WO2021042720A1 - 一种引风机转换接口及其应用的引风机和风机系统 - Google Patents

一种引风机转换接口及其应用的引风机和风机系统 Download PDF

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Publication number
WO2021042720A1
WO2021042720A1 PCT/CN2020/083930 CN2020083930W WO2021042720A1 WO 2021042720 A1 WO2021042720 A1 WO 2021042720A1 CN 2020083930 W CN2020083930 W CN 2020083930W WO 2021042720 A1 WO2021042720 A1 WO 2021042720A1
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Prior art keywords
conversion interface
section
draft fan
induced draft
inner ring
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PCT/CN2020/083930
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English (en)
French (fr)
Inventor
陈星富
林炎虎
张淼
Original Assignee
中山大洋电机股份有限公司
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Publication date
Priority claimed from CN201921444907.1U external-priority patent/CN210769534U/zh
Priority claimed from CN201910823101.1A external-priority patent/CN110374926A/zh
Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2021042720A1 publication Critical patent/WO2021042720A1/zh
Priority to US17/533,025 priority Critical patent/US11788554B2/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/706—Humidity separation

Definitions

  • the invention relates to an induced draft fan conversion interface and an induced draft fan and fan system used in the same.
  • the existing induced draft fan includes a volute and a wind wheel installed in the inner cavity of the volute.
  • the wind wheel is connected to a rotating shaft of a motor and is driven to rotate by the rotating shaft.
  • the side of the volute is provided with an air outlet pipe.
  • the air outlet pipe includes an inner pipe and an outer pipe.
  • the inner pipe communicates with the inner cavity and forms an air outlet channel of the induced draft fan.
  • the outer pipe surrounds the inner pipe, and the outer pipe is connected to the inner pipe.
  • An annular groove is formed therebetween, the outer pipe is provided with at least one drainage hole at the bottom of the annular groove, and a drainage pipe protrudes from the drainage hole.
  • a conversion is installed on the air outlet pipe of the induced draft fan.
  • the conversion interface is embedded in the annular groove
  • a sealing ring is further provided between the conversion interface and the outer tube
  • a positioning mechanism is provided between the inner tube and the conversion interface, and the positioning The mechanism realizes the circumferential limit of the conversion interface
  • the outer end of the outer tube is provided with a curved groove that extends in the axial and circumferential directions and divides the outer tube into a fixed part and a movable part
  • a first convex edge and a second convex edge protrude in the outer circumferential direction of the outer tube, the first convex edge is provided on the end surface of the outer tube, and the first convex edge and the second convex edge are different from each other.
  • a positioning groove is formed between the grooves, and the groove is arranged in the positioning groove.
  • a locking device is installed in the positioning groove.
  • the conversion interface has many parts, assembly is troublesome, and the manufacturing cost is high; and the angle and length of the connection between the conversion interface and the outer tube are fixed, resulting in poor versatility of the conversion interface.
  • the purpose of the present invention is to provide an induced draft fan conversion interface, through which the structure of the conversion interface and the load can be installed more simply and conveniently, and the condensate can be discharged easily through the water storage cavity and the drain hole.
  • Another object of the present invention is to provide an induced draft fan, which simplifies the installation structure, reduces the parts, reduces the cost, and the installation is simpler and more efficient.
  • Another object of the present invention is to provide a fan system, which is connected with the outer tube through a foldable conversion interface, so that the installation angle and length can be adapted to different load requirements, and the versatility of the conversion interface is improved.
  • the object of the present invention is to provide an induced draft fan conversion interface, which is characterized in that: the conversion interface includes an assembly section, a transition section and an outlet section, the assembly section and the outlet section are respectively located at both ends of the transition section, and the assembly section It includes an inner ring and an outer ring.
  • the top end of the outer ring is connected with a transition section.
  • the ends of the inner ring and the outer ring are connected with a connecting plate.
  • the inner ring, the outer ring and the connecting plate form a water storage space.
  • the outer ring is provided with at least one drainage hole, and a drainage pipe protrudes from the drainage hole, and the drainage hole is in communication with the water storage cavity.
  • a positioning step extends inward from the top end of the inner ring.
  • a groove is provided on the inner wall surface of the inner ring.
  • the transition section is a telescopic and bendable pipe formed by the folds.
