WO2023124719A1

WO2023124719A1 - Fixing plate, liquid storage device and air conditioning system

Info

Publication number: WO2023124719A1
Application number: PCT/CN2022/135465
Authority: WO
Inventors: 王国栋; 金海龙; 宇汝巢; 董德森; 郭世俊
Original assignee: 浙江盾安人工环境股份有限公司
Priority date: 2021-12-29
Filing date: 2022-11-30
Publication date: 2023-07-06
Also published as: CN216745048U

Abstract

A fixing plate (30), a liquid storage device (100) and an air conditioning system (200). The fixing plate (30) provided in the present application is arranged in a housing of a liquid storage device (100), the liquid storage device (100) comprises a first connecting pipe (20), and the fixing plate (30) is used for fixing the first connecting pipe (20). A connecting hole (31) is provided in the fixing plate (30), and is configured to allow the first connecting pipe (20) to pass through same; a flange (32) is provided at an opening of the connecting hole (31); and an accommodating groove (321) for accommodating a welding ring is provided in an inner wall surface of the flange (32), and a fixing portion (3211) is provided on a groove wall of the accommodating groove (321), and is used for limiting the welding ring.

Description

Fixing plate, reservoir and air conditioning system

related application

This application claims the priority of the Chinese patent application filed on December 29, 2021, with the application number 202123387652.X, and the title of the invention is "fixed plate, liquid reservoir and air conditioning system", the entire content of which is incorporated by reference in this application middle.

technical field

The present application relates to the technical field of liquid storage, in particular to a fixed plate, a liquid storage and an air conditioning system.

Background technique

The liquid receiver is an important part of the refrigeration system. It is usually installed between the evaporator and the compressor. It has the functions of storing refrigerant, separating gas and liquid, and filtering impurities.

For the fixing plate in the liquid reservoir in the related art, usually the welding ring is directly placed on the first connecting pipe and the first connecting pipe sleeved with the welding ring is inserted into the fixing plate, so as to weld the fixing plate and the first connecting pipe, After the welding ring is placed horizontally in the furnace, the brazing furnace shakes during the rotation process. The welding ring softens after heating and slides away from the welding position on the fixing plate, resulting in no welding wire filling between the fixing plate and the first connecting pipe. The first connecting pipe and the fixed plate are prone to produce abnormal sound.

Contents of the invention

According to various embodiments of the present application, a fixing plate, a liquid reservoir, and an air conditioning system are provided.

The present application provides a fixing plate, which is arranged in the casing of the liquid storage device, the liquid storage device includes a first connecting pipe, and the fixing plate is used to fix the first connecting pipe; the fixing plate is provided with a connection hole, The connection hole is used for the penetration of the first connecting pipe, the opening of the connection hole is provided with a flange, and the inner wall surface of the flange is provided with an accommodating groove for accommodating the welding ring. A fixing portion is provided on the groove wall of the accommodating groove, and the fixing portion is used for limiting the position of the welding ring.

It can be understood that the present application sets the fixing part on the groove wall of the accommodating tank, so that the fixing part can fix and limit the welding ring, so that the welding ring can It is not affected by the shaking and placement of the brazing furnace, avoids the failure of the welding ring falling out of the accommodating groove, and enhances the welding strength.

In one of the embodiments, there are multiple fixing parts, and the fixing parts are arranged at intervals along the circumferential direction of the accommodating groove wall.

In one of the embodiments, the fixing part includes a protrusion, and the protrusion is annular, and the protrusion is arranged along the circumferential direction of the wall of the accommodation groove.

In one embodiment, the fixing portion includes a plurality of protrusions, and the protrusions are arranged at intervals along the circumferential direction of the wall of the accommodation groove.

In one embodiment, the protrusion is formed on the outer wall of the flange by pressing.

It can be understood that, by making the protrusions be formed by press working on the outer wall of the flange, there is no need to additionally provide the protrusions on the groove wall of the accommodating groove, reducing materials and eliminating the need to The protrusion is welded in the accommodating groove, which simplifies the process.

