阅读说明：本技术 制冷剂降噪装置及包含该制冷剂降噪装置的空调器 (Refrigerant noise reduction device and air conditioner comprising same ) 是由 崔国栋 刁洪福 陈旭 王海胜 罗三 于 2021-07-02 设计创作，主要内容包括：本发明涉及空调技术领域,旨在解决现有空调系统中的气液混合状态的制冷剂在流经膨胀阀时,会产生较大噪音的问题。为此目的,本发明提供了一种制冷剂降噪装置及包含该制冷剂降噪装置的空调器,该制冷剂降噪装置包括本体、第一机构以及第二机构,其中,本体具有进口和出口,并且本体内设置有腔室,腔室与进口和出口连通；第一机构位于腔室内,第一机构能够封堵和打开出口；第二机构位于腔室内,第二机构与第一机构连接,第二机构设置为当腔室内的制冷剂全部为液态制冷剂时能够带动第一机构移动,以使第一机构打开出口。通过这样的设置,能够确保流出制冷剂降噪装置的出口的制冷剂全部为液态,降低制冷剂通过膨胀阀的噪音,提高客户的体验度。(The invention relates to the technical field of air conditioners, and aims to solve the problem that a refrigerant in a gas-liquid mixed state in an existing air conditioning system generates large noise when flowing through an expansion valve. To this end, the invention provides a refrigerant noise reduction device and an air conditioner comprising the same, wherein the refrigerant noise reduction device comprises a body, a first mechanism and a second mechanism, wherein the body is provided with an inlet and an outlet, a cavity is arranged in the body, and the cavity is communicated with the inlet and the outlet; the first mechanism is positioned in the cavity and can seal and open the outlet; the second mechanism is located in the cavity and connected with the first mechanism, and the second mechanism is set to drive the first mechanism to move when all the refrigerant in the cavity is liquid refrigerant, so that the first mechanism opens the outlet. Through such setting, can ensure that the refrigerant that flows out the export of refrigerant noise reduction device is all for liquid, reduce the refrigerant and pass through the noise of expansion valve, improve customer's experience.)

1. A refrigerant noise reduction device, comprising:

a body having an inlet and an outlet, a chamber being provided within the body, the chamber being in communication with the inlet and the outlet;

a first mechanism located within the chamber, the first mechanism capable of plugging and unplugging the outlet; and

and the second mechanism is arranged in the cavity and is connected with the first mechanism, and the second mechanism is arranged to drive the first mechanism to move when all the refrigerant in the cavity is in a liquid state, so that the first mechanism opens the outlet.

2. The refrigerant noise reduction device of claim 1, wherein the first mechanism comprises a first member and a second member, the first member being located between the second member and the outlet, the second member being connected to the second mechanism, the first member having a first passage therein, the second member having a second passage therein, one end of the first passage communicating with the outlet, one end of the second passage communicating with the chamber, when the first member and the second member are in a connected state, the other end of the first passage and the other end of the second passage are in a disconnected state, when all the refrigerant in the cavity is in a liquid state, the second mechanism can drive the second component to move, so that the other end of the first channel is communicated with the other end of the second channel.

3. The refrigerant noise reduction device according to claim 2, wherein a face of the first member adjacent to the second member is planar, a face of the second member adjacent to the first member is also planar, and the first passages are offset from the second passages.

4. The refrigerant noise reduction device of claim 3, wherein the first channel is a cylindrical channel.

5. The refrigerant noise reduction device of claim 3, wherein the second channel is an annular channel.

6. The refrigerant noise reduction device according to claim 1, wherein the second mechanism includes a connecting member and a floating member, the floating member being connected to the first mechanism through the connecting member, the floating member floating upward when the refrigerant in the chamber is entirely in a liquid state to move the first mechanism through the connecting member and thus cause the first mechanism to open the outlet.

7. The refrigerant noise reduction device according to claim 6, wherein the connection assembly comprises a first fixed pulley, a second fixed pulley, and a connection cable, the first fixed pulley is located above the second fixed pulley, one end of the connection cable is fixedly connected with the first mechanism, and the other end of the connection cable is fixedly connected with the floating member by passing through the first fixed pulley and the second fixed pulley in sequence.

8. The refrigerant noise reduction device according to claim 7, wherein the floating member is a float ball or a float block.

9. The refrigerant noise reduction device according to any one of claims 1 to 8, wherein the chamber includes a main chamber, a first communicating chamber having both ends communicating with the inlet and the main chamber, respectively, and a second communicating chamber having both ends communicating with the outlet and the main chamber, respectively, the first mechanism is located in the second communicating chamber, a part of the second mechanism is located in the main chamber, and another part of the second mechanism is located in the second communicating chamber.

