WO2021196711A1 - 一种用于风机式燃气热水器中的叶轮 - Google Patents

一种用于风机式燃气热水器中的叶轮 Download PDF

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Publication number
WO2021196711A1
WO2021196711A1 PCT/CN2020/134836 CN2020134836W WO2021196711A1 WO 2021196711 A1 WO2021196711 A1 WO 2021196711A1 CN 2020134836 W CN2020134836 W CN 2020134836W WO 2021196711 A1 WO2021196711 A1 WO 2021196711A1
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WO
WIPO (PCT)
Prior art keywords
groove
bottom plate
upper plate
fixing
fan
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PCT/CN2020/134836
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English (en)
French (fr)
Inventor
徐利军
Original Assignee
常熟市斯佳登电器有限公司
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Application filed by 常熟市斯佳登电器有限公司 filed Critical 常熟市斯佳登电器有限公司
Publication of WO2021196711A1 publication Critical patent/WO2021196711A1/zh

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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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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

Definitions

  • the invention belongs to the technical field of gas water heater accessories, and in particular relates to an impeller used in a fan-type gas water heater.
  • the blades of centrifugal wind wheels mostly adopt rectangular shape with orthographic projection surface.
  • the area formed by the blades is also a rectangular area.
  • the wind is sucked in by the negative pressure zone and forms a vortex, which resists when it is tangent to the blades. Big and high noise.
  • FIG. 1 and CN205154741U discloses an impeller of a gas water heater fan, which includes a bottom plate 1, an upper plate 3 and a plurality of blades 2 annularly distributed between the bottom plate 1 and the upper plate 3.
  • the center of the bottom plate 1 is provided with a center hole 4 that can be sleeved into the motor shaft.
  • Each blade 2 includes an upper edge 21 in contact with the upper plate 3, a lower edge 22 in contact with the bottom plate 1, and a side edge connecting the upper edge 21 and the lower edge 22.
  • the side edge includes a first side close to the central hole 4.
  • the upper edge 21 is provided with a cutout 210 downward.
  • the incision 210 has a bottom edge 211, the first side edge 23 has a top end 231, and the top end 231 of the first side edge 23 is lower than the bottom edge 211 of the incision 210, thereby reducing the intensity of turbulence and improving the stability of gas flow, thereby reducing The noise of the fan.
  • the impeller in the prior art impeller, there are two circles of holes near the periphery of the bottom plate and one circle of holes near the periphery of the upper plate.
  • the holes passing through the periphery of the bottom plate are fixed in two rows obliquely on the bottom plate; the impeller in the prior art mainly has the following defects: (1) The perimeter holes on the periphery of the upper plate are troublesome to manufacture; the blade crossing and fixing speed is slow and efficient Low; (2) Two perimeter holes on the periphery of the bottom plate are troublesome to manufacture; blades are slow to pass and fix and have low efficiency; (3)
  • the upper and bottom plates cannot be used in common, and cannot be mixed.
  • the purpose of the present invention is to disclose an impeller used in a fan-type gas water heater, which is realized by adopting the following technical solutions.
  • An impeller used in a fan-type gas water heater has an upper plate, a blade, a bottom plate, two first fixed parts, and two second fixed parts;
  • the center hole of the upper plate, the peripheral edge of the lower surface of the upper plate has a plurality of upper plate engaging strips extending upward and the center of the upper plate, and upper plate engaging grooves are provided between adjacent upper plate engaging strips, and each upper plate The engaging groove does not penetrate the side surface of the upper plate.
  • the upper plate engaging strip has a first oblique groove and a second oblique groove. The first oblique groove is closer to the side surface of the upper plate, and the bottoms of all the first oblique grooves are on the same circumference.
  • the bottoms of all the second chutes are on the same circumference;
  • the center of the bottom plate has a bottom plate center hole that penetrates up and down, and the periphery of the top surface of the bottom plate has a plurality of bottom plate engaging strips protruding upward and toward the center of the bottom plate,
  • There are bottom plate engaging grooves between the adjacent bottom plate engaging strips each upper bottom plate engaging groove does not penetrate the side of the bottom plate,
  • the bottom plate engaging strip has a third chute and a fourth chute, and the third chute Closer to the side of the bottom plate, all the bottoms of the third chute are on the same circumference, and all the bottoms of the fourth chute are on the same circumference;
  • the blade has a blade body, and there is a first groove and a second recess under the blade body Groove, the first groove and the second groove are separated by the main body of the blade, the left side wall of the first groove has a first oblique strip that slopes upward, and the first oblique strip is connected to the
  • the upper part of the main body has a third groove and a fourth groove.
