A sound-absorbing structure based on a four-way valve and an air-conditioning system using the same

Abstract

The present invention specifically discloses a muffler structure based on a four-way valve, comprising: a four-way valve body, wherein a flow inlet and a flow outlet are arranged inside the four-way valve body; a block mechanism, wherein the block mechanism is movably connected to the inner wall of the four-way valve body and is located between the flow inlet and the flow outlet, a muffler cavity is arranged between the block mechanism and the flow inlet, and the outward expansion of the block mechanism increases the volume of the muffler cavity or the inward contraction of the block mechanism reduces the volume of the muffler cavity. The muffler structure based on a four-way valve of the present invention has strong operational flexibility, can realize the increase of the effective muffler cavity volume in the valve body, and improve the effective muffler performance of the four-way valve monomer.

Description

Technical Field

[0001] The present invention relates to the technical field of four-way valves, and in particular to a muffler structure based on a four-way valve and an air conditioning system using the same. Background Art

[0002] Transmission noise is a common noise problem in air conditioning systems, which usually causes serious after-sales complaints. Mufflers are an effective way to solve the transmission noise of air conditioning systems, but the use of mufflers will also increase the cost of the whole machine, and the placement of the muffler in the exhaust pipe will increase the weight of the exhaust pipe and cause exhaust pipe stress problems. As an important component of the air conditioning system, the four-way valve is mainly used for reversing (to switch the flow direction of the refrigerant between cooling and heating). At the same time, as a cavity structure, the four-way valve also has a certain noise reduction performance.

[0003] However, most of the existing four-way valves have poor silencing performance and small silencing volume, which greatly limits their use. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a muffler structure based on a four-way valve. The muffler structure based on a four-way valve has strong operational flexibility, can increase the volume of the effective muffler cavity in the valve body, and improve the effective muffler performance of the four-way valve unit.

[0005] The above-mentioned problem to be solved by the present invention is achieved through the following technical solutions:

[0006] A silencer structure based on a four-way valve comprises: a four-way valve body, wherein a flow inlet and a flow outlet are arranged inside the four-way valve body; a block mechanism, wherein the block mechanism is movably connected to the inner wall of the four-way valve body and is located between the flow inlet and the flow outlet, a silencer cavity is arranged between the block mechanism and the flow inlet, and the outward expansion of the block mechanism increases the volume of the silencer cavity or the inward contraction of the block mechanism reduces the volume of the silencer cavity.

[0007] Preferably, the block mechanism includes a block, a slider and a partition assembly, the block is provided with an air inlet, the slider is clamped and connected to the slider mounting port in the middle of the block, the partition assembly is movably connected to the limiting hole at the bottom side end of the block and the outer wall of the partition assembly is tightly attached to the inner wall of the four-way valve body, the block can move outward or inward and can extend to below the air inlet.

[0008] Preferably, two baffle assemblies are selected and both are movably connected to the left and right ends of the stopper.

[0009] Preferably, the baffle assembly includes a limiting nut, an adjustment spring and a baffle plate, the baffle plate is inserted into the interior of the limiting hole and can extend to the bottom of the air inlet, the limiting nut is connected to the end of the baffle plate located inside the limiting hole, the adjustment spring is located between the limiting nut and the baffle plate and the adjustment spring is located inside the limiting hole.

[0010] Preferably, the limiting hole is a flat T-shaped limiting hole, and the limiting nut and the adjustment spring are both located at the T-shaped head of the limiting hole.

[0011] Preferably, the baffle assembly includes a baffle longitudinal dividing plate, a sealing transverse dividing plate and a limiting rod, the outer wall of the baffle longitudinal dividing plate is tightly attached to the inner wall of the four-way valve body and close to the side end of the stopper, the sealing transverse dividing plate is fixed to the side end of the baffle longitudinal dividing plate and can extend to the bottom of the air inlet, the limiting rod is fixed to the side end of the baffle longitudinal dividing plate close to the sealing transverse dividing plate, and the limiting rod can be inserted into the interior of the limiting hole and fixedly connected to the limiting nut.

[0012] Preferably, the air inlet is an L-shaped or convex-shaped air inlet in which the diameter of the air inlet end is smaller than the diameter of the air outlet end.

[0013] The present invention also provides an air conditioning system using the above silencer structure based on the four-way valve.

[0014] Beneficial effect: After adopting the structure described in the present invention, the volume of the silencer cavity inside the valve body of the four-way valve can be increased or reduced by contracting inward or expanding outward through the block mechanism, so that the silencer can be flexibly and more efficiently achieved, thereby improving the silencer characteristics of the entire pipeline system, realizing the miniaturization design of the silencer, and greatly improving the reliability of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the decomposed structure of a muffler structure based on a four-way valve described in the present invention.

