quick coupling, the eighth quick coupling is provided such that the male connector of the eighth quick coupling is disposed at one of the fourth refrigerant inlet/outlet 202 of the outdoor unit 20 and the second coupling pipe 40, and the female connector of the eighth quick coupling is disposed at the other of the fourth refrigerant inlet/outlet 202 and the second coupling pipe 40. The male head of the eighth quick connector is arranged at the fourth refrigerant inlet and outlet 202, the female head of the eighth quick connector is arranged at the position, close to the fourth refrigerant inlet and outlet 202, of the second connector pipe 40, when the male head and the female head of the eighth quick connector are connected, the eighth quick connector is conducted, and the fourth refrigerant inlet and outlet 202 and the second connector pipe 40 are communicated through the eighth quick connector. Or the female head of the eighth quick connector is arranged at the fourth refrigerant inlet and outlet 202, the male head is arranged at the position, close to the fourth refrigerant inlet and outlet 202, of the second connector pipe 40, when the male head and the female head of the eighth quick connector are connected, the eighth quick connector is conducted, and the fourth refrigerant inlet and outlet 202 and the second connector pipe 40 are communicated through the eighth quick connector.

The eighth quick joint adopts a type with two closed ends.

The eighth quick coupling is provided, so that the refrigerant can be directly filled at the fourth refrigerant inlet/outlet 202, and the refrigerant filled through the fourth refrigerant inlet/outlet 202 flows into the refrigerant flow path of the outdoor unit 20, thereby eliminating the need to vacuumize the outdoor unit 20. The second coupling pipe 40 may also be filled with refrigerant through an eighth quick connector, so that the second coupling pipe 40 does not need to be evacuated.

When the fourth control device 400 includes an eighth three-way valve, the eighth three-way valve has three ports, which are named as a first port, a second port, and a third port, the first port is connected to the fourth refrigerant inlet/outlet 202, the second port is connected to the second joint pipe 40, and the third port is used as a maintenance port, and when maintenance is required, refrigerant in the outdoor unit 20 or the second joint pipe 40 is drawn out through the third port, wherein the first port is selectively communicated with one of the second port and the third port, or the second port is selectively communicated with one of the first port and the third port. The fourth refrigerant inlet and outlet 202 or the second coupling pipe 40 may be filled with the refrigerant through the three ports. Optionally, the apparatus with ejector pins may be disposed at the three ports, and the refrigerant filling is performed on the outdoor unit 20 through the eighth three-way valve, so as to ensure the refrigerant filling of the outdoor unit 20.

When the fourth control device 400 includes the eighth two-way valve, the eighth two-way valve has two ports, which are named as a port and a port, respectively, the port is connected to the second coupler pipe 40, the port is connected to the fourth refrigerant inlet/outlet 202, and a device with a thimble is disposed at the port, so that refrigerant filling is performed on the outdoor unit 20 through the eighth two-way valve, thereby ensuring refrigerant filling of the outdoor unit 20.

When the fourth control device 400 includes the eighth check valve, the conduction direction of the eighth check valve is the same as the flow direction of the refrigerant in the refrigerant flow path. When the third refrigerant filling apparatus 200 includes a check valve, the air conditioner may be a single-cooling type air conditioner, and the refrigerant may be filled into the fourth refrigerant inlet/outlet 202 of the outdoor unit 20 or the second coupling pipe 40 through an eighth check valve.

In another embodiment, the refrigerant cannot be charged into the outdoor unit 20 by the fourth control device 400. For example, the fourth control device 400 may be a fourth wrench-type control valve.

An embodiment of the present disclosure provides an assembling method for an air conditioner as in any one of the above embodiments, as shown in fig. 7, including:

in step S70, the first refrigerant filling device 60 fills the first refrigerant inlet/outlet 101 of the indoor unit 10 with the refrigerant to discharge the air in the indoor unit 10.

The first refrigerant filling device 60 is used for filling the refrigerant into the first refrigerant inlet and outlet 101 of the indoor unit 10, and the refrigerant flows into the refrigerant flow path of the indoor unit 10 and exhausts the air in the refrigerant flow path of the indoor unit 10, so that the indoor unit 10 mounted in the air conditioner does not need to be vacuumized, the mounting efficiency of the indoor unit 10 is improved, the mounting cost of the air conditioner is reduced, vacuumizing equipment is not needed, and the mounting cost of the air conditioner is further reduced.