  • the third groove and the fourth groove are separated by the main body of the blade.
  • a third fixing groove is formed between the third diagonal strip and the left side wall of the third groove, the left side wall of the fourth groove has a fourth diagonal strip that slopes downward, the fourth diagonal strip and the fourth groove
  • a fourth fixing groove is formed between the left side walls of the, the bottoms of all the first fixing grooves are on the same circumference, the bottoms of all the second fixing grooves are on the same circumference, and the tops of all the third fixing grooves are on the same circumference , The tops of all the fourth fixing grooves are on the same circumference; when the gas water heater fan impeller is in the assembled state, the lower surface of the upper plate is downward, the blades are placed in the upper plate engaging groove, and a first fixing component is inserted The upper plate and the blade are fixed in the fourth fixing groove and the second chute, and a second fixing part is placed in the third fixing groove and the first chute to
  • the upper surface of the bottom plate is upward and the blade Placed in the bottom plate engaging groove, another first fixing part is placed in the second fixing groove and the second chute to fix the bottom plate and the blade, and the other second fixing part is placed in the first fixing groove and the first chute The bottom plate and the blade are further fixed in the groove.
  • the aforementioned impeller used in a fan-type gas water heater is characterized in that the blade body is in the shape of a rectangular parallelepiped or a fan ring cylinder.
  • the aforementioned impeller used in a fan-type gas water heater is characterized in that the blades are integrally formed.
  • the aforementioned impeller used in a fan-type gas water heater is characterized in that the upper plate is integrally formed.
  • the aforementioned impeller used in a fan-type gas water heater is characterized in that the bottom plate is integrally formed.
  • the above-mentioned impeller used in a fan-type gas water heater is characterized in that the first fixed part is a closed ring structure.
  • the above-mentioned impeller used in a fan-type gas water heater is characterized in that the second fixing member is a closed ring structure.
  • the aforementioned impeller used in a fan-type gas water heater is characterized in that the materials of the first fixing part and the second fixing part are both plastic or rubber.
  • the aforementioned impeller used in a fan-type gas water heater is characterized in that the material of the blade is plastic or steel or iron or ceramic.
  • the aforementioned impeller used in a fan-type gas water heater is characterized in that the upper plate and the bottom plate can have the same structure and shape.
  • the above-mentioned impeller used in a fan-type gas water heater is characterized in that the materials of the upper plate and the bottom plate can be plastic, steel or iron.
  • the invention has the following main beneficial effects: higher assembly efficiency, stronger versatility of the upper plate and bottom plate, more convenient assembly, and lower product cost.
  • Fig. 1 is a schematic diagram of a three-dimensional structure of an impeller in the prior art.
  • FIG. 2 is a schematic diagram of the three-dimensional structure of the upper plate in this application with its back facing upward.
  • FIG. 3 is a schematic diagram of a three-dimensional structure of an embodiment of the blade in this application.
  • Fig. 4 is an enlarged front view of Fig. 3.
  • FIG. 5 is a schematic diagram of the three-dimensional structure of the bottom plate in this application.
  • Fig. 6 is a schematic diagram of a fixing component used in this application.
  • FIG. 7 is a schematic diagram of a three-dimensional structure of another embodiment of the blade in this application.
  • Fig. 8 is an enlarged top view of Fig. 7.
