CN212250523U

CN212250523U - High-efficiency large-air-volume fan with air inlet impellers on two sides

Info

Publication number: CN212250523U
Application number: CN202020582346.8U
Authority: CN
Inventors: 常宇飞; 徐再霞; 陶冶; 曹永佳
Original assignee: Jiangsu Josun Technology Co ltd
Current assignee: Jiangsu Josun Technology Co ltd
Priority date: 2020-04-19
Filing date: 2020-04-19
Publication date: 2020-12-29
Anticipated expiration: 2030-04-19

Abstract

The utility model relates to a both sides air inlet impeller fan of high-efficient big amount of wind, the impeller is the axis by a plurality of blades with impeller center disk central line, constitute around impeller center disk circumference equipartition, impeller outer dish and impeller center disk are connected respectively to the both ends of blade, impeller center disk central line passes through spiral case casing lower part cylinder chamber opening center, left side impeller outer dish, the left side impeller body is constituteed to impeller and impeller center disk, right side impeller outer dish, the right side impeller body is constituteed to impeller and impeller center disk, a left side, right side impeller body sharing impeller center disk, impeller center disk center sets up connection wheel hub, center periphery equipartition fretwork hole, connect the last cross-under drive shaft of wheel hub, the external motor that sets up on spiral case casing lower part cylinder chamber left side or right side terminal surface of drive shaft. The fan can balance volume, weight, vibration noise and ventilation air quantity.

Description

High-efficiency large-air-volume fan with air inlet impellers on two sides

Technical Field

The utility model relates to a fan, the both sides air inlet impeller fan of the big amount of wind of a high-efficient specifically says so.

Background

The two-side air inlet impeller which is newly raised in the market at present is widely applied to the market of wind power coolers due to the unique installation form and relatively low manufacturing cost. But has the advantages and the disadvantages: the conventional air inlet impellers with two sides are generally formed by assembling two impellers back to back, one side of the two assembled impellers is only provided with an air inlet, the other side of the two assembled impellers needs to leave a larger inner space for installing a motor, and the conventional double impellers have the problem that the ventilation quantity of one side of the two back-to-back impellers is large and the ventilation quantity of one side of the two back-to-back impellers is small, so that the overall ventilation of the double-fan impeller is unbalanced, and the overall performance of the impeller is influenced. To compensate for this drawback, the dual impellers generally increase their size to increase the air flow, and the risks of vibration, noise, etc. are increased accordingly.

Disclosure of Invention

The utility model provides a can compromise volume, weight and vibration noise, the balanced high-efficient big amount of wind's of ventilation both sides air inlet impeller fan.

The utility model adopts the technical proposal that: the utility model provides a both sides air inlet impeller fan of high-efficient big amount of wind which characterized in that: the spiral case comprises a spiral case shell, an impeller center disc, an impeller outer disc, an impeller and a motor, wherein the spiral case shell comprises a lower cylindrical cavity and an upper derivation cavity which are mutually communicated, two ends of the lower cylindrical cavity are opened, the tail end of the upper derivation cavity is opened, a left impeller outer disc and a right impeller outer disc are respectively and coaxially positioned at the left side and the right side of the impeller center disc, the impeller is formed by uniformly distributing a plurality of blades around the circumference of the impeller center disc by taking the center line of the impeller center disc as an axis, two ends of the blades are respectively connected with the impeller outer disc and the impeller center disc, the center line of the impeller center disc passes through the center of the lower cylindrical cavity opening of the spiral case shell, the left impeller outer disc, the impeller and the impeller center disc form a left impeller body, the right impeller outer disc, the impeller and the impeller center disc form a right impeller body, the left impeller body and the right impeller body share the impeller center, the driving shaft is externally connected with a motor arranged on the left side or the right side end face of a cylindrical cavity at the lower part of the volute casing.

Further, the blade section is arc-shaped.

Further, the outer disc of the impeller is connected to the opening of the cylindrical cavity.

Furthermore, the two ends of each blade are provided with clamping heads, and bayonets corresponding to the clamping heads are uniformly distributed on the circumferences of the impeller central disc and the impeller outer disc.

The utility model discloses with two impeller joint jointly on impeller center plate back to back, the impeller center plate link up in the middle of according to the fretwork hole through its upper circumference equipartition, motor side impeller can follow the smooth air supply of opposite side when blockking the air inlet by the motor, compensaties the unbalanced defect in both sides, makes the whole increasement of fan amount of wind, and fan efficiency is higher, and can compromise fan miniaturization, steady performance, can accomplish better antivibration and fall the effect of making an uproar.