[0016] Figure 2 It is a schematic diagram of the main cross-sectional structure of a muffler structure based on a four-way valve described in the present invention.

[0017] Figure 3 It is a schematic diagram of the explosion structure of a stopper mechanism of a silencer structure based on a four-way valve described in the present invention.

[0018] Figure 4 It is a cross-sectional structural diagram of a stopper mechanism of a muffler structure based on a four-way valve described in the present invention in a shutdown state.

[0019] Figure 5 yes Figure 4Schematic diagram of the enlarged structure of part B.

[0020] Figure 6 It is a cross-sectional structural diagram of a stopper mechanism of a muffler structure based on a four-way valve described in the present invention in a startup and operation state.

[0021] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of part C.

[0022] Figure 8 It is a partial structural cross-sectional schematic diagram of a stopper mechanism of a muffler structure based on a four-way valve described in the present invention.

[0023] Fig. 9 It is a comparison curve of the noise reduction performance between the noise reduction structure based on the four-way valve described in the present invention and the existing common four-way valve structure.

[0024] Figure 1-8 :1- four-way valve body; 2- stopper mechanism; 3- silencer cavity; 4- stopper; 5- air inlet; 6- slider installation port; 7- slider; 8- baffle assembly; 9- limiting hole; 10- limiting nut; 11- adjusting spring; 12- baffle plate; 13- baffle longitudinal dividing plate; 14- sealing transverse dividing plate; 15- limiting dividing rod; 16- flow inlet; 17- flow outlet. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the embodiments do not limit the present invention in any form.

[0026] Embodiment 1:

[0027] like Figure 1-2 A silencer structure based on a four-way valve is shown, comprising: a four-way valve body 1, wherein a flow inlet 16 and a flow outlet 17 are provided inside the four-way valve body 1; a block mechanism 2, wherein the block mechanism 2 is movably connected to the inner wall of the four-way valve body 1 and is located between the flow inlet 16 and the flow outlet 17, a silencer cavity 3 is provided between the block mechanism 2 and the flow inlet 16, and the outward expansion of the block mechanism 2 increases the volume of the silencer cavity 3 or the inward contraction of the block mechanism 2 reduces the volume of the silencer cavity 3.

[0028] In this embodiment, the block mechanism can shrink inward or expand outward to increase or decrease the volume of the silencer cavity inside the valve body of the four-way valve, thereby flexibly and more efficiently silencing, thereby improving the silencer characteristics of the entire pipeline system, realizing the miniaturization design of the silencer, and greatly improving the reliability of the pipeline.

[0029] The other structures in this embodiment are the same as those in Embodiment 1, except that: Figure 1-7 As shown, the block mechanism 2 includes a block 4, a slider 7 and a baffle assembly 8, the block 4 is provided with an air inlet 5, the slider 7 is clamped and connected to the slider mounting port 6 in the middle of the block 4, the baffle assembly 8 is movably connected to the limiting hole 9 at the bottom side end of the block 4 and the outer wall of the baffle assembly 8 is tightly attached to the inner wall of the four-way valve body 1, the block 4 can move outward or inward and can extend to the bottom of the air inlet 5, and the flowing gas is guided by the baffle of the block, and then the baffle assembly runs to the left and right ends due to the pressure change of the flowing gas, so as to realize the flexible adjustment of the increase of the silencer cavity of the four-way valve body, improve the silencer performance, and at the same time ensure the flow smoothness.

[0030] The other structures of this embodiment are the same as those of the above embodiment, except that: Figure 3 As shown, two baffle assemblies 8 are selected and are movably connected to the left and right ends of the stopper 4. The volume of the silencing cavity can be adjusted more flexibly through the two baffle assemblies, further improving the silencing performance.

[0031] The other structures of this embodiment are the same as those of the above embodiment, except that: Figure 3 As shown, the baffle assembly 8 includes a limiting nut 10, an adjusting spring 11 and a baffle plate 12. The baffle plate 12 is inserted into the interior of the limiting hole 9 and can extend to the bottom of the air inlet 5. The limiting nut 10 is connected to the end of the baffle plate 12 located inside the limiting hole 9. The adjusting spring 11 is located between the limiting nut 10 and the baffle plate 12 and the adjusting spring 11 is located inside the limiting hole 9. The limiting of the limiting nut and the active limiting of the adjusting spring can ensure the stability of the baffle plate's outward or inward movement adjustment, thereby providing a stable environment for the subsequent adjustment of the silencer cavity.