  • the outlet section includes a connecting section and an expansion section.
  • One end of the connecting section is connected with the transition section, and the other end is connected with the expansion section.
  • the inner diameter D1 of the expansion section is larger than the outer diameter D2 of the connecting section.
  • the stage is formed between the segments.
  • a first convex edge and a second convex edge protrude from the outer side surface of the expansion section in a circumferential direction, the first convex edge is located on the end surface of the expansion section, and a positioning groove is formed between the first convex edge and the second convex edge.
  • a gap is provided between the first convex edge and the positioning groove.
  • the transition section is made of soft material, and the assembly section and the outlet section are made of hard material.
  • An induced draft fan includes a volute, a wind wheel, and a motor.
  • the volute includes a volute shell and a cover plate installed at the bottom of the volute shell.
  • the volute shell and the cover enclose an inner part where the wind wheel can be installed.
  • the cover is provided with an air inlet, the side of the volute shell extends out of the exhaust duct, and an air outlet is formed at the end of the exhaust duct.
  • the motor includes a rotating shaft, and the motor is installed on the top of the volute shell.
  • the front end of the rotating shaft of the motor extends into the inner cavity of the volute housing to be installed with the wind wheel, and a conversion interface is installed at the air outlet, characterized in that: the conversion interface is the aforementioned conversion interface When the conversion interface is installed at the air outlet, the inner wall surface of the inner ring is closely matched with the outer surface of the exhaust duct.
  • a positioning step extends inward from the top end of the inner ring, and when the conversion interface is installed at the air outlet, the end of the exhaust duct abuts on the positioning step of the inner ring.
  • a groove is provided on the inner wall surface of the inner ring, and a boss is provided on the outer surface of the exhaust duct. When the conversion interface is installed at the air outlet, the groove is sleeved on the boss.
  • a fan system includes an induced draft fan and an outer tube.
  • the air outlet of the induced draft fan and the outer tube are installed and connected through a conversion interface, wherein the conversion interface is the above-mentioned conversion interface, and when the conversion interface is installed in the outlet
  • a telescopic and bendable pipe is formed through the folds of the conversion interface to connect with the outer pipe.
  • the present invention has the following effects:
  • An induced draft fan conversion interface of the present invention includes an assembly section, a transition section, and an outlet section.
  • the assembly section and the outlet section are respectively located at both ends of the transition section.
  • the assembly section includes an inner ring and an outer ring.
  • the top end of the inner ring is connected with the transition section, the end of the inner ring and the outer ring is connected with a connecting plate, the inner ring, the outer ring and the connecting plate are surrounded by a water storage cavity, and the outer ring is provided with at least one Drain hole, a drain pipe protrudes from the drain hole, and the drain hole is in communication with the water storage cavity. It is easier and more convenient to install the load through the conversion interface structure, and the condensed water can be discharged through the water storage cavity and the drain hole. ;
  • An induced draft fan of the present invention includes a volute, a wind wheel, and a motor.
  • the volute includes a volute shell and a cover plate installed at the bottom of the volute shell.
  • the inner cavity of the wheel, the cover plate is provided with an air inlet, the side of the volute shell extends an exhaust duct, and an air outlet is formed at the end of the exhaust duct.
  • the motor includes a rotating shaft, and the motor is installed on the top of the volute shell.
  • the front end of the rotating shaft of the motor extends into the inner cavity of the volute housing to be installed with the wind wheel, and a conversion interface is installed at the air outlet, characterized in that: the conversion interface includes an assembly section, The transition section and the outlet section, the assembly section and the outlet section are respectively located at two ends of the transition section, the assembly section includes an inner ring and an outer ring, the top end of the outer ring is connected to the transition section, the inner ring and the outer ring The end is provided with a connecting plate connection.
  • the conversion interface is installed at the air outlet, the inner wall surface of the inner ring is closely matched with the outer surface of the exhaust duct, which simplifies the installation structure, reduces parts, and reduces costs, and the installation is simpler and more efficient .
  • a fan system of the present invention includes an induced draft fan and an outer tube.
  • the air outlet of the induced draft fan and the outer tube are installed and connected through a conversion interface, characterized in that: the conversion interface includes an assembly section, a transition section, and an outlet section.
  • the section is a flexible pipe formed by the fold part.
