WO2021139490A1 - 过滤消音器及空调设备 - Google Patents
过滤消音器及空调设备 Download PDFInfo
- Publication number
- WO2021139490A1 WO2021139490A1 PCT/CN2020/136110 CN2020136110W WO2021139490A1 WO 2021139490 A1 WO2021139490 A1 WO 2021139490A1 CN 2020136110 W CN2020136110 W CN 2020136110W WO 2021139490 A1 WO2021139490 A1 WO 2021139490A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- filter
- prefabricated
- flanging
- silencer
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
Definitions
- This application relates to the field of air conditioning control technology, and in particular to a filter muffler and air conditioning equipment.
- the filter silencer is a pipe-like device used to reduce airflow noise and filter fluid impurities. It is widely used in the field of air conditioning. Its working principle is to use sound absorption devices, elbows, sudden changes in the pipe cross-sectional area or a combination of them. The noise in the pipeline is attenuated or reflected.
- a filter muffler currently in use is composed of two oppositely sleeved cylinders with varying cross-sectional diameters and a filter screen located in the middle of the diameter reducing cylinder. The fixed part of the filter screen is clamped between the two sleeved reducing diameters. Between the walls of the cylinder.
- the fixed clamping part of the filter screen is subjected to the pressure and deformation of the cylinder body, which will cause stress rebound phenomenon, which makes the cylinder body difficult or impossible to press in, which affects the assembly stability of the filter muffler.
- the large deformation of the fixed clamping part can also cause the hidden danger of damaging the filter, and it is difficult to guarantee the product quality of the filter muffler.
- a filter muffler including a first cylinder, a second cylinder, and a filter screen installed between the first cylinder and the second cylinder, the filter including a mesh body and The prefabricated outer flanging connected to the net body, the prefabricated outer flanging is formed from the end of the net body, the flanging angle of the prefabricated outer flanging is greater than 90°, and the filter screen is covered with the second cylinder through the prefabricated outer flanging At the end of the first cylinder, a filter screen is sheathed.
- the flanging angle of the prefabricated outer flanging is greater than 150°.
- the prefabricated outer flanging is arranged in parallel with the net body, an annular gap is formed between the prefabricated flanging and the net body, and the second cylinder is inserted and fixed in the annular gap.
- the prefabricated outer flanging has a ring shape; or, the prefabricated outer flanging includes a plurality of mutually spaced flanging parts, and the plurality of mutually spaced flanging parts are arranged around the center line of the net body.
- the first cylinder includes a fixing part for the second cylinder to extend into and fix the second cylinder, and the end of the prefabricated outer flange is flush with the end of the fixing part.
- the first cylinder includes a noise reduction part, a fixing part, and a stage connecting the noise reduction part and the fixing part.
- the inner diameter of the fixing part is larger than the inner diameter of the noise reduction part, and the stage stage is used to restrict the second cylinder from extending into the first stage.
- the depth of the cylinder; the shape of the section along the axial direction at the stage is an arc or a straight section.
- prefabricated outer flanging is welded and fixed with the first cylinder
- prefabricated flanging is welded and fixed with the second cylinder.
- the filter silencer further includes a first sleeve and a second sleeve.
- the first sleeve is disposed on the side of the first cylinder relatively far away from the second cylinder, and the second sleeve is disposed on the second cylinder relatively far away from the second cylinder.
- the application also provides an air conditioner, which adopts the filter muffler in any one of the above technical solutions.
- the present application has the following progress compared with the traditional technology: the filter screen is provided with a prefabricated outer flanging with a flanging angle greater than 90°, so that the angle between the prefabricated outer flanging and the mesh body is less than 90°, which means The diameter of its cross-section gradually increases along the pressing direction of the first cylinder, which can provide a guiding effect when the first cylinder is press-fitted, so as to prevent the strain from the outer flanging of the filter from being squeezed by the first cylinder.
- the spring phenomenon solves the problem that the cylinder is difficult to press into; in addition, after the filter is installed, the distortion and bending amplitude of the prefabricated outer flange material is also reduced.
- Fig. 1 is a schematic structural diagram of a filter muffler according to an embodiment of the application.
- FIG. 2 is a schematic diagram of the structure of the filter silencer after splitting in an embodiment of the application.
