WO2021189673A1

WO2021189673A1 - Connecting pipe assembly and air conditioner

Info

Publication number: WO2021189673A1
Application number: PCT/CN2020/095839
Authority: WO
Inventors: 张晶晶
Original assignee: 广东美的制冷设备有限公司
Priority date: 2020-03-26
Filing date: 2020-06-12
Publication date: 2021-09-30

Abstract

A connecting pipe assembly (100) and an air conditioner, wherein the connecting pipe assembly (100) is used to connect an indoor unit and an outdoor unit of an air conditioner. The connecting pipe assembly (100) comprises: refrigerant pipes (10), one end of each refrigerant pipe (10) being connected to an indoor unit, and the other end of each refrigerant pipe (10) being connected to an outdoor unit; buffer members (30), the buffer members (30) being sleeved on the outer periphery of each refrigerant pipe (10); and a fixing sleeve (50), wherein the fixing sleeve (50) is sleeved on the buffer members (30) and is fixed to the refrigerant pipes (10).

Description

Connecting pipe assembly and air conditioner

This application requires the application on March 26, 2020, with the application number of 202020410529.1, the name of "connecting pipe assembly and air conditioner", and the application on March 26, 2020, with the application number of 202010226610.9 and the name of "connecting pipe assembly and air conditioner". The priority of the two Chinese patent applications for "air conditioner", the entire contents of which are incorporated in this application by reference.

Technical field

This application relates to the technical field of air conditioners, in particular to a connecting pipe assembly and an air conditioner.

Background technique

The indoor unit and outdoor unit of the air conditioner need to be connected through pipelines. In the related art, most of the refrigerant pipes that play a role in the connection are arranged on the outer surface of the pipeline. In this way, the pipeline is connected and installed. , It is prone to deformation or bending, which reduces the performance of the pipeline for gas or liquid infusion. Moreover, when fixing the refrigerant pipe, a long cable tie is usually wound on the outermost layer of the refrigerant pipe. The fixing and installation of the pipe are also relatively Inconvenience, it is easy to cause loose binding and loosening.

The above content is only used to assist the understanding of the technical solution of the application, and does not mean that the above content is recognized as prior art.

Summary of the invention

technical problem

The solution to the problem

Technical solutions

The main purpose of this application is to provide a connecting pipe assembly, which aims to connect the indoor unit and the outdoor unit of the air conditioner conveniently and quickly, and to reduce the risk of damage to the refrigerant pipe.

In order to achieve the above-mentioned purpose, the connecting pipe assembly proposed in this application is used to connect the indoor unit and the outdoor unit of an air conditioner, and the connecting pipe assembly includes:

A refrigerant pipe, one end of the refrigerant pipe is connected to the indoor unit, and the other end of the refrigerant pipe is connected to the outdoor unit;

A buffer, the buffer is sleeved on the outer circumference of the refrigerant tube; and

The fixed sleeve is sleeved on the buffer member and fixed to the refrigerant tube.

In an embodiment of the present application, the buffer member is a tubular spring.

In an embodiment of the present application, the ratio of the extension length of the tubular spring to the extension length of the refrigerant pipe ranges from 0.5 to 1.

In an embodiment of the present application, the tubular spring is arranged in multiple sections, and the multiple sections of the tubular spring are arranged along the length direction of the refrigerant tube.

In an embodiment of the present application, the outer wall surface of the refrigerant pipe is provided with a threaded structure, and the buffer is installed on the threaded structure.

In an embodiment of the present application, the number of the refrigerant pipes is two, one of which is a refrigerant liquid pipe, the other of which is a refrigerant gas pipe, and the outer peripheral surface of each refrigerant pipe is sheathed with one of the refrigerant pipes. A buffer member, one of the fixed sleeves is sleeved on the outer peripheries of the two refrigerant pipes and the two buffer members.

In an embodiment of the present application, an insulation sleeve is further provided between the buffer member and the fixing sleeve, and the insulation sleeve is sleeved on the outside of the buffer member.