  • Implementation example 1 please see Figures 2 to 6, an impeller used in a fan-type gas water heater, with an upper plate 1, a blade 2, a bottom plate 3, two first fixed parts 4, two second fixed parts Component 5; characterized in that: the center of the upper plate 1 has an upper plate central hole 12 that penetrates up and down, and the peripheral edge of the lower surface 11 of the upper plate has a plurality of upper plate engaging strips 13 extending upward and the center of the upper plate, There are upper plate engaging grooves 14 between adjacent upper plate engaging strips 13, each upper plate engaging groove 14 does not penetrate the upper plate side surface 15, and the upper plate engaging strip 13 has a first chute 131 And the second chute 132, the first chute 131 is closer to the side 15 of the upper plate, the bottoms of all the first chutes 131 are on the same circumference, and the bottoms of all the second chutes 132 are on the same circumference; the bottom plate The center of 3 has a bottom plate center hole 32 that penetrates up and down, and the periphery of the upper surface 31 of the bottom plate
  • the adjacent bottom plate engaging strips 33 have bottom plate engaging Slots 34, each of the upper bottom plate engaging grooves 34 does not penetrate the bottom plate side surface 355, the bottom plate engaging strip 33 has a third chute 331 and a fourth chute 332, the third chute 331 is closer to the bottom plate side 35,
  • the bottoms of all the third oblique grooves 331 are on the same circumference, and the bottoms of all the fourth oblique grooves 332 are on the same circumference;
  • the blade 2 has a blade body 21, which has a rectangular parallelepiped shape, and has a first recess under the blade body.
  • the groove 22 and the second groove 23 are separated by the blade body between the first groove and the second groove.
  • the left side wall of the first groove has a first inclined strip 221 inclined upward.
  • a first fixing groove 222 is formed between the strip and the left side wall of the first groove.
  • the left side wall of the second groove has a second diagonal strip 231 inclined upward.
  • the second diagonal strip is connected to the left side of the second groove
  • a second fixing groove 232 is formed between the walls.
  • a third groove 24 and a fourth groove 25 are provided above the blade body. The third groove and the fourth groove are separated by the blade body.
  • the left side wall has a downwardly inclined third inclined strip 241, a third fixing groove 242 is formed between the third inclined strip and the left side wall of the third groove, and the left side wall of the fourth groove has a downwardly inclined
  • the fourth oblique strip 251, a fourth fixing groove 252 is formed between the fourth oblique strip and the left side wall of the fourth groove, the bottoms of all the first fixing grooves 222 are on the same circumference, and all the second fixing grooves 232
  • the bottom of the gas water heater fan is on the same circumference, the tops of all the third fixing grooves 242 are on the same circumference, and the tops of all the fourth fixing grooves 252 are on the same circumference; when the gas water heater fan impeller is in the assembled state, the upper plate
  • the surface 11 faces downwards, the blade 2 is placed in the upper plate engaging groove 14, a first fixing component 4 is placed in the fourth fixing groove 252 and the second chute 132 to fix the upper plate 1 and the blade 2, a second The fixing member 5 is placed
  • Implementation example 2 please refer to Figures 7 and 8, and refer to Figures 2 to 6, an impeller used in fan-type gas water heaters, basically the same as implementation example 1, except that the blade body is a fan ring column Body shape; this embodiment makes the impeller have stronger wind blowing ability and makes the wind resistance smaller.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the blades are integrally formed.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the upper plate is integrally formed.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the bottom plate is integrally formed.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the first fixed component is a closed ring structure.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the second fixed component is a closed ring structure.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the materials of the first fixing part and the second fixing part are both plastic or rubber.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the material of the blade is plastic or steel or iron.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the upper plate and the bottom plate can have the same structure and shape.
  • the impeller used in the fan-type gas water heater according to any one of the above embodiments is characterized in that the material of the upper plate and the bottom plate can be plastic, steel or iron.
  • the center hole of the upper plate and the center hole of the bottom plate are used to pass the shaft of the motor.
  • the fixing parts when assembling, can be embedded in the first to fourth fixing grooves first, and then the blades can be clamped in.
  • the blades Due to the high elasticity of the fixing parts, the blades can be fixed to the upper plate and the bottom plate, and, Compared with the prior art where the blade passes through the upper plate and the bottom plate, and is melted or bent and fixed on the outside, the fixing method is greatly simplified, which greatly saves time, improves the speed and efficiency; in addition, the upper plate and the bottom plate It is no longer necessary to make one or two holes in the outer periphery, and the upper and bottom plates can be used in common and can be mixed, which reduces the difficulty of procurement and storage; moreover, when the blade is damaged, it is more convenient to replace. In the prior art, it is not only necessary to replace The upper plate or the lower plate and the blades only need to be replaced in the prior art, which increases the ease of replacement.