  • Figure 1 is a perspective view of the first embodiment
  • Figure 2 is another perspective view of the first embodiment
  • Figure 3 is a cross-sectional view of the first embodiment
  • Figure 4 is a perspective view of the present invention.
  • Figure 5 is another perspective view of the present invention.
  • Figure 6 is a perspective exploded view of the present invention.
  • Figure 7 is another perspective exploded view of the present invention.
  • Figure 8 is a top view of the present invention.
  • Figure 9 is a cross-sectional view of A-A in Figure 8.
  • Figure 10 is a cross-sectional view of Figure 8 B-B;
  • Fig. 11 is a partial enlarged view of C in Fig. 10.
  • this embodiment provides an induced draft fan conversion interface, which is characterized in that: the conversion interface 4 includes an assembly section 41, a transition section 42, and an outlet section 43.
  • the assembly section 41 and The outlet section 43 is located at the two ends of the transition section 42 respectively.
  • the assembly section 41 includes an inner ring 411 and an outer ring 412.
  • the top end of the outer ring 412 is connected to the transition section 42, and the ends of the inner ring 411 and the outer ring 412
  • a connecting plate 413 is provided for connection.
  • the inner ring 411, the outer ring 412 and the connecting plate 413 form a water storage cavity 414.
  • the outer ring 412 is provided with at least one drain hole 415.
  • a drain pipe 416 protrudes, and the drain hole 415 is in communication with the water storage cavity 414, and it is easier and more convenient to install the load through the conversion interface structure, and the condensed water can be discharged easily through the water storage cavity and the drain hole.
  • a positioning step 417 extends inward from the top end of the inner ring 411, which is convenient for installation and axial positioning, and has a simple structure.
  • a groove 4111 is provided on the inner wall surface of the inner ring 411, which is convenient for installation and positioning, and has a simple structure.
  • the transition section 42 is a telescopic and bendable pipe formed by the folds 421, which can be applied to a variety of installation methods and has strong versatility.
  • the outlet section 43 includes a connecting section 431 and an expansion section 432.
  • One end of the connecting section 431 is connected to the transition section 42, and the other end is connected to the expansion section 432.
  • the inner diameter D1 of the expansion section 432 is larger than the outer diameter of the connecting section 431.
  • D2 a stage 433 is formed between the connecting section 431 and the expansion section 432, and the performance of the induced draft fan can be improved by using air guide pipes with different outlet diameters to cooperate with the volute.
  • the outer side surface of the expansion section 432 protrudes circumferentially from a first convex edge 4321 and a second convex edge 4322.
  • the first convex edge 4321 is located on the end surface of the expansion section 432.
  • the first convex edge 4321 and the second convex edge 4321 A positioning slot 4323 is formed between 4322, the structure arrangement is reasonable, and the production of the positioning slot is more standardized.
  • a gap 4324 is provided between the first convex edge 4321 and the positioning groove 4323.
  • the transition section 42 is a soft material, the soft material includes materials such as rubber, silica gel, and TPU, and the assembly section 41 and the outlet section 43 are hard materials, and the hard materials include hard plastics, metals, alloys and other materials.
  • a number of steel rings are provided in the middle of the corrugated portion 421 of the transition section 42 to enhance the rigidity of the conversion interface and prevent the corrugated portion 421 from deforming.
  • an induced draft fan includes a volute 1, a wind wheel 2, and a motor 3.
  • the volute 1 includes a volute shell 11 and a cover plate 12 installed at the bottom of the volute shell 11.
  • the volute shell 11 and the cover plate 12 enclose an inner cavity 13 in which the wind wheel 2 can be installed.
  • the cover plate 12 is provided with an air inlet 14, and the side of the volute shell 11 extends out of the exhaust duct 15, and the exhaust duct 15
  • the end of the motor 3 forms an air outlet 16, the motor 3 includes a rotating shaft 31, the motor 3 is mounted on the top of the volute housing 11, and the front end of the rotating shaft 31 of the motor 3 extends into the inner cavity of the volute housing 11.
  • the conversion interface is the conversion interface described in any one of the above claims 1 to 7, when the conversion When the interface 4 is installed at the air outlet 16, the inner wall surface of the inner ring 411 is closely matched with the outer surface of the exhaust duct 15, which simplifies the installation structure, reduces parts, and reduces costs, and the installation is simpler and more efficient.
