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turbo fan

A turbofan and blade technology, applied in the field of turbofan, can solve the problems of reducing welding force, loss, and non-uniform welding, etc., and achieve the effect of uniform welding

Active Publication Date: 2021-07-20
NISSHINBO MECHATRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the welding surface of the guard and the fan body is the surface of the guard and the blade tip welding part as the inclined surface of the fan body, the side of the fitting protrusion of the guard and the side of the fitting recess of the fan body. When the shroud and the fan body are welded, both are pressurized along the rotation axis direction (up and down direction) of the turbo fan, but since the blade front end welding part of the fan body is inclined along the blade rotation direction, the blade front end welding part becomes an inclined surface, Therefore, the force loss in the up and down direction, the blade receives the force in the horizontal direction and the welding force is reduced, and the welding may not be uniform

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0118] The turbo fan of Embodiment 1

[0119] Below, combine Figure 1 to Figure 9(a) , FIG. 9(b) describes the configuration and structure of each component of the turbofan according to Embodiment 1 of the present invention. figure 2 It is the completed state of the turbofan 10 of the first embodiment.

[0120] figure 1 It shows the state where the disc-shaped main board 12 which comprises the turbofan 10, and the shroud 13 provided with a blade are attached. The blade-equipped shroud 13 includes a plurality of blade portions 134 coupled to the main board 12 on a shroud 131 forming an outside air intake duct of the fan. Each part is individually extruded using thermoplastic resin. The vane portion 134 of the shroud 13 including the vane is inserted into fitting portions A disposed at a plurality of positions on the peripheral portion of the main plate 12 to be assembled and joined. The parts are joined by ultrasonic welding. In addition, the structure of the blade por...

Embodiment 2

[0135] The turbo fan of Embodiment 2

[0136] Below, combine Figure 10 to Figure 13(a) , FIG. 13(b) describes the configuration and structure of each component of the turbofan 20 according to Embodiment 2 of the present invention. figure 2 This is the completed state of the turbofan 20 of the second embodiment. The appearance is almost the same as the turbofan 10 of the first embodiment.

[0137] Figure 10 It shows the state where the disc-shaped main board 22 provided with the blade which comprises the turbofan 20, and the shroud 23 are attached. The shroud 23 constitutes an outside air intake duct of the fan. The blade-equipped main board 22 has a plurality of blade portions 224 coupled to the shroud 23 . Each part is individually extruded using thermoplastic resin. The blade portion 224 of the main plate 22 provided with the blade is inserted into the fitting portion B (hereinafter referred to as “fitting portion 234 ”, refer to Figure 11 ) to assemble and combin...

Embodiment 3

[0146] the turbofan of embodiment 3

[0147] Below, combine Figure 14 and Figure 15 The configuration and configuration of each component of turbofan 30 according to Embodiment 3 of the present invention will be described. figure 2 It is the completed state of the turbofan 30 of the third embodiment. The appearance is almost the same as that of the turbofan in Embodiment 1.

[0148] Next, the configuration and structure of each component of the turbofan according to the third embodiment will be described.

[0149] Figure 14 It shows the state where the disc-shaped main board 32, the shroud 33, and the blade member 34 which comprise the turbofan 30 are attached. Each part is individually extruded using thermoplastic resin. The shroud 33 constitutes an outside air intake duct of the fan. The blade member 34 is inserted into the fitting part C of the main board 32 (with Figure 7 same shape) and the fitting part D of the shield 33 (with Figure 12 The same shape) and...

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Abstract

The invention provides a turbo fan which is evenly welded by ultrasonic welding, so that the welding quality is improved compared with the turbo fan in the prior art. In this turbofan, a main plate having a boss fixed to a rotating shaft of a motor at a central portion and a shroud having blades having a plurality of blade portions are respectively molded with thermoplastic resin. The blade-equipped shroud is integrally assembled with the main board by ultrasonic welding, and each blade portion of the blade-equipped shroud has at least one or more protrusions. Each blade portion of the shroud with blades has at least one protrusion, the main plate has a fitting portion (A) that fits with the blade portion of the shroud with blades, and the fitting portion ( A) Forming a hole into which the protrusion is inserted.

Description

technical field [0001] The present invention relates to a turbofan molded of thermoplastic resin mounted on an air conditioner, and relates to a turbofan capable of confirming and improving welding quality. Background technique [0002] A conventional turbo fan includes a fan body and a shroud in which a main board and a plurality of blades of a bag-like hollow structure with an opening are integrally formed of thermoplastic resin. In addition, on each blade of the fan main body, a fitting recess communicating with the blade hollow portion is formed at the front end of the blade, and a fitting protrusion extending from the shroud to the fan height direction is formed at a position corresponding to each blade of the shroud. department. [0003] In addition, after the fitting protrusion of the shroud is inserted into the fitting recess of the fan main body, the surface of the shroud and the blade tip welding portion forming the inclined surface of the fan main body and the si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/02
CPCF04D29/023F04D29/281F04D29/30B29C65/08B29C65/7814B29C66/12463B29C66/30223B29C66/54B29L2031/08F04D17/10
Inventor 岩井晴义礒部竜也
Owner NISSHINBO MECHATRONICS