In an embodiment of the present application, a connecting cable is further provided in the fixing sleeve, and the connecting cable is arranged between the fixing sleeve and the thermal insulation sleeve.

In an embodiment of the present application, both ends of the refrigerant pipe are provided with quick connectors.

The present application also provides an air conditioner, which includes the above-mentioned connecting pipe assembly, and also includes an indoor unit and an outdoor unit, and the connecting pipe assembly connects the indoor unit and the outdoor unit.

The technical solution of the present application adopts a buffer member to be sleeved on the outer circumference of the refrigerant tube, so that the refrigerant tube is protected by the buffer member when the refrigerant tube is installed and fixed. The refrigerant pipe is not prone to bend or collapse. At the same time, a fixed sleeve is also sleeved on the outside of the buffer, and the fixed sleeve and the refrigerant pipe are fixed to each other, thereby replacing the existing cable tie solution, making the use and installation of the refrigerant pipe more convenient and faster, and further improving The effect of protecting the refrigerant pipe, thereby realizing the technical solution of double protection, enables the entire connecting pipe assembly to be conveniently and quickly connected to the indoor unit and the outdoor unit of the air conditioner, and reduces the risk of damage to the refrigerant pipe.

The beneficial effects of the invention

Brief description of the drawings

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on the structure shown in these drawings.

Fig. 1 is a schematic structural diagram of an embodiment of a connecting pipe assembly according to the present application;

Figure 2 is a schematic structural diagram of the connecting pipe assembly of the application with the fixing sleeve and the thermal insulation sleeve removed;

3 is a cross-sectional view of an embodiment of the quick connector of the connecting pipe assembly and the quick connector of the indoor unit or outdoor unit according to the present application.

Attached icon number description:

[Table 1]

标号Label	名称 name	标号Label		名称name
100100	连接管组件 Connecting pipe assembly	2020	快速接头 Quick Connector
1010	冷媒管Refrigerant pipe	21twenty one	第一本体部The first body part
1111	冷媒液管Refrigerant liquid pipe	23twenty three	第一密封堵头The first sealing plug
1313	冷媒气管 Refrigerant gas pipe	210210	第二本体部 Second body
3030	缓冲件 Buffer	230230	第二密封堵头 Second sealing plug
5050	固定套Fixed sleeve	200200	室内快速接头Indoor quick connector
7070	保温套 Insulation cover	300300	室外快速接头Outdoor quick connector

The realization, functional characteristics, and advantages of the purpose of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Invention embodiment

Embodiments of the present invention

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain each in a certain posture (as shown in the accompanying drawings). If the relative positional relationship between the components, the movement situation, etc., change in the specific posture, the directional indication will also change accordingly.

In this application, unless otherwise clearly specified and limited, the terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or a whole; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two components or an interaction relationship between two components, unless specifically defined otherwise. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In addition, the descriptions related to "first", "second", etc. in this application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" in the full text means including three parallel schemes, taking "A and/or B as an example", including scheme A, scheme B, or schemes in which both A and B meet. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist. , Is not within the scope of protection required by this application.

An air conditioner (not shown) generally includes an indoor unit and an outdoor unit. When connecting the indoor unit and the outdoor unit, a refrigerant pipe 10 that connects and transports the refrigerant of the indoor unit and the outdoor unit needs to be provided to realize the circulation of the refrigerant flow path. In order to overcome the technical problem that the refrigerant pipe 10 is easily damaged and inconvenient installation mentioned in the background art, with reference to FIG. 1 and FIG. 2, this application proposes a connecting pipe assembly 100 for connecting an indoor unit and an outdoor unit of an air conditioner , The connecting pipe assembly 100 includes a refrigerant pipe 10, a buffer 30 and a fixing sleeve 50. One end of the refrigerant pipe 10 is connected to the indoor unit, and the other end of the refrigerant pipe 10 is connected to the outdoor unit. The buffer member 30 is sleeved on the outer circumference of the refrigerant pipe 10. The fixing sleeve 50 is sleeved on the buffer member 30 and fixed to the refrigerant tube 10 with each other.