Alternatively, the step S70 of filling the refrigerant into the first refrigerant inlet/outlet 101 of the indoor unit 10 by the first refrigerant filling device 60 further includes:

the first control means 70 is controlled to be switched off.

When the first refrigerant filling device 60 fills the indoor unit 10 with the refrigerant, the first control device 70 controls the second refrigerant inlet/outlet 102 to be opened, so as to prevent the refrigerant filled into the indoor unit 10 from flowing out of the indoor unit 10 from the second refrigerant inlet/outlet 102.

Optionally, as shown in fig. 8, the assembling method includes:

in step S802, the first refrigerant filling device 60 fills the first refrigerant inlet/outlet 101 of the indoor unit 10 with the refrigerant to discharge the air in the indoor unit 10.

In step S804, the first control device 70 is controlled to be turned off.

In step S806, the second refrigerant filling apparatus 100 fills the first integrated pipe 30 with the refrigerant to discharge air in the first integrated pipe 30.

In step S808, the second control device 80 is controlled to be turned off.

Annotate the refrigerant through second refrigerant filling device 100 in to first online pipe 30, the refrigerant flows in first online pipe 30, the air in the first online pipe 30 of discharge, the other end disconnection of first online pipe 30 is controlled through second controlling means 80 this moment, prevent that the refrigerant in the first online pipe 30 from flowing out from the other end of first online pipe 30, thereby first online pipe 30 need not the evacuation before making the air conditioner installation, improve the installation effectiveness of air conditioner, reduce the installation cost of air conditioner, and need not the evacuation equipment, the installation cost of air conditioner has further been reduced.

In step S810, the second coupling pipe 40 is filled with the refrigerant by the third refrigerant filling apparatus 200 to discharge air in the second coupling pipe 40.

In step S812, the third control device 90 is controlled to be turned off.

Step S802 and step S804 complete the filling of the refrigerant in the indoor unit, so as to achieve the vacuum-pumping-free indoor unit. Step S806 and step S808 complete filling of the refrigerant in the first online pipe, so as to achieve vacuum-free first online pipe. Step S810 and step S812 complete filling of the refrigerant in the second coupling pipe, so as to achieve vacuum-free second coupling pipe. The first linkage pipe, the second linkage pipe and the refrigerant in the indoor unit are not filled in sequence.

The refrigerant is filled into the second coupler pipe 40 through the third refrigerant filling device 200, the refrigerant flows into the second coupler pipe 40, air in the second coupler pipe 40 is discharged, the other end of the second coupler pipe 40 is controlled to be disconnected through the second control device 80 at the moment, the refrigerant in the second coupler pipe 40 is prevented from flowing out of the other end of the second coupler pipe 40, and therefore the second coupler pipe 40 does not need to be vacuumized before the air conditioner is installed, the installation efficiency of the air conditioner is improved, the installation cost of the air conditioner is reduced, vacuumizing equipment is not needed, and the installation cost of the air conditioner is further reduced.

The air conditioner and the assembly method of the present application are described below with the first refrigerant filling device 60 disposed at the first refrigerant inlet and outlet 101, the first control device 70 disposed at the second refrigerant inlet and outlet 102, the second refrigerant filling device 100 disposed at one end of the first integrated pipe 30, the second control device 80 disposed at the other end of the first integrated pipe 30, the third refrigerant filling device 200 disposed at one end of the second integrated pipe 40, the third control device 90 disposed at the other end of the second integrated pipe 40, the fourth refrigerant filling device 300 disposed at the third refrigerant inlet and outlet 201, and the fourth control device 400 disposed at the fourth refrigerant inlet and outlet 202, where the first refrigerant filling device 60 is connected to the second refrigerant filling device 100, the first control device 70 is connected to the third refrigerant filling device 200, the second control device 80 is connected to the fourth refrigerant filling device 300, and the third control device 90 is connected to the fourth control device 400.

