CN2813952Y - Centrifugal fan case - Google Patents
Centrifugal fan case Download PDFInfo
- Publication number
- CN2813952Y CN2813952Y CN 200520074612 CN200520074612U CN2813952Y CN 2813952 Y CN2813952 Y CN 2813952Y CN 200520074612 CN200520074612 CN 200520074612 CN 200520074612 U CN200520074612 U CN 200520074612U CN 2813952 Y CN2813952 Y CN 2813952Y
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- CN
- China
- Prior art keywords
- plate
- cover plate
- base plate
- bent plate
- scroll casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a centrifugal fan casing which is mainly composed of a bottom plate, a spiral casing bent plate and a cover plate both positioned on one side of the bottom plate, wherein the bottom plate is provided with an air inlet, and an end opening of the bent plate, the bottom plate and the cover plate enclose an air outlet. The utility model is characterized in that the bottom plate and the spiral casing bent plate have the structure formed by integral injection moulding. A clamping groove is arranged on the circumference of the cover plate, and the shape of the clamping groove matches the shape of the spiral casing bent plate. The cover plate and the spiral casing bent plate are clamped and positioned and are fixedly connected. The utility model has the advantages of smooth and beautiful surfaces, low noise, convenient manufacture, time saving and force saving.
Description
Technical field
The utility model relates to a kind of air transporting arrangement, is specifically related to a kind of housing that is mainly used in the centrifugal blower of conveying gas in the various cleaning equipments such as comprising air purification.
Background technique
Centrifugal blower is a kind of machinery of conveying gas, can make factory, mine, tunnel, subway, large-scale civil building ventilation usefulness, and can with various forms of air conditioners, the supporting use of purifier.
Existing centrifugal blower generally comprises motor, impeller and housing; housing is provided with intake grill and exhaust outlet; described motor is fixed in the housing; impeller is connected with motor output shaft; described housing (claiming spiral case again) is made by iron sheet; comprise base plate, bent plate and cover plate composition; have intake grill on the described base plate; the port of bent plate and base plate, cover plate are enclosed exhaust outlet; during installation; motor and impeller are connected with nut thread on being welded in base plate by installation and screw, fix with spot-welded on respectively between bent plate and base plate, cover plate and bent plate, apply the paint protective layer again.
The housing of said structure is made up of three parts, and is fixed by spot welding, thereby causes following some deficiency: 1. because housing is fixing by three parts welding, make take a lot of work, time-consuming, machining rear case simultaneously can not dismantle, the inconvenience when causing maintenance; 2. spot welding will stay rugged solder joint at surface of shell, influence the outward appearance of housing; 3. housing is made with iron sheet, is subjected to the influence of motor vibrations and gas shock, and the noise of generation is bigger; 4. the surface of iron sheet housing need apply the paint protective layer, makes working process more become complicated.
Summary of the invention
The utility model purpose provides a kind of easy to assembly, and is specious, the centrifugal blower housing that noise is less.
For achieving the above object, the technical solution adopted in the utility model is: a kind of centrifugal blower housing, it mainly is made of base plate and the scroll casing shape bent plate, the cover plate that are positioned at base plate one side, described base plate is provided with intake grill, described bent plate port and base plate, cover plate surround the formation exhaust outlet, and described base plate and scroll casing shape bent plate are the integrated through injection molding shaping structure, and the cover plate periphery is provided with the draw-in groove with scroll casing shape bent plate form fit, cover plate engages the location with the scroll casing shape bent plate, and fixedly connected.
In the technique scheme, " cover plate engages the location with the scroll casing shape bent plate, and fixedly connected ", described being fixedly connected as, on the top of cover plate periphery and scroll casing shape bent plate, correspondence is provided with screw respectively, and both connect by screw.
In the technique scheme, corresponding to described exhaust outlet place, cover plate and bent plate are provided with the flange edge that is bent to form laterally, are convenient at fixedly connected wind pipe in exhaust outlet place or supporting equipment (as cleaning equipment etc.).
In the technique scheme, on the described base plate, be provided with a plurality of convexes corresponding to the mounting point of motor, control circuit, described convex position vertically offers and the groove that nut cooperates is installed, nut is installed is embedded in the groove, in be provided with the through hole consistent with nut bore.The motor of centrifugal blower and impeller will be fixed in the housing, and the control circuit of blower fan also will be fixed on the base plate simultaneously, thereby can utilize screw to be threaded with its formation by being embedded in the standard nut in the housing convex in advance, and it is very convenient to install, dismantle.
In the technique scheme, described housing is by the compo molding and forming.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1. because housing of the present utility model adopts the compo molding and forming, the spiral case body is connected with screw after engaging with cover plate, substitute the Placement that in the past adopted spot welding, make installation and the maintenance of motor internal from now on more convenient, the rugged weldering vestige of having avoided spot welding to cause simultaneously, smooth surface, attractive in appearance.
2. adopt the compo molding and forming, housing has certain sound absorption qualities, thereby makes the former iron sheet blower fan of noise ratio decline 2-3dB.
Since on base plate the installed position of motor and control circuit integrated convex is set, nut is embedded in it, do not need in the past simultaneously need not paint processing to punching, the nut welding procedure of base plate, make more convenient, save time, laborsaving.
4. at exhaust outlet flange edge is set, is convenient to connect air outlet tube.
5. the whole plastic shaping that adopts, in light weight.
Description of drawings
Accompanying drawing 1 is the utility model embodiment one a structural representation;
Accompanying drawing 2 is the backsight structural representation of Fig. 1;
Accompanying drawing 4 is the partial enlarged drawing of Fig. 3;
Accompanying drawing 5 is the partial enlarged drawing of Fig. 1.
