阅读说明：本技术 高效大风量的两侧进风叶轮风机 (High-efficiency large-air-volume fan with air inlet impellers on two sides ) 是由 常宇飞 徐再霞 陶冶 曹永佳 于 2020-04-19 设计创作，主要内容包括：本发明涉及一种高效大风量的两侧进风叶轮风机,叶轮由多个叶片以叶轮中心盘中心线为轴线、绕叶轮中心盘圆周均布组成,叶片的两端分别连接叶轮外盘和叶轮中心盘,叶轮中心盘中心线通过蜗壳壳体下部圆柱腔开口中心,左叶轮外盘、叶轮和叶轮中心盘组成左侧叶轮体,右叶轮外盘、叶轮和叶轮中心盘组成右侧叶轮体,左、右侧叶轮体共用叶轮中心盘,叶轮中心盘中心设置连接轮毂、中心外周均布镂空孔,连接轮毂上穿接驱动轴,驱动轴外接设置在蜗壳壳体下部圆柱腔左侧或右侧端面上的电机。该风机能兼顾体积、重量以及振动噪音、通风风量均衡。(The invention relates to a high-efficiency large-air-volume impeller fan with air intake from two sides, wherein an impeller is formed by uniformly distributing a plurality of blades around the circumference of an impeller central disc by taking the central line of the impeller central disc as an axis, two ends of each blade are respectively connected with an impeller outer disc and the impeller central disc, the central line of the impeller central disc passes through the opening center of a cylindrical cavity at the lower part of a volute casing, a left impeller outer disc, an impeller and the impeller central disc form a left impeller body, a right impeller outer disc, the impeller and the impeller central disc form a right impeller body, the left impeller body and the right impeller body share the impeller central disc, the center of the impeller central disc is provided with a connecting hub, hollow holes are uniformly distributed at the periphery of the center, the connecting hub is connected with a driving shaft in a penetrating way. The fan can balance volume, weight, vibration noise and ventilation air quantity.)

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.

Technical Field

The invention relates to a fan, in particular to a high-efficiency large-air-volume fan with two side air inlet impellers.

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 technical scheme adopted by the invention is as follows: 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.

According to the invention, two back-to-back impellers are connected to the impeller center disc together, the impeller center disc is communicated through the hollow holes uniformly distributed on the circumference of the impeller center disc, when the impeller on the motor side is blocked by the motor to supply air, air can be smoothly supplied from the other side, the defect of unbalance on the two sides is overcome, the air quantity of the fan is integrally increased, the fan efficiency is higher, the miniaturization and stable service performance of the fan can be considered, and the good vibration-proof and noise-reduction effects can be realized.

Drawings

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

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

FIG. 3 is a schematic view of the assembly of the impeller center disk, the impeller outer disk and the impeller of the present invention;

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

fig. 5 is a schematic perspective view 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.