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Air discharge device

A technology of air blowing and airflow, which is applied in air handling equipment, pipeline layout, transportation and packaging, etc., and can solve the problems of unpredictable airflow reach distance, no insight, etc.

Active Publication Date: 2020-11-24
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the above-mentioned prior art, it is only disclosed that the auxiliary outlet is provided around the main hole, but there is no indication of the findings of the present inventors.
Therefore, it is difficult to predict the further improvement of the reaching distance of the airflow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0068] refer to Figure 1 to Figure 8 This embodiment will be described. The air blowing device 1 of the present embodiment is applied to an air blowing port of an air-conditioning unit for air-conditioning a vehicle interior. Although not shown in the figure, the air conditioning unit is arranged on the inner side of the instrument panel provided at the frontmost part in the vehicle interior. In addition, the air outlet of the air conditioning unit is provided on the instrument panel or its inner side.

[0069] Such as figure 1 and figure 2 As shown, the air blowing device 1 includes a blowing unit 10 for blowing out airflow. The blower unit 10 has formed therein an air flow path that guides the airflow adjusted to a desired temperature by the air conditioning unit into the room. The blowing unit 10 includes: a duct portion 16 ; a hole forming portion 12 forming a main hole 14 through which an airflow to be a working airflow is blown; and a flange portion 20 provided ou...

no. 2 approach

[0108] Next, refer to Figure 9 ~ Figure 12 A second embodiment will be described. This embodiment differs from the first embodiment in that a constriction fin 28 that constricts the air flow flowing in the main passage 18 is provided inside the duct portion 16 . In this embodiment, the parts different from the first embodiment will be mainly described, and the description of the same parts as the first embodiment may be omitted.

[0109] Such as Figure 9 As shown, in the blower unit 10 of the present embodiment, the contraction fins 28 are provided inside the duct unit 16 . Such as Figure 10 As shown, the constricted fins 28 are along the inner wall surface 141 of the main hole 14 at approximately the central portion of the short sides of the inner wall surface 141 of the main hole 14 in such a manner that the main flow path 18 formed inside the duct portion 16 is divided up and down. extended on the long side. Although not shown, both ends in the longitudinal directio...

no. 3 approach

[0127] Next, refer to Figure 13 ~ Figure 15 A third embodiment will be described. This embodiment differs from the first embodiment in that the inner wall surface 181 forming the main flow path 18 is provided with the concave-convex portion 30 . In this embodiment, the parts different from the first embodiment will be mainly described, and the description of the same parts as the first embodiment may be omitted.

[0128] Such as Figure 13 As shown, in the blowing unit 10 of this embodiment, the inner wall surface 181 forming the main passage 18 is provided with concave and convex parts 30 in which concave parts and convex parts are alternately arranged along the flow direction of the airflow in the main passage 18 . Specifically, the concavo-convex portion 30 is formed in substantially the entire area inside the partition portion 26 that partitions the main flow path 18 and the auxiliary flow path 24 in the duct portion 16 .

[0129] Such as Figure 14 As shown, the conc...

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Abstract

An air discharge device (1) equipped with a discharge section (10) for discharging a stream of air. The discharge section includes: a main opening (14) through which an airstream serving as an operating airstream is discharged; an auxiliary opening (22) which is formed at the periphery of the main opening and through which a supporting airstream is discharged; and a swirl suppression structure (180) for suppressing the development of lateral swirls formed inside a velocity boundary layer (BL) of the operating airstream downstream from an outlet of the main opening. The swirl suppression structure is a structure for causing the main flow of the supporting airstream and a center portion (BLc) of the thickness ([Delta]) of the velocity boundary layer of the operating airstream formed downstream from the outlet of the main opening to converge downstream from the outlet of the main opening.

Description

[0001] Cross-references to related applications [0002] This application is based on Japanese patent application No. 2018-76325 filed on April 11, 2018, Japanese patent application No. 2018-199383 filed on October 23, 2018, and Japanese patent filed on December 25, 2018 Application No. 2018-240805, and its contents are hereby incorporated by reference. technical field [0003] The present invention relates to an air blowing device provided with a blowing unit for blowing out airflow. Background technique [0004] Conventionally, there is known an air nozzle in which an auxiliary outlet is provided around a main hole forming an air flow to be a working airflow, and the auxiliary outlet forms a shield airflow that prevents the main hole from being introduced into the working airflow. Introduction of ambient air (for example, refer to Patent Document 1). [0005] prior art literature [0006] patent documents [0007] Patent Document 1: Japanese Patent Application Laid-Ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/06B60H1/34F24F13/08
CPCF24F13/06B60H1/3407B60H1/345F24F2013/0612B60H1/3457F24F13/072
Inventor 山冈润酒井雅晴新美康彦中村隆仁小松原祐介长滨真梨惠大森康挥早川将悟蛸谷悟司冈村侑儿吉田达哉
Owner DENSO CORP
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