Wherein: [1], base plate; [2], bent plate; [3], cover plate; [4], intake grill; [5], exhaust outlet; [6], draw-in groove; [7], flange edge; [8], convex; [9], through hole; [10], nut is installed.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: referring to accompanying drawing 1 to shown in Figure 5, a kind of centrifugal blower housing, it is by the compo molding and forming, mainly by base plate 1 and be positioned at the scroll casing shape bent plate 2 of base plate 1 one sides, cover plate 3 constitutes, described base plate 1 is provided with intake grill 4, described bent plate 2 ports and base plate 1, cover plate 3 surrounds and constitutes exhaust outlet 5, described base plate 1 is the integrated through injection molding shaping structure with scroll casing shape bent plate 2, corresponding to described exhaust outlet 5 places, cover plate 3 and bent plate 2 are provided with the flange edge 7 that is bent to form laterally, cover plate 3 peripheries are provided with the draw-in groove 6 with scroll casing shape bent plate 2 form fit, and cover plate 3 engages the location with scroll casing shape bent plate 2, and is connected by screw; On the described base plate 1, be provided with a plurality of convexes 8 corresponding to the mounting point of motor, control circuit, described convex 8 position vertically offers and the groove that nut 10 cooperates is installed, and nut 10 is installed is embedded in the groove, and central authorities are provided with the through hole consistent with nut bore 9.
Claims (4)
1. centrifugal blower housing, it mainly is made of base plate [1] and the scroll casing shape bent plate [2], cover plate [3] that are positioned at base plate one side, described base plate [1] is provided with intake grill [4], described bent plate [2] port and base plate [1], cover plate [3] surround and constitute exhaust outlet [5], it is characterized in that: described base plate [1] is the integrated through injection molding shaping structure with scroll casing shape bent plate [2], cover plate [3] periphery is provided with the draw-in groove [6] with scroll casing shape bent plate [2] form fit, cover plate [3] engages the location with scroll casing shape bent plate [2], and fixedly connected.
2. centrifugal blower housing according to claim 1 is characterized in that: locate corresponding to described exhaust outlet [5], cover plate [3] and bent plate [2] are provided with the flange edge [7] that is bent to form laterally.
3. centrifugal blower housing according to claim 1, it is characterized in that: on the described base plate [1], mounting point corresponding to motor, control circuit is provided with a plurality of convexes [8], described convex [8] position vertically offers and the groove that nut [10] cooperates is installed, nut [10] is installed is embedded in the groove, central authorities are provided with the through hole consistent with nut bore [9].
4. centrifugal blower housing according to claim 1 is characterized in that: described housing is by the compo molding and forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074612 CN2813952Y (en) | 2005-08-15 | 2005-08-15 | Centrifugal fan case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074612 CN2813952Y (en) | 2005-08-15 | 2005-08-15 | Centrifugal fan case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2813952Y true CN2813952Y (en) | 2006-09-06 |
Family
ID=36949040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520074612 Expired - Fee Related CN2813952Y (en) | 2005-08-15 | 2005-08-15 | Centrifugal fan case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2813952Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463405A (en) * | 2010-11-10 | 2012-05-23 | 沈阳鼓风机集团股份有限公司 | Production process of centrifugal-compressor welding shell |
| CN102478269A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Spiral case and range hood with same |
| CN102478268A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Spiral case and range hood with same |
| CN102478266A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Volute and manufacturing method thereof and range hood |
| CN103256639A (en) * | 2012-02-16 | 2013-08-21 | 博西华电器（江苏）有限公司 | Range hood |
| CN103410786A (en) * | 2013-08-22 | 2013-11-27 | 重庆江增船舶重工有限公司 | Vapor compression casing of vapor compressor and manufacturing method thereof |
-
2005
- 2005-08-15 CN CN 200520074612 patent/CN2813952Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463405A (en) * | 2010-11-10 | 2012-05-23 | 沈阳鼓风机集团股份有限公司 | Production process of centrifugal-compressor welding shell |
| CN102463405B (en) * | 2010-11-10 | 2013-06-19 | 沈阳鼓风机集团股份有限公司 | Production process of centrifugal-compressor welding shell |
| CN102478269A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Spiral case and range hood with same |
| CN102478268A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Spiral case and range hood with same |
| CN102478266A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Volute and manufacturing method thereof and range hood |
| CN102478269B (en) * | 2010-11-30 | 2016-02-10 | 博西华电器（江苏）有限公司 | Spiral case and be provided with the smoke exhaust ventilator of this kind of spiral case |
| CN102478266B (en) * | 2010-11-30 | 2016-08-17 | 博西华电器（江苏）有限公司 | Spiral case and manufacture method, smoke exhaust ventilator |
| CN102478268B (en) * | 2010-11-30 | 2016-09-28 | 博西华电器（江苏）有限公司 | Spiral case and be provided with the smoke exhaust ventilator of this kind of spiral case |
| CN103256639A (en) * | 2012-02-16 | 2013-08-21 | 博西华电器（江苏）有限公司 | Range hood |
| CN103256639B (en) * | 2012-02-16 | 2017-11-10 | 博西华电器（江苏）有限公司 | Smoke exhaust ventilator |
| CN103410786A (en) * | 2013-08-22 | 2013-11-27 | 重庆江增船舶重工有限公司 | Vapor compression casing of vapor compressor and manufacturing method thereof |
| CN103410786B (en) * | 2013-08-22 | 2016-03-02 | 重庆江增船舶重工有限公司 | A kind of vapour compression machine compressor casing and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20120815 |