- Fig. 3 is a schematic diagram of an embodiment of a filter according to this application.
- FIG. 4 is a schematic structural diagram of an embodiment of the filter net of this application.
- FIG. 5 is a schematic diagram of another embodiment of the filter net of this application.
- Fig. 6 is an enlarged schematic diagram of A in the filter silencer shown in Fig. 1.
- Fig. 7 is an enlarged schematic diagram of B in the filter silencer shown in Fig. 2.
- Fig. 8 is a schematic structural diagram of B in another embodiment of the filter silencer shown in Fig. 2.
- Filter silencer 100 First cylinder 10 The inner cavity of the first cylinder 11 Fixed part 12
- Second cylinder 20 The inner cavity of the second cylinder twenty one Filter 30 Net body 31 Prefabricated flanging 32 Annular slot 33 Annular gap 331 First casing 40 Second casing 50
- a component when referred to as being "installed on” another component, it can be directly installed on the other component or a centered component may also exist. When a component is considered to be “installed on” another component, it can be directly installed on another component or a centered component may exist at the same time. When a component is considered “fixed” to another component, it can be directly fixed to the other component or there may be a centered component at the same time.
- FIG. 1 is a schematic structural diagram of a filter silencer 100 in an embodiment of the application.
- the filter muffler 100 is used to reduce airflow noise.
- the filter muffler 100 is used to reduce the noise of the air conditioner.
- the filter silencer 100 may also be used in other types of air conditioning control applications such as blowers, air-cooled equipment, and the like.
- the filter silencer 100 includes a first cylinder 10, a second cylinder 20, and a filter mesh 30 installed between the first cylinder 10 and the second cylinder 20.
- the first cylinder 10 and the second cylinder 20 are pipes with varying diameters and are installed relative to each other, and the two cylinders and the filter screen are both fixedly connected.
- the filter 30 also functions as a sound-absorbing lining. noise.
- the second cylinder 20 serves as the installation base of the filter screen 30.
- the filter mesh body 31 enters the inner cavity 21 of the second cylinder body, the end of the second cylinder body 20 abuts against the fixed clamping section of the filter mesh, and the inner cavity 21 of the second cylinder body accommodates the filter mesh body 31.
- the second cylinder 20 has a hollow cylindrical shape with different cross-sectional areas. It is understandable that, in other embodiments, the second cylinder 20 can also be a square cylinder or a long pipe with an elbow. As long as it is provided with a cross section with abrupt changes in area, the internal acoustic impedance can be discontinuous. That's it.
- the filter screen 30 serves as a sound absorbing device and a filtering device inside the filter muffler 100, and functions as a sound absorbing lining and filtering fluid impurities.
- the filter net 30 includes a net body 31 and a fixed clamping section extending from the end of the net body and bent at a certain angle.
- the net body 31 has a revolving structure with one end protruding in the axial direction and the protruding end closed, and the other end is open.
- the net body 31 and the fixed clamping section are integrally formed.
- the net body 31 is accommodated in the inner cavity 21 of the second cylinder body, and the end surface of the fixed clamping section close to the axially protruding side of the net body abuts against the end of the second cylinder body 20, so that the second cylinder body 20 and the filter
- the net 30 is installed as a whole and inserted into the inner cavity 11 of the first cylinder. Under the squeeze of the first cylinder 10, the fixed clamping section deforms and is fixed between the tube wall of the first cylinder 10 and the tube wall of the second cylinder 20 opposite to it.
- the mesh body 31 is cylindrical. It can be understood that in other embodiments, the mesh body may also be conical or hemispherical, as long as it has a filter and sound absorption effect and has a closed surface at one end. That's it.
- the first cylinder 10 is used to sleeve the second cylinder 20 and the filter screen 30.
- Assembly process The filter screen 30 is sleeved on the second cylinder body 20 through a fixed clamping section, and the first cylinder body 10 is pressed against the whole formed by the second cylinder body 20 and the filter screen 30, under the squeeze of the first cylinder body 10 , The fixed clamping section is deformed.
- the tube wall of the first cylinder 10, the fixed clamping section deformed under pressure, and the tube wall of the second cylinder 20 form a radial tight fit.