The fixing sleeve 50 can be a soft jacket, the shape can be cylindrical, and the material can be silicone, rubber, plastic, foam, or steel wire hose (the whole is plastic material, and the inside of the plastic material is provided with a mesh steel wire). In combination with the above installation method, the number of refrigerant pipes 10 can be two, one of which is refrigerant liquid pipe 11, the other of which is refrigerant gas pipe 13, and the outer peripheral surface of each refrigerant pipe 10 is sheathed with a buffer Piece 30, a fixed sleeve 50 is sleeved on the outer peripheries of the two refrigerant pipes 10 and the two buffer pieces 30. The pipe diameter of the refrigerant gas pipe 13 can be set to be smaller than the pipe diameter of the refrigerant liquid pipe 11. Therefore, the size of the buffer member 30 is also changed accordingly. A fixing sleeve 50 can replace the existing cable tie for bundling installation, thereby facilitating the quick assembly of the connecting pipe assembly 100 and saving labor costs. The buffer member 30 may be provided in the refrigerant liquid pipe 11 or the refrigerant gas pipe 13, or the buffer member 30 may be provided in the two pipeline refrigerant liquid pipes 11 and the refrigerant gas pipe 13. Further, a connecting cable (not shown) connecting the indoor unit and the outdoor unit can also be arranged in the fixing sleeve 50, thereby facilitating the overall installation and further saving labor costs.

The technical solution of the present application adopts a buffer member 30 to be sleeved on the outer circumference of the refrigerant tube 10, so that the refrigerant tube 10 is protected by the buffer member 30 when the refrigerant tube 10 is installed and fixed. The refrigerant pipe 10 is unlikely to be damaged such as bends or collapses. At the same time, a fixing sleeve 50 is also sleeved on the outside of the buffer member 30, and the fixing sleeve 50 and the refrigerant pipe 10 are fixed to each other, thereby replacing the existing cable tie solution, making the use and installation of the refrigerant pipe 10 more convenient and faster At the same time, the effect of protecting the refrigerant pipe 10 is further achieved, thereby realizing the technical solution of double protection, so that the entire connecting pipe assembly 100 can be conveniently and quickly connected to the indoor unit and the outdoor unit of the air conditioner, and the risk of damage to the refrigerant pipe 10 is reduced.

1 and 2 in combination, when setting the buffer 30, a solution that can be adopted in an embodiment is to set the buffer 30 as a tubular spring. By sheathing the tubular spring on the outer circumference of the refrigerant tube 10, the tubular spring itself can also have elastic deformation, so that the tubular spring can provide bearing capacity when the refrigerant tube 10 receives an external force. In addition, the overall structure of the tubular spring is relatively simple, and the installation is relatively convenient, which can facilitate the installation of the buffer member 30 and the refrigerant tube 10.

Furthermore, when the tubular spring is provided, the ratio of the extension length of the tubular spring to the extension length of the refrigerant tube 10 is 0.5 to 1. That is to say, when the tubular spring is set as a whole strip, it covers half of the refrigerant pipe 10, which can meet the basic protection requirements. It can also focus on protecting the refrigerant pipe 10 at the bending part. The length of the refrigerant pipe 10 is the same as that of the refrigerant pipe 10, and the protection effect is the best. Well, the overall structure of the refrigerant pipe 10 can be protected to the utmost extent.

Of course, in another embodiment, the tubular spring is arranged in multiple sections, and the multiple tubular springs are arranged along the length direction of the refrigerant tube 10. The tubular springs arranged in multiple sections can adapt the tubular springs to refrigerant tubes 10 of different specifications. For example, a 1-meter refrigerant tube 10 can be provided with two 50 cm buffer members 30, and then this buffer member 30 can also be adapted to a 50 cm refrigerant tube 10. In this way, the universal matching performance of the buffer member 30 can be improved. Of course, the tubular spring provided in multiple sections can also cover only a part of the refrigerant pipe 10, for example, the refrigerant pipe 10 that covers the bent portion.