In one embodiment, the fixing part includes a step, and the step is formed by constricting one end of the flange.

It can be understood that the step is formed by constricting the flange, so that the welding ring is directly accommodated on the step, so that the welding ring is clamped and fastened to the in the storage tank.

In one of the embodiments, the fixing part is arranged on the groove wall of the accommodation groove close to the end of the first connecting pipe, and/or, the fixing part is arranged on the accommodation groove away from the first connecting pipe the wall at one end.

In one embodiment, a plurality of filter holes are opened on the fixed plate, and the plurality of filter holes are evenly distributed along the circumference of the fixed plate.

It can be understood that, by arranging a plurality of filter holes on the fixing plate, the liquid refrigerant entering the cavity falls to the bottom of the housing through the filter holes.

The present application also provides a liquid reservoir, which includes a housing, a first connecting pipe and a fixing plate, the fixing plate is installed in the housing, one end of the first connecting pipe is passed through the connecting hole, and the other end extends to outside of the housing.

The present application also provides an air conditioning system, including a liquid accumulator.

Compared with the related technology, the present application sets the fixing part on the groove wall of the accommodating tank, so that the fixing part can fix and limit the welding ring, so that the welding ring can be fixed and limited after entering the furnace. The ring is not affected by the shaking and placement of the brazing furnace, which prevents the welding ring from falling out of the accommodating groove and increases the welding strength.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present application will be apparent from the description, drawings and claims.

Description of drawings

In order to better describe and illustrate embodiments and/or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. Additional details or examples used to describe the drawings should not be considered limitations on the scope of any of the disclosed inventions, the presently described embodiments and/or examples, and the best mode of these inventions currently understood.

Fig. 1 is a schematic structural diagram of a liquid reservoir according to one or more embodiments.

Fig. 2 is a structural schematic view of a fixed plate according to one or more embodiments.

Fig. 3 is a structural schematic diagram of another viewing angle of a fixing plate according to one or more embodiments.

Fig. 4 is a schematic structural diagram of an air conditioning system according to one or more embodiments.

Reference signs: 100, liquid reservoir; 10, shell; 11, cavity; 12, first flow port; 13, second flow port; 14, third flow port; 20, first connection; 201, second flow port 1 connecting pipe; 202, second connecting pipe; 203, straight pipe; 204, bent pipe; 21, second connecting pipe; 30, fixing plate; 31, connecting hole; fixed part; 3211a, protrusion; 3211b, step; 33, filter hole; 200, air conditioning system.

Detailed ways

In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

It should be noted that when a component is referred to as being “fixed on” or “set on” another component, it may be directly on the other component or there may also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for the purpose of illustration only and do not represent the only implementation Way.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this application, unless otherwise clearly specified and limited, a first feature is "on" or "under" a second feature, which means that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact with each other. contact through an intermediary. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or it just means that the first feature is higher in level than the second feature. "Below", "beneath" and "under" the first feature may mean that the first feature is directly below or obliquely below the second feature, or it just means that the level of the first feature is smaller than that of the second feature.

Unless otherwise defined, all technical and scientific terms used in the description of the present application have the same meaning as commonly understood by those skilled in the technical field of the present application. The terms used in the description of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The term "and/or" used in the specification of the present application includes any and all combinations of one or more related listed items.

Please refer to FIG. 1 to FIG. 3 , the present application provides an accumulator 100 , which is mainly used in a refrigeration system, and is generally installed between an evaporator and a compressor of an air conditioner. When the load of the refrigeration system is small, the refrigerant can be returned to the accumulator 100 to adjust and stabilize the circulation of the refrigerant in the system, so that the refrigeration system is in a normal operating state. When a certain part of the refrigeration system breaks down and needs to be repaired, certain operations can be performed to collect the refrigerant in the refrigeration system into the liquid receiver 100, so as to avoid a large amount of refrigerant flowing out and causing waste. The accumulator 100 can not only store refrigerant, but also separate gas and liquid from refrigerant.