In a first specific embodiment, the first refrigerant filling device 60 is a first quick connector, the second refrigerant filling device is a second quick connector, the first quick connector and the second quick connector are the same quick connector, one of a male connector and a female connector of the first quick connector is disposed on the first refrigerant inlet/outlet 101, and the other of the male connector and the female connector of the first quick connector is disposed at one end of the first on-line pipe 30, or it is understood that the first refrigerant filling device 60 and the second refrigerant filling device 100 are the male connector and the female connector of the same quick connector, respectively, or the first refrigerant filling device 60 and the second refrigerant filling device 100 are the female connector and the male connector of the same quick connector, respectively. The first control device 70 is a second quick coupling, the third refrigerant charging device 200 is a fifth quick coupling, the second quick coupling and the fifth quick coupling are the same, one of a male head and a female head of the second quick coupling is arranged on the second refrigerant inlet/outlet 102, the other of the male head and the female head of the second quick coupling is arranged at one end of the second coupling pipe 40, or the first control device 70 and the third refrigerant charging device 200 are respectively the male head and the female head of the same quick coupling, or the first control device 70 and the third refrigerant charging device 200 are respectively the female head and the male head of the same quick coupling. The second control device 80 is a fourth quick coupling, one of a male joint and a female joint of the fourth quick coupling is disposed at the other end of the first integrated pipe 30, the fourth refrigerant charging device 300 is a seventh three-way valve, and an interface on the seventh three-way valve, which is used for being connected with the first integrated pipe 30, forms the other of the male joint and the female joint of the fourth quick coupling. The third control device 90 is a sixth quick coupling, the fourth control device 400 is an eighth two-way valve, one of a male connector and a female connector of the sixth quick coupling is arranged at the other end of the second coupling pipe 40, and an interface on the eighth two-way valve, which is used for being connected with the second coupling pipe 40, forms the other of the male connector and the female connector of the sixth quick coupling.

The refrigerant (refrigerant) filling amount of the part of the air conditioner outdoor unit 20 is a, the refrigerant filling amount of the pipelines such as the evaporator (indoor heat exchanger) of the air conditioner indoor unit 10 is b, the total refrigerant filling amount in the first coupling pipe 30 and the second coupling pipe 40 is c, and the total refrigerant filling amount is a + b + c.

The air conditioner is filled according to the determined refrigerant quantity in advance before leaving a factory according to three parts, namely a part, a part and a part, wherein the three parts are provided with quick joint devices and can be directly filled with refrigerant.

When the air conditioner is installed, the quick connectors of the indoor unit 10, the outdoor unit 20, the first coupling pipe 30 and the second coupling pipe 40 are respectively connected quickly and seamlessly without vacuum pumping operation.

In the second embodiment, as shown in fig. 4, unlike the first embodiment, the second control device 80 is a second wrench-type control valve, the third control device 90 is a third wrench-type control valve, and the structure of the wrench-type control valve is shown in fig. 4.

The amount of the partially charged refrigerant of the outdoor unit 20 of the air conditioner is a, the amount of the partially charged refrigerant of the evaporator of the indoor unit 10 of the air conditioner is b, the total amount of the charged refrigerant in the first and second coupling pipes 30 and 40 is c, and the total amount of the charged refrigerant is a + b + c.

The air conditioner is filled according to the determined refrigerant quantity in advance before leaving a factory according to three parts, namely a part, a part and a part, wherein the three parts are provided with quick joint devices and can be directly filled with refrigerant.

When the air conditioner is installed, a vacuumizing operation is not required, the first refrigerant inlet and outlet 101 of the indoor unit 10 is directly and seamlessly communicated with one end of the first linkage pipe 30 through the first quick connector, the third refrigerant inlet and outlet 201 of the outdoor unit 20 is connected with the bell mouth of the second wrench-type control valve at the other end of the first linkage pipe 30, the fourth refrigerant inlet and outlet 202 of the outdoor unit 20 is connected with the bell mouth of the third wrench-type control valve at the other end of the second linkage pipe 40, after the connection is completed (a communicated refrigerant flow path is formed), the second wrench-type control valve and the third wrench-type control valve are opened, and meanwhile, the eighth two-way valve and the seventh three-way valve are unscrewed through an inner hexagon, so that the whole set of system is connected.