In an embodiment of the present application, the outer wall surface of the refrigerant pipe 10 is provided with a threaded structure (not shown), and the buffer member 30 is mounted on the threaded structure. Through the thread structure, the installation of the buffer member 30 can be facilitated. When the buffer member 30 is a tubular spring, the tubular spring can also be installed in correspondence with the threads of the threaded structure. As a result, the installation of the buffer member 30 is more stable, and no movement occurs on the outer wall surface of the refrigerant pipe 10.

1, in an embodiment of the present application, an insulating sleeve 70 is further provided between the buffer member 30 and the fixing sleeve 50, and the insulating sleeve 70 is sleeved on the outside of the buffer member 30.

By covering the insulation sleeve 70 on the outside of the buffer member 30, the pipeline of the refrigerant pipe 10 can be insulated, preventing the condensation of the refrigerant pipe 10, reducing the heat exchange rate between the refrigerant pipe 10 and the outside, and saving energy. , Improve energy efficiency.

Further, when the refrigerant pipe 10 is set, the connecting cable is set between the fixed sleeve 50 and the thermal insulation sleeve 70. Therefore, the connecting cable and the refrigerant pipe 10 are separated by the insulating sleeve 70, so that the connecting cable will not be affected by the refrigerant in the refrigerant pipe 10 during use, and the safety and service life of the connecting cable are improved.

1 to 3 in combination, in an embodiment of the present application, both ends of the refrigerant pipe 10 are provided with quick connectors 20. The quick connector 20 can realize the quick docking installation of the connecting pipe assembly 100 and the indoor unit or outdoor unit. With reference to FIG. 3, the quick connector 20 connected to the refrigerant pipe 10 includes a first body portion 21 and a first sealing plug 23. A sealing ring is arranged on the outer peripheral surface of a sealing plug 23, a passage is arranged in the first body portion 21, and the first sealing plug 23 is movable in the passage through a spring. The quick connector (200, 300) connected to the indoor unit and/or the outdoor unit includes a second body part 210 and a second sealing plug 230. The second sealing plug 230 is movable in the second body part 210 through a spring. Through internal activities. When the second body part 210 is inserted into the first body part 21, the first sealing plug 23 pushes the movement of the second sealing plug 230, thereby realizing the communication of the flow path. The quick connector 20 provided in this way can be quickly installed, and external threads can be provided inside the first body part 21 and outside the second body part 210 to make the connection more stable. Instead of the existing welding or screwing installation method, the quick joint 20 of the present application is simple and quick to install, and has good sealing performance, which further reduces the workload of workers.

Of course, it is also possible to connect nuts at both ends of the refrigerant pipe 10, which is also within the protection scope of the present application.

In an embodiment of the present application, the connecting pipe assembly 100 may further include a flexible connecting pipe, one end of the flexible pipe is connected to the refrigerant pipe 10, and the other end of the connecting pipe is connected to the joint structure.

The refrigerant tube 10 may be a copper tube or an aluminum tube, and the flexible tube may be a plastic tube, a rubber tube or a steel wire tube (the whole is made of plastic material, and the inside of the plastic material is provided with a mesh steel wire). In this way, to realize the solution of the combination of soft and hard pipes, the length of the refrigerant pipe 10 can be set to be longer than the length of the connecting pipe, and the refrigerant pipe 10 using a hard copper pipe or an aluminum pipe is not easily deformed.

By adopting the connecting pipe between the refrigerant pipe 10 and the joint structure to be a flexible pipe, the joint structure is used to connect the indoor unit and the outdoor unit during the connection process. The refrigerant tube 10 itself will not be deformed, and the position where the deformation occurs is the position of the flexible tube. Because the connecting tube is a flexible tube, even the deformation will be restored by pressure when the refrigerant is passed through, thereby avoiding the refrigerant tube 10 in the prior art. The reduced performance of gas or liquid in the pipeline caused by the deformation improves the cooling or heating performance of the entire air conditioner.