10. An air conditioner characterized by comprising the refrigerant noise reduction device according to any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of air conditioners, and particularly provides a refrigerant noise reduction device and an air conditioner comprising the same.

Background

The air conditioner is a common device which can refrigerate or heat indoors at present, a high-temperature high-pressure refrigerant generated by a compressor can be changed into a low-temperature low-pressure refrigerant after passing through a throttling device.

In order to obtain the throttling effect when a refrigerant flows through the electronic expansion valve, the refrigerant flows in a narrow throttling channel of the electronic expansion valve, part of the refrigerant can be gasified to generate bubbles, and the bubbles can be broken due to the fact that the flow speeds of the refrigerant in a gas state and a liquid state are different and the refrigerant in the gas state and the liquid state can be disturbed by friction, collision and the like, so that harsh refrigerant flow noise is generated in the gas-liquid two-phase change process.

Therefore, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

In order to solve the above-mentioned problems in the prior art, i.e. to solve the problem that the refrigerant in a gas-liquid mixed state in the existing air conditioning system generates a large noise when passing through the expansion valve, the present invention provides a refrigerant noise reduction device, comprising: a body having an inlet and an outlet, a chamber being provided within the body, the chamber being in communication with the inlet and the outlet; a first mechanism located within the chamber, the first mechanism capable of plugging and unplugging the outlet; and the second mechanism is positioned in the cavity and connected with the first mechanism, and the second mechanism is arranged to drive the first mechanism to move when all the refrigerant in the cavity is in a liquid state, so that the first mechanism opens the outlet.

In a preferred embodiment of the above refrigerant noise reduction device, the first mechanism includes a first member and a second member, the first member is located between the second member and the outlet, the second member is connected to the second mechanism, the first member has a first channel thereon, the second member has a second channel thereon, one end of the first channel is communicated with the outlet, one end of the second channel is communicated with the chamber, when the first member and the second member are in a connected state, the other end of the first channel and the other end of the second channel are in a disconnected state, and when all the refrigerant in the chamber is in a liquid state, the second mechanism can drive the second member to move so that the other end of the first channel is communicated with the other end of the second channel.

In a preferred embodiment of the above-described refrigerant noise reducing device, a surface of the first member adjacent to the second member is a flat surface, a surface of the second member adjacent to the first member is also a flat surface, and the first passages and the second passages are arranged in a staggered manner.

In a preferred embodiment of the above refrigerant noise reduction device, the first passage is a cylindrical passage.

In a preferred embodiment of the above-mentioned refrigerant noise reduction device, the second passage is an annular passage.

In a preferred technical solution of the above refrigerant noise reduction device, the second mechanism includes a connecting assembly and a floating member, the floating member is connected to the first mechanism through the connecting assembly, and when all the refrigerant in the chamber is in a liquid state, the floating member floats upward to drive the first mechanism to move through the connecting assembly, and thus the first mechanism opens the outlet.

In the preferable technical scheme of the above refrigerant noise reduction device, the connection assembly includes a first fixed pulley, a second fixed pulley and a connection cable, the first fixed pulley is located above the second fixed pulley, one end of the connection cable is fixedly connected with the first mechanism, and the other end of the connection cable sequentially bypasses the first fixed pulley and the second fixed pulley and is fixedly connected with the floating member.

In a preferred embodiment of the above refrigerant noise reduction device, the floating member is a floating ball or a floating block.

In a preferred technical solution of the above refrigerant noise reduction device, the chamber includes a main chamber, a first communicating chamber and a second communicating chamber, two ends of the first communicating chamber are respectively communicated with the inlet and the main chamber, two ends of the second communicating chamber are respectively communicated with the outlet and the main chamber, the first mechanism is located in the second communicating chamber, one part of the second mechanism is located in the main chamber, and the other part of the second mechanism is located in the second communicating chamber.

In another aspect, the invention also provides an air conditioner, which comprises the refrigerant noise reduction device.