  • the present invention has the following main beneficial effects: higher assembly efficiency, stronger versatility of the upper plate and the bottom plate, more convenient assembly, and lower product cost.

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

Abstract

一种用于风机式燃气热水器中的叶轮，具有上板(1)、叶片(2)、底板(3)、两个第一固定部件(4)、两个第二固定部件(5)；叶片主体(21)为长方体或扇环柱体形状；在组装状态时，上板下表面(11)向下、叶片(2)放置在上板卡合槽(14)内，一个第一固定部件(4)置入第四固定槽(252)及第二斜槽(132)内将上板(1)与叶片(2)固定住，一个第二固定部件(5)置入第三固定槽(242)及第一斜槽(131)内将上板(1)与叶片(2)进一步固定住，底板上表面(31)向上、叶片(2)放置在底板卡合槽(34)内，另一个第一固定部件(4)置入第二固定槽(232)及第二斜槽(332)内并将底板(3)与叶片(2)固定住，另一个第二固定部件(5)置入第一固定槽(222)及第一斜槽(331)内并将底板(3)与叶片(2)进一步固定住。所述叶轮具有以下主要有益效果：组装效率更高、上板及底板通用性更强，组装更方便，成本更低。

Description

一种用于风机式燃气热水器中的叶轮 技术领域
本发明属于燃气热水器配件技术领域，尤其是涉及一种用于风机式燃气热水器中的叶轮。
 背景技术
目前，离心式风轮中叶片多采用正投影面为矩形的形状，风轮高速转动时，叶片所形成的区域也为矩形区域，风由负压区吸入后形成涡流，与叶片相切时阻力大，噪音高。虽然已有设计将叶片设为弧形弯曲结构，并顺应气流甩出时的方向设置，以减少切风时的阻力，但远远达不到预期的效果。
请见图1及CN205154741U公开了一种燃气热水器风机的叶轮，包括底板1、上板3及环形分布在底板1和上板3之间的若干叶片2。所述底板1的中部设有可套入马达转轴的中心孔4。每一叶片2均包括与上板3接触的上边缘21、与底板1接触的下边缘22及连接上边缘21和下边缘22的侧边缘，所述侧边缘包括靠近中心孔4的第一侧边23及与第一侧边23相对的远离中心孔4的第二侧边24。所述上边缘21向下设有切口210。切口210具有底部边缘211，第一侧边23具有顶端231，且第一侧边23的顶端231低于切口210的底部边缘211，从而可降低紊流强度，提高气体流动的平稳性，从而降低风机的噪音。
 技术问题
然而，现有技术中的叶轮，底板的周缘附近具有两圈孔、上板的周缘附近具有一圈孔，叶片的上端穿过上板的周缘的孔且在上面斜向固定；叶片的上端穿过底板的周缘的孔且在底板上呈两排斜向固定；现有技术中的叶轮主要存在以下缺陷：（1）上板的周缘的一周孔，制造麻烦；叶片穿越及固定速度慢、效率低；（2）底板的周缘的二周孔，制造麻烦；叶片穿越及固定速度慢、效率低；(3) 上板、底板不能通用，不能混用，批量供货时，采购、储存麻烦；（4）由于制造速度慢、效率低，故成本高、售价高，很不经济。为此，行业内希望出现比较通用的上板及底板，并使固定速度更加、效率更高、成本更低。
 技术解决方案
为了解决上述问题，本发明的目的是揭示一种用于风机式燃气热水器中的叶轮，它是采用以下技术方案实现的。
一种用于风机式燃气热水器中的叶轮，具有上板、叶片、底板、两个第一部定部件、两个第二部定部件；其特征在于：所述上板的中央具有上下贯通的上板中心孔，上板下表面的周缘上具有向上及向上板中央伸出的多个上板卡合条，相邻的上板卡合条之间具有上板卡合槽，每个上板卡合槽是不贯穿出上板侧面的，上板卡合条上具有第一斜槽及第二斜槽，第一斜槽更靠近上板侧面，所有的第一斜槽的底部在同一圆周上，所有的第二斜槽的底部在同一圆周上；所述底板的中央具有上下贯通的底板中心孔，底板上表面的周缘上具有向上及向底板中央伸出的多个底板卡合条，相邻的底板卡合条之间具有底板卡合槽，每个上底板卡合槽是不贯穿出底板侧面的，底板卡合条上具有第三斜槽及第四斜槽，第三斜槽更靠近底板侧面，所有的第三斜槽的底部在同一圆周上，所有的第四斜槽的底部在同一圆周上；所述叶片具有叶片主体，叶片主体下方具有第一凹槽和第二凹槽，第一凹槽和第二凹槽之间具有被叶片主体所隔开，第一凹槽的左侧壁上具有向上倾斜的第一斜条，第一斜条与第一凹槽的左侧壁之间形成第一固定槽，第二凹槽的左侧