In an embodiment of the present application, the refrigerant pipe 10 includes at least one flexible pipe. One end of the flexible pipe is connected to the indoor unit, and the other end of the flexible pipe is connected to the outdoor unit. 10 are fixed to each other.

In combination with the above installation method, the number of refrigerant pipes 10 can be two, one of which is refrigerant liquid pipe 11, the other of which is refrigerant gas pipe 13, and each refrigerant pipe 10 can be set as a flexible pipe. One of the refrigerant pipes 10 may be a flexible pipe. The refrigerant liquid pipe 11 includes at least one flexible pipe, and/or the refrigerant gas pipe 13 includes at least one flexible pipe. The overall pipe diameter of the refrigerant gas pipe 13 can be set to be smaller than the pipe diameter of the refrigerant liquid pipe 11. A fixing sleeve 50 can replace the existing cable tie for bundling installation, thereby facilitating the quick assembly of the connecting pipe assembly 100 and saving labor costs. Further, the connecting cable connecting the indoor unit and the outdoor unit can also be arranged in the fixed sleeve 50, thereby facilitating the overall installation and further saving labor costs.

In the technical solution of the present application, the refrigerant tube 10 is made into a flexible tube, thereby preventing the phenomenon that the existing hard refrigerant tube 10 cannot be restored after being deformed. A fixed sleeve 50 is sleeved on the outside of the refrigerant pipe 10, and the fixed sleeve 50 and the refrigerant pipe 10 are fixed to each other, thereby replacing the existing cable tie solution, making the use and installation of the refrigerant pipe 10 more convenient and faster, and further It has the effect of protecting the refrigerant pipe 10. Through the solution of the flexible pipe and the fixed sleeve 50, the entire connecting pipe assembly 100 can be conveniently and quickly connected to the indoor unit and the outdoor unit of the air conditioner, and the risk of damage to the refrigerant pipe 10 is reduced.

Further, the refrigerant pipe 10 includes a plurality of flexible pipes, and a refrigerant flow path is formed in each flexible pipe.

The arrangement of multiple flexible tubes is similar to capillary tubes, so that each flexible tube can form a refrigerant circuit. It is understandable that the refrigerant gas pipe 13 may include multiple flexible pipes, and the refrigerant gas pipe 13 may also include multiple flexible pipes. The arrangement of multiple flexible pipes can prevent one of the flexible pipes from being unusable when a failure occurs, and improve the overall working stability of the refrigerant pipe 10.

Furthermore, a plurality of flexible pipes are sheathed with binding bands on their outer circumferences. In order to make the installation and use of the multiple flexible pipes more convenient, hole straps are arranged inside the fixing sleeve 50 and on the outer peripheral side of the flexible pipe, which is convenient for installation and use.

This application also proposes an air conditioner, which includes an indoor unit, an outdoor unit, and a connecting pipe assembly 100. The specific structure of the connecting pipe assembly 100 refers to the above-mentioned embodiments. Because the air conditioner adopts all the technologies of all the above-mentioned embodiments The solution, therefore, has at least all the beneficial effects brought about by the technical solution of the above-mentioned embodiment, and will not be repeated here. Wherein, the indoor unit is provided with an indoor quick connector 200 for connecting with the quick connector 20 of the refrigerant pipe 10; and/or, the outdoor unit is provided with an outdoor quick connector 300 for connecting with the quick connector 20 of the refrigerant pipe 10. The indoor quick connector 200 and the outdoor quick connector 300 are used for docking with the quick connector 20 of the connecting pipe assembly 100, thereby realizing quick installation.