- the inner diameter of the pipe at the press-in end of the first cylinder 10 is larger than the pipe outer diameter of the second cylinder 20 that can extend into the cavity 11 of the first cylinder, and the pipe at the press-in end of the first cylinder 10 has an inner diameter larger than that after it is press-in.
- the first cylinder 10 is a pipe with multiple cross-sectional diameters that has almost the same shape as the second cylinder 20. It is understandable that in other embodiments, the first cylinder may also be a square cylinder.
- the shape of a long pipe with an elbow, as long as it is provided with a cross section with a sudden change in area, can realize the discontinuity of the internal acoustic impedance and is not limited to a circular tube.
- the folding angle of the fixed clamping section of the filter screen relative to the opening direction of the screen body is relatively small, so the included angle between the fixed clamping section and the screen body, that is, the supplementary angle of the above folding angle is relatively large.
- the fixed clamping section undergoes a large deformation under pressure, and a springback stress is generated, so that the installation operator cannot quickly, conveniently, and save effort to press the first cylinder toward the filter
- the net and the second cylinder are integrally formed with a filter; in addition, the fixed clamping section has a large deformation before and after the first cylinder is pressed into and sleeved, and the material is twisted and bent sharply, which may cause the filter during the assembly process.
- the fixed clamping part and even the mesh body are damaged, and it is difficult to guarantee the product quality of the filter muffler after assembly.
- FIG. 2 is a schematic diagram of the structure of the filter silencer 100 after disassembly in an embodiment of this application
- FIG. 3 is a schematic diagram of an embodiment of a filter screen of this application.
- the prefabricated outturned edge 32 extends outward from the end of the net body 31 and is integrally formed with the net body 31.
- the flanging angle of the prefabricated outer flanging 32 is greater than 90°, and after flanging, the included angle between the prefabricated flanging 32 and the net body 31 is less than 90°.
- the flanging angle greater than 90° means that the end portion of the mesh body 31 to be flanged starts from the left side of the filter opening shown in FIG. 3, and is flanged in a clockwise direction with a flip angle ⁇ greater than 90° , Reaching the right side of the filter opening, at this time the ⁇ angle is the flanging angle.
- the included angle ⁇ between the outer flanging 32 and the net body 31 is less than 90°. As shown in Fig. 2, the two sides of ⁇ are the prefabricated outer flanging 32 and the side wall of the net body 31, the angle is the starting point of flanging, and the included angle ⁇ and the flanging angle ⁇ are complementary angles.
- the prefabricated outer flange 32 has the same function as the fixed clamping section, and is also fixed between the tube wall of the first cylinder 10 and the opposite tube wall of the second cylinder 20 to form a radial tight fit.
- the process of installing the filter silencer 100 is as follows: the second cylinder body 20 first extends into the annular cavity 33 represented by the included angle ⁇ , and the filter screen 30 is sleeved on the second cylinder body 20 through the prefabricated outer flange 32. Then the second cylinder 20 and the filter net 30 are inserted into the first cylinder cavity 11 as a whole, and the first cylinder 10 is sleeved with the filter net 30.
- the included angle ⁇ between the prefabricated outer flanging 32 and the net body 31 is less than 90°, which reduces the rebound stress generated by the bending deformation of the outer flanging 32 material, and solves the first problem.
- the cylinder 10 cannot be pressed in; in addition, due to the prefabricated outer flange 32 and the setting of the included angle ⁇ of less than 90°, in the direction in which the first cylinder 10 is pressed into the filter 30, the cross-sectional area of the filter 30 It is not a sudden increase, but a gradual increase, that is, the prefabricated outer flange 32 can provide a guiding function for the first cylinder 10 during the pressing process of the first cylinder 10 to facilitate the pressing of the first cylinder 10.
- FIG. 4 is a schematic structural diagram of an embodiment of the filter screen of the present application.
- the flanging angle ⁇ of the prefabricated flared edge is greater than 150°, and the angle ⁇ between the prefabricated flared edge 32 and the net body 31 is less than 30°.