As can be understood by those skilled in the art, in a preferred embodiment of the present invention, the refrigerant noise reduction device includes: the device comprises a body, a valve body and a valve body, wherein the body is provided with an inlet and an outlet, a cavity is arranged in the body, and the cavity is communicated with the inlet and the outlet; a first mechanism located within the chamber, the first mechanism capable of plugging and unplugging the outlet; and the second mechanism is positioned in the cavity and is connected with the first mechanism, and the second mechanism is set to drive the first mechanism to move when all the refrigerant in the cavity is in a liquid state, so that the first mechanism opens the outlet. Through such setting, can ensure that the refrigerant that flows out the export of refrigerant noise reduction device is the liquid, reduce the refrigerant and pass through the noise of expansion valve, improve customer's experience degree.

The first mechanism comprises a first member and a second member, the first member is located between the second member and the outlet, the second member is connected with the second mechanism, the first member is provided with a first channel, the second member is provided with a second channel, one end of the first channel is communicated with the outlet, one end of the second channel is communicated with the chamber, when the first member and the second member are in a connected state, the other end of the first channel and the other end of the second channel are in a disconnected state, and when liquid refrigerant in the chamber reaches a set value, the second mechanism can drive the second member to move so that the other end of the first channel is communicated with the other end of the second channel. Through such setting, can guarantee that only liquid refrigerant can flow from the export of the body of refrigerant noise reduction device to, simple structure can reduce the cost of refrigerant noise reduction device.

Furthermore, one surface of the first member, which is close to the second member, is a plane, one surface of the second member, which is close to the first member, is also a plane, and the first channel and the second channel are arranged in a staggered manner. Through the arrangement, when the second component abuts against the first component, the first channel and the second channel can be better sealed, the first channel and the second channel are better ensured to be in an open circuit state, the gaseous refrigerant is prevented from being discharged from the outlet of the body of the refrigerant noise reduction device, and the noise reduction effect is improved.

And the connecting assembly comprises a first fixed pulley, a second fixed pulley and a connecting cable, the first fixed pulley is positioned above the second fixed pulley, one end of the connecting cable is fixedly connected with the first mechanism, and the other end of the connecting cable sequentially bypasses the first fixed pulley and the second fixed pulley and is fixedly connected with the floating member. Through such setting, simple structure, the production of being convenient for, and can guarantee that the pulling force value that the second component axial direction removed equals with the buoyancy that the component produced floats.

Still further, the second mechanism includes a connecting member and a floating member connected to the first mechanism by the connecting member, the floating member floating upward when the refrigerant in the chamber is entirely in a liquid state to move the first mechanism by the connecting member and thus cause the first mechanism to open the outlet. Through such setting, can guarantee that only liquid refrigerant can flow from the export of the body of refrigerant noise reduction device to, simple structure can reduce the cost of refrigerant noise reduction device.

Still further, the cavity includes main cavity, first intercommunication cavity and second intercommunication cavity, and the both ends of first intercommunication cavity communicate with import and main cavity respectively, and the both ends of second intercommunication cavity communicate with export and main cavity respectively, and first mechanism is located the second intercommunication cavity, and partly of second mechanism is located the main cavity, and another part of second mechanism is located the second intercommunication cavity. Through the arrangement, the liquid refrigerant can flow in the cavity conveniently, and the liquid refrigerant can be ensured to flow out of the outlet smoothly through the second communication cavity.

In addition, the air conditioner further provided on the basis of the technical scheme of the invention has the technical effects of the refrigerant noise reduction device due to the adoption of the refrigerant noise reduction device, and compared with the air conditioner before improvement, the air conditioner provided by the invention has the advantages that the noise is lower in the process of refrigeration or heating, and the experience degree of customers is better.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a refrigerant noise reducing device of the present invention.

List of reference numerals:

1. a body; 11. an inlet; 12. an outlet; 13. a chamber; 131. a main chamber; 132. a first communicating chamber; 133. a second communicating chamber; 2. a first mechanism; 21. a first member; 211. a first channel; 22. a second member; 221. a second channel; 3. a second mechanism; 31. a first fixed pulley; 32. a second fixed pulley; 33. a connecting cable; 34. a floating member.

Detailed Description

First, it should be understood by those skilled in the art that the embodiments described below are merely for explaining technical principles of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "left", "right", "inside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As indicated by the background art, the air-liquid mixed refrigerant in the prior air conditioning system generates a loud noise when passing through the expansion valve. The invention provides a refrigerant noise reduction device and an air conditioner comprising the same, aiming at reducing the noise generated by refrigerant when the refrigerant noise reduction device separates gas-liquid mixed refrigerant, and only allowing the liquid refrigerant to be discharged from the device, thereby reducing the noise generated by the refrigerant when the refrigerant passes through an expansion valve.

Referring first to fig. 1, fig. 1 is a schematic structural view of a refrigerant noise reduction device according to the present invention.