  • a positioning step 417 extends inward from the top end of the inner ring 411.
  • the conversion interface 4 is installed at the air outlet 16
  • the end of the exhaust duct 15 abuts on the positioning step 417 of the inner ring 411 and the installation structure is simple , Easy to install, and can be positioned axially.
  • a groove 4111 is provided on the inner wall surface of the inner ring 411, and a boss 151 is provided on the outer surface of the exhaust duct 15.
  • the groove 4111 is sleeved in The boss 151 effectively prevents circumferential rotation between the exhaust duct and the conversion interface.
  • a fan system includes an induced draft fan and an outer tube.
  • the air outlet 16 of the induced draft fan and the outer tube are installed and connected through a conversion interface 4, characterized in that: the conversion interface is implemented as described above
  • the conversion interface 4 is installed at the air outlet 16
  • the folds 421 of the conversion interface 4 form a telescopic and bendable pipe to connect to the outer pipe, and to connect to the outer pipe through a foldable conversion interface
  • the installation angle and length can be adapted to the needs of different loads, and the versatility of the conversion interface can be improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种引风机转换接口及其应用的引风机和风机系统，转换接口（4）包括装配段（41）、过渡段（42）和出口段（43），装配段（41）和出口段（43）分别位于过渡段（42）的两端，装配段（41）包括内圈（411）和外圈（412），外圈（412）的顶端与过渡段（42）连接，内圈（411）和外圈（412）的末端与连接板（413）连接，转换接口（4）安装在出风口（16）处，内圈（411）的内壁面与排风管道（15）的外表面紧密配合，简化安装结构，减少零件，安装更加简单高效。

Description

一种引风机转换接口及其应用的引风机和风机系统 技术领域：
本发明涉及一种引风机转换接口及其应用的引风机和风机系统。
背景技术：