- the smaller the included angle ⁇ is, the smaller the springback stress of the prefabricated flared edge 32 when it is squeezed and sleeved by the first cylinder 10, and the smaller the bending and bending amplitude of the material at the flared edge, the prefabricated flared edge
- the guiding effect of the edge 32 is also more pronounced, so that the first cylinder body 10 can be press-fitted more easily with this arrangement.
- FIG. 5 is a schematic structural diagram of another embodiment of the filter according to the present application.
- the prefabricated overturned edges 32 are arranged in parallel with the net body 31, and an annular gap 331 is formed between the prefabricated overturned edges 32 and the mesh body 31, and the second cylinder body 20 can be inserted into the annular gap 331.
- the prefabricated outer flanging 32 has the smallest degree of twisting and bending caused by the extrusion of the first cylinder 10, and there is almost no springback stress. Such an arrangement can significantly reduce the difficulty of press-fitting the first cylinder 10.
- the shape of the prefabricated outer flanging 32 is not limited to the ring shape defined in the description of the drawings, but can also be determined according to the processing method of the filter screen. For example, a plurality of flanging structures that are isolated from each other and arranged around the center line of the mesh body are selected. The structure makes it easier to implement the flanging process in the process of processing the filter, and further reduces the deformation of the material at the flanging part, thereby reducing the damage to the surface of the filter, ensuring the processing quality of the filter product, and improving the yield of the filter. .
- FIG. 6 is an enlarged schematic diagram of A in the filter silencer shown in FIG. 1.
- the end of the first cylinder 10 is provided with a fixing part 12, the inner diameter of the fixing part is larger than the outer diameter of the second cylinder 20 opposite to the first cylinder 10, for the second cylinder 20 to extend into the first cylinder
- the second cylinder 20 is fixed in the cavity 11.
- the end of the prefabricated outer flanging 32 is flush with the first cylinder fixing part 12, and this arrangement can ensure that the prefabricated outer flanging 32 and the first cylinder fixing part 12 are fully melted when welding parts, and they are fixed as a whole and tightly connected. .
- Fig. 7 is an enlarged schematic diagram of B in the filter silencer shown in Fig. 2
- Fig. 8 is a schematic structural diagram of B in the filter silencer shown in Fig. 2 in another embodiment.
- the first cylinder 10 is arranged in a structure with different inner wall diameters, and includes a noise reduction part 13, a fixed part 12, and a stage 14 located between the noise reduction part and the fixed part.
- the diameter of the inner wall of the fixed portion 12 is larger than the diameter of the outer wall of the second cylinder 20 and its opposite side, that is, the second cylinder 20 can be inserted and removed freely in the fixed portion 12, and the second cylinder 20 extends into the first cylinder cavity 11
- the end on one side abuts against the stage 14, and the stage 14 is used to limit the depth of the second cylinder 40 extending into the first cylinder 20.
- the cross-sectional shape of the inner wall surface of the stage 14 along the axial direction is a circular arc or a straight line segment.
- the arc-shaped cross-sectional shape can make the stage 14 and the flanging start of the prefabricated outer flanging 32 form a surface contact, which has a larger contact area than a line contact to obtain a more secure positioning; a straight-line section shape It is obtained by traditional hole processing methods, such as using a drill to drill a straight-line section of the stage section.
- the cross-sectional shape of the stage 14 may also be other shapes, such as a stepped shape or a stage with a raised inner surface, as long as the second barrel can be restricted.
- the depth 20 extends into the first cylinder 10 is sufficient, and is not limited to the shape shown in FIGS. 6 and 7.
- the first cylinder body 10, the second cylinder body 20 and the filter screen 30 after installation are fixed by welding.
- the prefabricated outer flanging 32 and the first cylinder 10 can be welded and fixed at their mating position, or the prefabricated outflanging 32 and the second cylinder 20 can be welded and fixed at their mating position, or the above two types can be used.
- the combination of the solutions, that is, the first cylinder body 10, the second cylinder body 20, and the prefabricated outer flange 32 are all fixed as a whole by welding, so as to obtain a reliable fixed connection.
- the installed filter muffler 100 can also be provided with a sleeve, including a first sleeve 40 and a second sleeve 50, the first sleeve 40 is arranged on the first cylinder 10 relatively far away from the second cylinder 20 At one end, the second sleeve 50 is arranged at the end of the second cylinder 20 relatively far away from the first cylinder 10.