Drawings

Fig. 1 is a schematic view of a side view of the three-dimensional structure of the present invention;

fig. 2 is a schematic view of another side of the three-dimensional structure of the present invention;

FIG. 3 is an assembly diagram of the impeller center plate, the impeller outer plate and the impeller of the present invention;

FIG. 4 is a schematic perspective view of FIG. 3;

fig. 5 is a schematic view of the three-dimensional structure of the impeller center plate of the present invention.

In the figure: the spiral case comprises a spiral case shell 1, a lower cylindrical cavity left opening 2, a lower cylindrical cavity right opening 3, an upper derivation cavity opening 4, an impeller center disc 5, a connecting hub 6, a hollow hole 7, blades 8, a left impeller outer disc 9, a right impeller outer disc 10 and a motor 11.

Detailed Description

The following further description is made in conjunction with the accompanying drawings and examples.

FIGS. 1-5 show: a high-efficiency large-air-volume impeller fan with air inlets on two sides comprises a volute casing 1, an impeller center disk 5, blades 8, a left impeller outer disk 9, a right impeller outer disk 10 and a motor 11. The volute casing 1 comprises a lower cylindrical cavity and an upper derivation cavity which are mutually communicated, a left lower cylindrical cavity opening 2 and a right lower cylindrical cavity opening 3 are respectively arranged at the left end and the right end of the lower cylindrical cavity, an opening upper derivation cavity opening 4 is arranged at the tail end of the upper derivation cavity, an impeller central disc 5 is arranged at the central position in the lower cylindrical cavity of the volute casing 1, a center line passes through the left opening center and the right opening center of the lower cylindrical cavity of the volute casing, a connecting hub 6 is arranged at the center of the impeller central disc 5, hollow holes 7 are uniformly distributed on the circumference of the impeller central disc 5 connected with the periphery of the hub, the impeller central disc 5 is connected with a plurality of inner end parts of blades at the two sides of the disc body at the periphery of the hollow holes 7 in a clamping manner through bayonet and chuck structures, the cross sections of the blades are arc-shaped, the plurality of blades at each side form an impeller, and, The right impeller outer disk 10 is respectively formed with a left impeller body and a right impeller body at two sides of the impeller center disk 5, and a motor 11 fixedly arranged on the right end face of the cylindrical cavity at the lower part of the volute casing is externally connected to the right impeller body on the connecting hub of the impeller center disk 5 through a driving shaft.

In the above embodiment, the left impeller outer disk 9 and the right impeller outer disk 10 may be selectively fixed on the left and right openings of the lower cylindrical cavity of the volute casing 1, or fixed on the inner walls of the cylindrical cavity inside the left and right openings of the lower cylindrical cavity of the volute casing 1.

Claims

1. The utility model provides a both sides air inlet impeller fan of high-efficient big amount of wind which characterized in that: the spiral case comprises a spiral case shell, an impeller center disc, an impeller outer disc, an impeller and a motor, wherein the spiral case shell comprises a lower cylindrical cavity and an upper derivation cavity which are mutually communicated, two ends of the lower cylindrical cavity are opened, the tail end of the upper derivation cavity is opened, a left impeller outer disc and a right impeller outer disc are respectively and coaxially positioned at the left side and the right side of the impeller center disc, the impeller is formed by uniformly distributing a plurality of blades around the circumference of the impeller center disc by taking the center line of the impeller center disc as an axis, two ends of the blades are respectively connected with the impeller outer disc and the impeller center disc, the center line of the impeller center disc passes through the center of the lower cylindrical cavity opening of the spiral case shell, the left impeller outer disc, the impeller and the impeller center disc form a left impeller body, the right impeller outer disc, the impeller and the impeller center disc form a right impeller body, the left impeller body and the right impeller body share the impeller center, the driving shaft is externally connected with a motor arranged on the left side or the right side end face of a cylindrical cavity at the lower part of the volute casing.

2. The high-efficiency large-air-volume two-side air inlet impeller fan as claimed in claim 1, which is characterized in that: the cross section of the blade is arc-shaped.

3. The high-efficiency large-air-volume two-side air inlet impeller fan as claimed in claim 1, which is characterized in that: the outer disk of the impeller is connected to the opening of the cylindrical cavity.

4. The high-efficiency large-air-volume two-side air inlet impeller fan as claimed in claim 1 or 2, which is characterized in that: the two ends of each blade are provided with clamping heads, and bayonets corresponding to the clamping heads are uniformly distributed on the circumferences of the impeller center disk and the impeller outer disk.