现有的引风机包括蜗壳和安装在蜗壳内腔的风轮，所述风轮与一电机的转轴连接并由所述转轴带动转动，所述蜗壳的侧部设有出风管，所述出风管包括内管和外管，所述内管与所述内腔连通并形成引风机的出风通道，所述外管包围所述内管，所述外管与所述内管之间形成环状凹槽，所述外管于所述环状凹槽底部设有至少一个排水孔，所述排水孔外凸出有排水管，在所述引风机的出风管上安装转换接口，所述转换接口嵌装在所述环状凹槽内，所述转换接口与所述外管之间还设有密封圈，在内管和转换接口之间设置定位机构，所述的定位机构实现转换接口周向的限位，所述外管的外端设有一弯曲状的凹槽，所述凹槽沿轴向和周向延伸并将所述外管分隔成固定部和活动部，所述外管的外侧周向凸出有第一凸边和第二凸边，所述第一凸边设置在所述外管的端面，所述第一凸边与所述第二凸边之间形成定位槽，所述凹槽设置在所述定位槽内，在定位槽里面安装锁紧装置，锁紧装置将活动部和固定部靠拢起来，从而使外管抱紧转换接口，该结构装配转换接口零部件较多，装配麻烦，制造成本较高；而且转换接口与外管之间连接的角度和长度固定不变，造成转换接口通用性差。
发明内容：
本发明的目的是提供一种引风机转换接口，通过该转换接口结构与负载安装时更加简单方便，通过储水空腔与排水孔便于冷凝水的排出。
本发明的另一目的是提供一种引风机，简化安装结构，减少零件，降低成本，而且安装更加简单高效。
本发明的另一目的是提供一种风机系统，通过可折叠的转换接口与外管连接，实现安装角度和长度可以适应不同负载需要，提高转换接口通用性。
本发明的目的是通过下述技术方案予以实现的。
本发明的目的是提供一种引风机转换接口，其特征在于：所述转换接口包括装配段、过渡段和出口段，所述装配段和出口段分别位于过渡段的两端，所述装配段包括内圈和外圈，所述外圈的顶端与过渡段连接，所述内圈和外圈的末端设有连接板连接，所述内圈、外圈和连接板之间围成储水空腔，所述外圈上至少设有一个排水孔，所述排水孔外凸出有排水管，排水孔与储水空腔是连通。
所述内圈的顶端往内延伸出一定位台阶。
所述内圈的内壁面上设有凹槽。
所述过渡段是由褶皱部形成可伸缩折弯的管道。
所述出口段包括连接段和扩张段，所述连接段的一端与过渡段连接，另一端与扩张段连接，所述扩张段的内径D1大于连接段的外径D2，所述连接段与扩张段之间形成台阶段。
所述扩张段的外侧面周向凸出第一凸边和第二凸边，所述第一凸边位于扩张段的端面，所述第一凸边和第二凸边之间形成定位槽。
所述第一凸边与定位槽之间设有缺口。
所述过渡段为软性材料，装配段和出口段为硬性材料。
所述过渡段的褶皱部中间设有若干钢圈，以增强转换接口的刚性强度，防止褶皱部变形。
一种引风机，包括蜗壳、风轮和电机，所述蜗壳包括蜗壳壳体和安装在蜗壳壳体底部的盖板，蜗壳壳体与盖板围城一个可安装风轮的内腔，盖板上设置进风口，蜗壳壳体的侧面伸出排风管道，在排风管道的端部形成出风口，电机包括转轴,所述电机安装在蜗壳壳体的顶部上，所述电机的转轴的前端部伸入到蜗壳壳体的内腔里面与风轮安装在一起，所述出风口处安装有转换接口，其特征在于：所述转换接口是上述所述的转换接口，当转换接口安装在出风口处时，所述内圈的内壁面与排风管道的外表面紧密配合。
所述内圈的顶端往内延伸出一定位台阶，当转换接口安装在出风口处时，所述排风管道的端部抵在内圈的定位台阶上。
所述内圈的内壁面上设有凹槽，所述排风管道的外表面上设有凸台，当转换接口安装在出风口处时，所述凹槽套装在凸台上。
一种风机系统，包括引风机和外管，所述引风机的出风口和外管通过转换接口安装连接，其特征在于：所述转换接口是上述所述的转换接口，当转换接口安装在出风口处时，通过转换接口的褶皱部形成可伸缩折弯的管道与外管连接。
本发明与现有技术相比，具有如下效果：
1)本发明一种引风机转换接口包括装配段、过渡段和出口段，所述装配段和出口段分别位于过渡段的两端，所述装配段包括内圈和外圈，所述外圈的顶端与过渡段连接，所述内圈和外圈的末端设有连接板连接，所述内圈、外圈和连接板之间围成储水空腔，所述外圈上至少设有一个排水孔，所述排水孔外凸出有排水管，排水孔与储水空腔是连通，通过该转换接口结构与负载安装时更加简单方便，通过储水空腔与排水孔便于冷凝水的排出；
2)本发明一种引风机包括蜗壳、风轮和电机，所述蜗壳包括蜗壳壳体和安装在蜗壳壳体底部的盖板，蜗壳壳体与盖板围城一个可安装风轮的内腔，盖板上设置进风口，蜗壳壳体的侧面伸出排风管道，在排风管道的端部形成出风口，电机包括转轴,所述电机安装在蜗壳壳体的顶部上，所述电机的转轴的前端部伸入到蜗壳壳体的内腔里面与风轮安装在一起，所述出风口处安装有转换接口，其特征在于：所述转换接口包括装配段、过渡段和出口段，所述装配段和出口段分别位于过渡段的两端，所述装配段包括内圈和外圈，所述外圈的顶端与过渡段连接，所述内圈和外圈的末端设有连接板连接，当转换接口安装在出风口处时，所述内圈的内壁面与排风管道的外表面紧密配合，简化安装结构，减少零件，降低成本，而且安装更加简单高效。
