CN1044519A

CN1044519A - Cross-flow fan

Info

Publication number: CN1044519A
Application number: CN 89108813
Authority: CN
Inventors: 赤石峰一; 荻野宽
Original assignee: AKAISHI METAL INDUSTRIES Co Ltd
Current assignee: AKAISHI METAL INDUSTRIES Co Ltd
Priority date: 1989-01-26
Filing date: 1989-11-23
Publication date: 1990-08-08
Also published as: JPH02199297A

Abstract

Cross-flow fan, on the circular metal plate that many blades is assemblied in blade location, both sides usefulness and in the formation cylindrical rotor with multiple-blades formula ventilator, use long and short two kind blade, utilize both sides sheet metal and interfix plate to constitute an integral cylindrical ventilator of thin space formula and two kinds of patterns of wide space type in this blade.

Description

Cross-flow fan

Cross-flow fan of the present invention relates to the development of the cylindrical rotor with multiple-blades ventilator that can extensively be equipped on duplicating machine, air conditioner and office machine inside.

Air stream in this air circulation ventilator that formerly has, because make the air of emitting form a certain amount of air-supply from tapping hole from the suction port inhaled air, so, for example, expect different air outputs, the ventilator that will utilize several big or small types to have nothing in common with each other, therefore, use machine according to ventilator limits air-supply etc., and is not only extremely uneconomical, and in the unrealistic property of all bringing aspect electric power or the volume in the use.

According to the above, the present invention is according to the internal structure of using machine, can be in the scope of motor output blows respectively according to what of air output with a ventilator, and obtains not having the ventilator reasonable in design of invalid air-supply.

According to the above, embodiments of the invention are described.

Accompanying drawing is the figure of the embodiment of the invention, wherein:

Fig. 1 is the front view of doubly-linked formula ventilator,

Fig. 2 is the sectional view of Fig. 1 along the a-a line of vision, the relation of expression blade and positioning plate,

Fig. 3 is the right side view of Fig. 1, the relation of expression biside plate and blade,

Fig. 4 is the front view of another example of Fig. 1, and these ventilator central authorities are the thin space blade, and its both sides are wide spaced blades, represent shell with dotted line, sucks air from the arrow top, deflates from the below arrow.

Symbolic representation among the figure: (1), (1) ' ... deviated splitter vane

(2) ... the blade positioning plate

(3) ... blade metal positioning plate

A ... wide spaced blades part

B ... the thin space blade-section

Embodiment 1

With reference to Fig. 1, be provided with the blade (1) (1) of two kinds of length ', these blades are assembled into cylindrical shape, wherein, positioning plate among Fig. 2 (2) and support metal plate (3) as left side in Fig. 3 both sides sheet metals (3) (3) have the identical blade assembly building distance to positioning plate, and its blade assembly building distance of left side sheet metal (3) is 1/2 of a right side sheet metal, earlier the linear leaf (1) on left and right sides sheet metal and the interfix plate is inserted in the blade fitting recess that is provided with around the positioning plate of right side sheet metal (with reference to Fig. 3) spacing assembling and two sheet metals (in 1 "); formerly insert short blade in the bosom positioning plate (2) of assembling and the linear leaf between the left side sheet metal (3) later; rivet vanes fixed in positioning plate by roll-type; around the sheet metal, thereby constituted the cylindrical shape ventilator.

Embodiment 2

In above embodiment, sheet metal (3) is 2 to 1 with the blade assembling ratio of positioning plate (2), one side's blade assembly building is apart from the spacing that is 2 times relatively, be that the number of blade is 2 times, but and be not limited to this proportionate relationship, the required airflow to deal with suitably increases and decreases the number of blade and constitutes the ventilator of an integral body.(figure omits)

Embodiment 3

Whole ventilator is divided into two-part in Fig. 1, the number of blade also is to be assemblied on sheet metal and the positioning plate with 1 to 2 ratio, and among Fig. 4 whole ventilator is divided into three parts, both sides are wide spacing B, the centre is thin space A, in fact can be not limited to and be divided into three parts or five parts, and also can be not limited to the number of blade, adapt to and use machine institute's required airflow and make.

The present invention is as mentioned above owing in a ventilation body, rely on the metallic plate of both sides to reach Can assemble the cause of long and short two kind blade (1), (1 ') between the interfix plate, so can obtain at an easy rate the whole ventilation blower with thin space and two kinds of patterns of wide spaced blades, and, its purposes and the use machine that relies on ventilation blower provide what occasion of necessary air quantity consistent, owing to originally will use the ventilation blower of two sizes, so but ventilation blower of the present invention only just can obtain identical effect with a ventilation blower is very easily. Also have, in the accompanying drawings, Fig. 1 shows two kinds of patterns of width spacing, Fig. 4 shows three of two wide spacings, a close spaced blades as its application and connects the formula ventilation blowers in addition, and this is being quite effective aspect inner air-supply with needing to use a plurality of or more different air quantity of large-scale duplicator of modern times, office machine.

Claims

1, cross-flow fan, it is characterized in that: on the circular metal plate that many blades is assemblied in blade location, both sides usefulness and in the formation cylindrical rotor with multiple-blades formula ventilator, use long and short two kind blade, utilize both sides sheet metal and interfix plate to constitute an integral cylindrical ventilator of thin space formula and two kinds of patterns of wide space type in this blade.