As shown in fig. 1, the refrigerant noise reduction device of the present invention comprises a body 1, a first mechanism 2 and a second mechanism 3, wherein the body 1 has an inlet 11 and an outlet 12, and a chamber 13 is provided in the body 1, the chamber 13 is communicated with the inlet 11 and the outlet 12, and refrigerant flows into the chamber 13 from the inlet 11 and finally flows out from the outlet 12; the first mechanism 2 is positioned in the chamber 13, and the first mechanism 2 can block and open the outlet 12; the second mechanism 3 is also located in the chamber 13, and the second mechanism 3 is connected with the first mechanism 2, and the second mechanism 3 is configured to drive the first mechanism 2 to move when all the refrigerant in the chamber 13 is in a liquid state, so that the first mechanism 2 opens the outlet 12.

That is to say, initially, the first mechanism 2 blocks the outlet 12, after the refrigerant (including gaseous refrigerant and liquid refrigerant) enters the chamber 13 from the inlet 11, the refrigerant cannot flow out from the outlet 12, the refrigerant in the chamber 13 will gradually increase, and as the refrigerant increases, the space in the chamber 13 decreases, the liquid refrigerant will extrude the gaseous refrigerant out of the chamber 13, and when all the refrigerant in the chamber 13 is liquid refrigerant, the second mechanism 3 will drive the first mechanism 2 to move, so that the first mechanism 2 opens the outlet 12, and at this time, the liquid refrigerant in the chamber 13 can be discharged from the outlet 12.

Therefore, the refrigerant noise reduction device can be arranged at the upstream end of the electronic expansion valve, and only liquid refrigerant can pass through the electronic expansion valve, so that the noise is reduced, and the customer experience is improved.

Preferably, as shown in fig. 1, the first mechanism 2 includes a first member 21 and a second member 22, the first member 21 is located between the second member 22 and the outlet 12, the second member 22 is connected to the second mechanism 3, the first member 21 has a first passage 211 thereon, the second member 22 has a second passage 221 thereon, a left end of the first passage 211 is communicated with the outlet 12, and a right end of the second passage 221 is communicated with the chamber 13, when the first member 21 and the second member 22 are in the connected state, the right end of the first passage 211 and the left end of the second passage 221 are in the disconnected state, and when all the refrigerant in the chamber 13 is liquid refrigerant, the second mechanism 3 can drive the second member 22 to move so that the right end of the first passage 211 is communicated with the left end of the second passage 221.

Initially, the first member 21 and the second member 22 are in a connected state, the first passage 211 on the first member 21 and the second passage 221 on the second member 22 are also in a disconnected state, after the refrigerant (including gaseous refrigerant and liquid refrigerant) enters the chamber 13 from the inlet 11, a leftward pressure is applied to the second member 22, so that the second member 22 continues to be connected with the first member 21, it is ensured that the refrigerant cannot flow out from the outlet 12, the refrigerant in the chamber 13 gradually increases, the space in the chamber 13 continuously decreases with the increase of the refrigerant, the liquid refrigerant pushes the gaseous refrigerant out of the chamber 13, when the refrigerant in the chamber 13 is all liquid refrigerant, the second mechanism 3 drives the second member 22 to move rightward, so that the right end of the first passage 211 is communicated with the left end of the second passage 221, and thus the outlet 12 is opened, at this time, the liquid refrigerant in the chamber 13 may be discharged from the outlet 12.

It should be noted that the first member 21 may be fixed, i.e. fixedly connected to the inner wall of the chamber 13, or the first member 21 may be movable, i.e. slidable along the chamber 13, but in this case, the movable space of the first member 21 needs to be limited, and such flexible adjustment and change should be limited within the protection scope of the present invention without departing from the principle and scope of the present invention. Of course, it is preferred that the first member 21 is fixedly connected to the inner wall of the chamber 13.

It should also be noted that in practical applications, the provision of the first member 21 may be eliminated, i.e. only the second member 22 is retained, in which case the size of the outlet 12 may be adapted to be reduced, corresponding to the formation of the outlet 12 in a closing plate, the second member 22 may be connected to the closing plate to close off the outlet 12, the second passage 221 in the second member 22 communicates with the outlet 12 when the second member 22 is moved to the right, to open the outlet 12, etc., and such modifications and changes to the specific structural form of the first mechanism 2 should be considered within the scope of the present invention without departing from the principle and scope of the present invention. It is of course preferable that the first mechanism 2 adopts the above-described structural form of the first member 21 and the second member 22, which facilitates design and processing, thereby enabling cost reduction.