3)本发明一种风机系统包括引风机和外管，所述引风机的出风口和外管通 过转换接口安装连接，其特征在于：所述转换接口包括装配段、过渡段和出口段，过渡段是由褶皱部形成可伸缩折弯的管道，当转换接口安装在出风口处时，通过转换接口的褶皱部形成可伸缩折弯的管道与外管连接，通过可折叠的转换接口与外管连接，实现安装角度和长度可以适应不同负载需要，提高转换接口通用性。
4)本发明的其它优点在实施例部分展开详细描述。
附图说明：
图1是实施例一的立体图；
图2是实施例一的另一角度立体图；
图3是实施例一的剖视图；
图4是本发明的立体图；
图5是本发明的另一角度立体图；
图6是本发明的立体分解图；
图7是本发明的另一角度立体图分解图；
图8是本发明的俯视图；
图9是图8中A-A的剖视图；
图10是图8中B-B的剖视图；
图11是图10中C的局部放大图。
具体实施方式：
下面通过具体实施例并结合附图对本发明作进一步详细的描述。
实施例一：
如图1至图3所示，本实施例提供的是一种引风机转换接口，其特征在于：所述转换接口4包括装配段41、过渡段42和出口段43，所述装配段41和出口段43分别位于过渡段42的两端，所述装配段41包括内圈411和外圈412，所述外圈412的顶端与过渡段42连接，所述内圈411和外圈412的末端设有连接板413连接，所述内圈411、外圈412和连接板413之间围成储水空腔414，所 述外圈412上至少设有一个排水孔415，所述排水孔415外凸出有排水管416，排水孔415与储水空腔414是连通，通过该转换接口结构与负载安装时更加简单方便，通过储水空腔与排水孔便于冷凝水的排出。
所述内圈411的顶端往内延伸出一定位台阶417，便于安装轴向定位，结构简单。
所述内圈411的内壁面上设有凹槽4111，便于安装定位，结构简单。
所述过渡段42是由褶皱部421形成可伸缩折弯的管道，可以应用于多种安装方式，通用性强。
所述出口段43包括连接段431和扩张段432，所述连接段431的一端与过渡段42连接，另一端与扩张段432连接，所述扩张段432的内径D1大于连接段431的外径D2，所述连接段431与扩张段432之间形成台阶段433，可以通过使用不同出风直径的导风管与蜗壳配合提高引风机性能。
所述扩张段432的外侧面周向凸出第一凸边4321和第二凸边4322，所述第一凸边4321位于扩张段432的端面，所述第一凸边4321和第二凸边4322之间形成定位槽4323，结构布置合理，定位槽生产更规范。
所述第一凸边4321与定位槽4323之间设有缺口4324。所述过渡段42为软性材料，所述软性材料包括橡胶、硅胶和TPU等材料，装配段41和出口段43为硬性材料，所述硬性材料包括硬质塑料、金属和合金等材料。
所述过渡段42的褶皱部421中间设有若干钢圈，以增强转换接口的刚性强度，防止褶皱部421变形。
实施例二：
如图4至图11所示，一种引风机，包括蜗壳1、风轮2和电机3，所述蜗壳1包括蜗壳壳体11和安装在蜗壳壳体11底部的盖板12，蜗壳壳体11与盖板12围城一个可安装风轮2的内腔13，盖板12上设置进风口14，蜗壳壳体11的侧面伸出排风管道15，在排风管道15的端部形成出风口16，电机3包括转轴 31,所述电机3安装在蜗壳壳体11的顶部上，所述电机3的转轴31的前端部伸入到蜗壳壳体11的内腔13里面与风轮2安装在一起，所述出风口16处安装有转换接口4，其特征在于：所述转换接口是上述权利要求1至权利要求7任意一项所述的转换接口，当转换接口4安装在出风口16处时，所述内圈411的内壁面与排风管道15的外表面紧密配合，简化安装结构，减少零件，降低成本，而且安装更加简单高效。
所述内圈411的顶端往内延伸出一定位台阶417，当转换接口4安装在出风口16处时，所述排风管道15的端部抵在内圈411的定位台阶417上安装结构简单，便于安装，还能轴向定位。
所述内圈411的内壁面上设有凹槽4111，所述排风管道15的外表面上设有凸台151，当转换接口4安装在出风口16处时，所述凹槽4111套装在凸台151上，有效防止排风管道与转换接口之间周向转动。
实施例三：
如图3和图6所示，一种风机系统，包括引风机和外管，所述引风机的出风口16和外管通过转换接口4安装连接，其特征在于：所述转换接口是上述实施例一所述的转换接口，当转换接口4安装在出风口16处时，通过转换接口4的褶皱部421形成可伸缩折弯的管道与外管连接，通过可折叠的转换接口与外管连接，实现安装角度和长度可以适应不同负载需要，提高转换接口通用性。