It is understandable that all the pipelines connecting the indoor unit and the outdoor unit, such as the refrigerant pipe 10 (including the refrigerant liquid pipe 11 and the refrigerant gas pipe 13), and connecting cables (which may include wires, signal wires and other cables) are all set in a fixed Within 15 sets. The two ends of the connecting cable are connecting ends, and the specifications of the plug-in structure of the connecting end with the indoor unit and the connecting end with the outdoor unit can be set to be the same, so that convenient operation and connection can be realized. Especially in Europe and the United States, manual installation is very expensive, and it is generally done by individuals. By setting the specifications of both ends of the connecting cable to be the same, manual connection can be facilitated. At the same time, the joint structure at both ends of the refrigerant pipe 10 (including the refrigerant liquid pipe 11 and the refrigerant gas pipe 13) can also be set to the same structure, which is also for the convenience of user connection and ease of use. During installation, a wall hole needs to be provided in the wall, and a protective tape can also be wrapped on the outside of the fixing sleeve 15. The protective tape can be made of plastic or plastic material. The length of the protective belt may be the same as that of the fixing sleeve 15, or it may be only at the part where the fixing sleeve 15 is in contact with the wall hole. There is a gap between the fixed sleeve 15 and the refrigerant pipe 10 and the connecting cable. When passing through the wall hole, the fixed sleeve 15 is generally deformed and the gap between the refrigerant pipe 10 and the connecting cable becomes smaller, so that the passage The hole diameter of the wall hole is not necessary to be set so large, thereby saving installation space. Furthermore, through the protective belt, the deformation of the fixing sleeve 15 can be basically maintained, which is convenient for installation. For example, when the entire pre-assembled connecting pipe assembly is assembled in the sky on the 19th floor, and then passed through the wall hole, It can pass through the wall hole more smoothly and conveniently. At the same time, by covering the outer circumference of the fixing sleeve 15 with a protective belt, the fixing sleeve 15 can also be protected from being damaged by the wall hole (the wall is generally reinforced concrete structure, which is easy to cut the fixing sleeve 15) when passing through the wall hole.

The above are only the preferred embodiments of this application, and do not limit the scope of this application. Under the application concept of this application, equivalent structural transformations made by using the content of the specification and drawings of this application, or direct/indirect use Other related technical fields are included in the scope of patent protection of this application.

Claims

A connecting pipe assembly is used to connect an indoor unit and an outdoor unit of an air conditioner, wherein the connecting pipe assembly includes:

A refrigerant pipe, one end of the refrigerant pipe is connected to the indoor unit, and the other end of the refrigerant pipe is connected to the outdoor unit;

A buffer, the buffer is sleeved on the outer circumference of the refrigerant tube; and

The fixed sleeve is sleeved on the buffer member and fixed to the refrigerant tube.
The connecting pipe assembly according to claim 1, wherein the buffer member is a tubular spring.
3. The connecting pipe assembly according to claim 2, wherein the ratio of the extension length of the tubular spring to the extension length of the refrigerant pipe ranges from 0.5 to 1.
The connecting pipe assembly according to claim 2, wherein the tubular spring is arranged in multiple sections, and the multiple sections of the tubular spring are arranged along the length direction of the refrigerant pipe.
The connecting pipe assembly according to any one of claims 1, wherein the outer wall surface of the refrigerant pipe is provided with a threaded structure, and the buffer member is mounted on the threaded structure.
The connecting pipe assembly according to any one of claims 1 to 5, wherein the number of the refrigerant pipes is two, one of which is a refrigerant liquid pipe, and the other is a refrigerant gas pipe, each of the refrigerant pipes The outer peripheral surface of each is sleeved with a buffer member, and a fixed sleeve is sleeved on the outer peripheries of the two refrigerant pipes and the two buffer members.
7. The connecting pipe assembly according to claim 6, wherein a thermal insulation sleeve is further provided between the buffer member and the fixing sleeve, and the thermal insulation sleeve is sleeved on the outside of the buffer member.
7. The connecting pipe assembly according to claim 7, wherein a connecting cable is further provided in the fixing sleeve, and the connecting cable is arranged between the fixing sleeve and the thermal insulation sleeve.
The connecting pipe assembly according to any one of claims 1 to 5, wherein both ends of the refrigerant pipe are provided with quick connectors.
An air conditioner, comprising the connecting pipe assembly according to any one of claims 1 to 8, and further comprising an indoor unit and an outdoor unit, and the connecting pipe assembly connects the indoor unit and the outdoor unit.