In addition, it should be noted that, a sliding rib may be provided on the peripheral side of the second member 22, and the sliding rib extends along the moving direction of the second member 22, the number of the sliding ribs may be set to be one, or the number of the sliding ribs may also be set to be multiple, and the multiple sliding ribs are uniformly distributed along the circumferential direction of the second member 22, and correspondingly, one or more sliding grooves are provided at corresponding positions on the inner wall of the chamber 13, and the sliding rib may move along the sliding groove; alternatively, the positions of the sliding rib and the sliding groove may be switched, that is, the sliding groove is provided in the second member 22, and the sliding rib is provided on the inner wall of the chamber 13; the second member 22 is moved by the sliding rib being in sliding engagement with the sliding groove.

Preferably, as shown in fig. 1, a surface of the first member 21 adjacent to the second member 22 (a right end surface of the first member 21 as viewed in the drawing) is a flat surface, a surface of the second member 22 adjacent to the first member 21 (a left end surface of the second member 22 as viewed in the drawing) is a flat surface, and the first channel 211 and the second channel 221 are arranged in a staggered manner.

When the second member 22 is fitted to the first member 21, the right end surface of the first member 21 closes the left end of the second passage 221, the left end surface of the second member 22 closes the right end of the first passage 211, thereby disconnecting the first passage 211 from the second passage 221, and when the second member 22 moves rightward, both the right end of the first passage 211 and the left end of the second passage 221 are opened, thereby allowing the first passage 211 to communicate with the second passage 221.

It should be noted that the right end surface of the first member 21 and the left end surface of the second member 22 may be both vertical planes or inclined planes, and such flexible adjustment and change without departing from the principle and scope of the present invention should be limited within the protection scope of the present invention. Of course, it is preferable to set both the right end surface of the first member 21 and the left end surface of the second member 22 as vertical planes.

It should be further noted that the first channel 211 may be configured as a cylindrical structure, or may also be configured as a circular truncated cone-shaped structure, or may also be configured as an annular structure; likewise, the second channel 221 may be configured as a cylinder, or the second channel 221 may be configured as a circular truncated cone, or the like, and such modifications and changes to the specific shapes of the first channel 211 and the second channel 221 without departing from the spirit and scope of the present invention should be limited within the protection scope of the present invention.

Preferably, as shown in FIG. 1, the first channel 211 is a cylindrical channel. The first passage 211 is provided at a middle position of the first member 21 as viewed in the drawing.

It should be noted that the first passage 211 can be disposed near the top of the first member 21, or the first passage 211 can be disposed near the bottom of the first member 21, etc., and furthermore, the first passage 211 can be cylindrical, or can be square-cylindrical, etc., and such adjustment and change of the specific disposition position and the specific shape of the first passage 211 do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention. Preferably, the first passage 211 is cylindrical and disposed at a central position of the first member 21, and has a simple structure and is easy to process.

Preferably, as shown in fig. 1, the second channel 221 is an annular channel. In the case where the first passage 211 is provided at the center position of the first member 21, the second passage 221 is provided close to the peripheral side of the second member 22.

Preferably, as shown in fig. 1, the second mechanism 3 includes a connecting assembly and a floating member 34, wherein the floating member 34 is connected with the second member 22 of the first mechanism 2 through the connecting assembly, and when the refrigerant in the chamber 13 is entirely in a liquid state, the floating member 34 floats upward to bring the second member 22 of the first mechanism 2 to the right through the connecting assembly and thus cause the first mechanism 2 to open the outlet 12. Through such setting, first mechanism 2 realizes opening or closed state easily, and simple structure improves customer's experience degree.

It should be noted that, the first mechanism 2 is in the closed state at the initial state, the floating member 34 has a certain gravity, at the initial state, the liquid refrigerant in the chamber 13 is less, and the floating member 34 cannot float, and as the content of the liquid refrigerant in the chamber 13 gradually increases, when the refrigerant in the chamber 13 of the refrigerant noise reduction device is all the liquid refrigerant, the floating member 34 is subjected to a larger buoyancy than the gravity of the floating member 34, so that the floating member 34 moves upward, and thereby the second member 22 of the first mechanism 2 is driven by the connecting assembly to move rightward, so that the first passage 211 and the second passage 221 of the first mechanism 2 are communicated, and the outlet 12 is opened.