In a third specific embodiment, as shown in fig. 5, the first refrigerant filling device 60 is a first three-way valve, the second refrigerant filling device 100 is a third two-way valve, a connection portion of the first three-way valve and the third two-way valve forms one of a male joint and a female joint, a connection portion of the third two-way valve and the first three-way valve forms the other of the male joint and the female joint, the male joint and the female joint are spliced to form a quick coupling, and the quick coupling is a quick coupling with two closed ends. The first control device 70 is a second two-way valve, the third refrigerant filling device 200 is a fifth one-way valve, a connection portion of the second two-way valve and the fifth one-way valve forms one of a male connector and a female connector, a connection portion of the fifth one-way valve and the second two-way valve forms the other of the male connector and the female connector, the male connector and the female connector are spliced to form a quick connector, and the quick connector is a quick connector with two closed ends. The second control device 80 is a fourth check valve, the fourth refrigerant charging device 300 is a seventh three-way valve, an interface on the seventh three-way valve, which is used for being connected with the first on-line pipe 30, forms one of a male head and a female head of a quick coupling, an interface on the fourth check valve, which is used for being connected with the third refrigerant inlet/outlet 201, forms the other of the male head and the female head of the quick coupling, and the quick coupling is a quick coupling with two closed ends. The third control device 90 is a sixth two-way valve, the fourth control device 400 is an eighth two-way valve, a port on the sixth two-way valve, which is used for being connected with the eighth two-way valve, forms one of a male head and a female head of a quick connector, a port on the eighth two-way valve, which is used for being connected with the sixth two-way valve, forms the other of the male head and the female head of the quick connector, and the quick connector is a quick connector with two closed ends.

The amount of the partially charged refrigerant of the outdoor unit 20 of the air conditioner is a, the amount of the partially charged refrigerant of the evaporator of the indoor unit 10 of the air conditioner is b, the total amount of the charged refrigerant in the first and second coupling pipes 30 and 40 is c, and the total amount of the charged refrigerant is a + b + c.

The air conditioner is filled according to the a + b + c three parts according to the preset refrigerant quantity before leaving a factory, and the three parts can be directly filled with the refrigerant.

When the air conditioner is installed, the operation of vacuumizing is not needed, after the indoor unit 10, the first connecting pipe 30, the second connecting pipe 40 and the outdoor unit 20 are connected by a wrench, all the valves of the two-way valve and the three-way valve are opened by an inner hexagon, so that the indoor unit and the outdoor unit of the air conditioner are communicated.

In a fourth specific embodiment, as shown in fig. 6, the first refrigerant filling device 60 is a first three-way valve, the second refrigerant filling device 100 is a third three-way valve, a junction of the first three-way valve and the third three-way valve forms one of a male joint and a female joint, a junction of the third three-way valve and the third three-way valve forms the other of the male joint and the female joint, the male joint and the female joint form a quick coupling, and the quick coupling is a quick coupling with two closed ends. The first control device 70 is a second two-way valve, the third refrigerant filling device 200 is a fifth three-way valve, a joint of the second two-way valve and the fifth three-way valve forms one of a male joint and a female joint, a joint of the fifth three-way valve and the second two-way valve forms the other of the male joint and the female joint, the male joint and the female joint are spliced to form a quick coupling, and the quick coupling is a quick coupling with two closed ends. The second control device 80 is a fourth two-way valve, the fourth refrigerant charging device 300 is a seventh three-way valve, an interface of the seventh three-way valve, which is used for being connected with the first in-line pipe 30, forms one of a male head and a female head of a quick coupling, an interface of the fourth two-way valve, which is used for being connected with the third refrigerant inlet/outlet 201, forms the other of the male head and the female head of the quick coupling, and the quick coupling is a quick coupling with two closed ends. The third control device 90 is a sixth two-way valve, the fourth control device 400 is an eighth two-way valve, a port on the sixth two-way valve, which is used for being connected with the eighth two-way valve, forms one of a male head and a female head of a quick connector, a port on the eighth two-way valve, which is used for being connected with the sixth two-way valve, forms the other of the male head and the female head of the quick connector, and the quick connector is a quick connector with two closed ends.