[0032] The other structures in this embodiment are the same as those in Embodiment 1, except that: Figure 1-7 As shown, the limiting hole 9 is a flat T-shaped limiting hole, and the limiting nut 10 and the adjustment spring 11 are both located at the T-shaped head of the limiting hole 9. The flat T-shaped limiting hole can further ensure the stability of the movable adjustment of the baffle plate and improve the safety of use.

[0033] The other structures in this embodiment are the same as those in Embodiment 1, except that: Figure 3As shown, the baffle assembly 8 includes a baffle longitudinal dividing plate 13, a sealing transverse dividing plate 14 and a limiting rod 15. The outer wall of the baffle longitudinal dividing plate 13 is tightly attached to the inner wall of the four-way valve body 1 and close to the side end of the stopper 4. The sealing transverse dividing plate 14 is fixed to the side end of the baffle longitudinal dividing plate 13 and can extend to the bottom of the air inlet 5. The limiting rod 15 is fixed to the side end of the baffle longitudinal dividing plate 13 close to the sealing transverse dividing plate 14. The limiting rod 15 can be inserted into the interior of the limiting hole 9 and fixedly connected to the limiting nut 10. The volume of the silencer cavity can be effectively adjusted by adjusting the inward or outward movement of the baffle longitudinal dividing plate and the inward or outward movement of the sealing transverse dividing plate, and the smoothness of the flow of the refrigerant gas or the heat medium gas can be ensured.

[0034] The other structures in this embodiment are the same as those in Embodiment 1, except that: Figure 8 As shown, the air inlet 5 is an L-shaped or convex-shaped air inlet whose diameter at the air inlet end is smaller than that at the air outlet end. The sound-absorbing performance can be further improved by designing an air inlet with a suitable and reasonable shape.

[0035] Working principle: When the machine stops, the block mechanism Figure 4 In the indication state, the baffle assembly is close to the slider structure; when the machine is turned on, the refrigerant pressure in the four-way valve increases, and the baffle assembly moves to the right and left respectively under the action of the refrigerant pressure to increase the cavity; and because the larger the cavity, the better the soundproofing performance.

[0036] The silencer structure based on the four-way valve of this embodiment is mainly used in air conditioning systems.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings and the terms "first" and "second", which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A muffler structure based on a four-way valve, characterized in that: include: A four-way valve body, wherein a flow inlet and a flow outlet are provided inside the four-way valve body; A stopper mechanism, wherein the stopper mechanism is movably connected to the inner wall of the four-way valve body and is located between the flow inlet and the flow outlet, a silencer cavity is provided between the stopper mechanism and the flow inlet, and the outward expansion of the stopper mechanism increases the volume of the silencer cavity or the inward contraction of the stopper mechanism reduces the volume of the silencer cavity; The block mechanism includes a block, a slider and a barrier assembly, the block is provided with an air inlet, the slider is clamped and connected to the slider mounting port in the middle of the block, the barrier assembly is movably connected to the limiting hole at the bottom side end of the block and the outer wall of the barrier assembly is tightly attached to the inner wall of the four-way valve body, the block can move outward or inward and can extend to the bottom of the air inlet.

2. A muffler structure based on a four-way valve according to claim 1, characterized in that: Two baffle assemblies are selected and are movably connected to the left and right ends of the baffle.

3. A muffler structure based on a four-way valve according to claim 1, characterized in that: The baffle assembly includes a limiting nut, an adjustment spring and a baffle plate. The baffle plate is inserted into the interior of the limiting hole and can extend to the bottom of the air inlet. The limiting nut is connected to the end of the baffle plate located inside the limiting hole. The adjustment spring is located between the limiting nut and the baffle plate and the adjustment spring is located inside the limiting hole.

4. A muffler structure based on a four-way valve according to claim 3, characterized in that: The limiting hole is a flat T-shaped limiting hole, and the limiting nut and the adjustment spring are both located at the T-shaped head of the limiting hole.

5. A muffler structure based on a four-way valve according to claim 3, characterized in that: The baffle assembly includes a baffle longitudinal dividing plate, a sealing transverse dividing plate and a limiting rod. The outer wall of the baffle longitudinal dividing plate is tightly attached to the inner wall of the four-way valve body and close to the side end of the block. The sealing transverse dividing plate is fixed to the side end of the baffle longitudinal dividing plate and can extend to the bottom of the air inlet. The limiting rod is fixed to the side end of the baffle longitudinal dividing plate close to the sealing transverse dividing plate. The limiting rod can be inserted into the interior of the limiting hole and fixedly connected to the limiting nut.

6. A muffler structure based on a four-way valve according to claim 1, characterized in that: The air inlet is an L-shaped or convex-shaped air inlet whose diameter at the air inlet end is smaller than that at the air outlet end.

7. An air conditioning system, characterized in that: A sound-absorbing structure based on a four-way valve comprising any one of claims 1 to 6.

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