In order to solve the problems existing in the welding between the fixed plate and the first connecting pipe in the liquid reservoir in the related art, the application provides a fixed plate 30, which is arranged in the casing 10 of the liquid reservoir 100, and the liquid reservoir 100 Including the first connecting pipe 20, the fixing plate 30 is used to fix the first connecting pipe 20; the connecting hole 31 is opened on the fixing plate 30, the connecting hole 31 is used for the penetration of the first connecting pipe 20, and the opening of the connecting hole 31 is provided with a flip The side 32 and the inner wall of the flange 32 are provided with a receiving groove 321 for receiving the welding ring, and the groove wall of the receiving groove 321 is provided with a fixing part 3211, and the fixing part 3211 limits the welding ring.

In this application, the fixing part 3211 is set on the groove wall of the accommodating tank 321, so that the fixing part 3211 can fix and limit the welding ring, so that the welding ring is not affected by the shaking and placement of the brazing furnace after entering the furnace. , to prevent the welding ring from falling off and failing in the accommodating groove 321, and enhance the welding strength.

As shown in Figures 2 and 3, when the welding ring is placed in the accommodation groove 321, in order to further enhance the firmness of the welding ring in the accommodation groove 321 and prevent the welding ring from falling off from the accommodation groove 321, the welding ring is processed by stamping The outer wall of the flange 32, so that the inner wall of the flange 32 is stamped into a fixed portion 3211, and the fixed portion 3211 is located on the groove wall of the receiving groove 321 near the end of the first connecting pipe 20, and/or, the fixed portion 3211 is located in the receiving groove 321 The groove 321 is located away from the groove wall at the end of the first adapter 20 . That is, the fixing portion 3211 is disposed on a side wall of the receiving groove 321 close to the connecting hole 31 , and/or, the fixing portion 3211 is disposed on a side wall of the receiving groove 321 away from the connecting hole 31 . That is to say, the fixing part 3211 can be arranged on one side of the groove wall of the accommodating groove 321 , and can also squeeze the welding ring from both sides of the groove wall of the accommodating groove 321 to enhance stability. The function of the fixing part 3211 is to fix and limit the welding ring in the accommodating groove 321. When the welding ring falls off, it abuts against the fixing part 3211, which prevents the welding ring from falling off.

Among them, the pressure processing method can be stamping, extrusion, spinning and other methods; of course, the fixing part 3211 is not limited to the formation of the pressure processing method, and can also be formed by pulling up the groove wall of the accommodating groove 321. The way of stretching is formed, wherein, the way of stretching can be shrinking stretching or expanding stretching, etc., and the processing way of fixing part 3211 is not specifically limited here.

In one embodiment, the fixing part 3211 includes a protrusion 3211a, and the protrusion 3211a is ring-shaped, and the protrusion 3211a is arranged along the circumferential direction of the groove wall of the accommodating groove 321 . That is to say, the fixing portion 3211 can be an annular rib provided along the entire circumferential direction of the groove wall of the accommodating groove 321 , so as to block each falling-off direction of the welding ring.

In one embodiment, the fixing portion 3211 includes a plurality of protrusions 3211a, and the protrusions 3211a are arranged at intervals along the circumferential direction of the groove wall of the accommodating groove 321 . That is to say, the fixing portion 3211 can also be a plurality of protrusions distributed on the wall of the accommodating groove 321 at intervals.

In this embodiment, there may be various shapes, installation methods, and installation positions of the fixing portion 3211 , as long as the welding ring in the receiving groove 321 can be blocked, and there is no limitation here.