壁上具有向上倾斜的第二斜条，第二斜条与第二凹槽的左侧壁之间形成第二固定槽，叶片主体上方具有第三凹槽和第四凹槽，第三凹槽和第四凹槽之间具有被叶片主体所隔开，第三凹槽的左侧壁上具有向下倾斜的第三斜条，第三斜条与第三凹槽的左侧壁之间形成第三固定槽，第四凹槽的左侧壁上具有向下倾斜的第四斜条，第四斜条与第四凹槽的左侧壁之间形成第四固定槽，所有的第一固定槽的底部在同一圆周上，所有的第二固定槽的底部在同一圆周上，所有的第三固定槽的顶部在同一圆周上，所有的第四固定槽的顶部在同一圆周上；所述燃气热水器风机用叶轮在组装状态时，上板下表面向下、叶片放置在上板卡合槽内，一个第一固定部件置入第四固定槽及第二斜槽内将上板与叶片固定住，一个第二固定部件置入第三固定槽及第一斜槽内将上板与叶片进一步固定住，底板上表面向上、叶片放置在底板卡合槽内，另一个第一固定部件置入第二固定槽及第二斜槽内并将底板与叶片固定住，另一个第二固定部件置入第一固定槽及第一斜槽内并将底板与叶片进一步固定住。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片主体为长方体形状或扇环柱体形状。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片是一体形成的。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板是一体形成的。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述底板是一体形成的。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第一固定部件是封闭的环状结构。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第二固定部件是封闭的环状结构。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第一固定部件及第二固定部件的材料都是塑料或橡胶。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片的材料是塑料或钢或铁或陶瓷。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板和底板可以是相同的结构与形状。
上述所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板和底板的材料都可以是塑料或钢或铁。
 有益效果
本发明具有以下主要有益效果：组装效率更高、上板及底板通用性更强，组装更方便，产品的成本更低。
 附图说明
图1为现有技术中的叶轮的立体结构示意图。
图2为本申请中的上板在背向朝上后的立体结构示意图。
图3为本申请中的叶片的一种实施方式的立体结构示意图。
图4为图3放大的主视图。
图5为本申请中的底板的立体结构示意图。
图6为本申请中使用的固定部件的示意图。
图7为本申请中的叶片的另一种实施方式的立体结构示意图。
图8为图7放大的俯视图。
为了使所在技术领域人员能更准确、清楚地理解及实施本申请，下面结合说明书附图对于附图标记作进一步说明，图中：1—上板、11—上板下表面、12—上板中心孔、13—上板卡合条、14—上板卡合槽、15—上板侧面、131—第一斜槽、132—第二斜槽、2—叶片、21—叶片主体、22—第一凹槽、23—第二凹槽、24—第三凹槽、25—第四凹槽、221—第一斜条、222—第一固定槽、231—第二斜条、232—第二固定槽、241—第三斜条、242—第三固定槽、251—第四斜条、252—第四固定槽、3—底板、31—底板上表面、32—底板中心孔、33—底板卡合条、34—底板卡合槽、35—底板侧面、331—第三斜槽、332—第四斜槽、4—第一固定部件、5—第二固定部件。
 本发明的最佳实施方式
实施实例1，请见图2至图6，一种用于风机式燃气热水器中的叶轮，具有上板1、叶片2、底板3、两个第一部定部件4、两个第二部定部件5；其特征在于：所述上板1的中央具有上下贯通的上板中心孔12，上板下表面11的周缘上具有向上及向上板中央伸出的多个上板卡合条13，相邻的上板卡合条13之间具有上板卡合槽14，每个上板卡合槽14是不贯穿出上板侧面15的，上板卡合条13上具有第一斜槽131及第二斜槽132，第一斜槽131更靠近上板侧面15，所有的第一斜槽131的底部在同一圆周上，所有的第二斜槽132的底部在同一圆周上；所述底板3的中央具有上下贯通的底板中心孔32，底板上表面31的周缘上具有向上及向底板中央伸