以上实施例为本发明的较佳实施方式，但本发明的实施方式不限于此，其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本发明的保护范围之内。

Claims (13)

  1. 一种引风机转换接口，其特征在于：所述转换接口(4)包括装配段(41)、过渡段(42)和出口段(43)，所述装配段(41)和出口段(43)分别位于过渡段(42)的两端，所述装配段(41)包括内圈(411)和外圈(412)，所述外圈(412)的顶端与过渡段(42)连接，所述内圈(411)和外圈(412)的末端设有连接板(413)连接，所述内圈(411)、外圈(412)和连接板(413)之间围成储水空腔(414)，所述外圈(412)上至少设有一个排水孔(415)，所述排水孔(415)外凸出有排水管(416)，排水孔(415)与储水空腔(414)是连通。
  2. 根据权利要求1所述的一种引风机转换接口，其特征在于：所述内圈(411)的顶端往内延伸出一定位台阶(417)。
  3. 根据权利要求2所述的一种引风机转换接口，其特征在于：所述内圈(411)的内壁面上设有凹槽(4111)。
  4. 根据权利要求1或2或3所述的一种引风机转换接口，其特征在于：所述过渡段(42)是由褶皱部(421)形成可伸缩折弯的管道。
  5. 根据权利要求4所述的一种引风机转换接口，其特征在于：所述出口段(43)包括连接段(431)和扩张段(432)，所述连接段(431)的一端与过渡段(42)连接，另一端与扩张段(432)连接，所述扩张段(432)的内径D1大于连接段(431)的外径D2，所述连接段(431)与扩张段(432)之间形成台阶段(433)。
  6. 根据权利要求5所述的一种引风机转换接口，其特征在于：所述扩张段(432)的外侧面周向凸出第一凸边(4321)和第二凸边(4322)，所述第一凸边(4321)位于扩张段(432)的端面，所述第一凸边(4321)和第二凸边(4322)之间形成定位槽(4323)。
  7. 根据权利要求6所述的一种引风机转换接口，其特征在于：所述第一凸边(4321)与定位槽(4323)之间设有缺口(4324)。
  8. 根据权利要求1所述的一种引风机转换接口，其特征在于：所述过渡段(42)为软性材料，装配段(41)和出口段(43)为硬性材料。
  9. 根据权利要求4所述的一种引风机转换接口，其特征在于：所述过渡段(42)的褶皱部(421)中间设有若干钢圈，以增强转换接口的刚性强度，防止褶皱部(421)变形。
  10. 一种引风机，包括蜗壳(1)、风轮(2)和电机(3)，所述蜗壳(1)包括蜗壳壳体(11)和安装在蜗壳壳体(11)底部的盖板(12)，蜗壳壳体(11)与盖板(12)围城一个可安装风轮(2)的内腔(13)，盖板(12)上设置进风口(14)，蜗壳壳体(11)的侧面伸出排风管道(15)，在排风管道(15)的端部形成出风口(16)，电机(3)包括转轴(31),所述电机(3)安装在蜗壳壳体(11)的顶部上，所述电机(3)的转轴(31)的前端部伸入到蜗壳壳体(11)的内腔(13)里面与风轮(2)安装在一起，所述出风口(16)处安装有转换接口(4)，其特征在于：所述转换接口是上述权利要求1至权利要求9任意一项所述的转换接口，当转换接口(4)安装在出风口(16)处时，所述内圈(411)的内壁面与排风管道(15)的外表面紧密配合。
  11. 根据权利要求10所述的一种引风机，其特征在于：所述内圈(411)的顶端往内延伸出一定位台阶(417)，当转换接口(4)安装在出风口(16)处时，所述排风管道(15)的端部抵在内圈(411)的定位台阶(417)上。
  12. 根据权利要求11所述的一种引风机，其特征在于：所述内圈(411)的内壁面上设有凹槽(4111)，所述排风管道(15)的外表面上设有凸台(151)，当转换接口(4)安装在出风口(16)处时，所述凹槽(4111)套装在凸台(151)上。
  13. 一种风机系统，包括引风机和外管，所述引风机的出风口(16)和外管通过转换接口(4)安装连接，其特征在于：所述转换接口是上述权利要求4至权利要求9任意一项所述的转换接口，当转换接口(4)安装在出风口(16)处时，通过转换接口(4)的褶皱部(421)形成可伸缩折弯的管道与外管连接。
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