Further, the fixing part 3211 includes a step 3211b. The step 3211b is located in the receiving groove 321 and is formed by constricting one end of the flange 32 . It should be noted that the fixing part 3211 can also be formed by shrinking the outer wall of the flange 32, and then forming the fixing part 3211 to clamp the welding ring in the accommodating groove 321, and fasten it in the accommodating groove 321, further The firmness of the welding ring in the accommodating groove 321 is ensured, so that when the first connecting pipe 20 stretches into the flange 32 and passes through the connection hole 31 of the fixing plate 30 for welding, the welding ring will not fall off, thus ensuring the first A welding strength between the connecting pipe 20 and the fixing plate 30 .

Further, a plurality of filter holes 33 are opened on the fixing plate 30 , and the plurality of filter holes 33 are evenly distributed along the circumferential direction of the fixing plate 30 . When the gas-liquid mixed refrigerant flows into the fixing plate 30 , the filter hole 33 is used for passage of the refrigerant, so that the liquid refrigerant flows into the bottom of the housing 10 through the filter hole 33 .

It is worth noting that the accommodating groove 321 is not limited to place solder rings, and other substances such as solder can also be placed, which is not limited here.

The present application also provides a liquid reservoir 100 , which includes a housing 10 , a first connecting pipe 20 and a fixing plate 30 . A closed cavity 11 is formed in the casing 10 , the fixing plate 30 is installed in the cavity 11 , one end of the first connecting pipe 20 is located in the cavity 11 , and the other end extends out of the casing 10 .

As shown in FIG. 1 , the housing 10 is generally in the shape of a cylinder with two ends constricted; of course, in other embodiments, the housing 10 can also be configured in other shapes such as a rectangular parallelepiped, which is not limited here.

Further, one end of the casing 10 is provided with a first flow port 12 , and the other end is provided with a second flow port 13 and a third flow port 14 arranged at intervals. The first communication port 12 , the second communication port 13 and the third communication port 14 are all in communication with the cavity 11 . The refrigerant flows into the cavity 11 through the first flow port 12 , and then flows out of the cavity 11 through the second flow port 13 and the third flow port 14 .

Specifically, the second connecting pipe 21 is inserted into the housing 10 through the first flow port 12, and is welded and fixed with the housing 10; one end of the second connecting pipe 21 extends into the housing 10, and the other end extends out of the housing 10 , used to connect with other pipelines in the air-conditioning system, so as to introduce the refrigerant in other pipelines into the cavity 11 through the second connecting pipe 21 . The first connecting pipe 20 includes a first connecting pipe 201 and a second connecting pipe 202. The first connecting pipe 201 and the second connecting pipe 202 are respectively inserted into the casing 10 through the second communication port 13 and the third communication port 14, and are connected with The housing 10 is welded and fixed; one end of the first connecting pipe 201 and the second connecting pipe 202 extend into the housing 10, and the other end extends out of the housing 10 for connecting with other pipelines in the air-conditioning system, so as to The refrigerant in the cavity 11 is led out through the first connecting pipe 201 and the second connecting pipe 202 . In other embodiments, the first connecting pipe 20 can be configured as multiple connecting pipes as required.

It should be noted that both the first connecting pipe 20 and the second connecting pipe 21 are welded and fixed to the housing 10 , which can improve the sealing performance and reliability of the overall connection. In addition, the outer surface of the casing 10 adopts professional powder coating, which can pass the severe neutral salt spray test and has good corrosion resistance.

In this embodiment, both the first connecting pipe 20 and the second connecting pipe 21 can be made of copper material, so as to facilitate the user to weld with other pipelines in the air-conditioning system; of course, in other embodiments, the first connecting pipe 20 and the second connecting pipe The connecting pipe 21 can also be made of other materials such as stainless steel, which is not limited here.

Further, the fixing plate 30 is fixedly connected to the inner wall of the housing 10, and one end of the first connecting pipe 20 close to the second connecting pipe 21 extends into the connection hole 31 and is welded with the fixing plate 30 to realize the fixing of the first connecting pipe 20 in the housing 10 . Optionally, the fixing plate 30 can be integrated with the housing 10 or separately, which is not limited here.