出的多个底板卡合条33，相邻的底板卡合条33之间具有底板卡合槽34，每个上底板卡合槽34是不贯穿出底板侧面355的，底板卡合条33上具有第三斜槽331及第四斜槽332，第三斜槽331更靠近底板侧面35，所有的第三斜槽331的底部在同一圆周上，所有的第四斜槽332的底部在同一圆周上；所述叶片2具有叶片主体21，叶片主体为长方体形状，叶片主体下方具有第一凹槽22和第二凹槽23，第一凹槽和第二凹槽之间具有被叶片主体所隔开，第一凹槽的左侧壁上具有向上倾斜的第一斜条221，第一斜条与第一凹槽的左侧壁之间形成第一固定槽222，第二凹槽的左侧壁上具有向上倾斜的第二斜条231，第二斜条与第二凹槽的左侧壁之间形成第二固定槽232，叶片主体上方具有第三凹槽24和第四凹槽25，第三凹槽和第四凹槽之间具有被叶片主体所隔开，第三凹槽的左侧壁上具有向下倾斜的第三斜条241，第三斜条与第三凹槽的左侧壁之间形成第三固定槽242，第四凹槽的左侧壁上具有向下倾斜的第四斜条251，第四斜条与第四凹槽的左侧壁之间形成第四固定槽252，所有的第一固定槽222的底部在同一圆周上，所有的第二固定槽232的底部在同一圆周上，所有的第三固定槽242的顶部在同一圆周上，所有的第四固定槽252的顶部在同一圆周上；所述燃气热水器风机用叶轮在组装状态时，上板下表面11向下、叶片2放置在上板卡合槽14内，一个第一固定部件4置入第四固定槽252及第二斜槽132内将上板1与叶片2固定住，一个第二固定部件5置入第三固定槽242及第一斜槽131内将上板1与叶片2进一步固定住，底板上表面31向上、叶片2放置在底板卡合槽34内，另一个第一固定部件4置入第二固定槽232及第二斜槽332内并将底板3与叶片2固定住，另一个第二固定部件5置入第一固定槽222及第一斜槽331内并将底板3与叶片2进一步固定住。
 具体实施方式
实施实例2，请见图7和图8，并参考图2到图6，一种用于风机式燃气热水器中的叶轮，基本同实施实例1，不同之处在于所述叶片主体为扇环柱体形状；本实施实例使得叶轮刮风能力更强、使风阻力更小。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片是一体形成的。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板是一体形成的。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述底板是一体形成的。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第一固定部件是封闭的环状结构。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第二固定部件是封闭的环状结构。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第一固定部件及第二固定部件的材料都是塑料或橡胶。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片的材料是塑料或钢或铁。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板和底板可以是相同的结构与形状。
上述任一实施实例所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板和底板的材料都可以是塑料或钢或铁。
本发明中，上板中心孔及底板中心孔用于轴过电机的机轴。本发明中，组装时，可以先将固定部件嵌在第一至第四固定槽，再将叶片卡入即可，由于固定部件的高弹力，可以使叶片与上板及底板相固定，而且，相比现有技术中叶片要穿过上板及底板，并在外面熔化或弯折固定来说，固定方式极大地简化，极大地节省了时间、提高了速度及效率；另外，上板及底板外周缘不再需要打一圈及两圈孔，而且上板及底板可通用，可以混用，降低了采购、保存的难度；而且，在叶片损坏时，更换更加方便，现有技术中不仅要更换上板或下板及叶片，现有技术中只需更换叶片，增加了更换的简易度。
因此，本发明具有以下主要有益效果：组装效率更高、上板及底板通用性更强，组装更方便，产品的成本更低。
 工业实用性
本申请已实施，具有工业实用性。上述的实施例仅为本发明的优选技术方案，而不应视为对于本发明的限制。本发明的保护范围应以权利要求记载的技术方案，包括权利要求记载的技术方案中技术特征的等同替换方案为保护范围。即在此范围内的等同替换改进，也在本发明的保护范围之内。

Claims (10)

