CN202789726U - Flow guide ring for fan - Google Patents

Abstract

The utility model relates to a flow guide device and provides a flow guide ring for a fan. The flow guide ring comprises a flow guide enclosing plate ring and a positioning plate ring, wherein the flow guide enclosing plate ring is formed by cutting a metal plate prior to integrated curling and butting, and the positioning plate ring is annularly arranged outside the flow guide enclosing plate ring and perpendicular to the same. The flow guide ring for the fan is formed by curling and butting the metal plate so that a traditional die processing mode is changed, and raw materials are saved while cost is lower.

Description

The blower fan baffle liner

Technical field

The utility model relates to flow guide device, more particularly, relates to a kind of blower fan baffle liner.

Background technique

Existing blower fan baffle liner is generally by the mould punching manufacturing.Before the stamped, need to cut masterbatch according to baffle liner maximum specification size requirement, masterbatch is circular ring-type of square, interior week of periphery; Perhaps circular, the interior all circles of periphery is circular.In making the masterbatch process, as waste material, cause waste behind the material stamping-out in the masterbatch among the Zhou Yuanhuan; Periphery need to be reserved the flanging material in the baffle liner impact briquetting process simultaneously.As shown in Figure 1 and Figure 2, existing a kind of blower fan baffle liner, it comprise flow skirt 100 ' and be located in the positioning plate 200 of flow skirt 100 ' outer '.The manufacture process of this blower fan baffle liner is: be positioning plate 200 ' peripheral radius R2 according to the baffle liner design specification, flow skirt 100 ' inside radius R1 reserves flanging material Δ R, i.e. masterbatch periphery R21=R2+ Δ R; Flow skirt 100 ' for mould punching distortion forms, so all radius Rs 11 will be reserved baffle liner depth delta R11 in the masterbatch, i.e. all R11=R1-Δ R11 in the masterbatch.Masterbatch as shown in Figure 2 launches planimetric map, and masterbatch is placed the mould that designs, and has just made baffle liner as shown in Figure 1 through punching press.In the manufacture process of masterbatch, R11 has become waste material with interior material after making processing, and flanging material Δ R causes the actual materials of masterbatch to exceed effective dimensions, and these all cause raw-material waste, and it is high to have improved manufacture cost.

The model utility content

Technical problem to be solved in the utility model is to overcome the defective of prior art, provides a kind of simple in structure, be easy to make, and the low blower fan baffle liner of cost.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of blower fan baffle liner is provided, comprises the flow skirt circle that is formed by the curling docking of one after the sheet metal cutting and be located on the outer and perpendicular positioning plate circle of described flow skirt circle.

Further, described flow skirt circle inward flange is provided with locating groove, and the two ends of described flow skirt circle are welded and fixed in described locating groove place.

Particularly, the cross section of described locating groove is rectangular.

In the utility model, the blower fan baffle liner adopts the curling docking of sheet metal to form, and changes the traditional moulds processing mode, has saved raw material, and cost is lower.

Description of drawings

Fig. 1 is a kind of blower fan baffle liner of the prior art;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is the structural representation of blower fan baffle liner one preferred embodiment that provides of the utility model;

Fig. 4 is A place enlarged view among Fig. 3;

Fig. 5 is the plan view of Fig. 3;

Fig. 6 is the metal sheeting design schematic representation before the blower fan baffle liner is made among the utility model embodiment;

Fig. 7 is B place enlarged view among Fig. 6.

Embodiment

In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

With reference to Fig. 3 to Fig. 5, the blower fan baffle liner that the utility model provides comprises the flow skirt circle 110 that is formed by the curling docking of one after a sheet metal 100 cuttings and is located on flow skirt circle 110 outer and perpendicular positioning plate circles 120.In the utility model, the blower fan baffle liner adopts sheet metal 100 curling docking to form, and changes the traditional moulds processing mode, has saved raw material, and cost is lower.

In the present embodiment, the inward flange of flow skirt circle 110 is provided with locating groove 111 sheet metals 100 and is welded and fixed in locating groove 111 places when bending.In the present embodiment, locating groove 111 cross sections are rectangle, and locating groove 111 is set, and are convenient to that flow skirt circle 110 is carried out effective wielding neck and fix.

In the utility model, definition flow skirt circle radius is R1, and the positioning plate peripheral radius is R2, and then theoretical flow skirt circle 110 length are 2 π R1, and theoretical positioning plate circle 120 length are 2 π R2.In the present embodiment, actual flow skirt circle length is 1.0367*2 π R1, and actual positioning plate circle length is 2 π R2.When making the blower fan baffle liner, with the sheet metal 100 of this size cutting as shown in Fig. 6, Fig. 7, it comprises flow skirt motherboard 130 and positioning plate motherboard 140.As shown in FIG., flow skirt motherboard 130 length L 1=1.0367*2 π R1, positioning plate motherboard 140 length L 2=2 π R2, locating groove 111 is Li=2 π R1 to the Edge Distance of sheet metal 100 sides far away; Then along x=Δ R11 flow skirt motherboard 130 and positioning plate motherboard 140 are converted into mutual vertical configuration, then flow skirt motherboard 130 and positioning plate motherboard 140 are bent and form flow skirt circle 110 and positioning plate circle 120, and flow skirt circle 110 finally forms blower fan baffle liner as shown in Figure 3 in locating groove 111 place's positioning weldings.Because locating groove 111 has certain distance apart from flow skirt motherboard 130 two ends, when the bending docking, form scrap (bridge) 150, guarantee the reliability that connects by scrap (bridge) 150 welding.

Below only be preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (3)

1. a blower fan baffle liner is characterized in that: comprise the flow skirt circle that is formed by curling docking after the sheet metal cutting and be located on the outer and perpendicular positioning plate circle of described flow skirt circle.

2. blower fan baffle liner as claimed in claim 1, it is characterized in that: described flow skirt circle inward flange is provided with locating groove, and the two ends of described flow skirt circle are welded and fixed in described locating groove place.

3. blower fan baffle liner as claimed in claim 2, it is characterized in that: the cross section of described locating groove is rectangular.

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