Further, the first connecting pipe 20 includes a straight pipe 203 protruding into the housing 10 and an elbow 204 outside the housing 10 , the straight pipe 203 and the elbow 204 are fixedly connected or integrally arranged.

The fixing plate 30 provided by the present application sets the fixing part 3211 on the groove wall of the accommodating groove 321, so that the fixing part 3211 fixes and limits the welding ring, so that the welding ring is not shaken by the brazing furnace after entering the furnace Influenced by the placement mode, the welding ring is prevented from falling off from the accommodating groove 321 and fails, and the welding strength is enhanced.

As shown in FIG. 4 , the present application also provides an air conditioning system 200 including a liquid accumulator 100 .

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of this application should be based on the appended claims.

Claims

A fixing plate, which is arranged in the casing of the liquid storage device, the liquid storage device includes a first connecting pipe, and the fixing plate is used to fix the first connecting pipe;

It is characterized in that a connecting hole is opened on the fixing plate, and the connecting hole is used for piercing the first connecting pipe, and a flange is provided at the opening of the connecting hole, and the inner wall surface of the flange is An accommodating groove for accommodating the welding ring is opened, and a fixing part is provided on the groove wall of the accommodating groove, and the fixing part is used for limiting the welding ring.
The fixing plate according to claim 1, wherein a plurality of the fixing parts are provided, and the plurality of fixing parts are arranged at intervals along the circumferential direction of the groove wall of the accommodating groove.
The fixing plate according to claim 1, wherein the fixing part includes a protrusion, and the protrusion is annular, and the protrusion is arranged along a circumferential direction of the wall of the accommodating groove.
The fixing plate according to claim 1, wherein the fixing portion comprises a plurality of protrusions, and the protrusions are arranged at intervals along the circumferential direction of the wall of the accommodating groove.
The fixing plate according to claim 3 or 4, wherein the protrusion is formed on the outer wall of the flange by press working.
The fixing plate according to claim 1, wherein the fixing part comprises a step, and the step is formed by constricting one end of the flange.
The fixing plate according to claim 1 or 6, wherein, the fixing part is arranged on the groove wall of the accommodating groove close to one end of the first connecting pipe, and/or, the fixing part is arranged on the accommodating The groove is away from the groove wall at one end of the first connecting pipe.
The fixing plate according to claim 1 or 6, wherein, the fixing part is arranged on the side wall of the accommodating groove close to the connecting hole, and/or, the fixing part is arranged on the side wall of the accommodating groove away from the side wall of the connecting hole.
The fixing plate according to claim 1, wherein a plurality of filtering holes are opened on the fixing plate, and the plurality of filtering holes are evenly distributed along the circumferential direction of the fixing plate.
The fixing plate according to claim 1, wherein the fixing part is formed on the outer wall of the flange by pressing or stretching.
A liquid reservoir, characterized in that it includes a housing, a first connecting pipe, and a fixing plate according to any one of claims 1-10, the fixing plate is installed in the housing, and one end of the first connecting pipe The connecting hole is passed through, and the other end extends out of the casing.
The liquid accumulator according to claim 11, wherein a closed cavity is formed in the housing, the fixing plate is installed in the cavity, a first flow port is opened at one end of the housing, and the other One end is provided with a second flow port and a third flow port arranged at intervals, and the first flow port, the second flow port and the third flow port are all connected through the cavity;

The refrigerant flows into the cavity through the first flow port, and then flows out of the cavity through the second flow port and the third flow port.
The liquid accumulator according to claim 12, further comprising a second connecting pipe, the second connecting pipe is inserted into the housing through the first communication port, and is welded and fixed with the housing;

The first connecting pipe includes a first connecting pipe and a second connecting pipe, and the first connecting pipe and the second connecting pipe are respectively inserted into the housing through the second communication port and the third communication port , and welded with the shell.
The liquid accumulator according to claim 13, wherein both the first connecting pipe and the second connecting pipe are made of copper.
An air conditioning system, characterized by comprising the accumulator according to claims 11-14.