  1. 一种用于风机式燃气热水器中的叶轮，具有上板（1）、叶片（2）、底板（3）、两个第一部定部件（4）、两个第二部定部件（5）；其特征在于：所述上板（1）的中央具有上下贯通的上板中心孔（12），上板下表面（11）的周缘上具有向上及向上板中央伸出的多个上板卡合条（13），相邻的上板卡合条（13）之间具有上板卡合槽（14），每个上板卡合槽（14）是不贯穿出上板侧面（15）的，上板卡合条（13）上具有第一斜槽（131）及第二斜槽（132），第一斜槽（131）更靠近上板侧面（15），所有的第一斜槽（131）的底部在同一圆周上，所有的第二斜槽（132）的底部在同一圆周上；所述底板（3）的中央具有上下贯通的底板中心孔（32），底板上表面（31）的周缘上具有向上及向底板中央伸出的多个底板卡合条（33），相邻的底板卡合条（33）之间具有底板卡合槽（34），每个上底板卡合槽（34）是不贯穿出底板侧面（355）的，底板卡合条（33）上具有第三斜槽（331）及第四斜槽（332），第三斜槽（331）更靠近底板侧面（35），所有的第三斜槽（331）的底部在同一圆周上，所有的第四斜槽（332）的底部在同一圆周上；所述叶片（2）具有叶片主体（21），叶片主体下方具有第一凹槽（22）和第二凹槽（23），第一凹槽和第二凹槽之间具有被叶片主体所隔开，第一凹槽的左侧壁上具有向上倾斜的第一斜条（221），第一斜条与第一凹槽的左侧壁之间形成第一固定槽（222），第二凹槽的左侧壁上具有向上倾斜的第二斜条（231），第二斜条与第二凹槽的左侧壁之间形成第二固定槽（232），叶片主体上方具有第三凹槽（24）和第四凹槽（25），第三凹槽和第四凹槽之间具有被叶片主体所隔开，第三凹槽的左侧壁上具有向下倾斜的第三斜条（241），第三斜条与第三凹槽的左侧壁之间形成第三固定槽（242），第四凹槽的左侧壁上具有向下倾斜的第四斜条（251），第四斜条与第四凹槽的左侧壁之间形成第四固定槽（252），所有的第一固定槽（222）的底部在同一圆周上，所有的第二固定槽（232）的底部在同一圆周上，所有的第三固定槽（242）的顶部在同一圆周上，所有的第四固定槽（252）的顶部在同一圆周上；所述燃气热水器风机用叶轮在组装状态时，上板下表面（11）向下、叶片（2）放置在上板卡合槽（14）内，一个第一固定部件（4）置入第四固定槽（252）及第二斜槽（132）内将上板（1）与叶片（2）固定住，一个第二固定部件（5）置入第三固定槽（242）及第一斜槽（131）内将上板（1）与叶片（2）进一步固定住，底板上表面（31）向上、叶片（2）放置在底板卡合槽（34）内，另一个第一固定部件（4）置入第二固定槽（232）及第二斜槽（332）内并将底板（3）与叶片（2）固定住，另一个第二固定部件（5）置入第一固定槽（222）及第一斜槽（331）内并将底板（3）与叶片（2）进一步固定住。
  2. 根据权利要求1所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片主体为长方体形状或扇环柱体形状。
  3. 根据权利要求1或权利要求2所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片是一体形成的。
  4. 根据权利要求1或权利要求2所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板是一体形成的。
  5. 根据权利要求1或权利要求2所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述底板是一体形成的。
  6. 根据权利要求5所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第一固定部件是封闭的环状结构。
  7. 根据权利要求6所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第二固定部件是封闭的环状结构。
  8. 根据权利要求7所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述第一固定部件及第二固定部件的材料都是塑料。
  9. 根据权利要求8所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述叶片的材料是塑料或钢或陶瓷。
  10. 根据权利要求4至权利要求9任意一项所述的一种用于风机式燃气热水器中的叶轮，其特征在于所述上板和底板的材料都是塑料或钢。
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