- the filter muffler 100 installed with the first and second sleeves is used as an independent component and is welded to the external copper pipe to adapt to the actual use occasions.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Exhaust Silencers (AREA)
- Duct Arrangements (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
过滤消音器 | 100 |
第一筒体 | 10 |
第一筒体内腔 | 11 |
固定部 | 12 |
降噪部 | 13 |
台阶段 | 14 |
第二筒体 | 20 |
第二筒体内腔 | 21 |
过滤网 | 30 |
网体 | 31 |
预制外翻边 | 32 |
环形空槽 | 33 |
环形间隙 | 331 |
第一套管 | 40 |
第二套管 | 50 |
Claims (10)
- 一种过滤消音器,包括第一筒体、第二筒体以及安装于所述第一筒体与所述第二筒体之间的过滤网,其特征在于:所述过滤网包括网体以及连接于所述网体的预制外翻边,所述预制外翻边自所述网体的端部向外延伸形成,所述预制外翻边的翻边角度大于90°,所述过滤网通过所述预制外翻边套设所述第二筒体的端部,所述第一筒体套设所述过滤网。
- 根据权利要求1所述的过滤消音器,其特征在于:所述预制外翻边的翻边角度大于150°。
- 根据权利要求2所述的过滤消音器,其特征在于:所述预制外翻边与所述网体平行设置,所述预制外翻边与所述网体之间形成环状间隙,所述第二筒体***并固定在所述环状间隙中。
- 根据权利要求1所述的过滤消音器,其特征在于:所述预制外翻边为环状。
- 根据权利要求1所述的过滤消音器,其特征在于:所述预制外翻边包括多个相互间隔的翻边部,所述多个相互间隔的翻边部环绕所述网体中心线设置。
- 根据权利要求1所述的过滤消音器,其特征在于:所述第一筒体包括固定部,所述固定部用于供所述第二筒体伸入并固定所述第二筒体,所述预制外翻边的末端与所述固定部端部相平齐。
- 根据权利要求1所述的过滤消音器,其特征在于:所述第一筒体包括降噪部、固定部以及连接所述降噪部及所述固定部的台阶段,所述固定部的内径大于所述降噪部的内径,所述台阶段用于限制所述第二筒体伸入所述第一筒体的深度;所述台阶段沿轴向剖切的形状为圆弧或直线段。
- 根据权利要求1所述的过滤消音器,其特征在于:所述预制外翻边与所述第一筒体焊接固定;且所述预制外翻边与所述第二筒体焊接固定。
- 根据权利要求1所述的过滤消音器,其特征在于:所述过滤消音器还包括第一套管及第二套管,所述第一套管设置在所述第一筒体相对远离所述第二筒体的一侧,所述第二套管设置在所述第二筒体相对远离所述第一筒体的一侧。
- 一种空调设备,包括过滤消音器,其特征在于:所述过滤消音器为权利要求1-9中任意一项所述的过滤消音器。
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KR1020227017743A KR102699469B1 (ko) | 2020-01-09 | 2020-12-14 | 필터 소음기 및 공조 장치 |
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US5551253A (en) * | 1993-12-22 | 1996-09-03 | Samsung Electronics Co., Ltd. | Oil separator for air conditioner |
KR20060081840A (ko) * | 2005-01-10 | 2006-07-13 | 엘지전자 주식회사 | 공기조화기의 스트레이너 일체형 머플러 |
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CN105299976A (zh) * | 2014-07-21 | 2016-02-03 | 美的集团武汉制冷设备有限公司 | 过滤器及具有其的空调器 |
CN206281260U (zh) * | 2016-11-30 | 2017-06-27 | 芜湖美智空调设备有限公司 | 节流部件及具有其的空调器 |
CN108731317A (zh) * | 2018-06-11 | 2018-11-02 | 嵊州市新高轮制冷设备有限公司 | 一种新型空调压缩机储液器 |
CN110630832A (zh) * | 2019-08-23 | 2019-12-31 | 新昌县润达机械有限公司 | 一种制冷设备用管件连接结构及其装配制作方法 |
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JP7348399B2 (ja) | 2023-09-20 |
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