The amount of the partially charged refrigerant of the outdoor unit 20 of the air conditioner is a, the amount of the charged refrigerant of the evaporator and other pipelines of the indoor unit 10 of the air conditioner is b, the total amount of the charged refrigerant in the first and second united pipes 30 and 40 is c, and the total amount of the charged refrigerant is: a + b + c.

The air conditioner is filled according to the a + b + c three parts according to the preset refrigerant quantity before leaving a factory, and the three parts can be directly filled with the refrigerant.

When the air conditioner is installed, the operation of vacuumizing is not needed, after the indoor unit 10, the first connecting pipe 30, the second connecting pipe 40 and the outdoor unit 20 are connected by a wrench, all the valves of the two-way valve and the three-way valve are opened by an inner hexagon, so that the indoor unit and the outdoor unit of the air conditioner are communicated.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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 indoor unit of an air conditioner, comprising:

and the first refrigerant filling device is arranged at a first refrigerant inlet and outlet of the indoor unit and is configured to fill refrigerant into the indoor unit.

2. The indoor unit according to claim 1, further comprising:

and the first control device is arranged at a second refrigerant inlet and outlet of the indoor unit and is configured to control the on-off of the second refrigerant inlet and outlet.

3. The indoor unit according to claim 1 or 2,

the first refrigerant filling device comprises a first quick joint, a first three-way valve, a first two-way valve or a first one-way valve.

4. The indoor unit according to claim 2,

the first control device comprises a second quick joint, a second three-way valve, a second one-way valve, a second two-way valve or a first wrench type control valve.

5. An air conditioner, comprising:

an outdoor unit;

a first on-line pipe;

a second coupler tube; and

an indoor unit of an air conditioner according to any one of claims 1 to 4;

the outdoor unit, the first coupling pipe, the indoor unit and the second coupling pipe are communicated to form a refrigerant flow path.

6. The air conditioner according to claim 5, further comprising:

the second refrigerant filling device is arranged at one end of the first integrated pipe and is configured to fill refrigerant into the first integrated pipe;

the second control device is arranged at the other end of the first on-line pipe and is configured to control the on-off of the first on-line pipe;

one of the second refrigerant filling device and the second control device is connected with the first refrigerant filling device, and the other of the second refrigerant filling device and the second control device is connected with a third refrigerant inlet and outlet of the outdoor unit.

7. The air conditioner according to claim 6,

the second refrigerant filling device comprises a third quick joint, a third three-way valve, a third two-way valve or a third one-way valve;

the second control device comprises a fourth quick joint, a fourth three-way valve, a fourth one-way valve, a fourth two-way valve or a second wrench type control valve.

8. The air conditioner according to any one of claims 5 to 7, further comprising:

the third refrigerant filling device is arranged at one end of the second coupling pipe and is configured to fill refrigerant into the second coupling pipe;

the third control device is arranged at the other end of the second connecting pipe and is configured to control the connection and disconnection of the second connecting pipe;

one of the third refrigerant filling device and the third control device is connected with the first control device, and the other of the third refrigerant filling device and the third control device is connected with a fourth refrigerant inlet and outlet of the outdoor unit.

9. The air conditioner according to claim 8,

the third refrigerant filling device comprises a fifth quick joint, a fifth three-way valve, a fifth two-way valve or a fifth one-way valve;

the third control device comprises a sixth quick joint, a sixth three-way valve, a sixth one-way valve, a sixth two-way valve or a third wrench type control valve.

10. The air conditioner according to any one of claims 5 to 7, further comprising:

a fourth refrigerant filling device provided at one of a third refrigerant inlet/outlet and a fourth refrigerant inlet/outlet of the outdoor unit, and configured to fill a refrigerant into the one of the third refrigerant inlet/outlet and the fourth refrigerant inlet/outlet;

and a fourth control device provided at the other of the third refrigerant inlet/outlet and the fourth refrigerant inlet/outlet, and configured to control on/off of the other of the third refrigerant inlet/outlet and the fourth refrigerant inlet/outlet.

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