Preferably, as shown in fig. 1, the connecting assembly includes a first fixed pulley 31, a second fixed pulley 32 and a connecting cable 33, the first fixed pulley 31 is located above the second fixed pulley 32, one end of the connecting cable 33 is fixedly connected with the second member 22 of the first mechanism 2, and the other end of the connecting cable 33 is fixedly connected with the floating member 34 by passing through the first fixed pulley 31 and the second fixed pulley 32 in sequence.

It should be noted that, both the first fixed pulley 31 and the second fixed pulley 32 are fixed in the chamber 13, and the combination of the first fixed pulley 31 and the second fixed pulley 32 can adjust the vertical tension to the horizontal tension; meanwhile, the annular grooves are formed on the peripheral sides of the first fixed pulley 31 and the second fixed pulley 32, and are recessed in the radial direction, so that the connecting cable 33 can be prevented from being disengaged from the first fixed pulley 31 and the second fixed pulley 32, and the friction between the connecting cable 33 and the first fixed pulley 31 and the second fixed pulley 32 can be reduced, thereby ensuring the normal operation of the second mechanism 3.

It should be noted that one end of the connecting cable 33 may be fixed at the center of the second member 22, or may be fixed at a position of the second member 22 near the lower portion, or may be fixed at a position of the second member 22 near the upper portion; similarly, the other end of the connecting cable 33 can be fixed at the central position of the floating member 34, or at other positions of the floating member 34, preferably, the two ends of the connecting cable 33 are respectively fixed at the central position of the second member 22 and the central position of the floating member 34, so as to ensure that the second member 22 and the floating member 34 are stressed uniformly and perpendicularly to the surface of the second member 22, ensure that the axial direction of the second member 22 is subjected to the minimum resistance, and ensure the axial direction movement tension value of the second member 22.

Preferably, the floating member 34 may be configured as a floating ball, or the floating member 34 may also be configured as a floating block, and preferably, the floating member 34 is configured as a floating ball, so that the floating member 34 is stressed uniformly when floating upward, and it is ensured that the buoyancy generated by the floating member 34 is distributed in a radial direction all the time, so that the floating member 34 moves upward at a uniform speed, and thereby the second member 22 is driven to slide rightward at a uniform speed, and uninterrupted noise generation is avoided.

Preferably, as shown in fig. 1, the chamber 13 of the present invention includes a main chamber 131, a first communicating chamber 132 and a second communicating chamber 133, both ends of the first communicating chamber 132 are respectively communicated with the inlet 11 and the main chamber 131, both ends of the second communicating chamber 133 are respectively communicated with the outlet 12 and the main chamber 131, the first mechanism 2 is located in the second communicating chamber 133, a part of the second mechanism 3 is located in the main chamber 131, and another part of the second mechanism 3 is located in the second communicating chamber 133.

It should be noted that the main chamber 131 is located between the first communicating chamber 132 and the second communicating chamber 133, as seen in the figure, the first communicating chamber 132 is located on the right side, the second communicating chamber 133 is located on the left side, and the main chamber 131 is located in the middle; the internal diameter of first intercommunication cavity 132 equals with the internal diameter of second intercommunication cavity 133, and the internal diameter of first intercommunication cavity 132 is less than the internal diameter of main cavity 131, and meanwhile, the top wall parallel and level of first intercommunication cavity 132, second intercommunication cavity 133 and main cavity 131 is convenient for produce, improves pleasing to the eye degree, is convenient for simultaneously the refrigerant flow in cavity 13.

It should be noted that the inner diameter of the second communication chamber 133 matches the outer diameter of the first mechanism 2 (the first member 21 and the second member 22), and the refrigerant can be prevented from flowing out from the peripheral side of the first mechanism 2; the floating component 34 is positioned in the main chamber 131, and the bottom end of the floating component 34 abuts against the bottom wall of the main chamber 131; meanwhile, the top of the floating member 34 may be flush with the bottom wall of the second communication chamber 133, or the top of the floating member 34 may be lower than the bottom wall of the second communication chamber 133. Preferably, the top of the floating member 34 is lower than the bottom wall of the second communication chamber 133. At this time, the floating member 34 floats upward and does not interfere with the second communication chamber 133, and it is possible to ensure that the liquid refrigerant smoothly flows out of the outlet 12 through the second communication chamber 133.

On the other hand, the invention also provides an air conditioner which comprises the refrigerant noise reduction device, wherein the refrigerant noise reduction device is arranged at the upstream end of the electronic expansion valve of the air conditioner, so that when the air conditioner runs, the noise generated by the air conditioner can be effectively reduced, and the experience of customers is improved.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.